A cleaning device for repairing a bridge expansion joint

Abstract

The application relates to the technical field of bridge expansion joint maintenance, and discloses a cleaning device for bridge expansion joint maintenance, which comprises a cleaning support, a dust suction box is arranged in the cleaning support, a group of telescopic arms are symmetrically arranged on the two side outer walls of the dust suction box, springs are arranged on the telescopic arms, movable ends of the telescopic arms extend to the outside of the springs and are connected with auxiliary pulleys for supporting, a group of cleaning frames are equidistantly arranged at the bottom of the cleaning support, and movable hard brushes and soft brushes are arranged at the bottom of the cleaning frame. The hard brushes and the soft brushes are driven by the cleaning frame to remove impurities and surface dust in the expansion joint in a combination of rigidity and flexibility; the electric push rod linkage connecting piece can flexibly adjust the angle of the brush, fit different-shaped gaps and clean without dead angles. The dust suction box is matched with a dust suction hole through a suction pipe to clean and suck dust simultaneously, so that dust pollution is avoided. The telescopic arms and the spring supporting auxiliary pulleys can adaptively fit the inner wall of the expansion joint and guarantee stable operation of the device.

Description

Technical Field

[0001] This application relates to the field of bridge expansion joint maintenance technology, and in particular to a cleaning device for bridge expansion joint maintenance. Background Technology

[0002] Bridge expansion joints, as critical components of bridge structures, are subjected to the impact of vehicle loads and natural environmental erosion over long periods. They are prone to accumulating impurities such as mud, gravel, and oil, which not only affect the normal function of the expansion joints but also accelerate the aging of the bridge structure and threaten traffic safety. Traditional cleaning methods rely heavily on manual labor using tools such as shovels and brooms, which is labor-intensive and extremely inefficient. These methods are also ineffective at completely removing stubborn impurities embedded in the joints, leaving cleaning dead zones.

[0003] While some mechanical cleaning equipment can improve efficiency, it has many limitations: single-function sweeping equipment can only handle surface dust and cannot reach deep into crevices; high-pressure washing equipment can remove dirt, but it easily causes sewage to overflow, polluting the surrounding environment and potentially accelerating the aging of components such as expansion joint rubber strips. In addition, existing equipment generally lacks adaptive adjustment capabilities, making it difficult to adapt to expansion joints of different widths and shapes. When the bridge surface is uneven, the equipment operates with poor stability, and the cleaning effect is greatly reduced.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the issue that single-function cleaning equipment can only handle surface dust and cannot penetrate deep into crevices, and that while high-pressure washing equipment can impact dirt, it easily causes sewage to overflow, polluting the surrounding environment and potentially accelerating the aging of components such as expansion joint rubber strips, this application provides a cleaning device for bridge expansion joint maintenance.

[0006] The technical solution for a bridge expansion joint maintenance cleaning device provided in this application is as follows:

[0007] A cleaning device for bridge expansion joint maintenance includes a cleaning support. A dust collection box is installed inside the cleaning support. A set of telescopic arms are symmetrically arranged on the outer walls of both sides of the dust collection box. A spring is installed on the outer sleeve of the telescopic arm. The movable end of the telescopic arm extends outside the spring and is connected to an auxiliary pulley for support. A set of cleaning frames is installed at equal intervals at the bottom of the cleaning support. Movable hard brushes and soft brushes are respectively provided on both sides of the bottom of the cleaning frames.

[0008] Preferably, a support frame is welded to the outer wall of the cleaning support, a push rod is fixedly mounted on the support frame, and a suction pipe is connected to the outer wall of the cleaning support, the suction pipe being connected to the dust collection box.

[0009] Preferably, a set of motors is fixedly installed at the bottom of the cleaning support, and the output end of the motors is driven by the cleaning frame. A dust suction hole is provided between each two adjacent cleaning frames.

[0010] Preferably, the cleaning rack has symmetrical openings on both sides of its bottom, and the hard brush and soft brush are rotatably connected to the inner wall of the openings.

[0011] Preferably, a connector is fixed at the center of the bottom of the cleaning rack, and electric push rods are provided on both sides of the connector.

[0012] Preferably, both ends of the electric push rod are movably connected to connectors, and the connectors are fixed to the outer walls of the connector head, the hard brush, and the soft brush.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This application utilizes a cleaning frame to drive both hard and soft brushes, employing a combination of firm and gentle brushing to remove impurities and surface dust from expansion joints. An electric push rod linkage allows for flexible adjustment of the brush angle, conforming to different shaped gaps for thorough cleaning. The dust collection box, through a suction pipe and suction port, simultaneously cleans and vacuums, preventing dust pollution. A telescopic arm and spring-supported auxiliary pulleys adaptively conform to the inner wall of the expansion joint, ensuring stable operation and significantly improving the efficiency and quality of bridge expansion joint cleaning, laying a solid foundation for subsequent maintenance work. Attached Figure Description

[0015] Figure 1 This is a front view of a cleaning device for bridge expansion joint maintenance according to an embodiment of the application.

[0016] Figure 2 This is a schematic diagram of the cleaning mechanism in the application embodiment.

[0017] Figure 3 This is a schematic diagram of the structure of the dust collection box in the embodiment of the application.

[0018] Explanation of reference numerals in the attached diagram: 1. Cleaning support; 2. Support frame; 3. Push rod; 4. Vacuum box; 5. Auxiliary pulley; 6. Hard brush; 7. Cleaning frame; 8. Motor; 9. Movable opening; 10. Soft brush; 11. Connector; 12. Electric push rod; 13. Connector; 14. Suction tube; 15. Telescopic arm; 16. Spring. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses a cleaning device for the maintenance of bridge expansion joints. (Refer to...) Figures 1-3The system includes a cleaning support 1, with a dust collection box 4 installed inside. A support frame 2 is welded to the outer wall of the cleaning support 1, and a push rod 3 is fixed on the support frame 2. A suction pipe 14 is connected to the outer wall of the cleaning support 1 and communicates with the dust collection box 4. The suction pipe 14 is used to connect to external vacuuming equipment. The dust collection box 4 is connected to external equipment through the suction pipe 14, and can immediately remove dust and debris during the cleaning process to prevent secondary pollution. A set of telescopic arms 15 is symmetrically arranged on both sides of the outer wall of the dust collection box 4. Springs 16 are installed on the outer sleeve of the telescopic arms 15, and the movable end of the telescopic arms 15 extends outside the springs 16 and is connected to auxiliary pulleys 5 for support. The telescopic arms 15 cooperate with the springs 16 to keep the auxiliary pulleys 5 close to the inner walls of both sides of the expansion joint. When the bridge surface is uneven, the telescopic arms 15 automatically extend and retract to ensure the equipment moves smoothly and prevent the cleaning frame 7 from shaking and causing the brush to shift, thus maintaining the stability of cleaning force and position.

[0021] In this application, a set of cleaning frames 7 are equidistantly installed at the bottom of the cleaning support 1. Movable hard-bristled brushes 6 and soft-bristled brushes 10 are respectively provided on both sides of the bottom of the cleaning frame 7. A set of motors 8 is fixedly installed at the bottom of the cleaning support 1, and the output end of the motors 8 drives the cleaning frame 7. A suction hole is provided between each pair of adjacent cleaning frames 7 to suck up dust generated during the cleaning of expansion joints. The hard-bristled brushes 6 and soft-bristled brushes 10 at the bottom of the cleaning frame 7 work together under the drive of the motors 8. The hard-bristled brushes 6 use their rigidity to break down stubborn impurities in the expansion joints, while the soft-bristled brushes 10 finely treat surface and corner dust, achieving comprehensive cleaning from deep descaling to surface finishing, avoiding the problem of incomplete cleaning by a single brush.

[0022] like Figure 3 As shown, the cleaning rack 7 has symmetrical movable openings 9 on both sides of its bottom. The hard-bristled brush 6 and the soft-bristled brush 10 are rotatably connected to the inner walls of the movable openings 9. A connector 11 is fixed at the center of the bottom of the cleaning rack 7. Electric push rods 12 are provided on both sides of the connector 11. Connecting parts 13 are movably connected to both ends of the electric push rods 12. The connecting parts 13 are fixed to the outer walls of the connector 11, the hard-bristled brush 6, and the soft-bristled brush 10. The electric push rods 12, in conjunction with the connecting parts 13, drive the hard-bristled brush 6 and the soft-bristled brush 10 to rotate around the movable openings 9. The brush contact angle can be adjusted in real time according to the width and curvature of the expansion joint to ensure that the bristles are in close contact with the inner wall of the gap.

[0023] The implementation principle of a cleaning device for bridge expansion joint maintenance in this application embodiment is as follows:

[0024] Before using the equipment, connect the suction pipe 14 to an external vacuum cleaner to prepare for vacuuming operations. During use, the operator holds the push rod 3 on the support frame 2 and pushes the cleaning support 1 along the bridge expansion joint. The cleaning frame 7 at the bottom of the cleaning support 1 rotates under the drive of the motor 8, causing the hard-bristled brush 6 and soft-bristled brush 10, fixed to both sides of the bottom of the cleaning frame 7, to rotate to the appropriate cleaning position. The hard-bristled brush 6, with its strong rigidity, penetrates deep into the expansion joint to powerfully remove stubborn mud, sand, gravel, and other impurities; the soft-bristled brush 10, with its soft bristles, meticulously cleans the surface and corners of the expansion joint, sweeping away residual dust. The combination of the hard and soft brushes achieves comprehensive cleaning of the expansion joint.

[0025] During the cleaning process, the electric push rod 12 is activated, pushing the hard-bristled brush 6 and soft-bristled brush 10 to rotate around the inner wall of the movable opening 9 via the connectors 13 at both ends, flexibly adjusting the angle of the brushes. Based on the actual width and shape of the expansion joint, the fit between the brushes and the expansion joint is precisely adjusted to ensure thorough cleaning without any blind spots. Simultaneously, the suction holes between the cleaning racks 7 are connected to the suction pipe 14 and the dust collection box 4. External vacuuming equipment generates suction, drawing dust, debris, and other contaminants generated during the cleaning process into the dust collection box 4 through the suction holes and suction pipe 14, preventing dust from flying and maintaining a clean working environment.

[0026] In addition, the telescopic arms 15 on both sides of the cleaning support 1, under the action of the spring 16, keep the auxiliary pulleys 5 in close contact with the inner walls of the expansion joint. When encountering uneven surfaces, the telescopic arms 15 extend and retract, and the auxiliary pulleys 5 retract accordingly, maintaining stable operation of the equipment and ensuring that the cleaning frame 7 and brush can continuously and stably clean the inner walls of the expansion joint, improving the cleaning effect and equipment adaptability.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cleaning device for bridge expansion joint maintenance, comprising a cleaning support (1), characterized in that: The cleaning support (1) is equipped with a dust collection box (4). A set of telescopic arms (15) are symmetrically arranged on the outer walls of both sides of the dust collection box (4). A spring (16) is provided on the outer sleeve of the telescopic arm (15). The movable end of the telescopic arm (15) extends to the outside of the spring (16) and is connected to an auxiliary pulley (5) for support. A set of cleaning racks (7) are installed at equal intervals at the bottom of the cleaning support (1). A movable hard brush (6) and a soft brush (10) are respectively provided on the bottom sides of the cleaning rack (7).

2. The cleaning equipment for bridge expansion joint maintenance according to claim 1, characterized in that: The outer wall of the cleaning support (1) is welded with a support frame (2), and a push rod (3) is fixed on the support frame (2). The outer wall of the cleaning support (1) is connected with a suction pipe (14), and the suction pipe (14) is connected to the dust collection box (4).

3. The cleaning equipment for bridge expansion joint maintenance according to claim 1, characterized in that: A set of motors (8) is fixedly installed at the bottom of the cleaning support (1). The output end of the motor (8) is driven by the cleaning frame (7). A dust suction hole is provided between each two adjacent cleaning frames (7).

4. A cleaning device for bridge expansion joint maintenance according to claim 1, characterized in that: The cleaning rack (7) has symmetrical openings (9) on both sides of its bottom. The hard brush (6) and soft brush (10) are rotatably connected to the inner wall of the openings (9).

5. A cleaning device for bridge expansion joint maintenance according to claim 1, characterized in that: The cleaning rack (7) has a connector (11) fixed at the middle of its bottom end, and electric push rods (12) are provided on both sides of the connector (11).

6. A cleaning device for bridge expansion joint maintenance according to claim 5, characterized in that: Both ends of the electric push rod (12) are movably connected to connectors (13), and the connectors (13) are fixed to the outer walls of the connector (11), the hard brush (6) and the soft brush (10).

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