A linkage type locking device of a chassis module

Abstract

The utility model discloses a linkage type locking device of case module, both sides of the case are equipped with the mounting groove, be equipped with locking mechanism in the mounting groove, and the locking mechanism includes the middle axle, and the front wedge, the middle wedge and the tail wedge are equipped in proper order and abut on the middle axle, and the middle axle is fixedly connected with the inner wall of the mounting groove, and the middle wedge can slide up and down relative to the middle axle, and the front end of the middle axle is hinged with the lever, and the lever can rotate relative to the case, and the lever front end of both sides is connected through the connecting rod, and the module is equipped with the locking groove, and the locking groove includes the deep groove and the shallow groove, and the arc transition surface is equipped between the deep groove and the shallow groove, and the lever is equipped with the hook part, and the hook part stretches into the locking groove, and the round head part is equipped on the hook part, and the round head part helps to push when abutting with the arc transition surface, and the round head part helps to pull when abutting with the inner wall of the side of the deep groove away from the arc transition surface, and the linkage of both sides locking mechanism is realized through the connecting rod, and the module is clamped or loosened simultaneously, and the operation efficiency is improved.

Description

Technical Field

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

[0002] Locking devices are used to lock modules inside the chassis to ensure that the modules will not shift or loosen during operation. For example, a wedge-shaped locking device with three wedge blocks disclosed in Chinese Utility Model Patent Application (authorization announcement number: CN220956294U) includes a guide rod, on which a fixed block, a lifting block, a sliding block, and a guide block are sequentially arranged. The fixed block is fixed to one end of the guide rod, and the lifting block and the sliding block are movably arranged on the guide rod. The two ends of the lifting block are symmetrically provided with first wedge-shaped surfaces, and the fixed block and the sliding block are each provided with second wedge-shaped surfaces at the ends opposite to the lifting block. The guide block is provided with a through groove, which is movably arranged on the guide block. The guide block is fixed to the guide rod and cannot rotate. One end of the guide rod has a threaded hole, and an adjusting bolt is located on the outer side of the guide block. The adjusting bolt connects to the threaded hole via a through groove. A connecting screw hole is located on the side wall of the guide rod, and an annular groove is provided around the side wall of the adjusting bolt. A limit screw is connected to the connecting screw hole, with its tail end located in the annular groove. This prevents the adjusting bolt and guide block from falling off the guide rod, avoiding bolt loss and improving the efficiency of module assembly and disassembly. Because the guide block does not rotate with the adjusting bolt, the guide block... The guide block moves linearly along the guide rod towards the lifting block side. The linearly moving guide block will drive the sliding block to move linearly along the guide rod. Since the fixed block is fixedly connected to the guide rod, the first wedge-shaped surfaces at both ends of the lifting block will abut against the second wedge-shaped surfaces of the fixed block and the sliding block, respectively. Under the squeezing action of the second wedge-shaped surfaces on both sides, the lifting block will be lifted up, thereby clamping and positioning the module. The rotating screw drives the wedge block to move along the inclined surface of the fixed seat, and the height compensation gap is used to achieve locking. In order to ensure the stability of locking, locking devices are usually set on both sides of the chassis. However, the wedge-shaped locking device of the above-mentioned three-section wedge block requires the operator to operate the locking devices on both sides separately to tighten the adjusting bolts when locking, and to loosen the adjusting bolts in turn when unlocking. This process is time-consuming and laborious, and the operation efficiency is low. In addition, when the module needs to be pulled out of the chassis, the operator often needs to manually pull out the module, which may require a lot of force to pull out the module. The operation is inconvenient. Therefore, it is necessary to improve it. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of existing technologies by providing a linkage locking device for chassis modules. This device has a simple and reasonable structure and is easy to operate. The linkage between the locking mechanisms on both sides is achieved by the connecting rod driving the lever action, which simultaneously clamps or releases the module. In addition, the lever also provides the functions of pushing and pulling. In this utility model, the pushing and locking actions, as well as the pulling and unlocking actions, are carried out simultaneously, which facilitates the installation and disassembly of the module and greatly improves the operating efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a linkage locking device for a chassis module, used for installing the module and the chassis. The chassis has mounting slots on both sides, and a locking mechanism is installed within each slot. The locking mechanism includes a central shaft, on which a front wedge, a middle wedge, and a tail wedge are sequentially mounted. The upper end of the central shaft is fixedly connected to the inner wall of the mounting slot. The middle wedge can slide up and down relative to the central shaft. A lever is hinged to the front end of the central shaft, and the lever can rotate relative to the chassis. The front ends of the levers located on both sides of the chassis are connected by connecting rods to achieve linkage. The block is provided with a locking groove, which includes a deep groove and a shallow groove, with an arc transition surface between the deep groove and the shallow groove. The lever is provided with a hook that extends into the locking groove. The hook is provided with a round head that abuts against the locking groove. Pressing down the connecting rod causes the lever to rotate downward, and the round head abuts against the arc transition surface, generating a pushing force. At the same time, the middle wedge block moves down and abuts tightly against the module. Lifting up the connecting rod causes the lever to rotate upward, and the round head abuts against the inner wall of the deep groove on the side away from the arc transition surface, generating a pulling force. At the same time, the middle wedge block moves up, creating a gap between the middle wedge block and the module.

[0006] Furthermore, the rear end of the lever is provided with a cam portion, which is hinged to the front end of the central shaft.

[0007] Furthermore, the rear end of the lever is provided with a U-shaped notch, which is recessed inwards towards the inside of the lever, and the U-shaped notch makes the rear end of the lever hook-shaped and forms the hook portion.

[0008] Furthermore, the module is provided with receiving grooves on both sides, the receiving grooves are used to receive the locking mechanism, and the front end of the receiving groove is provided with the locking groove.

[0009] Furthermore, the upper end of the central shaft is fixedly connected to the upper inner wall of the mounting groove by a number of screws, the chassis is provided with a number of first through holes for the screws to pass through, and the central shaft is provided with a number of second through holes for the screws to pass through.

[0010] Furthermore, the front wedge block is provided with a first groove, the middle wedge block is provided with a second groove, and the tail wedge block is provided with a third groove. The central shaft passes through the first groove, the second groove, and the third groove in sequence along the axial direction.

[0011] Furthermore, connecting grooves are provided on both sides of the central shaft, and the upper ends of the first groove, the second groove and the third groove are provided with limiting protrusions that cooperate with the connecting grooves.

[0012] Furthermore, the upper ends of the inner sidewalls of the first, second, and third grooves are bent inward to form the limiting protrusions.

[0013] Furthermore, the tail wedge block has a first washer and a screw at its rear end, and a plurality of elastic washers are provided between the first washer and the screw. The tail wedge block has a square cross-section, and the first washer is a square washer.

[0014] Furthermore, a second washer is provided at the front end of the front wedge block, the cross-section of the front wedge block is square, and the second washer is a square washer.

[0015] The beneficial effects of this utility model are as follows: When a module needs to be inserted, the operator needs to lift the connecting rod. This action will cause the lever connected to it to rotate upward. The upward rotation of the lever pulls the locking mechanism outward, causing the middle wedge block located therein to move upward relative to the central axis. At this time, it is convenient to insert the module because after the central axis moves upward, a gap will be formed between the middle wedge block and the receiving groove, allowing for smoother module insertion. After inserting the module, the operator needs to press down the connecting rod. This action will cause the lever to rotate downward. During the downward rotation of the lever, the round head on the lever will gradually abut against the arc transition surface, thereby generating a pushing force to push the module from the outside to the inside. At the same time, the cam part on the lever will also abut against the second washer and push inward together, causing the middle wedge block to move downward relative to the central axis until it is tightly abutted against the bottom of the receiving groove. The gap formed between the middle wedge block and the receiving groove is eliminated, and the module is locked in the casing. It should be noted that the pushing and locking actions are performed simultaneously, greatly improving operational efficiency. When the module needs to be pulled out, the operator lifts the connecting rod again, causing the lever to rotate upwards. The round head on the lever gradually abuts against the inner wall of the outer side of the deep groove, thereby generating a pulling force to pull the module out from the inside. In this embodiment, the outer side of the deep groove refers to the side away from the arc transition surface, and the inner side of the deep groove refers to the side close to the arc transition surface. At the same time, the lever rotates upwards and pulls the locking mechanism outwards, causing the middle wedge block located therein to move upwards relative to the central axis. The middle wedge block and the receiving groove form a gap again, releasing the module and unlocking it. The pulling and unlocking actions are also performed simultaneously. The connecting rod drives the lever to achieve linkage between the locking mechanisms on both sides, which simultaneously clamps or releases the module, simplifying the operation process, making it convenient to operate, and greatly improving the efficiency and user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the locking mechanism;

[0018] Figure 3 This is an exploded view of the locking mechanism;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 5 yes Figure 4 Enlarged structural diagram at point A;

[0021] Figure 6 This is a cross-sectional structural diagram of the lever used to assist in lifting;

[0022] Figure 7 yes Figure 6 Enlarged structural diagram at point B;

[0023] Figure 8 This is a cross-sectional structural diagram of the lever-assisted propulsion mechanism;

[0024] Figure 9 This is a structural diagram of the chassis;

[0025] Figure 10 This is a structural diagram of the module.

[0026] Figures 1-10 In the middle: 1. Module; 11. Receiving groove; 111. Locking groove; 1111. Deep groove; 1112. Shallow groove; 1113. Arc transition surface; 2. Chassis; 21. Mounting groove; 22. First through hole; 3. Locking mechanism; 31. Central shaft; 311. Connecting groove; 312. Second through hole; 32. Front wedge; 321. First groove; 322. First wedge surface; 33. Middle wedge; 331. Second groove; 332. Third wedge surface; 333. Fourth wedge surface; 34. Tail wedge; 341. Third groove; 342. Second wedge surface; 35. First washer; 36. Screw; 37. Elastic washer; 38. Second washer; 39. Lever; 391. U-shaped notch; 392. Hook; 3921. Round head; 393. Cam; 4. Limiting protrusion; 5. Connecting rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1-10 The illustrated linkage locking device for a chassis module is used to lock module 1 to chassis 2, ensuring the stability of module 1 within chassis 2 and preventing module 1 from loosening or falling off due to vibration or other external forces during use. Furthermore, this linkage locking device for a chassis module also provides a pushing and pulling function, facilitating the installation and disassembly of module 1 and significantly improving work efficiency. Specifically, see [reference needed]. Figure 9 The chassis 2 has mounting slots 21 on both sides, and a locking mechanism 3 is installed in each mounting slot 21. (See attached document.) Figures 2-3The locking mechanism 3 includes a central shaft 31, on which a front wedge 32, a middle wedge 33, and a tail wedge 34 are respectively provided. The front wedge 32 and the tail wedge 34 are respectively located at both ends of the middle wedge 33. The upper end of the central shaft 31 is fixedly connected to the upper inner wall of the mounting groove 21 by a plurality of screws. Specifically, the housing 2 is provided with a plurality of first through holes 22 for the screws to pass through, and the central shaft 31 is provided with a plurality of second through holes 312 for the screws to pass through. The front wedge 32 is provided with a first groove 321, the middle wedge 33 is provided with a second groove 331, and the tail wedge 34 is provided with a third groove 341. The central shaft 31 passes through the first groove 321, the second groove 331, and the third groove 341 sequentially along the axial direction. (See reference...) Figure 3 The central shaft 31 has connecting grooves 311 on both sides of its side walls. The upper ends of the first groove 321, the second groove 331, and the third groove 341 are provided with limiting protrusions 4 that cooperate with the connecting grooves 311. The upper ends of the inner side walls of the first groove 321, the second groove 331, and the third groove 341 are bent inward to form the limiting protrusions 4. The front wedge block 32 is provided with a first wedge surface 322 that abuts against the middle wedge block 33. The tail wedge block 34 is provided with a second wedge surface 342 that abuts against the middle wedge block 33. The middle wedge block 33 is provided with a third wedge surface 332 that abuts against the first wedge surface 322. The middle wedge block 33 is also provided with a fourth wedge surface 333 that abuts against the second wedge surface 342. The middle wedge block 33 can slide up and down relative to the central shaft 31.

[0029] Specifically, see Figure 3 The tail wedge block 34 is provided with a first washer 35 and a screw 36 at its rear end. A plurality of elastic washers 37 are provided between the first washer 35 and the screw 36, which can be compressed to form a space for the locking mechanism 3 to move. In addition, the elastic washers 37 can also play a role in buffering and shock absorption.

[0030] Specifically, see Figure 3 The front end of the front wedge 32 is provided with a second washer 38. Both the front wedge 32 and the tail wedge 34 have square cross-sections. Preferably, the first washer 35 and the second washer 38 are both square washers, so that the first washer 35 can better fit the cross-section of the tail wedge 34, and the second washer 38 can better fit the cross-section of the front wedge 32. The first washer 35 and the second washer 38 can effectively play a buffering role, reduce wear, and extend service life. The central shaft 31 passes through the second washer 38, the front wedge 32, the central wedge 33, and the tail wedge 34 from front to back. The front end of the central shaft 31 extends out of the second washer 38 and is hinged to a lever 39, which can rotate relative to the chassis 2.

[0031] Specifically, the front ends of the levers 39 located on both sides of the chassis 2 are connected by connecting rods 5, thereby ensuring that the levers 39 on both sides can operate synchronously during movement. This design not only effectively improves the coordination of the entire system, but also significantly improves work efficiency. It should be noted that in this embodiment, the front end refers to the end facing the operator.

[0032] Specifically, the rear end of the lever 39 is hinged to the central shaft 31, see reference. Figure 10 Both sides of the module 1 are provided with receiving grooves 11 that correspond to and cooperate with the locking mechanism 3. The receiving grooves 11 are used to receive the locking mechanism 3. The front end of the receiving groove 11 is provided with a locking groove 111 that cooperates with the lever 39. The locking groove 111 includes a deep groove 1111 and a shallow groove 1112. The deep groove 1111 and the shallow groove 1112 are arranged sequentially from the front end to the rear end of the module 1. The deep groove 1111 and the shallow groove 1112 are connected. An arc transition surface 1113 is provided between the deep groove 1111 and the shallow groove 1112.

[0033] Preferably, see Figures 2-3 The rear end of the lever 39 is also provided with a U-shaped notch 391 that is recessed inward. The U-shaped notch 391 makes the rear end of the lever 39 hook-shaped and forms a hook portion 392. The rear end of the lever 39 is also provided with a cam portion 393, which is hinged to the front end of the central shaft 31.

[0034] Specifically, see Figures 4-8 The hook 392 extends into the locking groove 111 and engages with it. The hook 392 is provided with a round head 3921 that abuts against the locking groove 111. The design of the round head 3921 can effectively reduce wear and extend service life.

[0035] The working principle of this utility model is as follows: When module 1 needs to be inserted, the operator needs to lift the connecting rod 5. This action will cause the lever 39 connected to it to rotate upward. The lever 39 rotates upward and pulls the locking mechanism 3 outward, so that the middle wedge block 33 located therein moves upward relative to the central axis 31. At this time, it is convenient to insert module 1, because after the central axis 31 moves upward, a gap will be formed between the middle wedge block 33 and the receiving groove 11, which can insert module 1 more smoothly. After inserting module 1, the operator needs to press down the connecting rod 5. This action will cause the lever 39 to rotate downward. During the downward rotation of the lever 39, the round head 3921 on the lever 39 will gradually abut against the arc transition surface 1113, such as Figure 8 As shown, this generates a thrust, pushing module 1 from the outside in. Simultaneously, the cam 393 on lever 39 abuts against the second washer 38 and pushes inward together, causing the middle wedge block 33 to shift downward relative to the central axis 31. Figure 5As shown, until it is tightly abutted against the bottom of the receiving groove 11, the gap formed between the middle wedge block 33 and the receiving groove 11 is eliminated, and the module 1 is locked in the chassis 2. It should be noted that the pushing and locking actions are performed simultaneously, which greatly improves the operating efficiency. When it is necessary to pull out the module 1, the operator lifts the connecting rod 5 again, causing the lever 39 to rotate upward. The round head 3921 on the lever 39 will gradually abut against the inner wall of the outer side of the deep groove 1111, as shown. Figure 4 and Figure 6 As shown, this generates a pulling force, pulling module 1 outward from the inside. In this embodiment, the outer side of the deep groove 1111 refers to the side away from the arc transition surface 1113, and the inner side of the deep groove 1111 refers to the side close to the arc transition surface 1113. At the same time, the lever 39 rotates upward and pulls the locking mechanism 3 outward, causing the middle wedge block 33 located therein to move upward relative to the central axis 31, and a gap is formed again between the middle wedge block 33 and the receiving groove 11, as shown. Figure 7 As shown, the relaxation module 1 serves to unlock the device. The two actions of pulling out and unlocking are performed simultaneously. The connecting rod 5 drives the lever 39 to achieve the linkage of the locking mechanisms 3 on both sides, which simultaneously clamps or releases module 1. This simplifies the operation process, makes it convenient to operate, and greatly improves the efficiency and user experience.

[0036] 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 linkage locking device for a chassis module, used for the installation of a module (1) and a chassis (2), characterized in that: The chassis (2) has mounting slots (21) on both sides. A locking mechanism (3) is provided in the mounting slot (21). The locking mechanism (3) includes a central shaft (31). A front wedge (32), a middle wedge (33), and a tail wedge (34) are arranged on the central shaft (31) in sequence. The upper end of the central shaft (31) is fixedly connected to the inner wall of the mounting slot (21). The middle wedge (33) can slide up and down relative to the central shaft (31). A lever (39) is hinged to the front end of the central shaft (31). The lever (39) can rotate relative to the chassis (2). The front ends of the levers (39) on both sides of the chassis (2) are connected by connecting rods (5) to achieve linkage. The module (1) is provided with a locking groove (111). The locking groove (111) includes a deep groove (1111) and a shallow groove (1112). An arc transition surface (1113) is provided between (1111) and the shallow groove (1112). The lever (39) is provided with a hook (392). The hook (392) extends into the locking groove (111). The hook (392) is provided with a round head (3921) that abuts against the locking groove (111). Pressing down the connecting rod (5) causes the lever (39) to rotate downward. The round head (3921) abuts against the arc transition surface (1113) to generate a pushing force. At the same time, the middle wedge (33) moves down and abuts tightly against the module (1). Lifting up the connecting rod (5) causes the lever (39) to rotate upward. The round head (3921) abuts against the inner wall of the deep groove (1111) on the side away from the arc transition surface (1113) to generate a pulling force. At the same time, the middle wedge (33) moves up, so that a gap is formed between the middle wedge (33) and the module (1).

2. The linkage locking device for a chassis module according to claim 1, characterized in that: The lever (39) is further provided with a cam (393) at its rear end, and the cam (393) is hinged to the front end of the central shaft (31).

3. The linkage locking device for a chassis module according to claim 1, characterized in that: The rear end of the lever (39) is also provided with a U-shaped notch (391), which is recessed into the inside of the lever (39). The U-shaped notch (391) makes the rear end of the lever (39) hook-shaped and forms the hook (392).

4. The linkage locking device for a chassis module according to claim 1, characterized in that: The module (1) has a receiving groove (11) on both sides. The receiving groove (11) is used to receive the locking mechanism (3). The front end of the receiving groove (11) is provided with the locking groove (111).

5. The linkage locking device for a chassis module according to claim 1, characterized in that: The upper end of the central shaft (31) is fixedly connected to the inner wall of the upper end of the mounting groove (21) by a number of screws. The housing (2) is provided with a number of first through holes (22) for the screws to pass through, and the central shaft (31) is provided with a number of second through holes (312) for the screws to pass through.

6. The linkage locking device for a chassis module according to claim 1, characterized in that: The front wedge (32) is provided with a first groove (321), the middle wedge (33) is provided with a second groove (331), the tail wedge (34) is provided with a third groove (341), and the central shaft (31) passes through the first groove (321), the second groove (331) and the third groove (341) in sequence along the axial direction.

7. The linkage locking device for a chassis module according to claim 6, characterized in that: Connecting grooves (311) are provided on both sides of the central shaft (31), and the upper ends of the first groove (321), the second groove (331) and the third groove (341) are provided with limiting protrusions (4) that cooperate with the connecting grooves (311).

8. The linkage locking device for a chassis module according to claim 7, characterized in that: The upper ends of the inner sidewalls of the first groove (321), the second groove (331) and the third groove (341) are bent inward to form the limiting protrusion (4).

9. The linkage locking device for a chassis module according to claim 1, characterized in that: The tail wedge (34) is provided with a first washer (35) and a screw (36) at its rear end. A plurality of elastic washers (37) are provided between the first washer (35) and the screw (36). The tail wedge (34) has a square cross-section and the first washer (35) is a square washer.

10. The linkage locking device for a chassis module according to claim 1, characterized in that: The front end of the front wedge (32) is provided with a second washer (38), the cross-section of the front wedge (32) is square, and the second washer (38) is a square washer.

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