High pressure filter

Abstract

The utility model discloses a high-pressure filter, which comprises a shell with an opening at one end, a cover cap is arranged at the opening of the shell, a liquid inlet pipe is connected to the bottom of the shell, and a liquid outlet pipe is connected to the cover cap; a filter cartridge structure is arranged inside the shell; the filter cartridge structure comprises a base, a mesh cylinder arranged on the base, and an annular extension portion formed at the opening of the mesh cylinder; an annular cavity is formed between the outer wall of the mesh cylinder and the inner wall of the shell; a through hole connected to the annular cavity is arranged on the base; a connecting column is arranged at the inner bottom of the cover cap, a slot matched with the connecting column is formed on the upper surface of the annular extension portion, a scraper is arranged on the inner wall of the shell, the end of the scraper is in contact with the outer wall of the mesh cylinder, and a discharge pipe connected to the annular cavity is arranged outside the shell; the problem of the filter in the prior art that some impurities will adhere to the outer wall of the filter screen during actual operation, thereby affecting the flushing efficiency, is solved.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a high-pressure filter. Background Art

[0002] There are often many filters installed in the car, among which a high-pressure filter is installed in the engine cooling system to filter the coolant to remove impurities. For example, the Chinese patent with patent number CN200820081590.5 provides a high-pressure slag-discharging filter, which is composed of a valve body, a valve cover at both ends of the valve body, a filter installed in the valve body, and a water outlet and a water outlet installed on the valve cover. One end of the filter opening is open, and the peripheral edge is integrated with the filter retaining ring, and then fully contacts with the inner wall of the valve body; the other end of the filter opening is closed, and the peripheral edge is integrated with the filter support with a concave surface, and the concave surface of the filter support forms a series of pores of water flow channels with the inner wall of the valve body; a bypass water nozzle and a water nozzle cover are provided on the middle wall of the valve body. For example, the filter in the above-mentioned prior art mainly flushes out the impurities accumulated inside by opening the bypass water nozzle cover, but in the actual operation process, some impurities will adhere to the outer wall of the filter, affecting the flushing efficiency. Utility Model Content

[0003] The utility model aims to provide a high-pressure filter, which solves the problem in the prior art that, in the actual operation process, some impurities adhere to the outer wall of the filter screen, thus affecting the flushing efficiency.

[0004] In order to achieve the above object, the utility model provides a high-pressure filter, which includes a shell with an opening at one end, a cap is provided at the opening of the shell, a liquid inlet pipe is connected to the bottom of the shell, and a liquid outlet pipe is connected to the cap;

[0005] A filter cartridge structure is arranged inside the shell; the filter cartridge structure includes a base, a mesh cylinder arranged on the base, and an annular extension portion formed at the opening of the mesh cylinder; an annular cavity is formed between the outer wall of the mesh cylinder and the inner wall of the shell; a through hole connected to the annular cavity is arranged on the base; a connecting column is arranged at the inner bottom of the cap, and a slot matched with the connecting column is formed on the upper surface of the annular extension portion; the cap can drive the filter cartridge structure to rotate in the shell, a scraper is arranged on the inner wall of the shell, and the end of the scraper is in contact with the outer wall of the mesh cylinder, and a discharge pipe connected to the annular cavity is arranged outside the shell.

[0006] Preferably, a first sealing ring is provided at the contact point between the annular extension portion and the inner wall of the housing.

[0007] Preferably, a second sealing ring is provided at the contact point between the base and the inner wall of the shell.

[0008] Preferably, a rubber strip is provided at the end of the scraper.

[0009] Preferably, a connecting pipe is rotatably sleeved on the outside of the liquid outlet pipe.

[0010] Preferably, a sealing cover is provided on the discharge pipe.

[0011] Beneficial effect: The utility model provides a high-pressure filter, which comprises a shell with an opening at one end, a cap is arranged at the opening of the shell, the bottom of the shell is connected with a liquid inlet pipe, and the cap is connected with a liquid outlet pipe; a filter cartridge structure is arranged inside the shell; the filter cartridge structure comprises a base, a mesh cylinder arranged on the base, and an annular extension formed at the opening of the mesh cylinder; an annular cavity is formed between the outer wall of the mesh cylinder and the inner wall of the shell; a through hole connected to the annular cavity is arranged on the base; a connecting column is arranged at the inner bottom of the cap, and a slot matching the connecting column is formed on the upper surface of the annular extension; so that the cap can drive the filter cartridge structure to be inserted into the shell The shell body rotates inside, and a scraper is provided on the inner wall of the shell, and the end of the scraper contacts the outer wall of the mesh cylinder, and a discharge pipe connected with the annular cavity is provided on the outside of the shell; in the initial state, the discharge pipe is in a closed state, and cooling water enters into the annular cavity through the liquid inlet pipe and the through hole on the base, enters into the interior through the mesh cylinder filter port, and is discharged through the liquid outlet pipe, and the filtered impurities remain in the annular cavity. When cleaning is required, the discharge pipe is opened, and the incoming water can flush the internal impurities out of the discharge pipe. At the same time, the cap can be rotated, so that the cap drives the internal filter cylinder structure to rotate, so that the scraper can scrape off the impurities adhered to the surface of the mesh cylinder, which greatly improves the cleaning effect of the mesh cylinder and ensures that the mesh cylinder can operate normally afterwards.

[0012] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural diagram of the high pressure filter provided by the utility model;

[0015] Figure 2 This is a first cross-sectional view of the high-pressure filter provided by the utility model;

[0016] Figure 3This is a second cross-sectional view of the high-pressure filter provided by the utility model;

[0017] Figure 4 It is a disassembled cross-sectional view of the high-pressure filter provided by the utility model.

[0018] Description of Reference Numerals

[0019] 1-shell; 2-net tube; 3-liquid inlet pipe; 4-cap; 5-connecting column; 6-liquid outlet pipe; 7-connecting pipe; 8-scraper; 9-discharge pipe; 10-blocking cover; 11-base; 12-annular extension; 13-through hole. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0021] like Figure 1-4 As shown: The utility model provides a high-pressure filter, which includes a shell 1 with an opening at one end, a cap 4 is arranged at the opening of the shell 1, a liquid inlet pipe 3 is connected to the bottom of the shell 1, and a liquid outlet pipe 6 is connected to the cap 4; a filter cartridge structure is arranged inside the shell 1; the filter cartridge structure includes a base 11, a net cylinder 2 arranged on the base 11, and an annular extension 12 formed at the opening of the net cylinder 2; so that an annular cavity is formed between the outer wall of the net cylinder 2 and the inner wall of the shell 1; a through hole 13 connected to the annular cavity is arranged on the base 11; a connecting column 5 is arranged at the inner bottom of the cap 4, and a slot matched with the connecting column 5 is formed on the upper surface of the annular extension 12; so that the cap 4 can drive the filter cartridge structure to rotate in the shell 1, a scraper 8 is arranged on the inner wall of the shell 1, and the end of the scraper 8 is in contact with the outer wall of the net cylinder 2, and a discharge pipe 9 connected to the annular cavity is arranged outside the shell 1. In the initial state, the discharge pipe is in a closed state, and cooling water enters into the annular cavity through the liquid inlet pipe and the through holes on the base, enters into the interior through the filter port of the mesh cylinder, and is discharged through the liquid outlet pipe. The filtered impurities remain in the annular cavity. When cleaning is required, the discharge pipe is opened. At this time, the incoming water can flush the internal impurities out of the discharge pipe. At the same time, the cap can be rotated so that the cap drives the internal filter cylinder structure to rotate, so that the scraper can scrape off the impurities adhered to the surface of the mesh cylinder, which greatly improves the cleaning effect of the mesh cylinder and ensures that the mesh cylinder can operate normally in the future.

[0022] In a preferred embodiment of the present invention, in order to ensure the sealing of the formed annular cavity, a first sealing ring is provided at the contact point between the annular extension 12 and the inner wall of the housing 1; a second sealing ring is provided at the contact point between the base 11 and the inner wall of the housing 1. A groove structure is formed at the bottom of the base, and a through hole is provided in the groove structure, so that a space is left between the base and the housing to avoid clogging the liquid inlet pipe.

[0023] In a preferred embodiment of the present utility model, in order to prevent the scraper from damaging the filter mesh structure on the surface of the mesh cylinder, a rubber strip is provided at the end of the scraper 8.

[0024] In a preferred embodiment of the utility model, the outer part of the liquid outlet pipe 6 is rotatably sleeved with a connecting pipe 7. The liquid inlet pipe is connected to a water pipe, and the connecting pipe is connected to a water pipe, so that the cap can rotate relative to the shell and the connecting pipe to avoid excessive twisting of the water pipe thereon.

[0025] In a preferred embodiment of the present invention, in order to facilitate opening and closing of the discharge pipe, a blocking cover 10 is provided on the discharge pipe 9. The blocking cover here can be a type that is well known and commonly used in the art.

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0028] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A high pressure filter, characterized in that: The high-pressure filter comprises a shell (1) having an opening at one end, a cover cap (4) being arranged at the opening of the shell (1), a liquid inlet pipe (3) being connected to the bottom of the shell (1), and a liquid outlet pipe (6) being connected to the cover cap (4); A filter cartridge structure is arranged inside the shell (1); the filter cartridge structure comprises a base (11), a mesh cartridge (2) arranged on the base (11), and an annular extension portion (12) formed at the opening of the mesh cartridge (2); an annular cavity is formed between the outer wall of the mesh cartridge (2) and the inner wall of the shell (1); a through hole (13) communicating with the annular cavity is arranged on the base (11); a connecting column (5) is arranged at the inner bottom of the cover cap (4), and a slot matching the connecting column (5) is formed on the upper surface of the annular extension portion (12); the cover cap (4) can drive the filter cartridge structure to rotate inside the shell (1); a scraper (8) is arranged on the inner wall of the shell (1), and the end of the scraper (8) contacts the outer wall of the mesh cartridge (2); and a discharge pipe (9) communicating with the annular cavity is arranged outside the shell (1).

2. The high pressure filter according to claim 1, characterized in that: A first sealing ring is provided at the contact point between the annular extension portion (12) and the inner wall of the housing (1).

3. The high pressure filter according to claim 1, characterized in that: A second sealing ring is provided at the contact point between the base (11) and the inner wall of the shell (1).

4. The high pressure filter according to claim 1, characterized in that: The end of the scraper (8) is provided with a rubber strip.

5. The high pressure filter according to claim 1, characterized in that: The outside of the liquid outlet pipe (6) is rotatably sleeved with a connecting pipe (7).

6. The high pressure filter according to claim 1, characterized in that: The discharge pipe (9) is provided with a sealing cover (10).

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