Turnover type disconnecting switch

Abstract

The invention provides an overturning type disconnecting switch, and relates to the technical field of disconnecting switches, the overturning type disconnecting switch comprises a base, three insulators are arranged on the base, a knife switch assembly is fixed at the upper end of the insulator located on the outer side, a ceramic connecting seat is arranged at the upper end of the insulator located in the middle, and the knife switch assembly comprises a ceramic support. The side wall of the ceramic support is fixedly connected with a supporting column, the outer side of the supporting column is rotationally connected with a second connecting piece, the side, facing the ceramic connecting base, of the second connecting piece is fixedly connected with conductive switch blades, and a first insulating elastic piece and a second insulating elastic piece are fixedly connected between the two conductive switch blades. The inner side of the ceramic connecting base is rotationally connected with a guide wheel. The long rod hook is used on the ground to pull the insulating pull rope to drive the guide wheel, then the conductive knife switch can be turned and switched on in cooperation with supporting of the insulating elastic piece and pulling of the electric wire between the connecting pieces, the conductive knife switch is in a vertical state in the isolation state, and the situation that rainwater gathers in rainy days, so that electricity is conducted is avoided.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, specifically a flip-type disconnecting switch. Background Technology

[0002] A disconnecting switch is a type of switching equipment used in power systems, primarily for isolating power sources and ensuring safe maintenance of equipment, guaranteeing reliable isolation from live parts during equipment maintenance. Its main functions include: power isolation, switching operations, and opening / closing small current circuits.

[0003] Existing flip-type disconnect switches require working at heights to close them. Maintenance personnel have to climb to heights to manually push and pull the switch, which poses a risk of falling and electric shock. Furthermore, the switch closes by frictional contact, which causes wear on the switch. Also, since it is locked by spring or gravity alone, short-circuit electric force or wind pressure can easily cause the switch to pop open unexpectedly. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a flip-type disconnect switch, comprising a base, on which three insulators are provided. A knife switch assembly is fixed to the upper end of the outer insulator, and a ceramic connecting seat is provided to the upper end of the middle insulator. The knife switch assembly includes a ceramic support, and a support column is fixedly connected to the side wall of the ceramic support. A connecting piece two is rotatably connected to the outer side of the support column. A conductive knife switch is fixedly connected to the connecting piece two on the side facing the ceramic connecting seat. An insulating spring piece one and an insulating spring piece two are fixedly connected between the two conductive knife switches. A guide wheel is rotatably connected to the inner side of the ceramic connecting seat. The ends of the two conductive switches extend into the ceramic connector, and the ends of the two conductive switches extend into the inner side of the guide wheel. A guide block is fixed on each side that is far apart from each other. The inner wall of the guide wheel is shaped to match the guide block, and the rotating conductive switches are pressed together at their ends after the guide wheel rotates. The outer side of the guide wheel is provided with two guide grooves, and insulating pull ropes with opposite directions are fixed in the two guide grooves respectively.

[0005] Preferably, the inner side of the ceramic support is fixed with a fitting terminal block and a connecting piece one, and the connecting piece one and the connecting piece two are electrically connected.

[0006] Preferably, the ceramic support has an external through hole on the side facing the ceramic connector, and an insulating support plate is rotatably connected to the inner side of the external through hole. The conductive switch extends out of the external through hole and is fixed to the insulating support plate.

[0007] Preferably, the insulator has separate termination portions at both the upper and lower ends. The termination portions at the lower part of the insulator are fixed to the base, while the termination portions at the upper part of the two outer insulators extend into the ceramic support and pass through the fixed terminal and connecting piece.

[0008] Preferably, a connecting assembly is connected between the upper end of the insulator located in the middle and the ceramic connector, a ceramic support block is fixed to the inner bottom wall of the ceramic connector, and the guide wheel is supported above the ceramic support block.

[0009] Preferably, a slot is provided at the parallel portion of the conductive switch, a support cylinder and a spring are fixedly connected to the inner bottom wall of the ceramic connector, the support cylinder is located inside the spring, a plug rod is slidably connected inside the support cylinder, an auxiliary disk is included on the outer side of the plug rod, the upper end of the spring is supported on the lower side of the auxiliary disk, the guide wheel is provided with a pressure rail for contacting the auxiliary disk on one side of the corresponding auxiliary disk, and the upper end of the plug rod corresponds to the position range of the slot.

[0010] Preferably, the bottom of the ceramic connector is provided with a through hole, and the insulating pull rope passes through the through hole and is fixedly connected to a connecting ring at its end.

[0011] Preferably, the first insulating spring and the second insulating spring are made of an insulating rubber layer and a spring steel sheet, wherein the insulating rubber layer is wrapped around the outside of the spring steel sheet, and the thickness of the insulating rubber layer on the outside of the spring steel sheet is 2-3.5 mm.

[0012] This invention provides a flip-type disconnect switch. It has the following advantages: In this invention, by using a long pole on the ground to hook and pull the insulating rope to drive the guide wheel, and with the support of the insulating spring and the pulling of the wires between the connecting pieces, the conductive switch can be flipped and closed. In the isolation state, the conductive switch is vertical, which avoids the situation where rainwater accumulates and thus conducts electricity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention in Figure 1 A structural diagram of the other side; Figure 3 for Figure 2 A schematic diagram of the structure after removing the ceramic connector; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention in Figure 3 A structural diagram of the other side; Figure 6 This is a schematic diagram of the structure of the present invention on the inner side of the guide wheel.

[0014] The components are as follows: 1. Base; 2. Insulator; 3. Terminal block; 4. Ceramic support; 5. Conductive switch; 6. Insulating pull rope; 7. Support ring; 8. Ceramic connector; 9. Connecting assembly; 10. Insulating support piece; 11. Connecting piece one; 12. Support column; 13. Connecting piece two; 14. Insulating spring piece one; 15. Guide wheel; 16. Pressure rail; 17. Insulating spring piece two; 18. Insert rod; 19. Support cylinder; 20. Spring; 22. Guide block. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1-6 As shown, this embodiment of the invention provides a flip-type disconnect switch, including a base 1, on which three insulators 2 are provided. A knife switch assembly is fixed to the upper end of the outer insulator 2, and a ceramic connector 8 is provided to the upper end of the middle insulator 2. In the above, both the upper and lower ends of the insulator 2 include a disconnected end portion. The lower end portion of the insulator 2 is inserted into the base 1 and fixed by a nut. Specifically, the outer side of the end portion is provided with a thread. The switch assembly includes a ceramic support 4, which includes a connected circular vertical part and a horizontal part. The inner side of the horizontal part of the ceramic support 4 is fixed with a fitting terminal 3 and a connecting piece 11. Specifically, the end joints of the upper parts of the two outer insulators 2 extend into the inner horizontal part of the ceramic support 4 and pass through the terminal 3 and the connecting piece 11. Nuts are connected on the outer side to fix the terminal 3 and the connecting piece 11 to the inner side of the ceramic support 4. The connecting piece 11 is located above the terminal 3. An insulating rubber clip is inserted into the inner horizontal part of the ceramic support 4 and is clipped to the upper side of the terminal 3. A support column 12 is fixedly connected to the side wall of the circular vertical part of the ceramic support 4. A connecting piece 2 13 is rotatably connected to the outside of the support column 12. The connecting piece 11 and the connecting piece 2 13 are electrically connected. Both the connecting piece 11 and the connecting piece 2 13 are made of conductive metal discs. A conductive switch 5 is fixedly connected to the side of the connecting piece 2 13 facing the ceramic connecting seat 8. The conductive switches 5 are close to each other and parallel at the ends away from the connecting piece 2 13. An insulating spring piece 14 and an insulating spring piece 2 17 are fixedly connected between the two conductive switches 5. The insulating spring piece 14 and the insulating spring piece 2 17 are made of an insulating rubber layer and a spring steel sheet. The insulating rubber layer is wrapped around the outside of the spring steel sheet. The thickness of the insulating rubber layer on the outside of the spring steel sheet is 2-3.5mm. The elasticity of the insulating spring piece 14 and the insulating spring piece 2 17 keeps the ends of the two conductive switches 5 away from each other. A guide wheel 15 is rotatably connected to the inner side of the ceramic connector 8. Two guide grooves are provided on the outer side of the guide wheel 15. Insulating pull ropes 6 with opposite directions are fixed in the two guide grooves. As described above, the guide wheel 15 can be rotated in opposite directions by pulling different insulating pull ropes 6. A through hole is provided at the bottom of the ceramic connector 8. The insulating pull rope 6 passes through the through hole and is fixedly connected to a connecting ring with an outer insulating layer at the end. That is, the guide wheel 15 can be rotated by pulling the connecting ring with a long rod hook. This can improve the convenience of rotating the guide wheel 15 after the flip-type disconnect switch is installed at a high place. The ends of the two conductive switches 5 extend into the ceramic connector 8, and the ends of the two conductive switches 5 extend into the inner side of the guide wheel 15. A guide block 22 is fixed on the side that is far away from each other. The guide block 22 is made of a whole piece of graphite. The inner wall of the guide wheel 15 is shaped to match the guide block 22. After the guide wheel 15 rotates, it causes the rotating conductive switches 5 to press and move closer together at the ends. That is, the guide block 22 connected to the conductive switches 5 is pressed and guided to the guide wheel 15 by the insulating spring 14 and the insulating spring 17. Then, after the guide wheel 15 rotates, the conductive switches 5 are driven to rotate and press and move closer together by friction, and finally stick together. The ceramic support 4 has an external through hole on the side facing the ceramic connector 8. An insulating support plate 10 is rotatably connected to the inside of the external through hole. The conductive switch 5 passes through the external through hole and is fixed to the insulating support plate 10.

[0017] A connecting component 9 is connected between the upper end of the insulator 2 located in the middle and the ceramic connecting seat 8. A ceramic support block is fixed to the inner bottom wall of the ceramic connecting seat 8, and the guide wheel 15 is supported above the ceramic support block. The connecting component 9 includes an outer cylinder and an adjusting knob. The outer cylinder is fixed to the ceramic connecting seat 8, and the adjusting knob is rotatably connected to the lower end of the outer cylinder. The upper end of the insulator 2 located in the middle is threadedly connected to the adjusting knob. After rotating the adjusting knob, the corresponding end and the outer cylinder can be connected together.

[0018] A slot is provided at the parallel part of the conductive switch 5. A support cylinder 19 and a spring 20 are fixedly connected to the inner bottom wall of the ceramic connector 8. A support ring 7 is fixedly connected to the guide wheel 15 on the side away from the support cylinder 19. The support ring 7 passes through the side wall of the ceramic connector 8 on the corresponding side and the two are rotatably connected. The support cylinder 19 is located inside the spring 20. An insert rod 18 is slidably connected inside the support cylinder 19. An auxiliary disk is included on the outer side of the insert rod 18. The upper end of the spring 20 is supported on the lower side of the auxiliary disk. A pressure rail 16 for contacting the auxiliary disk is provided on the side of the guide wheel 15 corresponding to the auxiliary disk. The upper end of the insert rod 18 corresponds to the position range of the slot. In the above, when the guide wheel 15 rotates to drive the conductive switch 5 and squeezes the conductive switch 5, the slots of the two conductive switches 5 are aligned. The shape of the pressure rail 16 reduces the squeezing force on the auxiliary disk. As a result, the spring 20 pushes the auxiliary disk upward, thereby driving the insert rod 18 to insert into the slot, thereby restricting the rotation of the conductive switch 5.

[0019] Working principle: After the insulating pull rope 6 is pulled, the insulating pull rope 6 rotates through the guide wheel 15. During the process, due to the support of the insulating spring piece 14 and the insulating spring piece 17 on the conductive switch 5, and the tension of the wire connected by the connecting piece 11 and the connecting piece 23 (the installation angle of the connecting piece 23 can be adjusted to control the initial position of the wire being pulled; here it is adjusted so that the conductive switch 5 rotates to a horizontal state before being squeezed by the guide wheel 15), the guide block 22 rotates along the guide wheel 15 and squeezes, thereby bringing the horizontal parts of the conductive switch 5 closer together. Due to the shape of the pressure rail 16, the squeezing force on the auxiliary disk is reduced accordingly. As a result, the spring 20 pushes the auxiliary disk upward, which in turn drives the insertion rod 18 to insert into the slot, thereby restricting the rotation of the conductive switch 5, thus completing the closing. After pulling the other insulating pull rope 6, the guide wheel 15 rotates in the opposite direction, causing the pressure rail 16 to squeeze the auxiliary disk, thereby overcoming the resistance of the spring 20 and driving the insertion rod 18 to move downward, entering and exiting from the slot. With the rotation of the guide wheel 15 and the insulating spring piece 14 and insulating spring piece 17, the two conductive switches 5 are separated.

[0020] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flip-type disconnect switch, comprising a base (1), wherein three insulators (2) are disposed on the base (1), a knife switch assembly is fixed to the upper end of the outer insulator (2), and a ceramic connector (8) is disposed to the upper end of the middle insulator (2), characterized in that: The switch assembly includes a ceramic support (4), a support column (12) is fixedly connected to the side wall of the ceramic support (4), a connecting piece two (13) is rotatably connected to the outside of the support column (12), a conductive switch (5) is fixedly connected to the connecting piece two (13) on the side facing the ceramic connecting seat (8), an insulating spring piece one (14) and an insulating spring piece two (17) are fixedly connected between the two conductive switches (5), and a guide wheel (15) is rotatably connected to the inside of the ceramic connecting seat (8). The ends of the two conductive switches (5) extend into the ceramic connector (8), and the ends of the two conductive switches (5) extend into the inner side of the guide wheel (15). A guide block (22) is fixed on each side that is far apart from each other. The inner wall of the guide wheel (15) is shaped to match the guide block (22). After the guide wheel (15) rotates, the rotating conductive switches (5) are squeezed close to each other at the ends. Two guide grooves are provided on the outer side of the guide wheel (15), and insulating pull ropes (6) with opposite directions are fixed in the two guide grooves respectively.

2. The flip-type disconnector according to claim 1, characterized in that: The ceramic support (4) has a fitted terminal block (3) and a connecting piece one (11) fixed on its inner side, and the connecting piece one (11) and the connecting piece two (13) are electrically connected.

3. The flip-type disconnector according to claim 2, characterized in that: The ceramic support (4) has an external perforation on the side facing the ceramic connector (8), and an insulating support plate (10) is rotatably connected to the inner side of the external perforation. The conductive switch (5) passes through the external perforation and is fixed to the insulating support plate (10).

4. The flip-type disconnector according to claim 3, characterized in that: The insulator (2) has a disconnected end portion at both the upper and lower ends. The end portion of the insulator (2) at the lower end is fixed to the base (1). The end portions of the two insulators (2) at the upper end on the outer side extend into the ceramic support (4) and pass through the fixed terminal (3) and the connecting piece (11).

5. The flip-type disconnector according to claim 4, characterized in that: A connecting assembly (9) is connected between the upper end of the insulator (2) located in the middle and the ceramic connecting seat (8). A ceramic support block is fixed on the inner bottom wall of the ceramic connecting seat (8), and the guide wheel (15) is supported above the ceramic support block.

6. The flip-type disconnector according to claim 5, characterized in that: A slot is provided at the parallel part of the conductive switch (5). A support cylinder (19) and a spring (20) are fixedly connected to the inner bottom wall of the ceramic connector (8). The support cylinder (19) is located inside the spring (20). A plug rod (18) is slidably connected inside the support cylinder (19). An auxiliary disk is included on the outside of the plug rod (18). The upper end of the spring (20) is supported on the lower side of the auxiliary disk. A pressure rail (16) for contacting the auxiliary disk is provided on one side of the guide wheel (15). The upper end of the plug rod (18) corresponds to the position range of the slot.

7. The flip-type disconnector according to claim 6, characterized in that: The bottom of the ceramic connector (8) is provided with a through hole, and the insulating pull rope (6) passes through the through hole and is fixedly connected to a connecting ring at its end.

8. The flip-type disconnector according to claim 7, characterized in that: The insulating spring sheet one (14) and the insulating spring sheet two (17) are made of an insulating rubber layer and a spring steel sheet. The insulating rubber layer is wrapped around the outside of the spring steel sheet, and the thickness of the insulating rubber layer on the outside of the spring steel sheet is 2-3.5 mm.

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