Special-shaped parallel groove clamp for power line erection

Abstract

The utility model relates to the technical field of special-shaped parallel groove clamps, and provides a special-shaped parallel groove clamp for power line erection, which comprises a base, a placement groove is formed in the top of the base, a supporting rod is fixedly connected to the top of the base, and a top plate is fixedly connected to the top of the supporting rod. A threaded rod penetrates through the top of the base and is rotationally connected with the top of the base, and an upper clamping plate is connected to the surface of the supporting rod in a sliding mode. Therefore, when a threaded rod is rotated clockwise to drive an upper clamping plate to move downwards to cooperate with a placement groove to clamp and fasten a wire, an arc-shaped block is driven to be clamped into a clamping groove through cooperation of an air bag, an air pressure bin, a push rod and other assemblies, and the arc-shaped block is clamped into the clamping groove, so that the threaded rod cannot rotate clockwise to drive the upper clamping plate to move downwards; and when the threaded rod is rotated anticlockwise, the upper clamping plate moves upwards to loosen the electric wire, so that the influence is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of special-shaped parallel groove wire clamps, and specifically relates to a special-shaped parallel groove wire clamp for erecting power lines. Background Art

[0002] Parallel groove clamps are used to connect aluminum stranded wires or steel core aluminum stranded wires with small and medium cross-sections and steel stranded wires of overhead lightning arresters at locations that do not bear tension, and are also used for jumper connections of non-linear pole towers. Power engineering materials (metal fittings) are used to connect conductors to each other and are mainly used in power line projects.

[0003] The utility model with publication number CN213989236U discloses an electric parallel groove wire clamp, comprising a lower seat, an upper pressure block, a bolt assembly and a bolt positioning seat, the lower seat is provided with a first wire clamping C-shaped groove, the first wire clamping C-shaped groove is provided with a first wire clamping serration, the middle part of the lower seat is provided with a third bolt installation hole and a lower seat positioning column; the upper pressure block is provided with an upper pressure block trapezoidal mouth and a second wire clamping C-shaped groove, the second wire clamping C-shaped groove is provided with a second wire clamping serration, the first wire clamping serration and the second wire clamping serration are staggered, and in the above application document, the upper pressure block is driven to move downward by rotating the bolt assembly to squeeze and clamp the wire, and when the bolt assembly is rotated to drive the upper pressure block to move downward, the upper pressure block may excessively squeeze the wire, which may easily cause damage to the surface of the wire. Utility Model Content

[0004] The utility model provides a special-shaped parallel groove wire clamp for erecting power lines, which solves the problems in the related technology.

[0005] The technical scheme of the utility model is as follows: a special-shaped parallel groove wire clamp for erecting a power line, comprising a base, the top of the base is provided with a placement groove, the top of the base is fixedly connected with a support rod, the top of the support rod is fixedly connected with a top plate, the top of the base passes through and is rotatably connected with a threaded rod, the surface of the support rod is slidably connected with an upper clamping plate, the bottom of the base is provided with an anti-over-clamping mechanism, and an auxiliary clamping mechanism is provided inside the placement groove; the anti-over-clamping mechanism comprises an air pressure chamber and a card slot, the air pressure chamber is fixedly connected to the inside of the base, one end of the air pressure chamber is provided with an air bag, and the other end of the air pressure chamber has an internal piston slidably connected with a push rod, the end of the push rod away from the air pressure chamber is fixedly connected with a push block, the end of the push block away from the push rod is provided with a groove, the inside of the groove is provided with a telescopic spring, the inside of the groove is slidably connected with an arc block through the telescopic spring, and the card slot is opened on the surface of the threaded rod near the bottom end.

[0006] The top of the upper clamping plate is in contact with the bottom of the top plate in an initial state, and the upper clamping plate is threadedly connected to the threaded rod through an internal thread. When the threaded rod is rotated clockwise, the upper clamping plate will be driven to move downward to cooperate with the placement groove to clamp the wire.

[0007] The airbag protrudes from the surface of the placement groove in the initial state, and is in an expanded state. When the upper clamp cooperates with the placement groove to clamp and tighten the wire, the airbag will be completely squeezed. The compressed airbag will enter the air pressure chamber and push the push rod to move outside the air pressure chamber.

[0008] The end of the push block away from the push rod is close to the slot, and the opening size of the slot is equal to the opening size of the groove. When the push rod moves out of the air pressure chamber, it will drive the push block to the slot, and the arc block will be stuck in the slot.

[0009] The arc block is made of stainless steel, the depth of the groove is greater than the length of the arc block, the arc block made of stainless steel has high strength and is not easy to rust, and the arc surface of the arc block can be completely retracted into the groove when squeezed.

[0010] There are ten groups of the clamping slots, and the ten groups of the clamping slots are arranged in a circular array on the surface of the threaded rod. The ten groups of the clamping slots in a circular array on the surface of the threaded rod can ensure the arc block is clamped in.

[0011] The auxiliary clamping mechanism includes a trough body and a hydraulic warehouse, the trough body is opened at the bottom of the placement slot, a compression spring is arranged inside the trough body, an auxiliary clamping plate is slidably connected inside the trough body through the compression spring, a sliding rod is fixedly connected to the bottom of the auxiliary clamping plate, the sliding rod penetrates and is slidably connected to the bottom of the base, a square groove is opened on the surface of the sliding rod, an elastic spring is arranged inside the square groove, a card block is slidably connected inside the square groove through the elastic spring, a pressure rod is slidably connected to the piston at one end of the hydraulic warehouse, and a push rod is slidably connected to the piston at the other two ends of the hydraulic warehouse.

[0012] The auxiliary clamp is initially at the same level as the bottom surface of the placement slot, and the compression spring is initially in a taut state. When the compression spring rebounds, it drives the auxiliary clamp to bounce upward and protrude from the bottom of the placement slot.

[0013] The pressure rod is located below the upper clamping plate, and the end of the push rod away from the hydraulic compartment is close to the block. When the upper clamping plate moves to the lowermost end, it will contact the pressure rod and drive the pressure rod to move downward. The downward movement of the pressure rod will drive the push rod to move toward the block through the hydraulic pressure in the hydraulic compartment.

[0014] In the initial state, one half of the card block is located outside the square groove, and the top of the card block is in conflict with the bottom of the base in the initial state. At the beginning, the top of the card block conflicts with the bottom of the base so that the slide bar cannot move upward.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. The utility model is provided with an anti-over-clamping mechanism, so that when the threaded rod is rotated clockwise to drive the upper clamping plate to move downward and cooperate with the placement groove to clamp and tighten the wire, the arc block will be driven to be stuck in the slot through the cooperation of components such as the air bag, the air pressure chamber, and the push rod. The arc block is stuck in the slot so that the threaded rod can no longer rotate clockwise to drive the upper clamping plate to move downward, thereby preventing the wire from being damaged due to excessive clamping. When the threaded rod is rotated counterclockwise to move the upper clamping plate upward to loosen the wire, it will not be affected.

[0017] 2. The utility model is provided with an auxiliary clamping mechanism, so that when the rotating threaded rod drives the upper clamping plate to move downward to the bottom and still cannot clamp and tighten the wire, the auxiliary clamping plate will move upward through the cooperation of the pressure rod, hydraulic bin, support rod and other components to cooperate with the upper clamping plate to clamp the wire, which effectively solves the problem that the wire diameter is small and cannot be effectively clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the structure of the anti-over-clamping mechanism of the utility model;

[0022] Figure 4 This is a three-dimensional cross-sectional view of the anti-over-clamping mechanism structure of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of the auxiliary clamping mechanism structure of the utility model.

[0024] In the figure: 1. base; 2. placement groove; 3. support rod; 4. top plate; 5. threaded rod; 6. upper clamping plate; 7. anti-over-clamping mechanism; 71. pneumatic chamber; 72. air bag; 73. push rod; 74. push block; 75. groove; 76. telescopic spring; 77. arc block; 78. clamping groove; 8. auxiliary clamping mechanism; 81. trough body; 82. compression spring; 83. auxiliary clamping plate; 84. sliding rod; 85. square groove; 86. elastic spring; 87. clamping block; 88. hydraulic chamber; 89. pressure rod; 810. push rod. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 to Figure 4 As shown, this embodiment proposes a special-shaped parallel groove wire clamp for erecting power lines, including a base 1, a placement groove 2 is opened on the top of the base 1, a support rod 3 is fixedly connected to the top of the base 1, a top plate 4 is fixedly connected to the top of the support rod 3, a threaded rod 5 passes through and is rotatably connected to the top of the base 1, an upper clamping plate 6 is slidably connected to the surface of the support rod 3, the top of the upper clamping plate 6 is in contact with the bottom of the top plate 4 in the initial state, the upper clamping plate 6 is threadedly connected to the threaded rod 5 through the built-in thread, and when the threaded rod 5 is rotated clockwise, the upper clamping plate 6 is driven to move downward to cooperate with the placement groove 2 The wires are clamped, an anti-over-clamping mechanism 7 is provided at the bottom of the base 1, and an auxiliary clamping mechanism 8 is provided inside the placement groove 2; the anti-over-clamping mechanism 7 includes an air pressure chamber 71 and a card slot 78, the air pressure chamber 71 is fixedly connected to the inside of the base 1, an air bag 72 is provided at one end of the air pressure chamber 71, and a push rod 73 is slidably connected to the internal piston of the other end of the air pressure chamber 71. The air bag 72 protrudes from the surface of the placement groove 2 in the initial state, and the air bag 72 is in an expanded state in the initial state. When the upper clamping plate 6 cooperates with the placement groove 2 to clamp and tighten the wires, it will completely squeeze the air bag 7. 2. When the airbag 72 is squeezed, the air pressure inside it will enter the air pressure chamber 71 to push the push rod 73 to move out of the air pressure chamber 71. The end of the push rod 73 away from the air pressure chamber 71 is fixedly connected to a push block 74. The end of the push block 74 away from the push rod 73 is provided with a groove 75. A telescopic spring 76 is arranged inside the groove 75. An arc block 77 is slidably connected to the inside of the groove 75 through the telescopic spring 76. The material of the arc block 77 is stainless steel. The depth of the groove 75 is greater than the length of the arc block 77. The arc block 77 made of stainless steel has high strength and is not easy to rust. The arc surface of the arc block 77 When squeezed, it can be completely retracted into the groove 75. The slot 78 is opened on the surface of the threaded rod 5 near the bottom end. The end of the push block 74 away from the push rod 73 is close to the slot 78. The opening size of the slot 78 is equal to the opening size of the groove 75. The push rod 73 moves out of the air pressure chamber 71 and drives the push block 74 to the slot 78. At this time, the arc block 77 will be stuck in the slot 78. There are ten groups of slots 78, and the ten groups of slots 78 are arranged in a circular array on the surface of the threaded rod 5. The ten groups of slots 78 are arranged in a circular array on the surface of the threaded rod 5 to ensure the insertion of the arc block 77.

[0028] In this embodiment, the wire is passed through the placement groove 2, and the threaded rod 5 is rotated clockwise. When the threaded rod 5 is rotated clockwise, the upper clamping plate 6 is driven to move downward to cooperate with the placement groove 2 to clamp the wire. When the upper clamping plate 6 cooperates with the placement groove 2 to clamp and tighten the wire, the air bag 72 is completely squeezed. The air pressure inside the air bag 72 is squeezed and enters the air pressure chamber 71 to push the push rod 73 to move out of the air pressure chamber 71. The push rod 73 moves out of the air pressure chamber 71 and drives the push block 74 to the slot 78. At this time, the arc block 77 is stuck in the slot 78. At this time, the inner wall of the slot 78 and the straight line of the arc block 77 are The facing interference makes it impossible to rotate the threaded rod 5 clockwise to drive the upper clamping plate 6 to move downward, thereby preventing the wire from being excessively clamped and causing damage to the wire surface. When the threaded rod 5 is rotated counterclockwise, the arc surface of the arc block 77 is squeezed against the inner wall of the slot 78, causing the arc block 77 to retract into the groove 75, which will not affect the counterclockwise rotation of the threaded rod 5. The counterclockwise rotation of the threaded rod 5 drives the upper clamping plate 6 to move upward to release the wire. At this time, the rebound air pressure of the airbag 72 will enter the airbag 72, and the push rod 73 drives the push block 74 away from the slot 78, and the telescopic spring 76 drives the arc block 77 to pop out and restore.

[0029] Example 2

[0030] like Figure 1 to Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes an auxiliary clamping mechanism 8, including a groove body 81 and a hydraulic chamber 88. The groove body 81 is opened at the bottom of the placement groove 2, and a compression spring 82 is arranged inside the groove body 81. The inside of the groove body 81 is slidably connected with an auxiliary clamping plate 83 through the compression spring 82. In the initial state, the auxiliary clamping plate 83 is at the same level as the bottom surface of the placement groove 2, and the compression spring 82 is in a taut state in the initial state. When the compression spring 82 rebounds, it will drive the auxiliary clamping plate 83 to bounce up and protrude from the bottom of the placement groove 2. The bottom of the auxiliary clamping plate 83 is fixedly connected with a sliding rod 84, which penetrates and is slidably connected to the bottom of the base 1. The surface of the sliding rod 84 is provided with a square groove 85, and the inside of the square groove 85 is provided with an elastic spring 8 6. The interior of the square groove 85 is slidably connected with a block 87 through an elastic spring 86. In the initial state, one-half of the block 87 is located outside the square groove 85, and the top of the block 87 is in conflict with the bottom of the base 1 in the initial state. At the beginning, the top of the block 87 conflicts with the bottom of the base 1, so that the slide bar 84 cannot move upward. A pressure rod 89 is slidably connected to the internal piston of one end of the hydraulic chamber 88, and a push rod 810 is slidably connected to the other two ends of the hydraulic chamber 88. The pressure rod 89 is located below the upper clamping plate 6, and the end of the push rod 810 away from the hydraulic chamber 88 is close to the block 87. When the upper clamping plate 6 moves to the lowest end, it will contact the pressure rod 89 and drive the pressure rod 89 to move downward. The downward movement of the pressure rod 89 will drive the push rod 810 to move toward the block 87 through the hydraulic pressure in the hydraulic chamber 88.

[0031] In this embodiment, when the diameter of the wire is small and the threaded rod 5 is rotated clockwise to drive the upper clamping plate 6 to move downward and cannot clamp the wire tightly, the upper clamping plate 6 is driven to move to the bottom of the base 1. At this time, the upper clamping plate 6 will press the pressure rod 89 downward, and the pressure rod 89 will move downward to drive the push rod 810 to move toward the block 87 through the hydraulic pressure in the hydraulic chamber 88. At this time, the push rod 810 will press the block 87 into the square groove 85. At this time, the compression spring 82 will rebound and drive the auxiliary clamping plate 83 to bounce upward and protrude from the bottom of the placement groove 2. At this time, the auxiliary clamping plate 83 The clamping plate 83 will cooperate with the upper clamping plate 6 to clamp the wire. When the upper clamping plate 6 moves upward and away from the wire, the slide bar 84 can be pulled downward to drive the auxiliary clamping plate 83 to return. At this time, the elastic spring 86 drives the card block 87 to pop out and conflict with the bottom of the base 1, so that the slide bar 84 cannot move upward. The popping out of the card block 87 will drive the support rod 810 to move into the hydraulic compartment 88 to return. At this time, the hydraulic pressure in the hydraulic compartment 88 drives the pressure rod 89 to move upward to return, which effectively solves the problem that the wire diameter is too small to be effectively clamped.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special-shaped parallel groove wire clamp for installing power lines, comprising a base (1), characterized in that: The top of the base (1) is provided with a placement groove (2), the top of the base (1) is fixedly connected to a support rod (3), the top of the support rod (3) is fixedly connected to a top plate (4), a threaded rod (5) passes through and is rotatably connected to the top of the base (1), the surface of the support rod (3) is slidably connected to an upper clamping plate (6), the bottom of the base (1) is provided with an over-clamping prevention mechanism (7), and an auxiliary clamping mechanism (8) is provided inside the placement groove (2); The anti-excessive clamping mechanism (7) comprises an air pressure chamber (71) and a clamping groove (78), wherein the air pressure chamber (71) is fixedly connected to the inside of the base (1), an air bag (72) is arranged at one end of the air pressure chamber (71), a push rod (73) is slidably connected to the internal piston of the other end of the air pressure chamber (71), an end of the push rod (73) away from the air pressure chamber (71) is fixedly connected to a push block (74), an end of the push block (74) away from the push rod (73) is provided with a groove (75), a telescopic spring (76) is arranged inside the groove (75), an arc block (77) is slidably connected inside the groove (75) via the telescopic spring (76), and the clamping groove (78) is provided on the surface of the threaded rod (5) close to the bottom end.

2. The special-shaped parallel groove clamp for power line installation according to claim 1, characterized in that: In an initial state, the top of the upper clamping plate (6) contacts the bottom of the top plate (4), and the upper clamping plate (6) is threadedly connected to the threaded rod (5) via an internal thread.

3. The special-shaped parallel groove clamp for power line installation according to claim 2, characterized in that: In an initial state, the airbag (72) protrudes from the surface of the placement groove (2), and in an initial state, the airbag (72) is in an expanded state.

4. The special-shaped parallel groove clamp for power line installation according to claim 3, characterized in that: One end of the push block (74) away from the push rod (73) is close to the clamping slot (78), and the opening size of the clamping slot (78) is equal to the opening size of the groove (75).

5. The special-shaped parallel groove clamp for power line installation according to claim 4, characterized in that: The arc block (77) is made of stainless steel, and the depth of the groove (75) is greater than the length of the arc block (77).

6. The special-shaped parallel groove clamp for power line installation according to claim 5, characterized in that: The number of the clamping grooves (78) is ten, and the ten groups of the clamping grooves (78) are arranged in a circular array on the surface of the threaded rod (5).

7. A special-shaped parallel groove clamp for power line installation according to claim 6, characterized in that: The auxiliary clamping mechanism (8) comprises a groove body (81) and a hydraulic bin (88); the groove body (81) is provided at the bottom of the placement groove (2); a compression spring (82) is provided inside the groove body (81); an auxiliary clamping plate (83) is slidably connected inside the groove body (81) via the compression spring (82); a sliding rod (84) is fixedly connected to the bottom of the auxiliary clamping plate (83); the sliding rod (84) penetrates the bottom of the base (1) and is slidably connected; a square groove (85) is provided on the surface of the sliding rod (84); an elastic spring (86) is provided inside the square groove (85); a clamping block (87) is slidably connected inside the square groove (85) via the elastic spring (86); a pressure rod (89) is slidably connected inside one end of the hydraulic bin (88); and a push rod (810) is slidably connected inside the other two ends of the hydraulic bin (88).

8. The special-shaped parallel groove clamp for power line installation according to claim 7, characterized in that: In the initial state, the auxiliary clamping plate (83) is at the same level as the bottom surface of the placement groove (2), and the compression spring (82) is in a tensioned state in the initial state.

9. The special-shaped parallel groove clamp for power line installation according to claim 8, characterized in that: The pressing rod (89) is located below the upper clamping plate (6), and one end of the supporting rod (810) away from the hydraulic chamber (88) is close to the clamping block (87).

10. The special-shaped parallel groove clamp for power line installation according to claim 9, characterized in that: In the initial state, one half of the block (87) is located outside the square groove (85), and in the initial state, the top of the block (87) is in conflict with the bottom of the base (1).

Images