A small-section, high-strength forged aluminum flexible adjustable-distance wire clamp

Abstract

This invention provides a small-section, high-strength, forged aluminum, flexible, adjustable-distance cable clamp that solves the problem of buffering between the clamp and the cable. The clamp comprises a pull rod, mounted on which are fixed and movable clamps that are axially limited and circumferentially rotatable. The movable clamp is equipped with a ball-and-socket rotation mechanism, and a buffer mechanism is provided between the fixed and movable clamps and the pull rod. This invention offers advantages such as structural stability and vibration damping.

Description

Technical Field

[0001] The invention belongs to the field of power auxiliary equipment, and in particular relates to a small-section high-strength forged aluminum type flexible adjustable-distance wire clamp. Background Art

[0002] High-voltage cable clamps are hardware used to secure and connect high-voltage cables. They secure high-voltage cables to towers, brackets, or other supporting structures, preventing them from moving or shaking due to external forces, thereby ensuring the stability and safety of power transmission. They also withstand the tension of high-voltage cables, especially in transmission lines spanning rivers, valleys, or other long distances. Clamps must possess sufficient strength to ensure the safe suspension of cables. However, in actual use, existing clamps are difficult to adjust and cannot achieve relative fixation of cables at different distances. Furthermore, when subjected to external forces, existing power fixtures cannot provide a buffering effect against the cables, resulting in excessive localized shaking that can damage the cables.

[0003] In order to address the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a forged aluminum alloy suspension wire clamp with application number 202021861434.8, which includes an upper hanging rod, the lower part of which is bolted to the lower hanging rod, and the lower part of the upper hanging rod and the upper part of the lower hanging rod are both provided with through holes. The lower part of the upper hanging rod and the upper part of the lower hanging rod are movably connected to the hanging rod fixing bolt, one end of the hanging rod fixing bolt is movably connected to the hanging rod nut, and one side of the upper hanging rod is bolted to the wire clamp bracket. The forged aluminum alloy suspension wire clamp is set by the cooperation of the upper hanging rod and the locking pin.

[0004] The above solution solves the problem of flexibility in adjusting the distance of the wire clamp to a certain extent, but the solution still has many shortcomings, such as the inability to achieve buffering between the wire clamp and the cable. Summary of the Invention

[0005] The object of the present invention is to provide a small-section, high-strength forged aluminum flexible adjustable-distance wire clamp with a reasonable design and good buffering effect in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a small-section, high-strength forged aluminum flexible adjustable distance wire clamp, comprising a pull rod, on which are installed a fixed clamp and a movable clamp that are axially limited and circumferentially rotated, the movable clamp is equipped with a ball and socket rotation mechanism, and a buffer mechanism is arranged between the fixed clamp and the movable clamp and the pull rod.

[0007] In the above-mentioned small-section high-strength forged aluminum flexible adjustable distance wire clamp, a mounting base corresponding to the fixed clamp and the movable clamp is installed on the pull rod, and a quick-release assembly is provided between the mounting base and the fixed clamp and the movable clamp.

[0008] In the above-mentioned small-section high-strength forged aluminum flexible adjustable-distance wire clamp, the mounting base is cylindrical, and a plurality of locking rods are slidably mounted in the mounting base and arranged symmetrically with respect to the central axis of the mounting base. Locking teeth opposite to the locking rods are movably mounted on the inner side of the mounting base. The locking teeth are provided with mutually fitting locking inclined surfaces on the side opposite to the locking rods. The locking inclined surfaces convert the axial thrust of the locking rod into the radial thrust of the locking teeth. A locking opening for inserting the locking teeth is provided on the pull rod. A locking nut is threadedly installed at the end of the mounting base, and the locking nut is pressed against the locking rod; the quick-release assembly includes a quick-release hole arranged at the end of the fixed clamp and the movable clamp and for the mounting base to be inserted, and a quick-release tooth opposite to the locking rod is movably installed on the outer side of the middle part of the mounting base, and a quick-release inclined surface that fits each other is provided on the side opposite to the quick-release tooth and the locking rod. The quick-release inclined surface converts the axial thrust of the locking rod into the radial thrust of the quick-release tooth, and a quick-release opening for the quick-release tooth to be inserted is opened on the inner side of the quick-release hole.

[0009] In the above-mentioned small-section high-strength forged aluminum flexible adjustable distance wire clamp, the buffer mechanism includes a buffer sleeve arranged inside the quick-release hole, and an adaptive damping component is arranged between the fixed clamp, the movable clamp and the buffer sleeve.

[0010] In the above-mentioned small-section high-strength forged aluminum flexible adjustable distance wire clamp, the adaptive damping component includes a damping cavity arranged at the end of the fixed clamp and the movable clamp, and the buffer sleeve is connected to a buffer ring with a circular ring shape and a C-shaped cross-section. The outer side of the buffer ring fits into the inner side of the damping cavity, and a pair of conical coil springs are installed between the buffer ring and the buffer sleeve. One end of the conical coil spring is fixedly connected to the buffer ring and the buffer sleeve and the other end is fixedly connected to the damping cavity. The spiral directions of the conical coil springs are opposite.

[0011] In the above-mentioned small-section high-strength forged aluminum flexible adjustable wire clamp, the fixed clamp and the movable clamp respectively have a main clamp and a sub-clamp hinged to the main clamp, and a relative wire clamping groove is provided between the main clamp and the sub-clamp. A clamping bolt that is hinged at the end of the sub-clamp and is plugged into the end of the main clamp is threadedly connected to a clamping nut that fits and presses against the main clamp.

[0012] In the above-mentioned small-section high-strength forged aluminum flexible adjustable distance wire clamp, the ball and socket rotation mechanism includes a rotating seat arranged in the middle of the movable clamp, and closed covers are fixed on both sides of the rotating seat by screws. A rotating cavity is left between the rotating seat and the inside of the closed cover. The rotating seat and the upper end of the closed cover are provided with a rotating opening for inserting the main clamp. The main clamp of the movable clamp is connected to a rotating ball movably installed in the rotating cavity, and a viscous damping component is arranged between the closed cover and the rotating seat and the rotating ball.

[0013] In the above-mentioned small-section high-strength forged aluminum flexible adjustable distance wire clamp, the viscous damping component includes a damping groove arranged at the bottom of the rotating seat, the bottom of the damping groove is arc-shaped, and the rotating ball has a damping block extending into the damping groove and fitting with its bottom. Damping push strips arranged in a centrally symmetrical manner are installed on the inside of the damping groove. One end of the damping push strip is pressed against the damping block and the other end is opposite to the fluid cavity hidden in the rotating seat and the closing cover. The fluid cavities are interconnected through viscous flow channels and are filled with damping medium.

[0014] In the above-mentioned small-section high-strength forged aluminum flexible adjustable-distance wire clamp, pin holes are respectively opened at both ends of the pull rod, and pins corresponding to the fixed clamp and the movable clamp are inserted into the pin holes.

[0015] In the above-mentioned small-section high-strength forged aluminum type flexible adjustable distance wire clamp, the pull rod is made of casting material, and the fixed clamp and the movable clamp are made of forged aluminum alloy.

[0016] Compared with the existing technology, the advantages of the present invention are: the ball and socket rotation mechanism and the buffer mechanism ensure that the clamp and the pull rod have a certain amount of movable margin, which can play a buffering and vibration reduction role when receiving external impact, and has a better protective effect on the cable; the clamp can flexibly adjust the relative position with the pull rod, and then adjust the relative distance between the fixed clamp and the movable clamp to adapt to the fixing of cables with different spacings; the ball and socket rotation mechanism is equipped with a viscous damping component, so that the buffering damping can be adjusted in real time according to the impact amplitude when the movable clamp is universally flipped. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 is a partial cross-sectional view of the present invention;

[0019] Figure 3 is a partial cross-sectional view of the present invention;

[0020] Figure 4 is another partial cross-sectional view of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the main chuck of the present invention;

[0022] Figure 6 is a structural sectional view of the ball and socket rotating mechanism of the present invention;

[0023] In the figure, there are pull rod 1, pin hole 11, latch pin 12, fixed clamp 2, main chuck 21, auxiliary chuck 22, wire clamping groove 23, clamping bolt 24, clamping nut 25, movable clamp 3, ball and socket rotating mechanism 4, rotating seat 41, closing cover 42, rotating chamber 43, rotating mouth 44, rotating ball 45, buffer mechanism 5, buffer sleeve 51, damping chamber 52, buffer ring 53, conical coil spring 54, mounting base 6, locking rod 61, locking teeth 62, locking bevel 63, locking mouth 64, locking nut 65, quick release hole 66, quick release teeth 67, quick release bevel 68, quick release mouth 69, viscous damping assembly 7, damping groove 71, damping block 72, damping push strip 73, fluid chamber 74, and viscous flow channel 75. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-6 As shown, a small-section, high-strength forged aluminum flexible adjustable-distance wire clamp includes a pull rod 1, on which are mounted a fixed clamp 2 and a movable clamp 3 that are axially limited and circumferentially rotatable. The fixed clamp 2 and the movable clamp 3 respectively clamp the cable and fix it, while adjusting their relative positions with the pull rod 1 to ensure that the cable is not subject to additional pulling force. Due to external impact, the cable shakes. In order to achieve buffering and vibration reduction, the movable clamp 3 is equipped with a ball-and-socket rotating mechanism 4. The ball-and-socket rotating mechanism 4 allows the movable clamp 3 to have a certain amount of movable margin relative to the pull rod 1, adapting to impact forces in different directions and cables in different installation positions. A buffer mechanism 5 is provided between the fixed clamp 2 and the movable clamp 3 and the pull rod 1. The buffer mechanism 5 cooperates with the above-mentioned ball-and-socket rotating mechanism 4 to achieve double vibration reduction and buffering.

[0026] Specifically, the pull rod 1 is equipped with a mounting base 6 corresponding to the fixed clamp 2 and the movable clamp 3 respectively. A quick-release assembly is provided between the mounting base 6 and the fixed clamp 2 and the movable clamp 3. The operator can manually complete the assembly and separation of the mounting base 6 and the pull rod 1. The same pull rod 1 can be equipped with multiple fixed clamps 2 or movable clamps 3 according to the number of cables.

[0027] In depth, the mounting base 6 is cylindrical and its central axis coincides with the pull rod 1. Several locking rods 61 are slidably installed in the mounting base 6 and are arranged in a centrally symmetrical manner relative to the central axis of the mounting base 6. Locking teeth 62 are movably installed on the inner side of the mounting base 6, opposite to the locking rod 61. The locking teeth 62 are provided with a locking bevel 63 that fits together on the side opposite to the locking rod 61. The locking bevel 63 converts the axial thrust of the locking rod 61 into the radial thrust of the locking teeth 62. The pull rod 1 is provided with a locking opening 64 for the locking teeth 62 to be inserted. A locking nut 65 is threadedly installed at the end of the mounting base 6, and the locking nut 65 presses against the locking rod 61. When the mounting base 6 slides along the pull rod 1 to a specified axial position, the locking nut 65 is rotated to push the locking rod 61 to slide. The locking bevel 63 guides the locking teeth 62 to slide toward the central axis and plug into the locking opening 64 on the pull rod 1, thereby achieving axial and circumferential limitation.

[0028] The quick-release assembly, similar to the aforementioned locking structure, also includes quick-release holes 66 at the ends of the fixed clamp 2 and the movable clamp 3 for insertion into the mounting base 6. A quick-release tooth 67 is movably mounted on the outer side of the central portion of the mounting base 6, facing the locking rod 61. A quick-release ramp 68 is provided on the side of the quick-release tooth 67 opposite the locking rod 61, which engages with the quick-release tooth 67. The ramp 68 converts the axial thrust of the locking rod 61 into the radial thrust of the quick-release tooth 67. A quick-release opening 69 is defined within the quick-release hole 66 for insertion of the quick-release tooth 67. When the mounting base 6 is axially and circumferentially limited, the quick-release tooth 67, guided by the ramp 68, engages with the quick-release opening 69.

[0029] Furthermore, the buffer mechanism 5 includes a buffer sleeve 51 disposed inside the quick-release hole 66, with an adaptive damping assembly disposed between the fixed clamp 2, the movable clamp 3, and the buffer sleeve 51. The adaptive damping assembly ensures a certain degree of deflection flexibility in the buffer sleeve 51 of the buffer mechanism 5, thereby achieving a non-rigid connection between the fixed clamp 2, the movable clamp 3, and the mounting base 6, effectively absorbing slight vibrations and deflections.

[0030] Furthermore, the adaptive damping assembly is hidden at the ends of the fixed clamp 2 and the movable clamp 3, and specifically includes a damping chamber 52 provided at the ends of the fixed clamp 2 and the movable clamp 3. The buffer sleeve 51 is connected to a buffer ring 53 with a circular ring shape and a C-shaped cross-section. The outer side of the buffer ring 53 fits the inner side of the damping chamber 52. A pair of conical coil springs 54 are installed between the buffer ring 53 and the buffer sleeve 51. One end of the conical coil spring 54 is fixedly connected to the buffer ring 53 and the buffer sleeve 51, and the other end is fixedly connected to the damping chamber 52. The spiral directions of the conical coil springs 54 are opposite. The conical coil springs 54 are arranged in pairs so that the buffer sleeve 51 and the buffer ring 53 maintain dynamic balance. In the normal state, they are in the center position and can automatically reset after deformation and deviation. The conical coil springs 54 can also withstand torsional force. When the fixed clamp 2 or the movable clamp 3 is circumferentially rotated and deviated relative to the pull rod 1, the conical coil springs 54 can provide a circumferential reset force to drive them to automatically reset.

[0031] In addition, similar to existing cable clamp structures, the fixed clamp 2 and movable clamp 3 in this embodiment each have a main clamp 21 and a secondary clamp 22 hingedly connected to the main clamp 21. Opposing wire clamping grooves 23 are provided between the main clamp 21 and the secondary clamp 22. A clamping bolt 24 is hingedly connected to the end of the secondary clamp 22 and plugs into the end of the main clamp 21. The clamping bolt 24 is threadedly connected to a clamping nut 25 that fits against the main clamp 21 and presses against it. The main clamp 21 and the secondary clamp 22 open and close to clamp the cable. The clamping bolt 24 adjusts their opening and closing angles to ensure clamping stability. The insides of the main clamp 21 and the secondary clamp 22 are also covered with an insulating layer.

[0032] At the same time, to facilitate the assembly and molding of the movable clamp 3, the ball-and-socket rotating mechanism 4 includes a rotating seat 41 disposed in the middle of the movable clamp 3. A closed cover 42 is fixed to each side of the rotating seat 41 via screws. A rotating cavity 43 is defined between the rotating seat 41 and the closed cover 42. A rotating opening 44 is defined at the upper ends of the rotating seat 41 and the closed cover 42 for inserting the main clamp 21. The rotating opening 44 limits the range of motion of the movable clamp 3. The main clamp 21 of the movable clamp 3 is connected to a rotating ball 45 movably mounted within the rotating cavity 43. A viscous damping assembly 7 is disposed between the closed cover 42, the rotating seat 41, and the rotating ball 45. The rotating ball 45 is in contact with the interior of the rotating cavity 43. The damping force provided by the viscous damping assembly 7 is proportional to the swing rate of the rotating ball 45 and the movable clamp 3.

[0033] As can be seen, unlike existing damping structures, the viscous damping assembly 7 in this embodiment is suitable for ball-and-socket joints. Specifically, the viscous damping assembly 7 includes a damping groove 71 disposed at the bottom of the rotating seat 41. The bottom of the damping groove 71 is arc-shaped. The rotating ball 45 includes a damping block 72 extending into the damping groove 71 and abutting against its bottom. The motion range of the damping block 72 is consistent with the deflection range of the movable clamp 3. A centrally symmetrical damping push bar 73 is mounted inside the damping groove 71. One end of the damping push bar 73 presses against the damping block 72, and the other end faces a fluid chamber 74 hidden within the rotating seat 41 and the sealing cover 42. The fluid chambers 74 are interconnected via a viscous flow channel 75 and are filled with a damping medium. When the movable clamp 3 receives an external impact and the ball-and-socket rotating mechanism 4 moves, the damping block 72 moves and pushes the damping push bar 73. The damping medium in the fluid chamber 74 squeezes and flows, absorbing the impact force under the action of shear force. This shear force is proportional to the angular velocity of the movable clamp 3 during the deflection. When the movable clamp 3 slowly deflects to adjust the cable orientation, the damping medium flow rate in the viscous flow channel 75 is low, and its damping force is also at a low level. The fluid chamber 74 is typically also provided with an elastic reset element to achieve automatic reset of the viscous damping assembly 7.

[0034] Obviously, pin holes 11 are respectively opened at both ends of the pull rod 1, and pins 12 are inserted into the pin holes 11, which are opposite to the fixed clamp 2 and the movable clamp 3. The pins 12 limit the axial position of the mounting base 6 to prevent the mounting base 6 from accidentally falling off.

[0035] Preferably, the pull rod 1 is made of a casting material to meet the molding requirements of the locking opening 64 on its surface, and the fixed clamp 2 and the movable clamp 3 are made of a forged aluminum alloy to ensure their overall service life and structural strength.

[0036] To sum up, the principle of this embodiment is that a fixed clamp 2 and a movable clamp 3 are installed on the pull rod 1 to clamp the cable, wherein the ball and socket rotation mechanism 4 maintains the movable margin of the movable clamp 3, and the buffer mechanism 5 further provides damping and buffering for the fixed clamp 2 and the movable clamp 3.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0038] Although this article uses more terms such as pull rod 1, pin hole 11, pin 12, fixing clamp 2, main chuck 21, auxiliary chuck 22, wire clamping groove 23, clamping bolt 24, clamping nut 25, movable clamp 3, ball and socket rotating mechanism 4, rotating seat 41, closing cover 42, rotating chamber 43, rotating mouth 44, rotating ball 45, buffer mechanism 5, buffer sleeve 51, damping chamber 52, buffer ring 53, conical coil spring 54, mounting base 6, locking rod 61, locking teeth 62, locking bevel 63, locking mouth 64, locking nut 65, quick release hole 66, quick release teeth 67, quick release bevel 68, quick release mouth 69, viscous damping assembly 7, damping groove 71, damping block 72, damping push strip 73, fluid chamber 74, viscous flow channel 75, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitation construed in them would be contrary to the spirit of the present invention.

Claims

1. A small-section, high-strength, forged aluminum flexible adjustable-distance wire clamp, comprising a pull rod (1), characterized in that: The pull rod (1) is provided with a fixed clamp (2) and a movable clamp (3) that are axially limited and circumferentially rotated, the movable clamp (3) is equipped with a ball-and-socket rotation mechanism (4), and a buffer mechanism (5) is provided between the fixed clamp (2), the movable clamp (3) and the pull rod (1); The pull rod (1) is provided with a mounting base (6) corresponding to the fixed clamp (2) and the movable clamp (3) respectively, and a quick-release assembly is provided between the mounting base (6) and the fixed clamp (2) and the movable clamp (3); The mounting base (6) is cylindrical, and a plurality of locking rods (61) are slidably mounted in the mounting base (6) and are arranged in a central symmetrical manner relative to the central axis of the mounting base (6). A locking tooth (62) opposite to the locking rod (61) is movably mounted on the inner side of the mounting base (6), and a locking inclined surface (63) that fits each other is provided on the side of the locking tooth (62) opposite to the locking rod (61). The locking inclined surface (63) converts the axial thrust of the locking rod (61) into the radial thrust of the locking tooth (62). A locking opening (64) for inserting the locking tooth (62) is provided on the pull rod (1), and a locking screw is threadedly mounted at the end of the mounting base (6). The nut (65) is pressed against the locking rod (61); the quick-release assembly includes a quick-release hole (66) provided at the end of the fixed clamp (2) and the movable clamp (3) and for inserting the mounting base (6); a quick-release tooth (67) is movably installed on the outer side of the middle portion of the mounting base (6) and is opposite to the locking rod (61); a quick-release inclined surface (68) that fits each other is provided on the side of the quick-release tooth (67) opposite to the locking rod (61); the quick-release inclined surface (68) converts the axial thrust of the locking rod (61) into the radial thrust of the quick-release tooth (67); a quick-release opening (69) is provided on the inner side of the quick-release hole (66) for inserting the quick-release tooth (67); The buffer mechanism (5) comprises a buffer sleeve (51) arranged inside the quick-release hole (66), and an adaptive damping component is provided between the fixed clamp (2), the movable clamp (3) and the buffer sleeve (51).

2. A small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 1, characterized in that: The adaptive damping assembly includes a damping cavity (52) arranged at the ends of the fixed clamp (2) and the movable clamp (3), the buffer sleeve (51) is connected to a buffer ring (53) with a circular ring shape and a C-shaped cross section, the outer side of the buffer ring (53) is in contact with the inner side of the damping cavity (52), and a pair of conical coil springs (54) are installed between the buffer ring (53) and the buffer sleeve (51), one end of the conical coil spring (54) is fixedly connected to the buffer ring (53) and the buffer sleeve (51), and the other end is fixedly connected to the damping cavity (52), and the spiral directions of the conical coil spring (54) are opposite.

3. The small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 1, characterized in that: The fixed clamp (2) and the movable clamp (3) respectively have a main clamp (21) and a sub-clamp (22) hinged to the main clamp (21), and a relative wire clamping groove (23) is provided between the main clamp (21) and the sub-clamp (22), and a clamping bolt (24) is hinged at the end of the sub-clamp (22) and plugged into the end of the main clamp (21), and the clamping bolt (24) is threadedly connected to a clamping nut (25) that fits and presses against the main clamp (21).

4. The small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 3, characterized in that: The ball-and-socket rotating mechanism (4) includes a rotating seat (41) arranged in the middle of the movable clamp (3), and closed covers (42) are fixed to both sides of the rotating seat (41) by screws. A rotating cavity (43) is left between the rotating seat (41) and the inside of the closed cover (42). The upper ends of the rotating seat (41) and the closed cover (42) are provided with a rotating opening (44) for inserting the main clamp (21). The main clamp (21) of the movable clamp (3) is connected to a rotating ball (45) movably installed in the rotating cavity (43), and a viscous damping component (7) is provided between the closed cover (42) and the rotating seat (41) and the rotating ball (45).

5. The small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 4, characterized in that: The viscous damping assembly (7) includes a damping groove (71) arranged at the bottom of the rotating seat (41), the bottom of the damping groove (71) is arc-shaped, the rotating ball (45) has a damping block (72) extending into the damping groove (71) and fitting with the bottom thereof, and a damping push bar (73) arranged in a central symmetrical manner is installed on the inner side of the damping groove (71), one end of the damping push bar (73) is pressed against the damping block (72) and the other end is opposite to the fluid cavity (74) hidden in the rotating seat (41) and the closing cover (42), and the fluid cavities (74) are interconnected through the viscous flow channel (75) and are filled with a damping medium.

6. The small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 1, characterized in that: Pin holes (11) are respectively formed at both ends of the pull rod (1), and pins (12) are inserted into the pin holes (11) and are opposite to the fixed clamp (2) and the movable clamp (3).

7. The small-section, high-strength forged aluminum flexible adjustable-distance wire clamp according to claim 1, characterized in that: The pull rod (1) is made of a casting material, and the fixed clamp (2) and the movable clamp (3) are made of a forged aluminum alloy.

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