CN110931285A - Interlocking structure for cable chamber door of ring main unit - Google Patents
Interlocking structure for cable chamber door of ring main unit Download PDFInfo
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- CN110931285A CN110931285A CN201911367729.1A CN201911367729A CN110931285A CN 110931285 A CN110931285 A CN 110931285A CN 201911367729 A CN201911367729 A CN 201911367729A CN 110931285 A CN110931285 A CN 110931285A
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- Prior art keywords
- component
- rack
- interlocking structure
- ring main
- hole
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- 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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Abstract
The invention provides an interlocking structure for a cable chamber door of a ring main unit. The interlocking structure comprises a first member, a second member, a third member, a fourth member, a fifth member, a sixth member, a first frame, a second frame and a reset tension spring; the second member and the sixth member are fixed on the first rack, the third member and the fifth member are fixed on the second rack, the fourth member is clamped at one end of the third member, the first member is arranged at one side of the second member and can move left and right, one end of the return spring is hooked on the third member, and the other end of the return spring is hooked on the second rack; the top that the second component stretches out second frame one end is equipped with the inclined plane, establishes the joint post on the third component, and the joint post can slide on the inclined plane, and the draw-in groove is established to the bottom that the second component stretches out second frame one end, and the other end of fifth component can joint in the draw-in groove rotating the in-process. The interlocking structure has the advantages of small and reliable structure, high locking strength and convenience in installation, maintenance and replacement.
Description
Technical Field
The invention relates to a ring main unit, in particular to an interlocking structure for a cable chamber door of the ring main unit.
Background
The Ring Main Unit (Ring Main Unit) is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval Ring Main power supply Unit, and the core part of the Ring Main Unit adopts a load switch and a fuse, so that the Ring Main Unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like.
The five-prevention interlocking of the ring main unit specifically means that the inflatable ring main unit is prevented from being provided with a load switch and a load switch; the circuit breaker, the high-voltage load switch and the alternating current contactor are prevented from being switched off and on by mistake; the circuit breaker and the high-voltage load switch are prevented from being switched off when the grounding switch is in a closed state; the grounding switch is prevented from being switched on by mistake when induction electrification is carried out; the induction electrification chamber is prevented from being entered by mistake.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an interlocking structure for a cable chamber door of a ring main unit.
The invention provides an interlocking structure for a cable chamber door of a ring main unit, which adopts the technical scheme that:
the first member, the second member, the third member, the fourth member, the fifth member, the sixth member, the first frame, the second frame and the return tension spring are included;
the second member and the sixth member are fixed on the first rack, the third member and the fifth member are fixed on the second rack, the fourth member is clamped at one end of the third member, the first member is arranged at one side of the second member and can move left and right, one end of the return spring is hooked on the third member, and the other end of the return spring is hooked on the second rack connecting piece;
the top of one end, extending out of the second rack, of the second component is provided with an inclined plane, the third component is provided with a clamping column, and the clamping column can slide on the inclined plane; the bottom that the second component stretches out second frame one end is provided with the draw-in groove, the other end of fifth component rotate the in-process can the joint in the draw-in groove.
The invention provides an interlocking structure for a cable chamber door of a ring main unit, which further comprises the following auxiliary technical scheme:
wherein when the first member is moved over the second member, the second member is able to bear against the first member such that the second member cannot move upwardly; when the first member moves to one side of the second member, the second member is offset from the first member, and the second member can move upward.
The first member is provided with a convex edge, the second member is provided with a baffle, and when the first member moves towards the second member, the baffle on the second member ensures that the first member moves above the second member.
The top that the second component stretches out second frame one end is provided with the inclined groove, the joint post can slide on the inclined plane of inclined groove.
The second frame is provided with a strip-shaped through hole, and the second member extends out of the strip-shaped through hole and can move up and down through the strip-shaped through hole.
The connecting piece is arranged on the second rack and is opposite to the connecting piece up and down, a first through hole is formed in the connecting piece, a second through hole is formed in the fourth component, one end of the third component sequentially penetrates through the first through hole in the connecting piece on the lower portion of the second rack and the second through hole in the fourth component, the other end of the third component is fixed on the second rack after penetrating through the first through hole in the connecting piece on the lower portion of the second rack, and the third component can move along the direction of the through holes.
The middle part of the fifth component is fixed on the second frame through a fastener, and the fifth component can rotate by taking the fastener as a fulcrum.
Wherein a copper bushing is arranged at a fixed position of the fifth component and the second frame.
The third member is provided with a clamping block, the second frame lower connecting piece is provided with a clamping hole, one end of the reset tension spring is hooked on the clamping block, and the other end of the reset tension spring is hooked in the clamping hole.
The interlocking structure further comprises an auxiliary tension spring, one end of the auxiliary tension spring is hooked on the second rack connecting piece, and the other end of the auxiliary tension spring is hooked on the fifth component.
The implementation of the invention comprises the following technical effects:
the interlocking structure for the cable chamber door of the ring main unit has the advantages of small and reliable structure, high locking strength and convenience in installation, maintenance and replacement.
Drawings
Fig. 1 is a schematic view of an angle of an interlocking structure for a cable chamber door of a ring main unit according to the present invention.
Fig. 2 is a schematic structural view of another angle of the interlocking structure for the cable chamber door of the ring main unit according to the invention.
Fig. 3 is a partial structural schematic diagram of an interlocking structure for a cable chamber door of a ring main unit according to the present invention.
Fig. 4 is a front view of an interlocking structure for cable chamber doors of a ring main unit according to the present invention.
In the figure, 1-a first component, 2-a second component, 3-a third component, 4-a fourth component, 5-a fifth component, 6-a sixth component, 7-a first frame, 8-a second frame, 9-a reset tension spring, 10-a fastener, 11-a copper shaft sleeve, 12-an auxiliary tension spring, 101-a convex edge, 21-an inclined plane, 22-a clamping groove, 23-a blocking piece, 31-a clamping column, 32-a clamping block, 41-a second through hole, 81-a long strip-shaped through hole, 82-a connecting piece, 83-a first through hole and 84-a clamping hole.
Detailed Description
The present invention will be described in detail below with reference to embodiments and drawings, it being noted that the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit it in any way.
The orientations described in the present application, such as up, down, left, right, and left, are convenient to use and described with reference to the drawings, and do not limit the scope of protection.
The interlocking structure for the cable chamber door of the ring main unit, as shown in fig. 1-4, comprises a first member 1, a second member 2, a third member 3, a fourth member 4, a fifth member 5, a sixth member 6, a first frame 7, a second frame 8 and a reset tension spring 9;
the second member 2 and the sixth member 6 are fixed on the first frame 1, the third member 3 and the fifth member 5 are fixed on the second frame 2, the fourth member 4 is clamped at one end of the third member 3, the first member 1 is arranged at one side of the second member 2 and can move left and right, one end of the return spring 9 is hooked on the third member 3, and the other end is hooked on the second frame connecting piece 82;
an inclined surface 21 is arranged at the top of one end, extending out of the second frame 8, of the second member 2, a clamping column 31 is arranged on the third member 3, and the clamping column 31 can slide on the inclined surface 21; the bottom of the second member 2 extending out of one end of the second frame 8 is provided with a clamping groove 22, and the other end of the fifth member 5 can be clamped in the clamping groove 22 in the rotating process. Wherein the fourth member 4 is a power distribution chamber door. The interlocking structure for the cable chamber door of the ring main unit has the advantages of small and reliable structure, high locking strength and convenience in installation, maintenance and replacement.
In one embodiment, as shown in fig. 1-4, when the first member 1 is moved to the right above the second member 2, the second member 2 can abut against the first member 1 such that the second member 2 cannot move upward; when the first member 1 moves to the left to one side of the second member 2, the second member 2 is misaligned with the first member 1 so that the second member 2 can move upward.
In one embodiment, as shown in fig. 1-4, the second member 2 can be prevented from moving upward by providing the first member 1 with a convex edge 101 and providing the second member 2 with a stop piece 23, wherein when the first member 1 moves to the second member 2 in the right direction, the stop piece 23 of the second member 2 can ensure that the convex edge 101 of the first member 1 is above the stop piece 23 of the second member.
In one embodiment, the top of the second member 2 extending out of the second frame 8 is provided with an inclined groove, and the clamping column 31 can slide on the inclined surface 21 of the inclined groove.
In one embodiment, as shown in fig. 1, the second frame 8 is provided with an elongated through hole 81, and the second member 2 extends out of the elongated through hole 81 and can move up and down through the elongated through hole 81.
In one embodiment, as shown in fig. 2 to 3, the second frame 8 is provided with a connecting piece 82 which is opposite to each other up and down, the connecting piece 82 is provided with a first through hole 83, the fourth member 4 is provided with a second through hole 41, one end of the third member 3 sequentially passes through the first through hole 83 on the connecting piece 82 at the lower part of the second frame 8 and the second through hole 41 on the fourth member 4, the other end passes through the first through hole 83 on the connecting piece 82 at the lower part of the second frame 8 and then is fixed on the second frame 8, and the third member can move along the direction of the through holes; that is, the third member 3 passes through both the through holes at the same time.
It should be noted that the second member 2 only passes through the elongated through hole 81 of the second frame 8, and the guiding of the second member 2 is formed by the connection of the second member 2 with the first frame 7 and the second frame 8.
In one embodiment, as shown in fig. 3, the middle portion of the fifth member 5 is fixed to the second frame 8 by a fastener 10, and the fifth member 5 can rotate around the fastener 10.
In one embodiment, as shown in fig. 3, a copper bushing 11 is provided at the fixing position of the fifth member 5 and the second frame 8.
It should be noted that, there is also a copper bushing at the junction of the second member 2 and the third member 3 for reducing the frictional resistance.
In one embodiment, as shown in fig. 3, a clamping block 32 is disposed on the third member 3, a clamping hole 84 is disposed on the lower connecting piece 82 of the second frame 8, one end of the return tension spring 9 is hooked on the clamping block 32, and the other end is hooked in the clamping hole 84.
Wherein, the interlocking structure further comprises an auxiliary tension spring 12, one end of the auxiliary tension spring 12 is hooked on the second rack connecting piece 82, and the other end is hooked on the fifth component 5.
The interlocking structure for cable chamber door of ring main unit is provided locally with a new type, its working process is as follows:
when the grounding switch is in the opening position, the first member 1 moves rightwards to be right above the second member 2, and the baffle piece 23 on the second member 2 can abut against the convex edge 101 of the first member 1, so that the second member 2 cannot move upwards; when the grounding switch is in the switching-on position, the first member 1 moves to the left to one side of the second member 2, the second member 2 is staggered with the first member 1, and the second member 2 can move upwards. In the process of lifting the second component 2, the clamping column 31 of the third component 3 can slide along the inclined plane on the inclined groove of the second component 2, so that the third component 3 is driven to move backwards, and after the third component 3 moves to the right position, the clamping column 31 on the third component 3 can be clamped at the bottom of the inclined groove of the second component 2, so that the second component 2 can be prevented from falling under the action of gravity; meanwhile, after the second member 2 is lifted to the right position, the sixth member 6 can be blocked, so that the sixth member 6 cannot slide leftwards to shield the grounding switch operation hole, and the grounding switch cannot be operated in a switching-on position; when the third member 3 is moved backward to a position where the third member 3 is no longer inserted into the second through hole 41 of the fourth member 4, the fourth member 4 can be moved upward to lift the cable chamber door (fourth member 4); when the fourth member 4 is lifted upwards, the fifth member 5 is no longer blocked by the fourth member 4, the fifth member 5 rotates clockwise (from top to bottom) under the action of the auxiliary tension spring 12, the fifth member 5 rotates clockwise and then is clamped into the clamping groove 22 of the second member 2, the second member 2 is completely locked, so that the second member 2 can be further prevented from moving downwards, and the grounding switch is forbidden to be operated; when the cable chamber door is installed, the fourth member 4 presses the fifth member 5, so that the fifth member 5 rotates anticlockwise, the fifth member 5 is moved out of the clamping groove 22 of the second member 2, the fourth member 4 moves downwards, the second member 2 is manually pressed downwards at the moment, one end of the third member 3 is reset and clamped into the second through hole 41 of the fourth member 4, so that the cable chamber door (the fourth member 4) cannot be lifted, the second member 2 does not block the sixth member 6, the sixth member 6 slides leftwards to give way of the grounding switch operating hole, the grounding switch is operated to be opened, and the cable chamber door is closed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. An interlocking structure for a cable chamber door of a ring main unit is characterized by comprising a first component, a second component, a third component, a fourth component, a fifth component, a sixth component, a first rack, a second rack and a reset tension spring;
the second member and the sixth member are fixed on the first rack, the third member and the fifth member are fixed on the second rack, the fourth member is clamped at one end of the third member, the first member is arranged at one side of the second member and can move left and right, one end of the return spring is hooked on the third member, and the other end of the return spring is hooked on the second rack;
the top of one end, extending out of the second rack, of the second component is provided with an inclined plane, the third component is provided with a clamping column, and the clamping column can slide on the inclined plane; the bottom that the second component stretches out second frame one end is provided with the draw-in groove, the other end of fifth component rotate the in-process can the joint in the draw-in groove.
2. The interlocking structure for cable chamber doors of ring main units according to claim 1, wherein: when the first member is moved over the second member, the second member can abut against the first member so that the second member cannot move upward; when the first member moves to one side of the second member, the second member is offset from the first member, and the second member can move upward.
3. An interlocking structure for cable chamber doors of ring main units according to claim 2, wherein: the first member is provided with a convex edge, the second member is provided with a baffle, and when the first member moves towards the second member, the baffle on the second member ensures that the first member moves above the second member.
4. The interlocking structure for cable chamber doors of ring main units according to claim 1, wherein: the top that the second component stretches out second frame one end is provided with the inclined groove, the joint post can slide on the inclined plane of inclined groove.
5. An interlocking structure for cable chamber doors of ring main units according to any one of claims 1 to 4, wherein: the second frame is provided with a strip-shaped through hole, and the second member extends out of the strip-shaped through hole and can move up and down through the strip-shaped through hole.
6. An interlocking structure for cable chamber doors of ring main units according to claim 5, wherein: the connecting piece is arranged on the second rack and is opposite to the connecting piece up and down, a first through hole is formed in the connecting piece, a second through hole is formed in the fourth component, one end of the third component sequentially penetrates through the first through hole in the connecting piece on the lower portion of the second rack and the second through hole in the fourth component, the other end of the third component is fixed on the second rack after penetrating through the first through hole in the connecting piece on the lower portion of the second rack, and the third component can move along the direction of the through holes.
7. An interlocking structure for cable chamber doors of ring main units according to claim 5, wherein: the middle part of the fifth component is fixed on the second frame through a fastener, and the fifth component can rotate by taking the fastener as a fulcrum.
8. An interlocking structure for cable chamber doors of ring main units according to any one of claims 1 to 4, wherein: and a copper shaft sleeve is arranged at the fixed position of the fifth component and the second frame.
9. An interlocking structure for cable chamber doors of ring main units according to any one of claims 1 to 4, wherein: the third component is provided with a clamping block, the second frame lower connecting piece is provided with a clamping hole, one end of the reset tension spring is hooked on the clamping block, and the other end of the reset tension spring is hooked in the clamping hole.
10. An interlocking structure for cable chamber doors of ring main units according to any one of claims 1 to 4, wherein: the interlocking structure further comprises an auxiliary tension spring, one end of the auxiliary tension spring is hooked on the second rack, and the other end of the auxiliary tension spring is hooked on the fifth component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367729.1A CN110931285A (en) | 2019-12-26 | 2019-12-26 | Interlocking structure for cable chamber door of ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367729.1A CN110931285A (en) | 2019-12-26 | 2019-12-26 | Interlocking structure for cable chamber door of ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110931285A true CN110931285A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911367729.1A Pending CN110931285A (en) | 2019-12-26 | 2019-12-26 | Interlocking structure for cable chamber door of ring main unit |
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| Country | Link |
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| CN (1) | CN110931285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068233A (en) * | 2021-11-02 | 2022-02-18 | 裕力电气集团有限公司 | Load switch convenient to change linkage |
-
2019
- 2019-12-26 CN CN201911367729.1A patent/CN110931285A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068233A (en) * | 2021-11-02 | 2022-02-18 | 裕力电气集团有限公司 | Load switch convenient to change linkage |
| CN114068233B (en) * | 2021-11-02 | 2024-05-07 | 裕力电气集团有限公司 | Load switch convenient for replacing linkage mechanism |
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