A probe protection device for optical fiber electric field sensor

Abstract

The present invention discloses a probe protection device for an optical fiber electric field sensor, comprising a base, a heat dissipation mechanism, a clamping mechanism, a reinforcing mechanism, a guide frame, a telescopic cover, an opening and closing cover, a mounting frame, a lifting seat, a sensor, a support block, and an elastic band. The base is provided with a heat dissipation mechanism, the base is provided with a clamping mechanism, the base is provided with a reinforcing mechanism, the base is in contact with a guide frame, the guide frame is internally slidably connected with a telescopic cover, the telescopic cover is hinged with two symmetrically distributed opening and closing covers, the guide frame is fixedly connected with a mounting frame, the telescopic cover is internally slidably connected with a lifting seat, the lifting seat is fixedly connected with a sensor, and the opening and closing cover is fixedly connected with a support block. The present invention relates to a probe protection device for an optical fiber electric field sensor, which has the characteristics that the protection device is easy to disassemble, can avoid signal interference and avoid sensor overheating.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber electric field sensors, in particular to a probe protection device of an optical fiber electric field sensor. Background Art

[0002] In recent years, as motors, high-voltage electrical equipment and instruments develop towards miniaturization, the rationalization and precision of insulation design are required, such as the measurement of electric field distribution at the motor end and under the high-voltage overhead line, the analysis of discharge phenomena in electrical sealing devices, and the study of ion flow fields and long-gap glow discharge characteristics near ultra-high voltage transmission lines. All these require the realization of precise detection, high-sensitivity detection and safety detection of electric fields. Now, the portable optical fiber sensing electric field detection system combining the optical technology of the Pokels effect, optical fiber transmission and signal processing technology is mostly used. The system has a light transmitting and receiving device far away from the detection target, and has high sensitivity and a large measurement dynamic range. It is not affected by electromagnetic interference, and the measurement is safe and reliable, which has a wide range of application prospects. The optical fiber sensing electric field detection system consists of two parts: electric field signal sensing and photoelectric signal detection. The former includes optical fiber electric field sensors and transmission optical fibers, and the latter consists of signal processing systems and digital display circuits. Fiber optic electric field sensors are generally equipped with probes, but there are some problems with the current probe protection device: 1. The heat dissipation effect of the protection device is poor, which affects the working life of the sensor; 2. When protecting the sensor, it is easy to affect the sensing effect, resulting in inaccurate measurement; 3. The protection mechanism is not easy to disassemble for maintenance. Therefore, it is necessary to design a probe protection device for fiber optic electric field sensors. Summary of the invention

[0003] The purpose of the present invention is to provide a probe protection device for an optical fiber electric field sensor in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0004] In order to solve the above problems, the present invention provides a technical solution for a probe protection device of an optical fiber electric field sensor:

[0005] A probe protection device for an optical fiber electric field sensor comprises a base, a heat dissipation mechanism, a clamping mechanism, a reinforcing mechanism, a guide frame, a telescopic cover, an opening and closing cover, a mounting frame, a lifting seat, a sensor, a support block and an elastic band. The base is provided with a heat dissipation mechanism, the base is provided with a clamping mechanism, the base is provided with a reinforcing mechanism, the base is in contact with a guide frame, the interior of the guide frame is slidably connected to the telescopic cover, two symmetrically distributed opening and closing covers are hinged on the telescopic cover, the guide frame is fixedly connected to the mounting frame, the interior of the telescopic cover is slidably connected to the lifting seat, the lifting seat is fixedly connected to the sensor, and the opening and closing cover is fixedly connected to the support block.

[0006] Preferably, an elastic band is provided inside the telescopic cover, one end of the elastic band is fixedly connected to the telescopic cover, and the other end of the elastic band is fixedly connected to the opening and closing cover, the two opening and closing covers are in contact with each other, and the elastic band can drive the opening and closing covers to automatically reset through elastic force.

[0007] Preferably, the heat dissipation mechanism includes a heat-conductive sealing cover, a cold air box, a semiconductor controller, a semiconductor refrigeration frame, a guide fan, and a filter. The lifting seat is fixedly connected with a heat-conductive sealing cover, the heat-conductive sealing cover is fixedly connected to the sensor, the heat-conductive sealing cover is in contact with the support block, the base is fixedly connected with a cold air box inside, the cold air box is fixedly connected with a semiconductor controller inside, the cold air box is fixedly connected with a semiconductor refrigeration frame inside, the semiconductor refrigeration frame is fixedly connected to the semiconductor controller, the cold air box is fixedly connected with a guide fan inside, the cold air box is fixedly connected with a filter, the semiconductor controller cools through the semiconductor refrigeration frame, and then starts the guide fan. The guide fan carries the airflow through the filter and then enters the interior of the cold air box, and after being cooled by the semiconductor refrigeration frame, it is blown onto the heat-conductive sealing cover, and heat exchange is performed with the heat-conductive sealing cover through the cold air, so that the sensor can be effectively cooled and overheating can be avoided.

[0008] Preferably, the clamping mechanism includes a connecting frame, a limit frame, and a tension spring. The connecting frame is fixedly connected to the guide frame, and the limit frame is hinged on the base. The limit frame is slidably connected to the connecting frame. A tension spring is arranged on the base, one end of the tension spring is fixedly connected to the limit frame, and the other end of the tension spring is fixedly connected to the base. The limit frame is flipped in the direction of disengaging from the connecting frame, and the limit frame stretches the tension spring. When the limit frame is disengaged from the connecting frame, the guide frame can be moved upward. The servo motor is started while moving, and the servo motor drives the screw to rotate. The screw drives the lifting seat to move upward along with the telescopic cover through the threaded cooperation with the threaded barrel, so that the guide frame and the telescopic cover can be disassembled.

[0009] Preferably, the reinforcing mechanism includes a limit rod, a threaded barrel, a screw, a servo motor, a guide rod, a spring, a wire rope, and a guide wheel. The lifting seat is fixedly connected with a threaded barrel, the threaded barrel is slidably connected to the mounting frame, the interior of the threaded barrel is threadedly connected with a screw, the base is fixedly connected with a servo motor, the output shaft of the servo motor is connected to the screw by bolts, the guide frame is fixedly connected with a guide rod, a spring is arranged on the outer side of the guide rod, a wire rope is fixedly connected to the telescopic cover, and a guide wheel is fixedly installed on the guide frame, and the servo motor drives the screw to rotate. During the rotation process, the screw drives the lifting seat to move upward through the threaded cooperation with the threaded barrel, and during the upward movement of the lifting seat, the opening and closing cover is stretched open by the heat-conducting sealing cover and the support block, and the elastic band is stretched, and the lifting seat drives the wire rope to move during the movement, and drives the telescopic cover to move downward through the guide wheel, and compresses the spring, so that the sensor and the heat-conducting sealing cover can be moved to the outer side of the telescopic cover, thereby effectively preventing the protection device from affecting the transmission of the signal.

[0010] Preferably, two symmetrically distributed limiting rods are fixedly connected to the lifting seat, and the limiting rods are slidably connected to the mounting frame, and the limiting rods can limit the lifting seat.

[0011] Preferably, the guide wheel is in contact with the steel wire rope, one end of the steel wire rope is connected to the lifting seat by bolts, and the guide wheel can guide the transmission direction of the steel wire rope.

[0012] Preferably, one end of the spring is fixedly connected to the guide frame, and the other end of the spring is fixedly connected to the telescopic cover, and the spring can drive the telescopic cover to automatically reset through elastic force.

[0013] The beneficial effects of the present invention are as follows: the present invention relates to a probe protection device for an optical fiber electric field sensor, which has the characteristics of being easy to disassemble, being able to avoid signal interference and avoiding overheating of the sensor, and having the following beneficial effects in specific use:

[0014] Firstly, by adding structures such as a cold air box, a thermally conductive sealing cover and a semiconductor refrigerator to the base, during the use of the sensor, the heat of the thermally conductive sealing cover can be dissipated by the cold air blown out from the cold air box, thereby effectively preventing the sensor from overheating.

[0015] Secondly, by adding structures such as a telescopic cover, a guide cover and a threaded barrel on the base, when the signal needs to be enhanced, the threaded cooperation between the threaded barrel and the screw can be used to drive the lifting seat to rise while driving the telescopic cover downward, so that the sensor can be extended from the telescopic cover, which can effectively prevent the signal sensed by the sensor from being affected, and the guide frame can be limited by the card connection between the limit frame and the connecting frame. When disassembly is required, the limit frame only needs to be separated from the connecting frame to complete the disassembly of the protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A front cross-sectional view of

[0019] Figure 3 For the present invention Figure 2 An enlarged cross-sectional view of a cold air box;

[0020] Figure 4 For the present invention Figure 2 A magnified view of the structure of part A;

[0021] Figure 5 For the present invention Figure 2 A magnified view of the structure of part B;

[0022] Figure 6 For the present invention Figure 2 Enlarged view of the C structure.

[0023] In the figure: 1. base; 2. heat dissipation mechanism; 3. clamping mechanism; 4. reinforcement mechanism; 5. guide frame; 6. telescopic cover; 7. opening and closing cover; 8. mounting frame; 9. lifting seat; 10. sensor; 11. support block; 12. elastic belt; 21. thermal sealing cover; 22. cold air box; 23. semiconductor controller; 24. semiconductor refrigeration frame; 25. guide fan; 26. filter; 31. connecting frame; 32. limit frame; 33. tension spring; 41. limit rod; 42. threaded barrel; 43. screw; 44. servo motor; 45. guide rod; 46. spring; 47. wire rope; 48. guide wheel. DETAILED DESCRIPTION

[0024] like Figure 1-6 As shown, this specific implementation adopts the following technical solutions:

[0025] Example:

[0026] A probe protection device for an optical fiber electric field sensor comprises a base 1, a heat dissipation mechanism 2, a clamping mechanism 3, a reinforcing mechanism 4, a guide frame 5, a telescopic cover 6, an opening and closing cover 7, a mounting frame 8, a lifting seat 9, a sensor 10, a support block 11, and an elastic band 12. The heat dissipation mechanism 2 is provided on the base 1, the clamping mechanism 3 is provided on the base 1, the reinforcing mechanism 4 is provided on the base 1, the base 1 is in contact with the guide frame 5, the inner part of the guide frame 5 is slidably connected to the telescopic cover 6, two symmetrically distributed opening and closing covers 7 are hinged on the telescopic cover 6, the guide frame 5 is fixedly connected to the mounting frame 8, the inner part of the telescopic cover 6 is slidably connected to the lifting seat 9, the lifting seat 9 is fixedly connected to the sensor 10, and the opening and closing cover 7 is fixedly connected to the support block 11.

[0027] Among them, an elastic band 12 is arranged inside the telescopic cover 6, one end of the elastic band 12 is fixedly connected to the telescopic cover 6, and the other end of the elastic band 12 is fixedly connected to the opening and closing cover 7. The two opening and closing covers 7 are in contact with each other, and the elastic band 12 can drive the opening and closing covers 7 to automatically reset through elastic force.

[0028] The heat dissipation mechanism 2 includes a heat-conducting sealing cover 21, a cold air box 22, a semiconductor controller 23, a semiconductor refrigeration frame 24, a guide fan 25, and a filter 26. The lifting seat 9 is fixedly connected with the heat-conducting sealing cover 21, the heat-conducting sealing cover 21 is fixedly connected to the sensor 10, and the heat-conducting sealing cover 21 is in contact with the support block 11. The interior of the base 1 is fixedly connected with the cold air box 22, the interior of the cold air box 22 is fixedly connected with the semiconductor controller 23, the interior of the cold air box 22 is fixedly connected with the semiconductor refrigeration frame 24, and the semiconductor refrigeration The rack 24 is fixedly connected to the semiconductor controller 23, the interior of the cold air box 22 is fixedly connected with a guide fan 25, the interior of the cold air box 22 is fixedly connected with a filter 26, the semiconductor controller 23 is cooled by the semiconductor refrigeration rack 24, and then the guide fan 25 is started, the guide fan 25 brings the airflow through the filter 26 and then enters the interior of the cold air box 22, after being cooled by the semiconductor refrigeration rack 24, it is blown onto the heat-conducting sealing cover 21, and heat is exchanged with the heat-conducting sealing cover 21 through the cold air, so that the sensor 10 can be effectively cooled to avoid overheating.

[0029] Among them, the clamping mechanism 3 includes a connecting frame 31, a limiting frame 32, and a tension spring 33. The connecting frame 31 is fixedly connected to the guide frame 5, and the limiting frame 32 is hinged on the base 1. The limiting frame 32 is slidably connected to the connecting frame 31. The base 1 is provided with a tension spring 33, one end of the tension spring 33 is fixedly connected to the limiting frame 32, and the other end of the tension spring 33 is fixedly connected to the base 1. The limiting frame 32 is flipped in the direction of disengaging from the connecting frame 31, and the limiting frame 32 stretches the tension spring 33. The limiting frame 32 is made of rubber material. When the limiting frame 32 is separated from the connecting frame 31, the guide frame 5 can be moved upward. While moving, the servo motor 44 is started, and the servo motor 44 drives the screw 43 to rotate. The screw 43 drives the lifting seat 9 to move upward along with the telescopic cover 6 through the threaded cooperation with the threaded barrel 42, so that the guide frame 5 and the telescopic cover 6 can be disassembled.

[0030] The reinforcing mechanism 4 includes a limiting rod 41, a threaded cylinder 42, a screw 43, a servo motor 44, a guide rod 45, a spring 46, a wire rope 47, and a guide wheel 48. The lifting seat 9 is fixedly connected with a threaded cylinder 42, and the threaded cylinder 42 is slidably connected to the mounting frame 8. The interior of the threaded cylinder 42 is connected with a screw 43 through a thread. The base 1 is fixedly connected with a servo motor 44, and the output shaft of the servo motor 44 is connected with the screw 43 through bolts. The guide frame 5 is fixedly connected with a guide rod 45, and a spring 46 is arranged on the outside of the guide rod 45. The telescopic cover 6 is fixedly connected with a wire rope 47. A guide wheel 48 is fixedly installed on the frame 5, and the servo motor 44 drives the screw 43 to rotate. During the rotation, the screw 43 drives the lifting seat 9 to move upward through the threaded cooperation with the threaded tube 42. During the upward movement, the lifting seat 9 opens the opening and closing cover 7 through the heat-conductive sealing cover 21 and the support block 11, and stretches the elastic band 12. In the process of movement, the lifting seat 9 drives the wire rope 47 to move, and drives the telescopic cover 6 to move downward through the guide wheel 48, and compresses the spring 46, so that the sensor 10 and the heat-conductive sealing cover 21 can be moved to the outside of the telescopic cover 6, thereby effectively preventing the protection device from affecting the transmission of the signal.

[0031] The lifting seat 9 is fixedly connected with two symmetrically distributed limiting rods 41 , and the limiting rods 41 are slidably connected with the mounting frame 8 , and the limiting rods 41 can limit the lifting seat 9 .

[0032] The guide wheel 48 is in contact with the steel wire rope 47 , one end of the steel wire rope 47 is connected to the lifting seat 9 by bolts, and the guide wheel 48 can guide the transmission direction of the steel wire rope 47 .

[0033] One end of the spring 46 is fixedly connected to the guide frame 5 , and the other end of the spring 46 is fixedly connected to the telescopic cover 6 . The spring 46 can drive the telescopic cover 6 to automatically reset through elastic force.

[0034] The use state of the present invention is: when it is necessary to enhance the signal sensing strength of the sensor 10, the servo motor 44 is started, and the servo motor 44 drives the screw 43 to rotate. During the rotation process, the screw 43 drives the lifting seat 9 to move upward through the threaded cooperation with the threaded cylinder 42. During the upward movement, the lifting seat 9 opens the opening and closing cover 7 through the heat-conducting sealing cover 21 and the support block 11, and stretches the elastic band 12. In the process of moving, the lifting seat 9 drives the wire rope 47 to move, and drives the telescopic cover 6 to move downward through the guide wheel 48, and compresses the spring 46, so that the sensor 10 and the heat-conducting sealing cover 21 can be moved to the outside of the telescopic cover 6, so as to effectively avoid the protection device from affecting the transmission of the signal;

[0035] The heat generated during the operation of the sensor 10 is transferred to the surrounding air through the heat-conducting sealing cover 21, and then the semiconductor controller 23 is started, and the semiconductor controller 23 performs cooling through the semiconductor refrigeration rack 24, and then the guide fan 25 is started, and the guide fan 25 brings the airflow through the filter 26 and enters the interior of the cold air box 22, and after being cooled by the semiconductor refrigeration rack 24, it is blown onto the heat-conducting sealing cover 21, and heat is exchanged with the heat-conducting sealing cover 21 through the cold air, so that the sensor 10 can be effectively cooled and prevented from overheating;

[0036] When it is necessary to disassemble the guide frame 5 and the telescopic cover 6, the limit frame 32 is flipped in the direction of the disengagement from the connecting frame 31, and the limit frame 32 stretches the tension spring 33. When the limit frame 32 is separated from the connecting frame 31, the guide frame 5 can be moved upward, and the servo motor 44 is started while moving. The servo motor 44 drives the screw rod 43 to rotate, and the screw rod 43 drives the lifting seat 9 to move upward along with the telescopic cover 6 through the threaded cooperation with the threaded cylinder 42, so that the guide frame 5 and the telescopic cover 6 can be disassembled.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A probe protection device for an optical fiber electric field sensor, comprising a base (1), a heat dissipation mechanism (2), a clamping mechanism (3), a reinforcing mechanism (4), a guide frame (5), a telescopic cover (6), an opening and closing cover (7), a mounting frame (8), a lifting seat (9), a sensor (10), a support block (11), and an elastic band (12), characterized in that: The base (1) is provided with a heat dissipation mechanism (2), the base (1) is provided with a clamping mechanism (3), the base (1) is provided with a reinforcement mechanism (4), the base (1) is in contact with a guide frame (5), the guide frame (5) is internally slidably connected to a telescopic cover (6), the telescopic cover (6) is hinged with two symmetrically distributed opening and closing covers (7), the guide frame (5) is fixedly connected to a mounting frame (8), the telescopic cover (6) is internally slidably connected to a lifting seat (9), the lifting seat (9) is fixedly connected to a sensor (10), and the opening and closing cover (7) is fixedly connected to a support block (11); The reinforcing mechanism (4) comprises a limit rod (41), a threaded cylinder (42), a screw (43), a servo motor (44), a guide rod (45), a spring (46), a steel wire rope (47), and a guide wheel (48); the lifting seat (9) is fixedly connected with the threaded cylinder (42); the threaded cylinder (42) is slidably connected to the mounting frame (8); the interior of the threaded cylinder (42) is connected with the screw (43) by threads; the base (1) is fixedly connected with the servo motor (44); the output shaft of the servo motor (44) is connected with the screw (43) by bolts; the guide frame (5) is fixedly connected with the guide rod (45); the outer side of the guide rod (45) is provided with a spring (46); the telescopic cover (6) is fixedly connected with the steel wire rope (47); and the guide frame (5) is fixedly mounted with the guide wheel (48); The guide wheel (48) is in contact with the steel wire rope (47), and one end of the steel wire rope (47) is connected to the lifting seat (9) via bolts.

2. The probe protection device of the optical fiber electric field sensor according to claim 1, characterized in that: An elastic band (12) is arranged inside the telescopic cover (6), one end of the elastic band (12) is fixedly connected to the telescopic cover (6), and the other end of the elastic band (12) is fixedly connected to the opening and closing cover (7), and the two opening and closing covers (7) are in contact with each other.

3. The probe protection device of the optical fiber electric field sensor according to claim 1, characterized in that: The heat dissipation mechanism (2) comprises a heat-conducting sealing cover (21), a cold air box (22), a semiconductor controller (23), a semiconductor refrigeration rack (24), a guide fan (25), and a filter (26); the lifting seat (9) is fixedly connected with the heat-conducting sealing cover (21); the heat-conducting sealing cover (21) is fixedly connected to the sensor (10); the heat-conducting sealing cover (21) contacts the support block (11); the interior of the base (1) is fixedly connected with the cold air box (22); the interior of the cold air box (22) is fixedly connected with the semiconductor refrigeration rack (24); the interior of the cold air box (22) is fixedly connected with the semiconductor refrigeration rack (24); the semiconductor refrigeration rack (24) is fixedly connected to the semiconductor controller (23); the interior of the cold air box (22) is fixedly connected with the guide fan (25); and the interior of the cold air box (22) is fixedly connected with the filter (26).

4. The probe protection device of the optical fiber electric field sensor according to claim 3, characterized in that: The clamping mechanism (3) comprises a connecting frame (31), a limiting frame (32), and a tension spring (33); the connecting frame (31) is fixedly connected to the guide frame (5); the limiting frame (32) is hingedly connected to the base (1); the limiting frame (32) is slidably connected to the connecting frame (31); the base (1) is provided with a tension spring (33); one end of the tension spring (33) is fixedly connected to the limiting frame (32), and the other end of the tension spring (33) is fixedly connected to the base (1).

5. The probe protection device of the optical fiber electric field sensor according to claim 1, characterized in that: The lifting seat (9) is fixedly connected to two symmetrically distributed limiting rods (41), and the limiting rods (41) are slidably connected to the mounting frame (8).

6. The probe protection device of the optical fiber electric field sensor according to claim 1, characterized in that: One end of the spring (46) is fixedly connected to the guide frame (5), and the other end of the spring (46) is fixedly connected to the telescopic cover (6).

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