Cable tensioning equipment suitable for high-altitude power construction

Abstract

The invention relates to the technical field of high-altitude stringing, in particular to cable tensioning equipment suitable for high-altitude power construction. Comprising a support, a clamping plate is detachably and fixedly connected to the support, a rotating shaft is rotatably connected to the upper end of the support, a driving unit for driving the rotating shaft to rotate is fixed to the support, a rotating wheel is concentrically fixed to the rotating shaft, a plurality of first grooves are evenly formed in the outer edge circumference of the rotating wheel, pressing plates are arranged in the first grooves, and one ends of the pressing plates are located in the first grooves; a second groove is formed in the rotating wheel, a rotating plate is elastically and rotationally connected into the second groove, the first end of the rotating plate is fixedly connected with one end, in the first groove, of the pressing plate, a shell corresponding to the second groove is fixed to the end face of the rotating wheel, and a gravity ball is placed in the storage cavity; the gravity ball is fixedly connected with one end of the pull rope, and the other end of the pull rope penetrates through the rope groove to be connected with the second end of the rotating plate. The equipment is low in investment cost and convenient to mount, dismount and maintain.

Description

Technical Field

[0001] The invention relates to the technical field of high-altitude cable stringing, and in particular to a cable tensioning device suitable for high-altitude electric power construction. Background Art

[0002] Power engineering is a project related to the production, transmission and distribution of electric energy. When electricians carry out power construction, in order to ensure the safety and standardization of cable installation, they often need to install the cables at high places and tighten them during construction to prevent the cables from swaying unsteadily during use or short circuit failures caused by contact between cables.

[0003] The patent document with the authorization announcement number CN111799700B discloses a cable tensioning device for high-altitude power construction, including a base, a plurality of fixed bodies arranged at the bottom of the base, a cable tightening rod arranged at the top of the base, and a movable clamp is hinged at one end of the fixed rod; a fixed clamping plate fixedly installed at the top of the base is arranged on one side of the cable tightening rod, a pull rod is arranged at the top of the fixed clamping plate, a pull ring is arranged at one end of the pull rod, a first movable rod is arranged on both sides of the pull rod and the fixed clamping plate, a second movable rod is arranged on one side of the first movable rod, and an movable clamping plate is arranged at the bottom of the pull rod, and the movable clamping plate is fixedly installed on one side of the first movable rod and the second movable rod. The device uses a fixed body to fix the cable tensioning device on an electric pole or a ladder, and starts a motor or rotates a rocker to tighten the cable, which reduces the working intensity of electricians and protects the construction safety of electricians. During the process of clamping the cable, the device is provided with corrugated grooves on the upper part of the fixed clamp and the lower part of the movable clamp. This practice can increase the friction between the cable and the cable. However, during use, the corrugated grooves will damage the insulation layer of the cable under the action of tension and its own action, thereby causing the insulation of the cable to fail. After the insulation of the cable fails, it is necessary to stop pulling the cable and re-wrap the damaged insulation part, which wastes time. Summary of the invention

[0004] The main purpose of the present invention is to provide a cable tensioning device suitable for high-altitude power construction, which can effectively protect the insulation layer of the cable during the cable tensioning process, has a simple structure, low manufacturing cost, and is easy to maintain.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] The cam is provided with a plurality of first grooves, and the first groove is provided with a plurality of first grooves, and the first groove is connected with the first groove by the rope.

[0007] Specifically, the clamping plate and the bracket are connected by bolts.

[0008] Specifically, the driving unit is a brake motor, the brake motor is fixed on the bracket, and the output shaft of the brake motor is coaxially fixedly connected to the rotating shaft.

[0009] Specifically, two adjacent first grooves are alternately arranged left and right in the circumferential direction of the rotating wheel.

[0010] Specifically, a fixing seat is fixed in the first groove, a first rotating column is rotatably connected to the fixing seat, the first rotating column and the fixing seat are connected via a torsion spring, and the first end of the rotating plate is fixedly connected to the first rotating column.

[0011] Specifically, a second rotating column is rotatably connected to the second end of the rotating plate, and the pull rope is fixedly connected to the second rotating column.

[0012] Specifically, an opening is provided at one end of the storage cavity facing the rotation direction of the rotating wheel.

[0013] Specifically, the gravity ball includes two hemispherical shells, which are sealed and connected by threads.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. During the rotation of the rotating wheel, when the opening of the storage cavity is tilted downward, the gravity of the gravity ball itself can pull the pressure plate through the pull rope and the rotating plate to rotate toward the cable in the annular groove, and then use the pressure plate to press the cable tightly, and tighten the cable during the rotation of the rotating wheel. When the opening of the storage cavity is tilted upward, the gravity ball 11 moves in the storage cavity and loses the pulling force on the pull rope. Under the elastic force of the torsion spring, one end of the pressure plate rotates out of the first groove, which is convenient for the subsequent squeezing of the cable entering the annular groove.

[0016] 2. The gravity ball can be opened, and water of different weights can be injected into the gravity ball to change the pressure on the cable after the pressure plate rotates in the first groove. The weight of the gravity ball can be changed according to the length and diameter of the installed cable to avoid the situation where the pressure plate cannot apply sufficient pressure to the cable in the annular groove due to too little gravity of the gravity ball, or the pressure plate applies excessive pressure to the cable in the annular groove due to too much gravity of the gravity ball, thereby damaging the insulation layer of the cable.

[0017] 3. The equipment has a simple structure, low equipment investment cost, easy installation and disassembly, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the device.

[0019] Figure 2 A schematic diagram of the coordination between the bracket and the splint.

[0020] Figure 3 A schematic diagram of the rotating wheel.

[0021] Figure 4 Schematic diagram of the gravity ball in the storage chamber.

[0022] Figure 5 A schematic diagram of a first groove and a second groove connected to each other.

[0023] Figure 6 for Figure 4 Magnified view of area A.

[0024] Figure 7 This is a cross-sectional view of the gravity sphere.

[0025] The names of the parts in the accompanying drawings are: 1. bracket; 2. brake motor; 3. shaft; 4. wheel; 5. pressure plate; 6. housing; 7. cable; 8. clamping plate; 9. bolt; 10. first groove; 11. gravity ball; 12. pull rope; 13. second groove; 14. fixing seat; 15. first rotating column; 16. rotating plate; 17. second rotating column; 18. ring groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] like Figure 1-Figure 7 As shown, a cable tensioning device suitable for high-altitude power construction includes a bracket 1, and a clamping plate 8 is detachably fixedly connected to the bracket 1. Specifically, the clamping plate 8 is connected to the bracket 1 by bolts 9.

[0028] The upper end of the bracket 1 is rotatably connected with a rotating shaft 3, and a driving unit for driving the rotating shaft 3 to rotate is fixed on the bracket 1. Specifically, the driving unit is a brake motor 2, which is fixed on the bracket 1, and the output shaft of the brake motor 2 is fixedly connected with the rotating shaft 3 concentrically.

[0029] A rotating wheel 4 is concentrically fixed on the rotating shaft 3 , and an annular groove 18 is provided on the outer edge of the rotating wheel 4 . A plurality of first grooves 10 are evenly distributed on the circumference of the outer edge of the rotating wheel 4 . Two adjacent first grooves 10 are staggered left and right in the circumferential direction of the rotating wheel 4 , and the first grooves 10 are connected to the annular groove 18 .

[0030] A pressing plate 5 is disposed in the first groove 10 , one end of the pressing plate 5 is located in the first groove 10 , and the other end of the pressing plate 5 is located outside the first groove 10 .

[0031] A second groove 13 communicating with one end of the first groove 10 is defined in the rotating wheel 4 . A rotating plate 16 is elastically rotatably connected in the second groove 13 . A first end of the rotating plate 16 is fixedly connected to one end of the pressure plate 5 in the first groove 10 .

[0032] Specifically, a fixing seat 14 is fixed in the first groove 10 , and a first rotating column 15 is rotatably connected to the fixing seat 14 . The first rotating column 15 is connected to the fixing seat 14 via a torsion spring. The first end of the rotating plate 16 is fixedly connected to the first rotating column 15 .

[0033] A housing 6 corresponding to the second groove 13 is fixed on the end surface of the rotating wheel 4 , a storage cavity is formed between the housing 6 and the rotating wheel 4 , and an opening is provided at one end of the storage cavity facing the rotation direction of the rotating wheel 4 .

[0034] The storage chamber is connected to the corresponding second groove 13 through the rope groove on the rotating wheel 4. A gravity ball 11 is placed in the storage chamber. The gravity ball 11 is fixedly connected to one end of a pull rope 12. The other end of the pull rope 12 passes through the rope groove and is connected to the second end of the rotating plate 16.

[0035] Specifically, a second rotating column 17 is rotatably connected to the second end of the rotating plate 16 , and the pull rope 12 is fixedly connected to the second rotating column 17 .

[0036] The gravity ball 11 includes two hemispherical shells, which are sealed and connected by threads.

[0037] When installing the device, loosen the bolt 9 so that the upper end of the wire frame is located between the bracket 1 and the clamping plate 8, then turn the bolt 9 and use the clamping plate 8 and the bracket 1 to clamp and fix the upper end of the wire frame.

[0038] During the stringing process, when the cable 7 needs to be tightened, the fixed end of the cable 7 is fixedly mounted on another stringing body, so that the tightened end of the cable 7 passes through the annular groove 18 at the upper end of the rotating wheel 4 and then moves vertically downward. Then the brake motor 2 is started, and the staff manually tightens the tightened end of the cable 7 downward, so that the tightened end of the cable 7 moves downward with the rotation of the rotating wheel 4.

[0039] As the rotating wheel 4 rotates continuously, the length of the cable 7 in the annular groove 18 increases. When the opening of the storage cavity on the upper side of the rotating wheel 4 tilts downward, the gravity ball 11 in the storage cavity moves downward in the storage cavity. The downwardly moving gravity ball 11 pulls the rotating plate 16 and the pressing plate 5 to rotate through the pull rope 12 and the second rotating column 17. The torsion spring is compressed. After the pressing plate 5 rotates into the first groove 10, under the gravity of the gravity ball 11, the pressing plate 5 can squeeze the cable 7 in the annular groove 18. As the rotating wheel 4 rotates, the number of pressing plates 5 that squeeze the cable 7 in the annular groove 18 increases continuously, and then the staff can release the tensioned end of the cable 7.

[0040] As the rotating wheel 4 rotates continuously, the cable 7 between the two wire bodies is tightened. During the rotation of the rotating wheel 4, when the storage cavity opening on the lower side of the rotating wheel 4 tilts upward, the gravity ball 11 in the storage cavity moves downward in the storage cavity. After the gravity ball 11 in the storage cavity on the lower side of the rotating wheel 4 moves downward, the pull rope 12 loses the pulling force on the second rotating column 17. Under the elastic force of the torsion spring, the pressing plate 5 and the rotating plate 16 rotate, and one end of the pressing plate 5 is rotated out of the first groove 10, which is convenient for the subsequent cable 7 to enter the annular groove 18 and use the pressing plate 5 to squeeze the cable 7 entering the annular groove 18.

[0041] When one end of the pressing plate 5 that squeezes the portion of the cable 7 in the annular groove 18 is rotated out of the first groove 10 , the portion of the cable 7 squeezed by the pressing plate 5 will also come out of the annular groove 18 , so the cable 7 will not be entangled on the rotating wheel 4 .

[0042] The gravity ball 11 can be opened, and water of different weights can be injected into the gravity ball 11 to change the pressure on the cable 7 after the pressure plate 5 rotates in the first groove 10. The weight of the gravity ball 11 can be changed according to the length and diameter of the installed cable 7 to avoid the situation where the gravity ball 11 has too little gravity, causing the pressure plate 5 to be unable to apply sufficient pressure to the cable 7 in the annular groove 18, or the gravity ball 11 has too much gravity, causing the pressure plate 5 to apply excessive pressure to the cable 7 in the annular groove 18 and damage the insulation layer of the cable 7.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable tensioning device suitable for high-altitude power construction, comprising a bracket (1), to which a clamping plate (8) is detachably fixedly connected, characterized in that: The upper end of the bracket (1) is rotatably connected to a rotating shaft (3), a driving unit for driving the rotating shaft (3) to rotate is fixed on the bracket (1), a rotating wheel (4) is coaxially fixed on the rotating shaft (3), an annular groove (18) is provided on the outer edge of the rotating wheel (4), a plurality of first grooves (10) are evenly distributed on the circumference of the outer edge of the rotating wheel (4), the first grooves (10) are connected to the annular grooves (18), a pressing plate (5) is arranged in the first groove (10), one end of the pressing plate (5) is located in the first groove (10), and the other end of the pressing plate (5) is located outside the first groove (10), and a rotating wheel (4) is provided in the rotating wheel (4). A second groove (13) is connected to one end of the first groove (10), a rotating plate (16) is elastically rotatably connected in the second groove (13), a first end of the rotating plate (16) is fixedly connected to one end of the pressure plate (5) in the first groove (10), a housing (6) corresponding to the second groove (13) is fixed on the end surface of the rotating wheel (4), a storage cavity is formed between the housing (6) and the rotating wheel (4), the storage cavity is connected to the corresponding second groove (13), a gravity ball (11) is placed in the storage cavity, and the gravity ball (11) and the rotating plate (16) are connected by a pull rope (12).

2. A cable tensioning device suitable for high-altitude power construction according to claim 1, characterized in that: The storage chamber is connected to the corresponding second groove (13) through a rope groove on the rotating wheel (4); the gravity ball (11) is fixedly connected to one end of the pull rope (12); the other end of the pull rope (12) passes through the rope groove and is connected to the second end of the rotating plate (16).

3. A cable tensioning device suitable for high-altitude power construction according to claim 1, characterized in that: The clamping plate (8) is connected to the bracket (1) via bolts (9).

4. The cable tensioning device suitable for high-altitude power construction according to claim 1 is characterized in that: The driving unit is a brake motor (2), the brake motor (2) is fixed on the bracket (1), and the output shaft of the brake motor (2) is coaxially fixedly connected to the rotating shaft (3).

5. The cable tensioning device suitable for high-altitude power construction according to claim 1 is characterized in that: Two adjacent first grooves (10) are arranged alternately left and right in the circumferential direction of the rotating wheel (4).

6. The cable tensioning device suitable for high-altitude power construction according to claim 1, characterized in that: A fixing seat (14) is fixed in the first groove (10), a first rotating column (15) is rotatably connected to the fixing seat (14), the first rotating column (15) and the fixing seat (14) are connected via a torsion spring, and a first end of the rotating plate (16) is fixedly connected to the first rotating column (15).

7. The cable tensioning device suitable for high-altitude power construction according to claim 1 is characterized in that: A second rotating column (17) is rotatably connected to the second end of the rotating plate (16), and the pull rope (12) is fixedly connected to the second rotating column (17).

8. The cable tensioning device suitable for high-altitude power construction according to claim 1, characterized in that: An opening is provided at one end of the storage chamber facing the rotation direction of the rotating wheel (4).

9. The cable tensioning device suitable for high-altitude power construction according to claim 1, characterized in that: The gravity ball (11) comprises two hemispherical shells, which are sealed and connected via threads.

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