CN213628296U

CN213628296U - Anti-releasing buckle device

Info

Publication number: CN213628296U
Application number: CN202021524640.XU
Authority: CN
Inventors: 王志军; 陈德欢
Original assignee: Marquardt Switches Shanghai Co ltd
Current assignee: Marquardt Electronic Technology Shanghai Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-07-06
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses an anticreep buckle device, including cassette, pothook, still include a locking piece, the locking piece gives a pothook locking thrust when pothook and cassette are in the block state and locks and prevent to drop, and is simple suitable for, has guaranteed the quality of buckle product.

Description

Anti-releasing buckle device

Technical Field

The utility model relates to the field of machinary, more specifically relate to anticreep buckle device between the part is connected.

Background

The buckle is the connection structure between the part, influences the performance and the life-span of product, generally comprises pothook and draw-in groove, and in the assembling process, the pothook warp or partial deformation. Once the hooks enter the corresponding slots, the hooks will spring back to their original positions, so as to be unhooked. At present common buckle structure exists and can't ensure the buckle assembly and target in place and the problem that the product drops easily in the vibrations service environment of equidirectional not, to the step that whether the common solution of above problem targets in place for increasing the production line staff inspection buckle, not only expends man-hour, and visual inspection leaks easily moreover and examines, causes the defective products to flow to produce the customer and complain or even incident.

The utility model discloses an anticreep buckle device, including cassette, pothook, still include a locking piece, the locking piece gives a pothook locking thrust when pothook and cassette are in the block state and locks and prevent to drop, and is simple suitable for, has improved the quality of buckle product.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an anticreep buckle device, including cassette, pothook, still include a locking piece, the locking piece gives a pothook locking thrust when pothook and cassette are in the block state, just because the existence of this locking thrust for the pothook does not disturb because of the resilience force of pothook or the vibrations of environment and drops when cassette are in the block state.

The locking piece is an elastic cantilever rod piece with one end fixedly connected and the other end being a free end, one end of the elastic cantilever rod piece is fixedly connected to the clamping seat body or other parts, and the free end of the elastic cantilever rod piece is tightly attached to the back face of the clamping hook to provide thrust for the clamping hook so as to prevent the clamping hook from falling off.

In order to prevent the falling off better, the clamping matching surface of the clamping hook and the clamping seat is an inclined surface which forms an acute angle with the horizontal plane, of course, the acute angle is between 5 degrees and 15 degrees, and is preferably 7 degrees.

When the hook and the clamping seat are in a clamping state, the locking piece gives a locking thrust to the hook through the fact that the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat is smaller than the width (d2) of the part of the clamping hook in a free state.

Preferably, the relationship between the distance (d1) between the thrust surface of the lock piece and the opposite surface of the clamping seat in the free state and the width dimension (d2) of the clamping hook part is as follows: d1 is more than or equal to 0.4x d2 and less than or equal to 0.8x d 2.

Preferably, the relationship between the distance (d1) between the thrust surface of the lock piece and the opposite surface of the clamping seat in the free state and the width dimension (d2) of the clamping hook part is as follows: d1 is 0.5x d 2.

Preferably, the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat in the free state is smaller than or equal to the width dimension (d3) of the neck part of the clamping hook.

Preferably, the relationship between the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat in the free state and the width dimension (d3) of the neck part of the clamping hook is as follows: d 1-0.90 xd 3.

Preferably, the catch is provided with a recess at the catch neck which cooperates with the catch projection (34).

Preferably, a guide inclined plane is arranged on the contact opposite surface of the clamping hook and/or the clamping seat in the clamping process of the clamping hook and the clamping seat; the angle between the inclined guide surface and the horizontal plane is 60-90 degrees, and the optimal angle is 85 degrees.

Preferably, an elastic block is arranged on the thrust contact surface of the locking piece and the clamping hook; the elastic block is preferably an elastic rubber body.

Preferably, the clamping seat, the locking piece and the clamping hook are made of plastic.

Preferably, the clamping seat, the locking piece and the clamping hook are made of aluminum alloy or bronze.

Preferably, the locking member is integrally cast with the cartridge.

Drawings

Fig. 1 is a perspective view of an anti-disengagement buckle device of embodiment 1 of the present invention.

Fig. 2 is a cross-sectional view showing an engagement state of the disengagement prevention locking device of embodiment 1 of the present invention.

Fig. 3 is a cross-sectional view of the disengagement preventing device of embodiment 1 of the present invention in a free state.

Fig. 4 is a perspective view of the anti-disengagement buckle device of embodiment 2 of the present invention.

Fig. 5 is a cross-sectional view showing the engagement state of the anti-disengagement device according to embodiment 2 of the present invention.

Fig. 6 is a cross-sectional view of the disengagement preventing device of embodiment 2 of the present invention in a free state.

Fig. 7 is a perspective view of an anti-disengagement buckle device of embodiment 3 of the present invention.

Fig. 8 is a cross-sectional view showing an engagement state of an anti-disengagement device according to embodiment 3 of the present invention.

Fig. 9 is a cross-sectional view of the disengagement preventing device of embodiment 3 of the present invention in a free state.

Description of the reference numerals

01 example 1 anti-trip device 02 example 2 anti-trip device

03 embodiment 3 anticreep buckle device 1101 cassette

2102 clamp 3103 clamp

1201 hook 2202

3203 hook 1301 elastic cantilever rod piece

2302 resilient cantilever bar 3303 resilient cantilever bar

34 concave part of the clamping seat protrusion 35

36 guide inclined plane 37 elastic block

Detailed Description

The following describes a preferred embodiment of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1-9, the

anti-releasing fastener devices

01, 02, 03 include

card holders

11, 21, 31,

hooks

12, 22, 32, the present invention is characterized in that the present invention includes a locking member, which provides a locking thrust to the hooks when the hooks and the card holders are in a clamping state, specifically, as shown in fig. 2, the thrust is opposite to the direction of the hooks disengagement, so as to prevent the hooks from disengaging, and prevent the hooks and the card holders from disengaging due to resilience of the hooks or external shock interference, and artificial misoperation when in the clamping state, so as to prevent unsafe accidents, etc. and improve the safety quality of products.

As shown in fig. 1-9, the locking member is an elastic

cantilever bar member

13, 23, 33 having one end fixedly connected to the other end as a free end; wherein, the fixed end can be fixedly connected with the card holder body, and the card holder body is taken as a fixed fulcrum, as shown in fig. 1, fig. 2 and fig. 3 of embodiment 1 and fig. 7, fig. 8 and fig. 9 of embodiment 3; of course, it is not excluded that the fixed end may be fixedly connected to other parts besides the cartridge body as a fixed fulcrum, as shown in fig. 4, 5 and 6 of embodiment 2.

In order to enable the clamping hook to be smoothly inserted into the bayonet of the clamping seat, an inclined plane which forms an acute angle R with the horizontal plane is arranged on a clamping matching surface of the clamping hook and the clamping seat, as shown in fig. 3, the inclined plane is arranged on a contact matching surface of the clamping seat and the clamping hook, the acute angle (R) is preferably 5-15 degrees, and is optimally 7 degrees, a barb type matching is formed, and the effect of preventing falling is further achieved; the angle is too large, and is difficult to unhook when the angle is too small, and the barb effect cannot be achieved when the angle is too small, which is certainly related to the friction coefficient of the two materials;

in order to achieve the clamping state, the locking piece gives a static thrust to the clamping hook, and the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat in the free state is smaller than the part width dimension (d2) of the clamping hook; as shown in fig. 3 and 6. Certainly, the distance between the thrust surface of the locking member and the opposite surface of the clamping seat in the free state (d1) and the width dimension of the clamping hook (d2) are preferably in a relationship that: 0.4x d2 is not less than d1 is not less than 0.8x d2, and it is preferable that the distance (d1) between the thrust surface of the lock piece and the opposite surface of the card holder in the free state and the width (d2) of the part of the hook are in the following relationship: d1 is 0.5x d2, or the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat in a free state is smaller than or equal to the width dimension (d3) of the neck part of the clamping hook; more preferably, the relationship between the distance (d1) between the thrust surface of the locking piece and the opposite surface of the clamping seat in a free state and the width dimension (d3) of the neck part of the clamping hook is as follows: d 1-0.90 xd 3.

As shown in fig. 7, 8 and 9 of embodiment 3 of the present invention, the hook is provided with a concave portion 35 matching with the protrusion 34 of the clamping seat at the clamping neck, so that the design is more beautiful and the clamping effect is better.

In order to ensure that the hook is smoothly clamped in the clamping seat in the clamping process, a guide inclined surface 36 is arranged on the contact opposite surface of the hook and/or the clamping seat, as shown in fig. 9; the inclined surface 36 can be arranged on the contact surface of the hook, as shown in fig. 1, 2, 3, 4, 5 and 6 in the embodiments 1 and 2, or on the contact surface of the clamping seat, as shown in fig. 9; preferably both locations are provided, as shown in fig. 9; the included angle between the guide inclined plane and the horizontal plane cannot be too small, otherwise, the guide inclined plane cannot be clamped into the horizontal plane and is between 60 and 90 degrees; the optimal included angle between the general guide inclined plane and the horizontal plane is 85 degrees; the design of the included angle is of course dependent on the coefficient of friction of the material.

As shown in fig. 8 and 9, in order to increase the pushing force of the locking member to the hook in the engaging state, an elastic block 37 may be disposed on the contact surface of the hook; the elastic block is preferably an elastic rubber body; the clamping seat, the locking piece and the clamping hook can be made of plastic, aluminum alloy or bronze; the locking piece and the clamping seat can be integrally cast and molded.

It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all modifications, equivalents and alternatives.

Claims

1. An anti-release buckle device comprises a buckle seat (11, 21, 31) and a clamping hook (12, 22, 32), and is characterized in that: the clamping hook locking device further comprises a locking piece, and the locking piece gives locking thrust to the clamping hook when the clamping hook and the clamping seat are in a clamping state.

2. Anti-release buckle device according to claim 1, characterized in that the locking member is a resilient cantilever lever (13, 23, 33) with one end fixedly connected to the other end being free.

3. Anti-release buckle device according to claim 2, characterized in that one end of the resilient cantilever bar (13, 23, 33) is fixedly connected to the cassette body.

4. The anti-release buckle device as claimed in claim 1, wherein the engaging surface of the hook and the buckle seat is an inclined surface forming an acute angle with the horizontal surface.

5. The anti-trip snap-off device of claim 4, wherein the acute angle is between 5 and 15 degrees.

6. The anti-trip snap-off device according to claim 5, wherein the acute angle is 7 degrees.

7. The anti-release buckle device as claimed in claim 1, wherein the locking member provides a locking thrust to the hook when the hook is engaged with the socket by a distance between a thrust surface of the locking member and an opposite surface of the socket in a free state being smaller than a width of the hook.

8. The device of claim 7, wherein the locking member provides a locking thrust to the hook when the hook is engaged with the holder, the distance between the thrust surface of the locking member and the opposite surface of the holder in a free state is in accordance with the width of the hook: d1 is more than or equal to 0.4x d2 and less than or equal to 0.8x d 2.

9. The device of claim 8, wherein the locking member provides a locking thrust to the hook when the hook is engaged with the holder, the distance between the thrust surface of the locking member and the opposite surface of the holder in a free state is in accordance with the width of the hook: d1 is 0.5x d 2.

10. The anti-release buckle device according to claim 7, wherein a distance between the thrust surface of the locking member and the opposite surface of the holder in a free state is smaller than or equal to a width dimension of the neck portion of the hook.

11. The anti-release buckle device according to claim 10, wherein the relationship between the distance between the thrust surface of the locking member and the opposite surface of the holder in the free state and the width dimension of the neck portion of the hook is as follows: d 1-0.90 xd 3.

12. Anti-release fastener device according to one of claims 1 to 11, characterized in that the latching hook is provided at the latching neck with a recess (35) which cooperates with the latching projection (34).

13. Anti-release fastener device according to one of claims 1 to 11, characterized in that the hook is provided with a guiding inclined surface (36) on the contact-opposing surface of the hook and/or the seat during engagement with the seat.

14. The device of claim 13, wherein the hook is provided with a guiding inclined surface on the contact-opposing surface of the hook and/or the holder during engagement with the holder, and the guiding inclined surface forms an angle of 60 to 90 degrees with the horizontal plane.

15. The device of claim 14, wherein the hook is provided with a guiding inclined surface on a contact-opposing surface of the hook and/or the holder during engagement with the holder, the guiding inclined surface having an angle of 85 degrees with respect to a horizontal plane.

16. Anti-release device according to one of claims 1 to 11, characterized in that the thrust contact surface of the locking element with the catch is provided with an elastic block (37).

17. The anti-trip snap-off device according to claim 16, wherein the resilient block is preferably an elastic rubber body.

18. The anti-release buckle device according to any one of claims 1 to 11, wherein the clamping seat, the locking member, and the hook are made of plastic.

19. The anti-release buckle device as claimed in any one of claims 1 to 11, wherein the clamping seat, the locking member, and the hook are made of aluminum alloy or bronze.

20. The anti-release fastener apparatus of any one of claims 1-11 wherein the locking member is integrally molded with the seat.