A road expansion joint cleaning apparatus, method and use on a motorway

Abstract

This invention provides a road expansion joint cleaning device, method, and its application on highways. The device includes a load-bearing body, a cleaning unit, a positioning control device, and a drive unit. The cleaning unit can deeply clean the expansion joints covered by the bottom of the load-bearing body. After cleaning, the drive unit controls the load-bearing body to move to an adjacent uncleaned area. After moving, the cleaning unit can continuously clean the expansion joints in the uncleaned area. The cyclical control of the load-bearing body and cleaning unit enables continuous cleaning of road surface expansion joints. This equipment can automatically clean road expansion joints, ensuring cleaning efficiency; at the same time, it has minimal impact on normally driving vehicles, ensuring the safety of drivers and cleaning personnel.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a road expansion joint cleaning device, method, and its application on highways. Background Technology

[0002] Expansion joints are reserved between different paved sections of the road surface to meet the expansion and contraction needs of different paved sections under different temperature and load conditions; in order to ensure the normal effectiveness of the expansion joints, cleaning of the expansion joints is very necessary.

[0003] Currently used equipment mostly cleans expansion joints by cutting or blowing air. Some also use cleaning hooks and negative pressure equipment to perform deep cleaning. The existing expansion joint cleaning process requires staff to operate the equipment, which is inefficient and has high labor costs. For some non-closed roads, vehicles continue to pass by while the cleaning equipment is working, especially on high-speed roads. This not only affects the normal driving of vehicles but also poses a significant threat to the personal safety of the expansion joint cleaning personnel. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a road expansion joint cleaning device, method, and its application on highways. This device can automatically clean road expansion joints, ensuring cleaning efficiency; at the same time, it has minimal impact on vehicles traveling normally, ensuring the safety of drivers and cleaning personnel.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A road expansion joint cleaning device, comprising:

[0007] The supporting body has an arc-shaped upper surface and a cleaning channel along the width direction is opened in the middle of its bottom end;

[0008] A cleaning device, installed in a cleaning channel, includes a cleaning mounting base and a cleaning rod inclinedly arranged on one side of the cleaning mounting base. A first electronic control device is provided on the surface of the cleaning mounting base to control the rotation of the cleaning rod.

[0009] Position control device, installed in the cleaning channel, is used to control the cleaning rod to move linearly along the length of the expansion joint;

[0010] The drive unit, installed at the bottom of the load-bearing body, is used to control the linear movement of the load-bearing body along the length of the expansion joint;

[0011] After the cleaning rod is cleaned along the cleaning channel by the position control device, the carrying body is moved one standard width toward the predetermined area by the drive device.

[0012] Preferably, the supporting body further includes a spliced ​​support frame and an integrally formed support panel. The support panel is installed on the upper end of the spliced ​​support frame and is bent. The vertex and edge of the middle surface of the support panel form a slope line, wherein the slope line and the bottom surface of the spliced ​​support frame form an angle between 3° and 5°.

[0013] Preferably, the position control device includes a position control slider, and the cleaning mounting base and the position control slider are connected by a control shaft for rotation. The inner wall of the position control slider is provided with an adjustment device, wherein the adjustment device controls the deflection angle of the cleaning mounting base and the cleaning rod.

[0014] Preferably, an L-shaped adjusting seat is fixedly connected to the upper surface of the cleaning mounting base. The adjusting device includes an adjusting sleeve and an adjusting screw threadedly connected to the inner wall of the adjusting sleeve. The adjusting sleeve is connected to the adjusting seat through the installation of the workpiece. A second electrical control device for controlling the rotation of the adjusting screw is provided on the inner wall of the position control slider.

[0015] Preferably, the positioning control device further includes a positioning control screw and a guide rod, the guide rod passing through the positioning control slider and sliding relative to it, and the positioning control screw passing through the positioning control slider and being threadedly connected to it.

[0016] Preferably, the side wall of the cleaning mounting base is further provided with an atomizing spray device located above the cleaning rod, and the side wall of the position control slider is provided with a control component sleeved on the outside of the control shaft. Water mist is sprayed towards the control shaft through the atomizing spray device, and the amount of water mist sprayed is adjusted by the control component according to the deflection angle of the control shaft.

[0017] Preferably, the atomizing spray device includes a spray assembly, a pump assembly, and a pump cam. The pump cam is fixedly connected to the cleaning rod. During rotation, the pump cam intermittently squeezes the pump assembly to allow water mist to be sprayed from the spray assembly. The pump assembly includes a pump mounting box. An elastic first pump airbag is provided on the inner wall of the pump mounting box. A pump baffle that slides relative to the inner wall of the pump mounting box is provided on the outer side of the first pump airbag. The pump baffle is located on the rotation path of the pump cam.

[0018] Preferably, a second pumping airbag is further provided inside the pumping installation box, and a pumping partition is provided between the second pumping airbag and the first pumping airbag. The control component includes a control box, a first control partition is fixedly provided on the inner wall of the control box, the control shaft passes through the control box and a second control partition located inside the control box is fixedly provided on its surface, and an elastic control airbag is provided between the first control partition and the second control partition, and the control airbag is connected to the second pumping airbag.

[0019] A method for cleaning road expansion joints includes the following steps:

[0020] S1. Place the load-bearing body on one side of the expansion joint on the road surface, so that the cleaning channel corresponds to the position of the expansion joint;

[0021] S2. Adjust the cleaning rod to a suitable deflection angle according to the depth of the expansion joint. After adjustment, control the cleaning rod to rotate and complete the cleaning of the expansion joint.

[0022] S3. The cleaning rod is controlled to move linearly along the cleaning channel by the position control device to complete the continuous cleaning of the expansion joints covered under the supporting body;

[0023] S4. After the expansion joint in the area has been cleaned, the main body is controlled by the drive device to move along the direction of the expansion joint, moving one standard width to the predetermined area, and the expansion joint is cleaned continuously again by the cleaning rod.

[0024] An application of a road expansion joint cleaning device on a highway involves placing the cleaning device on one side of the emergency lane of the highway, aligning the cleaning channel with the location of the expansion joint to be cleaned, and controlling the cleaning rod to move along the cleaning channel via a positioning device to complete the cleaning of the expansion joint. A laser device is used to laser-position the cleaning device on the outside of the road, and a drive device controls the cleaning device to move inward along the expansion joint to complete the continuous cleaning of the expansion joint on the highway surface.

[0025] The beneficial effects of this invention are as follows:

[0026] Compared with existing expansion joint cleaning equipment, this equipment can achieve continuous automatic cleaning of road expansion joints without manual intervention, improving automation and cleaning efficiency while ensuring safety during the cleaning process. Furthermore, it uses an inclined cleaning rod to clean the expansion joints, and by adjusting the angle, it can clean expansion joints of different depths, meeting the cleaning needs of various road surfaces. Simultaneously, the short upper end of the cleaning rod, the small overall size of the equipment, and the small surface curvature allow vehicles to pass normally during the cleaning process, minimizing impact on other vehicles and ensuring driving safety. It is particularly suitable for the automatic cleaning of expansion joints on highway surfaces, eliminating the need to close the road and ensuring normal vehicle passage, thus guaranteeing the safety of both vehicles and cleaning personnel. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the cleaning device of the present invention;

[0028] Figure 2 This is a bottom view of the cleaning device of the present invention.

[0029] Figure 3 This is a side view of the cleaning device of the present invention.

[0030] Figure 4 This is a three-dimensional schematic diagram of the cleaning device of the present invention;

[0031] Figure 5 For the present invention Figure 4 A top-view structural diagram;

[0032] Figure 6 For the present invention Figure 5 A schematic diagram of the AA-line cross-sectional structure;

[0033] Figure 7 For the present invention Figure 4 A schematic diagram of the side view structure;

[0034] Figure 8 For the present invention Figure 7 Schematic diagram of the BB line cross-section structure.

[0035] In the diagram: 100, main support body; 110, cleaning channel; 120, spliced ​​support frame; 130, support panel; 200, drive device; 300, cleaning device; 310, mounting base; 311, first electrical control device; 312, adjusting seat; 320, cleaning rod; 330, control shaft; 331, second control partition; 400, position control device; 410, position control slider; 420, position control screw; 430, guide rod; 500, adjusting device; 510, workpiece mounting; 520, adjustment. 530. Sleeve; 540. Adjusting screw; 600. Second electrical control device; 610. Atomizing spray device; 611. Spray assembly; 612. Mounting plate; 613. Mixing container; 614. Atomizing nozzle; 620. Pump assembly; 621. Pump mounting box; 622. First pump airbag; 623. Pump baffle; 624. Second pump airbag; 625. Pump baffle; 630. Pump cam; 700. Control assembly; 710. Control box; 711. First control baffle; 720. Control airbag. Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0037] See attached document Figure 1 -Appendix Figure 8A road expansion joint cleaning device includes a load-bearing body 100, a cleaning device 300, a positioning control device 400, a drive device 200, and other devices. The cleaning device 300 can perform deep cleaning of the expansion joints covered by the bottom of the load-bearing body 100. After cleaning, the drive device 200 controls the load-bearing body 100 to move to an adjacent uncleaned area. After moving, the cleaning device 300 can continuously clean the expansion joints in the uncleaned area. By cyclically controlling the movement of the load-bearing body 100 and the cleaning device 300, continuous cleaning of the road surface expansion joints can be achieved, realizing an automated cleaning process for expansion joints. Furthermore, the arc-shaped design at the top of the load-bearing body 100 results in a small vertical height, minimizing the impact on vehicles driving normally on the road and ensuring a safe cleaning process for the expansion joints.

[0038] The upper surface of the supporting body 100 is arc-shaped, and a cleaning channel 110 is provided at the middle of its bottom end along the width direction. The cleaning channel 110 is located in the middle of the supporting body 100. During the cleaning of the expansion joint, the cleaning channel 110 is opposite to the length direction of the expansion joint, which allows the cleaning device 300 to continuously clean the covered expansion joint.

[0039] The cleaning device 300 is installed in the cleaning channel 110 and includes a cleaning mounting base 310 and a cleaning rod 320 inclined on one side of the cleaning mounting base 310. A first electronic control device 311 is provided on the surface of the cleaning mounting base 310 to control the rotation of the cleaning rod 320. By controlling the rotation of the cleaning rod 320, the expansion joint can be continuously cleaned. By controlling the cleaning rod 320 to deflect to different angles, its vertical projection changes, which is suitable for cleaning expansion joints of different depths and meets the cleaning requirements. Compared with the traditional cutting disc cleaning method, it has a larger cleaning width and better cleaning effect. Most of its cleaning part is located inside the expansion joint, and the size above the ground is small, which is suitable for installation in the low-height load-bearing body 100. This can reduce the height of the arc apex of the load-bearing body 100 and reduce the impact on vehicles driving normally on the road. The cleaning rod 320 has spiral cleaning grooves on its surface. During the rotation, it can continuously clean the sand and mud in the expansion joint. Under the action of the surface cleaning grooves, it loosens them and brings them to the ground.

[0040] Position control device 400 is installed in cleaning channel 110 to control cleaning rod 320 to move linearly along the length of expansion joint. By automatically controlling cleaning rod 320 to move along cleaning channel 110 through position control device 400, continuous cleaning of expansion joint can be achieved, meeting the requirements of continuous cleaning.

[0041] The drive unit 200 is installed at the bottom of the support body 100 and is used to control the linear movement of the support body 100 along the length of the expansion joint. The drive unit 200 includes an electric wheel set, which is symmetrically installed on both sides of the cleaning channel 110. It can control the movement of the support body 100 along the length or width direction to realize the automatic driving process. At the same time, the drive unit 200 also includes a hydraulic lifting system, which allows the electric wheel set to be raised and lowered. This allows the electric wheel set to extend out of the bottom of the support body 100 and contact the ground, allowing the support body 100 to be raised as a whole, thus realizing the driving control process. During the cleaning process of the expansion joint, the electric wheel set can be retracted into the support body 100, allowing the support body 100 to contact the ground. This ensures the smooth contact of the arc at both ends with the ground and improves the overall support strength, so as to ensure that it can bear the weight of the vehicle and allow the vehicle to pass relatively smoothly, reducing the impact of the vehicle on the road.

[0042] After the cleaning rod 320 is cleaned along the cleaning channel 110 by the position control device 400, the carrying body 100 is moved by the drive device 200 to a predetermined area by a standard width. The predetermined area is the area of ​​the adjacent expansion joint that has not yet been cleaned. The standard width is determined according to the width of the carrying body 100. Usually, the width of the carrying body 100 can be set to the width of a standard lane so that the carrying body 100 can cover a lane at a time and complete the cleaning of the expansion joint on the surface of that lane without affecting the adjacent lanes, while ensuring the cleaning efficiency of the cleaning rod 320.

[0043] The equipment can be automatically controlled during the cleaning process without manual intervention. Workers can place warning triangles in front of the lane to remind passing vehicles to slow down and pass safely through the construction section. Vehicles that cannot slow down can also drive directly over the surface of the load-bearing body 100. The surface curvature of the load-bearing body 100 is small and will not affect normally driving vehicles, ensuring safe passage. The equipment does not require special personnel to perform the cleaning operation, avoiding safety accidents during the cleaning process and meeting the needs of modern automated construction.

[0044] The load-bearing body 100 also includes a spliced ​​load-bearing frame 120 and an integrally formed load-bearing panel 130. The load-bearing panel 130 is installed on the upper part of the spliced ​​load-bearing frame 120 and is bent. The apex and edge of the middle surface of the load-bearing panel 130 form a slope line, wherein the slope line forms an angle between 3° and 5° with the bottom surface of the spliced ​​load-bearing frame 120. The load-bearing panel 130 is made of a single piece of steel plate and is fixed to the spliced ​​load-bearing frame 120 on the inner edge. Its surface has no protruding obstacles, ensuring normal vehicle passage. See attached figure for details. Figure 3It should be noted that the angle between the top and edge of the load-bearing panel 130 and the ground is between 3° and 5°. A reduction to within 5° lowers the slope of the equipment surface, minimizing the impact on vehicles. Maintaining an angle above 3° ensures sufficient internal space within the load-bearing body 100 to accommodate the equipment, while also reducing the equipment's length, overall weight, and road surface occupancy. This allows for a tighter fit with the road surface, ensuring stable load bearing. Furthermore, the reduced weight enhances the equipment's flexibility and speed during operation, shortening the expansion joint cleaning time and improving cleaning efficiency.

[0045] The splicing support frame 120 has internal arrays of reinforcing ribs to connect the support panel 130 to the ground, ensuring normal force transmission and stability of the entire device during vehicle passage.

[0046] The air nozzle position control device 400 includes a position control slider 410. The cleaning mounting base 310 and the position control slider 410 are rotatably connected by a control shaft 330. An adjustment device 500 is provided on the inner wall of the position control slider 410. The adjustment device 500 controls the deflection angle of the cleaning mounting base 310 and the cleaning rod 320. The adjustment device 500 can adjust the deflection angle of the cleaning rod 320. Different deflection angles of the cleaning rod 320 result in different projection lengths in the vertical direction, which is suitable for cleaning expansion joints of different depths and sizes, and meets cleaning requirements.

[0047] Please refer to the appendix for details. Figure 6 An L-shaped adjusting seat 312 is fixedly connected to the upper surface of the mounting base 310. The adjusting device 500 includes an adjusting sleeve 520 and an adjusting screw 530 threadedly connected to the inner wall of the adjusting sleeve 520. The adjusting sleeve 520 is connected to the adjusting seat 312 via the mounting workpiece 510. A second electrical control device 540 is provided on the inner wall of the position control slider 410 to control the rotation of the adjusting screw 530. During the rotation of the adjusting screw 530 controlled by the second electrical control device 540, the adjusting sleeve 520 can be pulled to move linearly. The adjusting sleeve 520 and the adjusting seat 312 are connected via the mounting workpiece 510. The mounting base 310 and cleaning rod 320 can be controlled to deflect at a predetermined angle to achieve deflection adjustment. It should be noted that by setting an L-shaped adjustment seat 312, the overall deflection angle can be controlled from the end, which can extend the deflection control torque and ensure the stability of deflection control. Furthermore, a limit groove can be opened on the side wall of the adjustment seat 312, and a horizontally arranged limit rod is set on the surface of the mounting workpiece 510. During the movement of the adjustment sleeve 520, it can push the limit rod to abut against the inner wall of the limit groove, so as to realize the adaptive control of the forward and reverse deflection angles of the mounting base 310 and cleaning rod 320 and meet the control requirements.

[0048] Please refer to the appendix for details. Figure 2 The position control device 400 also includes a position control screw 420 and a guide rod 430. The guide rod 430 passes through the position control slider 410 and slides relative to it. The position control screw 420 passes through the position control slider 410 and is threadedly connected to it. The position control screw 420 is controlled to rotate by an electrical control device. During the rotation, it can control the position control slider 410 to move linearly along the direction of the guide rod 430, thereby realizing the drive control process. Through the screw control, the cleaning device 300 can move along the entire stroke of the cleaning channel 110, thereby achieving thorough cleaning of the bottom extension of the supporting body 100, increasing the length of a single cleaning operation, and improving the cleaning efficiency of the cleaning equipment.

[0049] Meanwhile, a negative pressure device is also installed on the outside of the cleaning equipment to clean the impurities from the inside of the expansion joint to the surface. It can sequentially clean the inside of the expansion joint and the sand and gravel on the outside, which greatly improves the efficiency of expansion joint cleaning and fully automates the expansion joint cleaning work. Example

[0050] The difference from Embodiment 1 is that an atomizing spray device 600 is also provided on the side wall of the cleaning mounting base 310, located above the cleaning rod 320. A control component 700 is provided on the side wall of the position control slider 410, sleeved on the outside of the control shaft 330. The atomizing spray device 600 sprays water mist towards the control shaft 330, and the control component 700 adjusts the amount of water mist sprayed according to the deflection angle of the control shaft 330. During the cleaning process, the water mist sprayed by the atomizing spray device 600 towards the cleaning rod 320 can cool and reduce dust at the construction site, improve the cleaning life of the cleaning rod 320, and improve the cleaning environment. Furthermore, when the control shaft 330 rotates to different angles, the cleaning rod 320 can rotate synchronously to different angles. When the deflection angle is large, the cleaning depth of the expansion joint is large, and increasing the amount of water mist sprayed can improve the cooling and dust reduction effect. Conversely, reducing the amount of water mist sprayed can achieve adaptive adjustment, reduce related losses, and reduce cleaning costs.

[0051] The atomizing spray device 600 includes a spray assembly 610, a pump assembly 620, and a pump cam 630. The pump cam 630 is fixedly connected to the cleaning rod 320. During rotation, the pump cam 630 intermittently squeezes the pump assembly 620 to spray water mist from the spray assembly 610. The spray assembly 610 is located at a predetermined position above the cleaning rod 320, in the middle position. The sprayed water mist can directly cover the surface of the expansion joint being cleaned, achieving efficient dust reduction and cooling. At the same time, the pump cam 630 is fixed to the cleaning rod 320, and water mist can be sprayed synchronously during the cleaning process of the cleaning rod 320's rotation. This achieves automatic control, eliminating the need for a dedicated control probe and ensuring stable control. Especially during vehicle operation, when the cleaning equipment is subjected to significant pressure, severe internal vibration, and a harsh environment, the above-mentioned mechanical structure controls the water mist spraying, providing stable control, long service life, and low failure rate, making it particularly suitable for use in such situations.

[0052] Please refer to the appendix for details. Figure 8 The pump assembly 620 includes a pump mounting box 621. An elastic first pump air bladder 622 is provided on the inner wall of the pump mounting box 621. A pump baffle 625 is provided on the outer side of the first pump air bladder 622, which slides relative to the inner wall of the pump mounting box 621. The pump baffle 625 is located on the rotation path of the pump cam 630. A guide assembly is provided inside the pump mounting box 621 to guide the movement of the pump baffle 625. During the rotation of the pump cam 630, the pump baffle 625 can be intermittently squeezed, and the first pump air bladder 622 inside can be squeezed to control the pumping.

[0053] It should be noted that an elastic element, such as a spring, can be installed inside the pump liquid mounting box 621 to assist in the reset of the pump liquid baffle 625. The first pump liquid air bag 622 is connected to two pump liquid pipes, each equipped with a one-way valve. During the contraction and expansion of the first pump liquid air bag 622, the liquid can be pumped directionally into the spray assembly 610 to achieve the spraying of water mist.

[0054] It should also be noted that the spray assembly 610 includes a mounting plate 611, a mixing container 612, and an atomizing nozzle 613. The liquid is pumped into the mixing container 612 for storage and is finally sprayed out from the atomizing nozzle 613. The pumping assembly 620 can be set into two groups, one group pumping liquid and the other group pumping gas. The two enter the pumping mounting box 621 for mixing and are finally sprayed out from the atomizing nozzle 613 to form a fine water mist, achieving efficient dust suppression and cooling.

[0055] The pump mounting box 621 also contains a second pumping airbag 624. A pumping baffle 623 is provided between the second pumping airbag 624 and the first pumping airbag 622. The pumping baffle 623 is located between the two and slides relative to the pump mounting box 621. By controlling the expansion volume of the second pumping airbag 624, the compression stroke of the first pumping airbag 622 can be changed. When the expansion volume of the second pumping airbag 624 is larger, the compression stroke of the first pumping airbag 622 can be larger, and more liquid can be pumped. Conversely, the amount of liquid pumped is reduced, thereby realizing automatic control of the water mist volume.

[0056] The control component 700 includes a control box 710. A first control partition 711 is fixedly disposed on the inner wall of the control box 710. A control shaft 330 passes through the control box 710 and a second control partition 331 located inside the control box 710 is fixedly disposed on its surface. An elastic control airbag 720 is disposed between the first control partition 711 and the second control partition 331. The control airbag 720 is connected to the second pumping airbag 624. After the control shaft 330 rotates, it can change the size of the space between the second control partition 331 and the first control partition 711, thereby adjusting the compression amount of the control airbag 720. The control airbag 720 and the second pumping airbag 624 are in a connected state, thereby realizing the control of the expansion volume of the second pumping airbag 624.

[0057] A method for cleaning road expansion joints includes the following steps:

[0058] S1. Place the supporting body 100 on one side of the expansion joint on the road surface, so that the cleaning channel 110 corresponds to the position of the expansion joint, and complete the preparation work for cleaning.

[0059] S2. Adjust the cleaning rod 320 to a suitable deflection angle according to the depth of the expansion joint. After adjustment, control the rotation of the cleaning rod 320 to complete the cleaning of the expansion joint. Control the deflection angle of the cleaning rod 320 according to the depth of the expansion joint to meet the needs of cleaning expansion joints on different road surfaces. While rotating, the cleaning rod 320 can clean the sand and gravel in the expansion joint, loosen it and clean it to the road surface, and then simultaneously suck it up through the negative pressure equipment.

[0060] S3. The cleaning rod 320 is controlled by the position control device 400 to move linearly along the cleaning channel 110 to complete the continuous cleaning of the expansion joint covered under the supporting body 100. The cleaning rod 320 can move linearly along the cleaning channel 110 to continuously clean the expansion joint covered below throughout its entire stroke.

[0061] S4. After the expansion joint in the area is cleaned, the drive device 200 controls the load-bearing body 100 to move along the direction of the expansion joint, moving it to a predetermined area with a standard width. The cleaning rod 320 then completes the continuous cleaning of the expansion joint again. The standard width is determined according to the width of the cleaning equipment, preferably set to the width of a road. The cleaning equipment is moved to the road surface to be cleaned, which can realize the continuous cleaning of multi-lane roads.

[0062] It should be noted that during the movement of the supporting body 100, the cleaning device 300 is controlled by the position control device 400 to move in the opposite direction to avoid generating large resistance during the movement, so that the equipment can move quickly to the predetermined area and complete the continuous cleaning of the expansion joints in the predetermined area.

[0063] Taking the cleaning of expansion joints on highways as an example; the cleaning equipment is placed on one side of the emergency lane of the highway, and the cleaning channel 110 is aligned with the position of the expansion joint to be cleaned. The cleaning rod 320 is controlled to move along the cleaning channel 110 by the position control device 400 to complete the cleaning of the expansion joint; the cleaning equipment is laser-positioned on the outside of the road by a laser device, and the cleaning equipment is controlled to move inward along the expansion joint by the drive device 200 to complete the continuous cleaning of the expansion joint on the highway surface; the laser device can position the moving equipment so that it can move along the predetermined direction, that is, the length direction of the expansion joint, to ensure the accuracy of the moving position.

[0064] The aforementioned equipment is used for cleaning expansion joints on highway surfaces. It has a good cleaning effect, especially in that it can achieve automatic cleaning, while the cleaning process does not require manual intervention. The staff only needs to direct the vehicles to slow down at the front of the cleaning site. It can automatically clean the expansion joints without closing the road, meeting the needs of highway traffic. Moreover, the overall equipment is small in size and has a small surface curvature, so normal vehicles can safely pass through the surface of the equipment, ensuring the normal passage of the equipment and the safety of vehicle driving and cleaning staff.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road joint cleaning apparatus, characterized by, include: The supporting body (100) has an arc-shaped upper surface and a cleaning channel (110) arranged along the width direction at the middle of its bottom end. The cleaning device (300) is installed in the cleaning channel (110) and includes a cleaning mounting base (310) and a cleaning rod (320) inclined on one side of the cleaning mounting base (310). The surface of the cleaning mounting base (310) is provided with a first electronic control device (311) for controlling the rotation of the cleaning rod (320). Position control device (400) is installed in cleaning channel (110) to control cleaning rod (320) to move linearly along the length of expansion joint; A drive unit (200) is installed at the bottom of the bearing body (100) and is used to control the bearing body (100) to move linearly along the length of the expansion joint; After the cleaning rod (320) is cleaned along the cleaning channel (110) by the position control device (400), the carrying body (100) is moved toward the predetermined area by the drive device (200) by a standard width. The position control device (400) includes a position control slider (410). The cleaning mounting base (310) and the position control slider (410) are rotatably connected by a control shaft (330). An adjustment device (500) is provided on the inner wall of the position control slider (410). The adjustment device (500) controls the deflection angle of the cleaning mounting base (310) and the cleaning rod (320) to control the cleaning device to move along the entire stroke of the cleaning channel. The cleaning rod has spiral cleaning grooves on its surface. As the cleaning rod rotates, it can continuously clean the sand and mud in the expansion joint. Under the action of the cleaning grooves on the surface, the sand and mud in the expansion joint are loosened and brought to the ground. The drive unit includes an electric wheel assembly that controls the movement of the load-bearing body along the length or width direction, and a hydraulic lifting system that controls the overall up and down movement of the electric wheel assembly. The side wall of the cleaning mounting base (310) is also provided with an atomizing spray device (600) located above the cleaning rod (320), and the side wall of the position control slider (410) is provided with a control component (700) sleeved on the outside of the control shaft (330). The atomizing spray device (600) sprays water mist towards the control shaft (330), and the control component (700) adjusts the amount of water mist sprayed according to the deflection angle of the control shaft (330).

2. The road expansion joint cleaning apparatus of claim 1, wherein, The supporting body (100) also includes a splicing support frame (120) and an integrally formed support panel (130). The support panel (130) is installed on the upper end of the splicing support frame (120) and is bent. The vertex and edge of the middle surface of the support panel (130) form a slope line, wherein the slope line and the bottom surface of the splicing support frame (120) form an angle between 3° and 5°.

3. The road expansion joint cleaning apparatus of claim 2, wherein, An L-shaped adjusting seat (312) is fixedly connected to the upper surface of the cleaning mounting base (310). The adjusting device (500) includes an adjusting sleeve (520) and an adjusting screw (530) threadedly connected to the inner wall of the adjusting sleeve (520). The adjusting sleeve (520) is connected to the adjusting seat (312) through the mounting workpiece (510). A second electrical control device (540) for controlling the rotation of the adjusting screw (530) is provided on the inner wall of the position control slider (410).

4. The road expansion joint cleaning equipment according to claim 1, characterized in that, The position control device (400) further includes a position control screw (420) and a guide rod (430), the guide rod (430) passing through the position control slider (410) and sliding relative to it, and the position control screw (420) passing through the position control slider (410) and being threadedly connected to it.

5. The road expansion joint cleaning equipment according to claim 1, characterized in that, The atomizing spray device (600) includes a spray assembly (610), a pump assembly (620), and a pump cam (630). The pump cam (630) is fixedly connected to the cleaning rod (320). During the rotation of the pump cam (630), it intermittently squeezes the pump assembly (620) to allow water mist to be sprayed out from the spray assembly (610). The pump assembly (620) includes a pump mounting box (621). The inner wall of the pump mounting box (621) is provided with an elastic first pump air bladder (622). The outer side of the first pump air bladder (622) is provided with a pump baffle (625) that slides relative to the inner wall of the pump mounting box (621). The pump baffle (625) is located on the rotation path of the pump cam (630).

6. The road expansion joint cleaning equipment according to claim 5, characterized in that, The pump mounting box (621) is also provided with a second pump air bag (624). A pump partition (623) is provided between the second pump air bag (624) and the first pump air bag (622). The control component (700) includes a control box (710). A first control partition (711) is fixedly provided on the inner wall of the control box (710). The control shaft (330) passes through the control box (710) and a second control partition (331) located inside the control box (710) is fixedly provided on its surface. An elastic control air bag (720) is provided between the first control partition (711) and the second control partition (331). The control air bag (720) is connected to the second pump air bag (624).

7. A method of cleaning a road expansion joint, characterized by, Using the road expansion joint cleaning equipment according to any one of claims 1-6 includes the following steps: S1. Place the load-bearing body (100) on one side of the expansion joint on the road surface, so that the cleaning channel (110) corresponds to the position of the expansion joint; S2. Adjust the cleaning rod (320) to a suitable deflection angle according to the depth of the expansion joint. After adjustment, control the cleaning rod (320) to rotate to complete the cleaning of the expansion joint. S3. The cleaning rod (320) is controlled to move linearly along the cleaning channel (110) by the position control device (400) to complete the continuous cleaning of the expansion joint covered under the bearing body (100); S4. After the expansion joint in the area is cleaned, the load-bearing body (100) is controlled by the drive device (200) to move along the direction of the expansion joint, moving one standard width to the predetermined area, and the expansion joint is cleaned again by the cleaning rod (320).

8. Use of a road expansion joint cleaning apparatus on a highway, characterized in that, The cleaning device described in any one of claims 1-6 is placed on one side of the emergency lane of the highway, and the cleaning channel (110) is aligned with the position of the expansion joint to be cleaned. The cleaning rod (320) is controlled by the position control device (400) to move along the cleaning channel (110) to complete the cleaning of the expansion joint. The cleaning device is laser-positioned on the outside of the road using a laser device, and the cleaning device is controlled by the drive device (200) to move along the expansion joint toward the inside to complete the continuous cleaning of the expansion joint on the highway surface.

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