Mining optical fiber floor heave quantity sensor

Abstract

The utility model discloses a mining optical fiber bottom heave quantity sensor, which comprises a sensor body and a fixed bottom plate, the plate body of the fixed bottom plate is symmetrically provided with mounting holes, the middle part of the top end of a bottom shell is fixedly provided with the fixed bottom plate, the bottom wall of the bottom shell is symmetrically provided with mounting auxiliary blocks, and two sides of the bottom shell are symmetrically provided with external limiting grooves. A top cover is fixedly connected to the top end of the bottom shell, external insertion plates matched with the external limiting grooves are symmetrically arranged on the two sides of the top cover, bolts used for positioning the external insertion plates are in threaded connection with the interiors of plate bodies of the external insertion plates, and protection assemblies capable of being matched are fixedly arranged at one end of the bottom shell and one end of the top cover. By designing the bottom shell and the top cover, the sensor body located inside can be supported, the quick plug part of the sensor body is protected in cooperation with a plug protection pipe, a head limiting installation ring, a positioning lantern ring and a positioning bolt, the service life is prolonged, and the use effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine optical fiber floor heave quantity sensor, concretely to a mine optical fiber floor heave quantity sensor. BACKGROUND

[0002] In underground mining engineering, floor heave quantity refers to the deformation quantity of the roadway floor upward, after the roadway of the mine is excavated, the deep rock mass is subjected to high ground stress, when the stress exceeds the strength limit of the rock, the rock will occur plastic deformation, in the area where the coal mining depth is larger, because the vertical ground stress is very large, the roadway floor rock will produce floor heave under the extrusion of this high stress, when the floor heave quantity exceeds a certain limit, the excessive deformation of the roadway floor will destroy the overall structural stability of the roadway, in the soft rock roadway, the floor heave can cause the rock stress of the roof and the two sides to redistribute, make the roof subsidence intensify, the convergence deformation of the two sides increases, eventually cause the roadway collapse, through using the floor heave quantity sensor to detect the floor heave quantity, the potential danger can be found in time, and support measures are taken in advance.

[0003] The traditional floor heave quantity sensor is directly connected with the optical fiber conducting wire and the floor heave quantity sensor through the plug-in mode when installing, no corresponding protection assembly is arranged at the plug part, the sensor is used below the roadway floor wall of the mine, is installed through the burying mode, when the floor heave quantity changes, different pressures are easily generated at the plug and the optical fiber conducting wire plug part, the plug connection is unevenly stressed, the plug and the optical fiber conducting wire plug part are directly stressed, the plug and the optical fiber conducting wire plug are damaged, and the service life and use effect of the floor heave quantity sensor are affected. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a mine optical fiber floor heave quantity sensor, to solve the problem that the traditional floor heave quantity sensor is directly connected with the optical fiber conducting wire and the floor heave quantity sensor through the plug-in mode when installing, no corresponding protection assembly is arranged at the plug part, the sensor is used below the roadway floor wall of the mine, is installed through the burying mode, when the floor heave quantity changes, different pressures are easily generated at the plug and the optical fiber conducting wire plug part, the plug connection is unevenly stressed, the plug and the optical fiber conducting wire plug part are directly stressed, the plug and the optical fiber conducting wire plug are damaged, and the service life and use effect of the floor heave quantity sensor are affected.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a mine optical fiber bottom drum quantity sensor, including sensor body, fixed bottom plate, the fixed bottom plate body symmetry is provided with mounting hole, the bottom shell top middle part is fixedly set with fixed bottom plate, the bottom shell bottom wall symmetry is provided with installation auxiliary block, the bottom shell both sides symmetry is provided with external limiting slot, the bottom shell top fixedly connected with top cover, the top cover both sides symmetry is provided with with external limiting slot matched external plug -in board, the external plug -in board body inside screw thread connection has the bolt for positioning external plug -in board, the bottom shell and top cover one end fixedly set up can cooperate protection component, the bottom shell and top cover other end fixedly set up connecting component, through the design bottom shell, top cover can support the sensor body in the inside, cooperate plug protection pipe, head limiting installation ring, positioning sleeve ring, positioning bolt, protect sensor body, quick plug part, weaken the direct extrusion of external pressure to sensor body, prevent damage plug and optical fiber transmission line plug, prolong the service life of bottom drum quantity sensor, guarantee use effect.

[0006] Preferably, the sensor body one side screw connection has first joint, the sensor body top screw connection second joint, the sensor body one end rotationally connected with quick plug, forms complete detection structure.

[0007] Preferably, the protection component includes plug protection pipe, head limiting installation ring, positioning sleeve ring, positioning bolt, the bottom shell and top cover same end symmetry is provided with plug protection pipe, the plug protection pipe away from the bottom shell and top cover one end fixedly connected with head limiting installation ring, the head limiting installation ring outside splicing sleeve is equipped with positioning sleeve ring, two the positioning sleeve ring top is equipped with positioning bolt, convenient for the protection of quick plug and optical fiber transmission line plug from outside after being connected, enhance the service life of quick plug and optical fiber transmission line plug.

[0008] Preferably, the plug protection pipe inside fixedly laid has filling arc plate, the filling arc plate inner side surface is connected with quick plug outer side surface, so that the quick plug set in the plug protection pipe inside is more stable.

[0009] Preferably, the connecting component includes fixed positioning plate, positioning jack, top cover, splicing positioning plate, positioning plug -in board, the other end of the bottom shell is fixedly provided with fixed positioning plate, the fixed positioning plate top surface is provided with positioning jack, the other end of the top cover is fixedly provided with splicing positioning plate, the splicing positioning plate bottom surface is fixedly provided with with positioning plug -in board matched with positioning jack, convenient for the fixing of the bottom shell and top cover after splicing from the other end of the bottom shell and top cover, so that the structure after splicing is more stable.

[0010] Preferably, the top cover is provided with a through hole matched with the second connector, and the side wall of the top cover is provided with another through hole matched with the first connector, so that the first connector with the protection structure and the second connector can be exposed from the top cover, and the connection is facilitated.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The bottom shell and the top cover are designed to support the sensor body in the inside, and the plug protection pipe, the head limiting mounting ring, the positioning sleeve ring and the positioning bolt are used to protect the sensor body and the quick plug part, weaken the direct extrusion force of the external pressure on the sensor body, prevent the damage of the plug and the optical fiber transmission line plug, prolong the service life of the bottom drum quantity sensor and guarantee the use effect.

[0013] The optical fiber quick connector is designed, the cumbersome procedures such as field fusion of optical fibers are omitted, and the quick plug connector is used for butt joint in advance, so that time and labor are saved, and maintenance is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is an installation auxiliary block position distribution schematic view of the utility model;

[0016] Figure 3 It is a bottom shell and top cover internal structure schematic view of the utility model;

[0017] Figure 4 It is a three-dimensional structure schematic view of the utility model Figure 2 It is a local enlarged structure schematic view of the utility model.

[0018] In the drawing: 1, sensor body; 2, first connector; 3, second connector; 4, quick plug; 5, filling arc plate; 6, fixed bottom plate; 7, mounting hole; 8, bottom shell; 9, installation auxiliary block; 10, external limiting groove; 11, fixed positioning plate; 12, positioning jack; 13, top cover; 14, splicing positioning plate; 15, positioning plugboard; 16, plug protection pipe; 17, head limiting mounting ring; 18, positioning sleeve ring; 19, positioning bolt; 20, external plugboard. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment.

[0020] Please refer to Figures 1-4The utility model provides a kind of mine optical fiber bottom drum quantity sensor, including sensor body 1, fixed bottom plate 6, fixed bottom plate 6 plate body is symmetrically provided with mounting hole 7, is fixed in specified position by mounting bolt when using, it is convenient for subsequent installation sensor body 1, fixed bottom plate 6 top middle part is fixedly arranged with bottom shell 8, bottom shell 8 bottom wall is symmetrically provided with installation auxiliary block 9, installation auxiliary block 9 is used for providing base point for the installation of sensor body 1, bottom shell 8 two sides are symmetrically provided with external limiting groove 10, bottom shell 8 top end is fixedly connected with top cover 13, top cover 13 two sides are symmetrically provided with the external plug-in board 20 matched with external limiting groove 10, external plug-in board 20 can be inserted into external limiting groove 10, external plug-in board 20 plate body is internally threadedly connected with bolt for positioning external plug-in board 20, the bolt of this place is screwed into the inside of bottom shell 8 side wall, bottom shell 8 and top cover 13 one end are fixedly arranged with the protection assembly that can cooperate, bottom shell 8 and top cover 13 other end are fixedly arranged with connecting assembly;

[0021] Further, the first joint 2 is threadedly connected to one side of the sensor body 1, the first joint 2 is used for being connected with the water supply pipe and the liquid-filled tank, the second joint 3 is threadedly connected to the top end of the sensor body 1, the hollow cylindrical pipe body is arranged at the bottom end of the sensor body 1, one end of the pipe body is sealed, the cavity is formed in the pipe body, two chambers are formed in the cavity, the rear end is the liquid chamber, and the front end is sealed and isolated, the bellows that can be extended and contracted is arranged in the cavity, the grating passes through the bellows and is fixed at both ends, and the grating extends from the front chamber and is connected with the optical fiber quick connector 4, the second joint 3 is used for connecting the air pipe and being communicated with the atmosphere, the quick connector 4 is rotatably connected to one end of the sensor body 1, when in use, the first joint 2 is connected with the tank containing liquid through the pipeline, and the second joint 3 is connected with the atmosphere through the air pipe.

[0022] Further, the protection assembly includes the plug protection pipe 16, the head limiting mounting ring 17, the positioning sleeve ring 18, and the positioning bolt 19, the plug protection pipe 16 is symmetrically arranged at the same end of the bottom shell 8 and the top cover 13, the head limiting mounting ring 17 is fixedly connected to one end of the plug protection pipe 16 away from the bottom shell 8 and the top cover 13, the positioning sleeve ring 18 is spliced and arranged outside the head limiting mounting ring 17, the positioning bolt 19 is arranged through the top of the two positioning sleeve rings 18, the plug protection pipe 16, the head limiting mounting ring 17, and the positioning sleeve ring 18 are arranged in two groups, and the contact with the quick connector 4 is completed by the upper and lower butt joint.

[0023] Further, the filling arc plate 5 is fixedly arranged in the plug protection pipe 16, the inside surface of the filling arc plate 5 is connected with the outside surface of the quick connector 4, so that the quick connector 4 arranged in the plug protection pipe 16 is more stable.

[0024] Further, the connecting assembly comprises a fixed positioning plate 11, a positioning hole 12, a top cover 13, a splicing positioning plate 14 and a positioning plug 15, the other end of the bottom shell 8 is fixedly provided with the fixed positioning plate 11, the top surface of the fixed positioning plate 11 is provided with the positioning hole 12, the other end of the top cover 13 is fixedly provided with the splicing positioning plate 14, and the bottom surface of the splicing positioning plate 14 is fixedly provided with the positioning plug 15 matched with the positioning hole 12, and the bottom shell 8 and the top cover 13 are connected and positioned from the other end;

[0025] Further, the top cover 13 is provided with a through hole matched with the second connector 3 at the top, and another through hole matched with the first connector 2 is formed in the side wall of the top cover 13, so that the connection is facilitated.

[0026] In use, the liquid cavity is first filled with water through the water pipe, and the air in the liquid cavity is discharged through the control of the ball valve.

[0027] In use, the liquid cavity is first filled with water through the water pipe, and the air in the liquid cavity is discharged through the control of the ball valve. When the position of the sensor is displaced in height, the atmospheric pressure stretches the bellows, and the bellows drives the internal grating to change, and the data is transmitted to the computer system through the optical cable. The deformation of the roadway floor is determined according to the change of the wavelength and the formula, the sensor body 1 is installed in the bottom shell 8 by referring to the installation auxiliary block 9, the top cover 13 is butted with the bottom shell 8, the external plug plate 20 is inserted into the external limiting groove 10, the bolt at the position is rotated to be screwed into the side wall of the bottom shell 8, the bolt for positioning the external plug plate 20 is rotated, the positioning plug 15 is inserted into the positioning hole 12, another bolt at the position is rotated to position the positioning plug 15, the plug protection pipe 16 and the head limiting installation ring 17 at the end of the bottom shell 8 and the top cover 13 are spliced with the filling arc plate 5, the positioning sleeve ring 18 is sleeved on the head limiting installation ring 17, and the two positioning sleeve rings 18 are butted through the positioning bolt 19.

[0028] Although the utility model 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 embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mine optical fiber floor heave sensor comprising a sensor body (1), a fixed floor plate (6), characterized in that: The fixed bottom plate (6) plate body is symmetrically provided with a mounting hole (7), the fixed bottom plate (6) top end middle part is fixedly provided with a bottom shell (8), the bottom shell (8) bottom wall is symmetrically provided with a mounting auxiliary block (9), the bottom shell (8) both sides are symmetrically provided with an external limiting groove (10), the bottom shell (8) top end is fixedly connected with a top cover (13), the top cover (13) both sides are symmetrically provided with an external plug-in plate (20) matched with the external limiting groove (10), the external plug-in plate (20) plate body is internally threadedly connected with a bolt for positioning the external plug-in plate (20), the bottom shell (8) and the top cover (13) one end are fixedly provided with a cooperable protection assembly, the bottom shell (8) and the top cover (13) other end are fixedly provided with a connecting assembly.

2. A mine optical fiber floor heave gauge according to claim 1, characterized in that: The sensor body (1) one side is threadedly connected with a first connector (2), the sensor body (1) top end is threadedly connected with a second connector (3), the sensor body (1) one end is rotatably connected with a quick plug (4).

3. A mine optical fiber floor heave sensor according to claim 1, characterized in that: The protection assembly includes a plug protection pipe (16), a head limiting installation ring (17), a positioning sleeve ring (18), a positioning bolt (19), the bottom shell (8) and the top cover (13) same end are symmetrically provided with a plug protection pipe (16), the plug protection pipe (16) away from the bottom shell (8) and the top cover (13) one end is fixedly connected with a head limiting installation ring (17), the head limiting installation ring (17) outside is spliced with a positioning sleeve ring (18), two positioning sleeve rings (18) top are provided with a positioning bolt (19).

4. A mine optical fiber floor heave sensor according to claim 3, characterized in that: The plug protection pipe (16) inside is fixedly laid with a filling arc plate (5), the filling arc plate (5) inner side surface is in contact with the quick plug (4) outer side surface.

5. The mine optical fiber floor heave gauge of claim 1 wherein: The connecting assembly includes a fixed positioning plate (11), a positioning jack (12), a top cover (13), a splicing positioning plate (14), a positioning plug-in plate (15), the bottom shell (8) other end is fixedly provided with a fixed positioning plate (11), the fixed positioning plate (11) top surface is provided with a positioning jack (12), the top cover (13) other end is fixedly provided with a splicing positioning plate (14), the splicing positioning plate (14) bottom surface is fixedly provided with a positioning plug-in plate (15) matched with the positioning jack (12).

6. A mine optical fiber floor heave sensor according to claim 5, characterized in that: The top cover (13) top is provided with a through hole matched with the second connector (3), the top cover (13) side wall is provided with another through hole matched with the first connector (2).

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