Cleaning liquid feeding device and cleaning equipment

Abstract

The utility model discloses a cleaning liquid feeding device and cleaning equipment, the cleaning liquid feeding device comprises a water inlet pipe, a water outlet pipe and a liquid feeding pipe, a pressure control valve is installed between the liquid feeding pipe and the water inlet pipe, the liquid feeding pipe is connected with a feeding pipe, and the feeding pipe is provided with a first one-way valve, a feeding pump and a storage container; the pressure control valve is connected with the water outlet pipe through a pressure guide pipe which is used for guiding pressure of the water outlet pipe to the pressure control valve. Through the designed pressure control valve and the pressure guide pipe, the cleaning liquid feeding pipe is isolated from high-pressure tap water, the tap water passes only when water enters the washing equipment, the liquid feeding pipe and the tap water are isolated by the pressure control valve in the non-water-inlet time, and the liquid feeding pipe does not bear the high pressure of the tap water; the risk that a one-way valve in the feeding device breaks down can be effectively reduced, tap water leakage can be avoided, tap water is prevented from flowing into the cleaning liquid storage container to pollute the cleaning liquid, and therefore cleaning liquid loss and water resource waste are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a cleaning liquid dispensing device and a cleaning equipment. BACKGROUND

[0002] With the rapid iteration of smart home technology and the increasing demand of consumers for convenient life, household appliances such as washing machines and dishwashers with automatic cleaning liquid dispensing function have gradually become the mainstream of the market. Among them, the external automatic cleaning liquid dispensing device can be used with ordinary cleaning equipment, and can automatically and accurately dispense cleaning liquid without manual intervention, thereby simplifying the cleaning process and bringing great convenience to users.

[0003] In the existing external automatic cleaning liquid dispensing device, cleaning liquid can be dispensed into the cleaning equipment through the dispensing pipeline. The design of the dispensing pipeline is usually connected to the water faucet at one end and connected to the cleaning equipment at the other end. The entire dispensing process is controlled by an electric control system. When the electric control system issues a dispensing cleaning liquid instruction, the dispensing pump draws cleaning liquid from the storage container and injects it into the dispensing pipeline. When tap water flows through the dispensing pipeline, it will dilute and flush the cleaning liquid in the dispensing pipeline into the cleaning equipment, thereby realizing the function of automatically dispensing cleaning liquid.

[0004] However, the dispensing pipeline of the commonly used automatic cleaning liquid dispensing device is mostly designed as a single pipeline, that is, the cleaning liquid dispensing pipeline is directly connected to the municipal water supply pipeline. This design causes the dispensing pipeline to always bear the pressure of the municipal water supply system. Since the dispensing pump is connected to the dispensing pipeline, the precise valve and other components inside the dispensing pump need to bear the high pressure of the water supply pipeline for a long time. This long-term high pressure increases the wear and failure risk of the components. Even if a one-way valve is used as a separation device between the dispensing pump and tap water, if the one-way valve fails, the dispensing pump will be impacted by the high-pressure tap water, which not only easily causes tap water leakage, but also may cause tap water to flow into the cleaning liquid storage container, thereby contaminating the cleaning liquid, causing loss of cleaning liquid and waste of water resources. SUMMARY

[0005] To solve the above problems, the present application provides a cleaning liquid dispensing device and a cleaning equipment, which can avoid tap water leakage and prevent tap water from flowing into the cleaning liquid storage container to contaminate the cleaning liquid, thereby avoiding loss of cleaning liquid and waste of water resources.

[0006] In a first aspect, the application provides a cleaning liquid dispensing device, comprising a water inlet pipe connected to a water inlet end, a water outlet pipe connected to a water outlet end, and a liquid dispensing pipe connected between the water inlet pipe and the water outlet pipe, wherein a pressure control valve is installed between the liquid dispensing pipe and the water inlet pipe, and the liquid dispensing pipe is connected with a dispensing pipe, wherein the dispensing pipe is installed with a first one-way valve, a dispensing pump, and a storage container for storing cleaning liquid; the pressure control valve is connected with the water outlet pipe through a pressure guide pipe, and the pressure guide pipe is used to guide the pressure of the water outlet pipe to the pressure control valve of the liquid dispensing pipe.

[0007] In an embodiment of the application, the pressure control valve comprises a valve body and a valve cover connected to the valve body, wherein the valve body is provided with a water inlet, a water outlet, and a pressure guide opening, the water inlet is connected with the water inlet pipe, the water outlet is connected with the liquid dispensing pipe, and the pressure guide opening is connected with the pressure guide pipe, the pressure guide opening is communicated with the water outlet end through the pressure guide pipe, and the water inlet is communicated with the pressure guide opening; one side of the water outlet is provided with a water outlet pipe section communicated therewith, a movable valve core is arranged between the valve body and the valve cover, the valve core is matched with the water outlet pipe section, and is used to control the opening and closing of the water outlet pipe section and the water outlet communicated with the water outlet pipe section.

[0008] In an embodiment of the application, a first chamber is arranged in the valve cover, a spring is arranged in the first chamber, one end of the spring is in abutment with the valve cover, the other end of the spring is in abutment with the valve core, a diaphragm is fixed between the valve cover and the valve body, the diaphragm is located between the valve core and the water outlet pipe section, the valve core is used to drive the diaphragm to move between the water outlet pipe section and the valve cover, so that the diaphragm is in abutment with the water outlet pipe section to close the water outlet, or the diaphragm is away from the water outlet pipe section to open the water outlet.

[0009] In an embodiment of the application, the diaphragm is made of flexible rubber material; the end of the diaphragm is fixed between the valve cover and the valve body, and the middle part of the diaphragm is configured to move up and down between the water outlet pipe section and the valve cover under the driving of the valve core, so as to control the opening and closing of the water outlet pipe section and the water outlet.

[0010] In an embodiment of the application, the valve body is provided with a first channel communicated with the pressure guide opening, the valve cover is provided with a second channel communicated with the first channel, and the second channel is communicated with the first chamber in the valve cover; the inside of the valve core is provided with a second chamber, a capillary hole, and a third channel, the second chamber is communicated with the first chamber through the capillary hole, and the second chamber is communicated with the water inlet through the third channel; the pressure guide opening and the water inlet are communicated through the first channel, the second channel, the first chamber, the capillary hole, the second chamber, and the third channel.

[0011] In an embodiment of the present application, the water inlet end is connected to a tap water joint, and the water outlet end is connected to a water inlet valve of a cleaning device; tap water enters the water inlet end from the tap water joint, and the cleaning liquid discharged from the cleaning liquid discharge device enters the cleaning device through the water outlet pipe and the water outlet end; the water inlet pipe is provided with a flow meter.

[0012] In an embodiment of the present application, a cleaning liquid detection probe is further provided, which is arranged on the liquid discharge pipe between the liquid discharge pipe and the water outlet pipe; the liquid discharge pipe is provided with a second one-way valve, which is arranged on the liquid discharge pipe between the cleaning liquid detection probe and the water outlet pipe.

[0013] In an embodiment of the present application, the storage container is arranged at the end of the liquid discharge pipe, and the liquid discharge pump is arranged on the liquid discharge pipe between the storage container and the first one-way valve.

[0014] In an embodiment of the present application, the liquid discharge pipe is connected to a pressure compensation pipe, the pressure compensation pipe is provided with a pressure compensation valve, and the pressure compensation pipe is connected to the liquid discharge pipe between the pressure control valve and the liquid discharge pipe; the pressure compensation valve is used to balance the negative pressure generated in the liquid discharge pipe due to the interruption of water supply.

[0015] In a second aspect, the present application provides a cleaning device using the cleaning liquid discharge device, which further comprises a device body, and the cleaning liquid discharge device is arranged outside the device body and is suitable for discharging cleaning liquid to the device body.

[0016] The present application has the following beneficial effects:

[0017] The cleaning liquid discharge device and the cleaning device provided by the present application can effectively reduce the risk of failure of the one-way valve in the discharge device caused by the connection of the high-pressure water line, so that the discharge pump is not impacted by the high-pressure tap water, the risk of damage and failure of the discharge pump caused by long-term high-pressure effect can be effectively reduced, tap water leakage can be avoided, the cleaning liquid in the cleaning liquid storage container can be prevented from being polluted by tap water, and the loss of cleaning liquid and the waste of water resources can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure diagram of the cleaning liquid discharge device provided by the embodiment of the present application.

[0019] Figure 2 The cross-sectional view of the pressure control valve provided by the embodiment of the present application.

[0020] In the figure: 10, water inlet end; 101, water inlet pipe; 102, flow meter; 20, liquid injection pipe; 201, pressure control valve; 2011, water inlet; 2012, water outlet; 2013, pressure guide port; 2014, spring; 2015, diaphragm; 2016, valve body; 2017, valve core; 2018, first chamber; 2019, first channel; 2020, second channel; 2021, capillary hole; 2022, second chamber; 2023, third channel; 2024, water outlet pipe section; 2025, valve cover; 202, pressure compensation valve; 203, first one-way valve; 204, injection pump; 205, storage container; 206, cleaning liquid detection probe; 207, second one-way valve; 208, injection pipe; 209, pressure compensation pipe; 30, water outlet end; 301, water outlet pipe; 40, pressure guide pipe. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] The embodiment of the present application provides a cleaning liquid feeding device and cleaning equipment, which can avoid leakage of tap water, avoid tap water flowing into the cleaning liquid storage container to contaminate the cleaning liquid, thereby avoiding loss of the cleaning liquid and waste of water resources.

[0025] As shown in Figure 1 and Figure 2 The embodiment of the present application provides a cleaning liquid feeding device, which comprises a water inlet pipe 101 connected with a water inlet end 10, a water outlet pipe 301 connected with a water outlet end 30, and a liquid feeding pipe 20 connected between the water inlet pipe 101 and the water outlet pipe 301, wherein a pressure control valve 201 is arranged between the liquid feeding pipe 20 and the water inlet pipe 101, the liquid feeding pipe 20 is connected with a feeding pipe 208, the feeding pipe 208 is provided with a first one-way valve 203, a feeding pump 204, and a storage container 205 for storing cleaning liquid; the pressure control valve 201 is connected with the water outlet pipe 301 through a pressure guide pipe 40, and the pressure guide pipe 40 is used for guiding the pressure of the water outlet pipe 301 to the pressure control valve 201 of the liquid feeding pipe 20.

[0026] In some embodiments, the pressure control valve 201 comprises a valve body 2016 and a valve cover 2025 connected with the valve body 2016, the valve body 2016 is provided with a water inlet 2011, a water outlet 2012 and a pressure guide port 2013, the water inlet 2011 is connected with the water inlet pipe 101, the water outlet 2012 is connected with the liquid feeding pipe 20, and the pressure guide port 2013 is connected with the pressure guide pipe 40, the pressure guide port 2013 is communicated with the water outlet end 30 through the pressure guide pipe 40, and the water inlet 2011 is communicated with the pressure guide port 2013; one side of the water outlet 2012 is provided with a water outlet pipe section 2024 communicated therewith, a movable valve core 2017 is arranged between the valve body 2016 and the valve cover 2025, the valve core 2017 is matched with the water outlet pipe section 2024, and is used for controlling the on-off of the water outlet pipe section 2024 and the water outlet 2012 communicated with the water outlet pipe section 2024.

[0027] Further, the valve cover 2025 is provided with a first chamber 2018, and the first chamber 2018 is provided with a spring 2014, one end of the spring 2014 abutting against the valve cover 2025, and the other end abutting against the valve core 2017, and the valve cover 2025 and the valve body 2016 are fixed with a diaphragm 2015, the diaphragm 2015 is located between the valve core 2017 and the water outlet pipe segment 2024, and the valve core 2017 is used to drive the diaphragm 2015 to move between the water outlet pipe segment 2024 and the valve cover 2025, so that the diaphragm 2015 abuts against the water outlet pipe segment 2024 to close the water outlet 2012, or the diaphragm 2015 is away from the water outlet pipe segment 2024 to open the water outlet 2012.

[0028] Optionally, the diaphragm 2015 is made of flexible rubber material, and the end of the diaphragm 2015 is fixed between the valve cover 2025 and the valve body 2016, and the middle part of the diaphragm 2015 is configured to move up and down between the water outlet pipe segment 2024 and the valve cover 2025 under the driving of the valve core 2017, so as to control the water outlet pipe segment 2024 and the water outlet 2012.

[0029] Further, the valve body 2016 is provided with a first channel 2019 in communication with the pressure guide port 2013, the valve cover 2025 is provided with a second channel 2020 in communication with the first channel 2019, and the second channel 2020 is in communication with the first chamber 2018 in the valve cover 2025; the inside of the valve core 2017 is provided with a second chamber 2022, a capillary hole 2021 and a third channel 2023, the second chamber 2022 is in communication with the first chamber 2018 through the capillary hole 2021, and the second chamber 2022 is in communication with the water inlet 2011 through the third channel 2023; the pressure guide port 2013 and the water inlet 2011 are in communication through the first channel 2019, the second channel 2020, the first chamber 2018, the capillary hole 2021, the second chamber 2022 and the third channel 2023.

[0030] When the water outlet end 30 is closed, because the water outlet 2012 and the pressure guide port 2013 are both in communication with the water outlet end 30, the water inlet 2011 and the water outlet 2012 are in equal pressure, the diaphragm 2015 is pressed and closed under the elastic force of the spring 2014, so that the pressure control valve 201 is closed.

[0031] When the outlet end 30 is opened, the pressure of the guide pressure pipe 40 is released, causing the pressure of the guide pressure pipe 40 and the guide pressure port 2013 to decrease. Since the inlet port 2011 always bears the municipal water supply pressure, the pressure of the inlet port 2011 is much greater than the pressure of the guide pressure port 2013 plus the elastic force of the spring 2014. The diaphragm 2015 is opened, causing the pressure control valve 201 to open, and water flows out through the outlet port 2012.

[0032] When the outlet end 30 is closed, the pressure in the outlet pipe 301 is the same as the municipal water supply pipe pressure, which is transmitted to the diaphragm 2015 through the guide pressure pipe 40. The pressure on both sides of the diaphragm 2015 is equal, and the pressure control valve 201 is closed due to the elastic force of the spring 2014. After the pressure control valve 201 is closed, the back end of the injection pipe 20 will not be subjected to the high pressure impact of the water supply pipe. Even if the first one-way valve 203 of the injection pipe 20 fails, the injection pump 204 will not be subjected to the high pressure impact of the tap water, effectively reducing the risk of damage and failure of the injection pump 204 due to long-term high pressure, avoiding tap water leakage, avoiding the pollution of the cleaning liquid by tap water flowing into the cleaning liquid storage container 205, and thus avoiding the loss of cleaning liquid and waste of water resources.

[0033] In some embodiments, the inlet end 10 is connected to a tap water joint (municipal water supply pipe), and the outlet end 30 is connected to the water inlet valve of the cleaning device. Tap water enters the inlet end 10 from the tap water joint, and the outlet water of the cleaning liquid injection device enters the cleaning device through the outlet pipe 301 and the outlet end 30.

[0034] In some embodiments, the inlet pipe 101 is provided with a flow meter 102. The water flow in the inlet pipe 101 is detected by the flow meter 102.

[0035] In some embodiments, the storage container 205 is installed at the end of the injection pipe 208, and the injection pump 204 is installed on the injection pipe 208 between the storage container 205 and the first one-way valve 203.

[0036] In this embodiment, the first one-way valve 203 allows the injection pump 204 to draw cleaning liquid from the storage container 205 into the injection pipe 20, and prevents tap water for diluting and flushing cleaning liquid from flowing in reverse into the injection pump 204 and the storage container 205 in the injection pipe 208.

[0037] Optionally, the injection pump 204 includes a piston pump, a peristaltic pump, or a gear pump.

[0038] In some embodiments, the liquid injection pipe 20 is connected with a pressure compensation pipe 209, the pressure compensation pipe 209 is installed with a pressure compensation valve 202, and the pressure compensation pipe 209 is connected to the liquid injection pipe 20 between the pressure control valve 201 and the injection pipe 208. The pressure compensation valve 202 can balance the negative pressure generated in the liquid injection pipe 20 due to the interruption of water supply, so as to avoid the suction of the cleaning liquid from the storage container 205.

[0039] In the embodiment, when the municipal water supply is suddenly interrupted, negative pressure will be generated in the liquid injection pipe 20, and the pressure compensation valve 202 will be opened to balance the pressure in the liquid injection pipe 20, so as to avoid the cleaning liquid in the storage container 205 being sucked into the liquid injection pipe 20 by the negative pressure.

[0040] In some embodiments, a cleaning liquid detection probe 206 is further included, which is installed on the liquid injection pipe 20 between the injection pipe 208 and the water outlet pipe 301. The cleaning liquid detection probe 206 can detect whether the cleaning liquid has been successfully injected by the injection pump 204, and can also detect whether the cleaning liquid in the liquid injection pipe 20 has been completely flushed by the tap water.

[0041] In some embodiments, the liquid injection pipe 20 is installed with a second one-way valve 207, which is installed on the liquid injection pipe 20 between the cleaning liquid detection probe 206 and the water outlet pipe 301. The second one-way valve 207 can prevent the tap water in the water outlet pipe 301 from flowing back into the liquid injection pipe 20.

[0042] In summary, the cleaning liquid injection device provided by the application can isolate the cleaning liquid injection pipe 208 from the high-pressure tap water by designing the pressure control valve 301 and the pressure guide pipe 40, and the cleaning liquid injection pump 204 and the cleaning liquid storage container 205 are connected to the liquid injection pipe 20. Only when the washing equipment is supplied with water, the tap water flows through, and the liquid injection pipe 20 is isolated from the tap water by the pressure control valve 201 during the non-water supply time, so that the liquid injection pipe 20 is not subjected to the high pressure of the tap water. The risk of failure of the one-way valve in the injection device caused by the connection of the high-pressure water line can be effectively reduced, so that the injection pump 204 is not subjected to the impact of the high-pressure tap water, the risk of damage and failure of the injection pump 204 caused by long-term high-pressure action can be effectively reduced, the leakage of tap water is avoided, the tap water flowing into the cleaning liquid storage container 205 to pollute the cleaning liquid is avoided, and the loss of cleaning liquid and the waste of water resources are avoided.

[0043] In addition, the application also provides a control method of a cleaning liquid injection device, which comprises the following steps:

[0044] S1, when the user places an order on the application, the user selects whether to need automatic injection of cleaning liquid;

[0045] S2, after the cleaning device is started, the water inlet valve is opened to let water in;

[0046] S3, the flow meter 102 detects the change of water flow;

[0047] S31, if the user selects to automatically put in cleaning liquid in S1, the flow meter 102 detects the start of water inlet after the cleaning device starts to let water in, the putting-in pump 204 starts to work and draws corresponding cleaning liquid into the liquid-putting-in pipe 20, and the operation of setting time is completed; the tap water flowing into the liquid-putting-in pipe 20 dilutes the cleaning liquid and then flushes into the cleaning device; the cleaning liquid detection probe 206 detects whether the cleaning liquid is successfully put in; after the water inlet is stopped, the pressure control valve 201 of the liquid-putting-in pipe 20 is automatically closed, the liquid-putting-in pipe 20 is isolated and protected, and the whole process of automatic putting in is completed;

[0048] S32, if the user does not select to automatically put in cleaning liquid in S1, the putting-in device will not have any action; after the water inlet valve of the cleaning device is opened, tap water enters the cleaning device from the liquid-putting-in pipe 20 and the pressure guide pipe 40 at the same time;

[0049] S4, after the water inlet valve of the cleaning device is closed, the water outlet pipe 301 bears the pressure of the municipal water supply pipeline, and the liquid-putting-in pipe 20 is isolated and protected by the pressure control valve 201 at the front end thereof.

[0050] Further, the S31 further comprises:

[0051] After the water inlet valve of the cleaning device is opened, the water outlet end 30 is opened; since the pressure guide opening 2013 is communicated with the water outlet end 30 through the pressure guide pipe 40, the pressure of the pressure guide pipe 40 is released when the water outlet end 30 is opened, so that the pressure of the pressure guide pipe 40 and the pressure guide opening 2013 is reduced; since the water inlet opening 2011 always bears the municipal water supply pressure, the pressure of the water inlet opening 2011 is much greater than the pressure of the pressure guide opening 2013 plus the elastic force of the spring 2014, the diaphragm 2015 is opened, so that the pressure control valve 201 is opened, and water flows out through the water outlet opening 2012.

[0052] Further, the S4 further comprises:

[0053] After the water inlet valve of the cleaning device is closed, the water outlet end 30 is closed, and since the water outlet 2012 and the pressure guide opening 2013 are both in communication with the water outlet end 30, the pressure in the water outlet pipe 301 is the same as the pressure in the municipal water supply pipeline, and the pressure is transmitted to the diaphragm 2015 through the pressure guide pipe 40, the pressure on both sides of the diaphragm 2015 is equal, the diaphragm 2015 is pressed tightly and closed under the elastic force of the spring 2014, and the pressure control valve 201 is closed; after the pressure control valve 201 is closed, the liquid injection pipe 20 at the rear end will not be subjected to the high pressure impact of the water supply pipeline; even if the first one-way valve 203 of the liquid injection pipe 20 fails, the injection pump 204 will not be subjected to the impact of the high-pressure tap water, which can effectively reduce the risk of damage and failure of the injection pump 204 due to long-term high pressure, avoid tap water leakage, avoid tap water flowing into the cleaning liquid storage container 205 and polluting the cleaning liquid, thereby avoiding the loss of cleaning liquid and the waste of water resources.

[0054] In addition, the application also provides a cleaning device using the cleaning liquid injection device or the control method of the cleaning liquid injection device; the cleaning device further comprises a device body, and the cleaning liquid injection device is arranged outside the device body and is suitable for injecting cleaning liquid into the device body.

[0055] The cleaning device can be a commercial cleaning device such as a washing machine, a dishwasher, a shoe washing machine, a dryer, and a dry cleaning machine. Since the cleaning device uses any one of the cleaning liquid injection devices or the control method of the cleaning liquid injection device, it has all the advantages described above.

[0056] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the protection scope of the application.

Claims

1. A cleaning solution dispensing device, characterized in that, It includes an inlet pipe (101) connected to the inlet end (10), an outlet pipe (301) connected to the outlet end (30), and a dosing pipe (20) connected between the inlet pipe (101) and the outlet pipe (301). A pressure control valve (201) is installed between the dosing pipe (20) and the inlet pipe (101). The dosing pipe (20) is connected to a dispensing pipe (208). The dispensing pipe (208) is equipped with a first check valve (203), a dispensing pump (204), and a storage container (205) for storing cleaning liquid. The pressure control valve (201) is connected to the outlet pipe (301) through a pressure guide pipe (40). The pressure guide pipe (40) is used to guide the pressure of the outlet pipe (301) to the pressure control valve (201) of the dosing pipe (20).

2. The cleaning solution dispensing device according to claim 1, characterized in that, The pressure control valve (201) includes a valve body (2016) and a valve cover (2025) connected to the valve body (2016). The valve body (2016) is provided with an inlet (2011), an outlet (2012), and a pressure guide port (2013). The inlet (2011) is connected to the inlet pipe (101), the outlet (2012) is connected to the liquid injection pipe (20), and the pressure guide port (2013) is connected to the pressure guide pipe (40). The pressure guide port (2013) is connected to the pressure guide pipe (40) through the pressure guide pipe (40). The inlet (2011) is connected to the outlet (30), and the outlet (2012) is connected to the pressure guide (2013). A water outlet pipe section (2024) is provided on one side of the outlet (2012) and is connected to it. A movable valve core (2017) is provided between the valve body (2016) and the valve cover (2025). The valve core (2017) cooperates with the water outlet pipe section (2024) to control the opening and closing of the water outlet pipe section (2024) and the water outlet (2012) connected to the water outlet pipe section (2024).

3. The cleaning solution dispensing device according to claim 2, characterized in that, The valve cover (2025) contains a first chamber (2018), and a spring (2014) is disposed within the first chamber (2018). One end of the spring (2014) abuts against the valve cover (2025), and the other end abuts against the valve core (2017). A diaphragm (2015) is fixed between the valve cover (2025) and the valve body (2016), and the diaphragm (2015) is located at the valve core (2017). Between the outlet pipe section (2024) and the valve core (2017), the valve core (2017) is used to drive the diaphragm (2015) to move between the outlet pipe section (2024) and the valve cover (2025), so that the diaphragm (2015) abuts against the outlet pipe section (2024) to close the outlet (2012), or so that the diaphragm (2015) moves away from the outlet pipe section (2024) to open the outlet (2012).

4. The cleaning solution dispensing device according to claim 3, characterized in that, The diaphragm (2015) is made of flexible rubber. The end of the diaphragm (2015) is fixed between the valve cover (2025) and the valve body (2016). The middle part of the diaphragm (2015) is configured to move up and down between the water outlet section (2024) and the valve cover (2025) under the drive of the valve core (2017) to control the opening and closing of the water outlet section (2024) and the water outlet (2012).

5. The cleaning solution dispensing device according to claim 4, characterized in that, The valve body (2016) is provided with a first channel (2019) communicating with the pressure guide port (2013), and the valve cover (2025) is provided with a second channel (2020) communicating with the first channel (2019). The second channel (2020) communicates with a first chamber (2018) inside the valve cover (2025). The valve core (2017) is provided with a second chamber (2022), capillary pores (2021), and a third channel (2023) inside. The chamber (2022) is connected to the first chamber (2018) through the capillary pore (2021), and the second chamber (2022) is connected to the water inlet (2011) through the third channel (2023); the pressure guide port (2013) is connected to the water inlet (2011) through the first channel (2019), the second channel (2020), the first chamber (2018), the capillary pore (2021), the second chamber (2022), and the third channel (2023).

6. The cleaning solution dispensing device according to claim 1, characterized in that, The inlet end (10) is connected to a tap water connector, and the outlet end (30) is connected to the inlet valve of the cleaning equipment. Tap water enters the inlet end (10) from the tap water connector, and the water from the cleaning liquid dispensing device enters the cleaning equipment through the outlet pipe (301) and the outlet end (30). The inlet pipe (101) is equipped with a flow meter (102).

7. The cleaning solution dispensing device according to claim 1, characterized in that, It also includes a cleaning fluid detection probe (206), which is installed on the liquid dispensing pipe (20) between the dispensing pipe (208) and the water outlet pipe (301); the liquid dispensing pipe (20) is equipped with a second one-way valve (207), which is installed on the liquid dispensing pipe (20) between the cleaning fluid detection probe (206) and the water outlet pipe (301).

8. The cleaning solution dispensing device according to claim 1, characterized in that, The storage container (205) is installed at the end of the delivery pipe (208), and the delivery pump (204) is installed on the delivery pipe (208) between the storage container (205) and the first one-way valve (203).

9. The cleaning solution dispensing device according to claim 1, characterized in that, The liquid injection pipe (20) is connected to a pressure compensation pipe (209), and a pressure compensation valve (202) is installed on the pressure compensation pipe (209). The pressure compensation pipe (209) is connected to the liquid injection pipe (20) between the pressure control valve (201) and the injection pipe (208). The pressure compensation valve (202) is used to balance the negative pressure generated in the liquid injection pipe (20) due to water supply interruption.

10. A cleaning device, using the cleaning liquid dispensing device according to any one of claims 1-9, characterized in that, The cleaning equipment also includes a main body, and the cleaning liquid dispensing device is located on the outside of the main body and is suitable for dispensing cleaning liquid into the main body.

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