CN112850514B

CN112850514B - Multi-adjusting-mode crane capable of realizing stable feeding

Info

Publication number: CN112850514B
Application number: CN202110121262.3A
Authority: CN
Inventors: 王娟娟
Original assignee: Henan Zhimeng Technology Co ltd
Current assignee: Jiangsu Sujian Road & Bridge Machine Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2023-03-31
Anticipated expiration: 2041-01-28
Also published as: CN112850514A

Abstract

The invention relates to the technical field of cranes and discloses a multi-adjustment-mode crane capable of stably feeding, which comprises a bottom plate, wherein a fixed plate is welded on the upper surface of the bottom plate, a hoisting motor is fixedly installed on the surface of the fixed plate, a cable roller is fixedly connected with the output end of the hoisting motor, a fixed column is rotatably connected on the upper surface of the bottom plate, a stabilizing mechanism is arranged on the surface of the fixed column, an adjusting mechanism is arranged at the top of the fixed column, a moving mechanism is arranged at the bottom of the bottom plate, and a wire pulling mechanism is arranged inside the fixed plate. This hoist of stable material loading of many regulative modes, through the rotation of cable roller, so when hoisting the goods for the secondary line is always pulling the lifting hook downwards, is guaranteeing the stability of lifting hook, avoids appearing the condition of rocking, and the secondary line is always in taut straight state with the lifting hook, improves at the operation in-process, the stability of hoist crane hoist and mount goods.

Description

Multi-adjusting-mode crane capable of realizing stable feeding

Technical Field

The invention relates to the technical field of cranes, in particular to a crane with multiple adjusting modes and stable feeding.

Background

The crane is needed in the fields of industrial production and processing and the like, and the crane is mainly used for completing displacement of heavy objects. It can reduce labor intensity and improve labor productivity. Hoisting machinery is an indispensable component of modern production, and some hoisting machinery can also carry out certain special technological operation in the production process.

And at present many cranes length and highly can't carry out effectual adjustment as required when using, the limitation that leads to the crane to use is bigger, the in-process that lifts by crane to the object simultaneously can produce easily and rock, the whole security of equipment has been reduced, and still lead to unhooking to lead to dropping of goods at the in-process of rocking easily, the damage goods, and current hoisting equipment is inconvenient to be removed, also there is the unstable condition of base in the course of the work, so the stable hoist of material loading that proposes a many regulation modes solves the above-mentioned problem that provides.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a multi-adjustment-mode crane capable of stably feeding, and solves the problems that the length and the height of a traditional crane cannot be adjusted, and cargoes are easy to shake when being hoisted.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hoist of stable material loading of many regulative modes, includes the bottom plate, the last skin weld of bottom plate has the fixed plate, the fixed surface of fixed plate installs hoisting motor, hoisting motor's output fixedly connected with cable roller, the upper surface of bottom plate rotates and is connected with the fixed column, the surface of fixed column is provided with stabilizing mean, the top of fixed column is provided with adjustment mechanism, adjustment mechanism's surface is provided with pulley one, the bottom of bottom plate is provided with moving mechanism, the inside of fixed plate is provided with wire drawing mechanism.

Preferably, the surface swing joint of pulley one has the lifting rope, the one end winding of lifting rope is on the surface of cable roller, the other end fixedly connected with lifting hook of lifting rope, the fixed surface of lifting hook is connected with rings, the last fixed surface of bottom plate installs the connecting seat, the surface rotation of connecting seat is connected with pulley two, the surface swing joint of pulley two has vice rope, the top fixed connection of vice rope is on the surface of lifting hook, vice line hole has been seted up to the inside of fixed column.

Preferably, the adjusting mechanism comprises a support, the bottom of the support is fixedly connected to the top of the fixed column, a rotating seat is rotatably connected to the inside of the support, a pulley III is rotatably connected to the surface of the rotating seat, a double screw is connected to the internal thread of the rotating seat, a hanging seat is connected to the surface of the double screw in a threaded manner, a pulley I is rotatably connected to the inside of the hanging seat, two limiting rods are fixedly connected to the bottom of the hanging seat, and the bottoms of the limiting rods are slidably connected to the inside of the rotating seat.

Preferably, the inside of rotating the seat rotates and is connected with the bracing piece, the bottom fixedly connected with kelly of bracing piece, four draw-in grooves have been seted up to the upper surface of support.

Preferably, the stabilizing mechanism comprises a rotating sleeve, the inner part of the rotating sleeve is rotatably connected to the surface of the fixed column, the surface of the rotating sleeve is rotatably connected with a rotating frame, the inner part of the rotating frame is rotatably connected with a supporting frame, a pull rope is slidably connected to the inner part of the supporting frame, one end of the pull rope is fixedly connected to the surface of the hanging ring, the other end of the pull rope is fixedly connected with a rigid spring, the top end of the rigid spring is fixedly connected to the upper surface of the fixed plate, and the surface of the rotating frame is rotatably connected with a small pulley.

Preferably, the moving mechanism comprises a rotating disc, a connecting support is fixedly connected to the bottom of the rotating disc, the upper surface of the rotating disc is rotatably connected to the lower surface of the bottom plate, a bottom support is rotatably connected to the surface of the connecting support, a moving ball is movably connected to the front portion of the bottom support, a supporting block is welded to the upper surface of the bottom support, and the upper surface of the supporting block is in contact with the lower surface of the bottom plate.

Preferably, the bottom of the rotating disc is fixedly connected with an expansion spring, the bottom of the expansion spring is fixedly connected to the upper surface of the bottom bracket, and the bottom of the bottom bracket is fixedly connected with a rubber pad.

Preferably, the wire drawing mechanism is including the clamp plate, the surface rotation of clamp plate is connected on the surface of fixed plate, the fixed surface of clamp plate is connected with the traveller, the sliding surface of traveller is connected with the slider, the fixed surface of slider is connected with the pivot, the sliding surface of pivot is connected in the inside of fixed plate, the fixed surface of pivot is connected with spacing slider, spacing slider's sliding surface is connected on the surface of fixed plate, the inside rotation of fixed plate is connected with the secondary line roller, the equal fixedly connected with fixed gear of front end of secondary line roller and cable roller, the surface meshing of fixed gear has loose gear, the front end at the pivot is connected in the rotation of axle center department of loose gear.

Preferably, the upper surface of the sliding block is fixedly connected with a jacking spring, the top of the jacking spring is fixedly connected to the surface of the fixing plate, the surface of the sliding block is provided with a sliding groove, and the surface of the sliding column is slidably connected to the inner wall of the sliding groove.

Compared with the prior art, the invention provides a multi-adjustment-mode crane capable of stably feeding materials, which has the following beneficial effects:

1. through the rotation of cable roller, the meshing effect through loose gear will drive the subline roller and rotate, so when the hoist goods, and the subline roller rotates and is carrying out the unwrapping wire for the subline is pulling the lifting hook downwards always, is guaranteeing the stability of lifting hook, avoids appearing the condition of rocking, and the subline is in taut straight state with the lifting hook always, improves the stability at operation in-process, hoist and mount goods.

2. Through rotating the twin-screw, through the reason of two-way screw thread for the interval of rotating seat and hanging seat carries out effectual regulation, thereby controls the hoist and mount length of whole hoist, makes holistic hoist can carry out effectual adjustment to length, comes the convenience to hoist and mount different distant goods.

3. Through the rotation that the seat was rotated in the direct control for the kelly card is in the position of different draw-in grooves, makes the fixed angle of rotation seat carry out different changes, and then controls the height of whole pulley one, thereby realizes carrying out effectual adjustment, unusual convenient and fast to the height of lifting by crane of goods.

4. Through the both sides fixedly connected with stay cord of lifting hook, when the goods is at the in-process of hoist and mount, the stay cord of both sides receives the effect of rigid spring will play the supplementary stable effect to the both sides of lifting hook, further assurance the hoist and mount stability of goods, reduce rocking of goods, improve the security of operation and goods.

5. Receive the action of gravity through four expanding spring and strut or compress tightly, will control the rotation of bottom bracket, will strut four bottom bracket for arch or the state of tiling, be convenient for remove when no heavy object, make things convenient for equipment to carry out work in different regions, when having the heavy object, tile, guarantee the holistic stability of equipment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a multi-adjustment stable-loading crane provided by the invention;

FIG. 2 is a schematic connecting diagram of a fixing column of a multi-adjustment-mode stably-feeding crane provided by the invention;

FIG. 3 is a schematic diagram of an adjusting mechanism of a multi-adjusting mode stable feeding crane according to the present invention;

FIG. 4 is a schematic view of a stabilizing mechanism of a multi-adjustment stable-loading crane according to the present invention;

FIG. 5 is a schematic diagram of a moving mechanism of a multi-adjustment stable-loading crane provided by the invention;

FIG. 6 is a schematic view of a wire pulling mechanism of a multi-adjustment stable-loading crane provided by the invention;

FIG. 7 is a schematic view of the connection of the movable gear of the multi-adjustment stable-loading crane according to the present invention;

fig. 8 is a fixed gear engagement diagram of a multi-adjustment stable-loading crane according to the present invention.

In the figure: 1. a base plate; 2. a fixing plate; 3. a hoisting motor; 4. a first pulley; 5. fixing a column; 6. an adjustment mechanism; 601. a support; 602. a rotating seat; 603. a third pulley; 604. a support bar; 605. a clamping rod; 606. a card slot; 607. double screw; 608. a hanging seat; 609. a limiting rod; 7. a stabilizing mechanism; 701. rotating the sleeve; 702. a rotating frame; 703. a small pulley; 704. a support frame; 705. pulling a rope; 706. a rigid spring; 8. a moving mechanism; 81. rotating the disc; 82. a bottom bracket; 83. connecting a support; 84. a tension spring; 85. a support block; 86. moving the ball; 87. a rubber pad; 9. a cable roll; 10. a connecting seat; 11. a second pulley; 12. a hook; 13. a hoisting ring; 14. a secondary wire hole; 15. a wire pulling mechanism; 151. pressing a plate; 152. a slider; 153. the spring is tightly propped; 154. a traveler; 155. a movable gear; 156. a secondary wire roller; 157. a limiting slide block; 158. a rotating shaft; 159. fixing a gear; 16. a lifting rope; 17. and (7) a secondary rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the multi-adjustment stable-loading crane comprises a base plate 1, a fixing plate 2 is welded on the upper surface of the base plate 1, a lifting motor 3 is fixedly mounted on the surface of the fixing plate 2, a cable roller 9 is fixedly connected to the output end of the lifting motor 3, a fixing column 5 is rotatably connected to the upper surface of the base plate 1, a stabilizing mechanism 7 is arranged on the surface of the fixing column 5, an adjusting mechanism 6 is arranged at the top of the fixing column 5, a pulley I4 is arranged on the surface of the adjusting mechanism 6, a moving mechanism 8 is arranged at the bottom of the base plate 1, and a wire pulling mechanism 15 is arranged inside the fixing plate 2.

In this embodiment, a lifting rope 16 is movably connected to the surface of the first pulley 4, one end of the lifting rope 16 is wound on the surface of the cable roller 9, a lifting hook 12 is fixedly connected to the other end of the lifting rope 16, a lifting ring 13 is fixedly connected to the surface of the lifting hook 12, a connecting seat 10 is fixedly mounted on the upper surface of the bottom plate 1, a second pulley 11 is rotatably connected to the surface of the connecting seat 10, an auxiliary rope 17 is movably connected to the surface of the second pulley 11, the top end of the auxiliary rope 17 is fixedly connected to the surface of the lifting hook 12, an auxiliary line hole 14 is formed in the fixing column 5, and under the action of a plurality of pulleys, the friction force of the lifting rope 16 is reduced, so that the service power of the hoisting motor 3 is reduced, the whole lifting hook 12 is fixed by the downward tension of the auxiliary rope 17, the stability of a hanging object of the lifting hook 12 is ensured, the auxiliary line hole 14 is a passage for providing the auxiliary rope 17, the centering performance of the auxiliary rope 17 is ensured, and the condition that the auxiliary rope 17 is too large angular deviation and is broken away is avoided.

Further, adjustment mechanism 6 is including support 601, the bottom fixed connection of support 601 is at the top of fixed column 5, the inside of support 601 rotates and is connected with and rotates seat 602, the surface that rotates seat 602 rotates and is connected with pulley three 603, the internal thread that rotates seat 602 is connected with twin-screw 607, the surface threaded connection of twin-screw 607 hangs seat 608, the inside at hanging seat 608 is connected in the surface rotation of pulley one 4, hang two gag lever posts 609 of bottom fixed connection of seat 608, the bottom sliding connection of gag lever post 609 is in the inside of rotating seat 602, through rotating twin-screw 607, through the reason of two-way screw thread, make the interval that rotates seat 602 and hanging seat 608 carry out effectual regulation, thereby control the hoist and mount length of whole hoist, make holistic hoist can carry out effectual adjustment to length, conveniently hoist different distant goods.

Further, the inside rotation that rotates seat 602 is connected with bracing piece 604, and the bottom fixedly connected with kelly 605 of bracing piece 604, four draw-in grooves 606 have been seted up to the upper surface of support 601, rotates the rotation of seat 602 through the control for kelly 605 card is in the position of different draw-in grooves 606, adjusts whole pulley 4's height, thereby realizes highly carrying out effectual adjustment, unusual convenient and fast to the height of hoisting of goods.

In addition, the stabilizing mechanism 7 comprises a rotating sleeve 701, the inner part of the rotating sleeve 701 is rotatably connected to the surface of the fixed column 5, the surface of the rotating sleeve 701 is rotatably connected with a rotating frame 702, the inner part of the rotating frame 702 is rotatably connected with a supporting frame 704, the inner part of the supporting frame 704 is slidably connected with a pulling rope 705, one end of the pulling rope 705 is fixedly connected to the surface of the hanging ring 13, the other end of the pulling rope 705 is fixedly connected with a rigid spring 706, the top end of the rigid spring 706 is fixedly connected to the upper surface of the fixed plate 2, the surface of the rotating frame 702 is rotatably connected with a small pulley 703, and the pulling rope 705 is fixedly connected to the two sides of the hanging hook 12.

Referring to fig. 7-8, the moving mechanism 8 includes a rotating disc 81, a connecting support 83 is fixedly connected to the bottom of the rotating disc 81, the upper surface of the rotating disc 81 is rotatably connected to the lower surface of the bottom plate 1, a bottom bracket 82 is rotatably connected to the surface of the connecting support 83, a moving ball 86 is movably connected to the front portion of the bottom bracket 82, a support block 85 is welded to the upper surface of the bottom bracket 82, the upper surface of the support block 85 is in contact with the lower surface of the bottom plate 1, and the rotation of the bottom bracket 82 is controlled through the opening action of the four expansion springs 84 when there is no heavy object to open the four bottom brackets 82 into an arched state, at this time, the four moving balls 86 contact with the ground to slide on the ground, at this time, the whole device is pushed to move, and thus the device can work in different areas.

In this embodiment, the bottom fixedly connected with expanding spring 84 of rolling disc 81, expanding spring 84's bottom fixed connection is at the upper surface of end support 82, end support 82's bottom fixedly connected with rubber pad 87, receive gravity after through the hoist and mount and will press on four end support 82, flatten end support 82, supporting shoe 85 and bottom plate 1's lower surface contact, carry out the load, rubber pad 87 will contact with ground, form the state of tiling, guarantee the whole holding area of equipment, guarantee the holistic stability of equipment.

Further, the wire pulling mechanism 15 includes a pressing plate 151, a surface of the pressing plate 151 is rotatably connected to a surface of the fixed plate 2, a surface of the pressing plate 151 is fixedly connected with a sliding column 154, a surface of the sliding column 154 is slidably connected with a sliding block 152, a surface of the sliding block 152 is fixedly connected with a rotating shaft 158, a surface of the rotating shaft 158 is slidably connected to an inside of the fixed plate 2, a surface of the sliding block 157 is fixedly connected with a limiting sliding block 157, a surface of the limiting sliding block 157 is slidably connected to a surface of the fixed plate 2, an inside of the fixed plate 2 is rotatably connected with a secondary wire roller 156, front ends of the secondary wire roller 156 and the cable roller 9 are both fixedly connected with a fixed gear 159, a surface of the fixed gear 159 is engaged with a movable gear 155, an axial center of the movable gear 155 is rotatably connected to a front end of the rotating shaft 158, during adjustment of the hoisting height and hoisting length, the secondary rope 17 is pulled towards the hook 12 all the time, and the pressing of the pressing plate 151 drives the movable gear 155 to rise through a lever principle, so that the movable gear 155 and two fixed gears 159 are disengaged to provide a position, so that the secondary rope 17 can be lengthened stably during adjustment.

Furthermore, the upper surface of the sliding block 152 is fixedly connected with a jacking spring 153, the top of the jacking spring 153 is fixedly connected to the surface of the fixing plate 2, the sliding groove is formed in the surface of the sliding block 152, the surface of the sliding column 154 is slidably connected to the inner wall of the sliding groove, downward thrust is provided to press the sliding block 152 downwards under the action of the jacking spring 153, the movable gear 155 is pressed downwards to be automatically meshed with the two fixed gears 159, the cable roller 9 and the auxiliary wire roller 156 are enabled to synchronously rotate relatively, the auxiliary rope 17 is ensured to be in a always tightened state, and the hoisting stability of the device is improved.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The working principle is that firstly, the rotation of the hoisting motor 3 drives the rotation of the cable roller 9, the rotation of the cable roller 9 drives the lifting rope 16 to lift or fall, the friction force of the lifting rope 16 is reduced through the action of the two pulleys, so that the use power of the hoisting motor 3 is reduced, the lifting rope 16 can directly drive the lifting hook 12 to rise and fall to realize the lifting of the goods, in the lifting process, the rotation of the cable roller 9 can drive the auxiliary wire roller 156 to rotate through the meshing action of the movable gear 155, so that when the goods are lifted, the auxiliary wire roller 156 rotates to pay off, so that the auxiliary rope 17 always pulls the lifting hook 12 downwards to ensure the stability of the lifting hook 12 and avoid the shaking condition, and in the goods falling process, the auxiliary wire roller 156 can take up the wires to ensure that the auxiliary rope 17 and the lifting hook 12 are always in a tensioned and stretched state, the stability of hoisting goods by the crane is improved in the operation process, meanwhile, in order to avoid the left and right shaking of goods, the two sides of the lifting hook 12 are fixedly connected with the pull ropes 705, when the goods are hoisted, the pull ropes 705 at the two sides are acted by the rigid spring 706 to play a role in assisting and stabilizing the two sides of the lifting hook 12, when the goods are hoisted or landed, the support frame 704 drives the rotating frame 702 to rotate on the surface of the rotating sleeve 701, the hoisting stability of the goods is further ensured, the shaking of the goods is reduced, the safety of the operation and the goods is improved, when the height of the goods or the height and the length of the hoisted goods are insufficient, the double screws 607 can be rotated, the distance between the rotating seat 602 and the hoisting seat 608 is effectively adjusted due to the two-way threads, and the hoisting length of the whole crane is controlled, the height adjustment directly controls the rotation of the rotating base 602, so that the clamping rod 605 is clamped at different positions of the clamping grooves 606 to adjust the height of the whole pulley I4, thereby realizing the effective adjustment of the hoisting height of the goods, being very convenient and fast, and in the adjusting process, because the auxiliary rope 17 pulls the hook 12 all the time, the pressing plate 151 can be controlled to press down, through the lever principle, the sliding column 154 rises to drive the sliding block 152 to rise, and further the movable gear 155 is driven to rise, so that the movable gear 155 and the two fixed gears 159 are disengaged, at this time, when the hoisting height of the crane is adjusted, the auxiliary rope 17 is also lengthened, the secondary wire roller 156 is rotated on the fixing plate 2 in a relatively compact manner, and when the height is lowered, the rotation of the secondary wire roller 156 needs to be manually controlled to keep the secondary rope 17 and the hook 12 taut, when the whole device does not hoist the goods, the traditional equipment is inconvenient to integrally move, when the device does not hoist the goods, the gravity is low, the rotation of the bottom brackets 82 is controlled under the strutting action of the four extension springs 84 at the moment, so that the four bottom brackets 82 are propped to be in an arched state, the four moving balls 86 are contacted with the ground to slide with the ground, the whole equipment is pushed to move at the moment, thereby facilitating the work of the equipment in different areas, and when the whole device is lifted and bears certain gravity, gravity will press on four bottom brackets 82, flatten bottom bracket 82, and the lower surface contact of supporting shoe 85 and bottom plate 1 carries out the bearing, and rubber pad 87 will contact with ground, forms the tiling state, guarantees the whole supported area of equipment, guarantees the holistic stability of equipment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a hoist of stable material loading of many regulative modes, includes bottom plate (1), its characterized in that: the cable-pulling mechanism is characterized in that a fixed plate (2) is welded on the upper surface of the bottom plate (1), a hoisting motor (3) is fixedly mounted on the surface of the fixed plate (2), a cable roller (9) is fixedly connected to the output end of the hoisting motor (3), a fixed column (5) is rotatably connected to the upper surface of the bottom plate (1), a stabilizing mechanism (7) is arranged on the surface of the fixed column (5), an adjusting mechanism (6) is arranged at the top of the fixed column (5), a pulley I (4) is arranged on the surface of the adjusting mechanism (6), a moving mechanism (8) is arranged at the bottom of the bottom plate (1), and a cable-pulling mechanism (15) is arranged inside the fixed plate (2);

the surface of the pulley I (4) is movably connected with a lifting rope (16), one end of the lifting rope (16) is wound on the surface of the cable roller (9), the other end of the lifting rope (16) is fixedly connected with a lifting hook (12), the surface of the lifting hook (12) is fixedly connected with a lifting ring (13), the upper surface of the bottom plate (1) is fixedly provided with a connecting seat (10), the surface of the connecting seat (10) is rotatably connected with a pulley II (11), the surface of the pulley II (11) is movably connected with an auxiliary rope (17), the top end of the auxiliary rope (17) is fixedly connected to the surface of the lifting hook (12), and an auxiliary wire hole (14) is formed in the fixing column (5);

the adjusting mechanism (6) comprises a support (601), the bottom of the support (601) is fixedly connected to the top of a fixed column (5), a rotating seat (602) is rotatably connected to the inside of the support (601), a pulley III (603) is rotatably connected to the surface of the rotating seat (602), a double screw (607) is in threaded connection with the inside of the rotating seat (602), a hanging seat (608) is in threaded connection with the surface of the double screw (607), the surface of the pulley I (4) is rotatably connected to the inside of the hanging seat (608), two limiting rods (609) are fixedly connected to the bottom of the hanging seat (608), and the bottom of the limiting rods (609) is slidably connected to the inside of the rotating seat (602);

a support rod (604) is rotatably connected inside the rotating seat (602), a clamping rod (605) is fixedly connected to the bottom of the support rod (604), and four clamping grooves (606) are formed in the upper surface of the support seat (601);

the stabilizing mechanism (7) comprises a rotating sleeve (701), the interior of the rotating sleeve (701) is rotatably connected to the surface of a fixed column (5), the surface of the rotating sleeve (701) is rotatably connected with a rotating frame (702), the interior of the rotating frame (702) is rotatably connected with a supporting frame (704), the interior of the supporting frame (704) is slidably connected with a pull rope (705), one end of the pull rope (705) is fixedly connected to the surface of a hanging ring (13), the other end of the pull rope (705) is fixedly connected with a rigid spring (706), the top end of the rigid spring (706) is fixedly connected to the upper surface of a fixed plate (2), and the surface of the rotating frame (702) is rotatably connected with a small pulley (703);

the moving mechanism (8) comprises a rotating disc (81), the bottom of the rotating disc (81) is fixedly connected with a connecting support (83), the upper surface of the rotating disc (81) is rotatably connected to the lower surface of the bottom plate (1), the surface of the connecting support (83) is rotatably connected with a bottom bracket (82), the front part of the bottom bracket (82) is movably connected with a moving ball (86), a supporting block (85) is welded on the upper surface of the bottom bracket (82), and the upper surface of the supporting block (85) is in contact with the lower surface of the bottom plate (1);

the bottom of the rotating disc (81) is fixedly connected with an expansion spring (84), the bottom of the expansion spring (84) is fixedly connected to the upper surface of the bottom bracket (82), and the bottom of the bottom bracket (82) is fixedly connected with a rubber pad (87);

the wire drawing mechanism (15) comprises a pressing plate (151), the surface of the pressing plate (151) is rotatably connected to the surface of a fixing plate (2), a sliding column (154) is fixedly connected to the surface of the pressing plate (151), a sliding block (152) is slidably connected to the surface of the sliding column (154), a rotating shaft (158) is fixedly connected to the surface of the sliding block (152), the surface of the rotating shaft (158) is slidably connected to the inside of the fixing plate (2), a limiting sliding block (157) is fixedly connected to the surface of the rotating shaft (158), the surface of the limiting sliding block (157) is slidably connected to the surface of the fixing plate (2), an auxiliary wire roller (156) is rotatably connected to the inside of the fixing plate (2), fixed gears (159) are fixedly connected to the front ends of the auxiliary wire roller (156) and the cable roller (9), movable gears (155) are meshed to the surface of the fixed gears (159), and the axis of the movable gears (155) is rotatably connected to the front ends of the rotating shaft (158);

the upper surface fixed connection of slider (152) has top tight spring (153), the top fixed connection of top tight spring (153) is on the surface of fixed plate (2), the spout has been seted up on the surface of slider (152), the surperficial sliding connection of traveller (154) is at the inner wall of spout.