Wire tightener for preventing wire displacement of paying-off steel wire rope of power transmission line

Abstract

The invention relates to the technical field of tighteners, and particularly discloses a power transmission line paying-off steel wire rope displacement prevention tightener which comprises a plate-shaped mounting base, a fixed limiting strip is mounted at one end of the top of the plate-shaped mounting base, and a limiting guide part is mounted on the side, away from one end of the fixed limiting strip, of the plate-shaped mounting base. A mounting shaft penetrates through the middle position of the top of the plate-shaped mounting base, and a hollow mounting roller is mounted at the top of the mounting shaft. The transmission mechanism for driving the T-shaped movable plate to move is arranged on the mounting shaft, and the limiting mechanism for supporting the steel wire rope is arranged on the T-shaped movable plate, so that the steel wire rope is clamped when the wire tightening equipment connecting piece is pulled to enable the hollow mounting roller to rotate to clamp the steel wire rope; the limiting mechanism can move in the direction away from the plate-shaped mounting base so as to support the reserved part, close to the end, of the steel wire rope, and then the situation that the steel wire rope is prone to swinging in the subsequent wire tightening operation process, and consequently potential safety hazards are generated or self-abrasion is increased can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wire tensioners, and in particular to a wire tensioner used to prevent wire ropes from running away in power transmission lines. Background Art

[0002] Electricity is one of the main energy sources in modern society. After being produced by a generator, it needs to be further boosted by a transformer, and then the boosted electricity is transmitted. In the whole process, the transmission line is an indispensable part. When the transmission line is installed, the wire rope needs to be constructed by traction. The tensioner is the device used for the final tightening and connection in the process of wire rope traction and installation. When the existing transmission line laying wire rope tensioner is in use, it generally clamps the end of the wire rope by applying external pulling force, so that the clamping force can be further applied to the wire rope during the pulling process. During operation, a section of the wire rope is generally left at the end to facilitate the subsequent connection tasks of the staff. This part of the wire rope hangs directly on one side of the tensioner. However, the current tensioning equipment is generally manually operated and operated in a swinging manner during operation, which will cause the tensioner and the wire rope to shake to a certain extent, and then during the tensioning operation, the reserved wire rope near the end part is easy to swing with the shaking of the tensioning operation, which may easily cause unnecessary harm to the staff. At the same time, the swinging of the wire rope itself is also easy to cause excessive extrusion and friction at the interruption position where it contacts the tensioner, which may easily cause accelerated wear of the wire rope at this point, and even cause a certain degree of damage to the wire rope at this point in severe cases, which will seriously affect the strength and other effects during subsequent use. Summary of the invention

[0003] The purpose of the present invention is to provide a wire tensioner for preventing wire rope from running away during the use of the wire tensioner for wire rope of transmission line, so as to solve the problem that the end part of the wire rope left during the wire tensioning operation may swing easily, causing safety hazards to the workers and causing wear to the wire rope itself.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A wire tensioner for preventing wire rope from running away when laying out a power transmission line comprises a plate-type mounting seat, a fixed limiting strip is installed at one end of the top of the plate-type mounting seat, and a limiting guide is installed at one side of the plate-type mounting seat away from one end of the fixed limiting strip, a mounting shaft is passed through the middle position of the top of the plate-type mounting seat, and an inner hollow mounting roller is installed on the top of the mounting shaft, a tooth block-type arc-shaped extrusion clamp is installed at one end of the outer wall of the inner hollow mounting roller close to the fixed limiting strip, a first connecting rod is installed at one end of the outer wall of the inner hollow mounting roller away from the fixed limiting strip, a wire tensioning device connecting piece is hinged at one end of the first connecting rod away from the inner hollow mounting roller, and the wire tensioning device connecting piece passes through the limiting guide; The top of the plate-shaped mounting seat is provided with a plurality of groups of limiting extrusion grooves, and the inner hollow mounting roller is provided with a limiting mechanism for limiting its own rotation; A T-shaped slide groove is provided at one end of the bottom of the plate-shaped mounting seat close to the fixed limiting strip, and a T-shaped movable plate is provided inside the T-shaped slide groove; The T-shaped movable plate is provided with a limiting mechanism for supporting the steel wire rope; The installation shaft is provided with a transmission mechanism for driving the T-shaped movable plate to move.

[0005] As a further solution of the present invention: an arc-shaped anti-slip plate is installed at one end of the outer wall of the inner hollow installation roller close to the fixed limiting strip, and a gradient extrusion block is installed at the bottom of the arc-shaped anti-slip plate.

[0006] As a further solution of the present invention: the cross-sectional shape of the gradual extrusion block is an arc, and the cross-sectional shape of the gradual extrusion block is a triangle.

[0007] As a further solution of the present invention: the cross-sectional shape of the position-limiting extrusion groove is an arc, the cross-sectional shape of the position-limiting extrusion groove is a trapezoid, and a plurality of groups of the position-limiting extrusion grooves are distributed in an arc shape.

[0008] As a further solution of the present invention: the limiting mechanism includes a first movable guide plate, the first movable guide plate is arranged inside the inner hollow mounting roller, a limiting extrusion piece is installed at the bottom of the first movable guide plate, and the limiting extrusion piece extends to the inside of a group of limiting extrusion grooves, a first spring is installed at the top of the first movable guide plate, and a second movable guide plate is installed at the top of the first spring, a damping threaded rod is arranged on the top of the second movable guide plate, and the damping threaded rod passes through the inner hollow mounting roller.

[0009] As a further solution of the present invention: the cross-sectional shape of the position-limiting extrusion member is a pentagon, and gaps are respectively left between the position-limiting extrusion member and the inner hollow mounting roller and the position-limiting extrusion groove.

[0010] As a further solution of the present invention: the damping threaded rod is rotationally connected to the second movable guide plate, and the damping threaded rod is threadedly connected to the inner hollow mounting roller.

[0011] As a further solution of the present invention: the limiting mechanism includes a U-shaped sleeve support, the U-shaped sleeve support is installed on the side of the T-shaped movable plate away from the plate-shaped mounting seat, a movable limiting member passes through the bottom of the U-shaped sleeve support, and a second spring is connected between the movable limiting member and the U-shaped sleeve support.

[0012] As a further solution of the present invention: the top of one end of the movable limiting member away from the fixed limiting strip is arranged as a bevel, and the movable limiting member is slidably connected to the U-shaped sleeve support member.

[0013] As a further solution of the present invention: the transmission mechanism includes a mounting disc, which is mounted on the bottom end of the mounting shaft, and a fixed shaft is installed on the side of the bottom of the mounting disc close to the T-shaped movable plate, a second connecting rod is sleeved on the outer side of the fixed shaft, and the end of the second connecting rod away from the fixed shaft is hinged to the T-shaped movable plate.

[0014] Beneficial effects of the present invention: (1) The present invention provides a transmission mechanism for driving the T-shaped movable plate to move on the mounting shaft, and the T-shaped movable plate is provided with a limiting mechanism for supporting the wire rope, so that when the tensioning device connecting piece is pulled to rotate the inner hollow mounting roller to clamp the wire rope, the limiting mechanism can move away from the plate-shaped mounting seat to support the reserved portion of the wire rope near the end, thereby preventing the wire rope from swinging easily during the subsequent tensioning operation, thereby causing safety hazards or increasing its own wear; (2) The present invention provides a limit mechanism inside the inner hollow installation roller to limit the unidirectional rotation of the inner hollow installation roller, so that when the device itself shakes greatly during the line tightening process, the inner hollow installation roller will not rotate in the initial direction, thereby easily avoiding loosening and running of the line; (3) The cross-sectional shape of the limiting extrusion groove of the present invention is an arc shape, the cross-sectional shape of the limiting extrusion groove is a trapezoid, and the first spring is in a compressed state during use, so that the limiting extrusion member can limit the one-way rotation of the inner hollow installation roller in the corresponding limiting extrusion groove, and at the same time, a pre-tightening force can be always applied to the limiting extrusion member and the bottom of the limiting extrusion groove. Therefore, when the wire rope is slightly deformed due to shaking during the tightening process, the limiting extrusion member can squeeze the bottom of the limiting extrusion groove so that the inner hollow installation roller drives the tooth block-shaped arc-shaped extrusion clamp to continue to rotate to the position of squeezing the wire rope, thereby further preventing the occurrence of wire running and the like; (4) The present invention provides an arc-shaped anti-slip plate and a gradient extrusion block on the inner hollow mounting roller, so that the arc-shaped anti-slip plate and the gradient extrusion block can cooperate with each other to limit the upper part of the wire rope, and a certain extrusion force is applied to it by the gradient extrusion block, thereby further ensuring the stability between the wire rope and the fixed restriction strip, and avoiding the upward and downward deviation friction; (5) The present invention has multiple groups of limiting extrusion grooves distributed in an arc shape, and the cross-sectional shape of the gradient extrusion block is an arc shape, and the cross-sectional shape of the gradient extrusion block is a triangle, so that the larger the clamping amplitude of the empty installation roller, the larger the extrusion amplitude of the gradient extrusion block, thereby facilitating the task of coordinating and clamping the wires of steel wire ropes of different lengths, thereby greatly increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 The present invention Figure 2 A magnified schematic diagram of point A; Figure 4 It is a side cross-sectional structural schematic diagram of the present invention; Figure 5 The present invention Figure 4 An enlarged schematic diagram of point B; Figure 6 It is a schematic diagram of the structure of the present invention when viewed from above; Figure 7 It is a side structural schematic diagram of the present invention; Figure 8 It is a rear view structural schematic diagram of the hollow installation roller in the present invention; Fig. 9 It is a schematic diagram of the main structure of the limiting extrusion member in the present invention.

[0017] In the figure: 1. Plate-type mounting seat; 2. Fixed limiting strip; 3. Limiting guide; 4. Mounting shaft; 5. Inner hollow mounting roller; 6. Tooth block-type arc-shaped extrusion clamp; 7. First connecting rod; 8. Line tightening equipment connecting piece; 9. Arc-shaped anti-slip plate; 10. Gradient extrusion block; 11. Limiting extrusion groove; 12. First movable guide plate; 13. Limiting extrusion piece; 14. First spring; 15. Second movable guide plate; 16. Damping threaded rod; 17. T-type slide groove; 18. T-type movable plate; 19. U-shaped sleeve support; 20. Movable limiting piece; 21. Second spring; 22. Mounting disc; 23. Fixed shaft; 24. Second connecting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1 , Figure 3-7 and Fig. 9 As shown, the present invention is a tensioner for preventing the wire rope from running away when laying out a power transmission line, comprising a plate-type mounting seat 1, a fixed limiting strip 2 is installed at one end of the top of the plate-type mounting seat 1, and a limiting guide 3 is installed on the side of the plate-type mounting seat 1 away from one end of the fixed limiting strip 2, a mounting shaft 4 is penetrated at the middle position of the top of the plate-type mounting seat 1, and an inner hollow mounting roller 5 is installed on the top of the mounting shaft 4, a tooth block-type arc-shaped extrusion clamp 6 is installed on the end of the outer wall of the inner hollow mounting roller 5 close to the fixed limiting strip 2, a first connecting rod 7 is installed on the end of the outer wall of the inner hollow mounting roller 5 away from the fixed limiting strip 2, a tensioning device connector 8 is hingedly connected to the end of the first connecting rod 7 away from the inner hollow mounting roller 5, and the tensioning device connector 8 penetrates the limiting guide 3; When in use, place the steel wire rope between the fixed limiting strip 2, the plate-type mounting seat 1 and the tooth block-type arc-shaped extrusion clamp 6, and ensure that a section of the steel wire rope is reserved near the end of the tensioning device connector 8, so as to facilitate the connection of the steel wire rope after the tensioning task is completed, and connect the tensioning device connector 8 to the tensioning device; When the tightening device connecting member 8 is pulled by the tightening device, the inner hollow installation roller 5 will be driven to rotate accordingly, and the tooth block arc-shaped extrusion clamping member 6 will rotate accordingly and cooperate with the fixed limiting strip 2 to clamp the wire rope, so that the task of clamping and tightening the wire rope can be completed with the cooperation of the tightening device. This part is the same as the existing equipment; It should be noted that the outer wall of the tooth block type arc-shaped extrusion clamp 6 is provided with a tooth block part, and there is a spiral groove on the outer side of the wire rope itself, so the corresponding tooth block can be stuck in the spiral groove on the wire rope, thereby clamping the wire rope, and when the wire rope has a tendency to run away from the tensioning device connector 8, it will drive the tooth block type arc-shaped extrusion clamp 6 and the inner hollow installation roller 5 to further rotate in the direction of continuing to clamp, so this part itself has a certain anti-running effect; A T-shaped slide groove 17 is provided at one end of the bottom of the plate-shaped mounting seat 1 close to the fixed limiting strip 2, and a T-shaped movable plate 18 is provided inside the T-shaped slide groove 17, and the T-shaped movable plate 18 and the T-shaped slide groove 17 are slidably connected; The T-shaped movable plate 18 is provided with a limiting mechanism for supporting the steel wire rope, and the limiting mechanism includes a U-shaped sleeve support 19, which is installed on the side of the T-shaped movable plate 18 away from the plate-shaped mounting seat 1, and a movable limiting member 20 is penetrated through the bottom of the U-shaped sleeve support 19, and a second spring 21 is connected between the movable limiting member 20 and the U-shaped sleeve support 19; When the T-shaped movable plate 18 extends away from the plate-shaped mounting seat 1, the U-shaped sleeve support member 19 and the movable limiting member 20 can cooperate with each other to support most of the reserved portion of the wire rope near the end. Therefore, when the wire rope and the device shake during the subsequent operation of the tensioning device, the reserved portion of the wire rope is not easy to swing due to the shaking. It should be noted that the above-mentioned swinging phenomenon can easily cause harm to the staff who are operating the tightening device. At the same time, the swinging phenomenon can cause excessive bending and friction at the contact interruption point between the wire rope and the tooth block type arc-shaped extrusion clamp 6, the fixed limiting strip 2 or the plate-type mounting seat 1. The above-mentioned method can significantly reduce the swinging phenomenon. At the same time, since the reserved part is in a supported state, it is more convenient for the staff to take it when connecting the end part later. The top of the end of the movable limiting member 20 away from the fixed limiting bar 2 is set as a bevel, and the movable limiting member 20 is slidably connected to the U-shaped sleeve support member 19; When the steel wire rope is located on the inner side of the U-shaped sleeve support 19, it will not squeeze the oblique side of the movable limiting part 20, and will not detach from the inner side of the U-shaped sleeve support 19, thereby ensuring the supporting effect of the steel wire rope. At the same time, after the tensioning is completed, the tension of the tightening device connecting part 8 disappears, and after the tightening device connecting part 8 is disconnected from the tightening device, the device can still be hung on the steel wire rope through the U-shaped sleeve support 19 and the movable limiting part 20 to avoid falling. When placing the steel wire rope, the staff can directly squeeze the oblique side of the movable limiting part 20 by the steel wire rope to make the movable limiting part 20 move downward. At this time, the steel wire rope can be squeezed to the inner side of the U-shaped sleeve support 19, which is convenient for the staff to operate. The mounting shaft 4 is provided with a transmission mechanism for driving the T-shaped movable plate 18 to move, and the transmission mechanism includes a mounting disc 22, which is mounted at the bottom end of the mounting shaft 4, and a fixed shaft 23 is mounted on the side of the bottom of the mounting disc 22 close to the T-shaped movable plate 18, and a second connecting rod 24 is sleeved on the outer side of the fixed shaft 23, and the end of the second connecting rod 24 away from the fixed shaft 23 is hinged to the T-shaped movable plate 18; When the inner hollow installation roller 5 drives the tooth block arc-shaped extrusion clamping member 6 to rotate in the clamping direction of the wire rope under the action of tension, the installation disc 22 can be driven to rotate accordingly. At this time, the installation disc 22 drives the fixed shaft 23 to move in the direction close to the tensioning device connecting member 8, thereby making the T-shaped movable plate 18 extend outward from the inside of the T-shaped slide groove 17, thereby completing the above-mentioned task of supporting the reserved part of the wire rope; At the same time, when not in use, the inner hollow mounting roller 5 can be adjusted to the state where the tooth block-shaped arc-shaped extrusion clamping part 6 thereon is not in a state of clamping the wire rope. At this time, the mounting disc 22 drives the fixed shaft 23 to move in the direction away from the tensioning device connecting part 8, and then the T-shaped movable plate 18 can be driven by the second connecting rod 24 to slide into the inside of the T-shaped slide groove 17, thereby reducing the length of the entire device, making it easier for the staff to place the device in the corresponding tool box, and at the same time, the length of the tool box will not be too high.

[0020] Embodiment 2: Based on the above embodiment 1, refer to Figure 1-3 and Fig. 9 As shown, a plurality of groups of limiting extrusion grooves 11 are provided on the top of the plate-shaped mounting seat 1, and a limiting mechanism for limiting the rotation of the inner hollow mounting roller 5 is provided inside the inner hollow mounting roller 5, and a limiting extrusion member 13 is installed at the bottom of the first movable guide plate 12, and the limiting extrusion member 13 extends to the inside of a group of limiting extrusion grooves 11, a first spring 14 is installed on the top of the first movable guide plate 12, and a second movable guide plate 15 is installed on the top of the first spring 14, and a damping threaded rod 16 is provided on the top of the second movable guide plate 15, and the damping threaded rod 16 passes through the inner hollow mounting roller 5; The first movable guide plate 12 and the second movable guide plate 15 are respectively connected to the inner hollow installation roller 5 in a sliding manner; The cross-sectional shape of the limiting extrusion member 13 is a pentagon, and there are gaps between the limiting extrusion member 13 and the inner hollow installation roller 5 and the limiting extrusion groove 11; When the inner hollow installation roller 5 is pulled to rotate in the direction of clamping the wire rope by the tensioning device connector 8, the beveled edge of the first movable guide plate 12 can be squeezed with the top of the inner limit extrusion groove 11 close to the tensioning device connector 8, so that the limit extrusion member 13 can move upward and further compress the first spring 14, so that the inner hollow installation roller 5 can rotate at this time. When the tension is unstable due to the shaking of the device during the tensioning process, the limit extrusion member 13 can cooperate with the side of the inner limit extrusion groove 11 away from the tensioning device connector 8 to limit the rotation of the inner hollow installation roller 5 in the loosening direction, thereby further avoiding the situation of line deviation caused by shaking. The damping threaded rod 16 is rotationally connected to the second movable guide plate 15, and the damping threaded rod 16 is threadedly connected to the inner hollow mounting roller 5; The damping threaded rod 16 is connected to the second movable guide plate 15 through a damping bearing, so that before use, the staff can drive the second movable guide plate 15 to move downward by rotating the damping threaded rod 16 until the limiting extrusion member 13 is inserted into the corresponding limiting extrusion groove 11, and the above work can be completed easily; The cross-sectional shape of the limiting extrusion groove 11 is an arc, and the cross-sectional shape of the limiting extrusion groove 11 is a trapezoid, and multiple groups of limiting extrusion grooves 11 are distributed in an arc shape; It should be noted that, before use, the above-mentioned staff rotates the damping threaded rod 16 to drive the second movable guide plate 15 to move downward, and when the limiting extrusion piece 13 is inserted into the corresponding limiting extrusion groove 11, not only the limiting extrusion piece 13 is entered into the corresponding limiting extrusion groove 11, but also the first spring 14 needs to be kept in a compressed state. Therefore, when the clamped part of the wire rope is slightly deformed due to shaking in the future, the limiting extrusion piece 13 will continue to move downward under the elastic force of the first spring 14, and be squeezed with the beveled part of the bottom of the inner bottom of the limiting extrusion groove 11, so that the inner hollow installation roller 5 will further rotate in the direction of clamping the wire rope at this time, so that the tooth block on the tooth block arc extrusion clamp 6 can still be stuck in the spiral groove of the wire rope in this case, and then when there is a trend of running away, the wire rope can complete the above-mentioned driving tooth block arc extrusion clamp 6 to rotate in the direction of further clamping to complete the task of preventing running away; Embodiment 3: Based on the above-mentioned embodiment 1 and embodiment 2, refer to Figure 1 and Figure 8 As shown, an arc-shaped anti-slip plate 9 is installed at one end of the outer wall of the inner hollow installation roller 5 close to the fixed limiting strip 2, and a gradient extrusion block 10 is installed at the bottom of the arc-shaped anti-slip plate 9; When the inner hollow installation roller 5 rotates, the arc-shaped anti-slip plate 9 and the gradient extrusion block 10 rotate toward the upper side of the wire rope, thereby limiting the direction; The cross-sectional shape of the gradual extrusion block 10 is an arc, and the cross-sectional shape of the gradual extrusion block 10 is a triangle; When the arc-shaped anti-slip plate 9 drives the gradual extrusion block 10 to rotate and restrict the steel wire rope from above, the gradual extrusion block 10 can fit and extrude the steel wire rope, thereby further ensuring the stability between the steel wire rope and the plate-shaped mounting seat 1, the fixed limiting strip 2 and the tooth block-shaped arc-shaped extrusion clamp 6, and the greater the clamping amplitude of the inner hollow mounting roller 5, the greater the extrusion amplitude of the gradual extrusion block 10, thereby facilitating the above operation for steel wire ropes of different lengths; It should be noted that the gradient extrusion block 10 can be made of rubber or other materials to avoid unnecessary rigid extrusion damage to the wire rope. At the same time, in Example 2, when the wire rope is slightly deformed and the inner hollow mounting roller 5 is further rotated in the clamping direction under the action of the limiting extrusion member 13, the limiting extrusion groove 11 and the first spring 14, the gradient extrusion block 10 can be further deformed without affecting the rotation of the inner hollow mounting roller 5.

[0021] The working principle of the present invention is as follows: the inner hollow installation roller 5 is rotated to a position where the tooth block type arcuate extrusion clamp 6 and the arcuate anti-drop plate 9 thereon will not hinder the placement of the wire rope, and then the damping threaded rod 16 is screwed downward, thereby driving the limiting extrusion member 13 to be inserted into the corresponding limiting extrusion groove 11, and the damping threaded rod 16 is further screwed to make the first spring 14 in a compressed state, but the first spring 14 still has space to continue to be compressed, and then the wire rope is placed between the plate-type mounting seat 1, the fixed limiting strip 2 and the tooth block type arcuate extrusion clamp 6, and the reserved part is further inserted into the inner side of the U-shaped sleeve support member 19 by squeezing the bevel of the movable limiting member 20 in the above-mentioned manner; After the above work is completed, the tensioning device connector 8 is connected to the tensioning device, and the tensioning device is used to provide tension to the tensioning device connector 8. In this process, as mentioned above, the inner hollow installation roller 5 will rotate accordingly, and the tooth block type arc-shaped extrusion clamping member 6 can cooperate with the fixed limiting strip 2 to clamp the wire rope, and the tooth block on it is stuck in the groove on the wire rope, and the arc-shaped anti-slip plate 9 and the gradient extrusion block 10 are rotated to the position for limiting the extrusion of the upper part of the wire rope. At the same time, when the inner hollow installation roller 5 drives the installation disc 22 to rotate, and further drives the T-shaped movable plate 18 to move away from the plate-type mounting seat 1 through the second connecting rod 24, the staff can then operate the tensioning device to tighten the wire rope; In the above process, the device and the wire rope will shake due to the operation of the tensioning device. As mentioned above, due to the cooperation between the limiting extrusion piece 13 and the limiting extrusion groove 11, the loosening direction of the inner hollow installation roller 5 can be limited. At the same time, the compression of the first spring 14 causes the limiting extrusion piece 13 and the bottom of the limiting extrusion groove 11 to have a pre-tightening force. Therefore, when the wire rope is slightly deformed, the inner hollow installation roller 5 can still rotate in the direction of continuing to clamp. Then, through the cooperation of the above-mentioned multiple modes, it can be ensured that the line is avoided, and at the same time, the T-shaped movable plate 18, the U-shaped sleeve support piece 19 and the movable limiting piece 20 cooperate with each other to support the reserved part of the wire rope to prevent it from being easily thrown. After the tensioning task is completed, the end parts of the wire rope are connected, the tensioning device connector 8 is disconnected from the tensioning device, the movable limiting part 20 is pulled and the device is removed from the wire rope, and then the damping threaded rod 16 is twisted upward until the compression of the first spring 14 is released, and the limiting extrusion part 13 leaves the inside of the limiting extrusion groove 11, and the inner hollow mounting roller 5 is rotated to the initial state, and then the damping threaded rod 16 is twisted downward again in the above manner until the limiting extrusion part 13 enters the corresponding limiting extrusion groove 11, and the first spring 14 remains in a compressed state, ready for next use.

[0022] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A wire tensioner for preventing wire rope from running away when laying out a power transmission line, comprising a plate-shaped mounting seat (1), characterized in that: A fixed limiting strip (2) is installed at one end of the top of the plate-shaped mounting seat (1), and a limiting guide member (3) is installed on one side of the plate-shaped mounting seat (1) away from the fixed limiting strip (2); a mounting shaft (4) passes through the middle position of the top of the plate-shaped mounting seat (1), and an inner hollow mounting roller (5) is installed on the top of the mounting shaft (4); a tooth block-shaped arc-shaped extrusion clamp (6) is installed at one end of the outer wall of the inner hollow mounting roller (5) close to the fixed limiting strip (2); a first connecting rod (7) is installed at one end of the outer wall of the inner hollow mounting roller (5) away from the fixed limiting strip (2); a tensioning device connecting member (8) is hingedly connected to one end of the first connecting rod (7) away from the inner hollow mounting roller (5), and the tensioning device connecting member (8) passes through the limiting guide member (3); The top of the plate-shaped mounting seat (1) is provided with a plurality of groups of limiting extrusion grooves (11), and the inner hollow mounting roller (5) is provided with a limiting mechanism for limiting its own rotation; A T-shaped slide groove (17) is provided at one end of the bottom of the plate-shaped mounting seat (1) close to the fixed limiting strip (2), and a T-shaped movable plate (18) is provided inside the T-shaped slide groove (17); The T-shaped movable plate (18) is provided with a limiting mechanism for supporting the steel wire rope; The installation shaft (4) is provided with a transmission mechanism for driving the T-shaped movable plate (18) to move.

2. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 1, characterized in that: An arc-shaped anti-slip plate (9) is installed at one end of the outer wall of the inner hollow installation roller (5) close to the fixed limiting strip (2), and a gradient extrusion block (10) is installed at the bottom of the arc-shaped anti-slip plate (9).

3. A wire tensioner for preventing wire rope from running away when releasing wires in power transmission lines according to claim 2, characterized in that: The cross-sectional shape of the gradual extrusion block (10) is an arc, and the cross-sectional shape of the gradual extrusion block (10) is a triangle.

4. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 1, characterized in that: The cross-sectional shape of the position-limiting extrusion groove (11) is an arc, and the cross-sectional shape of the position-limiting extrusion groove (11) is a trapezoid, and a plurality of groups of the position-limiting extrusion grooves (11) are distributed in an arc shape.

5. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 1, characterized in that: The limiting mechanism comprises a first movable guide plate (12), the first movable guide plate (12) being arranged inside the inner hollow mounting roller (5), a limiting extrusion piece (13) being installed at the bottom of the first movable guide plate (12), and the limiting extrusion piece (13) extending into a group of the limiting extrusion grooves (11), a first spring (14) being installed at the top of the first movable guide plate (12), and a second movable guide plate (15) being installed at the top of the first spring (14), a damping threaded rod (16) being arranged at the top of the second movable guide plate (15), and the damping threaded rod (16) passing through the inner hollow mounting roller (5).

6. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 5, characterized in that: The cross-sectional shape of the position-limiting extrusion piece (13) is a pentagon, and gaps are respectively left between the position-limiting extrusion piece (13) and the inner hollow mounting roller (5) and the position-limiting extrusion groove (11).

7. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 6, characterized in that: The damping threaded rod (16) is rotationally connected to the second movable guide plate (15), and the damping threaded rod (16) is threadedly connected to the inner hollow mounting roller (5).

8. The tensioner for preventing the wire rope from running away when releasing the wire of a power transmission line according to claim 1 is characterized in that: The limiting mechanism comprises a U-shaped sleeve support member (19), wherein the U-shaped sleeve support member (19) is mounted on a side of the T-shaped movable plate (18) away from the plate-shaped mounting seat (1), a movable limiting member (20) passes through the bottom of the U-shaped sleeve support member (19), and a second spring (21) is connected between the movable limiting member (20) and the U-shaped sleeve support member (19).

9. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 8, characterized in that: The top of one end of the movable limiting member (20) away from the fixed limiting strip (2) is provided with a bevel, and the movable limiting member (20) is slidably connected to the U-shaped sleeve support member (19).

10. A wire tensioner for preventing wire rope from running away when releasing wires in a power transmission line according to claim 1, characterized in that: The transmission mechanism comprises a mounting disc (22), wherein the mounting disc (22) is mounted on the bottom end of the mounting shaft (4), a fixed shaft (23) is mounted on the side of the bottom of the mounting disc (22) close to the T-shaped movable plate (18), a second connecting rod (24) is sleeved on the outer side of the fixed shaft (23), and an end of the second connecting rod (24) away from the fixed shaft (23) is hinged to the T-shaped movable plate (18).

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