CN207585844U - A kind of device that thin-walled pressure vessel mouth can be sealed - Google Patents
A kind of device that thin-walled pressure vessel mouth can be sealed Download PDFInfo
- Publication number
- CN207585844U CN207585844U CN201721643249.XU CN201721643249U CN207585844U CN 207585844 U CN207585844 U CN 207585844U CN 201721643249 U CN201721643249 U CN 201721643249U CN 207585844 U CN207585844 U CN 207585844U
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- thin
- cover board
- silicone rubber
- pressure vessel
- walled
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Abstract
The utility model provides a kind of device that can be sealed to thin-walled pressure vessel mouth, is tested available for thin-walled fuel tank leak test.The sealing device includes cover board, silicone rubber seal, screw rod, supporting plate, silicon rubber tapered plug, thick washer, nut；Cover board is fixedly connected with silicone rubber seal；Screw rod one end is fixedly connected with supporting plate, and the other end sequentially passes through silicone rubber member, cover board, silicon rubber tapered plug and thick washer and fixed with nut.Silicone rubber seal makes silicone rubber seal be adjacent to thin-walled pressure vessel mouth end face, then squeeze silicon rubber tapered plug by nut using the pressure of the measuring air pressure in container, assembles one by the gap sealing of cover board and screw rod and with test container mouth, achievees the purpose that sealing.
Description
Technical field
The utility model is related to a kind of sealing device, specially a kind of device that can be sealed to thin-walled pressure vessel mouth is suitable for
To there is the sealing of thin-walled pressure vessel mouth centainly deformed when doing leakage test.
Background technology
Fuel tank oil accident in order to prevent needs to do fuel tank leak test experiment.We test into line trace fuel tank leak test
Investigation finds that fuel tank has several circular holes to be unable to reach fully sealed position during the experiment；During air pressure leakage check, hair
After existing reservoir port is mounted with sealing frock, the deformation of thin-walled reservoir port is serious, leads to not be fully sealed, there are gas leak phenomenons；It is thin
Atmospheric pressure can not be stablized in walled oil tank, affect the accuracy of fuel tank sealing test result.
To solve the sealing problem of thin-walled reservoir port, we have researched and developed a kind of dress that can be sealed to thin-walled pressure vessel mouth
It puts.
Invention content
The purpose of this utility model is that when solving the pressure test of thin-walled pressure vessel implication there are it is endless hermetically sealed the defects of, provide
It is a kind of can be to the device that thin-walled pressure vessel mouth reliably seals, to ensure the airtight reliability of test container, accuracy.
The utility model is achieved like this：
A kind of thin-walled pressure vessel mouth sealing device, including cover board, silicone rubber seal, screw rod, supporting plate, silicon rubber tapered plug, thickness
Washer, nut；Cover board is fixedly connected with silicone rubber seal；Screw rod one end is fixedly connected with supporting plate, and the other end sequentially passes through silicon
Rubber parts, cover board, silicon rubber tapered plug and thick washer are simultaneously fixed with nut.
Further, the rubber seal is bowl shaped structure, and silicone rubber seal is consolidated by pressing plate and sunk screw
It is scheduled in the cover board.
Further, the nut is hex nut.
This sealing device is caught in thin-walled pressure vessel mouth, then by supporting plate by tightening hex nut by silicone rubber seal
Vessel port end face is fitted in, while cover board is pressed in by container thin-walled on supporting plate, container thin-walled only by pressure, will not cause at this time
Vessel port deforms；Continue to tighten hex nut, silicon rubber tapered plug by hex nut pressure distortion, sealing screw rod and cover board it
Between gap.When testing air pressure raising, silicone rubber seal is adjacent to thin-walled pressure vessel mouth end face, and it is close to reach thin-walled pressure vessel mouth
The purpose of envelope.And it acts on pressure that silicone rubber seal seals and the gas pressure power of vessel port inner wall is mutually supported
Disappear, therefore do not easily cause vessel port deformation, convenient for sealing.
The utility model has the advantages that：
(1) test atmospheric pressure is made full use of to achieve the purpose that sealing, the deformation of thin-walled pressure vessel mouth is avoided and influences close
Seal effect.
(2) it is simple using step, supporting plate need to be only caught in thin-walled pressure vessel mouth, tighten hex nut, it is easy to use.
(3) pressure for tightening hex nut generation is pressed onto by vessel port thin-walled on supporting plate, will not cause thin-walled pressure vessel mouth
Deformation, therefore do not interfere with sealing effect.
(4) thin-walled pressure vessel mouth stress=thin-walled pressure vessel open area * measuring air pressures.But in this thin-walled pressure vessel mouth sealing device
In, silicone rubber seal employs bowl shaped structure, has preferable elasticity, toughness, can reliably be sealed with certain deflection
Thin-walled pressure vessel mouth.So device can be used for the sealing test of go-no-go thin-walled pressure vessel mouth.
(5) operating pressure≤240Kpa (pressure at expulsion for referring to pressure cooker security window) of this tooling.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of the utility model.
Fig. 2 is the axis side schematic diagram of the utility model.
Fig. 3 is the schematic elevation view of the utility model.
1. hex nut in the figure, 2. thick washers, 3. pressing plates, 4. silicone rubber seals, 5. supporting plates, 6. sunk screws, 7.
Cover board, 8. silicon rubber tapered plugs, 9. screw rods, 0. vessel port.
Specific embodiment
In order to preferably illustrate the technical solution of the utility model, carried out below by specific implementation case and with reference to attached drawing
Detailed description.
As shown in Figures 1 to 3, a kind of thin-walled pressure vessel mouth sealing device, including hex nut 1, thick washer 2, pressing plate 3, silicon rubber
Glue sealing element 4, supporting plate 5, sunk screw 6, cover board 7, silicon rubber tapered plug 8 and screw rod 9.
Supporting plate 5 is cuboid, and length is configured according to the vessel port sealed, and supporting plate 5 should can be caught in appearance
In device mouth.5 middle part of supporting plate is fixedly connected with 9 lower end of screw rod.
Cover board 7 is flattened cylindrical shape, and lower end opens up groove.Silicone rubber seal 4 is bowl-type, and inside is put into pressing plate 3.Countersunk head
Screw 6 passes through pressing plate 3 and silicone rubber seal 4 to screw in cover board 7, and silicone rubber seal 4 is made to be fixed together with cover board 7, and
And the groove of cover board 7 is exposed in the lower end of silicone rubber seal 4.The centre of cover board 7 and silicone rubber seal 4 is respectively provided with and screw rod 9
Matched hole is passed through for 9 upper end of screw rod.
Dug out among 7 upper end of cover board with the matched cone tank in 8 lower end of silicon rubber tapered plug, the lower end of silicon rubber tapered plug 8 is put into
In slot.Thick washer 2 is set on 8 top of silicon rubber tapered plug.It is respectively provided among silicon rubber tapered plug 8 and thick washer 2 matched with screw rod 9
Hole is passed through for 9 upper end of screw rod.
Hex nut 1 is screwed into from upper end in screw rod 9, adjustable-tightness degree.
In use, this sealing device is caught in thin-walled pressure vessel mouth 0 by supporting plate 5, then by tightening hex nut 1 by silicon
Rubber seal 4 is fitted in 0 end face of thin-walled pressure vessel mouth, while cover board 7 is pressed in by container thin-walled on supporting plate 5；Container thin-walled this
When only by pressure, vessel port 0 will not be caused to deform.Continue to tighten hex nut 1, silicon rubber tapered plug 8 by hex nut 1 pressure
Power deforms, and seals the gap between screw rod 9 and cover board 7.When testing air pressure raising, silicone rubber seal 4 is adjacent to thin-walled
0 end face of vessel port achievees the purpose that thin-walled pressure vessel mouth 0 seals.
Claims (3)
1. a kind of device that thin-walled pressure vessel mouth can be sealed, it is characterised in that：Including cover board, silicone rubber seal, screw rod, support
Plate, silicon rubber tapered plug, thick washer, nut；Cover board is fixedly connected with silicone rubber seal；Screw rod one end is fixedly connected with supporting plate,
The other end sequentially passes through silicone rubber member, cover board, silicon rubber tapered plug and thick washer and is fixed with nut.
2. the device according to claim 1 that thin-walled pressure vessel mouth can be sealed, it is characterised in that：The rubber seal
For bowl shaped structure, silicone rubber seal is fixed on by pressing plate and sunk screw in the cover board.
3. the device according to claim 1 or 2 that thin-walled pressure vessel mouth can be sealed, it is characterised in that：The nut is
Hex nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643249.XU CN207585844U (en) | 2017-11-30 | 2017-11-30 | A kind of device that thin-walled pressure vessel mouth can be sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643249.XU CN207585844U (en) | 2017-11-30 | 2017-11-30 | A kind of device that thin-walled pressure vessel mouth can be sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207585844U true CN207585844U (en) | 2018-07-06 |
Family
ID=62734576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721643249.XU Active CN207585844U (en) | 2017-11-30 | 2017-11-30 | A kind of device that thin-walled pressure vessel mouth can be sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207585844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374864A (en) * | 2021-06-30 | 2021-09-10 | 苏州富强科技有限公司 | Down-pressure type annular seal assembly |
-
2017
- 2017-11-30 CN CN201721643249.XU patent/CN207585844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374864A (en) * | 2021-06-30 | 2021-09-10 | 苏州富强科技有限公司 | Down-pressure type annular seal assembly |
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