A bathing safety alarm for the elderly

Abstract

The application discloses an old person bathing safety alarm, and relates to the related field of bathing safety equipment.The application provides an old person bathing safety alarm which can accurately alarm.The old person bathing safety alarm comprises a wall body and a floor, the floor is provided with a mounting plate frame, the mounting plate frame is fixedly connected with a waterproof laser sensor, the waterproof laser sensor is fixedly connected with a protective shell, the protective shell is fixedly connected with an alarm module, the alarm module is electrically connected with the waterproof laser sensor, and the alarm module is electrically connected with a server communication terminal device.When an old person falls down, the waterproof laser sensor sends a signal, the alarm module receives the signal and sends alarm information to the server communication terminal device, so that the relatives of the old person are informed, the old person is prevented from being more seriously hurt, and the waterproof laser sensor can judge the size of an object in a detection range and alarm, so that the old person's family members are prevented from being bothered by false alarms.

Description

Technical Field

[0001] This invention relates to the field of bathing safety equipment, and in particular to a bathing safety alarm for the elderly. Background Technology

[0002] During bathing, poor ventilation, high temperature, and high humidity in the bathroom lead to low oxygen levels, making elderly people prone to dizziness, sudden illness, fainting, or falls. If an elderly person falls and does not receive timely assistance, it may cause more serious injury. Therefore, monitoring the condition of elderly people in the bathroom and promptly alerting authorities when abnormal conditions occur is particularly important.

[0003] Patent publication number CN107689138B discloses a user safety monitoring device and method during bathing. The device includes at least two sets of first detection devices arranged vertically. Each first detection device includes a signal transmitter and a signal receiver opposite to the signal transmitter. When the signal receiver receives a signal transmitted by the signal transmitter, it generates a confirmation signal. When the user is between the signal transmitter and the signal receiver, the signal receiver does not receive the signal transmitted by the signal transmitter. A controller, connected to the signal receiver of each set of first detection devices, is used to acquire the confirmation signal sent by each signal receiver and determine whether the user has fallen based on the acquired confirmation signal.

[0004] The aforementioned device uses three sets of first detection devices vertically mounted on the bathroom wall from top to bottom, corresponding to the upper, middle, and lower parts of the user's body. If, after the user enters the bathroom, the controller fails to receive a signal from the first detection device closest to the ground for three consecutive times, but receives signals from the other two sets, it indicates a fall. The controller then activates the alarm module to alert the user's family to provide timely assistance and prevent injury or even death. However, many elderly people with mobility issues currently use stools to sit while bathing. When they sit and bend over, their slow movements make it easy for the device to receive signals from the upper and middle first detection devices, leading to false alarms and inconvenience for their families. Therefore, a more accurate and reliable elderly bathing safety alarm is needed. Summary of the Invention

[0005] To overcome the current shortcomings of many elderly people with limited mobility who sit on stools in the bathroom to bathe, which can easily cause false alarms due to their slow movements and inconvenience their families, this invention provides an accurate elderly bathing safety alarm.

[0006] Technical solution: A safety alarm for elderly people taking a bath includes a wall and a floor. A shower is installed on the wall, and a mounting bracket is installed on the floor. A waterproof laser sensor is fixed on the mounting bracket, and a protective shell is fixed on the waterproof laser sensor. An alarm module is fixed inside the protective shell. The alarm module is electrically connected to the waterproof laser sensor and to a server communication terminal device.

[0007] Furthermore, it is particularly preferred that the device also includes an electrical measuring component for measuring electricity and triggering an alarm. The electrical measuring component is mounted on the shower and includes a mounting block. A Hall sensor is fixedly connected to the mounting block and is electrically connected to the alarm module.

[0008] Furthermore, it is particularly preferred that the device also includes a sound alarm component that utilizes sound alarms. The sound alarm component is disposed within a protective housing. The sound alarm component includes symmetrically distributed sound-emitting blocks, which are rotatably connected to the protective housing. Symmetrically distributed motors are fixedly mounted within the protective housing. Each of the symmetrically distributed motors is electrically connected to a waterproof laser sensor. Each of the output shafts of the symmetrically distributed motors has a knocking block fixedly mounted on it.

[0009] Furthermore, it is particularly preferred that each of the symmetrically distributed striking blocks is fixed with circumferentially spaced protrusions, and that the protrusions on the symmetrically distributed striking blocks are in contact with and engaged with the adjacent sound-producing blocks.

[0010] Furthermore, it is particularly preferred that the device also includes an oxygen supply assembly for providing oxygen. The oxygen supply assembly is mounted on the waterproof laser sensor and includes an air duct that is fixed to the waterproof laser sensor. The air duct has equally spaced air outlets connected to it. A connecting frame is slidably connected inside the protective housing and is connected to the air duct. A solenoid valve is installed between the connecting frame and the air duct. A compressed air tank is installed on the connecting frame, and a triggering component for opening the solenoid valve is provided on the connecting frame.

[0011] Furthermore, it is particularly preferred that the triggering component includes a switch mounted on the connecting frame, the switch being electrically connected to the solenoid valve, a pressure rod slidably connected inside the protective housing, the pressure rod engaging with the switch, a first spring being installed between the pressure rod and the protective housing, and a pressure block fixedly attached to the knocking block, the pressure block engaging with the pressure rod.

[0012] Furthermore, it is particularly preferred that the pressure bar has an L-shaped structure and the pressure block has a wedge-shaped structure.

[0013] Furthermore, it is particularly preferred that the device also includes a drug storage component for storing drugs. The drug storage component is disposed on the protective housing and includes a placement box, which is rotatably connected to the protective housing. The placement box is fixedly connected to a limit frame, and a limit block is slidably connected to the side of the protective housing near the placement box. The limit block is in contact with the limit frame, and a second spring is installed between the limit block and the protective housing. A connecting plate frame is fixedly connected to the pressure rod, and the connecting plate frame is slidably connected to the limit block.

[0014] Furthermore, it is particularly preferred that the limiting frame has an L-shaped structure and the limiting block has a wedge-shaped structure.

[0015] Furthermore, it is particularly preferred that the device also includes a reinforcing component for detecting whether an elderly person has fallen. The reinforcing component is mounted on a mounting plate and includes equally spaced anti-slip rods that are slidably connected to the mounting plate. Symmetrically distributed trigger rods are fixed to the equally spaced anti-slip rods, and a third spring is installed between each of the symmetrically spaced trigger rods and the mounting plate. Equally spaced triggers are installed inside the mounting plate, and each of the equally spaced triggers contacts and engages with an adjacent trigger rod. A controller is installed on the wall near the protective housing, and each of the equally spaced triggers is electrically connected to the controller. The controller is electrically connected to the alarm module.

[0016] The present invention has the following advantages: 1. When the elderly person falls, the waterproof laser sensor emits a signal, and the alarm module receives the signal and sends the alarm information to the server communication terminal device to notify the elderly person's relatives, so as to avoid the elderly person from suffering greater harm. In addition, the waterproof laser sensor judges the size of the object within the detection range to trigger the alarm, which can avoid false alarms and cause trouble for the elderly person's family. 2. The showerhead is monitored in real time by a Hall sensor to check if it is electrified. When the Hall sensor detects current and sends a signal, the alarm module receives the signal and sends the alarm information to the server communication terminal device to notify the elderly person's relatives to deal with the situation in time and prevent the elderly person from suffering greater harm. 3. The waterproof laser sensor sends a signal, and the controller receives the signal and controls the motor to drive the knocking block to rotate. The knocking block intermittently collides with the sound-emitting block through the protrusion, causing the sound-emitting block to make a sound. This sound alarm can attract the help of relatives or neighbors under the same roof, further ensuring the safety of the elderly. 4. Intermittent oxygen supply is achieved through the repeated contact and separation between the rotating pressure block and the pressure rod, which can provide an appropriate amount of oxygen to the elderly who have fallen, and prevent the elderly from suffering greater harm due to hypoxia; 5. The medication is displayed by opening the box, so that if the elderly person is still able to move after falling down, they can take the medication by themselves. If they are unable to move, their relatives can also get the medication for them in time when they arrive, further ensuring the safety of the elderly person's life. 6. Anti-slip bars are installed to prevent elderly people from slipping. When an elderly person falls, more than half of the trigger will be pressed. When more than half of the trigger is pressed, the controller will send an alarm message to the server communication terminal device to notify the elderly person's relatives and prevent the elderly person from suffering more serious injuries. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the mounting plate frame, waterproof laser sensor, and protective housing of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the waterproof laser sensor, protective housing, and alarm module of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the mounting block and Hall sensor components of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the mounting block and Hall sensor of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the motor, striking block, and sound-generating block components of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the components of the present invention, including the air outlet, air guide tube, and compressed air tank.

[0025] Figure 9 This is a three-dimensional structural diagram of the connecting frame, switch, and solenoid valve components of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the waterproof laser sensor, protective housing, and placement box of the present invention.

[0027] Figure 11 This is a three-dimensional structural diagram of the placement box, limiting block, and limiting frame of the present invention.

[0028] Figure 12 This is a three-dimensional structural diagram of the pressure rod, limiting block, and connecting plate frame of the present invention.

[0029] Figure 13 This is a three-dimensional structural diagram of the mounting plate frame, anti-slip rod, and controller components of the present invention.

[0030] Figure 14 This is a three-dimensional structural diagram of the anti-slip rod, trigger rod, and trigger of the present invention.

[0031] Figure 15 This is a three-dimensional structural diagram of the trigger rod, trigger, and third spring components of the present invention.

[0032] In the diagram: 1. Wall, 11. Shower, 1101. Floor, 12. Mounting bracket, 13. Waterproof laser sensor, 14. Protective housing, 15. Alarm module, 2. Mounting block, 21. Hall sensor, 3. Sound block, 31. Motor, 32. Knocking block, 4. Air outlet, 41. Air duct, 42. Compressed air tank, 43. Connecting frame, 44. Solenoid valve, 45. Switch, 46. Pressure rod, 47. Pressure block, 48. First spring, 5. Placement box, 51. Limiting block, 52. Limiting frame, 53. Second spring, 54. Connecting bracket, 6. Anti-slip rod, 61. Trigger rod, 62. Trigger, 63. Third spring, 64. Controller. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention. Example 1

[0034] A safety alarm for elderly people bathing, referring to Figures 1-4 It includes a wall 1 and a floor 1101. A shower 11 is installed on the wall 1, and a mounting bracket 12 is installed on the floor 1101. A waterproof laser sensor 13 is fixed to the top of the mounting bracket 12. A protective shell 14 is fixed to the right side of the waterproof laser sensor 13. An alarm module 15 is fixed inside the protective shell 14. The alarm module 15 is electrically connected to the waterproof laser sensor 13 and to the server communication terminal equipment.

[0035] In use, the waterproof laser sensor 13 is positioned closest to the ground and can be used to determine the size of objects within its detection range. It is programmed to emit a signal when it detects the size of a human body. When an elderly person enters the detection range of the waterproof laser sensor 13, before they fall, the sensor will only detect their feet and therefore will not emit a signal. When the elderly person falls within the detection range, the sensor will detect their size and emit a signal. Upon receiving the signal, the alarm module 15 sends the alarm information to the server communication terminal to notify the elderly person's family, preventing further injury. The waterproof laser sensor 13's method of determining the size of objects within its detection range to trigger an alarm avoids false alarms and inconvenience to the family. When the elderly person leaves the detection range, the sensor stops emitting signals, and the alarm module 15 ceases sending alarm information. Example 2

[0036] Based on Example 1, referring to Figure 1 , Figure 2 , Figure 5 and Figure 6 It also includes an electrical measuring component, which is used to measure electricity and issue an alarm. The electrical measuring component is installed on the shower 11 and includes a mounting block 2. The mounting block 2 is installed on the shower 11 and a Hall sensor 21 is fixedly connected to the mounting block 2. The Hall sensor 21 is electrically connected to the alarm module 15.

[0037] When an elderly person is taking a bath, if the electric water heater has been used for too long, the heating element, inner tank, and other components may age and become damaged, leading to electric leakage. The Hall sensor 21 monitors in real time whether the shower 11 is energized. When current is generated in the shower 11, the Hall sensor 21 will detect the current and send a signal. After receiving the signal, the alarm module 15 will send the alarm information to the server communication terminal device to notify the elderly person's relatives to deal with it in time and prevent the elderly person from suffering greater harm.

[0038] Reference Figure 1 , Figure 2 and Figure 7 It also includes a sound alarm component, which uses sound to alarm. The sound alarm component is set inside the protective housing 14. The sound alarm component includes two sound-emitting blocks 3, which are rotatably connected inside the protective housing 14. Motors 31 are fixedly connected to both the front and rear sides inside the protective housing 14. Both motors 31 are electrically connected to the waterproof laser sensor 13. A knocking block 32 is fixedly connected to the output shaft of each of the two motors 31. Both knocking blocks 32 have circumferentially evenly spaced protrusions fixedly connected to them. The protrusions on the two knocking blocks 32 are in contact with and cooperate with the adjacent sound-emitting blocks 3.

[0039] When the waterproof laser sensor 13 detects the size of a human body and sends a signal, the controller 64 receives the signal and controls the motor 31 to start. The output shaft of the motor 31 drives the knocking block 32 to rotate. The knocking block 32 intermittently collides with the sound-emitting block 3 through the protrusion, causing the sound-emitting block 3 to emit a sound. This can be used to attract the help of relatives or neighbors under the same roof, further ensuring the safety of the elderly. When the waterproof laser sensor 13 stops sending signals, the controller 64 controls the motor 31 to turn off.

[0040] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9 It also includes an oxygen supply component, which is used to provide oxygen. The oxygen supply component is set on the waterproof laser sensor 13. The oxygen supply component includes a gas guide tube 41, which is fixed to the top of the waterproof laser sensor 13. Both the front and rear ends of the gas guide tube 41 are connected to equally spaced gas outlets 4. A connecting frame 43 is slidably connected to the lower part of the protective shell 14. The connecting frame 43 is connected to the gas guide tube 41. Solenoid valves 44 are installed between both ends of the gas guide tube 41 and the connecting frame 43. Two compressed air tanks 42 are installed on the connecting frame 43. A trigger component is set on the connecting frame 43 to open the solenoid valves 44.

[0041] The triggering component includes a switch 45, which is mounted on the top of the connecting frame 43. The switch 45 is electrically connected to two solenoid valves 44. A pressure rod 46 is slidably connected inside the protective housing 14. The pressure rod 46 is in contact with the switch 45. A first spring 48 is installed between the pressure rod 46 and the protective housing 14. A pressure block 47 is fixedly connected to the bottom of the rear knocking block 32. The pressure rod 46 has an L-shaped structure, and the pressure block 47 has a wedge-shaped structure. The pressure block 47 is in contact with the upper part of the pressure rod 46.

[0042] When the tapping block 32 rotates, it drives the pressure block 47 to rotate. Since the pressure rod 46 has an L-shaped structure, the pressure block 47 contacts the pressure rod 46 during rotation. Because the pressure block 47 has a wedge-shaped structure, it pushes the pressure rod 46 downwards, contacting the switch 45. The first spring 48 is stretched, and the pressure rod 46 presses the switch 45, opening the solenoid valve 44, allowing oxygen from the connecting frame 43 to enter the air guide pipe 41 and be discharged from the air outlet 4. When the pressure block 47 rotates and separates from the pressure rod 46, the first spring 48... Under the action of reset, the pressure rod 46 moves upward to reset, the pressure rod 46 separates from the switch 45, the solenoid valve 44 closes and stops the oxygen supply. In this way, the pressure block 47 rotates and repeatedly contacts and separates from the pressure rod 46 to achieve intermittent oxygen supply, which can provide an appropriate amount of oxygen to the elderly who have fallen, and avoid the elderly from suffering greater damage due to hypoxia. The connecting frame 43 is moved horizontally to remove it. The connecting frame 43 drives the compressed air tank 42 to move out of the protective shell 14, so that the compressed air tank 42 can be replaced. After the replacement is completed, the connecting frame 43 is reset.

[0043] Reference Figure 1 , Figure 2 , Figure 10 , Figure 11 and Figure 12 It also includes a drug storage component for storing drugs. The drug storage component is set on the protective shell 14 and includes a placement box 5. The placement box 5 is rotatably connected to the left side of the protective shell 14. Two limiting frames 52 are fixed to the right side of the placement box 5. The limiting frames 52 have an L-shaped structure. Two limiting blocks 51 are slidably connected to the left side of the protective shell 14. The limiting blocks 51 have a wedge-shaped structure and are in contact with the limiting frames 52. A second spring 53 is installed between the two limiting blocks 51 and the protective shell 14. A connecting plate frame 54 is fixed to the upper part of the pressure rod 46. The connecting plate frame 54 is slidably connected to the two limiting blocks 51.

[0044] When the pressure rod 46 moves up and down repeatedly, it drives the connecting plate frame 54 to move up and down repeatedly. When the connecting plate frame 54 moves downward, it drives the limiting block 51 to move downward, and the second spring 53 is compressed. When the connecting plate frame 54 moves upward, the limiting block 51 moves upward and resets under the action of the second spring 53. When the limiting block 51 separates from the limiting frame 52, the placement box 5 rotates downward and opens due to its own gravity, revealing the medicine. In this way, if the elderly person still has the ability to move after falling, they can take the medicine by themselves. If they have difficulty moving, their relatives can get the medicine for them in time when they arrive, further ensuring the safety of the elderly person's life. After getting the medicine, the placement box 5 can be manually reset. When the limiting frame 52 contacts the limiting block 51, the limiting frame 52 pushes the limiting block 51 downward, and the second spring 53 is compressed. When the right side of the limiting frame 52 passes the limiting block 51, the limiting block 51 moves upward and resets under the action of the second spring 53, locking the limiting frame 52.

[0045] Reference Figure 1 , Figure 2 , Figure 13 , Figure 14 and Figure 15 It also includes a reinforcing component for detecting whether an elderly person has fallen. The reinforcing component is mounted on the mounting frame 12 and includes equally spaced anti-slip rods 6. The equally spaced anti-slip rods 6 are slidably connected to the mounting frame 12. Both ends of the equally spaced anti-slip rods 6 are fixed with trigger rods 61. A third spring 63 is installed between each of the equally spaced trigger rods 61 and the mounting frame 12. Both the front and rear parts of the mounting frame 12 are equipped with equally spaced triggers 62. The equally spaced triggers 62 are in contact with adjacent trigger rods 61. A controller 64 is installed on the right side of the wall 1. Both the front and rear equally spaced triggers 62 are electrically connected to the controller 64. The controller 64 is electrically connected to the alarm module 15.

[0046] When the controller 64 receives more than half of the trigger 62, it sends a signal to the server communication terminal device, transmitting an alarm message. When the elderly person steps on the anti-slip bar 6, the anti-slip bar 6 moves downward due to gravity, which in turn moves the trigger rod 61 downward. The third spring 63 is compressed, and the trigger rod 61 presses the trigger 62. At this time, the trigger 62 is less than half pressed. When the controller 64 receives less than half of the trigger 62, it will not send an alarm message to the server communication terminal device. When the elderly person falls, the trigger 62 will be pressed more than half. The trigger 62 will send a signal, and the controller 64 will send an alarm message to the server communication terminal device after receiving more than half of the signal to notify the elderly person's relatives and prevent the elderly person from suffering further injury. When the elderly person separates from the anti-slip bar 6, the third spring 63 will reset the anti-slip bar 6 and the trigger rod 61, moving them upward to reset. The anti-slip bar 6 is designed to prevent the elderly person from slipping.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A safety alarm device for elderly people bathing, characterized in that, It includes a wall (1) and a floor (1101). A shower (11) is installed on the wall (1). A mounting bracket (12) is installed on the floor (1101). A waterproof laser sensor (13) is fixed on the mounting bracket (12). A protective shell (14) is fixed on the waterproof laser sensor (13). An alarm module (15) is fixed inside the protective shell (14). The alarm module (15) is electrically connected to the waterproof laser sensor (13). The alarm module (15) is electrically connected to the server communication terminal equipment. It also includes an electrical measuring component for measuring electricity and issuing an alarm. The electrical measuring component is installed on the shower (11). The electrical measuring component includes a mounting block (2). The mounting block (2) is installed on the shower (11). A Hall sensor (21) is fixed on the mounting block (2). The Hall sensor (21) is electrically connected to the alarm module (15). It also includes a sound alarm component that utilizes sound alarms. The sound alarm component is set inside the protective housing (14). The sound alarm component includes symmetrically distributed sound-emitting blocks (3). The symmetrically distributed sound-emitting blocks (3) are rotatably connected inside the protective housing (14). The protective housing (14) is fixedly connected to symmetrically distributed motors (31). The symmetrically distributed motors (31) are all electrically connected to the waterproof laser sensor (13). The output shafts of the symmetrically distributed motors (31) are all fixedly connected to a knocking block (32). Each of the symmetrically distributed knocking blocks (32) is fixed with circumferentially spaced protrusions, and the protrusions on the symmetrically distributed knocking blocks (32) are in contact with and cooperate with the adjacent sound-producing blocks (3). It also includes an oxygen supply component for providing oxygen. The oxygen supply component is set on the waterproof laser sensor (13). The oxygen supply component includes a gas duct (41). The gas duct (41) is fixed to the waterproof laser sensor (13). The gas duct (41) is connected to an equally spaced gas outlet (4). A connecting frame (43) is slidably connected inside the protective shell (14). The connecting frame (43) is connected to the gas duct (41). A solenoid valve (44) is installed between the connecting frame (43) and the gas duct (41). A compressed air tank (42) is installed on the connecting frame (43). A trigger component for opening the solenoid valve (44) is provided on the connecting frame (43). The triggering component includes a switch (45), which is mounted on the connecting frame (43). The switch (45) is electrically connected to the solenoid valve (44). A pressure rod (46) is slidably connected inside the protective housing (14). The pressure rod (46) is in contact with the switch (45). A first spring (48) is installed between the pressure rod (46) and the protective housing (14). A pressure block (47) is fixed on the knocking block (32). The pressure block (47) is in contact with the pressure rod (46).

2. The elderly bathing safety alarm device according to claim 1, characterized in that, The pressure bar (46) has an L-shaped structure, and the pressure block (47) has a wedge-shaped structure.

3. A safety alarm for elderly people bathing according to claim 2, characterized in that, It also includes a drug storage component for storing drugs. The drug storage component is set on the protective shell (14). The drug storage component includes a placement box (5). The placement box (5) is rotatably connected to the protective shell (14). The placement box (5) is fixedly connected to a limit frame (52). The protective shell (14) is slidably connected to a limit block (51) on the side near the placement box (5). The limit block (51) is in contact with the limit frame (52). A second spring (53) is installed between the limit block (51) and the protective shell (14). A connecting plate frame (54) is fixedly connected to the pressure rod (46). The connecting plate frame (54) is slidably connected to the limit block (51).

4. A safety alarm for elderly people bathing according to claim 3, characterized in that, The limiting frame (52) has an L-shaped structure, and the limiting block (51) has a wedge-shaped structure.

5. A safety alarm for elderly people bathing according to claim 4, characterized in that, It also includes a reinforcement component for detecting whether an elderly person has fallen. The reinforcement component is set on the mounting plate (12). The reinforcement component includes anti-slip rods (6) with equal spacing. The anti-slip rods (6) with equal spacing are slidably connected to the mounting plate (12). The anti-slip rods (6) with equal spacing are fixedly connected to symmetrically distributed trigger rods (61). A third spring (63) is installed between each of the symmetrically distributed trigger rods (61) and the mounting plate (12). The mounting plate (12) is equipped with triggers (62) with equal spacing. The triggers (62) with equal spacing are in contact with the adjacent trigger rods (61). A controller (64) is installed on the side of the wall (1) near the protective shell (14). The triggers (62) with equal spacing are electrically connected to the controller (64). The controller (64) is electrically connected to the alarm module (15).

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