Small gas-liquid suction device

Abstract

The utility model relates to the technical field of sanitary cleaning equipment, in particular to a small gas-liquid suction device which comprises a shell, a gas pump, a water pump and a driver. The air pump is installed on the shell, an air inlet cavity, an exhaust cavity and an air suction cavity are formed in the air pump, the air inlet cavity and the exhaust cavity are communicated with the air suction cavity, and first one-way valves are arranged at the communication positions; the air pump is provided with an air exhaust piece which moves to change the air pressure in the air exhaust cavity. The water pump is installed on the shell, a liquid inlet cavity, a liquid discharging cavity and a liquid pumping cavity are formed in the water pump, the liquid inlet cavity and the liquid discharging cavity are communicated with the liquid pumping cavity, and second one-way valves are arranged at the communication positions; the water pump is provided with a water pumping part which moves to change the air pressure in the liquid pumping cavity; the driver is installed on the shell and used for driving the air exhaust piece and the water pumping piece to move at the same time. The liquid pumping mechanism solves the problems that an existing liquid pumping mechanism is complex in structure, high in failure rate and large in size, and consequently a hand washing machine occupies too much space.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary cleaning equipment, in particular to a small gas-liquid suction device. Background Art

[0002] Hand sanitizer is a washing device that people often use in their daily lives and is usually placed in kitchens, bathrooms, etc. Hand sanitizer is generally stored in a container and is pressed out of the container by pressing a pressing device set on the top of the container. When washing hands, the pressed hand sanitizer is usually applied to the part to be washed, rubbed repeatedly until foaming, and then rinsed with tap water.

[0003] However, there are several disadvantages in using the above method to wash hands. First, the method of pressing the liquid out makes it difficult to control the amount of hand sanitizer used. Sometimes the amount pressed is too much, resulting in a waste of hand sanitizer, and sometimes the amount pressed is too little, thus failing to achieve the purpose of sterilization. In addition, when manually pressing the hand sanitizer, the bacteria and dirt on the hands may dirty the hand sanitizer container.

[0004] In order to overcome this defect, a hand-washing machine was born. Referring to the utility model patent with publication number CN217013761U, there is an existing hand-washing machine. When pumping out liquid, this kind of hand-washing machine usually pumps out in the form of foam, which not only saves the amount of hand sanitizer, but also has a more delicate texture than the original liquid pumping, which can give users a better experience. However, the structure of the pumping mechanism used to mix hand sanitizer and gas to form bubbles in the existing hand-washing machine is relatively complex, not only has a high failure rate, but also has a large volume, resulting in the hand-washing machine taking up too much space.

[0005] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0006] The utility model solves the problem that the pump mechanism for mixing hand soap and gas to form bubbles in the existing hand washing machine is relatively complicated in structure, has a high failure rate and is large in size, resulting in the hand washing machine taking up too much space.

[0007] To achieve the above object, the utility model provides a small gas-liquid suction device, including a housing, an air pump, a water pump and a driver, wherein:

[0008] The air pump is mounted on the housing, and is provided with an air inlet cavity, an air outlet cavity and an air extraction cavity. The air inlet cavity and the air outlet cavity are respectively connected to the air extraction cavity, and a first one-way valve is provided at each of the connecting points; the air pump is provided with an air extraction member that changes the air pressure inside the air extraction cavity by moving;

[0009] The water pump is mounted on the housing, and is provided with a liquid inlet chamber, a liquid discharge chamber and a liquid extraction chamber. The liquid inlet chamber and the liquid discharge chamber are respectively connected to the liquid extraction chamber, and a second one-way valve is provided at each of the connecting points; the water pump is provided with a water extraction member that changes the internal air pressure of the liquid extraction chamber by moving;

[0010] The driver is mounted on the housing and is used for driving the air pumping member and the water pumping member to move simultaneously.

[0011] More specifically, the output end of the driver is fixedly connected to a crankshaft, and the air pumping member and the water pumping member are both rotatably connected to the eccentric section of the crankshaft.

[0012] More specifically, the water pump includes a water pump body, which is fixedly connected to the outer shell, and the liquid inlet chamber and the liquid discharge chamber are both arranged on the water pump body; the pumping component includes a pumping plug and a pumping connecting rod, and the pumping plug is fixedly connected to the water pump body, and its inner cavity forms the pumping chamber, one end of the pumping connecting rod is fixedly connected to the pumping plug, and the other end is connected to the output end of the driver.

[0013] More specifically, the water pump body includes a water pump cover, a water pump bracket and a waterproof rubber pad; the water pump cover is fixedly connected to the outer shell, and a first pipe connection port and a second pipe connection port are provided on the water pump cover; the water pump bracket is installed on the water pump cover, and a first through hole and a second through hole are provided on the water pump bracket, and two first one-way valves are respectively provided at the first through hole and the second through hole; the waterproof rubber pad is padded between the water pump bracket and the water pump cover, the liquid inlet cavity and the liquid discharge cavity are both provided on the waterproof rubber pad, the liquid inlet cavity is connected with the first through hole and the first pipe connection port, and the liquid discharge cavity is connected with the second through hole and the second pipe connection port; the water pump plug is fixedly connected to the water pump bracket, and its inner cavity is connected with the first through hole and the second through hole.

[0014] More specifically, the first one-way valve is an umbrella valve, and the two umbrella valves are arranged in opposite directions and cover the first through hole and the second through hole respectively.

[0015] More specifically, the air pump includes an air pump body, which is fixedly connected to the outer shell, and the air inlet chamber and the exhaust chamber are both arranged on the air pump body; the vacuum component includes a vacuum plug and a vacuum connecting rod, the vacuum plug is fixedly connected to the air pump body, and its inner cavity forms the vacuum chamber, one end of the vacuum connecting rod is fixedly connected to the vacuum plug, and the other end is connected to the output end of the driver.

[0016] More specifically, the water pump body includes an air pump cover, an air pump bracket and an annular sealing gasket; the air pump cover is fixedly connected to the air pump bracket, and a third pipe connection port and a fourth pipe connection port are provided on the air pump cover; the air pump bracket is fixedly connected to the air pump cover, and a third through hole and a fourth through hole are provided on the air pump bracket, and two of the second one-way valves are respectively provided at the third through hole and the fourth through hole, and a protrusion is also provided on the air pump bracket, and the protrusion protrudes out of the third pipe connection port, and the air intake cavity is arranged inside the protrusion and is connected with the third through hole; the annular sealing gasket is arranged between the air pump cover and the air pump bracket, and the exhaust cavity is formed inside the annular sealing gasket, and the exhaust cavity is connected with both the fourth through hole and the fourth pipe connection port; the air suction plug is fixedly connected to the air pump bracket, and its inner cavity is connected with both the third through hole and the fourth through hole.

[0017] More specifically, the second one-way valve includes a valve film, one side of the valve film is fixedly connected to the air pump bracket, and the other side corresponds to covering the third through hole or the fourth through hole.

[0018] The technical effects of a small gas-liquid suction device involved in the utility model are:

[0019] The present application uses a driver to control the simultaneous movement of the air extraction member and the water extraction member, so that the air extraction member drives the air pump to start to extract air, and the water extraction member drives the water pump to start to extract hand sanitizer, thereby achieving gas-liquid mixing, preparing foam, and outputting it from the hand washing machine. The design of the present application makes the structure of the small gas-liquid suction device simple and compact, not only with a low failure rate, but also relatively small overall. The volume of the hand washing machine using the small gas-liquid suction device can be reduced accordingly, that is, the space occupied by the hand washing machine is reduced, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a small gas-liquid suction device involved in the utility model;

[0021] Figure 2 This is a schematic diagram of the coordination between the driver, the water pump and the air pump in a small gas-liquid suction device involved in the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of a water pump in a small gas-liquid suction device involved in the utility model;

[0023] Figure 4 It is a cross-sectional schematic diagram of an air pump in a small-sized gas-liquid suction device involved in the utility model;

[0024] Figure 5 This is a structural exploded view of a small-sized gas-liquid suction device involved in the utility model;

[0025] Figure 6 This is a structural exploded view of a small-sized gas-liquid suction device according to the utility model from another perspective;

[0026] Figure 7 This is a schematic structural diagram of a water pump bracket in a small gas-liquid suction device involved in the utility model;

[0027] Figure 8 The utility model is a schematic structural diagram of an air pump bracket in a small-sized air-liquid suction device.

[0028] Markings in the figure:

[0029] 1. Shell; 2. Air pump; 3. Water pump; 4. Driver;

[0030] 21. air inlet cavity; 22. exhaust cavity; 23. air extraction cavity; 24. first one-way valve; 241. valve film; 242. valve rubber plug; 25. air extraction soft plug; 26. air extraction connecting rod; 27. air pump cover; 271. third pipe connection port; 272. fourth pipe connection port; 28. air pump bracket; 281. third through hole; 282. fourth through hole; 283. raised portion; 29. ​​annular sealing gasket;

[0031] 31. Liquid inlet cavity; 32. Liquid discharge cavity; 33. Liquid extraction cavity; 34. Second one-way valve; 35. Water extraction plug; 36. Water extraction connecting rod; 37. Water pump cover; 371. First pipe connection port; 372. Second pipe connection port; 38. Water pump bracket; 381. First through hole; 382. Second through hole; 39. Waterproof rubber pad;

[0032] 41. Crankshaft. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element at the same time; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] In order to more clearly illustrate the technical solution of the utility model, a preferred embodiment is provided below. Figures 1 to 8 , a small gas-liquid suction device, comprising a housing 1, an air pump 2, a water pump 3 and a driver 4, wherein:

[0038] The air pump 2 is mounted on the housing 1. An air inlet chamber 21, an air outlet chamber 22 and an air extraction chamber 23 are provided in the air pump 2. The air inlet chamber 21 and the air outlet chamber 22 are respectively connected to the air extraction chamber 23, and a first one-way valve 24 is provided at each of the connecting points. The air pump 2 is provided with an air extraction member that changes the internal air pressure of the air extraction chamber 23 by moving.

[0039] The water pump 3 is mounted on the housing 1. The water pump 3 is provided with a liquid inlet chamber 31, a liquid discharge chamber 32 and a liquid extraction chamber 33. The liquid inlet chamber 31 and the liquid discharge chamber 32 are respectively connected to the liquid extraction chamber 33, and a second one-way valve 34 is provided at each of the connecting points. The water pump 3 is provided with a water extraction member that changes the internal air pressure of the liquid extraction chamber 33 by moving.

[0040] The driver 4 is mounted on the housing 1 and is used to drive the air pumping member and the water pumping member to move simultaneously.

[0041] Compared with the prior art, the small-sized gas-liquid suction device involved in the utility model is different in that the present application utilizes a driver 4 to control the simultaneous movement of the air suction member and the water suction member. When the air suction member moves, the air pressure inside the air suction chamber 23 changes, and under the action of the first one-way valve 24, the gas will enter along the air inlet chamber 21 and pass out along the exhaust chamber 22, so that the gas is obtained in the gas-liquid mixing chamber of the hand washer. When the water suction member moves, the air pressure inside the liquid suction chamber 33 changes, and under the action of the second one-way valve 34, the hand soap will enter along the liquid inlet chamber 31 and pass out along the liquid discharge chamber 32, so that the hand soap is obtained in the gas-liquid mixing chamber of the hand washer. Since the gas and hand soap are simultaneously input into the gas-liquid mixing chamber, the two will mix to form foam, and finally output to the outside. By adopting the design of the present application, the structure of the small gas-liquid suction device is streamlined and compact, not only with a low failure rate, but also relatively small overall. The volume of a hand washing machine using the small gas-liquid suction device can be reduced accordingly, that is, the space occupied by the hand washing machine is reduced, making it more practical.

[0042] In this embodiment, the output end of the driver 4 is fixedly connected to the crankshaft 41, and the air pumping member and the water pumping member are both rotatably connected to the eccentric section of the crankshaft 41. In actual application, the driver 4 drives the crankshaft 41 to rotate, and the eccentric section of the crankshaft 41 can drive the air pumping member and the water pumping member to move, thereby realizing the action of air pump 2 pumping air and water pump 3 pumping water.

[0043] In this embodiment, the water pump 3 includes a water pump body, which is fixedly connected to the housing 1, and the liquid inlet cavity 31 and the liquid discharge cavity 32 are both arranged on the water pump body; the pumping member includes a pumping plug 35 and a pumping connecting rod 36, the pumping plug 35 is fixedly connected to the water pump body, and its inner cavity forms a pumping cavity 33, one end of the pumping connecting rod 36 is fixedly connected to the pumping plug 35, and the other end is connected to the output end of the driver 4. In actual application, the driver 4 drives the pumping connecting rod 36 to move, and uses the pumping connecting rod 36 to control the pumping plug 35 to produce deformation, so as to achieve the effect of changing the internal air pressure of the pumping cavity 33.

[0044] In this embodiment, the water pump body includes a water pump cover 37, a water pump bracket 38 and a waterproof rubber pad 39; the water pump cover 37 is fixedly connected to the housing 1, and the water pump cover 37 is provided with a first pipe connection port 371 and a second pipe connection port 372; the water pump bracket 38 is installed on the water pump cover 37, and the water pump bracket 38 is provided with a first through hole 381 and a second through hole 382, ​​and two first one-way valves 24 are respectively provided at the first through hole 381 and the second through hole 382; the waterproof rubber pad 39 is padded between the water pump bracket 38 and the water pump cover 37, the liquid inlet cavity 31 and the liquid discharge cavity 32 are both provided on the waterproof rubber pad 39, the liquid inlet cavity 31 is connected to the first through hole 381 and the first pipe connection port 371, and the liquid discharge cavity 32 is connected to the second through hole 382 and the second pipe connection port 372; the water pumping soft plug 35 is fixedly connected to the water pump bracket 38, and its inner cavity is connected to the first through hole 381 and the second through hole 382. Preferably, the first one-way valve 24 is an umbrella valve, and the two umbrella valves are arranged in opposite directions and cover the first through hole 381 and the second through hole 382 respectively.

[0045] The detailed working process of the water pump 3 is as follows: when the pumping connecting rod 36 pulls the pumping plug 35 outward to increase the space of the pumping chamber 33, the water pump 3 is in a pumping state. At this time, the umbrella valve at the first through hole 381 is in an open state under the action of pressure, and the umbrella valve at the second through hole 382 is in a closed state under the action of pressure, so that the hand soap can enter the pumping chamber 33 from the liquid inlet chamber 31 and will not enter the liquid discharge chamber 32. When the pumping connecting rod 36 pushes the pumping plug 35 inward to reduce the space of the pumping chamber 33, the water pump 3 is in a liquid discharge state. At this time, the states of the two umbrella valves are opposite to the aforementioned state, and the hand soap in the pumping chamber 33 will pass into the gas-liquid mixing chamber of the hand washing machine along the liquid discharge chamber 32.

[0046] In this embodiment, the air pump 2 includes an air pump body, which is fixedly connected to the housing 1, and the air inlet cavity 21 and the air exhaust cavity 22 are both arranged on the air pump body; the air pumping member includes an air pumping plug 25 and an air pumping connecting rod 26, the air pumping plug 25 is fixedly connected to the air pump body, and its inner cavity forms an air pumping cavity 23, and one end of the air pumping connecting rod 26 is fixedly connected to the air pumping plug 25, and the other end is connected to the output end of the driver 4. In actual application, the driver 4 drives the air pumping connecting rod 26 to move, and uses the air pumping connecting rod 26 to control the air pumping plug 25 to produce deformation, so as to achieve the effect of changing the internal air pressure of the air pumping cavity 23.

[0047] In this embodiment, the water pump body includes an air pump cover 27, an air pump bracket 28 and an annular sealing gasket 29; the air pump cover 27 is fixedly connected to the air pump bracket 28, and the air pump cover 27 is provided with a third pipe port 271 and a fourth pipe port 272; the air pump bracket 28 is fixedly connected to the air pump cover 27, and the air pump bracket 28 is provided with a third through hole 281 and a fourth through hole 282, two second one-way valves 34 are respectively provided at the third through hole 281 and the fourth through hole 282, and the air pump bracket 28 is also provided with a A protrusion 283 is provided, and the protrusion 283 protrudes to the outside of the third pipe port 271. The air inlet cavity 21 is arranged inside the protrusion 283 and is connected with the third through hole 281; the annular sealing gasket 29 is arranged between the air pump cover 27 and the air pump bracket 28, and an exhaust cavity 22 is formed inside it, and the exhaust cavity 22 is connected with the fourth through hole 282 and the fourth pipe port 272; the air suction plug 25 is fixedly connected to the air pump bracket 28, and its inner cavity is connected with the third through hole 281 and the fourth through hole 282.

[0048] Preferably, the second one-way valve 34 includes a valve film 241, one side of the valve film 241 is fixedly connected to the air pump bracket 28, and the other side corresponds to blocking the third through hole 281 or the fourth through hole 282. Specifically, the air pump bracket 28 is provided with a receiving hole at a position corresponding to the third through hole 281 and the fourth through hole 282, and the valve film 241 is arranged in the receiving hole. The receiving hole is also provided with a valve plug 242, and the valve plug 242 cooperates with the air pump bracket 28 to clamp and fix the valve film 241. It should be understood that the second one-way valve 34 can also be an umbrella valve.

[0049] The detailed working process of the air pump 2 is as follows: when the air pumping connecting rod 26 pulls the air pumping plug 25 outward to increase the space of the air pumping chamber 23, the air pump 2 is in an air pumping state. At this time, the valve film 241 at the third through hole 281 will be in an open state under the action of pressure, and the valve film 241 at the fourth through hole 282 will be in a closed state under the action of pressure, so that the gas can enter the air pumping chamber 23 from the air inlet chamber 21 and will not enter the exhaust chamber 22. When the air pumping connecting rod 26 pushes the air pumping plug 25 inward to reduce the space of the air pumping chamber 23, the air pump 2 is in an exhaust state. At this time, the state of the valve film 241 is opposite to the aforementioned state, and the hand sanitizer in the air pumping chamber 23 will pass into the gas-liquid mixing chamber of the hand washing machine along the exhaust chamber 22.

[0050] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A small gas-liquid suction device, characterized in that: It consists of a housing, an air pump, a water pump and a driver, wherein: The air pump is mounted on the housing, and is provided with an air inlet cavity, an air outlet cavity and an air extraction cavity. The air inlet cavity and the air outlet cavity are respectively connected to the air extraction cavity, and a first one-way valve is provided at each of the connecting points; the air pump is provided with an air extraction member that changes the air pressure inside the air extraction cavity by moving; The water pump is mounted on the housing, and is provided with a liquid inlet chamber, a liquid discharge chamber and a liquid extraction chamber. The liquid inlet chamber and the liquid discharge chamber are respectively connected to the liquid extraction chamber, and a second one-way valve is provided at each of the connecting points; the water pump is provided with a water extraction member that changes the internal air pressure of the liquid extraction chamber by moving; The driver is mounted on the housing and is used for driving the air pumping member and the water pumping member to move simultaneously.

2. A small gas-liquid suction device according to claim 1, characterized in that: The output end of the driver is fixedly connected to a crankshaft, and the air pumping member and the water pumping member are both rotatably connected to the eccentric section of the crankshaft.

3. A small gas-liquid suction device according to claim 1 or 2, characterized in that: The water pump includes a water pump body, which is fixedly connected to the shell, and the liquid inlet chamber and the liquid discharge chamber are both arranged on the water pump body; the pumping component includes a pumping plug and a pumping connecting rod, the pumping plug is fixedly connected to the water pump body, and its inner cavity forms the pumping chamber, one end of the pumping connecting rod is fixedly connected to the pumping plug, and the other end is connected to the output end of the driver.

4. A small gas-liquid suction device according to claim 3, characterized in that: The water pump body includes a water pump cover, a water pump bracket and a waterproof rubber pad; the water pump cover is fixedly connected to the shell, and is provided with a first pipe connection port and a second pipe connection port; the water pump bracket is installed on the water pump cover, and is provided with a first through hole and a second through hole, and two first one-way valves are respectively arranged at the first through hole and the second through hole; the waterproof rubber pad is padded between the water pump bracket and the water pump cover, the liquid inlet cavity and the liquid discharge cavity are both arranged on the waterproof rubber pad, the liquid inlet cavity is communicated with the first through hole and the first pipe connection port, and the liquid discharge cavity is communicated with the second through hole and the second pipe connection port; the water pump plug is fixedly connected to the water pump bracket, and its inner cavity is communicated with the first through hole and the second through hole.

5. A small gas-liquid suction device according to claim 4, characterized in that: The first one-way valve is an umbrella valve, and the two umbrella valves are arranged in opposite directions and cover the first through hole and the second through hole respectively.

6. A small gas-liquid suction device according to claim 1 or 2, characterized in that: The air pump includes an air pump body, which is fixedly connected to the outer shell, and the air inlet chamber and the exhaust chamber are both arranged on the air pump body; the air suction component includes an air suction plug and an air suction connecting rod, the air suction plug is fixedly connected to the air pump body, and its inner cavity forms the air suction chamber, one end of the air suction connecting rod is fixedly connected to the air suction plug, and the other end is connected to the output end of the driver.

7. A small gas-liquid suction device according to claim 6, characterized in that: The water pump body comprises an air pump cover, an air pump bracket and an annular sealing gasket; the air pump cover is fixedly connected to the air pump bracket, and a third pipe connection port and a fourth pipe connection port are arranged on the air pump cover; the air pump bracket is fixedly connected to the air pump cover, and a third through hole and a fourth through hole are arranged on the air pump bracket, and two second one-way valves are respectively arranged at the third through hole and the fourth through hole, and a protrusion is also arranged on the air pump bracket, and the protrusion protrudes to the outside of the third pipe connection port, and the air intake cavity is arranged inside the protrusion and is connected with the third through hole; the annular sealing gasket is arranged between the air pump cover and the air pump bracket, and the exhaust cavity is formed inside the annular sealing gasket, and the exhaust cavity is connected with the fourth through hole and the fourth pipe connection port; the air suction soft plug is fixedly connected to the air pump bracket, and its inner cavity is connected with the third through hole and the fourth through hole.

8. A small gas-liquid suction device according to claim 7, characterized in that: The second one-way valve comprises a valve film, one side of the valve film is fixedly connected to the air pump bracket, and the other side of the valve film correspondingly blocks the third through hole or the fourth through hole.

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