Lifting type well lid mounting auxiliary device
By designing an auxiliary device for installing lifting manhole covers, the height of the manhole cover can be adjusted using a cross-shaped bracket and lifting bolts. This solves the problem of the difficulty in leveling heavy manhole covers, achieving a level surface between the manhole cover and the road surface while reducing construction difficulty and physical exertion.
Patent Information
- Application Number
- CN202520518613.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Heavy manhole covers are difficult to level, resulting in poor installation quality and high construction difficulty. There is an urgent need for an auxiliary device to reduce the difficulty of operation and physical labor consumption.
A lifting manhole cover installation auxiliary device was designed, including a cross-shaped bracket, support legs, lifting bolts, and a manhole base bracket. The height of the manhole cover is adjusted to be flush with the road surface by lifting bolts. The structure is formed by welding square tubes and angle steel.
It reduces the difficulty of manhole cover installation, reduces the physical exertion of construction workers, and ensures that the manhole cover is level with the road surface. The device requires less material, is simple to manufacture, and can be reused.
Smart Images
Figure CN223937212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the installation and construction of road manhole covers, specifically a lifting manhole cover installation auxiliary device. Background Technology
[0002] In a certain underground integrated utility tunnel construction project undertaken by our company, manhole covers need to be installed at the manhole openings of the project roads. The manhole covers located on the main roads are all heavy-duty covers with good load-bearing capacity. The installed manhole covers should be level with the road surface, but leveling heavy-duty covers is difficult. To improve the quality of manhole cover installation, ensure that the installed manhole covers are level with the road surface, and reduce construction difficulty, an auxiliary device for manhole cover installation is urgently needed. Summary of the Invention
[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a lifting manhole cover installation auxiliary device, suitable for on-site installation of road manhole covers and frames, which is achieved through the following technical solution:
[0004] A lifting manhole cover installation auxiliary device includes a cross-shaped bracket, legs, lifting bolts, and a manhole base bracket. The legs are set at the four outer feet of the cross-shaped bracket. A kidney-shaped hole is opened on the cross-shaped bracket inside each leg. The lifting bolt is connected to the kidney-shaped hole. The lower end of the lifting bolt is extended and a positioning nut is connected to the lower end. The manhole base bracket is welded to the positioning nut.
[0005] A further preferred technical solution is that: the cross-shaped bracket is made of two 50*50*3.5mm square tubes cut into 1200mm lengths, with a 20mm diameter hole drilled in the center of the square tubes, and a screw is used to connect the two square tubes in a cross shape through the hole.
[0006] A further preferred technical solution is that the support leg is made of a 50*50*3.5mm square tube with a length of 250mm, and is welded to a cross-shaped bracket.
[0007] A further preferred technical solution is that the kidney hole is 50mm long and is located 68mm from the end of the square tube of the cross-shaped support.
[0008] A further preferred technical solution is that the well base bracket is made of 50*50*3mm angle steel cut into 50mm lengths, and welded to the positioning nut on the back.
[0009] Using the lifting manhole cover installation auxiliary device of this utility model can greatly reduce the difficulty of manhole cover installation and reduce the physical exertion of construction personnel, and can ensure that the installed manhole cover is level with the road surface; the device requires few types of materials, is simple to manufacture, is easy to store and use, and is reusable. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the cross-shaped support structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the structure of a single support component of this utility model;
[0014] Figure 4 This is a schematic diagram of the well base support structure of this utility model;
[0015] Figure 5 This is a schematic diagram of the lifting bolt structure of this utility model;
[0016] Figure 6 This is a schematic diagram of the usage state of this utility model.
[0017] In the diagram: 1-cross-shaped bracket, 2-outrigger, 3-lifting bolt, 4-positioning nut, 5-well base bracket. Detailed Implementation
[0018] 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.
[0019] like Figure 1-6 As shown in the preferred embodiment, a lifting manhole cover installation auxiliary device is provided, including a cross-shaped bracket 1, support legs 2, lifting bolts 3, and manhole base bracket 5. First, a 50*50*3.5 square tube is cut into 1200mm lengths. A 20mm diameter hole is drilled at the center of the 600mm section of the square tube. An A18 screw is used to pass through the hole and connect the two square tubes in a cross shape to obtain the cross-shaped bracket 1. Then, support legs 2, each 250mm long, are welded in four directions.
[0020] Then, make a 50mm waist hole to the left at the 68mm side length of the cross-shaped bracket 1; cut the 50*50*3 angle steel into 50mm lengths, and weld the A18 positioning nut 4 on the back to make the well base bracket 5.
[0021] The well base installation auxiliary device of this application is obtained by passing an A18 lifting bolt 3 through the opening of the square tube and connecting it with the well base bracket 5.
[0022] When in use, place the manhole cover on the angle steel of the manhole cover bracket 5 at the manhole opening, rotate the M18 bolt of the lifting bolt 3 to raise or lower the manhole cover, and adjust it with a level ruler to the height level with the road surface before proceeding with the next steps.
[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A lifting manhole cover installation auxiliary device, characterized in that, The system includes a cross-shaped bracket (1), legs (2), lifting bolts (3) and a well base bracket (5). The legs (2) are set at the four outer feet of the cross-shaped bracket (1). A kidney hole is opened on the cross-shaped bracket (1) on the inner side of each leg (2). The lifting bolt (3) is connected in the kidney hole. The lower end of the lifting bolt (3) is extended and a positioning nut (4) is connected to the lower end. The well base bracket (5) is welded on the positioning nut (4).
2. The lifting manhole cover installation auxiliary device according to claim 1, characterized in that, The cross-shaped bracket (1) is made of two 50*50*3.5mm square tubes cut into 1200mm lengths. A 20mm diameter hole is made in the center of the square tube, and a screw is used to pass through the hole to connect the two square tubes in a cross shape.
3. The lifting manhole cover installation auxiliary device according to claim 1, characterized in that, The support leg (2) is made of a 50*50*3.5mm square tube with a length of 250mm, and is welded to the cross-shaped bracket (1).
4. The lifting manhole cover installation auxiliary device according to claim 1, characterized in that, The kidney hole is located 68 mm from the end of the square tube of the cross-shaped bracket (1).
5. The lifting manhole cover installation auxiliary device according to claim 1, characterized in that, The well base bracket (5) is made of 50*50*3mm angle steel cut into 50mm lengths and welded to the positioning nut (4) on the back.