Locking strip facilitating positioning and plugging
By integrating the handle and locking components into the locking strip, the problems of precise positioning of the chassis modules and cumbersome plugging and unplugging are solved, enabling fast and stable module operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU ZHONGLI AEROSPACE TECHNOLOGY CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
The existing chassis module's separate locking and plugging/unplugging design results in poor limit accuracy, cumbersome and inconsistent plugging/unplugging, making it difficult to meet the needs of efficient operation and maintenance.
Design a locking bar that integrates a handle and locking components, including a guide rail, slider and spring structure. The locking and unlocking operations are integrated through the handle operation. The hexagonal head and the chassis module are rigidly limited, and the guide structure ensures fast and accurate positioning.
It enables rapid and accurate module positioning and convenient plugging and unplugging, improving operational efficiency, reducing operational difficulty and the risk of equipment damage, and is suitable for scenarios requiring frequent plugging and unplugging.
Smart Images
Figure CN224538499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical locking devices, and in particular to a locking bar that is easy to limit and insert / remove. Background Technology
[0002] During the installation and maintenance of chassis modules, precise positioning and ease of insertion and removal are core requirements for ensuring efficient equipment operation and maintenance. In existing technologies, the locking and insertion / removal functions of chassis modules are usually achieved by separate locking strips and pullers: the locking strip is responsible for fixing and locking the module, while the puller is used for the insertion and removal operation of the module. The two need to be installed separately and work together.
[0003] This separate design has significant drawbacks: First, the limiting function is missing or scattered, requiring manual alignment when inserting modules into the chassis, which can easily lead to poor contact due to installation deviations, especially in scenarios with multiple modules densely arranged, where precise positioning is difficult; Second, the insertion and removal operation is cumbersome, requiring the locking strip to be loosened with a tool before the module can be removed using a puller, requiring both hands to work together, resulting in extremely poor flexibility in confined spaces, and the module is prone to jamming or damage due to uneven force; Third, the continuity between locking and insertion / removal is insufficient, as the module lacks temporary limiting support after the locking strip is loosened, making it prone to shaking during insertion and removal, further increasing the difficulty of operation and affecting maintenance efficiency.
[0004] With the increasing integration of equipment, higher requirements are placed on the rapid positioning, convenient plugging and unplugging, and reliable locking of chassis modules. The existing separate structure can no longer meet the actual needs of efficient operation and maintenance. Therefore, a locking strip that is easy to position and plug and unplug is proposed to solve the above problems. Utility Model Content
[0005] This utility model overcomes the shortcomings of the prior art and provides a locking strip that is easy to limit and insert. To achieve the above objective, the technical solution adopted by this utility model is as follows: a locking strip that is easy to limit and insert, comprising: a handle and locking components disposed at both ends of the handle, the handle comprising a pull-out portion and a connecting portion, and the locking components being connected to the handle through the connecting portion;
[0006] The locking assembly includes a guide rail and a slider disposed outside the guide rail. The slider includes a front slider and a rear slider. A spring and a pull-out screw are disposed inside the front slider. The pull-out screw is disposed inside the spring. The connecting part includes a connecting groove and a rivet. The pull-out screw extends forward from the front slider into the connecting groove. The rivet passes through the corresponding hole of the connecting groove and the pull-out screw to rivet the pull-out screw to the connecting groove. The pull-out screw extends backward from the front fixed slider and is inserted into the guide rail. A fixing assembly is disposed on the rear slider. The fixing assembly includes a locking screw and a washer. The head of the locking screw has a hexagonal structure. The locking screw is connected to the guide rail. The washer is disposed between the locking screw and the guide rail.
[0007] When locking is required, hold the pull-out part and pull it down. The washer on the connecting part rotates around the rivet as an axis. When rotating, it drives the pull-out screw to compress the spring, thereby pushing the front slider to move backward along the guide rail to achieve locking.
[0008] In a preferred embodiment of the present invention, the locking assembly further includes a central slider, which is disposed between the front slider and the rear slider.
[0009] In a preferred embodiment of this utility model, the contact portion between the middle slider and the front slider is provided with a ramp, and the contact portion between the middle slider and the rear slider is provided with a ramp, and the slopes of the two oppositely arranged ramps are matched.
[0010] In a preferred embodiment of this utility model, the slope of the ramp is set such that the middle slider, under the action of force, synchronously drives the front slider and the rear slider to generate displacement through contact with the ramp of the front slider and the rear slider.
[0011] In a preferred embodiment of this utility model, the connecting groove structure is a groove structure, the inner wall of the groove is in close contact with the surface of the pull-out screw to form a guiding fit, and the depth and width of the groove can accommodate the end displacement of the pull-out screw when the pull-out part is pulled down and the connecting part is rotated.
[0012] In a preferred embodiment of this utility model, the gasket is a disc-shaped gasket.
[0013] In a preferred embodiment of this utility model, the compression distance, rotation angle and locking stroke of the locking components disposed at both ends of the handle are consistent.
[0014] In a preferred embodiment of this utility model, the two ends of the spring are provided with flattened structures. The flattened structures are in contact with the inner wall of the front slider and the limiting part of the pull-out screw to increase the contact area and prevent the spring from deflecting when subjected to force.
[0015] In a preferred embodiment of the present invention, the connecting part further includes a pad, which is disposed on the contact surface between the connecting groove and the front end slider.
[0016] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0017] (1) This utility model sets the head of the locking screw to a hexagonal structure. The hexagonal head can fit well with the mounting surface of the chassis module, realize the rigid limit when the locking strip is installed, and avoid the offset and shaking during the insertion of the locking strip. At the same time, with the guide structure of the guide rail and each slider, it ensures that the locking strip is quickly and accurately in place, which solves the problem of scattered limit and difficult alignment of the traditional split locking strip structure.
[0018] (2) This utility model integrates the functions of handle puller and locking strip. Lifting the handle can unlock and provide pulling force simultaneously. No tools are needed and the module can be pulled out with one hand. When inserted, the module naturally enters the position along the limiting structure. Pressing the handle will lock it in place, realizing one-button operation of "insertion-limiting-locking" and "unlocking-pulling out", which greatly improves the insertion and removal efficiency. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0020] Figure 1 This is a top view of the locking strip according to a preferred embodiment of the present invention;
[0021] Figure 2 This is an exploded view of the locking strip according to a preferred embodiment of the present invention;
[0022] Figure 3 This is a cross-sectional view of the locking assembly according to a preferred embodiment of the present invention;
[0023] Figure 4 This is an exploded view of the slider of a preferred embodiment of the present invention;
[0024] Figure 5 This is a structural diagram of the locking screw according to a preferred embodiment of the present invention.
[0025] In the diagram: 1. Handle; 10. Pull-out part; 11. Connecting part; 110. Connecting groove; 111. Rivet; 112. Pad; 2. Locking assembly; 20. Guide rail; 21. Front slider; 210. Spring; 211. Pull-out screw; 22. Rear slider; 23. Middle slider; 230. Ramp; 24. Locking screw; 240. Hexagonal structure; 25. Washer. Detailed Implementation
[0026] 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.
[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0029] like Figures 1 to 5 As shown, a locking bar that is easy to limit and insert includes: a handle 1 and locking components 2 disposed at both ends of the handle 1. The compression distance, rotation angle and locking stroke of the locking components 2 disposed at both ends of the handle 1 are consistent.
[0030] Specifically, the handle 1 includes a pull-out portion 10 and a connecting portion 11. The locking assembly 2 is connected to the handle 1 via the connecting portion 11. The locking assembly 2 includes a guide rail 20 and a slider disposed outside the guide rail 20. The slider includes a front slider 21 and a rear slider 22. A spring 210 and a pull-out screw 211 are disposed inside the front slider 21. The pull-out screw 211 is disposed inside the spring 210. The connecting portion 11 includes a connecting groove 110, a rivet 111, and a pad 112. The pad 112 is disposed on the contact surface between the connecting groove 110 and the front slider 21. The pull-out screw 211 extends forward from the front slider 21 into the connecting groove 110. The rivet 111 passes through the corresponding part of the connecting groove 110 and the pull-out screw 211. The hole rivets the pull-out screw 211 to the connecting groove 110. The pull-out screw 211 extends from the front fixed slider and is inserted into the guide rail 20. The rear slider 22 is provided with a fixing component, which includes a locking screw 24 and a washer 25. The head of the locking screw 24 is a hexagonal structure 240. By setting the head of the locking screw 24 to a hexagonal structure 240, the hexagonal head can fit well with the mounting surface of the chassis module, achieving rigid limiting during the installation of the locking strip and avoiding offset and shaking during the insertion of the locking strip. At the same time, in conjunction with the guide structure of the guide rail 20 and each slider, it ensures that the locking strip is quickly and accurately positioned, solving the problems of scattered limiting and difficult alignment of the traditional split locking strip structure.
[0031] The locking screw 24 is connected to the guide rail 20, and the washer 25 is placed between the locking screw 24 and the guide rail 20. When locking is required, the pull-out part 10 is held and pulled down. The washer 25 on the connecting part 11 rotates around the rivet 111. When rotating, the pull-out screw 211 compresses the spring 210, thereby pushing the front slider 21 to move backward along the guide rail 20 to achieve locking. By setting the head of the locking screw 24 to a hexagonal structure 240, the hexagonal head can fit well with the mounting surface of the chassis module, achieving rigid limiting during the installation of the locking strip and avoiding offset and shaking during the insertion of the locking strip. At the same time, in conjunction with the guide structure of the guide rail 20 and each slider, it ensures that the locking strip is quickly and accurately positioned, solving the problems of scattered limiting and difficult alignment of the traditional split locking strip structure.
[0032] In a preferred embodiment of this utility model, the locking assembly 2 further includes a middle slider 23, which is disposed between the front slider 21 and the rear slider 22. The contact portion between the middle slider 23 and the front slider 21 is provided with a ramp 230, and the contact portion between the middle slider 23 and the rear slider 22 is also provided with a ramp 230. The slopes of the two opposing ramps 230 are adapted to each other. The slope of the ramps 230 is designed to allow the middle slider 23, under force, to synchronously drive the front slider 21 and the rear slider 22 to move by contacting the ramps 230 of the front slider 21 and the rear slider 22. Through the adapted ramp 230 design of the contact portion between the middle slider 23 and the front and rear sliders 22, the middle slider 23 can effectively control the movement of the front and rear sliders 22 when under force. Synchronous drive eliminates the need to apply force to the front and rear sliders 22 separately, significantly improving the efficiency of slider displacement adjustment and ensuring rapid response of locking or unlocking actions. In addition, the slope of the ramp 230 is adapted to ensure that the displacement and direction of movement of the front slider 21 and the rear slider 22 are precisely matched after the middle slider 23 is subjected to force, avoiding locking deviation or module positioning offset caused by inconsistent actions of the two sliders, and enhancing the stability of the device operation. At the same time, the ramp 230 design utilizes the principle of force saving of the inclined plane, and the middle slider 23 only requires a small driving force to drive the front and rear sliders 22 to produce the required displacement through the ramp 230, reducing the force required when operating the handle 1, making locking or unlocking operations easier, especially suitable for scenarios with frequent plugging and unplugging maintenance.
[0033] In a preferred embodiment of this utility model, the connecting groove 110 has a groove structure. The inner wall of the groove is in close contact with the surface of the pull-out screw 211, forming a guiding fit. The depth and width of the groove can accommodate the end displacement of the pull-out screw 211 when the pull-out part 10 is pulled down and the connecting part 11 rotates. The close contact between the inner wall of the groove and the surface of the pull-out screw 211 forms a reliable guiding fit. When the connecting part 11 rotates and the pull-out screw 211 moves, it can effectively constrain the displacement trajectory of the pull-out screw 211, preventing it from swaying or getting stuck. This ensures that the locking and unlocking actions are executed accurately according to the preset path, improving operational consistency. At the same time, the depth and width of the groove are designed to adapt to the end displacement requirements of the pull-out screw 211 when the pull-out part 10 is pulled down, providing sufficient movement space for the pull-out screw 211. This avoids action jamming or interference caused by space limitations, ensuring a smooth and continuous process of "handle 1 operation - connecting part 11 rotation - pull-out screw 211 movement - slider linkage", reducing operational resistance.
[0034] In a preferred embodiment of this utility model, the gasket 25 is a disc-shaped gasket 25. By adjusting the number of disc-shaped gaskets 25 and the depth of the locking screw 24, a uniform locking force and operating force are preset to ensure that the operating effect of different modules and different operators is consistent, avoiding module damage caused by uneven insertion and removal force. At the same time, the stable limiting state after locking can prevent vibration and loosening during equipment operation.
[0035] In a preferred embodiment of the present invention, the two ends of the spring 210 are provided with flattened structures. The flattened structures are in contact with the inner wall of the front slider 21 and the limiting part of the pull-out screw 211 to increase the contact area and prevent the spring 210 from deflecting when subjected to force.
[0036] The working principle of this utility model is as follows:
[0037] During installation and locking, the locking strip is aligned with the mounting position of the chassis module. Rigid positioning is achieved by the hexagonal head of the locking screw 24 on the rear slider 22 fitting against the mounting surface of the chassis module. This, combined with the guide structure of the guide rail 20 and each slider, ensures that the locking strip is quickly and accurately positioned. At this time, the pull-out part 10 of the handle 1 is pulled down, and the connecting part 11 rotates around the rivet 111, causing the pull-out screw 211 to compress the spring 210 inside the front slider 21. The spring 210 deforms under force, generating thrust, which pushes the front slider 21 to move backward along the guide rail 20. Simultaneously, under the transmission of force, the middle slider 23, through the matching ramp 230 of its contact part with the front slider 21 and the rear slider 22, synchronously drives the rear slider 22 to produce a corresponding displacement along the guide rail 20. The fixing component on the rear slider 22 moves backward accordingly, and finally, the locking is completed by the cooperation of the locking screw 24 with the chassis. Throughout the process, the compression distance, rotation angle, and locking stroke of the locking components 2 at both ends remain consistent, ensuring uniform and reliable locking.
[0038] During the unlocking and plugging / unplugging process, lift the pull-out part 10 of the handle 1 upwards, the connecting part 11 rotates in the opposite direction, and the pull-out screw 211 drives the front slider 21 to move forward along the guide rail 20 under the return force of the spring 210. The middle slider 23 moves forward accordingly, and the rear slider 22 is synchronously driven to move in the opposite direction through the ramp 230 structure, thus releasing the locking state. At this time, the module can be easily pulled out using the pull-out part 10 of the handle 1. Due to the guiding cooperation and synchronous action design of each component, the plugging / unplugging process is stable and without jamming.
[0039] Throughout the entire process, the disc-shaped gaskets 25 are adjusted in number and matched with the locking screws 24 in depth to ensure uniform locking force and operating force; the groove structure of the connecting groove 110 provides guidance and displacement space for the pull-out screw 211 to ensure continuous action; the flattened structure at both ends of the spring 210 avoids force deviation, further improving the stability and reliability of operation, and realizing integrated and efficient operation of limiting, locking and insertion / removal.
[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.
Claims
1. A locking strip that facilitates positioning and insertion / removal, characterized in that, Includes: a handle and locking components disposed at both ends of the handle, the handle including a pull-out portion and a connecting portion, the locking components being connected to the handle via the connecting portion; The locking assembly includes a guide rail and a slider disposed outside the guide rail. The slider includes a front slider and a rear slider. A spring and a pull-out screw are disposed inside the front slider. The pull-out screw is disposed inside the spring. The connecting part includes a connecting groove and a rivet. The pull-out screw extends forward from the front slider into the connecting groove. The rivet passes through the corresponding hole of the connecting groove and the pull-out screw to rivet the pull-out screw to the connecting groove. The pull-out screw extends backward from the front fixed slider and is inserted into the guide rail. A fixing assembly is disposed on the rear slider. The fixing assembly includes a locking screw and a washer. The head of the locking screw has a hexagonal structure. The locking screw is connected to the guide rail. The washer is disposed between the locking screw and the guide rail. When locking is required, hold the pull-out part and pull it down. The washer on the connecting part rotates around the rivet as an axis. When rotating, it drives the pull-out screw to compress the spring, thereby pushing the front slider to move backward along the guide rail to achieve locking.
2. The locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The locking assembly also includes a central slider, which is disposed between the front slider and the rear slider.
3. A locking strip for easy positioning and insertion / removal according to claim 2, characterized in that: The contact portion between the middle slider and the front slider is provided with a ramp, and the contact portion between the middle slider and the rear slider is provided with a ramp, with the slopes of the two opposite ramps being matched.
4. A locking strip for easy positioning and insertion / removal according to claim 3, characterized in that: The slope of the ramp is set so that when the middle slider is subjected to force, it can synchronously drive the front slider and the rear slider to move by contacting the ramp of the front slider and the rear slider.
5. A locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The connecting groove structure is a groove structure. The inner wall of the groove is in close contact with the surface of the pull-out screw to form a guiding fit. The depth and width of the groove can accommodate the end displacement of the pull-out screw when the pull-out part is pulled down and the connecting part is rotated.
6. A locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The gasket is a disc-shaped gasket.
7. A locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The locking components located at both ends of the handle have the same compression distance, rotation angle, and locking stroke.
8. A locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The spring has flattened surfaces at both ends, which are in contact with the inner wall of the front slider and the limiting part of the pull-out screw to increase the contact area and prevent the spring from deflecting when subjected to force.
9. A locking strip for easy positioning and insertion / removal according to claim 1, characterized in that: The connecting part also includes a pad, which is disposed on the contact surface between the connecting groove and the front end slider.