Insulation operating rod indirect live-line lap joint arc extinction switch device
By designing an insulated operating rod to indirectly connect an arc-extinguishing switch with live wires, and using clamps to fix the insulated conductor wires, the problem of unstable connection and safety hazards caused by conductor wire swaying was solved, thus achieving efficient and safe live-line work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, the insulated conductors swing significantly during operation, affecting connection reliability and interfering with work, posing a safety hazard.
An indirect live-line arc-extinguishing switch device with an insulated operating rod was designed, comprising an insulated operating rod, an insulated conductor wire, an insulated clamp, and a fixture. The insulated conductor wire is clamped and fixed to the insulated operating rod by the fixture to prevent large swinging and ensure connection reliability.
It effectively prevents the insulated conductor from swinging significantly during operation, avoids stress on the connection terminals, improves the safety and reliability of the operation, and reduces operation time.
Smart Images
Figure CN224096578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of live-line working technology, and in particular to an arc-extinguishing switch device for indirect live-line connection of an insulated operating rod. Background Technology
[0002] Previously, when replacing disconnectors or drop-out fuse leads on a 10kV line under load without interrupting power, a bucket truck was required to insulate and shield the live line. After shielding, the bucket truck operator would move the truck up and down to attach the upper end of the arc suppression switch to the live conductor and the lower end to the lead of the disconnector or fuse being replaced, thus insulating and shielding both ends of the arc suppression switch. Then, maintaining a safe distance, the operator would move the insulated bucket truck and use an operating rod to close the arc suppression switch. This process was time-consuming, and the proximity to live parts during shielding posed a safety hazard to the workers.
[0003] In existing technologies, the insulated operating rod indirect live-line arc-suppression switch device can ensure safety and reduce operation time. However, during operation, the insulated conductor will swing significantly, interfering with the operation. Moreover, the connection terminals at the ends of the swinging insulated conductor will be subjected to stress, affecting the reliability of the connection. Therefore, existing technologies still have shortcomings and deficiencies. Utility Model Content
[0004] The purpose of this invention is to provide an insulated operating rod indirect live-connected arc-extinguishing switch device, which solves the technical problems of the existing technology where the insulated conductor swings significantly during operation, interfering with the operation, and the connection terminals at the ends of the swinging insulated conductor are subjected to force, affecting the reliability of the connection.
[0005] To achieve the above objectives, this utility model provides an insulated operating rod indirect live-line arc-extinguishing switch device, comprising:
[0006] An insulating operating rod is provided with an arc suppression switch fixed on one side of the insulating operating rod, and a first fixing member is connected to one end of the arc suppression switch. The first fixing member is used to connect to the overhead line.
[0007] An insulated conductor is connected at one end to the arc-suppressing switch via a connecting terminal, and at the other end to a second fixing member, which is used to connect to a branch knife switch or a drop-out fuse.
[0008] An insulating clamp and a fixture are provided, wherein the fixture is fixedly mounted on the insulating clamp, the insulating clamp is fixedly connected to the insulating operating rod, and the fixture holds the insulating guide wire.
[0009] Preferably, the clamp includes a fixing part and two clamping parts disposed on the fixing part. The clamping part includes a connecting section, a clamping section and a limiting section connected in sequence. The connecting section is fixedly disposed on the fixing part. The angle between the connecting section and the clamping section is an obtuse angle, and the angle between the clamping section and the limiting section is an acute angle.
[0010] Preferably, the end of the limiting segment that is away from the clamping segment is bent toward the clamping segment.
[0011] Preferably, the insulating clamp is provided with a threaded hole, and a fixing bolt is threaded into the threaded hole.
[0012] Preferably, the insulating operating rod is fitted with an insulating dust cover.
[0013] Preferably, the insulating operating rod is provided with a limiting groove along the circumference, and the insulating dust cover is held in the limiting groove.
[0014] Preferably, the first fixing member includes a C-shaped clamp, a first screw, and a first clamping block. The bottom end of the first screw is inserted into the top end of the insulating operating rod and connected by a fixing pin. The top end of the first screw passes through the bottom of the C-shaped clamp and enters the inner cavity of the C-shaped clamp. The first clamping block is rotatably disposed on the top end of the first screw. The first clamping block is slidably connected to the C-shaped clamp. A guide portion is provided on one side of the first clamping block.
[0015] Preferably, it further includes a hanging ring connecting the first fixing member and the arc suppression switch. The hanging ring is horseshoe-shaped, with its lower end connected to the arc suppression switch and its upper end abutting against a limiting block provided on one side of the first fixing member.
[0016] Preferably, the second fixing member includes a second C-shaped clamp, a second screw, and a second clamping block. The bottom end of the second screw extends into the inner cavity of the second C-shaped clamp, and the second clamping block is rotatably disposed at the bottom end of the second screw. The second clamping block is slidably connected to the second C-shaped clamp.
[0017] Preferably, the lower end of the insulating operating rod is provided with an anti-slip insulating layer.
[0018] Compared to the aforementioned background technology, the insulating operating rod indirect live-line arc-suppression switch device provided by this utility model has one end of the arc-suppression switch connected to a first fixing member, the first fixing member connected to the live main line of the overhead line, one end of the insulating guide wire connected to the arc-suppression switch, and the other end of the insulating guide wire connected to a second fixing member, the second fixing member connected to the lead wire of the branch line knife switch or drop-out fuse. The clamp holds the insulating guide wire and fixes it to the insulating operating rod through an insulating clamp, thereby fixing the insulating guide wire and preventing it from swinging significantly during operation, avoiding interference with the operation. At the same time, it avoids stress on the connection terminals at the end of the insulating guide wire due to significant swinging, ensuring connection reliability. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0020] Fig. 1 This is a schematic diagram of the structure of the insulated operating rod indirect live-connected arc-extinguishing switch device provided in an embodiment of the present invention;
[0021] Fig. 2 This is a schematic diagram of the clamp and insulating clamp in the insulated operating rod indirect live-connected arc-extinguishing switch device provided in this embodiment of the utility model.
[0022] Figs. 1-2 Chinese reference numerals: 10, Insulated operating rod; 11, Insulated dust cover; 12, Anti-slip insulating layer; 20, Insulated guide wire; 21, Connecting terminal; 30, Insulated clamp; 31, Fixing bolt; 40, Clamp; 41, Fixing part; 42, Clamping part; 421, Connecting section; 422, Clamping section; 423, Limiting section; 50, Arc extinguishing switch; 51, Hanging ring; 60, First fixing component; 61, First C-type clamp; 62, First screw; 63, First clamping block; 631, First guide part; 64, Fixing pin; 70, Second fixing component; 71, Second C-type clamp; 72, Second screw; 73, Second clamping block; 731, Second guide part. Detailed Implementation
[0023] 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.
[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] This utility model provides an indirect live-connected arc-extinguishing switch device with an insulated operating rod. The insulated conductor 20 will not swing significantly during operation, avoiding stress on the connecting terminal 21 at the end of the insulated conductor 20 due to swing, thus ensuring connection reliability.
[0026] Please refer to this as well. Figs. 1-2 The insulated operating rod indirect live-connected arc-extinguishing switch device provided by this utility model includes an insulated operating rod 10, an insulated guide wire 20, an insulated clamp 30, and a fixture 40.
[0027] An arc-suppression switch 50 is fixedly mounted on one side of the insulating operating rod 10. One end of the arc-suppression switch 50 is connected to a first fixing member 60, which is used to connect to an overhead line. The arc-suppression switch 50 is a switching device specifically designed to quickly cut off the current when an electric arc occurs in a circuit. Its main function is to eliminate or reduce the generation and duration of the electric arc, thereby preventing the electric arc from damaging the circuit and equipment.
[0028] The insulated conductor 20 is a special electrical equipment accessory used in power systems. It possesses insulating properties and is primarily used to isolate current and protect equipment and personnel. The insulated conductor 20 comprises a conductor, an insulation layer, and a protective layer, enabling stable operation under high voltage and high current conditions. One end of the insulated conductor 20 is connected to the arc suppression switch 50 via a connecting terminal 21, and the other end is connected to a second fixing member 70, which is used to connect to a branch line switch or a drop-out fuse.
[0029] A clamp 40 is fixedly mounted on an insulating clamp 30, which is fixedly connected to an insulating operating rod 10. The clamp 40 holds the insulating conductor 20. In this embodiment, the connecting terminal 21 is located on the lower side of the arc-suppression switch 50 and is made of copper, providing good conductivity. The insulating clamp 30 is made of PP polypropylene insulating material, and the insulating operating rod 10 can be made of epoxy resin.
[0030] In use, one end of the arc-suppression switch 50 is connected to the first fixing member 60, which is connected to the main energized conductor of the overhead line. One end of the insulated conductor 20 is connected to the arc-suppression switch 50, and the other end is connected to the second fixing member 70, which is connected to the lead wire of the branch switch or drop-out fuse. Closing the arc-suppression switch 50 forms a circuit. The clamp 40 holds the insulated conductor 20 and fixes it to the insulated operating rod 10 with a clamp. This arrangement fixes the insulated conductor 20, preventing it from swinging excessively during operation and interfering with the work. It also prevents the connecting terminal 21 at the end of the insulated conductor 20 from being stressed due to excessive swinging, ensuring reliable connection.
[0031] Please refer to this as well. Figs. 1-2 The clamp 40 includes a fixing part 41 and two clamping parts 42 disposed on the fixing part 41. The clamping part 42 includes a connecting section 421, a clamping section 422 and a limiting section 423 connected in sequence. The connecting section 421 is fixedly disposed on the fixing part 41. The angle between the connecting section 421 and the clamping section 422 is an obtuse angle, and the angle between the clamping section 422 and the limiting section 423 is an acute angle.
[0032] An insulating clamp 30 is fixed to an insulating operating rod 10. A fixing part 41 of a clamp 40 is fixed to the insulating clamp 30. A connecting section 421, a clamping section 422, and a limiting section 423 form a clamping space. The insulating guide wire 20 is located within this clamping space. The clamping section 422 and the limiting section 423 clamp and fix the insulating guide wire 20, thereby preventing the insulating guide wire 20 from swinging significantly during operation. Preferably, the clamp 40 clamps the middle portion of the insulating guide wire 20.
[0033] Please refer to this as well. Figs. 1-2 The end of the limiting section 423 that is away from the clamping section 422 is bent toward the clamping section 422. This setting can limit and block the insulated conductor 20, preventing the insulated conductor 20 from coming out of the clamping space.
[0034] Please refer to this as well. Figs. 1-2 The insulating clamp 30 has a threaded hole, and a fixing bolt 31 is threaded into the threaded hole. The fixing bolt 31 is made of PP polypropylene insulating material. After the insulating clamp 30 grips the insulating operating rod 10, it is fixed by passing the fixing bolt 31 through the threaded hole, thereby fixing the insulating clamp 30 to the insulating operating rod 10. The insulating clamp 30 can be fixed in different positions on the insulating operating rod 10 according to specific usage to ensure that the insulating guide wire 20 does not swing significantly. After adjustment, it can be re-fixed with the fixing bolt 31, making it convenient to use.
[0035] Please refer to this as well. Figs. 1-2The insulating operating rod 10 is covered with an insulating dust cover 11, which is made of insulating material. Optionally, the insulating dust cover 11 is located one meter from the top of the insulating operating rod 10. On the one hand, the insulating dust cover 11 serves to prevent dust from falling during operation; on the other hand, the insulating dust cover 11 serves as a marker, reminding operators not to cross the insulating dust cover 11 during operation, thereby maintaining a sufficient safe distance from live parts and ensuring safe use.
[0036] Please refer to this as well. Figs. 1-2 The insulating operating rod 10 is provided with a limiting groove along the circumference. The insulating dust cover 11 is held in the limiting groove. The limiting groove holds and fixes the insulating dust cover 11 to prevent it from sliding on the insulating operating rod 10. This prevents the distance between the operator and the live part from becoming too small due to the change in the position of the insulating dust cover 11, and further ensures safety in use.
[0037] Please refer to this as well. Figs. 1-2 The first fixing member 60 includes a first C-shaped clamp 61, a first screw 62, and a first clamping block 63. The bottom end of the first screw 62 is inserted into the top end of the insulating operating rod 10 and connected by a fixing pin 64. The top end of the first screw 62 passes through the bottom of the first C-shaped clamp 61 and enters the inner cavity of the first C-shaped clamp 61. The first clamping block 63 is rotatably disposed on the top end of the first screw 62 and is slidably connected to the first C-shaped clamp 61. A first guide portion 631 is provided on one side of the first clamping block 63.
[0038] The top of the insulating operating rod 10 has a hollow interior. The bottom end of the first screw 62 is inserted into the top of the insulating operating rod 10, and the first screw 62 is detachably connected to the insulating operating rod 10 by a fixing pin 64. Specifically, the first screw 62 passes through the bottom of the first C-shaped clamp 61 and is threadedly connected to the first C-shaped clamp 61. The first clamping block 63 is rotatably disposed at one end of the first screw 62 located in the inner cavity of the first C-shaped clamp 61. As the first clamping block 63 slides, the first clamping block 63 and the first C-shaped clamp 61 cooperate to clamp and fix the live main conductor of the overhead line. The middle part of the first C-shaped clamp 61 is limited between the first guide portions 631 provided on one side of the first clamping block 63, and the first guide portions 631 play a limiting and guiding role in the sliding of the first clamping block 63.
[0039] Please refer to this as well. Figs. 1-2 The insulating operating rod indirect live-connected arc-extinguishing switch device provided by this utility model also includes a hanging ring 51 connecting the first fixing member 60 and the arc-extinguishing switch 50. The hanging ring 51 is horseshoe-shaped, with the lower end of the hanging ring 51 connected to the arc-extinguishing switch 50 and the upper end abutting against a limiting block provided on one side of the first fixing member 60.
[0040] The hanging ring 51 is rotatably connected to the arc suppression switch 50, and the upper end of the hanging ring 51 abuts against a limiting block provided on one side of the first fixing member 60. The hanging ring 51 is made of brass and has good electrical conductivity.
[0041] Please refer to this as well. Figs. 1-2 The second fixing member 70 includes a second C-shaped clamp 71, a second screw 72, and a second clamping block 73. The bottom end of the second screw 72 extends into the inner cavity of the second C-shaped clamp 71, and the second clamping block 73 is rotatably disposed at the bottom end of the second screw 72. The second clamping block 73 is slidably connected to the second C-shaped clamp 71.
[0042] Specifically, the second screw 72 is threadedly connected to the second C-shaped clamp 71. The second clamping block 73 is rotatably disposed at one end of the second screw 72 located within the cavity of the second C-shaped clamp 71. As the second clamping block 73 slides, it cooperates with the second C-shaped clamp 71 to clamp and fix the lead wire of the branch switch or drop-out fuse. A second guide portion 731 is provided on one side of the second C-shaped clamp 71. The middle part of the second C-shaped clamp 71 is engaged between the second guide portions 731 provided on one side of the second clamping block 73. The second guide portions 731 provide a limiting and guiding function for the sliding of the second clamping block 73.
[0043] Optionally, a fixed ball is fixedly connected to one end of the second screw 72, and the second clamping block 73 has an inner cavity in which the fixed ball is accommodated and confined. This arrangement allows the second clamping block 73 to be rotatably connected to the second screw 72. The first screw 62 and the first clamping block 63 can also be rotatably connected by the above structure.
[0044] Please refer to this as well. Figs. 1-2 Figs. 1-2 The lower end of the insulated operating rod 10 is provided with an anti-slip insulating layer 12. When the operator uses it, they hold the lower end of the insulated operating rod 10. The anti-slip insulating layer 12 increases friction, making it less likely to slip. In this embodiment, the anti-slip insulating layer 12 is insulating paint, preferably red, to remind the operator that the end of the insulated operating rod 10 with the insulating paint is the gripping part.
[0045] The insulated operating rod indirect live-line connection arc suppression switch device provided by this utility model allows for the connection and disconnection of the arc suppression switch 50 simply by having the boom truck stop in a suitable position and using the insulated operating rod 10 to connect the arc suppression switch 50 to the main line. The entire process requires no shielding, reducing the number of times the boom truck moves up and down and the shielding process, greatly reducing the operation time and keeping the operators away from live parts, thus improving the safety during the operation.
[0046] One end of the arc-suppression switch 50 is connected to the first fixing member 60, which is connected to the main energized conductor of the overhead line. One end of the insulated conductor 20 is connected to the arc-suppression switch 50, and the other end is connected to the second fixing member 70, which is connected to the lead wire of the branch switch or drop-out fuse. Closing the arc-suppression switch 50 forms a circuit. The clamp 40 holds the insulated conductor 20 and fixes it to the insulated operating rod 10 through the insulating clamp 30. This arrangement fixes the insulated conductor 20, preventing it from swinging significantly during operation and interfering with the work. It also prevents the connecting terminal 21 at the end of the insulated conductor 20 from being stressed due to large swings, ensuring reliable connection.
[0047] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A live-line arc-extinguishing switch device with insulated operating rod indirect connection, characterized in that, include: An insulating operating rod is provided with an arc-suppressing switch fixed on one side of the insulating operating rod, and a first fixing member is connected to one end of the arc-suppressing switch. The first fixing member is used to connect to an overhead line. An insulated conductor is connected at one end to the arc-suppressing switch via a connecting terminal, and at the other end to a second fixing member, which is used to connect to a branch knife switch or a drop-out fuse. An insulating clamp and a fixture, wherein the fixture is fixedly mounted on the insulating clamp, the insulating clamp is fixedly connected to the insulating operating rod, and the fixture holds the insulating guide wire; The clamp includes a fixing part and two clamping parts disposed on the fixing part. The clamping part includes a connecting section, a clamping section and a limiting section connected in sequence. The connecting section is fixedly disposed on the fixing part. The angle between the connecting section and the clamping section is an obtuse angle, and the angle between the clamping section and the limiting section is an acute angle. The end of the limiting section away from the clamping section is bent toward the clamping section. The first fixing member includes a C-shaped clamp, a first screw, and a first clamping block. The bottom end of the first screw is inserted into the top end of the insulating operating rod and connected by a fixing pin. The top end of the first screw passes through the bottom of the C-shaped clamp and enters the inner cavity of the C-shaped clamp. The first clamping block is rotatably disposed on the top end of the first screw. The first clamping block is slidably connected to the C-shaped clamp. A guide portion is provided on one side of the first clamping block. The top of the insulating operating rod has a hollow structure, and the bottom end of the first screw is inserted into the top of the insulating operating rod. The first screw is detachably connected to the insulating operating rod by a fixing pin. A fixed ball is fixedly connected to one end of the first screw, and the first clamping block has an inner cavity in which the fixed ball is accommodated and confined.
2. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 1, characterized in that, The insulating clamp is provided with a threaded hole, and a fixing bolt is connected to the threaded hole.
3. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 1, characterized in that, The insulating operating rod is covered with an insulating dust cover.
4. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 3, characterized in that, The insulating operating rod is provided with a limiting groove along the circumference, and the insulating dust cover is held in the limiting groove.
5. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 1, characterized in that, It also includes a hanging ring connecting the first fixing member and the arc suppression switch. The hanging ring is horseshoe-shaped, with its lower end connected to the arc suppression switch and its upper end abutting against a limiting block provided on one side of the first fixing member.
6. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 1, characterized in that, The second fixing member includes a second C-shaped clamp, a second screw, and a second clamping block. The bottom end of the second screw extends into the inner cavity of the second C-shaped clamp, and the second clamping block is rotatably disposed at the bottom end of the second screw. The second clamping block is slidably connected to the second C-shaped clamp.
7. The insulated operating rod indirect live-line arc-extinguishing switch device according to claim 1, characterized in that, The lower end of the insulated operating rod is provided with an anti-slip insulating layer.