CN220569252U

CN220569252U - Fire alarm

Info

Publication number: CN220569252U
Application number: CN202322300482.XU
Authority: CN
Inventors: 任晓栋; 束云
Original assignee: Shanghai Keating Communication Technology Co ltd
Current assignee: Shanghai Keating Communication Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-08
Anticipated expiration: 2033-08-25

Abstract

The utility model discloses a fire alarm, and belongs to the technical field of fire protection. The fire alarm comprises a protective shell, a fluid smoke cover, a main body fixing shell and a lower shell fixing piece, wherein the fluid smoke cover is arranged at the top of the main body fixing shell; the circuit board is arranged in the accommodating groove, and is provided with an MCU main control module, a narrow-band Internet of things communication module, a photoelectric smoke sensor, a temperature and humidity detection module, a buzzer alarm and an infrared receiver, wherein the narrow-band Internet of things communication module, the photoelectric smoke sensor, the temperature and humidity detection module, the buzzer alarm and the infrared receiver are all electrically connected with the MCU main control module, and the infrared receiver can control the buzzer alarm to stop alarming through the MCU main control module; and the remote controller is used for being in communication connection with the infrared receiver. The utility model can quickly turn off the smoke alarm without climbing after the fire hazard is eliminated.

Description

Fire alarm

Technical Field

The utility model relates to the technical field of fire protection and security, in particular to a fire alarm.

Background

Fire alarm, namely fire smoke alarm, smoke sensor, etc., is a smoke detector based on the principle that smoke particles scatter, absorb (or shelter) light. The smoke particle is used for absorbing incident light and emitting light to the surrounding with the same wavelength when entering a sensitive space surrounded by the maze, and after part of scattered light is received by the infrared photodiode, the impedance of the light receiving element is changed to form photocurrent, so that the function of converting a smoke signal into an electric signal is realized, and when the photocurrent is larger to a certain extent, the detector emits an alarm signal, so that the smoke particle is widely applied to the fields of household gas leakage, mine gas detection and other chemical production.

The existing household smoke alarm is installed on the roof, after fire danger is eliminated, people are required to climb a ladder to manually close the smoke alarm, and particularly the old people with inconvenient actions at home climb to the roof, so that huge potential safety hazards exist.

For this reason, it is desirable to provide a fire alarm to solve the above problems.

Disclosure of Invention

The utility model aims to provide a fire alarm which can be quickly turned off without climbing after a fire hazard is eliminated.

In order to achieve the above object, the following technical scheme is provided:

a fire alarm, comprising:

the protective housing, including fluid smog cover, main part fixed shell and inferior valve mounting, the said fluid smog cover sets up in the top of the said main part fixed shell, the said inferior valve mounting sets up in the bottom of the said main part fixed shell, the said inferior valve mounting is concave to have holding tanks;

the circuit board is arranged in the accommodating groove, the MCU main control module, the narrow-band internet of things communication module, the photoelectric smoke sensor, the temperature and humidity detection module, the buzzer alarm and the infrared receiver are arranged on the circuit board, the narrow-band internet of things communication module, the photoelectric smoke sensor, the temperature and humidity detection module, the buzzer alarm and the infrared receiver are electrically connected with the MCU main control module, and the infrared receiver can control the buzzer alarm to stop alarming through the MCU main control module;

and the remote controller is used for being in communication connection with the infrared receiver.

As an alternative scheme of the fire alarm, the lower shell fixing piece is provided with a limit groove, the battery is installed in the limit groove, the circuit board is provided with a positive and negative electrode wiring module, the positive and negative electrode wiring module is electrically connected with the MCU main control module, and the battery is electrically connected with the positive and negative electrode wiring module through a lead.

As an alternative scheme of the fire alarm, the circuit board is also provided with an LED indicator lamp, and the LED indicator lamp is electrically connected with the MCU main control module.

As an alternative scheme of the fire alarm, a clamping hook part is arranged at the bottom of the fluid smoke cover, a clamping groove is formed in the top of the main body fixing shell, and the clamping hook part is clamped in the clamping groove.

As an alternative scheme of the fire alarm, a plurality of clamping hook portions are arranged at intervals along the circumferential direction of the fluid smoke cover, a plurality of clamping grooves are arranged at intervals along the circumferential direction of the main body fixing shell, and a plurality of clamping hook portions are arranged in one-to-one correspondence with a plurality of clamping grooves.

As an alternative scheme of the fire alarm, a plurality of first holes are annularly arranged at intervals on the top of the main body fixing case.

As an alternative of the fire alarm, the bottom of the accommodating groove is provided with a plurality of second holes.

As an alternative scheme of the fire alarm, the inner side wall of the main body fixing shell is provided with a first connecting column with a first connecting hole, the inner side wall of the lower shell fixing piece is provided with a second connecting column with a second connecting hole, and a bolt penetrates through the second connecting hole to be in threaded connection with the first connecting hole.

As an alternative to the fire alarm, the plurality of first connection posts and the plurality of second connection posts are all distributed in a triangle shape.

As an alternative to the fire alarm, a plurality of reinforcing plates are provided at intervals on the inner side wall of the main body fixing case.

Compared with the prior art, the utility model has the beneficial effects that:

according to the fire alarm provided by the utility model, the circuit board is arranged in the accommodating groove of the lower shell fixing piece, and smoke can enter the main body fixing shell through the fluid smoke cover, wherein the narrow-band Internet of things communication module, the photoelectric smoke sensor, the temperature and humidity detection module, the buzzer alarm and the infrared receiver on the circuit board are electrically connected with the MCU main control module, and the MCU main control module is in charge of collecting data of the smoke sensor and the temperature and humidity sensor; the running state of the processing equipment is judged through logic, and data is sent to a server through a narrow-band internet of things communication module; alarming through a buzzer alarm; the photoelectric smoke sensor detects the smoke concentration in the environment, and when a fire disaster occurs, the smoke sensor informs the MCU main control module to send an alarm signal when detecting that the smoke concentration in the environment exceeds a certain degree, and the MCU main control module sends the alarm information to the network server through the narrow-band Internet of things communication module; the narrowband internet of things communication module sends the detected information such as smoke concentration, ambient temperature, humidity and the like to the network server in real time; the temperature and humidity detection module periodically detects temperature and humidity changes in the environment, and when a fire disaster or a fault is detected, an audible alarm is sent out. After the fire disaster is eliminated, a user does not need to climb a ladder, and only needs to aim the remote controller at the infrared receiver, the buzzer alarm can be controlled by the MCU main control module to stop alarming.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram illustrating an assembly of a fire alarm according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a fire alarm according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a lower shell fixing member according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a first view angle of a circuit board according to an embodiment of the utility model;

fig. 5 is a schematic structural diagram of a second view angle of a circuit board according to an embodiment of the utility model;

fig. 6 is a schematic structural view of a first view of a main body fixing case according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a second view of the main body fixing case according to an embodiment of the present utility model.

Reference numerals:

1. a fluid smoke cover; 2. a main body fixing case; 3. a lower case fixing member; 4. a circuit board;

11. a hook part;

21. a clamping groove; 22. a first hole; 23. a first connection post; 231. a first connection hole; 24. a reinforcing plate;

31. a receiving groove; 32. a limit groove; 33. a second hole; 34. a second connection post; 341. a second connection hole;

41. an MCU main control module; 42. a narrowband internet of things communication module; 43. a photoelectric smoke sensor; 44. a temperature and humidity detection module; 45. a buzzer alarm; 46. an infrared receiver; 47. positive and negative electrode wiring modules; 48. LED indicator light.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In order to eliminate the fire hazard, the smoke alarm can be quickly turned off without climbing, so that the safety of the old in the home is ensured, and the embodiment provides a fire alarm, and the specific contents of the embodiment are described in detail below with reference to fig. 1 to 7.

In the present embodiment, as shown in fig. 1 to 5, the fire alarm includes a protective case, a circuit board 4, and a remote controller. Wherein, the protective housing includes fluid smog cover 1, main part fixed shell 2 and inferior valve mounting 3, and fluid smog cover 1 sets up in the top of main part fixed shell 2, and inferior valve mounting 3 sets up in the bottom of main part fixed shell 2, and inferior valve mounting 3 concave accommodation groove 31 that is equipped with. The circuit board 4 is arranged in the accommodating groove 31, and the circuit board 4 is provided with an MCU main control module 41, a narrow-band Internet of things communication module 42, a photoelectric smoke sensor 43, a temperature and humidity detection module 44, a buzzer alarm 45 and an infrared receiver 46, wherein the infrared receiver 46 is used for receiving a switching signal of a remote controller. The narrowband internet of things communication module 42, the photoelectric smoke sensor 43, the temperature and humidity detection module 44, the buzzer alarm 45 and the infrared receiver 46 are all electrically connected with the MCU master control module 41, and the infrared receiver 46 can control the buzzer alarm 45 to stop alarming through the MCU master control module 41. The remote control is adapted to be communicatively coupled to the infrared receiver 46.

In short, according to the fire alarm provided by the utility model, the circuit board 4 is installed in the accommodating groove 31 of the lower shell fixing piece 3, and smoke can enter the main body fixing shell 2 through the fluid smoke cover 1, wherein the narrow-band Internet of things communication module 42, the photoelectric smoke sensor 43, the temperature and humidity detection module 44, the buzzer alarm 45 and the infrared receiver 46 on the circuit board 4 are electrically connected with the MCU main control module 41, and the MCU main control module 41 is responsible for collecting the data of the smoke sensor and the temperature and humidity sensor; and the running state of the processing equipment is judged through logic, and data is sent to a server through the narrow-band internet of things communication module 42; alarm is sent out through a buzzer alarm 45; the photoelectric smoke sensor 43 detects the smoke concentration in the environment, and when a fire disaster occurs, the smoke sensor informs the MCU main control module 41 to send an alarm signal when detecting that the smoke concentration in the environment exceeds a certain degree, and the MCU main control module 41 sends the alarm information to the network server through the narrow-band Internet of things communication module 42; the narrowband internet of things communication module 42 sends the detected information of smoke concentration, ambient temperature, humidity and the like to the network server in real time; the temperature and humidity detection module 44 periodically detects changes in temperature and humidity in the environment and sounds an alarm when a fire or fault is detected. After the fire disaster is eliminated, the user does not need to climb the ladder, and can control the buzzer alarm 45 to stop alarming through the MCU main control module 41 only by aiming the remote controller at the infrared receiver 46.

Further, as shown in fig. 2 and 3, the lower shell fixing member 3 is provided with a limit groove 32, a battery is mounted in the limit groove 32, the circuit board 4 is provided with a positive and negative electrode wiring module 47, the positive and negative electrode wiring module 47 is electrically connected with the MCU main control module 41, and the battery is electrically connected with the positive and negative electrode wiring module 47 through a wire. The battery is arranged in the limit groove 32 of the lower shell fixing piece 3, so that the battery can stably supply power to the circuit board 4, and the normal operation of the circuit board 4 is ensured.

Further, an LED indicator 48 is further disposed on the circuit board 4, and the LED indicator 48 is electrically connected to the MCU main control module 41. And an LED indicator 48 is used to indicate the device operating status.

Further, as shown in fig. 2, 6 and 7, the bottom of the fluid smoke mask 1 is provided with a hook portion 11, the top of the main body fixing case 2 is provided with a clamping groove 21, and the hook portion 11 is clamped in the clamping groove 21. The fluid smoke mask 1 is firmly connected with the main body fixing shell 2 through the connection of the clamping hook part 11 and the clamping groove 21.

Further, the plurality of hook portions 11 are arranged at intervals along the circumferential direction of the fluid smoke mask 1, the plurality of hook grooves 21 are arranged at intervals along the circumferential direction of the main body fixing case 2, and the plurality of hook portions 11 are arranged in one-to-one correspondence with the plurality of hook grooves 21. By adding a plurality of clamping hook parts 11 and clamping grooves 21, the stability of connection between the fluid smoke cover 1 and the main body fixing shell 2 is further ensured.

In some embodiments, the top of the body fixing case 2 is annularly spaced apart with a plurality of first holes 22. The smoke can enter the inside of the main body fixing case 2 not only through the fluid smoke mask 1 but also from the inside of the main body fixing case 2 through the first hole 22.

In other embodiments, the bottom of the accommodating groove 31 is provided with a plurality of second holes 33. The second holes 33 are formed at intervals at the bottom of the accommodating groove 31, and the second holes 33 play a role in heat dissipation because the circuit board 4 is installed in the accommodating groove 31.

Further, the inner side wall of the main body fixing case 2 is provided with a first connection post 23 having a first connection hole 231, and the inner side wall of the lower case fixing member 3 is provided with a second connection post 34 having a second connection hole 341, and a bolt is threaded through the second connection hole 341 to the first connection hole 231. Illustratively, the main body fixing case 2 may be made of, but not limited to, metal or plastic materials, without being excessively limited thereto.

In some embodiments, the plurality of first connecting posts 23 and the plurality of second connecting posts 34 are each triangularly distributed. In other embodiments, the first connecting posts 23 and the second connecting posts 34 may be distributed in a quadrilateral shape.

Further, the inner side wall of the main body fixing case 2 is provided with a plurality of reinforcing plates 24 at intervals. Specifically, the reinforcing plate 24 is of an integrated structure with the main body fixing case 2, providing structural strength to the whole of the main body fixing case 2.

To sum up, the fire alarm in the present embodiment is directly connected to the network using NB-IoT (narrowband internet of things) technology. When a fire occurs, it can directly transmit alarm information to a server in addition to generating an alarm by sound and light. Through modes such as short messages, telephones and the like, the server can rapidly inform a user and a fire alarm center, and fire information can be timely transmitted. The fire alarm of this embodiment is applicable to fire control security protection field, mainly used fire detection and warning. When a fire disaster occurs, the fire alarm can send out an audible and visual alarm, and the user is timely notified through short messages, telephones and the like, so that the possible personal and property losses are reduced. Compared with the traditional independent type smoke alarm and the networking type smoke alarm, the fire alarm is more efficient and reliable in function, can transfer fire alarms to users and related institutions more quickly, and provides stronger fire safety protection.

The intelligent fire alarm based on the NB-IoT wireless communication technology in the fire alarm is optimized in smoke detection and alarm functions. The fire alarm system is directly connected to a network, and can rapidly transmit fire alarm information to a user and a fire alarm center, so that risks and losses caused by fire are effectively reduced. The technology has wide application prospect in the field of fire protection and security, and provides a more reliable and intelligent smoke detection solution for users.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. Fire alarm, its characterized in that includes:

the protective housing, including fluid smog cover (1), main part fixed shell (2) and inferior valve mounting (3), fluid smog cover (1) set up in the top of main part fixed shell (2), inferior valve mounting (3) set up in the bottom of main part fixed shell (2), inferior valve mounting (3) concave holding tank (31) that is equipped with;

the circuit board (4) is arranged in the accommodating groove (31), and the circuit board (4) is provided with an MCU main control module (41), a narrow-band Internet of things communication module (42), a photoelectric smoke sensor (43), a temperature and humidity detection module (44), a buzzer alarm (45) and an infrared receiver (46), wherein the narrow-band Internet of things communication module (42), the photoelectric smoke sensor (43), the temperature and humidity detection module (44), the buzzer alarm (45) and the infrared receiver (46) are electrically connected with the MCU main control module (41);

and the remote controller is used for being in communication connection with the infrared receiver (46).

2. The fire alarm as claimed in claim 1, wherein the lower case fixing member (3) is provided with a limit groove (32), a battery is mounted in the limit groove (32), the circuit board (4) is provided with a positive and negative electrode wiring module (47), the positive and negative electrode wiring module (47) is electrically connected with the MCU main control module (41), and the battery is electrically connected with the positive and negative electrode wiring module (47) through a wire.

3. The fire alarm as claimed in claim 2, wherein the circuit board (4) is further provided with an LED indicator lamp (48), and the LED indicator lamp (48) is electrically connected with the MCU main control module (41).

4. A fire alarm as claimed in any one of claims 1 to 3, wherein a hook portion (11) is provided at the bottom of the fluid smoke cover (1), a clamping groove (21) is provided at the top of the main body fixing case (2), and the hook portion (11) is clamped in the clamping groove (21).

5. The fire alarm as claimed in claim 4, wherein a plurality of the hooking portions (11) are provided at intervals along the circumferential direction of the fluid smoke mask (1), a plurality of the hooking grooves (21) are provided at intervals along the circumferential direction of the main body fixing case (2), and the plurality of the hooking portions (11) are provided in one-to-one correspondence with the plurality of the hooking grooves (21).

6. A fire alarm as claimed in claim 5, wherein the top of the main body fixing case (2) is annularly provided with a plurality of first holes (22) at intervals.

7. A fire alarm as claimed in claim 6, wherein the bottom of the receiving groove (31) is provided with a plurality of second holes (33).

8. The fire alarm as claimed in claim 4, wherein the inner side wall of the main body fixing case (2) is provided with a first connection post (23) having a first connection hole (231), the inner side wall of the lower case fixing member (3) is provided with a second connection post (34) having a second connection hole (341), and a bolt is screw-coupled with the first connection hole (231) through the second connection hole (341).

9. A fire alarm as claimed in claim 8, wherein a plurality of the first connection posts (23) and a plurality of the second connection posts (34) are each arranged in a triangular shape.

10. A fire alarm as claimed in claim 4, wherein a plurality of reinforcing plates (24) are provided at intervals on the inner side wall of the main body fixing case (2).