CN216283274U

CN216283274U - Optical fiber top plate detector easy to mount and dismount

Info

Publication number: CN216283274U
Application number: CN202123016126.2U
Authority: CN
Inventors: 胡全仁
Original assignee: Good Middling More Technology Beijing Co ltd
Current assignee: Good Middling More Technology Beijing Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-12
Anticipated expiration: 2031-11-30

Abstract

An optical fiber top plate detector easy to assemble and disassemble comprises a detector body, a turnover pawl and a dial sleeve, the upper end of the detector body is provided with a vertical extension tube, a plurality of turnover pawls are arranged around the outer side of the lower end of the extension tube close to the detector body, the turning pawl is rotationally connected to the pipe wall of the extension pipe, a turning sleeve which is in threaded connection with the extension pipe is arranged below the turning pawl, the upper end of the toggle sleeve is inserted into the inner side of the lower end of the toggle pawl, the toggle sleeve moves upwards along the extension pipe when rotating, the inner side of the lower end of each toggle pawl is connected with a tightening rope, the tightening rope penetrates into the extension pipe, the lower end of the tightening rope extends out of the lower portion of the detector body, the tightening rope is pulled downwards, the pawl is turned over, the inner wall of the drilled hole can be separated, and the detector can be detached from the drilled hole for maintenance.

Description

Optical fiber top plate detector easy to mount and dismount

Technical Field

The utility model relates to the technical field of coal mine safety detection, in particular to an optical fiber roof detector easy to mount and dismount.

Background

The optical fiber top plate detector is a novel optical fiber displacement sensor, when the top plate is displaced, the wavelength of the optical fiber grating in the sensor is changed along with the displacement, the separation layer amount of the top plate can be obtained by demodulating and analyzing the change of the grating wavelength, and the problems of dust prevention, water prevention, electromagnetic interference resistance and the like on site are solved. The optical fiber roof separation layer sensor can realize on-site passive display, can display the current roof separation layer amount on line in real time through the monitoring host, is corrosion-resistant, long in transmission distance, high in precision, stable and reliable for a long time, passive and visible, and is not easy to be interfered.

The utility model provides a fiber-optic roof detector is that the fluke that stretches out of head is deepened anchor in the drilling of tunnel roof in the use, the body is also fixed through the extension pipe that the upper end inserted in the roof drilling, fiber-optic roof detector on the existing market pierces the drilling inner wall through the elasticity pawl that stretches out in the extension pipe and fixes, only considers disposable fixed, if later stage needs maintenance, dismantles the difficulty that can be very, dismantles the in-process and may destroy fiber-optic roof detector even.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the optical fiber top plate detector easy to install and disassemble, the extension pipe of the detector is provided with a plurality of turnover pawls capable of being turned over, the turnover pawls can be outwards opened and clamped into the inner wall of a drilled hole to fix the optical fiber top plate detector, the detector is simple and quick, the inner side of each turnover pawl is connected with a tightening rope, and the tightening ropes are pulled to inwards tighten the turnover pawls, so that the fixing of the extension pipe and the inner wall of the drilled hole is released, and the detector is disassembled and maintained.

The technical scheme of the utility model is as follows:

an optical fiber top plate detector easy to mount and dismount comprises a detector body, a turning pawl and a turning sleeve, wherein a vertical extension pipe is arranged at the upper end of the detector body, a plurality of turning pawls are arranged around the outer side, close to the detector body, of the lower end of the extension pipe, the turning pawl is rotatably connected to the pipe wall of the extension pipe, the turning sleeve which is in threaded connection with the extension pipe is arranged below the turning pawl, the upper end of the turning sleeve is inserted into the inner side of the lower end of the turning pawl, the turning sleeve moves upwards along the extension pipe when rotating, the lower end of the turning pawl is pulled outwards by the upper end of the turning sleeve and is clamped into the inner wall of a drill hole for anchoring, a tightening rope is connected to the inner side of the lower end of each turning pawl, penetrates into the extension pipe, the lower end of the turning pawl extends out of the lower part of the detector body, and when the detector is damaged and needs to be maintained, the poking sleeve rotates in the opposite direction, moves downwards along the extension pipe, then pulls the tightening rope downwards, and the overturning pawl can be separated from the inner wall of the drilled hole, so that the detector can be detached from the drilled hole for replacement or maintenance.

As above-mentioned optic fibre roof detector of easy installation dismantlement, dial the lower extreme of changeing the cover and be provided with the shape and include hexagonal torsion portion, use traditional hexagonal spanner can rotate dial the sleeve, very swift convenient, dial telescopic upper end and be provided with and dial the portion of changeing, the inboard shape of upset pawl lower extreme cooperatees with the outside shape of dialling the portion of changeing.

Furthermore, the shape of the poking and rotating part comprises a frustum shape, and the diameter of the outer ring is gradually reduced from bottom to top.

Furthermore, the diameter of the middle part of the dial part and the torsion part of the dial sleeve is not larger than that of the extension pipe.

As above an easily install optic fibre roof detector of dismantling, extension pipe from the bottom up includes screw thread portion, pawl installation department and extension in proper order, the outside surface of screw thread portion is provided with the screw thread, dial the sleeve and pass through threaded connection on the screw thread portion of extension pipe, center on the pawl installation department is provided with several pawl hole, the upset pawl sets up in the pawl hole, the extension shape includes the pipe form, and outside diameter is not less than the maximum diameter of screw thread portion and pawl installation department, makes screw thread portion and pawl installation department when toward the drilling in-plug, can not blockked the card and pause.

Further, the shape of the pawl hole comprises a long strip.

Further, it centers on the pawl installation department is provided with the connection annular, connection annular perpendicular to pawl hole length direction arranges, the upset pawl is provided with the connecting hole that runs through about connecting the relative position of annular, the upset pawl is connected with the rotation of pawl installation department through passing the steel wire in connection annular and connecting hole.

According to the optical fiber top plate detector easy to install and detach, the head of the tightening rope is divided into a plurality of strands to be connected with the inner side of the lower end of each turnover pawl respectively, the part, extending out of the detector body, of the tail of the tightening rope is connected with the pull ring, each turnover pawl can be turned inwards to be tightened up by pulling the pull ring, fixing of the turnover pawl to the inner wall of a drilled hole is removed, and the optical fiber top plate detector is convenient and fast.

Compared with the prior art, the utility model has the advantages that:

according to the optical fiber top plate detector easy to mount and dismount, the problem that a traditional optical fiber top plate detector cannot or is not easy to dismount and maintain is solved, the turnover pawl can be clamped after the turnover pawl is pushed outwards by the turnover sleeve, and the situation that the detector is fixed and fails to fall off the top plate due to rebound of the turnover pawl is prevented. When the detector is removed from installation, the dial sleeve is rotated downwards to the bottom, and then the rope is pulled to be tightened, so that the detector is simple and quick to use, the detector body is convenient to maintain, and the use cost of the detector is reduced.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.

In the drawings:

fig. 1 is a schematic structural view of an unlocked state of a detector in embodiment 1;

fig. 2 is a schematic view of an internal structure of the detector in an unlocked state in embodiment 1;

FIG. 3 is a schematic view showing a locked state of the detector in embodiment 1;

FIG. 4 is a schematic view showing the internal structure of the detector in the locked state in embodiment 1;

FIG. 5 is a schematic view showing the structure of an extension pipe in example 1;

FIG. 6 is a schematic view of a dial sleeve according to embodiment 1;

FIG. 7 is a top view of the dial sleeve according to embodiment 1;

FIG. 8 is a partial schematic view of a locked state of an extension pipe structure in accordance with example 1;

the components represented by the reference numerals in the figures are:

1. the detector comprises a detector body, 11, an extension pipe, 12, a threaded part, 13, a pawl mounting part, 131, a pawl hole, 132, a connecting ring groove, 14, an extension part, 2, a turnover pawl, 3, a turning sleeve, 31, a torsion part, 32, a turning part, 4, a tightening rope, 41, a pull ring, 5, a drilling hole, 6 and rock strata.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

The directions "front and back", "left and right", etc. mentioned in the present invention are only used to express the relative positional relationship, and are not restricted by any specific directional references in practical application.

Example 1

Referring to fig. 1-8, an optical fiber roof detector easy to mount and dismount includes a detector body 1, a turning pawl 2 and a dial sleeve 3, wherein a vertical extension pipe 11 is disposed at the upper end of the detector body 1, a plurality of steel cables extend out of the extension pipe 11, the head of each steel cable is connected with a fluke, the fluke is anchored in the inner walls of different rock stratums 6 of a roof borehole 5, when the different rock stratums 6 move up and down relatively, the steel cables connected with the flukes are driven to move, so as to trigger a cantilever beam connected with an optical fiber in the detector body 1 of the optical fiber roof, the wavelength of the optical fiber in the optical fiber changes, a demodulator connected outside a mine is connected, the wavelength change is demodulated and analyzed, so that an outsider can constantly monitor the change condition of a roof of a roadway, 4 turning pawls 2 are disposed around the outer side of the lower end of the extension pipe 11 close to the detector body 1 in this embodiment, the interval between the adjacent turnover pawls 2 is 90 degrees, the turnover pawls 2 are rotatably connected to the pipe wall of an extension pipe 11, a turning sleeve 3 which is in threaded connection with the extension pipe 11 is arranged below the turnover pawls 2, the upper end of the turning sleeve 3 is inserted into the inner side of the lower end of the turnover pawls 2, the turning sleeve 3 moves upwards along the extension pipe 11 when rotating, the lower end of the turnover pawl 2 is pulled outwards by the upper end of the turning sleeve 3 and is clamped into the inner wall of a drill hole 5 for anchoring, the inner side of the lower end of each turnover pawl 2 is connected with a tightening rope 4, the tightening rope 4 penetrates into the extension pipe 11, the lower end of the tightening rope extends out of the lower part of the detector body 1, when the detector is damaged and needs to be maintained, the turning sleeve 3 rotates in the opposite direction, moves downwards along the extension pipe 11 and then pulls the tightening rope 4 downwards, and the turnover pawls 2 can be separated from the inner wall of the drill hole 5, allowing the sonde to be removed from the borehole 5 for replacement or repair.

Referring to fig. 6 and 7, the lower end of the rotating sleeve is provided with a hexagonal twisting portion 31, the rotating sleeve 3 can be rotated by using a conventional hexagonal wrench, the operation is very quick and convenient, the upper end of the rotating sleeve 3 is provided with a rotating portion 32, and the shape of the inner side of the lower end of the turning pawl 2 is matched with the shape of the outer side of the rotating portion 32.

Further, the dial-rotating part 32 is in a frustum shape, and the diameter of the outer ring is gradually reduced from bottom to top. The inclination angle of the frustum of the dial-up portion 32 is 20 degrees.

Further, when the detector is fixed on a roadway top plate, the dial sleeve 3 is rotated, the frustum-shaped head of the dial sleeve 3 is inserted into the inner side of the lower end of the turning pawl 2, and the lower end of the turning pawl 2 can be outwards turned and inserted into the inner wall of the drill hole 5

Further, the diameter of the middle part of the dial part 32 and the torsion part 31 of the dial sleeve 3 is not larger than that of the extension tube 11.

Referring to fig. 5, extension pipe 11 includes screw thread portion 12, pawl installation department 13 and extension 14 from the bottom up in proper order, the outside surface of screw thread portion 12 is provided with the screw thread, dial sleeve 3 through threaded connection on extension pipe 11's screw thread portion 12, around pawl installation department 13 is provided with 4 pawl holes 131, upset pawl 2 sets up in pawl hole 131, extension 14 shape is the pipe form, and outside diameter is not less than the maximum diameter of screw thread portion 12 and pawl installation department 13, makes screw thread portion 12 and pawl installation department 13 when filling in toward drilling 5, can not blockked the card and pause.

Further, the pawl hole 131 is formed in a long bar shape, and the length thereof is smaller than that of the turnover pawl 2.

Further, it is around pawl installation department 13 is provided with connection annular groove 132, connection annular groove 132 is perpendicular to pawl hole 131 length direction and arranges, upset pawl 2 is provided with the connecting hole that runs through about connecting annular groove 132 relative position, upset pawl 2 is connected with the rotation of pawl installation department 13 through passing the steel wire in connecting annular groove 132 and connecting hole.

Further, when upwards rotating dial the sleeve 3, the lower extreme of upset pawl 2 is dialled the outside periodic upset of portion 32 by dial sleeve 3, and the upper end of upset pawl 2 also can inwards overturn simultaneously and enter into pawl hole 131, and pawl hole 131 sets up the upper end that makes upset pawl 2 and can have the space upset, further prevents 2 lower extremes of upset pawl and kick-backs, this embodiment dial sleeve 3 when being in extension tube 11 bottom, the inclined plane of dialling the portion 32 of dialling the sleeve 3 makes good and hugs closely together with the inboard inclined plane of 2 lower extremes of upset pawl, prevents that 2 lower extremes of upset pawl from inwards overturning, leads to the outside upset of upper end to expose.

Referring to fig. 1-4 and 8, the head of the tightening rope 4 is divided into a plurality of strands and is respectively connected with the inner sides of the lower ends of the turnover pawls 2, the part of the tail of the tightening rope 4 extending out of the detector body 1 is connected with a pull ring 41, and the turnover pawls 2 can be turned inwards to be tightened by pulling the pull ring 41, so that the fixation with the inner wall of the drill hole 5 is released, and the operation is convenient and fast.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or additions or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An optical fiber top plate detector easy to mount and dismount is characterized by comprising a detector body (1), a turning pawl (2) and a dial sleeve (3), the upper end of the detector body (1) is provided with a vertical extension pipe (11), a plurality of turnover pawls (2) are arranged around the outer side of the lower end of the extension pipe (11) close to the detector body (1), the overturning pawl (2) is rotationally connected to the pipe wall of the extension pipe (11), a poking sleeve (3) which is in threaded connection with the extension pipe (11) is arranged below the overturning pawl (2), the upper end of the toggle sleeve (3) is inserted into the inner side of the lower end of the turnover pawl (2), the inner side of the lower end of each turnover pawl (2) is connected with a tightening rope (4), the tightening rope (4) penetrates into the extension pipe (11), and the lower end of the tightening rope extends out of the lower portion of the detector body (1).

2. The optical fiber roof detector easy to mount and dismount as claimed in claim 1, wherein a torsion portion (31) with a hexagonal shape is arranged at the lower end of the dial sleeve, a dial portion (32) is arranged at the upper end of the dial sleeve (3), and the shape of the inner side of the lower end of the turnover pawl (2) is matched with the shape of the outer side of the dial portion (32).

3. The optical fiber roof detector easy to mount and dismount as claimed in claim 2, wherein the shape of the poke-rotating portion (32) comprises a frustum shape, and the diameter of the outer ring is gradually reduced from bottom to top.

4. The optical fiber roof detector easy to assemble and disassemble as claimed in claim 3, wherein the diameter of the middle part of the dial sleeve (3) dial part (32) and the torsion part (31) is not larger than that of the extension pipe (11).

5. The optical fiber top plate detector easy to mount and dismount is characterized in that the extension pipe (11) sequentially comprises a threaded portion (12), a pawl mounting portion (13) and an extension portion (14) from bottom to top, threads are arranged on the outer side surface of the threaded portion (12), a plurality of pawl holes (131) are formed around the pawl mounting portion (13), the extension portion (14) is in a circular pipe shape, and the outer diameter of the extension portion is not smaller than the maximum diameter of the threaded portion (12) and the maximum diameter of the pawl mounting portion (13).

6. The easy-to-mount/dismount optical fiber roof detector according to claim 5, wherein the shape of the pawl hole (131) comprises a long strip.

7. The optical fiber roof detector easy to mount and dismount as claimed in claim 6, wherein a connecting ring groove (132) is formed around the pawl mounting portion (13), the connecting ring groove (132) is perpendicular to the length direction of the pawl hole (131), the overturning pawl (2) is provided with connecting holes penetrating left and right at opposite positions of the connecting ring groove (132), and steel wires are arranged in the connecting ring groove (132) and the connecting holes to penetrate through the connecting holes.

8. The optical fiber roof detector easy to assemble and disassemble as claimed in claim 1, wherein the head of the tightening rope (4) is divided into a plurality of strands and is respectively connected with the inner sides of the lower ends of the turnover pawls (2), and the part of the tail of the tightening rope (4) extending out of the detector body (1) is connected with a pull ring (41).