CN210622482U - Cat eye prevention mechanism, door handle and door - Google Patents

Abstract

The utility model provides a cat eye prevention mechanism, a door handle and a door, which comprises a handle main body, wherein the main body comprises a handle shaft, a shaft hole is arranged on the handle shaft, a limiting part is arranged in the shaft hole, a positioning pin shaft is arranged at one side of the limiting part, a button is elastically arranged at the other side of the limiting part, and a fitting structure is arranged between the button and the handle shaft as well as the positioning pin shaft; the positioning pin shaft is elastically connected with a transmission shaft in the axial direction, and the positioning pin shaft and the transmission shaft are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft and the transmission shaft. The utility model discloses reduced the handle at the structure demand in Z to space, not occuping handle periphery space, the space of solving interior panel handle is little, the spare part is many, is difficult to the problem of global design.

Description

Cat eye prevention mechanism, door handle and door

Technical Field

The utility model belongs to the technical field of the tool to lock, especially, relate to a prevent cat eye mechanism, door handle and door.

Background

At present, most door locks are provided with cat eyes, and the cat eye is a small-sized optical instrument, because light rays are refracted through the cat eyes, the flash light of the cat eyes is seen at a distance and is similar to light rays emitted by the cat eyes at night, and people can see the outside space through the cat eyes in a room conveniently. For example, when someone makes your visit, we need to know whether the outside people are what we know, which can ensure our security.

Although the anti-peephole mechanism of the electronic lock in the market basically adopts the anti-peephole small rotating disc and the anti-peephole reset torsion spring. Before the cat eye prevention button is not pressed, the cat eye prevention button is separated from the cat eye prevention turntable, and no mechanical relation occurs; after the cat eye prevention button is pressed, the cat eye prevention button is matched with the cat eye prevention rotary disc, and the button drives the cat eye prevention rotary disc to rotate so as to realize the rotation of square steel. The cat eye small turntable is usually designed at the upper end of a handle driving disc, a torsion spring positioning structural part is also designed at the upper end of the cat eye small turntable, the cat eye small turntable has higher requirements on the Z-direction height of a product, and occupies the space outside a handle shaft, so that the space of an inner panel handle is small, and the integral design of more parts is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent cat eye mechanism, door handle and door aims at solving traditional handle and prevents that cat eye mechanism occupies big problem to the space at Z.

The utility model is realized in such a way, a cat eye prevention mechanism is provided, which comprises a handle main body, wherein the main body comprises a handle shaft, a shaft hole is arranged on the handle shaft, a limiting part is arranged in the shaft hole, a positioning pin shaft is arranged at one side of the limiting part, a button is elastically arranged at the other side of the limiting part, and a fitting structure is arranged between the button and the handle shaft as well as between the button and the positioning pin shaft;

the positioning pin shaft is elastically connected with a transmission shaft in the axial direction, and the positioning pin shaft and the transmission shaft are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft and the transmission shaft.

Furthermore, the positioning pin shaft is provided with a first spiral surface and a first radial limiting surface arranged at the tail end of the first spiral surface, the limiting part is provided with a second spiral surface and a second radial limiting surface arranged at the tail end of the second spiral surface, and the second spiral surface and the second radial limiting surface are respectively matched with the first spiral surface and the first radial limiting surface.

Furthermore, the locating pin is provided with an axial connecting hole, the transmission shaft is arranged in the connecting hole, and the limiting structure comprises: the positioning pin shaft is arranged on the transmission shaft, the connecting hole is formed in the transmission shaft, the third limiting surface is arranged in the connecting hole, the fourth limiting surface is arranged on the periphery of the transmission shaft, and when the positioning pin shaft rotates, the transmission shaft rotates along with the positioning pin shaft through the cooperation of the third limiting surface and the fourth limiting surface.

Furthermore, the connecting hole comprises four third limiting surfaces to form a square hole structure, and four fourth limiting surfaces are correspondingly arranged on the periphery of the transmission shaft to form a square shaft structure.

Furthermore, a first spring is arranged in a connecting hole of the positioning pin shaft, and the transmission shaft is elastically connected in the connecting hole through the first spring.

Furthermore, the matching structure between the handle shaft and the button is as follows: set up square hole and setting in spacing portion are in the terminal square pole of button, when the button is pressed square pole passes square hole.

Furthermore, the matching structure between the handle shaft and the positioning pin shaft is as follows: the button is arranged at the tail end of the square rod and the square groove formed in the end part of the positioning pin shaft, and the square rod is pressed into the square groove when the button is pressed.

Further, the button is elastically coupled in the handle shaft by a second spring.

Still further, the handle body further includes: the handle is arranged on the handle shaft, the handle cover is arranged to be matched with the handle, and the handle cover is provided with an avoiding position at one end of the button.

Furthermore, the number of the first spiral surface and the number of the first radial limiting surfaces are multiple, and the number of the second spiral surface and the number of the second radial limiting surfaces correspond to the number of the first spiral surface and the number of the first radial limiting surfaces.

The utility model also provides a door handle, include prevent cat eye mechanism.

The utility model also provides a door, including foretell door handle.

The utility model discloses the beneficial effect who reaches, because the locating pin epaxial with spacing portion cooperatees and sets up, the transmission shaft with be equipped with a limit structure who is used for restricting their rotation each other between the locating pin axle, and because press-button and handle axle and locating pin are connected through agreeing with the structure between the round pin axle, when the button is pressed, form the linkage between button and handle axle and the locating pin axle, therefore when rotating the handle axle, can drive the button rotation, the button drives the locating pin axle simultaneously and rotates, if not press the button, the unable button of drive of handle rotation process and the round pin axle rotation, thereby realize preventing cat eye's function, the utility model discloses the button is because set up and locating pin axle and handle axle are connected through agreeing with the mode in the shaft hole, for the axial connection in axle and hole to reduced the structural requirement of handle in Z direction space, do not occupy handle periphery space, solve the little space of inner panel handle, The number of parts is large, and the integral design is difficult.

Drawings

Fig. 1 is a schematic view of an explosion structure of the cat-eye prevention mechanism provided by the present invention;

fig. 2 is a cross-sectional view of the cat-eye prevention mechanism provided by the present invention;

FIG. 3 is a schematic view of the main structure of the handle provided by the present invention;

fig. 4 is a schematic view of the whole structure of the positioning shaft pin provided by the present invention;

fig. 5 is a schematic view of a through hole structure of the positioning shaft pin provided by the present invention;

fig. 6 is a schematic structural view of a spiral surface of a shaft pin provided by the present invention;

fig. 7 is a sectional view of the positioning pin provided by the present invention.

In figure 1, a handle shaft; 2. a handle main body; 3. a handle cover; 4. a button; 5. positioning a pin shaft; 6. a drive shaft; 7. a square hole; 8. a first helicoid; 9. a first radial limiting surface; 10. a second helicoid; 11. A partition layer; 12. a square groove; 13. a second radial limiting surface; 14. a first spring; 15. a square rod; 16. A circular groove; 17. a circular ring part; 18. square steel; 19. a second spring; 20. a counter bore; 21. a screw hole; 22. A screw; 23. avoidance positions; 24. an arc-shaped surface; 26. a limiting part; 27. a shaft hole; 29. a third limiting surface; 30. connecting holes; 32. a handle; 33. and a fourth limiting surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses a locating pin epaxial with spacing portion cooperatees and sets up, the transmission shaft with be equipped with one between the locating pin axle and be used for restricting their looks mutual pivoted limit structure, and because be connected through agreeing with the structure between button and handle axle and the locating pin axle, when the button is pressed, form the linkage between button and handle axle and the locating pin axle, therefore when rotating the handle axle, can drive the button rotatory, it is rotatory that the button drives the locating pin axle simultaneously, if not pressing the button, then the unable button and the locating pin axle of driving of handle rotation process are rotatory to the realization prevents cat eye's function. The utility model discloses the button is connected through agreeing with the mode with locating pin axle and handle axle owing to set up in the shaft hole, is connected for the axial in axle and hole to reduced the handle in the structure demand in Z to the space, not occuping handle periphery space, the space of solving interior panel handle is little, the spare part is many, is difficult to the problem of global design.

Example one

With reference to fig. 1-7, the utility model provides a cat eye prevention mechanism, which comprises a handle main body 2, wherein the main body comprises a handle shaft 1, a shaft hole 27 is arranged on the handle shaft 1, a limiting part 26 is arranged in the shaft hole 27, a positioning pin shaft 5 is arranged on one side of the limiting part 26, a button 4 is elastically arranged on the other side of the limiting part 26, and a fitting structure is arranged between the button 4 and the handle shaft 1 as well as between the button 4 and the positioning pin shaft 5; the positioning pin shaft 5 is elastically connected with a transmission shaft 6 in the axial direction, and the positioning pin shaft 5 and the transmission shaft 6 are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft 5 and the transmission shaft.

Further, the transmission shaft 6 is made of square steel 18, and the square steel 18 is axially and elastically connected with the positioning pin shaft 5, so that the square steel 18 can rotate together with the rotation of the positioning pin shaft 5 to achieve the effect of back locking.

Furthermore, the button 4 can be a single body or can be split into multiple bodies, and the button 4 can also be indirectly connected with the handle shaft 1 and the positioning pin shaft 5 through a shaft pin.

Specifically, the handle shaft 1 is rotated, so that the button 4 and the positioning pin shaft 5 are connected through the matching structure to rotate together. The positioning pin shaft 5 is elastically connected with a transmission shaft 6 in the axial direction, and the positioning pin shaft 5 and the transmission shaft 6 are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft 5 and the transmission shaft. The transmission shaft 6 with be equipped with a limit structure who is used for restricting their looks mutual pivoted between the locating pin 5, and because press button 4 and handle axle 1 and locating pin 5 between be connected through agreeing with the structure, when press button 4 pressed, form the linkage between press button 4 and handle axle 1 and the locating pin 5, therefore when rotating handle axle 1, can drive the rotation of press button 4, press button 4 drives locating pin 5 rotatory simultaneously to the realization prevents cat eye's function. The utility model discloses the button is connected through agreeing with the mode with locating pin axle and handle axle owing to set up in the shaft hole, is connected for the axial in axle and hole to reduced the handle in the structure demand in Z to the space, not occuping handle periphery space, the space of solving interior panel handle is little, the spare part is many, is difficult to the problem of global design.

Example two

As another embodiment of the present invention, shown in fig. 1-7, a cat eye prevention mechanism is provided, which includes a handle main body 2, the main body includes a handle shaft 1, a shaft hole 27 is provided on the handle shaft 1, a limiting portion 26 is provided in the shaft hole 27, a positioning pin 5 is provided on one side of the limiting portion 26, a button 4 is elastically provided on the other side of the limiting portion 26, and a fitting structure is provided between the button 4 and the handle shaft 1 as well as between the button 4 and the positioning pin 5; the positioning pin shaft 5 is elastically connected with a transmission shaft 6 in the axial direction, and the positioning pin shaft 5 and the transmission shaft 6 are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft 5 and the transmission shaft.

The positioning pin shaft 5 is provided with a first spiral surface 8 and a first radial limiting surface 9 arranged at the tail end of the first spiral surface 8, the limiting portion 26 is provided with a second spiral surface 10 and a second radial limiting surface 13 arranged at the tail end of the second spiral surface 10, and the second spiral surface 10 and the second radial limiting surface 13 are respectively matched with the first spiral surface 8 and the first radial limiting surface 9.

Optionally, the first spiral surface 8 and the second spiral surface 10 may be spiral, may be in a bevel shape, or may be in a small trapezoidal bevel shape. The shaft hole 27 formed in the handle shaft 1 is used for mounting the positioning pin 5, and the button 4 can be elastically arranged on the other side of the limiting part 26.

Specifically, the handle shaft 1 is rotated, so that the button 4 and the positioning pin shaft 5 are connected through the matching structure to rotate together. And the positioning pin shaft 5 is provided with a first spiral surface 8 and a first radial limiting surface 9 arranged at the tail end of the first spiral surface 8 and used for being matched with the limiting part 26. The positioning pin shaft 5 is elastically connected with a transmission shaft 6 in the axial direction, and the positioning pin shaft 5 and the transmission shaft 6 are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft 5 and the transmission shaft. Because the first helicoid 8 and the first radial limiting surface 9 on the locating pin 5 are respectively matched with the second helicoid 10 and the second radial limiting surface 13 on the limiting part 26, a limiting structure for limiting the mutual rotation of the transmission shaft 6 and the locating pin 5 is arranged between the transmission shaft 6 and the locating pin 5, when the handle shaft 1 is lifted up for the back locking work, the second radial limiting surface 13 of the handle shaft 1 is contacted with the first radial limiting surface 9 of the locating pin shaft to drive the locating pin shaft to rotate, and simultaneously, the transmission shaft 6 is driven to rotate; when the handle is pressed down, the second spiral surface 10 of the handle shaft 1 is contacted with the first spiral surface 8 of the positioning pin shaft 5 to slide radially, so that a radial driving force cannot be provided to drive the positioning pin shaft to rotate, and the transmission shaft 6 is still. When the handle returns, the positioning pin shaft 5 slides along the spiral surface in the radial direction under the elastic compression force of the transmission shaft 6 and moves along the axial direction at the same time, and finally returns to the initial state. And because the button 4 is connected with the handle shaft 1 and the positioning pin shaft 5 through the conjunction structure, when the button 4 is pressed down, the button 4 is linked with the handle shaft 1 and the positioning pin shaft 5, so that when the handle shaft 1 is rotated, the button 4 can be driven to rotate, and meanwhile, the button 4 drives the positioning pin shaft 5 to rotate, thereby realizing the function of preventing cat eyes.

In this embodiment, as shown in fig. 1 to fig. 7, an axial connecting hole 30 is disposed on the positioning pin 5, the transmission shaft 6 is disposed in the connecting hole 30, and the limiting structure includes: the third limiting surface 29 arranged in the connecting hole 30 and the fourth limiting surface 33 arranged on the periphery of the transmission shaft 6 are matched to enable the transmission shaft 6 to rotate along with the positioning pin shaft 5 when the positioning pin shaft 5 rotates. The connecting hole 30 is used for placing the transmission shaft 6, so that the transmission shaft 6 can axially move in the connecting hole 30, and because the positioning pin 5 is elastically connected with the transmission shaft 6, when the positioning pin 5 axially moves in the shaft hole 27, the transmission shaft 6 axially moves under the action of elastic force, moves to a lock cylinder position through the transmission shaft 6, and then the positioning pin 5 rotates to drive the transmission shaft 6 to rotate to perform back locking. The positioning pin shaft 5 can drive the transmission shaft 6 to rotate when rotating, the tail end of the transmission shaft 6 is used for connecting the position of the lock cylinder, and the lock is locked by rotating the transmission shaft 6.

In this embodiment, as shown in fig. 1 to 7, the connecting hole 30 includes four third limiting surfaces 29 to form a square hole 7 structure, and four fourth limiting surfaces 33 are correspondingly disposed on the periphery of the transmission shaft 6 to form a square shaft structure. The square shaft structure is matched with the square hole 7 structure, so that the transmission shaft 6 and the positioning pin shaft 5 are limited to rotate mutually under the matching of the square shaft structure and the square hole 7 structure. For example, when the positioning pin 5 rotates, the transmission shaft 6 can be driven to rotate together; conversely, when the transmission shaft 6 rotates, the positioning pin 5 can also be driven to rotate together.

Optionally, the connecting hole 30 further includes a triangular hole structure formed by three third limiting surfaces 29, three fourth limiting surfaces 33 are correspondingly arranged on the periphery of the transmission shaft 6 to form a prismatic shaft structure, and the positioning pin shaft 5 and the transmission shaft 6 are limited to rotate mutually through the cooperation of the triangular hole structure and the prismatic shaft structure. Although the limiting effect between the structure of the square hole 7 and the structure of the square shaft is good, as long as the connecting hole 30 is adapted to the outer peripheral structure of the transmission shaft 6 and is not a circular structure, it is sufficient to ensure that the connecting hole 30 and the outer peripheral structure of the transmission shaft 6 can mutually limit rotation, which is not described in detail herein.

Further, an arc-shaped surface 24 is arranged on each of the four third limiting surfaces 29.

In this embodiment, referring to fig. 1 to 5, a first spring 14 is disposed in the connecting hole 30 of the positioning pin 5, and the transmission shaft 6 is elastically connected to the connecting hole 30 through the first spring 14. The shaft 6 is axially movable within the pin 5, and the engagement structure axially moves the pin 5 within the hole 27 by pressing the button 4. When the handle shaft 1 is returned, the positioning pin 5 is radially slid along the spiral surface and simultaneously axially moved by the elastic compression force of the first spring 14, and finally returns to the initial position.

In this embodiment, as shown in fig. 1 to 7, the engagement structure between the handle shaft 1 and the button 4 is: the square hole 7 arranged on the limiting part 26 and the square rod 15 arranged at the tail end of the button 4, wherein the square rod 15 passes through the square hole 7 when the button 4 is pressed. The square hole 7 is matched with the square rod 15 in structure, so that the square rod 15 plays a role in guiding when passing through the square hole 7. And the square rod 15 can penetrate through the square hole 7 to be connected with the bottom end of the positioning pin shaft 5. When the handle shaft 1 is rotated, the square bar 15 is also rotated along with the handle shaft 1.

Optionally, the fitting structure between the handle shaft 1 and the button 4 is a triangular hole arranged on the limiting portion 26, and a triangular rod arranged at the end of the button 4, and the triangular rod passes through the triangular hole when the button 4 is pressed.

Optionally, the fitting structure between the handle shaft 1 and the button 4 is a cross-shaped hole formed in the limiting portion 26 and a cross rod arranged at the end of the button 4, and the cross rod passes through the cross-shaped hole when the button 4 is pressed. Therefore, it is only necessary to ensure that the fitting structures between the handle shaft 1 and the button 4 are mutually matched, and the fitting structures are not circular.

In this embodiment, as shown in fig. 1 to 7, the fitting structure between the handle shaft 1 and the positioning pin 5 is: the button 4 is arranged at the tail end of the square rod 15 and the square groove 12 formed in the end portion of the positioning pin shaft 5, and when the button 4 is pressed, the square rod 15 is pressed into the square groove 12. The square groove 12, the square rod 15 and the square hole 7 are matched in structure, so that the direction rod penetrates through the square hole 7 into the square groove 12 when the button 4 is pressed. When the handle body 2 is lifted up, the second radial limiting surface 13 is in contact with the first radial limiting surface 9, so that the positioning pin shaft 5 is driven to rotate, and the transmission shaft 6 is driven to rotate to perform back locking. When the handle shaft 1 is pressed down, only after the button 4 is pressed, the square rod 15 of the button 4 penetrates through the square hole 7 and is inserted into the square groove 12 of the positioning pin shaft 5, the handle shaft 1 can drive the positioning pin shaft 5 to rotate through the button 4, meanwhile, the transmission shaft 6 is driven to act, and after the handle shaft 1 is reversed by 180 degrees, the logical action is the same as that when the handle shaft is not reversed.

Further, a partition layer 11 is disposed between the square groove 12 and the connection hole 30. Partition layer 11 is used for the restriction square pole 15 reaches the position of transmission shaft 6 avoids transmission shaft 6 with the direct connection of locating pin 5 bottom.

Optionally, the fitting structure between the handle and the positioning pin 5 may be: triangular structure, cross structure, polygonal structure, etc. The handle shaft 1 can drive the square rod 15 to rotate when rotating, and the positioning pin shaft 5 and the shaft hole 27 are of a circular structure. When the handle shaft 1 is pressed down, the first spiral surface 8 and the second spiral surface 10 are in contact with each other to slide radially, and radial driving force cannot be provided to drive the positioning pin shaft 5 to rotate, so that the transmission shaft 6 is static.

In this embodiment, as shown in fig. 1 to 3, the button 4 is elastically coupled to the inside of the handle shaft 1 by a second spring 19. The second spring 19 is sleeved on the square rod 15 of the button 4, and the second spring 19 is arranged on two sides of the edge of the square hole 7, so that the second spring 19 can receive the limiting effect between the direction rod and the handle shaft 1. The second spring 19 is used for resetting the button 4, when the button 4 is pressed, the square rod 15 penetrates through the square hole 7 to the square groove 12, the positioning pin shaft 5 is driven to rotate through rotation, and therefore the transmission shaft 6 arranged in the positioning pin shaft 5 in a mutually rotating mode is also driven to rotate. When the button 4 is released, the button 4 is restored to the original position under the elastic deformation of the second spring 19, and the return effect of the button 4 is ensured.

In this embodiment, as shown in fig. 1 to 7, the handle main body 2 further includes: the handle is characterized by comprising a handle 32 arranged on the handle shaft 1 and a handle cover 3 matched with the handle 32, wherein an avoiding position 23 at one end of the button 4 is arranged on the handle cover 3. The handle cover 3 is used for protecting the button 4 and limiting the movement position of the button 4, so as to prevent the button 4 from popping out of the handle shaft 1 due to the small elasticity of the second spring 19, and the handle 32 is used for driving the handle shaft 1 to rotate, so that the handle shaft 1 has a labor-saving effect when rotating. The avoiding position 23 is used for limiting one end of the button 4, so that the button 4 is restored to the original position under the elasticity of the second spring 19.

Further, a circular groove 16 is formed in the handle body 2, the center of the circular groove 16 is aligned with the center of the square hole 7, and the button 4 is disposed in the circular groove 16. The circular groove 16 is used for limiting the movement position of the button 4, so that the second spring 19 can axially push the button 4 along the circular groove 16 when the button 4 returns to the original position, and the button 4 can be quickly restored to the original position.

Furthermore, the button 4 is provided with a circular ring part 17 corresponding to the circular groove 16, and the circular ring part 17 is arranged in the circular groove 16. The button 4 can axially move through the circular ring part 17 and the circular groove 16 when being pressed, the circular groove 16 can play a guiding effect on the circular ring part 17, and meanwhile, the circular ring part 17 can also play a limiting effect on the second spring 19.

Further, be equipped with a plurality of counter bores 20 on the handle, be equipped with on the handle lid 3 with a plurality of screw holes 21 that a plurality of counter bores 20 correspond, the handle lid 3 with the handle main part 2 passes through a plurality of screws 22 a plurality of counter bores 20 reaches a plurality of screw holes 21 fixed connection. The plurality of counter bores 20 are two counter bores 20 that set up side by side, a plurality of screw holes 21 also are for setting up two screw holes 21 side by side, two counter bores 20 with two screw holes 21 correspond the setting, two counter bores 20 with two screw holes 21 pass through screw 22 fixed connection. The handle cover 3 and the handle main body 2 are well fixed, meanwhile, the handle 22 is fixed to be convenient to replace after the handle is damaged, and the handle cover 3 can also protect the handle and internal components of the handle. Therefore, the screw 22 is arranged in the counter bore 20, and meanwhile, the back surface of the counter bore 20 corresponds to the door, so that the handle is prevented from being detached by a thief, and the anti-theft effect of the handle is improved.

In this embodiment, as shown in fig. 1 to 7, the number of the first spiral surfaces 8 and the number of the first radial direction limiting surfaces 9 are plural, and the number of the second spiral surfaces 10 and the number of the second radial direction limiting surfaces 13 correspond to the number of the first spiral surfaces 8 and the number of the first radial direction limiting surfaces 9. Since the plurality of first spiral surfaces 8 are disposed corresponding to the plurality of second spiral surfaces 10, the plurality of first radial direction restriction surfaces 9 are disposed corresponding to the plurality of second radial direction restriction surfaces 13. When the handle shaft 1 is lifted up for carrying out the back locking work, the second radial limiting surface 13 of the handle shaft 1 is contacted with the first radial limiting surface 9 of the positioning shaft pin to drive the positioning shaft pin to rotate and drive the transmission shaft 6 to rotate at the same time; when the handle is pressed down, the second spiral surface 10 of the handle shaft 1 is contacted with the first spiral surface 8 of the positioning pin shaft 5 to slide radially, so that a radial driving force cannot be provided to drive the positioning pin shaft to rotate, and the transmission shaft 6 is still. When the handle returns, the positioning pin shaft 5 slides along the spiral surface in the radial direction under the elastic compression force of the transmission shaft 6 and moves along the axial direction at the same time, and finally returns to the initial state. And because the button 4 is connected with the handle shaft 1 and the positioning pin shaft 5 through the conjunction structure, when the button 4 is pressed down, the button 4 is linked with the handle shaft 1 and the positioning pin shaft 5, so that when the handle shaft 1 is rotated, the button 4 can be driven to rotate, and meanwhile, the button 4 drives the positioning pin shaft 5 to rotate, thereby realizing the function of preventing cat eyes.

The utility model discloses the button is connected through agreeing with the mode with locating pin axle and handle axle owing to set up in the shaft hole, is connected for the axial in axle and hole to reduced the handle in the structure demand in Z to the space, not occuping handle periphery space, the space of solving interior panel handle is little, the spare part is many, is difficult to the problem of global design.

Meanwhile, the positioning pin shaft 5 is connected with the transmission shaft 6 through the shaft and the hole, and the pressure of the first spring 14 is utilized to enable the positioning pin shaft to slide through the spiral surface so as to reset the handle.

EXAMPLE III

As another embodiment of the present invention, referring to fig. 1-7, the present invention further provides a cat-eye prevention mechanism, which comprises a handle body 2, wherein the body comprises a handle shaft 1, a shaft hole 27 is provided on the handle shaft 1, a limiting portion 26 is provided in the shaft hole 27, a positioning pin 5 is provided on one side of the limiting portion 26, a button 4 is provided on the other side of the limiting portion 26, the button 4 is engaged with the handle shaft 1 and the positioning pin 5, a first spiral surface 8 and a first radial limiting surface 9 provided at the end of the first spiral surface 8 are provided on the positioning pin 5, a second spiral surface 10 and a second radial limiting surface 13 provided at the end of the second spiral surface 10 are provided on the limiting portion 26, the second spiral surface 10 and the second radial limiting surface 13 are respectively connected to the first spiral surface 8, the second spiral surface 13, and the first radial limiting surface 9, The first radial limiting surfaces 9 are matched; the positioning pin shaft 5 is elastically connected with a transmission shaft 6 in the axial direction, and the positioning pin shaft 5 and the transmission shaft 6 are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft 5 and the transmission shaft.

Be equipped with axial connecting hole 30 on the transmission shaft 6, locating pin axle 5 sets up in connecting hole 30, limit structure includes: the third limiting surface 29 arranged in the connecting hole 30 and the fourth limiting surface 33 arranged on the periphery of the positioning pin shaft 5 enable the transmission shaft 6 to rotate along with the positioning pin shaft 5 through the cooperation of the third limiting surface 29 and the fourth limiting surface 33 when the positioning pin shaft 5 rotates. A first spring 14 is arranged in a connecting hole 30 of the transmission shaft 6, and the positioning pin 5 is connected in the connecting hole 30 through the first spring 14.

Further, the positioning pin 5 includes a first connecting rod disposed in the connecting hole 30 and a second connecting rod disposed in the shaft hole 27. The second connecting rod is matched with the shaft hole 27, and the first connecting rod is matched with the connecting hole 30 in structure. The second connecting rod is adapted to the shaft hole 27, so that the positioning pin shaft 5 cannot deviate in the shaft hole 27, and the centers of the positioning pin shaft 5 and the shaft hole 27 are ensured to be on the same straight line. The connecting hole 30 and the first connecting rod are rotatably arranged, so that the positioning pin shaft 5 rotates to drive the transmission shaft 6 to rotate together.

Example four

As another embodiment of the present invention, the present invention further provides a door handle, which is shown in fig. 1-7 and comprises the anti-peep hole mechanism. The door handle has good anti-theft effect through the use of the cat eye prevention mechanism, so that the door handle is safe to use and convenient to popularize and use.

EXAMPLE five

As another embodiment of the present invention, the present invention further provides a door, which is shown in fig. 1 to 7 and includes the door handle. The door handle makes the anti-peep hole mechanism carry out the back lock through the rotation, has improved the theftproof effect of door, avoids the thief to unblank through the peep hole on the door. The utility model discloses simple structure prevents that the cat eye is effectual, convenient to popularize and use.

In summary, the second spiral surface 10 and the second radial limiting surface 13 disposed at the end of the second spiral surface 10 are disposed on the limiting portion 26, and the second spiral surface 10 and the second radial limiting surface 13 are respectively disposed in cooperation with the first spiral surface 8 and the first radial limiting surface 9. When the handle is lifted up to perform the back locking work, the second radial limiting surface 13 of the handle is contacted with the first radial limiting surface 9 to drive the positioning shaft pin to rotate and drive the transmission shaft 6 to rotate; when the handle is pressed down, the second spiral surface 10 of the handle is contacted with the first spiral surface 8 of the positioning shaft pin to slide radially, a radial driving force cannot be provided to drive the positioning shaft pin to rotate, and at the moment, the transmission shaft 6 is still. When the handle is returned, the positioning pin shaft 5 radially slides along the spiral surface under the elastic compression force of the first spring 14 and simultaneously axially moves, and finally returns to the initial state. When the handle is pressed down, only when the square rod 15 of the button 4 is inserted into the spiral groove 12 of the first spiral surface 8 of the positioning shaft pin after the button 4 is pressed, the handle can drive the positioning pin to rotate through the button 4 and drive the transmission shaft 6 to move; after the handle is reversed by 180 degrees, the logic action is the same as that of the non-reversed handle.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (12)

1. A cat eye prevention mechanism comprises a handle main body and is characterized in that the main body comprises a handle shaft, a shaft hole is formed in the handle shaft, a limiting part is arranged in the shaft hole, a positioning pin shaft is arranged on one side of the limiting part, a button is elastically arranged on the other side of the limiting part, and a fitting structure is arranged among the button, the handle shaft and the positioning pin shaft;

the positioning pin shaft is elastically connected with a transmission shaft in the axial direction, and the positioning pin shaft and the transmission shaft are provided with limiting structures for limiting the mutual rotation between the positioning pin shaft and the transmission shaft.

2. The anti-peep hole mechanism according to claim 1, wherein the positioning pin is provided with a first spiral surface and a first radial limiting surface arranged at the end of the first spiral surface, the limiting portion is provided with a second spiral surface and a second radial limiting surface arranged at the end of the second spiral surface, and the second spiral surface and the second radial limiting surface are respectively matched with the first spiral surface and the first radial limiting surface.

3. The cat eye prevention mechanism of claim 2 wherein the locating pin is provided with an axial connecting hole, the transmission shaft is arranged in the connecting hole, and the limiting structure comprises: the positioning pin shaft is arranged on the transmission shaft, the connecting hole is formed in the transmission shaft, the third limiting surface is arranged in the connecting hole, the fourth limiting surface is arranged on the periphery of the transmission shaft, and when the positioning pin shaft rotates, the transmission shaft rotates along with the positioning pin shaft through the cooperation of the third limiting surface and the fourth limiting surface.

4. The anti-peep hole mechanism according to claim 3, wherein the connecting hole comprises four third limiting surfaces forming a square hole structure, and four fourth limiting surfaces correspondingly arranged on the periphery of the transmission shaft form a square shaft structure.

5. The anti-peep hole mechanism according to claim 3, wherein a first spring is disposed in the connecting hole of the positioning pin shaft, and the transmission shaft is elastically connected in the connecting hole through the first spring.

6. The anti-peep hole mechanism of claim 1, wherein the engagement between the handle shaft and the button is: set up square hole and setting in spacing portion are in the terminal square pole of button, when the button is pressed square pole passes square hole.

7. The anti-peep hole mechanism of claim 1, wherein the fit between the handle shaft and the positioning pin shaft is: the button is arranged at the tail end of the square rod and the square groove formed in the end part of the positioning pin shaft, and the square rod is pressed into the square groove when the button is pressed.

8. The anti-peep hole mechanism of claim 1, wherein the button is elastically connected in the handle shaft by a second spring.

9. The anti-peep hole mechanism of claim 1, wherein the handle body further comprises: the handle is arranged on the handle shaft, the handle cover is arranged to be matched with the handle, and the handle cover is provided with an avoiding position at one end of the button.

10. The anti-peep hole mechanism of claim 2, wherein the number of the first helical face and the first radial limiting face is plural, and the number of the second helical face and the second radial limiting face corresponds to the number of the first helical face and the first radial limiting face.

11. A door handle comprising an anti-peep feature as claimed in any of claims 1 to 10.

12. A door comprising the door handle as claimed in claim 11.

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