CN213397453U - T-shaped diaphragm soil pressure sensor - Google Patents
T-shaped diaphragm soil pressure sensor Download PDFInfo
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- CN213397453U CN213397453U CN202022100799.5U CN202022100799U CN213397453U CN 213397453 U CN213397453 U CN 213397453U CN 202022100799 U CN202022100799 U CN 202022100799U CN 213397453 U CN213397453 U CN 213397453U
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Abstract
The utility model discloses a T type diaphragm soil pressure sensor, which comprises a housin, the flange is installed on the casing top, the membrane chamber is installed to the casing bottom, T type diaphragm is installed to membrane chamber bottom, the liquid filling joint is installed on membrane chamber top, pressure sensor is installed on liquid filling joint top, the pressure sensor top extends to the flange outside. The utility model has the advantages that through the structural design of the T-shaped diaphragm, the soil pressure sensor can still stably work when the soil pressure sensor is subjected to unbalance loading, and has better unbalance loading prevention capability; the problem of high assembly difficulty when a sealing ring at a diaphragm is installed is solved; the sensors in the soil pressure sensor are independent standard individuals and can be selected, the performance of the sensors can be ensured, and the development and manufacturing production period of the whole product of the soil pressure sensor is shortened.
Description
Technical Field
The utility model relates to a pressure sensor technical field specifically is a T type diaphragm soil pressure sensor.
Background
At present, an earth pressure sensor is used as a main sensor to be applied to shield machine equipment and is used for measuring the pressure condition in an earth bin in the tunneling process of a shield machine. Because the abominable operating mode of shield structure machine, the earth under the excavation contains a large amount of rock gravel, friction and impact make conventional film piece just damaged very easily, consequently the design form of current soil pressure sensor diaphragm is the cylinder of thickening, can be called thickening diaphragm, but the impact of grit in the course of the work, vibrations, the great unbalance loading that the striking formed, it dies to make thickening diaphragm incline the card in the diaphragm chamber, the grit gets into also can damage the sealing washer, cause fluid leakage, make the sensor inefficacy, cause the shield structure machine can not work.
The prior art has the following defects: during the working process of a cylindrical thickened diaphragm of the soil pressure sensor, the diaphragm is easy to be subjected to unbalance loading, so that the diaphragm is inclined and clamped in a diaphragm cavity, and the sensor fails; the cylinder thickening diaphragm is in with the diaphragm chamber assembling process, and the diaphragm is thinner for the operator, still needs the installation sealing washer in addition, difficult centering during the assembly, the assembly difficulty.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a T type diaphragm soil pressure sensor to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a T type diaphragm soil pressure sensor, includes the casing, the flange is installed on the casing top, the membrane chamber is installed to the casing bottom, T type diaphragm is installed to membrane chamber bottom, the irritated liquid joint is installed on membrane chamber top, pressure sensor is installed on irritated liquid joint top, the pressure sensor top extends to the flange outside.
Preferably, a first sealing ring is arranged between the membrane cavity and the shell, and a second sealing ring is arranged between the T-shaped membrane and the membrane cavity.
Preferably, the flange and the shell are fixed by welding.
Preferably, the diaphragm chamber and the shell are connected through threads.
Preferably, the depth of the film cavity is greater than the height of the T-shaped film, the fit clearance between the lower part of the T-shaped film and the film cavity is greater than the fit clearance between the upper part of the T-shaped film and the film cavity, and the fit height between the lower part of the T-shaped film and the film cavity is less than the fit height between the upper part of the T-shaped film and the film cavity.
Compared with the prior art, the beneficial effects of the utility model are that: through the structural design of the T-shaped diaphragm, the soil pressure sensor can still stably work when the soil pressure sensor is subjected to unbalance loading, and has better unbalance loading prevention capability; the problem of high assembly difficulty when a sealing ring at a diaphragm is installed is solved; the sensors in the soil pressure sensor are independent standard individuals and can be selected, the performance of the sensors can be ensured, and the development and manufacturing production period of the whole product of the soil pressure sensor is shortened.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the membrane cavity of the present invention.
Fig. 3 is a schematic structural diagram of the T-shaped diaphragm of the present invention.
In the figure: 1. a flange; 2. a pressure sensor; 3. a housing; 4. a liquid filling joint; 5. a membrane cavity; 6. a first seal ring; 7. a second seal ring; 8. t-shaped diaphragm.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in the embodiment of the present invention, a T-shaped diaphragm soil pressure sensor includes a housing 3, a flange 1 is installed at the top end of the housing 3, a diaphragm cavity 5 is installed at the bottom end of the housing 3, a T-shaped diaphragm 8 is installed at the bottom of the diaphragm cavity 5, a liquid filling joint 4 is installed at the top end of the diaphragm cavity 5, a pressure sensor 2 is installed at the top end of the liquid filling joint 4, the top end of the pressure sensor 2 extends to the outer side of the flange 1, a first sealing ring 6 is arranged between the diaphragm cavity 5 and the housing 3, a second sealing ring 7 is arranged between the T-shaped diaphragm 8 and the diaphragm cavity 5, the flange 1 and the housing 3 are fixed by welding, the diaphragm cavity 5 and the housing 3 are connected by screw threads, the depth of the diaphragm cavity 5 is greater than the height of the T-shaped diaphragm 8, the fit gap between the lower portion of the T-shaped diaphragm 8 and the diaphragm cavity 5 is greater than, the matching height of the lower part of the T-shaped diaphragm 8 and the diaphragm cavity 5 is smaller than that of the upper part of the T-shaped diaphragm 8 and the diaphragm cavity 5; the pressure sensor 2, the liquid filling connector 4 and the membrane cavity 5 are connected through welding respectively, the flange 1 and the shell 3 are connected through welding, and the membrane cavity 5 and the shell 3 are connected through threads; a sealing ring is arranged between the membrane cavity 5 and the shell 3, so that muddy water is prevented from entering the soil pressure sensor in the tunneling process of the shield tunneling machine; the sealing glue and the sealing ring are arranged between the T-shaped membrane 8 and the membrane cavity 5, and the liquid and the muddy water which are filled into the membrane cavity are separated to play a role in sealing; the T-shaped diaphragm 8 is stressed, and the force is transmitted to the pressure sensor 2 through the liquid in the diaphragm cavity 5 to generate an electric signal; the soil pressure sensor has the advantages of simple structural design of parts, easy processing and manufacturing of parts, and convenient and efficient vacuumizing, liquid filling and debugging operation in the assembling process; when the T-shaped diaphragm 8 is assembled, the T-shaped diaphragm can be completely inserted into a T-shaped groove of the diaphragm cavity, the depth of the diaphragm cavity 5 is larger than the height of the T-shaped diaphragm 8, the fit clearance between the lower part of the T-shaped diaphragm 8 and the diaphragm cavity 5 is larger than the fit clearance between the upper part of the T-shaped diaphragm 8 and the diaphragm cavity 5, and the fit height between the lower part of the T-shaped diaphragm 8 and the diaphragm cavity 5 is smaller than the fit height between the upper part of the T-shaped diaphragm 8 and the diaphragm cavity 5, so that the force can act on the outer circular surface of the upper part of the diaphragm when the diaphragm is subjected to unbalance loading, a safe clearance is always formed between the outer circular surface of the lower part of the diaphragm and the diaphragm cavity 5, and the deformation of the sealing ring is also ensured within a reasonable safety range, otherwise, the; the centering performance of the sealing ring in the process of inserting the membrane into the membrane cavity along with the membrane is ensured, the guiding effect is achieved, and the installation and the protection of the sealing ring are facilitated.
The utility model discloses a theory of operation is: the pressure sensor 2, the liquid filling connector 4 and the membrane cavity 5 are connected through welding respectively, the flange 1 and the shell 3 are connected through welding, and the membrane cavity 5 and the shell 3 are connected through threads; a sealing ring is arranged between the membrane cavity 5 and the shell 3, so that muddy water is prevented from entering the soil pressure sensor in the tunneling process of the shield tunneling machine; the sealing glue and the sealing ring are arranged between the T-shaped membrane 8 and the membrane cavity 5, and the liquid and the muddy water which are filled into the membrane cavity are separated to play a role in sealing; the T-shaped diaphragm 8 is stressed, and the force is transmitted to the pressure sensor 2 through the liquid in the diaphragm cavity 5 to generate an electric signal; the soil pressure sensor has the advantages of simple structural design of parts, easy processing and manufacturing of parts, and convenient and efficient vacuumizing, liquid filling and debugging operation in the assembling process; when the T-shaped diaphragm 8 is assembled, the T-shaped diaphragm can be completely inserted into a T-shaped groove of the diaphragm cavity, the depth of the diaphragm cavity 5 is larger than the height of the T-shaped diaphragm 8, the fit clearance between the lower part of the T-shaped diaphragm 8 and the diaphragm cavity 5 is larger than the fit clearance between the upper part of the T-shaped diaphragm 8 and the diaphragm cavity 5, and the fit height between the lower part of the T-shaped diaphragm 8 and the diaphragm cavity 5 is smaller than the fit height between the upper part of the T-shaped diaphragm 8 and the diaphragm cavity 5, so that the force can act on the outer circular surface of the upper part of the diaphragm when the diaphragm is subjected to unbalance loading, a safe clearance is always formed between the outer circular surface of the lower part of the diaphragm and the diaphragm cavity 5, and the deformation of the sealing ring is also ensured within a reasonable safety range, otherwise, the; the centering performance of the sealing ring in the process of inserting the membrane into the membrane cavity along with the membrane is ensured, the guiding effect is achieved, and the installation and the protection of the sealing ring are facilitated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a T type diaphragm soil pressure sensor, includes casing (3), its characterized in that: flange (1) is installed on casing (3) top, membrane chamber (5) are installed to casing (3) bottom, T type diaphragm (8) are installed to membrane chamber (5) bottom, irritate liquid joint (4) are installed on membrane chamber (5) top, pressure sensor (2) are installed on irritated liquid joint (4) top, pressure sensor (2) top extends to the flange (1) outside.
2. The T-shaped diaphragm soil pressure sensor according to claim 1, wherein: a first sealing ring (6) is arranged between the film cavity (5) and the shell (3), and a second sealing ring (7) is arranged between the T-shaped diaphragm (8) and the film cavity (5).
3. The T-shaped diaphragm soil pressure sensor according to claim 1, wherein: the flange (1) and the shell (3) are fixed through welding.
4. The T-shaped diaphragm soil pressure sensor according to claim 1, wherein: the membrane cavity (5) is connected with the shell (3) through threads.
5. The T-shaped diaphragm soil pressure sensor according to claim 1, wherein: the degree of depth of diaphragm chamber (5) is greater than the height of T type diaphragm (8), the fit clearance of T type diaphragm (8) lower part and diaphragm chamber (5) is greater than the fit clearance of T type diaphragm (8) upper portion and diaphragm chamber (5), and the fit height of T type diaphragm (8) lower part and diaphragm chamber (5) is less than the fit height of T type diaphragm (8) upper portion and diaphragm chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100799.5U CN213397453U (en) | 2020-09-23 | 2020-09-23 | T-shaped diaphragm soil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022100799.5U CN213397453U (en) | 2020-09-23 | 2020-09-23 | T-shaped diaphragm soil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213397453U true CN213397453U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022100799.5U Active CN213397453U (en) | 2020-09-23 | 2020-09-23 | T-shaped diaphragm soil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213397453U (en) |
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2020
- 2020-09-23 CN CN202022100799.5U patent/CN213397453U/en active Active
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