Utility model content
One of the purpose of this utility model is to provide a kind of tower crane supporting leg anchoring pre-buried structure, to improve its pre-buried precision
With pre-buried efficiency.
For this purpose, the utility model uses following technical scheme:
A kind of tower crane supporting leg anchoring pre-buried structure, including multiple supporting legs, further include multiple adjusting brackets, the adjusting bracket
Include:
Adjust supporting plate;
Screw rod is connected to the top for adjusting supporting plate, and the screw rod is vertical with the adjusting supporting plate;And
Upper adjusting nut and lower adjusting nut, are bolted in the screw rod;
The supporting leg includes supporting plate, and the screw rod is arranged in the supporting plate, and the supporting plate can be along the axis of the screw rod
Line adjusts position, and the upper adjusting nut and the lower adjusting nut are divided into the two sides up and down of the supporting plate, the lower adjusting
Nut is connected to the bottom surface of the supporting plate.
Preferably, offering adjustment hole on the supporting plate, the screw rod is arranged through the adjustment hole.
Preferably, between the upper adjusting nut and the supporting plate and the lower adjusting nut and the supporting plate it
Between be provided with gasket.
Preferably, the adjusting bracket further includes that one end is connected to four support rods for adjusting supporting plate upper surface,
Four support rods and the adjusting supporting plate form tetragonous wimble structure, and the screw rod is connected to the another of four support rods
End.
Preferably, the adjusting bracket further includes that one end is connected to three support rods for adjusting supporting plate upper surface,
Three support rods and the adjusting supporting plate form trigone wimble structure, and the screw rod is connected to the another of three support rods
End.
Preferably, the tower crane supporting leg anchoring pre-buried structure further includes Steel bar rack, the support rod and the reinforcing bar
Bracket welding.
Preferably, the tower crane supporting leg anchoring pre-buried structure includes four supporting legs, and four supporting legs are located at
On four angles of same square, an adjusting bracket, and four adjusting brackets are respectively connected on each supporting leg
Centre distance away from the square is equal.
Preferably, the supporting leg further includes column, the upper surface of the supporting plate is fixed in one end of the column, another
One end is provided with fixed frame.
Another of the utility model is designed to provide a kind of tower crane, to improve its safety.
For this purpose, the utility model uses following technical scheme:
A kind of tower crane anchors pre-buried structure including above-mentioned tower crane supporting leg.
The utility model has the beneficial effects that tower crane supporting leg anchoring pre-buried structure described in the utility model can be adjusted quickly
Its verticality is saved, work efficiency is high, and accuracy is high.By survey crew to the pre-buried precision of tower crane supporting leg anchoring pre-buried structure
It carries out an acceptance inspection, the pre-buried operation qualification rate of tower crane supporting leg anchoring pre-buried structure reaches 100%, and supporting leg maximum perpendicular degree deviation is
0.76mm。
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It can manage
Solution, specific embodiment described herein are used only for explaining the utility model, rather than the restriction to the utility model.Separately
It is outer it should also be noted that, illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
A kind of tower crane supporting leg anchoring pre-buried structure is present embodiments provided, mainly but is not limited to applied to the pre-buried of tower crane
In structure, to improve the pre-buried precision and pre-buried efficiency of tower crane supporting leg anchoring pre-buried structure.
As shown in Figure 1-3, tower crane supporting leg provided in this embodiment anchors pre-buried structure, including multiple supporting legs 1, multiple adjustings
Bracket 2, adjusting bracket 2 include adjusting supporting plate 21, screw rod 22, upper adjusting nut 23 and lower adjusting nut 24.
Screw rod 22 is connected to the top for adjusting supporting plate 21, and screw rod 22 is vertical with supporting plate 21 is adjusted;Upper 23 He of adjusting nut
Lower adjusting nut 24 is bolted in screw rod 22.Supporting leg 1 includes supporting plate 11, and supporting plate 11 can be along the axis trimming position of screw rod 22
It sets, upper adjusting nut 23 and lower adjusting nut 24 are divided into the two sides up and down of supporting plate 11, and lower adjusting nut 24 is connected to supporting plate 11
Bottom surface.
After multiple supporting legs 1 are placed on ground, since the height of ground is different, the verticality of tower crane, this reality will affect
It applies adjusting supporting plate 21 in example to contact with ground, screw rod 22 is arranged in adjustment hole 111.By being adjusted up lower adjusting nut 24, adjust
The elevated height for saving supporting leg 1 can reduce the height of supporting leg 1, to keep multiple supporting legs 1 remote by lowering upper adjusting nut 23
One end of liftoff base is located on the same horizontal plane, to guarantee the verticality of entire tower crane.
Since screw rod 22 is tight compared with the cooperation of supporting plate 11, in setting, adjusting nut 23, which is avoided the occurrence of, adjusts downwards lower adjust
The phenomenon that 24 supporting leg 1 of nut can not move down automatically.After the height adjustment of supporting leg 1, adjusting nut 23 is under in locking
Adjusting nut 24, limitation supporting leg 1 are moved relative to adjusting bracket 2, avoid that the height of supporting leg 1 changes or supporting leg 1 inclines
Tiltedly, and then ensure the verticality of entire tower crane.Tower crane supporting leg anchoring pre-buried structure can quickly adjust its verticality, work
It is high-efficient, and accuracy is high.It carries out an acceptance inspection by survey crew to the tower crane supporting leg anchoring pre-buried precision of pre-buried structure, tower crane supporting leg
The pre-buried operation qualification rate of anchoring pre-buried structure reaches 100%, and 1 maximum perpendicular degree deviation of supporting leg is to be able to maintain in 1mm
Within, the verticality precision compared with tower crane supporting leg anchoring pre-buried structure in prior art the present embodiment greatly improves.
It is provided with gasket between upper adjusting nut 23 and supporting plate 11 and between lower adjusting nut 24 and supporting plate 11, from
And up-regulation section nut 23, lower adjusting nut 24 and supporting plate 11 can be made to be more uniformly stressed, improve the stability of adjusting bracket 2.
As shown in Fig. 2, adjusting bracket 2 further include one end be connected to adjust 21 upper surface of supporting plate four support rods 25, four
A support rod 25 and adjusting supporting plate 21 form tetragonous wimble structure, and screw rod 22 is connected to the other end of four support rods 25.
Adjusting bracket 2 also may include three support rods 25, and one end of each support rod 25, which is connected to, to be adjusted on supporting plate 21
Three support rods 25 on surface, three support rods 25 and adjusting supporting plate 21 form trigone wimble structure, and screw rod 22 is connected to three branch
The other end of strut 25.Screw rod 22 is connected into supporting plate 11 by three or four support rods 25, the connection for improving screw rod 22 is strong
Degree and stability, can be effectively ensured the verticality between supporting plate 11 and screw rod 22.The base as tower crane model 1250KNm or less
Plinth anchors supporting leg and fixed frame quality is smaller, can choose using the adjusting bracket 2 being arranged there are three support rod 25, is adjusted with reducing
Save the cost of bracket 2;As tower crane model 1250KNm or more, foundation anchor supporting leg and fixed frame quality are larger, Ke Yixuan
It selects using the adjusting bracket 2 being arranged there are four support rod 25, to guarantee the intensity of adjusting bracket 2.
It further includes Steel bar rack that tower crane supporting leg, which anchors pre-buried structure, and Steel bar rack is set on ground comprising more steel
Muscle is adjusted after supporting plate 21 passes through two adjacent reinforcing bars and is placed on ground, and support rod 25 is welded to connect in Steel bar rack, effectively
Prevent tower crane supporting leg when concreting from anchoring pre-buried structure run-off the straight.
As shown in Figure 1, tower crane supporting leg anchoring pre-buried structure include four supporting legs 1, and four supporting legs 1 be located at it is same just
On four rectangular angles, be respectively connected with an adjusting bracket 2 on each supporting leg 1, and center of four adjusting brackets 2 away from square away from
From being equal, it thereby may be ensured that tower crane supporting leg anchors pre-buried structure uniform force, conducive to the verticality for keeping tower crane.
As shown in figure 3, the supporting plate 11 of supporting leg 1 offers adjustment hole 111, screw rod 22 is arranged through adjustment hole 111.Supporting plate 11
On offer multiple adjustment holes 111, the cross section of the supporting plate 11 in the present embodiment is square, the position at four angles of supporting plate 11
Adjustment hole 111 is offered, and the axis direction of knothole 111 is consistent with the axis direction of column 12, is needed due to adjusting supporting plate 21
It to pass through two adjacent reinforcing bars to be placed on ground, multiple adjustment holes 111 are set, it can be according to the actual situation by adjusting bracket
2 are arranged in adjustment hole 111 appropriate, but need to guarantee that four adjusting brackets 2 are equal away from the centre distance of square.
Supporting leg 1 further includes column 12, and the upper surface of supporting plate 11 is fixed in one end of column 12, and the other end is provided with fixation
The cross section of frame 3, fixed frame 3 is square.The cross section of fixed frame 3 is square, and four supporting legs 1 are connected to fixed frame 3
Four angles on i.e. can guarantee four supporting legs 1 be located on four angles of same square, fixed frame 3 and column 12 in the present embodiment
It is connected by pin shaft.
The assembling of tower crane supporting leg anchoring pre-buried structure in the present embodiment and pre-buried process are as follows:
1, according to tower crane horizontal layout situation and engineering practice and feature in Design of Construction Organization, by Project Technical people
Member determines tower crane installation site.
2, according to the practical earth bearing strength in scene and foundation for tower crane foundation bearing pressure condition, determination is using pile foundation or natively
Base.
3, tower crane blinding layer has been poured first, and the thickness of bed course must assure that greater than 100mm, blinding concrete solidification
Intensity reaches the mountable supporting leg 1 in the rear C35.Before supporting leg 1 is installed, tower crane central cross line is released by figure on bed course, then
Steel bar rack is set.
4, successively adjusting bracket 2, supporting leg 1, fixed frame 3 are combined into one from the bottom to top.Tower crane supporting leg is anchored pre-buried
Structure is placed on ground, is measured to fixed frame 3, guarantees the verticality of its quadrangle, and guarantees that perpendicularity deviation is not more than
1mm.After regulating, Steel bar rack and adjusting bracket 2 are welded with electric welding.
5, foundation for tower crane concrete is poured, supporting leg 1 is measured again before pouring, it is ensured that verticality is not greater than 1mm
It can carry out pouring operation.
When concreting, the centre for first having to anchor pre-buried structure from tower crane supporting leg is poured, when pouring appropriate height, it is necessary to
It measures its verticality and is not greater than 1mm, can continue to pour.As long as concrete is poured at 1 upper surface 150mm of supporting leg,
Guarantee installation requirement.Foundation for tower crane is when pouring, it is necessary to assure otherwise its levelness will directly affect vertical after tower crane is installed
It spends and basis is caused to scrap.
The present embodiment additionally provides a kind of tower crane, pre-buried structure is anchored including above-mentioned tower crane supporting leg, in the present embodiment
Tower crane stable structure.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.