CN212835157U

CN212835157U - Self-adaptive road surface sweeping system

Info

Publication number: CN212835157U
Application number: CN202020953102.6U
Authority: CN
Inventors: 陈建设; 张沛; 关晋凯; 张喆; 郭海乐; 刘世亮; 王巍; 魏茂亚; 刘红太; 张增
Original assignee: Zhengzhou Yutong Heavy Industry Co Ltd
Current assignee: Zhengzhou Yutong Heavy Industry Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-30
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a self-adaptive pavement sweeping system which can satisfy the requirement that the sweeping operation process can automatically adapt to the change of a pavement to keep a stable ground contact state, can lock a sweeping brush after lifting and resetting the sweeping brush and prevent the sweeping brush from falling when a gas circuit is leaked, and comprises a connecting rod rotatably arranged on a vehicle body, wherein the other end of the connecting rod is connected with a sweeping disc, a lifting cylinder is hinged between the vehicle body and the connecting rod, and the sweeping disc can ascend when an air source or atmosphere and the air source can be selected at one end of the lifting cylinder; the other end of the lifting cylinder is communicated with the atmosphere, and the sweeping disc descends by means of self weight. One end of the lifting cylinder is connected with an air outlet of the shuttle valve, one of two air inlets of the shuttle valve is connected with the first electromagnetic valve, and the other air inlet of the shuttle valve is connected with the pressure regulating valve; the first electromagnetic valve and the pressure regulating valve are both connected with an air source; the other end of the lifting cylinder is connected with the atmosphere. The utility model discloses the brush hair contacts to earth deflection and contacts to earth pressure unchangeable, remains throughout in the operation with the stable state of contacting to earth on ground.

Description

Self-adaptive road surface sweeping system

Technical Field

The utility model belongs to the motor sweeper field, concretely relates to self-adaptation road surface brush system.

Background

With the continuous improvement of the mechanization degree of urban road cleaning operation, various cleaning vehicles are continuously appeared on urban streets, and the cleaning vehicle is a cleaning special vehicle with the most common applicability to all sanitation vehicles, and comprises a sweeping machine and a washing and sweeping vehicle. The sweeper has sweeping, sucking and washing functions, is widely applied to cleaning operations of urban main roads, public communities, squares and the like, and is also a type of sanitation vehicle with the highest industrial market percentage. Domestic current product mainly cleans the gathering through the disk type brush of installing in the vehicle both sides to rubbish, and the brush mechanism is the key operation device of motor sweeper, directly influences operation effect and efficiency, and the structural style of brush mechanism designs according to hydraulic drive mostly. The incompressibility of hydraulic pressure makes the sweeping state unable to be adjusted automatically during the sweeping operation process unless various limit devices or sensors are added, for example, obstacle avoidance devices such as a road sweeper collision avoidance sweeping mechanism disclosed in patent CN110952487A and a structure disclosed by the road sweeper are added. However, the realization of the sweeping for avoiding the barrier inevitably increases the complexity of the mechanism. In addition, the hydraulic pressure is greatly influenced by the temperature, the control system has high cost, and the hydraulic pressure cannot be comparable to pneumatic drive. The dead weight of the mechanism whereabouts that the system of seldom considering to reveal causes is at present brushed the mechanism, if the brush silk presses subaerial for a long time, the deformation that causes will unable the recovery, influences the effect of cleaning or directly scrap.

The contact state of the sweeper to the ground directly influences the operation effect, and in order to ensure that the sweeper can well sweep the road surface, the sweeper needs to be always in stable contact with the road surface in the sweeping operation process. The sweeper is the largest daily loss part, is continuously worn along with daily sweeping operation, and in addition, the road surface conditions are complicated and changeable, and the contact state of the sweeper and the ground is influenced. The contact depth of the sweeper and the ground is required to be adjusted by an operator according to the change of the contact state, the maintenance workload is large, the working efficiency is directly influenced, and the sweeper cannot be adjusted in real time in operation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a satisfy the change on the automatic adaptation road surface of brush operation process stable state that contacts to earth, can rise the brush again and reset the back to its locking, the self-adaptation road surface brush system of brush whereabouts when preventing that the gas circuit from revealing.

The purpose of the utility model is realized with the following mode: a self-adaptive road surface sweeping system comprises a connecting rod rotatably arranged on a vehicle body, wherein the other end of the connecting rod is connected with a sweeping disc, a lifting cylinder is hinged between the vehicle body and the connecting rod, and the sweeping disc ascends when one end of the lifting cylinder can select an air supply or atmosphere and an air supply; the other end of the lifting cylinder is communicated with the atmosphere, and the sweeping disc descends by means of self weight.

One end of the lifting cylinder is connected with an air outlet of the shuttle valve, one of two air inlets of the shuttle valve is connected with the first electromagnetic valve, and the other air inlet of the shuttle valve is connected with the pressure regulating valve; the first electromagnetic valve and the pressure regulating valve are both connected with an air source; the other end of the lifting cylinder is connected with the atmosphere.

The lifting hook is driven by a one-way cylinder arranged on the vehicle body to rotate up and down so as to hook the connecting rod or release the connecting rod; one end of the one-way cylinder can be selectively communicated with an air source or atmosphere through a second electromagnetic valve, and the other end of the one-way cylinder is automatically pushed out; when the one-way cylinder is communicated with the air source, the lifting hook releases the connecting rod.

The first solenoid valve is a two-position three-way solenoid valve or a two-position five-way solenoid valve.

The second electromagnetic valve is a two-position three-way electromagnetic valve or a two-position five-way electromagnetic valve.

The utility model has the advantages that: promote the connection air supply or the atmosphere that the solenoid valve selected in this patent lifting cylinder one end of brush, the other end lug connection atmosphere. In a working state, the lifting cylinder is communicated with the atmosphere, and the sweeping disc descends to contact the ground due to gravity; when the sweeper encounters an obstacle, the sweeper deforms, the stress of the lifting cylinder is shortened, and the sweeper is lifted; when the sweeper encounters the concave part, the gravity enables the sweeper to descend and simultaneously drives the lifting cylinder to extend. The overall deformation of the sweeper brush is basically kept unchanged in the whole process. Furthermore, a pressure regulating valve is arranged in the air path, the internal pressure of a lifting cylinder of the sweeper is regulated through the pressure regulating valve, the lifting cylinder is balanced with the self weight of the sweeper and the contact pressure of the brush hair, when the height of the road changes, the stroke of the lifting cylinder is changed under the action of the combination of the pressure regulating valve, the sweeper is lifted or lowered, finally the contact deformation and the contact pressure of the brush hair are unchanged, and the stable contact state with the ground is always kept in operation.

Drawings

FIG. 1 is a schematic view of a sweeper mechanism.

Fig. 2 is a plan view of the wiper mechanism in an extended state.

Fig. 3 is a side view of the sweeper mechanism in a lowered state.

Fig. 4 is a schematic sectional view of the sweeper mechanism (with the sweeper base and link in the middle).

Fig. 5 is a schematic diagram of the gas path control.

Wherein, 1 is a sweeping brush bracket, 2 is a third rotating shaft, 3 is a sweeping brush base, 4 is a one-way cylinder, 5 is a lifting cylinder, 6 is an adjusting rod, 7 is a sweeping disc mounting seat, 8 is a connecting rod, 9 is a lifting hook, 10 is a first rotating shaft, 11 is a second rotating shaft, 12 is an extending cylinder, 13 is a first electromagnetic valve, 14 is a shuttle valve, 15 is a pressure regulating valve, 16 is a second electromagnetic valve, 17 is an air source, 18 is a horizontal shaft, and 19 is an extending end.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments. It should be noted that "connected" and words used in this application to express "connected," such as "connected," "connected," and the like, include both direct connection of one element to another element and connection of one element to another element through another element.

Relational terms such as first, second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

As shown in fig. 1-5, a self-adaptive road surface sweeping system comprises a connecting rod 8 rotatably arranged on a vehicle body, wherein the other end of the connecting rod 8 is connected with a sweeping disc assembly, a lifting cylinder 5 is hinged between the vehicle body and the connecting rod 8, and the sweeping disc ascends when one end of the lifting cylinder 5 can be used for selecting an air supply source 17 or an atmospheric air supply and an air supply; the other end of the lifting cylinder 5 is communicated with the atmosphere, and the sweeping disc descends by means of self weight. During the process of sweeping the ground, various obstacles and uneven road surface height can be met. The traditional sweeping disc lifting mechanism mostly adopts hydraulic pressure, hydraulic drive is not compressible, and a special obstacle avoidance mechanism is needed. And adopt and promote cylinder 5 structure, because gas can compress, can adapt to road surface height to a certain extent. But for large obstacles, compression of the gas in a double-acting cylinder by means of a conventional connection alone is not sufficient. In this patent, the connection air supply 17 or the atmosphere of lift cylinder 5 one end selection, the other end lug connection atmosphere. In a working state, the lifting cylinder 5 is communicated with the atmosphere, and the sweeping disc descends to contact the ground due to gravity; when the sweeper encounters an obstacle, the sweeper deforms, the stress of the lifting cylinder 5 is shortened, and the sweeper is lifted; when the sweeper encounters the concave part, the gravity enables the sweeper to descend and simultaneously drives the lifting cylinder to extend. The overall deformation of the sweeper brush is basically kept unchanged in the whole process.

A rotary lifting hook 9 is arranged on the vehicle body, and the lifting hook 9 is driven by a one-way cylinder 5 arranged on the vehicle body to rotate up and down so as to hook the connecting rod 9 or release the connecting rod 8; the end of the lifting cylinder 5 is connected with an air outlet of a shuttle valve 14, two air inlets of the shuttle valve 14 are connected with a first electromagnetic valve 13 and a pressure regulating valve 15, and the first electromagnetic valve 13 and the pressure regulating valve 15 are both connected with an air source. Wherein the first electromagnetic valve 13 can be communicated with the atmosphere; the other end of the lifting cylinder 5 is connected with the atmosphere. When the gravity of the brush disc is larger, the brush disc is contacted with the ground only by the dead weight, the deformation of the sweeping brush is larger, and the sweeping brush is easy to wear. The pressure between the sweeper and the ground cannot be adjusted, and the pressure between the sweeper and the ground is not stable enough when the road surface is not flat. The air path of the air conditioner is also provided with a pressure regulating valve 15 and a shuttle valve 14, and the shuttle valve 14 is provided with two air inlets and one air outlet. When one air inlet is ventilated, the air inlet is equivalent to a one-way valve; when the two air inlets simultaneously feed air, the channel with higher air pressure is opened, and the low-pressure port is closed. The pressure regulating valve 15 can regulate the outlet pressure and keep it constant. When the sweeper brush contacts the ground, the pressure regulating valve 15 keeps specific pressure, the lifting cylinder provides upward pulling force for the sweeper brush, and the pressure between the sweeper brush and the ground is reduced, so that the deformation of the sweeper brush is reduced, and the abrasion is reduced. The lifting cylinder 5 of the sweeper adjusts the internal pressure through the pressure regulating valve 15, the internal pressure is balanced with the self weight of the sweeper and the contact pressure of the brush hair, when the road surface changes, the stroke of the lifting cylinder 5 is changed under the action of the combination of the three, so that the sweeper is lifted or lowered, finally the contact deformation and the contact pressure of the brush hair are unchanged, and the stable contact state with the ground is always kept in operation.

One end of the one-way cylinder 4 can be selectively communicated with an air source 17 or atmosphere through a second electromagnetic valve 16, and the other end of the one-way cylinder 4 is automatically pushed out; when the one-way cylinder 4 is communicated with the air source 17, the lifting hook 9 releases the connecting rod 8. The first solenoid valve 13 is a two-position three-way solenoid valve or a two-position five-way solenoid valve. The second solenoid valve 16 is a two-position three-way solenoid valve or a two-position five-way solenoid valve. In fact, the first electromagnetic valve 13 and the second electromagnetic valve can meet the requirement by adopting a two-position three-way electromagnetic valve, and the two-position five-way electromagnetic valve is common in the market. The gas path of the extending cylinder 12 is the same as that of a common double-acting cylinder, the extending cylinder is connected with a gas source in a two-way mode, and when one end of the extending cylinder is connected with the gas source, the other end of the extending cylinder is communicated with the atmosphere. The specific principles are well within the art and will not be described in detail herein.

The specific structure of the brushing system is as follows: the sweeper support is rotatably provided with a connecting rod 8, one end of the connecting rod 8 is hinged with the sweeper support 1, and the other end of the connecting rod 8 is connected with the sweeper assembly. The connecting rod 8 is driven by a pneumatic or hydraulic driving mechanism arranged on the sweeper bracket 1 to rotate up and down; the sweeper bracket 1 is rotatably provided with a lifting hook 9, and the lifting hook 9 rotates to switch between hooking the connecting rod 8 and releasing the connecting rod 8; the lifting hook 9 is driven to rotate by a lifting hook driving mechanism arranged on the sweeping brush bracket 1; the hook driving mechanism is not hydraulically driven and is not pneumatic or is a one-way cylinder 4; one end of the lifting hook driving mechanism is hinged with the sweeping brush support 1, the other end of the lifting hook driving mechanism is hinged with the lifting hook 9, and the lifting hook driving mechanism stretches out and draws back to enable the lifting hook 9 to rotate. The one-way cylinder 4 is also called a single-acting cylinder, as opposed to a double-acting cylinder. Only one cavity of the unidirectional cylinder 4 can input compressed air to realize one-way movement. The piston rod can only push back by means of external force; typically by means of spring force, diaphragm tension, gravity, etc. The hydraulic or pneumatic pushing device such as a common double-acting cylinder or hydraulic cylinder or oil cylinder can leak after being placed for a long time, so that one end of the push rod retracts. If the lifting hook is used as a lifting hook driving mechanism, the lifting hook cannot hook the connecting rod tightly. Even if gas in the one-way cylinder 4 leaks, the connecting rod 8 is hooked tightly due to the action of the internal spring of the one-way cylinder. The lifting hook driving mechanism which is not pushed by hydraulic pressure or air pressure cannot be influenced by air leakage after being placed for a long time, and an electric push rod or an electromagnetic push rod and the like can be adopted. Here, the sweeper stand 1 is hinged to one end of the connecting rod 8, and includes the sweeper stand 1 directly hinged to one end of the connecting rod 8, and the sweeper stand 1 indirectly hinged to the connecting rod 8 by means of a part or member mounted on the sweeper stand 1. The lifting hook 9 arranged on the sweeper bracket 1 comprises the condition that the lifting hook 9 is directly or indirectly arranged on the sweeper bracket 1. The telescopic hook driving mechanism refers to that the overall length of the hook driving mechanism is changed and is not only a common telescopic mechanism. The hook driving mechanism is arranged on the sweeper bracket 1 and comprises the condition of direct or indirect arrangement.

The sweeper support 1 is provided with a sweeper base 3, one end of a lifting cylinder 5 is hinged on the sweeper base 3, the other end of the lifting cylinder 5 is hinged with a connecting rod 8, and the lifting cylinder 5 is contracted to drive the connecting rod 8 to rotate up and down; the lifting hook 9 is fixed on a first rotating shaft 10, and the first rotating shaft 10 is rotatably arranged on the sweeper base 3; an extending end 19 is fixedly arranged on the first rotating shaft 10, one end of the lifting hook driving mechanism is hinged on the sweeping brush base 3, and the other end of the lifting hook driving mechanism is hinged with the extending end 19 on the first rotating shaft 10. The structure adopts hydraulic drive mechanism as the power of lifting link 8 more before, and the cylinder drive is adopted in the rising and the decline of brush mechanism in this patent, and the vertical atress of brush changes when the road surface is uneven, and it is compressible to promote the cylinder, realizes the follow-up on brush and ground. The hook driving mechanism may be an electromagnetic push rod. The electromagnetic push rod is not affected by leakage, and the function is stable.

The connecting rod 8 can be provided with a transverse shaft 18, and the hook 9 is locked or unlocked with the connecting rod 8 through the transverse shaft 18. In a specific embodiment, a groove may be formed in the sweeper base 3, and the hook driving mechanism is disposed in the groove in the sweeper base 3, for example, by using the unidirectional cylinder 4. A transverse shaft 18 is arranged in the connecting rod 8, and the length direction of the transverse shaft 18 is vertical to the length direction of the connecting rod 8. As shown in fig. 4, when the air is not ventilated, the unidirectional cylinder 4 is in an extended state due to the action of the internal spring, the first rotating shaft 10 rotates anticlockwise, the hook 9 rotates upwards to hook the cross shaft 18, so that the connecting rod 8 is in a locked state, the connecting rod 8 is prevented from driving the sweeper to fall, and the locked state of the unidirectional cylinder 4 in the embodiment is not affected by air leakage. When the position of the connecting rod 8 is not required to be locked, the one-way cylinder is ventilated, the spring is pressed back by air, the one-way cylinder is in a retraction state, and the lifting hook 9 is loosened. Of course, if the hook driving mechanism is an electromagnetic push rod, then the electrification can control the extension and the contraction of the push rod, and the telescopic effect can not be lost along with the time. The effect of this patent can all be realized as long as remaining non-pneumatic or non-hydraulic lifting hook actuating mechanism can realize flexible function, can select according to actual needs.

One end of a connecting rod 8 is hinged to the sweeping base 3 through a second rotating shaft 11, the other end of the connecting rod 8 is hinged to a sweeping disc mounting seat 7 on the sweeping disc assembly, and a telescopic adjusting rod 6 is further hinged between the sweeping base 3 and the sweeping disc mounting seat 7. The adjusting rod 6, the sweeping disc mounting seat 7, the connecting rod 8 and the sweeping brush base 3 form a quadrilateral structure. In a common structure, the sweeping disk assembly further comprises a sweeping disk driving mechanism for driving the sweeping disk to rotate, which is not shown in the patent drawing, and the part belongs to the prior art, is not greatly related to the invention point of the invention, and is not described in detail. The connecting rod 8 is driven by the lifting cylinder 5 to drive the sweeping disc to lift, the angle of the sweeping disc mounting seat 7 is changed by adjusting the length of the rod 6, and the requirements of the sweeping brush on different cleaning angles of the ground are met. The adjustment lever 6 may be a conventional telescopic mechanism.

The sweeper base 3 is rotatably arranged on the sweeper support 1 through the third rotating shaft 2, and the extending cylinder 12 is hinged between the sweeper base 3 and the sweeper support 1. The extending cylinder 12 stretches and retracts to drive the sweeper base 3 and the sweeping disc on the sweeper base to retract into the vehicle body or extend out of the vehicle body. The former structure adopts hydraulic drive mechanism as the power of overhanging mechanism more, and this patent adopts also overhanging cylinder 12, and when the operation was gone forward and is met the obstacle and block after the brush pendulum out, the brush receives the extrusion and makes overhanging cylinder compression, and the brush mechanism can be swung back and avoid the obstacle. The sweeper mechanism can meet the requirements of extending and retracting, ascending and descending of the sweeper, and can lock the sweeper after the sweeper is lifted and reset to prevent the sweeper from falling; and all moving parts are driven by cylinders, so that the control system is low in cost and clean in pneumatic energy. In addition, the stress of the brush wires is changed in real time under the influence of the road surface during sweeping operation, and due to the fact that the gas compressibility is good, the stroke of the air cylinder can be adjusted and adapted in a follow-up mode, and the sweeping obstacle avoidance and the adaptation to the road surface state can be achieved without adding other auxiliary parts.

During specific implementation, the sweeping mechanism is arranged on two sides of the sweeper through the sweeping support 1, the initial state is as shown in figure 1, and the sweeping brush is retracted and lifted. The operation process is as follows: when the sweeper does not work, the sweeping disc is not contacted with the ground, and at the moment, the one-way cylinder 4 is in an extension state to lock the connecting rod 2 to prevent the connecting rod from falling. When the ground needs to be cleaned, firstly, the outward extending cylinder 12 pushes the sweeper base 3 to rotate around the third rotating shaft 2, and the sweeping disc assembly is swung outwards, as shown in fig. 2; then the one-way cylinder 4 is ventilated and shortened to drive the lifting hook 9 to rotate around the first rotating shaft 10 to be opened; then the lifting cylinder 5 drives the connecting rod 8 to rotate around the second rotating shaft 11 to drive the sweeping disc to fall down, as shown in fig. 2; at the moment, each moving part reaches the operation position, and the sweeping disc can be driven by the sweeping disc motor to rotate for cleaning. After the operation is finished, the lifting cylinder 5 drives the connecting rod 8 to ascend; after the lifting in place, the one-way cylinder 4 drives the lifting hook 9 to lock the connecting rod 8; finally, the outward extending cylinder 12 drives the sweeper base 3 to retract so as to reset the sweeper, and an operation cycle is completed at the moment.

In the advancing process of the sweeping mechanism, as shown in fig. 2, when an obstacle exists on the side edge of the sweeping mechanism, the sweeping disk is impacted, the sweeping disk is extruded by force to extend the cylinder 12 to retract, the sweeping mechanism swings towards the direction in the vehicle, and the sweeping disk passes along the edge of the obstacle to avoid the front impact with the obstacle; when the sweeper moves away from the obstacle, the high-pressure gas in the extending cylinder 12 enables the extending cylinder to extend continuously, and the sweeper returns to the outward swinging state.

When the road surface is uneven, as shown in fig. 3, the sweeping disc upwards compresses the lifting cylinder 5 to enable the sweeping disc to move upwards, and damage caused by excessive extrusion of the sweeping disc is avoided; when the vehicle is driven away from the obstacle, the lifting cylinder 5 drives the sweeping disc to fall and reset.

In the sweeping brush recovery and falling process, the gas circuit control process is as follows:

the brush is lifted and retracted: when the first electromagnetic valve 13 is electrified, the air source 17 pressurizes and conducts the shuttle valve 14 through the valve, so that the lifting cylinder 5 is ventilated to drive the sweeping brush to lift; after the sweeping brush is lifted and reset, the second electromagnetic valve 16 is electrified, the one-way cylinder 4 is communicated with the atmosphere and extends out, and the lifting hook 9 is driven to lock the connecting rod 8; when the system leaks gas, the one-way cylinder 4 is driven to extend outwards by the spring inside, and the lifting hook 9 always locks the connecting rod 8.

The operation of the falling of the sweeping brush is as follows: the second electromagnetic valve 16 is powered off, and the one-way cylinder 4 is communicated with the air source 17 to open the lifting hook 9; then the first electromagnetic valve 13 is cut off, the lifting cylinder 5 is communicated with the atmosphere, and the air source 17 enables the shuttle valve 14 to be communicated and connected with the lifting cylinder 5 through the pressure regulating valve 15. When the pressure of the pressure regulating valve 15 is smaller than the self weight of the sweeper, the sweeper will fall and touch, the sweeping disc is subjected to the lifting force F of the air cylinder, the self weight G of the sweeping disc and the grounding support force P of the bristles, and the sweeping disc is kept balanced by the three forces, so that F = G + P. When the pressure setting of the pressure regulating valve is constant, i.e., F is constant, the wiper ground contact supporting force P will remain constant.

Self-adaptive road surface adjustment of the ground contact state of the sweeping brush: the pressure of the pressure regulating valve 15 is set according to the ground contact state of the sweeper and the ground, when the sweeper encounters a road surface depression in the sweeping process, the deformation of the sweeper brush wire is reduced, the supporting force P of the road surface is reduced, and the sweeper falls down until the ground contact pressure of the sweeper brush is increased to be balanced by the mechanism; on the contrary, when the sweeper meets a convex road surface, the deformation of the sweeper brush wire is increased, the supporting force P of the road surface is increased, and the sweeper brush is lifted until the ground contact pressure is reduced to be balanced by the mechanism. The pressure regulating valve 15 regulates the pressure to be constant, so that the deformation amount of the sweeping brush is kept consistent. Therefore, when the sweeper is worn and the road surface condition changes, the height of the sweeper is adjusted in real time, so that the contact state of the sweeper and the ground is kept unchanged. Set up the brush on sweeping the dish in this patent.

It should be noted that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper" and "lower," "vertical," "horizontal," "top," "bottom," "inner" and "outer" used in the description refer to the orientation or positional relationship as shown in the drawings, merely for the purpose of slogan to describe the patent, and do not indicate or imply that the referenced device or element must have a particular orientation, configuration, and operation in a particular orientation. Therefore, should not be construed as limiting the scope of the invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.

Claims

1. The utility model provides a self-adaptation road surface brush system, is including rotating the connecting rod that sets up on the automobile body, and the sweeping disk is connected to the connecting rod other end, its characterized in that: a lifting cylinder is hinged between the vehicle body and the connecting rod, and a sweeping disc ascends when one end of the lifting cylinder can select an air source or an atmosphere or an air source; the other end of the lifting cylinder is communicated with the atmosphere, and the sweeping disc descends by means of self weight.

2. The adaptive pavement sweeping system of claim 1, wherein: one end of the lifting cylinder is connected with an air outlet of the shuttle valve, one of two air inlets of the shuttle valve is connected with the first electromagnetic valve, and the other air inlet of the shuttle valve is connected with the pressure regulating valve; the first electromagnetic valve and the pressure regulating valve are both connected with an air source; the other end of the lifting cylinder is connected with the atmosphere.

3. The adaptive pavement sweeping system of claim 1, wherein: the lifting hook is driven by a one-way cylinder arranged on the vehicle body to rotate up and down so as to hook the connecting rod or release the connecting rod; one end of the one-way cylinder can be selectively communicated with an air source or atmosphere through a second electromagnetic valve, and the other end of the one-way cylinder is automatically pushed out; when the one-way cylinder is communicated with the air source, the lifting hook releases the connecting rod.

4. The adaptive pavement sweeping system of claim 2, wherein: the first electromagnetic valve is a two-position three-way electromagnetic valve or a two-position five-way electromagnetic valve.

5. The adaptive pavement sweeping system of claim 3, wherein: the second electromagnetic valve is a two-position three-way electromagnetic valve or a two-position five-way electromagnetic valve.