CN213632479U

CN213632479U - Optical fiber sensor for detecting roof pressure by mining optical fiber

Info

Publication number: CN213632479U
Application number: CN202022718023.XU
Authority: CN
Inventors: 吴中华
Original assignee: Shandong Fangying Intelligent Technology Co ltd
Current assignee: Shandong Fangying Intelligent Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-06
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a mining optical fiber detection roof pressure's optical fiber sensor, including roof, device body, compression spring, depression bar and pick-up plate, the roof top is equipped with the device base to device base surface is equipped with the mounting hole, and the device base passes through mounting hole and roof mutual installation simultaneously, and fixed surface installs the device body on the device base moreover, the inside sleeve that is equipped with all around of device body, the inside movable mounting of sleeve has the connecting rod simultaneously to the connecting rod runs through in the device body, and the connecting rod other end and clamp plate mutual installation, and be equipped with optical fiber sensor in the middle of the clamp plate top, compression spring locates the inside left side of device body, and the compression spring surface is equipped with the depression bar simultaneously. This optical fiber sensor of mining optical fiber detection roof pressure can fix device body and clamp plate to improve the stability of device body, and the pressure variation that the roof received can be known at any time through the scale mark that the pick-up plate top was equipped with.

Description

Optical fiber sensor for detecting roof pressure by mining optical fiber

Technical Field

The utility model relates to a hot pressing complex technology field specifically is an optical fiber sensor of mining optical fiber detection roof pressure.

Background

Fiber optic sensors are a new type of sensor that has emerged in recent decades and relates to many important fields that modify or control the behavior and manner of light propagation in this region by creating a periodic refractive index profile in the axial direction of the fiber. The grating has the advantages of simple manufacture, good stability, small volume, electromagnetic interference resistance, flexible use, easy integration with the optical fiber, capability of forming a network and the like, and is widely applied to the field of optical sensing in recent years; the pressure monitoring device is mainly applied to pressure monitoring of bridges and dams in urban construction; measuring current and temperature in the power system; pressure and refractive index detection in medical and biological fields.

The existing pressure detection device has a complex structure, and the change of the pressure applied to the pressure detection device can not be known at any time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical fiber sensor of mining optical fiber detection roof pressure to it is complicated to provide current pressure measurement device structure in solving above-mentioned background art, and generally can not know the problem of the pressure change that receives at any time.

In order to achieve the above object, the utility model provides a following technical scheme: an optical fiber sensor for detecting the pressure of a top plate by using a mine optical fiber comprises the top plate, a device body, a compression spring, a compression rod and a detection plate, wherein the top end of the top plate is provided with a device base, the surface of the device base is provided with a mounting hole, the device base is mutually mounted with the top plate through the mounting hole, the upper surface of the device base is fixedly provided with the device body, the periphery of the inner part of the device body is provided with a sleeve, the inner part of the sleeve is movably provided with a connecting rod, the connecting rod penetrates through the device body, the other end of the connecting rod is mutually mounted with a pressing plate, the middle of the top end of the pressing plate is provided with the optical fiber sensor, the compression spring is arranged at the left side of the inner part of the device body, the surface of the compression spring is provided with the compression, and inside the device body was located to the pick-up plate, pick-up plate below and reset spring mutual erection to the reset spring other end and the inside bottom mutual erection of reset spring, the pick-up plate runs through in the device body to the detection plate surface is equipped with the scale mark, and the below of recess is located to the pick-up plate simultaneously, and the recess is located clamp plate surface right side moreover.

Preferably, four sleeves are uniformly arranged in the device body, the length of each sleeve is equal to that of the connecting rod, and the length of each sleeve is greater than half of that of the device body.

Preferably, the initial length of the compression spring is greater than the initial length of the return spring, and the product of the elastic coefficient of the return spring and the length of the latch is less than the static friction force of the latch and the slider.

Preferably, the scale mark is arranged at the top end of the detection plate, and the zero scale point of the scale mark is arranged at the top end.

Preferably, the length of the groove is larger than the diameter of the detection plate, and the groove is arranged right above the detection plate.

Preferably, the weight of the detection plates at the left end and the right end of the return spring is equal, and the elastic coefficient of the return spring is smaller than that of the compression spring.

Compared with the prior art, the beneficial effects of the utility model are that: according to the optical fiber sensor for detecting the pressure of the top plate by the mining optical fiber, the device body and the pressing plate can be fixed, so that the stability of the device body is improved, and the pressure change of the top plate can be known at any time through the scale marks arranged above the detection plate;

1. the device is provided with a structure that a device body, a pressing plate, an optical fiber sensor, a compression spring, a pressing rod, a clamping block, a reset spring, a detection plate, a sliding block, scale marks and a groove are matched, so that when the pressing plate presses down the pressing rod, the detection plate is popped out from the inside of the groove formed in the pressing plate, the scale marks arranged above the detection plate can calculate the pressure applied to the top plate, and the change of the pressure applied to the top plate can be known at any time through the scale marks arranged above the detection plate;

2. the structure that is provided with the top plate, the device base, the device body, the sleeve, the connecting rod and the mounting hole are matched can fix the device body and the pressing plate, so that the stability of the device body is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a structural diagram of the device body in a stressed state;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is the utility model discloses a structural diagram that cuts open downwards.

In the figure: 1. a top plate; 2. a device base; 3. a device body; 4. a sleeve; 5. a connecting rod; 6. pressing a plate; 7. an optical fiber sensor; 8. a compression spring; 9. a pressure lever; 10. a clamping block; 11. a return spring; 12. detecting a plate; 13. a slider; 14. scale lines; 15. a groove; 16. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an optical fiber sensor for detecting roof pressure by using mining optical fibers comprises a roof 1, a device base 2, a device body 3, a sleeve 4, a connecting rod 5, a pressing plate 6, an optical fiber sensor 7, a compression spring 8, a pressing rod 9, a clamping block 10, a reset spring 11, a detection plate 12, a sliding block 13, a scale mark 14, a groove 15 and a mounting hole 16, wherein the device base 2 is arranged at the top end of the roof 1, the surface of the device base 2 is provided with the mounting hole 16, the device base 2 is mutually mounted with the roof 1 through the mounting hole 16, the device body 3 is fixedly mounted on the upper surface of the device base 2, the sleeve 4 is arranged on the periphery inside the device body 3, the connecting rod 5 is movably mounted inside the sleeve 4, the connecting rod 5 penetrates through the device body 3, the other end of the connecting rod 5 is mutually mounted with the pressing plate 6, the optical fiber sensor 7 is arranged in, simultaneously compression spring 8 surface is equipped with depression bar 9, and depression bar 9 runs through in device body 3, and the depression bar 9 other end and 6 fixed mounting of clamp plate, depression bar 9 right side is equipped with fixture block 10, and the fixture block 10 top is equipped with

slider

13, 12 left sides of detection plate are located to slider 13 simultaneously, and detection plate 12 locates device body 3 insidely, detection plate 12 below and reset spring 11 mutual erection, and the 11 other end of reset spring and 11 inside bottom mutual mountings of reset spring, detection plate 12 runs through in device body 3, and detection plate 12 surface is equipped with scale mark 14, recess 15's below is located to detection plate 12 simultaneously, and recess 15 locates 6 surface right sides.

In this example, four sleeves 4 are uniformly arranged in the device body 3, the length of each sleeve 4 is equal to that of each connecting rod 5, the length of each sleeve 4 is greater than half of that of the device body 3, and five degrees of freedom of the pressing plate 6 can be limited through the sleeves 4 and the connecting rods 5, so that the pressing plate 6 can be positioned;

the initial length of the compression spring 8 is larger than that of the return spring 11, and the product of the elastic coefficient of the return spring 11 and the length of the fixture block 10 is smaller than the static friction force of the fixture block 10 and the slide block 13, so that when the compression spring is not stressed, the fixture block 10 of the compression rod 9 is positioned above the slide block 13 of the detection plate 12;

the weights of the detection plates 12 at the left end and the right end of the return spring 11 are equal, and the elastic coefficient of the return spring 11 is smaller than that of the compression spring 8, so that after the top plate 1 is not stressed, the fixture block 10 of the compression rod 9 is upwards ejected through the compression spring 8, the fixture block 10 of the compression rod 9 is positioned above the slide block 13 of the detection plate 12, and the degree of the scale mark 14 above the detection plate 12 is zero;

the scale mark 14 is arranged at the top end of the detection plate 12, and the zero scale point of the scale mark 14 is arranged at the top end, so that the deformation amount of the compression spring 8 can be known through the scale mark 14 of the detection plate 12, and the pressure applied to the top plate 1 can be calculated;

the length of the groove 15 is larger than the diameter of the detection plate 12, and the groove 15 is arranged right above the detection plate 12, so that the detection plate 12 can be ejected from the inside of the groove 15 of the pressure plate 6 when the pressure plate 6 is stressed.

The working principle is as follows: in the use of the device, as shown in fig. 1 and 4, the device body 3 is fixedly mounted above the top plate 1 through the mounting holes 16 formed around the device base 2, and the optical fiber sensor 7 is disposed on the surface of the pressing plate 6 above the device body 3.

Then, as shown in fig. 1-3, when the pressure plate 6 is stressed, the pressure moves the pressure plate 6 downward, so that the connecting rods 5 around the pressure plate 6 move inside the sleeve 4, and at the same time, the pressure plate 6 compresses the compression spring 8 downward, so that the pressure rod 9 moves downward, further, the slider 13 arranged on the detection plate 12 is ejected upward from the fixture block 10 of the pressure rod 9 due to the return spring 11, so that the detection plate 12 is ejected from the inside of the groove 15 at the top of the pressure plate 6, and thus, the scale marks 14 at the top end of the detection plate 12 and the degree of the cross section of the pressure plate 6 can be observed, so that the pressure applied to the top plate 1 can be calculated, and the pressure change applied to the top plate 1 can be known at any time through the.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mining optical fiber detection roof pressure's optical fiber sensor, includes roof (1), device body (3), compression spring (8), depression bar (9) and pick-up plate (12), its characterized in that: the device is characterized in that the top end of the top plate (1) is provided with a device base (2), the surface of the device base (2) is provided with a mounting hole (16), the device base (2) is mutually mounted with the top plate (1) through the mounting hole (16), the upper surface of the device base (2) is fixedly provided with a device body (3), the periphery of the inside of the device body (3) is provided with a sleeve (4), the inside of the sleeve (4) is movably provided with a connecting rod (5), the connecting rod (5) penetrates through the device body (3), the other end of the connecting rod (5) is mutually mounted with a pressing plate (6), the middle of the top end of the pressing plate (6) is provided with an optical fiber sensor (7), the compression spring (8) is arranged on the left side of the inside of the device body (3), the surface of the compression spring (8) is provided with a pressing rod (9), the pressing rod (9) penetrates, depression bar (9) right side is equipped with fixture block (10) to fixture block (10) top is equipped with slider (13), and pick-up plate (12) left side is located in slider (13) simultaneously, and inside device body (3) was located in pick-up plate (12), pick-up plate (12) below and reset spring (11) are mutually installed, and the reset spring (11) other end and the inside bottom mutual installation of reset spring (11), pick-up plate (12) run through in device body (3) to pick-up plate (12) surface is equipped with scale mark (14), and the below of recess (15) is located in while pick-up plate (12), and recess (15) are located clamp plate (6) surface right side moreover.

2. The mining optical fiber sensor for detecting the pressure of the top plate according to claim 1, wherein: four sleeves (4) are uniformly arranged in the device body (3), the length of each sleeve (4) is equal to that of the corresponding connecting rod (5), and the length of each sleeve (4) is larger than half of that of the device body (3).

3. The mining optical fiber sensor for detecting the pressure of the top plate according to claim 1, wherein: the initial length of the compression spring (8) is larger than that of the return spring (11), and the product of the elastic coefficient of the return spring (11) and the length of the fixture block (10) is smaller than the static friction force of the fixture block (10) and the slide block (13).

4. The mining optical fiber sensor for detecting the pressure of the top plate according to claim 1, wherein: the weights of the detection plates (12) at the left end and the right end of the return spring (11) are equal, and the elastic coefficient of the return spring (11) is smaller than that of the compression spring (8).

5. The mining optical fiber sensor for detecting the pressure of the top plate according to claim 1, wherein: the scale mark (14) is arranged at the top end of the detection plate (12), and the zero scale point of the scale mark (14) is arranged at the top end.

6. The mining optical fiber sensor for detecting the pressure of the top plate according to claim 1, wherein: the length of the groove (15) is larger than the diameter of the detection plate (12), and the groove (15) is arranged right above the detection plate (12).