A cable suspension clamp for installing power lines

Abstract

The present invention relates to the field of electric power engineering technology, and in particular to a cable suspension clamp for installing electric power lines, comprising four hangers and two suspension clamps, wherein the four hangers are arranged in a rectangular array, and further comprising a tensioning mechanism and an anti-interference mechanism, wherein the top of the tensioning mechanism is fixedly connected to the bottom of the hanger, the anti-interference mechanism is fixedly connected to the bottom of the tensioning mechanism, and the left and right ends of the bottom of the anti-interference mechanism are respectively connected to the two suspension clamps through a pin shaft; a safety box is fixedly connected to the bottom of the hanger; an adjustment component is installed at the right end of the upper surface of the safety box, and the ambient temperature change is sensed by the adjustment component; and a traction component is connected to the rear side of the inner cavity of the safety box through a pin shaft. The cable spacing can be changed for installation, mutual interference between cables can be prevented, signal attenuation and potential safety hazards can be eliminated, the cable has the function of lifting and lowering the cable, the cable is protected, and the service life of the cable is extended.

Description

Technical Field

[0001] The invention relates to the technical field of electric power engineering, and in particular to a cable suspension clamp for installing a power line. Background Art

[0002] Suspension wire clamp is a common standardized product, and now retains the U-bolt style (usually called boat-shaped wire clamp), which consists of a hanger U-bolt, a wire clamp hull made of forgeable cast iron, and a pressure plate. The suspension clamp is used to fix the conductor on the insulator string of the straight pole tower, or to hang the lightning arrester on the straight pole tower. It can also be used to support the transposed conductor on the transposed pole tower and fix the jumper of the tension corner pole tower. Before the suspension clamp is clamped to the cable, first find the installation position of the suspension clamp and install it, then wrap the aluminum tape around the cable clamping position to protect the cable, and finally use the suspension clamp to clamp and install the cable. Since the suspension clamp is formed by a casting process, it is impossible to change the spacing between cables when laying multiple cables. In high-voltage power transmission, the electric field and magnetic field of the high-voltage cable interact with each other, and the cables will interfere with each other, resulting in signal attenuation and safety hazards. With the changes of the seasons, the cable will become longer or shorter due to thermal expansion and contraction. The current suspension clamp cannot adjust the lifting height according to the length of the cable. The cable will be damaged due to excessive tension and have a short service life. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art that the spacing between cables cannot be changed and the cables cannot adapt to environmental changes, the present invention provides a cable suspension clamp for installing a power line.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable suspension clamp for installing a power line, comprising four hangers and two suspension clamps, wherein the four hangers are arranged in a rectangular array, and further comprising a tensioning mechanism and an anti-interference mechanism, wherein the top of the tensioning mechanism is fixedly connected to the bottom end of the hanger, the anti-interference mechanism is fixedly connected to the bottom end of the tensioning mechanism, and the left and right ends of the bottom of the anti-interference mechanism are respectively connected to the two suspension clamps through pins.

[0005] Preferably, the tensioning mechanism includes a safety box, an adjusting component, a traction component, a sleeve, a lifting rod, a reinforcing rib and a traction rope, the safety box is fixedly connected to the bottom end of the suspension rod; the adjusting component is installed at the right end of the upper surface of the safety box, and the ambient temperature change is sensed by the adjusting component; the traction component is connected to the rear side of the inner cavity of the safety box through a pin shaft; there are two sleeves, which are vertically fixedly connected to the left and right ends of the lower surface of the safety box respectively; the lifting rod can be inserted into the inner cavity of the sleeve so as to slide up and down; the reinforcing rib is installed at the top of the lifting rod; the traction rope is overlapped on the outer wall of the traction component, one end of the traction rope is connected to the right inner wall of the safety box, and the other end is connected to the top of the reinforcing rib, and the traction rope can pull the reinforcing rib to rise or fall when the traction component rotates; the cable is lifted or lowered accordingly by changing the length of the cable due to thermal expansion and contraction, so as to prevent the cable from being damaged by tension.

[0006] Preferably, the adjustment assembly includes a piston cylinder, an air nozzle, pressurized gas, a piston, a piston rod and a roller, the piston cylinder is vertically fixedly connected to the right end of the upper surface of the safety box; the air nozzle is installed on the top of the piston cylinder; the pressurized gas is filled in the inner cavity of the piston cylinder; the piston is inserted into the inner cavity of the piston cylinder so as to slide up and down, and the piston is pressed downward under the pressure of the pressurized gas; one end of the piston rod is installed on the lower surface of the piston; and the roller is rotatably installed on one end of the piston rod.

[0007] Preferably, the pressurized gas is carbon dioxide.

[0008] Preferably, the traction assembly includes a rocker arm, a slide and a fixed pulley, the rocker arm is connected to the right end of the rear side of the inner cavity of the safety box through a pin shaft, a slide is provided at the bottom end of the front side of the rocker arm, and a roller is inserted into the inner cavity of the slide; there are two fixed pulleys, which are respectively installed at the two ends of the front side of the rocker arm, and the traction rope is overlapped on the outer wall of the fixed pulley.

[0009] Preferably, the fixed pulley at the bottom is located at the rear side of the reinforcing rib.

[0010] Preferably, the anti-interference mechanism includes a base, a socket, a guide rod, a support rod, a positioning blind hole, a dial, a rotating shaft, a spur gear, a rack, a crank and a positioning bolt. The base is fixedly connected to the bottom end of the lifting rod, and the upper and lower ends of the base are both horizontally provided with left and right through sockets; there are four guide rods, each two of which are respectively plugged into the left and right sides of the inner cavity of the two sockets; there are two support rods, which are respectively fixedly connected to the outside of the left and right groups of guide rods, and the bottom end of the support rod is connected to the top end of the suspension wire clamp through a pin; there are several positioning blind holes, along the circumference The front of the base is equidistantly opened; the dial is embedded in the front of the base and is located outside the positioning blind hole; the rotating shaft is installed at the center of the inner cavity of the base so that it can rotate around its own axis through a bearing; the spur gear is keyed to the outer wall of the rotating shaft; the rack is transversely installed on the inner side of the support rod, and the rack is meshed with the spur gear; the crank is installed at the front end of the rotating shaft; the positioning bolt is screwed on the middle of the front of the crank, and the positioning bolt is inserted into the positioning blind hole to brake the rotating shaft; the spacing between the cables is adjusted according to the cable transmission voltage to prevent mutual interference during power transmission.

[0011] Preferably, a plurality of the positioning blind holes are distributed on the surface of the base with the axis of the rotating shaft as the center.

[0012] Preferably, the two racks are arranged opposite to each other vertically.

[0013] Preferably, the rear side of the positioning bolt is conical in shape.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention drives the rotating shaft to rotate clockwise or counterclockwise through the crank handle, and allows the two support rods to move outward or inward at the same time under the transmission of the spur gear and the rack until the distance between the two suspension clamps does not interfere with each other when laying cables. The positioning bolts are screwed into the positioning blind holes at corresponding positions, and the rotated spur gears are positioned, so that the cables can be installed and fixed on the suspension clamps. Therefore, the distance between the cables can be changed for laying, mutual interference between the cables can be prevented, and signal attenuation and safety hazards can be eliminated.

[0016] 2. In the present invention, as the external environment temperature gradually rises, the pressure of the pressurized gas increases, and the piston is pressurized. Conversely, as the temperature drops, the pressure of the pressurized gas on the piston decreases. Therefore, the swing arm can rotate clockwise or counterclockwise with the cooperation of the roller and the slideway, and the traction rope pulls the lifting rod to rise or fall. When the cable becomes longer or shorter due to thermal expansion and contraction with temperature, the suspension wire clamp can lift or lower the cable, and the cable length changes with the temperature. It has the function of lifting and lowering the cable, protects the cable, and extends the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a front cross-sectional view of the tensioning mechanism of the present invention;

[0019] Figure 3 For the present invention Figure 2 A in the enlarged view;

[0020] Figure 4 It is a schematic diagram of the structure of the traction assembly of the present invention;

[0021] Figure 5 It is a front cross-sectional view of the anti-interference mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the positioning bolt structure of the present invention.

[0023] In the figure: 1. suspension rod; 2. suspension wire clamp; 3. tensioning mechanism; 4. anti-interference mechanism; 31. safety box; 32. adjustment assembly; 33. traction assembly; 34. sleeve; 35. lifting rod; 36. reinforcement rib; 37. traction rope; 321. piston cylinder; 322. air nozzle; 323. pressurized gas; 324. piston; 325. piston rod; 326. roller; 331. rocker arm; 332. slideway; 333. fixed pulley; 41. base; 42. socket; 43. guide rod; 44. support rod; 45. positioning blind hole; 46. dial; 47. rotating shaft; 48. spur gear; 49. rack; 410. crank handle; 411. positioning bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0025] The present invention provides a technical solution: a cable suspension clamp for installing a power line, such as Figure 1-6 As shown, it includes four hangers 1 and two suspension wire clamps 2. The four hangers 1 are distributed in a rectangular array. The top of the hanger 1 is installed on the cable bracket. The bottom end of the hanger 1 is fixedly connected with a tensioning mechanism 3. The bottom end of the tensioning mechanism 3 is fixedly connected with an anti-interference mechanism 4. The left and right ends of the bottom of the anti-interference mechanism 4 are respectively connected to the two suspension wire clamps 2 through pins, and the cable is locked by the suspension wire clamp 2.

[0026] As a preferred solution, further, the tensioning mechanism 3 includes a safety box 31 fixedly connected to the bottom end of the suspension rod 1, an adjusting component 32 is vertically fixedly connected to the right end of the upper surface of the safety box 31, a rotatable traction component 33 is connected to the right end of the rear side of the inner cavity of the safety box 31 through a pin shaft, and sleeves 34 are vertically fixedly connected to the left and right ends of the lower surface of the safety box 31, and a lifting rod 35 that can slide up and down is inserted into the inner cavity of the sleeve 34, and a reinforcing rib 36 is installed on the top of the lifting rod 35, and the two lifting rods 35 are synchronously moved by the reinforcing rib 36. A traction rope 37 is overlapped on the outer wall of the traction component 33, one end of the traction rope 37 is connected to the right inner wall of the safety box 31, and the other end of the traction rope 37 is connected to the top of the reinforcing rib 36. The adjustment component 32 senses the change in ambient temperature, and the adjustment component 32 squeezes the traction component 33 to rotate, so that the traction rope 37 pulls the reinforcing rib 36 to rise and fall.

[0027] As a preferred solution, further, the adjustment component 32 includes a piston cylinder 321 vertically fixedly connected to the right end of the upper surface of the safety box 31, and a gas nozzle 322 is arranged on the top of the piston cylinder 321. The inner cavity of the piston cylinder 321 is filled with pressurized gas 323. The pressurized gas 323 can be replenished to the piston cylinder 321 through the gas nozzle 322. The pressurized gas 323 is carbon dioxide. The volume of carbon dioxide changes greatly when it expands and contracts, so that the pressure of the pressurized gas 323 can increase with the increase of temperature. A piston 324 that can slide up and down is inserted into the inner cavity of the piston cylinder 321, and the piston 324 is pressed down under the pressure of the pressurized gas 323. One end of a piston rod 325 is installed at the bottom of the piston 324, and a roller 326 is installed at the other end of the piston rod 325.

[0028] As a preferred solution, further, the traction assembly 33 includes a rocker arm 331 connected to the right end of the rear side of the inner cavity of the safety box 31 through a pin shaft, a slideway 332 is provided at the bottom of the front side of the rocker arm 331, and the roller 326 is inserted into the inner cavity of the slideway 332. When the piston rod 325 drives the roller 326 to descend, as the roller 326 rolls in the slideway 332, the rocker arm 331 can be pressed down to rotate clockwise. Fixed pulleys 333 are installed at both ends of the front side of the rocker arm 331, and the traction rope 37 is overlapped with the fixed pulley 333. The fixed pulley 333 at the bottom is located at the rear side of the reinforcement rib 36 to prevent the reinforcement rib 36 from colliding with the fixed pulley 333 when it rises.

[0029] As a preferred solution, further, the anti-interference mechanism 4 includes a base 41 fixedly connected to the bottom end of the lifting rod 35, and the upper and lower ends of the base 41 are provided with left and right through-holes 42, and the left and right sides of the inner cavity of the hole 42 are plugged with guide rods 43, and the outer sides of the two groups of guide rods 43 on the left and right sides are fixedly connected with support rods 44, and the guide rods 43 cooperate with the holes 42 to limit the support rods 44 so that the support rods 44 can move horizontally. The bottom end of the support rod 44 is connected to the top end of the suspension clamp 2 through a pin shaft, and the middle part of the front side of the base 41 is provided with circumferentially equidistant positioning blind holes 45, and the outer side of the positioning blind holes 45 is provided with a dial 46 connected to the front side of the base 41. The dial 46 is a length unit used to indicate the distance between the two support rods 44, and a rotating shaft that can rotate around its own axis is installed at the center position of the inner cavity of the base 41 through a bearing. The shaft 47 has a spur gear 48 connected to the outer wall key of the rotating shaft 47, and a rack 49 meshing with the spur gear 48 is installed laterally on the inner side of the support rod 44. The two racks 49 are arranged opposite to each other up and down. When the spur gear 48 rotates clockwise or counterclockwise, the two racks 49 will move outward or inward at the same time. A crank 410 is installed at the front end of the rotating shaft 47. A positioning bolt 411 is screwed on the middle part of the front side of the crank 410. The positioning bolt 411 is screwed into the positioning blind hole 45 to position the rotating shaft 47. Several positioning blind holes 45 are distributed on the surface of the base 41 with the axis of the rotating shaft 47 as the center. As the crank 410 rotates, the positioning bolt 411 can pass through each positioning blind hole 45 to realize multi-angle positioning of the rotating shaft 47. The rear side of the positioning bolt 411 is conical in shape, which is convenient for the positioning bolt 411 to be inserted into the positioning blind hole 45.

[0030] Working principle:

[0031] Step 1: adjust the distance between the cables according to the safe distance of the cables, unscrew the positioning bolt 411 from the positioning blind hole 45, release the brake on the rotating shaft 47, and drive the spur gear 48 to rotate clockwise or counterclockwise through the crank 410. Under the transmission of the spur gear 48 and the rack 49, the two support rods 44 can move outward or inward at the same time, and the distance between the two suspension clamps 2 becomes larger or smaller. The scale of the dial 46 indicated by the crank 410 is the current distance between the suspension clamps 2. Until the distance meets the wiring requirements, screw the positioning bolt 411 and insert it into the corresponding position positioning blind hole 45, position the spur gear 48, and adjust the safe cable installation distance. The cable clamping point is preferably wrapped with aluminum tape, and the aluminum tape is clamped with the suspension clamp 2 to achieve the purpose of cable positioning;

[0032] Step 2: Under the action of the cable gravity, the reinforcing rib 36 presses down the traction rope 37, and the traction rope 37 squeezes the fixed pulley 333 to make the swing rod 331 always have a counterclockwise rotation trend. In order to maintain balance, an appropriate amount of pressurized gas 323 is injected into the piston cylinder 321 through the air nozzle 322. The pressure of the pressurized gas 323 pushes the piston 324 down, thereby making the roller 326 resist the swing rod 331 to rotate counterclockwise;

[0033] Step three, as the external environment temperature rises, the pressure of the pressurized gas 323 in the piston cylinder 321 increases, and as the temperature drops, the pressure of the pressurized gas 323 decreases, which can make the piston rod 325 move downward or upward, and then make the swing arm 331 rotate clockwise or counterclockwise. Under the pull of the traction rope 37, the lifting rod 35 rises or falls, so that the suspension clamp 2 pulls the cable up or down, and the cable is tightened or released according to the length of the cable to protect the cable.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable suspension clamp for installing a power line, comprising four suspension rods (1) and two suspension clamps (2), wherein the four suspension rods (1) are arranged in a rectangular array, and characterized in that: It also includes a tensioning mechanism (3) and an anti-interference mechanism (4), wherein the top of the tensioning mechanism (3) is fixedly connected to the bottom of the suspension rod (1), the anti-interference mechanism (4) is fixedly connected to the bottom of the tensioning mechanism (3), and the left and right ends of the bottom of the anti-interference mechanism (4) are respectively connected to two suspension wire clamps (2) via pins; The tensioning mechanism (3) comprises: A safety box (31) fixedly connected to the bottom end of the suspension rod (1); An adjustment component (32) is mounted on the right end of the upper surface of the safety box (31), and a change in ambient temperature is sensed through the adjustment component (32); A traction assembly (33) connected to the rear side of the inner cavity of the safety box (31) via a pin shaft; Two sleeves (34) are respectively and vertically fixedly connected to the left and right ends of the lower surface of the safety box (31); A lifting rod (35) is inserted into the inner cavity of the sleeve (34) so ​​as to be able to slide up and down; A reinforcing rib (36) mounted on the top of the lifting rod (35); A traction rope (37) is overlapped on the outer wall of the traction assembly (33), one end of the traction rope (37) is connected to the right inner wall of the safety box (31), and the other end is connected to the top of the reinforcing rib (36), and the traction rope (37) can pull the reinforcing rib (36) to rise or fall when the traction assembly (33) rotates; The adjustment component (32) comprises: A piston cylinder (321) is vertically fixedly connected to the right end of the upper surface of the safety box (31); An air nozzle (322) is mounted on the top of the piston cylinder (321); A pressurized gas (323) is filled in the inner cavity of the piston cylinder (321), and the pressurized gas (323) is carbon dioxide; The piston (324) is inserted into the inner cavity of the piston cylinder (321) so as to slide up and down, and the piston (324) is pressed downward under the pressure of the pressurized gas (323); A piston rod (325), one end of which is mounted on the lower surface of the piston (324); The roller (326) is rotatably mounted on one end of the piston rod (325).

2. A cable suspension clamp for installing a power line according to claim 1, characterized in that: The traction assembly (33) comprises: A swing rod (331) is connected to the right end of the rear side of the inner cavity of the safety box (31) via a pin shaft; a slideway (332) is provided at the bottom of the front side of the swing rod (331), and a roller (326) is inserted into the inner cavity of the slideway (332); There are two fixed pulleys (333) respectively mounted on the two ends of the front side of the swing rod (331), and the traction rope (37) is overlapped on the outer wall of the fixed pulley (333).

3. A cable suspension clamp for installing a power line according to claim 2, characterized in that: The fixed pulley (333) located at the bottom is located at the rear side of the reinforcing rib (36).

4. A cable suspension clamp for installing a power line according to claim 3, characterized in that: The anti-interference mechanism (4) comprises: A base (41) is fixedly connected to the bottom end of the lifting rod (35), and both upper and lower ends of the base (41) are provided with insertion holes (42) extending therethrough in a horizontal direction. Four guide rods (43) are provided, with two guide rods forming a group and respectively plugged into the left and right sides of the inner cavities of the two insertion holes (42); Two support rods (44) are fixedly connected to the outsides of the left and right groups of guide rods (43), respectively, and the bottom ends of the support rods (44) are connected to the top ends of the suspension wire clamps (2) via pins; A plurality of positioning blind holes (45) are provided on the front side of the base (41) at equal intervals along the circumferential direction; A scale plate (46) embedded in the front surface of the base (41) and located outside the positioning blind hole (45); A rotating shaft (47) is mounted at the center of the inner cavity of the base (41) via a bearing so as to be rotatable about its own axis; A spur gear (48) key-connected to the outer wall of the rotating shaft (47); A rack (49) is transversely mounted on the inner side of the support rod (44), and the rack (49) is meshingly connected with the spur gear (48); A crank handle (410) mounted on the front end of the rotating shaft (47); A positioning bolt (411) is screwed onto the middle portion of the front face of the crank handle (410), and the positioning bolt (411) is inserted into the positioning blind hole (45) to brake the rotating shaft (47).

5. A cable suspension clamp for installing a power line according to claim 4, characterized in that: A plurality of the positioning blind holes (45) are distributed on the surface of the base (41) with the axis of the rotating shaft (47) as the center.

6. A cable suspension clamp for installing a power line according to claim 5, characterized in that: The two racks (49) are arranged in an upper and lower position relative to each other.

7. A cable suspension clamp for installing a power line according to claim 6, characterized in that: The rear side of the positioning bolt (411) is in a conical shape.

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