JPH0656409U - Door locking device - Google Patents

Abstract

(57) [Summary] [Object] To provide an inexpensive and easy-to-manage door locking device that has a simple structure and can reliably lock and unlock the door of the storage box. In a storage box body 10 in which a plurality of door portions 2 and 4 are arranged with an appropriate positional relationship, the first door portion 2
The locking means 70 for locking the
The door locking device is provided at a position close to the door portion 2 of the above, and the releasing means 80 for releasing the locking means 70 is provided in the storage box body 10 shielded by the second door portion 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door locking device, and more particularly, to a box door locking device that houses an automatic fire extinguisher or the like for detecting a fire disaster in a building and automatically extinguishing the fire. is there.

[0002]

[Prior art]

 Conventionally, for example, an automatic fire extinguishing device that detects a fire and automatically injects a fire extinguishing agent such as powder or liquid has been proposed and implemented. These automatic fire extinguishers are connected to fire detectors such as smoke detectors and heat detectors installed in the monitoring area, and fire extinguishing agents are ejected according to the detection signals of these fire detectors.

These automatic fire extinguishing apparatuses are provided in a storage box body 10 having an appropriate size, as shown in FIG. 4, and the storage box body 10 is, for example, The compartment is divided into two stages, and the compartments are provided with doors 2 and 4, respectively, and the compartment below the storage box 10 shielded by the door 4 has the automatic fire extinguishing function. A control unit for controlling the automatic fire extinguisher is provided in the upper compartment of the storage box 10 in which a cylinder or the like containing a fire extinguishing agent used in the apparatus is stored and which is shielded by the door 2. A control panel and the like are arranged.

Incidentally, 3 in FIG. 4 is an injection nozzle in the automatic fire extinguisher. By the way, in the automatic fire extinguisher having such a configuration, the inspection is performed by opening the door 2 of the storage box 10 in which the control unit of the fire extinguisher during inspection is stored. However, the box 10 that houses the automatic fire extinguisher may be usually placed in a place where an unspecified number of people come and go, and if the door 2 of the storage box 10 is easily opened, the internal control unit, etc. There was a problem of being mischievous. Further, in order to prevent this, if the storage box body 10 itself is locked, mischief or the like can be prevented, but the management of the key is complicated.

[0005]

[Problems to be solved by the device]

 The object of the present invention is to improve the above-mentioned drawbacks of the prior art and to provide an inexpensive and easy-to-manage door locking device having a simple structure and capable of reliably locking and unlocking the door portion of the storage box. It is provided.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention adopts the technical configurations as described below. That is, in a storage box body in which a plurality of door sections are arranged with an appropriate positional relationship, a locking means for locking the first door section is provided close to the first door section of the storage box section. This is a door locking device which is provided at a different position and is provided with release means for releasing the lock means in the storage box body shielded by the second door portion.

[0007]

[Action]

 Since the door locking device according to the present invention has the above-described technical structure, even if a third party tries to operate the control circuit and the control panel of the automatic fire extinguisher arbitrarily, the control circuit Since the door that shields the compartment containing the control unit such as the control panel is locked, it is not opened, and the unlocking means of the locking means for further opening the door is, for example, The position of the unlocking means of the locking means can be confirmed only when the door that shields the compartment containing the cylinder containing the extinguishant is opened. Only a predetermined manager can unlock the locking means, and a third party cannot operate the control unit of the automatic fire extinguisher without permission.

[0008]

【Example】

 An embodiment of a door locking device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially enlarged perspective view illustrating a configuration of an embodiment of a door locking device according to the present invention, in which a plurality of door portions 2 and 4 have the same positional relationship and are the same. In the storage box body 10 arranged in the side surface 13, lock means 70 for locking the first door section 2 is provided at a position close to the first door section 2 of the storage box body 10, and There is shown a door locking device in which the releasing means 80 for releasing the locking means 70 is provided in the storage box body 10 shielded by the second door portion 4.

In FIG. 1, the locking means 70 and the unlocking means 80 are shown as the unlocking means 7 integrally configured. The automatic fire extinguisher according to the present invention will be described with reference to FIG. 1 and FIG. 4. Reference numeral 14 is an upper partition that accommodates the control unit 11 of the automatic fire extinguisher, and has an opening on the front surface. Is provided with a door 2 that can be opened and closed.

Reference numeral 15 denotes a lower partition 15 that houses a cylinder 12 containing an extinguishant, which has an opening on the front surface, and the door 4 which can be opened and closed is provided in the opening. Reference numeral 3 is a fire extinguishing agent injection nozzle. In the extinguishant cylinder 12, for example, an extinguishing agent is stored under pressure together with an inert gas.

The locking means 70 used in the door locking device according to the present invention is, as shown in FIG. 1, an upper end portion of a lower compartment 15 in which the extinguishant cylinder 12 is housed, or the control unit. It may be arranged at the lower end of the upper partition 14 in which the control portion 11 is housed, and at a position corresponding to each partition and in contact with the door 2 that shields the upper partition. I want it.

The configuration of the lock means 70 is not particularly limited, and the door portion 2 is input until a release signal is input or a release operation is performed by the release means 80 described later. Any structure may be used as long as it can lock 2. The locking means 70 shown in FIG. 1 shows an example thereof, and is constituted by, for example, a ratch bolt, and the latch bolt 70 is fitted to the strike portion 21 provided in the corresponding door portion 2. Then, the door 2 is securely locked.

The latch bolt 70 is pressed into contact with the strike portion 21 of the door portion 2 and protrudes into the opening 22 provided in the strike portion 21 by the action of a spring or the like to cause the latch bolt 70 to move. The bolt 70 is locked by being fitted into the opening 22 provided in the strike portion 21. On the other hand, the releasing means 80 is required to be arranged at a position where it can be perceived from the outside when the second door part 4 is opened, and the position is not particularly limited. .

In the specific example of FIG. 1, it is provided at a position where it is hidden by one end of the door portion 4. Therefore, a predetermined manager opens the door portion 4 to open the releasing means. It is possible to recognize the position of 80 and thereby operate the releasing means 80 to release the locking means 70. In the embodiment of the present invention, a push button type release button 80 is provided as the release means 80, and when the administrator presses the release button 80, the latch bolt 70 as the lock means 70 is pushed down. Therefore, the engagement between the latch bolt 70 and the opening portion 22 provided in the strike portion 21 is released, and the door portion 2 can be opened.

FIG. 2 is a view showing a state in which both of the door portions 2 and 4 are closed in the door locking device according to the present invention, and FIG. 3 shows that both door portions 2 and 4 are closed. It is a figure showing the state where both are opened. The locking means 70 and the releasing means 80 in the present invention may have a mechanical structure, or a mechanism for locking / unlocking using an electric means may be adopted.

Further, in the present embodiment, the structure in which the lock means 70 and the release means 80 are arranged relatively close to each other is shown, but in the present invention, it is not always necessary to bring both parties close to each other. It is not necessary to dispose the releasing means 80, for example, even if the door portion 4 is opened, the releasing means 80 may be placed at a position where it cannot be easily perceived by a third party. good.

Particularly, in the locking means 70 and the releasing means 80 using the electric means, the arrangement positions of the respective means can take a considerable degree of freedom. Also, the relationship between the first door portion 2 and the second door portion 4 may not be fixed, but may be upside down. The parts 2 and 4 may not be adjacent to each other.

In the above embodiment of the present invention, the example in which the number of the door portions is two is shown, but the number of the door portions is not limited to this, and the number of the door portions is two or more. Needless to say, the present invention can be applied to a box body, and the present invention is not limited to an automatic fire extinguisher, but can be applied to a storage box body for various purposes. Next, an operation example of the door locking device according to the present invention will be described. As shown in Fig. 2, the doors 2 and 4 are normally closed.

In this state, the latch bolt 70 of the locking means 70 is fitted into the opening 22 of the strike portion 21 of the door portion 2 and is in a locked state. Therefore, the door 2 cannot be opened. As shown in FIG. 5, the door 4 of the lower partition 15 can be freely opened and closed. The extinguishant cylinder 12 is housed inside the lower compartment 15, and there is no risk of being mischievous even if the door 4 is opened.

Here, the door 4 of the lower partition 15 is opened (FIG. 5 (a)). Next, when the unlock button 80 of the unlocking means 80 is pushed (FIG. 5 (b)), the locking means 70 is turned on. The latch bolt 70 is retracted and the strike part 21 is opened, so that the door part 2 can be opened. (FIG. 5 (c)) Next, when closing the door part 2, the strike part 21 hits the taper part of the latch bolt 70 from the state of FIG. 6 (a) and pushes in the latch bolt 70 (FIG. 6 (b)). Then, the latch bolt 70 is fitted into the opening 22 of the strike 21 and locked (FIG. 6C), and the door 2 can be closed.

Even when the door portion 4 is closed before the door portion 2, the door portion 2 can be similarly closed.

[0022]

[Effect of device]

 According to the lock device of the present invention, the door cannot be easily opened without using a special key or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a configuration of a lock device for a door according to the present invention.

FIG. 2 is a view showing a state in which a door portion is closed in the door locking device according to the present invention.

FIG. 3 is a view showing a state in which a door portion is opened in the door locking device according to the present invention.

FIG. 4 is a diagram showing a configuration example of a conventional automatic fire extinguisher.

FIG. 5 is a view for explaining the opening procedure of the door portion in the door locking device according to the present invention.

FIG. 6 is a view for explaining the closing procedure of the door portion in the door locking device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door locking device 2, 4 ... Door part 7 ... Lock release means 10 ... Storage box body 11 ... Control part 12 ... Fire extinguishing cylinder 13 ... One side surface part of the storage box body 14 ... Upper division part 15 ... Lower division Part 21 ... Strike part 22 ... Opening part 70 ... Locking means, latch bolt part 80 ... Release means, push button

Claims (3)

[Scope of utility model registration request] 1. A storage box body in which a plurality of door sections are arranged in an appropriate positional relationship, wherein a locking means for locking the first door section is a first door of the storage box body section. A lock device for a door, characterized in that a release means for releasing the lock means is provided in a position close to the portion, and is provided in the storage box body shielded by the second door portion. 2. The door locking device according to claim 1, wherein the releasing means is arranged at a position where it can be perceived from the outside when the second door portion is opened. 3. The first door portion is configured to be opened by opening the second door portion and operating the releasing means to release the locking means. The door locking device according to claim 1, which is characterized in that.