Filter

Abstract

The utility model discloses a filter, relates to the field of water purification equipment, and adopts the technical scheme that the filter comprises a valve body, a cover body and a filter element assembly positioned in the valve body, the cover body is provided with a water inlet and a water outlet which are communicated with the interior of the valve body, and the valve body is provided with a blow-off pipe communicated with the valve body; the filter element assembly comprises a hollow framework and a filter screen arranged on the outer side of the hollow framework, the two ends of the hollow framework are communicated with the water inlet and the blow-off pipe respectively, a plurality of through grooves are formed in the inner wall of the hollow framework, and the filter element assembly is wrapped with annular filter cotton. According to the utility model, the outer side of the filter element assembly is sleeved with the filter cotton, the filter screen is used for carrying out primary filtration, and the filter cotton is used for carrying out secondary filtration, so that the dual-filtration effect is achieved, the filtration effect of the filter can be greatly improved, and the current water filtration requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of water purification equipment, and more specifically, to a filter. Background Art

[0002] Before tap water passes through the water supply network and reaches the water terminal, it needs to pass through many pipes. There are a lot of impurities such as mud, rust, and floating matter in the pipes. If they are not filtered, it will cause secondary pollution of the water.

[0003] Therefore, most water systems now use filters to filter water at the source before entering the water terminal. This can not only effectively remove secondary pollution and reduce water pollution diseases, but also remove solid impurities, protect the safety of the water system, and reduce system maintenance costs. However, existing filters usually only have a single-layer filter mesh inside for filtration, and the filtration effect is poor, which cannot well meet the current users' high requirements for water quality. Utility Model Content

[0004] The purpose of this utility model is to provide a filter in order to solve the above problems.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a filter, including a valve body, a cover body and a filter element assembly located in the valve body, the cover body is provided with a water inlet and a water outlet connected to the interior of the valve body, the valve body is provided with a sewage pipe connected thereto, the filter element assembly includes a hollow skeleton and a filter screen arranged on the outside of the hollow skeleton, the two ends of the hollow skeleton are respectively connected to the water inlet and the sewage pipe, and the inner wall of the hollow skeleton is provided with a number of through grooves, and the filter element assembly is wrapped with annular filter cotton.

[0006] By installing filter cotton on the outside of the filter element assembly, using the filter mesh for the first filtration and the filter cotton for the second filtration, the double filtration effect can greatly improve the filtration effect of the filter and meet the current water quality filtration requirements.

[0007] Preferably, one end of the filter cotton is in contact with the inner wall of the valve body, and the other end of the filter cotton is in contact with the inner wall of the cover body.

[0008] Since the axial direction of the water inlet and the axial direction of the water outlet are perpendicular to each other, and the filter screen and filter cotton are located between the water inlet and the water outlet, when water flows through, it can pass through the filter cotton more completely, thereby achieving the filtering effect of the filter cotton and further improving the filtering effect of the filter.

[0009] Preferably, the filter cotton is made of PP material.

[0010] By adopting PP material, it is possible to effectively control the filtration accuracy and remove various particulate impurities in the filtered liquid, while also providing good shape and chemical stability, thereby extending the service life and reducing the cost. At the same time, because the PP filter cotton has a fine fiber layer inside and a coarse and loose fiber layer outside, it forms a double-layer fiber structure, which can effectively reduce pressure loss and maintain stable filtration efficiency.

[0011] Preferably, there is a gap between the filter cotton and the inner wall of the valve body.

[0012] By setting the gap, a small amount of clean water can be stored, which is beneficial to the continuous filtering and purification effect of the water flow.

[0013] Preferably, the valve body is integrally formed with a ring around the sewage pipe, one end of the hollow skeleton is integrally formed with an annular protrusion extending into the ring and fitting with its inner wall, and the other end of the hollow skeleton is integrally formed with an abutment ring for abutting the edge of the water inlet.

[0014] By setting the annular protrusion, the center lines of the hollow skeleton, the annular protrusion and the sewage pipe can be made to coincide with each other, facilitating the rapid entry of water, and can also play a good positioning and abutment role, facilitating assembly. At the same time, combined with the abutment ring, the connection between the annular protrusion and the sewage pipe and between the abutment ring and the water inlet is relatively sealed, ensuring that water can only enter from the water inlet and flow out from the water outlet after passing through the hollow skeleton, the filter screen and the filter cotton, thereby leaving more impurity particles in the hollow skeleton, so that they can be discharged through the sewage pipe for treatment.

[0015] Preferably, an annular groove is provided on the outer side surface of the hollow skeleton, the filter screen is surrounded in the annular groove and the thickness of the filter screen is not greater than the groove depth of the annular groove, and the filter screen is made of stainless steel.

[0016] By setting the ring groove, the positioning and installation of the filter screen is facilitated, which improves the assembly efficiency and quality. In addition, since the filter screen is made of stainless steel, its service life can be greatly extended.

[0017] Preferably, the valve body is made of plastic and is transparent.

[0018] Since the valve body is transparent, the interior of the valve body can be observed so that the filter cotton and filter element components can be replaced and cleaned in time to improve the quality of the filtered water.

[0019] Preferably, the valve body is threadedly connected to the cover body, and two sealing rings are provided at the connection of the valve body.

[0020] Through the above arrangement, the valve body and the cover body can be quickly disassembled when cleaning is needed, which is more practical and convenient. The connecting thread is located between the two sealing rings, so the use of two sealing rings can greatly improve the sealing effect of the valve body and the cover body after assembly, avoiding water leakage and the like.

[0021] Preferably, the drain pipe is made of brass, a drain valve is provided on the drain pipe, and the drain pipe is threadedly connected to the valve body.

[0022] The above arrangement facilitates the assembly of the sewage pipe and the valve body, and also facilitates rapid control of sewage discharge, making it more convenient to use.

[0023] Preferably, the cover, water inlet and water outlet are an integrated structure and are all made of stainless steel.

[0024] Since it is made of stainless steel, the service life of the cover connected to the water pipe can be increased and rust can be reduced.

[0025] In summary, the present invention has the following beneficial effects:

[0026] By installing filter cotton on the outside of the filter element assembly, using the filter mesh for the first filtration and the filter cotton for the second filtration, the double filtration effect can greatly improve the filtration effect of the filter and meet the current water quality filtration requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the utility model;

[0028] Figure 2 This is a cross-sectional view of the valve body and cover of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the hollow skeleton of the utility model.

[0030] Figure numerals: 1. valve body; 11. ring; 12. sealing ring; 2. cover body; 21. water inlet; 22. water outlet; 3. drain pipe; 31. drain valve; 4. hollow skeleton; 41. through groove; 42. annular protrusion; 43. abutment ring; 5. filter screen; 6. filter cotton. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1 and Figure 2 As shown, a filter comprises a valve body 1 and a cover body 2, the valve body 1 and the cover body 2 are threadedly connected, that is, the valve body 1 is provided with an external thread and the cover body 2 is provided with an internal thread, so that the two can be quickly assembled or disassembled, and at the same time, two sealing rings 12 are provided at the connection of the valve body 1, and the two sealing rings 12 are respectively located on both sides of the external thread. After the valve body 1 and the cover body 2 are tightened to each other, the sealing effect of the two can be well improved. The valve body 1 is made of plastic and the valve body 1 is transparent, so that the interior of the valve body 1 can be observed, and the filter cotton 6 and the filter element assembly can be replaced and cleaned in time. A drain pipe 3 connected thereto is provided on the valve body 1, and the drain pipe 3 is threadedly connected to the valve body 1. The drain pipe 3 is made of brass, and a drain valve 31 is provided on the drain pipe 3 to quickly control the discharge of sewage; a water inlet 21 and a water outlet 22 connected to the interior of the valve body 1 are provided on the cover body 2, and the cover body 2, the water inlet 21 and the water outlet 22 are an integrated structure and are all made of stainless steel to improve their service life.

[0033] Further, such as Figure 2 and Figure 3 As shown, the valve body 1 and the cover body 2 are jointly installed with a filter element assembly, which includes a hollow skeleton 4 and a filter screen 5 arranged on the outside of the hollow skeleton 4. The filter screen 5 is made of stainless steel. The two ends of the hollow skeleton 4 are respectively connected to the water inlet 21 and the sewage pipe 3, and the inner wall of the hollow skeleton 4 is provided with several through grooves 41. The filter element assembly is wrapped with an annular filter cotton 6. The filter cotton 6 is made of PP material. One end of the filter cotton 6 is in contact with the inner wall of the valve body 1, and the other end of the filter cotton 6 is in contact with the inner wall of the cover body 2. There is a gap between the filter cotton 6 and the inner wall of the valve body 1. Therefore, the filter cotton 6 is sleeved on the outside of the filter element assembly, and the filter screen 5 is used for the first filtration and the filter cotton 6 is used for the second filtration. The double filtration effect can greatly improve the filtration effect of the filter and meet the current water quality filtration requirements.

[0034] Further, such as Figure 2 and Figure 3As shown, the valve body 1 is integrally formed with a ring 11 around the sewage pipe 3, and one end of the hollow skeleton 4 is integrally formed with an annular protrusion 42 that extends into the ring 11 and fits with its inner wall. The other end of the hollow skeleton 4 is integrally formed with an abutment ring 43 for abutting the edge of the water inlet 21, so that the center lines of the hollow skeleton 4, the annular protrusion 42 and the sewage pipe 3 coincide with each other, which is convenient for the rapid entry of water flow, and can also play a good positioning and abutment role, which is convenient for assembly. At the same time, combined with the abutment ring 43, the annular protrusion 42 and the sewage pipe are realized. 3 and the connection between the abutment ring 43 and the water inlet 21 are in a relatively sealed state, ensuring that water can only enter from the water inlet 21 and flow out from the water outlet 22 after passing through the hollow skeleton 4, the filter screen 5 and the filter cotton 6, thereby leaving more impurity particles in the hollow skeleton 4, so that they can be discharged through the sewage pipe 3 for treatment. At the same time, an annular groove is provided on the outer side of the hollow skeleton 4, and the filter screen 5 is surrounded in the annular groove and the thickness of the filter screen 5 is not greater than the groove depth of the annular groove, so that the filter screen 5 can be positioned and installed to improve assembly efficiency and assembly quality.

[0035] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A filter, characterized in that: The invention comprises a valve body (1), a cover body (2) and a filter element assembly located in the valve body (1); the cover body (2) is provided with a water inlet (21) and a water outlet (22) connected to the interior of the valve body (1); the valve body (1) is provided with a sewage pipe (3) connected thereto; the filter element assembly comprises a hollow skeleton (4) and a filter screen (5) arranged outside the hollow skeleton (4); the two ends of the hollow skeleton (4) are respectively connected to the water inlet (21) and the sewage pipe (3); and the inner wall of the hollow skeleton (4) is provided with a plurality of through grooves (41); and the filter element assembly is wrapped with an annular filter cotton (6).

2. The filter according to claim 1, characterized in that: One end of the filter cotton (6) is in contact with the inner wall of the valve body (1), and the other end of the filter cotton (6) is in contact with the inner wall of the cover body (2).

3. The filter according to claim 1, characterized in that: The filter cotton (6) is made of PP material.

4. The filter according to claim 1, characterized in that: There is a gap between the filter cotton (6) and the inner wall of the valve body (1).

5. The filter according to claim 1, characterized in that: The valve body (1) is integrally formed with a ring (11) around the sewage pipe (3), one end of the hollow skeleton (4) is integrally formed with an annular protrusion (42) that extends into the ring (11) and fits with the inner wall thereof, and the other end of the hollow skeleton (4) is integrally formed with an abutment ring (43) for abutting the edge of the water inlet (21).

6. The filter according to claim 1, characterized in that: The outer side surface of the hollow skeleton (4) is provided with an annular groove, the filter screen (5) surrounds the annular groove, and the thickness of the filter screen (5) is not greater than the groove depth of the annular groove. The filter screen (5) is made of stainless steel.

7. The filter according to claim 1, characterized in that: The valve body (1) is made of plastic, and the valve body (1) is transparent.

8. The filter according to claim 1, characterized in that: The valve body (1) is threadedly connected to the cover body (2), and two sealing rings (12) are provided at the connection of the valve body (1).

9. The filter according to claim 1, characterized in that: The sewage pipe (3) is made of brass, a sewage valve (31) is provided on the sewage pipe (3), and the sewage pipe (3) is threadedly connected to the valve body (1).

10. The filter according to claim 1, characterized in that: The cover body (2), the water inlet (21) and the water outlet (22) are an integrated structure and are all made of stainless steel.

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