Automatic water supply and drainage valve

Abstract

The utility model discloses an automatic water supply and drainage valve which comprises a valve body. The valve body is provided with a water flow channel, a water inlet, a water outlet and a dosing channel, the electromagnetic valve is connected to the valve body, and the electromagnetic valve is provided with a valve element for opening or closing a water flow channel between the water inlet and the dosing channel; and the movable plug is arranged in the medicine adding channel and used for opening or closing the medicine adding channel, and when the movable plug opens the medicine adding channel, medicine is added into the water flow channel through the medicine adding channel. The automatic water supply and drainage valve is suitable for adding various medicaments, simple in structure, convenient to popularize and high in automation degree.

Description

Technical Field

[0001] This application relates to the field of valve technology, specifically to an automatic water supply and drainage valve. Background Technology

[0002] In fields such as water supply and drainage, air conditioning, boiler water, circulating water, and wastewater treatment systems, chemicals such as polyaluminum chloride, lime, activated carbon, calcium carbonate, and sodium sulfide are regularly added to pipes to prevent corrosion, scaling, and bacterial growth. These chemicals are used to adjust the pH level and disinfect the water, ensuring the lifespan and smooth operation of the pipes.

[0003] Current technologies for adding chemicals to water pipes mostly involve closing or disconnecting the pipe, adding a certain amount of chemical, and then reconnecting the pipe. This is not only cumbersome but also affects the normal operation of the pipeline. To address this, some technologies utilize pipeline control valves for chemical addition. For example, Chinese patent application CN202343112U, entitled "A Chemical Concentration Adjustment Valve," features a dosing port with a plug at the top of the valve body and a chemical tank connected to the bottom. Water enters the valve body through the inlet, flows into the chemical tank, mixes with the chemical solution, enters the valve core through the central pipe, and then flows out through the outlet. The dosing port is used to replenish the chemical solution in the chemical tank.

[0004] The control valves or drain valves for adding chemicals to pipelines mentioned above have the following drawbacks in actual use: they are only suitable for adding liquid chemicals, and are not very suitable for powdered or granular chemicals; in addition, they have complex structures, high production costs, and low automation, making them inconvenient to promote and use. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide an automatic water supply and drainage valve that is suitable for the addition of various agents, has a simple structure, is easy to promote, and has a high degree of automation.

[0006] The technical solution of this application is to provide an automatic water supply and drainage valve having the following structure: including...

[0007] The valve body has a water flow channel and an inlet, an outlet and a dosing channel connected to the water flow channel;

[0008] A solenoid valve is connected to the valve body, and the solenoid valve has a valve core that opens or closes the water flow channel between the water inlet and the dosing channel;

[0009] A movable plug is disposed within the dosing channel to open or close the dosing channel, and when the movable plug opens the dosing channel, a chemical agent is added to the water flow channel through the dosing channel.

[0010] In some embodiments, the medicine adding channel is provided with a medicine adding opening, the movable plug comprises an elastic member and a plug body for opening or closing the medicine adding opening, the elastic member is connected with the plug body and used to make the plug body always have a movement tendency of moving towards the medicine adding opening to close the medicine adding opening.

[0011] In some embodiments, the medicine adding opening is provided with an annular boss extending towards the water flow channel in the axial direction, and an annular sealing body is connected with the end face of the end of the plug body close to the annular boss and used to seal against the annular boss.

[0012] In some embodiments, the automatic water supply and drainage valve further comprises a thimble assembly, the thimble assembly comprises a hollow base and a thimble body connected with the base and extending in the axial direction, the base is connected with the medicine adding channel and can move in the axial direction of the medicine adding channel to make the thimble body push the plug body to open the medicine adding opening.

[0013] In some embodiments, the base is threadedly connected with the medicine adding channel and can move in the axial direction of the medicine adding channel when the base is rotated.

[0014] In some embodiments, the base is slidingly connected with the medicine adding channel in the axial direction, and the thimble assembly further comprises a return spring connected with the base and used to make the base always have a movement tendency of moving away from the plug body.

[0015] In some embodiments, the valve body is provided with a connecting portion which is hollow and communicates with the water flow channel, the connecting portion is sequentially connected with a hollow first connecting seat and a second connecting seat in the axial direction, the central holes of the connecting portion, the first connecting seat and the second connecting seat jointly form the medicine adding channel, the medicine adding opening is arranged in the second connecting seat, and the thimble assembly is arranged in the second connecting seat.

[0016] In some embodiments, the water flow channel is connected with a filter body.

[0017] In some embodiments, the first connecting seat is threadedly connected with the connecting portion, the filter body is arranged to extend in the axial direction of the medicine adding channel, and the lower end of the filter body is connected with the first connecting seat, and the filter body can be rotated when the first connecting seat is rotated.

[0018] In some embodiments, the filter body is a filter body wound into a cylindrical shape by a filter screen.

[0019] In some embodiments, the valve body is provided with at least one sensor interface for connecting a water quality detection sensor.

[0020] In some embodiments, the angle between the center line of the dosing channel and the center line of the water flow channel is 45-90 degrees.

[0021] In summary, the automatic water supply and drainage valve of the present application has the following advantages compared with related art: the automatic water supply and drainage valve is provided with a dosing channel and an electromagnetic valve on the valve body, the electromagnetic valve drives the valve core to move to control the flow and on-off of the water flow channel, the dosing channel is connected with a movable plug which can open or close the dosing channel, and when the movable plug opens the dosing channel, the dosing channel can be used to add reagent into the water flow channel. Therefore, when purifying water quality or adjusting the pH value of water in the pipeline, the movable plug can be opened to add reagent into the water flow channel through the dosing channel of the valve body. The dosing channel of the automatic water supply and drainage valve is suitable for adding various reagents, and the automatic water supply and drainage valve has simple structure and is easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structure schematic diagram of an automatic water supply and drainage valve of some embodiments of the present application.

[0023] Figure 2 is a side view of an automatic water supply and drainage valve of some embodiments of the present application.

[0024] Figure 3 is a cross-sectional structure schematic diagram of an automatic water supply and drainage valve of some embodiments of the present application.

[0025] Figure 4 is a partial cross-sectional view of an automatic water supply and drainage valve of some embodiments of the present application.

[0026] Figure 5 is an installation structure schematic diagram of an automatic water supply and drainage valve of some embodiments of the present application.

[0027] Figure 6 is a structure schematic diagram of an automatic water supply and drainage valve of some embodiments of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, valve body, 100, water flow channel, 101, water inlet, 102, water outlet, 103, dosing channel, 104, sensor interface, 105, connecting part, 106, first connecting seat, 107, second connecting seat, 108, step, 109, dosing port, 110, annular boss, 111, snap spring, 2, electromagnetic valve, 200, valve core, 3, movable plug, 300, plug body, 301, elastic member, 302, annular sealing body, 4, thimble assembly, 400, base, 401, thimble body, 5, filter body. DETAILED DESCRIPTION

[0030] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0031] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0032] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1-5 As shown in the figure; this application discloses an automatic water supply and drainage valve, which can be connected to pipelines in water supply and drainage, boiler water, circulating water, wastewater treatment systems, as well as petroleum, chemical, environmental protection, and water supply systems. Its structure includes a valve body 1 and a solenoid valve 2 mounted on the valve body 1. The valve body 1 has a water flow channel 100 and an inlet 101 and an outlet 102 connected to the water flow channel 100. Water from the pipeline enters the water flow channel 100 of the valve body 1 through the inlet 101 and flows through the outlet. 102 Discharge; Solenoid valve 2 is connected to valve body 1 by fasteners. Solenoid valve 2 has valve core 200 that opens or closes water flow channel 100. Solenoid valve 2 is a relatively mature technology. It generally includes solenoid coil, valve stem, stationary iron core, moving iron core, valve core 200 and control circuit, etc. When the solenoid coil is energized, it can drive the moving iron core to move the valve core 200 to open or close the water flow channel 100 in valve body 1 and adjust the water flow rate in water flow channel 100.

[0035] It is not difficult to understand that the water flow pipeline will be corroded, scaled and bacteria breeding, so it is necessary to add agents such as polyaluminum chloride, lime, activated carbon, calcium carbonate, sodium sulfide and the like in the water flow pipeline to adjust the pH value and water quality sterilization and the like in the pipeline. In the embodiment, the valve body 1 further comprises a dosing channel 103 communicated with the water flow channel 100, the dosing channel 103 is arranged in the valve body 1 between the water inlet 101 and the water outlet 102, and the junction of the dosing channel 103 and the water flow channel 100 is arranged between the valve core 200 and the water outlet 102, so that the valve core 200 of the electromagnetic valve 2 controls the opening and closing of the water flow channel 100 between the water inlet 101 and the dosing channel 103. In order to facilitate the user to add the agent, a movable plug 3 is arranged in the dosing channel 103, the movable plug 3 is used to open or close the dosing channel 103, and when the movable plug 3 opens the dosing channel 103, the agent is added to the water flow channel 100 through the dosing channel 103. That is, in the normal state, the movable plug 3 is in the state of closing the dosing channel 103, and when the agent needs to be added, the movable plug 3 is opened, so that the agent flows into or is added to the water flow channel 100 of the valve body 1 through the dosing channel 103.

[0036] In the embodiment, the automatic water supply and drainage valve is provided with the dosing channel 103 and the electromagnetic valve 2 on the valve body 1, the electromagnetic valve 2 drives the valve core 200 to move to control the flow and opening and closing of the water flow channel 100, the dosing channel 103 is connected with the movable plug 3 which can open or close the dosing channel 103, and when the movable plug 3 opens the dosing channel 103, the agent can be added to the water flow channel 100 through the dosing channel 103. Therefore, when the water quality is purified or the pH value of the water in the pipeline is adjusted, the movable plug 3 can be opened, the agent can be added to the water flow channel 100 through the dosing channel 103 of the valve body 1, and the setting of the dosing channel 103 of the automatic water supply and drainage valve is not only suitable for adding various agents, but also the automatic water supply and drainage valve has simple structure and is easy to use.

[0037] Further in the embodiment, the dosing channel 103 is provided with a dosing opening 109, the movable plug 3 comprises an elastic member 301 and a plug body 300 used to open or close the dosing opening 109, the elastic member 301 is connected with the plug body 300 and used to make the plug body 300 always have a movement trend of moving to close the dosing opening 109. The plug body 300 is closed to the dosing opening 109 under the elastic force of the elastic member 301, when the agent needs to be added, the plug body 300 is pushed to compress the elastic member 301, so that the plug body 300 is separated from the dosing opening 109 to open the dosing opening 109. It not only has simple structure, but also is convenient for adding the agent, and when the agent is not added, the water in the water flow channel 100 in the valve body 1 can be prevented from leaking from the dosing channel 103.

[0038] For example, referring to Figure 2 , Figure 3 ,Figure 4 and Figure 5 As shown in FIGS. 1, 2 and 3, the valve body 1 is provided with a connecting portion 105 which is hollow and communicates with the water flow channel 100, the connecting portion 105 is sequentially connected with a hollow first connecting seat 106 and a hollow second connecting seat 107 in the axial direction, the central holes of the connecting portion 105, the first connecting seat 106 and the second connecting seat 107 jointly form the dosing channel 103, the dosing port 109 is arranged in the second connecting seat 107 and located at one end of the second connecting seat 107 close to the first connecting seat 106, that is, the dosing port 109 is formed at one end of the second connecting seat 107 close to the first connecting seat 106, the plug body 300 and the elastic member 301 are arranged in the first connecting seat 106, the first connecting seat 106 is provided with an annular step 108, the plug body 300 abuts and seals the dosing port 109, one end of the elastic member 301 abuts the step 108 on the first connecting seat 106, the other end of the elastic member 301 abuts the plug body 300, the elastic force of the elastic member 301 makes the plug body 300 close and seal the dosing port 109, when the plug body 300 is pushed to compress the elastic member 301 to separate from the dosing port 109, the dosing port 109 can be opened, at this time, the dosing channel 103 can be used to add medicine into the water flow channel 100. When the external force pushing the plug body 300 disappears, the plug body 300 is reset under the elastic force of the elastic member 301 to close the dosing port 109 again.

[0039] In the foregoing embodiments, the first connecting seat 106 and the connecting portion 105, and the first connecting seat 106 and the second connecting seat 107 can be connected by threads, so as to facilitate assembly or disassembly.

[0040] Further in the embodiment, referring to FIGS. 4, 5 and 6, the dosing port 109 is provided with an annular boss 110 extending in the axial direction towards the water flow channel 100, the annular boss 110 abuts and seals the annular sealing body 302 connected to one end face of the plug body 300 close to the annular boss 110. When the annular sealing body 302 of the plug body 300 abuts and seals the annular boss 110 of the dosing port 109, the cooperation of the annular sealing body 302 and the annular boss 110 makes the sealing performance better. Figure 3 Figure 4

[0041] ​​In order to facilitate the opening of the movable plug 3 when adding medicine, the automatic water supply and drainage valve further comprises a thimble assembly 4 in the embodiment, which comprises a hollow base 400 and a thimble body 401 connected to the base 400 and extending axially. The base 400 is connected in the medicine adding channel 103 and can move axially along the medicine adding channel 103 to open the medicine adding port 109 by the thimble body 401. The base 400 is hollow and has a central hole. After the thimble body 401 on the base 400 opens the medicine adding port 109, the medicine can enter the medicine adding channel 103 through the central hole of the base 400. Therefore, a medicine pipe for adding medicine can be connected to the tail end of the base 400. When the thimble body 401 on the base 400 opens the plug 300, the medicine can be added to the medicine adding channel 103. The operation is very simple and convenient.

[0042] For example, as shown in Figure 4 and Figure 5 , the thimble assembly 4 is an integral piece which is arranged in the inner hole of the second connecting seat 107. The outer end of the second connecting seat 107 is connected with a snap spring 111 to limit the thimble assembly 4 from separating from the inner hole of the second connecting seat 107. A sealing ring is arranged between the outer circumferential wall of the base 400 of the thimble assembly 4 and the inner wall of the inner hole of the second connecting seat 107 to seal them and avoid medicine leakage, realizing no-leakage medicine adding. When the base 400 moves towards the plug 300, the thimble body 401 on the base 400 can open the plug 300 to open the medicine adding port 109.

[0043] The base 400 of the thimble assembly moves axially in the inner hole of the second connecting seat 107, which has various embodiments. In the embodiment, as shown in Figure 3 , Figure 4 and Figure 5 , an inner thread is arranged on the inner wall of the inner hole of the second connecting seat 107 and an outer thread is arranged on the outer circumferential wall of the base 400. Therefore, the base 400 is screwed in the inner hole of the second connecting seat 107 and can move axially along the medicine adding channel 103 or the inner hole of the second connecting seat 107 when the base 400 rotates.

[0044] In other embodiments, as shown in Figure 6As shown, the base 400 is axially slidably connected in the medicine adding channel 103, and the ejector pin assembly 4 further comprises a reset spring connected with the base 400 for always making the base 400 have a movement tendency of moving away from the plug body 300. That is, the base 400 is axially slidably connected in the inner hole of the second connecting seat 107, one end of the reset spring abuts against the inner wall of the second connecting seat 107, and the other end abuts against the base 400, so that the base 400 is in a position away from the plug body 300. When adding medicine, the base 400 is moved to the direction of approaching the plug body 300 to push open the plug body 300 and open the medicine adding port 109 for adding medicine. After adding medicine, the ejector pin assembly 4 is released, and under the elastic force of the reset spring, the ejector pin body 401 of the base 400 is away from the plug body 300 and is reset, and at the same time, the plug body 300 closes the medicine adding port 109 again.

[0045] In the embodiment, the water flow channel 100 of the automatic water supply and drainage valve is connected with a filter body 5. As shown in Figure 3 、 Figure 4 and Figure 5 , the filter body 5 is used for filtering impurity particles in the water flow in the water flow channel 100, so that the medicine can be more quickly diffused in the pipeline under the action of the water flow. Further in the embodiment, in order to facilitate the installation and replacement of the filter body 5, the filter body 5 is arranged to axially extend along the medicine adding channel 103 and is at least partially arranged in the medicine adding channel 103.

[0046] For example, as shown in Figure 4 and Figure 5 , the filter body 5 is a cylindrical filter screen wound at one end in the inner hole of the connecting portion 105 and abuts against or is connected with the end face of the first connecting seat 106, and the other end extends upwardly into the water flow channel 100 and filters the water flow in the water flow channel 100. When the filter body 5 is installed or replaced, the filter body 5 can be taken out only by taking down the first connecting seat 106, and the operation is very convenient.

[0047] It can be understood that after the filter 5 is used for a period of time, impurity particles will be attached to the filter 5, and if not cleaned in time, the flow speed of the water flow in the water flow channel 100 will be affected, and even the diffusion speed of the medicament in the pipeline will be affected; therefore, in the embodiment, the first connecting seat 106 is threadedly connected with the connecting portion 105, the filter 5 is arranged in an axial extension along the medicament adding channel 103, and the lower end of the filter 5 is connected with the first connecting seat 106, and when the first connecting seat 106 is rotated, the filter 5 can be driven to rotate. When the filter 5 needs to be cleaned, the first connecting seat 106 is only needed to be rotated in a clockwise direction to drive the filter 5 to rotate, so that the surface of the filter 5 facing the water inlet is rotated to face the water outlet, that is, the filter 5 is rotated by 180 degrees, so that under the action of the water flow, backwashing of the filter 5 can be realized to automatically clean the impurity particles attached to the filter 5, and the operation is convenient, and the filter 5 does not need to be taken out.

[0048] In the embodiment, the included angle between the medicament adding channel 103 and the water flow channel 100 can be an acute angle or a right angle, that is, the included angle between the center line of the medicament adding channel 103 and the center line of the water flow channel 100 is 45-90 degrees. Therefore, the filter 5 is arranged in an inclined state or the filter 5 can also be arranged in a vertical state perpendicular to the water flow channel 100, so that the medicament adding operation is convenient.

[0049] Further in the embodiment, as shown in Figure 1 and Figure 4 , the valve body 1 is provided with at least one sensor interface 104 for connecting a water quality detection sensor. Therefore, the user can install a water quality detection sensor in the sensor interface 104, such as an acid-base degree detection sensor capable of detecting the acid-base degree of the water flow, a water flow turbidity sensor, a dissolved oxygen sensor and the like. When the sensor detects that the acid-base degree of the water flow in the pipeline is abnormal, the electromagnetic valve 2 is started to close the water flow channel 100, or the medicament adding operation is performed, so that automatic medicament adding and automatic water quality adjustment are realized, and no one needs to be on duty, so that the automatic water supply and drainage valve can realize intelligent control medicament adding and is convenient to popularize. Further, a pressure sensor can also be connected in the sensor interface 104 to realize real-time monitoring of the water pressure in the pipeline, and when the water pressure is insufficient, the flow in the water flow channel can be adjusted through the electromagnetic valve to automatically adjust the water pressure.

[0050] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In the description of the application, the description of the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" and the like means that the specific features, mechanisms, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0052] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic water supply and drain valve characterized by: The utility model relates to an automatic water supply and drainage valve, which comprises a valve body, an electromagnetic valve, a movable plug and a needle assembly. The valve body has a water flow channel and a water inlet, a water outlet and a dosing channel connected with the water flow channel. The electromagnetic valve is connected to the valve body and has a valve core for opening or closing the water flow channel between the water inlet and the dosing channel. The movable plug is arranged in the dosing channel for opening or closing the dosing channel, and when the movable plug opens the dosing channel, a medicament is added to the water flow channel through the dosing channel.

2. The automatic water supply and drain valve according to claim 1, characterized by: The dosing channel is provided with a dosing port, and the movable plug comprises an elastic member and a plug body for opening or closing the dosing port.

3. The automatic water supply and drain valve according to claim 2, characterized by: The plug body is connected with a ring-shaped sealing body that abuts against the ring-shaped boss to seal.

4. The automatic water supply and drain valve according to claim 2, characterized by: The automatic water supply and drainage valve further comprises a needle assembly, which comprises a hollow base and a needle body connected to the base and extending axially.

5. The automatic water supply and drain valve according to claim 4, characterized in that: The base is connected to the dosing channel and can move axially along the dosing channel to make the needle body push the plug body to open the dosing port.

6. The automatic water supply and drain valve according to claim 4, wherein: The base is threadedly connected to the dosing channel and can move axially along the dosing channel when the base is rotated.

7. The automatic water supply and drain valve according to claim 4, wherein: The base is slidingly connected to the dosing channel axially, and the needle assembly further comprises a return spring connected to the base for making the base always have a movement tendency to move away from the plug body.

8. The automatic water supply and drain valve according to claim 7, characterized by: The valve body is provided with a hollow connecting portion connected with the water flow channel, and the connecting portion is sequentially connected with a hollow first connecting seat and a second connecting seat axially.

9. The automatic water supply and drain valve according to claim 8, characterized in that: The central holes of the connecting portion, the first connecting seat and the second connecting seat jointly form the dosing channel, the dosing port is arranged in the second connecting seat, and the needle assembly is arranged in the second connecting seat.

10. The automatic water supply and drain valve according to claim 9, characterized in that: A filter body is connected to the water flow channel.

11. The automatic water supply and drain valve according to claim 1, characterized in that: The first connecting seat is threadedly connected to the connecting portion, the filter body is arranged to extend axially along the dosing channel, and the lower end of the filter body is connected to the first connecting seat.

12. The automatic water supply and drain valve according to claim 1, wherein: When the first connecting seat is rotated, the filter body can be rotated. The filter body is a cylindrical filter body wound by a filter screen. The valve body is provided with at least one sensor interface for connecting a water quality sensor. The angle between the center line of the dosing channel and the center line of the water flow channel is 45-90 degrees.

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