Manhole cover synchronous lifting construction device

By introducing components such as a fixing rod, forward and reverse motors, and a two-way threaded screw into the manhole cover lifting device, the problem of the existing device being unable to adjust the position of the hook has been solved. This enables flexible adaptation and limiting of manhole covers of different sizes, reduces the risk of manhole covers shaking and falling off, and improves the applicability and safety of the device.

CN223879419UActive Publication Date: 2026-02-06CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
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Patent Information

Application Number
CN202520122844.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-06
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing manhole cover lifting devices cannot adjust the position of the hook according to the different sizes of manhole cover holes, resulting in an unstable connection between the hook and the hole. The manhole cover is prone to shaking, tilting or falling off during the lifting process, and has low applicability.

Method used

It adopts a combination structure of fixed rod, forward and reverse motor, bidirectional threaded screw, slider and hook. The bidirectional threaded screw driven by the forward and reverse motor can adjust the hook spacing. Combined with small cylinder and limit plate, it can flexibly adjust the hook position and limit the manhole cover, and adapt to manhole covers of different sizes.

Benefits of technology

It enables flexible adjustment of the hook position to adapt to various sizes of manhole covers, reducing the risk of manhole cover shaking and falling off, and improving the applicability and safety of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223879419U_ABST
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Abstract

The utility model discloses a manhole cover synchronous lifting construction device which comprises a top plate, the upper surface of the top plate is fixedly connected with an electric hoist, the output end of the electric hoist is fixedly connected with a connector, the lower surface of the connector is movably connected with a lifting rope, and the lower end of the lifting rope is fixedly connected with a lifting plate. A fixing rod is fixedly connected to the lower surface of the lifting hanger plate, a groove is formed in the fixing rod, a forward and reverse motor is fixedly connected to the left surface of the fixing rod, a bidirectional threaded lead screw is fixedly connected to the output end of the forward and reverse motor, and a sliding block is slidably connected to the inner surface of the groove. According to the device, the distance between the two lifting hooks can be adjusted, the positions of the lifting hooks can be adjusted according to the positions of holes in the well lid, the applicability is higher, the well lid can be limited when leaving the ground, and falling or accidents caused by shaking of the well lid are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inspection well lid, especially a synchronous lifting construction device for inspection well lid. BACKGROUND

[0002] The inspection well lid is set for the maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communication, cable television, gas pipe, street lamp line and is convenient to install. In order to prevent pedestrians and vehicles from accidentally falling into the inspection well, to protect people's life safety, to close the well mouth, to prevent rainwater, sundries and the like from entering the pipeline, to ensure the normal operation of the pipeline, and to enable the staff to check, maintain and clean the underground pipeline by opening the well lid, the size of the well lid with different functions is not the same, and the reserved hole position is also not the same.

[0003] The current inspection well lid lifting device cannot adjust the hook position according to the hole on the well lid with different sizes, cannot adjust the hook position to adapt to different well lid holes, and can cause the connection between the hook and the hole to be not firm, the well lid to easily shake, tilt or even fall off during the lifting process, and the device to have low applicability. UTILITY MODEL CONTENTS

[0004] The utility model discloses a synchronous lifting construction device for inspection well lid, through fixed link, positive and negative motor, two -way screw rod, sliding block, hook, can adjust the distance between two hooks, can carry out hook position adjustment according to the hole position on the well lid, adjustable hook spacing can flexibly respond to various sizes of well lid, whether it is the large -scale well lid commonly seen on the municipal road or the small well lid in the community, can easily adapt, and the applicability is stronger, and through the setting of small -size air cylinder, limiting plate, antiskid pad, can limit the well lid when it leaves the ground, reduce the falling or accident caused by the shaking of the well lid.

[0005] To achieve the above object, the utility model further provides a synchronous lifting construction device for inspection well lid, which comprises a top plate, an electric hoist is fixedly connected to the upper surface of the top plate, a connecting head is fixedly connected to the output end of the electric hoist, a lifting rope is movably connected to the lower surface of the connecting head, a lifting plate is fixedly connected to the lower end of the lifting rope, a fixed link is fixedly connected to the lower surface of the lifting plate, a groove is arranged in the fixed link, a positive and negative motor is fixedly connected to the left surface of the fixed link, a two -way screw rod is fixedly connected to the output end of the positive and negative motor, a sliding block is slidably connected to the inner surface of the groove, a hook is fixedly connected to the lower surface of the sliding block, a connecting plate is fixedly connected to the lower surface of the lifting plate, a small -size air cylinder is fixedly connected to the front surface of the connecting plate, a limiting plate is fixedly connected to the output end of the small -size air cylinder, and an antiskid pad is fixedly connected to the inner surface of the limiting plate.

[0006] According to the manhole cover synchronous lifting construction device, the forward and reverse motor is electrically connected with an external power source, the inner surface of the sliding block is threadedly connected with the bidirectional threaded screw rod, the bidirectional threaded screw rod is driven to rotate through the rotation of the output end of the forward and reverse motor, and the two sliding blocks on the bidirectional threaded screw rod and the hooks move in opposite directions to adjust the distance between the two hooks, and the distance between the two hooks is adjusted according to the holes on manhole covers of different sizes.

[0007] According to the manhole cover synchronous lifting construction device, the electric hoist and the small air cylinder are electrically connected with an external power source, and the output end of the small air cylinder is slidably connected with the connecting plate.

[0008] According to the manhole cover synchronous lifting construction device, the upper surface of the limiting plate is slidably connected with the lifting hanging plate, and the upper surface of the anti-skid pad is slidably connected with the lifting hanging plate.

[0009] According to the manhole cover synchronous lifting construction device, the lower surface of the top plate is fixedly connected with a support column, and the lower surface of the support column is fixedly connected with a support plate.

[0010] According to the manhole cover synchronous lifting construction device, the number of the sliding blocks and the hooks is two and is distributed on the left and right sides, and the right surface of the support column is fixedly connected with a buffer pad.

[0011] According to the manhole cover synchronous lifting construction device, the lower surface of the support plate is fixedly connected with four locking wheels which are distributed in a rectangular shape.

[0012] Additional aspects and advantages of the present application will be further understood from the following detailed description and from the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below with reference to the drawings and examples.

[0014] Figure 1 It is a whole structure schematic view of the manhole cover synchronous lifting construction device.

[0015] Figure 2 It is a partial structure schematic view of the manhole cover synchronous lifting construction device.

[0016] Figure 3 For Figure 2 The structure amplification schematic view of the middle A;

[0017] Figure 4 The connecting plate structure schematic view of the inspection well lid synchronous lifting construction device.

[0018] Legend:

[0019] 1, top plate; 2, electric hoist; 3, connecting head; 4, lifting rope; 5, lifting hanging plate; 6, fixed rod; 7, groove; 8, forward and reverse motor; 9, two-way threaded screw; 10, sliding block; 11, lifting hook; 12, connecting plate; 13, small air cylinder; 14, limiting plate; 15, buffer pad; 16, non-slip pad; 17, support column; 18, support plate; 19, locking wheel. DETAILED DESCRIPTION

[0020] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0021] Referring to Figures 1-4The utility model discloses an inspection well lid synchronous promotion construction device, include: roof 1, the upper surface fixed connection of roof 1 has electric hoist 2, electric hoist 2, small -size air cylinder 13 all with external power supply electric connection, the output of electric hoist 2 fixed connection has connector 3, the lower surface swing joint of connector 3 has the lifting rope 4, the lower fixed connection of lifting rope 4 has the promotion hanging plate 5, through the start electric hoist 2 drive lifting rope 4 and promotion hanging plate 5 move, can hang up the well lid on promotion hanging plate 5, the lower surface fixed connection of promotion hanging plate 5 has fixed link 6, the inside setting of fixed link 6 has recess 7, the left surface fixed connection of fixed link 6 has positive and negative motor 8, positive and negative motor 8 with external power supply electric connection, the output fixed connection of positive and negative motor 8 has two -way screw rod 9, the inner surface sliding connection of recess 7 has sliding block 10, the inner surface of sliding block 10 is connected with two -way screw rod 9 threadedly, the lower surface fixed connection of sliding block 10 has lifting hook 11, and the output of positive and negative motor 8 drive two -way screw rod 9 rotates, and two sliding blocks 10 on two -way screw rod 9 and lifting hook 11 reverse movement can adjust the distance between two lifting hooks 11 and be consistent with the hole position on the well lid, through the hook 11 is inserted to the well lid hole position, and the start electric hoist 2 can hang up the well lid, the lower surface fixed connection of promotion hanging plate 5 has connecting plate 12, the front surface fixed connection of connecting plate 12 has small -size air cylinder 13, the output fixed connection of small -size air cylinder 13 has limit stop 14, the output of small -size air cylinder 13 and connecting plate 12 slidingly connect, the upper surface of limit stop 14 and promotion hanging plate 5 slidingly connect, the inner surface fixed connection of limit stop 14 has antiskid pad 16, the upper surface of antiskid pad 16 and promotion hanging plate 5 slidingly connect, when the well lid leaves the ground position, start small -size air cylinder 13 drive limit stop 14 and antiskid pad 16 move and limit the well lid, prevent the well lid from when hanging under the action of lifting hook 11 and produce the shake, the lower surface fixed connection of roof 1 has support column 17, the lower surface fixed connection of support column 17 has support plate 18, and support column 17 and support plate 18 support the effect of the device, the number of sliding block 10 and lifting hook 11 is two and left and right distribution, the right surface fixed connection of support column 17 has buffer pad 15, and the setting buffer pad 15 prevents the damage that the shake when the well lid hangs up causes support column 17, and buffer pad 15 plays the role of buffering, the lower surface fixed connection of support plate 18 has locking wheel 19, the number of locking wheel 19 is four and rectangular distribution, can move the device through locking wheel 19.

[0022] Working principle: in use, according to the hole on the manhole cover of different size adjust the position between two hooks 11, start the positive and negative motor 8, the output end of positive and negative motor 8 drive the two-way threaded screw rod 9 rotation, two-way threaded screw rod 9 on the two sliders 10 and hook 11 reverse movement, adjust the distance between two hooks 11 and the hole position on the manhole cover consistent, through the hook 11 inserted to the manhole cover hole position, start the electric hoist 2 drive the lifting rope 4 and lifting plate 5 movement, can be lifted manhole cover, when the manhole cover leaves the ground position, start small cylinder 13 drive the limit plate 14 and non-slip mat 16 movement to limit the manhole cover, prevent the manhole cover from shaking under the action of hook 11 when lifting, the device can adjust the distance between two hooks 11, can be adjusted according to the hole position on the manhole cover, adjustable hook 11 spacing can be flexible to respond to various sizes of manhole cover, whether it is a common large manhole cover on the municipal road, or small manhole cover in the community, can easily adapt, more suitable, and can be limited when the manhole cover leaves the ground, reduce the manhole cover shaking and cause the fall or accident.

[0023] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, within the knowledge range of ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A synchronous lifting construction device for inspection manhole covers, characterized in that, The utility model relates to a lifting device for roof, including: The upper surface of top plate (1) is fixedly connected with electric hoist (2), the output of electric hoist (2) is fixedly connected with connecting head (3), the lower surface of connecting head (3) is movably connected with sling (4), the lower end of sling (4) is fixedly connected with lifting hanging plate (5), the lower surface of lifting hanging plate (5) is fixedly connected with fixed rod (6), the inside of fixed rod (6) is provided with recess (7), the left surface of fixed rod (6) is fixedly connected with reversible motor (8), the output of reversible motor (8) is fixedly connected with bidirectional screw rod (9), the inner surface of recess (7) is slidably connected with sliding block (10), the lower surface of sliding block (10) is fixedly connected with lifting hook (11), the lower surface of lifting hanging plate (5) is fixedly connected with connecting plate (12), the front surface of connecting plate (12) is fixedly connected with small -size air cylinder (13), the output of small -size air cylinder (13) is fixedly connected with limit board (14), the inner surface of limit board (14) is fixedly connected with antiskid pad (16).

2. The synchronous lifting construction device for inspection well lid according to claim 1, characterized in that, The reversible motor (8) is electrically connected with external power supply, the inner surface of the sliding block (10) is threadedly connected with the bidirectional screw rod (9).

3. The synchronous lifting construction device for inspection well lid according to claim 1, characterized in that, The electric hoist (2) and small -size air cylinder (13) are electrically connected with external power supply, and the output of the small -size air cylinder (13) is slidably connected with the connecting plate (12).

4. The synchronous lifting construction device for inspection well lid according to claim 1, characterized in that, The upper surface of the limit board (14) is slidably connected with the lifting hanging plate (5), and the upper surface of the antiskid pad (16) is slidably connected with the lifting hanging plate (5).

5. The synchronous lifting construction device for inspection well lid according to claim 1, characterized in that, The lower surface of the top plate (1) is fixedly connected with the support column (17), and the lower surface of the support column (17) is fixedly connected with the support plate (18).

6. A synchronous construction device for lifting a manhole cover according to claim 5, characterized in that, The number of the sliding block (10) and the lifting hook (11) is two and is distributed left and right, and the right surface of the support column (17) is fixedly connected with the buffer pad (15).

7. A synchronous construction device for lifting a manhole cover according to claim 6, characterized in that, The lower surface of the support plate (18) is fixedly connected with the locking wheel (19), and the number of the locking wheel (19) is four and is rectangularly distributed.