A strain clamp

Abstract

This utility model provides a tension clamp, relating to the field of power engineering. The utility model includes a tension clamp body. A conductor is inserted through the inner wall of the tension clamp body at one end, with its outer surface placed on a pressing plate. Then, it is pulled and pressed downwards, causing the pressing plate to move downwards and several abutment rods to slide downwards. These abutment rods push a limiting rod to rotate on a protrusion. At this point, the other end of the limiting rod, after rotating to a certain angle, inserts into a rectangular groove and presses against the top of the conductor, fixing the conductor to the pressing plate. When the pressing plate moves downwards to a certain position, it is fixed and locked by a fixing mechanism. Therefore, the conductor is confined within the inner wall of the tension clamp body. This operation requires no additional construction tools, is simple to operate, easy to install, reduces safety hazards during high-altitude operations, improves the reliability of conductor fixation, and ensures the stability and safety of the power transmission system.

Description

Technical Field

[0001] This utility model relates to the field of power engineering, and in particular to a tension clamp. Background Technology

[0002] Tension clamps are devices used in power lines, whose main function is to securely fix the wires to poles or towers, ensuring the stability and safety of the line.

[0003] In power transmission systems, tension clamps are key components for fixing conductors and bearing conductor tension. Their performance directly affects the stability and safety of transmission lines. Traditional tension clamps rely on U-bolts and nuts for fastening with tools. Although they can effectively fix conductors, the installation process is cumbersome and inconvenient in high-altitude or complex environments, which can easily lead to low construction efficiency and installation difficulties. Furthermore, because tools are required, operators may make mistakes or install insecurely under harsh conditions, which can affect the reliability of conductor fixing and thus threaten the stability and safety of the power transmission system. Utility Model Content

[0004] The technical problem this utility model aims to solve is that traditional tension clamps rely on U-bolts and nuts for fastening with tools. Although they can effectively fix the conductors, the installation process is cumbersome and inconvenient in high-altitude or complex environments, which can easily lead to low construction efficiency and installation difficulties. Furthermore, because tools are required, operators may make mistakes or install the wires insecurely under harsh conditions, which can affect the reliability of the conductor fixation and threaten the stability and safety of the power transmission system.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a tension clamp, including a tension clamp body, wherein a limiting device is provided on the inner wall of one end of the tension clamp body. The limiting device can insert the wire into the inner wall of the tension clamp body, and then pull and press it downward to push the extrusion plate downward. The limiting rod is pushed by the abutment rod to rotate on the protrusion to a certain angle, thereby clamping and limiting the wire in the inner wall of the tension clamp body. Then, the extrusion plate is fixed and locked after being pressed to a certain position by a fixing mechanism. This achieves the effect of limiting and fixing the wire to the tension clamp body without tools and additional operations, which is convenient for installation.

[0006] Preferably, the limiting device includes a compression plate and several first springs, wherein the two ends of the first springs are respectively fixedly installed on one side of the compression plate and one side of the inner wall of the tension clamp body, and several rectangular grooves are provided on both sides of the inner wall of the tension clamp body; several protrusions, wherein one side of several protrusions is symmetrically fixedly installed on one side of the tension clamp body; several limiting rods, wherein the two ends of the limiting rods are respectively rotatably installed on one side of two opposite protrusions, and one end is inserted into the inner wall of the rectangular groove; several torsion springs, wherein the outer surface of the torsion springs is inserted into the inner wall of one end of the limiting rod, and the two ends are respectively fixedly installed on one side of the protrusion and one side of the inner wall of the limiting rod; several abutting rods, wherein one end of the abutting rod is fixedly installed on one side of the compression plate, and the other end passes through the inner wall of the tension clamp body and abuts against one side of the limiting rod; and a fixing mechanism, wherein the fixing mechanism is disposed between one side of the compression plate and one side of the tension clamp body, and is used to fix and lock the compression plate after the position is adjusted.

[0007] The effect achieved by the above-mentioned components is as follows: By setting a limiting device, when the tension clamp body is installed on a pole or tower to limit and fix the conductor, the tension clamp body is first fixed to the pole or tower with bolts. Then, the conductor is inserted through the inner wall of the tension clamp body and inserted into the inner wall at one end, so that its outer surface abuts against the compression plate. Then, it is pulled and pressed downwards, causing the compression plate to move downwards in the inner wall of the tension clamp body, compressing the first spring and simultaneously causing several abutment rods on one side to slide downwards on one side of the inner wall of the tension clamp body. The limiting rod rotates on the protrusion, causing the torsion spring to deform. At this time, the other end of the limiting rod, after rotating to a certain angle, inserts into the rectangular groove and presses against the top of the conductor, fixing the conductor to the extrusion plate. After the extrusion plate moves downward to a certain position, it is fixed and locked by the fixing mechanism. Thus, the conductor can be limited in the inner wall of the tension clamp body. This operation does not require additional construction tools, and the operation steps are simple and easy to install. It reduces the safety hazards during high-altitude operations, improves the reliability of conductor fixing, and ensures the stability and safety of the power transmission system.

[0008] Preferably, the limiting device further includes several round rollers, wherein the two ends of the round rollers are respectively rotatably mounted on both sides of the inner wall of the end of the abutment rod near the limiting rod.

[0009] The effect achieved by the above components is that by setting up the roller, the contact friction between one end of the abutment rod and the limiting rod can be reduced, making it easier to abut and push, and facilitating operation.

[0010] Preferably, the limiting device further includes a rubber block, wherein one side of the rubber block is fixedly mounted on the side of the extrusion plate away from the first spring.

[0011] The effect achieved by the above components is that by setting the rubber block, the friction on one side of the extrusion plate can be increased, the wear between the wire and the extrusion plate can be reduced, and the service life of both can be improved.

[0012] Preferably, the fixing mechanism includes two rectangular rods, one side of which is fixedly installed on one side of the tension clamp body, and one side of the rectangular rod has several slots; a grooved rod, one side of which is fixedly installed on one side of the extrusion plate, and the other end of which passes through the inner wall of the tension clamp body; a locking block, one end of which is slidably installed in the inner wall of one end of the grooved rod, and the other end is inserted into the inner wall of the slot, and the longitudinal section of one end of the locking block is trapezoidal; and a second spring, the two ends of which are fixedly installed on one side of the locking block and one side of the inner wall of the grooved rod, respectively.

[0013] The effect achieved by the above components is as follows: by setting a fixing mechanism, when the extrusion plate moves downward, it can drive the groove rod to slide downward and drive the locking block to move in the same way. Under the reset action of the second spring, the locking block will be locked into the slot on the rectangular rod. Since the longitudinal section of one end of the locking block is trapezoidal, as the extrusion plate moves, the locking block slides in the groove rod with the extrusion until it is locked into the corresponding slot, thus fixing and locking the extrusion plate. Therefore, the limiting rod can be used to fix and lock the wire.

[0014] Preferably, the fixing mechanism further includes a plurality of telescopic rods, wherein the outer surface of the telescopic rods is inserted into the inner wall of the second spring, and both ends are respectively fixedly installed on one side of the locking block and one side of the inner wall of the groove rod.

[0015] The effect achieved by the above components is that by setting up the telescopic rod, the inner wall of the second spring can be supported and reinforced, making it less prone to damage during use and increasing its service life.

[0016] Preferably, a reinforcing rod is fixedly installed on one side of the rectangular rod, and one side of the reinforcing rod is fixedly installed on one side of the tension clamp body.

[0017] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between one side of the rectangular rod and the tension clamp body can be increased, making the connection more secure and stable, and less prone to breakage or damage.

[0018] The beneficial effects of this utility model are:

[0019] By setting a limiting device, when installing the tension clamp body on a pole or tower to limit and fix the conductor, the tension clamp body is first fixed to the pole or tower with bolts. Then, the conductor is inserted through the inner wall of the tension clamp body at one end, with its outer surface abutting against the compression plate. Then, it is pulled and pressed downwards, causing the compression plate to move downwards within the inner wall of the tension clamp body, compressing the first spring and simultaneously causing several abutment rods on one side to slide downwards along one side of the inner wall of the tension clamp body, abutting against and pushing the limiting device. The positioning rod rotates on the protrusion, causing the torsion spring to deform. At this time, after the other end of the limiting rod rotates to a certain angle, it inserts into the rectangular groove and presses against the top of the conductor, fixing the conductor to the extrusion plate. After the extrusion plate moves downward to a certain position, it is fixed and locked by the fixing mechanism. Thus, the conductor can be limited to the inner wall of the tension clamp body. This operation does not require additional construction tools, and the operation steps are simple and easy to install. It reduces the safety hazards during high-altitude operations, improves the reliability of conductor fixing, and ensures the stability and safety of the power transmission system. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the main body of the tension clamp of this utility model;

[0023] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0024] Figure 4 This is a three-dimensional structural diagram of the extrusion plate of this utility model;

[0025] Figure 5 for Figure 4 A magnified three-dimensional structural diagram at point A in the middle.

[0026] Legend: 1. Tension clamp body; 2. Limiting device; 21. Extrusion plate; 22. First spring; 23. Abutment rod; 24. Protrusion; 25. Limiting rod; 26. Torsion spring; 27. Circular roller; 28. Rubber block; 29. ​​Fixing mechanism; 291. Rectangular rod; 292. Slot; 293. Groove rod; 294. Second spring; 295. Locking block; 296. Telescopic rod; 297. Reinforcing rod; 210. Rectangular groove. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Figure 1-5 The tension clamp shown includes a tension clamp body 1. A limiting device 2 is provided on the inner wall of one end of the tension clamp body 1. The limiting device 2 allows the conductor to be inserted into the inner wall of the tension clamp body 1, and then pulled and pressed downwards, causing the pressing plate 21 to move downwards. The abutment rod 23 pushes the limiting rod 25 to rotate on the protrusion 24 to a certain angle, thus clamping and limiting the conductor within the inner wall of the tension clamp body 1. Then, a fixing mechanism 29 secures and locks the pressing plate 21 after it has been pressed to a certain position. This achieves the effect of limiting and fixing the conductor to the tension clamp body 1 without tools or additional operations, facilitating installation. It should be noted that the tension clamp body 1 is a mature technology and device in the prior art; its internal structure, connection method, and principle will not be elaborated further.

[0030] Figure 1-5The limiting device 2 shown includes a compression plate 21 and several first springs 22, wherein the two ends of the first springs 22 are respectively fixedly installed on one side of the compression plate 21 and one side of the inner wall of the tension clamp body 1. Several rectangular grooves 210 are provided on both sides of the inner wall of the tension clamp body 1; several protrusions 24, wherein one side of several protrusions 24 is symmetrically fixedly installed on one side of the tension clamp body 1; and several limiting rods 25, wherein the two ends of the limiting rods 25 are respectively rotatably installed on one side of two opposite protrusions 24, and one end is inserted into the inner wall of the rectangular groove 210. Several torsion springs 26 are inserted into the inner wall of one end of the limiting rod 25, and both ends are fixedly installed on one side of the protrusion 24 and one side of the inner wall of the limiting rod 25, respectively; several abutment rods 23 are fixedly installed on one side of the extrusion plate 21, and the other end passes through the inner wall of the tension clamp body 1 and abuts against one side of the limiting rod 25; a fixing mechanism 29 is arranged between one side of the extrusion plate 21 and one side of the tension clamp body 1, and is used to fix and lock the extrusion plate 21 after the position is adjusted. By setting the limiting device 2, when the tension clamp body 1 is installed on a pole or tower to limit and fix the conductor, the tension clamp body 1 is first fixed to the pole or tower with bolts. Then, the conductor is inserted through the inner wall of the tension clamp body 1 and inserted into the inner wall at one end, so that its outer surface abuts against the extrusion plate 21. Then, it is pulled and pressed downward, causing the extrusion plate 21 to move downward in the inner wall of the tension clamp body 1, compressing the first spring 22 and causing several abutment rods 23 on one side to slide downward on one side of the inner wall of the tension clamp body 1, abutting against the pushing limiting rod. The limit rod 25 rotates on the protrusion 24, causing the torsion spring 26 to deform. At this time, after the other end of the limit rod 25 rotates to a certain angle, it is inserted into the rectangular groove 210 and pressed against the top of the conductor to fix the conductor to the extrusion plate 21. After the extrusion plate 21 moves downward to a certain position, it is fixed and locked by the fixing mechanism 29. Thus, the conductor can be limited in the inner wall of the tension clamp body 1. This operation does not require additional construction tools, and the operation steps are simple and easy to install. It reduces the safety hazards during high-altitude operations, improves the fixing reliability of the conductor, and ensures the stability and safety of the power transmission system.

[0031] Figure 1-5The limiting device 2 also includes several rollers 27, with both ends of the rollers 27 rotatably mounted on the inner walls of the abutment rod 23 near the limiting rod 25. By providing the rollers 27, the contact friction between the abutment rod 23 and the limiting rod 25 can be reduced, facilitating abutment and pushing, and simplifying operation. The limiting device 2 also includes a rubber block 28, with one side of the rubber block 28 fixedly mounted on the side of the extrusion plate 21 away from the first spring 22. By providing the rubber block 28, the friction on one side of the extrusion plate 21 can be increased, reducing wear between the wire and the extrusion plate 21 and improving their service life.

[0032] Figure 1-5 The fixing mechanism 29 shown includes two rectangular rods 291, one side of which is fixedly installed on one side of the tension clamp body 1, and a plurality of slots 292 are provided on one side of the rectangular rods 291; a grooved rod 293, one side of which is fixedly installed on one side of the extrusion plate 21, and the other end of which penetrates through and is installed on one side of the inner wall of the tension clamp body 1; a locking block 295, one end of which is slidably installed in the inner wall of one end of the grooved rod 293, and the other end is inserted into the inner wall of the slot 292, and the longitudinal section of one end of the locking block 295 is trapezoidal; and a second spring 294, the two ends of which are fixedly installed on one side of the locking block 295 and one side of the inner wall of the grooved rod 293, respectively. By setting the fixing mechanism 29, when the extrusion plate 21 moves downward, it can drive the groove rod 293 to slide downward, causing the locking block 295 to move in the same way. Under the reset action of the second spring 294, the locking block 295 will be locked into the slot 292 on the rectangular rod 291. Since the longitudinal section of one end of the locking block 295 is trapezoidal, as the extrusion plate 21 moves, the locking block 295 slides in the groove rod 293 as it is squeezed, until it is locked into the corresponding slot 292, thus fixing and locking the extrusion plate 21. Therefore, the limiting rod 25 can be used to fix and lock the wire.

[0033] Figure 1-5 The fixing mechanism 29 shown also includes several telescopic rods 296, the outer surface of which is inserted into the inner wall of the second spring 294, and both ends are fixedly installed on one side of the locking block 295 and one side of the inner wall of the grooved rod 293, respectively. By setting the telescopic rods 296, the inner wall of the second spring 294 can be supported and reinforced, making it less prone to damage during use and increasing its service life. A reinforcing rod 297 is fixedly installed on one side of the rectangular rod 291, and one side of the reinforcing rod 297 is fixedly installed on one side of the tension clamp body 1. By setting the reinforcing rod 297, the connection area between one side of the rectangular rod 291 and the tension clamp body 1 can be increased, making the connection more firm and stable, and less prone to breakage and damage.

[0034] Working principle: When the tension clamp body 1 is installed on a pole or tower for limiting and fixing the conductor, the tension clamp body 1 is first fixed to the pole or tower with bolts. Then, the conductor is inserted through the inner wall of the tension clamp body 1 into one end of the inner wall, with its outer surface abutting against the compression plate 21. Then, it is pulled and pressed downwards, causing the compression plate 21 to move downwards within the inner wall of the tension clamp body 1, compressing the first spring 22 and causing several abutment rods 23 on one side to slide downwards on one side of the inner wall of the tension clamp body 1. This abuts against and pushes the limiting rod 25 to rotate on the protrusion 24, causing the torsion spring 26 to deform. At this time, after the other end of the limiting rod 25 rotates to a certain angle, it is inserted into the rectangular groove 210 and pressed against the top of the conductor. The conductor is fixed on the extrusion plate 21. After the extrusion plate 21 moves downward to a certain position, it can drive the grooved rod 293 to slide downward, causing the locking block 295 to move in the same way. Under the reset action of the second spring 294, the locking block 295 will be locked into the slot 292 on the rectangular rod 291. Since the longitudinal section of one end of the locking block 295 is trapezoidal, as the extrusion plate 21 moves, the locking block 295 slides in the grooved rod 293 until it is locked into the corresponding slot 292, thus fixing and locking the extrusion plate 21. Therefore, the conductor can be limited in the inner wall of the tension clamp body 1. This operation does not require additional construction tools, and the operation steps are simple and easy to install. It reduces the safety hazards during high-altitude operations, improves the reliability of conductor fixing, and ensures the stability and safety of the power transmission system.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tension clamp, comprising a tension clamp body (1), characterized in that: A limiting device (2) is provided on the inner wall of one end of the tension clamp body (1). The limiting device (2) can insert the wire into the inner wall of the tension clamp body (1) and pull it down to push the extrusion plate (21) downward. The limiting rod (23) pushes the limiting rod (25) to rotate on the protrusion (24) to a certain angle and clamps the wire in the inner wall of the tension clamp body (1). Then, the extrusion plate (21) is fixed and locked after being pressed to a certain position by the fixing mechanism (29).

2. A tension clamp according to claim 1, characterized in that: The limiting device (2) includes a pressing plate (21) and several first springs (22), wherein the two ends of the first springs (22) are respectively fixedly installed on one side of the pressing plate (21) and one side of the inner wall of the tension clamp body (1). Several rectangular grooves (210) are opened on both sides of the inner wall of the tension clamp body (1). Several protrusions (24), one side of which is symmetrically fixed on one side of the tension clamp body (1); Several limiting rods (25), wherein the two ends of the limiting rods (25) are respectively rotatably installed on one side of two opposite protrusions (24), and one end is inserted into the inner wall of the rectangular groove (210); Several torsion springs (26), wherein the outer surface of the torsion springs (26) is inserted into the inner wall of one end of the limiting rod (25), and the two ends are respectively fixedly installed on one side of the protrusion (24) and one side of the inner wall of the limiting rod (25); Several abutting rods (23), one end of which is fixedly installed on one side of the extrusion plate (21), while the other end passes through the inner wall of the tension clamp body (1) and abuts against one side of the limiting rod (25); The fixing mechanism (29) is located between one side of the extrusion plate (21) and one side of the tension clamp body (1) and is used to fix and lock the extrusion plate (21) after the position is adjusted.

3. A tension clamp according to claim 2, characterized in that: The limiting device (2) also includes several rollers (27), wherein the two ends of the rollers (27) are respectively rotatably mounted on the inner wall of the end of the abutment rod (23) near the limiting rod (25).

4. A tension clamp according to claim 2, characterized in that: The limiting device (2) also includes a rubber block (28), one side of which is fixedly installed on the side of the extrusion plate (21) away from the first spring (22).

5. A tension clamp according to claim 2, characterized in that: The fixing mechanism (29) includes two rectangular rods (291), one side of which is fixedly installed on one side of the tension clamp body (1), and a plurality of slots (292) are provided on one side of the rectangular rod (291). The grooved rod (293) has one side fixedly mounted on one side of the extrusion plate (21), while the other end passes through the inner wall of the tension clamp body (1). The locking block (295) has one end slidably installed in the inner wall of one end of the groove rod (293), while the other end is inserted in the inner wall of the slot (292). The longitudinal section of one end of the locking block (295) is trapezoidal. The second spring (294) has its two ends fixedly installed on one side of the locking block (295) and the inner wall of the grooved rod (293), respectively.

6. A tension clamp according to claim 5, characterized in that: The fixing mechanism (29) also includes several telescopic rods (296), wherein the outer surface of the telescopic rods (296) is inserted into the inner wall of the second spring (294), and both ends are fixedly installed on one side of the locking block (295) and one side of the inner wall of the groove rod (293), respectively.

7. A tension clamp according to claim 5, characterized in that: A reinforcing rod (297) is fixedly installed on one side of the rectangular rod (291), and one side of the reinforcing rod (297) is fixedly installed on one side of the tension clamp body (1).

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