A bolt-type aluminum alloy tension clamp for power transmission lines

Abstract

The present invention discloses a bolt-type aluminum alloy tension clamp for power transmission lines, which relates to the technical field of tension clamps, including a clamp body, and also including: a clamp plate, which is arranged in a wire placing groove of the clamp body; a plurality of wire clip bodies, wherein the wire clip body is a U-shaped wire clip, and the outer side of the clamp body is provided with a plurality of pairs of positioning ears with an integral structure therewith, and a plug hole is provided on the outer side of the positioning ears, and each wire clip body is respectively slidably plugged into the plug holes of the plurality of pairs of positioning ears. In the present invention, under a vibration environment, the damping structure absorbs the vibration potential energy and converts it into internal energy, and the damping is used to reduce the vibration amplitude of the special nut, that is, the special nut rotates left and right with a small amplitude under a vibration environment, and because the rotating rod is in a stationary state, the special nut is difficult to rotate, and even if the special nut rotates slightly, the damping structure enables the special nut to have the ability to reset, thereby achieving anti-loosening, and at the same time having the ability to resist vibration.

Description

Technical Field

[0001] The invention relates to the technical field of tension clamps, and in particular to a bolt-type aluminum alloy tension clamp for power transmission lines. Background Art

[0002] Strain clamps refer to hardware used to fix conductors to withstand conductor tension and hang conductors on tension strings or poles. Strain clamps can be roughly divided into two categories according to their structure and installation conditions. The first category: Strain clamps must withstand the full tensile force of the conductor or lightning conductor, and the clamp gripping force must not be less than 90 of the rated tensile force of the installed conductor or lightning conductor, but they do not serve as conductors. This type of clamp can also be removed after the conductor is installed and used separately. This type of clamp includes bolt-type tension clamps and wedge-shaped tension clamps. The second category: In addition to bearing the full tensile force of the conductor or lightning conductor, the tension clamp also serves as a conductor.

[0003] After searching, a Chinese patent with announcement number CN113241701B is a lightweight tension clamp, including a clamp body, a pressure block, a U-shaped screw, a washer, and a nut. The characteristics are: the clamp body is provided with a groove for the wire to pass through along the axial direction, a pressure block is provided in the groove, the U-shaped screw passes through the screw hole of the clamp body, and is fixed by a washer and a nut. The clamp body is made of continuous fiber reinforced polyamide resin.

[0004] The above invention improves the service life of the entire tension clamp by changing the properties of the material, but its clamping method is consistent with the conventional clamping method, that is, the stranded wire is clamped or loosened by the friction force between the wire clamp itself and other matching parts. The above invention belongs to a bolt-type tension clamp, which applies pressure to the stranded wire through a U-shaped wire clamp and a wire clamping plate to increase the friction force and achieve fixation. Since the working environment of the tension clamp is prone to shaking, the bolts are prone to loosening. At this time, the pressure of the wire clamping plate is reduced. Over time, the friction between the wire clamping plate and the bolt type is reduced, resulting in detachment. Summary of the invention

[0005] The object of the present invention is to provide a bolt-type aluminum alloy tension clamp for a power transmission line to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the present invention is: a bolt-type aluminum alloy tension clamp for a power transmission line, comprising a clamp body, and also comprising:

[0007] A clamping plate, which is arranged in the wire placing groove of the wire clamp body;

[0008] A plurality of line card bodies, wherein the line card bodies are U-shaped line cards, a plurality of pairs of positioning ears integrally formed therewith are arranged on the outer side of the line clip body, a plug hole is arranged on the outer side of the positioning ears, each line card body is slidably plugged into the plug holes of the plurality of pairs of positioning ears, and special nuts are arranged at both ends of the line card body, wherein the special nuts include hexagonal nuts, and the hexagonal nuts are mounted on the line card body through internal threads;

[0009] An extrusion structure, wherein the extrusion structure comprises a plurality of pairs of rotating rods and a plurality of pairs of eccentric wheels, each eccentric wheel is fixed on the outside of the plurality of rotating rods, grooves are provided on both sides of the wire release groove of the wire clamp body, a plurality of rotating holes are provided on the top and the bottom of the groove, the two ends of the rotating rod are respectively rotatably mounted in two aligned rotating holes, and the eccentric wheel on the rotating rod is located in the groove;

[0010] Among them, an anti-reversal mechanism is arranged between one end of the rotating rod and the hexagonal nut adjacent to it, and the anti-reversal mechanism includes a first connecting structure, a second connecting structure, a damping structure, a first rotating block and a second rotating block. The first rotating block is rotatably mounted on the outside of the hexagonal nut through the first connecting structure, and the second rotating block is fixedly mounted on the rotating rod through the second connecting structure. The first rotating block and the second rotating block are connected through a damping structure, and the damping structure is used to reduce the vibration amplitude.

[0011] Preferably, the special nut further includes a contact washer, and the contact washer is coaxially arranged with the hexagonal nut and the two are an integral structure.

[0012] Preferably, the first connecting structure includes a positioning body and a first rotating column, the positioning body is made of elastic metal, and the positioning body includes a limit plate, a cylindrical body and two limit protrusions, the limit plate is coaxially arranged with the cylindrical body and is an integral structure, the two limit protrusions are respectively arranged on both sides of one end of the cylindrical body and are an integral structure with the cylindrical body, the outer side of the cylindrical body is provided with a notch, and the notch is located between the two limit protrusions, the six surfaces of the hexagonal nut are provided with inner countersunk grooves, the small hole diameter of the inner countersunk groove is consistent with the outer diameter of the cylindrical body, the cylindrical body is slidably inserted in the small hole of the inner countersunk groove, the first rotating column is slidably sleeved on the cylindrical body, and the first rotating column and the first rotating block form a rotating fit.

[0013] Preferably, a docking groove is provided on the outer side of the cylindrical body, and a guide block having an integral structure with the hexagonal nut is provided on the inner wall of the small hole of the inner countersunk hole groove, and the guide block is slidably inserted in the docking groove.

[0014] Preferably, the second connecting structure includes a spline shaft, a spline sleeve and a second rotating column. The spline shaft is coaxially fixed with the rotating rod, and the spline sleeve is slidingly sleeved on the spline shaft. The second rotating column forms a rotational fit with the second rotating block, and a connecting rod is commonly fixed between the rotating block and the spline sleeve.

[0015] Preferably, the damping structure comprises a damping rod and a spring, the two ends of the damping rod are respectively fixed on the first rotating block and the second rotating block, the spring is sleeved on the damping rod, and the two ends of the spring are respectively fixed on the first rotating block and the second rotating block.

[0016] Preferably, a positioning notch is provided on the top of the clamping plate, and the positioning notch is matched with the line card body.

[0017] Preferably, a circular hole groove coaxially arranged with the socket is provided on the outer side of the positioning ear, a positioning cylinder coaxially arranged with the socket is provided inside the socket, the positioning cylinder and the positioning ear are an integral structure, a rear rubber ring is sleeved on the outer side of the positioning cylinder, a one-way gasket is slidably sleeved on the outer side of the positioning cylinder, a plurality of guide strips integrally arranged with the inner ring wall of the one-way gasket are provided, a plurality of guide grooves are provided on the outer side of the positioning cylinder, the guide strips are slidably arranged in the guide grooves, the one-way gasket includes a gasket and a first ratchet groove arranged on the annular surface of the gasket, and a second ratchet groove is provided on the annular surface of the contact gasket, the second ratchet groove of the contact gasket is meshed with the first ratchet groove of the second gasket.

[0018] Preferably, the bottom of the clamp is inclined, the clamp is provided with a slide groove, the cross section of the slide groove is T-shaped, the interior of the slide groove is slidably arranged on a slide bar, and a pressure block integrally formed with the slide bar is arranged at the bottom of the slide bar.

[0019] The present invention provides a bolt-type aluminum alloy tension clamp for a power transmission line through improvement, which has the following improvements and advantages compared with the prior art:

[0020] First, in the present invention, under a vibration environment, the damping structure absorbs vibration potential energy and converts it into internal energy. Damping is used to reduce the vibration amplitude of the special nut, that is, the special nut rotates left and right with a small amplitude under a vibration environment. Since the rotating rod is in a stationary state, it is difficult for the special nut to rotate. Even if the special nut rotates slightly, the damping structure enables the special nut to have the ability to reset, thereby preventing loosening and having the ability to resist vibration.

[0021] Second: In the present invention, in combination with the attached Figure 4-8First, slide the spline sleeve onto the spline shaft, and then insert the cylinder on the positioning body into one of the inner countersunk holes on the hexagonal nut. During the insertion process, one end of the cylinder is squeezed until it is completely inserted into the small hole of the inner countersunk hole. The cylinder is completely reset, and the limiting protrusion on the cylinder enters the large hole of the inner countersunk hole. At this time, the cylinder cannot be withdrawn. The installation process of the entire damping structure is simple and quick, without the help of tools, reducing the time workers spend working at high altitudes and improving safety.

[0022] Thirdly, in the present invention, in a high vibration environment, the rope or cable will be subjected to traction (after the tension clamp is installed, the rope or cable is always subjected to traction. In a high vibration environment, the rope or cable and the tension clamp will have relative friction). When one end is pulled out from the tension clamp, the eccentric wheel rotates accordingly, and the friction force increases accordingly. The rope or cable is restricted, thereby further fixed. The rotating rod rotates with the eccentric wheel, the damping rod is elongated, and the spring is elongated accordingly. The basic preload force increases, so that the special nut has an increased ability to resist loosening force, thereby further improving the anti-loosening performance, and is used for high-intensity vibration environments.

[0023] Fourthly, the rear rubber ring is used to make the one-way washer fit with the contact washer at all times. At the same time, the rear rubber ring is a buffer rubber used to resist vibration. The second ratchet groove of the contact washer is meshed with the first ratchet groove of the second washer, so that the special nut can only rotate in the direction of the preload force, preventing the special nut from reversing and achieving anti-loosening;

[0024] Fifth, by combining bolt clamping and wedge clamping, the fixing ability is improved. At the same time, when the cable or rope moves outward, the clamp is subjected to an upward force, which is transmitted to the clamp. The clamp makes the line card body tend to move upward, and the degree of squeezing between the special nut and the positioning ear on the line card body increases, and the friction between the special nut and the positioning ear increases. At the same time, the thread fit between the special nut and the line card body increases, further improving the anti-loosening performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the first viewing angle of the embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the second viewing angle of the first embodiment of the present invention;

[0028] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of a special nut and a positioning body according to the first embodiment of the present invention;

[0030] Figure 5 for Figure 4 Schematic diagram of the explosion structure;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of a positioning body according to the first embodiment of the present invention;

[0032] Figure 7 It is a schematic cross-sectional structure diagram of a positioning body according to the first embodiment of the present invention;

[0033] Figure 8 This is a schematic cross-sectional view of a special nut according to Embodiment 1 of the present invention;

[0034] Fig. 9 It is a side view structural schematic diagram of the first embodiment of the present invention;

[0035] Fig.10 AA is a schematic diagram of a partial cross-sectional structure of the first embodiment of the present invention;

[0036] Fig.11 This is a working schematic diagram of Embodiment 1 of the present invention;

[0037] Fig.12 This is a schematic diagram of the three-dimensional structure of the positioning ear and the special nut according to the second embodiment of the present invention;

[0038] Fig.13 This is a schematic diagram of the positioning ear structure of the second embodiment of the present invention;

[0039] Fig.14 This is a schematic diagram of the positioning ear and one-way gasket structure of the second embodiment of the present invention;

[0040] Fig.15 This is a schematic diagram of the internal structure of the positioning ear according to the second embodiment of the present invention;

[0041] Fig.16 This is a schematic diagram of the three-dimensional structure of a special nut according to the second embodiment of the present invention;

[0042] Fig.17 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention;

[0043] Fig.18 This is a schematic diagram of the structure of the clamping plate and the pressing block according to the third embodiment of the present invention;

[0044] Fig.19 It is a cross-sectional schematic diagram of a clamping plate and a pressing block according to the third embodiment of the present invention.

[0045] Reference numerals:

[0046] 1. Wire clamp body; 2. Wire clamp body; 3. Clamp plate; 4. Positioning notch; 5. Positioning ear; 6. Special nut; 7. Groove; 8. Anti-reversal mechanism; 9. Eccentric wheel; 10. Rotating rod; 11. One-way washer; 12. Round hole groove; 13. Positioning cylinder; 14. First ratchet groove; 15. Guide strip; 16. Guide groove; 17. Rear rubber ring; 18. Second ratchet groove; 19. Slide strip; 20. Pressure block; 21. Slide groove; 601. Hexagonal nut; 6 02, contact washer; 603, inner countersunk groove; 604, guide block; 801, positioning body; 802, first rotating block; 803, first rotating column; 804, spring; 805, damping rod; 806, second rotating block; 807, spline shaft; 808, spline sleeve; 809, second rotating column; 810, connecting rod; 811, limit plate; 812, cylinder; 813, notch; 814, limit protrusion; 815, docking groove.

[0047] a. Cable / twisted rope. DETAILED DESCRIPTION

[0048] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] The present invention provides a bolt-type aluminum alloy tension clamp for a power transmission line through improvement. The technical solution of the present invention is:

[0050] like Figures 1 to 19 As shown, the first embodiment of the present invention provides a bolt-type aluminum alloy tension clamp for a transmission line, including a clamp body 1. The clamp body 1 is a prior art metal casting, and its specific material and appearance structure are not described in detail here. It also includes:

[0051] The clamping plate 3 is arranged in the wire laying groove of the wire clamp body 1, the twisted rope or cable is placed in the wire laying groove, and the clamping plate 3 is covered on the twisted rope or cable;

[0052] Multiple line card bodies 2, the line card bodies 2 are U-shaped line cards, multiple pairs of positioning ears 5 with an integral structure are arranged on the outer side of the line clip body 1, and plug holes are arranged on the outer side of the positioning ears 5. Each line card body 2 is slidably plugged into the plug holes of the multiple pairs of positioning ears 5, and special nuts 6 are arranged at both ends of the line card body 2, wherein the special nuts 6 include hexagonal nuts 601, and the hexagonal nuts 601 are installed on the line card body 2 through internal threads;

[0053] It can be known from the above connection relationship that the line card body 2 is buckled on the line clamp body 1, and the two ends of the line card body 2 pass through the insertion holes of the positioning ears 5, and the two hexagonal nuts 601 are respectively installed on the two ends of the line card body 2 through threads, and the hexagonal nuts 601 are in contact with the positioning ears 5. The hexagonal nuts 601 are twisted by a wrench, and the hexagonal nuts 601 move the line card body 2 downward through the thread transmission form, and the line card body 2 squeezes the clamping plate 3, and the clamping plate 3 squeezes the twisted rope or cable;

[0054] Extrusion structure, the extrusion structure includes multiple pairs of rotating rods 10 and multiple pairs of eccentric wheels 9, each eccentric wheel 9 is fixed on the outside of multiple rotating rods 10, grooves 7 are opened on both sides of the wire release groove of the wire clamp body 1, and multiple rotating holes are opened on the top and bottom of the groove 7. The two ends of the rotating rod 10 are respectively rotatably installed in two aligned rotating holes, and the eccentric wheel 9 on the rotating rod 10 is located in the groove 7;

[0055] It can be known from the above connection relationship that the rope or cable is placed in the wire laying groove, and the eccentric wheel 9 is in contact with the rope or cable, and then the rope or cable is pulled, the eccentric wheel 9 rotates, and the rotating rod 10 on the eccentric wheel 9 rotates accordingly, and the eccentric wheels 9 on both sides of the rope or cable squeeze the cable itself, thereby completing the pre-fixation;

[0056] Among them, an anti-reversal mechanism 8 is arranged between one end of the rotating rod 10 and the hexagonal nut 601 adjacent thereto, and the anti-reversal mechanism 8 includes a first connecting structure, a second connecting structure, a damping structure, a first rotating block 802 and a second rotating block 806. The first rotating block 802 is rotatably mounted on the outside of the hexagonal nut 601 through the first connecting structure, and the second rotating block 806 is fixedly mounted on the rotating rod 10 through the second connecting structure. The first rotating block 802 and the second rotating block 806 are connected through a damping structure, and the damping structure is used to reduce the vibration amplitude;

[0057] Fig.11 In the figure, F1 is the direction of the preload force, F2 is the loosening force caused by vibration, and F3 is the tension.

[0058] In the present invention, combined with the Fig.11 In a vibration environment, the damping structure absorbs vibration potential energy and converts it into internal energy. Damping is used to reduce the vibration amplitude of the special nut 6, that is, the special nut 6 rotates left and right with a small amplitude in a vibration environment. Since the rotating rod 10 is in a stationary state, it is difficult for the special nut 6 to rotate. Even if the special nut 6 rotates slightly, the damping structure enables the special nut 6 to have the ability to reset, thereby preventing loosening and having the ability to resist vibration.

[0059] Specifically, the special nut 6 further includes a contact washer 602, which is coaxially arranged with the hexagonal nut 601 and the two are an integral structure;

[0060] In the present invention, the contact washer 602 is used to increase the friction between the hexagonal nut 601 and the positioning ear 5 .

[0061] Specifically, the first connecting structure includes a positioning body 801 and a first rotating column 803. The positioning body 801 is made of elastic metal, and the positioning body 801 includes a limiting plate 811, a cylindrical body 812 and two limiting protrusions 814. The limiting plate 811 is coaxially arranged with the cylindrical body 812 and is an integral structure. The two limiting protrusions 814 are respectively arranged on both sides of one end of the cylindrical body 812 and are an integral structure with the cylindrical body 812. A notch 813 is provided on the outer side of the cylindrical body 812, and the notch 813 is located between the two limiting protrusions 814. The six surfaces of the hexagonal nut 601 are provided with inner countersunk grooves 603. The diameter of the small hole of the inner countersunk groove 603 is consistent with the outer diameter of the cylindrical body 812. The cylindrical body 812 is slidably inserted in the small hole of the inner countersunk groove 603. The first rotating column 803 is slidably sleeved on the cylindrical body 812, and the first rotating column 803 forms a rotating fit with the first rotating block 802 , a docking groove 815 is provided on the outer side of the cylindrical body 812, and a guide block 604 with an integral structure with the hexagonal nut 601 is provided on the inner wall of the small hole of the inner countersunk hole groove 603, and the guide block 604 is slidably inserted in the docking groove 815. It is supplemented here that the guide block 604 and the docking groove 815 are provided to prevent the positioning body 801 from rotating. When the positioning body 801 applies a force to the hexagonal nut 601, the cylindrical body 812 of the positioning body 801 will not be squeezed and deformed, thereby preventing the cylindrical body 812 from falling out of the inner countersunk hole groove 603; the second connecting structure includes a spline shaft 807, a spline sleeve 808 and a second rotating column 809, the spline shaft 807 is coaxially fixed with the rotating rod 10, and the spline sleeve 808 is slidably sleeved on the spline shaft 807, the second rotating column 809 and the second rotating block 806 form a rotational fit, and a connecting rod 810 is fixed between the rotating block and the spline sleeve 808;

[0062] In the present invention, combined with the Figure 4-8 First, slide the spline sleeve 808 onto the spline shaft 807, and then insert the cylindrical body 812 on the positioning body 801 into one of the inner countersunk hole grooves 603 on the hexagonal nut 601. During the insertion process, one end of the cylindrical body 812 is squeezed until it is completely inserted into the small hole of the inner countersunk hole groove 603. The cylindrical body 812 is completely reset, and the limiting protrusion 814 on the cylindrical body 812 enters the large hole of the inner countersunk hole groove 603. At this time, the cylindrical body 812 cannot be withdrawn. The entire damping structure installation process is simple and quick, without the aid of tools, reducing the time workers spend working at heights and improving safety.

[0063] Specifically, the damping structure includes a damping rod 805 and a spring 804, the two ends of the damping rod 805 are respectively fixed on the first rotating block 802 and the second rotating block 806, the spring 804 is sleeved on the damping rod 805, and the two ends of the spring 804 are respectively fixed on the first rotating block 802 and the second rotating block 806;

[0064] In the present invention, Fig.11 In a high vibration environment, the rope or cable will be subjected to traction (after the tension clamp is installed, the rope or cable is always subjected to traction. In a high vibration environment, the rope or cable and the tension clamp will have relative friction). When one end is pulled out from the tension clamp, the eccentric wheel 9 rotates accordingly, and the friction force increases accordingly. The rope or cable is restricted and thus further fixed. The rotating rod 10 rotates with the eccentric wheel 9, and the damping rod 805 is elongated, and the spring 804 is elongated accordingly. The tension F3 of the spring 804 on the special nut 6 increases, and the basic preload F1 increases, so that the special nut 6 has an increased ability to resist the loosening force F2, thereby further improving the anti-loosening performance, which is used for high-intensity vibration environments.

[0065] Specifically, a positioning notch 4 is provided on the top of the clamping plate 3, and the positioning notch 4 is adapted to the line card body 2;

[0066] In the present invention, the positioning notch 4 is provided to prevent the line card body 2 from sliding.

[0067] Working principle: Place the rope or cable in the cable slot, and the eccentric wheel 9 contacts the rope or cable, then pull the rope or cable, the eccentric wheel 9 rotates, and the rotating rod 10 on the eccentric wheel 9 rotates accordingly, and the eccentric wheels 9 on both sides of the rope or cable squeeze the cable itself, thereby completing the pre-fixation, cover the clamp plate 3 on the rope or cable, buckle the wire clamp body 2 on the wire clamp body 1, and the two ends of the wire clamp body 2 pass through the jacks of the positioning ears 5, and put the two hexagonal nuts 601 The two ends of the line card body 2 are respectively installed by threads, and the hexagonal nut 601 is in contact with the positioning ear 5. The hexagonal nut 601 is twisted by a wrench, and the hexagonal nut 601 moves the line card body 2 downward through the thread transmission form. The line card body 2 squeezes the clamping plate 3, and the clamping plate 3 squeezes the twisted rope or cable. After fixing, the spline sleeve 808 is first slidably sleeved on the spline shaft 807, and then the cylindrical body 812 on the positioning body 801 is inserted into one of the inner sinkers on the hexagonal nut 601. During the insertion of the hole groove 603, one end of the cylinder 812 is squeezed until it is completely inserted into the small hole of the inner countersunk hole groove 603, and the cylinder 812 is completely reset. The limiting protrusion 814 on the cylinder 812 enters the large hole of the inner countersunk hole groove 603, and the cylinder 812 cannot be pulled out at this time; in a high vibration environment, the twisted rope or cable will be subjected to traction (after the tension clamp is installed, the twisted rope or cable is always subjected to traction. In a high vibration environment, the twisted rope or cable and the tension clamp will have relative friction). When one end is pulled out from the tension clamp, the eccentric wheel 9 rotates accordingly, and the friction force increases accordingly. The twisted rope or cable is restricted, thereby further fixed, and the rotating rod 10 rotates with the eccentric wheel 9, the damping rod 805 is stretched, and the spring 804 is stretched accordingly. The tension F3 of the spring 804 on the special nut 6 increases, and the basic preload F1 increases, so that the special nut 6 has the ability to resist the loosening force F2, thereby further improving the anti-loosening performance, which is used for high-intensity vibration environments.

[0068] The second implementation method:

[0069] The present embodiment adds the following structure on the basis of the first embodiment, and the specific configuration is as follows: a circular hole groove 12 coaxially arranged with the insertion hole is provided on the outer side of the positioning ear 5, a positioning cylinder 13 coaxially arranged with the insertion hole is provided inside the insertion hole, the positioning cylinder 13 and the positioning ear 5 are an integral structure, a rear rubber ring 17 is sleeved on the outer side of the positioning cylinder 13, the rear rubber ring 17 is a buffer rubber, a one-way gasket 11 is slidably sleeved on the outer side of the positioning cylinder 13, a plurality of guide strips 15 integrally arranged with the one-way gasket 11 are provided on the inner ring wall, a plurality of guide grooves 16 are provided on the outer side of the positioning cylinder 13, the guide strips 15 are slidably arranged in the guide grooves 16, the one-way gasket 11 includes a gasket and a first ratchet groove 14 arranged on the annular surface of the gasket, and a second ratchet groove 18 is provided on the annular surface of the contact gasket 602, the second ratchet groove 18 of the contact gasket 602 is meshed with the first ratchet groove 14 of the second gasket.

[0070] Working principle: The rear rubber ring 17 is used to make the one-way washer 11 fit with the contact washer 602 at all times. At the same time, the rear rubber ring 17 is a buffer rubber for resisting vibration. The second ratchet groove 18 of the contact washer 602 is meshed with the first ratchet groove 14 of the second washer, so that the special nut 6 can only rotate in the direction of the preload force, preventing the special nut 6 from reversing and achieving anti-loosening.

[0071] The third implementation method:

[0072] This embodiment adds the following structure on the basis of the first embodiment, and the specific configuration is as follows:

[0073] Specifically, the bottom of the clamping plate 3 is inclined, and a slide groove 21 is provided on the clamping plate 3. The cross section of the slide groove 21 is T-shaped. The inside of the slide groove 21 is slidably arranged on the slide bar 19. The bottom of the slide bar 19 is provided with a pressing block 20 integrally formed therewith.

[0074] Working principle: Install in the manner of Example 1, so that the bolt clamping method and the wedge clamping method are combined with each other to improve the fixing ability. At the same time, when the cable or rope moves outward, the clamping plate 3 is subjected to an upward force, and the force is transmitted to the clamping plate 3. The clamping plate 3 makes the line card body 2 have an upward movement trend, and the degree of squeezing between the special nut 6 and the positioning ear 5 on the line card body 2 increases, and the friction between the special nut 6 and the positioning ear 5 increases. At the same time, the thread fit between the special nut 6 and the line card body 2 increases, and the anti-loosening performance is further improved.

[0075] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bolt-type aluminum alloy tension clamp for a power transmission line, comprising a clamp body (1), characterized in that: Also includes: A clamping plate (3), wherein the clamping plate (3) is arranged in a wire placing groove of the wire clamp body (1); A plurality of line card bodies (2), wherein the line card bodies (2) are U-shaped line cards, a plurality of pairs of positioning ears (5) integrally formed with the line card body (1) are arranged on the outer side of the line card body (1), a plug hole is provided on the outer side of the positioning ears (5), each line card body (2) is slidably plugged into the plug hole of the plurality of pairs of positioning ears (5), and special nuts (6) are arranged at both ends of the line card body (2), wherein the special nuts (6) include hexagonal nuts (601), and the hexagonal nuts (601) are mounted on the line card body (2) via internal threads; An extrusion structure, the extrusion structure comprising a plurality of pairs of rotating rods (10) and a plurality of pairs of eccentric wheels (9), each eccentric wheel (9) being fixed on the outside of the plurality of rotating rods (10), grooves (7) being provided on both sides of the wire release groove of the wire clamp body (1), a plurality of rotating holes being provided on the top and bottom of the groove (7), the two ends of the rotating rod (10) being rotatably mounted in two aligned rotating holes, and the eccentric wheel (9) on the rotating rod (10) being located in the groove (7); An anti-reversal mechanism (8) is provided between one end of the rotating rod (10) and the hexagonal nut (601) adjacent thereto, the anti-reversal mechanism (8) comprising a first connection structure, a second connection structure, a damping structure, a first rotating block (802) and a second rotating block (806), the first rotating block (802) being rotatably mounted on the outside of the hexagonal nut (601) via the first connection structure, the second rotating block (806) being fixedly mounted on the rotating rod (10) via the second connection structure, the first rotating block (802) and the second rotating block (806) being connected via the damping structure, and the damping structure being used to reduce the vibration amplitude; The first connection structure comprises a positioning body (801) and a first rotating column (803); the positioning body (801) is made of elastic metal, and the positioning body (801) comprises a limiting plate (811), a cylindrical body (812) and two limiting protrusions (814); the limiting plate (811) and the cylindrical body (812) are coaxially arranged and are an integral structure; the two limiting protrusions (814) are respectively arranged on both sides of one end of the cylindrical body (812) and are an integral structure with the cylindrical body (812); the cylindrical body (812) A notch (813) is provided on the outer side, and the notch (813) is located between the two limiting protrusions (814); six surfaces of the hexagonal nut (601) are provided with inner countersunk hole grooves (603); the diameter of the small hole of the inner countersunk hole groove (603) is consistent with the outer diameter of the cylindrical body (812); the cylindrical body (812) is slidably inserted into the small hole of the inner countersunk hole groove (603); the first rotating column (803) is slidably sleeved on the cylindrical body (812); the first rotating column (803) and the first rotating block (802) form a rotating fit; The second connection structure comprises a spline shaft (807), a spline sleeve (808) and a second rotating column (809); the spline shaft (807) is coaxially fixed with the rotating rod (10), and the spline sleeve (808) is slidably sleeved on the spline shaft (807); the second rotating column (809) and the second rotating block (806) are rotationally matched, and a connecting rod (810) is fixed between the rotating block and the spline sleeve (808); The damping structure comprises a damping rod (805) and a spring (804), wherein two ends of the damping rod (805) are respectively fixed on the first rotating block (802) and the second rotating block (806), and the spring (804) is sleeved on the damping rod (805), and two ends of the spring (804) are respectively fixed on the first rotating block (802) and the second rotating block (806).

2. The bolt-type aluminum alloy tension clamp for power transmission lines according to claim 1, characterized in that: The special nut (6) further comprises a contact washer (602), wherein the contact washer (602) and the hexagonal nut (601) are coaxially arranged and the two are an integral structure.

3. The bolt-type aluminum alloy tension clamp for power transmission lines according to claim 1, characterized in that: A docking groove (815) is provided on the outer side of the cylindrical body (812), and a guide block (604) having an integral structure with the hexagonal nut (601) is provided on the inner wall of the small hole of the inner countersunk hole groove (603), and the guide block (604) is slidably inserted in the docking groove (815).

4. The bolt-type aluminum alloy tension clamp for power transmission lines according to claim 1, characterized in that: A positioning notch (4) is provided on the top of the clamping plate (3), and the positioning notch (4) is adapted to fit the line card body (2).

5. The bolt-type aluminum alloy tension clamp for power transmission lines according to claim 4, characterized in that: The outer side of the positioning ear (5) is provided with a circular hole groove (12) coaxially arranged with the insertion hole, and the inside of the insertion hole is provided with a positioning tube (13) coaxially arranged with the insertion hole. The positioning tube (13) and the positioning ear (5) are an integral structure. The outer side of the positioning tube (13) is sleeved with a rear rubber ring (17). The outer side of the positioning tube (13) is slidably sleeved with a one-way gasket (11). The inner ring wall of the one-way gasket (11) is provided with a plurality of guide strips (15) integrally arranged with the one-way gasket (11). The outer side of the positioning tube (13) is provided with a plurality of guide grooves (16), and the guide strips (15) are slidably arranged in the guide grooves (16). The one-way gasket (11) includes a gasket and a first ratchet groove (14) arranged on the annular surface of the gasket, and the annular surface of the contact gasket (602) is provided with a second ratchet groove (18), and the second ratchet groove (18) of the contact gasket (602) is meshed with the first ratchet groove (14) of the second gasket.

6. The bolt-type aluminum alloy tension clamp for power transmission lines according to claim 1, characterized in that: The bottom of the clamping plate (3) is inclined, and the clamping plate (3) is provided with a slide groove (21). The cross section of the slide groove (21) is T-shaped. The interior of the slide groove (21) is slidably arranged on the slide bar (19), and the bottom of the slide bar (19) is provided with a pressing block (20) which is an integral structure therewith.

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