CN219736735U - Device for detecting air tightness - Google Patents
Device for detecting air tightness Download PDFInfo
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- CN219736735U CN219736735U CN202321259122.3U CN202321259122U CN219736735U CN 219736735 U CN219736735 U CN 219736735U CN 202321259122 U CN202321259122 U CN 202321259122U CN 219736735 U CN219736735 U CN 219736735U
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- 238000001514 detection method Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a device for detecting air tightness, which comprises a base and a float flowmeter, wherein a placement groove for installing an infrared sensor is formed on the base, and a first air hole and a second air hole for connecting an air pressure pipe are formed at the bottom of the base; the float flowmeter is connected to the second air hole. According to the technical scheme, the sensor is arranged in the placing groove of the base, the first air hole of the base can be connected with the external pressure pipe, pressure is applied towards the inside of the base, air flow reaches the float flowmeter through the second air hole, the float flowmeter detects whether the pressure inside the base changes or is compared with the previous data, and further the problem that whether the sensor leaks air or not is detected.
Description
Technical Field
The utility model relates to the technical field of detection of infrared sensors, in particular to a device for detecting air tightness.
Background
The infrared gas detection technology has the advantages of wide measurement range, high precision, good selectivity, no poisoning, long service life, low power consumption, convenient operation and maintenance and the like. Gradually replace the traditional sensors such as electrochemistry, catalytic combustion and the like, and are widely popularized and applied in coal mines, petrochemical industry, natural gas pipelines, factories and public places. With the importance of people on the quality of living and production environments, the performance requirements on the infrared gas sensor are higher and higher, the precision of the infrared sensor is improved, and the sensor is miniaturized and integrated into wearable equipment such as a safety helmet and the like so as to be convenient to carry about, so that the safety of personnel in an operation place can be better ensured.
The existing infrared gas sensor needs to detect the air tightness of an optical cavity (air chamber) when in use and production, most cylindrical infrared sensors cannot accurately detect whether the air chamber leaks air or not in production assembly engineering, and batch detection cannot be realized, so that gas leaks to places outside a circuit and the cavity, and the whole sensitivity, resolution and measurement accuracy of the sensor are affected. And the measured gas can not be replaced timely and rapidly, so that the response time of the whole sensor is influenced. Therefore, in order to improve the detection precision and efficiency of the gas sensor, and realize the convenience, batch property and low cost of detection, a device for conveniently detecting the tightness of the gas chamber of the sensor needs to be designed. The quality of the air tightness directly influences the stability and the sensitivity of the gas sensor. The tightness of the gas sensor directly determines the stability and the use effect of the whole product, and when serious, the gas sensor directly influences the whole device to generate unpredictable loss. The detection convenience, the batchability and the low cost are problems to be solved urgently for sensor manufacturers.
At present, the gas tightness of the gas sensor cannot be detected in batch. There are many disadvantages in meeting the production requirements of high precision and high efficiency. The current measuring method is to let gas into the closed sensor air chamber to make its pressure stable at a certain value, then to disconnect the ventilation valve (valve is closed), after a certain time of standing, to measure whether the air chamber pressure changes. If there is a leak, the chamber pressure will drop. However, the existing problems are that only single measurement can be carried out, time and labor are consumed, and the single detection process is complex, so that mass production of enterprises is not facilitated.
In summary, how to design a detection device with simple operation, batch detection and low cost; is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the utility model mainly aims to provide a device for detecting air tightness, and aims to design detection equipment which is simple to operate and low in cost and is used for detecting a cylindrical sensor.
The technical scheme of the utility model for solving the technical problems is that the device for detecting the air tightness comprises a base and a float flowmeter, wherein a placement groove for installing an infrared sensor is formed on the base, and a first air hole and a second air hole for connecting an air pressure pipe are formed at the bottom of the base; the float flowmeter is connected to the second air hole.
In an embodiment of the present utility model, a first connection cap is provided on the first air hole, and the first connection cap is fixed on the base; the second air hole is provided with a second connecting cap, the second connecting cap is fixed on the base, and the first connecting cap and the second connecting cap are arranged along the circumferential interval of the base.
In an embodiment of the present utility model, a sealing ring is disposed at the bottom of the base, and the sealing ring is annular.
In an embodiment of the present utility model, the device for detecting air tightness further includes a pressing jig, the pressing jig including: the base is arranged on the prop stand; the clamp and the base are arranged on the strut frame in parallel, and the adjusting column of the vertical clamp is positioned on the upper side of the placing groove.
In one embodiment of the present utility model, the vertical jig includes: the clamping head, the adjusting shaft and the adjusting column are rotatably arranged on the column support; one end of the adjusting shaft is rotatably connected to the strut frame and is abutted against the pressing head for driving the pressing chuck to move on the strut frame; the adjusting column is movably arranged on the clamping head.
In an embodiment of the present utility model, the clamping head is formed with an adjustment slideway along a length direction of the clamping head, and the adjustment column is movably arranged in the adjustment slideway; the end of the adjusting column is provided with a nut fixing piece, and the nut fixing piece is connected to the adjusting column in a meshed mode.
In an embodiment of the present utility model, the column support is provided with a plurality of bases side by side, and the bases are connected in series; one side of each base is provided with one vertical clamp.
In an embodiment of the utility model, the device for detecting air tightness further includes an air pump, and the air pump is connected to the first connection cap on the first air hole.
According to the technical scheme, the sensor is arranged in the placing groove of the base, the first air hole of the base can be connected with the external pressure pipe, pressure is applied towards the inside of the base, air flow reaches the float flowmeter through the second air hole, the float flowmeter detects whether the pressure inside the base changes or is compared with the previous data, and further whether the sensor has the air leakage problem is detected.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an apparatus for detecting air tightness according to the present utility model;
fig. 2 is a schematic structural view of the base of the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Device for detecting air tightness | 30 | Compression clamp |
| 10 | Base seat | 31 | Strut frame |
| 11 | Placement groove | 32 | Vertical clamp |
| 12 | First air hole | 321 | Clamping head |
| 13 | Second air hole | 322 | Adjusting shaft |
| 14 | First connecting cap | 323 | Adjusting column |
| 15 | Second connecting cap | 324 | Adjustable slideway |
| 16 | Sealing ring | 325 | Nut fixing piece |
| 20 | Float flowmeter | 40 | Air pump |
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "several", "a plurality" or "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
The utility model provides a device for detecting air tightness, and aims to design detection equipment which is simple to operate and low in cost.
The specific structure of the device for airtightness detection according to the present utility model will be described in the following in the specific embodiment:
in the technical solution of the present embodiment, as shown in fig. 1 and 2, an air tightness detection device 100 includes a base 10 and a float flowmeter 20, wherein a placement groove 11 for mounting an infrared sensor is formed on the base 10, and a first air hole 12 and a second air hole 13 for connecting an air pressure pipe are formed at the bottom of the base 10; a float flow meter 20 is connected to the second air hole 13.
It can be understood that by placing the sensor in the placement groove 11 of the base 10, the first air hole 12 of the base 10 can be connected with an external pressure pipe, pressure is applied towards the inside of the base 10, air flows through the second air hole 13 to reach the float flowmeter 20, the float flowmeter 20 measures the pressure inside the base 10 at this time, whether the pressure is changed or is compared with the previous data, and then whether the sensor has the problem of air leakage is measured.
In a possible embodiment, before use, the air pump 40 is connected to the outside of the float flowmeter 20, the value of the float flowmeter 20 is read and recorded, then the air pump 40 and the float flowmeter 20 are disconnected, the air pump 40 is connected to the first air hole 12 externally so as to detect the cylindrical sensor in the opposite tank 11, the air pump 40 is connected externally, the float flowmeter 20 is connected to the second air hole 13, the float flowmeter 20 is at a stable flow value, and the air pump is kept stand for 2 minutes, and whether the flow value of the float flowmeter 20 matches the previously recorded value is observed so as to know whether the cylindrical sensor leaks air or not.
In an embodiment of the present utility model, as shown in fig. 2, a first connection cap 14 is disposed on the first air hole 12, and the first connection cap 14 is fixed on the base 10; the second air hole 13 is provided with a second connecting cap 15, the second connecting cap 15 is fixed on the base 10, and the first connecting cap 14 and the second connecting cap 15 are arranged at intervals along the circumferential direction of the base 10.
As can be appreciated, by providing the first connection cap 14 to be connected to the air pump 40 through the air pressure pipe, air is supplied through the air pump 40; by providing a second connection cap 15 to connect to the float flowmeter 20 through an air pipe.
In an embodiment of the present utility model, as shown in fig. 2, a sealing ring 16 is disposed at the bottom of the base 10, the sealing ring 16 is disposed at the bottom of the base 10, and the sealing ring 16 is annular.
It can be appreciated that, in order to ensure tightness between the sensor and the base 10, by arranging the sealing ring 16 at the bottom of the base 10, when the sensor is placed in the placement cavity of the base 10, the sensor abuts against the sealing ring 16, so as to increase tightness between the sensor and the sealing ring 16, the sealing ring 16 is annular, and the first air hole 12 and the second air hole 13 arranged at the bottom of the base 10 are not blocked.
In an embodiment of the present utility model, as shown in fig. 1, the apparatus 100 for detecting air tightness further includes a pressing jig 30, and the pressing jig 30 includes: a column support 31 and a vertical clamp 32, the base 10 is arranged on the column support 31; the jig is juxtaposed with the base 10 on the column holder 31, and the adjusting column 323 of the vertical jig 32 is located on the upper side of the placement groove 11.
It will be appreciated that in order to increase the tightness between the sensor and the base 10, by providing the vertical clamp 32 on the strut 31, when the sensor is placed in the placement groove 11 of the base 10, the sensor is compressed by the vertical clamp 32, so that there is a good tightness between the sensor and the base 10.
In one embodiment of the present utility model, as shown in fig. 1, the vertical clamp 32 includes a clamping head 321, an adjusting shaft 322, and an adjusting post 323, where the clamping head 321 is rotatably disposed on the post frame 31; one end of the adjusting shaft 322 is rotatably connected to the strut frame 31 and is abutted against the pressing head for driving the pressing head to move on the strut frame 31; an adjustment post 323 is movably disposed on the clamping head 321.
As can be appreciated, the adjusting post 323 on the clamping head 321 is used for pressing the sensor on the base 10, the clamping head 321 is rotatably arranged on the post frame 31 and is used for adjusting the distance between the adjusting post 323 and the placement groove 11, so that the sensor can be placed in the placement groove 11 conveniently; the clamping head 321 is connected with the adjusting shaft 322 and is used for driving the clamping head 321 to rotate on the strut frame 31; thereby adjusting the distance between the adjustment column 323 and the placement groove 11.
In one embodiment of the present utility model, as shown in fig. 1, the clamping head 321 is formed with an adjusting slideway 324 along the length direction of the clamping head 321, and an adjusting post 323 is movably arranged in the adjusting slideway 324; the end of the adjustment post 323 is provided with a nut mount 325, and the nut mount 325 is engaged with and coupled to the adjustment post 323.
It can be appreciated that, in order to adapt to the sensors with different heights or different sizes, the positions of the sensors in the adjusting column 323 and the base 10 are adjusted by movably arranging the adjusting column 323 on the adjusting slideway 324, so that the adjusting column 323 can be positioned at the middle position of the sensor, and the sensor is better pressed; by providing the nut holder 325 on the adjustment post 323, the nut holder 325 is connected to the adjustment post 323 by means of a threaded connection, and the distance between the nut holder 325 and the sensor can be adjusted by rotating the nut holder 325.
In an embodiment of the present utility model, as shown in fig. 1, a plurality of bases 10 are disposed on a column frame 31 side by side, and the plurality of bases 10 are connected in series; a vertical clamp 32 is provided on one side of each base 10.
It can be appreciated that the air tightness of the sensor can be tested in batch by arranging a plurality of bases 10 side by side and arranging the bases 10 in series through the ventilation air pipe. Each base 10 is provided with a vertical clamp 32 to secure the sensor on the base 10.
In an embodiment of the present utility model, as shown in fig. 1, the air tightness detecting apparatus 100 further includes an air pump 40, and the air pump 40 is connected to the first connection cap 14 on the first air hole 12.
As can be appreciated, the first air holes 12 at one end of the plurality of bases 10 connected in series are used for connecting the air pump 40, and the air pump 40 supplies air pressure; the second air hole 13 at the other end is used for connecting the float flowmeter 20 to achieve the effect of testing a plurality of sensors at a time, and the air pump 40 is externally connected with a power supply and a control switch.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (8)
1. An apparatus for airtightness detection, comprising:
the infrared sensor comprises a base, wherein a placement groove for accommodating the infrared sensor is formed in the base, and a first air hole and a second air hole for connecting an air pressure pipe are formed in the bottom of the base;
and the float flowmeter is connected to the second air hole.
2. The device for detecting air tightness according to claim 1, wherein a first connecting cap is arranged on the first air hole, and the first connecting cap is fixed on the base;
the second air hole is provided with a second connecting cap, the second connecting cap is fixed on the base, and the first connecting cap and the second connecting cap are arranged along the circumferential interval of the base.
3. The device for detecting air tightness according to claim 2, wherein a sealing ring is arranged at the bottom of the base, the sealing ring is arranged at the bottom of the base, and the sealing ring is annular.
4. The apparatus for airtightness detection according to claim 1, wherein the apparatus for airtightness detection further comprises a pressing jig including:
the base is arranged on the prop stand; and
the vertical clamp and the base are arranged on the strut frame in parallel, and an adjusting column of the vertical clamp is positioned on the upper side of the placing groove.
5. The apparatus for airtightness detection according to claim 4, wherein the vertical jig includes:
the clamping head is rotatably arranged on the strut frame;
one end of the adjusting shaft is rotatably connected to the strut frame and is abutted against the pressing head, and the adjusting shaft is used for driving the pressing chuck to move on the strut frame; and
The adjusting column is movably arranged on the clamping head.
6. The apparatus for airtightness detection according to claim 5, wherein the clamping head is formed with an adjustment slide along a length direction of the clamping head, the adjustment column being movably provided in the adjustment slide;
the end of the adjusting column is provided with a nut fixing piece, and the nut fixing piece is connected to the adjusting column in a meshed mode.
7. The apparatus for airtightness detection according to claim 4, wherein a plurality of the bases are provided side by side on the column holder, and the plurality of bases are connected in series; one side of each base is provided with one vertical clamp.
8. The apparatus of claim 2, further comprising an air pump connected to the first connection cap on the first air hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321259122.3U CN219736735U (en) | 2023-05-23 | 2023-05-23 | Device for detecting air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321259122.3U CN219736735U (en) | 2023-05-23 | 2023-05-23 | Device for detecting air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736735U true CN219736735U (en) | 2023-09-22 |
Family
ID=88030688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321259122.3U Active CN219736735U (en) | 2023-05-23 | 2023-05-23 | Device for detecting air tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736735U (en) |
-
2023
- 2023-05-23 CN CN202321259122.3U patent/CN219736735U/en active Active
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