A cleaning device for expansion joint of road construction

By integrating a water tank, water pump, dust collection mechanism, and protective cover into the grout cleaning machine, the problems of dust flying and gravel hazards during grout cleaning are solved, achieving efficient cleaning and safety protection.

CN224299773UActive Publication Date: 2026-05-29浙江顺畅高等级公路养护有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江顺畅高等级公路养护有限公司
Filing Date
2025-06-05
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing joint cleaning machines generate a large amount of dust and flying debris when cleaning expansion joints, affecting air quality and pedestrian safety.

Method used

A cleaning device for expansion joints in road construction was designed, equipped with a water tank, water pump, dust suction mechanism and protective cover. It uses water flow to suppress dust and absorb dust, and the protective cover blocks gravel. Combined with rotating blades, it can efficiently remove debris.

Benefits of technology

It effectively reduces dust, protects pedestrian safety, improves cleaning efficiency, and minimizes the impact on the health of staff.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224299773U_ABST
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Abstract

The utility model relates to road construction technical field, and disclose a kind of expansion joint cleaning device for road construction;Including bottom plate, the top of bottom plate is fixedly connected with engine, the output end of engine left side is fixedly connected with second synchronous wheel, the pivot inside the bottom plate is fixedly connected with first synchronous wheel, first synchronous wheel and second synchronous wheel are connected by synchronous belt transmission, the other end of pivot inside the bottom plate is fixedly connected with rotary piece, the shell on the surface of rotary piece is rotatably connected with protective cover;The utility model can carry out dust-settling treatment to the dust that is raised when expansion joint is cleaned, and auxiliary rotary piece is more efficiently removed viscous dirt, simultaneously, through the setting of protective cover, the broken stone that is hit can be shielded, so as to protect the passerby not being hit by broken stone and causing injury.
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Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a cleaning device for expansion joints in road construction. Background Technology

[0002] Expansion joints, also known as building expansion joints, are structural joints installed at appropriate locations along the construction joint direction of a building or structure to prevent cracks or damage caused by changes in climate temperature (thermal expansion and contraction). Expansion joints divide building components above the foundation, such as walls, floors, and roofs, into two independent parts, allowing the building or structure to expand and contract horizontally along its length.

[0003] When expansion joints are clogged by debris such as mud, fallen leaves, and gravel, they need to be cleaned. Cleaning expansion joints often requires the use of a joint cleaning machine, which generates a lot of dust during cleaning, thus affecting air quality and causing workers to inhale large amounts of dust, affecting their health. When the rotating blades mechanically break up and scrape away debris in the gaps, they can also fly up a lot of gravel, which can easily cause injury to pedestrians ahead. Therefore, we have proposed an expansion joint cleaning device for road construction. Utility Model Content

[0004] The purpose of this utility model is to provide a cleaning device for expansion joints in road construction, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a road construction expansion joint cleaning device, comprising a base plate, an engine fixedly connected to the top of the base plate, a second synchronous pulley fixedly connected to the output end of the engine on the left side, a first synchronous pulley fixedly connected to the rotating shaft inside the base plate, the first synchronous pulley and the second synchronous pulley being connected by a synchronous belt drive, a rotating plate fixedly connected to the other end of the rotating shaft inside the base plate, a protective cover rotatably connected to the outer shell of the rotating plate, a water tank provided on the top of the base plate, a water inlet provided on the top of the water tank, a water pump connected to the water outlet of the water tank, a water pipe connected to the water outlet of the water pump, a fixing block fixedly connected to the water pipe on the front side of the base plate, a dust suction mechanism provided on the left side of the top of the base plate, and a limit mechanism provided on the right side of the top of the base plate.

[0006] Preferably, the vacuuming mechanism includes a collection box, a suction pump is connected to the rear side of the collection box, a vacuum pipe is connected to the other side of the collection box, and the vacuum pipe is a retractable hose, with the other end of the vacuum pipe connected to the inside of the protective cover.

[0007] Preferably, the limiting mechanism includes a spring sleeve rod, which is fixedly connected to the base plate. A spring is fixedly connected inside the spring sleeve rod, and a limiting pin is fixedly connected to the other end of the spring. The left side of the protective cover has a limiting hole that cooperates with the limiting pin, and there are two limiting holes.

[0008] Preferably, the top of the spring sleeve rod is provided with a sliding groove, and the top of the limiting pin is fixedly connected with a paddle, which is slidably connected inside the sliding groove.

[0009] Preferably, the collection box has a collection compartment inside, and the surface of the collection compartment has a handle.

[0010] Preferably, the protective cover is made of a transparent material.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] When cleaning expansion joints, this utility model uses a water tank to pressurize water through a water pump and then delivers it to the cleaning area of ​​the expansion joint through a water pipe. This process can suppress the dust that is raised and help the rotating blades to remove sticky dirt more efficiently. At the same time, the protective cover can shield pedestrians from being hit by flying gravel and thus prevent them from being injured. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the three-dimensional left view structure of this utility model;

[0015] Figure 3 This is a three-dimensional, bottom-view structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the cross-section of the spring sleeve rod in this utility model;

[0017] Figure 5 This utility model Figure 4 A magnified structural diagram of part A in the middle.

[0018] In the diagram: 1. Engine; 2. Base plate; 3. First synchronous pulley; 4. Second synchronous pulley; 5. Dust suction mechanism; 51. Collection box; 52. Air pump; 53. Dust suction pipe; 6. Water tank; 7. Protective cover; 8. Paddle; 9. Limiting mechanism; 91. Spring sleeve; 92. Limiting pin; 93. Spring; 94. Limiting hole; 10. Water pump; 11. Slide groove; 12. Collection box; 13. Water pipe; 14. Rotating vane; 15. Water inlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 As shown, a road construction expansion joint cleaning device includes a base plate 2. An engine 1 is fixedly connected to the top of the base plate 2. A second synchronous pulley 4 is fixedly connected to the output end of the left side of the engine 1. A first synchronous pulley 3 is fixedly connected to the rotating shaft inside the base plate 2. The first synchronous pulley 3 and the second synchronous pulley 4 are connected by a synchronous belt drive. A rotating plate 14 is fixedly connected to the other end of the rotating shaft inside the base plate 2. A protective cover 7 is rotatably connected to the outer shell on the surface of the rotating plate 14. A water tank 6 is provided on the top of the base plate 2. A water inlet 15 is provided on the top of the water tank 6. A water pump 10 is connected to the outlet of the water tank 6. A water pipe 13 is connected to the outlet of the water pump 10. A fixing block on the front side of the base plate 2 is fixedly connected to the water pipe 13. A dust suction mechanism 5 is provided on the left side of the top of the base plate 2. A limit mechanism 9 is provided on the right side of the top of the base plate 2.

[0021] The vacuuming mechanism 5 includes a collection box 51, with an air pump 52 connected to the rear side of the collection box 51 and a vacuum pipe 53 connected to the other side of the collection box 51. The vacuum pipe 53 is a retractable hose, and the other end of the vacuum pipe 53 is connected to the inside of the protective cover 7. With the vacuuming mechanism 5, when the rotating blade 14 is used to clean the expansion joint, the air pump 52 can be turned on to create a negative pressure inside the collection box 51. The dust rolled up is then adsorbed through the vacuum pipe 53 to reduce the dust from flying.

[0022] The limiting mechanism 9 includes a spring sleeve rod 91, which is fixedly connected to the base plate 2. A spring 93 is fixedly connected inside the spring sleeve rod 91, and a limiting pin 92 is fixedly connected to the other end of the spring 93. A limiting hole 94 is provided on the left side of the protective cover 7 to cooperate with the limiting pin 92. There are two limiting holes 94. With the setting of the limiting mechanism 9, when the protective cover 7 needs to rotate to block the flying gravel, the limiting pin 92 can be inserted into the limiting hole 94 to fix and limit the rotation angle of the protective cover 7.

[0023] The top of the spring sleeve rod 91 is provided with a sliding groove 11, and the top of the limiting pin 92 is fixedly connected with a lever 8. The lever 8 is slidably connected inside the sliding groove 11. Through the setting of the sliding groove 11 and the lever 8, it is convenient for the staff to apply force to push the lever 8 and drive the limiting pin 92 to move together, so that the limiting pin 92 can enter the limiting hole 94 or disengage from the limiting hole 94.

[0024] The collection box 51 is equipped with a collection box 12 inside, and the surface of the collection box 12 is equipped with a handle. The collection box 12 is used to collect the dust and gravel adsorbed by the vacuum tube 53, which facilitates regular cleaning and maintenance of the collection box 51 and ensures its normal operation.

[0025] The protective cover 7 is made of transparent material, which makes it easier for staff to observe the cleaning status of the expansion joints more intuitively when cleaning them.

[0026] Working principle: Before cleaning the expansion joint, adjust the height of the wheels at the bottom of the base plate 2 according to the depth of the expansion joint, thereby adjusting the height of the rotating plate 14. Then, align the rotating plate 14 with the expansion joint, and then move the lever 8 to disengage the limiting pin 92 from the limiting hole 94. Next, rotate the protective cover 7 downwards until the other limiting hole 94 aligns with the limiting pin 92. Then, release the lever 8. Due to the elastic force of the spring 93, the limiting pin 92 will return to the limiting hole 94. Then, start the engine 1. The output end of the left side of the engine 1 drives the second synchronous pulley 4 to rotate, which is transmitted through the synchronous belt. The machine moves, which in turn drives the first synchronous wheel 3 on the inner shaft of the base plate 2 to rotate, thereby causing the rotating plate 14 at the other end of the shaft to rotate at high speed. The rotating plate 14 crushes and scrapes away the debris in the gap through mechanical force. Then, the water pump 10 is turned on, and the water pump 10 delivers water from the water tank 6 through the water pipe 13. The water flow can moisten the debris in the gap and reduce dust, while also assisting the rotating plate 14 to remove sticky dirt more efficiently. At the same time, the air pump 52 is turned on when the water pump 10 is turned on, which creates negative pressure inside the collection box 51. The dust and fine particles rolled up are adsorbed through the dust suction pipe 53 to reduce the flying of dust.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road construction expansion joint cleaning device, comprising a base plate (2), characterized in that: An engine (1) is fixedly connected to the top of the base plate (2). A second synchronous pulley (4) is fixedly connected to the output end on the left side of the engine (1). A first synchronous pulley (3) is fixedly connected to the rotating shaft inside the base plate (2). The first synchronous pulley (3) and the second synchronous pulley (4) are connected by a synchronous belt drive. A rotating plate (14) is fixedly connected to the other end of the rotating shaft inside the base plate (2). A protective cover (7) is rotatably connected to the outer shell on the surface of the rotating plate (14). A water tank (6) is provided on the top of the base plate (2). A water inlet (15) is provided on the top of the water tank (6). A water pump (10) is connected to the outlet of the water tank (6). A water pipe (13) is connected to the outlet of the water pump (10). A fixing block on the front side of the base plate (2) is fixedly connected to the water pipe (13). A dust suction mechanism (5) is provided on the left side of the top of the base plate (2). A limit mechanism (9) is provided on the right side of the top of the base plate (2).

2. The road construction expansion joint cleaning device according to claim 1, characterized in that: The vacuuming mechanism (5) includes a collection box (51), the rear side of which is connected to an air pump (52), and the other side of which is connected to a vacuum pipe (53). The vacuum pipe (53) is a retractable hose, and the other end of the vacuum pipe (53) is connected to the inside of the protective cover (7).

3. The road construction expansion joint cleaning device according to claim 1, characterized in that: The limiting mechanism (9) includes a spring sleeve rod (91), which is fixedly connected to the base plate (2). A spring (93) is fixedly connected inside the spring sleeve rod (91), and a limiting pin (92) is fixedly connected to the other end of the spring (93). A limiting hole (94) is provided on the left side of the protective cover (7) to cooperate with the limiting pin (92), and there are two limiting holes (94).

4. A road construction expansion joint cleaning device according to claim 3, characterized in that: The top of the spring sleeve (91) is provided with a groove (11), and the top of the limiting pin (92) is fixedly connected with a paddle (8), and the paddle (8) is slidably connected inside the groove (11).

5. A road construction expansion joint cleaning device according to claim 2, characterized in that: The collection box (51) is provided with a collection box (12) inside, and the surface of the collection box (12) is provided with a handle.

6. A road construction expansion joint cleaning device according to claim 1, characterized in that: The protective cover (7) is made of transparent material.