Automatic ignition device for parallel groove clamp of insulated overhead line

Abstract

The utility model relates to the field of electric power, in particular to an automatic ignition device for a parallel groove clamp of an insulated overhead line, which comprises a striking cylinder arranged in a protective shell and a wire clamp elastically clamped and fixed by a wire clamp clamp on the protective shell, and a bolt on the wire clamp corresponds to the striking end of the striking cylinder in position; the protection shell is provided with a guide fork located on the main wire installation side, a V-shaped guide channel with an upward opening is defined between the guide fork and the wire clamp, and the tip end of the V-shaped guide channel corresponds to the position of a wire groove in the main wire side of the wire clamp. The protection shell is further provided with a pressing device located on the auxiliary wire installation side, the pressing device comprises a wire pressing claw matched with the protection shell in a rotating mode, and the rotating axis and the wire groove axis of the wire clamp are arranged in parallel. The wire pressing claw is driven by a power source to rotate so as to tightly press the auxiliary wire on the wire groove on the auxiliary wire side of the wire clamp, and the motion track of the wire pressing claw avoids the position of the wire clamp. According to the utility model, the installation difficulty and the operation risk of the parallel groove clamp are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of power, specifically an automatic connection device for insulated overhead line clamps. Background Technology

[0002] Parallel clamps are hardware used in power lines to connect conductors or branch leads in parallel, mainly for splicing applications where tension is not required. They are characterized by their simple structure and easy installation, and are suitable for applications such as jumper connections, branch leads, and equipment leads in overhead lines. Their structure, as described in announcement number "CN203339319U", includes a pressure plate, an upper cover, a lower cover, and a bolt assembly. Tightening the bolt assembly causes the upper and lower covers to move towards each other or separate, thus clamping the conductors. When the upper cover is attached to the lower cover, it forms two clamping slots, which are used to clamp the main line and the branch line, respectively.

[0003] The installation of wire clamps relies on manual high-altitude live-line work. First, the operator places the auxiliary and main wires into the clamp's slots. Then, a hand-held striking cylinder (a specially designed sleeve, usually used with hydraulic or mechanical impact tools, with hexagonal or staggered grooves to fit over bolt heads or nuts, transmitting torque through external impact for rapid tightening or loosening) strikes the clamp's bolt assembly, causing the upper and lower covers to move towards each other, thus clamping the main and auxiliary wires and completing the installation. During installation, due to the high-altitude environment, the connection may be unstable during hanging or in strong winds. During tightening, the main or auxiliary wire can easily slip out of the clamp's slots. The operator must simultaneously ensure the main and auxiliary wires are aligned with the slots while operating the striking cylinder, making the operation difficult and risky, thus requiring a solution. Utility Model Content

[0004] To avoid and overcome the technical problems existing in the prior art, this utility model provides an automatic connection device for parallel groove clamps of insulated overhead lines. This utility model significantly reduces the installation difficulty and operational risks of parallel groove clamps.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic connection device for insulated overhead line parallel trench clamps includes a striking cylinder built into a protective shell and a clamp elastically held and fixed by a clamp on the protective shell, wherein the bolt on the clamp corresponds to the striking end of the striking cylinder.

[0007] The protective shell is equipped with a guide fork located on the main line mounting side. The guide fork and the wire clamp form an upward-opening V-shaped guide channel. The tip of the V-shaped guide channel corresponds to the wire groove position on the main line side of the wire clamp.

[0008] The protective housing is also equipped with a clamping device located on the side where the secondary line is installed. The clamping device includes a clamping claw that rotates with the protective housing. The axis of rotation is arranged parallel to the axis of the wire groove of the clamp. The clamping claw is driven to rotate by a power source to clamp the secondary line onto the wire groove on the secondary line side of the clamp. The movement trajectory of the clamping claw avoids the position of the clamp.

[0009] As a further embodiment of this utility model: the wire pressing claw rotates and engages with the protective shell via a rotating shaft. With the rotating shaft as the boundary, one side of the wire pressing claw is an arc-shaped wire pressing end, and the other side of the wire pressing claw is a driving end connected to the guide slider. The guide slider is driven to rise and fall by a power source to drive the wire pressing claw to press and position the sub-wire.

[0010] As a further embodiment of this utility model: the power source includes a lifting screw arranged with a plumb bob inside the protective shell, a positioning pin is horizontally arranged on the screw slide of the lifting screw, and a guide groove is opened along the length direction on the guide slider. The width of the guide groove corresponds to the diameter of the positioning pin, and the positioning pin is inserted into the guide groove and slides in cooperation with the guide groove.

[0011] As a further improvement of this utility model: two sets of wire clamping claws are provided, symmetrically arranged on both sides of the wire clamp along the length of the secondary wire; the driving end of the wire clamping claw and the guide slider form a detachable fixing.

[0012] As a further embodiment of this utility model: the wire clamp includes two sets of clamp bases fixed on the protective shell. The two clamp bases are symmetrically distributed on both sides of the wire clamp. A sliding groove is opened on the clamp base along the horizontal direction. A clamping block is installed in the sliding groove. An elastic unit is installed on the side of the clamp base away from the wire clamp. The clamping block is elastically clamped by the action of the elastic unit.

[0013] As a further embodiment of this utility model: the elastic unit includes a guide rod horizontally mounted on the clamp base, the guide rod passing through the clamp block and slidingly engaging with the clamp block; a spring seat is provided at the end of the guide rod and arranged parallel to the clamp base, a spring is sleeved on the guide rod, and the two ends of the spring abut against the clamp block and the spring seat respectively.

[0014] As a further improvement of this utility model: along the direction close to the wire clamp, the width of the clamping end of the clamping block gradually narrows, so that the vertical cross section of the clamping block is an isosceles trapezoidal shape, and the clamping end of the clamping block abuts and cooperates with the upper and lower clamping plates of the wire clamp.

[0015] As a further improvement of this utility model: the protective shell is provided with a positioning seat for fixing the insulating rod, and the positioning seat has a slot opened in the horizontal direction, and the end of the insulating rod is horizontally inserted into the slot of the positioning seat for positioning.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In operation, this utility model involves inserting the wire clamp into the wire clamp holder from top to bottom, where the clamp elastically holds and fixes the wire clamp. The auxiliary wire is then inserted into the corresponding wire groove, and the clamping device is activated to press the auxiliary wire firmly. The insulating rod is connected and fixed to the positioning seat, and the operator, holding the insulating rod and carrying the ignition device, reaches the working height. Upon reaching the working height, the ignition device is lifted, allowing the main wire to enter the corresponding wire groove along the guide fork. The striking cylinder is then activated to tighten the wire clamp, simultaneously pressing both the main and auxiliary wires. Subsequently, the clamping claws reset, and the ignition device is moved downwards to disengage the wire clamp from the clamp holder, completing the construction operation. This significantly reduces the installation difficulty and operational risks of parallel groove wire clamps.

[0018] 2. In this utility model, while the lead screw slide is raised and lowered along the lifting lead screw, the positioning pin slides along the guide groove of the lead screw slide, thereby driving the guide slider and the pressure claw connected to the guide slider to rotate, so that the pressure claw presses and fixes the sub-line, which can realize the rapid positioning of the sub-line. The symmetrical arrangement of the pressure claw can realize the two-point positioning of the sub-line.

[0019] 3. In this invention, the width of the clamping end of the clamping block gradually narrows along the direction close to the wire clamp, and the vertical cross-section is an isosceles trapezoid. During the clamping process, the gradually changing size design of the clamping surface of the clamping block adapts to the opposing movement of the upper and lower clamping plates of the wire clamp. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the centerline clamp of this utility model.

[0022] In the picture:

[0023] 1. Protective casing; 11. Guide fork;

[0024] 2. Clamping device; 21. Screw slide; 211. Locating pin;

[0025] 22. Guide slider; 221. Guide groove;

[0026] 23. Wire clamping claw; 24. Rotating shaft; 25. Lifting screw;

[0027] 3. Wire clamp; 31. Clamping block; 32. Guide rod;

[0028] 34. Spring seat; 35. Clamp base;

[0029] 4. Strike tube; 5. Positioning base;

[0030] 6. Wire clamp; 61. Upper clamp plate; 62. Lower clamp plate; 63. Wire groove; 64. Bolt;

[0031] 7. Main storyline; 8. Sub-storyline. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-2 In this embodiment of the present invention, an automatic connection device for insulated overhead line clamps includes a protective shell 1, and a striking cylinder 4 for fastening the clamps 6 is built into the protective shell 1. The striking cylinder 4 can be connected to the protective shell 1 by bolts. The striking cylinder 4 is an existing structure and will not be described in detail.

[0034] The protective shell 1 is provided with a positioning seat 5. The positioning seat 5 has a slot opened in the horizontal direction. The end of the insulating rod is horizontally inserted into the slot of the positioning seat 5 for positioning, thereby achieving detachable fixing of the insulating rod through the positioning seat 5. By holding the insulating rod, the fire-connecting device can be sent to the main line fire-connecting point.

[0035] The protective shell 1 has a wire clamp 3 installed directly above the striking cylinder 4, which clamps the wire clamp 6. The wire clamp 6 includes an upper clamping plate 61 and a lower clamping plate 62. The upper clamping plate 61 and the lower clamping plate 62 are symmetrically provided with wire grooves 63. The two sets of wire grooves 63 on the upper clamping plate 61 and the lower clamping plate 62 are used to clamp the main wire 7 and the auxiliary wire 8, respectively.

[0036] The grooves 63 on both the upper clamp 61 and the lower clamp 62 are serrated to increase the friction with the wires. The upper clamp 61 and the lower clamp 62 are fixed together by bolts 64. When tightening the clamps, the striking cylinder 4 screws the bolts 64, causing the upper clamp 61 to move downward and cooperate with the lower clamp 62 to clamp the main wire 7 and the auxiliary wire 8 simultaneously.

[0037] The wire clamp 3 includes a vertically arranged clamp base 35 with a horizontally oriented sliding groove on the clamp base 35. The clamping block 31 is slidably disposed within the sliding groove. Two sets of guide rods 32 are horizontally fixed at the end of the clamp base 35 away from the wire clamp 6. The two sets of guide rods 32 are vertically aligned and arranged parallel to each other. The ends of the two sets of guide rods 32 are fixed to spring seats 34, and both sets of guide rods 32 pass through the clamping block 31, slidingly engaging with the clamping block 31. Springs are fitted on the guide rods 32, with both ends of the springs abutting against the clamping block 31 and the spring seat 34, respectively. The springs apply an elastic force to the clamping block 31, allowing the two sets of clamping blocks 31 to clamp the wire clamp 6.

[0038] Clamping blocks 31 are arranged on the axis of symmetry of the upper clamping plate 61 and the lower clamping plate 62. Along the direction close to the wire clamp 6, the width of the clamping end of clamping block 31 gradually narrows, and the vertical cross-section is an isosceles trapezoid. During the clamping process, the gradually changing size design of the clamping surface of clamping block 31 adapts to the tightening process of wire clamp 6.

[0039] With the fixed position of the wire clamp 6 as the boundary, the protective shell 1 has a guide fork 11 on one side of the wire clamp 6 and a clamping device 2 on the other side of the wire clamp 6. The guide fork 11 is used to guide the main wire 7, and the clamping device 2 is used to clamp and fix the sub-wire 8 onto the corresponding wire groove 63 in advance before tightening the sub-wire 8.

[0040] The guide fork 11 is arranged at an angle, and the guide fork 11 and the wire clamp 3 enclose an upward-opening V-shaped guide channel. The tip of the V-shaped guide channel corresponds to the wire groove 63 on the main wire side of the wire clamp 6. After the main wire 7 slides along the guide fork 11, it finally falls into the wire groove 63 on the main wire side of the lower clamp 62. The groove surfaces of both the upper clamp 61 and the lower clamp 62 are serrated to increase the friction between them and the wire.

[0041] A clamping claw 23 is mounted on the protective shell 1 via a rotating shaft 24. The clamping claw 23 rotates with the protective shell 1 via the rotating shaft 24, thereby clamping the sub-wire 8. The axis of the rotating shaft 24 is parallel to the axis of the sub-wire 8. The clamping end of the clamping claw 23 is arc-shaped, adapted to the diameter of the sub-wire 8, and clamps the sub-wire 8 by tilting from top to bottom. The other end of the clamping claw 23 is the drive end, which is connected to the guide slider 22. The connection method can be selected by plug-in positioning or bolt fixing, etc. Different sizes of clamping claws 23 can be replaced according to different diameters of the sub-wire. Preferably, two sets of clamping claws 23 are provided, symmetrically arranged on both sides of the wire clamp 6, so as to clamp and position the sub-wire at two points, and the rotation trajectory of the clamping claw 23 avoids the position of the wire clamp 6.

[0042] The clamping device 2 includes a vertically arranged lifting screw 25 inside the protective shell 1. A screw slide 21 is provided on the lifting screw 25. Horizontally arranged positioning pins 211 are symmetrically arranged on the screw slide 21. A guide groove 221 is formed along the length of the guide slider 22. The positioning pins 211 are inserted into the guide groove 221 and slide in a position to maintain their position. The specific construction operation includes the following steps:

[0043] On the ground, insert the wire clamp 6 into the wire clamp fixture 3 from top to bottom, and the wire clamp 6 is elastically clamped and fixed by the wire clamp fixture 3. Insert the auxiliary wire 8 into the corresponding wire groove 63, activate the clamping device 2, and while the lead screw slide 21 moves up and down along the lifting lead screw 25, the positioning pin 211 slides along the guide groove 221 of the lead screw slide 21, thereby driving the guide slider 22 and the wire pressing claw 23 connected to the guide slider 22 to rotate, so that the wire pressing claw 23 clamps and fixes the auxiliary wire 8. Connect and fix the insulating rod to the positioning seat 5, and the operator holds the insulating rod and carries the fire-receiving device to the working height. After reaching the working height, lift the fire-receiving device, so that the main wire 7 enters the corresponding wire groove along the guide fork 11, activate the striking cylinder 4 to tighten the wire clamp 6, thereby clamping the main wire 7 and the auxiliary wire 8 at the same time. Then the wire pressing claw 23 resets, and the fire-receiving device moves downward to disengage the wire clamp 6 from the wire clamp fixture 3, completing the construction operation. The control of each structure can be carried out by remote control.

[0044] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0045] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. An automatic splicing device for an insulated overhead conductor and groove clamp, characterized by, Includes a striking cylinder (4) built into a protective shell (1) and a wire clamp (6) that is elastically clamped and fixed by a wire clamp (3) on the protective shell (1), wherein the bolt (64) on the wire clamp (6) corresponds to the striking end position of the striking cylinder (4); The protective shell (1) is provided with a guide fork (11) located on the side of the main line (7). The guide fork (11) and the wire clamp (3) form an upward-opening V-shaped guide channel. The tip of the V-shaped guide channel corresponds to the position of the wire groove (63) on the main line side of the wire clamp (6). The protective shell (1) is also provided with a clamping device (2) located on the side of the sub-line (8). The clamping device (2) includes a clamping claw (23) that rotates with the protective shell (1). The rotation axis is arranged parallel to the axis of the wire groove (63) of the wire clamp (6). The clamping claw (23) is driven to rotate by a power source to clamp the sub-line (8) onto the wire groove (63) on the side of the sub-line of the wire clamp (6). The movement trajectory of the clamping claw (23) avoids the position of the wire clamp (6).

2. An automatic splicing device for an insulated overhead power line and groove clamp according to claim 1, characterized in that, The wire pressing claw (23) rotates and engages with the protective shell (1) via the rotating shaft (24). With the rotating shaft (24) as the boundary, one side of the wire pressing claw (23) is an arc-shaped wire pressing end, and the other side of the wire pressing claw (23) is a drive end connected to the guide slider (22). The guide slider (22) is driven to rise and fall by the power source to drive the wire pressing claw (23) to press and position the sub-line (8).

3. An automatic splicing device for an insulated overhead power line and groove clamp according to claim 2, characterized in that, The power source includes a lifting screw (25) arranged in a plumb line inside the protective shell (1). A positioning pin (211) is horizontally arranged on the screw slide (21) of the lifting screw (25). A guide groove (221) is opened along the length direction on the guide slider (22). The width of the guide groove (221) corresponds to the diameter of the positioning pin (211). The positioning pin (211) is inserted into the guide groove (221) and slides in cooperation with the guide groove (221).

4. The automatic connection device for insulated overhead line parallel trench clamps according to claim 2, characterized in that, Two sets of wire clamps (23) are provided, which are symmetrically arranged on both sides of the wire clamp (6) along the length of the sub-line (8); the driving end of the wire clamp (23) and the guide slider (22) form a detachable fixed structure.

5. The automatic splicing device for the insulating parallel line clamp of the overhead line according to any one of claims 1-4, characterized in that, The wire clamp (3) includes two sets of clamp bases (35) fixed on the protective shell (1). The two clamp bases (35) are symmetrically distributed on both sides of the wire clamp (6). A sliding groove is provided on the clamp base (35) along the horizontal direction. A clamping block (31) is installed in the sliding groove. An elastic unit is installed on the side of the clamp base (35) away from the wire clamp (3). The clamping block (31) is subjected to the action of the elastic unit to elastically clamp the wire clamp (6).

6. An automatic splicing device for an insulated overhead power line and groove clamp according to claim 5, characterized in that, The elastic unit includes a guide rod (32) horizontally mounted on the clamp base (35), the guide rod (32) passing through the clamp block (31) and slidingly engaging with the clamp block (31); the end of the guide rod (32) is provided with a spring seat (34) arranged parallel to the clamp base (35), and a spring is sleeved on the guide rod (32), with the two ends of the spring abutting against the clamp block (31) and the spring seat (34) respectively.

7. An automatic splicing device for an insulated overhead power line and groove clamp according to claim 5, characterized in that, Along the direction close to the wire clamp (6), the width of the clamping end of the clamping block (31) gradually narrows so that the vertical cross section of the clamping block (31) is an isosceles trapezoidal shape. The clamping end of the clamping block (31) abuts against the upper clamping plate (61) and the lower clamping plate (62) of the wire clamp (6).

8. The automatic splicing device for the insulating parallel line clamp of the overhead line according to any one of claims 1-4, characterized in that, The protective shell (1) is provided with a positioning seat (5) for fixing the insulating rod. The positioning seat (5) has a slot in the horizontal direction, and the end of the insulating rod is horizontally inserted into the slot of the positioning seat (5) for positioning.

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