Fireproof water inlet electromagnetic valve

Abstract

The utility model belongs to the technical field of water inlet electromagnetic valve structure improvement, and particularly relates to a fireproof water inlet electromagnetic valve which comprises a valve body and a wiring protection box, at least one coil support is arranged on the valve body, a coil body is installed in each coil support, and a terminal installation portion is arranged on each coil body. A group of wiring terminals are mounted in each terminal mounting part, the wiring protection box is provided with plugging ports for plugging the wiring terminals, and the wiring protection box is also provided with a plurality of positioning blocks corresponding to the coil main body; the waterproof structure comprises an upper protection plate horizontally arranged above the coil support and a front protection plate vertically arranged between the coil body and the wiring protection box, and through holes in one-to-one correspondence with the wiring terminals are formed in the front protection plate in a penetrating mode. According to the fireproof water inlet electromagnetic valve, effective water prevention can be carried out on the top and the front side of the coil body, water prevention on the coil body is more comprehensive, the waterproof effect is better, and potential safety hazards of fire disasters are greatly eliminated.

Description

Technical Field

[0001] The utility model relates to a fire-proof water inlet electromagnetic valve, belonging to the technical field of water inlet electromagnetic valve structure improvement. Background Art

[0002] A water inlet solenoid valve is an electromagnetic device used to control the flow of water. Its basic operating principle is: when the solenoid valve is energized, the electromagnet generates a magnetic force that attracts the valve core or iron core, opening the valve. When the solenoid valve is de-energized, the magnetic force disappears, and the valve core, acting as a spring, returns to its original position, closing the valve. Water inlet solenoid valves are widely used in industrial water treatment, agricultural irrigation, and household appliances due to their advantages such as high efficiency and energy saving, precise control, stability and reliability, and safety and environmental protection. In the prior art, the coil body of a water inlet solenoid valve typically uses a plastic housing. This is because plastic housings are inexpensive, have good corrosion resistance and insulation properties, and are lightweight and easy to install and maintain. However, plastic housings also have the following disadvantages: if a water leak occurs in the application area, water droplets can easily splash onto the base of the terminal and the plastic housing, causing arcing. Water droplets on the base of the terminal can also easily penetrate into the housing and contact the coil, causing a short circuit. Both of these pose a fire hazard.

[0003] Chinese utility model patent, granted with publication number CN220930320U, discloses a water inlet valve with splash-proof, fire-proof, and electric shock-proof features. While the valve features a circuit board, protective cover, and rotating cover, effectively preventing water droplets from splashing onto the base of the terminal block, thus alleviating fire safety hazards to a certain extent, the aforementioned prior art suffers from poor waterproofing. Water droplets can still adhere to the plastic housing through the top and gaps between the plastic housing and the circuit board, posing a fire safety hazard. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a fire-proof water inlet solenoid valve with good waterproof effect.

[0005] The fireproof water inlet solenoid valve described in the present invention includes a valve body and a wiring protection box. The valve body is provided with at least one coil bracket, and a coil body is installed in each coil bracket. Each coil body is provided with a terminal mounting portion, and a group of wiring terminals are installed in each terminal mounting portion. The wiring protection box is provided with a plug interface for plugging the wiring terminals, and the wiring protection box is also provided with a plurality of positioning blocks corresponding to the coil bodies; it also includes a waterproof structure, which includes an upper protective plate horizontally arranged above the coil bracket and a front protective plate vertically arranged between the coil body and the wiring protection box, and the front protective plate is penetrated by through holes corresponding to the wiring terminals one by one.

[0006] Furthermore, the upper protective plate and the front protective plate are an integrally bent structure, and grooves corresponding to the terminal mounting portions are provided at the corners of the front protective plate and the upper protective plate, and the through holes are provided on the grooves.

[0007] Furthermore, the lower end of the front protective plate is bent forward to form a lower protective plate that fits the valve body.

[0008] Furthermore, the lower protective plate is penetrated by a plurality of clamping holes, and the valve body is provided with a plurality of clamping blocks corresponding to the clamping holes.

[0009] Furthermore, the rear end of the upper protective plate is bent downward to form a flange.

[0010] Furthermore, the lower end of the flange is bent forward to form a plurality of snap-in pieces corresponding to the coil supports, and each coil support has two snap-in pieces, which are respectively snap-connected to the two ends of the top plate of the coil support.

[0011] Furthermore, the waterproof structure is waterproof paper.

[0012] Working principle and process:

[0013] The upper protective plate is used to provide waterproof protection for the top of the coil body. The flange hook is on the rear side of the top plate of the coil bracket to ensure the installation stability of the upper protective plate. The card hook is on the lower side of the top plate of the coil bracket, which can further improve the installation stability of the upper protective plate; the front protective plate is used to provide waterproof protection for the front side of the coil body. The through hole is used for the wiring terminal to pass through, ensuring that the wiring terminal is smoothly inserted into the plug interface of the wiring protection box. The positioning block at the lower end of the wiring protection box can press the front protective plate against the coil body to ensure the installation stability of the front protective plate. The setting of the groove can accommodate the terminal mounting part and eliminate the interference of the terminal mounting part on the front protective plate, thereby ensuring that the front protective plate is closely fitted to the coil body and improving the waterproof effect of the front side of the coil body; the lower protective plate can prevent water droplets from entering through the gap between the valve body and the lower end of the wiring protection box and adhering to the coil body, further improving the waterproof effect of the front protective plate; the setting of the card block and the card hole can position and install the lower protective plate, thereby ensuring the installation stability of the front protective plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The fireproof water inlet solenoid valve described in the utility model can effectively waterproof the top and front side of the coil body, which makes the waterproofing of the coil body more comprehensive and has a better waterproof effect, thus greatly eliminating the potential fire safety hazards; moreover, the waterproof structure is easy to disassemble, and maintenance and replacement are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is the main view of the utility model;

[0018] Figure 3 It is a rear view of the utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of the M in the middle;

[0020] Figure 5 It is a right side view of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the waterproof structure of the utility model.

[0022] In the figure: 1. Valve body; 2. Coil bracket; 3. Upper protective plate; 4. Flanged edge; 5. Wiring protective box; 6. Plug interface; 7. Lower protective plate; 8. Clamping block; 9. Coil body; 10. Clamping piece; 11. Front protective plate; 12. Terminal mounting part; 13. Positioning block; 14. Through hole; 15. Clamping hole; 16. Groove. DETAILED DESCRIPTION

[0023] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0024] Example 1:

[0025] like Figures 1 to 6 As shown, the fire-proof water inlet solenoid valve described in the utility model includes a valve body 1 and a wiring protection box 5. The valve body 1 is provided with at least one coil bracket 2, and each coil bracket 2 is installed with a coil body 9. Each coil body 9 is provided with a terminal mounting portion 12, and each terminal mounting portion 12 is installed with a group of wiring terminals. The wiring protection box 5 is provided with a plug-in interface 6 for plugging in the wiring terminals, and the wiring protection box 5 is also provided with a plurality of positioning blocks 13 corresponding to the coil bodies 9; it also includes a waterproof structure, which includes an upper protective plate 3 horizontally arranged above the coil bracket 2 and a front protective plate 11 vertically arranged between the coil body 9 and the wiring protection box 5, and the front protective plate 11 is penetrated by through holes 14 corresponding to the wiring terminals one by one.

[0026] When in use, the upper protective plate 3 is used to provide waterproof protection for the top of the coil body 9, the front protective plate 11 is used to provide waterproof protection for the front side of the coil body 9, and the through hole 14 is used for the wiring terminal to pass through, ensuring that the wiring terminal is smoothly inserted into the plug interface 6 of the wiring protection box 5. The positioning block 13 at the lower end of the wiring protection box 5 can press the front protective plate 11 against the coil body 9 to ensure the installation stability of the front protective plate 11.

[0027] Example 2:

[0028] like Figures 1 to 6 As shown, based on Example 1,

[0029] Furthermore, the upper protective plate 3 and the front protective plate 11 are integrally bent and formed. A groove 16 corresponding to the terminal mounting portion 12 is provided at the corner of the front protective plate 11 and the upper protective plate 3. The through hole 14 is provided on the groove 16. The provision of the groove 16 can accommodate the terminal mounting portion 12, eliminating the interference of the terminal mounting portion 12 on the front protective plate 11, thereby ensuring that the front protective plate 11 is closely fitted to the coil body 9, thereby improving the waterproof effect on the front side of the coil body 9;

[0030] Furthermore, the lower end of the front protective plate 11 is bent forward to form a lower protective plate 7 that fits the valve body 1. The lower protective plate 7 can prevent water droplets from entering through the gap between the valve body 1 and the lower end of the wiring protective box 5 and adhering to the coil body 9, further improving the waterproof effect of the front protective plate 11.

[0031] Furthermore, the lower protective plate 7 is penetrated by a plurality of clamping holes 15, and the valve body 1 is provided with a plurality of clamping blocks 8 corresponding to the clamping holes 15. The arrangement of the clamping blocks 8 and the clamping holes 15 can position and install the lower protective plate 7, and the installation and removal are simple and convenient, thereby ensuring the installation stability of the front protective plate 11;

[0032] Furthermore, the rear end of the upper protective plate 3 is bent downward to form a flange 4, which is hooked on the rear side of the top plate of the coil support 2 to ensure the installation stability of the upper protective plate 3;

[0033] Furthermore, the lower end of the flange 4 is bent forward to form a plurality of clips 10 corresponding to the coil holders 2. Each coil holder 2 has two clips 10, which are respectively clipped to the two ends of the top plate of the coil holder 2. The clips 10 are hooked on the lower side of the top plate of the coil holder 2, which can further improve the installation stability of the upper protective plate 3.

[0034] Furthermore, the waterproof structure is waterproof paper, which is cheap, has excellent waterproof performance, is wear-resistant, corrosion-resistant, safe and environmentally friendly.

[0035] It is particularly noted that in the description of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. A fireproof water inlet solenoid valve, comprising a valve body (1) and a wiring protection box (5), wherein the valve body (1) is provided with at least one coil support (2), each coil support (2) is provided with a coil body (9), each coil body (9) is provided with a terminal mounting portion (12), each terminal mounting portion (12) is provided with a group of wiring terminals, the wiring protection box (5) is provided with an insertion port (6) for connecting the wiring terminals, and the wiring protection box (5) is further provided with a plurality of positioning blocks (13) corresponding to the coil bodies (9), characterized in that: The invention also includes a waterproof structure, which includes an upper protective plate (3) horizontally arranged above the coil support (2) and a front protective plate (11) vertically arranged between the coil body (9) and the wiring protection box (5), and the front protective plate (11) is penetrated by through holes (14) corresponding to the wiring terminals.

2. The fireproof water inlet solenoid valve according to claim 1, characterized in that: The upper protective plate (3) and the front protective plate (11) are an integrally bent structure, and a groove (16) corresponding to the terminal mounting portion (12) is provided at the corner of the front protective plate (11) and the upper protective plate (3), and the through hole (14) is provided on the groove (16).

3. The fireproof water inlet solenoid valve according to claim 2, characterized in that: The lower end of the front protective plate (11) is bent forward to form a lower protective plate (7) that fits the valve body (1).

4. The fireproof water inlet solenoid valve according to claim 3, characterized in that: The lower protective plate (7) is penetrated by a plurality of clamping holes (15), and the valve body (1) is provided with a plurality of clamping blocks (8) corresponding to the clamping holes (15).

5. The fireproof water inlet solenoid valve according to any one of claims 2 to 4, characterized in that: The rear end of the upper protective plate (3) is bent downward to form a flange (4).

6. The fireproof water inlet solenoid valve according to claim 5, characterized in that: The lower end of the flange (4) is bent forward to form a plurality of snap-in plates (10) corresponding to the coil supports (2), and each coil support (2) has two snap-in plates (10) corresponding to each other, and the two snap-in plates (10) are respectively snap-connected to the two ends of the top plate of the coil support (2).

7. The fireproof water inlet solenoid valve according to claim 6, characterized in that: The waterproof structure is waterproof paper.

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