CN210036597U

CN210036597U - Protective device of crack width gauge

Info

Publication number: CN210036597U
Application number: CN201920928890.0U
Authority: CN
Inventors: 成伟
Original assignee: Jiangsu Jiuxin Engineering Testing Co Ltd
Current assignee: Jiangsu Jiuxin Engineering Testing Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-02-07
Anticipated expiration: 2029-06-19

Abstract

The utility model relates to a protector of crack width gage uses in building safety monitoring equipment field, and its technical scheme main points are: the measuring probe comprises a measuring probe body, wherein an intermediate ring is arranged on the measuring probe body, a driving ring is rotatably connected onto the intermediate ring, a plurality of arc plates used for covering the detection end of the measuring probe body are hinged onto the driving ring, arc guide rods are arranged on the side wall of each arc plate, the guide rods and the rotating axes of the corresponding arc plates are coaxially distributed, a base block for each guide rod to penetrate through is arranged on the driving ring, an adjusting screw with one end abutting against the guide rod is connected onto the base block in a threaded manner, one end of each arc plate extending out of the measuring probe body is connected with an end cover, an annular groove for each arc plate to be inserted into is formed in the; the advantages are that: the condition that the measuring probe is scraped by an external object to cause the lens of the measuring probe to be worn is reduced.

Description

Protective device of crack width gauge

Technical Field

The utility model belongs to the technical field of the building safety monitoring equipment and specifically relates to a protector of crack width gage is related to.

Background

With the increase of high-rise buildings and the increase of loads, under the combined action of foundation and superstructure, the buildings will be unevenly settled, resulting in the inclination or cracks of the buildings, and endangering the safety of the buildings, so the stability and reliability of the buildings become the focus of attention. The crack width measuring instrument is used for detecting the crack width and the surface microscopic defects in a concrete structure, when the crack width measuring instrument is used, a display screen and a measuring probe are connected through a cable, a power switch is turned on, two legs of the measuring probe are placed on a crack, an amplified crack image can be seen on the display screen, the measuring probe is slightly rotated to enable the crack image to be perpendicular to a graduated scale, and the crack width value is read according to the length of a graduated line occupied by the crack image.

The measuring probe of the existing crack width gauge is usually directly exposed outside, and is easily scratched with an external object in the process of being stored or moved at ordinary times, so that the lens at the detecting end of the measuring probe is abraded, and the definition of an acquired image is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a protector of crack width gage, its advantage is: the condition that the measuring probe is scraped by an external object to cause the lens of the measuring probe to be worn is reduced.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a protector of crack width gage, includes measuring probe, the last intermediate ring that is equipped with of measuring probe, it is connected with the drive ring to rotate on the intermediate ring, it has a plurality of arc boards that are used for covering measuring probe's sense terminal, each to articulate on the drive ring all be equipped with curved guide arm on the lateral wall of arc board, the guide arm is with the coaxial distribution of the axis of rotation that corresponds the arc board, be equipped with the basic block that supplies each guide arm to pass on the drive ring, threaded connection has the adjusting screw that one end and guide arm were contradicted on the basic block, each the one end that the measuring probe was extended to the arc board is connected with the end cover, set up on the end cover and supply each arc board male annular, be equipped with the elastic rubber.

By adopting the technical scheme, when the crack width gauge is stored or moved, an operator rotates the arc plates to enable the arc plates to surround an annular sleeve to cover the detection end of the measuring probe, then screws the adjusting screw to tightly abut against the guide rod to fix the arc plates, then inserts the arc plates into the annular groove, and utilizes the abutting force between the elastic rubber pad and the arc plates to enable the end cover and the arc plates to be fixed, so that the detection end of the measuring probe is surrounded by the end cover and each arc plate, the condition that the lens of the measuring probe is abraded by an external object is reduced, and the definition of the image acquired by the measuring probe is ensured; when the surface of the measured object is uneven, an operator can rotate the arc plates, adjust the angle between each arc plate and the axis of the measuring probe, and support the arc plates on the measured object, so that the measuring probe is perpendicular to the crack, the measuring work of the operator is facilitated, and the error caused by the fact that the operator holds the measuring probe by hand is reduced.

The utility model discloses further set up to: the arc plate comprises an adjusting sheet and two supporting plates, wherein one of the supporting plates is hinged with the driving ring, the two supporting plates are provided with clamping grooves for inserting the adjusting sheet, and the two supporting plates are in threaded connection with fixing screws with one ends penetrating into the clamping grooves.

By adopting the technical scheme, the operator moves the supporting plates, adjusts the overall length of the arc plate, screws the fixing screw to tightly abut against the adjusting sheet after the adjustment is finished, so that the arc plate and the adjusting sheet are relatively fixed, and the distance between the two supporting plates can be freely adjusted, so that the adjusting range of the arc plate is increased, and the adaptability of the arc plate to uneven surfaces is improved.

The utility model discloses further set up to: and the guide rod and the adjusting sheet are both provided with scale marks.

By adopting the technical scheme, the scale marks facilitate the adjustment of the angle of the arc plate and the distance between the two supporting plates by an operator.

The utility model discloses further set up to: the measuring probe is connected with a connecting rod through a fastening screw, one end of the connecting rod is provided with a fixing sleeve for a cable to pass through, the fixing sleeve is connected with a limiting column through threads, one end of the limiting column is provided with a knob, the other end of the limiting column penetrates into the fixing sleeve, and the penetrating end of the limiting column is rotatably connected with a pressing plate.

Through adopting above-mentioned technical scheme, during the wiring, the operator passes the cable in fixed cover, twists the knob, makes the clamp plate support the cable tightly on fixed cover inner wall, has reduced the measurement process in, the cable is dragged by external force and leads to its and the condition emergence that measuring probe drops.

The utility model discloses further set up to: one side of the pressing plate, which deviates from the limiting column, is provided with a soft cushion.

Through adopting above-mentioned technical scheme, realized the soft contact of clamp plate with the cable through the cushion, played the guard action to the cable.

The utility model discloses further set up to: the side wall of the measuring probe is provided with a sleeve, and an adjusting rod is connected with the inner thread of the sleeve.

By adopting the technical scheme, when the position of the measured object is higher, an operator connects the adjusting rod with the sleeve thread, and the measuring probe is close to the measured object by utilizing the adjusting rod, thereby facilitating the measuring work of the operator.

The utility model discloses further set up to: the adjusting rod comprises a plurality of mutually spliced supporting rods, and two ends of each supporting rod are respectively provided with a stud and a connecting groove.

Through adopting above-mentioned technical scheme, when the concatenation was adjusted the pole, the operator was simple swift with the double-screw bolt and the connecting groove looks spiro union of two adjacent branches, and the operator also can select the branch of suitable quantity according to the actual height of measurand simultaneously, changes the overall length of adjusting the pole, and the flexibility is high.

The utility model discloses further set up to: and an illuminating lamp is arranged on the supporting rod close to the measuring probe.

Through adopting above-mentioned technical scheme, the light provides sufficient light source for the operator, provides convenience for the operator seeks the position of measurand.

To sum up, the utility model discloses a beneficial technological effect does:

1. the detection end of the measuring probe is surrounded by the combination of the arc plate and the end cover, so that the detection end of the measuring probe is prevented from being scraped with an external object, and the protective effect on a lens of the measuring probe is achieved; meanwhile, the arc plate can also be used as a supporting base of the measuring probe to adapt to the measurement work of the uneven surface of the measured object;

2. the operator can conveniently detect the cracks at different heights through the adjusting rod.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the base block and the guide rod of the present embodiment.

Fig. 3 is a schematic structural diagram of an arc plate according to the present embodiment.

Fig. 4 is a schematic structural diagram of the fixing sleeve embodied in the embodiment.

Fig. 5 is a schematic structural diagram for embodying the adjustment lever in the present embodiment.

Fig. 6 is a schematic structural diagram for embodying the stud and the connecting groove in the present embodiment.

In the figure, 1, a measuring probe; 11. an intermediate ring; 12. a drive ring; 13. an arc plate; 131. a regulating sheet; 132. a support plate; 133. a card slot; 134. a set screw; 14. a guide bar; 15. a base block; 151. an adjusting screw; 16. an end cap; 161. a ring groove; 17. an elastic rubber pad; 18. scale lines; 2. a connecting rod; 21. fastening screws; 22. fixing a sleeve; 23. a limiting column; 231. a knob; 232. pressing a plate; 24. a soft cushion; 3. adjusting a rod; 31. a strut; 311. a stud; 312. connecting grooves; 32. a sleeve; 33. an illuminating lamp.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a protective device of a crack width measuring instrument is shown in figures 1 and 2 and comprises a measuring probe 1, wherein an intermediate ring 11 is arranged on the measuring probe 1, a driving ring 12 is coaxially and rotatably connected to the intermediate ring 11, a plurality of arc plates 13 are hinged to the side wall of the driving ring 12 and are distributed at equal intervals along the circumferential direction of the driving ring, and when the arc plates 13 are mutually spliced, one end, far away from the driving ring 12, of each arc plate 13 extends out of the detection end of the measuring probe 1 so as to form an annular barrel, and the detection end of the measuring probe 1 is covered; all be equipped with curved guide arm 14 on the lateral wall of each arc board 13, guide arm 14 and the coaxial distribution of the axis of rotation that corresponds arc board 13, drive ring 12 is equipped with a plurality of base blocks 15, base block 15 and arc board 13 one-to-one, the one end that arc board 13 was kept away from to guide arm 14 passes corresponding base block 15, threaded connection has the adjusting screw 151 that one end and guide arm 14 contradict on the base block 15, the one end of extending measuring probe 1 sense terminal is kept away from to each arc board 13 is connected with end cover 16, set up on the end cover 16 and supply each arc board 13 male annular 161 (like figure 3), be equipped with elastic rubber pad 17 on the annular 161 cell wall (like figure 3).

As shown in fig. 2, when the width measuring instrument needs to be stored or moved, an operator rotates each arc plate 13 to wrap the measuring probe 1, then screws an adjusting screw 151 to tightly abut against a guide rod 14 to limit the movement of the guide rod 14, so that each arc plate 13 keeps a cylindrical shape surrounded by the arc plates 13, the operator inserts the end cover 16 into the arc plate 13, and presses the elastic rubber pad 17 (as shown in fig. 3) by the arc plates 13 to elastically deform the elastic rubber pad 17, so that the end cover 16 is fixed with the arc plates 13, and the cylindrical opening surrounded by the arc plates 13 is sealed, at this time, the detection end of the measuring probe 1 is protected at the inner sides of the arc plates 13 and the end cover 16, thereby reducing the occurrence of the situation that the lens of the measuring probe 1 is worn due to the scratch of the measuring probe 1 by an external object, and ensuring the imaging definition of the measuring probe 1.

As shown in fig. 3, the arc plate 13 includes an adjusting plate 131 and two supporting plates 132, one of the supporting plates 132 is hinged to the driving ring 12, one end of the guide rod 14 is also connected to the supporting plate 132, the two supporting plates 132 are respectively provided with a slot 133 at an opposite side for the adjusting plate 131 to be inserted into, the two supporting plates 132 are respectively connected with a fixing screw 134 in a threaded manner, one end of the fixing screw 134 penetrates into the slot 133 and abuts against the adjusting plate 131, and the adjusting plate 131 and the guide rod 14 are respectively provided with a scale mark 18.

As shown in fig. 2 and fig. 3, in the actual detection, if the surface of the measured object is uneven, the operator can rotate the arc plate 13 according to the scale mark 18, adjust the included angle between the arc plate 13 and the axis of the measuring probe 1 and the distance between the two supporting plates 132, rely on the supporting plates 132 to collide with the measured object, so that the measuring probe 1 is perpendicular to the crack, after the adjustment is finished, the adjusting screw 151 and the fixing screw 134 are screwed to respectively abut against the guide rod 14 and the adjusting plate 131, fix the positions of the arc plate 13 and the supporting plates 132, the measuring probe 1 is not required to be held by the hand of the operator for detection, which is convenient and fast, the practicability and the application range of the device are increased, and meanwhile, the possibility that the operator holds the measuring probe 1 by the hand and.

As shown in fig. 4, be connected with connecting rod 2 through fastening screw 21 is perpendicular on measuring probe 1, the one end that measuring probe 1 was kept away from to connecting rod 2 is equipped with the fixed cover 22 that supplies the width gauge connecting cable to pass, fixed cover 22 internal diameter is greater than the cable external diameter, threaded connection has spacing post 23 on the fixed cover 22, the one end of spacing post 23 is equipped with knob 231, the other end is worn into fixed cover 22 in, and the one end of wearing into rotates and is connected with clamp plate 232, clamp plate 232 is the arc and its one side that deviates from spacing post 23 is equipped with cushion 24, the operator twists knob 231, drive spacing post 23 and rotate, make clamp plate 232 compress tightly the cable on fixed cover 22 inner wall, reduced the cable because pull and the condition emergence that drops with measuring probe 1 in the measurement process.

As shown in fig. 5 and 6, a sleeve 32 is vertically arranged on the side wall of the measuring probe 1, an adjusting rod 3 is connected to the sleeve 32 through an internal thread, the adjusting rod 3 includes a plurality of support rods 31 which are spliced with each other, and a stud 311 and a connecting groove 312 are respectively arranged at two ends of each support rod 31; when the position of the measured object is higher, the operator fixes the arc plate 13 first, the detection end of the measuring probe 1 is exposed, then the support rods 31 with proper quantity are selected for splicing, namely, the stud 311 of two adjacent support rods 31 is in threaded connection with the connecting groove 312, then the stud 311 of the top support rod 31 is in threaded connection with the sleeve 32, the adjusting rod 3 is lifted, the position of the measuring probe 1 is directly lifted to the measured object, the device is convenient and fast, the application range of the device is increased, the device can be detached independently when the device is not needed, and the flexibility is high.

As shown in FIG. 5, the bar 31 near the side face probe is also provided with an illuminating lamp 33, which is positioned to provide a sufficient light source for the operator to determine the position of the crack.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a protector of crack width gage, includes measuring probe (1), its characterized in that: an intermediate ring (11) is arranged on the measuring probe (1), a driving ring (12) is rotatably connected on the intermediate ring (11), a plurality of arc plates (13) used for covering the detection end of the measuring probe (1) are hinged on the driving ring (12), arc guide rods (14) are arranged on the side wall of each arc plate (13), the guide rods (14) are coaxially distributed with the rotating axes of the corresponding arc plates (13), a base block (15) for each guide rod (14) to pass through is arranged on the driving ring (12), an adjusting screw (151) with one end abutting against the guide rod (14) is connected to the base block (15) in a threaded manner, an end cover (16) is connected to one end of each arc plate (13) extending out of the measuring probe (1), the end cover (16) is provided with annular grooves (161) for inserting the arc plates (13), and elastic rubber pads (17) are arranged on the groove walls of the annular grooves (161).

2. The crack width gauge protection device of claim 1, wherein: the arc plate (13) comprises adjusting sheets (131) and two supporting plates (132), wherein one of the supporting plates (132) is hinged to the driving ring (12), clamping grooves (133) for inserting the adjusting sheets (131) are formed in the two supporting plates (132), and fixing screws (134) with one ends penetrating into the clamping grooves (133) are in threaded connection with the two supporting plates (132).

3. The crack width gauge protection device of claim 2, wherein: and the guide rod (14) and the adjusting sheet (131) are provided with scale marks (18).

4. The crack width gauge protection device of claim 1, wherein: be connected with connecting rod (2) through fastening screw (21) on measuring probe (1), the one end of connecting rod (2) is equipped with fixed cover (22) that the power supply cable passed, threaded connection has spacing post (23) on fixed cover (22), the one end of spacing post (23) is equipped with knob (231), and in the fixed cover (22) was worn into to the other end, and the one end of wearing into rotated and is connected with clamp plate (232).

5. The crack width gauge protection device of claim 4, wherein: one side of the pressure plate (232) departing from the limit column (23) is provided with a soft cushion (24).

6. The crack width gauge protection device of claim 1, wherein: the side wall of the measuring probe (1) is provided with a sleeve (32), and the sleeve (32) is connected with an adjusting rod (3) through internal threads.

7. The crack width gauge protection device of claim 6, wherein: the adjusting rod (3) comprises a plurality of mutually spliced supporting rods (31), and two ends of each supporting rod (31) are respectively provided with a stud (311) and a connecting groove (312).

8. The crack width gauge protection device of claim 7, wherein: an illuminating lamp (33) is arranged on the support rod (31) close to the measuring probe (1).