Double check valve mechanism of large flow water purifier

Abstract

The utility model discloses a double check water stop mechanism of high flow water purifier, including a pair of filter core and water route board subassembly, filter core detachable connection is in water route board subassembly, and the filter core front end is equipped with the water passageway corresponding with the water passageway no.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically to a double check valve mechanism for a high-flow water purifier. Background Technology

[0002] As people's living standards improve, their requirements for drinking water quality are also increasing. High-flow water purifiers are in growing demand in the market because they can quickly provide a large amount of clean drinking water.

[0003] In existing high-flow water purifiers, the water-stopping mechanism is a key component to ensure the normal operation and safe use of the equipment. Traditional water-stopping mechanisms mostly adopt a single check valve design, which has certain shortcomings and cannot achieve bidirectional water stoppage.

[0004] Furthermore, as high-flow water purifiers develop towards higher throughput and more stable operation, traditional single-backflow check mechanisms are no longer sufficient. Therefore, developing a more reliable and efficient check mechanism has become a pressing issue in the high-flow water purifier field. Against this backdrop, a patent for a double-backflow check mechanism for high-flow water purifiers has emerged, aiming to improve the check effect, enhance the overall performance and stability of the water purifier, and bring convenience to users through innovative design. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a double backflow prevention mechanism for a large flow water purifier, which effectively achieves bidirectional water stoppage.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] The device includes a pair of filter elements and a water circuit board assembly. The filter elements are detachably connected to the water circuit board assembly. The front end of the filter element has a water passage corresponding to a water inlet. A support frame is installed in the water passage. The water circuit board assembly has a second water inlet for connecting the first water inlet and the water passage. A filter element check valve assembly is installed in the water passage. The filter element check valve assembly is inserted into the support frame. A water circuit board check valve assembly is installed in the second water inlet. The water circuit board check valve assembly and the filter element check valve assembly constitute a double check valve mechanism.

[0008] Furthermore, the support frame includes a support frame body, and a connecting cylinder is provided at the center of the lower surface of the support frame body.

[0009] Furthermore, the filter element check valve assembly includes a filter element check valve and a filter element check valve spring. The end of the filter element check valve stem is inserted into the connecting cylinder, and the filter element check valve spring is sleeved on the connecting cylinder and the filter element check valve stem.

[0010] Furthermore, the connecting cylinder is provided with space for the reciprocating movement of the filter element check valve stem.

[0011] Furthermore, it includes a filter element check valve sealing ring, which is installed at the interface between the filter element check valve and the water passage.

[0012] Furthermore, the water circuit board check valve assembly includes a water circuit board check valve and a water circuit board check valve spring. The water circuit board check valve spring is sleeved between the water inlet two and the water circuit board check valve. The water circuit board check valve is installed inside the water inlet two and can move up and down.

[0013] Furthermore, the water circuit board check valve includes a water circuit board check valve body, a connecting ring connected to the water circuit board check valve body, a water circuit board check valve mounting seat provided at the end of the water circuit board check valve body, and a water circuit board check valve sealing ring installed on the mounting groove of the water circuit board check valve mounting seat.

[0014] Furthermore, the filter element check valve and the water circuit board check valve interact with each other. After one of the check valves reaches a fixed position, it stops moving, thereby causing the other check valve to move, forming a bidirectional passage. The water circuit board assembly consists of a water circuit board and a water circuit board underside.

[0015] Furthermore, the water channel plate assembly is provided with an assist mechanism for easily removing the filter element. The assist mechanism includes an assist cap and an assist cap pressure plate. The assist cap includes an assist cap body, and a cylindrical body is provided on the upper surface of the assist cap body. A connecting post is provided on the water channel plate. Positioning posts are provided at both ends of the connecting post. The connecting post is inserted into the cylindrical body. The assist cap pressure plate is connected to the cylindrical body and the two positioning posts. An assist cap spring is sleeved on the connecting post.

[0016] Furthermore, the booster cap pressure plate includes a booster cap pressure plate body, and the booster cap pressure plate body is symmetrically provided with skirts at both the front and rear ends. The booster cap pressure plate body is provided with positioning holes that match the size of the cylinder body, and each of the two skirts is provided with a second mounting hole that matches the size of the first mounting hole on the positioning post. The cylinder body passes through the positioning holes, and the two skirts are respectively fixedly connected to their corresponding positioning posts.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1) This utility model provides a filter element check valve assembly in the water passage, which is inserted into the support frame. A water passage plate check valve assembly is provided in the second water outlet. When the filter element is removed, the water passage plate check valve forms a seal under the action of the water passage plate spring to prevent water from flowing out of the water passage plate assembly. Similarly, when the filter element is removed, the filter element check valve forms a seal under the action of the filter element check spring to prevent water from flowing out of the filter element, thus forming a double backflow prevention mechanism.

[0019] 2) When the filter element is inserted into the water circuit board assembly, the water circuit board check valve begins to move until it can no longer move, thereby opening the filter element check valve and realizing bidirectional water flow;

[0020] 3) This utility model solves the problem that the filter element is difficult to remove under long-term water pressure because it is sealed by a sealing ring by providing an assist mechanism on the water circuit board assembly. The assist mechanism increases the reverse force, making it easy to remove the filter element. Attached Figure Description

[0021] Figure 1 This is an explosion diagram of the water-stopping mechanism of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall water-stopping mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the support frame structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the check valve structure of the water circuit board of this utility model;

[0025] Figure 5 This is a schematic diagram of the water circuit board assembly structure of this utility model. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the water circuit board assembly structure of this utility model. Figure 2 ;

[0027] Figure 7 This is a schematic diagram of the pressure plate structure of the power cap of this utility model;

[0028] Figure 8 This is a schematic diagram showing the cooperation between the power-assisted cap and the power-assisted cap spring of this utility model;

[0029] Figure 9 This is a schematic diagram of the filter element structure of this utility model.

[0030] In the diagram: 1. Filter element; 2. Water inlet one; 3. Water passage; 4. Support frame; 401. Support frame body; 402. Connecting cylinder; 5. Water inlet two; 8. Filter element check valve; 9. Filter element check valve spring; 10. Space; 11. Filter element check valve sealing ring; 12. Water circuit board check valve; 1201. Water circuit board check valve body; 1202. Connecting ring; 1203. Water circuit board check valve mounting seat; 12031. Mounting groove; 13. Water circuit board check valve spring; 14. On the water circuit board; 15. Under the water circuit board; 16. Auxiliary cap; 1601. Cylinder; 17. Auxiliary cap pressure plate; 1701. Auxiliary cap pressure plate body; 17011. Positioning hole; 1702. Skirt; 17021. Mounting hole two; 18. Positioning post; 1801. Mounting hole one; 19. Auxiliary cap spring; 20. Water circuit board check valve sealing ring; 21. Connecting post. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described herein.

[0032] Please refer to Figure 1 A high-flow water purifier with a dual check valve mechanism includes a pair of filter elements 1 and a water circuit board assembly. The filter elements 1 are detachably connected to the water circuit board assembly. The front end of the filter element 1 is provided with a water passage 3 corresponding to the first water inlet 2. A support frame 4 is installed in the water passage 3. The water circuit board assembly is provided with a second water inlet 5 for connecting the first water inlet 2 and the water passage 3. A filter element check valve assembly is provided in the water passage 3 and is inserted into the support frame 4. A water circuit board check valve assembly is provided in the second water inlet 5. When the filter element 1 is installed on the water circuit board assembly, the water circuit board check valve assembly and the filter element check valve assembly constitute a dual check valve mechanism, effectively achieving bidirectional water stop.

[0033] Please refer to Figure 9 In this embodiment, each filter element 1 has two water inlets 2, one is an inlet and the other is an outlet, with a drain outlet provided between the inlet and the outlet.

[0034] Please refer to Figure 3 The support frame 4 includes a support frame body 401, and a connecting cylinder 402 is provided at the center of the lower surface of the support frame body 401.

[0035] Please refer to Figure 3 The filter element check valve assembly includes a filter element check valve 8 and a filter element check valve spring 9. The end of the valve stem of the filter element check valve 8 is inserted into the connecting cylinder 402, and the filter element check valve spring 9 is sleeved on the connecting cylinder 402 and the valve stem of the filter element check valve 8.

[0036] Please refer to Figure 2 The connecting cylinder 402 has a space 10 for the reciprocating movement of the valve stem of the filter element check valve 8.

[0037] Furthermore, the filter element check valve assembly also includes a filter element check valve sealing ring 11, which is installed at the mating point between the filter element check valve 8 and the water passage 3 to ensure good sealing of the water purifier.

[0038] Please refer to Figure 3 The water circuit board check valve assembly includes a water circuit board check valve 12 and a water circuit board check valve spring 13. The water circuit board check valve spring 13 is sleeved between the water inlet 5 and the water circuit board check valve 12. The water circuit board check valve 12 is installed in the water inlet 5 and can move up and down.

[0039] Please refer to Figure 4 The water circuit board check valve 12 includes a water circuit board check valve body 1201, a connecting ring 1202 connected to the water circuit board check valve body 1201, a water circuit board check valve mounting seat 1203 provided at the end of the water circuit board check valve body 1201, and a water circuit board check valve sealing ring 20 installed on the mounting groove 12031 of the water circuit board check valve mounting seat 1203.

[0040] The filter element check valve 8 and the water circuit board check valve 12 interact with each other. After one of the check valves reaches a fixed position, it stops moving, thereby causing the other check valve to move, forming a two-way passage.

[0041] For easier replacement of filter element 1, please refer to... Figure 5 and Figure 8 The water circuit board assembly is equipped with an assist mechanism for easily removing the filter element. The assist mechanism includes an assist cap 16 and an assist cap pressure plate 17. The assist cap 16 includes an assist cap body, and a cylindrical body 1601 is provided on the upper surface of the assist cap body. A connecting post 21 is provided on the water circuit board 14. Positioning posts 18 are provided at both ends of the connecting post 21. The connecting post 21 is inserted into the cylindrical body 1601. The assist cap pressure plate 17 is connected to the cylindrical body 1601 and the two positioning posts 18. An assist cap spring 19 is sleeved on the connecting post 21. The cylindrical body 1601 can move up and down under the action of the assist cap spring 19.

[0042] Please refer to Figure 6 and 7 The power-assisted cap pressure plate 17 includes a power-assisted cap pressure plate body 1701. The power-assisted cap pressure plate body 1701 has symmetrical skirts 1702 at both ends. The power-assisted cap pressure plate body 1701 has a positioning hole 17011 that matches the size of the cylinder 1601. The two skirts 1702 each have a mounting hole 17021 that matches the size of the mounting hole 1801 on the positioning post 18. The cylinder 1601 passes through the positioning hole 17011, and the two skirts 1702 are fixedly connected to their corresponding positioning posts 18.

[0043] In this embodiment, the water channel board assembly consists of a water channel upper plate 14 and a water channel lower plate 15.

[0044] When filter element 1 is removed, the water circuit board check valve 12 forms a seal under the action of the water circuit board check valve spring 13, preventing water from flowing out of the water circuit board assembly; similarly, when filter element 1 is removed, the filter element check valve 8 forms a seal under the action of the filter element check valve spring 9, preventing water from flowing out of the filter element 1, thus forming a double check valve water stop mechanism.

[0045] When filter element 1 is inserted into the water circuit board assembly, the water circuit board check valve 12 begins to move until it can no longer move, thereby opening the filter element check valve 8 and realizing bidirectional water flow.

Claims

1. A double backflow prevention mechanism for a high-flow water purifier, comprising a pair of filter elements (1) and a water circuit board assembly, wherein the filter elements (1) are detachably connected to the water circuit board assembly, the front end of the filter elements (1) is provided with a water passage (3) corresponding to a water inlet (2), a support frame (4) is installed in the water passage (3), and the water circuit board assembly is provided with a water inlet (5) for connecting the water inlet (2) and the water passage (3), characterized in that The water passage (3) is provided with a filter element check valve assembly, which is inserted into the support frame (4). The water outlet (5) is provided with a water circuit plate check valve assembly. The water circuit plate check valve assembly and the filter element check valve assembly constitute a double check valve mechanism.

2. The double check valve mechanism for a high-flow water purifier according to claim 1, characterized in that... The support frame (4) includes a support frame body (401), and a connecting cylinder (402) is provided at the center of the lower surface of the support frame body (401).

3. The double check valve mechanism for a high-flow water purifier according to claim 2, characterized in that... The filter element check valve assembly includes a filter element check valve (8) and a filter element check valve spring (9). The end of the valve stem of the filter element check valve (8) is inserted into the connecting cylinder (402), and the filter element check valve spring (9) is sleeved on the connecting cylinder (402) and the valve stem of the filter element check valve (8).

4. The double check valve mechanism for a high-flow water purifier according to claim 3, characterized in that... The connecting cylinder (402) has a space (10) for the reciprocating movement of the valve stem of the filter element check valve (8).

5. The double check valve mechanism for a high-flow water purifier according to claim 3, characterized in that... Includes a filter element check valve sealing ring (11), which is installed at the interface between the filter element check valve (8) and the water passage (3).

6. The double check valve mechanism for a high-flow water purifier according to claim 3, characterized in that... The water circuit board check valve assembly includes a water circuit board check valve (12) and a water circuit board check valve spring (13). The water circuit board check valve spring (13) is sleeved between the water inlet two (5) and the water circuit board check valve (12). The water circuit board check valve (12) is installed in the water inlet two (5) and can move up and down.

7. The double check valve mechanism for a high-flow water purifier according to claim 6, characterized in that... The water circuit board check valve (12) includes a water circuit board check valve body (1201), a connecting ring (1202) is connected to the water circuit board check valve body (1201), a water circuit board check valve mounting seat (1203) is provided at the end of the water circuit board check valve body (1201), and a water circuit board check valve sealing ring (20) is installed on the mounting groove (12031) of the water circuit board check valve mounting seat (1203).

8. The double check valve mechanism for a high-flow water purifier according to claim 1, characterized in that... The filter element check valve (8) and the water circuit board check valve (12) interact with each other. After one of the check valves reaches a fixed position, it stops moving, thereby causing the other check valve to move and forming a bidirectional passage. The water circuit board assembly consists of a water circuit board upper (14) and a water circuit board lower (15).

9. A double check valve mechanism for a high-flow water purifier according to claim 8, characterized in that... The water circuit board assembly is provided with an assist mechanism for easily removing the filter element. The assist mechanism includes an assist cap (16) and an assist cap pressure plate (17). The assist cap (16) includes an assist cap body. The upper surface of the assist cap body is provided with a cylinder (1601). The water circuit board (14) is provided with a connecting post (21). The front and rear ends of the connecting post (21) are provided with positioning posts (18). The connecting post (21) is inserted into the cylinder (1601). The assist cap pressure plate (17) is connected to the cylinder (1601) and the two positioning posts (18). An assist cap spring (19) is sleeved on the connecting post (21).

10. A double check valve mechanism for a high-flow water purifier according to claim 9, characterized in that... The booster cap pressure plate (17) includes a booster cap pressure plate body (1701). The booster cap pressure plate body (1701) has symmetrical skirts (1702) at both ends. The booster cap pressure plate body (1701) has a positioning hole (17011) that matches the size of the cylinder (1601). The two skirts (1702) each have a mounting hole (17021) that matches the size of the mounting hole one (1801) on the positioning post (18). The cylinder (1601) passes through the positioning hole (17011), and the two skirts (1702) are fixedly connected to their corresponding positioning posts (18).

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