A quick fixing device for inspection well cover during road asphalt paving construction

Abstract

The utility model discloses a kind of quick fixing devices of inspection manhole cover during road asphalt paving construction, including inspection manhole cover lifting device and filler device;The inspection manhole cover lifting device includes support frame, the support frame is connected with lifting frame, the lower end of the lifting frame is connected with the gripper for clamping inspection manhole cover;The filler device includes arc frame, the cross section of the arc frame is transversely arranged U type, and the inner ring of the arc frame is slidably connected with arc push plate along linear direction.The device can effectively improve construction quality by the cooperation of inspection manhole cover lifting device and filler device, liberate labor.

Description

Technical Field

[0001] This utility model relates to the field of road construction, specifically to a quick fixing device for manhole covers during road asphalt paving construction. Background Technology

[0002] During the asphalt paving process, when the paver encounters a manhole cover, it will directly pave over it, burying the manhole cover under the asphalt. Because asphalt has the characteristic of cooling and solidifying quickly, the workers need to dig out the manhole cover immediately after the paver passes, and fill the space under the manhole cover evenly and fully with asphalt. The road roller then follows to quickly compact the asphalt to achieve a flush effect with the asphalt pavement and ensure construction quality.

[0003] The traditional process involves three workers placing wooden blocks under the crowbars as support points. The three crowbars are arranged in a triangle to pry up the manhole cover. Once the manhole cover is pried up and there is a certain gap between it and the asphalt surface, another three workers use shovels to fill the gap with asphalt mixture to make the manhole cover and the asphalt road surface the same height.

[0004] This construction method has the following disadvantages: 1. Due to differences in the force applied by the three crowbars and the amount of force exerted by the workers, the manhole cover is pried up to inconsistent heights. The side that is pried up higher will have more asphalt mixture inserted, while the side that is pried up lower will have less. This makes it impossible to guarantee a uniform standard, and often requires repeatedly prying up the manhole cover to adjust the amount of asphalt mixture inserted. Even so, unevenness still occurs after compaction, seriously affecting the construction quality.

[0005] 2. Before the manhole cover is filled with asphalt mixture, three workers need to keep prying it up, which greatly increases the workload of the workers. It takes six workers (three workers to hold the manhole cover with a crowbar and three workers to fill it with asphalt mixture) to lift one manhole cover. However, the frequency of fixing the manhole cover does not account for a large proportion of the overall road construction, so it is easy to cause waste of manpower and delay the construction progress. Utility Model Content

[0006] To address the aforementioned problems, this utility model discloses a quick-fixing device for manhole covers during road asphalt paving construction. This device, through the coordinated operation of a manhole cover lifting device and a filling device, can effectively improve construction quality and free up labor.

[0007] A quick-fixing device for manhole covers during road asphalt paving construction includes a manhole cover lifting device and a filling device; the manhole cover lifting device includes a support frame, the support frame is connected to a lifting frame, and the lower end of the lifting frame is connected to a gripper for securing the manhole cover; the filling device includes an arc-shaped frame, the cross-section of the arc-shaped frame is a transverse U-shape, and the inner ring of the arc-shaped frame is slidably connected to an arc-shaped push plate along a straight direction.

[0008] Preferably, the lifting frame includes an electric push rod installed at the top of the support frame, and the lower end of the electric push rod is connected to a gripper.

[0009] Preferably, the lower end of the electric push rod is connected to an adapter ring, and the adapter ring is circumferentially rotatably connected to at least three adjustable-length connecting rods. The lower end of each connecting rod is rotatably connected to a gripper, and the gripper is connected to the connecting rod by a torsion spring.

[0010] Preferably, the connecting rod is a screw-sleeve type threaded connection structure.

[0011] Preferably, a sleeve is connected to the outer side of the arc-shaped frame, and a sliding rod is slidably connected inside the sleeve. The front end of the sliding rod is connected to the outer side of the arc-shaped push plate.

[0012] Preferably, the length of the slide bar is greater than the length of the sleeve.

[0013] Preferably, both the sleeve and the slide rod are arranged horizontally, the end of the sleeve is connected to an upwardly inclined extension rod, and the end of the slide rod away from the arc-shaped push rod is rotatably connected to a drive rod, which is hinged to the extension rod.

[0014] Preferably, the arc-shaped frame and the arc-shaped push plate both have an unfolding angle of 180 degrees.

[0015] Beneficial effects 1. This utility model uses an electric push rod-driven elevator and multiple grabs to lift the manhole cover, and fills it with asphalt material through an arc-shaped frame. This allows for uniform inspection of the manhole cover's prying height, ensuring that the amount of filling material (asphalt mixture) on each side is the same, avoiding material waste and guaranteeing construction quality.

[0016] 2. The old process usually requires 6 people to do this work. With this device, the manhole cover can be lifted and the material can be inserted in one place. Only two workers are needed to complete the work, saving manpower and speeding up the construction progress. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of a manhole cover lifting device; Figure 3 It is the structure of the packing device. Figure 1 ; Figure 4 yes Figure 3 Cross-sectional view; Figure 5 It is the structure of the packing device. Figure 2 ; Figure 6 yes Figure 5 Cross-sectional view; Figure 7 This is a diagram of an arc-shaped push plate structure; In the diagram, 1. Manhole cover lifting device, 1.1. Electric push rod, 1.2. Bracket, 1.3. Adapter ring, 1.4. Connecting rod, 1.5. Torsion spring, 1.6. Handle, 2. Filling device, 2.1. Arc-shaped push plate, 2.2. Arc-shaped frame, 2.3. Sleeve, 2.4. Extension rod, 2.5. Drive rod, 2.6. Handle, 2.7. Slide rod, 3. Manhole cover. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] like Figure 1-7 As shown, this utility model discloses a quick fixing device for manhole covers during road asphalt paving construction. The device includes two parts: a manhole cover lifting device 1 for lifting the manhole cover smoothly and conveniently, and a filling device 2 for quickly filling the manhole cover with asphalt. The two parts work together to achieve the technical effect of quickly and conveniently lifting and fixing the manhole cover.

[0021] The manhole cover lifting device 1 includes a support frame 1.2, which consists of an upper plate and three lower legs. The span of the three legs is greater than the diameter of the manhole cover, and the height of the legs is adjustable to adapt to different operating scenarios. A lifting frame is connected to the support frame 1.2, which includes an electric push rod 1.1, a transition ring 1.3, a connecting rod 1.4, and a gripper 1.6. The electric push rod 1.1 is installed at the center of the upper surface of the plate and extends downward through the plate, meaning the output rod of the electric push rod is located below the plate. The lower end of the output rod is connected to the transition ring 1.3. Three connecting sleeves are evenly distributed around the circumference of the transition ring, and each connecting sleeve is rotatably connected to a connecting rod 1.4. The connecting rod has an adjustable length. A torsion spring 1.5 is installed at the lower end of the connecting rod 1.4, and the gripper 1.6 is connected through the torsion spring. The gripper is a rectangular plate. Through the action of the torsion spring, when the three plates are in a horizontal state, they cooperate to lift the manhole cover from three points.

[0022] The filling device 2 includes an arc-shaped frame 2.2 with a transverse U-shaped cross-section and an arc-shaped push plate 2.1 with a rectangular cross-section. A sleeve 2.3 is connected to the middle of the outer side of the arc-shaped frame 2.2, and a slide rod 2.7 is connected to the middle of the outer side of the arc-shaped push plate 2.1. The slide rod 2.7 is slidably fitted inside the sleeve 2.3 and extends to the outside of the sleeve 2.3. A hinge seat is provided at the end of the slide rod, and a drive rod 2.5 is hinged to the hinge seat. An upwardly inclined extension rod 2.4 is connected to the end of the sleeve 2.3. The middle part of the drive rod 2.5 is hinged to the middle part of the extension rod 2.4, and a handle 2.6 is provided at the end of the extension rod 2.4 for easy gripping.

[0023] The device operates as follows: After the paver passes the manhole cover, one worker sets up the manhole cover lifting device 1 above the manhole cover 3, inserts the three grippers 1.6 from the side under the manhole cover, and then starts the electric push rod 1.1, which lifts the manhole cover 3. Another worker places the filling device 2 containing asphalt material under the manhole cover 3, and pulls the upper end of the drive rod 2.5 backward. The lower end of the drive rod 2.5 pushes the slide rod 2.7 forward, which in turn pushes the arc-shaped push plate 2.1 forward, pushing the asphalt material in the arc-shaped frame 2.2 out and filling the space under the manhole cover.

[0024] As a preferred solution, the unfolding angle of both the arc-shaped frame 2.2 and the arc-shaped push plate 2.1 is set to 180 degrees, allowing one worker to complete the filling of asphalt material under the entire manhole cover in just two passes.

[0025] As a preferred option, both the outrigger and the connecting rod 1.4 are designed as a combination of screw and sleeve. By changing the connection length of the combined part, the overall length can be changed. The length of the outrigger is variable, which can adapt to different working scenarios. The length of the connecting rod is variable, which can easily adjust the manhole cover to a horizontal position.

[0026] The number of connecting rods and outriggers can be set to four or six as needed. Since the lower end of the outrigger is also on a circumference, and the diameter of the circumference is larger than the diameter of the manhole cover, and there are no other connecting parts between adjacent outriggers, the presence of the outriggers will not cause interference when the arc-shaped frame is placed under the manhole cover.

[0027] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A quick-fixing device for manhole covers during road asphalt paving construction, characterized in that, The device includes a manhole cover lifting device (1) and a filling device (2); the manhole cover lifting device (1) includes a support frame (1.2), the support frame (1.2) is connected to a lifting frame, and the lower end of the lifting frame is connected to a gripper (1.6) for engaging the manhole cover; the filling device (2) includes an arc-shaped frame (2.2), the cross-section of the arc-shaped frame (2.2) is a transverse U-shape, and the inner ring of the arc-shaped frame (2.2) is slidably connected to an arc-shaped push plate (2.1) along a straight line.

2. The quick-fixing device for manhole covers during road asphalt paving construction according to claim 1, characterized in that, The lifting frame includes an electric push rod mounted on the top of the support frame. 1.1), the lower end of the electric push rod (1.1) is connected to the gripper (1.6).

3. The quick-fixing device for manhole covers during road asphalt paving construction according to claim 2, characterized in that, The lower end of the electric push rod (1.1) is connected to an adapter ring (1.3), and the adapter ring (1.3) is circumferentially rotatably connected to at least three adjustable-length connecting rods (1.4). The lower end of each connecting rod (1.4) is rotatably connected to a gripper (1.6), and the gripper (1.6) is connected to the connecting rod (1.4) by a torsion spring (1.5).

4. A quick-fixing device for manhole covers during road asphalt paving construction according to claim 3, characterized in that, The connecting rod (1.4) is a screw-sleeve type threaded connection structure.

5. A quick-fixing device for manhole covers during road asphalt paving construction according to claim 1, characterized in that, The outer side of the arc frame (2.2) is connected to a sleeve (2.3), and a slide rod (2.7) is slidably connected inside the sleeve (2.3). The front end of the slide rod (2.7) is connected to the outer side of the arc push plate (2.1).

6. A quick-fixing device for manhole covers during road asphalt paving construction according to claim 5, characterized in that, The length of the slide bar (2.7) is greater than the length of the sleeve (2.3).

7. A quick-fixing device for manhole covers during road asphalt paving construction according to claim 5, characterized in that, Both the sleeve (2.3) and the slide rod (2.7) are arranged in a horizontal direction. The end of the sleeve (2.3) is connected to an upwardly inclined extension rod (2.4). The end of the slide rod (2.7) away from the arc-shaped push plate (2.1) is rotatably connected to a drive rod (2.5). The drive rod (2.5) is hinged to the extension rod (2.4).

8. A quick-fixing device for manhole covers during road asphalt paving construction according to claim 1, characterized in that, The arc-shaped frame (2.2) and the arc-shaped push plate (2.1) both have an unfolding angle of 180 degrees.

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