CN114639227A

CN114639227A - Gas detection alarm

Info

Publication number: CN114639227A
Application number: CN202210132736.9A
Authority: CN
Inventors: 廖玲艳
Original assignee: Shenzhen Longsin Intelligent Technology Co ltd
Current assignee: Shenzhen Longsin Intelligent Technology Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-06-17
Anticipated expiration: 2042-02-14
Also published as: CN114639227B

Abstract

The application discloses gaseous detection alarm relates to alarm device's technical field. The alarm comprises a mounting box and an alarm body arranged in the mounting box, wherein a pressure sensor is arranged on the alarm body, a supporting rod and a driving rod are arranged in the mounting box, one end of the supporting rod is abutted with a pressing mechanism abutted against the pressure sensor, the limiting mechanism is used for limiting the displacement distance of the supporting rod, and the resetting mechanism is used for resetting the supporting rod. Pressing means drive branch and pressure sensor butt to make the gas detection alarm report to the police, the displacement distance of spacing subassembly restriction branch, pressure when control branch and pressure sensor butt reduces pressure sensor and transships and receive the possibility of damage, and canceling release mechanical system can realize button mechanism automatic re-setting and stop the warning, need not that the staff is manual to reset, operates when being convenient for next report to the police, has guaranteed the normal use of gas detection alarm.

Description

Gas detection alarm

Technical Field

The application relates to the technical field of alarm devices, in particular to a gas detection alarm.

Background

The gas detection alarm can detect the concentration of combustible gas, toxic gas and composite gas, converts the detected gas concentration into an electric signal, and sends out an alarm signal when the gas concentration reaches an alarm point, so that early warning is realized, and sudden situations can be quickly coped with.

In the related art, the gas detection alarm is generally started by pressing a button, when the button is pressed, the elastic sheet is in contact with the alarm, the gas detection alarm starts to give an alarm, when the button is stopped to be pressed, the button is rebounded and reset through the elastic sheet, and the gas detection alarm stops giving an alarm.

Because the button among the correlation technique resets through the shell fragment resilience, the shell fragment produces inefficacy easily, leads to the button to press or break down easily when resetting, has reduced the life of gas detection alarm, influences the normal use of gas detection alarm.

Disclosure of Invention

In order to guarantee the normal use of gaseous detection alarm, this application provides a gaseous detection alarm.

The application provides a gaseous detection alarm adopts following technical scheme:

the utility model provides a gas detection alarm, is in including mounting box and setting the inside alarm body of mounting box, be provided with pressure sensor on the alarm body, be provided with branch, drive in the mounting box the one end of branch with pressing means, the restriction of pressure sensor butt the stop gear of the displacement distance of branch and messenger the canceling release mechanical system that branch resets.

Through adopting above-mentioned technical scheme, pressing means drive branch and pressure sensor butt, so that the gaseous detection alarm reports to the police, when branch and pressure sensor butt, spacing subassembly restriction branch's displacement distance, pressure when control branch and pressure sensor butt, reduce pressure sensor and transship and receive the possibility of damage, when stopping exerting pressure to pressing means, canceling release mechanical system can realize key mechanism automatic re-setting and stop the warning, need not staff's manual resetting, operate when being convenient for next warning, the normal use of gaseous detection alarm has been guaranteed.

Optionally, pressing means sets up in the bottom of mounting box, pressing means includes the button, connects the button with the coupling assembling and the drive of branch coupling assembling carries out the lifting unit who goes up and down along vertical direction, vertical direction drive lifting unit goes up and down can be followed to the button.

Through adopting above-mentioned technical scheme, pressing means sets up in the bottom of mounting box, and the user need upwards press the button along vertical direction, and key drive lifting unit goes up and down along vertical direction, and lifting unit redrives coupling assembling and drives branch and support and press pressure sensor, presses the vertical upwards of direction, has reduced the emergence of the phenomenon of touching by mistake of gas detection alarm, has reduced staff's work load, has improved the life of gas detection alarm.

Optionally, lifting unit includes lift post, slip cover and spliced pole, the inner wall of slip cover is provided with first slider, the periphery of lift post along vertical direction seted up with the first spout of first slider looks adaptation, first spout sets up to the spiral, the top and the bottom of first spout all are provided with spacing portion, the slip cover passes through first slider with lift post sliding connection, the one end of spliced pole with the top fixed connection of lift post, the other end runs through along vertical direction the slip cover, button cavity sets up, can overlap according to the key and establish on the lift post, the top of button with first slider is close to the one side butt of mounting box bottom, lifting unit with coupling assembling rotates the connection.

Through adopting above-mentioned technical scheme, button and first slider butt, when upwards pressing the button along vertical direction, the button can promote first slider along first spout rebound, the lift post is rotatory and drive the spliced pole along the axial of lift post rotatory, the condition that the user mistake touched the gas detection alarm has been reduced and has taken place, when treating that first slider removes the top of first spout, first slider and spacing portion butt, continue to press the button, the spliced pole drives coupling assembling and moves along vertical direction, the spliced pole drives the direction motion of branch towards pressure sensor, both reduced the user mistake and touched and also not influenced the normal use of gas detection alarm.

Optionally, stop gear is including setting up outside spacing cover of lifting unit and second slider, the bottom of spacing cover with the inner wall fixed connection of the bottom of mounting box, the spliced pole is kept away from the one end of lift post is run through spacing cover with coupling assembling connects, the second slider sets up spacing cover is close to one side of spliced pole, spacing cover is used for control the displacement of spliced pole.

Through adopting above-mentioned technical scheme, stop gear controls the displacement of spliced pole, has reduced the condition that the user touched gaseous detection alarm by mistake and has taken place to reduced because of branch is too big to pressure sensor's pressure, and the phenomenon that produces pressure sensor damage takes place, improved the life of gaseous detection alarm.

Optionally, the second spout has been seted up along the horizontal direction in the periphery of spliced pole, the opening orientation of second spout is kept away from the orientation setting of spliced pole periphery, the third spout has been seted up along vertical direction in the periphery of spliced pole, the opening orientation of third spout is kept away from the orientation setting of spliced pole periphery, the one end of third spout with the second spout intercommunication, the second slider with the second spout with third spout looks adaptation, spacing cover passes through the second slider with spliced pole sliding connection.

Through adopting above-mentioned technical scheme, when key drive slip cap rebound, the slip cap drives the lift post and rotates, the lift post drives the spliced pole and rotates along the axial, the second slider passes through second spout and spliced pole sliding connection, when first slider and spacing portion butt, the second slider passes through third spout and spliced pole sliding connection, the spliced pole is along vertical direction rebound, thereby drive branch and remove towards pressure sensor's direction, the performance that prevents the mistake and touch of gas detection alarm has further been improved.

Optionally, a partition plate is vertically arranged between the alarm body and the pressing mechanism, a slope is formed in one side, close to the pressing mechanism, of the partition plate, the slope is arranged along the direction, towards the pressing mechanism, of the partition plate in an inclined mode, one end, far away from the pressing mechanism, of the support rod is abutted to the inclined surface of the slope, and the pressure sensor is arranged at the top end of the slope.

Through adopting above-mentioned technical scheme, the one end on branch and the inclined plane butt on slope, pressing means drive branch rebound, and branch removes along slope towards pressure sensor's direction, has improved the stability of branch to improve the stability of butt between branch and the pressure sensor, guaranteed the normal use of gas detection alarm.

Optionally, coupling assembling includes connecting block and articulated seat, pressure sensor's one end is kept away from to branch is passed through articulated seat with the connecting block is connected, the connecting block is close to one side of spliced pole with the spliced pole rotates to be connected.

Through adopting above-mentioned technical scheme, the connecting block rotates with the spliced pole to be connected, it takes place along with the rotation of spliced pole and the pivoted phenomenon to have reduced the connecting block, and then reduced branch and taken place pivoted possibility, do not influence the normal use of gas detection alarm, pressure sensor's one end is kept away from with the connecting block through articulated seat articulated to branch, make branch remove along the horizontal direction when following vertical direction motion, make branch and inclined plane keep the butt, and then guaranteed the normal use of gas detection alarm.

Optionally, the reset mechanism includes a first elastic element, the first elastic element is disposed between the limiting cover and the sliding cover, and two ends of the first elastic element are fixedly connected to the limiting cover and the sliding cover.

Through adopting above-mentioned technical scheme, when exerting vertical ascending power to the button, the vertical direction rebound is also followed to the sliding cover, first elastic component is in compression state, when loosening the button, first elastic component takes place to kick-back, promote the sliding cover and move towards the direction of keeping away from spacing cover, make pressing means get back to initial position, it stops the warning to need not staff's manual operation messenger gas detection alarm, staff's work load has been reduced, the convenience of use and the life of gas detection alarm have been improved.

Optionally, a limiting ring is arranged on the periphery of the key, the limiting ring is arranged at one end, close to the lifting assembly, of the key, and one side, close to the bottom of the mounting box, of the limiting ring can be abutted to the inner wall of the bottom of the mounting box.

Through adopting above-mentioned technical scheme, the phenomenon that the spacing ring can reduce the button and drop from the mounting box takes place, has further guaranteed this gas detection alarm's normal use.

Optionally, the reset mechanism further includes a reset ring disposed on the periphery of the key, and the reset ring is disposed at one end of the key, which is far away from the first slider.

Through adopting above-mentioned technical scheme, the user helps with accelerating the reduction of lifting unit through the downward pulling button of ring that resets, further improves the speed that resets of branch, makes the gaseous detection alarm rapid stop report to the police, has practiced thrift the energy, has reduced staff's work load to the next use of the gaseous detection alarm of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pressing mechanism drives the supporting rod to abut against the pressure sensor so as to enable the gas detection alarm to give an alarm, the limiting assembly limits the displacement distance of the supporting rod, the pressure when the supporting rod abuts against the pressure sensor is controlled, the possibility that the pressure sensor is damaged due to overload is reduced, the resetting mechanism can realize automatic resetting of the button mechanism and stop alarming, manual resetting of workers is not needed, operation during next alarming is facilitated, and normal use of the gas detection alarm is guaranteed;

2. the lifting column rotates along the axial direction of the lifting column and drives the connecting column to rotate, the situation that a user touches the gas detection alarm by mistake is reduced, the button is continuously pressed, the connecting column drives the connecting component to move along the vertical direction, and the connecting column drives the supporting rod to move towards the direction of the pressure sensor, so that the situation that the user touches by mistake and the normal use of the gas detection alarm is not influenced is reduced;

3. when applying vertical ascending power to the button, the sliding cover also moves upwards along vertical direction, and first elastic component is in compression state, and when loosening the button, first elastic component takes place to kick-back, promotes the sliding cover and moves towards the direction of keeping away from spacing cover, makes pressing means get back to initial position, need not staff's manual operation and makes the gaseous detection alarm stop the warning, has reduced staff's work load, has improved the convenience of use and the life of gaseous detection alarm.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment of the present application.

Fig. 2 is a schematic structural diagram of the entire structure of the present application after hiding the cover plate.

Fig. 3 is a schematic structural diagram mainly showing a separator in the embodiment of the present application.

FIG. 4 is a sectional view of a front view of the overall structure of an embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Fig. 6 is a schematic structural diagram mainly showing a pressing mechanism in the embodiment of the present application.

Description of reference numerals:

1. mounting a box; 11. an alarm body; 12. a pressure sensor; 13. a partition plate; 131. a slope; 1311. a fourth chute; 14. a first cavity; 15. a second cavity; 16. a warning light; 17. a horn; 18. a housing; 19. a cover plate; 191. locking the bolt; 2. a strut; 21. a third slider; 3. pressing a key; 31. a limiting ring; 4. a connecting assembly; 41. connecting blocks; 42. a hinged seat; 5. a lifting assembly; 51. a lifting column; 511. a first chute; 52. a sliding cover; 521. a first slider; 522. a baffle plate; 53. connecting columns; 531. a second chute; 532. a third chute; 54. a limiting part; 6. a limiting cover; 61. a second slider; 71. a first elastic member; 72. a second elastic member; 73. a reset ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a gas detection alarm.

Referring to fig. 1 and 2, the gas detection alarm comprises a mounting box 1, an alarm body 11 for alarming, a supporting rod 2 for opening the alarm body 11, a pressing mechanism for driving the supporting rod 2 to move, a limiting mechanism for limiting the displacement distance of the supporting rod 2 and a resetting mechanism for resetting the supporting rod 2.

Referring to fig. 1, the gas detection alarm is installed on the wall, the mounting box 1 comprises a shell 18 and a cover plate 19, a locking bolt 191 is arranged between the cover plate 19 and the shell 18, the cover plate 19 is detachably connected with the shell 18 through the locking bolt 191, the locking bolt 191 penetrates through the cover plate 19 in the horizontal direction and is in threaded connection with the shell 18, and one vertical side of the mounting box 1 is fixedly connected with the wall.

Referring to fig. 2, vertical baffle 13 that is provided with in mounting box 1, baffle 13 is on a parallel with the wall setting, the inner wall fixed connection of baffle 13 four sides and mounting box 1, baffle 13 divide into first cavity 14 and second cavity 15 with the inside of mounting box 1, wherein, the wall setting is kept away from to first cavity 14, for the convenience of the user uses the gas detection alarm, pressing means sets up in first cavity 14, alarm body 11 sets up in second cavity 15, warning light 16 is installed to one side that mounting box 1 kept away from the wall, loudspeaker 17 is installed to the bottom of second cavity 15.

Referring to fig. 2 and 3, a slope 131 is formed in one side, close to the pressing mechanism, of the partition 13, the slope 131 is obliquely and downwardly arranged along the partition 13 towards the pressing mechanism, one end of the supporting rod 2 is hinged to the pressing mechanism, a third slider 21 is fixedly connected to the other end of the supporting rod 2, one end, close to the pressing mechanism, of the supporting rod 2 is lower than the other end of the supporting rod 2 at an initial position, a fourth sliding groove 1311 matched with the third slider 21 is formed in the slope of the slope 131, a pressure sensor 12 is arranged at the top end of the fourth sliding groove 1311, the pressure sensor 12 is embedded into the partition 13, one side, far away from the pressing mechanism, of the pressure sensor 12 is fixedly connected with the alarm body 11, the pressing mechanism drives the supporting rod 2 to move upwards along the fourth sliding groove 1311 and abut against the pressure sensor 12, and in order to improve the smoothness of the movement of the supporting rod 2 in the fourth sliding groove 1311, the third slider 21 is spherical.

Referring to fig. 2, the pressing mechanism includes a button 3, a connecting assembly 4 connecting the button 3 and the supporting rod 2, and a lifting assembly 5 driving the connecting assembly 4 to lift along the vertical direction.

Wherein, coupling assembling 4 rotates with lifting unit 5 to be connected, coupling assembling 4 includes connecting block 41 and articulated seat 42, and the bottom and the lifting unit 5 of connecting block 41 rotate to be connected, and articulated seat 42 fixed connection is in the one side that connecting block 41 is close to baffle 13, and the articulated shaft of articulated seat 42 is along the horizontal direction and is on a parallel with the wall setting, and the one end that third slider 21 was kept away from to branch 2 is articulated through articulated seat 42 and connecting block 41.

Referring to fig. 4 and 5, the lifting assembly 5 includes a lifting column 51, a sliding cover 52 and a connecting column 53, a first slider 521 is disposed on an inner wall of the sliding cover 52, a first sliding slot 511 adapted to the first slider 521 is disposed on an outer periphery of the lifting column 51 along a vertical direction, the first sliding slot 511 is spiral, a limiting portion 54 is disposed at each of a top end and a bottom end of the first sliding slot 511, and the sliding cover 52 is slidably connected to the lifting column 51 through the first slider 521; the one end of spliced pole 53 and the top fixed connection of lift post 51, the other end along vertical direction run through sliding housing 52 and with sliding housing 52 sliding connection, for the stability that improves lift post 51 and go up and down, first slider 521 sets up to two, and first spout 511 sets up to two, and two first sliders 521 set up the inner wall at sliding housing 52 relatively.

Referring to fig. 5, a baffle 522 is provided at the bottom of the slide cover 52, the baffle 522 abuts the outer periphery of the key 3, and the bottom surface of the baffle 522 can abut the inner wall of the bottom of the mounting box 1; the one end that spliced pole 53 kept away from lift post 51 is connected with the bottom of connecting block 41 is rotated, and when lift post 51 rotated, lift post 51 drove spliced pole 53 and rotates in connecting block 41.

Referring to fig. 6, second spout 531 has been seted up along the horizontal direction in the periphery of spliced pole 53, and second spout 531 sets up the one end of keeping away from lift post 51 at spliced pole 53, and the periphery setting of spliced pole 53 is kept away from to the opening orientation of second spout 531, and third spout 532 has been seted up along vertical direction in the periphery of spliced pole 53, and the direction setting of spliced pole 53 periphery is kept away from to the notch orientation of third spout 532, and the top and the second spout 531 intercommunication of third spout 532.

Referring to fig. 5 and 6, 3 hollow settings of button, 3 settings of button are in the below of lift post 51, the phenomenon that the mistake that has reduced the gas detection alarm touched takes place, 3 can the cover of button are established on lift post 51, the periphery of button 3 is provided with spacing ring 31, spacing ring 31 fixed connection is in the one end that button 3 is close to lift post 51, the top of spacing ring 31 can with first slider 521 butt, button 3 promotes second slider 61 and then drives lift assembly 5 and go up and down along vertical direction, one side that spacing ring 31 is close to the mounting box 1 bottom and the top surface butt of baffle 522, the phenomenon that has reduced button 3 follow slide-out in the mounting box 1 takes place.

The limiting mechanism comprises a limiting cover 6 and a second sliding block 61, the limiting cover 6 is arranged outside the lifting assembly 5, the bottom of the limiting cover 6 is fixedly connected with the inner wall of the bottom of the mounting box 1, one end, far away from the lifting column 51, of the connecting column 53 sequentially penetrates through the sliding cover 52 and the limiting cover 6 and is connected with the connecting block 41, the second sliding block 61 is arranged on one side, close to the connecting column 53, of the limiting cover 6, the second sliding block 61 is matched with the second sliding groove 531 and the third sliding groove 532, and the limiting cover 6 is in sliding connection with the connecting column 53 through the second sliding block 61; in order to improve the stability of being connected between spacing cover 6 and the spliced pole 53, second slider 61 sets up to two, two second sliders 61 set up relatively on spacing cover 6, third spout 532 sets up to two, two third spouts 532 set up relatively, when second slider 61 is located the bottom of third spout 532, the third slider 21 and the pressure sensor 12 butt of branch 2 one end, first slider 521 and spacing portion 54 butt, button 3 stop movement, this stop gear has reduced pressure sensor 12 and has taken place the possibility of damaging because of overloading under the condition that does not influence the normal use of gas detection alarm, the life of gas detection alarm has been improved.

Referring to fig. 5 and 6, the reset mechanism includes a first elastic member 71 disposed between the limiting cover 6 and the sliding cover 52, a second elastic member 72 disposed between the sliding cover 52 and the bottom of the mounting box 1, and a reset ring 73 disposed on the periphery of the key 3, in this embodiment, the first elastic member 71 is a first compression spring, the first compression spring is sleeved on the periphery of the connecting post 53, one end of the first compression spring is fixedly connected to one side of the limiting cover 6 near the top of the sliding cover 52, and the other end of the first compression spring is fixedly connected to one side of the sliding cover 52 near the top of the limiting cover 6; in this embodiment, the second elastic element 72 is a second compression spring, the second compression spring is sleeved on the periphery of the case, one end of the second compression spring is fixedly connected to the bottom of the baffle 522, and the other end of the second compression spring is fixedly connected to the inner wall of the bottom of the mounting box 1.

The first compression spring and the second compression spring are in a free state when the key 3 is not pressed, when the key 3 is pressed upwards, the first compression spring is in a compression state, the second compression spring is in a stretching state, when the key 3 is stopped being pressed, the first compression spring pushes the sliding cover 52 to move downwards, and meanwhile, the second compression spring pulls the sliding cover 52 to move downwards, so that the resetting effect of the gas detection alarm is improved.

Referring to fig. 2 and 5, the reset ring 73 is disposed at the periphery of the key 3, the reset ring 73 is fixedly connected to one end of the key 3, which is far away from the first slider 521, the user can pull the key 3 downwards through the reset ring 73, and the limiting ring 31 on the key 3 abuts against the top of the pressing baffle 522, so as to drive the sliding cover 52 to move downwards, accelerate the resetting of the gas detection alarm, and prolong the service life of the gas detection alarm.

The implementation principle of the gas detection alarm in the embodiment of the application is as follows: when the gas detection alarm needs to be used, a user presses the key 3 along the vertical upward direction, the key 3 pushes the first slider 521 to move upwards along the first sliding groove 511 on the lifting column 51, the lifting column 51 drives the connecting column 53 to rotate, when the first slider 521 abuts against the limiting part 54, the connecting column 53 stops rotating, the key 3 is continuously pressed, the connecting column 53 moves upwards and drives the connecting block 41 to move upwards, the connecting block 41 drives the supporting rod 2 to move upwards along the direction of the fourth sliding groove 1311, when the second slider 61 on the limiting cover 6 abuts against the bottom of the fourth sliding groove 1311, the third slider 21 at one end of the supporting rod 2 abuts against the pressure sensor 12, the alarm body 11 starts to give an alarm, the warning lamp 16 flickers, the loudspeaker 17 gives out a warning sound, at the moment, under the action of the limiting mechanism, the pressure is continuously applied to the key 3, the connecting column 53 does not move, the pressure of the supporting rod 2 on the pressure sensor 12 is constant, the overload risk of the pressure sensor 12 is reduced, the pressure is stopped being exerted on the key 3, the resetting mechanism enables the gas detection alarm to reset automatically, the service life of the gas detection alarm is prolonged, and the normal use of the gas detection alarm is guaranteed.

The above is the preferred embodiment of the present application, and the protection scope of the present application is not limited thereby, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A gas detection alarm, characterized in that: the alarm device comprises a mounting box (1) and an alarm body (11) arranged inside the mounting box (1), wherein a pressure sensor (12) is arranged on the alarm body (11), a supporting rod (2) and a driving rod are arranged in the mounting box (1), one end of the supporting rod (2) is abutted to a pressing mechanism and a limiting mechanism of the pressure sensor (12) and is used for limiting the displacement distance of the supporting rod (2) and enabling the supporting rod (2) to reset through a resetting mechanism.

2. A gas detection alarm according to claim 1 wherein: pressing means sets up the bottom at mounting box (1), pressing means includes button (3), connects button (3) with coupling assembling (4) and the drive of branch (2) coupling assembling (4) carry out lifting unit (5) that go up and down along vertical direction, button (3) can be followed vertical direction drive lifting unit (5) and go up and down.

3. A gas detection alarm according to claim 2 wherein: the lifting component (5) comprises a lifting column (51), a sliding cover (52) and a connecting column (53), a first sliding block (521) is arranged on the inner wall of the sliding cover (52), a first sliding groove (511) matched with the first sliding block (521) is formed in the periphery of the lifting column (51) in the vertical direction, the first sliding groove (511) is spiral, limiting parts (54) are arranged at the top end and the bottom end of the first sliding groove (511), the sliding cover (52) is in sliding connection with the lifting column (51) through the first sliding block (521), one end of the connecting column (53) is fixedly connected with the top end of the lifting column (51), the other end of the connecting column penetrates through the sliding cover (52) in the vertical direction, the key (3) is arranged in a hollow mode, the key (3) can be sleeved on the lifting column (51), the top end of the key (3) is abutted to one side, close to the bottom of the mounting box (1), of the first sliding block (521), the lifting component (5) is rotationally connected with the connecting component (4).

4. A gas detection alarm according to claim 3 characterised in that: stop gear is including setting up outside spacing cover (6) and second slider (61) of lifting unit (5), the bottom of spacing cover (6) with the inner wall fixed connection of the bottom of mounting box (1), spliced pole (53) are kept away from the one end of lift post (51) is run through spacing cover (6) with coupling assembling (4) are connected, second slider (61) set up spacing cover (6) are close to one side of spliced pole (53), spacing cover (6) are used for control the displacement of spliced pole (53).

5. A gas detection alarm according to claim 4 characterised in that: second spout (531) have been seted up along the horizontal direction to the periphery of spliced pole (53), the opening orientation of second spout (531) is kept away from the direction setting of spliced pole (53) periphery, third spout (532) have been seted up along vertical direction to the periphery of spliced pole (53), the opening orientation of third spout (532) is kept away from the direction setting of spliced pole (53) periphery, the one end of third spout (532) with second spout (531) intercommunication, second slider (61) with second spout (531) with third spout (532) looks adaptation, spacing cover (6) are passed through second slider (61) with spliced pole (53) sliding connection.

6. A gas detection alarm according to claim 1 wherein: alarm body (11) with vertically between the pressing means be provided with baffle (13), baffle (13) are close to slope (131) have been seted up to one side of pressing means, slope (131) are followed baffle (13) orientation the direction slope of pressing means sets up downwards, branch (2) are kept away from pressing means's one end with the inclined plane butt of slope (131), pressure sensor (12) set up the top of slope (131).

7. A gas detection alarm according to claim 3 characterised in that: coupling assembling (4) are including connecting block (41) and articulated seat (42), the one end that pressure sensor (12) were kept away from in branch (2) is passed through articulated seat (42) with connecting block (41) are connected, connecting block (41) are close to one side of spliced pole (53) with spliced pole (53) are rotated and are connected.

8. A gas detection alarm according to claim 4 characterised in that: the resetting mechanism comprises a first elastic piece (71), the first elastic piece (71) is arranged between the limiting cover (6) and the sliding cover (52), and two ends of the first elastic piece (71) are fixedly connected with the limiting cover (6) and the sliding cover (52).

9. A gas detection alarm according to claim 2 wherein: the periphery of button (3) is provided with spacing ring (31), spacing ring (31) set up button (3) are close to the one end of lifting unit (5), spacing ring (31) are close to one side ability of mounting box (1) bottom with the inner wall butt of the bottom of mounting box (1).

10. A gas detection alarm according to claim 3 characterised in that: the reset mechanism further comprises a reset ring (73) arranged on the periphery of the key (3), and the reset ring (73) is arranged at one end, far away from the first sliding block (521), of the key (3).