CN202251957U - Oil cylinder spiral sealing pad - Google Patents
Oil cylinder spiral sealing pad Download PDFInfo
- Publication number
- CN202251957U CN202251957U CN201120340014XU CN201120340014U CN202251957U CN 202251957 U CN202251957 U CN 202251957U CN 201120340014X U CN201120340014X U CN 201120340014XU CN 201120340014 U CN201120340014 U CN 201120340014U CN 202251957 U CN202251957 U CN 202251957U
- Authority
- CN
- China
- Prior art keywords
- spiral
- oil cylinder
- ring
- seal
- seal ring
- 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.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides an oil cylinder spiral sealing pad, which is applied to a piston of a hydraulic oil cylinder and comprises a straight spiral sealing ring, wherein spaces between each spiral ring of the sealing ring are not greater than 0.5mm, and relative surfaces between all spiral rings are respectively rough surfaces. The oil cylinder spiral sealing pad has the advantages that the air tightness of the oil cylinder can be ensured, in addition, the assembly is convenient, and in addition, the oil cylinder spiral sealing pad cannot be easily lost.
Description
Affiliated technical field
The utility model relates to a kind of hydraulic jack accessory, especially, is a kind of sealing gasket that is applied to oil cylinder piston.
Background technique
In the work of hydraulic jack, need to promote the piston work done through hydraulic oil, therefore need to guarantee the tightness between piston and the oil cylinder inner wall; Usually; Need on piston, add O-ring seal, and the assembling of seal ring for ease, single seal ring must be offered a breach; But this breach will cause bubble-tight destruction just, and therefore, present seal ring generally is provided with at least two, and the gap position between each seal ring is along circumferentially staggering each other; For this kind rubber band, when assembling, need careful adjustment respectively to enclose the position relation between the rubber band, so the assembly process trouble, and scattered rubber band is lost easily.
The model utility content
In order to address the above problem, the purpose of the utility model is to provide a kind of oil cylinder spiral seal pad, and this oil cylinder spiral seal pad not only can guarantee the tightness of oil cylinder, and easy to assembly, and is difficult for losing.
The utility model solves the technological scheme that its technical problem adopted: this oil cylinder spiral seal pad comprises and is straight spiral helicine seal ring that the spacing between each spiral ring of sealing circle is not more than 0.5mm, and the apparent surface between each spiral ring is roughened surface.
As preferably, the spiral number of turns of said seal ring is more than 3 circles, to guarantee good air-tightness.
As preferably; The outer side surface of said seal ring is offered oil groove one along the spiral rotate path, and its width is not more than 0.5mm, and this oil groove can make a spot of fluid flow along this oil groove; With lubricated equably oil cylinder inner surface in the process of piston motion, thus the rate of wear of reduction seal ring.
As the further improvement of above-mentioned optimal way, the gap location between each spiral ring of said oil groove and said seal ring all offers connectivity slot, deposits the corrosion seal ring for a long time with the long-pending oil that prevents the gap location between each spiral ring.
The advantage of the utility model is: this oil cylinder spiral seal pad only need draw back spiral in use, and disposable pull to the spiral chute that is opened on the piston gets final product; Can know from its structure; Fluid can only be along the Clearance Flow between each spiral ring of seal ring, because the gap is not more than 0.5mm, and the apparent surface between the spiral ring is roughened surface; Therefore the flow resistance of fluid is very big, and enough sealings can be provided; This oil cylinder spiral seal pad assembling is simple, and because a piston is joined a sealing gasket, the sealing pad is long-pending again greater than the conventional seals circle, therefore is difficult for withered and fallen losing.
Description of drawings
Fig. 1 is this oil cylinder spiral seal pad and schematic representation after oil cylinder cooperates.
Fig. 2 is the schematic representation after this oil cylinder spiral seal pad draws back.
Fig. 3 is the partial enlarged drawing of I portion among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
In the embodiment of Fig. 1-shown in Figure 3; This oil cylinder spiral seal pad comprises and is straight spiral helicine seal ring 1, in Fig. 1, behind the sealing circle 1 cover upper piston 2; Spacing between each spiral ring of sealing circle 1 is not more than 0.5mm, and the apparent surface between each spiral ring is roughened surface.
The spiral number of turns of said seal ring 1 is more than 3 circles, and is to guarantee good air-tightness, after its spiral is drawn back, as shown in Figure 2.
Above-mentioned oil cylinder spiral seal pad; As shown in Figure 3; The outer side surface of said seal ring 1 is offered oil groove 11 one along the spiral rotate path, and its width is not more than 0.5mm, and this oil groove 11 can make a spot of fluid flow along this oil groove 11; With lubricated equably oil cylinder inner surface in the process of piston 2 motions, thus the rate of wear of reduction seal ring 1; Gap location between each spiral ring of said in addition oil groove 11 and said seal ring 1 all offers connectivity slot 12, deposits corrosion seal ring 1 for a long time with the long-pending oil that prevents the gap location between each spiral ring.
Above-mentioned oil cylinder spiral seal pad only need draw back spiral in use, and disposable pull to the spiral chute that is opened on the piston 2 gets final product; Can know from its structure; Fluid can only be along the Clearance Flow between each spiral ring of seal ring 1, because the gap is not more than 0.5mm, and the apparent surface between the spiral ring is roughened surface; Therefore the flow resistance of fluid is very big, and enough sealings can be provided; This oil cylinder spiral seal pad assembling is simple, and because a piston is joined a sealing gasket, the sealing pad is long-pending again greater than the conventional seals circle, therefore is difficult for withered and fallen losing.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. oil cylinder spiral seal pad, it is characterized in that: comprise being straight spiral helicine seal ring (1), the spacing between each spiral ring of sealing circle (1) is not more than 0.5mm, and the apparent surface between each spiral ring is roughened surface.
2. oil cylinder spiral seal pad according to claim 1 is characterized in that: the spiral number of turns of said seal ring (1) is more than 3 circles.
3. oil cylinder spiral seal pad according to claim 1 is characterized in that: the outer side surface of said seal ring (1) is offered one oil groove (11) along the spiral rotate path, and its width is not more than 0.5mm.
4. oil cylinder spiral seal pad according to claim 3 is characterized in that: the gap location between each spiral ring of said oil groove (11) and said seal ring (1) all offers connectivity slot (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340014XU CN202251957U (en) | 2011-09-08 | 2011-09-08 | Oil cylinder spiral sealing pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120340014XU CN202251957U (en) | 2011-09-08 | 2011-09-08 | Oil cylinder spiral sealing pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251957U true CN202251957U (en) | 2012-05-30 |
Family
ID=46113200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120340014XU Expired - Fee Related CN202251957U (en) | 2011-09-08 | 2011-09-08 | Oil cylinder spiral sealing pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390857A (en) * | 2014-08-04 | 2016-03-09 | 泰科电子公司 | Connector module with cable exit region gasket |
-
2011
- 2011-09-08 CN CN201120340014XU patent/CN202251957U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390857A (en) * | 2014-08-04 | 2016-03-09 | 泰科电子公司 | Connector module with cable exit region gasket |
| CN105390857B (en) * | 2014-08-04 | 2019-08-06 | 泰连公司 | Connector modules with cable outlet region washer |
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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: 20120530 Termination date: 20130908 |