Auxiliary tool equipment for laying asphalt around well lid
By designing a manhole cover auxiliary tooling equipment including a frame and a screw lift body, the problems of hollows and pavement depressions under the manhole cover during asphalt laying are solved, and the manhole cover and asphalt are quickly lifted, which improves work efficiency and pavement flatness.
Patent Information
- Application Number
- CN202421340877.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-13
Smart Images

Figure CN223047205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt paving, in particular to an auxiliary tooling device for asphalt paving around manhole covers. Background Technique
[0002] Asphalt is a dark brown complex mixture composed of hydrocarbon compounds with different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid; asphalt is a waterproof, moisture-proof and anti-corrosive organic cementing material, mostly existing in the form of tar or pitch, with a black surface and soluble in carbon disulfide; it is mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt, mainly used in industries such as coatings, plastics, rubber, etc. and paving roads, etc.; when paving asphalt on the road surface, since the manhole cover blocks the bottom, it is difficult for asphalt to enter the bottom of the manhole cover, resulting in cavities under the manhole cover. After long-term use, the asphalt around the manhole cover will move downward under the manhole cover, causing the road surface around the manhole cover to sink and the road surface to be uneven. Therefore, the manhole cover needs to be lifted when paving asphalt. Currently, the manhole cover is lifted entirely by workers. However, the manhole cover itself is heavy, making it laborious for workers to lift the manhole cover, thus reducing the work efficiency of asphalt paving; therefore, an auxiliary tooling device for asphalt paving around manhole covers is proposed to solve the above problems. Summary of the Invention
[0003] The purpose of the utility model is to provide an auxiliary tooling device for asphalt paving around manhole covers to solve the above problems.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] An auxiliary tooling device for asphalt paving around manhole covers includes a frame. A screw jack body is arranged on the frame. A circular plate is arranged at the bottom of the screw jack body. Rectangular openings are symmetrically formed on the circular plate. An arc-shaped groove is formed on one inner wall of the rectangular opening. A fixing member is arranged in the arc-shaped groove.
[0006] The fixing member includes a clamping rod slidably arranged in the arc-shaped groove. A dial rod is arranged on the top surface of the clamping rod. An arc-shaped opening is formed on the top inner surface of the arc-shaped groove to cooperate with the dial rod. The top of the dial rod movably penetrates out of the arc-shaped opening. A clamping groove is formed on the other inner wall of the rectangular opening to cooperate with the clamping rod.
[0007] Preferably, a sponge ring is wrapped on the outer wall of the dial rod.
[0008] Preferably, the clamping rod is arc-shaped and made of hard stainless steel.
[0009] Preferably, support rods are symmetrically arranged on the frame. A mounting plate is fixedly connected to the support rods. And the screw jack body is installed on the mounting plate.
[0010] Preferably, longitudinal brackets are symmetrically arranged on the sides of the frame, and transverse brackets are arranged on both the front end face and the rear end face of the frame.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:
[0012] By using the frame and the screw jack body in cooperation, the present utility model facilitates the quick lifting of the manhole cover, with simple and convenient operation, reduces the labor intensity of workers, and improves the work efficiency of asphalt paving; at the same time, it also facilitates filling asphalt under the manhole cover to ensure the elevation and density, thereby preventing future settlement and further ensuring the flatness of the road surface in the future. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 shows a schematic structural diagram from the front perspective according to an embodiment of the present utility model;
[0014] Figure 2 shows a schematic structural diagram from the top perspective according to an embodiment of the present utility model;
[0015] Figure 3 shows a schematic structural diagram of a circular plate according to an embodiment of the present utility model;
[0016] Figure 4 shows a schematic cross-sectional structural diagram of a circular plate according to an embodiment of the present utility model.
[0017] Legend:
[0018] 1. Frame; 2. Screw jack body; 3. Longitudinal bracket; 4. Transverse bracket; 5. Circular plate; 6. Mounting plate; 7. Support rod; 8. Rectangular opening; 9. Arc-shaped opening; 10. Poking rod; 11. Card slot; 12. Arc-shaped groove; 13. Card rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0021] An auxiliary tooling device for asphalt paving around a manhole cover, comprising a frame 1. Longitudinal brackets 3 are symmetrically arranged on the side surfaces of the frame 1, and transverse brackets 4 are arranged on both the front end face and the rear end face of the frame 1, improving the stability of the frame 1, thus facilitating the lifting of the manhole cover and further facilitating the paving of asphalt. A screw jack body 2 is arranged on the frame 1 (the working principle of the screw jack body 2 is: balls are arranged between the thread raceways of the screw and the nut. When the screw or the nut rotates, the balls roll along the thread raceway, then when relative movement occurs between the screw and the nut, rolling friction is generated. To prevent the balls from rolling out of the raceway, return guiding devices are arranged at both ends of the spiral groove of the nut, and they form a circulating loop with the thread raceway, enabling the balls to circulate within the nut raceway, which is the prior art), used for the lifting of the circular plate 5, thus facilitating the lifting of the manhole cover and further facilitating the paving of asphalt under the manhole cover, filling the area under the manhole cover with asphalt to ensure the elevation and density, thereby preventing future settlement and further ensuring the flatness of the road surface in the future. The bottom of the screw jack body 2 is provided with a circular plate 5. Rectangular openings 8 are symmetrically opened on the circular plate 5. An arc-shaped groove 12 is opened on the inner wall of one side of the rectangular opening 8. A fixing member is arranged in the arc-shaped groove 12. By using the fixing member, it is convenient to fix the rope (the end of the rope is fixedly connected with a hook matching the hole on the manhole cover, and the rope and the hook are not shown in the figure) hanging on the manhole cover on the circular plate 5. The operation is simple and convenient, facilitating the quick lifting of the manhole cover, and thus being beneficial to the quick paving of asphalt.
[0022] The fixing member includes a clamping rod 13 slidably arranged in the arc-shaped groove 12. The clamping rod 13 is arc-shaped and made of hard stainless steel material, improving the hardness and quality of the clamping rod 13, avoiding the phenomenon of the clamping rod 13 breaking when lifting the manhole cover, and being beneficial to the lifting of the manhole cover. A lever 10 is arranged on the top surface of the clamping rod 13, and a sponge ring is wrapped on the outer wall of the lever 10, improving the flexibility of the lever 10 and the comfort of using the fixing member. An arc-shaped opening 9 is opened on the inner top surface of the arc-shaped groove 12 to cooperate with the lever 10. The top of the lever 10 movably penetrates out of the arc-shaped opening 9. A clamping groove 11 is opened on the inner wall of the other side of the rectangular opening 8 to cooperate with the clamping rod 13.
[0023] In the present utility model, support rods 7 are symmetrically arranged on the frame 1. A mounting plate 6 is fixedly connected to the support rods 7, and the screw jack body 2 is mounted on the mounting plate 6, facilitating the support of the screw jack body 2 and thus facilitating the normal operation of the screw jack body 2.
[0024] Working principle: When the utility model is in use, first move the frame 1 onto the manhole cover so that the manhole cover is located below the circular plate 5. Then, hang the hook with a rope in the hole on the manhole cover. Next, push the lever 10 to move the latch 13 into the arc-shaped groove 12, thereby opening the rectangular opening 8. Since one end of the rope is in a circular shape, push the lever 10 to make the latch 13 pass through the circle at one end of the rope and insert it into the card slot 11 to fix the rope. Then, rotate the handle of the screw jack body 2 to make the screw of the screw jack body 2 move upward, driving the circular plate 5 to move upward, further driving the rope to move upward, and further driving the manhole cover to move upward, facilitating the laying of asphalt under the manhole cover, filling the area under the manhole cover with asphalt to ensure the elevation and density, preventing future settlement, and further ensuring the smoothness of the road surface in the future. At the same time, it is convenient to quickly lift the manhole cover, improving the work efficiency of asphalt laying.
[0025] The above description of the embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An auxiliary tooling equipment for laying asphalt around a manhole cover, comprising a frame (1), characterized in that: The frame (1) is provided with a screw lift body (2), the bottom of the screw lift body (2) is provided with a circular plate (5), the circular plate (5) is symmetrically provided with rectangular openings (8), an arc groove (12) is provided on the inner wall of one side of the rectangular opening (8), and a fixing piece is provided in the arc groove (12); The fixing member comprises a clamping rod (13) slidably arranged in the arc-shaped groove (12); a lever (10) is arranged on the top surface of the clamping rod (13); an arc-shaped opening (9) is provided on the top surface of the inner side of the arc-shaped groove (12) to cooperate with the lever (10); the top of the lever (10) movably passes through the arc-shaped opening (9); and a clamping groove (11) is provided on the inner wall on the other side of the rectangular opening (8) to cooperate with the clamping rod (13).
2. The auxiliary tooling equipment for asphalt laying around a manhole cover according to claim 1 is characterized in that: The outer wall of the lever (10) is wrapped with a sponge ring.
3. The auxiliary tooling equipment for asphalt laying around a manhole cover according to claim 1 is characterized in that: The clamping rod (13) is arc-shaped, and the clamping rod (13) is made of hard stainless steel.
4. The auxiliary tooling equipment for asphalt laying around a manhole cover according to claim 1, characterized in that: The frame (1) is symmetrically provided with support rods (7), a mounting plate (6) is fixedly connected to the support rods (7), and the screw lift body (2) is mounted on the mounting plate (6).
5. The auxiliary tooling equipment for asphalt laying around a manhole cover according to claim 1 is characterized in that: Longitudinal brackets (3) are symmetrically arranged on the side surfaces of the frame (1), and transverse brackets (4) are arranged on the front and rear surfaces of the frame (1).