CN202187634U - Double-door interlocking device - Google Patents

Abstract

The utility model discloses a double door interlocking device, which comprises an outer door and an inner door, wherein the inner door is arranged in a door frame of a fixing device, outer door top pins are arranged on both sides of the outer door, and top pins, springs and nuts are arranged on both sides of the inner door and the door frame in sequence, wherein the springs and nuts are sleeved on the top pins and press the top pins, and the two ends of the inner door top pin arranged on the inner door are respectively butted with the outer door top pin and the lower top pin arranged on the door frame. Through the device, when the outer door is disengaged from the inner door, one end of the lower top pin that contacts the inner door top pin is located in the hole of the inner door, locking the inner door; when the outer door is butted with the inner door, the outer door top pin contacts and presses down the inner door top pin, and the lower top pin is disengaged from the hole of the inner door, thereby realizing the safety interlocking of the double doors.

Description

A double door interlocking device

technical field

The utility model relates to the field of safety protection devices, in particular to a double-door interlocking device for safety interlocking.

Background technique

In radioactive plants, the application of double door structure is very common. The inner door is installed on the glove box, heat chamber or some fixed equipment, and the outer door is installed on the movable device or container. The installation position of the double door can be vertical or horizontal, and the function of the double door is to be able to Guarantee the shielding or sealing of radioactive inclusions when material transfer is required. The utility model is proposed aiming at realizing safety interlocking when the equipment or device with the double-door structure in the radioactive factory building can realize safety interlocking.

Utility model content

In view of the needs in practical applications, the purpose of the utility model is to provide a double-door interlocking device to realize the safety interlocking of the two doors.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A double-door interlocking device, comprising an outer door and an inner door, the inner door is set in the door frame of the fixing device, the outer door is respectively provided with ejector pins on both sides of the outer door, and the inner door and the both sides of the door frame are respectively provided with ejector pins, The spring and the nut, the spring and the nut are sleeved on the ejector pin and press the ejector pin, and the two ends of the inner door ejector pin arranged on the inner door are respectively docked with the outer door ejector pin and the lower ejector pin arranged on the door frame.

Further, in the above-mentioned double door interlocking device, when the outer door is disengaged from the inner door, the end where the lower ejector pin contacts the inner door ejector pin is located in the hole of the inner door.

Still further, in the double-door interlocking device as described above, when the outer door is docked with the inner door, the ejector pin of the outer door contacts with the ejector pin of the inner door and presses down, and the lower ejector pin breaks away from the hole of the inner door.

Still further, in the above-mentioned double door interlocking device, bosses are provided on both the inner door ejector pin and the lower ejector pin, the spring presses against the boss, and the other end of the spring is locked by a nut.

Furthermore, in the above-mentioned double door interlocking device, the nuts sleeved on the top pin and the bottom pin of the inner door have external threads, and the nuts are installed in the corresponding threaded holes of the inner door and the door frame.

The effects of the utility model are as follows: the double-door interlocking device described in the utility model is designed for equipment or devices with a double-door structure in the radioactive factory building. Safety interlocking, at the same time when the outer door is removed, the inner door can also be automatically locked.

Description of drawings

Fig. 1 is the structural representation of a kind of double-door interlocking device of the present utility model;

Fig. 2 is a schematic diagram of the interlocking device of the present invention when the inner door is unlocked and the double doors are kneaded.

Detailed ways

The utility model will be further described below in conjunction with specific embodiments and accompanying drawings.

Fig. 1 shows a schematic structural view of a double-door interlocking device of the present invention, the interlocking device includes an outer door 1 and an inner door 2, the inner door 2 is arranged in the door frame 3 of the fixing device, and the two sides of the outer door 1 are respectively provided with The top pin 4 of the outer door, the two sides of the inner door 2 and the door frame 3 are successively provided with a top pin, a spring and a nut. The spring and the nut are sleeved on the top pin and pressed against the top pin. The two ends of the pin 5 are respectively docked with the ejector pin 4 of the outer door and the lower ejector pin 8 arranged on the door frame 3 .

Realize the locking of double door by the utility model, mainly realize by being installed in two cover springs, ejector pin and nut on inner door 2 and door frame 3. Both the inner door top pin 5 and the lower top pin 8 are provided with a boss, the spring is pressed against the boss, the other end of the spring is locked by a nut, and the nuts sleeved on the inner door top pin 5 and the lower top pin 8 have External thread, the nut is installed in the corresponding threaded hole of the inner door and the door frame. When the outer door 1 was disengaged from the inner door 2, the end of the lower ejector pin 8 contacting the inner door ejector pin 5 was located in the hole of the inner door, which played the role of locking the inner door 2. When the outer door 1 is docked with the inner door 2, the ejector pin 4 of the outer door contacts and presses down with the ejector pin 5 of the inner door, and the lower ejector pin 8 breaks away from the hole of the inner door, and the outer door and the inner door are kneaded together. Simultaneously, the inner door 2 is unlocked, realizing the safety interlocking of the double doors, as shown in FIG. 2 .

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model is also intended to include these modifications and variations.

Claims (5)

1. A double-door interlocking device, comprising an outer door (1) and an inner door (2), the inner door (2) being arranged in the fixing device door frame (3), characterized in that: the two sides of the outer door (1) are respectively The outer door ejector pin (4) is provided, and both sides of the inner door (2) and the door frame (3) are provided with ejector pins, springs and nuts in turn, and the springs and nuts are sleeved on the ejector pins and pressed against the ejector pins. The two ends of the inner door ejector pin (5) on the inner door (2) are respectively docked with the outer door ejector pin (4) and the lower ejector pin (8) arranged on the door frame. 2. The double-door interlocking device according to claim 1, characterized in that: when the outer door (1) is disengaged from the inner door (2), the lower ejector pin (8) and the inner door ejector pin (4) ) The end that contacts is positioned at the hole of inner door (2). 3. The double door interlocking device according to claim 1, characterized in that: when the outer door (1) is docked with the inner door (2), the outer door ejector pin (4) and the inner door ejector pin (5) ) contact and press down, and the lower ejector pin (8) breaks away from the hole of the inner door (2). 4. The double door interlocking device according to claim 1, 2 or 3, characterized in that: the inner door ejector pin (4) and the lower ejector pin (8) are provided with bosses, the springs are pressed against On the boss, the other end of the spring is locked by a nut. 5. The double-door interlocking device as claimed in claim 4, characterized in that: the nuts sleeved on the inner door jack pin (4) and the lower jack pin (8) have external threads, and the nuts are installed on the inner door (2) and in the corresponding threaded holes of the door frame (3).

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