Cleaning devices

Abstract

The embodiments of the present disclosure provide a cleaning device. The cleaning device comprises a body and travel wheels. The cleaning device further comprises a clutch mechanism and a pull rod mechanism. The clutch mechanism is engaged with or disengaged from the travel wheels. The pull rod mechanism is disposed on the body and capable of telescoping along a length direction. The cleaning device has at least an automatic traveling mode and a push-pull traveling mode. In response to determining that the cleaning device is in the automatic traveling mode, the pull rod mechanism retracts along a length direction of the pull rod mechanism. In response to determining that the cleaning device is in the push-pull traveling mode, the pull rod mechanism extends along the length direction of the pull rod mechanism. An operator can conveniently push and pull the cleaning device to a required position.

What is claimed is: 
     
         1 . A cleaning device, comprising a body and travel wheels, wherein the cleaning device further comprises a clutch mechanism and a pull rod mechanism, the clutch mechanism is engaged with or disengaged from the travel wheels, the pull rod mechanism is disposed on the body and capable of telescoping along a length direction;
 the cleaning device has at least an automatic traveling mode and a push-pull traveling mode, in response to determining that the cleaning device is in the automatic traveling mode, the pull rod mechanism retracts along a length direction of the pull rod mechanism; in response to determining that the cleaning device is in the push-pull traveling mode, the pull rod mechanism extends along the length direction of the pull rod mechanism.   
     
     
         2 . The cleaning device of  claim 1 , wherein the clutch mechanism includes a driving device and a switching device, the switching device is disposed between the driving device and the travel wheels, the switching device has a first operation state and a second operation state, in response to determining that the switching device is in the first operation state, the switching device cooperates with the driving device such that the driving device and the travel wheels are in transmission connection; in response to determining that the switching device is in the second operation state, the switching device is disengaged from the driving device, and the driving device and the travel wheels are disengaged from the transmission connection. 
     
     
         3 . The cleaning device of  claim 1 , wherein each of the travel wheels includes a wheel body and a wheel shaft, the wheel body is coaxially fixed on the wheel shaft, the driving device includes at least a driving member, and the driving member is capable of sleeving the wheel shaft in a relative rotation manner;
 the switching device includes a switching member, the switching member sleeves the wheel shaft and is capable of rotating synchronously with the wheel shaft, one of the switching member and the driving member is provided with protrusions, and the other of the switching member and the driving member is provided with accommodation portions, in response to determining that the switching device is in the first operation state, the protrusions are embedded in the accommodation portions; and in response to determining that the switching device is in the second operation state, the protrusions are disengaged from the accommodation portions.   
     
     
         4 . The cleaning device of  claim 3 , wherein the protrusions and the accommodation portions are arranged on axial end surfaces of the driving member and the switching member facing each other, respectively, and the switching member and the driving member are capable of moving relative to each other along an axial direction of the wheel shaft, so that the switching device is capable of switching between the first operation state and the second operation state. 
     
     
         5 . The cleaning device of  claim 4 , wherein the switching member is capable of slidably sleeving the wheel shaft along the axial direction of the wheel shaft, the wheel shaft includes a first shaft section and a second shaft section which are coaxially connected, and the driving member is disposed on the second shaft section in a relative rotation manner, and the switching member is capable of slidably sleeving the first shaft section along the axial direction of the wheel shaft; wherein
 the first shaft section includes a synchronous connection shaft section and a rotation connection shaft section, the synchronous connection shaft section is disposed between the rotation connection shaft section and the second shaft section, the switching member and the wheel body are respectively arranged on two different sides of the driving member, in response to determining that the switching device is in the first operation state, the switching member sleeves the synchronous connection shaft section to rotate synchronously with the wheel shaft; and in response to determining that the switching device is in the second operation state, the switching member sleeves the rotation connection shaft section to rotate relative to the wheel shaft.   
     
     
         6 . The cleaning device of  claim 5 , wherein a stop member is fixedly provided at one end of the wheel shaft away from the wheel body, in response to determining that the switching device is in the second operation state, the switching member sleeves the rotation connection shaft section to rotate relative to the wheel shaft, and the stop member cooperates with the switching member to limit an axial position of the switching member on the wheel shaft. 
     
     
         7 . The cleaning device of  claim 6 , wherein the stop member includes a connection portion and a stop portion that is disposed protruding, the connection portion is connected to the wheel shaft, the stop portion protrudes on a side wall of the connection portion and extends outwardly along a radial direction of the wheel shaft, an end surface of the switching member opposite to the driving member is provided with an accommodation hole, the accommodation hole is coaxial with the wheel shaft, an avoidance groove is axially provided on a hole wall of the accommodation hole, the avoidance groove penetrates through an opening surface of the accommodation hole, a switching hole is circumferentially provided on the hole wall of the accommodation hole, and the switching hole is in communication with the avoidance groove;
 in response to determining that the switching member sleeves the rotation connection shaft section, the stop member is placed in the accommodation hole and the avoidance groove, and the switching member is capable of rotating relative to the wheel shaft to make the stop portion rotate into the switching hole.   
     
     
         8 . The cleaning device of  claim 7 , wherein an elastic member is disposed in the accommodation hole, one end of the elastic member abuts against the stop member, and the other end of the elastic member abuts against a bottom surface of the accommodation hole. 
     
     
         9 . The cleaning device of  claim 3 , further comprising a housing, wherein the wheel shaft is rotatably connected to the housing, a first limiting step protrudes from the housing, a second limiting step protrudes from a side wall of the switching member, the first limiting step is located on a side of the second limiting step away from the driving member, and in response to determining that the switching device is in the second operation state, the first limiting step abuts against the second limiting step. 
     
     
         10 . The cleaning device of  claim 3 , wherein at least two of the protrusions are arranged on an end surface of the switching member; a ring groove is circumferentially provided on the end surface of the switching member facing the driving member, and at least two limiting portions protrude and are spaced apart on a side wall of the ring groove, the at least two limiting portions extend along an axis of the wheel shaft, each of the accommodation portion is formed between two adjacent limiting portions of the at least two limiting portions, and at least two of the protrusions are arranged in at least two of the accommodation portions in a one-to-one correspondence manner. 
     
     
         11 . The cleaning device of  claim 3 , wherein the driving device includes a motor, a driving wheel, a driven wheel, and a synchronous belt tensioned between the driving wheel and the driven wheel, the driven wheel coaxially and rotatably sleeves the wheel shaft, the motor is configured to drive the driving wheel to rotate, and the driven wheel forms the driving member. 
     
     
         12 . The cleaning device of  claim 3 , further comprising a housing, wherein the wheel shaft is rotatably connected to the housing, a rotation base is provided at a bottom of the body, an adjustment rotation shaft is connected to the rotation base, the adjustment rotation shaft is parallel to the bottom surface of the body, and the housing is rotatably connected to the adjustment rotation shaft. 
     
     
         13 . The cleaning device of  claim 12 , further comprising a tension spring, wherein one end of the tension spring is connected to the body, and the other end of the tension spring is connected to the housing. 
     
     
         14 . The cleaning device of  claim 13 , further comprising a connection member, wherein the connection member is connected to the body, a slideway is provided on the connection member, the slideway extends in a direction perpendicular to the adjustment rotation shaft, the housing is at least partially located in the slideway and capable of sliding along the slideway. 
     
     
         15 . The cleaning device of  claim 1 , wherein the pull rod mechanism includes a push-pull component slidably connected with the body, and one end of the push-pull component is rotatably provided on the body around a rotation center line; the push-pull component has an open state extended relative to the body, and a retracted state retracted relative to the body; the push-pull component is provided with at least a handle for holding and operating, and in response to determining that the push-pull component is in the open state, the handle is higher than the body. 
     
     
         16 . The cleaning device of  claim 15 , wherein a guide component configured to provide sliding guidance for the push-pull component is provided on the body, the push-pull component is connected with the guide component in a sliding cooperation manner, the push-pull component is provided with a first end portion and a second end portion which are respectively arranged at two different ends of the length direction, the handle is disposed on the first end portion, and the second end portion is connected with the guide component around the rotation center line. 
     
     
         17 . The cleaning device of  claim 16 , wherein the guide component is provided with a slide groove extending along a length direction of the guide component, the second end portion is provided with a rotation shaft, the rotation shaft is fixedly disposed on the second end portion or rotatably disposed on the second end portion around an axis of the rotation shaft, the rotation shaft penetrates the slide groove in a sliding cooperation manner, and the axis of the rotation shaft forms the rotation center line; wherein a guide direction of the guide component extends along a horizontal direction, or extends along a vertical direction, or is set at an angle to the horizontal direction. 
     
     
         18 . The cleaning device of  claim 15 , wherein the body is provided with an accommodation cavity and an opening communicated with the accommodation cavity, and the push-pull component is capable of extending from the opening to the outside of the body, or accommodating from the opening into the accommodation cavity. 
     
     
         19 . The cleaning device of  claim 18 , further comprising a cover plate for blocking the opening, wherein the cover plate is rotatably connected to the body, or the cover plate is slidably connected to the body, or the cover plate is detachably connected to the body. 
     
     
         20 . The cleaning device of  claim 15 , further comprising a pull cover, wherein the pull cover is rotatably connected to the machine body around the rotation center line, the push-pull component is arranged on the pull cover and capable of rotating with the pull cover around the rotation center line relative to the body, such that the pull cover and the push-pull component are opened or closed relative to the body together; in response to determining that the pull cover is closed relative to the body, the push-pull component is accommodated in an accommodation space formed between the pull cover and the body.