CN215894546U - Gas concentration detection alarm - Google Patents
Gas concentration detection alarm Download PDFInfo
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- CN215894546U CN215894546U CN202121910446.XU CN202121910446U CN215894546U CN 215894546 U CN215894546 U CN 215894546U CN 202121910446 U CN202121910446 U CN 202121910446U CN 215894546 U CN215894546 U CN 215894546U
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Abstract
The utility model discloses a gas concentration detection alarm, which comprises a shell, wherein the bottom of the shell is respectively and fixedly connected with a detection alarm mechanism and a filter box through a fixed rod, the side wall of the shell is provided with a round hole, a fan is arranged in the round hole, the inner wall of the shell, which is close to the round hole, is communicated with the inner wall of the detection alarm mechanism through a fan cover, the inner wall of the detection alarm mechanism, which is far away from the fan cover, is communicated with the inner wall of one side of the filter box through a connecting pipe, the top of the shell is connected with an air suction pipe in a sliding manner, and the inner wall of the other side of the filter box is fixedly connected with the bottom of the air suction pipe through an air inlet pipe. According to the gas suction pipe, the slide block slides on the side wall of the lead screw through the rotation of the lead screw, and then the slide block drives the gas suction pipe to slide on the upper end of the shell, so that the height of the gas suction pipe is adjusted, the gas suction pipe can absorb gas with different heights, and then the detection alarm mechanism can detect the concentration in the gas with different heights, so that the accuracy of a gas detection result is improved.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a gas concentration detection alarm.
Background
The gas concentration alarm is an instrument for detecting gas concentration leakage and alarming, when combustible or toxic gas in an industrial environment leaks and when the gas concentration alarm detects that the gas concentration reaches an alarm point set by the explosion or poison alarm, the gas concentration alarm can send out an alarm signal so as to remind work of taking safety measures.
At present in the gas concentration alarm is mainly with external gas suction gas concentration alarm, but the highly fixed of its breathing pipe is unchangeable, and then can not survey the air of co-altitude for it is not accurate enough to the detection result of gas, and when gas gets into in the gas concentration alarm, may contain the dust in the gas this moment, and then in these dusts can get into the gas concentration alarm, influence the detection result of gas concentration alarm and influence the life of gas concentration alarm.
Based on this, the utility model provides a gas concentration detection alarm.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a gas concentration detection alarm.
In order to achieve the purpose, the utility model adopts the following technical scheme:
gas concentration detection alarm, which comprises a housin, the casing bottom is through dead lever fixedly connected with detection alarm mechanism and rose box respectively, the round hole has been seted up to the casing lateral wall, install the fan in the round hole, the inner wall that the casing is close to the round hole passes through air-collecting cover and detection alarm mechanism inner wall intercommunication, the inner wall that detection alarm mechanism kept away from the air-collecting cover passes through connecting pipe and rose box one side inner wall intercommunication, casing top sliding connection has the breathing pipe, rose box opposite side inner wall passes through intake pipe and breathing pipe bottom fixed connection, install on the casing and carry out the adjustment mechanism who adjusts to the breathing pipe position, install in the rose box and carry out filterable filter mechanism to the dust in the gas.
Preferably, the adjusting mechanism comprises a groove formed in the inner wall of the shell, the inner wall of the groove is rotatably connected with a lead screw, the side wall of the lead screw is in threaded connection with a sliding block, the side wall of the air suction pipe is fixedly connected with the side wall of the sliding block, the side wall of the sliding block is in sliding connection with the inner wall of the groove, and a driving mechanism for driving the lead screw to rotate is mounted on the shell.
Preferably, the driving mechanism comprises a cross rod rotatably connected to the side wall of the shell, one end of the cross rod penetrates through the inner wall of the groove and is fixedly connected with a first bevel gear, and the side wall of the lead screw is fixedly connected with a second bevel gear meshed with the first bevel gear.
Preferably, one end of the cross rod, which is far away from the first bevel gear, is fixedly connected with a hand wheel, and the side wall of the hand wheel is glued with a rubber anti-slip sleeve.
Preferably, filtering mechanism is including seting up the ring channel at the rose box inner wall, ring channel one side inner wall and rose box lateral wall intercommunication, ring channel inner wall sliding connection has the annular frame, annular frame inner wall fixedly connected with filter screen.
Preferably, the side wall of the annular frame, which is far away from the annular groove, is fixedly connected with a pull rod, and the filter screen is made of stainless steel materials.
The utility model has the following beneficial effects:
1. through setting up adjustment mechanism and actuating mechanism, the hand wheel rotates and makes the horizontal pole drive first bevel gear and rotate, and then first bevel gear drives the lead screw through second bevel gear and rotates, and then drives the slider and slide at the lead screw lateral wall, and then the slider drives the breathing pipe and slides in the casing upper end, and then adjusts the height of breathing pipe, make the breathing pipe can absorb the gas of co-altitude not, and then survey alarm mechanism can survey the gas internal concentration of co-altitude not, and then increase the accuracy to the gas detection result.
2. Through setting up rose box and filtering mechanism, the outside gas passes through breathing pipe and intake pipe entering rose box back, and the filter screen can filter the dust in the gas this moment, avoids the dust in the gas to get into and surveys among the alarm mechanism to influence the detection result of surveying alarm mechanism and influence and survey alarm mechanism's life.
Drawings
Fig. 1 is a schematic structural view of a gas concentration detection alarm provided by the present invention;
fig. 2 is a left side view schematic diagram of the gas concentration detection alarm provided by the utility model;
FIG. 3 is a schematic structural diagram of an adjusting mechanism and a driving mechanism in the gas concentration detection alarm provided by the utility model;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
fig. 5 is a schematic vertical sectional structure diagram of a filter box in the gas concentration detection alarm provided by the utility model.
In the figure: the device comprises a shell 1, a detection alarm mechanism 2, a filter box 3, a circular hole 4, a fan 5, a fan collecting cover 6, a connecting pipe 7, an air suction pipe 8, an air inlet pipe 9, a groove 10, a lead screw 11, a sliding block 12, a cross rod 13, a first bevel gear 14, a second bevel gear 15, a hand wheel 16, an annular groove 17, an annular frame 18, a filter screen 19 and a pull rod 20.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, the gas concentration detection alarm comprises a housing 1, wherein the bottom of the housing 1 is fixedly connected with a detection alarm mechanism 2 and a filter box 3 through fixing rods respectively, it is to be noted that the detection alarm mechanism 2 detects the gas concentration and mainly detects through an electrochemical gas sensor, then carries out induction analysis on the gas concentration according to the electrochemical gas sensor, then outputs the analysis result, and outputs various early warning and alarm signals through an electronic circuit according to the concentration change of the gas to be detected, which is the prior art.
Round hole 4 has been seted up to 1 lateral wall of casing, install fan 5 in the round hole 4, casing 1 is close to the inner wall of round hole 4 and passes through wind-collecting cover 6 and the 2 inner walls intercommunication of detection alarm mechanism, the inner wall that detection alarm mechanism 2 kept away from wind-collecting cover 6 passes through connecting pipe 7 and 3 one side inner walls of rose box intercommunication, 1 top sliding connection of casing has breathing pipe 8, 3 opposite side inner walls of rose box pass through intake pipe 9 and 8 bottom fixed connection of breathing pipe, install the adjustment mechanism who adjusts to 8 positions of breathing pipe on casing 1, install in the rose box 3 and carry out filterable filter mechanism to the dust in the gas.
The adjusting mechanism comprises a groove 10 formed in the inner wall of the shell 1, a lead screw 11 is rotatably connected to the inner wall of the groove 10, a sliding block 12 is in threaded connection with the side wall of the lead screw 11, the side wall of the air suction pipe 8 is fixedly connected with the side wall of the sliding block 12, the side wall of the sliding block 12 is in sliding connection with the inner wall of the groove 10, and a driving mechanism for driving the lead screw 11 to rotate is mounted on the shell 1.
Further, the lead screw 11 rotates to make the slider 12 drive the air suction pipe 8 to slide at the upper end of the shell 1, and then the height of the air suction pipe 8 is adjusted, so that the air suction pipe 8 can absorb the gas with different heights, and then the detection alarm mechanism 2 can detect the gas with different heights, and then the accuracy of the gas detection result is improved.
The driving mechanism comprises a cross rod 13 rotatably connected to the side wall of the shell 1, one end of the cross rod 13 penetrates through the inner wall of the groove 10 and is fixedly connected with a first bevel gear 14, and the side wall of the lead screw 11 is fixedly connected with a second bevel gear 15 meshed with the first bevel gear 14.
One end of the cross rod 13 far away from the first bevel gear 14 is fixedly connected with a hand wheel 16, and the side wall of the hand wheel 16 is glued with a rubber anti-slip sleeve.
The filtering mechanism comprises an annular groove 17 formed in the inner wall of the filtering box 3, the inner wall of one side of the annular groove 17 is communicated with the side wall of the filtering box 3, an annular frame 18 is connected to the inner wall of the annular groove 17 in a sliding mode, and a filter screen 19 is fixedly connected to the inner wall of the annular frame 18.
The side wall of the annular frame 18 far away from the annular groove 17 is fixedly connected with a pull rod 20, and the filter screen 19 is made of stainless steel materials.
Further, when filter box 3 live time is longer makes 19 surfaces of filter screen gather more dust, outside pulling pull rod 20 this moment for annular frame 18 is pulled out from ring channel 17, and then can clear up the dust on 19 surfaces of filter screen, and annular frame 18 lateral wall closely laminates with ring channel 17 inner wall in addition, avoids the interior gas outflow of filter box 3.
In the utility model, when the gas concentration is detected, the fan 5 is started at the moment, so that negative pressure is generated in the air collecting cover 6, further air is sucked in the air collecting cover 6 through the air suction pipe 8, the air inlet pipe 9 and the connecting pipe 7, further external gas enters the filter box 3 through the air suction pipe 8 and the air inlet pipe 9, at the moment, the filter screen 19 fixedly connected to the inner wall of the annular frame 18 can filter dust in the gas, then the filtered gas enters the detection alarm mechanism 2 through the connecting pipe 7, further the detection alarm mechanism 2 detects the gas concentration, and whether to alarm or not is determined according to the gas detection concentration;
when detecting the gas concentration, the hand wheel 16 is rotated at the moment, so that the cross rod 13 drives the first bevel gear 14 to rotate, the first bevel gear 14 drives the second bevel gear 15 meshed with the first bevel gear to rotate, the screw rod 11 is driven to rotate, the sliding block 12 slides on the side wall of the screw rod 11, the sliding block 12 drives the air suction pipe 8 to slide on the upper end of the shell 1, the height of the air suction pipe 8 is adjusted, the air suction pipe 8 can absorb gases with different heights, and the detection alarm mechanism 2 can detect the gas internal concentration with different heights.
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 equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The gas concentration detection alarm comprises a shell (1) and is characterized in that the bottom of the shell (1) is fixedly connected with a detection alarm mechanism (2) and a filter box (3) through fixing rods respectively, a round hole (4) is formed in the side wall of the shell (1), a fan (5) is installed in the round hole (4), the inner wall, close to the round hole (4), of the shell (1) is communicated with the inner wall of the detection alarm mechanism (2) through a wind-collecting cover (6), the inner wall, far away from the wind-collecting cover (6), of the detection alarm mechanism (2) is communicated with the inner wall of one side of the filter box (3) through a connecting pipe (7), the top of the shell (1) is slidably connected with an air suction pipe (8), the inner wall of the other side of the filter box (3) is fixedly connected with the bottom of the air suction pipe (8) through an air inlet pipe (9), and an adjusting mechanism for adjusting the position of the air suction pipe (8) is installed on the shell (1), and a filtering mechanism for filtering dust in the gas is arranged in the filtering box (3).
2. The gas concentration detection alarm according to claim 1, wherein the adjusting mechanism comprises a groove (10) formed in the inner wall of the housing (1), a lead screw (11) is rotatably connected to the inner wall of the groove (10), a sliding block (12) is in threaded connection with the side wall of the lead screw (11), the side wall of the air suction pipe (8) is fixedly connected with the side wall of the sliding block (12), the side wall of the sliding block (12) is in sliding connection with the inner wall of the groove (10), and a driving mechanism for driving the lead screw (11) to rotate is mounted on the housing (1).
3. The gas concentration detection alarm according to claim 2, wherein the driving mechanism comprises a cross bar (13) rotatably connected to the side wall of the housing (1), one end of the cross bar (13) penetrates through the inner wall of the groove (10) and is fixedly connected with a first bevel gear (14), and the side wall of the lead screw (11) is fixedly connected with a second bevel gear (15) meshed with the first bevel gear (14).
4. The gas concentration detection alarm according to claim 3, wherein a hand wheel (16) is fixedly connected to one end of the cross bar (13) far away from the first bevel gear (14), and a rubber anti-slip sleeve is glued to the side wall of the hand wheel (16).
5. The gas concentration detection alarm according to claim 1, wherein the filtering mechanism comprises an annular groove (17) formed in the inner wall of the filtering box (3), the inner wall of one side of the annular groove (17) is communicated with the side wall of the filtering box (3), an annular frame (18) is connected to the inner wall of the annular groove (17) in a sliding manner, and a filter screen (19) is fixedly connected to the inner wall of the annular frame (18).
6. The gas concentration detection alarm according to claim 5, wherein the side wall of the annular frame (18) far away from the annular groove (17) is fixedly connected with a pull rod (20), and the filter screen (19) is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910446.XU CN215894546U (en) | 2021-08-13 | 2021-08-13 | Gas concentration detection alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910446.XU CN215894546U (en) | 2021-08-13 | 2021-08-13 | Gas concentration detection alarm |
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| Publication Number | Publication Date |
|---|---|
| CN215894546U true CN215894546U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121910446.XU Active CN215894546U (en) | 2021-08-13 | 2021-08-13 | Gas concentration detection alarm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115290591A (en) * | 2022-06-13 | 2022-11-04 | 湖北西塞山发电有限公司 | Instrument and method for measuring concentration of carbon dioxide in flue gas |
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2021
- 2021-08-13 CN CN202121910446.XU patent/CN215894546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115290591A (en) * | 2022-06-13 | 2022-11-04 | 湖北西塞山发电有限公司 | Instrument and method for measuring concentration of carbon dioxide in flue gas |
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