An automatic waterline cleaning system

Abstract

The application discloses a kind of water line automatic cleaning systems, belong to water line cleaning technical field, including the output port of water line pipeline being communicated with drinking water pump outlet equipment by pipeline, water line pipeline is erected in the aquaculture factory shed by several support frames, several drinking water mechanisms for automatically supplying water to breeding livestock are fixedly installed on the water line pipeline by flange structure;The drinking water mechanism includes valve body, valve core, limit ring, ejector spring, installation slot one and water delivery hole, the structure of valve body is the joint of cylinder and cone cylinder, cylinder structure is used to be connected with water line pipeline, and cone cylinder structure is used to install valve core, and valve core is fixedly connected by inner cylinder and outer cylinder and is formed;The application is by setting the water inlet channel controlled by pressure valve and the sliding piston driven by water pressure in the valve core, the piston is scraped inner wall using water line itself pressurization, without disassembling drinking water device, can complete inner cylinder cleaning, effectively avoid the wear and tear and leakage failure of sealing element caused by frequent disassembly.

Description

Technical Field

[0001] This invention relates to the field of waterline cleaning technology, specifically to an automatic waterline cleaning system. Background Technology

[0002] An automatic waterline cleaning system is an integrated technology solution for automatically cleaning biofilm, scale, and deposits adhering to the inner walls of water supply pipes. It achieves this by introducing high-pressure water, cleaning fluid, or gas into the pipes to flush and remove the inner walls, ensuring water hygiene. In large-scale livestock and poultry farming, cleaning the biofilm on the inner walls of waterline pipes has always been a challenge for farming enterprises due to the long length of the pipes and the large number of drinkers. Some farming equipment companies have begun developing automatic flushing devices for livestock water supply networks. However, existing waterline cleaning solutions mainly focus on flushing the inner walls of the pipes, such as cleaning the pipe walls through ozone water circulation, high-pressure gas mixed with particulate matter scraping, or automatically adjusting the flushing strategy based on water quality conditions by adding water quality sensors.

[0003] A nipple-type drinker is a terminal drinking device installed on the aforementioned water line pipeline. It provides drinking water on demand by sliding the valve core up and down. Specifically, the valve core remains normally closed under the action of a spring. When poultry peck at the lower end of the valve core, the valve core moves upward, allowing the water inlet on its side wall to enter the inner cavity of the water line pipeline. Water flows into the inner cavity of the valve core through the water inlet and flows out from the lower end for the poultry to drink. After pecking and drinking, the valve core returns to its original position under the action of the spring, the water inlet disengages from the inner cavity of the water line pipeline, and the water circuit is cut off. As a result, when existing automatic water line cleaning devices flush the water line pipeline, the cleaning water can only flow through the inner cavity of the pipeline and cannot enter the internal flow channel of the normally closed valve core, making the inner cavity of the drinker valve core a cleaning blind spot.

[0004] Existing nipple-type waterers have the following drawbacks in terms of cleaning technology: Since the lower end of the valve core is directly exposed to the farming environment, saliva, feed residue, and other organic matter adhere to the outer wall of the valve core when poultry peck at it. During the reciprocating sliding process, these substances are carried into the inner cavity of the valve core, gradually forming a biofilm that blocks the water inlet and internal flow channels, affecting water output efficiency. Simultaneously, bacteria proliferate and contaminate the drinking water. Because the inner cavity of the valve core is isolated from the inner cavity of the water line pipe when normally closed, the cleaning water from existing water line cleaning devices cannot enter the valve core, and the contaminants inside the valve core cannot be removed by pipe flushing. To clean the inside of the valve core, the waterer must be manually disassembled and scrubbed piece by piece. However, the internal flow channels of the valve core are extremely narrow, making it difficult for conventional tools to reach in for effective cleaning. Furthermore, repeated disassembly and reassembly accelerate the wear and aging of the seals, leading to an increased rate of waterer leakage. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic water line cleaning system to solve the problems in the prior art, such as the risk of bacterial growth in drinking water caused by the inability to clean the inner cavity of the valve core of nipple-type water dispensers online, and the increased failure rate of water leakage caused by repeated disassembly and assembly of the valve core.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solution: including a water line pipe that is connected to the output port of a drinking water pumping device through a pipe, the water line pipe being erected in the breeding shed by several support frames, and several drinking water mechanisms for automatically supplying water to the livestock being fixedly installed on the water line pipe by flange structure; The drinking mechanism includes a valve body, a valve core, a limiting ring, a push-out spring, a mounting groove, and a water inlet. The valve body is a structure consisting of a cylindrical and a conical cylinder. The cylindrical structure is used to connect to the water line pipe, and the conical structure is used to install the valve core. The valve core is composed of an inner cylinder and an outer cylinder fixedly connected. The outer cylinder slides through the mounting hole of the conical cylinder. The mounting groove is provided in the middle of the side wall of the mounting hole of the conical cylinder. A limiting ring is fixedly connected to a section of the outer wall of the outer cylinder inside the mounting groove. A push-out spring is sleeved on a section of the outer cylinder between the limiting ring and the upper wall of the mounting groove. Radially distributed water inlets are provided through the upper side of the valve core. An internal cleaning component is also provided on the top of the valve core for cleaning the internal space of the inner cylinder of the valve core.

[0007] Preferably, the internal cleaning assembly includes a water inlet channel radially opened on the upper side of the valve core and bent toward the internal space of the inner cylinder. A pressure valve is fixedly installed in the water inlet channel. An installation cylinder is integrally fixedly connected to the upper end of the valve core. A top seat is slidably connected inside the installation cylinder. A movable rod is fixedly connected to the center of the top seat. The movable rod slides through the connecting wall between the installation cylinder and the inner cylinder and extends into the space of the inner cylinder. A piston is fixedly connected to the lower end of the movable rod. The piston is slidably connected in the inner cylinder.

[0008] Preferably, the water inlet channel is located above the water delivery hole, and when the valve core is in the electrically controlled upward movement state, the water delivery hole is not connected to the inner cavity of the water line pipe.

[0009] Preferably, sealing rings are installed on the periphery of the piston and the top of the mounting hole of the valve body.

[0010] Preferably, the outer cylinder and the inner cylinder are also provided with a drainage structure for draining clean water from the inner cylinder space. The drainage structure includes a drainage channel that is radially opened on the upper side of the inner cylinder and bends into its internal space. A vertical channel is opened in the side wall of the outer cylinder. The upper ends of the drainage channel and the vertical channel are connected. The lower end of the vertical channel is connected to an annular channel. Several oblique outlets that are equidistant from the circumference of the annular channel are connected to the outer side of the outer cylinder.

[0011] Preferably, the lower end of the conical structure is fixedly connected to an annular outer protective frame, and the lower end of the outer protective frame is provided with a flared mouth shape, with the oblique outlet pointing towards the flared mouth shape section of the outer protective frame.

[0012] Preferably, the angle between the inclined outlet axis and the generatrix of the trumpet-shaped segment is 20° to 40°.

[0013] Preferably, the lower ends of the drainage channel and the water inlet channel are at the same height.

[0014] Preferably, the conical structure is provided with a control structure for adjusting the extension state of the valve core. The control structure includes a second mounting groove on the lower side of the mounting hole sidewall, a permanent magnet ring is fixedly installed on the outer periphery of a section of the outer cylinder inside the second mounting groove, and an electromagnetic ring is fixedly installed at the bottom of the second mounting groove.

[0015] Preferably, the electromagnetic rings of all the water dispensers on the same water line pipeline are connected in parallel through the same control circuit. A time relay is connected in series on the control circuit to periodically control the energizing duration and interval of the electromagnetic ring. The time relay controls the electromagnetic ring to be energized and then delays for 0.5-2 seconds before starting the pressurization process of the drinking water pump.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: 1. This invention features a water inlet channel controlled by a pressure valve and a sliding piston driven by water pressure inside the valve core. The piston can be driven to scrape the inner wall by the pressure boosting of the water line itself, thus cleaning the inner cylinder without disassembling the water dispenser. This effectively avoids wear and leakage of seals caused by frequent disassembly and assembly.

[0017] 2. This invention uses a piston mechanical scraping method to remove the biofilm on the inner wall, eliminating the need for chemical disinfectants and avoiding chemical residues that contaminate drinking water, making it safer and more environmentally friendly.

[0018] 3. This invention uses the existing variable frequency booster pump in the farm as the power source. The cleaning and drinking water modes can be switched simply by adjusting the water pressure. There is no need to add a separate high-pressure water source or additional power equipment. The modification cost is low and the integration is high.

[0019] 4. In this invention, the outer sealing ring of the piston ensures that the water pressure is fully converted into mechanical scraping force, and the concave arc surface at the lower end of the piston effectively guides the pollutants to be discharged in a concentrated manner. After cleaning, the piston automatically resets, and the entire process is automated, with good cleaning effect and significantly reducing manual maintenance costs. Attached Figure Description

[0020] Figure 1 This is a three-dimensional connection structure diagram of the water line pipe and drinking water mechanism of the present invention; Figure 2 This is a cross-sectional perspective view of the drinking mechanism of the present invention. Figure 3 This is the present invention. Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 This is the present invention. Figure 2 A magnified structural diagram of region B in the middle; Figure 5 This is a top sectional view of the valve core of the present invention located in the annular channel position; Figure 6 This is a schematic diagram of the water outlet state of the drainage structure of the present invention; Figure 7 This is a cross-sectional structural diagram of the drinking mechanism of the present invention in its conventional state; Figure 8 This is a cross-sectional view of the drinking mechanism of the present invention in the state of livestock drinking water; Figure 9 This is a cross-sectional structural schematic diagram of the water intake stage in the cleaning process of the drinking water mechanism of the present invention; Figure 10 This is a cross-sectional structural diagram of the drainage stage in the cleaning process of the drinking water device of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Water line pipe; 2. Drinking water mechanism; 21. Valve body; 22. Valve core; 221. Limiting ring; 222. Outer cylinder; 223. Inner cylinder; 23. Ejection spring; 24. Mounting slot one; 25. Water inlet; 26. Inner cleaning component; 261. Top seat; 262. Movable rod; 263. Extrusion spring; 264. Mounting cylinder; 265. Piston; 266. Pressure valve; 267. Water inlet channel; 27. Drainage structure; 271. Vertical channel; 272. Drainage channel; 273. Slanted outlet; 274. Annular channel; 28. Control structure; 281. Mounting slot two; 282. Permanent magnet ring; 283. Electromagnetic ring; 29. ​​Outer protective frame. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0023] Example 1 In existing technologies, the valve core 22 of waterers used for livestock farming comes into direct contact with the livestock's mouth. Over time, a biofilm forms both inside and outside the valve core 22, affecting drainage efficiency and harming livestock health. Therefore, the valve core 22 is periodically removed for cleaning and maintenance. However, the valve core 22 has a unique structure with narrow internal channels, making it difficult for conventional cleaning tools to effectively clean the inner walls. Furthermore, frequent disassembly and reassembly accelerate the wear and aging of seals, leading to an increased rate of water leakage. Therefore, there is an urgent need for a technical solution that can automatically clean the inside of the valve core 22 without disassembling the waterer.

[0024] like Figures 1 to 10In this embodiment, a water line pipe 1 is connected to the output port of a drinking water pumping device via a pipe. The water line pipe 1 is erected in the breeding shed by several support frames. Several drinking water mechanisms 2 for automatically supplying water to the livestock are fixedly installed on the water line pipe 1 by a flange structure. The drinking mechanism 2 includes a valve body 21, a valve core 22, a limiting ring 221, a push-out spring 23, a mounting groove 24, and a water inlet 25. The valve body 21 is a structure consisting of a cylindrical and a conical cylinder. The cylindrical structure is used to connect to the water line pipe 1, and the conical structure is used to install the valve core 22. The valve core 22 is formed by a fixed connection between an inner cylinder 223 and an outer cylinder 222. The outer cylinder 222 slides through the mounting hole of the conical structure. The mounting groove 24 is provided in the middle of the side wall of the mounting hole of the conical structure. A limiting ring 221 is fixedly connected to a section of the outer wall of the outer cylinder 222 inside the mounting groove 24. A push-out spring 23 is sleeved on a section of the outer cylinder 222 between the limiting ring 221 and the upper wall of the mounting groove 24. A radially distributed water inlet 25 is provided through the upper side of the valve core 22. An inner cleaning component 26 is also provided on the top of the valve core 22 for cleaning the internal space of the inner cylinder 223 of the valve core 22.

[0025] Working principle: The push-out spring 23 is used to press the valve core 22 downward to keep it in the normal closed state and prevent water in the water line pipe 1 from leaking when the livestock are not drinking. The upper side of the valve core 22 has radially distributed water inlets 25. When drinking, the livestock's mouth pushes up the lower end of the valve core 22, and the valve core 22 slides upward as a whole. The water inlets 25 enter the inner cavity area of ​​the water line pipe 1. The water in the water line pipe 1 flows into the inner cylinder 223 of the valve core 22 through the water inlets 25, and then flows out through the lower end of the valve core 22 for the livestock to drink.

[0026] The internal cleaning component 26 includes a water inlet channel 267 radially opened on the upper side of the valve core 22 and bent towards the internal space of the inner cylinder 223. A pressure valve 266 is fixedly installed in the water inlet channel 267 (when the cleaning period begins, the water pressure is increased in advance by a drinking water pump. After the water pressure exceeds the preset threshold of the pressure valve 266, water will flow from the water inlet channel 267 into the space of the inner cylinder 223). An installation cylinder 264 is integrally fixedly connected to the upper end of the valve core 22. A top seat 261 is slidably connected inside the installation cylinder 264. A movable rod 262 is fixedly connected to the center of the top seat 261. The movable rod 262 slides through the connecting wall between the installation cylinder 264 and the inner cylinder 223 and extends into the space of the inner cylinder 223. A piston 265 is fixedly connected to the lower end of the movable rod 262. The piston 265 is slidably connected in the inner cylinder 223. An extrusion spring 263 is sleeved on the section of the movable rod 262 between the top seat 261 and the connecting wall.

[0027] Working principle: When the system enters the cleaning mode, the drinking water pumping equipment increases the water pressure in the water line pipe 1 from the daily drinking water pressure to the cleaning pressure. The high-pressure water reaches the pressure valve 266 through the inlet channel 267. When the water pressure exceeds the preset opening threshold of the pressure valve 266, the pressure valve 266 opens, and the high-pressure water enters the installation cylinder 264 along the inlet channel 267. The high-pressure water acts on the piston 265, and the piston 265 moves downward. During the downward movement of the piston 265 inside the inner cylinder 223, its lower end face forms a sliding scraping with the inner wall of the inner cylinder 223, physically scraping away the biomass film, scale and other pollutants attached to the inner wall of the inner cylinder 223. After cleaning is completed, the system is depressurized, and the water pressure in the inlet channel 267 drops below the closing threshold of the pressure valve 266. The pressure valve 266 closes, and the top seat 261 and piston 265 return to their original positions under the action of the extrusion spring 263, waiting for the next cleaning cycle.

[0028] It should be emphasized that the core improvement of this embodiment lies in the following: a water inlet channel 267 controlled by a pressure valve 266 and a sliding piston 265 driven by water pressure are set inside the valve core 22. The pressurization capacity of the aquaculture farm's water line itself is used as a power source to convert water pressure energy into the mechanical scraping motion of the piston 265, thereby achieving self-cleaning of the biofilm on the inner wall of the valve core 22's inner cylinder 223. Compared with the existing technology that relies on manual disassembly or chemical soaking, this solution does not require disassembly of the waterer or additional power equipment. The inner cylinder 223 can be automatically cleaned simply by adjusting the existing water pressure, which significantly reduces the maintenance frequency and labor intensity, while avoiding damage to the seals caused by frequent disassembly and assembly.

[0029] It should be noted that when the water inlet channel 267 is located above the water inlet hole 25 and the valve core 22 is in the electrically controlled upward position, the water inlet hole 25 is not connected to the inner cavity of the water line pipe 1. In cleaning mode, high-pressure water will not leak from the water inlet hole 25 to the water line pipe 1, ensuring that all cleaning water flows into the inner cylinder 223 space through the pressure valve 266, ensuring that the piston 265 receives sufficient driving water pressure and flow, and avoiding insufficient driving force of the piston 265 due to flow diversion.

[0030] It should be noted that sealing rings are installed on the periphery of the piston 265 and the top of the mounting hole of the valve body 21.

[0031] Working principle: The sealing ring around the piston 265 is used to maintain the seal between the piston 265 and the inner wall of the inner cylinder 223 during the sliding process, preventing high-pressure water from bypassing and leaking from the gap between the piston 265 and the inner wall of the inner cylinder 223, and ensuring that the water pressure can effectively push the piston 265 downward. The sealing ring at the top of the mounting hole of the valve body 21 is used to prevent water in the water line pipe 1 from leaking upward along the outer wall of the valve core 22 to the outside of the valve body 21 when the valve core 22 is normally closed, ensuring the sealing reliability of the water dispenser in non-cleaning mode.

[0032] In this embodiment, the drinking water pumping device is preferably a variable frequency booster pump, whose output pressure can be adjusted according to the cleaning mode and the daily drinking water mode, without the need to add an independent high-pressure water source, making full use of the existing water supply infrastructure of the farm.

[0033] In this embodiment, the lower end face of the piston 265 can be configured as a concave arc-shaped surface. When the piston 265 descends to the bottom of the inner cylinder 223, an annular compression space is formed between the arc-shaped surface and the bottom of the inner cylinder 223. This helps to concentrate and guide the scraped-off pollutants to the outlet at the bottom of the inner cylinder 223 for discharge, thus preventing pollutants from accumulating and remaining in the dead corner between the lower end face of the piston 265 and the bottom of the inner cylinder 223.

[0034] Example 2 In Embodiment 1, the pressure valve 266 has a one-way conduction characteristic. After cleaning, the system is depressurized and the pressure valve 266 returns to the closed state. The clean water that has entered the inner cylinder 223 cannot be discharged in reverse along the water inlet channel 267. At the same time, the water line pipe 1 always maintains a positive pressure. This pressure acts on the water inlet 25 outside the valve core 22. Even if the water inlet 25 is connected to the inner cylinder 223, the water in the inner cylinder 223 cannot overcome the internal pressure of the pipe and be discharged in reverse from the water inlet 25. If the water in the inner cylinder 223 cannot be discharged in time, on the one hand, when the piston 265 cleans next time, the old water accumulated at the bottom of the inner cylinder 223 will occupy the space of the inner cylinder 223, and the piston 265 cannot move, so continuous and effective cleaning cannot be achieved; on the other hand, the accumulated clean water will breed bacteria and form secondary biofilm pollution in a long-term static state, which will aggravate the drinking water hygiene hazards.

[0035] like Figures 3 to 10 To solve the above problems, the outer cylinder 222 and the inner cylinder 223 are also provided with a drainage structure 27 for draining clean water from the space of the inner cylinder 223. The drainage structure 27 includes a drainage channel 272 that is radially opened on the upper side of the inner cylinder 223 and bends into its internal space. A vertical channel 271 is opened in the side wall of the outer cylinder 222. The upper ends of the drainage channel 272 and the vertical channel 271 are connected. The lower end of the vertical channel 271 is connected to an annular channel 274. A number of oblique outlets 273 that are equidistant from the outer side of the outer cylinder 222 are connected to the annular channel 274.

[0036] The lower end of the conical structure is fixedly connected to an annular outer protective frame 29. The lower end of the outer protective frame 29 is provided with a flared mouth shape, and the oblique outlet 273 points to the flared mouth section of the outer protective frame 29 (the outer protective frame 29 can not only protect the oblique outlet 273, but also reflect the water sprayed from the oblique outlet 273 through the structure of the flared mouth section, and deflect it toward the lower outer wall of the valve core 22, thereby achieving an automatic cleaning effect on the outside of the valve core 22).

[0037] Working principle: When the piston 265 is pushed down to the bottom of the inner cylinder 223 by the high-pressure water, the clean water squeezed out by the piston 265 in the inner cylinder 223 flows into the vertical channel 271 through the drainage channel 272, and then is distributed to each inclined outlet 273 through the annular channel 274. Since the inclined outlet 273 points to the inner wall of the trumpet-shaped section of the outer guard 29, the water with a certain pressure sprays out from the inclined outlet 273 and hits the smooth curved surface of the trumpet-shaped section. Under the guidance of the curved surface, the water flow direction changes from oblique spray to flowing downward along the lower outer wall surface of the valve core 22, thereby flushing and cleaning the lower exterior of the valve core 22. In this process, the drainage water flow completes the two tasks of internal sewage discharge and external rinsing at the same time. The outer guard 29 also plays a protective role, preventing the livestock's mouth from directly contacting the inclined outlet 273 and causing blockage or damage, and also preventing feed residue and other foreign objects from blocking the inclined outlet 273 from the outside.

[0038] It should be emphasized that the core improvement of this embodiment lies in the following: by utilizing the built-in drainage channel formed by the drainage channel 272, vertical channel 271, annular channel 274 and inclined outlet 273, the clean water that has been scraped in the inner cylinder 223 is guided to the lower end of the valve core 22. The high-speed water flow is reflected and guided by the flared section of the outer guard 29, so that the drainage water flows out of the inner cylinder 223 and at the same time serves as the rinsing medium for the outer wall of the valve core 22, realizing the dual use of water. This design does not require additional rinsing water source or nozzle structure, and integrates the dual functions of internal sewage discharge and external cleaning within the limited installation space of the water dispenser. It has a compact structure and low cost.

[0039] It should be noted that the angle between the axis of the inclined outlet 273 and the generatrix of the funnel-shaped section is 20° to 40°. This angle range has been verified by fluid simulation, which allows the jet water to form an effective reflection angle after impacting the inner wall of the funnel-shaped section. This prevents the water from flowing back along the wall to the inclined outlet 273 due to an angle that is too small, thus avoiding energy loss and the risk of flow channel blockage. Conversely, it also prevents the water from splashing and dispersing due to an angle that fails to concentrate on scouring the lower outer wall of the valve core 22. This ensures that the scouring force of the drainage water is fully utilized.

[0040] It should be noted that the lower ends of the drainage channel 272 and the water inlet channel 267 are at the same height. The purpose of this design is to achieve structural compactness and to ensure that accumulated water is discharged when the piston 265 moves to the top, preventing it from flowing into the space of the inner cylinder 223.

[0041] In this embodiment, the annular channel 274 is formed in the circumferential groove on the lower outer wall of the outer cylinder 222. The number of oblique outlets 273 is 4 to 8, which are evenly distributed along the circumference of the annular channel 274 to ensure that all parts of the lower outer wall of the valve core 22 can be evenly rinsed by clean water, avoiding local dirt residue due to uneven rinsing. The cross-sectional shape of the drainage channel 272 is preferably circular with a diameter of 0.5 mm to 1.0 mm, which ensures sufficient drainage flow and avoids the reduction of the structural strength of the valve core 22 due to the flow channel being too thick. At the same time, the small flow channel helps to increase the drainage flow rate and enhance the rinsing effect.

[0042] In this embodiment, in order to prevent the drainage channel 272 from becoming clogged due to scale or biofilm buildup during long-term use, the inner wall of the drainage channel 272 can be coated with a hydrophilic lubricating coating to reduce the tendency of pollutants to adhere to the inner wall of the channel. At the same time, when the high-speed water flow passes through the drainage channel 272 in each cleaning mode, it itself forms a flushing effect on the inner wall of the channel, which has a certain self-cleaning effect and further reduces the risk of clogging.

[0043] Example 3 It is understandable that in Embodiment 2, although the drainage channel 272 and the water inlet channel 267 need to be in the open and closed states respectively in terms of working sequence, their height positions on the valve core 22 are similar, and the drainage channel 272 is in the normally open state before the cleaning mode is started. When the system is pressurized, the pressure valve 266 is opened, and high-pressure water enters the inner cylinder 223 through the water inlet channel 267, since the drainage channel 272 is still in the open state, the high-pressure water will directly leak out from the drainage channel 272 through the vertical channel 271 and the inclined outlet 273, instead of forming an effective water pressure above the piston 265 to push the piston 265 downward, causing the cleaning function of the inner cylinder 223 to fail.

[0044] like Figure 2 , Figures 7 to 10 As shown, in order to solve the above problems, the conical structure is provided with a control structure 28 for adjusting the extension state of the valve core 22. The control structure 28 includes a second mounting groove 281 opened on the lower side of the mounting hole sidewall. A permanent magnet ring 282 is fixedly installed on the outer periphery of a section of the outer cylinder 222 inside the second mounting groove 281. An electromagnetic ring 283 is fixedly installed at the bottom of the second mounting groove 281 (by energizing the electromagnetic ring 283, a force is generated that repels the permanent magnet ring 282, causing the valve core 22 to move upward, thereby blocking the oblique outlet 273).

[0045] The electromagnetic rings 283 of all the water dispensers on the same water line pipe 1 are connected in parallel through the same control circuit. A time relay (not shown in the figure, which is conventional prior art) is connected in series on the control circuit to periodically control the energizing duration and interval of the electromagnetic rings 283. After the electromagnetic rings 283 are energized, the time relay delays for 0.5-2 seconds before starting the pressurization process of the drinking water pump (the cleaning process and the drinking water use process are not in the same time period).

[0046] Working principle: When the system needs to enter the cleaning mode, the time relay first controls the electromagnetic ring 283 to be energized. After the electromagnetic ring 283 is energized, it generates a magnetic field with the same polarity as the permanent magnet ring 282. The two generate a repulsive magnetic force, which overcomes the elastic force of the push spring 23 and pushes the valve core 22 to slide upward. The upward movement of the valve core 22 causes the inclined outlet 273 to enter the shielded area of ​​the inner wall of the cone structure mounting hole. The inclined outlet 273 is blocked, and the passage between the drainage channel 272 and the outside is cut off. At this time, the high-pressure water cannot be discharged from the drainage channel 272 and can only enter the mounting cylinder through the water inlet channel 267 and the pressure valve 266. 264 pushes piston 265 downward to complete the scraping and cleaning of the inner cylinder 223 of valve core 22. After cleaning, time relay controls electromagnetic ring 283 to de-energize, the repulsive force between electromagnetic ring 283 and permanent magnet ring 282 disappears, valve core 22 resets downward under the elastic force of ejection spring 23, oblique outlet 273 re-exposes, drainage channel 272 resumes conduction, piston 265 moves upward under the action of extrusion spring 263, and the cleaning water in inner cylinder 223 can be discharged through drainage channel 272, vertical channel 271, annular channel 274 and oblique outlet 273 to rinse the lower outer wall of valve core 22, completing the entire cleaning cycle.

[0047] It should be emphasized that the core improvement of this embodiment lies in the following: the controllable magnetic force between the electromagnetic ring 283 and the permanent magnet ring 282 drives the overall axial displacement of the valve core 22. By moving the valve core 22 upward, the inclined outlet 273 is blocked by the inner wall of the mounting hole of the conical structure, thus temporarily closing the drainage channel 272 during the cleaning and water intake stage. After cleaning is completed, the valve core 22 is reset and automatically released from the blockage. This solution achieves the time-controlled opening and closing of the drainage channel 272 by utilizing the displacement of the valve core 22 itself without adding any additional valve components. The structure is compact and the response is rapid. Furthermore, all water dispensers on the same water line are driven uniformly through parallel control circuits, eliminating the need for individual control.

[0048] It should be noted that the pressurization process is started 0.5-2 seconds after the electromagnetic ring 283 is energized. This is to ensure that the valve core 22 has enough time to complete its upward movement and that the inclined outlet 273 is completely blocked before the high-pressure water begins to enter the system. If pressurization and energization are carried out simultaneously or if pressurization is completed before energization, the high-pressure water may leak out from the not-completely-closed inclined outlet 273 before the valve core 22 has completely moved upward, resulting in cleaning failure. This delay time can be adjusted according to the stroke of the valve core 22 and the electromagnetic force response speed, and is preferably 1 second.

[0049] It should be noted that the cleaning process and the water usage process are not carried out at the same time. The cleaning mode is usually set at night or during the time when the livestock are resting together, such as from 2:00 to 2:10 a.m. every day. It is automatically started by a time relay. At this time, the livestock do not drink water. Even if the valve core 22 moves up and causes the water inlet 25 to be temporarily closed, it will not affect the normal drinking needs of the livestock. At the same time, the small amount of water dripping from the drainage to rinse the outside of the valve core 22 after nighttime cleaning will stop before the livestock are active during the day and will not have an adverse effect on the breeding environment.

[0050] In this embodiment, the permanent magnet ring 282 is preferably made of neodymium iron boron, which has a high magnetic energy product and can provide sufficient magnetic force in a small volume, making it suitable for the compact installation space of the water dispenser. The electromagnetic ring 283 is preferably powered by DC low voltage to ensure electrical safety in the breeding farm environment and avoid the risk of high voltage electric shock. The depth of the installation slot 281 should ensure that the electromagnetic ring 283 does not come into contact with the permanent magnet ring 282 when the power is off, to prevent the permanent magnet ring 282 from demagnetizing due to long-term contact.

[0051] In this embodiment, the time relay can be a digital programmable timer, which supports multiple time period settings. The breeder can flexibly adjust the cleaning cycle and duration according to actual needs. The preferred cleaning cycle is once every 24 hours. During each cleaning process, the electromagnetic ring 283 is energized for 3 to 10 minutes, which is sufficient to complete the entire process of piston 265 scraping and drainage rinsing. The cleaning frequency and duration can be adjusted according to factors such as breeding density, waterer usage frequency and water hardness. For example, the cleaning frequency can be appropriately increased in the hot summer season and appropriately reduced in the winter season.

[0052] It is understood that the technical features in the above embodiments can be combined arbitrarily without contradicting each other. For example, the internal cleaning component 26 structure in Embodiment 1 can be combined with the drainage structure 27 in Embodiment 2 and the control structure 28 in Embodiment 3 to form a complete self-cleaning system for a water dispenser with the functions of scraping and cleaning the inner cylinder 223, draining and guiding external rinsing, and displacing and sealing the solenoid valve core 22. Alternatively, the technical solution of Embodiment 1 can be used alone in scenarios where only the inner cylinder 223 needs cleaning, or the technical solutions of Embodiment 2 and Embodiment 3 can be combined in scenarios where only external rinsing is required. Farms can flexibly select the appropriate combination of cleaning functions based on actual water quality conditions, stocking density, and equipment costs.

[0053] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. An automatic waterline cleaning system, comprising a waterline pipe (1) connected to the output port of a drinking water pumping device via a pipeline, the waterline pipe (1) being erected inside a livestock farm shed via several support frames, characterized in that, Several drinking water devices (2) for automatically supplying water to livestock are fixedly installed on the water line pipe (1) through a flange structure. The drinking mechanism (2) includes a valve body (21), a valve core (22), a limiting ring (221), a push-out spring (23), a mounting groove (24), and a water inlet (25). The valve body (21) is a structure consisting of a cylindrical and a conical cylinder. The cylindrical structure is used to connect with the water line pipe (1), and the conical structure is used to install the valve core (22). The valve core (22) is formed by a fixed connection between an inner cylinder (223) and an outer cylinder (222). The outer cylinder (222) slides through the mounting hole of the conical structure. The side wall of the mounting hole of the conical structure is in... The outer cylinder (222) has an installation groove (24) and a fixed connection of a limiting ring (221) to a section of the outer wall of the outer cylinder (222) inside the installation groove (24). A push-out spring (23) is sleeved on a section of the outer cylinder (222) between the limiting ring (221) and the upper wall of the installation groove (24). A radially distributed water inlet hole (25) is opened through the upper side of the valve core (22). An internal cleaning component (26) is also provided on the top of the valve core (22) for cleaning the internal space of the inner cylinder (223) of the valve core (22).

2. The automatic waterline cleaning system as described in claim 1, characterized in that, The internal cleaning component (26) includes a water inlet channel (267) that is radially opened on the upper side of the valve core (22) and bent toward the internal space of the inner cylinder (223). A pressure valve (266) is fixedly installed in the water inlet channel (267). An installation cylinder (264) is integrally fixedly connected to the upper end of the valve core (22). A top seat (261) is slidably connected inside the installation cylinder (264). A movable rod (262) is fixedly connected to the center of the top seat (261). The movable rod (262) slides through the connecting wall of the installation cylinder (264) and the inner cylinder (223) and extends into the space of the inner cylinder (223). A piston (265) is fixedly connected to the lower end of the movable rod (262). The piston (265) is slidably connected in the inner cylinder (223).

3. The automatic waterline cleaning system as described in claim 2, characterized in that, The water inlet channel (267) is located above the water delivery hole (25). When the valve core (22) is in the electrically controlled upward movement state, the water delivery hole (25) is not connected to the inner cavity of the water line pipe (1).

4. The automatic waterline cleaning system as described in claim 2, characterized in that, A sealing ring is installed on the periphery of the piston (265) and on the top of the mounting hole of the valve body (21).

5. The automatic waterline cleaning system as described in claim 2, characterized in that, The outer cylinder (222) and the inner cylinder (223) are also provided with a drainage structure (27) for draining clean water from the space of the inner cylinder (223). The drainage structure (27) includes a drainage channel (272) that is radially opened on the upper side of the inner cylinder (223) and bends into its internal space. A vertical channel (271) is opened in the side wall of the outer cylinder (222). The upper ends of the drainage channel (272) and the vertical channel (271) are connected. The lower end of the vertical channel (271) is connected to an annular channel (274). Several oblique outlets (273) that are equidistant from the outer side of the outer cylinder (222) are connected to the annular channel (274).

6. The automatic waterline cleaning system as described in claim 1, characterized in that, The lower end of the cone structure is fixedly connected to an annular outer protective frame (29). The lower end of the outer protective frame (29) is provided with a flared mouth shape, and the oblique outlet (273) points to the flared mouth shape of the outer protective frame (29).

7. The automatic waterline cleaning system as described in claim 6, characterized in that, The angle between the axis of the inclined outlet (273) and the generatrix of the trumpet-shaped segment is 20° to 40°.

8. The automatic waterline cleaning system as described in claim 5, characterized in that, The lower ends of the drainage channel (272) and the water inlet channel (267) are at the same height.

9. The automatic waterline cleaning system as described in claim 1, characterized in that, The conical structure is provided with a control structure (28) for adjusting the extension state of the valve core (22). The control structure (28) includes a second mounting groove (281) opened on the lower side of the mounting hole sidewall. A permanent magnet ring (282) is fixedly installed on the outer periphery of a section of the outer cylinder (222) inside the second mounting groove (281). An electromagnetic ring (283) is fixedly installed at the bottom of the second mounting groove (281).

10. The automatic waterline cleaning system as described in claim 1, characterized in that, The electromagnetic rings (283) of all the water dispensers on the same water line pipe (1) are connected in parallel through the same control line. A time relay is connected in series on the control line to periodically control the energizing time and interval of the electromagnetic ring (283). The time relay controls the electromagnetic ring (283) to be energized and then delays for 0.5-2 seconds before starting the pressurization process of the drinking water pumping equipment.

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