Anti-offset stepped plugging structure for PCB (Printed Circuit Board)

Abstract

The utility model belongs to the technical field of circuit boards, and particularly relates to an anti-offset type PCB (printed circuit board) stepped plug-in structure, which comprises a shell, a PCB is mounted on the inner wall of the shell, positioning plates are fixedly connected to two sides of the shell, two sides of the PCB are arranged inside the positioning plates, fixing cylinders are fixedly connected to two sides of the surface of each positioning plate, and the fixing cylinders are fixedly connected to the inner wall of the shell. The inner wall of the fixing cylinder is slidably connected with sliding rods, and the adjacent ends of the sliding rods are fixedly connected with pressing plates. After the PCB is inserted into the shell, the two sides of the PCB are located between the positioning plates, then the sliding rods are pressed downwards to drive the clamping blocks to move, the clamping blocks can be separated from the through holes and extrude the elastic pieces towards the interiors of the grooves under the cooperation of the slopes, the sliding rods continue to move, the pressing plates clamp the PCB, and under the counter-acting force of the elastic pieces, the clamping blocks are clamped by the pressing plates. And the clamping block can be clamped into the other through hole, so that the displacement change of the PCB caused by insertion vibration or long-time use is effectively counteracted.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a stepped plug-in structure for an anti-offset PCB board. Background Technology

[0002] In electronic devices, printed circuit boards (PCBs) serve as the core electrical connection carrier and are widely used in various types of electronic products. To achieve modular design and facilitate maintenance and replacement, PCBs typically need to be connected to other components via plug-in connections. Traditional plug-in structures mostly rely on simple snap-fit ​​or slot connections, but existing plug-in devices are prone to loosening and misalignment during long-term use, affecting conductivity and even causing short circuits or damage. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a stepped plug-in structure for PCB boards that prevents misalignment. This solves the problem that most existing plug-in structures rely on simple snap-fit ​​or slot connections, which are prone to loosening and misalignment during long-term use, affecting conductivity and even causing short circuits or damage to the circuit.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stepped insertion structure for an anti-offset PCB board, comprising a housing, a PCB board mounted on the inner wall of the housing, positioning plates fixedly connected to both sides of the housing, the two sides of the PCB board disposed inside the positioning plates, fixing cylinders fixedly connected to both sides of the surface of the positioning plates, a sliding rod slidably connected to the inner wall of the fixing cylinder, pressure plates fixedly connected to adjacent ends of the sliding rod, the adjacent surfaces of the pressure plates abutting against the PCB board, a groove formed on one side of the outer wall of the sliding rod, and a fixed connection on one side of the inner wall of the groove. The device is equipped with an elastic sheet, and a locking block is fixedly connected to one side of each elastic sheet. Through holes are provided at the upper and lower parts of the surface of the fixing cylinder. The outer wall of each locking block is engaged with the inner wall of one of the through holes. An inclined surface is provided on one side of each adjacent surface of the locking block. A spring is fitted onto the outer wall of each sliding rod. The adjacent ends of the springs are fixedly connected to the adjacent ends of the sliding rods. The distant ends of the springs are fixedly connected to the adjacent inner surfaces of the positioning plate. A support cylinder is fixedly connected to one side of the fixing cylinder. A reset assembly is installed inside the support cylinder, and the support cylinder corresponds to one of the through holes.

[0005] As a preferred embodiment of this utility model, the reset assembly includes a push rod, the outer wall of which is slidably connected to the inner wall of the support cylinder, and a second spring is sleeved on the outer wall of the push rod. One end of the second spring is fixedly connected to one side of the outer wall of the push rod, and the other end of the second spring is fixedly connected to one side of the inner wall of the support cylinder.

[0006] As a preferred embodiment of this utility model, a connecting cylinder is fixedly connected to one side of the support cylinder, a locking rod is slidably connected to the inner wall of the connecting cylinder, an insertion hole is opened on one side of the outer wall of the abutment rod, one end of the locking rod is engaged with the inner wall of the insertion hole, a spring three is sleeved on the outer wall of the locking rod, one end of the spring three is fixedly connected to one side of the outer wall of the locking rod, and the other end of the locking rod is fixedly connected to one side of the inner wall of the connecting cylinder.

[0007] As a preferred embodiment of this utility model, rubber pads are fixedly connected to the adjacent surfaces of the pressure plate.

[0008] In a preferred embodiment of this utility model, the positioning plates are symmetrically arranged.

[0009] Compared with the prior art, this utility model provides a stepped plug-in structure for anti-offset PCB boards, which has the following advantages:

[0010] This anti-displacement stepped plug-in structure for PCB boards involves inserting the PCB board into the housing, with its two sides positioned between positioning plates. Then, a sliding rod is pressed down, causing the sliding rod to move the locking block. With the cooperation of the inclined surface, the locking block can disengage from the through hole and press the elastic sheet into the groove. As the sliding rod continues to move, the pressure plate clamps the PCB board. Under the reaction force of the elastic sheet, the locking block can be locked into another through hole, thereby effectively counteracting the displacement changes of the PCB board caused by plug-in vibration or long-term use. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is a diagram illustrating the present utility model;

[0013] Figure 3 This is a schematic diagram of the structure of this utility model;

[0014] Figure 4 This is an exploded view of the structure of this utility model.

[0015] In the diagram: 1. Outer shell; 2. PCB board; 3. Positioning plate; 4. Fixing cylinder; 5. Slide rod; 6. Pressure plate; 7. Groove; 8. Elastic sheet; 9. Locking block; 10. Through hole; 11. Spring 1; 12. Support cylinder; 13. Reset assembly; 1301. Abutment rod; 1302. Spring 2; 14. Connecting cylinder; 15. Locking rod; 16. Spring 3; 17. Insertion hole; 18. Rubber pad. Detailed Implementation

[0016] 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. Example 1

[0017] Please see Figure 1-4 In this embodiment: a stepped plug-in structure for an anti-offset PCB board includes a housing 1, a PCB board 2 mounted on the inner wall of the housing 1, positioning plates 3 fixedly connected to both sides of the housing 1, the two sides of the PCB board 2 disposed inside the positioning plates 3, fixing cylinders 4 fixedly connected to both sides of the surface of the positioning plates 3, sliding rods 5 slidably connected to the inner wall of the fixing cylinders 4, pressure plates 6 fixedly connected to adjacent ends of the sliding rods 5, the adjacent surfaces of the pressure plates 6 abutting against the PCB board 2, a groove 7 is formed on one side of the outer wall of the sliding rods 5, and an elastic sheet 8 is fixedly connected to one side of the inner wall of the groove 7. A locking block 9 is fixedly connected to one side of the surface. Through holes 10 are opened at the upper and lower parts of the surface of the fixing cylinder 4. The outer wall of the locking block 9 is locked in the inner wall of one of the through holes 10. An inclined surface is opened on one side of the adjacent surface of the locking block 9. A spring 11 is sleeved on the outer wall of the slide rod 5. The adjacent ends of the spring 11 are fixedly connected to the adjacent ends of the slide rod 5. The far ends of the spring 11 are fixedly connected to the adjacent inner surfaces of the positioning plate 3. A support cylinder 12 is fixedly connected to one side of the fixing cylinder 4. A reset component 13 is installed inside the support cylinder 12. The support cylinder 12 corresponds to one of the through holes 10.

[0018] In this embodiment, by inserting the PCB board 2 into the housing 1, its two sides are inserted between the positioning plates 3 located on both sides of the housing 1 to achieve initial alignment. Then, by pressing the sliding rod 5 inward, the sliding rod 5 drives the pressure plate 6 to move to both sides of the PCB board 2. Since one side of the locking block 9 is provided with a slope, the locking block 9 can be disengaged from one of the through holes 10 and squeeze the elastic piece 8 into the groove 7. The sliding rod 5 continues to slide. When the locking block 9 moves to the position of the other through hole 10, under the reaction force of the elastic piece 8, the locking block 9 can be pushed into the interior of the other through hole 10. The other side of the locking block 9 is a straight surface, which can make it lock into the interior of the other through hole 10 to prevent loosening. At this time, the pressure plate 6 can press the PCB board 2 to prevent it from shifting.

[0019] Furthermore, the reset assembly 13 includes a push rod 1301, the outer wall of the push rod 1301 is slidably connected to the inner wall of the support cylinder 12, and a second spring 1302 is sleeved on the outer wall of the push rod 1301. One end of the second spring 1302 is fixedly connected to one side of the outer wall of the push rod 1301, and the other end of the second spring 1302 is fixedly connected to one side of the inner wall of the support cylinder 12.

[0020] Specifically, by pushing the abutment rod 1301, the locking block 9 can be pushed out of another through hole 10. With the cooperation of the spring 11, the sliding rod 5 can be reset, causing the pressure plate 6 to disengage from the PCB board 2, thereby unlocking and releasing the sliding rod 5, and thus releasing the clamping of the PCB board 2.

[0021] Furthermore, a connecting cylinder 14 is fixedly connected to one side of the support cylinder 12, and a locking rod 15 is slidably connected to the inner wall of the connecting cylinder 14. An insertion hole 17 is opened on one side of the outer wall of the abutment rod 1301. One end of the locking rod 15 is stuck in the inner wall of the insertion hole 17. A spring 16 is sleeved on the outer wall of the locking rod 15. One end of the spring 16 is fixedly connected to one side of the outer wall of the locking rod 15, and the other end of the locking rod 15 is fixedly connected to one side of the inner wall of the connecting cylinder 14.

[0022] The locking rod 15 is connected to the abutment rod 1301 through the connecting tube 14. One end of the locking rod 15 is inserted into the insertion hole 17 on the side of the abutment rod 1301, and the clamping force is provided by the spring 16, thereby locking the abutment rod 1301 and preventing accidental rebound.

[0023] Preferably, rubber pads 18 are fixedly connected to adjacent surfaces of the pressure plate 6;

[0024] The rubber pad 18 further enhances friction and provides cushioning protection.

[0025] Preferably, the positioning plates 3 are arranged symmetrically.

[0026] The working principle and usage process of this utility model are as follows: By inserting the PCB board 2 into the housing 1, its two sides will be inserted between the positioning plates 3 located on both sides of the housing 1 to achieve initial alignment. Then, by pressing the sliding rod 5 inward, the sliding rod 5 drives the pressure plate 6 to move to both sides of the PCB board 2. Since one side of the locking block 9 is provided with an inclined surface, the locking block 9 can be disengaged from one of the through holes 10 and squeeze the elastic sheet 8 into the groove 7. The sliding rod 5 continues to slide. When the locking block 9 moves to the position of the other through hole 10, under the reaction force of the elastic sheet 8, the locking block 9 can be pushed into the interior of the other through hole 10. The other side of the locking block 9 is a straight surface. This allows the plate to be locked inside another through hole 10 to prevent it from loosening. At this time, the pressure plate 6 can press down on the PCB board 2 to prevent it from shifting. By pushing the abutment rod 1301, the locking block 9 can be pushed out of another through hole 10. With the cooperation of the spring 11, the sliding rod 5 can be driven to reset, causing the pressure plate 6 to disengage from the PCB board 2, thereby unlocking and releasing the sliding rod 5, thus releasing the clamp on the PCB board 2. The locking rod 15 is connected to the abutment rod 1301 through the connecting tube 14. One end of the locking rod 15 is inserted into the insertion hole 17 on the side of the abutment rod 1301. The spring 316 provides clamping force, thereby locking the abutment rod 1301 and preventing accidental rebound.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A misalignment-proof PCB board stepped plug-in structure comprising a housing (1), characterized in that: A PCB board (2) is installed on the inner wall of the outer shell (1). Positioning plates (3) are fixedly connected to both sides of the outer shell (1). The two sides of the PCB board (2) are located inside the positioning plates (3). Fixing cylinders (4) are fixedly connected to both sides of the surface of the positioning plates (3). A sliding rod (5) is slidably connected to the inner wall of the fixing cylinder (4). A pressure plate (6) is fixedly connected to the adjacent ends of the sliding rod (5). The adjacent surfaces of the pressure plate (6) are in contact with the PCB board (2). A groove (7) is opened on one side of the outer wall of the sliding rod (5). An elastic sheet (8) is fixedly connected to one side of the inner wall of the groove (7). A locking block (9) is fixedly connected to one side of the surface of the elastic sheet (8). The fixed cylinder (4) has through holes (10) on its upper and lower surfaces. The outer wall of the locking block (9) is locked in the inner wall of one of the through holes (10). The adjacent side of the locking block (9) has a bevel. The outer wall of the sliding rod (5) is fitted with a spring (11). The adjacent ends of the spring (11) are fixedly connected to the adjacent ends of the sliding rod (5). The far ends of the spring (11) are fixedly connected to the adjacent inner surfaces of the positioning plate (3). The fixed cylinder (4) has a support cylinder (12) fixedly connected to one side. The support cylinder (12) has a reset component (13) installed inside. The support cylinder (12) corresponds to one of the through holes (10).

2. The anti-skew PCB board stepped plug-in structure according to claim 1, characterized in that: The reset assembly (13) includes a stop rod (1301), the outer wall of which is slidably connected to the inner wall of the support cylinder (12). A second spring (1302) is sleeved on the outer wall of the stop rod (1301). One end of the second spring (1302) is fixedly connected to one side of the outer wall of the stop rod (1301), and the other end of the second spring (1302) is fixedly connected to one side of the inner wall of the support cylinder (12).

3. The anti-migration PCB board stepped plug structure according to claim 2, characterized in that: A connecting cylinder (14) is fixedly connected to one side of the support cylinder (12). A locking rod (15) is slidably connected to the inner wall of the connecting cylinder (14). An insertion hole (17) is opened on one side of the outer wall of the abutment rod (1301). One end of the locking rod (15) is stuck in the inner wall of the insertion hole (17). A spring three (16) is sleeved on the outer wall of the locking rod (15). One end of the spring three (16) is fixedly connected to one side of the outer wall of the locking rod (15). The other end of the locking rod (15) is fixedly connected to one side of the inner wall of the connecting cylinder (14).

4. The anti-migration PCB board stepped plug structure according to claim 1, wherein: Rubber pads (18) are fixedly connected to the adjacent surfaces of the pressure plate (6).

5. The anti-migration PCB board stepped plug structure according to claim 1, wherein: The positioning plates (3) are arranged symmetrically.

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