CN115275848A - Compact valve link mechanism used in high-voltage cabinet - Google Patents
Compact valve link mechanism used in high-voltage cabinet Download PDFInfo
- Publication number
- CN115275848A CN115275848A CN202210894931.5A CN202210894931A CN115275848A CN 115275848 A CN115275848 A CN 115275848A CN 202210894931 A CN202210894931 A CN 202210894931A CN 115275848 A CN115275848 A CN 115275848A
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- Prior art keywords
- link
- rotatably connected
- connecting rod
- high voltage
- compact
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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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- 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
- H02B11/24—Shutters or guards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a compact valve link mechanism used in a high-voltage cabinet, which comprises: the first connecting rod is connected with the first movable door plate; the third connecting rod is rotatably connected with the first fixed pivot, the fourth connecting rod is rotatably connected with the second fixed pivot, and the seventh connecting rod is rotatably connected with the third fixed pivot. The invention has the characteristics of short front and back stroke, high response speed, high mechanical stability and large up-and-down moving stroke of the valve, and is simple to maintain.
Description
Technical Field
The invention relates to the field of valve mechanisms, in particular to a compact valve link mechanism used in a high-voltage cabinet.
Background
The indoor valve mechanism of the high-voltage cabinet breaker is mainly used for meeting the requirement of five prevention, and the valve is opened when the breaker moves into the cabinet, so that a moving contact arm of the breaker can be inserted into a static contact box of the cabinet body. When the circuit breaker is moved out of the cabinet, the movable door is closed to cover the static contact box, so that the circuit breaker is prevented from entering an electrified part by mistake.
At present, because of the mechanical stability and low failure rate of the link mechanism, the valve mechanism is usually a three-link mechanism, and the valve can move up and down in a split manner through a long link arm, but the valve mechanism cannot be applied when the valve mechanism is used in a state that the front-back distance is short, the up-down moving stroke of the valve is large, and the space in a cabinet is limited.
Disclosure of Invention
In order to solve or partially solve the problems in the related art, the invention provides a compact valve link mechanism used in a high-voltage cabinet, which has the characteristics of short front-back stroke, high response speed, high mechanical stability and large up-down stroke of a valve, and is simple to maintain.
The invention discloses a compact valve link mechanism used in a high-voltage cabinet, which comprises:
the second shutter plate is used for covering an electrified part;
the first end of the second connecting rod is rotatably connected with the second valve plate;
a fourth link, a first end of which is rotatably connected with a second end of the second link;
a sixth link, a first end of which is rotatably connected with the fourth link;
a seventh link rotatably connected to a second end of the sixth link;
the fourth connecting rod is rotatably connected with the second fixed pivot, and the seventh connecting rod is rotatably connected with the third fixed pivot.
Optionally, the second link is in a bayonet connection with the second flap panel.
Optionally, the second fixed fulcrum is located between a junction of the fourth link and the sixth link and the second end of the fourth link.
Optionally, the mechanism further comprises:
the first shutter plate is used for covering the other electrified part;
the first end of the first connecting rod is rotatably connected with the first valve plate;
a third link having a first end rotatably connected to the second end of the first link;
a fifth connecting rod, wherein the first end of the fifth connecting rod is rotatably connected with the third connecting rod, and the second end of the fifth connecting rod is connected with the second end of the fourth connecting rod;
wherein, the third connecting rod is rotatably connected with the first fixed fulcrum.
Optionally, the mechanism further comprises:
and the elastic component is arranged between the third connecting rod and the fourth connecting rod.
Optionally, the resilient component is a spring.
Optionally, the first link is in a bayonet connection with the first flap panel.
Optionally, the second end of the third link is rotatably connected to the first fixed fulcrum.
Optionally, the seventh link is a triangular link, a first end of the seventh link is connected to the sixth link, and a second end of the seventh link is rotatably and fixedly connected to the third fixed pivot.
Optionally, the third end of the seventh connecting rod is used as an external force bearing point.
The technical scheme provided by the invention can have the following beneficial effects:
the invention provides a compact valve link mechanism used in a high-voltage cabinet, which has the characteristics of short front-back stroke, high response speed, high mechanical stability and large up-down stroke of a valve, and is simple to maintain.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention patent, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a compact shutter link mechanism used in a high-voltage cabinet according to an embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that, although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The following describes the technical solutions of the embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides a compact shutter link mechanism for use in a high voltage cabinet, the mechanism including:
a second shutter plate 102 for covering an electrified part;
a second link 202 having a first end rotatably connected to the second shutter plate 102;
a fourth link 204 having a first end rotatably connected to a second end of the second link 202;
a sixth link 206 having a first end rotatably connected to the fourth link 204;
a seventh link 207 rotatably connected to a second end of the sixth link 206;
the fourth link 204 is rotatably connected to the second fixed pivot 302, and the seventh link 207 is rotatably connected to the third fixed pivot 303.
In this embodiment, the second link 202 is connected to the second flap 102 by a latch.
In this embodiment, the second fixed fulcrum 302 is located between the connection point of the fourth link 204 and the sixth link 206 and the second end of the fourth link 204.
In this embodiment, the mechanism further includes:
a first shutter plate 101 for covering another charged portion;
a first link 201, a first end of which is rotatably connected to the first shutter plate 101;
a third link 203 having a first end rotatably connected to a second end of the first link 201;
a fifth link 205 having a first end rotatably connected to the third link 203 and a second end connected to a second end of the fourth link 204;
wherein the third link 203 is rotatably connected with the first fixed fulcrum 301.
In this embodiment, the mechanism further includes:
and an elastic member 400 installed between the third link 203 and the fourth link 204.
In this embodiment, the elastic member 400 is a spring.
In this embodiment, the first link 201 is connected to the first shutter plate 101 by a latch.
In this embodiment, the second end of the third link 203 is rotatably connected to the first fixed fulcrum 301.
In this embodiment, the seventh link 207 is a triangular link, a first end of which is connected to the sixth link 206, and a second end of which is rotatably and fixedly connected to the third fixed pivot 303.
In this embodiment, the third end of the seventh link 207 serves as an external force-bearing point.
In order to understand the compact shutter link mechanism in the high-voltage cabinet in the present embodiment, the following will describe the operation of the compact shutter link mechanism in the high-voltage cabinet in detail:
when an external stress point is stressed and excited, the seventh connecting rod 207 rotates around a third fixed fulcrum 303, the sixth connecting rod 206 moves downwards, the fourth connecting rod 204 and the second connecting rod 202 move downwards, the second valve plate 102 opens downwards, meanwhile, the fourth connecting rod 204 rotates around a second fixed fulcrum 302, the fifth connecting rod 205, the third connecting rod 203 and the first connecting rod 201 move upwards, rotation is generated under the first fixed fulcrum 301, the first valve plate 101 opens upwards, and the length of the seventh connecting rod 207 is designed to ensure the movement stroke of the upper valve plate and the lower valve plate;
when the external force point is removed from the excitation, the spring connecting the third link 203 and the fourth link 204 is restored to the initial position as shown in fig. 1 against the resistance of the link mechanism.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A compact shutter linkage mechanism for use in a high voltage cabinet, the mechanism comprising:
the second shutter plate is used for covering an electrified part;
the first end of the second connecting rod is rotatably connected with the second valve plate;
a fourth link, a first end of which is rotatably connected with a second end of the second link;
a sixth link, a first end of which is rotatably connected with the fourth link;
a seventh link rotatably connected to a second end of the sixth link;
the fourth connecting rod is rotatably connected with the second fixed pivot, and the seventh connecting rod is rotatably connected with the third fixed pivot.
2. The compact shutter linkage mechanism for use in high voltage cabinets of claim 1, wherein the second link is pinned to the second shutter plate.
3. The compact shutter linkage mechanism for use within a high voltage cabinet according to claim 1, wherein the second fixed fulcrum is located between a junction of the fourth link and the sixth link and the second end of the fourth link.
4. A compact shutter linkage mechanism for use in a high voltage cabinet according to claim 1, wherein said mechanism further comprises:
the first shutter plate is used for covering the other electrified part;
the first end of the first connecting rod is rotatably connected with the first valve plate;
a third link having a first end rotatably connected to the second end of the first link;
a fifth link, a first end of which is rotatably connected with the third link and a second end of which is connected with a second end of the fourth link;
wherein, the third connecting rod is rotatably connected with the first fixed fulcrum.
5. A compact shutter linkage mechanism for use in high voltage cabinets of claim 4, wherein the mechanism further comprises:
and the elastic component is arranged between the third connecting rod and the fourth connecting rod.
6. The compact shutter linkage mechanism for use in high voltage cabinets of claim 5, wherein the resilient member is a spring.
7. A compact shutter linkage mechanism for use in high voltage cabinets according to claim 4, wherein the first link is bolted to the first shutter plate.
8. The compact shutter linkage mechanism for use in high voltage cabinets of claim 4, wherein the second end of the third link is rotatably connected to the first fixed pivot point.
9. The compact shutter linkage assembly for use in high voltage cabinets of claim 1, wherein the seventh link is a triangular link having a first end connected to the sixth link and a second end rotatably fixed to the third fixed pivot point.
10. The compact shutter linkage mechanism for use in high voltage cabinets of claim 1, wherein the third end of the seventh link serves as an external force point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210894931.5A CN115275848A (en) | 2022-07-27 | 2022-07-27 | Compact valve link mechanism used in high-voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210894931.5A CN115275848A (en) | 2022-07-27 | 2022-07-27 | Compact valve link mechanism used in high-voltage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115275848A true CN115275848A (en) | 2022-11-01 |
Family
ID=83772027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210894931.5A Pending CN115275848A (en) | 2022-07-27 | 2022-07-27 | Compact valve link mechanism used in high-voltage cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115275848A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117394189A (en) * | 2023-10-20 | 2024-01-12 | 江苏德纪特电气有限公司 | Switch cabinet valve device and switch cabinet thereof |
-
2022
- 2022-07-27 CN CN202210894931.5A patent/CN115275848A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117394189A (en) * | 2023-10-20 | 2024-01-12 | 江苏德纪特电气有限公司 | Switch cabinet valve device and switch cabinet thereof |
| CN117394189B (en) * | 2023-10-20 | 2024-03-22 | 江苏德纪特电气有限公司 | Switch cabinet valve device and switch cabinet thereof |
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