CN210604760U

CN210604760U - Optical fiber current sensor with protective housing

Info

Publication number: CN210604760U
Application number: CN201921003641.7U
Authority: CN
Inventors: 杨明青; 李纯朴; 聂佳佳
Original assignee: Hubei Xundi Science & Technology Co ltd
Current assignee: Hubei Xundi Science & Technology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-22
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses an optic fibre current sensor with protective housing, which comprises a housin, be equipped with first threaded rod in the casing, the one end of first threaded rod is connected with the inner wall rotation of casing, the other end of first threaded rod runs through the inner wall and the fixedly connected with commentaries on classics piece of casing, the threaded sleeve is equipped with two movable blocks, two on the lateral wall that first threaded rod is located the casing the intraoral screw thread of movable block is opposite setting, two all rotate on the movable block and be connected with the bracing piece, the top of first threaded rod is equipped with the backup pad, two the one end that the movable block was kept away from to the bracing piece all rotates with the backup pad to be connected. The utility model discloses a setting up of many places fixed establishment makes the stability of sensor higher and thermal diffusivity strong, avoids high temperature to cause the damage to the radiator, and the protectiveness is high.

Description

Optical fiber current sensor with protective housing

Technical Field

The utility model relates to a relevant goods field of optic fibre specifically is an optic fibre current sensor with protective housing.

Background

The optical fiber current sensor has the advantages of small volume, light weight, no magnetic saturation ferromagnetic resonance problem, simple insulation, large dynamic range and obvious output digitization, and must gradually replace the traditional current sensor to become one of the most main means for monitoring a power grid, wherein the all-optical fiber current sensor is a focus of attention in the field and is also the inevitable development direction of the optical fiber current sensor.

But the inside structure of current optic fibre current sensor that has the protective housing is comparatively simple, and stability is relatively poor when possessing the guard action, leads to the sensor to produce in the casing easily and rocks, has certain defectiveness.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optic fibre current sensor with protective housing to it is comparatively simple to provide the structure of current inside in solving above-mentioned background art, and stability is relatively poor when possessing the guard action, leads to the sensor to produce in the casing easily and rocks the problem.

In order to achieve the above object, the utility model provides a following technical scheme: an optical fiber current sensor with a protective shell comprises a shell, wherein a first threaded rod is arranged in the shell, one end of the first threaded rod is rotatably connected with the inner wall of the shell, the other end of the first threaded rod penetrates through the inner wall of the shell and is fixedly connected with a rotating block, two moving blocks are sleeved on the side wall, located in the shell, of the first threaded rod in a threaded manner, threads in the two moving block threads are oppositely arranged, two moving blocks are rotatably connected with supporting rods, a supporting plate is arranged above the first threaded rod, one ends, far away from the moving blocks, of the two supporting rods are rotatably connected with the supporting plate, cavities are formed in two sides above the shell, a second threaded rod is arranged in each cavity, one end of the second threaded rod is rotatably connected with the inner wall of each cavity, and the other end of the second threaded rod penetrates through the inner, one of the extension of second threaded rod serves fixedly connected with knob, the fixed plate has been cup jointed to the screw thread on the lateral wall that the second threaded rod is located the cavity, the one end that the second threaded rod was kept away from to the fixed plate runs through the inner wall of cavity and extends in to the casing, be equipped with the sensor body in the backup pad, two one side that the fixed plate is relative all offsets with the sensor body, the both ends of backup pad are all slided and are inserted and are equipped with the gag lever post, the inner wall fixed connection of gag lever post and casing, one side of casing is equipped with the vent, fixedly connected with dust screen in the vent, one side that the dust screen was kept away from to the casing is equipped with the wire hole, the below of wire hole is equipped with multichannel wind groove, the upper end of casing is equipped with places the mouth.

Preferably, two all the cover is equipped with first spring on the gag lever post, the both ends of first spring respectively with backup pad and shells inner wall fixed connection.

Preferably, a plurality of anti-skidding insections are arranged on the rotating block.

Preferably, the bottom in the casing is provided with a groove, the groove is connected with a plurality of balls in a rotating manner, and the edges of the balls are all in contact with the moving block.

Preferably, a second spring is sleeved on the first threaded rod, and two ends of the second spring are fixedly connected with the two moving blocks respectively.

Preferably, one side of each fixing plate opposite to the other side of each fixing plate is fixedly connected with a rubber pad.

Preferably, the bottom ends of the two limiting rods are fixedly connected with anti-falling blocks.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the optical fiber current sensor with the protective shell is used and installed, a user can draw out the transparent plate, then place the sensor body on the supporting plate through the placing opening, then rotate the rotating block to drive the first threaded rod to rotate, and when the first threaded rod rotates, the two moving blocks move relatively under the arrangement of opposite internal threads;

2. at this moment, the two moving blocks push the supporting plate to move upwards by utilizing the connecting rod, the transformer body can abut against the inner top of the shell at this moment, the second threaded rod is rotated again to drive the fixing plate to move upwards, the fixing plate abuts against the sensor body to fix the sensor body, and meanwhile, the vent is arranged on the shell, so that the sensor body can be effectively cooled inside the shell during working. The utility model discloses a setting up of many places fixed establishment makes the stability of sensor higher and thermal diffusivity strong, avoids high temperature to cause the damage to the radiator, and the protectiveness is high.

Drawings

Fig. 1 is a schematic structural diagram of an optical fiber current sensor with a protective casing according to the present invention;

fig. 2 is an enlarged view of a position a of the optical fiber current sensor with the protective shell according to the present invention;

fig. 3 is the utility model discloses a fiber current sensor's casing looks sideways at structural schematic with protective housing.

In the figure: 1-shell, 2-first threaded rod, 3-rotating block, 4-moving block, 5-supporting rod, 6-supporting plate, 7-second threaded rod, 8-fixing plate, 9-sensor body, 10-limiting rod, 11-dust screen, 12-wire outlet, 13-ball, 14-second spring, 15-rubber pad, 16-anti-drop block, 17-first spring and 18-transparent 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.

Referring to fig. 1-3, the present invention provides an embodiment: an optical fiber current sensor with a protective shell comprises a shell 1, wherein a first threaded rod 2 is arranged in the shell 1 and used for driving a movable block 4 to move, one end of the first threaded rod 2 is rotatably connected with the inner wall of the shell 1, the other end of the first threaded rod 2 penetrates through the inner wall of the shell 1 and is fixedly connected with a rotating block 3 and used for rotating the first threaded rod 2, two movable blocks 4 are sleeved on the side wall of the first threaded rod 2, which is positioned in the shell 1, through threads and used for driving supporting rods 5 to move, the threads in the threads of the two movable blocks 4 are oppositely arranged, supporting rods 5 are rotatably connected on the two movable blocks 4 and used for supporting a supporting plate 6 to move, a supporting plate 6 is arranged above the first threaded rod 2 and used for supporting a sensor body 9, one ends, far away from the movable blocks 4, of the two supporting rods 5, a second threaded rod 7 is arranged in the cavity and used for driving a fixing plate 8 to move, one end of the second threaded rod 7 is rotatably connected with the inner wall of the cavity, the other end of the second threaded rod 7 penetrates through the inner wall of the cavity and extends outwards, a knob is fixedly connected to the extending end of the second threaded rod 7, a fixing plate 8 is sleeved on the side wall of the cavity of the second threaded rod 7 in a threaded manner and used for fixing a sensor body 9, one end, far away from the second threaded rod 7, of the fixing plate 8 penetrates through the inner wall of the cavity and extends towards the inside of the shell 1, the sensor body 9 is arranged on the supporting plate 6, one side, opposite to the two fixing plates 8, abuts against the sensor body 9, limiting rods 10 are inserted at two ends of the supporting plate 6 in a sliding manner and used for supporting the supporting plate 6 to improve stability, the limiting rods 10 are fixedly connected with the inner, the dust-proof sensor comprises a shell 1, a dust screen 11, a wire outlet hole 12, a connecting wire, a plurality of air grooves, a plurality of sliding grooves, a placing opening, a sliding groove 18, a transparent plate 18 and a protective performance, wherein the dust screen 11 is arranged on the shell 1, the connecting wire is used for guiding out the sensor body 9, the multi-air grooves are formed below the wire outlet hole 12, the air circulation is conducted inside the shell 1, the upper end of the shell 1 is provided with the placing opening, the sliding groove is formed in the placing opening, and the transparent plate 18 is.

Further, all overlap on two gag lever posts 10 and be equipped with first spring 17, first spring 17's both ends respectively with

backup pad

6 and 1 inner wall fixed connection of casing, the cushion effect when increasing backup pad 6 and removing.

Furthermore, the rotating block 3 is provided with a plurality of anti-skidding insections, so that the friction force of the rotating block 3 is increased for convenient rotation.

Further, the interior bottom of casing 1 is equipped with the recess, and the recess internal rotation is connected with a plurality of balls 13, and the edge of a plurality of balls 13 all contacts with movable block 4, reduces the frictional force when movable block 4 removes.

Further, the first threaded rod 2 is sleeved with a second spring 14, two ends of the second spring 14 are fixedly connected with the two moving blocks 4 respectively, and the shock absorption performance of the supporting plate 6 in stress is improved.

Further, two equal fixedly connected with rubber pads 15 of the relative one side of fixed plate 8 reduce the frictional force when fixed to sensor body 9.

Further, the bottom ends of the two limiting rods 10 are fixedly connected with anti-falling blocks 16, so that the supporting plate 6 is prevented from falling off from the limiting rods 10.

The working principle is as follows: the user can extract transparent plate 18 when using the installation, then place sensor body 9 in backup pad 6 through placing the mouth, then rotate and change piece 3 and drive first threaded rod 2 and rotate, in first threaded rod 2 pivoted, two movable blocks 4 move relatively under opposite internal screw thread setting, two movable blocks 4 will utilize connecting rod 5 to promote backup pad 6 rebound this moment, transformer body 9 can offset the interior top of casing 1 this moment, rotate second threaded rod 7 again and drive fixed plate 8 and remove at last, fixed plate 8 will support sensor body 9 and fix sensor body 9, it can effectively dispel the heat to sensor body 9 to set up the vent on casing 1 simultaneously at the inside of during operation casing 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an optic fibre current sensor with protective housing, includes casing (1), its characterized in that: a first threaded rod (2) is arranged in the shell (1), one end of the first threaded rod (2) is rotatably connected with the inner wall of the shell (1), the other end of the first threaded rod (2) penetrates through the inner wall of the shell (1) and is fixedly connected with a rotating block (3), two moving blocks (4) are sleeved on the side wall of the first threaded rod (2) in the shell (1) in a threaded manner, the threads in the threads of the two moving blocks (4) are oppositely arranged, supporting rods (5) are rotatably connected to the two moving blocks (4), a supporting plate (6) is arranged above the first threaded rod (2), one ends of the two supporting rods (5) far away from the moving blocks (4) are rotatably connected with the supporting plate (6), cavities are arranged on two sides above the shell (1), second threaded rods (7) are arranged in the cavities, one ends of the second threaded rods (7) are rotatably connected with the inner walls of the cavities, the other end of the second threaded rod (7) penetrates through the inner wall of the cavity and extends outwards, one end of the second threaded rod (7) extending is fixedly connected with a knob, the second threaded rod (7) is positioned on the side wall in the cavity, a fixing plate (8) is sleeved on the side wall in the cavity in a threaded manner, one end, far away from the second threaded rod (7), of the fixing plate (8) penetrates through the inner wall of the cavity and extends inwards to the shell (1), a sensor body (9) is arranged on the supporting plate (6), one side, opposite to the two fixing plates (8), of each fixing plate is abutted against the sensor body (9), limiting rods (10) are inserted into the two ends of the supporting plate (6) in a sliding manner, the limiting rods (10) are fixedly connected with the inner wall of the shell (1), a vent opening is arranged on one side of the shell (1), a dust screen (11) is fixedly connected in the vent opening, a wire outlet (12), the below of wire hole (12) is equipped with multichannel wind groove, the upper end of casing is equipped with places the mouth, it is equipped with the spout to place the mouth in, it is equipped with transparent plate (18) to slide to insert in the spout.

2. The fiber optic current sensor with protective casing of claim 1, wherein: two all the cover is equipped with first spring (17) on gag lever post (10), the both ends of first spring (17) respectively with backup pad (6) and casing (1) inner wall fixed connection.

3. The fiber optic current sensor with protective casing of claim 1, wherein: and a plurality of anti-skidding insections are arranged on the rotating block (3).

4. The fiber optic current sensor with protective casing of claim 1, wherein: the inner bottom of the shell (1) is provided with a groove, a plurality of balls (13) are connected in the groove in a rotating mode, and the edges of the balls (13) are in contact with the moving block (4).

5. The fiber optic current sensor with protective casing of claim 1, wherein: the first threaded rod (2) is sleeved with a second spring (14), and two ends of the second spring (14) are fixedly connected with the two moving blocks (4) respectively.

6. The fiber optic current sensor with protective casing of claim 1, wherein: two the equal fixedly connected with rubber pad (15) of one side that fixed plate (8) are relative.

7. The fiber optic current sensor with protective casing of claim 1, wherein: the bottom ends of the two limiting rods (10) are fixedly connected with anti-falling blocks (16).