Pulling and locking device of case module

Abstract

The utility model discloses a pulling and locking device of a case module, which comprises a locking mechanism and a pulling mechanism, the locking mechanism comprises an elastic pressing rod and a locking pin, a mounting groove is arranged in a case, the elastic pressing rod and the locking pin are both arranged in the mounting groove and can move up and down relative to the mounting groove, a first positioning hole is arranged on the case, and the elastic pressing rod and the locking pin can move up and down relative to the mounting groove. The module is provided with a second positioning hole, the elastic pressing rod is connected with the locking pin in a matched mode, the elastic force of the elastic pressing rod enables the locking pin to stretch into the second positioning hole and / or the first positioning hole, the pulling mechanism comprises a connecting rod and a lever, the lever is hinged to the module, and the connecting rod is rotatably connected to the end face of the module through the lever. The lever can rotate between a first position and a second position, a square hole is formed in the case, the lever is provided with a round head part, the round head part is in clearance fit with the square hole, a boosting surface and a pulling assisting surface are arranged in the square hole, the locking mechanism plays a locking role, the module is not prone to deviation after being installed, the pulling mechanism plays a role in boosting and pulling assisting, and labor is saved.

Description

Technical Field

[0001] This utility model relates to the field of locking device technology, and in particular to a locking device for pulling out a chassis module. Background Technology

[0002] With the continuous progress and development of science and technology, electronic devices are gradually moving towards lightweight and multifunctionality. This has directly led to the promotion of the concept of electronic integration. More and more electronic components with different functions are installed on chassis modules, resulting in more and more modules inside the chassis. The rapid plugging and unplugging of chassis modules has become a technical problem that urgently needs to be solved.

[0003] In conventional technologies, chassis modules are typically secured using screw fastening, sliding rail clips, or manual locking mechanisms. For example, screw fastening requires repeated tightening with tools, offering high stability but low operational efficiency and being unsuitable for frequent insertion and removal scenarios. Sliding rail clips achieve locking through the sliding engagement of the module with the chassis rails, usually requiring manual pushing during installation. However, existing sliding rail or clip structures lack guiding and locking mechanisms, making misalignment after module installation prone to causing poor contact and affecting equipment reliability. Manual locking mechanisms rely on operator force to press the latch, posing a risk of uneven force leading to module displacement. Furthermore, module removal typically requires manual operation; insufficient force may prevent effective removal, while excessive force can cause excessive wear and tear on the chassis and modules, even resulting in damage. Therefore, improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a lifting and locking device for chassis modules. Its structure is simple and reasonable, and it is easy to operate. It is equipped with a locking mechanism to lock the module in place, so that even when subjected to external impact, the module can maintain high stability and is not prone to displacement, thereby greatly improving the safety and reliability of the entire device. It is also equipped with a lifting mechanism to assist in pushing and pulling. Through this design, the force required during operation is greatly reduced, achieving a labor-saving effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model discloses a lifting and locking device for a chassis module, used for installing the module to the chassis. It includes a locking mechanism and a lifting mechanism. The locking mechanism includes a spring-loaded lever and a locking pin. A mounting groove is provided inside the chassis. The spring-loaded lever and the locking pin are both disposed within the mounting groove and can move vertically relative to the mounting groove. A first positioning hole corresponding to the locking pin is provided on the chassis, and a second positioning hole corresponding to the locking pin is provided on the module. The spring-loaded lever is connected to the locking pin, and the elastic force of the spring-loaded lever causes the locking pin to extend into the second positioning hole and / or the first positioning hole. The lifting mechanism includes a connecting rod and a lever. One end of the lever is hinged to the module, and the other end is connected to a connecting rod. The connecting rod is rotatably connected to the end face of the module via the lever. The lever can rotate between a first position and a second position. The housing is provided with a square hole, and the lever is provided with a round head that mates with the square hole. The round head and the square hole are in clearance fit. The square hole is provided with a pushing surface and a pulling surface. When the lever rotates to the second position until the round head abuts against the pushing surface, it continues to rotate, and the lever provides a pushing force to the module. When the lever rotates to the first position until the round head abuts against the pulling surface, it continues to rotate, and the lever provides a pulling force to the module.

[0007] Furthermore, the elastic pressure rod includes a pressure plate and a compression spring that corresponds to and cooperates with the locking pin. The pressure plate is provided with a limiting hole that corresponds to and cooperates with the locking pin. The locking pin is disposed in the limiting hole and is limited and cooperates with the limiting hole. The upper end of the compression spring abuts and cooperates with the locking pin, and the lower end of the compression spring abuts and cooperates with the bottom of the mounting groove. The pressure plate has a stroke that can move up and down in the mounting groove, and the compression spring makes the locking pin and the pressure plate always have an upward movement tendency.

[0008] Furthermore, the locking pin includes an extended end, a limiting frustum, and a guide post arranged sequentially from top to bottom. The extended end passes through a limiting hole, the limiting frustum is in a limiting fit with the limiting hole, and the upper end of the compression spring is sleeved on the guide post and abuts against the limiting frustum.

[0009] Furthermore, the shape of the mounting groove is adapted to the shape of the pressure plate. The pressure plate includes a pressing part disposed in the middle of the pressure plate and extension parts disposed on both sides of the pressing part. The extension parts are provided with the limiting hole, and the pressing part is provided with the first notch.

[0010] Furthermore, the first gap is U-shaped.

[0011] Furthermore, the end face of the module is provided with a receiving groove for accommodating the connecting rod and the lever, and one end of the lever is hinged to the receiving groove.

[0012] Furthermore, the front end of the chassis is provided with a cover plate that mates with the mounting slot. The cover plate covers the front end of the mounting slot, and a second notch is provided in the middle of the cover plate.

[0013] Furthermore, the second gap is U-shaped.

[0014] Furthermore, the module is slidably connected to the chassis, and slide rails extend outward on both sides of the module. The upper surface of the chassis is provided with a slide groove that cooperates with the slide rails.

[0015] Furthermore, the slide groove is provided with a third positioning hole that corresponds to and cooperates with the locking pin, and the first positioning hole and the third positioning hole are coaxially arranged.

[0016] The beneficial effects of this utility model are as follows: The lifting and locking device for a chassis module described in this utility model includes a locking mechanism disposed on the end face of the chassis and a lifting mechanism disposed on the end face of the module. The locking mechanism plays a locking role, so that after the module is installed in place, it can maintain high stability even when subjected to external impact, and is not easy to displace, thereby greatly improving the safety and reliability of the entire device. The lifting mechanism plays a pushing and lifting role. The locking mechanism includes an elastic pressure rod and a locking pin. The elastic pressure rod includes a pressure plate and a compression spring. The lifting mechanism includes a connecting rod and a lever. The connecting rod is rotatably connected to the end face of the module through the lever. The lever can rotate between a first position and a second position. The module is slidably connected to the chassis. The module is provided with a slide rail. The chassis is provided with a slide groove that cooperates with the slide rail.

[0017] In the initial state, the lever is in the second position, at which point both the lever and the connecting rod are retracted into the module's receiving slot. During installation, pressing down the pressure plate causes the locking pin to disengage from the first and third positioning holes on the chassis and be pushed into the module along the slide groove. Simultaneously, pressing down the connecting rod on the module causes the lever to rotate to the first position. Then, lifting the connecting rod causes the lever to rotate to the second position, with the rounded head of the lever entering the square hole in the chassis and gradually contacting the pushing surface within the square. After contact, the lever continues to rotate to the second position, using the lever principle to provide a pushing force to the module, thus acting as a propulsion mechanism. After rotating to the second position, the lever and connecting rod are once again retracted into the receiving slot, and the rounded head... After installation in the square hole, the pressure plate is released. Under the action of the compression spring, the pressure plate rebounds, allowing the locking pin to extend into the third positioning hole, the second positioning hole on the module, and the first positioning hole for positioning. During disassembly, the pressure plate is pressed down, causing the locking pin to disengage from the first, second, and third positioning holes. Then, the connecting rod is pressed down, causing the lever to rotate to the first position. The round head gradually disengages from the square hole. During this process, the round head gradually comes into contact with the pull-out surface. After contact, the lever continues to rotate, using the lever principle to help pull out the module. This design greatly reduces the force required during operation, achieving a labor-saving effect. The round head design also reduces wear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model when it is not locked;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model when it is locked;

[0020] Figure 3 This is a structural schematic diagram of the first cross-section of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the second cross-section of this utility model;

[0022] Figure 5 This is a schematic diagram of the chassis structure in this utility model;

[0023] Figure 6 This is a schematic diagram of the module structure in this utility model;

[0024] Figure 7 This is an exploded structural diagram of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure when the round head abuts against the booster surface;

[0026] Figure 9 This is a schematic diagram of the structure when the round head abuts against the lifting surface.

[0027] Figures 1-9 In the middle: 1. Module; 11. Slide rail; 12. Second positioning hole; 13. Receiving groove; 2. Chassis; 21. Mounting groove; 211. Cover plate; 2111. Second notch; 22. First positioning hole; 23. Slide groove; 231. Third positioning hole; 24. Square hole; 241. Pushing surface; 242. Pulling surface; 3. Locking mechanism; 31. Pressure plate; 311. Pressing part; 3111. First notch; 312. Extension part; 3121. Limiting hole; 32. Compression spring; 33. Locking pin; 331. Extended end; 332. Limiting truncated cone; 333. Guide post; 4. Pulling mechanism; 41. Connecting rod; 42. Lever; 421. Round head; 5. Screw. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figures 1-9 The diagram illustrates a lifting and locking device for a chassis module, used for installing module 1 to chassis 2. It includes a locking mechanism 3 disposed on the end face of chassis 2 and a lifting mechanism 4 disposed on the end face of module 1. The locking mechanism 3 includes a spring-loaded lever and a locking pin 33. (See reference...) Figure 3 The end face of the chassis 2 is provided with a mounting groove 21. The elastic pressure rod and locking pin 33 are disposed in the mounting groove 21 and can move up and down relative to the mounting groove 21. (See reference...) Figure 5 The chassis 2 is provided with a first positioning hole 22 that corresponds to and engages with the locking pin 33. (See reference) Figure 4 The elastic pressure rod is connected to the locking pin 33. The elastic force of the elastic pressure rod causes the locking pin 33 to extend into the first positioning hole 22 for positioning. Specifically, in this embodiment, module 1 is slidably connected to the chassis 2. See reference. Figure 6 The module 1 has slide rails 11 extending outward on both sides, see reference. Figure 5 The upper surface of the chassis 2 is provided with a slide groove 23 that mates with the slide rail 11. The slide rail 11 is slidably connected to the slide groove 23. A third positioning hole 231 that mates with the locking pin 33 is provided in the slide groove 23. The first positioning hole 22 and the third positioning hole 231 are coaxially arranged. (See reference...) Figure 7 The elastic pressure rod includes a pressure plate 31 and a compression spring 32 corresponding to the locking pin 33. The pressure plate 31 is provided with a limiting hole 3121 corresponding to the locking pin 33. The locking pin 33 includes an extended end 331, a limiting frustum 332, and a guide post 333 arranged sequentially from top to bottom. The limiting frustum 332 is limited and engaged with the limiting hole 3121. The upper end of the compression spring 32 is sleeved on the guide post 333 and abuts against the limiting frustum 332. The lower end of the compression spring 32 abuts against the bottom of the mounting groove 21. Plate 31 has a vertically movable stroke within the mounting groove 21. Under the elastic force of spring 32, locking pin 33 and pressure plate 31 always have an upward tendency, causing the protruding end 331 to pass through limiting hole 3121 and third positioning hole 231 and extend into first positioning hole 22. At this time, module 1 is inconvenient to install due to obstruction by locking pin 33. When the operator needs to install module 1, press down pressure plate 31 so that the protruding end 331 disengages from first positioning hole 22 and third positioning hole 231. At this time, module 1 can be pushed in along slide groove 23.

[0030] Specifically, in this embodiment, refer to Figure 7 Two locking pins 33 are provided, and the two locking pins 33 are respectively provided on both sides of the pressure plate 31. Correspondingly, two compression springs 32 are also provided, which further improves the stability of the structure.

[0031] Preferably, in this embodiment, the shape of the mounting groove 21 is adapted to the shape of the pressure plate 31, see reference. Figure 7 The pressure plate 31 includes a pressing part 311 disposed in the middle of the pressure plate 31 and an extension part 312 disposed on both sides of the pressing part 311. The extension part 312 is provided with the limiting hole 3121. The pressing part 311 is provided with a first notch 3111. Specifically, the first notch 3111 is U-shaped, which makes it easier for the operator's fingers to be inserted into the first notch 3111, so as to press the pressure plate 31 downward more effortlessly and accurately.

[0032] Preferably, in this embodiment, refer to Figure 7 The front end of the chassis 2 is also provided with a cover plate 211 that cooperates with the mounting groove 21. The cover plate 211 covers the front end of the mounting groove 21 and is used to protect the components inside the mounting groove 21. In order to facilitate the operator to easily reach into the mounting groove 21 to press the pressure plate 31 when needed, the middle part of the cover plate 211 is provided with a second notch 2111 that corresponds to the first notch 3111. The second notch 2111 is U-shaped, so that the operator's fingers can smoothly reach into the mounting groove 21 through the second notch 2111.

[0033] Preferably, in this embodiment, refer to Figure 6 The module 1 is provided with a second positioning hole 12 that cooperates with the locking pin 33. When the module 1 is installed in place, the pressure plate 31 is released, and the pressure plate 31 and the locking pin 33 move upward under the elastic force of the compression spring 32, so that the protruding end 331 passes through the third positioning hole 231 and the second positioning hole 12 from bottom to top and extends into the first positioning hole 22, which plays a positioning role. This ensures that the module 1 can maintain high stability even when subjected to external impact after it is installed in place, and is not easy to be displaced, thereby greatly improving the safety and reliability of the entire device.

[0034] Preferably, in this embodiment, the lifting mechanism 4 includes a connecting rod 41 and a lever 42, see reference. Figure 2The end face of module 1 is provided with a receiving groove 13 for accommodating lever 42 and connecting rod 41. One end of lever 42 is hinged in the receiving groove 13, and the other end of lever 42 is connected to connecting rod 41. Connecting rod 41 is rotatably connected to the end face of module 1 through lever 42. Specifically, in this embodiment, levers 42 are connected to both sides of connecting rod 41. The levers 42 and connecting rod 41 are arranged in a "U" shape. The symmetrical design improves the stability of the structure. Lever 42 is hinged to receiving groove 13 by screw 5 to ensure a stable and reliable connection. The operator drives the levers 42 on both sides through connecting rod 41, so that lever 42 can rotate with screw 5 as the fulcrum. The housing 2 is provided with a square hole 24 that mates with lever 42. Preferably, in this embodiment, the lever A round head 421 is provided below the screw 5. The round head 421 is clearance-fitted with the square hole 24. The square hole 24 is provided with a pushing surface 241 and a pulling surface 242. Specifically, the square hole 24 has two surfaces, front and rear. The surface located at the front end of the square hole 24 is the pushing surface 241, and the surface located at the rear end of the square hole 24 is the pulling surface 242. In this embodiment, "front end" and "rear end" are defined relative to the cover plate 211. The end closer to the cover plate 211 is the front end, and the end farther from the cover plate 211 is the rear end. The lever 42 can rotate between a first position and a second position. As the lever 42 rotates from the first position to the second position, the round head 421 gradually enters the square hole 24. During this process, the round head 421 gradually abuts against the pushing surface 241. Figure 8 As shown, after the interaction, lever 42 continues to rotate to the second position, providing a pushing force to module 1 using the lever 42 principle, thus acting as a booster. When rotated to the second position, both lever 42 and connecting rod 41 are retracted into the receiving groove 13, as shown. Figure 2 As shown; during the process of lever 42 rotating from the second position to the first position, the round head 421 gradually disengages from the square hole 24. During this process, the round head 421 gradually comes into contact with the pull-up surface 242, as... Figure 9 As shown, after they collide, lever 42 continues to rotate, and lever 42 helps to pull module 1. This design greatly reduces the force required during operation, achieving a labor-saving effect. The design of the round head 421 can also reduce wear.

[0035] Preferably, in this embodiment, both the connecting rod 41 and the pressure plate 31 are made of aluminum alloy. Aluminum alloy is lightweight, making the connecting rod 41 and the pressure plate 31 lighter and easier for the operator to handle. In addition, aluminum alloy has the advantage of high corrosion resistance, which can improve the service life of the connecting rod 41 and the pressure plate 31.

[0036] The working principle of this utility model is as follows: In the initial state, lever 42 is in the second position, at which time lever 42 and connecting rod 41 are both housed in receiving groove 13. During installation, pressing down the pressure plate 31 causes the locking pin 33 to disengage from the first positioning hole 22 and the third positioning hole 231. Figure 1 As shown, module 1 is pushed in along the slide groove 23, and the connecting rod 41 on module 1 is pressed down, causing lever 42 to rotate to the first position. Then, the connecting rod 41 is lifted, causing lever 42 to rotate to the second position. The round head 421 of lever 42 enters the square hole 24 and gradually comes into contact with the pushing surface 241. After contact, lever 42 continues to rotate to the second position, providing a pushing force to module 1 by means of the lever principle, thus playing a pushing role. After rotating to the second position, lever 42 and connecting rod 41 are once again stored in the receiving groove 13, as shown. Figure 2 As shown, the round head 421 is located inside the square hole 24. After installation, the pressure plate 31 is released, and the pressure plate 31 rebounds under the action of the compression spring 32, so that the locking pin 33 extends into the third positioning hole 231, the second positioning hole 12, and the first positioning hole 22 to play a positioning role. When disassembling, the pressure plate 31 is pressed down, so that the locking pin 33 is disengaged from the first positioning hole 22, the second positioning hole 12, and the third positioning hole 231. Then the connecting rod 41 is pressed down, so that the lever 42 rotates to the first position, and the round head 421 gradually disengages from the square hole 24. During this process, the round head 421 gradually comes into contact with the pull-out surface 242. After contact, the lever 42 continues to rotate, and the pull-out module 1 is pulled out by means of the lever 42 principle.

[0037] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A locking device for removing and securing a chassis module, used for installing a module (1) and a chassis (2), characterized in that: The device includes a locking mechanism (3) and a pulling mechanism (4). The locking mechanism (3) includes an elastic pressure rod and a locking pin (33). The housing (2) is provided with a mounting groove (21). The elastic pressure rod and the locking pin (33) are both located in the mounting groove (21) and can move up and down relative to the mounting groove (21). The housing (2) is provided with a first positioning hole (22) that corresponds to and cooperates with the locking pin (33). The module (1) is provided with a second positioning hole (12) that corresponds to and cooperates with the locking pin (33). The elastic pressure rod is connected to the locking pin (33). The elastic force of the elastic pressure rod causes the locking pin (33) to extend into the second positioning hole (12) and / or the first positioning hole (22). The pulling mechanism (4) includes a connecting rod (41) and a lever (42). One end of the lever (42) is hinged to the module (1), and the other end of the lever (42) is connected to the connecting rod (41). 1) Connected, the connecting rod (41) is rotatably connected to the end face of the module (1) through the lever (42). The lever (42) can rotate between the first position and the second position. The housing (2) is provided with a square hole (24). The lever (42) is provided with a round head (421) that cooperates with the square hole (24). The round head (421) and the square hole (24) are in clearance fit. The square hole (24) is provided with a push surface (241) and a pull surface (242) respectively. When the lever (42) rotates to the second position until the round head (421) abuts against the push surface (241), it continues to rotate and the lever (42) provides a pushing force to the module (1). When the lever (42) rotates to the first position until the round head (421) abuts against the pull surface (242), it continues to rotate and the lever (42) provides a pull force to the module (1).

2. The chassis module lifting and locking device according to claim 1, characterized in that: The elastic pressure rod includes a pressure plate (31) and a spring (32) corresponding to the locking pin (33). The pressure plate (31) is provided with a limiting hole (3121) corresponding to the locking pin (33). The locking pin (33) is located in the limiting hole (3121) and is limited by the limiting hole (3121). The upper end of the spring (32) abuts against the locking pin (33), and the lower end of the spring (32) abuts against the bottom of the mounting groove (21). The pressure plate (31) has a stroke that can move up and down in the mounting groove (21). The spring (32) makes the locking pin (33) and the pressure plate (31) always have an upward movement tendency.

3. The chassis module lifting and locking device according to claim 2, characterized in that: The locking pin (33) includes an extended end (331), a limiting frustum (332) and a guide post (333) arranged sequentially from top to bottom. The extended end (331) passes through the limiting hole (3121). The limiting frustum (332) is in a limiting fit with the limiting hole (3121). The upper end of the compression spring (32) is sleeved on the guide post (333) and abuts against the limiting frustum (332).

4. The chassis module lifting and locking device according to claim 2, characterized in that: The shape of the mounting groove (21) is adapted to the shape of the pressure plate (31). The pressure plate (31) includes a pressing part (311) disposed in the middle of the pressure plate (31) and extensions (312) disposed on both sides of the pressing part (311). The extensions (312) are provided with the limiting hole (3121), and the pressing part (311) is provided with the first notch (3111).

5. The chassis module lifting and locking device according to claim 4, characterized in that: The first notch (3111) is U-shaped.

6. The chassis module lifting and locking device according to claim 1, characterized in that: The end face of the module (1) is provided with a receiving groove (13) for accommodating the connecting rod (41) and the lever (42), and one end of the lever (42) is hinged in the receiving groove (13).

7. The chassis module lifting and locking device according to claim 1, characterized in that: The front end of the chassis (2) is also provided with a cover plate (211) that cooperates with the mounting slot (21). The cover plate (211) covers the front end of the mounting slot (21), and a second notch (2111) is provided in the middle of the cover plate (211).

8. The chassis module lifting and locking device according to claim 7, characterized in that: The second gap (2111) is U-shaped.

9. The chassis module lifting and locking device according to claim 1, characterized in that: The module (1) is slidably connected to the chassis (2). Both sides of the module (1) are provided with slide rails (11) extending outward. The upper surface of the chassis (2) is provided with a slide groove (23) that cooperates with the slide rails (11).

10. The chassis module lifting and locking device according to claim 9, characterized in that: The slide groove (23) is provided with a third positioning hole (231) that corresponds to and cooperates with the locking pin (33). The first positioning hole (22) and the third positioning hole (231) are coaxially arranged.

Images