CN219573334U - Anti-overpressure type diaphragm capsule pressure gauge - Google Patents
Anti-overpressure type diaphragm capsule pressure gauge Download PDFInfo
- Publication number
- CN219573334U CN219573334U CN202320450800.8U CN202320450800U CN219573334U CN 219573334 U CN219573334 U CN 219573334U CN 202320450800 U CN202320450800 U CN 202320450800U CN 219573334 U CN219573334 U CN 219573334U
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- CN
- China
- Prior art keywords
- diaphragm capsule
- corrugated sheet
- pressure gauge
- sealing gasket
- joint
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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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an overpressure-preventing type diaphragm capsule pressure gauge which comprises a pressure gauge body, wherein the pressure gauge body comprises a gauge head, a pointer component and a diaphragm capsule component are connected in the gauge head, an air inlet pipe is connected to the gauge head, the diaphragm capsule component comprises an upper corrugated sheet and a lower corrugated sheet, a sealed pressure cavity is formed between the upper corrugated sheet and the lower corrugated sheet, a supporting rod is connected to the upper corrugated sheet of the diaphragm capsule component, the lower part of the supporting rod passes through the lower corrugated sheet and enters the air inlet pipe, a sealing gasket is further fixed at the tail end of the supporting rod, a sealing joint is connected to the air inlet pipe, and an air inlet gap is formed between the sealing joint and the sealing gasket. After the pressure of the diaphragm capsule pressure gauge exceeds a certain range, the gauge head of the diaphragm capsule pressure gauge can be sealed, so that gas is prevented from continuously entering, and damage to the diaphragm capsule component due to excessive deformation is avoided.
Description
Technical Field
The utility model belongs to the field of pressure gauges, and particularly relates to an anti-overpressure bellows pressure gauge.
Background
The diaphragm capsule pressure gauge consists of a measuring system, a transmission mechanism, an indicating part and a shell, and the working principle of the micro-pressure gauge (diaphragm capsule pressure gauge) is that the free end of the diaphragm capsule generates corresponding elastic deformation under the pressure action of a measured medium, the diaphragm capsule is transmitted by a pulling rod-gear transmission mechanism and amplified, a measured value is indicated on a dial plate by a pointer fixed on a gear shaft, but the current diaphragm capsule pressure gauge can only measure the pressure in a certain range, if the pressure exceeds the measuring range, the diaphragm capsule assembly in the diaphragm capsule pressure gauge is easily deformed due to overlarge pressure, so that the whole diaphragm capsule pressure gauge cannot be used continuously.
Disclosure of Invention
In order to solve one or more of the above defects in the prior art, the technical problem to be solved by the utility model is to provide an anti-overpressure type bellows pressure gauge, which can seal the gauge head of the bellows pressure gauge after the pressure exceeds a certain range, prevent gas from continuously entering and avoid damage caused by excessive deformation of a bellows component.
In order to achieve the above purpose, the utility model provides an overpressure-resistant diaphragm capsule pressure gauge, which comprises a pressure gauge body, wherein the pressure gauge body comprises a gauge head, a pointer component and a diaphragm capsule component are connected in the gauge head, an air inlet pipe is connected to the gauge head, the diaphragm capsule component comprises an upper corrugated sheet and a lower corrugated sheet, a sealed pressure cavity is formed between the upper corrugated sheet and the lower corrugated sheet, a supporting rod is connected to the upper corrugated sheet of the diaphragm capsule component, the lower part of the supporting rod passes through the lower corrugated sheet and enters the air inlet pipe, a sealing gasket is further fixed at the tail end of the supporting rod, a sealing joint is connected in the air inlet pipe, and an air inlet gap is formed between the sealing joint and the sealing gasket.
Further, the sealing gasket is a conical sealing gasket, the inner wall of the sealing joint is a conical inner wall, and the conical inner wall is matched with the conical sealing gasket.
Further, the lower end of the supporting rod is provided with a threaded joint, and the conical sealing gasket is connected to the threaded joint and is fastened through an adjusting nut.
Furthermore, the top of the sealing joint is also provided with a connecting ring, and the lower corrugated sheet is fixedly connected with the connecting ring.
Further, a connecting disc is arranged at the top of the supporting rod and is fixedly connected with the upper corrugated sheet through the connecting disc.
Further, the diameter of the threaded joint is smaller than the diameter of the support rod.
The beneficial effects of the utility model are as follows:
firstly, after the pressure of the diaphragm capsule pressure gauge exceeds a certain range, the upper corrugated sheet of the diaphragm capsule component can deform, and the sealing gasket is driven to be matched with the sealing joint during deformation, so that the gauge head of the diaphragm capsule pressure gauge can be sealed, gas is prevented from continuously entering, and damage to the diaphragm capsule component due to excessive deformation is avoided;
secondly, as the sealing gasket adopts a conical sealing gasket, the sealing gasket moves along with the support rod when the upper corrugated sheet moves upwards, and finally the sealing joint is effectively sealed;
thirdly, the conical sealing gasket is connected to the threaded joint, and finally is fastened through the adjusting nut, so that the conical sealing gasket is more convenient to install and disassemble, and is also convenient to replace if aging failure occurs.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model prior to modification;
FIG. 2 is a schematic view of the structure of the present utility model after modification;
fig. 3 is an enlarged view of the portion a of fig. 2 in the present utility model.
In the figure: 1. a pressure gauge body; 2. a gauge head; 3. a pointer assembly; 4. an air inlet pipe; 5. a corrugated sheet is arranged; 6. a lower corrugated sheet; 7. a support rod; 8. a sealing gasket; 9. sealing the joint; 10. a threaded joint; 11. an adjusting nut; 12. a connecting ring; 13. a connecting disc;
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 2-3, an overpressure-resistant diaphragm capsule pressure gauge comprises a pressure gauge body 1, wherein the pressure gauge body 1 comprises a gauge head 2, a pointer component 3 and a diaphragm capsule component are connected in the gauge head 2, the pointer of the pointer component 3 is driven to indicate pressure through deformation of the diaphragm capsule component, an air inlet pipe 4 is connected to a medium to be measured through the air inlet pipe 4, the diaphragm capsule component comprises an upper corrugated sheet 5 and a lower corrugated sheet 6, a sealed pressure cavity is formed between the upper corrugated sheet 5 and the lower corrugated sheet 6, a supporting rod 7 is connected to the upper corrugated sheet 5 of the diaphragm capsule component, the lower part of the supporting rod 7 penetrates through the lower corrugated sheet 6 and enters the air inlet pipe 4, a sealing gasket 8 is further fixed at the tail end of the supporting rod 7, a sealing joint 9 is connected in the air inlet pipe 4, and an air inlet gap is formed between the sealing joint 9 and the sealing gasket 8.
When the pressure gauge is used, gas enters a diaphragm box assembly in a gauge outfit 2 through an air inlet pipe 4, then an upper corrugated sheet 5 deforms, so that the pointer assembly 3 on the pressure gauge can accurately display pressure, when the gas is in a measuring range, even if the upper corrugated sheet 5 deforms, the sealing gasket 8 is driven to move, the sealing gasket 8 can not completely block the sealing joint 9, an air inlet gap exists between the sealing joint 9 and the sealing gasket 8, when the gas exceeds a certain pressure, the upper corrugated sheet 5 generates larger and can carry out recovery deformation, at the moment, the upper corrugated sheet 5 drives the sealing gasket 8 to move upwards, the sealing joint 9 is completely sealed, and at the moment, the gas can not enter the diaphragm box assembly any more, so that the pressure is prevented from continuously entering the diaphragm box, and the diaphragm box is prevented from being damaged due to large overpressure.
Further, the sealing gasket 8 is a conical sealing gasket 8, the inner wall of the sealing joint 9 is a conical inner wall, and the conical inner wall is matched with the conical sealing gasket 8. Specifically, the sealing gasket 8 is made of rubber, and the sealing gasket 8 can be well matched with the conical inner wall of the sealing joint 9 in the process of upwards moving the sealing gasket 8, and finally the sealing joint 9 is effectively sealed.
Further, the lower end of the supporting rod 7 is provided with a threaded joint 10, and the conical sealing gasket 8 is connected to the threaded joint 10 and is fastened by an adjusting nut 11. Specifically, a threaded joint 10 is connected below the supporting rod 7, the outer diameter of the threaded joint 10 is smaller than that of the supporting rod 7, so that the conical sealing gasket 8 can be effectively limited when being connected to the threaded joint 10, and meanwhile, the conical sealing gasket 8 can be quickly fixed through an adjusting nut 11.
Further, a connecting ring 12 is further provided at the top of the sealing joint 9, and the lower corrugated sheet 6 is fixedly connected with the connecting ring 12. Specifically, the top of the sealing joint 9 is also provided with a connecting ring 12, and the connecting ring 12 is fixedly connected with the lower corrugated sheet 6, so that the welding area between the lower corrugated sheet 6 and the sealing joint 9 is larger, and the connection is more stable.
Further, a connecting disc 13 is arranged at the top of the supporting rod 7, and the supporting rod is fixedly connected with the upper corrugated sheet 5 through the connecting disc 13. Through fixed connection dish 13 at branch 7 top, the area of connection is bigger when can making last ripple piece 5 and branch 7 connect, and the connection is also more firm.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (6)
1. The utility model provides an prevent excessive pressure formula diaphragm capsule manometer, includes the manometer body, this manometer body includes the gauge outfit, be connected with pointer component and diaphragm capsule subassembly in the gauge outfit, be connected with the intake pipe on the gauge outfit, the diaphragm capsule subassembly includes ripple piece and lower ripple piece, form a sealed pressure chamber between going up ripple piece and the lower ripple piece, its characterized in that, the last ripple piece of diaphragm capsule subassembly is connected with a branch, the branch below passes lower ripple piece and enters into among the intake pipe, the branch end still is fixed with a sealed pad, be connected with a sealing joint in the intake pipe, have the air inlet gap between sealing joint and the sealed pad.
2. An overpressure resistant bellows manometer as claimed in claim 1, wherein: the sealing gasket is a conical sealing gasket, the inner wall of the sealing joint is a conical inner wall, and the conical inner wall is matched with the conical sealing gasket.
3. An overpressure resistant bellows manometer as claimed in claim 2, wherein: the lower end of the supporting rod is provided with a threaded joint, and the conical sealing gasket is connected to the threaded joint and fastened through an adjusting nut.
4. An overpressure resistant bellows manometer as claimed in claim 3, wherein: the top of the sealing joint is also provided with a connecting ring, and the lower corrugated sheet is fixedly connected with the connecting ring.
5. An overpressure resistant bellows pressure gauge as set forth in claim 4 wherein: the top of the supporting rod is provided with a connecting disc which is fixedly connected with the upper corrugated sheet through the connecting disc.
6. An overpressure resistant bellows pressure gauge as set forth in claim 5 wherein: the diameter of the threaded joint is smaller than that of the support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320450800.8U CN219573334U (en) | 2023-03-10 | 2023-03-10 | Anti-overpressure type diaphragm capsule pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320450800.8U CN219573334U (en) | 2023-03-10 | 2023-03-10 | Anti-overpressure type diaphragm capsule pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219573334U true CN219573334U (en) | 2023-08-22 |
Family
ID=87664133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320450800.8U Active CN219573334U (en) | 2023-03-10 | 2023-03-10 | Anti-overpressure type diaphragm capsule pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219573334U (en) |
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2023
- 2023-03-10 CN CN202320450800.8U patent/CN219573334U/en active Active
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