Pre-filter with switching head

Abstract

The utility model discloses a pre-filter with a switching head, which comprises a positioning seat body provided with a water inlet, a water outlet and a pressure relief opening, and the water inlet and the water outlet are symmetrically arranged; the switching part comprises a switching seat and a switching twisting block, two first water through holes and two second water through holes are formed in the surface of the switching seat in a surrounding mode, the two first water through holes and the two second water through holes are symmetrically formed, a communicating pipe is arranged between the two second water through holes, and the switching twisting block is arranged at the top of the switching seat. The switching twisting block penetrates through the positioning seat body and extends to the top of the positioning seat body; and a connecting seat. According to the utility model, when the filter element needs to be adjusted and replaced, only the switching twisting block needs to be slightly screwed for adjustment, water feeding can be stopped, the filter element can be replaced, the switching twisting block can be continuously screwed to adjust water to be directly discharged, temporary water is not filtered through the filter element, the adjustment is simple and convenient, and the overall disassembly and assembly are not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a pre-filter with a switching head. Background Art

[0002] The pre-filter is a filtering device before the main water pipe for household or equipment use. Installing a pre-filter can intercept pollutants such as silt, rust, etc. contained in the water supply of the pipe network.

[0003] The traditional pre-filter is directly installed in the pipeline. The product is simple. During long-term use, the filtering effect of the filter element will become worse and worse, and the filter element needs to be replaced or cleaned. If the filter element needs to be replaced, the main water supply valve can only be cut off. The operation is troublesome, time-consuming and labor-intensive. If the filter needs to be repaired, continuous water supply cannot be guaranteed, which will cause certain troubles in daily use and affect temporary water use. Utility Model Content

[0004] The utility model provides a pre-filter with a switching head, which can achieve that when the filter element needs to be adjusted and replaced, the water intake can be stopped and the filter element can be replaced after the switching knob is gently turned. The water can also be adjusted to be directly discharged after continuing to turn it, and temporary water is not filtered through the filter element. The adjustment is simple and convenient, and the overall disassembly and installation are not required.

[0005] In order to solve the above technical problems, the utility model provides a pre-filter with a switching head, comprising:

[0006] The positioning seat body is provided with a water inlet, a water outlet and a pressure relief port, and the water inlet and the water outlet are symmetrically arranged;

[0007] The switching member comprises a switching seat and a switching twist block, wherein the switching seat surface is surrounded by a first water hole and a second water hole, the first water hole and the second water hole are both provided in two and symmetrically arranged, a connecting pipe is provided between the two second water holes, and a switching twist block is provided on the top of the switching seat, the switching twist block penetrates the positioning seat body and extends to the top of the positioning seat body;

[0008] The connecting seat comprises an insertion head and a connecting head. The insertion head is provided with an installation groove and is clamped inside the positioning seat body. One end of the bottom of the switching seat is plugged into the insertion head. A filter element is matched and installed at the bottom of the connecting head, and a barrel body is provided on the outside of the filter element.

[0009] As a preferred embodiment of the above technical solution, the water inlet, the water outlet and the pressure relief port are all arranged in the movable groove, and a positioning piece is arranged inside the movable groove.

[0010] As a preferred embodiment of the above technical solution, the inner wall of the positioning seat is evenly provided with locking grooves, the outer wall of the insertion head of the connecting seat is evenly provided with protruding plates, the protruding plates match the locking grooves, and the outer wall of the insertion head is sleeved with a limiting ring.

[0011] As a preferred embodiment of the above technical solution, the angle between the first water hole and the second water hole is set to be a right angle, and both are set on the same horizontal line as the water inlet and the water outlet. The switching seat and the switching twist block are integrated and the interior is hollow.

[0012] As a preferred embodiment of the above technical solution, sealing rings are evenly arranged inside the positioning seat body, and the sealing rings are arranged between the first water through hole, the second water through hole and the positioning sheet.

[0013] As a preferred embodiment of the above technical solution, a casing is sleeved on the outer side of the positioning seat body, the casing is provided with a plurality of holes and grooves and respectively match the water inlet, the water outlet and the pressure relief port, a rotating plate is provided on the top of the casing, a rotating shaft is connected to the bottom of the rotating plate, and the rotating shaft passes through the casing and is clamped with the switching torsion block.

[0014] As a preferred embodiment of the above technical solution, a mounting frame is arranged outside the casing, and a water cavity and a water pipe are penetrated inside the mounting frame. The water pipe penetrates the casing and is respectively connected to the water inlet and the water outlet.

[0015] The utility model provides a pre-filter with a switching head, which comprises a positioning seat body, a switching piece, a connecting seat body and a filter element. Under normal working conditions, water is introduced into the water body from the water inlet into the switching piece and then flows downward through the connecting seat body into the filter element for filtering treatment. When the filter element needs to be replaced, the switching twist block at the top is rotated to drive the switching seat to rotate, so that the first water hole running through the switching seat is away from the position of the water inlet and the water outlet, so that water cannot enter and be discharged. At this time, the barrel body can be rotated to remove it and the filter element as a whole to replace and clean the filter element, and then it can be screwed on again to position it with the connecting seat body. After installation, screw back the switching knob to resume work, and you can also turn the switching knob more when needed to connect the second water hole to the water inlet. The water entering the water inlet can directly enter the other second water hole through the connecting pipe and then be discharged from the water outlet. The water use can be temporarily adjusted when the filter element is blocked or damaged. When the filter element needs to be adjusted and replaced, you only need to gently turn the switching knob to stop the water intake and replace the filter element. You can also continue to turn it to adjust the water to be discharged directly, and temporary water use is not filtered through the filter element. The adjustment is simple and convenient, and does not require overall disassembly and installation.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the switching member and the positioning seat body of the utility model;

[0019] Figure 3 This is an exploded view of the positioning seat body, the switching member and the connecting seat of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the switching element of the utility model.

[0021] In the figure: 1 positioning seat body, 11 water inlet, 12 water outlet, 13 pressure relief port, 14 positioning plate, 15 positioning slot, 2 switching member, 21 switching seat, 22 switching twist block, 23 first water through hole, 24 second water through hole, 3 connecting seat, 31 protruding plate, 4 sealing ring, 5 casing, 51 hole slot, 52 rotating plate, 6 filter element, 7 barrel body, 8 mounting frame. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The present invention provides a pre-filter with a switch head, comprising:

[0024] The positioning seat body 1 is provided with a water inlet 11, a water outlet 12 and a pressure relief port 13, and the water inlet 11 and the water outlet 12 are symmetrically arranged;

[0025] The switching member 2 includes a switching seat 21 and a switching twist block 22. The surface of the switching seat 21 is surrounded by a first water hole 23 and a second water hole 24. The first water hole 23 and the second water hole 24 are both provided in two and symmetrically arranged. A connecting pipe is provided between the two second water holes 24. The top of the switching seat 21 is provided with a switching twist block 22. The switching twist block 22 penetrates the positioning seat body 1 and extends to the top of the positioning seat body 1.

[0026] The connecting seat 3 includes an insertion head and a connecting head. The insertion head is provided with a mounting groove and is clamped inside the positioning seat body 1. One end of the bottom of the switching seat 21 is plugged with the insertion head. A filter element 6 is matched and installed at the bottom of the connecting head, and a barrel body 7 is provided on the outside of the filter element 6.

[0027] The present embodiment provides a pre-filter with a switching head, which comprises a positioning seat body 1, a switching member 2, a connecting seat body 3 and a filter element 6. Under normal working conditions, water is introduced into the switching member 2 from the water inlet 11 and then flows downward through the connecting seat body 3 to enter the filter element 6 for filtering treatment. When the filter element needs to be replaced, the switching twist block 22 at the top is rotated to drive the switching seat 21 to rotate, and the first water hole 23 passing through the switching seat 21 is moved away from the position of the water inlet 11 and the water outlet 12, so that water cannot enter and be discharged. At this time, the barrel body 7 can be rotated to remove it and the filter element 6 as a whole to replace and clean the filter element, and then screwed on again to position it with the connecting seat body 3. After installation, screw back the switching knob 22 to resume operation. You can also turn the switching knob 22 more when needed to connect the second water hole 24 to the water inlet 11. The water entering the water inlet 11 can directly enter the other second water hole 24 through the connecting pipe and then be discharged from the water outlet 12. The water use can be temporarily adjusted when the filter element 6 is blocked or damaged. When the filter element 6 needs to be adjusted, replaced or cleaned, you only need to gently turn the switching knob 22 to stop the water intake and replace the filter element 6. You can also continue to turn it to adjust the water to be discharged directly, and the temporary water is not filtered by the filter element 6. The adjustment is simple and convenient, and does not require overall disassembly and installation.

[0028] In a further implementable embodiment of the present embodiment, the water inlet 11, the water outlet 12 and the pressure relief port 13 are all arranged in the movable groove, and a positioning piece 14 is arranged inside the movable groove.

[0029] The arrangement of the pressure relief port 13 in this embodiment allows the pressure relief valve to be installed and then the internal part can be adjusted to release the water pressure, without the need to close the main water gate for operation.

[0030] In a further feasible embodiment of this embodiment, the inner wall of the positioning seat body 1 is evenly provided with a locking groove 15, the outer wall of the insertion head of the connecting seat 3 is evenly provided with a protruding plate 31, the protruding plate 31 matches the locking groove 15, and the outer wall of the insertion head is sleeved with a limiting ring.

[0031] The protruding plate 31 and the positioning groove 15 of the outer wall of the insertion head in this embodiment are installed and positioned to ensure that the entire connecting seat 3 and the positioning seat body 1 are in a stable position.

[0032] In a further feasible embodiment of the present invention, the angle between the first water hole 23 and the second water hole 24 is set to be a right angle, and both are arranged on the same horizontal line as the water inlet 11 and the water outlet 12. The switching seat 21 and the switching twist block 22 are integrated and hollow inside.

[0033] In this embodiment, the first water hole 23 works normally, and the water entering from the water inlet 11 is passed into the bottom filter element 6 for filtration and then discharged through the other water hole 23 connected to the water outlet 12 .

[0034] In a further feasible embodiment of the present invention, sealing rings 4 are evenly arranged inside the positioning seat body 1 , and the sealing rings 4 are arranged between the first water through hole 23 , the second water through hole 24 and the positioning sheet 14 .

[0035] The sealing ring 4 in this embodiment can wrap and seal the first water hole 23 and the second water hole 24 to prevent water from flowing out.

[0036] In a further feasible embodiment of the present embodiment, a casing 5 is sleeved on the outer side of the positioning seat body 1, the casing 5 is provided with a plurality of holes and grooves 51 which respectively match the water inlet 11, the water outlet 12 and the pressure relief port 13, a rotating plate 52 is provided on the top of the casing 5, a rotating shaft is connected to the bottom of the rotating plate 52, and the rotating shaft passes through the casing 5 and is engaged with the switching torsion block 22.

[0037] The rotating shaft at the bottom of the rotating plate 52 in this embodiment can be connected to the switching twist block 22. A positioning slot is provided on the top of the switching twist block 22 and is matched with the rotating shaft. Rotating the rotating shaft plate 52 at the top can drive the rotating twist block 22 and the switching seat 21 at the bottom to rotate.

[0038] In a further embodiment of the present invention, a mounting frame 8 is provided outside the casing 5 , and a water cavity and a water pipe are provided inside the mounting frame 8 . The water pipe passes through the casing 5 and is connected to the water inlet 11 and the water outlet 12 respectively.

[0039] The mounting frame 8 in this embodiment positions the housing 5 as a whole, and the positioning and installation are performed from the outside of the mounting frame 8 .

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A pre-filter with a switching head, characterized in that: include: The positioning seat body (1) is provided with a water inlet (11), a water outlet (12) and a pressure relief port (13), wherein the water inlet (11) and the water outlet (12) are symmetrically arranged; The switching member (2) comprises a switching seat (21) and a switching twist block (22); the switching seat (21) is provided with a first water hole (23) and a second water hole (24) around its surface; the first water hole (23) and the second water hole (24) are both provided in two numbers and are symmetrically arranged; a connecting pipe is provided between the two second water holes (24); the switching twist block (22) is provided on the top of the switching seat (21); the switching twist block (22) penetrates the positioning seat body (1) and extends to the top of the positioning seat body (1); The connecting seat (3) comprises an insertion head and a connecting head, wherein the insertion head is provided with a mounting groove and is clamped inside the positioning seat body (1), one end of the bottom of the switching seat (21) is plugged into the insertion head, a filter element (6) is matched and installed at the bottom of the connecting head, and a barrel body (7) is provided outside the filter element (6).

2. A pre-filter with a switching head according to claim 1, characterized in that: The water inlet (11), the water outlet (12) and the pressure relief port (13) are all arranged in the movable groove, and a positioning piece (14) is arranged inside the movable groove.

3. A pre-filter with a switch head according to claim 1, characterized in that: The inner wall of the positioning seat body (1) is evenly provided with positioning grooves (15), the outer wall of the insertion head of the connecting seat (3) is evenly provided with protruding plates (31), the protruding plates (31) match the positioning grooves (15), and the outer wall of the insertion head is sleeved with a limiting ring.

4. A pre-filter with a switch head according to claim 1, characterized in that: The angle between the first water hole (23) and the second water hole (24) is set to be a right angle, and both are arranged on the same horizontal line as the water inlet (11) and the water outlet (12). The switching seat (21) and the switching twist block (22) are integrated and have a hollow interior.

5. The pre-filter with a switch head according to claim 2, characterized in that: Sealing rings (4) are evenly arranged inside the positioning seat body (1), and the sealing rings (4) are arranged between the first water through hole (23), the second water through hole (24) and the positioning sheet (14).

6. A pre-filter with a switch head according to claim 1, characterized in that: The outer side of the positioning seat body (1) is sleeved with a housing (5), the housing (5) is provided with a plurality of holes (51) and respectively match the water inlet (11), the water outlet (12) and the pressure relief port (13), the top of the housing (5) is provided with a rotating plate (52), the bottom of the rotating plate (52) is connected with a rotating shaft, and the rotating shaft passes through the housing (5) and is engaged with the switching twist block (22).

7. A pre-filter with a switch head according to claim 6, characterized in that: A mounting frame (8) is arranged outside the casing (5), and a water passage cavity and a water passage pipe are arranged inside the mounting frame (8). The water passage pipe passes through the casing (5) and is respectively connected to the water inlet (11) and the water outlet (12).

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