Novel automatic water injection valve group
By designing a new type of automatic water injection valve assembly with filtration, drainage, backflow prevention, and pressure reduction devices, the problems of poor water quality and simple functions have been solved, achieving efficient filtration and pressure stabilization, and improving usage efficiency.
Patent Information
- Application Number
- CN202520309784.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing water injection valves suffer from poor water quality and simple functionality, failing to meet modern usage requirements.
A novel automatic water injection valve assembly was designed, comprising a filtration device, a discharge device, an anti-backflow structure, and a pressure reducing device. It features good filtration effect and high functionality. The filtration device removes impurities, the discharge device discharges sewage, the anti-backflow structure prevents backflow, and the pressure reducing device maintains stable pressure.
It achieves efficient water filtration, prevents backflow, maintains stable pressure, and improves efficiency and functionality.
Smart Images

Figure CN223895129U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of valve technology and relates to a novel automatic water injection valve assembly. Background Technology
[0002] A water injection valve is an automatic water replenishment device for a sealed water circulation system. Current water injection valves typically suffer from the following drawbacks: 1. Poor water quality inside the valve, with impurities entering and affecting overall operation; 2. Simple functionality, failing to meet the needs of modern society.
[0003] Therefore, the applicant provides a novel automatic water injection valve assembly to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel automatic water injection valve assembly.
[0005] The purpose of this utility model can be achieved through the following technical solution: A novel automatic water injection valve assembly, characterized in that it includes a valve body, the valve body having an inlet end and an outlet end respectively, a filter device connected to the inlet end is provided inside the valve body, a drain device is provided inside the valve body and located in the middle section, an anti-backflow structure and a pressure reducing device are provided at the rear section of the valve body respectively, and a water collector is connected to the drain device on the valve body.
[0006] In the aforementioned novel automatic water injection valve assembly, the valve body is equipped with switch valves at both the inlet and outlet ends, and the valve body is equipped with a switch handle for controlling the operation of the switch valves.
[0007] In the above-mentioned novel automatic water injection valve assembly, the filtration device includes an upper mounting frame, a lower mounting frame, and a filter cartridge disposed between the upper and lower mounting frames. The filter cartridge is connected to the water inlet and supplies water for filtration. The upper mounting frame is fixed to the valve body by a snap-fit method. The valve body has an impurity observation port, and an installation cap that is threadedly connected to the valve body is provided at the impurity observation port.
[0008] In the aforementioned novel automatic water injection valve assembly, the discharge device includes an outer frame, a discharge valve core, a spring, and a support seat.
[0009] In the aforementioned novel automatic water injection valve assembly, the anti-backflow structure includes a housing, an anti-backflow valve core, and a second spring, wherein the housing has a support portion for the spring to abut against.
[0010] In the aforementioned novel automatic water injection valve assembly, the water collector is rotatably mounted on the valve body.
[0011] In the aforementioned novel automatic water injection valve assembly, the valve body is provided with a reserved hole for mounting a mechanical pressure gauge.
[0012] In the aforementioned novel automatic water injection valve assembly, the valve body has product mounting and fixing holes.
[0013] In the aforementioned novel automatic water injection valve assembly, a pipeline pressure detection hole is provided in the middle section of the valve body.
[0014] Compared with existing technologies, this new automatic water injection valve assembly has the advantages of good filtration effect, high functionality and high efficiency. Attached Figure Description
[0015] Figure 1 This is a 3D view of the new automatic water injection valve assembly.
[0016] Figure 2 This is a partial sectional view of the new automatic water injection valve assembly.
[0017] In the diagram: 1. Valve body; 2. Inlet; 3. Outlet; 4. Water collector; 5. Switch valve; 6. Switch handle; 7. Upper mounting bracket; 8. Lower mounting bracket; 9. Filter cartridge; 10. Impurity observation port; 11. Mounting cap; 12. Outer frame; 13. Drain valve core; 14. Spring 1; 15. Abutment seat; 16. Housing; 17. Anti-backflow valve core; 18. Spring 2; 19. Abutment part; 20. Pre-drilled hole for mechanical pressure gauge installation; 21. Product mounting and fixing hole; 22. Pipeline pressure detection hole. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] like Figure 1 , Figure 2 As shown, this novel automatic water injection valve assembly includes a valve body 1, which has an inlet end 2 and an outlet end 3. A filter device connected to the inlet end 2 is installed inside the valve body 1. A discharge device is installed inside the valve body 1, located in its middle section. An anti-backflow structure and a pressure reducing device are installed at the rear section of the valve body 1. A water collector 4 is connected to the discharge device on the valve body 1. The water collector 4 can completely collect the discharged sewage, ensuring that the drainage is vertically downward and completely collected into the sewage pipe, preventing overflow. The pressure reducing device is mainly used to stabilize the pressure at the rear section of the valve body 1 at the required pressure value. When the pressure at the rear section decreases, pressure is replenished.
[0020] To elaborate further, the valve body 1 is equipped with switch valves 5 at both the inlet end 2 and the outlet end 3. The valve body 1 is equipped with a switch handle 6 to control the operation of the switch valves 5. The switch valves 5 are designed at both the inlet and outlet ends 3 for easy closure during maintenance and cleaning.
[0021] To elaborate further, the filtration device includes an upper mounting bracket 7, a lower mounting bracket 8, and a filter cartridge 9 disposed between the upper and lower mounting brackets 8. The filter cartridge 9 is connected to the water inlet 2 and supplies water for filtration. The upper mounting bracket 7 is fixed inside the valve body 1 by a snap-fit method. The valve body 1 has an impurity observation port 10, and an installation cap 11 that is threadedly connected to the valve body 1 is provided at the impurity observation port 10 for convenient periodic disassembly and cleaning.
[0022] To elaborate further, the discharge device includes an outer frame 12, a discharge valve core 13, a spring 14, and a support seat 15. The outer frame 12 has several drainage grooves. When the pressure in the front section of the valve body 1 is lower than the pressure in the rear section, the discharge device opens to discharge the sewage in the rear section.
[0023] To elaborate further, the anti-backflow structure includes a housing 16, an anti-backflow valve core 17, and a spring 18. The housing 16 has a backing part 19 for the spring to abut against. The anti-backflow structure is used to prevent sewage from flowing back to the front section. The anti-backflow valve core 17 has a pressure detection hole for the back section.
[0024] Preferably, the water collector 4 is rotatably mounted on the valve body 1.
[0025] Preferably, the valve body 1 is provided with a reserved hole 20 for mounting a mechanical pressure gauge.
[0026] Preferably, the valve body 1 has a product mounting and fixing hole 21.
[0027] To elaborate further, a pipeline pressure detection hole 22 is provided in the middle section of the valve body 1, which is also connected through the mounting cap 11.
[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0029] Although this document frequently uses terms such as valve body 1, inlet end 2, outlet end 3, water collector 4, switch valve 5, switch handle 6, upper mounting bracket 7, lower mounting bracket 8, filter cartridge 9, impurity observation port 10, mounting cap 11, outer frame 12, drain valve core 13, spring one 14, abutment seat 15, housing 16, anti-backflow valve core 17, spring two 18, abutment part 19, mechanical pressure gauge mounting hole 20, product mounting fixing hole 21, and pipeline pressure detection hole 22, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A novel automatic water injection valve assembly, characterized in that, The valve body (1) includes an inlet end (2) and an outlet end (3). The valve body (1) is equipped with a filter device that communicates with the inlet end (2). The valve body (1) is equipped with a drain device located in its middle section. The valve body (1) is equipped with an anti-backflow structure and a pressure reducing device at its rear section. The valve body (1) is connected to the drain device with a water collector (4).
2. The novel automatic water injection valve assembly according to claim 1, characterized in that, The valve body (1) is equipped with a switch valve (5) at the inlet end (2) and the outlet end (3), and the valve body (1) is equipped with a switch handle (6) to control the operation of the switch valve (5).
3. The novel automatic water injection valve assembly according to claim 1, characterized in that, The filter device includes an upper mounting bracket (7), a lower mounting bracket (8), and a filter cartridge (9) disposed between the upper and lower mounting brackets (8). The filter cartridge (9) is connected to the water inlet (2) and supplies water for filtration. The upper mounting bracket (7) is fixed inside the valve body (1) by a snap-fit method. The valve body (1) has an impurity observation port (10), and an installation cap (11) that is threadedly connected to the valve body (1) is provided at the impurity observation port (10).
4. The novel automatic water injection valve assembly according to claim 1, characterized in that, The discharge device includes an outer frame (12), a discharge valve core (13), a spring (14), and a backing seat (15).
5. A novel automatic water injection valve assembly according to claim 1, characterized in that, The anti-backflow structure includes a housing (16), an anti-backflow valve core (17), and a second spring (18). The housing (16) has a backing part (19) for the spring to abut against.
6. A novel automatic water injection valve assembly according to claim 1, characterized in that, The water collector (4) is rotatably mounted on the valve body (1).
7. A novel automatic water injection valve assembly according to claim 1, characterized in that, The valve body (1) is provided with a reserved hole (20) for installing a mechanical pressure gauge.
8. A novel automatic water injection valve assembly according to claim 1, characterized in that, The valve body (1) has a product mounting and fixing hole (21).
9. A novel automatic water injection valve assembly according to claim 1, characterized in that, A pipeline pressure detection hole (22) is provided in the middle section of the valve body (1).