CN212365783U

CN212365783U - Linkage mechanism of moving contact of combined switch, combined switch and power distribution system

Info

Publication number: CN212365783U
Application number: CN202020563541.6U
Authority: CN
Inventors: 王钰啸
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-01-15
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a link gear of combined switch moving contact, the carousel is equipped with pivot and moving contact towards body one side, the pivot stretches out along the axial of carousel, the carousel edge is equipped with the constant head tank, body is equipped with mounting groove, fixed contact and location arch towards carousel one side, the carousel is rotatable to be installed on the body through pivot and mounting groove, the location arch with the constant head tank cooperation location; one side of the turntable, which faces the cross rod, is provided with a transmission column, and the cross rod is provided with a transmission groove matched with the transmission column. Through the link gear of combined switch moving contact of above-mentioned optimal design, compact structure through drive carousel rotation and axial displacement, realizes the break-make switching action of moving contact and fixed contact, and at this in-process, at carousel and this body connection in-process, the horizontal pole is relieved the transmission with the carousel and is connected to do not cause the influence to its break-make, realize that many branches break-make separation control switches, reduce the intelligent network deployment degree of difficulty of distribution network. The utility model also provides a combination switch and distribution system.

Description

Linkage mechanism of moving contact of combined switch, combined switch and power distribution system

Technical Field

The utility model relates to an intelligent power transmission and distribution technical field especially relates to a link gear, combination switch and distribution system of combination switch moving contact.

Background

At present, in a low-voltage transmission and distribution network, a phase change switch, a capacitance switching switch and a branch circuit breaker which are used in a centralized transmission and distribution scene such as a user side single-phase load phase change, a transformer side reactive compensation cabinet, a feeder line cabinet and the like can only independently control one corresponding path of load, and in view of actual working condition requirements, a plurality of same or similar phase change switches, switching switches and circuit breakers are required to be gathered and used in the same distribution scene, so that the phase change switches, the switching switches and the circuit breakers occupy larger space, and then in the process of intelligent power transmission and distribution networking, each phase change switch, capacitance switching switch or circuit breaker needs to occupy corresponding communication and control resources, and the difficulty of realizing the intelligent power transmission and distribution networking is increased to a certain extent.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a link gear, combination switch and distribution system of combination switch moving contact.

The utility model provides a pair of link gear of combination switch moving contact, include: the device comprises a first body, a turntable, a cross rod and a longitudinal rod;

the turntable is vertically arranged on one side of the first body, the cross rod is positioned on one side of the turntable, which is far away from the first body, and is arranged at an interval with the turntable, the cross rod is arranged in parallel with the turntable, and the longitudinal rod is connected with the turntable and is used for driving the turntable to move along the axial direction;

the side of the turntable, which faces the first body, is provided with a rotating shaft and a moving contact, the rotating shaft extends out along the axial direction of the turntable, the edge of the turntable is provided with a positioning groove, one side of the first body, which faces the turntable, is provided with a mounting groove, a fixed contact and a positioning bulge, the turntable is rotatably mounted on the first body through the rotating shaft and the mounting groove, and the positioning bulge is matched with the positioning groove for positioning;

one side of the turntable, which faces the cross rod, is provided with a transmission column, and the cross rod is provided with a transmission groove matched with the transmission column.

Preferably, the positioning protrusion is provided with obliquely arranged boosting surfaces along both sides of the circumferential direction of the turntable, and the distance between the two boosting surfaces is gradually increased towards the direction away from the rotating shaft.

Preferably, the first body is provided with a plurality of fixed contacts which are distributed along the circumference around the mounting groove, the turntable is provided with a plurality of positioning grooves, and each positioning groove corresponds to one fixed contact.

Preferably, the vertical rod is coaxial with the rotating shaft, the vertical electromagnet is located on one side, away from the first body, of the rotating disc, and the vertical electromagnet is electromagnetically connected with the vertical rod and used for driving the rotating disc to move axially through the vertical rod.

Preferably, still include vertical electro-magnet, the vertical pole perpendicular to pivot and horizontal pole setting, the vertical pole upper end is equipped with the promotion portion with transmission post complex, and vertical electro-magnet is located the vertical pole below and is used for through the electromagnetic drive vertical pole elevating movement in order to promote the carousel to rotate.

Preferably, the cross bar is provided with a plurality of transmission grooves which are sequentially arranged along the length direction.

Preferably, the horizontal rod transmission mechanism comprises a plurality of first bodies and a plurality of rotary tables, the plurality of first bodies are sequentially arranged along the extension direction of the horizontal rod, each rotary table is positioned between one first body and the horizontal rod, a plurality of transmission groove groups are arranged on the horizontal rod, each transmission groove group comprises a plurality of transmission grooves, and each transmission groove group is arranged corresponding to a transmission column of one rotary table.

Preferably, still include reset spring, reset spring is located between first body and the carousel, and reset spring both ends are connected with first body and carousel respectively.

Preferably, the device comprises two return springs, the two return springs are respectively positioned on two sides of the moving contact, and one end of each return spring is connected with the turntable and the end, far away from the moving contact, of each return spring is connected with the first body.

Preferably, the turntable is provided with a receiving groove for receiving the return spring.

In the utility model, the turntable is provided with a rotating shaft and a moving contact towards one side of a first body, the rotating shaft extends along the axial direction of the turntable, the edge of the turntable is provided with a positioning groove, the first body is provided with a mounting groove, a fixed contact and a positioning bulge towards one side of the turntable, the turntable is rotatably mounted on the first body through the rotating shaft and the mounting groove, and the positioning bulge is matched with the positioning groove for positioning; one side of the turntable, which faces the cross rod, is provided with a transmission column, and the cross rod is provided with a transmission groove matched with the transmission column. Through the link gear of the combined switch moving contact of above-mentioned optimal design, compact structure through drive carousel rotation and axial displacement, realizes the break-make switching action of moving contact and fixed contact, and at this in-process, at carousel and first body connected process, the horizontal pole is relieved the transmission with the carousel and is connected to do not cause the influence to its break-make, realize that many branches break-make separation control switches, reduce the intelligent network deployment degree of difficulty of distribution network.

The utility model also provides a combination switch, the link gear including foretell combination switch moving contact.

Preferably, the device further comprises a driving electromagnet assembly, wherein the driving electromagnet assembly comprises: the two-way movable iron core comprises a first body, a first fixed iron core, a second fixed iron core and a two-way movable iron core;

the first fixed iron core and the second fixed iron core are fixedly installed on the second body and sequentially arranged along the extension direction of the cross rod, one side of the first fixed iron core, facing the second fixed iron core, is provided with a first fixed coil, one side of the second fixed iron core, facing the first fixed iron core, is provided with a second fixed coil, the first fixed iron core and the second fixed iron core are arranged at intervals, the bidirectional moving iron core is positioned between the first fixed iron core and the second fixed iron core, the cross rod is connected with the bidirectional moving iron core, two sides of the bidirectional moving iron core are respectively provided with a first spring and a second spring, the first spring is positioned between the bidirectional moving iron core and the first fixed iron core, and the second spring is positioned between the bidirectional moving iron core;

preferably, the iron core further comprises a first unidirectional moving iron core, the second body is provided with a first limiting plate, the first limiting plate is located between the first fixed iron core and the bidirectional moving iron core, the first unidirectional moving iron core is located on one side, close to the first fixed iron core, of the first limiting plate, the first spring is located between the first unidirectional moving iron core and the bidirectional moving iron core, the third spring is arranged between the first unidirectional moving iron core and the first fixed iron core, and the first unidirectional moving iron core is provided with a first moving coil towards one side of the bidirectional moving iron core;

more preferably, the iron core is moved in the one-way direction of second, is equipped with the second limiting plate on the second body, and the second limiting plate is located between second fixed iron core and the two-way iron core that moves, and the one-way iron core that moves of second is located second limiting plate and is close to second fixed iron core one side, and the second spring is located between the one-way iron core that moves of second and the two-way iron core that moves, and the one-way iron core that moves of second is equipped with the fourth spring towards two-way iron core one side that moves, and the one-way iron core that moves of second is equipped with the.

The utility model discloses in, the combination switch that proposes replaces conventional step motor through the drive of drive electromagnet assembly, and through different coil break-make electricity, realizes two-way multi-state position switching of moving the iron core to drive horizontal pole drive carousel and rotate the switching station, for the motor drive mode, greatly reduced accessory cost improves the drive reliability.

The utility model discloses a distribution system is further provided, including above-mentioned combination switch.

The utility model discloses in, the distribution system that provides, its technological effect is similar with the link gear of above-mentioned combination switch moving contact, consequently no longer gives unnecessary details.

Drawings

Fig. 1 is a schematic structural diagram of a linkage mechanism of a moving contact of a combination switch provided by the present invention.

Fig. 2 is a schematic side view of a linkage mechanism of a moving contact of a combination switch.

Fig. 3 is a schematic structural diagram of linkage of a linkage mechanism of a moving contact of a combination switch.

Fig. 4 is a schematic structural diagram of a driving electromagnet assembly of a combination switch according to the present invention.

Fig. 5 is another schematic structural diagram of a driving electromagnet assembly of a combination switch according to the present invention.

Fig. 6 is another schematic structural diagram of a driving electromagnet assembly of a combination switch according to the present invention.

Detailed Description

As shown in fig. 1 to 3, fig. 1 is the utility model provides a link gear's of combination switch moving contact structural schematic, fig. 2 is the utility model provides a link gear's of combination switch moving contact side view structural schematic, fig. 3 is the utility model provides a structural schematic of linkage gear's of combination switch moving contact linkage, fig. 4 is the utility model provides a structural schematic of a combination switch's drive electromagnet assembly, fig. 5 is the utility model provides a another kind of structural schematic of combination switch's drive electromagnet assembly, fig. 6 is the utility model provides a further structural schematic of combination switch's drive electromagnet assembly.

Referring to fig. 1 to 3, the utility model provides a link gear of combination switch moving contact, include: the device comprises a first body 1, a turntable 2, a cross rod 3 and a longitudinal rod 4;

the rotary table 2 is vertically arranged on one side of the first body 1, the cross rod 3 is positioned on one side of the rotary table 2, which is far away from the first body 1, and is arranged at an interval with the rotary table 2, the cross rod 3 is arranged in parallel with the rotary table 2, and the longitudinal rod 4 is connected with the rotary table 2 and is used for driving the rotary table 2 to move along the axial direction;

a rotating shaft 5 and a moving contact 61 are arranged on one side of the rotating disc 2 facing the first body 1, the rotating shaft 5 extends out along the axial direction of the rotating disc 2, a positioning groove is arranged on the edge of the rotating disc 2, a mounting groove, a fixed contact 62 and a positioning bulge 7 are arranged on one side of the first body 1 facing the rotating disc 2, the rotating disc 2 can be rotatably mounted on the first body 1 through the rotating shaft 5 and the mounting groove, and the positioning bulge 7 is matched with the positioning groove for positioning;

the turntable 2 is provided with a transmission column 8 towards one side of the cross rod 3, and the cross rod 3 is provided with a transmission groove matched with the transmission column 8.

In the specific working process of the linkage mechanism of the movable contact of the combined switch, the longitudinal rod 4 drives the rotary table 2 to move towards the direction of the transverse rod along the axial direction, so that the positioning groove is separated from the positioning protrusion, meanwhile, the transmission column is matched with the transmission groove of the transverse rod, the transverse rod moves transversely according to the station requirements of the movable contact and the fixed contact of the rotary table, the rotary table is driven to rotate by the transmission column until the movable contact corresponds to the fixed contact, then the longitudinal rod drives the rotary table to move towards the direction close to the body, so that the transmission column is separated from the transmission groove of the transverse rod, and meanwhile, the positioning groove is matched with the positioning protrusion, so that the movable contact is; in the process, the positioning protrusion helps the turntable to position when moving towards the body, and ensures the electric connection reliability of the moving contact and the fixed contact.

In the present embodiment, in the proposed linkage mechanism for the movable contact of the combination switch, a rotating shaft and a movable contact are arranged on one side of a rotating disc, which faces a body, the rotating shaft extends along the axial direction of the rotating disc, a positioning groove is arranged on the edge of the rotating disc, an installation groove, a fixed contact and a positioning protrusion are arranged on one side of the body, which faces the rotating disc, the rotating disc is rotatably installed on the body through the rotating shaft and the installation groove, and the positioning protrusion is matched; one side of the turntable, which faces the cross rod, is provided with a transmission column, and the cross rod is provided with a transmission groove matched with the transmission column. Through the link gear of combined switch moving contact of above-mentioned optimal design, compact structure through drive carousel rotation and axial displacement, realizes the break-make switching action of moving contact and fixed contact, and at this in-process, at carousel and this body connection in-process, the horizontal pole is relieved the transmission with the carousel and is connected to do not cause the influence to its break-make, realize that many branches break-make separation control switches, reduce the intelligent network deployment degree of difficulty of distribution network.

In the specific embodiment of the positioning protrusion, the positioning protrusion 7 is provided with the boosting surfaces which are obliquely arranged along both sides of the circumferential direction of the turntable, and the distance between the two boosting surfaces is gradually increased towards the direction far away from the rotating shaft 5; when the turntable moves towards the body, the positioning protrusions play a role in circumferential adjustment on the circumferential position of the turntable, and accuracy of the electrical connection position of the moving contact and the fixed contact is improved.

In order to realize the multi-state switching process of the combination switch, in one embodiment, the first body 1 is provided with a plurality of fixed contacts 62, the plurality of fixed contacts 62 are distributed along the circumference around the mounting groove, the rotary disc 2 is provided with a plurality of positioning grooves, and each positioning groove is arranged corresponding to one fixed contact 62; the cross rod pushes the turntable to rotate, so that the moving contact and different fixed contact stations can be switched, and when the moving contact is matched with one fixed contact, the positioning protrusion is matched and positioned with one positioning groove.

Correspondingly, a plurality of moving contacts can be arranged on the turntable and matched with one fixed contact to realize the switching of a plurality of stations. Similarly, a plurality of positioning protrusions can be designed, and each positioning protrusion corresponds to one moving contact station.

Referring to fig. 2, in the process of driving the axial station of the turntable through the longitudinal rod, the vertical rod 4 and the rotating shaft 5 are coaxially arranged, the vertical electromagnet 9 is positioned on one side of the turntable 2, which is far away from the first body 1, and the vertical electromagnet 9 is electromagnetically connected with the longitudinal rod 4 and used for driving the turntable 2 to move axially through the longitudinal rod 4; the axial driving of the rotating disc through the longitudinal rod is realized through electromagnetic control.

In another embodiment of the vertical rod drive, the vertical rod 4 is arranged perpendicular to the rotating shaft 5 and the cross rod 3, the upper end of the vertical rod 4 is provided with a pushing part matched with the transmission column 8, and the longitudinal electromagnet 9 is positioned below the vertical rod 4 and used for driving the vertical rod 4 to move up and down through the electromagnet so as to push the turntable 2 to rotate.

Referring to fig. 3, in another embodiment for implementing a multi-state switching process of a combination switch, the combination switch includes a plurality of first bodies 1 and a plurality of rotating discs 2, the plurality of first bodies 1 are sequentially arranged along an extending direction of a cross bar 3, each rotating disc 2 is located between one first body 1 and the cross bar 3, a plurality of transmission groove sets are arranged on the cross bar 3, each transmission groove set includes a plurality of transmission grooves, and each transmission groove set is arranged corresponding to a transmission column 8 of one rotating disc 2; according to the requirement, the longitudinal rods are used for controlling the axial stations of the corresponding rotary discs, the transverse rods can simultaneously drive the rotary discs in transmission connection with the transverse rods to rotate, the circumferential stations of the rotary discs are switched, and therefore the on-off switching of a plurality of rotary disc moving contacts and body fixed contacts is achieved.

In order to facilitate the matching of the cross rod and the transmission column of the turntable, the cross rod 3 is provided with a plurality of transmission grooves which are sequentially arranged along the length direction, and when the turntable moves towards the cross rod, the transmission column is convenient to be matched with the nearest transmission groove.

In other specific embodiments, the device further comprises a return spring 10, the return spring 10 is located between the first body 1 and the turntable 2, and two ends of the return spring 10 are respectively connected with the first body 1 and the turntable 2; when the rotary table is driven to two sides, the torque generated by the return spring to the rotary body is opposite to the torque direction of the cross rod to the rotary body.

In a further embodiment, two return springs 10 may be disposed on the turntable, the two return springs 10 are respectively located at two sides of the movable contact 61, one end of each return spring 10 is connected to the turntable 2 and the end of each return spring away from the movable contact 61 is connected to the first body 1, and when the turntable rotates, the two return springs apply a return force to the turntable from two sides.

Further, the turntable 2 is provided with a receiving groove for receiving the return spring 10.

In another embodiment, in order to help the position of the movable contact to be positioned when the rotating disc rotates, magnetic adsorption assistance can be adopted between the rotating disc and the body.

The present embodiment further provides a combination switch, which includes the above-mentioned linkage mechanism of the moving contact 61 of the combination switch.

Referring to fig. 4-6, in order to ensure the reliable movement of the cross bar in the horizontal direction, in a specific design manner of the combination switch, the present embodiment further includes a driving electromagnet assembly for driving the horizontal position switching of the cross bar. However, the driving electromagnet assembly usually has two stations for switching on and off, and when a plurality of stations are arranged on the circumference of the turntable, the cross bar needs to be arranged in a corresponding transverse position state so as to drive the turntable to rotate to the plurality of stations.

Thus, in a particular design of the driving electromagnet assembly, the driving electromagnet assembly comprises: a second body 20, a first fixed iron core 21, a second fixed iron core 22 and a bidirectional movable iron core 23;

first fixed iron core 21 and second fixed iron core 22 fixed mounting just arrange in proper order along horizontal pole 3 extending direction on second body 20, first fixed iron core 21 is equipped with first fixed coil towards second fixed iron core 22 one side, second fixed iron core 22 is equipped with the second fixed coil towards first fixed iron core 21 one side, first fixed iron core 21 and second fixed iron core 22 interval set up, two-way movable iron core 23 is located between first fixed iron core 21 and the second fixed iron core 22, horizontal pole 3 is connected with two-way movable iron core 23, two-way movable iron core 23 both sides are equipped with first spring 26 and second spring 27 respectively, first spring 26 is located between two-way movable iron core 23 and the first fixed iron core 21 just, second spring 27 is located between two-way movable iron core 23 and the second fixed iron core 22.

In the specific driving process of the driving electromagnet assembly, when a first fixed coil on a first fixed iron core is electrified, the first fixed iron core performs magnetic adsorption on the bidirectional moving iron core under the action of an electric field, the bidirectional moving iron core moves to a first on-state towards the direction of the first fixed iron core, when a second fixed coil on a second fixed iron core is electrified, the second fixed iron core performs magnetic adsorption on the bidirectional moving iron core under the action of the electric field, the bidirectional moving iron core moves to a second on-state towards the direction of the second fixed iron core, when the first fixed coil and the second fixed coil are both powered off, the bidirectional moving iron core is under the action of a first spring and a second spring, the bidirectional moving iron core is in an intermediate off-state, the electromagnet three-state switching is realized, the transverse rod driving turntable is further driven to realize the three-state switching, and the three-state positions of the transverse rod correspond to three stations on the turntable.

When the carousel has four stations, correspondingly, the driving electromagnet subassembly still includes first one-way movable iron core 24, be equipped with first limiting plate on the second body 20, first limiting plate is located between first fixed iron core 21 and the two-way movable iron core 23, first one-way movable iron core 24 is located first limiting plate and is close to first fixed iron core 21 one side, first spring 26 is located between first one-way movable iron core 24 and the two-way movable iron core 23, be equipped with third spring 28 between first one-way movable iron core 24 and the first fixed iron core 21, first one-way movable iron core 24 is equipped with first movable coil towards two-way movable iron core 23 one side.

When a first fixed coil on the first fixed core is electrified, the first fixed core magnetically adsorbs the first unidirectional moving core under the action of an electric field, so that the first unidirectional moving core drives the bidirectional moving core to move towards the first fixed core to a first on-state, when a second fixed coil on the second fixed core is electrified, the second fixed core magnetically adsorbs the bidirectional moving core under the action of the electric field, so that the bidirectional moving core moves towards the second fixed core to a second on-state, at the moment, the first limiting plate limits the first unidirectional moving core to enable the first unidirectional moving core not to move towards the second fixed core along with the bidirectional moving core, when the first moving coil on the first unidirectional moving core is electrified, under the action of the electric field, the bidirectional moving core moves towards the first unidirectional moving core to a third on-state, and when the first fixed coil, the second fixed coil and the first moving coil are all powered off, the bidirectional moving iron core is in a middle discontinuous state under the action of the first spring, the second spring and the third spring, so that the four-state switching of the electromagnet is realized.

Correspondingly, in other specific embodiments, the present embodiment further includes a second unidirectional moving iron core 25, a second limiting plate is disposed on the second body 20, the second limiting plate is located between the second fixed iron core 22 and the bidirectional moving iron core 23, the second unidirectional moving iron core 25 is located on one side of the second limiting plate close to the second fixed iron core 22, the second spring 27 is located between the second unidirectional moving iron core 25 and the bidirectional moving iron core 23, a fourth spring 29 is disposed between the second unidirectional moving iron core 25 and the second fixed iron core 22, and a second moving coil is disposed on one side of the second unidirectional moving iron core 25 facing the bidirectional moving iron core 23.

In order to realize more state switching of the electromagnet assembly, in a further specific design mode of the unidirectional moving iron core, the first unidirectional moving iron core 24 comprises a plurality of first sub-iron cores, the second body 20 is provided with a plurality of first limiting plates, the plurality of first limiting plates are sequentially arranged between the first stator core 21 and the bidirectional moving iron core 23 at intervals, each first sub-iron core is positioned on one side of the first limiting plate close to the first stator core 21, a fourth spring is arranged between every two adjacent first sub-iron cores, and each first sub-iron core is provided with a first sub-coil; when each sub-coil is electrified, the bidirectional movable iron core moves to the state position corresponding to the electrified sub-coil under the action of the electric field, so that the flexible switching of the multi-state positions of the electromagnet is further realized, and the multi-station switching of the turntable is further realized.

In this embodiment, a power distribution system is further provided, which includes the combination switch.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a link gear of combination switch moving contact which characterized in that includes: the device comprises a first body (1), a turntable (2), a cross rod (3) and a longitudinal rod (4);

the rotary table (2) is vertically arranged on one side of the first body (1), the cross rod (3) is positioned on one side, away from the first body (1), of the rotary table (2) and is arranged at intervals with the rotary table (2), the cross rod (3) is arranged in parallel with the rotary table (2), and the longitudinal rod (4) is connected with the rotary table (2) and is used for driving the rotary table (2) to move axially;

a rotating shaft (5) and a moving contact (61) are arranged on one side, facing the first body (1), of the rotating disc (2), the rotating shaft (5) extends out along the axial direction of the rotating disc (2), a positioning groove is formed in the edge of the rotating disc (2), a mounting groove, a fixed contact (62) and a positioning bulge (7) are arranged on one side, facing the rotating disc (2), of the first body (1), the rotating disc (2) is rotatably mounted on the first body (1) through the rotating shaft (5) and the mounting groove, and the positioning bulge (7) is matched with the positioning groove for positioning;

one side of the turntable (2) facing the cross rod (3) is provided with a transmission column (8), and the cross rod (3) is provided with a transmission groove matched with the transmission column (8).

2. The linkage mechanism of the moving contact of the combined switch as claimed in claim 1, wherein the positioning protrusion (7) is provided with the boosting surfaces which are obliquely arranged along both sides of the circumferential direction of the turntable, and the distance between the two boosting surfaces is gradually increased towards the direction far away from the rotating shaft (5).

3. A linkage mechanism for movable contacts of a combined switch according to claim 1, wherein the first body (1) is provided with a plurality of fixed contacts (62), the plurality of fixed contacts (62) are circumferentially distributed around the mounting slot, the rotary disc (2) is provided with a plurality of positioning slots, and each positioning slot is provided corresponding to one fixed contact (62).

4. The linkage mechanism of the moving contact of the combined switch according to claim 1, further comprising a longitudinal electromagnet (9), wherein the longitudinal rod (4) is coaxially arranged with the rotating shaft (5), the longitudinal electromagnet (9) is located on one side of the rotary table (2) far away from the first body (1), and the longitudinal electromagnet (9) is electromagnetically connected with the longitudinal rod (4) and used for driving the rotary table (2) to move axially through the longitudinal rod (4).

5. A linkage mechanism for movable contacts of a combined switch according to claim 1, characterised in that the crossbar (3) is provided with a plurality of transmission slots arranged in sequence along the length direction.

6. A linkage mechanism for a movable contact of a combination switch according to claim 1, characterized in that it comprises a plurality of first bodies (1) and a plurality of rotary discs (2), wherein the plurality of first bodies (1) are arranged in sequence along the extension direction of the cross bar (3), each rotary disc (2) is arranged between one first body (1) and the cross bar (3), the cross bar (3) is provided with a plurality of transmission groove sets, each transmission groove set comprises a plurality of transmission grooves, and each transmission groove set is arranged corresponding to a transmission column (8) of one rotary disc (2).

7. The linkage mechanism of the moving contact of the combined switch according to claim 1, further comprising a return spring (10), wherein the return spring (10) is located between the first body (1) and the rotary plate (2), and two ends of the return spring (10) are respectively connected with the first body (1) and the rotary plate (2).

8. A linkage mechanism for a movable contact of a combined switch according to claim 1, characterized in that it comprises two return springs (10), the two return springs (10) are respectively located at two sides of the movable contact (61), one end of the return spring (10) is connected to the rotary disc (2) and the end far away from the movable contact (61) is connected to the first body (1).

9. A linkage mechanism for movable contacts of a combination switch according to claim 8, characterised in that the rotary plate (2) is provided with a housing for housing the return spring (10).

10. A combination switch characterized by comprising a linkage of the movable contacts of the combination switch according to any one of claims 1 to 9.

11. The combination switch of claim 10, further comprising a driving electromagnet assembly, the driving electromagnet assembly comprising: the two-way movable iron core comprises a second body (20), a first fixed iron core (21), a second fixed iron core (22) and a two-way movable iron core (23);

first fixed iron core (21) and second fixed iron core (22) fixed mounting just arrange in proper order along horizontal pole (3) extending direction on second body (20), first fixed iron core (21) are equipped with first fixed coil towards second fixed iron core (22) one side, second fixed iron core (22) are equipped with the second fixed coil towards first fixed iron core (21) one side, first fixed iron core (21) and second fixed iron core (22) interval set up, two-way movable iron core (23) are located between first fixed iron core (21) and second fixed iron core (22), horizontal pole (3) are connected with two-way movable iron core (23), two-way movable iron core (23) both sides are equipped with first spring (26) and second spring (27) respectively, first spring (26) are located between two-way movable iron core (23) and first fixed iron core (21) and, second spring (27) are located between two-way movable iron core (23) and second fixed iron core (22).

12. The combination switch of claim 11, further comprising a first unidirectional moving iron core (24), wherein a first limiting plate is disposed on the second body (20), the first limiting plate is disposed between the first fixed iron core (21) and the bidirectional moving iron core (23), the first unidirectional moving iron core (24) is disposed on one side of the first limiting plate close to the first fixed iron core (21), the first spring (26) is disposed between the first unidirectional moving iron core (24) and the bidirectional moving iron core (23), a third spring (28) is disposed between the first unidirectional moving iron core (24) and the first fixed iron core (21), and a first moving coil is disposed on one side of the first unidirectional moving iron core (24) facing the bidirectional moving iron core (23).

13. The combination switch of claim 11, further comprising a second unidirectional moving iron core (25), wherein a second limiting plate is disposed on the second body (20), the second limiting plate is disposed between the second fixed iron core (22) and the bidirectional moving iron core (23), the second unidirectional moving iron core (25) is disposed on one side of the second limiting plate close to the second fixed iron core (22), a second spring (27) is disposed between the second unidirectional moving iron core (25) and the bidirectional moving iron core (23), a fourth spring (29) is disposed between the second unidirectional moving iron core (25) and the second fixed iron core (22), and a second moving coil is disposed on one side of the second unidirectional moving iron core (25) facing the bidirectional moving iron core (23).

14. An electrical distribution system comprising a combination switch according to claim 11.