CN216113255U - Adjustable guide bracket for displacement measurement - Google Patents

Abstract

The utility model relates to an adjustable guide bracket for displacement measurement, which comprises a mounting base (1), an adjustable support arm (2) and a limiting device (3), wherein the mounting base (1) is fixed on an object to be measured (4), and a rotating shaft (11) is arranged on the mounting base (1); one end of the adjustable support arm (2) is sleeved on the rotating shaft (11) of the mounting base and can rotate along with the rotating shaft (11), and the other end of the adjustable support arm is suspended in the air; the limiting device (3) comprises a limiting screw rod (31) used for limiting the rotating angle of the adjustable support arm (2), one end of the limiting screw rod (31) is detachably fixed on the adjustable support arm (2), and the other end of the limiting screw rod (31) is detachably fixed on the object to be measured (4). The adjustable guide bracket of the utility model enables the measuring channel to be adjusted within a certain column coordinate range, thereby solving the problems of narrow measuring space and uncertain measuring channel; after the measurement is finished, the support can be folded to the inner wall of the object to be measured, and the collision of personnel is avoided, so that mechanical injury is caused.

Description

Adjustable guide bracket for displacement measurement

Technical Field

The utility model belongs to the technical field of displacement measurement of engineering structures, and particularly relates to an adjustable guide support for displacement measurement.

Background

At present, the pendulum method is mostly adopted for measuring the horizontal deflection of an engineering structure, namely: a pendulum testing system is arranged at a position to be tested of the object to be tested 4, and structural deformation of a measurement reference point is transmitted to a testing instrument through the pendulum testing system, so that the purpose of measurement is achieved. The pendulum bob test system comprises a guide bracket 5, a suspension cable 6, a heavy bob 7, a test instrument 8 and an instrument mounting base 9, wherein the test instrument 8 is fixed on the instrument mounting base 9, the upper end of the suspension cable 6 is suspended on the guide bracket 5, the lower end of the suspension cable passes through the test instrument 8 and is connected with the heavy bob 7, and the guide bracket 5 is fixed on an object to be tested 4, as shown in fig. 6. When the pendulum test system is used for measurement, the weight 7 is required to be in a free swing state in order to ensure the test accuracy, and therefore a certain range of the measurement passage 10 (a passage having a cross section of 6cm × 6cm centered on the suspension wire) must be provided along the length direction of the pendulum suspension wire 6, as shown in fig. 7.

However, the pendulum bob measuring system mostly adopts the method of directly fixing the steel wire anchor point on the object to be measured or extending the steel wire anchor point outwards through the non-adjustable guide bracket 5, so that the problems that: (1) the guide support is not adjustable, and the measuring channel is only one; (2) the equipment in the channel is numerous, and the normal use of the reserved measuring channel cannot be ensured; (3) after the measurement is finished, the device is not easy to pack and disassemble, and can cause personnel collision or mechanical injury.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides an adjustable guide support for displacement measurement, so that a measurement channel can be adjusted within a certain column coordinate range, the problems of narrow measurement space and uncertain measurement channel are solved, and after the measurement is finished, the support can be retracted to the inner wall of an object to be measured, so that the injury caused by personnel collision is avoided.

In order to achieve the above purposes, the utility model adopts the technical scheme that: the adjustable guide support for displacement measurement comprises a mounting base, an adjustable support arm and a limiting device, wherein the mounting base is fixed on an object to be measured, and a rotating shaft is arranged on the mounting base; one end of the adjustable support arm is sleeved on the rotating shaft of the mounting base and can rotate along with the rotating shaft, and the other end of the adjustable support arm is suspended in the air; the limiting device comprises a limiting screw rod used for limiting the rotation angle of the adjustable support arm, one end of the limiting screw rod is detachably fixed on the adjustable support arm, and the other end of the limiting screw rod is detachably fixed on the object to be measured.

Further, as mentioned above, the adjustable guide support for displacement measurement, the mounting base includes a mounting back plate and a rotating shaft seat fixed on the mounting back plate, and the rotating shaft is fixed on the mounting back plate through the rotating shaft seat.

Further, an adjustable guide bracket for deflection measurement as described above, the adjustable support arm includes a reference arm and an elongated arm, and the elongated arm is telescopically fixed to an end of the reference arm.

Further, according to the adjustable guide bracket for displacement measurement, two rotating shafts are arranged on the mounting base; the adjustable support arm further comprises an inclined pull arm, one end of the inclined pull arm is sleeved on the other rotating shaft of the mounting base and can rotate around the rotating shaft, and the other end of the inclined pull arm is fixed on the reference arm.

Further, according to the adjustable guide support for displacement measurement, the inclined pull arm and the reference arm are connected with the rotating shaft through the rotating shaft sleeve.

Further, as above-mentioned an adjustable guide bracket for shift measurement, stop device still includes the stopper, and this stopper is fixed between benchmark arm and the oblique arm-draw, and its upper end is connected with the oblique arm-draw, and the lower extreme is connected with the benchmark arm-draw, and the stopper is equipped with the screw through-hole along the horizontal direction, and the screw through-hole on the stopper is passed to stop screw one end to outwards extend to the oblique arm-draw bottom.

Furthermore, as above, the adjustable guide bracket for displacement measurement further comprises an installation base, and the other end of the limit screw is fixed on the object to be measured through the installation base.

Further, as mentioned above, the mounting base includes a mounting base plate and a connecting tab pivotally connected to the mounting base plate.

Further, as for the adjustable guide bracket for displacement measurement, angle steel is adopted as the lengthened arm.

The utility model has the beneficial technical effects that:

(1) according to the utility model, the installation base is arranged, and the rotating shaft is additionally arranged on the installation base, so that the measuring channel can be adjusted within a certain column coordinate range, and the problems that the equipment below the position to be measured is various, the measuring channel is blocked, and the measurement cannot be realized are solved.

(2) According to the utility model, the lengthened arm with adjustable length is arranged on the reference arm, so that the measuring channel can be adjusted within a certain length range, and the problems that the equipment below the position to be measured is various, the measuring channel is blocked and the measurement cannot be realized are solved.

(3) If the installation measuring point is the measuring point that shifts temporarily, after the measurement, adjustable stop screw, extension arm and rotation axis pack up the support to the inner wall of determinand, avoid personnel's collision to cause mechanical injury.

Drawings

FIG. 1 is a schematic view of an adjustable guide bracket according to the present invention;

FIG. 2a is a schematic structural view of the mounting base of FIG. 1;

FIG. 2b is a front view of the mounting base;

FIG. 2c is a side view of the mounting base;

FIG. 2d is a top view of the mounting base;

FIG. 3a is a schematic diagram of the adjustable support arm of FIG. 1;

FIG. 3b is a front view of the adjustable arm;

FIG. 3c is a cross-sectional view taken along A-A of FIG. 3 b;

FIG. 3d is a top view of the adjustable arm;

FIG. 4a is a schematic view of the stop device of FIG. 1;

FIG. 4b is a front view of the spacing device;

FIG. 4c is a side view of the spacing device;

FIG. 4d is a top view of the spacing device;

FIG. 5 is a schematic view of the adjustable range of the measurement channel in use of the adjustable guide bracket;

FIG. 6 is a schematic diagram of a prior art pendulum testing system;

FIG. 7 is a schematic diagram of a prior art pendulum testing system measurement channel.

In the figure:

1-mounting base

11-rotating shaft 12-mounting back plate 13-rotating shaft seat

2-Adjustable support arm

21-reference arm 22-elongated arm 23-inclined pull arm 24-rotating shaft sleeve 25-steel wire hanging ring

26-steel wire hanging ring mounting block

3-position limiting device

31-limit screw 32-limit block 33-mounting base 34-connecting lug

4-test substance

5-guide support

6-suspension cable

7-weight dropper

8-test instrument

9-Instrument mounting base

10-measurement channel

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

It should be noted that the terms "first," "second," and the like in the description, claims, and drawings of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present application described herein may be practiced in an order other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

As shown in fig. 1, the adjustable guiding bracket for deflection measurement provided by the present invention includes a mounting base 1 having a rotating shaft, an adjustable supporting arm 2 having an adjustable length and one end sleeved on the rotating shaft of the mounting base 1 and capable of rotating along with the rotating shaft, and a limiting device 3 having one end fixed on an object to be measured and the other end fixed on the adjustable supporting arm 2 for limiting the rotation angle of the adjustable supporting arm 2.

Fig. 2a-2d show the mounting base 1 of the present invention, wherein the mounting base 1 comprises a mounting backboard 12 and two rotating shafts 11 fixed on the mounting backboard 12. Each rotating shaft 11 is fixed on the mounting back plate 12 through a rotating shaft seat 13, and the rotating shaft seats 13 are connected with the mounting back plate 12 through bolts. The two rotation axes 11 are arranged on the same vertical line. The mounting back plate 12 is a plate-shaped structure, and a mounting hole is formed in the surface of the mounting back plate and used for being connected with the object 4 to be tested.

Thus, the measuring channel can be adjusted within a certain cylindrical coordinate range by arranging the rotating shaft on the mounting base 1.

As shown in fig. 3a-3d, the adjustable boom 2 of the present invention comprises a reference arm 21, an elongated arm 22 and a diagonal arm 23. One end of the reference arm 21 is connected with the rotating shaft 11 at the lower part of the mounting back plate 12 through a rotating shaft sleeve 24 arranged at the end part, the other end is detachably connected with the elongated arm 22, a steel wire hanging ring 25 is fixed at the end part of the elongated arm 22 and used for hanging a hanging rope in a pendulum testing system, and the steel wire hanging ring 25 is fixed on the elongated arm 22 through a steel wire hanging ring mounting block 26. One end of a diagonal arm 23 is connected to the rotary shaft 11 at the upper part of the mounting back plate 12 via a rotary shaft bushing 24 provided at the end thereof, and the other end is fixed to the reference arm 21, and the diagonal arm 23 is used to increase the strength of the reference arm 21. The extension arm 22 is made of angle steel, so that the weight can be reduced. The extension arm 22 is preferably bolted to the reference arm 21, i.e. the reference arm 21 is provided with a plurality of connecting holes, and the extension arm 22 is provided with a plurality of connecting holes corresponding to the reference arm 21, and when in use, the extension length of the reference arm can be adjusted by adjusting the connecting holes at different positions of the extension arm 22 and the reference arm 21.

Thus, an extension arm 22 is provided on the reference arm 21, so that the measuring channel can be adjusted over a certain length range.

As shown in fig. 4a-4b, the limiting device 3 of the present invention includes a limiting screw 31, a limiting block 32, and a mounting base 33. One end of the limit screw 31 is detachably fixed on the adjustable support arm 2 through a limit block 32, and the other end is detachably fixed on the object to be measured through a mounting base 33. The limiting block 32 is arranged between the inclined pull arm 23 and the reference arm 21, the upper end of the limiting block is connected with the inclined pull arm 23, and the lower end of the limiting block is connected with the reference arm 21. The stopper 32 includes two protrusions symmetrically disposed up and down and a connecting member rotatably disposed between the two protrusions, and an internal threaded hole is disposed on the connecting member along a horizontal direction. The mounting base 33 includes a mounting base plate and a connecting tab 34 pivotally connected to the mounting base plate. The limiting screw 31 is provided with an external thread, one end of the limiting screw 31 penetrates through a threaded hole in the limiting block 32 and continues to extend outwards until the bottom of the cable-stayed arm, the other end of the limiting screw passes through the connecting lug 34 to be connected with the mounting base plate, and the mounting base plate is fixed on an object to be measured.

Therefore, the limiting screw rod can play a limiting role and increase the rigidity of the adjustable support arm.

In conclusion, the adjustable guide bracket of the utility model enables the measuring channel to be adjusted within a certain column coordinate range and a certain length range by adding the rotating shaft and the lengthened arm, thereby solving the problems of narrow measuring space and uncertain measuring channel, as shown in fig. 5.

The following describes the installation process of the adjustable guide bracket of the present invention:

1) drilling a hole at the position to be detected of the object to be detected, installing an expansion bolt or a chemical anchor bolt, and fixing an installation back plate of an installation base on the position to be detected of the wall body or the wall body of the object to be detected;

2) the adjustable support arm rotating shaft sleeve is sleeved on the rotating shaft, so that the reliable connection of the adjustable support arm and the mounting back plate is ensured;

3) after the measuring channel is aligned, the steel wire hanging ring is positioned right above the measuring channel by rotating the angle of the adjustable support arm, adjusting the length of the lengthened arm and adjusting the position of the steel wire hanging ring mounting block;

4) locking a bolt on the shaft sleeve of the rotating shaft, and locking a mounting bolt of the lengthened arm and the steel wire hanging ring;

5) connecting a limiting screw rod with a limiting block through threads, adjusting the limiting screw rod to a proper length, and fixing a limiting screw rod mounting base on the cylinder wall or the wall body on one side of the position to be measured;

6) the whole installation of the adjustable guide bracket is completed.

After the adjustable guide support is installed, the suspension cable is fixed on the steel wire hanging ring, and measuring equipment is installed below the suspension cable, so that the deflection measurement of the engineering structure is realized. If the installation measurement point is the temporary displacement measurement point, after the measurement is finished, the limit screw, the lengthened horizontal rod and the rotating shaft can be adjusted, the support is folded to the cylinder wall or the wall body, and mechanical injury caused by personnel collision is avoided.

It should be noted that the adjustable guide bracket of the utility model is not only suitable for nuclear power engineering structure displacement measurement, but also suitable for displacement measurement of other building structures.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. The technical solutions disclosed in the present invention and the inventive concept thereof are equivalent or changed by those skilled in the art, and the obtained technical solutions should be covered by the protection scope of the present invention.

Claims (9)

1. The utility model provides an adjustable guide bracket for shift measurement, includes mounting base (1), adjustable support arm (2) and stop device (3), characterized by: the mounting base (1) is fixed on the object to be tested (4), and a rotating shaft (11) is arranged on the mounting base (1); one end of the adjustable support arm (2) is sleeved on the rotating shaft (11) of the mounting base and can rotate along with the rotating shaft (11), and the other end of the adjustable support arm is suspended in the air; the limiting device (3) comprises a limiting screw rod (31) used for limiting the rotating angle of the adjustable support arm (2), one end of the limiting screw rod (31) is detachably fixed on the adjustable support arm (2), and the other end of the limiting screw rod (31) is detachably fixed on the object to be measured (4).

2. An adjustable guide bracket for deflection measurement according to claim 1, wherein: the mounting base (1) comprises a mounting back plate (12) and a rotating shaft seat (13) fixed on the mounting back plate (12), and the rotating shaft (11) is fixed on the mounting back plate (12) through the rotating shaft seat (13).

3. An adjustable guide bracket for deflection measurement according to claim 2, wherein: the adjustable support arm (2) comprises a reference arm (21) and an elongated arm (22), and the elongated arm (22) is telescopically fixed at the end part of the reference arm (21).

4. An adjustable guide bracket for deflection measurement according to claim 3, wherein: two rotating shafts are arranged on the mounting base (1); the adjustable support arm (2) further comprises an inclined pull arm (23), one end of the inclined pull arm (23) is sleeved on the other rotating shaft of the mounting base (1) and can rotate around the rotating shaft, and the other end of the inclined pull arm is fixed on the reference arm (21).

5. An adjustable guide bracket for deflection measurement according to claim 4, wherein: the inclined pull arm (23) and the reference arm (21) are connected with the rotating shaft (11) through a rotating shaft sleeve (24).

6. An adjustable guide bracket for deflection measurement according to claim 5, wherein: the limiting device (3) further comprises a limiting block (32), the limiting block (32) is fixed between the reference arm (21) and the inclined pull arm (23), the upper end of the limiting block is connected with the inclined pull arm (23), the lower end of the limiting block is connected with the reference arm (21), a threaded through hole is formed in the limiting block (32) in the horizontal direction, and one end of the limiting screw (31) penetrates through the threaded through hole in the limiting block (32) and extends outwards to the bottom of the inclined pull arm (23).

7. An adjustable guide bracket for deflection measurement according to claim 6, wherein: the limiting device (3) further comprises an installation base (33), and the other end of the limiting screw rod (31) is fixed on the object to be measured (4) through the installation base (33).

8. An adjustable guide bracket for deflection measurement according to claim 7, wherein: the mounting base (33) comprises a mounting base plate and a connecting lug piece (34) pivoted on the mounting base plate.

9. An adjustable guide bracket for deflection measurement according to any one of claims 3 to 8, wherein: the lengthening arm (22) is made of angle steel.

Images