CN213748897U - Detection device for measuring sensitivity of pressure sensor - Google Patents
Detection device for measuring sensitivity of pressure sensor Download PDFInfo
- Publication number
- CN213748897U CN213748897U CN202022959183.3U CN202022959183U CN213748897U CN 213748897 U CN213748897 U CN 213748897U CN 202022959183 U CN202022959183 U CN 202022959183U CN 213748897 U CN213748897 U CN 213748897U
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- pressure sensor
- detection box
- backup pad
- segment portion
- sensitivity
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 230000035945 sensitivity Effects 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a detection device for measuring the sensitivity of a pressure sensor, which comprises a detection box body and an air inlet group arranged in the detection box body, wherein a sensor support frame is arranged above the detection box body, and the sensor support frame is connected or separated with the detection box body in a sealing way through a driving group; the air inlet group is including arranging the air inlet of detection box lateral wall in and arranging the inlet channel in the detection box, still including arranging a plurality of branch holes of admitting air in the detection box in, the branch hole of admitting air includes upper segment portion and lower segment portion, upper segment portion and lower segment portion form narrow T type column structure under wide, the inner wall and the bottom of upper segment portion have first blotter, the sensor support frame will be along with the downstream of drive group and imbed pressure sensor's sense terminal to the upper segment portion of branch hole of admitting air in, and realize pressure sensor and the sealing connection in branch hole of admitting air. The utility model has the advantages of as follows: the sensor can be simultaneously detected, the detection efficiency is improved, and the detection precision of sensitivity is ensured.
Description
The technical field is as follows:
the utility model belongs to pressure sensor detection area, concretely relates to measure detection device of pressure sensor sensitivity.
Background art:
in the prior art, the detection of the force sensor is generally realized by sleeving an air pipe with or with a diameter close to that of the outer surface of the pressure sensor to be detected, enabling the pressure surface of the pressure sensor to face the air pipe, inputting gas from the air inlet of the air pipe, and enabling the gas to act on the pressure end surface of the pressure sensor to be detected, so that subsequent sensitivity detection operation is performed, but the operation method can only detect a single pressure sensor at each time, and the detection efficiency is low;
secondly, when the pressure-bearing end face of the pressure sensor is under the pressure of the air pipe, the sealing performance between the pressure sensor and the air pipe cannot be guaranteed, so that the phenomena of air leakage and the like occur, and the detection precision of the sensitivity of the pressure sensor is influenced.
The utility model has the following contents:
the utility model aims at overcoming the above not enough, provide a detection device for measuring pressure sensor sensitivity, can realize detecting simultaneously to a plurality of sensors, improve detection efficiency, guarantee the detection precision of sensitivity.
The purpose of the utility model is realized through the following technical scheme: a detection device for measuring the sensitivity of a pressure sensor comprises a detection box body and an air inlet group arranged in the detection box body, wherein a sensor support frame is arranged above the detection box body and is connected with or separated from the detection box body in a sealing manner through a driving group;
the air inlet group is including arranging the air inlet of detection box lateral wall in and arranging the inlet channel in the detection box, still including arranging a plurality of branch holes of admitting air in the detection box in, admit air branch hole vertically set up and with inlet channel, the air inlet intercommunication, outside air supply is connected to the air inlet, it includes upper segment portion and lower segment portion to admit air branch hole, upper segment portion and lower segment portion form wide T type column structure down, the inner wall and the bottom of upper segment portion have first blotter, the sensor support frame will be along with the downstream of drive group and imbed pressure sensor's sense terminal to the upper segment portion that admits air branch hole in, and realize pressure sensor and admit air the sealing connection in branch hole.
The utility model discloses a further improvement lies in: the sensor support frame includes the backup pad and arranges a plurality of through-holes in the backup pad in, and a plurality of through-holes correspond from top to bottom in proper order with a plurality of branch holes of admitting air, and pressure sensor runs through the through-hole setting in proper order, and has in the backup pad with the voltage sensor electric connection's that corresponds voltage detector, the inner wall of through-hole have with the second blotter of pressure sensor contact, the backup pad along with the downstream of drive group and realize sealed lid with the detection box and close.
The utility model discloses a further improvement lies in: the drive assembly is including arranging the extension of backup pad both sides in, extension protrusion in detection box setting, the extension of backup pad both sides corresponds the setting, it has the fixed block to detect the box and be located the extension under, vertical extension that runs through has the lead screw to the fixed block that corresponds, the lower extreme of lead screw is located the fixed block, and the bearing of establishing through outside cover is at the fixed block internal rotation, the lead screw is connected for the screw thread formula transmission with the extension, it reciprocates that the backup pad can be realized to the rotation lead screw, thereby realize a plurality of pressure sensor in the backup pad and admit air the sealed connection or the separation in branch hole.
The utility model discloses a further improvement lies in: the pressure sensor penetrates through the outer circumference of the upper side of the supporting plate, the fixing piece is sleeved on the outer circumference of the upper side of the supporting plate, and the fixing piece fixes the pressure sensor and the supporting plate.
The utility model discloses a further improvement lies in: the mounting is including the clamp on the cover is equipped with pressure sensor outer circumference, and the clamp comprises the left clamp body and the right clamp body that two symmetries set up, and including the side of the left clamp body and the right clamp body passes through the bolt with pressure sensor fixed spacing, the inner wall of the left clamp body and the right clamp body all has the third blotter, and the equal outside horizontal extension in the lower extreme outside of the left clamp body and the right clamp body has the connecting plate, and the lower extreme and the backup pad of connecting plate realize fixed being connected.
The utility model discloses a further improvement lies in: the backup pad is magnetic metal plate body material, and the lower extreme of connecting plate has the magnet with backup pad mutual actuation.
The utility model discloses a further improvement lies in: the lower extreme of backup pad has the block bulge loop to detecting the box extension, and the upper end of detecting the box has the ring channel that holds the gomphosis of block bulge loop, has sealed the pad in the ring channel.
Compared with the prior art, the utility model has the following advantage:
1. the detection device of the utility model limits a plurality of pressure sensors in the fixing part, can realize the simultaneous detection of a plurality of pressure sensors, improves the detection efficiency and greatly reduces the labor intensity; secondly, the pressure sensor is lifted up and down through the driving group, so that the pressure sensor can be quickly mounted and dismounted.
2. The pressure sensor after the installation has guaranteed pressure sensor and the connection gas tightness of the branch pipe that admits air under the effect of first blotter, second blotter and third blotter, takes place the phenomenon of gas leakage when avoiding exerting pressure to pressure sensor's detection terminal surface, and then has guaranteed the detection precision.
3. The side end face of the pressure sensor is fixed with the supporting plate through the fixing piece of the hoop structure, so that the pressure sensor is prevented from being separated from the air inlet branch pipe to generate air leakage under the condition of high pressure, and the detection precision is further ensured.
Description of the drawings:
fig. 1 is a schematic structural diagram of the detection device for measuring the sensitivity of the pressure sensor of the present invention.
Fig. 2 is an enlarged schematic view of structure a in fig. 1.
Fig. 3 is a top cross-sectional view of the pressure sensor and mount of fig. 1.
Reference numbers in the figures:
1-a detection box body, 2-an air inlet group, 3-a pressure sensor, 4-a sensor support frame and 5-a driving group;
21-air inlet, 22-air inlet channel, 23-air inlet branch hole, 231-upper segment part, 232-lower segment part and 233-first buffer cushion;
41-support plate, 42-through hole, 43-voltage detector, 44-second buffer pad, 45-extension, 46-clamping convex ring, 47-annular groove, 48-sealing pad, 49-fixing piece, 491-left clamp, 492-right clamp, 493-bolt, 494-third buffer pad, 495-connecting plate, 496-magnet;
51-fixed block, 52-lead screw and 53-bearing.
The specific implementation mode is as follows:
in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship, such as those based on the drawings, are only for convenience of description and simplification of description, and do not indicate or imply that the structures or units indicated must have a specific orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise specified or limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, and those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.
Fig. 1 and fig. 2 show an embodiment of a detection apparatus for measuring sensitivity of a pressure sensor according to the present invention, which includes a detection box 1 and an air inlet set 2 disposed in the detection box 1, wherein a sensor support frame 4 is disposed above the detection box 1, and the sensor support frame 4 is connected to or separated from the detection box 1 in a sealed manner by a driving set 5;
the air inlet group 2 comprises an air inlet 21 arranged on the side wall of the detection box body 1 and an air inlet channel 22 arranged in the detection box body 1, and further comprises a plurality of air inlet branch holes 23 arranged in the detection box body 1, the air inlet branch holes 23 are longitudinally arranged and communicated with the air inlet channel 22 and the air inlet 21, the air inlet 21 is connected with an external air source, each air inlet branch hole 23 comprises an upper section 231 and a lower section 232, the upper section 231 and the lower section 232 form a T-shaped structure with a wide upper part and a narrow lower part, a first cushion pad 233 is arranged on the inner wall and the bottom of the upper section 231, the sensor support frame 4 enables the detection end of the pressure sensor 6 to be embedded into the upper section 231 of the air inlet branch hole 23 along with the downward movement of the driving group 5, and the sealed connection between the pressure sensor 6 and the air inlet branch hole 23 is achieved.
The detection device of the utility model limits a plurality of pressure sensors 3 on the sensor support frame 4, can realize the simultaneous detection of a plurality of pressure sensors 3, improves the detection efficiency and greatly reduces the labor intensity; secondly, pressure sensor 3 realizes the oscilaltion through drive group 5 to realize dismantling pressure sensor 3's quick installation.
Wherein, admit air and divide hole 23 to adopt narrow T type column structure under wide, the vertical upper segment 231 who places at the branch hole 23 that admits air of pressure sensor 3 of being convenient for, and lower segment 232 and air inlet 21 intercommunication, the gaseous direct contact pressure sensor's of blow vent detection terminal surface, the realization is detected pressure sensor 3's sensitivity.
Further, the sensor support frame 4 includes a support plate 41 and a plurality of through holes 42 disposed on the support plate 41, the plurality of through holes 42 correspond to the plurality of air inlet branch holes 23 sequentially up and down, the pressure sensor 6 sequentially penetrates through the through holes 42, a voltage detector 43 electrically connected to the corresponding pressure sensor 6 is disposed on the support plate 41, a second buffer pad 44 contacting the pressure sensor 6 is disposed on an inner wall of the through hole 42, and the support plate 41 is hermetically covered with the detection box 1 along with the downward movement of the driving unit 5.
Further, the driving set 5 includes the extension 45 disposed on both sides of the supporting plate 41, the extension 45 protrudes from the detection box 1, the extension 45 disposed on both sides of the supporting plate 41 is disposed correspondingly, the detection box 1 is disposed under the extension 45 and has the fixing block 51, the vertical extension 45 penetrating through has the lead screw 52 to the corresponding fixing block 51, the lower end of the lead screw 52 is disposed in the fixing block 51, and the bearing 53 sleeved outside rotates in the fixing block 51, the lead screw 52 is in threaded transmission connection with the extension 45, the lead screw 52 is rotated to realize the up-and-down movement of the supporting plate 41, thereby realizing the sealed connection or separation of the plurality of pressure sensors 6 on the supporting plate 41 and the air inlet branch holes 23.
Further, a fixing member 49 is sleeved on the upper outer circumference of the pressure sensor 6 penetrating the support plate 41, and the fixing member 49 fixes the pressure sensor 6 and the support plate 41.
Further, as shown in fig. 3, the fixing member 49 includes a clamp sleeved on the outer circumference of the pressure sensor 6, the clamp is composed of a left clamp body 491 and a right clamp body 492 which are symmetrically arranged, the side ends of the left clamp body 491 and the right clamp body 492 fix and limit the pressure sensor 6 through a bolt 493, the inner walls of the left clamp body 491 and the right clamp body 492 are respectively provided with a third cushion 494, the outer sides of the lower ends of the left clamp body 491 and the right clamp body 492 are respectively provided with a connecting plate 495 extending outwards horizontally, and the lower end of the connecting plate 495 is fixedly connected with the supporting plate 41.
Further, the supporting plate 41 is made of a magnetic metal plate, and a magnet 496 is provided at a lower end of the connecting plate 495 to attract the supporting plate 41.
The working principle is as follows: meanwhile, the driving set 5 is rotated to move the sensor support frame 4 upwards, the plurality of pressure sensors 3 penetrate through the through holes 42 on the support plate 41, the clamp of the fixing piece is sleeved on the corresponding pressure sensor 3, but the clamping and fixing are not carried out, then the driving set 5 is rotated reversely, the screw rod 52 is rotated to drive the support plate 41 in threaded fit with the screw rod 52 to move downwards, the plurality of pressure sensors 3 vertically penetrate into the upper section 231 of the air inlet branch hole 23 until the support plate 41 is tightly attached to the detection box body 1, the pressure sensors 3 are manually pressed downwards, the lower end faces of the pressure sensors 3 are abutted against the bottom of the upper section 231, at the moment, the left clamp 491 and the right clamp 492 outside the pressure sensors 3 are clamped and fixed through bolts 493, then the magnet 496 of the connecting plate 495 below the clamp is attracted to the support plate 41 to realize the fixing, at the moment, the air inlet 21 is ventilated and pressurized to the air inlet branch hole 23, the voltage detector displays the pressure value of the gas received by the detection end face of the pressure sensor 3.
In this application, fixing piece 49 through the clamp structure carries out spacing fixed to pressure sensor 3 and backup pad 41, avoids pressure sensor 3 to produce gas leakage with the branch hole 23 emergence separation of admitting air after receiving pressure, guarantees to detect the precision.
Furthermore, the lower end of the support plate extends toward the detection box body to form a clamping convex ring 46, the upper end of the detection box body 1 is provided with an annular groove 47 for the clamping convex ring 46 to be embedded, and a sealing gasket 48 is arranged in the annular groove 46.
The present invention is not limited to the above-described embodiments, and the description of the embodiments and the description is only illustrative of the principles of the present invention, and various changes and modifications can be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A detection device for measuring sensitivity of a pressure sensor, characterized in that: the gas inlet group is arranged in the detection box body, a sensor support frame is arranged above the detection box body, and the sensor support frame is connected with or separated from the detection box body in a sealing manner through a driving group;
the air inlet group is including arranging the air inlet of detection box lateral wall in and arranging the inlet channel in the detection box in, still including arranging a plurality of branch holes of admitting air in the detection box in, the branch hole of admitting air vertically sets up and communicates with inlet channel, air inlet, outside air supply is connected to the air inlet, the branch hole of admitting air includes upper segment portion and lower segment portion, upper segment portion and lower segment portion form wide T type column structure down, the inner wall and the bottom of upper segment portion have first blotter, the sensor support frame will be along with the downstream of drive group and imbed pressure sensor's sense terminal to the upper segment portion in the branch hole of admitting air to realize pressure sensor and the sealed connection in the branch hole of admitting air.
2. A detecting device for measuring the sensitivity of a pressure sensor according to claim 1, wherein: the sensor support frame includes the backup pad and arranges a plurality of through-holes in the backup pad in, a plurality of through-holes correspond from top to bottom in proper order with a plurality of branch holes of admitting air, pressure sensor runs through the through-hole setting in proper order, just have in the backup pad with corresponding pressure sensor electric connection's voltage detector, the inner wall of through-hole has the second blotter with the pressure sensor contact, the backup pad realizes sealed lid with the detection box along with the downstream of drive group and closes.
3. A detecting device for measuring the sensitivity of a pressure sensor according to claim 2, wherein: the drive assembly is including arranging the extension of backup pad both sides in, extension protrusion in detection box setting, the extension of backup pad both sides corresponds the setting, it has the fixed block to detect the box and be located the extension under, and vertical extension to the fixed block that corresponds of running through has the lead screw, the lower extreme of lead screw is located the fixed block, and the bearing of establishing through outside cover is at the fixed block internal rotation, the lead screw is connected for the screw thread formula transmission with the extension, rotates reciprocating of backup pad can be realized to the lead screw to realize a plurality of pressure sensor in the backup pad and the sealed connection or the separation in branch hole of admitting air.
4. A detecting device for measuring the sensitivity of a pressure sensor according to claim 3, wherein: the pressure sensor runs through the upper side outer circumference of the supporting plate and is sleeved with a fixing piece, and the fixing piece fixes the pressure sensor and the supporting plate.
5. A sensing device for measuring the sensitivity of a pressure sensor according to claim 4, wherein: the mounting is located the clamp on the outer circumference of pressure sensor including the cover, the clamp comprises the left clamp body and the right clamp body that two symmetries set up, the side of the left side clamp body and the right clamp body passes through the bolt with pressure sensor fixed spacing including, the inner wall of the left side clamp body and the right clamp body all has the third blotter, the equal outside level extension in the lower extreme outside of the left side clamp body and the right clamp body has the connecting plate, the lower extreme and the backup pad of connecting plate realize fixed being connected.
6. A sensing device for measuring the sensitivity of a pressure sensor according to claim 5, wherein: the backup pad is the magnetic metal plate body material, the lower extreme of connecting plate has the magnet with backup pad mutual actuation.
7. A detecting device for measuring the sensitivity of a pressure sensor according to any one of claims 2 to 6, characterized in that: the lower extreme of backup pad has the block bulge loop to detecting the box extension, the upper end of detecting the box has the ring channel that holds the gomphosis of block bulge loop, sealed pad has in the ring channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959183.3U CN213748897U (en) | 2020-12-11 | 2020-12-11 | Detection device for measuring sensitivity of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959183.3U CN213748897U (en) | 2020-12-11 | 2020-12-11 | Detection device for measuring sensitivity of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213748897U true CN213748897U (en) | 2021-07-20 |
Family
ID=76835174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022959183.3U Expired - Fee Related CN213748897U (en) | 2020-12-11 | 2020-12-11 | Detection device for measuring sensitivity of pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213748897U (en) |
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2020
- 2020-12-11 CN CN202022959183.3U patent/CN213748897U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |