Automatic foaming device

Abstract

The present invention relates to the technical field of toilet odor prevention and splash prevention, and is specifically an automatic foaming device, comprising a box body, a partition is arranged in the box body, and the partition divides the internal space of the box body into a foaming chamber, an air source chamber and a water injection chamber, wherein the air source chamber is sealed and connected to the water injection chamber, the foaming chamber is connected to the water injection chamber, and the foaming chamber is arranged at the bottom of the water injection chamber; an air pump is arranged in the air source chamber, a foamer is arranged in the foaming chamber, the air pump is connected to the foamer through an air pipe, and a foaming pipe is arranged on the side wall of the box body, one end of the foaming pipe is connected to the outside of the box body, and the other end is connected to the foaming chamber. The present invention can be applied to a toilet or a squat toilet. When in use, the device is started, and the foam generated in a short time fills and covers the toilet bowl. On the one hand, the filled foam completely covers the accumulated water in the toilet bowl, solving the problem of splashing of accumulated water; on the other hand, according to the composition of the foam, the foam can also play the role of odor prevention, sterilization and cleaning of the toilet bowl.

Description

Technical Field

[0001] The invention relates to the technical field of toilet deodorization and splash prevention, in particular to an automatic foaming device. Background Art

[0002] Toilets or squat toilets are important and indispensable tools in people's lives and are widely used in bathrooms in homes, hotels, office buildings, etc. When users urinate or defecate, especially when defecating, they will stay on the toilet or squat toilet for a certain period of time, and the smell of feces will fill the entire toilet space, making it unbearable; in addition, when defecating, feces are easy to adhere to the side walls of the toilet or squat toilet, and it is difficult to flush it away with water. After the user leaves, it will still emit odor, causing environmental pollution and inconvenience for the next user; in addition, toilets are designed with a return water bend so that a certain amount of water is always accumulated in the toilet. The accumulated water can play a role in venting the odor, but when defecating, the accumulated water will splash up and stain the buttocks, affecting the physical and mental health of the user. Summary of the invention

[0003] In order to solve the problems in the above-mentioned background technology, the present invention provides an automatic foaming device, which can be used on a toilet or a squat toilet. When in use, the device is started, and a large amount of foam is generated at the foam outlet in a short time, which quickly fills the toilet bowl. On the one hand, the filled foam completely covers the accumulated water in the toilet bowl, solving the problem of splashing of accumulated water; on the other hand, the foam can also play a role in deodorization, sterilization and cleaning of the toilet bowl.

[0004] The present invention adopts the following technical scheme: an automatic foaming device, comprising a box body, a partition is arranged in the box body, and the partition divides the internal space of the box body into a foaming chamber, an air source chamber and a water injection chamber, wherein:

[0005] The air source chamber is sealed and connected to the water injection chamber, the foaming chamber is connected to the water injection chamber, and the foaming chamber is arranged at the bottom of the water injection chamber; an air pump is arranged in the air source chamber, a foamer is arranged in the foaming chamber, the air pump is connected to the foamer through an air pipe, a bubble outlet pipe is arranged on the side wall of the box body, one end of the bubble outlet pipe is connected to the outside of the box body, and the other end is connected to the foaming chamber.

[0006] Furthermore, the foaming chamber is divided from the water injection chamber by a foaming chamber partition, a foaming agent filling port is provided on the foaming chamber partition or between the foaming chamber partition and the box body, and the air pipe passes through the foaming agent filling port and is connected to the foamer.

[0007] The preferred technical solution is that at least one foaming agent filling port is provided on the foaming chamber partition, the lowest position of the foaming pipe is higher than the highest position of the foaming agent filling port, and a valve is provided on the foaming pipe.

[0008] The preferred technical solution is that a guide vertical pipe is fixed in the foaming chamber, the upper opening of the guide vertical pipe is connected to the foaming chamber, and the upper opening position of the guide vertical pipe is higher than the position of the foaming agent filling port, the bubble outlet pipe is connected to the guide vertical pipe, and a valve is provided on the bubble outlet pipe.

[0009] The preferred technical solution is that the foaming chamber partition is an arc-shaped plate, one end of which is located above the air pipe and forms a foaming agent filling port with the lower end surface of the box body, and the other end of the arc-shaped plate is fixedly arranged on the side wall of the box body. A guide vertical plate is also provided in the foaming chamber, which divides the foaming chamber into a foaming chamber and a foaming outlet chamber that are interconnected, the foaming chamber is connected to the foaming agent filling port, and the foaming outlet chamber is connected to the bubble outlet pipe.

[0010] Furthermore, a bubble outlet guide plate is provided in the bubble outlet chamber, one end of the bubble outlet guide plate is movably connected to the guide vertical plate, and the other end of the bubble outlet guide plate is movably connected to the lower part of the bubble outlet pipe.

[0011] Furthermore, a water inlet is provided on the water injection cavity, and a water adding guide plate is provided at the lower end of the water adding inlet. The water adding guide plate is located in the water injection cavity and is tilted and fixedly arranged at the lower end of the water adding inlet.

[0012] Furthermore, an air intake chamber is provided at the connection between the air source chamber and the water injection chamber. The air intake chamber is sealed and connected to the water injection chamber. An air intake baffle is provided in the air intake chamber. One end of the air intake baffle is connected to the bottom plate of the air source chamber, and the other end is connected to the side wall of the box. The air intake baffle divides the air intake chamber into an air intake chamber and a detection chamber. The air intake chamber is connected to the air source chamber and the outside world, and the detection chamber is connected to the outside world.

[0013] Furthermore, a check valve for preventing foam from flowing back is provided on the air pipe, and the check valve is arranged below the air inlet cavity.

[0014] Furthermore, a timer and a battery are provided in the air source cavity, and the timer and the air pump are electrically connected to the battery respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The foaming chamber, air source chamber and water injection chamber of the automatic foaming device of the present invention are integrated in a box body, which has a simple and compact structure and low cost. The generated foam quickly fills the toilet bowl, greatly reducing the adhesion of excrement to the inner side of the toilet bowl, thereby ensuring the cleanliness of the toilet bowl.

[0017] (2) The foaming chamber of the automatic foaming device of the present invention is arranged at the bottom of the water injection chamber, and the foaming agent is added into the foaming chamber through the foaming agent filling port, so that a certain amount of foaming agent is always maintained in the foaming chamber. After ventilation, continuous foam can be generated, thereby achieving the purpose of long-term use.

[0018] (3) The automatic foaming device of the present invention is provided with an air intake chamber at the connection between the air source chamber and the water injection chamber. The air intake chamber is divided into an air intake chamber and a detection chamber by an air intake partition. The air intake chamber is connected to the air source chamber and is used to supply air to the air pump. The detection chamber is used to detect whether the water injection chamber is leaking, so as to prevent water from entering the air source chamber and affecting the electrical performance.

[0019] (4) The automatic foaming device of the present invention is used in a toilet, which can also solve the problem of splashing water and allow the user to maintain a pleasant mood when defecating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural diagram of Embodiment 1 of the automatic foaming device of the present invention;

[0022] Figure 2 This is a structural diagram of Embodiment 2 of the automatic foaming device of the present invention;

[0023] Figure 3 This is a structural diagram of Embodiment 3 of the automatic foaming device of the present invention;

[0024] Among them, 1-box body, 11-first side wall, 12-second side wall, 13-third side wall, 14-top wall of box body, 15-bottom wall of box body, 16-L-shaped partition, 2-foaming chamber, 21-foaming chamber partition, 22-foaming agent filling port, 23-guide vertical pipe, 24-guide vertical plate, 25-foaming chamber, 26-foaming chamber, 27-foaming guide plate, 3-gas source chamber, 31-horizontal partition Plate, 4-water injection chamber, 41-water inlet, 42-water adding guide plate, 5-air pump, 6-foamer, 7-air pipe, 8-bubble outlet pipe, 81-valve, 9-air inlet chamber, 91-air inlet baffle, 92-air inlet chamber, 93-detection chamber, 94-air inlet hole, 941-upper air inlet hole, 942-lower air vent, 10-check valve, 20-timer, 30-battery, 40-water stop line. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0026] like Figure 1 As shown, the embodiment 1 of the automatic foaming device of the present invention comprises a box body 1, a partition is arranged in the box body 1, and the partition divides the internal space of the box body 1 into a foaming chamber 2, an air source chamber 3 and a water injection chamber 4, wherein the air source chamber 3 is sealed and connected with the water injection chamber 4, the foaming chamber 2 is connected with the water injection chamber 4, and the foaming chamber 2 is arranged at the bottom of the water injection chamber 4; an air pump 5 is arranged in the air source chamber 3, and a foamer 6 is arranged in the foaming chamber 2, and the air pump 5 is connected with the foamer 6 through an air pipe 7, and a foaming pipe 8 is arranged on the side wall of the box body 1, and one end of the foaming pipe 8 is connected with the outside of the box body, and the other end is connected with the foaming chamber 2. There are multiple partitions in the present invention, and the specific shape of the partition is not limited. Partitions of any shape that can achieve the foaming purpose of the present invention belong to the protection scope of the present invention.

[0027] Specifically, Figure 1-3 As shown, the foaming chamber 2 is separated from the water injection chamber 4 by a foaming chamber partition 21 , a foaming agent filling port 22 is provided on the foaming chamber partition 21 or between the foaming chamber partition 21 and the box body 1 , and the air pipe 7 passes through the foaming agent filling port 22 and is connected to the foamer 6 .

[0028] Specifically, in the present embodiment, the box body 1 is in the shape of a cuboid or a cube, and includes a first side wall 11, a second side wall 12, a third side wall 13, a fourth side wall (arranged opposite to the third side wall 13, not shown in the figure), a bottom wall 15 and a top wall 14 of the box body. An L-shaped partition 16 is provided in the box body 1, one end of the L-shaped partition 16 is sealedly connected to the top wall 14 of the box body, and the other end is sealedly connected to the first side wall 11. The L-shaped partition 16 is sealedly connected to the first side wall 11, the third side wall 13, the fourth side wall and the top wall 14 of the box body to form an air source cavity 3 together. It can be known that the box body 1 of the present invention may also be in the shape of a circle, a square or other irregular shapes, and those skilled in the art may refer to the design, which all fall within the protection scope of the present invention.

[0029] Specifically, the foaming chamber partition 21 is an inclined plate, one end of the inclined plate is fixedly connected to the first side wall 11, and the other end is fixedly connected to the bottom wall 15 of the box body. The inclined plate and the first side wall 11, the third side wall 13, the fourth side wall and the bottom wall 15 of the box body together form a foaming chamber 2. It can be known here that the connection between the inclined plate and the first side wall 11, the third side wall 13, the fourth side wall and the bottom wall 15 of the box body are all sealed, and at least one foaming agent filling port 22 is opened on the inclined plate, the air pipe 7 passes through the foaming agent filling port 22 to be connected to the foamer 6, and the lowest position of the foaming agent filling port 22 is higher than the highest position of the foaming agent filling port 22, the purpose is to form a certain height difference between the foaming pipe 8 and the foaming agent filling port 22, on the one hand, to facilitate the collection of foam, on the other hand The space in the foaming chamber 2 that is higher than the foaming agent filling port 22 always maintains a certain pressure to prevent the foaming agent from directly flowing out of the foaming tube 8 and losing the effectiveness of the device, and a valve 81 is provided on the foaming tube 8. When water is injected into the water injection chamber 4, the valve 81 needs to be closed; when the device is working, the space below the foaming agent filling port 22 in the foaming chamber 2 is the foaming agent filling space, and the space above the foaming agent filling port 22 is the foaming space. The foaming space always maintains a certain pressure to prevent the foaming agent from directly flowing out of the foaming tube 8. It can be known that the shape of the foaming chamber partition 21 in this embodiment can also be made into other shapes, such as L-shaped plates or other irregularly shaped plates. As long as the same effect as the inclined plate can be achieved, it belongs to the protection scope of the present invention.

[0030] Specifically, an air intake chamber 9 is further provided at the connection between the air source chamber 3 and the water injection chamber 4. The air intake chamber 9 is sealed and connected to the water injection chamber 4. An air intake baffle 91 is provided in the air intake chamber 9. One end of the air intake baffle 91 is connected to the bottom plate of the air source chamber 3, and the other end is connected to the side wall of the box body 1. The air intake baffle 91 divides the air intake chamber 9 into an air intake chamber 92 and a detection chamber 93. The air intake chamber 92 is connected to the air source chamber 3 and the outside world, and the detection chamber 93 is connected to the outside world.

[0031] Specifically, in this embodiment, a horizontal partition 31 is provided in the air source chamber 3, one end of the horizontal partition 31 is sealed and connected to the first side wall 11, and the other end is sealed and connected to the vertical plate on the L-shaped partition 16. The horizontal partition 31 is sealed and connected to the L-shaped partition 16, the first side wall 11, the third side wall 13 and the fourth side wall to form an air intake chamber 9. An air intake partition 91 is also provided in the air intake chamber 9, one end of the air intake partition 91 is sealed and connected to the lower end surface of the horizontal partition 31, and the other end is sealed and connected to the first side wall 11. The air intake partition 91 divides the air intake chamber 9 into an air intake chamber 92 and a detection chamber 93 (see Figure 3), it can be known that, in this embodiment, the horizontal partition 31 is the bottom plate of the air source chamber 3, and the output end of the air pump 5 is sealed and connected to the horizontal partition 31 and the L-shaped partition 16 respectively through a sealing gasket. Of course, other sealing methods can be selected for sealing in this embodiment, as long as a sealed connection between the air pump 5 and the air pipe 7 can be achieved; specifically, an air inlet hole 94 is provided on the first side wall 11, and the air inlet partition 91 is fixed on the air inlet hole 94, and the air inlet hole 94 is divided into an upper air inlet hole 941 and a lower air vent 942, and the upper air inlet hole 941 is connected to the air source chamber 3.

[0032] In this embodiment, the upper air inlet hole 941 is connected to the air source chamber 3, so that the air source chamber 3 is connected to the outside air, providing a steady supply of gas for the air pump 5; in addition, during use, if liquid leakage occurs at the connection between the water injection chamber 4 and the air source chamber 3, the leaked liquid first enters the detection chamber 93 through the L-shaped partition 16, and flows out of the detection chamber 93 through the lower air vent 942, thereby preventing the leaked liquid from entering the air source chamber 3 above the air inlet chamber and affecting the electrical part of the device; at the same time, it also allows users to discover problems at the connection through the leaked liquid and replace parts in time.

[0033] Specifically, in this embodiment, a check valve 10 for preventing foam from flowing back is provided on the air pipe 7, and the check valve 10 is arranged below the air inlet chamber 9. In addition, a timer 20 and a battery 30 are provided in the air source chamber 3, the timer 20 and the air pump 5 are electrically connected to the battery 30 respectively, and a time switch is also provided on the outer wall of the air source chamber 3.

[0034] Specifically, in this embodiment, the water injection chamber 4 is provided with a water inlet 41, the water inlet 41 is located on the top wall 14 of the box body, and a water inlet guide plate 42 is provided at the lower end of the water inlet 41 (see Figure 3 The water adding guide plate 42 is located in the water injection chamber 4 and is fixedly and tilted at the lower end of the water adding port 41, and the tilting direction is toward the second side wall 12 of the box body; when adding water, the water flows into the water injection chamber 4 along the water adding guide plate 42 and the second side wall 12 in sequence. The setting of the water adding guide plate 42 makes the water flow more stable, which can avoid excessive bubbles generated during the water adding process from gushing out of the water adding port 41 and affecting the amount of water added.

[0035] Preferably, an infrared sensing device is also provided in the air source chamber 3 in this embodiment. When the user goes to the toilet, the infrared sensing device automatically senses the human body and releases foam. There is no need to press buttons every time to go to the toilet, which is more convenient to use.

[0036] In the specific implementation, the selected foaming agent should have a good foaming effect; preferably, it also has a sterilization and disinfection effect. Specifically, in some embodiments of the present invention, the foaming agent can be selected from detergents such as dishwashing liquid, hand soap, laundry detergent, etc., which are easy to buy and inexpensive on the market. The effect is significant and the cost is low, which is conducive to large-scale promotion and application.

[0037] The working principle of the present invention is as follows: before defecation, the timing switch is started, the air pump 5 starts working, and the gas is transported to the foamer 6 through the air pipe 7. The foamer 6 of the present invention can be a hollow entity with countless pores on the surface, or it can be made by wrapping the output end of the air pipe with silk cotton. The gas is finally ejected from the foamer 6, so that the foaming agent produces a large amount of foam. The foam rises in the foaming chamber 2 and then flows out through the bubble outlet pipe 8 into the toilet bowl. Since a timer 20 is provided in the air source chamber 3, the air pump 5 will work for a period of time. During the timing time, a large amount of foam enters the toilet bowl. After a certain timing time is reached, the air pump 5 stops working and foam is no longer generated. At this time, the amount of foam in the toilet bowl can fully play the role of deodorization, sterilization and cleaning of the toilet bowl; when the device has been used for a period of time, when the water level in the water injection chamber 4 is low, the valve 81 on the bubble outlet pipe 8 must be closed first, and then water is added to the water injection chamber 4 through the water inlet 41. After reaching a certain water level, stop adding water.

[0038] like Figure 2 As shown, it is the embodiment 2 of the automatic foaming device of the present invention. Different from the embodiment 1, the foaming chamber 2 in this embodiment is also fixedly provided with a guide vertical pipe 23, the lower end of the guide vertical pipe 23 is fixedly connected to the bottom wall 15 of the box body, the upper opening of the guide vertical pipe 23 is connected to the foaming chamber 2, and the upper opening position of the guide vertical pipe 23 is higher than the position of the foaming agent filling port 22, forming a certain height difference, which is convenient for collecting foam, and the foaming pipe 8 is connected with the guide vertical pipe 23, and the foaming pipe 8 is also provided with a valve 81. In this embodiment, by providing a guide vertical pipe 23 in the foaming chamber 2, the foam is guided to flow to the bubble pipe 8 through the guide vertical pipe 23. At this time, the bubble pipe 8 can be set at any position of the side wall of the box body, and there is no need to limit the relative position of the bubble pipe 8 and the foaming agent filling port 22, which reduces the installation requirements of the device on the toilet or squat toilet. The specific working principle of this embodiment 2 is the same as that of the embodiment 1, which will not be repeated here.

[0039] like Figure 3As shown, it is Example 3 of the automatic foaming device of the present invention. Different from Example 1 and Example 2, the foaming chamber partition plate 21 in this embodiment is an arc-shaped plate, one end of which is located above the air pipe 7. Specifically, as shown in the figure, the air pipe 7 includes a vertical tube and a horizontal tube that are interconnected, wherein the horizontal tube is located at the lower end of the vertical tube, one end of the arc-shaped plate in this embodiment is located above the horizontal tube, and a foaming agent filling port 22 is formed between the arc-shaped plate and the bottom wall 15 of the box (i.e., the lower end face of the box), and the other end of the arc-shaped plate is fixedly arranged on the side wall of the box. A guide vertical plate 24 is also provided in the foaming chamber 2, and the lower end of the guide vertical plate 24 is fixedly connected to the bottom wall 15 of the box, and a certain gap is left between the upper end of the guide vertical plate 24 and the arc-shaped plate. The guide vertical plate 24 divides the foaming chamber 2 into a foaming chamber 25 and a foaming chamber 26 that are interconnected, and the foaming chamber 25 is connected to the foaming agent filling port 22, and the foaming chamber 26 is connected to the foaming pipe 8. The arrangement of the foaming cavity 2 in this embodiment increases the foam collecting space, makes the foaming faster, and reduces the waiting time of the user when using the toilet.

[0040] Specifically, in this embodiment, the height of the guide vertical plate 24 is higher than the height of the foaming agent filling port 22, so that a certain foaming space is formed above the foaming chamber 25, and the generated foam enters the foaming chamber 26 through the gap between the guide vertical plate 24 and the curved plate, and then enters the toilet bowl through the foaming pipe 8. The foaming agent filling port 22 of this embodiment is arranged between the bottom wall 15 of the box body and the curved plate, so that the opening area of ​​the foaming agent filling port 22 is large and the position is low, so that the foaming agent in the water injection chamber 4 can be fully utilized for foaming. The guide vertical plate 24 is arranged to guide the foam into the foaming chamber 26 on the one hand, and to allow the foaming pipe 8 to be arranged at any position on the side wall of the foaming chamber 26 on the other hand.

[0041] Specifically, a bubble guide plate 27 is provided in the bubble chamber 26, one end of the bubble guide plate 27 is movably connected to the guide vertical plate 24, and the other end of the bubble guide plate 27 is movably connected to the bottom of the bubble pipe 8. By providing the bubble guide plate 27 in the bubble chamber 26, a large amount of foam passes through the bubble guide plate 27 and enters the bubble pipe, thereby preventing the foam from accumulating under the bubble pipe 8 and being unable to be discharged. The specific working principle of this embodiment 3 is the same as that of embodiment 1, and will not be repeated here.

[0042] Preferably, in this embodiment, a water stop line 40 is fixedly provided on the bubble guide plate 27, and the other end of the water stop line 40 passes through the water inlet 41 and is retained outside the box. When water needs to be added, water can be added by closing the valve 81 on the bubble tube 8 on the one hand; on the other hand, the water stop line 40 can be tightened to make the bubble guide plate 27 movably cover the bubble outlet of the first side wall 11 of the box, and then add water to the water injection chamber 4. It can be known that the present invention adopts the air pressure principle, and the water in the water injection chamber 4 does not flow out when the water inlet 41 is closed. The role of the bubble guide plate 27 is to guide the foam into the bubble tube 8, but its greater role is to play the role of the valve 81. When adding water, the water cover is opened to pull the water stop line 40, and the bubble guide plate 27 is lifted to block the bubble outlet, sealing the box space to prevent the added foaming agent from flowing out of the bubble tube 8.

[0043] It can be understood that the arrangement of the multiple foaming cavity partitions and the guide structures in the various embodiments of the present invention can be freely combined to produce a variety of methods, all of which fall within the protection scope of the present invention.

[0044] In summary, the foaming chamber 2, the air source chamber 3 and the water injection chamber 4 of the automatic foaming device of the present invention are integrated in a box body 1, which has a simple and compact structure and low cost. The generated foam quickly covers the toilet bowl. On the one hand, it completely covers the accumulated water in the toilet bowl and solves the problem of splashing of accumulated water. On the other hand, the foam also has the effect of deodorization and sterilization, and greatly reduces the adhesion of excrement to the inside of the toilet bowl, ensuring the cleanliness of the toilet bowl.

[0045] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An automatic foaming device, characterized in that: It comprises a box body, wherein a partition is arranged in the box body, and the partition divides the internal space of the box body into a foaming chamber, an air source chamber and a water injection chamber, wherein: The air source cavity is sealed and connected to the water injection cavity, the foaming cavity is connected to the water injection cavity, and the foaming cavity is arranged at the bottom of the water injection cavity; An air pump is provided in the air source cavity, a foamer is provided in the foaming cavity, the air pump is connected to the foamer through an air pipe, a foaming pipe is provided on the side wall of the box, one end of the foaming pipe is connected to the outside of the box, and the other end is connected to the foaming cavity; An air inlet chamber is also provided at the connection between the air source chamber and the water injection chamber, the air inlet chamber is sealed and connected to the water injection chamber, an air inlet baffle is provided in the air inlet chamber, one end of the air inlet baffle is connected to the bottom plate of the air source chamber, and the other end is connected to the side wall of the box body, the air inlet baffle divides the air inlet chamber into an air inlet chamber and a detection chamber, the air inlet chamber is connected to the air source chamber and the outside world, and the detection chamber is connected to the outside world; The box body includes a first side wall, which is provided with an air inlet hole. An air inlet baffle is fixed on the air inlet hole and divides the air inlet hole into an upper air inlet hole and a lower air vent hole. The upper air inlet hole is connected to the air source cavity, and the lower air vent hole is connected to the detection chamber.

2. The automatic foaming device according to claim 1, characterized in that: The partition includes a foaming chamber partition, the foaming chamber is divided from the water injection chamber by the foaming chamber partition, a foaming agent filling port is provided on the foaming chamber partition or between the foaming chamber partition and the box body, and the air pipe passes through the foaming agent filling port and is connected to the foamer.

3. The automatic foaming device according to claim 2, characterized in that: At least one foaming agent filling port is arranged on the foaming chamber partition, the lowest position of the foaming pipe is higher than the highest position of the foaming agent filling port, and a valve is arranged on the foaming pipe.

4. The automatic foaming device according to claim 2, characterized in that: A guide vertical pipe is fixedly provided in the foaming cavity, an upper opening of the guide vertical pipe is communicated with the foaming cavity, and a position of the upper opening of the guide vertical pipe is higher than a position of the foaming agent filling port, the bubble outlet pipe is through-connected with the guide vertical pipe, and a valve is provided on the bubble outlet pipe.

5. The automatic foaming device according to claim 2, characterized in that: The foaming chamber partition is an arc-shaped plate, one end of which is located above the air pipe and forms the foaming agent filling port together with the lower end surface of the box body, and the other end of the arc-shaped plate is fixedly arranged on the side wall of the box body. A guide vertical plate is also provided in the foaming chamber, and the guide vertical plate divides the foaming chamber into a foaming chamber and a foaming chamber that are interconnected. The foaming chamber is connected to the foaming agent filling port, and the foaming chamber is connected to the foaming pipe.

6. The automatic foaming device according to claim 5, characterized in that: A bubble outlet guide plate is provided in the bubble outlet chamber, one end of the bubble outlet guide plate is movably connected to the guide vertical plate, and the other end of the bubble outlet guide plate is movably connected to the lower side of the bubble outlet pipe.

7. The automatic foaming device according to claim 1, characterized in that: The water injection cavity is provided with a water inlet, and the lower end of the water inlet is provided with a water adding guide plate. The water adding guide plate is located in the water injection cavity and is tilted and fixedly arranged at the lower end of the water inlet.

8. The automatic foaming device according to claim 1, characterized in that: The air pipe is provided with a check valve for preventing foam from flowing back, and the check valve is arranged below the air inlet cavity.

9. The automatic foaming device according to claim 1, characterized in that: A timer and a battery are also arranged in the air source cavity, and the timer and the air pump are electrically connected to the battery respectively.

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