Frost valve

Abstract

The utility model provides a frost valve, and belongs to the technical field of valve manufacturing. The anti-freezing valve solves the problem that an existing anti-freezing valve does not have filtering and descaling functions. The anti-freezing valve comprises a valve body with a water inlet end and a water outlet end, the water inlet end is communicated with the water outlet end, the valve body is provided with an upper connector located at the top of the water outlet end and a lower connector located at the bottom of the water outlet end, the upper connector is connected with a vacuum breaker, and the lower connector is connected with an anti-freezing assembly. A filter screen for separating the water inlet end from the water outlet end is arranged in the mounting cavity, and a descaling assembly for removing scale is further arranged in the mounting cavity. The filter has the functions of filtering and scaling prevention, and is long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve manufacturing, in particular to an antifreeze valve. Background Art

[0002] The antifreeze valve is used to protect the hydraulic and / or water storage system from damage caused by cold. For example, the applicant has designed an antifreeze valve and applied for a patent [application number: 202321853667.7; authorization announcement number: CN220249114U], which includes a valve body connected to a pipeline, an upper interface and a lower interface are provided on the valve body, the upper interface is connected to a vacuum breaker, and the lower interface is connected to an antifreeze component, the antifreeze component includes an antifreeze pipe, and a support sleeve rod driven by a temperature bag is slidably provided in the antifreeze pipe. When the support sleeve rod moves upward, the liquid flow channel in the antifreeze component is opened, and when it moves downward, the liquid flow channel in the antifreeze component is closed.

[0003] The above-mentioned antifreeze valve can improve the anti-freeze cracking effect and protect the safety of equipment, but it cannot filter out impurities in the water and is prone to scale formation, which affects the working stability of the antifreeze component. In severe cases, it will cause blockage of parts and pipelines, affecting work efficiency and increasing operating costs. Summary of the invention

[0004] The utility model aims to solve the above problems existing in the prior art and provides an antifreeze valve with filtering and anti-scaling functions.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an antifreeze valve, comprising a valve body with a water inlet end and a water outlet end, the water inlet end and the water outlet end are connected, the valve body has an upper interface located at the top of the water outlet end and a lower interface located at the bottom of the water outlet end, the upper interface is connected to a vacuum breaker, and the lower interface is connected to an antifreeze component, characterized in that an installation cavity is provided in the water inlet end, a filter screen is provided in the installation cavity to separate the water inlet end and the water outlet end, and a descaling component for removing scale is also provided in the installation cavity.

[0006] In the above-mentioned antifreeze valve, the valve body has a connecting hole connected to the installation cavity, and the connecting hole is threadedly connected with a plug.

[0007] In the above-mentioned antifreeze valve, the filter screen is cylindrical, the side of the filter screen has an opening connected to the water inlet end, the top of the filter screen is limited to the installation groove of the installation cavity, the bottom of the filter screen is limited to the connecting hole, and the descaling component is located in the filter screen.

[0008] In the above-mentioned antifreeze valve, the top of the filter screen is fixedly connected with a top cover, which is inserted into the installation groove of the installation cavity. The bottom of the filter screen is fixedly connected with a bottom cover, which is located in the connecting hole. The outer wall of the bottom cover has a plurality of limiting protrusions that protrude outward and are embedded in the inner wall of the connecting hole.

[0009] In the above-mentioned antifreeze valve, a sealing gasket is provided between the end of the connecting hole and the plug, the top surface of the sealing gasket is supported by the bottom cover, and the bottom surface of the sealing gasket is in contact with the plug.

[0010] In the above-mentioned antifreeze valve, the descaling assembly comprises a descaling shell, the descaling shell has a plurality of meshes, and the descaling shell is filled with a solid antiscaling slow-release agent.

[0011] In the above-mentioned antifreeze valve, the descaling housing is confined within the filter screen.

[0012] Compared with the prior art, the antifreeze valve can filter and descale the water entering the water inlet to ensure clean water outlet, and the water after filtration and descaling will not cause scaling and clogging of the vacuum breaker and antifreeze components. The antifreeze valve has good working stability and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the antifreeze valve.

[0014] Figure 2 It is a structural sectional view of the antifreeze valve.

[0015] Figure 3 It is a three-dimensional structural diagram of the filter screen in the antifreeze valve.

[0016] Figure 4 It is a three-dimensional structural diagram of the descaling shell in the antifreeze valve.

[0017] In the figure, 1, valve body; 11, water inlet end; 12, water outlet end; 2, vacuum breaker; 3, antifreeze assembly; 4, filter screen; 41, opening; 42, top cover; 43, bottom cover; 431, limiting protrusion; 5, plug; 6, sealing gasket; 7, descaling shell; 71, vertical edge; 72, outer convex edge; 73, bottom plate; 731, limiting part; 8, solid antiscaling slow-release agent. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the antifreeze valve includes a valve body 1 having a water inlet end 11 and a water outlet end 12, the water inlet end 11 and the water outlet end 12 are connected, the valve body 1 has an upper interface located at the top of the water outlet end 12 and a lower interface located at the bottom of the water outlet end 12, the upper interface is connected to a vacuum breaker 2, the lower interface is connected to an antifreeze component 3, an installation cavity is provided in the water inlet end 11, a filter screen 4 is provided in the installation cavity to separate the water inlet end 11 and the water outlet end 12, and a descaling component for removing scale is also provided in the installation cavity.

[0020] The filter screen 4 in the antifreeze valve is used to filter impurities in the water, and the descaling component is used to remove scale. The water entering the water inlet end 11 passes through the filter screen 4 and the descaling component, and then flows out from the water outlet end 12. The outflowing water is clean and will not form scale. Of course, the water after filtration and descaling will not cause scaling and clogging of the vacuum breaker 2 and the antifreeze component 3. The antifreeze valve has good working stability and a long service life.

[0021] The valve body 1 has a connection hole connected to the installation cavity, and the connection hole is threadedly connected with a plug 5. The arrangement of the connection hole and the plug 5 facilitates the installation of the filter 4 and the descaling component. After a period of use, the plug 5 is unscrewed, which is also convenient for cleaning and replacing the filter 4 and the descaling component.

[0022] The filter screen 4 is cylindrical, and the side of the filter screen 4 has an opening 41 connected to the water inlet end 11. The top of the filter screen 4 is limited in the installation groove of the installation cavity, and the bottom of the filter screen 4 is limited in the connection hole. The descaling component is located in the filter screen 4. In this way, the structure is compact, and the filter screen 4 and the descaling component are easy to load and unload.

[0023] The top of the filter 4 is fixedly connected with a top cover 42, which is inserted into the mounting groove of the mounting cavity, and the bottom of the filter 4 is fixedly connected with a bottom cover 43, which is located in the connecting hole, and the outer wall of the bottom cover 43 has four circumferentially evenly distributed, outwardly protruding and embedded in the inner wall of the connecting hole. In this way, the filter 4 is firmly limited and will not be deflected by water impact, thereby ensuring the filtering effect.

[0024] A sealing gasket 6 is provided between the end of the connecting hole and the plug 5, the top surface of the sealing gasket 6 is supported on the bottom cover 43, and the bottom surface of the sealing gasket 6 is in contact with the plug 5. The sealing gasket 6 ensures sealing and avoids leakage. In this embodiment, the sealing gasket 6 is annular.

[0025] The descaling component includes a descaling shell 7, which has a plurality of meshes and is filled with a solid scale inhibitor 8. Water enters the descaling shell 7 and is descaled by the solid scale inhibitor 8. The solid scale inhibitor 8 is a prior art, which slowly dissolves in water and has an obvious solubility limit effect. Its molecules carry a large number of weakly electrically conductive groups, which produce weakly electrically interfering effects on cations and anions in water, quickly inactivate scaling factors in water, and fundamentally prevent scale generation. The solid scale inhibitor 8 in this embodiment is purchased from Jiangmen Lianfu Guangke New Material Technology Co., Ltd.

[0026] The descaling shell 7 is limited in the filter 4. This makes loading and unloading convenient and easy to replace. In this embodiment, the descaling shell 7 includes a body made of a stainless steel filter, the top of the body is a closed end, the body has a vertical edge 71 that divides the inner cavity of the filter 4 into a left cavity and a right cavity, the left cavity is connected to the opening 41, the body is located in the right cavity and the descaling shell 7 has an outer convex edge 72 that is convex in an arc surface, the bottom of the body is fixedly connected to a bottom plate 73, the bottom plate 73 has a plurality of water holes, the water holes facilitate water to flow into the body, and increase the descaling effect, the outer wall of the bottom plate 73 has a limiting portion 731 that is convex and embedded in the inner wall of the bottom cover 43, so that the descaling shell 7 is limited.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An antifreeze valve, comprising a valve body (1) having a water inlet end (11) and a water outlet end (12), wherein the water inlet end (11) and the water outlet end (12) are connected, the valve body (1) having an upper interface located at the top of the water outlet end (12) and a lower interface located at the bottom of the water outlet end (12), the upper interface being connected to a vacuum breaker (2), and the lower interface being connected to an antifreeze component (3), characterized in that: The water inlet end (11) is provided with an installation cavity, the installation cavity is provided with a filter screen (4) separating the water inlet end (11) from the water outlet end (12), and the installation cavity is also provided with a descaling component for removing scale.

2. The antifreeze valve according to claim 1, characterized in that: The valve body (1) has a connection hole connected to the installation cavity, and the connection hole is threadedly connected to a plug (5).

3. The antifreeze valve according to claim 2, characterized in that: The filter screen (4) is cylindrical in shape, and the side of the filter screen (4) has an opening (41) connected to the water inlet end (11). The top of the filter screen (4) is located in the installation groove of the installation cavity, and the bottom of the filter screen (4) is located in the connection hole. The descaling component is located in the filter screen (4).

4. The antifreeze valve according to claim 3, characterized in that: The top of the filter screen (4) is fixedly connected to a top cover (42), which is inserted into a mounting groove of the mounting cavity. The bottom of the filter screen (4) is fixedly connected to a bottom cover (43), which is located in the connecting hole. The outer wall of the bottom cover (43) has a plurality of limiting protrusions (431) that protrude outward and are embedded in the inner wall of the connecting hole.

5. The antifreeze valve according to claim 4, characterized in that: A sealing gasket (6) is provided between the end of the connection hole and the plug (5); the top surface of the sealing gasket (6) is supported by the bottom cover (43), and the bottom surface of the sealing gasket (6) is in contact with the plug (5).

6. The antifreeze valve according to any one of claims 1 to 5, characterized in that: The descaling component comprises a descaling shell (7), the descaling shell (7) has a plurality of meshes, and the descaling shell (7) is filled with a solid antiscaling slow-release agent (8).

7. The antifreeze valve according to claim 6, characterized in that: The descaling housing (7) is located within the filter screen (4).

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