CN221075664U - Gas detection sensor calibration structure - Google Patents
Gas detection sensor calibration structure Download PDFInfo
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- CN221075664U CN221075664U CN202322629006.2U CN202322629006U CN221075664U CN 221075664 U CN221075664 U CN 221075664U CN 202322629006 U CN202322629006 U CN 202322629006U CN 221075664 U CN221075664 U CN 221075664U
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a gas detection sensor calibration structure, which relates to the technical field of gas detection and comprises a gas detection sensor body and a connecting pipe arranged on one side surface of the gas detection sensor body, wherein an annular limiting plate is arranged on the outer wall of the connecting pipe; according to the utility model, the annular plate is pressed from one end of the connecting pipe, so that the fixing rod of the fixing assembly is clamped on the back surface of the annular limiting plate, the annular plate is mounted on the annular limiting plate, the connection of the calibration air inlet pipe is further realized, the operation is simple and convenient, and the working efficiency of mounting the calibration air inlet pipe is improved; simultaneously, the use of threads can be avoided, so that the phenomenon of air leakage between the calibration air inlet pipe and the connecting pipe is avoided.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a calibration structure of a gas detection sensor.
Background
When the sensor of the gas detector is seriously influenced by external environment or the sensor sensitivity is reduced or data drift is serious due to the occurrence of conditions such as sensor poisoning, the sensor needs to be calibrated so as to be in a stable working state; when the gas sensor is calibrated, the sampled gas is required to be kept at a relatively constant concentration, so that the sampled region is in a relatively airtight environment to ensure the constant concentration of the gas during calibration as far as possible; at present, most of the cases are carried out on the gas sensor in a laboratory environment, so that the gas detector of a gas detection sensor working site is required to be replaced or the sensor to be calibrated is required to be sent to a laboratory for unified calibration after being disassembled, and therefore a calibration structure is required to be used, the existing calibration structure adopts a threaded connection mode, but the gas detection sensor is required to be frequently disassembled to cause thread slipping, so that the connection of the gas sensor is unstable, and the calibration of the gas sensor is influenced; therefore, the above problems need to be solved and optimized.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a calibration structure of a gas detection sensor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a gas detection sensor calibration structure, includes gas detection sensor body and sets up the connecting pipe on gas detection sensor body side, be equipped with annular limiting plate on the connecting pipe outer wall, the cover is equipped with annular plate on the annular limiting plate outer wall, annular plate outer terminal surface is equipped with the demarcation intake pipe, even circular hole has been seted up on the annular plate outer wall, circular hole outer end is equipped with circular case, circular incasement is equipped with fixed subassembly.
Preferably, the fixed subassembly is including sliding the dead lever that sets up in circular incasement, the dead lever top activity runs through to circular case top and rigid coupling has the handle, the dead lever bottom activity runs through into in the annular plate, be equipped with the circular plate on the circular incasement dead lever outer wall, the cover is equipped with extrusion spring on the dead lever outer wall between circular plate and the circular case.
Preferably, the surface of the annular limiting plate opposite to the fixed rod is arc-shaped, and the bottom end of the fixed rod is ball-shaped.
Preferably, an annular sealing groove is formed in the front end face of the connecting pipe, and an annular sealing gasket is arranged on the inner end face of the calibration air inlet pipe in a matched mode.
Preferably, the annular sealing gasket is made of flexible rubber materials, and the thickness of the annular sealing gasket is larger than the height of the annular sealing groove.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the annular plate is pressed from one end of the connecting pipe, so that the fixing rod of the fixing assembly is clamped on the back surface of the annular limiting plate, the annular plate is mounted on the annular limiting plate, the connection of the calibration air inlet pipe is further realized, the operation is simple and convenient, and the working efficiency of mounting the calibration air inlet pipe is improved; simultaneously, the use of threads can be avoided, so that the phenomenon of air leakage between the calibration air inlet pipe and the connecting pipe is avoided.
Drawings
FIG. 1 is a schematic diagram of a front view structure of the present utility model;
FIG. 2 is a schematic view of the appearance structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of a calibrated air inlet pipe according to the present utility model;
fig. 4 is a partial enlarged view at a in fig. 3.
Number in the figure: 1. a gas detection sensor body; 2. an annular plate; 3. calibrating an air inlet pipe; 4. an annular limiting plate; 5. a connecting pipe; 6. an annular seal groove; 7. an annular gasket; 8. a fixed rod; 9. a circular plate; 10. extruding a spring; 11. a circular box; 12. a handle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples: referring to fig. 1-4, a gas detection sensor calibration structure comprises a gas detection sensor body 1 and a connecting pipe 5 arranged on one side surface of the gas detection sensor body 1, wherein an annular limiting plate 4 is arranged on the outer wall of the connecting pipe 5, an annular plate 2 is sleeved on the outer wall of the annular limiting plate 4, a calibration air inlet pipe 3 is arranged on the outer end surface of the annular plate 2, circular holes are uniformly formed in the outer wall of the annular plate 2, a circular box 11 is arranged at the outer end of each circular hole, and a fixing component is arranged in each circular box 11; the annular plate 2 is pressed from one end of the connecting pipe 5, so that the fixing rod 8 of the fixing assembly is clamped on the back of the annular limiting plate 4, the annular plate 2 is mounted on the annular limiting plate 4, the connection of the calibration air inlet pipe 3 is further realized, the operation is simple and convenient, and the working efficiency of the mounting of the calibration air inlet pipe 3 is improved; simultaneously, the use of threads can be avoided, so that the phenomenon of air leakage between the calibration air inlet pipe 3 and the connecting pipe 5 is avoided.
In the utility model, the fixing component comprises a fixing rod 8 which is arranged in a circular box 11 in a sliding manner, the top of the fixing rod 8 movably penetrates through the top of the circular box 11 and is fixedly connected with a handle 12, the bottom of the fixing rod 8 movably penetrates through the annular plate 2, a circular plate 9 is arranged on the outer wall of the fixing rod 8 in the circular box 11, and an extrusion spring 10 is sleeved on the outer wall of the fixing rod 8 between the circular plate 9 and the circular box 11.
In the utility model, the surface of the annular limiting plate 4 opposite to the fixed rod 8 is arc-shaped, and the bottom end of the fixed rod 8 is ball-shaped, so that the annular limiting plate 4 limits the fixed rod 8 when the calibration air inlet pipe 3 is installed, and the annular limiting plate 2 is convenient to directly install on the annular limiting plate 4, and the calibration air inlet pipe 3 is further convenient to install.
According to the utility model, the annular sealing groove 6 is formed in the front end surface of the connecting pipe 5, the annular sealing gasket 7 is arranged on the inner end surface of the calibration air inlet pipe 3 in cooperation with the annular sealing groove 6, and the sealing performance between the connecting pipe 5 and the calibration air inlet pipe 3 is improved through the use of the annular sealing groove 6 and the annular sealing gasket 7, so that the phenomenon of air leakage between the connecting pipe 5 and the calibration air inlet pipe 3 is avoided, and the use safety of the gas detection sensor is improved.
In the utility model, the annular sealing gasket 7 is made of flexible rubber material, so that the toughness of the annular sealing gasket 7 is improved, the annular sealing gasket 7 can extrude the calibration air inlet pipe 3 conveniently, the annular limiting plate 4 is in close contact with the fixed rod 8, and the mounting stability of the calibration air inlet pipe 3 is improved; and the thickness of the annular gasket 7 is greater than the height of the annular seal groove 6.
Working principle: when the calibrating air inlet pipe 3 is installed, the annular plate 2 is sleeved on the connecting pipe 5, the fixing rod 8 can move upwards when the bottom of the fixing rod 8 is contacted with the arc-shaped surface of the annular limiting plate 4, the fixing rod 8 is sprung up under the action of the extrusion spring 10 when the fixing rod 8 passes through the annular limiting plate 4, and then the fixing rod 8 is clamped on the annular limiting plate 4, so that the calibrating air inlet pipe 3 is installed; wherein, after demarcating intake pipe 3 and installing, annular sealing pad 7 can the joint in annular seal groove 6, realizes sealing between demarcating intake pipe 3 and connecting pipe 5, avoids gaseous leakage, and annular sealing pad 7 can extrude demarcating intake pipe 3 simultaneously, makes dead lever 8 and annular limiting plate 4 in close contact with to make demarcating intake pipe 3 and connecting pipe 5 stable connection, accomplish the demarcation to gas detection sensor body 1 simultaneously.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The utility model provides a gas detection sensor calibration structure, includes gas detection sensor body (1) and sets up connecting pipe (5) on a side of gas detection sensor body (1), its characterized in that: be equipped with annular limiting plate (4) on connecting pipe (5) outer wall, the cover is equipped with annular limiting plate (2) on annular limiting plate (4) outer wall, annular plate (2) outer terminal surface is equipped with marks intake pipe (3), even circular hole has been seted up on annular plate (2) outer wall, circular hole outer end is equipped with circular case (11), be equipped with fixed subassembly in circular case (11).
2. A gas detection sensor calibration structure according to claim 1, wherein: the utility model discloses a fixed subassembly, including sliding setting up dead lever (8) in circular case (11), dead lever (8) top activity runs through to circular case (11) top and rigid coupling has handle (12), dead lever (8) bottom activity is run through into in annular plate (2), be equipped with circular plate (9) on circular case (11) inner fixed lever (8) outer wall, the cover is equipped with extrusion spring (10) on the dead lever (8) outer wall between circular plate (9) and circular case (11).
3. A gas detection sensor calibration structure according to claim 2, wherein: the surface of the annular limiting plate (4) opposite to the fixed rod (8) is arc-shaped, and the bottom end of the fixed rod (8) is ball-shaped.
4. A gas detection sensor calibration structure according to claim 1, wherein: an annular sealing groove (6) is formed in the front end face of the connecting pipe (5), and an annular sealing gasket (7) is arranged on the inner end face of the calibration air inlet pipe (3) in a matched mode.
5. The gas detection sensor calibration structure according to claim 4, wherein: the annular sealing gasket (7) is made of flexible rubber materials, and the thickness of the annular sealing gasket (7) is larger than the height of the annular sealing groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629006.2U CN221075664U (en) | 2023-09-27 | 2023-09-27 | Gas detection sensor calibration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629006.2U CN221075664U (en) | 2023-09-27 | 2023-09-27 | Gas detection sensor calibration structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075664U true CN221075664U (en) | 2024-06-04 |
Family
ID=91258624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322629006.2U Active CN221075664U (en) | 2023-09-27 | 2023-09-27 | Gas detection sensor calibration structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075664U (en) |
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2023
- 2023-09-27 CN CN202322629006.2U patent/CN221075664U/en active Active
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