CN209929172U

CN209929172U - Three-in-two lock interlocking mechanism

Info

Publication number: CN209929172U
Application number: CN201920740725.2U
Authority: CN
Inventors: 张玉得
Original assignee: Jiangsu Weituo Rio Electric Power Engineering Technology Co Ltd
Current assignee: Jiangsu Weituo Rio Electric Power Engineering Technology Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-01-10
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a three-in-two interlocking mechanism, which is characterized in that the interlocking mechanism comprises an interlocking plate, an interlocking support, an operating mechanism mounting plate and a mechanical lock, wherein the interlocking plate is arranged at the upper end of the operating mechanism mounting plate; the utility model discloses simple process, low cost, simple to operate, the operation is reliable.

Description

Three-in-two lock interlocking mechanism

Technical Field

The utility model relates to a three close two interlock mechanisms belongs to cubical switchboard technical field.

Background

Because the Unisec looped network switch cabinet is the latest ABB product, at present, no three-in-two lock interlocking mechanism exists in China, the requirement on power supply in part of China cannot be met, the safety of a power supply system cannot be guaranteed, a three-in-two lock interlocking mechanism is just developed abroad, and the foreign interlocking mechanism is realized by adopting a specially-made mechanical lock and a plastic part to shield an operation shaft hole, so that the process is complex, the cost is high, and the delivery period is long, and the domestic requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a three closes two lock interlock mechanisms.

The three-in-two locking interlocking mechanism is characterized by comprising an interlocking plate, an interlocking support, an operating mechanism mounting plate and a mechanical lock, wherein the interlocking plate is mounted at the upper end of the operating mechanism mounting plate;

and when the interlocking support moves upwards, the top part extrudes an electric auxiliary contact to disable electric switching-on.

Preferably, the operating shaft is provided with a limiting block, and when the operating shaft rotates, the limiting block rotates to the position below the operating shaft.

Preferably, the limiting block is connected with the operating shaft through a screw.

Preferably, the interlocking support is provided with a guiding fixing copper ring.

Preferably, the lock bracket is connected with the operating mechanism mounting plate through screws.

Preferably, the mechanical lock and the lock hole on the operating shaft are both provided with corresponding keys.

Compared with the prior art, the utility model discloses the beneficial effect who reaches: this product adopts the preparation of aluminizing zinc sheet, and the part is with little bar copper preparation, and simple process, low cost restricts interlocking support through the stopper, during the unblock, receives interlocking support's gravity and the effect of inside spring for the key can not be pulled out, has guaranteed power consumption safety, simple to operate simultaneously, and the operation is reliable, and this product cost reduces 95% relative foreign cost, very big meeting domestic demand.

Drawings

FIG. 1 is an overall view of the state before unlocking when the utility model is opened;

FIG. 2 is a state diagram of the brake opening before the brake opening is unlocked;

FIG. 3 is an overall view of the state after locking when opening the brake according to the present invention;

FIG. 4 is a state diagram of time-division brake after the brake-division lock;

FIG. 5 is an overall view of the utility model showing no locking state during closing;

FIG. 6 is a diagram of a closing state when the closing is unlocked;

FIG. 7 is an overall view of the state of the lock-down mechanism during closing;

fig. 8 is a closing state diagram when closing cannot be locked.

In the figure: 1. interlocking plates; 2. an operating shaft; 3. an operating mechanism mounting plate; 4. a limiting block; 5. an interlock bracket; 6. guiding and fixing the copper ring; 7. a lock bracket; 8. a mechanical lock.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention but do not require the present invention to be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1-4, a three-in-two locking interlocking mechanism is disclosed, which comprises an interlocking plate 1, an interlocking bracket 5, an operating mechanism mounting plate 3 and a mechanical lock 8, wherein the interlocking plate 1 is mounted at the upper end of the operating mechanism mounting plate 3, an operating shaft 2 is arranged at the top of the interlocking bracket 5, a limiting block mounting hole is arranged on the operating shaft 2, a lock bracket 7 is arranged at the bottom of the operating mechanism mounting plate 3, the mechanical lock 8 is arranged on the lock bracket 7, and a transverse plate is arranged at the bottom of the interlocking bracket 5;

the mechanical lock 8 is rotated, the lock tongue pushes the interlocking support 5 to move upwards, the top end of the interlocking support 5 partially shields the operating shaft 2, the operating handle cannot be inserted into the operating shaft and manual switching-on cannot be achieved, and meanwhile when the interlocking support 5 moves upwards, the top portion extrudes the electric auxiliary contact, and therefore electric switching-on is disabled.

In this embodiment, the operation shaft 2 is provided with a limit block 4, when the operation shaft 2 rotates, the limit block 4 rotates to the lower part of the operation shaft 2, the boss on the limit block 4 rotates to the lower part of the operation shaft 2 along with the rotation of the operation shaft 2, so that the interlocking bracket 5 does not move up, the key cannot be pulled out, the key cannot be taken away to operate another wire inlet cabinet operation mechanism, the safety of a power supply system is ensured,

in this embodiment, the limiting block 4 is connected with the operating shaft 2 through screws, so that the limiting block is convenient to detach and replace.

In this embodiment, the interlock bracket 5 is provided with a guide fixing copper ring 6, and the guide fixing copper ring 6 defines the direction in which the interlock bracket 5 moves up and down.

In this embodiment, the lock bracket 7 is connected with the operating mechanism mounting plate 3 through screws, and the screws are fixed to facilitate setting the contact distance between the mechanical lock 8 and the interlocking bracket 5, so as to further ensure that the interlocking bracket 5 safely shields the operating shaft 2.

In the present embodiment, the mechanical lock 8 and the lock hole on the operating shaft 2 are provided with corresponding keys. The working principle is as follows: the device can be started to mechanically lock and unlock the ABB original operating mechanism in the opening state, and the process is as follows:

mechanical locking: as shown in fig. 1-2, when the mechanical key is rotated in the opening state, the bolt is rotated to push the interlocking bracket 5 to move up to a certain position, and then the key can be pulled out. At the moment, the interlocking support 5 shields the operating shaft 2, so that the operating mechanism of the switch cabinet cannot be manually switched on by using a handle, meanwhile, the interlocking support 5 pushes the interlocking plate 1 to move upwards, the interlocking plate 1 presses down the electric auxiliary contact, so that the switch cabinet cannot be electrically switched on, the electricity utilization safety is ensured, and the misoperation is prevented, as shown in attached figures 3-4.

Mechanical unlocking: the key is inserted into the mechanical lock 8 to rotate in the opposite direction, the interlocking support 5 moves downwards to an initial state under the action of the dual force of the dead weight and the reset spring on the interlocking plate 1, the key cannot be pulled out at the moment, and the installed ABB original operating mechanism can be manually and electrically operated;

the device is not allowed to mechanically lock the ABB original operating mechanism in a closing state, and the principle is as follows:

in a closing state, as shown in the attached figures 5-6, a mechanical lock key is rotated, the bolt rotates to push the interlocking support 5 to move upwards, and due to the limitation of the limit block 4 (when the door is closed, the boss of the limit block rotates to the lower part of the operating shaft 2 along with the rotation of the operating shaft 2), the interlocking support 5 cannot move upwards in place, and the key cannot be pulled out, so that the key cannot be taken away to operate another wire inlet cabinet operating mechanism, and the safety of a power supply system is ensured, as shown in the attached figures 7-8.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The three-in-two locking interlocking mechanism is characterized by comprising an interlocking plate (1), an interlocking support (5), an operating mechanism mounting plate (3) and a mechanical lock (8), wherein the interlocking plate (1) is mounted at the upper end of the operating mechanism mounting plate (3), an operating shaft (2) is arranged at the top of the interlocking support (5), the interlocking support (5) is mounted on the operating mechanism mounting plate (3) through a guide fixing copper ring (6), a mounting hole of a limiting block (4) is formed in the operating shaft (2), the limiting block (4) is mounted on the operating shaft (2), a lock support (7) is arranged at the bottom of the operating mechanism mounting plate (3), the mechanical lock (8) is arranged on the lock support (7), and a transverse plate is arranged at the bottom of the interlocking support (5);

the mechanical lock (8) is rotated, the lock tongue pushes the interlocking support (5) to move upwards, the top end of the interlocking support (5) is connected with the operating shaft (2), the operating handle cannot be inserted into the operating shaft (2), manual switching-on cannot be achieved, and meanwhile when the interlocking support (5) moves upwards, the top portion extrudes the electric auxiliary contact, and electric switching-on is disabled.

2. The three-in-two lock interlocking mechanism according to claim 1, wherein a limiting block (4) is arranged on the operating shaft (2), and when the operating shaft (2) rotates, the limiting block (4) rotates to the lower part of the operating shaft (2).

3. A three-in-two lock interlock mechanism according to claim 2, wherein the stopper (4) is connected to the operating shaft (2) by a screw.

4. A three-in-two lock interlock mechanism according to claim 1 wherein a guiding fixing copper ring (6) is provided on the interlock support (5).

5. A three-in-two lock interlock mechanism according to claim 1 wherein the lock bracket (7) is screwed to the operating mechanism mounting plate (3).

6. A three-in-two lock interlock mechanism according to claim 1 wherein the mechanical lock (8) and the locking hole on the operating shaft (2) are provided with corresponding keys.