Well lid flatness leveling device

Abstract

The utility model relates to a well lid flatness leveling device, and belongs to the technical field of well lid construction. Comprising a flat plate, a plurality of adjusting rods arranged below the flat plate, a connecting column, a connecting plate and an electromagnet arranged below the connecting plate, the center of the electromagnet is consistent with the center of the flat plate, the flat plate can move up and down through the adjusting rods, the connecting plate is connected with the flat plate through the connecting column, and a plurality of positioning clamps are arranged at the bottom of the connecting plate. The positioning pincers are circumferentially and evenly distributed below the flat plate, and the center of the circumference defined by the positioning pincers is consistent with the center position of the electromagnet. According to the utility model, the labor intensity of operators is reduced, the labor input is reduced, the construction cost is reduced, the construction progress is accelerated, and the device can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to a manhole cover flatness leveling device, belonging to the field of manhole cover construction technology. Background Technology

[0002] Manholes are ancillary structures of urban roads. During urban road construction, manhole cover leveling is an important procedure. Currently, most manhole cover leveling is done manually. The disadvantages of manual manhole cover leveling are: due to the large weight of the manhole cover, a lot of manpower is required during the construction process, and the construction process is cumbersome, resulting in slow construction progress.

[0003] Chinese Patent (CN216552094U) discloses a manhole cover leveling system and leveling device, comprising: a manhole cover; a leveling device installed below the manhole cover; the leveling device includes a pad, on which a screw is fixed, the extension direction of the screw being perpendicular to the bottom surface of the pad; a sleeve is threaded onto the screw, the sleeve being movable along the extension direction of the screw, and the end of the sleeve away from the pad supporting the manhole cover. This utility model relates to a manhole cover leveling system and leveling device, which allows for flexible adjustment of the height of the leveling device by rotating the sleeve, achieving leveling of the manhole cover. It features a simple structure, a simple adjustment process, a small size, and minimal impact on subsequent road construction.

[0004] The problem with the above-mentioned patent is that the leveling device is placed under the manhole cover for adjustment and is permanently placed at the manhole opening. With the erosion of rainwater and the passage of time, the leveling device will be corroded and damaged, making it impossible to reuse. In addition, the manhole cover still needs to be moved manually, resulting in high labor intensity for the operators. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a manhole cover flatness leveling device that reduces the labor intensity of operators, reduces manual input, lowers construction costs, speeds up construction progress, and is reusable.

[0006] The present invention discloses a manhole cover flatness leveling device, comprising a flat plate, several adjusting rods placed below the flat plate, a connecting column, a connecting plate, and an electromagnet placed below the connecting plate. The center of the electromagnet is aligned with the center of the flat plate. The adjusting rods enable the flat plate to move up and down. The connecting plate is connected to the flat plate via the connecting column. Several positioning clamps are provided at the bottom of the connecting plate. The positioning clamps are evenly distributed around the flat plate, and the center of the circle formed by the positioning clamps is aligned with the center of the electromagnet.

[0007] Each adjusting rod is equipped with a positioning clamp for a distance measuring mechanism. The distance measuring mechanism is a laser rangefinder, which can realize automatic measurement, eliminating the need for repeated manual measurement with a ruler, thus improving construction speed and measurement accuracy.

[0008] The adjusting rod includes a sleeve, a screw, and a base plate. The sleeve is fitted around the outer circumference of the screw and connected to the screw via a thread. The bottom of the screw is rotatably connected to the base plate, and the top of the sleeve is fixedly connected to the plate. Because the sleeve and the screw are connected by a thread, rotating the screw allows the sleeve to move up and down, thereby causing the plate to move up and down.

[0009] The adjusting rod is a hydraulic cylinder. The hydraulic cylinder enables automatic adjustment, reducing labor intensity.

[0010] The number of positioning clamps is three. This ensures the stability of the manhole cover gripping.

[0011] The number of adjusting rods is four. This allows for adjustment at four different angles, improving the accuracy of manhole cover adjustment.

[0012] A reinforcing rib is provided between the connecting column and the connecting plate. This increases the strength of the connecting plate and prevents it from deforming due to the weight of the manhole cover.

[0013] The adjusting rod is equipped with wheels at its bottom. The wheels facilitate the movement of the device.

[0014] A braking mechanism is installed on the wheels. When the leveling device moves to the working position, the braking mechanism is pressed to prevent the wheels from rotating, thereby ensuring construction safety.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) This utility model sets up a flat plate, several adjusting rods placed below the flat plate, a connecting column, a connecting plate, and an electromagnet placed below the connecting plate. The electromagnet enables the manhole cover to be gripped, reducing the labor intensity of the operators, reducing manual input and lowering construction costs. The adjusting rods enable the electromagnet to move up and down and adjust the angle, thereby achieving the leveling of the manhole cover and speeding up the construction progress. The device will not be placed in the manhole with the manhole cover, so it can be reused.

[0017] (2) The adjusting rod includes a sleeve, a screw, and a base plate. The sleeve is fitted around the outer circumference of the screw and is connected to the screw by a thread. The bottom of the screw is rotatably connected to the base plate, and the top of the sleeve is fixedly connected to the plate. Because the sleeve and the screw are connected by a thread, rotating the screw can make the sleeve move up and down, thereby driving the plate to move up and down.

[0018] (3) Wheels are provided at the bottom of the adjusting rod. The wheels facilitate the movement of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0020] Figure 2 This is a top view of Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the adjusting rod in Embodiment 2 of this utility model.

[0022] In the diagram: 1. Braking mechanism; 2. Wheel; 3. Positioning clamp; 4. Electromagnet; 5. Connecting plate; 6. Connecting column; 7. Reinforcing rib; 8. Adjusting rod; 81. Sleeve; 82. Screw; 83. Base plate; 9. Flat plate; 10. Distance measuring mechanism. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments:

[0024] Example 1

[0025] like Figures 1-2 As shown, the manhole cover flatness leveling device of this utility model includes a flat plate 9, several adjusting rods 8 placed below the flat plate 9, a connecting column 6, a connecting plate 5, and an electromagnet 4 placed below the connecting plate 5. The center of the electromagnet 4 is consistent with the center of the flat plate 9. The adjusting rods 8 can realize the up and down movement of the flat plate 9. The connecting plate 5 is connected to the flat plate 9 through the connecting column 6. Several positioning clamps 3 are provided at the bottom of the connecting plate 5. The positioning clamps 3 are evenly distributed around the bottom of the flat plate 9. The center of the circumference formed by the positioning clamps 3 is consistent with the center of the electromagnet 4.

[0026] Adjusting rod 8 is a hydraulic cylinder. There are three positioning clamps 3. There are four adjusting rods 8, as shown below. Figure 2 As shown, the adjusting rods 8 are arranged in a rectangular array below the plate 9, with the center of the rectangle formed by the four adjusting rods 8 coinciding with the center of the electromagnet 4. Each adjusting rod 8 is equipped with a ranging mechanism 10, which is a laser rangefinder. A reinforcing rib 7 is provided between the connecting column 6 and the connecting plate 5. Wheels 2 are mounted at the bottom of the adjusting rods 8. A braking mechanism 1 is mounted on the wheels 2.

[0027] Work process:

[0028] Start the hydraulic cylinder, retract the hydraulic cylinder, and lower the height of the plate 9. Use electromagnet 4 to pick up the manhole cover. Extend the hydraulic cylinder telescopic rod to raise the manhole cover and push the device above the manhole opening. Retract the hydraulic cylinder to lower the manhole cover to near the manhole opening. Adjust the extension and retraction of the four hydraulic cylinders sequentially according to the data on the laser rangefinder to level the manhole cover. After leveling the manhole cover, add shims to the bottom of the manhole cover to support it. Release the manhole cover with electromagnet 4, and extend the hydraulic cylinder telescopic rod again to raise electromagnet 4.

[0029] Example 2

[0030] The difference from Embodiment 1 is that the adjusting rod 8 includes a sleeve 81, a screw 82, and a base plate 83. The sleeve 81 is fitted around the outer circumference of the screw 82 and is threadedly connected to the screw 82. The bottom of the screw 82 is rotatably connected to the base plate 83 via a bearing. The top of the sleeve 81 is fixedly connected to the flat plate 9. Figure 3 As shown, wheel 2 is positioned below base plate 83. Because sleeve 81 and screw 82 are connected by threads, rotating screw 82 allows sleeve 81 to move up and down, thereby driving electromagnet 4 to move up and down.

[0031] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A manhole cover flatness leveling device characterized by, The adjusting rod (8) is arranged below the plate (9), the connecting column (6) is connected between the plate (9) and the connecting plate (5), the electromagnet (4) is arranged below the connecting plate (5), the center of the electromagnet (4) is consistent with the center position of the plate (9), the adjusting rod (8) can realize the up-down movement of the plate (9), the connecting plate (5) is connected with the plate (9) through the connecting column (6), the bottom of the connecting plate (5) is provided with a plurality of positioning clamps (3), the positioning clamps (3) are circumferentially distributed below the plate (9), the circumferential center surrounded by the positioning clamps (3) is consistent with the center position of the electromagnet (4).

2. The cover flatness leveling device of claim 1, wherein, The distance measuring mechanism (10) is arranged on each adjusting rod (8).

3. The cover flatness leveling device of claim 2, wherein, The adjusting rod (8) comprises a sleeve (81), a screw rod (82) and a bottom plate (83), the sleeve (81) is sleeved on the outer periphery of the screw rod (82) and is connected with the screw rod (82) through threads, the bottom of the screw rod (82) is rotationally connected with the bottom plate (83), and the top of the sleeve (81) is fixedly connected with the plate (9).

4. The cover flatness leveling device of claim 2, wherein, The adjusting rod (8) is a hydraulic cylinder.

5. The cover flatness leveling device of claim 3, wherein, The number of the positioning clamps (3) is three.

6. The cover flatness levelling device of claim 5, wherein, The number of the adjusting rod (8) is four, the adjusting rod (8) is arranged in a rectangular array below the plate (9), and the center position of the rectangle surrounded by the four adjusting rods (8) is consistent with the center position of the electromagnet (4).

7. The cover flatness levelling device according to claim 6, wherein, The reinforcing rib (7) is arranged between the connecting column (6) and the connecting plate (5).

8. The cover flatness levelling device according to any one of claims 1-7, characterised in that, The wheel (2) is arranged at the bottom of the adjusting rod (8).

9. The cover flatness levelling device of claim 8, wherein, The brake mechanism (1) is arranged on the wheel (2).

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