CN108978725B

CN108978725B - adjustable manhole cover with square outside and round inside and installation and adjustment method thereof

Info

Publication number: CN108978725B
Application number: CN201810985798.8A
Authority: CN
Inventors: 张欣烁; 张军杰
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2020-01-31
Anticipated expiration: 2038-08-28
Also published as: CN108978725A

Abstract

The invention relates to adjustable outer square and inner circular well lids and an installation and adjustment method thereof, wherein the adjustable outer square and inner circular well lids comprise outer square and inner circular well lids at the upper part, independent bearing modules at the lower part and adjusting bolts connected and supported between the independent bearing modules, the number of the independent bearing modules is 4, bearing parts are positioned on a road base layer, each adjusting bolt comprises a bolt rod at the lower part, a body type nut in the middle and a polish rod at the upper part, the bolt rod is in threaded connection with a reserved screw hole on the bearing module, the diameter of the body type nut is larger than the diameter of the reserved through hole on the well lid to support the surface of the outer square and inner circular well lids at the upper part to be flush with the road surface, the polish rod penetrates through the reserved through hole of the outer square and inner circular well lids, and the end surface of the polish rod is provided with a clamping port.

Description

adjustable manhole cover with square outside and round inside and installation and adjustment method thereof

Technical Field

The invention relates to the municipal field, in particular to adjustable outer square inner circular manhole covers and an installation and adjustment method thereof.

Background

The urban road is provided with a plurality of inspection wells, wherein the inspection wells comprise different types such as sewage, rainwater, tap water, communication, electric power, heat supply, gas and the like, and the problems are found in the use process that the opening parts of the inspection wells are often settled, the peripheral road surfaces are easy to damage, and serious noise and potential safety hazards are generated.

For example, the published patent application ' anti-settling adjustable well lid ' (CN 2014106782479), but the well lid form is still round, the construction quality problem of a joint part is not solved, and the adjustable method is complex. waterproof, deodorant and anti-theft type closed well lid ' (CN 2563192Y) is of an outer square and inner round type but cannot be adjusted, and meanwhile, the base is a whole.

Disclosure of Invention

The invention aims to provide adjustable square-outside and round-inside manhole covers which can flexibly and dynamically adjust the height of the manhole cover, are modularized, can be conveniently replaced and have the characteristic of saving materials.

The technical scheme adopted by the invention is as follows:

an adjustable manhole cover with an outer square and an inner circle is characterized in that the manhole cover comprises an upper outer square and an inner circle manhole cover, a lower independent bearing module and an adjusting bolt connected and supported between the upper outer square and the inner circle manhole cover and the lower independent bearing module, wherein a circular movable cover plate is arranged in the middle of the outer square and the inner circle manhole cover, the diameter of the circular movable cover plate corresponds to that of a lower circular shaft, reserved through holes are formed in four corners of the outer square and the inner circle manhole cover, 4 independent bearing modules are correspondingly distributed at four corners of the outer square and the inner circle manhole cover, a bearing part of each independent bearing module is located on a road base layer, a reserved screw hole is formed in each independent bearing module, a counter bore is formed in the upper part of each reserved screw hole, each adjusting bolt comprises a bolt rod at the lower part, a body type nut at the middle part and a polished rod at the upper part, each bolt rod is in threaded connection with the reserved screw hole in each bearing module, the height of each adjusting bolt is adjusted up and down through rotation, the diameter of each 32 body type nut is larger than the diameter of each reserved through hole to support the surface of the upper square and enable the surface of the outer square and the inner circle manhole cover to be flush with the polished rod of the polished rod, the outer square and the inner circle manhole cover, the inner nut.

As a preferred scheme of the invention, the clamping port can be selected from different forms such as -shaped, cross-shaped and the like, the size of the independent bearing module is smaller than that of the upper well cover, the independent bearing module is connected with the outer square inner circular well cover of the upper layer through 3 adjusting bolts, and unevenness caused by settlement is adjusted by rotating the adjusting bolts.

In the technical scheme, the square well lid can solve the problem of connection with the surrounding road surface, the possibility of reduction of construction quality of the road surface at the connection part is reduced, although the size of the well lid is larger than that of the well lid in the conventional method, safety and flexibility are greatly improved, and the existing problem is well solved; the shape of 4 independent bearing modules is square well lid get rid of the pattern that forms in the four corners behind the middle circular, the size is slightly littleer than upper portion well lid, so that upper portion well lid can cover lower part bearing module, the bearing position is located road bed, it is different all around to be located the well with traditional circular well lid bearing position, every bearing module passes through 3 adjusting bolt and is connected with upper well lid, independent bearing module bears upper portion weight, and subside the unevenness problem that brings through the adjusting bolt adjustment, screw and counter bore are reserved in the bearing module in order to pass through threaded connection with adjusting bolt.

The installation and adjustment method of the adjustable manhole cover with the square outside and the round inside comprises the following steps:

when the well lid is settled, the adjusting bolt at the settlement part is rotated to lift the well lid upwards, the outer square inner circular well lid at the upper part is lifted to the same elevation as the surrounding pavement, then other bolts are adjusted, the elevation of the well lid and the surrounding pavement is naturally leveled, and the road is restored to be level.

The invention has the beneficial effects that: aiming at the main reasons of the problems of the existing road well lid, the invention fully considers the possible situations in different stages, avoids various possibilities of problems in construction, use and maintenance stages by pertinently taking design measures, and simultaneously has convenient and economic operation, thereby ensuring safe and comfortable use of daily roads. The independent bearing module is adopted at the lower part of the manhole cover, so that the manhole cover has the advantages of reducing the weight of the manhole cover, saving materials, being modularized, universal and replaceable and the like.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a split structure of the present invention;

FIG. 3 is a schematic view of the installation position relationship of the present invention;

in the figure, 1 outer square and inner circular well cover, 1.1 circular movable cover plate, 1.2 reserved through holes, 2 adjusting bolts, 2.1 polished rods, 2.2 body type screw caps, 2.3 bolt rods, 3 independent bearing modules, 3.1 reserved screw holes, 4 well ways, 5 road base layers and 6 road surface layers are arranged.

Detailed Description

The present invention will be specifically described below with reference to specific examples.

Example 1

As shown in fig. 1-3, specific embodiments of the adjustable external square internal circular manhole cover of the invention are shown, the embodiments include an upper external square internal circular manhole cover 1, a lower independent bearing module 3 and an adjusting bolt 2 connected and supported between the two, wherein the external square internal circular manhole cover is made of cast iron, the middle part of the external square internal circular manhole cover is a circular movable cover plate 1.1, the diameter of the circular movable cover plate corresponds to that of a lower circular well 4, through holes 1.2 are reserved at four corners of the external square internal circular manhole cover, the number of the independent bearing modules is 4, the size of the independent bearing modules is smaller than that of the upper manhole cover, the bearing part of the independent bearing module is located in a road base layer, a screw hole 3.1 is reserved on the independent bearing module, a counter bore is arranged at the upper part of the screw hole, the adjusting bolt is composed of a bolt rod 2.3 at the lower part, a nut 2.2.2 at the middle part and a polish rod 2.1 at the upper part, the bolt rod is in threaded connection with the reserved screw hole, the bolt rod is in threaded connection with the reserved in the screw hole, so that the height of the adjusting bolt can be adjusted up and down by rotating the nut, the adjusting bolt is larger than the diameter of the smooth nut on the outer square inner circular bearing module, the smooth nut on the outer square manhole cover, the inner circular manhole cover, the smooth nut on the smooth nut, the inner circular manhole cover, the smooth nut block is not larger than the smooth nut.

The body type screw cap is twice the diameter of the screw rod, the thickness and the diameter of the counter bore are the same as those of the body type screw cap, each independent bearing module is connected with the outer square inner circular well cover of the upper layer through 3 adjusting bolts, and unevenness caused by settlement is adjusted by rotating the adjusting bolts.

The adjusting method of the adjustable well lid with the outer square and the inner circle comprises the following steps of enabling an body type nut to retract into a counter bore of an independent bearing module by rotating an adjusting bolt during initial installation, enabling the well lid with the outer square and the inner circle to be directly connected with the independent bearing module, enabling the well lid to rise upwards by rotating the adjusting bolt at a settlement position when the well lid is settled, lifting the well lid with the outer square and the inner circle at the upper part to the same elevation as the surrounding pavement, then adjusting other bolts, naturally leveling the well lid and the surrounding pavement elevation, and recovering the road leveling.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

The adjustable manhole cover with the outer square and the inner circle is characterized by comprising an upper outer square and inner circle manhole cover (1), a lower independent bearing module (3) and an adjusting bolt (2) connected and supported between the upper outer square and inner circle manhole cover and the lower independent bearing module, wherein a circular movable cover plate (1.1) is arranged in the middle of the outer square and inner circle manhole cover, the diameter of the circular movable cover plate corresponds to that of a lower circular shaft (4), reserved through holes (1.2) are formed in four corners of the outer square and inner circle manhole cover, 4 independent bearing modules are correspondingly distributed in the four corners of the outer square and inner circle manhole cover, bearing parts of independent bearing base layer modules are located in a road (5), screw holes (3.1) are reserved in the independent bearing modules, counterbores are formed in the upper portions of the reserved screw holes, the adjusting bolt is composed of a lower bolt rod (2.3), a middle type nut (2.2) and an upper polish rod (2.1), the bolt rod is in threaded connection with the reserved screw holes in the independent bearing modules, the bolt rods are in a threaded connection mode, the height of the adjusting bolt can be adjusted by rotating to enable the bolt rods of the bolt rods, the outer square and the nut to be not more than that the diameter of the nut on the outer square and the inner circle nut, the diameter of the outer square and the nut are not more than the nut, the.
2. The adjustable outer square inner circular manhole cover of claim 1, wherein the fastening port is shaped like or cross.
3. The adjustable outer square inner circular manhole cover of claim 1, wherein the nut has twice the diameter of the bolt.
4. The adjustable outer square inner circular well cover of claim 1, wherein the counter bore has a thickness and a diameter identical to those of an body type screw cap.
5. The adjustable outer square inner circular manhole cover of claim 1, wherein: the size of the independent bearing module is smaller than that of the upper well cover.
6. The adjustable outer square inner circular manhole cover of claim 1, wherein: the independent bearing module is connected with the outer square inner circular well lid on the upper layer through 3 adjusting bolts, and unevenness caused by settlement is adjusted through rotating the adjusting bolts.
7. The adjustable outer square inner circular manhole cover of claim 1, wherein: the well lid adopts the cast iron material.
8. The method for installing and adjusting the adjustable square-outside and round-inside manhole cover as claimed in any of claims 1-7, wherein the method comprises the steps of rotating the adjusting bolt to retract the body type nut into the counter bore of the independent bearing module during initial installation to directly connect the square-outside and round-inside manhole cover and the independent bearing module, rotating the adjusting bolt at the subsidence position to lift the upper square-outside and round-inside manhole cover to the same elevation as the surrounding pavement when the manhole cover is settled, and then adjusting other bolts to naturally level the elevation of the manhole cover and the surrounding pavement and restore the smoothness of the road.