Safety valve with adjustable pressure

Abstract

The utility model provides a pressure-adjustable safety valve which comprises a pressure relief pipe connected to a pipe body, a top plug, a spring piece and an adjusting piece are sequentially arranged in the pressure relief pipe, a water passing opening is formed between the pressure relief pipe and the pipe body, a pressure relief opening is formed in the pressure relief pipe, and the spring piece abuts against the top plug and the adjusting piece. And an operation part for operating the adjusting piece to move towards the top plug is arranged outside the pressure relief pipe. According to the safety valve, the pressure relief pressure can be adjusted through the operation part, the conditions of water leakage and water dripping when the safety valve is applied to some areas with high water pressure are avoided, the use limitation of the safety valve is solved, and the use area of the safety valve is widened.

Description

Technical Field

[0001] The utility model relates to a pressure-adjustable safety valve. Background Art

[0002] Some electric water heaters are equipped with safety valves to protect the inner tank of the water heater and prevent damage to the inner tank due to excessive water pressure. However, due to the different water pressures in different regions of my country, the safety valves currently on sale have a fixed pressure relief pressure. When the safety valve is used in areas with excessively high water pressure, it is easy for the safety valve to drip for a long time. Therefore, it is necessary to make further improvements. Utility Model Content

[0003] The utility model aims to overcome the above problems and provide a pressure-adjustable safety valve, which can adjust the pressure value according to actual needs.

[0004] To achieve the above-mentioned purpose, the utility model provides a pressure-adjustable safety valve, which includes a pressure relief pipe connected to a pipe body, a top plug, a spring member and an adjusting member are sequentially arranged in the pressure relief pipe, a water outlet is arranged between the pressure relief pipe and the pipe body, a pressure relief port is arranged on the pressure relief pipe, the spring member respectively supports the top plug and the adjusting member, and an operating part for operating the adjusting member to move toward the top plug is arranged outside the pressure relief pipe.

[0005] In one or more embodiments, the adjusting member is threadedly connected to the inner wall of the pressure relief pipe.

[0006] In one or more embodiments, the other end of the adjusting member relative to the top plug has a connecting column extending out of the pressure relief pipe, and the operating part is connected to the connecting column.

[0007] In one or more embodiments, the other end of the adjusting member relative to the top plug has a connecting column extending out of the pressure relief pipe, the connecting column abuts against the operating part, and the operating part is threadedly connected to the pressure relief pipe.

[0008] In one or more embodiments, a sealing portion is provided in the pressure relief pipe, the sealing portion has a hole for the connecting column to pass through, and the sealing portion is provided between the adjusting member and the operating portion.

[0009] In one or more embodiments, the sealing portion includes a structure and a sealing ring, the sealing ring is sleeved on the structure, and the structure is threadedly connected to the inner wall of the pressure relief pipe.

[0010] In one or more embodiments, the pressure relief port is connected to a water pipe, and a connecting pipe recess is provided on an outer surface of the water pipe.

[0011] Compared with the background technology, the utility model has the following effects: the safety valve can adjust the pressure relief pressure through the operating part, avoiding leakage and dripping when the safety valve is used in some areas with high water pressure, solving the limitation of the use of the safety valve and widening the use area of ​​the safety valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an exploded view of a safety valve according to an embodiment of the utility model;

[0013] Figure 2 It is a cross-sectional view of a safety valve according to an embodiment of the utility model. DETAILED DESCRIPTION

[0014] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0015] Example 1

[0016] Please see attached Figure 1-2 The utility model provides a pressure-adjustable safety valve, which includes a pressure relief pipe 2 connected to a pipe body 1, a top plug 3, a spring member 4 and an adjusting member 5 are arranged in sequence in the pressure relief pipe, a water outlet 6 is arranged between the pressure relief pipe 2 and the pipe body 1, and the top plug can be used to plug the water outlet, a pressure relief outlet is arranged on the pressure relief pipe, the spring member 4 respectively abuts against the top plug 3 and the adjusting member 5, and an operating part 7 for operating the adjusting member 5 to move toward the top plug 3 is arranged outside the pressure relief pipe 2. When the safety valve is connected to the pipeline, when the water pressure passing through the pipe body is greater than the pressure of the spring member, the top plug will be pushed open, and after the water outlet is opened, the water in the pipe body will flow out from the pressure relief port. The user can increase the pressure of the safety valve to a slightly greater pressure than the water pressure of daily water according to the water pressure of daily water. Specifically, the adjusting member is controlled to move toward the top plug by the operating part, so that the pressure of the spring member increases to be greater than the water pressure, and the water outlet is sealed by the top plug.

[0017] The adjusting member 5 is threadedly connected to the inner wall of the pressure relief pipe 2. The other end of the adjusting member 5 relative to the top plug has a connecting column 51 extending out of the pressure relief pipe. The operating part 7 is connected to the connecting column. The user drives the adjusting member to rotate by rotating the operating part, thereby making the adjusting member approach or move away from the top plug.

[0018] The pressure relief pipe 2 is provided with a sealing part 8, which has a hole 9 for the connection column 51 to pass through. The sealing part is provided between the adjustment part and the operating part. By providing the sealing part, the sealing performance can be enhanced to prevent water from flowing out from between the adjustment part and the operating part. Preferably, the sealing part includes a structure 81 and a sealing ring 82, which is sleeved on the structure. The structure is threadedly connected to the inner wall of the pressure relief pipe, which can fix the position of the sealing part. When the user twists the operating part, the sealing part will not be displaced, ensuring that the sealing part always remains sealed.

[0019] The pressure relief port is connected to a water pipe 10, and a connecting concave position is provided on the outer surface of the water pipe to facilitate the water pipe to be connected to a drainage hose, so that the user can conveniently guide the depressurized water to a designated location for collection or discharge.

[0020] Example 2

[0021] The difference between Example 2 and Example 1 is that the other end of the adjusting member 5 relative to the top plug has a connecting column 51 extending from the pressure relief pipe, the connecting column abuts against the operating part 7, and the operating part 7 is threadedly connected to the pressure relief pipe 2. By twisting the operating part to move toward the tube body, the adjusting member is controlled to approach the top plug.

[0022] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A pressure-adjustable safety valve, characterized in that: The invention comprises a pressure relief pipe (2) connected to a pipe body (1), wherein a top plug (3), a spring member (4) and an adjusting member (5) are arranged in sequence in the pressure relief pipe, a water outlet (6) is arranged between the pressure relief pipe (2) and the pipe body (1), a pressure relief outlet is arranged on the pressure relief pipe, the spring member (4) respectively abuts against the top plug (3) and the adjusting member (5), an operating part (7) for operating the adjusting member (5) to move toward the top plug (3) is arranged outside the pressure relief pipe (2), the adjusting member (5) has a connecting column (51) extending out of the pressure relief pipe at the other end relative to the top plug, the connecting column abuts against the operating part (7), and the operating part (7) is threadedly connected to the pressure relief pipe (2).

2. A pressure-adjustable safety valve according to claim 1, characterized in that: The pressure relief pipe (2) is provided with a sealing portion (8) therein, the sealing portion having a hole (9) for the connecting column (51) to pass through, and the sealing portion is arranged between the adjusting member and the operating portion.

3. A pressure-adjustable safety valve according to claim 2, characterized in that: The sealing part comprises a structure (81) and a sealing ring (82), wherein the sealing ring is sleeved on the structure, and the structure is threadedly connected to the inner wall of the pressure relief pipe.

4. The pressure-adjustable safety valve according to claim 1, characterized in that: The pressure relief port is connected to a water pipe (10), and a connecting pipe recess is provided on the outer surface of the water pipe.

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