A maintenance device for highway pavement cracks

By combining high-pressure water jet flushing and a scraping mechanism, the problem of removing stubborn impurities from road surface cracks is solved, achieving a clean and smooth crack surface and ensuring the adhesion and smoothness of the repair material.

CN224314014UActive Publication Date: 2026-06-02烟台博坤建设工程有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
烟台博坤建设工程有限公司
Filing Date
2025-07-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies cannot effectively remove stubborn impurities from cracks in highway pavements, causing impurities to mix into the adhesive during the grouting process, thus reducing the bonding strength.

Method used

A cleaning mechanism is used for high-pressure water rinsing and drying, combined with a scraping mechanism to automatically remove excess colloid, ensuring that the crack surface is clean and smooth.

Benefits of technology

Thoroughly remove debris and moisture from the cracks to improve the adhesion between the repair material and the crack walls, and ensure the smoothness of the adhesive surface.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224314014U_ABST
    Figure CN224314014U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of maintenance devices for highway pavement crack. The aforementioned maintenance device includes bottom plate, the push rod is fixed in bottom plate both sides, and bottom plate top is provided with cleaning mechanism, is stored with the storage container of canned glue, and connecting box is set in connecting box with scraping mechanism. Discharge pump is arranged on storage container, and discharge pump discharge end is equipped with nozzle I, and nozzle I penetrates bottom plate top. The cleaning mechanism includes water tank, and the water pump fixed with bottom plate, and the water outlet pipe that is connected with the water outlet end of water pump, cylinder, nozzle II, counterweight ball and heating rod. The utility model can flush and dry highway crack, completely remove sundries and moisture in crack, ensure the adhesion of repair material and crack wall, in addition, can be self-adapting to the transverse slope of road, and the flatness of colloid is improved by scraping redundant colloid.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of road maintenance technology, and in particular to a maintenance device for road surface cracks. Background Technology

[0002] Highway pavement crack maintenance devices are specialized equipment used to treat various types of cracks in highway pavements. They can quickly fill cracks, prevent rainwater infiltration and crack expansion caused by load impact, thereby maintaining the integrity of the pavement structure, extending the service life of the highway, and ensuring the safety and stability of vehicle traffic.

[0003] The utility model patent CN222008597U describes a glue-filling device for treating highway cracks. It uses a blower and a separating grid in a cleaning mechanism to blow out impurities from the cracks, thus preventing impurities from affecting the quality of the glue filling. However, the aforementioned technical solution has the following problems in actual operation:

[0004] Although airflow can remove loose impurities from the surface and surrounding area of ​​cracks, it cannot effectively remove stubborn soil, fine sand, oil stains, etc. attached to the cracks. This results in impurities being mixed into the adhesive during the grouting process, reducing the bonding strength. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a maintenance device for road surface cracks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A maintenance device for road surface cracks includes a base plate with push rods fixed on both sides. A cleaning mechanism, a storage cylinder containing glue, and a connecting box are provided on the top of the base plate. A leveling mechanism is provided inside the connecting box. The cleaning mechanism includes a water pump fixed to the base plate and a water outlet pipe connected to the water outlet of the water pump.

[0008] As a further embodiment of this invention: a discharge pump is installed on the storage cylinder, and a nozzle I is installed at the discharge end of the discharge pump. The nozzle I penetrates the top of the base plate, and a slot is opened on the top of the base plate. The connecting box is located on the corresponding side of the cleaning mechanism, and the storage cylinder is located between the connecting box and the cleaning mechanism.

[0009] As a further embodiment of this utility model, the cleaning mechanism also includes a water tank, a cylinder, a nozzle II, a counterweight ball, and a heating rod.

[0010] As a further embodiment of this utility model: the water tank and the water pump are both fixed to the top of the base plate, the water pump and the water tank are arranged side by side, and the water inlet of the water pump is connected to the water tank through a pipe. The expansion plate is fixed to one side of the base plate, the cylinder is fixed to the top of the expansion plate, and the water outlet pipe passes through the expansion plate and extends into the cylinder.

[0011] As a further improvement of this utility model: the counterweight ball is fixedly connected to the outer wall of the water outlet pipe, and the counterweight ball slides in conjunction with the inner wall of the cylinder.

[0012] As a further improvement of this utility model: the nozzle II is connected to and installed at one end of the water outlet pipe, and the heating rod is fixed to the bottom of the base plate.

[0013] As a further embodiment of this utility model: the scraping mechanism includes a cylinder, a rack, a gear, a connecting seat, a drive rod, a rotating seat, a scraper, an inclined plate, and a spring.

[0014] As a further embodiment of this utility model: the cylinder is fixed to the top of the base plate, the rack is fixed to the output end of the cylinder, the connecting seat is fixed to the top of the base plate, and the connecting seat is located at the top of the slot opened in the base plate. The gear is rotatably connected to one side of the connecting seat, and the gear meshes with the rack.

[0015] As a further embodiment of this utility model: a rotating rod is fixed to the side of the gear facing the connecting seat, and the rotating rod passes through one side of the connecting seat. The driving rod is located on the inner wall of the slot and sleeved on the outer wall of the rotating rod. The rotating seat is fixed to the bottom of the driving rod.

[0016] As a further embodiment of this utility model: the scraper is rotatably connected to both sides of the inner wall of the rotating seat, the inclined plate is fixed to the top of the scraper, one end of the spring is fixed to the inclined surface of the inclined plate, and the other end of the spring is fixedly connected to the drive rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are: it can wash and dry road cracks, thoroughly remove debris and moisture from the cracks, ensure the adhesion between the repair material and the crack wall, and adapt to the transverse slope of the road surface, scrape off excess adhesive and improve the smoothness of the adhesive. Attached Figure Description

[0018] Figure 1 The image shown is a structural view of a maintenance device for road surface cracks proposed in this utility model.

[0019] Figure 2 As shown Figure 1 A sectional view.

[0020] Figure 3 As shown Figure 1 A bottom view.

[0021] Figure 4As shown Figure 2 Exploded view of point A in the middle.

[0022] Figure 5 As shown Figure 3 Enlarged view of point B in the middle.

[0023] Figure 6 As shown Figure 1 Structural view of the leveling mechanism.

[0024] Explanation of main component symbols

[0025] 1. Base plate; 2. Cleaning mechanism; 3. Storage cylinder; 4. Push rod; 5. Connecting box; 6. Scraping mechanism; 7. Nozzle I; 201. Water tank; 202. Water pump; 203. Water outlet pipe; 204. Cylinder; 205. Nozzle II; 206. Counterweight ball; 207. Heating rod; 208. Extension plate; 601. Cylinder; 602. Rack; 603. Gear; 604. Connecting seat; 605. Drive rod; 606. Rotating seat; 607. Scraper; 608. Inclined plate; 609. Spring.

[0026] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below.

[0028] Please see Figure 1-3 This embodiment provides a maintenance device for road surface cracks, which includes a base plate 1, push rods 4 fixed on both sides of the base plate 1, a cleaning mechanism 2, a storage cylinder 3 containing glue, and a connecting box 5 on the top of the base plate 1. The connecting box 5 is located on the corresponding side of the cleaning mechanism 2, and the storage cylinder 3 is located between the connecting box 5 and the cleaning mechanism 2. A discharge pump is installed on the storage cylinder 3, the inlet end of the discharge pump is connected to the storage cylinder 3, and a nozzle I7 is installed on the discharge end of the discharge pump. The nozzle I7 penetrates the top of the base plate 1. A scraping mechanism 6 is provided inside the connecting box 5, and a groove is opened on the top of the base plate 1.

[0029] To clean road surface cracks and expose their original surface to improve material adhesion, please refer to [link to relevant documentation]. Figure 4-5 The cleaning mechanism 2 in this embodiment includes a water tank 201, a water pump 202, a water outlet pipe 203, a cylinder 204, a nozzle II 205, a counterweight ball 206, and a heating rod 207.

[0030] Water tank 201 and water pump 202 are fixed to the top of base plate 1. Water pump 202 and water tank 201 are arranged side by side, and the water inlet of water pump 202 is connected to water tank 201 through a pipe. Expansion plate 208 is fixed to one side of base plate 1. Water outlet pipe 203 is connected to water outlet of water pump 202. Cylinder 204 is fixed to the top of expansion plate 208, and water outlet pipe 203 passes through expansion plate 208 and extends into cylinder 204. Counterweight ball 206 is fixedly connected to the outer wall of water outlet pipe 203, and counterweight ball 206 slides with inner wall of cylinder 204. Nozzle II 205 is fixedly installed at the water outlet of water outlet pipe 203. Heating rod 207 is fixed to the bottom of base plate 1.

[0031] This embodiment can be used to clean highway surfaces. Specifically, water in the water tank 201 is pressurized by the water pump 202 and then delivered to the nozzle II 205 through the water outlet pipe 203. During operation, the water outlet pipe 203 is pulled outward to drive the counterweight ball 206 to slide along the inner wall of the cylinder 204, so that the nozzle II 205 is aligned with the crack. High-pressure water flows through the nozzle II 205 to wash away debris in the crack. After the operation is completed, the water outlet pipe 203 is released. Since the weight of the counterweight ball 206 is greater than the deformation resistance of the water outlet pipe 203, the counterweight ball 206 will drive the water outlet pipe 203 to automatically retract along the cylinder 204 until it returns to its initial position. After rinsing, the device position is adjusted until the heating rod 207 is aligned with the crack. At this time, the residual moisture is removed by heating, exposing the original surface of the crack. Thus, the high-pressure water flow rinsing combined with immediate drying can thoroughly remove debris and moisture from the crack, ensuring the adhesion between the repair material and the crack wall. At the same time, the automatic reset function reduces the manual recycling steps and prevents the water outlet pipe 203 from getting tangled.

[0032] To scrape off excess adhesive and make the adhesive surface flush with the road surface, please refer to [further instructions]. Figure 6 The scraping mechanism 6 in this embodiment includes a cylinder 601, a rack 602, a gear 603, a connecting seat 604, a drive rod 605, a rotating seat 606, a scraper 607, an inclined plate 608, and a spring 609.

[0033] Cylinder 601 is fixed to the top of base plate 1, rack 602 is fixed to the output end of cylinder 601, connecting seat 604 is fixed to the top of base plate 1 and is located at the top of the slot opened in base plate 1, gear 603 is rotatably connected to one side of connecting seat 604 and meshes with rack 602, a rotating rod is fixed to the side of gear 603 facing connecting seat 604 and passes through one side of connecting seat 604, drive rod 605 is located on the inner wall of the slot and sleeved on the outer wall of rotating rod, rotating seat 606 is fixed to the bottom of drive rod 605, scraper 607 is rotatably connected to both sides of the inner wall of rotating seat 606, inclined plate 608 is fixed to the top of scraper 607, one end of spring 609 is fixed to the inclined surface of inclined plate 608 and the other end of spring 609 is fixedly connected to drive rod 605.

[0034] In this embodiment, the rack 602 is driven by the cylinder 601 to perform reciprocating linear motion. Since the rack 602 meshes with the gear 603, the gear 603 rotates around the rotating rod, causing the drive rod 605, which is sleeved on the outer wall of the rotating rod, to rotate synchronously. The reciprocating linear motion of the rack 602, driven by the gear 603, causes the drive rod 605 to perform forward and reverse motion, which in turn causes the scraper 607 to swing, thus smoothing the repaired area of ​​the road surface. If there is a difference in road surface elevation due to subsidence on one side of the base layer, the scraper 607 will rotate slightly around the hinge points on both sides of the inner wall of the rotating seat 606, and the inclined plate 608 will follow suit. The scraper 607 tilts synchronously, causing the spring 609 to stretch or compress. The elastic force of the spring 609 is transmitted to the scraper 607 through the inclined plate 608, ensuring that the bottom surface of the scraper 607 always remains in contact with the road surface. After the scraper 607 is in contact with the road surface, the cylinder 601 is closed. Then, the device is pushed to move along the crack direction, and the scraper 607 scrapes away the excess adhesive filling the crack, making the adhesive surface flush with the road surface. After completing the leveling operation of the current crack section, the cylinder 601 is restarted to drive the rack 602 to move in the opposite direction, causing the gear 603 to rotate the scraper 607 back to the initial storage position, facilitating the transfer of the device to the next work point. This embodiment ensures that the scraper 607 is in contact with the road surface, effectively compensating for the contact gap caused by local unevenness of the road surface, improving the flatness of the adhesive, and its adaptive adjustment capability can adapt to the lateral slope of the road surface to remove excess adhesive.

[0035] The maintenance device in this embodiment is used as follows:

[0036] After the device is pushed to the target position by push rod 4, the crack is first flushed and dried by cleaning mechanism 2 to ensure that there is no moisture residue on the inner wall and surface of the crack. Then, the position of the device is adjusted so that the nozzle I7 connected to the storage cylinder 3 is aligned directly above the dried crack. The internal discharge pump is started to inject the canned adhesive in the storage cylinder 3 into the crack. After the adhesive injection is completed, the device is pushed forward and the scraping mechanism 6 in the connecting box 5 scrapes off the excess adhesive so that the surface of the adhesive is flush with the road surface, and finally the maintenance of the highway road surface is completed.

[0037] In summary, the maintenance device of this embodiment has the following advantages compared with traditional maintenance devices: it can wash and dry road cracks, thoroughly remove debris and moisture from the cracks, ensure the adhesion between the repair material and the crack wall, and adapt to the lateral slope of the road surface, scrape off excess adhesive and improve the smoothness of the adhesive.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A maintenance device for road surface cracks, comprising a base plate (1), characterized in that, Push rods (4) are fixed on both sides of the base plate (1). A cleaning mechanism (2), a storage cylinder (3) containing canned glue, and a connecting box (5) are provided on the top of the base plate (1). A scraping mechanism (6) is provided inside the connecting box (5). The cleaning mechanism (2) includes a water pump (202) fixed to the base plate (1) and a water outlet pipe (203) connected to the water outlet of the water pump (202).

2. The maintenance device for road surface cracks according to claim 1, characterized in that, A discharge pump is installed on the storage cylinder (3), and a nozzle I (7) is installed at the discharge end of the discharge pump. The nozzle I (7) penetrates the top of the bottom plate (1), and a slot is opened at the top of the bottom plate (1). The connecting box (5) is located on the opposite side of the cleaning mechanism (2), and the storage cylinder (3) is located between the connecting box (5) and the cleaning mechanism (2).

3. The maintenance device for road surface cracks according to claim 1, characterized in that, The cleaning mechanism (2) also includes a water tank (201), a cylinder (204), a nozzle II (205), a counterweight ball (206), and a heating rod (207).

4. The maintenance device for road surface cracks according to claim 3, characterized in that, The water tank (201) and the water pump (202) are both fixed to the top of the base plate (1). The water pump (202) and the water tank (201) are arranged side by side, and the water inlet of the water pump (202) is connected to the water tank (201) through a pipe. The expansion plate (208) is fixed to one side of the base plate (1), and the cylinder (204) is fixed to the top of the expansion plate (208). The water outlet pipe (203) passes through the expansion plate (208) and extends into the cylinder (204).

5. The maintenance device for road surface cracks according to claim 4, characterized in that, The counterweight ball (206) is fixedly connected to the outer wall of the water outlet pipe (203), and the counterweight ball (206) slides in fit with the inner wall of the cylinder (204).

6. The maintenance device for road surface cracks according to claim 4, characterized in that, The nozzle II (205) is connected to and installed at one end of the water outlet pipe (203), and the heating rod (207) is fixed to the bottom of the base plate (1).

7. The maintenance device for road surface cracks according to claim 1, characterized in that, The scraping mechanism (6) includes a cylinder (601), a rack (602), a gear (603), a connecting seat (604), a drive rod (605), a rotating seat (606), a scraper (607), an inclined plate (608), and a spring (609).

8. The maintenance device for road surface cracks according to claim 7, characterized in that, The cylinder (601) is fixed to the top of the base plate (1), the rack (602) is fixed to the output end of the cylinder (601), the connecting seat (604) is fixed to the top of the base plate (1), and the connecting seat (604) is located at the top of the slot opened in the base plate (1). The gear (603) is rotatably connected to one side of the connecting seat (604), and the gear (603) meshes with the rack (602).

9. The maintenance device for road surface cracks according to claim 8, characterized in that, The gear (603) has a rotating rod fixed on the side facing the connecting seat (604), and the rotating rod passes through one side of the connecting seat (604). The drive rod (605) is located on the inner wall of the slot and sleeved on the outer wall of the rotating rod. The rotating seat (606) is fixed to the bottom of the drive rod (605).

10. The maintenance device for road surface cracks according to claim 9, characterized in that, The scraper (607) is rotatably connected to both sides of the inner wall of the rotating seat (606), the inclined plate (608) is fixed to the top of the scraper (607), one end of the spring (609) is fixed to the inclined surface of the inclined plate (608), and the other end of the spring (609) is fixedly connected to the drive rod (605).