CN112116786A

CN112116786A - Gas alarm controller and control method thereof

Info

Publication number: CN112116786A
Application number: CN202010904252.2A
Authority: CN
Inventors: 冉鸿; 李厚明; 熊攀; 蔡鹏�
Original assignee: Shuimuniao Chongqing Safety Technology Co ltd
Current assignee: Gas Housekeeper Chongqing Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2020-12-22
Anticipated expiration: 2040-09-01
Also published as: CN112116786B

Abstract

The invention discloses a gas alarm controller and a control method thereof, relating to the field of alarm controllers, comprising a connecting box A, an alarm bell A, a support column and a three-stage expansion piece, wherein the top surface of the connecting box A is sleeved with a top surface disk A, the top surface of the top surface disk A is provided with the alarm bell A, the bottom surface of the connecting box A is provided with a primary expansion piece, the bottom end of the primary expansion piece is spliced with a top surface disk B, the bottom surface of the top surface disk B is sleeved with a connecting box B, and the bottom surface of the top surface disk B is provided with the alarm bell B. The damage to property and the occurrence of disasters are reduced.

Description

Gas alarm controller and control method thereof

Technical Field

The invention relates to the technical field of alarm controllers, in particular to a gas alarm controller and a control method thereof.

Background

A gas detector is an instrument that detects the concentration of a gas. The instrument is suitable for dangerous places with combustible or toxic gas, and can continuously detect the content of the detected gas in the air within the lower explosion limit for a long time. The device can be widely applied to various industries with combustible or toxic gas such as gas, petrochemical industry, metallurgy, steel, coking, electric power and the like, and is an ideal monitoring instrument for ensuring property and personal safety. The gas detector adopts high-performance-resistant catalytic combustion type and electrochemical type gas sensors as detection elements, has high product sensitivity and quick response time, is an aluminum die-cast one-step formed shell, and has high explosion-proof grade and convenient installation. The gas detector can detect: combustible gas: natural gas (methane), liquefied gas (isobutane, propane), gas (hydrogen), acetylene, pentane, alkynes, alkenes, alcohol, acetone, toluene, alcohols, hydrocarbons, light oil, and the like. Toxic gases: carbon monoxide, hydrogen sulfide, ammonia gas, chlorine gas, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases. The incident particles ionize the gas between the high-voltage electrode and the collecting electrode, the generated electron ions drift towards the two electrodes under the action of an electric field, output pulses are generated on the collecting electrode and fed back to a measuring system to be called as specific electric signals and displayed on a screen. This is the principle of a gas nuclear radiation detector and not of a combustible gas detector. The general principle of the combustible gas detector is to detect the gas to be detected in an electrochemical way. The gas nuclear radiation detector is a counter for detecting the number of incident particles by using working gas, such as a geiger counter and a proportional counter.

However, the existing gas alarm controller is relatively simple in form, when the gas alarm controller is used, the whole gas alarm controller is too bulky, cannot be well contracted, and is difficult to fold and carry, when the gas alarm controller is used, inconvenience is easily caused, and the requirement of the whole gas alarm controller is difficult to meet.

Accordingly, a gas alarm controller and a control method thereof are provided to solve the problems set forth in the background art described above.

Disclosure of Invention

The present invention provides a gas alarm controller and a control method thereof, which solves the problems of the prior art that the overall gas alarm controller has a single form, when in use, the integral gas alarm controller is too bulky, cannot be well contracted and is difficult to fold and carry, when the gas alarm controller is used, the inconvenience is easy to cause, the integral use requirement is difficult to meet, meanwhile, the gas alarm controller has a single alarm mode, is difficult to remind people in various modes, the gas alarm controller can not prevent danger in time and can not well reduce the danger brought to people by gas leakage, and the problems of property loss and disaster are easily caused.

In order to achieve the purpose, the invention provides the following technical scheme:

a gas alarm controller and a control method thereof comprise a connecting box A, an alarm bell A, a support column and a three-stage expansion piece, wherein the top surface of the connecting box A is sleeved with a top surface plate A, the top surface of the top surface plate A is provided with the alarm bell A, the bottom surface of the connecting box A is provided with a primary expansion piece, the bottom end of the primary expansion piece is spliced with a top surface plate B, the bottom surface of the top surface plate B is sleeved with the connecting box B, the bottom surface of the top surface plate B is provided with the alarm bell B, the bottom surface of the connecting box B is provided with a secondary expansion piece, the bottom end of the secondary expansion piece is spliced with a top surface plate C, the bottom surface of the top surface plate C is sleeved with a connecting box C, the bottom surface of the connecting box C is provided with a connecting sleeve plate, the bottom surface of the connecting sleeve plate is sleeved with a top connecting plate, the bottom surface of the top connecting plate is sleeved with a comprehensive circuit box, and, the bottom surface welding of tertiary expansion bend has fixed saucer, the top fixedly connected with warning bell face of support column, the both ends of support column evenly are provided with connects the horizontal piece, the top surface of connecting the horizontal piece is equipped with the cushion, the top surface of cushion is equipped with the poker rod, the top of poker rod and the welding of the warning bell recess board of warning bell face inner wall, the outer wall welding of poker rod has the pole of making a sound, the inner wall of warning bell face is equipped with the bell piece, the bottom welding of support column has the connection kicking block, the bottom of connecting the horizontal piece is equipped with the fixed column, the bottom welding of fixed column has the connection bottom piece, the bottom welding of connecting the kicking block has the telescopic link, the bottom welding of telescopic link has the loop bar.

As a preferred embodiment of the present invention: be equipped with the gaseous tester of one-level around connecting box A, be equipped with the gaseous tester of second grade around connecting box B, be equipped with tertiary gaseous tester around connecting box C, and gaseous tester of one-level, the gaseous tester of second grade and tertiary gaseous tester are provided with a plurality of, evenly distributed is around connecting box A, connecting box B and connecting box C.

As a preferred embodiment of the present invention: one side of connecting box A, connecting box B and connecting box C is equipped with the display lamp, and connecting box A, connecting box B and connecting box C's size etc. are big, and the axial lead of one-level expansion bend and second grade expansion bend is on same straight line, and one-level expansion bend all is equipped with two with the second grade expansion bend.

As a preferred embodiment of the present invention: the bottom surface of integrated circuit case is equipped with the fixed bolster dish and accomodates the groove, and the size in fixed bolster dish accomodates the groove and the big or small adaptation of tertiary expansion bend, and tertiary expansion bend is provided with threely, and is 120 between the tertiary expansion bend, and the even bottom surface that sets up at the integrated circuit case of tertiary expansion bend.

As a preferred embodiment of the present invention: and one end of the poke rod, which is close to the alarm bell surface, is provided with a striking rod, and the striking end of the striking rod is close to the bell plate.

As a preferred embodiment of the present invention: the other end of alarm bell A bottom loop bar respectively with connecting box A fixed connection, the other end of alarm bell B bottom loop bar respectively with connecting box B fixed connection, the other end of alarm bell C bottom loop bar respectively with connecting box C fixed connection.

As a preferred embodiment of the present invention: the top of connecting box A, connecting box B and connecting box C all is equipped with connecting grooves, and connecting grooves's size and two are connected the bottom block and are connected the big or small adaptation of kicking block.

As a preferred embodiment of the present invention: the inside of integrated circuit case is equipped with central controller, central controller passes through electric wire and one-level expansion bend, the second grade expansion bend, tertiary expansion bend, the gaseous tester of one-level, the gaseous tester of second grade, tertiary gaseous tester, data analyzer and information collector electric connection, power supply battery and one-level gaseous tester, the gaseous tester of second grade, tertiary gaseous tester passes through electric wire electric connection, the gaseous tester of one-level and alarm bell A and display lamp electric connection, the gaseous tester of second grade and alarm bell B and display lamp electric connection, tertiary gaseous tester and alarm bell C and display lamp electric connection.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the gas alarm controller and the control method thereof, when the gas alarm controller is not used, the plurality of alarms can be directly stored through the connecting grooves, when gas leaks, the alarms can be directly stretched under the action of the telescopic rods, so that the gas alarm controller is convenient to integrally shrink, fold and carry, and when the gas alarm controller is used, the gas alarm controller is convenient to use, and the use in various occasions can be met.

2. According to the gas alarm controller and the control method thereof, gas leakage can be predicted in the sense of hearing and vision through the double alarm mode of the alarm and the display lamp, meanwhile, gas leakage amount with different concentrations can be effectively alarmed through double alarm of the multi-level alarm and the display lamp, accurate alarm can be guaranteed, people can be reminded through various modes, and the gas alarm controller can prevent danger in time, well reduce danger brought to people due to gas leakage, and reduce property loss and disasters.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of an overall three-dimensional structure of a gas alarm controller and a control method thereof;

FIG. 2 is a schematic view of a portion of an alarm bell in a gas alarm controller and a method of controlling the same;

FIG. 3 is a schematic three-dimensional structure of an alarm bell in a gas alarm controller and a method for controlling the same;

fig. 4 is a schematic structural view of internal connection of an alarm bell in a gas alarm controller and a control method thereof.

Fig. 5 is a partial configuration view of a sounding portion of an alarm bell in a gas alarm controller and a control method thereof.

Fig. 6 is a schematic bottom view of the alarm controller in the gas alarm controller and the control method thereof.

Fig. 7 is a schematic structural diagram of an overall circuit connection in a gas alarm controller and a control method thereof.

In the figure: 1. an alarm bell A; 2. an alarm bell B; 3. an alarm bell C; 4. a top panel A; 5. a connecting box A; 6. a top panel B; 7. a connecting box B; 8. a top panel C; 9. a connecting box C; 10. a display lamp; 11. connecting a sleeve disc; 12. a top connection disc; 13. a comprehensive circuit box; 14. a primary gas tester; 15. a primary expansion device; 16. a secondary expansion device; 17. a three-stage expansion device; 18. fixing a cushion disc; 19. alarm bell surface; 20. a support pillar; 21. a connecting groove; 22. a poke rod; 23. cushion blocks; 24. connecting the transverse blocks; 25. fixing a column; 26. a groove plate of an alarm bell; 27. connecting the bottom block; 28. connecting the top block; 29. a telescopic rod; 30. a loop bar; 31. a sounding rod is arranged; 32. a weight plate; 33. a fixed pad accommodating groove; 34. a central controller; 35. a power supply battery; 36. an electric wire; 37. a data analyzer; 38. an information collector; 39. a secondary gas tester; 40. three-stage gas tester.

Detailed Description

Referring to fig. 1-7, in the embodiment of the present invention, a gas alarm controller and a control method thereof includes a connection box a5, an alarm bell a1, a support column 20, and a three-stage expansion piece 17, wherein a top panel a4 is sleeved on a top surface of the connection box a5, an alarm bell a1 is disposed on a top surface of the top panel a4, the alarm bell a1 can alarm low-concentration gas leakage, a primary expansion piece 15 is disposed on a bottom surface of the connection box a5, the primary expansion piece 15 mainly has an expansion effect, so that the connection box a5 can expand and contract, a bottom end of the primary expansion piece 15 is inserted into the top panel B6, a bottom surface of the top panel B6 is sleeved with the connection box B7, a bottom surface of the top panel B6 is provided with an alarm bell B2, the alarm bell B2 mainly has an alarm effect of medium-concentration gas leakage, a bottom surface of the connection box B7 is provided with a secondary expansion piece 16, and the secondary expansion piece 16 mainly has an expansion effect, the connecting box B7 can play a role in stretching, the bottom end of the secondary expansion piece 16 is ensured to be spliced with the top surface plate C8, the bottom surface of the top surface plate C8 is sleeved with the connecting box C9, the bottom surface of the connecting box C9 is provided with the connecting sleeve plate 11, the bottom surface of the connecting sleeve plate 11 is sleeved with the jacking plate 12, the connecting sleeve plate 11 is matched with the jacking plate 12 mutually, the connecting sleeve plate 11 is sleeved with the jacking plate 12 mutually, the bottom surface of the jacking plate 12 is sleeved with the integrated circuit box 13, the integrated circuit box 13 is convenient for processing integrated circuits, the integrated circuit box 13 is sleeved with the three-stage expansion piece 17, the three-stage expansion piece 17 can play a role in stretching and supporting, the bottom is convenient for supporting, the bottom surface of the three-stage expansion piece 17 is welded with the fixing pad 18, the top end of the supporting column 20 is fixedly connected with the alarm bell face 19, the two ends of the supporting column 20 are uniformly provided with the connecting transverse, can play the effect of connection, simultaneously can be convenient for placing of cushion 23, the top surface of connecting horizontal bar 24 is equipped with cushion 23, the top surface of cushion 23 is equipped with poker rod 22, poker rod 22's top and the welding of alarm bell recess board 26 of alarm bell face 19 inner wall, poker rod 22's outer wall welding has the pole 31 of making a sound, the pole 32 of making a sound that strikes that makes a sound 31 can be direct, play the effect of sound warning, alarm bell face 19's inner wall is equipped with the bell piece 32, the bottom welding of support column 20 has the top of connecting block 28, the effect of connecting block 28, be for playing the effect of connecting, the bottom of connecting horizontal bar 24 is equipped with fixed column 25, fixed column 25 can be convenient for connect the support of horizontal bar 24, the bottom welding of fixed column 25 has connection bottom block 27, the bottom welding of connecting block 28 has telescopic link 29, telescopic link 29 can play flexible effect, the bottom welding of telescopic link 29 has loop bar 30.

Referring to fig. 1, 4, 5 and 6, the first-stage gas tester 14 is disposed around the connection box a5, the second-stage gas tester 39 is disposed around the connection box B7, the third-stage gas tester 40 is disposed around the connection box C9, and a plurality of first-stage gas testers 14, second-stage gas testers 39 and third-stage gas testers 40 are disposed, and the first-stage gas tester 14, second-stage gas testers 39 and third-stage gas testers are uniformly distributed around the connection box a5, connection box B7 and connection box C9 for detecting gas leaking at different concentrations. Connecting box A5, one side of connecting box B7 and connecting box C9 is equipped with display lamp 10, display lamp 10 can play the effect of vision, play the effect of reminding and reporting to the police, and connecting box A5, connecting box B7 and connecting box C9's size etc. are big, and the axial lead of one-level expansion bend 15 and second grade expansion bend 16 is on same straight line, can be convenient for holistic accomodating, one-level expansion bend 15 all is equipped with two with second grade expansion bend 16. The bottom surface of integrated circuit case 13 is equipped with fixed pad dish and accomodates groove 33, and fixed pad dish accomodates groove 33 can be so that the fixed pad dish accomodate, and the fixed pad dish accomodates the size of groove 33 and the big or small adaptation of tertiary expansion bend 17, and tertiary expansion bend 17 is provided with threely, and tertiary expansion bend 17 can play flexible effect, and is 120 between the tertiary expansion bend 17, and tertiary expansion bend 17 evenly sets up the bottom surface at integrated circuit case 13. The end of the tap rod 22 close to the alarm bell surface 19 is provided with a rattle rod 31, the tap rod 22 can play a role of supporting the rattle rod 31, and the rattle end of the rattle rod 31 is close to the weight plate 32. The other end of the loop bar 30 at the bottom of the alarm bell A1 is fixedly connected with a connecting box A5, the other end of the loop bar 30 at the bottom of the alarm bell B2 is fixedly connected with a connecting box B7, and the other end of the loop bar 30 at the bottom of the alarm bell C3 is fixedly connected with a connecting box C9. Connecting box A5, connecting box B7 and connecting box C9's top all is equipped with connecting groove 21, and connecting groove 21 can be convenient for accomodating of alarm bell, and connecting groove 21's size and two be connected bottom block 27 and the big or small adaptation of being connected the kicking block 28.

Referring to fig. 7, a central controller 34 is disposed inside the integrated circuit box 13, the central controller 34 is electrically connected to the first stage expansion device 15, the second stage expansion device 16, the third stage expansion device 17, the first stage gas tester 14, the second stage gas tester 39, the third stage gas tester 40, the data analyzer 37 and the information collector 38 through wires 36, the power supply battery 35 is electrically connected to the first stage gas tester 14, the second stage gas tester 39 and the third stage gas tester 40 through wires 36, the central controller 34 can perform overall control of the circuit, the first stage gas tester 14 is electrically connected to the alarm bell a1 and the display lamp 10, the first stage gas tester 14 performs detection of low concentration gas leakage, the alarm bell a1 and the display lamp 10 perform first stage alarm, the second stage gas tester 39 is electrically connected to the alarm bell B2 and the display lamp 10, the second stage gas tester 39 performs detection of medium concentration gas leakage, alarm bell B2 and display lamp 10 play the second grade warning effect, tertiary gas tester 40 and alarm bell C3 and display lamp 10 electric connection, tertiary gas tester 40 plays the gas leakage's of high concentration detection effect, and alarm bell C3 and display lamp 10 play tertiary warning effect.

The invention relates to a gas alarm controller and a control method thereof, which comprises a gas alarm controller 1 and an alarm bell A; 2. an alarm bell B; 3. an alarm bell C; 4. a top panel A; 5. a connecting box A; 6. a top panel B; 7. a connecting box B; 8. a top panel C; 9. a connecting box C; 10. a display lamp; 11. connecting a sleeve disc; 12. a top connection disc; 13. a comprehensive circuit box; 14. a primary gas tester; 15. a primary expansion device; 16. a secondary expansion device; 17. a three-stage expansion device; 18. fixing a cushion disc; 19. alarm bell surface; 20. a support pillar; 21. a connecting groove; 22. a poke rod; 23. cushion blocks; 24. connecting the transverse blocks; 25. fixing a column; 26. a groove plate of an alarm bell; 27. connecting the bottom block; 28. connecting the top block; 29. a telescopic rod; 30. a loop bar; 31. a sounding rod is arranged; 32. a weight plate; 33. a fixed pad accommodating groove; 34. a central controller; 35. a power supply battery; 36. an electric wire; 37. a data analyzer; 38. an information collector; 39. a secondary gas tester; 40. the components of the three-stage gas tester are all universal standard components or components known to those skilled in the art, and the structure and the principle of the three-stage gas tester are known to those skilled in the art through technical manuals or through routine experimental methods.

The working principle of the invention is as follows: when the gas leakage detector is used, under the action of the central controller 34, the three-stage expansion piece 17 can be effectively controlled to achieve the effect of extension, so that the fixed cushion disc 18 can be effectively extended, and then the function of integral support can be achieved, when gas leakage occurs, the central controller 34 can achieve the effect of overall control of a circuit, the first-stage gas tester 14 is electrically connected with the alarm bell A1 and the display lamp 10, the first-stage gas tester 14 performs the detection effect of low-concentration gas leakage, then the alarm bell A1 and the display lamp 10 achieve the effect of first-stage alarm, the sounding rod 31 in the alarm bell A1 knocks the bell plate 32 to achieve the sound reminding, the display lamp 10 emits light to achieve the visual reminding, when the gas leakage continues to increase, the second-stage gas tester 39 is electrically connected with the alarm bell B2 and the display lamp 10, and the second-stage gas tester 39 achieves the detection effect of medium-concentration gas leakage, the primary expansion piece 15 plays a role in extension, the sounding rod 31 in the alarm bell B2 strikes the bell plate 32 to play a role in sound reminding, the display lamp 10 emits light to play a role in visual reminding, the sound is increased, the display lamp 10 emits more light to further arouse alertness, the alarm bell B2 and the display lamp 10 play a role in secondary alarm, when gas leaks to a high concentration, the tertiary gas tester 40 is electrically connected with the alarm bell C3 and the display lamp 10, the tertiary gas tester 40 plays a role in detecting high-concentration gas leakage, the secondary expansion piece 16 also plays a role in extension, the sounding rod 31 in the alarm bell C3 strikes the bell plate 32 to play a role in sound reminding, the display lamp 10 emits light to play a role in visual reminding, the sound reaches the maximum, then the display lamp 10 emits light, the lamp is fully bright to arouse alertness to the highest level, the alarm bell C3 and the display lamp 10 play a role in tertiary alarm function, when gas leakage is blocked, the whole gas alarm controller can be integrally contracted, folded and portable, and then the gas alarm controller can be used conveniently in various occasions.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. A gas alarm controller and a control method thereof comprise a connecting box A (5), an alarm bell A (1), a support column (20) and a three-level expansion piece (17), and are characterized in that the top surface of the connecting box A (5) is sleeved with a top surface plate A (4), the top surface of the top surface plate A (4) is provided with the alarm bell A (1), the bottom surface of the connecting box A (5) is provided with a first-level expansion piece (15), the bottom end of the first-level expansion piece (15) is spliced with a top surface plate B (6), the bottom surface of the top surface plate B (6) is sleeved with a connecting box B (7), the bottom surface of the top surface plate B (6) is provided with an alarm bell B (2), the bottom surface of the connecting box B (7) is provided with a second-level expansion piece (16), the bottom end of the second-level expansion piece (16) is spliced with a top surface plate C (8), and the bottom surface of the top surface plate C (8) is sleeved with a connecting box C, the bottom surface of the connecting box C (9) is provided with a connecting sleeve disc (11), the bottom surface of the connecting sleeve disc (11) is sleeved with a top connecting disc (12), the bottom surface of the top connecting disc (12) is sleeved with an integrated circuit box (13), the integrated circuit box (13) is sleeved with a three-stage expansion piece (17), the bottom surface of the three-stage expansion piece (17) is welded with a fixed pad disc (18), the top end of a supporting column (20) is fixedly connected with an alarm bell surface (19), the two ends of the supporting column (20) are uniformly provided with connecting transverse blocks (24), the top surface of each connecting transverse block (24) is provided with a cushion block (23), the top surface of each cushion block (23) is provided with a poking rod (22), the top end of each poking rod (22) is welded with an alarm bell groove plate (26) on the inner wall of the alarm bell surface (19), the outer wall of each poking rod (22) is welded, the alarm bell is characterized in that bell plates (32) are arranged on the inner wall of the alarm bell surface (19), a connecting top block (28) is welded at the bottom end of the supporting column (20), a fixing column (25) is arranged at the bottom end of the connecting transverse block (24), a connecting bottom block (27) is welded at the bottom end of the fixing column (25), a telescopic rod (29) is welded at the bottom end of the connecting top block (28), and a loop bar (30) is welded at the bottom end of the telescopic rod (29).

2. The gas alarm controller and the control method thereof according to claim 1, wherein the first-stage gas tester (14) is arranged around the connection box A (5), the second-stage gas tester (39) is arranged around the connection box B (7), the third-stage gas tester (40) is arranged around the connection box C (9), and the first-stage gas tester (14), the second-stage gas tester (39) and the third-stage gas tester (40) are provided with a plurality of gas testers which are uniformly distributed around the connection box A (5), the connection box B (7) and the connection box C (9).

3. The gas alarm controller and the control method thereof according to claim 1, wherein a display lamp (10) is arranged on one side of the connecting box A (5), the connecting box B (7) and the connecting box C (9), the connecting box A (5), the connecting box B (7) and the connecting box C (9) are as large as one another, the axial lines of the primary expansion piece (15) and the secondary expansion piece (16) are on the same straight line, and two primary expansion pieces (15) and two secondary expansion pieces (16) are arranged.

4. The gas alarm controller and the control method thereof according to claim 1, wherein the bottom surface of the integrated circuit box (13) is provided with three fixing pad accommodating grooves (33), the size of the fixing pad accommodating grooves (33) is matched with that of the three-stage expanders (17), the number of the three-stage expanders (17) is 120 degrees, and the three-stage expanders (17) are uniformly arranged on the bottom surface of the integrated circuit box (13).

5. A gas alarm controller and its control method according to claim 1, characterized in that the end of the tap lever (22) near the alarm bell surface (19) is provided with a striking rod (31), and the striking end of the striking rod (31) is near the weight plate (32).

6. The gas alarm controller and the control method thereof according to claim 1, wherein the other ends of the loop bars (30) at the bottom of the alarm bell A (1) are respectively and fixedly connected with the connecting box A (5), the other ends of the loop bars (30) at the bottom of the alarm bell B (2) are respectively and fixedly connected with the connecting box B (7), and the other ends of the loop bars (30) at the bottom of the alarm bell C (3) are respectively and fixedly connected with the connecting box C (9).

7. A gas alarm controller and its control method according to claim 1, characterized in that the top of the connection box a (5), the connection box B (7) and the connection box C (9) are all provided with a connection groove (21), and the size of the connection groove (21) is adapted to the size of the two connection bottom blocks (27) and the connection top block (28).

8. The gas alarm controller and the control method thereof according to claim 1, wherein a central controller (34) is arranged inside the integrated circuit box (13), the central controller (34) is electrically connected with a primary expansion piece (15), a secondary expansion piece (16), a tertiary expansion piece (17), a primary gas tester (14), a secondary gas tester (39), a tertiary gas tester (40), a data analyzer (37) and an information collector (38) through wires (36), a power supply battery (35) is electrically connected with the primary gas tester (14), the secondary gas tester (39) and the tertiary gas tester (40) through wires (36), the primary gas tester (14) is electrically connected with the alarm bell A (1) and the display lamp (10), the secondary gas tester (39) is electrically connected with the alarm bell B (2) and the display lamp (10), the three-level gas tester (40) is electrically connected with the alarm bell C (3) and the display lamp (10).