CN221004207U

CN221004207U - Pipe joint structure

Info

Publication number: CN221004207U
Application number: CN202322980637.9U
Authority: CN
Inventors: 费凡; 杨硕; 周建成; 李佳; 安世龙
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-05-24
Anticipated expiration: 2033-11-03

Abstract

The utility model provides a pipe joint structure, comprising: a first tube sleeve; the first convex edge is wound on the periphery of the first pipe sleeve; the second pipe sleeve is in butt joint fit with the first pipe sleeve; a seal ring surrounding and sealing an outer periphery of a joint between the first pipe sleeve and the second pipe sleeve; the hoop member is arranged on the periphery of the sealing ring, and a first groove body for accommodating the sealing ring and a second groove body for accommodating the first convex edge are arranged on the inner wall of the hoop member; the width of the second groove body is larger than that of the first convex edge, so that the angle of the first pipe sleeve relative to the hoop piece can be adjusted. The technical scheme of the utility model effectively solves the problems that the assembly stress at the flange joint is aggravated due to vibration, vehicle body bearing deformation and other reasons when the vehicle in the related technology runs, and leakage faults such as flange deformation, pipeline breakage and the like are easy to occur.

Description

Pipe joint structure

Technical Field

The utility model relates to the technical field of pipe joints, in particular to a pipe joint structure.

Background

At present, an air brake system is mainly adopted in domestic railway freight trains, each train is provided with a train pipe, an air brake device of the train is connected with the train pipe of the train, the locomotive and all the trains are connected into a train, and all the train pipes are connected to form a pipeline penetrating through the whole train. The air brake device of the train pipe and the vehicle is filled with pressure air, and the air pressure of the train pipe is controlled by the locomotive. When the locomotive controls the train pipe to discharge wind and decompress, the vehicle generates braking action, and the brake cylinder charges wind to generate braking force; when the locomotive controls the train pipe to charge air and boost pressure, the vehicle can release, and the brake cylinder exhausts air to eliminate braking force.

In the related art, railway trucks are provided with steel pipelines for storing and transmitting compressed air, and the pipelines are mainly connected by adopting rigid flange joints to form a brake pipe system. The steel pipe is welded and assembled with the joint body, and the flange plate is sleeved on the joint body. The joint body of one end is provided with a sealing groove for placing a sealing ring, and the joint body of the other end is free of the sealing groove. The two flange joints are connected and fastened through bolts, and after the bolts are screwed, the sealing rings are pressed and deformed to play a role in sealing.

However, because of manufacturing tolerances in the connection structures of the vehicle underframe accessories, the pipe crane, the brake pipe and the like, the brake pipe is likely to be deformed and internal stress exists at the flange connection part due to the adoption of strong assembly when the assembly cannot be successfully performed. When the vehicle runs, the stress of the assembly at the flange joint is increased due to vibration, load bearing deformation of the vehicle body and the like, so that leakage faults such as flange deformation, pipeline breakage and the like are easy to occur.

Disclosure of utility model

The utility model mainly aims to provide a pipe joint structure, which solves the problems that the assembly stress at the flange joint is aggravated due to vibration, load bearing deformation of a vehicle body and the like when the vehicle in the related art runs, and leakage faults such as flange deformation, pipeline breakage and the like are easy to occur.

In order to achieve the above object, the present utility model provides a pipe joint structure comprising: a first tube sleeve; the first convex edge is wound on the periphery of the first pipe sleeve; the second pipe sleeve is in butt joint fit with the first pipe sleeve; a seal ring surrounding and sealing an outer periphery of a joint between the first pipe sleeve and the second pipe sleeve; the hoop member is arranged on the periphery of the sealing ring, and a first groove body for accommodating the sealing ring and a second groove body for accommodating the first convex edge are arranged on the inner wall of the hoop member; the width of the second groove body is larger than that of the first convex edge, so that the angle of the first pipe sleeve relative to the hoop piece can be adjusted.

Further, the pipe joint structure further comprises a second convex edge, the second convex edge is wound on the periphery of the second pipe sleeve, a third groove body is further arranged on the inner wall of the hoop, the third groove body is located on one side, away from the second groove body, of the first groove body, the second convex edge is inserted into the third groove body, and the width of the third groove body is larger than that of the second convex edge.

Further, the difference between the width of the first groove body and the width of the first convex edge is between 1mm and 5mm, and/or the difference between the width of the third groove body and the width of the second convex edge is between 1mm and 5 mm.

Further, the sealing ring comprises an annular portion, a first extending portion and a second extending portion, wherein the first extending portion and the second extending portion are located on two sides of the annular portion, extend towards a direction away from the bottom of the first groove body, the first extending portion and the first pipe sleeve are in butt fit, and the second extending portion and the second pipe sleeve are in butt fit.

Further, the first extending portion includes a first inclined section inclined toward a direction away from a center plane of the annular portion perpendicular to an axis thereof, and a first lip connected to an end of the first inclined section away from the annular portion, the first lip extending toward the center plane, a distance between the first lip and a bottom of the first groove body gradually decreasing in a direction from the center plane to the end of the annular portion.

Further, the second extending portion includes a second inclined section inclined toward a direction away from a center plane of the annular portion perpendicular to an axis thereof, and a second lip connected to an end of the second inclined section away from the annular portion, the second lip extending toward the center plane, a distance between the second lip and a bottom of the first groove body gradually decreasing from a center of the annular portion to the end of the annular portion.

Further, the seal ring further includes a boss portion provided on an inner wall of the annular portion.

Further, the staple bolt spare includes the first hoop body and the second hoop body, and the first hoop body sets up with the second hoop body symmetry, and the coupling structure still includes the retaining member, and the retaining member is connected between the first hoop body and the second hoop body.

Further, the pipe joint structure further includes a gasket disposed between the first ferrule and the locking member.

Further, the first pipe sleeve comprises a first sleeve section and a first butt joint section, the first sleeve section is connected with a first external pipeline, the inner diameter of the first sleeve section is larger than that of the first butt joint section, and/or the second pipe sleeve comprises a second sleeve section and a second butt joint section, the second sleeve section is connected with a second external pipeline, and the inner diameter of the second sleeve section is larger than that of the second butt joint section.

By applying the technical scheme of the utility model, the first convex edge is wound on the periphery of the first sleeve, and the second sleeve is in butt joint fit with the first sleeve. The seal surrounds and seals the outer periphery of the junction of the first sleeve and the second sleeve. The staple bolt spare sets up in the periphery of sealing ring, is provided with first cell body and second cell body on the inner wall of staple bolt spare, and the sealing ring sets up in first cell body, and first protruding edge inserts to in the second cell body. Specifically, the width of the second groove body is larger than that of the first convex edge. Through foretell setting, first pipe box and second pipe box are connected with two body that need be connected respectively, and the sealing ring seals the periphery that sets up in the butt joint department of first pipe box and second pipe box, and then realizes the seal to first pipe box and second pipe box. The hoop member can fix the first pipe sleeve, the second pipe sleeve and the sealing ring, so that the whole pipe joint structure is stable. And because the width of the first protruding edge is smaller than the width of the second groove body, the first protruding edge can swing in the second groove body, namely the first pipe sleeve and the second pipe sleeve can swing, so that the angle between the first pipe sleeve and the second pipe sleeve is adjusted, and the first pipe sleeve and the second pipe sleeve can still realize sealing when swinging under the action of the sealing ring. Therefore, the technical scheme of the utility model effectively solves the problems that the assembly stress at the flange connection part is aggravated due to vibration, vehicle body bearing deformation and other reasons when the vehicle in the related technology runs, and leakage faults such as flange deformation, pipeline breakage and the like are easy to occur.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 shows a schematic front view of an embodiment of a pipe joint structure according to the present utility model;

FIG. 2 shows a schematic cross-sectional view of the pipe joint structure of FIG. 1;

FIG. 3 shows a schematic cross-sectional view of the pipe joint structure of FIG. 1 after angular adjustment;

FIG. 4 shows an enlarged view of a portion of the pipe joint structure of FIG. 3 at A after angular adjustment;

FIG. 5 is a schematic perspective view of a first ferrule of the pipe joint structure of FIG. 1;

FIG. 6 shows a schematic cross-sectional view of a seal ring of the pipe joint structure of FIG. 1;

fig. 7 shows a schematic perspective view of a first tube sleeve of the tube joint structure of fig. 1.

Wherein the above figures include the following reference numerals:

10. A first tube sleeve; 11. a first sleeve section; 12. a first docking section; 20. a first flange; 30. a second sleeve; 31. a second sleeve section; 32. a second docking section; 40. a seal ring; 41. an annular portion; 42. a first extension; 421. a first sloped section; 422. a first lip; 43. a second extension; 431. a second sloped section; 432. a second lip; 44. a boss; 50. a hoop member; 51. a first tank body; 52. a second tank body; 53. a third tank; 54. a first hoop body; 55. a second hoop body; 60. a second flange; 70. a locking member; 80. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As shown in fig. 1 to 5, in the present embodiment, the pipe joint structure includes: first sleeve 10, first flange 20, second sleeve 30, sealing ring 40, and anchor ear 50. The first flange 20 is wound around the outer periphery of the first pipe sleeve 10. The second socket 30 is in butt-fit with the first socket 10. The seal ring 40 surrounds and seals the outer periphery of the junction of the first pipe sleeve 10 and the second pipe sleeve 30. The hoop member 50 is disposed on the outer periphery of the seal ring 40, and a first groove 51 for accommodating the seal ring 40 and a second groove 52 for accommodating the first flange 20 are disposed on the inner wall of the hoop member 50. Wherein the width of the second slot 52 is greater than the width of the first flange 20 to provide for an angularly adjustable arrangement of the first sleeve 10 relative to the collar member 50.

By applying the technical scheme of the embodiment, the first flange 20 is wound around the periphery of the first pipe sleeve 10, and the second pipe sleeve 30 is in butt joint with the first pipe sleeve 10. A seal ring 40 is wound around and seals the outer periphery of the junction of the first socket 10 and the second socket 30. The hoop member 50 is arranged on the outer periphery of the sealing ring 40, a first groove body 51 and a second groove body 52 are arranged on the inner wall of the hoop member 50, the sealing ring 40 is arranged in the first groove body 51, and the first flange 20 is inserted into the second groove body 52. Specifically, the width of the second groove 52 is greater than the width of the first flange 20. Through the above arrangement, the first pipe sleeve 10 and the second pipe sleeve 30 are respectively connected with two pipe bodies to be connected, and the sealing ring 40 is arranged on the periphery of the joint of the first pipe sleeve 10 and the second pipe sleeve 30 in a sealing manner, so that the sealing of the first pipe sleeve 10 and the second pipe sleeve 30 is realized. The hoop member 50 can fix the first pipe sleeve 10, the second pipe sleeve 30 and the sealing ring 40, so that the whole pipe joint structure is stable. And since the width of the first flange 20 is smaller than the width of the second groove 52, the first flange 20 can swing in the second groove 52, that is, the first pipe sleeve 10 and the second pipe sleeve 30 can swing, so that the angle between the first pipe sleeve 10 and the second pipe sleeve 30 can be adjusted, and sealing can be realized when the first pipe sleeve 10 and the second pipe sleeve 30 swing under the action of the sealing ring. Therefore, the technical scheme of the embodiment effectively solves the problems that when the vehicle in the related art runs, the stress assembled at the flange connection part is aggravated due to vibration, load bearing deformation of the vehicle body and the like, and leakage faults such as flange deformation, pipeline breakage and the like are easy to occur.

As shown in fig. 1 to 5, in the present embodiment, the pipe joint structure further includes a second flange 60, the second flange 60 is wound around the outer periphery of the second pipe sleeve 30, a third groove 53 is further disposed on the inner wall of the hoop member 50, the third groove 53 is located at one side of the first groove 51 away from the second groove 52, the second flange 60 is inserted into the third groove 53, and the width of the third groove 53 is greater than the width of the second flange 60. The second flange 60 is movable within the third slot 53 to thereby effect adjustment of the angle between the second sleeve 30 and the anchor ear 50. Namely, under the action of the cooperation of the first flange 20 and the second groove 52 and the cooperation of the second flange 60 and the third groove 53, the swinging angle between the first pipe sleeve 10 and the second pipe sleeve 30 can be adjusted, and the adjustable angle is larger.

As shown in fig. 2 to 4, in the present embodiment, the difference between the width of the first groove 51 and the width of the first flange 20 is between 1mm and 5mm, and the difference between the width of the third groove 53 and the width of the second flange 60 is between 1mm and 5 mm. The arrangement can realize adjustment of a certain angle. Specifically, the angle between first sleeve 10 and hoop member 50 is adjusted to a range of between 0 and 5 °, and the angle between second sleeve 30 and hoop member 50 is adjusted to a range of between 0 and 5 °.

As shown in fig. 2 to 4 and fig. 6, in the present embodiment, the seal ring 40 includes an annular portion 41, and first and second extending portions 42 and 43 located on both sides of the annular portion 41, each of the first and second extending portions 42 and 43 extending in a direction away from a groove bottom of the first groove body 51, the first extending portion 42 and the first socket 10 being in abutting engagement, and the second extending portion 43 and the second socket 30 being in abutting engagement. The first extension portion 42 and the second extension portion 43 are respectively in abutting fit with the first pipe sleeve 10 and the second pipe sleeve 30, so that the abutting joint of the first pipe sleeve 10 and the second pipe sleeve 30 can be sealed, and the sealing ring 40 can seal the first pipe sleeve 10 and the second pipe sleeve 30 even if the first pipe sleeve 10 and the second pipe sleeve 30 swing.

As shown in fig. 2 to 4 and fig. 6, in the present embodiment, the first extension portion 42 includes a first inclined section 421 and a first lip 422, the first inclined section 421 is inclined toward a direction away from a center plane of the annular portion 41 perpendicular to an axis thereof, the first lip 422 is connected to an end of the first inclined section 421 away from the annular portion 41, the first lip 422 extends toward the center plane, and a distance between the first lip 422 and a groove bottom of the first groove 51 gradually decreases in a direction from the center plane to the end of the annular portion 41. The above arrangement can further improve the sealing performance.

As shown in fig. 2 to 4 and fig. 6, in the present embodiment, the second extending portion 43 includes a second inclined section 431 and a second lip 432, the second inclined section 431 is inclined toward a direction away from a center plane of the annular portion 41 perpendicular to an axis thereof, the second lip 432 is connected to an end of the second inclined section 431 away from the annular portion 41, the second lip 432 extends toward the center plane, and a distance between the second lip 432 and a groove bottom of the first groove 51 gradually decreases from the center of the annular portion 41 to the end of the annular portion 41. The above arrangement can further improve the sealing performance.

As shown in fig. 2 to 4 and fig. 6, in the present embodiment, the seal ring 40 further includes a boss 44, the boss 44 being provided on the inner wall of the annular portion 41. The protruding portion 44 can abut against the abutting portion of the first pipe sleeve 10 and the second pipe sleeve 30, and thus the sealing effect can be effectively improved.

As shown in fig. 1 to 5, in this embodiment, the hoop member 50 includes a first hoop body 54 and a second hoop body 55, the first hoop body 54 and the second hoop body 55 are symmetrically disposed, and the pipe joint structure further includes a locking member 70, where the locking member 70 is connected between the first hoop body 54 and the second hoop body 55. The arrangement described above can make the locking effect better.

As shown in fig. 1, in this embodiment, the pipe joint structure further includes a gasket 80, and the gasket 80 is disposed between the first ferrule 54 and the locking member 70. Spacer 80 is provided to prevent loosening of retaining member 70.

As shown in fig. 1 to 4 and fig. 7, in the present embodiment, the first pipe sleeve 10 includes a first sleeved section 11 and a first abutting section 12, the first sleeved section 11 is connected with a first external pipe, the inner diameter of the first sleeved section 11 is larger than the inner diameter of the first abutting section 12, the second pipe sleeve 30 includes a second sleeved section 31 and a second abutting section 32, the second sleeved section 31 is connected with the second external pipe, and the inner diameter of the second sleeved section 31 is larger than the inner diameter of the second abutting section 32. The above arrangement can make the connection of the first pipe sleeve 10 and the second pipe sleeve 30 with the first external pipe and the second external pipe more stable.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pipe joint structure, characterized by comprising:

A first tube sleeve (10);

the first convex edge (20) is wound on the periphery of the first pipe sleeve (10);

A second pipe sleeve (30), wherein the second pipe sleeve (30) is in butt fit with the first pipe sleeve (10);

a seal ring (40) surrounding and sealing an outer periphery of a joint between the first pipe sleeve (10) and the second pipe sleeve (30);

The hoop member (50) is arranged on the periphery of the sealing ring (40), and a first groove body (51) for accommodating the sealing ring (40) and a second groove body (52) for accommodating the first convex edge (20) are arranged on the inner wall of the hoop member (50);

The width of the second groove body (52) is larger than that of the first convex edge (20), so that the angle of the first pipe sleeve (10) relative to the hoop (50) can be adjusted.

2. The pipe joint structure according to claim 1, further comprising a second flange (60), wherein the second flange (60) is wound around the periphery of the second pipe sleeve (30), a third groove body (53) is further provided on the inner wall of the hoop member (50), the third groove body (53) is located at one side, away from the second groove body (52), of the first groove body (51), the second flange (60) is inserted into the third groove body (53), and the width of the third groove body (53) is greater than that of the second flange (60).

3. A pipe joint structure according to claim 2, characterized in that the difference between the width of the first groove body (51) and the width of the first flange (20) is between 1mm and 5mm, and/or the difference between the width of the third groove body (53) and the width of the second flange (60) is between 1mm and 5 mm.

4. The pipe joint structure according to claim 1, wherein the seal ring (40) includes an annular portion (41) and first and second extending portions (42, 43) located on both sides of the annular portion (41), the first and second extending portions (42, 43) each extend in a direction away from a groove bottom of the first groove body (51), the first extending portion (42) and the first pipe sleeve (10) are in abutting engagement, and the second extending portion (43) and the second pipe sleeve (30) are in abutting engagement.

5. The pipe joint structure according to claim 4, wherein the first extending portion (42) includes a first inclined section (421) and a first lip (422), the first inclined section (421) being inclined toward the direction away from a center plane of the annular portion (41) perpendicular to an axis thereof, the first lip (422) being connected to an end of the first inclined section (421) away from the annular portion (41), the first lip (422) extending toward the center plane, a distance between the first lip (422) and a groove bottom of the first groove body (51) gradually decreasing in a direction from the center plane to the end of the annular portion (41).

6. The pipe joint structure according to claim 4, wherein the second extension portion (43) includes a second inclined section (431) and a second lip (432), the second inclined section (431) being inclined toward the direction away from a center plane of the annular portion (41) perpendicular to an axis thereof, the second lip (432) being connected to an end of the second inclined section (431) away from the annular portion (41), the second lip (432) extending toward the center plane, a distance between the second lip (432) and a groove bottom of the first groove body (51) gradually decreasing in a direction from a center of the annular portion (41) to the end of the annular portion (41).

7. A pipe joint structure according to claim 4, wherein the seal ring (40) further comprises a boss (44), the boss (44) being provided on an inner wall of the annular portion (41).

8. The pipe joint structure according to claim 1, wherein the anchor ear member (50) includes a first hoop body (54) and a second hoop body (55), the first hoop body (54) and the second hoop body (55) being symmetrically disposed, the pipe joint structure further including a locking member (70), the locking member (70) being connected between the first hoop body (54) and the second hoop body (55).

9. The pipe coupling structure according to claim 8, further comprising a gasket (80), said gasket (80) being disposed between said first ferrule body (54) and said locking member (70).

10. The pipe joint structure according to any one of claims 1 to 9, characterized in that the first pipe sleeve (10) comprises a first sleeved section (11) and a first butt joint section (12), the first sleeved section (11) is connected with a first external pipe, the inner diameter of the first sleeved section (11) is larger than the inner diameter of the first butt joint section (12), and/or the second pipe sleeve (30) comprises a second sleeved section (31) and a second butt joint section (32), the second sleeved section (31) is connected with a second external pipe, and the inner diameter of the second sleeved section (31) is larger than the inner diameter of the second butt joint section (32).