CN113036653B - Safety isolation device for switch cabinet - Google Patents
Safety isolation device for switch cabinet Download PDFInfo
- Publication number
- CN113036653B CN113036653B CN202110490368.0A CN202110490368A CN113036653B CN 113036653 B CN113036653 B CN 113036653B CN 202110490368 A CN202110490368 A CN 202110490368A CN 113036653 B CN113036653 B CN 113036653B
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- Prior art keywords
- connecting rod
- sliding block
- sealing plate
- assembly
- support
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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
- H02B11/02—Details
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a safety isolation device for a switch cabinet, which is characterized in that: the device comprises a safety valve assembly, a connecting rod sliding block assembly and a resetting assembly; the connecting rod sliding block assembly comprises a connecting rod assembly and a sliding block assembly, the connecting rod assembly is sleeved on the guide post through the sliding block assembly, the sliding block assembly is respectively connected with the upper sealing plate and the lower sealing plate, the connecting rod assembly is in contact with a push plate on a side plate of the circuit breaker, and the push plate drives the connecting rod assembly to move so as to drive the sliding block assembly to slide up and down to realize the opening of the upper sealing plate and the lower sealing plate; and a reset component is arranged on the connecting rod component, and drives the connecting rod component to move so as to drive the sliding block combination to slide relatively to realize the closing of the upper sealing plate and the lower sealing plate. The invention adopts a gear meshing mode, and drives the upper sealing plate and the lower sealing plate to synchronously open and close through the connecting rod sliding block mechanism, so that the door plate has large opening width, and the whole opening and closing process is stable and reliable. Through design connecting rod length, valve opening width, can realize through not unidimensional swing joint, the compatibility is strong.
Description
Technical Field
The invention relates to a safety isolation device for a switch cabinet, and belongs to the field of low-voltage complete switch equipment.
Background
The circuit breaker is driven by chassis car and removes between separation position, test position and hookup location, and safety isolation device can open and guarantee that the circuit breaker is normally put through with the busbar room busbar when hookup location, and other position safety isolation devices are closed, can effectively isolate dust and keep sufficient insulating distance.
At present, the safety isolation device of the low-voltage switch cabinet circuit breaker mainly adopts a mode that four safety baffles are opened and closed, the opening width is small, the travel from the test position to the connection position of the circuit breaker is small, and in the travel, the realization of the safety baffles from closed to the busbar of the accessible circuit breaker is difficult.
Disclosure of Invention
The invention aims to solve the technical problems that: the safety isolation device of the current low-voltage switch cabinet circuit breaker adopts a mode of opening and closing four safety baffles, and has the problems of small opening width and small travel from the test position to the connection position of the circuit breaker.
In order to solve the problems, the technical scheme of the invention is to provide a safety isolation device for a switch cabinet, which is characterized in that: the safety valve assembly comprises a safety valve support, an upper sealing plate, a lower sealing plate and guide posts, wherein the upper sealing plate and the lower sealing plate are arranged on the safety valve support and can slide up and down, and the guide posts are vertically arranged on two sides of the safety valve support;
the connecting rod sliding block assembly comprises a connecting rod assembly and a sliding block assembly, the connecting rod assembly is sleeved on the guide post through the sliding block assembly, the sliding block assembly is respectively connected with the upper sealing plate and the lower sealing plate, the connecting rod assembly is in contact with a push plate on a side plate of the circuit breaker, and the push plate drives the connecting rod assembly to move so as to drive the sliding block assembly to slide up and down to realize the opening of the upper sealing plate and the lower sealing plate;
and a reset component is arranged on the connecting rod component, and drives the connecting rod component to move so as to drive the sliding block combination to slide relatively to realize the closing of the upper sealing plate and the lower sealing plate.
Preferably, the connecting rod slide block assembly comprises a first connecting rod mechanism, a second connecting rod mechanism and a connecting rod support, the slide block assembly comprises a first slide block and a second slide block, the connecting rod support is fixed on a guide post, the first slide block and the second slide block are sleeved on the guide post and can slide back and forth along the guide post, the first slide block and the second slide block are respectively positioned on the upper side and the lower side of the connecting rod support, the first slide block is connected with an upper sealing plate, and the second slide block is connected with a lower sealing plate;
one end of the first connecting rod mechanism is arranged in the connecting rod support and hinged with the connecting rod support, and the other end of the first connecting rod mechanism is connected with the first sliding block; one end of the second connecting rod mechanism is arranged in the connecting rod support and hinged with the connecting rod support, the other end of the second connecting rod mechanism is connected with the second sliding block, and the first connecting rod mechanism and the second connecting rod mechanism are meshed in the connecting rod support through a gear mechanism;
the first connecting rod mechanism is in contact with a push plate on the side plate of the circuit breaker, and the push plate drives the first connecting rod mechanism to move in a direction away from the connecting rod support, so that the first sliding block and the second sliding block are driven to slide in the up-and-down direction to open the upper sealing plate and the lower sealing plate.
Preferably, the first link mechanism comprises a first link and a second link, one end of the first link is arranged in the link support, the other end of the first link is connected with the first slider through the second link, and the first link and the second link are connected in a hinged manner; the second link mechanism comprises a third link and a fourth link, one end of the third link is arranged in the link support, the other end of the third link is connected with the second slider through the fourth link, and the third link is hinged with the fourth link; the first link and the third link are engaged in the link support by a gear mechanism.
Preferably, the reset assembly is a reset spring, two groups of reset springs are provided, one group is connected with the connecting rod shaft and the connecting rod support of the first connecting rod, the other group is connected with the connecting rod shaft and the connecting rod support of the third connecting rod, and the reset spring drives the first connecting rod mechanism and the second connecting rod mechanism to move towards the direction close to the connecting rod support so as to drive the first sliding block and the second sliding block to relatively slide to close the upper sealing plate and the lower sealing plate.
Preferably, the first link and the second link form a V-shaped structure, and the third link and the fourth link form a V-shaped structure.
Preferably, the connecting rod sliding block assembly is provided with two groups, and the two groups of connecting rod sliding block assemblies are respectively arranged on the guide posts on two sides and are connected with the upper sealing plate and the lower sealing plate.
Preferably, one end of the first connecting rod in the connecting rod support is provided with a first gear, one end of the third connecting rod in the connecting rod support is provided with a second gear meshed with the first gear, and the first gear and the second gear form a gear mechanism
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts a gear meshing mode, and drives the upper sealing plate and the lower sealing plate to synchronously open and close through the connecting rod sliding block mechanism, thereby realizing the electrical isolation of the circuit breaker in the process of swinging in and out of the low-voltage switch cabinet. Compared with a common safety isolation device, the invention can realize synchronous opening and closing of the upper sealing plate and the lower sealing plate, has large opening width of the door plate, and can realize stable and reliable whole opening and closing process through the whole movable connection.
The invention can realize movable connection through different sizes by designing the length of the connecting rod and the opening width of the valve, and has strong compatibility.
Drawings
FIG. 1 is a schematic diagram of the front structure of a safety isolation device for a switch cabinet of the present invention;
fig. 2 is a schematic side view of a safety isolation device for a switchgear according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
As shown in fig. 1 and 2, the safety isolation device for a switch cabinet of the present invention comprises a safety valve assembly, a connecting rod sliding block assembly and a resetting assembly, wherein the safety valve assembly comprises a safety valve support 1, an upper sealing plate 2, a lower sealing plate 3 and guide posts 4, the upper sealing plate 2 and the lower sealing plate 3 are installed on the safety valve support 1 and can slide up and down, and the guide posts 4 are vertically installed on two sides of the safety valve support 1. The guide posts 4 are arranged in parallel with the safety valve support 1 with a certain distance therebetween.
The connecting rod sliding block assembly comprises a connecting rod assembly and a sliding block combination, wherein the connecting rod sliding block assembly is provided with two groups, and the two groups of connecting rod sliding block assemblies are respectively arranged on guide posts 4 on two sides and are connected with the upper sealing plate 2 and the lower sealing plate 3. The connecting rod assembly is sleeved on the guide post 4 through the sliding block assembly, the sliding block assembly is respectively connected with the upper sealing plate 2 and the lower sealing plate 3, the connecting rod assembly is contacted with the push plate 15 on the side plate of the circuit breaker, and the push plate 15 drives the connecting rod assembly to move so as to drive the sliding block assembly to slide up and down to realize the opening of the upper sealing plate 2 and the lower sealing plate 3.
And a reset component is arranged on the connecting rod component, and drives the connecting rod component to move so as to drive the sliding block combination to relatively slide to realize the closing of the upper sealing plate 2 and the lower sealing plate 3.
In this embodiment, the connecting rod slider assembly includes first link mechanism, second link mechanism and connecting rod support 5, and the slider combination includes first slider 6 and second slider 7, and connecting rod support 5 is fixed on guide post 4, and first slider 6 and second slider 7 cover are on guide post 4 and can slide along guide post 4 back and forth, and first slider 6 and second slider 7 are located the upper and lower both sides of connecting rod support 5 respectively, and first slider 6 is connected with last shrouding 2, and second slider 7 is connected with down shrouding 3.
The first connecting rod mechanism comprises a first connecting rod 8 and a second connecting rod 9, one end of the first connecting rod 8 is installed in the connecting rod support 5, the other end of the first connecting rod 8 is connected with the first sliding block 6 through the second connecting rod 9, and the first connecting rod 8 and the second connecting rod 9 are hinged to form a V-shaped structure. The second link mechanism comprises a third link 10 and a fourth link 11, one end of the third link 10 is installed in the link support 5, the other end of the third link 10 is connected with the second slider 7 through the fourth link 11, and the third link 10 and the fourth link 11 are hinged to form a V-shaped structure.
One end of the first connecting rod 8 positioned in the connecting rod support 5 is provided with a first gear 13, one end of the third connecting rod 10 positioned in the connecting rod support 5 is provided with a second gear 14 meshed with the first gear 13, and the first gear 13 and the second gear 14 form a gear mechanism. The first link 8 and the third link 10 are engaged by a gear mechanism in the link support 5.
The connecting rod shaft 12 of the first connecting rod 8 is contacted with the push plate 15 on the side plate of the circuit breaker, and the push plate 15 drives the first connecting rod mechanism to move in a direction away from the connecting rod support 5 so as to drive the first sliding block 6 and the second sliding block 7 to slide in an up-down direction to open the upper sealing plate 2 and the lower sealing plate 3.
The reset component is reset springs, and the reset springs are provided with two groups, one group is connected with the connecting rod shaft 12 of the first connecting rod 8 and the connecting rod support 5, and the other group is connected with the connecting rod shaft 12 of the third connecting rod 10 and the connecting rod support 5. The first connecting rod mechanism and the second connecting rod mechanism are driven to move towards the direction close to the connecting rod support 5 through the reset spring, and then the first sliding block 6 and the second sliding block 7 are driven to relatively slide to close the upper sealing plate 2 and the lower sealing plate 3.
In the pushing process of the circuit breaker along with the chassis truck floor, a push plate 15 arranged on a side plate of the circuit breaker drives a connecting rod shaft of a first connecting rod 8 to move along the inclined plane of the push plate 15, the first connecting rod 8 of the first connecting rod mechanism is driven to rotate clockwise by a connecting rod support 5 fixed shaft, a second connecting rod 9 is driven to move, a first sliding block 6 hinged with the second connecting rod 9 moves upwards along a guide post 4, and an upper sealing plate 2 is driven to move upwards. Meanwhile, a first gear 13 of the first connecting rod 8 is meshed with a second gear 14 of the third connecting rod 10 to drive the second connecting rod mechanism to move, and then the second sliding block 7 is driven to slide downwards along the guide post 4 to drive the lower sealing plate 3 to open, the safety valve is opened, and the movable connection 16 passes through. In the process that the circuit breaker swings out of the switch cabinet along with the chassis, the reset spring contracts to drive the first connecting rod 8 and the third connecting rod 10 to move, and the first sliding block 6, the second sliding block 7, the upper sealing plate 2 and the lower sealing plate 3 are driven to move relatively, so that the safety valve is closed.
Claims (4)
1. The utility model provides a safety isolation device for cubical switchboard which characterized in that: the automatic sealing device comprises a safety valve assembly, a connecting rod sliding block assembly and a resetting assembly, wherein the safety valve assembly comprises a safety valve support (1), an upper sealing plate (2), a lower sealing plate (3) and guide posts (4), the upper sealing plate (2) and the lower sealing plate (3) are arranged on the safety valve support (1) and can slide up and down, and the guide posts (4) are vertically arranged on two sides of the safety valve support (1);
the connecting rod sliding block assembly comprises a connecting rod assembly and a sliding block assembly, the connecting rod assembly is sleeved on the guide column (4) through the sliding block assembly, the sliding block assembly is respectively connected with the upper sealing plate (2) and the lower sealing plate (3), the connecting rod assembly is contacted with a push plate (15) on a side plate of the circuit breaker, and the push plate (15) drives the connecting rod assembly to move so as to drive the sliding block assembly to slide up and down to realize the opening of the upper sealing plate (2) and the lower sealing plate (3);
the connecting rod assembly is provided with a reset assembly, and the reset assembly drives the connecting rod assembly to move so as to drive the sliding block assembly to relatively slide to realize the closing of the upper sealing plate (2) and the lower sealing plate (3);
the connecting rod sliding block assembly comprises a first connecting rod mechanism, a second connecting rod mechanism and a connecting rod support (5), the sliding block assembly comprises a first sliding block (6) and a second sliding block (7), the connecting rod support (5) is fixed on a guide post (4), the first sliding block (6) and the second sliding block (7) are sleeved on the guide post (4) and can slide back and forth along the guide post (4), the first sliding block (6) and the second sliding block (7) are respectively positioned on the upper side and the lower side of the connecting rod support (5), the first sliding block (6) is connected with an upper sealing plate (2), and the second sliding block (7) is connected with a lower sealing plate (3);
one end of the first connecting rod mechanism is arranged in the connecting rod support (5) and hinged with the connecting rod support (5), and the other end of the first connecting rod mechanism is connected with the first sliding block (6); one end of the second connecting rod mechanism is arranged in the connecting rod support (5) and hinged with the connecting rod support (5), the other end of the second connecting rod mechanism is connected with the second sliding block (7), and the first connecting rod mechanism and the second connecting rod mechanism are meshed in the connecting rod support (5) through a gear mechanism;
the first connecting rod mechanism or the second connecting rod mechanism is contacted with a push plate (15) on the side plate of the circuit breaker, the push plate (15) drives the first connecting rod mechanism to move in a direction away from the connecting rod support (5) so as to drive the first sliding block (6) and the second sliding block (7) to slide in an up-down direction to open the upper sealing plate (2) and the lower sealing plate (3);
the first connecting rod mechanism comprises a first connecting rod (8) and a second connecting rod (9), one end of the first connecting rod (8) is arranged in the connecting rod support (5), the other end of the first connecting rod is connected with the first sliding block (6) through the second connecting rod (9), and the first connecting rod (8) is hinged with the second connecting rod (9); the second link mechanism comprises a third link (10) and a fourth link (11), one end of the third link (10) is arranged in the link support (5), the other end of the third link is connected with the second slider (7) through the fourth link (11), and the third link (10) is hinged with the fourth link (11); the first connecting rod (8) and the third connecting rod (10) are meshed in the connecting rod support (5) through a gear mechanism;
one end of the first connecting rod (8) positioned in the connecting rod support (5) is provided with a first gear (13), one end of the third connecting rod (10) positioned in the connecting rod support (5) is provided with a second gear (14) meshed with the first gear (13), and the first gear (13) and the second gear (14) form a gear mechanism;
in the pushing process of the circuit breaker along with the chassis truck floor, a push plate (15) arranged on a side plate of the circuit breaker drives a connecting rod shaft of a first connecting rod (8) to move along the inclined plane of the push plate (15), the first connecting rod (8) of the first connecting rod mechanism is driven to rotate clockwise by a connecting rod support (5) fixed shaft, a second connecting rod (9) is driven to move, a first sliding block (6) hinged with the second connecting rod (9) moves upwards along a guide column (4), and an upper sealing plate (2) is driven to move upwards; meanwhile, a first gear (13) of the first connecting rod (8) is meshed with a second gear (14) of the third connecting rod (10), the second connecting rod mechanism is driven to move, the second sliding block (7) is driven to slide downwards along the guide column (4), the lower sealing plate (3) is driven to be opened, and the safety valve is driven to be opened.
2. A safety isolation device for a switchgear as claimed in claim 1, wherein: the reset assembly is a reset spring, two groups of reset springs are arranged, one group is connected with the connecting rod shaft (12) of the first connecting rod (8) and the connecting rod support (5), the other group is connected with the connecting rod shaft (12) of the third connecting rod (10) and the connecting rod support (5), and the reset spring drives the first connecting rod mechanism and the second connecting rod mechanism to move towards the direction close to the connecting rod support (5) so as to drive the first sliding block (6) and the second sliding block (7) to relatively slide to close the upper sealing plate (2) and the lower sealing plate (3).
3. A safety isolation device for a switchgear as claimed in claim 1, wherein: the first connecting rod (8) and the second connecting rod (9) form a V-shaped structure, and the third connecting rod (10) and the fourth connecting rod (11) form a V-shaped structure.
4. A safety isolation device for a switchgear as claimed in claim 1, wherein: the connecting rod sliding block assembly is provided with two groups, and the two groups of connecting rod sliding block assemblies are respectively arranged on guide posts (4) on two sides and are connected with the upper sealing plate (2) and the lower sealing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110490368.0A CN113036653B (en) | 2021-05-06 | 2021-05-06 | Safety isolation device for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110490368.0A CN113036653B (en) | 2021-05-06 | 2021-05-06 | Safety isolation device for switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113036653A CN113036653A (en) | 2021-06-25 |
| CN113036653B true CN113036653B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110490368.0A Active CN113036653B (en) | 2021-05-06 | 2021-05-06 | Safety isolation device for switch cabinet |
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| Country | Link |
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| CN (1) | CN113036653B (en) |
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| JP2004153953A (en) * | 2002-10-31 | 2004-05-27 | Mitsubishi Electric Corp | Gas-insulated switchgear |
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| Publication number | Publication date |
|---|---|
| CN113036653A (en) | 2021-06-25 |
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