CN114242485B - High-safety interlocking mechanism for ring main unit - Google Patents
High-safety interlocking mechanism for ring main unit Download PDFInfo
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- CN114242485B CN114242485B CN202111554096.2A CN202111554096A CN114242485B CN 114242485 B CN114242485 B CN 114242485B CN 202111554096 A CN202111554096 A CN 202111554096A CN 114242485 B CN114242485 B CN 114242485B
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- cover plate
- locating
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- positioning
- limiting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000306 component Substances 0.000 description 10
- 244000309464 bull Species 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to an interlocking mechanism with high safety for a ring main unit, which comprises a box body, a cover plate and a connecting mechanism, wherein the connecting mechanism comprises a connecting component and a positioning component, the interlocking mechanism with high safety for the ring main unit is used for positioning the middle part of the cover plate and the box body through the connecting component, meanwhile, through the restoring force of a first spring, a limiting plate is always abutted against a circular ring, the positioning effect is improved, the cover plate is enabled to be abutted against the box body better, the two ends of the cover plate are positioned with the box body through the positioning component, the cover plate is connected with the box body in the azimuth, the connecting effect is improved, the cover plate is better connected with the box body through the connecting component through the positioning pin, the positioning pin is limited through an electromagnet, the cover plate can be opened only when the power is cut off, people are reminded, and the protection of people is realized.
Description
Technical Field
The invention particularly relates to an interlocking mechanism with high safety for a ring main unit.
Background
The ring main unit is a group of electric equipment with power transmission and distribution equipment arranged in a metal or nonmetal insulating cabinet body or made into an assembled spacing ring main unit, the core components of the ring main unit are a load switch and a fuse, the load switch is used for controlling a high-voltage loop, the fuse is responsible for protecting the high-voltage loop, and the ring main unit is widely applied to distribution stations and box-type substations of load centers such as urban residential communities, high-rise buildings, factory enterprises and the like.
Because the inside of looped netowrk cabinet is provided with high-voltage apparatus, so open the action that the looped netowrk cabinet is very dangerous under the condition of circular telegram, and current looped netowrk cabinet circuit total gate and latching mechanism are two independent mechanisms, under the condition that the circuit total gate was opened, open latching mechanism and not have any suggestion, lead to the staff to easily neglect whether the circuit is circular telegram to easily lead to the emergence of accident.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to overcome the defects of the prior art, the interlocking mechanism with high safety for the ring main unit is provided.
The technical scheme adopted for solving the technical problems is as follows: the interlocking mechanism comprises a box body, a cover plate and a connecting mechanism, wherein the box body is vertically arranged, an opening is formed in one end of the box body, the cover plate is arranged at the opening, one end of the cover plate is hinged with one side of the opening of the box body, and the other end of the cover plate is connected with the other side of the opening of the box body through the connecting mechanism;
the connecting mechanism comprises a connecting assembly and a positioning assembly, wherein the connecting assembly comprises a handle, a rotating rod, a circular ring, a limiting plate, a first spring and a bearing seat, a cylindrical groove is formed in one end, close to the cover plate, of the main body, the circular ring is arranged in the groove, the outer ring of the circular ring is connected with the inner wall of the groove, the limiting plate is arranged in the groove, the handle is arranged on one side, far away from the box, of the cover plate, the rotating rod is arranged between the limiting plate and the handle, one end of the rotating rod penetrates through the cover plate to be connected with the handle, the other end of the rotating rod penetrates through the circular ring to be connected with the limiting plate, the rotating rod is in sliding connection with the circular ring, the bearing seat is arranged at the bottom end inside the groove, the first spring is arranged between the rotating rod and the bearing seat, one end of the first spring is connected with the end face of the inner ring of the bearing seat, a strip-shaped sliding groove is formed in the inner ring, the limiting plate penetrates through the sliding groove to abut against one end, close to the bearing seat, and the limiting plate is in sliding connection with the sliding groove;
the locating component comprises a rotating unit and a locating unit, the cover plate is hollow, the rotating unit is arranged in the cover plate, the rotating unit is located on the rotating rod, the rotating unit is connected with the rotating rod, the locating units are two, the two locating units are respectively arranged at two ends of the cover plate, and the locating units are connected with the rotating unit.
Preferably, in order to realize the operation to positioning unit, the rotation unit includes drum, locating bar and auxiliary unit, the locating bar sets up on the bull stick, the drum cover is established on the bull stick, the drum passes through the locating bar and is connected with the bull stick, drum and locating bar sliding connection, the auxiliary unit has a plurality of, and each auxiliary unit evenly sets up along the outer lane circumference of drum, the auxiliary unit is located between the inner wall of drum and apron, the auxiliary unit includes spacing ball and gag lever post, be equipped with annular constant head tank on the inner wall of apron, the axis of constant head tank coincides with the axis of drum, the spacing ball sets up in the constant head tank, the gag lever post sets up between spacing ball and drum, the one end and the spacing ball of gag lever post are connected, the other end and the drum of gag lever post are connected.
Preferably, the outer ring of the wire coil is provided with two positioning rings, and the two positioning rings are respectively positioned at two limiting ends.
Here through setting up two holding rings on the drum, can realize the spacing to the stay cord for better winding is established on the drum, prevents the slip phenomenon.
Preferably, in order to enable the better realization of apron to seal the box, the positioning unit includes locating pin, stay cord, fixed pulley and fixed unit, be equipped with the cylindricality fixed slot on the one end that the box is close to the apron, be equipped with the intercommunication groove on the apron, the locating pin sets up between apron and box, the one end of locating pin stretches into in the fixed slot, the other end of locating pin stretches into in the intercommunication groove, locating pin and intercommunication groove sliding connection, locating pin and fixed slot sliding connection, intercommunication groove and the inside intercommunication of apron, the fixed pulley sets up on the inner wall of apron, the stay cord sets up between locating pin and drum, the one end of stay cord is around establishing on the drum, the other end of stay cord is walked around the fixed pulley and is connected with the locating pin.
Preferably, in order to realize the removal to the locating pin, the fixing unit sets up the fixed slot, the fixing unit includes second spring, locating lever, electro-magnet and supports the ring, the locating lever sets up in the inside bottom of fixed slot, locating lever and the coaxial setting of fixed slot, support and lean on the ring setting in the fixed slot, support and lean on the ring cover to establish on the locating lever, support and lean on ring and locating lever sliding connection, the second spring sets up and lean on the ring one side of keeping away from the locating pin, the second spring cover is established on the locating lever, the one end of second spring is connected with support and lean on the ring, the other end of second spring is connected with the inside bottom of fixed slot, support and lean on the ring one end of keeping away from the second spring and support with the locating pin and lean on, the electro-magnet sets up in one side of locating lever, the one end and the inside bottom of fixed slot of electro-magnet are connected, the other end and the through support and lean on the ring and the locating pin to inhale mutually.
Preferably, a limiting groove is formed in one end, far away from the pull rope, of the positioning pin, the positioning rod stretches into the limiting groove, and the positioning rod is in sliding connection with the limiting groove.
The limiting groove can limit the positioning rod, so that the positioning pin slides in the fixing groove more stably.
The interlocking mechanism for the ring main unit has the beneficial effects that the interlocking mechanism with high safety realizes the positioning of the middle part of the cover plate and the box body through the connecting component, meanwhile, the limiting plate is always abutted against the circular ring through the restoring force of the first spring, the positioning effect is improved, the cover plate is enabled to be abutted against the box body better, the two ends of the cover plate are positioned with the box body through the positioning component, the cover plate is connected with the box body in the opposite direction, the connecting effect is improved, the positioning of the cover plate is realized through the positioning pin, the cover plate is better connected with the box body through the connecting component, the limiting of the positioning pin can be realized through the electromagnet, the cover plate can be opened only when the power is off, people are reminded, and the protection of the people is realized.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an interlock mechanism for ring main units with high security according to the present invention;
FIG. 2 is a schematic diagram of the connection structure of the high security interlocking mechanism cover plate, the case and the connection assembly for the ring main unit of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2;
fig. 4 is an enlarged view of a portion B of fig. 2;
FIG. 5 is a schematic diagram of the connection structure of the high-safety interlocking mechanism rotating rod, the locating bar and the limiting plate for the ring main unit;
fig. 6 is an enlarged view of a portion C of fig. 1;
FIG. 7 is a schematic view of the structure of the high-safety interlocking mechanism ring for the ring main unit;
in the figure: 1. the device comprises a box body, a cover plate, a handle, a rotating rod, a circular ring, a limiting plate, a first spring, a bearing seat, a wire coil, a locating bar, a limiting ball, a limiting rod, a locating ring, a locating pin, a pull rope, a fixed pulley, a second spring, a locating rod, an electromagnet and an abutting ring.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
As shown in fig. 1, the high-safety interlocking mechanism for the ring main unit comprises a box body 1, a cover plate 2 and a connecting mechanism, wherein the box body 1 is vertically arranged, one end of the box body 1 is provided with an opening, the cover plate 2 is arranged at the opening, one end of the cover plate 2 is hinged with one side of the opening of the box body 1, and the other end of the cover plate 2 is connected with the other side of the opening of the box body 1 through the connecting mechanism.
Here, the multidirectional connection of the cover plate 2 and the box body 1 is realized through the connecting mechanism, so that the connecting effect is improved, and the safety is improved.
As shown in fig. 2-5, the connecting mechanism comprises a connecting component and a positioning component, the connecting component comprises a handle 3, a rotating rod 4, a circular ring 5, a limiting plate 6, a first spring 7 and a bearing seat 8, a cylindrical groove is formed in one end of the main body, which is close to the cover plate 2, the circular ring 5 is arranged in the groove, the outer ring of the circular ring 5 is connected with the inner wall of the groove, the limiting plate 6 is arranged in the groove, the handle 3 is arranged on one side, which is far away from the box body 1, of the cover plate 2, the rotating rod 4 is arranged between the limiting plate 6 and the handle 3, one end of the rotating rod 4 passes through the cover plate 2 to be connected with the handle 3, the other end of the rotating rod 4 passes through the circular ring 5 to be connected with the limiting plate 6, the rotating rod 4 is in sliding connection with the circular ring 5, the bearing seat 8 is arranged at the bottom end inside the groove, the first spring 7 is arranged between the rotating rod 4 and the bearing seat 8, one end of the first spring 7 is connected with the inner ring of the rotating rod 4, the other end of the first spring 7 is connected with the end of the bearing seat 8, a sliding groove is arranged on the inner ring of the circular ring 5, one end of the rotating rod 6 passes through the bar-shaped plate 6 to be close to the limiting plate 6, and is connected with the limiting plate 6 in a sliding way;
the locating component comprises a rotating unit and two locating units, the cover plate 2 is arranged in a hollow mode, the rotating unit is arranged in the cover plate 2 and located on the rotating rod 4, the rotating unit is connected with the rotating rod 4, the two locating units are respectively arranged at two ends of the cover plate 2, and the locating units are connected with the rotating unit.
Preferably, in order to realize the operation to the positioning unit, the rotation unit includes drum 9, locating bar 10 and auxiliary unit, locating bar 10 sets up on bull stick 4, drum 9 cover is established on bull stick 4, drum 9 is connected with bull stick 4 through locating bar 10, drum 9 and locating bar 10 sliding connection, auxiliary unit has a plurality of, and each auxiliary unit evenly sets up along the outer lane circumference of drum 9, auxiliary unit is located between drum 9 and the inner wall of apron 2, auxiliary unit includes spacing ball 11 and gag lever post 12, be equipped with annular constant head tank on the inner wall of apron 2, the axis of constant head tank coincides with the axis of drum 9, spacing ball 11 sets up in the constant head tank, gag lever post 12 sets up between spacing ball 11 and drum 9, the one end and the spacing ball 11 of gag lever post 12 are connected, the other end and the drum 9 of gag lever post 12 are connected.
Preferably, the outer ring of the wire coil 9 is provided with two positioning rings 13, and the two positioning rings 13 are respectively positioned at two limiting ends.
Here, through two positioning rings 13 arranged on the wire coil 9, the limit of the pull rope 15 can be realized, so that the wire coil 9 is wound better, and the slipping phenomenon is prevented.
When the cover plate 2 needs to be opened, the handle 3 is rotated firstly, the handle 3 drives the rotating rod 4 to rotate, the rotating rod 4 drives the limiting plate 6 to rotate, the limiting plate 6 is located in the sliding groove, at the moment, the handle 3 is pulled, the handle 3 drives the rotating rod 4 to move, the rotating rod 4 drives the limiting plate 6 to move, the limiting plate 6 penetrates through the sliding groove, at the moment, the rotating rod 4 rotates, the positioning strip 10 can be driven to rotate, the positioning strip 10 is located in the cover plate 2, the positioning strip 10 can also rotate freely in the cover plate 2 and cannot be blocked, the positioning strip is connected with the spring through the bearing seat 8, the first spring 7 is driven to rotate simultaneously when the rotating rod 4 rotates, the first spring 7 can rotate freely, at the moment, when the cover plate 2 is in a closed state, the first spring 7 is in a compressed state, so that the limiting plate 6 can abut against the ring 5 better, and the connecting effect of the cover plate 2 to the box body 1 is improved.
Here, through the cooperation of gag lever post 12 and spacing pearl, realize the spacing to drum 9, prevent that drum 9 from sliding on bull stick 4 for drum 9 is more stable when rotating.
Here, the rotation of the rotating rod 4 drives the positioning bar 10 to rotate, the positioning bar 10 drives the wire coil 9 to rotate, the wire coil 9 drives the limiting rod 12 to rotate, and the limiting rod 12 drives the limiting ball 11 to rotate in the positioning groove, so that the operation of the positioning unit is driven.
As shown in fig. 6 to 7, preferably, in order to enable the cover plate 2 to better realize the sealing of the box body 1, the positioning unit comprises a positioning pin 14, a pull rope 15, a fixed pulley 16 and a fixing unit, one end of the box body 1, which is close to the cover plate 2, is provided with a cylindrical fixing groove, the cover plate 2 is provided with a communicating groove, the positioning pin 14 is arranged between the cover plate 2 and the box body 1, one end of the positioning pin 14 stretches into the fixing groove, the other end of the positioning pin 14 stretches into the communicating groove, the positioning pin 14 is in sliding connection with the fixing groove, the communicating groove is communicated with the inside of the cover plate 2, the fixed pulley 16 is arranged on the inner wall of the cover plate 2, the pull rope 15 is arranged between the positioning pin 14 and the wire coil 9, one end of the pull rope 15 is wound on the wire coil 9, and the other end of the pull rope 15 bypasses the fixed pulley 16 to be connected with the positioning pin 14.
Preferably, in order to realize the movement of the positioning pin 14, the fixing unit is disposed in a fixing groove, the fixing unit includes a second spring 17, a positioning rod 18, an electromagnet 19 and an abutment ring 20, the positioning rod 18 is disposed at the bottom end of the fixing groove, the positioning rod 18 is disposed coaxially with the fixing groove, the abutment ring 20 is disposed in the fixing groove, the abutment ring 20 is sleeved on the positioning rod 18, the abutment ring 20 is slidably connected with the positioning rod 18, the second spring 17 is disposed at one side of the abutment ring 20 far away from the positioning pin 14, the second spring 17 is sleeved on the positioning rod 18, one end of the second spring 17 is connected with the abutment ring 20, the other end of the second spring 17 is connected with the bottom end of the fixing groove, one end of the abutment ring 20 far away from the second spring 17 abuts against the positioning pin 14, the electromagnet 19 is disposed at one side of the positioning rod 18, one end of the electromagnet 19 is connected with the bottom end of the fixing groove, and the other end of the electromagnet 19 is attracted to the positioning pin 14 through the abutment ring 20.
The rotation of the wire coil 9 is realized through the rotation of the rotating rod 4, so that the pull rope 15 is wound on the wire coil 9, at the moment, the pull rope 15 drives the positioning pin 14 to move, so that the positioning pin 14 moves towards the fixed pulley 16, and is separated from the fixed groove, at the moment, the electromagnet 19 has no suction force only when the power is cut off, so that the movement of the positioning pin 14 can be realized, the people can be reminded, the protection of the people is realized, and when the cover plate 2 is in a closed state, the power is switched on, at the moment, the positioning pin 14 is limited through the suction force of the electromagnet 19, the movement of the positioning pin 14 is prevented, the second spring 17 at the moment is in a compressed state, the limiting of the positioning ring 20 is realized through the positioning rod 18, the sliding of the positioning ring 20 in the fixed groove is more stable, and the positioning pin 14 is better abutted against the positioning ring 20.
Here realize the diversified connection to apron 2 and box 1 through coupling assembling and locating component, not only improved the connection effect, improved the security, can warn people's the closure of power and the condition of opening simultaneously, improved the practicality of use to here locating component is the relation of linkage with coupling assembling, makes only need can realize opening and closing two subassemblies through rotating bull stick 4, has improved the practicality of use.
Preferably, a limit groove is provided at one end of the positioning pin 14 far away from the pull rope 15, the positioning rod 18 extends into the limit groove, and the positioning rod 18 is slidably connected with the limit groove.
The limiting groove can limit the positioning rod 18, so that the positioning pin 14 slides in the fixing groove more stably.
Compared with the prior art, this an interlocking device that security is high for looped netowrk cabinet passes through coupling assembling, realize the location between apron 2 middle part and the box 1, simultaneously through the restoring force of first spring 7, make limiting plate 6 support with ring 5 all the time, improve the positioning effect, make apron 2 better support with box 1 and lean on, and here pass through positioning assembly, make the both ends of apron 2 fix a position with box 1, realize being connected with box 1 to apron 2 orientation, promote the connection effect, and here realize the location to apron 2 through locating pin 14, make apron 2 better be connected with box 1 through coupling assembling, but also can realize spacing to locating pin 14 through electro-magnet 19, here only can realize opening to apron 2 when the outage, thereby remind the people, realize the protection to people.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (1)
1. The interlocking mechanism is characterized by comprising a box body (1), a cover plate (2) and a connecting mechanism, wherein the box body (1) is vertically arranged, one end of the box body (1) is provided with an opening, the cover plate (2) is arranged at the opening, one end of the cover plate (2) is hinged with one side of the opening of the box body (1), and the other end of the cover plate (2) is connected with the other side of the opening of the box body (1) through the connecting mechanism;
the connecting mechanism comprises a connecting assembly and a locating assembly, the connecting assembly comprises a handle (3), a rotating rod (4), a circular ring (5), a limiting plate (6), a first spring (7) and a bearing seat (8), a cylindrical groove is formed in one end, close to a cover plate (2), of the box body, the circular ring (5) is arranged in the groove, the outer ring of the circular ring (5) is connected with the inner wall of the groove, the limiting plate (6) is arranged in the groove, the handle (3) is arranged on one side, far away from the box body (1), of the cover plate (2), the rotating rod (4) is arranged between the limiting plate (6) and the handle (3), one end of the rotating rod (4) penetrates through the cover plate (2) to be connected with the handle (3), the other end of the rotating rod (4) penetrates through the circular ring (5) to be connected with the limiting plate (6), the bearing seat (8) is arranged at the bottom end inside the groove, the first spring (7) is arranged between the rotating rod (4) and the bearing seat (8), one end of the first spring (7) is connected with the inner ring (7) in a sliding mode, the limiting plate (6) passes through the sliding groove and is abutted against one end, close to the bearing seat (8), of the circular ring (5), and the limiting plate (6) is in sliding connection with the sliding groove;
the positioning assembly comprises a rotating unit and two positioning units, wherein the cover plate (2) is arranged in a hollow mode, the rotating unit is arranged in the cover plate (2) and is positioned on the rotating rod (4), the rotating unit is connected with the rotating rod (4), the two positioning units are respectively arranged at two ends of the cover plate (2), and the positioning units are connected with the rotating unit;
the rotary unit comprises a wire coil (9), a locating bar (10) and auxiliary units, wherein the locating bar (10) is arranged on the rotating rod (4), the wire coil (9) is sleeved on the rotating rod (4), the wire coil (9) is connected with the rotating rod (4) through the locating bar (10), the wire coil (9) is in sliding connection with the locating bar (10), the auxiliary units are uniformly arranged along the circumferential direction of the outer ring of the wire coil (9), the auxiliary units are positioned between the wire coil (9) and the inner wall of the cover plate (2), the auxiliary units comprise limiting balls (11) and limiting rods (12), annular locating grooves are formed in the inner wall of the cover plate (2), the axis of each locating groove coincides with the axis of the wire coil (9), the limiting balls (11) are arranged in the locating grooves, the limiting rods (12) are arranged between the limiting balls (11) and the wire coil (9), one ends of the limiting rods (12) are connected with the limiting balls (11), and the other ends of the limiting rods (12) are connected with the wire coil (9).
The outer ring of the wire coil (9) is provided with two positioning rings (13), and the two positioning rings (13) are respectively positioned at two limiting ends;
the positioning unit comprises a positioning pin (14), a pull rope (15), a fixed pulley (16) and a fixing unit, wherein a cylindrical fixing groove is formed in one end, close to the cover plate (2), of the box body (1), a communicating groove is formed in the cover plate (2), the positioning pin (14) is arranged between the cover plate (2) and the box body (1), one end of the positioning pin (14) stretches into the fixing groove, the other end of the positioning pin (14) stretches into the communicating groove, the positioning pin (14) is in sliding connection with the fixing groove, the communicating groove is communicated with the inside of the cover plate (2), the fixed pulley (16) is arranged on the inner wall of the cover plate (2), the pull rope (15) is arranged between the positioning pin (14) and the wire coil (9), one end of the pull rope (15) is wound on the wire coil (9), and the other end of the pull rope (15) bypasses the fixed pulley (16) to be connected with the positioning pin (14).
The fixing unit is arranged in a fixing groove and comprises a second spring (17), a locating rod (18), an electromagnet (19) and an abutting ring (20), wherein the locating rod (18) is arranged at the bottom end inside the fixing groove, the locating rod (18) is coaxially arranged with the fixing groove, the abutting ring (20) is arranged in the fixing groove, the abutting ring (20) is sleeved on the locating rod (18), the abutting ring (20) is in sliding connection with the locating rod (18), the second spring (17) is arranged at one side, far away from the locating pin (14), of the abutting ring (20), the second spring (17) is sleeved on the locating rod (18), one end of the second spring (17) is connected with the abutting ring (20), the other end of the second spring (17) is connected with the bottom end inside the fixing groove, one end, far away from the second spring (17), of the abutting ring (20) abuts against the locating pin (14), the electromagnet (19) is arranged at one side, far away from the locating pin (18), of the electromagnet (19) is connected with the other end, and the other end, which is connected with the electromagnet (14) through the locating pin (14);
one end of the locating pin (14) far away from the pull rope (15) is provided with a limiting groove, the locating rod (18) stretches into the limiting groove, and the locating rod (18) is in sliding connection with the limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554096.2A CN114242485B (en) | 2021-12-17 | 2021-12-17 | High-safety interlocking mechanism for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111554096.2A CN114242485B (en) | 2021-12-17 | 2021-12-17 | High-safety interlocking mechanism for ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242485A CN114242485A (en) | 2022-03-25 |
| CN114242485B true CN114242485B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111554096.2A Active CN114242485B (en) | 2021-12-17 | 2021-12-17 | High-safety interlocking mechanism for ring main unit |
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| CN (1) | CN114242485B (en) |
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| CN214412034U (en) * | 2021-03-17 | 2021-10-15 | 美仪电气有限公司 | High-reliability ring main unit with locking mechanism |
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| DE10307944B4 (en) * | 2003-02-25 | 2005-08-18 | Berthold Sichert Gmbh | Retractable distribution cabinet |
| JP5650971B2 (en) * | 2010-09-30 | 2015-01-07 | 矢崎総業株式会社 | Switch device |
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|---|---|---|---|---|
| EP0847120A2 (en) * | 1996-12-09 | 1998-06-10 | Barat S.A. | Sealed, retractable cabinet for electric power distribution |
| CN208089039U (en) * | 2018-03-28 | 2018-11-13 | 刘芳 | A kind of lock construction of ring main unit cabinet door |
| CN210110585U (en) * | 2019-06-28 | 2020-02-21 | 国网甘肃省电力公司白银供电公司 | Anti-misoperation device for grounding switch of ring main unit |
| CN210489470U (en) * | 2019-11-28 | 2020-05-08 | 南洋电气集团有限公司 | Inflatable Ring Main Unit Interlocking Mechanism |
| CN212587898U (en) * | 2020-07-08 | 2021-02-23 | 陕西宇澳电器有限公司 | Power distribution cabinet with alarm device |
| CN213304652U (en) * | 2020-09-24 | 2021-05-28 | 中环能江苏电力工程有限公司 | Looped netowrk cabinet based on high security performance locking device of thing networking |
| CN214412034U (en) * | 2021-03-17 | 2021-10-15 | 美仪电气有限公司 | High-reliability ring main unit with locking mechanism |
| CN113471868A (en) * | 2021-08-05 | 2021-10-01 | 张志杨 | Trigger type electric shock prevention and high temperature prevention early warning type ring main unit box door |
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| CN114242485A (en) | 2022-03-25 |
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