Water safety valve capable of automatically relieving pressure
By designing an automatic pressure relief safety valve for water, which automatically opens the pressure relief component based on water pressure changes, the problem of existing pressure relief valves requiring electrical control is solved, realizing automatic pressure relief without electrical control, reducing costs, and making it suitable for frequent pressure relief scenarios.
Patent Information
- Application Number
- CN202423126157.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing pressure relief valves require electronic control systems, which are costly and unsuitable for frequent pressure relief scenarios, and cannot achieve automatic pressure relief.
An automatic pressure relief safety valve for water has been designed. It automatically opens the pressure relief component using water pressure, including a limit block, piston, push plate, spring and scale. Automatic pressure relief is achieved by changes in water pressure, and the pressure relief threshold can be adjusted by a knob and a cap.
It enables automatic pressure relief based on water pressure without the need for electrical control, reducing costs and making it suitable for scenarios requiring frequent pressure relief.
Smart Images
Figure CN223511584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage valve technology, specifically an automatic pressure relief water safety valve. Background Technology
[0002] A pressure relief valve is a type of valve that automatically opens when the pressure is too high, allowing high-pressure fluid to be discharged. It is a type of valve with high safety.
[0003] Existing pressure relief valves typically require sensors to detect water pressure in real time and control the pressure relief through electronic means. Therefore, they not only require electricity but are also costly. In scenarios where frequent pressure relief is needed, a new type of pressure relief valve is required to solve this problem. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model proposes an automatic pressure relief water safety valve that can automatically drain water when the water pressure reaches a certain level, and the critical water pressure for valve drainage can be preset in advance.
[0005] The technical solution to achieve the purpose of this utility model is as follows: an automatic pressure relief water safety valve, including a housing, with water pipes fixedly connected to both ends of the housing, a switch assembly inside the housing, the switch assembly including a valve body fixedly connected to the inside of the housing, a limit block rotatably connected inside the valve body, a drain hole provided on the limit block, a knob rotatably connected to the housing, the knob being fixedly connected to the limit block, and a pressure relief assembly provided on the housing, the pressure relief assembly including a pressure relief pipe and a side pipe, the pressure relief pipe being fixedly connected to one side of the housing, and the side pipe being fixedly connected to the end of the pressure relief pipe near the housing.
[0006] Preferably, the pressure relief assembly further includes a push plate and a piston, the push plate and the piston being slidably connected to the inner wall of the pressure relief pipe, and the push plate and the piston being fixedly connected.
[0007] Preferably, the pressure relief assembly further includes a fixed sleeve, a sliding rod, and a spring. The fixed sleeve is fixedly connected to the push plate, the sliding rod is slidably connected inside the fixed sleeve and slidably connected to the pressure relief pipe, and the spring is fixedly connected between the inner wall of the fixed sleeve and the sliding rod.
[0008] Preferably, the pressure relief assembly further includes a cap and a screw, the cap being rotatably connected to the pressure relief pipe, the screw being fixedly connected to the cap, and the screw being threadedly connected to the slide rod.
[0009] Preferably, the pressure relief pipe is equipped with a scale, which is located around the cap.
[0010] Compared with the prior art, the significant advantages of this utility model are:
[0011] Firstly, in this utility model, when the water pressure is normal, water can enter the outer shell through a water pipe, then flow through the drain hole into the valve body, and finally be discharged from another water pipe. If drainage is not required, the knob can be turned to make the limiting block rotate. When the limiting block rotates, the drain end of the drain hole will abut against the inner wall of the valve body, preventing water from being discharged.
[0012] Secondly, in this invention, when the water pressure is too high and pressure relief is needed, the water pressure will cause the piston to be impacted by the water pressure, thereby pushing the piston open and exposing the side pipe. At this time, the high-pressure water will be discharged from the side pipe, reducing the water pressure in the entire system. According to the quality and standards of the pipeline system and drainage system, the water pressure at which it is discharged through the side pipe can be adjusted. At this time, the cap needs to be rotated, and the cap drives the screw to rotate. When the screw rotates, the slide rod moves. After the slide rod moves, its initial position will change, and the degree of compression of the spring will change. If the slide rod moves towards the push plate, the initial compression of the spring will increase. At this time, a greater water pressure is required to push the piston open, so that the water can be discharged from the side pipe. There is a scale around the cap, and the scale is marked with the water pressure, which indicates the water pressure required to push the piston open. Attached Figure Description
[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0016] Figure 3 This is a cross-sectional view of the internal structure of the outer shell in this utility model;
[0017] Figure 4 This is a cross-sectional view of the internal structure of the pressure relief pipe in this utility model.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Outer casing; 2. Water pipe; 3. Switch assembly; 31. Valve body; 32. Limit block; 33. Drain hole; 34. Knob; 4. Pressure relief assembly; 41. Pressure relief pipe; 42. Side pipe; 43. Push plate; 44. Piston; 45. Fixing sleeve; 46. Slide rod; 47. Spring; 48. Cap; 49. Screw. Detailed Implementation
[0020] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0021] This utility model provides an improved automatic pressure relief safety valve for water. The technical solution of this utility model is as follows:
[0022] like Figures 1-4 As shown, an automatic pressure relief water safety valve includes a housing 1, with water pipes 2 fixedly connected to both ends of the housing 1. A switch assembly 3 is provided inside the housing 1, and the switch assembly 3 includes a valve body 31, which is fixedly connected to the inside of the housing 1. A limit block 32 is rotatably connected inside the valve body 31, and a drain hole 33 is provided on the limit block 32. A knob 34 is rotatably connected to the housing 1, and the knob 34 is fixedly connected to the limit block 32. A pressure relief assembly 4 is provided on the housing 1, and the pressure relief assembly 4 includes a pressure relief pipe 41 and a side pipe 42. The pressure relief pipe 41 is fixedly connected to one side of the housing 1, and the side pipe 42 is fixedly connected to the end of the pressure relief pipe 41 near the housing 1.
[0023] Furthermore, the pressure relief assembly 4 also includes a push plate 43 and a piston 44. The push plate 43 and the piston 44 are slidably connected to the inner wall of the pressure relief pipe 41. The push plate 43 and the piston 44 are fixedly connected. The piston 44 blocks the side pipe 42. The piston 44 can only be pushed open when the water pressure is large enough, so that the side pipe 42 can be used to drain water and relieve pressure.
[0024] Furthermore, the pressure relief assembly 4 also includes a fixed sleeve 45, a sliding rod 46, and a spring 47. The fixed sleeve 45 is fixedly connected to the push plate 43, the sliding rod 46 is slidably connected to the inside of the fixed sleeve 45, and the sliding rod 46 is slidably connected to the pressure relief pipe 41. The spring 47 is fixedly connected between the inner wall of the fixed sleeve 45 and the sliding rod 46.
[0025] Furthermore, the pressure relief assembly 4 also includes a cap 48 and a screw 49. The cap 48 is rotatably connected to the pressure relief pipe 41, and the screw 49 is fixedly connected to the cap 48. The screw 49 is threadedly connected to the slide rod 46. The cap 48 drives the screw 49 to rotate, and the rotation of the screw 49 causes the slide rod 46 to move. After the slide rod 46 moves, its initial position will change, and the degree of compression of the spring 47 will change. For example, if the slide rod 46 moves towards the push plate 43, the initial compression of the spring 47 will increase, and a greater water pressure will be required to push the piston 44 open.
[0026] Furthermore, a scale is provided on the pressure relief pipe 41, which is located around the cap 48. The scale is marked with water pressure, indicating the water pressure required to open the piston 44.
[0027] The specific working method is as follows: When the water pressure is normal, water can enter the outer shell 1 through a water pipe 2, then flow through the drain hole 33, enter the valve body 31, and finally be discharged from another water pipe 2. If drainage is not required, the knob 34 can be turned to make the limit block 32 rotate. When the limit block 32 rotates, the drain end of the drain hole 33 will abut against the inner wall of the valve body 31, so that the water cannot be discharged.
[0028] When the water pressure is too high and pressure relief is needed, the water pressure will cause the piston 44 to be impacted, thus pushing the piston 44 open and exposing the side pipe 42. At this time, the high-pressure water will be discharged from the side pipe 42, reducing the water pressure in the entire system. According to the quality and standards of the pipeline system and drainage system, the water pressure at which it is discharged through the side pipe 42 can be adjusted. At this time, the cap 48 needs to be rotated, which drives the screw 49 to rotate. When the screw 49 rotates, the slide rod 46 moves. After the slide rod 46 moves, its initial position will change, and the degree of compression of the spring 47 will change. If the slide rod 46 moves towards the push plate 43, the initial compression of the spring 47 will increase. At this time, a greater water pressure is required to push the piston 44 open, so that the water can be discharged from the side pipe 42. There is a scale around the cap 48, which is marked with the water pressure, indicating the water pressure required to push the piston 44 open.
[0029] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. An automatic pressure relief safety valve for water, comprising a housing (1), wherein water pipes (2) are fixedly connected to both ends of the housing (1), characterized in that: The housing (1) is provided with a switch assembly (3), which includes a valve body (31). The valve body (31) is fixedly connected to the inside of the housing (1). A limit block (32) is rotatably connected inside the valve body (31). A drain hole (33) is provided on the limit block (32). A knob (34) is rotatably connected to the housing (1). The knob (34) is fixedly connected to the limit block (32). The housing (1) is provided with a pressure relief assembly (4). The pressure relief assembly (4) includes a pressure relief pipe (41) and a side pipe (42). The pressure relief pipe (41) is fixedly connected to one side of the housing (1). The side pipe (42) is fixedly connected to the end of the pressure relief pipe (41) near the housing (1).
2. The automatic pressure relief water safety valve according to claim 1, characterized in that: The pressure relief assembly (4) also includes a push plate (43) and a piston (44), which are slidably connected to the inner wall of the pressure relief pipe (41) and are fixedly connected.
3. The automatic pressure relief water safety valve according to claim 2, characterized in that: The pressure relief assembly (4) further includes a fixed sleeve (45), a slide rod (46), and a spring (47). The fixed sleeve (45) is fixedly connected to the push plate (43). The slide rod (46) is slidably connected inside the fixed sleeve (45) and slidably connected to the pressure relief pipe (41). The spring (47) is fixedly connected between the inner wall of the fixed sleeve (45) and the slide rod (46).
4. The automatic pressure relief water safety valve according to claim 3, characterized in that: The pressure relief assembly (4) also includes a cap (48) and a screw (49). The cap (48) is rotatably connected to the pressure relief pipe (41), and the screw (49) is fixedly connected to the cap (48). The screw (49) is threadedly connected to the slide rod (46).
5. The automatic pressure relief water safety valve according to claim 1, characterized in that: The pressure relief pipe (41) is equipped with a scale, which is located around the screw cap (48).