阅读说明：本技术 一种高速公路隧道反光环自清洗装置及其清洗方法 (Self-cleaning device and cleaning method for reflecting ring of expressway tunnel ) 是由 杨艳群 曹京秋 于 2019-12-23 设计创作，主要内容包括：本发明涉及一种高速公路隧道反光环自清洗装置,包括端框架吸盘臂,端框架吸盘臂的内部设有中框架吸盘臂,端框架吸盘臂与中框架吸盘臂上分别设有用以朝上吸附隧道顶壁的上吸盘、分别设有用以朝前或朝后吸附反光环侧壁的下吸盘,端框架吸盘臂与中框架吸盘臂之间经电动机构驱动在隧道宽度方向进行相对移动；中框架吸盘臂在其下吸盘的旁侧设有沿移动方向依次设置的擦拭刷、清洗刷,擦拭刷与清洗刷均经连杆与中框架吸盘臂连接,中框架吸盘臂上设有洗液箱,洗液箱经洗液管连通往清洗刷进行喷液,洗液箱内部设有喷液泵。该高速公路隧道反光环自清洗装置结构简单,使用时通过该行走机构在隧道顶壁与反光环侧壁的自行走,自行走过程中同时擦洗反光环。(The invention relates to a self-cleaning device for a reflecting ring of a tunnel of a highway, which comprises an end frame sucker arm, wherein a middle frame sucker arm is arranged inside the end frame sucker arm, an upper sucker for upwards adsorbing the top wall of the tunnel and a lower sucker for forwards or backwards adsorbing the side wall of the reflecting ring are respectively arranged on the end frame sucker arm and the middle frame sucker arm, and the end frame sucker arm and the middle frame sucker arm are driven by an electric mechanism to move relatively in the width direction of the tunnel; the middle frame sucker arm is provided with a wiping brush and a cleaning brush which are sequentially arranged along the moving direction at the side of the lower sucker of the middle frame sucker arm, the wiping brush and the cleaning brush are both connected with the middle frame sucker arm through a connecting rod, the middle frame sucker arm is provided with a lotion box, the lotion box is connected to the cleaning brush through a lotion pipe for spraying, and the lotion box is internally provided with a liquid spraying pump. The self-cleaning device for the reflecting ring of the highway tunnel has a simple structure, and when the self-cleaning device is used, the reflecting ring is cleaned simultaneously in the self-walking process through the self-walking of the walking mechanism on the top wall and the side wall of the reflecting ring of the tunnel.)

1. The utility model provides a highway tunnel reflection of light ring is from belt cleaning device which characterized in that: the tunnel wall structure comprises an end frame sucker arm, a middle frame sucker arm is arranged inside the end frame sucker arm, an upper sucker for upwards adsorbing the top wall of a tunnel and a lower sucker for forwards or backwards adsorbing the side wall of a reflective ring are respectively arranged on the end frame sucker arm and the middle frame sucker arm, and the end frame sucker arm and the middle frame sucker arm are driven by an electric mechanism to move relatively in the width direction of the tunnel;

the middle frame sucker arm is provided with a wiping brush and a cleaning brush which are sequentially arranged along the moving direction at the side of the lower sucker of the middle frame sucker arm, the wiping brush and the cleaning brush are both connected with the middle frame sucker arm through a connecting rod, the middle frame sucker arm is provided with a lotion box, the lotion box is connected to the cleaning brush through a lotion pipe for spraying, and the lotion box is internally provided with a liquid spraying pump.

2. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 1, which is characterized in that: the electric mechanism comprises a main tooth girder fixedly arranged on the end frame sucker arm, the main tooth girder extends along the width direction of the tunnel, a rack is arranged on the lower side surface of the main tooth girder, and wheel grooves are formed in the other three side surfaces of the main tooth girder.

3. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 2, which is characterized in that: the periphery of the main tooth girder is sleeved with a fixed auxiliary frame, the lower side part of the fixed auxiliary frame is provided with a gear meshed with the rack, and the other three sides of the fixed auxiliary frame are provided with press wheels embedded into corresponding wheel grooves for rolling.

4. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 3, which is characterized in that: the lower part of the fixed auxiliary frame is fixedly connected with a fixed main frame, the fixed main frame is provided with a motor with an output shaft connected with a gear, and the fixed main frame is connected with a middle frame sucker arm.

5. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 4, which is characterized in that: the tunnel top wall and the reflective ring are both arc-shaped.

6. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 5, which is characterized in that: the fixed main frame is fixedly provided with a first rotating shaft extending from front to back, the middle part of the suction disc arm of the middle frame is fixedly provided with a second rotating shaft extending from front to back, and the first rotating shaft is coaxially inserted into the second rotating shaft to rotate relatively.

7. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 6, which is characterized in that: a torsion spring is coaxially sleeved on the outer peripheries of the first rotating shaft and the second rotating shaft, one end of the torsion spring is fixed with the first rotating shaft, and the other end of the torsion spring is fixed with the second rotating shaft; the upper sucker and the lower sucker are both connected with a vacuum generator, the sucker arm of the end frame is provided with a motor touch switch rod with equal length, the sucker touch switch rod of the end frame and the sucker touch switch rod of the middle frame, the motor touch switch rod, the sucker touch switch rod of the end frame and the sucker touch switch rod of the middle frame extend along the width direction of the tunnel, both ends are used for touching the sucker arm of the end frame when the sucker arm of the end frame and the sucker arm of the middle frame move relatively, the sucker arm of the end frame is provided with a contact for touching and conducting with the motor touch switch rod, the sucker touch switch rod of the end frame and both ends of the sucker touch switch rod of the middle frame, the sucker arm of the middle frame is provided with a controller, and the controller is both connected with the motor, the vacuum generator, the motor touch switch rod, the sucker touch switch rod of the end frame, the sucker touch switch rod of the middle frame, the contact and the liquid spraying pump are electrically connected.

8. The self-cleaning device for the reflecting ring of the highway tunnel according to claim 1, which is characterized in that: the rear ends of the connecting rods of the cleaning brush and the cleaning brush are fixedly arranged on the same pressing plate, a spring mounting cavity is fixedly arranged on the side of the pressing plate of the suction disc arm of the middle frame, the cavity opening of the spring mounting cavity faces the pressing plate, and the pressing plate is embedded into the spring mounting cavity and is connected with the inner cavity bottom of the spring mounting cavity through a spring; the shape of the pressure plate is matched with that of the spring installation cavity, so that the pressure plate is compressed in the spring installation cavity and is guided forwards and backwards.

9. A cleaning method of the self-cleaning device for the reflecting ring of the highway tunnel according to any one of claims 1 to 8, which is characterized by comprising the following steps: during the use, the sucking disc of end frame sucking disc arm produces the adsorption affinity not simultaneously with the sucking disc of well frame sucking disc arm, promptly: when the sucker of the end frame sucker arm is used for sucking, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, and a wiping brush and a cleaning brush which are tightly attached to the reflective annular wall are used for wiping when the middle frame sucker arm moves; when the middle frame sucker arm moves to a limit position, the sucker of the middle frame sucker arm is sucked and stops scrubbing, the sucker of the end frame sucker arm does not work, and the lower end frame sucker arm is driven by the electric mechanism to move towards the middle frame sucker arm in the same direction; when the end frame sucker arm moves to the limiting position towards the middle frame sucker arm in the same direction, the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm continues to move relative to the end frame sucker arm under the driving of the electric mechanism, the wiping brush and the cleaning brush which are tightly attached to the reflective annular wall continue to wipe when moving, and self-walking wiping is achieved in a reciprocating mode.

10. The cleaning method of the self-cleaning device for the reflecting ring of the highway tunnel according to claim 9, which is characterized in that: in the above steps: (1) during adsorption, the upper sucker is adsorbed on the top wall of the tunnel, and the lower sucker is adsorbed on the side wall of the reflective ring; (2) when the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, if the motor rotates forwards in the process that the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, when the middle frame sucker arm moves to a limiting position, the sucker of the middle frame sucker arm adsorbs, the sucker of the end frame sucker arm does not work, and the motor rotates backwards when the electric mechanism drives the lower end frame sucker arm to move towards the middle frame sucker arm in the same direction; (3) when the middle frame sucker arm moves to a limit position, one end of the motor touch switch rod, the end frame sucker touch switch rod and the middle frame sucker touch switch rod touches a contact on the end frame sucker arm at the same side, so that the motor is changed from positive rotation to negative rotation, the middle frame sucker is changed into adsorption, and the end frame sucker is changed into non-adsorption; when the end frame sucker arms move to the limiting positions in the same direction towards the middle frame sucker arms, the motor touches the switch rod, the suckers of the end frames touch the switch rod, the other end of the sucker of the middle frame touches the contact on the other end frame sucker arm at the same side, so that the motor changes from reverse rotation to forward rotation, the suckers of the middle frame do not adsorb, the suckers of the end frames adsorb, and the steps are repeated in a circulating manner; (4) when the shape of tunnel roof and reflection of light ring is the arc, realize autogyration through setting up of first pivot, torsion spring, second pivot, specifically do: when the end frame sucker arm is not moved and the middle frame sucker arm moves, the sucker of the middle frame sucker arm is contacted with the top wall of the tunnel in the moving process to force the middle frame sucker arm to rotate along the first rotating shaft and the second rotating shaft to adapt to the radian change of the tunnel wall, and the torsion spring is used for storing the torsion force; when the middle frame sucker arm is fixed, the torsion spring is reset, and the end frame sucker arm is twisted by the torsion spring in the moving process, so that the end frame sucker arm is twisted to the position which is in same swing with the middle frame sucker arm, and the radian change of the tunnel wall is adapted, and the operation is repeated in such a way.

Technical Field

The invention relates to a self-cleaning device for a reflecting ring of a highway tunnel and a cleaning method thereof.

Background

At present, with the development of highway construction in China, the number and the length of tunnels are continuously increased, and reflective annular plates in the tunnels are polluted under the influence of various factors such as automobile exhaust and the like, so that the effect of the reflective annular plates is greatly reduced.

At the present stage, the cleaning work of the reflective ring plate adopts an original manual method for cleaning, and has great influence on traffic safety and consumption of manpower and material resources.

Therefore, a self-cleaning device is needed to be designed for automatically walking and cleaning the reflective ring.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a self-cleaning device for a reflecting ring of a highway tunnel and a cleaning method thereof, which are simple in structure, convenient and efficient.

In order to solve the technical problems, the technical scheme of the invention is as follows: a self-cleaning device for a reflecting ring of a highway tunnel comprises an end frame sucker arm, a middle frame sucker arm is arranged inside the end frame sucker arm, an upper sucker for upwards adsorbing the top wall of the tunnel and a lower sucker for forwards or backwards adsorbing the side wall of the reflecting ring are respectively arranged on the end frame sucker arm and the middle frame sucker arm, and the end frame sucker arm and the middle frame sucker arm are driven by an electric mechanism to move relatively in the width direction of the tunnel;

the middle frame sucker arm is provided with a wiping brush and a cleaning brush which are sequentially arranged along the moving direction at the side of the lower sucker of the middle frame sucker arm, the wiping brush and the cleaning brush are both connected with the middle frame sucker arm through a connecting rod, the middle frame sucker arm is provided with a lotion box, the lotion box is connected to the cleaning brush through a lotion pipe for spraying, and the lotion box is internally provided with a liquid spraying pump.

Preferably, the electric mechanism comprises a main tooth girder fixedly arranged on the end frame sucker arm, the main tooth girder extends along the width direction of the tunnel, the lower side surface of the main tooth girder is provided with a rack, and the other three side surfaces of the main tooth girder are provided with wheel grooves.

Preferably, the periphery of the main tooth girder is sleeved with a fixed auxiliary frame, a gear meshed with the rack is installed on the lower side of the fixed auxiliary frame, and pressing wheels embedded into corresponding wheel grooves for rolling are installed on the other three sides of the fixed auxiliary frame.

Preferably, the lower part of the fixed auxiliary frame is fixedly connected with a fixed main frame, the fixed main frame is provided with a motor with an output shaft connected with a gear, and the fixed main frame is connected with the middle frame sucker arm.

Preferably, the tunnel ceiling and the reflective ring are both arc-shaped.

Preferably, a first rotating shaft extending forwards and backwards is fixedly arranged on the fixing main frame, a second rotating shaft extending forwards and backwards is fixedly arranged in the middle of the middle frame sucker arm, and the first rotating shaft is coaxially inserted into the second rotating shaft to rotate relatively.

Preferably, a torsion spring is coaxially sleeved on the outer peripheries of the first rotating shaft and the second rotating shaft, one end of the torsion spring is fixed with the first rotating shaft, and the other end of the torsion spring is fixed with the second rotating shaft.

Preferably, the upper sucker and the lower sucker are both connected with a vacuum generator, the end frame sucker arm is provided with a motor touch switch rod, a sucker touch switch rod of the end frame and a sucker touch switch rod of the middle frame which are equal in length, the motor touch switch rod, the sucker touch switch rod of the end frame and the sucker touch switch rod of the middle frame extend along the width direction of the tunnel, two ends of the motor touch switch rod and the sucker touch switch rod of the middle frame are used for touching the end frame sucker arm when the end frame sucker arm and the middle frame sucker arm move relatively, the end frame sucker arm is provided with a contact for touching and conducting with the motor touch switch rod, the sucker touch switch rod of the end frame and the sucker touch switch rod of the middle frame, the middle frame sucker arm is provided with a controller, and the controller is respectively connected with the motor, the vacuum generator, the motor touch switch rod, the sucker touch switch rod of the end frame, the sucker touch switch rod of the middle frame, The liquid spraying pump is electrically connected.

Preferably, the rear ends of the connecting rods of the wiping brush and the cleaning brush are fixedly arranged on the same pressing plate, a spring mounting cavity is fixedly arranged on the side of the pressing plate of the middle frame sucker arm, the cavity opening of the spring mounting cavity faces the pressing plate, and the pressing plate is embedded into the spring mounting cavity and is connected with the bottom of the inner cavity of the spring mounting cavity through a spring; the shape of the pressure plate is matched with that of the spring installation cavity, so that the pressure plate is compressed in the spring installation cavity and is guided forwards and backwards.

A cleaning method of a self-cleaning device for a reflecting ring of a highway tunnel comprises the following steps: during the use, the sucking disc of end frame sucking disc arm produces the adsorption affinity not simultaneously with the sucking disc of well frame sucking disc arm, promptly: when the sucker of the end frame sucker arm is used for sucking, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, and a wiping brush and a cleaning brush which are tightly attached to the reflective annular wall are used for wiping when the middle frame sucker arm moves; when the middle frame sucker arm moves to a limit position, the sucker of the middle frame sucker arm is sucked and stops scrubbing, the sucker of the end frame sucker arm does not work, and the lower end frame sucker arm is driven by the electric mechanism to move towards the middle frame sucker arm in the same direction; when the end frame sucker arm moves to the limiting position towards the middle frame sucker arm in the same direction, the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm continues to move relative to the end frame sucker arm under the driving of the electric mechanism, the wiping brush and the cleaning brush which are tightly attached to the reflective annular wall continue to wipe when moving, and self-walking wiping is achieved in a reciprocating mode.

Preferably, in the above step: (1) during adsorption, the upper sucker is adsorbed on the top wall of the tunnel, and the lower sucker is adsorbed on the side wall of the reflective ring; (2) when the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, if the motor rotates forwards in the process that the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, when the middle frame sucker arm moves to a limiting position, the sucker of the middle frame sucker arm adsorbs, the sucker of the end frame sucker arm does not work, and the motor rotates backwards when the electric mechanism drives the lower end frame sucker arm to move towards the middle frame sucker arm in the same direction; (3) when the middle frame sucker arm moves to a limit position, one end of the motor touch switch rod, the end frame sucker touch switch rod and the middle frame sucker touch switch rod touches a contact on the end frame sucker arm at the same side, so that the motor is changed from positive rotation to negative rotation, the middle frame sucker is changed into adsorption, and the end frame sucker is changed into non-adsorption; when the end frame sucker arms move to the limiting positions in the same direction towards the middle frame sucker arms, the motor touches the switch rod, the suckers of the end frames touch the switch rod, the other end of the sucker of the middle frame touches the contact on the other end frame sucker arm at the same side, so that the motor changes from reverse rotation to forward rotation, the suckers of the middle frame do not adsorb, the suckers of the end frames adsorb, and the steps are repeated in a circulating manner; (4) when the shape of tunnel roof and reflection of light ring is the arc, realize autogyration through setting up of first pivot, torsion spring, second pivot, specifically do: when the end frame sucker arm is not moved and the middle frame sucker arm moves, the sucker of the middle frame sucker arm is contacted with the top wall of the tunnel in the moving process to force the middle frame sucker arm to rotate along the first rotating shaft and the second rotating shaft to adapt to the radian change of the tunnel wall, and the torsion spring is used for storing the torsion force; when the middle frame sucker arm is fixed, the torsion spring is reset, and the end frame sucker arm is twisted by the torsion spring in the moving process, so that the end frame sucker arm is twisted to the position which is in same swing with the middle frame sucker arm, and the radian change of the tunnel wall is adapted, and the operation is repeated in such a way.

Compared with the prior art, the invention has the following beneficial effects: this self-cleaning device of highway tunnel reflection of light ring's simple structure, during the use, the sucking disc of end frame sucking disc arm and the sucking disc of well frame sucking disc arm produce the adsorption affinity not simultaneously, promptly: when the sucker of the end frame sucker arm is used for sucking, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, and a wiping brush and a cleaning brush which are tightly attached to the reflective annular wall are used for wiping when the middle frame sucker arm moves; when the middle frame sucker arm moves to a limit position, the sucker of the middle frame sucker arm is sucked and stops scrubbing, the sucker of the end frame sucker arm does not work, and the lower end frame sucker arm is driven by the electric mechanism to move towards the middle frame sucker arm in the same direction; when the end frame sucker arm moves to the limiting position towards the middle frame sucker arm in the same direction, the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm continues to move relative to the end frame sucker arm under the driving of the electric mechanism, the wiping brush and the cleaning brush which are tightly attached to the reflective annular wall continue to wipe when moving, and self-walking wiping is achieved in a reciprocating mode.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a bottom view of an embodiment of the present invention.

Fig. 2 is a side view of an embodiment of the present invention.

Fig. 3 is a side view of the electric mechanism.

Fig. 4 is a schematic diagram of self-walking.

Fig. 5 is a schematic diagram of self-walking.

Fig. 6 is a schematic diagram of self-walking.

Fig. 7 is a schematic diagram of the self-walking principle.

Fig. 8 is a schematic view showing the structure of the wiping brush and the washing brush.

Detailed Description

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 8, a self-cleaning device for a reflective ring of a tunnel on a highway comprises an end frame sucker arm 1, a middle frame sucker arm 2 is arranged inside the end frame sucker arm, an upper sucker 3 for upwards sucking the top wall of the tunnel and a lower sucker 4 for forwards or backwards sucking the side wall of the reflective ring are respectively arranged on the end frame sucker arm and the middle frame sucker arm, and the end frame sucker arm and the middle frame sucker arm are driven by an electric mechanism to move relatively in the width direction of the tunnel;

the middle frame sucker arm is provided with a wiping brush 23 and a cleaning brush 22 which are sequentially arranged along the moving direction at the side of the lower sucker of the middle frame sucker arm, the wiping brush and the cleaning brush are both connected with the middle frame sucker arm through a connecting rod 24, the middle frame sucker arm is provided with a lotion box 25, the lotion box is communicated with the cleaning brush through a lotion pipe 26 to spray liquid, and the inside of the lotion box is provided with a liquid spraying pump. The cleaning fluid is sprayed to the cleaning brush by the fluid spraying pump for cleaning, the cleaning brush is firstly cleaned, and then the cleaning brush is cleaned.

In the embodiment of the invention, the electric mechanism comprises a main tooth girder 5 fixedly arranged on the end frame sucker arm, the main tooth girder extends along the width direction of the tunnel, the lower side surface of the main tooth girder is provided with a rack 6, and the other three sides of the main tooth girder are provided with wheel grooves 7.

In the embodiment of the invention, a fixed auxiliary frame 8 is sleeved on the periphery of the main tooth girder, a gear 9 meshed with a rack is arranged on the lower side of the fixed auxiliary frame, and pressing wheels 10 embedded into corresponding wheel grooves for rolling are arranged on the other three sides of the fixed auxiliary frame.

In the embodiment of the invention, a fixing main frame 11 is fixedly connected below the fixing auxiliary frame, a motor 12 with an output shaft connected with a gear is arranged on the fixing main frame, and the fixing main frame is connected with a middle frame sucker arm.

In the embodiment of the invention, the top wall of the tunnel and the reflecting ring are both arc-shaped.

In the embodiment of the invention, a first rotating shaft 13 extending forwards and backwards is fixedly arranged on the fixing main frame, a second rotating shaft 14 extending forwards and backwards is fixedly arranged in the middle of the suction disc arm of the middle frame, and the first rotating shaft is coaxially inserted into the second rotating shaft for relative rotation.

In the embodiment of the present invention, a torsion spring 15 is coaxially sleeved on the outer peripheries of the first rotating shaft and the second rotating shaft, one end of the torsion spring is fixed with the first rotating shaft, and the other end of the torsion spring is fixed with the second rotating shaft.

In the embodiment of the invention, the upper sucker and the lower sucker are both connected with a vacuum generator 16, the sucker arms of the end frame are provided with a motor touch switch rod 17, a sucker touch switch rod 18 of the end frame and a sucker touch switch rod 19 of the middle frame which are equal in length, the motor touch switch rod, the sucker touch switch rod of the end frame and the sucker touch switch rod of the middle frame extend along the width direction of the tunnel, two ends of the motor touch switch rod are used for touching the sucker arms of the end frame when the sucker arms of the end frame and the sucker arms of the middle frame move relatively, the sucker touch switch rods of the end frame and the sucker touch switch rods of the middle frame are provided with contacts for touching and conducting with the motor touch switch rod, the sucker touch switch rods of the end frame and the sucker touch switch rods of the middle frame, the sucker touch switch rods of the middle frame are provided with controllers, and the controllers are all connected with the motor, the vacuum generator, the motor touch switch rods, the contact is electrically connected with the liquid spraying pump.

In the embodiment of the invention, the rear ends of the connecting rods of the wiping brush and the cleaning brush are fixedly arranged on the same pressure plate 27, the side of the pressure plate of the suction disc arm of the middle frame is fixedly provided with a spring installation cavity 28, the cavity opening of the spring installation cavity faces the pressure plate, and the pressure plate is embedded into the spring installation cavity and is connected with the inner cavity bottom of the spring installation cavity through a spring 29; the shape of the pressure plate is matched with that of the spring installation cavity, so that the pressure plate is compressed in the spring installation cavity and is guided forwards and backwards.

In the embodiment of the invention, the wiping brush and the cleaning brush with the spring are integrated on the self-walking basis, so that the wiping brush and the cleaning brush can be attached to the side wall of the reflective ring, and the wiping effect is improved. The end part of the spring is fixedly connected with the pressure plate and the inner cavity bottom of the spring installation cavity.

A cleaning method of a self-cleaning device for a reflecting ring of a highway tunnel comprises the following steps: during the use, the sucking disc of end frame sucking disc arm produces the adsorption affinity not simultaneously with the sucking disc of well frame sucking disc arm, promptly: when the sucker of the end frame sucker arm is used for sucking, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, and a wiping brush and a cleaning brush which are tightly attached to the reflective annular wall are used for wiping when the middle frame sucker arm moves; when the middle frame sucker arm moves to a limit position, the sucker of the middle frame sucker arm is sucked and stops scrubbing, the sucker of the end frame sucker arm does not work, and the lower end frame sucker arm is driven by the electric mechanism to move towards the middle frame sucker arm in the same direction; when the end frame sucker arm moves to the limiting position towards the middle frame sucker arm in the same direction, the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, the middle frame sucker arm continues to move relative to the end frame sucker arm under the driving of the electric mechanism, the wiping brush and the cleaning brush which are tightly attached to the reflective annular wall continue to wipe when moving, and self-walking wiping is achieved in a reciprocating mode.

Preferably, in the above step: (1) during adsorption, the upper sucker is adsorbed on the top wall 20 of the tunnel, and the lower sucker is adsorbed on the side wall of the light reflecting ring 21; (2) when the sucker of the end frame sucker arm adsorbs, the sucker of the middle frame sucker arm does not work, if the motor rotates forwards in the process that the middle frame sucker arm moves relative to the end frame sucker arm under the driving of the electric mechanism, when the middle frame sucker arm moves to a limiting position, the sucker of the middle frame sucker arm adsorbs, the sucker of the end frame sucker arm does not work, and the motor rotates backwards when the electric mechanism drives the lower end frame sucker arm to move towards the middle frame sucker arm in the same direction; (3) when the middle frame sucker arm moves to a limit position, one end of the motor touch switch rod, the end frame sucker touch switch rod and the middle frame sucker touch switch rod touches a contact on the end frame sucker arm at the same side, so that the motor is changed from positive rotation to negative rotation, the middle frame sucker is changed into adsorption, and the end frame sucker is changed into non-adsorption; when the end frame sucker arms move to the limiting positions in the same direction towards the middle frame sucker arms, the motor touches the switch rod, the suckers of the end frames touch the switch rod, the other end of the sucker of the middle frame touches the contact on the other end frame sucker arm at the same side, so that the motor changes from reverse rotation to forward rotation, the suckers of the middle frame do not adsorb, the suckers of the end frames adsorb, and the steps are repeated in a circulating manner; (4) when the shape of tunnel roof and reflection of light ring is the arc, realize autogyration through setting up of first pivot, torsion spring, second pivot, specifically do: when the end frame sucker arm is not moved and the middle frame sucker arm moves, the sucker of the middle frame sucker arm is contacted with the top wall of the tunnel in the moving process to force the middle frame sucker arm to rotate along the first rotating shaft and the second rotating shaft to adapt to the radian change of the tunnel wall, and the torsion spring is used for storing the torsion force; when the middle frame sucker arm is fixed, the torsion spring is reset, and the end frame sucker arm is twisted by the torsion spring in the moving process, so that the end frame sucker arm is twisted to the position which is in same swing with the middle frame sucker arm, and the radian change of the tunnel wall is adapted, and the operation is repeated in such a way.

The invention is not limited to the best embodiment, and other self-cleaning devices and cleaning methods for the reflecting ring of the highway tunnel can be obtained by anyone in the light of the invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.