JP5181010B2 - Alarm device - Google Patents

Description

The present invention is an alarm device for the purpose of preventing and preventing intrusion into an ordinary intruder such as a thief or a building such as a store or a warehouse by using only compressed air without using any electric power. It is about.

Conventionally, as disclosed in the following Patent Document 1, a magnetic sensor is installed in an opening / closing member such as a door, a window, a shutter, and the like attached to an opening of a general house or building, and the opening. If an unauthorized intruder intrudes into the area and intrudes, the magnetic sensor detects that the opening / closing member has been opened, and issues a high-pitched alarm that can be heard not only by residents but also by the surrounding people. An alarm device is widely used that threatens and repels an unauthorized intruder by sound, or issues an alarm and simultaneously notifies the security company of the intruder's intrusion.

JP 2003-223684 A

However, since the alarm device that has been widely used in the past is operated by electric power, when an unauthorized intruder cuts off the power supply, the alarm device does not operate at all and achieves the purpose of security. There was a problem that it was not possible. Even if an unauthorized intruder breaks the wall without the magnetic sensor installed without breaking the power supply, the magnetic sensor cannot detect the intrusion at all and achieves the security purpose. There was a problem that it was not possible.

The present invention has been made to solve the above-described conventional problems, and provides an alarm device that operates only by compressed air and does not require any electric power to operate, unlike conventional alarm devices. With the goal.

The present invention has been made to solve the above-described problems, and detects the opening or closing of an opening / closing member that can be freely opened and closed at an opening of a building to block or supply compressed air to the second air valve. A detection unit including a first air valve to be controlled, a second air valve from which compressed air is supplied or cut off from the first air valve via a second pipe, and the second air from the first air valve. A control unit including an air horn for supplying or blocking compressed air from the air supply unit in the second air valve by the supply or blocking of the compressed air to the valve, thereby controlling the ringing; and the detection unit and the control by employing the means of Ru and an air supply unit for supplying compressed air via a first conduit in part, the above-mentioned problems are eliminated.

According to the alarm device of the present invention, the alarm device operates even when the electric wire is disconnected or at the time of a power failure by using only compressed air without using any electric power, and an unauthorized intruder such as a thief It is extremely excellent as security equipment because it can sufficiently prevent intrusion and crime prevention in ordinary houses or buildings such as stores and warehouses. In addition, according to the alarm device of the present invention, since the air horn sounds even when an unauthorized intruder breaks the wall surface and breaks the pipe without opening the opening and closing member, the crime prevention effect is higher than that of the conventional alarm device. It is extremely large. Furthermore, according to the alarm device of the present invention, since no electric power is used, it can be used not only in an explosion-proof facility, but also in a place where it gets wet with water.

It is a schematic block diagram which shows the example which attached the alarm device which concerns on this invention to a general house. It is a schematic sectional drawing which shows the state by which the security lock was set in the alarm device which concerns on 1st Embodiment of this invention. It is a schematic sectional drawing which shows the state which detected the intruder of the unauthorized intruder in the alarm device which concerns on 1st Embodiment of this invention. It is a schematic sectional drawing which shows the state by which the wall surface which installed the alarm device which concerns on 1st Embodiment of this invention was destroyed by the unauthorized intruder, and the pipe line was cut | disconnected. It is a schematic sectional drawing which shows the state by which the security lock was set in the alarm device which concerns on 2nd Embodiment of this invention. It is the schematic which shows the state which detected the intruder of the unauthorized intruder in the alarm device which concerns on 2nd Embodiment of this invention. It is a schematic sectional drawing which shows the state which detected the intruder's invasion in the alarm device which concerns on 3rd Embodiment of this invention. It is a schematic sectional drawing which shows the state which cancelled | released alarm operation | movement in the alarm device which concerns on 3rd Embodiment of this invention. In a pressurization display part applied to an alarm device concerning the present invention, it is a sectional view in which compressed air is not supplied to an air pressure circuit. In the pressurization display part applied to the alarm device which concerns on this invention, compressed air is sectional drawing which shows a supply state to an air pressure circuit.

An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall schematic configuration diagram showing a basic configuration of an alarm device according to the present invention, and shows an example attached to a general house. That is, the alarm device 1 according to the present invention includes a detection unit 10 that detects opening or closing of an opening / closing member S such as a door, window, shutter, etc. that can be freely opened and closed at an opening of a general house or building, and the detection unit. 10 includes a control unit 20 that detects the opening or closing of the opening / closing member S by 10 and controls the ringing of the air horn 9, and an air supply unit 30 that supplies compressed air to the detection unit 10 and the control unit 20. The supply unit 30, the detection unit 10, and the control unit 20 are formed by being connected by the first pipeline 6 and the second pipeline 7.

First embodiment

As shown in FIGS. 2 and 3, the alarm device 1 according to the first embodiment of the present invention opens or closes an opening / closing member that can be freely opened and closed at an opening portion of a door, window, shutter, or the like of a general house or building. , And a detection unit 10 having a first air valve 11 for controlling the shutoff or supply of compressed air to the second air valve 21, and compression from the first air valve 11 through the second pipe 7. The second air valve 21 to which air is supplied or shut off, and the compressed air from the air tank 4 in the second air valve 21 by supplying or shutting off the compressed air from the first air valve 11 to the second air valve 21. Is supplied or shut off, and is provided with a control unit 20 having an air horn 9 whose ringing is controlled by this, and an air supply unit 30 for supplying compressed air to the detection unit 10 and the control unit 20. .

The air supply unit 30 that supplies compressed air to the detection unit 10 and the control unit 20 is an activation unit of the apparatus of the present invention, and includes the air compressor 2 that is a supply source of compressed air, the detection unit 10 and the control unit 20. In the middle of the first pipe 6 to be connected, a main pressure shut-off valve 50 and a pressurization display unit 70 (see FIG. 9) are connected, and the air compressor is disposed upstream of the main pressure shut-off valve 50. 2 is provided with a check valve 3 for preventing a backflow of air, and an air tank 4 is connected thereto. In addition, the said 1st pipe line 6 branches in the middle, and supplies compressed air to the detection part 10 and the control part 20, respectively.

It is recommended that the first pipeline 6 be embedded and fixed in a wall surface W made of concrete or ALC, preferably from the downstream side of the pressure display unit 70 to the detection unit 10 and the control unit 20. The original pressure shut-off valve 50 is provided with a valve body 52 that is displaced in conjunction with the movement of the manual lever 51. As shown in FIG. 2, when the manual lever 51 is in the open state (ON), Compressed air from the air tank 4 supplied to the supply pressure port P of the original pressure cutoff valve 50 is transmitted to the output port A, and compressed air is supplied to the detection unit 10 and the control unit 20.

On the other hand, when the manual lever 51 of the main pressure cutoff valve 50 is in the closed state (OFF), as shown in the lower side of FIG. 2, the compressed air supplied to the pressure supply port P is shut off. The compressed air is not transmitted to the output port A, and the supply of compressed air to the detection unit 10 and the control unit 20 is cut off.

Corresponding to the ON / OFF operation of the original pressure shut-off valve 50, the case where the compressed air is supplied to the first pipe line 6 and the case where the compressed air is not supplied can be discriminated by the visual display on the pressurization display unit 70. It has become. The pressurization display unit 70 is not particularly limited, but it is recommended that the pressure display unit 70 be configured to identify and confirm the supply and non-supply status of compressed air by color change. Specific examples thereof will be described later.

In the store or warehouse where the alarm device of the present invention is installed, when the unmanned state such as at night occurs, the manual lever 51 of the main pressure cutoff valve 50 is opened (ON) to set the security lock. On the other hand, when it is time for an employee or the like in a store or warehouse at daytime or the like, the manual lever 51 is closed (OFF) to release the security lock. Therefore, when the security lock is released as described above, when the manual lever 51 of the original pressure cutoff valve 50 is in the closed state (OFF) as shown in the lower frame of FIG. The compressed air supplied to the port P is cut off, the supply of compressed air to the detection unit 10 and the control unit 20 is cut off, and the air horn 9 does not ring even when the opening / closing member S is opened.

The detection unit 10 is formed by installing a first air valve 11 on an opening end surface of a frame member F with which an opening / closing member S such as a door, window, shutter or the like contacts a wall surface W when closed. The detection unit 10 is formed by installing one or a plurality of first air valves 11 on the end face of the opening of the frame member F (in FIG. 2, a plurality of first air valves 11 are installed). When the opening / closing member S on which the first air valve 11 is installed is in an open state, compression from the first air valve 11 to the second air valve 21 constituting the control unit 20 is performed. Air supply is shut off.

The first air valve 11 installed on the frame member F is disposed outside the first air valve 11 so as to be displaced by a biasing member 14 that is degenerated or repelled by a push spring or the like according to the opening / closing operation of the opening / closing member S. And a valve piece 13 that is displaced in conjunction with the corresponding contact piece 12 and a contact piece 12 that contacts the opening end face of the frame member F.

As shown in FIG. 2, when the opening / closing member S is in the closed state and the abutting piece 12 abuts against the opening end face of the frame member F and the urging member 14 is degenerated, the air supply The compressed air supplied into the first air valve 11 from the pressure supply port P of the first air valve 11 through the first pipe 6 from the portion 30 is in communication with the pressure supply port P. It is transmitted to the output port A and is supplied from the output port A to the second air valve 21 via the second pipe 7.

On the other hand, as shown in FIG. 3, when the opening / closing member S is in the open state, the supply pressure port P of the first air valve 11 is closed and the compressed air supplied to the supply pressure port P is shut off. Therefore, the residual pressure on the output port A side is exhausted from the exhaust port R, and the supply of compressed air to the second air valve 21 through the second conduit 7 is shut off.

The control unit 20 is formed by installing a second air valve 21 that performs a switching operation by compressed air supplied or cut off from the first air valve 11 constituting the detection unit 10. The second air valve 2 1, the compressed air supplied or cut off from the first air valve 11 which constitutes the detection section 10, and a valve body 22 which is displaced by the biasing member 23 to emit degenerate or bullets .

As shown in FIG. 2, when the opening / closing member S is in the closed state, compressed air is supplied from the output port A of the first air valve 11 to the input port B of the second air valve 21, and the second air When compressed air is supplied from the input port B of the valve 21 into the second air valve 21, the valve body 22 is pressed downward against the biasing member 23. At this time, since the supply pressure port P is closed by the lowered valve body 22, the supply of compressed air from the air supply unit 30 via the first pipeline 6 is shut off and connected to the output port A. Since the compressed air is not supplied to the air horn 9, the air horn 9 does not ring.

On the other hand, as shown in FIG. 3, when the opening / closing member S is in the open state, the valve body 13 of the first air valve 11 blocks the pressure supply port P, so that the output port A of the first air valve 11 When the supply of compressed air to the input port B as a pilot pressure that operates the second air valve 21 is cut off via the second pipe 7, the valve body 22 is moved by the elastic force of the urging member 23. The pressure is increased by the generated force, the pressure supply port P is opened, and the compressed air is supplied into the second air valve 21 via the first pipe 6 from the air supply unit 30, and the pressure supply Compressed air is sent to the air horn 9 from the output port A communicating with the port P, and the air horn 9 is sounded. The air horn 9 continues to ring unless the supply of compressed air from the air supply unit 30 is cut off.

Although not shown, when the first air valve 11 which constitutes the detection section 10 is a plurality, a second pipe connecting the first conduit 6 and the second air valve 21 side connected to the air compressor 2 side The first air valves 11 are connected to the path 7 in series or in parallel.

When a plurality of the first air valves 11 are connected in series, the first pipeline 6 on the air compressor 2 side is connected to the pressure supply port P of the first air valve 11 located at the start end of the detection unit 10 and is terminated. The output port A of the first air valve 11 located at is connected to the second pipeline 7 on the second air valve 21 side. And as for the 1st air valve 11 arrange | positioned between a start end and a termination | terminus, the output port A and the pressure supply port P of the 1st air valve 11 mutually adjacent | abutted mutually are connected.

On the other hand, when a plurality of first air valves 11 are connected in parallel, the pressure supply ports P of the plurality of first air valves 11 are separately connected to the first pipeline 6 on the air compressor side, The output port A of the first air valve 11 is separately connected to the second pipeline 7 on the second air valve 21 side.

Next, with reference to FIG. 2 and FIG. 3, the effect | action of the alarm device 1 of Example 1 is demonstrated. First, when setting the security lock, it is confirmed that all the opening and closing members S are closed, and the air compressor 2 is operated to confirm that the air tank 4 is filled with air, and then the air supply The main pressure cutoff valve 50 of the unit 30 is turned ON. At this time, it is visually confirmed by the pressurization display unit 70 that the air pressure is supplied to the air circuit, and the setting of the security lock is completed (FIG. 2).

When the security lock is set, the compressed air from the air tank 4 is, as indicated by a large number of dots in FIG. 2, the original pressure shut-off valve 50, the pressurization display unit 70, the first pipe 6 and the first pipe . It is supplied to the second air valve 21 through the two pipe lines 7 and the first air valve 11. When compressed air is supplied into the second air valve 21 from the input port B of the second air valve 21, the valve body 22 is pushed downward against the biasing member 23 and descends, and the pressure supply port Since P is closed by the lowered valve body 22, the supply of compressed air from the air supply unit 30 through the first pipe 6 is shut off, and the air horn 9 connected to the output port A is connected to the air horn 9. The compressed air is not supplied and the air horn 9 does not ring. That is, in this state, the setting of the security lock is completed.

Hereinafter, in addition to the first embodiment, in the drawings showing each embodiment, when a large number of dots are displayed on each pipeline and each air valve, it indicates that compressed air is supplied, When there is no display of a large number of dots, it indicates that compressed air is not supplied.

After the security lock setting shown in FIG. 2 is completed, when an unauthorized intruder tries to intrude by opening the opening / closing member S from the outside, the opening / closing member S is opened as shown in FIG. The abutment piece 12 integral with the valve body 13 of the first air valve 11 constituting the upper part 10 is raised by the elastic force of the urging member 14, and the valve body 13 closes the pressure supply port P, When the compressed air supplied to the pressure port P is shut off, the residual pressure on the output port A side is exhausted from the exhaust port R, and the supply of compressed air to the second air valve 21 is shut off.

As a result of the supply of compressed air to the second air valve 21 being cut off, the valve body 22 of the second air valve 21 rises due to the elastic force of the urging member 23 and the pressure supply port P is opened. Then, the compressed air is supplied into the second air valve 21 through the first pipe 6 from the air supply unit 30 and the compressed air is supplied from the output port A communicating with the pressure supply port P to the air horn. 9, the air horn 9 is sounded and the sound of the air horn 9 is continued, so that the presence of unauthorized intruders in the surroundings is informed and the unauthorized intruders are intimidated to escape and the occurrence of crimes It can be prevented in advance. Although the air horn 9 continues to ring as long as there is compressed air in the air tank 4, the ringing of the air horn 9 can be stopped by turning off the main pressure cutoff valve 50.

FIG. 4 shows a state where the wall surface on which the alarm device according to the first embodiment of the present invention is installed is broken by an unauthorized intruder and the pipeline is cut. Unauthorized intruders do not touch the openings where sensor members such as magnetic sensors are installed in order to prevent the alarm devices installed in the conventional openings that are widely used. In some cases, the wall is not installed with a warning device. In this case, the alarm device 1 of the present invention can cope with the wall surface W by embedding and fixing the first pipeline 6 and the second pipeline 7.

That is, when an unauthorized intruder has broken the wall W and has cut the first pipeline 6 and the second pipeline 7 (FIG. 3 shows that the first pipeline 6 is cut) Although the valve body 12 of the first air valve 11 does not rise, the supply of compressed air to the pressure supply port P of the first air valve 11 is stopped and the supply of compressed air to the second air valve 21 is also stopped. As a result, the residual pressure of the second pipe line 7 connected to the second air valve 21 side is eliminated, so that the opening state of the opening / closing member S shown in FIG. 3 is the same and the air horn 9 rings. .

In the first embodiment described above, the second air valve 21 is not an indispensable component, and the output port A side of the first air valve 11 can be directly connected to the air horn 9. In this case, when the opening / closing member S is in the closed state, the first air valve 11 shuts off the compressed air supplied to the pressure supply port P, and when the opening / closing member S is in the open state, It is necessary to change the specification so that the compressed air supplied to P is transmitted to the output port A.

Second embodiment

FIG. 5 shows a state where the security lock is set in the alarm device according to the second embodiment of the present invention. FIG. 6 shows a state in which an intruder has detected intrusion in the alarm device 1 according to the second embodiment. 5 and 6, the same parts as those in FIGS. 2 and 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the alarm device 1 according to the second embodiment, the control unit 20 supplies and blocks compressed air supplied from the second air valve 21 having the same configuration as the second air valve in the first embodiment. The valve 31 is connected to the downstream side of the second air valve 21 and is also connected to the air supply unit 30. That is, the input port B that supplies compressed air as the pilot pressure of the third air valve 31 is connected to the third pipe line 8 that extends from the output port A of the second air valve 21. The air horn 9 rings when compressed air is supplied from the air supply unit 30 via the third air valve 31.

The third air valve 31 is displaced by a biasing member 33 that degenerates or repels when compressed air as a pilot pressure from the second air valve 21 is supplied to or shut off from the input port B. It has. As shown in FIG. 5, when the open / close member S is in the closed state, when compressed air is supplied from the output port A of the first air valve 11 to the input port B of the second air valve 21, the valve body 22 is pressed downward against the urging member 23.

At this time, since the supply pressure port P of the second air valve 21 is closed by the lowered valve body 22, the supply of compressed air from the air supply unit 30 via the first pipeline 6 is shut off. The compressed air as the pilot pressure is not supplied to the input port B of the third air valve 31 connected to the output port A via the third pipe 8. As a result, the valve body 32 of the third air valve 31 is raised by the elastic force of the urging member 33 and the pressure supply port P is closed, so that the compressed air from the air supply unit 30 is shut off. Compressed air is not supplied to the air horn 9, and the air horn 9 does not ring.

On the other hand, as shown in FIG. 6, when the opening / closing member S is in the open state, the valve body 13 of the first air valve 11 blocks the pressure supply port P, so that the output port A of the first air valve 11 The supply of compressed air to the input port B of the second air valve 21 through the second pipe 7 is shut off, and the valve body 22 is raised by the elastic force of the urging member 23, so that the pressure supply port P The compressed air from the air supply unit 30 via the first pipe 6 is supplied into the second air valve 21 and the pilot from the output port A communicating with the pressure supply port P. Compressed air as pressure is supplied into the third air valve 31 from the input port B of the third air valve 31 connected to the output port A via the third pipe line 8. As a result, the valve body 32 of the third air valve 31 descends against the urging member 33 and the supply pressure port P is opened, so that compressed air from the air supply unit 30 is supplied and output. Compressed air is supplied to the air horn 9 from the port A, and the air horn 9 is sounded.

Third embodiment

FIG. 7 shows a state in which an intruder has been detected in the alarm device 1 according to the third embodiment of the present invention. FIG. 8 shows a state in which the alarm operation is canceled in the alarm device 1 according to the third embodiment. 7 and 8, the same parts as those in FIGS. 5 and 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the alarm device 1 according to the third embodiment, the second control valve 20 is connected to the second air valve 21 and the third air valve 31 in the second embodiment. The manual shut-off valve 60 is installed on the downstream side of the air valve 21, and the pressurization display portion 70 b is installed on the upstream side of the manual shut-off valve 60. In FIG. 7 and 8, by installing the manual shut-off valve 60 and the pressure display unit 70, since the "third conduit 8" in FIG. 5 and FIG. 6 is split, "third pipe In addition to changing the sign “path 8a, 8b” and using two “pressurizing display portions 70”, the sign was changed to “pressurizing display portions 70a, 70b”.

The manual shut-off valve 60 is provided with a valve body 62 that is displaced in conjunction with the movement of the manual lever 61. As shown in FIG. 7, when the manual lever 61 is in the open state, the compressed air supplied to the supply pressure port P of the manual shutoff valve 60 is transmitted to the output port A, and further from the output port A to the pipe line Compressed air as pilot pressure is supplied to the pressure supply port B of the third air valve 31 through 8b.

As shown in FIG. 7, when the opening / closing member S is in the open state, the pressure supply port P of the first air valve 11 is shut off and compressed from the output port A to the input port B of the second air valve 21. The air is not supplied, the residual pressure is exhausted from the exhaust port R, the valve body 22 of the second air valve 21 rises due to the elastic force of the urging member 23, opens the pressure supply port P, and outputs Compressed air is supplied from the port A through the third conduit 8a through the pressure supply port P of the manual shutoff valve 60, and from the output port A through the third conduit 8b from the input port B of the third air valve 31. The air is supplied into the third air valve 31.

When compressed air is supplied into the third air valve 3 from the input port B of the third air valve 31, the valve body 32 is pressed downward against the biasing member 33. At this time, since the pressure supply port P of the third air valve 31 is opened by the lowered valve body 32, the compressed air from the air supply unit 30 via the first pipeline 6 is supplied to the pressure supply port P. Is supplied to the air horn 9 from the output port A, and the air horn 9 rings.

On the other hand, as shown in FIG. 8, when the manual lever 61 is in the closed state, the valve body 62 is lowered and the pressure supply port P of the manual shutoff valve 60 is closed. The compressed air is shut off, the residual pressure is exhausted from the exhaust port R, and the compressed air is not supplied to the input port B of the third air valve 31. As a result, the urging member 33 of the third air valve 31 repels and raises the valve body 32 to close the pressure supply port P, so that the compressed air from the air supply unit 30 is not supplied, and the air horn 9 Will not ring.

According to the third embodiment, even if the main pressure shut-off valve 50 is turned on, if the manual shut-off valve 60 is turned off, the air horn 9 can be stopped in an active time zone where it is not desired to ring, and an alarm is issued. Confirmation of the operation of the apparatus 1 and recognition of the open / close state of the open / close member S can be confirmed by visual observation of the pressure display unit 70b.

That is, in the case of FIG. 7 and FIG. 8, it can be visually confirmed by the pressurization display part 70b that compressed air is supplied to the pressurization display part 70b and the opening / closing member S is opened. On the other hand, when the opening / closing member S is closed, the pressure supply port P of the second air valve 21 is shut off, and the compressed air from the air supply unit 30 is not supplied from the output port A to the third pipeline 8a. Therefore, since the display is not supplied to the pressurization display unit 70b, the display is different from the compressed air supply of the pressurization display unit 70b. Thus, it is possible to visually confirm that the opening / closing member S is closed. it can.

In the alarm device 1 of the present invention, the means for confirming whether or not compressed air is supplied is not particularly limited, but preferably, as shown in FIGS. It is recommended to adopt a configuration in which the supply and non-supply can be visually confirmed by the change in color depending on the pressure. That is, in the present invention, as an example of a configuration for visually confirming when compressed air is supplied and not supplied by color change, in FIG. 9, the pressure display unit applied to each of the above embodiments, A cross-sectional view in which compressed air is not supplied to the air pressure circuit is shown, and in FIG. 10, a cross-sectional view in which compressed air is supplied to the air pressure circuit is shown.

The pressure display unit 70 includes a frame 71 having an opening 72 facing the display body 84 (first display body 84a and second display body 84b), a stator 73 integrated with the frame 71, and a rotation shaft 75. And a drum 81 having a first display body 84a and a second display body 84b on the outer surface.

The front end of the partition wall 82 extending in the center direction from the inner surface of the drum 81 is supported by a rotating shaft 75 so that a restoring force is generated with respect to rotational displacement by the action of an elastic member 74 such as a spring. . Two spaces J · K are formed by the inner side surface of the drum 81, the side surface of the stator 73, and the partition wall 82. In one of the spaces J, a supply pressure port P communicating with the first pipeline 6 ( third pipeline 8) is opened, and in the other space K, a port C communicating with the atmosphere side is opened.

With the pressurization display unit 70 configured as described above, in a state where compressed air is not supplied to the first pipe line 6 ( third pipe line 8), the elastic member 74 is restored as shown in FIG. In a state where the first display body 84a faces the opening 72 due to the force, and compressed air is supplied, the space J expands against the elastic force of the elastic member 74 and the space as shown in FIG. K is reduced, the drum 81 is rotated, and the second display body 84 b is exposed from the opening 72.

The first display body 84a and the second display body 84b are not particularly limited so that the supply / non-supply state of the compressed air can be visually confirmed, but preferably the first display body 84a indicating the non-supply. It is recommended that the second display body 84b showing the supply state is colored red.

The present invention is not limited to the above-described embodiments, and can be appropriately modified and implemented within the scope of the common technical idea. For example, the various valves described are exemplified as a piston in which the valve body moves in one direction. However, the present invention is not limited to this, and those that move the valve body in the rotational direction and those in the needle shape are applied. You can also

DESCRIPTION OF SYMBOLS 1 ... Alarm apparatus, 2 ... Air compressor, 3 ... Check valve, 4 ... Air tank, 6 ... 1st pipe line, 7 ... 2nd pipe line, 8 ... 3rd pipe line, 9 ... Air horn, 10 ... Detection part, DESCRIPTION OF SYMBOLS 11 ... 1st air valve, 12 ... Contact piece, 13, 22, 32, 62 ... Valve body, 14, 23, 33, ... Energizing member, 20 ... Control part, 21 ... 2nd air valve, 30 ... Air Supply part 31 ... 3rd air valve 50 ... Original pressure shut-off valve 51, 61 ... Manual lever 60 ... Manual shut-off valve 70, 70a, 70b ... Pressurization display part 71 ... Frame 72 ... Opening part 73 ... Stator, 74 ... Elastic member, 75 ... Rotating shaft, 81 ... Drum, 82 ... Partition wall, 84, 84a, 84b ... Display, A ... Output port, B ... Input port, P ... Supply pressure port, S ... opening and closing member, W ... wall, F ... frame member

Claims (5)

A detector having a first air valve that detects the opening or closing of an opening / closing member provided in an opening of the building so as to be freely opened and closed, and controls the blocking or supply of compressed air to the second air valve; A second air valve from which compressed air is supplied or cut off from the first air valve via the second pipe line, and supply or cut off of compressed air from the first air valve to the second air valve; The air supply unit supplies or shuts off the compressed air from the air supply unit, thereby controlling the ringing of the air, and supplying the compressed air to the detection unit and the control unit via the first pipe. An alarm device comprising a supply unit . Wherein the control unit, the alarm device according to claim 1, characterized in that it comprises a third air valve for controlling the sounding of the air horn compressed air from the second air valve as the pilot pressure further. The alarm device according to claim 1, wherein the air supply unit includes an air tank, a manual shut-off valve provided on the downstream side thereof, and a pressure display unit provided on the downstream side thereof. Wherein the control unit, the alarm device according to claim 1, characterized in that it comprises a pressure display portion and the manual shut-off valve downstream of the second air valve. Alarm device according to claim 1, wherein the first and second conduit, wherein the buried secured is that the wall surface of a building.

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