Mining optical fiber shaft deformation sensor

Abstract

The utility model discloses a mine optical fiber shaft deformation sensor which comprises an optical fiber deformation sensor, one end of the bottom of the optical fiber deformation sensor is connected with a connecting assembly, the connecting assembly comprises a sub connecting piece, one side of the sub connecting piece is connected with a female connecting piece in a clamping mode, and a cable is inserted in the surface of the female connecting piece in a penetrating mode. Spring grooves are formed in the two sides of the female connecting piece, sliding blocks are connected to inner cavities of the spring grooves in a sliding mode, clamping blocks are fixedly connected to the bottoms of the sliding blocks, screw rods are rotationally connected to inner cavities of the side grooves, nuts are connected to the surfaces of the screw rods in a threaded mode, and connecting rods are fixedly connected to one sides of the nuts. The female connecting piece and the male connecting piece are connected in a clamped mode, then the rotating button is rotated, the nut and the connecting rod are driven to move through rotation of the rotating button, the sliding block and the clamping block are driven to move through movement of the connecting rod, the clamping block is connected with an inner cavity of the positioning groove in a clamped mode, and then the male connecting piece and the female connecting piece can be fixed in a clamped mode.

Description

Technical Field

[0001] The utility model relates to the technical field of mining sensors, in particular to a mining optical fiber shaft deformation sensor. Background Art

[0002] Mine shafts are a vital component of mines and the vital gateway to production activities. Their deformation and damage not only pose a serious threat to mine safety and production, but also result in significant economic losses. Traditional monitoring methods, such as three-dimensional deformation monitoring, the inverted hammer method, displacement method, compression wood method, and wire baseline method, have been used to monitor shaft deformation and damage during mine operations. In recent years, new monitoring methods have emerged, including embedded sensors and the pressure cell + concrete strain gauge method.

[0003] Existing optical fiber wellbore deformation sensors are mostly connected to cables through soldering. On the one hand, it is not easy to waterproof the connection. On the other hand, if the connection is broken, it also needs to be soldered with professional equipment, which is very inconvenient. Utility Model Content

[0004] The purpose of the present utility model is to provide a fiber optic shaft deformation sensor for mining, so as to solve the problem proposed in the above background technology that the existing fiber optic shaft deformation sensors and cables are mostly connected by soldering. On the one hand, it is not easy to waterproof after the connection, and on the other hand, when the connection is broken, professional equipment is also needed to weld it, which is very inconvenient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mine optical fiber wellbore deformation sensor, comprising an optical fiber deformation sensor, wherein one end of the bottom of the optical fiber deformation sensor is connected to a connecting assembly, the connecting assembly comprises a sub-connector, a female connector is clamped on one side of the sub-connector, a cable is inserted through the surface of the female connector, spring grooves are provided on both sides of the female connector, the inner cavity of the spring groove is slidably connected to a sliding block, the bottom of the sliding block is fixedly connected to a clamping block, the top of the sliding block is fixedly connected to a tightening spring, a side groove is provided on one side of the spring groove, the inner cavity of the side groove is rotatably connected to a screw rod, the surface of the screw rod is threadedly connected to a nut, one side of the nut is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to one side of the sliding block.

[0006] Preferably, the sub-connecting member includes a sub-connecting block, a slot is provided on the front of the sub-connecting block, a water-blocking ring is fixedly connected to the side of the inner cavity of the slot, a sub-connecting terminal is fixedly installed in the middle of the inner cavity of the slot, and positioning grooves are provided on both sides of the inner cavity of the slot. The female connector includes a female connecting block, the water-blocking ring is used to waterproof the sub-connecting terminal, and the positioning groove is used for locking and positioning.

[0007] Preferably, a water-blocking groove is provided on the side of the front face of the female connection block, a female connection terminal is connected to the middle of the front face of the female connection block, and the water-blocking groove cooperates with the water-blocking ring to block water.

[0008] Preferably, the clamping block is a right-angled trapezoidal structure, and the bottom of the clamping block is clamped with the inner cavity of the positioning groove, and the clamping block and the positioning groove are clamped to perform limiting locking.

[0009] Preferably, one end of the screw rod is fixedly connected to a rotating knob through a side groove, and a plurality of anti-slip grooves are provided on the surface of the rotating knob, so that the screw rod is rotated by rotating the rotating knob.

[0010] Preferably, the water blocking groove is engaged with the surface of the slot, and the inner cavity of the female connection terminal is engaged with the inner cavity of the sub-connection terminal, so as to prevent water from entering after the female connection terminal and the sub-connection terminal are connected.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By clamping the female connector and the sub-connector and then turning the rotating knob, the rotation of the rotating knob drives the movement of the nut and the connecting rod, and the movement of the connecting rod drives the movement of the sliding block and the clamping block, so that the clamping block is clamped with the inner cavity of the positioning groove, the sub-connector and the female connector can be clamped and fixed, replacing the traditional welding process and facilitating later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the connection assembly of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the sub-connector of the utility model;

[0016] Figure 4 It is a cross-sectional view of the female connector of the present utility model;

[0017] Figure 5 It is an enlarged view of part A of the present utility model.

[0018] In the figure: 1. Fiber optic deformation sensor; 2. Connecting assembly; 3. Sub-connecting part; 301. Sub-connecting block; 302. Slot; 303. Water blocking ring; 304. Sub-connecting terminal; 305. Positioning groove; 4. Female connecting part; 401. Female connecting block; 402. Water blocking groove; 403. Female connecting terminal; 5. Cable; 6. Spring groove; 7. Sliding block; 8. Card block; 9. Clamping spring; 10. Side groove; 11. Screw rod; 12. Nut; 13. Connecting rod; 14. Rotating button; 15. Anti-slip groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The utility model provides a mine optical fiber shaft deformation sensor, including an optical fiber deformation sensor 1, one end of the bottom of the optical fiber deformation sensor 1 is connected to a connecting assembly 2, the connecting assembly 2 includes a sub-connector 3, a female connector 4 is clamped on one side of the sub-connector 3, a cable 5 is inserted through the surface of the female connector 4, spring grooves 6 are provided on both sides of the female connector 4, a sliding block 7 is slidably connected to the inner cavity of the spring groove 6, a clamping block 8 is fixedly connected to the bottom of the sliding block 7, a tightening spring 9 is fixedly connected to the top of the sliding block 7, a side groove 10 is provided on one side of the spring groove 6, a screw rod 11 is rotatably connected to the inner cavity of the side groove 10, and the surface of the screw rod 11 is threadedly connected It is connected to a nut 12, one side of the nut 12 is fixedly connected to a connecting rod 13, and one end of the connecting rod 13 is fixedly connected to one side of the sliding block 7. By rotating the rotating button 14, the rotation of the rotating button 14 drives the rotation of the screw rod 11, the rotation of the screw rod 11 drives the movement of the nut 12, the movement of the nut 12 drives the movement of the connecting rod 13, the movement of the connecting rod 13 drives the movement of the sliding block 7, and the movement of the sliding block 7 causes the clamping block 8 to move out of the inner cavity of the spring groove 6, so that the clamping block 8 is clamped with the inner cavity of the positioning groove 305, so that the sub-connector 3 and the female connector 4 can be clamped and fixed, replacing the traditional welding process, which is convenient for later maintenance.

[0021] See Figure 1-5 Furthermore, the sub-connector 3 includes a sub-connector block 301, a slot 302 is provided on the front of the sub-connector block 301, a water-blocking ring 303 is fixedly connected to the side of the inner cavity of the slot 302, a sub-connector terminal 304 is fixedly installed in the middle of the inner cavity of the slot 302, and positioning grooves 305 are provided on both sides of the inner cavity of the slot 302. The female connector 4 includes a female connector block 401, a water-blocking groove 402 is provided on the side of the front of the female connector block 401, and a female connector terminal 403 is connected to the middle of the front of the female connector block 401. The water-blocking groove 402 is snap-fitted to the surface of the slot 302, and the female connector terminal 403 is snap-fitted to the inner cavity of the sub-connector terminal 304, for connection and waterproofing between the sub-connector 3 and the female connector 4.

[0022] See Figure 1-5Furthermore, the card block 8 is a right-angled trapezoidal structure, and the bottom of the card block 8 is engaged with the inner cavity of the positioning groove 305, and positioning is performed by engaging the card block 8 with the positioning groove 305.

[0023] See Figure 1-5 Furthermore, one end of the screw rod 11 passes through the side groove 10 and is fixedly connected to a rotating button 14 . A plurality of anti-slip grooves 15 are provided on the surface of the rotating button 14 to facilitate the rotation of the rotating button 14 .

[0024] When in use, first move the female connector 4 close to the inner cavity of the slot 302, so that the female connector terminal 403 is snapped into the inner cavity of the sub-connection terminal 304 for electrical connection, so that the water blocking groove 402 is snapped into the surface of the water blocking ring 303, for waterproofing after the female connector terminal 403 and the sub-connection terminal 304 are connected. At this time, the clamping block 8 located in the inner cavity of the spring groove 6 moves to the vicinity of the positioning groove 305, and then the rotating button 14 is rotated. The rotation of the rotating button 14 drives the rotation of the screw rod 11, and the rotation of the screw rod 11 drives the movement of the nut 12. The movement of the nut 12 drives the movement of the connecting rod 13, and the movement of the connecting rod 13 drives the movement of the sliding block 7. The movement of the sliding block 7 causes the clamping block 8 to move out of the inner cavity of the spring groove 6, so that the clamping block 8 is snapped into the inner cavity of the positioning groove 305, so that the sub-connection member 3 and the female connector 4 can be clamped and fixed, replacing the traditional welding process, which is convenient for later maintenance.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mine-use optical fiber shaft deformation sensor, characterized in that: The invention comprises an optical fiber deformation sensor (1), wherein one end of the bottom of the optical fiber deformation sensor (1) is connected to a connecting assembly (2), wherein the connecting assembly (2) comprises a sub-connector (3), a mother connector (4) is clamped on one side of the sub-connector (3), a cable (5) is inserted through the surface of the mother connector (4), spring grooves (6) are provided on both sides of the mother connector (4), a sliding block (7) is slidably connected to the inner cavity of the spring groove (6), a clamping block (8) is fixedly connected to the bottom of the sliding block (7), a pressing spring (9) is fixedly connected to the top of the sliding block (7), a side groove (10) is provided on one side of the spring groove (6), a screw rod (11) is rotatably connected to the inner cavity of the side groove (10), a nut (12) is threadedly connected to the surface of the screw rod (11), a connecting rod (13) is fixedly connected to one side of the nut (12), and one end of the connecting rod (13) is fixedly connected to one side of the sliding block (7); The sub-connector (3) comprises a sub-connection block (301), a slot (302) is provided on the front of the sub-connection block (301), a water blocking ring (303) is fixedly connected to the side of the inner cavity of the slot (302), a sub-connection terminal (304) is fixedly installed in the middle of the inner cavity of the slot (302), and positioning slots (305) are provided on both sides of the inner cavity of the slot (302). The female connector (4) comprises a female connection block (401); a water blocking groove (402) is provided on the side of the front of the female connection block (401), and a female connection terminal (403) is connected to the middle of the front of the female connection block (401); the water blocking groove (402) is snap-fitted to the surface of the slot (302), and the female connection terminal (403) is snap-fitted to the inner cavity of the sub-connection terminal (304).

2. The optical fiber shaft deformation sensor for mining according to claim 1, characterized in that: The clamping block (8) is a right-angled trapezoidal structure, and the bottom of the clamping block (8) is clamped with the inner cavity of the positioning groove (305).

3. The optical fiber shaft deformation sensor for mining according to claim 1, characterized in that: One end of the screw rod (11) passes through the side groove (10) and is fixedly connected to a rotating knob (14), and a plurality of anti-slip grooves (15) are provided on the surface of the rotating knob (14).

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