CN209280255U - A bridge deflection measuring device - Google Patents

Abstract

The utility model discloses a bridge deflection measuring device, which comprises a base plate, a horizontal telescopic rod, a supporting telescopic rod, a laser emitter and a scale plate. A threaded column is fixed on the base plate, and a horizontal telescopic rod is fixed outside the base plate. And the top end of the horizontal telescopic rod is connected with the support telescopic rod, a bolt is installed on the top frame, and a working spring is installed on the bolt, and the working spring is connected to the top frame, and the bottom end of the bolt is connected to the jack , and the jack is opened on the mounting plate, and the laser transmitter is fixed on the mounting plate, and the bottom end of the scale plate is fixed with a fixed telescopic rod. The bridge deflection measurement device adopts a new structural design, which makes the device more convenient and stable fixed on the railing or other rod-shaped structures of the bridge, and can easily adjust the distance between the laser transmitter and the bridge within a certain range to avoid Remove obstacles, and at the same time quickly align the laser emitter with the scale plate.

Description

A bridge deflection measuring device

technical field

The utility model relates to the technical field of bridge measurement, in particular to a bridge deflection measurement device.

Background technique

Deflection is the linear displacement of the rod axis in the direction perpendicular to the axis or the linear displacement of the middle surface of the plate shell in the direction perpendicular to the middle surface when the force or non-uniform temperature changes, and the bridge deflection refers to the bridge under load. The maximum deformation usually refers to the vertical direction, that is, the vertical deformation of the bridge.

With the continuous use of bridge deflection measurement, the structural design of traditional bridge deflection measurement devices is simple and cannot be easily fixed on bridges. For bridges on the outskirts of cities or in mountainous areas, the measurement emission structure is often used by the side structure of the bridge or near the bridge. Obstacles are blocked, so that the laser transmitter for measurement cannot directly shine on the scale plate for measurement. Therefore, it is necessary to design a bridge deflection measuring device for the above problems.

Contents of the invention

The purpose of this utility model is to provide a bridge deflection measuring device to solve the problem that it cannot be fixed on the bridge conveniently and is often blocked by the side structure of the bridge or obstacles near the bridge in the above background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a bridge deflection measuring device, including a base plate, a horizontal telescopic rod, a supporting telescopic rod, a laser emitter and a scale plate. It runs through the extruded plate, and the extruded plate is fixed with a threaded sleeve, and the threaded sleeve and the adjusting bolt are connected to each other, and the adjusting bolt passes through the extruded plate, and the adjusting bolt is connected to the inner plate, and the outer side of the base plate is fixed with a horizontal telescopic rod, and the top end of the horizontal telescopic rod is connected with the supporting telescopic rod, and the bottom end of the supporting telescopic rod is connected with the outside of the base plate, while the horizontal telescopic rod is fixed with a mounting plate and a top frame, and the top frame is installed with A bolt, and a working spring is installed on the bolt, and the working spring is connected to the top frame, the bottom end of the bolt is connected to the jack, and the jack is opened on the mounting plate, and the laser transmitter is fixed on the mounting plate, The bottom end of the scale plate is fixed with a fixed telescopic rod.

Preferably, both the base plate and the extruded plate are arc-shaped, and the inner sides of the base plate and the extruded plate are densely distributed with hemispherical convex structures made of rubber, and the base plate and the threaded column are welded, and the threaded column Sliding connection with extruded plate.

Preferably, the adjusting bolt constitutes a rotating mechanism through the bearing installed on it and the inner plate, and the inner plate is an arc-shaped plate structure with densely distributed tooth-shaped protrusions on the inner side, and the material of the inner plate is high-speed steel, while the inner plate It is snap-fit connection with the extruded plate.

Preferably, the support telescopic rod forms a rotation mechanism through the cylindrical shaft installed at the top end and the horizontal telescopic rod, and the support telescopic rod constitutes a rotation mechanism through the cylindrical shaft installed at the bottom end and the base plate.

Preferably, the pin is in a sliding connection with the top frame, and the pin is in a snap-fit connection with the socket.

Preferably, the sockets are densely distributed on the outside of the mounting plate at an equiangular angle relative to the center of the mounting plate, and the mounting plate forms a rotation mechanism through bearings installed on its sides and horizontal telescopic rods.

Compared with the prior art, the beneficial effect of the utility model is that the bridge deflection measuring device adopts a new structural design, so that the device is more conveniently and stably fixed on the railing or other rod-shaped structures of the bridge, and can be conveniently Adjust the distance between the laser transmitter and the bridge within a certain range to avoid obstacles, and at the same time quickly align the laser transmitter with the scale plate;

1. The base plate, threaded column, extruded plate, threaded sleeve, adjusting bolt and inner plate work together, which can conveniently connect and fix the whole device and the bridge stably, providing a stable working foundation for the measurement structure in the device;

2. The horizontal telescopic rod, the supporting telescopic rod, the mounting plate, the top frame, the latch, the working spring and the socket work together to easily align the laser transmitter with the scale plate, adjust the position of the laser transmitter, and make the measurement operation possible went well.

Description of drawings

Fig. 1 is a schematic view of the front view structure of the utility model;

Fig. 2 is a schematic diagram of a top view section structure of the substrate of the present invention;

Fig. 3 is a side view sectional structure schematic diagram of the mounting plate of the present invention;

Fig. 4 is a schematic diagram of the front view structure of the scale plate of the utility model.

In the figure: 1. base plate; 2. threaded column; 3. extruded plate; 4. threaded sleeve; 5. adjusting bolt; 6. inner plate; 7. horizontal telescopic rod; 8. supporting telescopic rod; 9. mounting plate; 10. Laser emitter; 11. Top shelf; 12. Latch pin; 13. Working spring; 14. Jack; 15. Scale plate; 16. Fixed telescopic rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a bridge deflection measuring device, including a base plate 1, a threaded column 2, an extruded plate 3, a threaded sleeve 4, an adjusting bolt 5, an inner plate 6, and a horizontal telescopic Rod 7, supporting telescopic rod 8, mounting plate 9, laser transmitter 10, top frame 11, latch 12, working spring 13, jack 14, scale plate 15 and fixed telescopic rod 16, threaded column 2 is fixed on the base plate 1, And the threaded column 2 runs through the extruded plate 3, and the extruded plate 3 is fixed with a threaded sleeve 4, the threaded sleeve 4 and the adjusting bolt 5 are connected to each other, and the adjusting bolt 5 penetrates the extruded plate 3, and the adjusting bolt 5 and the inner plate 6 Connected to each other, the outside of the base plate 1 is fixed with a horizontal telescopic rod 7, and the top end of the horizontal telescopic rod 7 is connected to the supporting telescopic rod 8, and the bottom end of the supporting telescopic rod 8 is connected to the outside of the substrate 1, while the horizontal telescopic rod 7 Mounting plate 9 and top frame 11 are fixed on top frame 11, latch 12 is installed on the top frame 11, and working spring 13 is installed on the latch 12, and working spring 13 is connected with top frame 11 mutually, the bottom of latch 12 and jack 14 They are connected with each other, and the jack 14 is opened on the mounting plate 9, and the laser emitter 10 is fixed on the mounting plate 9, and the bottom end of the scale plate 15 is fixed with a fixed telescopic rod 16.

In this example, the shapes of the base plate 1 and the extruded plate 3 are both arc-shaped, and the inner sides of the base plate 1 and the extruded plate 3 are densely distributed with hemispherical convex structures made of rubber, and the base plate 1 and the threaded column 2 are welded. At the same time, the threaded column 2 and the extruded plate 3 are slidingly connected. The above-mentioned structural design enables the base plate 1 and the extruded plate 3 to approach each other stably, extruding the bridge railing or other rod-shaped structures, and stably fixing the device as a whole;

The adjusting bolt 5 forms a rotating mechanism through the bearing installed on it and the inner plate 6, and the inner plate 6 is an arc-shaped plate structure with densely distributed tooth-like protrusions on the inner side, and the material of the inner plate 6 is high-speed steel, while the inner plate 6 It is engaged with the extrusion plate 3. The above-mentioned structural design makes the inner plate 6 of high-speed steel high hardness and wear-resistant, which can work stably for a long time without deformation, and when the adjusting bolt 5 is rotated, the inner plate can be pushed by the bearing 6 Only change the position in the horizontal direction, and cooperate with the base plate 1 and the extrusion plate 3 to achieve a better fixing effect;

The supporting telescopic rod 8 constitutes a rotation mechanism through the cylindrical shaft installed at its top and the horizontal telescopic rod 7, and the supporting telescopic rod 8 forms a rotating mechanism through the cylindrical shaft installed at its bottom and the base plate 1. The above-mentioned structural design makes the supporting telescopic rod 8 possible. Adapt to the expansion and contraction of the horizontal telescopic rod 7, and can provide stable support for the horizontal telescopic rod 7;

The latch 12 is slidingly connected to the top frame 11, and the latch 12 is engaged with the socket 14. The above-mentioned structural design enables the latch 12 to fix the position of the socket 14 through the socket 14;

The sockets 14 are densely distributed at an equal angle on the outside of the mounting plate 9 with respect to the center of the mounting plate 9, and the mounting plate 9 forms a rotation mechanism through the bearings installed on its side and the horizontal telescopic rod 7. The above-mentioned structural design makes the mounting plate 9 convenient. The rotation of the laser emitter 10 installed on it can adjust the emitting direction, and the position can be fixed conveniently and stably.

Working principle: The horizontal telescopic rod 7, supporting telescopic rod 8, horizontal telescopic rod 7, and supporting telescopic rod 8 in this device are all two-section telescopic rods with length adjustment and fixing functions, which are existing mature technologies, and the laser emitters The device 10 is also the structure used by the current bridge deflection measuring device, which is well known to those skilled in the art, and will not be described in detail here;

When using this device, first move the scale plate 15 and the fixed telescopic rod 16 in Figure 4 to a position away from the bridge, where it needs to be roughly flush with the highest point on the top of the bridge, and insert the fixed telescopic rod 16 into the soil to ensure that the scale plate 15 and the fixed telescopic rod 16 are vertical and do not topple over, adjust the length of the fixed telescopic rod 16 and fix it so that the scale plate 15 faces the highest point of the bridge top, then rotate the nut on the threaded column 2 in Fig. 1 to squeeze the extrusion plate 3 from the threaded Take off the column 2, place the base plate 1 on the outside of the bridge railing, rod-shaped structure or cylindrical structure. Similar structures include bridge guardrails, protective frames and drag cables, and the holes opened on the extruded plate 3 are separated from the bridge railing. , the inner side of the rod-shaped structure or cylindrical structure is aligned with the threaded column 2, the extruded plate 3 is moved close to the threaded column 2, the threaded column 2 is inserted into the hole provided on the extruded plate 3, and the nut is installed on the threaded column 2, Push the inner side of the base plate 1 and the inner side of the extruded plate 3 to closely fit the bridge railing, rod-shaped structure or cylindrical structure. The rubber protrusion on the inner side has the effect of anti-skid fixing. Squeeze and push the extrusion plate 3, the base plate 1 and the extrusion plate 3 clamp the bridge railing, rod-shaped structure or cylindrical structure, then rotate the adjusting bolt 5, the adjusting bolt 5 rotates in the threaded sleeve 4 and pushes the inner plate 6 directions The inner side of the extruded plate 3 moves, and the toothed structure on the inner side of the inner plate 6 closely fits the outer side of the bridge railing, rod-shaped structure or cylindrical structure, and cooperates with the base plate 1 and the extruded plate 3 to fix the device on the bridge railing, rod-shaped structure or on a cylindrical structure;

Then start the laser emitter 10, the laser emitter 10 emits laser light, shoots at the laser emitter 10 installed before, pulls up the latch 12 among Fig. 3 and stretches the working spring 13, makes the latch 12 break away from the socket 14, Rotate the mounting plate 9, so that the mounting plate 9 rotates on the bearing installed on it, until the laser emitted by the laser transmitter 10 falls on the scale reference line in the middle of the scale plate 15, the latch 12 is released, and under the action of the working spring 13 Move down and insert into the socket 14, fix the position of the mounting plate 9 and the laser emitter 10, when the laser emitted by the laser emitter 10 is blocked by obstacles, stretch or shorten the horizontal telescopic rod 7 in Figure 1 to support The telescopic rod 8 is also stretched or shortened synchronously. After the laser beam emitted by the laser transmitter 10 is adjusted to no longer be blocked, the length of the telescopic rod 8 is fixed by supporting the fixed structure on the telescopic rod 8, so that the mounting plate 9 and the The position of the laser emitter 10 is fixed, move the scale plate 15 and fix the telescopic rod 16 until the laser emitted by the laser emitter 10 is irradiated on the scale plate 15, then adjust the mounting plate 9 and the laser emitter 10 again according to the previous operation, so that The laser emitted by the laser transmitter 10 falls on the scale reference line in the middle of the scale plate 15, and finally the load-bearing vehicle can be directed to drive on the bridge. By observing the distance moved by the laser emitted by the laser transmitter 10 on the scale plate 15 and recording the value , complete the bridge deflection measurement.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. a kind of bridge deflection measurement device, including substrate (1), horizontal extension bar (7), support telescopic bar (8), laser emitter (10) and scale plate (15), it is characterised in that: be fixed with threaded post (2) on the substrate (1), and threaded post (2) is through squeezing Plate (3), and thread bush (4) are fixed on stripper plate (3), the thread bush (4) and adjusting bolt (5) are connected with each other, and are adjusted It saves bolt (5) and runs through stripper plate (3), and adjust bolt (5) and inner panel (6) and be connected with each other, the outside of the substrate (1) is fixed Have horizontal extension bar (7), and the top of horizontal extension bar (7) and support telescopic bar (8) is connected with each other, and support telescopic bar (8) outside of bottom end and substrate (1) is connected with each other, while mounting plate (9) and upper frame are fixed on horizontal extension bar (7) (11), it is equipped with bolt (12) on the upper frame (11), and working spring (13) is installed, and working spring on bolt (12) (13) it is connected with each other with upper frame (11), the bottom end and jack (14) of the bolt (12) are connected with each other, and jack (14) is provided with On mounting plate (9), and laser emitter (10) are fixed on mounting plate (9), the bottom end of the scale plate (15) is fixed with Determine telescopic rod (16).

2. a kind of bridge deflection measurement device according to claim 1, it is characterised in that: the substrate (1) and stripper plate (3) shape is arc, and the inside of substrate (1) and stripper plate (3) is intensively distributed with the hemispherical projections of rubber material Structure, and substrate (1) and threaded post (2) they are to be welded to connect, while threaded post (2) is to be slidably connected with stripper plate (3).

3. a kind of bridge deflection measurement device according to claim 1, it is characterised in that: the adjusting bolt (5) passes through The bearing installed thereon and inner panel (6) constitute rotating mechanism, and inner panel (6) is the arc plate of inside dense distribution detent projection Structure, and the material of inner panel (6) is high-speed steel, while inner panel (6) is to be connected together with stripper plate (3).

4. a kind of bridge deflection measurement device according to claim 1, it is characterised in that: the support telescopic bar (8) is logical The columnar shaft and horizontal extension bar (7) for crossing the installation of its top constitute rotating mechanism, and support telescopic bar (8) is installed by its bottom end Columnar shaft and substrate (1) constitute rotating mechanism.

5. a kind of bridge deflection measurement device according to claim 1, it is characterised in that: the bolt (12) and upper frame (11) to be slidably connected, and bolt (12) is to be connected together with jack (14).

6. a kind of bridge deflection measurement device according to claim 1, it is characterised in that: the jack (14) is in mounting plate (9) center angularly dense distribution of the outside about mounting plate (9), and the bearing installed by its avris of mounting plate (9) with Horizontal extension bar (7) constitutes rotating mechanism.