Automatic liquid soap feeding device for commercial washing and dehydrating machine

Abstract

The utility model relates to the technical field of washing and dehydrating machines, and particularly discloses an automatic liquid soap feeding device for a commercial washing and dehydrating machine, which comprises a storage frame, a plurality of liquid soap tanks and a plurality of dispensing pumps, the liquid soap tanks and the dispensing pumps are arranged in the storage frame, and the liquid soap tanks are communicated with inlets of the dispensing pumps. Outlets of the dispensing pumps are communicated with washing equipment of the commercial washing and dewatering machine, the storage frame is installed in a drying cabinet of the commercial washing and dewatering machine, a driving mechanism is arranged on the liquid soap tank, and the external signal mechanism is connected with the driving mechanism, the dispensing pumps and the washing equipment. And the external signal mechanism controls the driving mechanism through a washing program of the washing equipment to convey the soap liquid of the corresponding type and the corresponding material quantity into the washing equipment through the distribution pump. According to the utility model, the soap liquid tank, the distribution pump, the external signal mechanism and the driving mechanism are arranged, so that the washing equipment of the commercial washing and dehydrating machine does not need to manually add soap liquid in the washing process, automatic feeding is realized, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of washing machines, and particularly relates to an automatic soap liquid feeding device for commercial washing machines. Background Art

[0002] With the improvement of people's requirements for cleanliness and hygiene, commercial washing machines are widely used in hotels, guesthouses, hospitals and other places. In the traditional washing process, it is necessary to manually add detergents, which has the problems of being cumbersome, low in efficiency and easy to cause waste. To solve these problems, some automatic feeding devices have emerged in the prior art, but they have the disadvantages of large volume, occupying a lot of space and inconvenient use. In addition, after the existing automatic feeding device for the washing machine is used, there will be some detergents remaining between the automatic feeding device and the washing equipment, which will cause waste of detergents on the one hand and affect the next washing on the other hand. Content of the Utility Model

[0003] Aiming at the technical problems in the prior art, the utility model provides an automatic soap liquid feeding device for commercial washing machines, which comprises a storage frame, a plurality of soap liquid tanks containing different soap liquids, and a plurality of dispensing pumps. The plurality of soap liquid tanks correspond to the plurality of dispensing pumps one by one. The soap liquid tanks and the dispensing pumps are both installed in the storage frame. The soap liquid tanks are communicated with the inlets of the dispensing pumps through input pipes. The outlets of the dispensing pumps are communicated with the washing equipment of the commercial washing machine through output pipes. The device further comprises an external signal mechanism. The storage frame is installed in the drying cabinet of the commercial washing machine. A driving mechanism is arranged on the soap liquid tank. The external signal mechanism is respectively connected with the plurality of driving mechanisms, the plurality of dispensing pumps and the washing equipment. The external signal mechanism controls the driving mechanism to convey the corresponding type of soap liquid to the corresponding dispensing pump through the washing program of the washing equipment, and conveys the corresponding amount of soap liquid to the washing equipment through the dispensing pump.

[0004] Furthermore, a liquid adding hole is arranged at the top of the soap liquid tank. A rubber plug is arranged in the liquid adding hole. A flexible connecting pipe is installed on the rubber plug. The input pipe is detachably connected with the flexible connecting pipe. The flexible connecting pipe extends to the bottom of the soap liquid tank.

[0005] Furthermore, a filter screen suction head is arranged at one end of the flexible connecting pipe located at the bottom of the soap liquid tank.

[0006] Further, the driving mechanism includes an extrusion plate, a push rod, a control component and a one-way valve. The extrusion plate is installed in the soap liquid tank and is hermetically and slidably connected to the soap liquid tank. A through hole matching the flexible connecting pipe is provided on the extrusion plate, and the flexible connecting pipe penetrates through the through hole. A connecting hole is also provided at the top of the soap liquid tank. The control component is connected to an external signal mechanism. The push rod is hermetically and slidably connected to the connecting hole under the action of the control component. One end of the push rod is fixedly connected to the extrusion plate, and the other end extends out of the soap liquid tank. The one-way valve is installed on the rubber plug, and the opening direction of the one-way valve is from the outside to the inside of the soap liquid tank.

[0007] Further, the control component includes an electromagnet, a suction block and a spring. The electromagnet is fixedly installed at the top of the soap liquid tank. The suction block is fixedly connected to the end of the push rod outside the soap liquid tank through a fixing frame. The electromagnet and the suction block face each other. The spring is sleeved on the push rod, and both ends of the spring are fixedly connected to the top of the soap liquid tank and the extrusion plate respectively. The external signal mechanism is connected to the control circuit of the electromagnet. When the electromagnet and the suction block are attracted, the extrusion plate slides downward against the elastic force of the spring, and the soap liquid enters the dispensing pump through the flexible connecting pipe and the input pipe. When the electromagnet and the suction block are separated, the extrusion plate slides upward under the elastic force of the spring, and the soap liquid located in the dispensing pump flows back into the soap liquid tank.

[0008] Further, the storage frame includes a soap liquid tank support frame, a dispensing pump mounting bracket and a visual window. The visual window, the soap liquid tank support frame and the dispensing pump mounting bracket are installed in sequence. The visual window and the soap liquid tank support frame face each other. The visual window is installed on one side of the drying cabinet close to the surface.

[0009] Beneficial effects:

[0010] 1. Through the setting of the storage frame, the soap liquid tank, the dispensing pump and the installation of the storage frame in the drying cabinet of the commercial washing and drying machine, the present utility model can make the space utilization more efficient, and at the same time has the effect of dust prevention, effectively improving the cleanliness and health of the use environment. Combined with the setting of the external signal mechanism and the driving mechanism, it can enable the washing equipment of the commercial washing and drying machine to not require manual addition of soap liquid during the washing process, and at the same time can easily realize the automatic detection and matching of soap liquid for different materials of clothes, and accurately control the supply amount of soap liquid to ensure the stability and reliability of the washing effect. In addition, the work efficiency is also improved. Specifically, when washing clothes, the washing program of the washing equipment will send a signal to the external signal mechanism. After receiving the relevant signal, the external signal mechanism will control the driving mechanism to work immediately and continuously transport the corresponding type of soap liquid to the dispensing pump according to different materials of clothes. Then the washing program will control the dispensing pump to transport the corresponding amount of soap liquid to the washing equipment through the output pipe according to the weight of the washed clothes. When the amount of soap liquid meets the requirements, the external signal mechanism controls the driving mechanism and the dispensing pump to stop working.

[0011] 2. In the present utility model, through the setting of the liquid adding hole, it is convenient to replenish the soap liquid. Through the setting of the rubber stopper, the liquid adding hole can be sealed to prevent the soap liquid from volatilizing. Combining with the detachable connection setting of the input pipe and the flexible connecting pipe, it is convenient to effectively switch between adding and discharging the soap liquid in the soap liquid tank. Combining with the setting that the flexible connecting pipe extends to the bottom of the soap liquid tank, it can prevent the soap liquid from splashing when adding the soap liquid, facilitating the addition of the soap liquid. In addition, it can also completely drain the soap liquid to avoid residue at the bottom of the soap liquid tank. Through the setting of the filter screen suction head, it can prevent impurities in the soap liquid from entering the flexible connecting pipe and the input pipe, avoiding blockage.

[0012] 3. In the present utility model, through the setting of the extrusion plate, the push rod, the control component and the one-way valve, it is possible to utilize the downward sliding of the extrusion plate to increase the pressure in the soap liquid tank below the extrusion plate, so that the internal soap liquid can be conveniently transported into the dispensing pump. Specifically, when the extrusion plate slides downward under the action of the push rod, the outside air will be supplemented into the soap liquid tank above the extrusion plate through the one-way valve, so that the internal and external pressures are always balanced. At this time, the extrusion plate will not slide upward, thus preventing the soap liquid from flowing back.

[0013] 4. In the present utility model, through the setting of the electromagnet, the suction block and the spring, it is possible to utilize the suction force between the electromagnet and the suction block and the elastic force of the spring to control the downward or upward sliding of the extrusion plate, so as to conveniently control the outflow or inflow of the soap liquid. Furthermore, it can recover the excess soap liquid remaining in the dispensing pump after the soap liquid is used up, avoiding waste of the soap liquid, and at the same time effectively preventing the remaining soap liquid from affecting the next washing. Specifically, when the external signal mechanism sends a signal to add soap liquid, the control circuit of the electromagnet is closed, the electromagnet is energized and attracts the suction block against the elastic force of the spring. At this time, the extrusion plate slides downward, and the soap liquid enters the dispensing pump through the flexible connecting pipe and the input pipe. When the external signal mechanism sends a signal that the soap liquid addition is completed, the control circuit of the electromagnet is disconnected, the electromagnet loses power, the spring returns to its original length, and the extrusion plate slides upward under the action of the elastic force of the spring against the atmospheric pressure in the soap liquid tank above the extrusion plate. At this time, the pressure in the space for holding the soap liquid below the extrusion plate decreases to form a certain negative pressure, so that the remaining soap liquid in the dispensing pump flows back to the soap liquid tank through the input pipe and the flexible connecting pipe.

[0014] 5. In the present utility model, through the setting of the soap liquid tank support frame, the dispensing pump mounting bracket and the visual window, it is convenient to install and fix the soap liquid tank and the dispensing pump. At the same time, it is convenient to observe the storage amount of the soap liquid in the soap liquid tank and facilitate timely replenishment. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Partial schematic diagram of the overall installation structure of the present utility model;

[0018] Figure 3 Schematic diagram of the installation structure of the driving mechanism and the soap liquid tank of the present utility model.

[0019] Explanation of the reference numerals:

[0020] 1. Soap liquid tank; 2. Dispensing pump; 3. Input pipe; 4. Output pipe; 5. Washing equipment; 6. External signal mechanism; 7. Drying cabinet; 8. Rubber plug; 9. Flexible connecting pipe; 10. Filter screen suction head; 11. Extrusion plate; 12. Push rod; 13. Check valve; 14. Electromagnet; 15. Suction block; 16. Fixed bracket; 17. Soap liquid tank support frame; 18. Dispensing pump mounting bracket; 19. Visual window. Detailed implementation manners

[0021] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0026] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0027] The present utility model provides an automatic soap liquid feeding device for a commercial washing machine, such as Figure 1 、 Figure 2As shown, it includes a storage frame, a plurality of soap liquid tanks 1 containing different soap liquids, and a plurality of dispensing pumps 2. The plurality of soap liquid tanks 1 correspond to the plurality of dispensing pumps 2 one by one. The soap liquid tanks 1 and the dispensing pumps 2 are both installed in the storage frame. The soap liquid tank 1 is communicated with the inlet of the dispensing pump 2 through an input pipe 3. The outlet of the dispensing pump 2 is communicated with a washing device 5 of a commercial washing machine through an output pipe 4. It further includes an external signal mechanism 6. The storage frame is installed in a drying cabinet 7 of the commercial washing machine and is located at one end of the drying cabinet 7 close to the bottom. A driving mechanism is provided on the soap liquid tank 1. The external signal mechanism 6 is respectively connected to the plurality of driving mechanisms, the plurality of dispensing pumps 2, and the washing device 5. The external signal mechanism 6 controls the driving mechanism to transport the corresponding type of soap liquid to the corresponding dispensing pump 2 through the washing program of the washing device 5, and the corresponding amount of soap liquid is transported to the washing device 5 through the dispensing pump 2.

[0028] In this embodiment, through the arrangement of the storage frame, the soap liquid tanks 1, the dispensing pumps 2, and the installation of the storage frame in the drying cabinet 7 of the commercial washing machine, the space utilization can be made more efficient, and at the same time, it has the effect of dust prevention, effectively improving the cleanliness and health of the use environment. Combined with the setting of the external signal mechanism 6 and the driving mechanism, it can enable the washing device 5 of the commercial washing machine to not require manual addition of soap liquid during the washing process, and at the same time, it can easily realize the automatic detection and matching of soap liquid for different materials of clothes, and accurately control the supply amount of soap liquid to ensure the stability and reliability of the washing effect. In addition, the work efficiency is also improved. Specifically, when washing clothes, the washing program of the washing device 5 will send a signal to the external signal mechanism 6. After receiving the relevant signal, the external signal mechanism 6 will control the driving mechanism to work immediately and continuously transport the corresponding type of soap liquid to the dispensing pump 2 according to different materials of clothes. Then, the washing program will control the dispensing pump 2 to transport the corresponding amount of soap liquid to the washing device 5 through the output pipe 4 according to the weight of the washed clothes. When the amount of soap liquid meets the requirements, the external signal mechanism 6 controls the driving mechanism and the dispensing pump 2 to stop working.

[0029] In the present utility model, preferably, as Figure 1 , Figure 3 shown, a liquid adding hole is provided at the top of the soap liquid tank 1. A rubber plug 8 is provided in the liquid adding hole. A flexible connecting pipe 9 is installed on the rubber plug 8. The input pipe 3 is detachably connected to the flexible connecting pipe 9. The flexible connecting pipe 9 extends to the bottom of the soap liquid tank 1. One end of the flexible connecting pipe 9 located at the bottom of the soap liquid tank 1 is provided with a filter screen suction head 10.

[0030] In this embodiment, through the setting of the liquid adding hole, it is convenient to replenish the soap liquid. Through the setting of the rubber stopper 8, the liquid adding hole can be sealed to prevent the soap liquid from volatilizing. Combining the detachable connection between the input pipe 3 and the flexible connecting pipe 9, it is convenient to effectively switch between adding and discharging the soap liquid in the soap liquid tank 1. Combining the setting that the flexible connecting pipe 9 extends to the bottom of the soap liquid tank 1, it can prevent the soap liquid from splashing when adding the soap liquid, facilitating the addition of the soap liquid, and also enabling the soap liquid to be completely drained to avoid residue at the bottom of the soap liquid tank 1. Through the setting of the filter screen suction head 10, it can prevent impurities in the soap liquid from entering the flexible connecting pipe 9 and the input pipe 3 to avoid blockage.

[0031] In the present utility model, preferably, as Figure 1 , Figure 3 shown, the driving mechanism includes an extrusion plate 11, a push rod 12, a control component and a one-way valve 13. The extrusion plate 11 is installed in the soap liquid tank 1 and is in sealed sliding connection with the soap liquid tank 1. The extrusion plate 11 is provided with a through hole matching the flexible connecting pipe 9, and the flexible connecting pipe 9 penetrates through the through hole. A connection hole is further provided at the top of the soap liquid tank 1. The control component is connected to the external signal mechanism 6. The push rod 12 is in sealed sliding connection with the connection hole under the action of the control component. One end of the push rod 12 is fixedly connected to the extrusion plate 11, and the other end extends out of the soap liquid tank 1. The one-way valve 13 is installed on the rubber stopper 8, and the opening direction of the one-way valve 13 is from the outside to the inside of the soap liquid tank 1.

[0032] In this embodiment, through the setting of the extrusion plate 11, the push rod 12, the control component and the one-way valve 13, it is possible to utilize the downward sliding of the extrusion plate 11 to increase the pressure in the soap liquid tank 1 below the extrusion plate 11, so that the internal soap liquid can be conveniently transported to the dispensing pump 2. Specifically, when the extrusion plate 11 slides downward under the action of the push rod 12, the outside air will be replenished into the soap liquid tank 1 above the extrusion plate 11 through the one-way valve 13, so that the internal and external pressures are always balanced. At this time, the extrusion plate 11 will not slide upward, thus preventing the soap liquid from flowing back.

[0033] In the present utility model, preferably, as Figure 1 , Figure 3As shown in the figure, the control component includes an electromagnet 14, a suction block 15 and a spring. The electromagnet 14 is fixedly installed on the top of the soap liquid tank 1. The suction block 15 is fixedly connected to the end of the push rod 12 outside the soap liquid tank 1 through a fixing bracket 16. The electromagnet 14 and the suction block 15 face each other. The spring is sleeved outside the push rod 12, and both ends of the spring are fixedly connected to the top of the soap liquid tank 1 and the extrusion plate 11 respectively. The external signal mechanism 6 is connected to the control circuit of the electromagnet 14. When the electromagnet 14 attracts the suction block 15, the extrusion plate 11 slides downward against the elastic force of the spring, and the soap liquid enters the dispensing pump 2 through the flexible connecting pipe 9 and the input pipe 3. When the electromagnet 14 and the suction block 15 are separated, the extrusion plate 11 slides upward under the action of the elastic force of the spring, and the soap liquid located in the dispensing pump 2 flows back into the soap liquid tank 1 again.

[0034] In this embodiment, through the arrangement of the electromagnet 14, the suction block 15 and the spring, the control of the downward or upward sliding of the extrusion plate 11 can be realized by using the suction force between the electromagnet 14 and the suction block 15 and the elastic force of the spring, so that the outflow or inflow of the soap liquid can be conveniently controlled. Furthermore, the excess soap liquid remaining in the dispensing pump 2 can be recovered after the soap liquid is used up, avoiding the waste of the soap liquid, and effectively preventing the residual soap liquid from affecting the next washing. Specifically, when the external signal mechanism 6 sends a signal to add soap liquid, the control circuit of the electromagnet 14 is closed, the electromagnet 14 is powered on and attracts the suction block 15 against the elastic force of the spring. At this time, the extrusion plate 11 slides downward, so that the soap liquid enters the dispensing pump 2 through the flexible connecting pipe 9 and the input pipe 3. When the external signal mechanism 6 sends a signal that the soap liquid addition is completed, the control circuit of the electromagnet 14 is disconnected, the electromagnet 14 loses power, the spring returns to its original length, and the extrusion plate 11 slides upward under the action of the elastic force of the spring against the atmospheric pressure in the soap liquid tank 1 above the extrusion plate 11. At this time, the pressure in the space below the extrusion plate 11 for containing the soap liquid decreases to form a certain negative pressure, so that the remaining soap liquid in the dispensing pump 2 flows back to the soap liquid tank 1 through the input pipe 3 and the flexible connecting pipe 9.

[0035] In the present utility model, preferably, as Figure 1 , Figure 2 shown, the storage frame includes a soap liquid tank support frame 17, a dispensing pump mounting bracket 18 and a visible window 19. The visible window 19, the soap liquid tank support frame 17 and the dispensing pump mounting bracket 18 are installed in sequence. The visible window 19 and the soap liquid tank support frame 17 face each other. The visible window 19 is installed on one side close to the surface of the drying cabinet 7.

[0036] In this embodiment, through the arrangement of the soap liquid tank support frame 17, the dispensing pump mounting bracket 18 and the visible window 19, the installation and fixation of the soap liquid tank 1 and the dispensing pump 2 can be facilitated, and at the same time, it is convenient to observe the storage amount of the soap liquid in the soap liquid tank 1 for timely replenishment.

[0037] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0038] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A soap liquid automatic feeding device for a commercial washing and drying machine, comprising a storage frame, a plurality of soap liquid tanks (1) containing different soap liquids, and a plurality of dispensing pumps (2), wherein the plurality of soap liquid tanks (1) correspond to the plurality of dispensing pumps (2) one by one, the soap liquid tanks (1) and the dispensing pumps (2) are both installed in the storage frame, the soap liquid tank (1) is connected to the inlet of the dispensing pump (2) through an input pipe (3), and the outlet of the dispensing pump (2) is connected to the washing device (5) of the commercial washing and drying machine through an output pipe (4), characterized in that: The invention also comprises an external signal mechanism (6), the storage frame is installed in a drying cabinet (7) of a commercial washing and drying machine, the soap liquid tank (1) is provided with a driving mechanism, the external signal mechanism (6) is respectively connected to a plurality of driving mechanisms, a plurality of dispensing pumps (2) and a washing device (5), and the external signal mechanism (6) controls the driving mechanism to convey a corresponding type of soap liquid to a corresponding dispensing pump (2) through a washing program of the washing device (5), and conveys a corresponding amount of soap liquid to the washing device (5) through the dispensing pump (2).

2. The automatic soap liquid feeding device for a commercial washing and drying machine according to claim 1, characterized in that: The top of the soap liquid tank (1) is provided with a liquid filling hole, a rubber plug (8) is provided in the liquid filling hole, a flexible connecting tube (9) is installed on the rubber plug (8), the input tube (3) is detachably connected to the flexible connecting tube (9), and the flexible connecting tube (9) extends to the bottom of the soap liquid tank (1).

3. The automatic soap liquid feeding device for a commercial washing and drying machine according to claim 2, characterized in that: One end of the flexible connecting tube (9) located at the bottom of the soap liquid tank (1) is provided with a filter suction head (10).

4. The automatic soap liquid feeding device for a commercial washing and drying machine according to claim 3, characterized in that: The driving mechanism comprises an extrusion plate (11), a push rod (12), a control assembly and a one-way valve (13); the extrusion plate (11) is installed in the soap liquid tank (1) and is sealed and slidably connected to the soap liquid tank (1); a through hole matching the flexible connecting tube (9) is provided on the extrusion plate (11); the flexible connecting tube (9) passes through the through hole; a connecting hole is also provided on the top of the soap liquid tank (1); the control assembly is connected to the external signal mechanism (6); the push rod (12) is sealed and slidably connected to the connecting hole under the action of the control assembly; one end of the push rod (12) is fixedly connected to the extrusion plate (11) and the other end extends out of the soap liquid tank (1); the one-way valve (13) is installed on the rubber plug (8), and the opening direction of the one-way valve (13) is from the outside to the inside of the soap liquid tank (1).

5. The automatic soap liquid feeding device for a commercial washing and drying machine according to claim 4, characterized in that: The control assembly comprises an electromagnet (14), a suction block (15) and a spring. The electromagnet (14) is fixedly mounted on the top of the soap tank (1). The suction block (15) is fixedly connected to the end of the push rod (12) located outside the soap tank (1) through a fixing frame (16). The electromagnet (14) and the suction block (15) are directly opposite to each other. The spring is sleeved outside the push rod (12), and the two ends of the spring are respectively fixedly connected to the top of the soap tank (1) and the extrusion plate (11). The signal mechanism (6) is connected to the control circuit of the electromagnet (14). When the electromagnet (14) and the suction block (15) are attracted, the squeezing plate (11) overcomes the elastic force of the spring and slides downward, and the soap liquid enters the dispensing pump (2) through the flexible connecting pipe (9) and the input pipe (3). When the electromagnet (14) and the suction block (15) are separated, the squeezing plate (11) slides upward under the elastic force of the spring, and the soap liquid in the dispensing pump (2) flows back into the soap liquid tank (1).

6. The automatic soap liquid feeding device for a commercial washing and drying machine according to any one of claims 1 to 5, characterized in that: The storage frame comprises a soap tank support frame (17), a dispensing pump mounting frame (18) and a visible window (19); the visible window (19), the soap tank support frame (17) and the dispensing pump mounting frame (18) are installed in sequence; the visible window (19) and the soap tank support frame (17) are directly opposite to each other; and the visible window (19) is installed on a side of the drying cabinet (7) close to the surface.

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