Automatic cleaning device for highway bridge expansion joint

Abstract

The utility model discloses a highway bridge expansion joint automatic cleaning device concretely relates to highway bridge maintenance technical field. The utility model discloses a highway bridge expansion joint automatic cleaning device, including the base, the left and right sides of base all rotatoryly connected with the drive wheel, the top of base is fixedly connected with the mounting bracket, the top of mounting bracket is fixedly connected with the top cover, the top cover's below is fixedly connected with the cleaning mechanism, the mounting bracket is fixedly connected with the dust collecting mechanism behind the cleaning mechanism, the utility model discloses through the extension drive cleaning mechanism lifting of electric push rod no.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge maintenance, and in particular to an automatic cleaning device for highway bridge expansion joints. Background Technology

[0002] Expansion joints on highway bridges are an important component of the bridge structure. Being exposed to the outdoor environment for extended periods, they are prone to accumulating mud, gravel, and other debris. If this debris is not cleaned promptly, it will affect the normal expansion and contraction function of the expansion joints, thereby impacting the stability and service life of the bridge structure.

[0003] Traditional cleaning methods rely heavily on manual labor, requiring people to insert tools such as hooks, brooms, and vacuum cleaners deep into the expansion joints to clean debris section by section. Since expansion joints are mostly long and narrow, the space for manual operation is limited. At the same time, traditional cleaning tools can only be used for expansion joints of a single width. If a bridge has multiple expansion joints of different widths, multiple sets of tools need to be changed. Utility Model Content

[0004] The main purpose of this utility model is to provide an automatic cleaning device for highway bridge expansion joints, which can effectively solve the problems of high labor intensity and low applicability of cleaning tools in manual cleaning.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic cleaning device for expansion joints of highway bridges includes a base, with drive wheels rotatably connected to both the left and right sides of the base, a mounting frame fixedly connected to the top of the base, a top cover fixedly connected to the top of the mounting frame, a cleaning mechanism fixedly connected to the bottom of the top cover, and a dust collection mechanism fixedly connected to the mounting frame behind the cleaning mechanism.

[0007] Preferably, the dust collection mechanism includes a dust collection chamber shell, which is fixedly connected to a mounting frame. A first filter screen is fixedly connected to the mounting frame at the front of the dust collection mechanism. The dust collection chamber shell has a dust collection chamber behind the first filter screen and a drain door is rotatably connected to the side of the dust collection chamber. The dust collection chamber shell has an air outlet at the rear of the dust collection chamber and a second filter screen is fixedly connected to the front of the air outlet. A negative pressure fan is fixedly connected to the rear of the air outlet of the dust collection chamber.

[0008] Preferably, the cleaning mechanism includes a fixed beam, which is fixedly connected to the top cover. Both ends of the fixed beam are rotatably connected to hinged arms. Each of the two hinged arms is fixedly connected to an electric push rod, and the other end of each of the two electric push rods is fixedly connected to a connecting seat.

[0009] Preferably, the cleaning mechanism includes a linkage frame, with its front and rear ends respectively rotatably connected to a connecting seat. Guide rods are slidably connected to the linkage frame below the two connecting seats. Slide groove rotating seats are fixedly connected to the left and right ends of the two guide rods. Slide grooves are provided on the outer sides of the two slide groove rotating seats of the mounting frame. Pins are provided on the outer sides of the two slide groove rotating seats and are slidably connected to the slide grooves of the mounting frame.

[0010] Preferably, guide rod 2 and guide rod 3 are fixed between the two chute rotating seats. A fixed scraper is fixedly connected to the outer side of guide rod 2, and a movable scraper is slidably connected to the outer side of guide rod 3. A slider 2 is fixedly connected to the end of the movable scraper away from the fixed scraper. The slider 2 is slidably connected to guide rod 2. An electric push rod 2 is fixedly connected to the other end of slider 2. The other end of electric push rod 2 is fixedly connected to the chute rotating seat.

[0011] Preferably, a slider is fixedly connected to the outer side of the fixed scraper, the slider is slidably connected to the movable scraper, and a limit block is fixedly connected to the end of the fixed scraper away from the movable scraper.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model provides an automatic cleaning device for expansion joints of highway bridges. This utility model realizes automatic movement along the expansion joint through the drive wheels on both sides of the base. Combined with the mechanized scraper of the cleaning mechanism and the automated filtration of the dust collection mechanism, it can realize unmanned continuous cleaning, shorten the operation time, and reduce the intensity of manual labor.

[0014] 2. This utility model provides an automatic cleaning device for highway bridge expansion joints. This utility model uses the extension and retraction of an electric push rod to drive the cleaning mechanism to rise and fall, adapting to expansion joints of different depths; and uses an electric push rod to drive a slider to slide, adjusting the unfolded width of the fixed scraper and the movable scraper. At the same time, by adjusting the difference in the extension length of the electric push rod, the tilt angle of the scraper can be changed, making it compatible with expansion joints of different widths. It can complete the cleaning of multiple specifications without replacing parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the cleaning device of this utility model;

[0016] Figure 2 This is a schematic diagram of the dust collection mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;

[0018] Figure 4This is a schematic diagram of the width adjustment structure of the scraper of this utility model;

[0019] Figure 5 This is a schematic diagram of the anti-rotation and limiting structure of the scraper of this utility model.

[0020] In the diagram: 1. Base; 2. Drive wheel; 3. Dust collection mechanism; 4. Cleaning mechanism; 5. Mounting frame; 6. Top cover; 31. Drain door; 32. Filter screen one; 33. Dust collection chamber shell; 34. Filter screen two; 35. Negative pressure fan; 41. Fixed beam; 42. Hinge arm; 43. Electric push rod one; 44. Connecting seat; 45. Slide rotating seat; 46. Guide rod one; 47. Linkage frame; 48. Electric push rod two; 49. Fixed scraper; 410. Guide rod two; 411. Movable scraper; 412. Guide rod three; 413. Slider one; 414. Limit block; 415. Slider two. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 As shown, this utility model provides an automatic cleaning device for highway bridge expansion joints, including a base 1. Drive wheels 2 are rotatably connected to both the left and right sides of the base 1. An installation frame 5 is fixedly connected to the top of the base 1. A top cover 6 is fixedly connected to the top of the installation frame 5. A cleaning mechanism 4 is fixedly connected to the bottom of the top cover 6. A dust collection mechanism 3 is fixedly connected to the rear of the cleaning mechanism 4 on the installation frame 5. The installation frame 5 supports the cleaning mechanism 4 and the dust collection mechanism 3. The top cover 6 fixed on the top of the installation frame 5 not only seals the dust collection mechanism 3 to prevent dust leakage, but also reinforces the fixing beam 41 of the cleaning mechanism 4. After the drive wheels 2 rotatably connected to the left and right sides of the base 1 are started, they can drive the entire device to move along the expansion joint.

[0023] like Figure 2As shown, this utility model provides an automatic cleaning device for expansion joints of highway bridges. The dust collection mechanism 3 includes a dust collection chamber shell 33, which is fixedly connected to a mounting frame 5. A filter screen 32 is fixedly connected to the front of the dust collection mechanism 3 on the mounting frame 5. The dust collection chamber shell 33 has a dust collection chamber behind the filter screen 32 and a drain door 31 is rotatably connected to the side of the dust collection chamber. An air outlet is opened at the rear of the dust collection chamber on the dust collection chamber shell 33, and a second filter screen 3 is fixedly connected to the front of the air outlet. 4. A negative pressure fan 35 is fixedly connected to the rear of the dust collection chamber shell 33. When the negative pressure fan 35 is started, it will generate negative pressure in the dust collection chamber, which will draw in the dust-containing air from the outside through the filter screen 32 fixed in front of the mounting frame 5. The filter screen 32 can intercept large particles in the air and prevent them from entering the dust collection chamber and blocking the passage. After passing through the filter screen 32, fine dust enters the dust collection chamber and is then intercepted by the filter screen 34 fixed in front of the dust collection chamber outlet, and finally remains in the dust collection chamber.

[0024] like Figure 3 As shown, this utility model provides an automatic cleaning device for expansion joints of highway bridges. The cleaning mechanism 4 includes a fixed beam 41, which is fixedly connected to the top cover 6. The front and rear ends of the fixed beam 41 are rotatably connected to hinged arms 42. Electric push rods 43 are fixedly connected to the lower ends of the two hinged arms 42. Connecting seats 44 are fixedly connected to the other ends of the two electric push rods 43. The cleaning mechanism 4 includes a linkage frame 47, which is rotatably connected to a connecting seat 44 at its front and rear ends. Guide rods 46 are slidably connected to the linkage frame 47 below the two connecting seats 44. Slide groove rotating seats 45 are fixedly connected to the left and right ends of the two guide rods 46. The mounting frame 5 has slide grooves on the outer side of the two slide groove rotating seats 45. Pins are provided on the outer side of the two slide groove rotating seats 45 and are slidably connected to the slide grooves of the mounting frame 5. The two electric push rods 43 control the up and down movement of the connecting seats 44, thereby driving the linkage frame 47, which is rotatably connected to the connecting seats 44, to rise and fall synchronously, realizing the raising and lowering of the scraper.

[0025] like Figure 4As shown, this utility model provides an automatic cleaning device for expansion joints of highway bridges. A guide rod 2 410 and a guide rod 3 412 are fixed between two sliding groove rotating seats 45. A fixed scraper 49 is fixedly connected to the outer side of the guide rod 2 410, and a movable scraper 411 is slidably connected to the outer side of the guide rod 3 412. A slider 2 415 is fixedly connected to the end of the movable scraper 411 away from the fixed scraper 49. The slider 2 415 is slidably connected to the guide rod 2 410. An electric push rod 2 48 is fixedly connected to the other end of the slider 2 415. The other end of the electric push rod 2 48 is fixedly connected to the sliding groove rotating seat 45. When the electric push rod 2 48, which is fixedly connected to the sliding groove rotating seat 45, is activated, the electric push rod 2 48 will push the slider 2 415, which is fixed at its other end, to slide along the guide rod 2 410. The slider 2 415 is fixedly connected to the movable scraper 411, thus causing the movable scraper 411 to move closer to or further away from the fixed scraper 49 along the guide rod 3 412, thereby changing the unfolding width of both.

[0026] like Figure 5 As shown, this utility model provides an automatic cleaning device for expansion joints of highway bridges. A slider 413 is fixedly connected to the outer side of the fixed scraper 49. The slider 413 is slidably connected to the movable scraper 411. A limit block 414 is fixedly connected to the end of the fixed scraper 49 away from the movable scraper 411. The slider 413 restricts the relative rotation between the fixed scraper 49 and the movable scraper 411, allowing only the two to slide along the slider 413, ensuring that the scraper always remains parallel and fits against the side wall of the expansion joint when the width or angle is adjusted.

[0027] The working principle of this automatic cleaning device for highway bridge expansion joints will be explained in detail below.

[0028] like Figure 1-5As shown, the base 1 of the device provides the installation foundation for the overall structure. After the drive wheels 2, which are rotatably connected to its left and right sides, are started, they drive the base 1 and the mounting frame 5, cleaning mechanism 4, and dust collection mechanism 3 above it to move at a constant speed along the length of the expansion joint. Continuous cleaning can be completed without manual pushing. The fixed beam 41 of the cleaning mechanism 4 is fixedly connected to the top cover 6, providing support for the entire cleaning execution component. When the electric push rods 43 below the hinged arms 42, which are rotatably connected to the front and rear ends of the fixed beam 41, are started, the two electric push rods 43 extend or retract simultaneously, pushing the connecting seat 44, which is fixedly connected to its other end, to move up and down. This, in turn, drives the linkage frame 47, which is rotatably connected to the connecting seat 44, to rise and fall synchronously. Ultimately, the fixed scraper 49 and the movable scraper 411 below the linkage frame 47 extend into or leave the expansion joint, adapting to the cleaning needs of expansion joints of different depths. When it is necessary to tilt the fixed scraper 49 and the movable scraper 411, the extension length of the two electric push rods 43 is adjusted. The difference can change the tilt angle of the linkage frame 47. At this time, the guide rod 46, which is slidably connected to the lower part of the linkage frame 47, will drive the slide groove rotating seat 45, which is fixedly connected to its left and right ends, to move synchronously. The pin on the outside of the slide groove rotating seat 45 slides along the slide groove on the mounting frame 5, and the slide groove rotating seat 45 can rotate around the pin, providing freedom for the angle adjustment of the linkage frame 47. At the same time, the guide rod 410 and guide rod 412, which are fixed between the two slide groove rotating seats 45, form a stable support for the fixed scraper 49 and the movable scraper 411. The slider 413 between the fixed scraper 49 and the movable scraper 411 restricts their relative rotation and only allows them to slide along the slider 413, ensuring that the fixed scraper 49 and the movable scraper 411 can tilt synchronously when the slide groove rotating seat 45 rotates. When facing expansion joints of different widths, the electric push rod 48 is activated. One end of the electric push rod 48 is fixedly connected to the slide groove rotating seat 45, and the other end drives the slider 415 to slide along the guide rod 410.Slider 2 415 is fixedly connected to movable scraper 411, and movable scraper 411 is slidably connected to guide rod 3 412. Driven by slider 2 415, movable scraper 411 will move closer to or further away from fixed scraper 49, thereby adjusting the unfolding width of both to adapt to expansion joints of different specifications. Limiting block 414 on fixed scraper 49 can prevent movable scraper 411 from getting too close and causing structural collision, ensuring the safety of the adjustment process. When the device moves along the expansion joint, the tilted fixed scraper 49 and movable scraper 411 push large particles of debris such as mud, sand, and gravel in the expansion joint to the side wall. Then, the linkage frame 47 is raised by electric push rod 1 43, and the scraper, carrying debris, is pulled out of the expansion joint along the side wall, completing the mechanical cleaning of large particles of debris. While cleaning, the negative pressure fan 35 in the dust collection mechanism 3 starts, generating negative pressure suction to draw air from outside the dust collection chamber shell 33 through the filter screen 32 fixedly connected to the front of the mounting frame 5. The filter screen 32 intercepts large particles of debris in the air, preventing them from entering the dust collection chamber and causing blockage. Fine dust passes through the filter screen 32 and is intercepted in the dust collection chamber by the filter screen 34 fixedly connected to the front of the dust collection chamber outlet, thus separating dust from air. After cleaning, the drain door 31, which is rotatably connected to the side of the dust collection chamber, is opened to centrally clean the debris in the dust collection chamber. The top cover 6 is fixed above the mounting frame 5, which not only provides a sealing and protection function for the dust collection mechanism 3 to prevent dust leakage and rainwater intrusion, but also further fixes the fixing beam 41 of the cleaning mechanism 4.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for expansion joints of highway bridges, comprising a base (1), characterized in that: The base (1) has drive wheels (2) rotatably connected to both sides. A mounting bracket (5) is fixedly connected to the top of the base (1). A top cover (6) is fixedly connected to the top of the mounting bracket (5). A cleaning mechanism (4) is fixedly connected to the bottom of the top cover (6). A dust collection mechanism (3) is fixedly connected to the rear of the cleaning mechanism (4) of the mounting bracket (5). The dust collection mechanism (3) includes a dust collection chamber shell (33). The dust collection chamber shell (33) and the mounting bracket (5) are connected together. The mounting bracket (5) is fixedly connected to a filter screen (32) in front of the dust collection mechanism (3). The dust collection chamber shell (33) has a dust collection chamber behind the filter screen (32) and a drain door (31) is rotatably connected to the side of the dust collection chamber. The dust collection chamber shell (33) has an air outlet at the rear of the dust collection chamber and a filter screen (34) is fixedly connected in front of the air outlet. The dust collection chamber shell (33) has a negative pressure fan (35) fixedly connected behind the air outlet of the dust collection chamber.

2. The automatic cleaning device for highway bridge expansion joints according to claim 1, characterized in that: The cleaning mechanism (4) includes a fixed beam (41), which is fixedly connected to the top cover (6). Both ends of the fixed beam (41) are rotatably connected to hinge arms (42). Electric push rods (43) are fixedly connected to the bottom of the two hinge arms (42), and connecting seats (44) are fixedly connected to the other ends of the two electric push rods (43).

3. The automatic cleaning device for highway bridge expansion joints according to claim 2, characterized in that: The cleaning mechanism (4) includes a linkage frame (47), the front and rear ends of the linkage frame (47) are rotatably connected to a connecting seat (44) respectively, and the linkage frame (47) is slidably connected to a guide rod (46) below the two connecting seats (44). The left and right ends of the two guide rods (46) are fixedly connected to a sliding groove rotating seat (45). The mounting frame (5) has a sliding groove on the outside of the two sliding groove rotating seats (45), and a pin is provided on the outside of the two sliding groove rotating seats (45) and slidably connected to the sliding groove of the mounting frame (5).

4. The automatic cleaning device for highway bridge expansion joints according to claim 3, characterized in that: Guide rod 2 (410) and guide rod 3 (412) are fixed between the two slide groove rotating seats (45). A fixed scraper (49) is fixedly connected to the outer side of guide rod 2 (410), and a movable scraper (411) is slidably connected to the outer side of guide rod 3 (412). A slider 2 (415) is fixedly connected to one end of the movable scraper (411) away from the fixed scraper (49). The slider 2 (415) is slidably connected to guide rod 2 (410). An electric push rod 2 (48) is fixedly connected to the other end of slider 2 (415). The other end of electric push rod 2 (48) is fixedly connected to slide groove rotating seat (45).

5. The automatic cleaning device for highway bridge expansion joints according to claim 4, characterized in that: A slider (413) is fixedly connected to the outside of the fixed scraper (49). The slider (413) is slidably connected to the movable scraper (411). A limit block (414) is fixedly connected to the end of the fixed scraper (49) away from the movable scraper (411).

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