A waterproof sealing structure for a current circuit

Abstract

The utility model discloses a current circuit waterproof sealing structure relates to the electric appliance protection technical field, and the utility model discloses a shell is personally experienced sth, and the upper surface fixed mounting of shell has the sealing cover, and the inner surface symmetrical fixed mounting of shell has the compression device, and the both sides of shell are inserted and are equipped with waterproof head subassembly, and the lower surface of base is fixedly connected with the inner surface of shell, and the upper surface slidingly connected of base has the moving plate and is equipped with the shaft seat fixedly, one side of pressing rod is rotatably connected with the shaft seat, and the end of base is fixedly connected with the moving plate, and the utility model discloses a compression device and waterproof head subassembly's cooperation use to reach the effect of convenient stable electronic component and improve the line waterproof.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment protection technology, specifically a waterproof sealing structure for current circuits. Background Technology

[0002] In many electronic devices and electrical systems, current circuits are a core component, undertaking the important functions of power transmission and signal transmission. These current circuits often contain various precision electronic components, circuit boards, and connecting lines, and have relatively strict requirements for the operating environment. The waterproof sealing structure of current circuits is a protective device designed to prevent moisture from penetrating into the current or circuit, ensuring the normal operation and safety of electrical equipment.

[0003] In some current circuit protection structures, the way internal electronic components are fixed is not reliable enough. For example, if components are fixed by simply using slots or glue, they are prone to shaking, displacement, or even falling off when the equipment is subjected to vibration, impact, or bumps during transportation. Furthermore, current circuits usually need to be connected to external equipment or power sources, and these connection points are weak points in waterproofing. Traditional protection methods are difficult to effectively seal the connection points, and moisture can easily enter the circuit along the lines. Summary of the Invention

[0004] To address the issues of unstable internal circuit components and difficulty in waterproofing, the purpose of this invention is to provide a waterproof and sealed structure for current circuits.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a waterproof sealing structure for a current circuit, comprising a housing, a sealing cover fixedly installed on the upper surface of the housing, a pressing device symmetrically fixedly installed on the inner surface of the housing, waterproof head assemblies inserted on both sides of the housing, the pressing device comprising a base, the lower surface of the base being fixedly connected to the inner surface of the housing, a movable plate slidably connected to the upper surface of the base and symmetrically fixedly installed with a shaft seat, pressure rods rotatably connected to both sides of the movable plate, one side of the pressure rod being rotatably connected to the shaft seat, a lead screw threadedly inserted through the housing at the end of the base, a handwheel fixedly sleeved at one end of the lead screw, and the other end of the lead screw being fixedly connected to the movable plate.

[0006] Preferably, the waterproof head assembly includes a body, one end of which is threaded with a nut, a waterproof ring is fitted between the body and the nut, the other end of which is threaded with a clamping head, and a clamping ring is movably installed between the inner walls of one end of the body.

[0007] Preferably, the inner surface of the housing has multiple connection slots for use by the circuit board, and the outer surface of the housing has multiple fixing slots.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] 1. This utility model utilizes a combination of a clamping device and a waterproof head assembly. The clamping device employs a screw drive and a pressure rod linkage clamping element, with a slide rail guide to ensure stability and a precise connection groove to ensure stable circuit connection. The clamping head, clamping ring, and clamping claw at the other end of the main body work together to clamp the passing wires when the clamping head is tightened, preventing moisture from entering the housing along the wires and achieving a good waterproof seal at the wire connection. Attached Figure Description

[0010] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the pressing device of this utility model.

[0014] Figure 4 This is a schematic diagram of the waterproof head assembly structure of this utility model.

[0015] In the diagram: 11. Housing; 12. Sealing cap; 13. Threaded groove; 14. Mounting groove; 15. Sealing ring; 16. Clamping device; 17. Waterproof head assembly; 18. Base; 19. Slide rail; 20. Slider; 21. Moving plate; 22. Lead screw; 23. Handwheel; 24. Shaft seat; 25. Pressure rod; 26. Clamping head; 27. Clamping ring; 28. Main body; 29. ​​Waterproof ring; 30. Nut. 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.

[0017] Example: Figure 1-4As shown, this utility model provides a waterproof sealing structure for a current circuit, including a housing 11. Multiple threaded grooves 13 are fixedly opened on the upper surface of the housing 11, and a through mounting groove 14 is opened on the outer surface of the sealing cover 12. The threaded grooves 13 and the mounting groove 14 are both distributed in a rectangular array. The threaded grooves 13 and the mounting groove 14 are used together. The rectangular array design makes the connection between the sealing cover 12 and the housing 11 more uniform and stable, and the multiple connection points enhance the stability of the overall structure. By screwing bolts or other connectors through the mounting groove 14 into the threaded groove 13, the sealing cover 12 can be tightly fixed to the housing 11, further improving the reliability of the waterproof sealing structure and preventing water from seeping in from the joint due to loose connection. The sealing cover 12 is fixedly installed on the upper surface of the housing 11, and a sealing ring 15 is fixedly connected to the upper surface of the housing 11. The lower surface of the sealing cover 12 has a sealing groove for use with the sealing ring 15. This design is a key element of waterproofing. When the sealing cover 12 is installed on the housing 11, the sealing ring 15 is squeezed into the sealing groove, filling the gap between the two and forming an effective waterproof barrier. This can prevent external water from entering the internal circuit from the joint between the housing 11 and the sealing cover 12, improving the waterproof performance of the entire structure. A clamping device 16 is symmetrically fixedly installed on the inner surface of the housing 11, and waterproof head assemblies 17 are inserted on both sides of the housing 11.

[0018] The clamping device 16 includes a base 18, the lower surface of which is fixedly connected to the inner surface of the housing 11. A movable plate 21 is slidably connected to the upper surface of the base 18, and shaft seats 24 are symmetrically fixedly installed thereon. A slide rail 19 is fixedly installed on the upper surface of the base 18, and a slider 20 is slidably sleeved on the outer surface of the slide rail 19. The outer surface of the slider 20 is fixedly connected to the movable plate 21. The cooperation between the slide rail 19 and the slider 20 provides guidance for the sliding of the movable plate 21, ensuring that the movable plate 21 can move smoothly and accurately along the upper surface of the base 18 under the drive of the lead screw 22. This ensures that the pressure applied by the pressure rod 25 to the internal circuit components is uniform and stable, improves the component fixing effect, and prevents the components from failing to be firmly clamped due to the unstable movement of the movable plate 21.

[0019] Both sides of the movable plate 21 are rotatably connected to pressure rods 25. One side of the pressure rod 25 is rotatably connected to the bearing seat 24. The end of the base 18 passes through the housing 11 and is threaded with a lead screw 22. One end of the lead screw 22 is fixedly sleeved with a handwheel 23, and the other end of the lead screw 22 is fixedly connected to the movable plate 21. When the operator rotates the handwheel 23, the lead screw 22 rotates. Because the lead screw 22 is threadedly engaged with the end of the base 18 and connected to the movable plate 21, the rotation of the lead screw 22 causes the movable plate 21 to slide along the upper surface of the base 18. The pressure rods 25 on both sides of the movable plate 21 are rotatably connected to the movable plate 21 and the bearing seat 24, respectively. The sliding of the movable plate 21 changes the angle of the pressure rods 25, thereby applying pressure to the circuit boards and other components inside the housing 11, pressing them tightly and fixing them to prevent the components from shaking or shifting.

[0020] The waterproof head assembly 17 includes a main body 28. One end of the main body 28 is fixedly connected to a clamping claw, which is arranged in a ring array. The clamping claw arranged in a ring array at one end of the main body 28 cooperates with the clamping head 26 and the clamping ring 27. When the clamping head 26 is tightened, the clamping claw will retract inward, which can clamp the passing wire more evenly and tightly. This design not only ensures the stability of the wire connection and prevents problems such as poor contact caused by loose wires, but also further enhances the waterproof effect and prevents water from entering the interior of the housing 11 along the wire. One end of the main body 28 is threaded with a nut 30, and a waterproof ring 29 is sleeved between the main body 28 and the nut 30. The other end of the main body 28 is threaded with a clamping head 26. The outer surface of the main body 28 is provided with external threads for use with the nut 30 and the clamping head 26. This thread design allows the nut 30 and the clamping head 26 to be tightly fitted with the main body 28 through threaded connection. Tightening the nut 30 compresses the waterproof ring 29, sealing the connection between the main body 28 and the housing 11. Tightening the clamping head 26 pushes the clamping ring 27 and clamping claws to clamp the wire, enhancing the waterproofness and stability of the wire connection. The threaded connection facilitates installation and disassembly, and is beneficial for later maintenance and repair. The clamping ring 27 is movably installed between the inner walls of one end of the main body 28, and the waterproof ring 29 is fitted onto one end of the main body 28. By tightening the nut 30, the waterproof ring 29 is compressed between the main body 28, the nut 30, and the housing 11, filling the gap at the connection and preventing moisture from entering the housing 11 from the connection opening. When the clamping head 26 is tightened, it pushes the clamping ring 27, causing the clamping structure at the end of the main body 28 to contract, thereby clamping the passing wire, ensuring a stable wire connection, and preventing moisture from entering the housing 11 along the wire.

[0021] Working principle: The housing 11 serves as the basic framework of the entire structure, with the sealing cover 12 fixedly installed on top of it. Together, they form a relatively enclosed space to accommodate components related to the current circuit. Multiple rectangularly arranged threaded grooves 13 on the upper surface of the housing 11 engage with the through-type, similarly rectangularly arranged mounting grooves 14 on the outer surface of the sealing cover 12. Bolts or other connecting parts can be passed through the mounting grooves 14 and screwed into the threaded grooves 13 to firmly fix the sealing cover 12 to the housing 11, initially forming a closed space. When the sealing cover 12 is installed on the housing 11, the sealing ring 15 is squeezed into the sealing groove, filling the gap between them and effectively preventing external moisture from entering through the housing 11 and the sealing cover. The seal 12 is infiltrated at the joint, providing a good waterproof seal. When the operator turns the handwheel 23, the screw 22, which is fixedly connected to the handwheel 23, also rotates. Since the screw 22 is threaded to the end of the base 18 and connected to the movable plate 21, the rotation of the screw 22 will cause the movable plate 21 to slide along the upper surface of the base 18. When the movable plate 21 slides, the angle of the pressure rod 25 changes, thereby applying pressure to the circuit board and other components placed in the housing 11, pressing them tightly and preventing the components from loosening. The slide rail 19 is fixed to the upper surface of the base 18, and the slider 20 is connected to the movable plate 21 and slides on the slide rail 19, providing guidance for the sliding of the movable plate 21 and ensuring its stability and accuracy.

[0022] The main body 28 of the waterproof head assembly 17 is inserted on both sides of the housing 11 for connecting external lines. One end of the main body 28 is fitted with a waterproof ring 29 and threadedly connected by a nut 30. When the nut 30 is tightened, the waterproof ring 29 is squeezed between the main body 28, the nut 30, and the housing 11, filling the gap at the connection and preventing moisture from entering the housing 11 from the connection port. The clamping ring 27 and the clamping claws arranged in a ring array at the end of the main body 28 are movably installed on the inner wall of one end. When the clamping head 26 is tightened, the clamping head 26 will push the clamping ring 27 and the clamping claws to contract inward, thereby clamping the passing lines. This not only ensures the stability of the line connection but also further enhances the waterproof effect and prevents moisture from entering the housing 11 along the lines.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A waterproof sealing structure for a current circuit, comprising a housing (11), characterized in that: A sealing cap (12) is fixedly installed on the upper surface of the housing (11), and a clamping device (16) is symmetrically fixedly installed on the inner surface of the housing (11). Waterproof head assemblies (17) are inserted on both sides of the housing (11). The pressing device (16) includes a base (18), the lower surface of which is fixedly connected to the inner surface of the housing (11), a movable plate (21) is slidably connected to the upper surface of the base (18) and a shaft seat (24) is symmetrically fixedly installed, a pressure rod (25) is rotatably connected to both sides of the movable plate (21), one side of the pressure rod (25) is rotatably connected to the shaft seat (24), the end of the base (18) passes through the housing (11) and is threaded with a lead screw (22), one end of the lead screw (22) is fixedly sleeved with a handwheel (23), and the other end of the lead screw (22) is fixedly connected to the movable plate (21).

2. The waterproof sealing structure for a current circuit as described in claim 1, characterized in that, The waterproof head assembly (17) includes a main body (28), one end of which is threaded with a nut (30), a waterproof ring (29) is fitted between the main body (28) and the nut (30), the other end of which is threaded with a clamping head (26), and a clamping ring (27) is movably installed between the inner walls of one end of the main body (28).

3. The waterproof sealing structure for a current circuit as described in claim 1, characterized in that, The upper surface of the housing (11) is provided with a plurality of threaded grooves (13), and the outer surface of the sealing cover (12) is provided with a through mounting groove (14). The threaded grooves (13) and the mounting groove (14) are arranged in a rectangular array and are used in conjunction.

4. The waterproof sealing structure for a current circuit as described in claim 1, characterized in that, A sealing ring (15) is fixedly connected to the upper surface of the housing (11), and a sealing groove for use with the sealing ring (15) is opened on the lower surface of the sealing cover (12).

5. The waterproof sealing structure for a current circuit as described in claim 1, characterized in that, A slide rail (19) is fixedly installed on the upper surface of the base (18), and a slider (20) is slidably sleeved on the outer surface of the slide rail (19). The outer surface of the slider (20) is fixedly connected to the moving plate (21).

6. The waterproof sealing structure for a current circuit as described in claim 2, characterized in that, The outer surface of the main body (28) is provided with external threads for use with the nut (30) and the clamping head (26).

7. The waterproof sealing structure for a current circuit as described in claim 2, characterized in that, One end of the main body (28) is fixedly connected to a clamping claw, and the clamping claw is distributed in a ring array.

8. The waterproof sealing structure for a current circuit as described in claim 1, characterized in that, The inner surface of the housing (11) is provided with a plurality of connection slots for use by the circuit board, and the outer surface of the housing (11) is provided with a plurality of fixing slots.

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