CN202732150U - Sealing structure - Google Patents
Sealing structure Download PDFInfo
- Publication number
- CN202732150U CN202732150U CN201220461652.1U CN201220461652U CN202732150U CN 202732150 U CN202732150 U CN 202732150U CN 201220461652 U CN201220461652 U CN 201220461652U CN 202732150 U CN202732150 U CN 202732150U
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- Prior art keywords
- seal ring
- cylinder cap
- oil hole
- hole
- machine body
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- Expired - Lifetime
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Abstract
The utility model discloses a sealing structure. The sealing structure comprises a machine body and a cylinder cover, wherein a fuel hole is formed on the machine body; and a fuel hole is formed on the cylinder cover at a position corresponding to the fuel hole on the machine body. The sealing structure is structurally characterized in that a large hole larger than the fuel hole on the machine body in diameter is formed on one end of the fuel hole on the machine body close to the cylinder cover; a step surface is formed at the transition position of the large hole and the fuel hole on the machine body; a hollow annular support base placed on the step surface is arranged in the large hole; an annular groove is formed on the outer wall of the support base and on the inner wall of the large hole; a seal ring matched with the annular groove in shape is arranged in the annular groove; the seal ring is exposed out of the machine body; the cylinder cover is pressed on the seal ring after being connected with the machine body so as to realize sealing connection between the machine body and the cylinder cover; and the fuel hole on the machine body, a via-hole on the support base and the fuel hole of the cylinder cover form a fuel channel. The sealing structure provided by the utility model is not restricted by space and arrangement while ensuring a fuel sealing effect, and solves the problem that direct processing of the annular groove is restricted by the space.
Description
Technical field
The utility model relates to a kind of sealing configuration, particularly relates to a kind of engine body and cylinder cap machine oil sealing configuration.
Background technique
The machine oil sealing tool at any position of motor is of great significance, if poorly sealed, the machine oil that the lighter spills can affect the motor outward appearance, increases specific oil consumption, increase user cost, severe one may be because the machine oil that spills be attached to engine hot parts and causes on fire.In existing technology, machine oil sealing means between body and cylinder cap mainly adopts composite gland bush, and mostly is plate shaped composite gland bush, but this plate shaped composite gland bush is not suitable for large bore engine; Also have a kind of sealing means to be: between the oil hole of body and cylinder cap, to be connected with a conduit, conduit one end is positioned at the body oil hole, the other end is in the cylinder cap oil hole, the conduit two ends are all with a groove simultaneously, have respectively an O type rubber seal to seal, the constraint location when this sealing means has increased the cylinder cap assembling is difficult for assembling, and higher to oil hole requirement on machining accuracy between body and cylinder cap, increase cost.If cancellation conduit, direct groove at body or cylinder cap processing seal ring, often be subject to the restriction that the space is arranged, and the cost of profile cutting tool is higher, if also use O type rubber seal, the requirement that does not then reach decrement, do not have good sealing effect, if reach necessary decrement, then must increase the sectional dimension of O type rubber seal, the groove of larger height and width is arranged simultaneously.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of sealing configuration that is not subjected to the space arrangement constraints.
For solving the problems of the technologies described above, the utility model comprises body and cylinder cap, body is provided with the body oil hole, cylinder cap is provided with the cylinder cap oil hole corresponding with body oil hole position, its structural feature is that the body oil hole forms one section diameter greater than the gross porosity of body oil hole diameter near head side, gross porosity and body oil hole transition position form step surface, be provided with the annular brace seat of the hollow that places on the step surface in the gross porosity, supporting base outer wall and gross porosity inwall form annular groove, be provided with the seal ring that adapts with its shape in the annular groove, seal ring exposes body, cylinder cap is with after body is connected, cylinder cap overlays on seal ring, and that realizes body and cylinder cap is tightly connected the body oil hole, the through hole of supporting base and cylinder cap oil hole form oil passageway.
After adopting said structure, when directly when the groove of body or cylinder cap processing seal ring is subject to the restriction of space layout, can directly form one section diameter greater than the gross porosity of body oil hole diameter at the body oil hole near head side, be provided with the hollow ring supporting base that places on the step surface in the gross porosity, supporting base outer wall and gross porosity inwall form annular groove, be provided with the seal ring that adapts with its shape in the annular groove, the restriction that this kind structure is not arranged by can in the oil-tightening situation of assurance machine in the space has solved direct processing annular groove space-constrained problem.
Described supporting base comprises sleeve pipe, and the lower end of sleeve pipe stretches out and forms the ring platform that matches with step surface, and supporting base can limit the amount of deformation after seal ring is subject to impacting force.
The material of described seal ring is fluorine rubber.
Described seal ring and cylinder cap surface of contact are cambered surface, with the surface of contact of annular groove bottom surface be the plane, make the seal ring top and bottom can form sealing strip.
The middle part width of described seal ring section makes the inside and outside both sides of seal ring also form side seal greater than the width at two ends, greatly improves sealing effect.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of seal ring;
Fig. 3 is the structural representation of supporting base.
Embodiment
As shown in Figure 1, sealing configuration comprises body 1 and cylinder cap 2, body 1 is provided with body oil hole 3, cylinder cap 2 is provided with the cylinder cap oil hole 6 corresponding with body oil hole 3 positions, body oil hole 3 forms one section diameter greater than the gross porosity 7 of body oil hole 3 diameters near cylinder cap 2 ends, gross porosity 7 forms step surface 8 with body oil hole 3 transition positions, be provided with the hollow ring supporting base 4 that places on the step surface 8 in the gross porosity 7, supporting base 4 outer walls and gross porosity 7 inwalls form annular groove, be provided with the seal ring 5 that adapts with its shape in the annular groove, seal ring 5 exposes body 1, cylinder cap 2 is with after body 1 is connected, cylinder cap 2 overlays on seal ring 5, and that realizes body 1 and cylinder cap 2 is tightly connected body oil hole 3, the inner chamber of sleeve pipe 42 and cylinder cap oil hole 6 form oil passageway.
As shown in figures 1 and 3, supporting base 4 comprises sleeve pipe 42, and the lower end of sleeve pipe 42 stretches out and forms the ring platform 41 that matches with step surface 8, and supporting base 4 can limit the amount of deformation after seal ring 5 is subject to impacting force.The bottom surface of ring platform 41 equals the height of gross porosity 7 to the vertical height of sleeve pipe 42 end faces, make supporting base 4 be sleeved on gross porosity 7 interior after, sleeve pipe 42 end faces are concordant with the upper surface of body 1.The internal diameter of sleeve pipe 42 is slightly less than the internal diameter of oil hole 3, can increase the width of annular groove in the situation that machine oil can be smooth and easy mobile between assurance body 1 and the cylinder cap 2 like this, and the width of seal ring 5 can suitably be become greatly, strengthens the sealing effect when using.The external diameter of ring platform 41 is slightly less than the internal diameter of gross porosity 7, makes ring platform 41 upper surfaces become the bottom surface of annular groove, and after seal ring 5 was installed, seal ring 5 bottom surfaces can fully contact with ring platform 41 upper surfaces, prevented that not only supporting base 4 from sliding, and also can increase sealing effect.Supporting base 4 also can be designed to the structure of one, and the thickness of supporting base 4 can be regulated as required, arrangement space hour, that can do is thinner, and preferably flexibility is arranged, and saves the space.
As depicted in figs. 1 and 2, the annular space of the height of the section of seal ring 5 and gross porosity and supporting base 4 formations adapts.The material of seal ring 5 is fluorine rubber, the section of seal ring 5 is similar rectangular, seal ring 5 is cambered surface with cylinder cap 2 surface of contact, with the ring platform 41 surface of contact be the plane, the middle part width of seal ring 5 sections is greater than the width at two ends, the middle part that is seal ring 5 sections is side-prominent to two, so not only seal ring 5 above and below form sealing strip, seal ring 5 inside and outside both sides also all form the side seal band, greatly improve sealing effect, and compare O type rubber seal, the seal ring 5 of same cross-sectional width can satisfy larger decrement.The lower surface of seal ring 5 also can be designed to the structure that other cooperatively interact and can seal with the upper surface of ring platform 41, such as the upper surface that will encircle platform 41 groove is set, at the lower surface setting of seal ring 5 convex tendon corresponding with groove.
When directly when the groove of body 1 or cylinder cap 2 processing seal rings is subject to the restriction of space layout, can directly form one section diameter greater than the gross porosity 7 of body oil hole 3 diameters at body oil hole 3 near cylinder cap 2 ends, be provided with the hollow ring supporting base 4 that places on the step surface 8 in the gross porosity 7, supporting base 4 outer walls and gross porosity 7 inwalls form annular groove, be provided with the seal ring 5 that adapts with its shape in the annular groove, the restriction that this kind structure is not arranged by can in the oil-tightening situation of assurance machine in the space has solved direct processing annular groove space-constrained problem.
The utility model not only is applicable to the sealing of machine oil between body and cylinder cap, also be applicable to the sealing between other two parts, particularly be subjected to the space arrangement constraints can't be when parts processing is used for the groove of seal ring is set, can adopt sealing configuration form of the present utility model, can not only guarantee the sealing between parts, and it is little to take up room.
Claims (5)
1. sealing configuration, comprise body (1) and cylinder cap (2), body (1) is provided with body oil hole (3), cylinder cap (2) is provided with the cylinder cap oil hole (6) corresponding with body oil hole (3) position, it is characterized in that body oil hole (3) forms one section diameter greater than the gross porosity (7) of body oil hole (3) diameter near cylinder cap (2) end, gross porosity (7) forms step surface (8) with body oil hole (3) transition position, be provided with the annular brace seat (4) that places the hollow on the step surface (8) in the gross porosity (7), supporting base (4) outer wall and gross porosity (7) inwall form annular groove, be provided with the seal ring (5) that adapts with its shape in the annular groove, seal ring (5) exposes body (1), cylinder cap (2) is with after body (1) is connected, cylinder cap (2) overlays on seal ring (5), that realizes body (1) and cylinder cap (2) is tightly connected body oil hole (3), the through hole of supporting base and cylinder cap oil hole (6) form oil passageway.
2. sealing configuration according to claim 1 is characterized in that described supporting base (4) comprises sleeve pipe (42), and the lower end of sleeve pipe (42) stretches out and forms the ring platform (41) that matches with step surface (8).
3. sealing configuration according to claim 1 and 2, the material that it is characterized in that described seal ring (5) is fluorine rubber.
4. sealing configuration according to claim 3 is characterized in that described seal ring (5) and cylinder cap (2) surface of contact are cambered surface, with the surface of contact of annular groove bottom surface be the plane.
5. sealing configuration according to claim 3 is characterized in that the middle part width of described seal ring (5) section is greater than the width at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220461652.1U CN202732150U (en) | 2012-09-12 | 2012-09-12 | Sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220461652.1U CN202732150U (en) | 2012-09-12 | 2012-09-12 | Sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732150U true CN202732150U (en) | 2013-02-13 |
Family
ID=47657860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220461652.1U Expired - Lifetime CN202732150U (en) | 2012-09-12 | 2012-09-12 | Sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236438A (en) * | 2021-06-09 | 2021-08-10 | 中国民用航空飞行学院 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
-
2012
- 2012-09-12 CN CN201220461652.1U patent/CN202732150U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236438A (en) * | 2021-06-09 | 2021-08-10 | 中国民用航空飞行学院 | Method for repairing lubricating oil leakage of aviation piston engine casing through bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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| CX01 | Expiry of patent term |