Anti-falling self-locking device for electric power iron tower

Abstract

The utility model relates to the technical field of electric power iron towers, and discloses an electric power iron tower anti-falling self-locking device which comprises a driving assembly installed in a shell, the driving assembly comprises a self-locking structure and a gear, and a plurality of tooth grooves used for being meshed with the gear are formed in the outer wall of a connecting guide rod. A lubricating assembly used for lubricating the driving assembly is installed on the outer wall of the shell, and the driving assembly intermittently drives the lubricating assembly. Due to the arrangement of the lubricating assembly, lubricating oil flows to the bottom of the oil shell through the gap, the bottom of the oil shell is communicated with the two oil outlet pipes, and under the action of pressure, the lubricating oil flows to the upper portion of the worm gear and the upper portion of the gear through the oil outlet pipes and flows out of the oil outlets, so that the worm gear and the gear are lubricated.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower equipment technology, specifically a power transmission tower anti-fall self-locking device. Background Technology

[0002] Currently, with the increase in voltage levels and the increasing height of transmission towers, traditional methods of working on towers involve climbing ladders step by step. This requires workers to expend a great deal of physical strength and is very labor-intensive. In addition, accidents involving falls and injuries occur frequently. Due to the presence of climbing ladders, unauthorized personnel may climb the towers, leading to power outages and injuries.

[0003] Application number CN201721147697.0 discloses an electric lifting device for high-voltage transmission line tower operations. The device includes a steel strand fixing frame installed in the middle of the upper part of each high-voltage transmission line tower and a fixing frame installed at the bottom. Two steel strands are fixed vertically and parallel on the top. A steel rope traction device is used to bring the steel rope of the lifting winch and the upper pulley to the top of the high-voltage tower and automatically lock them to the top fixing frame. The ground-based battery-powered DC winch transports the workers up and down the tower. The operation is fast, efficient, safe and reliable, greatly reducing the labor intensity of the workers. It eliminates the need for foot pedals for climbing up and down and prevents unsafe behavior of non-workers climbing the tower. It effectively improves the safe operation of the transmission line.

[0004] However, when the steel rope and pulley interact and rub against each other, and are used frequently over a long period of time, the lack of lubrication between the steel rope and pulley leads to continuous friction and wear, which gradually wears down the outer walls of the steel rope and pulley, thus affecting the performance and service life of the steel rope and pulley. Utility Model Content

[0005] The purpose of this utility model is to provide a self-locking device for preventing power tower falls, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a self-locking device for preventing falls from power transmission towers, including a housing and a connecting guide rod. The connecting guide rod is used to connect to the outer wall of the power transmission tower. The connecting guide rod is slidably connected through the housing. The housing moves from bottom to top along the vertical direction of the connecting guide rod.

[0008] The housing is equipped with a drive assembly, which includes a self-locking structure and a gear. The outer wall of the connecting guide rod is provided with a number of tooth grooves for meshing with the gear.

[0009] A lubrication assembly for lubricating the drive assembly is installed on the outer wall of the housing, and the drive assembly intermittently drives the lubrication assembly.

[0010] The bottom of the housing is provided with a collection box for collecting lubricating oil;

[0011] The purpose of the above configuration is that the connecting guide rod is connected to the outer wall of the power tower, and the housing moves vertically along the connecting guide rod through a sliding connection, providing guidance for the up-and-down movement of the housing. The gear in the drive assembly meshes with the tooth groove on the outer wall of the connecting guide rod. When the drive assembly is started, the rotation of the gear is converted into the movement of the housing along the connecting guide rod. The self-locking structure in the drive assembly prevents the gear from accidentally reversing, thus ensuring the stable movement of the housing on the connecting guide rod. The lubrication assembly is installed on the outer wall of the housing to provide lubrication for the drive assembly. The drive assembly intermittently drives the lubrication assembly. When the drive assembly is running, it drives the lubrication assembly to run, so that when the drive assembly is in use, the lubrication assembly lubricates the drive assembly to reduce wear and improve transmission efficiency. A collection box is set at the bottom of the housing to collect the lubricating oil that flows out or overflows when the lubrication assembly lubricates the drive assembly. The collection box can prevent this lubricating oil from flowing around and causing pollution to the power tower.

[0012] Furthermore, the self-locking structure includes a worm and a worm wheel, a connecting shaft is installed between the worm wheel and the gear, the two ends of the connecting shaft are rotatably connected to the housing, the two ends of the worm pass through the housing and are rotatably connected, and the worm and the worm wheel mesh with each other;

[0013] The purpose of the above configuration is that when the worm is rotated, it drives the worm wheel, gear, and connecting shaft to rotate. The worm and worm wheel form a self-locking structure. Under normal working conditions, the threaded structure of the worm can prevent the worm wheel from rotating in the opposite direction, thereby ensuring that the worm wheel and gear will not accidentally reverse, and stably controlling the movement of the housing on the connecting guide rod.

[0014] Furthermore, the outer wall of the worm is equipped with protrusions for driving the lubrication assembly. When the worm rotates, the protrusions on its outer wall will make circular motions along with the rotation of the worm.

[0015] Furthermore, the lubrication assembly includes an oil tank for storing lubricating oil, the oil tank being installed on the outer wall of the housing, the interior of the oil tank forming a U-shaped cavity, a movable plate being slidably connected to the inner wall of the oil tank, a connecting rod being installed on the lower surface of the movable plate, the connecting rod extending through the bottom of the oil tank to the outside, an arc-shaped block being installed at the bottom end of the connecting rod for engaging with a protrusion, and a spring being provided between the arc-shaped block and the lower surface of the housing for resetting the arc-shaped block;

[0016] The purpose of the above setup is that the protrusion will contact the arc-shaped block during its movement and push the arc-shaped block upward. The arc-shaped block is connected to the movable plate through the connecting rod, so the upward movement of the arc-shaped block causes the movable plate to slide upward in the oil shell, forming a U-shaped cavity inside the oil shell. When the movable plate slides upward, it will generate pressure on the lubricating oil in the cavity. At the same time, there is a gap between the movable plate and the middle of the cavity, and the lubricating oil flows to the bottom of the oil shell through the gap. When the pushing action between the protrusion and the arc-shaped block ends, the arc-shaped block returns to its original position under the action of the spring. The return of the arc-shaped block causes the connecting rod and the movable plate to return to their original positions, preparing for the next lubrication process.

[0017] Furthermore, the top of the oil tank is connected to an oil inlet pipe, and the bottom of the oil tank is connected to two oil outlet pipes. The two oil outlet pipes extend to the top of the worm gear and the gear respectively, and are provided with oil outlets.

[0018] The purpose of the above setup is that the bottom of the oil tank is connected to two oil outlet pipes. Under pressure, the lubricating oil will flow through the oil outlet pipes to the top of the worm gear and the gear respectively, and then flow out from the oil outlet, thereby lubricating the worm gear and the gear.

[0019] Furthermore, the collection box extends into the interior of the housing and is located below the worm gear and gear. The bottom of the collection box is connected to an oil drain pipe, and a plug is provided at the bottom port of the oil drain pipe.

[0020] The purpose of the above setup is that during the lubrication of the worm gear and gear, lubricating oil may drip down. The collection box extends into the housing and is located below the worm gear and gear, which can effectively collect these dripping lubricating oils. When it is necessary to drain the lubricating oil from the collection box, the plug at the bottom port of the drain pipe can be pulled out to allow the lubricating oil to drain from the drain pipe.

[0021] This utility model has the following beneficial effects:

[0022] This invention utilizes a lubrication assembly. When the worm rotates, the protrusions on its outer wall move in a circular motion. During this motion, the protrusions contact the arc-shaped block and push it upwards. The arc-shaped block is connected to a movable plate via a connecting rod. The upward movement of the arc-shaped block causes the movable plate to slide upwards within the oil pan, forming a U-shaped cavity. As the movable plate slides upwards, it exerts pressure on the lubricating oil within the cavity. Simultaneously, a gap exists between the movable plate and the center of the cavity, allowing the lubricating oil to flow through this gap to the bottom of the oil pan. Two oil outlet pipes connect to the bottom of the oil pan. Under pressure, the lubricating oil flows through these pipes to the top of the worm gear and gear, respectively, and exits from the outlet, thus lubricating the worm gear and gear. After the pushing action between the protrusions and the arc-shaped block ends, the arc-shaped block resets under the action of a spring. This reset of the arc-shaped block causes the connecting rod and the movable plate to reset, preparing for the next lubrication process. This reduces wear on the self-locking structure and extends its service life.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the lubrication assembly of this utility model;

[0027] Figure 3 This is a schematic diagram of the self-locking structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the connecting guide rod structure of this utility model;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Housing; 2. Drive assembly; 201. Worm gear; 202. Worm wheel; 203. Gear; 204. Protrusion; 3. Connecting guide rod; 301. Tooth groove; 4. Lubrication assembly; 401. Oil shell; 402. Movable plate; 403. Oil inlet pipe; 404. Spring; 405. Oil outlet pipe; 406. Arc-shaped block; 5. Collection box. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 - Figure 4 As shown, this utility model is a self-locking device for preventing falls from power transmission towers, including a housing 1 and a connecting guide rod 3. The connecting guide rod 3 is used to connect to the outer wall of the power transmission tower. The connecting guide rod 3 is slidably connected through the housing 1. The housing 1 moves from bottom to top along the vertical direction of the connecting guide rod 3.

[0033] The drive assembly 2 is installed inside the housing 1. The drive assembly 2 includes a self-locking structure and a gear 203. The outer wall of the connecting guide rod 3 is provided with a number of tooth grooves 301 for meshing with the gear 203.

[0034] A lubrication assembly 4 for lubricating the drive assembly 2 is installed on the outer wall of the housing 1, and the drive assembly 2 intermittently drives the lubrication assembly 4.

[0035] A collection box 5 for collecting lubricating oil is provided at the bottom of the housing 1;

[0036] The purpose of the above configuration is that the connecting guide rod 3 is connected to the outer wall of the power tower, and the housing 1 moves along the vertical direction of the connecting guide rod 3 through a sliding connection with it, providing guidance for the up-and-down movement of the housing 1. The gear 203 in the drive assembly 2 meshes with the tooth groove 301 on the outer wall of the connecting guide rod 3. When the drive assembly 2 is started, the rotation of the gear 203 is converted into the movement of the housing 1 along the connecting guide rod 3. The self-locking structure in the drive assembly 2 prevents the gear 203 from accidentally reversing, thereby ensuring that the housing 1 moves along the connecting guide rod 3. Stable movement is achieved by installing the lubrication component 4 on the outer wall of the housing 1 to provide lubrication for the drive component 2. The drive component 2 intermittently drives the lubrication component 4. When the drive component 2 is running, it drives the lubrication component 4 to run. Thus, when the drive component 2 is in use, the lubrication component 4 lubricates the drive component 2 to reduce wear and improve transmission efficiency. A collection box 5 is provided at the bottom of the housing 1 to collect the lubricating oil that flows out or overflows when the lubrication component 4 lubricates the drive component 2. The collection box 5 can prevent the lubricating oil from flowing around and avoid pollution to the power tower.

[0037] The self-locking structure includes a worm 201 and a worm wheel 202. A connecting shaft is installed between the worm wheel 202 and the gear 203. The two ends of the connecting shaft are rotatably connected to the housing 1. The two ends of the worm 201 pass through the housing 1 and are rotatably connected. The worm 201 and the worm wheel 202 mesh with each other.

[0038] The purpose of the above configuration is that when the worm 201 is rotated, the worm 201 drives the worm wheel 202, gear 203 and connecting shaft to rotate. The worm 201 and worm wheel 202 form a self-locking structure. Under normal working conditions, the thread structure of the worm 201 can prevent the worm wheel 202 from rotating in the opposite direction, thereby ensuring that the worm wheel 202 and gear 203 will not accidentally reverse, and stably controlling the movement of the housing 1 on the connecting guide rod 3.

[0039] The outer wall of the worm 201 is equipped with a protrusion 204 for driving the lubrication assembly 4. When the worm 201 rotates, the protrusion 204 on its outer wall will make a circular motion as the worm 201 rotates.

[0040] The lubrication assembly 4 includes an oil tank 401 for storing lubricating oil. The oil tank 401 is installed on the outer wall of the housing 1. The interior of the oil tank 401 forms a U-shaped cavity. A movable plate 402 is slidably connected to the inner wall of the oil tank 401. A connecting rod is installed on the lower surface of the movable plate 402. The connecting rod extends through the bottom of the oil tank 401 to the outside. An arc-shaped block 406 for cooperating with a protrusion 204 is installed at the bottom end of the connecting rod. A spring 404 for resetting the arc-shaped block 406 is provided between the arc-shaped block 406 and the lower surface of the housing 1.

[0041] The purpose of the above arrangement is that during the movement, the protrusion 204 will contact the arc-shaped block 406 and push the arc-shaped block 406 upward. The arc-shaped block 406 is connected to the movable plate 402 through the connecting rod. Therefore, the upward movement of the arc-shaped block 406 causes the movable plate 402 to slide upward in the oil shell 401, forming a U-shaped cavity inside the oil shell 401. When the movable plate 402 slides upward, it will generate pressure on the lubricating oil in the cavity. At the same time, there is a gap between the movable plate 402 and the middle of the cavity, and the lubricating oil flows to the bottom of the oil shell 401 through the gap. After the pushing action of the protrusion 204 and the arc-shaped block 406 ends, the arc-shaped block 406 is reset under the action of the spring 404. The reset of the arc-shaped block 406 causes the connecting rod and the movable plate 402 to reset, preparing for the next lubrication process.

[0042] The top of the oil tank 401 is connected to an oil inlet pipe 403, and the bottom of the oil tank 401 is connected to two oil outlet pipes 405. The two oil outlet pipes 405 extend to the top of the worm gear 202 and the gear 203 respectively, and are provided with oil outlets.

[0043] The purpose of the above arrangement is that the bottom of the oil tank 401 is connected to two oil outlet pipes 405. Under pressure, the lubricating oil will flow through the oil outlet pipes 405 to the top of the worm gear 202 and the gear 203 respectively, and flow out from the oil outlet, thereby lubricating the worm gear 202 and the gear 203.

[0044] The collection box 5 extends into the interior of the housing 1 and is located below the worm gear 202 and the gear 203. The bottom of the collection box 5 is connected to an oil drain pipe, and a plug is provided at the bottom port of the oil drain pipe.

[0045] The purpose of the above arrangement is that during the lubrication of the worm gear 202 and gear 203, lubricating oil may drip down. The collection box 5 extends into the housing 1 and is located below the worm gear 202 and gear 203, which can effectively collect the dripping lubricating oil. When it is necessary to drain the lubricating oil in the collection box 5, the plug at the bottom port of the drain pipe can be pulled out to drain the lubricating oil from the drain pipe.

[0046] In use, rotating the worm 201 causes the worm wheel 202, gear 203, and connecting shaft to rotate. The worm 201 and worm wheel 202 form a self-locking structure. Under normal working conditions, the threaded structure of the worm 201 can prevent the worm wheel 202 from rotating in the opposite direction, thereby ensuring that the worm wheel 202 and gear 203 will not accidentally reverse, and stably controlling the movement of the housing 1 on the connecting guide rod 3.

[0047] When the worm gear 201 rotates, the protrusion 204 on its outer wall will make a circular motion with the rotation of the worm gear 201. During the movement, the protrusion 204 will contact the arc block 406 and push the arc block 406 to move upward. The arc block 406 is connected to the movable plate 402 through the connecting rod. Therefore, the upward movement of the arc block 406 will drive the movable plate 402 to slide upward in the oil shell 401, forming a U-shaped cavity inside the oil shell 401. When the movable plate 402 slides upward, it will generate pressure on the lubricating oil in the cavity. At the same time, there is a gap between the movable plate 402 and the middle of the cavity. The lubricating oil flows to the bottom of the oil shell 401 through the gap. The bottom of the oil shell 401 is connected to two oil outlet pipes 405. Under the action of pressure, the lubricating oil will flow through the oil outlet pipes 405 to the top of the worm gear 202 and the gear 203 respectively, and flow out from the oil outlet, thereby lubricating the worm gear 202 and the gear 203.

[0048] After the pushing action of the protrusion 204 and the arc block 406 ends, the arc block 406 is reset under the action of the spring 404. The reset of the arc block 406 drives the connecting rod and the movable plate 402 to reset, preparing for the next lubrication process.

[0049] During the lubrication of the worm gear 202 and gear 203, lubricating oil may drip down. The collection box 5 extends into the housing 1 and is located below the worm gear 202 and gear 203, which can effectively collect the dripping lubricating oil. When it is necessary to drain the lubricating oil from the collection box 5, the plug at the bottom port of the drain pipe can be pulled out to drain the lubricating oil from the drain pipe.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A power tower anti-falling self-locking device, comprising a shell (1) and a connecting guide rod (3), characterized in that: The connecting guide rod (3) is used for being connected on the outer wall of the power iron tower, the connecting guide rod (3) is connected through the shell (1) and is slidably connected, the shell (1) is moved from bottom to top along the vertical direction of the connecting guide rod (3); The inside of the shell (1) is provided with a driving assembly (2), the driving assembly (2) comprises a self-locking structure and a gear (203), and the outer wall of the connecting guide rod (3) is provided with a plurality of tooth grooves (301) for meshing with the gear (203); The outer wall of the shell (1) is provided with a lubricating assembly (4) for lubricating the driving assembly (2), and the driving assembly (2) intermittently drives the lubricating assembly (4); The bottom of the shell (1) is provided with a collecting box (5) for collecting lubricating oil.

2. The power tower anti-falling self-locking device according to claim 1, characterized in that: The self-locking structure comprises a worm (201) and a worm wheel (202), a connecting shaft is arranged between the worm wheel (202) and the gear (203), both ends of the connecting shaft are rotatably connected with the shell (1), both ends of the worm (201) penetrate through the shell (1) and are rotatably connected, and the worm (201) and the worm wheel (202) are meshed with each other.

3. The power tower anti-falling self-locking device according to claim 2, characterized in that: The outer wall of the worm (201) is provided with a protruding block (204) for driving the lubricating assembly (4).

4. The power tower anti-falling self-locking device according to claim 3, characterized in that: The lubricating assembly (4) comprises an oil tank (401) for storing lubricating oil, the oil tank (401) is arranged on the outer wall of the shell (1), the inside of the oil tank (401) forms a U-shaped cavity, a movable plate (402) is slidably connected to the inner wall of the oil tank (401), a connecting rod is arranged on the lower surface of the movable plate (402), the connecting rod extends to the outside through the bottom of the oil tank (401), an arc-shaped block (406) for cooperating with the protruding block (204) is arranged at the bottom end of the connecting rod, and a spring (404) for resetting the arc-shaped block (406) is arranged between the arc-shaped block (406) and the lower surface of the shell (1).

5. The power tower anti-falling self-locking device according to claim 4, characterized in that: The top of the oil tank (401) is communicated with an oil inlet pipe (403), the bottom of the oil tank (401) is communicated with two oil outlet pipes (405), and the two oil outlet pipes (405) extend above the worm wheel (202) and the gear (203) and are provided with oil outlets.

6. The power tower anti-falling self-locking device according to claim 5, characterized in that: The collecting box (5) extends into the inside of the shell (1) and is below the worm wheel (202) and the gear (203), the bottom of the collecting box (5) is communicated with a drain pipe, and the bottom end of the drain pipe is provided with a plug.

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