CN214151953U

CN214151953U - Combustible gas alarm controller

Info

Publication number: CN214151953U
Application number: CN202120384916.7U
Authority: CN
Inventors: 姜燕; 徐辉; 邹健
Original assignee: Shandong Weian Intelligent Technology Co ltd; WEIHAI ALERT ELECTRONIC SCIENCE & TECHNOLOGY CO LTD
Current assignee: Shandong Weian Intelligent Technology Co ltd; WEIHAI ALERT ELECTRONIC SCIENCE & TECHNOLOGY CO LTD
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-09-07
Anticipated expiration: 2031-02-20

Abstract

The utility model provides a combustible gas alarm controller relates to alarm device technical field, this combustible gas alarm controller, including fixed plate and controller, the left side of fixed plate is connected with the fixed surface of wall body, the right side fixedly connected with guide bar of fixed plate, the tooth's socket has been seted up to one side of guide bar, the left side fixedly connected with mounting panel of controller, the position is provided with pre-installation mechanism between mounting panel and the fixed plate the right side of mounting panel and extension to mounting panel is run through in the one end activity of guide bar, square groove and L shape groove have been seted up respectively in the left side of mounting panel, the inside in L shape groove and square groove is linked together. The utility model discloses a set up fixture block, mounting panel, protecting crust and collar, it is troublesome to dismantle when having solved the maintenance, and violent dismantlement can lead to the fact the injury to the staff, and current combustible gas alarm controller lacks protection device moreover, causes screen or button on the controller to probably impaired problem.

Description

Combustible gas alarm controller

Technical Field

The application belongs to the technical field of alarm equipment, and particularly relates to a combustible gas alarm controller.

Background

The combustible gas alarm controller can receive signals of the detection probe, display measured values in real time, and when the measured values reach set alarm values, the control host sends out sound and light alarms, and meanwhile outputs control signals to prompt operators to take safety treatment measures in time or automatically start control equipment connected in advance so as to guarantee safety production.

Current combustible gas alarm controller is the screw installation, and the back is used for a long time, and the screw probably corrosion is difficult to dismantle, and it is troublesome to dismantle when having led to the maintenance, and violence dismantlement can cause the injury to the staff, and current combustible gas alarm controller lacks protection device moreover, causes screen or button on the controller probably impaired problem.

Disclosure of Invention

An object of the utility model is to provide a combustible gas alarm controller possesses the installation and dismantlement of being convenient for, easy operation, and protector can prevent that the controller from receiving serious damage, increases life's advantage to dismantle the trouble when solving the maintenance, violently dismantle and probably cause the injury to the staff, current combustible gas alarm controller lacks protection device moreover, causes screen or button on the controller to probably impaired problem, and the technical scheme that this application adopted is:

a combustible gas alarm controller comprises a fixed plate and a controller, wherein the left side of the fixed plate is fixedly connected with the surface of a wall body, the right side of the fixed plate is fixedly connected with a guide rod, one side of the guide rod is provided with a tooth socket, the left side of the controller is fixedly connected with a mounting plate, a preassembling mechanism is arranged between the mounting plate and the fixed plate, one end of the guide rod movably penetrates through the mounting plate and extends to the right side of the mounting plate, the left side of the mounting plate is respectively provided with a square groove and an L-shaped groove, the interior of the L-shaped groove is communicated with the interior of the square groove, the inner wall of the L-shaped groove is movably connected with the surface of an L-shaped rod, the bottom of the L-shaped rod is fixedly connected with a first spring, one end of the first spring is fixedly connected with the inner wall of the L-shaped groove, the right side of the controller is provided with a protection mechanism, and the upper part and the lower part of the fixed plate are respectively and movably provided with a first square shell and a second square shell, the opposite surfaces of the first square shell and the second square shell are fixedly connected with a first T-shaped rod, a sliding groove is formed in the position, corresponding to the first T-shaped rod, of the fixing plate, the surface of the first T-shaped rod is movably connected with the inner wall of the sliding groove, a second spring is fixedly connected with one end of the first T-shaped rod, one end of the second spring is fixedly connected with the inner wall of the sliding groove, extrusion blocks are fixedly connected with the right sides of the first square shell and the second square shell, a groove is formed in the right side of the first square shell, the inner wall of the groove is movably connected with the surface of the square block, a first rack is fixedly connected with the left side of the square block, a third spring is fixedly connected with the left side of the first rack, one end of the third spring is fixedly connected with the inner wall of the groove, a rectangular groove is formed in the position, corresponding to the first rack, of the second square shell, and a second rack is fixedly connected with the inside of the rectangular groove, one end of the first rack extends to the inside of the rectangular groove and is meshed with the second rack.

As a preferred technical scheme of the utility model, pre-installation mechanism includes the sleeve, the right side fixed connection of sleeve and fixed plate, the surperficial swing joint of telescopic inner wall and second T shape pole, the fixed surface of second T shape pole is connected with the fourth spring, the one end of fourth spring and the right side fixed connection of sleeve inner wall, the one end activity of second T shape pole run through the sleeve and be connected with the fixed surface of fly leaf, the surface of fly leaf and the left side swing joint of mounting panel, the right side fixedly connected with fixture block of fly leaf, the fixture block extend to the inside in square groove and with the fixed surface of L shape pole swing joint.

As an optimized technical scheme of the utility model, the rubber ring has been cup jointed in the surface activity of second T shape pole, the left side and the telescopic fixed surface of rubber ring are connected.

As a preferred technical scheme of the utility model, protection machanism includes the protecting crust, the inner wall of protecting crust and the surperficial swing joint of controller, the right side fixedly connected with collar of protecting crust, the guide bar activity runs through the inner wall of protecting crust and collar and extends to the right side of collar, the locked groove has been seted up to the inner wall of collar, the inside swing joint of locked groove has the locking piece, the surface of locking piece and the inner wall swing joint of tooth's socket, one side activity of collar is inlayed and is had the pull rod, the one end of pull rod is connected with the fixed surface of locking piece, the one end fixedly connected with fifth spring of locking piece, the one end of fifth spring and the inner wall fixed connection of locked groove, the right side of protecting crust has the protective cover through major axis swing joint.

As a preferred technical scheme of the utility model, the right side activity of protective cover is inlayed and is had the bull stick, the position department that the protective housing corresponds the bull stick has seted up special-shaped groove, the inside swing joint in special-shaped groove has the quarter butt, the one end of bull stick extends to the inside in special-shaped groove and is connected with the fixed surface of quarter butt.

As an optimal technical scheme of the utility model, the right side fixedly connected with sloping block of protecting crust, the surface of sloping block and the surperficial swing joint of extrusion piece.

As a preferred technical scheme of the utility model, the inside fixedly connected with gag lever post of recess, the equal activity of first rack and third spring is cup jointed on the surface of gag lever post.

Compared with the prior art, the utility model provides a combustible gas alarm controller possesses following beneficial effect:

1. the combustible gas alarm controller is characterized in that the controller is fixed on the mounting plate by arranging the protective shell, the mounting ring, the first square shell and the inclined block, the guide rod penetrates through the mounting plate to fix the controller, the mounting ring corresponds to the guide rod one by one, the guide rod is inserted into the mounting ring, the locking block and the pull rod are arranged inside the mounting ring, the locking block can be always contacted with the tooth socket under the action of the fifth spring in the inserting process of the guide rod, the protective shell can be fixed on the guide rod, after the protective cover is contacted with the controller, the protective shell is stopped to be pushed, the first square shell and the second square shell are stopped to be pushed, the inclined block is extruded by the extrusion block, the protective shell moves leftwards by the inclined block, the fourth spring is compressed, after the first rack is contacted with the second rack, the first square shell and the second square shell can be locked, and the controller can be protected by the protective shell, simultaneously locking piece and tooth's socket can be fixed the protecting crust, play certain fixed action to the controller, can be more firm with the controller is fixed through first side shell and second side shell, and just can be with first square and second square unblock through square and third spring, the effect that can protect the controller when having realized making things convenient for the controller installation and dismantling, it is troublesome to dismantle when having solved the maintenance, violently dismantle and probably cause the injury to the staff, and current combustible gas alarm controller lacks protection device, cause screen or button on the controller to probably impaired problem.

2. This combustible gas alarm control ware, through setting up second T shape pole, the fly leaf, fourth spring and fixture block, fix the mounting panel back on the guide bar, continue to promote the mounting panel, the mounting panel drives the fly leaf motion, after the fly leaf contacts with the rubber ring, under the pressure of mounting panel, the fixture block passes through inclined plane extrusion L shape pole, make L shape pole downstream, first spring compression, after the inclined plane of fixture block and L shape pole breaks away from, again under the reset action of first spring, L shape pole upstream, pin the fixture block, reached and can carry out the effect of pre-fixing to the controller earlier before fixing completely to the controller, solved and prevented when carrying out operation on next step, because the maloperation probably can make the problem that the controller dropped.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

FIG. 3 is a front sectional view of the guide bar of the present invention;

FIG. 4 is an enlarged view of the structure B in FIG. 3 according to the present invention;

FIG. 5 is a front sectional view of the first rack of the present invention;

fig. 6 is an enlarged view of the structure at C in fig. 5 according to the present invention.

In the figure: 1. a fixing plate; 2. a controller; 3. a wall body; 4. a guide bar; 5. a tooth socket; 6. mounting a plate; 7. a preassembly mechanism; 701. a sleeve; 702. a second T-bar; 703. a fourth spring; 704. a movable plate; 705. a clamping block; 8. a square groove; 9. an L-shaped slot; 10. an L-shaped rod; 11. a first spring; 12. a protection mechanism; 1201. a protective shell; 1202. a mounting ring; 1203. locking the groove; 1204. a locking block; 1205. a pull rod; 1206. a fifth spring; 1207. a protective cover; 13. a first square shell; 14. a second square shell; 15. a first T-bar; 16. a chute; 17. a second spring; 18. extruding the block; 19. a groove; 20. a square block; 21. a first rack; 22. a third spring; 23. a rectangular groove; 24. a second rack; 25. a rubber ring; 26. a rotating rod; 27. a special-shaped groove; 28. a short bar; 29. a sloping block; 30. a limiting rod.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The combustible gas alarm controller provided by the embodiment of the application is now explained. The combustible gas alarm controller is shown in figures 1-6:

a combustible gas alarm controller comprises a fixed plate 1 and a controller 2, wherein the left side of the fixed plate 1 is fixedly connected with the surface of a wall body 3, the right side of the fixed plate 1 is fixedly connected with a guide rod 4, one side of the guide rod 4 is provided with a tooth socket 5, the left side of the controller 2 is fixedly connected with a mounting plate 6, a preassembly mechanism 7 is arranged between the mounting plate 6 and the fixed plate 1, one end of the guide rod 4 movably penetrates through the mounting plate 6 and extends to the right side of the mounting plate 6, the left side of the mounting plate 6 is respectively provided with a square groove 8 and an L-shaped groove 9, the insides of the L-shaped groove 9 and the square groove 8 are communicated, the inner wall of the L-shaped groove 9 is movably connected with the surface of an L-shaped rod 10, the bottom of the L-shaped rod 10 is fixedly connected with a first spring 11, one end of the first spring 11 is fixedly connected with the inner wall of the L-shaped groove 9, the right side of the controller 2 is provided with a protection mechanism 12, a first square shell 13 and a second square shell 14 are movably arranged above and below the fixed plate 1 respectively, opposite surfaces of the first square shell 13 and the second square shell 14 are fixedly connected with a first T-shaped rod 15, a sliding groove 16 is arranged at a position of the fixed plate 1 corresponding to the first T-shaped rod 15, the surface of the first T-shaped rod 15 is movably connected with the inner wall of the sliding groove 16, one end of the first T-shaped rod 15 is fixedly connected with a second spring 17, one end of the second spring 17 is fixedly connected with the inner wall of the sliding groove 16, right sides of the first square shell 13 and the second square shell 14 are fixedly connected with an extrusion block 18, the right side of the first square shell 13 is provided with a groove 19, the inner wall of the groove 19 is movably connected with the surface of a square 20, the left side of the square 20 is fixedly connected with a first rack 21, and the left side of the first rack 21 is fixedly connected with a third spring 22, one end of the third spring 22 is fixedly connected with the inner wall of the groove 19, a rectangular groove 23 is formed in the position, corresponding to the first rack 21, of the second square shell 14, a second rack 24 is fixedly connected to the inside of the rectangular groove 23, and one end of the first rack 21 extends to the inside of the rectangular groove 23 and is meshed with the second rack 24.

Specifically, the preassembly mechanism 7 includes a sleeve 701, the sleeve 701 is fixedly connected to the right side of the fixing plate 1, the inner wall of the sleeve 701 is movably connected to the surface of a second T-shaped rod 702, the surface of the second T-shaped rod 702 is fixedly connected to a fourth spring 703, one end of the fourth spring 703 is fixedly connected to the right side of the inner wall of the sleeve 701, one end of the second T-shaped rod 702 movably penetrates through the sleeve 701 and is fixedly connected to the surface of a movable plate 704, the surface of the movable plate 704 is movably connected to the left side of the mounting plate 6, a fixture block 705 is fixedly connected to the right side of the movable plate 704, and the fixture block 705 extends into the square groove 8 and is movably connected to the surface of the L-shaped rod 10.

In this embodiment, after the mounting plate 6 is pushed to make the movable plate 704 contact the rubber ring 25, the L-shaped rod 10 is pressed by the fixture block 705 through the inclined surface under the action of the mounting plate 6, so that the L-shaped rod 10 moves downward, the first spring 11 is compressed, and after the inclined surface of the fixture block 705 is separated from the inclined surface of the L-shaped rod 10, the L-shaped rod 10 moves upward under the resetting action of the first spring 11 to lock the fixture block 705, so as to pre-mount the controller 2.

Specifically, the surface of the second T-shaped rod 702 is movably sleeved with a rubber ring 25, and the left side of the rubber ring 25 is fixedly connected with the surface of the sleeve 701.

In this embodiment, the rubber ring 25 is movably sleeved on the surface of the second T-shaped rod 702, and after the movable plate 704 contacts with the rubber ring 25, the mounting plate 6 still presses the movable plate 704, so that the rubber ring 25 can play a role in buffering and protecting, and the movable plate 704 is prevented from being damaged due to excessive pressing force.

Specifically, the protection mechanism 12 includes a protection shell 1201, the inner wall of the protection shell 1201 is movably connected with the surface of the controller 2, the right side of the protection shell 1201 is fixedly connected with a mounting ring 1202, the guide rod 4 movably penetrates through the inner walls of the protection shell 1201 and the mounting ring 1202 and extends to the right side of the mounting ring 1202, a locking groove 1203 is formed in the inner wall of the mounting ring 1202, a locking block 1204 is movably connected inside the locking groove 1203, the surface of the locking block 1204 is movably connected with the inner wall of the tooth space 5, a pull rod 1205 is movably embedded in one side of the mounting ring 1202, one end of the pull rod 1205 is fixedly connected with the surface of the locking block 1204, a fifth spring 1206 is fixedly connected with one end of the locking block 1204, one end of the fifth spring 1206 is fixedly connected with the inner wall of the locking groove 1203, and a protection cover 1207 is movably connected with the right side of the protection shell 1201 through a long shaft.

In this embodiment, the mounting ring 1202 fixedly connected to the surface of the protective shell 1201 is movably sleeved on the guide rod 4, the surface of the lock block 1204 is movably connected to the inner wall of the tooth space 5, and can be fixed when the protective shell 1201 is mounted, after the protective cover 1207 is in contact with the surface of the controller 2, the protective shell 1201 stops being pushed, the pressing block 18 fixed to the surface of the first square shell 13 and the second square shell 14 presses the inclined block 29, so that the protective shell 1201 moves leftwards, the protective shell 1201 presses the mounting plate 6, after the first square shell 13 and the second square shell 14 are fixed through the first rack 21 and the second rack 24, the controller 2 can be comprehensively fixed, the first square shell 13 and the second square shell 14 can be unlocked through the block 20, and the controller 2 is convenient to detach.

Specifically, the right side activity of protective cover 1207 is inlayed and is had bull stick 26, protection casing 1201 has seted up dysmorphism groove 27 corresponding position department of bull stick 26, the inside swing joint in dysmorphism groove 27 has short pole 28, the one end of bull stick 26 extends to the inside in dysmorphism groove 27 and is connected with the fixed surface of short pole 28.

In this embodiment, the pivoted lever 26 that protective cover 1207 surface activity was inlayed can rotate, drives the quarter butt 28 and rotates, after quarter butt 28 perpendicular to screen, upwards carries pull pivoted lever 26 and can open protective cover 1207, makes things convenient for the staff to operate controller 2.

Specifically, the right side of the protective shell 1201 is fixedly connected with an inclined block 29, and the surface of the inclined block 29 is movably connected with the surface of the extrusion block 18.

In this embodiment, an inclined surface is disposed on one side of the extrusion block 18 close to the inclined block 29, and the inclined surface is adapted to the inclined surface of the inclined block 29, so that the extrusion block 18 can conveniently extrude the inclined block 29 when pushing the first square shell 13 and the second square shell 14.

Specifically, the inside of the groove 19 is fixedly connected with a limiting rod 30, and the first rack 21 and the third spring 22 are movably sleeved on the surface of the limiting rod 30.

In this embodiment, the first rack 21 is movably sleeved on the surface of the limiting rod 30, and can limit and guide the first rack 21 when the block 20 is pressed.

The utility model discloses a theory of operation and use flow: when the device is used, the guide rod 4 is firstly inserted into the mounting plate 6, the mounting plate 6 is pushed leftwards, after the fixture block 705 enters the square groove 8 and contacts with the L-shaped rod 10, the fixture block 705 drives the movable plate 704 to move rightwards under the action of the mounting plate 6, the movable plate 704 enables the second T-shaped rod 702 to move, the fourth spring 703 is stretched, after the movable plate 704 contacts with the rubber ring 25, the fixture block 705 stops moving, at the moment, under the action of the mounting plate 6, the fixture block 705 presses the L-shaped rod 10, as the contact surfaces of the fixture block 705 and the L-shaped rod 10 are inclined surfaces, in the pressing process, the L-shaped rod 10 moves downwards, the first spring 11 compresses, after the inclined surface of the fixture block 705 is separated from the inclined surface of the L-shaped rod 10, under the resetting action of the first spring 11, the L-shaped rod 10 moves upwards to clamp the fixture block, the mounting plate 6 is stopped being pushed, the controller 2 is released, under the resetting action of the fourth spring 703, the second T-bar 702 drives the movable plate 704 and the latch 705 to move rightwards, the movable plate 704 drives the mounting plate 6 to move rightwards, after the fourth spring 703 is restored, the mounting plate 6 stops moving, the position of the mounting ring 1202 corresponds to the position of the guide rod 4 one by one, the protective shell 1201 is pushed leftwards, after the controller 2 contacts the protective cover 1207, the protective shell 1201 stops being pushed, the tooth space 5 contacts the locking block 1204, the protective shell 1201 can be fixed, the first square shell 13 and the second square shell 14 are pushed simultaneously, the two first T-bars 15 move in opposite directions, the second spring 17 is compressed, the pressing block 18 presses the inclined block 29, the inclined block 29 presses the mounting plate 6, the mounting plate 6 moves leftwards, the fourth spring is compressed 703, when the first square shell 13 and the second square shell 14 move in opposite directions, the first rack 21 is inserted into the rectangular groove 23, under the action of the third spring 22, the first rack 21 is always meshed with the second rack 24, with first square shell 13 and second square shell 14 pinning, the installation is accomplished, when the pivoted lever 26 that protective cover 1207 surface activity was inlayed rotated pivoted lever 26 to the direction of perpendicular to screen, quarter butt 28 is also perpendicular to screen, it can open protective cover 1207 to pull pivoted lever 26 to the upper right side, the staff's operation of being convenient for, press square 20, square 20 drives first rack 21 and extrudees third spring 22, first rack 21 breaks away from with second rack 24, under the effect of second spring 17, first square shell 13 breaks away from with second square shell 14 is automatic, can dismantle controller 2.

In conclusion, this combustible gas alarm controller 2 through setting up fixture block 705, mounting panel 6, protecting crust 1201 and collar 1202, has solved and has dismantled the trouble during maintenance, and violent dismantlement may cause the injury to the staff, and current combustible gas alarm controller 2 lacks protection device moreover, causes the screen or the button on the controller 2 probably impaired problem.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a combustible gas alarm control ware, includes fixed plate (1) and controller (2), its characterized in that: the left side of the fixing plate (1) is fixedly connected with the surface of a wall body (3), the right side of the fixing plate (1) is fixedly connected with a guide rod (4), one side of the guide rod (4) is provided with a tooth groove (5), the left side of the controller (2) is fixedly connected with a mounting plate (6), a preassembling mechanism (7) is arranged between the mounting plate (6) and the fixing plate (1), one end of the guide rod (4) movably penetrates through the mounting plate (6) and extends to the right side of the mounting plate (6), the left side of the mounting plate (6) is respectively provided with a square groove (8) and an L-shaped groove (9), the interiors of the L-shaped groove (9) and the square groove (8) are communicated, the inner wall of the L-shaped groove (9) is movably connected with the surface of the L-shaped rod (10), the bottom of the L-shaped rod (10) is fixedly connected with a first spring (11), one end of the first spring (11) is fixedly connected with the inner wall of the L-shaped groove (9), the right side of the controller (2) is provided with a protection mechanism (12), a first square shell (13) and a second square shell (14) are movably arranged above and below the fixed plate (1) respectively, opposite surfaces of the first square shell (13) and the second square shell (14) are fixedly connected with a first T-shaped rod (15), a sliding groove (16) is formed in the position, corresponding to the first T-shaped rod (15), of the fixed plate (1), the surface of the first T-shaped rod (15) is movably connected with the inner wall of the sliding groove (16), one end of the first T-shaped rod (15) is fixedly connected with a second spring (17), one end of the second spring (17) is fixedly connected with the inner wall of the sliding groove (16), the right sides of the first square shell (13) and the second square shell (14) are fixedly connected with an extrusion block (18), and a groove (19) is formed in the right side of the first square shell (13), the utility model discloses a square, including recess (19), the inner wall of recess (19) and the surperficial swing joint of square (20), the first rack of left side fixedly connected with (21) of square (20), the left side fixedly connected with third spring (22) of first rack (21), the one end of third spring (22) and the inner wall fixed connection of recess (19), rectangular channel (23) have been seted up to the position department that second square shell (14) correspond first rack (21), inside fixedly connected with second rack (24) of rectangular channel (23), the one end of first rack (21) extend to the inside of rectangular channel (23) and mesh with second rack (24).

2. A combustible gas alarm controller according to claim 1 wherein: the preassembly mechanism (7) comprises a sleeve (701), the sleeve (701) is fixedly connected with the right side of the fixing plate (1), the inner wall of the sleeve (701) is movably connected with the surface of a second T-shaped rod (702), a fourth spring (703) is fixedly connected with the surface of the second T-shaped rod (702), one end of the fourth spring (703) is fixedly connected with the right side of the inner wall of the sleeve (701), one end of the second T-shaped rod (702) movably penetrates through the sleeve (701) and is fixedly connected with the surface of the movable plate (704), the surface of the movable plate (704) is movably connected with the left side of the mounting plate (6), a clamping block (705) is fixedly connected with the right side of the movable plate (704), and the clamping block (705) extends into the square groove (8) and is movably connected with the surface of the L-shaped rod (10).

3. A combustible gas alarm controller according to claim 2 wherein: the surface of the second T-shaped rod (702) is movably sleeved with a rubber ring (25), and the left side of the rubber ring (25) is fixedly connected with the surface of the sleeve (701).

4. A combustible gas alarm controller according to claim 1 wherein: the protection mechanism (12) comprises a protection shell (1201), the inner wall of the protection shell (1201) is movably connected with the surface of a controller (2), the right side of the protection shell (1201) is fixedly connected with a mounting ring (1202), a guide rod (4) movably penetrates through the inner walls of the protection shell (1201) and the mounting ring (1202) and extends to the right side of the mounting ring (1202), a locking groove (1203) is formed in the inner wall of the mounting ring (1202), a locking block (1204) is movably connected inside the locking groove (1203), the surface of the locking block (1204) is movably connected with the inner wall of a tooth groove (5), a pull rod (1205) is movably embedded in one side of the mounting ring (1202), one end of the pull rod (1205) is fixedly connected with the surface of the locking block (1204), one end of the locking block (1204) is fixedly connected with a fifth spring (1206), and one end of the fifth spring (1206) is fixedly connected with the inner wall of the locking groove (1203), the right side of the protective shell (1201) is movably connected with a protective cover (1207) through a long shaft.

5. A combustible gas alarm controller according to claim 4, characterised in that: the right side activity of protective cover (1207) is inlayed and is had bull stick (26), dysmorphism groove (27) have been seted up to protective housing (1201) corresponding position department of bull stick (26), the inside swing joint in dysmorphism groove (27) has quarter butt (28), the one end of bull stick (26) extend to the inside in dysmorphism groove (27) and with the fixed surface of quarter butt (28) be connected.

6. A combustible gas alarm controller according to claim 4, characterised in that: an inclined block (29) is fixedly connected to the right side of the protective shell (1201), and the surface of the inclined block (29) is movably connected with the surface of the extrusion block (18).

7. A combustible gas alarm controller according to claim 1 wherein: the inside fixedly connected with gag lever post (30) of recess (19), first rack (21) and third spring (22) all activity cup joint on the surface of gag lever post (30).