Single-bin independent circulating filtration system of tunnel type washing machine
The single-compartment independent circulation filtration system solves the problems of poor washing effect and pipe blockage caused by the accumulation of impurities in the washing machine, realizes efficient recycling of washing water and automatic impurity removal, and improves washing effect and equipment life.
Patent Information
- Application Number
- CN202520555731.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing laundry faucets, lint, fibers, and other impurities shed from the surface of linens accumulate in the washing water during the washing process, affecting the washing effect, potentially causing pipe blockage and equipment wear, and seriously impacting operational efficiency and the quality of linen washing.
It adopts a single-compartment independent circulation filtration system, including bottom pipe, inlet pipe, outlet pipe, filter and filtration pipe. The system uses a water pump and filter cartridge to achieve continuous cleaning and efficient recycling of washing water. The filtration process is made dynamic by using rollers, a rotary motor and toothed belt. Combined with drainage pipe and pneumatic drain valve, it achieves automated impurity removal.
Ensure the continuous cleanliness of washing water, reduce water waste, improve washing effect, prevent pipe blockage, extend equipment life, improve work efficiency, and reduce manual intervention.
Smart Images

Figure CN223936851U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of washing machine technology, and in particular to a single-compartment independent circulation filtration system for a washing machine. Background Technology
[0002] Laundry drums, as important equipment in the modern industrial laundry field, are widely used in linen cleaning operations in hotels, hospitals, laundries, and other places due to their efficient, continuous, and automated washing process. A typical laundry drum consists of an inner drum and an outer drum, and usually comprises a series of closely connected functional areas, including a loading area, a pre-washing area, a main washing area, a rinsing area, and a drying area, forming a complete laundry production line. The inner drum loads the linens to be washed, and with the aid of detergent, efficient cleaning is achieved through rotation and spraying.
[0003] In related technologies, as the washing process proceeds, impurities such as lint and fibers shed from the surface of the linens gradually accumulate in the washing water. If not treated in time, this will not only affect the washing effect, but may also lead to problems such as pipe blockage and equipment wear, seriously affecting the operating efficiency of the laundry duct and the washing quality of the linens. Therefore, this issue needs to be improved. Utility Model Content
[0004] To address the issue of lint and other fibers affecting washing performance, this application provides a single-compartment independent circulation filtration system for a laundry ladle.
[0005] The single-compartment independent circulation filtration system for a washing machine provided in this application adopts the following technical solution:
[0006] A single-compartment independent circulation filtration system for a washing machine includes a bottom pipe connected to the outer drum of the washing machine and an inlet pipe connected to the inner drum of the washing machine. The bottom pipe is connected to an outlet pipe. A first water pump for pumping water into the outlet pipe is installed on the bottom pipe. A filter is connected to the end of the outlet pipe away from the bottom pipe. The filter has a filter cartridge for filtering lint inside. A filter pipe is connected to the bottom of the filter. The filter pipe is connected to the inlet pipe. A second water pump for pumping water into the inlet pipe is installed on the filter pipe.
[0007] As the washing process progresses, lint, fibers, and other impurities shed from the surface of the linens gradually accumulate in the washing water. If not treated in time, this will not only affect the washing effect but may also lead to problems such as pipe blockage and equipment wear, seriously affecting the operating efficiency of the washing machine and the washing quality of the linens. By adopting the above technical solution, including a bottom pipe and an inlet pipe, the outlet pipe is connected between the bottom pipe and the filter, and the filter pipe is connected between the filter and the inlet pipe.
[0008] During the washing process of the washing machine, the first water pump in the bottom pipe draws wastewater containing lint, fibers and other impurities from the bottom of the outer drum. The wastewater is sent to the filter through the outlet pipe and filtered through the filter cylinder. The filter screen intercepts lint and impurities, while the clean water continues to flow. The filtered clean water is drawn back by the second water pump through the filter pipe, passes through the inlet pipe and is reintroduced into the inner drum of the washing machine for the next round of washing and spraying. This process is continuously cyclical, achieving continuous cleaning and efficient use of washing water.
[0009] By incorporating inlet pipes, filters, and outlet pipes, the system effectively intercepts impurities such as lint and fibers, ensuring the continuous cleanliness of the washing water. This achieves efficient recycling of the washing water, reducing water waste. The clean washing water can more effectively penetrate linen fibers, removing stains and improving washing results. It also reduces detergent residue in the washing water, preventing secondary pollution of the linens. Regular filtration removes impurities, preventing their accumulation in the pipes, effectively preventing blockages, and extending the lifespan of the washing machine. The entire filtration process is completed automatically by the system without manual intervention, improving work efficiency.
[0010] Optionally, the filter cartridge is made of a stainless steel filter screen with a mesh size of 40.
[0011] By adopting the above technical solution, the filter cylinder is made of a 40-mesh stainless steel filter screen welded around it. With the filter cylinder set up, the 40-mesh stainless steel filter screen has an appropriate pore size, which can effectively intercept impurities such as lint and fibers in the washing water, ensuring the cleanliness of the washing water. The clean washing water can penetrate the linen fibers more deeply to remove stains, thereby improving the washing effect and making the linens cleaner.
[0012] Optionally, a roller is provided on the outside of the filter cartridge, and a rotary motor is provided inside the filter. The output end of the rotary motor is provided with a toothed belt for cooperating with the roller.
[0013] By adopting the above technical solution, the roller is installed outside the filter cartridge, and the toothed belt inside the filter is driven by a rotary motor. The cooperation between the toothed belt and the roller realizes the rotation of the filter cartridge, causing the lint left in the filter cartridge after filtration to gradually gather into a ball shape. The arrangement of the roller, rotary motor and toothed belt makes the filtration process dynamic, which helps impurities such as lint to be more easily thrown out and gathered into a ball shape under the action of centrifugal force, which is convenient for subsequent cleaning. At the same time, it can reduce the accumulation of impurities on the filter screen, reduce the risk of clogging, and thus extend the service life of the filter cartridge.
[0014] Optionally, the filter may have a lint collection trough inside for collecting lint.
[0015] By adopting the above technical solution, the lint collection groove is formed inside the filter; the lint collection groove can directly receive the lint that falls off or is thrown out from the filter cylinder, ensuring that the lint is effectively collected and avoiding the lint from scattering inside or outside the filter, thereby improving the collection efficiency.
[0016] Optionally, the filter is provided with a drain pipe, and the drain pipe is provided with a pneumatic drain valve for controlling the on / off state. One end of the drain pipe is connected to the washing machine, and the other end of the drain pipe is connected to the filter. The drain pipe is arranged towards the lint collection tank inside the filter, and a drain elbow is provided at the bottom of the filter for draining water.
[0017] By adopting the above technical solution, the drain pipe is installed between the washing machine and the filter, the pneumatic drain valve is installed on the drain pipe, and the drain elbow is installed at the bottom of the filter. After washing, the washing machine stops rotating and the system enters the drainage preparation stage. The control unit sends a signal to the pneumatic drain valve. After receiving the signal, the cylinder of the pneumatic drain valve opens quickly, allowing the drain pipe to connect with the inside of the filter. As the pneumatic drain valve opens, under the flushing action of the sewage, the lint in the lint collection tank is flushed out and flows to the drain elbow with the sewage.
[0018] By installing drainage pipes, drainage elbows, and pneumatic drain valves, the drainage pipes are quickly connected to the inside of the filter. The lint in the lint collection tank is flushed out by the flushing action, ensuring that lint and other impurities can be effectively removed, preventing blockage and accumulation. No manual intervention is required, which improves work efficiency.
[0019] Optionally, the bottom of the filter is also provided with a pneumatic drain valve for draining water.
[0020] By adopting the above technical solution, the drain pneumatic valve is installed at the bottom of the filter. With the setting of the drain pneumatic valve, the drain pneumatic valve can quickly respond to the control signal and realize the rapid drainage of the filter, ensuring that the water inside the filter is discharged in time, avoiding the growth of bacteria and the generation of odors caused by water residue, thereby maintaining the cleanliness and hygiene of the filter.
[0021] Optionally, the filter is provided with a fan-shaped nozzle for cleaning the filter cartridge, and a high-pressure water pipe is connected to the fan-shaped nozzle. A high-pressure cleaning pump for pumping water is provided on the high-pressure water pipe.
[0022] By adopting the above technical solution, the fan-shaped nozzles are arranged towards the filter cartridge, and the fan-shaped nozzles are installed on the high-pressure water pipe, with the high-pressure cleaning pump also located on the high-pressure water pipe. Through the arrangement of the fan-shaped nozzles, high-pressure water pipe, and high-pressure cleaning pump, the fan-shaped nozzles can spray high-pressure water jets. These high-pressure water jets have extremely strong impact and flow force, which can quickly wash away dirt and deposits on the filter cartridge. Furthermore, the spray pattern of the fan-shaped nozzles is fan-shaped, which can cover a wider area, ensuring that all parts of the filter cartridge are thoroughly cleaned, thus improving cleaning efficiency and reducing cleaning time.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] By inlet pipes, filters, and outlet pipes, the system effectively intercepts impurities such as lint and fibers, ensuring the continuous cleanliness of the washing water. This achieves efficient recycling of the washing water, reducing water waste. The clean washing water can more effectively penetrate the linen fibers, remove stains, improve washing results, reduce detergent residue in the washing water, and prevent secondary pollution of the linens. At the same time, the system regularly filters out impurities, preventing their accumulation in the pipes, effectively preventing pipe blockage, and extending the service life of the washing machine. The entire filtration process is completed automatically by the system without manual intervention, improving work efficiency.
[0025] By using rollers, a rotary motor, and a toothed belt, the filtration process becomes dynamic, which helps impurities such as lint to be more easily thrown out and aggregate into balls under the action of centrifugal force, making subsequent cleaning easier. At the same time, it can reduce the accumulation of impurities on the filter screen, reduce the risk of clogging, and thus extend the service life of the filter cartridge.
[0026] By installing drainage pipes, drainage elbows, and pneumatic drain valves, the drainage pipes are quickly connected to the inside of the filter. The lint in the lint collection tank is flushed out by the flushing action, ensuring that lint and other impurities can be effectively removed, preventing blockage and accumulation. No manual intervention is required, which improves work efficiency. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of a single-compartment independent circulation filtration system for a washing machine according to an embodiment of this application.
[0028] Figure 2 This is a cross-sectional view of a single-compartment independent circulation filtration system for a washing machine according to an embodiment of this application.
[0029] Figure 3 This is a partial cross-sectional view used to illustrate the filter cartridge structure in the embodiments of this application.
[0030] Explanation of reference numerals in the attached diagram: 1. Inner drum of the washing machine; 2. Outer drum of the washing machine; 3. Bottom pipe; 4. Pneumatic drain valve; 5. Inlet pipe; 6. High-pressure cleaning pump; 7. Outlet pipe; 8. High-pressure water pipe; 9. Rotary motor; 10. Fan-shaped nozzle; 11. Toothed belt; 12. Filter; 13. Roller; 14. Pneumatic drain valve; 15. Drain elbow; 16. Filter pipe; 17. Second water pump; 18. Drain pipe; 19. First water pump; 20. Filter cartridge; 21. Stainless steel filter screen; 22. Lint collection tank. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0032] This application discloses a single-compartment independent circulation filtration system for a washing machine. (Refer to...) Figure 1 and Figure 2 The single-compartment independent circulation filtration system of the washing machine includes a bottom pipe 3 and an inlet pipe 5. In this embodiment, the bottom pipe 3 is connected to the outer drum 2 of the washing machine. The end of the bottom pipe 3 away from the outer drum 2 of the washing machine is connected to the outlet pipe 7. At the same time, the end of the outlet pipe 7 away from the bottom pipe 3 is connected to the filter 12.
[0033] Reference Figure 2 and Figure 3 A first water pump 19 is installed on the bottom pipe 3. In this embodiment, the first water pump 19 is used to pump water into the outlet pipe 7. A filter cylinder 20 is installed inside the filter 12. The filter cylinder 20 is used to filter impurities such as lint. The filter cylinder 20 is made of stainless steel filter mesh welded around it. The stainless steel filter mesh 21 has a mesh size of 40. The 40-mesh stainless steel filter mesh 21 has an appropriate pore size, which can effectively intercept impurities such as lint and fibers in the washing water, ensuring the cleanliness of the washing water. The clean washing water can penetrate the linen fibers more deeply to remove stains, thereby improving the washing effect and making the linens cleaner.
[0034] Reference Figure 2 The filter cartridge 20 is equipped with rollers 13 on the outside and a rotary motor 9 is installed inside the filter 12. The output end of the rotary motor 9 is equipped with a toothed belt 11. In this embodiment, the rollers 13 and the toothed belt 11 cooperate to make the filtration process dynamic, which helps impurities such as lint to be more easily thrown out and agglomerated into balls under the action of centrifugal force, making subsequent cleaning easier. At the same time, it can reduce the accumulation of impurities on the filter screen, reduce the risk of clogging, and thus extend the service life of the filter cartridge 20.
[0035] Reference Figure 2 and Figure 3The filter 12 has a lint collection groove 22 formed inside. The lint collection groove 22 can directly receive the lint that falls off or is thrown out from the filter cylinder 20, ensuring that the lint is effectively collected and preventing the lint from scattering inside or outside the filter 12, thereby improving the collection efficiency.
[0036] Reference Figure 2 The bottom of the filter 12 is connected to a filter pipe 16. The end of the filter pipe 16 away from the filter 12 is connected to the inlet pipe 5. In this embodiment, a second water pump 17 is installed on the filter pipe 16. The filter cylinder 20 intercepts lint and impurities, while the clean water continues to flow. The filtered clean water is drawn back by the second water pump 17 through the filter pipe 16, passes through the inlet pipe 5, and is reintroduced into the inner drum of the washing machine.
[0037] Reference Figure 2 The filter 12 is also equipped with a drain pipe 18. One end of the drain pipe 18 is connected to the washing machine drum. In this embodiment, the drain pipe 18 can be connected to the washing machine drum. The other end of the drain pipe 18 is connected to the inside of the filter 12. The drain pipe 18 is arranged towards the lint collection groove 22 inside the filter 12. The drain elbow 15 is installed at the bottom of the filter 12 and is connected to the inside of the filter 12. In this embodiment, the drain elbow 15 can be equipped with a corresponding valve. This helps to achieve rapid connection between the drain pipe 18 and the inside of the filter 12, and flushes out the lint in the lint collection groove 22 under the flushing action, ensuring that lint and other impurities can be effectively removed, preventing blockage and accumulation, without the need for manual intervention, and improving work efficiency.
[0038] Reference Figure 2 The bottom of the filter 12 is also equipped with a drain pneumatic valve 14. In this embodiment, the bottom of the filter 12 can be equipped with a corresponding pipe, and the drain pneumatic valve 14 is installed on the corresponding pipe. The drain pneumatic valve 14 can quickly respond to the control signal to realize the rapid drainage of the filter 12, ensuring that the water inside the filter 12 is discharged in time, avoiding the growth of bacteria and the generation of odors caused by water residue, thereby keeping the filter 12 clean and hygienic.
[0039] Reference Figure 2 Inside the filter 12, there is a fan-shaped nozzle 10, and a high-pressure water pipe 8 is connected to the fan-shaped nozzle 10. The high-pressure water pipe 8 extends to the outside of the filter 12, and a high-pressure cleaning pump 6 is installed on the high-pressure water pipe 8. The fan-shaped nozzle 10 can spray high-pressure water. This high-pressure water has extremely strong impact and flow force, which can quickly wash away dirt and deposits on the filter cartridge 20. Moreover, the spray pattern of the fan-shaped nozzle 10 is fan-shaped, which can cover a wider area and ensure that all parts of the filter cartridge 20 are thoroughly cleaned, thereby improving cleaning efficiency and reducing cleaning time.
[0040] The implementation principle of a single-compartment independent circulation filtration system for a washing machine according to an embodiment of this application is as follows: During the washing process of the washing machine, the first water pump 19 in the bottom pipe 3 draws sewage containing lint, fibers and other impurities from the bottom of the outer drum. The sewage is sent to the filter 12 through the outlet pipe 7. The rotary motor 9 drives the toothed belt 11 to run. The toothed belt 11 cooperates with the roller 13 to realize the rotation of the filter cylinder 20, so that the lint left in the filter cylinder 20 after filtration gradually gathers into a ball shape and finally falls into the lint collection tank 22, while the clean water continues to flow. The filtered clean water is drawn back by the second water pump 17 through the filter pipe 16, passes through the inlet pipe 5 and is reintroduced into the inner drum of the washing machine for the next round of washing and spraying. This process is continuously circulated to achieve continuous cleaning and efficient utilization of washing water.
[0041] After washing, the washing machine stops rotating and the system enters the drainage preparation stage. The control unit sends a signal to the pneumatic drain valve 4. After receiving the signal, the cylinder of the pneumatic drain valve 4 opens quickly, allowing the drain pipe 18 to connect with the inside of the filter 12. As the pneumatic drain valve 4 opens, the lint in the lint collection tank 22 is flushed out by the flushing action of the sewage and flows to the drain elbow 15 with the sewage.
[0042] Through the inlet pipe 5, filter 12, and outlet pipe 7, impurities such as lint and fibers are effectively intercepted, ensuring the continuous cleanliness of the washing water. This achieves efficient recycling of the washing water, reducing water waste. The clean washing water can more effectively penetrate the linen fibers, remove stains, improve washing performance, reduce detergent residue in the washing water, and avoid secondary pollution of the linens. At the same time, the system regularly filters out impurities, preventing their accumulation in the pipes, effectively preventing pipe blockage, and extending the service life of the washing machine. The entire filtration process is completed automatically by the system without manual intervention, improving work efficiency.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A single-compartment independent circulation filtration system for a washing machine, characterized in that: The washing machine includes a bottom pipe connected to the outer drum and an inlet pipe connected to the inner drum. The bottom pipe is connected to an outlet pipe. A first water pump for pumping water into the outlet pipe is installed on the bottom pipe. A filter is connected to the end of the outlet pipe away from the bottom pipe. The filter has a filter cartridge for filtering lint inside. A filter pipe is connected to the bottom of the filter. The filter pipe is connected to the inlet pipe. A second water pump for pumping water into the inlet pipe is installed on the filter pipe.
2. The single-compartment independent circulation filtration system for a washing machine according to claim 1, characterized in that: The filter cylinder is made of stainless steel filter mesh with a mesh size of 40.
3. The single-compartment independent circulation filtration system for a washing machine according to claim 1, characterized in that: The filter cartridge is equipped with rollers on its exterior, and a rotary motor is installed inside the filter. The output end of the rotary motor is equipped with a toothed belt for cooperating with the rollers.
4. The single-compartment independent circulation filtration system for a washing machine according to claim 3, characterized in that: The filter is equipped with a lint collection trough for collecting lint.
5. The single-compartment independent circulation filtration system for a washing machine according to claim 1, characterized in that: The filter is equipped with a drain pipe, and the drain pipe is equipped with a pneumatic drain valve for controlling the on / off state. One end of the drain pipe is connected to the washing machine, and the other end of the drain pipe is connected to the filter. The drain pipe is arranged towards the lint collection tank inside the filter, and the bottom of the filter is equipped with a drain elbow for draining water.
6. The single-compartment independent circulation filtration system for a washing machine according to claim 1, characterized in that: The bottom of the filter is also equipped with a pneumatic drain valve for draining water.
7. The single-compartment independent circulation filtration system for a washing machine according to claim 1, characterized in that: The filter is equipped with a fan-shaped nozzle for cleaning the filter cartridge. A high-pressure water pipe is connected to the fan-shaped nozzle, and a high-pressure cleaning pump for pumping water is installed on the high-pressure water pipe.