CN209385648U - A kind of sealing structure - Google Patents
A kind of sealing structure Download PDFInfo
- Publication number
- CN209385648U CN209385648U CN201822111254.7U CN201822111254U CN209385648U CN 209385648 U CN209385648 U CN 209385648U CN 201822111254 U CN201822111254 U CN 201822111254U CN 209385648 U CN209385648 U CN 209385648U
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- CN
- China
- Prior art keywords
- upper cover
- platen
- thread spindle
- sealing ring
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of sealing structure, including sealing ring (2), upper cover (3), platen (6), tightening piece (5) and nut (7), wherein upper cover (3) lower surface has annulus outstanding, platen (6) is the disk with boss, the center point is provided with thread spindle, thread spindle processing is straight flat, the annulus inner cavity of upper cover (3) and the boss outer circle of platen (6) are fitted close, sealing ring (2) is mounted between the annulus end face of upper cover (3) and the disk of platen (6), tightening piece (5) holds out against the thread spindle being pierced by from upper cover (3), threaded shaft fits nut (7) and be pierced by.When the sealing structure of the utility model is by guaranteeing to turn screw thread, thread spindle keeps vertical up-or-down movement, without reversing, so that gradually tightening nut, when lifting thread spindle vertically upward, sealing ring is compressed, makes sealing ring that radial deformation occur, to generate sealed vol between part and sealing axis, sealing function is realized.
Description
Technical field
The utility model belongs to pump seal experimental technique field more particularly to a kind of sealing structure.
Background technique
Fuel system, oil system, the pump such as hydraulic system, for the leakproofness and intensity requirement for guaranteeing product, product is past
Being sealed property is just needed to test toward in part status, in the past when test, using axial seal, this sealing is due to sealing
The deflection of circle is bigger, just very laborious during installation, pulls out also highly difficult when unloading, and operating process is barbarous, often has
Cushion rubber is scratched, the hidden danger of product is scratched.
Utility model content
In view of the above situation of the prior art, facilitates installation the purpose of the utility model is to provide a kind of, guarantee cushion rubber not
It is cut through, the sealing structure being readily disassembled.
The above-mentioned purpose of the utility model is realized using following technical scheme:
A kind of sealing structure, including sealing ring, upper cover, platen, tightening piece and nut, wherein upper cover lower surface, which has, protrudes
Annulus, platen is the disk with boss, and the center point is provided with thread spindle, and thread spindle processing is straight flat.The annulus inner cavity of upper cover with
The boss outer circle of platen is fitted close, and sealing ring is installed between the annulus end face of upper cover and the disk of platen, and tightening piece is held out against
The thread spindle being pierced by from upper cover, so that thread spindle keeps vertical up-or-down movement when guaranteeing to turn screw thread, without turning round
Turn, nut and the threaded shaft fits being pierced by.
When installation, the disk of platen and the inner cavity clearance fit by obturator are fixed on sealing structure using screw
Nut on obturator, is gradually tightened, when thread spindle lifts vertically upward, compresses sealing ring, the contact for increasing sealing ring is wide
Degree makes sealing ring that radial deformation occur, and lateral cross-sectional dimension becomes larger, makes to generate sealed vol between part and sealing structure, thus
Realize sealing function.
When the sealing structure of the utility model is by guaranteeing to turn screw thread, thread spindle keeps vertical up-or-down movement, and
It does not twist, so that when lifting thread spindle vertically upward, compressing sealing ring gradually tightening nut, increasing connecing for sealing ring
Width is touched, makes sealing ring that radial deformation occur, makes to generate sealed vol between part and sealing axis, to realize sealing function.
Detailed description of the invention
Fig. 1 is the schematic diagram of the sealing structure for seal tightness test of the utility model.
Fig. 2 is the deformation schematic diagram of sealing ring.
Specific embodiment
In order to be more clearly understood that the purpose of this utility model, technical solution and advantage, with reference to the accompanying drawings and embodiments,
The present invention will be further described in detail.
Fig. 1 is the schematic diagram of the sealing structure for seal tightness test of the utility model.As shown in Figure 1, this is practical new
The sealing structure of type, including sealing ring 2 (in the present embodiment, using cushion rubber), upper cover 3, platen 6, tightening piece 5 and nut 7, on
3 lower surface of lid has annulus outstanding, and platen 6 is the disk with boss, and the center point is provided with thread spindle, and thread spindle processing is straight
It is flat.The annulus inner cavity of upper cover 3 and the boss outer circle of platen 6 are fitted close, and sealing ring 2 is installed to annulus end face and the pressure of upper cover 3
Between the disk of disk 6, the thread spindle being pierced by from upper cover 3 is held out against using tightening piece 5 (in the present embodiment, using holding screw),
When guarantee turns screw thread, thread spindle keeps vertical up-or-down movement, without reversing.Nut 7 is screwed in the thread spindle being pierced by
On.
When installation, the disk of platen 6 and the inner cavity clearance fit (H8/f9) by obturator 1, using screw 4 sealing
Structure is fixed on and on obturator, is gradually tightened nut 7, when thread spindle 6 lifts vertically upward, compresses sealing ring, makes to seal
Radial deformation occurs for circle, and longitudinal cross-section size a becomes smaller, and lateral cross-sectional dimension b increases, and makes to generate pressure between part and sealing structure
Contracting amount, to realize sealing function, as shown in Figure 2.
Claims (3)
1. a kind of sealing structure, it is characterised in that including sealing ring (2), upper cover (3), platen (6), tightening piece (5) and nut
(7), wherein upper cover (3) lower surface has annulus outstanding, and platen (6) is the disk with boss, and the center point is provided with thread spindle,
Thread spindle processing is straight flat, and the annulus inner cavity of upper cover (3) and the boss outer circle of platen (6) are fitted close, and sealing ring (2) is mounted on
It covers between the annulus end face of (3) and the disk of platen (6), tightening piece (5) holds out against the thread spindle being pierced by from upper cover (3), nut (7)
With the threaded shaft fits being pierced by.
2. sealing structure described in accordance with the claim 1, wherein tightening piece (5) is holding screw.
3. sealing structure described in accordance with the claim 1, wherein sealing ring (2) is cushion rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111254.7U CN209385648U (en) | 2018-12-14 | 2018-12-14 | A kind of sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111254.7U CN209385648U (en) | 2018-12-14 | 2018-12-14 | A kind of sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385648U true CN209385648U (en) | 2019-09-13 |
Family
ID=67872098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822111254.7U Active CN209385648U (en) | 2018-12-14 | 2018-12-14 | A kind of sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385648U (en) |
-
2018
- 2018-12-14 CN CN201822111254.7U patent/CN209385648U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |