Suction head with self-locking structure and cleaning equipment

Abstract

The invention discloses a suction head with a self-locking structure and cleaning equipment, and relates to the technical field of cleaning equipment, and the suction head with the self-locking structure comprises a seat body and the self-locking structure; a suction port is formed in the base body, and the self-locking structure is arranged on the base body and used for controlling the suction port to be opened and closed. The cleaning equipment comprises a suction head and further comprises a machine body, a moving assembly and a movable plate. The moving assembly is used for driving the machine body to move; a receding opening allowing the suction head to be installed is formed in the bottom of the machine body, the receding opening is obliquely formed downwards in the advancing direction of the machine body, and the suction opening and the receding opening face the same direction. The movable plate is movably connected with the machine body and used for controlling opening and closing of the receding opening. The cleaning equipment has a better cleaning effect, and meanwhile, the probability that the ground is polluted again by sucked impurities in the cleaning process of the cleaning equipment can be effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment, and in particular to a suction head and cleaning equipment with a self-locking structure. Background Technology

[0002] Cleaning equipment, as the name suggests, is mechanical equipment designed for cleaning. Modern industries involving cleaning include municipal sanitation, airport terminals, commercial buildings, public places, manufacturing workshops, warehousing and logistics, hotels, medical and health institutions, retail, and sports venues. Cleaning equipment plays an efficient cleaning role in these places, reducing the labor costs of cleaning while improving work efficiency and cleanliness, making it indispensable in modern society.

[0003] Nowadays, when cleaning floors in indoor environments such as homes, offices, and hotels, robotic vacuum cleaners are often used because cleaning equipment needs to be moved frequently during the cleaning process and requires a certain storage space.

[0004] However, when the robot vacuum cleaner runs out of power or finishes its cleaning task, it may remain stationary and wait for the user to carry it back to the base station, or it may move back to the base station on its own. In either case, during the process of the robot vacuum cleaner returning to the base station, the dust and other impurities inside it can easily leave through its suction port and fall back to the ground, thus affecting its cleaning effect. Summary of the Invention

[0005] This application provides a suction head and cleaning device with a self-locking structure, which has a better cleaning effect and can effectively reduce the probability of impurities sucked in by the cleaning device during the cleaning process re-contaminating the ground.

[0006] On the one hand, this application provides a suction head with a self-locking structure, adopting the following technical solution: A suction head with a self-locking structure includes a base and a self-locking structure; A suction port is provided through the base, and a self-locking structure is provided on the base and is used to control the opening and closing of the suction port; The self-locking structure includes a movable component and a first driving component; the movable component is movably connected to the base and moves in and out of the suction port; the first driving component is disposed on the base and is used to drive the movable component to move.

[0007] By adopting the above technical solution, dust and other impurities can enter through the suction port during the vacuuming process; after the vacuuming is finished, the self-locking structure will close the suction port, which can effectively prevent the impurities sucked in from leaving through the suction port and re-contaminating the ground. This can effectively reduce the probability of the cleaning equipment sucking in impurities and re-contaminating the ground during the cleaning process, and improve the cleaning effect of the vacuum head.

[0008] On the other hand, this application also provides a cleaning device, which adopts the following technical solution: A cleaning device includes a suction head with a self-locking structure as described above, and also includes a body and a movable component and a movable plate disposed at the bottom of the body; The moving component is used to drive the machine body to move at an interval from the ground; the bottom of the machine body has a clearance port for dust and other impurities to enter the machine body, the suction head is located inside the machine body and above the clearance port, the clearance port is opened at an angle downwards in the forward direction of the machine body, and the suction port is aligned with the direction of the clearance port; the movable plate is movably connected to the machine body, and its movement is used to control the opening and closing of the clearance port.

[0009] By adopting the above technical solution, when the cleaning equipment cleans the ground, dust and other impurities can be sucked in through the clearance port and the suction port in sequence; when the cleaning equipment stops cleaning the ground, the self-locking structure closes the suction port, and the movable plate can also close the opening of the clearance port, thereby improving the reliability of the cleaning equipment in effectively reducing the probability of impurities sucked in during the cleaning process re-contaminating the ground.

[0010] Optionally, the movable plate is rotatably connected to the machine body, and its rotation axis is perpendicular to the movement direction of the movable component; when the movable plate rotates to its limit position away from the clearance opening, there is a gap between the movable plate and the ground to prevent large particles of impurities from passing through.

[0011] By adopting the above technical solution, when the opening of the port is opened, the movable plate can ensure the passage of the cleaning equipment on the ground, and at the same time, it can move large particles of impurities that have not been sucked up along the movement path of the cleaning equipment, thereby effectively improving the cleaning effect of the cleaning equipment on the ground.

[0012] Optionally, it also includes two elastic sheets; The two elastic plates are located on both sides of the movable plate, and the two ends of the elastic plates are connected to the movable plate and the body respectively. When the movable plate rotates to its limit position away from the clearance opening, the movable plate and the two elastic plates form a gathering space below the clearance opening.

[0013] By adopting the above technical solution, when the opening of the nozzle is open, the gathering space allows the suction power of the nozzle to be more concentrated on dust and other impurities on the ground, thereby improving the effect of the nozzle in sucking up dust and other impurities; at the same time, it can further facilitate the collection of large particles of impurities that have not been sucked up as the movable plate moves with the cleaning equipment.

[0014] Optionally, the end of the movable plate away from the body is elastic.

[0015] By adopting the above technical solutions, the mobility of cleaning equipment on the ground can be further improved.

[0016] Optionally, the movable component has a rack structure, and the movable plate has a gear structure. The rack structure and the gear structure are engaged, and the movable plate synchronously controls the opening and closing of the clearance port during the process of the movable component controlling the opening and closing of the suction port.

[0017] By adopting the above technical solution, the self-locking structure and the movable plate are linked, which can further ensure the reliability of the two in preventing impurities sucked in by the cleaning equipment from leaving through the suction port and re-contaminating the ground.

[0018] Optionally, it also includes two dust-generating components located on one side of the clearance opening along the forward direction of the machine body; The dust-generating assembly includes a second driving component and a brush disc; the second driving component is disposed at the bottom of the machine body and is used to drive the brush disc to rotate; the bottom of the brush disc has multiple bristles, and the ends of the bristles are in contact with the ground.

[0019] By adopting the above technical solution, during the cleaning process of the moving cleaning equipment, the dust-raising component raises dust and other impurities on the ground, making it easier for the suction head to suck up the dust and other impurities, thereby further improving the cleaning effect of the cleaning equipment.

[0020] Optionally, the dust-generating assembly further includes an elastic element; the two ends of the elastic element are respectively connected to the second driving element and the brush disc, and it has a tendency to drive the brush disc to maintain contact with the ground.

[0021] By adopting the above technical solution, it is possible to ensure that the brush plate is in contact with the ground, thereby effectively improving the reliability of the dust-raising component in raising dust and other impurities on the ground.

[0022] Optionally, the dust-generating assembly further includes an extruder; The extrusion member is disposed at the bottom of the machine body and is located on the side of the second drive member away from the clearance opening; the elastic member has a sealed cavity inside and a groove is provided on its periphery for the extrusion member to be inserted into, and the extrusion member causes the elastic member to be partially deformed after being inserted into the groove.

[0023] By adopting the above technical solution, the extruder can drive the rotating brush to lift dust and other impurities on the ground toward the discharge port, thereby making it easier for the suction head to suck up dust and other impurities on the ground, and further improving the cleaning effect of the cleaning equipment.

[0024] Optionally, the extrusion member is movably connected to the machine body, and the degree to which it extrudes the elastic member changes during its movement.

[0025] By adopting the above technical solution, users can easily adjust the position of the extruder according to the dust conditions on the ground, thereby controlling the dust-raising effect of the dust-raising component on dust and other impurities on the ground.

[0026] In summary, this application includes at least one of the following beneficial effects: 1. It can effectively reduce the probability of cleaning equipment sucking in impurities during the cleaning process and re-contaminating the ground; 2. It has a high cleaning effect on dust and other impurities on the ground, and can effectively reduce the probability that dust and other impurities will remain on the ground after cleaning; 3. It allows users to adjust the dust-generating effect of the dust-generating components according to the dust level on the ground, thereby making the cleaning method of the cleaning equipment more suitable and ensuring the cleaning effect of the cleaning equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the suction port of a suction head with a self-locking structure when it is closed, as described in Embodiment 1. Figure 2 This is a schematic diagram of the suction port of a suction head with a self-locking structure in Embodiment 1 when it is open; Figure 3 This is a schematic diagram of the structure of a cleaning device during cleaning, as shown in Example 2. Figure 4 This is a cross-sectional view of a cleaning device during cleaning, as shown in Example 2. Figure 5 This is a schematic diagram of the structure of a cleaning device when it stops cleaning, as shown in Example 2. Figure 6 This is a cross-sectional view of the linkage structure between the suction head and the movable plate in Embodiment 2; Figure 7 This is a schematic diagram of the structure of the dust-generating assembly in Example 2 when the elastic element is not compressed by the compression element; Figure 8 This is a schematic diagram of the structure of the dust-generating component in Example 2 when the elastic element is squeezed to the maximum extent by the squeezing element.

[0028] Explanation of reference numerals in the attached drawings: 1. Suction head; 11. Base; 111. Suction port; 12. Self-locking structure; 121. Moving part; 122. First driving component; 2. Body; 21. Clearing port; 3. Moving component; 31. Rotating wheel; 32. Third driving component; 4. Movable plate; 5. Elastic sheet; 6. Dust-generating component; 61. Second driving component; 62. Mounting base; 63. Elastic component; 631. Cavity; 632. Groove; 64. Brush disc; 641. Brush bristles; 65. Extrusion component; 651. Extrusion section; 7. Gathering space; 8. Rack and pinion structure; 9. Gear structure. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0030] Example 1: Reference Figure 1 and Figure 2 This application discloses a suction head with a self-locking structure, which is installed on a cleaning device and can automatically adjust its application status according to the application conditions of the cleaning device.

[0031] The suction head 1 includes a base 11 and a self-locking structure 12.

[0032] The base 11 has a rectangular parallelepiped structure, with a suction port 111 for sucking in dust and other impurities through it along its height. A self-locking structure 12 is installed on the base 11 and is used to control the opening and closing of the suction port 111.

[0033] The self-locking structure 12 includes a movable part 121 and a first driving part 122.

[0034] The movable component 121 has a rectangular plate-like structure and is movably connected to the base 11, with its direction of movement parallel to its width direction. In this embodiment, it is preferable that the movable component 121 is installed with its width direction parallel to the width direction of the base 11 and its length direction parallel to the length direction of the base 11.

[0035] The first driving member 122 is fixedly installed on one side of the base 11 in the width direction. It is used to drive the movable member 121 to move relative to the base 11, and the movable member 121 moves in and out of the suction port 111 during the movement. When the movable member 121 moves to its limit position in the direction closer to the suction port 111, the movable member 121 completely closes the suction port 111. When the movable member 121 moves to its limit position in the direction away from the suction port 111, the movable member 121 completely opens the suction port 111. In this embodiment, the first driving member 122 is preferably a combination of a servo motor and a lead screw drive structure, which drives the movable member 121 to move relative to the base 11 through lead screw drive. Since the servo motor and lead screw drive structure are common existing technologies, they will not be described in detail here, and they are only briefly shown in the accompanying drawings.

[0036] The implementation principle of a suction head with a self-locking structure in this application embodiment is as follows: During the cleaning process, the self-locking structure 12 keeps the suction port 111 fully open, allowing dust and other impurities to be sucked in smoothly. When the cleaning equipment stops cleaning due to completion or depletion of power, the self-locking structure 12 will be triggered, and the first driving member 122 will drive the movable member 121 to move towards the suction port 111 to its limit position, so that the suction port 111 is completely closed. This reduces the probability that dust and other impurities sucked in through the suction port 111 will fall to the ground again during the process of the cleaning equipment being manually carried back to the base station by the user or moving back to the base station on its own.

[0037] Example 2: Reference Figure 3 and Figure 4 This application discloses a cleaning device for removing dust and other impurities from the ground.

[0038] The cleaning equipment includes a suction head 1 with a self-locking structure 12 as disclosed in Example 1, and also includes a body 2, a moving component 3, a movable plate 4, two elastic sheets 5 and two dust-generating components 6.

[0039] The main body 2 has a disc-like structure and is placed on the ground in a vertical position with its own axis. The moving component 3, the movable plate 4, the two elastic plates 5 and the two dust-generating components 6 are all installed at the bottom of the main body 2.

[0040] The moving component 3 includes at least three rotating wheels 31 and several third driving members 32 for driving the rotating wheels 31 to rotate. The third driving members 32 are fixedly installed inside the body 2. Part of the rotating wheels 31 protrudes from the bottom of the body 2 so that the body 2 can maintain a certain distance from the ground when in contact with it. The third driving members 32 drive the rotating wheels 31 to rotate, thereby moving the cleaning equipment on the ground. In this embodiment, the moving component 3 preferably includes three rotating wheels 31, two of which are driven to rotate by the same third driving member 32, and their rotation axes coincide and are horizontal; the third rotating wheel 31 is a steering wheel, driven to rotate by another third driving member 32, and its rotation axis is parallel to the axis of the body 2, which helps the cleaning equipment maintain balance during movement and realizes the function of turning. Preferably, the third driving member 32 is a servo motor. Since the moving component 3 with the above functions is the prior art in this field, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0041] The bottom of the body 2 has a clearance opening 21 at its center, allowing dust and other impurities to enter. The clearance opening 21 is angled in the direction of movement of the body 2, making the interior of the body 2 connected to the space between the bottom of the body 2 and the ground. The suction head 1 is fixedly installed inside the body 2 and above the clearance opening 21, with the suction port 111 facing the same direction as the clearance opening 21. The self-locking structure 12 is located inside the body 2 and on one side of the base 11 along the direction of movement of the body 2. Dust and other impurities on the ground are sucked in through the suction port 111 and enter the interior of the body 2, which also has a structure for collecting dust and other impurities. In this embodiment, the suction head 1 is preferably controlled by the cleaning equipment program and can adaptively perform corresponding operations according to the usage of the cleaning equipment. Since the sweeping robot with the above functions is existing technology in the field, it will not be described in detail here, and only a brief representation is given in the accompanying drawings.

[0042] The movable plate 4 has a rectangular plate-like structure. One side of its width direction is rotatably connected to the bottom of the body 2. Its rotation axis is parallel to its own length direction and parallel to the length direction of the base 11.

[0043] Reference Figure 3 and Figure 5The movable plate 4 is rotatably connected to the bottom of the body 2 at a position opposite to the direction of movement of the body 2 below the opening of the clearance port 21, and the movable plate 4 is restricted during rotation relative to the body 2. When the movable plate 4 rotates to its limit position towards the clearance port 21, the end of the movable plate 4 away from its own axis of rotation contacts and abuts against the bottom of the body 2, and the movable plate 4 closes the opening below the clearance port 21; when the movable plate 4 rotates to its limit position away from the clearance port 21, the width direction of the movable plate 4 is parallel to the axis of the body 2, and at this time, a gap is formed between the end of the movable plate 4 away from the body 2 and the ground, which can effectively prevent large particles of impurities from passing under the body 2.

[0044] Reference Figure 3 and Figure 4 Furthermore, preferably, the end of the movable plate 4 furthest from the body 2 has a certain degree of flexibility and elasticity. When there are obstacles with a certain degree of protrusion on the ground, the end of the movable plate 4 furthest from the body 2 can bend and deform after contacting them, reducing the impact of the obstacles on the mobility of the cleaning equipment on the ground. In this embodiment, preferably, the end of the movable plate 4 furthest from the body 2 is made of rubber material.

[0045] Reference Figure 3 and Figure 5 The elastic sheet 5 is elastic in its entirety. Its two ends along its length are fixedly connected to the bottom of the body 2 and one side of the movable plate 4 along its length, respectively. The two elastic sheets 5 are symmetrically distributed on both sides of the movable plate 4 along its length. When the movable plate 4 rotates to its limit position towards the clearance opening 21, the elastic sheets 5 bend and fold on both sides of the movable plate 4 along its length, allowing the movable plate 4 to smoothly contact the bottom of the body 2 and close the opening below the clearance opening 21. When the movable plate 4 rotates to its limit position away from the clearance opening 21, the two elastic sheets 5 and the movable plate 4 together form a gathering space 7 below the clearance opening 21, communicating with the clearance opening 21. The gathering space 7 is flared in the direction the body 2 moves forward, which helps the suction head 1 improve its suction power for dust and other impurities on the ground. It also facilitates the accumulation of large particles of impurities on the ground in the gathering space 7, allowing them to move with the body 2 for subsequent processing by the user. In this embodiment, the elastic sheet 5 is preferably made of rubber.

[0046] Reference Figure 4 and Figure 6 Furthermore, it is preferable that the movable plate 4 rotates relative to the body 2 and forms a linkage with the self-locking structure 12.

[0047] The movable component 121 has a rack structure 8 extending along its width away from the first driving component 122. The movable plate 4 has a coaxial gear structure 9 at its rotational connection position with the body 2, and the rack structure 8 and gear structure 9 remain engaged during the movement of the movable component 121 relative to the base 11. As the movable component 121 moves towards the suction port 111 to its limit position, it will drive the movable plate 4 to rotate towards the clearance port 21 to its limit position through the engagement of the rack structure 8 and gear structure 9, and vice versa.

[0048] Reference Figure 3 and Figure 7 The dust-raising component 6 is located at the bottom of the body 2 on the side of the relief port 21 away from the rotation axis of the movable plate 4. The two dust-raising components 6 are located on both sides of the length direction of the relief port 21, and the two dust-raising components 6 are symmetrically distributed with respect to the relief port 21.

[0049] Reference Figure 4 and Figure 7 The dust-generating component 6 includes a second drive component 61, a mounting base 62, an elastic component 63, a brush plate 64, and an extrusion component 65.

[0050] Mounting base 62 is mounted on the bottom of body 2 and rotatably connected to body 2, with its rotation axis parallel to the axis of body 2; second driving member 61 is installed inside body 2 and is used to drive mounting base 62 to rotate relative to body 2. In this embodiment, the second driving member 61 is preferably a servo motor.

[0051] The elastic element 63 has a sealed cavity 631 filled with gas inside. It has a cylindrical structure and is fixedly installed on the bottom of the mounting base 62, with its axis coinciding with the rotation axis of the mounting base 62. In this embodiment, the elastic element 63 is preferably made of rubber material.

[0052] The brush disc 64 has a circular structure with multiple bristles 641 at its bottom for contact with the ground. Its top is fixedly connected to the bottom of the elastic member 63. When the elastic member 63 is not compressed, the axis of the brush disc 64 coincides with the axis of the elastic member 63. Under the action of the elastic member 63, the brush disc 64 keeps its bristles 641 in contact with the ground. When the brush disc 64 passes over an obstacle protruding from the ground, the brush disc 64 can also pass over the obstacle through the deformation of the elastic member 63.

[0053] Reference Figure 7 and Figure 8The extrusion member 65 is movably mounted on the bottom of the machine body 2 and located on the side of the elastic member 63 opposite to the relief opening 21. It moves relative to the machine body 2 in the radial direction, and its direction of movement intersects the rotation axis of the mounting base 62. In this embodiment, it is preferable that the extrusion member 65 is slidably connected to the machine body 2, and it is preferable that the user drives the extrusion member 65 to move relative to the machine body 2 through a screw drive structure.

[0054] Reference Figure 3 and Figure 8 The end of the extrusion member 65 away from the body 2 extends towards the elastic member 63 with an extrusion portion 651, and the extrusion portion 651 is constricted towards the elastic member 63. The elastic member 63 has a groove 632 around its periphery for the extrusion portion 651 to be inserted. During the movement of the extrusion member 65 relative to the body 2, the extrusion portion 651 can be inserted into the groove 632, and after the extrusion portion 651 is inserted into the groove 632, it can drive the part of the elastic member 63 near the extrusion member 65 to undergo local expansion and deformation, thereby causing the axis of the brush disk 64 to tilt upward towards the direction of the extrusion member 65. At this time, during the rotation of the mounting base 62 driven by the second drive member 61, the position of the local expansion and deformation of the elastic member 63 caused by the extrusion member 65 will continuously change. During the rotation of the two brush disks 64, the tilted position of their axes can be kept stable, so that the contact degree between the multiple bristles 641 and the ground is different, and the brush disk 64 can lift the dust and other impurities on the ground towards the direction of the clearance opening 21. In this embodiment, when the extruder 65 moves to its limit position away from the corresponding elastic member 63, a certain distance is maintained between the extruder 651 and the elastic member 63. When the extruder 65 moves to its limit position towards the corresponding elastic member 63, the extruder 651 is inserted into the groove 632 and drives the elastic member 63 to the maximum degree of local expansion and deformation.

[0055] As the squeezing component 65 moves toward the elastic component 63, the tilt of the brush disk 64 axis will gradually increase, and vice versa. This allows the user to adjust the squeezing component 65 according to factors such as the type of dust on the ground and its adhesion strength, thereby improving the effect of the dust-raising component 6 in lifting dust and other impurities and then sucking them in by the suction head 1, thus improving the cleaning effect of the cleaning equipment on the ground.

[0056] The principle of an embodiment of a cleaning device in this application is as follows: During the cleaning process, the moving component 3 drives the machine body 2 to move on the ground. During this process, the movable plate 4 is rotated to its limit position away from the clearance port 21, so that the suction head 1 can suck the dust and other impurities in the area where the machine body 2 moves through the clearance port 21 and the suction port 111 into the machine body 2 for collection. At the same time, the gathering space 7 formed by the movable plate 4 and the two elastic plates 5 can effectively guide the dust and other impurities on the ground into the clearance port 21, and can also gather large particles of impurities on the ground that are not sucked in, so that they move with the machine body 2 in the gathering space 7, making it convenient for the user to handle them later. In addition, the two dust-raising components 6 continuously operate on both sides in front of the gathering space 7, raising the dust and other impurities in the area they pass through on the ground, so that the dust and other impurities can enter the gathering space 7 and be sucked in by the suction head 1 through the clearance port 21 and the suction port 111, effectively improving the cleaning effect of the cleaning equipment on the ground. When the cleaning equipment stops cleaning, the dust-generating component 6 will stop operating, and the self-locking structure 12 of the suction head 1 will be triggered. The first driving component 122 will drive the movable component 121 to close the suction port 111. At the same time, the movable plate 4 will rotate towards the relief port 21 until it closes the opening below the relief port 21, effectively preventing dust and other impurities inside the machine body 2 from falling to the ground through the suction port 111 and the relief port 21.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A suction head with a self-locking structure, characterized in that, It includes a base (11) and a self-locking structure (12); A suction port (111) is provided through the seat (11), and a self-locking structure (12) is provided on the seat (11) and is used to control the opening and closing of the suction port (111); The self-locking structure (12) includes a movable part (121) and a first driving part (122); the movable part (121) is movably connected to the seat (11) and moves in and out of the suction port (111); the first driving part (122) is disposed on the seat (11) and is used to drive the movable part (121) to move.

2. A cleaning device, comprising a suction head (1) with a self-locking structure (12) as described in claim 1, characterized in that, It also includes a body (2) and a movable component (3) and a movable plate (4) disposed at the bottom of the body (2); The moving component (3) is used to drive the body (2) to move at an interval from the ground; the bottom of the body (2) is provided with a clearance port (21) for dust and other impurities to enter the body (2); the suction head (1) is located inside the body (2) and above the clearance port (21); the clearance port (21) is opened downwards in the forward direction of the body (2); and the suction port (111) is aligned with the direction of the clearance port (21); the movable plate (4) is movably connected to the body (2), and its movement is used to control the opening and closing of the clearance port (21).

3. The cleaning equipment according to claim 2, characterized in that, The movable plate (4) is rotatably connected to the body (2), and its rotation axis is perpendicular to the movement direction of the movable part (121); when the movable plate (4) rotates to the limit position away from the clearance port (21), there is a gap between the movable plate (4) and the ground to prevent large particles of impurities from passing through.

4. A cleaning device according to claim 3, characterized in that, It also includes two elastic sheets (5); The two elastic plates (5) are located on both sides of the movable plate (4). The two ends of the elastic plates (5) are connected to the movable plate (4) and the body (2) respectively. When the movable plate (4) rotates to its limit position away from the relief opening (21), the movable plate (4) and the two elastic plates (5) form a gathering space (7) below the relief opening (21).

5. A cleaning device according to claim 3, characterized in that, The end of the movable plate (4) away from the body (2) is elastic.

6. A cleaning device according to claim 3, characterized in that, The movable part (121) has a rack structure (8), and the movable plate (4) has a gear structure (9). The rack structure (8) and the gear structure (9) are engaged. During the process of the movable part (121) controlling the opening and closing of the suction port (111), the movable plate (4) synchronously controls the opening and closing of the clearance port (21).

7. A cleaning device according to claim 2, characterized in that, It also includes two dust-generating components (6) located on one side of the clearance opening (21) along the forward direction of the body (2); The dust-generating component (6) includes a second drive member (61) and a brush disc (64); the second drive member (61) is disposed at the bottom of the body (2) and is used to drive the brush disc (64) to rotate; the bottom of the brush disc (64) has multiple bristles (641), and the ends of the bristles (641) are in contact with the ground.

8. A cleaning device according to claim 7, characterized in that, The dust-generating component (6) also includes an elastic element (63); the two ends of the elastic element (63) are connected to the second driving element (61) and the brush disk (64) respectively, and it has a tendency to drive the brush disk (64) to keep in contact with the ground.

9. A cleaning device according to claim 8, characterized in that, The dust-generating component (6) also includes an extrusion component (65); The extrusion member (65) is located at the bottom of the body (2) and is located on the side of the second drive member (61) away from the relief opening (21); the elastic member (63) has a sealed cavity (631) inside and a groove (632) is provided on its periphery for the extrusion member (65) to be inserted into, and the extrusion member (65) drives the elastic member (63) to partially deform after being inserted into the groove (632).

10. A cleaning device according to claim 9, characterized in that, The extrusion member (65) is movably connected to the body (2), and the degree to which it extrudes the elastic member (63) changes during its movement.

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