CN211844437U

CN211844437U - Angle cock

Info

Publication number: CN211844437U
Application number: CN201922343427.2U
Authority: CN
Inventors: 尹俊; 李建勇; 牛培长; 张其武
Original assignee: Nanjing Shangwei Rail Technology Co ltd; Anhui Xinjinglong Rail Vehicle Equipment Co ltd
Current assignee: Nanjing Shangwei Rail Technology Co ltd; Anhui Xinjinglong Rail Vehicle Equipment Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-11-03
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a dog-ear cock, includes dog-ear cock main part, sets up the tip loose joint at its tip to and rotate the loose joint bolt of connection in the outside of tip loose joint. The utility model discloses pass through loose joint bolted connection to compressed air pipeline's tip with the tip union. The utility model discloses a twist of outside loose joint bolt connects the rotation that replaces whole dog-ear cock subassembly, realizes connecting fixedly. Especially, it can guarantee through the sealing washer that tip union terminal surface set up that the connection position is sealed, make angle cock in installation or dismantlement in-process, only need the loose joint bolt of swivelling joint end, and need not just like rotatory whole angle cock subassembly as usual, make whole installation or dismantlement all need not too much operating space, construction convenience, and can avoid whole angle cock subassembly rotatory activity in-process to receive the friction, it is damaged to avoid angle cock main part friction, the life of extension angle cock.

Description

Angle cock

Technical Field

The utility model relates to a rail vehicle spare part field especially relates to a dog-ear cock.

Background

The rail vehicle is braked by means of compressed air. Compressed air is provided by an air compressor of the locomotive, and is transmitted to each carriage through a main pipe of the train. The connection or disconnection of compressed air is controlled between each carriage and the main pipe of the train through angle cock. Only when the angle cock is opened, the compressed air can be transmitted to the carriage and sequentially transmitted to the last carriage, so that the smoothness of the main pipe of the train is ensured.

The existing angle cock usually adopts threads screwed to the corresponding pipeline to realize the circulation of compressed gas.

The existing pipeline structure and the thread fixed connection mode need to rotate the whole pipeline in the installation or disassembly process, so that the threads at the end part of the pipeline structure can be screwed down or loosened. Such an installation method requires a larger operation space, and is inconvenient for assembly and construction. In addition, the pipeline is installed to the angle cock in a rotating mode, or in the process of being detached from the angle cock in a rotating mode, the pipeline can touch other parts inevitably, the pipeline and the other parts rub and are damaged, the sealing performance or the mechanical strength of the pipeline is affected, and the stability and the service life of the whole railway vehicle braking system are affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model aims to provide a dog-ear cock. This application is through loose joint structure, can solve the inconvenient, easy wearing and tearing problem of current rail vehicle angle cock installation.

In order to achieve the above object, the utility model provides a dog-ear cock, it includes: a folding angle cock body; the end part movable joint is arranged at the end part of the angle cock main body; a loose joint bolt rotatably provided on an outer periphery of the end loose joint; the end movable joint and the angle cock body are communicated with each other.

Optionally, the angle cock of any above-mentioned, wherein, the outside end of tip union is provided with first seal groove, and the butt has the sealing washer in the first seal groove, one side butt of sealing washer the tip union, the opposite side butt of sealing washer has outer adapter, outer adapter communicates and sets up the tip in compressed air pipeline.

Optionally, in any angle cock, the first sealing groove is an annular groove circumferentially arranged along an outer end of the end union; one side of sealing washer is provided with first bulge along circumference, first bulge with the inner wall looks butt of first seal groove, first bulge seals the terminal surface of tip loose joint circumference.

Optionally, in any angle cock, a second sealing groove is circumferentially arranged at an outer end of the outer tooth joint, and the second sealing groove is an annular groove; and a second bulge is arranged on the other side of the sealing ring along the circumferential direction and is abutted against the inner wall of the second sealing groove, and the second bulge seals the circumferential end face of the outer tooth joint.

Optionally, in any angle plug, a cross-sectional shape of the first sealing groove is different from a cross-sectional shape of the second sealing groove; the cross-sectional shape of the first protrusion of the seal ring is different from the cross-sectional shape of the second protrusion.

Optionally, in the angle plug door, a cross section of the first sealing groove and a cross section of the second sealing groove are rectangular or arc-shaped; the cross section of the first bulge and the cross section of the second bulge are rectangular or arc-shaped, and the sizes of the cross sections of the first sealing groove and the second sealing groove are matched with those of the first sealing groove and the second sealing groove.

Optionally, in the angle cock, a guide protrusion extending outward in the axial direction of the end union is further disposed on the inner side of the first seal groove; the inner side of the second sealing groove is also provided with a limiting bulge which extends inwards along the radial direction of the outer tooth joint; the guide protrusion is close to the inner wall of the outer tooth joint and arranged on the outer side of the end face of the limiting protrusion, the sealing ring is sleeved on the periphery of the guide protrusion, and the sealing ring is abutted between the end movable joint and the outer tooth joint.

Optionally, in the angle cock, a loose joint bolt is further connected to the outer portions of the end loose joint and the outer screwed joint in a threaded manner, and the seal ring is disposed between an inner wall of the loose joint bolt, the end loose joint and the outer screwed joint.

Optionally, the angle cock is characterized in that the angle cock body is welded to the end union or integrally formed with the end union.

Optionally, the angle cock is provided with a first end and a second end, wherein the first end is connected with the second end through a hinge.

Compared with the prior art, the utility model has the following technical effects:

1. the utility model provides a dog-ear cock, it passes through loose joint bolted connection to compressed air pipeline's tip with the tip union. The utility model discloses a twist of outside loose joint bolt connects the rotation that replaces whole dog-ear cock subassembly, realizes connecting fixedly. Especially, it can guarantee through the sealing washer that tip union terminal surface set up that the connection position is sealed, make angle cock in installation or dismantlement in-process, only need the loose joint bolt of swivelling joint end, and need not just like rotatory whole angle cock subassembly as usual, make whole installation or dismantlement all need not too much operating space, construction convenience, and can avoid whole angle cock subassembly rotatory activity in-process to receive the friction, avoid its surface friction damaged, the life of extension angle cock.

2. Further, for the sealed that the terminal surface can be even between guaranteeing tip loose joint and the outer tooth joint, the utility model discloses set up the seal groove of different cross sectional shapes at the circumference of tip loose joint and the link of the outer tooth structure of opposite side respectively. The two side surfaces of the sealing ring are respectively provided with bulges with different cross-sectional shapes corresponding to the sealing grooves on the two sides. Therefore, the rectangular bulge part can be tightly pressed against the sealing groove with the rectangular section to ensure the sealing effect, and the arc-shaped bulge part can provide guidance for the sealing groove with the other side corresponding to the arc-shaped section, so that the assembly is convenient.

3. The sealing ring is further provided with a guide bulge which extends outwards along the axial direction of the end movable joint on the inner side of the first sealing groove; and a limiting bulge which extends inwards along the radial direction of the outer tooth joint is arranged on the inner side of the second sealing groove. From this, the protruding lateral wall of direction gets into outer tooth joint tip along the inner wall surface of outer tooth joint, and the terminal surface outside to spacing arch of butt in the suitable degree of depth. Therefore, the sealing ring which is arranged on the periphery of the guide bulge and is abutted between the end part movable joint and the outer tooth joint is kept to be properly extruded, the sealing ring cannot be deformed and damaged due to overlarge extrusion force, cannot be completely loosened and lose the sealing, and cannot be damaged due to unilateral extrusion caused by the inclined acting force in the screwing process of the movable joint bolt.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention for the purpose of explanation and not limitation of the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the angle cock according to the present invention

FIG. 2 is a schematic view of the end union of the angle cock of the present invention in a sealed state;

fig. 3 is a schematic view of the end union of the angle cock of the present invention in a conducting state.

In the drawings, 1 denotes a folding angle cock main body; 2 represents an end union; 21 denotes a first seal groove; 3 represents an external adapter; 31 denotes a second seal groove; external threads 32; 4 denotes a loose joint bolt; 41 denotes a screw thread; 42 denotes a connecting portion; 5 denotes a seal ring; 51 denotes a first projection; and 52 denotes a second projection.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

The meaning of "and/or" in the present invention means that they exist individually or both at the same time.

The meaning of "inside and outside" in the utility model refers to that the direction of the inside of the combined cock is inside and outside, otherwise, relative to the folding cock itself; and not to the specific limitations of the device mechanism of the present invention.

The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.

The utility model provides a dog-ear cock, it is shown with reference to figure 1, it includes:

the angle cock body 1 is internally provided with a valve body part for controlling the circulation or the shutoff of compressed gas;

an end movable joint 2 arranged at the end of the angle cock body 1, in particular at the end connected with a compressed air pipeline in the angle cock;

a loose joint bolt 4 rotatably provided on the outer periphery of the end loose joint;

wherein, the end part movable joint 2 and the angle cock body 1 are communicated with each other.

From this, install the utility model discloses a during dog-ear cock, as long as aim at the compressed air pipeline tip of treating the installation with its tip union, aim at corresponding outer adapter that this tip set up, through will surround on the loose joint bolt that the tip union outside set up connects to outer adapter outer wall surface assorted screw thread, can with tip union and the inseparable butt of outer adapter, realize the sealing connection between the pipeline, guarantee that the inside air current of pipeline seals the control that realizes switching on or the off-state to compressed air.

For further guaranteeing pipeline inside seal effect, the utility model discloses still can be further the outside end of tip union 2 is provided with first seal groove 21, and the butt has sealing washer 5 in the first seal groove 21, one side butt of sealing washer 5 tip union 2, the opposite side butt of sealing washer 5 has outer tooth to connect 3, outer tooth connects 3 intercommunication and sets up the tip at compressed air pipeline, realizes sealedly.

As shown in fig. 2 and 3, the first sealing groove 21 is an annular groove circumferentially disposed along an outer end of the end union 2;

a first bulge 51 is arranged on one side of the sealing ring 5 along the circumferential direction, the first bulge 51 is abutted against the inner wall of the first sealing groove 21, and the first bulge 51 seals the circumferential end face of the end movable joint 2;

the second sealing groove can be similarly arranged as an annular groove arranged at the end part of the outer tooth joint 3 along the circumferential direction;

the other side of the sealing ring 5 is provided with a second bulge 52 along the circumferential direction, the second bulge 52 is abutted against the inner wall of the second sealing groove 31, and the second bulge 52 seals the circumferential end face of the outer adapter 3.

Thus, the seal ring can be tightly abutted between the end part movable joint 2, the outer tooth joint 3 and the movable joint bolt 4 to provide sealing for the end part movable joint and the outer tooth joint.

In order to guarantee that rail vehicle operation in-process, the sealing washer receives the environmental impact expend with heat and contract with cold deformation can not influence sealed effect, the utility model discloses in, can further set up the cross sectional shape of first seal groove 51 different with the cross sectional shape of second seal groove 41 to with this supporting setting the cross sectional shape of the first bulge 51 of sealing washer 5 is different with the cross sectional shape of second bulge 52.

For example, in a more preferred implementation, referring to fig. 3, a cross section of the first seal groove 21 and a cross section of the second seal groove 31 may be rectangular or arc; the cross section of the first protrusion 51 and the cross section of the second protrusion 52 are rectangular or arc-shaped and matched with the cross section of the first seal groove 21 and the cross section of the second seal groove 31. Therefore, the arc-shaped cross section of the second protruding part can be matched with the second sealing groove in the assembling process, and guidance is provided for the sealing ring. And the bulge of rectangle, because it has the right angle, the right angle part is heated the expansion can be abundant to seal groove inner wall both sides butt, guarantees sealed degree.

For further facilitating the sealing assembly, referring to fig. 2, a guide protrusion extending outward in the axial direction of the end union 2 is further provided on the inner side of the first sealing groove 21;

the inner side of the second sealing groove 31 is also provided with a limiting bulge extending inwards along the radial direction of the outer tooth joint 3;

from this, the direction arch is pressed close to outer adapter 3's inner wall, gets into inside from outer adapter's the outside gradually, until reaching spacing bellied terminal surface outside, by spacing protruding butt, restriction its degree of depth that stretches into outer adapter inside. The sealing ring 5 is sleeved on the periphery of the guide protrusion, and the sealing ring 5 is abutted between the end part movable joint 2 and the outer tooth joint 3. Because spacing protruding butt direction protruding terminal surface, the restriction direction arch stretches into the degree of depth that outer tooth connects, the utility model discloses can also further avoid the loose joint bolt to rotate too tightly, excessively extrude the sealing washer and lead to the sealing washer pressurized to break and warp the problem of losing the leakproofness.

In a more specific implementation manner, the hinge bolt 4 for connecting the external thread joint, which is arranged at the end of the angle cock, may be arranged outside the end part hinge joint 2 and the external thread joint 3. The loose joint bolt 4 may in particular be provided with a straight side facing the outer thread joint and an inwardly tapering connecting portion 42 on the side facing the end loose joint. The inner wall butt tip loose joint of connecting portion 42, the straight inner wall of opposite side set up screw thread 41, and the screw thread is connected with the outer thread 32 meshing of outer thread surface, and connecting portion 42 extrudees the outside loose joint direction of tip loose joint, sealing washer 5 sets up between the inner wall of loose joint bolt 4, tip loose joint 2, outer loose joint 3, guarantees that two connect the sealing washer in the middle of closely the butt, realizes sealedly.

In order to ensure the mechanical strength of the connection position between the angle cock and the end part movable joint, the end part movable joint 2 can be fixed by welding, integral forming or the like, or the end part movable joint 2 can be connected by the thread at the end part of the angle cock. The mechanical strength of the connecting part between the angle cock and the end movable joint can be increased by the connecting mode, the angle cock and the end movable joint are convenient to be connected and fixed with the end movable joint 2 made of metal materials, and the tight abutting degree between the angle cock and the external tooth joint structure of another compressed air pipeline is ensured by enough mechanical strength.

Consider that dog-ear cock has both ends, and compressed air pipeline need be connected respectively at both ends, consequently, the utility model discloses can be as required, will tip union 2 sets up a side end or both sides tip of dog-ear cock main part also can set up outer tooth joint at a side end of dog-ear cock, realize with outside compressed air pipeline on the sealing connection between the tip union. The joint structure and the setting direction of the joint can be adjusted according to actual requirements.

Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A folding angle plug comprising:

a folding angle cock body (1);

it is characterized by also comprising:

the end part movable joint (2) is arranged at the end part of the angle cock main body (1);

a loose joint bolt (4) rotatably provided on the outer periphery of the end loose joint;

the end part movable joint (2) and the angle cock body (1) are communicated with each other.

2. The angle cock according to claim 1, characterized in that the outer end of the end part movable joint (2) is provided with a first sealing groove (21), a sealing ring (5) is abutted in the first sealing groove (21), one side of the sealing ring (5) is abutted on the end part movable joint (2), the other side of the sealing ring (5) is abutted on an outer tooth joint (3), and the outer tooth joint (3) is communicated and arranged at the end part of a compressed air pipeline.

3. The angle cock as claimed in claim 2, characterized in that the first sealing groove (21) is an annular groove provided circumferentially along the outer end of the end union (2);

one side of sealing washer (5) is provided with first bulge (51) along circumference, first bulge (51) with the inner wall looks butt of first seal groove (21), first bulge (51) seal the terminal surface of tip loose joint (2) circumference.

4. The angle cock as claimed in claim 2, characterized in that the outer end of the outer adapter (3) is provided with a second sealing groove (31) along the circumferential direction, the second sealing groove (31) is an annular groove;

and a second bulge (52) is arranged on the other side of the sealing ring (5) along the circumferential direction, the second bulge (52) is abutted to the inner wall of the second sealing groove (31), and the second bulge (52) seals the circumferential end face of the outer tooth joint (3).

5. A folding angle plug according to claim 4, characterized in that the cross-sectional shape of the first sealing groove (21) differs from the cross-sectional shape of the second sealing groove (31);

the cross-sectional shape of the first protrusion (51) of the seal ring (5) is different from the cross-sectional shape of the second protrusion (52).

6. The angle plug according to claim 5, characterized in that the cross section of the first sealing groove (21) and the cross section of the second sealing groove (31) are rectangular or arc-shaped;

the cross section of the first bulge (51) and the cross section of the second bulge (52) are rectangular or arc-shaped and are matched with the cross section of the first sealing groove (21) and the cross section of the second sealing groove (31).

7. The angle cock as claimed in claim 6, characterized in that the first sealing groove (21) is further provided on its inner side with a guide projection extending axially outwards along the end union (2);

the inner side of the second sealing groove (31) is also provided with a limiting bulge which extends inwards along the radial direction of the outer tooth joint (3);

the direction arch is pressed close to the inner wall setting of outer dental union (3) is in the spacing bellied terminal surface outside, sealing washer (5) cover is in the bellied periphery of direction, sealing washer (5) butt is in between tip union (2) and outer dental union (3).

8. Angle cock according to claim 2, characterised in that the outer parts of the end union (2) and the outer adapter (3) are further screwed with a union bolt (4), and the sealing ring (5) is arranged between the inner wall of the union bolt (4), the end union (2) and the outer adapter (3).

9. The angle plug according to claim 1, characterized in that the angle plug body and the end union (2) are welded or integrally formed.

10. Folding angle plug according to claim 9, characterized in that the end union (2) is arranged at one or both side ends of the body of the folding angle plug.