Unmanned cleaning robot

Abstract

The present invention discloses an unmanned cleaning robot, which includes a chassis; a driving wheel, which is rotatably arranged on the chassis, and the driving wheel is convexly provided with a first rotating shaft; a driving assembly, which is connected to the chassis, and the driving assembly includes a second rotating shaft arranged adjacent to the first rotating shaft; and a connecting assembly, which is connected to the chassis and is located between the second rotating shaft and the first rotating shaft, and is used to conduct or disconnect the transmission between the second rotating shaft and the first rotating shaft. The technical solution of the present invention improves the convenience of using the unmanned cleaning robot.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to an unmanned cleaning robot. Background Art

[0002] At present, most of the existing floor scrubbers are manually pushed by operators to complete their work. However, manually pushing the floor scrubber by operators makes the work efficiency low. For this reason, fully automatic unmanned cleaning robots have appeared on the market, which can automatically complete the work instead of manually pushing by operators, thereby improving work efficiency. However, this type of unmanned cleaning robot has problems such as inconvenience in use when encountering some emergency situations. For example, when the environment in the working area changes suddenly, the built-in navigation system fails, etc., this type of unmanned cleaning robot cannot respond flexibly.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide an unmanned cleaning robot, aiming to improve the convenience of using the unmanned cleaning robot.

[0005] To achieve the above object, the unmanned cleaning robot proposed by the present invention comprises:

[0006] A driving wheel, the driving wheel is rotatably disposed on the base frame, and the driving wheel is convexly provided with a first rotating shaft;

[0007] a driving assembly connected to the base frame, the driving assembly comprising a second rotating shaft disposed adjacent to the first rotating shaft; and

[0008] A connecting component is connected to the base frame and is located between the second rotating shaft and the first rotating shaft, and is used to switch on or off the transmission between the second rotating shaft and the first rotating shaft.

[0009] Optionally, the first rotating shaft sleeve is provided with a first gear, the second rotating shaft sleeve is provided with a second gear, the connecting assembly comprises a first driving member and a third gear connected to the first driving member, and the first driving member is connected to the base frame;

[0010] The first driving member drives the third gear to approach or move away from the first gear and the second gear, so that the third gear is meshed with or disengaged from the first gear and the second gear.

[0011] Optionally, the first driving member is a connecting rod, the connecting rod is rotatably connected to the base frame, and the third gear is rotatably connected to one end of the connecting rod.

[0012] Optionally, the unmanned cleaning robot further includes a sensor and a controller, wherein the sensor is disposed on the base frame and is used to sense force information of the driving wheel; the controller is disposed on the base frame and is electrically connected to the sensor and the driving component and is used to control the driving component.

[0013] Optionally, the unmanned cleaning robot further comprises a scrubbing disc and a second driving member disposed on the chassis, wherein the second driving member is connected to the scrubbing disc and drives the scrubbing disc to rotate.

[0014] Optionally, the unmanned cleaning robot further includes a garbage recycling mechanism, the base frame is provided with a mounting slot, the garbage recycling mechanism is detachably mounted in the mounting slot, and the garbage recycling mechanism is used to recycle garbage on the ground.

[0015] Optionally, the unmanned cleaning robot further comprises a front sweeping disc and a third driving member arranged on the chassis, the front sweeping disc is arranged adjacent to the garbage recycling mechanism, the third driving member is connected to the front sweeping disc and drives the front sweeping disc to rotate.

[0016] Optionally, the unmanned cleaning robot also includes a sewage tank, a water suction motor and a sewage recovery channel, the sewage tank is arranged on the base frame, the water suction motor is arranged in the sewage tank, the water inlet end of the sewage recovery channel is arranged on the side of the base frame facing the scrubbing plate, and the water outlet end of the sewage recovery channel is connected to the sewage tank.

[0017] Optionally, the unmanned cleaning robot further includes a wiper blade, wherein the wiper blade is connected to a side of the chassis facing the scrubbing plate and is disposed adjacent to a water inlet end of the sewage recovery channel.

[0018] Optionally, the unmanned cleaning robot further comprises a sewage treatment box arranged on the chassis, the sewage treatment box is connected to the sewage tank, and a filter is arranged in the sewage treatment box;

[0019] And / or, the unmanned cleaning robot further comprises a clean water tank disposed on the base frame, and a water outlet end of the clean water tank is adjacent to the scrubbing plate.

[0020] The unmanned cleaning robot of the technical solution of the present invention is provided with a connecting component adjacent to the driving wheel and the driving component, and the connecting component is used to conduct or disconnect the transmission between the second rotating shaft of the driving component and the first rotating shaft of the driving wheel, so that the driving wheel has two modes: automatic rotation and manual pushing. Specifically, when the connecting component conducts the transmission between the second rotating shaft of the driving component and the first rotating shaft of the driving wheel, the driving component can drive the driving wheel to rotate, so that the unmanned cleaning robot can operate automatically. When the connecting component disconnects the transmission between the second rotating shaft of the driving component and the first rotating shaft of the driving wheel, the driving wheel can be separated from the driving control of the driving component, so that it is convenient for the operator to manually push the unmanned cleaning robot. In this way, it is avoided that the unmanned cleaning robot cannot respond flexibly when encountering some emergency situations, and the convenience of using the unmanned cleaning robot is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of an unmanned cleaning robot of the present invention;

[0023] Figure 2 for Figure 1 Another perspective diagram of the unmanned cleaning robot;

[0024] Figure 3 for Figure 1 A schematic diagram of the partial structure of the unmanned cleaning robot;

[0025] Figure 4 for Figure 1 Schematic diagram of the structure of the connection components of the unmanned cleaning robot.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of 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 are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The invention provides an unmanned cleaning robot.

[0035] Please refer to Figure 3 and Figure 4 In one embodiment of the present invention, the unmanned cleaning robot includes a driving wheel 2, a driving component 3 and a connecting component 4, wherein the driving wheel 2 is rotatably disposed on the base frame 1, and the driving wheel 2 is convexly provided with a first rotating shaft 21; the driving component 3 is connected to the base frame 1, and the driving component 3 includes a second rotating shaft 31 arranged adjacent to the first rotating shaft 21; the connecting component 4 is connected to the base frame 1 and is located between the second rotating shaft 31 and the first rotating shaft 21, and is used to conduct or disconnect the transmission between the second rotating shaft 31 and the first rotating shaft 21.

[0036] In this embodiment, the chassis 1 is mainly used to support and install other parts of the unmanned cleaning robot, and it can be an elliptical structure, a rectangular structure or other shapes, etc. The specific shape of the chassis 1 is not limited in this application. The driving wheel 2 is mainly used to drive the unmanned cleaning robot to move, and it is rotatably connected to the chassis 1 through a bearing seat. Specifically, a bearing seat is connected to one surface of the chassis 1, and a clearance hole is opened at a position of the chassis 1 adjacent to the bearing seat. Part of the driving wheel 2 passes through the clearance hole, and the first rotating shaft 21 protruding from the driving wheel 2 passes through the bearing seat. It can be understood that the driving wheel 2 can be fixed by the bearing seat to ensure a better rotation effect and facilitate installation. Optionally, the bearing seat is fixed to the chassis 1 by a detachable connection method to facilitate the later maintenance and replacement of the bearing seat. Specifically, it can be a detachable connection method such as screws or buckles. The driving assembly 3 is mainly used to drive the driving wheel 2 to rotate, so as to realize the automatic operation of the unmanned cleaning robot, and its transmission method is: the driving assembly 3 drives the second rotating shaft 31 to rotate, the second rotating shaft 31 drives the first rotating shaft 21 to rotate through the connecting assembly 4, and the first rotating shaft 21 drives the driving wheel 2 to rotate. In order to ensure the stability of the unmanned cleaning robot, in one embodiment of the present application, two groups of driving wheels 2, driving assemblies 3 and connecting assemblies 4 are provided, and are arranged on opposite sides of the base frame 1. The unmanned cleaning robot is supported by the driving wheels 2 on both sides to avoid the unmanned cleaning robot being subjected to single-point force and affecting the stability. In addition, the direction of operation can be automatically changed by changing the respective rotation speeds of the two groups of driving wheels 2 so that the unmanned cleaning robot is subjected to unbalanced force. In addition, please refer to Figure 2 Universal wheels 9 are provided on the other two opposite sides of the chassis 1 to improve the stability of the unmanned cleaning robot. In one embodiment of the present application, the drive assembly 3 uses a motor. It can be understood that the motor is inexpensive, reliable, easy to install, and can be reversed to achieve various operating requirements.

[0037] The unmanned cleaning robot of the technical solution of the present invention is provided with a connecting assembly 4 adjacent to the driving wheel 2 and the driving assembly 3, and the transmission between the second rotating shaft 31 of the driving assembly 3 and the first rotating shaft 21 of the driving wheel 2 is turned on or off by the connecting assembly 4, so that the driving wheel 2 has two modes of being able to rotate automatically and requiring manual pushing. Specifically, when the connecting assembly 4 turns on the transmission between the second rotating shaft 31 of the driving assembly 3 and the first rotating shaft 21 of the driving wheel 2, the driving assembly 3 can drive the driving wheel 2 to rotate, so that the unmanned cleaning robot can operate automatically. When the connecting assembly 4 disconnects the transmission between the second rotating shaft 31 of the driving assembly 3 and the first rotating shaft 21 of the driving wheel 2, the driving wheel 2 can be separated from the driving control of the driving assembly 3, so as to facilitate the operator to manually push the unmanned cleaning robot. In this way, it is avoided that the unmanned cleaning robot cannot be flexibly responded to in some emergency situations, and the convenience of using the unmanned cleaning robot is improved.

[0038] Next, the structure of the connection component 4 will be described in detail. Please refer to Figure 4 In one embodiment of the present application, the first rotating shaft 21 is provided with a first gear 22, the second rotating shaft 31 is provided with a second gear 32, the connecting assembly 4 includes a first driving member and a third gear 42 connected to the first driving member, and the first driving member is connected to the chassis 1; the first driving member drives the third gear 42 to approach or move away from the first gear 22 and the second gear 32, so that the third gear 42 is engaged with or disengaged from the first gear 22 and the second gear 32. It can be understood that the transmission mode of the first gear 22, the second gear 32 and the third gear 42 makes the structure between the three compact, reduces the occupied space, and ensures the stability and efficiency of the transmission. However, the present application is not limited to this. In other embodiments, the first rotating shaft 21 and the second rotating shaft 31 can also be provided with tooth grooves that match the third gear 42 respectively, and the power transmission of the first driving member is realized through the cooperation between the third gear 42 and the tooth groove.

[0039] Further, in one embodiment of the present application, the first driving member is a connecting rod 41, the connecting rod 41 is rotatably connected to the base frame 1, and the third gear 42 is rotatably connected to one end of the connecting rod 41. In detail, the third gear 42 is arranged between the first gear 22 and the second gear 32, and is located above the first gear 22 and the second gear 32. The connecting rod 41 is rotatably connected to a bearing seat located on a surface of the base frame 1, and the rotation point is used as a support point. When an external force acts on one end of the connecting rod 41 away from the third gear 42, one end of the connecting rod 41 provided with the third gear 42 rotates upward around the support point, thereby driving the third gear 42 to move upward, so that it is disengaged from the first gear 22 and the second gear 32, so that the driving wheel 2 is disengaged from the driving control of the first driving member, thereby facilitating the operator to manually control the operation of the unmanned cleaning robot. When the external force is removed, under the action of gravity of the third gear 42, one end of the connecting rod 41 provided with the third gear 42 rotates downward around the support point, thereby driving the third gear 42 to move downward, so that it is meshed with the first gear 22 and the second gear 32, so that the driving assembly 3 can drive the driving wheel 2 to rotate, so that the unmanned cleaning robot can operate automatically. Among them, the connecting rod 41 is used to act as the first driving member, which is convenient for the operator to control flexibly, and the structure is simple and easy to manufacture. Of course, in order to improve the degree of automation of the unmanned cleaning robot, in other embodiments, the first driving member can also be a cylinder, and the third gear 42 is rotatably connected to the moving end of the cylinder, and the third gear 42 is driven by the cylinder to approach or move away from the first gear 22 and the second gear 32.

[0040] In order to facilitate the operator to control the unmanned cleaning robot, in one embodiment of the present application, the unmanned cleaning robot also includes a sensor and a controller, the sensor is arranged on the chassis 1, and is used to sense the force information of the drive wheel 2; the controller is arranged on the chassis 1, and the controller is electrically connected to the sensor and the drive assembly 3, and is used to control the drive assembly 3. In detail, when the operator pushes the unmanned cleaning robot to change the running direction, the sensor can sense the force information of the drive wheel 2, such as the magnitude of the torque on the two drive wheels 2, and transmit the information of the magnitude of the torque of the two drive wheels 2 to the controller. After receiving the information, the controller calculates the torque vector of the operator acting on the unmanned cleaning robot, further analyzes the torque vector, obtains the target speed of the two drive wheels 2 required by the operator, and then controls the working state of the two drive assemblies 3, such as controlling the rotation speed of each of the two drive assemblies 3, to adjust the actual speed of the two drive wheels 2 to make it close to the target speed, so as to facilitate the operator to push the unmanned cleaning robot and reduce the labor intensity of the operator.

[0041] Next, we will introduce the structure of the unmanned cleaning robot in detail. Please refer to Figure 1 and Figure 2In one embodiment of the present application, the unmanned cleaning robot further includes a scrubbing disc 51 and a second driving member 52 disposed on the chassis 1, wherein the second driving member 52 is connected to the scrubbing disc 51 and drives the scrubbing disc 51 to rotate. When the unmanned cleaning robot is working, the second driving member 52 is started to rotate the scrubbing disc 51, thereby realizing the scrubbing of the floor by the scrubbing disc 51. In order to make the structure of the unmanned cleaning robot more compact and reduce the occupied space, the scrubbing disc 51 is disposed on one side of the chassis 1, and the second driving member 52 is disposed on the side of the chassis 1 facing away from the scrubbing disc 51.

[0042] Further, the scrubbing discs 51 are provided in three groups, two of which are arranged adjacent to each other, and the other group is located on the center line of the two groups and is arranged adjacent to the two groups. It can be understood that the provision of the three groups of scrubbing discs 51 increases the scrubbing range and reduces the blind area of ​​scrubbing.

[0043] In one embodiment of the present application, the unmanned cleaning robot also includes a garbage recovery mechanism 6. The base frame 1 is provided with a mounting groove 11. The garbage recovery mechanism 6 is detachably installed in the mounting groove 11. The garbage recovery mechanism 6 is used to recover garbage on the ground.

[0044] The garbage recycling mechanism 6 is arranged on the side of the base frame 1 facing the scrubbing plate 51. In this way, when the unmanned cleaning robot is working, the particles on the bottom surface can be removed by the garbage recycling mechanism 6 first, and then the bottom surface can be scrubbed by the scrubbing plate 51 to improve the scrubbing effect of the unmanned cleaning robot.

[0045] Specifically, the garbage recycling mechanism 6 includes a blade assembly rotatably connected to the two opposite groove side walls of the mounting groove 11 and a driving motor connected to the blade assembly and fixed to the base frame 1, and bearing seats are connected to both ends of the blade assembly, and the bearing seats are fixed to the base frame by screws, thereby realizing a detachable connection between the garbage recycling mechanism 6 and the base frame 1. When the unmanned cleaning robot is working, the driving motor drives the blade assembly to rotate so that the blades can suck away and remove the particles on the ground. In order to improve the recycling efficiency of the garbage recycling mechanism 6, the garbage recycling mechanism 6 also includes a baffle plate obliquely arranged near the mounting groove 11 of the base frame 1. When the unmanned cleaning robot is running, the baffle plate can push the particles on the ground to gather under the mounting groove 11, thereby facilitating the blade assembly to suck away and remove the particles.

[0046] Furthermore, in one embodiment of the present application, the unmanned cleaning robot also includes a front sweeping disc 71 and a third driving member 72 arranged on the base frame 1. The front sweeping disc 71 is arranged adjacent to the garbage recycling mechanism 6. The third driving member 72 is connected to the front sweeping disc 71 and drives the front sweeping disc 71 to rotate.

[0047] The front sweeping disc 71 is located on the side of the garbage recycling mechanism 6 away from the scrubbing disc 51. When the unmanned cleaning robot is working, the third driving member 72 is started, and the front sweeping disc 71 is driven to rotate by the third driving member 72, so that the particles on the bottom surface can be further removed. In order to facilitate the garbage recycling mechanism 6 to recycle garbage, two groups of front sweeping discs 71 and third driving member 72 are provided, and are respectively located on opposite sides of the garbage recycling mechanism 6. Such a configuration allows the garbage to be gathered between the two front sweeping discs 71 after being swept by the two front sweeping discs 71, which is convenient for the recycling and removal of the garbage recycling mechanism 6, thereby improving the working efficiency of the unmanned cleaning robot. Furthermore, the third driving member 72 is electrically connected to the controller to reduce manual operation steps and improve the degree of automation of the unmanned cleaning robot.

[0048] To improve the environmental friendliness of unmanned cleaning robots, please refer to Figure 1 In one embodiment of the present application, the unmanned cleaning robot further includes a sewage tank 81, a water suction motor, and a sewage recovery channel. The sewage tank 81 is arranged on the base frame 1, the water suction motor is arranged in the sewage tank 81, the water inlet end of the sewage recovery channel is arranged on the side of the base frame 1 where the scrubbing plate 51 is arranged, and the water outlet end of the sewage recovery channel is connected to the sewage tank 81. The water suction motor makes the sewage tank 81 in a negative pressure state, and then under the action of the external atmospheric pressure, the sewage on the ground is squeezed into the water inlet end of the sewage recovery channel, and enters the sewage tank 81 from the water outlet end of the sewage recovery channel, thereby realizing the recovery of sewage. In order to reduce the height of the base frame 1 and the ground, the sewage tank 81 is arranged on the side of the base frame 1 away from the scrubbing plate 51.

[0049] For further information, please refer to Figure 1 and Figure 2 In one embodiment of the present application, the unmanned cleaning robot further includes a wiper blade 82, which is connected to a side of the chassis 1 facing the scrubbing plate 51 and is disposed adjacent to a water inlet end of the sewage recovery channel.

[0050] Specifically, the wiper blade 82 is located on the side of the scrubbing plate 51 away from the garbage recycling mechanism 6. In this way, after the scrubbing plate 51 scrubs the ground, the wiper blade 82 can scrape the sewage on the ground to gather it, thereby facilitating the unmanned cleaning robot to recycle the sewage. In order to improve the water-hanging effect of the water-hanging blade, the wiper blade 82 can be set to an arc-shaped structure, and the arc-shaped opening faces the scrubbing plate 51. The arc-shaped wiper blade 82 allows the sewage to be better gathered at the water inlet end of the sewage recycling channel. Of course, in other embodiments, the wiper blade 82 can also be a triangular structure or a U-shaped structure, etc., which is not limited in this application.

[0051] In order to reuse the sewage, in one embodiment of the present application, the unmanned cleaning robot also includes a sewage treatment box 83 arranged on the chassis 1, the sewage treatment box 83 is connected to the sewage tank 81, and a filter is arranged in the sewage treatment box 83; it can be understood that the sewage can be purified by the filter in the sewage treatment box 83 so that it can be reused, reducing the waste of water resources. In order to improve the purification effect of sewage, the filter includes multiple groups of filter cores, specifically five groups, and the purification effect of sewage is guaranteed by the successive filtration of the five groups of filter cores. Of course, in other embodiments, the filter cores can also be three groups, four groups, six groups, etc. This application does not limit this, and it is sufficient to ensure the purification effect of sewage.

[0052] In one embodiment of the present application, the unmanned cleaning robot also includes a clean water tank 84 arranged on the chassis 1, and the water outlet of the clean water tank 84 is arranged adjacent to the scrubbing plate. In order to enable the unmanned cleaning robot to realize water circulation, the sewage tank 81 is provided with a water outlet, and is connected to the clean water tank 84 through the water outlet. In detail, the water in the clean water tank 84 is recovered through the sewage tank 81 after scrubbing the bottom surface, and then enters the sewage treatment box 83 for purification, and then enters the clean water tank 84 for reuse after purification. Such recycling saves the water consumption of the unmanned cleaning robot and improves the environmental protection of the unmanned cleaning robot. In one embodiment of the present application, the clean water tank 84 is arranged on the side of the chassis away from the scrubbing plate 51, the sewage tank 81 is arranged on the side of the clean water tank 84 away from the chassis 1, and the sewage treatment box 83 is arranged between the sewage tank 81 and the clean water tank 84. It can be understood that such a setting makes the structure between the three compact, reduces the occupied space, and also improves the appearance of the unmanned cleaning robot. Furthermore, the sewage tank 84 , the sewage treatment box 83 and the clean water tank 84 are arranged in sequence from top to bottom, so that the sewage in the sewage tank 84 can enter the sewage treatment box 83 , and the purified water in the sewage treatment box 83 can enter the clean water tank 84 .

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An unmanned cleaning robot, characterized in that: include: chassis; A driving wheel, the driving wheel is rotatably disposed on the base frame, the driving wheel is convexly provided with a first rotating shaft, and the driving wheel is configured to drive the unmanned cleaning robot to move; A driving assembly connected to the base frame, the driving assembly comprising a second rotating shaft disposed adjacent to the first rotating shaft; and A connecting component, the connecting component is connected to the base frame and is located between the second rotating shaft and the first rotating shaft, and is used to conduct or disconnect the transmission between the second rotating shaft and the first rotating shaft; The driving wheel, the driving assembly and the connecting assembly are provided in two groups and are arranged on two opposite sides of the base frame; The first rotating shaft sleeve is provided with a first gear, the second rotating shaft sleeve is provided with a second gear, the connecting assembly comprises a first driving member and a third gear connected to the first driving member, and the first driving member is connected to the base frame; The first driving member drives the third gear to approach or move away from the first gear and the second gear, so that the third gear is engaged with or disengaged from the first gear and the second gear; The first driving member is a connecting rod, the connecting rod is rotatably connected to the base frame, and the third gear is rotatably connected to one end of the connecting rod; The first gear and the second gear are arranged side by side and spaced apart in a horizontal direction intersecting the axis of the first gear and the second gear, and the third gear is arranged above the first gear and the second gear and located between the first gear and the second gear; The third gear is disposed at the lower end of the connecting rod, and the middle part is rotatably connected to the bottom frame, so that when an external force acts on the end of the connecting rod away from the third gear, the end of the connecting rod provided with the third gear can be driven to rotate upward, driving the third gear to move upward and disengage from the first gear and the second gear; when the external force is removed, under the action of the gravity of the third gear, the end of the connecting rod provided with the third gear rotates downward, driving the third gear to move downward and engage with the first gear and the second gear; The unmanned cleaning robot further comprises a sensor and a controller, wherein the sensor is arranged on the chassis, and when an operator pushes the unmanned cleaning robot to move and the connecting component conducts the transmission between the second rotating shaft and the first rotating shaft, the sensor is used to sense the torque magnitude information of the driving wheel; The controller is disposed on the base frame, and is electrically connected to the sensor and the drive assembly. The controller is used to calculate the torque vector applied by the operator to the unmanned cleaning robot according to the torque magnitude information of the drive wheel to obtain the target speed of the drive wheel, and control the drive assembly to adjust the speed of the drive wheel to match the target speed.

2. The unmanned cleaning robot according to claim 1, characterized in that: The unmanned cleaning robot further comprises a scrubbing disc and a second driving member arranged on the base frame, wherein the second driving member is connected to the scrubbing disc and drives the scrubbing disc to rotate.

3. The unmanned cleaning robot according to claim 1, characterized in that: The unmanned cleaning robot also includes a garbage recovery mechanism. The base frame is provided with a mounting groove. The garbage recovery mechanism is detachably mounted in the mounting groove. The garbage recovery mechanism is used to recover garbage on the ground.

4. The unmanned cleaning robot according to claim 3, characterized in that: The unmanned cleaning robot also includes a front sweeping disc and a third driving member arranged on the base frame. The front sweeping disc is arranged adjacent to the garbage recycling mechanism. The third driving member is connected to the front sweeping disc and drives the front sweeping disc to rotate.

5. The unmanned cleaning robot according to claim 2, characterized in that: The unmanned cleaning robot also includes a sewage tank, a water suction motor and a sewage recovery channel. The sewage tank is arranged on the base frame, the water suction motor is arranged in the sewage tank, the water inlet end of the sewage recovery channel is arranged on the side of the base frame facing the scrubbing plate, and the water outlet end of the sewage recovery channel is connected to the sewage tank.

6. The unmanned cleaning robot according to claim 5, characterized in that: The unmanned cleaning robot further comprises a wiper blade, which is connected to a side of the chassis facing the scrubbing plate and is arranged adjacent to a water inlet end of the sewage recovery channel.

7. The unmanned cleaning robot according to claim 5, characterized in that: The unmanned cleaning robot further comprises a sewage treatment box arranged on the chassis, the sewage treatment box is connected to the sewage tank, and a filter is arranged in the sewage treatment box; And / or, the unmanned cleaning robot further comprises a clean water tank disposed on the base frame, and a water outlet end of the clean water tank is disposed adjacent to the scrubbing plate.

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