CN215418066U - Atmospheric air insulation switch - Google Patents
Atmospheric air insulation switch Download PDFInfo
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- CN215418066U CN215418066U CN202121460676.0U CN202121460676U CN215418066U CN 215418066 U CN215418066 U CN 215418066U CN 202121460676 U CN202121460676 U CN 202121460676U CN 215418066 U CN215418066 U CN 215418066U
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- main shaft
- pull rod
- insulation
- pin
- closing
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Abstract
The utility model relates to the technical field of electric switches, in particular to a normal-pressure air insulation switch, which comprises a base, wherein the top of the base is provided with a frame, a plurality of installation frameworks are arranged between the frame and the base at intervals, insulation pull rods are arranged on the installation frameworks, a main shaft is rotatably arranged on the frame, a plurality of driving parts are arranged outside the main shaft corresponding to the insulation pull rods, the driving parts are formed by fixedly connecting two parallel closing cams on the main shaft, movable grooves are formed in the closing cams, a pin shaft penetrates through the upper end of each insulation pull rod, two ends of each pin shaft are respectively inserted into the two movable grooves in a sliding manner, the main shaft rotates to drive the pin shaft in each closing cam to rotate around the main shaft so as to realize the lifting motion of the insulation pull rods, the problem that the current of the air switch is unstable due to the error rotation of the main shaft when the existing air insulation switch is used is solved, and the stability of the air switch in a connection state and a closing state is effectively improved, the safety performance of the switch is improved.
Description
Technical Field
The utility model relates to the technical field of electric switches, in particular to a normal-pressure air insulation switch.
Background
An air switch, also called an air circuit breaker, is a switch which can be automatically disconnected as long as the current in the circuit exceeds the rated current, and the air switch is a very important electric appliance in a low-voltage distribution network and an electric power dragging system and integrates control and various protection functions.
The air switch theory of operation does, utilize the motor that has the auto-lock to drive the main shaft rotating in order to drive insulating pull rod elevating movement and realize the current connection break-make, it deposits a bit and lies in, when the main shaft is rotatory to be driven insulating pull rod and is carried out opening and shutting of electric current, the locking structure who utilizes the driver locks the main shaft position, and then makes insulating pull rod keep current switch-on or off position, when its actual use, because of the circumstances such as motor auto-lock trouble easily, the condition that insulating pull rod mistake resets appears, thereby lead to air switch to open and shut the electric current unstable, there is the improvement.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is that the existing problem is solved, and the problem that the normal use of an air switch is influenced because the unstable opening and closing of current is easy to occur when the normal-pressure air insulated switch is used is provided.
In order to solve the prior art problems, the utility model discloses a normal-pressure air insulated switch, which comprises a base, wherein a frame is arranged at the top of the base, a plurality of installation frameworks are arranged between the frame and the base at intervals, an insulated pull rod is arranged on the installation frameworks, a main shaft is rotatably arranged on the frame, a plurality of driving parts are arranged outside the main shaft corresponding to the insulated pull rod, each driving part is formed by fixedly connecting two mutually parallel closing cams on the main shaft, a movable groove is formed on each closing cam, a pin shaft penetrates through the upper end of each insulated pull rod, two ends of each pin shaft are respectively inserted into the two movable grooves in a sliding manner, the main shaft rotates to drive the pin shaft in each closing cam to rotate around the main shaft so as to realize the lifting motion of the insulated pull rod, the air insulated switch further comprises a locking mechanism, when the main shaft rotates reversely to drive the insulated pull rod to be lifted to the horizontal position of the main shaft, the locking mechanism limits the insulation pull rod to descend, and when the main shaft rotates forwards, the locking mechanism relieves the displacement limitation on the insulation pull rod.
Preferably, the mounting framework comprises at least two mounting plates arranged in the vertical direction, the edges of the two mounting plates are connected through mounting columns, and the mounting columns are connected with the base.
Preferably, locking mechanical system includes the pinion rack, fixes the storage plate in frame one side and fixes the arc rack in the main shaft outside, the one end activity of pinion rack is inserted and is established the one end that keeps away from the frame at the storage plate, arc rack meshing pinion rack stretches out from the storage plate is inside when the main shaft reversal, when insulating pull rod goes up and down to with main shaft position level, the upper end of pinion rack offsets in order to restrict insulating pull rod and descends with the tip bottom of pin.
Preferably, the upper end of the insulating pull rod is provided with a mounting ring, a movable gap is formed between the two closing cams, the mounting ring is inserted into the movable gap, and the mounting ring is connected with the driving grooves of the two adjacent closing cams in a penetrating manner through a pin shaft.
Preferably, the driving groove is of a J-shaped structure, the closing cam is of a square structure, and arc-shaped chamfers are arranged on four corners of the closing cam.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the end part of the main shaft is connected with a driving motor to drive the main shaft to rotate, the main shaft drives the closing cams to rotate around the main shaft when rotating reversely, the pin shafts are connected between the driving grooves in the adjacent closing cams, and the pin shafts are connected with the insulating pull rod, so that the insulating pull rod can be synchronously driven to move up and down when the main shaft rotates reversely, and then the opening and closing of current are realized.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a test chart of an embodiment of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2 according to the present invention.
The labels in the figure are: 1. a base; 11. a frame; 2. an insulating pull rod; 21. a mounting ring; 3. a main shaft; 31. an arc-shaped rack; 32. a pin shaft; 4. a closing cam; 41. a drive slot; 5. a partition plate; 6. a toothed plate; 61. a storage plate; 7. isolating the rotating shaft; 8. static contact; 9. an isolation knife; 100. an insulator; 101. A ground contact; 201 mounting a plate; 202. and (6) mounting the column.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1-3, an atmospheric air insulated switch includes a base 1, a frame 11 is disposed on a top of the base 1, a plurality of mounting frames are disposed between the frame 11 and the base 1 at intervals, an insulating pull rod 2 is disposed on the mounting frames, a main shaft 3 is rotatably disposed on the frame 11, a plurality of driving parts are disposed outside the main shaft 3 corresponding to the insulating pull rod 2, the driving parts are formed by two closing cams 4 parallel to each other and fixedly connected to the main shaft 3, a movable groove is disposed on the closing cams 4, a pin shaft 32 penetrates through an upper end of the insulating pull rod 2, two ends of the pin shaft 32 are respectively slidably inserted into the two movable grooves, the main shaft 3 rotates to drive the pin shaft 32 in the closing cams 4 to rotate around the main shaft 3 to achieve a lifting motion of the insulating pull rod 2, the air insulated switch further includes a locking mechanism, when the main shaft 3 rotates to drive the insulating pull rod 2 to be lifted to a horizontal position with the main shaft 3, when the main shaft 3 rotates forward, the locking mechanism releases the displacement restriction on the insulating pull rod 2.
As shown in fig. 1, the mounting framework includes at least two mounting plates 201 arranged in a vertical direction, edges of the two mounting plates 201 are connected by mounting posts 202, and the mounting posts 202 are connected with the base 1.
As shown in fig. 1, a crank is disposed at the bottom of the mounting frame on the base 1, two ends of the crank are respectively hinged to the base 1 and the isolation knife 9 through the isolation rotating shaft 7, an insulator 100 and a grounding contact 101 are sequentially disposed at two sides of the bottom of the base 1, and a static contact 8 is disposed on a mounting plate 201 close to the crank.
In order to lock the position of the insulating pull rod 2 when the insulating pull rod 2 is lifted to the horizontal position with the main shaft 3, as shown in fig. 3, the locking mechanism comprises a toothed plate 6, a receiving plate 61 fixed on one side of the frame 11, and an arc-shaped rack 31 fixed on the outer side of the main shaft 3, one end of the toothed plate 6 is movably inserted into one end of the receiving plate 61 far away from the frame 11, the arc-shaped rack 31 engages with the toothed plate 6 to extend out from the receiving plate 61 when the main shaft 3 rotates reversely, when the insulating pull rod 2 is lifted to be horizontal to the position of the main shaft 3, the upper end of the toothed plate 6 is abutted against the bottom of the end part of the pin to limit the insulating pull rod 2 to descend, a blind hole is arranged in the containing plate 61, one end of the toothed plate 6 is movably arranged in the blind hole, when the main shaft 3 rotates to drive the arc-shaped rack 31 to be meshed with the end part of the toothed plate 6, the toothed plate 6 extends out of the blind hole, and then the pin shaft 32 is abutted against the two ends of the pin shaft 32, so that the pin shaft 32 is limited to descend to limit the position of the insulating pull rod 2.
As shown in fig. 3, the pinion rack 6 is after stretching out in the storage plate 61, be in the outside of two closing cams 4 and be located the both ends bottom of round pin axle 32, when main shaft 3 drives closing cam 4 rotatory like this, can not take place to contradict with the pinion rack 6 that stretches out in step, simultaneously when the above-mentioned highest position of round pin axle 32, the tip of pinion rack 6 extends to round pin axle 32 both ends bottom, and when main shaft 3 drives round pin axle 32 and descends, the arc rack 31 of main shaft 3 meshes pinion rack 6 again and contracts in the storage plate 61, and then make the conflict state cancellation of pinion rack 6 to the tip of round pin axle 32, round pin axle 32 can drive insulating pull rod 2 and reset the decline.
As shown in fig. 1, a mounting ring 21 is disposed at an upper end of an insulating pull rod 2, a movable gap is formed between two closing cams 4, the mounting ring 21 is inserted into the movable gap, the mounting ring 21 is connected with driving grooves 41 of two adjacent closing cams 4 through a pin shaft 32, the mounting ring 21 may have a sheet structure, and is conveniently inserted between the two closing cams 4, and then the driving grooves 41 of the closing cams 4 are connected with the mounting ring 21 through the pin shaft 32, so that the pin shaft 32 can rotate relative to the mounting ring 21 when moving through the driving grooves 41, and further the end of the insulating pull rod 2 is adjacent to the mounting ring 21, and when the closing cams 4 rotate around a main shaft 3, the rotating displacement can be converted into the vertical displacement of the insulating pull rod 2 through the driving grooves 41.
In order to avoid the pin shaft 32 from falling off from the driving groove 41 on the side surface of the closing cam 4, as shown in fig. 1, two ends of the pin are provided with limiting pins located on the outer sides of the two closing cams 4, and the length of the limiting pins is greater than that of the driving groove 41.
As shown in fig. 1, a partition plate 5 is disposed between two adjacent closing cams 4, and a through hole for accommodating the main shaft 3 is disposed inside the partition plate 5.
In order to facilitate the closing cam 4 to drive the pin to move when rotating around the main shaft 3, as shown in fig. 2, the driving groove 41 is of a J-shaped structure, so that the closing cam 4 is conveniently connected with the pin, the closing cam 4 is of a square structure, and four corners of the closing cam are provided with arc chamfers, so that the rotating area of the closing cam 4 is reduced, and the size of the frame 11 is reduced.
Specifically, when in use, a driving motor is connected to the end of the main shaft 3 to drive the main shaft 3 to rotate, referring to fig. 3, a indicates that the direction is a reverse direction, when the main shaft 3 reverses, the closing cams 4 are driven to rotate around the main shaft 3, and the pin shafts 32 are connected between the driving grooves 41 inside the adjacent closing cams 4, and the pin shafts 32 are connected with the insulating pull rod 2, so that when the main shaft 3 reverses, the pin shafts 32 connected with the closing cams 4 move to drive the insulating pull rod 2 to move up and down synchronously, so as to realize current connection, and when the main shaft 3 reverses to drive the insulating pull rod 2 to rise, the arc-shaped rack 31 outside the main shaft 3 can be meshed with the toothed plate 6 to extend out inside the accommodating plate 61 and further extend to the bottoms of the two ends of the pin shafts 32, thereby limiting the insulating pull rod 2 from resetting and descending, and further ensuring that the insulating pull rod 2 is disconnected due to incorrect rotation of the main shaft 3 due to faults such as motor self-locking, make air switch's output current more stable, avoid insulating pull rod 2 mistake to reset and the unstable problem of current output that appears, and when 3 corotation of main shaft, arc rack 31 meshing pinion rack 6 contracts in accomodating board 61, and then remove the restriction of pinion rack 6 to round pin axle 32 both ends, round pin axle 32 and insulating pull rod 2 that be can reset around 3 corotation of main shaft through closing cam 4, the normal of insulating pull rod 2 resets evening, simple to use, accomodating board 61 should set up the outside at closing cam 4, when pinion rack 6 in accomodating board 61 stretches out accomodating board 61, this 6 tip of pinion rack contacts with the 32 tip of round pin axle that risees to 3 horizontal planes of main shaft.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (6)
1. A normal-pressure air insulation switch comprises a base (1), wherein a frame (11) is arranged at the top of the base (1), a plurality of installation frameworks are arranged between the frame (11) and the base (1) at intervals, insulation pull rods (2) are arranged on the installation frameworks, a main shaft (3) is rotatably arranged on the frame (11), the normal-pressure air insulation switch is characterized in that a plurality of driving parts are arranged outside the main shaft (3) corresponding to the positions of the insulation pull rods (2), each driving part is formed by fixedly connecting two parallel closing cams (4) on the main shaft (3), a movable groove is formed in each closing cam (4), a pin shaft (32) penetrates through the upper end of each insulation pull rod (2), two ends of each pin shaft (32) are respectively inserted into the two movable grooves in a sliding mode, the main shaft (3) rotates to drive the pin shafts (32) in the closing cams (4) to rotate around the main shaft (3) so as to realize the lifting motion of the insulation pull rods (2), the air insulation switch further comprises a locking mechanism, when the main shaft (3) rotates reversely to drive the insulation pull rod (2) to rise to the horizontal position with the main shaft (3), the locking mechanism limits the insulation pull rod (2) to descend, and when the main shaft (3) rotates forwardly, the locking mechanism removes the displacement limitation on the insulation pull rod (2).
2. A normal pressure air insulated switch according to claim 1, characterized in that: the mounting framework comprises at least two mounting plates (201) arranged in the vertical direction, the edges of the two mounting plates (201) are connected through mounting columns (202), and the mounting columns (202) are connected with the base (1).
3. A normal pressure air insulated switch according to claim 1, characterized in that: locking mechanical system includes pinion rack (6), fixes accomodate board (61) in frame (11) one side and fixes arc rack (31) in main shaft (3) outside, the one end activity of pinion rack (6) is inserted and is established the one end of keeping away from frame (11) in accomodate board (61), arc rack (31) meshing pinion rack (6) are stretched out from accomodate board (61) are inside when main shaft (3) reverse, when insulating pull rod (2) rise to with main shaft (3) position level, the upper end of pinion rack (6) offsets in order to restrict insulating pull rod (2) and descend with the tip bottom of pin.
4. A normal pressure air insulated switch according to claim 3, characterized in that: the upper end of the insulating pull rod (2) is provided with a mounting ring (21), a movable gap is formed between the two closing cams (4), the mounting ring (21) is inserted into the movable gap, and the mounting ring (21) is in through connection with the driving grooves (41) of the two adjacent closing cams (4) through a pin shaft (32).
5. A normal pressure air insulated switch according to claim 4, characterized in that: and two ends of the pin are positioned at the outer sides of the two closing cams (4) and are provided with limiting contact pins, and the length of each limiting contact pin is greater than that of the corresponding driving groove (41).
6. A normal pressure air insulated switch according to claim 4, characterized in that: the driving groove (41) is of a J-shaped structure, the closing cam (4) is of a square structure, and arc chamfers are arranged on four corners of the closing cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460676.0U CN215418066U (en) | 2021-06-29 | 2021-06-29 | Atmospheric air insulation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121460676.0U CN215418066U (en) | 2021-06-29 | 2021-06-29 | Atmospheric air insulation switch |
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| Publication Number | Publication Date |
|---|---|
| CN215418066U true CN215418066U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121460676.0U Active CN215418066U (en) | 2021-06-29 | 2021-06-29 | Atmospheric air insulation switch |
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| CN (1) | CN215418066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115527740A (en) * | 2022-11-24 | 2022-12-27 | 杭州慧翔电液技术开发有限公司 | Self-circulation superconducting magnet and semiconductor single crystal furnace |
-
2021
- 2021-06-29 CN CN202121460676.0U patent/CN215418066U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115527740A (en) * | 2022-11-24 | 2022-12-27 | 杭州慧翔电液技术开发有限公司 | Self-circulation superconducting magnet and semiconductor single crystal furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A normal pressure air insulated switch Effective date of registration: 20220805 Granted publication date: 20220104 Pledgee: Industrial Bank Limited by Share Ltd. Xiamen branch Pledgor: XIAMEN GOOD EP ELECTRICAL CO.,LTD. Registration number: Y2022980012043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 2F, No. 8 (plant 3), Xiangming Road, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen, Fujian Patentee after: Xiamen Gudeyi Electric Co.,Ltd. Address before: 361000 2F, No. 8 (plant 3), Xiangming Road, Xiamen Torch High tech Zone (Xiang'an) Industrial Zone, Xiamen, Fujian Patentee before: XIAMEN GOOD EP ELECTRICAL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |