CN213180721U

CN213180721U - Bridge static load experiment displacement monitoring devices

Info

Publication number: CN213180721U
Application number: CN202022711263.7U
Authority: CN
Inventors: 杨文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-05-11
Anticipated expiration: 2030-11-21

Abstract

The utility model discloses a bridge static load experiment displacement monitoring devices belongs to bridge monitoring facilities technical field. A bridge static load experiment displacement monitoring device comprises a sleeve and a strain type pressure sensor, wherein a first threaded rod is connected with the inner thread of the sleeve, the top of the first threaded rod is rotatably connected with a connecting seat, a cross beam is rotatably connected onto the connecting seat, a horizontal measuring instrument is fixedly connected to the side wall of the cross beam, a first sliding groove is formed in the cross beam, a telescopic rod is slidably connected into the first sliding groove, the strain type pressure sensor is fixedly connected to the output end of the telescopic rod, a roller is fixedly connected to the top of the strain type pressure sensor, and a driving part for driving the telescopic rod to slide is arranged on the connecting seat; the utility model discloses a measure the numerical value change of the whole bottom surface of bridge to obtain than the more comprehensive numerical value of fixed point test, consequently experimental data is more accurate.

Description

Bridge static load experiment displacement monitoring devices

Technical Field

The utility model relates to a bridge monitoring facilities technical field especially relates to a bridge static load experiment displacement monitoring devices.

Background

The bridge load test is a special scientific test work for directly loading and testing a bridge structure, the test of a new bridge is used for testing the construction quality of the bridge, judging the actual bearing capacity of the bridge structure, verifying the design theory and design method of the bridge structure, the test of an old bridge is used for determining the bearing capacity of the bridge structure and analyzing the causes and change rules of bridge diseases, and the test method of the bridge is divided into a static load test and a static load test.

In the prior art, the load can be directly measured by using a strain type pressure sensor, but the load is measured at a fixed point, and the whole change of the bridge ground is not completely measured, so that the measurement precision is low, and a bridge static load experiment displacement monitoring device needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the lower problem of measurement accuracy among the prior art, and the bridge static load experiment displacement monitoring devices who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a bridge static load experiment displacement monitoring devices, includes sleeve and strain type pressure sensor, sleeve female connection has first threaded rod, the top of first threaded rod is rotated and is connected with the connecting seat, it is connected with the crossbeam to rotate on the connecting seat, the lateral wall fixedly connected with level gauge of crossbeam, first spout has been seted up in the crossbeam, sliding connection has the telescopic link in the first spout, strain type pressure sensor fixed connection is at the output of telescopic link, strain type pressure sensor's top fixedly connected with gyro wheel, be provided with on the connecting seat and be used for driving the gliding drive division of telescopic link.

Preferably, the telescopic link includes sill bar and installation pole, fixedly connected with second motor in the sill bar, the output end fixedly connected with second threaded rod of second motor, set up the screw hole corresponding with the second threaded rod in the installation pole, the bottom fixedly connected with slide bar of installation pole, set up the third spout corresponding with the slide bar in the sill bar, it connects at the top of installation pole to become formula pressure sensor fixed connection.

Preferably, the drive part includes first motor and stay cord, first motor fixed connection is on the connecting seat, the output fixedly connected with reel of first motor, the both ends difference fixed connection of stay cord is on sill bar and reel.

Preferably, the beam is rotatably connected with an auxiliary wheel, and the auxiliary wheel is matched with the pull rope.

Preferably, the cross beams are provided with a plurality of groups, and the plurality of groups of cross beams are rotatably connected through a rotating shaft.

Preferably, a second sliding groove is formed in the first sliding groove, a sliding block is fixedly connected to the bottom of the bottom rod, and the sliding block is connected to the second sliding groove in a sliding mode.

Preferably, telescopic bottom fixedly connected with base, the bottom of base is equipped with the claw nail, fixedly connected with adjustment handle on the first threaded rod.

Compared with the prior art, the utility model provides a bridge static load experiment displacement monitoring devices possesses following beneficial effect:

1. this bridge static load experiment displacement monitoring devices is equipped with the multiunit through the crossbeam, and the multiunit crossbeam rotates through the pivot to be connected, can fold the device to save and deposit required space.

2. This bridge static test displacement monitoring devices, through having seted up the second spout in the first spout, the bottom fixedly connected with slider of sill bar, slider sliding connection make more stable that the telescopic link is connected in the second spout, thereby avoid the telescopic link to take place to incline and lead to the measured data inaccurate.

3. This bridge static test displacement monitoring devices, through telescopic bottom fixedly connected with base, the bottom of base is equipped with the claw nail, fixedly connected with adjustment handle on the first threaded rod, and the base can disperse pressure, thereby avoids the connecting seat to sink and leads to measured data inaccurate, and the claw nail can make the base grab ground more steady, avoids the base to take place to slide, and the level that the handle can make first threaded rod adjust the connecting seat is more convenient.

Drawings

Fig. 1 is a schematic structural view of a displacement monitoring device for a static load experiment of a bridge according to the present invention;

fig. 2 is the utility model provides a bridge static load experiment displacement monitoring devices fig. 1 in the A part the schematic structure diagram.

In the figure: 1. a sleeve; 101. a first threaded rod; 1011. a handle; 102. a base; 1021. claw nails; 2. a connecting seat; 3. a cross beam; 301. a first chute; 302. a second chute; 303. a rotating shaft; 4. a level gauge; 5. a first motor; 501. a reel; 502. pulling a rope; 503. an auxiliary wheel; 6. a bottom bar; 601. a strain gauge pressure sensor; 6011. a roller; 602. mounting a rod; 6021. a slide bar; 6022. a threaded hole; 603. a second motor; 6031. a second threaded rod; 6032. a third chute; 604. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, a displacement monitoring device for bridge static load experiment, including sleeve 1 and strain type pressure sensor 601, there are first threaded rod 101 in sleeve 1 female connection, the top of first threaded rod 101 is rotated and is connected with connecting seat 2, it is connected with crossbeam 3 to rotate on connecting seat 2, crossbeam 3's lateral wall fixed connection has level gauge 4, first spout 301 has been seted up in crossbeam 3, sliding connection has the telescopic link in first spout 301, strain type pressure sensor 601 fixed connection is at the output of telescopic link, strain type pressure sensor 601's top fixedly connected with gyro wheel 6011, be provided with on connecting seat 2 and be used for driving the gliding drive division of telescopic link.

The telescopic link includes sill bar 6 and installation pole 602, fixedly connected with second motor 603 in the sill bar 6, the output fixedly connected with second threaded rod 6031 of second motor 603, seted up in the installation pole 602 with the corresponding screw hole 6022 of second threaded rod 6031, the bottom fixedly connected with slide bar 6021 of installation pole 602, seted up in the sill bar 6 with the corresponding third spout 6032 of slide bar 6021, strain type pressure sensor 601 fixed connection is at the top of installation pole 602.

The drive portion includes first motor 5 and stay cord 502, and first motor 5 fixed connection is on connecting seat 2, the output fixedly connected with reel 501 of first motor 5, and the both ends difference fixed connection of stay cord 502 is on sill bar 6 and reel 501.

An auxiliary wheel 503 is rotatably connected to the beam 3, and the auxiliary wheel 503 is engaged with the pull rope 502.

The crossbeam 3 is equipped with the multiunit, and multiunit crossbeam 3 rotates through pivot 303 and connects.

A second sliding groove 302 is formed in the first sliding groove 301, a sliding block 604 is fixedly connected to the bottom of the bottom rod 6, and the sliding block 604 is slidably connected in the second sliding groove 302.

The bottom of the sleeve 1 is fixedly connected with a base 102, the bottom of the base 102 is provided with a claw nail 1021, and the first threaded rod 101 is fixedly connected with an adjusting handle 1011.

In the utility model, the telescopic rod is inserted into the first chute 301 and the second chute 302, the beam 3 is completely opened, the base 102 is fixed on the ground by the claw nail 1021, the two pull ropes 502 are respectively connected with the two sides of the bottom rod 6, the handle 1011 is rotated to adjust the height of the connecting seat 2, the level gauge 4 is used to determine whether the beam 3 is completely parallel to the ground, after the determination, the second motor 603 is started, the second motor 603 is used to rotate the second threaded rod 6031, thereby the mounting rod 602 is lifted, the roller 6011 is abutted against the bottom of the bridge, then the first motor 5 is started, the first motor 5 is used to slide the bottom rod 6 by the pull rope 502, the roller 6011 is moved by being clung to the bottom of the bridge, the value transmitted by the strain type pressure sensor 601 when the roller 6011 is moved is recorded, the load is added to the bridge, the first motor 5 is restarted, the roller 6011 is used to reciprocate, the value transmitted by the strain type pressure sensor 601 is, the contrast does not add the numerical value of load bridge bottom surface to reacing required numerical value, the device is through measuring the numerical value change of the whole bottom surface of bridge, thereby has reachd more comprehensive numerical value than the fixed point test, therefore the experimental data is more accurate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a bridge static load experiment displacement monitoring devices, includes sleeve (1) and strain type pressure sensor (601), its characterized in that, sleeve (1) internal thread connection has first threaded rod (101), the top of first threaded rod (101) is rotated and is connected with connecting seat (2), it is connected with crossbeam (3) to rotate on connecting seat (2), the lateral wall fixed connection of crossbeam (3) has spirit level measuring instrument (4), first spout (301) have been seted up in crossbeam (3), sliding connection has the telescopic link in first spout (301), strain type pressure sensor (601) fixed connection is at the output of telescopic link, the top fixedly connected with gyro wheel (6011) of strain type pressure sensor (601), be provided with on connecting seat (2) and be used for driving the gliding drive division of telescopic link.

2. The bridge dead load experiment displacement monitoring device of claim 1, characterized in that the telescopic link comprises a bottom rod (6) and a mounting rod (602), a second motor (603) is fixedly connected in the bottom rod (6), a second threaded rod (6031) is fixedly connected to the output end of the second motor (603), a threaded hole (6022) corresponding to the second threaded rod (6031) is formed in the mounting rod (602), a sliding rod (6021) is fixedly connected to the bottom of the mounting rod (602), a third sliding groove (6032) corresponding to the sliding rod (6021) is formed in the bottom rod (6), and the strain type pressure sensor (601) is fixedly connected to the top of the mounting rod (602).

3. The bridge dead load experiment displacement monitoring device of claim 2, wherein the driving part comprises a first motor (5) and a pull rope (502), the first motor (5) is fixedly connected to the connecting base (2), a winding wheel (501) is fixedly connected to the output end of the first motor (5), and two ends of the pull rope (502) are respectively fixedly connected to the bottom rod (6) and the winding wheel (501).

4. The bridge dead load experiment displacement monitoring device according to claim 3, wherein an auxiliary wheel (503) is rotatably connected to the cross beam (3), and the auxiliary wheel (503) is matched with the pull rope (502).

5. The bridge dead load experiment displacement monitoring device according to claim 1, wherein a plurality of groups of the cross beams (3) are arranged, and the plurality of groups of the cross beams (3) are rotatably connected through a rotating shaft (303).

6. The bridge dead load experiment displacement monitoring device according to claim 2, wherein a second sliding groove (302) is formed in the first sliding groove (301), a sliding block (604) is fixedly connected to the bottom of the bottom rod (6), and the sliding block (604) is slidably connected in the second sliding groove (302).

7. The bridge dead load experiment displacement monitoring device according to claim 1, wherein a base (102) is fixedly connected to the bottom of the sleeve (1), a claw nail (1021) is arranged at the bottom of the base (102), and an adjusting handle (1011) is fixedly connected to the first threaded rod (101).