CN215814435U

CN215814435U - Fire monitor

Info

Publication number: CN215814435U
Application number: CN202122061522.0U
Authority: CN
Inventors: 邵华; 王瑄琪
Original assignee: Huojingling Tianjin Technology Development Co ltd
Current assignee: Huojingling Tianjin Technology Development Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-11
Anticipated expiration: 2031-08-30

Abstract

The application provides a fire monitor, includes: the top of the lower shell is provided with an opening, and a power supply groove is formed in the lower shell; a plurality of fixing seats are also arranged in the power supply groove, and the height of each fixing seat is greater than that of the upper edge of the power supply groove; the fixing seat is used for fixing the circuit board; the upper shell is arranged at the top of the lower shell, and a first cavity is formed between the upper shell and the lower shell; the top of the upper shell is provided with a through hole communicated between the upper shell and the lower shell; the probe cover is arranged at the top of the upper shell and is communicated with the first cavity through the through hole; a plurality of air holes are formed in the probe cover; a second cavity is formed between the probe cover and the upper shell; and a combustible gas sensor and a smoke sensor are arranged in the second cavity, the combustible gas sensor and the smoke sensor are connected with a circuit board, and the circuit board is connected with a power supply module in the power supply groove. The fire monitor that this application embodiment provided can monitor smog concentration and combustible gas concentration simultaneously, can be applied to among the multiple environment.

Description

Fire monitor

Technical Field

The application belongs to the fire monitoring field, especially relates to a fire monitor.

Background

With the rapid development of economic construction in China, the production and storage rooms of enterprises are large-scale day by day, and the fire prevention and control are provided with serious challenges due to the characteristics of large volume, complex functions, many hazard sources, large fire load and the like.

A large number of fire monitors are required in the factory building for monitoring and fire prevention. These monitors are typically used to monitor smoke concentration and thus fire. For some special plants, a combustible gas monitor may be separately arranged to monitor the concentration of combustible gas and prevent the leakage of combustible gas. Currently, there is no monitor available for monitoring both indicators simultaneously.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a fire monitor, can solve the problem that can not monitor smog concentration and combustible gas concentration simultaneously among the prior art at least.

In a first aspect, a fire monitor provided in an embodiment of the present application includes:

the top of the lower shell is provided with an opening, and a power supply groove is formed in the lower shell; a plurality of fixing seats are also arranged in the power supply groove, and the height of each fixing seat is greater than that of the upper edge of the power supply groove; the fixing seat is used for fixing the circuit board;

the upper shell is arranged at the top of the lower shell, and a first cavity is formed between the upper shell and the lower shell; the top of the upper shell is provided with a through hole communicated between the upper shell and the lower shell;

the probe cover is arranged at the top of the upper shell and is communicated with the first cavity through the through hole; a plurality of air holes are formed in the probe cover; a second cavity is formed between the probe cover and the upper shell;

and a combustible gas sensor and a smoke sensor are arranged in the second cavity, the combustible gas sensor and the smoke sensor are connected with a circuit board, and the circuit board is connected with a power supply module in the power supply groove.

In some optional embodiments, the bottom of the lower shell extends outwards to form a fixing plate; the fixing plate is provided with a fixing hole.

In some alternative embodiments, the upper shell and the lower shell are hermetically connected; after the combustible gas sensor and the smoke sensor are arranged in the probe cover, the through hole on the upper shell is sealed.

In some alternative embodiments, the upper shell and the lower shell are hermetically connected through a sealing rubber ring.

In some optional embodiments, the circuit board comprises a controller, an NB-IOT module and an active GPS antenna;

a controller connected to the NB-IOT module and the active GPS antenna;

the controller is also connected with the power supply module.

In some optional embodiments, the combustible gas sensor is connected to the controller; the smoke sensor is connected with the controller and is connected with the combustible gas sensor in parallel.

In some optional embodiments, the controller includes a main control chip and an RS485 interface circuit connected to the main control chip; the main control chip is also connected with the NB-IOT module.

In some optional embodiments, the power module is connected to a voltage conversion circuit, and the voltage conversion circuit is connected to the main control chip.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects:

the embodiment of the application provides a fire monitor includes smoke transducer and combustible gas sensor simultaneously, can monitor smog concentration and combustible gas concentration simultaneously, and monitoring effect is better, can be applicable to multiple monitoring environment. In addition, the NB-IOT module is used for communication, so that the required electric quantity is less, more energy is saved, and the standby time can be prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

FIG. 1 is a schematic diagram of a fire monitoring system according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of an RS485 interface circuit according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a BC20 circuit according to an embodiment of the present application;

FIG. 4 is a first schematic structural view of a fire monitor according to an embodiment of the present disclosure;

FIG. 5 is a second schematic structural view of a fire monitor according to an embodiment of the present disclosure;

FIG. 6 is an exploded view of a fire monitor configuration according to an embodiment of the present application.

Description of reference numerals:

10. a lower housing; 20. an upper housing; 30. a probe plate; 101. a power supply slot; 102. a fixed seat; 103. a fixing plate; 104. a fixing hole; 201. a through hole; 301. and (4) air holes.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

As discussed in the background section, prior art fire monitors typically monitor only smoke concentration or combustible gases, and do not have monitoring devices that monitor both conditions simultaneously.

Based on the discovery, this application provides a fire monitoring system, monitor, can solve the problem that can not monitor smog concentration and combustible gas concentration simultaneously among the prior art at least.

The fire monitoring system and the fire monitoring device provided by the embodiment of the application are received in detail in the following with the accompanying drawings.

Embodiments of the present application provide a fire monitoring system, which may be deployed within a monitor housing.

The structure of the fire monitoring system provided by the present application will be described first with reference to fig. 1.

As shown in FIG. 1, the fire monitoring system may include a controller, and a combustible gas sensor, a smoke sensor, an NB-IOT module, an active GPS antenna, and a power module connected thereto.

Wherein, the smoke sensor is connected with the combustible gas sensor in parallel. The smoke sensor is used for monitoring smoke concentration, and the combustible gas sensor is used for monitoring combustible gas concentration.

The NB-IOT module and the narrowband communication technology have the unique advantages of low power consumption technology and high penetrability of wireless communication. With NB-IoT technology, the device can stand by for 5-10 years in field use, and the signal penetration capacity is 50-100 times that of a 2G network.

And the active GPS antenna is used for receiving signals.

And the power supply module is used for providing electric energy for the monitoring system.

The circuit of the fire monitoring system provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.

In some embodiments, the controller comprises a main control chip and an RS485 interface circuit connected with the main control chip; the main control chip is also connected with the NB-IOT module.

Please refer to fig. 2, an RS485 interface circuit according to an embodiment of the present application is schematically illustrated.

In some embodiments, the power module is connected to the voltage conversion circuit, and the voltage conversion circuit is connected to the main control chip.

Wherein, the power module can adopt a lithium battery. The main control chip can adopt an STM32L151RCT6 chip. The NB-IOT module is model number BC 20. The BC20 circuit is shown in fig. 3.

Most of traditional fire monitors are used industrially or at home, need often supply power and adopt wired communication or wiFi to carry out information interaction, and it can not be used to the special environment of outdoor especially not having the power. The NB-IOT module is adopted in the embodiment of the application, and the NB-IOT module can be better applied to outdoor and severe environments, such as communication line wells, gas wells and the like.

Embodiments of the present application also provide a fire monitor, and as shown in fig. 4, the fire monitor 400 may include a fire monitoring system 401 provided in any of the above embodiments. The fire monitoring realization principle and the achieved technical effect are similar to the fire monitoring system embodiment, and are not repeated herein.

The embodiment of the application also provides another fire monitor.

Referring to fig. 5 and fig. 6, another fire monitor provided in the embodiments of the present application may include a housing and a fire monitoring system disposed in the housing, where the fire monitoring system may be the fire monitoring system provided in any of the embodiments described above, or may be another fire monitoring system capable of meeting the needs of the embodiments of the present application.

The housing includes a first cavity and a second cavity.

And a circuit board and a power module of the fire monitoring system are arranged in the first cavity. And a combustible gas sensor and a smoke sensor are arranged in the second cavity, and the second cavity is communicated with the outside.

Wherein the housing includes a lower housing 10 and an upper housing 20.

A lower shell 10 with an opening at the top and a power supply groove 101 inside; a plurality of fixing seats 102 are also arranged in the power supply groove 101, and the height of each fixing seat 102 is greater than that of the upper edge of the power supply groove 101; the fixing base 102 is used for fixing a circuit board.

The upper shell 20 is arranged at the top of the lower shell 10, and a first cavity is formed between the upper shell 20 and the lower shell 10; the top of the upper case 20 is provided with a through hole 201 communicating between the upper case 20 and the lower case 10. The top of the upper shell 20 is also provided with a probe cover which is communicated with the first cavity through a through hole 201.

A plurality of air holes 301 are formed in the probe cover, and a second cavity is formed between the probe cover and the upper shell 20. And a combustible gas sensor and a smoke sensor are arranged in the second cavity, the combustible gas sensor and the smoke sensor are connected with a circuit board, and the circuit board is connected with a power supply module in the power supply groove 101.

As shown in fig. 6, the bottom of the lower housing 10 extends outward to form a fixing plate 103; the fixing plate 103 is provided with a fixing hole 104. The monitor is fixed to an external facility through the fixing hole 104.

It should be noted that, the inventor finds that, when monitoring the combustible gas, the main circuit of the monitor generally needs to isolate the combustible gas; when monitoring smog, the main circuit not only need not isolated smog, but also needs the gas permeability of monitor design better. That is, the main circuit is not designed to be in contact with the outside air because the main circuit and the main circuit are in conflict with each other.

Based on this, in the embodiment of the present application, a sealing connection is adopted between the upper casing 20 and the lower casing 10. After the combustible gas sensor and the smoke sensor are installed in the probe cover, the through hole 201 on the upper shell 20 is sealed.

Wherein, the upper shell 20 and the lower shell 10 can be connected by a sealing rubber ring in a sealing way.

The fire monitor that this application embodiment provided, first cavity are in encapsulated situation, can completely cut off combustible gas, reduce the potential safety hazard of circuit and combustible gas contact.

It should also be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the present application.

It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims

1. A fire monitor, comprising:

the top of the lower shell is provided with an opening, and a power supply groove is formed in the lower shell; a plurality of fixing seats are further arranged in the power supply groove, and the height of each fixing seat is greater than that of the upper edge of the power supply groove; the fixed seat is used for fixing the circuit board;

the second cavity is internally provided with a combustible gas sensor and a smoke sensor, the combustible gas sensor and the smoke sensor are connected with the circuit board, and the circuit board is connected with a power module in the power supply groove.

2. The fire monitor of claim 1, wherein the lower housing bottom extends outward to form a fixing plate; the fixing plate is provided with a fixing hole.

3. The fire monitor of claim 1, wherein the upper housing and the lower housing are sealingly connected; after the combustible gas sensor and the smoke sensor are arranged in the probe cover, the through hole in the upper shell is sealed.

4. The fire monitor of claim 3, wherein the upper housing and the lower housing are sealingly connected by a sealing rubber ring.

5. The fire monitor of claim 1, comprising a controller, NB-IOT module, active GPS antenna on the circuit board;

the controller is connected with the NB-IOT module and the active GPS antenna;

the controller is also connected with the power supply module.

6. The fire monitor of claim 5, wherein the combustible gas sensor is connected to the controller; the smoke sensor is connected with the controller and is connected with the combustible gas sensor in parallel.

7. A fire monitor as claimed in claim 5, wherein: the controller comprises a main control chip and an RS485 interface circuit connected with the main control chip; the main control chip is also connected with an NB-IOT module.

8. A fire monitor as claimed in claim 7, wherein: the power supply module is connected with the voltage conversion circuit, and the voltage conversion circuit is connected with the main control chip.