Filtering type metal hose

Abstract

The utility model discloses a filtering type metal hose which comprises a hose body, a left flange and a right flange, the left flange and the right flange are arranged at two ends of the hose body, one side of the left flange is connected with a water outlet pipe through a left connecting disc, one side of the right flange is connected with a water inlet pipe through a right connecting disc, and a filter cartridge is inserted into one end, close to the water inlet pipe, in the hose body. An external water source flows into the filter cartridge from the water inlet pipe to be filtered, then flows into the water filter pipe, is filtered by the holes in the surface of the water filter pipe and the filter screens in the holes and then flows into the interlayer cavity between the water filter pipe and the hose body, and the water source subjected to double filtration is discharged outwards through the drainage hole and the drainage pipe. A water source is filtered by adopting a dual water filtering structure of the filter cartridge and the water filtering pipe, an external water source flows outwards from the side wall of the filter cartridge and the side wall of the water filtering pipe, the problem that the filter screen is damaged due to the fact that water flow directly flushes the filter screen can be avoided, the water quality is better after the water source is doubly filtered, and meanwhile, the water source can be circularly filtered through the arranged return pipe, so that the filtered water quality is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal hoses, in particular to a filtering metal hose. Background Art

[0002] Metal hoses are essential components in modern industry. In complex piping systems, spatial constraints often create installation difficulties: pre-formed pipes won't fit; pipes bent, straightened, or improvised will inevitably experience localized cold correction. Depending on the pipe diameter and site conditions, the amount of cold correction can range from a few millimeters to tens of millimeters, sometimes even hundreds of millimeters. Because they can bend freely and produce minimal internal stress within the rated bend radius, they greatly facilitate installation and ensure the safe operation of piping systems.

[0003] Prior art publication number CN218153024U is a filtering metal hose, comprising a hose body and a mounting assembly, wherein a flange is fixedly mounted on the right side of the hose body, and a connecting block is movably mounted on the side of the flange away from the hose body; the mounting assembly comprises a first threaded groove, which is arranged in the middle of the flange away from the hose body, a threaded pipe having one end extending into the interior of the first threaded groove is fixedly mounted in the middle of the side of the connecting block close to the flange, and a second threaded groove is provided in the middle of the side of the connecting block away from the flange.

[0004] In the above device, a filter is set at one end of the hose to filter the water source. This filtering method will cause the water flow to directly impact the filter. Long-term use or when the water flow impact is strong will damage the filter. At the same time, under the impact of the water flow, some impurities with particle sizes slightly larger than the filter holes will also pass through the filter holes, making it difficult to effectively filter the water source. Utility Model Content

[0005] The purpose of the present utility model is to provide a filtering metal hose to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A filtering metal hose comprises a hose body and a left flange and a right flange arranged at both ends of the hose body, one side of the left flange is connected to a water outlet pipe via a left connecting plate, and one side of the right flange is connected to a water inlet pipe via a right connecting plate, a filter cartridge is inserted into the hose body at one end close to the water inlet pipe, an external thread is provided on the outer surface of the filter cartridge body corresponding to one end of the right flange, and an internal thread is provided on the right flange, and the internal and external threads cooperate to threadably connect and fix the filter cartridge to the right flange.

[0008] As a further solution of the present invention: a water filter pipe is also provided inside the hose body, a drainage hole is opened on one side of the bottom of the hose body, and a drainage pipe is fixed in the drainage hole, the filter cartridge is located in the water filter pipe, and the water outlet pipe is connected to the water filter pipe.

[0009] As a further solution of the present invention: both ends of the water filter pipe are integrally formed with ribs, the diameters of the two ribs are adapted to the inner diameter of the hose body, the two ribs cooperate to block the two ends of the inner cavity of the hose body, and form an interlayer cavity between the middle section of the inner cavity of the hose body and the outer wall of the water filter pipe, and the interlayer cavity is used to store water.

[0010] As a further solution of the present invention: plugs are provided on the outside of both ends of the water filter pipe, and the two plugs are both annular structures, and their shapes are adapted to the inner cavity of the hose body, and the outer surfaces of the two plugs are provided with external threads, and one side of the two ends of the hose body corresponding to the two plugs is provided with internal threads, and the internal and external threads match each other and are used to threadably connect and fix the two plugs to the two ends of the hose body respectively, and the two plugs match each other to limit the water filter pipe in the hose body.

[0011] As a further solution of the present invention: a return pipe is provided above the hose body, and both ends of the return pipe are connected to the water outlet pipe and the water inlet pipe respectively through three-way valves.

[0012] As a further solution of the present invention: a fifth sealing ring is provided on one side of both ends of the water filter pipe close to the two ribs, and the two fifth sealing rings cooperate to seal the gap between the two ribs and the inner wall of the hose body to prevent water leakage.

[0013] As a further solution of the present invention: a second sealing ring and a third sealing ring are respectively provided between the left flange and the hose body, and between the right flange and the hose body. The second sealing ring and the third sealing ring are respectively used to seal the gaps between the left flange, the right flange and the hose body to prevent water leakage.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In the present invention, external water flows into the filter cartridge from the water inlet pipe, is filtered, and then flows into the filter pipe. It is then filtered through the holes on the surface of the filter pipe and the filter screen inside the holes, and then flows into the interlayer cavity between the filter pipe and the hose body. The water source after double filtration is discharged outward from the drain hole and the drain pipe. Furthermore, by controlling the outlet pipe to close the three-way valve, the external water source flowing into the outlet pipe is no longer discharged directly from the outlet pipe, but flows into the return pipe, is sent back to the water inlet pipe through the return pipe for further filtration, and finally is discharged from the drain pipe. The water in the hose body is allowed to flow through the return pipe, which can prevent the accumulation of water in the pipe from causing excessive water pressure and damaging the filter pipe and filter cartridge.

[0016] 2. In the present invention, a dual water filtering structure of a filter cartridge and a water filter pipe is adopted to filter the water source. The external water source flows outward from the side wall of the filter cartridge and the side wall of the water filter pipe, which can avoid the problem of water flowing directly into the filter screen and causing damage to the filter screen. The water quality is better after double filtration. At the same time, the filtered water source can be circulated through the set return pipe to further improve the quality of the filtered water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the further improved utility model.

[0021] Figure 4 It is a front view schematic diagram of a further improved utility model.

[0022] Figure 5 This is a cross-sectional view of the internal structure of the hose body after further improvement of the present invention.

[0023] Notes on figure numbers: 1-hose body, 2-water inlet pipe, 3-water outlet pipe, 4-left flange, 5-right flange, 6-left connecting plate, 7-first sealing ring, 8-second sealing ring, 9-filter cartridge, 10-third sealing ring, 11-fourth sealing ring, 12-right connecting plate, 13-three-way valve, 14-return pipe, 15-drain pipe, 16-drain hole, 17-water filter pipe, 18-rib, 19-fifth sealing ring, 20-plug. DETAILED DESCRIPTION

[0024] The following embodiments will be described in detail with reference to the accompanying drawings. Similar or identical parts are denoted by the same reference numerals in the drawings and descriptions. In actual applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in the present invention are intended only to illustrate the present invention and are not intended to limit its scope. Any obvious modifications or variations to the present invention do not depart from the spirit and scope of the present invention.

[0025] Example 1

[0026] See also Figures 1-2 In the embodiment of the utility model, a filtering metal hose comprises a hose body 1 and a left flange 4 and a right flange 5 arranged at both ends of the hose body 1. One side of the left flange 4 is connected to the water outlet pipe 3 through the left connecting plate 6, and one side of the right flange 5 is connected to the water inlet pipe 2 through the right connecting plate 12. The left flange 4 and the left connecting plate 6, as well as the right flange 5 and the right connecting plate 12, are fixed by bolts. The outer surface of the end of the water inlet pipe 2 corresponding to the right connecting plate 12 and the outer surface of the end of the water outlet pipe 3 corresponding to the left connecting plate 6 are both provided with external threads, and the right connecting plate 12 and the left connecting plate 6 are both provided with internal threads. The internal and external threads cooperate with each other to threadably connect the water inlet pipe 2 and the water outlet pipe 6 to the right connecting plate 12 and the left connecting plate 6, respectively.

[0027] The water inlet pipe 2, the water outlet pipe 3 and the hose body 1 are internally connected, and a fourth sealing ring 11 and a first sealing ring 7 are respectively provided at the connection points. In this embodiment, the first sealing ring 7 is located between the left connecting plate 6 and the left flange 4, and is used to seal the gap between the water outlet pipe 3 and the left connecting plate 6 and the left flange 4. The fourth sealing ring 12 is located between the right connecting plate 12 and the right flange 5, and is used to seal the gap between the water inlet pipe 2 and the right connecting plate 12 and the right flange 5.

[0028] A filter cartridge 9 is inserted into the end of the hose body 1 near the water inlet pipe 2. The filter cartridge 9 is a cylindrical structure with holes evenly opened on its surface, and a filter screen is fixed in the holes for filtering water. External water flows into the filter cartridge 9 from the water inlet pipe 2, is filtered, and then flows into the hose body 1 and flows out from the water outlet pipe 3. The outer surface of the filter cartridge 9 corresponding to one end of the right flange 5 is provided with an external thread, and the right flange 5 is provided with an internal thread. The internal and external threads cooperate with each other to threadably connect and fix the filter cartridge 9 to the right flange 5. In this embodiment, after the filter cartridge 9 is fixed to the right flange 5, the filter cartridge 9 is inserted into the hose body 1, and the right flange 5 is sleeved on one end of the hose body 1, so that the filter cartridge 9 and the hose body 1 can be relatively fixed. After the filter cartridge 9 has been used for a period of time, the above operation can be performed in reverse, and the filter cartridge 9 can be removed for cleaning and replacement.

[0029] A second sealing ring 8 and a third sealing ring 10 are respectively provided between the left flange 4 and the hose body 1 and between the right flange 5 and the hose body 1. The second sealing ring 8 and the third sealing ring 10 are respectively used to seal the gaps between the left flange 4, the right flange 5 and the hose body 1 to prevent water leakage.

[0030] Example 2

[0031] See also Figures 3-5 On the basis of Example 1, a water filter pipe 17 is further provided inside the hose body 1. A drainage hole 16 is provided on one side of the bottom of the hose body 1, and a drainage pipe 15 is fixed in the drainage hole 16. The water filter pipe 17 is a tubular structure with a plurality of holes evenly provided on its surface, and a filter screen is fixed in the holes. In this embodiment, the filter cartridge 9 is located in the water filter pipe 17, and the outlet pipe 3 is connected to the water filter pipe 17. External water flows into the filter cartridge 9 from the water inlet pipe 2, is filtered, and then flows into the water filter pipe 17. After being filtered through the holes on the surface of the water filter pipe 17 and the filter screen in the holes, it flows into the interlayer cavity between the water filter pipe 17 and the hose body 1. The water after double filtration is discharged outward from the drainage hole 16 and the drainage pipe 15.

[0032] Both ends of the water filter tube 17 are integrally formed with ribs 18. The diameters of the two ribs 18 are adapted to the inner diameter of the hose body 1. The two ribs 18 cooperate to block both ends of the inner cavity of the hose body 1 and form a sandwich cavity between the middle section of the inner cavity of the hose body 1 and the outer wall of the water filter tube 17. This sandwich cavity is used to store water, and the water source after secondary filtration is stored in this cavity;

[0033] A fifth sealing ring 19 is provided on one side of each end of the water filter pipe 17 near the two ribs 18. The two fifth sealing rings 19 cooperate with each other to seal the gap between the two ribs 18 and the inner wall of the hose body 1 to prevent water leakage.

[0034] The outer sides of both ends of the water filter pipe 17 are provided with plugs 20. The two plugs 20 are both annular structures, and their outer shapes are adapted to the inner cavity of the hose body 1. The outer surfaces of the two plugs 20 are provided with external threads. One side of the two ends of the hose body 1 corresponding to the two plugs 20 is provided with internal threads, and the internal and external threads match each other for threading the two plugs 20 to be fixed to the two ends of the hose body 1. In this embodiment, the water filter pipe 17 and the hose body 1 are movably connected and can be disassembled. During installation, the water filter pipe 17 is first inserted into the hose body 1. After insertion, the two fifth sealing rings 19 are respectively sleeved on the two ends of the water filter pipe 17 to seal the gap between the rib 18 and the inner wall of the hose body 1. Then, the two plugs 20 are respectively tightened to the two ends of the hose body 1. At this time, the water filter pipe 17 is located between the two plugs 20, and the water filter pipe 17 is relatively fixed in the hose body 1.

[0035] After the water filter pipe 17 is fixed, the filter cartridge 9 is inserted into the water filter pipe 17, and the water inlet pipe 2 and the water outlet pipe 3 are respectively connected to the two ends of the hose body 1. At this time, since the rib 18 is provided between the water filter pipe 17 and the hose body 1, the water filter pipe 17 is connected to the water outlet pipe 3, while the water outlet pipe 3 is not connected to the hose body 1. The water source in the interlayer cavity inside the hose body 1 cannot be discharged from the water outlet pipe 3, while the water in the water filter pipe 17 can be discharged directly from the water outlet pipe 3;

[0036] A return pipe 14 is provided above the hose body 1. The two ends of the return pipe 14 are connected to the outlet pipe 3 and the inlet pipe 2 respectively through a three-way valve 13. In this embodiment, the water source in the outlet pipe 3 can be sent back to the inlet pipe 2 through the return pipe 14 for filtering again. This can be achieved by controlling the three-way valve 13 on the side of the return pipe 14 located on the outlet pipe 3. Specifically, when in use, there are the following situations:

[0037] The first type has low requirements for water quality. In this case, the three-way valve 13 is controlled to close the return pipe 14. External water flows from the water inlet pipe 2 into the filter cartridge 9, is filtered, and then flows into the filter pipe 17. Most of the water in the filter pipe 17 then flows into the outlet pipe 3, and the water that has only been filtered once is discharged from the outlet pipe 3. In addition, a small amount of water in the filter pipe 17 flows out through the holes on the surface of the pipe body into the interlayer cavity inside the hose body 1. The water in the interlayer cavity is filtered twice by the filter cartridge 9 and the filter pipe 17. This part of the water flows out through the drain pipe 15.

[0038] The second type requires higher water quality. In this case, the three-way valve 13 is controlled to close the outlet pipe 3. The external water flowing into the outlet pipe 3 is no longer discharged directly from the outlet pipe 3, but flows into the return pipe 14. It is then sent back to the inlet pipe 2 through the return pipe 14 for further filtration. After the external water is double-filtered by the filter cartridge 9 and the filter pipe 17, it is discharged from the drain pipe 15. The water in the hose body 1 is allowed to flow through the return pipe 14, preventing the accumulation of water in the pipe from causing excessive water pressure and damaging the filter pipe 17 and the filter cartridge 9.

[0039] The third type has higher requirements for water quality. At this time, the three-way valve 13 is controlled to simultaneously close the outlet pipe 3 and the return pipe 14. The external water source no longer flows back to the water inlet pipe 2 through the return pipe 14 for re-filtration, but only continuously accumulates water through the inner cavity of the hose body 1, and then filters these water sources through the water filter pipe 17 and filter cartridge 9 arranged in the inner cavity. The filtered water source is discharged from the drain pipe 15. Compared with the second filtering method, this filtering method requires the water filter pipe 17 and filter cartridge 9 to be able to withstand a larger water pressure. Under the same water quality requirements, the second method is preferably selected.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A filter metal hose, comprising a hose body (1) and a left flange (4) and a right flange (5) provided at both ends of the hose body (1), characterized in that: One side of the left flange (4) is connected to the water outlet pipe (3) via the left connecting plate (6), and one side of the right flange (5) is connected to the water inlet pipe (2) via the right connecting plate (12). A filter cartridge (9) is inserted into one end of the hose body (1) close to the water inlet pipe (2). The outer surface of the filter cartridge (9) corresponding to one end of the right flange (5) is provided with an external thread, and the right flange (5) is provided with an internal thread. The internal and external threads match each other and are used to threadably connect and fix the filter cartridge (9) to the right flange (5).

2. The filter metal hose according to claim 1, characterized in that: A water filter pipe (17) is further provided inside the hose body (1), a drainage hole (16) is provided on one side of the bottom of the hose body (1), and a drainage pipe (15) is fixed in the drainage hole (16), the filter cartridge (9) is located in the water filter pipe (17), and the water outlet pipe (3) is connected to the water filter pipe (17).

3. The filter metal hose according to claim 2, characterized in that: Both ends of the water filter pipe (17) are integrally formed with retaining edges (18), the diameters of the two retaining edges (18) are adapted to the inner diameter of the hose body (1), and the two retaining edges (18) cooperate to seal the two ends of the inner cavity of the hose body (1), and form an interlayer cavity between the middle section of the inner cavity of the hose body (1) and the outer wall of the water filter pipe (17), and the interlayer cavity is used for storing water.

4. The filter metal hose according to claim 3, characterized in that: The outer sides of both ends of the water filter pipe (17) are provided with plugs (20), and the two plugs (20) are both annular structures, and their outer shapes are adapted to the inner cavity of the hose body (1), and the outer surfaces of the two plugs (20) are provided with external threads. The sides of the two ends of the hose body (1) corresponding to the two plugs (20) are provided with internal threads, and the internal and external threads match each other, and are used to thread the two plugs (20) to be fixed to the two ends of the hose body (1), respectively. The two plugs (20) match each other, and are used to limit the water filter pipe (17) in the hose body (1).

5. The filter type metal hose according to claim 4, characterized in that: A return pipe (14) is provided above the hose body (1), and both ends of the return pipe (14) are connected to the water outlet pipe (3) and the water inlet pipe (2) respectively through a three-way valve (13).

6. The filter type metal hose according to claim 5, characterized in that: A fifth sealing ring (19) is provided on one side of both ends of the water filter pipe (17) close to the two ribs (18). The two fifth sealing rings (19) cooperate with each other to seal the gap between the two ribs (18) and the inner wall of the hose body (1) to prevent water leakage.

7. The filter type metal hose according to claim 1 or 6, characterized in that: A second sealing ring (8) and a third sealing ring (10) are respectively provided between the left flange (4) and the hose body (1), and between the right flange (5) and the hose body (1). The second sealing ring (8) and the third sealing ring (10) are respectively used to seal the gaps between the left flange (4), the right flange (5) and the hose body (1) to prevent water leakage.

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