CN220961456U

CN220961456U - Portable combustible gas detector

Info

Publication number: CN220961456U
Application number: CN202322742248.2U
Authority: CN
Inventors: 周明喜; 张军; 于雯欣
Original assignee: Jinan Deltm Instruments Co ltd
Current assignee: Jinan Deltm Instruments Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-05-14
Anticipated expiration: 2033-10-12

Abstract

The utility model relates to the technical field of gas alarms, in particular to a portable combustible gas detector which comprises an upper shell, wherein a lower shell is assembled on the rear side of the upper shell through screws, a display screen is electrically connected to a main control board, a signal board is assembled on the rear side of the main control board, four groups of gas sensors are assembled on the main control board, and an NB antenna is arranged on the rear side of the signal board. The utility model adopts four groups of gas sensors, realizes four channels to detect four gases simultaneously through the four groups of gas sensors, adopts plug-in type gas sensors, is convenient for later replacement and maintenance, can be disassembled and replaced, can be flexibly selected according to the field conditions, does not need frequent replacement of the detector when a user enters different environments, is assembled by a signal board and a main control board by using a pin header and a bus header, is convenient for production assembly and function debugging, has a wireless NB communication function, can realize remote real-time understanding of the field conditions, makes corresponding treatment and measures, and furthest ensures the personal safety and property safety of people.

Description

Portable combustible gas detector

Technical Field

The utility model relates to the technical field of gas alarms, in particular to a portable combustible gas detector.

Background

The portable combustible gas detector is a portable device for detecting the concentration of combustible gas in air. It is mainly by sensing the combustible gas in the air, such as natural gas, methane, propane, etc., to determine whether there is a combustible gas leak or exceeding a safe concentration. The portable combustible gas detector is a portable device for detecting the concentration of combustible gas in air. It is mainly by sensing the combustible gas in the air, such as natural gas, methane, propane, etc., to determine whether there is a combustible gas leak or exceeding a safe concentration.

The portable combustible gas detector is generally composed of a sensor, a display screen, an alarm, a battery and a controller, and the working principle is as follows: when combustible gas exists in the air, the sensor senses the gas and converts the gas into an electrical signal, and then the electrical signal is transmitted to the controller for processing. The controller converts the electric signal into a readable numerical value for display, compares the numerical value according to a preset threshold value, and triggers an alarm to emit sound or an optical signal for warning if the concentration of the combustible gas is detected to exceed the preset threshold value. Most of portable combustible gas detectors in the current market adopt on-site real-time gas detection and alarm, the function of remote communication is not provided, after the combustible gas detectors send out alarm, only on-site personnel can know that gas leaks, off-site personnel cannot timely know the detection condition of on-site combustible gas, safer and more reliable service cannot be provided for personnel entering dangerous places in time, safety is not high enough, and a gas sensor inside the portable combustible gas detectors is of a fixed structure and cannot be conveniently disassembled and replaced, so that when different environments are entered, various gas detection devices are needed to be carried, and the use effect is not good.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the portable combustible gas detector, which solves the problems that most of the portable combustible gas detectors in the prior art adopt on-site real-time gas detection and alarm, the remote communication function is not provided, after the combustible gas detector gives an alarm, only on-site personnel can know that gas leaks, off-site personnel cannot know the detection condition of on-site combustible gas in time, safer and more reliable service cannot be provided for personnel entering dangerous places in time, the safety is not high enough, and a gas sensor inside the portable combustible gas detector is of a fixed structure and can not be conveniently disassembled and replaced, so that when the portable combustible gas detector enters different environments, various gas detection equipment is needed to be provided, and the use effect is not good.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a portable combustible gas detector, includes casing and lower casing, go up the casing rear side and be equipped with down the casing through the screw, it is equipped with the display screen to go up the inside upside of casing, the display screen electricity is connected on the main control board, the main control board rear side is equipped with the signal board, be equipped with the battery between signal board and the main control board, be equipped with four sets of gas sensor on the main control board, the signal board rear side is provided with the NB antenna.

Further, detachable card covers are arranged on the lower portion of the upper shell in a detachable mode, gas detection areas are arranged on the outer side faces of the detachable card covers, detection grooves are formed in the gas detection areas, and a plurality of groups of air holes are evenly formed in the detection grooves.

Further, the outside of the gas detection area is provided with a gas distribution cover, the left side and the right side of the gas distribution cover are both provided with gas inlet heads, the outer end of the gas inlet heads is sleeved with sealing covers, the inside of the gas distribution cover is penetrated and provided with hand-screwed bolts, and the hand-screwed bolts penetrate through the gas distribution cover and are connected with the detachable clamping cover and the lower shell through threads.

Further, be provided with the key cap on the last casing, be provided with the button on the main control board, button position and key cap position are corresponding, the button downside is provided with the siren, be provided with the terminal socket on the main control board, the display screen passes through the wire and is connected to on the terminal socket.

Further, a pin header is arranged on the main control board, a pin header is arranged on the signal board, the pin header is inserted into the pin header, a charging connector is arranged on the signal board, and the battery is electrically connected with the main control board and the signal board through wires.

Further, an NB wireless module is arranged on the signal board, and the NB wireless module is electrically connected with an NB antenna.

Further, four groups of the gas sensors are provided with pins at the rear sides, the signal board is provided with a connecting seat, the connecting seat is internally provided with a plug hole, and the pins on the gas sensors are connected into the plug hole in a plug-in mode.

Further, the signal board is also provided with a vibration motor, and the vibration motor is electrically connected with the signal board.

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

The utility model adopts four groups of gas sensors, realizes four channels to detect four gases simultaneously through the four groups of gas sensors, adopts plug-in type gas sensors, is convenient for later replacement and maintenance, can be disassembled and replaced, can be flexibly selected according to the field conditions, does not need frequent replacement of the detector when a user enters different environments, is assembled by a signal board and a main control board by using a pin header and a bus header, is convenient for production assembly and function debugging, has a wireless NB communication function, can realize remote real-time understanding of the field conditions, makes corresponding treatment and measures, and furthest ensures the personal safety and property safety of people.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of a disassembled structure of the present utility model.

Fig. 3 is a schematic structural view of the upper housing in the present utility model.

Fig. 4 is a schematic structural diagram of a main control board in the present utility model.

FIG. 5 is a schematic diagram of a gas sensor and a signal board according to the present utility model.

In the figure: 1. an upper housing; 11. a key cap; 2. a display screen; 3. a lower housing; 4. a main control board; 41. arranging needles; 42. a key; 43. an alarm; 44. a terminal socket; 5. a battery; 6. a gas sensor; 61. a stitch; 7. a vibration motor; 8. a signal board; 81. arranging a mother; 82. a charging connector; 83. a connecting seat; 84. a plug hole; 9. an NB antenna; 10. a detachable card cover; 101. a gas detection zone; 102. a detection groove; 103. air holes; 104. a gas distribution cover; 105. an air inlet head; 106. sealing cover; 107. and (5) screwing the bolt by hand.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

As shown in fig. 1 to 5, a portable flammable gas detector comprises an upper shell 1 and a lower shell 3, wherein the lower shell 3 is assembled on the rear side of the upper shell 1 through screws, a display screen 2 is assembled on the upper side of the inner part of the upper shell 1, the display screen 2 is electrically connected to a main control board 4, a signal board 8 is assembled on the rear side of the main control board 4, a battery 5 is assembled between the signal board 8 and the main control board 4, four groups of gas sensors 6 are assembled on the main control board 4, an NB antenna 9 is arranged on the rear side of the signal board 8, most of the portable flammable gas detector in the prior art adopts on-site real-time gas detection and alarming, the remote communication function is not provided, after the flammable gas detector gives out alarming, only on-site personnel can know that gas leaks, the off-site personnel cannot timely learn the detection condition of the on-site flammable gas, the personnel cannot timely provide safer and more reliable services to personnel entering dangerous places, the safety is not high enough, the gas sensor 6 inside the portable flammable gas detector is of a fixed structure, the portable flammable gas detector cannot be conveniently replaced, the portable flammable gas detector can not enter the environment, and can not be conveniently and quickly replaced, and can not be detected, and can not use various devices.

The detachable card lid 10 that is provided with of upper housing 1 lower part, detachable card lid 10 lateral surface is provided with gas detection zone 101, and detection recess 102 has been seted up to gas detection zone 101 inside, and the multiunit gas pocket 103 has evenly been seted up to detection recess 102 inside. The detachable card cover 10 is arranged to be convenient to open for dismounting and maintaining the gas sensor 6 inside. The gas detection area 101 is used for gaseous detection, and the multiunit gas pocket 103 through setting up makes things convenient for inside gas access equipment to contact with gas sensor 6 and detects, and has filtering capability simultaneously, can filter the gaseous detection, separates outside the solid particle that contains in the gas.

The gas detection area 101 outside is provided with the gas distribution cover 104, and the left and right sides of gas distribution cover 104 all is provided with air inlet head 105, and the outer pot head of air inlet head 105 is equipped with sealed lid 106, and the inside of gas distribution cover 104 runs through and is provided with the hand and twists bolt 107, and hand twists bolt 107 runs through gas distribution cover 104 and removable card lid 10 and lower casing 3 through threaded connection. This design can ensure that gas can only get into the gas distribution cover 104 through the air inlet head 105 inside, provides the passageway through air inlet head 105 for gas detection, can shelter from the protection through the gas distribution cover 104 that sets up to gas detection area 101, can seal air inlet head 105 when equipment is not used simultaneously through the sealed cowling that sets up, guarantees the leakproofness of air inlet head 105, prevents that the foreign matter from getting into and leading to air inlet head 105 to block up. The connection firmness and stability can be ensured through the design of screwing the bolts 107 by hand, and the gas distribution cover 104 and the detachable clamping cover 10 are convenient to install and detach.

The upper shell 1 is provided with a key cap 11, the main control board 4 is provided with a key 42, the position of the key 42 corresponds to that of the key cap 11, the lower side of the key 42 is provided with an alarm 43, the main control board 4 is provided with a terminal socket 44, and the display screen 2 is connected to the terminal socket 44 through a wire. The design can be convenient for a user to operate and monitor. The user can control the functions of the device by operation of the keys 42. An alarm can be given by the alarm 43 when needed to remind the user. The display screen 2 is connected to the terminal socket 44 through a wire, and can display related information in real time, so that the user can monitor the state and data of the equipment conveniently.

The main control board 4 is provided with the pin 41, the signal board 8 is provided with the pin 81, the pin 41 is inserted into the pin 81, the signal board 8 is provided with the charging connector 82, the battery 5 is electrically connected with the main control board 4 and the signal board 8 through wires, the power supply and charging functions of the equipment can be realized, and the normal operation and cruising ability of the equipment are ensured. The pin 41 is connected with the pin header 81, so that the production, the assembly and the function debugging are convenient.

The signal board 8 is provided with an NB radio module, which is electrically connected to the NB antenna 9. Such a design may enable wireless communication functionality of the device with the NB network. The NB radio may be connected to the signal board 8 by an electrical connection to enable communication with the NB network. At the same time, the NB antenna 9 is also electrically connected to the NB radio for receiving and transmitting radio signals. The design can enable the equipment to perform functions such as remote monitoring and data transmission through the NB network, signals can be transmitted to a remote cloud platform server center through the NB wireless module, and the signals are issued to appointed mobile phone app users through the cloud platform, so that the functions of timely reminding relevant personnel of gas leakage and alarming on site and reminding of preventing safety accidents are achieved.

The rear sides of the four groups of gas sensors 6 are provided with pins 61, the signal board 8 is provided with a connecting seat 83, the inside of the connecting seat 83 is provided with plug holes 84, and the pins 61 on the gas sensors 6 are connected into the plug holes 84 in a plug-and-pull mode. Four different gases can be detected simultaneously by the four groups of gas sensors 6, and the signal values of combustible gas, oxygen, hydrogen sulfide and carbon monoxide can be detected simultaneously. The four groups of gas sensors 6 are all in pluggable mode, so that later replacement and maintenance are facilitated, the specification and the model of the gas sensors 6 can be flexibly selected according to the field conditions, and a user does not need to frequently replace the detector when entering different environments.

The signal board 8 is also provided with a vibration motor 7, and the vibration motor 7 is electrically connected with the signal board 8. The vibration feedback function of the device can be achieved. The design can generate vibration through the vibration motor 7, and the vibration of the vibration motor 7 can remind a user. When the device detects that the combustible gas exceeds the threshold, vibration is generated, and the vibration can attract the attention of a user, so that the use interactivity of the device can be enhanced.

The main control board is U9500A1004, the signal board is M5310, and the four groups of gas sensors are a methane sensor, an oxygen sensor, a carbon monoxide sensor and a hydrogen sulfide sensor respectively.

The working principle of the portable combustible gas detector is as follows: in actual use, the sealing cover 106 on the air inlet head 105 is taken down, gas in the air enters the air distribution cover 104 through the air inlet head 105, then enters the equipment through the air hole 103 to be in contact with the gas sensor 6, the gas is detected through the gas sensor 6, the gas sensor 6 detects the gas to generate an electric signal, the signal value is transmitted to the main control board 4, and compared with set parameters after being processed and calculated by the main control board 4, and the gas concentration value is converted into a visualized and easily understood gas concentration value and displayed through the display screen 2 for a user to check; when the preset threshold value is reached, the main control board 4 drives the alarm 43 and the vibration motor 7 to output, and sends out an audible and visual alarm and vibration to remind the site operators of paying attention to safety; and the signals are transmitted to a remote cloud platform server center through the NB wireless module and the NB antenna 9, and are issued to the appointed mobile phone app users through the cloud platform, so that the alarm of timely reminding relevant personnel of gas leakage on site and reminding the occurrence of prevention safety accidents is achieved.

It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and not limiting of the embodiments of the present utility model, and that various other changes and modifications can be made by those skilled in the art based on the above description, and it is not intended to be exhaustive of all of the embodiments, and all obvious changes and modifications that come within the scope of the utility model are defined by the following claims.

Claims

1. The utility model provides a portable combustible gas detector, includes casing (1) and lower casing (3), its characterized in that: the utility model discloses a portable electronic device is characterized in that a lower shell (3) is assembled on the rear side of an upper shell (1) through screws, a display screen (2) is assembled on the upper side of the inner portion of the upper shell (1), the display screen (2) is electrically connected to a main control board (4), a signal board (8) is assembled on the rear side of the main control board (4), a battery (5) is assembled between the signal board (8) and the main control board (4), four groups of gas sensors (6) are assembled on the main control board (4), and an NB antenna (9) is arranged on the rear side of the signal board (8).

2. The portable combustible gas detector of claim 1 wherein: the detachable card cover (10) that is provided with of last casing (1) lower part detachable, detachable card cover (10) lateral surface is provided with gas detection area (101), detection recess (102) have been seted up to gas detection area (101) inside, multiunit gas pocket (103) have evenly been seted up to detection recess (102) inside.

3. The portable combustible gas detector of claim 2 wherein: the gas detection area (101) outside is provided with gas distribution cover (104), gas distribution cover (104) both sides all are provided with air inlet head (105), just air inlet head (105) outer pot head is equipped with sealed lid (106), gas distribution cover (104) inside runs through and is provided with hand bolt (107), hand bolt (107) runs through gas distribution cover (104) and removable card lid (10) and lower casing (3) through threaded connection.

4. The portable combustible gas detector of claim 1 wherein: the novel portable electronic device is characterized in that a key cap (11) is arranged on the upper shell (1), keys (42) are arranged on the main control board (4), the positions of the keys (42) correspond to the positions of the key caps (11), an alarm (43) is arranged on the lower side of each key (42), a terminal socket (44) is arranged on the main control board (4), and the display screen (2) is connected to the terminal socket (44) through a wire.

5. The portable combustible gas detector of claim 1 wherein: the novel intelligent electric power transmission device is characterized in that a pin (41) is arranged on the main control board (4), a pin row (81) is arranged on the signal board (8), the pin row (41) is inserted into the pin row (81), a charging connector (82) is arranged on the signal board (8), and the battery (5) is electrically connected with the main control board (4) and the signal board (8) through wires.

6. The portable combustible gas detector of claim 5 wherein: and an NB wireless module is arranged on the signal board (8), and the NB wireless module is electrically connected with an NB antenna (9).

7. The portable combustible gas detector of claim 1 wherein: four groups gas sensor (6) rear sides all are provided with stitch (61), be provided with connecting seat (83) on signal board (8), spliced eye (84) have been seted up to connecting seat (83) inside, stitch (61) on gas sensor (6) are connected to in spliced eye (84) through the mode of pulling out the plug.

8. The portable combustible gas detector of claim 1 wherein: the signal board (8) is also provided with a vibrating motor (7), and the vibrating motor (7) is electrically connected with the signal board (8).