CN210284171U - Automobile cleaning device - Google Patents

Abstract

The utility model provides an automobile cleaning device, spray set is linked together with the washing water source, the crossbeam sets up on the guide rail, spray set and dry the device and install on the crossbeam with wiping, electric appliance control portion passes through circuit and driving motor, spray set and dry the device and be connected, dry the cloth and hang on the horizontal pole of crossbeam below, the other end contact automobile body surface of dry the cloth, spray set includes top spray lance and left vertical spray lance and right vertical spray lance, the top spray lance is connected on the elevating system of crossbeam, each shower nozzle on top spray lance and two vertical spray lances is installed on the spray lance that corresponds through rotary joint respectively, each shower nozzle is connected with the rotating electrical machines, the rotating electrical machines is connected with electric appliance control portion. The advantages are that: the functions of cleaning, wiping and water treatment are perfect, the equipment structure is simple and compact, the water-saving and energy-saving effects are outstanding, and the full-automatic unmanned car washing operation can be realized.

Description

Automobile cleaning device

Technical Field

The utility model relates to a car washing equipment makes technical field, especially indicates an automobile cleaning device that can use water under high pressure to wash the car surface and cyclic utilization carwash and solid phase material.

Background

The traditional Chinese invention patent application with the application number of 201710316912.3 named as 'a car washing method' discloses a movable integrated car washer, which comprises a control system, a frame, a water circulation system and a car washing system, wherein the invention limits a car to be washed through four positioning assemblies. The clean water pump and the sewage pump are started, the sewage in the sewage tank is pumped into the clean water tank after being purified, and the clean water tank supplies water to each water outlet point of the car washing system. The portal frame moves along the guide rail under the driving of the traveling motor. The upper part of the vehicle is cleaned by the transverse brush; the vertical brush is used for cleaning the head part, the tail part and two sides of the vehicle; the lower parts of two sides of the vehicle are cleaned by the vertical small brush; and drying the cleaned vehicle by an air knife. The invention can recycle sewage and is suitable for a transportable car washing device, however, the effect of high-pressure water washing of the car washing machine is influenced by the distance factor between the spray head and the car body, and the car washing machine also has the defects of poor washing effect, unreasonable mechanical structure, large water resource consumption and high energy consumption, so the structure of the car washing machine needs to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem that provide one kind to above-mentioned prior art current situation with water under high pressure washing, dry the function integration on a crossbeam support body, can cyclic utilization carwash and solid phase material, clean energy consumption is low, the effectual car belt cleaning device of car surface cleaning.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this car cleaning device, including electrical apparatus control part, crossbeam, spray set and dry device, spray set is linked together with the washing water source, the crossbeam sets up on the guide rail through drive motor function seesaw, spray set and dry device are installed on the crossbeam, electrical apparatus control part is connected with drive motor, spray set and dry device through the circuit, and the one end of the cloth of drying the device hangs on the horizontal pole of crossbeam below, and the other end of the cloth of drying can be flagging and contact automobile body surface below the crossbeam by gravity, its characterized in that: the spraying device comprises a top spray rod horizontally arranged and a left vertical spray rod and a right vertical spray rod which are respectively fixed at the end parts of the cross beams, the top spray rod can be connected to a lifting mechanism of the cross beams in a vertically moving mode relative to the cross beams, all spray heads on the top spray rod and the two vertical spray rods are respectively installed on corresponding spray rod bodies through respective rotary joints, all the spray heads are connected with a rotary motor in a transmission mode, the rotary motor is connected with an electric appliance control part through a circuit, and the rotary motor drives the corresponding spray rods to swing back and forth relative to the spray heads.

As an improvement, the top spray rod is provided with three groups of spray heads: the spray nozzles of the outer spray nozzle and the inner spray nozzle form a reverse acute angle relative to the direction of the positive spray nozzle in the cross section of the spray rod; the spray heads of the left vertical spray rod and the right vertical spray rod face the side face of the vehicle body; the spray heads on the top spray rod, the left vertical spray rod and the right vertical spray rod are respectively connected into an integral structure and then are in transmission connection with corresponding rotating motors.

The improved structure is characterized in that each spray head on the top spray rod, the left vertical spray rod and the right vertical spray rod is respectively provided with an air cylinder for controlling the corresponding spray head nozzle to open and close, the air cylinder is installed on the pipe wall of a rotary joint opposite to the corresponding spray head nozzle, the air cylinder and the corresponding spray head nozzle are coaxially arranged, and an air cylinder rod of the air cylinder can extend out of the air cylinder body to block the corresponding spray head nozzle.

As an improvement, the electric control part comprises a measuring sensor which is arranged on the cross beam and can measure the height of the vehicle body at any cross section of the vehicle body, and the electric control part can control the lifting of the top spray rod and the movement speed of the cross beam according to the height of each position of the vehicle body.

As an improvement, the lifting mechanism comprises a left vertical optical axis and a right vertical optical axis which are respectively arranged at two ends of the beam, a soft rope, a winding wheel arranged at the upper part of the beam and a lifting motor; the end part of the top spray rod is respectively sleeved on the left vertical optical axis and the right vertical optical axis, the top spray rod is connected with a winding wheel through a soft rope, the winding wheel is fixed with the output shaft of the lifting motor in the same shaft, and the lifting motor can drive the top spray rod to lift through winding and unwinding the soft rope.

As the improvement, spray set is linked together through pipeline and the washing water source that adds with the solid phase material, specifically does, top spray lance, left vertical spray lance and right vertical spray lance all are linked together through the carwash water pipe with booster pump, clear water jar, solid phase material jar, the department of intercommunication of solid phase material jar and carwash water pipe is provided with the switching valve, the switching valve is connected with electrical apparatus control portion through the circuit.

The automobile cleaning device is further improved, and further comprises a reclaimed water recycling device, wherein the spraying device is communicated with the reclaimed water recycling device through a pipeline, specifically, the reclaimed water recycling device is composed of a wastewater collecting pool, a sewage pump, a silt removing part, a reclaimed water tank, a booster pump, a clean water tank, a solid-phase material tank and a car washing water pipe, and the reclaimed water tank and the clean water tank are communicated with corresponding spray heads through the car washing water pipe and the booster pump; a discharge port is formed in the lower part of the solid-phase material tank and is communicated with a car washing water pipe, a feeding screw is arranged in the inner cavity of the solid-phase material tank, a helical blade is arranged on the lower part of a rod body of the feeding screw, one end of the feeding screw extends into the discharge port, and the other end of the feeding screw is in transmission connection with a feeding motor; the connecting position of the discharge port of the solid-phase material tank and the car washing water pipe is positioned on the car washing water pipe in front of the booster pump.

The solid-phase material added in the solid-phase material tank is plant particles, and the size of the particles is not more than 0.9 time of the equivalent aperture of a nozzle of the spray head and not less than 100 microns; or, the solid phase material is activated carbon powder or particles of non-metallic minerals, and the particles of the non-metallic minerals are as follows: talcum powder, graphite powder or sepiolite powder, the size of the particle is not more than 0.85 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is elastic high molecular material or powder of a product thereof, or elastic particles with a closed air hole structure, and the size of the particles is not more than 1.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or, the solid phase material is an open-cell skeleton structure particle, and the open-cell skeleton structure particle is: open-cell foam particles or sponge particles, the size of the particles being not more than 2.5 times the equivalent aperture of the nozzle orifice and not less than 100 microns; or the solid phase material is cloth piece particles, and the size of the particles is not more than 2.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or, the solid phase material is a fiber, the fiber is a plant fiber, a chemical fiber or other artificial fiber, and the length of the fiber is not more than 4.5 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is a modified material formed by mixing and processing the above materials, and the particle size of the solid phase material is not more than 4.5 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns.

The improved structure of the wiping device is that the rotating shaft can rotate around the axis of the rotating shaft under the drive of the second motor, the two ends of a cross rod for hanging the wiping cloth are hung on the rotating shaft in a U-shaped structure, the two ends of the cross rod are respectively connected to the rotating shaft through corresponding one-way bearings, when the rotating shaft rotates along the locking direction of the one-way bearings, the cross rod drives the wiping cloth to be wound on the rotating shaft, the rotating shaft is further provided with a first driving mechanism capable of driving the wiping cloth to swing back and forth and a second driving mechanism capable of driving the wiping cloth to swing left and right, and the cross beam is further provided with a cleaning mechanism for cleaning the wiping cloth when the wiping cloth is wound.

As an improvement, the steps of utilizing the automobile cleaning device to carry out automobile cleaning operation are as follows:

firstly, driving an automobile into a cleaning field and stopping, enabling a cross beam to pass through the automobile from the upper part, and spraying a vehicle cleaning solution to an automobile body;

secondly, the cross beam passes through the upper part of the automobile, and the electric appliance control part measures the outline of the automobile, stores and calculates to obtain an automobile outline curve required by the lifting control of the top spray rod;

thirdly, high-pressure flushing: the cross beam passes through the upper part of the automobile according to the second step, the booster pump is started, a channel from the reclaimed water tank to a car washing water pipe is started, the feeding motor is started, the booster pump sucks a solid-liquid mixture formed by mixing reclaimed water and solid-phase materials, and the solid-liquid mixture is sprayed onto the surface of the automobile through the spray head to peel off dirt attached to the automobile body; in the process, when the head or the tail of the vehicle is washed, the inner side spray head or the outer side spray head close to one side of the head or the tail of the vehicle is opened, and the positive spray head of the top spray rod is closed;

fourthly, rinsing at middle and low pressure: starting a booster pump, closing a channel from a reclaimed water tank to a vehicle washing water pipe, starting a channel from a clean water tank to the vehicle washing water pipe, and closing a feeding motor, so that the booster pump sucks clean water, and the clean water is sprayed to the surface of a vehicle through a spray head to remove residual dirt, solid-phase materials and sewage on a vehicle body;

fifthly, wiping water stains: the wiping device releases the wiping cloth originally wound on the rotating shaft to a suspension state, the cross beam passes above the automobile, or the cross beam keeps still and the automobile passes below the cross beam, and the wiping cloth wipes the automobile body in a swinging mode under the action of the first driving mechanism and the second driving mechanism to remove water stains;

and sixthly, after cleaning is finished, the automobile leaves the cleaning place, the rotating shaft rotates at a low speed to roll the wiping cloth on the rotating shaft, then clean water is introduced into the inner cavity of the rotating shaft, meanwhile, the rotating shaft rotates at a high speed in the inner cavity of the cleaning mechanism to rinse the wiping cloth, then the wiping cloth is dried, the cleaning operation of the wiping cloth is finished, and the automobile enters a standby state before next automobile washing.

Compared with the prior art, the utility model has the advantages of: the side spray rod is fixed and only needs to do motion control of the top spray rod, the measurement and motion control requirements are simplified, and the spraying device and the wiping device are integrally designed and are all arranged on the frame body of the same cross beam 2, so the structure is very simple, compact and reliable, the occupied space is small, and the manufacturing cost is low; the equipment has low cleaning water pressure and outstanding effect, has automatic operation capabilities of wiping, air drying and the like, can treat and recycle the car washing wastewater, realizes the automatic recovery and addition of solid phase materials, has powerful and perfect comprehensive functions and very strong practicability, is particularly suitable for the full-automatic unmanned car washing operation, and has obvious effects of water saving, electricity saving and emission reduction.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the top spray bar lift mechanism of FIG. 1;

FIG. 3 is a schematic view of the spray head configuration of the top spray bar of FIG. 1;

FIG. 4 is a schematic structural view of a radial cross section of the top spray bar of FIG. 3;

FIG. 5 is a schematic view of an open/close control structure of the head of FIG. 1;

FIG. 6 is a schematic structural view of a reclaimed water recycling device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of the solid material tank of FIG. 6;

FIG. 8 is a schematic view of the overall construction of the drive mechanism associated with the wipe of FIG. 1;

FIG. 9 is a schematic structural view of the first drive mechanism of FIG. 8;

FIG. 10 is a schematic structural view of the second drive mechanism of FIG. 8;

FIG. 11 is a schematic illustration of the second drive mechanism of FIG. 10 after pulling on the pull-cord;

FIG. 12 is a schematic view of the second drive mechanism of FIG. 10 after reverse disengagement of the third and fourth gears;

fig. 13 is a schematic view of a lower cover driving mechanism of the cleaning mechanism according to the embodiment of the present invention;

fig. 14 is a schematic structural view of the lower cover of fig. 13 after being opened.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the cleaning place adopted in this embodiment is a backward type structure, the car is parked in a frame-type car washing room after driving in, and after cleaning and wiping are completed, the car is driven away in a backward manner, and the entrance of the car washing room is also the exit.

As shown in fig. 1 to 14, the automobile cleaning device of the present embodiment includes an electrical appliance control part 1, a beam 2, a spraying device and a wiping device, the spraying device is communicated with a cleaning water source, the beam 2 is disposed on a guide rail 21 through a driving motor 11 in a way of moving back and forth, the spraying device and the wiping device are mounted on the beam 2, the electrical appliance control part 1 is connected with the driving motor 11, the spraying device and the wiping device through a line, one end of a wiping cloth 233 of the wiping device is suspended on a cross bar 61 below the beam 2, the other end of the wiping cloth 233 can droop under gravity to contact the surface of the automobile body below the beam 2, the spraying device includes a top spray rod 31 disposed horizontally and a left vertical spray rod 32 and a right vertical spray rod 33 respectively fixed at the end of the beam 2, the top spray rod 31 can be connected on a lifting mechanism 22 of the beam 2 in a way of moving up and, the top spray rod 31 and the spray heads on the two vertical spray rods are respectively arranged on the corresponding spray rod bodies through respective rotary joints, each spray head is in transmission connection with a rotary motor, the rotary motor is connected with the electric appliance control part 1 through a circuit, and the rotary motor drives the corresponding spray heads to swing back and forth relative to the corresponding spray rods.

Three groups of spray heads are arranged on the top spray rod 31: a positive spray head 312 with downward spray openings, an inner spray head 311 positioned on the front side wall of the top spray rod 31 and an outer spray head 313 positioned on the rear side wall of the top spray rod 31, wherein the spray openings of the outer spray head 313 and the inner spray head 311 form a reverse acute angle relative to the orientation of the positive spray head 312 in the cross section of the spray rod 31; the spray heads of the left vertical spray rod 32 and the right vertical spray rod 33 face the side face of the vehicle body; the spray heads on the top spray rod 31, the left vertical spray rod 32 and the right vertical spray rod 33 are respectively connected into an integral structure and then are in transmission connection with corresponding rotating motors. And each spray head on the top spray rod 31, the left vertical spray rod 32 and the right vertical spray rod 33 is respectively provided with an air cylinder for controlling the opening and closing of the corresponding spray head nozzle, the air cylinder is arranged on the pipe wall of the rotary joint opposite to the corresponding spray head nozzle, the air cylinder and the corresponding spray head nozzle are coaxially arranged, and the air cylinder rod of the air cylinder can extend out of the air cylinder body to block the corresponding spray head nozzle.

The electrical appliance control part 1 comprises a measuring sensor which is arranged on the cross beam 2 and can measure the height of the vehicle body at any cross section of the vehicle body, and the electrical appliance control part 1 can control the lifting of the top spray rod 31 and the movement speed of the cross beam 2 according to the height of each position of the vehicle body. The specific circuit structure of the electrical appliance control part 1 belongs to the prior art, and therefore, the detailed description is not given.

The lifting mechanism 22 comprises a left vertical optical axis 221 and a right vertical optical axis 222 which are respectively arranged at two ends of the beam 2, a soft rope 223, a winding wheel 224 arranged at the upper part of the beam 2 and a lifting motor 225; the end parts of the top spray rod 31 are respectively sleeved on the left vertical optical axis 221 and the right vertical optical axis 222, the top spray rod 31 is connected with the winding wheel 224 through a soft rope 223, the winding wheel 224 is coaxially fixed with an output shaft of the lifting motor 225, and the lifting motor 225 can drive the top spray rod 31 to lift through winding and unwinding the soft rope 223. Spray set is linked together through the pipeline with the washing water source that adds solid phase material, specifically does, top spray lance 31, left vertical spray lance 32 and right vertical spray lance 33 all are linked together through carwash water pipe 37 with booster pump 34, clear water jar 35, solid phase material jar 36, the intercommunication department of solid phase material jar 36 and carwash water pipe 37 is provided with the on-off valve, the on-off valve is connected with electrical apparatus control portion 1 through the circuit.

The automobile cleaning device also comprises a reclaimed water recycling device, the spraying device is communicated with the reclaimed water recycling device through a pipeline, specifically, the reclaimed water recycling device is composed of a wastewater collecting tank 51, a sewage pump 52, a silt removing part 53, a reclaimed water tank 54, a booster pump 34, a clean water tank 35, a solid-phase material tank 36 and a car washing water pipe 37, and the reclaimed water tank 54 and the clean water tank 35 are communicated with corresponding spray heads through the car washing water pipe 37 and the booster pump 34; a discharge port 361 is formed in the lower portion of the solid-phase material tank 36, the discharge port 361 is communicated with the car washing water pipe 37, a feeding screw 362 is arranged in an inner cavity of the solid-phase material tank 36, a helical blade is arranged on the lower portion of a rod body of the feeding screw 362, one end of the feeding screw 362 extends into the discharge port 361, and the other end of the feeding screw 362 is in transmission connection with a feeding motor 363; the connection position of the discharge port 361 of the solid-phase material tank 36 and the car washing water pipe 37 is positioned on the car washing water pipe 37 in front of the booster pump 34. The solid material tank 36 is provided with a filter 364, the filter 364 can intercept solid materials, and the treated water entering the inner cavity of the filter 364 does not contain solid materials, so that the water in the reclaimed water tank 54 does not contain solid materials, and the further water quality treatment of the reclaimed water tank 54 is facilitated. The silt removing part 53 adopts a cyclone, the specific structure of which belongs to the existing mature technology and is not described in detail, an oil remover 59 is arranged between the solid-phase material tank 36 and the reclaimed water tank 54 to implement oil-water separation processes such as oil removal, oil separation and the like, oil stains in wastewater can be separated by using the technical principles such as oil-water standing and layering, air floatation oil removal and the like, and the specific structure of the oil remover belongs to the prior art and is not described in detail.

The utility model discloses the "solid phase material" that calls in refers to and is used for promoting the car washing effect and the artificial solid medium that adds, and its hardness is less than the paint on vehicle surface usually, and its density is less than the adnexed silt particle of automobile body, and its size sets for according to the washing needs, and the solid phase material that adds in the solid phase material jar 36 is the plant granule, and the size of granule is not more than 0.9 times of shower nozzle spout equivalent aperture and is not less than 100 microns; or, the solid phase material is activated carbon powder or particles of non-metallic minerals, and the particles of the non-metallic minerals are as follows: talcum powder, graphite powder or sepiolite powder, the size of the particle is not more than 0.85 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is elastic high molecular material or powder of a product thereof, or elastic particles with a closed air hole structure, and the size of the particles is not more than 1.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or, the solid phase material is an open-cell skeleton structure particle, and the open-cell skeleton structure particle is: open-cell foam particles or sponge particles, the size of the particles being not more than 2.5 times the equivalent aperture of the nozzle orifice and not less than 100 microns; or the solid phase material is cloth piece particles, and the size of the particles is not more than 2.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or, the solid phase material is a fiber, the fiber is a plant fiber, a chemical fiber or other artificial fiber, and the length of the fiber is not more than 4.5 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is a modified material formed by mixing and processing the above materials, and the particle size of the solid phase material is not more than 4.5 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns.

The wiping device has the specific structure that the rotating shaft 23 can rotate around the axis of the rotating shaft under the driving of the second motor 24, the two ends of the cross rod 61 for hanging the wiping cloth 233 are hung on the rotating shaft 23 in a U-shaped structure, the two ends of the cross rod 61 are respectively connected to the rotating shaft 23 through corresponding one-way bearings, when the rotating shaft 23 rotates along the locking direction of the one-way bearings, the cross rod 61 drives the wiping cloth 233 to wind on the rotating shaft 23, the rotating shaft 23 is also provided with a first driving mechanism 231 capable of driving the wiping cloth 233 to swing back and forth and a second driving mechanism 232 capable of driving the wiping cloth 233 to swing left and right, and the cross beam 2 is also provided with a cleaning mechanism for cleaning the wiping cloth during the winding of the wiping cloth 233.

The first driving mechanism 231 capable of driving the wiping cloth 233 to swing back and forth and the rotating shaft 23 are in transmission connection with each other: a deflector rod 41 is horizontally arranged below the cross beam 2, the deflector rod 41 is hung on a fixed shaft on the cross beam 2 through two guide rods 48 at the end parts, the guide rods 48 can swing around the fixed shaft in a reciprocating manner, slide blocks 47 capable of sliding up and down along the corresponding guide rods 48 are sleeved on the guide rods 48, and the slide blocks 47 are rotatably connected with one end of a crank 46; a second gear 43 is arranged on the cross beam 2, a first gear 42 is sleeved on the rotating shaft 23 corresponding to the second gear 43, and the first gear 42 and the second gear 43 are mutually meshed; the other end of the crank 46 is rotatably connected with the second gear 43 through a one-way bearing, or the first gear 42 is connected with the rotating shaft 23 through a one-way bearing; when the guide rod 48 swings counterclockwise, the guide rod 48 can drive the shift lever 41 to abut against one side of the drying cloth 233 to raise the drying cloth 233. The point a in fig. 8 is connected to the point a shown in fig. 9, and the guide bar 48 is rotatably connected to the fixed shaft through the connection hole of the point a. As shown in fig. 9, the rotating shaft 23 drives the first gear 42 coaxially fixed thereon to rotate clockwise, and the second gear 43 drives the crank 46 coaxial with the second gear 43 to rotate counterclockwise by means of the second one-way bearing 44. As a swinging guide rod mechanism, when the crank 46 rotates continuously, the slider 47 is driven to drive the guide rod 48 to rotate back and forth around the fixed shaft of the cross beam 2, and the shift lever 41 also reciprocates along the motion track of the lower end part of the guide rod 48. When the lever 41 moves counterclockwise, it sticks to one side of the wiping cloth 233 to raise the wiping cloth 233. When the guide rod 48 drives the shift lever 41 to return clockwise, the wiping cloth 233 falls back down due to gravity and traverses the surface of the vehicle body as the cross beam 2 moves forward.

The upper end of the wiping cloth 233 is fixed on a sleeve 62, the sleeve 62 is sleeved outside the cross bar 61, and the sleeve 62 can rotate relative to the cross bar 61 and can move axially along the cross bar 61; the second driving mechanism 232 capable of driving the wiping cloth 233 to swing left and right is connected with the transmission, and the specific structure is as follows: a third gear 511 and a fourth gear 521 are fitted over the rotating shaft 23, the third gear 511 is an incomplete external gear, the third gear 511 is concentrically fixed to the rotating shaft 23, the fourth gear 521 is an incomplete internal gear, the fourth gear 521 is eccentrically fitted over the third gear 511, and internal teeth of the fourth gear 521 can mesh with external teeth of the third gear 511; one end of the sleeve 62 is connected with the fourth gear 521 through a traction rope 541, and the other end of the sleeve 62 is connected with the cross bar 61 through a return spring 551; when the fourth gear 521 is engaged with the third gear 511, the rotating shaft 23 drives the fourth gear 521 to rotate, the fourth gear 521 pulls the sleeve 62 and the wiping cloth 233 to move axially along the cross bar 61 through the pulling rope 541, and when the third gear 511 is disengaged from the fourth gear 521, the sleeve 62 is pulled to be reset by the resetting spring 551. The broken lines in fig. 10 to 12 represent the movement locus of the tooth tips of the third gear 51 and the fourth gear 52, respectively. The rotation shaft 23 rotates the third gear 511 in a clockwise direction, and the third gear 511 is engaged with the fourth gear 521 at a lower region of a line connecting intersection points of two dotted lines. Fig. 10 shows the initial position when the wiping cloth is turned to swing left and right, and then the third gear 511 first pushes the fourth gear 52 to rotate, and then pulls the pulling rope 541, one end of which is fixedly connected with the fourth gear 521, and further drives the sleeve 62 to move along the cross bar 61, and simultaneously the return spring 551 is gradually stretched and tensioned. The third gear 511 will disengage from the fourth gear 521, as shown in fig. 11, and the pulling force of the return spring 551 will return the traction sleeve 62 and bring the fourth gear 521 to rotate reversely, returning to the initial position. Since the upper end of the wiping cloth 233 is fixed on the sleeve 62, the sleeve 62 reciprocates in the transverse direction to drive the wiping cloth 233 to swing left and right in the transverse direction. In fig. 12, when the rotating shaft 23 is rotated counterclockwise, the wiping cloth 233 and the cross bar 61 are wound around the outer periphery of the rotating shaft 23 and the pulling string 541 is driven to open the angle further, so that the inner and outer teeth are disengaged.

The rotating shaft 23 is of a hollow tubular structure, the inner cavity of the rotating shaft 23 is communicated with a clean water pipeline through a pipeline, water outlet through holes which are communicated with the inner cavity of the rotating shaft and the outer surface of the rotating shaft are distributed on the rotating shaft 23, the cleaning mechanism can seal the peripheral wall of the wound wiping cloth 233, and after clean water is introduced into the inner cavity of the rotating shaft 23, the wiping cloth 233 is rolled and cleaned in the inner cavity of the cleaning mechanism. The cleaning mechanism comprises an upper cover 611 fixed on the cross beam 2, a lower cover 621 capable of rotating coaxially with the rotating shaft 23, and a driving mechanism 63 of the lower cover 621, wherein the upper cover 611 is positioned above the rotating shaft 23.

The driving mechanism 63 includes a fifth gear 631 and a sixth gear 632 sleeved on the rotating shaft 23, and a positioning pin 634, wherein the fifth gear 631 is an incomplete external gear, the fifth gear 631 is concentrically connected to the rotating shaft 23 through a one-way bearing, the sixth gear 632 is an incomplete internal gear, the sixth gear 632 is eccentrically sleeved on the fifth gear 631, the internal teeth of the sixth gear 632 can be engaged with the external teeth of the fifth gear 631, the sixth gear 632 is fixed to the lower housing 62, the positioning pin 634 is located outside the lower housing 62, the positioning pin 634 is connected to a drawing electromagnet or an air cylinder, the electromagnetic valve of the drawing electromagnet or the air cylinder is connected to the electrical control part 1, the positioning pin 634 can move back and forth relative to the cross beam 2 under the control of the electrical control part 1, when the positioning pin 634 moves back, the end of the lower housing 62 can be abutted against the positioning pin 634, when the set pin 634 moves forward, the lower cover 62 can rotate without contacting the set pin 634. Reference numeral 633 in fig. 13 and 14 denotes a one-way bearing, and the fifth gear 631 is concentrically coupled to the rotary shaft 23 through the one-way bearing. The broken lines in fig. 13 and 14 represent the movement locus of the respective tooth tips of the fifth gear 631 and the sixth gear 632.

Or, the driving mechanism 63 includes a stepping motor fixed on the beam 2, an output shaft of the stepping motor is in transmission connection with the lower cover 621, the stepping motor is connected with the electric appliance control part 1 through a circuit, and the stepping motor can drive the lower cover 621 to rotate under the control of the electric appliance control part 1.

The steps of utilizing the automobile cleaning device to carry out automobile cleaning operation are as follows:

firstly, driving the automobile into a cleaning field and stopping, enabling the cross beam 2 to pass through the automobile from the upper part, and spraying a vehicle cleaning solution to the automobile body;

secondly, the cross beam 2 passes through the upper part of the automobile, and the electric appliance control part 1 measures the outline of the automobile, stores and calculates to obtain an automobile outline curve required by the lifting control of the top spray rod 31;

thirdly, high-pressure flushing: the cross beam 2 passes through the upper part of the automobile according to the step two, the booster pump 34 is started, the channel from the reclaimed water tank 54 to the automobile washing water pipe 37 is started, the feeding motor 363 is started, the booster pump 34 sprays solid-liquid mixture formed by mixing the reclaimed water and the solid-phase material to the surface of the automobile through the spray head, and dirt attached to the automobile body is peeled; in the process, when the head or the tail of the vehicle is washed, the inner side spray nozzle 311 or the outer side spray nozzle 313 close to one side of the head or the tail of the vehicle is opened, and the positive spray nozzle 312 of the top spray rod is closed;

fourthly, rinsing at middle and low pressure: starting the booster pump 34, closing a channel from the intermediate water tank 54 to the car washing water pipe 37, starting a channel from the clean water tank 35 to the car washing water pipe 37, and closing the feeding motor 363, so that the booster pump 34 sucks clean water, sprays the clean water to the surface of the vehicle through a spray head, and removes residual dirt, solid-phase materials and sewage on the vehicle body;

fifthly, wiping water stains: the wiping device releases the wiping cloth 233 originally wound on the rotating shaft 23 to a suspension state, the beam 2 passes over the automobile, or the beam 2 is kept still and the automobile passes under the beam, and the wiping cloth 233 wipes the automobile body in a swinging mode under the action of the first driving mechanism 231 and the second driving mechanism 232 to remove water stains;

sixthly, after the cleaning is finished, the automobile leaves the cleaning place, the rotating shaft 23 rotates at a low speed to wind the wiping cloth 233 on the rotating shaft 23, then clean water is introduced into the inner cavity of the rotating shaft 23, meanwhile, the rotating shaft 23 rotates the rinsing wiping cloth 233 in the inner cavity of the cleaning mechanism at a high speed, then the wiping cloth 233 is dried, the cleaning operation of the wiping cloth 233 is completed, and the automobile enters a standby state before the next automobile washing.

In this embodiment, the lower portion of the solid material tank 36 is an inverted cone shape that is tapered toward the discharge port, so that the solid material is settled on the lower portion of the feed screw 362. The inner cavity of the solid-phase material tank 36 can also be round in cross section at each position according to the internal structure of the hydrocyclone, and the feed inlet is tangentially arranged, so that the formation of rotational flow is facilitated and the solid-phase material is rapidly settled. In the high-pressure washing step, if a solid-phase material needs to be added to the car washing water pipe 37, the feeding motor 363 is started to rotate the feeding screw 362, and the solid-phase material is sent out of the discharge port 361 by the spiral blade on the screw. The adding speed of the solid-phase material can be controlled by controlling the rotating speed of the feeding screw 362, and the concentration of the solid-phase material can be controlled by combining the flow of the reclaimed water. In fig. 6, no valve is arranged between the solid material tank 36 and the intermediate water tank 54, an electric ball valve 58 is arranged on the vehicle washing water pipe 37 between the solid material tank and the intermediate water tank and the booster pump 34, and a second electric ball valve 57 is arranged at the outlet of the clean water tank 35. In the step of destroying the dirt layer on the surface of the vehicle body by high-pressure washing, the electric ball valve 58 is opened, the electric ball valve 57 is closed, the motor drives the feeding screw 362 in the solid-phase material tank 36, the solid-phase material is quantitatively fed into the pipeline and mixed with the reclaimed water, and after pressurization, the solid-phase material is supplied to the nozzle through the pipeline to generate a cleaning liquid jet flow with the mixture of solid phase and liquid phase, so that the cleaning liquid jet flow is directed at the cleaned part for decontamination operation. In the step of rinsing the suspended stains on the surface of the vehicle body at the medium and low pressure, the electric ball valve 57 is opened, the electric ball valve 58 is closed, and the vehicle body is rinsed by clean water through the spray head.

Fig. 3 and 4 show a spray head combination of the top spray bar 31, each having 3 inner spray heads 311, a positive spray head 312 and an outer spray head 313, the orientation of the inner spray heads 311 and the outer spray heads 313 respectively forms theta with the positive spray heads 312, theta is less than 90 degrees, and can be selected according to requirements. All spray heads are respectively arranged on the pipe body of the top spray rod 31 through respective rotary joints, so that the motion effect of the spray heads swinging in the cross section of the automobile body at any moment can be realized. The rotatable portion of rotary joint is fixed with pendulum rod 314, the pendulum rod 314 of the 3 shower nozzles of homonymy links to each other through haulage rope 315, the one end of haulage rope 315 links to each other with rotating electrical machines 317, the other end links to each other with reset spring 316, the output shaft of rotating electrical machines 317 and the geometric relation of pendulum rod 314 set up according to crank link mechanism, rotating electrical machines 317's continuous rotation will drive the reciprocal swing of pendulum rod 314, and then realize the reciprocal swing of each shower nozzle, thereby reach the design purpose that sprays on a large scale of single shower nozzle, in order to reduce shower nozzle quantity, improve the impact force of single shower nozzle when high pressure cleaning. On a single nozzle, a cylinder 318 is coaxially installed with the water outlet hole of the nozzle, and a piston rod of the cylinder 318 can extend into the inner end of the water outlet hole of the nozzle and block the water outlet channel, so as to achieve the control purpose of closing the nozzle. Referring to fig. 5, a more specific structure of a single spray head can be seen, and the rotary joint of the spray head is composed of a fixed part 319 and a rotary part 320 connected with the spray rod, and the rotary part 320 is further externally connected with a spray nozzle 321 and an air cylinder 318 and fixedly connected with a swing rod 314, so that the rotary structure of the spray head required by fig. 3 is realized. Of course, if the material and processing requirements of the nozzle 321 can be achieved simultaneously with the rotating portion 320, the nozzle hole can be directly processed on the rotating portion 320 and designed as an integrated structure. The cylinder 318 depends on the compressed air source to realize the telescopic action, the specific control is realized by the electrical appliance control part 1 through controlling the pneumatic solenoid valve, when the cylinder rod stretches out, the water outlet hole of the spray head is blocked, and when the cylinder rod shrinks, the flow channel of the spray head is opened. The nozzle opening and closing control and nozzle swing control structures of the left vertical spray rod 32 and the right vertical spray rod 33 are the same as the principle of the top spray rod 31, and are not explained again.

In this embodiment, the measuring sensor that is provided on the cross member 2 and can measure the height of the vehicle body at any cross section of the vehicle body may be an ultrasonic distance measuring sensor or a photoelectric sensor or other distance measuring means. The electrical appliance control part 1 can determine the lifting position of the top spray rod 31 according to the height of each cross section of the vehicle body, and performs matched motion control by combining the motion speed of the cross beam 2, which is not further described.

The utility model discloses the back and forth swing refers to the reciprocating motion back and forth of wiping cloth in the automobile body is vertical (length direction), and the horizontal reciprocating motion back and forth of left and right sides swing refers to wiping cloth at the automobile body is horizontal. The rotational direction of the rotational shaft 23 is such that the observer stands on the passenger seat side, facing the vehicle body side. In the cleaning process, firstly, high-pressure water is adopted to destroy a dirt layer on the surface of the automobile and wash the dirt layer, and then wiping and air drying operations are used to remove residual water stains.

In a specific car washing operation, the following steps can be carried out:

firstly, the automobile drives into the cleaning field. When the automobile is driven in, the automobile washing liquid can be sprayed on the lower hem of the automobile body under the condition of not influencing safety. After the automobile stops, the cross beam 2 passes through the upper part of the automobile and sprays the automobile washing liquid to the automobile body.

Second step, crossbeam 2 passes through from the car top, and electrical apparatus control division 1 measures car appearance profile data, mainly includes: the high point position, the head and tail position, the tire position and the like of each cross section of the vehicle body. Then, the PLC calculates and stores to obtain an automobile profile curve which is used as a basis for controlling the lifting of the top spray rod 31.

If necessary, when the cross beam 2 in the step one passes over the automobile, the whole automobile can be sprayed with the car washing liquid, and the measurement operation in the step two can also be carried out at the same time.

Step three, high-pressure flushing: the cross beam 2 passes through the automobile from the upper part according to the step two, the booster pump 34 is started, the channel of the reclaimed water tank 54 to the automobile washing water pipe 37 is started, the feeding motor 363 is started, the booster pump 34 sprays solid-liquid mixture formed by mixing the reclaimed water and the solid-phase material onto the surface of the automobile through the spray head, and the dirt attached to the automobile body is damaged and stripped. In this process, left and right vertical spray bars 32 and 33 remain stationary while top spray bar 31 remains at a suitable distance from the vehicle body below. The spray heads of all spray rods operate in a swinging mode, so that a wider cleaning breadth can be achieved by using fewer spray heads, and the swinging jet flow is larger in impact force and higher in energy efficiency than the steady jet flow.

When the vehicle head or the vehicle tail is cleaned, the top spray rod 31 only opens the inner spray head 311 or the outer spray head 313 of the oblique spray liquid, and closes the positive spray head 312 of the vertical downward spray liquid. When washing the middle of the vehicle body, the top spray bar turns on the positive spray head 312, and turns off the inside spray head 311 or the outside spray head 313. When the engine cover at the front part of the vehicle and other parts with lower height are cleaned, the upper spray head is closed, so that a remarkable water-saving effect can be achieved. Of course, according to the process requirements of shearing impact, water driving and the like, when a specific part such as the middle part of the vehicle body or the windshield is cleaned, the front spray head 312 is closed, and the inner spray head 311 or the outer spray head 313 is opened, so that a better cleaning effect can be obtained. The adjacent rows of the inner spray head 311, the outer spray head 313 and the front spray head 312 in different directions can be installed on the same cross section or arranged in a staggered distance in the axial direction, which is determined according to the process convenience requirement of processing and installation.

The medium used for high-pressure washing can be clear water or reclaimed water obtained after sewage generated by previous washing is treated, and preferably is a solid-liquid mixture formed by mixing the reclaimed water and a solid-phase material, so that the effect of removing dirt on a vehicle body is better. Solid phase material is added to the plant piping via a solid phase material tank 36.

Step four, rinsing at medium and low pressure: and (3) starting the booster pump 34, closing a channel from the intermediate water tank 54 to the car washing water pipe 37, starting a channel from the clean water tank 35 to the car washing water pipe 37, and closing the feeding motor 363, so that the booster pump 34 sucks clean water, sprays the clean water to the surface of the vehicle through a spray head, and removes residual dirt, solid-phase materials and sewage on the vehicle body.

Fifthly, wiping water stains: the wiping device releases the wiping cloth originally wound around the rotating shaft 23 to a suspension state, the beam 2 passes above the automobile, or the beam 2 is kept still and the automobile passes below the beam, and the wiping cloth wipes the automobile body in a swinging mode under the action of the first driving mechanism 231 and the second driving mechanism 232 to remove water stains.

And sixthly, finishing cleaning, and enabling the automobile to leave the cleaning site. Air blowers 9 are respectively arranged on two side surfaces of the water removing area close to the position of the vehicle outlet, and air outlets of the air blowers 9 are aligned with the middle lower part of the side surface of the vehicle body. The blower 9 is activated when the vehicle is driven out of the water removal area, and the blower 9 is deactivated after the vehicle is driven out. The wind power of the blower is helpful for further removing residual water stains or solid-phase materials at the lower part of the vehicle body.

During or after the automobile leaves, the rotating shaft 23 rotates at a low speed to roll the wiping cloth on the rotating shaft 23, then clean water is introduced into the inner cavity of the rotating shaft 23, meanwhile, the rotating shaft 23 rotates at a high speed to rinse the wiping cloth, then the wiping cloth is dried, the cleaning operation of the wiping cloth is completed, and the automobile enters a standby state before the next automobile washing.

The above embodiments are provided mainly for the convenience of describing the present invention. In practice, the guide rail 21 can be directly laid on the ground, and the beam 1 has a portal structure. The PLC can be changed into a motion controller or an FPGA and other special integrated circuits and other arithmetic devices. Measuring these all does not conflict with the essence of the present invention, and the function of the device can be further optimized according to the actual situation.

If necessary, a purification device (such as a membrane treatment device, a filtration device, an electric flocculation device, an air flotation device, etc.) may be added after the reclaimed water tank 54 to separate the anionic detergent, ultrafine particles, flocs, etc. from the polluted water, thereby further improving the water turbidity, SOD, etc. pollution control indexes of the water treatment. The related art can be realized by adopting mature technology, and is not further explained here.

If necessary, entrance guard mechanisms such as a high-speed rolling door and/or a barrier gate can be arranged at the entrance of the vehicle to be washed of the washing system, so that the environmental pollution caused by the overflow of the car washing wastewater, noise and the like is reduced, and the entrance and exit of the vehicle are controlled.

The utility model discloses used sewage pump 52 can be immersible pump, diaphragm pump etc. and booster pump 34 can be plunger pump, multistage centrifugal pump, diaphragm pump etc. all according to actual operating pressure, flow, medium and rationally choose for use, all can use ripe well-known technique, and it is not described in detail here.

Compared with the prior art, the utility model has the advantages of: the side spray rod is fixed and only needs to do motion control of the top spray rod, the measurement and motion control requirements are simplified, and the spraying device and the wiping device are integrally designed and are all arranged on the frame body of the same cross beam 2, so the structure is very simple, compact and reliable, the occupied space is small, and the manufacturing cost is low; the integral function is complete, and the cleaning and drying integrated machine has all-round functions of cleaning, wiping, air drying, recycling reclaimed water and the like; low working water pressure, good cleaning effect and capability of recycling cleaning media. In addition, the inseparable washing technology that combines prepares and uses the normal water, and the automation mechanized operation can all be realized to interpolation, the recovery of solid phase material, and the degree of automation of whole equipment is high, makes the utility model discloses the technique has the suitability in the extremely strong actual engineering.

Claims (9)

1. The utility model provides an automobile cleaning device, includes electrical apparatus control part (1), crossbeam (2), spray set and dry the device, spray set is linked together with the washing water source, crossbeam (2) can set up on guide rail (21) through driving motor (11) with the fore-and-aft motion, spray set and dry the device and install on crossbeam (2), electrical apparatus control part (1) is connected with driving motor (11), spray set and dry the device through the circuit, and the one end of the cloth of drying (233) of drying the device hangs on horizontal pole (61) of crossbeam (2) below, and the other end of the cloth of drying (233) can be drooped and contact the automobile body surface of crossbeam (2) below by gravity, its characterized in that: spray set includes top spray lance (31) that the level set up and fixes left vertical spray lance (32) and right vertical spray lance (33) at crossbeam (2) tip respectively, top spray lance (31) can be connected on the elevating system (22) of crossbeam (2) with reciprocating relatively crossbeam (2), and each shower nozzle on top spray lance (31) and two vertical spray lances is installed on the corresponding spray lance body of rod respectively through respective rotary joint, and each shower nozzle is connected with the rotating electrical machines transmission, the rotating electrical machines is connected with electrical apparatus control portion (1) through the circuit, the corresponding spray lance back and forth swing of the shower nozzle of rotating electrical machines drive correspondence relatively.

2. The vehicle cleaning apparatus of claim 1, wherein: the top spray rod (31) is provided with three groups of spray heads: the spray nozzle comprises a positive spray nozzle (312) with downward spray nozzles, an inner spray nozzle (311) positioned on the front side wall of the top spray rod (31) and an outer spray nozzle (313) positioned on the rear side wall of the top spray rod (31), wherein the spray nozzles of the outer spray nozzle (313) and the inner spray nozzle (311) form a reverse acute angle relative to the orientation of the positive spray nozzle (312) in the cross section of the spray rod (31); the spray head of the left vertical spray rod (32) and the spray head of the right vertical spray rod (33) face the side face of the vehicle body; the spray heads on the top spray rod (31), the left vertical spray rod (32) and the right vertical spray rod (33) are respectively connected into an integral structure and then are in transmission connection with corresponding rotating motors.

3. The vehicle cleaning apparatus of claim 2, wherein: and each spray head on the top spray rod (31), the left vertical spray rod (32) and the right vertical spray rod (33) is respectively provided with an air cylinder for controlling the opening and closing of the corresponding spray head nozzle, the air cylinder is arranged on the pipe wall of a rotary joint opposite to the corresponding spray head nozzle, the air cylinder and the corresponding spray head nozzle are coaxially arranged, and the air cylinder rod of the air cylinder can extend out of the air cylinder body to block the corresponding spray head nozzle.

4. The cleaning device for an automobile according to any one of claims 1 to 3, characterized in that: the electric appliance control part (1) comprises a measuring sensor which is arranged on the cross beam (2) and can measure the height of the vehicle body at any cross section of the vehicle body, and the electric appliance control part (1) can control the lifting of the top spray rod (31) and the movement speed of the cross beam (2) according to the height of the vehicle body at any position.

5. The cleaning device for an automobile according to any one of claims 1 to 3, characterized in that: the lifting mechanism (22) comprises a left vertical optical axis (221) and a right vertical optical axis (222) which are respectively arranged at two ends of the cross beam (2), a soft rope (223), a winding wheel (224) arranged at the upper part of the cross beam (2) and a lifting motor (225); the end part of the top spray rod (31) is respectively sleeved on a left vertical optical axis (221) and a right vertical optical axis (222), the top spray rod (31) is connected with a winding wheel (224) through a soft rope (223), the winding wheel (224) is fixed with an output shaft of a lifting motor (225) in the same shaft, and the lifting motor (225) can drive the top spray rod (31) to lift through winding and unwinding the soft rope (223).

6. The cleaning device for an automobile according to any one of claims 1 to 3, characterized in that: spray set is linked together through the pipeline and the washing water source that adds the solid phase material, specifically does, top spray lance (31), left vertical spray lance (32) and right vertical spray lance (33) all are linked together through carwash water pipe (37) with booster pump (34), clear water jar (35), solid phase material jar (36), the intercommunication department of solid phase material jar (36) and carwash water pipe (37) is provided with the ooff valve, the ooff valve is connected with electrical control portion (1) through the circuit.

7. The vehicle cleaning apparatus of claim 6, wherein: the automobile cleaning device also comprises a reclaimed water recycling device, the spraying device is communicated with the reclaimed water recycling device through a pipeline, specifically, the reclaimed water recycling device is composed of a wastewater collecting pool (51), a sewage pump (52), a silt removing part (53), a reclaimed water tank (54), a booster pump (34), a clean water tank (35), a solid-phase material tank (36) and a car washing water pipe (37), and the reclaimed water tank (54) and the clean water tank (35) are communicated with corresponding spray heads through the car washing water pipe (37) and the booster pump (34); a discharge port (361) is formed in the lower portion of the solid-phase material tank (36), the discharge port (361) is communicated with the car washing water pipe (37), a feeding screw rod (362) is arranged in an inner cavity of the solid-phase material tank (36), a spiral blade is arranged on the lower portion of a rod body of the feeding screw rod (362), one end of the feeding screw rod (362) extends into the discharge port (361), and the other end of the feeding screw rod (362) is in transmission connection with a feeding motor (363); the connecting position of the discharge port (361) of the solid-phase material tank (36) and the car washing water pipe (37) is positioned on the car washing water pipe (37) in front of the booster pump (34).

8. The vehicle cleaning apparatus of claim 7, wherein: the solid-phase materials added in the solid-phase material tank (36) are plant particles, and the size of the particles is not more than 0.9 time of the equivalent aperture of a nozzle of the spray head and not less than 100 microns; or, the solid phase material is activated carbon powder or particles of non-metallic minerals, and the particles of the non-metallic minerals are as follows: talcum powder, graphite powder or sepiolite powder, the size of the particle is not more than 0.85 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is elastic high molecular material or powder of a product thereof, or elastic particles with a closed air hole structure, and the size of the particles is not more than 1.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or, the solid phase material is an open-cell skeleton structure particle, and the open-cell skeleton structure particle is: open-cell foam particles or sponge particles, the size of the particles being not more than 2.5 times the equivalent aperture of the nozzle orifice and not less than 100 microns; or the solid phase material is cloth piece particles, and the size of the particles is not more than 2.5 times of the equivalent aperture of a nozzle orifice of the spray head and not less than 100 microns; or the solid phase material is a fiber, the fiber is a plant fiber or a chemical fiber, and the length of the fiber is not more than 4.5 times of the equivalent aperture of the nozzle orifice of the spray head and not less than 100 micrometers; the particle size is not more than 4.5 times of the equivalent aperture of the nozzle orifice and not less than 100 microns.

9. The cleaning device for an automobile according to any one of claims 1 to 3, characterized in that: the wiping device has the specific structure that the rotating shaft (23) can rotate around the axis of the rotating shaft under the driving of the second motor (24), two ends of a cross rod (61) for hanging the wiping cloth (233) are hung on the rotating shaft (23) in a U-shaped structure, two ends of the cross rod (61) are connected to the rotating shaft (23) through corresponding one-way bearings respectively, when the rotating shaft (23) rotates along the locking direction of the one-way bearings, the cross rod (61) drives the wiping cloth (233) to be wound on the rotating shaft (23), the rotating shaft (23) is further provided with a first driving mechanism (231) capable of driving the wiping cloth (233) to swing back and forth and a second driving mechanism (232) capable of driving the wiping cloth (233) to swing left and right, and the cross beam (2) is further provided with a cleaning mechanism for cleaning the wiping cloth when the wiping cloth (233) is wound.

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