A flowmeter feedback control double-jet heating flow channel and window cleaning machine

Abstract

The utility model discloses a double -nozzle heating flow channel and window cleaning machine of flowmeter feedback control sets up first flowmeter on first water pipe, sets up second flowmeter on second water pipe, sets up second heating pump with second flowmeter electricity connection on third water pipe, sets up first heating pump with first flowmeter electricity connection on fourth water pump, and first flowmeter monitors water flow and transmits signal to first heating pump, and second flowmeter monitors water flow and transmits signal to second heating pump. Through the cooperation between flowmeter and heating pump, when the motor of water pump is forward or reverse, the corresponding side nozzle can spray hot water, which provides more practical performance for the product of double -nozzle heating flow channel of flowmeter feedback control and expands the application scene of double -nozzle heating flow channel of flowmeter feedback control.

Description

[Technical Field] This utility model relates to the field of window cleaning robot technology, specifically to a dual-nozzle heated flow channel with flow meter feedback control and a window cleaning machine. [Background Technology] Most existing window cleaning machines use a dual-nozzle design to improve cleaning efficiency and coverage. The two nozzles work together to quickly remove stains and dust from windows, enhancing cleaning results. This design is widely used in cleaning large glass curtain walls or residential windows.

[0001] However, existing window cleaning machines are prone to water freezing in low-temperature environments, leading to interruptions in liquid supply and affecting the continuity of cleaning operations. Furthermore, the lack of real-time monitoring of water flow rate makes it impossible to accurately control water flow parameters, easily resulting in unstable spray volume or resource waste. Therefore, there is a need for a flow channel capable of monitoring water flow rate and heating the water, as well as a window cleaning machine utilizing this flow channel system. [Utility Model Content] To solve the above-mentioned technical problems, this utility model proposes a dual-nozzle heating flow channel with flow meter feedback control and a window cleaning machine.

[0002] This utility model is achieved by the following technical solution: A flow meter feedback controlled dual-nozzle heated flow channel is applied to a water spray cleaning device, including a water pump. The water pump is equipped with a motor that can control the water circuit in both forward and reverse directions. One side of the water pump is connected to a water tank through a first water pipe, and the other side of the water pump is connected to the water tank through a second water pipe. The first water pipe is provided with a first control valve for controlling the flow of water on the side near the water tank. A first tee connector is provided between the first control valve and the water pump. A third water pipe connected to the first nozzle is provided on one side of the first tee connector. A third control valve for controlling the water flow is provided on the third water pipe between the first tee connector and the first nozzle. The second water pipe is provided with a second control valve for controlling the flow of water on the side near the water tank. A second three-way connector is provided between the second control valve and the water pump. A fourth water pipe connected to the second nozzle is provided on one side of the second three-way connector. A fourth control valve for controlling the water flow is provided on the fourth water pipe between the second three-way connector and the second nozzle. The first water pipe is provided with a first flow meter for monitoring and controlling the flow rate on the side near the water tank, and the fourth water pipe is provided with a first heating pump for heating the water flow in the pipe when the first flow meter detects water flow. The first flow meter is electrically connected to the first heating pump. The second water pipe is provided with a second flow meter for monitoring and controlling the flow rate on the side near the water tank. The third water pipe is provided with a second heating pump for heating the water flow in the pipe when the second flow meter detects water flowing through it on the side near the first nozzle. The second flow meter is electrically connected to the second heating pump.

[0003] As described above, in the flow meter feedback control dual-nozzle heating channel, the first flow meter is located between the first control valve and the water tank, and the second flow meter is located between the second control valve and the water tank; the first heating pump is located between the second three-way connector and the fourth control valve, and the second heating pump is located between the first three-way connector and the third control valve.

[0004] As described above, in the flow meter feedback controlled dual-nozzle heating channel, a first temperature control switch for controlling water temperature is provided on the side of the first heating pump, and a second temperature control switch for controlling water temperature is provided on the side of the second heating pump.

[0005] In the flow meter feedback controlled dual-nozzle heating channel described above, the first control valve, the second control valve, the third control valve, and the fourth control valve are all independently controlled.

[0006] As described above, in the flow meter feedback control dual-nozzle heating channel, when the water pump rotates forward to pump water, the first control valve and the fourth control valve control the water flow to be connected, while the second control valve and the third control valve control the water flow to be blocked; when the water pump rotates reverse to pump water, the second control valve and the third control valve control the water flow to be connected, while the first control valve and the fourth control valve control the water flow to be blocked.

[0007] In the flow meter feedback controlled dual-nozzle heating channel described above, the first control valve, the second control valve, the third control valve, and the fourth control valve are all one-way valves.

[0008] As described above, in the flow meter feedback controlled dual-nozzle heating channel, the first control valve and the second control valve are both directed from the water tank to the water pump, the third control valve is directed from the first three-way connector to the first nozzle, and the fourth control valve is directed from the second three-way connector to the second nozzle.

[0009] As described above, in the flow meter feedback controlled dual-nozzle heating channel, the first tee connector is connected to the water tank and the water pump respectively through the first water pipe, and is connected to the first nozzle through the third water pipe; the second tee connector is connected to the water tank and the water pump respectively through the second water pipe, and is connected to the second nozzle through the fourth water pipe.

[0010] As described above, the flow meter feedback-controlled dual-nozzle heating channel allows the first water pipe, the second water pipe, and the water tank to form a stable water path.

[0011] A window cleaning machine includes a dual-nozzle heated flow channel with flow meter feedback control as described above. The first nozzle is used for water outlet at one end of the window cleaning machine, and the second nozzle is used for water outlet at the other end of the window cleaning machine. The first nozzle and the second nozzle are independently controlled.

[0012] Compared with the prior art, the present invention proposes a dual-nozzle heated flow channel with flow meter feedback control and a window cleaning machine, which has the following advantages: 1. The dual-nozzle flow channel of this utility model, through the cooperation between the flow meter and the heating pump, enables the corresponding nozzle to spray hot water when the motor of the water pump rotates forward or reverse. This provides more practical performance for products using the dual-nozzle heating flow channel with flow meter feedback control and expands the application scenarios of the dual-nozzle heating flow channel with flow meter feedback control. 2. The water pump can control the water circuit by reversing its direction, and controls the opening and closing of the water circuit by the first control valve, the second control valve, the third control valve and the fourth control valve, so as to realize the water spraying operation of the two nozzles; 3. The first control valve, the second control valve, the third control valve, and the fourth control valve are all one-way valves, which can ensure that when the motor is rotating forward or in reverse, water flows out normally from one nozzle while the other nozzle does not work, thus ensuring that the two nozzles work independently; 4. The window cleaning machine adopts a dual-nozzle heated flow channel with flow meter feedback control, which can realize the operation of two nozzles with one water pump, ensuring the normal operation of the window cleaning machine; in addition, the heated water flow can easily clean the oil stains on the glass, providing convenience for the operation of the window cleaning machine. [Attached Image Description] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the dual-nozzle heating flow channel layout for flow meter feedback control of this utility model; Figure 2 This is a schematic diagram of the working process of the dual-nozzle heating flow channel with flow meter feedback control according to this utility model; Figure 3 This is another working schematic diagram of the dual-nozzle heating flow channel with flow meter feedback control according to this utility model.

[0014] The corresponding reference numerals in the attached figures are as follows: 10. Water pump; 20. Water tank; 31. First water pipe; 311. First control valve; 312. First tee connector; 32. Second water pipe; 321. Second control valve; 322. Second tee connector; 33. Third water pipe; 331. Third control valve; 34. Fourth water pipe; 341. Fourth control valve; 41. First nozzle; 42. Second nozzle; 51. First flow meter; 52. Second flow meter; 61. First heating pump; 62. Second heating pump.

Detailed Implementation Methods

[0015] Specific embodiments, combined with Figures 1 to 3 The technical solution of this utility model is further illustrated as shown.

[0016] A flow meter feedback controlled dual-nozzle heated flow channel is applied to a water spray cleaning device, including a water pump 10. The water pump 10 is equipped with a motor that can control the water circuit in both forward and reverse directions. One side of the water pump 10 is connected to a water tank 20 through a first water pipe 31, and the other side of the water pump 10 is connected to the water tank 20 through a second water pipe 32. The first water pipe 31 is provided with a first control valve 311 for controlling the flow of water on the side near the water tank 20. A first tee connector 312 is provided between the first control valve 311 and the water pump 10. A third water pipe 33 is provided on one side of the first tee connector 312 and connected to the first nozzle 41. A third control valve 331 for controlling the water flow is provided on the third water pipe 33 between the first tee connector 312 and the first nozzle 41. The second water pipe 32 is provided with a second control valve 321 for controlling the flow of water on the side near the water tank 20. A second three-way connector 322 is provided between the second control valve 321 and the water pump 10. A fourth water pipe 34 connected to the second nozzle 42 is provided on one side of the second three-way connector 322. A fourth control valve 341 for controlling the water flow is provided on the fourth water pipe 34 between the second three-way connector 322 and the second nozzle 42. The first water pipe 31 is provided with a first flow meter 51 for monitoring and controlling the flow rate on the side near the water tank 20. The fourth water pipe 34 is provided with a first heating pump 61 for heating the water flow in the pipe when the first flow meter 51 detects water flow. The first flow meter 51 is electrically connected to the first heating pump 61. The second water pipe 32 is provided with a second flow meter 52 for monitoring and controlling the flow rate on the side near the water tank 20. The third water pipe 33 is provided with a second heating pump 62 for heating the water flow in the pipe when the second flow meter 52 detects water flow. The second flow meter 52 is electrically connected to the second heating pump 62.

[0017] In this embodiment, by setting a first flow meter 51 on the first water pipe 31 and a second flow meter 52 on the second water pipe 32, it is possible to monitor whether water flows through the corresponding pipes and control the flow rate. When the motor of the water pump 10 rotates forward or backward, a defined water flow path can be formed through the first control valve 311, the second control valve 321, the third control valve 331, and the fourth control valve 341, causing the first flow meter 51 to work and simultaneously causing the first heating pump 61 on its opposite side to work and heat the water flow in the pipe, or causing the second flow meter 52 to work and simultaneously causing the second heating pump 62 on its opposite side to work and heat the water flow in the pipe. Using the heated water flow can provide more practical performance for products with dual-nozzle heating channels using flow meter feedback control and expand the application scenarios of dual-nozzle heating channels with flow meter feedback control.

[0018] Furthermore, as a preferred embodiment of this solution and not a limitation, one side of the first tee connector 312 is connected to the water tank 20 via the first water pipe 31, one side is connected to the water pump 10 via the first water pipe 31, and one side is connected to the first nozzle 41 via the third water pipe 33; one side of the second tee connector 322 is connected to the water tank 20 via the second water pipe 32, one side is connected to the water pump 10 via the second water pipe 32, and one side is connected to the second nozzle 42 via the fourth water pipe 34. The first tee connector 312 can connect the water pump 10, the water tank 20, and the first nozzle 41, and the second tee connector 322 can connect the water pump 10, the water tank 20, and the second nozzle 42, ensuring the continuity of the water circuit. This facilitates the water pump 10's motor rotating in both forward and reverse directions, coordinating with the first control valve 311, the second control valve 321, the third control valve 331, and the fourth control valve 341 to spray water from the first nozzle 41 or the second nozzle 42 for use.

[0019] like Figure 2As shown, this direction is the direction of water flow when the motor of the water pump 10 is rotating forward. The first control valve 311 and the fourth control valve 341 are open, and the second control valve 321 and the third control valve 331 are closed, so that the water pump 10 draws water out through the first water pipe 31, pumps it through the first control valve 311 to the water pump 10 for transfer, and flows through the second water pipe 32 to the second three-way connector 322. Then, through the third water pipe 33 and the fourth control valve 341, the water is transmitted to the second nozzle 42 for use. like Figure 3 As shown, this direction is the water flow direction when the motor of the water pump 10 reverses. The first control valve 311 and the fourth control valve 341 are closed, and the second control valve 321 and the third control valve 331 are open, so that the water pump 10 draws water out through the second water pipe 32, pumps it to the water pump 10 for transfer through the second control valve 321, and flows through the first water pipe 31 to the first three-way connector 312. Then, it is transmitted through the fourth water pipe 34 and the third control valve 331 to the first nozzle 41 for use.

[0020] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first flow meter 51 is disposed between the first control valve 311 and the water tank 20, and the second flow meter 52 is disposed between the second control valve 321 and the water tank 20; the first heating pump 61 is disposed between the second three-way connector 322 and the fourth control valve 341, and the second heating pump 62 is disposed between the first three-way connector 312 and the third control valve 331. The first flow meter 51 is positioned between the first control valve 311 and the water tank 20 to ensure that the water pump 10 motor contacts the water flow when rotating forward, while preventing the water flow from affecting the first flow meter 51 when the water pump 10 motor rotates in reverse. The principle and advantages of the second flow meter 52's positioning are the same as those of the first flow meter 51's positioning. The first heating pump 61 is positioned between the second three-way connector 322 and the fourth control valve 341 to heat the pipeline and water flow when the water pump 10 motor rotates forward, preventing the pipeline from freezing when the flow meter feedback-controlled dual-nozzle heating channel is applied to low-temperature scenarios, ensuring its normal and stable operation. The principle and advantages of the first heating pump 61's positioning are the same as those of the second heating pump 62's positioning.

[0021] Furthermore, as a preferred embodiment of this solution and not a limitation, a first temperature control switch (not shown in the figure) for controlling the water temperature is provided on one side of the first heating pump 61, and a second temperature control switch (not shown in the figure) for controlling the water temperature is provided on one side of the second heating pump 62. Optionally, the temperature range controlled by the first temperature control switch is 30 to 50°C, and the temperature range controlled by the second temperature control switch is 30 to 50°C.

[0022] The first and second temperature control switches can accurately control the water temperature, enabling the heated water to be used in various applications. For example, when the flow meter feedback-controlled dual-nozzle heating channel is applied to a window cleaning machine, the heated water can easily clean oil stains on the glass, facilitating the operation of the window cleaning machine.

[0023] Furthermore, as a preferred embodiment of this solution and not a limitation, the first control valve 311, the second control valve 321, the third control valve 331, and the fourth control valve 341 are all independently controlled. Independent control of the four valves ensures the continuity of the water circuit and guarantees the normal operation of the water pump 10 during motor forward and reverse rotation.

[0024] Optionally, when the water pump 10 rotates forward to pump water, the first control valve 311 and the fourth control valve 341 control the water flow to be connected, while the second control valve 321 and the third control valve 331 control the water flow to be blocked; when the water pump 10 rotates in reverse to pump water, the second control valve 321 and the third control valve 331 control the water flow to be connected, while the first control valve 311 and the fourth control valve 341 control the water flow to be blocked.

[0025] In this embodiment, the first control valve 311, the second control valve 321, the third control valve 331, and the fourth control valve 341 are all one-way valves. The fact that all four control valves are one-way valves allows water to flow from the first nozzle 41 or the second nozzle 42 when the motor rotates in either direction, reducing the need for external control devices.

[0026] Furthermore, as a preferred embodiment of this solution and not a limitation, the first control valve 311 and the second control valve 321 are both directed from the water tank 20 to the water pump 10; the third control valve 331 is directed from the first three-way connector 312 to the first nozzle 41; and the fourth control valve 341 is directed from the second three-way connector 322 to the second nozzle 42. The orientation of the four control valves facilitates the opening and closing of the water circuit when the water pump 10 rotates forward or reverse, and also facilitates the formation of the water circuit and enables normal water spraying.

[0027] Furthermore, as a preferred embodiment of this solution and not a limitation, the first water pipe 31, the second water pipe 32, and the water tank 20 can form a stable water path. The first water pipe 31, the second water pipe 32, and the water tank 20 can stably absorb water, facilitating the water spraying operation.

[0028] A window cleaning machine includes a dual-nozzle heated flow channel with flow meter feedback control as described above. The window cleaning machine, employing the dual-nozzle heated flow channel with flow meter feedback control, enables the operation of two nozzles using only one water pump. Simultaneously, the first flow meter 51 and the second flow meter 52 monitor whether water flows through and control the flow rate, correspondingly controlling the operation of the first heating pump 61 and the second heating pump 62 on the corresponding side of the circuit formed by the forward or reverse rotation of the water pump 10 motor. This ensures that the window cleaning machine can smoothly spray hot water from the first nozzle 41 and the second nozzle 42, facilitating the cleaning of oil stains and other impurities on the glass and providing convenience for the operation of the window cleaning machine.

[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the first nozzle 41 is used for water outlet at one end of the window cleaning machine, and the second nozzle 42 is used for water outlet at the other end of the window cleaning machine. The first nozzle 41 and the second nozzle 42 are independently controlled. Independent control of the first nozzle 41 and the second nozzle 42 enables normal water spraying while ensuring the stable operation of the window cleaning machine.

[0030] The working principle of this embodiment is as follows: This utility model proposes a flow meter feedback-controlled dual-nozzle heating channel and a window cleaning machine. The flow meter feedback-controlled dual-nozzle heating channel, through the cooperation between the flow meter and the heating pump, enables the corresponding nozzle to spray hot water when the motor of the water pump 10 rotates forward or backward. This provides more practical performance for products using the flow meter feedback-controlled dual-nozzle heating channel and expands its application scenarios. Its specific principle is as follows: When the motor of water pump 10 is rotating forward, the first control valve 311 and the fourth control valve 341 are in normal flow, while the second control valve 321 and the third control valve 331 are closed, allowing water pump 10 to draw water through the first water pipe 31. The first flow meter 51 monitors the water flow and controls the flow rate, and transmits the water flow signal to the first heating pump 61. The first heating pump 61 starts to work, and the water flow is pumped through the first control valve 311 to the water pump 10 for transfer, and then flows through the second water pipe 32 and the first heating pump 61 to the second three-way connector 322. The water is then transmitted through the third water pipe 33 and the fourth control valve 341 to the second nozzle 42 for use. When the motor of water pump 10 reverses, the first control valve 311 and the fourth control valve 341 are blocked, while the second control valve 321 and the third control valve 331 are open normally, allowing water pump 10 to draw water through the second water pipe 32. The second flow meter 52 monitors the water flow and controls the flow rate, and transmits the water flow signal to the second heating pump 62. The second heating pump 62 starts to work, and the water flows through the second control valve 321 to the water pump 10 for transfer, and then flows through the first water pipe 31 and the second heating pump 62 to the first three-way connector 312. The water is then transmitted through the fourth water pipe 34 and the third control valve 331 to the first nozzle 41 for use.

Claims

1. A dual-nozzle heated flow channel with flow meter feedback control, applied to water spray cleaning equipment, characterized in that, Includes a water pump (10), which is equipped with a motor capable of controlling the water circuit in both forward and reverse directions. One side of the water pump (10) is connected to the water tank (20) through a first water pipe (31), and the other side of the water pump (10) is connected to the water tank (20) through a second water pipe (32). The first water pipe (31) is provided with a first control valve (311) for controlling the flow of water on the side near the water tank (20). A first tee connector (312) is provided between the first control valve (311) and the water pump (10). A third water pipe (33) connected to the first nozzle (41) is provided on one side of the first tee connector (312). A third control valve (331) for controlling the water flow is provided on the third water pipe (33) between the first tee connector (312) and the first nozzle (41). The second water pipe (32) is provided with a second control valve (321) for controlling the flow of water on the side near the water tank (20). A second three-way connector (322) is provided between the second control valve (321) and the water pump (10). A fourth water pipe (34) connected to the second nozzle (42) is provided on one side of the second three-way connector (322). A fourth control valve (341) for controlling the water flow is provided on the fourth water pipe (34) between the second three-way connector (322) and the second nozzle (42). The first water pipe (31) is provided with a first flow meter (51) for monitoring and controlling the flow rate on the side near the water tank (20), and the fourth water pipe (34) is provided with a first heating pump (61) for heating the water flow in the pipeline when the first flow meter (51) detects the water flow passing through. The first flow meter (51) is electrically connected to the first heating pump (61). The second water pipe (32) is provided with a second flow meter (52) for monitoring and controlling the flow rate on the side near the water tank (20), and the third water pipe (33) is provided with a second heating pump (62) for heating the water flow in the pipeline when the second flow meter (52) detects the water flow passing through. The second flow meter (52) is electrically connected to the second heating pump (62).

2. The dual-nozzle heating flow channel with flow meter feedback control according to claim 1, characterized in that, The first flow meter (51) is located between the first control valve (311) and the water tank (20), and the second flow meter (52) is located between the second control valve (321) and the water tank (20); The first heating pump (61) is located between the second three-way connector (322) and the fourth control valve (341), and the second heating pump (62) is located between the first three-way connector (312) and the third control valve (331).

3. The dual-nozzle heating flow channel with flow meter feedback control according to claim 1, characterized in that, The first heating pump (61) has a first temperature control switch on one side for controlling the water temperature, and the second heating pump (62) has a second temperature control switch on one side for controlling the water temperature.

4. The dual-nozzle heating flow channel with flow meter feedback control according to claim 1, characterized in that, The first control valve (311), the second control valve (321), the third control valve (331), and the fourth control valve (341) are all controlled independently.

5. The dual-nozzle heating flow channel with flow meter feedback control according to claim 4, characterized in that, When the water pump (10) rotates forward to pump water, the first control valve (311) and the fourth control valve (341) control the water flow to be connected, while the second control valve (321) and the third control valve (331) control the water flow to be blocked; when the water pump (10) rotates backward to pump water, the second control valve (321) and the third control valve (331) control the water flow to be connected, while the first control valve (311) and the fourth control valve (341) control the water flow to be blocked.

6. The dual-nozzle heated flow channel with flow meter feedback control according to claim 1, characterized in that, The first control valve (311), the second control valve (321), the third control valve (331) and the fourth control valve (341) are all one-way valves.

7. The dual-nozzle heating flow channel with flow meter feedback control according to claim 6, characterized in that, The first control valve (311) and the second control valve (321) are both directed from the water tank (20) to the water pump (10), the third control valve (331) is directed from the first three-way connector (312) to the first nozzle (41), and the fourth control valve (341) is directed from the second three-way connector (322) to the second nozzle (42).

8. The dual-nozzle heated flow channel with flow meter feedback control according to claim 1, characterized in that, The first three-way connector (312) is connected to the water tank (20) and the water pump (10) respectively through the first water pipe (31), and is connected to the first nozzle (41) through the third water pipe (33); the second three-way connector (322) is connected to the water tank (20) and the water pump (10) respectively through the second water pipe (32), and is connected to the second nozzle (42) through the fourth water pipe (34).

9. The dual-nozzle heating flow channel with flow meter feedback control according to claim 1, characterized in that, The first water pipe (31), the second water pipe (32), and the water tank (20) can form a stable water path.

10. A window cleaning machine, characterized in that, Includes a dual-nozzle heating flow channel with flow meter feedback control as described in any one of claims 1-9, wherein the first nozzle (41) is used for water outlet at one end of the window cleaning machine, and the second nozzle (42) is used for water outlet at the other end of the window cleaning machine, and the first nozzle (41) and the second nozzle (42) are independently controlled.

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