Forged anti-corrosion aluminum-clad steel strain clamp

Abstract

The invention relates to the technical field of power transmission, in particular to a forged anti-corrosion aluminum-clad steel strain clamp. The device comprises a pushing assembly, the pushing assembly comprises two ejector blocks and a fixed block fixed to the outer wall of the shell, the surface of one ejector block is rotationally connected with a second adjusting nut used for assisting the wedge-shaped block in active feeding, and a compression spring used for providing elastic force to make up an elastic deformation area of the wedge-shaped block is arranged between the two ejector blocks. Active feeding of the wedge-shaped block is achieved through the second adjusting nut, stable and controllable clamping pre-tightening force can be formed in the initial stage of machining, a continuous compensation effect can be provided in long-term operation, and when the clamping force on a wire is reduced due to aging of the cushion block after long-term use, the wire can be clamped by the wedge-shaped block. And the plurality of pressure springs arranged between the top blocks can continuously apply pressure to the top blocks, so that the distance between the two wedge-shaped blocks is adaptively reduced, the device is prevented from loosening the clamping of the wire due to the aging of the cushion block, and the service life and the maintenance-free period of the device are greatly prolonged.

Description

Technical Field

[0001] This invention relates to a tension clamp, and more specifically, to a forged, corrosion-resistant aluminum-clad steel tension clamp. Background Technology

[0002] Tension clamps are core connecting hardware used in power transmission lines to fix conductors and transmit tension. Their main function is to fix conductors or ground wires to tension towers (such as terminal towers and angle towers), while bearing the full tension of the conductors. They also work with insulator strings to achieve insulation and tension balance of the line. They are key components to ensure the safe and stable operation of transmission lines and are widely used in high-voltage, ultra-high-voltage and extra-high-voltage power transmission projects.

[0003] Among numerous bolt-type tension clamp designs, the wedge-block clamping method is favored due to its simple structure and reliable clamping. In this type of clamp, the wedge block, as a key locking component, uses its inclined surface structure to reliably clamp and fix the conductor. Currently, wedge blocks with toothed structures are mostly made of metal to ensure sufficient mechanical strength and durable locking effect. However, in certain specific applications, designs using rubber wedge blocks also exist to meet the locking requirements under specific working conditions.

[0004] However, the inherent viscoelasticity and aging properties of rubber materials present significant technical challenges during long-term service. With prolonged use, rubber wedges are prone to stress relaxation and creep, leading to gradual changes in their geometry and a decrease in the fitting accuracy of the wedge structure. Once the wedge surface loses its original tight fit due to deformation, the locking function weakens or even completely fails. At this point, due to the irreversible deformation of the rubber material, the wedge cannot actively maintain continuous pressure on the conductor and can only passively feed with the conductor's displacement, thus losing its self-locking capability and severely affecting the long-term reliability and safety of the clamp.

[0005] Especially for wedge-shaped clamping structures using rubber pads, the problem of clamping force attenuation due to rubber aging after long-term operation is particularly prominent. This not only affects the fixing effect of the conductor, but may also cause safety hazards such as increased contact resistance and local overheating, ultimately threatening the stable operation of the entire power transmission system. In view of this, the present invention proposes a forged corrosion-resistant aluminum-clad steel tension clamp. Summary of the Invention

[0006] The purpose of this invention is to provide a forged, corrosion-resistant aluminum-clad steel tension clamp to solve the problems mentioned in the background art, such as the rubber on the wedge block in existing tension clamps failing to actively maintain continuous clamping of the conductor after aging, and the problems of clamping force attenuation and safety reduction caused by material aging in traditional structures during long-term use.

[0007] To address the aforementioned issues, a forged, corrosion-resistant aluminum-clad steel tension clamp is provided, comprising a housing with an internal wedge-shaped groove that narrows from wide to narrow. A clamping assembly is slidably disposed within the wedge-shaped groove, comprising two symmetrical wedge blocks. Both the housing and the wedge blocks are made of forged aluminum-clad steel, and a cavity for clamping the wire is formed between the two wedge blocks. A pushing assembly is disposed between the ends of the two wedge blocks, comprising two top blocks and a fixing block fixed to the outer wall of the housing. The two wedge blocks slide on the surface of one of the top blocks, and a second adjusting nut for assisting the active feeding of the wedge blocks is rotatably connected to the surface of the other top block. The thread of the second adjusting nut passes through the fixing block. Furthermore, a compression spring is provided between the two top blocks to provide elastic force to compensate for the elastic deformation zone of the wedge block; Limiting components are provided between the inner walls on both sides of the housing and the outer walls of the two wedge blocks. The limiting components are used to lock the wedge blocks in one direction.

[0008] By turning the No. 2 adjusting nut, the No. 2 adjusting nut slides inward along the screw hole on the surface of the fixing block. On the one hand, when the line is in the cavity, it actively drives the top block to feed, causing the two wedge blocks to converge along the inclined surface of the wedge groove. This helps to press the wedge blocks against the conductor, forming a continuous and controllable clamping force. It does not need to rely on the tension generated after the conductor is subjected to force to passively clamp. Moreover, the actively applied clamping force can remain stable, avoiding the decrease in clamping force or the generation of gaps caused by tension fluctuations during passive clamping.

[0009] As a further improvement to this technical solution, the wedge block is symmetrically slidably disposed on one side of a top block, and a slide rail for limiting the wedge block is fixedly disposed on the side of the top block near the wedge block. The material of the top block is the same as that of the shell. Both top blocks have slots in the middle for wires to pass through, and small holes corresponding to the slots on the top blocks are opened at the two ends of the housing that are far apart from each other.

[0010] When the wire passes through the housing, it first passes through a small hole at one end of the housing, then through two wedge blocks and a top block, and finally exits from the other end of the housing. The wire passes through the slot in the middle of the top block without affecting the normal sliding of the top block.

[0011] As a further improvement to this technical solution, the limiting component includes a limiting plate, which is slidably disposed inside the housing, and a track that cooperates with the limiting plate is fixedly provided inside the housing.

[0012] When the wedge block slides, it slides along the direction set by the limiting plate. When the first tooth block and the second tooth block mesh, the wedge block can only move in the direction that the top block pushes against the wedge block. It cannot move in the opposite direction to prevent the wedge block from sliding in the opposite direction, which would increase the distance between the two wedge blocks and cause the clamping of the wire to loosen.

[0013] As a further improvement to this technical solution, the limiting plate is fixedly provided with multiple second-order toothed blocks on the side near the clamping assembly, with each second-order toothed block arranged at equal intervals. Segmenting the first and second tooth blocks can optimize load distribution. For example, using a larger pressure angle or rounding the tooth root in the tooth segment with the highest load can reduce stress concentration. At the same time, smooth meshing reduces impact load, thereby extending the fatigue life of the limit plate and the second tooth block. Furthermore, the segmented design allows the load to be shared by multiple segments of the second and first tooth blocks, significantly reducing torque fluctuation and making the operation smoother and quieter.

[0014] As a further improvement to this technical solution, one end of the limiting plate is rotatably connected to an adjusting nut, which is used to push the limiting plate to move along the track. The adjusting nut extends out of the housing, and the housing has a threaded hole that engages with the adjusting nut.

[0015] After the pad holds the wire, the user can use a wrench to turn the No. 1 adjusting nut and push the limit plate to fine-tune the position of the limit plate, so that the No. 2 tooth block is fully engaged with the No. 1 tooth block, thereby improving the stability of the device.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this forged anti-corrosion aluminum-clad steel tension clamp, the active feeding of the wedge block is achieved through the No. 2 adjusting nut. This not only forms a stable and controllable clamping preload in the initial stage of installation, but also provides continuous compensation during long-term operation. When the clamping force on the conductor decreases due to aging of the pads after long-term use, the multiple compression springs set between the top blocks can continuously apply pressure to the top blocks, thereby pushing the wedge blocks to move towards the conductor, so that the distance between the two wedge blocks adaptively decreases. This self-adjusting mechanism effectively compensates for the stress relaxation and deformation caused by the aging of the rubber material, prevents the device from loosening its clamping force on the conductor due to the aging of the pads, and greatly extends the service life and maintenance-free period of the device.

[0017] 2. In this forged anti-corrosion aluminum-clad steel tension clamp, after the No. 2 adjusting nut drives the wedge block to fix the wire, the adjustable limit component is set to achieve precise control and reliable locking of the clamping component. The user can make fine adjustments to the position of the limit plate by rotating the No. 1 adjusting nut, ensuring that after the two pads clamp the wire firmly, the No. 2 tooth block can fully mesh with the corresponding No. 1 tooth block. This effectively prevents the problem of unstable clamping caused by incomplete meshing of tooth blocks in traditional structures, and significantly improves the stability and reliability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a schematic diagram of the clamping component structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the wedge block of the present invention; Figure 5 This is a schematic diagram of the limiting component and slider structure of the present invention; Figure 6 This is a schematic diagram of the limiting component structure of the present invention; Figure 7 This is a schematic diagram of the pushing component structure of the present invention; Figure 8 This is a schematic diagram of the internal structure of the housing after the wire passes through it, according to the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Housing; 2. Clamping assembly; 21. Wedge block; 22. Slider; 23. Tooth block No. 1; 24. Spring; 25. Pad block; 3. Limiting assembly; 31. Limiting plate; 32. Second toothed block; 33. First adjusting nut; 4. Pushing component; 41. Top block; 42. Compression spring; 43. Fixing block; 44. No. 2 adjusting nut; 5. Aluminum ring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1 Please see Figures 1-8As shown, this embodiment provides a forged anti-corrosion aluminum-clad steel tension clamp, including a housing 1. The inside of the housing 1 has a wedge-shaped groove that narrows from wide to narrow, and a clamping component 2 is slidably disposed inside the wedge-shaped groove. The clamping component 2 includes two left-right symmetrical wedge blocks 21. The housing 1 is made of forged aluminum-clad steel, and the wedge blocks 21 are made of rubber. A cavity for clamping the wire is formed between the two wedge blocks 21. The wire is passed through the cavity, and then one end of the wire is clamped and fixed by the two wedge blocks 21. An aluminum ring 5 is fixedly installed on the outside of the housing 1 to support the housing 1. The aluminum ring 5 is mainly used to connect the main body of the device with external hardware (such as insulator strings and tower crossarms), and at the same time transmit conductor tension and adapt to the installation angle. One end of the aluminum ring 5 is fastened to the housing 1 by bolts, and the other end is connected to hardware such as the "ball head hanging ring" of the insulator string and the "hanging plate" of the tower crossarm.

[0023] One of its purposes is that a pushing assembly 4 is provided between the ends of the two wedge blocks 21. The pushing assembly 4 includes two top blocks 41 and a fixing block 43 fixed to the outer wall of the housing 1. The two wedge blocks 21 slide on the surface of one of the top blocks 41, and the surface of the other top block 41 is rotatably connected to a second adjusting nut 44 for assisting the active feeding of the wedge block 21. The second adjusting nut 44 is threaded through the fixing block 43. Furthermore, a compression spring 42 is provided between the two top blocks 41 to provide elastic force to compensate for the elastic deformation zone of the wedge block 21. The elastic deformation zone is the space caused by the deformation of the rubber wedge block 21 as the usage time increases, and the wedge block 21 cannot fully restore its original shape. A pad 25 is fixedly provided on the side of the two wedge blocks 21 that is close to each other. The pad 25 is made of rubber, and the side of the pad 25 that contacts the wire is arc-shaped to increase the contact area between the pad 25 and the wire, so that the wedge block 21 clamps the wire more firmly. By turning the second adjusting nut 44, the second adjusting nut 44 slides inward along the screw hole on the surface of the fixing block 43. On the one hand, when the line is in the cavity, the top block 41 is actively driven to feed, which drives the two wedge blocks 21 to converge along the inclined surface of the wedge groove. This helps to press the wedge blocks 21 against the wire, forming a continuous and controllable clamping force. It does not need to rely on the tension generated after the wire is subjected to force to passively clamp. Moreover, the actively applied clamping force can remain stable, avoiding the decrease in clamping force or the generation of gaps caused by tension fluctuations during passive clamping. On the other hand, after the two wedge blocks 21 clamp and fix the line, one of the top blocks 41 continues to slide actively towards the other top block 41, so that the compression spring 42 is in a compressed state. As the wedge block 21 deforms and an elastic deformation zone is generated over a long period of time, the top block 41 is driven to fit against the end of the wedge block 21 under the elastic force of the compression spring 42, which compensates for the locking failure caused by the elastic deformation zone, improves the clamping stability of the wedge block 21 on the wire, and prevents the clamping of the wire from loosening due to the deformation of the wedge block 21. Furthermore, slots for wires to pass through are provided in the middle of the two top blocks 41, and small holes corresponding to the slots on the top blocks 41 are provided at the two ends of the housing 1 that are far apart from each other. When the wire passes through the housing 1, the wire first passes through the small hole at one end of the housing 1, and then passes through the two wedge blocks 21 and the top block 41 before exiting from the other end of the housing 1. The wire does not affect the normal sliding of the top block 41 after passing through the slot in the middle of the top block 41. Please see Figures 2-5 As shown, the second purpose is that: a limit component 3 is provided between the inner walls on both sides of the housing 1 and the outer walls of the two wedge blocks 21, and the limit component 3 is used to lock the wedge blocks 21 in one direction. Specifically, the limiting component 3 includes a limiting plate 31, and the wedge block 21 has an inclined surface on the side near the limiting plate 31. The limiting plate 31 is set at an angle and is parallel to the inclined surface of the wedge block 21. The distance between the two limiting plates 31 gradually decreases as the top block 41 pushes the wedge block 21. In other words, in the initial stage when the two wedge blocks 21 are ready to clamp and fix the line, the distance between the two wedge blocks 21 continuously decreases as the top block 41 continuously pushes the wedge block 21. This is beneficial for the user to adjust the distance between the two wedge blocks 21 according to the thickness of the wire. Please see Figures 2-5 As shown, in order to prevent the position of the wedge block 21 from shifting, the wedge block 21 is symmetrically slidably disposed on one side of a top block 41. The top block 41 is fixedly provided with a slide rail for limiting the wedge block 21 on the side close to the wedge block 21. When the top block 41 pushes the wedge block 21, the two wedge blocks 21 gradually move towards each other along the slide rail on the top block 41 until the two pads 25 clamp and fix the wire.

[0024] Please see Figures 2-6As shown, a slider 22 is slidably disposed inside the wedge block 21. One side of the slider 22 is exposed outside the wedge block 21. The portion of the slider 22 exposed outside the wedge block 21 is an inclined surface parallel to the limiting plate 31. During the stage of clamping and fixing the circuit between the two wedge blocks 21, when the top block 41 pushes the wedge block 21, the slider 22 slides along the direction set by the limiting plate 31 with the wedge block 21. Multiple rows of second-order toothed blocks 32 are fixedly disposed on the side of the limiting plate 31 near the clamping assembly 2. The second-order toothed blocks 32 are arranged at equal intervals. Multiple rows of first-order toothed blocks 23 are fixedly disposed on the inclined surface of the slider 22 exposed outside the wedge block 21. The first-order toothed blocks 23 are arranged at equal intervals, and the distance between two adjacent first-order toothed blocks 23 is the same as the distance between two adjacent second-order toothed blocks 32. Specifically: The segmented design of the first tooth block 23 and the second tooth block 32 can optimize the load distribution. For example, using a larger pressure angle or rounding the tooth root in the tooth segment with the largest load can reduce stress concentration. At the same time, smooth meshing reduces impact load, thereby extending the fatigue life of the limit plate 31 and the second tooth block 32. Furthermore, the segmented design allows the load to be shared by multiple segments of the second tooth block 32 and the first tooth block 23, significantly reducing torque fluctuation and making the operation smoother and quieter.

[0025] For further explanation, please refer to [link / reference]. Figures 2-6 As shown, the tooth inclination direction of the first tooth block 23 is opposite to that of the second tooth block 32, and the tooth shape is compatible. When the first tooth block 23 and the second tooth block 32 mesh, the wedge block 21 can only move in the direction that the top block 41 pushes the wedge block 21, and cannot move in the opposite direction. This prevents the wedge block 21 from sliding in the opposite direction, which would increase the distance between the two wedge blocks 21 and cause the clamping of the wire to loosen. Furthermore, to prevent the first tooth block 23 from failing to engage with the second tooth block 32 when the wedge block 21 stops sliding, springs 24 for pushing the slider 22 are symmetrically fixed inside the wedge block 21. The two ends of the springs 24 are fixedly connected to the inner walls of the slider 22 and the wedge block 21, respectively. When the wedge block 21 is sliding, the second tooth block 32 will continuously contact the new first tooth block 23. At the same time, under the pressure of the second tooth block 32, the slider 22 slides slightly into the wedge block 21. When the first tooth block 23 and the second tooth block 32 break contact, the two springs 24 immediately drive the slider 22 to rebound outward, so that the wedge block 21 stops sliding and the first tooth block 23 and the second tooth block 32 are engaged. The wedge block 21 is locked to prevent it from sliding in the opposite direction and causing the clamping of the wire to loosen.

[0026] Furthermore, considering that after the pad 25 clamps the wire, the first tooth block 23 may not fully engage with the second tooth block 32, resulting in insufficient clamping of the wire, please refer to [the relevant documentation]. Figures 2-6As shown, the limiting plate 31 is slidably disposed inside the housing 1, and a track that cooperates with the limiting plate 31 is fixedly provided inside the housing 1. One end of the limiting plate 31 is rotatably connected to an adjusting nut 33, which is used to push the limiting plate 31 to move along the track. The adjusting nut 33 extends out of the housing 1, and a screw hole that is threadedly engaged with the adjusting nut 33 is provided on the housing 1. The part of the adjusting nut 33 located inside the limiting plate 31 is not threaded to prevent the adjusting nut 33 from failing to push the limiting plate 31 when rotating. After the pad 25 clamps the wire, the user can use a wrench to rotate the adjusting nut 33 and push the limiting plate 31 to finely adjust the position of the limiting plate 31, so that the second tooth block 32 and the first tooth block 23 are fully engaged to improve the stability of the device.

[0027] Please see Figures 2-7 As shown, in order to prevent the clamping of the wire by the pad 25 from loosening due to aging, after the wire is fixed, multiple compression springs 42 squeeze the top block 41. In order to prevent the compression spring 42 from being bent by the two top blocks 41, a telescopic guide rod is fixedly installed inside the compression spring 42, so that the spring 24 can always perform stable axial extension and contraction. When the pad 25 ages or loosens, the top block 41 continuously pushes the wedge block 21 under the compression of the compression spring 42, so that the two wedge blocks 21 continuously slide towards each other and squeeze the wire. The distance between the two wedge blocks 21 continuously decreases and always maintains a stable clamping of the wire.

[0028] Therefore, based on the above, the working principle of this invention can be summarized as follows: First, the user passes the wire through both ends of the housing 1. Then, by rotating the second adjusting nut 44, the top block 41 pushes the two wedge blocks 21 until the two pads 25 clamp and fix the wire. After fixing the wire, the user adjusts the position of the limiting plate 31 by rotating the first adjusting nut 33, so that the second tooth block 32 and the first tooth block 23 are fully engaged to improve the stability of the device. When the pads 25 age and the clamping of the wire becomes loose, the top block 41 continues to push the wedge blocks 21 under the pressure of multiple compression springs 42, so that the distance between the two wedge blocks 21 is continuously reduced to maintain a stable clamping of the wire.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forged corrosion-resistant aluminum-clad steel tension clamp, comprising a housing (1), wherein the housing (1) has a wedge-shaped groove that narrows from wide to narrow inside, and a clamping assembly (2) is slidably disposed inside the wedge-shaped groove, the clamping assembly (2) comprising two left-right symmetrical wedge blocks (21), and a cavity for clamping the line is formed between the two wedge blocks (21), characterized in that: A pushing assembly (4) is provided between the ends of the two wedge blocks (21). The pushing assembly (4) includes two top blocks (41) and a fixing block (43) fixed to the outer wall of the housing (1). The two wedge blocks (21) slide on the surface of one of the top blocks (41), and the surface of the other top block (41) is rotatably connected to a second adjusting nut (44) for assisting the active feeding of the wedge block (21). The second adjusting nut (44) is threaded through the fixing block (43). Furthermore, a compression spring (42) is provided between the two top blocks (41) to provide elastic force to compensate for the elastic deformation zone of the wedge block (21). Limiting components (3) are provided between the inner walls on both sides of the housing (1) and the outer walls of the two wedge blocks (21). The limiting components (3) are used to lock the wedge blocks (21) in one direction.

2. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 1, characterized in that: The wedge block (21) is symmetrically slidably disposed on one side of a top block (41). The top block (41) is fixedly provided with a slide rail for limiting the wedge block (21) on the side close to the wedge block (21). The material of the top block (41) is the same as that of the shell (1). Both top blocks (41) have slots for wires to pass through at their middle positions, and the housing (1) has small holes at its two far ends that correspond to the slots on the top blocks (41).

3. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 1, characterized in that: The wedge block (21) has a slider (22) slidably disposed inside it, and one side of the slider (22) is exposed outside the wedge block (21); The portion of the slider (22) exposed outside the wedge block (21) is an inclined surface parallel to the limiting plate (31).

4. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 3, characterized in that: The slider (22) is exposed on the inclined surface outside the wedge block (21) and has multiple first tooth blocks (23) fixedly arranged. Each first tooth block (23) is arranged at equal intervals, and the distance between two adjacent first tooth blocks (23) is the same as the distance between two adjacent second tooth blocks (32). The tooth inclination direction of the first tooth block (23) is opposite to that of the second tooth block (32), and the tooth shape is compatible.

5. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 1, characterized in that: The wedge block (21) is symmetrically and fixedly provided with springs (24) for pushing the slider (22), and the two ends of the springs (24) are fixedly connected to the inner walls of the slider (22) and the wedge block (21), respectively.

6. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 1, characterized in that: Both wedges (21) are axially arranged on the side that is close to each other, and a pad (25) is fixedly provided on the side that is close to each other. The pad (25) is made of rubber.

7. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 1, characterized in that: The limiting component (3) includes a limiting plate (31), which is slidably disposed inside the housing (1), and a track that cooperates with the limiting plate (31) is fixedly provided inside the housing (1).

8. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 7, characterized in that: The wedge block (21) has an inclined surface on the side near the limiting plate (31), and the limiting plate (31) is set at an angle and is parallel to the inclined surface of the wedge block (21).

9. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 7, characterized in that: The limiting plate (31) is fixedly provided with multiple No. 2 tooth blocks (32) on the side near the clamping assembly (2), and each No. 2 tooth block (32) is arranged at equal intervals.

10. The forged corrosion-resistant aluminum-clad steel tension clamp according to claim 7, characterized in that: One end of the limiting plate (31) is rotatably connected to an adjusting nut (33) for pushing the limiting plate (31) to move along the track. The adjusting nut (33) extends out of the housing (1), and the housing (1) is provided with a screw hole that is threaded to the adjusting nut (33). An aluminum ring (5) is fixedly provided on the outside of the housing (1) for supporting the housing (1).

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