Limiting lock catch and opening and closing clamp comprising same
By designing a locking block and a detachable limiting block for the limit lock, combined with a spring and a handle, the problem of locking failure of the door clamp limit lock during vibration is solved, ensuring the clamp is closed, preventing the clamp from opening and the product from being damaged, and improving production safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAC HONDA AUTOMOBILE CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-21
AI Technical Summary
Existing door clamp limit locks are prone to failure during prolonged movement and vibration with the clamp, causing the clamp to open accidentally, resulting in door collision damage, production line shutdown, and safety accidents.
Design a limit lock, including a locking block and a detachable limit block. The movement of the locking pin is limited by a guide groove. The locking effect is improved by combining a spring and a handle. Magnetic parts and hanging ropes are set on the limit block to prevent it from falling off, ensuring that the clamp remains closed during transportation.
It effectively prevents the clamps from opening during transportation, eliminates the risk of product falling and damage, and improves the safety of the production environment and production efficiency.
Smart Images
Figure CN224144411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, and more specifically, to a limit lock and an opening and closing clamp including the same. Background Technology
[0002] The moving fixture on the car door production line, also known as the car door fixture, can carry four doors of a car and transfer them from the storage area to different processes. The door fixture has two states: open and closed, corresponding to the assembly of the outer side and the assembly of the inner side of the door. The locking of the door fixture in both open and closed states is achieved by limit locks. During the transportation of the car door, the fixture is required to be closed throughout the process, and the locking of the limit locks plays a role in keeping the fixture closed.
[0003] If the door clamp's limiting lock fails to maintain its closed position, the clamp may accidentally open during door transport. This can cause damage to the clamp and the door itself, resulting in damage to the door assembly and overload shutdown of the production line. If this occurs on ramps or during clamp lifting, it can even cause the door to fall, leading to a production safety accident. Furthermore, the limiting lock frequently fails to lock due to vibrations from clamp movement, resulting in frequent production accidents, low production efficiency, and property damage. Utility Model Content
[0004] The purpose of this invention is to overcome the problem that the limiting lock of existing opening and closing clamps is prone to locking failure due to long-term vibration and movement with the clamp. This invention provides a limiting lock and an opening and closing clamp incorporating it. When this limiting lock is used in an opening and closing clamp, it eliminates the risk of the clamp opening, the risk of product falling, and the risk of product damage, indirectly solving and eliminating factors affecting production operations and improving the safety of the production environment.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A limiting lock includes a locking block for rotatably hinged to a fixed member, the locking block having a guide groove for limiting the movement of a locking pin on an opening / closing member, the two ends of the guide groove being an opening constraint portion and a closing constraint portion, respectively; it also includes a limiting block detachably connected in the guide groove, the limiting block filling the remaining space of the guide groove when the locking pin on the opening / closing member is located in the closing constraint portion.
[0007] In use, the opening and closing clamp is generally a combination of an opening / closing component and a fixed component that are rotatably connected. The opening / closing component can move open and close along a rotating shaft. One end of the locking block is rotatably connected to the fixed component, and the other end of the locking block is movable and limited by the opening / closing component through a guide groove. When the opening / closing component is open, the locking pin of the opening / closing component is located in the opening constraint part in the guide groove. When the opening / closing component moves from the open state to the closed state, the locking pin moves in the guide groove, thereby causing the locking block to rotate relative to the locking block until the locking pin enters the closing constraint part of the guide groove and is constrained, thus achieving the limiting and locking of the closed state. The opening and closing clamp needs to be clamped and transported in the closed state, and the effectiveness of the closed state of the opening and closing clamp must be ensured. Otherwise, if the closure fails during the transmission process, it will cause safety accidents and product damage. The present invention is equipped with a detachable limiting block, the shape of which is consistent with the remaining space of the guide groove when closed, occupying the movement space of the locking pin, thereby preventing the closure failure during the movement. After the limit lock of this utility model is put into use, the opening and closing clamp eliminates the risk of clamp opening during transportation, eliminates the production risk of product falling and product damage, indirectly solves and eliminates factors affecting production and operation, and improves the safety of the production environment.
[0008] Furthermore, it also includes a spring with one end fixed to the locking block and the other end fixed to the fixing member. Adding a spring enables the locking block to have a restoring force to maintain its state. When the initial state is that the opening / closing member is closed or open, the spring can apply a spring force to the locking block, allowing the locking pin to be better maintained in the closed or open restraint portion, thus improving the locking effect.
[0009] Furthermore, the axis of the spring is located on the rotation plane of the locking block, and the axis of the spring is perpendicular to the rotation axis of the locking block.
[0010] Furthermore, it also includes a handle located on the locking block.
[0011] Adding a handle facilitates manual unlocking. Currently, the switching between open and closed locking states mainly relies on the opening and closing of the opening and closing components to change the position of the locking block. With the handle, the position of the locking block can be actively changed by swinging the handle, thereby switching the locking state and improving the practicality and flexibility of the limit lock.
[0012] Furthermore, the length of the handle is greater than the width of the locking block. A longer handle amplifies the leverage effect, making it easier for the operator to work.
[0013] Furthermore, the limiting block includes a contouring body, a magnetic suction element disposed on the contouring body, and a retrieval handle disposed on the contouring body.
[0014] During the transportation of some opening and closing clamps, there may be downhill sections, which may cause the limit blocks to fall off. By setting magnetic attachments on the limit blocks, the limit blocks can be attracted to the opening and closing mechanism, making them less likely to fall off and improving safety during use.
[0015] Furthermore, the handle is located on a side that is convenient for the operator to access. The handle facilitates retrieval by the operator, allowing for easy removal when unlocking is needed, or placement when locking to prevent locking failure.
[0016] Furthermore, the limiting block also includes a hanging rope, one end of which is fixed to the fixing member, and the other end of which is fixed to the retrieval handle. Since the limiting block is detachably embedded in the guide groove and is relatively small, it is prone to being lost. The hanging rope, which allows it to be hung around the point of use, prevents loss.
[0017] Furthermore, the main body of the model is a hard rubber stopper.
[0018] Furthermore, the hard rubber stopper can be made of PU or nylon material. Using wear-resistant materials can improve the wear resistance and service life of the limiting block.
[0019] Furthermore, the guide groove is a U-shaped groove, one side opening of the open constraint part and the closed constraint part is a rounded transition, and the other side opening of the open constraint part and the closed constraint part is a corner constraint point.
[0020] This utility model also provides an opening and closing clamp, including a fixing member and an opening and closing member. The fixing member and the opening and closing member are rotatably connected by a first rotating shaft. The opening and closing member is provided with a locking pin and also includes a limiting lock as described above. The locking block is rotatably connected to the fixing member through a second rotating shaft, and the locking pin is limited to move in the guide groove.
[0021] Furthermore, the fixing component is a clamp hanger, and the opening and closing component is a door clamp arm.
[0022] This limit locking device is used on the opening and closing clamps of vehicle doors during transportation. During transportation, due to vibrations and shaking caused by stopping, going uphill, downhill, and ascending / descending, this type of limit locking is prone to failure. Failure could lead to serious production safety accidents and losses, potentially causing production shutdowns. After this limit locking device is implemented, the opening and closing clamps of the vehicle doors during transportation are prevented from opening and colliding with other clamps, thus avoiding production line overload and shutdowns. This indirectly solves and eliminates factors affecting production operation, prevents door falling accidents, and improves the safety of the production environment.
[0023] Compared with the prior art, the beneficial effects of this utility model are:
[0024] (1) One end of the locking block of this utility model is rotatably connected to the fixing part, and the other end of the locking block is movablely limited to the opening and closing part through the guide groove. When the opening and closing part is opened, the locking pin of the opening and closing part is located in the opening constraint part in the guide groove. When the opening and closing part is transferred from the open state to the closed state, the locking pin moves in the guide groove, thereby driving the locking block to rotate relative to the locking block until the locking pin enters the closing constraint part of the guide groove and is constrained, thereby realizing the limiting lock of the closed state. The opening and closing clamp needs to be clamped and transported in the closed state. The effectiveness of the closed state of the opening and closing clamp must be guaranteed. Otherwise, if the closure fails during the transmission process, it will cause safety accidents and product damage. This utility model is equipped with a detachable limiting block. Its shape is consistent with the remaining space of the guide groove when closed, occupying the movement space of the locking pin, thereby preventing the closure failure during the movement.
[0025] (2) After the limit lock of this utility model is put into use, the opening and closing clamp eliminates the risk of clamp opening during transportation, eliminates the production risk of product falling and product damage, indirectly solves and eliminates factors affecting production and operation, and improves the safety of the production environment. Attached Figure Description
[0026] Figure 1 This is a schematic diagram illustrating the application of this utility model;
[0027] Figure 2 This is a schematic diagram of the guide groove in this utility model;
[0028] Figure 3 This is a schematic diagram showing the cooperation between the locking block and the limiting block in this utility model;
[0029] Figure 4 This is a schematic diagram of the limiting block in this utility model;
[0030] Figure 5 This is a partial cross-sectional view of the limiting block in this utility model.
[0031] The markings in the diagram are explained below:
[0032] 1-Locking block, 11-Guide groove, 111-Circular transition, 112-Corner constraint point, 2-Limiting block, 21-Shaped body, 22-Magnetic suction part, 23-Retrieval handle, 24-Hanging rope, 3-Spring, 4-Handle, 100-Fixing part, 200-Opening and closing part, 201-Locking pin. Detailed Implementation
[0033] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0034] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0035] Example 1
[0036] like Figures 1 to 2 As shown, a limiting lock includes a locking block 1 that is rotatably hinged to a fixing member 100. The locking block 1 has a guide groove 11 for limiting the movement of a locking pin 201 on an opening / closing member 200. The two ends of the guide groove 11 are an opening constraint part and a closing constraint part, respectively. It also includes a limiting block 2 that is detachably connected to the guide groove 11. When the locking pin 201 on the opening / closing member 200 is located in the closing constraint part, the shape of the limiting block 2 fills the remaining space of the guide groove 11.
[0037] The working principle of this embodiment is as follows: In use, the opening and closing clamp is generally a rotating connection between the opening and closing part 200 and the fixing part 100. The opening and closing part 200 can move open and close along the rotating shaft. In this embodiment, one end of the locking block 1 is rotatably connected to the fixing part 100, and the other end of the locking block 1 is movablely limited to the opening and closing part 200 through the guide groove 11. When the opening and closing part 200 is opened, the locking pin 201 of the opening and closing part 200 is located in the opening constraint part in the guide groove 11. When the opening and closing part 200 is transferred from the open state to the closed state, the locking pin 201 moves in the guide groove 11, thereby driving the locking. Block 1 rotates relative to locking block 1 until locking pin 201 enters the closed constraint part of guide groove 11 for constraint, thereby achieving the limit locking of the closed state; the opening and closing fixture needs to be clamped and transported in the closed state, and the effectiveness of the closed state of the opening and closing fixture must be guaranteed, otherwise if the closure fails during the transmission process, it will cause safety accidents and product damage. In this embodiment, a detachable limit block 2 is provided, the shape of which is consistent with the remaining space of guide groove 11 when closed, occupying the movement space of locking pin 201, thereby preventing the closure failure during the movement.
[0038] like Figures 1 to 2 As shown, it also includes a spring 3 with one end fixed to the locking block 1 and the other end fixed to the fixing member 100. The addition of the spring 3 enables the locking block 1 to have a restoring force to maintain its state. When the initial state is that the opening and closing member 200 is closed or open, the spring 3 can apply a spring force to the locking block 1, so that the locking pin 201 is better maintained in the closed constraint part or the open constraint part, thereby improving the locking effect.
[0039] In this embodiment, the axis of the spring 3 is located on the rotation plane of the locking block 1, and the axis of the spring 3 is perpendicular to the rotation axis of the locking block 1.
[0040] like Figures 1 to 2 As shown, it also includes a handle 4 provided on the locking block 1.
[0041] Adding a handle 4 facilitates manual unlocking. Currently, the switching between open and closed locking states mainly relies on the opening and closing of the opening and closing component 200 to drive the position change of the locking block 1. After setting the handle 4, the position of the locking block 1 can be actively changed by swinging the handle 4, thereby switching the locking state and improving the practicality and flexibility of the limit lock.
[0042] In this embodiment, the length of the handle 4 is greater than the width of the locking block 1. The longer handle 4 amplifies the lever effect, making it easier for the operator to work.
[0043] like Figure 2As shown, the guide groove 11 is a U-shaped groove, and the opening on one side of the open constraint part and the closed constraint part is an arc transition 111, while the opening on the other side of the open constraint part and the closed constraint part is a corner constraint point 112.
[0044] The advantage of this embodiment is that after the limit lock is put into use, the opening and closing clamps eliminate the risk of clamps opening during transportation, eliminate the production risk of products falling and the risk of product damage, indirectly solve and eliminate factors affecting production operation, and improve the safety of the production environment.
[0045] Example 2
[0046] This embodiment is similar to Embodiment 1, except that in this embodiment:
[0047] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the limiting block 2 includes a modeling body 21, a magnetic suction member 22 disposed on the modeling body 21, and a picking handle 23 disposed on the modeling body 21.
[0048] During the transportation of some opening and closing clamps, there may be downhill sections, which may cause the limiting block 2 to fall off. By setting a magnetic suction component 22 on the limiting block 2, the limiting block 2 can be attracted to the opening and closing component 200, making it less likely to fall off and improving the safety of use.
[0049] In this embodiment, the handle 23 is located on the side that is convenient for the operator to access. The handle 23 facilitates the operator's access and allows for easy removal when unlocking or placement when locking to prevent locking failure.
[0050] like Figure 1 and Figure 3 As shown, the limiting block 2 also includes a hanging rope 24, one end of which is fixed to the fixing member 100, and the other end of which is fixed to the retrieval handle 23. Since the limiting block 2 is detachably embedded in the guide groove 11, and the limiting block 2 is small in size, it is easy to lose. The hanging rope 24 is provided to hang it around the part of use to prevent loss.
[0051] In this embodiment, the modeling body 21 is a hard rubber stopper.
[0052] In this embodiment, the hard rubber stopper can be made of PU or nylon. Using a wear-resistant material improves the wear resistance and service life of the limiting block 2.
[0053] The other structures and principles of this embodiment are the same as those of Embodiment 1.
[0054] Example 3
[0055] This embodiment also provides an opening and closing clamp, including a fixing member 100 and an opening and closing member 200. The fixing member 100 and the opening and closing member 200 are rotatably connected by a first rotating shaft 101. The opening and closing member 200 is provided with a locking pin 201 and also includes a limiting lock as described in the above embodiment. The locking block 1 is rotatably connected to the fixing member 100 by a second rotating shaft 102. The locking pin 201 is limited and movable in the guide groove 11.
[0056] Furthermore, the fixing component 100 is a clamp hanger, and the opening and closing component 200 is a door clamp arm.
[0057] This type of limit lock is used on the opening and closing clamps of the vehicle door during transportation. During transportation, due to the vibration and shaking caused by stopping, going uphill, going downhill, rising and falling, etc., this type of limit lock is very prone to failure. Once it fails, it will cause serious production safety accidents and losses, and may lead to production stoppage and rectification.
[0058] After the limit lock was put into use, the opening and closing clamps of the car door transportation movement eliminated the risk of the clamps opening during the transportation of the car door. It also eliminated the possibility that the opening and closing clamps would open and collide with other clamps in transportation, causing the production line to overload and stop. This indirectly solved and eliminated factors that affect production operation, eliminated the production safety accident of the car door falling off, and improved the safety of the production environment.
[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A limit catch, characterized in that It includes a locking block (1) for rotatably hinged to a fixed member (100), the locking block (1) having a guide groove (11) for limiting the movement of a locking pin (201) on an opening / closing member (200), the two ends of the guide groove (11) being an opening constraint part and a closing constraint part, respectively; it also includes a limiting block (2) detachably connected to the guide groove (11), the shape of the limiting block (2) filling the remaining space of the guide groove (11) when the locking pin (201) on the opening / closing member (200) is located in the closing constraint part.
2. The limit lock according to claim 1, wherein, It also includes a spring (3) with one end fixed to the locking block (1) and the other end of the spring (3) fixed to the fastener (100).
3. The limit catch of claim 2, wherein, The axis of the spring (3) is located on the rotation plane of the locking block (1), and the axis of the spring (3) is perpendicular to the rotation axis of the locking block (1).
4. The limit lock of claim 1, wherein, It also includes a handle (4) provided on the locking block (1).
5. The limit lock of claim 1, wherein, The limiting block (2) includes a model body (21), a magnetic suction element (22) disposed on the model body (21), and a picking handle (23) disposed on the model body (21).
6. The limit catch of claim 5, wherein, The limiting block (2) also includes a hanging rope (24), one end of which is fixed to the fixing member (100), and the other end of which is fixed to the picking handle (23).
7. The limit catch of claim 5 wherein, The model body (21) is a hard rubber stopper.
8. The limit lock of claim 1, wherein, The guide groove (11) is a U-shaped groove, and the opening on one side of the open constraint part and the closed constraint part is a circular arc transition (111), and the opening on the other side of the open constraint part and the closed constraint part is a corner constraint point (112).
9. A clamping device, comprising a fixed part (100) and an opening and closing part (200), the fixed part (100) and the opening and closing part (200) being connected by a first rotating shaft (101), the opening and closing part (200) being provided with a locking pin (201), characterized in that, It also includes the limiting latch according to any one of claims 1-8, wherein the locking block (1) is rotatably connected to the fixing member (100) via the second rotating shaft (102), and the locking pin (201) is limited to move in the guide groove (11).
10. The opening and closing clamp according to claim 9, characterized in that, The fixing component (100) is a clamp hanger, and the opening and closing component (200) is a door clamp arm.