CN203098030U - Water sealing sleeve - Google Patents
Water sealing sleeve Download PDFInfo
- Publication number
- CN203098030U CN203098030U CN2012207387083U CN201220738708U CN203098030U CN 203098030 U CN203098030 U CN 203098030U CN 2012207387083 U CN2012207387083 U CN 2012207387083U CN 201220738708 U CN201220738708 U CN 201220738708U CN 203098030 U CN203098030 U CN 203098030U
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- CN
- China
- Prior art keywords
- sleeve
- water seal
- sleeve pipe
- gum
- shape circle
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a water sealing sleeve which comprises a rubber sleeve (1) and a metal sleeve (2) arranged inside the rubber sleeve (1) in a sleeved mode. 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). The inner diameter of each O-shaped ring (3) is smaller than that of the rubber sleeve (1). The water sealing sleeve is installed inside a water sealing sleeve installation hole of a machine body and receives axial extrusion force and the at least one O-shaped ring (3) is sealed with at least one of an air cylinder cover and the machine body. Due to the fact that the inner diameter of each O-shaped ring (3) is smaller than that of the rubber sleeve (1), the inner diameter of each O-shaped ring (3) is extruded into the rubber sleeve (1) and the middle of the metal sleeve (2) also protrudes outwards. Due to the fact that the middle of the metal sleeve (2) outwards extrudes the rubber sleeve (1), the middle of the rubber sleeve (1) is attached to the hole wall of the water sealing sleeve installation hole, a sealing effect of the water sealing sleeve is improved, and a leakage degree of the position of the water sealing sleeve is effectively reduced.
Description
Technical field
The utility model relates to technical field of sealing technology, particularly relates to a kind of water seal sleeve pipe.
Background technique
In the using process of diesel engine, water seal sleeve position seepy question has often appearred.
At present, water seal sleeve pipe commonly used is copper water seal sleeve pipe, copper hydraulic gland pipe has copper pipe and the outside thereof and inlays O shape circle, and the water seal sleeve pipe is placed water seal sleeve pipe mounting hole on the body, and the distortion by O shape circle is fitted the hole wall of its water seal sleeve pipe mounting hole and realized the sealing in water route.
But, along with the development of highly-intensified diesel engine, the water route boost in pressure, the usage requirement that copper water seal sleeve pipe can't satisfy makes that the hydraulic gland seal of tube is bad; Even in the lower diesel engine of water route pressure, in a single day cylinder head the time occurs in assembling that the water seal sleeve pipe is pressed partially, when the dimension deviation of water seal sleeve pipe and water seal sleeve pipe mounting hole is excessive, the capital causes cylinder head and body mating face to leak, and, it is very inconvenient that the water seal sleeve pipe is changed in this position, need remove component such as cylinder cap again, waste time and energy.
Therefore, how to improve the sealing effect of water seal sleeve pipe, reduce the water seal sleeve position degree of leaking, become those skilled in the art's important technological problems to be solved.
The model utility content
The purpose of this utility model provides a kind of water seal sleeve pipe, has improved the sealing effect of water seal sleeve pipe, effectively reduces the water seal sleeve position degree of leaking.
The water seal sleeve pipe that the utility model provides comprises gum sleeve and is sheathed on the interior metal sleeve of described gum sleeve; At least one end of described gum sleeve is provided with the O shape circle with its coaxial arrangement, 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, evenly be provided with on the outer wall of described metal sleeve along its axial arranged groove, the inwall of described gum sleeve is provided with and the concavo-convex projection that cooperates of described groove.
Preferably, the quantity of described groove is 12; 12 described grooves circumferentially evenly distributing along described metal sleeve.
Preferably, described groove is a 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 the stainless steel sleeve pipe.
Preferably, described gum sleeve is the nitrile butadiene rubber sleeve pipe.
Preferably, described O shape circle is an integral structure with described gum sleeve.
The water seal sleeve pipe that the utility model provides, metal sleeve is sheathed on gum sleeve, in the water seal sleeve pipe mounting hole that the water seal sleeve pipe is installed on body, by cylinder head being covered in the end of water seal sleeve pipe mounting hole, make the water seal sleeve pipe be subjected to axial compression power, at least one sealing in O shape circle and cylinder head and the body; Because the internal diameter of O shape circle is less than the internal diameter of gum sleeve, make the internal diameter extruding of O shape circle enter in the gum sleeve, and then the intermediate portion that drives gum sleeve is to outer lug, owing to be arranged with metal sleeve in the gum sleeve, makes the intermediate portion of metal sleeve equally to outer lug; The intermediate portion of metal sleeve outwards pushes gum sleeve, make the intermediate portion of gum sleeve 1 and the hole wall of water seal sleeve pipe mounting hole fit, further improve the sealing effect of water seal sleeve pipe in water seal sleeve pipe mounting hole, effectively reduced the degree of leaking of water seal sleeve position.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the gum sleeve of water seal sleeve pipe in the utility model embodiment and the structural representation of O shape circle;
Fig. 2 looks schematic representation for the master of the metal sleeve of water seal sleeve pipe in the utility model embodiment;
Fig. 3 is the schematic top plan view of the metal sleeve of water seal sleeve pipe in the utility model embodiment.
Embodiment
The purpose of this utility model provides a kind of water seal sleeve pipe, has improved the sealing effect of water seal sleeve pipe, effectively reduces the water seal sleeve position degree of leaking.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the gum sleeve of water seal sleeve pipe in the utility model embodiment and the structural representation of O shape circle; Fig. 2 looks schematic representation for the master of the metal sleeve of water seal sleeve pipe in the utility model embodiment; Fig. 3 is the schematic top plan view of the metal sleeve of water seal sleeve pipe in the utility model embodiment.
The utility model embodiment provides a kind of water seal sleeve pipe, comprises gum sleeve 1 and is sheathed on metal sleeve 2 in the gum sleeve 1; At least one end of gum sleeve 1 is provided with the O shape circle 3 with its coaxial arrangement, and the internal diameter of O shape circle 3 is less than the internal diameter of gum sleeve 1.
The water seal sleeve pipe that the utility model embodiment provides, metal sleeve 2 is sheathed on gum sleeve 1, in the water seal sleeve pipe mounting hole that the water seal sleeve pipe is installed on body, by cylinder head being covered in the end of water seal sleeve pipe mounting hole, make the water seal sleeve pipe be subjected to axial compression power, at least one sealing in O shape circle 3 and cylinder head and the body; Because the internal diameter of O shape circle 3 is less than the internal diameter of gum sleeve 1, make the internal diameter extruding of O shape circle 3 enter in the gum sleeve 1, and then the intermediate portion that drives gum sleeve 1 is to outer lug, owing to be arranged with metal sleeve 2 in the gum sleeve 1, makes the intermediate portion of metal sleeve 2 equally to outer lug; The intermediate portion of metal sleeve 2 outwards pushes gum sleeve 1, make the intermediate portion of gum sleeve 1 and the hole wall of water seal sleeve pipe mounting hole fit, further improve the sealing effect of water seal sleeve pipe in water seal sleeve pipe mounting hole, effectively reduced the degree of leaking of water seal sleeve position.
Preferably, the two ends of gum sleeve 1 are provided with O shape circle 3.The quantity that is O shape circle 3 is two, and one of them O shape circle 3 is arranged at an 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 the gum sleeve 1, and O shape circle 3 is set all at the two ends of gum sleeve 1, effectively avoided metal sleeve 2 by slippage in the gum sleeve 1, simultaneously, avoided metal sleeve 2 directly to contact with body, effectively improved the electro erosion between metal sleeve 2, cylinder head and the body with cylinder head.
In such scheme, for fear of metal sleeve 2 moving axially with respect to gum sleeve 1, preferably the height of gum sleeve 1 is set to the size identical with the height of metal sleeve 2, promptly the distance between the close mutually face of two O shapes circle 3 equals the height of metal sleeve 2, has effectively avoided metal sleeve 2 moving axially with respect to gum sleeve 1.
Install with respect to water seal sleeve pipe mounting hole for the ease of the water seal sleeve pipe that the utility model embodiment provides, with the external diameter of its gum sleeve 1 internal diameter less than water seal sleeve pipe mounting hole, so that the water seal sleeve pipe be subjected to axial compression power after intermediate portion to outer lug, 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 the gum sleeve 1, for the ease of both relative fixed, evenly is provided with on the outer wall of metal sleeve 2 along its axial arranged groove 21, the inwall of gum sleeve 1 is provided with and the groove 21 concavo-convex projectioies that cooperate 11.Cooperate with the concavo-convex of groove 21 by protruding 11, effectively avoided metal sleeve 2 and the circumferential of gum sleeve 1 to move, make both relative fixed.
In order to improve the stability maintenance of metal sleeve 2 and gum sleeve 1, preferably the quantity of groove 21 is set to 12; 12 grooves 21 circumferentially evenly distributing along metal sleeve 2.Quantity that also can groove 21 is set to other quantity such as 4,8 or 16, introduces no longer one by one at this.
Preferably, groove 21 is a curve bath.
In the water seal sleeve pipe that the utility model embodiment 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.Because the internal diameter of O shape circle 3 has been guaranteed the unimpeded of metal sleeve 2 water flow inside greater than the internal diameter of metal sleeve 2, avoided being subjected to the obstruction of 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, has guaranteed the outer wall applying of the inwall and the metal sleeve 2 of gum sleeve 1.
Further, metal sleeve 2 is the stainless steel sleeve pipe.Also can select other metallic material for use, not do concrete restriction at this.
Because the oil resistant of nitrile butadiene rubber, heat-resisting and ageing resistance is better preferably is set to the nitrile butadiene rubber sleeve pipe with gum sleeve 1.
For the ease of processing, O shape circle 3 is an integral structure with gum sleeve 1.Be that O shape circle 3 is rubber o-ring, and process by molding and forming with gum sleeve 1.
More than water seal sleeve pipe provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a water seal sleeve pipe is characterized in that, comprises gum sleeve (1) and is sheathed on the interior metal sleeve (2) of described gum sleeve (1); At least one end of described gum sleeve (1) is provided with the O shape circle (3) with its coaxial arrangement, and the internal diameter of described O shape circle (3) is less than the internal diameter of described gum sleeve (1).
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, evenly be provided with on the outer wall of described metal sleeve (2) along its axial arranged groove (21), the inwall of described gum sleeve (1) is provided with and the concavo-convex projection that cooperates of described groove (21) (11).
5. water seal sleeve pipe as claimed in claim 4 is characterized in that, the quantity of described groove (21) is 12; 12 described grooves (21) circumferentially evenly distribute along described metal sleeve (2).
6. water seal sleeve pipe as claimed in claim 4 is characterized in that, described groove (21) is a curve bath.
7. 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).
8. water seal sleeve pipe as claimed in claim 1 is characterized in that, described metal sleeve (2) is the stainless steel sleeve pipe.
9. water seal sleeve pipe as claimed in claim 1 is characterized in that, described gum sleeve (1) is the nitrile butadiene rubber sleeve pipe.
10. as each described water seal sleeve pipe of claim 1-9, it is characterized in that described O shape circle (3) is an integral structure with described gum sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207387083U CN203098030U (en) | 2012-12-28 | 2012-12-28 | Water sealing sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207387083U CN203098030U (en) | 2012-12-28 | 2012-12-28 | Water sealing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098030U true CN203098030U (en) | 2013-07-31 |
Family
ID=48849437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207387083U Withdrawn - After Issue CN203098030U (en) | 2012-12-28 | 2012-12-28 | Water sealing sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032150A (en) * | 2012-12-28 | 2013-04-10 | 淄博柴油机总公司 | Water seal bushing |
-
2012
- 2012-12-28 CN CN2012207387083U patent/CN203098030U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032150A (en) * | 2012-12-28 | 2013-04-10 | 淄博柴油机总公司 | Water seal bushing |
| CN103032150B (en) * | 2012-12-28 | 2015-02-11 | 淄博柴油机总公司 | Water seal bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150211 |
|
| RGAV | Abandon patent right to avoid regrant |