CN103032150B - Water seal bushing - Google Patents
Water seal bushing Download PDFInfo
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- CN103032150B CN103032150B CN201210583323.9A CN201210583323A CN103032150B CN 103032150 B CN103032150 B CN 103032150B CN 201210583323 A CN201210583323 A CN 201210583323A CN 103032150 B CN103032150 B CN 103032150B
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- sleeve
- water seal
- sleeve pipe
- gum
- shape circle
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Abstract
The invention discloses a water seal bushing, which comprises a rubber sleeve (1) and a metal bushing (2) nested in the rubber sleeve (1); at least one end of the rubber sleeve (1) is provided with an O-shaped ring (3) which is coaxial with the rubber sleeve (1), and the inner diameter of the O-shaped ring (3) is less than the inner diameter of the rubber sleeve (1). When being mounted in a water seal bushing-mounting hole of an engine body, the water seal bushing provided by the invention receives axial squeezing force, and thereby at least one of a cylinder head and the engine body is sealed by the O-shaped ring; since the inner diameter of the O-shaped ring is less than the inner diameter of the rubber sleeve, the inner diameter of the O-shaped ring is squeezed into the rubber sleeve, and as a result, the middle part of the metal bushing is outwardly bulged as well; the middle part of the metal bushing outwardly squeezes the rubber sleeve, so that the middle part of the rubber sleeve is in tight contact with the wall of the water seal bushing-mounting hole, consequently, the sealing effect of the water seal bushing is enhanced, and the degree of water leakage at the position of the water seal bushing is effectively decreased.
Description
Technical field
The present invention relates to technical field of sealing technology, particularly relate to a kind of water seal sleeve pipe.
Background technique
In the using process of diesel engine, often there is water seal sleeve position seepy question.
At present, conventional water seal sleeve pipe is copper water seal sleeve pipe, copper hydraulic gland pipe has copper pipe and O shape circle is inlayed in outside, water seal sleeve pipe is placed in the water seal sleeve pipe mounting hole on body, and the distortion of being enclosed by O shape is made the hole wall of its water seal sleeve pipe mounting hole fit and realizes the sealing in water route.
But, along with the development of highly-intensified diesel engine, water route boost in pressure, the usage requirement that copper water seal sleeve pipe cannot meet, makes the hydraulic gland seal of tube bad; Even if in the diesel engine that water route pressure is lower, cylinder head when assembling once occur water seal sleeve pipe pressure partially, the dimension deviation of water seal sleeve pipe and water seal sleeve pipe mounting hole is excessive, capital causes cylinder head and body mating face to leak, and, it is very inconvenient that water seal sleeve pipe is changed in this position, need again to remove the component such as cylinder cap, waste time and energy.
Therefore, how to improve the sealing effect of water seal sleeve pipe, reduce water seal sleeve position water leakage degree, become those skilled in the art's important technological problems to be solved.
Summary of the invention
The object of this invention is to provide a kind of water seal sleeve pipe, improve the sealing effect of water seal sleeve pipe, effectively reduce water seal sleeve position water leakage degree.
Water seal sleeve pipe provided by the invention, comprises gum sleeve and is sheathed on the metal sleeve in described gum sleeve; At least one end of described gum sleeve is provided with the O shape circle coaxially arranged with it, and the internal diameter of described O shape circle is less than the internal diameter of described gum sleeve.
Preferably, the two ends of described gum sleeve are provided with described O shape circle.
Preferably, the external diameter of described O shape circle is identical with the outside dimension of described gum sleeve.
Preferably, the outer wall of described metal sleeve is evenly provided with along its axial arranged groove, the inwall of described gum sleeve is provided with the projection with described groove male-female engagement.
Preferably, the quantity of described groove is 12; 12 described grooves are uniformly distributed along the circumference of described metal sleeve.
Preferably, described groove is curve bath.
Preferably, the internal diameter of described O shape circle is greater than the internal diameter of described metal sleeve; The internal diameter of described gum sleeve is equal to or slightly less than the external diameter of described metal sleeve.
Preferably, described metal sleeve is stainless steel sleeve pipe.
Preferably, described gum sleeve is nitrile butadiene rubber sleeve pipe.
Preferably, described O shape circle is integral type structure with described gum sleeve.
Water seal sleeve pipe provided by the invention, metal sleeve is sheathed on gum sleeve, water seal sleeve pipe being installed in the water seal sleeve pipe mounting hole of body, by cylinder head being covered in the end of water seal sleeve pipe mounting hole, make water seal sleeve pipe be subject to axial compression power, O shape circle seals with at least one in cylinder head and body; Internal diameter due to O shape circle is less than the internal diameter of gum sleeve, the internal diameter extruding that O shape is enclosed enters in gum sleeve, and then drive the intermediate portion outwardly convex of gum sleeve, owing to being arranged with metal sleeve in gum sleeve, make the same outwardly convex of the intermediate portion of metal sleeve; The intermediate portion of metal sleeve outwards extrudes gum sleeve, the hole wall of the intermediate portion of gum sleeve 1 and water seal sleeve pipe mounting hole is fitted, further increase the sealing effect of water seal sleeve pipe in water seal sleeve pipe mounting hole, effectively reduce the water leakage degree of water seal sleeve position.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the gum sleeve of water seal sleeve pipe in the specific embodiment of the invention and the structural representation of O shape circle;
Fig. 2 is the schematic front view of the metal sleeve of water seal sleeve pipe in the specific embodiment of the invention;
Fig. 3 is the schematic top plan view of the metal sleeve of water seal sleeve pipe in the specific embodiment of the invention.
Embodiment
The object of this invention is to provide a kind of water seal sleeve pipe, improve the sealing effect of water seal sleeve pipe, effectively reduce water seal sleeve position water leakage degree.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the gum sleeve of water seal sleeve pipe in the specific embodiment of the invention and the structural representation of O shape circle; Fig. 2 is the schematic front view of the metal sleeve of water seal sleeve pipe in the specific embodiment of the invention; Fig. 3 is the schematic top plan view of the metal sleeve of water seal sleeve pipe in the specific embodiment of the invention.
Embodiments provide a kind of water seal sleeve pipe, comprise gum sleeve 1 and be sheathed on the metal sleeve 2 in gum sleeve 1; The internal diameter that at least one end of gum sleeve 1 is provided with O shape circle 3, the O shape circle 3 coaxially arranged with it is less than the internal diameter of gum sleeve 1.
The water seal sleeve pipe that the embodiment of the present invention provides, metal sleeve 2 is sheathed on gum sleeve 1, water seal sleeve pipe being installed in the water seal sleeve pipe mounting hole of body, by cylinder head being covered in the end of water seal sleeve pipe mounting hole, make water seal sleeve pipe be subject to axial compression power, O shape circle 3 seals with at least one in cylinder head and body; Internal diameter due to O shape circle 3 is less than the internal diameter of gum sleeve 1, the internal diameter extruding making O shape enclose 3 enters in gum sleeve 1, and then drive the intermediate portion outwardly convex of gum sleeve 1, owing to being arranged with metal sleeve 2 in gum sleeve 1, make the same outwardly convex of the intermediate portion of metal sleeve 2; The intermediate portion of metal sleeve 2 outwards extrudes gum sleeve 1, the hole wall of the intermediate portion of gum sleeve 1 and water seal sleeve pipe mounting hole is fitted, further increase the sealing effect of water seal sleeve pipe in water seal sleeve pipe mounting hole, effectively reduce the water leakage degree of water seal sleeve position.
Preferably, the two ends of gum sleeve 1 are provided with O shape circle 3.Namely the quantity of O shape circle 3 is two, and one of them O shape circle 3 is arranged at one end of gum sleeve 1, and another O shape circle 3 is arranged at the other end of gum sleeve.Metal sleeve 2 is sheathed in gum sleeve 1, and O shape circle 3 is all set at the two ends of gum sleeve 1, effectively prevent metal sleeve 2 by slippage in gum sleeve 1, simultaneously, avoid metal sleeve 2 directly to contact with body with cylinder head, effectively improve metal sleeve 2, electro erosion between cylinder head and body.
In such scheme, in order to avoid metal sleeve 2 moving axially relative to gum sleeve 1, preferably the height of gum sleeve 1 is set to the size identical with the height of metal sleeve 2, namely two O shapes distance of enclosing between 3 faces close to each other equals the height of metal sleeve 2, effectively prevent metal sleeve 2 moving axially relative to gum sleeve 1.
The water seal sleeve pipe provided for the ease of the embodiment of the present invention is installed relative to water seal sleeve pipe mounting hole, the external diameter of its gum sleeve 1 is less than the internal diameter of water seal sleeve pipe mounting hole, so that water seal sleeve pipe is by intermediate portion outwardly convex after axial compression power, further, the external diameter of O shape circle 3 is identical with the outside dimension of gum sleeve 1.
Because metal sleeve 2 is sheathed in gum sleeve 1, relatively fixing for the ease of both, the outer wall of metal sleeve 2 is evenly provided with along its axial arranged groove 21, the inwall of gum sleeve 1 is provided with the projection 11 with groove 21 male-female engagement.By the male-female engagement of projection 11 with groove 21, effectively prevent metal sleeve 2 and move with the circumference of gum sleeve 1, make both relatively fixing.
In order to improve metal sleeve 2 and the stability maintenance of gum sleeve 1, preferably the quantity of groove 21 is set to 12; 12 grooves 21 are uniformly distributed along the circumference of metal sleeve 2.Also the quantity of groove 21 can be set to other quantity such as 4,8 or 16, introduce no longer one by one at this.
Preferably, groove 21 is curve bath.
In the water seal sleeve pipe that the embodiment of the present invention provides, the internal diameter of O shape circle 3 is greater than the internal diameter of metal sleeve 2; The internal diameter of gum sleeve 1 is equal to or slightly less than the external diameter of metal sleeve 2.Internal diameter due to O shape circle 3 is greater than the internal diameter of metal sleeve 2, ensure that the unimpeded of metal sleeve 2 water flow inside, avoids the obstruction by O shape circle 3.And the internal diameter of gum sleeve 1 is equal to or slightly less than the external diameter of metal sleeve 2, ensure that the inwall of gum sleeve 1 and the outer wall of metal sleeve 2 are fitted.
Further, metal sleeve 2 is stainless steel sleeve pipe.Also can select other metallic material, not do concrete restriction at this.
Because the oil resistant of nitrile butadiene rubber, heat-resisting and ageing resistance are better, preferably gum sleeve 1 is set to nitrile butadiene rubber sleeve pipe.
For the ease of processing, O shape circle 3 is integral type structure with gum sleeve 1.Namely O shape circle 3 is rubber o-ring, and is processed by molding and forming with gum sleeve 1.
Above water seal sleeve pipe provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. a water seal sleeve pipe, is characterized in that, comprises gum sleeve (1) and is sheathed on the metal sleeve (2) in described gum sleeve (1); At least one end of described gum sleeve (1) is provided with O shape circle (3) coaxially arranged with it, and the internal diameter of described O shape circle (3) is less than the internal diameter of described gum sleeve (1); The outer wall of described metal sleeve (2) is evenly provided with along its axial arranged groove (21), the inwall of described gum sleeve (1) is provided with the projection (11) with described groove (21) male-female engagement.
2. water seal sleeve pipe as claimed in claim 1, is characterized in that, the two ends of described gum sleeve (1) are provided with described O shape circle (3).
3. water seal sleeve pipe as claimed in claim 1, is characterized in that, the external diameter of described O shape circle (3) is identical with the outside dimension of described gum sleeve (1).
4. water seal sleeve pipe as claimed in claim 1, it is characterized in that, the quantity of described groove (21) is 12; 12 described grooves (21) are uniformly distributed along the circumference of described metal sleeve (2).
5. water seal sleeve pipe as claimed in claim 1, it is characterized in that, described groove (21) is curve bath.
6. water seal sleeve pipe as claimed in claim 1, is characterized in that, the internal diameter of described O shape circle (3) is greater than the internal diameter of described metal sleeve (2); The internal diameter of described gum sleeve (1) is equal to or slightly less than the external diameter of described metal sleeve (2).
7. water seal sleeve pipe as claimed in claim 1, it is characterized in that, described metal sleeve (2) is stainless steel sleeve pipe.
8. water seal sleeve pipe as claimed in claim 1, it is characterized in that, described gum sleeve (1) is nitrile butadiene rubber sleeve pipe.
9. the water seal sleeve pipe as described in any one of claim 1-8, is characterized in that, described O shape circle (3) is integral type structure with described gum sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583323.9A CN103032150B (en) | 2012-12-28 | 2012-12-28 | Water seal bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583323.9A CN103032150B (en) | 2012-12-28 | 2012-12-28 | Water seal bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103032150A CN103032150A (en) | 2013-04-10 |
| CN103032150B true CN103032150B (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210583323.9A Active CN103032150B (en) | 2012-12-28 | 2012-12-28 | Water seal bushing |
Country Status (1)
| Country | Link |
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| CN (1) | CN103032150B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867328A (en) * | 2014-02-28 | 2014-06-18 | 南车玉柴四川发动机股份有限公司 | Cylinder sleeve for medium speed diesel engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201226U (en) * | 1987-04-08 | 1988-01-13 | 上海市工业技术发展基金会 | Rigid-hooped and rubber oil seal for rotary axles |
| US5472216A (en) * | 1994-09-30 | 1995-12-05 | Parker-Hannifin Corporation | Seal ring for valve stem |
| GB2415233A (en) * | 2003-10-20 | 2005-12-21 | Nat Coupling Co Inc | Undersea hydraulic coupling with interference fit metal seals |
| CN203098030U (en) * | 2012-12-28 | 2013-07-31 | 淄博柴油机总公司 | Water sealing sleeve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070024007A1 (en) * | 2005-07-28 | 2007-02-01 | Putch Samuel W | Seal ring and method |
| US7621568B2 (en) * | 2006-04-25 | 2009-11-24 | Visteon Global Technologies, Inc. | Block fitting and seal structure |
| TW201239222A (en) * | 2010-12-06 | 2012-10-01 | Microflex Technologies Llc | Ring seal retainer assembly and methods |
-
2012
- 2012-12-28 CN CN201210583323.9A patent/CN103032150B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201226U (en) * | 1987-04-08 | 1988-01-13 | 上海市工业技术发展基金会 | Rigid-hooped and rubber oil seal for rotary axles |
| US5472216A (en) * | 1994-09-30 | 1995-12-05 | Parker-Hannifin Corporation | Seal ring for valve stem |
| GB2415233A (en) * | 2003-10-20 | 2005-12-21 | Nat Coupling Co Inc | Undersea hydraulic coupling with interference fit metal seals |
| CN203098030U (en) * | 2012-12-28 | 2013-07-31 | 淄博柴油机总公司 | Water sealing sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103032150A (en) | 2013-04-10 |
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Address after: No. 118, Yumin Road, Zibo high tech Zone, Shandong Province Patentee after: Zichai Power Co., Ltd. Address before: 255077 28 Huguang Road, Hutian Town, Zhangdian District, Zibo, Shandong Patentee before: Zibo Diesel Engine Parent Company |
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