Torsion spring clamping device

Abstract

The utility model discloses torsion spring carding device, including two lugs of fixed mounting in sheet metal board top end and set up in the connecting rod between torsion spring both ends end, the torsion spring end head place rotationally connected with the connecting block, the connecting rod one end fixed mounting has the fixed block, the connecting rod one end is provided with the plug rod, the fixed block one end is provided with the insertion slot, and the plug rod is matched with the insertion slot, the plug rod outer circumferential is provided with the limit slot, the utility model discloses torsion spring first through the lug preliminary positioning, and when the plug rod is butt joint with the insertion slot, the guide block and the guide slot ensure accurate insertion, and the operation is convenient, and the rotation handle drives the limit cam and inserts into the limit slot, and the preliminary locking is realized fast, and then through the embedded rod and the embedded slot cooperation magnet adsorption, double -fixed prevents the limit cam accidental rotation, and the locking is stable, and the whole process does not need complicated tool, and relies on the guide positioning and the cam locking to complete the efficient carding, and the torsion spring carding efficiency is greatly improved, and the structure is stable after guaranteeing the carding, and satisfies the quick assembly demand.

Description

Technical Field

[0001] This utility model relates to the field of torsion spring clamping technology, specifically to a torsion spring clamping device. Background Technology

[0002] Sheet metal chassis is a type of enclosure structure made from sheet metal as the core raw material through a series of sheet metal processing techniques such as shearing, stamping, bending, welding, and surface treatment. It is mainly used to protect internal electronic components, equipment modules, or mechanical parts.

[0003] The surface of the sheet metal chassis panel has protrusions, and one leg of the torsion spring needs to be passed through the protrusions to be fixed for subsequent assembly. When the torsion spring passes through the protrusions on the sheet metal surface, it usually needs to be fixed to prevent it from falling off during installation. However, fixing it manually one by one is time-consuming, and continuous operation can also cause fatigue to the workers. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when a torsion spring passes through a protrusion on the surface of a sheet metal plate, it is usually necessary to fix it to prevent it from falling off during installation. However, fixing it manually one by one is time-consuming and can cause fatigue to the workers. Therefore, a torsion spring clamping device is provided.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a torsion spring mounting device, comprising two protrusions fixedly mounted on the top of a sheet metal plate and a connecting rod disposed between the two ends of the torsion spring. A connecting block is rotatably connected to the end of the torsion spring. A fixing block is fixedly mounted on one end of the connecting rod. An insertion rod is provided at one end of the connecting rod. A slot is provided at one end of the fixing block, and the insertion rod is adapted to the slot. A limiting groove is provided on the outer periphery of the insertion rod. A through groove is symmetrically provided on the outer periphery of the fixing block, and a limiting cam is rotatably connected to the inner side of the through groove. The limiting cam is adapted to the limiting groove. A rotating handle for easy rotation is fixedly mounted on the top of the limiting cam.

[0006] As a further embodiment of this utility model: a rotating shaft that is rotatably connected to the through groove is fixedly installed at one end of the limiting cam, and the rotating shaft is symmetrically fixedly installed at both ends of the limiting cam.

[0007] As a further embodiment of this utility model: a guide block for installation guidance is fixedly installed at one end of the limiting cam, and guide grooves are symmetrically opened at one end of the insertion rod, and the guide grooves are symmetrically opened on the outer periphery of the insertion rod, and the guide grooves are connected to the limiting grooves.

[0008] As a further embodiment of this utility model: the outer periphery of the fixing block is provided with an interlocking groove, and the interlocking grooves are symmetrically provided on the outer periphery of the fixing block. The bottom end of the rotating handle is fixedly installed with an interlocking rod, and the interlocking rod is adapted to the interlocking groove.

[0009] As a further improvement of this utility model: both the bottom end of the insert rod and the inside of the insert groove are fixedly installed with a fixing magnet for magnetic fixation, and the fixing magnets are opposite poles that attract each other.

[0010] As a further improvement of this utility model, the outer periphery of the rotating handle is provided with anti-slip ridges.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model's torsion spring is initially positioned by a protrusion. When the insert rod aligns with the slot, the guide block and guide groove ensure precise insertion and convenient operation. Rotating the handle drives the limiting cam to engage with the limiting groove, quickly achieving initial locking. Then, the interlocking rod and interlocking groove work together with a magnet for magnetic attraction, providing double fixation to prevent accidental rotation of the limiting cam and ensuring a stable lock. The entire process requires no complex tools, relying on guide positioning and cam locking to complete efficient clamping, significantly improving the clamping efficiency of the torsion spring while ensuring structural stability after clamping, meeting the needs of rapid assembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the completed torsion spring mounting structure of this utility model;

[0014] Figure 2 This is a partial schematic diagram of the torsion spring snap-fit ​​mechanism in this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the connecting block in this utility model;

[0016] Figure 4 This is a cross-sectional structural diagram of the fixing block in this utility model;

[0017] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Sheet metal plate; 2. Protrusion; 3. Torsion spring; 4. Connecting rod; 5. Connecting block; 6. Fixing block; 7. Insert rod; 8. Limiting groove; 9. Through groove; 10. Limiting cam; 11. Rotating shaft; 12. Rotating handle; 13. Guide block; 14. Guide groove; 15. Slot; 16. Fitting groove; 17. Fitting rod; 18. Fixing magnet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0021] Reference Figures 1 to 5 In this embodiment of the utility model, the torsion spring mounting device includes two protrusions 2 fixedly installed on the top of the sheet metal plate 1 and a connecting rod 4 disposed between the two ends of the torsion spring 3. A connecting block 5 is rotatably connected to the end of the torsion spring 3. A fixing block 6 is fixedly installed on one end of the connecting rod 4. An insertion rod 7 is opened on one end of the connecting rod 4. A slot 15 is opened on one end of the fixing block 6, and the insertion rod 7 is adapted to the slot 15. A limiting groove 8 is opened on the outer periphery of the insertion rod 7. A through groove 9 is symmetrically opened on the outer periphery of the fixing block 6, and a limiting cam 10 is rotatably connected to the inner side of the through groove 9. The limiting cam 10 is adapted to the limiting groove 8. A rotating handle 12 for easy rotation is fixedly installed on the top of the limiting cam 10. A rotating shaft 11 rotatably connected to the through groove 9 is fixedly installed on one end of the limiting cam 10, and the rotating shaft 11 is symmetrically fixedly installed on both ends of the limiting cam 10.

[0022] The above-mentioned solution employs the following: Sheet metal plate 1, protrusion 2, and torsion spring 3 are all existing technologies and are not described in detail in this application. Protrusion 2 is a through-hole, allowing the connecting pipe 5 to pass through. The bend of the torsion spring contacts one end of protrusion 2, providing initial restraint for the torsion spring 3. Connecting rod 4 is made of high-strength alloy steel with a rust-proof surface treatment to ensure structural stability. Connecting block 5 is made of wear-resistant alloy material, and the rotating connection point with the end of torsion spring 3 is smoothed to reduce rotational friction. Fixing block 6 is made of high-strength engineering plastic or alloy steel, possessing good load-bearing capacity. Insert rod 7 is made of the same material as connecting rod 4 and is fixed by welding or integral molding for a firm connection. Limiting cam 10 and rotating shaft 11 are made of wear-resistant alloy steel with a quenching treatment to improve hardness and wear resistance. Rotating handle 12 is made of engineering plastic with anti-slip textures for easy force application. The advantage of this structural combination is that the torsion spring 3... The connecting rods 4 at both ends are rotatably connected to the connecting block 5. During installation, the insert 7 of the connecting rod 4 is inserted into the slot 15 of the fixing block 6. Rotating the handle 12 drives the limiting cam 10 to rotate around the rotating shaft 11, so that the limiting cam 10 is embedded in the limiting groove 8 of the insert 7. The self-locking characteristic of the cam structure firmly fixes the insert 7 in the slot 15, preventing the connecting rod 4 from separating from the fixing block 6. When disassembly is required, rotate the handle 12 in the opposite direction to make the limiting cam 10 disengage from the limiting groove 8, and then the insert 7 can be pulled out to complete the separation. This structure, together with the torsion spring 3, connecting rod 4, fixing block 6, etc., ensures accurate connection through the positioning cooperation between the insert 7 and the slot 15, and the locking cooperation between the limiting cam 10 and the limiting groove 8 ensures a stable connection. The setting of the handle 12 makes disassembly and assembly convenient. It not only realizes the reliable connection between the torsion spring 3 and the external structure, but also improves the convenience of maintenance and replacement, and ensures the stable operation of the overall structure.

[0023] Reference Figures 1 to 5 One end of the limiting cam 10 is fixedly installed with a guide block 13 for installation guidance, and one end of the insertion rod 7 is symmetrically provided with guide grooves 14, which are symmetrically opened on the outer periphery of the insertion rod 7. The guide grooves 14 are connected to the limiting groove 8.

[0024] The above-mentioned scheme is adopted: the guide block 13 is made of the same material as the limiting cam 10 and is fixed by welding. The surface is polished to reduce sliding resistance. The guide groove 14 is part of the outer periphery of the insertion rod 7. The inner wall is smooth and smoothly transitions with the limiting groove 8. The edges are rounded to avoid scratching the guide block 13. The advantage of this structure is that when the insertion rod 7 is inserted into the slot 15 of the fixing block 6, the guide block 13 at one end of the limiting cam 10 will first enter the guide groove 14 on the outer periphery of the insertion rod 7, slide along the guide groove 14 and guide the limiting cam 10 to accurately align with the limiting groove 8. This avoids collision between the limiting cam 10 and the outer periphery of the insertion rod 7 or failure to smoothly embed into the limiting groove 8 due to the insertion angle deviation of the insertion rod 7. The guide groove 14 and the limiting groove 8 are connected through, so that the guide block 13 can smoothly transition to the limiting groove 8. This ensures that the limiting cam 10 can smoothly lock into the limiting groove 8 when rotating, reducing operating resistance and component wear.

[0025] Reference Figures 1 to 5 The outer periphery of the fixed block 6 is provided with a fitting groove 16, and the fitting groove 16 is symmetrically provided on the outer periphery of the fixed block 6. The bottom end of the rotating handle 12 is fixedly installed with a fitting rod 17, and the fitting rod 17 is adapted to the fitting groove 16. The bottom end of the fitting rod 17 and the inside of the fitting groove 16 are both fixedly installed with a fixing magnet 18 for magnetic fixation, and the fixing magnets 18 are opposite polarities that attract each other. The outer periphery of the rotating handle 12 is provided with anti-slip ridges.

[0026] The above-mentioned solution is adopted as follows: the interlocking groove 16 is part of the fixing block 6, and the material is consistent with it. The inner wall is smooth and the edges are rounded. The interlocking rod 17 is made of the same material as the rotating handle 12 and is fixed by integral molding, which has a certain rigidity and is not easily deformed. The fixing magnet 18 is made of high magnetic neodymium iron boron material. The fixing magnet 18 at the bottom of the interlocking rod 17 is fixed to the interlocking rod 17 by embedding. The fixing magnet 18 inside the interlocking groove 16 is firmly connected to the fixing block 6. The two have opposite polarities to ensure that opposite poles attract each other. The anti-slip embossed texture on the outer periphery of the rotating handle 12 is integrally molded from engineering plastic. The texture is uniform and of moderate depth to enhance the grip. The advantage of this structure is that when the rotating handle 12 drives the limiting cam 10 to the locking position with the limiting groove 8, the insert rod 17 at the bottom of the rotating handle 12 will simultaneously insert into the insert groove 16 on the outer periphery of the fixing block 6. At the same time, the insert rod 17 and the fixing magnet 18 in the insert groove 16 attract each other to achieve magnetic fixation, which keeps the rotating handle 12 stably in the locked position, preventing the limiting cam 10 from being unlocked due to vibration or external force. This ensures that the connection between the insert rod 7 and the fixing block 6 is always stable. The anti-slip ridges on the outer periphery of the rotating handle 12 increase the friction when gripping, making the rotating operation more effortless and less prone to slipping.

[0027] The working principle of this utility model is as follows: First, the two ends of the torsion spring 3 are passed through the symmetrically fixed protrusions 2 at the top of the sheet metal plate 1, so that the torsion spring 3 is initially positioned on the sheet metal plate 1. Then, the connection of the ends of the torsion spring 3 is processed. The connecting block 5 rotatably connected to the end of the torsion spring 3 is aligned with the connecting rod 4. The insertion rod 7 at one end of the connecting rod 4 is aligned with the slot 15 at one end of the fixing block 6. At the same time, it is ensured that the guide groove 14 on the outer periphery of the insertion rod 7 is aligned with the guide block 13 at one end of the upper limit cam 10 of the fixing block 6. Through the guiding action of the guide block 13 and the guide groove 14, the insertion rod 7 is smoothly inserted into the slot 15 until the limiting groove 8 on the outer periphery of the insertion rod 7 corresponds to the position of the limiting cam 10 in the through groove 9 on the outer periphery of the fixing block 6. Then, the rotating handle 12 at the top of the limiting cam 10 is rotated, and the limiting cam 10 rotates around the rotating shaft 11 symmetrically fixed at both ends in the through groove 9. The protruding part of the limiting cam 10 is engaged in the limiting groove 8 of the insert rod 7, achieving initial locking between the insert rod 7 and the fixing block 6, preventing the insert rod 7 from coming out of the slot 15. At this time, the insert rod 17 at the bottom of the rotating handle 12 is aligned with the insert groove 16 on the outer periphery of the fixing block 6 and pressed down. The bottom end of the insert rod 17 and the fixing magnet 18 inside the insert groove 16 are attracted by opposite polarities, fixing the rotating handle 12 in the insert groove 16, thereby locking the position of the limiting cam 10 and preventing it from accidentally rotating during use and causing the locking failure. Through the above operation, the two ends of the torsion spring 3 are quickly and firmly engaged on the sheet metal plate 1 through the connection and locking structure of the connecting rod 4 and the fixing block 6, completing the overall quick engagement of the torsion spring 3. The whole process does not require complicated tools. The efficient engagement is achieved through guide positioning and cam locking, greatly improving the engagement efficiency of the torsion spring.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A torsion spring mounting device, comprising two protrusions (2) fixedly mounted on the top of a sheet metal plate (1) and a connecting rod (4) disposed between the two ends of a torsion spring (3), characterized in that, The torsion spring (3) is rotatably connected to a connecting block (5), and a fixing block (6) is fixedly installed at one end of the connecting rod (4). A plug rod (7) is opened at one end of the connecting rod (4), and a slot (15) is opened at one end of the fixing block (6). The plug rod (7) is adapted to the slot (15). A limiting groove (8) is opened on the outer periphery of the plug rod (7). A through groove (9) is symmetrically opened on the outer periphery of the fixing block (6). A limiting cam (10) is rotatably connected to the inner side of the through groove (9). The limiting cam (10) is adapted to the limiting groove (8). A rotating handle (12) is fixedly installed at the top of the limiting cam (10) for easy rotation.

2. The torsion spring clamping device according to claim 1, characterized in that, One end of the limiting cam (10) is fixedly installed with a rotating shaft (11) that is rotatably connected to the through groove (9), and the rotating shaft (11) is symmetrically fixedly installed at both ends of the limiting cam (10).

3. The torsion spring clamping device according to claim 2, characterized in that, One end of the limiting cam (10) is fixedly installed with a guide block (13) for installation guidance, and one end of the insert rod (7) is symmetrically provided with guide grooves (14), and the guide grooves (14) are symmetrically opened on the outer periphery of the insert rod (7). The guide grooves (14) are connected to the limiting grooves (8).

4. The torsion spring clamping device according to claim 3, characterized in that, The fixed block (6) has a fitting groove (16) on its outer periphery, and the fitting groove (16) is symmetrically opened on the outer periphery of the fixed block (6). The bottom end of the rotating handle (12) is fixedly installed with a fitting rod (17), and the fitting rod (17) is adapted to the fitting groove (16).

5. The torsion spring clamping device according to claim 4, characterized in that, The bottom end of the insert rod (17) and the inside of the insert groove (16) are both fixedly installed with a fixed magnet (18) for magnetic fixation, and the fixed magnets (18) are opposite in polarity and attract each other.

6. The torsion spring clamping device according to claim 5, characterized in that, The outer periphery of the rotating handle (12) is provided with anti-slip ridges.

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