JP2606241Y2 - Door locking device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device, and more particularly to a door lock for a box housing an automatic fire extinguishing device for detecting a fire in a building or the like and automatically extinguishing the fire. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, 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 extinguishing devices are connected to fire detectors such as smoke detectors and heat detectors installed in a monitoring area, and eject a fire extinguisher according to the detection signals of these fire detectors.

[0003] These automatic fire extinguishing devices are provided in a storage box 10 having an appropriate size as shown in FIG. 4, for example. Doors 2 and 4 are provided in the respective sections, and the lower section of the storage box 10 which is shielded by the doors 4 is provided with the automatic fire extinguishing. A cylinder or the like containing a fire extinguisher used in the device is stored therein, and the upper compartment of the storage box 10 which is shielded by the door portion 2 includes:
A control means for controlling the automatic fire extinguishing device, a control panel, and the like are provided.

[0004] Incidentally, reference numeral 3 in FIG. 4 denotes an injection nozzle in the automatic fire extinguisher. By the way, the automatic fire extinguishing device having the above-described configuration is configured such that the inspection is performed by opening the door portion 2 of the storage box 10 in which the control unit of the fire extinguishing device for inspection is stored. However, there is a case where the box 10 storing the automatic fire extinguishing device is usually placed in a place where an unspecified number of people enter and leave,
If the door 2 of the storage box 10 is easily opened, there is a problem that the internal control unit or the like is mischievous. Further, if the storage box 10 itself is locked to prevent this, mischief and the like can be prevented, but the management of the key is complicated.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks of the prior art, to have a simple structure, and to be inexpensive to securely lock and unlock the door of the storage box. An object of the present invention is to provide a door lock device that is easy to manage.

[0006]

The present invention employs the following technical configuration to achieve the above object. That is, this is a door locking device for a storage box having a plurality of doors that can be opened and closed without using a key.
And locking means for locking the first door by fitting a latch bolt into an opening of a strike provided in the first door. And a releasing means for releasing the locking means by pulling out the latch bolt from the opening in response to the release button being pressed, is shielded by the second door of the storage box. Release button
Can be perceived from the outside when the second door is opened
It is a door lock device characterized by being arranged in a position .

[0007]

Since the door lock device according to the present invention has the above-described technical configuration, even if a third party attempts to operate the control circuit and control panel of the automatic fire extinguishing device without permission, Since the door that shields the control circuit, the compartment that houses the control unit such as the control panel is locked,
The unlocking means of the lock means for opening the door is not opened, and the unlocking means may be opened only when the door blocking the compartment storing the cylinder containing the fire extinguisher is opened. It is configured so that the position of the unlocking means of the locking means can be confirmed, so that only a predetermined administrator can unlock the locking means, and a third party can operate the control unit of the automatic fire extinguishing device without permission. I can't do it.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 the configuration of an embodiment of the door locking device according to the present invention. In the drawing, a plurality of doors 2 and 4 have the same positional relationship and have the same positional relationship. In the storage box 10 arranged in the side surface 13, a locking means 70 for locking the first door 2 is provided at a position close to the first door 2 of the storage box 10, and A door lock device is shown in which a release means 80 for releasing the lock means 70 is provided in the storage box 10 shielded by the second door part 4.

In FIG. 1, the lock means 70 and the release means 80 are shown as an integrated lock release means 7. The automatic fire extinguisher according to the present invention will be described with reference to FIG. 1 and FIG. 4. Referring to FIG. An openable and closable door unit 2 is provided.

Reference numeral 15 denotes a lower partition 15 which accommodates a cylinder 12 containing a fire extinguishing agent. The lower partition 15 has an opening on the front surface, and the opening is provided with an openable and closable door 4. Reference numeral 3 denotes a fire extinguishing agent injection nozzle. In the fire extinguishing agent cylinder 12, for example, a fire extinguishing agent is stored under pressure together with an inert gas.

The lock means 70 used in the door locking device according to the present invention is provided with the fire extinguisher cylinder 1 as shown in FIG.
2 or the upper end of the lower partition 15 in which
The control section 11 is disposed at the lower end of the upper section 14 in which the control section 11 is housed, and at a position corresponding to each of the sections to be in contact with the door section 2 which shields the upper section. Is desirable.

The structure of the locking means 70 is not particularly limited, and the door 2 can be unlocked by a releasing means 8 described later.
Any structure may be used as long as the door unit 2 can be locked until the input of the release signal by 0 or the execution of the release operation is performed. The lock means 70 shown in FIG. 1 is an example of the lock means, and is constituted by, for example, a latch bolt. The latch bolt 70 is fitted with the strike part 21 provided on the corresponding door part 2. Thus, the door 2 is securely locked.

The latch bolt 70 comes into contact with the strike portion 21 of the door portion 2 and is pushed in, and projects into the opening 22 provided in the strike portion 21 by the action of a spring or the like so that the latch bolt 70 is released. 70 is locked by fitting with the opening 22 provided in the strike part 21. On the other hand, the release means 80 needs to be arranged at a position that can be perceived from the outside when the second door portion 4 is opened, and the position is not particularly limited.

In the specific example shown in FIG. 1, the door 4 is provided at a position that is hidden by one end thereof. Can be recognized, whereby the unlocking means 80 can be operated to unlock the locking means 70. In the embodiment of the present invention, a release button 80 of a push button type is provided as the release means 80.
When the administrator presses the latch bolt 70 as the locking means 70, the latch bolt 70 is pushed down, so that the latch bolt 70 and the opening 22 provided in the strike portion 21 are pressed.
Is released, and the door 2 can be opened.

FIG. 2 is a view showing a state in which the doors 2 and 4 are both closed in the door locking device according to the present invention, and FIG. It is a figure showing the state where both were opened. The lock means 70 and the release means 80 in the present invention may have a mechanical structure, and may employ a mechanism for locking / unlocking using electric means.

In this embodiment, the locking means 7
0 and the release means 80 are arranged at positions relatively close to each other, but in the present invention, it is not always necessary to arrange both close to each other. For example, when the door 4 is opened. However, the release means 80 may be arranged at a position where it cannot be easily perceived by a third party.

In particular, locking means 70 using electrical means
And in the release means 80, the arrangement position of each means is
There is considerable freedom. Also, the relationship between the first door 2 and the second door 4 is not a fixed relationship,
The doors may be in an upside-down relationship, or may be adjacent to each other in the lateral direction, or may not be directly adjacent to both doors 2 and 4.

In the above embodiment of the present invention, two doors are shown as an example. However, the present invention is not limited to this, and a storage box having two or more doors and any number of doors is provided. The present invention is not limited to an automatic fire extinguishing device, and it goes without saying that the present invention can be applied to a storage box for various uses. Next,
An operation example of the door lock device according to the present invention will be described. FIG.
As shown in the figure, the doors 2 and 4 are always closed.

In this state, the latch bolt 70 of the locking means 70 is inserted into the opening 22 of the strike portion 21 of the door 2 to lock. Therefore, the door 2 cannot be opened. As shown in FIG.
Door portion 4 can be freely opened and closed. The fire extinguisher cylinder 12 is housed inside the lower compartment 15 and there is no danger of being tampered with when the door 4 is opened.

Here, the door 4 of the lower compartment 15 is opened (FIG. 5A). Then, the unlock button 80 of the unlocking means 80 is opened.
Is pressed (FIG. 5 (b)), the latch bolt 70 of the locking means 70 retracts, the strike part 21 is opened, and the door part 2 can be opened. (FIG. 5 (c)) Next, when the door 2 is closed, the strike portion 21 hits the tapered portion of the latch bolt 70 and pushes the latch bolt 70 from the state of FIG. 6 (a) (FIG. 6 (b)). Subsequently, the latch bolt 70 is fitted and locked in the opening 22 of the strike 21 (FIG. 6C), and the door 2 can be closed.

When the door 4 is closed before the door 2, the door 2 can be similarly closed.

[0022]

According to the lock device of the present invention, it is possible to prevent the door from being easily opened without using a special key or the like.

[Brief description of the drawings]

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

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

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

FIG. 6 is a view for explaining a closing procedure of a 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 ... Unlocking means 10 ... Storage box 11 ... Control part 12 ... Fire extinguishing cylinder 13 ... One side part of this storage box 14 ... Upper partition part 15 ... Lower partition Part 21: strike part 22: opening part 70: locking means, latch bolt part 80: releasing means, push button

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 17/20 A62C 35/20 A62C 37/36 E05C 7/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of doors that can be opened and closed without using a key.
A lock device for a door in a storage box body having a strike portion provided in a first door portion.
The first door is locked by fitting the switch bolt.
Locking means for locking on the side surface of the first door portion of the storage box.
At the close position, the release button is pressed
Pulling out the latch bolt from the opening in accordance with
Release means for releasing the lock means from the storage box body.
A door lock device provided in a portion shielded by a second door portion, wherein the release button is arranged at a position that can be perceived from the outside when the second door portion is opened.