A power line tightener with labor-saving mechanism and anti-drop hook

Abstract

The utility model discloses a power transmission line tightener with labour -saving mechanism and prevent the hook of falling, relates to power transmission line tightening technical field, including device shell, the upper and lower sides of device shell are equipped with prevent the hook of falling, and the prevent hook of falling of upper is rotatoryly installed with device shell, and the prevent hook of falling rotatoryly installs dynamic pulley in lower, the inside of device shell is equipped with reel, the middle part of reel is equipped with with reel fixed reel shaft, and the both ends of reel are all through the inner wall of device shell, and reel is rotatoryly connected with device shell, the lateral wall of reel is evenly equipped with check groove, the inside of device shell is equipped with with check groove matched check mechanism, and the reel is rolled up with traction rope on. The utility model can realize the automatic locking of hook and prevent falling, have high -multiplying labour -saving transmission function, compact structure and easy operation, can solve the problem such as easy to fall off the hook, laborious, poor safety, high labor intensity etc.

Description

Technical Field

[0001] This invention relates to the field of power transmission line tensioning technology, and in particular to a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook. Background Technology

[0002] Power line tensioners are key tools used to tighten conductors and adjust tension during the installation and maintenance of overhead lines, and are widely used in the power construction field. Existing power line tensioners mostly use a simple hook combined with a ratchet and pawl structure to achieve tightening and positioning, which presents significant safety hazards and defects in actual use.

[0003] Ordinary hooks rely solely on elastic baffles for simple positioning, lacking a locking mechanism. Under conditions of high-altitude vibration, wind load swaying, sudden tension changes, or accidental contact, the baffles are easily pushed open, causing the power line or connectors to detach from the hook. This can lead to safety accidents such as line rebound and falling objects, failing to meet the high safety requirements of high-voltage line construction. Furthermore, traditional tensioners often employ single-stage gears or direct drives for labor-saving operation, with limited force amplification. When tightening large-section, high-tension power lines, operators need to apply significant force, resulting in high labor intensity, low work efficiency, and difficulty for a single person to tighten heavy cables, thus limiting their practicality. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook includes a housing. Anti-detachment hooks are provided on both the upper and lower sides of the housing. The upper anti-detachment hook is rotatably mounted to the housing, and the lower anti-detachment hook is rotatably mounted with a movable pulley. A winding wheel is located inside the housing, with a shaft fixed to the winding wheel passing through its center. Both ends of the shaft pass through the inner wall of the housing and are rotatably connected to it. Anti-return grooves are evenly distributed around the side walls of the winding wheel. An anti-return mechanism that mates with the anti-return grooves is located inside the housing. A traction rope is wound on the winding wheel, with one end of the traction rope away from the winding wheel passing over the movable pulley and connecting to the lower part of the housing. An installation groove is provided on the inner wall of the anti-detachment hook, and an anti-detachment mechanism is located inside the installation groove. Labor-saving mechanisms connected to the shaft are provided on opposite side walls of the housing. An operating mechanism connected to the two labor-saving mechanisms is located outside the housing.

[0007] As a further improvement of the present invention, the anti-detachment mechanism includes a baffle disposed inside the mounting groove. A first pin is provided through the baffle and rotatably connected to the baffle. Both ends of the first pin are fixed to the inner wall of the mounting groove. A second spring is fixed to the side wall of the baffle. The end of the second spring away from the baffle is fixed to the inner wall of the mounting groove. The inner wall of the anti-detachment hook is provided with a groove that cooperates with the baffle. The surface of the baffle is provided with a movable groove, and the interior of the movable groove is provided with a locking structure.

[0008] As a further improvement of the present invention, the labor-saving mechanism includes a fixed frame fixed to the outer wall of the device housing, a planetary reducer fixedly embedded on the outer wall of the fixed frame, a rotating sleeve rotatably connected to the fixed frame passing through the inner wall of the fixed frame, the rotating sleeve being fixedly connected to the output end of the planetary reducer, a second slot being provided at the end of the rotating sleeve away from the planetary reducer, a first slot being provided at the end of the reel, and a rectangular rod being slidably inserted into the interior of the first slot.

[0009] As a further improvement of the present invention, the operating mechanism includes a rotating frame, which is mounted on the input end of the planetary reducer via a one-way bearing, and an operating lever is fixed on the side wall of the rotating frame.

[0010] As a further improvement of the present invention, the check mechanism includes a check plate, and a second pin is provided through the check plate and rotatably connected to the check plate. Both ends of the second pin are fixed to the inner wall of the device housing. Two torsion springs are fitted on the second pin. The two torsion springs are respectively arranged on both sides of the check plate. One end of the torsion spring is fixed to the inner wall of the device housing, and the other end of the torsion spring is fixed to the side wall of the check plate.

[0011] As a further improvement of the present invention, the locking structure includes a locking block disposed inside the movable groove, the locking block penetrating the inner wall of the movable groove and extending to the outside of the baffle, the inner wall of the groove is provided with a locking groove for the locking block to engage, the inner wall of the movable groove is provided with a receiving groove, the receiving groove is provided with a first spring, one end of the first spring is fixed to the inner wall of the receiving groove, and the other end of the first spring is fixed to the locking block.

[0012] As a further improvement of the present invention, a magnetic chuck is fixedly sleeved on the side wall of the rectangular rod.

[0013] As a further improvement of the present invention, an anti-slip sleeve is fixedly fitted onto the operating lever.

[0014] The beneficial effects of this invention are: The anti-detachment hook integrates an automatic locking mechanism consisting of a baffle, a first pin, a second spring, a groove, a movable slot, a locking block, a locking groove, a receiving slot, and the first spring. After the object is attached to the hook, the baffle automatically resets and closes the opening under the action of the second spring. Simultaneously, the locking block automatically pops out and engages with the locking groove under the push of the first spring, achieving mechanical locking of the baffle. This double-safety design effectively prevents the attached power line from detaching from the anti-detachment hook under vibration, wind load, or accidental contact, greatly improving the safety of high-altitude operations.

[0015] The device utilizes a labor-saving mechanism (including a fixed frame, planetary reducer, rotating sleeve, and second slot) fixed to both sides of the housing, working in conjunction with the operating mechanism (including a rotating frame, one-way bearing, operating lever, and anti-slip sleeve). When the operator cranks the operating lever, the power is significantly amplified in torque by the planetary reducer and then transmitted to the reel drive through a rectangular rod. The high reduction ratio of the planetary reducer significantly reduces the input force required to rotate the reel, allowing a single person to perform the tightening operation on heavy power transmission lines, improving work efficiency and reducing the workload for workers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook proposed in this invention; Figure 2 This is a schematic diagram of the anti-derailment hook and anti-derailment mechanism of a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook proposed in this invention; Figure 3 This is a schematic diagram of the anti-detachment hook, groove, and slot of a power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook proposed in this invention; Figure 4 This is a schematic diagram of the anti-derailment mechanism of a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook proposed in this invention; Figure 5 This is a schematic diagram of the movable groove and the receiving groove of a power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook proposed in this invention; Figure 6 This is a schematic diagram of the locking block and the first spring of a power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook proposed in this invention; Figure 7 This is a schematic diagram of the structure of a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook, including the reel, anti-reverse groove, reel, labor-saving mechanism, operating mechanism, and anti-reverse mechanism proposed in this invention. Figure 8 This is a schematic diagram of the reel, anti-reverse groove, reel, and labor-saving mechanism of a power transmission line tensioner with a labor-saving mechanism and an anti-detachment hook proposed in this invention. Figure 9This is a schematic diagram of the structure of a power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook, including a reel, anti-reverse groove, reel, rectangular rod, magnetic chuck, rotating sleeve, planetary reducer, first slot, and second slot.

[0017] In the diagram: 1. Device housing; 2. Anti-detachment hook; 3. Moving pulley; 4. Traction rope; 5. Rotating frame; 6. Operating lever; 7. Anti-slip sleeve; 8. Baffle; 9. Groove; 10. Mounting slot; 11. Slot; 12. Movable slot; 13. Locking block; 14. First spring; 15. First pin; 16. Second spring; 17. Receiving slot; 18. Winding wheel; 19. Check groove; 20. Winding shaft; 21. Fixing frame; 22. Planetary reducer; 23. One-way bearing; 24. Check plate; 25. Second pin; 26. Torsion spring; 27. Rectangular rod; 28. Magnetic chuck; 29. ​​Rotating sleeve; 30. First slot; 31. Second slot. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] See Figures 1-9A power transmission line tensioner with a labor-saving mechanism and anti-detachment hooks includes a housing 1. Anti-detachment hooks 2 are provided on both the upper and lower sides of the housing 1. The anti-detachment hooks 2 are used for quick attachment and positioning with external structures and power transmission lines. The upper anti-detachment hook 2 is rotatably mounted to the housing 1, and the lower anti-detachment hook 2 is rotatably mounted with a movable pulley 3. The movable pulley 3 can rotate relative to the lower anti-detachment hook 2 to reduce frictional resistance during traction. A winding wheel 18 is provided inside the housing 1. The winding wheel 18 is used to wind and unwind the traction rope 4. A shaft 20 fixed to the winding wheel 18 passes through the middle of the winding wheel 18. The shaft 20 rotates synchronously with the winding wheel 18 and provides rotational support. Both ends of the shaft 20 pass through the inner wall of the housing 1, and the shaft 20 is rotatably connected to the housing 1. The shaft 20 can rotate freely relative to the housing 1 to ensure smooth operation of the winding wheel 18. The side walls of the winding wheel 18 are evenly spaced... A check groove 19 is provided to cooperate with a check mechanism to achieve unidirectional limiting of the reel 18. The device housing 1 is equipped with a check mechanism that cooperates with the check groove 19. The check mechanism is used to limit the reel 18 to rotate only in one direction to prevent loosening and retraction. A traction rope 4 is wound on the reel 18. The traction rope 4 is used to transmit traction force to achieve the tightening operation of the power transmission line. The end of the traction rope 4 away from the reel 18 passes around the movable pulley 3 and is connected to the lower part of the device housing 1. An installation groove 10 is provided on the inner wall of the anti-detachment hook 2. An anti-detachment mechanism is provided inside the installation groove 10. The anti-detachment mechanism is used to prevent the power transmission line or connection structure from accidentally detaching after being hooked. Both opposite side walls of the device housing 1 are equipped with a force-saving mechanism connected to the reel 20. The force-saving mechanism is used to reduce the operating force required to rotate the reel 20. An operating mechanism connected to the two force-saving mechanisms is provided on the outside of the device housing 1. The operating mechanism is used to provide manual operation input for the force-saving mechanism.

[0020] As a further improvement of the present invention, the anti-detachment mechanism includes a baffle 8 disposed inside the mounting groove 10. The baffle 8 is used to close the opening of the anti-detachment hook 2 to achieve a limiting and blocking effect after hooking. A first pin 15 is provided through the baffle 8 and rotatably connected to the baffle 8. Both ends of the first pin 15 are fixed to the inner wall of the mounting groove 10. A second spring 16 is fixed on the side wall of the baffle 8. The second spring 16 provides a restoring elastic force for the baffle 8. The end of the second spring 16 away from the baffle 8 is fixed to the inner wall of the mounting groove 10. A groove 9 is provided on the inner wall of the anti-detachment hook 2 to cooperate with the baffle 8. The groove 9 is used to accommodate the end of the baffle 8 and to position the baffle 8. A movable groove 12 is provided on the surface of the baffle 8. A locking structure is provided inside the movable groove 12. The locking structure is used to fix and lock the baffle 8 after it is closed.

[0021] The force-saving mechanism includes a fixed frame 21 fixed to the outer wall of the device housing 1. A planetary reducer 22 is fixedly embedded in the outer wall of the fixed frame 21. The planetary reducer 22 is used to increase the input torque to achieve force-saving transmission. The fixed frame 21 provides stable mounting support for the planetary reducer 22 and the rotating sleeve 29. The rotating sleeve 29, which is rotatably connected to the fixed frame 21, is provided through the inner wall of the fixed frame 21. The rotating sleeve 29 can rotate relative to the fixed frame 21 to transmit power. The rotating sleeve 29 is fixedly connected to the output end of the planetary reducer 22, and the output power of the planetary reducer 22 is directly transmitted to the rotating sleeve 29. The end of the rotating sleeve 29 away from the planetary reducer 22 is provided with a second slot 31, which is used to realize the insertion and engagement with the rectangular rod 27. The end of the reel 20 is provided with a first slot 30, which is also used to realize the insertion and engagement with the rectangular rod 27. The rectangular rod 27 is slidably inserted into the first slot 30, and can slide along the first slot 30 to realize the connection and disconnection with the rotating sleeve 29. Furthermore, a magnetic chuck 28 is fixedly sleeved on the side wall of the rectangular rod 27, which is used to realize the adsorption and positioning of the rectangular rod 27 to maintain a stable connection.

[0022] The operating mechanism includes a rotating frame 5, which is used to transmit operating force to the planetary reducer 22. The rotating frame 5 is mounted on the input end of the planetary reducer 22 via a one-way bearing 23. The one-way bearing 23 ensures that the operating force is transmitted only in one direction and achieves idle reset. An operating lever 6 is fixed on the side wall of the rotating frame 5. The operating lever 6 is used to provide a handhold for the operator to apply force. An anti-slip sleeve 7 is fixedly fitted on the operating lever 6. The anti-slip sleeve 7 is used to increase the friction between the hand and the operating lever 6 to prevent slippage.

[0023] The check mechanism includes a check plate 24, which cooperates with the check groove 19 to achieve one-way check of the winding wheel 18. A second pin 25 is provided through the check plate 24 and is rotatably connected to the check plate 24. The second pin 25 provides rotational support for the check plate 24. Both ends of the second pin 25 are fixed to the inner wall of the device housing 1. The second pin 25 remains fixed to ensure the stable rotation of the check plate 24. Two torsion springs 26 are fitted on the second pin 25. The torsion springs 26 provide elastic clamping force to the check plate 24. The two torsion springs 26 are respectively arranged on both sides of the check plate 24. One end of the torsion spring 26 is fixed to the inner wall of the device housing 1, and the other end of the torsion spring 26 is fixed to the side wall of the check plate 24. The torsion springs 26 push the check plate 24 to always press against the winding wheel 18 to achieve check.

[0024] The locking structure includes a locking block 13 disposed inside the movable groove 12. The locking block 13 is used to lock and position the baffle 8 and the groove 9. The locking block 13 penetrates the inner wall of the movable groove 12 and extends to the outside of the baffle 8. The locking block 13 can extend out of the baffle 8 to achieve locking and fixing. The inner wall of the groove 9 is provided with a slot 11 that cooperates with the locking block 13 to achieve locking. The inner wall of the movable groove 12 is provided with a receiving groove 17, which provides installation and receiving space for the first spring 14. The first spring 14 is disposed inside the receiving groove 17. The first spring 14 provides an outward elastic pushing force for the locking block 13. One end of the first spring 14 is fixed to the inner wall of the receiving groove 17, and the other end of the first spring 14 is fixed to the locking block 13. The first spring 14 pushes the locking block 13 to automatically extend into the slot 11 to achieve locking.

[0025] When using this invention, the operator first presses the locking block 13 to retract it into the movable groove 12 and disengage it from the locking groove 11, and then presses the baffle 8 on the anti-detachment hook 2 to make the baffle 8 rotate around the first pin 15 and compress the second spring 16. The power transmission line or external connection structure is then hooked into the opening of the anti-detachment hook 2. Then, the baffle 8 is released. Under the restoring force of the second spring 16, the baffle 8 will rotate and embed itself into the groove 9. At the same time, the locking block 13 in the movable groove 12 will automatically pop out under the push of the first spring 14 and lock into the locking groove 11 on the inner wall of the groove 9, thereby locking the baffle 8 and preventing the hooked object from falling out. After the connection is completed, pull the rectangular rod 27 from the second slot 31 of the rotating sleeve 29 in the two labor-saving mechanisms, so that the rectangular rod 27 is inserted into the first slot 30 at the end of the reel 20, and the connection is kept stable by the attraction of the magnetic suction cup 28. At this time, the operator holds the anti-slip sleeve 7 on the operating rod 6 and shakes the rotating frame 5. The rotating frame 5 drives the input end of the planetary reducer 22 through the one-way bearing 23. After the planetary reducer 22 reduces speed and increases torque, its output end drives the rotating sleeve 29 to rotate. The rotating sleeve 29 transmits torque to the reel 20 through the rectangular rod 27, thereby driving the reel 18 to rotate in the device housing 1 and start winding the traction rope 4. As the traction rope 4 is wound, the movable pulley 3 is pulled upward, thereby applying a tightening force to the power transmission line. During the process, the anti-return groove 19 on the side wall of the reel 18 will cooperate with the anti-return mechanism. Under the action of the torsion spring 26, the end of the anti-return plate 24 is always pressed into the anti-return groove 19 of the reel 18, allowing the reel 18 to rotate in the direction of rope winding, but effectively preventing it from reversing and loosening, ensuring the safety of the tightening operation. When the power line is tightened to the predetermined tension, the operator stops shaking the operating lever 6, and the anti-return mechanism immediately locks the reel 18 to maintain the tension. After the operation is completed, if it is necessary to loosen the power line, first remove the rectangular rod 27 from the first slot 30 at the end of the reel 20, and then move the anti-return plate 24 to disengage it from the anti-return groove 19. The reel 18 can then rotate in the opposite direction under the tension of the traction rope 4 to release the traction rope 4. Finally, the baffle 8 can be opened and the power line can be removed.

[0026] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook, comprising a housing (1), characterized in that, The device housing (1) is provided with anti-detachment hooks (2) on both the upper and lower sides. The upper anti-detachment hook (2) is rotatably installed with the device housing (1), and the lower anti-detachment hook (2) is rotatably installed with a movable pulley (3). The device housing (1) is provided with a winding wheel (18). A winding shaft (20) fixed to the winding wheel (18) is provided through the middle of the winding wheel (18). Both ends of the winding shaft (20) are through the inner wall of the device housing (1), and the winding shaft (20) is rotatably connected to the device housing (1). The side wall of the winding wheel (18) is provided with anti-return grooves (19) evenly distributed around its circumference. The device housing (1) is provided with a check mechanism that cooperates with the check groove (19). A traction rope (4) is wound on the reel (18). The end of the traction rope (4) away from the reel (18) passes around the movable pulley (3) and is connected to the lower part of the device housing (1). The inner wall of the anti-detachment hook (2) is provided with an installation groove (10). The installation groove (10) is provided with an anti-detachment mechanism. The opposite side walls of the device housing (1) are provided with a force-saving mechanism connected to the reel (20). The outside of the device housing (1) is provided with an operating mechanism connected to the two force-saving mechanisms.

2. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook as described in claim 1, characterized in that, The anti-detachment mechanism includes a baffle (8) disposed inside the mounting groove (10). A first pin (15) is provided through the baffle (8) and rotatably connected to the baffle (8). Both ends of the first pin (15) are fixed on the inner wall of the mounting groove (10). A second spring (16) is fixed on the side wall of the baffle (8). The end of the second spring (16) away from the baffle (8) is fixed on the inner wall of the mounting groove (10). The inner wall of the anti-detachment hook (2) is provided with a groove (9) that cooperates with the baffle (8). The surface of the baffle (8) is provided with a movable groove (12). The movable groove (12) is provided with a locking structure inside.

3. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 1, characterized in that, The labor-saving mechanism includes a fixed frame (21) fixed on the outer wall of the device housing (1). A planetary reducer (22) is fixedly embedded on the outer wall of the fixed frame (21). A rotating sleeve (29) rotatably connected to the fixed frame (21) is provided through the inner wall of the fixed frame (21). The rotating sleeve (29) is fixedly connected to the output end of the planetary reducer (22). A second slot (31) is provided at the end of the rotating sleeve (29) away from the planetary reducer (22). A first slot (30) is provided at the end of the reel (20). A rectangular rod (27) is slidably inserted into the first slot (30).

4. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 3, characterized in that, The operating mechanism includes a rotating frame (5), which is mounted on the input end of the planetary reducer (22) via a one-way bearing (23), and an operating rod (6) is fixed on the side wall of the rotating frame (5).

5. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 1, characterized in that, The check mechanism includes a check plate (24), on which a second pin (25) is rotatably connected. Both ends of the second pin (25) are fixed to the inner wall of the device housing (1). Two torsion springs (26) are fitted on the second pin (25). The two torsion springs (26) are respectively arranged on both sides of the check plate (24). One end of the torsion spring (26) is fixed to the inner wall of the device housing (1), and the other end of the torsion spring (26) is fixed to the side wall of the check plate (24).

6. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 2, characterized in that, The locking structure includes a locking block (13) disposed inside the movable groove (12). The locking block (13) penetrates the inner wall of the movable groove (12) and extends to the outside of the baffle (8). The inner wall of the groove (9) is provided with a locking groove (11) for the locking block (13) to engage. The inner wall of the movable groove (12) is provided with a receiving groove (17). The receiving groove (17) is provided with a first spring (14). One end of the first spring (14) is fixed to the inner wall of the receiving groove (17), and the other end of the first spring (14) is fixed to the locking block (13).

7. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 3, characterized in that, A magnetic chuck (28) is fixedly sleeved on the side wall of the rectangular rod (27).

8. A power transmission line tensioner with a labor-saving mechanism and an anti-derailment hook according to claim 4, characterized in that, An anti-slip sleeve (7) is fixedly sleeved on the operating lever (6).

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