Arc extinction switch considering connection stability of drainage wire

Abstract

The invention relates to an arc extinction switch considering drainage wire connection stability, which comprises a wire connection assembly and an operation assembly, a connection and arc extinction assembly is detachably connected below the wire connection assembly, the operation assembly is detachably connected below the connection and arc extinction assembly, and an operation mechanism is arranged in the operation assembly. An insulating shell is installed below the operation assembly, a drainage wire winding clamp is arranged in the insulating shell, the drainage wire winding clamp is connected with the bottom end of an operation mechanism located in the operation assembly through a reset assembly, and one side of the drainage wire winding clamp is connected with the upper end of the reset assembly through an elastic connecting wire. The device has the advantages of reasonable structure, flexible wire hanging mode, stable drainage wire connection and good safety.

Description

Technical Field

[0001] The invention belongs to the technical field of arc extinguishing switches, and in particular relates to an arc extinguishing switch taking into account the connection stability of a drain line. Background Art

[0002] With the continuous improvement of urbanization, the utilization rate of power cables in 10kV distribution networks is also increasing. In order to ensure the power supply reliability of important users, the number of operations such as 10kV live disconnection and connection of unloaded cable lines and overhead line connection leads is increasing. As an important equipment in this operation project, the utilization rate of arc extinguishing switches has increased rapidly. When carrying out operations, in order to avoid arcing, the arc extinguishing switch must be hung first, and then a bypass must be built by hanging an insulated drain line to complete the disconnection and connection of the unloaded cable line and the overhead line connection lead. When traditional arc extinguishing switches are operated, there are the following problems: First, most arc extinguishing switches currently use a rigid connection mechanism to hang on the power supply. On the cable line, the cable surface can be easily damaged or injured due to its own hard material or swinging or rotating with force during use, resulting in safety accidents such as cable leakage; secondly, the connection between the arc extinguishing switch and the insulated drain line is mostly wrapped with an insulating blanket and fixed with an insulating clip. This shielding method is not tight enough; thirdly, the spring arranged inside the arc extinguishing switch is prone to generate instantaneous impact force when storing energy and applying force, which will cause a gap between the drain line and the drain line connecting rod, generating sparks and causing safety problems; therefore, it is very necessary to provide an arc extinguishing switch with a reasonable structure, flexible hanging line method, stable drain line connection, good safety, and taking into account the stability of the drain line connection. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an arc extinguishing switch which has a reasonable structure, a flexible hanging wire method, a stable connection of the drain wire and good safety and takes the connection stability of the drain wire into consideration.

[0004] The objective of the present invention is achieved as follows: an arc extinguishing switch taking into account the stability of the drain wire connection, comprising a wire connection assembly and an operating assembly, a connection and arc extinguishing assembly being detachably connected below the wire connection assembly, an operating assembly being detachably connected below the connection and arc extinguishing assembly, an operating mechanism being arranged inside the operating assembly, an insulating shell being installed below the operating assembly, a drain wire winding clamp being arranged inside the insulating shell, the drain wire winding clamp being connected to the bottom end of the operating mechanism inside the operating assembly through a reset assembly, and one side of the drain wire winding clamp being connected to the upper end of the reset assembly through an elastic connecting wire.

[0005] The wire connection assembly includes a main body and a flexible clamp, wherein a slot is longitudinally opened inside the main body, a threaded rod is arranged inside the main body, a rubber handle threadedly connected to the threaded rod is arranged at the bottom end of the main body, and a positioning pin rod with both ends passing through the slot is arranged at the upper end of the threaded rod inside the main body.

[0006] The main body is provided with a top end on the top, a limiting pin rod is provided inside the top end, the flexible clamp is located above the top end, and the free end of the flexible clamp is fixedly connected with the two ends of the positioning pin rod after passing through the limiting pin rod.

[0007] The connection and arc extinguishing assembly includes an upper connector and a lower connector. When the lower connector is moved by an operating mechanism so that the lower connector and the upper connector are connected or separated, the elastic connecting wire undergoes elastic changes and the drain wire winding fixture remains stationary relative to the insulating shell.

[0008] The upper connector includes a connecting female head, a connecting sleeve is installed on the outside of the connecting female head, a polishing female sleeve is arranged at the lower part of the connecting sleeve, an arc extinguisher is arranged above the polishing female sleeve, and the arc extinguisher is connected to the arc extinguishing cavity arranged inside the connecting female head; a connecting chamber is arranged inside the arc extinguishing cavity, a connecting column is movably installed inside the connecting chamber, and a stop spring is arranged on the top of the connecting column; an upper threaded opening connected to the threaded rod is arranged on the top of the connecting female head.

[0009] The lower connector includes a connecting male head corresponding to the connecting female head, a polishing male head plugged into the inner wall of the polishing female sleeve is arranged above the connecting male head, a top column penetrating the polishing male head and penetrating into the connecting sleeve to contact the connecting column is arranged inside the connecting male head, the top column is connected to the polishing male head through a plurality of O-rings arranged up and down on its outside, and a pre-tightening spring is provided on the outer part of the top column located inside the connecting male head; a lower threaded opening connected to the operating mechanism is arranged at the bottom of the connecting male head.

[0010] The operating mechanism includes a base plate, and longitudinal linear slides are provided at both upper and lower ends of one side of the base plate, and the longitudinal linear slides are connected by a conductive rod, and the upper end of the conductive rod is connected to the lower threaded opening; a mounting plate is provided below the conductive rod, and the mounting plate is connected to the longitudinal linear slide located on the upper side of the base plate through a tension spring, and teeth are provided on one side of the upper part of the conductive rod; a transverse linear slide is provided on the upper left side of the base, and a linear drive is provided on the left side of the transverse linear slide, and a stop ratchet is provided inside the transverse linear slide, and one end of the stop ratchet is connected to the linear drive, and the other end is engaged with the teeth; a compression spring is provided on the outer sleeve of the stop ratchet.

[0011] The drainage wire winding fixture comprises an upper clamping plate and a lower clamping plate, wherein shaft sleeves are arranged inside the upper clamping plate and the lower clamping plate, and a connecting rod connected to one end of the elastic connecting wire is installed on one side above the lower clamping plate.

[0012] The reset assembly includes a pull column, above which is provided a winding shaft penetrating a shaft sleeve, an upper clamping plate and a lower clamping plate, a spring is installed outside the portion of the winding shaft above the lower clamping plate, a nut is installed on the top of the spring, and the nut is connected to the lower end of the conductive rod.

[0013] Beneficial effects of the present invention: the present invention is an arc extinguishing switch that takes into account the stability of the connection of the drain line. During use, a wire connecting mechanism is arranged on the top of the present invention. The wire connecting mechanism is connected to the cable through a flexible clamp, and the tightness of the connection between the flexible clamp and the cable can be adjusted through a rubber handle. The flexible hanging method is adopted. On the one hand, the connection with the cable is relatively tight, ensuring the stability and reliability of the device during use. On the other hand, it can effectively avoid the hard clamp from damaging the cable surface and causing the possible disadvantage of leakage, thereby greatly improving safety. The operating component and the wire connecting component are connected through a connecting and arc extinguishing component, and an electrical connection is achieved through the upper connector and the lower connector of the connecting and arc extinguishing component. The arc extinguisher and the arc extinguishing cavity in the upper connector are used to achieve effective arc extinguishing when the top column is connected to the connecting column, thereby ensuring safety. The reset component of the present invention is connected to the operating mechanism, and the drain line winding clamp The elastic connecting wire is connected to the upper end of the reset component, and when the conductive rod is moved by the operating mechanism to connect or separate the lower connector and the upper connector, the elastic connecting wire undergoes elastic changes, and the drain wire winding clamp is stationary relative to the insulating shell, thereby avoiding the asymmetry of the drain wire and the operating component, the insulating shell, and the instantaneous impact force of the spring that affect the connection stability, and solves the problem of sparks generated after a gap appears between the drain wire and the drain wire winding clamp during use, thereby improving safety; the lower end of the operating component of the present invention is provided with an insulating shell, and the drain wire winding clamp and the reset component are both located inside the insulating shell, and the arc extinguishing switch and the drain wire connection do not need to be wrapped with an insulating blanket, but are fixed with an insulating clip, and the insulating cavity formed by the insulating shell has good tightness, thereby improving operation safety; the present invention has the advantages of reasonable structure, flexible wire hanging method, stable connection of the drain wire, and good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention.

[0015] Figure 2 It is a schematic structural diagram of the wire connection assembly of the present invention.

[0016] Figure 3 It is a cross-sectional view of the connection and arc extinguishing assembly of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the operating mechanism of the present invention.

[0018] Figure 5It is a structural schematic diagram of the drainage wire winding fixture and the reset assembly of the present invention.

[0019] In the figure: 1, wire connection assembly 11, main body 12, slot 13, top 14, threaded rod 15, rubber handle 16, positioning pin rod 17, limit pin rod 18, flexible clamp 2, connection and arc extinguishing assembly 3, upper connector 31, connecting female head 32, connecting sleeve 33, polishing female sleeve 34, arc extinguisher 35, arc extinguishing cavity 36, connecting chamber 37, connecting column 38, stop spring device 39, upper threaded port 4, lower connector 41, connecting male head 42, polishing male head 43, top column 44 , preload spring 45, lower threaded mouth 5, operating assembly 6, operating mechanism 61, base plate 62, longitudinal linear slide 63, conductive rod 64, mounting plate 65, tension spring 66, teeth 67, transverse linear slide 68, linear drive 69, stop ratchet 601, compression spring 7, insulating shell 8, drainage wire winding fixture 81, upper splint 82, lower splint 83, bushing 84, connecting rod 9, reset assembly 91, pull column 92, winding shaft 93, spring 94, nut 10, elastic connecting wire. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings. Example 1

[0021] like Figure 1-5 As shown, an arc extinguishing switch taking into account the stability of the drain wire connection, comprises a wire connecting component 1 and an operating component 5, wherein a connecting and arc extinguishing component 2 is detachably connected below the wire connecting component 1, an operating component 5 is detachably connected below the connecting and arc extinguishing component 2, an operating mechanism 6 is arranged inside the operating component 5, an insulating shell 7 is installed below the operating component 5, a drain wire winding fixture 8 is arranged inside the insulating shell 7, the drain wire winding fixture 8 is connected to the bottom end of the operating mechanism 6 inside the operating component 5 through a reset component 9, and one side of the drain wire winding fixture 8 is connected to the upper end of the reset component 9 through an elastic connecting wire 10.

[0022] The wire connection assembly 1 includes a main body 11 and a flexible clamp 18. A slot 12 is longitudinally opened inside the main body 11. A threaded rod 14 is arranged inside the main body 11. A rubber handle 15 threadedly connected to the threaded rod 14 is arranged at the bottom end of the main body 11. A positioning pin rod 16 with both ends passing through the slot 12 is arranged at the upper end of the threaded rod 14 inside the main body 11.

[0023] The main body 11 is provided with a top end 13 on the top, and a limit pin 17 is provided inside the top end 13 . The flexible clamp 18 is located above the top end 13 , and the free end of the flexible clamp 18 is fixedly connected to the two ends of the positioning pin 16 after passing through the limit pin 17 .

[0024] In this embodiment, the working principle of the wire connection assembly is: when the arc extinguishing switch is fixed, the threaded rod is adjusted by the rubber handle, and the threaded rod drives the flexible clamp to move one end connected to the positioning pin rod through the positioning pin rod, thereby realizing the adjustment of the flexible clamp, so that the flexible clamp can tightly and firmly clamp the cable, thereby completing the fixation of the arc extinguishing switch on the wire, replacing the method of continuously rotating the arc extinguishing switch body, reducing the physical consumption of the operating personnel, and improving the efficiency of live working.

[0025] The connection and arc extinguishing assembly 2 includes an upper connector 3 and a lower connector 4. When the lower connector 4 is moved by the operating mechanism 6 so as to connect or separate the lower connector 4 and the upper connector 3, the elastic connecting wire 10 undergoes elastic changes, and the drain wire winding clamp 8 is stationary relative to the insulating shell 7.

[0026] The upper connector 3 includes a connecting female head 31, a connecting sleeve 32 is installed on the outside of the connecting female head 31, a polishing female sleeve 33 is arranged at the lower part of the connecting sleeve 32, an arc extinguisher 34 is arranged above the polishing female sleeve 33, and the arc extinguisher 34 is connected to an arc extinguishing cavity 35 arranged inside the connecting female head 31; a connecting chamber 36 is arranged inside the arc extinguishing cavity 35, a connecting column 37 is movably installed inside the connecting chamber 36, and a stop spring device 38 is arranged on the top of the connecting column 37; an upper threaded opening 39 connected to the threaded rod 14 is arranged on the top of the connecting female head 31.

[0027] The lower connector 4 includes a connecting male head 41 corresponding to the connecting female head 31, a polishing male head 42 inserted into the inner wall of the polishing female sleeve 33 is arranged above the connecting male head 41, and a top column 43 penetrating the polishing male head 42 and penetrating into the connecting sleeve 32 to contact the connecting column 37 is arranged inside the connecting male head 41, and the top column 43 is connected to the polishing male head 42 through a plurality of O-rings arranged up and down on the outside thereof, and a preload spring 44 is sleeved on the outer part of the top column 43 located inside the connecting male head 41; a lower threaded opening 45 connected to the operating mechanism 6 is arranged at the bottom of the connecting male head 41.

[0028] In this embodiment, the working principle of the connection and arc extinguishing assembly is as follows: when the operating mechanism drives the lower connector to move, the polishing male head of the lower connector first contacts the polishing female sleeve and slides inward along the inner wall of the polishing female sleeve, so that the polishing male head and the polishing female sleeve are docked; as the polishing male head slides inward along the inner wall of the polishing female sleeve, the top column also moves toward the interior of the upper connector and contacts the connecting column, driving the connecting column to move toward the interior of the connecting chamber, and the arc extinguisher and the arc extinguishing chamber achieve effective and reliable arc extinguishing when the top column contacts the connecting column, thereby ensuring safety.

[0029] The operating mechanism 6 includes a base plate 61, and longitudinal linear slides 62 are provided at both upper and lower ends of one side of the base plate 61. The longitudinal linear slides 62 are connected by a conductive rod 63, and the upper end of the conductive rod 63 is connected to the lower threaded opening 45; a mounting plate 64 is provided below the conductive rod 63, and the mounting plate 64 is connected to the longitudinal linear slide 62 located on the upper side of the base plate 61 through a tension spring 65, and teeth 66 are provided on one side of the upper part of the conductive rod 63; a transverse linear slide 67 is provided on the upper left side of the base 61, and a linear driver 68 is provided on the left side of the transverse linear slide 67, and a stop ratchet 69 is provided inside the transverse linear slide 67, and one end of the stop ratchet 69 is connected to the linear driver 68 and the other end is engaged with the teeth 66; a compression spring 601 is provided on the outside of the stop ratchet 69.

[0030] In this embodiment, the working principle of the operating mechanism is as follows: in the initial state, the stopping ratchet clamps the lowest tooth of the conductive rod. When the conductive rod is pulled downward by the reset assembly (the stopping ratchet is not in contact with the tooth at this time), the conductive rod drives the lower connector to move downward, so that the lower connector is disconnected from the upper connector. The linear drive drives the stopping ratchet to move, and the stopping ratchet clamps the tooth of the conductive rod, so that the lower connector and the upper connector remain disconnected. When in use, the stopping ratchet is driven to move by the linear drive, so that the stopping ratchet is away from the conductive rod, and the conductive rod moves upward under the action of the tension spring, and the conductive rod drives the lower connector to move upward. The connector moves so that the lower connector and the upper connector are connected, and the corresponding work can be carried out. Of course, in actual use, the tension spring can also be replaced by a compression spring. At this time, in the initial state, the stopping ratchet clamps the teeth of the conductive rod (the stopping ratchet clamps the uppermost teeth of the conductive rod), so that the lower connector and the upper connector remain disconnected. When in use, the stopping ratchet is driven to move by the linear drive, so that the stopping ratchet is away from the conductive rod, and the conductive rod moves upward under the action of the compression spring, and the lower connector is driven to move by the conductive rod, so that the lower connector and the upper connector are connected, and the corresponding work can be carried out.

[0031] The drainage wire winding fixture 8 includes an upper clamping plate 81 and a lower clamping plate 82 , wherein shaft sleeves 83 are disposed inside the upper clamping plate 81 and the lower clamping plate 82 , and a connecting rod 84 connected to one end of the elastic connecting line 10 is installed on one side above the lower clamping plate 82 .

[0032] The reset assembly 9 includes a pull column 91, and a winding shaft 92 is arranged above the pull column 91 and passes through the shaft sleeve 83, the upper clamping plate 81 and the lower clamping plate 82. A spring 93 is installed on the outside of the winding shaft 92 above the lower clamping plate 82, and a nut 94 is installed on the top of the spring 93. The nut 94 is connected to the lower end of the conductive rod 63.

[0033] In this embodiment, the working principles of the drainage wire winding clamp and the reset assembly are as follows: the drainage wire is wound on the drainage wire winding clamp, and the drainage wire winding clamp can rotate relative to the winding shaft to facilitate winding of the drainage wire; the drainage wire winding clamp is connected to the upper end of the reset assembly through an elastic connecting wire, and when the conductive rod is moved by the operating mechanism to connect or separate the lower connector and the upper connector, the elastic connecting wire undergoes elastic changes, and the drainage wire winding clamp is stationary relative to the insulating shell, thereby avoiding the asymmetry of the drainage wire and the operating assembly, the insulating shell, and the instantaneous impact force of the spring, which affect the connection stability, and solves the problem of sparks generated after a gap appears between the drainage wire and the drainage wire winding clamp during use, thereby improving safety.

[0034] The present invention is an arc extinguishing switch that takes into account the stability of the connection of the drain line. During use, a wire connecting mechanism 1 is arranged on the top of the present invention. The wire connecting mechanism 1 is connected to the cable through a flexible clamp 18, and the connection tightness between the flexible clamp 18 and the cable can be adjusted through a rubber handle 15. The flexible hanging method is adopted. On the one hand, the connection with the cable is relatively tight, ensuring the stability and reliability of the device during use. On the other hand, it can effectively avoid the hard clamp from damaging the cable surface and causing the possible disadvantage of leakage, thereby greatly improving safety; the operating component 5 is connected to the wire connecting component 1 through a connecting and arc extinguishing component 2, and an electrical connection is achieved through the upper connector 3 and the lower connector 4 of the connecting and arc extinguishing component 2. The arc extinguisher 34 and the arc extinguishing cavity 35 in the upper connector 3 are used to achieve effective arc extinguishing when the top column 43 is connected to the connecting column 37, thereby ensuring safety; the reset component 9 of the present invention is connected to the operating mechanism 6, and the drain line winding clamp 8 is connected through The elastic connecting wire 10 is connected to the upper end of the reset component 9. When the conductive rod 63 is moved by the operating mechanism 6 to connect or separate the lower connector 4 and the upper connector 3, the elastic connecting wire 10 undergoes elastic changes, and the drain wire winding clamp 8 is stationary relative to the insulating shell 7, thereby avoiding the asymmetry of the drain wire and the operating component 5, the insulating shell 7, and the instantaneous impact force of the spring that affect the connection stability, and solves the problem of sparks generated after a gap appears between the drain wire and the drain wire winding clamp 8 during use, thereby improving safety; the lower end of the operating component of the present invention is provided with an insulating shell 7, the drain wire winding clamp 8 and the reset component 9 are both located inside the insulating shell 7, the arc extinguishing switch and the drain wire connection do not need to be wrapped with an insulating blanket, and are fixed with an insulating clip, the insulating cavity formed by the insulating shell has good tightness, and the operation safety is improved; the present invention has the advantages of reasonable structure, flexible hanging wire method, stable drain wire connection, and good safety. Example 2

[0035] like Figure 1-5 As shown, a working method of an arc extinguishing switch taking into account the stability of the drain line connection adopts the arc extinguishing switch taking into account the stability of the drain line connection as described above, including: when the lower connector is moved by an operating mechanism so that the top column inside the lower connector and the connecting column inside the upper connector are connected or separated, the elastic connecting wire undergoes elastic changes, and the drain line winding clamp is stationary relative to the insulating shell.

[0036] The present invention is an arc extinguishing switch that takes into account the stability of the connection of the drain line. During use, a wire connecting mechanism 1 is arranged on the top of the present invention. The wire connecting mechanism 1 is connected to the cable through a flexible clamp 18, and the connection tightness between the flexible clamp 18 and the cable can be adjusted through a rubber handle 15. The flexible hanging method is adopted. On the one hand, the connection with the cable is relatively tight, ensuring the stability and reliability of the device during use. On the other hand, it can effectively avoid the hard clamp from damaging the cable surface and causing the possible disadvantage of leakage, thereby greatly improving safety; the operating component 5 is connected to the wire connecting component 1 through a connecting and arc extinguishing component 2, and an electrical connection is achieved through the upper connector 3 and the lower connector 4 of the connecting and arc extinguishing component 2. The arc extinguisher 34 and the arc extinguishing cavity 35 in the upper connector 3 are used to achieve effective arc extinguishing when the top column 43 is connected to the connecting column 37, thereby ensuring safety; the reset component 9 of the present invention is connected to the operating mechanism 6, and the drain line winding clamp 8 is connected through The elastic connecting wire 10 is connected to the upper end of the reset component 9. When the conductive rod 63 is moved by the operating mechanism 6 to connect or separate the lower connector 4 and the upper connector 3, the elastic connecting wire 10 undergoes elastic changes, and the drain wire winding clamp 8 is stationary relative to the insulating shell 7, thereby avoiding the asymmetry of the drain wire and the operating component 5, the insulating shell 7, and the instantaneous impact force of the spring that affect the connection stability, and solves the problem of sparks generated after a gap appears between the drain wire and the drain wire winding clamp 8 during use, thereby improving safety; the lower end of the operating component of the present invention is provided with an insulating shell 7, the drain wire winding clamp 8 and the reset component 9 are both located inside the insulating shell 7, the arc extinguishing switch and the drain wire connection do not need to be wrapped with an insulating blanket, and are fixed with an insulating clip, the insulating cavity formed by the insulating shell has good tightness, and the operation safety is improved; the present invention has the advantages of reasonable structure, flexible hanging wire method, stable drain wire connection, and good safety.

Claims

1. An arc extinguishing switch taking into account the stability of the drain wire connection, comprising a wire connection component and an operating component, characterized in that: A connection and arc extinguishing component is detachably connected below the wire connection component, an operating component is detachably connected below the connection and arc extinguishing component, an operating mechanism is arranged inside the operating component, an insulating shell is installed below the operating component, a drain wire winding clamp is arranged inside the insulating shell, the drain wire winding clamp is connected to the bottom end of the operating mechanism inside the operating component through a reset component, and one side of the drain wire winding clamp is connected to the upper end of the reset component through an elastic connecting wire.

2. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 1, characterized in that: The wire connection assembly includes a main body and a flexible clamp, wherein a slot is longitudinally opened inside the main body, a threaded rod is arranged inside the main body, a rubber handle threadedly connected to the threaded rod is arranged at the bottom end of the main body, and a positioning pin rod with both ends passing through the slot is arranged at the upper end of the threaded rod inside the main body.

3. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 2, characterized in that: The main body is provided with a top end on the top, a limiting pin rod is provided inside the top end, the flexible clamp is located above the top end, and the free end of the flexible clamp is fixedly connected with the two ends of the positioning pin rod after passing through the limiting pin rod.

4. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 3, characterized in that: The connection and arc extinguishing assembly includes an upper connector and a lower connector. When the lower connector is moved by an operating mechanism so that the lower connector and the upper connector are connected or separated, the elastic connecting wire undergoes elastic changes and the drain wire winding fixture remains stationary relative to the insulating shell.

5. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 4, characterized in that: The upper connector includes a connecting female head, a connecting sleeve is installed on the outside of the connecting female head, a polishing female sleeve is arranged at the lower part of the connecting sleeve, an arc extinguisher is arranged above the polishing female sleeve, and the arc extinguisher is connected to the arc extinguishing cavity arranged inside the connecting female head; a connecting chamber is arranged inside the arc extinguishing cavity, a connecting column is movably installed inside the connecting chamber, and a stop spring is arranged on the top of the connecting column; an upper threaded opening connected to the threaded rod is arranged on the top of the connecting female head.

6. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 5, characterized in that: The lower connector includes a connecting male head corresponding to the connecting female head, a polishing male head plugged into the inner wall of the polishing female sleeve is arranged above the connecting male head, a top column penetrating the polishing male head and penetrating into the connecting sleeve to contact the connecting column is arranged inside the connecting male head, the top column is connected to the polishing male head through a plurality of O-rings arranged up and down on its outside, and a pre-tightening spring is provided on the outer part of the top column located inside the connecting male head; a lower threaded opening connected to the operating mechanism is arranged at the bottom of the connecting male head.

7. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 6, characterized in that: The operating mechanism includes a base plate, and longitudinal linear slides are provided at both upper and lower ends of one side of the base plate, and the longitudinal linear slides are connected by a conductive rod, and the upper end of the conductive rod is connected to the lower threaded opening; a mounting plate is provided below the conductive rod, and the mounting plate is connected to the longitudinal linear slide located on the upper side of the base plate through a tension spring, and teeth are provided on one side of the upper part of the conductive rod; a transverse linear slide is provided on the upper left side of the base, and a linear drive is provided on the left side of the transverse linear slide, and a stop ratchet is provided inside the transverse linear slide, and one end of the stop ratchet is connected to the linear drive, and the other end is engaged with the teeth; a compression spring is provided on the outer sleeve of the stop ratchet.

8. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 7, characterized in that: The drainage wire winding fixture comprises an upper clamping plate and a lower clamping plate, wherein shaft sleeves are arranged inside the upper clamping plate and the lower clamping plate, and a connecting rod connected to one end of the elastic connecting wire is installed on one side above the lower clamping plate.

9. An arc-extinguishing switch taking into account the connection stability of the drain line as claimed in claim 8, characterized in that: The reset assembly includes a pull column, above which is provided a winding shaft penetrating a shaft sleeve, an upper clamping plate and a lower clamping plate, a spring is installed outside the portion of the winding shaft above the lower clamping plate, a nut is installed on the top of the spring, and the nut is connected to the lower end of the conductive rod.

Images