Building structure crack measuring device

Abstract

The utility model relates to the technical field of crack measurement, in particular to a building structure crack measuring device. The same position of the building crack can be continuously and repeatedly monitored, and the measurement precision is further improved; comprising two clamping jaws arranged in parallel, a scissor connecting piece, a graduated scale and a vernier seat, the two clamping jaws are connected through the scissor connecting piece, the scissor connecting piece comprises two connecting rods with the middles hinged to each other, one ends of the two connecting rods are hinged to the two clamping jaws respectively, sliding columns are rotationally installed at the other ends of the two connecting rods, and sliding grooves matched with the sliding columns are formed in the clamping jaws; the sliding column is installed in the sliding groove in a sliding mode, the graduated scale is fixedly installed at the end of one clamping jaw, the vernier seat is fixedly installed at the end of the other clamping jaw, a penetrating opening allowing the graduated scale to pass through is formed in the vernier seat, the graduated scale penetrates through the penetrating opening, a reading vertical plane perpendicular to the graduated scale is arranged on the vernier seat, and an elastic supporting piece is installed between the two clamping jaws. The two clamping jaws are elastically connected through the elastic supporting piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crack measurement, particularly relate to a building structure crack measuring device. BACKGROUND

[0002] It is known that building crack measurement is an important link in building engineering quality detection, structure safety evaluation and maintenance management; once building structure appears crack, needs through professional tool to carry out long -term measurement to crack width.

[0003] Building crack becomes gradually larger along with time elapses, and the above-mentioned monitoring tool, the position of each measurement will have difference, and when the edge of crack measuring point changes, it is difficult to accurately measure the width of crack, and the repeatability of measurement data is poor. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiency of prior art, the utility model provides a building structure crack measuring device that can realize continuous repeated monitoring of the same position of building crack and further improve the measurement accuracy.

[0006] (II) technical scheme

[0007] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a building structure crack measuring device, including two mutually parallel arrangement's dog, shear fork connecting piece, scale and vernier seat, two dogs are connected through shear fork connecting piece, the shear fork connecting piece includes two middle parts mutually hinged connecting rod, one end of two connecting rods is hinged with two dogs respectively, and the other end of two connecting rods is rotatably installed with slide column, the dog is equipped with the sliding groove that is in agreement with slide column, the slide column is slidably installed in the sliding groove, the scale is fixedly installed at the end of one dog, the vernier seat is fixedly installed at the end of another dog, the vernier seat is equipped with the through -going hole that allows the scale to pass, the scale passes through from the through -going hole, the vernier seat is equipped with the reading vertical plane perpendicular to the scale, and the elastic brace is installed between two dogs, and two dogs are elastically connected through the elastic brace;Further, two dogs are arranged perpendicularly to the scale, the elastic brace is preferably spring, and the two ends of spring are fixedly connected with two dogs respectively, spring can be multiple, and the elastic brace can also adopt V-shaped spring piece and other elastic elements with equivalent elastic effect.

[0008] Preferably, it further includes a fixed plate, and the dog connected with the scale is installed on the fixed plate;Further, the fixed plate is fixedly installed on the side wall of the building structure crack through expansion bolt.

[0009] Preferably, the fixed plate is provided with a rail groove, a set of clamping jaws fixedly connected with the scale are provided with sliding rails, the sliding rails are slidingly installed in the rail groove, and the sliding rails are fixedly connected with the rail groove through bolts.

[0010] Preferably, the fixed plate is provided with a bubble level.

[0011] Preferably, the fixed plate is provided with a transparent card slot.

[0012] Preferably, the vernier seat is provided with a notch portion adjacent to the reading vertical plane.

[0013] Preferably, the two clamping jaws are provided with tapered clamping portions on the side in contact with the inner wall of the building structure crack, the extension line of the tapered angle edge of one of the tapered clamping portions passes through the zero scale line of the scale, and the extension line of the tapered angle edge of the other tapered clamping portion passes through the reading vertical plane on the vernier seat.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the building structure crack measuring device has the following beneficial effects: the building structure crack measuring device, the two clamping jaws are pressed to be close to the superposition state, the two superposed clamping jaws are inserted into the building structure crack in a horizontal state, under the action of the elastic supporting piece and the scissors connecting piece, the two clamping jaws are in parallel and move away from each other, the vernier seat moves relative to the scale, and the reading vertical plane on the vernier seat coincides with the scale line at the scale, so that the width of the building crack is obtained; when the crack width becomes larger, under the action of the elastic supporting piece, the two clamping jaws are always in close contact with the inner wall of the building crack, and the position of the vernier seat at the scale also changes synchronously, so that continuous and repeated monitoring of the same position of the building crack can be realized, human intervention is not required during the monitoring, human operation errors are reduced, and the building crack measurement accuracy is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a three-dimensional structure schematic diagram of the utility model;

[0017] Fig. 2 is a front view plane structure schematic diagram of the utility model;

[0018] Fig. 3 is a top view plane structure schematic diagram of the utility model;

[0019] Marked in the drawing: 1, the claw; 2, the scale; 3, the vernier seat; 4, the connecting rod; 5, the slide column; 6, the sliding groove; 7, the reading vertical plane; 8, the elastic brace; 9, the conical clamping part; 10, the fixed plate; 11, the rail slot; 12, the slide rail; 13, the bubble level; 14, the transparent card slot; 15, the notch part. DETAILED DESCRIPTION

[0020] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other.

[0022] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] Embodiment 1

[0024] Please refer to Figs. 1-3 A building structure crack measuring device, comprising two mutually parallel arranged claws 1, a scissors connecting piece, a scale 2 and a vernier seat 3, the two claws 1 are connected through the scissors connecting piece, the scissors connecting piece comprises two middle parts hinged connecting rods 4, one end of the two connecting rods 4 is hinged with the two claws 1 respectively, the other end of the two connecting rods 4 is rotatably installed with a slide column 5, the claw 1 is provided with a sliding groove 6 matched with the slide column 5, the slide column 5 is slidably installed in the sliding groove 6, the scale 2 is fixedly installed at the end of one claw 1, the vernier seat 3 is fixedly installed at the end of the other claw 1, the vernier seat 3 is provided with a through hole allowing the scale 2 to pass through, the scale 2 passes through the through hole, the vernier seat 3 is provided with a reading vertical plane 7 perpendicular to the scale 2, the two claws 1 are installed with an elastic brace 8, the two claws 1 are elastically connected through the elastic brace 8; further, the two claws 1 are arranged perpendicularly to the scale 2, the elastic brace 8 is preferably a spring, the two ends of the spring are fixedly connected with the two claws 1 respectively, the spring can be multiple, the elastic brace 8 can also use other elastic members with equivalent elastic effect such as V-shaped elastic sheet; it should be noted that in this embodiment, one end surface of one claw 1 in contact with the building crack is over the zero scale line on the scale 2, the other end surface of the other claw 1 in contact with the building crack coincides with the reading vertical plane 7 on the vernier seat 3, the reading of the coincident scale on the scale 2 and the reading vertical plane 7 is the actual width of the building crack; in another embodiment, the vernier seat 3 can use a vernier caliper, which can further accurately measure the width of the crack, the specific principle can be referred to the vernier caliper, which will not be described further here.

[0025] Specifically, it also includes a fixing plate 10, and a set of claws 1 fixedly connected to the scale 2 are installed on the fixing plate 10; furthermore, the fixing plate 10 is fixedly installed on one side of the wall of the building structure crack by expansion bolts, etc. It should be noted that the fixing plate 10 is fixedly installed on a wall surface that is relatively not easy to move at the crack opening of the building.

[0026] Specifically, the fixed plate 10 is provided with a rail groove 11, and a set of claws 1 fixedly connected to the scale 2 is provided with a slide rail 12. The slide rail 12 is slidably installed in the rail groove 11, and the slide rail 12 and the rail groove 11 are fixedly connected by bolts. Furthermore, the rail groove 11 is provided with a sliding groove 6 that allows the bolt to slide. The bolt is screwed onto the slide rail 12, and the fixed connection between the slide rail 12 and the rail groove 11 is achieved by tightening the bolt.

[0027] Specifically, a bubble level 13 is installed on the fixed plate 10; furthermore, a scale 2 is arranged parallel to the fixed plate 10.

[0028] Specifically, the fixing plate 10 is provided with a transparent card slot 14.

[0029] Specifically, a notch 15 is provided on the vernier caliper 3 near the reading vertical plane 7.

[0030] The building structure crack measuring device provided in this embodiment fixes the fixing plate 10 to the wall on one side of the building crack, which can improve the installation stability of the crack measuring device and prevent it from falling during the measurement process. By pushing the corresponding claw 1, the slide rail 12 can slide in the slide groove 6. When the claw 1 is in close contact with the inner wall of the building crack, the slide rail 12 and the track groove 11 are fixed and locked by bolts to ensure that the claw 1 is in close contact with the inner wall of the building crack, thus ensuring the accuracy of subsequent building crack width measurement. The installation level of the fixing plate 10 can be checked by the bubble level 13. The inspection is conducted to ensure that the fixing plate 10 is installed in a horizontal position, thereby ensuring that the scale 2 is in a horizontal position, providing a guarantee for the accuracy of subsequent building crack width measurement and further improving the measurement accuracy of building cracks; the measurement width and measurement date of each building crack can be recorded by a card, and the card can be inserted into the transparent card slot 14 so that the measurement personnel can compare the measurement data in real time; the notch 15 makes it easy for the measurement personnel to accurately find the reading vertical plane 7, and the notch 15 also makes it easy for the operator to read the scale data of the scale 2 that coincides with the reading vertical plane 7.

[0031] Example 2

[0032] The structural crack measuring device provided in Example 1 has been further optimized. For details, please refer to... Fig. 3, one of the conical clamping portions 9 has a conical angle edge extension line passing through the zero scale line of the scale 2, and the other conical clamping portion 9 has a conical angle edge extension line passing through the reading vertical plane 7 on the vernier seat 3.

[0033] The building structure crack measuring device provided in the embodiment changes the surface contact between the clamping jaw 1 and the inner wall of the building crack into linear contact through the conical clamping portion 9, further reduces the error caused by the sand and stone particles on the inner wall of the building crack on the measurement, and further improves the measurement accuracy.

[0034] The use process of the building structure crack measuring device is as follows: the position of the bubble on the bubble level 13 is referred to, the fixed plate 10 is adjusted to be in a horizontal state, the fixed plate 10 is fixedly installed on the wall surface on one side of the building crack to be measured, the position of the sliding rail 12 in the rail groove 11 is adjusted, the conical clamping portion 9 on the corresponding clamping jaw 1 is in close contact with the inner wall of the building crack, the sliding rail 12 is fixed in the rail groove 11 through bolts, under the action of the elastic supporting piece 8 and the scissor connecting piece, the two clamping jaws 1 are in parallel and far away from each other, until the other clamping jaw 1 is in close contact with the other inner wall of the building crack, the vernier seat 3 moves relative to the scale 2, the reading vertical plane 7 on the vernier seat 3 coincides with the scale line on the scale 2, and the actual width of the building crack is obtained.

[0035] In the utility model, unless another definite provision and limitation, the terms "installation", "connection", "link", "fix" and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or can communicate with each other;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction relationship of two elements inside two elements, unless another definite limitation. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model in specific circumstances.

[0036] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A building structure crack measuring device characterized by, The utility model relates to a vernier caliper, including two mutually parallelly arranged clamping jaws (1), a scissors connecting piece, a scale (2) and a vernier seat (3), two clamping jaws (1) are connected through the scissors connecting piece, the scissors connecting piece includes two middle interlocking connecting rods (4), one end of two connecting rods (4) is hinged with two clamping jaws (1) respectively, and the other end of two connecting rods (4) is rotatably installed with slide post (5), the clamping jaw (1) is equipped with the sliding slot (6) of the engagement with slide post (5), slide post (5) is slidably installed in sliding slot (6), the scale (2) is fixedly installed at the end of one clamping jaw (1), the vernier seat (3) is fixedly installed at the end of another clamping jaw (1), the vernier seat (3) is equipped with the through -going orifice of allowing scale (2) to pass, scale (2) passes through from the through -going orifice, the vernier seat (3) is equipped with the reading vertical plane (7) perpendicular to scale (2), two clamping jaws (1) are installed with elastic brace (8), and two clamping jaws (1) are elastically connected through elastic brace (8).

2. The apparatus for measuring cracks in building structures according to claim 1, wherein Two clamping jaws (1) are equipped with the taper type card portion (9) on the contact side with the inner wall of building structure crack, and the taper angle edge extension line of one taper type card portion (9) passes the zero scale line of scale (2), and the taper angle edge extension line of another taper type card portion (9) passes the reading vertical plane (7) on the vernier seat (3).

3. The apparatus for measuring cracks in building structures according to claim 1 or 2, characterized by, Still include fixed plate (10), and one set of clamping jaws (1) fixedly connected with scale (2) are installed at fixed plate (10).

4. The apparatus for measuring cracks in building structures according to claim 3, wherein The fixed plate (10) is equipped with rail slot (11), and one set of clamping jaws (1) fixedly connected with scale (2) are equipped with slide rail (12), the slide rail (12) is slidably installed in rail slot (11), and the slide rail (12) is fixedly connected with rail slot (11) through bolt.

5. The apparatus for measuring cracks in building structures according to claim 3, wherein The fixed plate (10) is installed with bubble level (13).

6. The apparatus for measuring cracks in building structures according to claim 3, wherein The fixed plate (10) is equipped with transparent card slot (14).

7. The apparatus for measuring cracks in building structures according to claim 2, wherein The vernier seat (3) is equipped with notch portion (15) near the reading vertical plane (7).

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