CN207703194U - A kind of installation pedestal of strain gauge - Google Patents

Abstract

The utility model discloses a mounting base of a strain gauge, which comprises a bracket and two magnetic watch bases, the two magnetic watch bases are respectively connected to the two ends of the bracket, and the bracket is provided with a The connecting seat of the fixed seat, and the direction of the two magnetic watch seats are consistent. The fixing seat of the strain gauge is installed on the connecting seat of the utility model, and the magnetic switches of the two magnetic watch seats are turned on, and the two magnetic watch seats generate magnetic force and are adsorbed on the surface to be measured of the steel structure, thereby fixing the fixing seat of the strain gauge on the On the surface to be tested of the steel structure, apply glue on the side of the strain gauge fixing seat, and wait for the glue to solidify to complete the installation work. The installer does not need to hold the strain gauge to wait for the glue to solidify, which greatly reduces the work intensity.

Description

Mounting base for a strain gauge

technical field

The utility model relates to the technical field of measuring equipment, in particular to a mounting base of a strain gauge.

Background technique

With the continuous development of engineering, the application of structural strain monitoring in bridges, highways, railways, subways, tunnels, and pile foundations is becoming more and more important. The monitoring and monitoring of engineering structures has become an important part of construction technology, among which strain gauges are the main stress testing tools.

When in use, the strain gauge should be attached to the surface of the steel structure to be measured. The traditional installation method is to apply glue on the fixing seat of the strain gauge first. Most of them use AB glue or epoxy resin glue. The long-term fixing effect of these glues is relatively Good, but the solidification is relatively slow, and it takes a long time to hold the strain gauge light belt to solidify the glue, especially when it is installed on the side or top of the structure, in order to fix the strain gauge, the installer needs to press the strain gauge hard all the time, if it is installed The ambient temperature is low, the curing time of the glue will be longer, which is not conducive to manual operation, and when the installation position is relatively high, the installer needs to carry out the installation on a step ladder, which makes the installation more difficult; or when the installation position is dangerous, Pressing the strain gauge by hand will further increase the risk factor; in addition, when the installer holds the fixed strain gauge, it is easy to move the installation position and deviate from the original fixed position, causing errors and affecting the measurement accuracy.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a strain gauge installation base, which is easy to use, reduces the work intensity of installers, and improves the installation accuracy of the strain gauge.

The technical scheme that the utility model solves its technical problem adopts is:

A mounting base for a strain gauge, comprising a bracket and two magnetic bases, the two magnetic bases are respectively connected to the two ends of the bracket, and the bracket is provided with a connection for connecting a fixing base of the strain gauge Seat, the orientation of the two magnetic watch seats is the same.

As an improvement of the above technical solution, guide rails are provided on the support, and the two ends of the guide rails are connected to two magnetic watch bases. Bolt to secure position.

As a further improvement of the above technical solution, the connecting seat is provided with a mounting plate for installing the fixing seat of the strain gauge, the mounting plate is slidably connected to the connecting seat, and the connecting seat is provided with a screw to push the mounting plate.

As a further improvement, a handwheel is connected to the end of the screw.

As a further improvement, a ball sliding sleeve is fitted on the screw rod, the mounting plate is mounted on the ball sliding sleeve, and an angle adjustment mechanism is provided between the mounting plate and the ball sliding sleeve.

As a further improvement, the angle adjustment mechanism includes a screw rod fixed on the ball sliding sleeve, one end of the mounting plate is hinged to the ball sliding sleeve, and the other end is provided with a through hole for the screw rod to pass through. The sleeve is equipped with a spring, and the two ends of the spring abut against the ball sliding sleeve and the mounting plate respectively, and the end of the screw rod is connected with an adjusting nut.

As a further improvement, the bracket is set as a spring steel bar.

The beneficial effects of the utility model are: when in use, the fixing seat of the strain gauge is installed on the connecting seat first, and then the two magnetic gauge seats are pasted on the surface to be measured of the steel structure, and the magnetic switches of the two magnetic gauge seats are turned on. , the two magnetic bases generate magnetic force to adsorb on the surface to be measured of the steel structure, thereby fixing the fixing seat of the strain gauge to the surface to be measured of the steel structure, and then apply glue on the side of the fixing seat of the strain gauge, and wait The installation can be completed after the glue is solidified. Since the magnetic base is used to fix the strain gauge, the installer does not need to hold the strain gauge to wait for the glue to solidify, which greatly reduces the work intensity. Another strain gauge can be installed while waiting for the glue to solidify. It can save a lot of working time, and one installer can install multiple strain gauges, so that the work efficiency of the installer is greatly improved. After the glue is solidified, turn off the magnetic switch of the magnetic watch base to avoid the interference of magnetic force on the data collected by the sensor of the strain gauge and ensure the accuracy.

Description of drawings

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

Fig. 1 is the top view of the utility model;

Fig. 2 is the front view of the utility model.

Detailed ways

Referring to Figures 1 to 2, a mounting base for a strain gauge includes a bracket 1 and two magnetic bases 2, the two magnetic bases 2 are respectively connected to the two ends of the bracket 1, and the bracket 1 A connection base 3 for connecting the fixing base of the strain gauge is provided, and the orientations of the two magnetic gauge bases 2 are consistent. With the above-mentioned structure, the fixing seat of the strain gauge is installed on the connecting seat 3, and then the two magnetic watch seats 2 are pasted on the surface to be measured of the steel structure, and the magnetic switches of the two magnetic watch seats 2 are turned on, and the two magnetic watch seats 2 Generate magnetic force to adsorb on the surface to be measured of the steel structure, so as to fix the fixing seat of the strain gauge on the surface to be tested of the steel structure, and then apply glue on the edge of the fixing seat of the strain gauge, and wait for the glue to solidify to complete the installation Due to the use of the magnetic base 2 to fix the strain gauge, the installer does not need to hold the strain gauge to wait for the glue to solidify, which greatly reduces the work intensity. Another strain gauge can be installed while waiting for the glue to solidify, which can save a lot of work time , One installer can install multiple strain gauges, which greatly improves the work efficiency of the installer. After the glue is solidified, turn off the magnetic switch of the magnetic watch base 2, so as to prevent the magnetic force from interfering with the data collected by the sensor of the strain gauge and ensure the accuracy.

In order to facilitate position adjustment, in this embodiment, preferably, guide rails are provided on the support 1, and the two ends of the guide rails are connected to two magnetic watch bases 2, and the connecting base 3 is slidably connected to the guide rails. , the connecting seat 3 is provided with a locking bolt to fix the position, the connecting seat 3 can move along the guide rail together with the strain gauge to adjust the position, and then be fixed by the locking bolt.

In this embodiment, preferably, the connecting base 3 is provided with a mounting plate for installing the fixing base of the strain gauge, and the mounting plate is slidably connected to the connecting base 3, and the connecting base 3 is provided with a screw to push the installation plate. Preferably, the end of the screw is connected with a handwheel. In this embodiment, preferably, a sliding ball sleeve is fitted on the screw, the mounting plate is mounted on the sliding ball sleeve, and an angle adjustment mechanism is provided between the mounting plate and the sliding ball sleeve. Preferably, the angle adjustment mechanism includes a screw rod fixed on the ball sliding sleeve, one end of the mounting plate is hinged to the ball sliding sleeve, and the other end is provided with a through hole for the screw rod to pass through. The sleeve is equipped with a spring, and the two ends of the spring abut against the ball sliding sleeve and the mounting plate respectively, and the end of the screw rod is connected with an adjusting nut. Preferably, the bracket 1 is configured as a spring steel bar. With the above structure, the angle of the strain gage can be adjusted by turning the adjusting nut to push the mounting plate to rotate. In order to ensure that the fixing seat of the strain gage is close to the steel structure when the glue solidifies, the strain gage can be slightly protruded through the screw, and the spring can be used The elasticity of the steel bar produces a certain pressure on the strain gauge, keeping the strain gauge close to the steel structure.

The above is only a preferred embodiment of the utility model, but the utility model is not limited to the above-mentioned embodiment, as long as it achieves the technical effect of the utility model by any same or similar means, it should fall into the scope of the utility model within the scope of protection.

Claims (7)

1. An installation base of a strain gauge, is characterized in that: comprise support (1) and two magnetic table bases (2), two described magnetic table bases (2) are connected to the two sides of support (1) respectively At the end, the support (1) is provided with a connecting seat (3) for connecting the fixing seat of the strain gauge, and the orientation of the two magnetic watch seats (2) is consistent. 2. The mounting base of a strain gauge according to claim 1, characterized in that: the support (1) is provided with a guide rail, and the two ends of the guide rail are connected to two magnetic table bases (2), The connecting seat (3) slides on the guide rail of the connecting seat, and locking bolts are arranged on the connecting seat (3) to fix the position. 3. The mounting base of a strain gauge according to claim 2, characterized in that: the connecting seat (3) is provided with a mounting plate for mounting the fixing seat of the strain gauge, and the mounting plate is slidably connected to the connecting seat A seat (3), the connecting seat (3) is provided with a screw to push the mounting plate. 4 . The installation base of a strain gauge according to claim 3 , wherein a handwheel is connected to the end of the screw. 5 . 5. The mounting base of a strain gauge according to claim 4, characterized in that: the screw rod is covered with a ball sliding sleeve, the mounting plate is mounted on the ball sliding sleeve, and the mounting plate is connected to the ball sliding sleeve. An angle adjustment mechanism is arranged between the ball sliding sleeves. 6. The mounting base of a strain gauge according to claim 5, wherein the angle adjustment mechanism includes a screw fixed on the ball sliding sleeve, and one end of the mounting plate is hinged to the ball sliding sleeve , the other end is provided with a through hole for the threaded rod to pass through, and a spring is set on the threaded rod, and the two ends of the spring are respectively abutted against the ball sliding sleeve and the mounting plate, and the end of the threaded rod is connected with an adjustment nuts. 7. The installation base of a strain gauge according to claim 6, characterized in that: the bracket (1) is set as a spring steel bar.