CN205784979U - A kind of bridge displacement measurement apparatus - Google Patents

Abstract

The utility model relates to equipment for bridge detection, in particular to a bridge displacement measuring device. The bridge displacement measuring device comprises a beam mounting seat installed on the side wall of the bridge girder body and a bridge pier mounting seat installed on the top of the pier pier, and a grid-shaped scale line is horizontally arranged on one side of the beam body mounting seat. Transparent indicator board, one side of the transparent indicator board is connected with the beam body mounting seat through two connecting rods, a pin shaft is vertically fixed on the lower surface side of the transparent indicator board, and one end of a horizontally arranged telescopic rod body is connected to the pin The shaft is rotatably connected, and a ring is arranged at the other end of the telescopic rod body. The moving distance of the top of the telescopic rod in the horizontal direction can be displayed on the transparent indicator board, that is, the relative displacement in the horizontal direction; the change of the upper edge of the columnar rod on the scale line is the relative displacement in the vertical direction, which has a structure It is simple, not easily affected by the external environment, and can be observed for a long time.

Description

A bridge displacement measuring device

technical field

The utility model relates to equipment for bridge detection, in particular to a bridge displacement measuring device.

Background technique

During the use of the bridge, due to factors such as the bridge itself, the centrifugal force generated when the vehicle turns, the braking force when the vehicle starts or brakes, etc., the bridge will be displaced vertically or laterally, and the displacement of the bridge can cause the bridge deck Deformation occurs, which can lead to bridge collapse in severe cases. For the bridge displacement condition, it needs to be measured regularly. Existing bridge displacement measurement mainly adopts displacement meter, dial gauge and other photoelectric displacement measuring devices. The installation and debugging of these instruments and equipment is extremely complicated and easily damaged. Most of them need to be used in conjunction with other acquisition equipment, and are easily affected by power supply conditions and external environments. They are mostly used for short-term measurements and are not suitable for long-term observations.

Contents of the invention

In order to make up for the deficiencies of the prior art, the utility model provides a bridge displacement measuring device with simple structure, reasonable design, strong adaptability and long-term observation, which solves the problems existing in the prior art.

The utility model is achieved through the following technical solutions:

A bridge displacement measuring device, comprising a beam mounting seat installed on the side wall of a bridge girder and a pier mounting seat installed on the top of a bridge pier. One side of the transparent indicator plate is connected with the beam body mounting seat through two connecting rods, a pin shaft is vertically fixed on the lower surface side of the transparent indicator plate, and one end of a horizontally arranged telescopic rod body is connected to the The pin shaft is rotatably connected, and a ring is provided at the other end of the telescopic rod body. The top end of a vertical measuring rod passes through the ring and is connected with a limit top plate, and a scale is vertically arranged on the outer surface of the measuring rod. line, the lower end of the measuring rod is movably inserted into a sleeve, and the bottom end of the sleeve is fixed on the mounting seat of the pier.

One side of the upper end of the sleeve is provided with a reflective mirror whose mirror surface is arranged obliquely upward.

The beneficial effects of the utility model are: in the bridge displacement measuring device, the moving distance of the top of the telescopic rod body in the horizontal direction can be displayed on the transparent indicator board, and the moving distance is the relative displacement between the bridge and the bridge pier in the horizontal direction; the measuring rod The change of the upper edge on the scale line is the relative displacement between the bridge and the pier in the vertical direction. The bridge displacement measuring device can detect the displacement of the bridge in the horizontal direction and the vertical direction, and has a simple structure and is easy to use. It is directly installed on the bridge during measurement and does not require power supply equipment. The effect can be observed in the long term.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a structural schematic diagram of the beam mounting base and the transparent indicator plate in Fig. 1 .

In the figure, 1. Beam mounting seat, 2. Bridge pier mounting seat, 3. Grid scale line, 4. Transparent indicator plate, 5. Pin shaft, 6. Telescopic rod body, 7. Limiting top plate, 8. Measuring rod , 9, scale line, 10, sleeve, 11, mirror, 12, connecting rod, 13, collar.

detailed description

In order to clearly illustrate the technical features of this solution, the utility model will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

As shown in Figure 1-2, the bridge displacement measurement device includes a beam body mounting seat 1 installed on the side wall of the bridge girder body and a bridge pier mounting seat 2 installed on the top of the pier pier, on one side of the beam body mounting seat 1 A transparent indicator plate 4 with a grid-like scale line 3 is horizontally provided, and one side of the transparent indicator plate 4 is connected with the beam body mounting base 1 through two connecting rods 12, and the lower surface side of the transparent indicator plate 4 is vertically connected. A pin shaft 5 is fixedly arranged, and one end of a horizontally arranged telescopic rod body 6 is rotatably connected with the pin shaft 5, and a collar 13 is arranged at the other end of the telescopic rod body 6, and the top end of a vertically arranged measuring rod 8 passes through the The back of the collar 13 is connected with a limit top plate 7, and the outer surface of the measuring rod 8 is vertically provided with a scale mark 9, and the lower end of the measuring rod 8 is movably inserted in a sleeve 10, and the sleeve 10 The bottom end of the sleeve 10 is fixed on the pier mounting seat 2, and a reflector 11 with a mirror surface obliquely upward is arranged on the upper end side of the sleeve 10.

During use, the beam body mounting seat 1 is installed on the beam body of the bridge, and the pier mounting seat 2 is installed on the pier pier top under the beam body. Since one end of the telescopic rod body 6 is sleeved on the pin shaft 5, it can telescopically rotate in the horizontal plane without moving in the vertical direction. Measuring rod 8 is inserted on the collar 13 of telescopic rod body 6, can rotate by itself, and a sleeve 10 is slidably sleeved outside the lower end of measuring rod 8, so that measuring rod 8 can slide up and down in sleeve 10 without Move in the horizontal direction. The horizontal moving distance of the top of the telescopic rod body 6 can be displayed on the transparent indicator board 4, and this moving distance is the relative displacement of the bridge and the bridge pier in the horizontal direction. The change of the upper edge of the sleeve 10 on the scale line 9 is the relative displacement of the bridge and the pier in the vertical direction. Wherein, the setting of reflective mirror 11 is convenient for observers to observe the situation of scale mark 9 from above.

The bridge displacement measurement device of this embodiment can not only detect the displacement of the bridge in the horizontal direction, but also detect the displacement of the bridge in the vertical direction, and it is directly installed on the bridge during measurement, without power supply equipment, and can be used at any time Observation is not easily affected by the external environment and can be observed for a long time.

The parts of the utility model that are not described in detail are the known techniques of those skilled in the art. Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (2)

1. a bridge displacement measurement apparatus, is characterized in that: include beam body mounting seat and the peace being installed on bridge beam body sidewall Being loaded on the bridge pier mounting seat of bridge pier pier top, the side level in beam body mounting seat is provided with one with the transparent finger of latticed graduation mark Showing plate, the side of described transparent indicator board is connected with beam body mounting seat, at the lower surface one of transparent indicator board by two connecting rods Side is vertically installed with a bearing pin, and one end of a horizontally disposed flexible body of rod is rotationally connected with bearing pin, at the flexible body of rod other end Being provided with a collar, a top measuring bar being vertically arranged is connected with a limit top plate, in cylindrical rods after the described collar Vertically being provided with graduation mark on outer surface, the lower end activity of described measurement bar is inserted in a sleeve, and the bottom of described sleeve is fixed In bridge pier mounting seat.

A kind of bridge displacement measurement apparatus the most according to claim 1, is characterized in that: be provided with one in the side, upper end of sleeve The illuminator that minute surface is arranged obliquely.