Pre-twisted strain clamp

Abstract

The utility model relates to the technical field of strain clamps, in particular to a pre-twisted strain clamp, which comprises a protective sleeve and a pre-twisted wire, one side of the protective sleeve is provided with a clamping seat, locking bolts, a connecting ring and a clamping block, the clamping seat and the clamping block are respectively provided with two through holes for the end parts of the locking bolts to pass through, the two locking bolts are respectively provided with a first nut, and the first nut is provided with a second nut. The locking bolt close to the protective sleeve penetrates through the connecting ring, the end of the pre-twisted wire penetrates through the clamping seat, a heat preservation sleeve is fixed in the protective sleeve, two check blocks are fixed to the outer wall of the protective sleeve, connecting blocks are fixed to the two sides of the clamping seat, connecting bolts are arranged on the two sides of the clamping seat, and through holes allowing the ends of the connecting bolts to penetrate through are formed in the two check blocks and the connecting blocks. Second nuts are arranged on the two connecting bolts; and by rotating two second nuts, the distance between the protection sleeve and the clamping seat can be adjusted, the protection sleeve and the heat preservation sleeve can shield and protect the pre-twisted wire, and the pre-twisted wire is prevented from being damaged due to the fact that objects such as hail hit the pre-twisted wire.

Description

Technical Field

[0001] The utility model relates to the technical field of tension wire clamps, in particular to a pre-twisted tension wire clamp. Background Art

[0002] The tension clamp can fix the position of the cable conductor and facilitate the installation of the cable. Its main function is to withstand the tension generated during the installation of the cable to prevent the cable from being disconnected at the connection point. After the pre-twisted tension clamp is installed, the pre-twisted wire wrapped around the cable is usually exposed. The pre-twisted wire is easily hit by hail and other objects, which can easily cause the pre-twisted wire to loosen and affect the grip of the tension clamp. Therefore, a pre-twisted tension clamp is proposed to protect the pre-twisted wire. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a pre-twisted tension clamp.

[0004] The technical solution adopted by the utility model to solve its technical problems is a pre-twisted tension clamp, comprising a protective sleeve and a pre-twisted wire, a holder, a locking bolt, a connecting ring and a clamping block are provided on one side of the protective sleeve, two through holes for the ends of the locking bolts to pass through are formed on the holder and the clamping block, a first nut is provided on the two locking bolts, the locking bolt close to the protective sleeve passes through the connecting ring, the clamping block is sleeved on the connecting ring, the protective sleeve is sleeved on the outside of the pre-twisted wire, the end of the pre-twisted wire passes through the holder, an insulation sleeve is fixed in the protective sleeve, two blocks are fixed on the outer wall of the protective sleeve, connecting blocks are fixed on both sides of the holder, connecting bolts are provided on both sides of the holder, through holes for the ends of the connecting bolts to pass through are formed on the two blocks and the connecting block, and second nuts are provided on the two connecting bolts.

[0005] By adopting the above technical solution, the two second nuts are unscrewed, the protective sleeve is first put on the cable, the pre-twisted wire is wound on the cable, and then the protective sleeve is slid toward the holder. The protective sleeve and the thermal insulation sleeve can be put on the outside of the wound pre-twisted wire, and the ends of the two connecting bolts are passed through the two blocks and then the two second nuts are threadedly connected to the two connecting bolts. By rotating the two second nuts, the distance between the protective sleeve and the holder can be adjusted as needed. The protective sleeve and the thermal insulation sleeve can shield and protect the pre-twisted wire to prevent hail and other objects from hitting the pre-twisted wire and causing damage to the pre-twisted wire.

[0006] Specifically, an end of the protective sleeve close to the socket is provided with an internal thread, and an end of the protective sleeve away from the socket is integrally formed with a flange, and an outer wall of the flange is provided with an external thread that matches the internal thread on the protective sleeve.

[0007] By adopting the above technical solution, the internal thread at one end of the protective sleeve cooperates with the external thread on the flange at the other end, so that the protective sleeve can be extended conveniently.

[0008] Specifically, a limit block and an adjusting bolt are provided in the holder, the limit block is connected to the holder, one end of the adjusting bolt away from the block is rotatably connected to a clamping block, and a protective pad is fixed to one side of the clamping block away from the adjusting bolt.

[0009] By adopting the above technical solution, before the pre-twisted wire is wound around the cable, the adjusting bolt is tightened, and the protective pad is close to the pre-twisted wire, which facilitates the temporary fixation of the pre-twisted wire and prevents the pre-twisted wire from slipping when winding the pre-twisted wire around the cable and affecting the winding of the pre-twisted wire.

[0010] Specifically, two guide rods are fixed to a side of the clamping block away from the pre-twisted wires, and ends of the two guide rods away from the pre-twisted wires both penetrate the limiting block.

[0011] By adopting the above technical solution and setting up two guide rods, the stability of the clamping block can be improved.

[0012] Specifically, a connecting plate and a limiting bolt are provided on the side of the clamping block away from the protective sleeve, a through hole is provided on the connecting plate for the end of the locking bolt to pass through, a clamping seat is integrally formed on the end of the connecting plate away from the protective sleeve, two through holes are provided on the clamping seat for the end of the limiting bolt to pass through, and a third nut is provided on the limiting bolt.

[0013] By adopting the above technical solution, the clamping seat is put on the electric pole or other poles, and the limiting bolts are tightened to facilitate the overall fixation.

[0014] Specifically, reinforcement blocks are fixed on both sides of the connecting plate, and the two reinforcement blocks are connected to the clamping seat.

[0015] By adopting the above technical solution, the two reinforcement blocks can improve the strength and stability of the clamping seat.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model describes a pre-twisted tension clamp. After unscrewing the two second nuts, first put the protective sleeve on the cable, wind the pre-twisted wire around the cable, and then slide the protective sleeve toward the holder. The protective sleeve and the thermal insulation sleeve can be put on the outside of the wound pre-twisted wire. After the ends of the two connecting bolts pass through the two blocks, the two second nuts are threadedly connected to the two connecting bolts. By rotating the two second nuts, the distance between the protective sleeve and the holder can be adjusted as needed. The protective sleeve and the thermal insulation sleeve can shield and protect the pre-twisted wire to prevent hail and other objects from hitting the pre-twisted wire and causing damage to the pre-twisted wire.

[0018] (2) The pre-twisted wire tension clamp described in the utility model is configured such that before the pre-twisted wire is wound around the cable, the adjusting bolt is tightened so that the protective pad fits tightly against the pre-twisted wire, thereby facilitating temporary fixation of the pre-twisted wire and preventing the pre-twisted wire from slipping when the pre-twisted wire is wound around the cable and affecting the winding of the pre-twisted wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the protective cover of the utility model;

[0022] Figure 3 For the utility model Figure 1 A magnified view of the structure in the middle.

[0023] In the figure: 1. Protective cover; 2. Connecting bolt; 3. Second nut; 4. Pre-twisted wire; 5. Connecting block; 6. Stop block; 7. Clamping seat; 8. Locking bolt; 9. First nut; 10. Connecting ring; 11. Clamping block; 12. Connecting plate; 13. Reinforcement block; 14. Clamping seat; 15. Limiting bolt; 16. Third nut; 17. Insulation cover; 18. Flange; 19. Limiting block; 20. Guide rod; 21. Clamping block; 22. Adjusting bolt; 23. Protective pad. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In order to protect the pre-twisted wire, as an embodiment of the utility model, Figure 1 , Figure 2 As shown, a pre-twisted tension clamp described in the utility model comprises a protective sleeve 1 and a pre-twisted wire 4, a holder 7, a locking bolt 8, a connecting ring 10 and a clamping block 11 are provided on one side of the protective sleeve 1, two through holes for the ends of the locking bolts 8 to pass through are formed on the holder 7 and the clamping block 11, a first nut 9 is provided on the two locking bolts 8, the locking bolt 8 close to the protective sleeve 1 passes through the connecting ring 10, the clamping block 11 is sleeved on the connecting ring 10, the protective sleeve 1 is sleeved on the outside of the pre-twisted wire 4, the end of the pre-twisted wire 4 passes through the holder 7, an insulating sleeve 17 is fixed in the protective sleeve 1 by adhesive, two blocks 6 are welded and fixed to the outer wall of the protective sleeve 1, connecting blocks 5 are welded and fixed on both sides of the holder 7, connecting bolts 2 are provided on both sides of the holder 7, through holes for the ends of the connecting bolts 2 to pass through are formed on the two blocks 6 and the connecting block 5, and second nuts 3 are provided on the two connecting bolts 2.

[0026] When in use, unscrew the two second nuts 3, first put the protective sleeve 1 on the cable, wind the pre-twisted wire 4 on the cable, and then slide the protective sleeve 1 toward the holder 7. The protective sleeve 1 and the thermal insulation sleeve 17 can be put on the outside of the wound pre-twisted wire 4, and after the ends of the two connecting bolts 2 pass through the two blocks 6, the two second nuts 3 are threadedly connected to the two connecting bolts 2. By rotating the two second nuts 3, the distance between the protective sleeve 1 and the holder 7 can be adjusted as needed. The protective sleeve 1 and the thermal insulation sleeve 17 can shield and protect the pre-twisted wire 4 to prevent hail and other objects from hitting the pre-twisted wire 4 and causing damage to the pre-twisted wire 4.

[0027] In order to facilitate the extension of the protective sleeve 1, for example, Figure 2 As shown, the end of the protective sleeve 1 close to the holder 7 is provided with an internal thread, and the end of the protective sleeve 1 away from the holder 7 is integrally formed with a flange 18, and the outer wall of the flange 18 is provided with an external thread adapted to the internal thread on the protective sleeve 1.

[0028] In order to facilitate the winding of the pre-twisted wire 4, for example, Figure 3 As shown, a limit block 19 and an adjusting bolt 22 are provided in the holder 7. The limit block 19 is welded to the holder 7. The end of the adjusting bolt 22 away from the block 11 is rotatably connected to a clamping block 21. A protective pad 23 is fixed to the side of the clamping block 21 away from the adjusting bolt 22 by adhesive.

[0029] When in use, tighten the adjusting bolt 22 and the protective pad 23 is close to the pre-twisted wire 4, which facilitates the temporary fixation of the pre-twisted wire 4 and prevents the pre-twisted wire 4 from slipping when winding the pre-twisted wire 4 on the cable and affecting the winding of the pre-twisted wire 4.

[0030] In order to improve the stability of the clamping block 21, for example, Figure 3 As shown, two guide rods 20 are welded and fixed to one side of the clamping block 21 away from the pre-twisted wire 4 , and the ends of the two guide rods 20 away from the pre-twisted wire 4 both pass through the limiting block 19 .

[0031] In order to facilitate connection with a telephone pole or other pole, for example, Figure 1 As shown, a connecting plate 12 and a limiting bolt 15 are provided on the side of the clamping block 11 away from the protective sleeve 1, and a through hole is provided on the connecting plate 12 for the end of the locking bolt 8 to pass through. A clamping seat 14 is integrally formed on the end of the connecting plate 12 away from the protective sleeve 1, and two through holes are provided on the clamping seat 14 for the end of the limiting bolt 15 to pass through, and a third nut 16 is provided on the limiting bolt 15.

[0032] During installation, the clamping seat 14 is placed on a telephone pole or other poles, and the limiting bolts 15 are tightened to facilitate overall fixation.

[0033] In order to improve the strength of the clamping seat 14, for example, Figure 1 As shown, reinforcement blocks 13 are welded and fixed on both sides of the connecting plate 12 , and the two reinforcement blocks 13 are welded and connected to the clamping seat 14 .

[0034] When the utility model is used, the clamping seat 14 is put on a telephone pole or other poles, and the limiting bolt 15 is tightened to facilitate the overall fixation;

[0035] Unscrew the two second nuts 3, put the protective sleeve 1 on the cable first, tighten the adjusting bolt 22, and the protective pad 23 is close to the pre-twisted wire 4, which is convenient for temporary fixation of the pre-twisted wire 4 and prevents the pre-twisted wire 4 from slipping when winding the pre-twisted wire 4 on the cable and affecting the winding of the pre-twisted wire 4;

[0036] After the pre-twisted wire 4 is wound on the cable, the protective sleeve 1 is slid toward the holder 7. The protective sleeve 1 and the thermal insulation sleeve 17 can be put on the outside of the wound pre-twisted wire 4. After the ends of the two connecting bolts 2 pass through the two blocks 6, the two second nuts 3 are threadedly connected to the two connecting bolts 2. By rotating the two second nuts 3, the distance between the protective sleeve 1 and the holder 7 can be adjusted as needed. The protective sleeve 1 and the thermal insulation sleeve 17 can shield and protect the pre-twisted wire 4 to prevent hail and other objects from hitting the pre-twisted wire 4 and causing damage to the pre-twisted wire 4.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pre-twisted tension clamp, characterized in that: The invention comprises a protective sleeve (1) and a pre-twisted wire (4), wherein one side of the protective sleeve (1) is provided with a clamping seat (7), a locking bolt (8), a connecting ring (10) and a clamping block (11), wherein the clamping seat (7) and the clamping block (11) are both provided with two through holes for the ends of the locking bolts (8) to pass through, and the two locking bolts (8) are both provided with a first nut (9), the locking bolt (8) close to the protective sleeve (1) passes through the connecting ring (10), and the clamping block (11) is sleeved on the connecting ring (10), and the protective sleeve (1) is provided with a plurality of through holes. The protective sleeve (1) is sleeved outside the pre-twisted wire (4), the end of the pre-twisted wire (4) passes through the holder (7), a heat-insulating sleeve (17) is fixed inside the protective sleeve (1), two blocks (6) are fixed to the outer wall of the protective sleeve (1), connecting blocks (5) are fixed on both sides of the holder (7), connecting bolts (2) are provided on both sides of the holder (7), through holes for the ends of the connecting bolts (2) to pass through are opened on the two blocks (6) and the connecting blocks (5), and second nuts (3) are provided on the two connecting bolts (2).

2. A pre-twisted tension clamp according to claim 1, characterized in that: An end of the protective sleeve (1) close to the holder (7) is provided with an internal thread, and an end of the protective sleeve (1) away from the holder (7) is integrally formed with a flange (18), and an outer wall of the flange (18) is provided with an external thread adapted to the internal thread on the protective sleeve (1).

3. The pre-twisted tension clamp according to claim 1, characterized in that: A limit block (19) and an adjusting bolt (22) are provided in the holder (7); the limit block (19) is connected to the holder (7); one end of the adjusting bolt (22) away from the holder (11) is rotatably connected to a clamping block (21); and a protective pad (23) is fixed to one side of the clamping block (21) away from the adjusting bolt (22).

4. A pre-twisted tension clamp according to claim 3, characterized in that: Two guide rods (20) are fixed to a side of the clamping block (21) away from the pre-twisted wire (4), and ends of the two guide rods (20) away from the pre-twisted wire (4) both penetrate the limit block (19).

5. The pre-twisted tension clamp according to claim 1, characterized in that: A connecting plate (12) and a limiting bolt (15) are provided on the side of the clamping block (11) away from the protective sleeve (1); a through hole is provided on the connecting plate (12) for the end of the locking bolt (8) to pass through; a clamping seat (14) is integrally formed on the end of the connecting plate (12) away from the protective sleeve (1); two through holes are provided on the clamping seat (14) for the end of the limiting bolt (15) to pass through; and a third nut (16) is provided on the limiting bolt (15).

6. A pre-twisted tension clamp according to claim 5, characterized in that: Reinforcement blocks (13) are fixed on both sides of the connection plate (12), and the two reinforcement blocks (13) are connected to the clamping seat (14).

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