CN211453347U

CN211453347U - Infrared combustible gas detector calibration cover

Info

Publication number: CN211453347U
Application number: CN201922406014.4U
Authority: CN
Inventors: 卜永华; 朱庆丰; 韦永林
Original assignee: Jiangsu Hippo Automation Equipment Co ltd
Current assignee: Jiangsu Hippo Automation Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-08
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a cover is markd to infrared combustible gas detector, include infrared combustible gas detector and mark the cover, infrared combustible gas detector's bottom intercommunication has the standpipe to the top intercommunication of marking the cover has communicating pipe, and the bottom of standpipe runs through communicating pipe and extends to the inside of communicating pipe, and the surface of standpipe is rotated and is connected with the cover shell to the inner wall of cover shell all is provided with the screw thread with the surface of communicating pipe, two mesh mutually between the screw thread, and the bottom intercommunication of marking cover one side has the intake pipe, the utility model relates to a mark cover technical field. This cover is markd to infrared combustible gas detector realizes outer combustible gas detector and marks the connection between the cover through adopting comparatively succinct structure, can simplify the step of installation effectively, operates more convenient, all sets up the logical groove with second sealing washer looks adaptation through the both sides of demarcating the cover, makes things convenient for the time extension that gas was markd the inside stop of cover, is favorable to gaseous detection.

Description

Infrared combustible gas detector calibration cover

Technical Field

The utility model relates to a mark cover technical field, specifically be an infrared combustible gas detector marks cover.

Background

A novel infrared gas sensor is adopted, and the sensor adopts an electric modulation infrared light source, so that a mechanical modulation part in the traditional method is omitted; meanwhile, a high-precision interference filter integrated infrared sensor and a single-beam dual-wavelength technology are adopted, a temperature compensation unit is integrated in the sensor, in addition, a dustproof and moistureproof design is added in the design, the test accuracy is improved, the real-time measurement of gases such as SO2, NO, CO2, CO, CH4, N2O and the like can be realized by replacing different sensors, the detector has the advantages of ultra-long service life, no need of worrying about the poisoning phenomenon of the sensor, strong environmental adaptability, the technology fills the domestic blank, is an ideal choice for replacing imported like products, and the gas detector is provided with a calibration cover at a detection gas inlet of the gas detector in the tests of production, installation, later maintenance and periodic inspection, so that the gas concentration sensed by the gas inlet of the gas detector in the calibration cover is close to the gas concentration in a gas test box, and the rear end of the calibration cover is connected with a calibration gas source through a gas pipe.

When being connected between current demarcation cover and the infrared combustible gas detector, often can use comparatively complicated structure to connect, need use more instrument, and the installation procedure is comparatively complicated, and more part is connected moreover, can influence the gas tightness of connecting, influences the accuracy that detects data.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an infrared combustible gas detector marks cover to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a cover is markd to infrared combustible gas detector, includes infrared combustible gas detector and marks the cover, the bottom intercommunication of infrared combustible gas detector has the standpipe to the top intercommunication of marking the cover has communicating pipe, the bottom of standpipe runs through communicating pipe and extends to the inside of communicating pipe, the surface rotation of standpipe is connected with the cover shell to the inner wall of cover shell and the surface of communicating pipe all are provided with the screw thread, two mesh between the screw thread, the bottom intercommunication of marking cover one side has the intake pipe, and the bottom intercommunication of marking cover neck one side has the outlet duct, the one end intercommunication of intake pipe has first curved pipe to the one end intercommunication of outlet duct has the curved pipe of second, the top fixedly connected with gas collection fill of the curved pipe of second.

Preferably, the surface of the standpipe is fixedly connected with a first sealing ring, and the surface of the first sealing ring is in contact with the inner wall of the communicating pipe.

Preferably, the surfaces of the air inlet pipe and the air outlet pipe are fixedly connected with second sealing rings, and the surfaces of the second sealing rings are in contact with the inside of the calibration cover.

Preferably, the two sides of the calibration cover are both provided with through grooves matched with the second sealing ring, and the bottom of the inner wall of the calibration cover is fixedly connected with a trapezoidal plate.

Preferably, the surfaces of the air inlet pipe and the air outlet pipe are fixedly connected with transverse plates, the top and the bottom of each transverse plate are in threaded connection with a screw, one end of each screw penetrates through the calibration cover and extends into the calibration cover, and a threaded hole matched with the screw is formed in the calibration cover.

Preferably, the bottom of the calibration cover is fixedly connected with a mounting plate, and both sides of the top of the mounting plate are in threaded connection with mounting screws.

Compared with the prior art, the beneficial effects of the utility model are that: the bottom of the infrared combustible gas detector is communicated with a vertical pipe, the top of the calibration cover is communicated with a communicating pipe, the bottom end of the vertical pipe penetrates through the communicating pipe and extends into the communicating pipe, the surface of the vertical pipe is rotatably connected with a casing, the inner wall of the casing and the surface of the communicating pipe are respectively provided with a thread, the two threads are meshed, the bottom of one side of the calibration cover is communicated with an air inlet pipe, the bottom of one side of the collar of the calibration cover is communicated with an air outlet pipe, one end of the air inlet pipe is communicated with a first curved pipe, one end of the air outlet pipe is communicated with a second curved pipe, the top end of the second curved pipe is fixedly connected with a gas collecting hopper, the connection between the external combustible gas detector and the calibration cover is realized by adopting a simpler structure, the installation steps can be effectively simplified, the operation is more convenient and more convenient, and the bottom fixedly connected with trapezoidal plate of demarcation cover inner wall, the equal fixedly connected with diaphragm in surface of intake pipe and outlet duct, and the top of diaphragm and the equal threaded connection in bottom have the screw, the one end of screw runs through the inside of maring the cover and extending to the demarcation cover, the screw hole with screw looks adaptation is seted up to the inside of maring the cover, the setting of trapezoidal plate can make the speed of gas flow slow down, makes things convenient for the time extension of gas at the inside stop of maring the cover, is favorable to gaseous detection.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the substrate of FIG. 2;

fig. 4 is a partially enlarged view of the point B in fig. 2 according to the present invention.

In the figure: 1. an infrared combustible gas detector; 2. calibrating the cover; 3. a vertical tube; 4. a communicating pipe; 5. a housing; 6. a thread; 7. an air inlet pipe; 8. an air outlet pipe; 9. a first curved pipe; 10. a second curved pipe; 11. a gas collecting hopper; 12. a first seal ring; 13. a second seal ring; 14. a through groove; 15. a trapezoidal plate; 16. a transverse plate; 17. a screw; 18. a threaded hole; 19. mounting a plate; 20. and (5) mounting screws.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: a calibration cover of an infrared combustible gas detector comprises an infrared combustible gas detector 1 and a calibration cover 2, through grooves 14 matched with second sealing rings 13 are formed in two sides of the calibration cover 2, ladder-shaped plates 15 are fixedly connected to the bottom of the inner wall of the calibration cover 2, the arrangement of the ladder-shaped plates 15 can slow down the flowing speed of gas, the retention time of the gas in the calibration cover 2 is prolonged conveniently, the detection of the gas is facilitated, a mounting plate 19 is fixedly connected to the bottom of the calibration cover 2, mounting screws 20 are in threaded connection with two sides of the top of the mounting plate 19, a vertical pipe 3 is communicated with the bottom of the infrared combustible gas detector 1, a first sealing ring 12 is fixedly connected to the surface of the vertical pipe 3, the surface of the first sealing ring 12 is in contact with the inner wall of a communicating pipe 4, the top of the calibration cover 2 is communicated with the communicating pipe 4, and the bottom end of the vertical pipe 3 penetrates, the surface of the vertical pipe 3 is rotatably connected with a casing 5, the inner wall of the casing 5 and the surface of the communicating pipe 4 are both provided with threads 6, the two threads 6 are engaged, the connection between the external combustible gas detector 1 and the calibration cover 2 is realized by adopting a simpler structure, the installation steps can be effectively simplified, the operation is more convenient, the bottom of one side of the calibration cover 2 is communicated with an air inlet pipe 7, the surfaces of the air inlet pipe 7 and an air outlet pipe 8 are both fixedly connected with a second sealing ring 13, the surface of the second sealing ring 13 is contacted with the inside of the calibration cover 2, the surfaces of the air inlet pipe 7 and the air outlet pipe 8 are both fixedly connected with a transverse plate 16, the top and the bottom of the transverse plate 16 are both in threaded connection with a screw 17, one end of the screw 17 penetrates through the calibration cover 2 and extends to the inside of the calibration cover 2, the inside, the bottom of one side of the collar of the calibration cover 2 is communicated with an air outlet pipe 8, one end of the air inlet pipe 7 is communicated with a first curved pipe 9, one end of the air outlet pipe 8 is communicated with a second curved pipe 10, and the top end of the second curved pipe 10 is fixedly connected with an air collecting hopper 11.

The utility model discloses a theory of operation is: insert standpipe 3 bottom infrared combustible gas detector 1 into communicating pipe 4, rotatory cover shell 5, make the screw thread 6 of the inner wall of cover shell 5 and the screw thread 6 on 4 surfaces of communicating pipe mesh mutually, the inner wall of communicating pipe 4 will be hugged closely to first sealing washer 12, then inject intake pipe 7 and outlet duct 8 respectively into logical groove 14, the inner wall of logical groove 14 is hugged closely to second sealing washer 13, then in rotatory screw hole 18 of advancing of screw 17 on the diaphragm 16, accomplish

intake pipe

7 and 8 connections of outlet duct, install mounting panel 19 in the position that needs the installation through mounting screw 20.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a cover is markd to infrared combustible gas detector, includes infrared combustible gas detector (1) and marks cover (2), its characterized in that: the bottom of the infrared combustible gas detector (1) is communicated with a vertical pipe (3), the top of the calibration cover (2) is communicated with a communicating pipe (4), the bottom end of the vertical pipe (3) penetrates through the communicating pipe (4) and extends to the inside of the communicating pipe (4), the surface of the vertical pipe (3) is rotatably connected with a shell (5), threads (6) are arranged on the inner wall of the casing (5) and the surface of the communicating pipe (4), the two threads (6) are engaged with each other, an air inlet pipe (7) is communicated with the bottom of one side of the calibration cover (2), the bottom of one side of the collar of the calibration cover (2) is communicated with an air outlet pipe (8), one end of the air inlet pipe (7) is communicated with a first curved pipe (9), and one end of the air outlet pipe (8) is communicated with a second curved pipe (10), and the top end of the second curved pipe (10) is fixedly connected with an air collecting hopper (11).

2. The calibration hood for infrared combustible gas detector as claimed in claim 1, wherein: the surface of the vertical pipe (3) is fixedly connected with a first sealing ring (12), and the surface of the first sealing ring (12) is in contact with the inner wall of the communicating pipe (4).

3. The calibration hood for infrared combustible gas detector as claimed in claim 1, wherein: the surface of the air inlet pipe (7) and the surface of the air outlet pipe (8) are fixedly connected with second sealing rings (13), and the surfaces of the second sealing rings (13) are in contact with the inside of the calibration cover (2).

4. The calibration hood for infrared combustible gas detector of claim 3, wherein: the two sides of the calibration cover (2) are provided with through grooves (14) matched with the second sealing ring (13), and the bottom of the inner wall of the calibration cover (2) is fixedly connected with trapezoidal plates (15).

5. The calibration hood for infrared combustible gas detector as claimed in claim 1, wherein: the surface of the air inlet pipe (7) and the surface of the air outlet pipe (8) are both fixedly connected with transverse plates (16), the top and the bottom of each transverse plate (16) are both in threaded connection with screws (17), one ends of the screws (17) penetrate through the calibration cover (2) and extend to the inside of the calibration cover (2), and threaded holes (18) matched with the screws (17) are formed in the calibration cover (2).

6. The calibration hood for infrared combustible gas detector as claimed in claim 1, wherein: the bottom of the calibration cover (2) is fixedly connected with a mounting plate (19), and mounting screws (20) are in threaded connection with the two sides of the top of the mounting plate (19).