CN113725023A - Lower door hard interlocking mechanism of ring main unit and ring main unit - Google Patents
Lower door hard interlocking mechanism of ring main unit and ring main unit Download PDFInfo
- Publication number
- CN113725023A CN113725023A CN202111094940.8A CN202111094940A CN113725023A CN 113725023 A CN113725023 A CN 113725023A CN 202111094940 A CN202111094940 A CN 202111094940A CN 113725023 A CN113725023 A CN 113725023A
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- connecting rod
- lower door
- link
- main unit
- ring main
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 230000009471 action Effects 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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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- Cabinets, Racks, Or The Like Of Rigid Construction (AREA)
Abstract
本发明提供一种环网柜的下门硬联锁机构及环网柜，当需要对下门进行锁止时，第二连杆在外力作用下绕其转动中心逆时针转动，从而带动第一连杆向上移动，第一连杆拉动第三连杆绕其转动中心逆时针转动，从而使得插销插入下门的插孔内，与下门配合锁止。由于第二连杆和第三连杆各自的转动中心均被定位于柜体或机构上，因此无需像现有技术中需要在第一连杆上设置导向孔，这样第一连杆结构未被破坏，不容易变形。第二连杆和第三连杆的宽度方向沿柜体的高度延伸，当操作人员在下门未关严的情况下、驱动门硬联锁机构向下移动时，平板的宽度方向会受到挤压力作用，由于平板的宽度要远大于其厚度，与现有技术相比，这样第二连杆和第三连杆更不容易变形。
The invention provides a lower door hard interlocking mechanism of a ring network cabinet and the ring network cabinet. When the lower door needs to be locked, the second connecting rod rotates counterclockwise around its rotation center under the action of external force, thereby driving the first connecting rod. The connecting rod moves upward, and the first connecting rod pulls the third connecting rod to rotate counterclockwise around its rotation center, so that the bolt is inserted into the socket of the lower door, and is locked with the lower door. Since the respective rotation centers of the second link and the third link are positioned on the cabinet or mechanism, there is no need to provide a guide hole on the first link as in the prior art, so that the first link structure is not Destruction, not easy to deform. The width direction of the second link and the third link extend along the height of the cabinet. When the operator drives the door hard interlocking mechanism to move down when the lower door is not closed tightly, the width direction of the flat plate will be squeezed. Force action, since the width of the plate is much larger than its thickness, compared with the prior art, the second link and the third link are less likely to deform.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a lower door hard interlocking mechanism of a ring main unit and the ring main unit.
Background
Along with rapid development of economy, urban high-rise buildings and large public buildings are emerging continuously, the requirement on power supply reliability is higher and higher, many users require two or more than two power supplies to supply power, the power supply reliability can be effectively improved, the power supply continuity is ensured by establishing a distribution network mainly based on a ring network structure, the influences of power distribution equipment faults and maintenance power failure are reduced to the minimum, and the ring network cabinet is used as important equipment in a ring network operation mode, and the application of the ring network cabinet in distribution network transformation is also wider and wider.
In order to ensure the maintenance safety, a hard interlocking mechanism is arranged between the grounding switch and the lower door of the prior ring main unit, in order to avoid the fuse tube 07, as shown in fig. 5 and 6, the lower door hard interlocking mechanism includes a second link 02 and a third link 03 which are respectively arranged at the upper and lower sides and are horizontally arranged, and a first connecting rod 01 which is arranged between the second connecting rod 02 and the third connecting rod 03 and is vertically arranged, the first connecting rod 01 is used as an extension bar and is suitable for connecting the second connecting rod 02 and the third connecting rod 03, a bolt 05 which can be inserted into a jack of the lower door 04 in a matching way is arranged at the end part of the third connecting rod 03 far away from the first connecting rod, because the hard interlocking device of lower door wholly reciprocates along vertical direction, and length is longer, consequently need set up guide structure, guide structure is including the shaping on first connecting rod 01, along the vertical guiding hole 06 that sets up to and pass guiding hole 06, with cabinet body curb plate fixed connection's bolt (not drawn in the figure). In use, it often happens that the lower door 04 is not tightly closed (the jack is not aligned with the latch pin 05), the operator drives the lower door hard interlock mechanism to move downwards, because the bolt 05 is pressed against the top of the lower door 04 and can not move downwards, each connecting rod can be stressed by extrusion force, because the guide hole 06 formed on the first connecting rod 01 reduces the strength thereof, causing local stress concentration, the first connecting rod 01 is more easily deformed under the extrusion force, in addition, as shown in fig. 6, for convenience of processing, the first link 01, the second link 02 and the third link 03 are integrally bent and connected, so that the second link 02 and the third link 03 having a flat plate shape are horizontally arranged, the thickness direction of the flat plate link is the same as the direction of the pressing pressure F1, this is more easily deformed, resulting in the need to replace the hard interlock mechanism as a whole, increasing maintenance costs.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defects that the lower door hard interlocking mechanism in the prior art is easy to deform and increases the maintenance cost, so as to provide a lower door hard interlocking mechanism of a ring main unit, which is not easy to deform and has a long service life, and a ring main unit having the lower door hard interlocking mechanism.
Therefore, the invention provides a lower door hard interlocking mechanism of a ring main unit, which comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod is provided with a first end and a second end which are respectively arranged at the two ends of the first connecting rod in the length direction; the second connecting rod and the third connecting rod are rotatably installed on the cabinet body, the second connecting rod is provided with a driving end and a third end which are respectively arranged at two ends of a rotating center of the second connecting rod, the third end is suitable for being rotatably connected with the first end, the third connecting rod is provided with a bolt end and a fourth end which are respectively arranged at two ends of the rotating center of the third connecting rod, a bolt which is in adaptive splicing with a lower door jack is arranged at the bolt end, and the fourth end is suitable for being connected with the second end.
The second connecting rod and the third connecting rod are flat plates, and the width direction of the flat plates extends along the height of the cabinet body.
The first connecting rod is integrally formed.
The first connecting rod comprises at least one connecting rod part and an adjusting rod which can extend and retract relative to the connecting rod part.
The connecting rod part is provided with a threaded hole, and the adjusting rod is provided with a screw rod part in threaded connection with the threaded hole.
The connecting rod portion has two, two connecting rod portion respectively with correspond the second connecting rod with the third connecting rod links to each other, it locates two to adjust the pole between the connecting rod portion, it has respectively with two first screw rod portion and the second screw rod portion that the connecting rod portion corresponds threaded connection.
And the adjusting rod is also provided with a locking nut in threaded connection with the adjusting rod.
The connecting rod part is provided with first through holes which are arranged at intervals along the height direction of the connecting rod part, and/or the adjusting rod is provided with second through holes which are arranged at intervals along the height direction of the adjusting rod, and the connecting rod part is fixedly connected with the adjusting rod after the bolt assembly sequentially penetrates through the first through holes and the second through holes.
The bolt with the third connecting rod rotates and links to each other, the third end of second connecting rod is equipped with rather than the actuating lever that rotates and link to each other, the actuating lever is suitable for the drive the second connecting rod rotates.
The invention also provides a ring main unit, which comprises the lower door hard interlocking mechanism of the ring main unit. The technical scheme of the invention has the following advantages:
1. the invention provides a lower door hard interlocking mechanism of a ring main unit, which comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the second connecting rod and the third connecting rod are rotatably arranged on a cabinet body, the second connecting rod is provided with a driving end and a third end which are respectively arranged at two ends of a rotating center of the second connecting rod, the third end is suitable for being rotatably connected with the first end of the first connecting rod, the third connecting rod is provided with a bolt end and a fourth end which are respectively arranged at two ends of the rotating center of the third connecting rod, a bolt which is in adaptive insertion connection with a lower door jack is arranged at the bolt end, and the fourth end is suitable for being connected with the second end of the first connecting rod. When needs carry out the locking to the lower door, the second connecting rod is rotated around its rotation center anticlockwise under the exogenic action to drive first connecting rod rebound, first connecting rod pulling third connecting rod rotates around its rotation center anticlockwise, thereby makes the bolt insert in the jack of lower door, with lower door cooperation locking. Because the respective rotation centers of the second connecting rod and the third connecting rod are positioned on the cabinet body or the mechanism, namely the rotation tracks of the second connecting rod and the third connecting rod are limited, the guide hole is not required to be arranged on the first connecting rod in the prior art, so that the structure of the first connecting rod is not damaged and is not easy to deform, and the service life is prolonged.
2. According to the lower door hard interlocking mechanism of the ring main unit, the second connecting rod and the third connecting rod are flat plates, the width direction of each flat plate extends along the height of the ring main unit, namely the flat plates are vertically arranged, when an operator drives the door hard interlocking mechanism to move downwards under the condition that the lower door is not closed tightly, the width direction of each flat plate can be stressed by extrusion force, and the width of each flat plate is far larger than the thickness of the flat plate.
3. The invention provides a lower door hard interlocking mechanism of a ring main unit, wherein a first connecting rod comprises: the two connecting rod parts are respectively connected with the corresponding second connecting rod and the third connecting rod; the adjusting rod is arranged between the two connecting rod parts and is provided with a first screw rod part and a second screw rod part which are respectively in corresponding threaded connection with the two connecting rod parts. Through making the regulation pole flexible to can adjust the length of first connecting rod, with the looped netowrk cabinet that is applicable to different producers production, reduce the high accuracy requirement to cabinet body lower door.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a ring main unit according to the present invention;
fig. 2 is a perspective view of a lower door hard interlocking mechanism of the ring main unit;
FIG. 3 is an exploded view of the first link;
FIG. 4 is a perspective view of the second or third link;
fig. 5 is a perspective view of a ring main unit in the prior art;
fig. 6 is a perspective view of a lower door hard interlocking mechanism of a ring main unit in the prior art.
Description of reference numerals: 01. a first link; 02. a second link; 03. a third link; 04. a lower door; 05. a bolt; 06. a guide hole; 07. a fuse tube;
1. a first link; 11. a first end; 12. a second end; 13. a link section; 14. adjusting a rod; 15. a first screw section; 16. a second screw section; 17. locking the nut; 2. a second link; 21. a driving end; 22. a third end; 3. a third link; 31. a plug end; 32. a fourth end; 4. a cabinet body; 5. a lower door; 6. a bolt; 7. a drive rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides a ring main unit, which comprises a lower door hard interlocking mechanism, as shown in fig. 1 and 2, wherein the lower door hard interlocking mechanism comprises a first connecting rod 1, a second connecting rod 2 and a third connecting rod 3.
First connecting rod 1, along vertical locate in cabinet body 4, it has first end 11 and second end 12 of locating length direction both ends separately, as shown in fig. 2 and 3, first connecting rod 1 includes: two link portions 13 connected to the corresponding second link 2 and third link 3, respectively; an adjusting rod 14, which is arranged between the two connecting rod parts 13 and is provided with a first screw rod part 15 and a second screw rod part 16 which are respectively in corresponding threaded connection with the two connecting rod parts 13; and the locking nut 17 is suitable for locking and connecting the adjusting rod 14 and the connecting rod part 13. In this embodiment, one of the first screw portion 15 and the second screw portion 16 is a left-handed screw, and the other is a right-handed screw. The body of the first link 1 is cylindrical.
In an alternative embodiment, the first screw portion 15 and the second screw portion 16 have the same screw direction.
As an alternative embodiment, the link portion 13 has first through holes (not shown) spaced apart along the height direction thereof, the adjustment lever 14 has second through holes (not shown) spaced apart along the height direction thereof, and the pin assembly passes through the first through holes and the second through holes in sequence to fixedly connect the link portion 13 and the adjustment lever 14. The latch assembly is assembled with the first and second through holes at different height positions, so that the length of the entire first link 1 can be adjusted.
As an alternative embodiment, the first connecting rod 1 is integrally formed, i.e. the length of the first connecting rod 1 is not adjustable.
The second connecting rod 2 and the third connecting rod 3 are both rotatably mounted on the cabinet 4, as shown in fig. 2, the second connecting rod 2 has a driving end 21 and a third end 22 respectively disposed at two ends of a rotation center a (the rotation center a is located on the mechanism), the third end 22 is adapted to be rotatably connected with the first end 11, the third connecting rod 3 has a plug end 31 and a fourth end 32 respectively disposed at two ends of a rotation center B (the rotation center B is located on the cabinet), the plug end 31 is provided with a plug 6 adapted to be plugged into a jack of the lower door 5, and the fourth end 32 is adapted to be connected with the second end 12. In this embodiment, as shown in fig. 4, the second link 2 and the third link 3 are both flat plates, and the width direction of the flat plates extends along the height of the cabinet 4. The bolt 6 is rotatably connected with the third connecting rod 3; the third end 22 of the second connecting rod 2 is provided with a driving rod 7 which is connected with the second connecting rod in a rotating way, and the driving rod 7 is suitable for driving the second connecting rod 2 to rotate.
It should be noted that, in this embodiment, the ring main unit is provided with two sets of lower door hard interlocking mechanisms, one set of which is suitable for interlocking between the earthing switch and the lower door, and the other set of which is suitable for interlocking between the upper door and the lower door of the cabinet body.
According to the lower door hard interlocking mechanism of the ring main unit, when the lower door 5 needs to be locked, the second connecting rod 2 rotates anticlockwise around the rotating center of the second connecting rod under the action of external force, so that the first connecting rod 1 is driven to move upwards, the first connecting rod 1 further pulls the third connecting rod 3 to rotate anticlockwise around the rotating center of the third connecting rod, and the bolt 6 is inserted into the jack of the lower door 5 and is matched with the lower door 5 to be locked. Because the respective rotation centers of the second connecting rod 2 and the third connecting rod 3 are positioned on the cabinet body 4 or the mechanism, that is, the rotation tracks of the second connecting rod 2 and the third connecting rod 3 are limited, there is no need to provide a guide hole on the first connecting rod like the prior art, and thus the structure of the first connecting rod is not damaged and is not easy to deform, and the service life is prolonged.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094940.8A CN113725023A (en) | 2021-09-17 | 2021-09-17 | Lower door hard interlocking mechanism of ring main unit and ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094940.8A CN113725023A (en) | 2021-09-17 | 2021-09-17 | Lower door hard interlocking mechanism of ring main unit and ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113725023A true CN113725023A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111094940.8A Pending CN113725023A (en) | 2021-09-17 | 2021-09-17 | Lower door hard interlocking mechanism of ring main unit and ring main unit |
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| CN (1) | CN113725023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119296997A (en) * | 2024-12-11 | 2025-01-10 | 深圳市宝安任达电器实业有限公司 | A lower door hard interlocking mechanism of a ring main unit and a ring main unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204967001U (en) * | 2015-08-21 | 2016-01-13 | 广东华德力电气有限公司 | Interlock mechanism of high tension switchgear |
| CN108565764A (en) * | 2018-06-19 | 2018-09-21 | 青岛特锐德电气股份有限公司 | Five anti-interlockings and insulation ring main unit |
| CN213242321U (en) * | 2020-11-16 | 2021-05-18 | 申恒电力设备有限公司 | A melting bin door and cable chamber door interlock for state net standardization combined electrical apparatus cabinet |
| CN215933428U (en) * | 2021-09-17 | 2022-03-01 | 浙江巨力电气有限公司 | Lower door hard interlocking mechanism of ring main unit and ring main unit |
-
2021
- 2021-09-17 CN CN202111094940.8A patent/CN113725023A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204967001U (en) * | 2015-08-21 | 2016-01-13 | 广东华德力电气有限公司 | Interlock mechanism of high tension switchgear |
| CN108565764A (en) * | 2018-06-19 | 2018-09-21 | 青岛特锐德电气股份有限公司 | Five anti-interlockings and insulation ring main unit |
| CN213242321U (en) * | 2020-11-16 | 2021-05-18 | 申恒电力设备有限公司 | A melting bin door and cable chamber door interlock for state net standardization combined electrical apparatus cabinet |
| CN215933428U (en) * | 2021-09-17 | 2022-03-01 | 浙江巨力电气有限公司 | Lower door hard interlocking mechanism of ring main unit and ring main unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119296997A (en) * | 2024-12-11 | 2025-01-10 | 深圳市宝安任达电器实业有限公司 | A lower door hard interlocking mechanism of a ring main unit and a ring main unit |
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