CN220381979U - Three-station isolating switch main shaft with spherical electric contact - Google Patents
Three-station isolating switch main shaft with spherical electric contact Download PDFInfo
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- CN220381979U CN220381979U CN202321024033.0U CN202321024033U CN220381979U CN 220381979 U CN220381979 U CN 220381979U CN 202321024033 U CN202321024033 U CN 202321024033U CN 220381979 U CN220381979 U CN 220381979U
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- seat
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- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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Abstract
The utility model provides a three-station isolating switch main shaft with spherical electric contact, which comprises a shaft body support, wherein a moving contact assembly, a contact seat and a first mounting piece for connecting the moving contact assembly and the contact seat are arranged on the shaft body support; the movable contact assembly comprises two movable contact single elements which are oppositely arranged, and one end of each movable contact single element is provided with a spherical contact which is hemispherical and convex; the contact seat comprises a hemispherical concave spherical contact seat matched with the spherical contact, and a first through hole and a second through hole for a first mounting piece to pass through are respectively formed in the spherical contact and the concave spherical contact seat; the structural design enables the movable contact assembly and the contact seat to form spherical conductive contact, so that the electric contact is more reliable, and the contact area of the contact and the contact seat can be ensured during rotation.
Description
Technical Field
The utility model relates to the technical field of electric switches, in particular to a three-station isolating switch main shaft with spherical electric contact.
Background
The three-position switch (3PS,3 position switchgear) is provided with a closing position, a separating position and a grounding position, integrates the functions of the isolating switch and the grounding switch, and is completed by the moving contact to realize corresponding electric functions. The three-station isolating switch comprises a working position, an opening position and a grounding position, a linkage mechanism drives a moving contact to move between all positions to complete the actions of switching off, switching on and grounding, the existing three-station isolating switch often has the condition that the moving contact does not act in place, the switching-on position is deviated, the protection of a power supply system is not stable enough, accurate positioning is not performed well, a drift phenomenon is easy to occur in the repeated movement of the isolating moving contact, and serious equipment faults and safety accidents are very likely to occur once the drift phenomenon occurs.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings in the prior art and provide a three-station isolating switch main shaft with spherical electric contact, which adopts the following technical scheme:
the three-station isolating switch main shaft with the spherical electric contact comprises a shaft body support, wherein a moving contact assembly, a contact seat and a first mounting piece for connecting the moving contact assembly and the contact seat are arranged on the shaft body support; the movable contact assembly comprises two movable contact single elements which are oppositely arranged, and one end of each movable contact single element is provided with a spherical contact which is hemispherical and convex; the contact seat comprises a hemispherical concave spherical contact seat matched with the spherical contact, and a first through hole and a second through hole for a first mounting piece to pass through are respectively formed in the spherical contact and the concave spherical contact seat; the term "opposite arrangement" means that the spherical contacts of the two moving contact unit elements are arranged close to each other, so that the two moving contact unit elements are bilaterally symmetrical along the center line. The structural design enables the movable contact assembly and the contact seat to form conductive contact through the spherical surface, so that the electrical contact is more stable and reliable, and the contact area of the contact and the contact seat is ensured when the movable contact assembly rotates.
Preferably, the first mounting piece comprises a first connecting rod penetrating through the first through hole and the second through hole, and a first limiting part and a first equalizing ring which are positioned at two ends of the first connecting rod, and a first spring is sleeved between a limiting part and the moving contact assembly outside the first connecting rod Zhou Yudi.
Preferably, the shaft body support adopts split type design, connects through mortise and tenon joint structure: the shaft body support comprises end shafts positioned at two ends of the shaft body support and an insulating part arranged between the end shafts at two ends of the shaft body support; the insulation part comprises a connection part and a contact support for positioning the moving contact assembly.
Preferably, one end, far away from the spherical contact, of the movable contact unit element is provided with a movable contact, the movable contact is connected to a contact support through a second mounting piece, the second mounting piece comprises a second connecting rod penetrating through two movable contact unit elements which are oppositely arranged, and a second limiting part and a second equalizing ring which are positioned at two ends of the second connecting rod, and a second spring is sleeved between the second limiting part and the movable contact assembly, wherein the second limiting part is Zhou Yudi outside the second connecting rod.
Preferably, the contact support comprises a spacing part positioned between two moving contact single elements which are oppositely arranged, and the second connecting rod penetrates through the moving contact assembly and the spacing part to enable the moving contact assembly to be connected with the contact support.
Preferably, the engagement portion includes a first annular portion connected to one end or both ends of the contact support, and a first positioning hole is provided on the first annular portion; the end shaft is provided with a second annular part matched with the first annular part, the second annular part is provided with a second positioning hole, the first annular part is sleeved with the second annular part, and the end shaft is connected with the connecting part through taper pins penetrating through the first positioning hole and the second positioning hole; the first annular part and the second annular part are respectively provided with a first bulge and a second bulge which is sleeved and matched with the first bulge.
Preferably, the shaft body support is provided with at least two groups of insulating parts, the at least two groups of insulating parts are connected with each other through a connecting part, the connecting part comprises a first annular part and a third annular part which are respectively connected with two ends of the contact support, and the first annular part and the third annular part are respectively provided with a pin hole; the two adjacent insulating parts are connected with the third annular part through the first annular part in a sleeved mode, and the sleeved first annular part and the third annular part are positioned by taper pins penetrating through the pin holes; the first annular part and the third annular part are respectively provided with a first bulge and a third bulge which is sleeved and matched with the first bulge.
Further, the end shaft, the insulating part and the taper pin are formed by synthesizing glass fiber and nylon.
The beneficial effects of the utility model are as follows: the movable contact assembly is matched with the concave spherical contact seat through the spherical contact and is connected with the concave spherical contact seat through the first mounting piece, and the structural design enables the movable contact assembly and the contact seat to form spherical conductive contact, so that the electric contact is more stable and reliable, and the contact area of the contact and the contact seat can be ensured by self-adjustment during rotation.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a schematic overall structure of embodiment 1;
FIG. 2 is a schematic cross-sectional view of the structure of embodiment 1;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic view of a moving contact assembly and a contact base and a first mounting member;
FIG. 5 is an enlarged view at B in FIG. 2;
FIG. 6 is a schematic view of a portion of an exploded view of a shaft support of example 1;
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1-3, a three-station isolating switch main shaft with spherical electric contact comprises a shaft body support 1, wherein a moving contact assembly 2, a contact seat 3 and a first mounting piece for connecting the moving contact assembly 2 and the contact seat 3 are arranged on the shaft body support 1; the movable contact assembly 2 comprises two movable contact single elements which are oppositely arranged, and one end of each movable contact single element is provided with a spherical contact 21 which is hemispherical and convex; the contact seat 3 comprises a concave spherical contact seat 31 which is matched with the spherical contact 21 and is in a hemispherical concave shape, and a first through hole and a second through hole for a first mounting piece to pass through are respectively arranged on the spherical contact 21 and the concave spherical contact seat 31.
As shown in fig. 4, the first mounting member includes a first connecting rod 41 penetrating through the first through hole and the second through hole, and a first limiting portion 42 and a first equalizing ring 43 located at two ends of the first connecting rod 41, and a first spring 44 is sleeved between a limiting portion 42 of the outer Zhou Yudi of the first connecting rod 41 and the moving contact assembly 2.
As shown in fig. 2 and 6, the shaft body bracket 1 includes end shafts 11 positioned at both ends of the shaft body bracket 1, and an insulating portion 12 provided between the end shafts 11 at both ends of the shaft body bracket 1; the insulating portion 12 includes an engagement portion 122 and a contact holder 121 for positioning the movable contact assembly 2.
As shown in fig. 5, a moving contact 22 is disposed at one end of the moving contact unit element far away from the spherical contact 21, the moving contact 22 is connected to the contact support 121 through a second mounting piece, the second mounting piece includes a second connecting rod 221 penetrating through two moving contact unit elements disposed oppositely, and a second limiting portion 222 and a second equalizing ring 223 disposed at two ends of the second connecting rod 221, and a second spring 224 is sleeved between the second limiting portion 222 and the moving contact assembly 2 outside the second connecting rod 221.
The contact bracket 121 includes a spacing portion 1211 between two moving contact unit pieces disposed opposite to each other, and the second connecting rod 221 penetrates the moving contact assembly 2 and the spacing portion 1211 to connect the moving contact assembly 2 to the contact bracket 121.
The engagement portion 122 includes a first annular portion 1221 connected to one end or both ends of the contact support 121, and a first positioning hole is provided on the first annular portion 1221; the end shaft 11 is provided with a second annular part 111 matched with the first annular part 1221, the second annular part 111 is provided with a second positioning hole, the first annular part 1221 is sleeved with the second annular part 111, and the end shaft 11 is connected with the connecting part 122 through taper pins penetrating through the first positioning hole and the second positioning hole; the first annular portion 1221 and the second annular portion 111 are respectively provided with a first protrusion 1222 and a second protrusion 112 that is in socket fit with the first protrusion 1222.
As shown in fig. 6, the shaft body bracket 1 is provided with at least two groups of insulation parts 12, the at least two groups of insulation parts 12 are connected with each other through a connection part 122, the connection part 122 comprises a first annular part 1221 and a third annular part 1223 which are respectively connected with two ends of the contact bracket 121, and the first annular part 1221 and the third annular part 1223 are respectively provided with pin holes; adjacent two insulating parts 12 are connected by sleeving the first annular part 1221 and the third annular part 1223, and the sleeved first annular part 124 and the third annular part 123 are positioned by taper pins penetrating through pin holes; the first annular portion 1221 and the third annular portion 1223 are respectively provided with a first protrusion 1222 and a third protrusion 1225 that is in socket fit with the first protrusion 1222.
The end shaft, the insulating part and the taper pin are synthesized by glass fiber and nylon, and the taper pin is a conical pin and can be obtained through purchase.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (9)
1. Three station isolator main shaft with sphere electrical contact, including axis body support (1), its characterized in that: the shaft body support (1) is provided with a moving contact assembly (2), a contact seat (3) and a first mounting piece for connecting the moving contact assembly (2) and the contact seat (3);
the movable contact assembly (2) comprises two movable contact single elements which are oppositely arranged, and one end of each movable contact single element is provided with a spherical contact (21) which is hemispherical and convex;
the contact seat (3) comprises a concave spherical contact seat (31) which is matched with the spherical contact (21) and is hemispherical in depression, and a first through hole and a second through hole for a first mounting piece to pass through are respectively arranged on the spherical contact (21) and the concave spherical contact seat (31).
2. A three-position disconnector spindle with spherical electrical contact according to claim 1, characterized in that: the first mounting piece comprises a first connecting rod (41) penetrating through the first through hole and the second through hole, a first limiting part (42) and a first equalizing ring (43) which are arranged at two ends of the first connecting rod (41), and a first spring (44) is sleeved between the first limiting part (42) of the outer Zhou Yudi of the first connecting rod (41) and the moving contact assembly (2).
3. A three-position disconnector spindle with spherical electrical contact according to claim 1, characterized in that: the shaft body support (1) comprises end shafts (11) positioned at two ends of the shaft body support (1) and an insulating part (12) arranged between the end shafts (11) at two ends of the shaft body support (1); the insulation part (12) comprises an engagement part (122) and a contact support (121) for positioning the moving contact assembly (2).
4. A three-position disconnector spindle with spherical electrical contact according to claim 3, characterized in that: one end of the movable contact unit element, which is far away from the spherical contact (21), is provided with a movable contact (22), the movable contact (22) is connected to the contact support (121) through a second mounting piece, the second mounting piece comprises a second connecting rod (221) penetrating through two movable contact unit elements which are oppositely arranged, and a second limiting part (222) and a second equalizing ring (223) which are positioned at two ends of the second connecting rod (221), and a second spring (224) is sleeved between the second limiting part (222) of the outer Zhou Yudi of the second connecting rod (221) and the movable contact assembly (2).
5. A three-position disconnector spindle with spherical electrical contact according to claim 4, characterized in that: the contact support (121) comprises a spacing part (1211) positioned between two moving contact single elements which are oppositely arranged, and the second connecting rod (221) penetrates through the moving contact assembly (2) and the spacing part (1211) to enable the moving contact assembly (2) to be connected with the contact support (121).
6. A three-position disconnector spindle with spherical electrical contact according to claim 3, characterized in that: the connecting part (122) comprises a first annular part (1221) connected to one end or two ends of the contact support (121), and a first positioning hole is formed in the first annular part (1221);
the end shaft (11) is provided with a second annular part (111) matched with the first annular part (1221), the second annular part (111) is provided with a second positioning hole, the first annular part (1221) is sleeved with the second annular part (111), and the end shaft (11) is connected with the connecting part (122) through taper pins penetrating through the first positioning hole and the second positioning hole.
7. A three-position disconnector spindle with spherical electrical contact according to claim 6, characterized in that: the first annular part (1221) and the second annular part (111) are respectively provided with a first bulge (1222) and a second bulge (112) which is sleeved and matched with the first bulge (1222).
8. A three-position disconnector spindle with spherical electrical contact according to claim 3, characterized in that: at least two groups of insulating parts (12) are arranged on the shaft body support (1), the at least two groups of insulating parts (12) are connected with each other through a connecting part (122), the connecting part (122) comprises a first annular part (1221) and a third annular part (1223) which are respectively connected with two ends of the contact support (121), and pin holes are formed in the first annular part (1221) and the third annular part (1223);
two adjacent insulating parts (12) are connected with a third annular part (1223) through a first annular part (1221) in a sleeved mode, and the sleeved first annular part (1221) and the third annular part (1223) are positioned by taper pins penetrating through pin holes.
9. A three-position disconnector spindle with spherical electrical contact according to claim 8, characterized in that: the first annular part (1221) and the third annular part (1223) are respectively provided with a first bulge (1222) and a third bulge (1225) which is sleeved and matched with the first bulge (1222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024033.0U CN220381979U (en) | 2023-04-27 | 2023-04-27 | Three-station isolating switch main shaft with spherical electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024033.0U CN220381979U (en) | 2023-04-27 | 2023-04-27 | Three-station isolating switch main shaft with spherical electric contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220381979U true CN220381979U (en) | 2024-01-23 |
Family
ID=89566011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321024033.0U Active CN220381979U (en) | 2023-04-27 | 2023-04-27 | Three-station isolating switch main shaft with spherical electric contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220381979U (en) |
-
2023
- 2023-04-27 CN CN202321024033.0U patent/CN220381979U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 58 Jixian Road, Louqiao Industrial Park, Ouhai District, Wenzhou City, Zhejiang Province Patentee after: Xingji Electric Appliance Group Co.,Ltd. Country or region after: China Address before: 325005 No. 58, Jixian Road, Louqiao Industrial Park, Ouhai District, Wenzhou City, Zhejiang Province Patentee before: XINGJI ELECTRIC APPLIANCE Co.,Ltd. Country or region before: China |