CN220888462U - Road sweeper - Google Patents

Abstract

The utility model discloses a road sweeper, which comprises a machine body, a cleaning brush, a lifting mechanism and a chain wheel, wherein the cleaning brush can be connected with the machine body in a vertically floating manner, the lifting mechanism comprises a chain and a driving piece, the chain is in transmission connection with the cleaning brush, the driving piece is connected with the chain to drive the cleaning brush to lift, the chain wheel is connected with the machine body, one end of the chain is connected with the cleaning brush, and the other end of the chain bypasses the chain wheel to be connected with the driving piece. According to the road sweeper disclosed by the embodiment of the utility model, the occurrence of abnormal sound phenomenon of the road sweeper can be reduced through the transmission connection of the chains, and the damage of the driving part can be avoided.

Description

Road sweeper

Technical Field

The utility model relates to the technical field of road cleaning equipment, in particular to a road sweeper.

Background

Road sweepers are a type of mechanical equipment that is specifically used to sweep roads and streets. It is usually operated by a driver and may have a cleaning brush and a dust extraction device. The road sweeper can remove garbage, dust, leaves and other sundries on the road, and keep the road clean and tidy. Road sweepers are commonly used in urban streets, parking lots, squares and other public areas, as well as in industrial areas and construction sites. The road sweeper is simple and efficient to operate, and the road cleaning efficiency can be greatly improved.

In the related art, when the cleaning brush works on uneven roads such as pothole roads, periodic abnormal sounds are often generated by the road sweeper due to the rigid connection between the cleaning brush and the driving member. In the road sweeper, a driving piece connected with the cleaning brush is close to the cleaning brush, and sediment, water vapor and the like which are swept up by the cleaning brush on the ground are easy to gather on the driving piece, so that the driving piece is blocked and rusted, and the driving piece is easy to damage.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a road sweeper capable of reducing abnormal noise and avoiding damage to driving members.

According to the road sweeper provided by the embodiment of the utility model, the road sweeper comprises a machine body, a cleaning brush, a lifting mechanism and a chain wheel, wherein the cleaning brush can be connected with the machine body in a vertically floating manner, the lifting mechanism comprises a chain and a driving piece, the chain is in transmission connection with the cleaning brush, the driving piece is connected with the chain to drive the cleaning brush to lift, the chain wheel is connected with the machine body, one end of the chain is connected with the cleaning brush, and the other end of the chain bypasses the chain wheel to be connected with the driving piece.

According to the road sweeper disclosed by the embodiment of the utility model, the occurrence of abnormal sound phenomenon of the road sweeper can be reduced through the transmission connection of the chains, and the damage of the driving part can be avoided.

In addition, the road sweeper according to the above embodiment of the present utility model may further have the following additional technical features:

Optionally, the sprocket is higher than the connection point of the chain and the cleaning brush.

Optionally, the driving member is a linear driving member and is configured to drive the chain in a horizontal direction.

Optionally, the road sweeper further comprises a rotating arm, wherein the rotating arm is respectively connected with the machine body and the cleaning brush, and the rotating arm can rotate relative to the machine body so as to lift the cleaning brush.

Optionally, the chain is connected with the rotating arm to be in transmission connection with the cleaning brush, and a connection point of the chain and the rotating arm is closer to one end of the rotating arm connected with the cleaning brush than a rotation shaft of the rotating arm and the machine body.

Optionally, the road sweeper further comprises a first elastic piece, wherein the first elastic piece is respectively connected with the rotating arm and the machine body and is configured to apply an elastic force for reducing the height of the cleaning brush to the rotating arm.

Optionally, the road sweeper further comprises a support member connected with the machine body and located at the lower side of the rotating arm so as to support the rotating arm.

Optionally, the support piece includes spacing seat, second elastic component and buffer unit, spacing seat with the organism links to each other, the second elastic component with spacing seat links to each other, buffer unit with the second elastic component links to each other, just the second elastic component is located buffer unit with between the spacing seat, buffer unit configuration with the rocking arm is along upper and lower direction relatively, in order to support the rocking arm.

Optionally, the rotating arms are arranged on the left side and the right side of the machine body, the cleaning brush extends along the left-right direction, and two ends of the cleaning brush are respectively hinged with the corresponding rotating arms.

Optionally, the cleaning brush is rotatable around predetermined axis, and predetermined axis extends along left and right directions, the organism left side is equipped with elevating system, and the transmission is connected the left end of cleaning brush, the organism right side is equipped with elevating system, and the transmission is connected the right-hand member of cleaning brush.

Drawings

Fig. 1 is a schematic view of a road sweeper in accordance with some embodiments of the present utility model.

Fig. 2 is a schematic view of a road sweeper (cleaning a road surface) in some embodiments of the present utility model.

Fig. 3 is a schematic view (elevation) of a sweeper in accordance with some embodiments of the present utility model.

Fig. 4 is a schematic view of a road sweeper (self-adjusting) in some embodiments of the present utility model.

Fig. 5 is a top view of a road sweeper in accordance with some embodiments of the present utility model.

Reference numerals:

The cleaning brush 20 comprises a sweeper 100, a machine body 10, a cleaning brush 20, a lifting mechanism 30, a chain 31, a driving member 32, a sprocket 33, a rotating arm 40, a first elastic member 50, a supporting member 60, a limiting seat 61, a second elastic member 62, a buffer member 63, an up-down direction A-A, a front-back direction B-B and a left-right direction C-C.

Detailed Description

The utility model provides a road sweeper 100, which can reduce the occurrence of abnormal noise and avoid the damage of a driving piece 32.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1 to 4, according to a road sweeper 100 in an embodiment of the present utility model, the road sweeper 100 may include a body 10, a cleaning brush 20, and a lifting mechanism 30.

Wherein, the machine body 10 can walk on the road surface, the cleaning brush 20 can float up and down and is connected with the machine body 10, in order to float up and down relative to the machine body 10, in order to clean the road surface; the lifting mechanism 30 may include a chain 31 and a driving member 32, the chain 31 may be in transmission connection with the cleaning brush 20, and the driving member 32 is connected with the chain 31 to drive the cleaning brush 20 to lift, so that the occurrence of abnormal noise of the road sweeper 100 can be reduced, and damage to the driving member 32 can be avoided.

Specifically, the chain 31 may be connected to the cleaning brush 20 and the driving member 32, respectively, and the driving member 32 may be driven by the chain 31 to drive the cleaning brush 20 to float downward, so that the cleaning brush 20 contacts and cleans the road surface; when the cleaning brush 20 is used for cleaning, the cleaning brush 20 can be subjected to impact vibration due to complex and changeable road surface conditions, at the moment, the chain 31 can absorb the impact of the rolling brush so as to reduce abnormal sound, and meanwhile, the vibration impact can be prevented from being transmitted to the driving piece 32, so that the driving piece 32 is ensured to be intact; in short, the driving member 32 can be flexibly connected with the cleaning brush 20 through the chain 31, so as to reduce abnormal noise generated during cleaning operation, and avoid vibration transmitted to the driving member 32, which results in damage to the driving member 32. When the cleaning brush 20 is not in operation, the driving member 32 may be driven by the chain 31 to drive the cleaning brush 20 to float upward so that the cleaning brush 20 is away from the road surface.

In addition, the chain 31 has a certain length, so that the cleaning brush 20 and the driving member 32 are spaced apart by a predetermined distance, and the driving member 32 is far away from the road surface, so as to isolate the driving member 32 from damage caused by the road surface, i.e. from damage caused by sediment, water vapor and the like splashed on the road surface.

In operation, the driving piece 32 can lower the cleaning brush 20 through the chain 31 and cooperate with the dead weight of the cleaning brush 20, so that the cleaning brush 20 can move downwards to be attached to the road surface, and the cleaning of the road surface is realized; when not in operation, the driving member 32 can apply force to the cleaning brush 20 upwards through the chain 31 to overcome the gravity of the cleaning brush 20, so as to drive the cleaning brush 20 to lift.

Therefore, according to the road sweeper 100 of the embodiment of the present utility model, the occurrence of abnormal noise of the road sweeper 100 can be reduced and the damage of the driving member 32 can be avoided by the transmission connection of the chain 31.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the elevating mechanism 30 may further include a sprocket 33, the sprocket 33 may be coupled to the body 10, one end of the chain 31 is coupled to the cleaning brush 20, and the other end is coupled to the driving member 32 by bypassing the sprocket 33, so that a force transmission path may be changed by the sprocket 33, facilitating arrangement of the driving member 32 in the body 10.

For example, the chain 31 may overlap the sprocket 33 such that the chain 31 may be divided into a first portion and a second portion, the first portion being the chain 31 between the cleaning brush 20 and the sprocket 33, the second portion being the chain 31 between the sprocket 33 and the driving member 32, the first portion may extend in a substantially vertical direction, the second portion may extend in a substantially horizontal direction, the driving member 32 may apply a force in a horizontal direction to drive the cleaning brush 20 to float up and down through the chain 31, so that the installation height of the driving member 32 in the machine body 10 may be reduced such that the height of the sweeper 100 is reduced, and miniaturization is achieved. In addition, the chain 31 can be lapped with the teeth on the chain wheel 33, so that the conditions of slipping, shaking and the like of the chain 31 are reduced, and the stability of cleaning operation is ensured.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the sprocket 33 may be higher than the connection point of the chain 31 with the cleaning brush 20, so that the chain 31 overlapped on the sprocket 33 may be tightened by gravity, ensuring that the force is stably transmitted along the chain 31, so that the sweeper 100 can stably work. Conversely, if the sprocket 33 is not higher than the connection point between the chain 31 and the cleaning brush 20, the chain 31 itself has a certain flexibility and bending, and under the action of gravity, the chain 31 will loosely overlap the sprocket 33, so that the force transmission cannot be realized, and the driving member 32 cannot stably drive the cleaning brush 20 to float up and down.

Referring to fig. 2 through 4, in some embodiments of the present utility model, the driving member 32 may be a linear driving member 32 and configured to drive the chain 31 in a horizontal direction. The linear driving member 32 refers to a driving member 32 that can be reciprocally driven along a straight line, such as an air cylinder, a hydraulic cylinder, an electric push rod, or the like. It can be understood that the linear driving member 32 can drive the chain 31 in the horizontal direction, so that the chain 31 can reciprocate in the horizontal direction, thereby driving the cleaning brush 20 to float in the up-down direction, and the linear driving member 32 has high precision, and can accurately control the up-down floating stroke of the cleaning brush 20, thereby facilitating the cleaning operation of the sweeper 100.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the sweeper 100 may further include a swivel arm 40, the swivel arm 40 being connected to the machine body 10 and the cleaning brush 20, respectively, the swivel arm 40 being rotatable with respect to the machine body 10 to raise and lower the cleaning brush 20; it will be appreciated that the driving member 32 may be driven by the chain 31 to drive the cleaning brush 20 to float up and down, wherein the rotating arm 40 may be rotated with respect to the machine body 10 to follow the movement of the cleaning brush 20, the degree of freedom of the cleaning brush 20 may be limited in a horizontal direction by the rotating arm 40, so that the cleaning brush 20 may stably work,

Referring to fig. 2 to 4, in some embodiments of the present utility model, the chain 31 may be connected to the rotating arm 40 to drivingly connect the cleaning brush 20, and the connection point of the chain 31 and the rotating arm 40 is closer to one end of the rotating arm 40 connected to the cleaning brush 20 than the rotation axis of the rotating arm 40 and the machine body 10, so that the driving member 32 can conveniently drive the cleaning brush 20 to lift and lower the power consumption of the driving member 32.

It will be appreciated that the chain 31 is connected to the rotating arm 40, and the driving member 32 can drive the rotating arm 40 to rotate relative to the machine body 10 through the transmission of the chain 31, so as to drive the cleaning brush 20 connected to the rotating arm 40 to float up and down, therefore, the connection point of the chain 31 and the rotating arm 40 can be close to one end of the rotating arm 40 connected to the cleaning brush 20 and far away from the rotating shaft of the rotating arm 40 and the machine body 10, so that the arm of force of the driving force on the rotating shaft of the rotating arm 40 and the machine body 10 can be prolonged, and the driving member 32 can drive the rotating arm 40 to rotate relative to the machine body 10 with lower power, so as to realize lifting of the cleaning brush 20.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the road sweeper 100 may further include a first elastic member 50, and the first elastic member 50 may be connected to the rotating arm 40 and the machine body 10, respectively, and configured to apply an elastic force to the rotating arm 40 to reduce the height of the cleaning brush 20, so as to reduce noise generated from the road sweeper 100.

The driving member 32 can drive the cleaning brush 20 to move upwards through the transmission of the chain 31, and the first elastic member 50 can apply an elastic force to the rotating arm 40 to reduce the height of the cleaning brush 20, in other words, the first elastic member 50 and the driving member 32 can respectively apply opposite forces to the rotating arm 40 so as to tighten the chain 31, thereby ensuring stable transmission of the force on the chain 31; and the impact vibration of the machine body 10 during road walking is transmitted to the rotating arm 40, and at this time, the first elastic member 50 and the chain 31 can absorb the impact vibration, so as to avoid affecting the operation and reduce abnormal sound.

In addition, the elastic force of the first elastic member 50 can increase the pressure of the cleaning brush 20 against the road surface during operation, thereby improving the cleaning effect of the cleaning brush 20.

Next, in some specific examples, the chain 31 and the first elastic member 50 may be connected to both ends of the rotation arm 40, respectively, and a connection position of the rotation arm 40 to the body 10 may be located between both ends of the rotation arm 40, and the first elastic member 50 may apply a tensile force to the rotation arm 40 and tighten the chain 31 by a lever principle so that the rotation arm 40 may stably float up and down.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the sweeper 100 may further include a support member 60, and the support member 60 may be connected to the machine body 10 and positioned at a lower side of the rotating arm 40 to support the rotating arm 40, so that the brush bristles of the cleaning brush 20 may be automatically adjusted after being worn, thereby ensuring a cleaning effect.

In detail, the cleaning brush 20 may include bristles, which may have a certain strength so that the cleaning brush 20 may be supported on a road surface; during cleaning operation of the road sweeper 100, the brush bristles are worn down along with the time, the cleaning brush 20 is affected by the dead weight and the elastic force of the first elastic member 50 is downward attached to the road surface, and then the rotating arm 40 can be supported on the supporting member 60, that is, the supporting force of the brush bristles and the supporting member 60 can be balanced with the elastic force of the first elastic member 50 and the gravity of the cleaning brush 20, so that the cleaning brush 20 can stably operate, and automatic adjustment is realized.

In addition, the supporting member 60 may have a predetermined position, and when the rotating arm 40 presses the supporting member 60 to the predetermined position, the rotating arm 40 is limited and cannot be pressed down further, so as to avoid abrasion of the rotating arm 40 contacting with the road surface.

Referring to fig. 2 to 4, in some embodiments of the present utility model, the support 60 may include a stopper 61, a second elastic member 62, and a buffer 63.

Wherein, spacing seat 61 can link to each other with organism 10, and second elastic component 62 can link to each other with spacing seat 61, and buffer part 63 links to each other with second elastic component 62, and between buffer part 63 and spacing seat 61 is located to second elastic component 62, buffer part 63 is configured to along the upper and lower direction with rocking arm 40 relatively to support rocking arm 40, so can realize cleaning brush 20 brush hair automatically regulated after wearing and tearing, guarantee clean effect.

In detail, the gravity of the cleaning brush 20 itself and the elastic force of the first elastic member 50 may apply a downward force to the cleaning brush 20; the elastic force of the second elastic member 62 and the supporting force of the bristles can apply an upward force to the cleaning brush 20; when the cleaning brush 20 works, the downward force and the upward force are balanced, so that the cleaning brush 20 can work stably; and after the bristle wear of the cleaning brush 20 becomes short, the bristle cannot support the cleaning brush 20, and the cleaning brush 20 can be moved down so that the bristle contacts the road surface to re-support the cleaning brush 20, i.e., re-reach the balance of forces, so that the cleaning brush 20 can stably operate.

In addition, the second elastic member 62 may be connected with a buffer member 63, and when the rotating arm 40 presses down on the second elastic member 62, the buffer member 63 may be used to separate the second elastic member 62 from the rotating arm 40, so as to avoid structural wear, and the buffer member 63 has a buffer effect, and may absorb vibration to a certain extent, so as to eliminate abnormal sound.

In combination with the foregoing embodiment, the second elastic member 62 has a predetermined state at a predetermined position, and when the rotating arm 40 presses down the second elastic member 62 to the predetermined state, the limiting seat 61, the second elastic member 62 and the buffering member 63 can cooperate with the limiting rotating arm 40 to press down, so that the rotating arm 40 cannot move downward, so as to ensure that the rotating arm 40 is spaced from the road surface by a predetermined distance, and avoid abrasion of the rotating arm 40.

Second, in some specific examples, the cushioning member 63 may be a rubber head bolt; the rubber head bolt is a specially designed bolt, and the head of the bolt is covered with rubber materials. Rubber head bolts are typically composed of a metal screw and a rubber head. The rubber head may provide some cushioning effect to reduce vibration and shock of the swivel arm 40. In other specific examples, the cushioning member 63 may be a pad that may be disposed on the second resilient member 62, and the pad may be positioned between the second resilient member 62 and the second resilient member 40 when the rotating arm 40 is pressed down on the second resilient member 62 to provide cushioning to avoid the second resilient member 62 from making rigid contact with the rotating arm 40, resulting in structural damage.

Referring to fig. 5, in some embodiments of the present utility model, the left and right sides of the body 10 may be provided with swivel arms 40, the cleaning brush 20 may extend in the left and right directions, and both ends may be hinged with the corresponding swivel arms 40, respectively, to improve the movement stability of the cleaning brush 20.

It will be appreciated that the cleaning brush 20 extends in the left-right direction, and under the action of gravity, the cleaning brush 20 may have a bending moment, so that the cleaning brush 20 is bent and deformed, thereby causing fatigue damage to the cleaning brush 20, and therefore, the two ends of the cleaning brush 20 in the left-right direction may be respectively connected with the rotating arms 40, so as to reduce damage to the cleaning brush 20, and the two ends of the cleaning brush 20 may be respectively hinged with the corresponding rotating arms 40, and during operation, the cleaning brush 20 may rotate relative to the rotating arms 40 to clean the road surface. Of course, in combination with the foregoing embodiment, the rotating arms 40 at the two ends of the cleaning brush 20 can limit the cleaning brush 20, so as to avoid the cleaning brush 20 from falling out of the sweeper 100, and ensure the stability of the operation.

Referring to fig. 5, in some embodiments of the present utility model, the cleaning brush 20 is rotatable about a predetermined axis to sweep a road surface, and the predetermined axis extends in a left-right direction; the left side of the machine body 10 can be provided with a lifting mechanism 30 and is in transmission connection with the left end of the cleaning brush 20, the right side of the machine body 10 can be provided with the lifting mechanism 30 and is in transmission connection with the right end of the cleaning brush 20, and in this way, the lifting stability of the cleaning brush 20 can be improved.

Wherein, the left and right sides of the machine body 10 are respectively provided with a lifting mechanism 30, and the lifting mechanisms 30 at the two sides are respectively connected with the left and right ends of the cleaning brush 20 in a transmission way; when the cleaning brush 20 is driven to ascend, the lifting mechanisms 30 on the left side and the right side can be synchronously started to apply a pulling force to the left end and the right end of the cleaning brush 20, so that the cleaning brush 20 is lifted, the cleaning brush 20 can be uniformly stressed, and bending fracture caused by uneven stress of the cleaning brush 20 is avoided.

In addition, in some specific examples, the cleaning brush 20 may have a first rotating arm 40 hinged to a left end thereof and a second rotating arm 40 hinged to a right end thereof, the elevating mechanism 30 may include a first elevating mechanism 30 and a second elevating mechanism 30, the first elevating mechanism 30 may be hinged to the first rotating arm 40, and the second elevating mechanism 30 may be hinged to the second rotating arm 40 to synchronously drive the cleaning brush 20 to be elevated, thereby improving stability.

Referring to fig. 1 to 5, in some specific examples of the present utility model, the sweeper 100 may include a driving member 32, a chain 31, a sprocket 33, a first elastic member 50, a track rod, a rotating arm 40, a buffering member 63, a second elastic member 62, a stopper 61, and a cleaning brush 20.

The sweeper 100 may include a lifting mechanism 30, where the lifting mechanism 30 may include at least a part of the foregoing structure, and specifically, the lifting mechanism 30 may adopt a scheme that a driving member 32 pulls a chain 31, so as to drive the cleaning brush 20 to rotate along with the rotating arm 40 to lift. The first elastic member 50 is provided on the left side of the tie rod, and the cushion member 63 having the second elastic member 62 is provided on the stopper 61.

Referring to fig. 1 and 2, the cleaning brush 20 is shown to be lifted, i.e. the driving member 32 pulls the chain 31, so as to drive the cleaning brush 20 to rotate along with the rotating arm 40 to lift; in the process, the vibration generated by the road sweeper 100 can be absorbed by the chain 31 to eliminate abnormal sound; and the lifting mechanism 30 adopts a chain transmission mode, so that the driving piece 32 is arranged at a high position, sediment and water vapor splashed are isolated, and the phenomenon that the driving piece 32 is stuck and corroded inside so as to burn is avoided.

With reference to fig. 2 and 4, it can be seen that after the bristles wear, the cleaning brush 20 automatically adjusts to engage the floor; specifically, when the cleaning brush 20 is worn during operation, the cleaning brush 20 overcomes the action force of the first elastic member 50 and the second elastic member 62, automatically contacts the road surface downwards, and balances the forces of the first elastic member 50 and the second elastic member 62 when the bristles contact the road surface, so as to stably rotate. According to the foregoing, the following technical effects may be achieved: the vibration generated during the rotation operation of the cleaning brush 20 is eliminated or improved by the influence of the first elastic member 50 and the buffer member 63 with the second elastic member 62, so that the noise during the operation is further reduced; the self-adjustment function of the ground pasting after the cleaning brush 20 is worn is realized, the service efficiency is improved, and the maintenance cost is reduced.

The utility model also solves the problems of abnormal sound of the mechanism of the cleaning brush 20, easy damage of the driving piece 32 and frequent adjustment of the height of the cleaning brush 20 from the ground, improves the use efficiency and reduces the maintenance cost.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A road sweeper, comprising:

A body (10);

A cleaning brush (20), wherein the cleaning brush (20) can be connected with the machine body (10) in a floating manner up and down;

The lifting mechanism (30), the lifting mechanism (30) comprises a chain (31) and a driving piece (32), the chain (31) is in transmission connection with the cleaning brush (20), and the driving piece (32) is connected with the chain (31) so as to drive the cleaning brush (20) to lift;

The chain wheel (33), the chain wheel (33) with organism (10) links to each other, the one end of chain (31) with cleaning brush (20) links to each other, and the other end is walked around sprocket (33) with driving piece (32) links to each other.

2. A road sweeper according to claim 1, characterized in that the sprocket (33) is higher than the connection point of the chain (31) with the cleaning brush (20).

3. A road sweeper according to claim 1, characterized in that the drive member (32) is a linear drive member (32) and is configured to drive the chain (31) in a horizontal direction.

4. A road sweeper according to any of claims 1-3, characterized in that it further comprises:

And the rotating arm (40) is respectively connected with the machine body (10) and the cleaning brush (20), and the rotating arm (40) can rotate relative to the machine body (10) so as to lift the cleaning brush (20).

5. The road sweeper according to claim 4, characterized in that said chain (31) is connected to said swivel arm (40) for driving connection to said cleaning brush (20), and in that the connection point of said chain (31) to said swivel arm (40) is closer to one end of said swivel arm (40) to which said cleaning brush (20) is connected than to the rotation axis of the swivel arm (40) to the machine body (10).

6. The road sweeper of claim 4, further comprising:

And a first elastic member (50), wherein the first elastic member (50) is connected with the rotating arm (40) and the machine body (10) respectively, and is configured to apply an elastic force to the rotating arm (40) to reduce the height of the cleaning brush (20).

7. The road sweeper of claim 4, further comprising:

And a support member (60), wherein the support member (60) is connected to the body (10) and is positioned at the lower side of the swivel arm (40) to support the swivel arm (40).

8. The road sweeper according to claim 7, characterized in that said support (60) comprises:

The limiting seat (61) is connected with the machine body (10);

The second elastic piece (62), the said second elastic piece (62) couples to said limit seat (61);

The buffer component (63), the buffer component (63) with second elastic component (62) links to each other, just second elastic component (62) are located buffer component (63) with spacing seat (61), buffer component (63) configuration is as with rocking arm (40) are along upper and lower direction relatively, in order to support rocking arm (40).

9. Road sweeper according to claim 4, characterized in that the machine body (10) is provided with the swivel arms (40) on the left and right sides, the cleaning brush (20) extending in the left-right direction and being hinged at both ends to the respective swivel arms (40).

10. The road sweeper according to claim 1, characterized in that the cleaning brush (20) is rotatable about a predetermined axis and the predetermined axis extends in a left-right direction, the left side of the machine body (10) is provided with the lifting mechanism (30) and is drivingly connected to the left end of the cleaning brush (20), and the right side of the machine body (10) is provided with the lifting mechanism (30) and is drivingly connected to the right end of the cleaning brush (20).