CN218893442U

CN218893442U - Adjustable well lifting device

Info

Publication number: CN218893442U
Application number: CN202222308846.4U
Authority: CN
Inventors: 卢毅; 解生龙; 曹俊岗; 曹安宁; 智晓国
Original assignee: Nanjing Da Tao Luqiao Construction Co ltd
Current assignee: Nanjing Da Tao Luqiao Construction Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-04-21
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses an adjustable well lifting device which comprises a supporting mechanism and a tensioning mechanism, wherein a butt joint hole is formed in the outer wall of a bracket, and the tensioning mechanism is movably connected in the inner wall of the butt joint hole; the support mechanism comprises a jack, a bracket and a connecting plate, and the tensioning mechanism comprises an iron chain, a connecting ring and an iron hook.

Description

Adjustable well lifting device

Technical Field

The utility model relates to an adjustable well lifter, and belongs to the technical field of road construction.

Background

With the development of society, the development of urban road engineering construction, the evenness and the comfort level of the pavement become an important content for people to evaluate urban quality, the evenness is one of quality defects which are easy to appear in asphalt concrete pavement, the evenness is not the main control item when the quality inspection and evaluation of the asphalt pavement are carried out, but the evenness is also very important, if the defect of the evenness is overcome, the quality qualification rate of the asphalt pavement is greatly improved, the running resistance of the pavement with high evenness is greatly reduced, and the running comfort, the safety and the durability of the pavement are improved. It can be seen that the flatness index is also very important for asphalt pavement.

When the hydraulic jack is used as a lifting tool according to site measurement, the left side and the right side of a well lid after lifting are inconsistent with the height difference of a road surface, the flatness is poor, the filling under the well lid on site is observed, the filling around the well lid is uneven and not compact by a spade, the inconsistent height difference of the well lid and the road surface and the uneven well lid are caused, and the defects of the prior construction technology are overcome.

Disclosure of Invention

The utility model aims to: in order to improve construction efficiency, the utility model provides an adjustable well lifting device.

The technical scheme is as follows: in order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable well lifting device comprises a supporting mechanism and a tensioning mechanism;

the support mechanism comprises a jack, a bracket and a connecting plate, wherein the telescopic end of the jack is fixedly connected with the connecting plate, the top of the connecting plate is fixedly connected with the bracket, a butt joint hole is formed in the outer wall of the bracket, and the tensioning mechanism is movably connected in the inner wall of the butt joint hole;

the tensioning mechanism comprises an iron chain, a connecting ring and an iron hook, wherein the iron chain is movably connected in the inner wall of the butt joint hole, the iron chain is connected with the connecting ring, and the iron hook is connected with the connecting ring.

Preferably: and the bottom of the jack is fixedly connected with a supporting plate.

Preferably: the bottom of the supporting plate is fixedly connected with a foot rest.

Preferably: the number of the brackets is three, and the angles among the brackets are arranged at equal angles of 120 degrees.

Preferably: the iron chain is connected with the connecting ring in a fitting way.

Preferably: the connecting ring is in fit connection with the iron hook.

Preferably: the butt joint hole is in fit connection with the tensioning mechanism, and the butt joint hole is in fit connection with the iron chain.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the support mechanism and the jack are arranged, so that the labor is saved, the overall construction efficiency is improved, and the lifting well cover of the jack is arranged, so that the manual pushing and pulling force application is not needed in the whole process, and the labor resource is saved.

2. According to the utility model, the well lid is convenient to be stressed uniformly and smooth when being lifted by the jack through the supporting mechanism, the jack, the bracket, the connecting plate, the tensioning mechanism, the iron chain, the connecting ring, the iron hook and the butt joint hole, the filler is compact, the later repair rate is low, the well lid is hooked by the three iron hooks, and the three iron chains and the well lid form 120 degrees, so that the well lid is stressed uniformly, the construction of a combined tool is realized, the repeated utilization is realized, the personnel investment is reduced, the semi-mechanization of the well lifting construction is realized, and the construction progress is accelerated

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a schematic view of the structure of the supporting mechanism of the present utility model;

FIG. 3 is a schematic view of the structure of the tensioning mechanism of the present utility model;

fig. 4 is a schematic view of the pallet structure according to the present utility model.

Fig. 5 is a schematic view of the construction process of the present utility model.

In the figure: 1. a support mechanism; 101. a jack; 102. a bracket; 103. a splice plate; 2. a tensioning mechanism; 201. an iron chain; 202. a connecting ring; 203. an iron hook; 3. a butt joint hole; 4. a supporting plate; 5. and (5) a foot rest.

Detailed Description

The present utility model is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the utility model and not limiting of its scope, and various equivalent modifications to the utility model will fall within the scope of the appended claims to the skilled person after reading the utility model.

An adjustable well lifting device, as shown in figures 1-5, comprises a supporting mechanism 1 and a tensioning mechanism 2;

the supporting mechanism 1 comprises a jack 101, a bracket 102 and a connecting plate 103, wherein the telescopic end of the jack 101 is fixedly connected with the connecting plate 103, the top of the connecting plate 103 is fixedly connected with the bracket 102, a butt joint hole 3 is formed in the outer wall of the bracket 102, and the tensioning mechanism 2 is movably connected in the inner wall of the butt joint hole 3; the bottom of the jack 101 is fixedly connected with a supporting plate 4. The butt joint hole 3 is in fit connection with the tensioning mechanism 2, and the butt joint hole 3 is in fit connection with the iron chain 201. The bottom of the supporting plate 4 is fixedly connected with a foot rest 5. The whole lifting tool is supported conveniently by the foot rest 5. The labor cost is saved through the supporting mechanism 1, and the whole construction efficiency is improved.

The tensioning mechanism 2 comprises an iron chain 201, a connecting ring 202 and an iron hook 203, wherein the iron chain 201 is movably connected in the inner wall of the butt joint hole 3, the iron chain 201 is connected with the connecting ring 202, and the iron hook 203 is connected with the connecting ring 202. The iron chain 201 is in fit connection with the connecting ring 202. The connecting ring 202 is in fit connection with the iron hook 203. The iron chain 201 and the bracket 102 are connected through the butt joint hole 3. The well lid is convenient to lift through the tensioning mechanism 2, and the well lid atress is even.

The iron chain 201 is connected with the connecting ring 202 in a fitting way, the connecting ring 202 is connected with the iron hook 203 in a fitting way, and the iron hook 203 is convenient to fasten the well cover through the fitting connection between the connecting ring 202 and the iron hook 203.

The butt joint hole 3 is in fit connection with the tensioning mechanism 2, the butt joint hole 3 is in fit connection with the iron chain 201, and the butt joint hole 3 is in fit connection with the iron chain 201 to facilitate angle adjustment.

The number of the brackets 102 is three, and the angles among the brackets 102 are equal to 120 degrees. The well cover is uniformly stressed when being lifted by arranging the brackets 102 at an equal angle of 120 degrees.

When the well lifting tool is used, the well lifting tool is placed in the right center of a well cover, the three iron hooks 203 are respectively hooked on the well cover, 120 degrees are formed between the three iron chains 201 and the well cover, then the connecting plate 103 connected with the hydraulic jack 101 is jacked up, the support 102 connected with the connecting plate 103 is lifted, the iron chains 201 are pulled by the lifting of the support 102, the iron chains 201 pull the connected iron hooks 203, and the well cover is lifted by the pulling of the iron hooks 203.

An adjustable lifting device auxiliary asphalt pavement detection well closing construction process comprises the following steps:

and step 1, determining a construction plan, determining a closed traffic time, coordinating with a management party, and preparing construction equipment and materials according to construction.

Step 2, inspection well internal mold manufacturing

The internal mold is in a lower-buckling cylindrical shape supported by four thick steel plates, the steel sheet supports are flush with the pavement to be paved, the bottom surface of the internal mold is provided with cross reinforcing ribs with the diameter of 12mm, the top of the internal mold is provided with a movable handle, and the internal mold is automatically dropped down during operation and is used for lifting the internal mold after use, so that synchronous construction of installation of the inspection well lid and paving and rolling of the asphalt pavement is realized.

Step 3, placing an internal mold

Firstly, processing and checking a wellhead to enable the elevation of the wellhead to be level with the elevation of the asphalt bottom surface, and installing a concrete prefabricated adjusting ring if necessary.

And placing the inspection well internal mold device into a shaft, dropping the movable lifting handle and marking the position of the well cover.

Step 4, paving asphalt

When the asphalt mixture is transported to a construction site, the asphalt mixture should be paved in time, the paving temperature of the asphalt mixture should be in accordance with the design and specification requirements, and the paving temperature should be strictly controlled in the construction process and the asphalt mixture should be executed according to the specifications of JTG F40-2004 tables 5.2.2-2 and 5.2.2-3 of Highway asphalt pavement construction technical specification.

The asphalt mixture adopts mechanical paving, and the loose paving coefficient is determined by a trial paving and pressure testing method according to the actual mixture type, construction machinery, construction process and the like.

Paving speed is generally 2-6 m/min, paving is continuously and uniformly carried out, and paving temperature, thickness and flatness are strictly controlled.

Step 5, rolling

The compaction is carried out by strictly controlling the compaction temperature, the compaction speed and the compaction times, so as to ensure that the required compactness is achieved. The rolling procedure of the asphalt mixture is divided into: initial pressing, re-pressing and final pressing.

The purpose of the initial compaction is to flatten and stabilize the mix. The method is characterized in that a 10t double-wheel road roller is pressed twice, flatness is checked after initial pressing, road arch is trimmed at any time, and the road roller can be pressed after the temperature is slightly lower when pushing occurs during rolling.

The purpose of the re-compaction is to compact, stabilize and shape the mixture, the re-compaction must be tightly linked with the initial compaction, and the re-compaction is generally carried out for 4-6 times by adopting a heavy road roller with the weight more than 12t until the mixture is stable and has no obvious track.

The purpose of the final press is to eliminate the footprint and finally form a flat compacted surface. And rolling for 2-4 times by adopting a 10T road roller.

The rolling temperature is strictly controlled in the rolling process, and the rolling temperature of each stage meets the design and specification requirements. When rolling, rolling from outside to inside, the adjacent rolling belts should be overlapped by 1/3-1/2 wheel width, and finally the center part is rolled, and the whole width is pressed into one pass

When rolling, the driving wheel should be faced to the paver, the rolling route and the rolling direction are not changed suddenly, so that the mixture is pushed, and the rolling speed should meet the standard requirements.

Step 6, providing an internal mold

Finding out an inspection well according to the marking position, cleaning asphalt materials on the internal mold device, lifting the internal mold device to the height of the asphalt surface layer, and leveling and cleaning.

Step 7, closing up the inspection well

After asphalt is paved, asphalt concrete on the well cover is uniformly shoveled to the periphery. A labor worker places a well lifting tool on the side of an inspection well, aligns the center of the well lifting tool to the center of the well cover, hooks the well cover by three iron hooks to form 120 degrees between a three-iron chain and the well cover, and then lifts the well cover by a hydraulic jack to keep the bottom of the well cover consistent with the paved asphalt pavement.

Self-control special packing shovel, inspection shaft lift in-process, after lifting the well lid, pack the pitch material to well lid below with packing shovel, because of packing shovel itself is small, the shovel head is comparatively thick, can pack pitch material under the well lid, evenly exert oneself, pack closely knit, then tamp, scrape the pitch material around the inspection shaft with the scraper blade, clear up the unnecessary surplus material in the well lid at last.

The shovel is replaced by the shovel for filling, asphalt materials under the well cover can be effectively filled uniformly and compactly, the filling speed can be reduced by 2min (the shovel is generally used for filling for 5-7min; the shovel is used for filling for 3-4 min), and the flatness of the road surface is detected by a 3m ruler after rolling to be less than 1.2mm.

And 8, finally rolling and forming.

The well cover is pressed into the road surface by using the vibratory roller, so that the well cover is integrated with the road surface and is consistent with the road surface in level. The arterial road must be compacted using a large vibratory roller. The secondary trunk may be compacted using a flat-bed vibratory machine or a small vibratory roller. Cleaning is carried out before traffic is opened, the cover plate is opened, and residual asphalt plugged in the opening, the hinge and the air holes is cleaned up, so that the normal use of the well lid in the future is ensured. After the construction is finished, the asphalt can be cooled to normal temperature to open traffic without maintenance.

According to the adjustable well lifter, the labor is saved through the supporting mechanism 1, the supporting mechanism 1 and the jack 101, the support 102 and the connecting plate 103, the overall construction efficiency is improved, the labor is saved through the fact that the well cover is lifted through the jack 101, manual pushing and pulling force is not needed in the whole process, and therefore the labor resource is saved.

The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. An adjustable well lifting device is characterized in that: comprises a supporting mechanism (1) and a tensioning mechanism (2);

the supporting mechanism (1) comprises a jack (101), a bracket (102) and a connecting plate (103); the telescopic end of the jack (101) is fixedly connected with the connecting plate (103), the top of the connecting plate (103) is fixedly connected with the bracket (102), a butt joint hole (3) is formed in the outer wall of the bracket (102), and the tensioning mechanism (2) is movably connected in the inner wall of the butt joint hole (3);

the tensioning mechanism (2) comprises an iron chain (201), a connecting ring (202) and an iron hook (203), wherein the iron chain (201) is movably connected in the inner wall of the butt joint hole (3), the iron chain (201) is connected with the connecting ring (202), and the iron hook (203) is connected with the connecting ring (202).

2. The adjustable well lifting device of claim 1, wherein: the bottom of the jack (101) is fixedly connected with a supporting plate (4).

3. The adjustable well lifting device of claim 2, wherein: the bottom of the supporting plate (4) is fixedly connected with a foot rest (5).

4. An adjustable well-lifting device according to claim 3, wherein: the number of the brackets (102) is three, and the angles among the brackets (102) are arranged at equal angles of 120 degrees.

5. The adjustable well lifting device of claim 4, wherein: the iron chain (201) is in fit connection with the connecting ring (202).

6. The adjustable well lifting device of claim 5, wherein: the connecting ring (202) is in fit connection with the iron hook (203).

7. The adjustable well lifting device of claim 6, wherein: the butt joint hole (3) is in fit connection with the tensioning mechanism (2), and the butt joint hole (3) is in fit connection with the iron chain (201).