CN218994339U - Protection box for underwater strain gauge - Google Patents
Protection box for underwater strain gauge Download PDFInfo
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- CN218994339U CN218994339U CN202320020871.4U CN202320020871U CN218994339U CN 218994339 U CN218994339 U CN 218994339U CN 202320020871 U CN202320020871 U CN 202320020871U CN 218994339 U CN218994339 U CN 218994339U
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- strain gauge
- cover
- corrosion
- underwater
- shell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model provides an underwater strain gauge protection box, which comprises a shell, a corrosion-resistant protection cover arranged in the shell and a strain gauge arranged in the corrosion-resistant protection cover, wherein the strain gauge is fixed on a mounting bottom plate of the shell, and the corrosion-resistant protection cover is fixed on the mounting bottom plate of the shell and is in sealing connection with the mounting bottom plate to form a sealing protection cavity; the anti-corrosion protective cover is filled between the shell and the anti-corrosion protective cover, and the anti-corrosion protective cover is covered by the anti-corrosion protective cover.
Description
Technical Field
The utility model belongs to the technical field of strain gauge protection, and particularly relates to an underwater strain gauge protection box.
Background
The strain gauge is a detection device for detecting stress deformation of a detected structure, and is very important for monitoring the safety and reliability of the detected structure. When monitoring and detecting the underwater engineering structure, the strain gauge needs to be waterproof and protected so as to avoid the influence of the water environment on the detection precision of the strain gauge and even the damage of the strain gauge caused by the corrosion of the water to the strain gauge, and the current common practice generally adopts a steel plate jacket to cover the strain gauge so as to isolate the strain gauge from the water environment, thereby ensuring that the strain gauge can normally work in the underwater environment.
However, under a long-time underwater operation environment, a simple steel plate casing cannot realize effective protection of a strain gauge, water environment is inevitably corroded by water to cause water permeation of the steel plate casing and even a large amount of water inflow to the steel plate casing, so that the steel plate casing is caused to prevent water failure of the strain gauge, water permeation is still finally caused to continuously influence the detection precision of a strain gauge in the steel plate casing, and even the strain gauge is continuously corroded by water to cause strain gauge damage, and particularly when a seawater underwater engineering structure is monitored and detected, for example, when the strain detection is carried out on an over-sea electric underwater steel structure, the influence and damage of seawater on the water corrosion of the steel plate casing and on the strain gauge in a shell are more serious due to strong corrosiveness of the seawater. Therefore, there is a need to design a safe and reliable underwater strain gauge protection structure to effectively protect the strain gauge from water, so that the strain gauge can also operate for a long time in an underwater environment, and the detection work of the strain gauge on the underwater engineering structure is ensured to be normally carried out.
Disclosure of Invention
In view of the above, the utility model aims to provide an underwater strain gauge protection box, which can effectively protect a strain gauge from water environment, prevent the detection precision of the strain gauge from being influenced, and even prevent the strain gauge from being damaged due to water corrosion of the strain gauge by improving the waterproof structure of the strain gauge, so that the strain gauge can also operate for a long time in an underwater environment, and the detection work of the strain gauge on the underwater engineering structure is ensured to be normally carried out.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the underwater strain gauge protection box comprises a shell, a corrosion-resistant protection cover arranged in the shell and a strain gauge arranged in the corrosion-resistant protection cover, wherein the strain gauge is fixed on an installation bottom plate of the shell;
the corrosion-resistant protective cover is fixed on the mounting bottom plate of the shell and is in sealing connection with the mounting bottom plate to form a sealing protective cavity.
Further, the corrosion-resistant protective cover is a plastic protective cover and is made of engineering plastic.
Further, the underwater strain gauge protection box further comprises a can sealing material, wherein the can sealing material is filled between the shell and the corrosion-resistant protection cover and covers the corrosion-resistant protection cover.
Further, the can sealing material fills the gap between the shell and the corrosion-resistant protective cover.
Further, the can sealing material is pouring sealant.
Further, the can sealing material is epoxy pouring sealant.
Further, the shell is a closed shell formed by surrounding an installation bottom plate, a shell side plate and a cover plate, and a shell sealing interface for a wire penetrating through the strain gauge is formed in the shell side plate.
Further, a cover body sealing interface for a wire passing through the strain gauge is formed on a cover body side plate of the corrosion-resistant protective cover.
Further, the cover sealing interface on the cover side plate is adjacent to and coaxially arranged with the housing sealing interface on the housing side plate.
Further, the corrosion-resistant protective cover is a bottom open mask body formed by surrounding a cover plate and a mask body side plate.
Compared with the prior art, the utility model has the following beneficial effects: the underwater strain gauge protection box provided by the utility model is improved on a waterproof structure of a strain gauge, and comprises a shell, a corrosion-resistant protection cover arranged in the shell and a strain gauge arranged in the corrosion-resistant protection cover, wherein the strain gauge is fixed on an installation bottom plate of the shell, and the corrosion-resistant protection cover is fixed on the installation bottom plate of the shell and is in sealing connection with the installation bottom plate to form a sealing protection cavity; the underwater strain gauge protection box further comprises a can sealing material, wherein the can sealing material is filled between the shell and the corrosion-resistant protection cover and covers the corrosion-resistant protection cover, so that the waterproof protection of the strain gauge is further enhanced by setting the can sealing material between the shell and the corrosion-resistant protection cover again on the basis of the shell and the corrosion-resistant protection cover, and water seepage can be effectively prevented from continuously and inwards penetrating to influence and destroy the strain gauge. Therefore, the underwater strain gauge protection box can effectively protect the underwater strain gauge in a waterproof manner through multiple waterproof structural designs, and is excellent in performance, safe and reliable.
Drawings
FIG. 1 is a schematic view of the structure of an underwater strain gauge protection case according to the present utility model;
FIG. 2 is a schematic view of the structure of the housing of FIG. 1;
FIG. 3 is a schematic view of the corrosion resistant shield of FIG. 1;
fig. 4-9 are schematic views of the manufacturing flow of the underwater strain gauge protection box according to the present utility model.
The reference numerals in the figures are illustrated as follows:
1. outer casing
1-1 mounting base plate
1-2 side plate of shell
1-2-1 housing seal interface
1-3 cover plate
2. Corrosion-resistant protective cover
2-1 cover plate
2-2 cover side plate
2-2-1 cover sealing interface
3. Can sealing material
4. Sealed protective cavity
5. Strain gauge
6. Underwater object to be measured
Detailed Description
The following detailed description of the utility model is further detailed in conjunction with the accompanying drawings, and it is evident that the following detailed description is merely illustrative of the utility model and is not intended to limit the scope of the utility model.
The utility model provides an underwater strain gauge protection box, which aims to realize effective waterproof protection of an underwater strain gauge through multiple waterproof structure designs of a waterproof structure of a strain gauge, and has excellent performance, safety and reliability. As shown in fig. 1-3, the underwater strain gauge protection box comprises a shell 1, a corrosion-resistant protection cover 2 arranged in the shell 1 and a strain gauge 5 arranged in the corrosion-resistant protection cover 2, wherein the strain gauge 5 is fixed on a mounting bottom plate 1-1 of the shell 1, the corrosion-resistant protection cover 2 is fixed on the mounting bottom plate 1-1 of the shell 1 and is in sealing connection with the mounting bottom plate 1-1 to form a sealing protection cavity 4, therefore, the underwater strain gauge protection box can effectively protect the underwater strain gauge 5 by arranging the corrosion-resistant protection cover 2 on the basis of the shell 1, finally, the detection precision of the strain gauge is prevented from being influenced by water environment, and even the strain gauge is prevented from being damaged due to water corrosion caused by the strain gauge, so that long-term operation of the strain gauge can be realized in an underwater environment, and the detection work of an underwater engineering structure of the strain gauge is ensured to be normally carried out. Specifically, the shell 1 may be a steel shell, which is a closed shell formed by surrounding an installation bottom plate 1-1, a shell side plate 1-2 and a cover plate 1-3, wherein the strain gauge 5 is welded on the installation bottom plate 1-1, and a shell sealing interface 1-2-1 for passing through a wire of the strain gauge 5 is also arranged on the shell side plate 1-2; the corrosion-resistant protective cover 2 is a bottom opening mask body formed by encircling a cover plate 2-1 and a cover body side plate 2-2, the bottom opening mask body is fixed on the mounting bottom plate 1-1 through sealant and is in sealing connection with the mounting bottom plate 1-1 to form a sealing protective cavity 4, the sealing protective cavity 4 does not press a strain gauge 5 to provide a normal working space for the strain gauge 5, a cover body sealing interface 2-2-1 for a wire passing through the strain gauge 5 is also arranged on the cover body side plate 2-2, and the cover body sealing interface 2-2-1 on the cover body side plate 2-2 and the shell sealing interface 1-2-1 on the shell side plate 1-2 are preferably adjacent and coaxially arranged. Optionally, the corrosion resistant shield 2 is preferably a plastic shield, made of engineering plastic; the cross section of the cover plate 2-1 of the corrosion resistant protective cover 2 is preferably arc-shaped, and is preferably arc-shaped; the sealing glue used for sealing connection of the corrosion resistant protective cover 2 and the mounting bottom plate 1-1 of the shell 1 is preferably epoxy sealing glue, and optionally, the sealing can be further enhanced by sticking adhesive tape at the glue applying position.
As a preferred embodiment, as shown in fig. 1, the underwater strain gauge protection box further comprises a can sealing material 3, wherein the can sealing material 3 is filled between the shell 1 and the corrosion-resistant protection cover 2 and covers the corrosion-resistant protection cover 2, so that the water-proof protection of the strain gauge is further enhanced by arranging the can sealing material 3 between the shell 1 and the corrosion-resistant protection cover 2 again, and the strain gauge can be effectively prevented from being influenced and damaged by water seepage and continuous inward infiltration. Alternatively, the potting compound 3 is preferably a potting compound, and preferably an epoxy potting compound, filling the gap between the housing 1 and the corrosion resistant shield 2.
When the underwater strain gauge protection box is manufactured and used, as shown in fig. 4-9, firstly, a cover plate 1-3 of a shell 1 is opened, a strain gauge 5 is fixed on a mounting bottom plate 1-1, and specifically, the strain gauge 5 is welded on the mounting bottom plate 1-1; then, the anti-corrosion protection cover 2 covers the strain gauge 5 and is fixed on the mounting baseplate 1-1 of the shell 1, the lead wires of the strain gauge 5 sequentially penetrate through the cover body sealing interface 2-2-1 and the shell sealing interface 1-2-1 to extend outwards, the anti-corrosion protection cover 2 is in sealing connection with the mounting baseplate 1-1 to form a sealing protection cavity 4, the sealing protection cavity 4 does not press the strain gauge 5 to provide a normal working space for the strain gauge 5, the anti-corrosion protection cover 2 is fixed on the mounting baseplate 1-1 through sealing glue and is in sealing connection with the mounting baseplate 1-1 to form the sealing protection cavity 4, the sealing glue is preferably epoxy sealing glue, and the glue can be further adhered at a glue applying position to strengthen sealing; then, pouring a can sealing material 3, wherein the can sealing material 3 at least covers the corrosion-resistant protective cover 2, and particularly, the gap between the shell 1 and the corrosion-resistant protective cover 2 is filled with epoxy pouring sealant; finally, the cover plate 1-3 of the housing 1 is closed and sealed and welded to be dead, thereby manufacturing an underwater strain gauge protection box, and when the strain detection is performed on an underwater engineering structure such as a steel plate, the finally manufactured underwater strain gauge protection box is directly fixed on an underwater object 6 to be detected, for example, the underwater strain gauge protection box is welded at the detection point position of the steel plate through the mounting bottom plate 1-1 of the housing 1.
The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. It should be noted that all modifications and equivalents made by those skilled in the art without departing from the spirit and technical spirit of the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. The underwater strain gauge protection box is characterized by comprising a shell (1), a corrosion-resistant protection cover (2) arranged in the shell (1) and a strain gauge (5) arranged in the corrosion-resistant protection cover (2), wherein the strain gauge (5) is fixed on a mounting bottom plate (1-1) of the shell (1);
the corrosion-resistant protective cover (2) is fixed on the mounting bottom plate (1-1) of the shell (1) and is in sealing connection with the mounting bottom plate (1-1) to form a sealing protective cavity (4).
2. The underwater strain gauge protection box as claimed in claim 1, wherein the corrosion resistant protection cover (2) is a plastic protection cover made of engineering plastic.
3. The underwater strain gauge protection box as claimed in claim 1, further comprising a can sealing material (3), the can sealing material (3) being filled between the housing (1) and the corrosion resistant shield (2) and covering the corrosion resistant shield (2).
4. A protective case for underwater strain gauges as claimed in claim 3, wherein the can sealing material (3) fills the gap between the housing (1) and the corrosion resistant shield (2).
5. An underwater strain gauge protection box as claimed in claim 3, characterized in that the can sealing material (3) is a pouring sealant.
6. The underwater strain gauge protection case as claimed in claim 5, wherein the can sealing material (3) is an epoxy potting adhesive.
7. An underwater strain gauge protection box as claimed in claim 3, wherein the housing (1) is a closed housing surrounded by a mounting base plate (1-1), a housing side plate (1-2) and a cover plate (1-3), and the housing side plate (1-2) is provided with a housing sealing interface (1-2-1) for a wire passing through the strain gauge (5).
8. The underwater strain gauge protection box as claimed in claim 7, wherein the cover side plate (2-2) of the corrosion-resistant protective cover (2) is provided with a cover sealing interface (2-2-1) for a wire passing through the strain gauge (5).
9. The underwater strain gauge protection case as claimed in claim 8, wherein the cover seal interface (2-2-1) on the cover side plate (2-2) is disposed adjacent to and coaxially with the housing seal interface (1-2-1) on the housing side plate (1-2).
10. The underwater strain gauge protection box as claimed in claim 8, wherein the corrosion-resistant protective cover (2) is a bottom opening mask body formed by surrounding a cover plate (2-1) and a mask body side plate (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320020871.4U CN218994339U (en) | 2023-01-05 | 2023-01-05 | Protection box for underwater strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320020871.4U CN218994339U (en) | 2023-01-05 | 2023-01-05 | Protection box for underwater strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218994339U true CN218994339U (en) | 2023-05-09 |
Family
ID=86225495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320020871.4U Active CN218994339U (en) | 2023-01-05 | 2023-01-05 | Protection box for underwater strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218994339U (en) |
-
2023
- 2023-01-05 CN CN202320020871.4U patent/CN218994339U/en active Active
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