Freeze protection valve with temperature control device

Abstract

A freeze protection valve with a temperature control device. The freeze protection valve comprises a valve body, wherein a temperature-sensitive shut-off valve is provided at the top of the valve body, a drainage assembly is provided at the bottom of the valve body, and screws are provided at four corners of the top of the valve body; a mounting base is provided inside the temperature-sensitive shut-off valve, and a diaphragm body is provided at the top of the mounting base; and a valve stem I is provided inside the temperature-sensitive shut-off valve, a spring I is provided inside the valve stem I, a memory alloy spring I is sleeved on the surface of the valve stem I, and a sealing gasket is fixedly connected to the bottom of the valve stem I. In the present application, the valve stem I, the memory alloy spring I and the spring I are used for controlling the opening and closing of the valve body, and solves the problem in the prior art that it is not possible to control the opening and closing of a valve body on the basis of the temperature of a water flow, and increases the service life of the freeze protection valve.

Description

An antifreeze valve with a temperature control device

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202421610307.9, filed on July 9, 2024, entitled "An Antifreeze Valve with Temperature Control Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of antifreeze valve technology, specifically an antifreeze valve with a temperature control device. Background Technology

[0004] According to a patent published on the China Patent Network, the patent title is "An Integrated Anti-freeze Pressure Relief Valve," patent number 201710463090.1. This invention discloses an integrated anti-freeze pressure relief valve, including a valve body with a water channel for water flow. The valve body is equipped with an anti-freeze component that can block the water channel. When the ambient temperature is lower than a set temperature, the anti-freeze component automatically opens the water channel to drain water. Before the water heater system reaches the critical crystallization temperature, the integrated anti-freeze pressure relief valve keeps it in a flowing state. When the water channel absorbs sufficient heat energy carried by the flowing water and relative flow generates… After frictional heat dissipation, the water system can always remain above the critical crystallization temperature, thus preventing it from freezing and cracking. The valve body is also equipped with a pressure relief device that can block the water passage. When the water pressure in the water passage is higher than the set value, the pressure relief device automatically opens the water passage to drain and reduce pressure, thereby simultaneously achieving the functions of antifreeze and pressure relief. The structure is simple, safe, reliable, and easy to install and use in homes. However, the antifreeze valve mentioned above does not have a temperature control function and cannot control the opening and closing of the valve body according to the temperature of the water flow. This greatly limits the service life of the antifreeze valve, and traditional electric heating or combustion heating is prone to failure when there is no power.

[0005] Therefore, the antifreeze valve needs to be redesigned and modified to effectively prevent it from failing to open and close according to the temperature of the water flow.

[0006] Utility Model Content

[0007] To address the problems mentioned in the background art, the purpose of this utility model is to provide an antifreeze valve with a temperature control device, which has the advantage of opening and closing the valve body according to the temperature of the water flow, thus solving the problem that the valve body cannot be opened and closed according to the temperature of the water flow, and that traditional electric heating or combustion heating fails without electricity.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an antifreeze valve with a temperature control device, comprising a valve body, a temperature-sensing shut-off valve at the top of the valve body, a drainage assembly at the bottom of the valve body, screws at the four corners of the top of the valve body, a mounting base inside the temperature-sensing shut-off valve, a vent hole on the surface of the mounting base, a diaphragm body at the top of the mounting base, a valve stem 1 inside the temperature-sensing shut-off valve, a spring 1 inside the valve stem 1, a shape memory alloy spring 1 sleeved on the surface of the valve stem 1, a sealing gasket fixedly connected to the bottom of the valve stem 1, a valve stem 2 inside the drainage assembly, a shape memory alloy spring 2 inside the valve stem 2, a spring 2 sleeved on the surface of the valve stem 2, and limit pads on both sides of the temperature-sensing shut-off valve.

[0009] As a preferred embodiment of this invention, sealing rings are provided on both sides of the inner cavity of the drainage component, and the sealing rings are used in conjunction with the drainage component.

[0010] As a preferred embodiment of this invention, a filter screen is provided on the right side of the valve body cavity, and the filter screen is used in conjunction with the valve body.

[0011] As a preferred embodiment of this invention, the right side of the valve body surface is provided with helical teeth, which are used in conjunction with the valve body.

[0012] As a preferred embodiment of this invention, a sealing recess is provided at the bottom of the valve stem two, and the sealing recess is used with the valve stem two.

[0013] As a preferred embodiment of this invention, protrusions are provided on both sides of the bottom of the drainage component's inner cavity, and the protrusions are used in conjunction with the sealing recesses.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model antifreeze valve changes the traditional phenomenon that the valve body cannot be controlled to open and close according to the temperature of the water flow. It adopts a valve stem, a shape memory alloy spring and a spring to open and close, so the valve body can be controlled to open and close according to the temperature of the water flow, thus not limiting the service life of the antifreeze valve.

[0016] 2. By setting a sealing ring, this utility model can make the drainage component more airtight and avoid water leakage.

[0017] 3. This utility model, through the setting of the filter screen, can filter the water flow inside the valve body and prevent the valve body from having too many internal impurities.

[0018] 4. The spiral teeth of this utility model enable a more secure connection between the right side of the valve body surface and the external pipeline, increasing the ease of connection.

[0019] 5. By setting a sealing recess, this utility model enables the valve stem two to be adjusted up and down more stably, thereby increasing its sealing performance.

[0020] 6. The protrusion in this invention improves the sealing performance of the valve stem and prevents water leakage. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the structure of this utility model;

[0022] Figure 2 is a cross-sectional view of the structure of this utility model;

[0023] Figure 3 is an enlarged view of point A in structural diagram 2 of this utility model;

[0024] Figure 4 is a perspective view of the valve stem, shape memory alloy spring, and spring of this utility model.

[0025] Figure 5 is a perspective view of the filter screen of this utility model.

[0026] In the diagram: 1. Valve body; 2. Temperature-sensitive shut-off valve; 3. Drain assembly; 4. Screw; 5. Mounting base; 6. Diaphragm body; 7. Valve stem one; 8. Spring one; 9. Memory alloy spring one; 10. Sealing gasket; 11. Valve stem two; 12. Memory alloy spring two; 13. Spring two; 14. Limiting gasket; 15. Sealing ring; 16. Filter screen; 17. Helical teeth; 18. Sealing recess; 19. Protrusion. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] As shown in Figures 1 to 5, the present invention provides an antifreeze valve with a temperature control device, comprising a valve body 1, a temperature-sensitive shut-off valve 2 at the top of the valve body 1, a drainage assembly 3 at the bottom of the valve body 1, screws 4 at the four corners of the top of the valve body 1, a mounting base 5 inside the temperature-sensitive shut-off valve 2, a vent hole on the surface of the mounting base 5, a diaphragm body 6 at the top of the mounting base 5, a valve stem 7 inside the temperature-sensitive shut-off valve 2, a spring 8 inside the valve stem 7, a shape memory alloy spring 9 on the surface of the valve stem 7, a sealing gasket 10 fixedly connected to the bottom of the valve stem 7, a valve stem 11 inside the drainage assembly 3, a shape memory alloy spring 12 inside the valve stem 11, a spring 13 on the surface of the valve stem 11, and limit pads 14 on both sides of the temperature-sensitive shut-off valve 2.

[0029] Referring to Figure 2, sealing rings 15 are provided on both sides of the inner cavity of the drainage component 3, and the sealing rings 15 are used in conjunction with the drainage component 3.

[0030] As a technical optimization of this utility model, the sealing ring 15 can make the drainage component 3 more airtight and prevent water leakage.

[0031] Referring to Figure 2, a filter screen 16 is provided on the right side of the inner cavity of the valve body 1. The filter screen 16 is used in conjunction with the valve body 1.

[0032] As a technical optimization of this utility model, the filter screen 16 can filter the water flow inside the valve body 1, preventing excessive impurities from appearing inside the valve body 1.

[0033] Referring to Figure 2, a helical tooth 17 is provided on the right side of the surface of the valve body 1, and the helical tooth 17 is used in conjunction with the valve body 1.

[0034] As a technical optimization of this utility model, the spiral teeth 17 enable the right side of the valve body 1 surface to be more securely connected to the external pipeline, thus increasing the convenience of connection.

[0035] Referring to Figure 3, a sealing recess 18 is provided at the bottom of the valve stem 11, and the sealing recess 18 is used with the valve stem 11.

[0036] As a technical optimization of this utility model, by setting the sealing recess 18, the valve stem 11 can be adjusted up and down more stably, thereby increasing its sealing performance.

[0037] Referring to Figure 3, protrusions 19 are provided on both sides of the bottom of the inner cavity of the drainage component 3. The protrusions 19 are used in conjunction with the sealing recesses 18.

[0038] As a technical optimization of this utility model, the setting of the protrusion 19 can improve the sealing performance of the valve stem 11 and avoid water leakage.

[0039] The working principle and usage process of this utility model are as follows: First, water flows through the interior of valve body 1 to the interior of temperature-sensitive shut-off valve 2. When the shape memory alloy spring 9 inside the temperature-sensitive shut-off valve 2 senses cold water, it will contract. When the shape memory alloy spring 9 contracts, spring 8 will push the valve stem 7 downward. Then, the pressure difference mounting seat 5 will also move downward to block the water inlet. Conversely, when it encounters warm water, the shape memory alloy spring 9 will expand. Its expansion force will be greater than that of spring 8, loosening the mounting seat 5 to allow flow. Then, the cold water remaining inside valve body 1 will contract through the shape memory alloy spring 12. After the shape memory alloy spring 12 contracts, spring 13 will lift the valve stem 11 upward, and its drain outlet will leak out. At normal temperature, the elasticity of the shape memory alloy is greater than that of a normal spring, while below the set temperature, the elasticity of the shape memory alloy is less than that of a normal spring. The remaining cold water will be discharged through the drain assembly 3, thus achieving the effect of opening and closing valve body 1 according to the temperature of the water flow.

[0040] In summary, this antifreeze valve with a temperature control device changes the traditional situation where the valve body cannot be controlled to open and close according to the temperature of the water flow. By using valve stem 7, shape memory alloy spring 9, and spring 8 for opening and closing, the valve body 1 can be controlled to open and close according to the temperature of the water flow, thus not limiting the service life of the antifreeze valve.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antifreeze valve carrying a temperature control device, comprising a valve body (1), characterized in that: A temperature-sensitive shut-off valve (2) is provided at the top of the valve body (1), a drainage assembly (3) is provided at the bottom of the valve body (1), screws (4) are provided at the four corners of the top of the valve body (1), a mounting seat (5) is provided inside the temperature-sensitive shut-off valve (2), a vent hole is provided on the surface of the mounting seat (5), a diaphragm body (6) is provided at the top of the mounting seat (5), a valve stem (7) is provided inside the temperature-sensitive shut-off valve (2), a spring (8) is provided inside the valve stem (7), a memory alloy spring (9) is sleeved on the surface of the valve stem (7), a sealing gasket (10) is fixedly connected to the bottom of the valve stem (7), a valve stem (11) is provided inside the drainage assembly (3), a memory alloy spring (12) is provided inside the valve stem (11), a spring (13) is sleeved on the surface of the valve stem (11), and limit pads (14) are provided on both sides of the temperature-sensitive shut-off valve (2).

2. The antifreeze valve with a temperature control device according to claim 1, characterized in that: Both sides of the inner cavity of the drainage component (3) are provided with sealing rings (15), which are used in conjunction with the drainage component (3).

3. The antifreeze valve with a temperature control device according to claim 1, characterized in that: A filter screen (16) is provided on the right side of the inner cavity of the valve body (1), and the filter screen (16) is used in conjunction with the valve body (1).

4. The antifreeze valve with a temperature control device according to claim 1, characterized in that: The right side of the valve body (1) is provided with helical teeth (17), which are used in conjunction with the valve body (1).

5. The antifreeze valve with a temperature control device according to claim 1, characterized in that: A sealing recess (18) is provided at the bottom of the valve stem (11), and the sealing recess (18) is used with the valve stem (11).

6. The antifreeze valve with a temperature control device according to claim 5, characterized in that: The drainage component (3) has protrusions (19) on both sides of the bottom of the inner cavity, and the protrusions (19) are used in conjunction with the sealing recess (18).

Images