CN105202185B - A kind of self-tightening type barrel body end cover sealing connection structure - Google Patents
A kind of self-tightening type barrel body end cover sealing connection structure Download PDFInfo
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- CN105202185B CN105202185B CN201510603838.4A CN201510603838A CN105202185B CN 105202185 B CN105202185 B CN 105202185B CN 201510603838 A CN201510603838 A CN 201510603838A CN 105202185 B CN105202185 B CN 105202185B
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- cylinder
- bearing ring
- trim
- self
- barrel body
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Abstract
The invention discloses a kind of self-tightening type barrel body end cover sealing connection structures, including bearing ring and sealing ring；Dismountable coupling structure is used between the bearing ring and cylinder；The edge of the end cap along cylinder it is axially extending go out a short cylinder, the open end of short cylinder extends radially outward out an annulus；In the short cylinder and annulus insertion tube body；The inside of the bearing ring is equipped with the second limited step, and position corresponding with the second limited step is equipped with limited shoulder on the outside of end cap；The sealing ring is located in the space surrounded by the end face of cylinder inboard wall, the end face of bearing ring, the outer wall of short cylinder and annulus.The present invention compresses sealing ring using normal pressure in cylinder, play self-tightening, self sealss effect, do not need or will not be leaked when it is ensured that coupling structure bearing normal pressure in cylinder with little need for pretightning force.
Description
Technical field
The present invention relates to a kind of self-tightening type barrel body end cover sealing connection structures.
Background technology
Application No. is the Chinese patent literatures of CN201010112627.8 to disclose one kind《Self-tightening seal type casing end joins
Binding structure》Comprising end cap, shell, fixing piece and sealing ring, fixing piece are fixedly connected in shell end, which is provided with pressure-bearing
Circle；The periphery of end cap shell it is axially extending go out a short cylinder, an annulus is radially being extended in the open end of short cylinder, short
Cylinder and annulus are inserted into shell；Sealing ring is arranged between bearing ring and annulus；In use, enclosure interior has pressure, make
It is all acted on sealing ring by annulus with the resultant force of the pressure on the inside of end cap, then bearing ring is acted on by sealing ring
On, pressure is bigger, and sealing ring compressive deformation is also bigger, thus sealing effect is better, with little need for pretightning force it is ensured that
Coupling structure realizes sealed attachment when bearing internal pressure, so the structure dismounts very easily under without interior pressure condition, this is this
Remarkable advantage possessed by structure.But act on end cap the conjunctions of whole pressure since the sealing ring in the structure is born
Power, the deformation extent or stress size of sealing ring become the function for acting on the resultant force of whole pressure on end cap, so such as shell
Internal pressure is excessive, is bound to cause sealing ring excessive deformation or be excessively stressed, leads to sealing ring crack damage or premature aging
(following the string) so that the sealing structure premature failure (leaking), this is insufficient existing for the sealing structure.
Invention content
The object of the present invention is to provide a kind of self-tightening type barrel body end cover sealing connection structure with long service life, do not need or
It will not be leaked when it is ensured that coupling structure bearing normal pressure in cylinder with little need for pretightning force.
Realizing the technical solution of the object of the invention is：A kind of self-tightening type barrel body end cover sealing connection structure, including bearing ring
And sealing ring；Dismountable coupling structure is used between the bearing ring and cylinder；Axial direction of the edge of the end cap along cylinder
Extend a short cylinder, the open end of short cylinder extends radially outward out an annulus；The short cylinder and annulus are inserted into cylinder
It is interior；The inside of the bearing ring is equipped with the second limited step, and position corresponding with the second limited step is equipped with limit on the outside of end cap
Shoulder；The sealing ring is located at the space surrounded by the end face of cylinder inboard wall, the end face of bearing ring, the outer wall of short cylinder and annulus
It is interior.
The external screw thread and internal thread to complement one another is respectively equipped on the inside of the outside of the bearing ring and the open end of cylinder,
Or bearing ring and cylinder are coupled by nuts and bolt.
The inner wall of the cylinder is equipped with the first limited step；The annulus of the end cap is limited by the first limited step.
The sealing ring is the clearance ruler that radial cross sectional dimensions is more than between the inner wall and the outer wall of short cylinder of cylinder
Very little sealing ring.Sealing ring can be that O-ring seals can also be for rectangular seal.
The first preferred technical solution：Further include trim and screw；The screw is screwed into across end cap from the inside to the outside
In trim, trim is made to be fixedly connected with end cap；It is generated on end cap when being screwed by screw between the screw and end cap
Plastic deformation both make to realize that sealing is fixedly connected；It can also be close by installing gasket realization additional between the screw and end cap
Envelope connection.
Further technical solution：Being respectively equipped on the outer end of the bearing ring and the inner face of trim can be mutual
Be respectively equipped on the convex ribs and slot of grafting or the inner face of the outer end of bearing ring and trim can be mutually inserted insert
Being respectively equipped on the outside of the outer end of slot and convex ribs or bearing ring and on the inside of trim being capable of intermeshing external tooth and internal tooth.
Second of preferred technical solution：The outside of the end cap is equipped with multiple elastic card claws, and the inside of bearing ring is equipped with
The anticreep step being engaged by clamping with elastic card claw.
Further technical solution：It further include trim；The trim is fixedly connected with bearing ring or bearing ring
Be respectively equipped on the inner face of outer end and trim the convex ribs that can be mutually inserted and the outer end of slot or bearing ring and
Outer end outside and the trim of the slot that can be mutually inserted and convex ribs or bearing ring are respectively equipped on the inner face of trim
Be respectively equipped with being capable of intermeshing external tooth and internal tooth for inside.
The further technical solution of two kinds of preferred technical solutions：The trim is equipped with handle.
Above-mentioned technical proposal is used, the present invention has advantageous effect below：(1) present invention utilizes normal pressure in cylinder
Compress sealing ring, play self-tightening, self sealss effect, do not need or with little need for pretightning force it is ensured that coupling structure is born
It will not be leaked when normal pressure in cylinder.
(2) the second limited step of bearing ring of the invention and the limited shoulder of end cap in structure to the deformation of sealing ring
Degree is limited, in a certain range by the stress extent control of sealing ring, i.e.,：Within the scope of certain pressure, sealing ring
Stress degree increases with the increase of interior pressure, is more than after certain pressure, the stress degree of sealing ring is not with the increase of interior pressure
And increase.This structure can prevent sealing ring excessive deformation or be excessively stressed, and prevent sealing ring stress excessive and damage, and improve
The stress of sealing ring, thus the applying working condition of sealing ring is improved, service life is guaranteed, close to improve
The sealing reliability of seal structure extends the service life of sealing structure.
(3) annulus of end cap of the invention is limited by the first limited step, can prevent end cap from entering too deep in cylinder.
(4) trim of the invention is equipped with handle, is convenient for rotating dress decorative cover.
Description of the drawings
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail, wherein
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Enlarged drawing at A when Fig. 2 is no pressure in the cylinder of the present invention in Fig. 1.
Enlarged drawing at A when Fig. 3 has pressure in the cylinder for the present invention in Fig. 1.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 5 is the structural schematic diagram of the trim of the embodiment of the present invention 2.
Fig. 6 is the upward view of Fig. 5.
Fig. 7 is the structural schematic diagram of the bearing ring of the embodiment of the present invention 2.
Fig. 8 is the vertical view of Fig. 7.
Fig. 9 is the structural schematic diagram of the embodiment of the present invention 3.
Figure 10 is the structural schematic diagram of the end cap of the embodiment of the present invention 3.
Figure 11 is the vertical view of Figure 10.
Figure 12 is the structural schematic diagram of the bearing ring of the embodiment of the present invention 3.
Figure 13 is the structural schematic diagram of the embodiment of the present invention 4.
In attached drawing marked as：
Cylinder 1, the first limited step 11, end cap 2, short cylinder 21, annulus 22, limited shoulder 23, elastic card claw 24, bearing ring
3, the second limited step 31, anticreep step 32, convex ribs 33, sealing ring 4, trim 5, handle 51, slot 52, screw 6, nut 7,
Bolt 8.
Specific implementation mode
(embodiment 1)
See Fig. 1 to Fig. 3, the self-tightening type barrel body end cover sealing connection structure of the present embodiment, including bearing ring 3 and sealing ring 4.
Dismountable coupling structure is used between bearing ring 3 and cylinder 1, such as the open end in the outside and cylinder 1 of bearing ring 3
Inside be respectively equipped with the external screw thread and internal thread to complement one another.The edge of end cap 2 along cylinder 1 it is axially extending go out a short cylinder
21, the open end of short cylinder 21 extends radially outward out an annulus 22.Short cylinder 21 and annulus 22 are inserted into cylinder 1.Cylinder 1
Inner wall be equipped with the first limited step 11, the annulus 22 of end cap 2 limited by the first limited step 11.The inside of bearing ring 3
Equipped with the second limited step 31,2 outside of end cap position corresponding with the second limited step 31 is equipped with limited shoulder 23.Sealing ring 4
In in the space that the end face by cylinder inboard wall, the end face of bearing ring 3, the outer wall of short cylinder 21 and annulus 22 is surrounded.Sealing ring 4
It is more than the sealing ring of the gap size between the inner wall and the outer wall of short cylinder 21 of cylinder 1 for radial cross sectional dimensions.Sealing
It can also be for rectangular seal that circle 4, which can be O-ring seals,.
It, will be all through circle when the resultant force for acting on the pressure on end cap 2 is smaller when bearing normal pressure inside cylinder 1
Sealed circle 4 passes on bearing ring 3 ring 22 again；It is classified into two parts when the resultant force for acting on the pressure on end cap 2 is larger, one
Part will sealed circle 4 passes on bearing ring 3 again through annulus 22, and another part is passed to through limited shoulder 23 and the second limited step 31
On bearing ring 3.Sealing ring 4 can be made to avoid excessive deformation or be excessively stressed and damage in this way.
(embodiment 2)
See Fig. 4 to Fig. 8, the present embodiment is substantially the same manner as Example 1, the difference is that：Further include trim 5 and screw
6。
Trim 5 is equipped with handle 51.Screw 6 is screwed into across end cap 2 in trim 5 from the inside to the outside, makes trim 5 and end
Lid 2 is fixedly connected.The plastic deformation generated on end cap 5 when being screwed by screw 6 between screw 6 and end cap 2 makes the two realize
Sealing is fixedly connected.
The convex ribs 33 and slot that can be mutually inserted are respectively equipped on the outer end of bearing ring 3 and the inner face of trim 5
52, enable to drive bearing ring 3 to link therewith when rotating dress decorative cover 5.Screw 6, trim 5, bearing ring 3, end cap 2 and sealing ring
It forms and is covered with after 4 assembly, trim 5 rotates in one direction to screw in cylinder 1 by the coverage, and rotation can to another way
The coverage to be split out out of cylinder 1.
Certainly, the linkage structure between bearing ring 3 and trim 5 can also be outer end and the trim 5 of bearing ring 3
The inside with trim 5 on the outside of the outer end of the slot that can be mutually inserted and convex ribs or bearing ring 3 is respectively equipped on inner face
Being respectively equipped with being capable of intermeshing external tooth and internal tooth.
When bearing normal pressure inside cylinder 1, when the resultant force for acting on the pressure on end cap 2 is smaller, will all it pass to
On annulus 22, then sealed circle 4 passes on bearing ring 3；It is classified into two when the resultant force for acting on the pressure on end cap 2 is larger
Point, through annulus 22, sealed circle 4 passes on bearing ring 3 part again, and another part passes through limited shoulder 23 and the second limited step
31 pass on bearing ring 3.During normal pressure is gradually increased in cylinder 1, between 3 outer end face of trim 5 and bearing ring
Gap can gradually increase, sealing ring 4 axial shortening how much, which just will increase how many, can directly find out in appearance,
I.e.：If the gap is also zero when pressure is zero in cylinder 1, when the gap is more than zero, interior pressure also greater than zero, get over by gap
It is big just to illustrate that interior pressure is also bigger.After gap reaches a certain level, due to there is the work of the second limited step 31 and limited shoulder 23
With even if pressure further increases in cylinder 1, which will not increase therewith, so sealing ring 4 will not be by bigger
Pressure.
(embodiment 3)
See Fig. 9 to Figure 12, the present embodiment is substantially the same manner as Example 1, the difference is that：It further include trim 5.
Trim 5 is equipped with handle 51.The outside of end cap 2 is equipped with multiple elastic card claws 24, the inside of bearing ring 3 be equipped with
The anticreep step 32 that elastic card claw 24 is engaged by clamping.Elastic card claw 24 is stuck on the anticreep step 32 on bearing ring 3, makes bearing ring
3 and end cap 2 realization be relatively fixed, i.e., relative displacement can be generated between bearing ring 3 and end cap 2 in smaller range.
Trim 5 is fixedly connected with bearing ring 3, enables to drive bearing ring 3 to link therewith when rotating dress decorative cover 5.Decoration
Lid 5, bearing ring 3, end cap 2 and sealing ring 4 are formed after assembling and are covered with, and trim 5 rotates can revolve the coverage in one direction
Enter cylinder 1, rotation to another way can split out the coverage out of cylinder 1.
Certainly, the linkage structure between bearing ring 3 and trim 5 can also be outer end and the trim 5 of bearing ring 3
The inner face of the outer end and trim 5 of the convex ribs that can be mutually inserted and slot or bearing ring 3 is respectively equipped on inner face
On be respectively equipped on the outside of the outer end of the slot that can be mutually inserted and convex ribs or bearing ring 3 and the inside of trim 5 is set respectively
Having being capable of intermeshing external tooth and internal tooth.
When bearing normal pressure inside cylinder 1, when the resultant force for acting on the pressure on end cap 2 is smaller, will all it pass to
On annulus 22, then sealed circle 4 passes on bearing ring 3；It is classified into two when the resultant force for acting on the pressure on end cap 2 is larger
Point, through annulus 22, sealed circle 4 passes on bearing ring 3 part again, and another part passes through limited shoulder 23 and the second limited step
31 pass on bearing ring 3.During normal pressure is gradually increased in cylinder 1, elastic card claw 24 and anticreep step 32 will be urgent
Contiguity is touched to trend movement is gradually disengaged, and sealing ring 4 is being compressed axially how many, between elastic card claw 24 and anticreep step 32 between
Gap just will increase how many, due to there is the masking of trim 5, not interfere with appearance.After gap reaches a certain level, due to having
The effect of two limited steps 31 and limited shoulder 23, even if pressure further increases in cylinder 1, which will not increase therewith,
So sealing ring 4 will not be by the pressure of bigger.
(embodiment 4)
See Figure 13, the present embodiment is substantially the same manner as Example 1, the difference is that：Further include nut 7 and bolt 8.Pressure-bearing
Ring 3 and cylinder 1 are coupled by nut 7 and bolt 8.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (8)
1. a kind of self-tightening type barrel body end cover sealing connection structure, it is characterised in that：Including bearing ring (3) and sealing ring (4)；It is described
Dismountable coupling structure is used between bearing ring (3) and cylinder (1)；Prolong along the axial direction of cylinder (1) at the edge of the end cap (2)
A short cylinder (21) is stretched out, the open end of short cylinder (21) extends radially outward out an annulus (22)；The short cylinder (21)
It is inserted into cylinder (1) with annulus (22)；The inside of the bearing ring (3) is equipped with the second limited step (31), on the outside of end cap (2) with
The corresponding position of second limited step (31) is equipped with limited shoulder (23)；The sealing ring (4) is located at by cylinder inboard wall, bearing ring
(3) in the space that the outer wall of end face, short cylinder (21) and the end face of annulus (22) is surrounded；The outside of the bearing ring (3)
It is respectively equipped with the external screw thread and internal thread to complement one another on the inside of the open end of cylinder (1)；The outside of the end cap (2) is equipped with
Multiple elastic card claws (24), the inside of bearing ring (3) are equipped with the anticreep step (32) being engaged by clamping with elastic card claw (24)；It is described
The inner wall of cylinder (1) is equipped with the first limited step (11)；The annulus (22) of the end cap (2) passes through the first limited step (11)
Limit.
2. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 1, it is characterised in that：The sealing ring
(4) it is more than the sealing of the gap size between the inner wall and the outer wall of short cylinder (21) of cylinder (1) for radial cross sectional dimensions
Circle.
3. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 1, it is characterised in that：It further include decoration
Cover (5) and screw (6)；The screw (6) is screwed into across end cap (2) in trim (5) from the inside to the outside, makes trim (5) and end
Lid (2) is fixedly connected.
4. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 3, it is characterised in that：The bearing ring
(3) convex ribs that can be mutually inserted and slot or bearing ring are respectively equipped on the inner face of outer end and trim (5)
(3) slot that can be mutually inserted and convex ribs or bearing ring are respectively equipped on the inner face of outer end and trim (5)
(3) being respectively equipped on the outside of outer end and on the inside of trim (5) being capable of intermeshing external tooth and internal tooth.
5. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 1, it is characterised in that：It further include decoration
It covers (5)；The trim (5) is fixedly connected with bearing ring (3).
6. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 1, it is characterised in that：The bearing ring
(3) convex ribs that can be mutually inserted and slot or bearing ring are respectively equipped on the inner face of outer end and trim (5)
(3) slot that can be mutually inserted and convex ribs or bearing ring are respectively equipped on the inner face of outer end and trim (5)
(3) being respectively equipped on the outside of outer end and on the inside of trim (5) being capable of intermeshing external tooth and internal tooth.
7. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 3 or 5, it is characterised in that：The dress
Decorative cover (5) is equipped with handle (51).
8. a kind of self-tightening type barrel body end cover sealing connection structure according to claim 1, it is characterised in that：It further include nut
(7) and bolt (8)；The bearing ring (3) and cylinder (1) are coupled by nut (7) and bolt (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603838.4A CN105202185B (en) | 2015-09-21 | 2015-09-21 | A kind of self-tightening type barrel body end cover sealing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510603838.4A CN105202185B (en) | 2015-09-21 | 2015-09-21 | A kind of self-tightening type barrel body end cover sealing connection structure |
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| CN105202185A CN105202185A (en) | 2015-12-30 |
| CN105202185B true CN105202185B (en) | 2018-08-24 |
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ID=54950029
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510603838.4A Active CN105202185B (en) | 2015-09-21 | 2015-09-21 | A kind of self-tightening type barrel body end cover sealing connection structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402385B (en) * | 2016-10-18 | 2018-05-18 | 北京特种机械研究所 | For annular emission cylinder without flange pressure bearing and seal connection structure |
| CN110211461B (en) * | 2019-05-15 | 2021-04-13 | 浙江商业职业技术学院 | Transparent pressure-temperature relation tester |
| CN113624443A (en) * | 2021-07-21 | 2021-11-09 | 西北工业大学 | Launching tube opening sealing device for underwater launching and mounting method |
| CN113606337A (en) * | 2021-07-30 | 2021-11-05 | 上海汉虹精密机械有限公司 | High vacuum sealing structure for inner circle of quartz cylinder |
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| CN102133494A (en) * | 2010-01-25 | 2011-07-27 | 黄樟焱 | Self-tightening sealed shell end part linking structure |
| CN202129029U (en) * | 2011-06-20 | 2012-02-01 | 江苏正本净化节水科技实业有限公司 | External pressure type hollow fiber filter device |
| CN202666065U (en) * | 2012-03-08 | 2013-01-16 | 广州康盛生物科技有限公司 | Disposable hematoidin blood plasma absorption column |
| CN104226011A (en) * | 2014-07-30 | 2014-12-24 | 江苏正本净化节水科技实业有限公司 | Connecting structure |
| CN205118233U (en) * | 2015-09-21 | 2016-03-30 | 江苏沁尔康环境电器有限公司 | From compact form barrel end cap seal draw bail |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4083898B2 (en) * | 1998-11-20 | 2008-04-30 | オルガノ株式会社 | Cartridge filter housing |
| WO2010080394A2 (en) * | 2008-12-18 | 2010-07-15 | Honeywell International Inc. | Sealing grommet for fluid filters |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133494A (en) * | 2010-01-25 | 2011-07-27 | 黄樟焱 | Self-tightening sealed shell end part linking structure |
| CN202129029U (en) * | 2011-06-20 | 2012-02-01 | 江苏正本净化节水科技实业有限公司 | External pressure type hollow fiber filter device |
| CN202666065U (en) * | 2012-03-08 | 2013-01-16 | 广州康盛生物科技有限公司 | Disposable hematoidin blood plasma absorption column |
| CN104226011A (en) * | 2014-07-30 | 2014-12-24 | 江苏正本净化节水科技实业有限公司 | Connecting structure |
| CN205118233U (en) * | 2015-09-21 | 2016-03-30 | 江苏沁尔康环境电器有限公司 | From compact form barrel end cap seal draw bail |
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