CN202273397U

CN202273397U - Lifting device for reversal hanging lifting frame

Info

Publication number: CN202273397U
Application number: CN2011203138227U
Authority: CN
Inventors: 谭占峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-26
Filing date: 2011-08-26
Publication date: 2012-06-13
Anticipated expiration: 2021-08-26

Abstract

The utility model relates to a lifting device for a reversal hanging lifting frame. According to the lifting device, an electric hoist is connected with a fixed hanging piece of a scaffold by a lifting hook; a suspension mechanism in the lifting device is arranged on a cross beam at the top end of the scaffold; the electric hoist is connected with the suspension mechanism by using a chain through a chain wheel assembly and a hanging connection piece; the hanging connection piece is connected with a hanging support fixed to a building wall body by a pin shaft; the suspension mechanism consists of a tensioning fixed piece, a sliding rod, a compressed spring, a hand pulling block, an upper hook and a lower hook which are arranged on the cross beam; a sliding hole which is matched with the sliding rod is formed in the tensioning fixed piece; the sliding rod passes through the compressed spring and the sliding hole; the bottom of the sliding rod is connected with the upper hook; and the lower hook of the hand pulling hoist is connected with the chain wheel assembly. According to the lifting device, the hand pulling hoist can adjust the distance between the lower hook and the suspension mechanism directly, is convenient to use, and is not rotated during adjustment, so that the winding of the chain caused by swing or rotation is prevented, the tensile force of the chain is kept, and the lifting device has high stability and safety.

Description

Reversely hung Yong crane lifting appliance

Technical field

The utility model relates to a kind of plant equipment that is used in building field, particularly a kind of reversely hung Yong crane lifting appliance.

Background technology

In the occasion of using attachment type raise scaffold, its lifting appliance uses the loop chain elevator usually, is commonly called as electric block; Electric block is installed on the support that is higher than working face, when lifting false work rises, needs elder generation to be fixed on the support body of scaffold architectural; The a dead lift electric block on the more high-rise structure fixing after; Again put on chain, the traction through electric block again is with moving on the whole scaffold.

Usually electric block weighs up to a hundred jin, and a dead lift is very painstaking.And because repeated disassembled and assembled, equipment loss is serious, has great potential safety hazard.

Like patent No. CN 201020158501.1 " integrated reversal of the natural order of things cucurbit "; A kind of reversely hung Yong electric block is disclosed; Through train, loop chain, hook etc. electric block is hung upside down in the bottom of scaffold, in lifting process, do not need the dismounting cucurbit, practiced thrift manpower and improved safety.

But still there is the problem of following several respects in this utility model:

1, mentioned screw rod or flexible strand all exists when adjusting height and possibly rotate in the linkage, can make whole Hoisting System produce the problem of rotation or swing, influences stabilization of equipment performance, even chain is twined, and the equipment that influences normally moves.

2, with the rising of construction floor, when the strong point need move up, the electric block realization jack that need reverse; Make the supporting part elongation of loop chain; Jack part equity shortens, and the hitch point on top can not move during jack, makes the loop chain of supporting part lax; Lose tensile force and sagging, electric block is blocked in action of gravity.As a same reason, when the strong point moves down, also can make the jack of electric block partly lose tensile force and relax, block electric block.

3, hang bearing and hang being connected of connector, adopt bolt or bearing pin direct-connected, this is very high to the status requirement of hanging bearing, must be very accurate.And during practice of construction, wall body structure is not all to be vertical elevation, and possible this position is difficult to because there not being the attached wall origin of force install hangs bearing.

Summary of the invention

The utility model technical problem to be solved is: to the inconvenience that reversal of the natural order of things cucurbit in the prior art exists, carried out corresponding improvement, reduced the dismounting operation when the reversely hung Yong lifting appliance uses, made its stability and safety better simultaneously.

The utility model addresses the above problem the technical scheme that is adopted: a kind of reversely hung Yong crane lifting appliance; Its electric block is connected through the fixedly suspension member of suspension hook and scaffold; Suspension gear in the lifting appliance is installed on the crossbeam on scaffold top, and the used for electric hoist chain is through chain wheel assembly and hang connector and be connected with suspension gear; The bearing of hanging on hanging connector and being fixed on building masonry wall is connected through bearing pin, and said suspension gear is by being installed in tensioning fixture and slide bar, stage clip, the Chain block on the crossbeam and rising to the bait, descend hook to form; The slide opening that cooperates slide bar is arranged in the tensioning fixture, and slide bar passes stage clip and this slide opening, and the bottom of slide bar is connected with rising to the bait, and the following hook of Chain block is connected with chain wheel assembly.

Said hanging has slotted hole on the bearing, bearing pin pass this slotted hole with the attached wall bearing with hang connector and be connected.

Compared with prior art, the advantage of the utility model is:

1, Chain block can directly be adjusted down the distance between hook and the suspension gear, and is easy to use, and adjustment the time do not produce rotation, avoided chain swinging or rotation and twines.

2, when the long-term pressurized generation of the crossbeam of bracing frame miniature deformation, stage clip and slide bar can also compensate this deformation quantity, avoid producing error because of whole lifting appliance moves down; While receives at scaffold and has buffering effect when impacting, and can protect crossbeam, prevents its distortion.

3, stage clip and Chain block can guarantee that the chain of electric block is to have tensile force all the time, when on hitch point, moving or moving down, prevent that chain from dropping because of lax, have solved the problem of being blocked by chain easily when electric block starts.

4, the slotted hole of hanging on the bearing is connected through bearing pin with hanging between the connector, can allow the attached wall bearing to have a small amount of error in vertical direction during installation.Reduced when constructing hanging the requirement of support position precision.

Description of drawings

Fig. 1, the utility model structure chart.

A among Fig. 2, Fig. 1 is to view.

B part enlarged drawing among Fig. 3, Fig. 1.

C part enlarged drawing among Fig. 4, Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the novel embodiment of this use is further described.

Said scaffold 17 is support bodys of sandwich construction, and the top is a crossbeam 16, one side scaffold lean on wall be welded with guide rail 18, have grid type cross bar and attached wall bearing 19 to cooperate in the guide rail 18.Every floor all is equipped with attached wall bearing 19, and quantity is only drawn among Fig. 1 one greater than 3, with the annexation of signal guide rail and attached wall bearing.The attached wall bearing allows to have the guide rail scaffold and rises and descend at a slow speed, and when guide rail descended fast, the attached wall bearing can pin voluntarily, can play a supporting role to scaffold integral body.Scaffold, guide rail, attached wall bearing do not belong to the scope that the utility model is protected.

As shown in Figure 1, reversely hung Yong crane lifting appliance is by suspension gear, chain, chain wheel assembly, hang connector, hang bearing and electric block is formed.

Said suspension gear, by tensioning fixture 3, stage clip 1, the slide bar 2 on crossbeam 16 tops that are installed in scaffold 17 tops and have rise to the bait 4, the Chain block 5 of hook 6 is formed down.The tensioning fixture is fixed by bolts to the tip end piece of crossbeam, has in the middle of the tensioning fixture slide opening 3-1, slide bar 2 to pass stage clip 2 and slide opening 3-1, and O shape ring is arranged at the bottom of slide bar, and rising to the bait of Chain block 54 hooked this O shape ring.The following hook 6 of Chain block hooks chain wheel assembly 7.

In conjunction with Fig. 1, shown in Figure 2, electric block 14 is connected with fixedly suspension member on being installed in scaffold 17 through suspension hook 15, is positioned at the lower semisection of scaffold.The chain 13 of electric block passes hangs connector 11 and chain wheel assembly 6, forms the reversely hung Yong structure.

On the body of wall 8 of building, be fixed with and hang bearing 10, hang connector 11 and be connected with slotted hole 10-1 on the attached wall bearing through bearing pin 12 through bolt assembly 9.

Chain block 5 in the said suspension gear also can use another electric block to replace.Said chain 13 also can be replaced by wirerope.

As shown in Figure 2, when electric block 14 was just changeing, the first half 13-1 of chain 13 can prolong, and the latter half 13-2 of chain can shorten, and made to hang the relative chain wheel assemblies 7 of connector 11 and move downward with electric block 14; Otherwise, when electric block reverses, hang connector 11 relative chain wheel assemblies 7 and move upward with electric block 14.

When scaffold 17 need upwards promote, will be connected with the bearing 12 usefulness bolt assemblies 9 of hanging of hanging connector 11 earlier and be fixed on the body of wall 8, the weight of scaffold and reversely hung Yong crane lifting appliance passes to body of wall by hanging bearing.Starting electric block 14 is just changeing, and the latter half 13-2 of chain shortens, and the pulling scaffold moves upward.Because receive the restriction of scaffold upper rail 18 and attached wall bearing 19, scaffold can only move up by in the vertical direction.Therefore, except that hanging connector and hanging bearing is fixed on the body of wall lifting of the whole body of wall relatively of other parts of scaffold and reversely hung Yong crane lifting appliance.

After arriving new floor, electric block 14 quits work, and the weight of scaffold and reversely hung Yong crane lifting appliance is supported with guide rail 18 by the attached wall bearing 19 of each floor again.Unclamp bolt assembly 9 this moment, lets and hang support and be in free state, the counter-rotating electric block; The first half 13-1 of chain shortens; The latter half 13-2 elongation rises to new floor with hanging connector 11, retightens the body of wall of hanging bearing 10 and a new floor with bolt assembly 9 again.

Above-mentioned steps hockets, the attached wall bearing with hang the weight that bearing replaces support scaffolding and crane lifting appliance.Under the control of electric block, hang connector and scaffold and alternately rise, realize rising overally of scaffold 17.

The workload of dismounting is little in uphill process, needn't carry heavy lifting appliance.During adjusting, chain does not rotate and twines, and suspension gear guaranteed that chain 1 is in tensioning state all the time in uphill process, has solved the problem of having been blocked by chain easily when electric block starts, and stability and safety are better.

Claims

1. reversely hung Yong crane lifting appliance; Its electric block (14) is connected through the fixedly suspension member (16) of suspension hook (15) and scaffold (17); Suspension gear in the lifting appliance is installed on the crossbeam (16) on scaffold top, and used for electric hoist chain (13) is through chain wheel assembly (7) and hang connector (11) and be connected with suspension gear; The bearing (10) of hanging on hanging connector and being fixed on building masonry wall (8) is connected through bearing pin (12); It is characterized in that, said suspension gear by be installed in tensioning fixture (3) and slide bar (2) on the crossbeam, stage clip (1), Chain block (5) and rise to the bait (4), hook (6) is formed down; The slide opening (3-1) that cooperates slide bar is arranged in the tensioning fixture, and slide bar passes stage clip and this slide opening (3-1), and the bottom of slide bar is connected with rising to the bait, and the following hook (6) of Chain block is connected with chain wheel assembly (7).

2. reversely hung Yong crane lifting appliance according to claim 1 is characterized in that, said hanging has slotted hole (10-1) on the bearing (10), and bearing pin (12) passes this slotted hole and will hang bearing (10) and hang connector (11) and be connected.