CN109244776B

CN109244776B - Circuit converter

Info

Publication number: CN109244776B
Application number: CN201811152860.1A
Authority: CN
Inventors: 冷杰
Original assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2023-06-13
Anticipated expiration: 2038-09-30
Also published as: CN109244776A

Abstract

A circuit transformer, the device comprises a circular insulating shell (3-1) and a T-shaped rotatable tee; when the circuit is used, the circuit is connected through rotation, so that the conversion between different circuits is realized under the condition of no complicated manual wiring and disconnection, three groups of different circuit connection modes can be realized, the use is convenient and flexible, and the popularization and the application are facilitated.

Description

Circuit converter

Technical Field

The invention provides a circuit converter suitable for circuit conversion.

Background

In many electrical fields, including wiring of actual construction, wiring of test circuits, and the like, especially many circuits need to be tested during testing, or a plurality of interrelated circuits need to be switched among many laboratories, at present, when testing and circuit switching need to be repeatedly performed, so that the test efficiency cannot be guaranteed, in addition, in many places, lights in different areas need to be controlled through a switch to be jointly or respectively lighted, for example, in a large space, a meeting room, a classroom, and other places, all lights are lighted when people cannot be fully seated, and obviously, the test is wasted, so that local lights are lighted when people are few, and the purpose of selectively switching is realized by adopting a plurality of switch modes at present.

Disclosure of Invention

The invention aims to: the invention provides a circuit converter, which aims to solve the problems existing in the prior art.

The technical scheme is as follows:

a circuit switching device comprising a circular insulating housing and a T-shaped rotatable tee;

the T-shaped rotatable three-way piece comprises a conductor central turntable, a first straight-through guide rod, a second straight-through guide rod and a vertical guide rod, wherein the first straight-through guide rod, the second straight-through guide rod and the vertical guide rod are all connected with the conductor central turntable, the axes of the first straight-through guide rod and the second straight-through guide rod are on the same straight line, and the axes of the vertical guide rod and the axes of the first straight-through guide rod and the second straight-through guide rod are vertical to each other so that the vertical guide rod, the first straight-through guide rod and the second straight-through guide rod form a T-shaped structure;

the first straight-through guide rod, the second straight-through guide rod and the vertical guide rod are of telescopic structures, the telescopic structures comprise conductor telescopic heads and a pipe body, the pipe body is of a hollow pipe-shaped structure (square pipes or round pipes can be |), the conductor telescopic heads are connected with the pipe body through conductor telescopic connecting rods, the front ends of the conductor telescopic connecting rods are connected with the conductor telescopic heads, the rear ends of the conductor telescopic connecting rods extend into the pipe body and can do telescopic actions of extending and retracting axially (axially relative to the pipe body) relative to the pipe body, the pipe body is of a two-layer sleeve structure, an inner pipe of the pipe body is a conductor pipe, the rear end of the inner pipe is connected with a conductor central turntable to form a communicating conductor structure, an outer pipe of the pipe body is an insulating pipe, and the outer pipe is sleeved outside the inner pipe and is tightly connected with the inner pipe; ( The outer tube may be manufactured by directly manufacturing an inner tube and an outer tube according to the size, then welding the inner tube with a conductor center turntable, then aligning the outer tube with the inner tube and knocking the outer tube, so that the outer tube is gradually sleeved outside the inner tube, the inner tube and the outer tube are in interference fit to achieve the purpose of tight connection, the common sense of how to determine the size of the interference fit belongs to the mechanical field is set, and the method is not repeated here, in addition, the outer tube periphery is manufactured into an external thread, then the inner wall of the outer tube is manufactured into an internal thread, then the outer tube is sleeved on the inner tube periphery in a screwing way, so that the inner tube and the outer tube are tightly connected through screw fit, and further, the outer tube periphery is directly coated with an insulating material in a way, and the method is not repeated here is that-! Which mode is selected, and the following modes are determined according to the needs! )

The front end opening end of the inner tube is provided with a conductor communication card, the conductor communication card is connected with the inner tube to form a conductor communication structure, the part of the conductor telescopic connecting rod extending into the inner tube is provided with a transverse conductor chuck, the radial direction of the transverse conductor chuck is perpendicular to the axial direction of the conductor telescopic connecting rod, and a gap is reserved between the radial periphery of the transverse conductor chuck and the diameter of the inner tube all the time; (i.e., the lateral conductor chuck is always out of contact with the inner tube.)

The outer wall of the conductor telescopic head is connected to an insulating sliding ring through a connecting rib, and the insulating sliding ring is sleeved on the outer wall of the outer tube and can move relative to the outer tube, wherein the moving direction is along the axial direction of the tube body; (the insulating sliding ring and the outer wall of the pipe body are in clearance fit or zero clearance fit which can just meet the relative movement, namely contact movement, and in order to ensure the smoothness of movement, a linear bearing can be arranged in the sliding ring.)

One side of the outer wall of the conductor center turntable (the outer part of the conductor center turntable is coated with an insulating coating to form an insulating outer wall) is connected with the inner wall of the circular insulating shell through a rotating shaft, the axes of the conductor center turntable, the rotating shaft and the circular insulating shell are the same, the conductor center turntable is of a structure capable of rotating with the axis, a driving gear is arranged on the other side of the outer wall of the conductor center turntable, the driving gear is coaxial with the conductor center turntable and can rotate relatively to the conductor center turntable, a rack is connected with the outer wall of the insulating sliding ring, the length direction of the rack is parallel to the axial direction of the pipe body, the rack is meshed with the driving gear, and the driving gear rotates to drive the sliding ring to move along the pipe body (the moving direction is parallel to the axial direction of the pipe body) so as to control the conductor telescopic head and the conductor telescopic connecting rod to do telescopic action relatively to the pipe body; a poking bar is arranged on the radial outer circumference of the driving gear, the length direction of the poking bar is the same as the radial direction of the driving gear, a poking bar is arranged on the outer side wall of the conductor center turntable, the length direction of the poking bar is in the same direction with the axial direction of the conductor center turntable (namely, is perpendicular to the radial direction of the conductor center turntable), and the poking bar can prop against the poking bar through rotation of the driving gear so as to poke the conductor center turntable to rotate together with the driving gear;

the side wall of the circular insulating shell is provided with three conductor holes which are uniformly distributed on the circumference of the circular insulating shell (the three conductor holes and the axis connecting line of the circular insulating shell form a T shape);

the conductor hole is a conical (trumpet-shaped) conductor hole with gradually reduced inner diameter from inside to outside, the conductor telescopic head is of a structure with the outer wall shape matched with the inner wall of the conductor hole, the front half part of the conductor hole is filled with a conductor material body at the position communicated with the outside, when the conductor telescopic head is used, the conductor telescopic head can be inserted into the conductor hole to be connected with the conductor material body, and when the conductor telescopic head is inserted into the conductor hole to be connected with the conductor material body, the transverse conductor chuck is connected with the conductor communication card; (conductor Material body connecting wire.)

A reset spring is arranged between the conductor telescopic head and the pipe body, and two ends of the reset spring are propped against the conductor telescopic head and the pipe body; (the contact positions of the conductor telescopic head and the pipe body and the reset spring are coated with an insulating material layer, namely the contact positions of the conductor telescopic head and the pipe body and the reset spring are insulating contact.)

When the conductor telescopic head is inserted into the conductor hole, the poking bar is not contacted with the poking bar, and when the driving gear rotates to completely separate the conductor telescopic head from the conductor hole, the poking bar is contacted with the poking bar; after the conductor telescopic head is completely separated from the conductor hole, the transverse conductor chuck is separated from the conductor communication card;

the axle center of the driving gear is led out of the rotating rod, and the rotating rod extends out of the circular insulating shell and is connected with the rotating handle, so that the driving gear rotates through the rotating handle;

when the conductor telescopic connecting rod is used, the rotating handle is rotated, the driving gear is meshed with the rack to move so as to pull the conductor telescopic head out of the conductor hole, at the moment, the reset spring is gradually compressed, after the conductor telescopic head is completely pulled out of the conductor hole, the conductor telescopic connecting rod is retracted into the pipe body, the transverse conductor chuck is separated from the conductor communication card, the conduction is disconnected, the poking bar rotates to the position of the poking bar and pokes the poking bar, the conductor central turntable rotates until the conductor telescopic head rotates to the next conductor hole, the rotating handle is loosened, the conductor telescopic head is jacked into the conductor hole to complete transposition under the action of the reset spring, and meanwhile, the conductor telescopic connecting rod extends out of the pipe body, and the transverse conductor chuck is contacted with the conductor communication card to form a conductor structure of the conductor central turntable, the inner pipe, the conductor telescopic connecting rod, the conductor telescopic head and conductor material body communication.

The rotating handle is of a straight rod-shaped structure, and when the conductor telescopic head is positioned in the conductor hole, the length direction of the straight rod-shaped structure is parallel to the axes of the first straight-through guide rod and the second straight-through guide rod.

The length of the rotating handle is larger than the diameter of the circular insulating shell, namely, two ends of the rotating handle protrude out of the edge of the circular insulating shell, the rotating handle also comprises a temporary positioning lock, and the temporary positioning lock comprises a lock shaft and a C-shaped lock catch; the lock shaft is arranged at two sides of the conductor hole or the sealing groove, the C-shaped lock catch is composed of two upright posts and a cross post, the upright posts are vertically arranged at two ends of the cross post to form a door-shaped structure, the upright posts are telescopic rod structures, the lower ends of the upright posts are connected with the lock shaft and can rotate by taking the lock shaft as a shaft, the axis of the lock shaft is vertical to the length direction of the rotating handle, and the top end of the part of the rotating handle protruding out of the circular insulating shell is provided with a convex clip;

when the conductor telescopic head is used, the conductor telescopic head stretches into the corresponding conductor hole or the corresponding sealing groove, at the moment, the rotating handle corresponds to the conductor hole or the sealing groove, then the upright post of the C-shaped lock catch is outwards stretched, the lock shaft is taken as the shaft to rotate, the transverse post passes over the convex clamp on the rotating handle, and then the upright post is downwards compressed to enable the bottom of the transverse post to be tightly attached to the upper end of the rotating handle and enable the transverse post to clamp the convex clamp.

The stand includes post and down tube, and the upper end of post is connected the diaphragm both ends, and the lower extreme of post stretches into down tube in and can do telescopic action for down tube.

The lower tube is internally provided with a pull-back spring, the upper end of the pull-back spring is connected with the part of the upper column extending into the lower tube, the lower end of the pull-back spring is connected with the bottom of the inner cavity of the lower tube (when the upper column extends, the pull-back spring is stretched, then the upper column is pulled back through the pull-back spring, the assembly of the pull-back spring belongs to the known technology, for example, a lower tube with two through ends is found, one end of the pull-back spring is welded on a baffle plate of the lower tube, then the other end of the pull-back spring is welded with one end of the upper column, then the other end of the upper column passes through the lower tube, and the baffle plate is welded on one end of the lower tube to finish the blocking of the lower tube.)

The front end of the conductor telescopic head is of a hemispherical smooth structure. (this allows relatively smooth movement along the inner wall of the circular insulating housing even when the conductor telescopic head abuts against the inner wall of the circular insulating housing)

The round insulating shell is used for allowing the rotating rod to pass through one end cover plate made of transparent materials, so that the rotating position can be conveniently seen.

The advantages and effects are that:

when the circuit converter is used, different circuits are connected through rotation, conversion among different circuits is realized under the condition of no complicated manual wiring and disconnection, three groups of different circuit connection modes can be realized, and the circuit converter is convenient and flexible to use and is beneficial to popularization and application.

Drawings

FIG. 1 is a schematic diagram of the overall structure;

FIG. 2 is a side cross-sectional view of FIG. 1;

FIG. 3 is a top view of the appearance;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view of a first use state;

FIG. 6 is a schematic diagram of a second state;

FIG. 7 is a third state diagram;

FIG. 8 is an overall closed state diagram;

fig. 9 is a state diagram of the locking process, and the broken line is the locking process.

Detailed Description

A circuit switching device comprising a circular insulating housing 3-1 and a T-shaped rotatable tee;

the T-shaped rotatable three-way piece comprises a conductor central turntable 3-2, a first straight-through guide rod 3-3, a second straight-through guide rod 3-4 and a vertical guide rod 3-5, wherein the first straight-through guide rod 3-3, the second straight-through guide rod 3-4 and the vertical guide rod 3-5 are all connected with the conductor central turntable 3-2, the axes of the first straight-through guide rod 3-3 and the second straight-through guide rod 3-4 are positioned on a straight line, and the axis of the vertical guide rod 3-5 is perpendicular to the axes of the first straight-through guide rod 3-3 and the second straight-through guide rod 3-4 so that the vertical guide rod 3-5, the first straight-through guide rod 3-3 and the second straight-through guide rod 3-4 form a T-shaped structure;

the first straight-through guide rod 3-3, the second straight-through guide rod 3-4 and the vertical guide rod 3-5 are all telescopic structures, each telescopic structure comprises a conductor telescopic head 3-6 and a pipe body 3-8, each pipe body 3-8 is of a hollow pipe-shaped structure (square pipes or round pipes can be |), each conductor telescopic head 3-6 is connected with each pipe body 3-8 through a conductor telescopic connecting rod 3-7, the front end of each conductor telescopic connecting rod 3-7 is connected with each conductor telescopic head 3-6, the rear end of each conductor telescopic connecting rod 3-7 extends into each pipe body 3-8 and can perform telescopic actions of extending and retracting in an axial direction (relative to the axial direction of each pipe body) relative to each pipe body 3-8, each pipe body 3-8 is of a two-layer sleeve structure, each inner pipe 3-8-2 of each pipe body 3-8 is of a conductor pipe, the rear end of each inner pipe 3-8-2 is connected with each conductor central turntable 3-2 to form a communicating conductor structure, each outer pipe 3-8-3 is of an insulating pipe, and each outer pipe 3-8-3 is sleeved outside each inner pipe 3-8-2 and is tightly connected with each inner pipe 3-8-2; ( The outer tube 3-8-3 may be manufactured by directly manufacturing the inner tube 3-8-2 and the outer tube 3-8-3 according to the size, then welding the inner tube 3-8-2 with the conductor center turntable 3-2, then aligning the outer tube with the inner tube 3-8-2 and knocking the outer tube so that the outer tube gradually covers the outer tube 3-8-2 of the inner tube 3-8-2, so that the inner tube 3-8-2 and the outer tube 3-8-3 achieve the purpose of tight connection by interference fit, as far as how to determine the size of the interference fit belongs to common knowledge in the mechanical field, the description is omitted here, in addition, in the manufacturing process, the outer periphery of the inner tube 3-8-2 is made into external threads, then the inner wall of the outer tube 3-8-3 is made into internal threads, then the outer tube 3-8-3 is sleeved on the periphery of the inner tube 3-8-2 in a screwing manner so that the inner tube 3-8-2 and the outer tube 3-8-3 are tightly connected by screw fit, in the other way is directly coated with the periphery of the inner tube 3-8-2, so that the outer tube 3-2 is not described here! Which mode is selected, and the following modes are determined according to the needs! )

The front end opening end of the inner tube 3-8-2 is provided with a conductor communicating card 3-8-1, the conductor communicating card 3-8-1 is connected with the inner tube 3-8-2 to form a conductor communicating structure, the part of the conductor telescopic connecting rod 3-7 extending into the inner tube 3-8-2 is provided with a transverse conductor chuck 3-7-1, the radial direction of the transverse conductor chuck 3-7-1 is perpendicular to the axial direction of the conductor telescopic connecting rod 3-7, and a gap M is always reserved between the radial periphery of the transverse conductor chuck 3-7-1 and the diameter of the inner tube 3-8-2; (i.e., the lateral conductor chuck 3-7-1 is not in contact with the inner tube 3-8-2 at all times).

The outer wall of the conductor telescopic head 3-6 is connected to an insulating sliding ring 3-10 through a connecting rib 3-9, and the insulating sliding ring 3-10 is sleeved on the outer wall of the outer tube 3-8-3 and can move relative to the outer tube 3-8-3, wherein the moving direction is along the axial direction of the tube body 3-8; (zero clearance fit which can just meet the relative movement is formed between the insulating sliding ring 3-10 and the outer wall of the pipe body 3-8).

One side of the outer wall of the conductor center turntable 3-2 (the outer part of the conductor center turntable 3-2 is coated with an insulating coating to form an insulating outer wall) is connected with the inner wall of the circular insulating shell 3-1 through a rotating shaft 3-11, the conductor center turntable 3-2, the rotating shaft 3-11 and the axis of the circular insulating shell 3-1 are the same, the conductor center turntable 3-2 is of a structure capable of rotating with the axis, a driving gear 3-12 is arranged on the other side of the outer wall of the conductor center turntable 3-2, the driving gear 3-12 is coaxial with the conductor center turntable 3-2 and can rotate relatively to the conductor center turntable 3-2, a rack 3-13 is connected with the outer wall of the insulating sliding ring 3-10, the length direction of the rack 3-13 is parallel to the axial direction of the pipe body 3-8, the rack 3-13 is meshed with the driving gear 3-12, and the movement of the rack 3-13 (the movement direction is parallel to the axial direction of the pipe body 3-8) is controlled by the driving gear 3-12 to move the sliding ring 3-10 along the pipe body 3-8 so as to control the telescopic conductor telescopic head 3-6 and the telescopic connecting rod 3-7 to extend and retract relatively to the pipe body 3-8; the radial outer circumference of the driving gear 3-12 is provided with a poking bar 3-12-1, the length direction of the poking bar 3-12-1 is the same as the radial direction of the driving gear 3-12, the outer side wall of the conductor center turntable 3-2 is provided with a poking bar 3-2-1, the length direction of the poking bar 3-2-1 is in the same direction with the axial direction of the conductor center turntable 3-2 (namely, is perpendicular to the radial direction of the conductor center turntable 3-2), and the poking bar 3-12-1 can prop against the poking bar 3-2-1 through the rotation of the driving gear 3-12 so as to poke the conductor center turntable 3-2 to rotate together with the driving gear 3-12;

the side wall of the circular insulating shell 3-1 is provided with three conductor holes 3-1-1, and the three conductor holes 3-1-1 are uniformly distributed on the circumference of the circular insulating shell 3-1 (the three conductor holes 3-1-1 and the axis connecting line of the circular insulating shell 3-1 form a T shape);

the conductor hole 3-1-1 is a conical (trumpet-shaped) conductor hole with gradually reduced inner diameter from inside to outside, the conductor telescopic head 3-6 is of a structure with the outer wall shape adapting to the inner wall of the conductor hole 3-1-1, the front half part of the conductor hole 3-1-1 is filled with a conductor material body 3-1-1 at the position communicated with the outside, when the conductor telescopic head 3-6 is used, the conductor telescopic head 3-6 can be inserted into the conductor hole 3-1-1 to be connected and conducted with the conductor material body 3-1-1, and when the conductor telescopic head 3-6 is inserted into the conductor hole 3-1-1 to be connected with the conductor material body 3-1-1, the transverse conductor chuck 3-7-1 is connected with the conductor communication card 3-8-1; (conductor Material body 3-1-1 connecting wire.)

A return spring 3-14 is arranged between the conductor telescopic head 3-6 and the pipe body 3-8, and two ends of the return spring 3-14 are in contact with the conductor telescopic head 3-6 and the pipe body 3-8; (the contact positions of the conductor extension head 3-6 and the pipe body 3-8 with the return spring 3-14 are coated with an insulating material layer, namely, the contact between the conductor extension head 3-6 and the pipe body 3-8 and the return spring 3-14 are insulating contact.)

When the conductor telescopic head 3-6 is inserted into the conductor hole 3-1-1, the poking bar 3-12-1 is not contacted with the poking bar 3-2-1, and when the driving gear 3-12 rotates to completely separate the conductor telescopic head 3-6 from the conductor hole 3-1-1, the poking bar 3-12-1 is contacted with the poking bar 3-2-1; after the conductor telescopic head 3-6 is completely separated from the conductor hole 3-1-1, the transverse conductor chuck 3-7-1 is separated from the conductor communication card 3-8-1;

the axle center of the driving gear 3-12 is led out of the rotating rod 3-12-2, the rotating rod 3-12-2 extends out of the circular insulating shell 3-1 and is connected with the rotating handle 3-12-3, and the driving gear 3-12 rotates through the rotating handle 3-12-3;

when the conductor telescopic connecting rod 3-7 is used, the rotary handle 3-12-3 is rotated, the driving gear 3-12 is meshed with the rack 3-13 to move so as to pull the conductor telescopic head 3-6 out of the conductor hole 3-1-1, at the moment, the reset spring is gradually compressed, after the conductor telescopic head 3-6 is completely pulled out of the conductor hole 3-1-1, the conductor telescopic connecting rod 3-7 is retracted into the pipe body 3-8, the transverse conductor chuck 3-7-1 is separated from the conductor communicating card 3-8-1, the conduction is disconnected, the stirring bar 3-12-1 is rotated to the position of the stirring bar 3-2-1 and stirs the stirring bar 3-2-1, the conductor central turntable 3-2 is rotated until the conductor telescopic head 3-6 is rotated to the position of the next conductor hole 3-1-1, the rotary handle 3-12-3 is loosened, under the effect of the reset spring, the conductor telescopic head 3-6 is jacked into the conductor hole 3-1-1 to finish transposition, at the same time, the conductor telescopic connecting rod 3-7 extends out of the pipe body 3-8, the transverse conductor chuck 3-7-8 is communicated with the conductor chuck 3-8, the conductor chuck 3-1-1 is communicated with the conductor 3-1, and the conductor telescopic head 3-1 is communicated with the conductor 3-1.

The rotating handle 3-12-3 is of a straight rod-shaped structure, and when the conductor telescopic head 3-6 is positioned in the conductor hole 3-1-1, the length direction of the straight rod-shaped structure is parallel to the axes of the first straight guide rod 3-3 and the second straight guide rod 3-4.

The length of the rotating handle 3-12-3 is larger than the diameter of the circular insulating shell 3-1, namely, two ends of the rotating handle 3-12-3 protrude out of the edge of the circular insulating shell 3-1, the rotating handle 3-12-3 also comprises a temporary positioning lock, and the temporary positioning lock comprises a lock shaft 3-1-4 and a C-shaped lock catch 3-1-5; the lock shaft 3-1-4 is arranged at two sides of the conductor hole 3-1-1 or the sealing groove 3-1-2, the C-shaped lock catch 3-1-5 is composed of two upright posts 3-1-5-1 and a transverse post 3-1-5-2, the upright posts are vertically arranged at two ends of the transverse post to form a door-shaped structure, the upright posts 3-1-5-1 are telescopic rod structures, the lower ends of the upright posts 3-1-5-1 are connected with the lock shaft 3-1-4 and can rotate by taking the lock shaft 3-1-4 as an axis (the axis of the lock shaft 3-1-4 is vertical to the length direction of the rotary handle 3-12-3), and the top end of the part of the rotary handle 3-12-3 protruding out of the circular insulating shell 3-1 is provided with a convex clip 3-12-3-2;

when the conductor stretching head 3-6 stretches into the corresponding conductor hole 3-1-1 or the sealing groove 3-1-2, at the moment, the rotating handle 3-12-3 corresponds to the conductor hole 3-1-1 or the sealing groove 3-1-2, then the upright post of the C-shaped lock catch 3-1-5 stretches outwards, the lock shaft 3-1-4 is taken as an axis to rotate, the transverse column 3-1-5-2 passes through the convex clamp 3-12-3-2 on the rotating handle 3-12-3, then the upright post is compressed downwards, so that the bottom of the transverse column 3-1-5-2 is tightly attached to the upper end of the rotating handle 3-12-3, the transverse column 3-1-5-2 clamps the convex clamp 3-12-3-2, and the inner sides of the upright posts are contacted, preferably tightly attached to the left side and the right side of the rotating handle 3-12-3, so that the rotating handle 3-12-3 is prevented from shaking. (e.g., left and right sides in fig. 4). (the state shown by the solid line in fig. 9 is a locked state, and the broken line is a rotation process).

The upright post 3-1-5-1 comprises an upper post 1 and a lower pipe 2, wherein the upper end of the upper post 1 is connected with two ends of the transverse post, and the lower end of the upper post 1 stretches into the lower pipe 2 and can stretch and retract relative to the lower pipe 2.

The lower tube 2 is internally provided with a pull-back spring, the upper end of the pull-back spring is connected with the part of the upper column 1 extending into the lower tube 2, the lower end of the pull-back spring is connected with the bottom of the inner tube cavity of the lower tube 2 (when the upper column 1 extends, the pull-back spring is stretched, then the upper column 1 is pulled back through the pull-back spring, the assembly of the pull-back spring belongs to the known technology, for example, a lower tube 2 with two through ends is found, one end of the pull-back spring is welded on a baffle plate of the lower tube 2, then the other end of the pull-back spring is welded with one end of the upper column 1, then the other end of the upper column 1 passes through the lower tube 2, and the baffle plate is welded on one end of the lower tube 2 to finish the sealing of the lower tube 2.)

The purpose of locking the turnbuckle 3-12-3 is to prevent the turnbuckle 3-12-3 from rotating due to misoperation or accidental touching during use, so that the circuit communication is affected and the use is affected

The front end of the conductor stretching head 3-6 is of a hemispherical smooth structure. (this makes it possible to move relatively smoothly along the inner wall of the circular insulating housing 3-1 even when the conductor extension head 3-6 abuts against the inner wall of the circular insulating housing 3-1).

The end cover plate 3-1-6 of the round insulating shell 3-1 for the rotating rod 3-12-2 to pass through is made of transparent materials, so that the rotating position can be conveniently seen.

As shown in fig. 5 to 8, the state shown in fig. 5 is an initial state, for example, the lamp is connected to the line a and the line C, the power is connected to the line B (there is the lamp connected to the line a and the line B, the power is connected to the line C), at this time, the position of the stem 3-12-3 is the state shown in fig. 3, at this time, both the lighting of the line a and the line C are lighted, at this time, the first state is reached, then the stem 3-12-3 in the transverse direction shown in fig. 3 is rotated counterclockwise, so that the driving gear 3-12 rotates relative to the conductor center turntable 3-2, at the same time, the engagement rack 3-13 moves under the engagement of the driving gear 3-12 to pull the conductor telescoping head 3-6 out of the conductor hole 3-1-1, at this time, the reset spring 3-14 is compressed, the transverse conductor chuck 3-7-1 on the conductor telescopic connecting rod 3-7 is disconnected with the conductor communicating card 3-8-1, at the moment, the connection of the two parts of the circuit is disconnected, namely the transverse conductor chuck 3-7-1 is disconnected with the conductor communicating card 3-8-1, the conductor telescopic head 3-6 is disconnected with the conductor material body 3-1-1, absolute insulation is ensured in the conversion process, so that safety is ensured, (even if the circular insulating shell 3-1 leaks electricity or even the circular insulating shell 3-1 is directly converted into conductive material, the condition of hurting people or firing due to electricity leakage can not occur in the conversion process), at the moment, the electric lamps of the circuit A and the circuit C are extinguished, and then the driving gear 3-12 is continuously rotated, the poking bar 3-12-1 contacts the poking bar 3-2-1 and is moved against the poking bar 3-2-1, so that the conductor center turntable 3-2 and the driving gear 3-12 rotate together, at this time, if the cover plate 3-1-6 is made of transparent materials, the rotating position can be observed, when the cover plate rotates to the position shown in fig. 6, the rotating handle 3-12-3 is loosened, under the action of the top force of the reset spring 3-14, the conductor telescopic head 3-6 is jacked into the conductor hole 3-1-1, as shown in fig. 6, at this time, the second straight-through guide rod 3-4 keeps the disconnection of the transverse conductor chuck 3-7-1 and the conductor communication card 3-8-1 because the conductor telescopic head 3-6 always abuts against the inner wall of the circular insulating shell 3-1, at this time, the second straight-through guide rod 3-4 is disconnected, at this time, the conductor telescopic head 3-6 of the vertical guide rod 3-5 is connected with the C-channel electric lamp, at this time, the first straight-through guide rod 3-3B is connected with the electric lamp, the C channel is lighted, and at this time, the second channel is not lighted.

Then the rotating handle 3-12-3 is continuously rotated anticlockwise, so that the first straight-through guide rod 3-3, the second straight-through guide rod 3-4 and the vertical guide rod 3-5 reach the state shown in fig. 7, at the moment, the A-path electric lamp is lighted, the C-path electric lamp is not lighted, and at the moment, the third state is realized;

the first straight-through guide rod 3-3, the second straight-through guide rod 3-4 and the vertical guide rod 3-5 are rotated to the state shown in fig. 8, and at this time, the A, C electric lamps are not lighted. Which line is selected to rotate the rotating handle 3-12-3 according to the requirement.

In addition, if the cover plate 3-1-6 is not made of transparent materials in the rotating process, when the conductor telescopic head 3-6 is about to rotate to the position of the next conductor hole 3-1-1, the conductor telescopic head 3-6 can be pushed forward by loosening the rotating handle 3-12-3, if the position is not right, the rotating handle 3-12-3 is slowly screwed until the conductor telescopic head 3-6 is pushed into the conductor hole 3-1-1, and then the conductor telescopic head is loosened until the conductor telescopic head 3-6 is pushed into the conductor hole 3-1, so that the intuitiveness is not the same as that of the transparent materials, but the intuitiveness is not difficult to realize. The transparent cover plate can be made of transparent thickened acrylic plates or toughened glass, when the round insulating shell is assembled, an inner spigot is adopted in the opening of the round insulating shell 3-1, then holes are drilled in the periphery of the cover plate, the cover plate is covered at the spigot (shown in fig. 2), then bolts are utilized to penetrate through holes in the periphery of the cover plate, the cover plate is fixed with the round insulating shell 3-1, waterproof weather-proof glue is then applied to the periphery of the cover plate at the position where the cover plate contacts with the round insulating shell 3-1, and the same glue is also applied to the periphery of the bolts, so that the round insulating shell is assembled. Or more directly, the circular insulating shell 3-1 is also made of transparent materials.

The components inside the circular insulating shell 3-1 are all taken to a factory and processed according to the size of a drawing, then the insulating sliding ring 3-10 is sleeved on the pipe body 3-8, the insulating sliding ring 3-10 can be guaranteed to accurately move, then the return spring 3-14 is sleeved outside the conductor telescopic connecting rod 3-7, one end of the return spring 3-14 is connected with the pipe body 3-8, the connection mode can be selected, a fixed ring can be manufactured on the pipe body 3-8, then the return spring 3-14 directly hooks the fixed ring for connection, then the conductor telescopic head 3-6 is connected with the conductor telescopic connecting rod 3-7, then the conductor telescopic connecting rod 3-7 extends into the pipe body 3-8, the other end of the return spring 3-14 is connected with the conductor telescopic head 3-6, and the connection mode is the same as that of the pipe body 3-8; in order to ensure insulation, an insulating material spring can be directly adopted, or an insulating material is coated outside the spring;

then, connecting the two ends of the connecting rib 3-9 with the conductor telescopic head 3-6 and the insulating sliding ring 3-10 respectively, wherein the connection can be realized by adopting welding, screw threads or other known modes as long as the connection can be realized;

for example, an outer ring of the insulating sliding ring 3-10 can be embedded with a layer of iron ring, then the iron ring is welded with the iron connecting rib 3-9, the insulating sliding ring 3-10 is made of non-conductive material, the insulating sliding ring 3-10 can be embedded with the iron ring by adopting interference fit or screw fit, and then the other end of the connecting rib 3-9 is directly welded with the iron conductor stretching head 3-6;

then the toothless end of the rack 3-13 is connected with the insulating sliding ring 3-10 in various connection modes, for example, the rack 3-13 can be made of insulating materials which are the same as those of the insulating sliding ring 3-10, such as hard plastics, and can be welded in a similar hot melting mode during connection, namely, the toothless end of the rack 3-13 is melted and then is directly adhered to the insulating sliding ring 3-10, or the insulating sliding ring 3-10 and the rack 3-13 are integrally formed, then the toothed end of the rack 3-13 is meshed with the driving gear 3-12, after all the assembly is completed, the rotating shaft 3-11 is connected with the conductor central turntable 3-2, and when the reset spring 3-14 is naturally stretched, the distance from the outer top point of each conductor extension head 3-6 to the center of the driving gear 3-12 is larger than the inner wall of the circular insulating shell 3-1, so that the jacking of the conductor extension head 3-6 can be ensured;

then, two persons can find out, one person pushes the conductor telescopic heads 3-6 inwards by fingers, then the other person cooperates to put the assembled first straight-through guide rod 3-3, second straight-through guide rod 3-4 and vertical guide rod 3-5 into the circular insulation shell 3-1 and assemble with the bearing of the rotating shaft 3-11, then the conductor telescopic heads 3-6 are loosened to reset and jack the conductor holes 3-1-1, then the cover plate 3-1-6 is covered to finish assembly, of course, in order to ensure the assembly precision and meet the labor-saving requirement, the two insulation sliding rings 3-10 on the same straight line can be pushed inwards, namely the two insulation sliding rings 3-10 are pushed inwards in opposite directions, so that the reset springs 3-14 are compressed, then a transverse tie is temporarily welded between the two insulation sliding rings 3-10, then the third insulation sliding ring 3-10 is pushed inwards, then a vertical tie is temporarily welded between the third insulation sliding ring 3-10 and the transverse tie, thus the conductor telescopic heads 3-6 are covered, the reset spring 3-10 is in a state, the whole insulation sliding ring 3-6 is not compressed, and the whole insulation sliding ring 3-10 is not fully assembled, and the whole insulation sliding ring is not fully assembled.

The circuit switching device is reasonable in structure, convenient to use and beneficial to popularization and application.

Claims

1. The circuit converter is characterized in that: the circuit converter comprises a circular insulating shell (3-1) and a T-shaped rotatable tee;

the T-shaped rotatable tee joint part comprises a conductor center rotary table (3-2), a first straight-through guide rod (3-3), a second straight-through guide rod (3-4) and a vertical guide rod (3-5), wherein the first straight-through guide rod (3-3), the second straight-through guide rod (3-4) and the vertical guide rod (3-5) are connected with the conductor center rotary table (3-2), the axes of the first straight-through guide rod (3-3) and the second straight-through guide rod (3-4) are on the same straight line, and the axis of the vertical guide rod (3-5) is perpendicular to the axes of the first straight-through guide rod (3-3) and the second straight-through guide rod (3-4) so that the vertical guide rod (3-5) forms a T-shaped structure with the first straight-through guide rod (3) and the second straight-through guide rod (3-4);

the first straight-through guide rod (3-3), the second straight-through guide rod (3-4) and the vertical guide rod (3-5) are of telescopic structures, each telescopic structure comprises a conductor telescopic head (3-6) and a pipe body (3-8), each pipe body (3-8) is of a hollow pipe-shaped structure, each conductor telescopic head (3-6) is connected with each pipe body (3-8) through a conductor telescopic connecting rod (3-7), the front end of each conductor telescopic connecting rod (3-7) is connected with each conductor telescopic head (3-6), the rear end of each conductor telescopic connecting rod (3-7) stretches into each pipe body (3-8) and can axially stretch out and retract relative to each pipe body (3-8), each pipe body (3-8) is of a two-layer sleeve structure, each inner pipe (3-8-2) of each pipe body (3-8) is a conductor pipe, the rear end of each inner pipe (3-8-2) is connected with each conductor central turntable (3-2) to form a communicated conductor structure, and each inner pipe (3-8-3) of each pipe body (3-8) is tightly connected with each outer pipe (3-8-2) in a sleeved mode;

the front end opening end of the inner tube (3-8-2) is provided with a conductor communication card (3-8-1), the conductor communication card (3-8-1) is connected with the inner tube (3-8-2) to form a conductor communication structure, a part of the conductor telescopic connecting rod (3-7) extending into the inner tube (3-8-2) is provided with a transverse conductor chuck (3-7-1), the radial direction of the transverse conductor chuck (3-7-1) is perpendicular to the axial direction of the conductor telescopic connecting rod (3-7), and a gap (M) is reserved between the radial periphery of the transverse conductor chuck (3-7-1) and the diameter of the inner tube (3-8-2) all the time;

the outer wall of the conductor telescopic head (3-6) is connected to an insulating sliding ring (3-10) through a connecting rib (3-9), the insulating sliding ring (3-10) is sleeved on the outer wall of the outer tube (3-8-3) and can move relative to the outer tube (3-8-3), and the moving direction is along the axial direction of the tube body (3-8);

one side of the outer wall of the conductor center turntable (3-2) is connected with the inner wall of the circular insulating shell (3-1) through a rotating shaft (3-11), the conductor center turntable (3-2), the rotating shaft (3-11) and the axis of the circular insulating shell (3-1) are the same, the conductor center turntable (3-2) is of a structure capable of rotating with the axis, a driving gear (3-12) is arranged on the other side of the outer wall of the conductor center turntable (3-2), the driving gear (3-12) is coaxial with the conductor center turntable (3-2) and can rotate relatively to the conductor center turntable (3-2), a rack (3-13) is connected to the outer wall of the insulating sliding ring (3-10), the length direction of the rack (3-13) is parallel to the axial direction of the pipe body (3-8), the rack (3-13) is meshed with the driving gear (3-12), and the movement control sliding ring (3-10) of the rack (3-13) is driven to move along the pipe body (3-8) through the rotation of the driving gear (3-12) so as to control the conductor extension and retraction movement of the conductor extension head (3-6) and the conductor extension rod (3-7) to extend and retract relative to the pipe body (3-7); a shifting bar (3-12-1) is arranged on the radial outer circumference of the driving gear (3-12), the length direction of the shifting bar (3-12-1) is the same as the radial direction of the driving gear (3-12), a shifting bar (3-2-1) is arranged on the outer side wall of the conductor center rotary table (3-2), the length direction of the shifting bar (3-2-1) is in the same direction with the axial direction of the conductor center rotary table (3-2), and the shifting bar (3-12-1) can prop against the shifting bar (3-2-1) through the rotation of the driving gear (3-12), so that the conductor center rotary table (3-2) and the driving gear (3-12) can be shifted to rotate together;

the side wall of the circular insulating shell (3-1) is provided with three conductor holes (3-1-1), and the three conductor holes (3-1-1) are uniformly distributed on the circumference of the circular insulating shell (3-1);

the conductor hole (3-1-1) is a conical conductor hole with gradually reduced inner diameter from inside to outside, the conductor telescopic head (3-6) is of a structure with the outer wall shape being matched with the inner wall of the conductor hole (3-1-1), the conductor material body (3-1-1) is filled at the position, communicated with the outside, of the front half part of the conductor hole (3-1-1), when the conductor telescopic head (3-6) is used, the conductor telescopic head can be inserted into the conductor hole (3-1-1) to be connected with the conductor material body (3-1-1), and when the conductor telescopic head (3-6) is inserted into the conductor hole (3-1-1) to be connected with the conductor material body (3-1-1), the transverse conductor chuck (3-7-1) is connected with the conductor communication card (3-8-1);

a return spring (3-14) is arranged between the conductor telescopic head (3-6) and the pipe body (3-8), and two ends of the return spring (3-14) are propped against the conductor telescopic head (3-6) and the pipe body (3-8);

when the conductor telescopic head (3-6) is inserted into the conductor hole (3-1-1), the poking bar (3-12-1) is not contacted with the poking bar (3-2-1), and when the driving gear (3-12) rotates to completely separate the conductor telescopic head (3-6) from the conductor hole (3-1-1), the poking bar (3-12-1) is contacted with the poking bar (3-2-1); after the conductor telescopic head (3-6) is completely separated from the conductor hole (3-1-1), the transverse conductor chuck (3-7-1) is separated from the conductor communication card (3-8-1);

the axle center of the driving gear (3-12) is led out of the rotating rod (3-12-2), the rotating rod (3-12-2) extends out of the circular insulating shell (3-1) and is connected with the rotating handle (3-12-3), and the driving gear (3-12) rotates through the rotating handle (3-12-3);

when the conductor telescopic connecting rod (3-7) is retracted inwards of the pipe body (3-8) after the conductor telescopic head (3-6) is completely pulled out of the conductor hole (3-1-1), the transverse conductor chuck (3-7-1) is separated from the conductor communicating card (3-8-1), the conduction is disconnected, the poking bar (3-12-1) rotates to the position of the poking bar (3-2-1) and pokes the poking bar (3-2-1) to enable the conductor central turntable (3-2) to rotate until the conductor telescopic head (3-6) rotates to the position of the next conductor hole (3-1-1), the rotating handle (3-12-3) is loosened, the conductor telescopic head (3-6) is jacked into the conductor hole (3-1) to be completely connected with the conductor telescopic head (3-1) under the action of the reset spring, and simultaneously the conductor telescopic head (3-1) is completely connected with the conductor chuck (3-7-1) and extends out of the conductor chuck (3-8-1) to the conductor communicating card (3-8-1), forming a conductor structure in which a conductor central turntable (3-2), an inner tube (3-8-2), a conductor telescopic connecting rod (3-7), a conductor telescopic head (3-6) and a conductor material body (3-1-1-1) are communicated;

the length of the rotating handle (3-12-3) is larger than the diameter of the circular insulating shell (3-1), namely, two ends of the rotating handle (3-12-3) protrude out of the edge of the circular insulating shell (3-1), the rotating handle (3-12-3) also comprises a temporary positioning lock, and the temporary positioning lock comprises a lock shaft (3-1-4) and a C-shaped lock catch (3-1-5); the lock shaft (3-1-4) is arranged at two sides of the conductor hole (3-1-1) or the sealing groove (3-1-2), the C-shaped lock catch (3-1-5) is composed of two upright posts (3-1-5-1) and a transverse post (3-1-5-2), the upright posts are vertically arranged at two ends of the transverse post to form a door-shaped structure, the upright posts (3-1-5-1) are telescopic rod structures, the lower ends of the upright posts (3-1-5-1) are connected with the lock shaft (3-1-4) and can rotate by taking the lock shaft (3-1-4) as an axis, the axis of the lock shaft (3-1-4) is perpendicular to the length direction of the rotary handle (3-12-3), and the top end of the part of the rotary handle (3-12-3) protruding out of the circular insulating shell (3-1) is provided with the convex clip (3-12-3-2);

when the conductor telescopic head (3-6) is used, the conductor telescopic head stretches into the corresponding conductor hole (3-1-1) or the sealing groove (3-1-2), at the moment, the rotary handle (3-12-3) corresponds to the conductor hole (3-1-1) or the sealing groove (3-1-2), then the upright post of the C-shaped lock catch (3-1-5) is outwards stretched, the lock shaft (3-1-4) is used as an axis to rotate, the transverse column (3-1-5-2) passes through the protruding clamp (3-12-3-2) on the rotary handle (3-12-3), then the upright post is downwards compressed to enable the bottom of the transverse column (3-1-5-2) to be tightly attached to the upper end of the rotary handle (3-12-3) and enable the transverse column (3-1-5-2) to clamp the protruding clamp (3-12-3-2), and the inner side of the upright post is contacted with the left side and the right side of the rotary handle (3-12-3).

2. The circuit transformer according to claim 1, wherein: the upright post (3-1-5-1) comprises an upper post (1) and a lower pipe (2), the upper end of the upper post (1) is connected with two ends of the transverse post, and the lower end of the upper post (1) stretches into the lower pipe (2) and can stretch and retract relative to the lower pipe (2);

a pull-back spring is arranged in the lower pipe (2), the upper end of the pull-back spring is connected with the part of the upper column (1) extending into the lower pipe (2), and the lower end of the pull-back spring is connected with the bottom of the inner cavity of the lower pipe (2).

3. The circuit transformer according to claim 1, wherein: the rotating handle (3-12-3) is of a straight rod-shaped structure, and when the conductor telescopic head (3-6) is positioned in the conductor hole (3-1-1), the length direction of the straight rod-shaped structure is parallel to the axes of the first straight-through guide rod (3-3) and the second straight-through guide rod (3-4).

4. The circuit transformer according to claim 1, wherein: the front end of the conductor telescopic head (3-6) is of a hemispherical smooth structure.

5. The circuit transformer according to claim 1, wherein: the end cover plate (3-1-6) of the round insulating shell (3-1) for the rotating rod (3-12-2) to pass through is made of transparent materials, so that the rotating position can be conveniently seen.