CN219284272U

CN219284272U - Novel high-precision fiber bragg grating inclination angle monitoring sensor

Info

Publication number: CN219284272U
Application number: CN202320077999.4U
Authority: CN
Inventors: 陈永光; 胡冰; 刘岩; 李海湘; 黄汉成; 陈伟; 刘徽; 任俊华; 刘东锋; 陈毅湘
Original assignee: Guangdong Geology Construction Engineering Investigation Research Institute
Current assignee: Guangdong Geology Construction Engineering Investigation Research Institute
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-30
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a novel high-precision fiber bragg grating inclination angle monitoring sensor which comprises a protective box, wherein an installation plate is fixedly installed at the bottom of an inner cavity of the protective box, fixing rods are fixedly installed on two sides of the top of the installation plate, and grid plates are fixedly installed on the top of the inner side of the fixing rods. According to the utility model, a user can conveniently install and fix the grating plate through the arrangement of the fixing rod, the air in the protective box can be conveniently kept to circulate through the arrangement of the grating plate, the fan blades on the surface of the rotating shaft can be effectively driven to rotate through the operation of the driving turntable, and dust in the protective box is discharged to the outside from the ventilation opening, so that the problem that the existing fiber bragg grating inclination angle monitoring sensor is poor in dustproof effect and causes that more dust is easily accumulated in the sensor in the use process, and the measurement accuracy of the sensor is easily seriously affected if the dust is accumulated for a long time.

Description

Novel high-precision fiber bragg grating inclination angle monitoring sensor

Technical Field

The utility model relates to the technical field of sensors, in particular to a novel high-precision fiber bragg grating inclination angle monitoring sensor.

Background

With the increasing degree of intelligence in coal mining, inclination angle measurement has been widely applied to various aspects of coal mining, such as measuring the operating angle of a coal cutter body, swing angle of a rocker arm, and the like. The current manner of implementing tilt angle measurement is as follows: one is indirectly measured by an acceleration sensor, most of the sensors adopt cantilever beam and metal diaphragm structures, and the packaging structure is complex, so that the measurement range is narrow, and particularly the sensitivity is low during medium-frequency and high-frequency measurement; another is to use the dip angle sensor, the dip angle sensor at present generally carries on the dip angle measurement on the basis of the principle such as the resistance strain type, dielectric liquid type, capacitance type, inductance type, potentiometer type, etc., for example a kind of fiber bragg grating dip angle sensor with application number of CN110672067A, including sensor base, fiber bragg grating group, hinge group, mass block and calculating unit; the sensor base is fixed on the tested structure, the fiber bragg grating group is arranged on the sensor base, and the sensor base is connected with the mass block through a hinge group; the optical fiber grating group comprises a first optical fiber grating and a second optical fiber grating, the hinge group comprises a first hinge and a second hinge, the first hinge corresponds to the first optical fiber grating, and the second hinge corresponds to the second optical fiber grating; when the detected structure is inclined, the mass block drives the first hinge and the second hinge to rotate, so that the stress of the fiber bragg grating group is changed, and the calculating unit is used for analyzing the inclined angle of the detected structure according to the wavelength drift amount of the first fiber bragg grating and the second fiber bragg grating. The sensor provided by the application has higher sensitivity and measurement accuracy, and is suitable for inclination angle detection in severe environments.

However, the existing fiber bragg grating inclination angle monitoring sensor has the problem that the dustproof effect is poor, so that the sensor is easy to accumulate more dust in the use process, and if the dust is accumulated for a long time, the measurement accuracy of the sensor in the use process is easy to be seriously affected, inconvenience is brought to a user, and the use requirement of the user at the present stage cannot be met.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model aims to provide a novel high-precision fiber grating inclination angle monitoring sensor which has the advantage of good dustproof effect, and solves the problems that the existing fiber grating inclination angle monitoring sensor is generally poor in dustproof effect, so that more dust is easily accumulated in the sensor in the use process, and the measurement accuracy of the sensor is easily seriously affected if the dust is accumulated for a long time.

(II) technical scheme

The technical scheme includes that the novel high-precision fiber bragg grating inclination angle monitoring sensor comprises a protective box, a mounting plate is fixedly mounted at the bottom of an inner cavity of the protective box, fixing rods are fixedly mounted on two sides of the top of the mounting plate, grid plates are fixedly mounted on the tops of the inner sides of the fixing rods, mounting plates are fixedly mounted on two sides of the surfaces of the grid plates and are located in the inner cavity of the protective box, a driving turntable is movably mounted in the middle of the top of the mounting plates, a rotating shaft is fixedly connected to the top of the driving turntable, fan blades are fixedly mounted on the surface of the rotating shaft, a top plate is fixedly mounted on the top of the protective box, ventilation openings are formed in the two sides of the surface of the top plate and extend to the inner cavity of the protective box, and dust covers are fixedly mounted on the inner sides of the ventilation openings.

As a preferable scheme, a fixing groove is formed in the middle of the top of the mounting plate, a fixing block is clamped in an inner cavity of the fixing groove, and a sensor body is fixedly connected to the top of the fixing block.

As the preferred scheme, the equal fixed mounting in both sides at mounting panel top and the middle part on dead lever surface has the wire binding ware, the through-hole has all been seted up to the both sides of protective housing inner chamber, the both sides of protective housing just are located the equal fixed mounting in the outside of through-hole and have the lag, the both sides of sensor body just extend to the equal fixedly connected with detection line of inboard of through-hole.

As the preferable scheme, the bottom of mounting disc just is located the top fixed mounting of wire binder and has the stiffening rod, the bottom fixed mounting of protective housing has the guard plate.

As the preferable scheme, both sides all fixed mounting have the bottom plate around the guard plate bottom, the both sides on bottom plate surface are all fixed mounting have the bonding pad.

As the preferable scheme, the positive both sides of protective housing all movable mounting has the guard gate, the outside fixedly connected with connecting plate of drive carousel.

As a preferable scheme, the top of the installation disc is fixedly provided with a baffle, the tail end of the connecting plate is movably provided with a limiting wheel, and the limiting wheel is movably connected with the baffle.

(III) beneficial effects

Compared with the prior art, the utility model provides a novel high-precision fiber bragg grating inclination angle monitoring sensor, which has the following beneficial effects

1. The setting up convenient to use ware through the dead lever installs and fixes the grid board, the setting up through the grid board is convenient for keep the inside air of protection box circulate, can effectively drive the flabellum on pivot surface through the drive carousel operation and rotate and arrange the dust of protection box inside to the external world from the vent, can prevent effectively that the device from placing the in-process too much dust from the vent and falling into the inside of protection box through the setting up of dust cover, the precision of device in the use and staff's work efficiency have been promoted effectively, current fiber bragg grating inclination monitoring sensor ubiquitous dust proof effect relatively poor phenomenon has been solved, lead to the sensor in the use, inside easily cumulating more dust, long-time can pile up, easily seriously influence the problem of the measurement precision of sensor in the use.

2. The setting through the fixed slot convenient to use person blocks the installation to fixed block and sensor body, be convenient for accomodate the constraint to the required detection line of sensor body detection through the buncher, can protect the detection line through the setting of lag, can promote the stability of mount pad in the use through the setting of stiffener, install the protection box through bonding sheet convenient to use person and use and detect, open the protection box and overhaul its internals through the setting of guard gate convenient to use person, can prevent effectively that the drive carousel from appearing rocking at rotatory in-process through the setting of baffle and spacing wheel.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a perspective view of the structure of the present utility model;

FIG. 3 is a front cross-sectional view of the structure of the protective housing of the present utility model;

fig. 4 is a top view of the mounting plate structure of the present utility model.

In the figure: 1. a protective box; 2. a mounting plate; 3. a fixed rod; 4. a grating plate; 5. a mounting plate; 6. driving a turntable; 7. a rotating shaft; 8. a fan blade; 9. a top plate; 10. a vent; 11. a dust cover; 12. a fixing groove; 13. a fixed block; 14. a sensor body; 15. a wire harness; 16. a through hole; 17. a protective sleeve; 18. a detection line; 19. a reinforcing rod; 20. a protection plate; 21. a bottom plate; 22. an adhesive sheet; 23. a protective door; 24. a connecting plate; 25. a baffle; 26. and a limiting wheel.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, the present utility model: the novel high-precision fiber bragg grating inclination angle monitoring sensor comprises a protective box 1, wherein a mounting plate 2 is fixedly arranged at the bottom of an inner cavity of the protective box 1, fixing rods 3 are fixedly arranged at two sides of the top of the mounting plate 2, grating plates 4 are fixedly arranged at the top of the inner side of the fixing rods 3, mounting plates 5 are fixedly arranged at two sides of the surface of each grating plate 4 and are positioned in the inner cavity of the protective box 1, a driving turntable 6 is movably arranged in the middle of the top of each mounting plate 5, a rotating shaft 7 is fixedly connected to the top of each driving turntable 6, fan blades 8 are fixedly arranged on the surface of each rotating shaft 7, a top plate 9 is fixedly arranged at the top of the protective box 1, ventilation openings 10 are respectively arranged at two sides of the surface of the top plate 9 and extend to the inner cavity of the protective box 1, dust covers 11 are fixedly arranged at the inner sides of the ventilation openings 10, a user can conveniently install and fix the grating plates 4 through the arrangement of the fixing rods 3, the setting through grid board 4 is convenient for keep the inside air of protective housing 1 circulate, can effectively drive the flabellum 8 on pivot 7 surface through the operation of drive carousel 6 and rotate and arrange the dust of protective housing 1 inside to the external world from vent 10, can prevent effectively that too much dust from vent 10 falls into the inside of protective housing 1 in the setting of dust cover 11 at the in-process of placing of device, the precision of device in the use and staff's work efficiency have been promoted effectively, the phenomenon that current fiber bragg grating inclination monitoring sensor ubiquitous dustproof effect is relatively poor has been solved, lead to the sensor in the use, inside easily cumulating more dust, long-time can pile up, easily seriously influence the problem of the measurement accuracy of sensor in the use.

As a preferable scheme, a fixing groove 12 is formed in the middle of the top of the mounting plate 2, a fixing block 13 is clamped in an inner cavity of the fixing groove 12, and a sensor body 14 is fixedly connected to the top of the fixing block 13.

The fixing groove 12 is arranged to facilitate the clamping and installation of the fixing block 13 and the sensor body 14 by a user.

As the preferred proposal, the two sides of the top of the mounting plate 2 and the middle part of the surface of the fixed rod 3 are fixedly provided with wire bunchers 15, the two sides of the inner cavity of the protective box 1 are provided with through holes 16, the two sides of the protective box 1 and the outer sides of the through holes 16 are fixedly provided with protective sleeves 17, the two sides of the sensor body 14 and the inner sides extending to the through holes 16 are fixedly connected with detection wires 18,

the wire binding device 15 is convenient for accommodating and binding the detection wire 18 required for detecting the sensor body 14, and the detection wire 18 can be protected through the arrangement of the protective sleeve 17.

Preferably, a reinforcing rod 19 is fixedly arranged at the bottom of the mounting plate 5 and at the top of the wire binding device 15, and a protection plate 20 is fixedly arranged at the bottom of the protection box 1.

The stability of the mounting plate 5 during use can be improved by the provision of the reinforcing rods 19.

Preferably, the front and rear sides of the bottom of the protection plate 20 are fixedly provided with a bottom plate 21, and the two sides of the surface of the bottom plate 21 are fixedly provided with adhesive sheets 22.

The adhesive sheet 22 facilitates the installation, use and detection of the protective case 1 by a user.

As the preferable scheme, the guard gate 23 is movably installed on both sides of the front face of the guard box 1, and the connecting plate 24 is fixedly connected with the outer side of the driving turntable 6.

The protective door 23 is convenient for a user to open the protective box 1 and overhaul the internal parts thereof.

Preferably, the top of the installation disc 5 is fixedly provided with a baffle plate 25, the tail end of the connecting plate 24 is movably provided with a limiting wheel 26, and the limiting wheel 26 is movably connected with the baffle plate 25.

The arrangement of the baffle 25 and the limiting wheels 26 can effectively prevent the driving turntable 6 from shaking in the rotating process.

The working principle of the utility model is that; the fixing block 13 and the sensor body 14 are clamped and installed through the fixing groove 12, the sensor body 14 is detected through the wire binding device 15 to be contained and bound through the detection wire 18, the grid plate 4 is installed and fixed through the fixing rod 3, the protection box 1 can be installed and used and detected through the adhesive piece 22, the fan blade 8 on the surface of the rotating shaft 7 can be driven to rotate through the operation of the driving turntable 6, and dust in the protection box 1 is discharged to the outside from the ventilation opening 10.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a novel high accuracy fiber bragg grating inclination monitoring sensor, includes protective housing (1), its characterized in that: the utility model discloses a dust-proof device for the inner wall of a protective housing, including mounting panel (2) and shield (1), mounting panel (2) is fixed mounting in the bottom of inner chamber of protective housing (1), both sides at mounting panel (2) top are equal fixed mounting have dead lever (3), the inboard top fixed mounting of dead lever (3) has grid board (4), both sides on grid board (4) surface and the inner chamber that is located protective housing (1) are equal fixed mounting have mounting dish (5), the middle part movable mounting at mounting dish (5) top has drive carousel (6), the top fixedly connected with pivot (7) of drive carousel (6), the surface fixed mounting of pivot (7) has flabellum (8), the top fixed mounting of protective housing (1) has roof (9), vent (10) have all been seted up to the inner chamber that the both sides on roof (9) surface and extend to protective housing (1), the inboard fixed mounting of vent (10) has dust cover (11).

2. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 1, wherein: the sensor is characterized in that a fixing groove (12) is formed in the middle of the top of the mounting plate (2), a fixing block (13) is clamped in an inner cavity of the fixing groove (12), and a sensor body (14) is fixedly connected to the top of the fixing block (13).

3. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 2, wherein: the wire harness device is characterized in that wire harnesses (15) are fixedly installed on two sides of the top of the mounting plate (2) and the middle part of the surface of the fixing rod (3), through holes (16) are formed in two sides of an inner cavity of the protective box (1), protective sleeves (17) are fixedly installed on two sides of the protective box (1) and located on the outer sides of the through holes (16), and detection wires (18) are fixedly connected on two sides of the sensor body (14) and extend to the inner sides of the through holes (16).

4. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 1, wherein: the bottom of the mounting plate (5) is fixedly provided with a reinforcing rod (19) at the top of the wire binding device (15), and the bottom of the protective box (1) is fixedly provided with a protective plate (20).

5. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 4, wherein: the front side and the rear side of the bottom of the protection plate (20) are fixedly provided with a bottom plate (21), and two sides of the surface of the bottom plate (21) are fixedly provided with bonding sheets (22).

6. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 1, wherein: the protection door (23) is movably mounted on two sides of the front face of the protection box (1), and a connecting plate (24) is fixedly connected to the outer side of the driving turntable (6).

7. The novel high-precision fiber bragg grating inclination angle monitoring sensor according to claim 6, wherein: the top of the installation disc (5) is fixedly provided with a baffle plate (25), the tail end of the connecting plate (24) is movably provided with a limiting wheel (26), and the limiting wheel (26) is movably connected with the baffle plate (25).