Lifting construction device for anti-sedimentation well lid of inspection well
By using a combination of four positioning plates and positioning screws in the manhole cover lifting construction, the problem of inaccurate construction caused by crosshair swaying was solved, achieving high precision and safety in manhole cover lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XIAOHONG CONSTR GRP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, it is difficult to guarantee the accuracy of manhole cover lifting construction, mainly because the crosshairs are prone to shaking and deformation under stress.
Four positioning plates are used to guide and position the connecting plate and connecting feet simultaneously. The cross lines are used for cross-level calibration, and the height is precisely set using a scale. The cross lines are fixed with positioning screws to ensure construction accuracy.
This technology achieves high precision in manhole cover lifting construction, preventing the crosshairs from swaying under external wind or pressure, thus improving the accuracy and safety of the construction.
Smart Images

Figure CN224186813U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of manhole cover construction technology, specifically relating to a manhole cover lifting and construction device for preventing settlement of manholes. Background Technology
[0002] Inspection wells are auxiliary structures installed at pipe junctions, bends, changes in pipe diameter or slope, and at regular intervals on straight pipe sections. Their main function is to facilitate regular inspection, maintenance, and cleaning of pipelines, ensuring unobstructed flow and normal operation of facilities.
[0003] Anti-settlement manhole covers transmit pressure to the road surface through the asphalt layer, thereby reducing the pressure on the manhole and protecting the road base structure from damage. In addition, the design of anti-settlement manhole covers allows them to settle with the road surface, remaining flush with the road surface, reducing traffic disruption and maintenance costs, while also reducing the possibility of people falling or getting injured when walking over the manhole cover.
[0004] When constructing manhole covers for anti-settlement purposes, the manhole cover lifting process refers to raising or adjusting the manhole cover to ensure it is level with or slightly higher than the surrounding road surface, thereby reducing water accumulation and improving driving safety and comfort. Currently, the main method is to use a crosshair to calibrate the horizontal plane and lift the manhole cover to the crosshair position. However, the crosshair itself is prone to swaying and deformation under stress, making it difficult to guarantee accuracy. Utility Model Content
[0005] This utility model provides a manhole cover lifting and construction device for preventing settlement. Four positioning plates simultaneously guide and position the connecting plate and connecting feet. Cross-shaped lines are used for horizontal calibration, facilitating the lifting and construction of the manhole cover. The height position of the line can be accurately set through the scale, facilitating precise construction. By turning the turning part, the four positioning screws are turned so that the bottom end of the positioning screws is exactly against the cross-shaped lines. Thus, during construction, the line will not sway up and down under external wind or pressure, resulting in high precision and solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a manhole cover lifting and construction device for preventing settlement of inspection wells, including a support base, a top plate mounted on the support base, a downward telescopic cylinder mounted on the top plate, a connecting plate mounted on the piston rod of the telescopic cylinder after passing through the top plate, four connecting feet on the bottom surface of the connecting plate, a wire fixing part on the bottom surface of the connecting feet, and a wire between opposite wire fixing parts, with two sets of wires intersecting to form a cross.
[0007] Preferably, the lower part of the support leg of the support base is vertical and is provided with a positioning plate, and the positioning plate is provided with a scale from bottom to top along the edge.
[0008] Preferably, the connecting plate has a groove corresponding to the positioning plate and can slide up and down along the positioning plate.
[0009] Preferably, the connecting foot has a groove corresponding to the positioning plate and can slide up and down along the positioning plate.
[0010] Preferably, the positioning plate has a groove along its edge, and the scale is engraved in the groove.
[0011] Preferably, the bottom surface of the connecting plate is connected to a circular plate via a connecting part. The circular plate is equipped with four positioning screws and has threaded holes corresponding to the positioning screws. All four positioning screws are located above the line.
[0012] Preferably, the positioning screw has a turning part at the top.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The connecting plate and connecting feet are lowered by the telescopic cylinder. During this process, four positioning plates guide and position the connecting plate and connecting feet simultaneously. The cross lines are used for cross-level calibration to facilitate the lifting and construction of the manhole cover.
[0015] 2. The height of the line can be precisely set through the scale, which facilitates accurate construction.
[0016] 3. After the line reaches the set height, the four positioning screws are turned by turning the turning part so that the bottom of the positioning screws is just against the cross line. This prevents the line from swaying up and down under external wind or pressure during construction, ensuring high precision. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a top view of the connecting foot and positioning plate of this utility model;
[0019] Figure 3 This is a schematic diagram of the connecting plate and positioning plate structure of this utility model;
[0020] Figure 4 This is a side view of the positioning plate structure of this utility model;
[0021] Figure 5 This is a top view schematic diagram of the circular plate structure of this utility model.
[0022] In the diagram: 1. Support base; 2. Top plate; 3. Telescopic cylinder; 4. Connecting plate; 5. Connecting foot; 6. Wire fixing part; 7. Wire; 8. Positioning plate; 9. Scale; 10. Groove; 11. Connecting part; 12. Round plate; 13. Positioning screw; 14. Threaded hole; 15. Tightening part. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 This utility model provides a manhole cover lifting and construction device for preventing settlement of inspection wells, including a support base 1, a top plate 2 mounted on the support base 1, a downward-facing telescopic cylinder 3 mounted on the top plate 2, a connecting plate 4 mounted on the piston rod of the telescopic cylinder 3 after passing through the top plate 2, and four connecting feet 5 on the bottom surface of the connecting plate 4, and a wire fixing part 6 on the bottom surface of the connecting feet 5, with wires 7 between opposite wire fixing parts 6, and two sets of wires 7 intersecting to form a cross; the device is placed at the construction inspection well and adjusted to be horizontal, and then the connecting plate 4 is lowered by the telescopic cylinder 3, which further lowers the connecting feet 5, and the cross-shaped wires 7 are used for cross-level calibration, which facilitates the lifting and construction of the manhole cover.
[0025] Specifically, the lower part of the support leg of the support base 1 is vertical and is provided with a positioning plate 8. The positioning plate 8 is provided with a scale 9 from bottom to top along its edge. In this embodiment, the height position of the line 7 can be accurately set by the scale 9, which facilitates precise construction.
[0026] Specifically, the connecting plate 4 is provided with a groove corresponding to the positioning plate 8, and can slide up and down along the positioning plate 8; in this embodiment, the four positioning plates 8 can guide and position the four connecting plates 4 simultaneously by cooperating with the groove, thereby improving accuracy.
[0027] Specifically, the connecting foot 5 is provided with a groove corresponding to the positioning plate 8, and can slide up and down along the positioning plate 8; in this embodiment, the four positioning plates 8 can guide and position the four connecting feet 5 simultaneously by cooperating with the groove, thereby improving accuracy.
[0028] Specifically, the positioning plate 8 has a groove 10 along its edge, and the scale 9 is engraved in the groove 10; in this embodiment, friction between the connecting plate 4 and the positioning plate 8 and the scale 9 is avoided when the connecting plate 4 and the positioning plate 8 move up and down along the positioning plate 8.
[0029] Specifically, the bottom surface of the connecting plate 4 is connected to a circular plate 12 via a connecting part 11. The circular plate 12 is equipped with four positioning screws 13 and has threaded holes 14 corresponding to the positioning screws 13. All four positioning screws 13 are located above the line 7. In this embodiment, after the line 7 reaches the set height, the bottom ends of the four positioning screws 13 are turned so that they just abut against the cross-shaped lines 7. Thus, during construction, the line 7 will not sway up and down under external wind or pressure, resulting in high precision.
[0030] Specifically, the top of the positioning screw 13 is provided with a screwing part 15; in this embodiment, the screwing part 15 facilitates the screwing of the positioning screw 13.
[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0032] Working principle: The device is placed at the construction inspection well and adjusted to be level. Then, the telescopic cylinder 3 drives the connecting plate 4 to descend, which in turn drives the connecting foot 5 to descend. During this process, the four positioning plates 8 simultaneously guide and position the connecting plate 4 and the connecting foot 5. The cross lines 7 are used for cross-level calibration, which facilitates the lifting of the manhole cover. At the same time, the height of the line 7 can be accurately set through the scale 9, which facilitates precise construction. After the line 7 reaches the set height, the four positioning screws 13 are turned by turning the turning part 15, so that the bottom end of the positioning screw 13 just abuts against the cross lines 7. Thus, during construction, the line 7 will not sway up and down under external wind or pressure, resulting in high precision.
[0033] 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 manhole cover lifting and construction device for preventing settlement of inspection wells, comprising a support base (1), characterized in that, The support base (1) is equipped with a top plate (2), and the top plate (2) is equipped with a downward telescopic cylinder (3). The piston rod of the telescopic cylinder (3) passes through the top plate (2) and is equipped with a connecting plate (4). The bottom surface of the connecting plate (4) is provided with four connecting feet (5). The bottom surface of the connecting feet (5) is provided with a wire fixing part (6). A wire (7) is provided between the opposite wire fixing parts (6). The two sets of wires (7) intersect to form a cross.
2. The anti-settling inspection well lid lifting construction device according to claim 1, characterized in that, The lower part of the support leg of the support base (1) is vertical and is provided with a positioning plate (8). The positioning plate (8) is provided with a scale (9) from bottom to top along its edge.
3. The manhole cover lifting and construction device for preventing settlement of inspection wells according to claim 2, characterized in that, The connecting plate (4) is provided with a groove corresponding to the positioning plate (8) and can slide up and down along the positioning plate (8).
4. The manhole cover lifting and construction device for preventing settlement of inspection wells according to claim 2, characterized in that, The connecting foot (5) is provided with a groove corresponding to the positioning plate (8) and can slide up and down along the positioning plate (8).
5. The anti-settling inspection well lid lifting construction device according to claim 2, characterized in that, The positioning plate (8) has a groove (10) along its edge, and the scale (9) is engraved in the groove (10).
6. The anti-settling inspection well lid lifting construction device according to claim 1, characterized in that, The bottom surface of the connecting plate (4) is connected to a circular plate (12) via a connecting part (11). The circular plate (12) is equipped with four positioning screws (13) and has threaded holes (14) corresponding to the positioning screws (13). All four positioning screws (13) are located above the line (7).
7. The anti-settling inspection well lid lifting construction device according to claim 6, characterized in that, The positioning screw (13) is provided with a screwing part (15) at the top.