CN220602788U - Combined strain type wireless pressure sensor - Google Patents
Combined strain type wireless pressure sensor Download PDFInfo
- Publication number
- CN220602788U CN220602788U CN202321957548.6U CN202321957548U CN220602788U CN 220602788 U CN220602788 U CN 220602788U CN 202321957548 U CN202321957548 U CN 202321957548U CN 220602788 U CN220602788 U CN 220602788U
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- gasket
- hole
- pressure sensor
- wireless pressure
- shell
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- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 5
- 125000006850 spacer group Chemical group 0.000 description 14
- 238000010586 diagram Methods 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 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
- 238000012544 monitoring process Methods 0.000 description 1
Abstract
The utility model provides a combined strain type wireless pressure sensor, which comprises a shell, a first gasket, a strain type gasket and a second gasket, wherein the shell is provided with a gasket installation position; the first gasket is provided with first through-hole, and the strain gauge gasket is provided with the second through-hole, and the second gasket is provided with the third through-hole, and first through-hole, second through-hole and third through-hole cooperation form the bolt installation through-hole. The combined strain type wireless pressure sensor can ensure that the strain type gasket is uniformly stressed, and ensure the detection precision.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a combined strain type wireless pressure sensor.
Background
In the industrial field, bolts are indispensable fastening parts, support installation in construction engineering, connection installation of combined electrical equipment in electric power engineering and the like, the pretightening force of the bolts relates to the safety of engineering operation, along with the intelligent development of industry, the pretightening force of the bolts is monitored and monitored in real time, operation and maintenance plans can be formulated in time, a large amount of manpower and material resources are saved, and the method is also a necessary path for guaranteeing the safety and orderly operation of the engineering.
The patent application with the Chinese patent publication number of CN112924073A discloses a gasket sensor design for amplifying deformation quantity by arranging a cantilever structure and an inverted arch elastomer quadrangle star-shaped hollow structure, which has the defects of limited applicable pressure range, and the irreversible plastic deformation of a structure in the prior art is easy to occur under huge pressure to cause measurement errors in large engineering operation such as M16 bolts with strength grade of 8.8 and pretightening force standard of 72500N.
Therefore, more optimal pressure sensors need to be considered.
Disclosure of Invention
The utility model mainly aims to provide a combined strain type wireless pressure sensor which can ensure that strain gaskets are uniformly stressed and the detection precision is ensured.
In order to achieve the main purpose, the combined strain type wireless pressure sensor provided by the utility model comprises a shell, a first gasket, a strain type gasket and a second gasket, wherein the shell is provided with a gasket installation position, the first gasket, the strain type gasket and the second gasket are all positioned in the gasket installation position, and the first gasket, the strain type gasket and the second gasket are sequentially laminated from the top to the bottom of the shell; the first gasket is provided with first through-hole, and the strain gauge gasket is provided with the second through-hole, and the second gasket is provided with the third through-hole, and first through-hole, second through-hole and third through-hole cooperation form the bolt installation through-hole.
According to the scheme, the combined strain type wireless pressure sensor is provided with the first gasket, the strain type gasket and the second gasket which are sequentially laminated, so that the stress of the strain type gasket is more uniform when a bolt is installed, irreversible deformation is avoided, and the detection precision is ensured.
In a further scheme, the shell comprises an upper shell and a lower shell, and the upper shell is detachably connected with the lower shell; the upper shell is provided with a first gasket hole, the lower shell is provided with a second gasket hole, and the first gasket hole and the second gasket hole are matched to form a gasket installation position.
It follows that the housing includes an upper housing and a lower housing, which can be easily disassembled and assembled.
In a further aspect, the first spacer is located in the first spacer hole and the second spacer is located in the second spacer hole.
Therefore, the first gasket is positioned in the first gasket hole, and the second gasket is positioned in the second gasket hole, so that the installation of the gaskets can be facilitated.
In a further scheme, the periphery of first gasket is provided with first lug, and the position that the upper casing is located first gasket hole is provided with first breach, first lug and first breach block.
Therefore, the first lug is arranged on the periphery of the first gasket and is clamped with the first notch of the upper shell, so that synchronous rotation of the first gasket and the shell can be ensured.
In a further scheme, the number of the first protruding blocks is at least two, and the at least two first protruding blocks are uniformly arranged along the periphery of the first gasket; the number of the first notches is equal to that of the first bumps.
Therefore, at least two first convex blocks are uniformly arranged along the periphery of the first gasket, so that the first gasket and the upper shell can be ensured to be matched, and meanwhile, the gravity balance of the first gasket can be ensured.
In a further scheme, the periphery of second gasket is provided with the second lug, and the position that the upper casing is located second gasket hole is provided with the second breach, and second lug and second breach block.
Therefore, the second lug is arranged on the periphery of the second gasket and is clamped with the second notch of the lower shell, so that synchronous rotation of the second gasket and the shell can be ensured.
In a further scheme, the number of the second protruding blocks is at least two, and the at least two second protruding blocks are uniformly arranged along the periphery of the second gasket; the number of the second notches is equal to that of the second bumps.
Therefore, at least two second convex blocks are uniformly arranged along the periphery of the second gasket, so that the fit between the second gasket and the lower shell can be ensured.
In a further scheme, a circuit board is arranged in the shell and is electrically connected with the strain pad.
Therefore, the circuit board is electrically connected with the strain type gasket, so that pressure monitoring data of the strain type gasket can be acquired and transmitted.
Drawings
Fig. 1 is a block diagram of an embodiment of a combination strain gauge wireless pressure sensor of the present utility model.
Fig. 2 is a structural cross-sectional view of an embodiment of a combination strain gauge wireless pressure sensor of the present utility model.
Fig. 3 is a block diagram of a housing in an embodiment of a combination strain gauge wireless pressure sensor of the present utility model.
Fig. 4 is an exploded view of an embodiment of a combination strain gauge wireless pressure sensor of the present utility model.
Fig. 5 is a schematic diagram of the mounting structure of an embodiment of the combined strain gauge wireless pressure sensor of the present utility model.
The utility model is further described below with reference to the drawings and examples.
Detailed Description
As shown in fig. 1, 2 and 3, in the present embodiment, the combined strain gauge wireless pressure sensor includes a housing 1, a first gasket 2, a strain gauge gasket 3 and a second gasket 4, the housing 1 is provided with a gasket mounting position 14, the first gasket 2, the strain gauge gasket 3 and the second gasket 4 are all located in the gasket mounting position 14, and the first gasket 2, the strain gauge gasket 3 and the second gasket 4 are sequentially stacked from top to bottom of the housing 1. In this embodiment, in order to improve tolerance, the first gasket 2 and the second gasket 4 are toughened gaskets, the strain gauge gasket 3 is a steel strain gauge gasket, the strain gauge gasket 3 is internally packaged with a strain gauge, and the strain gauge can change in length when being stressed, and the strain gauge is converted into resistance change in proportion to change in length, so that pressure detection is performed. Tempered gaskets and steel strain gage gaskets are well known to those skilled in the art and will not be described in detail herein.
Referring to fig. 4, the housing 1 includes an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 are detachably connected. In the present embodiment, the upper case 11 and the lower case 12 are detachably connected by the bolt assembly 7. The upper case 11 is provided with a first spacer hole 111, the lower case 12 is provided with a second spacer hole 121, and the first spacer hole 111 and the second spacer hole 121 cooperate to form a spacer mounting position 14. The first gasket 2 is positioned in the first gasket hole 111, and the second gasket 4 is positioned in the second gasket hole 121.
The periphery of the first gasket 2 is provided with a first lug 22, and the position of the upper shell 11 at the first gasket hole 111 is provided with a first notch 112, and the first lug 22 is engaged with the first notch 112. The number of the first bumps 22 is at least two, the at least two first bumps 22 are uniformly arranged along the periphery of the first gasket 2, and the number of the first notches 112 is equal to the number of the first bumps 22. In the present embodiment, the number of the first notches 112 and the number of the first bumps 22 are three.
The second bump 42 is provided on the outer periphery of the second spacer 4, and the second notch 122 is provided at the position of the upper case 11 located in the second spacer hole 121, and the second bump 42 is engaged with the second notch 122. The number of the second bumps 42 is at least two, the at least two second bumps 42 are uniformly arranged along the outer periphery of the second gasket 4, and the number of the second notches 122 is equal to the number of the second bumps 42. In the present embodiment, the number of the second notches 122 and the number of the second bumps 42 are three.
The first spacer 2 is provided with a first through hole 21, the strain gauge spacer 3 is provided with a second through hole 31, the second spacer 4 is provided with a third through hole 41, and the first through hole 21, the second through hole 31 and the third through hole 41 cooperate to form the bolt mounting through hole 8.
As can be seen from fig. 2 and 4, a circuit board 5 is mounted in the housing 1, the circuit board 5 is located in the circuit board cavity 13 of the housing 1, and the circuit board 5 is electrically connected to the strain gauge pad 3 through a first electrode 51 and a second electrode 52.
When the combined strain type wireless pressure sensor is installed, referring to fig. 5, a bolt 20 is inserted into a bolt installation through hole 8 from the top of a combined strain type wireless pressure sensor 10, and a nut 30 is installed on the bolt 20 from the bottom direction of the combined strain type wireless pressure sensor 10 and is screwed, so that a nut 201 of the bolt 20 and the nut 30 press the combined strain type wireless pressure sensor 10, and the screwing degree of the bolt 20 can be detected by the combined strain type wireless pressure sensor 10.
From the above, the combined strain type wireless pressure sensor of the utility model is provided with the first gasket 2, the strain type gasket 3 and the second gasket 4 which are sequentially laminated, so that the stress of the strain type gasket 3 is more uniform when the bolts are installed, irreversible deformation is avoided, and the detection precision is ensured.
It should be noted that the foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modifications made to the present utility model by using the concept fall within the scope of the present utility model.
Claims (8)
1. A combination strain gauge wireless pressure sensor, characterized by: the device comprises a shell, a first gasket, a strain type gasket and a second gasket, wherein the shell is provided with a gasket installation position, the first gasket, the strain type gasket and the second gasket are all positioned in the gasket installation position, and the first gasket, the strain type gasket and the second gasket are sequentially laminated from the top to the bottom of the shell;
the first gasket is provided with a first through hole, the strain type gasket is provided with a second through hole, the second gasket is provided with a third through hole, and the first through hole, the second through hole and the third through hole are matched to form a bolt installation through hole.
2. The combination strain gauge wireless pressure sensor of claim 1, wherein:
the shell comprises an upper shell and a lower shell, and the upper shell is detachably connected with the lower shell;
the upper shell is provided with a first gasket hole, the lower shell is provided with a second gasket hole, and the first gasket hole and the second gasket hole are matched to form the gasket installation position.
3. The combination strain gauge wireless pressure sensor of claim 2, wherein:
the first gasket is located in the first gasket hole, and the second gasket is located in the second gasket hole.
4. A combination strain gauge wireless pressure sensor as in claim 3 wherein:
the periphery of first gasket is provided with first lug, the last casing is located the position in first gasket hole is provided with first breach, first lug with first breach block.
5. The combination strain gauge wireless pressure sensor of claim 4, wherein:
the number of the first protruding blocks is at least two, and the at least two first protruding blocks are uniformly arranged along the periphery of the first gasket;
the number of the first notches is equal to that of the first bumps.
6. The combination strain gauge wireless pressure sensor of claim 5, wherein:
the periphery of second gasket is provided with the second lug, the position that the upper casing is located the second gasket hole is provided with the second breach, the second lug with the second breach block.
7. The combination strain gauge wireless pressure sensor of claim 6, wherein:
the number of the second protruding blocks is at least two, and the at least two second protruding blocks are uniformly arranged along the periphery of the second gasket;
the number of the second gaps is equal to that of the second bumps.
8. The combination strain gauge wireless pressure sensor of any of claims 1 to 7, wherein:
and a circuit board is arranged in the shell and is electrically connected with the strain gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321957548.6U CN220602788U (en) | 2023-07-21 | 2023-07-21 | Combined strain type wireless pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321957548.6U CN220602788U (en) | 2023-07-21 | 2023-07-21 | Combined strain type wireless pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220602788U true CN220602788U (en) | 2024-03-15 |
Family
ID=90178480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321957548.6U Active CN220602788U (en) | 2023-07-21 | 2023-07-21 | Combined strain type wireless pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220602788U (en) |
-
2023
- 2023-07-21 CN CN202321957548.6U patent/CN220602788U/en active Active
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