CN215342334U - Three-position switch operating mechanism for gas-filled cabinet and auxiliary contact system thereof - Google Patents
Three-position switch operating mechanism for gas-filled cabinet and auxiliary contact system thereof Download PDFInfo
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- CN215342334U CN215342334U CN202121456772.8U CN202121456772U CN215342334U CN 215342334 U CN215342334 U CN 215342334U CN 202121456772 U CN202121456772 U CN 202121456772U CN 215342334 U CN215342334 U CN 215342334U
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Abstract
The utility model relates to a three-position switch operating mechanism for an inflatable cabinet and an auxiliary contact system thereof. Aerify cabinet and use three station switch operating device's auxiliary contact system includes: a cam; the limit switch is provided with a trigger part; the trigger boss on the cam comprises a first trigger boss and a second trigger boss which are arranged at intervals, and the limit switch comprises a first grounding switch-on switch group, a second grounding switch-on switch group, a first isolation switch-on switch group and a second isolation switch-on switch group; the first trigger boss corresponds to the first grounding switch-on switch group and the first isolating switch-on switch group, and the second trigger boss corresponds to the second grounding switch-on switch group and the second isolating switch-on switch group, so that the first grounding switch-on switch group and the second grounding switch-on switch group have the same trigger state and the first isolating switch-on switch group and the second isolating switch-on switch group have the same trigger state when the cam rotates. The scheme can solve the problem that the number of the conventional auxiliary contacts is limited.
Description
Technical Field
The utility model relates to a three-position switch operating mechanism for an inflatable cabinet and an auxiliary contact system thereof.
Background
With the rapid development of urban scale and the requirement of power supply stability in China, ring network power supply is widely accepted by power supply systems. The inflatable ring main unit is also generally called as an inflatable main unit, and is an important electrical device in a ring network power supply system. With the development of new technology, the power distribution network is moving towards intellectualization, so that the power distribution network is required to have interactive, informationized and automated performances, signals of the gas-filled cabinet are required to be uploaded to all on-site monitoring terminal equipment, and the accuracy and timeliness of the signals influence the operation and the operation of the power grid. At present, electrical locking circuits such as circuit breakers, isolating switches, grounding switches and the like are clearly required to directly use auxiliary contacts in the operation of a power grid, and a re-acting relay is strictly forbidden, namely, a relay is used for expanding signals. Therefore, the number of signals provided by the auxiliary contact body of the three-position switch operating mechanism must meet the operation requirement.
The auxiliary contact system that traditional operating device was used commonly often adopts auxiliary switch, and auxiliary switch self can satisfy the auxiliary contact demand of a large amount, but to aerifing the cabinet, receives cabinet body space restriction, and auxiliary switch can't install, and what consequently auxiliary contact system adopted under the general condition is limit switch, sets up the cam on operating device's operating axis, by cam drive limit switch's contact action. When the three-station switch operating mechanism works, under the driving of the motor, the cam can rotate along with the operating shaft to push the trigger part on the limit switch at the set position, so that the normally closed point of the limit switch becomes the normally open point, and the normally open point becomes the normally closed point, thereby realizing the change of signals.
An auxiliary contact system of a conventional three-position switch operating mechanism for an inflatable cabinet is shown in fig. 5 and comprises a grounding switch-on switch 91, an isolating switch-off switch 92, an isolating switch-on switch 93 and a cam 94, wherein the grounding switch-on switch 91, the isolating switch-off switch 92 and the isolating switch-on switch 93 are mounted on a switch mounting plate 95 and are respectively stacked to form three limit switch groups, each switch is provided with a trigger part 97, and the trigger parts can be triggered under the driving of a trigger boss 96 on the cam 94 to meet the signal quantity requirement. However, if a greater number of signals are required, the number of stacked limit switches cannot be used to meet the requirements due to the size limitation of the gas-filled cabinet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-position switch operating mechanism for an inflatable cabinet and an auxiliary contact system thereof, which solve the problem that the number of the conventional auxiliary contacts is limited.
The utility model adopts the following technical scheme:
aerify cabinet and use three station switch operating device's auxiliary contact system includes:
a cam;
the limit switch is provided with a trigger part for triggering the trigger boss on the cam;
the trigger boss on the cam comprises a first trigger boss and a second trigger boss which are arranged at intervals, and the limit switch comprises a first grounding switch-on switch group, a second grounding switch-on switch group, a first isolation switch-on switch group and a second isolation switch-on switch group;
the first trigger boss corresponds to the first grounding switch-on switch group and the first isolating switch-on switch group, and the second trigger boss corresponds to the second grounding switch-on switch group and the second isolating switch-on switch group, so that the first grounding switch-on switch group and the second grounding switch-on switch group have the same trigger state and the first isolating switch-on switch group and the second isolating switch-on switch group have the same trigger state when the cam rotates.
Has the advantages that: by adopting the technical scheme, the cam is provided with the first triggering boss and the second triggering boss, the auxiliary contact system comprises the second grounding switch-on switch group and the second isolating switch-on switch group, the first triggering boss corresponds to the first grounding switch-on switch group and the first isolating switch-on switch group, the second triggering boss corresponds to the second grounding switch-on switch group and the second isolating switch-on switch group, the first grounding switch-on switch group and the second grounding switch-on switch group have the same triggering state when the cam rotates, and the first isolating switch-on switch group and the second isolating switch-on switch group have the same triggering state, so that the signal expansion of the isolating switch-on switch group and the isolating switch-on switch group is realized.
As a preferred technical scheme: the limit switch further comprises an isolation opening switch group, and the isolation opening switch group is arranged between the first grounding closing switch group and the first isolation closing switch group.
Has the advantages that: the isolation opening switch group is arranged to meet the detection requirement of the isolation opening signal.
As a preferred technical scheme: the arc length of the outer peripheral surface of the first trigger boss is larger than that of the outer peripheral surface of the second trigger boss, and the first trigger boss is used for avoiding the isolation brake-separating switch group when triggering the first grounding switch group and the first isolation switch-closing switch group.
Has the advantages that: by adopting the technical scheme, the distance between the second grounding switch-on switch group and the second isolating switch-on switch group can be set to be larger, so that the assembly, the overhaul and the wiring are convenient.
As a preferred technical scheme: the limit switch is installed on the switch mounting panel, the switch mounting panel includes first switch group installation region and second switch group installation region, and the cam is located between first switch group installation region and the second switch group installation region.
Has the advantages that: the area of the switch mounting plate is expanded by the first switch group mounting area and the second switch group mounting area, and the second grounding switch-on switch group and the second isolating switch-on switch group are convenient to mount.
As a preferred technical scheme: the limit switch is a magnetic blow switch.
The three-position switch operating mechanism for the inflatable cabinet adopts the following technical scheme:
aerify cabinet and use three station switch operating device, include:
the operating shaft is connected with the power device to drive the contact to perform three-station opening and closing actions;
the auxiliary contact system is used for outputting a three-station opening and closing action signal; the auxiliary contact system comprises:
the cam is used for being connected to an operating shaft of the three-position switch operating mechanism;
the limit switch is provided with a trigger part for triggering the trigger boss on the cam;
the trigger boss on the cam comprises a first trigger boss and a second trigger boss, and the limit switch comprises a first grounding switch-on switch group, a second grounding switch-on switch group, a first isolation switch-on switch group and a second isolation switch-on switch group;
has the advantages that: by adopting the technical scheme, the cam is provided with the first triggering boss and the second triggering boss, the auxiliary contact system comprises the second grounding switch-on switch group and the second isolating switch-on switch group, the first triggering boss corresponds to the first grounding switch-on switch group and the first isolating switch-on switch group, the second triggering boss corresponds to the second grounding switch-on switch group and the second isolating switch-on switch group, the first grounding switch-on switch group and the second grounding switch-on switch group have the same triggering state when the cam rotates, and the first isolating switch-on switch group and the second isolating switch-on switch group have the same triggering state, so that the signal expansion of the isolating switch-on switch group and the isolating switch-on switch group is realized.
As a preferred technical scheme: the limit switch further comprises an isolation opening switch group, and the isolation opening switch group is arranged between the first grounding closing switch group and the first isolation closing switch group.
Has the advantages that: the isolation opening switch group is arranged to meet the detection requirement of the isolation opening signal.
As a preferred technical scheme: the arc length of the outer peripheral surface of the first trigger boss is larger than that of the outer peripheral surface of the second trigger boss, and the first trigger boss is used for avoiding the isolation brake-separating switch group when triggering the first grounding switch group and the first isolation switch-closing switch group.
Has the advantages that: by adopting the technical scheme, the distance between the second grounding switch-on switch group and the second isolating switch-on switch group can be set to be larger, so that the assembly, the overhaul and the wiring are convenient.
As a preferred technical scheme: the limit switch is installed on the switch mounting panel, the switch mounting panel includes first switch group installation region and second switch group installation region, and the cam is located between first switch group installation region and the second switch group installation region.
Has the advantages that: the area of the switch mounting plate is expanded by the first switch group mounting area and the second switch group mounting area, and the second grounding switch-on switch group and the second isolating switch-on switch group are convenient to mount.
As a preferred technical scheme: the limit switch is a magnetic blow switch.
Drawings
FIG. 1 is a perspective view of the auxiliary contact system of the three-position switch operating mechanism of the present invention;
FIG. 2 is a front view of FIG. 1, with forward and reverse rotation limit switches omitted;
FIG. 3 is a block diagram of the cam of FIG. 1;
fig. 4 is a schematic diagram of the state of the cam when the auxiliary contact system of the three-position switch operating mechanism of fig. 2 is about to move to a grounding-closing state and about to move to an isolating-closing state, wherein a two-dot chain line indicates about to move to the isolating-closing state;
FIG. 5 is a schematic diagram of a prior art auxiliary contact system for a three position switch in which the trigger portion of the isolating switch is depressed and is in a triggered state;
the names of the components corresponding to the corresponding reference numerals in the drawings are: 11. a cam; 12. a first trigger boss; 13. a second trigger boss; 22. a first grounding switch-on switch group; 23. isolating the opening switch group; 24. a first isolation switch group; 25. a second grounding switch group; 26. a second isolation switch group; 27. a trigger section; 28. a positive and negative rotation limit switch; 31. a switch mounting plate; 32. a first switch group installation area; 33. a second switch group installation area; 41. an operating shaft; 91. a grounding switch-on switch; 92. isolating the opening switch; 93. an isolation switch-on switch; 94. cam, 95, switch mounting plate; 96. triggering the boss; 97. a trigger part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of 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 present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are 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. Also, the terms "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, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the auxiliary contact system of the three-position switch operating mechanism for the gas insulated switchgear of the present invention:
as shown in fig. 1 and 2, the auxiliary contact system of the three-position switch operating mechanism for the gas-filled cabinet comprises a cam 11, a switch mounting plate 31 and a limit switch. The cam 11 is connected to an operating shaft 41 of the three-position switch operating mechanism and swings in accordance with the forward and reverse rotation of the operating shaft 41. The limit switch is a magnetic blow switch, and is provided with a trigger part 27 for triggering a trigger boss on the cam 11 and outputting a three-position opening and closing action signal. The magnetic blow-out switch is a conventional limit switch, a permanent magnet is arranged on the magnetic blow-out switch, the extinguishing of electric arcs can be accelerated by utilizing a magnetic field, and the specific structure is not described in detail here. The three-position switch operating mechanism for the gas-filled cabinet is also provided with a forward and reverse rotation limit switch 28, and the forward and reverse rotation limit switch 28 is the prior art and will not be described in detail herein.
The limit switches for realizing switching-on and switching-off signal output are arranged in groups, are divided into five groups in total, are respectively a first grounding switching-on switch group 22, a first isolating switching-on switch group 24, an isolating switching-off switch group 23, a second grounding switching-on switch group 25 and a second isolating switching-on switch group 26, and each limit switch group comprises three limit switches horizontally stacked and arranged. The limit switches are mounted on a switch mounting plate 31, the switch mounting plate 31 includes a first switch group mounting area 32 and a second switch group mounting area 33, and the cam 11 is located between the first switch group mounting area 32 and the second switch group mounting area 33. As shown in fig. 5, in the auxiliary contact system before the improvement, the switch mounting plate is provided with only the first switch group mounting region and is not provided with the second switch group mounting region.
The arrangement positions of the first grounding closing switch group 22, the first isolating closing switch group 24 and the isolating opening switch group 23 are the same as the structure in the prior art. Different from the structure in the prior art, the limit switch is further provided with a second grounding switch-on switch group 25 and a second isolating switch-on switch group 26, and in addition, as shown in fig. 2 and 3, the cam 11 is provided with a second triggering boss 13 corresponding to the second grounding switch-on switch group 25 and the second isolating switch-on switch group 26, in addition to the first triggering boss 12 adapted to the first grounding switch-on switch group 22, the first isolating switch-on switch group 24 and the isolating switch-off switch group 23. The first trigger boss 12 corresponds to the first grounding and closing switch group 22 and the first isolating and closing switch group 24, and the second trigger boss 13 corresponds to the second grounding and closing switch group 25 and the second isolating and closing switch group 26, so that when the cam 11 rotates, the first grounding and closing switch group 22 and the second grounding and closing switch group 25 have the same trigger state, and the first isolating and closing switch group 24 and the second isolating and closing switch group 26 have the same trigger state. Therefore, the signal quantity of the isolation closing signal and the grounding closing signal can be doubled.
In this embodiment, the triggering portions 27 of the limit switch groups are located on the same circle, the outer peripheral surfaces of the first triggering boss 12 and the second triggering boss 13 of the cam 11 are also located on the same circle, and the circle corresponding to the triggering portion 27 of each limit switch group is the same circle as the circle corresponding to the outer peripheral surfaces of the first triggering boss 12 and the second triggering boss 13 of the cam 11.
As shown in fig. 2 and 4, the arc length of the outer peripheral surface of the first triggering protrusion 12 is greater than the arc length of the outer peripheral surface of the second triggering protrusion 13, so as to avoid the isolating switch-off switch group 23 when triggering the first grounding switch group 22 and the first isolating switch group 24.
When the three-position switch operating mechanism is used, as shown in fig. 4, the cam 11 is driven by the operating shaft 41 of the three-position switch operating mechanism to rotate clockwise according to the shown direction, the cam 11 shown by a solid line in fig. 4 is about to be in a grounding closing state, the first trigger boss 12 of the cam 11 is in contact with the trigger part 27 of the first grounding closing switch group 22, the cam 11 continues to rotate clockwise, and the trigger part 27 of the first grounding closing switch group 22 is pressed down to trigger the first grounding closing switch group 22; meanwhile, the second trigger boss 13 of the cam 11 contacts with the trigger part 27 of the second grounding closing switch group 25, and the cam 11 continues to rotate clockwise, so that the trigger part 27 of the second grounding closing switch group 25 is pressed down, and the second grounding closing switch group 25 and the first grounding closing switch group 22 are synchronously triggered. The cam 11 shown by the two-dot chain line in fig. 4 is to be in an isolation and closing state, the first triggering boss 12 of the cam 11 contacts with the triggering part 27 of the first isolation and closing switch group 24, the cam 11 continues to rotate counterclockwise, and the triggering part 27 of the first isolation and closing switch group 24 is pressed down to trigger the first isolation and closing switch group 24; meanwhile, the second trigger boss 13 of the cam 11 contacts with the trigger part 27 of the second isolation and closing switch group 26, the cam 11 continues to rotate counterclockwise, and the trigger part 27 of the second isolation and closing switch group 26 is pressed down, so that the second isolation and closing switch group 26 and the first isolation and closing switch group 24 are synchronously triggered.
Embodiment 2 of the auxiliary contact system of the three-position switch operating mechanism for the gas-filled cabinet of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the arc length of the outer peripheral surface of the first trigger boss 12 between the first grounding and closing switch group 22 and the first isolating and closing switch group 24 is greater than the arc length of the outer peripheral surface of the second trigger boss 13, but in this embodiment, the first grounding and closing switch group 22 and the first isolating and closing switch group 24, the second grounding and closing switch group 25 and the second isolating and closing switch group 26 in embodiment 1 are symmetrically arranged, the first trigger boss 12 and the second trigger boss 13 are also symmetrically arranged, and the arc length of the outer peripheral surface of the first trigger boss 12 is equal to the arc length of the outer peripheral surface of the second trigger boss 13.
Embodiment 3 of the auxiliary contact system of the three-position switch operating mechanism for the gas insulated switchgear of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, a first grounding switch group 22 and a first isolating switch group 24 are arranged adjacently, and in this embodiment, an isolating switch group 23 between the first grounding switch group 22 and the first isolating switch group 24 is a first isolating switch group, a second isolating switch group symmetrical to the first isolating switch group is arranged between the first grounding switch group 22 and the first isolating switch group 24, and a first triggering boss 12 and a second triggering boss 13 are also arranged symmetrically.
Embodiment 4 of the auxiliary contact system of the three-position switch operating mechanism for the gas insulated switchgear of the present invention:
the present embodiment is different from embodiment 1 in that embodiment 1 is a magnetic blow switch, and in this embodiment, the limit switch does not include a permanent magnet for forming magnetic blow.
Embodiment 5 of the auxiliary contact system of the three-position switch operating mechanism for the gas insulated switchgear of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the outer peripheral surfaces of the first triggering boss 12 and the second triggering boss 13 of the cam 11 are located on the same circle and are coaxial with the rotation center of the cam 11, while in this embodiment, the curvature radii of the first triggering boss 12 and the second triggering boss 13 of the cam 11 are different, and the arc length of the second triggering boss 13 is determined according to the positions of the first isolation closing switch group 24 and the second isolation closing switch group 26.
In the above embodiment, each limit switch group includes three limit switches, and in other embodiments, the number of limit switches in each limit switch group may also be adjusted when the installation space is satisfied.
The utility model discloses an embodiment of a three-position switch operating mechanism for an inflatable cabinet, which comprises the following components in parts by weight: the embodiment of the three-position switch operating mechanism for the gas-filled cabinet comprises an operating shaft 41, wherein the operating shaft 41 is used for being connected with a power device to drive a contact to perform three-position opening and closing actions; the auxiliary contact system, namely the auxiliary contact system described in any embodiment of the auxiliary contact system of the three-position switch operating mechanism for the gas-filled cabinet, is used for outputting a three-position opening and closing action signal, and is not specifically described here. The power device can be a motor or a manual operating handle.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. Aerify cabinet and use three station switch operating device's auxiliary contact system includes:
a cam (11);
the limit switch is provided with a trigger part (27) for triggering the trigger boss on the cam (11);
it is characterized in that the preparation method is characterized in that,
the trigger boss on the cam (11) comprises a first trigger boss (12) and a second trigger boss (13) which are arranged at intervals, the limit switch comprises a first grounding switch-on switch group (22) and a second grounding switch-on switch group (25), and further comprises a first isolating switch-on switch group (24) and a second isolating switch-on switch group (26);
the first trigger boss (12) corresponds to the first grounding switch-on switch group (22) and the first isolation switch-on switch group (24), and the second trigger boss (13) corresponds to the second grounding switch-on switch group (25) and the second isolation switch-on switch group (26), so that the first grounding switch-on switch group (22) and the second grounding switch-on switch group (25) have the same trigger state and the first isolation switch-on switch group (24) and the second isolation switch-on switch group (26) have the same trigger state when the cam (11) rotates.
2. The auxiliary contact system of claim 1, wherein the limit switch further comprises an isolation switch-off group (23), and the isolation switch-off group (23) is disposed between the first grounding switch-off group (22) and the first isolation switch-off group (24).
3. The auxiliary contact system according to claim 2, wherein the arc length of the outer peripheral surface of the first trigger boss (12) is greater than the arc length of the outer peripheral surface of the second trigger boss (13) for avoiding the disconnecting switch group (23) when triggering the first grounding switch group (22) and the first disconnecting switch group (24).
4. Auxiliary contact system according to claim 1 or 2 or 3, wherein the limit switches are mounted on a switch mounting plate (31), the switch mounting plate (31) comprising a first switch group mounting area (32) and a second switch group mounting area (33), the cam (11) being located between the first switch group mounting area (32) and the second switch group mounting area (33).
5. Auxiliary contact system according to claim 1, 2 or 3, wherein the limit switch is a magnetic blow switch.
6. Aerify cabinet and use three station switch operating device, include:
the operating shaft (41) is connected with the power device to drive the contact to perform three-station opening and closing actions;
the auxiliary contact system is used for outputting a three-station opening and closing action signal; the auxiliary contact system comprises:
a cam (11) connected to an operating shaft (41) of the three-position switch operating mechanism;
the limit switch is provided with a trigger part (27) for triggering the trigger boss on the cam (11);
it is characterized in that the preparation method is characterized in that,
the trigger boss on the cam (11) comprises a first trigger boss (12) and a second trigger boss (13), the limit switch comprises a first grounding switch-on switch group (22) and a second grounding switch-on switch group (25), and further comprises a first isolating switch-on switch group (24) and a second isolating switch-on switch group (26);
the first trigger boss (12) corresponds to the first grounding switch-on switch group (22) and the first isolation switch-on switch group (24), and the second trigger boss (13) corresponds to the second grounding switch-on switch group (25) and the second isolation switch-on switch group (26), so that the first grounding switch-on switch group (22) and the second grounding switch-on switch group (25) have the same trigger state and the first isolation switch-on switch group (24) and the second isolation switch-on switch group (26) have the same trigger state when the cam (11) rotates.
7. The three-position switch operating mechanism for the gas insulated switchgear according to claim 6, wherein the limit switch further comprises an isolation switch-off group (23), and the isolation switch-off group (23) is disposed between the first grounding switch-on group (22) and the first isolation switch-on group (24).
8. The three-position switch operating mechanism for the gas insulated switchgear according to claim 7, wherein the arc length of the outer peripheral surface of the first trigger protrusion (12) is larger than the arc length of the outer peripheral surface of the second trigger protrusion (13) for avoiding the disconnecting switch group (23) when triggering the first grounding switch group (22) and the first disconnecting switch group (24).
9. A three-position switch operating mechanism for an inflatable cabinet according to claim 6, 7 or 8, wherein the limit switches are mounted on a switch mounting plate (31), the switch mounting plate (31) comprising a first switch group mounting region (32) and a second switch group mounting region (33), the cam (11) being located between the first switch group mounting region (32) and the second switch group mounting region (33).
10. A three-position switch operating mechanism for an inflatable cabinet as claimed in claim 6, 7 or 8, wherein the limit switch is a magnetic blow switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121456772.8U CN215342334U (en) | 2021-06-29 | 2021-06-29 | Three-position switch operating mechanism for gas-filled cabinet and auxiliary contact system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121456772.8U CN215342334U (en) | 2021-06-29 | 2021-06-29 | Three-position switch operating mechanism for gas-filled cabinet and auxiliary contact system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215342334U true CN215342334U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121456772.8U Active CN215342334U (en) | 2021-06-29 | 2021-06-29 | Three-position switch operating mechanism for gas-filled cabinet and auxiliary contact system thereof |
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| Country | Link |
|---|---|
| CN (1) | CN215342334U (en) |
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2021
- 2021-06-29 CN CN202121456772.8U patent/CN215342334U/en active Active
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