CN215987544U

CN215987544U - Combustible gas detection alarm system

Info

Publication number: CN215987544U
Application number: CN202122332327.7U
Authority: CN
Inventors: 张萍萍
Original assignee: Wuhan Xinfengteng Engineering Technology Co ltd
Current assignee: Wuhan Xinfengteng Engineering Technology Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-08
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a combustible gas detection alarm system, which belongs to the technical field of combustible gas detection and comprises a mounting plate and a detector body, wherein a fixing mechanism is arranged between the mounting plate and the detector body, an air inlet pipe is fixedly arranged at the bottom of the detector body, an air outlet pipe is fixedly arranged on the side wall of the detector body, a motor frame is fixedly arranged in the air inlet pipe, a motor is fixedly arranged on the motor frame, an output shaft of the motor penetrates through the motor frame and is fixedly provided with a fan, and a dustproof mechanism is arranged at the bottom of the air inlet pipe and is connected with an output shaft of the motor. The mounting panel passes through bolt fixed mounting on the wall of detection scene, and the detector body passes through fixed establishment and mounting panel quick fixation, and the dismouting is convenient, and easy to assemble and dimension are protected, and the motor drives the fan and rotates to detect gas from the intake pipe suction, dustproof mechanism filters the dust, and simultaneously, dustproof mechanism and motor linkage have from the cleaning effect, thereby avoid blockking up, ensure gaseous detection precision.

Description

Combustible gas detection alarm system

Technical Field

The utility model relates to the technical field of combustible gas detection, in particular to a combustible gas detection alarm system.

Background

The combustible gas detection alarm is a detection instrument responding to the concentration of single or multiple combustible gases, and converts the concentration of the combustible gases into an electric signal to achieve the purpose of detection, and comprises a catalytic type combustible gas detector and an infrared optical type combustible gas detector, wherein the catalytic type combustible gas detector utilizes the resistance change of a refractory metal platinum wire after being heated to detect the concentration of the combustible gases, when the combustible gases enter the detector, an oxidation reaction (flameless combustion) is caused on the surface of the platinum wire, the temperature of the platinum wire is increased by the heat generated by the oxidation reaction, the resistivity of the platinum wire is changed, a dust screen is installed at the position where the gases enter the detector in the prior combustible gas detection alarm device, so that air dust is prevented from entering and adhering to the surface of the platinum wire, but after the combustible gas detection alarm device is used for a period of time, the dust screen is blocked, the entering gases are reduced, and the detected concentration of the combustible gases is far lower than the actual concentration, there is the potential safety hazard, and present detector dismouting is inconvenient, is unfavorable for the dimension to protect.

SUMMERY OF THE UTILITY MODEL

In view of the technical defects, the utility model aims to provide a combustible gas detection alarm system.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a combustible gas detection alarm system which comprises a mounting plate and a detector body, wherein a fixing mechanism is arranged between the mounting plate and the detector body, an air inlet pipe is fixedly arranged at the bottom of the detector body, an air outlet pipe is fixedly arranged on the side wall of the detector body, a motor frame is fixedly arranged in the air inlet pipe, a motor is fixedly arranged on the motor frame, an output shaft of the motor penetrates through the motor frame and is fixedly provided with a fan, and a dustproof mechanism is arranged at the bottom of the air inlet pipe and is connected with the output shaft of the motor.

Preferably, the detector body is fixedly provided with a display and a key, and the detector body is provided with a buzzer alarm.

Preferably, fixed establishment includes the couple, a plurality of couples of one side outer wall fixed mounting that the detector body is close to the mounting panel, open one side that the mounting panel is close to the detector body has a plurality of insertion grooves, open the inboard bottom of insertion groove has the draw-in groove, couple joint draw-in groove, the top of mounting panel cup joints clamp bolt through helicitic texture, clamp bolt's bottom stretches into in the insertion groove.

Preferably, the hook is of an L-shaped structure, the insertion groove and the clamping groove are of an L-shaped structure, the height of the insertion groove is equal to that of the hook, and the width of the clamping groove is equal to the thickness of the vertical end of the hook.

Preferably, the length of the compression bolt is greater than the distance from the top surface of the mounting plate to the bottom surface of the insertion groove, and the bottom of the compression bolt is of a hemispherical structure.

Preferably, dustproof mechanism includes the collar, the collar cup joints the bottom of intake pipe through helicitic texture, install the dust screen in the collar, the inner chamber bottom fixed mounting mount of intake pipe, slip joint push rod on the mount, the top fixed mounting push pedal of push rod, cup joint the spring on the push rod between push pedal and the mount, the output shaft fixed mounting rotor plate of motor, the bottom both ends fixed mounting lug of rotor plate, the joint brush board is rotated to the bottom of push rod, the brush hair laminating dust screen of brush board.

Preferably, the spring is in compression state all the time, the top of push rod is the cuboid structure, and the bottom is the cylinder structure, and cuboid structure slip joint mount, cylinder structure rotation joint brush board, the lug is the hemisphere structure.

Preferably, the guide rods are fixedly installed on the outer walls of the two sides of the brush plate, the guide grooves are formed in the inner walls of the two sides of the air inlet pipe and are of arc-shaped structures, and the guide rods are connected with the guide grooves in a sliding and clamping mode.

The utility model has the beneficial effects that:

1. the mounting plate is fixedly mounted on a wall surface of a detection site through bolts, the compression bolt is rotated to be separated from the insertion groove, the hook can stretch into the insertion groove, then the vertical end of the hook is clamped into the clamping groove by the weight of the detector body, then the compression bolt is screwed, the bottom of the compression bolt is tightly pressed on the hook at the moment, the hook cannot move upwards, so that the hook is kept clamped with the clamping groove, the mounting is stable, the detection device body can be taken down only by unscrewing the compression bolt during dismounting and then lifting the detector body to separate the hook from the clamping groove, and the maintenance is convenient;

2. the motor drives the rotor plate and rotates in succession, the rotor plate rotates and makes the lug contact the push pedal for a moment, separate for a moment, the push pedal can be pushed down when lug contact push pedal, thereby make the push rod push down the brush board, when lug and push pedal separate, the spring promotes the push pedal, then the push rod drives the brush board and shifts up, thereby realize the upper and lower reciprocating motion of brush board, when the brush board removes, the guide arm slides along the guide slot, thereby make the brush board take place to rotate, then the brush hair on the brush board can pass the mesh of dust screen when moving down, promote the deposition, then rotate the brush again and wipe out the dust screen, realize the self-cleaning of dust screen, avoid the dust screen to block up and influence gaseous detection precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a combustible gas detection alarm system according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of the intake pipe according to the present invention.

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

Fig. 4 is a schematic structural diagram of the fixing mechanism of the present invention.

Description of reference numerals: 1. mounting a plate; 2. a detector body; 3. an air inlet pipe; 4. a dust-proof mechanism; 41. a mounting ring; 42. a dust screen; 43. a fixed mount; 44. a push rod; 45. pushing the plate; 46. a rotating plate; 47. a bump; 48. a spring; 49. brushing the board; 5. an air outlet pipe; 6. a fixing mechanism; 61. hooking; 62. inserting the groove; 63. a card slot; 64. a hold-down bolt; 7. a display; 8. pressing a key; 9. a motor frame; 10. a motor; 11. a fan; 12. a guide groove; 13. a guide rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-4, the utility model provides a combustible gas detection alarm system, which comprises a mounting plate 1 and a detector body 2, wherein a fixing mechanism 6 is installed between the mounting plate 1 and the detector body 2, an air inlet pipe 3 is fixedly installed at the bottom of the detector body 2, an air outlet pipe 5 is fixedly installed on the side wall of the detector body 2, a motor frame 9 is fixedly installed in the air inlet pipe 3, a motor 10 is fixedly installed on the motor frame 9, an output shaft of the motor 10 penetrates through the motor frame 9 and is fixedly provided with a fan 11, a dustproof mechanism 4 is installed at the bottom of the air inlet pipe 3, and the dustproof mechanism 4 is connected with the output shaft of the motor 10. Mounting panel 1 passes through bolt fixed mounting on the wall of detection scene, and detector body 2 passes through fixed establishment 6 and mounting panel 1 quick fixation, and the dismouting is convenient, and is easy to assemble and dimension guarantor, and motor 10 drives fan 11 and rotates to detect gas from 3 aspirations in intake pipe, dustproof mechanism 4 filters the dust, and simultaneously, dustproof mechanism 4 and motor 10 linkage have from the cleaning effect, thereby avoid blockking up, ensure gaseous detection precision.

Further, a display 7 and a key 8 are fixedly installed on the detector body 2, and a buzzer alarm is installed on the detector body 2.

Further, the fixing mechanism 6 includes a hook 61, a plurality of hooks 61 are fixedly installed on the outer wall of one side of the detector body 2 close to the mounting plate 1, a plurality of insertion grooves 62 are formed on one side of the mounting plate 1 close to the detector body 2, a clamping groove 63 is formed at the bottom of the inner side of the insertion groove 62, the hook 61 is clamped with the clamping groove 63, a compression bolt 64 is sleeved on the top of the mounting plate 1 through a threaded structure, the bottom of the compression bolt 64 extends into the insertion groove 62, the hook 61 is of an L-shaped structure, the insertion groove 62 and the clamping groove 63 are of an L-shaped structure, the height of the insertion groove 62 is equal to the height of the hook 61, the width of the clamping groove 63 is equal to the thickness of the vertical end of the hook 61, the length of the compression bolt 64 is greater than the distance from the top surface of the mounting plate 1 to the bottom surface of the insertion groove 62, the bottom of the compression bolt 64 is of a hemispherical structure, when the detector is installed, the compression bolt 64 is rotated to be separated from the insertion groove 62, the hook 61 can extend into the insertion groove 62, then 2 weight on the detector body make the vertical end card of couple 61 go into the draw-in groove 63 in, then screw up clamp bolt 64, clamp bolt 64 bottom compresses tightly on couple 61 this moment, then couple 61 can't shift up to make couple 61 keep joint draw-in groove 63, the installation is firm, during the dismantlement, only need unscrew clamp bolt 64, then lift detector body 2 on, make couple 61 break away from draw-in groove 63, can take off detector body 2, be convenient for maintain.

The dustproof mechanism 4 comprises a mounting ring 41, the mounting ring 41 is sleeved with the bottom of the air inlet pipe 3 through a threaded structure, a dustproof net 42 is installed in the mounting ring 41, a fixed frame 43 is fixedly installed at the bottom of an inner cavity of the air inlet pipe 3, a push rod 44 is slidably clamped on the fixed frame 43, a push plate 45 is fixedly installed at the top of the push rod 44, a spring 48 is sleeved on the push rod 44 between the push plate 45 and the fixed frame 43, a rotating plate 46 is fixedly installed on an output shaft of the motor 10, lugs 47 are fixedly installed at two ends of the bottom of the rotating plate 46, the bottom of the push rod 44 is rotatably clamped with a brush plate 49, bristles of the brush plate 49 are attached to the dustproof net 42, the spring 48 is always in a compressed state, the top of the push rod 44 is of a cuboid structure, the bottom of the push rod is of a cylindrical structure, the fixed frame 43 is slidably clamped with the cylindrical structure, the brush plate 49, the lugs 47 are of a hemispherical structure, guide rods 13 are fixedly installed on the outer walls of two sides of the brush plate 49, guide grooves 12 are formed on the inner walls of two sides of the air inlet pipe 3, the guide groove 12 is of an arc structure, the guide rod 13 is slidably clamped with the guide groove 12, the motor 10 drives the rotating plate 46 to continuously rotate, the rotating plate 46 rotates to enable the bump 47 to contact with the push plate 45 for a moment and to be separated for a moment, the push plate 45 is pressed down when the bump 47 contacts with the push plate 45, so that the brush plate 49 is pressed down by the push rod 44, when the bump 47 is separated from the push plate 45, the spring 48 pushes the push plate 45, the push rod 44 drives the brush plate 49 to move upwards, so that the brush plate 49 can reciprocate upwards and downwards, when the brush plate 49 moves, the guide rod 13 slides along the guide groove 12, so that the brush plate 49 rotates, bristles on the brush plate 49 can penetrate through meshes of the dust screen 42 when moving downwards, accumulated dust is pushed, then the dust screen 42 is brushed by rotating, and self-cleaning of the dust screen 42 is achieved.

When the gas detection device is used, the mounting plate 1 is fixedly mounted on a wall surface of a detection site through bolts, the compression bolt 64 is rotated to enable the compression bolt 64 to be separated from the insertion groove 62, the hook 61 can extend into the insertion groove 62, then the vertical end of the hook 61 is clamped into the clamping groove 63 due to the weight of the detector body 2, then the compression bolt 64 is screwed, the bottom of the compression bolt 64 is tightly pressed on the hook 61 at the moment, the hook 61 cannot move upwards, so that the hook 61 is kept clamped in the clamping groove 63, the mounting is stable, only the compression bolt 64 needs to be unscrewed during dismounting, then the detector body 2 is lifted upwards to enable the hook 61 to be separated from the clamping groove 63, the detector body 2 can be taken down, the maintenance is convenient, during detection, the motor 10 drives the fan 11 to rotate, so that gas is sucked into the detector body 2 along the gas inlet pipe 3, the detection is convenient, the gas is filtered when passing through the dust screen 42, the motor 10 drives the rotating plate 46 to continuously rotate, the rotating plate 46 rotates to enable the bump 47 to contact the push plate 45 for a while and separate for a while, when the bump 47 contacts the push plate 45, the push plate 45 is pressed down, so that the brush plate 49 is pressed down by the push rod 44, when the bump 47 is separated from the push plate 45, the spring 48 pushes the push plate 45, the push rod 44 drives the brush plate 49 to move upwards, so that the brush plate 49 can reciprocate up and down, when the brush plate 49 moves, the guide rod 13 slides along the guide groove 12, so that the brush plate 49 rotates, bristles on the brush plate 49 can penetrate through meshes of the dust screen 42 when moving downwards, accumulated dust is pushed, then the dust screen 42 is brushed rotationally, self-cleaning of the dust screen 42 is achieved, and the dust screen 42 is prevented from being blocked to influence gas detection accuracy.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a combustible gas detects alarm system, includes mounting panel (1) and detector body (2), its characterized in that: installation fixed establishment (6) between mounting panel (1) and detector body (2), bottom fixed mounting intake pipe (3) of detector body (2), the lateral wall fixed mounting of detector body (2) goes out tuber pipe (5), fixed mounting motor frame (9) in intake pipe (3), fixed mounting motor (10) are gone up in motor frame (9), the output shaft of motor (10) runs through motor frame (9) and fixed mounting fan (11), dustproof mechanism (4) of bottom installation of intake pipe (3), the output shaft of motor (10) is connected in dustproof mechanism (4).

2. A combustible gas detection alarm system according to claim 1 wherein: the detector is characterized in that a display (7) and a key (8) are fixedly installed on the detector body (2), and a buzzer alarm is installed on the detector body (2).

3. A combustible gas detection alarm system according to claim 1 wherein: fixed establishment (6) are including couple (61), a plurality of couples (61) of one side outer wall fixed mounting that detector body (2) are close to mounting panel (1), one side that mounting panel (1) are close to detector body (2) is opened has a plurality of insertion grooves (62), open the inboard bottom of insertion groove (62) has draw-in groove (63), couple (61) joint draw-in groove (63), the top of mounting panel (1) cup joints through helicitic texture and cup joints clamp bolt (64), the bottom of clamp bolt (64) stretches into in insertion groove (62).

4. A combustible gas detection alarm system according to claim 3 wherein: couple (61) are L type structure, insertion slot (62) and draw-in groove (63) are L type structure, and the height of insertion slot (62) equals the height of couple (61), the width of draw-in groove (63) equals the thickness of the vertical end of couple (61).

5. A combustible gas detection alarm system according to claim 3 wherein: the length of the compression bolt (64) is greater than the distance from the top surface of the mounting plate (1) to the bottom surface of the insertion groove (62), and the bottom of the compression bolt (64) is of a hemispherical structure.

6. A combustible gas detection alarm system according to claim 1 wherein: dustproof construction (4) are including collar (41), collar (41) cup joint the bottom of intake pipe (3) through helicitic texture, install dust screen (42) in collar (41), inner chamber bottom fixed mounting mount (43) of intake pipe (3), slide clamping push rod (44) on mount (43), top fixed mounting push pedal (45) of push rod (44), cup joint spring (48) on push rod (44) between push pedal (45) and mount (43), output shaft fixed mounting rotor plate (46) of motor (10), bottom both ends fixed mounting lug (47) of rotor plate (46), joint brush board (49) is rotated to the bottom of push rod (44), brush the brush hair laminating dust screen (42) of board (49).

7. A combustible gas detection alarm system according to claim 6 wherein: spring (48) are in compression state all the time, the top of push rod (44) is the cuboid structure, and the bottom is the cylinder structure, and cuboid structure slip joint mount (43), and the cylinder structure rotates joint brush board (49), lug (47) are the hemisphere structure.

8. A combustible gas detection alarm system according to claim 6 wherein: the equal fixed mounting guide arm (13) of both sides outer wall of brush board (49), guide slot (12) have all been opened to the both sides inner wall of intake pipe (3), guide slot (12) are the arc structure, guide arm (13) slip joint guide slot (12).