A four-wire parallel tension clamp

Abstract

This utility model relates to a four-wire parallel tension clamp, belonging to the field of tension clamp technology. It includes a housing, a first pressure block, and a first locking component. A through-hole V-shaped groove is formed on the housing, and the first pressure block is slidably disposed inside the housing. A first wire-pressing groove is formed on the side of the first pressure block near the V-shaped groove, the shape of which matches the shape of the bend in the V-shaped groove. The first locking component is disposed on the housing and is used to apply a force to the first pressure block, bringing it closer to the V-shaped groove. This utility model can press the wire tightly against the bend in the V-shaped groove through the first pressure block, allowing the wire to better fit with the V-shaped groove, preventing the bend from lifting and reducing the contact area between the wire and the clamp, thereby reducing the possibility of wire slippage.

Description

Technical Field

[0001] This application relates to the field of tension clamp technology, and more particularly to a four-wire parallel tension clamp. Background Technology

[0002] Tension clamps are electrical fittings used in power transmission lines to fix conductors or ground wires (lightning conductors) on tension towers (angle towers, terminal towers, etc.) and bear the full tension of the conductors or ground wires; for four-split conductors, each sub-conductor needs to be fixed with an independent tension clamp.

[0003] Common bolt-type tension clamps require the conductor to be threaded through the V-groove during installation. Several U-bolts are then used to press the flat pressure block onto the conductor, thus securing it within the V-groove. The conductor is fixed by the friction between the conductor, the flat pressure block, and the inner wall of the V-groove. However, some conductors have high flexibility and resilience, making them difficult to bend. After installation, the conductor at the bend in the V-groove may lift up, failing to properly fit against the inner wall of the V-groove. This reduces the contact area between the conductor and the clamp, making conductor slippage more likely. Utility Model Content

[0004] This application provides a four-wire parallel tension clamp, which can improve the technical problem in the related art where the part of the conductor located at the bend of the V-groove of the tension clamp is prone to warping, resulting in a reduction in the contact area between the conductor and the clamp, and making the conductor prone to slippage.

[0005] This application provides a four-wire parallel tension clamp, including: a housing, a first pressure block, and a first locking assembly; the housing has a through V-shaped groove, and the first pressure block is slidably disposed inside the housing; the side of the first pressure block near the V-shaped groove has a first pressure groove, the shape of the first pressure groove being adapted to the shape of the bend of the V-shaped groove; the first locking assembly is disposed on the housing and is used to apply a force to the first pressure block to bring it closer to the V-shaped groove.

[0006] The technical solution described above in this application embodiment has at least the following technical effects: the first pressure block presses the wire tightly against the bend of the V-shaped groove through the first pressure groove, so that the wire fits better with the V-shaped groove, and avoids the wire bending at the bend causing the contact area between the wire and the wire clamp to decrease, thereby reducing the possibility of wire slippage.

[0007] In some embodiments, the first locking assembly includes a first U-shaped locking bar and a pair of locking rings; the locking rings are symmetrically arranged on both sides of the housing and fixedly connected to the housing; a sliding groove is provided on the housing, and the two ends of the first U-shaped locking bar pass through the two locking rings respectively and are threaded with nuts; the first U-shaped locking bar passes through the sliding groove and is slidably connected to the housing; the first U-shaped locking bar abuts against the side of the first pressure block away from the V-groove.

[0008] In some embodiments, a guide groove is provided on the inner wall of the housing, a guide strip is fixedly provided on the first pressure block, the first pressure block is slidably connected to the inner wall of the housing, and the guide strip is slidably connected inside the guide groove.

[0009] In some embodiments, the tension clamp further includes a second locking component, the second locking component including a second pressure block and a locking member; the second pressure block is slidably disposed on the housing, and a second pressure groove is formed on the side of the second pressure block near the V-groove; the locking member is disposed on the housing and is used to apply a force to the second pressure block to bring the second pressure block closer to the V-groove.

[0010] In some embodiments, the locking member includes a second U-shaped locking bar; both ends of the second U-shaped locking bar pass through the housing and are threaded with nuts, and the second U-shaped locking bar abuts against the side of the second pressure block away from the V-groove.

[0011] In some embodiments, both the first and second pressure grooves are provided with pressure teeth. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of a four-wire parallel tension clamp provided in this application embodiment. Figure 1 ;

[0013] Figure 2 A schematic diagram of the overall structure of a four-wire parallel tension clamp provided in this application embodiment. Figure 2 ;

[0014] Figure 3 This is a cross-sectional view of a four-wire parallel tension clamp provided in an embodiment of this application.

[0015] The following are the labeling elements in the figure:

[0016] 1. Housing; 11. V-groove; 12. Slide groove; 13. Guide groove; 2. First pressure block; 21. First pressure groove; 22. Guide bar; 23. Pressure teeth; 3. First locking assembly; 31. First U-shaped locking bar; 32. Locking ring; 4. Second locking assembly; 41. Second pressure block; 411. Second pressure groove; 42. Second U-shaped locking bar. Detailed Implementation

[0017] Common bolt-type tension clamps require the conductor to be threaded through the V-groove during installation. Several U-bolts are then used to press the flat pressure block onto the conductor, thus securing it within the V-groove. The conductor is fixed by the friction between the conductor, the flat pressure block, and the inner wall of the V-groove. However, some conductors have high flexibility and resilience, making them difficult to bend. After installation, the conductor at the bend in the V-groove may lift up, failing to properly fit against the inner wall of the V-groove. This reduces the contact area between the conductor and the clamp, making conductor slippage more likely.

[0018] Based on this, in order to improve the problem in the related technology that the part of the conductor located at the bend of the V-groove of the tension clamp is prone to warping, resulting in a reduction in the contact area between the conductor and the clamp and easy slippage of the conductor, the embodiments of this application provide the following solution.

[0019] The following combination Figures 1-3 This application will be described in further detail.

[0020] This embodiment discloses a four-wire parallel tension clamp, including: a housing 1, a first pressure block 2, and a first locking component 3; the housing 1 has a through V-shaped groove 11, and the first pressure block 2 is slidably disposed inside the housing 1; the side of the first pressure block 2 near the V-shaped groove 11 has a first pressure groove 21, the shape of the first pressure groove 21 being adapted to the shape of the bend of the V-shaped groove 11; the first locking component 3 is disposed on the housing 1 and is used to apply a force to the first pressure block 2 to bring the first pressure block 2 closer to the V-shaped groove 11.

[0021] As can be seen from the above, the four-wire parallel tension clamp provided in this application embodiment involves inserting the wire through the inlet of the V-groove 11 and out through the outlet when installing the clamp. Then, the first locking component 3 applies a pushing force to the first pressure block 2 to bring it close to the wire. The first pressure block 2 slides inside the housing 1 and is pressed against the wire by the first pressure groove 21. Then, the first locking component 3 continues to apply pressure to the first pressure block 2 until the wire is pressed tightly and the first locking component 3 maintains pressure on the wire. Since the shape of the first pressure groove 21 is adapted to the shape of the bend of the V-groove 11, the first pressure block 2 presses the wire against the bend of the V-groove 11 through the first pressure groove 21 and makes the shape of the wire after bending consistent with the shape of the bend of the V-groove 11 and the shape of the first pressure groove 21. This makes the wire fit better with the V-groove 11, avoids the wire bending at the bend from reducing the contact area between the wire and the clamp, and reduces the possibility of wire slippage.

[0022] In some embodiments, please refer to the following: Figures 1 to 3The first locking component 3 includes a first U-shaped locking bar 31 and a pair of locking rings 32; the locking rings 32 are symmetrically arranged on both sides of the housing 1 and fixedly connected to the housing 1; a sliding groove 12 is provided on the housing 1, and the two ends of the first U-shaped locking bar 31 pass through the two locking rings 32 respectively and are threaded with nuts. The first U-shaped locking bar 31 passes through the sliding groove 12 and is slidably connected to the housing 1. The first U-shaped locking bar 31 abuts against the side of the first pressure block 2 away from the V-shaped groove 11.

[0023] With this setup, when installing the wire clamp, after passing the wire through the V-groove 11, tighten the nuts at both ends of the first U-shaped locking bar 31. The nuts abut against the locking ring 32 and pull the first U-shaped locking bar 31 towards the wire. The first U-shaped locking bar 31 slides inside the slide groove 12 and pushes the first pressure block 2 to move and press it onto the wire. Then, continue to tighten the nuts to press the wire into the V-groove 11.

[0024] Optionally, in some embodiments, please refer to Figures 1 to 3 A guide groove 13 is provided on the inner wall of the housing 1, and a guide strip 22 is fixedly provided on the first pressure block 2. The first pressure block 2 is slidably connected to the inner wall of the housing 1, and the guide strip 22 is slidably connected inside the guide groove 13.

[0025] With this configuration, when the first locking component 3 drives the first pressing block 2 to slide inside the housing 1, the first pressing block 2 drives the guide strip 22 to slide inside the guide groove 13. The guide strip 22 can guide the first pressing block 2, so that the first pressing block 2 slides along the direction of the guide groove 13 when sliding, thereby preventing the position of the first pressing block 2 from shifting, so that the first pressing block 2 and the V-groove 11 can better cooperate to press the wire tightly, and improve the fixing effect of the first pressing block 2 on the wire.

[0026] Optionally, please refer to Figure 1 and Figure 2 The tension clamp also includes a second locking component 4, which includes a second pressure block 41 and a locking member. The second pressure block 41 is slidably disposed on the housing 1. A second pressure groove 411 is provided on the side of the second pressure block 41 near the V-groove 11. The locking member is disposed on the housing 1 and is used to apply a force to the second pressure block 41 to bring the second pressure block 41 closer to the V-groove 11.

[0027] With this configuration, several sets of the second locking components 4 can be set, and the second pressure block 41 is set parallel to the non-bending part of the V-groove 11. When installing the wire clamp, the wire is first fixed by the first locking component 3 and the first pressure block 2, and then the locking component applies a pushing force to the second pressure block 41 to bring it close to the wire, so that the second pressure block 41 contacts the wire and the wire is pressed into the V-groove 11 by the second wire pressing groove 411. The second locking component 4 can make the wire clamp more securely fixed to the wire.

[0028] In some embodiments, please refer to Figure 1 and Figure 2 The locking component includes a second U-shaped locking bar 42; both ends of the second U-shaped locking bar 42 pass through the housing 1 and are threaded with nuts, and the second U-shaped locking bar 42 abuts against the side of the second pressure block 41 away from the V-groove 11.

[0029] With this configuration, when fixing the wire using the second locking component 4, tightening the nuts at both ends of the second U-shaped locking bar 42 causes the nuts to move the second U-shaped bar. The second U-shaped locking bar 42 then pushes the second pressure block 41 to move and contact the wire. Continue tightening the nuts until the second pressure block 41 presses the wire tightly inside the V-groove 11.

[0030] Optionally, in some embodiments, please refer to Figure 3 Both the first pressure groove 21 and the second pressure groove 411 are provided with pressure teeth 23.

[0031] With this configuration, after the wire is pressed into the locking bar by the first pressure block 2 and the second pressure block 41, the wire pressing teeth 23 contact the surface of the wire, which can increase the friction between the first pressure block 2, the second pressure block 41 and the wire, making the wire clamp more secure in fixing the wire.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A four-wire parallel tension clamp, characterized in that, include: Shell (1); First pressing block (2); as well as The first locking component (3) is provided; a through V-shaped groove (11) is provided on the housing (1), and the first pressing block (2) is slidably disposed inside the housing (1); a first pressing groove (21) is provided on the side of the first pressing block (2) near the V-shaped groove (11), and the shape of the first pressing groove (21) is adapted to the shape of the bend of the V-shaped groove (11); the first locking component (3) is disposed on the housing (1) and is used to apply a force to the first pressing block (2) to make the first pressing block (2) approach the V-shaped groove (11).

2. The four-wire parallel tension clamp according to claim 1, characterized in that: The first locking component (3) includes a first U-shaped locking bar (31) and a pair of locking rings (32); the locking rings (32) are symmetrically arranged on both sides of the housing (1) and fixedly connected to the housing (1); a sliding groove (12) is provided on the housing (1); the two ends of the first U-shaped locking bar (31) pass through the two locking rings (32) respectively and are threaded with nuts; the first U-shaped locking bar (31) passes through the sliding groove (12) and is slidably connected to the housing (1); the first U-shaped locking bar (31) abuts against the side of the first pressure block (2) away from the V-shaped groove (11).

3. A four-wire parallel tension clamp according to claim 1, characterized in that: The inner wall of the housing (1) is provided with a guide groove (13), and a guide strip (22) is fixedly provided on the first pressure block (2). The first pressure block (2) is slidably connected to the inner wall of the housing (1), and the guide strip (22) is slidably connected inside the guide groove (13).

4. A four-wire parallel tension clamp according to claim 1, characterized in that: The tension clamp further includes a second locking assembly (4), which includes a second pressure block (41) and a locking member. The second pressure block (41) is slidably disposed on the housing (1). A second pressure groove (411) is provided on the side of the second pressure block (41) near the V-groove (11). The locking member is disposed on the housing (1) and is used to apply a force to the second pressure block (41) to make the second pressure block (41) approach the V-groove (11).

5. A four-wire parallel tension clamp according to claim 4, characterized in that: The locking component includes a second U-shaped locking bar (42); both ends of the second U-shaped locking bar (42) pass through the housing (1) and are threaded with nuts, and the second U-shaped locking bar (42) abuts against the side of the second pressure block (41) away from the V-groove (11).

6. A four-wire parallel tension clamp according to claim 4, characterized in that: Both the first pressure groove (21) and the second pressure groove (411) are provided with pressure teeth (23).

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