阅读说明：本技术 一种用于周界安防的光纤传感器 (Optical fiber sensor for perimeter security ) 是由 刘晓航 周孟辉 于 2019-04-23 设计创作，主要内容包括：本发明公开一种用于周界安防的光纤传感器,包括底板、外壳体、球形内壳体和光纤传感器本体,所述外壳体内设置有与球形内壳体相配对的关节腔,所述球形内壳体安装于关节腔内并通过关节腔与外壳体活动连接,所述球形内壳体上设置有与光纤传感器本体相配对的安装孔,所述光纤传感器本体安装于安装孔内,所述外壳体上设置有连接孔,所述连接孔与关节腔相连通,所述底板上设置有电动转盘和复位弹簧,所述电动转盘中部设置有穿孔,所述电动转盘和复位弹簧均插入连接孔内,所述复位弹簧一端穿过穿孔并与底板固定连接,所述复位弹簧另一端与球形内壳体固定连接,所述球形内壳体上设置有支撑臂；该用于周界安防的光纤传感器具有良好的活动能力。(The invention discloses an optical fiber sensor for perimeter security, which comprises a bottom plate, an outer shell, a spherical inner shell and an optical fiber sensor body, wherein a joint cavity matched with the spherical inner shell is arranged in the outer shell, the spherical inner shell is arranged in the joint cavity and is movably connected with the outer shell through the joint cavity, an installation hole matched with the optical fiber sensor body is arranged on the spherical inner shell, the optical fiber sensor body is arranged in the installation hole, a connecting hole is arranged on the outer shell and is communicated with the joint cavity, an electric rotating disc and a reset spring are arranged on the bottom plate, a through hole is arranged in the middle of the electric rotating disc, the electric rotating disc and the reset spring are inserted into the connecting hole, one end of the reset spring penetrates through the through hole and is fixedly connected with the bottom plate, the other end of the, the spherical inner shell is provided with a supporting arm; the optical fiber sensor for perimeter security has good mobility.)

1. A fiber sensor for perimeter security characterized in that: the optical fiber sensor comprises a bottom plate, an outer shell, a spherical inner shell and an optical fiber sensor body, wherein a joint cavity matched with the spherical inner shell is arranged in the outer shell, the spherical inner shell is arranged in the joint cavity and movably connected with the outer shell through the joint cavity, an installation hole matched with the optical fiber sensor body is formed in the spherical inner shell, the optical fiber sensor body is arranged in the installation hole, a connection hole is formed in the outer shell and communicated with the joint cavity, an electric turntable and a reset spring are arranged on the bottom plate, a perforation is formed in the middle of the electric turntable, the electric turntable and the reset spring are inserted into the connection hole, one end of the reset spring penetrates through the perforation and is fixedly connected with the bottom plate, the other end of the reset spring is fixedly connected with the spherical inner shell, a support arm is arranged on the spherical inner shell, the support, the edge of the electric turntable is provided with a supporting block for supporting the supporting arm to enable the spherical inner shell to rotate.

2. The optical fiber sensor for perimeter security according to claim 1, wherein: the bottom of spherical interior casing is provided with first walking hole, connecting hole and mounting hole all are linked together with first walking hole, be provided with the second on the bottom plate and walk the hole, perforation and mounting hole all are walked the hole with the second and are linked together.

3. The optical fiber sensor for perimeter security according to claim 2, characterized in that: the support arm includes first arm and second arm, all be provided with the pinhole on first arm and the second arm, be provided with the connecting pin between first arm and the second arm, the connecting pin both ends all are provided with coil spring, the coil spring at connecting pin both ends inserts the pinhole of first arm and second arm respectively and fixes.

4. The optical fiber sensor for perimeter security according to claim 3, wherein: the shell body includes half left shell and half right shell, the inboard of half left shell and half right shell all is provided with the spherical groove that mutually supports and form the joint chamber, half left shell and half right shell mortise-tenon joint, half left shell and half right shell all with bottom plate mortise-tenon joint.

5. The optical fiber sensor for perimeter security according to claim 4, wherein: half casing and hollow lower half casing on the spherical inner casing contains the cavity, half casing and hollow lower half casing threaded connection on the hollow, half casing and the setting of half arm formula as an organic whole under the hollow.

6. The optical fiber sensor for perimeter security according to claim 5, wherein: the support arm is provided with 4, the support arm is annular array distribution.

7. The optical fiber sensor for perimeter security according to claim 6, wherein: the bottom surface of the supporting block is adhered to the electric turntable, one side, close to the middle part of the electric turntable, of the supporting block is provided with a baffle for preventing the supporting arm from falling from the supporting block, and the baffle is arc-shaped.

8. The optical fiber sensor for perimeter security according to claim 7, wherein: the fiber sensor body is packaged in the hollow upper half shell.

Technical Field

The invention relates to an optical fiber sensor for perimeter security.

Background

The basic working principle of the optical fiber sensor is that an optical signal from a light source is sent to a modulator through an optical fiber, so that after a parameter to be measured and light entering a modulation area interact, the optical property of the light is changed to become a modulated signal source, the modulated signal source is sent to an optical detector through the optical fiber, and the parameter to be measured is obtained after demodulation.

The sensor is developed towards the direction of sensitivity, accuracy, strong adaptability, smallness and intellectualization. In this process, fiber optic sensors are favored as new members of this family of sensors. The optical fiber has many excellent properties, such as electromagnetic and atomic radiation interference resistance, thin diameter, soft quality and light weight; insulating, non-inductive electrical performance; the water-resistant, high-temperature-resistant and corrosion-resistant composite material has the chemical properties of water resistance, high temperature resistance, corrosion resistance and the like, can play the role of human eyes in places which can not be reached by people or regions which are harmful to people, can exceed the physiological limit of people, and can receive external information which can not be felt by the sense of people.

The existing optical fiber sensor for perimeter security does not have the activity capability after being installed, and the optical fiber sensor has higher possibility of avoiding the detection of the sensor for illegal personnel who know the terrain or the arrangement condition of the sensor in advance.

Disclosure of Invention

The invention aims to provide an optical fiber sensor with good activity capability for perimeter security protection.

In order to solve the problems, the invention adopts the following technical scheme:

an optical fiber sensor for perimeter security comprises a bottom plate, an outer shell, a spherical inner shell and an optical fiber sensor body, wherein a joint cavity matched with the spherical inner shell is arranged in the outer shell, the spherical inner shell is arranged in the joint cavity and movably connected with the outer shell through the joint cavity, an installation hole matched with the optical fiber sensor body is formed in the spherical inner shell, the optical fiber sensor body is arranged in the installation hole, a connection hole is formed in the outer shell and communicated with the joint cavity, an electric rotating disc and a reset spring are arranged on the bottom plate, a perforation hole is formed in the middle of the electric rotating disc, the electric rotating disc and the reset spring are inserted into the connection hole, one end of the reset spring penetrates through the perforation hole and is fixedly connected with the bottom plate, the other end of the reset spring is fixedly connected with the spherical inner shell, the supporting arm is inserted into the mounting hole and suspended right above the electric turntable, and a supporting block used for supporting the supporting arm to enable the spherical inner shell to rotate is arranged at the edge of the electric turntable.

As preferred, the bottom of spherical interior casing is provided with first walking hole, connecting hole and mounting hole all are linked together with first walking hole, be provided with the second on the bottom plate and walk the hole, perforation and mounting hole all walk the hole with the second and be linked together, walk the hole through being provided with first walking hole and second, can the person of facilitating the use wiring, promote the installation convenience.

As preferred, the support arm includes first arm and second arm, all be provided with the pinhole on first arm and the second arm, be provided with the connecting pin between first arm and the second arm, the connecting pin both ends all are provided with coil spring, the coil spring at connecting pin both ends inserts the pinhole of first arm and second arm respectively and fixes, and the support arm possesses flexible and buffer function, is favorable to spherical interior casing to rotate.

As preferred, the shell body includes half left shell and half right shell, the inboard of half left shell and half right shell all is provided with the spherical groove that mutually supports and form the joint chamber, half left shell and half right shell mortise-and-tenon joint, half left shell and half right shell all with bottom plate mortise-and-tenon joint, half left shell and half right shell have adopted mortise-and-tenon joint's mode, combine mutually, support each other, and the atress performance is stable, can play good stability, and the dismouting convenience is good simultaneously.

Preferably, the spherical inner shell comprises a hollow upper half shell and a hollow lower half shell, the hollow upper half shell and the hollow lower half shell are in threaded connection, the hollow lower half shell and the upper half arm are integrally arranged, and the spherical inner shell can be conveniently connected and assembled by adopting a threaded connection structure.

Preferably, the number of the support arms is 4, the support arms are distributed in an annular array, the support arms are uniformly distributed, the spherical inner shell is provided with four rotating directions, and the detection angle of the optical fiber sensor body can be continuously changed during working.

Preferably, the bottom surface of the supporting block is bonded with the electric turntable, one side, close to the middle part of the electric turntable, of the supporting block is provided with a baffle for preventing the supporting arm from falling from the supporting block, the baffle is in an arc shape, the phenomenon of support arm dislocation is reduced by the baffle for preventing the supporting arm from falling from the supporting block, and the detection angle of the optical fiber sensor body can be changed stably.

Preferably, the optical fiber sensor body is packaged in the hollow upper half shell, and the packaged structure is adopted, so that the optical fiber sensor body has good stability.

The invention has the beneficial effects that: the structure of shell body and spherical interior casing through having used for joint bearing, good mobility has after the installation of spherical interior casing, electric turntable starts the back, prop up the piece and prop up the support arm and make spherical interior casing take place to rotate, thereby realize the effect of detecting angle constantly changing, it is good to survey the flexibility, furthermore, the bottom of spherical interior casing is provided with first line hole of walking, connecting hole and mounting hole all walk the line hole with first and are linked together, it walks the line hole to be provided with the second on the bottom plate, perforation and mounting hole all walk the line hole with the second and are linked together, walk the line hole through being provided with first line hole of walking and second, can the person of facilitating the use wiring, promote the installation convenience. The support arm includes first arm and second arm, all is provided with the pinhole on first arm and the second arm, is provided with the connecting pin between first arm and the second arm, and the connecting pin both ends all are provided with coil spring, and the coil spring at connecting pin both ends inserts respectively in the pinhole of first arm and second arm and fixed, and the support arm possesses flexible and buffer function, is favorable to spherical interior casing to rotate. The shell body includes half shell on the left side and half shell on the right side, and the inboard of half shell on the left side and half shell on the right side all is provided with the spherical groove that mutually supports and form the joint chamber, half shell on the left side and half shell on the right side mortise-tenon joint, half shell on the left side and half shell on the right side all with bottom plate mortise-tenon joint, half shell on the left side and half shell on the right side have adopted mortise-tenon joint's mode, combine mutually, support mutually, the atress stable performance, can play good stability, the dismouting convenience is good simultaneously. Half casing and hollow lower half casing threaded connection about the spherical interior casing contains hollow, half casing and hollow lower half casing on the hollow, half casing and first arm formula as an organic whole setting under the hollow, have adopted threaded connection's structure, can connect the equipment convenience. The support arm is provided with 4, and the support arm is annular array and distributes, and the support arm distributes evenly for spherical interior casing has four pivoted directions, and the during operation can make the detection angle of optical fiber sensor body change can be continuous. The bottom surface of the supporting block is bonded with the electric turntable, one side of the supporting block, which is close to the middle part of the electric turntable, is provided with a baffle for preventing the supporting arm from falling from the supporting block, the baffle is arranged in an arc shape, the phenomenon of support arm dislocation is reduced by the baffle for preventing the supporting arm from falling from the supporting block, and the stable detection angle of the optical fiber sensor body can be changed. The optical fiber sensor body is packaged in the hollow upper half shell, a packaged structure is adopted, and the optical fiber sensor body has good stability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view of an optical fiber sensor for perimeter security according to the present invention.

Fig. 2 is a perspective view of an outer housing of an optical fiber sensor for perimeter security according to the present invention.

Fig. 3 is a perspective view of a spherical inner housing of an optical fiber sensor for perimeter security according to the present invention.

FIG. 4 is a schematic diagram of the connection between the spherical inner housing and the bottom plate of the optical fiber sensor for perimeter security according to the present invention.

Fig. 5 is a bottom view of a spherical inner housing of an optical fiber sensor for perimeter security according to the present invention.

FIG. 6 is a cross-sectional view of a support arm of a fiber sensor for perimeter security of the present invention.

FIG. 7 is a bottom view of the lower arm half of a fiber sensor for perimeter security of the present invention.

Fig. 8 is a top view of an electric rotary table of an optical fiber sensor for perimeter security according to the present invention.

In the figure:

1. a base plate; 2. an outer housing; 3. a spherical inner housing; 4. an optical fiber sensor body; 5. a joint cavity; 6. mounting holes; 7. an electric turntable; 8. a return spring; 9. perforating; 10. a support arm; 11. a support block; 12. a first wiring hole; 13. a second wiring hole; 14. an upper half arm; 15. a lower half arm; 16. a connecting pin; 17. a coil spring; 18. a left half shell; 19. a right half shell; 20. a hollow upper half shell; 21. a hollow lower housing half; 22. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a conventional manner such as bolt fixing, pin shaft connecting, adhesive fixing, or rivet fixing, which is commonly used in the prior art, and therefore, the detailed description thereof will not be provided in the examples.