Fire-fighting buzzer alarm device based on pressure detection

Abstract

The utility model relates to a fire-fighting buzzer alarm device based on pressure detection, and belongs to the technical field of fire-fighting alarm devices.The fire-fighting buzzer alarm device comprises a fire hydrant, a shell is fixed to the left side of the fire hydrant, and a pressure sensing assembly for detecting the water pressure in the fire hydrant is arranged in an inner cavity of the shell; an alarm mechanism for improving the alarm effect is arranged in the inner cavity of the shell and located below the pressure sensing assembly. According to the fire-fighting buzzer alarm device based on pressure detection, the shell can protect the pressure sensing assembly and the alarm mechanism, it is guaranteed that the pressure sensing assembly and the alarm mechanism are not prone to being corroded by rainwater and oxidized by sunlight, and therefore the service life of the whole device can be greatly prolonged; the telescopic design can ensure that the alarm is obvious enough and the alarm effect is ensured, the device can ensure the service life and the alarm effect, and the service life of a single alarm device can be greatly prolonged, so that the replacement frequency is reduced, and the overall cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire alarm devices, in particular to a fire buzzer alarm device based on pressure detection. Background Art

[0002] As an important part of the urban fire protection system, the normal operation of fire hydrants is of great significance for timely extinguishing fires and protecting people's lives and property. However, traditional fire hydrant management methods have many problems, such as the inability to monitor the status of fire hydrants in real time, the inability to detect and handle faults in a timely manner, etc. Based on the above background, the development of an intelligent device that can monitor the water pressure and large pressure fluctuations of fire hydrants in real time and alarm has become an urgent market demand. With the continuous development of Internet of Things technology, fire hydrant pressure detection and alarm devices are also developing in a more intelligent and networked direction.

[0003] For example, a Chinese patent (publication number: CN205557695U) discloses a new type of automatic alarm fire hydrant, including a fire hydrant body, a flashing light for alarm installed on the top of the fire hydrant body; a pipe extends below the bottom of the valve core inside the fire hydrant body, and an electric contact pressure gauge is installed on the pipe to monitor the pressure value inside the fire hydrant body; if the pressure value is out of the normal range and reaches the critical point, the flashing light installed on the top of the fire hydrant body will automatically alarm, and an electric contact temperature gauge is installed on the fire hydrant body. When the temperature inside the hydrant body is lower than 5°C, the solenoid valve is automatically opened to drain water, and the water flows into the water collection channel. The new type of automatic alarm fire hydrant provided by this utility model through pressure value and temperature detection ensures the normal water supply of the fire hydrant, avoids delays in disaster relief and rescue, and causes unnecessary losses; the fire hydrant has a reasonable structure, a wide range of uses, and is easy to implement.

[0004] However, the service life of this device is not long enough. Since a flashing light is installed on the top of the fire hydrant, the flashing light is inevitably eroded by external environment such as rain and sunlight for a long time, which can easily cause the flashing light to be damaged and further cause the alarm to fail. Therefore, a fire buzzer alarm device based on pressure detection is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a fire buzzer alarm device based on pressure detection, which has the advantage of a long service life and solves the problem of the device being short of durability.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a fire buzzer alarm device based on pressure detection, comprising a fire hydrant, a shell fixed to the left side of the fire hydrant, an inner cavity of the shell provided with a pressure sensing component for detecting the water pressure in the fire hydrant, and an alarm mechanism for improving the alarm effect is provided in the inner cavity of the shell and below the pressure sensing component;

[0007] The alarm mechanism includes a servo motor, a threaded rod, two moving parts, two hinged rods and a reminder device. The output shaft of the servo motor is fixed to the threaded rod. The outer surface of the threaded rod is provided with two moving parts. The left sides of the two moving parts are hinged to the hinged rod, and the side of the two hinged rods away from the moving parts is hinged to the reminder device.

[0008] By adopting this technical solution, the alarm mechanism can sound an alarm in a timely manner to remind staff and pedestrians. At the same time, the shell and the alarm mechanism cooperate to greatly increase the service life of the alarm mechanism.

[0009] Furthermore, the pressure sensing component includes a connecting tube and a pressure sensor. The connecting tube is fixedly connected to the inner side of the fire hydrant, and the side of the connecting tube away from the fire hydrant is fixedly connected to the pressure sensor. A battery pack is fixed to the rear side of the pressure sensor.

[0010] By adopting this technical solution, the connecting pipe is used to transmit the water pressure in the fire hydrant to the pressure sensor, thereby further realizing the monitoring of the water pressure.

[0011] Furthermore, a stabilizing plate is fixed to the left side of the pressure sensor, the left side of the stabilizing plate is fixed to the left side wall of the inner cavity of the shell, and the front side of the pressure sensor is inlaid with an instrument panel.

[0012] By adopting this technical solution, the stabilizing plate can improve the stability of the pressure sensor and further improve the stability and service life of the pressure sensing component.

[0013] Furthermore, a partition is fixed between the left and right side walls of the inner cavity of the shell, and the partition is located below the pressure sensing component.

[0014] By adopting this technical solution, the partition can separate the pressure sensing component and the alarm mechanism, and the separated design can effectively improve the overall service life of the device.

[0015] Furthermore, each of the moving parts includes a threaded barrel, two stabilizing plates, a hinge shaft, a connecting block and a limit block. The inner side of the threaded barrel is threadedly connected to the threaded rod, the top of the threaded barrel is fixed to the two stabilizing plates, the two stabilizing plates are fixed to the hinge shaft, the bottom of the threaded barrel is fixed to the connecting block, and the bottom of the connecting block is fixed to the limit block.

[0016] By adopting this technical solution, the limiting block can limit the threaded barrel, and further cooperate with the threaded rod to realize the overall movement of the moving part.

[0017] Furthermore, two sections of external threaded strips with opposite rotation directions are fixed on the threaded rod, and internal threaded strips are fixed on the inner sides of the two threaded barrels. The two internal threaded strips are respectively adapted to the two external threaded strips, and the top of the threaded rod is rotatably connected to the partition through a bearing.

[0018] By adopting this technical solution, the external thread strips with opposite rotation directions at both ends can ensure that the two moving parts move in opposite directions under the driving action of the threaded rod in one direction.

[0019] Furthermore, a limiting groove is provided on the right side wall of the inner cavity of the shell, and the two limiting blocks are both adapted to the limiting groove.

[0020] By adopting this technical solution, the limiting groove and the limiting block cooperate with each other, which can improve the stability of the limiting block and enable the limiting block to better limit the threaded barrel.

[0021] Furthermore, the reminder device includes a protective plate, a buzzer alarm, an alarm light and a hinge block, the hinge block is hinged to two hinge shafts, the left side of the hinge block is fixed to the buzzer alarm, the left side of the buzzer alarm is fixed to the protective plate, the left side of the protective plate and located outside the buzzer alarm is fixed to the alarm light, and the protective plate is flush with the left side wall of the outer shell.

[0022] By adopting this technical solution, the protection plate and the outer shell cooperate to achieve a relatively closed isolation effect, thereby preventing rainwater from eroding the alarm mechanism and increasing the service life of the alarm mechanism.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] The fire buzzer alarm device based on pressure detection has a shell that can protect the pressure sensing component and the alarm mechanism, ensuring that the pressure sensing component and the alarm mechanism are not easily eroded by rain and oxidized by sunlight, thereby greatly improving the overall service life of the device. The retractable design can ensure that the alarm is obvious enough to ensure the alarm effect. The device can not only ensure the service life but also take into account the alarm effect, and can greatly improve the service life of a single alarm device, thereby reducing the replacement frequency and saving overall costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a diagram showing the connection between the housing and the fire hydrant of the present utility model;

[0027] Figure 3 This is a three-dimensional appearance diagram of the moving part of the utility model.

[0028] In the figure: 1. Fire hydrant; 2. Housing; 3. Pressure sensing component; 301. Connecting pipe; 302. Pressure sensor; 4. Alarm mechanism; 401. Servo motor; 402. Threaded rod; 403. Moving part; 4031. Threaded barrel; 4032. Stabilizing plate; 4033. Articulated shaft; 4034. Connecting block; 4035. Limiting block; 404. Articulated rod; 405. Reminder device. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1 to 2 In this embodiment, the fire buzzer alarm device based on pressure detection includes a fire hydrant 1. A shell 2 is fixed to the left side of the fire hydrant 1. The shell 2 can provide sufficient protection for the pressure sensing component 3 and the alarm mechanism 4, further improving the overall service life of the device. The inner cavity of the shell 2 is provided with a pressure sensing component 3 for detecting the water pressure in the fire hydrant 1. The inner cavity of the shell 2 and below the pressure sensing component 3 are provided with an alarm mechanism 4 for improving the alarm effect.

[0031] In addition, the pressure sensing component 3 includes a connecting tube 301 and a pressure sensor 302. The connecting tube 301 is fixedly connected to the inner side of the fire hydrant 1, and the side of the connecting tube 301 away from the fire hydrant 1 is fixedly connected to the pressure sensor 302. The connecting tube 301 can transmit the water pressure in the fire hydrant 1 to the pressure sensor 302, further enabling the pressure sensor 302 to smoothly monitor the water pressure in the fire hydrant 1. A battery pack is fixed to the rear side of the pressure sensor 302, and the battery pack can provide energy for the device.

[0032] It should be further explained that a stabilizing plate is fixed to the left side of the pressure sensor 302, which can improve the stability of the pressure sensor 302. The left side of the stabilizing plate is fixed to the left side wall of the inner cavity of the shell 2. A dashboard is embedded in the front of the pressure sensor 302. The dashboard embedded in the pressure sensor 302 can facilitate the staff to observe the water pressure, so as to discuss countermeasures more quickly. A partition is fixed between the left and right side walls of the inner cavity of the shell 2, and the partition is located below the pressure sensing component 3.

[0033] In this embodiment, the pressure sensing component 3 can monitor the water pressure in real time, and can quickly determine the water pressure in conjunction with the instrument panel, so as to take corresponding measures. The pressure sensing component 3 and the alarm mechanism 4 are then protected by the outer shell 2, which can effectively improve the overall service life.

[0034] Please refer again Figures 1 to 2 and Figure 3 In order to fully protect the alarm device, the alarm mechanism 4 in this embodiment includes a servo motor 401, a threaded rod 402, two moving parts 403, two hinged rods 404 and a reminder device 405. The output shaft of the servo motor 401 is fixed to the threaded rod 402. The outer surface of the threaded rod 402 is provided with two moving parts 403. The left sides of the two moving parts 403 are hinged to the hinged rod 404. By hingedly connecting the moving part 403 to the hinged rod 404, the power on the moving part 403 can be smoothly transmitted to the reminder device 405, thereby further realizing the movement of the reminder device 405. The two hinged rods 404 are hinged to the reminder device 405 on the side away from the moving part 403.

[0035] Furthermore, the moving part 403 includes a threaded barrel 4031, two stabilizing plates 4032, an articulated shaft 4033, a connecting block 4034 and a limit block 4035. The inner side of the threaded barrel 4031 is threadedly connected to the threaded rod 402, the top of the threaded barrel 4031 is fixed to the two stabilizing plates 4032, and the two stabilizing plates 4032 are fixed to the articulated shaft 4033. The stabilizing plates 4032 provide support for the articulated shaft 4033, and the articulated shaft 4033 is then articulated to the articulated rod 404 to further improve the stability of the articulation. The bottom of the threaded barrel 4031 is fixed to the connecting block 4034, and the bottom of the connecting block 4034 is fixed to the limit block 4035. The limit block 4035 can smoothly limit the threaded barrel 4031 through the power transmitted by the connecting block 4034.

[0036] It should be noted that two sections of external threaded strips with opposite rotation directions are fixed on the threaded rod 402, and internal threaded strips are fixed on the inner sides of the two threaded barrels 4031. The two internal threaded strips are respectively adapted to the two external threaded strips. The two sections of external threaded strips with opposite rotation directions can ensure that under the same power source, the two moving parts 403 can move in opposite directions, thereby realizing the movement of the reminder device 405. The top of the threaded rod 402 is rotatably connected to the partition through a bearing, and a limiting groove is provided on the right side wall of the inner cavity of the shell 2. The two limit blocks 4035 are adapted to the limit groove. The limit groove can improve the stability of the limit block 4035 and further improve the smooth operation of the reminder device 405.

[0037] It can be known that the reminder device 405 includes a protective plate, a buzzer alarm, an alarm light and a hinge block. The hinge block is hinged to the two hinge shafts 4033. The left side of the hinge block is fixed to the buzzer alarm, the left side of the buzzer alarm is fixed to the protective plate, and the left side of the protective plate and the outside of the buzzer alarm are fixed to the alarm light. Through the cooperation of the buzzer alarm and the alarm light, the alarm effect can be fully guaranteed and play a good reminder role. The protective plate is flush with the left side wall of the outer shell 2. The protective plate cooperates with the outer shell 2 to protect the internal device from being affected by the external environment.

[0038] In this embodiment, the overall life of the device can be effectively improved through the joint action of the protective plate and the shell 2. The servo motor 401 controls the reminder device 405 to retract. When an alarm is required, it extends to the outside, and retracts to the inside when it is not needed.

[0039] It can be understood that the water pressure can be monitored in real time through the pressure sensing component 3. When the water pressure exceeds the rated value, the alarm mechanism 4 is controlled to alarm, and the device can be extended and retracted by driving the servo motor 401. While ensuring the alarm effect, the service life of the device can be effectively improved.

[0040] The electrical components mentioned in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The power supply provided by the battery is also common knowledge in this field. Moreover, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0041] The working principle of the above embodiment is:

[0042] The pressure sensor 302 monitors the water pressure in the fire hydrant 1 in real time. When the water pressure in the fire hydrant 1 exceeds a predetermined critical value, the pressure sensor 302 will activate the reminder device 405 and start the servo motor 401. The servo motor 401 rotates, driving the threaded rod 402 to rotate. Under the joint action of the threaded rod 402 and the limit block 4035, the two moving parts 403 will begin to approach each other, thereby prompting the two hinge shafts 4033 to rotate around the connecting block 4034, driving the reminder device 405 to move outward. At this time, the buzzer alarm and the alarm light will be exposed to the outside, thereby reminding staff and pedestrians that there is an abnormality here. The device has a long service life and can take into account the alarm effect. By greatly improving the service life of a single alarm device, the replacement frequency is reduced, saving overall costs.

Claims

1. A fire buzzer alarm device based on pressure detection, comprising a fire hydrant (1), characterized in that: A shell (2) is fixed to the left side of the fire hydrant (1); a pressure sensing component (3) for detecting the water pressure in the fire hydrant (1) is provided in the inner cavity of the shell (2); and an alarm mechanism (4) for improving the alarm effect is provided in the inner cavity of the shell (2) and below the pressure sensing component (3); The alarm mechanism (4) comprises a servo motor (401), a threaded rod (402), two moving parts (403), two hinged rods (404) and a reminder device (405). The output shaft of the servo motor (401) is fixed to the threaded rod (402). The outer surface of the threaded rod (402) is provided with two moving parts (403). The left sides of the two moving parts (403) are hinged to the hinged rod (404). The sides of the two hinged rods (404) away from the moving parts (403) are hinged to the reminder device (405).

2. The fire buzzer alarm device based on pressure detection according to claim 1, characterized in that: The pressure sensing assembly (3) comprises a connecting pipe (301) and a pressure sensor (302); the connecting pipe (301) is fixedly connected to the inner side of the fire hydrant (1); the side of the connecting pipe (301) away from the fire hydrant (1) is fixedly connected to the pressure sensor (302); and a battery pack is fixed to the rear side of the pressure sensor (302).

3. The fire buzzer alarm device based on pressure detection according to claim 2, characterized in that: A stabilizing plate is fixed to the left side of the pressure sensor (302), and the left side of the stabilizing plate is fixed to the left side wall of the inner cavity of the housing (2). The front side of the pressure sensor (302) is inlaid with an instrument panel.

4. The fire buzzer alarm device based on pressure detection according to claim 1, characterized in that: A partition is fixed between the left and right side walls of the inner cavity of the shell (2), and the partition is located below the pressure sensing component (3).

5. The fire buzzer alarm device based on pressure detection according to claim 4, characterized in that: Each of the movable parts (403) comprises a threaded barrel (4031), two stabilizing plates (4032), a hinge shaft (4033), a connecting block (4034) and a limiting block (4035); the inner side of the threaded barrel (4031) is threadedly connected to the threaded rod (402); the top of the threaded barrel (4031) is fixed to the two stabilizing plates (4032); the hinge shaft (4033) is fixed between the two stabilizing plates (4032); the bottom of the threaded barrel (4031) is fixed to the connecting block (4034); and the bottom of the connecting block (4034) is fixed to the limiting block (4035).

6. The fire buzzer alarm device based on pressure detection according to claim 5, characterized in that: Two sections of external threaded strips with opposite rotation directions are fixed on the threaded rod (402), and internal threaded strips are fixed on the inner sides of the two threaded barrels (4031). The two internal threaded strips are respectively adapted to the two external threaded strips. The top of the threaded rod (402) is rotatably connected to the partition via a bearing.

7. The fire buzzer alarm device based on pressure detection according to claim 5, characterized in that: A limiting groove is provided on the right side wall of the inner cavity of the shell (2), and both limiting blocks (4035) are adapted to the limiting groove.

8. The fire buzzer alarm device based on pressure detection according to claim 5, characterized in that: The reminder device (405) comprises a protective plate, a buzzer alarm, an alarm light and a hinge block, wherein the hinge block is hinged to two hinge shafts (4033), the left side of the hinge block is fixed to the buzzer alarm, the left side of the buzzer alarm is fixed to the protective plate, the left side of the protective plate and located outside the buzzer alarm is fixed to the alarm light, and the protective plate is flush with the left side wall of the housing (2).

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