1. A dynamic control trolley for installing a manhole cover of a municipal road inspection well comprises a movable trolley and an installation mechanism, and is characterized in that the movable trolley comprises a frame cross beam (1), four stand columns (3) are fixedly installed at the bottom of the frame cross beam (1), a handle (2) is fixedly installed at one end of the frame cross beam (1), universal wheels (5) are installed at the bottoms of the stand columns (3), and a brake piece (6) is also installed at the bottom of the stand column (3);

the frame cross beam (1) is provided with two parallel through holes penetrating through the frame cross beam (1), the mounting mechanism comprises a threaded rod (7), a limiting plate (9) fixedly mounted on the frame cross beam (1) and a locking nut (8) sleeved on the threaded rod (7), and the limiting plate (7) is provided with a through hole opposite to the frame cross beam (1);

the threaded rod (7) comprises a threaded part (71) and a lifting part (72), a handle (73) is fixedly mounted at one end of the threaded part (71) opposite to the lifting part (72), a lifting bulge (74) is fixedly mounted at one end of the lifting part (72) opposite to the threaded part, and threads are arranged on the threaded part;

the end, opposite to the lifting portion (72), of the threaded portion (71) is provided with a sleeving groove (711), the end, opposite to the threaded portion (71), of the lifting portion (72) is provided with a connecting rod (721), the end portion of the connecting rod (721) is fixedly connected with a clamping block (722), a circle of steel balls (712) distributed in an annular array mode are arranged between the bottom of the clamping block (722) and the sleeving groove (711), and the clamping block (722) is in rotating fit with the sleeving groove (711) through the steel balls (712).

2. The dynamic control trolley for installing the manhole cover of the municipal road inspection well is characterized in that one end of an oblique beam (4) is fixedly connected to the bottom of the frame cross beam (1), and the other end of the oblique beam (4) is fixedly connected with the upright post (3).

3. The dynamic control trolley for installing the manhole cover of the municipal road inspection well is characterized in that the brake piece (6) comprises two framework frames (61) which are arranged in parallel, the framework frames (61) are of an L-shaped structure, one end of each framework frame (61) is rotatably connected with the bottom of the upright post (3), the other end of each framework frame (61) is rotatably provided with a pedal (65), one end of each pedal (65) is connected with one end of a first return spring (64), the other end of each first return spring (64) is fixedly connected with the framework frame (61), one end of each framework frame (61) connected with the upright post (3) is fixedly connected with one end of a second return spring (62), and the other end of each second return spring (62) is fixedly connected with the side wall of the upright post (3);

a compression roller (63) is fixedly connected between the two framework frames (61), and wear-resistant rubber is arranged on the surface of the compression roller (63).

4. The construction method of the dynamic control trolley for installing the manhole cover of the municipal road manhole according to claim 1, comprising the following steps:

step one, rotating a lifting part (72) to enable a lifting bulge (74) to be parallel to a well base positioning hole of the inspection well cover, enabling the lifting part (72) to penetrate through the positioning hole, and then rotating the lifting part (72) to enable the lifting part to be vertical to the well base positioning hole of the inspection well cover so as to prevent sliding;

moving the manhole cover to the position above the manhole through the movable trolley, and adjusting the thread part (71) to lower the manhole cover; an expansion screw is driven into the well ring reinforced concrete poured in advance along the well seat positioning hole, and the position of the well cover is preliminarily stabilized;

step three, after the installation elevation of the well lid is calibrated along the two lines of the pavement, the threaded part (71) is slowly adjusted to control the well lid to reach the designed elevation; after reaching the design elevation, stabilizing the position of the well cover under the well seat through a gasket; tightening the expansion screw to stabilize the position of the well cover again; rotating the lifting part (72) to enable the lifting protrusion (74) to be parallel to the well seat positioning hole of the inspection well cover, lifting the lifting part (72), and removing the trolley; and secondary pouring of the well ring reinforced concrete.

Background

At present, municipal road underground pipelines are various in variety, and in order to ensure that the pipelines are convenient to install during construction and convenient to overhaul in later period, it is necessary to arrange inspection wells at certain intervals. Because of the inspection shaft is located town personnel home range, guarantee simultaneously that no foreign matter gets into in the well for guaranteeing personnel's safety, the inspection shaft all need install the well lid.

However, the weight of the municipal road heavy ductile cast iron well cover which is widely used at present ranges from 81 kg to 128kg, the traditional manhole cover installation process still adopts manual installation, and the defects and risks are large in the aspects of working efficiency and safety management. After the well lid is installed, the elevation requirement is the same as that of the road surface, but because the well lid is heavy, the elevation control of the well lid installation is the control difficulty of the traditional process, and the road surface jumping phenomenon is increasingly a key factor influencing the driving comfort along with the increase of the well lid and the instability of the installation quality. The municipal road inspection well lid installation device which is simple in structure and convenient to construct is needed to improve the traditional installation process.

Disclosure of Invention

The invention aims to provide a dynamic control trolley for installing a manhole cover of a municipal road inspection well and a construction method thereof.

The purpose of the invention can be realized by the following technical scheme:

a dynamic control trolley for installing a manhole cover of a municipal road inspection well comprises a movable trolley and an installation mechanism, wherein the movable trolley comprises a frame cross beam, four stand columns are fixedly installed at the bottom of the frame cross beam, a handle is fixedly installed at one end of the frame cross beam, universal wheels are installed at the bottoms of the stand columns, and a brake piece is also installed at the bottoms of the stand columns;

the frame cross beam is provided with two parallel through holes penetrating through the frame cross beam, the mounting mechanism comprises a threaded rod, a limiting plate fixedly mounted on the frame cross beam and a locking nut sleeved on the threaded rod, and the limiting plate is provided with a through hole opposite to the frame cross beam;

the threaded rod comprises a threaded part and a lifting part, a handle is fixedly arranged at one end of the threaded part, which is opposite to the lifting part, a lifting bulge is fixedly arranged at one end of the lifting part, which is opposite to the threaded part, and threads are arranged on the threaded part;

the end of the screw thread part opposite to the lifting part is provided with a sleeving groove, the end of the lifting part opposite to the screw thread part is provided with a connecting rod, the end part of the connecting rod is fixedly connected with a fixture block, a circle of steel balls distributed in an annular array are arranged between the bottom of the fixture block and the sleeving groove, and the fixture block and the sleeving groove are in rotating fit through the steel balls.

As a further scheme of the invention, the bottom of the frame cross beam is fixedly connected with one end of an oblique beam, and the other end of the oblique beam is fixedly connected with the upright post.

As a further scheme of the invention, the brake piece comprises two framework frames which are arranged in parallel, each framework frame is of an L-shaped structure, one end of each framework frame is rotatably connected with the bottom of the stand column, the other end of each framework frame is rotatably provided with a pedal, one end of each pedal is connected with one end of a first return spring, the other end of each first return spring is fixedly connected with the framework frame, one end of each framework frame, which is connected with the stand column, is fixedly connected with one end of a second return spring, and the other end of each second return spring is fixedly connected with the side wall of the stand column;

and a compression roller is fixedly connected between the two framework frames, and wear-resistant rubber is arranged on the surface of the compression roller.

The construction method for installing the dynamic control trolley on the well lid of the municipal road inspection well comprises the following steps:

step one, rotating the lifting part to enable the lifting protrusion to be parallel to a well base positioning hole of the inspection well cover, enabling the lifting part to penetrate through the positioning hole, and then rotating the lifting part to enable the lifting part to be perpendicular to the well base positioning hole of the inspection well cover so as to prevent sliding;

moving the inspection well cover to the upper part of the inspection well through the movable trolley, and adjusting the threaded part to lower the well cover; an expansion screw is driven into the well ring reinforced concrete poured in advance along the well seat positioning hole, and the position of the well cover is preliminarily stabilized;

step three, after the installation elevation of the well lid is calibrated along the two lines of the pavement, the threaded part is slowly adjusted to control the well lid to reach the designed elevation; after reaching the design elevation, stabilizing the position of the well cover under the well seat through a gasket; tightening the expansion screw to stabilize the position of the well cover again; rotating the lifting part to enable the lifting protrusion to be parallel to a well seat positioning hole of the inspection well cover, lifting the lifting part, and moving away the trolley; and secondary pouring of the well ring reinforced concrete.

The invention has the beneficial effects that:

1. compared with the traditional manual installation method, the inspection well cover is conveyed by the movable trolley, so that the labor intensity of workers is reduced, the operability is strong, the construction difficulty is small, and the economic benefit is obvious.

2. Compared with the traditional manual installation method, the installation mechanism has stable structure, and reduces the safety risks of well cover smashing, bruising and the like in the installation process.

3. Compared with the traditional manual installation method, the installation mechanism can dynamically adjust the elevation of the well lid in millimeter level, and obviously improves the installation quality of the well lid.

Drawings

The invention is described in further detail below with reference to the figures and specific embodiments.

FIG. 1 is a top view of a control cart according to the present invention;

FIG. 2 is a side view of the control trolley of the present invention;

FIG. 3 is a front view of the control cart of the present invention;

FIG. 4 is a schematic structural view of the brake;

FIG. 5 is a schematic view of a threaded rod;

fig. 6 is a partial schematic view of a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the dynamic control trolley for installing the manhole cover of the municipal road inspection well comprises a moving trolley and an installation mechanism, wherein the moving trolley comprises a frame cross beam 1, four upright posts 3 are fixedly installed at the bottom of the frame cross beam 1, a handle 2 is fixedly installed at one end of the frame cross beam 1, universal wheels 5 are installed at the bottoms of the upright posts 3, and a brake piece 6 is also installed at the bottom of the upright posts 3;

the bottom of the frame cross beam 1 is fixedly connected with one end of an oblique beam 4, the other end of the oblique beam 4 is fixedly connected with the upright post 3, the effect of strengthening the structural stability is achieved,

the brake part 6 comprises two framework frames 61 which are arranged in parallel, the framework frames 61 are of L-shaped structures, one end of each framework frame 61 is rotatably connected with the bottom of the upright post 3, a pedal plate 65 is rotatably installed at the other end of each framework frame 61, one end of each pedal plate 65 is connected with one end of a first return spring 64, the other end of each first return spring 64 is fixedly connected with the framework frame 61, one end of each framework frame 61, which is connected with the upright post 3, is fixedly connected with one end of a second return spring 62, and the other end of each second return spring 62 is fixedly connected with the side wall of the upright post 3;

a compression roller 63 is fixedly connected between the two framework frames 61, and wear-resistant rubber is arranged on the surface of the compression roller 63;

the frame cross beam 1 is provided with two parallel through holes penetrating through the frame cross beam 1, the mounting mechanism comprises a threaded rod 7, a limiting plate 9 fixedly mounted on the frame cross beam 1 and a locking nut 8 sleeved on the threaded rod 7, the locking nut 8 can fix the position of the threaded rod 7, and the limiting plate 7 is provided with a through hole opposite to the frame cross beam 1;

the threaded rod 7 comprises a threaded part 71 and a lifting part 72, a handle 73 is fixedly arranged at one end of the threaded part 71 opposite to the lifting part 72, a lifting bulge 74 is fixedly arranged at one end of the lifting part 72 opposite to the threaded part, and threads are arranged on the threaded part;

a sleeving groove 711 is formed in one end, opposite to the lifting portion 72, of the threaded portion 71, a connecting rod 721 is arranged at one end, opposite to the threaded portion 71, of the lifting portion 72, a clamping block 722 is fixedly connected to the end of the connecting rod 721, the clamping block 722 is matched with the sleeving groove 711, a circle of steel balls 712 distributed in an annular array are arranged between the bottom of the clamping block 722 and the sleeving groove 711, and the clamping block 722 is rotatably matched with the sleeving groove 711 through the arrangement of the steel balls;

the working method of the dynamic control trolley for installing the manhole cover of the municipal road inspection well comprises the following steps:

step one, rotating the lifting part 72 to enable the lifting protrusion 74 to be parallel to a well base positioning hole of the inspection well cover, enabling the lifting part 72 to penetrate through the positioning hole, and then rotating the lifting part 72 to enable the lifting part to be vertical to the well base positioning hole of the inspection well cover so as to prevent sliding;

moving the manhole cover to the upper part of the manhole through a movable trolley, and adjusting the thread part 71 to lower the manhole cover; an expansion screw is driven into the well ring reinforced concrete poured in advance along the well seat positioning hole, and the position of the well cover is preliminarily stabilized;

step three, after the installation elevation of the well lid is calibrated along the two lines of the pavement, the threaded part 71 is slowly adjusted to control the well lid to reach the designed elevation; after reaching the design elevation, stabilizing the position of the well cover under the well seat through a gasket; tightening the expansion screw to stabilize the position of the well cover again; rotating the lifting part 72 to make the lifting lug 74 parallel to the well seat positioning hole of the inspection well cover, lifting the lifting part 72, and moving away the trolley; and secondary pouring of the well ring reinforced concrete.

The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.