CN220672412U - Moving contact assembly and isolating switch - Google Patents

Abstract

The utility model provides a moving contact subassembly and isolator, isolator includes operating unit and a plurality of switch unit, is equipped with in every switch unit moving contact subassembly, moving contact subassembly includes contact support and moving contact, be equipped with in the contact support and be used for holding the mounting hole of moving contact, the moving contact cartridge is in the mounting hole, the moving contact is equipped with the contact plate that stretches to the mounting hole outside, the mounting hole includes two blocking surfaces that set up relatively along first direction to and two installation faces that set up relatively along the second direction, the moving contact can insert along the third direction between two blocking surfaces, first direction, second direction and third direction are orthogonal relation each other, wherein at least one the installation face be equipped with round pin axle complex round pin axle mounting hole, the round pin axle can pass round pin axle mounting hole and insert in the moving contact, make the moving contact is supported through round pin axle and contact and is rotated and be connected, two blocking surfaces are used for blocking the moving contact respectively.

Description

Moving contact assembly and isolating switch

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to a moving contact assembly and an isolating switch.

Background

In order to meet the increasing customer demands of the conventional isolating switch, the conductive loop is improved to be in soft connection, so that the assembly difficulty is high, if the conductive sheet is connected with the wiring board through the soft connection copper wire, the integrated conductive sheet, the soft connection copper wire and the wiring board are difficult to be installed into the contact support, and if the conductive sheet is installed into the contact support and then welded with the soft connection copper wire, the installation and welding difficulty is high, and the conductive sheet needs to be long enough to extend out of the contact support for welding. In addition, when the switch is opened and closed, the contact support in the switch unit drives the contact to rotate, and as one end of the conducting strip is in soft connection, the degree of freedom of the conducting strip can be limited only by the contact support, so that the reliability is poor, and the assembly difficulty is high.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provides a moving contact assembly and an isolating switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a moving contact assembly, includes contact support and moving contact, be equipped with the mounting hole that is used for holding the moving contact in the contact support, the moving contact cartridge is in the mounting hole, the moving contact is equipped with the contact plate that stretches to the mounting hole outside, the mounting hole includes two blocking surfaces that set up relatively along first direction to and two installation faces that set up relatively along the second direction, the moving contact can be followed the third direction and inserted between the two blocking surfaces, first direction, second direction and third direction are orthogonal relation each other, wherein at least one the installation face is equipped with round pin axle mounting hole of round pin axle complex, the round pin axle can be followed the second direction and passed the round pin axle mounting hole is inserted in the moving contact, makes the moving contact is supported through round pin axle and contact and is rotated and be connected, two blocking surfaces are used for blocking the moving contact rotation respectively.

Preferably, one of the two mounting surfaces is provided with the pin shaft mounting hole, the other mounting surface is provided with the positioning groove, the pin shaft comprises a mounting section and an inserting section, and a supporting section arranged between the mounting section and the inserting section, the mounting section and the inserting section are respectively inserted into the pin shaft mounting hole and the positioning groove to be matched, and the supporting section is inserted into the moving contact to be matched.

Preferably, the moving contact comprises two contact plates which are oppositely arranged, a partition plate is arranged between the two contact plates, a fourth limiting hole is formed in the partition plate, and the fourth limiting hole is used for a pin shaft to pass through.

Preferably, limiting plates are respectively arranged on two sides of the partition board, limiting grooves are respectively arranged on two opposite blocking surfaces of the mounting hole, and the limiting plates on two sides of the partition board are respectively inserted into the limiting grooves on the two blocking surfaces for limiting fit.

Preferably, one end of the moving contact is matched with the fixed contact, the other end of the moving contact is connected with the wiring board through a flexible connection, one end of the moving contact matched with the fixed contact is inserted from one end of the mounting hole close to the limiting groove, the moving contact extends out from the other end of the mounting hole, the size of the mounting hole close to one end of the limiting groove is larger than that of the other end of the mounting hole, one end of the contact plate close to the limiting groove is connected with the flexible connection, and one end of the contact plate connected with the flexible connection is located in the mounting hole.

Preferably, the two contact plates are respectively connected with the flexible connection, the partition plate comprises a first isolation part and a second isolation part, the first isolation part is arranged between the two contact plates, and the second isolation part is arranged between the flexible connection of the two contact plates.

Preferably, the moving contact comprises two clamping plates which are oppositely arranged, the two contact plates are arranged between the two clamping plates, two side plates are respectively arranged on each clamping plate, the two side plates on each clamping plate are oppositely arranged between the contact plates and blocking surfaces on two sides, the blocking surfaces on two sides respectively block the moving contact to rotate through the side plates, a third isolation part is arranged on one side, far away from the second isolation part, of the first isolation part, and the third isolation part is used for being inserted between the two opposite clamping plates.

Preferably, the outside of at least one splint is equipped with the shell fragment, the static contact can insert between two contact plates, the shell fragment is used for driving splint promotion contact plate and compresses tightly the static contact, be equipped with first spacing hole, second spacing hole and dodge the hole on contact plate, splint and the shell fragment respectively, first spacing hole and second spacing hole are used for the round pin axle to pass respectively.

Preferably, the contact plate, the clamping plate and the elastic sheet are respectively provided with a connecting hole for the connecting shaft to pass through, two ends of the connecting shaft are respectively provided with a limiting structure, and the limiting structures at the two ends are used for limiting the contact plate, the clamping plate and the elastic sheet on the connecting shaft.

According to the movable contact assembly, the movable contact is rotatably arranged on the contact support through the pin shaft, the movable contact can be limited to move in the third direction, and the two opposite blocking surfaces of the mounting hole block the movable contact from rotating, so that the movable contact is arranged on the contact support, the movable contact assembly has the characteristics of simple structure, small number of parts and high mounting reliability, the mounting difficulty can be reduced, the movable contact can be connected with a corresponding wiring board through soft connection, then the movable contact with the soft connection is inserted into the mounting hole, and the movable contact and the soft connection cannot interfere with the blocking surfaces and the pin shafts in the orthogonal direction.

In addition, the limiting plate not only can increase the area of the baffle and improve the effect of the baffle, but also can limit the freedom degree of the moving contact through the baffle, two blocking surfaces of the mounting hole and two opposite groove walls in the limiting groove, and limit the sixth freedom degree through the pin shaft, and the limiting plate is in limiting fit with the limiting groove on the contact support, so that the limiting effect of limiting the moving contact can be achieved.

In addition, the baffle is equipped with the second isolation part, sets up between the soft connection that two contact plates link to each other for the degree of freedom of restriction conducting strip improves the reliability.

The utility model also provides an isolating switch, which comprises an operating unit and a plurality of switch units, wherein each switch unit is internally provided with the movable contact assembly, the operating unit is used for driving the contact support of the movable contact assembly in the switch unit to rotate, the two ends of the contact support are respectively provided with an inserting structure and a groove structure, a pin shaft mounting hole is arranged at the bottom of the groove structure, one end of a pin shaft, which is far away from the inserting structure, is positioned in the groove structure, and the inserting structure on one contact support in two adjacent switch units is used for being inserted into the groove structure of the other contact support to block the pin shaft from moving.

According to the isolating switch, the inserting structures and the groove structures are respectively arranged at the two ends of the contact support, so that linkage of two adjacent contact supports can be realized, and the pin shaft in one switch unit can be limited to move by the inserting structure of the other switch unit.

Drawings

FIG. 1 is a schematic diagram of the structure of an isolating switch of the present utility model;

FIG. 2 is a schematic diagram of the structure of the switch unit of the present utility model;

FIG. 3 is a schematic view of the contact support, moving contact and spacer cooperation of the present utility model;

FIG. 4 is a schematic view of the structure of the contact support of the present utility model;

FIGS. 5-6 are cross-sectional views of the utility model with the contact support, moving contact and spacer mated;

FIG. 7 is a schematic view of the structure of the moving contact of the present utility model;

FIG. 8 is an exploded view of the moving contact of the present utility model;

FIG. 9 is a schematic view of the structure of the separator of the present utility model;

FIG. 10 is a schematic view of the structure of the upper insert structure of the contact support of the present utility model;

FIG. 11 is a schematic view of the structure of two adjacent contacts of the present utility model in supporting engagement;

in the figure, A, an operation unit; B. a switching unit; 1. a contact support; 2. a moving contact; 3. a stationary contact; 4. a pin shaft; 5. a partition plate; 50. a fourth limiting hole; 6. a limiting plate; 7. soft connection; 60. a limit groove; 61. a first surface; 62. a second surface; 63. a third surface; 51. a first isolation part; 52. a second isolation part; 25. a side plate; 53. a third isolation section; 10. a mounting hole; 21. a contact plate; 11. a blocking surface; 12. a mounting surface; 13. a pin shaft mounting hole; 14. an insertion structure; 15. a groove structure; 81. a housing; 82. a wiring board; 83. arc extinguishing pieces; 84. an arc blocking piece; 16. a positioning groove; 41. a mounting section; 42. an insertion section; 43. a support section; 22. a clamping plate; 23. a spring plate; 24. a connecting shaft; 210. a first limiting hole; 220. a second limiting hole; 230. avoiding the hole.

Detailed Description

Specific embodiments of the switching unit of the present utility model are further described below with reference to the examples shown in the drawings. The switching unit of the present utility model is not limited to the description of the following embodiments.

As shown in fig. 2-6, the switch unit B of the present utility model includes a moving contact assembly and a fixed contact 3, the moving contact assembly includes a moving contact 2 and a contact support 1, the moving contact 2 is mounted on the contact support 1, and the contact support 1 is used for driving a contact plate 12 of the moving contact 2 to contact and separate from the fixed contact 3. The contact support 1 is provided with a mounting hole 10 for accommodating the moving contact 2, the moving contact 2 is inserted into the mounting hole 10, and the moving contact 2 is provided with a contact plate 21 extending to the outer side of the mounting hole 10; the mounting hole 10 comprises two blocking surfaces 11 oppositely arranged along a first direction and two mounting surfaces 12 oppositely arranged along a second direction, the moving contact 2 can be inserted between the two blocking surfaces 11 along a third direction, the first direction, the second direction and the third direction are in an orthogonal relationship, at least one mounting surface 12 is provided with a pin shaft mounting hole 13 matched with the pin shaft 4, the pin shaft 4 can pass through the pin shaft mounting hole 13 along the second direction and is inserted into the moving contact 2, the moving contact 2 is in rotary connection with the contact support 1 through the pin shaft 4, and the two blocking surfaces 11 are respectively used for blocking the moving contact 2 from rotating.

According to the moving contact assembly, the moving contact 2 is rotatably arranged on the contact support 1 through the pin shaft 4, the moving contact 2 can be limited to move in the third direction, and the two opposite blocking surfaces 11 of the mounting hole 10 block the moving contact 2 from rotating, so that the moving contact 2 is arranged on the contact support 1, and the moving contact assembly has the characteristics of simple structure, small number of parts and high mounting reliability, and can reduce the mounting difficulty, the moving contact 2 can be connected with a corresponding wiring board through soft connection first, then the moving contact 2 with the soft connection is inserted into the mounting hole 10, and the moving contact 2 and the soft connection cannot interfere with the blocking surfaces 11 and the pin shaft 4 in the orthogonal direction.

As shown in fig. 1-2, the present utility model further provides an isolating switch, where the isolating switch includes an operating unit a and a plurality of switch units B stacked together, an operating mechanism is disposed in the operating unit a, and is used to drive a contact support 1 in the switch unit B to rotate, a mounting hole 10 penetrating through the contact support 1 is disposed in a radial direction of the contact support 1, an axial direction of the contact support 1 is a second direction, a direction penetrating through the mounting hole 10 is a third direction, two mounting surfaces 12 of the mounting hole 10 are disposed opposite to each other along the second direction, two groups of identical surfaces 11 are disposed opposite to each other along the first direction, and in this embodiment, the first direction, the second direction and the third direction are perpendicular to each other, and obviously, the first direction and the second direction may not be perpendicular to each other to form a certain included angle.

The two axial ends of the contact support 1 are respectively provided with an inserting structure 14 shown in fig. 10 and a groove structure 15 shown in fig. 3, the inserting structure 14 on one contact support 1 of two adjacent switch units B is used for being inserted into the groove structure 15 of the other contact support 1, and the inserting structure 14 on the output shaft of the operating mechanism is inserted into the groove structure 15 of the contact support 1 of the switch unit B adjacent to the inserting structure 14; the positions of the insertion structure 14 and the groove structure 15 may also be interchanged, the insertion structure 14 of the contact support 1 being inserted into the groove structure 15 on the output shaft of the operating mechanism. The pin shaft mounting hole 13 is arranged at the bottom of the groove structure 15, one end of the pin shaft 4 is inserted through the pin shaft mounting hole 13, penetrates through the contact plate 21 of the movable contact 2, is limited with the inner side of the contact support 1 corresponding to the position of the insertion structure 14, one end of the pin shaft 4 away from the insertion structure 14 is located in the groove structure 15, the insertion structure 14 on one contact support 1 in two adjacent switch units B is used for being inserted into the groove structure 15 of the other contact support 1 to be connected, and can be used for blocking the pin shaft 4 to move at the same time. When only one contact support 1 is used or there is no adjacent insert structure 14, the insert structure 14 of identical shape can be machined separately for insertion into the recess structure 15.

According to the isolating switch, the insertion structures 14 and the groove structures 15 are respectively arranged at the two ends of the contact support 1, so that the linkage of two adjacent contact supports 1 can be realized, and the movement of the pin shaft 4 in one switch unit B can be limited through the insertion structure 14 of the other switch unit B.

Further, as shown in fig. 2, the switch unit B includes a housing 81 and two connection boards 82 respectively installed at two ends of the housing 81, the contact support 1 is rotatably installed in the housing 81, the moving contact 2 is installed on the contact support 1 and is connected with one of the connection boards 82 through the flexible connection 7, the fixed contact 3 is connected with the other connection board 82, an arc extinguishing piece 83 is provided on a side surface of the fixed contact 3, an arc blocking piece 84 is provided on the contact support 1, a through hole is provided on the arc blocking piece 84, and the contact board 21 on the moving contact 2 extends from the through hole to the outside of the installation hole 10, and the arc blocking piece 84 in this embodiment is installed on the contact support 1, or may be integrally formed with the contact support 1, which belongs to the protection scope of the present utility model.

As shown in fig. 4 to 5, of the two mounting surfaces 12 of the present embodiment, one mounting surface 12 of the two mounting surfaces 12 is provided with the pin shaft mounting hole 13, and the other mounting surface 12 is provided with the positioning groove 16, the pin shaft 4 includes a mounting section 41 and an insertion section 42, and a support section 43 provided between the mounting section 41 and the insertion section 42, the mounting section 41 and the insertion section 42 are respectively inserted into the pin shaft mounting hole 13 and the positioning groove 16 to be engaged, and the support section 43 is inserted into the movable contact 2 to be engaged. It can be understood that the inner side of the mounting hole 10 may be provided with a limiting pin 4 with a boss or other structure, and the pin 4 may be inserted into the pin mounting hole 13 and the positioning slot 16 on the mounting hole 10 to limit the position, which falls within the protection scope of the present utility model.

As shown in fig. 3, the switch unit B includes at least two groups of moving contacts 2, the mounting hole 10 of the contact support 1 is internally provided with the at least two groups of moving contacts 2, the at least two groups of moving contacts 2 are respectively connected with the wiring board 82 through the flexible connection 7, the pin shaft 4 respectively passes through the at least two groups of moving contacts 2, the at least two groups of moving contacts 2 are respectively rotatably connected with the contact support 1 through the pin shaft 4, the embodiment is provided with two groups of moving contacts 2, each group of moving contacts 2 respectively includes two contact plates 21 oppositely arranged, two clamping plates 22 arranged outside the two contact plates 21, an elastic sheet 23 is arranged outside at least one clamping plate 22, a contact space for inserting the fixed contact 3 is formed between the two contact plates 12, the fixed contact 3 can be inserted into the contact space between the two contact plates 21, and the elastic sheet 23 is used for driving the clamping plates 22 to push the contact plates 21, so that the contact plates 21 are pressed on the side surfaces of the fixed contact 3.

As shown in fig. 7-8, the contact plate 21, the clamping plate 22 and the elastic sheet 23 are respectively provided with a connecting hole for the connecting shaft 24 to pass through, two ends of the connecting shaft 24 are respectively provided with a limiting structure, and the limiting structures at two ends are used for limiting the contact plate 21, the clamping plate 22 and the elastic sheet 23 on the connecting shaft 24.

Further, a first limiting hole 210, a second limiting hole 220 and an avoidance hole 230 are respectively formed in the contact plate 21, the clamping plate 22 and the elastic sheet 23, the first limiting hole 210 and the second limiting hole 220 are respectively used for enabling the pin shaft 4 to pass through, the contact plate 21 and the clamping plate 22 are respectively connected with the contact support 1 in a rotating mode through the pin shaft 4, and the avoidance hole 230 is used for avoiding the pin shaft 4.

As shown in fig. 3, a partition plate 5 is disposed between the two contact plates 21, the partition plate 5 is provided with a fourth limiting hole 50, the fourth limiting hole 50 is used for the pin shaft 4 to pass through, and the partition plate 5 is in limiting fit with the contact plates 21 on two sides respectively. Of course, it is also possible to provide a sleeve not shown in the drawing, which is sleeved on the connecting shaft 24, between the two contact plates 21, and to limit both ends of the sleeve with the two contact plates 21, all falling within the scope of the utility model.

Further, the baffle 5 is provided with a limiting plate 6 extending to the outer sides of the two contact plates 21, the contact support 1 is provided with a limiting groove 60 for limiting the limiting plate 6, the limiting plate 6 not only can increase the area of the baffle 5 and improve the effect of the baffle 5, but also can limit 5 degrees of freedom of the moving contact 2 through two blocking surfaces 11 of the baffle 5 and the mounting hole 10 and two opposite groove walls in the limiting groove 60, and limit a sixth degree of freedom through the pin shaft 4, and the limiting plate 6 is in limiting fit with the limiting groove 60 on the contact support 1 and can also play a role in limiting the moving contact 2.

As shown in fig. 6-9, the two sides of the partition board 5 are respectively provided with a limiting plate 6, two opposite blocking surfaces 11 of the mounting hole 10 are respectively provided with a limiting groove 60, the limiting plates 6 on the two sides of the partition board 5 are respectively inserted into the limiting grooves 60 on the two blocking surfaces 11 for limiting fit, the limiting plates 6 comprise a first surface 61, a second surface 62 and a third surface 63 which are respectively connected between the first surface 61 and the partition board 5, the first surface 61 and the second surface 62 are vertically arranged, the third surface 63 is in a curved surface shape, and the third surface 63 in the curved surface shape enables the limiting plates 6 to be flush with the surface of the contact support 1, so that the limiting plates 6 are prevented from extending out of the contact support 1 to interfere with other parts. Of course, it is also possible to provide the limiting plate 6 on only one side of the partition plate 5, which falls within the scope of the present utility model.

Further, the partition board 5 includes a first isolation portion 51 and a second isolation portion 52, the first isolation portion 51 is disposed between the two contact plates 21, the second isolation portion 52 is disposed between the flexible connections 7 connected to the two contact plates 21, the second isolation portion 52 is disposed at one end of the first isolation portion 51 in a protruding manner, two side edges of the second isolation portion 52 extend respectively to form the limiting plate 6, and one end of the second isolation portion 52 far away from the first isolation portion 51 is provided with a third isolation portion 53 in a protruding manner.

Further, two side plates 25 are respectively arranged on each clamping plate 22, the two side plates 25 on each clamping plate 22 are oppositely arranged between the contact plate 21 and the blocking surfaces 11 on two sides, the blocking surfaces 11 on two sides block the rotation of the movable contact 2 through the side plates 25, a third isolation part 53 is arranged at one end, far away from the second isolation part 52, of the first isolation part 51, and the third isolation part 53 is used for being inserted between the two opposite clamping plates 22.

Preferably, one end of the moving contact 2 is matched with the fixed contact 3, the other end of the moving contact is connected with a wiring board 82 through a flexible connection 7, one end of the moving contact 2 matched with the fixed contact 3 is inserted from one end of the mounting hole 10 close to the limit groove 60, the other end of the mounting hole 10 provided with the arc blocking piece 84 extends out, the size of one end of the mounting hole 10 close to the limit groove 60 is larger than that of one end close to the arc blocking piece, one end of the contact board 21 close to the limit groove 60 is connected with the flexible connection 7, and one end of the contact board 21 connected with the flexible connection 7 is located in the mounting hole 10.

During assembly, the contact plates 21 and the wiring plates 82 of the movable contacts 2 are connected together through the flexible connection 7, then the movable contacts 2 are installed in the installation holes 10 of the contact support 1, then the partition plate 5 is installed between the two contact plates 21 of each movable contact 2, the fourth limit holes 50 on the partition plate 5, the first limit holes 210 and the second limit holes 220 on the contact plates 21 and the clamping plates 22 are aligned, the pin shaft 4 passes through the pin shaft installation holes 13, the first limit holes 210, the second limit holes 220 and the fourth limit holes 50, and finally the pin shaft 4 is inserted into the positioning grooves 16, so that the movable contacts 2 are installed on the contact support 1, then the insertion structures 14 of the adjacent contact supports 1 are inserted into the groove structures 15 of the other contact support 1, and finally the operation unit A is installed.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (10)

1. The utility model provides a moving contact subassembly, includes contact support (1) and moving contact (2), be equipped with in contact support (1) and be used for holding mounting hole (10) of moving contact (2), moving contact (2) cartridge in mounting hole (10), moving contact (2) are equipped with contact plate (21) that stretch to the mounting hole (10) outside, its characterized in that: the mounting hole (10) comprises two blocking surfaces (11) which are oppositely arranged along a first direction and two mounting surfaces (12) which are oppositely arranged along a second direction, the moving contact (2) can be inserted between the two blocking surfaces (11) along a third direction, the first direction, the second direction and the third direction are in an orthogonal relationship, at least one of the mounting surfaces (12) is provided with a pin shaft mounting hole (13) matched with the pin shaft (4), the pin shaft (4) can penetrate through the pin shaft mounting hole (13) along the second direction and is inserted into the moving contact (2), the moving contact (2) is rotationally connected with the contact support (1) through the pin shaft (4), and the two blocking surfaces (11) are respectively used for blocking the moving contact (2) to rotate.

2. The moving contact assembly of claim 1, wherein: one mounting surface (12) of the two mounting surfaces (12) is provided with the pin shaft mounting hole (13), the other mounting surface (12) is provided with the positioning groove (16), the pin shaft (4) comprises a mounting section (41) and an inserting section (42), and a supporting section (43) arranged between the mounting section (41) and the inserting section (42), the mounting section (41) and the inserting section (42) are respectively inserted into the pin shaft mounting hole (13) and the positioning groove (16) to be matched, and the supporting section (43) is inserted into the moving contact (2) to be matched.

3. The moving contact assembly of claim 1, wherein: the movable contact (2) comprises two contact plates (21) which are oppositely arranged, a partition plate (5) is arranged between the two contact plates (21), a fourth limiting hole (50) is formed in the partition plate (5), and the fourth limiting hole (50) is used for allowing a pin shaft (4) to pass through.

4. A moving contact assembly according to claim 3, wherein: limiting plates (6) are respectively arranged on two sides of the partition plate (5), limiting grooves (60) are respectively arranged on two opposite blocking surfaces (11) of the mounting hole (10), and the limiting plates (6) on two sides of the partition plate (5) are respectively inserted into the limiting grooves (60) on the two blocking surfaces (11) for limiting fit.

5. The movable contact assembly of claim 4, wherein: moving contact (2) one end and static contact (3) cooperation, the other end passes through flexible coupling (7) and wiring board (82), and moving contact (2) are inserted from mounting hole (10) one end that is close to spacing groove (60), stretch out from the mounting hole (10) other end, the size that mounting hole (10) is close to spacing groove (60) one end is greater than the size of the other end, the one end that contact plate (21) is close to spacing groove (60) is connected with flexible coupling (7), the one end that contact plate (21) is connected with flexible coupling (7) is located mounting hole (10).

6. A moving contact assembly according to claim 3, wherein: the two contact plates (21) are respectively connected with the soft connection (7), the partition board (5) comprises a first isolation part (51) and a second isolation part (52), the first isolation part (51) is arranged between the two contact plates (21), and the second isolation part (52) is arranged between the soft connection (7) connected with the two contact plates (21).

7. The movable contact assembly of claim 6, wherein: moving contact (2) are including two splint (22) of relative setting, two contact plates (21) set up between two splint (22), are equipped with two curb plates (25) on every splint (22) respectively, and two curb plates (25) on every splint (22) set up relatively between contact plate (21) and the blocking surface (11) of both sides, and both sides blocking surface (11) block moving contact (2) rotation through curb plate (25) respectively, first isolation part (51) are equipped with third isolation part (53) in the one side of keeping away from second isolation part (52), third isolation part (53) are used for inserting between two relative splint (22).

8. The movable contact assembly of claim 7, wherein: moving contact (2) one end and static contact (3) cooperation, the outside of at least one splint (22) is equipped with shell fragment (23), static contact (3) can insert between two contact plates (21), shell fragment (23) are used for driving splint (22) promotion contact plate (21) compress tightly static contact (3), be equipped with first spacing hole (210), second spacing hole (220) and dodge hole (230) on contact plate (21), splint (22) and shell fragment (23) respectively, first spacing hole (210) and second spacing hole (220) are used for round pin axle (4) to pass respectively.

9. The movable contact assembly of claim 8, wherein: the contact plate (21), the clamping plate (22) and the elastic sheet (23) are respectively provided with a connecting hole for the connecting shaft (24) to pass through, two ends of the connecting shaft (24) are respectively provided with a limiting structure, and the limiting structures at the two ends are used for limiting the contact plate (21), the clamping plate (22) and the elastic sheet (23) on the connecting shaft (24).

10. An isolating switch comprising an operating unit (a) and a plurality of switching units (B), characterized in that: each switch unit (B) is internally provided with the movable contact assembly as claimed in any one of claims 1-9, the operation unit (A) is used for driving the contact support (1) of the movable contact assembly in the switch unit (B) to rotate, two ends of the contact support (1) are respectively provided with an insertion structure (14) and a groove structure (15), the pin shaft mounting hole (13) is arranged at the bottom of the groove structure (15), one end of the pin shaft (4) away from the insertion structure (14) is positioned in the groove structure (15), and the insertion structure (14) on one contact support (1) in two adjacent switch units (B) is used for being inserted into the groove structure (15) of the other contact support (1) to block the pin shaft (4) from moving.