CN221441386U - Road marking cleaning device - Google Patents

Abstract

The utility model provides a road marking cleaning device which is arranged on a sweeper and comprises a fixing frame, a cleaning mechanism, a spraying mechanism and a rocker arm mechanism, wherein the road marking on the ground can be cleaned through the cleaning mechanism, water is sprayed towards the cleaning mechanism through the spraying mechanism, the cleaning mechanism can be matched with the cleaning mechanism to perform better cleaning, and the positions of the cleaning mechanism and the spraying mechanism relative to the sweeper can be adjusted through the rocker arm mechanism, so that the road marking at a designated position on the road surface can be cleaned in the travelling process of the sweeper, for example, the road marking on the road surface on the left side of the sweeper can be cleaned. As described above, the road marking cleaning device of the present utility model can provide a better cleaning effect for the road marking and facilitate cleaning of the road marking at different positions on the road surface.

Description

Road marking cleaning device

Technical Field

The utility model belongs to the technical field of cleaning devices, and particularly relates to a road marking cleaning device.

Background

The road marking is used to transmit traffic information marks such as guidance, restriction, warning and the like to traffic participants by using lines, arrows, characters, elevation marks, raised road marks, outline marks and the like on the road surface of the road, and has the functions of controlling and guiding traffic, and can be matched with the marks for use or used independently. The road marking is arranged on the road surface, after the road marking is put into use, dirt on the road marking is easily caused due to the factors of dust accumulation, wheel rolling, friction and the like, and the road marking is difficult to clearly identify due to dirt covering, so that drivers and passengers or pedestrians are difficult to judge road information through the road marking, and potential safety hazards are generated.

At present, although cleaning staff can clean the road surface through traditional road cleaning device, traditional road cleaning device is usually only used for cleaning dust and rubbish on the road surface, is difficult to reach thoroughly clean effect to the road surface marking, can not solve the road surface marking well and be difficult to discern the problem because of dirty, consequently, to the road surface marking at present, not few still through manual clean, waste time and energy.

Accordingly, in order to solve the above-mentioned problems, there is a need for a new cleaning device that can conveniently clean the pavement marking thoroughly.

Disclosure of utility model

The utility model is to solve the above problems, and the object of the utility model is to provide a cleaning device capable of conveniently and thoroughly cleaning pavement markings, which adopts the following technical scheme:

The utility model provides a road marking cleaning device, which is arranged on a cleaning vehicle and is characterized by comprising: the cleaning mechanism is used for cleaning the pavement marking on the ground; the spraying mechanism is used for spraying water towards the cleaning mechanism; and the rocker arm mechanism is used for adjusting the positions of the cleaning mechanism and the spraying mechanism relative to the cleaning vehicle.

The road marking cleaning device provided by the utility model can also have the technical characteristics that the road marking cleaning device further comprises a fixing frame which is arranged at the front end of the cleaning vehicle, wherein the rocker arm mechanism comprises: one end of the first rocker arm is rotatably arranged on the fixing frame; the first pin is used for fixing the angle of the first rocker arm relative to the fixed frame; one end of the second rocker arm is rotatably connected with the other end of the first rocker arm; and the second pin is used for fixing the angle of the second rocker arm relative to the first rocker arm, and the cleaning mechanism is arranged at the other end of the second rocker arm.

The road marking cleaning device provided by the utility model can be further characterized in that one end of the first rocker arm is provided with a plurality of first positioning holes, the fixing frame is provided with a first fixing hole, the first pin is used for being arranged in the first fixing hole and one of the first positioning holes so as to fix the angle of the first rocker arm relative to the fixing frame, the other end of the first rocker arm is provided with a positioning disc, the positioning disc is provided with a plurality of second positioning holes, the second rocker arm is provided with a second fixing hole, and the first pin is used for being arranged in the first fixing hole and one of the first positioning holes so as to fix the angle of the second rocker arm relative to the first rocker arm.

The road marking cleaning device provided by the utility model can also have the technical characteristics that the cleaning mechanism comprises: the connecting frame is arranged at the other end of the second rocker arm; the cleaning frame is arranged at the lower end of the connecting frame; a plurality of cleaning pieces arranged below the cleaning frame; the cleaning driving assembly is arranged on the cleaning frame and used for driving the cleaning piece to rotate; and the lifting driving assembly is arranged on the cleaning frame and used for driving the cleaning frame to lift.

The road marking cleaning device according to the present utility model may further have a technical feature in that the cleaning member includes a cleaning portion and a rotating shaft connected to a tail portion of the cleaning portion, and the cleaning driving assembly includes: a cleaning drive motor; the driving gear is arranged on the output shaft of the cleaning driving motor; and the driven gears are respectively meshed with the driving gears and are respectively connected with the rotating shafts of the cleaning pieces and used for driving the cleaning pieces to rotate.

The road marking cleaning device provided by the utility model can be further characterized in that the cleaning frame is a hollow shell, a plurality of mounting holes are formed in the bottom of the shell, a yielding hole is formed in the top of the shell, the driving gear and the driven gears are arranged in the shell, an output shaft of the cleaning driving motor penetrates through the yielding hole to extend into the shell and is connected with the driving gear, and the rotating shaft of the cleaning piece penetrates through the mounting hole to extend into the shell and is connected with the corresponding driven gear.

The road marking cleaning device provided by the utility model can also have the technical characteristics that the other end of the second rocker arm is provided with a guide groove extending along the vertical direction, and the lifting driving assembly comprises: the lifting hydraulic oil cylinder is arranged on the second rocker arm, and a telescopic shaft of the lifting hydraulic oil cylinder is connected with the connecting frame and used for lifting the connecting frame; and at least two pairs of guide wheels are rotatably arranged on the connecting frame, and each pair of guide wheels are embedded in the guide groove and used for guiding the lifting of the connecting frame.

The road marking cleaning device provided by the utility model can also have the technical characteristics that the number of the lifting hydraulic cylinders is four, two pairs of the lifting hydraulic cylinders are respectively arranged at two sides of the second rocker arm, and the number of the guide wheels is three pairs.

The road marking cleaning device provided by the utility model can also have the technical characteristics that the spraying mechanism comprises: the spray pipe is arranged at the lower end of the second rocker arm, is in fluid communication with the water tank of the sweeper and is provided with a plurality of openings; and a plurality of spray heads respectively connected to the openings, each spray head being provided with a water spray channel and a water spray port, wherein the water spray channel is in fluid communication with the spray pipe, the extending direction of the water spray channel is inclined relative to the ground, and the water spray port is obliquely oriented to the cleaning mechanism.

The road marking cleaning device provided by the utility model can be further characterized in that the spray pipe is a straight circular pipe, the number of the openings and the number of the spray heads are twelve, the twelve openings are sequentially arranged at equal intervals along the length direction of the spray pipe, and the inclination angle of the water spraying channel relative to the ground is 40 degrees.

The actions and effects of the utility model

The road marking cleaning device comprises a cleaning mechanism, a spraying mechanism and a rocker mechanism, wherein the road marking on the ground can be cleaned through the cleaning mechanism, water is sprayed towards the cleaning mechanism through the spraying mechanism, the cleaning can be better carried out by matching with the cleaning mechanism, and the positions of the cleaning mechanism and the spraying mechanism relative to a sweeper can be adjusted through the rocker mechanism, so that the road marking at a specified position on the road can be cleaned in the travelling process of the sweeper, for example, the road marking on the left road of the sweeper can be cleaned. As described above, the road marking cleaning device of the present utility model can provide a better cleaning effect for the road marking and facilitate cleaning of the road marking at different positions on the road surface.

Drawings

FIG. 1 is a perspective view of a pavement marking cleaning apparatus in accordance with an embodiment of the present utility model;

FIG. 2 is a perspective view of a road marking sweeping device according to an embodiment of the present utility model at different angles;

FIG. 3 is a top view of a pavement marking cleaning apparatus according to an embodiment of the present utility model;

FIG. 4 is a perspective view of a cleaning mechanism in an embodiment of the utility model;

FIG. 5 is a top view of a cleaning mechanism in an embodiment of the utility model;

FIG. 6 is a perspective view showing a part of the structure of the cleaning mechanism in the embodiment of the present utility model;

fig. 7 is a perspective view of a spray mechanism in an embodiment of the utility model.

Reference numerals:

The road marking cleaning device 100; a fixing frame 110; rectangular plate 111; an L-shaped frame 112; a rocker arm mechanism 120; a first rocker arm 121; a positioning plate 1211; a positioning hole 1211a; a support tray 1212; a first rotation shaft 122; a first pin 123; a second rocker arm 124; a second rotation shaft 125; a second pin 126; a cleaning mechanism 130; a connection frame 131; a cleaning frame 132; a cleaning member 133; a cleaning portion 1331; a rotation shaft 1332; a cleaning drive assembly 134; a drive gear 1341; a driven gear 1342; a cleaning drive motor 1343; a lift drive assembly 135; lifting hydraulic cylinders 1351; a guide wheel 1352; a position sensor 136; a spray mechanism 140; a shower pipe 141; a showerhead 142.

Detailed Description

In order to make the technical means, the creation features, the achievement of the objects and the effects of the present utility model easy to understand, the pavement marking cleaning apparatus of the present utility model will be specifically described below with reference to the embodiments and the accompanying drawings.

< Example >

The embodiment provides a road marking cleaning device, which is used for being installed at the front end of a sweeper, and cleaning the road marking on the road surface when the sweeper moves and cleans along the road.

Fig. 1 is a perspective view of a road surface marking cleaning device according to the present embodiment, fig. 2 is a perspective view of the road surface marking cleaning device according to the present embodiment at different angles, and fig. 3 is a plan view of the road surface marking cleaning device according to the present embodiment.

As shown in fig. 1 to 3, the pavement marking cleaning apparatus 100 includes a holder 110, a rocker mechanism 120, a cleaning mechanism 130, and a shower mechanism 140.

Wherein, the fixing frame 110 is fixedly arranged at the front end of the sweeper. The fixing frame 110 includes a rectangular plate 111 and two L-shaped frames 112 disposed opposite to each other, and a strip-shaped mounting groove 110a is formed between the two L-shaped frames 112. The side plate of the L-shaped bracket 112 has a plurality of mounting holes and a first fixing hole for fixing the angle of the first rocker arm.

The rocker mechanism 120 is used to adjust the relative positions of the cleaning mechanism 150 and the spray mechanism 160 to the sweeper so that the cleaning mechanism 150 and the spray mechanism 160 can clean the pavement markings on both sides of the sweeper. The rocker mechanism 120 includes a first rocker arm 121, a first rotational shaft 122, a first pin 123, a second rocker arm 124, a second rotational shaft 125, and a second pin 126.

Wherein the first rotation shaft 122 is mounted between the two L-shaped brackets 112. One end of the first rocker arm 121 is cuboid, a first rotating shaft hole and a plurality of first positioning holes are formed in the one end, the one end is installed on the first rotating shaft 122 through the first rotating shaft hole, and therefore the first rocker arm 121 can rotate relative to the fixed frame 110, and the rotating angle is 180 degrees; and the angle of the first swing arm 121 with respect to the fixing frame 110 may be fixed by inserting and pinning the first pin 123 into the first fixing hole and one of the first positioning holes. The other end of the first rocker arm 121 is formed with a positioning disc 1211, a supporting disc 1212 and a limiting groove, wherein the diameter of the positioning disc 1211 is larger than the width of the first rocker arm 121, and a plurality of second positioning holes 1211a are formed in the positioning disc 1211, in this embodiment, nine second positioning holes 1211a are formed and are distributed in a central symmetry along the center of the positioning disc 1211.

The second rotation shaft 125 is installed at the other end of the first swing arm 121, both ends of which are respectively connected to the fixed disk 1211 and the support disk 1212, and the second rotation shaft 125 is received in the limit groove. The second rocker arm 124 is in a frame shape, and has a second rotation shaft hole and a second fixing hole at one end, and the one end is mounted on the second rotation shaft 125 through the rotation shaft hole, so that the second rocker arm 124 can rotate relative to the first rocker arm 121 by 360 degrees (without considering other structural gears); and, the angle of the second swing arm 124 with respect to the first swing arm 121 may be fixed by passing and pinning the second pin 126 through the second fixing hole and one of the second positioning holes 1211a of the positioning plate 1211.

Fig. 4 is a perspective view of the cleaning mechanism in the present embodiment, fig. 5 is a plan view of the cleaning mechanism in the present embodiment, fig. 6 is a perspective view of a part of the cleaning mechanism in the present embodiment, and the elevating assembly is not shown in fig. 4 to 6.

As shown in fig. 1 to 6, the cleaning mechanism 130 is used for cleaning pavement markings, and includes a connecting frame 131, a cleaning frame 132, a plurality of cleaning members 133, a cleaning drive assembly 134, a lift drive assembly 135, and a position sensor 136.

The connecting frame 131 is a bracket with a T-shaped cross section, and is fixedly mounted on the other end of the second rocker arm 124. The sweeper frame 132 is used to mount a sweeper 133 and a sweeper drive assembly 134. The cleaning rack 132 is a casing with a trapezoid cross section, and is provided with a plurality of mounting holes, and is mounted below the connecting rack 131.

The cleaning members 133 are respectively disposed below the cleaning frame 132, in this embodiment, three cleaning members 133 are disposed in a triangular shape, and each cleaning member 133 has a cleaning portion 1331 and a rotating shaft 1332 connected to the tail of the cleaning portion, wherein the cleaning portion 1331 is similar to a broom head in shape and made of plastic.

The cleaning drive assembly 134 includes a drive gear 1341, a plurality of driven gears 1342, and a cleaning drive motor 1343, and in this embodiment, three driven gears 1342 are provided corresponding to the number of cleaning elements 133.

A cleaning drive motor 1343 is mounted above the cleaning frame 132, and its output shaft penetrates into the housing through a mounting hole in the cleaning frame 132, and a drive gear 1341 is fixed to the output shaft. The rotary shafts 1332 of the three cleaning members 133 respectively penetrate through the mounting holes at the bottom of the housing, penetrate into the interior of the housing, and are respectively fixedly connected with the corresponding driven gears 1342, and the three driven gears 1342 are respectively meshed with the driving gears 1341. Therefore, under the driving of the cleaning driving motor 1343, the driving gear 1341 rotates to drive the three driven gears 1342 to rotate, and further drive the three cleaning members 133 to rotate, so that the cleaning members 133 cooperate to improve the cleaning effect on the road markings.

The lift drive assembly 135 includes a lift hydraulic cylinder 1351 and a plurality of pairs of guide wheels 1352. The lifting hydraulic cylinder 1351 is fixed to the other end of the second swing arm 124, and a telescopic end of the lifting hydraulic cylinder 1351 is fixedly connected to the link 131, and a telescopic direction of the telescopic end coincides with a height direction of the second swing arm 124, so that the link 131 can be lifted and lowered relative to the second swing arm 124. The other end of the second swing arm 124 also has a guide groove 124a extending in the height direction thereof, a plurality of pairs of guide wheels 1352 are rotatably mounted on the vertical plate of the link 131, respectively, and each pair of guide wheels 1352 is caught in the guide groove 124a, thereby guiding the lifting. In the present embodiment, four lifting hydraulic cylinders 1351 are provided in total, and are installed on both sides of the second swing arm 124 in a group by group, so that the connection frame 131 and the cleaning frame 132 can be lifted and lowered smoothly from both sides. The guide wheels 1352 have three pairs (i.e., six).

The position sensor 136 is disposed on the lower surface of the cleaning frame 132 and beside the cleaning member 133, and is used for detecting the height of the cleaning frame 132 relative to the ground, so that the lifting hydraulic cylinder 1351 can be correspondingly driven according to the detected height, and the height of the connecting frame 131 relative to the second rocker arm 124 can be adjusted, so that the height of the cleaning frame 132 relative to the ground can be adjusted.

Fig. 7 is a perspective view of the shower mechanism in this embodiment.

As shown in fig. 1, 2 and 7, the spray mechanism 140 is used to spray pavement markings and includes a spray pipe 141 and a plurality of spray heads 142.

The shower pipe 141 is installed under the second swing arm 124 in a straight circular tube shape with both ends in a length direction closed, one side of the shower pipe 141 has a plurality of openings arranged in sequence at equal intervals along the length direction thereof, and in addition, the shower pipe 141 has a water receiving port connected with a clean vehicle-mounted water tank, an air pump, and the like through a water pipe.

A plurality of showerheads 142 are respectively connected to a row of openings of the shower pipe 141. Each spray header 142 is in a hammer shape, one end with a smaller diameter is connected to the opening of the spray pipe 141, the other end is a water jet, and the water jet is communicated with the spray pipe 141 through a water spraying channel inside the spray header 142, and the water spraying channel inside the spray header extends along the length direction of the spray header 142. The length direction of each shower head 142 is perpendicular to the length direction of the shower pipe 141, and is inclined with respect to the length direction of the second swing arm 124, and is inclined toward the cleaning mechanism 130. When the second rocker arm 124 is installed on the sweeper, the second rocker arm 124 is approximately parallel to the ground, so that the length direction (namely the water outlet direction) of the plurality of spray heads 142 is inclined relative to the ground, and under a certain water pressure, water sprayed by the spray heads 142 can reach the sweeping part 133, so that the water can be matched with the rotating sweeping part 133, and the aim of better cleaning the pavement marker is fulfilled. Alternatively, the showerhead 142 may be configured to spray cleaning agent. In this embodiment, the shower pipe 141 has twelve openings, and accordingly, the shower heads 142 have twelve openings, which are arranged in sequence at equal intervals along the length direction of the shower pipe 141. The length direction of each showerhead 142 is inclined at an angle of 40 degrees relative to the ground.

The flow of use of the road marking cleaning device 100 will be described below.

Before the road surface cleaning is started, the road surface marking cleaning device 100 is fixedly installed at the front end of the sweeper, and the road surface marking cleaning device 100 is adjusted according to the position of the road surface marking to be cleaned. Specifically, when the road marking on the left side needs to be cleaned along the traveling direction of the sweeper, the first rocker 121 is rotated to the left side of the fixed frame 110, the angle of the first rocker 121 relative to the fixed frame 110 is fixed through the first pin 123, the second rocker 124 is rotated to the target position corresponding to the road marking, and the angle of the second rocker 124 relative to the first rocker 121 is fixed through the second pin 126. Then, the cleaning drive motor 1343 is electrically connected to the power supply of the motor sweeper and started.

When the sweeper cleans the road surface, the output shaft of the sweeping drive motor 1343 drives the three driven gears 1342 to rotate through the drive gears 1341, and then drives the three sweeping pieces 133 to rotate so as to sweep the road surface marking on the ground. Meanwhile, the plurality of spray heads 142 spray water obliquely towards the cleaning member 133 to clean the road marking, and a better cleaning effect is achieved by matching with the rotation of the cleaning member 133.

In the whole cleaning process, the position sensor 136 detects the height of the cleaning frame 132 relative to the ground in real time, the vehicle-mounted control device correspondingly controls the lifting hydraulic cylinder 1351 according to the detected height, when the detected height exceeds a preset threshold value, the telescopic end of the lifting hydraulic cylinder 1351 is controlled to drive the connecting frame 131 and the cleaning frame 132 to descend, so that the three plastic cleaning pieces 133 can be fully contacted with the road markings on the ground, and the cleaning effect is ensured.

Example operation and Effect

According to the road marking cleaning device provided by the embodiment, the road marking cleaning device comprises the cleaning mechanism, the spraying mechanism and the rocker arm mechanism, the road marking on the ground can be cleaned through the cleaning mechanism, water is sprayed towards the cleaning mechanism through the spraying mechanism, the cleaning mechanism can be matched with the cleaning mechanism to clean better, the cleaning mechanism and the spraying mechanism can be adjusted relative to the position of the cleaning vehicle through the rocker arm mechanism, and therefore the road marking at the appointed position on the road can be cleaned in the advancing process of the cleaning vehicle, for example, the road marking on the road on the left side of the cleaning vehicle can be cleaned. As described above, the road marking cleaning device of the present utility model can provide a better cleaning effect for the road marking and facilitate cleaning of the road marking at different positions on the road surface.

In the embodiment, the rocker arm mechanism comprises a rotatable first rocker arm, a first pin, a rotatable second rocker arm and a second pin, so that the cleaning mechanism can be conveniently adjusted to a target position corresponding to the pavement marking through rotation of the first rocker arm and the second rocker arm, and the adjusted angles of the first rocker arm and the second rocker arm can be locked through the corresponding pins, and the operation is convenient.

In the embodiment, the end part of the first rocker arm is provided with a positioning disc, and the positioning disc is provided with nine positioning holes for realizing the angle locking of the second rocker arm, so that the adjustable angle range of the second rocker arm is large, and the device can be suitable for more scenes.

In the embodiment, the cleaning mechanism comprises three rotatable and liftable plastic cleaning pieces (broom heads), so that the plastic cleaning pieces can be pressed on the pavement marking through lifting, the plastic cleaning pieces are enabled to be in full contact, and more ideal pavement marking cleaning effect can be achieved through rotation of the three broom heads and water spraying.

Further, the gear set for driving the plastic cleaning element to rotate is accommodated in the cleaning frame (housing), so that the components are not easy to be stained, the service life of the components can be prolonged, and the appearance of the device is simplified and attractive.

In the embodiment, the spraying mechanism is provided with twelve spraying heads which are arranged in a row at equal intervals and are obliquely arranged, water can be sprayed towards the direction of the broom head, and the sprayed water mist can cover the target area more uniformly, so that a better cleaning effect is realized by matching with the broom head.

The above examples are only for illustrating the specific embodiments of the present utility model, and it should be understood by those skilled in the art that the present utility model is not limited by the above examples, but the above examples and description merely illustrate the principles of the present utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A pavement marking cleaning device disposed on a motor sweeper, comprising:

The cleaning mechanism is used for cleaning the pavement marking on the ground;

the spraying mechanism is used for spraying water towards the cleaning mechanism; and

And the rocker arm mechanism is used for adjusting the positions of the cleaning mechanism and the spraying mechanism relative to the cleaning vehicle.

2. The pavement marking cleaning apparatus of claim 1, further comprising:

the fixed frame is arranged at the front end of the sweeper,

Wherein, the rocking arm mechanism includes:

one end of the first rocker arm is rotatably arranged on the fixing frame;

The first pin is used for fixing the angle of the first rocker arm relative to the fixed frame;

One end of the second rocker arm is rotatably connected with the other end of the first rocker arm; and

And the second pin is used for fixing the angle of the second rocker arm relative to the first rocker arm, and the cleaning mechanism is arranged at the other end of the second rocker arm.

3. The pavement marking cleaning apparatus of claim 2, wherein:

Wherein one end of the first rocker arm is provided with a plurality of first positioning holes,

The fixing frame is provided with a first fixing hole,

The first pin is arranged in the first fixing hole and one of the first positioning holes so as to fix the angle of the first rocker arm relative to the fixing frame,

The other end of the first rocker arm is provided with a positioning disc which is provided with a plurality of second positioning holes,

The second rocker arm has a second fixing hole,

The first pin is used for being arranged in the first fixing hole and one of the first positioning holes so as to fix the angle of the second rocker arm relative to the first rocker arm.

4. The pavement marking cleaning apparatus of claim 2, wherein:

wherein, clean the mechanism and include:

the connecting frame is arranged at the other end of the second rocker arm;

The cleaning frame is arranged at the lower end of the connecting frame;

A plurality of cleaning pieces arranged below the cleaning frame;

The cleaning driving assembly is arranged on the cleaning frame and used for driving the cleaning piece to rotate; and

And the lifting driving assembly is arranged on the cleaning frame and used for driving the cleaning frame to lift.

5. The pavement marking cleaning apparatus of claim 4, wherein:

Wherein the cleaning piece comprises a cleaning part and a rotating shaft connected with the tail part of the cleaning part,

The cleaning drive assembly includes:

A cleaning drive motor;

The driving gear is arranged on the output shaft of the cleaning driving motor; and

And the driven gears are respectively meshed with the driving gears and are respectively connected with the rotating shafts of the cleaning pieces and used for driving the cleaning pieces to rotate.

6. The pavement marking cleaning apparatus of claim 5, wherein:

Wherein the cleaning frame is a hollow shell, a plurality of mounting holes are arranged at the bottom of the shell, a yielding hole is arranged at the top of the shell,

The driving gear and the driven gears are arranged in the shell,

An output shaft of the cleaning driving motor penetrates through the yielding hole and stretches into the shell and is connected with the driving gear,

The rotating shaft of the cleaning piece penetrates through the mounting hole to extend into the shell and is connected with the corresponding driven gear.

7. The pavement marking cleaning apparatus of claim 4, wherein:

Wherein the other end of the second rocker arm is provided with a guide groove extending along the vertical direction,

The lift drive assembly includes:

The lifting hydraulic oil cylinder is arranged on the second rocker arm, and a telescopic shaft of the lifting hydraulic oil cylinder is connected with the connecting frame and used for lifting the connecting frame; and

At least two pairs of guide wheels are rotatably arranged on the connecting frame, and each pair of guide wheels are embedded in the guide groove and used for guiding the lifting of the connecting frame.

8. The pavement marking cleaning apparatus of claim 7, wherein:

Wherein the number of the lifting hydraulic cylinders is four, two pairs of lifting hydraulic cylinders are respectively arranged at two sides of the second rocker arm,

The number of the guide wheels is three.

9. The pavement marking cleaning apparatus of claim 2, wherein:

Wherein, spray mechanism includes:

The spray pipe is arranged at the lower end of the second rocker arm, is in fluid communication with the water tank of the sweeper and is provided with a plurality of openings; and

A plurality of spray heads respectively connected with the openings and provided with a water spraying channel and a water spraying port which are in fluid communication with the spray pipe,

The extending direction of the water spraying channel is inclined relative to the ground,

The water jet is inclined towards the cleaning mechanism.

10. The pavement marking cleaning apparatus of claim 9, wherein:

Wherein the spray pipe is a straight round pipe,

The number of the openings and the number of the spray heads are twelve,

Twelve openings are sequentially arranged at equal intervals along the length direction of the spray pipe,

The water spray channel is inclined at an angle of 40 degrees relative to the ground.