A cleaning apparatus

Abstract

The application discloses a cleaning device and relates to the technical field of floor cleaning devices, which comprises a negative pressure device and a cleaning host, the negative pressure device is communicated with the cleaning host through an air path connecting device, the air path connecting device comprises a main channel pipeline and at least two branch channel pipelines communicated with the main channel pipeline, the main channel pipeline is communicated with the negative pressure device, and the branch channel pipelines are communicated with the cleaning host. The air path connecting device provided with the main channel pipeline and the at least two branch channel pipelines is used for connecting the negative pressure device and the cleaning host, the airflow impact force of the airflow entering the airflow channel from bottom to top is dispersed, a buffer is provided for solid-liquid garbage before entering the main channel pipeline, the solid-liquid garbage is easy to fall back and is not easy to enter the air path connecting device, the air path connecting device is used to replace a traditional corrugated pipe structure, and problems, such as peculiar smell, caused by the accumulation and residue of the solid-liquid garbage in the pipeline are avoided.

Description

Technical Field

[0001] This invention relates to the field of floor cleaning equipment technology, and more particularly to a cleaning device. Background Technology

[0002] In recent years, floor cleaning equipment with vacuum cleaner functionality has become increasingly popular due to its advantages such as small size, strong suction, ease of movement, and integration of sweeping and cleaning. Typically, under the negative pressure system of a vacuum cleaner, the cleaning equipment sucks solid and liquid waste into the dustbin through an airflow channel. In existing technology, solid and liquid waste enters the connection point of the airflow channel from bottom to top under negative pressure. Traditional cleaning equipment often uses corrugated pipes or similar structures to achieve a flexible connection, resulting in solid and liquid waste remaining in the folds of the corrugated pipes, making cleaning difficult and, over time, leading to problems such as electrical circuit damage from moisture and foul odors from residual wastewater. Therefore, those skilled in the art are dedicated to developing a cleaning device that can solve the aforementioned problems. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is the problem of residual odor and circuit damage caused by wastewater being introduced into the airflow channel connection during the floor cleaning process of cleaning equipment. To achieve the above objective, the present invention provides a cleaning device.

[0004] The cleaning equipment includes a negative pressure device and a cleaning host. The negative pressure device and the cleaning host are connected by an air circuit connection device. The air circuit connection device includes a main channel pipe and at least two branch channel pipes connected to the main channel pipe. The main channel pipe is connected to the negative pressure device, and the branch channel pipes are connected to the cleaning host.

[0005] In a preferred embodiment of the present invention, a garbage collection box is provided on the cleaning host, and the branch channel pipeline is connected to the garbage collection box.

[0006] In another preferred embodiment of the present invention, the waste collection box includes a main wastewater tank and an airflow buffer chamber connected to the main wastewater tank. The airflow buffer chamber is located close to and connected to the branch channel pipe, while the main wastewater tank is located away from the branch channel pipe.

[0007] In another preferred embodiment of the present invention, a through hole is provided on the side wall of the airflow buffer chamber, and one end of the branch channel pipe is connected to the airflow buffer chamber through the through hole, and the branch channel pipe is sealed at the connection with the through hole.

[0008] In another preferred embodiment of the present invention, the garbage collection box further includes a sewage isolation chamber disposed between the main sewage tank and the airflow buffer chamber, and baffles are respectively provided between the sewage isolation chamber and the main sewage tank and the airflow buffer chamber to block the flow of sewage.

[0009] In another preferred embodiment of the present invention, a storage box lid with a shape and size matching the garbage storage box is covered on top of the garbage storage box, and the main sewage tank, the airflow buffer chamber, and the sewage isolation chamber are interconnected above the space enclosed by the storage box lid and the garbage storage box.

[0010] In another preferred embodiment of the present invention, the cleaning device further includes a control rod disposed above the cleaning host, the lower end of the control rod being provided with a protrusion or an arc-shaped groove, and the upper end of the air circuit connection device being provided with an arc-shaped groove or a protrusion at a corresponding position, the control rod and the air circuit connection device being rotatably connected through the arc-shaped groove and the protrusion.

[0011] In another preferred embodiment of the present invention, the air circuit connection device is rotatably connected to the cleaning host in a horizontal direction, and a limiting structure is provided on the cleaning host. The horizontal rotation angle of the air circuit connection device relative to the cleaning host is limited by the rotation limiting structure.

[0012] In another preferred embodiment of the present invention, the limiting structure includes an elastic limiting block disposed on the cleaning host and a rotating support block disposed at the bottom of the air circuit connection device, wherein the elastic limiting block and the rotating support block are matched in shape and size.

[0013] In another preferred embodiment of the present invention, a fixed bracket is provided on the cleaning host to define the relative position of the air passage connection device. The fixed bracket includes a radial fixing structure that restricts the radial movement of the air passage connection device and a transverse and longitudinal fixing structure that restricts the transverse and longitudinal movement of the air passage connection device.

[0014] Compared with existing technical solutions, the present invention has the following beneficial effects: By installing an air path connection device between the negative pressure device and the cleaning host, the air path connection device is configured as a main channel pipe and at least two branch channel pipes connected to the main channel pipe. The main channel pipe is connected to the negative pressure device, and the branch channel pipes are connected to the cleaning host. Under the suction of the negative pressure device, the airflow is dispersed by the at least two branch channel pipes, providing a buffer for solid and liquid waste before it enters the main channel pipe. Solid and liquid waste is easy to fall back and is not easy to enter the air path connection device. The pipe design eliminates the traditional corrugated pipe design, making it less likely for solid and liquid waste to accumulate and remain in the pipe, causing problems such as odor and smell. On the other hand, because the air path connection device provides a buffer for solid and liquid waste and makes it fall back, water vapor is not easy to rise and enter the motor part, thus better maintaining the service life of the cleaning equipment. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the structural assembly of a garbage collection box and an air circuit connection device according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a pneumatic connection device according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the structure and assembly of the control lever and air circuit connection device according to a preferred embodiment of the present invention; Figure 6 This is a longitudinal cross-sectional view of a preferred embodiment of the present invention; Figure 7 This is a structural assembly diagram of the cleaning host and the air circuit connection device according to a preferred embodiment of the present invention. Detailed Implementation

[0016] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein. In the drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of components is appropriately exaggerated in some places in the drawings.

[0017] like Figure 1 and Figure 2The cleaning device shown includes a negative pressure device 1 and a cleaning host 2. The negative pressure device 1 and the cleaning host 2 are connected by an air passage connection device 3. The air passage connection device 3 includes a main channel pipe 31 and at least two branch channel pipes 32 connected to the main channel pipe. The main channel pipe 31 is connected to the negative pressure device 1, and the branch channel pipes 32 are connected to the cleaning host 2. The air passage connection device 3 is the supporting structure of the entire airflow channel system of the cleaning device. It connects upward to the air passage of the negative pressure device 1 and downward to the air passage of the cleaning host 2. In this embodiment, the air passage connection device 3 adopts a smooth inner wall pipe structure to avoid moisture residue inside the pipe causing odor. During normal operation of the cleaning device, the negative pressure device 1 generates negative pressure. The air passage system formed by the internal connection of the negative pressure device 1, the cleaning host 2, and the air passage connection device 3 creates an airflow channel system. Under the action of negative pressure, solid and liquid waste cleaned by the cleaning host 2 is adsorbed from the ground or object surface into the cleaning device to achieve the cleaning purpose. Correspondingly, the airflow also flows from bottom to top along the negative pressure direction, from the cleaning host 2, through the air path connection device 3, and finally into the negative pressure device 1. The presence of at least two branch channels 32 disperses the airflow impact force, achieving a buffering effect and preventing solid and liquid waste carried in by the airflow from bottom to top from entering the air path inside the negative pressure device 1. In this embodiment, the device for storing solid and liquid waste is located inside the cleaning host 2. Therefore, it is necessary to disperse the airflow impact force as much as possible before the airflow enters the air path connection device 3. Thus, the branch channels 32 connect to the cleaning host 2 to disperse the airflow impact force within the cleaning host 2, achieving a buffering effect, allowing the solid and liquid waste to fall back into the cleaning host 2 under gravity and be collected by the solid and liquid waste storage device. It is worth noting that the connection between the main channel pipe 31 and the negative pressure device 1, and the connection between the branch channel pipe 32 and the cleaning host 2, are all sealed. This makes the internal air passage of the air passage connection device 3, the internal air passage of the negative pressure device 1, and the internal air passage of the cleaning host 2 form a closed environment, so that the negative pressure device 1 can form a negative pressure environment when it is working to achieve a better cleaning effect.

[0018] like Figure 2As shown, a garbage collection box 21 is installed on the cleaning host 2, and a branch channel pipe 32 is connected to the garbage collection box 21. The internal space of the garbage collection box 21 includes a storage space for garbage and an air passage space for airflow. In this embodiment, when the negative pressure device 1 is working, the airflow moving upwards will pass through the garbage collection box 21 and then enter the branch channel pipe 32. The main channel pipe 31 is arranged longitudinally and connected to the negative pressure device 1, while the branch channel pipe 32 is arranged laterally and connected to the garbage collection box 21. Unlike traditional corrugated pipes, the longitudinal pipe arrangement can also avoid water vapor residue to a certain extent. Water vapor falls back into the garbage collection box 21 under the action of gravity and will not remain on the pipe wall. The air passage connection device 3 is a three-way pipe structure. In one embodiment, the air passage connection device 3 includes two branch channel pipes 32, and the garbage collection box 21 is connected to the two branch channel pipes 32 respectively. When the airflow moves from bottom to top, it enters the internal space of the waste collection box 21 through the air inlet. It can be understood that, in order to prevent solid and liquid waste from entering the branch channel pipe 32 through the airflow via the waste collection box 21, the air inlet of the waste collection box 21 is set as far away from the branch channel pipe opening as possible to lengthen the airflow path and achieve a buffering effect; or, within a limited space, the air inlet of the waste collection box 21 and the branch channel pipe opening are set at a certain angle to avoid them being set directly opposite each other and bringing solid and liquid waste directly into the branch channel pipe 32.

[0019] like Figure 3As shown, the branch pipe 32 is connected to the garbage collection box 21 through a through hole in the side wall of the garbage collection box. The garbage collection box 21 includes a main sewage tank 211 and an airflow buffer chamber 212 connected to the main sewage tank 211. The airflow buffer chamber 212 is located close to and connected to the branch pipe 32, while the main sewage tank 211 is located away from the branch pipe 32. The main sewage tank 211 is used to collect and contain solid and liquid garbage that enters the garbage collection box 21 with the airflow. The airflow buffer chamber 212 is used to buffer the airflow. The airflow buffer chamber 212 and the main sewage tank 211 are interconnected in the air passage space above them. In this embodiment, the airflow buffer chamber 212 is disposed between the main sewage tank 211 and the branch channel pipe 32 to buffer the airflow rising from the main sewage tank 211. The airflow is buffered by the airflow buffer chamber 212, causing solid and liquid waste to fall back into the waste collection box 21, making it less likely for it to rise and enter the air passage connection device 3. The airflow buffer chamber 212 is connected to the branch channel pipe 32 so that the airflow can rise and enter the main channel pipe 31, and then enter the air passage space in the negative pressure device 1. In this embodiment, the airflow buffer chamber 212 is disposed inside the waste collection box 21, and the main sewage tank 211 is disposed outside the waste collection box 21. It should be understood that inside and outside refer to the position of the waste collection box 21 relative to the branch channel pipe 32. The inside refers to the side closer to the branch channel pipe 32, and the outside refers to the side away from the branch channel pipe 32. This arrangement can minimize the risk of the airflow carrying solid and liquid waste from the sewage tank into the branch channel pipe 32.

[0020] like Figure 3 As shown, the branch pipe 32 is connected to the garbage collection box 21 through a through hole in the side wall of the garbage collection box. In this embodiment, the side wall of the airflow buffer chamber 212 inside the garbage collection box 21 has a through hole 2121, and one end of the branch pipe 32 is connected to the airflow buffer chamber 212 through the through hole.

[0021] like Figure 4 As shown, the air path connection device 3 has a three-way pipe structure. The two branch pipes 32 open in opposite directions, and the branch pipes 32 are sealed at the connection with the through hole 2121. The sealing connection can be achieved using a sealing element or a sealing ring to seal the edge of the branch pipe 32 that contacts the through hole 2121. This sealed connection allows the air path connection device 3 to connect with the garbage collection box 21 while simultaneously forming a closed air path space, ensuring the sealed environment required for the operation of the negative pressure device and enabling the cleaning equipment to have greater suction power. It is understood that, to ensure the overall sealed environment of the air path, the contact edge between the main pipe 31 and the negative pressure device 1 should also be sealed.

[0022] In another implementation, such as Figure 3As shown, the waste collection box 21 also includes a wastewater isolation chamber 213 disposed between the main wastewater tank 211 and the airflow buffer chamber 212. Baffles are installed between the wastewater isolation chamber 213 and the main wastewater tank 211 and the airflow buffer chamber 212 to block wastewater flow. The wastewater isolation chamber 213, the main wastewater tank 211, and the airflow buffer chamber 212 are separated by baffles, each having a relatively independent containing space. This not only blocks wastewater flow but also provides a buffer for airflow. Simultaneously, the three chambers are interconnected in the upper airflow space to form an airflow channel inside the waste collection box 21. The wastewater isolation chamber 213 further elongates the airflow trajectory, buffering and blocking solid and liquid waste from entering the airflow connection device 3. The airflow rising from the main sewage tank 211 is buffered by the sewage isolation chamber 213, and then by the airflow buffer chamber 212. This double buffering effect separates solid and liquid waste from the airflow, causing the solid and liquid waste to fall back into the main sewage tank 211 and the sewage isolation chamber 213. Very little liquid falls into the airflow buffer chamber 212, and the gas is separated out, rising through the branch pipe 32 into the main pipe 31, and finally into the air passage space within the negative pressure device 1. This design improves the separation of solid and liquid waste. The solid and liquid waste remains in the waste collection box 21, while the gas rises independently into the air passage space of the air passage connection device 3 and the negative pressure device 1. This prevents waste from remaining in the connecting pipes and emitting odors, and also avoids moisture damage to electronic components such as the negative pressure motor.

[0023] In this embodiment, the garbage collection box 21 is a box-shaped structure with an upward opening and an internal storage space. A collection box lid 22, matching the shape and size of the garbage collection box 21, is placed on top of the garbage collection box 21. The collection box lid 22 tightly seals the garbage collection box 21, and its internal air passage connects the main sewage tank 211, the airflow buffer chamber 212, and the sewage isolation chamber 213. Specifically, the height of the baffles between the sewage isolation chamber 213, the main sewage tank 211, and the airflow buffer chamber 212 is set lower than the bottom height of the collection box lid. In this way, the space above each baffle to the bottom of the collection box lid is interconnected, forming an air passage inside the garbage collection box 21. That is, the main sewage tank 211, the airflow buffer chamber 212, and the sewage isolation chamber 213 are interconnected above the space enclosed by the collection box lid 22 and the garbage collection box 21.

[0024] like Figure 5 and Figure 6As shown, the cleaning equipment also includes a control rod 4 located above the cleaning host 2, which is rotatably connected to the air circuit connection device 3. The outer wall of the main channel pipe 31 of the air circuit connection device 3 is provided with a grooved connecting neck 311. A vertically extending pipe 41 is also provided at the lower end of the control rod 4. Connecting ribs 411 are provided on the inner wall of the pipe 41 at positions corresponding to the connecting neck 311. The shape and size of the connecting ribs 411 match the groove of the connecting neck 311, and they are connected to the connecting neck 311 by snap-fit. Simultaneously, the connecting ribs 411 can slide along the groove of the connecting neck 311, thus achieving a rotatable connection between the control rod 4 and the air circuit connection device 3. In this embodiment, a limiting protrusion 312 is also provided on the surface of the gas connection device 3. A curved groove is provided at the bottom of the control rod 4 corresponding to the position of the limiting protrusion 312. When the connecting neck 311 is connected to the connecting rib 411, the limiting protrusion 312 can slide within the curved groove at the bottom of the control rod 4 and is limited by the length of the curved groove. Therefore, the relative rotation angle between the connecting neck 311 and the connecting rib 411 is limited by the limiting protrusion 312 and the curved groove. That is, the limiting protrusion 312 and the curved groove limit the rotation angle of the control rod 4 relative to the gas connection device 3. It can be understood that the above-mentioned rotating connection fixing method is not limited to the form of the connecting neck 311 and the connecting rib 411. For example, a protrusion or curved groove is provided at the lower end of the control rod 4, and a curved groove or protrusion is provided at the corresponding position at the upper end of the gas connection device 3. The control rod 4 and the gas connection device 3 are rotatably connected through the curved groove and the protrusion. The upper opening of the pipe 41 allows the gas connection device 3 to communicate with the negative pressure device 1. Specifically, the control lever 4 is located on one side of the pipe 41, and the lower end of the negative pressure device 1 is provided with an air inlet pipe 11, which is inserted into the pipe 41. The outer shell of the negative pressure device 1 is fixedly connected to the control lever 4 to maintain a stable state. The lower opening of the pipe 41 is connected to the main channel pipe 31 of the air connection device 3, and is rotatably connected to the connecting neck 311 through the aforementioned connecting rib 411. In this embodiment, the air connection device 3 also includes an auxiliary structure sleeved around the main channel pipe 31 and the branch channel pipe 32. The auxiliary structure is fixedly connected to the main and branch channel pipes through connecting ribs. Specifically, it includes a longitudinal auxiliary structure sleeved around the main channel pipe 31 and a transverse auxiliary structure sleeved around the branch channel pipe 32. The longitudinal auxiliary structure runs vertically through the pipe, and the transverse auxiliary structure runs horizontally through the pipe. A gap is left between the auxiliary structure and the outer wall of the main and branch pipelines. The auxiliary structure, which runs vertically and horizontally, and the aforementioned gap facilitate the routing of the internal wiring and water lines of the cleaning equipment. This arrangement isolates the wiring and water lines from the airflow channels, preventing the influence of water vapor inside the airflow channels.

[0025] like Figure 7As shown, the air circuit connection device 3 is rotatably connected to the cleaning host 2 in a horizontal direction, and the horizontal rotation angle of the air circuit connection device 3 relative to the cleaning host 2 is limited by a rotation limiting structure. In actual floor cleaning, the operator typically rotates the control lever to adjust the cleaning direction and angle. In one embodiment, the control lever 4 is rotatably connected to the air circuit connection device 3, and adjusting the left and right rotation of the control lever 4 controls the left and right cleaning direction of the cleaning equipment. In this embodiment, the air circuit connection device 3 can rotate horizontally around the cleaning host 2 to adjust the angle between the control lever 4 and the horizontal direction, allowing the operator to control the cleaning equipment for cleaning operations in a low-altitude environment. The rotation limiting structure that enables the horizontal rotatable connection includes a rotation fulcrum and a rotating shaft structure. The air circuit connection device 3 rotates around the rotating shaft structure with the rotation fulcrum as the force point, and the axis of the rotating shaft structure is horizontal.

[0026] In another embodiment, the rotating shaft structure is a bearing, which is sleeved around the outer periphery of the branch channel pipe and rotatably connected to the branch channel pipe 32. The bearing is fixedly connected to the rotation fulcrum, and the branch channel pipe 32 rotates about the bearing center line as the axis.

[0027] In this embodiment, the rotation limiting structure includes a rotation limiting structure support frame 23 symmetrically arranged on the cleaning host 2, an elastic limiting block 231 arranged on the rotation limiting structure support frame 23, and two rotation support blocks 34 arranged at the bottom of the air passage connection device 3. The rotation support blocks 34 are arranged at the bottom of the branch channel pipe 32 and are symmetrical from left to right. The elastic limiting block 231 has a certain degree of flexibility with a protruding structure, the protruding part of which faces the air passage connection device 3. The rotation support block 34 is wedge-shaped, with its acute angle facing downward and abutting against the protruding structure of the elastic limiting block 231. The elastic limiting block 231 can be made of a flexible material that is elastic in itself, or a non-flexible material with a spring installed at the bottom. In this embodiment, the elastic limiting block 231 is fixedly installed on the rotation limiting structure support frame 23. The rotation limiting structure support frame 23 is provided with a limiting baffle relative to the rotation direction of the air circuit connection device 3. The air circuit connection device 3 rotates with the rotation support block 34 as the fulcrum and the line connecting the rotation support blocks 34 as the axis. When it rotates to a certain angle, the limiting baffle blocks the air circuit connection device 3 from rotating forward or backward, thereby realizing the rotation limiting function of the control rod 4 relative to the cleaning host 2 in the horizontal direction.

[0028] The cleaning host 2 is equipped with a fixed bracket that limits the relative position of the air passage connection device 3. The fixed bracket includes a radial fixing structure that limits the radial movement of the air passage connection device 3 and a transverse and longitudinal fixing structure that limits the transverse and longitudinal movement of the air passage connection device 3. In this embodiment, the radial fixing structure consists of radial limiting baffles respectively provided on both sides of the elastic limiting block 231. The lowest point of the radial limiting baffle is higher than the horizontal height of the contact point between the rotating support block 34 and the elastic limiting block 231. In this way, the radial limiting baffle limits the movement of the air passage connection device 3 in the radial direction of the branch channel pipe 32. The cleaning host 2 also includes a garbage box base 24 whose shape and structure match the garbage collection box 21. The garbage box base 24 has an internal accommodating space. The garbage collection box 21 is fixedly connected to the internal accommodating space of the garbage box base 24. The side wall of the garbage box base 24 has a through hole, the position of which corresponds to the position of the through hole 2121 on the garbage collection box 21 that communicates with the branch channel pipe 32. The branch channel pipe 32 of the gas connection device 3 contacts the elastic limiting block 231 through the rotating support block 34 and is mounted on the rotating limiting structure support frame 23. On the other hand, the branch channel pipe 32 passes through a through hole on the side wall of the garbage box base 24 and connects to the garbage collection box 21. The rotating limiting structure support frame 23 is also equipped with a connecting post 232, which has a screw hole. The garbage box base 24 and the rotating limiting structure support frame 23 are fixedly connected by screws through the connecting post 232. This limits the position of the gas connection device 3 in the horizontal and vertical directions, i.e., it is a horizontal and vertical fixed structure. It can be understood that the fixed connection method can also be a snap-fit, bolt-fit, etc., and is not limited to the connection method described in the above embodiment.

[0029] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cleaning device, comprising a negative pressure device and a cleaning main unit, characterized in that, The negative pressure device is connected to the cleaning host via an air circuit connection device. The air circuit connection device includes a main channel pipe and at least two branch channel pipes connected to the main channel pipe. The main channel pipe is connected to the negative pressure device, and the branch channel pipes are connected to the cleaning host. The air circuit connection device is a through-pipe structure with a smooth inner wall. The cleaning host is equipped with a garbage collection box, and the branch channel pipe is connected to the garbage collection box; The waste collection box includes a main wastewater tank and an airflow buffer chamber connected to the main wastewater tank. The airflow buffer chamber is located close to and connected to the branch channel pipe, while the main wastewater tank is located away from the branch channel pipe.

2. The cleaning equipment as described in claim 1, characterized in that, The side wall of the airflow buffer chamber has a through hole, and one end of the branch channel pipe is connected to the airflow buffer chamber through the through hole. The connection between the branch channel pipe and the through hole is sealed.

3. The cleaning equipment as described in claim 1, characterized in that, The waste collection box also includes a wastewater isolation chamber disposed between the main wastewater tank and the airflow buffer chamber, and baffles are respectively provided between the wastewater isolation chamber and the main wastewater tank and the airflow buffer chamber to block the flow of wastewater.

4. The cleaning equipment as described in claim 3, characterized in that, The garbage collection box is covered with a lid that matches the shape and size of the garbage collection box. The main sewage tank, the airflow buffer chamber, and the sewage isolation chamber are interconnected above the space enclosed by the lid and the garbage collection box.

5. The cleaning equipment as described in claim 1, characterized in that, It also includes a control rod disposed above the cleaning host, the lower end of the control rod is provided with a protrusion or an arc-shaped groove, and the upper end of the air circuit connection device is provided with an arc-shaped groove or a protrusion at a corresponding position. The control rod and the air circuit connection device are rotatably connected through the arc-shaped groove and the protrusion.

6. The cleaning equipment as described in claim 1, characterized in that, The air circuit connection device is rotatably connected to the cleaning host in a horizontal direction, and the horizontal rotation angle of the air circuit connection device relative to the cleaning host is limited by a rotation limiting structure.

7. The cleaning equipment as described in claim 6, characterized in that, The rotation limiting structure includes an elastic limiting block disposed on the cleaning host and a rotation support block disposed at the bottom of the air connection device, wherein the elastic limiting block and the rotation support block are matched in shape and size.

8. The cleaning equipment as described in claim 6, characterized in that, The cleaning host is provided with a fixed bracket that limits the relative position of the air circuit connection device. The fixed bracket includes a radial fixing structure that limits the radial movement of the air circuit connection device and a transverse and longitudinal fixing structure that limits the transverse and longitudinal movement of the air circuit connection device.

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