CN210953221U - Pressure sensor pressure chamber testing device - Google Patents
Pressure sensor pressure chamber testing device Download PDFInfo
- Publication number
- CN210953221U CN210953221U CN201922221221.2U CN201922221221U CN210953221U CN 210953221 U CN210953221 U CN 210953221U CN 201922221221 U CN201922221221 U CN 201922221221U CN 210953221 U CN210953221 U CN 210953221U
- Authority
- CN
- China
- Prior art keywords
- pressure chamber
- pressure
- pressure sensor
- sensor
- pressing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A pressure sensor pressure chamber testing device relates to a testing tool. The pressure chamber pressure plate is matched with a butterfly nut through a stud bolt to generate pressure which enables the spring to downwards extrude the pressure chamber pressure plate, and then the pressure chamber component to be measured and the pressure chamber shell are compressed and sealed. Gas enters the acquisition ends of the sensors through the cavity, a plurality of pressure sensors can be detected simultaneously, and the detection efficiency is greatly improved.
Description
Technical Field
The utility model relates to a test fixture, in particular to pressure sensor pressure chamber testing arrangement.
Background
In information acquisition facilities, sensors have become widely the primary tool for acquiring important information in the fields of nature and production. The existing pressure sensor testing device is complex, poor in sealing performance, low in efficiency and capable of only detecting a single sensor at a time.
Disclosure of Invention
The utility model aims at providing a pressure sensor pressure chamber testing arrangement to the not enough of prior art existence.
The utility model adopts the technical proposal that: a pressure sensor pressure chamber testing device is characterized by comprising a tested pressure chamber assembly, a pressure chamber pressing plate, a pressure chamber shell, a pressure chamber bottom plate and pressure chamber bottom legs, wherein the pressure chamber shell consists of a bottom panel with an annular air groove and a plate surface with a pressure sensor round hole; the pressure chamber assembly to be measured is arranged in a pressure sensor round hole on the pressure chamber shell, a pressure sensor is arranged in the pressure chamber assembly to be measured, a spring is arranged between every two pressure chamber assemblies to be measured, a pressure chamber pressing plate is arranged above the spring, a stud bolt is connected onto the pressure chamber pressing plate, and the stud bolt is matched with a butterfly nut to generate pressure for enabling the spring to downwards extrude the pressure chamber pressing plate; the lower part of the pressure chamber shell is connected with a pressure chamber bottom plate, and the lower part of the pressure chamber bottom plate is connected with pressure chamber bottom legs.
In the scheme, the tested pressure cabin assembly comprises an opening pad and a pressure sensor shell, and the lower end of the opening pad is connected with the pressure sensor shell; one end of the side wall of the opening pad is opened, a notch for placing a sensor wire is arranged in the opening direction, and a circular groove is formed in the lower end of the shell of the pressure sensor.
In the scheme, the annular O-shaped ring is arranged in the circular groove.
In the above scheme, the pressure sensor shell is made of plastic.
In the scheme, the middle of the pressure chamber pressing plate is provided with a round hole for connecting the stud bolt, two ends of the bottom of the pressure chamber pressing plate are respectively provided with a convex spherical surface, and the convex spherical surfaces are in contact with the surface of the tested pressure chamber component when the stud bolt is matched with the butterfly nut to generate pressure.
In the scheme, the pressure chamber shell is connected with the pressure chamber bottom plate through screws.
The utility model has the advantages that: the pressure sensor pressure chamber testing device comprises tested pressure chamber components, pressure chamber pressing plates, pressure chamber shells, a pressure chamber bottom plate and pressure chamber bottom legs, wherein pressure sensors are placed in the tested pressure chamber components, a spring is installed between every two tested pressure chamber components, the pressure chamber pressing plates are arranged above the springs, the pressure chamber pressing plates are matched with butterfly nuts through stud bolts to generate pressure which enables the springs to downwards extrude the pressure chamber pressing plates, and the tested pressure chamber components and the pressure chamber shells are tightly pressed and sealed. Gas enters the acquisition ends of the sensors through the cavity, a plurality of pressure sensors can be detected simultaneously, and the detection efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a pressure chamber testing device of an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a connection structure of a pressure measuring chamber assembly and a pressure chamber housing according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a pressure measurement chamber assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of an embodiment of the present invention showing a structure of an opening pad;
fig. 6 is a schematic structural diagram of a pressure sensor housing according to an embodiment of the present invention;
FIG. 7 is a schematic view of a pressure plate structure of the pressure chamber according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a pressure chamber shell in an embodiment of the present invention;
fig. 9 is a schematic structural view of a pressure chamber bottom plate in the embodiment of the present invention;
fig. 10 is a schematic structural view of a pressure chamber bottom leg in an embodiment of the present invention;
the numbers in the figure illustrate the following: the pressure sensor comprises a 1O-shaped ring, 2 stud bolts, 3 springs, 4 tested pressure chamber components, 41 opening gaskets, 42 pressure sensor shells, 5 pressure chamber pressing plates, 51 round holes, 52 round spherical surfaces, 6 pressure chamber shells, 61 bottom panels, 611 sealing grooves, 612 annular air grooves, 613 vent holes, 62 plate surfaces, 621 pressure sensor round holes, 622 air passages, 7 pressure chamber bottom plates, 8 pressure chamber bottom legs, 9 hexagon screws and 10 butterfly nuts.
Detailed Description
The above objects, features and advantages of the present invention will be more clearly understood and the present invention will be described in more detail with reference to the accompanying drawings 1 to 10 and the detailed description thereof.
The pressure sensor pressure chamber testing device in the embodiment comprises a tested pressure chamber assembly 4, a pressure chamber pressing plate 5, a pressure chamber shell 6, a pressure chamber bottom plate 7 and pressure chamber bottom legs 8. The measured pressure chamber assembly 4 comprises an opening pad 41 and a pressure sensor shell 42, wherein the opening pad 41 is made of aluminum alloy, and the pressure sensor shell 42 is made of plastic. The lower end of the open pad 41 is connected to a pressure sensor housing 42. One end of the side wall of the opening pad 41 is opened, a notch for preventing a sensor wire is arranged in the opening direction, two circular grooves are formed in the lower end of the pressure sensor shell 42, annular O-shaped rings 1 are respectively arranged in the circular grooves for sealing, and a certain sealing effect is achieved at the position of the interface.
The pressure chamber housing 6 in this embodiment is made of an aluminum alloy material, and is formed by connecting a bottom panel 61 and a plate surface 62 with a pressure sensor circular hole 621, wherein the bottom of the bottom panel 61 is provided with two sealing grooves 611 and an annular air groove 612 with different sizes, and one end of the bottom panel 61 is provided with an air vent 613. An O-ring is disposed within the seal groove 611. The surface of the plate surface 62 is provided with a plurality of pressure sensor round holes 621 and a plurality of screw holes for the installation and fixation of the pressure sensors, and the bottoms of the pressure sensor round holes 621 are provided with air passages 622. One end of the vent 613 is connected to an external air pipe, and the other end is connected to the annular air groove 612 and the air passage 622, thereby forming a cavity for air to pass through. The measured pressure chamber components 4 in this embodiment are installed in the pressure sensor circular holes 621 on the pressure chamber shell 6, the pressure sensors are placed in the measured pressure chamber components 6, the springs 3 are installed between every two measured pressure chamber components 4, and the pressure chamber pressing plates 5 are arranged above the springs 3. The spring 3 can be convenient for popping up the pressure cabin pressing plate 5, the middle round hole of the pressure cabin pressing plate 5 is manually lifted by the stud bolt 2 and the butterfly nut 10, and the pressure generated by the pressing plate is more compact when the pressure cabin pressing plate is lifted is larger.
The pressure chamber pressing plate 5 in the embodiment is made of aluminum alloy, the middle of the pressure chamber pressing plate 5 is provided with a round hole 51 for connecting the stud bolt 2, two ends of the bottom of the pressure chamber pressing plate 5 are respectively provided with a convex spherical surface 52, and the convex spherical surfaces 52 can be in surface contact with the pressure chamber component 4 to be measured when the stud bolt 2 is matched with the butterfly nut 10 to generate pressure, so that a certain pressure effect is achieved on the pressure chamber component 4 to be measured.
The lower portion of the pressure chamber shell 6 is connected with a pressure chamber bottom plate 7, the pressure chamber bottom plate 7 is made of aluminum alloy, a plurality of screw holes are formed in the surface of the pressure chamber bottom plate, and the pressure chamber shell 6 is integrally installed and connected through hexagon socket head cap screws 9, so that the sealing performance of the device is guaranteed.
The lower part of the pressure chamber bottom plate 7 is connected with a pressure chamber bottom leg 8. The pressure chamber bottom leg 8 is an aluminum alloy cylinder stud integrated design, threads are arranged above the pressure chamber bottom leg, the pressure chamber bottom leg can be directly installed and fixed with the screw hole of the pressure chamber pressing plate 5, and the pressure chamber bottom leg 8 provides a stable testing environment for the whole testing device.
The working principle of the pressure sensor pressure chamber testing device in the embodiment is as follows:
after the device installation is ready, place pressure sensor in the pressure sensor shell, the leakproofness of inspection device confirms the device back of being ready without mistakes, transfers pressure of admitting air, through gas pocket connecting device intake pipe, atmospheric pressure can continue to pass through each sensor in proper order, then observes each pressure sensor's of record change, if do not have the change, then pressure sensor has hidden danger.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A pressure sensor pressure chamber testing device is characterized by comprising a tested pressure chamber assembly, a pressure chamber pressing plate, a pressure chamber shell, a pressure chamber bottom plate and pressure chamber bottom legs, wherein the pressure chamber shell consists of a bottom panel with an annular air groove and a plate surface with a pressure sensor round hole; the pressure chamber assembly to be measured is arranged in a pressure sensor round hole on the pressure chamber shell, a pressure sensor is arranged in the pressure chamber assembly to be measured, a spring is arranged between every two pressure chamber assemblies to be measured, a pressure chamber pressing plate is arranged above the spring, a stud bolt is connected onto the pressure chamber pressing plate, and the stud bolt is matched with a butterfly nut to generate pressure for enabling the spring to downwards extrude the pressure chamber pressing plate; the lower part of the pressure chamber shell is connected with a pressure chamber bottom plate, and the lower part of the pressure chamber bottom plate is connected with pressure chamber bottom legs.
2. The pressure sensor pressure chamber test device of claim 1, wherein the pressure chamber assembly to be tested comprises an open gasket and a pressure sensor housing, the lower end of the open gasket being connected to the pressure sensor housing; one end of the side wall of the opening pad is opened, a notch for placing a sensor wire is arranged in the opening direction, and a circular groove is formed in the lower end of the shell of the pressure sensor.
3. The pressure sensor pressure chamber test apparatus of claim 2, wherein an annular O-ring is mounted in said circular groove.
4. The pressure sensor pressure chamber test apparatus of claim 2, wherein the pressure sensor housing is plastic.
5. The pressure sensor pressure chamber testing device of claim 1, wherein the pressure chamber pressing plate is provided with a round hole in the middle for connecting the stud bolt, and two ends of the bottom of the pressure chamber pressing plate are respectively provided with a convex spherical surface, and the convex spherical surfaces are in contact with the surface of the tested pressure chamber component when the stud bolt is matched with the butterfly nut to generate pressure.
6. The pressure sensor pressure chamber test apparatus of claim 1, wherein the pressure chamber housing is attached to the pressure chamber floor using screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221221.2U CN210953221U (en) | 2019-12-12 | 2019-12-12 | Pressure sensor pressure chamber testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922221221.2U CN210953221U (en) | 2019-12-12 | 2019-12-12 | Pressure sensor pressure chamber testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210953221U true CN210953221U (en) | 2020-07-07 |
Family
ID=71397782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922221221.2U Active CN210953221U (en) | 2019-12-12 | 2019-12-12 | Pressure sensor pressure chamber testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210953221U (en) |
-
2019
- 2019-12-12 CN CN201922221221.2U patent/CN210953221U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106706220B (en) | Device for testing sealing performance of rubber O-shaped ring in high-pressure hydrogen environment | |
| CN209117278U (en) | Rubber seal rings for seal characteristic detection device under a kind of high pressure hydrogen | |
| CN210953221U (en) | Pressure sensor pressure chamber testing device | |
| CN206268586U (en) | A kind of simple pressure measurement valve | |
| CN210834018U (en) | Sealing ring and sealing leakage detection equipment | |
| CN107515075B (en) | Device for detecting ring sealing performance of graphite sealing ring | |
| CN210375522U (en) | Pressure sensor test fixture | |
| CN109282949B (en) | Special-shaped wire holder air tightness inspection device | |
| CN101246138B (en) | Membrane electrode non-destructive detection device | |
| CN203688163U (en) | Leakage-testing sealing device of engine cylinder cover VVT valve hole | |
| CN213902768U (en) | Helium leak detection tool | |
| CN215767500U (en) | Aviation pressure sensor's test fixture | |
| CN202853840U (en) | Cylinder pressure sensor mounting and fixing structure | |
| US6298716B1 (en) | Open engine cylinder compression testing device | |
| CN205014967U (en) | Aperture detector | |
| CN210499880U (en) | Sealing clamp for airspeed tube | |
| CN210400714U (en) | Negative pressure sensor calibration frock | |
| CN113432782A (en) | Die device for fixing differential pressure sensor to be detected | |
| CN210513579U (en) | Airtight screening test fixture | |
| CN208091640U (en) | A kind of circumference graphite grazing air leakage flow rate detection special fixture | |
| CN207585844U (en) | Device capable of sealing mouth of thin-wall container | |
| CN215217982U (en) | Ball cover leakproofness detection device | |
| CN206787936U (en) | O-ring knock test system | |
| CN218628838U (en) | Sealed bearing air tightness test frock | |
| CN214149729U (en) | Jar internal portion atmospheric pressure detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |