A waterproof and dustproof circuit control board

Abstract

This utility model relates to the field of control circuit board technology and discloses a waterproof and dustproof circuit control board, including a housing. A top cover is rotatably connected to the top of the housing, and a fixing block is fixedly connected to the bottom of the top cover. The outer wall of the fixing block is slidably connected to the inside of the housing. A rotating shaft is rotatably connected inside the fixing block, and a handle is fixedly connected to one end of the rotating shaft. A gear is fixedly connected to the outer wall of the rotating shaft. Inserts are slidably connected to both sides inside the fixing block, and a rack is fixedly connected to one side of each insert. The rack meshes with the outer wall of the gear. A rotary spring is provided inside the fixing block. In this utility model, the handle controls the rotation of the gear, which in turn drives the inserts to retract into the fixing block via the rack, allowing the top cover to open from the housing and be fixed by the elastic return of the rotary spring. This solves the problem of screw fixing being easily damaged after prolonged use and improves the convenience of maintenance of the circuit control board.

Description

Technical Field

[0001] This utility model relates to the field of control circuit board technology, and in particular to a waterproof and dustproof circuit control board. Background Technology

[0002] A circuit control board, also known as a printed circuit board, is a provider of electrical connections for electronic components. It is often referred to as "PCB". According to the number of circuit layers, it can be divided into single-sided boards, double-sided boards, four-layer boards, six-layer boards, and other multi-layer circuit boards. On the most basic PCB, the components are concentrated on one side, and the wires are concentrated on the other side. Because the wires only appear on one side, this type of PCB is called a single-sided board. It is an indispensable component in many electronic devices and their components.

[0003] To protect circuit control boards from water and dust, they are often fitted with outer casings. However, these casings are usually secured with screws. To maintain the circuit control board, the casings need to be removed. Repeated disassembly can lead to stripped threads and worn screw holes. This is especially true for low-strength materials such as aluminum alloys and plastics. After the threads fail, they need to be re-tapping or the parts need to be replaced. Furthermore, metal screws are prone to corrosion in humid or salt spray environments, making disassembly even more difficult. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a waterproof and dustproof circuit control board, which aims to improve the problem that the existing circuit control board's waterproof and dustproof shell is fixed by screws, and repeated disassembly can easily cause the threads to strip, making the shell difficult to open.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and dustproof circuit control board, comprising a housing, a top cover rotatably connected to the top of the housing, a fixing block fixedly connected to the bottom of the top cover, the outer wall of the fixing block slidably connected to the inside of the housing, a rotating shaft rotatably connected inside the fixing block, a handle fixedly connected to one end of the rotating shaft, a gear fixedly connected to the outer wall of the rotating shaft, inserts slidably connected to both sides inside the fixing block, a rack fixedly connected to one side of the insert, the rack meshing with the outer wall of the gear, a rotating spring provided inside the fixing block, one end of the rotating spring fixedly connected to the inside of the rotating shaft, the other end of the rotating spring fixedly connected to the inside of the fixing block, a slot provided inside the housing, and the outer wall of the insert slidably connected to the inside of the slot.

[0006] Furthermore, fixing plates are fixedly connected to both sides of the outer wall of the outer shell, and heat dissipation holes are provided inside the outer shell.

[0007] Furthermore, a fixing post is fixedly connected inside the outer shell, and a plug rod is slidably connected inside the fixing post.

[0008] Furthermore, a pressure plate is fixedly connected to the outer wall of the insertion rod, and a slot is provided inside the fixing column.

[0009] Furthermore, a retaining ball is slidably connected inside the insert rod, and the outer wall of the retaining ball is slidably connected inside the retaining groove.

[0010] Furthermore, a handle is fixedly connected to the outer wall of the insertion rod, and a button is slidably connected inside the insertion rod.

[0011] Furthermore, a conical block is fixedly connected to the bottom of the button, and the outer wall of the conical block fits against the outer wall of the slot.

[0012] Furthermore, a limiting post is fixedly connected inside the insertion rod, and the outer wall of the limiting post is slidably connected inside the conical block. A compression spring is sleeved on the outer wall of the limiting post.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the gear can be rotated by the handle, which in turn drives the insert block to retract into the fixed block through the rack, so that the top cover can be opened from the outer shell and fixed by the elastic reset of the rotating spring. This solves the problem that screw fixing is prone to damage after long-term use and improves the convenience of maintenance of the circuit control board.

[0015] 2. In this utility model, the insert rod is inserted into the fixed column, so that the elasticity of the compression spring can push the conical block, causing the conical block to push the locking ball into the slot opened inside the fixed column. Then, the pressure plate on the outer wall of the insert rod cooperates with the fixed column to fix it, thereby improving the stability of the circuit control board. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a waterproof and dustproof circuit control board proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of the outer casing of a waterproof and dustproof circuit control board proposed in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A cross-sectional view of the fixing post of a waterproof and dustproof circuit control board proposed in this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0021] Legend:

[0022] 1. Outer shell; 2. Top cover; 3. Ventilation vents; 4. Fixing plate; 5. Handle; 6. Fixing block; 7. Slot; 8. Rotating shaft; 9. Gear; 10. Rotary spring; 11. Rack; 12. Insertion block; 13. Fixing post; 14. Ball catcher; 15. Limiting post; 16. Compression spring; 17. Conical block; 18. Slot; 19. Insertion rod; 20. Pressure plate; 21. Handle; 22. Button. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3 An embodiment of this utility model provides a waterproof and dustproof circuit control board, including a housing 1, a top cover 2 rotatably connected to the top of the housing 1, a fixing block 6 fixedly connected to the bottom of the top cover 2, the outer wall of the fixing block 6 slidably connected to the inside of the housing 1, a rotating shaft 8 rotatably connected inside the fixing block 6, a handle 5 fixedly connected to one end of the rotating shaft 8, a gear 9 fixedly connected to the outer wall of the rotating shaft 8, insert blocks 12 slidably connected to both sides inside the fixing block 6, a rack 11 fixedly connected to one side of the insert block 12, the rack 11 meshing with the outer wall of the gear 9, a rotating spring 10 provided inside the fixing block 6, one end of the rotating spring 10 fixedly connected to the inside of the rotating shaft 8, the other end of the rotating spring 10 fixedly connected to the inside of the fixing block 6, a slot 7 opened inside the housing 1, and the outer wall of the insert block 12 slidably connected to the inside of the slot 7;

[0025] Specifically, when the outer casing of the circuit control board is open, it can be rotated by operating the handle 5. The rotation of the handle 5 is transmitted to the gear 9 through the rotating shaft 8, causing the gear 9 to start rotating. As the gear 9 rotates, it further drives the racks 11 located on both sides to move accordingly. The movement of these racks 11 directly affects the inserts 12 on both sides, causing them to retract along the track into the interior of the fixing block 6, ultimately allowing the top cover 2 to be opened from the outer casing 1. Conversely, when the outer casing 1 and the top cover 2 are in a closed and fixed state, the fixing block 6 will be embedded inside the outer casing 1. At this time, if the handle 5 is released, the rotating spring 10 connected to the rotating shaft 8 will automatically perform a reset action. The reset of the rotating spring 10 will push the insert 12 forward until it is inserted into the pre-drilled slot 7 on the outer casing 1. In this way, the outer casing 1 and the top cover 2 are firmly fixed together, ensuring the safety and stability of the equipment.

[0026] Reference Figure 1The outer walls of the outer shell 1 are fixedly connected to both sides of the fixing plate 4, and the outer shell 1 has heat dissipation holes 3 inside;

[0027] Specifically, fixing plates 4 are provided on both sides of the outer casing 1. These fixing plates 4 not only serve to fix the outer casing 1, but also provide additional support. At the same time, in order to ensure that the equipment will not be affected or damaged due to excessive temperature during operation, heat dissipation holes 3 are specially opened on the outer wall of the outer casing 1. These heat dissipation holes 3 can effectively dissipate the heat generated inside and maintain the normal operating temperature of the equipment.

[0028] Reference Figure 4 and Figure 5 The outer casing 1 has a fixed post 13 inside, a sliding rod 19 inside the fixed post 13, a pressure plate 20 fixedly connected to the outer wall of the rod 19, a slot 18 inside the fixed post 13, a ball 14 slidingly connected inside the rod 19, the outer wall of the ball 14 slidingly connected to the slot 18, a handle 21 fixedly connected to the outer wall of the rod 19, a button 22 slidingly connected inside the rod 19, a conical block 17 fixedly connected to the bottom of the button 22, the outer wall of the conical block 17 fitting against the outer wall of the slot 18, a limiting post 15 fixedly connected inside the rod 19, the outer wall of the limiting post 15 slidingly connected to the conical block 17, and a compression spring 16 sleeved on the outer wall of the limiting post 15.

[0029] Specifically, during the installation of the circuit control board, the plug rod 19 is first inserted through the circuit control board and into the fixing post 13 inside the housing 1. During insertion, the operator needs to press the button 22 on the plug rod 19. This allows the conical block 17 to slide down against the resistance applied by the compression spring 16. As the conical block 17 slides down, the retaining ball 14 retracts into the plug rod 19. When the plug rod 19 is fully inserted into the fixing post 13, the previously pressed button 22 can be released. After releasing the button, the compression spring 16 will return the conical block 17 to its original position due to its elasticity, thereby pushing the retaining ball 14 out of the plug rod 19. The retaining ball 14 will then accurately slide into the retaining groove 18 on the inner wall of the fixing post 13, ensuring a firm connection between the plug rod 19 and the fixing post 13, thus completing the fixing process between the circuit control board and the housing 1.

[0030] Working principle: When the outer casing of the circuit control board is open, the handle 5 can be rotated, which in turn drives the gear 9 via the rotating shaft 8. The gear 9 then moves the racks 11 on both sides, which in turn retract the inserts 12 into the fixing blocks 6. This allows the top cover 2 to open from the outer casing 1. When the outer casing 1 and the top cover 2 are closed and fixed, the fixing blocks 6 are inserted into the outer casing 1. Releasing the handle 5 resets the rotating spring 10 connected to the rotating shaft 8, pushing the inserts 12 into the slots 7 in the outer casing 1. This allows the outer casing 1 and the top cover 2 to be opened. When the circuit control board is fixed inside the housing, the plug rod 19 can be inserted through the circuit control board into the fixing post 13 inside the housing 1. Then, the button 22 on the plug rod 19 is pressed, which pushes the conical block 17 to slide down against the force of the compression spring 16, so that the locking ball 14 can retract into the plug rod 19, making it easier to insert the plug rod 19. After the plug rod 19 is inserted, the button 22 is released, and the conical block 17 will return to its original position under the elasticity of the compression spring 16, thereby pushing the locking ball 14 to slide out of the plug rod 19 and into the locking groove 18 on the inner wall of the fixing post 13, thus fixing the plug rod 19 to the fixing post 13.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof and dustproof circuit control board comprising a housing (1), characterized in that: The top of the outer shell (1) is rotatably connected to a top cover (2), and the bottom of the top cover (2) is fixedly connected to a fixing block (6). The outer wall of the fixing block (6) is slidably connected to the inside of the outer shell (1). The inside of the fixing block (6) is rotatably connected to a rotating shaft (8). One end of the rotating shaft (8) is fixedly connected to a handle (5). The outer wall of the rotating shaft (8) is fixedly connected to a gear (9). Both sides of the inside of the fixing block (6) are slidably connected to insert blocks (12). One side of the insert block (12) is fixedly connected to a rack (11). The rack (11) meshes with the outer wall of the gear (9). The inside of the fixing block (6) is provided with a rotating spring (10). One end of the rotating spring (10) is fixedly connected to the inside of the rotating shaft (8), and the other end of the rotating spring (10) is fixedly connected to the inside of the fixing block (6). The inside of the outer shell (1) is provided with a slot (7). The outer wall of the insert block (12) is slidably connected to the inside of the slot (7).

2. The waterproof and dustproof circuit control board according to claim 1, characterized in that: The outer walls of the outer shell (1) are fixedly connected to both sides of the fixing plate (4), and the outer shell (1) is provided with heat dissipation holes (3).

3. The waterproof and dustproof circuit control board according to claim 1, characterized in that: The outer shell (1) is fixedly connected to a fixed column (13), and the fixed column (13) is slidably connected to a plug rod (19).

4. The waterproof and dustproof circuit control board according to claim 3, characterized in that: The outer wall of the insertion rod (19) is fixedly connected to a pressure plate (20), and the inside of the fixing column (13) is provided with a slot (18).

5. The waterproof and dustproof circuit control board according to claim 4, characterized in that: The insert (19) is slidably connected to a ball (14), and the outer wall of the ball (14) is slidably connected to the inside of the slot (18).

6. The waterproof and dustproof circuit control board according to claim 5, characterized in that: A handle (21) is fixedly connected to the outer wall of the insertion rod (19), and a button (22) is slidably connected inside the insertion rod (19).

7. The waterproof and dustproof circuit control board according to claim 6, characterized in that: The bottom of the button (22) is fixedly connected to a conical block (17), and the outer wall of the conical block (17) is in contact with the outer wall of the slot (18).

8. The waterproof and dustproof circuit control board according to claim 7, characterized in that: The insertion rod (19) is fixedly connected to a limiting post (15), the outer wall of the limiting post (15) is slidably connected to the inside of the conical block (17), and a compression spring (16) is sleeved on the outer wall of the limiting post (15).

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