Electronic pole-mounted switch

Abstract

The utility model relates to the technical field of pole-mounted switches, in particular to an electronic pole-mounted switch which comprises a shell, a pole, an electronic mutual inductor and a contact knife. The pole is arranged on the shell, a first contact electrically connected with the wire inlet terminal is arranged at the top of the pole, a second contact is fixedly arranged on the side wall of the pole, and the electronic transformer is connected with the side wall of the pole. The first end of the contact knife is rotatably connected to the second contact. And the contact knife is rotated to enable the second end of the contact knife to be in contact with and electrically connected with the first contact, so that the second contact is electrically connected with the first contact through the contact knife to form an access. When the circuit needs to be disconnected for maintenance, the contact knife is rotated, so that the second end of the contact knife leaves the first contact to disconnect the electric connection. Due to the fact that the circuit disconnection position is located at the wire inlet terminal of the pole, electric connection of the pole, the electronic transformer and a follow-up circuit is disconnected at the moment, the follow-up circuit can be overhauled, the pole and the electronic transformer can also be overhauled, and the overhauled range is widened.

Description

Technical Field

[0001] The present application relates to the technical field of pole-mounted switches, and more specifically, to an electronic pole-mounted switch. Background Art

[0002] A pole switch is a type of safety switch used on a utility pole to ensure the safety of electricity use. Its main function is to isolate the high voltage of the circuit. The voltage and current acquisition and power supply of the electromagnetic pole switch use electromagnetic transformers. The voltage transformer of the electromagnetic transformer has a large capacity and a large volume, which is prone to ferromagnetic resonance. The current transformer is large in size and has a magnetic saturation problem, which is not conducive to the miniaturization and intelligence of the pole switch. The electronic pole switch uses an electronic transformer, which has a small size, a wide measurement range, good linearity, high precision, is not easy to saturate, does not produce ferromagnetic resonance, and does not have a magnetic saturation problem.

[0003] In the existing electronic pole-mounted switches, part of the electronic transformer is arranged in the shell, and the other part is connected to the pole at the top of the shell. The top of the pole is the incoming terminal for power connection, and the outgoing terminal is arranged on the electronic transformer to connect the subsequent circuit. However, most of the existing pole-mounted switches do not have an isolation structure, which is not convenient for power-off maintenance. Some pole-mounted switches with isolation structures are arranged at the outgoing terminal on the electronic transformer. When the power is cut off and isolated, only the subsequent circuit is powered off, while the pole and the electronic transformer are still energized. Therefore, only the subsequent circuit can be repaired, and the pole and the electronic transformer cannot be repaired, and the maintenance range is small. Utility Model Content

[0004] In order to overcome the problems existing in the related art to a certain extent, the purpose of the present application is to provide an electronic pole switch, which can solve the problem that the current pole switch with an isolation structure only cuts off the power to the subsequent circuit during maintenance and has a small maintenance range. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided in the present application are described in detail below.

[0005] The present application provides an electronic column switch, comprising:

[0006] A housing, used for connection at a location to be installed;

[0007] A pole, arranged on the housing, a first contact electrically connected to the incoming terminal is arranged on the top of the pole, and a second contact is fixedly arranged on the side wall of the pole;

[0008] An electronic mutual inductor connected to the side wall of the pole;

[0009] A contact knife, wherein the first end of the contact knife is rotatably connected to the second contact, and the second end of the contact knife can contact the first contact when rotating.

[0010] Optionally, the electronic transformer and the second contact are located on two opposite sides respectively.

[0011] Optionally, it also includes:

[0012] A socket is provided on the shell, a third aviation socket is provided on a side of the socket located outside the shell, and a first aviation plug and a second aviation plug are connected to a side of the socket located inside the shell through a first shielded cable and a second shielded cable respectively;

[0013] The signal conversion box is connected to the electronic transformer signal, and the signal conversion box is provided with a first aviation socket and a second aviation socket for inserting the first aviation plug and the second aviation plug respectively.

[0014] Optionally, it also includes:

[0015] A driving device is connected to the touch knife in a power connection, and the driving device is used to drive the touch knife to rotate around its first end.

[0016] Optionally, the driving device comprises:

[0017] A V-shaped crank arm, wherein a corner portion of the V-shaped crank arm is rotatably connected to the second contact, and a first end of the V-shaped crank arm is fixedly connected to the contact blade;

[0018] A rotating shaft, rotatably connected to the housing, a first rotating arm is fixedly sleeved on the rotating shaft, and an end of the first rotating arm away from the rotating shaft is connected to the second end of the V-shaped crank arm;

[0019] An operating handle, wherein the middle portion of the operating handle is connected to one end of the rotating shaft.

[0020] Optionally, it also includes:

[0021] An insulating column, wherein the first end of the insulating column is connected to the second end of the V-shaped turning arm, and the second end of the insulating column is connected to an end of the first rotating arm away from the rotating shaft.

[0022] Optionally, it also includes:

[0023] An adjusting screw, wherein the first end of the adjusting screw is screwed into a threaded hole provided on the first end surface of the insulating column, and the second end of the adjusting screw is connected to the second end of the V-shaped arm.

[0024] Optionally, it also includes:

[0025] A limiting structure is arranged on the shell. When the limiting structure is in a first state, the rotating shaft is locked. When the limiting structure is in a second state, the rotating shaft can rotate.

[0026] Optionally, the limiting structure includes:

[0027] A sliding sleeve fixedly arranged on the housing;

[0028] A sliding rod slidably arranged in the sliding sleeve. A second rotating arm is fixedly sleeved on the rotating shaft. When the sliding rod slides to the first position, the sliding rod is located on the rotation track of the second rotating arm and abuts against the second rotating arm. When the sliding rod slides to the second position, the sliding rod leaves the rotation track of the second rotating arm.

[0029] Optionally, it further includes:

[0030] A rotating column rotatably connected to the housing;

[0031] A rotating needle. A pointer is arranged at the first end of the rotating needle, and the second end of the rotating needle is fixedly sleeved on the rotating column;

[0032] A fourth rotating arm. The first end of the fourth rotating arm is fixedly sleeved on the rotating column, and the second end of the fourth rotating arm is connected to the sliding rod through a connecting rod. The words "closed" and "open" are arranged on the housing. When the sliding rod slides to the first position, the rotating needle points to the word "closed". When the sliding rod slides to the second position, the rotating needle points to the word "open".

[0033] The technical solution provided by this application may include the following beneficial effects:

[0034] An electronic pole-mounted switch provided by this application. The pole is fixedly arranged at the top of the housing. A first contact is fixedly arranged at the top of the pole, so that the first contact is electrically connected to the incoming line terminal of the pole. The electronic current transformer is connected to the side wall of the pole. The electronic current transformer is electrically connected to the outgoing line of the pole. An outgoing line terminal is arranged on the electronic current transformer, and the outgoing line terminal is used to connect the subsequent circuit. A second contact is fixedly arranged on the side wall of the pole, and the first end of the contact knife is rotatably connected to the second contact. When the contact knife rotates around its first end, the second end of the contact knife rotates on a circular track with the axis of the rotating hole as the center, and the extended end of the first contact is located on this circular track. Therefore, the second end of the contact knife can contact the first contact and be electrically connected to the first contact when rotating. Rotate the contact knife so that the second end of the contact knife contacts and is electrically connected to the first contact. Therefore, the second contact is electrically connected to the first contact through the contact knife to form a circuit. When it is necessary to disconnect the circuit for maintenance, rotate the contact knife so that the second end of the contact knife leaves the first contact and disconnects the electrical connection. Since the circuit disconnection point is located at the incoming line terminal of the pole, at this time, the pole, the electronic current transformer and the subsequent circuit are all disconnected from the electrical connection. Not only can the subsequent circuit be maintained, but also the pole and the electronic current transformer can be maintained, increasing the maintainable range.

[0035] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0037] In order to more clearly illustrate the embodiments of the utility model 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, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 is a side view schematic diagram of an electronic column switch according to some exemplary embodiments;

[0039] Figure 2 is a first perspective isometric view of an electronic column mounted switch according to some exemplary embodiments;

[0040] Figure 3 is a front schematic diagram of an electronic column switch according to some exemplary embodiments;

[0041] Figure 4 is an isometric view of an electronic column mounted switch from a second perspective according to some exemplary embodiments;

[0042] Figure 5 yes Figure 4 A magnified schematic diagram of point A;

[0043] Figure 6 is a schematic diagram of the back side of an electronic pole switch according to some exemplary embodiments;

[0044] Figure 7 is a schematic structural diagram of a socket according to some exemplary embodiments;

[0045] Figure 8 is a schematic structural diagram of a signal conversion box according to some exemplary embodiments.

[0046] In the figure: 1. shell; 2. pole; 3. electronic mutual inductor; 4. first contact; 5. second contact; 6. V-shaped arm; 7. contact knife; 8. insulating column; 9. shaft; 10. signal conversion box; 11. socket; 12. permanent magnet mechanism; 13. rotating needle; 14. adjusting screw; 15. fourth rotating arm; 16. first rotating arm; 17. operating handle; 18. lifting ring; 19. support; 20. positioning block; 21. limiting bolt; 22. connecting rod; 23. rotating column; 24. second rotating arm; 25. spring; 26. sliding sleeve; 27. sliding rod; 28. bracket; 29. ​​third rotating arm; 30. first aviation plug; 31. second aviation plug; 32. first aviation socket; 33. second aviation socket. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0048] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to the solutions required as the utility model described in the claims.

[0049] refer to Figure 1-8 This specific embodiment provides an electronic pole-mounted switch, including: a housing 1, a pole 2, an electronic transformer 3 and a contact blade 7. Three poles 2 are provided and are all fixedly arranged on the top of the housing 1. A first contact 4 is fixedly arranged on the top of the pole 2, so that the first contact 4 is electrically connected to the incoming terminal of the pole 2. One end of the first contact 4 is fixedly connected to the incoming terminal on the top of the pole 2, and the other end is plate-shaped and extends outward.

[0050] The electronic transformer 3 is connected to the side wall of the pole 2 , and is electrically connected to the outgoing line of the pole 2 . The electronic transformer 3 is provided with an outgoing line terminal, and the outgoing line terminal is used to connect the subsequent circuit.

[0051] A second contact 5 is fixedly arranged on the side wall of each pole 2, one end of the second contact 5 is fixedly connected to the side wall of the pole 2, and the other end is plate-shaped and extends outward. Rotary holes are respectively provided on the first end of the contact blade 7 and the second contact 5. After the rotary hole at the first end of the contact blade 7 and the rotary hole on the second contact 5 are coaxially aligned, a bolt is passed through, a spring is inserted into the end through which the bolt passes, and then a nut is screwed. After the nut is tightened, the first end of the contact blade 7 can rotate around the rotary hole on the second contact 5. When the contact blade 7 rotates around its first end, the second end of the contact blade 7 rotates on a circular trajectory with the axis of the rotary hole as the center, and the extended end of the first contact 4 is located on the circular trajectory, so that the second end of the contact blade 7 can contact the first contact 4 when rotating and be electrically connected to the first contact 4.

[0052] The housing 1 is fixedly connected to the location to be installed, the second contact 5 is electrically connected, and the outlet terminal of the electronic transformer 3 is electrically connected to the subsequent circuit. The contact blade 7 is rotated so that the second end of the contact blade 7 contacts the first contact 4 and is electrically connected, so that the second contact 5 is electrically connected to the first contact 4 through the contact blade 7 to form a path. When the circuit needs to be disconnected for maintenance, the contact blade 7 is rotated so that the second end of the contact blade 7 leaves the first contact 4 and the electrical connection is disconnected. Compared with disconnection at the outlet terminal of the electronic transformer 3, since the circuit disconnection point is located at the incoming terminal of the pole 2, the pole 2, the electronic transformer 3 and the subsequent circuit are all electrically disconnected at this time, not only the subsequent circuit can be repaired, but also the pole 2 and the electronic transformer 3 can be repaired, which increases the repairable range.

[0053] As an optional implementation, the electronic transformer 3 and the second contact 5 are both connected to the side wall of the pole 2 and are respectively located on both sides of the pole 2, so that the electronic transformer 3 and the second contact 5 are arranged opposite to each other. Compared with the electronic transformer 3 and the second contact 5 being located on the same side, the weight of the electronic transformer 3 balances the weight of components such as the first contact 4, the second contact 5 and the contact blade 7, making the whole more balanced and stable.

[0054] As an optional embodiment, it also includes: a socket 11 and a signal conversion box 10. A third aviation socket is provided on the first side of the socket 11, and the first side of the socket 11 is passed through the outside of the housing 1. At this time, the second side of the socket 11 is located inside the housing 1, so that the socket 11 is passed through the housing 1. The first shielded cable and the second shielded cable are respectively connected to the second side of the socket 11, so that the first ends of the first shielded cable and the second shielded cable are respectively connected to the third aviation socket signal. The first aviation plug 30 and the second aviation plug 31 are respectively provided at the second ends of the first shielded cable and the second shielded cable.

[0055] The signal conversion box 10 is arranged inside the housing 1. Three aviation sockets are arranged on one side of the signal conversion box 10. The signal line led out of the electronic transformer 3 is inserted into the aviation socket through an aviation plug to connect the signal. A first aviation socket 32 ​​and a second aviation socket 33 are arranged on the other side of the signal conversion box 10. The first aviation plug 30 is inserted into the first aviation socket 32, and the second aviation plug 31 is inserted into the second aviation socket 33. Thus, the signal line led out of the electronic transformer 3 is connected to the third aviation socket on the first side of the socket 11, and the detection equipment is plugged into the third aviation socket through the aviation plug, so that the signal from the electronic transformer 3 can be collected.

[0056] In this way, the housing 1 is connected by aviation plug-in. Compared with the scattered wire connection, the wiring quantity is small, which prevents errors in mass production and causes rework. It also has good electromagnetic compatibility and anti-interference characteristics, and plug-and-play facilitates mass assembly of pole switches, reduces the complexity of secondary wiring work in the production of pole switches, and improves work efficiency.

[0057] The first aviation plug 30 is a five-core aviation plug for transmitting voltage signals. The second aviation plug 31 is a nine-core aviation plug for transmitting current signals. The third aviation plug is a twenty-six-core aviation socket. The first shielded cable and the second shielded cable are both twisted-pair shielded cables and single-core shielded cables.

[0058] As an optional implementation, the voltage part of the electronic transformer uses a set of primary capacitors and secondary capacitors for voltage division in each phase, uses an inductor coil to isolate the voltage division circuit, and outputs a set of phase sequence voltages and a set of zero sequence voltages respectively. The three-phase zero sequence is connected in parallel to form a zero sequence voltage sensor. The advantage is that the voltage output is isolated from the output, and the safety performance is guaranteed.

[0059] As an optional implementation, the current part of the electronic transformer adopts the principle of low-power coil, and the zero-sequence current part adopts the method of three-phase magnetic potential synthesis. The three-phase current transformer can be regarded as a combination of three single-phase current transformers and one zero-sequence current transformer. The phase current and zero-sequence current are wound with independent coils, and the zero-sequence current is obtained by current synthesis. The low-temperature drift sampling resistor is used, which has the characteristics of high stability and small resistance change, and can operate for a long time.

[0060] As an optional embodiment, it further includes: a driving device. The driving device is connected to the touch knife 7 by power. In this way, when the touch knife 7 needs to be rotated, the driving device can be used to drive the touch knife 7 to rotate around its first end, which is convenient for operation.

[0061] The driving device includes a V-shaped crank arm 6, a rotating shaft 9 and an operating handle 17. The V-shaped crank arm 6 includes a first straight arm and a second straight arm, the intersection of the first straight arm and the second straight arm is a corner portion, and the ends away from the corner portion are respectively the first end and the second end. A rotating hole is provided at the corner portion of the V-shaped crank arm 6, and the rotating hole on the V-shaped crank arm 6, the rotating hole at the first end of the contact blade 7 and the rotating hole on the second contact 5 are coaxially aligned and then bolts are passed through. Mounting holes are respectively provided on the first end of the V-shaped crank arm 6 and the side wall of the contact blade 7, and the mounting holes on the first end of the V-shaped crank arm 6 and the mounting holes on the side wall of the contact blade 7 are aligned and then bolts are passed through to fix them. In this way, by pulling the second end of the V-shaped crank arm 6, the second end of the V-shaped crank arm 6 can be rotated together with the contact blade 7, that is, by pulling the second end of the V-shaped crank arm 6, the contact blade 7 can be rotated around its first end.

[0062] A support 19 is fixedly arranged on the housing 1, and a rotation hole is provided in the support 19. The rotation shaft 9 is rotated and passed through the rotation hole on the support 19, so that the rotation shaft 9 is rotationally connected to the housing 1. A first rotating arm 16 is fixedly sleeved on the rotation shaft 9. One end of the first rotating arm 16 away from the rotation shaft 9 is connected to the second end of the V-shaped turning arm 6. In this way, when the rotation shaft 9 rotates, the end of the first rotating arm 16 away from the rotation shaft 9 rotates around the rotation shaft 9, thereby pulling the second end of the V-shaped turning arm 6.

[0063] The middle part of the operating handle 17 is fixedly connected to one end of the rotating shaft 9, so that the rotating shaft 9 is perpendicular to the operating handle 17. In this way, the rotating shaft 9 can be driven to rotate by rotating both ends of the operating handle 17 around the rotating shaft 9, which makes the operation more convenient.

[0064] In some embodiments, a lifting ring 18 is provided at both ends of the operating handle 17. The lifting ring 18 can be hooked by a rod body to drive both ends of the operating handle 17 to rotate around the rotating shaft 9.

[0065] In other embodiments, a bracket 28 is provided on the shell 1, and a third rotating arm 29 is fixedly mounted on the rotating shaft 9. The end of the third rotating arm 29 away from the rotating shaft 9 is connected to the bracket 28 through a spring 25. When the rotating shaft 9 rotates, the third rotating arm 29 compresses the spring 25. After releasing the spring 25, the third rotating arm 29 is pushed to rotate the rotating shaft 9.

[0066] As an optional embodiment, it further includes: an insulating column 8. The first end of the insulating column 8 is hinged to the center of the second end of the V-shaped turning arm 6, and the second end of the insulating column 8 is hinged to the center of the end of the first rotating arm 16 away from the rotating shaft 9. In this way, the insulating column 8 separates the first rotating arm 16 and the V-shaped turning arm 6, preventing the operator from operating with electricity and causing electric shock accidents.

[0067] As an optional embodiment, it further includes: an adjusting screw 14. A threaded hole is provided on the end surface of the first end of the insulating column 8, the first end of the adjusting screw 14 is screwed into the threaded hole, and the second end of the adjusting screw 14 is hinged to the center of the second end of the V-shaped turning arm 6. In this way, the position of the contact knife 7 can be adjusted, thereby adjusting the rotation distance between the contact knife 7 and the first contact 4.

[0068] As an optional embodiment, a limiting structure is further included. The limiting structure is arranged on the housing 1. When the limiting structure is in a first state, the limiting structure locks the rotating shaft 9, and the rotating shaft 9 cannot rotate. When the limiting structure is in a second state, the limiting structure cancels the locking of the rotating shaft 9, and the rotating shaft 9 can rotate.

[0069] In this configuration, the contact blade 7 is rotated by rotating the rotating shaft 9, so that the contact blade 7 contacts the first contact 4, and then the limiting structure is switched to the first state, at which time the rotating shaft 9 cannot rotate, ensuring that the contact blade 7 and the first contact 4 remain in contact. When disconnection for maintenance is required, the limiting structure is switched to the second state, at which time the rotating shaft 9 can rotate, and the rotating shaft 9 can rotate the contact blade 7, so that the contact blade 7 is separated from the first contact 4.

[0070] Specifically, the limiting structure includes: a sliding sleeve 26 and a sliding rod 27. The sliding sleeve 26 is fixedly connected to the housing 1, and the sliding rod 27 is slidably arranged in the sliding sleeve 26, so that the sliding rod 27 can slide between the first position and the second position. The sliding direction of the sliding rod 27 is consistent with the length direction of the rotating shaft 9. A second rotating arm 24 is fixedly sleeved on the rotating shaft 9, and the first end of the second rotating arm 24 is fixedly connected to the side wall of the rotating shaft 9, so that the second end of the second rotating arm 24 rotates synchronously around the rotating shaft 9 when the rotating shaft 9 rotates.

[0071] When the rotating shaft 9 is rotated to make the contact knife 7 contact the first contact 4, the sliding rod 27 is slid along the sliding sleeve 26 to the first position. At this time, the sliding rod 27 is located on the rotation trajectory of the second rotating arm 24 and is against the side wall of the second rotating arm 24. At this time, the sliding rod 27 is against the second rotating arm 24, so that the rotating shaft 9 cannot rotate and is locked, ensuring that the contact knife 7 and the first contact 4 remain in contact. At this time, the limit structure is in the first state.

[0072] When disconnection for maintenance is required, the slide bar 27 is slid along the sleeve 26 from the first position to the second position. At this time, the slide bar 27 leaves the rotation track of the second rotating arm 24. At this time, the slide bar 27 leaves the second rotating arm 24 so that the rotating shaft 9 can rotate, so that the contact knife 7 can leave the first contact 4. At this time, the limit structure is in the second state.

[0073] In some embodiments, two positioning blocks 20 are provided on the support 19, and a limit bolt 21 is screwed on each positioning block 20. The two positioning blocks 20 are respectively located at two positions on the rotation trajectory of the second rotating arm 24. When the rotating shaft 9 is rotated so that the contact blade 7 contacts the first contact 4, one side of the second rotating arm 24 just abuts against the limit bolt 21 on one positioning block 20. When the rotating shaft 9 is rotated so that the contact blade 7 leaves the first contact 4 by a certain distance, the other side of the second rotating arm 24 abuts against the limit bolt 21 on the other positioning block 20. In this way, the limit bolts 21 on the two positioning blocks 20 respectively limit the rotation angle of the second rotating arm 24 on both sides, ensuring that the rotating shaft 9 rotates between specified angles.

[0074] As an alternative embodiment, it further includes: a rotating column 23, a rotating needle 13 and a fourth rotating arm 15. The rotating column 23 is rotatably connected to the housing 1. The first end of the fourth rotating arm 15 is fixedly sleeved on the rotating column 23, and the second end is connected to the sliding rod 27 through a connecting rod 22, so that the sliding rod 27 moves synchronously with the rotating column 23. A pointer is provided at the first end of the rotating needle 13, and the second end of the rotating needle 13 is fixedly sleeved on the rotating column 23. The characters "closed" and "open" are provided on the housing 1. When the sliding rod 27 slides to the first position, the sliding rod 27 moves synchronously with the rotating column 23, so that the rotating column 23 rotates, causing the pointer to rotate around the rotating column 23 and point to the character "closed". When the sliding rod 27 slides to the second position, the sliding rod 27 moves synchronously with the rotating column 23, so that the rotating column 23 rotates, causing the pointer to rotate around the rotating column 23 and point to the character "open". Such a setting can more clearly determine the state of the limit structure.

[0075] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. as expressed herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0076] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0077] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limitations of the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application. It is understood that the same or similar parts in the above embodiments may refer to each other, and the contents not described in detail in some embodiments may refer to the same or similar contents in other embodiments. The multiple schemes provided in the present application include the basic schemes themselves, which are independent of each other and do not restrict each other, but they may also be combined with each other without conflict to achieve a plurality of effects to be realized together.

Claims

1. An electronic column switch, characterized in that: include: A housing (1) for connection at a location to be installed; A pole (2) is arranged on the housing (1), a first contact (4) electrically connected to the incoming terminal is arranged on the top of the pole (2), and a second contact (5) is fixedly arranged on the side wall of the pole (2); An electronic mutual inductor (3) connected to the side wall of the pole (2); A contact knife (7), wherein the first end of the contact knife (7) is rotatably connected to the second contact (5), and the second end of the contact knife (7) can contact the first contact (4) when rotating.

2. The electronic pole switch according to claim 1, characterized in that: The electronic mutual inductor (3) and the second contact (5) are respectively located on two opposite sides.

3. The electronic pole switch according to claim 2, characterized in that: Also includes: A socket (11) is inserted into the housing (1), a third aviation socket is provided on a side of the socket (11) located outside the housing (1), and a first aviation plug (30) and a second aviation plug (31) are connected to a side of the socket (11) located inside the housing (1) through a first shielded cable and a second shielded cable, respectively; A signal conversion box (10) is connected to the electronic transformer (3) for signal connection. The signal conversion box (10) is provided with a first aviation socket (32) and a second aviation socket (33) for inserting the first aviation plug (30) and the second aviation plug (31) respectively.

4. The electronic pole switch according to claim 1, characterized in that: Also includes: A driving device is connected to the contact knife (7) in power, and is used to drive the contact knife (7) to rotate around its first end.

5. The electronic pole switch according to claim 4, characterized in that: The driving device comprises: A V-shaped turning arm (6), wherein a corner portion of the V-shaped turning arm (6) is rotatably connected to the second contact (5), and a first end of the V-shaped turning arm (6) is fixedly connected to the contact blade (7); A rotating shaft (9) is rotatably connected to the housing (1); a first rotating arm (16) is fixedly sleeved on the rotating shaft (9); an end of the first rotating arm (16) away from the rotating shaft (9) is connected to the second end of the V-shaped crank arm (6); An operating handle (17), wherein the middle portion of the operating handle (17) is connected to one end of the rotating shaft (9).

6. The electronic pole switch according to claim 5, characterized in that: Also includes: An insulating column (8), wherein the first end of the insulating column (8) is connected to the second end of the V-shaped turning arm (6), and the second end of the insulating column (8) is connected to an end of the first rotating arm (16) away from the rotating shaft (9).

7. The electronic pole switch according to claim 6, characterized in that: Also includes: An adjusting screw (14), wherein the first end of the adjusting screw (14) is screwed into a threaded hole provided on the first end surface of the insulating column (8), and the second end of the adjusting screw (14) is connected to the second end of the V-shaped arm (6).

8. The electronic pole switch according to claim 5, characterized in that: Also includes: A limiting structure is arranged on the housing (1); when the limiting structure is in a first state, the rotating shaft (9) is locked; when the limiting structure is in a second state, the rotating shaft (9) is able to rotate.

9. The electronic pole switch according to claim 8, characterized in that: The limiting structure comprises: A sliding sleeve (26) fixedly arranged on the housing (1); The sliding rod (27) is slidably arranged in the sliding sleeve (26). A second rotating arm (24) is fixedly sleeved on the rotating shaft (9). When the sliding rod (27) slides to the first position, the sliding rod (27) is located on the rotation trajectory of the second rotating arm (24) and abuts against the second rotating arm (24). When the sliding rod (27) slides to the second position, the sliding rod (27) leaves the rotation trajectory of the second rotating arm (24).

10. The electronic pole switch according to claim 9, characterized in that: Further included are: A rotating column (23) rotatably connected to the housing (1); A rotating needle (13), with a pointer provided at the first end of the rotating needle (13), and the second end of the rotating needle (13) being fixedly sleeved on the rotating column (23); A fourth rotating arm (15), with the first end of the fourth rotating arm (15) fixedly sleeved on the rotating column (23), and the second end of the fourth rotating arm (15) being connected to the sliding rod (27) through a connecting rod (22). The characters "closed" and "opened" are provided on the housing (1). When the sliding rod (27) slides to the first position, the rotating needle (13) points to the character "closed". When the sliding rod (27) slides to the second position, the rotating needle (13) points to the character "opened".

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