A self-locking clamp

The self-locking clamps enable automated clamping and stable transportation of circuit boards, solving the problem of circuit board damage due to friction during transportation and improving production efficiency and product quality.

CN224361742UActive Publication Date: 2026-06-16DONGGUAN JINGCHUANG ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINGCHUANG ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During the transportation of existing circuit boards, the boards are easily damaged by friction due to stacking, and traditional board insertion frames require manual operation, which cannot efficiently adapt to circuit boards of different specifications.

Method used

It adopts a self-locking clamp, including a fixing base, a clamping component and a spring-loaded component. The clamping component is driven by a cylinder to cooperate with the top plate to achieve automatic clamping and opening. It can adapt to the adaptive clamping of circuit boards of different thicknesses, avoid friction damage, and ensure the stability of the circuit board through the spring-loaded component.

Benefits of technology

It improves the stability and loading/unloading efficiency of circuit boards during transportation, adapts to different specifications of circuit boards, reduces manual operation, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224361742U_ABST
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Abstract

The utility model is suitable for circuit board transportation technical field provides a kind of self-locking clamp, including fixed base and cylinder, the bottom of fixed base is equipped with the limit block that is engaged with plug-in board frame, still include clamping assembly and rebound component, cylinder can realize the quick switching of automatic opening of clamping assembly and automatic clamping by the mode of cooperation with rebound component, greatly shorten the loading and unloading time of circuit board, to realize the automatic clamping of plug-in board frame to circuit board, improve the loading and unloading efficiency of circuit board on plug-in board frame, clamping assembly can complete the quick clamping of circuit board in plug-in board frame, avoid its to occur in the process of transportation and shake, to avoid its and adjacent circuit board or the collision or friction between plug-in board frame, ensure the stability of circuit board in the process of transportation, improve the product quality of circuit board, simultaneously, still can form self-adapting clamping to circuit board of different thickness, expand the application range of plug-in board frame.
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Description

Technical Field

[0001] This utility model belongs to the field of circuit board transportation technology, and in particular relates to a self-locking clip. Background Technology

[0002] During the manufacturing process of printed circuit boards (PCBs), they often need to be transferred. Existing conveyor racks typically stack or stand PCBs vertically, which can easily cause friction between adjacent boards, leading to damage and affecting production efficiency. Some conveyor racks can separate vertically placed PCBs with fixing strips, reducing wear between boards. However, wear between the fixing strips and the boards still exists. Furthermore, using the same conveyor rack for PCBs of different sizes is not feasible for efficient transport.

[0003] In the past, the locking of the plug-in frame was mainly achieved by manually tightening and loosening the wing screws. The structure was simple and the operation was easy to understand, but it required manual tightening and loosening, which was slow and could not meet the production capacity requirements. In addition, there was wear and tear between the fixing strip and the circuit board.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a self-locking clamp to overcome the shortcomings in current practical applications. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model embodiment is to provide a self-locking clip to solve the problems in the background technology mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-locking clamp includes a fixing base and a cylinder. The fixing base is equidistantly distributed on a plate frame. A limiting block that engages with the plate frame is installed at the bottom of the fixing base. The cylinder is mounted on the plate frame. The clamp also includes:

[0008] A clamping assembly is symmetrically and rotatably mounted on both sides of a fixed base. One end of the clamping assembly is connected to the output end of a cylinder, and the other end of the clamping assembly is engaged with a top plate fixed on a housing frame.

[0009] A spring-loaded assembly is symmetrically arranged on both sides of the fixed base, and the two ends of the spring-loaded assembly are respectively mounted on the clamping assembly and the fixed base.

[0010] As a further technical solution of this utility model, the clamping assembly includes clamping plates, a rotating shaft, and a rotary bearing. The rotating shaft passes through the fixed seat and is rotatably connected to the fixed seat. The clamping plates are symmetrically arranged on both sides of the fixed seat. The two clamping plates are respectively connected to the two ends of the rotating shaft. One end of the clamping plate cooperates with the top plate. The other end of the clamping plate is equipped with a rotary bearing connected to the cylinder. One end of the spring-loaded assembly is installed on the clamping plate.

[0011] As a further technical solution of this utility model, one end of the clamping piece is provided with a clamping head, which adopts an arc-shaped structure, and the clamping head cooperates with the top piece to complete the clamping of the circuit board.

[0012] As a further technical solution of this utility model, a second rotating shaft is also provided between the clamps distributed on both sides of the fixed base, and the two ends of the second rotating shaft are respectively connected to two clamps on the same fixed base.

[0013] As a further technical solution of this utility model, the rebound assembly includes a locking pin one, a locking pin two, and a spring. The locking pin one is fixed on both sides of the fixing base, the locking pin two is fixed on the clamping plate, and the two ends of the spring are respectively installed on the locking pin one and the locking pin two.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In its initial state, the spring-loaded component uses its own elastic force to drive the clamping component to cooperate with the top plate, thereby quickly clamping the circuit board in the insertion frame. This ensures the stable placement of any circuit board in the insertion frame, preventing it from shaking during transportation and thus avoiding collisions or friction between it and adjacent circuit boards or the insertion frame. This ensures the stability of the circuit board during transportation, improves the product quality of the circuit board, and can also form adaptive clamping for circuit boards of different thicknesses. It can adapt to various specifications of circuit boards without manual adjustment, expanding the application range of the insertion frame.

[0016] When the circuit board needs to be disassembled, the cylinder can drive the clamping component to rotate on the fixed seat by extending and retracting, so that one end of the clamping component separates from the top plate and releases the clamping state on the circuit board. The cylinder, in conjunction with the spring-back component, can realize the rapid switching between automatic opening and automatic clamping of the clamping component, which greatly shortens the loading and unloading time of the circuit board, thereby realizing the automated clamping of the circuit board by the insertion frame and improving the loading and unloading efficiency of the circuit board on the insertion frame.

[0017] Furthermore, the mounting brackets on the insert frame are evenly distributed, allowing for flexible adjustment of the installation density based on the number of circuit boards, achieving efficient space utilization and increasing the amount of goods transported per shipment.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation of the self-locking clip provided in an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the self-locking clip provided in an embodiment of the present invention.

[0021] Figure 3 A bottom view of the structure of the self-locking clip provided in an embodiment of this utility model.

[0022] Figure 4 A side view of the structure of the self-locking clip provided in an embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the self-locking clip in the released state according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the self-locking clips on the insert frame securing the circuit board.

[0025] Reference numerals: 1-Fixed base, 2-Clamping assembly, 21-Clamping piece, 22-Spindle 1, 23-Clamping head, 24-Rotary bearing, 25-Spindle 2, 3-Rebound assembly, 31-Locking pin 1, 32-Locking pin 2, 33-Spring, 4-Limiting block, 5-Insertion plate frame, 6-Top piece. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] like Figures 1 to 6 As shown, a self-locking clamp provided as an embodiment of this utility model includes a fixing base 1 and a cylinder. The fixing base 1 is equidistantly distributed on the insert plate frame 5. A limiting block 4 that engages with the insert plate frame 5 is installed at the bottom of the fixing base 1. The cylinder is installed on the insert plate frame 5. The clamp also includes:

[0029] The clamping assembly 2 is symmetrically and rotatably mounted on both sides of the fixed base 1. One end of the clamping assembly 2 is connected to the output end of the cylinder, and the other end of the clamping assembly 2 is engaged with the top piece 6 fixed on the insert frame.

[0030] The spring-loaded assembly 3 is symmetrically arranged on both sides of the fixed base 1, and its two ends are respectively installed on the clamping assembly 2 and the fixed base 1. In the initial state, the spring-loaded assembly 3 drives the clamping assembly 2 to cooperate with the top piece 6 through its own elastic force, thereby completing the rapid clamping of the circuit board in the insertion frame 5, ensuring the stable placement of any circuit board in the insertion frame 5, avoiding shaking during transportation, and thus avoiding collision or friction between the circuit board and adjacent circuit boards or the insertion frame 5, ensuring the stability of the circuit board during transportation, improving the product quality of the circuit board, and at the same time, it can also form adaptive clamping for circuit boards of different thicknesses, adapting to various specifications of circuit boards without manual adjustment, thus expanding the application range of the insertion frame 5.

[0031] When the circuit board needs to be disassembled, the cylinder can drive the clamping component 2 to rotate on the fixed seat 1 by extending and retracting, so that one end of the clamping component 2 separates from the top piece 6 and releases the clamping state on the circuit board. The cylinder, in cooperation with the spring-back component 3, can realize the rapid switching between automatic opening and automatic clamping of the clamping component 2, which greatly shortens the loading and unloading time of the circuit board, thereby realizing the automated clamping of the circuit board by the insertion frame 5 and improving the loading and unloading efficiency of the circuit board on the insertion frame 5.

[0032] Furthermore, the mounting bases 1 on the insert frame 5 are evenly distributed, and the installation density can be flexibly adjusted according to the number of circuit boards, so as to achieve efficient use of space and increase the amount of goods transported at one time.

[0033] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the clamping assembly 2 includes a clamping piece 21, a rotating shaft 22, and a rotary bearing 24. The rotating shaft 22 passes through the fixed base 1 and is rotatably connected to the fixed base 1. The clamping pieces 21 are symmetrically arranged on both sides of the fixed base 1. The two clamping pieces 21 are respectively connected to the two ends of the rotating shaft 22. One end of the clamping piece 21 cooperates with the top piece 6. The other end of the clamping piece 21 is equipped with a rotary bearing 24 connected to the cylinder. One end of the spring-loaded assembly 3 is mounted on the clamping piece 21.

[0034] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, one end of the clamping piece 21 is provided with a clamping head 23. The clamping head 23 preferably adopts an arc-shaped structure, and the clamping head 23 cooperates with the top piece 6 to effectively clamp the circuit board.

[0035] In the initial state, the spring-loaded assembly 3 uses its own elastic force to drive the clamping piece 21 to cooperate with the top piece 6 and quickly clamp the circuit board, ensuring the stable placement of any circuit board in the insert frame 5 and preventing it from shaking during transportation. When the circuit board needs to be disassembled, the cylinder can drive the clamping piece 21 to rotate on the fixed seat 1 by extending and retracting and cooperating with the rotary bearing 24, thereby releasing its cooperation with the top piece 6 and releasing the clamping state of the circuit board, so that the circuit board can be quickly taken out from the insert frame 5.

[0036] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, a second rotating shaft 25 is also provided between the clamping pieces 21 distributed on both sides of the fixed base 1. The two ends of the second rotating shaft 25 are respectively connected to two clamping pieces 21 on the same fixed base 1. This can improve the installation stability of the clamping pieces 21 on the fixed base 1, and thus improve the clamping stability of the clamping pieces 21 on the circuit board.

[0037] like Figures 2 to 6 As shown, in a preferred embodiment of the present invention, the spring-loaded assembly 3 includes a locking post 31, a locking post 32, and a spring 33. The locking post 31 is fixed on both sides of the fixing base 1, the locking post 32 is fixed on the clamping plate 21, and the two ends of the spring 33 are respectively installed on the locking post 31 and the locking post 32.

[0038] In its initial state, the spring 33, through its own elastic force and in conjunction with the fixed base 1 and the locking pin 31, can drive the locking pin 32 and the clamping plate 21 to rotate, allowing the clamping plate 21 to rotate to a position that engages with the top plate 6. This completes the rapid clamping of the circuit board within the insert frame 5, ensuring the stable placement of any circuit board within the insert frame 5 and preventing it from shaking during transportation. This also prevents collisions or friction between the circuit board and adjacent circuit boards or the insert frame 5, ensuring the stability of the circuit board during transportation and improving the product quality of the circuit board.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking clamp, comprising a fixing base and a cylinder, wherein the fixing base is equidistantly distributed on a insert plate frame, and a limiting block that engages with the insert plate frame is installed at the bottom of the fixing base; the cylinder is mounted on the insert plate frame, characterized in that, Also includes: A clamping assembly is symmetrically and rotatably mounted on both sides of a fixed base. One end of the clamping assembly is connected to the output end of a cylinder, and the other end of the clamping assembly is engaged with a top plate fixed on a housing frame. A spring-loaded assembly is symmetrically arranged on both sides of the fixed base, and the two ends of the spring-loaded assembly are respectively mounted on the clamping assembly and the fixed base.

2. The self-locking clip according to claim 1, characterized in that, The clamping assembly includes clamping plates, a rotating shaft, and a rotary bearing. The rotating shaft passes through the fixed base and is rotatably connected to the fixed base. The clamping plates are symmetrically arranged on both sides of the fixed base. The two clamping plates are respectively connected to the two ends of the rotating shaft. One end of the clamping plate cooperates with the top plate. The other end of the clamping plate is equipped with a rotary bearing connected to the cylinder. One end of the spring-loaded assembly is mounted on the clamping plate.

3. The self-locking clip according to claim 2, characterized in that, One end of the clamp is provided with a clamp head, which adopts an arc-shaped structure and cooperates with the top plate to clamp the circuit board.

4. The self-locking clip according to claim 2, characterized in that, A second rotating shaft is also provided between the clamps distributed on both sides of the fixed base, and the two ends of the second rotating shaft are respectively connected to two clamps on the same fixed base.

5. The self-locking clip according to claim 2, characterized in that, The rebound assembly includes a locking pin one, a locking pin two, and a spring. The locking pin one is fixed on both sides of the fixing base, the locking pin two is fixed on the clamping plate, and the two ends of the spring are respectively installed on the locking pin one and the locking pin two.