CN202971878U - Hydraulic bi-direction and internal-and-external seal cup - Google Patents
Hydraulic bi-direction and internal-and-external seal cup Download PDFInfo
- Publication number
- CN202971878U CN202971878U CN 201220666798 CN201220666798U CN202971878U CN 202971878 U CN202971878 U CN 202971878U CN 201220666798 CN201220666798 CN 201220666798 CN 201220666798 U CN201220666798 U CN 201220666798U CN 202971878 U CN202971878 U CN 202971878U
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- seal cup
- cup
- hydraulic
- internal
- cross
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic bi-direction and internal-and-external seal cup. The hydraulic bi-direction and internal-and-external seal cup is manufactured by connection of the bottoms of two single-direction seal cups in a back-to-back mode, wherein each single-direction seal cup is provided with an internal-and-external sealing hole part. According to the hydraulic bi-direction and internal-and-external seal cup, annular grooves are formed in the inner surface of a round body of the seal cup and in the outer surface of the round body of the seal cup, wherein each groove is trapezoidal in cross section or each groove is similar to a trapezoid with filleted corners in cross section, annular concave grooves are formed at two ends of the seal cup, the cross section of the seal cup is formed by two groups, wherein each group is formed by horizontal connection of the lower ends of two Ys, and the outline of the seal cup is round. Due to the adoption of the hydraulic bi-direction and internal-and-external seal cup which is simple in structure and convenient to manufacture, bi-direction sealing is achieved without the need for installing two seal cups on one piston, the number of accessories is reduced, size is reduced, and cost is reduced.
Description
Technical field
The utility model relates to a kind of for sealing cup inside and outside the hydraulic bidirectional of hydraulic system.
Background technique
The leather cup that uses now is all one-way sealing basically, causes leather cup can not play seal action when mobile to opposite direction.
Summary of the invention
The purpose of this utility model be to provide in a kind of cylinder body in hydraulic system forward and when oppositely mobile, can both play the leather cup of seal action.
For achieving the above object, the inside and outside sealing cup of described the utility model hydraulic bidirectional, it is characterized in that: the inside and outside sealing cup of hydraulic bidirectional is that the bottom with the leather cup of two one-way sealings that inside and outside sealing oral area arranged leans against privately and is manufactured in together, trapezoidal circular groove after having the cross section to be trapezoidal or fillet on the inner and outer surface on the circular body of leather cup, there is annular groove at the two ends of leather cup; The shape in the cross section of leather cup by two "
Y" two groups of compositions laterally linking together of lower end, the profile on surface is circular.
The sealed mouth of sealing cup has elasticity inside and outside hydraulic bidirectional in order to make, and the inside and outside sealing cup of the described the utility model hydraulic bidirectional resilient rubber of apparatus is during fabrication made.
In order to increase the sealing of leather cup when positive and negative direction moves, the diameter of the sealed mouth end of the positive and negative direction of the inside and outside sealing cup of described the utility model hydraulic bidirectional is consistent.
Inside and outside the utility model hydraulic bidirectional, sealing cup is simple in structure, easily manufactured, after adopting the inside and outside sealing cup of hydraulic bidirectional, has avoided filling two leather cups and carry out two way sealed on a piston, has reduced accessory, has dwindled volume, has reduced cost.
Description of drawings
Fig. 1 is the form structure schematic diagram of the plan view when inside and outside the utility model hydraulic bidirectional, sealing cup keeps flat.
Fig. 2 is the structural representation of the sectional view of the inside and outside sealing cup of the utility model hydraulic bidirectional.
Embodiment
The inside and outside sealing cup of the utility model hydraulic bidirectional is that the bottom with the leather cup of two one-way sealings that inside and outside sealing oral area arranged leans against privately and is manufactured in together, trapezoidal circular groove after having the cross section to be trapezoidal or fillet on the inner and outer surface on the circular body of leather cup, there is annular groove at the two ends of leather cup; The shape in the cross section of leather cup by two "
Y" two groups of compositions laterally linking together of lower end, the profile on surface is circular.
The sealed mouth of sealing cup has elasticity inside and outside hydraulic bidirectional in order to make, and the resilient rubber of apparatus is made during fabrication.In order to increase the sealing of leather cup when positive and negative direction moves, the diameter of the sealed mouth end of the positive and negative direction of the inside and outside sealing cup of hydraulic bidirectional is consistent.
The inside and outside sealing cup of the utility model hydraulic bidirectional is arranged in the cylinder body or valve body that need to carry out two way sealed, the external sealed oral area of the inside and outside sealing cup of hydraulic bidirectional contacts with the inwall of cylinder body or valve body, and the interior sealing oral area of the inside and outside sealing cup of hydraulic bidirectional is enclosed within on post or bar.After hydraulic oil entered cylinder body or valve body one end interior, hydraulic oil promoted that the inside and outside sealing cup of hydraulic bidirectional moves forward, promotes post or bar moves and works.After hydraulic oil entered in cylinder body or valve body from the opposite direction the other end of cylinder body or valve body, hydraulic oil was from promoting sealing cup inside and outside hydraulic bidirectional in the other direction, and the inside and outside sealing cup of hydraulic bidirectional moves backward, promotes post or bar also moves backward and works.
When the inside and outside sealing cup of the utility model hydraulic bidirectional is used for the hydraulically extensible cylinder, in body one by one, a hydraulic bidirectional only is installed inside and outside sealing cup on plunger rod, both reduced an annular groove of plunger rod, reduced again by a leather cup.
Claims (1)
1. the inside and outside sealing cup of a hydraulic bidirectional, it is characterized in that: the inside and outside sealing cup of hydraulic bidirectional is that the bottom with the leather cup of two one-way sealings that inside and outside sealing oral area arranged leans against privately and is manufactured in together, trapezoidal circular groove after having the cross section to be trapezoidal or fillet on the inner and outer surface on the circular body of leather cup, there is annular groove at the two ends of leather cup; The shape in the cross section of leather cup by two "
Y" two groups of compositions laterally linking together of lower end, the profile on surface is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666798 CN202971878U (en) | 2012-12-07 | 2012-12-07 | Hydraulic bi-direction and internal-and-external seal cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666798 CN202971878U (en) | 2012-12-07 | 2012-12-07 | Hydraulic bi-direction and internal-and-external seal cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971878U true CN202971878U (en) | 2013-06-05 |
Family
ID=48512955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220666798 Expired - Fee Related CN202971878U (en) | 2012-12-07 | 2012-12-07 | Hydraulic bi-direction and internal-and-external seal cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971878U (en) |
-
2012
- 2012-12-07 CN CN 201220666798 patent/CN202971878U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131207 |