Multifunctional manhole cover auxiliary opening device

By designing a multifunctional manhole cover auxiliary opening device, which utilizes hooks, support legs, and winding components, the problem of laborious manhole cover opening is solved, enabling rapid opening of manhole covers and efficient winding of pipes, thereby improving work efficiency.

CN224362524UActive Publication Date: 2026-06-16GUANGZHOU SCI CITY DRAINAGE MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU SCI CITY DRAINAGE MANAGEMENT CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing manhole cover opening tools are laborious and inefficient, especially when the manhole cover is firmly attached to the ground, making it difficult to open quickly.

Method used

A multifunctional manhole cover auxiliary opening device was designed, including a hook, support legs, moving rollers and a winding assembly. It uses the lever principle and support structure to assist in opening the manhole cover, and the winding assembly enables the rapid winding of the pipe.

Benefits of technology

It enables quick and convenient opening of manhole covers and efficient winding of pipes, reducing manpower consumption and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224362524U_ABST
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Abstract

The utility model discloses a multifunctional well lid auxiliary opening device, including the opening vertical board, the opening vertical board one side fixed installation has the opening horizontal board, be provided with the auxiliary movement subassembly on the opening vertical board, the opening vertical board one side is provided with the auxiliary winding subassembly, the opening horizontal board is installed through the lifting assembly and is provided with the lifting hook, the both sides of lifting hook are provided with two support legs, and the adjusting assembly is arranged between support leg and opening horizontal board, this multifunctional well lid auxiliary opening device, set up the lifting hook, the hole in the upper well lid is hooked under the lifting hook and is moved down, utilizes the principle of lever, and the well lid is lifted, realizes the mode of first kind of opening, and the lifting assembly and the adjusting assembly are set up, and two support legs are pressed in the upper well lid, and the position is pressed tightly fixed in cooperation with the lifting hook, and the well lid is lifted as a whole by pulling the lifting hook upwards, and the lever principle is also utilized when opening, realizes the second opening mode, through various ways, is convenient for the auxiliary opening of well lid.
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Description

Technical Field

[0001] This utility model relates to the field of manhole cover opening technology, and in particular to a multifunctional manhole cover auxiliary opening device. Background Technology

[0002] Urban construction involves numerous underground pipelines, such as sewers, underground gas pipelines, water supply pipelines, power pipelines, communication pipelines, and defense pipelines. These pipelines have an outlet to the surface at intervals; this section from the pipeline to the surface is called a manhole. The manhole opening is usually flush with the ground, thus requiring a cover, called a manhole cover or well cover. When maintenance or repair of these underground pipelines is needed, the manhole cover must be removed.

[0003] Currently, the common method for opening manhole covers is to manually pry them up using a crowbar or hook inserted into the inspection hole. These traditional tools are laborious and inefficient. Since everyone's strength is different, the same manhole cover may be impossible for a different worker to pry up or lift. In addition, most manhole covers have not been used for a long time after construction, and are firmly attached to the ground due to sand, soil, rainwater, etc. Simply opening the manhole cover by hand is laborious, tiring, and slow. Therefore, a multi-functional manhole cover auxiliary opening device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional manhole cover auxiliary opening device to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multifunctional manhole cover auxiliary opening device includes an opening vertical plate, an opening horizontal plate fixedly installed on one side of the opening vertical plate, an auxiliary moving component provided on the opening vertical plate, an auxiliary winding component provided on one side of the opening vertical plate, a hook installed on the opening horizontal plate via a lifting component, two support legs provided on both sides of the hook, and an adjustment component provided between the support legs and the opening horizontal plate.

[0007] Preferably, the auxiliary moving component includes a rotating shaft rotatably mounted on the opening vertical plate, a moving roller fixedly sleeved on the rotating shaft, and a hand handle provided at the end of the opening vertical plate.

[0008] Preferably, the lifting assembly includes a lifting screw hole formed on the opening horizontal plate, a lifting stud threaded onto the lifting screw hole, and the bottom end of the hook is fixedly installed on the bottom end of the lifting stud.

[0009] Preferably, the adjustment assembly includes two adjustment screw holes on the top of the opening cross plate, each with an adjustment screw threaded onto it, and the bottom ends of the two adjustment screws are fixedly connected to the top of the support leg.

[0010] Preferably, a rotating handle is fixedly installed at the top of both the lifting stud and the adjusting screw.

[0011] Preferably, the auxiliary winding assembly includes a rotating hole on the side of the opening vertical plate, a main rotating storage shaft is rotatably mounted on the rotating hole, an L-shaped winding stop is fixedly mounted on the main rotating storage shaft, and a winding handle is fixedly mounted on one end of the main rotating storage shaft.

[0012] Preferably, two end blocking rings are fixedly sleeved on the main rotating storage shaft. The two end blocking rings are located on both sides of the opening vertical plate, and two water belt squeezing rollers are rotatably installed on one side of the opening horizontal plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the multifunctional manhole cover auxiliary opening device is equipped with a hook, which moves down and hooks onto the hole on the manhole cover, using the principle of leverage to lift the manhole cover and achieve the first opening mode;

[0014] The lifting and adjusting components are designed to press the two support legs onto the top of the manhole cover, and work with the hook to press and fix the position. Pulling the hook upwards will lift the entire manhole cover. Opening also utilizes the principle of leverage to achieve a second opening mode. Multiple methods are used to facilitate the assisted opening of the manhole cover.

[0015] The auxiliary winding component allows the end of the pipe to be wound around the L-shaped winding stop. Rotating the winding handle drives the main rotating winding shaft to rotate, enabling the pipe to be wound up. The wound pipe passes through the water belt squeezing roller, which can squeeze out the water inside, thus achieving the function of rapid winding. The manhole cover opening device has multiple functions to meet a variety of usage needs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the left side;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from the right side;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A.

[0020] In the diagram: 1. Opening vertical plate; 2. Opening horizontal plate; 3. Moving roller; 4. Lifting screw hole; 5. Lifting stud; 6. Hook; 7. Adjusting screw hole; 8. Adjusting screw; 9. Support leg; 10. Rotating handle; 11. Hand handle; 12. Water belt extrusion roller; 13. Main rotating storage shaft; 14. Rotating hole; 15. End blocking ring; 16. Rewinding handle; 17. L-shaped rewinding stop bar. Detailed Implementation

[0021] 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.

[0022] Example: Refer to Figure 1-4 A multifunctional manhole cover auxiliary opening device includes an opening vertical plate 1, an opening horizontal plate 2 fixedly installed on one side of the opening vertical plate 1, an auxiliary moving component on the opening vertical plate 1, an auxiliary winding component on one side of the opening vertical plate 1, and a hook 6 installed on the opening horizontal plate 2 via a lifting component. The device is moved to the vicinity of the manhole cover, the hook 6 is lowered and hooked onto the hole on the manhole cover, the handle 11 is grasped and pressed down, and the manhole cover is lifted using the lever principle, achieving an opening mode. This device is mainly used when manhole covers are mostly hinged. The auxiliary moving component includes a rotating shaft rotatably mounted on the opening vertical plate 1, a moving roller 3 fixedly sleeved on the rotating shaft, and a handle 11 at the end of the opening vertical plate 1. The moving roller 3 facilitates rapid movement of the entire device.

[0023] Specifically, the hook 6 has two support legs 9 on both sides, and an adjustment assembly is provided between the support legs 9 and the opening horizontal plate 2. The lifting assembly includes a lifting screw hole 4 on the opening horizontal plate 2, and a lifting stud 5 is threaded onto the lifting screw hole 4. The bottom end of the hook 6 is fixedly installed at the bottom end of the lifting stud 5. The adjustment assembly includes two adjustment screw holes 7 on the top of the opening horizontal plate 2, and an adjustment screw 8 is threaded onto each of the two adjustment screw holes 7. The bottom ends of the two adjustment screws 8 are fixedly connected to the top of the support legs 9. A rotating handle 10 is fixedly installed at the top of the lifting stud 5 and the adjustment screw 8. When the manhole cover is placed directly in the manhole... When the manhole is above the cover, a second opening method can be used. The hook 6 is still hung on the hole in the manhole cover, and then the two support legs 9 are pressed on the top of the manhole cover. The lifting stud 5 can adjust the height of the hook 6, and the adjusting screw 8 can adjust the height of the support legs 9. By adjusting the position difference between the two support legs 9 and the hook 6, the hook 6 can be inserted into the manhole cover. The support legs 9 achieve a pressing effect. Pull the hook 6 upward, and then the entire manhole cover is lifted up. The moving roller 3 is used to move and transport it to the side. The opening also uses the principle of leverage. Through multiple methods, the manhole cover can be opened with assistance.

[0024] Specifically, the auxiliary winding assembly includes a rotating hole 14 on the side of the opening vertical plate 1, a main rotating winding shaft 13 rotatably mounted on the rotating hole 14, an L-shaped winding stop bar 17 fixedly mounted on the main rotating winding shaft 13, a winding handle 16 fixedly mounted on one end of the main rotating winding shaft 13, and two end blocking rings 15 fixedly sleeved on the main rotating winding shaft 13. The two end blocking rings 15 are located on both sides of the opening vertical plate 1. Two water belt squeezing rollers 12 are rotatably mounted on one side of the opening horizontal plate 2. After opening, it is frequently necessary to... To use a pipe for pumping water from the bottom of a well, the pipe needs to be rolled up after pumping. The pipe to be rolled up is passed through two water hose extrusion rollers 12, and then the end of the pipe is wrapped around an L-shaped winding stop bar 17. Rotating the winding handle 16 drives the main rotating storage shaft 13 to rotate. After the L-shaped winding stop bar 17 rotates, the pipe can be rolled up. The rolled-up pipe passes through the water hose extrusion rollers 12, which can squeeze out the water inside, thus achieving the function of rapid winding. The well cover opening device has multiple functions and meets a variety of usage needs.

[0025] In use: When performing maintenance and inspection on the pipeline, the manhole cover needs to be opened. The hook 6 is lowered and hooked onto the hole on the manhole cover. The handle 11 is held and pressed down, using the lever principle to lift the manhole cover, achieving the first opening mode. The hook 6 is then hung on the hole on the manhole cover. The two support legs 9 are pressed against the top of the manhole cover, and the hook 6 is pulled upwards, lifting the entire manhole cover. The moving rollers 3 are used to move and transport it to the side, also using the lever principle, achieving the second opening mode. Multiple methods facilitate the assisted opening of the manhole cover. The used pipe end is wound around the L-shaped winding stop 17, and the winding handle 16 is rotated to wind up the pipe. The wound pipe passes through the water pressure roller 12, which squeezes out the internal water, thus achieving a rapid winding function. The manhole cover opening device has multiple functions, meets various usage needs, and is easy to use.

[0026] 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 multifunctional manhole cover auxiliary opening device, comprising an opening vertical plate (1), characterized in that, An opening horizontal plate (2) is fixedly installed on one side of the opening vertical plate (1). An auxiliary moving component is provided on the opening vertical plate (1). An auxiliary winding component is provided on one side of the opening vertical plate (1). A hook (6) is installed on the opening horizontal plate (2) through a lifting component. Two support legs (9) are provided on both sides of the hook (6). An adjustment component is provided between the support legs (9) and the opening horizontal plate (2).

2. The multifunctional manhole cover auxiliary opening device according to claim 1, characterized in that, The auxiliary moving component includes a rotating shaft rotatably mounted on the opening vertical plate (1), a moving roller (3) fixedly sleeved on the rotating shaft, and a hand handle (11) provided at the end of the opening vertical plate (1).

3. The multifunctional manhole cover auxiliary opening device according to claim 1, characterized in that, The lifting assembly includes a lifting screw hole (4) opened on the opening horizontal plate (2), a lifting stud (5) threaded on the lifting screw hole (4), and the bottom end of the hook (6) is fixedly installed on the bottom end of the lifting stud (5).

4. The multifunctional manhole cover auxiliary opening device according to claim 3, characterized in that, The adjustment assembly includes two adjustment screw holes (7) on the top of the opening horizontal plate (2), and adjustment screws (8) are threaded onto the two adjustment screw holes (7). The bottom ends of the two adjustment screws (8) are fixedly connected to the top of the support leg (9).

5. A multifunctional manhole cover auxiliary opening device according to claim 4, characterized in that, The top of both the lifting stud (5) and the adjusting screw (8) are fixedly equipped with a rotating handle (10).

6. The multifunctional manhole cover auxiliary opening device according to claim 1, characterized in that, The auxiliary winding assembly includes a rotating hole (14) on the side of the opening vertical plate (1), a main rotating storage shaft (13) is rotatably mounted on the rotating hole (14), an L-shaped winding stop bar (17) is fixedly mounted on the main rotating storage shaft (13), and a winding handle (16) is fixedly mounted on one end of the main rotating storage shaft (13).

7. A multifunctional manhole cover auxiliary opening device according to claim 6, characterized in that, Two end blocking rings (15) are fixedly sleeved on the main rotating storage shaft (13). The two end blocking rings (15) are located on both sides of the opening vertical plate (1). Two water belt squeezing rollers (12) are rotatably installed on one side of the opening horizontal plate (2).