CN210378870U - Pneumatic load switch - Google Patents
Pneumatic load switch Download PDFInfo
- Publication number
- CN210378870U CN210378870U CN201921885032.9U CN201921885032U CN210378870U CN 210378870 U CN210378870 U CN 210378870U CN 201921885032 U CN201921885032 U CN 201921885032U CN 210378870 U CN210378870 U CN 210378870U
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- China
- Prior art keywords
- insulating support
- contact
- lower contact
- joint
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005452 bending Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 241000722921 Tulipa gesneriana Species 0.000 description 4
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a pressure gas formula load switch, contact assembly under contact assembly, three groups are gone up to chassis, operating mechanism, three groups, lower contact assembly includes insulating pull rod, insulating support, goes up contact cover, contact tube, piston rod, piston, lower contact seat, plum blossom contact, insulating support on be provided with the joint chamber, the inner wall in joint chamber on be provided with a plurality of joint bosss, the upper end of insulating support correspond the draw-in groove that a plurality of joint boss departments are provided with the looks adaptation, insulating support on the draw-in groove pass joint boss and block in the joint intracavity, the contact tube pass insulating support, joint chamber, plum blossom contact in proper order and extend in last contact cover, insulating support's lower extreme connect on insulating support piece. The utility model has the advantages of simple structure, stable performance, reliability, convenient assembly and low cost.
Description
Technical Field
The utility model particularly relates to a pneumatics formula load switch.
Background
Currently, a pneumatic load switch is a switching device that can close, carry, and open/close current under normal conductive loop conditions or specified overload conditions, and can carry current for specified times under abnormal conductive loop conditions (e.g., short circuits). The load switch and the combined electrical apparatus are suitable for three-phase alternating current 10KV and 50HZ power systems, or are matched with complete sets of distribution equipment, ring network switch cabinets, combined substations and the like for use, are widely used for domain network construction and transformation projects, industrial and mining enterprises, high-rise buildings, public facilities and the like, can be used as a ring network power supply or terminal, and play roles in distribution, control and protection of electric energy. The existing pneumatic load switch is unreasonable in structural design and has the defects of complex structure, complex assembly, unreliable performance and high cost.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance are reliable, the assembly is convenient, with low costs pneumatics formula load switch
In order to achieve the above object, the present invention provides a pneumatic load switch, which comprises an underframe, an operating mechanism disposed on the underframe, three upper contact assemblies disposed on the underframe respectively, three lower contact assemblies disposed in linkage with the operating mechanism and matched with the upper contact assemblies, wherein the lower contact assemblies comprise an insulating pull rod in linkage fit with the operating mechanism, an insulating support disposed on the underframe, an insulating support disposed on the insulating support, an upper contact cover disposed on the insulating support, a conductive tube disposed in the insulating support and in linkage fit with the insulating pull rod, a piston rod disposed in the conductive tube, a piston disposed on the piston rod, a lower contact seat disposed at the upper end of the insulating support, and a tulip contact disposed on the lower contact seat, the insulating support is provided with a clamping cavity, the inner wall of the clamping cavity is provided with a plurality of clamping bosses, the upper end of insulating support correspond a joint boss department and be provided with the draw-in groove of looks adaptation, insulating support on the draw-in groove pass joint boss and block at the joint intracavity, the electric conduction pipe pass insulating support, joint chamber, plum blossom contact in proper order and extend in last contact cover, insulating support's lower extreme connect on insulating support piece.
The beneficial effect of above-mentioned structure is: this air-compression load switch's insulating support adopts joint cooperation mode assembly with insulating support, is favorable to improving the assembly efficiency of lower contact subassembly, and lower contact seat, plum blossom contact integration on insulating support, the modular assembly of this lower contact seat subassembly of being convenient for, it is more convenient to assemble, when the assembly, alternates the upper end of insulating support in the joint intracavity that insulating support was held, fixes insulating support's lower extreme on insulating support piece again, can accomplish the assembly of lower contact seat. Therefore, the pneumatic load switch has the advantages of simple structure, stable and reliable performance, convenience in assembly and low cost.
Particularly, the opening at the upper end of the insulating support is provided with a limiting groove, the lower contact seat is clamped in the limiting groove, the lower contact seat is provided with a bolt, and the bolt penetrates through the lower contact seat and is connected to the outer wall of the insulating support. The lower contact seat is clamped in the limiting groove of the insulating support, so that the lower contact seat and the insulating support are convenient to assemble, and the lower contact seat and the insulating support are more compactly connected.
Particularly, the lower contact seat on be provided with annular boss, be provided with the arc wall on the periphery wall of this annular boss, the contact piece of plum blossom contact on be provided with arc wall matched with arc portion of bending, the arc portion of bending block in the arc wall, and constitute the joint cooperation of plum blossom contact and lower contact seat. The lower contact seat is connected with the plum blossom contact in a clamping fit mode, so that the lower contact seat and the plum blossom contact can be assembled conveniently, and the contact reliability of the plum blossom contact and the lower contact seat can be improved.
Particularly, the cross-sectional shape of piston rod be "worker" font, the piston on be provided with the joint recess with piston rod matched with, the one end block of piston rod is in the joint recess, and constitutes the joint cooperation of piston rod and piston. The piston rod is connected with the piston in a clamping and matching mode, so that the piston rod and the piston can be conveniently assembled, and the assembling efficiency of the pneumatic load switch is improved.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is an assembly view of the insulating support and the lower contact block according to the embodiment of the present invention.
Fig. 4 is a perspective view of a piston according to an embodiment of the present invention.
Fig. 5 is a perspective view of the lower contact block according to the embodiment of the present invention.
Fig. 6 is a perspective view of the piston rod according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 6, an embodiment of the present invention is a pneumatic load switch, including a chassis 10, an operating mechanism 11 disposed on the chassis 10, three sets of upper contact assemblies 12 disposed on the chassis 11, three sets of lower contact assemblies 13 disposed in linkage with the operating mechanism 11 and cooperating with the upper contact assemblies 12, wherein the lower contact assemblies 20 include an insulating pull rod 21 cooperating with the operating mechanism 11, an insulating support 22 disposed on the chassis 10, an insulating support 23 disposed on the insulating support 22, an upper contact cover 24 disposed on the insulating support 23, a conductive tube 24 disposed in the insulating support 23 and cooperating with the insulating pull rod 21, a piston rod 25 disposed in the conductive tube 24, a piston 251 disposed on the piston rod 25, a lower contact base 26 disposed at an upper end of the insulating support 23, and a tulip contact 27 disposed on the lower contact base 26, insulating support 22 on be provided with joint chamber 221, the inner wall in joint chamber 221 on be provided with a plurality of joint bosss 222, the upper end of insulating support 23 correspond a joint boss 222 department and be provided with the draw-in groove 231 of looks adaptation, insulating support 23 on draw-in groove 231 pass joint boss 222 and block in joint chamber 221, conducting tube 24 pass insulating support 23, joint chamber 221, plum blossom contact 27 in proper order and extend in last contact cover 24, insulating support 23's lower extreme connect on insulating support 28. As shown in fig. 3, a limiting groove 232 is disposed on an opening at the upper end of the insulating support 23, the lower contact block 26 is engaged in the limiting groove 232, a bolt 29 is disposed on the lower contact block 26, and the bolt 29 penetrates through the lower contact block 29 and is connected to the outer wall of the insulating support 23. The lower contact seat is clamped in the limiting groove of the insulating support, so that the lower contact seat and the insulating support are convenient to assemble, and the lower contact seat and the insulating support are more compactly connected. As shown in fig. 5, the lower contact block 26 is provided with an annular boss 262, an arc-shaped groove 263 is provided on the outer peripheral wall of the annular boss 262, an arc-shaped bending portion 272 matched with the arc-shaped groove 263 is provided on the contact piece 271 of the tulip contact 27, and the arc-shaped bending portion 272 is clamped in the arc-shaped groove 263, and forms a clamping fit between the tulip contact 27 and the lower contact block 26. The lower contact seat is connected with the plum blossom contact in a clamping fit mode, so that the lower contact seat and the plum blossom contact can be assembled conveniently, and the contact reliability of the plum blossom contact and the lower contact seat can be improved.
As shown in fig. 3, 4 and 6, the cross-sectional shape of the piston rod 25 is "i" shaped, the piston 251 is provided with a clamping groove 252 matching with the piston rod 25, one end of the piston rod 25 is clamped in the clamping groove 252, and the piston rod 25 and the piston 251 are clamped and matched. The piston rod is connected with the piston in a clamping and matching mode, so that the piston rod and the piston can be conveniently assembled, and the assembling efficiency of the pneumatic load switch is improved.
This air-compression load switch's insulating support adopts joint cooperation mode assembly with insulating support, is favorable to improving the assembly efficiency of lower contact subassembly, and lower contact seat, plum blossom contact integration on insulating support, the modular assembly of this lower contact seat subassembly of being convenient for, it is more convenient to assemble, when the assembly, alternates the upper end of insulating support in the joint intracavity that insulating support was held, fixes insulating support's lower extreme on insulating support piece again, can accomplish the assembly of lower contact seat. Therefore, the pneumatic load switch has the advantages of simple structure, stable and reliable performance, convenience in assembly and low cost.
Claims (4)
1. The utility model provides a pressure gas formula load switch, includes chassis, the operating mechanism of setting on the chassis, three group set up respectively on the chassis last contact subassembly, three group and operating mechanism linkage setting and go up contact subassembly matched with lower contact subassembly, its characterized in that: the lower contact assembly comprises an insulating pull rod in linkage fit with an operating mechanism, an insulating support arranged on the chassis, an insulating support arranged on the insulating support, an upper contact cover arranged on the insulating support, a conductive tube arranged in the insulating support and in linkage fit with the insulating pull rod, a piston rod arranged in the conductive tube, a piston arranged on the piston rod, a lower contact seat arranged at the upper end of the insulating support, and a plum blossom contact arranged on the lower contact seat, wherein a clamping cavity is arranged on the insulating support, a plurality of clamping bosses are arranged on the inner wall of the clamping cavity, clamping grooves matched with the clamping bosses are arranged at the upper end of the insulating support corresponding to the clamping bosses, the clamping grooves on the insulating support penetrate through the clamping bosses and are clamped in the clamping cavity, the conductive tube penetrates through the insulating support, the clamping cavity and the plum blossom contact in sequence and extends into the upper contact cover, the lower end of the insulating support is connected to the insulating support.
2. The pneumatic load switch of claim 1, wherein: the upper end opening of the insulating support is provided with a limiting groove, the lower contact seat is clamped in the limiting groove, a bolt is arranged on the lower contact seat, and the bolt penetrates through the lower contact seat and is connected to the outer wall of the insulating support.
3. The pneumatic load switch according to claim 1 or 2, wherein: the lower contact seat on be provided with annular boss, be provided with the arc wall on the periphery wall of this annular boss, the contact piece of plum blossom contact on be provided with arc wall matched with arc portion of bending, the arc portion of bending block in the arc wall, and constitute the joint cooperation of plum blossom contact and lower contact seat.
4. The pneumatic load switch according to claim 1 or 2, wherein: the cross-sectional shape of piston rod be "worker" font, the piston on be provided with piston rod matched with joint recess, the one end block of piston rod is in the joint recess, and constitutes the joint cooperation of piston rod and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921885032.9U CN210378870U (en) | 2019-11-04 | 2019-11-04 | Pneumatic load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921885032.9U CN210378870U (en) | 2019-11-04 | 2019-11-04 | Pneumatic load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378870U true CN210378870U (en) | 2020-04-21 |
Family
ID=70257175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921885032.9U Expired - Fee Related CN210378870U (en) | 2019-11-04 | 2019-11-04 | Pneumatic load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289626A (en) * | 2020-09-25 | 2021-01-29 | 夏汝心 | Outdoor air-compression type load switch |
-
2019
- 2019-11-04 CN CN201921885032.9U patent/CN210378870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289626A (en) * | 2020-09-25 | 2021-01-29 | 夏汝心 | Outdoor air-compression type load switch |
| CN112289626B (en) * | 2020-09-25 | 2022-12-13 | 国网福建省电力有限公司漳州市长泰区供电公司 | Outdoor air compression type load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |