Arc extinguishing device for live disconnection or connection of distribution network line

Abstract

The invention provides an arc extinguishing device for live disconnection or connection of a distribution network line, which is characterized by comprising a telescopic sleeve rod composed of an outer insulating sleeve and an inner sleeve in the outer insulating sleeve, a high-voltage wire clamp arranged at the top end of the inner sleeve, and a grounding wire clamp arranged at the lower end of the outer insulating sleeve, one end of the double-end wire clamp is a main wire clamp, the other end of the double-end wire clamp is an auxiliary wire clamp, the auxiliary wire clamp comprises an auxiliary fixed chuck and an auxiliary movable chuck, the auxiliary movable chuck is connected with a second clamping mechanism, and the second clamping mechanism is connected with a second clamping driving mechanism; the main wire clamp comprises a main fixed clamping head and a driving clamping head, and the driving clamping head is connected with a first clamping driving mechanism arranged in the outer insulating sleeve. The clamping and loosening of the high-voltage wires can be quickly completed, the quick connection of the device and the two high-voltage wires is realized, the operation difficulty is greatly reduced while the operation efficiency is improved, and the whole operation process is quick, efficient, time-saving and labor-saving.

Description

Technical Field

[0001] The invention provides an arc extinguishing device, in particular to an arc extinguishing device for disconnecting or connecting a distribution network line under power, belonging to the fields of power system and industrial automation. Background Art

[0002] Arc extinguishing rods are mainly used for live operations in power systems, especially when disconnecting and connecting flow lines under power. Its main function is to ensure the safety of operators when performing live operations during the operation and maintenance of the power system. Arc extinguishing rods, through their special structural design, can introduce capacitive current into the main line during operation to avoid the generation of external arc light, thereby ensuring the personal safety of operators. Arc extinguishing rods are usually small in size, light in weight, and easy to operate, which makes them highly practical and convenient in power systems. In addition, arc extinguishing rods can also play a role when single-phase metal grounding occurs on the busbar. Through the action of the arc extinguishing device, the generation of harmonics is avoided to ensure the safe operation of the power grid. The arc extinguishing devices currently used are affected by structural factors, which will lead to problems such as poor connection reliability, difficult operation of the terminal clamps, and easy damage when connecting high-voltage lines. This not only reduces the efficiency of on-site operations of the staff, but also the poor connection reliability will pose a serious threat to the safety of the staff and power equipment. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problems of poor clamping reliability, easy damage, inconvenient clamping operation, low efficiency, etc. in the existing arc extinguishing devices, the present invention provides an arc extinguishing device for live disconnection or connection of distribution network lines.

[0004] The present invention is completed by the following technical scheme: an arc extinguishing device for disconnecting or connecting a distribution network line under power, characterized in that it comprises a telescopic sleeve rod composed of an outer insulating sleeve and an inner sleeve therein, which are sleeved together, and a high-voltage wire clamp arranged at the top of the inner sleeve, and a hook arranged at the lower end of the outer insulating sleeve, wherein the high-voltage wire clamp is a double-headed wire clamp, one end of which is a main wire clamp and the other end is a secondary wire clamp, wherein: The auxiliary clamp comprises an auxiliary fixed clamp and an auxiliary movable clamp, the auxiliary movable clamp is connected to the second clamping mechanism, and the second clamping mechanism is connected to the second clamping drive mechanism; The main line clamp includes a main fixed clamp and an active clamp, and the active clamp is connected to a first clamping drive mechanism arranged in the outer insulating sleeve; The first clamping drive mechanism comprises: a first telescopic rod connected to the active chuck, the lower end of the first telescopic rod is connected to the upper end of the driven rack arranged in the inner sleeve, the lower part of the driven rack is meshed with one side of the transmission gear, the other side of the transmission gear is meshed with the upper part of the active rack arranged in the inner sleeve, and the lower end of the active rack is connected to the outer insulating tube; So that by operating the outer insulating tube to drive the active rack to move downward, the driving transmission gear drives the driven rack, the first telescopic rod and the active clamp to move upward to complete the clamping of the high-voltage line. Conversely, by operating the outer insulating tube to drive the active rack to move upward, the driving transmission gear drives the driven rack, the first telescopic rod and the active clamp to move downward to complete the loosening of the high-voltage line; and the second clamping mechanism is driven by the second clamping drive mechanism to make the auxiliary clamp rise or fall, thereby completing the clamping or loosening of the high-voltage line; the device is quickly connected to the two high-voltage lines, and while improving the operating efficiency, it can quickly extinguish the arc and ensure the safety of power equipment and personnel.

[0005] The main fixed clamp and the auxiliary fixed clamp of the high-voltage line clamp are symmetrically arranged on the top of the vertical clamp rod, and are set as two arc-shaped clamps. The lower end of the vertical clamp rod is respectively provided with a main connecting block and an auxiliary connecting block, wherein: the main connecting block is sleeved on the upper end of the connecting sleeve, the lower end of the connecting sleeve is fixed on the inner sleeve, the connecting sleeve is sleeved on the outer periphery of the first telescopic rod, and the auxiliary connecting block is sleeved on the second clamping mechanism; so that the high-voltage line clamp can clamp the main and auxiliary high-voltage lines at the same time through the cooperation of the two arc-shaped clamps of the main fixed clamp and the auxiliary fixed clamp with the corresponding main and auxiliary movable clamps.

[0006] The upper end of the inner sleeve is coaxially connected to the lower end of the connecting rod, the lower end of the inner sleeve is placed in and extends into the outer insulating tube, the lower end of the outer insulating tube is connected to the hook, and the outer insulating tube ensures the safety of the workers when operating under power; the length of the outer insulating tube is determined according to work needs so as to improve the application range of the arc extinguishing device.

[0007] A mounting plate is provided inside the inner sleeve, a seat bearing matched with the axle of the transmission gear is provided in the middle of the mounting plate, slide grooves are symmetrically provided on both sides of the seat bearing, and the two slide grooves are slidably matched with the corresponding active rack and driven rack, so that the active rack and the driven rack can move smoothly along the slide grooves in the inner sleeve through the slide grooves.

[0008] The lower end of the active rack can be connected to the upper end of the strip connecting plate movably arranged in the inner sleeve. The lower end of the strip connecting plate is connected to the first fixed ring fixed inside the lower end of the inner sleeve through a pull rod, so that when the outer insulating tube is operated to move downward, the pull rod, the strip connecting plate and the active rack are driven downward by the first fixed ring, while driving the transmission gear to rotate, and then driving the driven rack, the first telescopic rod and the active chuck to move upward to complete the clamping of the high-voltage line, otherwise the high-voltage line is released.

[0009] A locking mechanism matched with the first clamping drive mechanism can be provided in the inner sleeve, and the locking mechanism includes: a second fixing ring fixed to the lower end of the inner sleeve, and a fixed rack arranged between the second fixing ring and the mounting plate, and a swing hook hinged in a through hole on the strip connecting plate through a hinge shaft provided with a torsion spring thereon, the arc-shaped hook head of the swing hook is matched with the fixed rack, and the pull rod connected with the active rack and the lower end of the strip connecting plate extends downward through the second fixing ring and is connected to the first fixing ring, so that the active rack and the driven rack can be matched with the fixed rack through the swing hook, and the locking of the main fixed chuck and the active chuck after moving up or down is realized, thereby realizing the locking between the main fixed chuck and the active chuck, ensuring that the main fixed chuck and the active chuck firmly clamp and connect the main high-voltage line, and because the swing hook adopts an arc-shaped hook head, the swing hook can be disengaged from the fixed rack by manpower, so that the main line chuck and the active chuck can be loosened and separated from the main high-voltage line.

[0010] The second clamping mechanism includes: a vertical sleeve whose upper end is placed in the second connecting block and whose lower end extends downward, a second telescopic rod movably provided in the vertical sleeve, the upper end of the second telescopic rod is screwed to the lower end of the screw, the upper end of the screw is screwed to the auxiliary movable clamp, the auxiliary movable clamp is matched with the auxiliary fixed clamp on the same side, the lower end of the second telescopic rod extends downward through the vertical sleeve and is connected to the second clamping drive mechanism, so that the second telescopic rod can be driven up and down by the second clamping drive mechanism, so that the auxiliary movable clamp and the auxiliary fixed clamp are closed to clamp the auxiliary high-voltage line, or the auxiliary movable clamp and the auxiliary fixed clamp are separated to loosen the auxiliary high-voltage line.

[0011] The second clamping drive mechanism includes: a horizontal handle, a fork arm arranged at the front end of the horizontal handle and extending vertically upward, the upper end of the fork arm is hinged to the lower end of the second telescopic rod through a first hinge shaft, the lower end of the fork arm is connected to the lower ends of the left and right pull rods through the second hinge shaft respectively, and the upper ends of the left and right pull rods are hinged to the lower end of the vertical sleeve through the third hinge shaft respectively, so that the horizontal handle is pressed to make the fork arm drive the second telescopic rod and the auxiliary movable clamp to move downward, so that the auxiliary movable clamp is separated from the auxiliary fixed clamp to loosen the auxiliary high-voltage line, conversely, the horizontal handle is lifted to make the fork arm drive the second telescopic rod and the auxiliary movable clamp to move upward, so that the auxiliary movable clamp and the auxiliary fixed clamp are closed to clamp the auxiliary high-voltage line.

[0012] A spring clip is arranged in the hook, and the spring clip consists of two bow-shaped rods symmetrically arranged in an eight-shaped shape, and is used to hang the arc-extinguishing device on the hanger for fixing when the arc-extinguishing device is stored.

[0013] The present invention has the following advantages and effects: by adopting the above scheme, the high-voltage line clamp is hung on the high-voltage line, and while operating the outer insulating tube to drive the active rack to move downward, the driving transmission gear drives the driven rack, the first telescopic rod and the active clamp to move upward to complete the clamping of the high-voltage line; conversely, while operating the outer insulating tube to drive the active rack to move upward, the driving transmission gear drives the driven rack, the first telescopic rod and the active clamp to move downward to complete the loosening of the high-voltage line; and the second clamping mechanism is driven by the second clamping drive mechanism to make the auxiliary clamp rise or fall, thereby completing the clamping or loosening of the high-voltage line; the device is quickly connected to the two high-voltage lines, and while improving the operating efficiency, the operating difficulty is greatly reduced. The entire operation process is not only fast and efficient, but also time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a front view of the present invention; Figure 2 A schematic diagram of a first clamping mechanism and a second clamping mechanism of the present invention; Figure 3 is a schematic diagram of a first clamping drive mechanism of the present invention; Figure 4 It is a schematic diagram of the locking mechanism of the present invention.

[0016] In the figure, 1, hook, 2, spring clip, 3, outer insulating tube, 4, inner sleeve, 5, high-voltage line clamp, 6, active clamp, 7, main fixed clamp, 8, auxiliary fixed clamp, 9, second clamping mechanism, 10, second clamping drive mechanism, 11, connecting sleeve, 12, main connecting block, 13, vertical clamping rod, 14, first telescopic rod, 17, auxiliary dynamic clamp, 18, screw, 19, second telescopic rod, 20, auxiliary connecting block, 21, vertical sleeve, 22, third hinge shaft , 23. first hinge shaft, 24. fork arm, 25. right pull rod, 26. second hinge shaft, 27. horizontal handle, 28. first fixed ring, 29. pull rod, 30. second fixed ring, 31. locking mechanism, 32. swing hook, 33. active rack, 34. first clamping drive mechanism, 35. transmission gear, 36. driven rack, 37. fixed rack, 38. strip connecting plate, 39. through hole, 40. hinge shaft, 41. mounting plate, 42. slide groove. DETAILED DESCRIPTION

[0017] 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. Example 1

[0018] The arc extinguishing device for live disconnection or connection of a distribution network line provided by the present invention comprises a telescopic sleeve rod composed of an outer insulating sleeve 3 and an inner sleeve 4 therein, which are sleeved together, a high-voltage wire clamp 5 arranged at the top end of the inner sleeve 4, and a hook 1 arranged at the lower end of the outer insulating sleeve 3. The high-voltage wire clamp 5 is a double-headed wire clamp, one end of which is a main wire clamp and the other end is a secondary wire clamp, wherein: The auxiliary clamp includes an auxiliary fixed clamp 8 and an auxiliary movable clamp 17, the auxiliary movable clamp 17 is connected to the second clamping mechanism 9, and the second clamping mechanism 9 is connected to the second clamping drive mechanism 10; The main line clamp includes a main fixed clamp 7 and an active clamp 6, and the active clamp 6 is connected to a first clamping drive mechanism 34 provided in the outer insulating sleeve 3; The first clamping drive mechanism 34 includes: a first telescopic rod 14 connected to the active chuck 6, the lower end of the first telescopic rod 14 is connected to the upper end of the driven rack 36 provided in the inner sleeve 4, the lower part of the driven rack 36 is meshed with one side of the transmission gear 35, and the other side of the transmission gear 35 is meshed with the upper part of the active rack 33 provided in the inner sleeve 4, and the lower end of the active rack 33 is connected to the outer insulating tube 3, so that by operating the outer insulating tube 3 to drive the active rack 33 to move downward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move upward to complete the clamping of the high-voltage line, and conversely, by operating the outer insulating tube 3 to drive the active rack 33 to move upward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move downward to complete the loosening of the high-voltage line; In addition, the second clamping mechanism 9 is driven by the second clamping driving mechanism 10 to make the auxiliary clamping head rise or fall, thereby completing the clamping or loosening of the high-voltage line; The main fixed clamp 7 and the auxiliary fixed clamp 8 of the high-voltage line clamp 5 are symmetrically arranged at the top of the vertical clamp rod 13, and are set as two arc-shaped clamps. The lower end of the vertical clamp rod 13 is respectively provided with a main connecting block 12 and an auxiliary connecting block 20, wherein: the main connecting block 12 is sleeved on the upper end of the connecting sleeve 11, the lower end of the connecting sleeve 11 is fixed on the inner sleeve 4, the connecting sleeve 11 is sleeved on the outer periphery of the first telescopic rod 14, and the auxiliary connecting block 20 is sleeved on the second clamping mechanism 9; so that the high-voltage line clamp 5 can clamp the main and auxiliary high-voltage lines at the same time through the cooperation of the two arc-shaped clamps of the main fixed clamp 7 and the auxiliary fixed clamp 8 with the corresponding main and auxiliary movable clamps 6 and 17; The upper end of the inner sleeve 4 is coaxially connected to the lower end of the connecting rod 11, and the lower end of the inner sleeve 4 is placed in and extends into the outer insulating tube 3. The lower end of the outer insulating tube 3 is connected to the hook 1 to ensure the safety of the staff during live operation; the length of the outer insulating tube 3 is set to 1.5m, and the specific length is determined according to the work needs, so as to improve the application range of the arc extinguishing device; A mounting plate 41 is provided inside the inner sleeve 4. A bearing seat is provided in the middle of the mounting plate 41 to match the axle of the transmission gear 35. Slide grooves 42 are symmetrically provided on both sides of the bearing seat. The two slide grooves 42 are slidably matched with the corresponding active rack 33 and the driven rack 36, so that the active rack 33 and the driven rack 36 can move smoothly along the slide grooves 42 in the inner sleeve 4 through the slide grooves 42. The lower end of the active rack 33 can be connected to the upper end of the strip connecting plate 38 movably arranged in the inner sleeve 4, and the lower end of the strip connecting plate 38 is connected to the first fixed ring 28 fixed inside the lower end of the inner sleeve 4 through the pull rod 29, so that when the outer insulating tube 3 is operated to move downward, the pull rod 29, the strip connecting plate 38 and the active rack 33 are driven downward by the first fixed ring 28, while driving the transmission gear 35 to rotate, and then driving the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move upward to complete the clamping of the high-voltage line, otherwise the high-voltage line is released; The inner sleeve 4 may be provided with a locking mechanism 31 matched with the first clamping drive mechanism 34, and the locking mechanism 31 includes: a second fixing ring 30 fixed to the lower end of the inner sleeve 4, and a fixed rack 37 arranged between the second fixing ring 30 and the mounting plate 41, and a swing hook 32 hingedly connected to the through hole 39 on the strip connecting plate 38 through a hinge shaft 40 with a torsion spring, the arc-shaped hook head of the swing hook 32 is matched with the fixed rack 37, and the pull rod 29 connected to the lower end of the active rack 33 and the strip connecting plate 38 passes through The second fixing ring 30 extends downward and is connected to the first fixing ring 28, so as to be matched with the fixed rack 37 through the swing hook 32, and the active rack 33 and the driven rack 36 are locked after moving up or down, thereby realizing the locking between the main fixed clamp 7 and the active clamp 6, ensuring that the main fixed clamp 7 and the active clamp 6 firmly clamp and connect the main high-voltage line. Since the swing hook 32 adopts an arc-shaped hook head, the swing hook 32 can be disengaged from the fixed rack 37 by manpower, so that the main line clamp 7 and the active clamp 6 can be loosened and separated from the main high-voltage line; The second clamping mechanism 9 includes: a vertical sleeve 21 whose upper end is placed in the second connecting block 20 and whose lower end extends downward, a second telescopic rod 19 is movably arranged in the vertical sleeve 21, the upper end of the second telescopic rod 19 is screwed to the lower end of the screw 18, the upper end of the screw 18 is screwed to the auxiliary movable clamp 17, the auxiliary movable clamp 17 is matched with the auxiliary fixed clamp 8 on the same side, the lower end of the second telescopic rod 19 extends downward through the vertical sleeve 21 and is connected to the second clamping drive mechanism 10, so that the second telescopic rod 19 is driven by the second clamping drive mechanism 10 to move up and down, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line, or the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are separated to loosen the auxiliary high-voltage line; The second clamping drive mechanism 10 includes: a horizontal handle 27, a fork arm 24 arranged at the front end of the horizontal handle 27 and extending vertically upward, the upper end of the fork arm 24 is hinged to the lower end of the second telescopic rod 19 through the first hinge shaft 23, the lower end of the fork arm 24 is connected to the lower ends of the left and right pull rods 25 through the second hinge shaft 26, and the upper ends of the left and right pull rods 25 are respectively hinged to the lower end of the vertical sleeve 21 through the third hinge shaft 22, so that the fork arm 24 drives the second telescopic rod 19 and the auxiliary movable clamp 17 to move downward by pressing the horizontal handle 27, so that the auxiliary movable clamp 17 is separated from the auxiliary fixed clamp 8 to release the auxiliary high-voltage line, and conversely, the horizontal handle 27 is lifted to drive the fork arm 24 to drive the second telescopic rod 19 and the auxiliary movable clamp 17 to move upward, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line; A spring clip 2 is provided inside the hook 1. The spring clip 2 is composed of two bow-shaped rods symmetrically arranged in an eight-shaped shape. When the arc extinguishing device is stored, the arc extinguishing device is hung on the hanger for fixing. Example 2

[0019] The arc extinguishing device for live disconnection or connection of a distribution network line provided by the present invention comprises a telescopic sleeve rod composed of an outer insulating sleeve 3 and an inner sleeve 4 therein, which are sleeved together, a high-voltage wire clamp 5 arranged at the top end of the inner sleeve 4, and a hook 1 arranged at the lower end of the outer insulating sleeve 3. The high-voltage wire clamp 5 is a double-headed wire clamp, one end of which is a main wire clamp and the other end is a secondary wire clamp, wherein: The auxiliary clamp includes an auxiliary fixed clamp 8 and an auxiliary movable clamp 17, the auxiliary movable clamp 17 is connected to the second clamping mechanism 9, and the second clamping mechanism 9 is connected to the second clamping drive mechanism 10; The main line clamp includes a main fixed clamp 7 and an active clamp 6, and the active clamp 6 is connected to a first clamping drive mechanism 34 provided in the outer insulating sleeve 3; The first clamping drive mechanism 34 includes: a first telescopic rod 14 connected to the active chuck 6, the lower end of the first telescopic rod 14 is connected to the upper end of the driven rack 36 provided in the inner sleeve 4, the lower part of the driven rack 36 is meshed with one side of the transmission gear 35, and the other side of the transmission gear 35 is meshed with the upper part of the active rack 33 provided in the inner sleeve 4, and the lower end of the active rack 33 is connected to the outer insulating tube 3, so that by operating the outer insulating tube 3 to drive the active rack 33 to move downward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move upward to complete the clamping of the high-voltage line, and conversely, by operating the outer insulating tube 3 to drive the active rack 33 to move upward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move downward to complete the loosening of the high-voltage line; In addition, the second clamping mechanism 9 is driven by the second clamping driving mechanism 10 to make the auxiliary clamping head rise or fall, thereby completing the clamping or loosening of the high-voltage line; The main fixed clamp 7 and the auxiliary fixed clamp 8 of the high-voltage line clamp 5 are symmetrically arranged at the top of the vertical clamp rod 13, and are set as two arc-shaped clamps. The lower end of the vertical clamp rod 13 is respectively provided with a main connecting block 12 and an auxiliary connecting block 20, wherein: the main connecting block 12 is sleeved on the upper end of the connecting sleeve 11, the lower end of the connecting sleeve 11 is fixed on the inner sleeve 4, the connecting sleeve 11 is sleeved on the outer periphery of the first telescopic rod 14, and the auxiliary connecting block 20 is sleeved on the second clamping mechanism 9; so that the high-voltage line clamp 5 can clamp the main and auxiliary high-voltage lines at the same time through the cooperation of the two arc-shaped clamps of the main fixed clamp 7 and the auxiliary fixed clamp 8 with the corresponding main and auxiliary movable clamps 6 and 17; The upper end of the inner sleeve 4 is coaxially connected to the lower end of the connecting rod 11, and the lower end of the inner sleeve 4 is placed in and extends into the outer insulating tube 3. The lower end of the outer insulating tube 3 is connected to the hook 1 to ensure the safety of the staff during live operation; the length of the outer insulating tube 3 is set to 1.5m, and the specific length is determined according to the work needs, so as to improve the application range of the arc extinguishing device; A mounting plate 41 is provided inside the inner sleeve 4. A bearing seat is provided in the middle of the mounting plate 41 to match the axle of the transmission gear 35. Slide grooves 42 are symmetrically provided on both sides of the bearing seat. The two slide grooves 42 are slidably matched with the corresponding active rack 33 and the driven rack 36, so that the active rack 33 and the driven rack 36 can move smoothly along the slide grooves 42 in the inner sleeve 4 through the slide grooves 42. The lower end of the active rack 33 is connected to the first fixed ring 28 fixed inside the lower end of the inner sleeve 4, so that when the outer insulating tube 3 is operated to move downward, the first fixed ring 28 drives the active rack 33 to move downward, while driving the transmission gear 35 to rotate, and then drives the driven rack 36, the first telescopic rod 14 and the active clamp 6 to move upward to complete the clamping of the high-voltage line, otherwise the high-voltage line is released; The inner sleeve 4 may be provided with a locking mechanism 31 matched with the first clamping drive mechanism 34, and the locking mechanism 31 includes: a second fixing ring 30 fixed to the lower end of the inner sleeve 4, and a fixed rack 37 arranged between the second fixing ring 30 and the mounting plate 41, and a swing hook 32 hingedly connected to the through hole 39 on the strip connecting plate 38 through a hinge shaft 40 with a torsion spring, the arc-shaped hook head of the swing hook 32 is matched with the fixed rack 37, and the pull rod 29 connected to the lower end of the active rack 33 and the strip connecting plate 38 passes through The second fixing ring 30 extends downward and is connected to the first fixing ring 28, so as to be matched with the fixed rack 37 through the swing hook 32, and the active rack 33 and the driven rack 36 are locked after moving up or down, thereby realizing the locking between the main fixed clamp 7 and the active clamp 6, ensuring that the main fixed clamp 7 and the active clamp 6 firmly clamp and connect the main high-voltage line. Since the swing hook 32 adopts an arc-shaped hook head, the swing hook 32 can be disengaged from the fixed rack 37 by manpower, so that the main line clamp 7 and the active clamp 6 can be loosened and separated from the main high-voltage line; The second clamping mechanism 9 includes: a vertical sleeve 21 whose upper end is placed in the second connecting block 20 and whose lower end extends downward, a second telescopic rod 19 is movably arranged in the vertical sleeve 21, the upper end of the second telescopic rod 19 is screwed to the lower end of the screw 18, the upper end of the screw 18 is screwed to the auxiliary movable clamp 17, the auxiliary movable clamp 17 is matched with the auxiliary fixed clamp 8 on the same side, the lower end of the second telescopic rod 19 extends downward through the vertical sleeve 21 and is connected to the second clamping drive mechanism 10, so that the second telescopic rod 19 is driven by the second clamping drive mechanism 10 to move up and down, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line, or the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are separated to loosen the auxiliary high-voltage line; The second clamping drive mechanism 10 includes: a horizontal handle 27, a fork arm 24 arranged at the front end of the horizontal handle 27 and extending vertically upward, the upper end of the fork arm 24 is hinged to the lower end of the second telescopic rod 19 through the first hinge shaft 23, the lower end of the fork arm 24 is connected to the lower ends of the left and right pull rods 25 through the second hinge shaft 26, and the upper ends of the left and right pull rods 25 are respectively hinged to the lower end of the vertical sleeve 21 through the third hinge shaft 22, so that the fork arm 24 drives the second telescopic rod 19 and the auxiliary movable clamp 17 to move downward by pressing the horizontal handle 27, so that the auxiliary movable clamp 17 is separated from the auxiliary fixed clamp 8 to release the auxiliary high-voltage line, and conversely, the horizontal handle 27 is lifted to drive the fork arm 24 to drive the second telescopic rod 19 and the auxiliary movable clamp 17 to move upward, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line; The extended length of the telescopic sleeve is set to 1.8 meters, and the retracted length is set to 1.5 meters. Example 3

[0020] The arc extinguishing device for live disconnection or connection of a distribution network line provided by the present invention comprises a telescopic sleeve rod composed of an outer insulating sleeve 3 and an inner sleeve 4 therein, which are sleeved together, and a high-voltage wire clamp 5 arranged at the top end of the inner sleeve 4. The high-voltage wire clamp 5 is a double-headed wire clamp, one end of which is a main wire clamp and the other end is a secondary wire clamp, wherein: The auxiliary clamp includes an auxiliary fixed clamp 8 and an auxiliary movable clamp 17, the auxiliary movable clamp 17 is connected to the second clamping mechanism 9, and the second clamping mechanism 9 is connected to the second clamping drive mechanism 10; The main line clamp includes a main fixed clamp 7 and an active clamp 6, and the active clamp 6 is connected to a first clamping drive mechanism 34 provided in the outer insulating sleeve 3; The first clamping drive mechanism 34 includes: a first telescopic rod 14 connected to the active chuck 6, the lower end of the first telescopic rod 14 is connected to the upper end of the driven rack 36 provided in the inner sleeve 4, the lower part of the driven rack 36 is meshed with one side of the transmission gear 35, and the other side of the transmission gear 35 is meshed with the upper part of the active rack 33 provided in the inner sleeve 4, and the lower end of the active rack 33 is connected to the outer insulating tube 3, so that by operating the outer insulating tube 3 to drive the active rack 33 to move downward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move upward to complete the clamping of the high-voltage line, and conversely, by operating the outer insulating tube 3 to drive the active rack 33 to move upward, the driving transmission gear 35 drives the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move downward to complete the loosening of the high-voltage line; In addition, the second clamping mechanism 9 is driven by the second clamping driving mechanism 10 to make the auxiliary clamping head rise or fall, thereby completing the clamping or loosening of the high-voltage line; The main fixed clamp 7 and the auxiliary fixed clamp 8 of the high-voltage line clamp 5 are symmetrically arranged at the top of the vertical clamp rod 13, and are set as two arc-shaped clamps. The lower end of the vertical clamp rod 13 is respectively provided with a main connecting block 12 and an auxiliary connecting block 20, wherein: the main connecting block 12 is sleeved on the upper end of the connecting sleeve 11, the lower end of the connecting sleeve 11 is fixed on the inner sleeve 4, the connecting sleeve 11 is sleeved on the outer periphery of the first telescopic rod 14, and the auxiliary connecting block 20 is sleeved on the second clamping mechanism 9; so that the high-voltage line clamp 5 can clamp the main and auxiliary high-voltage lines at the same time through the cooperation of the two arc-shaped clamps of the main fixed clamp 7 and the auxiliary fixed clamp 8 with the corresponding main and auxiliary movable clamps 6 and 17; The upper end of the inner sleeve 4 is coaxially connected to the lower end of the connecting rod 11, and the lower end of the inner sleeve 4 is placed in and extends into the outer insulating tube 3 to ensure the safety of the staff during live operation; the length of the outer insulating tube 3 is set to 1.5m, and the specific length is determined according to the work needs, so as to improve the application range of the arc extinguishing device; A mounting plate 41 is provided inside the inner sleeve 4. A bearing seat is provided in the middle of the mounting plate 41 to match the axle of the transmission gear 35. Slide grooves 42 are symmetrically provided on both sides of the bearing seat. The two slide grooves 42 are slidably matched with the corresponding active rack 33 and the driven rack 36, so that the active rack 33 and the driven rack 36 can move smoothly along the slide grooves 42 in the inner sleeve 4 through the slide grooves 42. The lower end of the active rack 33 can be connected to the upper end of the strip connecting plate 38 movably arranged in the inner sleeve 4, and the lower end of the strip connecting plate 38 is connected to the first fixed ring 28 fixed inside the lower end of the inner sleeve 4 through the pull rod 29, so that when the outer insulating tube 3 is operated to move downward, the pull rod 29, the strip connecting plate 38 and the active rack 33 are driven downward by the first fixed ring 28, while driving the transmission gear 35 to rotate, and then driving the driven rack 36, the first telescopic rod 14 and the active chuck 6 to move upward to complete the clamping of the high-voltage line, otherwise the high-voltage line is released; The second clamping mechanism 9 includes: a vertical sleeve 21 whose upper end is placed in the second connecting block 20 and whose lower end extends downward, a second telescopic rod 19 is movably arranged in the vertical sleeve 21, the upper end of the second telescopic rod 19 is screwed to the lower end of the screw 18, the upper end of the screw 18 is screwed to the auxiliary movable clamp 17, the auxiliary movable clamp 17 is matched with the auxiliary fixed clamp 8 on the same side, the lower end of the second telescopic rod 19 extends downward through the vertical sleeve 21 and is connected to the second clamping drive mechanism 10, so that the second telescopic rod 19 is driven by the second clamping drive mechanism 10 to move up and down, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line, or the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are separated to loosen the auxiliary high-voltage line; The second clamping drive mechanism 10 includes: a horizontal handle 27, a fork arm 24 which is arranged at the front end of the horizontal handle 27 and extends vertically upward, the upper end of the fork arm 24 is hinged to the lower end of the second telescopic rod 19 through a first hinge shaft 23, the lower end of the fork arm 24 is connected to the lower ends of the left and right pull rods 25 through a second hinge shaft 26, and the upper ends of the left and right pull rods 25 are hinged to the lower end of the vertical sleeve 21 through a third hinge shaft 22, so that the horizontal handle 27 is pressed to make the fork arm 24 drive the second telescopic rod 19 and the auxiliary movable clamp 17 to move downward, so that the auxiliary movable clamp 17 is separated from the auxiliary fixed clamp 8 to loosen the auxiliary high-voltage line, conversely, the horizontal handle 27 is lifted to make the fork arm 24 drive the second telescopic rod 19 and the auxiliary movable clamp 17 to move upward, so that the auxiliary movable clamp 17 and the auxiliary fixed clamp 8 are closed to clamp the auxiliary high-voltage line.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An arc extinguishing device for disconnecting or connecting to a distribution network line under power, characterized in that It includes a telescopic sleeve rod composed of an outer insulating sleeve and an inner sleeve which are sleeved together, a high-voltage wire clamp arranged at the top of the inner sleeve, and a hook arranged at the lower end of the outer insulating sleeve. The high-voltage wire clamp is a double-headed wire clamp, one end of which is a main wire clamp and the other end is a secondary wire clamp, wherein: The auxiliary clamp comprises an auxiliary fixed clamp and an auxiliary movable clamp, the auxiliary movable clamp is connected to the second clamping mechanism, and the second clamping mechanism is connected to the second clamping drive mechanism; The main line clamp includes a main fixed clamp and an active clamp, and the active clamp is connected to a first clamping drive mechanism arranged in the outer insulating sleeve; The first clamping drive mechanism includes: a first telescopic rod connected to the active chuck, the lower end of the first telescopic rod is connected to the upper end of a driven rack arranged in the inner sleeve, the lower part of the driven rack is meshed with one side of the transmission gear, and the other side of the transmission gear is meshed with the upper part of the active rack arranged in the inner sleeve, and the lower end of the active rack is connected to the outer insulating tube.

2. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that The main fixed clamp and the auxiliary fixed clamp of the high-voltage line clamp are symmetrically arranged on the top of the vertical clamp rod and are set as two arc-shaped clamps. The lower end of the vertical clamp rod is respectively provided with a main connecting block and an auxiliary connecting block, wherein: the main connecting block is sleeved on the upper end of the connecting sleeve, the lower end of the connecting sleeve is fixed on the inner sleeve, the connecting sleeve is sleeved on the outer periphery of the first telescopic rod, and the auxiliary connecting block is sleeved on the second clamping mechanism.

3. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that The upper end of the inner sleeve is coaxially connected to the lower end of the connecting rod, the lower end of the inner sleeve is placed in and extends into the outer insulating cylinder, and the lower end of the outer insulating cylinder is connected to the hook.

4. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that A mounting plate is provided inside the inner sleeve, a seat bearing matched with the axle of the transmission gear is provided in the middle of the mounting plate, and sliding grooves are symmetrically provided on both sides of the seat bearing, and the two sliding grooves are slidably matched with the corresponding active rack and driven rack.

5. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that The lower end of the active rack can be connected to the upper end of a strip connecting plate movably arranged in the inner sleeve, and the lower end of the strip connecting plate is connected to a first fixing ring fixed inside the lower end of the inner sleeve through a pull rod.

6. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that A locking mechanism matched with the first clamping drive mechanism can be arranged in the inner sleeve, and the locking mechanism includes: a second fixed ring fixed at the lower end of the inner sleeve, and a fixed rack arranged between the second fixed ring and the mounting plate, and a swing hook hinged in the through hole on the strip connecting plate through a hinge shaft with a torsion spring provided thereon, the arc-shaped hook head of the swing hook is matched with the fixed rack, and a pull rod connected to the active rack and the lower end of the strip connecting plate passes through the second fixed ring and extends downward to be connected to the first fixed ring.

7. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that The second clamping mechanism includes: a vertical sleeve whose upper end is placed in the second connecting block and whose lower end extends downward, a second telescopic rod is movably provided in the vertical sleeve, the upper end of the second telescopic rod is screwed to the lower end of the screw, the upper end of the screw is screwed to the auxiliary movable chuck, the auxiliary movable chuck is matched with the auxiliary fixed chuck on the same side, and the lower end of the second telescopic rod extends downward through the vertical sleeve and is connected to the second clamping drive mechanism.

8. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that The second clamping drive mechanism includes: a horizontal handle, a fork arm arranged at the front end of the horizontal handle and extending vertically upward, the upper end of the fork arm is hinged to the lower end of the second telescopic rod through a first hinge shaft, the lower end of the fork arm is connected to the lower ends of the left and right pull rods through the second hinge shaft, and the upper ends of the left and right pull rods are hinged to the lower ends of the vertical sleeves through the third hinge shaft.

9. The arc extinguishing device for disconnecting or connecting to a distribution network line under power according to claim 1, characterized in that A spring clip is arranged in the hook, and the spring clip is composed of two bow-shaped rods symmetrically arranged in an eight-shaped shape.

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