CN211628902U - Contact switch of switch machine and switch machine - Google Patents

Abstract

A contact switch for a switch machine comprises a main body (10), a drive member (20) and an electrical connection assembly (30). The drive member is movable relative to the body. The power connection assembly comprises a flexible connection assembly (40) and a contact set. The elastic connecting component is connected with the driving component. The contact group comprises two first moving contacts (51), two second moving contacts (52), two first fixed contacts (53) and two second fixed contacts (54). The first moving contact and the second moving contact are connected with the elastic connecting component. The first static contact and the second static contact are arranged on the main body and are respectively opposite to the first moving contact and the second moving contact. When the driving piece is at the first contact position, the elastic connecting assembly applies elastic force abutting against the first fixed contact to the first moving contact, and when the driving piece is at the second contact position, the elastic connecting assembly applies elastic force abutting against the second fixed contact to the second moving contact. The contact switch is beneficial to prolonging the service life of the contact. A switch machine including the contact switch is also provided.

Description

Contact switch of switch machine and switch machine

Technical Field

The utility model relates to a contact switch, especially a switch's contact switch reaches goat including it.

Background

The point switch is important signal basic equipment, and plays very important role in guaranteeing driving safety, improving transportation efficiency and improving labor intensity of driving personnel. The existing switch machine mostly adopts a contact type contact switch, and the contact between the contacts is hard contact, so that the contacts are easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a switch of goat, it does benefit to the life who improves the contact.

Another object of the present invention is to provide a switch machine which facilitates the improvement of the service life of the contacts.

The utility model provides a contact switch of goat, it includes a main part, a driving piece and connects the electric subassembly. The driving member is movably connected to the main body in a first direction and a reverse direction thereof, and is capable of moving from a first contact position to a second contact position in the first direction. The power connection assembly comprises an elastic connection assembly and a contact group. The elastic connecting component is connected with the driving component. The contact group comprises two first moving contacts, two second moving contacts, two first fixed contacts and two second fixed contacts. The two first moving contacts are connected with the elastic connecting component and are positioned on one side of the elastic connecting component in the first direction. The two second moving contacts are connected with the elastic connecting component and are positioned on the other side of the elastic connecting component in the first direction. The two first fixed contacts are arranged on the main body and are respectively opposite to the two first moving contacts in the first direction. The two second fixed contacts are arranged on the main body and are respectively opposite to the two second moving contacts in the first direction. When the driving piece is located at the first contact position, the elastic connecting assembly applies elastic force to the two first moving contacts to enable the two first moving contacts to abut against the two first fixed contacts respectively. When the driving piece is located at the second contact position, the elastic connecting assembly applies elastic force to the two second moving contacts to enable the two second moving contacts to abut against the two second fixed contacts respectively.

The contact of the contact switch of the point switch is soft contact realized through elastic force, so that the damage caused by hard contact of the contact is avoided, and the service life of the contact is prolonged.

In another exemplary embodiment of a contact switch of a switch machine, the elastic connection assembly comprises a connection block, a first spring plate and a second spring plate. The connecting block is connected with the driving piece. The first elastic sheet is connected with the connecting block and is perpendicular to the first direction. The two first moving contacts are connected with the first elastic sheet. When the driving piece is located at the first contact position, the first elastic piece bends and deforms towards the first direction. The second elastic sheet is connected with the connecting block and arranged in parallel to the first elastic sheet. The two second moving contacts are connected with the second elastic sheet. When the driving piece is located at the second contact position, the second elastic piece bends and deforms towards the opposite direction of the first direction. Therefore, the contact can play a self-cleaning role, pollutants and oxide films on the contact can be removed, the contact resistance of the contact is reduced, and the sweep stroke function is realized.

In a further exemplary embodiment of the contact switch of the switch machine, the connecting block comprises two connecting portions and one fixing portion. The two connecting portions are respectively located at two ends of the connecting block in the first direction. The first elastic sheet and the second elastic sheet are respectively sleeved on the two connecting parts. The fixing portion is located between the two connecting portions in the first direction. The elastic connecting assembly further comprises two clamping springs. The two clamp springs are respectively sleeved on the two connecting parts so as to respectively clamp the first elastic sheet and the second elastic sheet with the fixing part along a first direction and an opposite direction. The structure is convenient to assemble and good in stability.

In a further exemplary embodiment of the contact switch of the switch machine, the drive element is arranged through the two connecting portions and the fixed portion of the connecting block in the first direction. The elastic connecting assembly further comprises a fixing pin and a limiting plate. The fixing pin is arranged through the fixing part and the driving part along the direction vertical to the first direction so as to fix the relative positions of the connecting block and the driving part. The limiting plate is worn to locate by the fixed pin to be fixed in the connecting block with the limiting plate. The limiting plate can lean on first shell fragment and second shell fragment to the rotation of first shell fragment and second shell fragment for the connecting block of restriction. The structure is convenient to assemble and good in stability.

In a further exemplary embodiment of the contact switch of the switch machine, two first moving contacts are arranged on both sides of the connecting block in a second direction. The second direction is perpendicular to the first direction. The two second moving contacts are arranged on two sides of the connecting block along the second direction. Thereby improving stability.

In a further exemplary embodiment of the contact switch of the switch machine, the power connection assembly is provided with two contact sets. The two contact sets are arranged in a third direction. The third direction is perpendicular to the first direction and the second direction. Thereby increasing switching redundancy.

In a further exemplary embodiment of the contact switch of the switch machine, the power connection assembly further comprises four stationary contact fixtures and four wires. Each stationary contact fixing member includes a stationary contact post and a fixing bolt. Every two first fixed contacts arranged along the third direction are connected with one fixed contact column. And every two second fixed contacts arranged along the third direction are connected with one fixed contact column. One end of each of the four wires is inserted into the four static contact columns respectively. The fixed bolt is in threaded connection with the static contact column and can compress one end of the lead inserted into the static contact column. The structure is simple, and the stability is good.

In a further exemplary embodiment of the contact switch of the switch machine, the limit plate is able to limit the movement of the driving element between the first contact position and the second contact position by abutting against the stationary contact post. Thereby preventing unnecessary damage to the driver caused by travel beyond the first and second contact positions.

In a further exemplary embodiment of the contact switch of the switch machine, the first spring plate forms a first cut-out extending through in a direction parallel to the second direction between every two first movable contacts arranged in the third direction. The second elastic sheet is provided with a second gap which extends to the through direction along the direction parallel to the second direction between every two second moving contacts which are arranged along the third direction. Thereby increasing the redundancy of the switch.

In a further exemplary embodiment of the contact switch of the switch machine, every two first stationary contacts arranged along the third direction are offset in the first direction; every two second fixed contacts arranged along the third direction are offset in the first direction. Therefore, the arc point is fixed, the surface of the contact which is contacted with the rear part is ensured not to be subjected to arc sintering, and the stable and safe operation of the circuit is realized.

In a further exemplary embodiment of the contact switch of the switch machine, the face of the first stationary contact for contacting the first movable contact is a plane perpendicular to the first direction. The surface of the second fixed contact, which is used for contacting the second movable contact, is a plane vertical to the first direction. The surface of the first moving contact, which is used for contacting the first fixed contact, is a convex surface. The surface of the second moving contact, which is used for contacting the second fixed contact, is a convex surface. Thereby making the sliding between the moving contact and the stationary contact more stable.

In yet another exemplary embodiment of a contact switch of a switch machine, the body includes a first housing and a second housing. The second housing is detachably connected to the first housing. The first shell and the second shell enclose a cavity for accommodating the power connection assembly. The structure of this main part is convenient for assemble and does benefit to the protection and connects the electric subassembly.

In a further exemplary embodiment of the contact switch of the switch machine, the contact switch is provided with several power connection assemblies. The plurality of power connection assemblies are arranged along a first direction. The driving piece is in a long rod shape, and the length direction of the driving piece is parallel to the first direction.

The utility model also provides a goat, it includes an foretell contact switch. In the switch machine, the contact of the contact switch is soft contact realized through elastic force, so that the damage caused by hard contact of the contact is avoided, and the service life of the contact is prolonged.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Fig. 1 is a schematic diagram of an exemplary embodiment of a contact switch of a switch machine.

Fig. 2 is a schematic diagram of the internal structure of the contact switch shown in fig. 1.

Fig. 3 is a perspective view for explaining the elastic connection assembly shown in fig. 2.

Fig. 4 is an exploded view for explaining the elastic connection assembly shown in fig. 2.

Fig. 5 and 6 are views for explaining the change state of the contact switch shown in fig. 2.

Fig. 7 is an exploded view of another exemplary embodiment of a contact switch for a switch machine.

Fig. 8 is a schematic structural diagram illustrating the second elastic piece of the contact switch shown in fig. 7.

Fig. 9 is an exploded view of the electrical connection assembly of the contact switch shown in fig. 7.

Description of the reference symbols

10 main body

11 first casing

12 second casing

13 chamber

20 driving member

30 connect electric subassembly

40 resilient connecting assembly

41 first spring plate

411 first notch

42 second elastic sheet

421 second notch

43 connecting block

431 connecting part

432 fixing part

44 circlip

45 fixed pin

46 shim

47 limiting plate

51 first moving contact

52 second moving contact

53 first static contact

54 second fixed contact

60 stationary contact fixing piece

61 static contact point column

611 socket

63 fixing bolt

70 conducting wire

D1 first direction

D2 second direction

Third direction D3

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals in the drawings denote the same or similar components.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

In this document, "first", "second", etc. do not mean their importance or order, etc., but merely mean that they are distinguished from each other so as to facilitate the description of the document.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product.

Fig. 1 is a schematic diagram of an exemplary embodiment of a contact switch of a switch machine. Fig. 2 is a schematic diagram of the internal structure of the contact switch shown in fig. 1. As shown in fig. 1 and 2, the contact switch of the switch machine comprises a main body 10, a drive member 20 and three electricity connection assemblies 30.

As shown in fig. 1, in the present exemplary embodiment, the main body 10 includes a first housing 11 and a second housing 12. The second housing 12 is detachably connected to the first housing 11. The first housing 11 and the second housing 12 enclose a cavity 13 for accommodating the electrical connection assembly 30. The structure of the main body 10 is convenient for assembly and facilitates protection of the power receiving assembly 30. But is not limited thereto, and the body 10 may be provided in other structures in other exemplary embodiments.

The driving member 20 is movably coupled to the main body 10 in a first direction D1 and a reverse direction. In the present exemplary embodiment, the driving member 20 is in the form of a long rod, the length direction of which is parallel to the first direction D1. The three power modules 30 are arranged along the first direction D1. Each electrical connection assembly 30 includes a resilient connection assembly 40, a contact set, four stationary contact mounts 60 and four wires 70.

The resilient connecting assembly 40 connects the driver 20. The stationary contact fixture 60 is coupled to the second housing 12 of the main body 10. Each contact set comprises two first moving contacts 51, two second moving contacts 52, two first stationary contacts 53 and two second stationary contacts 54. The two first movable contacts 51 are connected to the elastic connection assembly 40 and located on one side of the elastic connection assembly 40 in the first direction D1. The two second movable contacts 52 are connected to the elastic connection assembly 40 and located on the other side of the elastic connection assembly 40 in the first direction D1. The two first stationary contacts 53 and the two second stationary contacts 54 are disposed on the four stationary contact fixing members 60 in a one-to-one correspondence. The two first stationary contacts 53 are respectively disposed opposite to the two first movable contacts 51 in the first direction D1. The two second stationary contacts 54 are respectively opposite to the two second movable contacts 52 in the first direction D1. The four wires 70 are respectively connected to the four stationary contact fixtures 60 and extend out of the first housing 11 for connection to external electrical equipment.

Fig. 3 is a perspective view for explaining the elastic connecting member 40 shown in fig. 2. Fig. 4 is an exploded view for explaining the elastic connecting member 40 shown in fig. 2. As shown in fig. 3 and 4, in the exemplary embodiment, the elastic connection assembly 40 includes a connection block 43, a first elastic piece 41, a second elastic piece 42, two clamp springs 44, a fixing pin 45, a spacer 46, and a limit plate 47.

The connection block 43 includes two connection portions 431 and one fixing portion 432. The two connection portions 431 are located at both ends of the connection block 43 in the first direction D1, respectively. The fixing portion 432 is located between the two connection portions 431 in the first direction D1. The first elastic sheet 41 and the second elastic sheet 42 are respectively sleeved on the two connecting portions 431. The first elastic sheet 41 and the second elastic sheet 42 are both perpendicular to the first direction D1 and are arranged along the first direction D1. The two springs 44 are respectively sleeved on the two connecting portions 431 to respectively clamp the first elastic sheet 41 and the second elastic sheet 42 with the fixing portion 432 along the first direction D1 and the opposite direction.

The driving member 20 is inserted through the two connecting portions 431 and the fixing portion 432 of the connecting block 43 in the first direction D1. The fixing pin 45 is inserted through the pad 46, the fixing portion 432 and the driving member 20 in a direction perpendicular to the first direction D1 to fix the relative positions of the connecting block 43 and the driving member 20. Wherein the spacer 46 serves for fastening.

Since the surface of the connecting portion 431 connecting the first elastic piece 41 and the second elastic piece 42 is a cylindrical surface in the exemplary embodiment, the first elastic piece 41 and the second elastic piece 42 can rotate relative to the connecting block 43, and thus the limiting plate 47 is provided. The fixing pin 45 penetrates through the limiting plate 47 to fix the limiting plate 47 to the connecting block 43. The limit plate 47 can abut against the first elastic sheet 41 and the second elastic sheet 42 to limit the rotation of the first elastic sheet 41 and the second elastic sheet 42 relative to the connecting block 43. Thereby making the structure more stable. Specifically, in the present exemplary embodiment, the limit plate 47 abuts against the first resilient piece 41 and the second resilient piece 42 through both ends thereof in one second direction D2, and the second direction D2 is perpendicular to the first direction D1, but is not limited thereto.

The two first movable contacts 51 are connected to the first elastic sheet 41 and located on one side of the first elastic sheet 41 away from the second elastic sheet 42, and the two first movable contacts 51 are arranged on two sides of the connecting block 43 along the second direction D2. The two second movable contacts 52 are connected to the second elastic sheet 42 and located on one side of the second elastic sheet 42 away from the first elastic sheet 41, and the two second movable contacts 52 are arranged on two sides of the connecting block 43 along the second direction D2.

The driver 20 is movable in a first direction D1 from a first contact position (shown in fig. 5) to a second contact position (shown in fig. 6). As shown in fig. 5, when the driving element 20 is located at the first contact position, the two first movable contacts 51 respectively abut against the two first fixed contacts 53, and the first elastic sheet 41 is bent and deformed toward the first direction D1, and the first elastic sheet 41 applies an elastic force to the two first movable contacts 51 to make the two first movable contacts respectively abut against the two first fixed contacts 53. As shown in fig. 6, when the driving element 20 is located at the second contact position, the two second movable contacts 52 respectively abut against the two second stationary contacts 54, and the second elastic sheet 42 is bent and deformed in a direction opposite to the first direction D1, and the second elastic sheet 42 applies an elastic force to the two second movable contacts 52 to make them respectively abut against the two second stationary contacts 54.

In the present exemplary embodiment, the stopper plate 47 is also capable of restricting the driver 20 from moving between the first contact position and the second contact position by abutting against the stationary-point fixing member 60. Thereby preventing unnecessary damage to the driver 20 as it travels beyond the first and second contact positions.

In the contact switch of the point switch of the exemplary embodiment, the contact of the contact is soft contact realized by elastic force, so that the damage caused by hard contact of the contact is avoided, and the service life of the contact is prolonged.

In the contact switch of the point switch according to the exemplary embodiment, in the process that the driving element 20 moves to the first contact position and the second contact position, along with the deformation of the first elastic sheet 41 and the second elastic sheet 42, the first movable contact 51 and the second movable contact 52 respectively slide on the first fixed contact 53 and the second fixed contact 54 in a friction manner, so that a self-cleaning effect is achieved, pollutants and an oxide film on the contacts can be removed, the contact resistance of the contacts is reduced, and a sweep function is realized.

In the present exemplary embodiment, the contact switch is provided with three power connection assemblies 30. Without limitation, in other exemplary embodiments, the number of powered components 30 may be adjusted as desired.

In the exemplary embodiment, the surface of the first fixed contact 53 for contacting the first movable contact 51 is a plane perpendicular to the first direction D1. The surface of the second fixed contact 54 for contacting the second movable contact 52 is a plane perpendicular to the first direction D1. The surface of the first movable contact 51 contacting the first fixed contact 53 is convex. The surface of the second movable contact 52 contacting the second fixed contact 54 is convex. Thereby making the sliding between the moving contact and the stationary contact more stable.

Fig. 7 is a schematic illustration of another embodiment of a contact switch of a switch machine. The same or similar points of the contact switch of the exemplary embodiment as those of the contact switch shown in fig. 2 will not be described herein again, and the differences therebetween are as follows.

Fig. 7 shows an exploded view of the electrical connection assembly 30 of the contact switch of the exemplary embodiment, in which two contact sets are provided for each electrical connection assembly 30, as shown in fig. 7. The two contact sets are arranged along a third direction D3. The third direction D3 is perpendicular to the first direction D1 and the second direction D2.

The contact switch of the present exemplary embodiment increases the switching redundancy by providing two contact sets per power connection assembly 30. For example, in every two first movable contacts 51 arranged along the third direction D3, as long as one first movable contact 51 can be contacted with the corresponding first fixed contact 53 for conducting electricity, the operation requirement can be satisfied.

The first elastic sheet 41 forms a first notch 411 extending through in a direction parallel to the second direction D2 between every two first movable contacts 51 arranged in the third direction D3. The first elastic sheet 41 has two first notches 411. The second elastic sheet 42 forms a second notch 421 extending to penetrate along a direction parallel to the second direction D2 between every two second movable contacts 52 arranged along the third direction D3. The second resilient tab 42 has two second notches 421. Fig. 8 is a schematic structural diagram illustrating the second elastic piece of the contact switch shown in fig. 7. The first elastic sheet 41 and the second elastic sheet 42 have the same structure. Therefore, the part of the first elastic sheet 41 connected with each first movable contact 51 can be independently deformed, and the part of the second elastic sheet 42 connected with each second movable contact 52 can be independently deformed, so that the switching redundancy is further improved.

Fig. 9 is an exploded view of the electrical connection assembly of the contact switch shown in fig. 7, with one of the fixing members 60 cut away. As shown in fig. 7 and 9, each stationary contact fixing member 60 includes a stationary contact post 61 and a fixing bolt 63. Every two first stationary contacts 53 arranged along the third direction D3 are connected to one stationary contact post 61. Every two second stationary contacts 54 arranged along the third direction D3 are connected to one stationary contact post 61. One ends of the four wires 70 are respectively inserted into the insertion holes 611 of the four stationary contact posts 61. The fixing bolt 63 is screwed to the stationary contact post 61 and can press one end of the wire 70 inserted into the stationary contact post 61. The stationary contact fixing member 60 has a simple structure and good stability.

As shown in fig. 9, in the exemplary embodiment, every two first fixed contacts 53 arranged along the third direction D3 are offset in the first direction D1. Therefore, when the driving element 20 moves, a time difference exists between the time when every two first fixed contacts 53 arranged along the third direction D3 contact or separate from the first movable contact 51, that is, one of the first contacts separates later, so that the arc-pulling point is fixed, the surface of the contact in later contact is ensured not to be subjected to arc-pulling sintering, and the stable and safe operation of the circuit is realized. Every two second stationary contacts 54 arranged along the third direction D3 are offset in the first direction D1. The effects are the same as above, and are not described herein again.

The present invention also provides a switch machine, which in one exemplary embodiment comprises any of the above-described contact switches. In the switch machine, the contact of the contact switch is soft contact realized through elastic force, so that the damage caused by hard contact of the contact is avoided, and the service life of the contact is prolonged.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above list of details is only for the practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of the features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims (14)

1. A contact switch for a switch machine, comprising:

a body (10);

a drive member (20) movably connected to said body (10) in a first direction (D1) and in a reverse direction and movable in said first direction (D1) from a first contact position to a second contact position; and

an electrical connection assembly (30) comprising:

a resilient connecting member (40) connecting said driving member (20), and

a contact set, comprising:

two first movable contacts (51) connected to said elastic connection assembly (40) and located on one side of said elastic connection assembly (40) in said first direction (D1),

two second movable contacts (52) connected to said elastic connection assembly (40) and located on the other side of said elastic connection assembly (40) in said first direction (D1),

two first stationary contacts (53) arranged on said body (10) and respectively opposite to said two first movable contacts (51) in said first direction (D1), and

two second fixed contacts (54) disposed on the main body (10) and respectively opposite to the two second movable contacts (52) in the first direction (D1);

when the driving piece (20) is located at the first contact position, the elastic connecting assembly (40) applies elastic force to the two first movable contacts (51) to enable the two first movable contacts to abut against the two first fixed contacts (53) respectively; when the driving piece (20) is located at the second contact position, the elastic connecting assembly (40) applies elastic force to the two second movable contacts (52) to enable the two second movable contacts to respectively abut against the two second fixed contacts (54).

2. The contact switch of claim 1, wherein said resilient connecting member (40) comprises:

a connecting block (43) connected to the driving member (20);

a first elastic sheet (41) connected to said connecting block (43) and arranged perpendicularly to said first direction (D1), said two first movable contacts (51) being connected to said first elastic sheet (41); when the driving piece (20) is located at the first contact position, the first elastic sheet (41) is bent and deformed towards the first direction (D1); and

a second elastic sheet (42) connected with the connecting block (43) and arranged in parallel with the first elastic sheet (41), wherein the two second movable contacts (52) are connected with the second elastic sheet (42); when the driving piece (20) is located at the second contact position, the second elastic sheet (42) is bent and deformed towards the direction opposite to the first direction (D1).

3. A contact switch according to claim 2, characterised in that said connection block (43) comprises:

two connection portions (431) respectively located at both ends of the connection block (43) in the first direction (D1); the first elastic sheet (41) and the second elastic sheet (42) are respectively sleeved on the two connecting parts (431); and

one fixing portion (432) located between the two connecting portions (431) in the first direction (D1);

the elastic connecting assembly (40) further comprises two clamp springs (44), the two clamp springs (44) are respectively sleeved on the two connecting portions (431) to respectively clamp the first elastic sheet (41) and the second elastic sheet (42) with the fixing portion (432) along the first direction (D1) and the opposite direction of the first direction.

4. A contact switch according to claim 3, characterised in that said actuating member (20) is inserted through said two connection portions (431) and said fixing portion (432) of said connecting block (43) in said first direction (D1); the resilient connection assembly (40) further comprises:

a fixing pin (45) penetrating the fixing portion (432) and the driving member (20) in a direction perpendicular to the first direction (D1) to fix the relative positions of the connecting block (43) and the driving member (20); and

a limiting plate (47), wherein the fixing pin (45) penetrates through the limiting plate (47) so as to fix the limiting plate (47) on the connecting block (43); the limiting plate (47) can abut against the first elastic sheet (41) and the second elastic sheet (42) to limit the rotation of the first elastic sheet (41) and the second elastic sheet (42) relative to the connecting block (43).

5. The contact switch according to claim 4, characterized in that said two first movable contacts (51) are arranged on either side of said connecting block (43) along a second direction (D2), said second direction (D2) being perpendicular to said first direction (D1); the two second movable contacts (52) are arranged on two sides of the connecting block (43) along the second direction (D2).

6. Contact switch according to claim 5, characterized in that said electrical contact assembly (30) is provided with two of said sets of contacts, both sets of contacts being arranged in a third direction (D3); the third direction (D3) is perpendicular to the first direction (D1) and the second direction (D2).

7. The contact switch of claim 6, wherein said electrical connection assembly (30) further comprises four stationary contact mounts (60) and four wires (70); each stationary contact fixing member (60) includes:

a stationary contact post (61), wherein every two first stationary contacts (53) arranged along the third direction (D3) are connected with one stationary contact post (61); every two second fixed contacts (54) arranged along the third direction (D3) are connected with one fixed contact column (61); one ends of the four wires (70) are respectively inserted into the four static contact columns (61); and

and a fixing bolt (63) which is connected with the static contact column (61) in a threaded manner and can press one end of the lead (70) inserted into the static contact column (61).

8. The contact switch of claim 7, wherein the limit plate (47) is capable of limiting the movement of the drive member (20) between the first contact position and the second contact position by abutting against the stationary contact post (61).

9. The contact switch according to claim 6, characterized in that said first elastic tab (41) defines, between every two first movable contacts (51) aligned along said third direction (D3), a first notch (411) extending through in a direction parallel to said second direction (D2); the second elastic sheet (42) is provided with a second notch (421) which extends to penetrate along the direction parallel to the second direction (D2) and is formed between every two second movable contacts (52) which are arranged along the third direction (D3).

10. The contact switch according to claim 6, characterized in that between each two of said first stationary contacts (53) arranged along said third direction (D3) there is an offset in said first direction (D1); every two second fixed contacts (54) arranged along the third direction (D3) are offset in the first direction (D1).

11. The contact switch according to claim 1, characterized in that the face of said stationary first contact (53) intended to contact said movable first contact (51) is a plane perpendicular to said first direction (D1); the surface of the second fixed contact (54) for contacting the second movable contact (52) is a plane perpendicular to the first direction (D1); the surface of the first moving contact (51) which is used for contacting the first fixed contact (53) is a convex surface; the surface of the second movable contact (52) used for contacting the second fixed contact (54) is a convex surface.

12. The contact switch of claim 1, characterized in that said body (10) comprises:

a first housing (11); and

a second housing (12) detachably connected to the first housing (11); the first shell (11) and the second shell (12) enclose a cavity (13) for accommodating the power connection assembly (30).

13. The contact switch according to claim 1, characterized in that said contact switch is provided with a plurality of said electrical contact elements (30), said plurality of electrical contact elements (30) being arranged along said first direction (D1); the driving member (20) has a long rod shape, and the length direction thereof is parallel to the first direction (D1).

14. Switch machine, characterized in that it comprises a contact switch according to any of claims 1 to 13.

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