Anti-pressing fixing device of printed circuit board

Abstract

The utility model relates to the technical field of printed circuit boards, in particular to an anti-pressing fixing device of a printed circuit board, which comprises a base, a notch is arranged on the base, an adjusting plate is rotatably connected in the notch, a first sliding groove and a second sliding groove are arranged at the positions of the upper end of the base on two sides of the notch, and the bottoms of the first sliding groove and the second sliding groove are communicated with each other. Supporting assemblies are rotationally connected to the two sides of the adjusting plate correspondingly, the lower ends of the two supporting assemblies are slidably connected into the two first sliding grooves correspondingly, the lower ends of the two supporting assemblies are clamped and matched with one side walls of the two first sliding grooves correspondingly, and a plurality of fixing assemblies used for positioning a circuit board are fixedly connected to the upper end of the base; by sliding the lower ends of the two supporting assemblies at the same time, the two supporting assemblies rotate at the same time, one end of the adjusting plate is lifted, the adjusting plate, the supporting assemblies and the base form a triangle, the structure is stable, the machining angle of the printed circuit board is not limited, the circuit board is fixed at multiple points through the multiple fixing assemblies, and the circuit board is prevented from being crushed.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit boards, specifically a pressure-resistant fixing device for printed circuit boards. Background Technology

[0002] Printed circuit boards (PCBs) are important electronic components. They serve as the support for electronic components and the carrier for electrical interconnection between them. They provide mechanical support for fixing and assembling various electronic components such as integrated circuits, realize wiring and electrical connection or electrical insulation between various electronic components such as integrated circuits, and provide the required electrical characteristics. During the processing of PCBs, they need to be fixed in position with the help of fixing devices to prevent displacement and errors caused during processing.

[0003] Existing printed circuit board fixing devices, such as the circuit board bracket and fixing device proposed in patent application number "CN202321230359.9", use structures such as mounting boxes, brackets, and snap-fit ​​units to engage bending tooth A and bending tooth B in slots, fixing and positioning two sets of bending plates. This allows the two sets of bending plates and fixing plates to quickly clamp and fix the circuit board, resulting in short clamping time and portability. Furthermore, it can easily drive one end of bending tooth A and bending tooth B out of the slots, allowing the circuit board to be quickly removed from the positioning port of the fixing plate.

[0004] However, existing technology has limitations; it can only fix printed circuit boards horizontally and cannot adjust the fixing angle. The processing angle of horizontally fixed circuit boards is limited. Therefore, a pressure-resistant fixing device for printed circuit boards is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-resistant fixing device for printed circuit boards to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A pressure-resistant fixing device for a printed circuit board includes a base with a slot. An adjusting plate is rotatably connected to the slot. A sliding groove 1 and a sliding groove 2 are provided on both sides of the slot at the upper end of the base. The bottoms of the sliding groove 1 and the sliding groove 2 are connected. Support components are rotatably connected to both sides of the adjusting plate. The lower ends of the two sets of support components are slidably connected to the two sets of sliding groove 1 respectively, and the lower ends of the two sets of support components are respectively engaged with one side wall of the two sets of sliding grooves. Multiple sets of fixing components for positioning the circuit board are fixedly connected to the upper end of the base.

[0008] Preferably, the support assembly includes an adjusting arm, one end of which is rotatably connected to the side wall of the adjusting plate, and the other end is rotatably connected to a fixed column in the middle. The fixed column is slidably connected between slide groove one and slide groove two, and the end of the fixed column near the adjusting plate is engaged with the side wall of the slide groove.

[0009] Preferably, the two ends of the fixing column pass through both sides of the adjusting arm, and the end of the fixing column away from the adjusting plate is fixedly connected to a sliding plate, which is slidably connected in the sliding groove.

[0010] Preferably, the fixed column has a groove at one end near the adjusting plate, a locking column is slidably connected in the groove, a spring is fixed between the locking column and the inner wall of the groove, and multiple sets of locking slots are opened on the side of the sliding groove near the adjusting plate, with the locking column engaging with the locking slots.

[0011] Preferably, the slide plate has a rectangular opening, one end of the locking post is fixedly connected to a pull rod, the end of the pull rod is slidably connected to the rectangular opening, a connecting plate is slidably connected to the rectangular opening, and the end of the pull rod is fixedly connected to the connecting plate.

[0012] Preferably, the fixing component includes a threaded post, which is fixed to the upper end of the base. A pressure plate is threadedly connected to the side wall of the threaded post. A connecting rod is slidably connected to the end of the pressure plate. An elastic pressure block for pressing the circuit board is fixed to the lower end of the connecting rod. A second spring is fixed between the lower end of the pressure plate and the side wall of the connecting rod. The second spring is sleeved on the side wall of the connecting rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model places the printed circuit board on the adjustment plate and slides the lower ends of two sets of support components at the same time, causing the two sets of support components to rotate simultaneously. The support components support the adjustment plate, raising one end of the adjustment plate. After the support components slide, they are locked in place. The adjustment plate, support components, and base form a triangle, which is structurally stable. This device can adjust the fixed angle of the printed circuit board, and the processing angle of the printed circuit board is not limited.

[0015] 2. This utility model uses multiple sets of fixing components to fix the circuit board on the adjusting plate. When fixing, the pressure plate is rotated to adjust the height of the pressure plate on the threaded column. One end of the pressure plate is pressed downward by the spring to the connecting rod, so that the elastic pressure block at the lower end of the connecting rod presses the circuit board. The area of ​​the circuit board being pressed is small, and the elastic pressing is used to prevent the circuit board from being crushed, thus having an anti-pressure function. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0020] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point A;

[0021] The attached figures are labeled as follows:

[0022] 1. Base; 2. Groove; 3. Adjusting plate; 5. Slide groove one; 6. Slide groove two; 7. Slot; 8. Adjusting arm; 9. Slide plate; 10. Fixing post; 11. Groove; 12. Slotting post; 13. Spring one; 14. Pull rod; 15. Rectangular opening; 16. Connecting plate; 17. Threaded post; 19. Pressure plate; 20. Connecting rod; 21. Elastic pressure block; 22. Spring two. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A pressure-resistant fixing device for printed circuit boards, such as Figures 1-4 As shown, the device includes a base 1, on which a slot 2 is provided. An adjusting plate 3 is rotatably connected. On both sides of the slot 2, a sliding groove 5 and a sliding groove 6 are provided at the upper end of the base 1. The bottoms of the sliding groove 5 and the sliding groove 6 are connected. Support components are rotatably connected to both sides of the adjusting plate 3. The lower ends of the two sets of support components are slidably connected to the two sets of sliding grooves 5, and the lower ends of the two sets of support components are respectively engaged with the side walls of the two sets of sliding grooves 5. Multiple sets of fixing components for positioning the circuit board are fixedly connected to the upper end of the base 1.

[0025] By placing the printed circuit board on the adjusting plate 3 and simultaneously sliding the lower ends of the two sets of support components, the lower ends of the two sets of support components slide simultaneously within the two sets of sliding grooves 5. The upper ends of the two sets of support components rotate simultaneously, supporting the adjusting plate 3 and lifting one end of the adjusting plate 3. After the support components slide, they snap into place. The adjusting plate 3, the support components, and the base 1 form a triangle, which is structurally stable. This device can adjust the fixing angle of the printed circuit board, and the processing angle of the printed circuit board is not limited. Multiple sets of fixing components fix the circuit board on the adjusting plate 3, providing multi-point fixing of the circuit board, resulting in good fixing effect, small contact area, and preventing the circuit board from being crushed.

[0026] like Figure 1 , Figure 2 , Figure 4 As shown, the support assembly includes an adjusting arm 8. One end of the adjusting arm 8 is rotatably connected to the side wall of the adjusting plate 3, and the other end is rotatably connected to a fixed column 10. The fixed column 10 is slidably connected between the first slide groove 5 and the second slide groove 6. The end of the fixed column 10 near the adjusting plate 3 is engaged with the side wall of the first slide groove 5.

[0027] When the lower end of the sliding adjustment arm 8 slides, the fixed column 10 at the lower end of the adjustment arm 8 slides between the first slide groove 5 and the second slide groove 6, and the lower end of the adjustment arm 8 can rotate relative to the fixed column 10 to prevent the angle of the adjustment arm 8 from being stuck. After the adjustment arm 8 finishes sliding, one end of the fixed column 10 is engaged with the slide groove by the side wall, fixing the position of the fixed column 10, fixing the position of the lower end of the adjustment arm 8, and stabilizing the angle of the adjustment plate 3.

[0028] like Figure 4 As shown, the two ends of the fixed column 10 pass through both sides of the adjusting arm 8, and the end of the fixed column 10 away from the adjusting plate 3 is fixedly connected to the slide plate 9, which is slidably connected in the slide groove 6.

[0029] The upper end of the slide plate 9 is located above the slide groove 6. When adjusting the angle, slide the upper end of the slide plate 9, and the slide plate drives the fixed column 10 to slide, so that the fixed column 10 drives the lower end of the adjusting arm 8 to slide.

[0030] like Figure 4 As shown, the fixed column 10 has a groove 11 at one end near the adjusting plate 3. A locking column 12 is slidably connected in the groove 11. A spring 13 is fixed between the locking column 12 and the inner wall of the groove 11. Multiple sets of locking slots 7 are opened on the side of the sliding groove 5 near the adjusting plate 3. The locking column 12 and the locking slots 7 are engaged.

[0031] When the position of the fixed post 10 is determined, the spring 13 presses the locking post 12, causing the locking post 12 to engage with the locking groove 7, thereby fixing the position of the fixed post 10.

[0032] like Figure 4As shown, a rectangular opening 15 is provided on the slide plate 9, and a pull rod 14 is fixedly connected to one end of the locking post 12. The end of the pull rod 14 is slidably connected to the rectangular opening 15, and a connecting plate 16 is slidably connected to the rectangular opening 15. The end of the pull rod 14 is fixedly connected to the connecting plate 16.

[0033] The upper end of the connecting plate 16 is located above the slide plate 9. When adjusting the angle, the connecting plate 16 is first squeezed, and the connecting plate 16 slides in the rectangular opening 15. The pull rod 14 pulls the locking post 12, causing the locking post 12 to disengage from the slot 7. The spring 13 is compressed, squeezing the sliding slide plate 9, causing the slide plate 9 to slide through the fixed post 10 and drive the lower end of the adjusting arm 8 to slide. The connecting plate 16 and the pull rod 14 facilitate the control of whether the fixed post 10 is engaged with the side wall of the slide groove 5.

[0034] like Figures 1-3 As shown, the fixing component includes a threaded post 17, which is fixedly connected to the upper end of the base 1. A pressure plate 19 is threadedly connected to the side wall of the threaded post 17. A connecting rod 20 is slidably connected to the end of the pressure plate 19. An elastic pressure block 21 for pressing the circuit board is fixedly connected to the lower end of the connecting rod 20. A second spring 22 is fixedly connected between the lower end of the pressure plate 19 and the side wall of the connecting rod 20. The second spring 22 is sleeved on the side wall of the connecting rod 20.

[0035] The circuit board is fixed on the adjustment plate 3 by multiple sets of fixing components. When fixing, the pressure plate 19 is rotated to adjust the height of the pressure plate 19 on the threaded column 17. One end of the pressure plate 19 is pressed down by the spring to the connecting rod 20, so that the elastic pressure block 21 at the lower end of the connecting rod 20 presses the circuit board. The area of ​​the circuit board being pressed is small, and the elastic pressing is used to prevent the circuit board from being crushed. It has an anti-pressure function.

[0036] The working principle of the anti-pressure fixing device for printed circuit boards provided by this utility model is as follows:

[0037] By placing the printed circuit board on the adjusting plate 3 and simultaneously sliding the lower ends of the two sets of support components, the lower ends of the two sets of support components slide simultaneously within the two sets of sliding grooves 5. The upper ends of the two sets of support components rotate simultaneously, supporting the adjusting plate 3 and lifting one end of the adjusting plate 3. After the support components slide, they snap into place. The adjusting plate 3, the support components, and the base 1 form a triangle, which is structurally stable. This device can adjust the fixing angle of the printed circuit board, and the processing angle of the printed circuit board is not limited. Multiple sets of fixing components fix the circuit board on the adjusting plate 3, providing multi-point fixing of the circuit board, resulting in good fixing effect, small contact area, and preventing the circuit board from being crushed.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pressure-resistant fixing device for a printed circuit board, comprising a base (1), characterized in that, The base (1) has a slot (2) and an adjusting plate (3) is rotatably connected inside the slot (2). The upper end of the base (1) is provided with a sliding groove (5) and a sliding groove (6) on both sides of the slot (2). The bottom of the sliding groove (5) and the sliding groove (6) are connected. The adjusting plate (3) is rotatably connected to both sides. The lower ends of the two sets of supporting components are slidably connected to the two sets of sliding grooves (5) respectively, and the lower ends of the two sets of supporting components are respectively engaged with the side walls of the two sets of sliding grooves (5). The upper end of the base (1) is fixed with multiple sets of fixing components for positioning the circuit board.

2. The anti-pressure fixing device for a printed circuit board according to claim 1, characterized in that, The support assembly includes an adjusting arm (8), one end of which is rotatably connected to the side wall of the adjusting plate (3), and the other end is rotatably connected to a fixed column (10). The fixed column (10) is slidably connected between the first slide groove (5) and the second slide groove (6). The end of the fixed column (10) near the adjusting plate (3) is engaged with the side wall of the first slide groove (5).

3. The anti-pressure fixing device for a printed circuit board according to claim 2, characterized in that, The fixed column (10) has two ends that pass through both sides of the adjusting arm (8). The end of the fixed column (10) away from the adjusting plate (3) is fixedly connected to the sliding plate (9), which is slidably connected in the sliding groove (6).

4. The anti-pressure fixing device for a printed circuit board according to claim 3, characterized in that, The fixed column (10) has a groove (11) at one end near the adjusting plate (3). A locking column (12) is slidably connected in the groove (11). A spring (13) is fixed between the locking column (12) and the inner wall of the groove (11). Multiple sets of locking slots (7) are opened on the side of the sliding groove (5) near the adjusting plate (3). The locking column (12) and the locking slots (7) are engaged.

5. The anti-pressure fixing device for a printed circuit board according to claim 4, characterized in that, The slide plate (9) has a rectangular opening (15), and a pull rod (14) is fixedly connected to one end of the locking post (12). The end of the pull rod (14) is slidably connected to the rectangular opening (15), and a connecting plate (16) is slidably connected to the rectangular opening (15). The end of the pull rod (14) is fixedly connected to the connecting plate (16).

6. The anti-pressure fixing device for a printed circuit board according to claim 1, characterized in that, The fixing component includes a threaded post (17), which is fixed to the upper end of the base (1). A pressure plate (19) is threaded to the side wall of the threaded post (17). A connecting rod (20) is slidably connected to the end of the pressure plate (19). An elastic pressure block (21) for squeezing the circuit board is fixed to the lower end of the connecting rod (20). A second spring (22) is fixed between the lower end of the pressure plate (19) and the side wall of the connecting rod (20). The second spring (22) is sleeved on the side wall of the connecting rod (20).

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