Concreting is with surperficial absolute altitude control device
Technical field
The utility model relates to a kind of absolute altitude control device, the absolute altitude control device of surface levelling when relating in particular to a kind of concreting.
Background technology
In the work progress of industry and civilian construction industry, cast-in-situ concrete (steel concrete) terrace must be to required concrete leveling absolute altitude of building before building.For many years, the construction industry is when carrying out the levelling absolute altitude, mostly adopt the building leveling layer is set, in required pour of building, bury reinforcement bar in advance underground exactly, top, upper end at reinforcement bar smears red paint, determine the concrete height of building with the position height that red paint mark is established, build initial set after, the reinforcing bar and the red paint that will expose outside pour polish again.But, adopt the job practices of this levelling absolute altitude, have following problem: at first, because being provided with of leveling layer of building need be buried a large amount of reinforcement bars in advance underground, and a large amount of reinforcement bars be provided with that to produce error inevitable, the concrete surface planeness can not get effective control all the time thus; Secondly, the use of a large amount of reinforcement bars has not only increased construction cost, and just is deposited in after building in the terrace, long-time after because the problem such as get rusty of reinforcement bar also can impact building itself.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of concreting with surperficial absolute altitude control device on the basis of original levelling absolute altitude, the use of this device not only makes the terrace surface planeness obtain better control, and has improved work efficiency, has accelerated construction speed, reduced construction costs.
For solving the problems of the technologies described above, a kind of concreting of the present utility model is with surperficial absolute altitude control device, comprise base, carriage, upper bracket and lower carriage, one end of lower carriage is fixed on the base, one end of upper bracket is fixed on the bottom of carriage, this concreting also comprises trimming bolt with surperficial absolute altitude control device, simultaneously have the upper bracket adjustment hole in the bottom of upper bracket, have bolt hole on the weak lower carriage, trimming bolt is screwed in the bolt hole after passing the upper bracket adjustment hole, and upper bracket is connected with lower carriage.
In order to guarantee the precision of levelling absolute altitude, rest track steel pipe on carriage.
Because the utility model adopts upper bracket and lower carriage is set respectively, offers the upper bracket adjustment hole on upper bracket, offers bolt hole on lower carriage, with trimming bolt upper bracket is carried out adjustable the connection with lower carriage.After level gauge is surveyed the bidding height,, just can be adjusted to the absolute altitude of orbit Design like this as long as this height of devices is finely tuned by trimming bolt, thus control terrace concreting and levelling absolute altitude.Thus, adopt a kind of concreting of the present utility model not only can make in large area structural concrete magma in level ground with smashing with the troweling one-shot forming with surperficial absolute altitude control device, build with levelling after the concrete surface planeness reach designing requirement, and need not to be provided with the building leveling layer.The utility model has improved work efficiency significantly, has accelerated construction speed, has also reduced construction costs.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is a kind of concreting of the present utility model with surperficial absolute altitude control device schematic diagram.
The specific embodiment
Fig. 1 is a kind of concreting of the utility model with surperficial absolute altitude control device schematic diagram.As can be seen from Figure 1, a kind of concreting selects for use channel-section steel as carriage 1 with surperficial absolute altitude control device, and upper bracket 2 and lower carriage 3 are selected the right angle angle steel respectively for use, simultaneously on upper bracket 2, offer waist shape screw, offer bolt hole 6 on the lower carriage 3 as upper bracket adjustment hole 4.One end of lower carriage 3 is weldingly fixed on the base 7, and an end of upper bracket 2 is weldingly fixed on the bottom of channel-section steel carriage 1, and trimming bolt 5 is screwed in the bolt hole 6 of lower carriage 3 after passing waist shape screw on the upper bracket 2, and upper bracket 2 is connected with lower carriage 3.Rest has track steel pipe 8 to be used for the levelling absolute altitude on the channel-section steel carriage 1.