CN217808278U

CN217808278U - Novel lifting device

Info

Publication number: CN217808278U
Application number: CN202221002038.9U
Authority: CN
Inventors: 刘伟; 刘继凯; 陈添贵; 孙燊; 郝宁; 魏子森
Original assignee: China Construction Engineering Macau Co Ltd
Current assignee: China Construction Engineering Macau Co Ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-15
Anticipated expiration: 2032-04-26

Abstract

The utility model is suitable for a deep basement construction engineering field provides a novel overhead hoist and includes the connecting portion that is located the upper half, the lifting hook that is located the lower half and the steel branch that runs through from top to bottom the lifting hook, connecting portion are used for with hoist chain fixed link, the bottom of lifting hook has the draw-in groove that is used for the card to go into in the I-steel, connecting portion and lifting hook top are equipped with the vertical mounting hole that aligns respectively, the draw-in groove lateral wall is equipped with the hasp hole, the steel branch is worn to wear to locate in the mounting hole with the activity from top to bottom, the bottom of steel branch can insert in the hasp hole; and adjusting the steel support, wherein the steel support can be inserted downwards or pulled upwards out of the lock catch hole. The utility model discloses an unique overhead hoist can accomplish the construction of engineering stake more simply and easily fast, but the repeated application in other handling engineering, economic environmental protection after the overhead hoist dismantles.

Description

Novel lifting device

Technical Field

The utility model belongs to deep ground storehouse construction engineering field especially relates to a novel overhead hoist.

Background

The conventional pile foundation engineering needs to plug in a temporary I-shaped part to the ground to adjust the placement position of the permanent I-shaped part, and then grouting the temporary I-shaped part to the ground. However, the engineered pile only needs to reach the design cut level in the pile cap. Therefore, during excavation, these temporary structures will need to be disassembled and discarded, wasting money and also creating a large amount of construction waste.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel overhead hoist, it can be solved among the prior art during the excavation, need dismantle and abandon the engineering stake, resources are wasted to and make a large amount of construction waste's problem.

The utility model discloses a realize like this, a novel overhead hoist, including the connecting portion that is located the upper half, the lifting hook that is located the lower half and the steel branch that runs through from last to down the lifting hook, connecting portion are used for with hoist chain fixed link, the bottom of lifting hook has the draw-in groove that is used for the card to go into in the I-steel, connecting portion and lifting hook top are equipped with the mounting hole that vertically aligns respectively, the draw-in groove lateral wall aligns the position of mounting hole is equipped with the hasp hole, the steel branch is worn to wear to locate in the mounting hole with can moving about from top to bottom, the bottom of steel branch can insert in the hasp hole; and adjusting the steel support, wherein the steel support can be inserted downwards or pulled upwards out of the lock catch hole.

Furthermore, the side shape of the lifting hook is C-shaped.

Furthermore, the connecting part is a channel steel, and the bottom end of the connecting part is welded with the top end of the lifting hook.

Furthermore, lifting lugs connected with the lifting chains are arranged on two sides of the top end of the connecting part; the inner side surface of the connecting part is provided with a plurality of reinforcing plates which are distributed at intervals in the vertical direction, and the reinforcing plates are also provided with mounting holes.

Compared with the prior art, the utility model, beneficial effect lies in:

the utility model discloses an unique overhead hoist can accomplish the construction of engineering stake more simply and easily fast, but the repeated application in other handling engineering, economic environmental protection after the overhead hoist dismantles. Adopt the utility model discloses an overhead hoist handling, reducible building material use amount and transit time reduce handling and welding processes by a wide margin, and construction operating efficiency can increase substantially. In view of the present continuous rising trend of building material price, the utility model discloses economic benefits is especially outstanding, can provide the technical reference for similar engineering from now on, is applicable to all engineering projects, has application popularization prospect.

Drawings

Fig. 1 is a schematic perspective view of a novel lifting device provided by an embodiment of the present invention;

fig. 2 is a flow chart of the construction of deep-layer ground warehouse pile foundations by adopting the novel hoisting device provided by the embodiment of the utility model;

fig. 3 is a schematic view of the connection between the novel hoisting device and the i-steel according to the embodiment of the invention;

fig. 4 is a schematic view of the novel hoisting device hoisting i-steel into the foundation of the pile hole bearing layer;

fig. 5 is a schematic diagram of the novel hoisting device of the embodiment of the present invention after being separated from the i-steel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; the two components can be directly connected with each other or indirectly connected with each other through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, a novel lifting device provided by the present embodiment is shown, which includes a connecting portion 1 located at an upper half portion, a lifting hook 2 located at a lower half portion, and a steel support 3 penetrating through the lifting hook from top to bottom.

The connecting part 1 is used for being fixedly connected with a hoisting sling 4, the bottom end of the lifting hook 2 is provided with a clamping groove 21 used for being clamped into an I-shaped steel, the tops of the connecting part 1 and the lifting hook 2 are respectively provided with a vertically aligned mounting hole 5, the position of the outer side wall of the clamping groove 21 aligned with the mounting hole 5 is provided with a lock catch hole, the steel support 3 penetrates through the mounting hole 5 in a vertically movable mode, and the bottom end of the steel support 3 can be inserted into the lock catch hole; the steel support 3 is adjusted manually, and the steel support 3 can be inserted downwards or pulled upwards out of the lock catch hole.

Specifically, the side surface of the hook 2 is C-shaped. The connecting part 1 is a channel steel with the length of 18m, and lifting lugs 11 for connecting with the lifting chains 4 are arranged on two sides of the top end of the connecting part 1. The inner side surface of the connecting part 1 is provided with a plurality of reinforcing plates 12 which are distributed at intervals in the vertical direction, and the reinforcing plates 12 are also provided with mounting holes 5. The bottom end of the connecting part 1 is welded with the top end of the lifting hook 2.

Referring to fig. 2, the present embodiment further provides a method for implementing deep foundation pile foundation construction by using the novel hoisting device 100, including the following steps:

s1, marking measurement baselines on two sides of a temporary sleeve as a reference of the height of the joist steel 200;

s2, material preparation: cutting and connecting the I-beam 200, cutting the square hole 201 of the I-beam 200, and installing an I-beam 201 limiter;

s3, connecting the novel lifting device 100 with the I-shaped steel 201, as shown in FIG. 3;

s4, lifting the I-shaped steel 200 into the bottom of the foundation stone of the pile hole bearing layer, as shown in FIG. 4;

s5, adjusting the novel lifting device 100, pulling up the steel support 3 after the position and the section direction of the I-steel 200 meet the requirements, and slightly moving downwards and then slightly moving backwards by using a crane to separate the novel lifting device 100 from the I-steel 200; then slowly lifting the suspension arm to lift the novel lifting device 100 out of the temporary casing, as shown in fig. 5;

s6, placing the grouting throat pipe into a temporary steel sleeve for grouting;

s7, after grouting is finished, all temporary steel sleeves are pulled out, and the elevation of the top of the rechecked I-shaped steel 200 is measured by a measuring tape and maintained unchanged;

and S8, backfilling pile holes.

Preferably, the step S2 further includes the steps of:

and (3) arranging iron patterns on two sides of the I-beam 200 as limiters to prevent the I-beam 200 from shifting in a pile hole.

Preferably, the step S4 further includes the steps of:

and (3) hoisting the I-steel 200 to the pile-forming hole position by using a large crane, butt-welding and connecting the I-steel 200 until the whole I-steel 200 meets the preset length, and stably placing lifting lugs at two sides of the top of the I-steel 200 at the top of the temporary steel sleeve.

Preferably, the step S4 further includes the steps of:

when the stacking is carried out, the lifting lugs 11 on the two sides of the novel lifting device 100 are firstly buckled by the large lifting buckles, and then the lifting hook 2 is buckled on the square hole 201 at the top of the I-shaped steel 200; the steel support 3 is put down to be fixed in the clamping groove 21 which can be clamped and embedded on the hook, so that the whole part is safely and firmly buckled, and the I-shaped steel 200 is prevented from sliding off; slightly hoisting the I-steel 200 to ensure that the stress of the 2 hoisting chains 4 is balanced, and cutting lifting lugs on two sides of the I-steel 200;

slowly putting down the suspension arm, and allowing the novel lifting device 100 and the I-steel 200 to move downwards together to enter a temporary steel sleeve until the bottom of the foundation stone of the bearing stratum is reached;

according to a pre-marked measurement baseline, the position and the direction of the novel hoisting device 100 are adjusted to enable the I-steel 200 to be located at the center of a pile hole, and the section direction of the I-steel is consistent with that of a design drawing; measuring the top elevation of the I-shaped steel 200 by using a measuring ruler to ensure that the I-shaped steel 200 is placed to the preset depth position of the drawing; visually checking a scale on the lifting appliance, and rechecking the top elevation of the I-steel 200; after all the operations are confirmed to be correct, the subsequent unhooking operation can be carried out;

unhooking: the steel support 3 is pulled up, and the crane moves downwards slightly and then moves backwards slightly, so that the novel lifting device 100 is separated from the I-shaped steel 200; and then slowly lifting the suspension arm to lift the novel lifting device 100 out of the temporary steel sleeve in the pile hole.

Preferably, the step S6 further includes the steps of:

accurately calculating the grouting amount before grouting, measuring the top elevation of the I-steel 200 by using a measuring ruler, rechecking whether the requirement of engineering drawing is met,

placing the grouting throat pipe into a temporary steel sleeve for grouting, adopting a special dense pipe method and grouting at the grouting pressure of 2-4 Bar,

in the grouting process, the slurry surface is maintained to be at least more than 6 meters at the end part of the sleeve, the slurry is continuously poured until the slurry continuously overflows from the top of the pile hole sleeve, and gaps or honeycombs caused by air remaining in the pile hole are avoided.

Preferably, the step S8 further includes the steps of:

and (3) backfilling pile holes after 24-36 hours of grouting, wherein the backfilling materials adopt dry silt and stone powder on site, and cement powder is added near the ground surface.

This embodiment adopts unique novel overhead hoist 100, can accomplish the construction of engineering stake more simply and easily fast, but novel overhead hoist 100 dismantles back repeatedly applied to other handling projects, economic environmental protection. By adopting the construction method of the embodiment to construct the deep-layer ground warehouse pile foundation, the use amount of building materials and the transportation time can be reduced, the hoisting and welding processes are greatly reduced, and the construction operation efficiency is greatly improved. In view of the current continuous rising trend of the price of the building materials, the construction method of the embodiment has outstanding economic benefits, can provide technical reference for similar projects in the future, is suitable for all project projects, and has wide application and popularization prospects.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A novel lifting device is characterized by comprising a connecting part positioned on the upper half part, a lifting hook positioned on the lower half part and a steel support penetrating through the lifting hook from top to bottom, wherein the connecting part is used for being fixedly connected with a lifting sling chain, the bottom end of the lifting hook is provided with a clamping groove used for being clamped into I-shaped steel, the tops of the connecting part and the lifting hook are respectively provided with a vertically aligned mounting hole, the position of the outer side wall of the clamping groove aligned with the mounting hole is provided with a lock catch hole, the steel support penetrates through the mounting hole in a vertically movable mode, and the bottom end of the steel support can be inserted into the lock catch hole; and adjusting the steel support, wherein the steel support can be inserted downwards or pulled upwards out of the lock catch hole.

2. The novel overhead hoist of claim 1, characterized in that the side shape of the lifting hook is C-shaped.

3. The novel hoisting device as claimed in claim 1, wherein the connecting part is a channel steel, and the bottom end of the connecting part is welded with the top end of the lifting hook.

4. A novel lifting device as claimed in claim 3, wherein the connecting part is provided with lifting lugs at two sides of the top end for connecting with a lifting chain; the inner side surface of the connecting part is provided with a plurality of reinforcing plates which are distributed at intervals in the vertical direction, and the reinforcing plates are also provided with the mounting holes.