CN201964068U - Seal ring - Google Patents
Seal ring Download PDFInfo
- Publication number
- CN201964068U CN201964068U CN 201120050449 CN201120050449U CN201964068U CN 201964068 U CN201964068 U CN 201964068U CN 201120050449 CN201120050449 CN 201120050449 CN 201120050449 U CN201120050449 U CN 201120050449U CN 201964068 U CN201964068 U CN 201964068U
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- CN
- China
- Prior art keywords
- seal ring
- main body
- ring main
- seal
- utility
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- 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 - Lifetime
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Abstract
The utility model discloses a seal ring, which comprises a seal ring main body, wherein at least one gap is arranged on the seal ring main body; and the gap extends to the interior of the seal ring main body from an inner wall of a through hole of the seal ring main body. Through arranging the gap and seal ribs on the seal ring main body, the seal ring can perform self-seal compensation within a range to a certain extent when the rate of compression falls, so as to keep a certain effective seal capability, guarantee the normal operating pressure of a brake piping system, and avoid the external dust, silt, sewage, and the like from entering the interior of the piping system at the same time.
Description
Technical field
The utility model relates to a kind of seal ring.
Background technique
The freight car braking piping is sealed into flange seal, belong to static sealing, simultaneously because China railways road field width is wide, various weather geographical conditions nearly all have, frequency of utilization is very big, has the equipment enormous amount simultaneously, the not first-class industry characteristic of maintenance condition, selecting to use rectangular seal is science, correct from technological layer, also is to adopt in the AAR system.But it is same, because these characteristics of China railways equipment, also may cause piping flange seal structure because of vibrations in the long-time running process are become flexible, modification, add that some rubber material self selected under the low particularly low temperature of the improper performance that causes problems such as elasticity is relatively poor for use, occur line seal bad, leak out seriously, even inefficacy etc. influences the problem of traffic safety.
Up to now, most static sealings are all guaranteeing that sealing configuration satisfies " passive " sealing under design and manufacturing, the maintenance requirement prerequisite, promptly must keep the following in working order essential compressibility of seal ring, in case compressibility reduces, sealing effect will reduce, airtight for the sealing difficulty maximum, this phenomenon is more remarkable.Therefore, when compressibility descended, conventional seals structural type can not play the function of effective sealing.
The model utility content
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of when compressibility descends, in scope to a certain degree, can make certain self-sealing compensation, thereby can keep the seal ring of certain effective sealability.
The technical solution of the utility model is achieved in that a kind of seal ring, comprise the seal ring main body, it is characterized in that: described seal ring main body is provided with at least one slit, and described slit extends to the seal ring body interior by the through-hole wall of seal ring main body.
Seal ring described in the utility model, its inner ring of labial surface up and down place in described seal ring main body is provided with the sealed muscle of projection laterally.
Seal ring described in the utility model, its described seal ring main body is provided with two slits, is provided with at least one gas guide groove that is used to be communicated with two slits between the through-hole wall of described seal ring main body, two slits.
Seal ring described in the utility model, the vertical cross-section of its described seal ring main body is the E type.
Seal ring described in the utility model, its described two slits are parallel to each other and respectively near the labial surface up and down of seal ring main body.
Seal ring described in the utility model, its described gas guide groove is evenly distributed on the same circumference.
Slit and the sealed muscle of the utility model by on the seal ring main body, being provided with, when compressibility descends, in scope to a certain degree, seal ring can be made certain self-sealing compensation, thereby can keep certain effective sealability, to guarantee the normal working pressure of braking pipe arrangement, prevent that simultaneously extraneous dust, silt, sewage etc. from entering piping inside.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are:
1, the structure of sealing circle has kept the advantage of former rectangular cross-section seal ring, does not bring into play at the sealing coil structures under the situation of its design function, still can keep the function of former design rectangular seal, and sealability is reliable.
2, deform or during situation such as fastening piece is loosening,, form new sealing at the position, slit of seal body setting at the sealing dual face, realize automatic sealing compensation by the pressure effect of sealing gas; And the design of adopting the double slit crack can further be avoided losing efficacy because of the selfsealings that the mistake assembling causes.
3, the setting of seal body upperlip face seal muscle can be done further " redundancy " compensation to the seal action of seal ring.
4, because rubber is the incompressible material of volume basically, in working order down, seal ring by compression, radially can become big, thereby can produce the power of necessarily holding tightly to the center sealed pipe, in this case, may the importing of sealed gas be exerted an influence, can not import to preferably in the slit on lower floor lip limit.And the setting of gas guide groove has guaranteed that then the lip limit of top and bottom can be opened smoothly, and sealed gas air enters the seal action that is brought into normal play in the upperlip limit, prevents to sew.
Description of drawings
Fig. 1 is a vertical section structural representation of the present utility model.
Fig. 2 installs correctly or installment state schematic representation of the present utility model when not producing the gap.
Fig. 3 installs incorrect or installment state schematic representation of the present utility model when producing the gap.
Fig. 4 is an A portion enlarged view among Fig. 3.
Mark among the figure: 1 is the seal ring main body, and 2 is the slit, and 3 is through-hole wall, and 4 is sealed muscle, and 5 is gas guide groove.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of seal ring, comprise seal ring main body 1, described seal ring main body 1 is provided with two and is parallel to each other and respectively near the slit 2 of seal ring main body labial surface about in the of 1, described slit 2 extends to seal ring main body 1 inside by the through-hole wall 3 of seal ring main body 1, be provided with four gas guide grooves 5 that are used to be communicated with two slits 2 between the through-hole wall of described seal ring main body 1, two slits 2, described four gas guide grooves 5 are evenly distributed on the same circumference; Be provided with the sealed muscle 4 of projection laterally at the inner ring of the labial surface up and down place of described seal ring main body 1, the vertical cross-section of described seal ring main body 1 is the E type.
Be to install correctly when flange as shown in Figure 2, when satisfying requiring of designing, install, safeguard, function of the present utility model is identical with the function of former design rectangular cross-section seal ring; Be when installing incorrect or clamping bolt taking place when loosening shown in Fig. 3 and 4, flange links the generation gap, pressure air enters the upper lip slit of seal ring and enters the lower lip slit through gas guide groove, open on two lip limits about making, expansion deformation takes place, form new sealing at the sealing off gap position, thereby realize automatic compensation effect.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. seal ring, comprise seal ring main body (1), it is characterized in that: described seal ring main body (1) is provided with at least one slit (2), and described slit (2) extend to seal ring main body (1) inside by the through-hole wall (3) of seal ring main body (1).
2. seal ring according to claim 1 is characterized in that: be provided with the sealed muscle (4) of projection laterally at the inner ring of the labial surface up and down place of described seal ring main body (1).
3. seal ring according to claim 1 and 2, it is characterized in that: described seal ring main body (1) is provided with two slits (2), is provided with at least one gas guide groove (5) that is used to be communicated with two slits (2) between the through-hole wall of described seal ring main body (1), two slits (2).
4. seal ring according to claim 3 is characterized in that: the vertical cross-section of described seal ring main body (1) is the E type.
5. seal ring according to claim 4 is characterized in that: described two slits (2) are parallel to each other and respectively near the labial surface up and down of seal ring main body (1).
6. seal ring according to claim 4 is characterized in that: described gas guide groove (5) is evenly distributed on the same circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120050449 CN201964068U (en) | 2011-03-01 | 2011-03-01 | Seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120050449 CN201964068U (en) | 2011-03-01 | 2011-03-01 | Seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964068U true CN201964068U (en) | 2011-09-07 |
Family
ID=44526607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120050449 Expired - Lifetime CN201964068U (en) | 2011-03-01 | 2011-03-01 | Seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201964068U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305321A (en) * | 2011-09-27 | 2012-01-04 | 南车长江车辆有限公司 | Flange seal ring |
| CN111963797A (en) * | 2020-08-28 | 2020-11-20 | 眉山中车制动科技股份有限公司 | Structure and method for ensuring active sealing of E-shaped sealing ring of railway wagon |
| CN115059816A (en) * | 2022-06-02 | 2022-09-16 | 眉山中车制动科技股份有限公司 | Active sealing structure of E-shaped sealing ring and sealing method thereof |
-
2011
- 2011-03-01 CN CN 201120050449 patent/CN201964068U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305321A (en) * | 2011-09-27 | 2012-01-04 | 南车长江车辆有限公司 | Flange seal ring |
| CN111963797A (en) * | 2020-08-28 | 2020-11-20 | 眉山中车制动科技股份有限公司 | Structure and method for ensuring active sealing of E-shaped sealing ring of railway wagon |
| CN115059816A (en) * | 2022-06-02 | 2022-09-16 | 眉山中车制动科技股份有限公司 | Active sealing structure of E-shaped sealing ring and sealing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee before: Sichuan Brake Science and Technology Co. Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |