Magnet one-way valve and guest room diluter comprising same

Abstract

The utility model discloses a magnet one-way valve and a guest room diluter comprising the same, the magnet one-way valve comprises a valve body which is provided with a liquid inlet and a liquid outlet, the magnet one-way valve further comprises a hollow cylinder body which is used for blocking the liquid inlet of the valve body, and the lower end of the cylinder body is provided with an opening; the cover body is arranged on the opening of the cylinder body in a covering manner; a first mounting ring; a second mounting ring; the clamping ring is provided with an opening, and the clamping ring can be temporarily expanded in the radial direction through external force; the first mounting ring and the second mounting ring are hooped through the clamping ring, so that after the cover body covers the cylinder body and wraps the magnet, the inner contour of the clamping ring is matched with the outer contour formed by attaching the first mounting ring and the second mounting ring; the clamping ring limits the attached position of the first mounting ring and the second mounting ring, so that the first mounting ring and the second mounting ring cannot loosen after being hooped tightly, a gap between the first mounting ring and the second mounting ring is avoided, and liquid is prevented from entering the magnet to corrode the magnet.

Description

Technical Field

[0001] The utility model belongs to the technical field of check valves, and particularly relates to a magnet check valve. Background Art

[0002] A check valve is a valve that only allows fluid (such as liquid or gas) to flow in one direction. Its main function is to prevent the reverse flow of fluid, thus ensuring the normal operation of the system. Check valves are widely used in various hydraulic systems and pneumatic systems, especially in situations where reverse flow may damage the equipment.

[0003] In the prior art, such as the Chinese patent with the publication number CN217683416U, it discloses a liquid inlet and outlet check device, including an upper quick-change body, a cylinder body, and a lower quick-change body. A cover body is vertically arranged between the upper quick-change body and the lower quick-change body. An inlet liquid space is formed between the inner side of the cover body and the lower quick-change body, and a magnetic plugging member is vertically slidably arranged in the inlet liquid space. The upper position of the outer peripheral surface of the cover body is magnetic. The technical advantages of this utility model are: the circular magnet is outside the inlet liquid space, and the cylindrical magnet is internally sealed and wrapped with plastic, which can effectively prevent contact with corrosive liquids; the two magnets attract each other, and a one-way seal is carried out through the third O-ring. When the liquid flows in the reverse direction, the magnet is opened by the generated liquid pressure, and then the liquid can flow out downward;

[0004] The following defects exist in the above prior art solution: its plugging member is divided into a trapezoid body with an upward opening and a cover body with a downward opening. The two are vertically connected, and a cylindrical magnet is arranged inside. The trapezoid body and the cover body wrap the cylindrical magnet through clamping.

[0005] In the above design, the trapezoid body and the cover body are only simply inserted and clamped. During the use of the above check valve, the plugging member moves up and down when opening or closing, so that the plugging member will collide with the inside of the housing when opening or closing. After long-term use, the trapezoid body and the cover body are prone to looseness, and the liquid transmitted in the check valve may enter its interior from the clamping position of the trapezoid body and the cover body, thereby corroding the magnet, affecting its magnetism, and affecting the overall use effect of the check valve. Summary of the Invention

[0006] To solve the above technical problems, the utility model provides the following technical solutions. A magnet check valve includes a valve body having a liquid inlet and a liquid outlet, and further includes:

[0007] A cylinder body, which is hollow and used to block the liquid inlet of the valve body. The lower end of the cylinder body is open;

[0008] A cover body, which covers the opening of the cylinder body and is fixedly connected to the cylinder body;

[0009] A first mounting ring, the outer side of the cylinder body is provided with the first mounting ring;

[0010] A second mounting ring, the outer side of the cover body is provided with the second mounting ring;

[0011] A snap ring, which has an opening, and the snap ring can be temporarily radially expanded by an external force;

[0012] A magnet assembly for driving the cylinder body to block the liquid inlet of the valve body;

[0013] A limiting structure, a limiting structure is arranged at the liquid outlet of the valve body for limiting the stroke of the cylinder body and the cover body;

[0014] Wherein, after the cover body is covered on the cylinder body, the first mounting ring and the second mounting ring are arranged in a fitting manner, the inner contour of the snap ring matches the outer contour after the first mounting ring and the second mounting ring are fitted, and the snap ring is clamped on the first mounting ring and the second mounting ring.

[0015] Furthermore, it further includes:

[0016] Lugs, there are two of them, and both of the two lugs are fixedly connected to the outer surface of the snap ring;

[0017] Wherein, the two lugs are respectively located on both sides of the opening of the snap ring, and through holes are formed through the lugs.

[0018] Furthermore, it further includes:

[0019] Sealing elements;

[0020] Wherein, after the cover body is covered on the cylinder body, the first mounting ring and the second mounting ring are arranged at intervals, the sealing element is sleeved on the cover body and located within the interval, and the upper and lower side surfaces of the sealing element are respectively in contact with the first mounting ring and the second mounting ring.

[0021] Furthermore, chamfers are respectively provided at the ends of the first mounting ring and the second mounting ring that are far away from each other, and the inner ring of the snap ring has an inclined surface that matches the chamfer.

[0022] Furthermore, the magnet assembly includes:

[0023] A first magnet, which is located in the hollow of the cylinder body;

[0024] A second magnet, which is fixedly arranged inside the valve body, and the second magnet is located on the side of the valve body close to the liquid inlet.

[0025] Furthermore, the limiting structure includes:

[0026] Vertical plates, there are several of them, and several of the vertical plates are circumferentially spaced apart in the liquid outlet;

[0027] Among them, one end of the plurality of vertical plates is fixedly connected to the valve body, and a gap is formed between the other ends of the plurality of vertical plates, and the size of the gap is smaller than the size of the cylinder body and the cover body.

[0028] Furthermore, it also includes:

[0029] A guide post, the lower end of the cover body is fixedly provided with a guide post, and the guide post matches the notch;

[0030] Wherein, the guide column is movably arranged in the notch up and down.

[0031] Further, a guest room diluter comprises:

[0032] A body, which has an output pipe, a clean water input pipe and a medicine input pipe;

[0033] The liquid outlet of the valve body is connected to the medicine input pipe of the body, and the liquid inlet of the valve body is connected to a liquid extraction pipe.

[0034] The beneficial effects of the utility model are:

[0035] 1. A clamping ring is provided to tighten the first mounting ring and the second mounting ring, so that after the cover body is placed on the cylinder body to cover the magnet, the inner contour of the clamping ring matches the outer contour formed by the first mounting ring and the second mounting ring, and the clamping ring limits the position of the first mounting ring and the second mounting ring after they are fitted, so that the first mounting ring and the second mounting ring will not loosen after being tightened, avoiding the formation of a gap between the first mounting ring and the second mounting ring, thereby preventing liquid from entering the magnet and corroding the magnet.

[0036] 2. By providing ear plates with through holes on both sides of the opening of the circlip, when the circlip needs to be pried, a circlip pliers can be used, and the two jaws of the circlip pliers are respectively inserted into the through holes of the ear plates of the circlip, and then the handles of the circlip pliers are pressed, so that the two jaws of the circlip pliers can drive the ear plates away from each other, thereby driving the circlip to expand radially, so that the radial expansion of the circlip can be more labor-saving and convenient by using circlip pliers.

[0037] 3. By spacing the first mounting ring and the second mounting ring and arranging a seal in the spacing, the sealing performance between the cover body and the cylinder body is improved, and liquid can be better prevented from entering the interior through the joint between the cylinder body and the cover body.

[0038] 4. By chamfering one end of the first mounting ring away from the second mounting ring, and the inner ring of the snap ring having an inclined surface matching the chamfer, when the snap ring is radially clamped on the first mounting ring and the second mounting ring, the inclined surface will abut against the chamfer, so as to change the direction of the force through the cooperation of the inclined surface and the chamfer, making the first mounting ring have a force towards the second mounting ring, and the second mounting ring have a force towards the first mounting ring, making the cooperation between the first mounting ring and the second mounting ring closer, further preventing liquid from flowing in and the cover body from loosening from the cylinder body.

[0039] 5. By providing a number of vertically arranged plates circumferentially distributed at intervals, when the liquid flushes open the cylinder body, the cylinder body will drive the cover body to move towards the vertically arranged plates. However, since the gap formed by the number of vertically arranged plates is smaller than the sizes of the cylinder body and the cover body, when the cylinder body drives the cover body to move towards the vertically arranged plates, it cannot pass through the gap. Thus, while ensuring that the cylinder body releases the blockage of the liquid inlet, it will not be washed too far away by the fluid and cannot ensure magnetic connection, facilitating the position of the cylinder body to always be in a state where it can be reset. Therefore, after the fluid stops being inhaled, the cylinder body continues to block the liquid inlet through magnetic reset.

[0040] 6. By providing guide posts matching the gap, it plays a guiding effect on the movement trajectories of the cylinder body and the cover body. When the cylinder body is reset, it is convenient to accurately align with the liquid inlet of the valve body through the guiding of the guide posts, so as to perform quick reset, making the overall operation not prone to jamming. At the same time, there is always a gap between the snap ring and the inner wall of the cylinder body. The setting of the guide posts makes the movement trajectory stable, reducing the possibility of collision between the snap ring and the inner wall of the cylinder body, thus making the overall service life longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG Figure 1 is a structural diagram of the present utility model;

[0042] FIG Figure 2 is a sectional structural diagram of the present utility model when the first mounting ring and the second mounting ring are attached;

[0043] FIG Figure 3 is an enlarged schematic diagram of A in FIG Figure 2 ;

[0044] FIG Figure 4 is a sectional structural diagram of the present utility model when the first mounting ring and the second mounting ring are arranged at intervals;

[0045] FIG Figure 5 is an enlarged schematic diagram of B in FIG Figure 4 ;

[0046] FIG Figure 6 is a disassembled schematic diagram of the cylinder body and the cover body;

[0047] Appendix Figure 7 is the structural diagram of the snap ring;

[0048] Appendix Figure 8 is the sectional structural diagram of the vertical plate arranged in the valve body;

[0049] Appendix Figure 9 is the structural diagram of the valve body arranged on the diluter;

[0050] Description of reference numerals: 1. Valve body, 2. Liquid inlet, 3. Liquid outlet, 4. Cylinder body, 5. Cover body, 6. First mounting ring, 7. Second mounting ring, 8. Snap ring, 9. Opening, 10. Ear plate, 11. Through hole, 12. Sealing member, 13. Chamfer, 14. Inclined surface, 15. First magnet, 16. Second magnet, 17. Vertical plate, 18. Notch, 19. Guide post, 20. Machine body, 21. Output pipe, 22. Clean water input pipe, 23. Chemical agent input pipe, 24. Liquid extraction pipe, 25. Threaded surface. Detailed implementation manners

[0051] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application. In the description of the present application, it should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Embodiment 1

[0052] This embodiment provides a magnet one-way valve, including a valve body 1, which has a liquid inlet 2 and a liquid outlet 3, and further includes:

[0053] A cylinder body 4, which is hollow and used to block the liquid inlet 2 of the valve body 1, and the lower end of the cylinder body 4 is provided with an opening 9;

[0054] A cover body 5, which covers the opening 9 of the cylinder body 4 and is fixedly connected to the cylinder body 4;

[0055] A first mounting ring 6 is provided on the outer side of the cylinder body 4;

[0056] A second mounting ring 7 is provided on the outer side of the cover body 5;

[0057] A snap ring 8 which has an opening 9 and can be temporarily expanded radially by an external force;

[0058] A magnet assembly for driving the cylinder body 4 to block the liquid inlet 2 of the valve body 1;

[0059] A limiting structure is provided at the liquid outlet 3 of the valve body 1 for limiting the stroke of the cylinder body 4 and the cover body 5;

[0060] Wherein, after the cover body 5 is covered on the cylinder body 4, the first mounting ring 6 and the second mounting ring 7 are arranged in a fitting manner, the inner contour of the snap ring 8 matches the outer contour after the first mounting ring 6 and the second mounting ring 7 are fitted, and the snap ring 8 is hoop-mounted on the first mounting ring 6 and the second mounting ring 7.

[0061] The upper and lower ends of the valve body 1 have threaded surfaces 25 for connecting with pipelines.

[0062] In this technical solution, the magnet assembly can be magnets arranged in the valve body 1 and the cylinder body 4. The magnet in the valve body 1 is arranged at the liquid inlet 2 of the valve body 1. When there is no liquid inlet, the cylinder body 4 is magnetically adsorbed at the liquid inlet 2 of the valve body 1 by the magnet in the cylinder body 4. An outer ring of the cylinder body 4 is sleeved with a sealing ring which abuts against the inner wall of the valve body 1, thereby blocking the liquid inlet 2 of the valve body 1;

[0063] When liquid inlet is required, a pipeline is connected to the liquid inlet 2 of the valve body 1, and the other end of the pipeline is placed in the liquid to be pumped. The liquid outlet 3 of the valve body 1 is connected to a pump through a pipeline (this is the prior art and will not be elaborated here too much) for pumping gas and liquid. When liquid inlet, the pump is started, and the pump body operates to pump air so that the air pressure at the liquid outlet 3 is relatively small. When the pressure difference between the liquid outlet 3 and the liquid inlet 2 is greater than the magnetism of the magnet assembly, the cylinder body 4 will be flushed open, creating a gap between the liquid inlet 2 and the cylinder body 4, and thus the liquid is sucked in from this gap;

[0064] Alternatively, the pump body can also be arranged on the pipeline connected to the liquid inlet 2 of the valve body 1, and the liquid is pumped towards the liquid inlet 2 of the valve body 1 through the pneumatic pump body. At this time, the hydraulic pressure at the liquid inlet 2 of the valve body 1 becomes larger. When the hydraulic pressure at the liquid inlet 2 of the valve body 1 is greater than the magnetic force of the magnet, the cylinder body 4 will be flushed open by the liquid, creating a gap between the liquid inlet 2 and the cylinder body 4, and thus the liquid is input into the valve body 1 from this gap.

[0065] The magnet is arranged in the hollow of the cylinder 4. When installing the magnet, firstly, the magnet is placed in the hollow of the cylinder 4 from the opening 9 of the cylinder 4, and then the cover 5 is covered on the opening 9 of the cylinder 4, so that the cover 5 is fixedly connected with the cylinder 4. The cover 5 can be spirally arranged on the cylinder 4, or can be clamped on the cylinder 4 by interference fit, so that the cover 5 and the cylinder 4 finally cover the magnet in the hollow of the cylinder 4.

[0066] Since the outer sides of the cylinder 4 and the cover 5 are respectively provided with a first mounting ring 6 and a second mounting ring 7, after the cover 5 is covered on the cylinder 4, the first mounting ring 6 and the second mounting ring 7 are closely fitted;

[0067] Next, the first mounting ring 6 and the second mounting ring 7 need to be clamped with a snap ring 8. The snap ring 8 has a certain elastic deformation capacity, and can be temporarily radially expanded by an external force, and recover after the load is removed. The inner diameter of the snap ring 8 under normal conditions is slightly smaller than the outer diameters of the first mounting ring 6 and the second mounting ring 7.

[0068] Since the inner contour of the snap ring 8 matches the outer contour formed by the first mounting ring 6 and the second mounting ring 7, when it is necessary to tighten the first mounting ring 6 and the second mounting ring 7, the snap ring 8 is pried open by external force to enlarge the opening 9 of the snap ring 8, so that its inner ring is radially expanded. When the inner ring of the snap ring 8 is slightly larger than the first mounting ring 6 and the second mounting ring 7, it is inserted into the cylinder 4 or the cover 5 so that the inner ring of the snap ring 8 corresponds to the outer ring of the first mounting ring 6 and the second mounting ring 7, and then the snap ring 8 is loosened to reset the snap ring 8, so that the snap ring 8 tightens the first mounting ring 6 and the second mounting ring 7;

[0069] At the same time, the clamping ring 8 can adopt the metal fluorine lining process to improve its corrosion resistance, and the valve body 1 and internal components can be made of PTFE material, so that the utility model as a whole can be applied to situations with corrosive liquids.

[0070] Through this structural design, the first mounting ring 6 and the second mounting ring 7 are tightened by setting a snap ring 8, so that after the cover body 5 is covered on the cylinder body 4 to cover the magnet, the inner contour of the snap ring 8 matches the outer contour formed by the first mounting ring 6 and the second mounting ring 7, and the snap ring 8 limits the position of the first mounting ring 6 and the second mounting ring 7 after they are fitted, so that the first mounting ring 6 and the second mounting ring 7 will not loosen after being tightened, avoiding the formation of a gap between the first mounting ring 6 and the second mounting ring 7, thereby preventing liquid from entering the magnet and corroding the magnet. Example 2

[0071] This embodiment provides a magnet one-way valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0072] Furthermore, it also includes:

[0073] There are two ear plates 10, and both ear plates 10 are fixedly connected to the outer surface of the clamping ring 8;

[0074] The two ear plates 10 are respectively located at two sides of the opening 9 of the clamping ring 8 , and a through hole 11 is formed through the ear plates 10 .

[0075] Through this structural design, by providing ear plates 10 with through holes 11 on both sides of the opening 9 of the snap ring 8, when the snap ring 8 needs to be pried, a circlip pliers can be used, and the two pliers mouths of the circlip pliers are respectively inserted into the through holes 11 of the ear plates 10 of the snap ring 8, and then the handles of the circlip pliers are pressed, so that the two pliers mouths of the circlip pliers can drive the ear plates 10 away from each other, thereby driving the snap ring 8 to expand radially, so that the radial expansion of the snap ring 8 can be more labor-saving and convenient by using circlip pliers. Example 3

[0076] This embodiment provides a magnet one-way valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0077] Furthermore, it also includes:

[0078] Seal 12;

[0079] Among them, after the cover body 5 is covered on the cylinder body 4, the first mounting ring 6 and the second mounting ring 7 are spaced apart, the sealing member 12 is sleeved on the cover body 5 and located in the space, and the upper and lower side surfaces of the sealing member 12 are respectively in contact with the first mounting ring 6 and the second mounting ring 7.

[0080] Through this structural design, by spacing the first mounting ring 6 and the second mounting ring 7 and arranging the seal 12 in the spacing, the sealing performance between the cover body 5 and the cylinder body 4 is improved, and liquid can be better prevented from entering the interior through the joint between the cylinder body 4 and the cover body 5. Example 4

[0081] This embodiment provides a magnet one-way valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0082] Furthermore, the ends of the first mounting ring 6 and the second mounting ring 7 that are away from each other are both provided with chamfers 13 , and the inner ring of the clamping ring 8 has an inclined surface 14 that matches the chamfer 13 .

[0083] Through this structural design, chamfers 13 are provided at the ends of the first mounting ring 6 and the second mounting ring 7 that are away from each other, and the inner ring of the snap ring 8 has an inclined surface 14 that matches the chamfer 13. When the snap ring 8 is radially clamped on the first mounting ring 6 and the second mounting ring 7, the inclined surface 14 will abut against the chamfer 13, thereby changing the direction of the force through the cooperation of the inclined surface 14 and the chamfer 13, so that the first mounting ring 6 has a force towards the second mounting ring 7, and the second mounting ring 7 has a force towards the first mounting ring 6, making the cooperation between the first mounting ring 6 and the second mounting ring 7 tighter, further preventing liquid from flowing in and loosening between the cover body 5 and the cylinder body 4. Example 5

[0084] This embodiment provides a magnet one-way valve. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0085] Furthermore, the magnet assembly includes:

[0086] A first magnet 15, which is located inside the hollow of the cylinder body 4;

[0087] A second magnet 16, which is fixedly arranged inside the valve body 1, and the second magnet 16 is located on the side of the valve body 1 close to the liquid inlet 2.

[0088] Through this structural design, by providing the first magnet 15 and the second magnet 16, when there is no liquid inlet, the cylinder body 4 is magnetically adsorbed at the liquid inlet 2 of the valve body 1 through the first magnet 15 and the second magnet 16, thereby facilitating the blocking of the liquid inlet 2 of the valve body 1. The second magnet 16 can be in the shape of a circular ring, located at the position of the valve body 1 close to the liquid inlet 2 and surrounding the liquid inlet 2. The first magnet 15 is in the shape of a cylinder, and the first magnet 15 is located inside the inner ring of the second magnet 16, making the adsorption effect better. Example 6

[0089] This embodiment provides a magnet one-way valve. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0090] Furthermore, the limiting structure includes:

[0091] Vertical plates 17, and there are several of them. The several vertical plates 17 are all circumferentially spaced apart inside the liquid outlet 3;

[0092] Among them, one end of each of the several vertical plates 17 is fixedly connected to the valve body 1, and a gap 18 is formed between the other ends of the several vertical plates 17. The size of the gap 18 is smaller than the sizes of the cylinder body 4 and the cover body 5.

[0093] In this technical solution, several vertically arranged plates 17 that are circumferentially spaced and arrayed limit the moving stroke of the cylinder body 4 and the cover body 5. Moreover, due to the spaced arrangement of the several vertically arranged plates 17, while playing a limiting role, they do not affect the fluid transmission.

[0094] Through this structural design, by arranging several vertically arranged plates 17 that are circumferentially spaced, when the liquid flushes open the cylinder body 4, the cylinder body 4 will drive the cover body 5 to move towards the vertically arranged plates 17. However, since the gap 18 formed by the several vertically arranged plates 17 is smaller than the sizes of the cylinder body 4 and the cover body 5, when the cylinder body 4 drives the cover body 5 to move towards the vertically arranged plates 17, it cannot pass through the gap 18. Thus, while ensuring that the cylinder body 4 releases the blockage of the liquid inlet 2, it will not be flushed too far by the fluid and cannot ensure the magnetic connection. It is convenient for the position of the cylinder body 4 to always be in a state where it can be reset. Therefore, after the fluid stops being inhaled, the cylinder body 4 continues to block the liquid inlet 2 through magnetic reset. Embodiment 7

[0095] This embodiment provides a magnet one-way valve. In addition to including the technical solution of the above embodiment, it also has the following technical features.

[0096] Furthermore, it further includes:

[0097] A guide post 19, the lower end of the cover body 5 is fixedly provided with the guide post 19, and the guide post 19 is matched with the gap 18;

[0098] Wherein, the guide post 19 is arranged to move up and down in the gap 18.

[0099] Through this structural design, by arranging the guide post 19 that is matched with the gap 18, it has a guiding effect on the moving trajectories of the cylinder body 4 and the cover body 5. When the cylinder body 4 is reset, it is convenient for the cylinder body 4 to be accurately aligned with the liquid inlet 2 of the valve body 1 through the guiding of the guide post 19, so as to perform quick reset, making the overall operation not prone to jamming. At the same time, there is always a gap between the snap ring 8 and the inner wall of the cylinder body 4. The arrangement of the guide post 19 makes the moving trajectory stable, reducing the possibility of collision between the snap ring 8 and the inner wall of the cylinder body 4, thereby making the overall service life longer. Embodiment 8

[0100] This embodiment provides a guest room diluter. In addition to including the technical solution of the above embodiment, it also has the following technical features.

[0101] It includes:

[0102] A machine body 20, which has an output pipe 21, a fresh water input pipe 22, and a medicament input pipe 23;

[0103] The liquid outlet 3 of the valve body 1 is connected to the medicine input pipe 23 of the body 20 , and the liquid inlet 2 of the valve body 1 is connected to a liquid extraction pipe 24 .

[0104] In the present technical solution, the diluter is a Venturi dilution distributor (the working principle is a prior art and will not be elaborated on here). In guest room applications, this device is usually used to control the concentration of cleaning agents or disinfectants to ensure consistent effects each time they are used while avoiding waste.

[0105] The body 20 also has a venturi tube (not shown in the figure), the output end of the venturi tube is connected to the output pipe 21 of the body 20, and the output ends of the clean water input pipe 22 and the reagent input pipe 23 are connected to the input end of the venturi tube.

[0106] Since cleaning agents or disinfectants are highly corrosive, in this embodiment, the clamp ring 8 adopts a metal fluorine lining process to improve its corrosion resistance, and the valve body 1 and internal components are made of PTFE, so that the one-way valve can be used in the case of corrosive liquids;

[0107] In actual use, a first container for disinfectant or cleaning agent and a second container for holding clean water are provided outside, the clean water input pipe 22 of the machine body 20 is connected to a pipe and extended into the second container for taking water, and a switch valve (not shown in the figure, this is the prior art, and no further description is made here) is provided on the water intake pipe for opening and closing the water intake pipe; then the liquid intake pipe 24 is placed in the first container for absorbing the cleaning agent or disinfectant, and the output pipe 21 of the machine body 20 is connected to a pump through a pipe;

[0108] During operation, the pump is started and the switch valve is opened. The pump body drives the clean water input pipe 22 to transport the clean water in the second container to the body 20. At the same time, when the clean water passes through the venturi tube, negative pressure is generated. This negative pressure is transmitted to the agent input pipe 23, so that the liquid outlet 3 area of ​​the valve body 1 is in a negative pressure state. When the pressure difference between the liquid outlet 3 and the liquid inlet 2 of the valve body 1 is greater than the magnetic force between the first magnet 15 and the second magnet 16, the cylinder 4 will be opened by the pressure, and the blockage of the liquid inlet 2 of the valve body 1 will be released, thereby transmitting the negative pressure to the liquid collection pipe 24, so that the liquid collection pipe 24 sucks the detergent or disinfectant in the first container into the venturi tube, and discharges it from the output pipe 21 of the body 20 after mixing.

[0109] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments in the specification of the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A magnet check valve, comprising a valve body (1) having a liquid inlet (2) and a liquid outlet (3), characterized in that: Also includes: The cylinder (4) is hollow and used to block the liquid inlet (2) of the valve body (1); an opening (9) is provided at the lower end of the cylinder (4); A cover body (5) which covers the opening (9) of the cylinder body (4) and is fixedly connected to the cylinder body (4); A first mounting ring (6), the outer side of the cylinder (4) having a first mounting ring (6); A second mounting ring (7), the outer side of the cover body (5) having a second mounting ring (7); A snap ring (8) having an opening (9), wherein the snap ring (8) can be temporarily radially expanded by an external force; A magnet assembly, used for driving the cylinder (4) to seal the liquid inlet (2) of the valve body (1); A limiting structure, wherein a limiting structure is provided at the liquid outlet (3) of the valve body (1) for limiting the travel of the cylinder body (4) and the cover body (5); Wherein, after the cover body (5) is covered on the cylinder body (4), the first mounting ring (6) and the second mounting ring (7) are arranged in close contact with each other, the inner contour of the clamping ring (8) matches the outer contour of the first mounting ring (6) and the second mounting ring (7) after being in close contact with each other, and the clamping ring (8) is clamped on the first mounting ring (6) and the second mounting ring (7).

2. A magnet one-way valve according to claim 1, characterized in that: Also includes: There are two ear plates (10), and both ear plates (10) are fixedly connected to the outer surface of the clamping ring (8); The two ear plates (10) are respectively located on both sides of the opening (9) of the clamping ring (8), and a through hole (11) is formed through the ear plate (10).

3. A magnet check valve according to claim 2, characterized in that , also includes: Seal (12); Wherein, after the cover body (5) is covered on the cylinder body (4), the first mounting ring (6) and the second mounting ring (7) are spaced apart, the sealing member (12) is sleeved on the cover body (5) and located in the space, and the upper and lower side surfaces of the sealing member (12) are respectively disposed in contact with the first mounting ring (6) and the second mounting ring (7).

4. A magnet one-way valve according to claim 3, characterized in that: The ends of the first mounting ring (6) and the second mounting ring (7) that are away from each other are both provided with chamfers (13), and the inner ring of the clamping ring (8) has an inclined surface (14) that matches the chamfer (13).

5. A magnet one-way valve according to any one of claims 1 to 4, characterized in that: The magnet assembly comprises: A first magnet (15) located in the hollow of the cylinder (4); The second magnet (16) is fixedly arranged inside the valve body (1), and the second magnet (16) is located on a side of the valve body (1) close to the liquid inlet (2).

6. A magnet one-way valve according to claim 5, characterized in that: The limiting structure comprises: A plurality of vertical plates (17), each of which is distributed in the liquid outlet (3) at circumferential intervals; One end of each of the vertical plates (17) is fixedly connected to the valve body (1), and a gap (18) is formed between the other ends of the vertical plates (17), wherein the size of the gap (18) is smaller than the size of the cylinder (4) and the cover body (5).

7. A magnet one-way valve according to claim 6, characterized in that: Also includes: A guide column (19), wherein the lower end of the cover body (5) is fixedly provided with a guide column (19), and the guide column (19) matches the notch (18); The guide column (19) is movably arranged in the notch (18) up and down.

8. A guest room diluter, comprising a magnet one-way valve as claimed in any one of claims 1 to 7, characterized in that: include: A machine body (20) having an output pipe (21), a clean water input pipe (22) and a medicine input pipe (23); The liquid outlet (3) of the valve body (1) is connected to a medicine input pipe (23) of the machine body (20), and the liquid inlet (2) of the valve body (1) is connected to a liquid extraction pipe (24).

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