CN210223829U

CN210223829U - Mechanical interlocking structure for preventing control cabinet door from being opened in electrified state

Info

Publication number: CN210223829U
Application number: CN201921597544.5U
Authority: CN
Inventors: Xuelian Liu; 刘雪莲
Original assignee: Tianjin Electric Research Automatic Control Device Co Ltd
Current assignee: Tianjin Electric Research Automatic Control Device Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-03-31
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a mechanical interlocking structure of switch board cabinet door is opened when preventing to be electrified, including the cabinet body, fixed plate, stopper, fixed establishment, shell, baffle, spring, bolt, skeleton, move iron core, quiet iron core and coil. The utility model has the advantages that: through shell fixed mounting in the cabinet door, the coil twines on the skeleton, quiet iron core fixed connection skeleton, move iron core sliding connection skeleton, the bolt cup joints in moving the iron core, the quiet iron core of bolt sliding connection, the bolt block is in the stopper, thereby realize when main circuit breaker closes a floodgate, the coil circular telegram, produce magnetic field, it slides in the skeleton to move the iron core, make the quiet iron core of movable core conflict, it slides to move the iron core and drive the bolt, the bolt inserts the stopper, thereby in the circular telegram of switch board, during the stopper on the bolt insertion fixed plate on making the cabinet door, under certain safety consideration, prevent under the circumstances of circular telegram, prevent the artificial electrical equipment such as switch once more in the operation cabinet.

Description

Mechanical interlocking structure for preventing control cabinet door from being opened in electrified state

Technical Field

The utility model relates to a mechanical interlocking structure specifically is a mechanical interlocking structure who opens switch board cabinet door when preventing to be electrified, belongs to power equipment technical field.

Background

The control box is suitable for occasions such as factories, mines, enterprises, markets, hotels, schools, airports, ports, hospitals, high-rise buildings, living quarters and the like, is used for power, lighting distribution and motor control in a low-voltage power grid system with the alternating current of 50HZ and the rated working voltage of 380V, and is suitable for indoor wall-hung and outdoor floor-mounted distribution equipment. The system is also used for controlling fire-fighting water pumps, diving pumps, fire-fighting fans, fans and lighting power distribution in an electric power system with 50HZ alternating current and voltage below 500V, and the control modes comprise direct start control, star-delta step-down start control, self-coupling step-down start control, frequency converter start control, soft start control and other various control modes, and an isolating switch and a fuse type switch can be used as isolating and breaking points.

However, when the control cabinet is used, if the control cabinet is powered on after the main switch is powered on, under certain safety considerations, the control cabinet door is not allowed to be opened again by people, and the switch and other electrical equipment in the control cabinet are operated; but present switch board utilizes the key to open and shut the cabinet door to can't be after the circular telegram, prevent that the people from opening the cabinet door.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mechanical interlocking structure who prevents to open the switch board cabinet door when electrified just lies in solving above-mentioned problem, and after the switch board circular telegram, the cabinet door and the cabinet body that make the switch board pin through the electromagnetism round pin to under the situation of circular telegram, prevent that the switch board from being opened.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a mechanical interlocking structure who opens switch board cabinet door when preventing to be electrified, including the cabinet body and cabinet door, its characterized in that: the cabinet body is hinged with the cabinet door, the cabinet body is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a limiting block, the cabinet door is fixedly provided with a fixed mechanism, the fixed mechanism comprises a shell, a baffle, a spring, a bolt, a framework, a movable iron core, a static iron core and a coil, the shell is fixedly arranged on the cabinet door, the baffle is fixedly arranged on the shell, the framework is fixedly arranged on the shell, the coil is wound on the framework, the static iron core is fixedly connected with the framework, the movable iron core is slidably connected with the framework, the bolt is sleeved on the movable iron core, the bolt is slidably connected with the static iron core, the bolt is slidably connected with the shell, the bolt is slidably connected with the baffle, the spring is sleeved on the bolt, one end of the spring is fixedly connected with the baffle, and the other end of, the bolt is clamped on the limiting block.

Preferably, in order to protect the end portion of the plug pin, the fixing mechanism further comprises a stopper, the stopper is fixedly connected with the plug pin, the baffle is of a cylindrical structure, and the diameter of the baffle is larger than that of the plug pin.

Preferably, in order to prevent under the condition of outage suddenly, the coil outage, the bolt is followed separation in the stopper, the cabinet door with the fixed plate separation makes the cabinet door with the fixed plate is not in the coplanar, leads to after the circular telegram, the bolt can't reinsert the appearance of the condition in the stopper, cabinet body fixed connection strengthening mechanism, strengthening mechanism includes slide bar, kelly and plectrum, baffle fixed connection the slide bar, the slide bar is contradicted the kelly, plectrum fixed connection the kelly, plectrum sliding connection the cabinet door, kelly sliding connection the cabinet door, the fixed block is connected to the kelly block, fixed block fixed mounting in the fixed plate.

Preferably, in order to better drive the slide bar to move, the reinforcing mechanism further comprises a clamping block, and the clamping block is connected with the slide bar in a clamping manner.

Preferably, for the convenience of the better insertion of bolt the stopper the better insertion of kelly in the fixed block, quiet iron core with move the distance between the iron core and equal to the degree of depth of card hole in the stopper.

Preferably, in order to better facilitate the movement of the latch through the stopper to drive the clamping rod, the centers of the latch and the clamping rod are in the same straight line.

The utility model has the advantages that: when the utility model is used, the cabinet door is fixedly arranged on the cabinet door through the shell, the baffle plate is fixedly arranged on the shell, the framework is fixedly arranged on the shell, the coil is wound on the framework, the static iron core is fixedly connected with the framework, the movable iron core is slidably connected with the framework, the bolt is sleeved on the movable iron core, the bolt is slidably connected with the static iron core, the bolt is slidably connected with the shell, the bolt is slidably connected with the baffle, the spring is sleeved with the bolt, one end of the spring is fixedly connected with the baffle, the other end of the spring is fixedly connected with the bolt, the bolt is clamped on the limiting block, thereby realizing that when the main breaker is switched on, the coil is electrified to generate a magnetic field, the movable iron core slides in the framework to enable the static iron core to be abutted against the movable iron core, the movable iron core drives the bolt to slide, the bolt, the control cabinet door is prevented from being opened again, and electrical equipment such as switches in the cabinet is operated.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the reinforcement mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the fixing plate, the fixing block and the limiting block shown in FIG. 2;

FIG. 4 is a schematic view of the connection structure of the cabinet door, the reinforcing mechanism and the fixing mechanism shown in FIG. 1;

fig. 5 is a circuit connection diagram of the present invention.

In the figure: 1. the cabinet body, 2, the fixed plate, 3, the cabinet door, 4, the reinforcing mechanism, 41, the fixture block, 42, the slide bar, 43, the clamping bar, 44, the plectrum, 5, the fixed block, 6, the stopper, 7, the fixing mechanism, 71, the shell, 72, the baffle, 73, the dog, 74, the spring, 75, the bolt, 76, the skeleton, 77, the movable iron core, 78, the static iron core, 79, the coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a mechanical interlocking structure for preventing opening of a cabinet door of a control cabinet in an electrified state includes a cabinet body 1 and a cabinet door 3, the cabinet body 1 is hinged to the cabinet door 3, the cabinet body 1 is fixedly connected to a fixing plate 2, the fixing plate 2 is fixedly connected to a limiting block 6, the cabinet door 3 is fixedly provided with a fixing mechanism 7, the fixing mechanism 7 includes a housing 71, a baffle 72, a spring 74, a bolt 75, a framework 76, a movable iron core 77, a stationary iron core 78 and a coil 79, the housing 71 is fixedly installed on the cabinet door 3, the baffle 72 is fixedly installed on the housing 71, the framework 76 is fixedly installed on the housing 71, the coil 79 is wound on the framework 76, the stationary iron core 78 is fixedly connected to the framework 76, the movable iron core 77 is slidably connected to the framework 76, the bolt 75 is sleeved to the movable iron core 77, the bolt 75 is slidably connected to the stationary, the bolt 75 is slidably connected to the housing 71, the bolt 75 is slidably connected to the baffle 72, the spring 74 is sleeved with the bolt 75, one end of the spring 74 is fixedly connected to the baffle 72, the other end of the spring 74 is fixedly connected to the bolt 75, and the bolt 75 is clamped to the limiting block 6.

As a technical optimization scheme of the utility model, fixed establishment 7 still includes dog 73, dog 73 fixed connection bolt 75, baffle 72 is cylindrical structure, the diameter of baffle 72 is greater than the diameter of bolt 75.

As a technical optimization scheme of the utility model, 1 fixed connection strengthening mechanism 4 of the cabinet body, strengthening mechanism 4 includes slide bar 42, kelly 43 and plectrum 44, baffle 72 fixed connection slide bar 42, slide bar 42 is contradicted kelly 43, plectrum 44 fixed connection kelly 43, plectrum 44 sliding connection cabinet door 3, kelly 43 block connection

fixed block

5, 5 fixed mounting in fixed plate 2.

As a technical optimization scheme of the utility model, the reinforcing mechanism 4 still includes fixture block 41, fixture block 41 block connection slide bar 42.

As a technical optimization scheme of the utility model, quiet iron core 78 with move the distance between the iron core 77 and equal the degree of depth in card hole in the fixed block 5, quiet iron core 78 with move the distance between the iron core 77 and equal the degree of depth in card hole in the stopper 6.

As a technical optimization scheme of the present invention, the pin 75 and the circle center of the clamping rod 43 are located on the same straight line.

When the utility model is used, firstly, the power of the main breaker secondary side of the control cabinet is used as the power supply of the coil 79, thereby when the main breaker is switched on, the coil 79 is electrified, thereby a magnetic field is generated, the movable iron core 77 slides in the framework 76, thereby the movable iron core 77 conflicts the static iron core 78, the movable iron core 77 drives the bolt 75 to slide, thereby the bolt 75 is inserted into the limiting block 6, the spring 74 is stressed, and when the bolt 75 slides, the block 73 drives the slide rod 42 to slide together, the clamping block 41 on the slide rod 42 is clamped with the clamping rod 43, thereby the clamping rod 43 is driven to slide, the clamping rod 43 is inserted into the fixing block 5, and the shifting piece 44 fixed on the clamping rod 43 moves on the cabinet door 3; then when needing the maintenance, the power is cut off, thereby make coil 79 cut off the power, the magnetic field disappears, spring 74 makes bolt 75 reset, thereby make bolt 75 separate with fixed block 5, move iron core 77 and slide in skeleton 76, and dog 73 drives slide bar 42 to move when moving and makes slide bar 42 and fixture block 41 reset, then slide plectrum 44 to the direction of slide bar 42, it is to drive the slip of kelly 43, make the separation of kelly 43 and fixed block 5, thereby under the condition of preventing the sudden power failure, bolt 75 separates from stopper 6, cabinet door 3 and fixed plate 2 separate, make cabinet door 3 and fixed plate 2 not coplanar, lead to after the circular telegram, bolt 75 can't reinsert in stopper 6.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prevent to open mechanical interlocking structure of switch board cabinet door when electrified, includes the cabinet body (1) and cabinet door (3), its characterized in that: the cabinet body (1) is hinged to the cabinet door (3), the cabinet body (1) is fixedly connected with the fixed plate (2), the fixed plate (2) is fixedly connected with the limiting block (6), the cabinet door (3) is fixedly provided with the fixed mechanism (7), the fixed mechanism (7) comprises a shell (71), a baffle (72), a spring (74), a bolt (75), a framework (76), a movable iron core (77), a static iron core (78) and a coil (79), the shell (71) is fixedly arranged on the cabinet door (3), the baffle (72) is fixedly arranged on the shell (71), the framework (76) is fixedly arranged on the shell (71), the coil (79) is wound on the framework (76), the static iron core (78) is fixedly connected with the framework (76), the movable iron core (77) is slidably connected with the framework (76), and the bolt (75) is sleeved on the movable iron core (77), bolt (75) sliding connection quiet iron core (78), bolt (75) sliding connection shell (71), bolt (75) sliding connection baffle (72), spring (74) cup joint bolt (75), the one end fixed connection of spring (74) baffle (72), the other end fixed connection of spring (74) bolt (75), bolt (75) block in stopper (6).

2. The mechanical interlocking structure for preventing the control cabinet door from being opened in the charged state according to claim 1, is characterized in that: the fixing mechanism (7) further comprises a stop block (73), the stop block (73) is fixedly connected with the plug pin (75), the baffle plate (72) is of a cylindrical structure, and the diameter of the baffle plate (72) is larger than that of the plug pin (75).

3. The mechanical interlocking structure for preventing the control cabinet door from being opened in the charged state according to claim 1, is characterized in that: the cabinet body (1) fixed connection strengthening mechanism (4), strengthening mechanism (4) include slide bar (42), kelly (43) and plectrum (44), baffle (72) fixed connection slide bar (42), slide bar (42) are contradicted kelly (43), plectrum (44) fixed connection kelly (43), plectrum (44) sliding connection cabinet door (3), kelly (43) sliding connection cabinet door (3), fixed block (5) is connected to kelly (43) block, fixed block (5) fixed mounting in fixed plate (2).

4. The mechanical interlocking structure for preventing the control cabinet door from being opened in the charged state according to claim 3, is characterized in that: the reinforcing mechanism (4) further comprises a clamping block (41), and the clamping block (41) is connected with the sliding rod (42) in a clamping mode.

5. The mechanical interlocking structure for preventing the control cabinet door from being opened in the charged state according to claim 3, is characterized in that: quiet iron core (78) with move the distance between iron core (77) and equal to the degree of depth of card hole in fixed block (5), quiet iron core (78) with move the distance between iron core (77) and equal to the degree of depth of card hole in stopper (6).

6. The mechanical interlocking structure for preventing the control cabinet door from being opened in the charged state according to claim 3, is characterized in that: the centers of the circle of the bolt (75) and the circle of the clamping rod (43) are on the same straight line.