Cast-in-place pile concrete absolute altitude detector
Technical field
The utility model relates to a kind of cast-in-place pile concrete absolute altitude detector.
Background technology
Dash in the construction of (brill) hole pouring pile existing, the detection of concrete surface absolute altitude was usually by weight or bamboo pole before concrete spouting finished, when engineering design has two-layer above basement, adopt the evaluated error of the concrete surface absolute altitude that weight or bamboo pole measure to increase.
The utility model content
The purpose of this utility model is to provide a kind of simplicity of design, and is easy to operate, the cast-in-place pile concrete absolute altitude detector that measure error is little.
The technical solution of the utility model is as follows: it comprises lifting rope, hanger, it is characterized in that: it also comprises flaps and weighted rod, described weighted rod is the column weight, the upper fixed of weighted rod has the flaps with the weighted rod concentric, the circle centre position of flaps upper surface is provided with hanger, and hanger is provided with lifting rope.
Than prior art, the utlity model has following advantage: 1, simple in structure, only just can form by several parts, repair and replacement are convenient; 2, easy for operation, mode of operation is similar to existing multiple technologies; 3, compared with prior art, the error when the utility model can reduce to measure, the error that makes measurement is in negligible reasonable range.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Label declaration: 1 lifting rope, 2 hangers, 3 flaps, 4 weighted rod.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments the utility model content is elaborated:
As shown in Figure 1: the utility model comprises lifting rope 1, hanger 2, flaps 3 and weighted rod 4, and weighted rod 4 is the column weight of cylindrical structural, also can be that cross section is the weight of the column of other shape, the surface of weighted rod with smooth for well.The upper fixed of weighted rod has the flaps with the weighted rod concentric, and the place, axle center of flaps upper surface is provided with hanger, and hanger is provided with lifting rope.The diameter of flaps is greater than the diameter of weighted rod.But lifting rope is provided with the label of measured length.
During use, weight by weighted rod itself moves down the utility model detector in castinplace pile, when weighted rod runs into concrete the time, because the weight of weighted rod itself is bigger, so weighted rod can be moved down in concrete, the top of weighted rod is provided with the flaps 3 with the circle of weighted rod concentric, the diameter of flaps 3 is greater than the diameter of weighted rod, when flaps contacts with concrete, because the diameter of flaps itself is bigger, the speed that the utility model detector is sunk slows down, and after a bit of distance of displacement, stops to sink; When confirming that the utility model detector stops to sink, gently that lifting rope is stretching, and on the record lifting rope with the ground scale of mean place mutually, can converse the absolute altitude of castinplace pile inner concrete.If do not have scale on the lifting rope,, can converse the absolute altitude of castinplace pile inner concrete equally by measuring lifting rope and ear length in the castinplace pile.
Connected mode between the accessories such as the lifting rope on the utility model detector, hanger, flaps and weighted rod can be arranged to detachable form, so that clean, stores.