CN205226699U - Anti -loosening clamp ring - Google Patents
Anti -loosening clamp ring Download PDFInfo
- Publication number
- CN205226699U CN205226699U CN201520829151.8U CN201520829151U CN205226699U CN 205226699 U CN205226699 U CN 205226699U CN 201520829151 U CN201520829151 U CN 201520829151U CN 205226699 U CN205226699 U CN 205226699U
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- Prior art keywords
- snap ring
- locking snap
- inner edge
- breach
- seal ring
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Abstract
The utility model provides an anti -loosening clamp ring. The utility model discloses an anti -loosening clamp ring sets up and initiatively seal during flange seal encloses in that E shape is two -sided, anti -loosening clamp ring's outer fringe card is established in the cyclic annular lip limit gap of sealing washer, just anti -loosening clamp ring's inner edge diameter is greater than the internal diameter of sealing washer, anti -loosening clamp ring's inner edge is provided with the breach, the position of breach with the air guide trench of sealing washer is put correspondingly. The utility model discloses can prevent that two -sided two the lip limit gaps of initiatively seal up the flange seal circle of present E shape from taking place sunken adhesion under the circumstances lasting the pressurized or be heated etc. Cause the sealing washer to lose the divulge a secret emergence of a function circumstances of leak protection to the driving safety of freight train has been improved.
Description
Technical field
The utility model relates to seal for pipe joints field, particularly relates to a kind of locking snap ring.
Background technique
Pneumostop joint seal of flanges technology being applied to railway freight-car air pipe line braking pipe arrangement has the history of more than two decades, achieves and seals the static air pressure of pneumatic pipeline, achieve good effect.
In recent years, the two-sided realizing active sealing flange seal ring of E shape was widely used in the sealing of railway freight-car air pipe line braking pipe arrangement.Fig. 1 is the structural representation of the two-sided realizing active sealing flange seal ring of existing E shape, Fig. 2 is the A-A generalized section in Fig. 1, as depicted in figs. 1 and 2, on the basis of original rectangular cross-section flange seal ring 100, add the protruding two-sided lip seal layer 200 of bilateral, respectively define a lip side seam gap 400 between the lip seal layer 200 of seal ring 100 and both sides, and cylinder locating face is provided with the gas guide groove 300 of up/down perforation in seal ring, this gas guide groove 300 is communicated with lip side seam gap 400.Its working principle be when seal ring dual face deform or fastening piece loosen, when can not realize conventional sealing, sealing circle can will be introduced in the lip side seam gap 400 of lip seal layer 200 by gas guide groove 300 by sealing gas, the lip limit of lip seal layer 200 is opened, form new sealing, realize automatic-sealed to compensate, change passive seal is realizing active sealing.
But, because the two-sided realizing active sealing flange seal ring of E shape adopts nitrile butadiene rubber to make usually, often there is aging conditions to occur.Ageing of rubber easily causes two lip side seam gaps of seal ring to occur depression adhesion phenomenon.The two-sided lip seal layer of bilateral of the E shape two-sided realizing active sealing flange seal ring after adhesion can lose leakproof leakage seal function, affects the traffic safety of lorry.
Model utility content
The utility model provides a kind of locking snap ring, with two the lip side seam gaps solving the two-sided realizing active sealing flange seal ring of existing E shape when ageing of rubber, the problem that depression adhesion causes seal ring to lose efficacy occurs.
The utility model provides a kind of locking snap ring, comprising:
A kind of locking snap ring, be arranged in the two-sided realizing active sealing flange seal ring of E shape, the outer rim of locking snap ring is fastened in the annular lip side seam gap of seal ring, and the inner edge diameter of locking snap ring is greater than the internal diameter of seal ring, the inner edge of locking snap ring is provided with breach, and the position of breach is corresponding with the gas guide groove position of seal ring.
Further, be provided with can to the contact be located at outside flanged pipe in the inner edge of locking snap ring;
Locking snap ring described above, its contact is the projection on locking snap ring inner edge;
Further, projection is positioned at the connecting part of gap edge and locking snap ring inner edge;
Locking snap ring described above, the shape of breach and the shape of cross section of gas guide groove match;
Locking snap ring described above, the area of breach is greater than the cross sectional area of gas guide groove;
Locking snap ring described above, locking snap ring is the locking snap ring of metal or the locking snap ring of nylon.
The locking snap ring that the utility model provides, be arranged in the two-sided realizing active sealing flange seal ring of E shape, the outer rim of locking snap ring is fastened in the annular lip side seam gap of seal ring, and the inner edge diameter of locking snap ring is greater than the internal diameter of seal ring, the inner edge of locking snap ring is provided with breach, and the position of breach is corresponding with the gas guide groove position of seal ring.By being provided with the breach corresponding with seal ring gas guide groove position in the inner edge of locking snap ring, ensure that the realizing active sealing function that existing seal ring has, also by the outer rim card of locking snap ring is established in annular lip side seam gap, seal ring annular lip side seam gap is separated by locking snap ring, prevent two lip side seam gaps of the two-sided realizing active sealing flange seal ring of existing E shape, under continuous compression or the situation such as to be heated, depression adhesion occurs, be difficult to restore, cause seal ring to lose the generation of leakproof leakage seal function situation, thus improve the traffic safety of lorry.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-sided realizing active sealing flange seal ring of existing E shape;
Fig. 2 is the A-A generalized section in Fig. 1;
Fig. 3 is arranged on the schematic diagram in seal ring for locking snap ring that the utility model embodiment one provides;
The structural representation of the locking snap ring that Fig. 4 provides for the utility model embodiment two;
Fig. 5 is arranged on the schematic diagram in seal ring for locking snap ring that the utility model embodiment two provides;
The locking snap ring that Fig. 6 provides for the utility model embodiment two in seal ring with partial schematic diagram during tube contacts.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Fig. 3 is arranged on the schematic diagram in seal ring for locking snap ring that the utility model embodiment one provides.Locking snap ring in the present embodiment is used for using with E shape two-sided realizing active sealing flange seal ring is supporting.See Fig. 3, the outer rim of the locking snap ring 1 that the present embodiment provides is fastened in the annular lip side seam gap 2 of described seal ring, and the inner edge diameter of described locking snap ring 1 is greater than the internal diameter of described seal ring, the inner edge of described locking snap ring 1 is provided with breach 3, and the position of described breach 3 is corresponding with the position of described seal ring gas guide groove 4.
Concrete, the outer rim of the locking snap ring 1 in the present embodiment stretches in seal ring, and the side of the inner edge of locking snap ring 1 next-door neighbour's piping.The lip limit sealing layer of two sides of the two-sided realizing active sealing flange seal ring of E shape respectively forms an annular lip side seam gap 2, and the outer rim of locking snap ring 1 is just fastened in this annular lip side seam gap 2, and the internal diameter of locking snap ring 1 is greater than the internal diameter of seal ring.By being established in annular lip side seam gap 2 by locking snap ring 1 card, the both sides of seal ring annular lip side seam gap 2 are spaced, thus prevent gap 2 under pressurized or the situation such as to be heated, there is the phenomenon of depression adhesion.
The inner edge of locking snap ring 1 is provided with breach 3, and the position of breach 3 is corresponding with the position of the gas guide groove 4 of seal ring, so that breach 3 is communicated with gas guide groove 4.When producing gap between pipeline and seal ring, in pipeline, sealing gas can enter breach 3 by gas guide groove 4, thus enters annular lip side seam gap 2, and the lip limit of annular lip side seam gap 2 is opened, form new sealing, thus ensure that the realizing active sealing function that existing seal ring has.
Further, the shape of breach 3 on locking snap ring 1 inner edge and the shape of cross section of gas guide groove 4 match, and as shown in Figure 3, in figure, the width of breach 3 is consistent with the width of gas guide groove 4.Entering the speed of annular lip side seam gap 2 in order to increase sealing gas, improving sealing effect, also the area of breach 3 can be set to the cross-section area being greater than gas guide groove 4, namely be equivalent to the width being set to the width of breach in Fig. 33 to be greater than gas guide groove 4.
The locking snap ring that the present embodiment provides, be arranged in the two-sided realizing active sealing flange seal ring of E shape, the outer rim of locking snap ring is fastened in the annular lip side seam gap of seal ring, and the inner edge diameter of locking snap ring is greater than the internal diameter of seal ring, the inner edge of locking snap ring is provided with breach, and the position of breach is corresponding with the gas guide groove position of seal ring.The present embodiment is by establishing in annular lip side seam gap by the outer rim card of locking snap ring, and the inner edge of locking snap ring is provided with the breach corresponding with seal ring gas guide groove position, not only ensure that the realizing active sealing function that existing seal ring has, also by locking snap ring, seal ring annular lip side seam gap is separated, prevent lip side seam gap, under continuous compression or the situation such as to be heated, depression adhesion occurs, be difficult to restore, cause seal ring to lose leakproof leakage seal function, thus improve the traffic safety of lorry.
Embodiment two
The structural representation of the locking snap ring that Fig. 4 provides for the utility model embodiment two; Fig. 5 is arranged on the schematic diagram in seal ring for locking snap ring that the utility model embodiment two provides; The locking snap ring that Fig. 6 provides for the utility model embodiment two in seal ring with partial schematic diagram during tube contacts.See Fig. 4 ~ Fig. 6, on the basis of above-described embodiment, the inner edge of locking snap ring 1 is also provided with can to the contact 5 be located at outside flanged pipe 6.Contact 5 is for contacting with flanged pipe 6, to increase contact force, prevent seal ring from loosening, thus solve in lorry maintenance process, piping joint position is caused to produce abrasion owing to taking the measure such as sanding, rust cleaning to piping, make the magnitude of interference of seal ring and flanged pipe 6 not enough, cause the problem that sealing effect is not good.
Preferably, see Fig. 6, above-mentioned contact 5 is the projection on locking snap ring 1 inner edge, and projection can be positioned at the connecting part of breach 3 edge and locking snap ring 1 inner edge.In order to increase active force when seal ring contacts with flanged pipe 6, improving sealing effect, a projection can be respectively set at the side of each breach 3, or along the inner edge of locking snap ring 1, evenly projection be set, make pipeline respectively to uniform force.
Further, locking snap ring 1 can be made up of metal or nylon material.When locking snap ring 1 is made for metal, anti-skid design can be set at the outer surface of metal locking snap ring 1, to increase the frictional force with seal ring annular lip side seam gap 2.Also locking snap ring 1 can be pasted onto on the inwall of annular lip side seam gap 2 with binder, thus prevent locking snap ring 1 to be moved in lip side seam gap 2, ensure that the position of the breach 3 on locking snap ring 1 inner edge is corresponding with seal ring gas guide groove 4 all the time.
The present embodiment can to the contact be located at outside flanged pipe by arranging on locking snap ring inner edge, this contact can be protruding, projection is contacted with flanged pipe, thus the active force increased when seal ring contacts with piping, avoid due to lorry overhaul time, the measure such as sanding, rust cleaning is taked to piping, cause piping joint position produce abrasion after, seal ring easily loosens, the problem that sealing effect is not good.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (7)
1. a locking snap ring, be arranged in the two-sided realizing active sealing flange seal ring of E shape, it is characterized in that, the outer rim of described locking snap ring is fastened in the annular lip side seam gap of described seal ring, and the inner edge diameter of described locking snap ring is greater than the internal diameter of described seal ring, the inner edge of described locking snap ring is provided with breach, and the position of described breach is corresponding with the gas guide groove position of described seal ring.
2. locking snap ring according to claim 1, is characterized in that, the inner edge of described locking snap ring is provided with can to the contact be located at outside flanged pipe.
3. locking snap ring according to claim 2, is characterized in that, described contact is the projection on described locking snap ring inner edge.
4. locking snap ring according to claim 3, is characterized in that, described projection is positioned at the connecting part of described gap edge and described locking snap ring inner edge.
5. the locking snap ring according to any one of claim 1-4, is characterized in that, the shape of described breach and the shape of cross section of described gas guide groove match.
6. the locking snap ring according to any one of claim 1-4, is characterized in that, the area of described breach is greater than the cross sectional area of described gas guide groove.
7. the locking snap ring according to any one of claim 1-4, is characterized in that, described locking snap ring is the locking snap ring of metal or the locking snap ring of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829151.8U CN205226699U (en) | 2015-10-23 | 2015-10-23 | Anti -loosening clamp ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829151.8U CN205226699U (en) | 2015-10-23 | 2015-10-23 | Anti -loosening clamp ring |
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| Publication Number | Publication Date |
|---|---|
| CN205226699U true CN205226699U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520829151.8U Active CN205226699U (en) | 2015-10-23 | 2015-10-23 | Anti -loosening clamp ring |
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| CN (1) | CN205226699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-10-23 CN CN201520829151.8U patent/CN205226699U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |