CN209099261U - Mini motor sweeper - Google Patents

Abstract

The utility model discloses a kind of mini motor sweepers, including clean chassis, power device, lifting device, front wheel device and clearing apparatus；Power device and lifting device are mounted on the left end for cleaning chassis, and front wheel device is mounted on the lower section for cleaning chassis right end, and clearing apparatus is mounted on sweeper chassis underside and including the first clearing apparatus and the second clearing apparatus；Side plate is respectively set in the front and back end for cleaning chassis, and power device includes differential speed motor, the first sprocket wheel, the second sprocket wheel, lifting plate and rear-wheel；Lifting device includes the first oil cylinder, third sprocket wheel, the second transmission chain, column and connecting rod；First clearing apparatus is arranged between a pair of side plates, and cleans motor, cleaning roller and lifting assembly including first.This mini motor sweeper is not only realized and is adjusted to sweeper chassis height while sweeper normally travel, so that it is passed through barrier, and realize the adjustment of the height cleaned, so that cleaning is cleaner, is avoided the splashing of dust.

Description

Small sweeper

technical field

The utility model relates to the field of sweepers, in particular to a small sweeper.

Background technique

With the process of urbanization and modernization in my country, the requirements for city appearance and sanitation are getting higher and higher. Micro and small road sweepers are widely used in narrow and curved roads such as back alleys, slow lanes, sidewalks, etc. , to ensure its cleaning and cleaning.

The existing micro- and small-scale road sweeping and cleaning vehicles industry has not started long, mainly a type of sweeping vehicle with the road cleaning function modified on the special vehicle chassis. In addition to the chassis engine, the vehicle is driven by the addition of a hydraulic motor to drive cleaning, recycling and other work. , Small road cleaning trucks have simple structure and flexible operation, and are suitable for cleaning operations in various climates. However, due to long-term exposure and use of road surfaces such as back streets, slow lanes, and sidewalks, it is easy to cause unevenness on the road surface, and there are often some In order to facilitate cleaning of the existing sweepers, the chassis is often low from the ground to ensure that the sweeper is in full contact with the ground. Therefore, when driving on uneven roads, the sweeper chassis cannot be adjusted in height, and the height of the sweeper cannot be adjusted. Flexible, it is easy to cause the chassis of the sweeper or the sweeper to collide with the raised obstacles on the road, affecting the sweeping operation.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a small sweeper, which can not only adjust the height of the chassis of the sweeper to make it pass through obstacles smoothly, but also adjust the height of the sweeper, so that the sweeper can be cleaned more cleanly and more efficiently. Environmental protection, avoid dust splash.

In order to achieve the above purpose, the small sweeper includes a sweeper chassis, a power device, a lifting device, a front wheel device and a sweeping device;

The power device and the lifting device are installed at the left end of the sweeper chassis, the front wheel device is installed under the right end of the sweeper chassis, and the sweeper is installed on the lower side of the sweeper chassis and includes a first sweeper and a second sweeper device;

The front and rear ends of the sweeper chassis are respectively provided with side plates, a pair of side plates are located between the power device and the front wheel device, and the side plates are provided with arc grooves arranged up and down;

The power device includes a differential motor and a rear wheel device, the output end of the differential motor is connected to the input end of the rear axle, the axes of a pair of rear axle output shafts are arranged forward and backward, and are rotatably mounted on the chassis of the sweeper through a pair of bearing seats , the rear wheel device is a pair, and the pair of rear wheel devices is located symmetrically on the outside of the pair of rear axle output shafts, and includes a first sprocket, a second sprocket, a lifting plate and a rear wheel;

The middle part of the lifting plate is rotatably installed on the output shaft of the rear axle, the lower part is vertically arranged in the middle part, the upper part is inclined to the right and forms an obtuse angle with the lower part, the first sprocket is fixedly installed on the output shaft of the rear axle, the The second sprocket is fixedly installed on one end of the first support shaft, and is connected with the first sprocket through a first transmission chain arranged around the outer side of the first sprocket. Fixed installation of rear wheels;

The lifting device includes a first oil cylinder, a third sprocket, a second transmission chain, a column and a connecting rod; the column is arranged vertically, and the two ends of the connecting rod are respectively connected to the upper part of a pair of lifting plates, and the first The piston end of the oil cylinder is connected to the push plate, the two ends of the push plate are respectively set on the column by sliding up and down, the third sprocket is rotatably installed on the column, one end of the second transmission chain is fixedly connected to the push plate, and the other end is fixed on the push plate. After being wound on the outside of the third sprocket, it is connected with the connecting rod;

The first cleaning device is arranged between a pair of side plates, and includes a first cleaning motor, a cleaning roller and a lifting assembly, the first cleaning motor is located to the right of the cleaning roller, and the output end is fixedly connected to the second transmission wheel ;

Both ends of the cleaning roller are respectively slidably arranged in the arc-shaped grooves of a pair of side plates, and one end of the cleaning roller is fixedly connected to the first transmission wheel, and the first transmission wheel and the second transmission wheel are connected by a transmission belt wound around the outer side thereof. ;

The lifting assembly is a pair, and the pair of lifting assemblies is symmetrically arranged on the chassis of the sweeper. The lifting assembly includes a third oil cylinder and a first adjusting plate. The left end of the first adjusting plate is arranged on one end of the cleaning roller, The right end is rotatably mounted on the side plate, and the arc shape of the arc groove is set with the right end of the first adjusting plate as the center of the circle;

The third oil cylinder is rotatably mounted on the sweeper chassis, the piston end is rotatably mounted on the middle of the first adjusting plate, and a tensioning device is provided on the first adjusting plate adjacent to the transmission belt.

Further, the second cleaning device is arranged on the right part of the chassis of the sweeper, and includes a support block, a fourth oil cylinder, a second cleaning motor, a first connecting plate and a second connecting plate; the support block is fixedly installed on the sweeper. The lower end of the chassis is connected with one end of the first connecting plate in the vertical direction, and the second connecting plate is arranged front and rear, and one end is fixedly connected with the other end of the first connecting plate, and the other end is fixedly installed with a second cleaning motor. The output end of the second cleaning motor is downwardly arranged and fixedly connected to the cleaning brush, the fourth oil cylinder is rotatably mounted on the chassis of the cleaning vehicle, and the telescopic end is rotatably mounted in the middle of the first connecting plate.

Further, the tensioning device includes a second adjusting plate, a second tensioning wheel and an elastic rod; one end of the second adjusting plate is rotatably installed on the first adjusting plate, and the other end is rotatably installed with a second tensioning wheel, so The axis of the second tensioning wheel is arranged forward and backward and bears against the transmission belt tangentially, one end of the elastic rod is mounted on the chassis of the sweeper, and the other end is rotatably connected to the middle of the second adjusting plate.

Further, the second cleaning devices are a pair, and the pair of second cleaning devices are arranged symmetrically in the front and rear.

Further, the front wheel device includes a front wheel, a second support shaft, a second oil cylinder and a fixing plate; the front wheel is rotatably installed in the middle of the second support shaft, the second oil cylinder is a pair, and a pair of first oil cylinders are provided. One end of the two oil cylinders is respectively installed on both ends of the second support shaft, and the other end is respectively installed on a fixing plate, the fixing plate is installed on the steering mechanism of the sweeper, and the first oil cylinder and the second oil cylinder act synchronously.

Further, the upper end of the column is provided with a second sensing device, the chassis of the sweeper is provided with a first sensing device, the first sensing device is located below the upper part of the lift plate, and the second sensing device is connected to the controller. connected, the controller controls the start and stop of the first oil cylinder.

Further, it also includes a collection device, the collection device includes a collection box and a negative pressure device; the collection box is installed under the left end of the chassis of the sweeper, and the right end is provided with a dust inlet, the dust inlet and the cleaning roller. Next, the negative pressure device is installed on the chassis of the sweeper and is connected with the collection box.

Further, the negative pressure device includes an exhaust fan and a filter device, the air inlet end of the exhaust fan is connected to the collection box, and the air outlet end is connected to the filter device.

Further, a first tensioning wheel is rotatably installed at the lower part of the lifting plate, the first tensioning wheel is located between the first sprocket and the second sprocket, and the peripheral surface is in contact with the first transmission chain.

Compared with the prior art, the small sweeper has the following advantages:

1) Because the utility model is provided with a lifting device, when the sweeper is running normally, the lower part of the lifting plate is in a non-vertical state. When encountering an obstacle, the push plate driven by the piston end of the first oil cylinder moves up and down, and the second transmission chain moves up and down. Rotate the upper part of the lifting plate around the middle part, so that the lower part of the lifting plate rotates to the vertical position, that is, the distance between the rear wheels and the chassis of the sweeper is increased through the change of the angle of the lower part of the lifting plate, so that the sweeper can pass the obstacle smoothly, and the power In the device, the first transmission chain drives the second sprocket to realize the rotation of the first support shaft, and realizes the stable output of power. When the sweeper runs normally, the height of its chassis can be adjusted to avoid obstacles from hindering or colliding with the sweeper chassis.

2) The utility model is provided with the first cleaning device and the second cleaning device, the cleaning roller in the first cleaning device is slidably arranged in the arc groove, and the third oil cylinder drives the first adjusting plate to make the left end rotate around the right end to realize cleaning. The height of the roller is adjusted up and down, which is convenient for cleaning and avoids the short service life of the cleaning roller always in contact with the ground. The first cleaning motor drives the second transmission wheel to realize the rotation and cleaning of the cleaning roller, and the cleaning is more efficient; through a pair of second cleaning devices Symmetrical arrangement, that is, the fourth oil cylinder drives one end of the first connecting plate to rotate up and down around the support block to adjust the upper and lower heights of the cleaning brush, and the second cleaning motor drives the cleaning brush to rotate to clean the ground, which is not only convenient but also has a larger cleaning range.

3) The utility model is provided with a front wheel device. When the lifting device is working, in order to prevent the left and right parts of the sweeper from being different in height, the front wheel device also works at the same time, that is, a pair of second oil cylinders work to achieve cleaning. Adjust the height of the right part of the car so that it is the same height as the rear wheel.

4) The utility model is provided with a tensioning device, which is connected with the middle of the second adjusting plate through an elastic rod, so that the second tensioning wheel installed on the second adjusting plate always bears against the transmission belt to realize its tension, so the cleaning roller When the two ends slide in the arc groove, due to the action of the tensioning device, the transmission belt is always in a tensioned state, realizing the stable cleaning of the cleaning roller, and the cleaning effect is more obvious.

Description of drawings

Fig. 1 is the overall schematic diagram of the present utility model;

Fig. 2 is the schematic diagram of the sweeper chassis of the present utility model;

3 is a schematic diagram of a power device and a lifting device in a lifting state of the present invention;

4 is a schematic diagram of a power device and a lifting device in a normal driving state of the present invention;

Fig. 5 is the schematic diagram of the cleaning device of the present invention;

6 is a schematic diagram of the first cleaning device of the present invention;

7 is a schematic diagram of the tensioning device of the present invention;

8 is a schematic diagram of the second cleaning device of the present invention;

9 is a schematic diagram of the front wheel device of the present invention;

In the picture: 1. Sweeper chassis, 11, Side plate, 12, Arc groove, 2. Power unit, 21, Differential motor, 22, Bearing seat, 23, Rear axle output shaft, 24, First sprocket, 25. The first tensioner, 26, The second sprocket, 27, The first transmission chain, 28, The rear wheel, 29, The first support shaft, 3. The lifting device, 31, The lifting plate, 32, The connecting rod, 33 , column, 34, push plate, 35, second drive chain, 36, third sprocket, 37, first oil cylinder, 4, front wheel device, 41, front wheel, 42, second support shaft, 43, second Oil cylinder, 44, fixed plate, 5, first cleaning device, 51, cleaning roller, 52, first transmission wheel, 53, third oil cylinder, 54, first adjustment plate, 55, transmission belt, 56, second transmission wheel, 57. The first cleaning motor, 58, the tensioning device, 581, the second adjusting plate, 582, the second tensioning wheel, 583, the elastic rod, 6, the second cleaning device, 61, the support block, 62, the fourth oil cylinder , 63, the first connecting plate, 64, the second connecting plate, 65, the second cleaning motor, 66, the cleaning brush, 71, the collection box, 72, the negative pressure device.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, the small sweeper includes a sweeper chassis 1, a power device 2, a lifting device 3, a front wheel device 4 and a cleaning device;

The power device 2 and the lifting device 3 are installed on the left end of the sweeper chassis 1, the front wheel device 4 is installed under the right end of the sweeper chassis 1, and the sweeper device is installed on the lower side of the sweeper chassis 1 and includes a first cleaning device 5 and second cleaning device 6;

The front and rear ends of the sweeper chassis 1 are respectively provided with side plates 11, a pair of side plates 11 are located between the power unit 2 and the front wheel unit 4, and the side plates 11 are provided with arc grooves 12 arranged up and down;

The power unit 2 includes a differential motor 21 and a rear wheel device. The output end of the differential motor 21 is connected to the input end of the rear axle. On the sweeper chassis 1; the rear wheel devices are a pair, and the pair of rear wheel devices are located symmetrically on the outside of the pair of rear axle output shafts 23, and include a first sprocket 24, a second sprocket 26, and a lifting plate. 31 and rear wheel 28;

The middle part of the lifting plate 31 is rotatably installed on the rear axle output shaft 23, the lower part is vertically arranged in the middle part, the upper part is inclined to the right and forms an obtuse angle with the lower part, and the first sprocket 24 is fixedly installed on the rear axle output shaft 23. The second sprocket 26 is fixedly installed on one end of the first support shaft 29, and is connected with the first sprocket 24 through a first transmission chain 27 wound around the outer side thereof, and the middle of the first support shaft 29 rotates The rear wheel 28 is fixedly installed on the lower part of the lifting plate 31, and the other end is fixedly installed;

The lifting device 3 includes a first oil cylinder 37, a third sprocket 36, a second transmission chain 35, a column 33 and a connecting rod 32; the column 33 is arranged vertically, and the two ends of the connecting rod 32 are respectively connected with a pair of lifting On the upper part of the plate 31, the piston rod of the first oil cylinder 37 is connected to the push plate 34, the two ends of the push plate 34 are respectively slid up and down on the column 33, and the third sprocket 36 is rotatably installed on the column 33, so One end of the second transmission chain 35 is fixedly connected to the push plate 34, and the other end is wound around the outside of the third sprocket 36 and connected to the connecting rod 32;

The first cleaning device 5 is arranged between a pair of side plates 11 and includes a first cleaning motor 57 , a cleaning roller 51 and a lifting assembly. The first cleaning motor 57 is located to the right of the cleaning roller 51 and is at the output end. The second transmission wheel 56 is fixedly connected, the two ends of the cleaning roller 51 are respectively slidably arranged in the arc-shaped grooves 12 of the pair of side plates 11, and one end of the cleaning roller 51 is fixedly connected to the first transmission wheel 52. The first transmission wheel 52 and the The second transmission wheel 56 is connected by a transmission belt 55 wound around the outer side thereof;

The lift assembly is a pair, and the pair of lift assemblies are symmetrically arranged on the sweeper chassis 1 in the front and rear. The lift assembly includes a third oil cylinder 53 and a first adjustment plate 54. The left end of the first adjustment plate 54 is arranged on the sweeper. One end and the right end of the roller 51 are rotatably mounted on the side plate 11, and the arc shape of the arc groove 12 is set with the right end of the first regulating plate 54 as the center of the circle;

The third oil cylinder 53 is rotatably mounted on the sweeper chassis 1 , the piston end is rotatably mounted on the middle of the first regulating plate 54 , and a tensioning device 58 is provided on the first regulating plate 54 adjacent to the transmission belt 55 .

As shown in FIG. 7 , further, the tensioning device 58 includes a second adjusting plate 581 , a second tensioning wheel 582 and an elastic rod 583 ; one end of the second adjusting plate 581 is rotatably mounted on the first adjusting plate 54 2. The second tensioning wheel 582 is rotatably installed at the other end. The axis of the second tensioning wheel 582 is arranged forward and backward and is tangent to the transmission belt 55. One end of the elastic rod 583 is installed on the sweeper chassis 1, and the other end is connected to the first The middle parts of the two adjusting plates 581 are rotatably connected; the elastic rod 583 is always in an elastic state, and is connected with the middle part of the second adjusting plate 581 through the elastic rod 583, so that the second tensioning pulley 582 installed on the second adjusting plate 581 always bears the transmission belt 55 Therefore, when both ends of the cleaning roller 51 slide in the arc groove 12, due to the action of the tensioning device 58, the transmission belt 55 is always in a tensioned state, so as to realize the stable cleaning of the cleaning roller 51.

As shown in FIG. 8 , further, the second cleaning device 6 is arranged on the right part of the cleaning vehicle chassis 1 , and includes a support block 61 , a fourth oil cylinder 62 , a second cleaning motor 65 , a first connecting plate 63 and a first Two connecting plates 64; the support block 61 is fixedly installed on the lower end of the sweeper chassis 1, and the lower end is connected with one end of the first connecting plate 63 in an up-down direction. The second connecting plate 64 is arranged front and rear, and one end is connected with the first connecting plate The other end of the plate 63 is fixedly connected, and a second cleaning motor 65 is fixedly installed on the other end. The output end of the second cleaning motor 65 is set downward and is fixedly connected to the cleaning brush 66. The fourth oil cylinder 62 is rotatably installed on the cleaning vehicle chassis 1 The upper and retractable ends are rotatably installed in the middle of the first connecting plate 63; for more convenient and large-scale cleaning, the fourth oil cylinder 62 drives one end of the first connecting plate 63 to rotate up and down around the support block 61 to achieve the upper and lower heights of the cleaning brush 66 Adjustment, when the cleaning brush 66 is in contact with the ground, the second cleaning motor 65 is activated to drive the cleaning brush 66 to rotate, so as to clean the ground.

Further, the second cleaning devices 6 are a pair, and the pair of second cleaning devices 6 are symmetrically arranged in the front and rear;

As shown in FIG. 9 , further, the front wheel device 4 includes a front wheel 41 , a second support shaft 42 , a second oil cylinder 43 and a fixing plate 44 ; the front wheel 41 is rotatably installed in the middle of the second support shaft 42 , the second oil cylinder 43 is a pair, one end of the pair of second oil cylinder 43 is respectively installed on both ends of the second support shaft 42, and the other end is respectively installed on the fixing plate 44, the fixing plate 44 is installed on the cleaning vehicle On the steering mechanism, the first oil cylinder 37 and the second oil cylinder 43 act synchronously; the front wheel device 4 and the lifting device 3 both use oil cylinders to realize the lifting and lowering of the front wheel 41 and the rear wheel 28, so when the lifting device 3 works, that is, The first oil cylinder 37 drives the push plate 34 and uses the second transmission chain 35 to make the upper part of the lifting plate 31 tilt and rotate, so that the rear wheel 28 at the lower part of the lifting plate 31 can be raised or lowered. They communicate with each other or are jointly controlled by the hydraulic unit, that is, when the lifting device 3 is working, the front wheel device 4 is also working at the same time, a pair of second oil cylinders 43 are working, and the hydraulic unit is used to control the first oil cylinder 37 and the second oil cylinder 43. Precise control can realize the height adjustment of the left and right parts of the sweeper, so that the heights of the front wheel 41 and the rear wheel 28 are the same, preventing the left and right parts of the sweeper from being different in height.

Further, the upper end of the column 33 is provided with a second sensing device, the chassis 1 of the sweeper is provided with a first sensing device, the first sensing device is located below the upper part of the lifting plate 31, and the second sensing device is the same as the second sensing device. Connected with the controller, the controller controls the start and stop of the first oil cylinder 37; the first induction device and the second induction device are connected to the controller to limit the lifting and lowering of the telescopic rod of the first oil cylinder 37, and realize the lifting plate 31 The lower part is rotated to adjust the suitable height.

Further, the sweeper includes a collection device, the collection device includes a collection box 71 and a negative pressure device 72; the collection box 71 is installed under the left end of the sweeper chassis 1, and the right end is provided with a dust inlet, the dust inlet The opening is adjacent to the cleaning roller 51, the negative pressure device 72 is installed on the chassis 1 of the cleaning vehicle, and is connected to the collection box 71;

Further, the negative pressure device 72 includes an exhaust fan and a filter device, the intake end of the exhaust fan is connected to the collection box 71, and the air outlet end is connected to the filter device; the dust cleaned by the first cleaning device 5 passes through the collection box. 71 is collected, and the dust is easy to splash, so the dust flying in the collection box 71 is sucked into the filter device by the exhaust fan for filtering, so as to avoid polluting the environment.

Further, a first tension wheel 25 is rotatably installed at the lower part of the lifting plate 31 , the first tension wheel 25 is located between the first sprocket 24 and the second sprocket 26 , and the peripheral surface is connected to the first transmission chain 27 . Withstand the contact; realize the tensioning of the first transmission chain 27 through the first tensioning wheel 25 to avoid the situation that the transmission of the first transmission chain 27 is unstable.

When the small cleaning vehicle is running normally, the lifting device 3 does not work, and the power device 2 works, that is, the lower part of the lifting plate 31 is in a non-vertical state, and the differential motor 21 is activated, and the differential motor 21 transmits the power to the output of the rear axle On the shaft 23, a pair of rear axle output shafts 23 respectively drive the corresponding first sprockets 24 to rotate. The first support shaft 29 realizes the rotation of the rear wheel 28 to meet the purpose of forward and backward of the sweeper; in addition, the first tension wheel 25 at the lower part of the lifting plate 31 realizes the tension control of the first transmission chain 27 to avoid the first transmission chain. 27 The transmission is unstable;

When the sweeper encounters an obstacle and needs to lift the sweeper chassis 1, the lifting device 3 works, the first oil cylinder 37 is activated, and the push plate 34 driven by the piston end of the first oil cylinder 37 moves up and down, and the push plate 34 passes through the second transmission. The chain 35 rotates the upper part of the lift plate 31 around its middle part to adjust the angle of the lower part of the lift plate 31, so that the lower part of the lift plate 31 rotates to the vertical position, that is, the rear wheel 28 distance from the sweeper can be realized by changing the angle of the lower part of the lift plate 31 The increase of the distance between the chassis 1 enables the sweeper to pass through obstacles or rough roads smoothly, and at this time, the power unit 2 still transmits the power to the rear wheel 28 through the transmission chain through the differential motor 21. The chassis 1 of the sweeper collides with the obstacle to meet the purpose of forward and backward of the sweeper; this sweeper replaces the traditional wheel shock absorber with the lifting device 3 to realize the sweeper smoothly passing through the obstacle, and the front wheel device 4 and the lifting device 3 both use oil cylinders The lifting of the front wheel 41 and the rear wheel 28 is realized, and the first oil cylinder 37 and the second oil cylinder 43 are used for synchronous action and precise control, that is, they can be communicated with each other or jointly controlled by the hydraulic unit and the electric control system, while the lifting device 3 is working. , the front wheel device 4 also works at the same time to realize the height adjustment of the left and right parts of the sweeper, so that the height of the front wheel 41 and the rear wheel 28 are consistent, and the height of the left and right parts of the sweeper is prevented from being different.

In addition, by arranging the first sensing device and the second sensing device, that is, the first sensing device and the second sensing device can be contact switches, the limit of the lifting and lowering of the piston end of the first oil cylinder 37 is realized, so that the lower part of the lifting plate 31 is lifted to a suitable height , and realize the simultaneous action of the second oil cylinder 43 and the first oil cylinder 37, realize the height adjustment of the left and right parts of the sweeper, and make the front wheel 41 and the rear wheel 28 the same height;

When the cleaning work is initially performed, both ends of the cleaning roller 51 are located at the upper end of the arc groove 12 of the side plate 11, that is, the cleaning roller 51 is at a certain height from the ground, so as to avoid the cleaning roller 51 from contacting the ground in the non-cleaning state, causing the cleaning roller 51 When cleaning is carried out, the first cleaning device 5 works, the third oil cylinder 53 is activated, and the third oil cylinder 53 drives the middle part of the first adjusting plate 54, so that the left end of the first adjusting plate rotates around its right end, which is the same as the first adjusting The cleaning roller 51 connected to the left end of the plate 54 slides in the arc groove 12, the cleaning roller 51 moves down and contacts the ground, and then starts the first cleaning motor 57, and the power passes through the first transmission wheel 52, the transmission belt 55 and the second transmission wheel 56 is transmitted to the cleaning roller 51 to realize its rotation and cleaning, that is, to clean the ground. After cleaning, the dust is collected by the collecting device. When the cleaning is stopped, the first cleaning motor 57 and the third oil cylinder 53 are turned off. The first cleaning motor 57 To realize the rotation of the cleaning roller 51, the third oil cylinder 53 drives the first adjusting plate 54 to realize the sliding of the cleaning roller 51 to the upper end of the arc groove 12, so as to prevent the cleaning roller 51 from contacting the ground;

For more convenient and large-scale cleaning, the second cleaning device 6 works, that is, the fourth oil cylinder 62 drives one end of the first connecting plate 63 to rotate up and down around the support block 61 to adjust the height of the cleaning brush 66 up and down. When in contact, the second cleaning motor 65 is activated to drive the cleaning brush 66 to rotate, so as to clean the ground.

Claims (9)

1. A small sweeper, comprising a sweeper chassis (1), a power unit (2), and characterized in that it also includes a lifting device (3), a front wheel device (4) and a cleaning device; The power device (2) and the lifting device (3) are installed at the left end of the sweeper chassis (1), the front wheel device (4) is installed below the right end of the sweeper chassis (1), and the sweeper is installed at the bottom of the sweeper chassis (1). The lower side of the cleaning vehicle chassis (1) includes a first cleaning device (5) and a second cleaning device (6); The front and rear ends of the sweeper chassis (1) are respectively provided with side plates (11), a pair of side plates (11) are located between the power device (2) and the front wheel device (4), and the side plates (11) are on the side plates (11). There are arc grooves (12) arranged up and down; The power device (2) includes a differential motor (21) and a rear wheel device, the output end of the differential motor (21) is connected to the input end of the rear axle, the axes of a pair of rear axle output shafts (23) are arranged in the front and rear, and It is rotatably mounted on the sweeper chassis (1) through a pair of bearing seats (22); The rear wheel device is a pair, and the pair of rear wheel devices are located symmetrically in front and rear of the pair of rear axle output shafts (23), and include a first sprocket (24), a second sprocket (26), a lift plate ( 31) and rear wheel (28); The middle part of the lifting plate (31) is rotatably installed on the rear axle output shaft (23), the lower part is vertically arranged in the middle part, the upper part is inclined to the right and forms an obtuse angle with the lower part, and the first sprocket (24) is fixedly installed On the output shaft (23) of the rear axle, the second sprocket (26) is fixedly mounted on one end of the first support shaft (29), and is connected with the first sprocket (24) through a first sprocket (24) wound around the first sprocket (24). The transmission chain (27) is connected, the middle part of the first support shaft (29) is rotatably installed at the lower part of the lifting plate (31), and the other end is fixedly installed with the rear wheel (28); The lifting device (3) comprises a first oil cylinder (37), a third sprocket (36), a second transmission chain (35), a column (33) and a connecting rod (32); the column (33) is vertical The two ends of the connecting rod (32) are respectively connected to the upper part of a pair of lifting plates (31), the piston end of the first oil cylinder (37) is connected to the push plate (34), and the two ends of the push plate (34) The third sprocket (36) is rotatably mounted on the upright column (33), and one end of the second transmission chain (35) is fixedly connected to the push plate (34) and the other end is fixedly connected to the push plate (34). One end is wound around the outside of the third sprocket (36) and connected to the connecting rod (32); The first cleaning device (5) is arranged between a pair of side plates (11), and includes a first cleaning motor (57), a cleaning roller (51) and a lifting assembly; The first cleaning motor (57) is located to the right of the cleaning roller (51), and the output end is fixedly connected to the second transmission wheel (56), The two ends of the cleaning roller (51) are respectively slidably arranged in the arc-shaped grooves (12) of the pair of side plates (11), and one end of the cleaning roller (51) is fixedly connected to a first transmission wheel (52), and the first transmission wheel (52) ) and the second drive wheel (56) are connected by a drive belt (55) wound around the outside thereof; The lifting assemblies are in a pair, and the pair of lifting assemblies are symmetrically arranged on the sweeper chassis (1) front and rear, and the lifting assemblies include a third oil cylinder (53) and a first regulating plate (54), the first regulating plate The left end of (54) is arranged on one end of the cleaning roller (51), and the right end is rotatably installed on the side plate (11). ; The third oil cylinder (53) is rotatably mounted on the sweeper chassis (1), and the piston end is rotatably mounted on the middle of the first regulating plate (54), on the first regulating plate (54) adjacent to the transmission belt (55). Set the tensioner (58). 2. The small cleaning vehicle according to claim 1, characterized in that, the second cleaning device (6) is arranged on the right part of the cleaning vehicle chassis (1), and comprises a support block (61), a fourth oil cylinder ( 62), a second cleaning motor (65), a first connecting plate (63) and a second connecting plate (64); the support block (61) is fixedly installed on the lower end of the sweeper chassis (1), and the lower end is connected to the first One end of the connecting plate (63) is rotatably connected in the up and down direction, the second connecting plate (64) is arranged front and rear, and one end is fixedly connected with the other end of the first connecting plate (63), and the other end is fixedly installed with a second cleaning motor (65). ), the output end of the second cleaning motor (65) is set downward and fixedly connected to the cleaning brush (66), the fourth oil cylinder (62) is rotatably mounted on the cleaning vehicle chassis (1), and the telescopic end is rotatably mounted on the the middle of the first connecting plate (63). 3. A small cleaning vehicle according to claim 2, characterized in that the tensioning device (58) comprises a second adjusting plate (581), a second tensioning wheel (582) and an elastic rod (583) ; One end of the second regulating plate (581) is rotatably mounted on the first regulating plate (54), and the other end is rotatably mounted on the second tensioning wheel (582), and the axis of the second tensioning wheel (582) is arranged back and forth The elastic rod (583) is mounted on the sweeper chassis (1) at one end and rotatably connected with the middle of the second adjusting plate (581) at the other end. 4 . The small cleaning vehicle according to claim 3 , wherein the second cleaning device ( 6 ) is a pair, and the pair of second cleaning devices ( 6 ) are symmetrically arranged in front and rear. 5 . 5. A small cleaning vehicle according to claim 2 or 3, characterized in that the front wheel device (4) comprises a front wheel (41), a second support shaft (42), a second oil cylinder (43) and a fixing plate (44); the front wheel (41) is rotatably installed in the middle of the second support shaft (42), the second oil cylinders (43) are a pair, and one end of the pair of second oil cylinders (43) are respectively The two ends and the other end of the second support shaft (42) are respectively installed on the fixing plate (44), and the fixing plate (44) is installed on the steering mechanism of the sweeper. The first oil cylinder (37) and the The second oil cylinder (43) operates synchronously. 6. A small cleaning vehicle according to claim 5, characterized in that the upper end of the column (33) is provided with a second sensing device, and the chassis (1) of the cleaning vehicle is provided with a first sensing device, so The first induction device is located below the upper part of the lifting plate (31), and is connected to the controller with the second induction device, and the controller controls the start and stop of the first oil cylinder (37). 7. A small cleaning vehicle according to claim 6, characterized in that further comprising a collection device, the collection device comprising a collection box (71) and a negative pressure device (72); the collection box (71) is installed A dust inlet is provided below the left end of the sweeper chassis (1) and at the right end, the dust inlet is adjacent to the cleaning roller (51), and the negative pressure device (72) is installed on the sweeper chassis (1) , and is connected to the collection box (71). 8. A small cleaning vehicle according to claim 7, characterized in that, the negative pressure device (72) comprises an exhaust fan and a filter device, and the intake end of the exhaust fan is connected to the collection box (71), and the outlet is connected to the collection box (71). The air end is connected with the filter device. 9 . The small cleaning vehicle according to claim 7 , wherein a first tension wheel ( 25 ) is rotatably installed at the lower part of the lift plate ( 31 ), and the first tension wheel ( 25 ) is located at the Between a sprocket (24) and the second sprocket (26), and the peripheral surface is in contact with the first transmission chain (27).