CN204004363U - A kind of piston sealing structure - Google Patents
A kind of piston sealing structure Download PDFInfo
- Publication number
- CN204004363U CN204004363U CN201420345227.5U CN201420345227U CN204004363U CN 204004363 U CN204004363 U CN 204004363U CN 201420345227 U CN201420345227 U CN 201420345227U CN 204004363 U CN204004363 U CN 204004363U
- Authority
- CN
- China
- Prior art keywords
- ring seal
- locating slot
- sealing structure
- cross
- piston 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of piston sealing structure, comprise positioning block, offer for holding the step hole of seal ring and piston rod on positioning block, the inwall of step hole has locating slot, and described locating slot is reversed V-shape in the cross section of vertical direction; Also comprise for packing the first O-ring seal in locating slot into, be set in the second O-ring seal in the first O-ring seal and be clipped in the first O-ring seal and the second O-ring seal between the 3rd O-ring seal.Piston sealing structure disclosed in the utility model, the sectional shape of the first O-ring seal is corresponding with the sectional shape of locating slot, can easily the first O-ring seal be packed in locating slot like this, again the second O-ring seal is set in the first O-ring seal subsequently, and sandwiches the 3rd O-ring seal between the first O-ring seal and the second O-ring seal.Whole process is all manually actuated, convenient and swift.
Description
Technical field
The utility model relates to piston seal field, relates to specifically a kind of piston sealing structure in this field.
Background technique
Piston sealing structure is the key components and parts in reciprocating motion of the pistons actuator.It is not only related to leakage problem, but also will have influence on performance and the life-span of whole machinery equipment, if frequent shutdown is changed, can reduce manufacturing efficiency.The thickness of this exterior seal ring is thicker, is difficult to pack into by hand, need to knock in hammer, and such mounting type also exists potential safety hazard.
Model utility content
Technical problem to be solved in the utility model, is just to provide the piston sealing structure that a kind of seal ring is easily installed.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A piston sealing structure, comprises positioning block, offers for holding the step hole of seal ring and piston rod on positioning block, and the inwall of described step hole has locating slot along circumferential direction, and described locating slot is reversed V-shape in the cross section of vertical direction; Also comprise for packing the first O-ring seal in locating slot into, be set in the second O-ring seal in the first O-ring seal and be clipped in the first O-ring seal and the second O-ring seal between the 3rd O-ring seal, wherein the first O-ring seal is the reversed V-shape corresponding with locating slot cross section in the cross section of vertical direction, the second O-ring seal is inverted U-shaped in the cross section of vertical direction, and the 3rd O-ring seal is oval in the cross section of vertical direction.
Further, described positioning block is cuboid shape.
Further, the quantity of described step hole is two or more.
Further, the quantity of described locating slot is two, is located at respectively on two steps up and down of described step hole.
Further, described the first O-ring seal is after packing locating slot into, and the summit of its upper and lower both sides will be stretched out outside locating slot.
Further, described the second O-ring seal is set-located with the relative structural type of cross section opening direction mutually with the first O-ring seal.
The beneficial effects of the utility model are:
Piston sealing structure disclosed in the utility model, the sectional shape of the first O-ring seal is corresponding with the sectional shape of locating slot, can easily the first O-ring seal be packed in locating slot like this, again the second O-ring seal is set in the first O-ring seal subsequently, and sandwiches the 3rd O-ring seal between the first O-ring seal and the second O-ring seal.Whole process is all manually actuated, convenient and swift.
Three structures that O-ring seal matches, both can guarantee sealing effect, avoided leaking, and there is no again additionally to increase the area of contact of seal ring and piston rod, the in the situation that of piston rod high-speed motion, also can not increase extra frictional force.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment 1 disclosed piston sealing structure.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, in the present embodiment, when a certain technical characteristics is called as on " being fixed on " another technical characteristics, it can be directly on another technical characteristics or also can have other technical characteristics placed in the middle.When a technical characteristics is considered to " connection " on another technical characteristics time, it can be directly connected to another technical characteristics or may have other technical characteristics placed in the middle simultaneously.The term that the present embodiment is used " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Embodiment 1, and as shown in Figure 1, the present embodiment discloses a kind of piston sealing structure, comprise positioning block 1, on positioning block, offer for holding the step hole 3 of seal ring and piston rod 2, the inwall of described step hole has locating slot 4 along circumferential direction, and described locating slot is reversed V-shape in the cross section of vertical direction; Also comprise for packing the first O-ring seal 5 in locating slot into, be set in the second O-ring seal 6 in the first O-ring seal and be clipped in the first O-ring seal and the second O-ring seal between the 3rd O-ring seal 7, wherein the first O-ring seal is the reversed V-shape corresponding with locating slot cross section in the cross section of vertical direction, the second O-ring seal is inverted U-shaped in the cross section of vertical direction, and the 3rd O-ring seal is oval in the cross section of vertical direction.
Described positioning block is cuboid shape.
The quantity of described step hole is two or more.
The quantity of described locating slot is two, is located at respectively on two steps up and down of described step hole.One group of three O-ring seal is all housed, further to optimize sealing effect in each locating slot.
Described the first O-ring seal is after packing locating slot into, and the summit of its upper and lower both sides will be stretched out outside locating slot.Can further optimize sealing effect like this, only have summit to stretch out outside locating slot simultaneously, can too not increase the surface friction drag of piston rod.
Described the second O-ring seal is set-located with the relative structural type of cross section opening direction mutually with the first O-ring seal.Between two seal rings, closely cooperate, so that enhanced leaktightness effect.
The disclosed piston sealing structure of the present embodiment, the sectional shape of the first O-ring seal is corresponding with the sectional shape of locating slot, can easily the first O-ring seal be packed in locating slot like this, again the second O-ring seal is set in the first O-ring seal subsequently, and sandwiches the 3rd O-ring seal between the first O-ring seal and the second O-ring seal.Whole process is all manually actuated, convenient and swift.
Three structures that O-ring seal matches, both can guarantee sealing effect, avoided leaking, and there is no again additionally to increase the area of contact of seal ring and piston rod, the in the situation that of piston rod high-speed motion, also can not increase extra frictional force.
Claims (6)
1. a piston sealing structure, comprises positioning block, offers for holding the step hole of seal ring and piston rod on positioning block, it is characterized in that: the inwall of described step hole has locating slot along circumferential direction, and described locating slot is reversed V-shape in the cross section of vertical direction; Also comprise for packing the first O-ring seal in locating slot into, be set in the second O-ring seal in the first O-ring seal and be clipped in the first O-ring seal and the second O-ring seal between the 3rd O-ring seal, wherein the first O-ring seal is the reversed V-shape corresponding with locating slot cross section in the cross section of vertical direction, the second O-ring seal is inverted U-shaped in the cross section of vertical direction, and the 3rd O-ring seal is oval in the cross section of vertical direction.
2. piston sealing structure according to claim 1, is characterized in that: described positioning block is cuboid shape.
3. piston sealing structure according to claim 1, is characterized in that: the quantity of described step hole is two or more.
4. piston sealing structure according to claim 1, is characterized in that: the quantity of described locating slot is two, is located at respectively on two steps up and down of described step hole.
5. piston sealing structure according to claim 1, is characterized in that: described the first O-ring seal is after packing locating slot into, and the summit of its upper and lower both sides will be stretched out outside locating slot.
6. piston sealing structure according to claim 1, is characterized in that: described the second O-ring seal is set-located with the relative structural type of cross section opening direction mutually with the first O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345227.5U CN204004363U (en) | 2014-06-26 | 2014-06-26 | A kind of piston sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345227.5U CN204004363U (en) | 2014-06-26 | 2014-06-26 | A kind of piston sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004363U true CN204004363U (en) | 2014-12-10 |
Family
ID=52044366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345227.5U Withdrawn - After Issue CN204004363U (en) | 2014-06-26 | 2014-06-26 | A kind of piston sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110494A (en) * | 2014-06-26 | 2014-10-22 | 浙江力富特机械有限公司 | Piston sealing structure |
-
2014
- 2014-06-26 CN CN201420345227.5U patent/CN204004363U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110494A (en) * | 2014-06-26 | 2014-10-22 | 浙江力富特机械有限公司 | Piston sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Linghui Inventor after: Yang Linghui Fang Fugen Inventor before: Yang Linghui Inventor before: Zhong Weirong Inventor before: Yang Linghui, Zhong Weirong, Fang Fugen |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150929 Address after: 313000 Zhejiang city of Huzhou province Deqing County leidian town revitalization Road No. 9 Patentee after: ZHEJIANG LIFUDA MACHINERY CO., LTD. Address before: 313000 Zhejiang city of Huzhou province Deqing County leidian town revitalization Road No. 9 Patentee before: ZHEJIANG LIFUTE MECHANICAL CO., LTD. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160928 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |