Switching device and pre-filter thereof

Abstract

The switching device comprises a switching piece main body and a valve body, the switching piece main body comprises a left pipe fitting, a right pipe fitting, an upper pipe fitting and a lower pipe fitting, the left pipe fitting, the right pipe fitting, the upper pipe fitting and the lower pipe fitting are integrally formed, and the left pipe fitting, the right pipe fitting and the upper pipe fitting are communicated to form a drain outlet; the valve body is provided with a thick pipe part for closing the drain outlet and a thin pipe part for opening the drain outlet, and the valve body is arranged in the left pipe fitting and the right pipe fitting and can movably close the drain outlet through the thick pipe part or open the drain outlet through the thin pipe part. In the switching process, the sealing effect cannot be reduced due to impurities, and switching is faster and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a switching device and its pre-filter. Background Technology

[0002] Currently, there are two structures for pre-filter drainage: one uses a ball valve, which opens the drain hole by rotating the valve; the other uses a drain shaft, which opens the drain hole through its up-and-down movement and its interaction with the filter bottle. However, ball valves are more expensive, and fine particles can easily cause them to jam during drainage, affecting the sealing effect. Drain shafts, on the other hand, can cause O-rings to detach during upward or downward movement, leading to leaks. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned technical problems by providing a switching device and its pre-filter. This invention will not cause a decrease in sealing effect due to impurities during the switching process, and the switching is faster and more convenient.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a switching device, including a switching component body and a valve body. The switching component body includes left and right pipes and upper and lower pipes, which are integrally formed and connected to form a drain port. The valve body is provided with a thick pipe section for closing the drain port and a thin pipe section for opening the drain port. The valve body is located inside the left and right pipes and can move to close the drain port with the thick pipe section or open the drain port with the thin pipe section. Through the above technical solution, the drain port can be opened or closed by moving the valve body left or right, thereby realizing the switching between the pre-filter filtration state and the drain state. The switching is faster, more convenient, and effectively reduces costs, and the sealing effect will not be reduced due to impurities.

[0005] Preferably, the thicker pipe section is provided with a sealing element, which is a sealing tube fitted over the outside of the thicker pipe section. The sealing element prevents water from flowing out of the drain outlet when the pipe is moved to the thicker pipe section.

[0006] Preferably, both the thicker and thinner sections are equipped with connecting parts on their outer sides, and buttons are connected to the outside of these connecting parts. The buttons allow users to more easily and effortlessly move the valve body left and right.

[0007] Preferably, the button has an inner tube and an outer tube for securing the upper and lower fittings. The inner tube and the connecting part are tolerantly fitted, and the inner and outer tubes are integrally formed. The inner tube simplifies the structural design of the button and the connecting part, effectively reducing manufacturing costs. The outer tube design allows the button to move into position and switch between filtration and sewage discharge modes when one side of the outer tube touches the upper or lower fitting.

[0008] The pre-filter includes a head unit, a filter bottle connected to the head unit, and a switching device located below the filter bottle. The filter bottle contains a filter assembly.

[0009] Preferably, the filter assembly also includes a rotating mechanism located outside the filter assembly. The rotating mechanism includes a hand-driven base connected to the switching device and a water-driven bracket connected to the hand-driven base. The hand-driven base includes a rotatable frame and a protruding connecting part at the center of the frame. An impeller is located above the water-driven bracket, and a first groove is located at the bottom of the water-driven bracket. The protruding connecting part is inserted into the first groove to connect the hand-driven base and the water-driven bracket, and the hand-driven base and the water-driven bracket are rotatably engaged. When the water flow is small or the water flow velocity is low, the frame is manually rotated. The frame rotates, and the connection between the protruding connecting part and the first groove engages during rotation, thereby driving the water-driven bracket to rotate. After the water-driven bracket rotates, the force of the water flow impacting the impeller is sufficient to drive the water-driven bracket to rotate, thereby improving the filtration or scraping efficiency.

[0010] Preferably, the frame is equipped with a locking plate, and the water drive bracket is equipped with a locking block. The hand drive base and the water drive bracket are rotatably locked together by the locking plate and the locking block. When the frame is rotated, the locking plate and the locking block are locked together, the locking plate drives the locking block to rotate, and the rotation of the locking block drives the water drive bracket to rotate.

[0011] Preferably, the hand-driven base also includes a seat body outside the frame. The frame body has a downwardly protruding first hook. The seat body includes a seat ring, a seat base below the seat ring, and a seat tube below the seat base. The seat base and seat ring are connected by a support block. A hollow portion is provided between the seat base and the seat ring. The first hook passes through the hollow portion to lock the frame body and seat ring in place. By fixing the seat body and the frame, rotating the seat body will drive the frame body to rotate, thereby activating the water drive rotation when the water flow is small or the water flow velocity is low.

[0012] Preferably, the frame is equipped with a support frame, which intersects at the center of the frame to form a cross. A protruding connecting part is located at the intersection of the cross. The support block has a second groove, and the support frame is engaged in the second groove. The support frame forms an inverted concave shape at the intersection of the cross, and a ring seat is located below the end of the inverted concave shape. A third groove is located on the bottom of the ring seat, and the ring seat is located in the third groove and communicates with the seat tube. The engagement of the support block and the support frame ensures that the seat and the frame are securely engaged. The ring seat and the inverted concave shape formed by the intersection of the cross allow the scraped impurities to flow smoothly into the seat tube and be discharged.

[0013] Preferably, the filter assembly includes a filter screen frame and a filter screen disposed on the outside of the filter screen frame. The filter screen is disposed on the inside of the water drive support, and the water drive support is provided with a brush for washing the filter screen.

[0014] The beneficial effects of this utility model are:

[0015] 1. The sealing effect will not decrease due to impurities during the switching process of this utility model, and the switching is faster and more convenient;

[0016] 2. With the hand-driven structure, the pre-filter can rotate slightly when the water flow is small or the water flow rate is low, thereby improving the filtration or scraping efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the switching device in the off state.

[0018] Figure 2 yes Figure 1 A cross-sectional view along the AA direction.

[0019] Figure 3 This is a schematic diagram of the connection state of the switching device.

[0020] Figure 4 yes Figure 3 A cross-sectional view along the BB direction.

[0021] Figure 5 This is a schematic diagram of the valve body.

[0022] Figure 6 This is a schematic diagram of the button structure.

[0023] Figure 7 This is a schematic diagram of the pre-filter's filtration state.

[0024] Figure 8 yes Figure 7 A sectional view along the CC direction.

[0025] Figure 9 This is a schematic diagram of the rotating mechanism and the filter assembly.

[0026] Figure 10 This is a schematic diagram of the water drive support structure.

[0027] Figure 11 This is a schematic diagram of the hand-operated base.

[0028] In the diagram: 1. Switch body, 11. Left and right pipe fittings, 12. Upper and lower pipe fittings, 13. Drain outlet, 2. Valve body, 21. Coarse pipe section, 22. Fine pipe section, 23. Connecting part, 3. Sealing part, 4. Button, 41. Inner pipe, 42. Outer pipe, 5. Machine head, 6. Filter bottle, 7. Filter assembly, 71. Filter screen frame, 72. Filter screen, 8. Hand-driven base, 81. Frame, 811. Protruding connecting part, 812. First hook part, 813. Support frame, 814. Ring seat, 815. Clamping plate, 82. Seat body, 821. Seat ring, 822. Seat bottom, 8221. Third groove, 823. Seat tube, 824. Support block, 8241. Second groove, 825. Hollowed-out part, 9. Water drive bracket, 91. First groove, 92. Clamping block, 93. Brush, 10. Impeller. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-11 As shown, the present invention provides a switching device, including a switching component body (1) and a valve body (2). The switching component body (1) includes left and right pipes (11) and upper and lower pipes (12). The left and right pipes (11) and upper and lower pipes (12) are integrally formed and are connected to form a drain outlet (13). The valve body (2) is provided with a thick pipe section (21) for closing the drain outlet (13) and a thin pipe section (22) for opening the drain outlet (13). The valve body (2) is located inside the left and right pipes (11) and can be moved to close the drain outlet (13) with the thick pipe section (21) or open the drain outlet (13) with the thin pipe section (22).

[0031] A sealing element (3) is provided on the thick tube section (21), and the sealing element (3) is a sealing tube, which is sleeved on the outside of the thick tube section (21).

[0032] Both the thick tube section (21) and the thin tube section (22) are provided with connecting parts (23) on the outside, and a button (4) is connected to the outside of the connecting parts (23).

[0033] The button (4) has an inner tube (41) and an outer tube (42) for securing the upper and lower tubes (12). The inner tube (41) and the connecting part (23) are tolerance-fitted, and the inner tube (41) and the outer tube (42) are integrally formed.

[0034] The pre-filter includes a head (5), a filter bottle (6) connected to the head (5), and a switching device located below the filter bottle (6). The filter bottle (6) contains a filter assembly (7).

[0035] It also includes a rotating mechanism located outside the filter assembly (7). The rotating mechanism includes a hand-driven base (8) connected to the switching device and a water-driven bracket (9) connected to the hand-driven base (8). The hand-driven base (8) includes a rotatable frame (81) and a protruding connecting part (811) located at the center of the frame (81). An impeller (10) is provided above the water-driven bracket (9), and a first groove (91) is provided at the bottom of the water-driven bracket (9). The protruding connecting part (811) is inserted into the first groove (91) to connect the hand-driven base (8) and the water-driven bracket (9). The hand-driven base (8) and the water-driven bracket (9) are rotatably engaged.

[0036] The frame (81) is provided with a card plate (815), and the water drive bracket (9) is provided with a card block (92). The hand drive base (8) and the water drive bracket (9) are rotatably locked together by the card plate (815) and the card block (92).

[0037] The hand-driven base (8) also includes a seat (82) located outside the frame (81). The frame (81) has a first hook (812) that protrudes downward. The seat (82) includes a seat ring (821), a seat base (822) located below the seat ring (821), and a seat tube (823) located below the seat base (822). The seat base (822) and the seat ring (821) are connected by a support block (824). A hollow part (825) is provided between the seat base (822) and the seat ring (821). The first hook (812) passes through the hollow part (825) to lock the frame (81) and the seat ring (821).

[0038] The frame (81) is provided with a support frame (813), the support frames (813) intersect at the center of the frame (81) to form a cross, the protruding connecting part (811) is provided at the intersection of the cross, the support block (824) is provided with a second groove (8241), the support frame (813) is locked in the second groove (8241); the support frame (813) forms an inverted concave shape at the intersection of the cross, the lower end of the inverted concave shape is provided with a ring seat (814), the bottom of the seat (822) is provided with a third groove (8221), the ring seat (814) is provided in the third groove (8221) and communicates with the seat tube (823).

[0039] The filter assembly (7) includes a filter screen frame (71) and a filter screen (72) disposed outside the filter screen frame (71). The filter screen (72) is disposed inside the water drive bracket (9). The water drive bracket (9) is provided with a brush (93) for washing the filter screen (72).

[0040] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0041] It should be noted that when a component is referred to as "fixed on" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

Claims

1. A switching device, characterized in that: The device includes a switching component body (1) and a valve body (2). The switching component body (1) includes left and right pipes (11) and upper and lower pipes (12). The left and right pipes (11) and upper and lower pipes (12) are integrally formed and connected to form a drain outlet (13). The valve body (2) is provided with a thick pipe section (21) for closing the drain outlet (13) and a thin pipe section (22) for opening the drain outlet (13). The valve body (2) is located inside the left and right pipes (11) and can be moved to close the drain outlet (13) with the thick pipe section (21) or open the drain outlet (13) with the thin pipe section (22).

2. The switching device according to claim 1, characterized in that: A sealing element (3) is provided on the thick tube section (21), and the sealing element (3) is a sealing tube, which is sleeved on the outside of the thick tube section (21).

3. The switching device according to claim 1, characterized in that: Both the thick tube section (21) and the thin tube section (22) are provided with connecting parts (23) on the outside, and a button (4) is connected to the outside of the connecting parts (23).

4. The switching device according to claim 3, characterized in that: The button (4) has an inner tube (41) and an outer tube (42) for securing the upper and lower tubes (12). The inner tube (41) and the connecting part (23) are tolerance-fitted, and the inner tube (41) and the outer tube (42) are integrally formed.

5. A pre-filter, characterized in that: It includes a head (5), a filter bottle (6) connected to the head (5), and a switching device as described in any one of claims 1 to 4 located below the filter bottle (6), wherein the filter bottle (6) contains a filter assembly (7).

6. The pre-filter according to claim 5, characterized in that: It also includes a rotating mechanism located outside the filter assembly (7). The rotating mechanism includes a hand-driven base (8) connected to the switching device and a water-driven bracket (9) connected to the hand-driven base (8). The hand-driven base (8) includes a rotatable frame (81) and a protruding connecting part (811) located at the center of the frame (81). An impeller (10) is provided above the water-driven bracket (9), and a first groove (91) is provided at the bottom of the water-driven bracket (9). The protruding connecting part (811) is inserted into the first groove (91) to connect the hand-driven base (8) and the water-driven bracket (9). The hand-driven base (8) and the water-driven bracket (9) are rotatably engaged.

7. The pre-filter according to claim 5, characterized in that: The frame (81) is provided with a card plate (815), and the water drive bracket (9) is provided with a card block (92). The hand drive base (8) and the water drive bracket (9) are rotatably locked together by the card plate (815) and the card block (92).

8. The pre-filter according to claim 5, characterized in that: The hand-driven base (8) also includes a seat (82) located outside the frame (81). The frame (81) has a first hook (812) that protrudes downward. The seat (82) includes a seat ring (821), a seat base (822) located below the seat ring (821), and a seat tube (823) located below the seat base (822). The seat base (822) and the seat ring (821) are connected by a support block (824). A hollow part (825) is provided between the seat base (822) and the seat ring (821). The first hook (812) passes through the hollow part (825) to lock the frame (81) and the seat ring (821).

9. The pre-filter according to claim 8, characterized in that: The frame (81) is provided with a support frame (813), the support frames (813) intersect at the center of the frame (81) to form a cross, the protruding connecting part (811) is provided at the intersection of the cross, the support block (824) is provided with a second groove (8241), the support frame (813) is locked in the second groove (8241); the support frame (813) forms an inverted concave shape at the intersection of the cross, the lower end of the inverted concave shape is provided with a ring seat (814), the bottom of the seat (822) is provided with a third groove (8221), the ring seat (814) is provided in the third groove (8221) and communicates with the seat tube (823).

10. The pre-filter according to claim 5, characterized in that: The filter assembly (7) includes a filter screen frame (71) and a filter screen (72) disposed outside the filter screen frame (71). The filter screen (72) is disposed inside the water drive bracket (9). The water drive bracket (9) is provided with a brush (93) for washing the filter screen (72).

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