Magnetic pressure reducing valve with filtering function

Abstract

The utility model provides a magnetic pressure reducing valve with a filtering function, and belongs to the technical field of valve manufacturing. The problem that an existing pressure reducing valve is poor in filtering performance is solved. The magnetic pressure reducing valve with the filtering function comprises a valve body, a valve cover and a cylindrical filter screen, the valve body is in threaded connection with the valve cover, a pressure reducing valve element is arranged in the valve body, the filter screen is arranged in the valve body and located at the inlet end of the valve body, the top end of the filter screen abuts against the inner wall of the valve body, and the bottom end of the filter screen is supported by a plug in threaded connection with the valve body. A radial hole communicated with the inlet end is radially formed in the filter screen, and a magnetic adsorption mechanism is arranged in the filter screen. The filter has the advantages of good filtering effect, convenience in cleaning and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve manufacturing, and particularly relates to a pressure reducing valve, and more particularly to a pressure reducing valve with magnetism and filtering. Background Art

[0002] Pressure reducing valves are mainly installed on branch pipes in high-rise buildings. They reduce the pressure of high-pressure water in the pipes to a safe range before entering the user's water meter, thereby ensuring pressure balance on the entire floor and water safety in the user's room.

[0003] For example, Chinese patent literature discloses a pressure reducing valve [application number: 202020674681.0; authorization announcement number: CN212389815U], which includes a valve body, a valve stem, and a valve cover. The valve stem is located in the valve core of the valve body and moves up and down. The valve cover is installed at the upper end of the valve body. A filter device is provided at the inlet end of the valve body, and the filter device is located on the radial surface of the valve body. An anti-leakage device is provided in the valve body, the anti-leakage device is located at the lower end of the valve core, and the anti-leakage device is connected to the lower end of the valve stem. The filter device includes a filter screen and a first plug. The filter screen is installed in the first installation groove and is pressed by the first plug. The first plug is fixed to the first opening by a threaded connection.

[0004] The above-mentioned pressure reducing valve can filter the water flow entering the valve body through the setting of the filter screen, thereby improving the cleanliness of the water outlet. However, the filter screen blocks all impurities on the outside. When the filter screen is removed for cleaning, the impurities still exist in the valve body, which is inconvenient to clean. In addition, the iron filings impurities in the water flow cannot be removed, and the filtering effect is still not ideal. Summary of the invention

[0005] The purpose of the utility model is to provide a pressure reducing valve with good filtering effect and convenient cleaning in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a magnetic and filtered pressure reducing valve, comprising a valve body, a valve cover and a cylindrical filter screen, the valve body and the valve cover are threadedly connected, a pressure reducing valve core is arranged in the valve body, the filter screen is arranged in the valve body and located at the inlet end of the valve body, the top end of the filter screen is in contact with the inner wall of the valve body, and the bottom end of the filter screen is supported by a plug threadedly connected to the valve body, characterized in that the filter screen is radially opened with radial holes connected to the inlet end, and a magnetic adsorption mechanism is arranged in the filter screen.

[0007] In the above-mentioned magnetic filter pressure reducing valve, the top end of the filter screen is provided with a cover plate for sealing the filter screen, and the cover plate abuts against the inner wall of the valve body.

[0008] In the above-mentioned magnetic and filtered pressure reducing valve, the valve body has a groove for embedding the cover plate, the outer wall of the bottom end of the filter screen has a radially outwardly protruding limiting portion, and the valve body has a limiting groove for embedding the limiting portion.

[0009] In the above-mentioned magnetic and filtered pressure reducing valve, the magnetic adsorption mechanism includes a magnet fixed at the inner end of the plug.

[0010] In the above-mentioned magnetic and filtered pressure reducing valve, the inner end of the plug is threadedly connected to a shell that covers the magnet but does not provide any means for the magnet to be attracted.

[0011] In the above-mentioned magnetic and filtered pressure reducing valve, the middle part of the inner end of the plug is threadedly connected with a screw located in the outer shell, the upper end of the screw touches the magnet, the top of the magnet touches the top wall of the outer shell, and the top of the outer shell is arranged close to the top of the filter.

[0012] In the above-mentioned magnetic and filtered pressure reducing valve, the valve body is provided with a test hole 1 connected to the inlet end, the test hole 1 is threadedly connected with a plugging cap 1, and the valve body is provided with a test hole 2 connected to the outlet end, the test hole 2 is threadedly connected with a plugging cap 2.

[0013] Compared with the prior art, the magnetic filter pressure reducing valve can filter iron impurities and other impurities, has good filtering effect, is easy to clean, easy to adjust the pressure, and has good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the structural explosion diagram of the magnetic and filtered pressure reducing valve.

[0015] Figure 2 This is a structural cross-sectional view of the magnetic and filtered pressure reducing valve.

[0016] In the figure, 1. valve body; 11. inlet end; 12. limit groove; 13. test hole one; 14. test hole two; 2. valve cover; 3. filter screen; 31. radial hole; 32. cover plate; 33. limit part; 4. pressure reducing valve core; 5. plug; 6. magnet; 7. housing; 8. screw; 9. plug cap one; 10. plug cap two. DETAILED DESCRIPTION

[0017] 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.

[0018] like Figure 1 and Figure 2As shown, the magnetic and filtered pressure reducing valve comprises a valve body 1, a valve cover 2 and a cylindrical filter screen 3, the valve body 1 and the valve cover 2 are threadedly connected, a pressure reducing valve core 4 is arranged in the valve body 1, the filter screen 3 is arranged in the valve body 1 and is located at the inlet end 11 of the valve body 1, the top end of the filter screen 3 is in contact with the inner wall of the valve body 1, the bottom end of the filter screen 3 is supported by a plug 5 threadedly connected to the valve body 1, the filter screen 3 is radially opened with a radial hole 31 connected to the inlet end 11, and a magnetic adsorption mechanism is arranged in the filter screen 3.

[0019] When the magnetic filter pressure reducing valve is in use, the water flow at the inlet end 11 enters the radial hole 31, flows through the filter screen 3 and the magnetic adsorption mechanism, and then enters the pressure reducing valve core 4, and then flows out from the outlet end of the valve body 1. The filter screen 3 filters the impurities in the water flow and retains the impurities in the filter screen 3. The magnetic adsorption mechanism adsorbs the iron filings impurities in the water flow, so that the filtering effect is good. When cleaning is needed, the plug 5 is unscrewed and the filter screen 3 is removed. Because the impurities and iron impurities are retained in the filter screen 3, the impurities will not remain in the valve body 1. The filter screen 3 and the magnetic adsorption mechanism can be cleaned from the outside, which is convenient to clean.

[0020] In further detail, the top of the filter 3 is provided with a cover plate 32 for covering it, and the cover plate 32 abuts against the inner wall of the valve body 1. During the cleaning process, the cover plate 32 prevents impurities that have entered the filter 3 from leaking out from the top of the filter 3, and the cleaning process is smooth and thorough. In this embodiment, the cover plate 32 is riveted to the top of the filter 3.

[0021] The valve body 1 has a groove for the cover plate 32 to be embedded, and the outer wall of the bottom end of the filter screen 3 has a radially outwardly protruding limiting portion 33. In this embodiment, the limiting portion 33 is a protruding steel sheet welded to the outer wall of the bottom end of the filter screen 3. The valve body 1 has a limiting groove 12 for the limiting portion 33 to be embedded. The cover plate 32 and the groove cooperate to ensure that the top end of the filter screen 3 is firmly positioned. The setting of the limiting portion 33 and the limiting groove 12 allows the bottom end of the filter screen 3 to be limited. The filter screen 3 will not rotate due to the impact of water flow during use, ensuring that the radial hole 31 is always connected to the inlet end 11 with the maximum area, ensuring the filtering effect and good working stability.

[0022] The magnetic adsorption mechanism comprises a magnet 6 fixed at the inner end of the plug 5. The magnet 6 adsorbs iron impurities in the water flow, and when cleaning, the magnet 6 is taken out with the plug 5, which is convenient for cleaning.

[0023] The inner end of the plug 5 is threadedly connected with a shell 7 that covers the magnet 6 but does not adsorb the magnet 6. The shell 7 protects and limits the magnet 6, so that the magnet 6 has good working stability. In the cleaning process, the shell 7 is unscrewed from the plug 5, and the plug 5 drives the magnet 6 to be pulled out of the shell 7. The shell 7 does not have magnetism, and the iron impurities originally adsorbed on the shell 7 under the magnetic force of the magnet 6 will fall off the shell 7, which is convenient for cleaning. In this embodiment, the shell 7 is made of copper material. In actual manufacturing, the shell 7 can be made of plastic.

[0024] The middle part of the inner end of the plug 5 is threadedly connected with a screw 8 located in the housing 7, the upper end of the screw 8 touches the magnet 6, the top of the magnet 6 touches the top wall of the housing 7, and the top of the housing 7 is arranged close to the top of the filter 3. The screw 8 lifts the magnet 6, the magnet 6 does not need to be too long, and the manufacturing cost is reduced. The screw 8 is adsorbed by the magnet 6, and the plug 5 can be a copper plug 5, which is easy to manufacture.

[0025] The valve body 1 is provided with a test hole 13 connected to the inlet end 11, and the test hole 13 is threadedly connected with a plugging cap 9. The valve body 1 is provided with a test hole 2 14 connected to the outlet end, and the test hole 2 14 is threadedly connected with a plugging cap 2 10. The test hole 13 and the test hole 2 14 can be connected to a pressure gauge or a flow meter, so that the pressure or flow at the inlet end 11 and the outlet end of the valve body 1 can be intuitively known, and the pressure regulation is convenient.

[0026] 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. A magnetic pressure reducing valve with a filter, comprising a valve body (1), a valve cover (2) and a cylindrical filter screen (3), wherein the valve body (1) and the valve cover (2) are threadedly connected, a pressure reducing valve core (4) is arranged in the valve body (1), the filter screen (3) is arranged in the valve body (1) and is located at the inlet end (11) of the valve body (1), the top end of the filter screen (3) abuts against the inner wall of the valve body (1), and the bottom end of the filter screen (3) is supported by a plug (5) threadedly connected to the valve body (1), characterized in that: The filter screen (3) is radially provided with a radial hole (31) connected to the inlet end (11), and a magnetic adsorption mechanism is provided inside the filter screen (3).

2. A magnetic and filtered pressure reducing valve according to claim 1, characterized in that: The top end of the filter screen (3) is provided with a cover plate (32) for sealing the filter screen, and the cover plate (32) abuts against the inner wall of the valve body (1).

3. The magnetic and filtered pressure reducing valve according to claim 2, characterized in that: The valve body (1) has a groove for the cover plate (32) to be embedded, the outer wall of the bottom end of the filter screen (3) has a radially outwardly protruding limiting portion (33), and the valve body (1) has a limiting groove (12) for the limiting portion (33) to be embedded.

4. The magnetic and filtered pressure reducing valve according to claim 3, characterized in that: The magnetic adsorption mechanism comprises a magnet (6) fixed at the inner end of the plug (5).

5. The magnetic and filtered pressure reducing valve according to claim 4, characterized in that: The inner end of the plug (5) is threadedly connected to a housing (7) that covers the magnet (6) but does not allow the magnet (6) to be adsorbed.

6. The magnetic and filtered pressure reducing valve according to claim 5, characterized in that: A screw (8) located in the housing (7) is threadedly connected at the middle of the inner end of the plug (5), the upper end of the screw (8) contacts the magnet (6), the top end of the magnet (6) contacts the top wall of the housing (7), and the top of the housing (7) is arranged close to the top of the filter screen (3).

7. A magnetic and filtered pressure reducing valve according to any one of claims 1 to 6, characterized in that: The valve body (1) is provided with a test hole (13) connected to the inlet end (11), and a plugging cap (9) is threadedly connected to the test hole (13). The valve body (1) is provided with a test hole (14) connected to the outlet end, and a plugging cap (10) is threadedly connected to the test hole (14).

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