Earthquake unlocking / locking device and earthquake remote unlocking / locking system

Abstract

Conventional technology for unlocking the doors of disaster prevention warehouses relies too much on mechanical earthquake detection devices, so even if a person with the authority to unlock an individual disaster prevention warehouse approaches it, if the earthquake detection device is not activated due to an earthquake, they cannot unlock it without the appropriate key. Also, since they have no communication functions, they cannot be unlocked from a remote monitoring center. [Solution] The lock can be unlocked by any of the following unlocking operations: (i) unlocking operation using the earthquake sensing device, (ii) unlocking operation using short-range wireless communication such as Wi-Fi or Bluetooth (registered trademark) or disaster prevention administrative radio, and (iii) unlocking operation using a manual key. It can also be unlocked from a remote location. It is also characterized by the addition of an earthquake sensitivity adjustment function.

Description

[Technical field]

[0001] The present invention relates to an earthquake unlocking / locking device and an earthquake remote unlocking / locking system that connects multiple such devices via a communication network. The earthquake unlocking / locking device refers to a device that automatically or manually unlocks / locks the locks of key storage boxes that centrally store keys to open the locks on the entrance doors of disaster prevention warehouses and evacuation shelters of local governments and highway management companies, or the locks on the entrance doors of disaster prevention warehouses and evacuation shelters during an earthquake. The earthquake remote unlocking / locking system refers to a system that allows on-site personnel or monitoring centers to remotely unlock / lock the locks on the doors of disaster prevention warehouses and public evacuation shelters installed in multiple locations during an earthquake, for example, via wireless or internet. [Background technology]

[0002] Most of the disaster prevention warehouses and the like mentioned above are unmanned, and the keys to unlock the locks on the doors are not always used frequently, so when an earthquake occurs, there is a practical problem that the keys cannot be easily found even if one hurriedly searches for the keys to open the locks. In such cases, a mechanical earthquake sensing device that automatically unlocks the locks on the doors of disaster prevention warehouses and the like when it detects an earthquake is currently widely used. There are already many conventional examples of this mechanical earthquake sensing device. For example, Utility Model Registration No. 3144509 (filed May 12, 2008) discloses an earthquake sensing device in which a pendulum weight is always locked while hanging stationary vertically downward, and when an earthquake occurs, the pendulum weight swings to automatically unlock the door. This configuration transitions the door of the disaster prevention warehouse from a locked state to an unlocked state by the mechanical structure of the swinging weight, and since the unlocking operation is performed in an emergency without using any electricity, it has the advantage that it is still very practical, especially during power outages when an earthquake occurs.

[0003] The reason behind the attempt to perform such an unlocking operation entirely with a mechanical structure without using electricity is that at the time of filing, for example around 2008, solar panels were not yet widely available as small, high-performance, and inexpensive alternatives to electric unlocking devices that use commercial power during power outages caused by earthquakes. However, with the subsequent dramatic advances in solar panels and the emergence of small, high-capacity mobile batteries, the need for such unlocking devices to rely entirely on mechanical earthquake sensing devices is now fading. However, the earthquake unlocking / locking device of the present invention also uses the same principle of initiating the unlocking operation by the swinging of a weight.

[0004] Other mechanical earthquake sensing devices, including the above cited references, are all by the same inventor who developed them together with the inventor of the present invention, including Utility Model Registration No. 3145311 (filed January 11, 2008), Patent Publication No. 5405163 (filed March 24, 2009), JP2011-1788 (filed June 22, 2009), Patent Publication No. 5547782 (filed September 18, 2012), Patent Publication No. 5547788 (filed October 25, 2012), and Utility Model Registration No. 3148810 (filed September 18, 2008) by an affiliated company. All of these applications disclose earthquake unlocking devices that use mechanical earthquake sensing devices to perform unlocking operations, and do not disclose any electric earthquake unlocking devices. The reason for this is that at the time of filing, solar panels and mobile batteries were not yet cheap enough, as mentioned above. In addition, a non-patent document such as that shown in Figure 7 describes a commercially available emergency remote unlocking system that allows wireless remote unlocking. However, this is a device dedicated to wireless remote unlocking that does not use a mechanical earthquake detection device, and is different from the present invention.

[0005] The following problems have been pointed out regarding the above-mentioned conventional mechanical unlocking devices. (1) There may be cases where unlocking operations are necessary even if the mechanical earthquake detection device does not detect an earthquake. For example, if a mechanical earthquake detection device is preset to detect an earthquake of less than intensity 5 and unlock the door of a disaster prevention storehouse, it will obviously not be unlocked at intensity 4. However, even in the case of an intensity 4 earthquake, many residents may gather at evacuation sites, and it may be necessary to open the door of the disaster prevention storehouse installed there. In such cases, it may be necessary for a person in charge who rushes to the scene to manually unlock the door when an earthquake actually occurs. However, even in this case, the person in charge cannot unlock the door unless he or she brings a duplicate key. (2) There is no function to check the current unlocked / locked status In the case of a mechanical earthquake sensing device according to the conventional example, when an earthquake of a certain intensity or higher occurs, it is not possible to confirm from the outside, especially from a remote location, whether the disaster prevention warehouse is unlocked in response to the earthquake or remains locked without reacting to the earthquake, because the device does not have a communication function. In other words, when an earthquake of a certain intensity or higher occurs in the mechanical earthquake sensing device according to the conventional technology, the pendulum weight hanging stationary vertically downward in the mechanical earthquake sensing device swings strongly, and it is inferred that the warehouse "will have been automatically unlocked", but the fact that the unlocking operation has definitely been performed cannot be confirmed, for example, from the monitoring center that manages the expressway. For example, the disaster prevention warehouses installed in the service area A where the earthquake occurred and another service area B should both be unlocked, but it is not possible to confirm the current situation of whether they are both really unlocked. This is because the device does not have a sensor or communication means to confirm unlocking. (3) Only forced unlocking function, no forced locking function In the case of a conventional mechanical earthquake sensing device, for example, the door of a disaster prevention warehouse can be forcibly unlocked by using a pre-loaded spring when an earthquake occurs, but the door cannot be forcibly locked manually from the monitoring center because the spring cannot be re-loaded from a remote location to forcibly lock the door. (4) No earthquake sensitivity adjustment function Current mechanical earthquake sensing devices do not have an adjustment mechanism for earthquake sensitivity, and in the conventional example, the length of the hanging shaft of the weight is constant, so the earthquake sensitivity is necessarily constant. In other words, if we explain again the example of disaster prevention warehouses in service areas that are installed in large numbers on expressways, it goes without saying that not all service areas are installed on ground with the same ground strength. Suppose that the highway monitoring center wants to unlock the disaster prevention warehouses only in service areas where an earthquake of intensity 5 or more has occurred. However, if only service area A is installed on hard ground that is not easily shaken, an unreasonable situation will occur. In other words, current mechanical earthquake sensing devices have a uniform length of the hanging shaft, and the weight in the mechanical earthquake sensing device installed in the disaster prevention warehouse of service area A is installed on hard ground, so the weight does not swing sufficiently with an intensity 5 or less, and as a result, the disaster prevention warehouse of service area A installed on hard ground has a defect that it cannot be automatically unlocked. This is because current mechanical earthquake sensing devices do not have an earthquake sensitivity adjustment function that fine-tunes the hanging shaft in advance for service area A, which is on hard ground. The main object of the present invention is to solve the above four problems. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility model registration No. 3144509 [Patent Document 2] Utility model registration No. 3145311 [Patent Document 3] Patent Publication No. 5405163 [Patent Document 4] Patent Publication No. 2011-1788 [Patent Document 5] Patent Publication No. 5547782 [Patent Document 6] Patent Publication No. 5547788 [Patent Document 7] Utility model registration No. 3148810 [Non-patent literature]

[0007] [Non-Patent Document 1] Brochure for "Kagitakarukun" Summary of the Invention [Problem to be solved by the invention]

[0008] The problems to be solved can be summarized into the following four points. (1) Conventional technology for unlocking the doors of disaster prevention warehouses relies too much on mechanical earthquake detection devices, so even if a person who has the authority to unlock an individual disaster prevention warehouse approaches it, if the earthquake detection device is not activated due to an earthquake, he or she cannot unlock the door without the appropriate key. Also, since the system does not have any communication functions, it is not possible to remotely unlock the door from a remote monitoring center. (2) When an earthquake of a certain intensity or greater occurs, the system does not have a function for checking the current status, which enables a remote monitoring center to check whether the mechanical earthquake sensing devices attached to individual disaster prevention warehouses installed in multiple locations, for example, in service areas on expressways, have responded to the earthquake by unlocking the doors or remain locked. (3) It is not possible to forcibly lock the disaster prevention warehouse from a monitoring center located remotely. (4) Current mechanical earthquake detection devices do not have an earthquake sensitivity adjustment function that allows for delicate sensitivity adjustment to detect earthquakes of different intensities. [Means for solving the problem]

[0009] As for the unlocking means other than the mechanical earthquake sensing device that detects an earthquake and performs the unlocking operation as described in the above problem (1), the main method is the automatic unlocking operation by the conventional mechanical earthquake sensing device, but in addition, the following unlocking operations are possible: i) unlocking operation by an authorized person using short-distance communication such as Bluetooth (registered trademark), ii) unlocking operation by an already widely used digital method via disaster prevention radio or the Internet, iii) unlocking operation by an authorized person using a duplicate key, and iv) unlocking operation by a combination lock. The power supply for this is a built-in battery, and of course the battery is constantly charged by a solar panel or a commercial power source depending on the installation location. The unlocking operation by the short-distance communication and the digital method via disaster prevention radio or the Internet is performed using a solenoid that opens and closes the lock electromagnetically near the lock. The solenoid is configured to be opened and closed by an authorized person or a monitoring center. This solenoid can of course perform not only the unlocking operation but also the locking operation described above in (3).

[0010] Furthermore, regarding the current status confirmation function of the above issue (2), in which the unlocked / locked status is confirmed at a remote monitoring center, a sensor for detecting the open / closed status is installed near the lock, and this sensor information is sent to the person in charge or the monitoring center.

[0011] Furthermore, the earthquake sensitivity adjustment function of the above problem (4) is performed by adjusting the length of the axis that hangs the pendulum weight of the mechanical earthquake detection device vertically downward. In other words, if the axis and weight are likened to the relationship between a bolt and a nut, the weight equivalent to the nut is rotated along the axis equivalent to the bolt to change the axis length. According to the law of inertia, if the axis length is long for an earthquake of the same seismic intensity, the weight will swing less, and conversely, if the axis length is short, the weight will swing more for an earthquake of the same seismic intensity. In other words, it is possible to adjust the swing of the weight against an earthquake by the axis length. If the axis length is short, the earthquake sensitivity will increase, and if the axis length is long, the earthquake sensitivity will decrease. Depending on whether the mechanical earthquake detection device is installed in a service area on hard bedrock or on soft ground, it is possible to adjust the axis length in advance to appropriately adjust the earthquake sensitivity to the ground strength of the installation location. Effect of the Invention

[0012] The earthquake unlocking / locking device and the earthquake remote unlocking / locking system using the device of the present invention are configured to detect an earthquake as in the conventional example, and at the same time, to automatically unlock without using a key, primarily using a mechanical earthquake sensing device. The basic operating principle is the same as in the conventional example. However, even if a person who has the authority to unlock a disaster prevention warehouse, etc., does not have the designated key, he / she cannot unlock it. However, in the present invention, it is possible to directly unlock each earthquake unlocking / locking device using a mobile phone or the like using existing short-range communication means. It can also be done from a monitoring center via a communication network. From the monitoring center, it is also possible to forcibly unlock or forcibly lock a large number of disaster prevention warehouses installed in service areas A, B, ... Z, etc., which has the advantage that the on-site person or the monitoring center can reliably control the disaster prevention warehouses.

[0013] On the other hand, in a disaster prevention warehouse equipped with only a mechanical earthquake sensing device according to the conventional example, a remote monitoring center cannot know whether the lock has been automatically unlocked. In other words, the monitoring center can only assume that the lock of the disaster prevention warehouse will be unlocked as a result of the weight of the mechanical earthquake automatic unlocking device swinging at a predetermined width during an earthquake, and cannot confirm that the disaster prevention materials stored in the disaster prevention warehouse have been unlocked and can be taken out. In contrast, the earthquake remote unlocking / locking system of the present invention is equipped with a function for checking the current state of the lock and unlocking status, so that it is possible to confirm that the door of the disaster prevention warehouse has been unlocked even from a remote monitoring center. The monitoring center has the great advantage that anyone can clearly see the unlocked / locked status of the disaster prevention warehouses installed, for example, at service areas A, B, ... Z on a highway, by checking the individual lamps.

[0014] Furthermore, the earthquake sensitivity adjustment function of the mechanical earthquake sensing device, which is not available in the prior art, has the advantage that it can be easily fine-tuned in advance to suit the natural conditions (strength of the ground, etc.) of the installation location.

[0015] In addition, following the recent 2024 Noto Peninsula earthquake, many local governments have been requesting the early installation of such earthquake unlocking / locking devices and earthquake remote unlocking / locking systems. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic diagram of an earthquake unlocking / locking device and an earthquake remote unlocking / locking system according to the present invention. [Diagram 2] FIG. 2 is a right perspective view showing the earthquake sensing device in an earthquake standby state, i.e., in a locked state. [Diagram 3] FIG. 3 is a plan view of the earthquake sensing device with the set handle removed, showing the state when waiting for an earthquake, i.e., when locked. [Figure 4] FIG. 4 is a plan view of the earthquake sensing device with the set handle removed, showing the state when an earthquake occurs, i.e., when the door is unlocked. [Diagram 5] FIG. 5 is a plan view showing the configuration of the lock unit which is a feature of the present invention. [Figure 6] FIG. 6 is a right perspective view of an earthquake sensing device according to a second embodiment to which an earthquake sensitivity adjustment function is added. [Figure 7] FIG. 7 is a catalog copy of a non-patent document, an emergency remote unlocking system that allows wireless remote unlocking. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] 1 is a schematic diagram of an earthquake unlocking / locking device 100 and an earthquake remote unlocking / locking system 400 according to the present invention. For example, an earthquake unlocking / locking device 100 is installed in each of a number of disaster prevention warehouses installed in a service area on a highway, and the earthquake unlocking / locking device 100 unlocks / locks the locks on the doors of the warehouses when an earthquake occurs. Furthermore, a number of these earthquake unlocking / locking devices 100 are connected to a monitoring center 300 via a public communication network 200, constituting an earthquake remote unlocking / locking system 400.

[0018] The earthquake unlocking / locking device 100 is composed of a mechanical earthquake sensing device 10 as per the conventional example, a communication unit 20 that issues instructions to an external public communication network 210 and to each unit within the earthquake sensing device 10, a locking unit 40 connected to the earthquake sensing device 10 by a traction wire 10-5, a current status confirmation unit 30 that detects whether the locking unit 40 is locked or unlocked, a relocking solenoid unit 50 that relocks the earthquake sensing device 10, and a power supply unit 60 which is a commercial power source or a solar panel that supplies power.

[0019] First, a configuration example of the earthquake sensing device 10 constituting the above-mentioned earthquake unlocking / locking device 100 is disclosed in, for example, Patent Publication No. 5547788, so a detailed description will be omitted, but only a brief description of the operation will be given below. FIG. 2 is a right perspective view showing the earthquake sensing device 10 in an earthquake standby state, i.e., locked state. In the figure, by manually rotating the freely rotatable set handle 10-1 clockwise, the stopper arm 10-2 engages with the stopper 10-3, and the device enters an earthquake standby state, i.e., an earthquake sensing mode. Furthermore, FIG. 3 and FIG. 4 are plan views showing the earthquake sensing device 10 with the set handle 10-1 removed, and FIG. 3 shows the earthquake standby state, i.e., locked state, and FIG. 4 shows the state when an earthquake occurs, i.e., unlocked state. The rotating plate 10-4 in FIG. 3 is formed of a circular metal plate, but it may be made of synthetic resin material. The set handle 10-1 is fixed to the rotary plate 10-4 and is rotated by hand to bias the drive spring 10-6 and engage the stopper 10-3 with the claw of the stopper arm 10-2. The left end of the pulling wire 10-5 is fixed to the rotary plate 10-4, and the right end is connected to the lock unit 40 described later. The stopper arm 10-2 is pivotally supported so as to be freely swingable. The drive spring 10-6 is biased by manually rotating the rotary plate 10-4 to the right, and one end of the drive spring 10-6 is attached to the rotary plate 10-4, and the other end is attached to a drive spring lower post 10-7 provided on the base. The locking spring 10-8 biases the stopper arm 10-2 and the stopper 10-3 to engage with each other, and one end of the locking spring 10-8 is attached to the stopper arm 10-2 and the other end is attached to the base. The pendulum weight 10-9 is set to a predetermined weight and is attached to a push-up disk 10-11 via a hanging shaft 10-10. The push-up disk 10-11 tilts in response to the swing of the pendulum weight 10-9. The passive plate 10-12 moves up and down in response to the swing of the push-up disk 10-11, and the push-up rod 10-13 fixed vertically to the passive plate 10-12 pushes up the left end of the stopper arm 10-2.

[0020] The functional operation of the earthquake sensing device 10 will be described below with reference to Fig. 4. The driving spring 10-6 is attached to the outer periphery of the rotating plate 10-4. When an earthquake occurs, the pendulum weight 10-9 attached to the lower end of the fixed-length hanging shaft 10-10 swings, causing the push-up disk 10-11 to push up the passive plate 10-13, which is free to move up and down. Then, the push-up rod 10-14 is pushed up, and the stopper arm 10-2, which is supported by the stopper arm shaft 10-15, disengages from the stopper 10-3. The rotating plate 10-4 is urged to rotate counterclockwise by the driving spring 10-6, so that the pulling wire 10-5, the left end of which is fixed to the rotating plate 10-4, is pulled leftward along the groove provided on the outer periphery to unlock the lock unit 40. That is, when an earthquake occurs, the pendulum weight 10-9 swings, causing the stopper arm 10-2, which is supported by the stopper arm shaft 10-15, to disengage from the stopper 10-3. This causes the pulling wire 10-5 to be pulled leftward along the groove provided on the outer periphery of the rotating plate 10-4, which is urged to rotate counterclockwise by the driving spring 10-6, and opens the lock unit 40. This basic operation itself is the same as that of the prior art.

[0021] Next, the lock unit 40 shown in FIG. 1, which is a feature of the present invention, will be described with reference to FIG. 5. FIG. 5 is a plan view showing the configuration of the lock unit 40. This lock unit 40 is attached to the door of a disaster prevention storehouse, for example, and is locked under normal circumstances. The lock unit 40 has three types of unlocking means: (1) an unlocking operation in which the earthquake sensing device 10 detects an earthquake and pulls the pulling wire 10-5, (2) an unlocking operation in which the unlocking solenoid 40-3 in the lock unit is excited, and (3) an unlocking operation by a manual key (key) inserted into the lock key insertion portion 40-15. This makes it possible for a disaster prevention officer to easily perform the unlocking operation near the disaster prevention storehouse, unlike the unlocking operation only by the mechanical earthquake sensing device 10 according to the conventional example, and also makes it possible to perform the unlocking operation from a remote monitoring center 300.

[0022] The operation of the lock unit 40 will now be described. Regarding the unlocking operation by the earthquake sensing device 10 described above in (1), the earthquake sensing device 10 is first activated and the pulling wire 10-5 is pulled upward. This pulls up the slider 40-4 and compresses the pulling wire separation spring 40-10, disengaging the female engagement portion 40-5 of the slider 40-4 from the male engagement portion 40-13 of the unlocking lever 40-11. This allows the unlocking lever 40-11 to rotate by a biased unlocking spring (not shown), or to be manually rotated to unlock. Details of this specific configuration will be omitted since it is a design item according to the prior art.

[0023] Furthermore, the unlocking operation by the unlocking solenoid 40-3 in (2) above is as follows: (i) first, the switch 40-8 is turned ON by wireless communication or the like according to the conventional example, and the unlocking solenoid 40-3 is actuated, magnetically attracting the slider 40-4, the slider separation spring 40-9 is compressed, the male engagement portion 40-13 of the unlocking lever 40-11 is disengaged from the female engagement portion 40-5 of the slider 40-4, and the unlocking lever 40-11 can be rotated in the unlocking lever rotation direction 40-52. When the unlocking lever 40-11 is rotated, the hinge 40-18 is disengaged from the housing side wall 40-19, and the door can be opened. In this case, the unlocking lever 40-11 can be rotated manually, by a biased spring (not shown), or by remote control using a rotating solenoid (not shown) that rotates the unlocking lever 40-11 from a remote monitoring center 300 via the communication unit 20 shown in FIG. 1, but the specific configuration is a design matter of the conventional technology, so details will be omitted. In addition, the operation of the switch 40-8 that activates the unlocking solenoid 40-3 may be configured so that a disaster prevention officer who rushes to the disaster prevention warehouse operates the communication unit 20 via short-range wireless communication such as Wi-Fi or Bluetooth (registered trademark) from outside the lock unit 40, or the unlocking operation from the monitoring center 300 via the public line network 200 described later. Of course, security measures such as a PIN number are taken. The specific configuration is also a design matter of the conventional technology of short-range wireless communication, so details will be omitted. Furthermore, even when using digital disaster prevention administrative radio (municipal digital broadcasting system, municipal digital mobile communication system), it is possible to remotely issue an unlocking command from the monitoring center 300 via the communication unit 20. Note that the specific configuration of the data format of wireless communication during this remote operation is a design item according to conventional technology, so details will be omitted.

[0024] Furthermore, in the above (3) unlocking operation using a manual key, when an unlocking key is inserted into the locking key insertion section 40-15 and rotated, the locking section cam stopper 40-14 rotates in the locking cam stopper rotation direction 40-54. When the locking section cam stopper 40-14 rotates, the unlocking lever 40-11 is pulled down by the unlocking lever pulling spring 40-16, and the male engagement section 40-13 of the unlocking lever 40-11 is disengaged from the female engagement section 40-5 of the slider 40-4, and the unlocking lever 40-11 can be manually rotated in the unlocking lever rotation direction 40-52. In this way, the present invention allows unlocking by any of the following means: automatic unlocking by the earthquake sensing device 10, unlocking operation from the monitoring center or by short-range wireless communication, and unlocking operation by a manual key, which has the advantage of allowing flexible on-site response.

[0025] Next, the current status confirmation unit 30, which is a feature of the present invention shown in Fig. 1, will be described. As shown in the earthquake remote unlocking / locking system 400 according to the present invention, the current status confirmation unit 30 is used in a remote monitoring center 300 to remotely grasp whether or not the mechanical earthquake sensing device 10 has normally detected an earthquake and the door of a specific disaster prevention warehouse, for example, installed in an earthquake occurrence area, among multiple disaster prevention warehouses installed in remote locations, has normally unlocked the disaster prevention warehouse. Conventional mechanical earthquake sensing devices do not have a communication function or a sensor for detecting the unlocked / locked state, and the monitoring center 300 simply infers that "the earthquake sensing device has normally unlocked the warehouse" when an earthquake occurs, whereas the present invention makes it possible to reliably confirm that the unlocking operation has been performed. For this purpose, as shown in FIG. 5, an open / closed state detection sensor 40-17 is installed near a hinge 40-18 that unlocks / locks the door, and the detection data is sent to the monitoring center 300 via the communication unit 20, and for example, the open / closed state of the door of each disaster prevention warehouse can be visually confirmed by any person in charge by a current status indicator lamp 330 that indicates the open / closed state. When an earthquake occurs, it is possible to visually confirm that the door of the disaster prevention warehouse installed at that site is unlocked by lighting the current status indicator lamp 330. If such visual confirmation confirms that the unlocking operation has not been performed normally, the monitoring center 300 can manually send an unlocking command to the earthquake unlocking / locking device 100 again from the unlocking / locking command unit 320, or issue a command to the disaster prevention person in the disaster prevention warehouse to take a separate action by telephone or the like. In addition, the unlocking operation based on this unlocking command is performed by re-exciting the unlocking solenoid 40-3 of the lock unit 40, as described above in (2).

[0026] On the other hand, when a locking command to switch from the unlocked state to the locked state is manually issued from the unlocking / locking command unit 320 to the earthquake unlocking / locking device 100, instead of an unlocking command from the monitoring center 300, the earthquake unlocking / locking device 100 in the disaster prevention warehouse needs to rotate the rotating plate 10-4 to the right and re-engage the stopper arm 10-2 with the stopper 10-3 in order to reset the earthquake sensing device 10 shown in Fig. 2. For this reason, the monitoring center 300 issues a reset command to the relocking solenoid unit 50 shown in Fig. 1 via the center communication unit 310, the public line network 200, and the communication unit 20 of the earthquake unlocking / locking device 100, and pulls the pulling wire 10-5 to rotate the rotating plate 10-4 to the right in order to forcibly reset the earthquake sensing device 10. As a result, the mechanical earthquake sensing device 10 is again in an earthquake standby state, i.e., in earthquake sensing mode. At the same time as this operation, the lock unit 40 is configured to relock by rotating the locking hinge 40-18 using, for example, a solenoid for relocking the lock unit (not shown). This causes the entire earthquake unlocking / locking device 100 to go back into earthquake standby state, i.e., earthquake sensing mode. Note that the specific detailed configuration for returning the earthquake unlocking / locking device 100 to earthquake standby state, i.e., earthquake sensing mode, is a combination of design items according to conventional technology, so details will be omitted here.

[0027] Next, the power supply of the earthquake unlocking / locking device 100 will be described. Conventionally, in disaster prevention warehouses and other installation locations, unlocking operations were performed only using mechanical earthquake sensing devices, on the assumption that commercial power was likely to be cut off by an earthquake. However, not all commercial power sources necessarily lose power during an earthquake, and with the recent dramatic advances in solar panel technology, the need to assume that there is no power source is fading. Therefore, as shown in Figure 1, this application is configured on the assumption that a power supply unit 60, which is a commercial power source or a solar panel, will be used. As a result, the earthquake unlocking / locking device 100 has the function of a communication terminal electrically connected to the monitoring center 300.

[0028] (Second embodiment of earthquake sensing device 10) FIG. 6 is a right perspective view of an earthquake sensing device 10 with an earthquake sensitivity adjustment function. In this embodiment, an earthquake sensing device 10A according to a second embodiment is disclosed, which has an earthquake sensitivity adjustment function configured with a pendulum weight 10-9A whose position can be changed in the vertical direction along a hanging shaft 10-10A so that the weight position can be changed instead of the pendulum weight 10-9 attached to the lower end of the fixed-length hanging shaft 10-10 in the earthquake sensing device 10 described above. That is, in the earthquake sensing device 10A according to the second embodiment, the pendulum weight 10-9A is adjusted by adjusting the length of the shaft that hangs down vertically. This pendulum weight 10-9A can move up and down along a hanging rod 10-10A whose weight position can be changed. For example, by configuring the shaft and the weight like a bolt and a nut, the vertical position of the weight can be easily changed by rotating the pendulum weight 10-9A. As a result, according to the law of inertia, if the axial length is long, the weight will sway less in the case of an earthquake of the same seismic intensity, and conversely, if the axial length is short, the weight will sway more in the case of an earthquake of the same seismic intensity. In other words, if the axial length is short, the earthquake sensitivity will increase, and if the axial length is long, the earthquake sensitivity will decrease. With this earthquake sensitivity adjustment function, it is possible to adjust the axial length in advance and fine-tune the earthquake sensitivity appropriately according to the ground strength of the installation location, depending on whether the earthquake detection device 10A is installed in a disaster prevention warehouse in a service area on hard bedrock or on soft ground. [Industrial Applicability]

[0029] The earthquake unlocking / locking device 100 of the present invention is primarily configured to automatically unlock without using a key using the mechanical earthquake sensing device 10, but personnel who rush to the disaster prevention storehouse can use short-range communication means such as a mobile phone to directly unlock / lock each disaster prevention storehouse. Also, with the earthquake remote unlocking / locking system 400, earthquake unlocking / locking operations can be performed from the monitoring center 300 via a communication network. In addition, since it is equipped with a function to check the current state of the lock, it is possible to confirm that the doors of the disaster prevention warehouse are unlocked even from a monitoring center in a remote location. In particular, the monitoring center has the great advantage that anyone can clearly grasp the current state of the disaster prevention warehouses installed at service areas A, B, ... Z on a highway by checking the individual lamps to see whether they are unlocked or locked. Furthermore, the earthquake sensitivity adjustment function of the mechanical earthquake detector has the advantage that it can be easily fine-tuned in advance to suit the natural conditions (strength of the ground, etc.) of the installation location. [Explanation of symbols]

[0030] 100 Earthquake unlocking / locking device 400 Earthquake remote lock / unlock system 10Mechanical earthquake detection device 10-5 Towing wire 20 Communications Department 30 Current Status Check Department 40 tablet unit 50 Relocking solenoid 60 power supply section 200 Public Communication Network 300 Monitoring Center 310 Center Communications Department 320 Unlocking / Lock Control Unit 330 Status Indicator Lamp

Claims

1. The earthquake unlocking / locking device performs unlocking / locking operations on a lock on a door when an earthquake occurs or the like, and is composed of a mechanical earthquake sensing device (10), a communication unit (20) that issues instructions to an external public communication network (200) and each unit that constitutes the earthquake sensing device (10), a lock unit (40) connected to the earthquake sensing device (10) by a pulling wire (10-5), a current status confirmation unit (30) that detects whether the lock unit (40) is in a locked or unlocked state, a relocking solenoid unit (50) that relocks the earthquake sensing device (10), and a power supply unit (60) that supplies power to the earthquake unlocking / locking device, The mechanical earthquake sensing device (10) is configured to detect an earthquake by swinging a pendulum weight (10-9) when an earthquake occurs, and to unlock the lock unit (40) by pulling a pulling wire (10-5) fixed to a rotating plate (10-4) which rotates by a drive spring (10-6). The lock unit (40) is configured to be unlocked by any one of the following unlocking operations: (i) an unlocking operation in which the earthquake sensing device (10) detects an earthquake and pulls the pulling wire (10-5); (ii) an unlocking operation in which an unlocking solenoid (40-3) is excited by a command from the outside via short-range wireless communication such as Wi-Fi or Bluetooth (registered trademark) via the communication unit (20) or a disaster prevention administrative radio; or (iii) an unlocking operation using a manual key. The current status confirmation unit (30) is configured to install an open / close state detection sensor (40-17) near a hinge (40-18) that locks / unlocks the door, and the detection data is sent to the outside via the communication unit (20); the relocking solenoid section (50) is configured to forcibly reset the mechanical earthquake sensing device (10) and relock the lock unit (40) when a relocking command is received from the outside via the communication section (20); The earthquake unlocking / locking device (100) is configured so that the power supply unit (60) supplies the necessary driving power to the communication unit (20), the current status confirmation unit (30), the lock unit (40), and the relocking solenoid unit (50).

2. The earthquake unlocking / locking device (100) according to claim 1, further comprising an earthquake sensing device (10A) having an earthquake sensitivity adjustment function added thereto instead of the mechanical earthquake sensing device (10), and the earthquake sensing device (10A) is configured with a pendulum type weight (10-9A) whose position can be changed in the vertical direction along the hanging shaft (10-10A) whose weight position can be changed instead of the pendulum type weight (10-9) attached to the lower end of the hanging shaft (10-10) of a fixed length, and an earthquake sensitivity adjustment function is added to fine-tune the earthquake sensitivity according to the law of inertia by changing the axial length about which the weight swings.

3. The earthquake unlocking / locking device (100) according to claim 1 receives detection data indicating whether the door is unlocked or locked from an open / closed state detection sensor (40-17) of a current state confirmation unit (30) constituting the device via the communication unit (20), a public line network (200), and a center communication unit (310) in a monitoring center (300) at a remote location, and enables visual confirmation of whether the door is unlocked or locked by a current state indicator lamp (330); Furthermore, the earthquake remote unlocking / locking system (400) is characterized in that it is configured such that an unlocking / locking command section (320) of a monitoring center (300) at a remote location issues a reset command to the earthquake unlocking / locking device (100)'s relocking solenoid section (50), thereby forcibly resetting the earthquake sensing device (10) and relocking the lock unit (40).

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