A tight wire device for overhead cable laying and its usage method

Abstract

The present invention belongs to the technical field of cable installation, and particularly relates to a wire tightening device for overhead cable laying, which has two hooks. It is characterized in that: it also has an outer ring and two screw rods. The outer ring is formed by two upper and lower strip-shaped bodies and two left and right semi-circular bodies to form a ring. Each of the two upper and lower strip-shaped bodies forms a first sliding hole and a screw rod movable cavity that penetrates the first sliding hole from left to right. The screw rod is located in the corresponding screw rod movable cavity. The hook is threadedly engaged with the screw rod and can move left and right along the first sliding hole. The present invention has beneficial effects such as simple structure, high wire tightening efficiency, and anti-dropping. The present invention also discloses the usage method of the wire tightening device.

Description

Technical Field

[0001] The invention belongs to the technical field of cable installation, and in particular relates to a tensioning device for laying overhead cables and a method of using the device. Background Art

[0002] The cam is provided with a toothed plate on one side of the cam and the cable drum is installed, and the top end of the cam is connected with a hook, and the bottom end of the cam is connected with the mounting bracket, and the hook is provided on the top end of the cam, and the pulley and the cable are connected together.

[0003] The above-mentioned existing technologies all have the following shortcomings: 1. Complex structure, high cost and heavy weight; 2. No second anti-loosening protection. If the limiting wheel is damaged, the two sections of cable will be separated suddenly, which may cause injuries to construction workers; 3. The tightening speed is slow and the tightening efficiency is low because the cable is tightened by rotating the driving wheel and the limiting wheel. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to disclose a tensioning device for overhead cable laying and a method of using the same, which is achieved by adopting the following technical solutions.

[0005] A tensioning device for laying overhead cables, having two hooks, characterized in that it also has an outer ring and two screws;

[0006] The outer ring is composed of two identical strip-shaped bodies symmetrically placed in an upper and lower direction and two identical semicircular bodies symmetrically placed in a left and right direction, the arc-shaped openings of the two semicircular bodies facing each other, the left and right ends of the upper strip-shaped body are respectively fixedly connected to the upper ends of the two semicircular bodies, and the left and right ends of the lower strip-shaped body are respectively fixedly connected to the lower ends of the two semicircular bodies, and the two strip-shaped bodies and the two semicircular bodies form a ring;

[0007] A first sliding hole is provided on the right side of the upper strip body, which passes through the first sliding hole from top to bottom. A screw activity cavity is also provided on the upper strip body, which passes through the first sliding hole from left to right. The right side of the screw activity cavity is connected to the outside.

[0008] A first sliding hole penetrating up and down is provided in the left part of the strip-shaped main body at the lower side. A screw rod moving cavity penetrating left and right through the first sliding hole is further provided on the strip-shaped main body at the lower side, and the left side of the screw rod moving cavity communicates with the outside;

[0009] The screw rod is located in the corresponding screw rod moving cavity adapted to the screw rod. The screw rod can only rotate around the axis of the screw rod in the screw rod moving cavity. Threads are provided on the screw rod, and one end of the screw rod is located outside the first screw rod cavity, facilitating the rotation of the screw rod;

[0010] The hook is composed of a slider capable of locking with the outer ring, a hook main body, and a movable limiting block. Two second sliding holes penetrating left and right are provided on the slider. A threaded hole penetrating left and right is provided on the slider between the two second sliding holes. The upper end of the hook main body is fixed to the slider below the threaded hole. One end of the movable limiting block is pivotally connected to the lower end of the hook main body. The other end of the movable limiting block is located on the left side of the lower end of the hook main body. The other end of the movable limiting block is wedge-shaped, and a first torsion spring is provided on the rotating shaft of the movable limiting block and the hook main body;

[0011] The side walls on the front and rear sides of the first sliding hole respectively pass through the corresponding second sliding holes of the corresponding hooks, and the threaded holes are respectively engaged with the threads of the corresponding screw rods. The hook main bodies of the two hooks are located in the inner cavity of the outer ring. The arc-shaped opening of the hook main body on the upper screw rod faces left, and the arc-shaped opening of the hook main body on the lower screw rod faces right;

[0012] When the movable limiting block is not subject to external force, due to the action of the first torsion spring, the movable limiting block on the upper hook contacts the strip-shaped main body at the lower side, and the movable limiting block on the lower hook contacts the strip-shaped main body at the upper side.

[0013] The described tight wire device for overhead cable laying is characterized in that: the screw rod moving cavity on the strip-shaped main body at the upper side includes a first screw rod cavity and a second screw rod cavity. The first screw rod cavity is located on the right side of the corresponding first sliding hole. The right side of the first screw rod cavity communicates with the outside, and the left side communicates with the first sliding hole. The first screw rod cavity and the corresponding second screw rod cavity are coaxial and have the same inner diameter. The second screw rod cavity is located on the left side of the corresponding first sliding hole. The right side of the second screw rod cavity communicates with the corresponding first sliding hole. A limiting component cavity coaxial with the corresponding second screw rod cavity and having an inner diameter larger than that of the corresponding second screw rod cavity is formed in the middle of the second screw rod cavity;

[0014] The screw rod movable cavity on the lower strip-shaped main body includes a first screw rod cavity and a second screw rod cavity. The first screw rod cavity is located on the left side of the corresponding first sliding hole. The left side of the first screw rod cavity communicates with the outside, and the right side communicates with the first sliding hole. The first screw rod cavity is coaxial and has the same inner diameter as the corresponding second screw rod cavity. The second screw rod cavity is located on the right side of the corresponding first sliding hole. The left side of the second screw rod cavity communicates with the corresponding first sliding hole. A limiting component cavity that is coaxial with the corresponding second screw rod cavity and has an inner diameter larger than that of the corresponding second screw rod cavity is formed in the middle of the second screw rod cavity;

[0015] The screw rod also has a handle. The handle is fixed to the left part of the screw rod main body. The handle of the upper screw rod is located on the right side of the corresponding first screw rod cavity, and the handle of the lower screw rod is located on the left side of the corresponding first screw rod cavity;

[0016] The screw rod is composed of a screw rod main body and a cylindrical limiting component. The cylindrical limiting component is fixed to the right part of the screw rod main body. The cylindrical limiting component is coaxial with the screw rod main body, and the diameter of the cylindrical limiting component is larger than that of the screw rod main body;

[0017] The screw rod is composed of a screw rod main body and a cylindrical limiting component. The cylindrical limiting component is fixed to the right part of the screw rod main body. The cylindrical limiting component is coaxial with the screw rod main body, and the diameter of the cylindrical limiting component is larger than that of the screw rod main body. A thread is provided on the screw rod main body between the cylindrical limiting component and the handle;

[0018] The cylindrical limiting component of the upper screw rod is adapted to the limiting component cavity of the upper strip-shaped main body. The screw rod main body is adapted to the corresponding first screw rod cavity and second screw rod cavity. The two ends of the thread are respectively located in the corresponding first screw rod cavity and second screw rod cavity;

[0019] The cylindrical limiting component of the lower screw rod is adapted to the limiting component cavity of the lower strip-shaped main body. The screw rod main body is adapted to the corresponding first screw rod cavity and second screw rod cavity. The two ends of the thread are respectively located in the corresponding first screw rod cavity and second screw rod cavity.

[0020] For the above-mentioned wire tightening device for overhead cable laying, it is characterized in that: a locking component is threadedly connected to the front side wall of the slider.

[0021] A method for using a wire tightening device for overhead cable laying is characterized in that the above-mentioned wire tightening device for overhead cable laying is used, and it includes the following steps:

[0022] Step 1: Fix the fixing components on the two hanging rings to the two cables that need to be tightened respectively;

[0023] Step 2: Open the hanging rings and hang the two hanging rings on the two semi-circular main bodies of the wire tightening device respectively;

[0024] Step 3: Loosen the locking component, rotate the handle to rotate the screw rod, move the slider of the hook along the screw rod to the required position, and tighten the locking component to fix the slider to the corresponding strip-shaped body;

[0025] Step 4: Rotate the outer ring counterclockwise to push open the movable limit block of the corresponding hook body by the hanging ring and enter between the two hook bodies. At this time, the movable limit block resets;

[0026] Step 5: Rotate the outer ring in the reverse direction to slide the hanging ring along the movable limit block onto the corresponding hook body to complete the tight wire.

[0027] For a tight wire device for overhead cable laying described above, it is characterized in that: above the right part of the upper first screw rod cavity, there is a limiting groove with the same width as the diameter of the first screw rod cavity and communicating with the first screw rod cavity. In the same cross-section perpendicular to the first screw rod cavity, the first screw rod cavity and the limiting groove are in a U shape, and a pair of telescopic limiting pins are symmetrically arranged on both side walls of the limiting groove;

[0028] Above the left part of the lower first screw rod cavity, there is a limiting groove with the same width as the diameter of the first screw rod cavity and communicating with the first screw rod cavity. In the same cross-section perpendicular to the first screw rod cavity, the first screw rod cavity and the limiting groove are in a U shape, and a pair of telescopic limiting pins are symmetrically arranged on the front and rear side walls of the limiting groove;

[0029] The screw rod main body is composed of a first screw rod body and a second screw rod body. The left end of the first screw rod body is pivotally connected to the right end of the second screw rod body. A cylindrical limiting component is fixed to the right part of the first screw rod body. The cylindrical limiting component is coaxial with the first screw rod body. The diameter of the cylindrical limiting component is larger than the diameter of the first screw rod body. There is a thread on the first screw rod body between the cylindrical limiting component and the left end of the first screw rod body. The connection between the first screw rod body and the second screw rod body is located in the first screw rod cavity below the limiting groove;

[0030] The first screw rod body of the upper screw rod passes through the corresponding first screw rod cavity and second screw rod cavity, and the first screw rod body is adapted to the corresponding first screw rod cavity and second screw rod cavity. The two ends of the thread are respectively located in the corresponding first screw rod cavity and second screw rod cavity. The handle is located on the right side of the corresponding first screw rod cavity;

[0031] The first screw rod body of the lower screw rod passes through the corresponding first screw rod cavity and second screw rod cavity, and the first screw rod body is adapted to the corresponding first screw rod cavity and second screw rod cavity.

[0032] For a tight wire device for overhead cable laying described above, it is characterized in that: the handle is fixed to the left part of the second screw rod body. The handle of the upper screw rod is located on the right side of the corresponding second screw rod cavity, and the handle of the lower screw rod is located on the left side of the corresponding second screw rod cavity.

[0033] A method for using a wire tightening device for overhead cable laying, characterized in that the above-mentioned wire tightening device for overhead cable laying is used, and it includes the following steps:

[0034] Step 1: Fix the fixing components on the two hanging rings to the two cables that need to be tightened respectively;

[0035] Step 2: Open the hanging rings and hang the two hanging rings on the two semi-circular main bodies of the wire tightening device respectively;

[0036] Step 3: Rotate the handle to make the screw rotate, move the slider of the hook along the screw to the required position, and rotate the second screw body to be able to rotate in the corresponding limit groove, rotate the second screw body in the limit groove to a vertical state with the first screw body, and fix the slider to the corresponding strip-shaped main body;

[0037] Step 4: Rotate the outer ring counterclockwise to make the hanging ring push open the movable limit block of the corresponding hook body and enter between the two hook bodies. At this time, the movable limit block resets;

[0038] Step 5: Rotate the outer ring in the reverse direction to make the hanging ring slide along the movable limit block onto the corresponding hook body to complete wire tightening.

[0039] The above-mentioned wire tightening device for overhead cable laying is characterized in that: a lower part of the left semi-circular main body forms an inlet communicating with the inner cavity of the outer ring, an upper part of the right semi-circular main body forms an inlet communicating with the inner cavity of the outer ring, and the strip-shaped main body on the left side of the upper first sliding hole and the strip-shaped main body on the right side of the lower first sliding hole are fixed by a connecting rib.

[0040] A method for using a wire tightening device for overhead cable laying, characterized in that the above-mentioned wire tightening device for overhead cable laying is used, and it includes the following steps:

[0041] Step 1: Fix the fixing components on the two hanging rings to the two cables that need to be tightened respectively;

[0042] Step 2: Insert the two hanging rings into the inner cavity of the outer ring along the corresponding inlets and hang them on the two semi-circular main bodies of the wire tightening device respectively;

[0043] Step 3: Loosen the locking component, rotate the handle to make the screw rotate, move the slider of the hook along the screw to the required position, and tighten the locking component to fix the slider to the corresponding strip-shaped main body;

[0044] Step 4: Rotate the outer ring counterclockwise to make the hanging ring push open the movable limit block of the corresponding hook body and enter between the two hook bodies. At this time, the movable limit block resets;

[0045] Step Five: Rotate the outer ring in the reverse direction to make the hanging ring slide along the movable limiting block onto the corresponding hook body, completing the tight line.

[0046] For the tight line device for overhead cable laying described above, it is characterized in that: a rotation force receiving protrusion is provided on the rear side wall of the upper strip-shaped main body, and a rotation force receiving protrusion is provided on the rear side wall of the lower strip-shaped main body.

[0047] The present invention has the following beneficial effects:

[0048] 1. The tight line efficiency is high. The hanging ring directly enters the corresponding hook body from the semi-circular main body, which is more efficient than the existing method of tightening the line by rotating the driving wheel and the limiting wheel.

[0049] 2. The movable limiting block and the first torsion spring are provided to prevent the hanging ring from detaching from the hook body, while in the existing technology, an unclosed hook is used and the cable may detach from the hook.

[0050] 3. There is an outer ring outside the hook body. Even if the hook body is damaged, the hanging ring can still be hung on the outer ring, and the two hanging rings will not fall off the outer ring, and the overhead cable will not drop. While in the existing technology, once the limiting wheel is damaged and cannot limit, the two sections of the cable will quickly separate, which may cause injury to construction workers.

[0051] 4. There are two first sliding holes, and the cable tight line range is twice the length of the first sliding hole, with a wider range, and the position of the slider in the first sliding hole can be adjusted infinitely.

[0052] 5. The limiting groove and the second screw body that can rotate in the limiting groove are provided. When the second screw body is perpendicular to the first screw body in the limiting groove, the rotation of the screw can be fixed, it is not easy to fall off, and the locking effect is better. Description of the Drawings

[0053] Figure 1 It is a three-dimensional structure diagram of Embodiment 1.

[0054] Figure 2 It is a three-dimensional structure diagram of the outer ring of Embodiment 1.

[0055] Figure 3 It is the front view of the outer ring of Embodiment 1.

[0056] Figure 4 It is the rear view of the outer ring of Embodiment 1.

[0057] Figure 5 It is the sectional view of the outer ring of Embodiment 1.

[0058] Figure 6 It is a three-dimensional structure diagram of the screw of Embodiment 1.

[0059] Figure 7 Schematic three-dimensional structure diagram of the hook in Embodiment 1.

[0060] Figure 8 Schematic three-dimensional structure diagram of Embodiment 2.

[0061] Figure 9 Schematic three-dimensional structure diagram of the outer ring in Embodiment 2.

[0062] Figure 10 Front view of the outer ring in Embodiment 2.

[0063] Figure 11 Rear view of the outer ring in Embodiment 2.

[0064] Figure 12 Cross-sectional view of the outer ring in Embodiment 2.

[0065] Figure 13 Schematic three-dimensional structure diagram of the outer ring in Embodiment 3.

[0066] Figure 14 Schematic three-dimensional structure diagram of the screw in Embodiment 3.

[0067] Figure 15 Schematic three-dimensional structure diagram during operation in Embodiment 4.

[0068] In the figure: 1. Outer ring, 11. Strip-shaped main body, 12. First sliding hole, 13. Semi-circular main body, 14. Rotating force-receiving protrusion, 15. First screw cavity, 16. Limiting component cavity, 17. Second screw cavity, 18. Entrance, 19. Connecting rib, 110. Limiting groove, 111. Telescopic limiting pin, 2. Hook, 21. Slide block, 22. Second sliding hole, 23. Locking component, 24. Threaded hole, 25. Hook main body, 26. Movable limiting block, 3. Screw, 31. Screw main body, 311. First screw body, 312. Second screw body, 32. Thread, 33. Handle, 34. Cylindrical limiting component, 4. Hanging ring, 5. Fixing component. Detailed implementation manners

[0069] Embodiment 1: As Figures 1 to 7 , a tight wire device for overhead cable laying, having two hooks 2, characterized in that: it further has an outer ring 1 and two screws 3;

[0070] The outer ring 1 is composed of two identical strip-shaped bodies 11 symmetrically placed up and down and two identical semi-circular bodies 13 symmetrically placed left and right. The arc openings of the two semi-circular bodies 13 face each other. The left and right ends of the upper strip-shaped body 11 are respectively fixedly connected to the upper ends of the two semi-circular bodies 13, and the left and right ends of the lower strip-shaped body 11 are respectively fixedly connected to the lower ends of the two semi-circular bodies 13. The two strip-shaped bodies 11 and the two semi-circular bodies 13 enclose a ring. A first sliding hole 12 penetrating up and down is provided in the right part of the upper strip-shaped body 11. A rotation force-receiving protrusion 14 is provided on the rear side wall of the upper strip-shaped body 11. A first screw rod cavity 15 with its right side communicating with the outside and its left side communicating with the first sliding hole 12 is provided on the strip-shaped body 11 on the right side of the first sliding hole 12 in the upper part. A second screw rod cavity 17 coaxial and of the same inner diameter as the corresponding first screw rod cavity 15 is provided on the strip-shaped body 11 on the left side of the first sliding hole 12 in the upper part. The right side of the second screw rod cavity 17 communicates with the corresponding first sliding hole 12. A limiting component cavity 16 coaxial with the corresponding second screw rod cavity 17 and with an inner diameter larger than that of the corresponding second screw rod cavity 17 is formed in the middle of the second screw rod cavity 17;

[0071] A first sliding hole 12 penetrating up and down is provided in the left part of the lower strip-shaped body 11. A rotation force-receiving protrusion 14 is provided on the rear side wall of the lower strip-shaped body 11. A first screw rod cavity 15 with its left side communicating with the outside and its right side communicating with the corresponding first sliding hole 12 is provided on the strip-shaped body 11 on the left side of the first sliding hole 12 in the lower part. A second screw rod cavity 17 coaxial and of the same inner diameter as the corresponding first screw rod cavity 15 is provided on the strip-shaped body 11 on the right side of the first sliding hole 12 in the lower part. The left side of the second screw rod cavity 17 communicates with the first sliding hole 12. A limiting component cavity 16 coaxial with the corresponding second screw rod cavity 17 and with an inner diameter larger than that of the corresponding second screw rod cavity 17 is formed in the middle of the second screw rod cavity 17;

[0072] The screw rod 3 is composed of a screw rod main body 31, a cylindrical limiting component 34 and a handle 33. The handle 33 is fixed to the left part of the screw rod main body 31, and the cylindrical limiting component 34 is fixed to the right part of the screw rod main body 31. The cylindrical limiting component 34 is coaxial with the screw rod main body 31. The diameter of the cylindrical limiting component 34 is larger than that of the screw rod main body 31. A thread 32 is provided on the screw rod main body 31 between the cylindrical limiting component 34 and the handle 33;

[0073] The cylindrical limiting member 34 of the upper screw 3 is located within the limiting member cavity 16 of the upper strip-shaped main body 11, and the cylindrical limiting member 34 is adapted to the corresponding limiting member cavity 16. The screw main body 31 passes through the corresponding first screw cavity 15 and second screw cavity 17, and the screw main body 31 is adapted to the corresponding first screw cavity 15 and second screw cavity 17. The threads 32 are respectively located within the corresponding first screw cavity 15 and second screw cavity 17, and the handle 33 is located on the right side of the corresponding first screw cavity 15;

[0074] The cylindrical limiting member 34 of the lower screw 3 is located within the limiting member cavity 16 of the lower strip-shaped main body 11, and the cylindrical limiting member 34 is adapted to the corresponding limiting member cavity 16. The screw main body 31 passes through the corresponding first screw cavity 15 and second screw cavity 17, and the screw main body 31 is adapted to the corresponding first screw cavity 15 and second screw cavity 17. Both ends of the threads 32 are respectively located within the corresponding first screw cavity 15 and second screw cavity 17, and the handle 33 is located on the left side of the corresponding first screw cavity 15;

[0075] The hook 2 is composed of a slider 21, a hook main body 25, and a movable limiting block 26. The slider 21 is provided with two second sliding holes 22 that penetrate left and right. A threaded hole 24 that penetrates left and right is provided on the slider 21 between the two second sliding holes 22. A locking member 23 is threadedly connected to the front side wall of the slider 21. The upper end of the hook main body 25 is fixed to the slider 21 below the threaded hole 24. One end of the movable limiting block 26 is pivotally connected to the lower end of the hook main body 25. The other end of the movable limiting block 26 is located on the left side of the lower end of the hook main body 25. The other end of the movable limiting block 26 is wedge-shaped, and a first torsion spring is provided on the rotating shaft of the movable limiting block 26 and the hook main body 25;

[0076] The side walls on the front and rear sides of the first sliding hole 12 respectively pass through the corresponding second sliding holes 22 of the corresponding hook 2. The threaded holes 24 are respectively engaged with the threads 32 of the corresponding screw 3. The hook main bodies 25 of the two hooks 2 are located within the inner cavity of the outer ring 1. The arc-shaped opening of the hook main body 25 on the upper screw hook 2 faces left, and the arc-shaped opening of the hook main body 25 on the lower screw hook 2 faces right;

[0077] When the movable limiting block 26 is not subjected to an external force, due to the action of the first torsion spring, the movable limiting block 26 on the upper hook 2 contacts the lower strip-shaped main body 11, and the movable limiting block 26 on the lower hook 2 contacts the upper strip-shaped main body 11.

[0078] Embodiment 2: As Figures 8 to 12 , and referring to Figure 6 and Figure 7 , a tight wire device for overhead cable laying, having two hooks 2, is characterized in that: it also has an outer ring 1 and two screws 3;

[0079] The outer ring 1 is composed of two identical strip-shaped bodies 11 symmetrically placed up and down and two identical semi-circular bodies 13 symmetrically placed left and right. The arc openings of the two semi-circular bodies 13 face each other. The left and right ends of the upper strip-shaped body 11 are respectively fixedly connected to the upper ends of the two semi-circular bodies 13, and the left and right ends of the lower strip-shaped body 11 are respectively fixedly connected to the lower ends of the two semi-circular bodies 13. The two strip-shaped bodies 11 and the two semi-circular bodies 13 enclose a ring. A lower part of the left semi-circular body 13 forms an inlet 18 communicating with the inner cavity of the outer ring 1, and an upper part of the right semi-circular body 13 forms an inlet 18 communicating with the inner cavity of the outer ring 1. A first sliding hole 12 penetrating up and down is provided in the right part of the upper strip-shaped body 11. A rotation force-receiving protrusion 14 is provided on the rear side wall of the upper strip-shaped body 11. A first screw rod cavity 15 with its right side communicating with the outside and its left side communicating with the first sliding hole 12 is provided on the strip-shaped body 11 on the right side of the first sliding hole 12 in the upper part. A second screw rod cavity 17 coaxial and of the same inner diameter as the corresponding first screw rod cavity 15 is provided on the strip-shaped body 11 on the left side of the first sliding hole 12 in the upper part. The right side of the second screw rod cavity 17 communicates with the corresponding first sliding hole 12, and a limiting component cavity 16 coaxial with the corresponding second screw rod cavity 17 and with an inner diameter larger than that of the corresponding second screw rod cavity 17 is formed in the middle of the second screw rod cavity 17;

[0080] A first sliding hole 12 penetrating up and down is provided in the left part of the lower strip-shaped body 11. A rotation force-receiving protrusion 14 is provided on the rear side wall of the lower strip-shaped body 11. A first screw rod cavity 15 with its left side communicating with the outside and its right side communicating with the corresponding first sliding hole 12 is provided on the strip-shaped body 11 on the left side of the first sliding hole 12 in the lower part. A second screw rod cavity 17 coaxial and of the same inner diameter as the corresponding first screw rod cavity 15 is provided on the strip-shaped body 11 on the right side of the first sliding hole 12 in the lower part. The left side of the second screw rod cavity 17 communicates with the first sliding hole 12, and a limiting component cavity 16 coaxial with the corresponding second screw rod cavity 17 and with an inner diameter larger than that of the corresponding second screw rod cavity 17 is formed in the middle of the second screw rod cavity 17;

[0081] The strip-shaped body 11 on the left side of the first sliding hole 12 in the upper part is fixed to the strip-shaped body 11 on the right side of the first sliding hole 12 in the lower part through a connecting rib 19;

[0082] The screw 3 is composed of a screw main body 31, a cylindrical limiting member 34, and a handle 33. The handle 33 is fixed to the left part of the screw main body 31, and the cylindrical limiting member 34 is fixed to the right part of the screw main body 31. The cylindrical limiting member 34 is coaxial with the screw main body 31, and the diameter of the cylindrical limiting member 34 is greater than that of the screw main body 31. A thread 32 is provided on the screw main body 31 between the cylindrical limiting member 34 and the handle 33;

[0083] The cylindrical limiting member 34 of the upper screw 3 is located in the limiting member cavity 16 of the upper strip-shaped main body 11, and the cylindrical limiting member 34 is adapted to the corresponding limiting member cavity 16. The screw main body 31 passes through the corresponding first screw cavity 15 and the second screw cavity 17, and the screw main body 31 is adapted to the corresponding first screw cavity 15 and the second screw cavity 17. The threads 32 are respectively located in the corresponding first screw cavity 15 and the second screw cavity 17, and the handle 33 is located on the right side of the corresponding first screw cavity 15;

[0084] The cylindrical limiting member 34 of the lower screw 3 is located in the limiting member cavity 16 of the lower strip-shaped main body 11, and the cylindrical limiting member 34 is adapted to the corresponding limiting member cavity 16. The screw main body 31 passes through the corresponding first screw cavity 15 and the second screw cavity 17, and the screw main body 31 is adapted to the corresponding first screw cavity 15 and the second screw cavity 17. Both ends of the thread 32 are respectively located in the corresponding first screw cavity 15 and the second screw cavity 17, and the handle 33 is located on the left side of the corresponding first screw cavity 15;

[0085] The hook 2 is composed of a slider 21, a hook main body 25, and a movable limiting block 26. Two second sliding holes 22 that penetrate left and right are provided on the slider 21. A threaded hole 24 that penetrates left and right is provided on the slider 21 between the two second sliding holes 22. A locking member 23 is threadedly connected to the front side wall of the slider 21. The upper end of the hook main body 25 is fixed to the slider 21 below the threaded hole 24. One end of the movable limiting block 26 is pivotally connected to the lower end of the hook main body 25. The other end of the movable limiting block 26 is located on the left side of the lower end of the hook main body 25. The other end of the movable limiting block 26 is wedge-shaped, and a first torsion spring is provided on the rotating shaft of the movable limiting block 26 and the hook main body 25;

[0086] The side walls on the front and rear sides of the first sliding hole 12 respectively pass through the corresponding second sliding holes 22 of the corresponding hook 2. The threaded holes 24 are respectively engaged with the threads 32 of the corresponding screw 3. The hook main bodies 25 of the two hooks 2 are located in the inner cavity of the outer ring 1. The arc-shaped opening of the hook main body 25 on the upper screw 3 faces left, and the arc-shaped opening of the hook main body 25 on the lower screw 3 faces right;

[0087] When the movable limit block 26 is not subject to external force, due to the action of the first torsion spring, the movable limit block 26 on the upper hook 2 contacts the lower strip-shaped main body 11, and the movable limit block 26 on the lower hook 2 contacts the upper strip-shaped main body 11.

[0088] In this embodiment, an entrance 18 is provided to facilitate the hanging ring to enter the inner cavity of the outer ring 1, and a closed-ring hanging ring can be used.

[0089] Embodiment 3: As Figure 13 、 Figure 14 ,and referring to Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 ,a tight wire device for overhead cable laying, having two hooks 2, characterized in that: it further has an outer ring 1 and two screws 3;

[0090] The outer ring 1 is composed of two identical strip-shaped main bodies 11 symmetrically placed up and down and two identical semi-circular main bodies 13 symmetrically placed left and right. The arc openings of the two semi-circular main bodies 13 face each other. The left and right ends of the upper strip-shaped main body 11 are respectively fixedly connected to the upper ends of the two semi-circular main bodies 13, and the left and right ends of the lower strip-shaped main body 11 are respectively fixedly connected to the lower ends of the two semi-circular main bodies 13. The two strip-shaped main bodies 11 and the two semi-circular main bodies 13 enclose a ring. A first sliding hole 12 penetrating up and down is provided in the right part of the upper strip-shaped main body 11. A rotation force-receiving protrusion 14 is provided on the rear side wall of the upper strip-shaped main body 11. A first screw cavity 15 with its right side communicating with the outside and its left side communicating with the first sliding hole 12 is provided on the strip-shaped main body 11 on the right side of the first sliding hole 12 in the upper strip-shaped main body 11. A second screw cavity 17 coaxial and of the same inner diameter as the corresponding first screw cavity 15 is provided on the strip-shaped main body 11 on the left side of the first sliding hole 12 in the upper strip-shaped main body 11. The right side of the second screw cavity 17 communicates with the corresponding first sliding hole 12. A limiting part cavity 16 coaxial with the corresponding second screw cavity 17 and with an inner diameter larger than that of the corresponding second screw cavity 17 is formed in the middle of the second screw cavity 17. Above the right part of the first screw cavity 15, a limiting groove 110 with a width the same as the diameter of the first screw cavity 15 and communicating with the first screw cavity 15 is provided. In the same cross-section perpendicular to the first screw cavity 15, the first screw cavity 15 and the limiting groove 110 are in a U shape, and a pair of telescopic limiting pins 111 are symmetrically provided on the two side walls of the limiting groove 110;

[0091] On the left part of the lower strip-shaped main body 11, there is a first sliding hole 12 that penetrates up and down. On the rear side wall of the lower strip-shaped main body 11, there is a rotation force-receiving protrusion 14. On the strip-shaped main body 11 on the left side of the lower first sliding hole 12, there is a first screw cavity 15 that is open to the outside on the left side and communicates with the corresponding first sliding hole 12 on the right side. On the strip-shaped main body 11 on the right side of the lower first sliding hole 12, there is a second screw cavity 17 that is coaxial and has the same inner diameter as the corresponding first screw cavity 15. The left side of the second screw cavity 17 communicates with the first sliding hole 12. In the middle of the second screw cavity 17, there is a limiting component cavity 16 that is coaxial with the corresponding second screw cavity 17 and has an inner diameter larger than that of the corresponding second screw cavity 17. Above the left part of the first screw cavity 15, there is a limiting groove 110 with a width the same as the diameter of the first screw cavity 15 and communicating with the first screw cavity 15. In the same cross-section perpendicular to the first screw cavity 15, the first screw cavity 15 and the limiting groove 110 are in a U shape. On the front and rear side walls of the limiting groove 110, there are symmetrically arranged a pair of telescopic limiting pins 111;

[0092] The screw 3 is composed of a screw main body 31, a cylindrical limiting component 34, and a handle 33. The screw main body 31 is composed of a first screw body 311 and a second screw body 312. The left end of the first screw body 311 is pivotally connected to the right end of the second screw body 312. The handle 33 is fixed to the left part of the second screw body 312. The cylindrical limiting component 34 is fixed to the right part of the first screw body 311. The cylindrical limiting component 34 is coaxial with the first screw body 311. The diameter of the cylindrical limiting component 34 is larger than that of the first screw body 311. On the first screw body 311 between the cylindrical limiting component 34 and the left end of the first screw body 311, there is a thread 32. The connection part of the first screw body 311 and the second screw body 312 is located in the first screw cavity 15 below the limiting groove 110;

[0093] The cylindrical limiting component 34 of the upper screw 3 is located in the limiting component cavity 16 of the upper strip-shaped main body 11, and the cylindrical limiting component 34 is adapted to the corresponding limiting component cavity 16. The first screw body 311 passes through the corresponding first screw cavity 15 and the second screw cavity 17, and the first screw body 311 is adapted to the corresponding first screw cavity 15 and the second screw cavity 17. The two ends of the thread 32 are respectively located in the corresponding first screw cavity 15 and the second screw cavity 17. The handle 33 is located on the right side of the corresponding first screw cavity 15;

[0094] The cylindrical limiting member 34 of the lower screw 3 is located within the limiting member cavity 16 of the lower strip-shaped body 11, and the cylindrical limiting member 34 is adapted to the corresponding limiting member cavity 16. The first screw body 311 passes through the corresponding first screw cavity 15 and the second screw cavity 17, and the first screw body 311 is adapted to the corresponding first screw cavity 15 and the second screw cavity 17. Both ends of the thread 32 are located within the corresponding first screw cavity 15 and the second screw cavity 17 respectively, and the handle 33 is located on the left side of the corresponding first screw cavity 15;

[0095] The hook 2 is composed of a slider 21, a hook body 25, and a movable limiting block 26. There are two second sliding holes 22 penetrating left and right on the slider 21. There is a threaded hole 24 penetrating left and right on the slider 21 between the two second sliding holes 22. A locking member 23 is threadedly connected to the front side wall of the slider 21. The upper end of the hook body 25 is fixed to the slider 21 below the threaded hole 24. One end of the movable limiting block 26 is pivotally connected to the lower end of the hook body 25. The other end of the movable limiting block 26 is located on the left side of the lower end of the hook body 25. The other end of the movable limiting block 26 is wedge-shaped, and a first torsion spring is provided on the rotating shaft of the movable limiting block 26 and the hook body 25;

[0096] The side walls on the front and rear sides of the first sliding hole 12 respectively pass through the corresponding second sliding holes 22 of the corresponding hook 2. The threaded holes 24 are respectively engaged with the threads 32 of the corresponding screws 3. The hook bodies 25 of the two hooks 2 are located within the inner cavity of the outer ring 1. The arc-shaped opening of the hook body 25 on the upper screw 3 faces left, and the arc-shaped opening of the hook body 25 on the lower screw 3 faces right;

[0097] When the movable limiting block 26 is not subject to external force, due to the action of the first torsion spring, the movable limiting block 26 on the upper hook 2 contacts the lower strip-shaped body 11, and the movable limiting block 26 on the lower hook 2 contacts the upper strip-shaped body 11. When the second screw body 312 moves within the corresponding limiting groove 110 to be perpendicular to the first screw body 311, the telescopic limiting pin 111 of the right limiting groove 110 is located on the right side of the corresponding second screw body 312, and the telescopic limiting pin 111 of the left limiting groove 110 is located on the left side of the corresponding second screw body 312.

[0098] Example 4: As Figure 15 , a method for using a wire tightening device for overhead cable laying, characterized in that the wire tightening device for overhead cable laying described in Example 1 is used, and it includes the following steps:

[0099] Step 1: Fix the fixing components 5 on the two hanging rings 4 to the two cables that need to be tightened respectively;

[0100] Step 2: Open the hanging ring 4 and hang the two hanging rings 4 on the two semi-circular bodies 13 of the wire tightening device respectively;

[0101] Step 3: Loosen the locking member 23, rotate the handle 33 to rotate the screw rod 3, move the slider 21 of the hook 2 along the screw rod 3 to the required position, and tighten the locking member 23 to fix the slider 21 to the corresponding strip-shaped body 11;

[0102] Step 4: Rotate the outer ring 1 counterclockwise to make the hanging ring 4 push open the movable limiting block 26 of the corresponding hook body 25 and enter between the two hook bodies 25. At this time, the movable limiting block 26 resets;

[0103] Step 5: Rotate the outer ring 1 in the reverse direction to make the hanging ring 4 slide along the movable limiting block 26 onto the corresponding hook body 25 to complete wire tightening.

[0104] Figure 15 In, the solid line with an arrow is the rotation direction of the outer ring 1 in Step 4, and the dotted line with an arrow is the movement trajectory of the left hanging ring 4 inside the outer ring 1 during the processes of Step 4 and Step 5.

[0105] Example 5: Refer to Figure 15 , a method for using a wire tightening device for overhead cable laying, characterized in that, using the wire tightening device for overhead cable laying described in Example 2, it includes the following steps:

[0106] Step 1: Fix the fixing parts 5 on the two hanging rings 4 to the two cables that need to be tightened respectively;

[0107] Step 2: Let the two hanging rings 4 enter the inner cavity of the outer ring 1 along the corresponding inlets 18 and hang on the two semi-circular bodies 13 of the wire tightening device respectively;

[0108] Step 3: Loosen the locking member 23, rotate the handle 33 to rotate the screw rod 3, move the slider 21 of the hook 2 along the screw rod 3 to the required position, and tighten the locking member 23 to fix the slider 21 to the corresponding strip-shaped body 11;

[0109] Step 4: Rotate the outer ring 1 counterclockwise to make the hanging ring 4 push open the movable limiting block 26 of the corresponding hook body 25 and enter between the two hook bodies 25. At this time, the movable limiting block 26 resets;

[0110] Step 5: Rotate the outer ring 1 in the reverse direction to make the hanging ring 4 slide along the movable limiting block 26 onto the corresponding hook body 25 to complete wire tightening.

[0111] Example 6: Refer to Figure 15 , a method for using a wire tightening device for overhead cable laying, characterized in that, using the wire tightening device for overhead cable laying described in Example 3, it includes the following steps:

[0112] Step 1: Fix the fixing parts 5 on the two hanging rings 4 to the two cables that need to be tightened respectively.

[0113] Step 2: Open the hanging rings 4 and hang the two hanging rings 4 on the two semi-circular bodies 13 of the wire tightening device respectively.

[0114] Step 3: Rotate the handle 33 to make the screw 3 rotate, so that the slider 21 of the hook 2 moves along the screw 3 to the required position, and rotate the second screw body 312 to be able to rotate in the corresponding limit groove 110, and rotate the second screw body 312 in the limit groove 110 to a vertical state with the first screw body 311, so that the slider 21 is fixed to the corresponding strip-shaped body 11.

[0115] Step 4: Rotate the outer ring 1 counterclockwise to make the hanging ring 4 push open the movable limit block 26 of the corresponding hook body 25 and enter between the two hook bodies 25. At this time, the movable limit block 26 resets.

[0116] Step 5: Rotate the outer ring 1 in the reverse direction to make the hanging ring 4 slide along the movable limit block 26 onto the corresponding hook body 25 to complete the wire tightening.

[0117] In order to facilitate the rotation of the outer ring 1, a special automatic rotation device can be used. Just fix the turntable of the rotation device to the rotation force receiving protrusion 14.

[0118] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A tight wire device for overhead cable laying, having two hooks (2), characterized in that: It also has an outer ring (1) and two screws (3); The outer ring (1) is composed of two identical strip-shaped bodies (11) symmetrically placed up and down and two identical semi-circular bodies (13) symmetrically placed left and right. The arc openings of the two semi-circular bodies (13) face each other. The left and right ends of the upper strip-shaped body (11) are respectively fixedly connected to the upper ends of the two semi-circular bodies (13), and the left and right ends of the lower strip-shaped body (11) are respectively fixedly connected to the lower ends of the two semi-circular bodies (13). The two strip-shaped bodies (11) and the two semi-circular bodies (13) enclose a ring; A first sliding hole (12) penetrating up and down is provided in the right part of the upper strip-shaped body (11). A screw moving cavity penetrating left and right through the first sliding hole (12) is also provided on the upper strip-shaped body (11), and the right side of the screw moving cavity communicates with the outside; A first sliding hole (12) penetrating up and down is provided in the left part of the lower strip-shaped body (11). A screw moving cavity penetrating left and right through the first sliding hole (12) is also provided on the lower strip-shaped body (11), and the left side of the screw moving cavity communicates with the outside; The screw (3) is located in the corresponding screw moving cavity adapted to the screw (3). The screw (3) can only rotate around the axis of the screw (3) in the screw moving cavity. A thread (32) is provided on the screw (3), and one end of the screw (3) is located outside the first screw cavity (15); The hook (2) is composed of a slider (21) that can be locked with the outer ring (1), a hook body (25), and a movable limit block (26). Two second sliding holes (22) penetrating left and right are provided on the slider (21). A threaded hole (24) penetrating left and right is provided on the slider (21) between the two second sliding holes (22). The upper end of the hook body (25) is fixed to the slider (21) below the threaded hole (24). One end of the movable limit block (26) is pivotally connected to the lower end of the hook body (25). The other end of the movable limit block (26) is located on the left side of the lower end of the hook body (25). The other end of the movable limit block (26) is wedge-shaped, and a first torsion spring is provided on the rotating shaft of the movable limit block (26) and the hook body (25); The side walls on the front and rear sides of the first sliding hole (12) respectively pass through the corresponding second sliding holes (22) of the corresponding hook (2). The threaded holes (24) are respectively engaged with the threads (32) of the corresponding screws (3). The hook bodies (25) of the two hooks (2) are located in the inner cavity of the outer ring (1). The arc opening of the hook body (25) on the upper screw (3) faces left, and the arc opening of the hook body (25) on the lower screw (3) faces right; When the movable limit block (26) is not subject to external force, the movable limit block (26) on the upper hook (2) contacts the lower strip-shaped body (11), and the movable limit block (26) on the lower hook (2) contacts the upper strip-shaped body (11).

2. The tight wire device for overhead cable laying according to claim 1, characterized in that: The screw moving cavities on the upper strip-shaped body (11) include a first screw cavity (15) and a second screw cavity (17). The first screw cavity (15) is located on the right side of the corresponding first sliding hole (12). The right side of the first screw cavity (15) communicates with the outside, and the left side thereof communicates with the first sliding hole (12). The second screw cavity (17) is coaxial and has the same inner diameter as the corresponding first screw cavity (15). The second screw cavity (17) is located on the left side of the corresponding first sliding hole (12). The right side of the second screw cavity (17) communicates with the corresponding first sliding hole (12). A limiting component cavity (16) that is coaxial with the corresponding second screw cavity (17) and has an inner diameter larger than that of the corresponding second screw cavity (17) is formed in the middle of the second screw cavity (17). The screw moving cavities on the lower strip-shaped body (11) include a first screw cavity (15) and a second screw cavity (17). The first screw cavity (15) is located on the left side of the corresponding first sliding hole (12). The left side of the first screw cavity (15) communicates with the outside, and the right side thereof communicates with the first sliding hole (12). The second screw cavity (17) is coaxial and has the same inner diameter as the corresponding first screw cavity (15). The second screw cavity (17) is located on the right side of the corresponding first sliding hole (12). The left side of the second screw cavity (17) communicates with the corresponding first sliding hole (12). A limiting component cavity (16) that is coaxial with the corresponding second screw cavity (17) and has an inner diameter larger than that of the corresponding second screw cavity (17) is formed in the middle of the second screw cavity (17). The screw (3) also has a handle (33). The handle (33) is fixed to the left part of the screw body (31). The handle (33) of the upper screw (3) is located on the right side of the corresponding first screw cavity (15), and the handle (33) of the lower screw (3) is located on the left side of the corresponding first screw cavity (15). The screw (3) is composed of a screw body (31) and a cylindrical limiting component (34). The cylindrical limiting component (34) is fixed to the right part of the screw body (31). The cylindrical limiting component (34) is coaxial with the screw body (31), and the diameter of the cylindrical limiting component (34) is larger than that of the screw body (31). The cylindrical limiting component (34) of the upper screw (3) is adapted to the limiting component cavity (16) of the upper strip-shaped body (11). The screw body (31) is adapted to the corresponding first screw cavity (15) and second screw cavity (17). Both ends of the thread (32) are respectively located in the corresponding first screw cavity (15) and second screw cavity (17). The cylindrical limiting component (34) of the lower screw (3) is adapted to the limiting component cavity (16) of the lower strip-shaped body (11). The screw body (31) is adapted to the corresponding first screw cavity (15) and second screw cavity (17). Both ends of the thread (32) are respectively located in the corresponding first screw cavity (15) and second screw cavity (17).

3. The tight wire device for overhead cable laying according to claim 2, characterized in that: A locking component (23) is threadedly connected to the front side wall of the slider (21).

4. The tensioning device for overhead cable laying according to claim 3, characterized in that: The lower part of the semi-circular main body (13) on the left forms an inlet (18) communicating with the inner cavity of the outer ring (1), and the upper part of the semi-circular main body (13) on the right forms an inlet (18) communicating with the inner cavity of the outer ring (1). The strip-shaped main body (11) on the left side of the upper first sliding hole (12) is fixed to the strip-shaped main body (11) on the right side of the lower first sliding hole (12) through a connecting rib (19).

5. The tight wire device for overhead cable laying according to claim 2, characterized in that: Above the right part of the upper first screw cavity (15), there is a limiting groove (110) with a width equal to the diameter of the first screw cavity (15) and communicating with the first screw cavity (15). In the same cross-section perpendicular to the first screw cavity (15), the first screw cavity (15) and the limiting groove (110) are in a U shape, and a pair of telescopic limiting pins (111) are symmetrically arranged on both side walls of the limiting groove (110); Above the left part of the lower first screw cavity (15), there is a limiting groove (110) with a width equal to the diameter of the first screw cavity (15) and communicating with the first screw cavity (15). In the same cross-section perpendicular to the first screw cavity (15), the first screw cavity (15) and the limiting groove (110) are in a U shape, and a pair of telescopic limiting pins (111) are symmetrically arranged on the front and back side walls of the limiting groove (110); The screw main body (31) is composed of a first screw body (311) and a second screw body (312). The left end of the first screw body (in 311) is pivotally connected to the right end of the second screw body (312). A cylindrical limiting member (34) is fixed to the right part of the first screw body (311). The cylindrical limiting member (34) is coaxial with the first screw body (311). The diameter of the cylindrical limiting member (34) is larger than the diameter of the first screw body (311). A thread (32) is provided on the first screw body (311) between the cylindrical limiting member (34) and the left end of the first screw body (311). The connection part of the first screw body (311) and the second screw body (312) is located in the first screw cavity (15) below the limiting groove (110); The first screw body (311) of the upper screw (3) passes through the corresponding first screw cavity (15) and the second screw cavity (17), and the first screw body (311) is adapted to the corresponding first screw cavity (15) and the second screw cavity (17). The two ends of the thread (32) are respectively located in the corresponding first screw cavity (15) and the second screw cavity (17), and the handle (33) is located on the right side of the corresponding first screw cavity (15); The first screw body (311) of the lower screw (3) passes through the corresponding first screw cavity (15) and the second screw cavity (17), and the first screw body (311) is adapted to the corresponding first screw cavity (15) and the second screw cavity (17).

6. The tight wire device for overhead cable laying according to claim 5, characterized in that: The handle (33) is fixed to the left part of the second screw body (312). The handle (33) of the upper screw (3) is located on the right side of the corresponding first screw cavity (15), and the handle (33) of the lower screw (3) is located on the left side of the corresponding first screw cavity (15).

7. A method for using a wire tightening device for overhead cable laying, characterized in that, The utility model uses a wire tightening device for overhead cable laying described in claim 3, which includes the following steps: Step 1: Fix the fixing components (5) on the two hanging rings (4) to the two cables that need to be tightened respectively; Step 2: Open the hanging rings (4), and hang the two hanging rings (4) on the two semi-circular main bodies (13) of the wire tightening device respectively; Step 3: Loosen the locking component (23), rotate the handle (33) to make the screw rod (3) rotate, move the slider (21) of the hook (2) along the screw rod (3) to the required position, and tighten the locking component (23) to fix the slider (21) to the corresponding strip-shaped main body (11); Step 4: Rotate the outer ring (1) counterclockwise to make the hanging ring (4) push open the movable limiting block (26) of the corresponding hook main body (25) and enter between the two hook main bodies (25), and at this time the movable limiting block (26) resets; Step 5: Rotate the outer ring (1) in the reverse direction to make the hanging ring (4) slide along the movable limiting block (26) onto the corresponding hook main body (25) to complete wire tightening.

8. A method for using a wire tightening device for overhead cable laying, characterized in that, The utility model uses a wire tightening device for overhead cable laying described in claim 4, which includes the following steps: Step 1: Fix the fixing components (5) on the two hanging rings (4) to the two cables that need to be tightened respectively; Step 2: Let the two hanging rings (4) enter the inner cavity of the outer ring (1) along the corresponding entry ports (18) and hang on the two semi-circular main bodies (13) of the wire tightening device respectively; Step 3: Loosen the locking component (23), rotate the handle (33) to make the screw rod (3) rotate, move the slider (21) of the hook (2) along the screw rod (3) to the required position, and tighten the locking component (23) to fix the slider (21) to the corresponding strip-shaped main body (11); Step 4: Rotate the outer ring (1) counterclockwise to make the hanging ring (4) push open the movable limiting block (26) of the corresponding hook main body (25) and enter between the two hook main bodies (25), and at this time the movable limiting block (26) resets; Step 5: Rotate the outer ring (1) in the reverse direction to make the hanging ring (4) slide along the movable limiting block (26) onto the corresponding hook main body (25) to complete wire tightening.

9. A method for using a tightener for overhead cable laying, characterized in that, The utility model uses a wire tightening device for overhead cable laying described in claim 6, which includes the following steps: Step 1: Fix the fixing components (5) on the two hanging rings (4) to the two cables that need to be tightened respectively; Step 2: Open the hanging rings (4), and hang the two hanging rings (4) on the two semi-circular main bodies (13) of the wire tightening device respectively; Step 3: Rotate the handle (33) to make the screw rod (3) rotate, move the slider (21) of the hook (2) along the screw rod (3) to the required position, and rotate the second screw body (312) to adjust it to be able to rotate in the corresponding limiting slot (110), rotate the second screw body (312) in the limiting slot (110) to a state perpendicular to the first screw body (311), and fix the slider (21) to the corresponding strip-shaped main body (11); Step 4: Rotate the outer ring (1) counterclockwise to make the hanging ring (4) push open the movable limiting block (26) of the corresponding hook body (25) and enter between the two hook bodies (25). At this time, the movable limiting block (26) resets. Step 5: Rotate the outer ring (1) in the reverse direction to make the hanging ring (4) slide along the movable limiting block (26) onto the corresponding hook body (25) to complete the tight wire.

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