CN212412604U - Handcart mechanical interlocking device of high-voltage handcart type switch cabinet - Google Patents
Handcart mechanical interlocking device of high-voltage handcart type switch cabinet Download PDFInfo
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- CN212412604U CN212412604U CN202021190163.8U CN202021190163U CN212412604U CN 212412604 U CN212412604 U CN 212412604U CN 202021190163 U CN202021190163 U CN 202021190163U CN 212412604 U CN212412604 U CN 212412604U
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Abstract
The utility model discloses a high-pressure handcart-type cubical switchboard handcart mechanical interlocking device for the locking of circuit breaker handcart. The interlocking mechanism is arranged at the bottom of the moving end of the chassis shaking mechanism of the handcart and comprises an interlocking mounting plate, an interlocking plate, a mechanical lock, an interlocking baffle and a torsional spring, wherein the interlocking plate, the mechanical lock, the interlocking baffle and the torsional spring are all arranged on the interlocking mounting plate; the mechanical lock pushes the interlocking plate to move up and down; the interlocking plate can extend into or withdraw from a shaking hole of the handcart chassis shaking mechanism when moving up and down; the interlocking baffle is triggered to rotate by an adjusting bolt arranged on the supporting gear and resets under the action of a torsion spring, and the interlocking baffle is limited to move up and down when rotating to a certain position. The interlocking plate is restricted from moving up and down by unlocking or locking the mechanical lock, thereby restricting the insertion operation of the handle. The device has simple structure, flexible combination, safety and reliability, and is suitable for mechanical interlocking of high-voltage handcart type switch cabinet handcarts.
Description
Technical Field
The utility model relates to a high tension switchgear specifically is about a high-pressure handcart-type cubical switchboard handcart mechanical interlock.
Background
The high-voltage switch cabinet is equipment for opening, closing, controlling and protecting power utilization in the process of power generation, power transmission, power distribution and electric energy conversion of a power system, and is suitable for places such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textiles, industrial and mining enterprises, residential districts, hospitals, schools and the like. When the high-voltage switch cabinet is used, the moving contact and the fixed contact of the vacuum circuit breaker are connected to realize the communication between the circuit breaker and the power supply inlet and outlet wires.
At present, a handcart type propelling mechanism is widely applied to a switch cabinet, and when a circuit breaker is propelled to a working position from a test position or retreats from the working position to the test position, the movement of the mechanism is limited by additionally arranging a mechanical interlocking device. However, the existing interlocking mechanism can only ensure that the circuit breaker is locked at a working position or a test position, and when the circuit breaker needs to be disconnected, the circuit breaker cannot be ensured to be locked at the test position, so that the safety is extremely poor. In addition, the interlocking between two circuit breaker handcart and the interlocking between the circuit breaker handcart and the transformer chamber door are not realized by using one set of interlocking device at present.
Disclosure of Invention
The utility model discloses exerting oneself in solving the not enough that above-mentioned prior art exists, providing a high-pressure handcart formula cubical switchboard handcart mechanical interlocking device, when the device can guarantee that circuit breaker room door closes, the handcart is locked at the experimental position to can realize the interlocking between two circuit breaker handcart through a key, improve the security of cubical switchboard.
The utility model provides a technical scheme that above technical problem adopted as follows: a handcart mechanical interlocking device of a high-voltage handcart type switch cabinet comprises a supporting gear, a first locking gear and a second locking gear, wherein the supporting gear is arranged at the bottom of the fixed end of a chassis shaking mechanism of a handcart; the interlocking mechanism is arranged at the bottom of the moving end of the chassis shaking mechanism of the handcart;
the interlocking mechanism comprises an interlocking mounting plate, an interlocking plate, a mechanical lock, an interlocking baffle and a torsion spring, wherein the interlocking mounting plate is fixed at the bottom of the moving end of the handcart chassis shaking-in mechanism, and the interlocking plate, the mechanical lock, the interlocking baffle and the torsion spring are mounted on the interlocking mounting plate;
the mechanical lock pushes the interlocking plate to move up and down;
the interlocking plate can extend into or withdraw from a shaking hole of the handcart chassis shaking mechanism when moving up and down;
the interlocking baffle is triggered to rotate by an adjusting bolt arranged on the supporting gear and resets under the action of the torsional spring, and the interlocking baffle limits the interlocking plate to move up and down when rotating to a certain position.
Further, the supporting gear is installed between the left side plate and the right side plate, and the left side plate and the right side plate are installed at the bottom of the fixed end of the handcart chassis shaking-in mechanism.
Further, the interlocking mechanism moves along with the moving end of the handcart chassis shaking-in mechanism and moves close to or away from the supporting gear.
Furthermore, a mechanical lock fixing mounting hole is formed in the interlocking mounting plate and used for mounting the mechanical lock; the interlocking plate moving installation hole is formed in the interlocking installation plate and used for installing the interlocking plate, and the interlocking plate can move in the interlocking plate moving installation hole. The interlocking baffle plate and the torsion spring mounting table are arranged on the interlocking mounting plate, the interlocking baffle plate and the torsion spring are sleeved on the mounting table, and the end part of the torsion spring is connected to the interlocking baffle plate.
Furthermore, a clamping groove is formed in the interlocking mounting plate, a boss is arranged on the interlocking plate, the boss is clamped in the clamping groove, and the hole position of the clamping groove is larger than that of the boss; when the interlocking baffle rotates to a certain position, the interlocking baffle can extend into the clamping groove and is blocked above the boss.
Furthermore, the interlocking plate is provided with two extending forks at the top, and when the interlocking plate moves upwards, the two extending forks extend into the shaking hole of the handcart chassis shaking mechanism.
The device has simple structure, flexible combination, safety and reliability, and is suitable for mechanical interlocking of high-voltage handcart type switch cabinet handcarts. The main characteristics of the device are as follows:
1. the device can be used for a handcart type high-voltage switch cabinet, and locks a circuit breaker handcart at a test position when a door of the circuit breaker chamber is closed, so that the vacuum circuit breaker handcart cannot be moved to a working position.
2. The device can be used for interlocking between two circuit breaker handcarts, prevents the two circuit breakers from being switched on simultaneously, and realizes a dual-power switching function, namely two locks and one key.
3. The device can be used for interlocking between three circuit breaker handcarts, prevents that three circuit breakers from closing simultaneously, sets up the interlocking between two circuit breakers, and another circuit breaker is independently locked, ensures that only two circuit breakers can close, and three locks two keys promptly.
4. The device can be used for interlocking between a circuit breaker handcart and a transformer chamber door, so that the transformer chamber door is prevented from being opened in an electrified manner, and a program lock function is realized.
Drawings
FIG. 1 is a front view of the present apparatus;
FIG. 2 is a side view of the apparatus with a circuit breaker trolley in a testing position;
FIG. 3 is a side view of the apparatus with the circuit breaker trolley in an operating position;
FIG. 4a is a front view of the interlock mechanism of the present apparatus;
FIG. 4b is a side cross-sectional view of the interlock mechanism of the present apparatus;
FIG. 4c is a top view of the interlock mechanism of the present apparatus;
FIG. 5a is a front view of the interlock mounting plate;
FIG. 5b is a cross-sectional view A-A of FIG. 5 a;
FIG. 6a is a front view of the interlock plate;
fig. 6b is a cross-sectional view of the interlock plate side.
Detailed Description
The invention is described in detail below with reference to the drawings, which form a part hereof, and with reference to embodiments of the invention. However, it should be understood by those skilled in the art that the following examples are not intended to limit the technical solutions of the present invention, and all equivalent changes or modifications made in the spirit of the technical solutions of the present invention should be considered as falling within the protection scope of the present invention.
As shown in fig. 1-3, the device is mounted by relying on a handcart chassis shaking-in mechanism of a circuit breaker, and comprises three parts, namely an interlocking mechanism 3, a supporting gear 4, a left side plate 5 and a right side plate 5, wherein the left side plate 5 and the right side plate 5 are two plates and are mounted at the bottom of the fixed end of the handcart chassis shaking-in mechanism 1; the supporting gear 4 is supported and arranged between the two side plates by taking the left side plate 5 and the right side plate 5 as supports; the interlocking mechanism 3 is arranged at the bottom of the moving end of the handcart chassis shaking-in mechanism 1, is positioned in front of the supporting rod 4 and moves along with the moving end. The handle 2 is inserted into a shaking hole of the handcart chassis shaking mechanism 1 and pushes the moving end to walk.
As shown in fig. 4a, 4b and 4c, the interlocking mechanism 3 has the following structure: comprises an interlocking mounting plate 6 which is hoisted at the bottom of the moving end of a chassis shaking mechanism 1 of the handcart; the interlocking plate 7 is arranged on the interlocking mounting plate 6 and can move up and down on the interlocking mounting plate 6; the mechanical lock 8 is arranged on the interlocking mounting plate 6 and can push the interlocking plate 7 to move up and down; the interlocking baffle 9 and the torsion spring 10 are arranged on the interlocking mounting plate 6, the interlocking baffle 9 is connected to the torsion spring 10, and the interlocking baffle can be rotated and shifted back and forth under the action of the torsion spring 10; the interlocking mechanism is provided with an adjusting bolt 11 which is arranged on the supporting baffle 4 and forms a rotary touch to the interlocking baffle 9.
Specifically, the interlock mounting plate 6, as shown in fig. 5a and 5b, is provided with a mechanical lock fixing mounting hole 61 and an interlock plate moving mounting hole 62 on the interlock mounting plate 6; a mechanical lock fixing mounting hole 61 which is a fixing bolt hole for mounting the mechanical lock 8; interlocking plate moving mounting hole 62, which is an adjustable bolt hole, for mounting interlocking plate 7 so that interlocking plate 7 can move up and down in the interlocking plate moving mounting hole by an external force.
The interlocking baffle plate 9 and the torsion spring 10 mounting platform 63 are further arranged on the interlocking mounting plate 6, the interlocking baffle plate 9 and the torsion spring 10 are sleeved on the mounting platform, the end part of the torsion spring is connected to the interlocking baffle plate 9, the interlocking baffle plate 9 can rotate under the action of external force, and the torsion spring 10 can return under the action of external force.
A clamping groove 64 is further formed in the interlocking mounting plate 6, a boss 71 (see fig. 6b) is arranged on the interlocking plate 7, the boss 71 is clamped in the clamping groove 64 to play a role in stabilizing the interlocking plate 7, and the hole position of the clamping groove 64 is larger than that of the boss 71, so that the boss 71 can move up and down; and the interlocking baffle 9 can extend into the clamping groove 64 when rotating to a certain position and block the boss 71 to prevent the boss 71 (namely the interlocking plate 7) from moving up and down, so that the position is limited.
Specifically, interlocking plate 7 is connected to interlocking plate moving attachment hole 62 by a bolt as shown in fig. 6a and 6 b. In addition to having the above-mentioned bosses 71, interlocking plate 7 further has two protruding prongs 72 on the top for protruding into the swing hole of the hand truck chassis swing mechanism 1 to block the insertion of the handle 2 when interlocking plate 7 goes upward.
The working principle of the device is as follows:
fig. 2 shows the circuit breaker trolley in the test position and fig. 3 shows the circuit breaker trolley in the operating position.
(1) When the circuit breaker handcart is in a working position (see fig. 3), the interlocking baffle 9 is not touched by the adjusting bolt 11 on the supporting gear 4, and under the action of the torsion spring 10, the interlocking baffle 9 blocks the boss on the interlocking plate 7, so that the interlocking plate 7 cannot move upwards, the handle 2 can be inserted into the shake-in hole, the mechanical lock 8 is blocked and cannot rotate, and the key cannot be pulled out.
(2) When the circuit breaker handcart moves from the working position to the test position (changing to fig. 2 from fig. 3), when the interlocking baffle 9 moves forwards to touch the adjustable bolt 11 on the supporting rail 4, the interlocking baffle 9 is rotated to avoid opening the boss on the interlocking plate 7, so that the interlocking plate 7 can move upwards, the handle 2 exits from the shaking hole, the mechanical lock 8 is inserted into the key and rotates, the mechanical lock 8 moves upwards, the interlocking plate 7 is jacked up to move upwards, then the key can be pulled out, two extending forks on the interlocking plate 7 are inserted into the shaking mechanism, and the handle 2 cannot be inserted into the shaking hole again at the moment, so that the circuit breaker handcart is ensured to be in the test position.
(3) When the circuit breaker handcart is at a test position (see fig. 2), a key is inserted into the mechanical lock 8 and rotates, the mechanical lock 8 moves downwards to drive the interlocking plate 7 to move downwards, the handle 2 is inserted into the shaking hole to push the handcart in, the adjustable bolt 11 arranged on the support gear 4 is driven to gradually leave the interlocking baffle 9, and under the action of the torsion spring 10, the interlocking baffle 9 blocks the boss on the interlocking plate 7 again to prevent the interlocking plate 7 from moving upwards, so that the key of the mechanical lock 8 cannot rotate and cannot be pulled out, and the circuit breaker handcart is ensured to be at the test position.
Therefore, the device can ensure that the circuit breaker handcart is locked at a test position, so that the circuit breaker handcart cannot be moved to a working position. And meanwhile, the design can be extended, and when two circuit breaker trolleys are arranged side by side, a linkage mechanism can be constructed through the interlocking plate 7, so that one key can control the two circuit breakers. The interlocking device can also be used for interlocking between a circuit breaker handcart and a transformer chamber door, so that the transformer chamber door is prevented from being opened in a charged manner, and a program lock function is realized.
Claims (6)
1. The utility model provides a high pressure handcart-type cubical switchboard handcart mechanical interlock which characterized in that:
comprises a supporting baffle which is arranged at the bottom of the fixed end of the chassis shaking mechanism of the handcart;
the interlocking mechanism is arranged at the bottom of the moving end of the chassis shaking mechanism of the handcart;
the interlocking mechanism comprises an interlocking mounting plate, an interlocking plate, a mechanical lock, an interlocking baffle and a torsion spring, wherein the interlocking mounting plate is fixed at the bottom of the moving end of the handcart chassis shaking-in mechanism, and the interlocking plate, the mechanical lock, the interlocking baffle and the torsion spring are mounted on the interlocking mounting plate;
the mechanical lock pushes the interlocking plate to move up and down;
the interlocking plate can extend into or withdraw from a shaking hole of the handcart chassis shaking mechanism when moving up and down;
the interlocking baffle is triggered to rotate by an adjusting bolt arranged on the supporting gear and resets under the action of the torsional spring, and the interlocking baffle limits the interlocking plate to move up and down when rotating to a certain position.
2. The high-voltage handcart type switch cabinet handcart mechanical interlocking device according to claim 1, characterized in that: the supporting gear is arranged between the left side plate and the right side plate, and the left side plate and the right side plate are arranged at the bottom of the fixed end of the chassis shaking mechanism of the handcart.
3. The high-voltage handcart type switch cabinet handcart mechanical interlocking device according to claim 1, characterized in that: the interlocking mechanism moves along with the moving end of the handcart chassis shaking-in mechanism and is close to or far away from the supporting gear during moving.
4. The high-voltage handcart type switch cabinet handcart mechanical interlocking device according to claim 1, characterized in that:
the interlocking mounting plate is provided with a mechanical lock fixing mounting hole for mounting the mechanical lock;
the interlocking plate moving installation hole is formed in the interlocking installation plate and used for installing the interlocking plate, and the interlocking plate can move in the interlocking plate moving installation hole;
the interlocking baffle plate and the torsion spring mounting table are arranged on the interlocking mounting plate, the interlocking baffle plate and the torsion spring are sleeved on the mounting table, and the end part of the torsion spring is connected to the interlocking baffle plate.
5. The high-voltage handcart type switch cabinet handcart mechanical interlocking device according to claim 1 or 4, characterized in that: the interlocking mounting plate is provided with a clamping groove, the interlocking plate is provided with a boss, the boss is clamped in the clamping groove, and the hole position of the clamping groove is larger than that of the boss;
when the interlocking baffle rotates to a certain position, the interlocking baffle can extend into the clamping groove and is blocked above the boss.
6. The high-voltage handcart type switch cabinet handcart mechanical interlocking device according to claim 1, characterized in that: and when the interlocking plate moves upwards, the two extending forks extend into the shaking hole of the handcart chassis shaking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190163.8U CN212412604U (en) | 2020-06-21 | 2020-06-21 | Handcart mechanical interlocking device of high-voltage handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190163.8U CN212412604U (en) | 2020-06-21 | 2020-06-21 | Handcart mechanical interlocking device of high-voltage handcart type switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN212412604U true CN212412604U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021190163.8U Active CN212412604U (en) | 2020-06-21 | 2020-06-21 | Handcart mechanical interlocking device of high-voltage handcart type switch cabinet |
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| CN (1) | CN212412604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363857A (en) * | 2021-07-07 | 2021-09-07 | Abb瑞士股份有限公司 | Safety device for a chassis of a switchgear cabinet, related chassis and switchgear cabinet |
-
2020
- 2020-06-21 CN CN202021190163.8U patent/CN212412604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363857A (en) * | 2021-07-07 | 2021-09-07 | Abb瑞士股份有限公司 | Safety device for a chassis of a switchgear cabinet, related chassis and switchgear cabinet |
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