CN114242506B - Quick grounding switch - Google Patents
Quick grounding switch Download PDFInfo
- Publication number
- CN114242506B CN114242506B CN202111307418.3A CN202111307418A CN114242506B CN 114242506 B CN114242506 B CN 114242506B CN 202111307418 A CN202111307418 A CN 202111307418A CN 114242506 B CN114242506 B CN 114242506B
- Authority
- CN
- China
- Prior art keywords
- shell
- connecting piece
- sleeve
- fixed
- sliding sleeve
- 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.)
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Links
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a quick grounding switch. The quick grounding switch comprises a shell, wherein a moving contact, a crank arm and a connecting piece are arranged in the shell, one end of the connecting piece, which is close to the moving contact, is hinged to the moving contact, the middle position of the connecting piece is hinged to the crank arm to drive the connecting piece to move, and then the moving contact is driven to reciprocate. Through sliding sleeve in fixed sleeve, realized the face-to-face contact, increased area of contact, reduced sliding sleeve and fixed sleeve's wearing and tearing have improved quick earthing switch's life, avoid the problem of transmission jamming simultaneously.
Description
Technical Field
The invention relates to a quick grounding switch, and belongs to the technical field of switching equipment.
Background
The fast grounding switch can realize fast grounding of a bus or a cable, has certain capacity of closing short-circuit current, and is an important module on GIS equipment. In order to achieve miniaturization design, the design concept of the existing quick grounding switch is that input torque is converted into linear motion of a moving contact through a straightening or guiding system, so that opening and closing operation of the quick grounding switch is achieved.
The application publication number CN110428995A discloses a quick grounding switch, include the system of straightening that comprises cross groove guide and gyration connecting piece, the one end of gyration connecting piece passes through the articulated shaft and connects in a inslot of cross groove guide, the gyration connecting piece can follow cross groove guide direction and remove, can rotate around the articulated shaft again, the other end of gyration connecting piece articulates with the tip of moving contact, the intermediate position of gyration connecting piece articulates there is the turning arm that can drive gyration connecting piece pivoted, drive gyration connecting piece motion through the turning arm, and then drive moving contact reciprocating motion.
Although the cross groove guide piece can realize the straightening movement of the quick grounding switch, the hinge shaft is in line-surface contact with the groove wall, so that the groove wall is seriously worn due to frequent movement, the matching precision with the hinge shaft cannot be met, and further, the transmission clamping stagnation and even the breakage of the cross groove guide piece are caused, so that the service life of the quick grounding switch is influenced.
Disclosure of Invention
The invention aims to provide a quick grounding switch, which solves the technical problem that in the prior art, the contact mode of a hinge shaft and a groove wall is line-surface contact, and the groove wall is seriously worn due to frequent movement.
In order to achieve the above purpose, the technical scheme of the quick grounding switch of the invention is as follows:
the utility model provides a quick earthing switch, includes the casing, is equipped with moving contact, turning arm and connecting piece in the casing, and the one end that the connecting piece is close to the moving contact articulates on the moving contact, and the turning arm articulates in the intermediate position of connecting piece in order to drive the connecting piece motion, and then drives moving contact reciprocating motion, the casing outside has set firmly the tube-shape fixed shell in the pull out mouth department of casing, and the one end that the fixed shell is close to the casing is the open end, and the one end that the casing was kept away from to the fixed shell is the blind end, is equipped with fixed sleeve in the fixed shell, and the direction slip is equipped with sliding sleeve in the fixed sleeve, and the one end that the connecting piece is close to sliding sleeve articulates at sliding sleeve's inner.
The beneficial effects are that: the sliding sleeve slides in the fixed sleeve, so that the surface-to-surface contact is realized, the contact area is increased, the abrasion between the sliding sleeve and the fixed sleeve is reduced, the service life of the quick grounding switch is prolonged, and the cost is reduced. In addition, the inner wall surface of the fixed sleeve has no fault structure, so that the problem of transmission clamping stagnation can be avoided.
As a further improvement, the fixing sleeve is positioned and assembled between the fixing shell and the pull-out opening of the shell.
The beneficial effects are that: the design is convenient for fixing the sleeve assembly.
As a further improvement, a first annular positioning step is arranged on the inner side of the closed end of the fixed shell, a second annular positioning step is arranged at the opening of the shell, and two ends of the fixed sleeve are respectively propped against the first annular positioning step and the second annular positioning step so as to be positioned and assembled between the fixed shell and the opening of the shell.
The beneficial effects are that: by means of the design, the assembly accuracy of the fixing sleeve can be guaranteed.
As a further improvement, a supporting protrusion for supporting on the outer circumferential surface of the fixing sleeve is provided on the inner wall of the fixing case.
The beneficial effects are that: the supporting bulge plays a role in supporting the fixed sleeve, so that the stability of the fixed sleeve is ensured; moreover, the annular gap is formed between the fixing sleeve and the fixing shell by the supporting bulge, so that the contact area of the fixing sleeve and the fixing shell is small, and the machining precision of the first annular positioning step and the supporting bulge is ensured, so that the machining is facilitated.
As a further improvement, the supporting projection is provided at the open end of the fixing case.
The beneficial effects are that: the design is beneficial to processing the supporting bulge.
As a further improvement, the inner end of the sliding sleeve is provided with a dodging structure for dodging the connecting piece.
The beneficial effects are that: interference with the sliding sleeve in the moving process of the connecting piece is avoided.
As a further improvement, the avoiding structure is a avoiding groove.
The beneficial effects are that: the avoidance groove is far away from the hinge position, so that the strength of the hinge position can be better ensured.
As a further improvement, a spigot positioning structure is arranged between the fixed shell and the spigot of the shell.
The beneficial effects are that: so as to ensure the matching precision between the fixed shell and the pulling mouth.
As a further improvement, the connecting piece is hinged at the inner end of the sliding sleeve through a hinge shaft, and the hinge shaft is assembled on the sliding sleeve in an interference mode.
The beneficial effects are that: the design prevents the hinge shaft from generating friction with the inner wall of the fixed sleeve due to the axial movement of the hinge shaft.
As a further improvement, a first annular positioning step is arranged on the inner side of the closed end of the fixing shell and comprises an axial positioning surface and a radial positioning surface, the radial limiting surface is connected with the side wall surface of the fixing shell through an arc surface, and the axial positioning surface is connected with the bottom wall surface of the fixing shell through a straight surface.
The beneficial effects are that: by the design, the thickness of the connecting part of the bottom wall and the side wall of the fixed shell is ensured under the condition that the whole thickness of the fixed shell is thinner.
Drawings
Fig. 1 is a schematic diagram of a structure of the fast grounding switch of the present invention when the fast grounding switch is closed;
FIG. 2 is a schematic diagram of the structure of the quick grounding switch of the present invention when the quick grounding switch is opened;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an exploded view of the sleeve guide of FIG. 3;
FIG. 5 is a schematic view of the structure of the stationary housing of FIG. 4;
FIG. 6 is a schematic view of the sliding sleeve of FIG. 4;
In the figure: 11. a sleeve guide structure; 12. a connecting piece; 13. a movable contact base; 14. a moving contact; 15. a guide sleeve; 16. a housing; 17. a crank arm; 18. a ground terminal; 19. pulling out the mouth; 20. a fixed case; 21. a fixed sleeve; 22. a sliding sleeve; 23. a first annular positioning step; 24. a second annular positioning step; 25. a supporting protrusion; 26. a spigot positioning structure; 27. a cambered surface; 28. straight surfaces; 29. avoiding the groove.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" or the like does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front," "rear," "upper," "lower," "left," and "right" are based on the orientation and positional relationship shown in the drawings, and are merely for convenience of description of the invention, and do not denote that the device or component in question must have a particular orientation, and thus should not be construed as limiting the invention.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
Embodiment 1 of the fast ground switch of the present invention:
As shown in fig. 1 and 2, the quick grounding switch comprises a housing 16, the upper, lower, left and right directions are defined in the illustrated direction, a movable contact seat 13 is assembled at an upper opening of the housing 16, a movable contact 14 which reciprocates in the upper and lower directions is assembled on the movable contact seat 13, guide sleeves 15 are arranged on the inner wall of the movable contact seat 13, two guide sleeves 15 are arranged at intervals in the upper and lower directions, and the guide sleeves 15 are used for guiding the movable contact 14 to reciprocate in the upper and lower directions. The movable contact base 13 is electrically connected with a grounding terminal 18 through a busbar.
In this embodiment, a crank arm 17 and a connecting piece 12 are further disposed in the housing 16, the left end of the crank arm 17 is hinged at the middle position of the connecting piece 12, and the right end of the crank arm 17 is in transmission connection with an output shaft of a driving device (not shown); the right end of the connecting piece 12 is hinged to the lower end of the movable contact 14, and the left end of the connecting piece 12 is connected to the sleeve guide structure 11. Wherein the connecting piece 12 is a three-hole connecting plate.
As shown in fig. 3, the sleeve guiding structure 11 comprises a fixed shell 20, a fixed sleeve 21 and a sliding sleeve 22, and the central lines of the fixed shell, the fixed sleeve 21 and the sliding sleeve 22 coincide; the fixing shell 20 is of a cylindrical structure, the right end of the fixing shell 20 is an open end, and the left end of the fixing shell 20 is a closed end; in this embodiment, the fixing case 20 is located outside the housing 16 and is fixed at the pull-out port 19 of the housing 16 by a bolt.
In this embodiment, a spigot positioning structure 26 is disposed between the fixing shell 20 and the pulling mouth 19 to ensure the precision of the fit between the fixing shell 20 and the pulling mouth 19, so that the center line of the fixing shell 20 coincides with the center line of the pulling mouth 19. In other embodiments, a male-female positioning structure may be provided between the stationary housing and the pulling port.
In this embodiment, the fixing sleeve 21 is positioned between the fixing housing 20 and the pulling port 19. Specifically, as shown in fig. 3 and 4, a first annular positioning step 23 is provided on the inner side of the closed end of the fixing shell 20, a second annular positioning step 24 is provided at the pulling-out port 19, and both ends of the fixing sleeve 21 are respectively pressed against the first annular positioning step 23 and the second annular positioning step 24 to be positioned and assembled between the fixing shell 20 and the pulling-out port 19.
In this embodiment, the inner wall of the fixing shell 20 is provided with a supporting protrusion 25 for supporting the outer peripheral surface of the fixing sleeve 21, so that an annular gap is formed between the fixing sleeve 21 and the fixing shell 20, and the design is such that the contact area between the fixing sleeve 21 and the fixing shell 20 is smaller, only the machining precision of the first annular positioning step 23 and the supporting protrusion 25 is ensured, and the machining is facilitated; and the supporting protrusions 25 play a supporting role on the fixing sleeve 21, so that stability of the fixing sleeve 21 is ensured.
In the present embodiment, the supporting protrusions 25 are provided at the open end of the fixing case 20 to facilitate the processing of the supporting protrusions 25.
As shown in fig. 4 and 5, the first annular positioning step 23 includes an axial positioning surface and a radial positioning surface, the radial limiting surface is connected with the side wall surface of the fixed shell 20 through an arc surface 27, and the axial positioning surface is connected with the bottom wall surface of the fixed shell 20 through a straight surface 28.
In this embodiment, the sliding sleeve 22 is guided and slidably fitted in the fixed sleeve 21, and the left end of the connecting member 12 is hinged to the right end of the sliding sleeve 22. The right end of the sliding sleeve 22 is the inner end of the sliding sleeve 22.
In this embodiment, a certain fit gap is formed between the sliding sleeve 22 and the fixed sleeve 21, and the sliding sleeve 22 and the fixed sleeve 21 are always in surface-to-surface contact.
In this embodiment, in order to avoid interference with the sliding sleeve 22 during movement of the connecting member 12, a avoiding structure is provided at the right end of the sliding sleeve 22 to avoid the connecting member 12. Preferably, as shown in fig. 4 and 6, the avoidance structure is an avoidance groove 29, and two avoidance grooves 29 are provided and are respectively arranged at the top and the bottom of the right end of the sliding sleeve 22, wherein the groove width of the avoidance groove 29 is larger than the thickness of the connecting piece 12. In other embodiments, no relief structure may be provided without interference.
In this embodiment, the connecting member 12 is hinged to the right end of the sliding sleeve 22 by a hinge shaft, the hinge shaft is assembled to the sliding sleeve 22 in an interference manner, and the connecting member 12 is rotatably assembled to the hinge shaft. Wherein both ends of the hinge shaft do not protrude from the outer circumferential surface of the sliding sleeve 22 to avoid friction with the inner wall surface of the fixed sleeve 21. To prevent the link 12 from moving in the axial direction of the hinge shaft, a retainer ring may be provided on the hinge shaft on both sides of the link.
In this embodiment, when the driving device drives the crank arm 17 to swing, the crank arm 17 drives the connecting piece 12 to move, the left end of the connecting piece 12 drives the sliding sleeve 22 to do linear reciprocating motion in the left-right direction in the fixed sleeve 21, and the right end of the connecting piece 12 drives the moving contact 14 to do linear reciprocating motion in the up-down direction, so as to realize the opening and closing operation of the quick grounding switch.
The sliding sleeve slides in the fixed sleeve, so that the surface-to-surface contact is realized, the contact area is increased, the abrasion between the sliding sleeve and the fixed sleeve is reduced, the service life of the quick grounding switch is prolonged, and the cost is reduced. In addition, the inner wall surface of the fixed sleeve has no fault structure, so that the problem of transmission clamping stagnation can be avoided.
Embodiment 2 of the fast ground switch of the present invention:
The present embodiment differs from embodiment 1 in that in embodiment 1, the fixing sleeve 21 is positioned and fitted between the fixing case 20 and the drawing port 19. In this embodiment, the fixing sleeve is interference-fitted in the fixing case.
Embodiment 3 of the fast ground switch of the present invention:
The difference between this embodiment and embodiment 1 is that in embodiment 1, the inner side of the closed end of the fixing shell 20 is provided with a first annular positioning step 23, the position of the pulling-out opening 19 is provided with a second annular positioning step 24, and two ends of the fixing sleeve 21 respectively press against the first annular positioning step 23 and the second annular positioning step 24 so as to be positioned and assembled between the fixing shell 20 and the pulling-out opening 19. In this embodiment, under the condition that the first annular positioning step is arranged on the inner side of the closed end of the fixing shell, the second annular positioning step is not arranged at the opening, and two ends of the fixing sleeve are respectively pressed against the outer side surfaces of the first annular positioning step and the opening so as to be positioned and assembled between the fixing shell and the opening.
Embodiment 4 of the fast ground switch of the present invention:
the present embodiment differs from embodiment 1 in that in embodiment 1, a supporting boss 25 is provided at the open end of the stationary case 20. In this embodiment, the supporting projection is provided at the middle position of the fixing case.
Embodiment 5 of the fast ground switch of the present invention:
The difference between this embodiment and embodiment 1 is that in embodiment 1, the avoidance structure is a avoidance groove, and two avoidance grooves 29 are provided, which are respectively provided at the top and bottom of the right end of the sliding sleeve 22. In this embodiment, the relief structure is a reaming structure.
Embodiment 6 of the fast ground switch of the present invention:
The difference between this embodiment and embodiment 1 is that in embodiment 1, the connecting member 12 is hinged to the right end of the sliding sleeve 22 by a hinge shaft, the hinge shaft is interference fitted on the sliding sleeve 22, and the connecting member 12 is rotatably fitted on the hinge shaft. In this embodiment, the hinge shaft is fixed on the connecting piece, the hinge shaft is rotatably assembled on the sliding sleeve, and a retainer ring for limiting the end of the hinge shaft is arranged in the hinge hole of the sliding sleeve, so as to prevent the end of the hinge shaft from protruding out of the outer peripheral surface of the sliding sleeve.
The above description is only a preferred embodiment of the present invention, and the patent protection scope of the present invention is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The quick grounding switch comprises a shell (16), wherein a moving contact (14), a crank arm (17) and a connecting piece (12) are arranged in the shell (16), one end of the connecting piece (12) close to the moving contact (14) is hinged to the moving contact (14), the crank arm (17) is hinged to the middle position of the connecting piece (12) to drive the connecting piece (12) to move so as to drive the moving contact (14) to reciprocate, the quick grounding switch is characterized in that a cylindrical fixed shell (20) is fixedly arranged outside the shell (16) at a pulling opening (19) of the shell (16), one end of the fixed shell (20) close to the shell (16) is an opening end, one end of the fixed shell (20) far away from the shell (16) is a closed end, a fixed sleeve (21) is arranged in the fixed shell (20), a sliding sleeve (22) is guided and assembled in the fixed sleeve (21), one end of the connecting piece (12) close to the sliding sleeve (22) is hinged to the inner end of the sliding sleeve (22), the fixed sleeve (21) is assembled between the fixed shell (20) and the pulling opening (19), a first annular step (19) is arranged at the inner side of the fixed shell (20), a second annular step (24) is arranged at the fixed shell (16), the two ends of the fixed sleeve (21) are respectively propped against the first annular positioning step (23) and the second annular positioning step (24) so as to be positioned and assembled between the fixed shell (20) and the pulling opening (19) of the shell (16), and the inner end of the sliding sleeve (22) is provided with a avoiding structure for avoiding the connecting piece (12).
2. The quick grounding switch according to claim 1, characterized in that the inner wall of the stationary housing (20) is provided with a supporting projection (25) for supporting on the outer circumferential surface of the stationary sleeve (21).
3. The quick grounding switch according to claim 2, characterized in that the supporting projection (25) is provided at the open end of the stationary housing (20).
4. The quick ground switch of claim 1, wherein the relief structure is a relief groove (29).
5. A quick-grounding switch according to any one of claims 1 to 3, characterized in that a spigot positioning structure (26) is provided between the stationary casing (20) and the spigot (19) of the housing (16).
6. A quick-action earthing switch according to any one of claims 1 to 3, characterised in that the connecting piece (12) is hinged to the inner end of the sliding sleeve (22) by means of a hinge shaft which is fitted with interference on the sliding sleeve (22).
7. The quick grounding switch according to claim 1, characterized in that a first annular positioning step (23) is arranged on the inner side of the closed end of the fixed shell (20), the first annular positioning step (23) comprises an axial positioning surface and a radial positioning surface, the radial limiting surface is connected with the side wall surface of the fixed shell (20) through an arc surface (27), and the axial positioning surface is connected with the bottom wall surface of the fixed shell (20) through a straight surface (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307418.3A CN114242506B (en) | 2021-11-05 | 2021-11-05 | Quick grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307418.3A CN114242506B (en) | 2021-11-05 | 2021-11-05 | Quick grounding switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242506A CN114242506A (en) | 2022-03-25 |
| CN114242506B true CN114242506B (en) | 2024-05-24 |
Family
ID=80748559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111307418.3A Active CN114242506B (en) | 2021-11-05 | 2021-11-05 | Quick grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114242506B (en) |
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| US4791250A (en) * | 1987-08-06 | 1988-12-13 | Square D Company | Trip-free, three-link switch assembly |
| JPH0565036U (en) * | 1992-02-05 | 1993-08-27 | 日新電機株式会社 | Operating device for switchgear |
| JPH05266765A (en) * | 1992-03-23 | 1993-10-15 | Mitsubishi Electric Corp | Switchgear |
| JP2002140963A (en) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | Switching device |
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| CN105895440A (en) * | 2016-05-26 | 2016-08-24 | 河南平高电气股份有限公司 | Transmission device and switch equipment employing same |
| CN208173490U (en) * | 2018-04-27 | 2018-11-30 | 山东泰开高压开关有限公司 | A kind of high voltage DC breaker arc-chutes holding meanss |
| CN109326479A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of earthing switch and its operating mechanism, drive mechanism |
| CN209169029U (en) * | 2019-01-25 | 2019-07-26 | 上海西门子高压开关有限公司 | Grunding switch gear device |
| CN110428996A (en) * | 2019-06-18 | 2019-11-08 | 河南平高电气股份有限公司 | High speed grounding switch and GIS device |
| CN111613473A (en) * | 2020-05-27 | 2020-09-01 | 南京海兴电网技术有限公司 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
| CN111755280A (en) * | 2020-06-02 | 2020-10-09 | 温州市鹿城区渊龙电器科技有限公司 | Double-column rotary isolating switch |
| CN211929372U (en) * | 2020-05-27 | 2020-11-13 | 南京海兴电网技术有限公司 | Isolation operation mechanism suitable for outdoor alternating-current high-voltage isolating switch |
| WO2020228340A1 (en) * | 2019-05-10 | 2020-11-19 | 平高集团有限公司 | Switching device |
| CN112002602A (en) * | 2020-06-18 | 2020-11-27 | 平高集团有限公司 | High-speed switch |
-
2021
- 2021-11-05 CN CN202111307418.3A patent/CN114242506B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791250A (en) * | 1987-08-06 | 1988-12-13 | Square D Company | Trip-free, three-link switch assembly |
| JPH0565036U (en) * | 1992-02-05 | 1993-08-27 | 日新電機株式会社 | Operating device for switchgear |
| JPH05266765A (en) * | 1992-03-23 | 1993-10-15 | Mitsubishi Electric Corp | Switchgear |
| JP2002140963A (en) * | 2000-10-31 | 2002-05-17 | Mitsubishi Electric Corp | Switching device |
| CN2775815Y (en) * | 2005-04-14 | 2006-04-26 | 北京思威驰电力技术有限公司 | Switch electric device driving device |
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| CN105895440A (en) * | 2016-05-26 | 2016-08-24 | 河南平高电气股份有限公司 | Transmission device and switch equipment employing same |
| CN109326479A (en) * | 2017-08-01 | 2019-02-12 | 平高集团有限公司 | A kind of earthing switch and its operating mechanism, drive mechanism |
| CN208173490U (en) * | 2018-04-27 | 2018-11-30 | 山东泰开高压开关有限公司 | A kind of high voltage DC breaker arc-chutes holding meanss |
| CN209169029U (en) * | 2019-01-25 | 2019-07-26 | 上海西门子高压开关有限公司 | Grunding switch gear device |
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| CN110428996A (en) * | 2019-06-18 | 2019-11-08 | 河南平高电气股份有限公司 | High speed grounding switch and GIS device |
| CN111613473A (en) * | 2020-05-27 | 2020-09-01 | 南京海兴电网技术有限公司 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
| CN211929372U (en) * | 2020-05-27 | 2020-11-13 | 南京海兴电网技术有限公司 | Isolation operation mechanism suitable for outdoor alternating-current high-voltage isolating switch |
| CN111755280A (en) * | 2020-06-02 | 2020-10-09 | 温州市鹿城区渊龙电器科技有限公司 | Double-column rotary isolating switch |
| CN112002602A (en) * | 2020-06-18 | 2020-11-27 | 平高集团有限公司 | High-speed switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114242506A (en) | 2022-03-25 |
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