Distribution line section switch device

Abstract

The utility model discloses a section switch device for a distribution line, which comprises a bottom plate, a first insulating terminal is fixedly arranged on one side of the upper end of the bottom plate, a second insulating terminal is fixedly arranged on one side, far away from the first insulating terminal, of the upper end of the bottom plate, a first wiring terminal is fixedly arranged on the upper end of the first insulating terminal, and a second wiring terminal is fixedly arranged on the upper end of the second insulating terminal. The upper end of the first insulation terminal is fixedly provided with a first wiring terminal, the upper end of the second insulation terminal is fixedly provided with a second wiring terminal, the upper end of the first wiring terminal is fixedly provided with a buckle, the upper end of the second insulation terminal is movably provided with a conducting rod through a rotating shaft, and a transmission mechanism for driving the conducting rod to rapidly move is arranged between the bottom plate and the conducting rod. According to the utility model, when the cable is closed or disconnected, the conducting rod can be rapidly driven to move, so that the generation of electric arcs can be reduced to improve the service life and safety of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of sectionalizing switches, in particular to a sectionalizing switch device for a power distribution line. Background Art

[0002] The sectionalizer of the distribution line, also known as the automatic sectionalizer of the line, is an important device for improving the reliability and automation of the distribution network. It is widely used in the branch line or section line of the distribution line, mainly used to isolate circuit faults. This switch does not have the ability to break short-circuit fault current and cannot be used alone as the main protection switch device.

[0003] In the prior art, the sectionalizing switches of such distribution lines should be opened and closed quickly to prevent arcing. However, due to their simple structure, the sectionalizing switches of such distribution lines in the prior art cannot be closed or opened quickly as needed, or they can only be opened quickly but closed slowly. This poses certain safety hazards when used. Therefore, an improved distribution line sectionalizing switch device is needed to address this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a distribution line section switch device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distribution line sectionalizing switch device, comprising a base plate, a first insulating terminal is fixedly arranged on one side of the upper end of the base plate, a second insulating terminal is fixedly arranged on the side of the upper end of the base plate away from the first insulating terminal, a first wiring terminal is fixedly arranged on the upper end of the first insulating terminal, a second wiring terminal is fixedly arranged on the upper end of the second insulating terminal, a buckle is fixedly arranged on the upper end of the first wiring terminal, a conductive rod is movably arranged on the upper end of the second insulating terminal through a rotating shaft, a transmission mechanism for driving the conductive rod to move quickly is arranged between the base plate and the conductive rod, and the transmission mechanism includes an electric push rod, a first telescopic rod, and a third insulating terminal. , a fixed frame, a fixed rod, a second telescopic rod, a limit block, a first spring, and a second spring. An electric push rod is fixedly arranged on one side of the interior of the base plate, and the first telescopic rod is fixedly arranged on the movable end of the electric push rod. A third insulating terminal is fixedly arranged on the upper end of the first telescopic rod, and a fixed frame is fixedly arranged on the upper end of the third insulating terminal. The fixed frame is sleeved on the outer surface of the conductive rod, a fixed rod is fixedly arranged on one side of the electric push rod inside the base plate, and the second telescopic rod is fixedly arranged on the outer surface of the fixed rod, a limit block is fixedly arranged on the movable end of the second telescopic rod, a first spring is sleeved on the outer surface of the first telescopic rod, and a second spring is sleeved on the outer surface of the second telescopic rod.

[0006] Preferably, chamfers are provided on the upper and lower ends of the outer surface of the limit block, and an extrusion block is fixedly provided at one end of the third insulating terminal, which squeezes the chamfer of the limit block through the extrusion block. When the extrusion force reaches a threshold, the extrusion block and the limit block will be dislocated and separated from each other; at this time, the first spring can quickly release its own elastic potential energy to push the third insulating terminal to move up quickly, thereby pushing the conductive rod to rotate around the rotating shaft; so that the conductive rod and the buckle are quickly disconnected; similarly, when the electric push rod is retracted, it will drive the first spring to be pulled out; when the first telescopic rod is extended to the threshold, when the third insulating terminal is pulled again, it is a rigid connection, and the extrusion block will be used to squeeze the chamfer of the limit block; when the extrusion block and the limit block are dislocated again; the first spring can shrink quickly; thereby driving the third insulating terminal to move down quickly; and driving the conductive rod to rotate and move down quickly to contact the buckle.

[0007] Preferably, a groove is formed at one end of the conductive rod, and the groove makes it easier for the conductive rod to be inserted into the buckle, so that the first connecting terminal and the second connecting terminal are electrically connected to each other.

[0008] Preferably, a mounting hole is provided on the outer surface of the upper end of the bottom plate, and the device can be conveniently fixed and installed at a target position through the mounting hole.

[0009] Preferably, wiring holes are provided on the outer surfaces of the first wiring terminal and the second wiring terminal, through which wiring lugs and other cables can be conveniently connected externally.

[0010] Preferably, the elastic coefficient of the second spring is 20 times that of the first spring, the upper end of the first spring is fixedly connected to the third insulating terminal, and the lower end of the first spring is fixedly connected to the movable end of the electric push rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. When the electric push rod of the utility model extends and pushes the first telescopic rod to retract, it will squeeze the first spring. However, since the elastic coefficient of the second spring is much larger than the elastic coefficient of the first spring, it can be roughly understood that the second telescopic rod will not retract at this time; the limit block will always be in contact with the extrusion block and limit it. At this time, the third insulating terminal and the fixed frame cannot move up; until the first telescopic rod is completely retracted; at this time, the electric push rod will extend again and will force the extrusion block to move up, thereby squeezing the second telescopic rod and the second spring to retract; finally, the extrusion block and the limit block are dislocated and separated from each other; at this time, the first spring can quickly release its own elastic potential energy to push the third insulating terminal to move up quickly, thereby pushing the conductive rod to rotate around the rotating shaft; the conductive rod and the buckle are quickly disconnected, so as to prevent the generation of an arc when the device disconnects the circuit.

[0013] 2. According to the utility model, when the circuit needs to be closed, the electric push rod contracts, and the first telescopic rod can be pulled to extend and the first spring can be stretched. At this time, the first spring can continue to accumulate elastic potential energy until the first telescopic rod is fully stretched. At this time, the electric push rod contracts again and will force the extrusion block to move downward. Similarly, the extrusion block can be used to extrude the second telescopic rod and the second spring, so that the extrusion block and the limit block are finally separated from each other. At this time, the first spring can pull the fixed frame and the conductive rod downward through its own elastic potential energy, so that the conductive rod quickly contacts the buckle, which can also prevent the generation of arc when the circuit is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a distribution line section switch device of the utility model;

[0015] Figure 2 This is a disconnected view of a conductive rod in a distribution line section switch device of the utility model;

[0016] Figure 3 This utility model is a distribution line section switch device Figure 2 Magnified view at A in the middle.

[0017] In the figure: 1, bottom plate; 2, first insulating terminal; 3, second insulating terminal; 4, first wiring terminal; 5, second wiring terminal; 6, buckle; 7, conductive rod; 8, electric push rod; 9, first telescopic rod; 10, third insulating terminal; 11, fixed frame; 12, fixed rod; 13, second telescopic rod; 14, limit block; 15, first spring; 16, second spring; 17, extrusion block; 18, groove; 19, mounting hole; 20, wiring hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3The utility model provides a technical solution: a distribution line sectionalizing switch device, comprising a base plate 1, a first insulating terminal 2 is fixedly arranged on one side of the upper end of the base plate 1, a second insulating terminal 3 is fixedly arranged on the side of the upper end of the base plate 1 away from the first insulating terminal 2, a first wiring terminal 4 is fixedly arranged on the upper end of the first insulating terminal 2, a second wiring terminal 5 is fixedly arranged on the upper end of the second insulating terminal 3, a buckle 6 is fixedly arranged on the upper end of the first wiring terminal 4, a conductive rod 7 is movably arranged on the upper end of the second insulating terminal 3 through a rotating shaft, a transmission mechanism for driving the conductive rod 7 to move quickly is arranged between the base plate 1 and the conductive rod 7, and the transmission mechanism includes an electric push rod 8, a first telescopic rod 9, a third insulating terminal 10, a fixed frame 11, a fixed rod 12, a first telescopic rod 13, a second insulating terminal 14, a fixed frame 15, a fixed rod 16, a first telescopic rod 17, a second insulating terminal 18, a fixed frame 19, a fixed rod 20, a first telescopic rod 21, a second insulating terminal 19, a fixed frame 21, a fixed rod 22, a first telescopic rod 23, a second insulating terminal 11, a fixed frame 24, a second insulating terminal 12, a second insulating terminal 13, a first insulating terminal 14, a second insulating terminal 15, a second insulating terminal 16, a first insulating terminal 17, a second insulating terminal 18, a second insulating terminal 19, a second insulating terminal 19, a second insulating terminal 11, a first insulating terminal 12, a second insulating terminal 13, a second insulating terminal 14, a second insulating terminal 15, a first insulating terminal 16, a second insulating terminal 17, a second insulating terminal 18, a first insulating terminal 18, a second insulating terminal 19, a Two telescopic rods 13, a limit block 14, a first spring 15, and a second spring 16. An electric push rod 8 is fixedly arranged on one side of the bottom plate 1. The movable end of the electric push rod 8 is fixedly arranged with a first telescopic rod 9. A third insulating terminal 10 is fixedly arranged on the upper end of the first telescopic rod 9. A fixed frame 11 is fixedly arranged on the upper end of the third insulating terminal 10. The fixed frame 11 is sleeved on the outer surface of the conductive rod 7. A fixed rod 12 is fixedly arranged on one side of the electric push rod 8 inside the bottom plate 1. The outer surface of the fixed rod 12 is fixedly arranged with a second telescopic rod 13. A limit block 14 is fixedly arranged on the movable end of the second telescopic rod 13. The outer surface of the first telescopic rod 9 is sleeved with a first spring 15, and the outer surface of the second telescopic rod 13 is sleeved with a second spring 16.

[0020] The upper and lower ends of the outer surface of the limit block 14 are both chamfered, and an extrusion block 17 is fixedly provided at one end of the third insulating terminal 10. The extrusion block 17 squeezes the chamfer of the limit block 14. When the extrusion force reaches the threshold, the extrusion block 17 and the limit block 14 will be dislocated and separated from each other; at this time, the first spring 15 can quickly release its own elastic potential energy to push the third insulating terminal 10 to move up quickly, so that the conductive rod 7 can be pushed to rotate around the rotating shaft; so that the conductive rod 7 and the buckle 6 are quickly disconnected; similarly, when the electric push rod 8 is retracted, the first spring 15 will be pulled out; when the first telescopic rod 9 is extended to the threshold, and then the third insulating terminal 10 is pulled, it is a rigid connection, and the extrusion block 17 will be used to squeeze the chamfer of the limit block 14; when the extrusion block 17 and the limit block 14 are dislocated again; the first spring 15 can be quickly retracted; thereby, the third insulating terminal 10 can be driven to move down quickly; and the conductive rod 7 can be driven to rotate and move down quickly to contact the buckle 6;

[0021] A groove 18 is formed at one end of the conductive rod 7, and the groove 18 makes it easier for the conductive rod 7 to be inserted into the buckle 6, so that the first wiring terminal 4 and the second wiring terminal 5 are electrically connected to each other;

[0022] The upper outer surface of the bottom plate 1 is provided with a mounting hole 19, through which the device can be conveniently fixed at a target location;

[0023] The first wiring terminal 4 and the second wiring terminal 5 are provided with wiring holes 20 on their outer surfaces, through which wiring lugs and other cables can be conveniently connected externally;

[0024] The elastic coefficient of the second spring 16 is 20 times that of the first spring 15. The upper end of the first spring 15 is fixedly connected to the third insulating terminal 10, and the lower end of the first spring 15 is fixedly connected to the movable end of the electric push rod 8. In other words, the elastic coefficient of the second spring 16 is much greater than the elastic coefficient of the first spring 15. When the electric push rod 8 extends and pushes the first telescopic rod 9 to contract, it will squeeze the first spring 15. However, since the elastic coefficient of the second spring 16 is much greater than the elastic coefficient of the first spring 15, it can be roughly understood that the second telescopic rod 13 will not contract. The limit block 14 will always be in contact with the extrusion block 17 and limit the position; until the first telescopic rod 9 is completely retracted; at this time, the electric push rod will extend again to force the extrusion block 17 to move upward, thereby squeezing the second telescopic rod 13 and the second spring 16 to contract; finally, the extrusion block 17 and the limit block 14 are dislocated and separated from each other; at this time, the first spring 15 can quickly release its own elastic potential energy to push the third insulating terminal 10 to move upward quickly, thereby pushing the conductive rod 7 to rotate around the rotating shaft; so that the conductive rod 7 and the buckle 6 are quickly disconnected, so as to prevent the generation of an arc when the device disconnects the circuit;

[0025] Working principle: When using this device, when it is necessary to disconnect the circuit, the first electric push rod 8 is extended to push the first telescopic rod 9 to retract; when the electric push rod 8 is extended to push the first telescopic rod 9 to retract, the first spring 15 will be squeezed, so that the first spring 15 will store energy, but because the elastic coefficient of the second spring 16 is much larger than the elastic coefficient of the first spring 15, it can be roughly understood that the second telescopic rod 13 will not retract at this time; the limit block 14 will always be in contact with the extrusion block 17 and limit the position, at this time the third insulating terminal 10 and the fixed frame 11 cannot move up; until the first telescopic rod 9 is completely retracted; at this time, the electric push rod 8 will extend again to force the extrusion block 17 to move up, thereby squeezing the second telescopic rod 13 and the second spring 16 to retract; finally, the extrusion block 17 and the limit block 14 are dislocated and separated from each other; at this time, the first spring 15 can quickly release its own elastic potential energy to push the third insulating terminal 10 to move up quickly, thereby pushing the conductive rod 7 to rotate around the rotating shaft; so that the conductive rod 7 and the buckle 6 are quickly disconnected, so as to prevent the generation of an arc when the circuit is disconnected by this device, forming a circuit such as Figure 2 Status shown;

[0026] And as Figure 2As shown, when the circuit needs to be closed, the electric push rod 8 contracts, and at this time, the first telescopic rod 9 can be pulled to extend and the first spring 15 can be stretched. At this time, the first spring 15 can continue to accumulate elastic potential energy; until the first telescopic rod 9 is fully stretched; at this time, the electric push rod 8 contracts again and will force the extrusion block 17 to move downward; similarly, the extrusion block 17 can be used to extrude the second telescopic rod 13 and the second spring 16, and finally the extrusion block 17 and the limit block 14 are dislocated and separated from each other; at this time, the first spring 15 can pull the fixed frame 11 and the conductive rod 7 downward through its own elastic potential energy, so that the conductive rod 7 quickly contacts the buckle 6, thereby preventing an arc from being generated when the circuit is closed.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distribution line section switch device, comprising a base plate (1), characterized in that: A first insulating terminal (2) is fixedly arranged on one side of the upper end of the base plate (1), a second insulating terminal (3) is fixedly arranged on the side of the upper end of the base plate (1) away from the first insulating terminal (2), a first wiring terminal (4) is fixedly arranged on the upper end of the first insulating terminal (2), a second wiring terminal (5) is fixedly arranged on the upper end of the second insulating terminal (3), a buckle (6) is fixedly arranged on the upper end of the first wiring terminal (4), a conductive rod (7) is movably arranged on the upper end of the second insulating terminal (3) via a rotating shaft, a transmission mechanism for driving the conductive rod (7) to move rapidly is arranged between the base plate (1) and the conductive rod (7), the transmission mechanism comprising an electric push rod (8), a first telescopic rod (9), a third insulating terminal (10), a fixed frame (11), a fixed rod (12), a second telescopic rod (13), a limit block (14), a first spring (15), a second spring (16), an electric push rod (8) is fixedly arranged on one side of the bottom plate (1), a first telescopic rod (9) is fixedly arranged on the movable end of the electric push rod (8), a third insulating terminal (10) is fixedly arranged on the upper end of the first telescopic rod (9), a fixed frame (11) is fixedly arranged on the upper end of the third insulating terminal (10), the fixed frame (11) is sleeved on the outer surface of the conductive rod (7), a fixed rod (12) is fixedly arranged on one side of the electric push rod (8) inside the bottom plate (1), a second telescopic rod (13) is fixedly arranged on the outer surface of the fixed rod (12), a limiting block (14) is fixedly arranged on the movable end of the second telescopic rod (13), a first spring (15) is sleeved on the outer surface of the first telescopic rod (9), and a second spring (16) is sleeved on the outer surface of the second telescopic rod (13).

2. A distribution line section switch device according to claim 1, characterized in that: The upper and lower ends of the outer surface of the limit block (14) are both provided with chamfers, and an extrusion block (17) is fixedly provided at one end of the third insulating terminal (10).

3. A distribution line section switch device according to claim 1, characterized in that: A groove (18) is formed at one end of the conductive rod (7).

4. A distribution line section switch device according to claim 1, characterized in that: A mounting hole (19) is provided on the outer surface of the upper end of the bottom plate (1).

5. A distribution line section switch device according to claim 1, characterized in that: Wiring holes (20) are provided on the outer surfaces of the first wiring terminal (4) and the second wiring terminal (5).

6. A distribution line section switch device according to claim 1, characterized in that: The elastic coefficient of the second spring (16) is 20 times that of the first spring (15); the upper end of the first spring (15) is fixedly connected to the third insulating terminal (10); and the lower end of the first spring (15) is fixedly connected to the movable end of the electric push rod (8).

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