CN217880514U - Civil laser methane alarm with high stability - Google Patents

Abstract

The utility model discloses a civilian laser methane alarm that stability is high, including device shell and the alarm unit of setting in the device shell, the device shell includes housing and drain pan, the housing with drain pan fixed connection, alarm unit includes a circuit board and sets up the data processing unit on the circuit board, still be equipped with stand-by battery, bee calling organ, laser methane sensor, carbon monoxide sensor, smoke and feel sensor and self-checking/amortization module on the circuit board, the surface of housing be equipped with the detachable air inlet window, with self-checking/amortization module matched with self-checking/amortization button. The utility model provides a pair of civilian laser methane alarm that stability is high can improve methane alarm's stability, reduces the wrong report police, realizes all-round detection to realize long-range warning control.

Description

Civil laser methane alarm with high stability

Technical Field

The utility model relates to an alarm device especially relates to a civilian laser methane alarm that stability is high.

Background

The methane sensors adopted by the common methane alarm in the current market are mainly catalytic combustion type, thermal conductivity type and NDIR infrared absorption type methane sensors, and compared with laser methane sensors, the methane alarm has certain defects in principle, such as the poor anti-interference capability, the easy interference of other gases, the poor anti-toxicity and the short service life of the catalytic combustion type sensor and the thermal conductivity type sensor; the NDIR infrared absorption type sensor is safe in nature, but is poor in stability and greatly influenced by the environment, in addition, most of alarms are mainly used for detection and alarm functions, the functions of other linkage with other devices are lacked, and the common size of the civil laser methane sensor in the current market is large and the price is high, so that the civil laser methane alarm with high stability and low cost needs to be designed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned not enough of present methane alarm existence, the utility model provides a civilian laser methane alarm that stability is high can improve civilian alarm's stability, reduces the wrong report alert, increases carbon monoxide and smoke and feels the sensor, realizes all-round detection to realize long-range warning control.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

a civil laser methane alarm with high stability comprises an apparatus shell and an alarm unit arranged in the apparatus shell, wherein the apparatus shell comprises a housing and a bottom shell, the housing is fixedly connected with the bottom shell, the alarm unit comprises a circuit board and a data processing unit arranged on the circuit board, the circuit board is also provided with a standby battery, a buzzer, a laser methane sensor, a carbon monoxide sensor, a smoke sensor and a self-checking/silencing module, and the buzzer, the standby battery, the laser methane sensor, the carbon monoxide sensor, the smoke sensor and the self-checking/silencing module are all electrically connected with the data processing unit; the outer surface of the housing is provided with a detachable air inlet window and a self-checking/silencing button matched with the self-checking/silencing module.

According to the utility model discloses an aspect, still be equipped with external interface module, power source, stand-by battery switch and a plurality of LED lamp on the circuit board.

According to the utility model discloses an aspect, the side of housing is equipped with evenly distributed's air vent, still be equipped with on the housing with the pilot lamp window that the LED lamp position corresponds, with the reaming hole that the buzzer position corresponds.

According to the utility model discloses an aspect, the air inlet window comprises filter screen, fixed frame, the filter screen is installed on the fixed frame, fixed frame passes through buckle structure and is connected with the housing.

According to the utility model discloses an aspect, the pilot lamp window is including the six windows of power, battery, trouble, methane warning, carbon monoxide warning, smog warning that show in proper order.

According to an aspect of the present invention, the data processing unit includes a wireless communication module, a storage module, and a timing module.

According to the utility model discloses an aspect, be equipped with the external terminal who corresponds with external interface module position on the drain pan, the side is equipped with the stand-by battery switch hole that corresponds with stand-by battery switch position, still be equipped with recess and a plurality of son on the drain pan and detain.

According to an aspect of the utility model, the outside terminal includes external natural gas valve door interface, wired communication interface, outside direct current access interface.

According to the utility model discloses an aspect still includes the installing support, the drain pan passes through the installing support to be fixed at the wall, be equipped with on the installing support with the son is detained the box that corresponds, the son is detained and the mutual joint cooperation of box is fixed, the installation is propped up still to be equipped with first mounting hole, second mounting hole and protruding board, the protruding board with the cooperation of recess joint is fixed.

According to the utility model discloses an aspect, stand-by battery, bee calling organ, laser methane sensor, carbon monoxide sensor, smoke and feel sensor and data processing unit, external interface module, power source, stand-by battery switch, self-checking/amortization module, a plurality of LED lamp all are the welding carry out the electricity on the circuit board and connect.

The utility model discloses the advantage of implementing:

1) The laser methane sensor adopted by the utility model has the advantages of good stability, fast reaction, full range, long service life and being not easily affected by other gases;

2) The device shell of the utility model is provided with the air inlet window on the front side and the air vents on the side sides, so that the ventilation is faster, the reaction is more sensitive, and in severe environment of heavy oil smoke and high humidity, only the parts such as a filter screen and the like need to be checked and replaced;

3) The utility model discloses and have wireless communication module and wired connection interface, can arrive PC end or cell-phone APP end again to the high in the clouds to the data information transmission of sensor, realize remote control and look over.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an appearance schematic diagram of a civil laser methane alarm with high stability according to the present invention;

fig. 2 is a schematic front structural view of a civil laser methane alarm with high stability according to the present invention;

fig. 3 is a back structural schematic diagram of the civil laser methane alarm with high stability according to the present invention;

fig. 4 is a rear view of the civil laser methane alarm with high stability.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: either mechanically or electrically: 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 invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, a civilian laser methane alarm that stability is high, includes device shell and the alarm unit of setting in the device shell, the device shell includes housing 1 and drain pan 3, housing 1 with drain pan 3 fixed connection, alarm unit includes a circuit board 2 and sets up the data processing unit on circuit board 2, and circuit board 2 locates 1 inside and through fastener and drain pan 3 fixed connection in the housing, drain pan 3 is connected with the wall through installing support 4.

In practical application, the shell of the device is in a cube shape, a round opening 11 is formed in the outer surface of the housing 1, a detachable air inlet window 12 is installed on the opening 11, vent holes 13 are uniformly distributed in four side surfaces of the housing 1, and the vent holes 13 in each side surface are spaced by 1-2 cm, so that the device can ventilate more quickly and is quicker to react; a sound expansion hole 16 is arranged at the upper left corner of the housing 1, an indicator light window 14 is arranged at the lower left corner, and a self-checking/silencing button 15 is arranged at the lower right corner.

The air inlet window 12 comprises a filter screen 121 and a fixing frame 122, the air inlet window 12 is circular, and the diameter of the air inlet window 12 is 3-4 cm shorter than the length of the housing 1; the fixing frame 122 is provided with mounting holes 123 distributed at equal intervals, the opening 11 is provided with buckles 111 corresponding to the mounting holes 123, and the fixing frame 122 is connected with the housing 1 through the buckles 111 at the opening 11 to realize detachability; the filter screen 121 is also provided with a buckle 111 to be connected with the fixing frame 122, so that the filter screen 121 can be installed on the fixing frame 122, long-term maintenance-free in a common environment, and only the filter screen 121 and other accessories need to be checked in severe environments with heavy oil smoke and high humidity.

In practical application, two buckle holes 35 are respectively arranged on four side edges of the bottom shell 3, a buckle 111 corresponding to the buckle hole 35 of the bottom shell 3 is arranged inside the housing 1, and the housing 1 is connected with the bottom shell 3 in a clamping and matching manner through the buckle 111; the circuit board 2 is disposed in the inner space of the housing 1, four corners of the circuit board 2 are each provided with a bolt hole 202, four corners of the bottom case 3 are each provided with a bolt hole seat 36 corresponding to the bolt hole 202 of the circuit board 2, and the fastener passes through the bolt holes 202 and the bolt hole seats 36 in sequence to connect and fix the circuit board 2 and the bottom case 3, the fastener of the embodiment is a bolt 203, and in other embodiments, a fastener having the same fixing function, such as a rivet, may be used.

In practical application, the circuit board 2 is a PCB, the buzzer 22, the backup battery 21, the laser methane sensor 23, the carbon monoxide sensor 24, the smoke sensor 25 and the data processing unit are welded on the circuit board 2, and the buzzer 22, the backup battery 21, the laser methane sensor 23, the carbon monoxide sensor 24 and the smoke sensor 25 are all electrically connected with the data processing unit.

The middle of the buzzer 22 is designed with a cylindrical sound cavity 221, the buzzer 22 is arranged at the upper left corner of the circuit board 2 and corresponds to the position of the sound amplifying hole 16 of the casing 1, so that the sound emitted by the buzzer 22 is more loud and beautiful in appearance.

The standby battery 21 can ensure the normal operation of the alarm under the condition of sudden power failure, ensure the safety, and the standby battery 21 can continue the journey for 12 hours under the condition of power failure.

The circuit board 2 is further provided with an external interface module 27, a power interface 28, a standby battery switch 29, a self-checking/silencing module 20 and a plurality of LED lamps 201, wherein the power interface 28 is arranged right below the circuit board 2, and the power interface 28 of the embodiment adopts a universal Type-C interface, so that the use of a user is more convenient; the standby battery switch 29 is arranged at the lower right corner of the circuit board 2; the self-checking/silencing module 20 is arranged at the lower right corner of the circuit board 2 and corresponds to the position of the self-checking/silencing button 15 of the cover 1; the LED lamp of this embodiment is provided with 6, and 6 LED lamps are established in circuit board 2 lower left corner, and are corresponding with the pilot lamp window 14 position of housing 1.

In practical application, the data processing unit includes wireless communication module, storage module and timing module, laser methane sensor 23, carbon monoxide sensor 24, the data of smoke sensor 25 and buzzer 22's alarm information accessible wireless communication module transmit to the high in the clouds PC end or cell-phone APP end again, thereby can set up through PC end or cell-phone APP end and return and give wireless communication module control alarm, realize two-way data transmission, the wireless communication module of this embodiment adopts NBIOT communication module.

The storage module can derive alarm records, alarm release records, fault records, power failure records, power-on records and the like in the equipment according to the communication protocol. The number of alarm records is not less than 200, the number of alarm release records is not less than 200, the number of fault records is not less than 100, the number of fault recovery records is not less than 100, and the number of power-down records and power-up records is not less than 50.

The timing module can realize the timing function, and the daily timing error is less than 30s.

The buzzer 22, the standby battery 21, the laser methane sensor 23, the carbon monoxide sensor 24, the smoke sensor 25, the data processing unit, the external interface module 27, the power interface 28, the standby battery switch 29, the self-checking/silencing module 20 and the 6 LED lamps 201 are all welded on a PCB for electrical connection.

In practical application, the 6 LED lamps 201 are respectively a power indicator, a battery indicator, a fault indicator, a methane alarm, a carbon monoxide alarm and a smoke alarm, and the indicator window 14 of the housing 1 sequentially displays a power supply, a battery, a fault, a methane alarm, a carbon monoxide alarm and a smoke alarm. In other embodiments, the number of LED lights and what indicator lights are specifically intended to be displayed may be determined based on the actual situation. The LED lamp is used as a working state display lamp of the device to display the working states of normal, fault and alarm, the working state is green in the normal state, red in the fault state and red in the alarm state, corresponding Chinese comments are arranged under the indicator lamp window 14, and the state of the indicator lamp is clearly visible at the position 5m right ahead under the illumination condition of 5 lx-500 lx.

In practical applications, the bottom case 3 is provided with an external terminal 31 corresponding to the external interface module 27, a spare battery switch hole 32 corresponding to the spare battery switch 29 of the circuit board 2 is formed in a side surface of the bottom case 3, the bottom case 3 is further provided with a groove 34 and a plurality of sub-fasteners 33, and the number of the sub-fasteners 33 is four.

Wherein, the external wiring terminal 31 is provided with an external natural gas valve interface, an RS485 wired communication interface (anode), an RS485 wired communication interface (cathode), an earth interface and a +5V external direct current access interface. The Chinese note of the external natural gas valve interface is ON/OFF, the high level closes the valve, and the normal state is low level.

In practical application, the mounting bracket 4 is provided with a female buckle 41, a first mounting hole 42, a second mounting hole 43 and a protruding plate 44 which correspond to the male buckle 33, wherein the male buckle 33 and the female buckle 41 are clamped and matched with each other for fixation, the protruding plate 44 and the groove 34 are clamped and matched with each other for fixation, the mounting bracket 4 is connected with the bottom shell 3, a slide way is adopted, downward pushing is mounting, upward pushing is dismounting, and cleaning and use by a user are facilitated; the mounting bracket 4 can adopt the mode that the screw passed first mounting hole 42 and second mounting hole 43 and wall fixed connection, also can adopt 3M to glue and paste mounting bracket 4 and wall and fix, can decide according to the actual conditions of wall.

In practical application, when the alarm is installed or used, a user can continuously press the self-checking/silencing button 15 for 2 times to start the equipment self-checking; the alarm can be relieved by pressing the self-checking/silencing button 15 once; the smoke alarm function can be turned off by pressing the self-checking/silencing button 15 for 3 times.

In practice, the present apparatus has a methane detection range of 0.05% to 100% vol, an error range of 0.05% to 1% vol: VOL is +/-0.05 percent, the reaction time is less than or equal to 5s, the service life of the device can be as long as six years, the device can resist the severe environment of high temperature, high humidity and oil smoke, is not easily subjected to cross interference of other gases (such as alcohol, paint organic solvent, insecticide, banana oil and the like), and is not poisoned under the condition of long-term background gas or high-concentration gas.

In practical applications, the loudness of the buzzer 22 is at a distance of 1m directly in front of the device, and the maximum sound pressure level is not less than 70dB, not more than 115dB.

In practical applications, the methane and carbon monoxide gas detection alarm is divided into two levels, the first level preset alarm value of methane is 3% LEL, and the second level preset alarm value is 8% LRL; the first preset alarm value of carbon monoxide is 50ppm and the second preset alarm value is 200ppm. Through the two-stage alarm, different sound and light effects are achieved, and different emergency degrees are represented.

This principle of using novel laser methane alarm who adopts does, and the transmission is only to the laser wavelength that methane gas is sensitive, is absorbed after meetting methane gas, and the concentration of methane is judged through the laser that the test reflection was come back, has just avoided the interference of other gases in principle from, and stability is better, and antitoxic is strong, longe-lived.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The civil laser methane alarm with high stability comprises a device shell and an alarm unit arranged in the device shell, wherein the device shell comprises a housing (1) and a bottom shell (3), the housing (1) is fixedly connected with the bottom shell (3), and the civil laser methane alarm is characterized in that the alarm unit comprises a circuit board (2) and a data processing unit arranged on the circuit board (2), the circuit board (2) is also provided with a standby battery (21), a buzzer (22), a laser methane sensor (23), a carbon monoxide sensor (24), a smoke sensor (25) and a self-checking/silencing module (20), and the buzzer (22), the standby battery (21), the laser methane sensor (23), the carbon monoxide sensor (24), the smoke sensor (25) and the self-checking/silencing module (20) are electrically connected with the data processing unit; the outer surface of the housing (1) is provided with a detachable air inlet window (12) and a self-checking/silencing button matched with the self-checking/silencing module (20).

2. The civil laser methane alarm with high stability as claimed in claim 1, wherein the circuit board (2) is further provided with an external interface module (27), a power interface (28), a standby battery switch (29) and a plurality of LED lamps (201).

3. The civil laser methane alarm with high stability as claimed in claim 2, wherein the side of the housing (1) is provided with uniformly distributed vent holes (13), and the housing (1) is further provided with an indicator light window (14) corresponding to the position of the LED light (201) and a loud speaker hole (16) corresponding to the position of the buzzer (22).

4. The civil laser methane alarm with high stability as claimed in claim 3, wherein said air intake window (12) is composed of a filter screen (121) and a fixed frame (122), said filter screen (121) is installed on said fixed frame (122), said fixed frame (122) is connected with said housing (1) by a snap structure.

5. The civil laser methane alarm with high stability as claimed in claim 4, wherein the indicator light window (14) comprises six windows of a power supply, a battery, a fault, a methane alarm, a carbon monoxide alarm and a smoke alarm which are displayed in sequence.

6. The civil laser methane alarm with high stability of claim 5, wherein the data processing unit comprises a wireless communication module, a storage module and a timing module.

7. The civil laser methane alarm with high stability as claimed in claim 6, wherein the bottom shell (3) is provided with an external terminal (31) corresponding to the external interface module (27), the side surface is provided with a standby battery switch hole (32) corresponding to the switch position of the standby battery (21), and the bottom shell (3) is further provided with a groove (34) and a plurality of sub-buttons (33).

8. The civil laser methane alarm with high stability as claimed in claim 7, wherein the external terminal (31) comprises an external natural gas valve interface, a wired communication interface, and an external direct current access interface.

9. The civil laser methane alarm with high stability as claimed in claim 8, further comprising a mounting bracket (4), wherein the bottom case (3) is fixed on the wall surface through the mounting bracket (4), a female buckle (41) corresponding to the male buckle (33) is arranged on the mounting bracket (4), the male buckle (33) and the female buckle (41) are mutually clamped and matched and fixed, the mounting bracket (4) is further provided with a first mounting hole (42), a second mounting hole (43) and a protruding plate (44), and the protruding plate (44) is matched and fixed with the groove (34) in a clamping manner.

10. The civil laser methane alarm with high stability as claimed in any one of claims 1 to 9, wherein the backup battery (21), the buzzer (22), the laser methane sensor (23), the carbon monoxide sensor (24), the smoke sensor (25), the data processing unit, the external interface module (27), the power interface (28), the backup battery switch (29), the self-checking/silencing module (20), and the plurality of LED lamps (201) are all welded on the circuit board (2) for electrical connection.

Images