CN119660848A - Water saving fixtures suitable for closed water system - Google Patents
Water saving fixtures suitable for closed water system Download PDFInfo
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- CN119660848A CN119660848A CN202411970564.8A CN202411970564A CN119660848A CN 119660848 A CN119660848 A CN 119660848A CN 202411970564 A CN202411970564 A CN 202411970564A CN 119660848 A CN119660848 A CN 119660848A
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Abstract
The application relates to the technical field of water saving devices and discloses a water saving device suitable for a closed water system, which comprises a filter vat, wherein a top cover is arranged on the upper surface of the filter vat, a water inlet pipe is fixedly connected to one side of the outer wall of the filter vat, a filter assembly is installed on the inner wall of the filter vat, a rotating shaft seat is rotatably connected to the bottom of the inner wall of the filter vat, a scraping plate is fixedly connected to one side of the outer wall of the rotating shaft seat, a water outlet pipe is fixedly connected to one side of the outer wall of the filter vat, a sewage drain pipe is fixedly connected to the bottom of the filter vat, and a cleaning assembly is installed on the upper surface of the top cover. Through sewage entering filter vat through the inlet tube, flow to the outlet pipe after filtering by the cartridge filter, the motor is driven the epaxial U-shaped frame of axis of rotation and is rotated, and the cleaning brush clearance cartridge filter inner wall is convenient for maintain, and pipeline one carries clear water to transmission section of thick bamboo backwash cartridge filter, realizes high-efficient clean sewage, has solved the big difficult problem of conventional art multiple operation water consumption, has promoted water conservation efficiency.
Description
Technical Field
The invention relates to the technical field of water saving devices, in particular to a water saving device suitable for a closed water system.
Background
Along with the acceleration of the industrialization progress, various types of closed water systems are widely applied to the fields of industrial production, building refrigeration and the like. These systems typically use chilled water in liquid form as a medium, and long term operation can result in the accumulation of significant amounts of rust, silt and other impurities therein, which not only affects the heat exchange efficiency of the system, but can also lead to corrosion and even blockage of the piping. Therefore, how to effectively clean dirt in a closed water system is one of the important subjects in this field.
The current common cleaning method is to add specific cleaning agent into the water system, promote the agent to fully contact with dirt in the system through a circulating pump, and then drain the sewage with impurities by using a drain pipe. Although this method can remove dirt in the system to some extent, it also has significant drawbacks, such as loss of large amounts of clean water and additional chemical inputs, which increase the operating costs of the enterprise. Furthermore, frequent discharge of untreated wastewater into the environment may also carry the risk of environmental pollution.
The existing cleaning method relies on a mode of combining physical emptying and chemical agents, so that the water consumption is huge, secondary pollution is easily caused by improper selection and dosage of the chemical agents, and the method is extremely unfavorable for environmental protection. More importantly, the method does not fundamentally solve the problem of internal pollution of the closed water system, only temporarily relieves symptoms, and needs to be operated repeatedly in a regular period in the long term, so that the economic benefit is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a water-saving device suitable for a closed water system, and solves the problems that the water consumption is huge, and secondary pollution is easily caused by improper selection and dosage of chemical agents in the prior art by combining physical emptying and chemical agents.
The water saving device suitable for the closed water system comprises a filter vat, wherein the upper surface of the filter vat is provided with a top cover, one side of the outer wall of the filter vat is fixedly connected with a water inlet pipe, the inner wall of the filter vat is provided with a filter assembly, the bottom of the inner wall of the filter vat is rotationally connected with a rotating shaft seat, one side of the outer wall of the rotating shaft seat is fixedly connected with a scraping plate, one side of the outer wall of the filter vat is fixedly connected with a water outlet pipe, the bottom of the filter vat is fixedly connected with a sewage drain pipe, and the upper surface of the top cover is provided with a cleaning assembly;
The cleaning assembly comprises a first fixed cylinder, a lower surface of the fixed cylinder is fixedly connected with the upper surface of the top cover, a support is fixedly connected with the outer wall of the fixed cylinder, a first motor is fixedly connected with the inner wall of the support, an output end of the motor is fixedly connected with a rotating shaft, one end of the rotating shaft is slidably connected with the inside of a rotating shaft seat, the outer wall of the rotating shaft is fixedly connected with a U-shaped frame, the inner wall of the U-shaped frame is slidably connected with a spring, one end of the spring is fixedly connected with a limiting plate, one side of the outer wall of the limiting plate is fixedly connected with a cleaning brush, the outer wall of the cleaning brush is slidably connected with the inner wall of the filter cylinder, and the inner part of the fixed cylinder is internally provided with a flushing assembly.
Preferably, the flushing assembly comprises a transmission cylinder, the outer wall of the transmission cylinder is rotationally connected inside a fixed cylinder, the transmission cylinder is sleeved on the outer wall of the rotating shaft, one side of the outer wall of the transmission cylinder is fixedly connected with a sealing ring, a transmission hole is formed in the transmission cylinder in a penetrating mode, the outer wall of the transmission cylinder is fixedly connected with a plurality of drain pipes, one side of the outer wall of the fixed cylinder is fixedly connected with a first pipeline, the upper surface of the top cover is provided with a driving assembly, one side of the outer wall of the fixed cylinder is fixedly connected with a second pipeline, and one end of the second pipeline is fixedly connected with the second fixed cylinder.
Preferably, the filter component comprises a fixed plate, the outer wall of the fixed plate is fixedly connected with the inner wall of the filter barrel, the outer wall of the fixed plate is slidably connected with a filter cartridge, and the upper surface of the filter cartridge is rotationally connected with a handle.
Preferably, the driving assembly comprises a motor II, the lower surface of the motor II is fixedly connected with the upper surface of the top cover, the output end of the motor II is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is fixedly connected with a half gear, and a belt is connected between the transmission shaft and the transmission barrel in a transmission manner.
Preferably, the piston assembly is arranged in the second fixing cylinder, one side of the outer wall of the second fixing cylinder is fixedly connected with a third pipeline, and valves are fixedly connected to the outer walls of the first pipeline, the second pipeline and the third pipeline.
Preferably, the piston assembly comprises a limiting rod, the upper surface of the limiting rod is fixedly connected with a fixed block, the lower surface of the fixed block is rotationally connected with a reciprocating screw rod, the outer wall of the reciprocating screw rod is in threaded connection with a motor II, the outer wall of the reciprocating screw rod is in threaded connection with a piston plate, the outer wall of the reciprocating screw rod is fixedly connected with a spur gear, and the spur gear is in meshed connection with the half gear.
Preferably, the limiting plate outer wall sliding connection is at U-shaped frame inner wall, the limiting plate is used for spacing the motion of cleaning brush.
Preferably, the outer wall of the sealing ring is rotatably connected to the inner wall of the fixed cylinder, and the drain pipe is used for sealing and preventing liquid leakage.
Preferably, the outer wall of the reciprocating screw rod penetrates through the inside of the second fixed cylinder, and the reciprocating screw rod is used for driving the piston plate to reciprocate.
Preferably, the inner wall of the piston plate is slidably connected to the outer wall of the limiting rod, and the limiting rod is used for limiting the running of the piston plate.
Working principle: when the water saving device is needed to be used, at this moment, through being connected to the water inlet pipe with sewage pipeline, this moment, sewage gets into the cartridge filter inside, this moment, through the cartridge filter to carry out filtration transmission to outlet pipe one side, this moment can discharge the clean water through the outlet pipe and use, simultaneously when a large amount of impurity is attached to the cartridge filter inner wall, this moment, through passing through the chemical agent through three transmission to inside of a fixed section of thick bamboo, this moment, let through the first transmission of clean water to inside of a fixed section of thick bamboo through the pipeline, this moment, through starter motor one, this moment, drive the axis of rotation through motor one and rotate, and then drive U-shaped frame and rotate, at this moment, through the rotation of fixed plate, and then drive the effect of rotating shaft seat outer wall scraper blade and U-shaped frame synchronous rotation, at this moment, through the rotation of U-shaped frame, and then realize the effect of cleaning brush to the cartridge filter inner wall through the rotation of drive, this moment, and then realize the pressure of cleaning brush is advanced into to the effect of cleaning brush through the flexible spring, thereby improving the life of cleaning brush, at this moment, and then through the starter motor two, this moment, through the rotation of motor two moment, and then drive the belt of transmission outer wall of transmission shaft rotates, and then drive transmission shaft belt rotates through the transmission drum through the rotation, and drive the transmission piston drum rotates through the rotation, and then drive the reciprocating effect of the inside of the gear, and then drive the transmission effect of the reciprocating piston drum through the transmission through the gear, and the inside, and the reciprocating transmission effect is realized through the inside, and the transmission through the reciprocating through the transmission drum, and the reciprocating transmission drum, and through the reciprocating transmission filter, and then realized carrying out abluent effect to cartridge filter inner wall, through opening the valve of blow off pipe outer wall this moment, and then realized the effect of blowdown, through opening the top cap this moment, rethread pulling handle this moment to realized carrying out the effect of changing to the cartridge filter.
The invention provides a water saving device suitable for a closed water system. The beneficial effects are as follows:
1. According to the invention, sewage is transmitted through the water inlet pipe and enters the filter barrel, the sewage is filtered through the filter barrel and then is transmitted to the vicinity of the water outlet pipe, meanwhile, the U-shaped frame on the outer wall of the rotating shaft is driven by the motor to rotate, so that the cleaning brush is driven to clean the inner wall of the filter barrel, the effect of conveniently cleaning the filter barrel is realized, meanwhile, the effect of backwashing the filter barrel is realized after the clear water is transmitted through the first fixed barrel to the inside of the transmission barrel through the first pipeline, the effect of efficiently cleaning the sewage is realized, and the problem that the water consumption is large due to the need of multiple operations in the prior art is solved.
2. According to the invention, the belt on the outer wall of the transmission shaft is driven to synchronously rotate by the motor II, so that the effect of driving the transmission barrel to reversely rotate on the outer wall of the rotation shaft is realized, the effect of impacting inside the filter cartridge after the purified water in the first fixed barrel is transmitted to the drain pipe through the transmission hole is realized, the effect of efficiently cleaning the filter cartridge is realized, meanwhile, the valve on the outer wall of the drain pipe is opened, the effect of efficiently draining is realized, the rotation shaft is separated from the inside of the rotation shaft seat by opening the top cover, and the effect of rapidly replacing, disassembling and washing the filter cartridge is realized by lifting and pulling the lifting handle after the top cover is disassembled.
2. The invention drives the half gear to rotate in meshed mode with the spur gear through the rotation of the transmission shaft, and further drives the reciprocating screw rod to rotate in the first fixed cylinder, so that the effect of driving the piston plate to slide in a limiting manner on the outer wall of the limiting rod is achieved, and at the moment, the chemical agent is transmitted into the second fixed cylinder through the third pipeline, so that the effect of efficient filtration in cooperation with the transmission of purified water into the filter barrel is achieved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of a portion of a stationary barrel according to the present invention;
FIG. 3 is a schematic view of a portion of a fixing plate according to the present invention;
FIG. 4 is a schematic view of a drain pipe portion according to the present invention;
FIG. 5 is a schematic view of a portion of a rotating shaft according to the present invention;
FIG. 6 is a schematic view of a portion of a filter cartridge according to the present invention;
fig. 7 is a partial enlarged view of a in fig. 5.
Wherein, 1, a filter barrel, 2, a top cover, 3, a water inlet pipe, 4, a fixing plate, 5, a filter cartridge, 6, a handle, 7, a water outlet pipe, 8, a drain pipe, 9, a rotating shaft seat, 10, a scraping plate, 11, a fixing cylinder I, 12, a bracket, 13, a motor I, 14, a rotating shaft, 15, a U-shaped bracket, 16, a spring, 17, a limiting plate, 18, a cleaning brush, 19, a transmission cylinder, 20, a sealing ring, 21, a transmission hole, 22, a drain pipe, 23, a pipeline I, 24, a valve, 25, a motor II, 26, a transmission shaft, 27, a belt, 28, a pipeline II, 29, a fixing cylinder II, 30, a pipeline III, 31, a limiting rod, 32, a fixing block, 33, a half gear, 34, a reciprocating screw rod, 35, a piston plate, 36 and a spur gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, an embodiment of the invention provides a water saving device suitable for a closed water system, which comprises a filter vat 1, wherein a top cover 2 is arranged on the upper surface of the filter vat 1, a water inlet pipe 3 is fixedly connected to one side of the outer wall of the filter vat 1, a filter assembly is arranged on the inner wall of the filter vat 1, a rotating shaft seat 9 is rotatably connected to the bottom of the inner wall of the filter vat 1, a scraping plate 10 is fixedly connected to one side of the outer wall of the rotating shaft seat 9, a water outlet pipe 7 is fixedly connected to one side of the outer wall of the filter vat 1, a sewage drain pipe 8 is fixedly connected to the bottom of the filter vat 1, and a cleaning assembly is arranged on the upper surface of the top cover 2;
The cleaning assembly comprises a first fixed cylinder 11, the lower surface of the first fixed cylinder 11 is fixedly connected to the upper surface of the top cover 2, the outer wall of the first fixed cylinder 11 is fixedly connected with a bracket 12, the inner wall of the bracket 12 is fixedly connected with a first motor 13, the output end of the first motor 13 is fixedly connected with a rotating shaft 14, one end of the rotating shaft 14 is slidably connected inside a rotating shaft seat 9, the outer wall of the rotating shaft 14 is fixedly connected with a U-shaped frame 15, the inner wall of the U-shaped frame 15 is slidably connected with a spring 16, one end of the spring 16 is fixedly connected with a limiting plate 17, one side of the outer wall of the limiting plate 17 is fixedly connected with a cleaning brush 18, the outer wall of the cleaning brush 18 is slidably connected to the inner wall of the filter cartridge 5, and a flushing assembly is arranged inside the first fixed cylinder 11; the flushing assembly comprises a transmission cylinder 19, the outer wall of the transmission cylinder 19 is rotatably connected inside a fixed cylinder I11, the transmission cylinder 19 is sleeved on the outer wall of a rotating shaft 14, a sealing ring 20 is fixedly connected to one side of the outer wall of the transmission cylinder 19, a transmission hole 21 is formed in the transmission cylinder 19 in a penetrating mode, a plurality of drain pipes 22 are fixedly connected to the outer wall of the transmission cylinder 19, a first pipeline 23 is fixedly connected to one side of the outer wall of the fixed cylinder I11, a driving assembly is mounted on the upper surface of a top cover 2, a second pipeline 28 is fixedly connected to one side of the outer wall of the fixed cylinder I11, a second fixed cylinder 29 is fixedly connected to one end of the second pipeline 28, a filtering assembly comprises a fixing plate 4, the outer wall of the fixing plate 4 is fixedly connected to the inner wall of the filtering cylinder 1, a filter cartridge 5 is slidingly connected to the outer wall of the fixing plate 4, a lifting handle 6 is rotatably connected to the upper surface of the filter cartridge 5, the driving assembly comprises a second motor 25, the lower surface of the second motor 25 is fixedly connected to the upper surface of the top cover 2, the output end of the second motor 25 is fixedly connected with a transmission shaft 26, the outer wall of the transmission shaft 26 is fixedly connected with a half gear 33, and a belt 27 is in transmission connection between the transmission shaft 26 and the transmission shaft 19;
specifically, the filter vat 1 is made of high-strength corrosion-resistant materials, can bear the pressure of a closed water system, provides stable filtering space for the device, ensures the sealing performance of the device by a top cover 2 on the upper surface of the filter vat 1, prevents impurities from entering, a water inlet pipe 3 on one side of the outer wall is used for introducing water to be treated, the pipe diameter and the water flow speed of the water are adapted, smooth water inflow is ensured, the fixed plate 4 plays a role in supporting and fixing the filter vat 5 in a filter assembly on the inner wall of the filter vat 1, the firm structure of the fixed plate enables the filter vat 5 to keep stable under the impact of water flow, the filter vat 5 adopts fine filter screen materials, particle impurities, suspended matters and the like in water can be effectively intercepted, the water quality is ensured to be cleaned, a handle 6 is convenient for installing, disassembling and cleaning the filter vat 5, the convenience of maintenance is improved, a rotating shaft seat 9 on the bottom of the inner wall of the filter vat 1 is matched with a scraper 10 when the scraper 10 rotates, the impurity deposited at the bottom can be scraped to prevent the impurity from piling up to block the drain pipe 8, the smoothness of the drain is ensured, the water outlet pipe 7 at one side of the outer wall of the filter barrel 1 outputs filtered clean water to meet the water requirement of a closed water system, the drain pipe 8 is used for periodically discharging the filtered impurity and sewage to maintain the normal operation of the device, the first fixed cylinder 11 provides a mounting foundation for the internal components in the cleaning component on the upper surface of the top cover 2, the firm material of the component is ensured to be stable, the first bracket 12 firmly supports the first motor 13, the first motor 13 adopts a driving motor with proper power, the rotating shaft 14 at the output end stably transmits power to drive the U-shaped frame 15 to rotate, the spring 16 and the limiting plate 17 on the inner wall of the U-shaped frame 15 enable the cleaning brush 18 to be tightly attached to the inner wall of the filter barrel 5, the elasticity of the spring 16 ensures that the cleaning brush 18 can effectively clean the filter screen under different working conditions, in the flushing assembly inside the fixed cylinder I11, the transmission cylinder 19 is sleeved on the outer wall of the rotating shaft 14, in the rotating process, water is uniformly sprayed on the inner wall of the filter cylinder 5 through the transmission hole 21 and the drain pipe 22 to flush a filter screen, the cleaning effect is further enhanced, the sealing ring 20 prevents water leakage, the flushing efficiency is guaranteed, the first pipeline 23 is connected with an external water source to provide sufficient water flow for flushing, the second motor 25 drives the transmission shaft 26 to rotate in the driving assembly on the upper surface of the top cover 2, the half gear 33 is matched with other components to realize specific transmission action, the belt 27 stably transmits power to enable the transmission cylinder 19 to rotate, work of all the components is coordinated, the automatic operation of the whole cleaning and flushing process is guaranteed, the practicability and the water-saving performance of the device are improved, the operation requirement of a closed water system is met, and the water resource waste and the equipment maintenance cost are reduced.
Referring to fig. 1-7, a piston assembly is mounted in a second fixing cylinder 29, one side of the outer wall of the second fixing cylinder 29 is fixedly connected with a third pipeline 30, the outer wall of the first pipeline 23, the outer wall of the second pipeline 28 and the outer wall of the third pipeline 30 are fixedly connected with a valve 24, the piston assembly comprises a limiting rod 31, the upper surface of the limiting rod 31 is fixedly connected with a fixing block 32, the lower surface of the fixing block 32 is rotatably connected with a reciprocating screw 34, the outer wall of the reciprocating screw 34 is in threaded connection with a second motor 25, the outer wall of the reciprocating screw 34 is in threaded connection with a piston plate 35, the outer wall of the reciprocating screw 34 is fixedly connected with a spur gear 36, the spur gear 36 is in meshed connection with a half gear 33, the outer wall of the limiting plate 17 is slidably connected with the inner wall of a U-shaped frame 15, the limiting plate 17 is used for limiting the movement of a cleaning brush 18, the outer wall of a sealing ring 20 is rotatably connected with the inner wall of the first fixing cylinder 11, the drain pipe 22 is used for sealing and preventing liquid from leaking, the outer wall of the reciprocating screw 34 is penetratingly arranged in the second fixing cylinder 29, the reciprocating screw 34 is used for driving the piston plate 35 to reciprocate, the inner wall of the piston plate 35 is slidably connected with the outer wall of the limiting rod 31, the limiting rod 31 is used for limiting the piston plate 35 to move;
Specifically, the piston assembly installed inside the second fixing cylinder 29 is an important component of the water saving device, wherein the limiting rod 31 is made of high-strength metal materials, the surface of the limiting rod 31 is smooth and straight, the fixed block 32 with the upper surface fixed can stably support and fix the reciprocating screw rod 34, the reciprocating screw rod 34 rotationally connected with the lower surface of the fixed block 32 can not deviate or shake in the rotation process, the second motor 25 provides stable power output to drive the reciprocating screw rod 34 to rotate, the piston plate 35 with the threaded connection of the outer wall can do reciprocating linear motion inside the second fixing cylinder 29, the inner wall of the piston plate 35 is tightly and slidably connected with the outer wall of the limiting rod 31, the limiting rod 31 not only can accurately guide the operation of the piston plate 35, ensuring that the reciprocating motion is always carried out along a linear track, avoiding deflection to influence the sealing effect and the working performance, preventing the piston plate 35 from excessively rotating or swaying in the motion process, ensuring the stable operation of the piston plate 35, effectively realizing the control and pushing action on water flow, and ensuring that a spur gear 36 fixedly connected with the outer wall of a reciprocating screw 34 is meshed with a half gear 33, reasonably converting and transmitting the rotation motion of a motor II 25 in a gear transmission way, ensuring that the transmission of the whole device is more accurate and stable, coordinating the action sequence and rhythm among all parts, ensuring the operation of the device to be smoother and more efficient, ensuring that the outer wall of a limiting plate 17 is slidably connected with the inner wall of a U-shaped frame 15, ensuring that the limiting plate 17 is made of firm plastic or metal with certain toughness and mainly has the function of accurately limiting and guiding the motion of a cleaning brush 18, in the process that the cleaning brush 18 rotates along with the U-shaped frame 15 and moves up and down, the limiting plate 17 can ensure that the cleaning brush 18 is always kept at a proper position and a proper angle to be tightly attached to the inner wall of the filter cartridge 5, so that the cleaning brush 18 can comprehensively and completely cover the inner wall of the filter cartridge 5, Thoroughly cleaning, effectively get rid of impurity and dirt attached to filter screen surface, filtration efficiency and life of cartridge filter 5 are improved, sealing washer 20 outer wall rotates and connects at the inner wall of fixed section of thick bamboo one 11, sealing washer 20 adopts soft and has good elasticity and leakproofness's rubber material to make usually, it closely laminates on the inner wall of fixed section of thick bamboo one 11, in the rotation of transmission section of thick bamboo 19, can prevent effectively that liquid from revealing from the junction of transmission section of thick bamboo 19 and fixed section of thick bamboo one 11, ensure the leakproofness of flushing assembly, guarantee that flushing water can spray on the inner wall of cartridge filter 5 accurately, improve the washing effect, avoid the waste of water resource, simultaneously also prevent to cause the damage to other parts inside the device because of leaking, guarantee normal operation and stability of device, drain pipe 22 adopts corrosion-resistant tubular product to make, its internal passage is smooth and moderate, in the flushing process, can evenly disperse and spray the water that flows in from transmission hole 21 on the inner wall of cartridge filter 5, its good leakproofness can prevent that liquid from taking place to leak in the spraying process simultaneously, guarantee that flushing water can fully acts on the filter screen, realize the high-efficient filter screen and further to the water quality of device and water quality of water can be guaranteed, the requirements of a reasonable system is met to water quality, water quality of water quality is further to the closed filter screen is improved, and water quality is reasonable 23, the requirements are met to the water quality, and the water quality is further improved, and the filter screen is reasonable, The valve 24 fixedly connected with the outer walls of the second pipeline 28 and the third pipeline 30 adopts a high-quality ball valve or butterfly valve, so that the on-off state and the flow rate of water flow can be accurately controlled, and in different working stages of the device, such as water inlet, flushing, water discharge and the like, the accurate control of the water flow path and the flow rate can be realized through reasonable operation of the valve 24, each part of the device is ensured to work according to preset programs and requirements, the automation degree and the working efficiency of the device are improved, meanwhile, the device is also convenient to maintain and debug, the stable and reliable operation of the device is ensured, and continuous and efficient water saving and filtering services are provided for a closed water system.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411970564.8A CN119660848B (en) | 2024-12-30 | 2024-12-30 | A water-saving device suitable for closed water system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411970564.8A CN119660848B (en) | 2024-12-30 | 2024-12-30 | A water-saving device suitable for closed water system |
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| Publication Number | Publication Date |
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| CN119660848A true CN119660848A (en) | 2025-03-21 |
| CN119660848B CN119660848B (en) | 2025-10-21 |
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| CN202411970564.8A Active CN119660848B (en) | 2024-12-30 | 2024-12-30 | A water-saving device suitable for closed water system |
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| Publication number | Publication date |
|---|---|
| CN119660848B (en) | 2025-10-21 |
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