CN216045942U

CN216045942U - Straight-through joint for pneumatic brake system and pneumatic brake system

Info

Publication number: CN216045942U
Application number: CN202122287769.4U
Authority: CN
Inventors: 刘森磊; 封万程; 巨建辉; 冷彪
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-15
Anticipated expiration: 2031-09-22

Abstract

The application relates to a through joint for a pneumatic braking system and the pneumatic braking system, which comprises a first joint and a second joint, wherein the first joint comprises a first end and a second end which are coaxially arranged along the longitudinal direction, the second joint is rotatably sleeved at the second end of the first joint, at least part of the second end is accommodated in the second joint, a first sealing ring is sleeved at the first end, a second sealing ring is sleeved at the second end, and a third sealing ring is sleeved at the second joint. Because two connected connectors can rotate mutually, the relative position of the connecting piece can still be adjusted in real time after the connecting piece is connected. The problem that the angles of two connected pieces cannot be adjusted in real time after a straight joint of a pneumatic braking system is installed in the related art is solved.

Description

Straight-through joint for pneumatic brake system and pneumatic brake system

Technical Field

The application relates to the technical field of pneumatic braking systems, in particular to a straight-through joint for a pneumatic braking system and the pneumatic braking system.

Background

With the development of the pneumatic brake system technology, the connection and sealing between parts derive the technology of the through joint of the pneumatic brake system. At present, an integrated connector with a sealing ring is often used in a pneumatic braking system to realize the connection of two connected pieces in a screwing-in mode, and the fastening of the connecting pieces and a connector is realized through a standby nut. In the structure, after the connecting bodies are assembled into a whole by the connecting pieces, the relative angles of the two connected pieces are fixed, and the two connected pieces cannot be adjusted in real time according to the requirement of the installation angle, so that the installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a through joint for a pneumatic brake system and a pneumatic brake system, which are used for solving the problem in the related art that the angles of two connected pieces cannot be adjusted in real time after the through joint of the pneumatic brake system is installed.

According to one aspect of the present application, there is provided a through-connection for a pneumatic brake system, comprising

A pass-through joint for a pneumatic brake system for connecting components to be connected in the pneumatic brake system, the pass-through joint for a pneumatic brake system comprising:

the first joint comprises a first end and a second end which are coaxially arranged along the longitudinal direction, a first sealing ring is sleeved on the first end, and a plurality of second sealing rings are sleeved on the second end; and

the second joint is rotatably sleeved at the second end, at least part of the second end is contained in the second joint, and a third sealing ring is sleeved on the second joint.

In one embodiment, the first end is provided with a first external thread on an outer surface thereof.

In one embodiment, the second connector is provided with a second external thread on an outer surface thereof.

In one embodiment, the through-joint for a pneumatic brake system further comprises:

the first protrusion is arranged on the first joint, the first protrusion is located between the first end and the second end, and the first sealing ring is attached to the first protrusion.

the second is protruding, locates the second connects and is close to first bellied one end, the third sealing washer with the protruding laminating of second.

In one embodiment, the through-connection for a pneumatic brake system further comprises a snap ring; the second end is far away from the one end of the first bulge and is provided with a lower clamping ring groove, and the clamping ring is sleeved on the lower clamping ring groove.

In one embodiment, an upper snap ring groove is formed in the position, corresponding to the lower snap ring groove, of the inner surface of the second joint; an accommodating cavity is defined by the upper clamping ring groove and the lower clamping ring groove;

the snap ring is elastic element, the snap ring accept in hold the chamber, just the outer lane of snap ring with go up the inner wall butt of snap ring groove.

In one embodiment, a plurality of the second sealing rings are distributed on the second end at intervals.

In one embodiment, the first joint and the second joint are both of an integrally formed structure.

According to another aspect of the present application, there is provided a pneumatic brake system including:

a first to-be-connected component;

a second member to be connected; and

a through-connection for a pneumatic brake system as described in any one of the embodiments above; the first end is connected with the first to-be-connected piece, and the second joint is connected with the second to-be-connected piece.

The straight joint for the pneumatic braking system and the pneumatic braking system comprise a first joint and a second joint, wherein the first joint comprises a first end and a second end which are coaxially arranged along the longitudinal direction, the second joint is rotatably sleeved at the second end of the first joint, at least part of the second end is accommodated in the second joint, a first sealing ring is sleeved at the first end, a second sealing ring is sleeved at the second end, and a third sealing ring is sleeved at the second joint. Because two connected connectors can rotate mutually, the relative position of the connecting piece can still be adjusted in real time after the connecting piece is connected. The problem that the angles of two connected pieces cannot be adjusted in real time after a straight joint of a pneumatic braking system is installed in the related art is solved.

Drawings

FIG. 1 is a block diagram of a pneumatic brake system with a through connection for the pneumatic brake system installed in an embodiment of the present application;

FIG. 2 is a cross-sectional view of a through-connection for a pneumatic brake system in an embodiment of the present application;

FIG. 3 is an elevation view of a through connection for a pneumatic brake system in an embodiment of the present application.

Reference numerals: first joint 1, first end 11, first external screw thread 111, second end 12, lower snap ring groove 121, first sealing washer 13, second sealing washer 14, first 15, the second of waiting to connect the piece 16, second joint 2, third sealing washer 21, second external screw thread 22, go up snap ring groove 23, first arch 3, snap ring 4, second arch 5 of waiting.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As described in the background art, in the current pneumatic brake system, an integrated connector with a sealing ring is often used as a through connector, the connection between two connected pieces is realized in a screw-in manner, and the fastening between the connected pieces and the connector is realized by tightening a nut. In the structure, after the connected pieces are assembled into a whole by the connecting body, the relative angles of the two connected pieces are fixed, and the two connected pieces cannot be adjusted in real time according to the installation angles of the connected pieces, so that the installation is inconvenient. In addition, the sealing ring is positioned between threads, so that the structure is easy to lose efficacy, cause leakage and have the problem of insufficient sealing performance.

Therefore, it is necessary to provide a straight joint with good sealing performance, which is easy to adjust the direction, in order to solve the problems that the straight joint of the pneumatic brake system in the related art cannot be adjusted in real time according to the installation angle of the connected member after installation and the sealing performance of the sealing ring structure is insufficient after installation.

Referring to fig. 1, 2 and 3, fig. 1 is a block diagram illustrating a pneumatic brake system having a through joint for a pneumatic brake system installed therein according to an embodiment of the present invention, fig. 2 is a sectional view illustrating the through joint for the pneumatic brake system according to an embodiment of the present invention, and fig. 3 is a front view illustrating the through joint for the pneumatic brake system according to an embodiment of the present invention.

An embodiment of the present application provides a through joint for a pneumatic brake system, comprising a first joint 1 and a second joint 2. The first joint 1 comprises a first end 11 and a second end 12 which are coaxially arranged with each other along the longitudinal direction, a first sealing ring 13 is sleeved on the first end 11, and a plurality of second sealing rings 14 are sleeved on the second end 12. The second joint 2 is rotatably sleeved on the second end 12, at least a portion of the second end 12 is accommodated in the second joint 2, and a third sealing ring 21 is sleeved on the second joint 2.

In an embodiment of the present application, the first end 11 and the second end 12 are both hollow rotating bodies, and the outer diameter of the end surface of the first end 11 is smaller than that of the end surface of the second end 12. In addition, the second joint 2 is also a hollow rotating body, and the outer diameter of the connecting part of the second joint 2 and the member to be connected is equal to the outer diameter of the connecting part of the first end 11 and the member to be connected.

It can be understood that the second joint 2 is rotatably sleeved on the second end 12, and the second end 12 is at least partially received in the second joint 2, and the second joint 2 can rotate relative to the second end 12 to adjust the relative angle between two connected members connected by the two joints. Meanwhile, the second end 12 is sleeved with a plurality of second sealing rings 14 to ensure the sealing performance of the first joint 1 and the second joint 2 after matching connection so as to prevent gas leakage.

In an embodiment of the present application, a first connecting portion is disposed on an outer surface of the first end 11 for connecting with a member to be connected. Specifically, the first connection portion is a first external thread 111, and the first joint 1 is connected to the to-be-connected member through the first external thread 111 on the outer surface.

Further, a second connecting part is arranged on the outer surface of the second joint 2 and connected with another to-be-connected part. Specifically, the second connecting portion is a second external thread 22, and the second joint 2 is screwed with the second to-be-connected member 16 through the second external thread 22 on the outer surface.

In an embodiment of the present application, the through joint for a pneumatic brake system further includes a first protrusion 3, the first protrusion is disposed on the first joint 1, the first protrusion 3 is located between the first end 11 and the second end 12, and the first sealing ring 13 is attached to the first protrusion 3 to prevent gas leakage between the first joint 1 and a member to be connected.

Preferably, the end surface of the first protrusion 3 near the second end 12 is located at the middle position of the first joint 1, and after installation, the first sealing ring 13 is located at the joint of the first protrusion 3 and the first end 11.

In an embodiment of the present application, the through joint for a pneumatic brake system further includes a second protrusion 5 disposed at an end of the second joint 2 close to the first protrusion 3, and a third sealing ring 21 is attached to the second protrusion 5 to prevent gas leakage between the second joint 2 and a connected member.

Preferably, the second protrusion 5 directly forms one end surface of the second joint 2, and after installation, the third sealing ring 21 is located at a position where the second protrusion 5 is closer to the other end surface of the second joint 2 and is connected to the second joint 2.

In an embodiment of the present application, the through joint for a pneumatic braking system further includes a snap ring 4, a lower snap ring groove 121 is formed at an end of the second end 12 away from the first protrusion 3, and the snap ring 4 is sleeved on the lower snap ring groove 121.

Specifically, when the first joint 1 and the second joint 2 are not assembled to the predetermined positions, the snap ring 4 is sleeved on the lower snap ring groove 121.

In another embodiment of the present application, an upper snap ring groove 23 is formed on the inner surface of the second joint 2 at a position corresponding to the lower snap ring groove 121, and an accommodating cavity is defined by the upper snap ring groove 23 and the lower snap ring groove 121, wherein the snap ring 4 is an elastic element, the snap ring 4 is accommodated in the accommodating cavity, and the outer ring of the snap ring 4 abuts against the inner wall of the upper snap ring groove 23.

Specifically, when the first joint 1 and the second joint 2 are assembled to the predetermined position, that is, the second end 12 is completely accommodated in the second joint 2, the snap ring 4 is simultaneously sleeved on the upper snap ring groove 23 and the lower snap ring groove 121, and the outer ring of the snap ring 4 abuts against the inner wall of the upper snap ring groove.

It can be understood that, when the first joint 1 and the second joint 2 are not assembled to the predetermined position, that is, only part of the second end 12 is accommodated in the second joint 2, the upper snap ring groove 23 and the lower snap ring groove 121 are staggered to form an accommodating cavity, and the snap ring 4 is sleeved in the lower snap ring groove 121. After assembling, first joint 1 and second connect 2 and assemble the preset position, go up snap ring groove 23 and hold the chamber with lower snap ring groove 121 constitutes one, and snap ring 4 holds the volume increase, and 4 openings of snap ring make snap ring 4 overlap simultaneously and locate in snap ring groove 23 and lower snap ring groove 121 to connect 1 and second and connect 2 to carry out spacingly on the axial. And for first joint 1 and second joint 2, do not carry out ascending spacing in circumference, first joint 1 can do the rotary motion for second joint 2, because realize that first joint 1 and second joint 2 and wait that two after the connecting piece is connected can still adjust the angle with waiting the connecting piece.

In one embodiment of the present application, a plurality of second seal rings 14 are spaced apart from one another and distributed on the second end 12.

In another embodiment of the present application, the outer surface of the second end 12 is provided with a plurality of sealing ring mounting grooves spaced apart from each other, the sealing ring mounting grooves are formed at positions 1/5-4/5 of the surface of the second end 12, each second sealing ring 14 is mounted in one sealing ring mounting groove, and the depth of each sealing ring mounting groove is smaller than the diameter of each second sealing ring 14. Thus ensuring the sealing performance after the first and

second joints

1 and 2 are installed to prevent gas from leaking between the first and

second joints

1 and 2.

Preferably, the number of second sealing rings 14 is two.

In another embodiment of the present application, a pneumatic brake system is provided, which includes a first to-be-connected component 15, a second to-be-connected component 16, and the through joint for a pneumatic brake system in any one of the above embodiments, wherein the first end 11 of the first joint 1 is connected with the first to-be-connected component 15, and the second joint 2 is connected with the second to-be-connected component 16. The whole installation is convenient, the connection mode is simple, and the installation back can be adjusted according to two relative angles of the connected piece.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A feedthrough for a pneumatic brake system for connection to a component to be connected in the pneumatic brake system, the feedthrough comprising:

2. The through-connection for a pneumatic brake system according to claim 1, wherein the first end has a first external thread on an outer surface thereof.

3. The through-connection for a pneumatic brake system as set forth in claim 2, wherein said second connection has a second external thread on an outer surface thereof.

4. The through-connection for a pneumatic brake system according to any one of claims 1-3, wherein said through-connection for a pneumatic brake system further comprises:

5. The through-connection for a pneumatic brake system as set forth in claim 4, further including:

6. The through-connection for a pneumatic brake system according to claim 5, wherein said through-connection for a pneumatic brake system further comprises a snap ring;

the second end is far away from the one end of the first bulge and is provided with a lower clamping ring groove, and the clamping ring is sleeved on the lower clamping ring groove.

7. The through-connection for a pneumatic brake system according to claim 6, wherein an upper snap ring groove is formed in the inner surface of the second connection at a position corresponding to the lower snap ring groove; an accommodating cavity is defined by the upper clamping ring groove and the lower clamping ring groove;

8. The through-connection for a pneumatic brake system as set forth in claim 1, wherein a plurality of said second seal rings are spaced apart from one another at said second end.

9. The through-connection for a pneumatic brake system as set forth in claim 1, wherein said first connection and said second connection are each of a unitary construction.

10. A pneumatic brake system, comprising:

a first to-be-connected component;

a second member to be connected; and

a through-connection for a pneumatic brake system as claimed in any one of claims 1 to 9; the first end is connected with the first to-be-connected piece, and the second joint is connected with the second to-be-connected piece.