CN218646197U

CN218646197U - Bridge, subway and tunnel crack displacement detection device for fiber grating

Info

Publication number: CN218646197U
Application number: CN202223165367.8U
Authority: CN
Inventors: 韩吉峰; 李峰; 韩龙宇
Original assignee: Jinan Dh Photoelectric Technology Co ltd
Current assignee: Jinan Dh Photoelectric Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-17
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a bridge, subway, tunnel crack displacement detection device for fiber grating relates to crack displacement detection technical field, including handle bar and cover shell, the top fixed mounting of handle bar has the telescopic link, the flexible fixed mounting in top of telescopic link has the quarter butt, the top fixed mounting of quarter butt has the hexagonal column, the slot has been seted up at the top of cover shell. The utility model discloses a fill in proper amount plasticine piece at the top of cover shell, then take off the cover shell and insert in the mud die cavity, make the plasticine piece by extrusion, then install the cover shell on the hexagonal column again, adjust the length of telescopic link according to the user demand, and rotatory fixed length, then handheld handle bar makes the plasticine piece support in crack department, the extrusion makes printing crack pattern on the plasticine piece slightly hard, take out the cover shell, can obtain fissured with the size space mode, need not to measure higher position with the help of external platform.

Description

Bridge, subway and tunnel crack displacement detection device for fiber grating

Technical Field

The utility model relates to a crack displacement detects technical field, in particular to bridge, subway, tunnel crack displacement detection device for fiber grating.

Background

Optical fibers are short for optical fibers, and are fibers made of glass or plastic that can be used as a light conducting means. The tunnel is an engineering building buried in the stratum, and the utilization of underground space is realized; the tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel, a military tunnel and the like. The fiber grating tunnel is a laying tunnel for fiber cables, crack gaps between tunnel walls need to be regularly detected when the fiber grating tunnel passes through a bridge, a subway and a tunnel, and displacement is avoided. The existing detection device needs to be manually held when in detection, needs to be externally connected with a support frame tool when in high-altitude detection, and is inconvenient in detection operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a bridge, subway, tunnel crack displacement detection device for fiber grating can effectively solve the problem in the background art.

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

the utility model provides a bridge, subway, tunnel crack displacement detection device for fiber grating, includes handle bar and cover shell, the top fixed mounting of handle bar has the telescopic link, the flexible fixed mounting in top of telescopic link has the quarter butt, the top fixed mounting of quarter butt has the hexagonal column, the slot has been seted up at the top of cover shell, install the plasticine piece in the slot, the bottom surface mounting of telescopic link has measuring mechanism.

Preferably, the measuring mechanism includes sliding ring, solid fixed ring, threaded rod and measurement piece, the fixed solid fixed ring that has cup jointed in the surface bottom of telescopic link, the sliding ring has been cup jointed in the surface slip of telescopic link, the same equal fixed mounting in end of sliding ring and solid fixed ring has the measurement piece, the surface bottom of telescopic link is equipped with the scale mark.

Preferably, the top surface of the fixed ring is rotatably provided with a threaded rod, and the top end thread of the threaded rod penetrates through the sliding ring and is fixedly provided with a knob.

Preferably, a plurality of contact pins are fixedly installed in the top slot of the casing, and are distributed in a circular and equidistant mode.

Preferably, the bottom end of the handle rod is provided with a mud mold cavity, and the mud mold cavity is matched with the top end of the casing.

Preferably, the bottom of cover shell is equipped with hexagonal groove, hexagonal column and hexagonal groove adaptation, the internal surface in hexagonal groove is equipped with the magnetic path, hexagonal column is iron hexagonal column.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. proper amount plasticine piece is filled in through the top at the cover shell, then take off the cover shell and insert in the mud die cavity, make the plasticine piece by extrusion, then install the cover shell on hexagonal post again, adjust the length of telescopic link according to the user demand, and rotatory fixed length, then handheld handle bar makes the plasticine piece support in crack department, extrude hard slightly and make printing crack pattern on the plasticine piece, drawing back the cover shell, can obtain cracked unidimensional space mode, need not to measure higher position with the help of external platform.

2. Take off through shaping plasticine piece and cover shell, put between the measuring block, rotatory adjust knob makes the measuring block clip shaping plasticine piece both sides gently, and the width of reading out is the crack width, and the contrast historical data can judge whether there is the crack displacement, easy operation, and whole device is small, can accomodate foldingly, easily deposits.

Drawings

Fig. 1 is a schematic view of the overall structure of the displacement detection device for cracks of bridges, subways and tunnels for fiber bragg gratings;

FIG. 2 is a schematic view of the front view structure of the fiber grating bridge, subway and tunnel crack displacement detection device of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the handle bar of the crack displacement detecting device for fiber bragg gratings in bridges, subways and tunnels of the present invention;

fig. 4 is a schematic view of a partial enlarged structure at a position a in fig. 2 of the displacement detection device for cracks of bridges, subways and tunnels for fiber bragg gratings according to the present invention;

FIG. 5 is a schematic view of an assembly structure of a hexagonal column and a casing of the fiber grating bridge, subway and tunnel crack displacement detection device of the present invention;

fig. 6 is the utility model relates to a fiber grating is with spatial structure schematic diagram of bridge, subway, tunnel crack displacement detection device cover shell.

In the figure: 1. a handle bar; 2. a measuring mechanism; 21. a slip ring; 22. a fixing ring; 23. a threaded rod; 24. a measuring block; 25. a knob; 26. scale marks; 3. a telescopic rod; 4. a short bar; 5. a housing; 6. a plasticine block; 7. a mud mould groove; 8. a hexagonal column; 9. a hexagonal groove; 10. and (6) inserting pins.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1-6, a displacement detection device for cracks of bridges, subways and tunnels for fiber bragg gratings comprises a handle rod 1 and a casing 5, wherein a telescopic rod 3 is fixedly mounted at the top end of the handle rod 1, a short rod 4 is fixedly mounted at the top end of the telescopic rod 3, a hexagonal column 8 is fixedly mounted at the top end of the short rod 4, an insertion slot is formed in the top of the casing 5, a plasticine block 6 is mounted in the insertion slot, and a measuring mechanism 2 is mounted on the outer surface of the bottom of the telescopic rod 3.

In this embodiment, the measuring mechanism 2 includes a slip ring 21, a fixing ring 22, a threaded rod 23 and a measuring block 24, the fixing ring 22 is fixedly sleeved at the bottom of the outer surface of the telescopic rod 3, the slip ring 21 is slidably sleeved on the outer surface of the telescopic rod 3, the measuring block 24 is fixedly mounted at the same end of the slip ring 21 and the fixing ring 22, and the bottom of the outer surface of the telescopic rod 3 is provided with scale marks 26; the top surface of the fixed ring 22 is rotatably provided with a threaded rod 23, the top end of the threaded rod 23 penetrates through the slide ring 21 and is fixedly provided with a knob 25.

Specifically, take off shaping plasticine piece 6 and cover 5, put between measuring block 24, rotatory adjust knob 25 makes measuring block 24 clip shaping plasticine piece 6 both sides gently, and the width of reading out is the crack width, and the contrast historical data can judge whether there is the crack displacement.

In this embodiment, a plurality of pins 10 are fixedly installed in the top slot of the casing 5, and the plurality of pins 10 are distributed in a circular shape and at equal intervals; the bottom end of the handle rod 1 is provided with a mud mold groove 7, and the mud mold groove 7 is matched with the top end of the casing 5; the bottom of cover shell 5 is equipped with hexagonal groove 9, hexagonal column 8 and hexagonal groove 9 adaptation, and the internal surface of hexagonal groove 9 is equipped with the magnetic path, and hexagonal column 8 is iron hexagonal column.

Specifically, when using, need wait to detect the crack when being located the top, fill in proper amount plasticine piece 6 at the top of cover shell 5, then take off cover shell 5 and insert in mud die cavity 7, make plasticine piece 6 by extrusion, then install cover shell 5 on hexagonal column 8 again, adjust the length of telescopic link 3 according to the user demand, and rotatory fixed length, then handheld handle pole 1 makes plasticine piece 6 support in crack department, press slightly hard making and print the crack pattern on the plasticine piece 6, taking back cover shell 5, can obtain fissured unidimensional space mode.

The working principle is as follows: the utility model provides a telescopic link 3 comprises many the different sleeves of size, telescopic link 3 is lengthening the back, but rotary threaded connection between two adjacent sleeves, for prior art, when using, need wait to detect the crack be located the top, fill in proper amount plasticine piece 6 at the top of cover shell 5, then take off cover shell 5 and insert in mud die cavity 7, make plasticine piece 6 by extrusion, then install cover shell 5 on hexagonal post 8 again, adjust the length of telescopic link 3 according to the user demand, and rotatory fixed length, then it makes plasticine piece 6 support in crack department to hand lever 1, slightly hard extrusion makes and prints the crack pattern on plasticine piece 6, take out cover shell 5, can obtain cracked same size space mode shape, then take off shaping plasticine piece 6 and cover shell 5, put between measuring block 24, rotatory adjust knob 25 makes measuring block 24 carry forming plasticine piece 6 both sides gently, read out the width as the crack displacement, contrast historical data can judge whether there is the crack displacement, the operation is simple, whole device is small in size, can accomodate foldingly, deposit easily.

It is well within the skill of those in the art to implement, without undue experimentation, the present invention does not relate to software and process improvements, as related to the circuit and electronic components and control modules.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bridge, subway, tunnel crack displacement detection device for fiber grating, includes handle bar (1) and cover shell (5), its characterized in that: the utility model discloses a handle bar, including handle bar (1), telescopic link (3) are installed to the top fixed mounting of handle bar (1), the flexible fixed mounting in top of telescopic link (3) has quarter butt (4), the top fixed mounting of quarter butt (4) has hexagonal column (8), the slot has been seted up at the top of cover shell (5), install plasticine piece (6) in the slot, the bottom surface mounting of telescopic link (3) has measuring mechanism (2).

2. The device for detecting the crack displacement of the bridge, the subway or the tunnel for the fiber bragg grating according to claim 1, wherein: measuring mechanism (2) include sliding ring (21), solid fixed ring (22), threaded rod (23) and measure piece (24), the fixed cover in surface bottom of telescopic link (3) has connect solid fixed ring (22), the surface slip of telescopic link (3) has cup jointed sliding ring (21), sliding ring (21) and solid fixed ring (22) have with the equal fixed mounting in end measure piece (24), the surface bottom of telescopic link (3) is equipped with scale mark (26).

3. The crack displacement detection device for the bridge, the subway or the tunnel for the fiber bragg grating as claimed in claim 2, wherein: the top surface of the fixed ring (22) is rotatably provided with a threaded rod (23), and the top end thread of the threaded rod (23) penetrates through the sliding ring (21) and is fixedly provided with a knob (25).

4. The device for detecting the crack displacement of the bridge, the subway or the tunnel for the fiber bragg grating according to claim 1, wherein: a plurality of contact pins (10) are fixedly installed in the top slot of the casing (5), and the plurality of contact pins (10) are distributed in a circular and equidistant mode.

5. The crack displacement detection device for the bridge, the subway or the tunnel for the fiber bragg grating as claimed in claim 1, wherein: mud die cavity (7) have been seted up to the bottom of handle pole (1), mud die cavity (7) and cover shell (5) top adaptation.

6. The device for detecting the crack displacement of the bridge, the subway or the tunnel for the fiber bragg grating according to claim 1, wherein: the hexagonal socket is characterized in that a hexagonal groove (9) is formed in the bottom end of the casing (5), the hexagonal columns (8) are matched with the hexagonal groove (9), magnetic blocks are arranged on the inner surfaces of the hexagonal groove (9), and the hexagonal columns (8) are iron hexagonal columns.