CN216923179U - Railway freight car brake pipe quick-mounting joint sealing ring - Google Patents
Railway freight car brake pipe quick-mounting joint sealing ring Download PDFInfo
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- CN216923179U CN216923179U CN202220127729.5U CN202220127729U CN216923179U CN 216923179 U CN216923179 U CN 216923179U CN 202220127729 U CN202220127729 U CN 202220127729U CN 216923179 U CN216923179 U CN 216923179U
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Abstract
The utility model discloses a quick-assembly joint sealing ring for a railway freight car brake pipeline, wherein the cross section of the sealing ring is in a quadrangular quincuncial shape or a tadpole shape which is obliquely arranged; when the cross section of the sealing ring is in a quincunx shape, the cross section of the sealing ring comprises a first upper end surface and a first lower end surface, the first upper end surface is composed of a first convex surface, a first concave surface and a second convex surface, and the first lower end surface is composed of a third convex surface, a second concave surface and a fourth convex surface; when the cross section of the sealing ring is in a tadpole shape arranged obliquely, the cross section of the sealing ring comprises a second upper end face, an outer peripheral face, a second lower end face and an inner peripheral face which are connected, the inner peripheral face is composed of a fifth convex face, the outer peripheral face is composed of a sixth convex face, the second upper end face is composed of a plane, the second lower end face is composed of a seventh convex face, and the seventh convex face protrudes towards the axis direction of the sealing ring. The quick connector sealing ring for the brake pipeline of the railway wagon improves the sealing performance of the quick connector for the brake pipeline of the railway wagon.
Description
Technical Field
The utility model relates to the technical field of railway wagon brake pipeline sealing, in particular to a railway wagon brake pipeline quick connector sealing ring.
Background
At present, automatic air brakes are adopted on vehicles in China, and the change of compressed air pressure in a brake pipe is controlled to realize the corresponding action of operating the brakes of various vehicles of a train. The relationship between the braking and relieving action of the automatic air brake and the change of the pressure in the brake pipeline is that the brake pipe brakes when the pressure is reduced and relieves when the pressure is increased. When the train is in a car coupler separation accident or pulls the emergency brake valve, the pressure in the brake pipe is reduced, and the whole train can automatically generate a braking effect to stop. When the train normally runs, the stability of the air pressure in the vehicle braking system needs to be ensured, and the air leakage is prevented, so that a large amount of sealing materials are used for the vehicle braking pipeline. However, when the brake pipe of the vehicle is locally leaked seriously and the wind pressure is unstable, the inconsistency between the braking and the relieving of the front and the rear vehicles can cause serious accidents such as derailment of the vehicle, especially in winter with low temperature, so the sealing effect of the sealing materials directly influences the driving safety of the railway freight car.
The sealing reliability of the railway wagon brake pipeline is greatly influenced by the connecting sealing reliability of the quick coupler, the railway wagon application environment in China is severe, the brake pipeline sealing ring is required to normally work at the temperature of-50-70 ℃, part of lines still face the working condition of a unfreezing warehouse when being applied in winter, and the lines need to endure at least 3 hours at the temperature of 110 ℃, when the O-shaped ring in the prior art is matched with the existing quick coupler of the railway wagon brake pipeline for use, the O-shaped ring cannot be well attached to a pipe fitting, the axial sealing effect is poor, and therefore the sealing performance of the railway wagon brake pipeline quick coupler needs to be further improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a sealing ring for a quick coupler of a brake pipeline of a railway wagon, so as to improve the sealing performance of the quick coupler of the brake pipeline of the railway wagon.
Based on the aim, the utility model provides a quick connector sealing ring for a railway freight car brake pipeline, wherein the cross section of the sealing ring is in a quadrangular quincuncial shape or a tadpole shape which is obliquely arranged; when the cross section of the sealing ring is in a four-corner quincuncial shape, the cross section of the sealing ring comprises a first upper end surface and a first lower end surface, the first upper end surface is composed of a first convex surface, a first concave surface and a second convex surface which are sequentially connected, the first lower end surface is composed of a third convex surface, a second concave surface and a fourth convex surface which are sequentially connected, and the first convex surface, the second convex surface, the third convex surface and the fourth convex surface are respectively positioned at four vertex angles of the four-corner quincuncial sealing ring; when the cross-sectional shape of sealing washer is the tadpole shape that the slope set up, the cross-section of sealing washer is including second up end, outer peripheral face, second lower terminal surface and the inner peripheral surface that is connected, the inner peripheral surface comprises fifth convex surface and the inclined plane that is connected, the outer peripheral face comprises the sixth convex surface, the second up end comprises the plane, terminal surface comprises the seventh convex surface under the second, just the seventh convex surface is towards the axis direction arch of sealing washer, the one end on inclined plane with the fifth convex surface is connected, the other end on inclined plane extend to with the seventh convex surface is connected, planar one end with the fifth convex surface is connected, the planar other end with the sixth convex surface is connected.
Optionally, the inner peripheral surface of the cross section of the four-corner quincunx sealing ring includes a third concave surface, the outer peripheral surface of the cross section of the four-corner quincunx sealing ring includes a fourth concave surface, the first convex surface is a first arc surface, the first concave surface is a second arc surface, the second convex surface is a third arc surface, the third convex surface is a fourth arc surface, the second concave surface is a fifth arc surface, the fourth convex surface is a sixth arc surface, the third concave surface is a seventh arc surface, the fourth concave surface is an eighth arc surface, the first arc surface, the second arc surface, the third arc surface, the seventh arc surface, the fourth arc surface, the fifth arc surface, the sixth arc surface, the eighth arc surface and the first arc surface are sequentially tangent.
Optionally, the cross section of the four-corner quincunx sealing ring further includes a rectangular surface, the center of the rectangular surface and the center of the four-corner quincunx sealing ring are concentrically arranged, and four edges of the rectangular surface are tangent to the second arc surface, the fifth arc surface, the seventh arc surface and the eighth arc surface respectively.
Optionally, the arc radiuses of the first arc surface, the third arc surface, the fourth arc surface and the sixth arc surface are equal and all 0.05mm-5 mm.
Optionally, the width of the rectangular surface is 0.1mm-10mm, and the height of the rectangular surface is 0.1mm-10 mm.
Optionally, the sixth convex surface is formed by a ninth arc surface and a tenth arc surface that are connected, the tenth arc surface with the plane is connected, the seventh convex surface is the eleventh arc surface, the circular arc radius of the eleventh arc surface is 0.05mm-5mm, the circular arc radius of the ninth arc surface is 0.2mm-10mm, the planar width is 0.1mm-5mm, and the height and the width of the tadpole-shaped sealing ring are 0.1mm-20 mm.
Optionally, the sealing ring is made of one of polyurethane, nitrile rubber, silicone rubber and chloroprene rubber.
According to the quick-assembly joint sealing ring for the railway freight car brake pipeline, the cross section of the sealing ring is in a quadrangular quincunx shape or a tadpole shape which is obliquely arranged, when the cross section of the sealing ring is in the quadrangular quincunx shape, the first convex surface, the second convex surface, the third convex surface and the fourth convex surface on the quadrangular quincunx sealing ring can rapidly form a sealing effect with a gasket joint surface and the bottom surface of a through joint body groove respectively, and the sealing effect is a double-layer sealing effect, so that the axial sealing effectiveness of the quick-assembly joint is ensured; when the cross-sectional shape of sealing washer is the tadpole shape of slope setting, the seventh convex surface can play fine packing and sealing effect to the sealed position between the joint body and the pipe fitting, and sixth convex surface and plane are when the pressurized for the sealing washer flows to the pipe fitting surface more easily, thereby great with pipe fitting area of contact, sealed respond well, and then improved the sealing performance of railway freight car brake pipe way quick-attach joint.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the utility model, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a quincunx seal ring in a quick coupler seal ring of a railway freight car brake line according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a quad plum blossom shaped seal ring in a railway freight car brake line quick coupler seal ring in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a usage state of a quincunx seal ring in a quick coupler seal ring of a railway freight car brake pipe according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a schematic structural view of a tadpole-shaped seal ring in the seal ring of the quick coupler for the brake pipeline of the railway freight car according to the embodiment of the utility model;
fig. 6 is a schematic top view of a tadpole-shaped sealing ring in the quick coupler sealing ring for a brake pipeline of a railway freight car according to an embodiment of the present invention;
fig. 7 is a schematic view of a use state of tadpole-shaped sealing rings in the quick connector sealing ring for the brake pipeline of the railway wagon according to the embodiment of the utility model;
fig. 8 is a partial enlarged view of fig. 7 at B.
Description of reference numerals:
1: a seal ring in the shape of a quadrangle quincunx; 2: tadpole-shaped sealing rings;
11: a first convex surface; 12: a first concave surface; 13: a second convex surface; 14: a third convex surface; 15: a second concave surface; 16: a fourth convex surface; 17: a third concave surface; 18: a fourth concave surface;
21: a plane; 22: a seventh convex surface; 23: a sixth convex surface; 24: a fifth convex surface; 25: a ninth arc surface; 26: a tenth arc surface; 27: a bevel.
Detailed Description
The present invention will be described in detail with reference to examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 8, in the seal ring for the quick connector of the brake pipeline of the railway freight car, the cross section of the seal ring is in a quadrangular quincuncial shape or a tadpole shape which is obliquely arranged; when the cross section of the sealing ring is in a quincunx shape, the cross section of the sealing ring comprises a first upper end surface and a first lower end surface, the first upper end surface is composed of a first convex surface 11, a first concave surface 12 and a second convex surface 13 which are sequentially connected, the first lower end surface is composed of a third convex surface 14, a second concave surface 15 and a fourth convex surface 16 which are sequentially connected, and the first convex surface 11, the second convex surface 13, the third convex surface 14 and the fourth convex surface 16 are respectively positioned at four top corners of the quincunx sealing ring 1; when the cross sectional shape of sealing washer is the tadpole shape of slope setting, the cross-section of sealing washer is including the second up end that is connected, the outer peripheral face, second lower terminal surface and inner peripheral surface, the inner peripheral surface comprises fifth convex surface 24 and inclined plane 27 that are connected, the outer peripheral face comprises sixth convex surface 23, the second up end comprises plane 21, second lower terminal surface comprises seventh convex surface 22, and seventh convex surface 22 is protruding towards the axis direction of sealing washer, the one end on inclined plane is connected with the fifth convex surface, the other end on inclined plane extends to and is connected with the seventh convex surface, planar one end is connected with the fifth convex surface, the planar other end is connected with the sixth convex surface.
According to the quick-assembly joint sealing ring for the brake pipeline of the railway freight car, the cross section of the sealing ring is in a quadrangular quincunx shape or a tadpole shape which is obliquely arranged, when the cross section of the sealing ring is in the quadrangular quincunx shape, the first convex surface 11, the second convex surface 13, the third convex surface 14 and the fourth convex surface 16 on the quadrangular quincunx-shaped sealing ring 1 can rapidly form a sealing effect with a gasket joint surface and the bottom surface of a through joint body groove respectively, and the sealing effect is a double-layer sealing effect, so that the axial sealing effectiveness of the quick-assembly joint is ensured; when the cross-sectional shape of the sealing ring is the tadpole shape of the inclined arrangement, the seventh convex surface 22 can play a good role in filling and sealing the sealing position between the joint body and the pipe fitting, and the sixth convex surface 23 and the plane 21 can make the sealing ring flow to the surface of the pipe fitting more easily when being pressed, so that the contact area of the sealing ring and the pipe fitting is larger, the sealing effect is good, and the sealing performance of the railway wagon brake pipeline quick joint is further improved.
As shown in fig. 1, the inner peripheral surface of the cross section of the four-corner quincunx seal ring 1 includes a third concave surface 17, the outer peripheral surface of the cross section of the four-corner quincunx seal ring 1 includes a fourth concave surface 18, the first convex surface 11 is a first arc surface, the first concave surface 12 is a second arc surface, the second convex surface 13 is a third arc surface, the third convex surface 14 is a fourth arc surface, the second concave surface 15 is a fifth arc surface, the fourth convex surface 16 is a sixth arc surface, the third concave surface 17 is a seventh arc surface, the fourth concave surface 18 is an eighth arc surface, the first arc surface, the second arc surface, the third arc surface, the seventh arc surface, the fourth arc surface, the fifth arc surface, the sixth arc surface, the eighth arc surface and the first arc surface are sequentially tangent. In this embodiment, the first arc surface, the third arc surface, the fourth arc surface, and the sixth arc surface can respectively and rapidly form a sealing function with the gasket joint surface and the bottom surface of the groove of the straight joint body, and perform a double-layer sealing function, so that the axial sealing effectiveness of the quick-assembly movable joint is ensured.
As shown in fig. 1, the cross section of the quincunx seal ring 1 further includes a rectangular surface 19, the center of the rectangular surface 19 is concentric with the center of the quincunx seal ring 1, and four edges of the rectangular surface 19 are respectively tangent to the second arc surface, the fifth arc surface, the seventh arc surface, and the eighth arc surface. In the embodiment, the rectangular surface 19 has good dimensional stability and can bear larger bending moment or torque, so that the reliability of axial sealing is ensured, and the sealing performance of the quick-mounting joint of the railway wagon brake pipeline is improved.
In an embodiment of the utility model, the arc radiuses of the first arc surface, the third arc surface, the fourth arc surface and the sixth arc surface are equal and are all 0.05-5 mm, and the sizes can enable the sealing ring to be better attached to the gasket joint surface and the groove bottom surface of the straight-through joint body, so that better sealing is formed, and the sealing performance of the quick joint of the railway freight car brake pipeline is further better improved.
In one embodiment of the utility model, the width of the rectangular surface 19 is 0.1mm-10mm, the height of the rectangular surface 19 is 0.1mm-10mm, and the rectangular surface 19 with the size has better structural stability and can bear larger bending moment or torque, so that the reliability of axial sealing is ensured, and the sealing performance of the quick-mounting joint of the brake pipeline of the railway wagon is better improved.
As shown in fig. 5, the sixth convex surface 23 is composed of a ninth arc surface 25 and a tenth arc surface 26 which are connected, the tenth arc surface 26 is connected with the plane 21, the seventh convex surface 22 is an eleventh arc surface, the arc radius of the eleventh arc surface is 0.05mm to 5mm, the arc radius of the ninth arc surface is 0.2mm to 10mm, the width of the plane 21 is 0.1mm to 5mm, and the height and the width of the tadpole-shaped seal ring 2 are both 0.1mm to 20mm, which should be noted: the arc radius of the tenth arc surface 26 is smaller than that of the ninth arc surface 25. In the embodiment, the tadpole-shaped sealing ring 2 with the size can better fill and seal the sealing part between the joint body and the pipe fitting, the tadpole-shaped sealing ring 2 is higher in height, the tadpole-shaped sealing ring 2 can flow to the surface of the pipe fitting more easily when being pressed, the contact area with the pipe fitting is larger, the sealing effect is good, and the sealing performance of the railway wagon brake pipeline quick joint is further improved better.
In one embodiment of the utility model, the sealing ring is made of one of polyurethane, nitrile rubber, silicon rubber and chloroprene rubber, the material is easy to obtain and cheap, and the production cost of the quick-mounting joint sealing ring of the railway freight car brake pipeline is reduced.
According to the quick-assembly joint sealing ring for the brake pipeline of the railway freight car, the cross section of the sealing ring is in a quadrangular quincunx shape or a tadpole shape which is obliquely arranged, when the cross section of the sealing ring is in the quadrangular quincunx shape, the first convex surface 11, the second convex surface 13, the third convex surface 14 and the fourth convex surface 16 on the quadrangular quincunx-shaped sealing ring 1 can rapidly form a sealing effect with a gasket joint surface and the bottom surface of a through joint body groove respectively, and the sealing effect is a double-layer sealing effect, so that the axial sealing effectiveness of the quick-assembly joint is ensured; when the cross-sectional shape of the sealing ring is the tadpole shape of the inclined arrangement, the seventh convex surface 22 can play a good role in filling and sealing the sealing position between the joint body and the pipe fitting, and the sixth convex surface 23 and the plane 21 can make the sealing ring flow to the surface of the pipe fitting more easily when being pressed, so that the contact area of the sealing ring and the pipe fitting is larger, the sealing effect is good, and the sealing performance of the railway wagon brake pipeline quick joint is further improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The quick-assembly joint sealing ring for the brake pipeline of the railway freight car is characterized in that the cross section of the sealing ring is in a quadrangular quincuncial shape or a tadpole shape which is obliquely arranged;
when the cross section of the sealing ring is in a quincuncial shape with four corners, the cross section of the sealing ring comprises a first upper end surface and a first lower end surface, the first upper end surface is composed of a first convex surface, a first concave surface and a second convex surface which are sequentially connected, the first lower end surface is composed of a third convex surface, a second concave surface and a fourth convex surface which are sequentially connected, and the first convex surface, the second convex surface, the third convex surface and the fourth convex surface are respectively positioned at four vertex angles of the quincuncial sealing ring with four corners;
when the cross-sectional shape of the sealing ring is tadpole shape that the slope set up, the cross-section of sealing ring includes second up end, outer peripheral face, second lower terminal surface and the inner peripheral surface that is connected, the inner peripheral surface comprises fifth convex surface and the inclined plane that is connected, the outer peripheral face comprises the sixth convex surface, the second up end comprises the plane, the second lower terminal surface comprises the seventh convex surface, just the seventh convex surface is towards the axis direction arch of sealing ring, the one end of inclined plane with the fifth convex surface is connected, the other end of inclined plane extend to with the seventh convex surface is connected, planar one end with the fifth convex surface is connected, planar other end with the sixth convex surface is connected.
2. The seal ring for a quick coupler for brake lines of railway freight cars as claimed in claim 1, wherein the inner peripheral surface of the cross-section of the quad-quincunx seal ring comprises a third concave surface, the peripheral surface of the cross section of the four-corner quincuncial sealing ring comprises a fourth concave surface, the first convex surface is a first arc surface, the first concave surface is a second arc surface, the second convex surface is a third arc surface, the third convex surface is a fourth arc surface, the second concave surface is a fifth arc surface, the fourth convex surface is a sixth arc surface, the third concave surface is a seventh arc surface, the fourth concave surface is an eighth arc surface, and the first arc surface, the second arc surface, the third arc surface, the seventh arc surface, the fourth arc surface, the fifth arc surface, the sixth arc surface, the eighth arc surface and the first arc surface are sequentially tangent.
3. The railway freight car brake pipe quick coupler seal ring as claimed in claim 2, wherein the cross section of the quad-quincunx seal ring further comprises a rectangular surface, the center of the rectangular surface is concentric with the center of the quad-quincunx seal ring, and four edges of the rectangular surface are tangent to the second arc surface, the fifth arc surface, the seventh arc surface, and the eighth arc surface, respectively.
4. The seal ring for a quick coupler of a railway freight car brake pipe as defined in claim 3, wherein the first arc surface, the third arc surface, the fourth arc surface, and the sixth arc surface have equal arc radii and are all 0.05mm to 5 mm.
5. The seal ring for a railway freight car brake pipe quick coupler as claimed in claim 4, wherein the width of the rectangular surface is 0.1mm to 10mm, and the height of the rectangular surface is 0.1mm to 10 mm.
6. The railway freight car brake pipe quick coupler seal ring as claimed in claim 1, wherein the sixth convex surface is formed by a ninth arc surface and a tenth arc surface which are connected, the tenth arc surface is connected with the plane, the seventh convex surface is an eleventh arc surface, the arc radius of the eleventh arc surface is 0.05mm to 5mm, the arc radius of the ninth arc surface is 0.2mm to 10mm, the width of the plane is 0.1mm to 5mm, and both the height and the width of the tadpole-shaped seal ring are 0.1mm to 20 mm.
7. The seal ring for the quick coupler of the railway wagon brake pipe as defined in claim 1, wherein the seal ring is made of one of polyurethane, nitrile rubber, silicone rubber and chloroprene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220127729.5U CN216923179U (en) | 2022-01-18 | 2022-01-18 | Railway freight car brake pipe quick-mounting joint sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220127729.5U CN216923179U (en) | 2022-01-18 | 2022-01-18 | Railway freight car brake pipe quick-mounting joint sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216923179U true CN216923179U (en) | 2022-07-08 |
Family
ID=82263780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220127729.5U Active CN216923179U (en) | 2022-01-18 | 2022-01-18 | Railway freight car brake pipe quick-mounting joint sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216923179U (en) |
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2022
- 2022-01-18 CN CN202220127729.5U patent/CN216923179U/en active Active
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