A line monitoring device and method of operation

Abstract

The present application relates to the technical field of line circuit monitoring device, specifically to a line circuit monitoring device and operation method, which comprises a telegraph pole, a protective shell, upper and lower protective frames, a light transmission plate, a waterproof plate and a monitoring box.The telegraph pole is fixed with the protective shell through a hoop and bolts, the upper and lower protective frames are hingedly connected and slidingly connected, and the upper protective frame is provided with a first driving assembly for folding opening and closing.The waterproof plate is inserted into the protective shell, the back of the monitoring box is provided with a mounting block, the inner wall of the protective shell is provided with a clamping mechanism including a fixed plate, a sliding positioning rod and a second driving assembly for quickly locking or releasing the monitoring box.The present application improves the protection capability through the corrosion-resistant coating and waterproof structure of the protective shell, prolongs the service life of the monitoring box, realizes the quick disassembly and assembly of the monitoring box through the cooperation of the clamping mechanism and the driving assembly, simplifies the maintenance process, and improves the operation convenience and maintenance efficiency through the linkage self-locking design of the folding protective frame.

Description

Technical Field

[0001] This invention relates to the field of transmission circuit monitoring equipment technology, specifically to a transmission circuit monitoring device and its operating method. Background Technology

[0002] Transmission line monitoring is a crucial link in ensuring the stable operation of the power system. Real-time monitoring of line conditions can effectively prevent safety hazards caused by environmental changes, mechanical stress, and other factors. Among these measures, transmission line sag detection is an important step in ensuring the safe operation of overhead transmission lines. Transmission line sag refers to the vertical distance from any point on the overhead line to the line connecting the two suspension points; its magnitude directly affects the electrical safety and mechanical strength of the line. Accurate monitoring of sag changes is of great significance in preventing accidents such as line breaks and flashovers.

[0003] In the prior art, a search revealed a patent with publication number CN104534997B, which proposes a sag monitoring device for transmission lines. This device works in conjunction with a marker placed at the point of maximum sag on the transmission line and a measuring device on the tower. The measuring device incorporates an infrared sensor, a microcontroller, and a GPRS module. The infrared sensor collects the distance between itself and the marker, as well as the angle between the connecting line and the horizontal line. The microcontroller, combining the known parameters, calculates two sag values ​​using the Pythagorean theorem and trigonometric functions, respectively, and finally outputs the average value of the maximum sag result. This solution provides automated measurement and remote data transmission capabilities for sag monitoring.

[0004] However, the above-mentioned device still has the following drawbacks: since the measuring device housing is directly exposed to the outside of the tower and lacks a targeted protective structure, the internal components are easily corroded by the environment and their service life is affected when exposed to severe weather such as rain and snow for a long time. In addition, the housing needs to be installed by conventional methods such as brackets or clamps, and must be kept strictly horizontal to ensure measurement accuracy, which makes the disassembly and maintenance process cumbersome and causes trouble for the convenience of disassembly and installation in the later maintenance of the equipment. Therefore, the present invention proposes a transmission circuit monitoring device and operating method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a transmission circuit monitoring device and operating method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a transmission line circuit monitoring device and operating method, comprising: a utility pole, the top of which is fixedly connected to one side of a protective shell by means of a clamp and bolts, a lower protective frame is provided at the bottom of the other side of the protective shell, an upper protective frame is hinged to the upper side of the lower protective frame, a light-transmitting protective plate is fixedly installed inside both the lower and upper protective frames, both sides of the lower and upper protective frames are slidably connected to the protective shell, a first driving component for driving the lower and upper protective frames to fold and open is connected to the top side of the upper protective frame, and a waterproof plate is provided on the outside of the lower and upper protective frames, the top of the waterproof plate being slidably inserted into the protective shell;

[0007] A monitoring box is installed inside the protective shell. Mounting blocks are fixedly connected to the four corners of the back of the monitoring box. A positioning groove is provided on one side of each mounting block. A snap-fit ​​mechanism is provided on the inner wall of the protective shell near the monitoring box. The snap-fit ​​mechanism includes a fixing plate, one side of which is fixedly connected to the inner wall of the protective shell. Positioning rods, symmetrically arranged vertically, are slidably mounted on the fixing plate. One end of each positioning rod is slidably inserted into a positioning groove, and the other end of each positioning rod is connected to a second drive assembly for driving the relative movement of the positioning rods.

[0008] Preferably, a guide rail is fixedly installed inside the protective shell on the side away from the utility pole, and limit rods are fixedly connected to both sides of the bottom of the lower protective frame. Rollers are rotatably sleeved on the limit rods, and the rollers are rolledly connected to the guide rail. A slot is opened on one side of the top of the protective shell, and the slot is slidably inserted into the plug rod fixedly connected to the top of the waterproof plate.

[0009] Preferably, a U-shaped frame is fixedly connected to the top of the upper protective frame. The first drive assembly includes a pull rod, one end of which is fixedly sleeved on the end of the rotating shaft. The rotating shaft passes through both U-shaped frames and is fixedly connected to the U-shaped frames. Both sides of the rotating shaft are rotatably sleeved in the upper limit seat fixedly connected to the inner wall of the protective shell. The end of the U-shaped frame away from the upper protective frame is rotatably connected to one end of the tension spring through a connecting pin. The other end of the tension spring is rotatably connected to the lower limit seat fixedly connected to the inner wall of the protective shell through a fixing pin.

[0010] Preferably, a limiting groove is provided at the other end of the pull rod, and a stop bar is provided on the side of the pull rod near the rotating shaft. The stop bar is fixedly installed on the outer wall of the protective shell. A set of sleeves is provided on the lower side of the stop bar. Each sleeve is fixedly sleeved on the side wall of the protective shell. A sliding column is slidably sleeved inside the sleeve. One end of the sliding column is fixedly connected to the side wall of the protective shell by a spring. The other end of the sliding column is rotatably connected to one end of the connecting column by a limiting pin. The other end of the connecting column is fixedly connected to the end of the connecting plate. A limiting column is fixedly connected in the middle of the connecting plate. The limiting column and the limiting groove are slidably inserted into each other.

[0011] Preferably, the second drive assembly includes a drive rod, one end of which is fixedly connected to a worm gear. The two sides of the worm gear are rotatably fitted into a support seat fixedly connected to one side of a fixed plate. A support plate is fixedly connected to the other side of the fixed plate. A worm wheel meshes with the upper side of the worm gear. The worm wheel is fixedly fitted onto one end of an adjusting shaft. The other end of the adjusting shaft passes through both fixed plates and is rotatably connected to the fixed plates. A drive block is symmetrically threaded onto the adjusting shaft.

[0012] Preferably, the support plate has an arc-shaped hole on its side wall, and a transmission plate is movably installed inside the support plate. The four corners of the drive block are slidably sleeved on the guide rod. Both ends of the guide rod are fixedly connected to the fixed plate. One side of the drive block is fixedly connected to one end of the step column. The step column is slidably sleeved in the arc-shaped hole. The other end of the step column is rotatably connected to one end of the transmission plate. The other end of the transmission plate is rotatably connected to the end of the positioning rod away from the mounting block through a transmission pin. The positioning rod is slidably sleeved in the guide block. The guide block is fixedly connected to the fixed plate.

[0013] An operation method for a transmission line circuit monitoring device includes the following steps:

[0014] Preferably, the protective shell is fixedly installed on the top of the utility pole by means of clamps and bolts. Then, driven by the first drive assembly, the upper and lower protective frames are folded open by hinges. The monitoring box is then placed inside the protective shell, with the mounting block abutting against the fixing plate and the positioning rod coaxial with the positioning groove. Then, driven by the second drive assembly, the two positioning rods move in opposite directions and are inserted into the positioning groove. At this time, the mounting block is fixed and limited, and the monitoring box is fixed. Finally, the upper and lower protective frames are unfolded and closed on one side of the protective shell. The waterproof plate is then covered to protect the monitoring box.

[0015] Preferably, when it is necessary to open the protective shell, the waterproof plate is removed, and the upper protective frame is rotated by pulling down the lever and the shaft is connected. The upper protective frame drives the lower protective frame to fold upward through the hinge. The lower protective frame moves with the cooperation of the roller and the guide rail, and finally the upper and lower protective frames are folded up, thereby opening the protective shell.

[0016] Preferably, after the pull rod is pulled down, to prevent it from returning to its original position under the elastic force of the tension spring, the connecting plate is pulled outward to stretch the spring, and the limiting post on the connecting plate is inserted into the limiting groove on the pull rod, thereby limiting the pull rod and facilitating the subsequent installation and operation of the monitoring box.

[0017] Preferably, during the installation of the monitoring box, the adjusting shaft drives the two drive blocks to move in opposite directions through the cooperation of the worm gear and worm shaft. Under the rotational cooperation of the stepped column and the transmission plate, the two positioning rods move in opposite directions and are inserted into the positioning groove, thereby fixing the mounting block and thus fixing the monitoring box in place.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The corrosion-resistant coating on the outer surface of the protective shell and the design of the closable waterproof plate form multiple protective barriers, effectively isolating rain and snow erosion and atmospheric corrosion. At the same time, the light-transmitting protective plate and the foldable protective frame structure take into account both internal visibility and sealing, significantly reducing the risk of damage to the internal components of the monitoring box by severe weather and extending the overall service life of the device.

[0020] By employing a snap-fit ​​mechanism and a drive assembly working in tandem, the locking or releasing of the positioning rod on the monitoring box can be synchronously controlled simply by operating the drive rod. This design eliminates the need for traditional bolt fixing methods, requiring no tools and significantly simplifying the installation and disassembly process of the monitoring box. It also solves the problem of cumbersome maintenance operations caused by the reliance on brackets / clamps in the prior art, thus improving the efficiency of later maintenance.

[0021] The folding protective frame enables one-handed opening and closing through a linkage mechanism (tension spring, limit groove, and guide rail), and automatically maintains the unfolded state using a spring self-locking mechanism, avoiding continuous manual force. The modular design of the protective shell and monitoring box, combined with the guide and limit structure, ensures smooth and reliable opening and closing action and accurate reset after closing. While improving the convenience of operation, it maintains the horizontal positioning of the measuring instrument and ensures that the sag monitoring accuracy is not affected by maintenance work. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a bottom view of the overall structure of the present invention;

[0024] Figure 3 This is a top view of the overall structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 5 This is a side view of the internal structure of the present invention;

[0027] Figure 6 This is a top view of the internal structure of the present invention;

[0028] Figure 7 This is a bottom view of the internal structure of the present invention;

[0029] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 9 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0031] Figure 10 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C;

[0032] Figure 11 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D;

[0033] Figure 12 For the present invention Figure 7 Enlarged schematic diagram of the structure at point E in the middle;

[0034] Figure 13 For the present invention Figure 7 Enlarged schematic diagram of the structure at point F.

[0035] In the diagram: 1. Utility pole; 2. Protective shell; 3. Lower protective frame; 4. Upper protective frame; 5. Light-transmitting protective plate; 6. Waterproof plate; 7. Monitoring box; 8. Mounting block; 9. Positioning groove; 10. Positioning rod; 11. Guide rail; 12. Limiting rod; 13. Roller; 14. Slot; 15. Insert rod; 16. U-shaped frame; 17. Pull rod; 18. Rotating shaft; 19. Tension spring; 20. Limiting groove; 21. Stop bar 22. Sleeve; 23. Sliding column; 24. Spring; 25. Connecting column; 26. Connecting plate; 27. Limiting column; 28. Drive rod; 29. ​​Worm gear; 30. Support plate; 31. Adjusting shaft; 32. Drive block; 33. Guide rod; 34. Stepped column; 35. Arc-shaped hole; 36. Transmission plate; 37. Guide block; 38. Fixing plate; 39. Worm gear; 40. Dustproof cylinder; 41. Moistureproof board. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1 to 13This invention provides a technical solution: a transmission line circuit monitoring device and operating method, comprising: a utility pole 1, the top of which is fixedly connected to one side of a protective shell 2 via clamps and bolts, the utility pole 1 serving as the main body of the protective shell 2 and supporting the main body of the protective shell 2; the outer surface of the protective shell 2 is coated with a corrosion-resistant coating to ensure service life and improve the protection of the internal monitoring box 7; a lower protective frame 3 is provided at the bottom of the other side of the protective shell 2, and an upper protective frame 4 is hinged to the upper side of the lower protective frame 3; the upper protective frame 4 and the lower protective frame 3 are hinged together by a hinge, allowing them to be folded or opened; a light-transmitting protective plate 5 is fixedly installed inside both the lower protective frame 3 and the upper protective frame 4 to facilitate the operator's view of the interior of the protective shell 2; both sides of the lower protective frame 3 and the upper protective frame 4 are slidably connected to the protective shell 2; a first driving component for driving the folding and opening of the lower protective frame 3 and the upper protective frame 4 is connected to the top side of the upper protective frame 4; and a waterproof plate 6 is provided on the outside of the lower protective frame 3 and the upper protective frame 4. The top is slidably inserted into the protective shell 2, and the waterproof plate 6 covers the gap between the lower protective frame 3 and the upper protective frame 4 to prevent water leakage. The protective shell 2 is equipped with a monitoring box 7, which includes a battery pack, a microcontroller, a GPRS and an infrared sensor disclosed in patent number CN104534997B. The four corners of the back of the monitoring box 7 are fixedly connected to the mounting blocks 8. The mounting blocks 8 have a positioning groove 9 on one side. The inner wall of the protective shell 2 near the monitoring box 7 is provided with a snap-fit ​​mechanism. The mounting blocks 8 are quickly snapped into place by the snap-fit ​​mechanism, so that the mounting blocks 8 limit and fix the monitoring box 7, which facilitates the convenient installation and removal of the monitoring box 7. The snap-fit ​​mechanism includes a fixing plate 38. One side of the fixing plate 38 is fixedly connected to the inner wall of the protective shell 2. The fixing plate 38 is slidably mounted with symmetrically arranged positioning rods 10. One end of the positioning rod 10 is slidably inserted into the positioning groove 9, and the other end of the positioning rod 10 is connected to a second drive component for driving the positioning rod 10 to move relative to each other.

[0038] The protective shell 2 is fixedly installed on the top of the utility pole 1 using clamps and bolts, thus achieving a fixed installation of the protective shell 2. Then, driven by the first drive assembly, the upper protective frame 4 and the lower protective frame 3 are folded open via hinges, exposing the interior of the protective shell 2, which facilitates the installation of the monitoring box 7 inside. The monitoring box 7 is then placed inside the protective shell 2, with the mounting block 8 abutting against the upper and lower side walls of the fixing plate 38, and the positioning rod 10 coaxial with the positioning groove 9. Then, driven by the second drive assembly, the two positioning rods 10... When the device moves in the opposite direction, the positioning rod 10 is inserted into the positioning groove 9. At this time, the mounting block 8 is fixed and limited to one side of the fixing plate 38, and then the monitoring box 7 is fixed. When the second drive component is controlled in the opposite direction, the two positioning rods 10 can move towards each other, thereby releasing the limitation on the mounting block 8, which facilitates the disassembly of the monitoring box 7. Finally, by controlling the first drive component, the upper protective frame 4 and the lower protective frame 3 are unfolded and closed on one side of the protective shell 2. Then, the waterproof plate 6 is covered to protect the monitoring box 7, thereby preventing the external environment from affecting the service life of the monitoring box 7.

[0039] A guide rail 11 is fixedly installed inside the protective shell 2 on the side away from the utility pole 1. The guide rails 11 are symmetrically arranged. Limiting rods 12 are fixedly connected to both sides of the bottom of the lower protective frame 3. Rollers 13 are rotatably sleeved on the limiting rods 12. The limiting rods 12 limit the rollers 13. The rollers 13 are in rolling connection with the guide rails 11. The guide rails 11 limit the rollers 13. A slot 14 is opened on one side of the top of the protective shell 2. The slot 14 is slidably inserted into the insertion rod 15 fixedly connected to the top of the waterproof plate 6. The insertion rod 15 is inserted into the slot 14, thereby limiting and fixing the waterproof plate 6. The upper protective frame 4 A U-shaped frame 16 is fixedly connected to the top. The first drive assembly includes a pull rod 17. One end of the pull rod 17 is fixedly sleeved on the end of the rotating shaft 18. The rotating shaft 18 passes through the two U-shaped frames 16 and is fixedly connected to the U-shaped frames 16. The two sides of the rotating shaft 18 are rotatably sleeved in the upper limit seat fixedly connected to the inner wall of the protective shell 2. The upper limit seat limits the rotating shaft 18, thereby ensuring its rotational stability. The end of the U-shaped frame 16 away from the upper protective frame 4 is rotatably connected to one end of the tension spring 19 through a connecting pin. The other end of the tension spring 19 is rotatably connected to the lower limit seat fixedly connected to the inner wall of the protective shell 2 through a fixing pin.

[0040] When it is necessary to open the protective shell 2, pull the plug 15 out of the slot 14 to release the restriction on the waterproof plate 6, so that the waterproof plate 6 can be removed. By pulling the pull rod 17 towards the stop bar 21, the pull rod 17 drives the rotating shaft 18 to rotate. The rotating shaft 18 then drives the upper protective frame 4 and the U-shaped frame 16 to rotate simultaneously. The upper protective frame 4 drives the lower protective frame 3 to move upward through the hinge. The lower protective frame 3 moves upward with the cooperation of the roller 13 and the guide rail 11, so that the upper protective frame 4 and the lower protective frame 3 are folded up, thereby opening the protective shell 2 and exposing the inside of the protective shell 2, which facilitates the installation of the monitoring box 7.

[0041] A limiting groove 20 is provided at the other end of the pull rod 17. A stop bar 21 is provided on the side of the pull rod 17 near the rotating shaft 18. The stop bar 21 limits the pull rod 17 to prevent it from rotating excessively. The stop bar 21 is fixedly installed on the outer wall of the protective shell 2. A set of sleeves 22 is provided on the lower side of the stop bar 21. Each sleeve 22 is fixedly sleeved on the side wall of the protective shell 2. A sliding column 23 is slidably sleeved in the sleeve 22. The sleeve 22 guides and limits the sliding column 23, so that it can slide inside the sleeve 22. One end of the sliding column 23 is fixedly connected to the side wall of the protective shell 2 by a spring 24. The other end of the sliding column 23 is rotatably connected to one end of the connecting column 25 by a limiting pin. The other end of the connecting column 25 is fixedly connected to the end of the connecting plate 26. A limiting column 27 is fixedly connected in the middle of the connecting plate 26. The limiting column 27 is slidably inserted into the limiting groove 20.

[0042] As the pull rod 17 rotates and pulls closer to the stop lever 21, it drives the tension spring 19 to move via the U-shaped bracket 16. The tension spring 19 is stretched under the lower limit seat, thus generating a reverse elastic force. To prevent the lower guard frame 3 and upper guard frame 4 from resetting due to the reverse elastic force of the tension spring 19, the connecting plate 26 is first pulled outward to move it to the outside of the bottom of the pull rod 17. Under the connection between the connecting post 25 and the sliding post 23, the connecting plate 26 causes the sliding post 23 to stretch the spring 24. Then, the connecting plate 26 is rotated upward to make the connecting post 25... The axis of the sleeve 22 is parallel to the axis of the sliding column 23, which drives the spring 24 to stretch. Then the connecting plate 26 is released. Under the reverse elastic force of the spring 24, the limiting column 27 is inserted into the limiting groove 20 on the pull rod 17 to limit the pull rod 17 and prevent the pull rod 17 from being reset by the tension spring 19. This facilitates the subsequent installation and operation of the monitoring box 7. After the monitoring box 7 is installed, the limiting of the pull rod 17 is released by pulling the connecting plate 26 outward and rotating it. Then, under the reverse elastic force of the tension spring 19, the upper guard frame 3 and the lower guard frame 4 can be reset.

[0043] The second drive assembly includes a drive rod 28, one end of which is fixedly connected to a worm gear 29. The worm gear 29 is rotatably fitted into a support seat fixedly connected to one side of a fixed plate 38 on both sides. The support seat supports and limits the worm gear 29, thereby improving the stability of the drive rod 28 driving the worm gear 29 to rotate. A support plate 30 is fixedly connected to the other side of the fixed plate 38. A worm wheel 39 meshes with the upper side of the worm gear 29, and the worm wheel 39 meshes with the worm gear 29 for transmission. The worm wheel 39 is fixedly fitted onto one end of an adjusting shaft 31. The other end of the adjusting shaft 31 passes through both fixed plates 38 and is rotatably connected to the fixed plates 38. The fixed plates 38 limit and support the adjusting shaft 31, thereby ensuring its rotational stability. A drive block 32 is symmetrically threaded onto the adjusting shaft 31. The adjusting shaft 31 has two symmetrically opened threads with opposite directions of rotation. An arc-shaped hole 35 is opened on the side wall of the support plate 30. A transmission plate 36 is movably installed inside the support plate 30. The support plate 30 and the transmission plate 36 are slidably connected. The four corners of the drive block 32 are slidably sleeved on the guide rod 33. The guide rod 33 guides and limits the drive block 32. Both ends of the guide rod 33 are fixedly connected to the fixed plate 38. One side of the drive block 32 is fixedly connected to one end of the stepped column 34, so that the stepped column 34 can move synchronously. The stepped column 34 is slidably sleeved in the arc-shaped hole 35. The other end of the stepped column 34 is rotatably connected to one end of the transmission plate 36. The other end of the transmission plate 36 is rotatably connected to the end of the positioning rod 10 away from the mounting block 8 through the transmission pin. The positioning rod 10 is slidably sleeved in the guide block 37. Guide strips are fixedly connected to both sides of the outer ring surface of the positioning rod 10. The guide strips are slidably connected to the guide groove opened on the inner ring surface of the guide block 37. The guide block 37 is fixedly connected to the fixed plate 38.

[0044] When the monitoring box 7 is installed, the drive rod 28 is twisted to drive the worm gear 29 to rotate. The worm wheel 39 meshes with the worm gear 29, and the worm wheel 39 drives the adjusting shaft 31 to rotate. The adjusting shaft 31 then drives the two drive blocks 32 to move in opposite directions. The drive blocks 32 drive the stepped column 34 to move synchronously. The end of the stepped column 34 away from the drive block 32 slides in the arc-shaped hole 35. Under the rotational cooperation of the stepped column 34 and the transmission plate 36, the transmission plate 36 moves towards the fixed plate 38. Then, under the connection of the transmission pin, the two positioning rods 10 move in opposite directions. The positioning rods 10 slide under the guidance of the guide block 37 and are inserted into the positioning groove 9, thereby fixing the mounting block 8 on the fixed plate 38, and thus fixing the monitoring box 7 in place. When the monitoring box 7 needs to be disassembled and maintained, the limit on the mounting block 8 can be quickly released by twisting the drive rod 28 in the opposite direction, and the monitoring box 7 can be easily disassembled and maintained.

[0045] A dustproof cylinder 40 is fixedly fitted at the bottom of the protective shell 2. The dustproof cylinder (40) is symmetrically arranged about the bottom of the protective shell 2. Through the dustproof cylinder 40, heat can be dissipated inside and outside the protective shell 2, ensuring that the monitoring box 7 can dissipate heat normally. At the same time, in order to prevent external moisture from entering the protective shell 2, a moisture-proof board 41 is fixedly installed on the top of the dustproof cylinder 40. The moisture-proof board 41 absorbs the moisture, thereby preventing it from affecting the normal use of the electronic components on the monitoring box 7.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power transmission circuit monitoring device, comprising a utility pole (1), characterized in that: The top of the utility pole (1) is fixedly connected to one side of the protective shell (2) by a clamp and bolts. A lower protective frame (3) is provided at the bottom of the other side of the protective shell (2). An upper protective frame (4) is hinged to the upper side of the lower protective frame (3). A light-transmitting protective plate (5) is fixedly installed inside both the lower protective frame (3) and the upper protective frame (4). Both sides of the lower protective frame (3) and the upper protective frame (4) are slidably connected to the protective shell (2). A first driving component for driving the lower protective frame (3) and the upper protective frame (4) to fold and open is connected to the top side of the upper protective frame (4). A waterproof plate (6) is provided on the outside of the lower protective frame (3) and the upper protective frame (4). The top of the waterproof plate (6) is slidably inserted into the protective shell (2). A monitoring box (7) is installed inside the protective shell (2). Mounting blocks (8) are fixedly connected to the four corners of the back of the monitoring box (7). A positioning groove (9) is opened on one side of the mounting block (8). A snap-fit ​​mechanism is provided on the inner wall of the protective shell (2) near the monitoring box (7). The snap-fit ​​mechanism includes a fixing plate (38). One side of the fixing plate (38) is fixedly connected to the inner wall of the protective shell (2). A positioning rod (10) is slidably installed on the fixing plate (38). One end of the positioning rod (10) is connected to the positioning groove (9). The positioning rod (10) is connected to a second drive assembly at the other end for driving the positioning rod (10) to move relative to each other; a U-shaped frame (16) is fixedly connected to the top of the upper protective frame (4); the first drive assembly includes a pull rod (17); one end of the pull rod (17) is fixedly sleeved on the end of the rotating shaft (18); the rotating shaft (18) passes through the two U-shaped frames (16) and is fixedly connected to the U-shaped frames (16); the two sides of the rotating shaft (18) are rotatably sleeved in the upper limit seat fixedly connected to the inner wall of the protective shell (2); U The frame (16) is rotatably connected to one end of the tension spring (19) via a connecting pin at one end away from the upper protective frame (4). The other end of the tension spring (19) is rotatably connected to the lower limit seat fixedly connected to the inner wall of the protective shell (2) via a fixing pin. The other end of the pull rod (17) is provided with a limit groove (20). A stop rod (21) is provided on the side of the pull rod (17) near the rotating shaft (18). The stop rod (21) is fixedly installed on the outer wall of the protective shell (2). A set of sleeves (22) is provided on the lower side of the stop rod (21). Each of the sleeves (22) is fixedly sleeved on the side wall of the protective shell (2). A sliding column (23) is slidably sleeved inside the sleeve (22). One end of the sliding column (23) is fixedly connected to the side wall of the protective shell (2) by a spring (24). The other end of the sliding column (23) is rotatably connected to one end of the connecting column (25) by a limiting pin. The other end of the connecting column (25) is fixedly connected to the end of the connecting plate (26). A limiting column (27) is fixedly connected in the middle of the connecting plate (26). The limiting column (27) is slidably inserted into the limiting groove (20). The second drive assembly includes a drive rod (28), one end of which is fixedly connected to a worm (29). The two sides of the worm (29) are rotatably sleeved in a support seat fixedly connected to one side of a fixed plate (38). A support plate (30) is fixedly connected to the other side of the fixed plate (38). A worm wheel (39) meshes on the upper side of the worm (29). The worm wheel (39) is fixedly sleeved on one end of an adjusting shaft (31). The other end of the adjusting shaft (31) passes through the two fixed plates (38) and is rotatably connected to the fixed plates (38). A drive block (32) is symmetrically threaded onto the adjusting shaft (31).

2. The transmission circuit monitoring device according to claim 1, characterized in that: The protective shell (2) has a guide rail (11) fixedly installed inside on the side away from the utility pole (1). The bottom of the lower protective frame (3) is fixedly connected to the two sides of the bottom of the lower protective frame (3). The limit rod (12) is rotatably sleeved on the limit rod (12). The roller (13) is rotatably connected to the guide rail (11). The top side of the protective shell (2) has a slot (14). The slot (14) is slidably inserted into the plug (15) fixedly connected to the top of the waterproof plate (6).

3. The transmission circuit monitoring device according to claim 2, characterized in that: The support plate (30) has an arc-shaped hole (35) on its side wall. A transmission plate (36) is movably installed inside the support plate (30). The four corners of the drive block (32) are slidably sleeved on the guide rod (33). Both ends of the guide rod (33) are fixedly connected to the fixing plate (38). One side of the drive block (32) is fixedly connected to one end of the step column (34). The step column (34) is slidably sleeved in the arc-shaped hole (35). The other end of the step column (34) is rotatably connected to one end of the transmission plate (36). The other end of the transmission plate (36) is rotatably connected to the end of the positioning rod (10) away from the mounting block (8) through a transmission pin. The positioning rod (10) is slidably sleeved in the guide block (37). The guide block (37) is fixedly connected to the fixing plate (38).

4. The operation method of the transmission circuit monitoring device according to claim 3, characterized in that: Includes the following steps: By using clamps and bolts, the protective shell (2) is fixedly installed on the top of the utility pole (1). Then, under the drive of the first drive assembly, the upper protective frame (4) and the lower protective frame (3) are folded open by hinges. Then, the monitoring box (7) is placed inside the protective shell (2), and the mounting block (8) abuts against the fixing plate (38). The positioning rod (10) is coaxial with the positioning groove (9). Then, by the drive of the second drive assembly, the two positioning rods (10) move in opposite directions and are inserted into the positioning groove (9). At this time, the mounting block (8) is fixed and limited, and then the monitoring box (7) is fixed. Finally, the upper protective frame (4) and the lower protective frame (3) are unfolded and closed on one side of the protective shell (2). Then, the waterproof plate (6) is covered to protect the monitoring box (7).

5. The operation method of the transmission circuit monitoring device according to claim 3, characterized in that: When the protective shell (2) needs to be opened, remove the waterproof plate (6), pull down the lever (17), and drive the upper protective frame (4) to rotate under the connection of the pivot (18). The upper protective frame (4) drives the lower protective frame (3) to fold upward through the hinge. The lower protective frame (3) moves under the cooperation of the roller (13) and the guide rail (11), and finally the upper protective frame (4) and the lower protective frame (3) are folded up, thereby opening the protective shell (2).

6. The operation method of the transmission circuit monitoring device according to claim 3, characterized in that: After the pull rod (17) is pulled down, in order to avoid resetting under the elastic force of the tension spring (19), the connecting plate (26) is pulled outward to stretch the spring (24), and the limiting post (27) on the connecting plate (26) is inserted into the limiting groove (20) on the pull rod (17) to limit the pull rod (17), thereby facilitating the subsequent installation and operation of the monitoring box (7).

7. The operation method of the transmission circuit monitoring device according to claim 3, characterized in that: During the installation of the monitoring box (7), the adjustment shaft (31) drives the two drive blocks (32) to move in opposite directions through the cooperation of the worm gear (39) and the worm (29). Under the rotational cooperation of the stepped column (34) and the transmission plate (36), the two positioning rods (10) move in opposite directions and are inserted into the positioning groove (9), thereby fixing the mounting block (8) and then fixing the monitoring box (7).

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