CN215948026U - Sweeping disc for sweeper - Google Patents

Abstract

The utility model provides a sweeping disc for a sweeper, which comprises a sweeping disc body, a driving mechanism, a height adjusting mechanism and a width adjusting mechanism, wherein the sweeping disc body is used for installing a cleaning part, the driving mechanism can drive the sweeping disc body to rotate, the height adjusting mechanism can drive the sweeping disc body to be switched between a first height and a second height, the first height is higher than the second height, the width adjusting mechanism can drive the sweeping disc body to move between a first position and a second position in a flexible mode and can control the sweeping disc body to stop at a target position. The width adjusting mechanism, the width adjusting push rod and the limiting mechanism are integrally matched to realize flexible swing, the aim of accurately controlling the target position to be reached is fulfilled, the requirements of various cleaning widths are met, and the width adjusting mechanism is simple in structure, safe and convenient to use, ingenious in structural design and good in universality.

Description

Sweeping disc for sweeper

Technical Field

The utility model relates to the field of environmental sanitation equipment, in particular to a sweeping disc for a sweeper.

Background

Due to the advantages of high working efficiency, good sweeping effect, manpower and cost saving, the sweeper (also called a cleaning vehicle or a sweeping machine) is widely used for cleaning the places such as roads, factories and scenic spots. Depending on the operation mode, the sweeper can be classified into a pure suction type, a pure sweeping type, a suction sweeping type, a washing sweeping type and the like, and whatever type of sweeper needs to be provided with a sweeping device with a sweeping disc as a core. The sweeping disc is also called as a sweeping brush or a disc brush and is generally circular, dense brush hairs are arranged on a disc-shaped base plate, a driving mechanism connected with the base plate drives the base plate and the brush hairs to rotate, and the brush hairs rub with the surface to be cleaned so as to take away the garbage. The sweeping disc sweeps the garbage within a certain width range to the position near the suction nozzle through rotating operation, and the suction nozzle sucks the garbage into the garbage can, so that the aims of sweeping and collecting the garbage are fulfilled.

The sweeping discs are generally arranged on two sides of the sweeper in pairs. When the sweeping task is executed, the sweeping car swings the sweeping discs on the two sides outwards to enlarge the sweeping width and cover the sweeping area as large as possible; when the sweeping task is not executed, the sweeping disc is retracted by the sweeping vehicle so as to avoid the damage caused by collision of the sweeping disc and the outer side barrier. In the sweeper in the current market, swinging out and withdrawing of a sweeping disc of the sweeper are mainly realized by a pneumatic or hydraulic push rod. Although the action speed of the pneumatic push rod type sweeping disc is high, the pneumatic push rod type sweeping disc can only swing out and retract to a preset position (namely, the sweeping disc can only be switched between two position points), the sweeping width is fixed, and the position of the limiting bolt can only be adjusted manually when the position is required to be adjusted. The hydraulic push rod type sweeping disc is low in cost, complex in structure, difficult to control stably and accurately, high in noise and required to be maintained frequently.

Patent document CN208949798U discloses a sweeping tray mechanism and a vehicle using the same. The sweeping disc mechanism comprises a fixed support, a telescopic device and a sweeping disc; the fixed support is connected with the sweeping disc through the telescopic device and used for enabling the sweeping disc to do lifting motion through the telescopic action of the telescopic device; this vehicle includes the aforementioned sweep mechanism, but this design can only achieve the operation of raising or lowering the sweep, and is not versatile.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a sweeping disc for a sweeper.

According to the present invention, there is provided a sweeping disk for a sweeper, comprising:

the sweeping disc body is used for installing a brushing part;

the driving mechanism can drive the sweeping disc body to rotate;

the height adjusting mechanism can drive the sweeping disc body to be switched between a first height and a second height, and the first height is higher than the second height;

and the width adjusting mechanism can drive the sweeping disk body to move between the first position and the second position in a flexible mode and can control the sweeping disk body to stop at the target position, and the target position is located between the first position and the second position.

Preferably, the second height can be adjusted by a pitch angle adjusting lever and the height adjusting mechanism performs the adjusted second height after the adjustment is completed.

Preferably, the height adjusting mechanism comprises a sweeping disc body support, a connecting plate, a sweeping disc arm, a height adjusting push rod and a sweeping disc arm support;

actuating mechanism, water spray frame are all installed sweep on the disk body support and actuating mechanism can order about through the pivot that self has and sweep the disk body and rotate, sweep the one end of dish arm, altitude mixture control push rod all through connecting plate and sweep disk body support clearance fit, sweep the other end of dish arm, altitude mixture control push rod and sweep disk arm support clearance fit, work as can order about when altitude mixture control push rod extends or shortens the actuating mechanism drives and sweeps the disk body and switches between first height and second height.

Preferably, the water spray frame can be replaced with a dust cover.

Preferably, the width adjusting mechanism comprises a width adjusting structure, a torsion spring and a fixing piece, the width adjusting structure is mounted on the sweeping disc arm support, the width adjusting structure comprises a central rotating shaft, an inner bearing, an intermediate shaft, an outer bearing and an outer shaft sleeve, and the sweeping disc arm support comprises a base plate, a second bottom plate and a second side plate;

the fixed piece and the second bottom plate are respectively arranged at the upper part and the lower part of the inner side surface of the base plate, the other ends of the sweeping disc arm and the height adjusting push rod are respectively hinged on the outer side surface of the base plate, the second side plate is positioned at the left side of the inner side surface of the base plate, the top of the second side plate is fixedly arranged on the fixed piece, the second bottom plate and the second side plate jointly enclose an accommodating space, and the intermediate shaft and the outer shaft sleeve are positioned in the accommodating space;

the central rotating shaft penetrates through the intermediate shaft, two ends of the intermediate shaft are respectively and fixedly mounted on the fixing part and the second bottom plate, the inner bearing is mounted between the central rotating shaft and the intermediate shaft in a matched mode, the intermediate shaft extends outwards in the direction perpendicular to the axial direction to form a connecting fork, the outer shaft sleeve is sleeved on the outer portion of the intermediate shaft and located above the connecting fork, the torsion spring is sleeved on the outer portion of the intermediate shaft and located below the connecting fork, the upper end of the torsion spring is connected with the connecting fork, the lower end of the torsion spring is connected with the second bottom plate, and the outer bearing is mounted between the intermediate shaft and the outer shaft sleeve in a matched mode.

Preferably, the width adjusting mechanism further comprises a limiting mechanism, a width adjusting push rod, a main bracket and a main support;

the main support is arranged on the vehicle body, one end of the main support is fixedly arranged on the main support, the other end of the main support is fixedly arranged on the outer shaft sleeve, one end of the width adjusting push rod is movably matched with the main support, and the other end of the width adjusting push rod is movably matched with the connecting fork;

when the width adjusting push rod extends to the longest, the sweeping disc body moves to a first position;

when the width adjusting push rod retracts to the shortest, the sweeping disc body moves to the second position.

Preferably, the limiting mechanism comprises a limiting block and a limiting bolt, the limiting block is fixed on the outer sleeve, a limiting hole is formed in the second side plate, and the limiting bolt is adjustably mounted on the limiting hole;

when the sweeping disc body moves to a target position, the end part of the limiting bolt is contacted and propped against the limiting block, so that the sweeping disc body can be prevented from continuously expanding outwards under the action of the torsion spring.

Preferably, the height adjusting push rod adopts a pneumatic type or a hydraulic type;

the width adjusting push rod is electric, and the structure of a motor and a gear is adopted to control the extension and retraction of the push rod of the width adjusting push rod;

the driving mechanism is driven by an electric motor or a hydraulic motor.

Preferably, the sweeping disc body support comprises a first bottom plate and a first side plate, the driving mechanism and the water spraying frame are both mounted on the first bottom plate, and the water spraying frame faces the outer side of the sweeping disc body;

the connecting plate is fixedly connected with the first side plate through the fixing hole and the inclination angle adjusting hole through bolts, wherein the inclination angle adjusting hole is an arc-shaped hole.

Preferably, the device also comprises a control mechanism, the target position can be preset in the control mechanism, and the sweeping disk body can be adjusted in position in an increasing or decreasing mode and stopped at the adjusted target position after the sweeping disk body reaches the target position.

Compared with the prior art, the utility model has the following beneficial effects:

1. the width adjusting mechanism, the width adjusting push rod and the limiting mechanism are integrally matched to realize flexible swing, the aim of accurately reaching a target position is fulfilled, the requirements of various cleaning widths are met, and the width adjusting mechanism is simple in structure, safe and convenient, ingenious in structural design and good in universality.

2. According to the utility model, the torsion spring is arranged between the middle shaft of the width adjusting structure and the sweeping disc arm support, the middle shaft and the sweeping disc arm support are not rigidly connected but are connected together through the torsion spring, and when the sweeping disc collides with an obstacle, the impact is buffered and absorbed by the torsion spring, so that the damage of the impact force on the electric width adjusting push rod is avoided.

3. Compared with pneumatic and hydraulic type, the electric width adjusting push rod is simple in structure and convenient to use, and can stably and accurately drive the sweeping disc to swing out and retract to a stopping position, so that the sweeping width can be flexibly adjusted.

4. The limiting mechanism can finely adjust the limiting position by rotating the limiting bolt, and can expand or reduce the range between the first position and the second position to a certain extent; the regulation of the pitch angle in the front-back direction and the inclination angle in the left-right direction of the sweeping disc body can be realized respectively by regulating the fixed positions of the pitch angle regulating rod and the connecting plate on the inclination angle regulating hole, and the practicability is high.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic top view of a sweeping tray according to the present invention;

FIG. 2 is a schematic perspective view of the present invention, showing the connection structure of the scan arm and the elevation connection push rod;

FIG. 3 is a schematic perspective view of the present invention, showing the connection structure of the pan arm, the height-connecting push rod, the width-adjusting structure, and the width-adjusting push rod;

FIG. 4 is a schematic view of the width adjustment structure of the sweeping disk and the structure of the sweeping disk arm support in FIGS. 1, 2 and 3;

figure 5 is a cross-sectional view a-a of the width adjustment structure and sweeper arm support of figure 4.

The figures show that:

1-sweeper body 10-width adjusting structure

2-drive mechanism 1001-central rotating shaft

3-Water spray frame 1002-inner bearing

4-sweeping disk body support 1003-intermediate shaft

401-first bottom plate 1004-outer bearing

402-first side plate 1005-outer shaft sleeve

5-connecting plate 1006-connecting fork

501-fixed hole 11-torsion spring

502-inclination angle adjusting hole 12-limiting device

6-sweeping disc arm 1201-limiting block

7-height adjusting push rod 1202-limiting hole

8-pitch angle adjusting rod 1203-limit bolt

9-sweeping disk arm support 13-fixing piece

901-base plate 14-width regulating push rod

902-second base plate 15-main support

903-second side plate 16-Main support

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

The utility model provides a sweeping disc for a sweeper, which comprises a sweeping disc body 1, a driving mechanism 2, a height adjusting mechanism and a width adjusting mechanism as shown in figure 1.

The sweeping disk body 1 is used for installing a brushing part, for example, the brushing part adopts brush hair matched with the sweeping disk body 1, the brushing part and the sweeping disk body 1 are detachably connected, and when the brushing part is seriously worn, a new brushing part can be replaced at any time.

The driving mechanism 2 can drive the sweeping disk body 1 to rotate, specifically, the driving mechanism 2 can drive the sweeping disk body 1 to rotate through a rotating shaft of the driving mechanism 2, and the driving mechanism 2 is preferably driven by an electric motor or a hydraulic motor.

Height adjusting mechanism can order about to sweep disk body 1 and switch between first height and second height, and first height is higher than the second height, when needs clean the operation, and height adjusting mechanism work control sweeps disk body 1 and descends to the second height and makes brush piece and ground contact implement and clean the operation, and height adjusting mechanism work control sweeps disk body 1 and rises to first height after finishing cleaning, cleans this moment and leaves ground, but the motor sweeper accelerating leaves the area of cleaning. Wherein, the second height can be adjusted and the second height after the adjustment is accomplished to the height adjustment mechanism execution through pitch angle adjusting rod 8, and the length of pitch angle adjusting rod 8 can manually change to adjust the front and back pitch angle of sweeping disk body 1, thereby adapt to the brush hair situation, the ground condition and the demand of cleaning of different models.

The width adjusting mechanism can drive the sweeping disc body 1 to move between a first position and a second position in a flexible mode and can control the sweeping disc body 1 to stop at a target position, the target position is located between the first position and the second position, the first position is close to the center of the vehicle body, the second position is the position of the sweeping disc body 1 after moving from the first position to the direction far away from the center of the vehicle body, and specifically, the sweeping disc body 1 can be accurately stopped at the target position by controlling the moving stroke of the width adjusting mechanism according to the cleaning requirement.

Further, the sweeping disc device further comprises a control mechanism, the target position can be preset in the control mechanism, and the sweeping disc body 1 can be adjusted in a position increasing or decreasing manner and stopped at the adjusted target position after the sweeping disc body 1 reaches the target position, for convenience of understanding, for example, the maximum distance that the sweeping disc body 1 can move, namely the distance between the first position and the second position, is 2.5 meters, the distance between the current target position and the first position is 1.8 meters, after the width adjusting mechanism is controlled to reach 1.8 meters, it is found that outward movement is needed to be more suitable for cleaning, at this time, the sweeping disc body 1 can be operated to move outward again, each outward movement is 0.1 meter, and when the sweeping disc body 1 is operated to move inward, each movement is 0.1 meter, wherein, according to an actual application scenario, 0.1 meter can be set in the control mechanism at will, for example, 0.05 meter and the like.

The sweeping disc type water spraying device also comprises a water spraying frame 3, a height adjusting mechanism comprises a sweeping disc body support 4, a connecting plate 5, a sweeping disc arm 6, a height adjusting push rod 7 and a sweeping disc arm support 9, a driving mechanism 2 and the water spraying frame 3 are both installed on the sweeping disc body support 4, one end of the sweeping disc arm 6 and one end of the height adjusting push rod 7 are both movably matched with the sweeping disc body support 4 through the connecting plate 5, the other end of the sweeping disc arm 6 and the other end of the height adjusting push rod 7 are movably matched with the sweeping disc arm support 9, and when the height adjusting push rod 7 extends or shortens, the driving mechanism 2 can be driven to drive the sweeping disc body 1 to be switched between a first height and a second height.

Further, the sweeping disk 1 is fixedly connected to a rotating shaft of a driving mechanism, the sweeping disk support 4 is in an L-shaped structure and comprises a first bottom plate 401 and a first side plate 402, and the driving mechanism is installed on the first bottom plate 401; the water spraying frame 3 is fan-shaped and is installed on the first bottom plate 401 and faces the outer side of the sweeping tray body 1, and the first side plate 402 and the connecting plate 5 are fixed through the fixing hole 501 and the inclination angle adjusting hole 502 by bolts. The inclination angle adjusting hole 502 is arc-shaped and has a certain length, and the connection angle between the first side plate 402 and the connection plate 5 can be changed through the inclination angle adjusting hole 502, so that the left and right inclination angles of the sweeping tray body 1 can be adjusted. The length of the pitch angle adjusting rod 8 can be changed manually, so that the front and back pitch angles of the sweeping disc body 1 can be adjusted.

The width adjusting structure 10 is installed on a sweeping disc arm support 9, the sweeping disc arm support 9 comprises a base plate 901, a second bottom plate 902 and a second side plate 903, one end of a sweeping disc arm 6 is hinged to the connecting plate 5, the other end of the sweeping disc arm 6 is hinged to the base plate 901, one end of a push rod of a height adjusting push rod 7 is hinged to the connecting plate 5, one end of a cylinder of the height adjusting push rod 7 is hinged to the base plate 901, one end of a pitch angle adjusting rod 8 is hinged to the connecting plate 5, and the other end of the pitch angle adjusting rod is hinged to the base plate 901. The inclination angle adjusting hole 502 and the pitch angle adjusting rod 8 are matched with each other, so that the contact area and the contact pressure of the sweeping disc body 1 and the ground can be adjusted to a proper degree, and different bristle conditions, ground conditions and cleaning requirements can be met.

The height adjusting push rod 7 is preferably pneumatic or hydraulic. When the cleaning task is executed, the push rod on the height adjusting push rod 7 extends outwards, the height of the sweeping disc body 1 correspondingly descends, and the sweeping disc body is in contact with the ground to clean garbage; when the cleaning task is not executed, the push rod is retracted inwards, the height of the cleaning disc body 1 rises correspondingly, and the cleaning disc body is separated from the ground to avoid collision.

In practical application, the water spray frame 3 can be replaced by a dustproof cover, so that the sweeper can work in a dry sweeping mode.

Specifically, the width adjustment mechanism includes a width adjustment structure 10, a torsion spring 11 and a fixing member 13, the width adjustment structure 10 includes a central rotating shaft 1001, an inner bearing 1002, an intermediate shaft 1003, an outer bearing 1004 and an outer shaft sleeve 1005, the fixing member 13, a second bottom plate 902 are respectively installed on the upper portion and the lower portion of the inner side surface of a base plate 901, a sweeping disc arm 6, the other end of a height adjustment push rod 7 is respectively hinged on the outer side surface of the base plate 901, a second side plate 903 is located on the left side of the inner side surface of the base plate 901 and is installed on the fixing member 13 through bolt fastening at the top, the fixing member 13, the second bottom plate 902 and the second side plate 903 enclose into an accommodating space together, and the intermediate shaft 1003 and the outer shaft sleeve 1005 are both located in the accommodating space.

Further, a central rotating shaft 1001 penetrates through an intermediate shaft 1003, two ends of the central rotating shaft 1001 are respectively and fixedly mounted on the fixing piece 13 and the second bottom plate 902, an inner bearing 1002 is mounted between the central rotating shaft 1001 and the intermediate shaft 1003 in a matching mode, the intermediate shaft 1003 extends outwards along a direction perpendicular to the axial direction to form an integrally connected connecting fork 1006, the connecting fork 1006 is located at the lower portion of the intermediate shaft 1003, an outer shaft sleeve 1005 is sleeved outside the intermediate shaft 1003 and located above the connecting fork 1006, a torsion spring 11 is sleeved outside the intermediate shaft 1003 and located below the connecting fork 1006, the torsion spring 11 is located between the connecting fork 1006 and the second bottom plate 902, the upper end of the torsion spring 11 is connected with the connecting fork 1006, the lower end of the torsion spring 11 is connected with the second bottom plate 902, and an outer bearing 1004 is mounted between the intermediate shaft 1003 and the outer shaft sleeve 1005 in a matching mode.

Specifically, the width adjusting mechanism further comprises a limiting mechanism 12, a width adjusting push rod 14, a main support 15 and a main support 16, the main support 16 is mounted on the vehicle body, one end of the main support 15 is tightly mounted on the main support 16, the other end of the main support 15 is tightly mounted on an outer shaft sleeve 1005, one end of the width adjusting push rod 14 is movably matched with the main support 16, and the other end of the width adjusting push rod 14 is movably matched with the connecting fork 1006.

The limiting mechanism 12 comprises a limiting block 1201 and a limiting bolt 1203, the limiting block 1201 is fixed on the outer shaft sleeve 1005, a limiting hole 1202 is formed in the second side plate 903, and the limiting bolt 1203 is adjustably mounted on the limiting hole 1202.

When the width adjusting push rod 14 extends to the longest, the intermediate shaft 1003 can be driven to rotate clockwise, the second base plate 902 can be flexibly driven to rotate around the axis by the torsion spring 11, and the sweeping disk body 1 moves to the target position, and when the width adjusting push rod 14 extends to the longest, the sweeping disk body 1 moves to the first position.

When the width adjusting push rod 14 retracts to move, the intermediate shaft 1003 can be driven to rotate counterclockwise, the second base plate 902 can be flexibly driven to rotate around the axis by the torsion spring 11, and the sweeping disk body 1 can be moved to the target position, and when the width adjusting push rod 14 retracts to the shortest, the sweeping disk body 1 can be moved to the second position. After the sweeping disk body 1 moves to the target position, the end part of the limiting bolt 1203 is contacted and propped against the limiting block 1201, and then the sweeping disk body 1 can be prevented from continuously expanding outwards under the action of the torsion spring 11.

The height adjusting push rod 7 and the width adjusting push rod act in a combined manner to realize the complete swinging out and withdrawing of the sweeping disc. The width adjustment push rod 14 is of an electric type, and adopts a structure of a stepping motor and a gear to control the extension and retraction of the push rod.

In order to prolong the service life of the sweeping disc, the anti-collision buffer design is realized by adding the torsion spring 11, so that the electric push rod is prevented from being damaged when being impacted by the outside, meanwhile, the sweeping disc body 1 can be driven to swing and stop at a required position according to actual requirements, and the defect that an air cylinder or an oil cylinder can only stop at two positions is avoided.

The working principle of the utility model is as follows:

in normal operation, the torsion spring 11 is initially pre-tensioned, and there is no relative movement between the intermediate shaft 1003 and the second base plate 902 connected by the torsion spring 11. Since the second base plate 902 is part of the swashplate arm support 9, it can also be considered that the torsion spring 11 connects the intermediate shaft 1003 and the swashplate arm support 9. The swashplate arm support 9 has a tendency to rotate counterclockwise under the action of the pre-tightening force of the torsion spring 11. At this time, the stopper mechanism 12 functions to restrict the wiper arm holder 9 to a position where the second side plate 903 is parallel to the outside of the connecting fork 106. When the width adjusting push rod 14 retracts inwards, the intermediate shaft 1003 is driven to rotate anticlockwise through the connecting fork 1006, and the sweeping disk arm support 9 and the sweeping disk arm 6 connected with the sweeping disk arm support 9 rotate anticlockwise to drive the sweeping disk body 1 to complete swinging-out action. When the width adjusting push rod 14 extends outwards, the intermediate shaft 1003 is driven to rotate clockwise by the connecting fork 1006, and the sweeping disk arm support 9 and the sweeping disk arm 6 connected with the sweeping disk arm support are driven to rotate clockwise to drive the sweeping disk body 1 to complete the retracting action.

Due to the adoption of the electric push rod, the extending position of the width adjusting push rod 14 can be controlled in real time within an allowable range, so that the swinging-out position of the sweeping tray body 1 can be adjusted in real time. This means that the width of cleaning of motor sweeper can be real-time, nimble adjusting to adapt to different road conditions and clean demand, thereby improve work efficiency.

When the sweeping disc body 1 is in work at a swinging position and meets a large obstacle, the sweeping disc body 1 collides with the obstacle, so that the sweeping disc body 1 moves in a retracting direction, and the sweeping disc arm support 9 and the central rotating shaft 1001 rotate clockwise through force transmission of the link mechanism. Since the collision is sudden, the rotation of the wiper arm support 9 and the center rotary shaft 1001 is also sudden. The torsion spring 11 acts against this sudden rotation, the torsion spring 11 being arranged to convert the kinetic energy of this rotation into the elastic potential energy of the spring, while the intermediate shaft 1003 and the width-adjusting push rod 14 connected thereto remain stationary during this time. Therefore, the torsion spring 11 plays a role in buffering, and the collision force applied to the sweeping disk body 1 is not transmitted to the width adjusting push rod 14, so that the electric push rod is protected from being damaged, and the service life is prolonged.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. A sweeping disk for a sweeper is characterized by comprising:

the sweeping disc body (1) is used for installing a brushing part;

the driving mechanism (2) can drive the sweeping disc body (1) to rotate;

the height adjusting mechanism can drive the sweeping disc body (1) to switch between a first height and a second height, and the first height is higher than the second height;

a width adjustment mechanism capable of driving the scan disk body (1) between a first position and a second position in a flexible manner and capable of stopping the scan disk body (1) at a target position between the first position and the second position.

2. Sweeping tray for a sweeper according to claim 1, characterized in that the second height is adjustable by means of a pitch angle adjustment lever (8) and that the height adjustment mechanism performs the adjusted second height after the adjustment has been completed.

3. The sweeping tray for the sweeping vehicle according to claim 1, further comprising a water spraying frame (3), wherein the height adjusting mechanism comprises a sweeping tray body support (4), a connecting plate (5), a sweeping tray arm (6), a height adjusting push rod (7) and a sweeping tray arm support (9);

actuating mechanism (2), water spray frame (3) are all installed sweep disk body (1) rotation of sweeping through the pivot that self has on disk body support (4) and actuating mechanism (2), sweep the one end of dish arm (6), altitude mixture control push rod (7) and all pass through connecting plate (5) and sweep disk body support (4) clearance fit, sweep the other end of dish arm (6), altitude mixture control push rod (7) and sweep dish arm support (9) clearance fit, work as can order about when altitude mixture control push rod (7) extension or shorten actuating mechanism (2) drive sweep disk body (1) and switch between first height and second height.

4. Sweeping tray for a sweeper according to claim 3, characterized in that the water-spraying frame (3) can be replaced by a dust cover.

5. The sweeping vehicle for the sweeping vehicle according to claim 3 or 4, wherein the width adjusting mechanism comprises a width adjusting structure (10), a torsion spring (11) and a fixing piece (13), the width adjusting structure (10) is mounted on a sweeping vehicle arm support (9), the width adjusting structure (10) comprises a central rotating shaft (1001), an inner bearing (1002), an intermediate shaft (1003), an outer bearing (1004) and an outer bushing (1005), and the sweeping vehicle arm support (9) comprises a base plate (901), a second bottom plate (902) and a second side plate (903);

the fixed piece (13) and the second bottom plate (902) are respectively installed at the upper part and the lower part of the inner side surface of the base plate (901), the other ends of the sweeping disc arm (6) and the height adjusting push rod (7) are respectively hinged to the outer side surface of the base plate (901), the second side plate (903) is located on the left side of the inner side surface of the base plate (901), the top of the second side plate is fixedly installed on the fixed piece (13), the second bottom plate (902) and the second side plate (903) jointly enclose an accommodating space, and the intermediate shaft (1003) and the outer shaft sleeve (1005) are located in the accommodating space;

center pivot (1001) run through jackshaft (1003) and both ends are tight respectively and are installed on mounting (13), second bottom plate (902), interior bearing (1002) match is installed between center pivot (1001) and jackshaft (1003), jackshaft (1003) outwards extend in the axial direction of perpendicular to and connect branch (1006), and outer axle sleeve (1005) suit is in the outside of jackshaft (1003) and be located connect the top of branch (1006), torsion spring (11) suit is in the outside of jackshaft (1003) and be located connect the below of branch (1006), the upper end of torsion spring (11) is connected connect branch (1006), and the lower extreme of torsion spring (11) is connected second bottom plate (902), outer bearing (1004) match is installed between jackshaft (1003) and outer axle sleeve (1005).

6. The sweeping tray for the sweeper according to claim 5, wherein the width adjusting mechanism further comprises a limiting mechanism (12), a width adjusting push rod (14), a main bracket (15) and a main support (16);

the main support (16) is mounted on the vehicle body, one end of the main support (15) is fixedly mounted on the main support (16), the other end of the main support (15) is fixedly mounted on the outer shaft sleeve (1005), one end of the width adjusting push rod (14) is movably matched with the main support (16), and the other end of the width adjusting push rod (14) is movably matched with the connecting fork (1006);

when the width adjusting push rod (14) extends to move, the middle shaft (1003) can be driven to rotate clockwise, the second bottom plate (902) is driven to rotate around the axis through the torsion spring (11), and the sweeping disc body (1) is moved to a target position, and when the width adjusting push rod (14) extends to the longest length, the sweeping disc body (1) moves to a first position;

when the width adjusting push rod (14) retracts to move, the middle shaft (1003) can be driven to rotate anticlockwise, the second bottom plate (902) is driven to rotate around the axis through the torsion spring (11), and the sweeping disc body (1) is moved to a target position, and when the width adjusting push rod (14) retracts to the shortest length, the sweeping disc body (1) moves to a second position.

7. The sweeping tray for the sweeping vehicle according to claim 6, wherein the limiting mechanism (12) comprises a limiting block (1201) and a limiting bolt (1203), the limiting block (1201) is fixed on the outer shaft sleeve (1005), a limiting hole (1202) is formed in the second side plate (903), and the limiting bolt (1203) is adjustably mounted on the limiting hole (1202);

after the sweeping disc body (1) moves to a target position, the end part of the limiting bolt (1203) is in contact with and butts against the limiting block (1201), and therefore the sweeping disc body (1) can be prevented from being continuously unfolded outwards under the action of the torsion spring (11).

8. Sweeping disc for a sweeper according to claim 6, characterized in that the height adjusting push rod (7) is of pneumatic or hydraulic type;

the width adjusting push rod (14) is electric, and the extension and retraction of the push rod are controlled by adopting a motor and gear structure.

9. Sweeping tray for a sweeper according to claim 1, characterized in that the driving mechanism (2) is driven by an electric or hydraulic motor.

10. Sweeping tray for a sweeper according to claim 3, characterized in that the sweeping tray body support (4) comprises a first bottom plate (401) and a first side plate (402), the driving mechanism (2) and the water spray frame (3) are both mounted on the first bottom plate (401) and the water spray frame (3) faces the outer side of the sweeping tray body (1);

the first side plate (402) is provided with a fixing hole (501) and an inclination angle adjusting hole (502), the connecting plate (5) is fixedly connected with the first side plate (402) through the fixing hole (501) and the inclination angle adjusting hole (502) by bolts, and the inclination angle adjusting hole (502) is an arc-shaped hole.

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