CN108478949B - Escape slide bar based on gear speed change - Google Patents

Abstract

The invention belongs to the technical field of escape slide bars, and particularly relates to an escape slide bar based on gear speed change, which comprises an escape box, a slide bar, a fixing mechanism, a fixed support and a fixed plate, wherein when people use the escape slide bar designed by the invention, when an emergency happens in a room, people enter the escape box through an escape opening and a U-shaped escape channel; then opening a switch of the escape box to enable the escape box to slide downwards along the sliding rod; when the escape box slides downwards along the sliding rod and is in contact with the triggering swing block at the lower side of the escape box, the triggering swing block can swing towards the direction of the sliding rod; the swinging support swings by triggering the swinging block to swing; when the swing support is completely moved into the second mounting groove on the slide bar, the escape box can slide downwards through the fixing mechanism; finally, the utility model slides to the ground. The escape slide bar designed by the invention can ensure that when one of the 5 fixing mechanisms is in relation, the other 4 slide bars play a role in fixing; the stability of the slide bar is ensured.

Description

Escape slide bar based on gear speed change

Technical Field

The invention belongs to the technical field of escape slide bars, and particularly relates to an escape slide bar based on gear speed change.

Background

When an emergency occurs in a room, people living in the room need to leave the room quickly through the slide bar and move to the flat ground; however, the currently used sliding rod often swings in the using process and is not stable enough; the life safety of people is affected; therefore, it is very necessary to design a stable escape sliding bar.

The invention designs an escape sliding rod based on gear speed change to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses an escape sliding rod based on gear speed change, which is realized by adopting the following technical scheme.

The utility model provides a slide bar of fleing based on gear change which characterized in that: the escape box comprises an escape box, a slide bar, a fixing mechanism, a fixing support, a fixing plate, an escape box inlet, a U-shaped escape channel, a first mounting groove, a second mounting groove and a spring mounting groove, wherein 5 second mounting grooves are uniformly formed in the outer circumferential surface of the slide bar up and down along the axis direction; the upper sides of the 5 second mounting grooves on the slide bar are respectively provided with a first mounting groove; the side surfaces of the ends, which are positioned in the 5 second mounting grooves on the slide bar and are provided with the first mounting grooves, are respectively provided with a spring mounting groove; the upper end of the sliding rod is arranged on one side of the wall through a fixed support; a fixed plate is arranged at the lower side of the slide bar; the sliding rod is fixed with the bottom side of the wall through a fixing plate; one side of the wall close to the sliding rod is provided with an escape opening; the escape box is an annular hollow shell; the outer circle surface of the escape box is provided with an escape box inlet; the escape box is arranged on the sliding rod; a U-shaped escape channel is connected between the escape box and an escape opening formed in the wall in the initial state; one end of the U-shaped escape channel is fixedly arranged on the wall; 5 fixed establishment installs between slide bar and wall, and 5 fixed establishment respectively with 5 first mounting grooves, 5 second mounting grooves and 5 spring mounting groove cooperations.

The fixing mechanism comprises a fixing structure, a compression spring, a trigger block, a trigger swinging block, a trigger gear, a first trigger rack, a leaf spring, a spring fixing plate, a swinging support, a trigger plate, a volute spiral spring, a first rotating shaft, a first gear, a limiting block, a driving rod, a rack connecting plate, a trigger mounting groove, a first guide hole, a second guide hole, a rotating shaft hole, a connecting block, a first connection, a second rotating shaft, a second gear, a third rotating shaft, a second connecting weight, a second trigger rack, an arc limiting block, a first avoiding opening, a second avoiding opening, a limiting groove and an arc clamping groove, wherein one end of the first rotating shaft is arranged in a circular hole on the side surface close to one end of the first mounting groove in the corresponding second mounting groove; the other end of the first rotating shaft is positioned in the corresponding spring mounting groove; a volute spiral spring is arranged between the first rotating shaft and the corresponding spring mounting groove; the inner end of the scroll spring is arranged on the outer circular surface of the first rotating shaft; the outer end of the spiral spring is arranged at the bottom end of the corresponding spring mounting groove.

The fixing structure consists of a first connecting block and an arc-shaped limit; the outer arc surface of the arc limiting block is arranged at one end of the first connecting block; the other end of the first connecting block is arranged on the wall; the inner side of the arc-shaped limit is provided with an arc-shaped clamping groove; the inner side of the first connecting block is provided with a limiting groove; the limiting groove is communicated with the arc-shaped clamping groove; the lower end of one side, close to the first connecting block, in the arc-shaped clamping groove is provided with a first avoidance opening; and a second avoiding opening is formed in one side, close to the arc limiting inner arc surface, of the arc clamping groove.

One end of the swing support is provided with a rotating shaft hole; a trigger mounting groove is formed in the inner part of one side of the swing support, which is not provided with the rotating shaft hole; a first guide hole and a second guide hole are formed in the upper end face of one side, close to the rotating shaft hole, in the trigger mounting groove; the second guide hole is positioned between the rotating shaft hole and the first guide hole; two arc-shaped limiting blocks are symmetrically arranged on two side surfaces of the swing support at the end which is not provided with the rotating shaft hole; the two arc-shaped limiting blocks are matched with the first guide hole and the second guide hole; the swing support is arranged on the first rotating shaft through the matching of the rotating shaft hole and the end, which is not provided with the volute spiral spring, of the corresponding first rotating shaft; a plate spring is arranged between the swing support and the second mounting groove; two arc-shaped limiting blocks on the swing support are matched with arc-shaped clamping grooves in the fixed structure; the swing support is matched with the corresponding second mounting groove.

A circular through hole is formed in the center of the spring fixing plate; the spring fixing plate is arranged in the trigger mounting groove on the swing support; one end of the limiting block is provided with an arc-shaped surface; one end of the limiting block, which is not provided with the arc-shaped surface, is arranged in the trigger installation groove of the swing support and is close to the arc-shaped limiting block arranged on the swing support; the limiting block is matched with a limiting groove in the fixing structure; a compression spring is arranged between one end of the limiting block positioned in the trigger mounting groove and the spring fixing plate; one end of the driving rod penetrates through a circular through hole in the spring fixing plate and is installed on the limiting block and located in the trigger installation groove; the connecting square block is arranged at the other end of the driving rod and matched with the trigger mounting groove; one end of the first connection is arranged on the end face of the connecting block far away from one side of the driving rod; the trigger block is provided with an inclined plane; one end of the trigger block is arranged at the other end of the first connection; the inclined plane on the trigger block faces the connecting square block; the trigger plate is arranged on the swing support through a first guide hole; one end of the trigger plate, which is positioned at the inner side of the swing support, is matched with the inclined plane on the trigger block; the rack connecting plate is arranged on one side of the other end of the trigger block; two ends of the third rotating shaft are respectively arranged on two end surfaces of one side, close to the rotating shaft hole, in the trigger mounting groove; the first gear is arranged at one end of the third rotating shaft; the first gear is meshed with the rack connecting plate; the second gear is arranged at the other end of the third rotating shaft; the second trigger rack is arranged on the swing support through a second guide hole; one end of the second trigger rack positioned at the inner side of the swing support is meshed with the second gear; the second connecting weight is arranged on the upper side of the second trigger rack and positioned on the outer side of the swinging support; one end of the first trigger rack is connected with the second connecting weight block; the other end of the first trigger rack is positioned in the corresponding first mounting groove; two ends of the second rotating shaft are respectively arranged on two side surfaces of the first mounting groove; the trigger gear is arranged on the second rotating shaft; the trigger gear is meshed with the first trigger rack; one end of the trigger swinging block is arranged on the outer circular surface of the trigger gear; the other end of the triggering swing block is positioned at the outer side of the sliding rod.

The diameter of the second gear is half of the diameter of the first gear.

The triggering swing block is matched with the escape box; the trigger plate is matched with the escape box.

As a further improvement of the technology, an arc-shaped chamfer is arranged at the joint of the lower end surface of the limiting groove and the arc-shaped clamping groove in the fixing structure.

As a further improvement of the technology, the side surfaces of the 5 spring mounting grooves are all provided with a ladder-shaped ring guide groove; the third gear is arranged at one end of the first rotating shaft, which is positioned in the spring mounting groove; one end of each of the three fourth rotating shafts is respectively installed in the corresponding spring installation groove, and the three fourth rotating shafts are uniformly distributed around the circumference of the third gear; the three fourth gears are respectively arranged on the three fourth rotating shafts; the three fourth gears are respectively meshed with the third gears; one end of the gear ring is provided with a trapezoidal ring guide block; the gear ring is arranged in the corresponding spring mounting groove through the matching of the ladder-shaped ring guide block and the corresponding ladder-shaped ring guide groove; the gear rings are respectively meshed with the three fourth gears; a volute spiral spring is arranged between the gear ring and the corresponding spring mounting groove; the inner end of the volute spiral spring is arranged on the outer circular surface of the gear ring; the outer end of the spiral spring is arranged at the bottom end of the corresponding spring mounting groove.

As a further improvement of the present technology, an arc-shaped compression spring is installed between the swing support and the second mounting groove as an alternative to installing the plate spring between the swing support and the second mounting groove.

As a further improvement of the technology, one end of the trigger plate, which is matched with the escape box, is just positioned at the right lower end of one side of the escape box, which corresponds to the escape box.

As a further improvement of the technology, when the triggering swing block completely enters the inner side of the sliding rod in the swinging process, the second triggering rack is just separated from the swinging support completely.

As a further improvement of the technology, the swing support and the first rotating shaft are installed through a bearing.

As a further improvement of the technology, the side of the lower end of the second trigger rack far away from the second gear is provided with an arc-shaped surface. The function of the device is to ensure that the second trigger rack can move into the second guide hole more smoothly.

The upper end of the sliding rod is arranged on one side of a wall through a fixed support; a fixed plate is arranged at the lower side of the slide bar; the sliding rod is fixed with the bottom side of the wall through a fixing plate; one side of the wall close to the sliding rod is provided with an escape opening; the escape box is an annular hollow shell; the outer circle surface of the escape box is provided with an escape box inlet; the escape box is arranged on the sliding rod; a U-shaped escape channel is connected between the escape box and an escape opening formed in the wall in the initial state; one end of the U-shaped escape channel is fixedly arranged on the wall; 5 fixing mechanisms are arranged between the sliding rod and the wall; for the fixing mechanism, one end of the first rotating shaft is arranged in a circular hole on the side surface close to one end of the first mounting groove in the corresponding second mounting groove; the other end of the first rotating shaft is positioned in the corresponding spring mounting groove; the third gear is arranged at one end of the first rotating shaft, which is positioned in the spring mounting groove; one end of each of the third rotating shafts is arranged in the corresponding spring mounting groove; the three fourth gears are respectively arranged on the three fourth rotating shafts; the three fourth gears are respectively meshed with the third gears; one end of the gear ring is provided with a trapezoidal ring guide block; the gear ring is arranged in the corresponding spring mounting groove through the matching of the ladder-shaped ring guide block and the corresponding ladder-shaped ring guide groove; the gear rings are respectively meshed with the three fourth gears; a volute spiral spring is arranged between the gear ring and the corresponding spring mounting groove; the fixing structure consists of a first connecting block and an arc-shaped limit; the outer arc surface of the arc limiting block is arranged at one end of the first connecting block; the other end of the first connecting block is arranged on the wall; two arc-shaped limiting blocks are symmetrically arranged on two side surfaces of the swing support at the end which is not provided with the rotating shaft hole; the swing support is arranged on the first rotating shaft through the matching of the rotating shaft hole and the end, which is not provided with the volute spiral spring, of the corresponding first rotating shaft; a plate spring is arranged between the swing support and the second mounting groove; two arc-shaped limiting blocks on the swing support are matched with arc-shaped clamping grooves in the fixed structure; the swing support is matched with the corresponding second mounting groove; the spring fixing plate is arranged in the trigger mounting groove on the swing support; one end of the limiting block is provided with an arc-shaped surface; one end of the limiting block, which is not provided with the arc-shaped surface, is arranged in the trigger mounting groove of the swing support; the limiting block is matched with a limiting groove in the fixing structure; a compression spring is arranged between one end of the limiting block positioned in the trigger mounting groove and the spring fixing plate; one end of the driving rod penetrates through a circular through hole in the spring fixing plate and is installed on the limiting block and located in the trigger installation groove; the connecting square block is arranged at the other end of the driving rod and matched with the trigger mounting groove; one end of the first connection is arranged on the end face of the connecting block far away from one side of the driving rod; the trigger block is provided with an inclined plane; one end of the trigger block is arranged at the other end of the first connection; the inclined plane on the trigger block faces the connecting square block; the trigger plate is arranged on the swing support through a first guide hole; one end of the trigger plate, which is positioned at the inner side of the swing support, is matched with the inclined plane on the trigger block; the rack connecting plate is arranged on one side of the other end of the trigger block; two ends of the third rotating shaft are respectively arranged in the trigger mounting grooves; the first gear is arranged at one end of the third rotating shaft; the first gear is meshed with the rack connecting plate; the second gear is arranged at the other end of the third rotating shaft; the second trigger rack is arranged on the swing support through a second guide hole; one end of the second trigger rack positioned at the inner side of the swing support is meshed with the second gear; the second connecting weight is arranged on the upper side of the second trigger rack and positioned on the outer side of the swinging support; one end of the first trigger rack is connected with the second connecting weight block; the other end of the first trigger rack is positioned in the corresponding first mounting groove; two ends of the second rotating shaft are respectively arranged on two side surfaces of the first mounting groove; the trigger gear is arranged on the second rotating shaft; the trigger gear is meshed with the first trigger rack; one end of the trigger swinging block is arranged on the outer circular surface of the trigger gear; the other end of the trigger swing block is positioned at the outer side of the sliding rod; the triggering swing block is matched with the escape box; the trigger plate is matched with the escape box. When an emergency occurs in a room, people living in the room need to leave the room quickly and move to the flat ground; but moving speed may be reduced by stairs or elevators; the life safety of people is affected; in the invention, when an emergency occurs in a room, people enter the escape box through the escape opening and the U-shaped escape channel; then opening a switch of the escape box to enable the escape box to slide downwards along the sliding rod; when the escape box slides downwards along the sliding rod and is in contact with the triggering swing block at the lower side of the escape box, the triggering swing block can swing towards the direction of the sliding rod; the trigger swinging block swings to drive the trigger gear to rotate; the trigger gear rotates to enable the first trigger rack to move upwards; the first trigger rack moves upwards to drive the second connecting weight block to move upwards; the second connecting weight block moves upwards to drive the second trigger rack to move upwards along the second guide hole; the second gear can rotate when the second trigger rack moves upwards; the second gear wheel rotates to drive the third rotating shaft to rotate; the third rotating shaft rotates to drive the first gear to rotate; the first gear rotates to enable the rack connecting plate to move towards one side of the sliding rod; the rack connecting plate moves to drive the trigger block to move towards one side of the sliding rod; the trigger block moves to drive the first connecting block to move; the first connecting movement drives the connecting square block to move; the connecting block moves to drive the driving rod to move towards one side of the sliding rod; the driving rod moves to drive the limiting block to move; the limiting block moves to compress the compression spring; when the limiting block is completely separated from the limiting groove on the fixed structure in the moving process of the limiting block, the limiting block is restored to the original position under the action of the compression spring; meanwhile, the swinging support can swing downwards under the pressure action of the escape box; in the swinging process of the swinging support, the swinging support compresses the plate spring; meanwhile, the first rotating shaft is driven to rotate by the swinging of the swinging support; the first rotating shaft rotates to drive the third gear to rotate; the third gear rotates to drive the three fourth gears to rotate; the fourth gear rotates to drive the gear ring to rotate; the rotation of the gear ring can make the volute spiral spring exert force; when the swing support is completely moved into the second mounting groove on the slide bar, the escape box can slide downwards through the fixing mechanism; when the escape box is completely separated from the fixing mechanism, the spiral spring can be gradually restored; during recovery, the volute spring causes the ring gear to rotate; the gear ring rotates to drive the three fourth gears to rotate; the fourth gear rotates to drive the third gear to rotate; the third gear rotates to drive the first rotating shaft to rotate; the first rotating shaft rotates to drive the swinging support to swing; meanwhile, the swinging support can also swing upwards under the action of the plate spring; when the arc-shaped surface on the limiting block is contacted with the arc-shaped chamfer on the fixed structure in the swinging process of the swinging support, the arc-shaped chamfer can press the limiting block to enable the limiting block to move towards one side of the sliding rod; when the arc-shaped limiting block on the swinging support is completely contacted with the arc-shaped clamping groove on the fixed structure, the second trigger rack just moves to be completely contacted with the corresponding second guide hole; and can move to the inner side of the swing support to be meshed with the second gear under the action of the gravity of the second connecting weight; at the moment, the limiting block can gradually move into the limiting groove on the fixed structure under the action of the compression spring; the limiting rod drives the driving rod, the connecting block, the first connection, the trigger block and the rack connecting plate to gradually recover in the movement process of the limiting block; the rack connecting plate enables the first gear to rotate in the recovery process; the first gear rotates to drive the third rotating shaft to rotate; the third rotating shaft rotates to drive the second gear to rotate; the second gear rotates to enable the second trigger rack to move downwards; the second connecting heavy block is driven to move downwards by the downward movement of the second trigger rack; the second connecting weight block moves downwards to drive the first trigger rack to move downwards; the first trigger rack moves downwards to enable the trigger gear to rotate; the rotation of the trigger gear can restore the trigger swinging block to the original position; when the triggering swing block completely enters the inner side of the sliding rod in the swinging process, the second triggering rack is just separated from the swinging support completely; the function of the swing support is to prevent the second trigger rack from interfering with the swing support in the swing process of the swing support. In the invention, the diameter of the second gear is half of that of the first gear; the function is to ensure that the limiting block can be completely separated from the limiting groove through the second gear and the first gear when the contact area between the triggering swing block and the escape box is small, namely when the triggering swing block is small. The third gear, the fourth gear and the gear ring have the function of ensuring that the deformation of the volute spiral spring is smaller in the swinging process of the swinging support; the spiral spring is protected.

When the trigger swinging block is loosened in the long-time use process and the desired effect cannot be achieved, the trigger swinging block loses the function; when the triggering swinging block does not work, the escape box falls downwards to be in contact with the triggering plate and presses the triggering plate to enable the triggering plate to move downwards along the first guide hole; the trigger plate moves downwards to press the inclined plane on the trigger block so that the trigger block moves towards one side of the sliding rod; the trigger block moves to drive the first connecting block to move; the first connecting movement drives the connecting square block to move; the connecting block moves to drive the driving rod to move towards one side of the sliding rod; the driving rod moves to drive the limiting block to move; the limiting block moves to compress the compression spring; when the limiting block is completely separated from the limiting groove on the fixed structure in the moving process of the limiting block, the limiting block is restored to the original position under the action of the compression spring; meanwhile, the swinging support can swing downwards under the pressure action of the escape box; in the swinging process of the swinging support, the swinging support compresses the plate spring; meanwhile, the first rotating shaft is driven to rotate by the swinging of the swinging support; the first rotating shaft rotates to drive the third gear to rotate; the third gear rotates to drive the three fourth gears to rotate; the fourth gear rotates to drive the gear ring to rotate; the rotation of the gear ring can make the volute spiral spring exert force; when the swing support is completely moved into the second mounting groove on the slide bar, the escape box can slide downwards through the fixing mechanism; when the escape box is completely separated from the fixing mechanism, the spiral spring can be gradually restored; during recovery, the volute spring causes the ring gear to rotate; the gear ring rotates to drive the three fourth gears to rotate; the fourth gear rotates to drive the third gear to rotate; the third gear rotates to drive the first rotating shaft to rotate; the first rotating shaft rotates to drive the swinging support to swing; meanwhile, the swinging support can also swing upwards under the action of the plate spring; when the arc-shaped surface on the limiting block is contacted with the arc-shaped chamfer on the fixed structure in the swinging process of the swinging support, the arc-shaped chamfer can press the limiting block to enable the limiting block to move towards one side of the sliding rod; when the arc-shaped limiting block on the swinging support is completely contacted with the arc-shaped clamping groove on the fixed structure, the second trigger rack just moves to be completely contacted with the corresponding second guide hole; and can move to the inner side of the swing support to be meshed with the second gear under the action of the gravity of the second connecting weight; at the moment, the limiting block can gradually move into the limiting groove on the fixed structure under the action of the compression spring; the limiting rod drives the driving rod, the connecting block, the first connection block and the trigger block to gradually recover in the movement process of the limiting block; and the trigger block can restore the original position of the trigger plate in the process of restoring the trigger block. The function of the leaf spring and the scroll spring in the invention is to ensure that when one of the two fails, the other can play a role in recovery.

In the invention, when the escape box is related to one of the 5 fixing mechanisms, the other 4 fixing mechanisms are not changed; the other 4 pairs of sliding rods play a role in fixing the sliding rod at the moment.

Compared with the traditional escape slide bar technology, the escape slide bar designed by the invention can ensure that when one of the 5 fixing mechanisms is in relation, the other 4 fixing mechanisms can not be changed; the other 4 pairs of sliding rods play a role in fixing; the stability of the slide bar is ensured. Meanwhile, when the fixing mechanism passes through the leaf spring and the volute spiral spring again, one of the leaf spring and the volute spiral spring is guaranteed to be invalid, and the other can play a role in recovery. Meanwhile, the stability of the fixing structure in the using process can be ensured by triggering the swing block and the trigger plate.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of the distribution of the escape opening.

Fig. 4 is a schematic view showing the installation of the U-shaped escape passage.

Fig. 5 is a schematic view of the U-shaped escape passage and the escape box.

Fig. 6 is a schematic structural view of the escape box.

Fig. 7 is a schematic view of a slide bar structure.

FIG. 8 is a schematic view of the second mounting groove distribution.

FIG. 9 is a schematic diagram of spring mounting groove distribution.

Fig. 10 is a schematic view of the ladder ring guide.

Fig. 11 is a schematic view of the securing mechanism installation.

Fig. 12 is an external view of the fixing mechanism.

Fig. 13 is a schematic view of the distribution of the internal structure of the fixing mechanism.

Fig. 14 is a schematic view of the internal structure of the fixing mechanism.

FIG. 15 is a schematic view of the spacing groove distribution.

Fig. 16 is a schematic view of a fixing structure.

Fig. 17 is an installation schematic diagram of an arc-shaped limiting block.

FIG. 18 is a schematic view of a compression spring installation.

FIG. 19 is a rack bar attachment schematic.

Fig. 20 is a schematic view of the engagement of the rack connecting plate with the first gear.

Fig. 21 is a schematic view of the fourth gear in cooperation with the ring gear.

FIG. 22 is a schematic view of a scroll spring installation.

Fig. 23 is a schematic view of the installation of the ladder ring guide.

Fig. 24 is a third shaft mounting schematic.

FIG. 25 is a schematic view of the pendulum support mounting.

Number designation in the figures: 1. a wall; 2. fixing and supporting; 3. an escape box; 4. a slide bar; 5. a fixing mechanism; 6. a fixing plate; 7. a U-shaped escape channel; 8. an escape opening; 9. an inlet of the escape box; 10. a first mounting groove; 11. a second mounting groove; 12. a spring mounting groove; 13. a ladder ring guide groove; 14. a fixed structure; 15. a compression spring; 16. a trigger block; 17. triggering the swinging block; 18. triggering a gear; 19. a first trigger rack; 20. an arc-shaped limiting block; 21. a plate spring; 22. a spring fixing plate; 23. a swinging support; 24. a trigger plate; 25. a volute spiral spring; 26. a first rotating shaft; 27. a first gear; 28. a limiting block; 29. a drive rod; 30. a rack connecting plate; 31. arc-shaped limiting; 32. a first connection block; 33. a limiting groove; 34. arc chamfering; 35. an arc-shaped clamping groove; 36. triggering the mounting groove; 37. a first guide hole; 38. a second guide hole; 39. a rotating shaft hole; 40. connecting the squares; 41. a first connection; 42. a second rotating shaft; 43. a second gear; 44. a third rotating shaft; 45. a third gear; 46. a fourth gear; 47. a ring gear; 48. a fourth rotating shaft; 49. a ladder-shaped ring guide block; 50. a second connecting weight; 51. a second trigger rack; 52. a first avoidance opening; 53. a second avoidance opening.

Detailed Description

As shown in fig. 1 and 2, the escape box comprises an escape box 3, a slide bar 4, a fixing mechanism 5, a fixing support 2, a fixing plate 6, an escape box inlet 9, a U-shaped escape channel 7, a first mounting groove 10, a second mounting groove 11 and a spring mounting groove 12, wherein as shown in fig. 7, 5 second mounting grooves 11 are uniformly formed in the outer circumferential surface of the slide bar 4 along the axial direction; as shown in fig. 8, a first mounting groove 10 is formed on the upper side of each of the 5 second mounting grooves 11 on the slide bar 4; as shown in fig. 9, the side surfaces of the 5 second installation grooves 11 on the sliding rod 4, which are provided with one end of the first installation groove 10, are respectively provided with a spring installation groove 12; as shown in fig. 1, the upper end of the sliding rod 4 is mounted on one side of the wall 1 through a fixed support 2; a fixed plate 6 is arranged at the lower side of the slide bar 4; the slide bar 4 is fixed with the bottom side of the wall 1 through a fixing plate 6; as shown in fig. 3, an escape opening 8 is formed in one side of the wall 1 close to the sliding rod 4; as shown in fig. 6, the escape box 3 is an annular hollow shell; an escape box inlet 9 is formed in the outer circular surface of the escape box 3; as shown in fig. 1, the escape box 3 is mounted on a slide bar 4; as shown in fig. 1 and 5, a U-shaped escape passage 7 is connected between the escape box 3 and an escape opening 8 formed in the wall 1 in the initial state; as shown in fig. 4, one end of the U-shaped escape passage 7 is fixedly installed on the wall 1; as shown in fig. 2, 5 fixing mechanisms 14 are installed between the slide bar 4 and the wall 1, and 5 fixing mechanisms 5 are respectively fitted with 5 first mounting grooves 10, 5 second mounting grooves 11, and 5 spring mounting grooves 12.

As shown in fig. 11, the fixing mechanism 5 includes a fixing structure 14, a compression spring 15, a trigger block 16, a trigger pendulum block 17, a trigger gear 18, a first trigger rack 19, a leaf spring 21, a spring fixing plate 22, a pendulum support 23, a trigger plate 24, a volute spring 25, a first rotating shaft 26, a first gear 27, a limit block 28, a driving rod 29, a rack connecting plate 30, a trigger mounting groove 36, a first guide hole 37, a second guide hole 38, a rotating shaft hole 39, a connecting block 40, a first connecting 41, a second rotating shaft 42, a second gear 43, a third rotating shaft 44, a second connecting weight 50, a second trigger rack 51, an arc-shaped limit block 20, a first avoiding opening 52, a second avoiding opening 53, a limit groove 33, and an arc-shaped clamping groove 35, as shown in fig. 11, one end of the first rotating shaft 26 is installed in a circular hole on a side surface of the corresponding second installation groove 11 near one end of the first installation groove 10; the other end of the first rotating shaft 26 is positioned in the corresponding spring mounting groove 12; as shown in fig. 12, a spiral spring 25 is installed between the first rotating shaft 26 and the corresponding spring installation groove 12; the inner end of the spiral spring 25 is mounted on the outer circumferential surface of the first rotating shaft 26; the outer end of the spiral spring 25 is installed at the bottom end of the corresponding spring installation groove 12.

As shown in fig. 15, the fixing structure 14 is composed of a first connecting block 32 and an arc-shaped limiting block 31; the outer arc surface of the arc limiting block 31 is arranged at one end of the first connecting block 32; as shown in fig. 1, the other end of the first connection block 32 is mounted on the wall 1; as shown in fig. 16, an arc-shaped slot 35 is formed on the inner side of the arc-shaped limiting block 31; the inner side of the first connecting block 32 is provided with a limit groove 33; the limiting groove 33 is communicated with the arc-shaped clamping groove 35; the lower end of one side of the arc-shaped clamping groove 35, which is close to the first connecting block 32, is provided with a first avoidance opening; a second avoidance opening 53 is formed in one side, close to the inner arc surface of the arc limiting 31, of the arc clamping groove 35.

As shown in fig. 17, a rotating shaft hole 39 is formed at one end of the swing support 23; the inner part of the swing support 23, which is not provided with the rotating shaft hole 39, is provided with a trigger mounting groove 36; the upper end surface of one side, close to the rotating shaft hole 39, in the trigger mounting groove 36 is provided with a first guide hole 37 and a second guide hole 38; the second guide hole 38 is located between the rotation shaft hole 39 and the first guide hole 37; two arc-shaped limiting blocks 20 are symmetrically arranged on two side surfaces of the swing support 23 at the end which is not provided with the rotating shaft hole 39; the two arc-shaped limiting blocks 20 are matched with the first guide holes 37 and the second guide holes 38; as shown in fig. 12, the swing support 23 is mounted on the first rotating shaft 26 through the rotating shaft hole 39 and the corresponding end of the first rotating shaft 26, which is not mounted with the spiral spring 25; as shown in fig. 13, a plate spring 21 is installed between the swing support 23 and the second mounting groove 11; the two arc-shaped limiting blocks 20 on the swing support 23 are matched with the arc-shaped clamping grooves 35 in the fixed structure 14; the swing supports 23 are fitted to the corresponding second mounting grooves 11.

As shown in fig. 13, the spring fixing plate 22 has a circular through hole at a central position; the spring fixing plate 22 is arranged in the trigger mounting groove 36 on the swing support 23; as shown in FIG. 18, one end of the stop block 28 has an arcuate surface; as shown in fig. 14, one end of the stopper 28, which does not have an arc-shaped surface, is mounted in the trigger mounting groove 36 of the swing support 23 and is close to the arc-shaped stopper 20 mounted on the swing support 23; the stop block 28 cooperates with a stop slot 33 in the fixed structure 14; as shown in fig. 18, a compression spring 15 is installed between one end of the limiting block 28 located in the trigger installation groove 36 and the spring fixing plate 22; one end of the driving rod 29 passes through the circular through hole on the spring fixing plate 22 and is installed on the limiting block 28 and is positioned in the trigger installation groove 36; the connecting block 40 is arranged at the other end of the driving rod 29, and the connecting block 40 is matched with the trigger mounting groove 36; as shown in fig. 19, one end of the first link 41 is mounted on the end surface of the link block 40 on the side away from the drive lever 29; the trigger block 16 is provided with an inclined surface; one end of the trigger block 16 is mounted at the other end of the first connection 41; the inclined surface on the trigger block 16 faces the connection block 40; the trigger plate 24 is mounted on the swing support 23 through the first guide hole 37; one end of the trigger plate 24, which is positioned at the inner side of the swinging support 23, is matched with the inclined surface on the trigger block 16; the rack connecting plate 30 is arranged on one side of the other end of the trigger block 16; as shown in fig. 24, both ends of the third rotating shaft 44 are respectively installed on both end surfaces of the side close to the rotating shaft hole 39 in the trigger installation groove 36; as shown in fig. 20, the first gear 27 is mounted on one end of the third rotating shaft 44; the first gear 27 is meshed with the rack connecting plate 30; the second gear 43 is mounted on the other end of the third rotating shaft 44; the second trigger rack 51 is mounted on the swing support 23 through the second guide hole 38; one end of the second trigger rack 51 positioned at the inner side of the swing support 23 is meshed with the second gear 43; the second connecting weight 50 is installed on the upper side of the second trigger rack 51 and is located on the outer side of the swing support 23; one end of the first trigger rack 19 is connected with the second connecting weight 50; the other end of the first trigger rack 19 is positioned in the corresponding first mounting groove 10; both ends of the second rotating shaft 42 are respectively installed on both side surfaces of the first installation groove 10; the trigger gear 18 is mounted on the second rotating shaft 42; the trigger gear 18 is meshed with the first trigger rack 19; one end of the trigger pendulum block 17 is arranged on the outer circular surface of the trigger gear 18; the other end of the trigger pendulum block 17 is positioned outside the slide bar 4.

The diameter of the second gear 43 is half of the diameter of the first gear 27.

The triggering swing block 17 is matched with the escape box 3; the trigger plate 24 is engaged with the escape box 3.

The joint between the lower end surface of the limiting groove 33 and the arc-shaped clamping groove 35 in the fixing structure 14 is provided with an arc-shaped chamfer 34.

As shown in fig. 10, the side surfaces of the 5 spring mounting grooves 12 are all provided with a ladder-shaped ring guide groove 13; as shown in fig. 21, the third gear 45 is mounted on one end of the first rotary shaft 26 located in the spring mounting groove 12; one end of each of the three fourth rotating shafts 48 is mounted in the corresponding spring mounting groove 12, and the three fourth rotating shafts 48 are uniformly distributed around the circumference of the third gear 45; the three fourth gears 46 are respectively mounted on the three fourth rotating shafts 48; as shown in fig. 22, three fourth gears 46 are respectively meshed with the third gears 45; as shown in fig. 23, a ladder ring guide 49 is mounted to one end of the ring gear 47; the gear ring 47 is installed in the corresponding spring installation groove 12 through the cooperation of the ladder ring guide block 49 and the corresponding ladder ring guide groove 13; the ring gears 47 are respectively meshed with the three fourth gears 46; as shown in fig. 25, a spiral spring 25 is installed between the ring gear 47 and the corresponding spring installation groove 12; the inner end of the spiral spring 25 is mounted on the outer circumferential surface of the ring gear 47; the outer end of the spiral spring 25 is installed at the bottom end of the corresponding spring installation groove 12.

As an alternative to the installation of the plate spring 21 between the swing support 23 and the second installation groove 11, an arc-shaped compression spring 15 is installed between the swing support 23 and the second installation groove 11.

The end of the trigger plate 24, which is matched with the escape box 3, is just positioned at the right lower end of the corresponding side of the escape box 3.

When the trigger swing block 17 completely enters the inner side of the slide rod 4 in the swinging process, the second trigger rack 51 is just completely separated from the swinging support 23.

The swing support 23 and the first rotating shaft 26 are mounted by a bearing.

The lower end of the second trigger rack 51 away from the second gear 43 has an arc-shaped surface. The function of which is to ensure that the second trigger rack 51 can move into the second guide hole 38 more smoothly.

In summary, the following steps:

the escape sliding rod 4 designed by the invention can ensure that when one of the 5 fixing mechanisms 5 is in relation, the other 4 fixing mechanisms are not changed through the 5 fixing mechanisms 5; the other 4 pairs of sliding rods 4 play a role in fixing; the stability of the slide bar 4 is ensured. Meanwhile, when the fixing mechanism 5 ensures that one of the two is failed through the leaf spring 21 and the scroll spring 25, the other can play a role in recovery. Meanwhile, the stability of the fixing structure 14 in the use process can be ensured by the triggering swing block 17 and the triggering plate 24.

The upper end of a sliding rod 4 is arranged on one side of a wall 1 through a fixed support 2; a fixed plate 6 is arranged at the lower side of the slide bar 4; the slide bar 4 is fixed with the bottom side of the wall 1 through a fixing plate 6; an escape opening 8 is formed in one side of the wall 1, which is close to the sliding rod 4; the escape box 3 is an annular hollow shell; an escape box inlet 9 is formed in the outer circular surface of the escape box 3; the escape box 3 is arranged on the sliding rod 4; a U-shaped escape passage 7 is connected between the escape box 3 and an escape opening 8 formed in the wall 1 in the initial state; one end of the U-shaped escape channel 7 is fixedly arranged on the wall 1; 5 fixing mechanisms 14 are arranged between the sliding rod 4 and the wall 1; for the fixing mechanism 5, one end of the first rotating shaft 26 is installed in a circular hole on the side surface close to one end of the first installation groove 10 in the corresponding second installation groove 11; the other end of the first rotating shaft 26 is positioned in the corresponding spring mounting groove 12; the third gear 45 is mounted at one end of the first rotating shaft 26 in the spring mounting groove 12; one end of each of the three fourth rotating shafts 48 is respectively installed in the corresponding spring installation groove 12; the three fourth gears 46 are respectively mounted on the three fourth rotating shafts 48; three fourth gears 46 are respectively meshed with the third gears 45; one end of the gear ring 47 is provided with a ladder-shaped ring guide block 49; the gear ring 47 is installed in the corresponding spring installation groove 12 through the cooperation of the ladder ring guide block 49 and the corresponding ladder ring guide groove 13; the ring gears 47 are respectively meshed with the three fourth gears 46; a volute spring 25 is arranged between the gear ring 47 and the corresponding spring mounting groove 12; the fixed structure 14 is composed of a first connecting block 32 and an arc-shaped limiting block 31; the outer arc surface of the arc limiting block 31 is arranged at one end of the first connecting block 32; the other end of the first connecting block 32 is mounted on the wall 1; two arc-shaped limiting blocks 20 are symmetrically arranged on two side surfaces of the swing support 23 at the end which is not provided with the rotating shaft hole 39; the swing support 23 is arranged on the first rotating shaft 26 through the matching of the rotating shaft hole 39 and the end of the corresponding first rotating shaft 26, which is not provided with the scroll spring 25; a plate spring 21 is arranged between the swing support 23 and the second mounting groove 11; the two arc-shaped limiting blocks 20 on the swing support 23 are matched with the arc-shaped clamping grooves 35 in the fixed structure 14; the swing supports 23 are matched with the corresponding second mounting grooves 11; the spring fixing plate 22 is arranged in the trigger mounting groove 36 on the swing support 23; one end of the limiting block 28 is provided with an arc-shaped surface; one end of the limiting block 28, which is not provided with an arc-shaped surface, is arranged in the trigger installation groove 36 of the swing support 23; the stop block 28 cooperates with a stop slot 33 in the fixed structure 14; a compression spring 15 is arranged between one end of the limiting block 28 positioned in the trigger mounting groove 36 and the spring fixing plate 22; one end of the driving rod 29 passes through the circular through hole on the spring fixing plate 22 and is installed on the limiting block 28 and is positioned in the trigger installation groove 36; the connecting block 40 is arranged at the other end of the driving rod 29, and the connecting block 40 is matched with the trigger mounting groove 36; one end of the first connection 41 is arranged on the end surface of the connection block 40 far away from the driving rod 29; the trigger block 16 is provided with an inclined surface; one end of the trigger block 16 is mounted at the other end of the first connection 41; the inclined surface on the trigger block 16 faces the connection block 40; the trigger plate 24 is mounted on the swing support 23 through the first guide hole 37; one end of the trigger plate 24, which is positioned at the inner side of the swinging support 23, is matched with the inclined surface on the trigger block 16; the rack connecting plate 30 is arranged on one side of the other end of the trigger block 16; both ends of the third rotating shaft 44 are respectively installed in the trigger installation grooves 36; the first gear 27 is mounted on one end of the third rotating shaft 44; the first gear 27 is meshed with the rack connecting plate 30; the second gear 43 is mounted on the other end of the third rotating shaft 44; the second trigger rack 51 is mounted on the swing support 23 through the second guide hole 38; one end of the second trigger rack 51 positioned at the inner side of the swing support 23 is meshed with the second gear 43; the second connecting weight 50 is installed on the upper side of the second trigger rack 51 and is located on the outer side of the swing support 23; one end of the first trigger rack 19 is connected with the second connecting weight 50; the other end of the first trigger rack 19 is positioned in the corresponding first mounting groove 10; both ends of the second rotating shaft 42 are respectively installed on both side surfaces of the first installation groove 10; the trigger gear 18 is mounted on the second rotating shaft 42; the trigger gear 18 is meshed with the first trigger rack 19; one end of the trigger pendulum block 17 is arranged on the outer circular surface of the trigger gear 18; the other end of the trigger swinging block 17 is positioned at the outer side of the sliding rod 4; the triggering swing block 17 is matched with the escape box 3; the trigger plate 24 is engaged with the escape box 3. When an emergency occurs in a room, people living in the room need to leave the room quickly and move to the flat ground; but moving speed may be reduced by stairs or elevators; the life safety of people is affected; in the invention, when an emergency occurs in a room, people enter the escape box 3 through the escape opening 8 and the U-shaped escape passage 7; then the switch of the escape box 3 is opened to enable the escape box 3 to slide down along the slide bar 4; when the escape box 3 slides downwards along the sliding rod 4 and the lower side of the escape box 3 is in contact with the triggering swing block 17, the triggering swing block 17 swings towards the direction of the sliding rod 4; the trigger swinging block 17 swings to drive the trigger gear 18 to rotate; the trigger gear 18 rotates so that the first trigger rack 19 moves upward; the first trigger rack 19 moves upwards to drive the second connecting weight 50 to move upwards; the second connecting weight 50 moves upwards to drive the second trigger rack 51 to move upwards along the second guide hole 38; the upward movement of the second trigger rack 51 causes the second gear 43 to rotate; the second gear 43 rotates to drive the third rotating shaft 44 to rotate; the third rotating shaft 44 rotates to drive the first gear 27 to rotate; the first gear 27 rotates so that the rack link plate 30 moves toward the slide bar 4 side; the rack connecting plate 30 moves to drive the trigger block 16 to move towards one side of the sliding rod 4; the trigger block 16 moves to drive the first connection 41 to move; the first connection 41 moves to drive the connection block 40 to move; the connecting block 40 moves to drive the driving rod 29 to move towards one side of the sliding rod 4; the driving rod 29 moves to drive the limiting block 28 to move; the stopper 28 moves to compress the compression spring 15; when the limiting block 28 is completely separated from the limiting groove 33 on the fixing structure 14 in the moving process of the limiting block 28, the limiting block 28 is restored to the original position under the action of the compression spring 15; meanwhile, the swing support 23 can swing downwards under the pressure of the escape box 3; during the swinging process of the swinging support 23, the swinging support 23 compresses the plate spring 21; meanwhile, the swing support 23 swings to drive the first rotating shaft 26 to rotate; the rotation of the first rotating shaft 26 drives the third gear 45 to rotate; the third gear 45 rotates to drive the three fourth gears 46 to rotate; the fourth gear 46 rotates to drive the gear ring 47 to rotate; rotation of ring gear 47 will cause scroll spring 25 to be forced up; when the swing support 23 is completely moved into the second mounting groove 11 of the slide bar 4, the escape box 3 can slide downwards through the fixing mechanism 5; when the escape box 3 is completely separated from the fixing mechanism 5, the spiral spring 25 is gradually restored; during recovery, scroll spring 25 causes ring gear 47 to rotate; the gear ring 47 rotates to drive the three fourth gears 46 to rotate; the fourth gear 46 rotates to drive the third gear 45 to rotate; the third gear 45 rotates to drive the first rotating shaft 26 to rotate; the first rotating shaft 26 rotates to drive the swinging support 23 to swing; meanwhile, the swinging support 23 also swings upwards under the action of the plate spring 21; when the arc-shaped surface on the limiting block 28 contacts the arc-shaped chamfer 34 on the fixed structure 14 during the swinging process of the swinging support 23, the arc-shaped chamfer 34 presses the limiting block 28 to enable the limiting block 28 to move towards one side of the sliding rod 4; when the arc-shaped limiting block 20 on the swing support 23 is completely contacted with the arc-shaped clamping groove 35 on the fixed structure 14, the second trigger rack 51 also just moves to be completely contacted with the corresponding second guide hole 38; and moves to the inside of the swing support 23 to be engaged with the second gear 43 by the gravity of the second connecting weight 50; at this time, the stopper 28 will gradually move into the stopper groove 33 on the fixing structure 14 under the action of the compression spring 15; the limiting rod drives the driving rod 29, the connecting block 40, the first connection 41, the trigger block 16 and the rack connecting plate 30 to gradually recover in the moving process of the limiting block 28; the rack attachment plate 30 will cause the first gear 27 to rotate during the recovery process; the first gear 27 rotates to drive the third rotating shaft 44 to rotate; the third rotating shaft 44 rotates to drive the second gear 43 to rotate; the second gear 43 rotates so that the second trigger rack 51 moves downward; the downward movement of the second trigger rack 51 drives the second connecting weight 50 to move downward; the downward movement of the second connecting weight 50 drives the first trigger rack 19 to move downward; the downward movement of the first trigger rack 19 causes the trigger gear 18 to rotate; the rotation of the trigger gear 18 can restore the trigger swinging block 17 to the original position; in the invention, when the triggering swing block 17 completely enters the inner side of the sliding rod 4 in the swinging process, the second triggering rack 51 is just completely separated from the swinging support 23; the function of the trigger rack is to prevent the second trigger rack 51 from interfering with the swing support 23 during the swing of the swing support 23. In the present invention, the diameter of the second gear 43 is half of the diameter of the first gear 27; the function of the escape box is to ensure that when the contact area of the triggering swing block 17 and the escape box 3 is small, namely when the triggering swing block 17 is small, the second gear 43 and the first gear 27 can ensure that the limiting block 28 can be completely separated from the limiting groove 33. Third gear 45, fourth gear 46 and ring gear 47 in the present invention are used to ensure that the deformation of spiral spring 25 is small during the swing of swing support 23; the spiral spring 25 is protected.

When the trigger swing block 17 is loosened in the long-time use process and the desired effect cannot be achieved, the trigger swing block 17 loses its effect at this time; however, the trigger plate 24 is designed in the invention, when the trigger swinging block 17 does not work, the escape box 3 falls downwards to be in contact with the trigger plate 24 and press the trigger plate 24 to enable the trigger plate 24 to move downwards along the first guide hole 37; the downward movement of the trigger plate 24 presses the inclined surface of the trigger block 16 to move the trigger block 16 toward the side of the slide bar 4; the trigger block 16 moves to drive the first connection 41 to move; the first connection 41 moves to drive the connection block 40 to move; the connecting block 40 moves to drive the driving rod 29 to move towards one side of the sliding rod 4; the driving rod 29 moves to drive the limiting block 28 to move; the stopper 28 moves to compress the compression spring 15; when the limiting block 28 is completely separated from the limiting groove 33 on the fixing structure 14 in the moving process of the limiting block 28, the limiting block 28 is restored to the original position under the action of the compression spring 15; meanwhile, the swing support 23 can swing downwards under the pressure of the escape box 3; during the swinging process of the swinging support 23, the swinging support 23 compresses the plate spring 21; meanwhile, the swing support 23 swings to drive the first rotating shaft 26 to rotate; the rotation of the first rotating shaft 26 drives the third gear 45 to rotate; the third gear 45 rotates to drive the three fourth gears 46 to rotate; the fourth gear 46 rotates to drive the gear ring 47 to rotate; rotation of ring gear 47 will cause scroll spring 25 to be forced up; when the swing support 23 is completely moved into the second mounting groove 11 of the slide bar 4, the escape box 3 can slide downwards through the fixing mechanism 5; when the escape box 3 is completely separated from the fixing mechanism 5, the spiral spring 25 is gradually restored; during recovery, scroll spring 25 causes ring gear 47 to rotate; the gear ring 47 rotates to drive the three fourth gears 46 to rotate; the fourth gear 46 rotates to drive the third gear 45 to rotate; the third gear 45 rotates to drive the first rotating shaft 26 to rotate; the first rotating shaft 26 rotates to drive the swinging support 23 to swing; meanwhile, the swinging support 23 also swings upwards under the action of the plate spring 21; when the arc-shaped surface on the limiting block 28 contacts the arc-shaped chamfer 34 on the fixed structure 14 during the swinging process of the swinging support 23, the arc-shaped chamfer 34 presses the limiting block 28 to enable the limiting block 28 to move towards one side of the sliding rod 4; when the arc-shaped limiting block 20 on the swing support 23 is completely contacted with the arc-shaped clamping groove 35 on the fixed structure 14, the second trigger rack 51 also just moves to be completely contacted with the corresponding second guide hole 38; and moves to the inside of the swing support 23 to be engaged with the second gear 43 by the gravity of the second connecting weight 50; at this time, the stopper 28 will gradually move into the stopper groove 33 on the fixing structure 14 under the action of the compression spring 15; the limiting rod drives the driving rod 29, the connecting block 40, the first connection 41 and the trigger block 16 to gradually recover in the moving process of the limiting block 28; and the trigger block 16 will return the trigger plate 24 to its original position as the trigger block 16 returns to the process. The function of the leaf spring 21 and the spiral spring 25 in the present invention is to ensure that when one of the two fails, the other can perform the restoring function.

In the invention, when the escape box 3 is related to one of the 5 fixing mechanisms 5, the other 4 escape boxes are not changed; the slide bar 4 is now secured by the other 4.

The specific implementation mode is as follows: when people use the escape slide bar 4 designed by the invention, when an emergency happens in a room, people enter the escape box 3 through the escape opening 8 and the U-shaped escape passage 7; then the switch of the escape box 3 is opened to enable the escape box 3 to slide down along the slide bar 4; when the escape box 3 slides downwards along the sliding rod 4 and the lower side of the escape box 3 is in contact with the triggering swing block 17, the triggering swing block 17 swings towards the direction of the sliding rod 4; the trigger swinging block 17 swings to drive the trigger gear 18 to rotate; the trigger gear 18 rotates so that the first trigger rack 19 moves upward; the first trigger rack 19 moves upwards to drive the second connecting weight 50 to move upwards; the second connecting weight 50 moves upwards to drive the second trigger rack 51 to move upwards along the second guide hole 38; the upward movement of the second trigger rack 51 causes the second gear 43 to rotate; the second gear 43 rotates to drive the third rotating shaft 44 to rotate; the third rotating shaft 44 rotates to drive the first gear 27 to rotate; the first gear 27 rotates so that the rack link plate 30 moves toward the slide bar 4 side; the rack connecting plate 30 moves to drive the trigger block 16 to move towards one side of the sliding rod 4; the trigger block 16 moves to drive the first connection 41 to move; the first connection 41 moves to drive the connection block 40 to move; the connecting block 40 moves to drive the driving rod 29 to move towards one side of the sliding rod 4; the driving rod 29 moves to drive the limiting block 28 to move; the stopper 28 moves to compress the compression spring 15; when the limiting block 28 is completely separated from the limiting groove 33 on the fixing structure 14 in the moving process of the limiting block 28, the limiting block 28 is restored to the original position under the action of the compression spring 15; meanwhile, the swing support 23 can swing downwards under the pressure of the escape box 3; during the swinging process of the swinging support 23, the swinging support 23 compresses the plate spring 21; meanwhile, the swing support 23 swings to drive the first rotating shaft 26 to rotate; the rotation of the first rotating shaft 26 drives the third gear 45 to rotate; the third gear 45 rotates to drive the three fourth gears 46 to rotate; the fourth gear 46 rotates to drive the gear ring 47 to rotate; rotation of ring gear 47 will cause scroll spring 25 to be forced up; when the swing support 23 is completely moved into the second mounting groove 11 of the slide bar 4, the escape box 3 can slide downwards through the fixing mechanism 5; finally, the utility model slides to the ground.

Claims (8)

1. The utility model provides a slide bar of fleing based on gear change which characterized in that: the escape box comprises an escape box, a slide bar, a fixing mechanism, a fixing support, a fixing plate, an escape box inlet, a U-shaped escape channel, a first mounting groove, a second mounting groove and a spring mounting groove, wherein 5 second mounting grooves are uniformly formed in the outer circumferential surface of the slide bar up and down along the axis direction; the upper sides of the 5 second mounting grooves on the slide bar are respectively provided with a first mounting groove; the side surfaces of the ends, which are positioned in the 5 second mounting grooves on the slide bar and are provided with the first mounting grooves, are respectively provided with a spring mounting groove; the upper end of the sliding rod is arranged on one side of the wall through a fixed support; a fixed plate is arranged at the lower side of the slide bar; the sliding rod is fixed with the bottom side of the wall through a fixing plate; one side of the wall close to the sliding rod is provided with an escape opening; the escape box is an annular hollow shell; the outer circle surface of the escape box is provided with an escape box inlet; the escape box is arranged on the sliding rod; a U-shaped escape channel is connected between the escape box and an escape opening formed in the wall in the initial state; one end of the U-shaped escape channel is fixedly arranged on the wall; the 5 fixing mechanisms are arranged between the sliding rod and the wall, and the 5 fixing mechanisms are respectively matched with the 5 first mounting grooves, the 5 second mounting grooves and the 5 spring mounting grooves;

the fixing mechanism comprises a fixing structure, a compression spring, a trigger block, a trigger swinging block, a trigger gear, a first trigger rack, a leaf spring, a spring fixing plate, a swinging support, a trigger plate, a volute spiral spring, a first rotating shaft, a first gear, a limiting block, a driving rod, a rack connecting plate, a trigger mounting groove, a first guide hole, a second guide hole, a rotating shaft hole, a connecting block, a first connection, a second rotating shaft, a second gear, a third rotating shaft, a second connecting weight, a second trigger rack, an arc limiting block, a first avoiding opening, a second avoiding opening, a limiting groove and an arc clamping groove, wherein one end of the first rotating shaft is arranged in a circular hole on the side surface close to one end of the first mounting groove in the corresponding second mounting groove; the other end of the first rotating shaft is positioned in the corresponding spring mounting groove; a volute spiral spring is arranged between the first rotating shaft and the corresponding spring mounting groove; the inner end of the scroll spring is arranged on the outer circular surface of the first rotating shaft; the outer end of the volute spiral spring is arranged at the bottom end of the corresponding spring mounting groove;

the fixing structure consists of a first connecting block and an arc-shaped limit; the outer arc surface of the arc limiting block is arranged at one end of the first connecting block; the other end of the first connecting block is arranged on the wall; the inner side of the arc-shaped limit is provided with an arc-shaped clamping groove; the inner side of the first connecting block is provided with a limiting groove; the limiting groove is communicated with the arc-shaped clamping groove; the lower end of one side, close to the first connecting block, in the arc-shaped clamping groove is provided with a first avoidance opening; a second avoidance opening is formed in one side, close to the arc limiting inner arc surface, in the arc clamping groove;

one end of the swing support is provided with a rotating shaft hole; a trigger mounting groove is formed in the inner part of one side of the swing support, which is not provided with the rotating shaft hole; a first guide hole and a second guide hole are formed in the upper end face of one side, close to the rotating shaft hole, in the trigger mounting groove; the second guide hole is positioned between the rotating shaft hole and the first guide hole; two arc-shaped limiting blocks are symmetrically arranged on two side surfaces of the swing support at the end which is not provided with the rotating shaft hole; the two arc-shaped limiting blocks are matched with the first guide hole and the second guide hole; the swing support is arranged on the first rotating shaft through the matching of the rotating shaft hole and the end, which is not provided with the volute spiral spring, of the corresponding first rotating shaft; a plate spring is arranged between the swing support and the second mounting groove; two arc-shaped limiting blocks on the swing support are matched with arc-shaped clamping grooves in the fixed structure; the swing support is matched with the corresponding second mounting groove;

a circular through hole is formed in the center of the spring fixing plate; the spring fixing plate is arranged in the trigger mounting groove on the swing support; one end of the limiting block is provided with an arc-shaped surface; one end of the limiting block, which is not provided with the arc-shaped surface, is arranged in the trigger installation groove of the swing support and is close to the arc-shaped limiting block arranged on the swing support; the limiting block is matched with a limiting groove in the fixing structure; a compression spring is arranged between one end of the limiting block positioned in the trigger mounting groove and the spring fixing plate; one end of the driving rod penetrates through a circular through hole in the spring fixing plate and is installed on the limiting block and located in the trigger installation groove; the connecting square block is arranged at the other end of the driving rod and matched with the trigger mounting groove; one end of the first connection is arranged on the end face of the connecting block far away from one side of the driving rod; the trigger block is provided with an inclined plane; one end of the trigger block is arranged at the other end of the first connection; the inclined plane on the trigger block faces the connecting square block; the trigger plate is arranged on the swing support through a first guide hole; one end of the trigger plate, which is positioned at the inner side of the swing support, is matched with the inclined plane on the trigger block; the rack connecting plate is arranged on one side of the other end of the trigger block; two ends of the third rotating shaft are respectively arranged on two end surfaces of one side, close to the rotating shaft hole, in the trigger mounting groove; the first gear is arranged at one end of the third rotating shaft; the first gear is meshed with the rack connecting plate; the second gear is arranged at the other end of the third rotating shaft; the second trigger rack is arranged on the swing support through a second guide hole; one end of the second trigger rack positioned at the inner side of the swing support is meshed with the second gear; the second connecting weight is arranged on the upper side of the second trigger rack and positioned on the outer side of the swinging support; one end of the first trigger rack is connected with the second connecting weight block; the other end of the first trigger rack is positioned in the corresponding first mounting groove; two ends of the second rotating shaft are respectively arranged on two side surfaces of the first mounting groove; the trigger gear is arranged on the second rotating shaft; the trigger gear is meshed with the first trigger rack; one end of the trigger swinging block is arranged on the outer circular surface of the trigger gear; the other end of the trigger swing block is positioned at the outer side of the sliding rod;

the diameter of the second gear is half of that of the first gear;

the triggering swing block is matched with the escape box; the trigger plate is matched with the escape box.

2. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: the lower end face of the limiting groove in the fixing structure is provided with an arc-shaped chamfer at the joint with the arc-shaped clamping groove.

3. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: the side surfaces of the 5 spring mounting grooves are provided with trapezoidal ring guide grooves; the third gear is arranged at one end of the first rotating shaft, which is positioned in the spring mounting groove; one end of each of the three fourth rotating shafts is respectively installed in the corresponding spring installation groove, and the three fourth rotating shafts are uniformly distributed around the circumference of the third gear; the three fourth gears are respectively arranged on the three fourth rotating shafts; the three fourth gears are respectively meshed with the third gears; one end of the gear ring is provided with a trapezoidal ring guide block; the gear ring is arranged in the corresponding spring mounting groove through the matching of the ladder-shaped ring guide block and the corresponding ladder-shaped ring guide groove; the gear rings are respectively meshed with the three fourth gears; a volute spiral spring is arranged between the gear ring and the corresponding spring mounting groove; the inner end of the volute spiral spring is arranged on the outer circular surface of the gear ring; the outer end of the spiral spring is arranged at the bottom end of the corresponding spring mounting groove.

4. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: an alternative to installing the plate spring between the swing support and the second mounting groove is to install an arc-shaped compression spring between the swing support and the second mounting groove.

5. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: the matched end of the trigger plate and the escape box is just right positioned at the lower end of the escape box and the corresponding side of the escape box.

6. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: when the triggering swing block completely enters the inner side of the sliding rod in the swinging process, the second triggering rack is just separated from the swinging support completely.

7. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: the swing support and the first rotating shaft are installed through a bearing.

8. The escape sliding bar based on gear shifting as claimed in claim 1, wherein: one side of the lower end of the second trigger rack, which is far away from the second gear, is provided with an arc-shaped surface.

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