CN214040446U

CN214040446U - High-precision fiber grating pressure sensor

Info

Publication number: CN214040446U
Application number: CN202022896303.XU
Authority: CN
Inventors: 孙昀
Original assignee: Zhenjiang Zhongsheng Information Technology Co ltd
Current assignee: Zhenjiang Zhongsheng Information Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-08-24
Anticipated expiration: 2030-12-04

Abstract

The utility model belongs to the technical field of pressure sensor, especially, be a high accuracy fiber grating pressure sensor, comprising a base plate, the top fixedly connected with arc piece of bottom plate, two the surface swing joint of arc piece has the pressure sensor body, the top fixedly connected with riser of arc piece, two rotate between the riser and be connected with No. two arc pieces, the top fixedly connected with fixed block of No. two arc pieces, the top swing joint of fixed block has the inserted block No. one. The utility model discloses a cooperate between fixed block, a spring, roller pole, No. two inserted blocks, a slot and the slope and solved current high accuracy fiber grating pressure sensor inconvenient problem when the installation, current pressure sensor all bonds with glue when the installation, and is very insecure, this novel device can be fine install and fix it to pressure sensor's life has been improved greatly, the saving cost.

Description

High-precision fiber grating pressure sensor

Technical Field

The utility model relates to a pressure sensor technical field specifically is a high accuracy fiber grating pressure sensor.

Background

The fiber grating sensor belongs to one type of fiber sensors, the sensing process based on the fiber grating obtains sensing information by modulating fiber Bragg wavelength through external physical parameters, and the fiber grating sensor is a wavelength modulation type fiber sensor and can realize direct measurement of physical quantities such as temperature, strain and the like. The wavelength of the fiber grating is sensitive to temperature and strain at the same time, namely the temperature and the strain simultaneously cause the coupling wavelength of the fiber grating to move, so that the temperature and the strain cannot be distinguished by measuring the coupling wavelength movement of the fiber grating. Therefore, the problem of cross sensitivity is solved, and the realization of the differential measurement of temperature and stress is the premise of the practical application of the sensor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high accuracy fiber grating pressure sensor has solved current high accuracy fiber grating pressure sensor inconvenient problem when the installation.

The second technical proposal.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision fiber grating pressure sensor comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a first arc-shaped block, the surfaces of the first arc-shaped blocks are movably connected with a pressure sensor body, the top of the first arc-shaped block is fixedly connected with a vertical plate, a second arc-shaped block is rotatably connected between the two vertical plates, the top of the second arc-shaped block is fixedly connected with a fixed block, the top of the fixed block is movably connected with a first inserting block, the top of the first inserting block is fixedly connected with a limiting block, the outer surface of the first inserting block is fixedly connected with a baffle plate, the outer surface of the first insert block is fixedly connected with an arc-shaped baffle plate, the baffle plate is fixedly connected with the arc-shaped baffle plate, a spring sleeved on the outer surface of the first inserting block is arranged between the baffle and the fixing block, and a disc is fixedly connected to the surface of the pressure sensor body.

As a preferred technical scheme of the utility model, No. two diaphragm of back fixedly connected with of arc piece, No. two diaphragms of back fixedly connected with of arc piece, the fixed surface of a diaphragm is connected with the slide bar, the surface sliding connection of slide bar has the movable plate, the one end fixedly connected with fixed plate of slide bar, be provided with the cover between movable plate and the fixed plate and establish No. two springs on the slide bar surface.

As a preferred technical scheme of the utility model, a slot has been seted up on the surface of movable plate, the kerve has been seted up to one side of movable plate, the slope has been seted up to the bottom of movable plate, the round hole has been seted up on the surface of movable plate, the inner wall sliding connection of slide bar and round hole.

As a preferred technical scheme of the utility model, No. two inserted blocks of fixed surface of No. two diaphragms is connected with, the fixed surface of No. two inserted blocks is connected with the semicircle board, rotates between two institute's semicircle boards and is connected with the roller pole, roller pole and slope movable contact, No. two inserted blocks are pegged graft mutually with a slot.

As a preferred technical scheme of the utility model, No. two slots have been seted up on the surface of disc, the inner wall sliding connection of an inserted block and No. two slots.

As an optimized technical scheme of the utility model, the top of bottom plate is seted up threaded hole.

(III) advantageous effects

Compared with the prior art, the utility model provides a high accuracy fiber grating pressure sensor possesses following beneficial effect:

this high accuracy fiber grating pressure sensor, through the fixed block, an inserted block, a spring, the roller pole, No. two inserted blocks, cooperate between slot and the slope and solved current high accuracy fiber grating pressure sensor inconvenient problem when the installation, current pressure sensor mostly bonds with glue when the installation is all, very insecure, this novel device can be fine install and fix it to pressure sensor's life has been improved greatly, practice thrift the cost.

Drawings

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

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 1;

FIG. 4 is an enlarged view of the portion B in FIG. 1;

FIG. 5 is a schematic diagram of the structure of the movable plate of the present invention;

FIG. 6 is a schematic view of the second cross plate structure of the present invention;

fig. 7 is a schematic view of the disc structure of the present invention.

In the figure: 1. a base plate; 2. a first arc-shaped block; 3. a vertical plate; 4. a second arc-shaped block; 5. a pressure sensor body; 6. a disc; 7. a threaded hole; 8. an arc-shaped baffle plate; 9. a fixed block; 10. inserting a block I; 11. a limiting block; 12. a first spring; 13. a fixing plate; 14. a slide bar; 15. a second spring; 16. a first transverse plate; 17. a second transverse plate; 18. moving the plate; 19. inserting a block II; 20. a roll bar; 21. a semicircular plate; 22. a first slot; 23. a slope; 24. groove drawing; 25. a circular hole; 26. a second slot; 27. and a baffle plate.

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.

Examples

Referring to fig. 1-7, the present invention provides the following technical solutions: the utility model provides a high accuracy fiber grating pressure sensor, comprising a base plate 1, arc piece 2 of top fixedly connected with of bottom plate 1, the surperficial swing joint of two arc pieces 2 has pressure sensor body 5, the top fixedly connected with riser 3 of arc piece 2, it is connected with No. two arc pieces 4 to rotate between two risers 3, the top fixedly connected with fixed block 9 of No. two arc pieces 4, the top swing joint of fixed block 9 has No. one inserted block 10, the top fixedly connected with stopper 11 of an inserted block 10, the external fixed surface of an inserted block 10 is connected with baffle 27, the external fixed surface of an inserted block 10 is connected with cowl 8,

baffle

27 and 8 fixed connection of cowl, be provided with between baffle 27 and the fixed block 9 and establish a spring 12 on the surface of an inserted block 10, the fixed surface of pressure sensor body 5 is connected with disc 6.

In this embodiment, the setting of cowl 8 can be effectual carry on spacingly to disc 6, prevents its skew.

Specifically, the back of the second arc-shaped block 4 is fixedly connected with a first transverse plate 16, the back of the first arc-shaped block 2 is fixedly connected with a second transverse plate 17, the surface of the first transverse plate 16 is fixedly connected with a slide bar 14, the outer surface of the slide bar 14 is slidably connected with a movable plate 18, one end of the slide bar 14 is fixedly connected with a fixed plate 13, and a second spring 15 which is sleeved on the outer surface of the slide bar 14 is arranged between the movable plate 18 and the fixed plate 13.

In this embodiment, the second spring 15 is arranged to fix the moving plate 18, and the loose connection is not unstable under the action of the second spring 15.

Specifically, the first slot 22 is formed on the surface of the moving plate 18, the pull groove 24 is formed on one side of the moving plate 18, the slope 23 is formed at the bottom of the moving plate 18, the circular hole 25 is formed on the surface of the moving plate 18, and the slide bar 14 is slidably connected with the inner wall of the circular hole 25.

In this embodiment, the slope 23 is provided to effectively enable the roller rod 20 to rotate.

Specifically, No. two inserted blocks 19 are fixedly connected to the surface of the second transverse plate 17, semicircular plates 21 are fixedly connected to the surface of the second inserted blocks 19, a roller rod 20 is rotatably connected between the two semicircular plates 21, the roller rod 20 is in movable contact with a slope 23, and the second inserted blocks 19 are inserted into a first slot 22.

In this embodiment, the second insertion block 19 is inserted into the first insertion slot 22 to effectively fix the moving plate 18.

Specifically, the surface of the disc 6 is provided with a second slot 26, and the first insert block 10 is slidably connected with the inner wall of the second slot 26.

In this embodiment, the sliding connection between the first insertion block 10 and the inner wall of the second insertion groove 26 further limits the disc 6 to prevent it from rotating.

Specifically, the top of the bottom plate 1 is provided with a threaded hole 7.

In this embodiment, the setting of screw hole 7 is convenient to install bottom plate 1.

The utility model discloses a theory of operation and use flow: when the pressure sensor body 5 needs to be replaced, at the moment, the limiting block 11 is pulled, the limiting block 11 drives the first inserting block 10 to move, the first inserting block 10 drives the arc-shaped baffle plate 8 and the baffle plate 27 to move and compresses the first spring 12, the first inserting block 10 is separated from the second inserting groove 26, then the fixing plate 13 is held, the pull groove 24 is pulled by retracting, the moving plate 18 is pulled and the second spring 15 is compressed, the moving plate 18 is separated from the second inserting block 19, then the fixing plate 13 is rotated, the fixing plate 13 drives the sliding rod 14 to rotate, the sliding rod 14 drives the first transverse plate 16 to rotate, the first transverse plate 16 drives the second arc-shaped block 4 to rotate, the second arc-shaped block 4 is separated from the first arc-shaped block 2, then the pressure sensor body 5 is replaced and installed, and therefore the service life of the pressure sensor is greatly prolonged, and the cost is saved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high accuracy fiber grating pressure sensor, includes bottom plate (1), its characterized in that: the pressure sensor is characterized in that a first arc-shaped block (2) is fixedly connected to the top of the bottom plate (1), a pressure sensor body (5) is movably connected to the surface of the first arc-shaped block (2), a vertical plate (3) is fixedly connected to the top of the first arc-shaped block (2), a second arc-shaped block (4) is rotatably connected between the two vertical plates (3), a fixed block (9) is fixedly connected to the top of the second arc-shaped block (4), a first insert block (10) is movably connected to the top of the fixed block (9), a limiting block (11) is fixedly connected to the top of the first insert block (10), a baffle (27) is fixedly connected to the outer surface of the first insert block (10), an arc-shaped baffle (8) is fixedly connected to the outer surface of the first insert block (10), the baffle (27) is fixedly connected to the arc-shaped baffle (8), a first spring (12) sleeved on the outer surface of the first insert block (10) is arranged between the baffle (27) and the fixed block (9), and a disc (6) is fixedly connected to the surface of the pressure sensor body (5).

2. A high precision fiber grating pressure sensor according to claim 1, wherein: no. two diaphragm (16) of back fixedly connected with of arc piece (4), No. two diaphragm (17) of back fixedly connected with of arc piece (2), the fixed surface of a diaphragm (16) is connected with slide bar (14), the surface sliding connection of slide bar (14) has movable plate (18), the one end fixedly connected with fixed plate (13) of slide bar (14), be provided with between movable plate (18) and fixed plate (13) and establish No. two spring (15) on slide bar (14) surface at the cover.

3. A high precision fiber grating pressure sensor according to claim 2, wherein: the surface of the moving plate (18) is provided with a first slot (22), one side of the moving plate (18) is provided with a pull groove (24), the bottom of the moving plate (18) is provided with a slope (23), the surface of the moving plate (18) is provided with a round hole (25), and the sliding rod (14) is in sliding connection with the inner wall of the round hole (25).

4. A high precision fiber grating pressure sensor according to claim 3, wherein: no. two inserted blocks (19) of fixed surface of diaphragm (17), the fixed surface of No. two inserted blocks (19) is connected with semicircle board (21), rotates between two semicircle boards (21) and is connected with roller pole (20), roller pole (20) and slope (23) movable contact, No. two inserted blocks (19) are pegged graft mutually with slot (22).

5. A high precision fiber grating pressure sensor according to claim 1, wherein: no. two slots (26) are formed in the surface of the disc (6), and the first inserting block (10) is connected with the inner walls of the No. two slots (26) in a sliding mode.

6. A high precision fiber grating pressure sensor according to claim 1, wherein: the top of the bottom plate (1) is provided with a threaded hole (7).