A fiber optic rotary connector for multi-channel fiber optic early warning equipment

Abstract

The present invention discloses a fiber optic rotary connector for multi-channel fiber optic early warning equipment, including a stator housing and a rotor sleeve rotatably connected to the inside of the stator housing, wherein a through hole adapted to the rotor sleeve is provided inside the stator housing, and the present invention relates to the field of fiber optic early warning technology. The fiber optic rotary connector for multi-channel fiber optic early warning equipment can achieve that after the rotor sleeve has been used for a long time inside the stator housing, by adjusting the pressure exerted by the clamping plate on the buffer spring, the clamping force between the roller inside the extrusion plate and the surface of the rotor sleeve can be controlled, thereby avoiding the problem of increasing off-axis deviation of the optical fiber due to increased wear between the rotor sleeve and the stator housing when the rotor sleeve rotates for a long time, and then the setting of two movable bearings can effectively prevent the rotor sleeve from offsetting and shaking when rotating, thereby ensuring stable transmission between optical signals, improving coupling efficiency, and creating good conditions for subsequent fiber optic early warning work.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber early warning technology, in particular to an optical fiber rotary connector for a multi-channel optical fiber early warning device. Background Art

[0002] Fiber optic rotary connector is also called fiber optic slip ring, fiber optic rotary joint, optical hinge, etc. Its function is to solve the problem of optical signal transmission between relatively rotating parts, that is, to ensure that the transmission of optical signals is not interrupted due to rotation. Compared with traditional electrical connectors, fiber optic rotary connector has the following advantages: 1. Use light for signal transmission, no electromagnetic leakage, good confidentiality, anti-electromagnetic interference, 2. Contactless transmission, no wear, long life, up to 5 million revolutions, no friction, can be used in flammable and explosive environments, 3. The transmission bandwidth is much larger than that of electrical connectors, and when used in conjunction with wavelength division multiplexers, the bandwidth can be doubled, 4. High rotation speed is allowed, the maximum It can reach tens of thousands of revolutions per minute. 1. According to the working principle, it can be divided into active fiber optic connectors and passive fiber optic connectors. Active devices are larger in size, have poor anti-interference ability, and have fewer transmission channels. 2. According to the number of channels, it can be divided into single-channel, dual-channel and multi-channel. The multi-channel fiber optic rotary connector has a large signal transmission capacity and can achieve two-way transmission, but it is larger in size and has a relatively complex structure. 3. According to the different optical fibers used, it can be divided into single-mode fiber optic rotary connectors and multi-mode fiber optic rotary connectors. 4. Other categories include fiber optic rotary connectors using space infrared technology and fiber optic rotary connectors using wavelength division multiplexing technology.

[0003] The optical fiber rotary connector is one of the important components in the multi-channel optical fiber early warning device. After long-term use, the wear caused by the friction between the rotor sleeve when it rotates inside the stator housing causes the position deviation between the center axes of the two optical fibers to become larger and larger, which in turn causes the rotor sleeve to move easily inside the stator housing, making the optical fiber easy to shake, affecting the stable transmission of the optical signal, and even causing the optical signal transmission to be interrupted, reducing the coupling efficiency, and shortening the service life of the equipment. Therefore, in view of the above problems, the present invention provides a optical fiber rotary connector for a multi-channel optical fiber early warning device. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a fiber optic rotary connector for a multi-channel fiber optic early warning device, which solves the problem that when the rotor sleeve rotates inside the stator housing, the wear caused by the friction between the two causes the position deviation between the center axes of the two optical fibers to become larger and larger, which in turn causes the rotor sleeve to move easily inside the stator housing and the optical fiber to shake.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an optical fiber rotary connector for a multi-channel optical fiber early warning device, comprising a stator housing and a rotor sleeve rotatably connected to the inside of the stator housing, the inside of the stator housing is provided with a through hole adapted to the rotor sleeve, the inside of the stator housing and at the top and bottom of the through hole are provided with movable grooves, the inner wall of the movable groove is rotatably connected with a threaded rod through a bearing, the two ends of the threaded rods that are separated from each other successively penetrate the movable groove and the stator housing and extend to the outside of the stator housing, the surface of the threaded rod and the inside of the movable groove are threadedly connected with a fastening nut, and the screw A pressure plate is movably connected to the surface of the grooved rod and located on one side of the fastening nut, and both sides of the pressure plate are slidably connected to the inner wall of the movable groove, and buffer springs are fixedly connected to the opposite sides of the two pressure plates, and the end of the buffer spring away from the pressure plate passes through the movable groove and the through hole in sequence and extends to the inside of the through hole, and the end of the buffer spring extending to the inside of the through hole is fixedly connected to an extrusion plate, and roller grooves are opened on the opposite side of the two extrusion plates and the top and bottom of the rotor sleeve surface, and rollers are movably connected inside the roller grooves, and movable bearings are fixedly connected to the surface of the rotor sleeve between the top and bottom of the inner wall of the through hole.

[0008] Preferably, a connecting block is fixedly connected to one side of the stator housing and located on the surface of the rotor sleeve, and a through groove compatible with the rotor sleeve is opened inside the connecting block, a fixing block is fixedly connected to the rotor sleeve and located inside the through groove, a sliding groove compatible with the fixing block is opened inside the connecting block and located on the surface of the through groove, and a limiting block is fixedly connected to the inner wall of the sliding groove, an end cover is fixedly connected to one side of the connecting block and located on the surface of the rotor sleeve by bolts, and a sealing plug is movably connected to one side of the end cover and located on the surface of the rotor sleeve.

[0009] Preferably, one end of the rotor sleeve is fixedly connected to a toggle block, and the top of the toggle block is fixedly connected to a toggle rod, one side of the toggle block is fixedly connected to a first protective cover, and one side of the stator housing is fixedly connected to a second protective cover.

[0010] Preferably, a fixing groove is provided at the other end of the rotor sleeve and located inside the through hole, and an installation groove is provided inside the rotor sleeve and located on one side of the fixing groove, a rotor collimator is fixedly connected to the inner wall of the fixing groove, a rotor lens is fixedly connected to the inside of the rotor collimator, and a rotor optical fiber is fixedly connected to one side of the rotor lens.

[0011] Preferably, one end of the rotor optical fiber away from the rotor lens passes through the fixing groove, the mounting groove, the toggle block and the first protective cover in sequence and extends to one side of the first protective cover, and a protective cover is fixedly connected to the surface of the rotor optical fiber and inside the mounting groove.

[0012] Preferably, blocks are fixedly connected to both sides of the top and bottom of the protective cover surface, and slots matching the blocks are provided inside the rotor sleeve and on both sides of the top and bottom of the installation groove.

[0013] Preferably, a stator slot is formed on one side of the inner wall of the through hole, a stator collimator is fixedly connected to the inner wall of the stator slot, a stator lens is fixedly connected inside the stator collimator, and a stator optical fiber is fixedly connected to one side of the stator lens.

[0014] Preferably, one end of the stator optical fiber passes through the second protective cover and extends to one side of the second protective cover.

[0015] (III) Beneficial effects

[0016] The present invention provides an optical fiber rotary connector for a multi-channel optical fiber early warning device. It has the following beneficial effects:

[0017] (1) The optical fiber rotary connector for multi-channel optical fiber early warning equipment has a through hole matched with the rotor sleeve through the inside of the stator shell, and movable grooves are opened inside the stator shell and located at the top and bottom of the through hole. The inner wall of the movable groove is rotatably connected to a threaded rod through a bearing, and the ends of the two threaded rods that are separated from each other successively penetrate the movable groove and the stator shell and extend to the outside of the stator shell. The surface of the threaded rod and located inside the movable groove are threadedly connected with a fastening nut, and the surface of the threaded rod and located on one side of the fastening nut are movably connected with a clamping plate, and both sides of the clamping plate are slidably connected to the inner wall of the movable groove, and the opposite sides of the two clamping plates are fixedly connected with a buffer spring, and the end of the buffer spring away from the clamping plate successively penetrates the movable groove and the through hole and extends to the inside of the through hole, and the end of the buffer spring extending to the inside of the through hole is fixedly connected with an extrusion plate, and the opposite sides of the two extrusion plates and the top and bottom of the rotor sleeve surface are opened with roller grooves, and the roller grooves are movably connected inside The cam is secured to the bearings by the spring which are located on the underside of the cam and are adapted to move relative to the bearings when the cam is in motion.

[0018] (2) The optical fiber rotary connector for multi-channel optical fiber early warning equipment is fixedly connected to an end cover through bolts on one side of the connection block and located on the surface of the rotor sleeve, and a sealing plug is movably connected to one side of the end cover and located on the surface of the rotor sleeve. A toggle block is fixedly connected to one end of the rotor sleeve, and a toggle rod is fixedly connected to the top of the toggle block. A first protective cover is fixedly connected to one side of the toggle block, and a second protective cover is fixedly connected to one side of the stator housing. The inner walls of the first protective cover and the second protective cover are both provided with waterproof rings, which can play a certain role in waterproofing and dustproofing when the connector is used, thereby enhancing the protective effect.

[0019] (3) The optical fiber rotary connector for multi-channel optical fiber early warning equipment has a fixing groove formed through the other end of the rotor sleeve and located inside the through hole, and an installation groove formed inside the rotor sleeve and located on one side of the fixing groove, a rotor collimator is fixedly connected to the inner wall of the fixing groove, and a rotor lens is fixedly connected to the inside of the rotor collimator, and a rotor optical fiber is fixedly connected to one side of the rotor lens, a stator groove is formed on one side of the inner wall of the through hole, a stator collimator is fixedly connected to the inner wall of the stator groove, a stator lens is fixedly connected to the inside of the stator collimator, and a stator optical fiber is fixedly connected to one side of the stator lens, and one end of the stator optical fiber passes through the second protective cover and extends to one side of the second protective cover, and by adding a lens in the optical fiber, the distance between the stator optical fiber and the rotor optical fiber is increased, thereby improving the coupling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0021] Figure 2 is a cross-sectional view of the structure of the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the fixed block structure of the present invention;

[0023] Figure 4 A three-dimensional diagram of the sealing plug structure of the present invention;

[0024] Figure 5 For the present invention Figure 2 A partial enlarged view of the middle A;

[0025] Figure 6 For the present invention Figure 2 A partial enlarged view of point B in the middle.

[0026] In the figure: 1-stator housing, 2-rotor sleeve, 3-through hole, 4-movable groove, 5-threaded rod, 6-fastening nut, 7-pressing plate, 8-buffer spring, 9-extrusion plate, 10-roller groove, 11-roller, 12-movable bearing, 13-connecting block, 14-through groove, 15-fixed block, 16-slide groove, 17-limiting block, 18-bolt, 19-end cover, 20-sealing plug, 21-sliding block, 22-sliding rod, 23-first protective cover, 24-second protective cover, 25-fixing groove, 26-installing groove, 27-rotor collimator, 28-rotor lens, 29-rotor optical fiber, 30-protective cover, 31-block, 32-slot, 33-stator groove, 34-stator collimator, 35-stator lens, 36-stator optical fiber. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6The embodiment of the present invention provides a technical solution: an optical fiber rotary connector for a multi-channel optical fiber early warning device, which can realize that after the rotor sleeve 2 has been used for a long time inside the stator housing 1, the pressure generated by the clamping plate 7 on the buffer spring 8 is adjusted, thereby controlling the clamping force between the roller 11 inside the extrusion plate 9 and the surface of the rotor sleeve 2, thereby avoiding the increase in wear between the rotor sleeve 2 and the stator housing 1 when the rotor sleeve 2 rotates for a long time, thereby causing the optical fiber to deviate from the axis more and more. The setting of two movable bearings 12 can effectively prevent the rotor sleeve 2 from offset and shaking when rotating, so that the optical signals are transmitted stably, the coupling efficiency is improved, and good conditions are created for subsequent optical fiber early warning work, including The invention comprises a stator housing 1 and a rotor sleeve 2 rotatably connected to the inside of the stator housing 1, a fixing groove 25 is provided at the other end of the rotor sleeve 2 and located inside the through hole 3, a mounting groove 26 is provided inside the rotor sleeve 2 and located on one side of the fixing groove 25, a rotor collimator 27 is fixedly connected to the inner wall of the fixing groove 25, and a rotor lens 28 is fixedly connected to the inside of the rotor collimator 27, a rotor optical fiber 29 is fixedly connected to one side of the rotor lens 28, an end of the rotor optical fiber 29 away from the rotor lens 28 sequentially penetrates the fixing groove 25, the mounting groove 26, the toggle block 21 and the first protective cover 23 and extends to one side of the first protective cover 23, and a protective fiber 29 is fixedly connected to the surface of the rotor optical fiber 29 and located inside the mounting groove 26 The inner walls of the protective sleeve 30, the first protective cover 23 and the second protective cover 24 are all provided with waterproof rings, which can play a certain waterproof and dustproof role when the connector is used, thereby enhancing the protective effect. Blocks 31 are fixedly connected to both sides of the top and bottom of the surface of the protective sleeve 30, and slots 32 adapted to the block 31 are provided inside the rotor sleeve 2 and on both sides of the top and bottom of the mounting groove 26. A toggle block 21 is fixedly connected to one end of the rotor sleeve 2, and a toggle rod 22 is fixedly connected to the top of the toggle block 21. The first protective cover 23 is fixedly connected to one side of the toggle block 21, and the second protective cover 24 is fixedly connected to one side of the stator housing 1. A through hole 3 adapted to the rotor sleeve 2 is provided inside the stator housing 1. A stator slot 33 is provided on one side of the inner wall of the through hole 3, a stator collimator 34 is fixedly connected to the inner wall of the stator slot 33, a stator lens 35 is fixedly connected inside the stator collimator 34, and a stator optical fiber 36 is fixedly connected to one side of the stator lens 35. By adding a lens in the optical fiber, the distance between the stator optical fiber 36 and the rotor optical fiber 29 is increased, thereby improving the coupling efficiency. A connecting block 13 is fixedly connected to one side of the stator housing 1 and located on the surface of the rotor sleeve 2, and a through slot 14 adapted to the rotor sleeve 2 is provided inside the connecting block 13, and a fixing block 15 is fixedly connected to the rotor sleeve 2 and located inside the through slot 14. The rotor lens 28 and the stator lens 35 can adopt a self-focusing lens, a C lens (C lens) or an aspherical lens, a sliding groove 16 adapted to the fixing block 15 is provided inside the connecting block 13 and located on the surface of the through slot 14, and a limiting block 17 is fixedly connected to the inner wall of the sliding groove 16,An end cover 19 is fixedly connected to one side of the connecting block 13 and located on the surface of the rotor sleeve 2 through a bolt 18, a sealing plug 20 is movably connected to one side of the end cover 19 and located on the surface of the rotor sleeve 2, a movable groove 4 is opened inside the stator housing 1 and located at the top and bottom of the through hole 3, a threaded rod 5 is rotatably connected to the inner wall of the movable groove 4 through a bearing, and the ends of the two threaded rods 5 that are separated from each other successively penetrate the movable groove 4 and the stator housing 1 and extend to the outside of the stator housing 1, a fastening nut 6 is threadedly connected to the surface of the threaded rod 5 and located inside the movable groove 4, and a fastening nut 6 is movably connected to the surface of the threaded rod 5 and located on one side of the fastening nut 6 There is a clamping plate 7, both sides of the clamping plate 7 are slidably connected to the inner wall of the movable groove 4, and the opposite sides of the two clamping plates 7 are fixedly connected with a buffer spring 8. The end of the buffer spring 8 away from the clamping plate 7 passes through the movable groove 4 and the through hole 3 in turn and extends to the inside of the through hole 3. The end of the buffer spring 8 extending to the inside of the through hole 3 is fixedly connected with an extrusion plate 9. The opposite sides of the two extrusion plates 9 are provided with roller grooves 10 at the top and bottom of the surface of the rotor sleeve 2. The rollers 11 are movably connected inside the roller grooves 10. The movable bearings 12 are fixedly connected between the top and bottom of the inner wall of the through hole 3 and on the surface of the rotor sleeve 2.

[0029] During use, when the rotor sleeve 2 is used for a long time inside the stator housing 1, the rotation of the rotor sleeve 2 is prone to axial deviation. At this time, the personnel rotate the threaded rod 5. As the threaded rod 5 rotates, the fastening nut 6 can drive the clamping plate 7 to move in the direction of the rotor sleeve 2. At this time, the clamping plate 7 will drive the buffer spring 8 to press in the direction of the rotor sleeve 2. By adjusting the compression degree of the extrusion plate 9, the compression force of the roller 11 in the extrusion plate 9 on the rotor sleeve 2, and then the two movable bearings 12 are set, the problem of displacement of the rotor sleeve 2 can be prevented. At the same time, when the rotor sleeve 2 rotates, the fixed block 15 moves along the slide groove 16 The internal limit block 17 rotates to further enhance the coupling efficiency between the stator optical fiber 29 and the rotor optical fiber 29, and also improves the stability of optical signal transmission. The rotor optical fiber 29 is fixed in the protective cover 30, and the protective cover 30 is clamped in the card slot 32 by the clamping block 31 to prevent the optical fiber from shaking due to external forces. The end cover 19 is fixed to the connecting block 13 by threads, and the sealing plug 20 is plugged into the end cover 19, which can protect the internal structure of the stator housing 1. The distance between the stator optical fiber 36 and the rotor optical fiber 29 is increased by the rotor lens 28 and the stator lens 35, thereby improving the coupling efficiency.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical fiber rotary connector for a multi-channel optical fiber early warning device, comprising a stator housing (1) and a rotor sleeve (2) rotatably connected to the inside of the stator housing (1), wherein the inside of the stator housing (1) is provided with a through hole (3) adapted to the rotor sleeve (2), characterized in that: A movable groove (4) is provided inside the stator housing (1) and at the top and bottom of the through hole (3); the inner wall of the movable groove (4) is rotatably connected to a threaded rod (5) via a bearing; the two ends of the threaded rods (5) respectively penetrate the movable groove (4) and the stator housing (1) and extend to the outside of the stator housing (1); a fastening nut (6) is threadedly connected to the surface of the threaded rod (5) and located inside the movable groove (4); a clamping plate (7) is movably connected to the surface of the threaded rod (5) and located on one side of the clamping nut (6); both sides of the clamping plate (7) are slidably connected to the inner wall of the movable groove (4); and the two clamping plates (7) are slidably connected to the inner wall of the movable groove (4). A buffer spring (8) is fixedly connected to one side opposite to the clamping plate (7); one end of the buffer spring (8) away from the clamping plate (7) passes through the movable groove (4) and the through hole (3) in sequence and extends into the interior of the through hole (3); one end of the buffer spring (8) extending into the interior of the through hole (3) is fixedly connected to an extrusion plate (9); roller grooves (10) are provided on one side opposite to the two extrusion plates (9) and at the top and bottom of the surface of the rotor sleeve (2); a roller (11) is movably connected inside the roller groove (10); and a movable bearing (12) is fixedly connected to the surface of the rotor sleeve (2) between the top and bottom of the inner wall of the through hole (3); A connecting block (13) is fixedly connected to one side of the stator housing (1) and located on the surface of the rotor sleeve (2), and a through groove (14) matching the rotor sleeve (2) is provided inside the connecting block (13); a fixing block (15) is fixedly connected to the rotor sleeve (2) and located inside the through groove (14); a sliding groove (16) matching the fixing block (15) is provided inside the connecting block (13) and located on the surface of the through groove (14), and a limiting block (17) is fixedly connected to the inner wall of the sliding groove (16); an end cover (19) is fixedly connected to one side of the connecting block (13) and located on the surface of the rotor sleeve (2) via bolts (18), and a sealing plug (20) is movably connected to one side of the end cover (19) and located on the surface of the rotor sleeve (2); A fixing groove (25) is provided at the other end of the rotor sleeve (2) and located inside the through hole (3); a mounting groove (26) is provided inside the rotor sleeve (2) and located on one side of the fixing groove (25); a rotor collimator (27) is fixedly connected to the inner wall of the fixing groove (25); a rotor lens (28) is fixedly connected inside the rotor collimator (27); and a rotor optical fiber (29) is fixedly connected to one side of the rotor lens (28); One end of the rotor optical fiber (29) away from the rotor lens (28) sequentially penetrates the fixing groove (25), the mounting groove (26), the toggle block (21) and the first protective cover (23) and extends to one side of the first protective cover (23); a protective cover (30) is fixedly connected to the surface of the rotor optical fiber (29) and located inside the mounting groove (26).

2. The optical fiber rotary connector for a multi-channel optical fiber early warning device according to claim 1, characterized in that: One end of the rotor sleeve (2) is fixedly connected to a toggle block (21), and the top of the toggle block (21) is fixedly connected to a toggle rod (22), one side of the toggle block (21) is fixedly connected to a first protective cover (23), and one side of the stator housing (1) is fixedly connected to a second protective cover (24).

3. The optical fiber rotary connector for a multi-channel optical fiber early warning device according to claim 1, characterized in that: Blocks (31) are fixedly connected to both sides of the top and bottom of the surface of the protective sleeve (30), and slots (32) matching the blocks (31) are provided inside the rotor sleeve (2) and on both sides of the top and bottom of the installation groove (26).

4. The optical fiber rotary connector for a multi-channel optical fiber early warning device according to claim 1, characterized in that: A stator slot (33) is provided on one side of the inner wall of the through hole (3); a stator collimator (34) is fixedly connected to the inner wall of the stator slot (33); a stator lens (35) is fixedly connected inside the stator collimator (34); and a stator optical fiber (36) is fixedly connected to one side of the stator lens (35).

5. The optical fiber rotary connector for a multi-channel optical fiber early warning device according to claim 4, characterized in that: One end of the stator optical fiber (36) passes through the second protective cover (24) and extends to one side of the second protective cover (24).

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