Temperature-sensing automatic pressure relief device

Abstract

The utility model relates to the technical field of valves, in particular to a temperature-sensing automatic pressure relief device. A mounting bin is arranged in the valve body, a water outlet is formed in one side of the valve body, a water inlet is formed in the bottom of the valve body, a limiting seat is arranged in the water inlet, a limiting shell is further arranged in the water inlet, the limiting shell is located at the bottom of the limiting seat, and an ejector rod is movably arranged between the limiting seat and the limiting shell. A limiting block is arranged on the ejector rod, the outer side of the ejector rod is sleeved with a memory spring, the memory spring abuts against the position between the limiting block and the limiting shell, and the ejector rod is arranged at the bottom of the bolt. The pressure relief device has the advantages that the pressure relief flexibility and reliability are greatly improved, the pressure relief can be effectively realized no matter the water pressure exceeds the elastic potential energy of an extrusion spring or the water temperature meets the requirement of a memory spring or the manual operation is performed, the pressure relief device adapts to various different working scenes and pressure and temperature conditions, and the stable operation of a water pipe system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a temperature-sensitive automatic pressure relief device. Background Art

[0002] In the operation of the water pipe system, it is crucial to maintain the stability of pressure and temperature. However, existing water pipe pressure relief devices often have many defects. Common pressure relief devices have a single function and can usually only relieve pressure based on water pressure. They cannot cope with complex situations such as water temperature changes, resulting in the water pipe system still facing huge pressure when the water temperature is abnormal, increasing the risk of water pipe damage and failure. Utility Model Content

[0003] The utility model aims to provide a temperature-sensitive automatic pressure relief device to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, which includes a valve body, a mounting bin is arranged in the valve body, a water outlet is arranged on one side of the valve body, a water inlet is arranged at the bottom of the valve body, a limit seat is arranged in the water inlet, a limit shell is also arranged in the water inlet, the limit shell is located at the bottom of the limit seat, a push rod is movably arranged between the limit seat and the limit shell, a limit block is arranged on the push rod, a memory spring is sleeved on the outer side of the push rod, the memory spring is set between the limit block and the limit shell, the push rod is arranged at the bottom of the bolt, the bolt is arranged at the inner bottom of the long nut, the long nut is located in the mounting bin, a mounting cover is arranged at the bottom of the long nut, the mounting cover is set at the opening between the water inlet and the mounting bin, a pressure relief rod is arranged on the inner top of the long nut, a valve cover is arranged on the pressure relief rod, the valve cover is arranged at the top of the valve body, an extrusion spring is sleeved on the outer side of the long nut, and the extrusion spring is set between the mounting cover and the valve cover.

[0005] As a preferred embodiment of the utility model, a sealing gasket is arranged in the installation cover, and a sealing ring is arranged on the inner wall of the valve cover in contact with the pressure relief rod.

[0006] As a preferred embodiment of the utility model, the top of the pressure relief rod is arranged on the outside of the valve body, and a handle is movably provided on the top of the pressure relief rod through a latch.

[0007] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0008] The utility model greatly improves the flexibility and reliability of pressure relief by setting three pressure relief modes. No matter the water pressure exceeds the elastic potential energy of the extrusion spring, the water temperature reaches the requirement of the memory spring, or it is manually operated, pressure relief can be effectively achieved, thereby adapting to various working scenes and pressure and temperature conditions, and ensuring the safe and stable operation of the water pipe system.

[0009] The connection relationship between the internal components of the utility model is tight and reasonable. For example, the coordinated cooperation of the push rod, the limit block, the memory spring, the extrusion spring, etc. makes the pressure relief action accurate and rapid, and can respond to the changes in pressure and temperature in the water pipe in a timely and effective manner, reducing water pipe damage and potential dangers caused by abnormal pressure or temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a side sectional view of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the utility model after the valve body 1 is removed;

[0013] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0014] Figure numerals: valve body 1, water inlet 1-1, water outlet 1-2, mounting bin 1-3, limit seat 2, push rod 3, limit block 30, memory spring 4, limit shell 5, bolt 6, long nut 7, installation cover 8, sealing gasket 9, extrusion spring 10, valve cover 11, pressure relief rod 12, latch 13, handle 14, sealing ring 15. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0016] like Figure 1-Figure 4As shown, a temperature-sensing automatic pressure relief device proposed by the utility model comprises a valve body 1, a mounting bin 1-3 is provided in the valve body 1, a water outlet 1-2 is provided on one side of the valve body 1, a water inlet 1-1 is provided at the bottom, a limiting seat 2 is arranged in the water inlet 1-1, and a limiting shell 5 is also provided in the water inlet 1-1, the limiting shell 5 is located at the bottom of the limiting seat 2, a push rod 3 is movably arranged between the limiting seat 2 and the limiting shell 5, a limiting block 30 is arranged on the push rod 3, a memory spring 4 is sleeved on the outer side of the push rod 3, the memory spring 4 is abutted between the limiting block 30 and the limiting shell 5, the push rod 3 is located at the bottom of the bolt 6, and the bolt 6 is arranged at the bottom of the long nut 7 The long nut 7 is in the installation bin 1-3, and a mounting cover 8 is provided at the bottom of the long nut 7, and the mounting cover 8 is abutted against the passage between the water inlet 1-1 and the installation bin 1-3. A pressure relief rod 12 is provided at the inner top of the long nut 7, and a valve cover 11 is provided on the pressure relief rod 12, and the valve cover 11 is provided at the top of the valve body 1. An extrusion spring 10 is sleeved on the outer side of the long nut 7, and the extrusion spring 10 abuts between the installation cover 8 and the valve cover 11; a sealing gasket 9 is provided in the installation cover 8, and a sealing ring 15 is provided on the inner wall where the valve cover 11 contacts the pressure relief rod 12; the top of the pressure relief rod 12 is located on the outside of the valve body 1, and a handle 14 is movably provided at the top through a latch 13.

[0017] The utility model has three pressure relief modes; the first mode: when the water pressure inside the water pipe exceeds the elastic potential energy of the extrusion spring 10, the strong water pressure will lift the installation cover 8, causing the extrusion spring 10 to contract; in this way, water can flow from the water inlet 1-1 into the installation bin 1-3, and finally be discharged from the water outlet 1-2, thereby achieving the purpose of pressure relief;

[0018] The second mode: once the water temperature in the water pipe reaches the temperature requirement set by the memory spring 4, the memory spring 4 will expand, and then push the limit block 30, so that the push rod 3 will push up the installation cover 8. At this time, water flows into the installation bin 1-3 from the water inlet 1-1, and then is discharged from the water outlet 1-2, thereby achieving the purpose of pressure relief;

[0019] The third mode: by manually turning the handle 14 to erect it, the latch 13 and the handle 14 cooperate with each other to pull the rod upward, thereby driving the installation cover 8 to rise. In this way, water can flow from the water inlet 1-1 into the installation bin 1-3, and finally be discharged from the water outlet 1-2, thereby achieving effective pressure relief.

[0020] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A temperature-sensitive automatic pressure relief device, comprising a valve body (1), wherein a mounting chamber (1-3) is arranged in the valve body (1), a water outlet (1-2) is arranged on one side of the valve body (1), and a water inlet (1-1) is arranged at the bottom of the valve body (1), characterized in that: A limit seat (2) is arranged in the water inlet (1-1), and a limit shell (5) is also arranged in the water inlet (1-1). The limit shell (5) is located at the bottom of the limit seat (2). A push rod (3) is movably arranged between the limit seat (2) and the limit shell (5). A limit block (30) is arranged on the push rod (3). A memory spring (4) is sleeved on the outer side of the push rod (3). The memory spring (4) is arranged between the limit block (30) and the limit shell (5). The push rod (3) is arranged at the bottom of a bolt (6), and the bolt (6) is arranged on a long nut (7). ), the long nut (7) is located in the installation bin (1-3), a mounting cover (8) is provided at the bottom of the long nut (7), the mounting cover (8) is arranged against the opening between the water inlet (1-1) and the installation bin (1-3), a pressure relief rod (12) is provided at the inner top of the long nut (7), a valve cover (11) is provided on the pressure relief rod (12), the valve cover (11) is arranged on the top of the valve body (1), and an extrusion spring (10) is sleeved on the outer side of the long nut (7), the extrusion spring (10) is arranged between the mounting cover (8) and the valve cover (11).

2. A temperature-sensitive automatic pressure relief device according to claim 1, characterized in that: A sealing gasket (9) is arranged inside the mounting cover (8), and a sealing ring (15) is arranged on the inner wall of the valve cover (11) in contact with the pressure relief rod (12).

3. A temperature-sensitive automatic pressure relief device according to claim 2, characterized in that: The top of the pressure relief rod (12) is arranged outside the valve body (1), and a handle (14) is movably arranged on the top of the pressure relief rod via a latch (13).

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