US-12625121-B2 - Gas detector

US12625121B2US 12625121 B2US12625121 B2US 12625121B2US-12625121-B2

Abstract

A gas detector includes a gas detector body; the gas detector body includes a detection probe, a gas detector housing, and a universal shaped tube. An end of the universal shaped tube is connected with the gas detector housing, the other end of the universal shaped tube is connected with the detection probe, and the detection probe is internally integrated with a sensor used to detect a leakage gas, an alarm lamp used for an alarm indication when the leakage gas is detected, and a lighting device used to illuminate. According to the gas detector, an extending portion of the universal shaped tube is provided with the protection probe, and the alarm lamp and the lighting device are added therein, realizing the alarm indication, and being used to illuminate as a searchlight in an area with poor lighting of a gas pipeline during non-alarm.

Inventors

Yeyi MO
Gang He

Assignees

Sndway Technology (Guangdong) Co., Ltd.

Dates

Publication Date: 20260512
Application Date: 20230912
Priority Date: 20220914

Claims (9)

1 . A gas detector, comprising a gas detector body, wherein the gas detector body comprises a detection probe ( 150 ), a gas detector housing ( 110 ), and a universal shaped tube ( 140 ); wherein an end of the universal shaped tube ( 140 ) is connected to the gas detector housing ( 110 ), and another end of the universal shaped tube ( 140 ) is connected to the detection probe ( 150 ), and the detection probe ( 150 ) is internally integrated with a sensor configured to detect a leakage gas, an alarm lamp configured to indicate an alarm when the leakage gas is detected, and a lighting device configured to illuminate; wherein the gas detector body further comprises a first controller, a light-emitting diode (LED) module, and a first drive circuit; the LED module comprises the alarm lamp and the lighting device; and the first controller is connected to the LED module through the first drive circuit; wherein the gas detector body further comprises a third drive circuit and a voice broadcasting device (SP) configured to perform voice broadcasting when the leakage gas is detected, and the first controller is connected to the voice broadcasting device through the third drive circuit; wherein the third drive circuit comprises a second controller (U 1 ), a second capacitor (C 2 ), a third capacitor (C 3 ), a fourth capacitor (C 4 ), a first diode (D 1 ), and a second diode (D 2 ); and wherein the second controller (U 1 ) is connected to a fourth interface ( 4 ) of the first controller, a fifth interface ( 5 ) of the first controller, a sixth interface ( 6 ) of the first controller, an end of the second capacitor (C 2 ), the voice broadcasting device (SP), an end of the fourth capacitor (C 4 ), an end of the first diode (D 1 ), and an end of the third capacitor (C 3 ); another end of the second capacitor (C 2 ) is grounded; another end of the fourth capacitor (C 4 ) is connected to the voice broadcasting device (SP); the first diode (D 1 ) is connected to the second diode (D 2 ); and another end of the third capacitor (C 3 ) is grounded.
2 . The gas detector as claimed in claim 1 , wherein the gas detector housing ( 110 ) is provided with a button ( 130 ) configured to turn on or turn off the lighting device.
3 . The gas detector as claimed in claim 1 , wherein the first drive circuit comprises a first resistor (R 1 ), a second resistor (R 2 ), a third resistor (R 3 ), a fourth resistor (R 4 ), a first triode (Q 1 ), and a second triode (Q 2 ); and wherein the first resistor (R 1 ) is connected to a first interface ( 1 ) of the first controller and a base electrode (B) of the first triode (Q 1 ), an emitter electrode (E) of the first triode (Q 1 ) is connected to an emitter electrode (E) of the second triode (Q 2 ), and a collector electrode (C) of the first triode (Q 1 ) is connected to the second resistor (R 2 ); the third resistor (R 3 ) is connected to a second interface ( 2 ) of the first controller and a base electrode (B) of the second triode (Q 2 ), and a collector electrode (C) of the second triode (Q 2 ) is connected to the fourth resistor (R 4 ); and the second resistor (R 2 ) and the fourth resistor (R 4 ) are connected to the LED module.
4 . The gas detector as claimed in claim 1 , wherein the gas detector body further comprises a second drive circuit, and the first controller is connected to the sensor through the second drive circuit.
5 . The gas detector as claimed in claim 4 , wherein the second drive circuit comprises a fifth resistor (R 5 ), a sixth resistor (R 6 ), a seventh resistor (R 7 ), a variable resistor (R 8 ), and a first capacitor (C 1 ); and wherein the fifth resistor (R 5 ) is connected to a third interface ( 3 ) of the first controller, an end of the first capacitor (C 1 ), the sixth resistor (R 6 ), and the variable resistor (R 8 ); another end of the first capacitor (C 1 ) is grounded; the sixth resistor (R 6 ) is connected to the seventh resistor (R 7 ); the seventh resistor (R 7 ) is connected to the variable resistor (R 8 ); and the variable resistor (R 8 ) is connected to the sensor.
6 . The gas detector as claimed in claim 1 , wherein the gas detector body further comprises a fourth drive circuit and a motor configured to perform vibration reminding when the leakage gas is detected, and the first controller is connected to the motor through the fourth drive circuit.
7 . The gas detector as claimed in claim 6 , wherein the fourth drive circuit comprises a ninth resistor (R 9 ), a tenth resistor (R 10 ), and a field effect transistor (Q 3 ); and wherein the ninth resistor (R 9 ) is connected to a seventh interface ( 7 ) of the first controller, the tenth resistor (R 10 ), and a gate electrode (G) of the field effect transistor (Q 3 ); the tenth resistor (R 10 ) is connected to a source electrode(S) of the field effect transistor (Q 3 ); and a drain electrode (D) of the field effect transistor (Q 3 ) is connected to the motor.
8 . A gas detector, comprising: a gas detector housing ( 110 ), a universal shaped tube ( 140 ), connected to the gas detector housing ( 110 ); a detection probe ( 150 ), connected to an end of the universal shaped tube ( 140 ) facing away from the gas detector housing ( 110 ); a first controller, disposed in the gas detector housing ( 110 ); a first drive circuit, disposed in the gas detector housing ( 110 ) and electrically connected to the first controller; a LED module, disposed in the detection probe ( 150 ) and electrically connected to the first drive circuit; wherein the LED module is configured to provide at least one of alarm and illumination; a second drive circuit, disposed in the gas detector housing ( 110 ) and electrically connected to the first controller; a sensor, disposed in the detection probe ( 150 ) and electrically connected to the second drive circuit; wherein the sensor is configured to detect a leakage gas; a third drive circuit, disposed in the gas detector housing ( 110 ) and electrically connected to the first controller; a voice broadcasting device (SP), disposed in the gas detector housing ( 110 ) and electrically connected to the third drive circuit; wherein the voice broadcasting device (SP) is configured to perform voice broadcasting when the leakage gas is detected; a fourth drive circuit, disposed in the gas detector housing ( 110 ) and electrically connected to the first controller; and a motor, disposed in the gas detector housing ( 110 ) and electrically connected to the fourth drive circuit; wherein the motor is configured to perform vibration reminding when the leakage gas is detected; wherein the first drive circuit comprises a first resistor (R 1 ), a second resistor (R 2 ), a third resistor (R 3 ), a fourth resistor (R 4 ), a first triode (Q 1 ), and a second triode (Q 2 ); the first resistor (R 1 ) is connected to the first controller and a base electrode (B) of the first triode (Q 1 ), an emitter electrode (E) of the first triode (Q 1 ) is connected to an emitter electrode (E) of the second triode (Q 2 ); a collector electrode (C) of the first triode (Q 1 ) is connected to the second resistor (R 2 ); the third resistor (R 3 ) is connected to the first controller and a base electrode (B) of the second triode (Q 2 ); a collector electrode (C) of the second triode (Q 2 ) is connected to the fourth resistor (R 4 ); and the second resistor (R 2 ) and the fourth resistor (R 4 ) are connected to the LED module; wherein the second drive circuit comprises a fifth resistor (R 5 ), a sixth resistor (R 6 ), a seventh resistor (R 7 ), a variable resistor (R 8 ), and a first capacitor (C 1 ); the fifth resistor (R 5 ) is connected to the first controller, an end of the first capacitor (C 1 ), the sixth resistor (R 6 ), and the variable resistor (R 8 ); another end of the first capacitor (C 1 ) is grounded; the sixth resistor (R 6 ) is connected to the seventh resistor (R 7 ); the seventh resistor (R 7 ) is connected to the variable resistor (R 8 ); and the variable resistor (R 8 ) is connected to the sensor; wherein the third drive circuit comprises a second controller (U 1 ), a second capacitor (C 2 ), a third capacitor (C 3 ), a fourth capacitor (C 4 ), a first diode (D 1 ), and a second diode (D 2 ); the second controller (U 1 ) is connected to the first controller, an end of the second capacitor (C 2 ), the voice broadcasting device (SP), an end of the fourth capacitor (C 4 ), an end of the first diode (D 1 ), and an end of the third capacitor (C 3 ); another end of the second capacitor (C 2 ) is grounded; another end of the fourth capacitor (C 4 ) is connected to the voice broadcasting device (SP); the first diode (D 1 ) is connected to the second diode (D 2 ); and another end of the third capacitor (C 3 ) is grounded; and wherein the fourth drive circuit comprises a ninth resistor (R 9 ), a tenth resistor (R 10 ), and a field effect transistor (Q 3 ); the ninth resistor (R 9 ) is connected to the first controller, the tenth resistor (R 10 ), and a gate electrode (G) of the field effect transistor (Q 3 ); the tenth resistor (R 10 ) is connected to a source electrode(S) of the field effect transistor (Q 3 ); and a drain electrode (D) of the field effect transistor (Q 3 ) is connected to the motor.
9 . A gas detector, comprising a gas detector body, wherein the gas detector body comprises a detection probe ( 150 ), a gas detector housing ( 110 ), and a universal shaped tube ( 140 ); wherein an end of the universal shaped tube ( 140 ) is connected to the gas detector housing ( 110 ), and another end of the universal shaped tube ( 140 ) is connected to the detection probe ( 150 ), and the detection probe ( 150 ) is internally integrated with a sensor configured to detect a leakage gas, an alarm lamp configured to indicate an alarm when the leakage gas is detected, and a lighting device configured to illuminate; wherein the gas detector body further comprises a first controller, a light-emitting diode (LED) module, and a first drive circuit; the LED module comprises the alarm lamp and the lighting device; and the first controller is connected to the LED module through the first drive circuit; wherein the gas detector body further comprises a fourth drive circuit and a motor configured to perform vibration reminding when the leakage gas is detected, and the first controller is connected to the motor through the fourth drive circuit; wherein the fourth drive circuit comprises a ninth resistor (R 9 ), a tenth resistor (R 10 ), and a field effect transistor (Q 3 ); and wherein the ninth resistor (R 9 ) is connected to a seventh interface ( 7 ) of the first controller, the tenth resistor (R 10 ), and a gate electrode (G) of the field effect transistor (Q 3 ); the tenth resistor (R 10 ) is connected to a source electrode(S) of the field effect transistor (Q 3 ); and a drain electrode (D) of the field effect transistor (Q 3 ) is connected to the motor.

Description

TECHNICAL FIELD The disclosure relates to the technical field of gas detection, particularly to a gas detector. BACKGROUND Natural gas is usually transported through a gas pipeline, and the gas pipeline may be likely to leak the natural gas due to its aging and other reasons. On the one hand, since the natural gas is a flammable gas, severe fire explosion accidents may be caused when the natural gas leaks. On the other hand, the natural gas is a harmful gas, and casualty accidents may be caused when a large amount of the harmful gas is leaked and inhaled by a person. Therefore, multiple gas detectors are generally used to detect whether a content of the natural gas in the air exceeds a standard safety value. At present, for conventional gas leak detectors, a sensor is connected to its housing or a sensor is provided with a universal shaped tube used as a probe. However, regardless of the above structures, there is a problem of inconvenient operation in areas with poor lighting. SUMMARY Technical Problem to be Solved In view of the above disadvantages and deficiencies of the related art, the disclosure provides a gas detector, which solves the technical problem that the existing gas detector is inconvenient to operate in the area with poor lighting. Technical Solution In order to achieve the above purpose, a main technical solution provided by the disclosure is as follows. The disclosure provides a gas detector, including a gas detector body; the gas detector body includes a detection probe, a gas detector housing, and a universal shaped tube; an end of the universal shaped tube is connected to the gas detector housing, and another end of the universal shaped tube is connected to the detection probe, and the detection probe is internally integrated with a sensor configured to detect a leakage gas, an alarm lamp configured to indicate an alarm when the leakage gas is detected, and a lighting device configured to illuminate. In an embodiment of the disclosure, the gas detector housing is provided with a button configured to turn on or turn off the lighting device. In an embodiment of the disclosure, the gas detector body further includes a first controller, a light-emitting diode (LED) module, and a first drive circuit; the LED module includes the alarm lamp and the lighting device; and the first controller is connected to the LED module through the first drive circuit. In an embodiment of the disclosure, the first drive circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first triode, and a second triode. The first resistor is connected to a first interface of the first controller and a base electrode of the first triode, an emitter electrode of the first triode is connected to an emitter electrode of the second triode, and a collector electrode of the first triode is connected to the second resistor; the third resistor is connected to a second interface of the first controller and a base electrode of the second triode, and a collector electrode of the second triode is connected to the fourth resistor; and the second resistor and the fourth resistor are connected to the LED module. In an embodiment of the disclosure, the gas detector body further includes a second drive circuit, and the first controller is connected to the sensor through the second drive circuit. In an embodiment of the disclosure, the second drive circuit includes a fifth resistor, a sixth resistor, a seventh resistor, a variable resistor, and a first capacitor. The fifth resistor is connected to a third interface of the first controller, an end of the first capacitor, the sixth resistor, and the variable resistor; another end of the first capacitor is grounded; the sixth resistor is connected to the seventh resistor; the seventh resistor is connected to the variable resistor; and the variable resistor is connected to the sensor. In an embodiment of the disclosure, the gas detector body further includes a third drive circuit and a voice broadcasting device configured to perform voice broadcasting when the leakage gas is detected, and the first controller is connected to the voice broadcasting device through the third drive circuit. In an embodiment of the disclosure, the third drive circuit includes a second controller, a second capacitor, a third capacitor, a fourth capacitor, a first diode, and a second diode. The second controller is connected to a fourth interface of the first controller, a fifth interface of the first controller, a sixth interface of the first controller, an end of the second capacitor, the voice broadcasting device, an end of the fourth capacitor, an end of the first diode, and an end of the third capacitor; another end of the second capacitor is grounded; another end of the fourth capacitor is connected to the voice broadcasting device; the first diode is connected to the second diode; and another end of the third capacitor is grounded. In an embodiment of the disclosure, the g