CN217683751U

CN217683751U - Pipeline quick connector structure

Info

Publication number: CN217683751U
Application number: CN202221449151.1U
Authority: CN
Inventors: 梁延会; 邵磊; 刘璞; 刘勇; 武心恺; 赵婧婧
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-28
Anticipated expiration: 2032-06-10

Abstract

The utility model belongs to the technical field of pipeline connection, a pipeline quick-plugging connector structure is disclosed, which comprises a pipe joint and a joint connecting piece, wherein the outer wall of the pipe joint is provided with a positioning groove, the joint connecting piece comprises a pipe body, a positioning pin, an elastic piece, a stay cord and a plugging block, the pipe body is provided with an accommodating hole, the plugging block is fixedly connected with the pipe body and plugs one end of the accommodating hole, the positioning pin slides in the accommodating hole, the elastic piece is positioned between the positioning pin and the plugging block, one end of the stay cord is fixedly connected with the positioning pin, and the other end sequentially passes through the elastic piece and the plugging block and is positioned outside the pipe body; the pipe joint is inserted in the pipe body, and the elastic piece can drive the positioning pin to be inserted in the positioning groove. The pipeline quick connector structure is convenient to install and disassemble, few in parts, simple in structure and low in cost.

Description

Pipeline quick connector structure

Technical Field

The utility model relates to a tube coupling technical field especially relates to a quick connector structure of pipeline.

Background

The known way of connecting pipes is mainly threaded, by making external threads on the outer wall of one of the coupling and the pipe and internal threads on the inner wall of the other coupling and pipe, the coupling and pipe are screwed together. However, the connection method is troublesome in connection, inconvenient in disassembly and assembly, labor-consuming and time-consuming, and seriously affects the production efficiency, so that the quick connector structure which is convenient to assemble and disassemble is more and more widely used. The quick connector structure in the prior art generally has two kinds, one kind is VOSS quick connector structure, another kind is SAE quick connector structure, however, these two kinds of quick connector structures all inconvenient dismantlements and with high costs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline quick connector structure to solve the inconvenient dismantlement of quick connector structure among the prior art and problem with high costs.

To achieve the purpose, the utility model adopts the following technical proposal:

a quick-connect coupling for a pipeline, comprising:

the outer wall of the pipe joint is provided with a positioning groove;

the joint connecting piece comprises a pipe body, a positioning pin, an elastic piece, a pull rope and a blocking piece, wherein the pipe body is provided with a containing hole, the blocking piece is fixedly connected with the pipe body and blocks one end of the containing hole, the positioning pin slides in the containing hole, the elastic piece is positioned between the positioning pin and the blocking piece, one end of the pull rope is fixedly connected with the positioning pin, and the other end of the pull rope sequentially penetrates through the elastic piece and the blocking piece and is positioned outside the pipe body;

the pipe joint is inserted in the pipe body, and the elastic piece can drive the positioning pin to be inserted in the positioning groove.

As a preferable scheme of the pipeline quick-plugging connector structure, the outer wall of the pipe joint is provided with a limiting bulge, and the limiting bulge can be abutted against the end face, close to the limiting bulge, of the pipe body; when the positioning pin is inserted into the positioning groove, the limiting protrusion is positioned outside the pipe body, and the distance L1 between the limiting protrusion and the end face, close to the limiting protrusion, of the pipe body is smaller than the width L2 of the positioning groove in the axial direction of the pipe joint.

As an optimized scheme of the pipeline quick-plugging connector structure, the outer wall of the pipe joint is provided with a sealing groove, the positioning groove is located between the sealing groove and the limiting protrusion, a sealing ring is embedded in the sealing groove, and the sealing ring is used for sealing a gap between the pipe joint and the pipe body.

As a preferable scheme of the pipeline quick-plugging connector structure, the connector connecting piece further comprises a pull ring, and the pull ring is fixedly connected to the other end of the pull rope.

As a preferable scheme of the pipeline quick-plugging connector structure, the pull ring is made of a soft material.

As a preferable scheme of the above pipeline quick connector structure, one end of the positioning pin facing the positioning groove is provided with a guide surface.

As a preferable scheme of the above pipeline quick-plugging connector structure, the positioning groove is annular, and the positioning groove extends along the circumferential direction of the pipe joint.

As a preferable scheme of the above pipeline quick connector structure, the elastic member is a conical spring, a small end of the conical spring is abutted with the positioning pin, and a large end of the conical spring is abutted with the blocking block.

As a preferable scheme of the above pipeline quick connector structure, the blocking block is in threaded connection with the pipe body.

As a preferable scheme of the above pipeline quick-plugging connector structure, the pipe joint and the pipe body are both made of plastic materials.

The utility model has the advantages that:

the utility model provides a quick connector structure of pipeline, in this quick connector structure of pipeline, the one end of the accommodation hole on sprue and body fixed connection and the shutoff body, the locating pin slides in the accommodation hole, the elastic component is located between locating pin and the sprue, stay cord one end and locating pin fixed connection, the other end passes elastic component and sprue in proper order and is located outside the pipe, when installation coupling and joint connecting piece, insert the body with the coupling, the coupling can earlier the butt locating pin just promote the locating pin to slide and compress the elastic component to the direction that is close to the sprue, the coupling continues to insert the constant head tank and the locating pin of body until the coupling and is located the coplanar, when the constant head tank and the locating pin of coupling are located the coplanar, insert the constant head tank under the spring action of elastic component, accomplish the assembly. When the pipe joint and the joint connecting piece are disassembled, the pull rope is pulled in the direction away from the positioning groove, the pull rope drives the positioning pin to slide in the direction away from the positioning groove, and the pipe joint can be pulled out from the pipe body when the positioning pin is separated from the positioning groove, so that the disassembly is completed. The pipeline quick connector structure is convenient to install and disassemble, few in parts, simple in structure and low in cost.

Drawings

Fig. 1 is a cross-sectional view of a quick connector structure for pipelines according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a quick connector structure for pipelines according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a part of the quick connector structure for pipelines according to an embodiment of the present invention.

In the figure:

1. a pipe joint; 11. a limiting bulge; 12. positioning a groove; 13. a seal ring;

21. a pipe body; 22. positioning pins; 23. an elastic member; 24. blocking; 25. pulling a rope; 26. a pull ring; 221. a guide surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a pipeline quick connector structure, as shown in fig. 1-3, the pipeline quick connector structure comprises a pipe joint 1 and a connector connecting piece, wherein, the outer wall of the pipe joint 1 is provided with a positioning groove 12, the connector connecting piece comprises a pipe body 21, a positioning pin 22, an elastic piece 23, a stay cord 25 and a block 24, the pipe body 21 is provided with an accommodating hole, the block 24 is fixedly connected with the pipe body 21 and blocks one end of the accommodating hole, the positioning pin 22 slides in the accommodating hole, the elastic piece 23 is positioned between the positioning pin 22 and the block 24, one end of the stay cord 25 is fixedly connected with the positioning pin 22, and the other end passes through the elastic piece 23 and the block 24 in sequence and is positioned outside the pipe body 21; the pipe joint 1 is inserted into the pipe body 21, and the elastic element 23 can drive the positioning pin 22 to be inserted into the positioning groove 12.

This quick connector structure of pipeline, when installation coupling 1 and piecing connecting piece, insert coupling 1 into body 21, coupling 1 pushes away locating pin 22 after the locating pin 22 and slides and compress elastic component 23 to the direction that is close to sprue 24, coupling 1 continues to insert body 21 until locating slot 12 and locating pin 22 of coupling 1 are located the coplanar, when the locating slot 12 and the locating pin 22 of coupling 1 are located the coplanar, locating pin 22 inserts locating slot 12 under the spring action of elastic component 23, behind locating pin 22 inserted locating slot 12, coupling 1 can't be relative body 21 along the axial motion of body 21 again, accomplish the assembly. When the pipe joint 1 and the joint connecting piece are disassembled, the pull rope 25 is pulled in the direction far away from the positioning groove 12, the pull rope 25 drives the positioning pin 22 to slide in the direction far away from the positioning groove 12, and the pipe joint 1 can be pulled out from the pipe body 21 when the positioning pin 22 is separated from the positioning groove 12, so that the disassembly is completed. This quick connector structure of pipeline only needs during the installation to insert body 21 with coupling 1, pending locating pin 22 get into constant head tank 12 can, only need stimulate during the dismantlement stay cord 25 make stay cord 25 drive locating pin 22 break away from constant head tank 12, then can extract body 21 with coupling 1 easily, not only easy to assemble, still convenient dismantlement, spare part is few moreover, simple structure, and is with low costs.

Alternatively, the pipe joint 1 and the pipe body 21 are both made of a plastic material. The plastic is low in price, and the cost can be further reduced. Specifically, the pipe joint 1 and the pipe body 21 are both made of PA66/GF20% material.

Optionally, the plug 24 is threaded with the tube 21. The outer wall of the plugging block 24 is provided with an external thread, the inner wall of the accommodating hole is provided with an internal thread, the plugging block 24 is in threaded connection with the pipe body 21 through the internal thread and the external thread, and the plugging block 24 is convenient to mount or dismount in the pipe body 21.

Optionally, the joint connection further comprises a pull ring 26, the pull ring 26 being fixedly connected to the other end of the pull cord 25. The pull ring 26 is located outside the tube body 21 to facilitate pulling the pull rope 25. Optionally, the tab 26 is made of a soft material. The pull ring 26 is prevented from being easily grasped to prevent the positioning pin 22 from being separated from the positioning groove 12 by a worker inadvertently scraping the pull ring 26.

Optionally, the end of the positioning pin 22 facing the positioning slot 12 is provided with a guide surface 221. When the pipe joint 1 is inserted into the pipe body 21, the pipe joint 1 first abuts against the guide surface 221, and the positioning pin 22 slides in a direction away from the pipe joint 1 as the pipe joint 1 continues to be inserted into the pipe body 21 by the guide surface 221, and compresses the elastic member 23. In this embodiment, the guide surface 221 is circular. The radius of the circular arc-shaped guide surface 221 is 10-30mm. In other embodiments, the guide surface 221 may be a plane inclined with respect to the central axis of the pipe body 21.

Alternatively, the positioning groove 12 is ring-shaped, the positioning groove 12 extending in the circumferential direction of the pipe joint 1. After the positioning pin 22 is inserted into the positioning groove 12, the pipe joint 1 cannot move relative to the pipe body 21 in the axial direction of the pipe body 21, but the pipe joint 1 can rotate relative to the pipe body 21 by 360 ° in the circumferential direction of the pipe body 21. The pipe joint 1 can be a right-angle pipe joint 1, after the pipe joint 1 is inserted into the pipe body 21 and locked by the locking pin, the pipe joint 1 can be rotated by 360 degrees, and the position of the pipe joint 1 is adjusted so that the pipe joint 1 is located at a proper position.

Optionally, the outer wall of the pipe joint 1 is provided with a limiting protrusion 11, and the limiting protrusion 11 can be abutted against the end surface of the pipe body 21 close to the limiting protrusion 11; when the positioning pin 22 is inserted into the positioning groove 12, the limiting protrusion 11 is located outside the tube body 21, and a distance L1 between the limiting protrusion 11 and the end surface of the tube body 21 close to the limiting protrusion 11 is smaller than a width L2 of the positioning groove 12 along the axial direction of the tube joint 1. Continue to insert pipe joint 1 to body 21 depths and insert after positioning pin 22 is pegged graft in positioning groove 12, because spacing arch 11 is less than positioning groove 12 along 1 axial width L2 of pipe joint with the terminal surface butt of body 21 with distance L1 between body 21 is close to spacing protruding 11's the terminal surface, pipe joint 1 can not move to body 21 depths again, positioning pin 22 did not break away from positioning groove 12 completely this moment, therefore, prevented when positioning pin 22 pegs graft and continue to insert pipe joint 1 to body 21 depths and insert and make positioning pin 22 break away from positioning groove 12 behind positioning groove 12.

Alternatively, the width of the positioning groove 12 in the axial direction of the pipe joint 1 is larger than the width of the positioning pin 22 in the axial direction of the pipe body 21 to ensure that the positioning pin 22 can be inserted into the positioning groove 12.

Alternatively, the elastic member 23 is a conical spring, a small end of the conical spring abuts against the positioning pin 22, and a large end of the conical spring abuts against the block 24. The area of the small end of the conical spring is smaller than the area of the end face of the positioning pin 22 close to the conical spring. Selecting conical springs with different spring forces according to the pressure requirements in the pipe joint 1 and the pipe body 21, and selecting the conical spring with the large spring force if the pressure requirements in the pipe joint 1 and the pipe body 21 are large; if the pressure requirement between the pipe joint 1 and the pipe body 21 is small, a conical spring with small spring force is selected.

Optionally, the outer wall of the pipe joint 1 is provided with a sealing groove, the positioning groove 12 is located between the sealing groove and the limiting protrusion 11, a sealing ring 13 is embedded in the sealing groove, and the sealing ring 13 is used for sealing a gap between the pipe joint 1 and the pipe body 21. The packing 13 prevents liquid or foreign substances from passing through a gap between the coupling 1 and the pipe body 21.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a pipeline quick connector structure which characterized in that includes:

the pipe joint (1), the outer wall of the pipe joint (1) is provided with a positioning groove (12);

the joint connecting piece comprises a pipe body (21), a positioning pin (22), an elastic piece (23), a pulling rope (25) and a blocking block (24), wherein the pipe body (21) is provided with a containing hole, the blocking block (24) is fixedly connected with the pipe body (21) and blocks one end of the containing hole, the positioning pin (22) slides in the containing hole, the elastic piece (23) is positioned between the positioning pin (22) and the blocking block (24), one end of the pulling rope (25) is fixedly connected with the positioning pin (22), and the other end of the pulling rope sequentially penetrates through the elastic piece (23) and the blocking block (24) and is positioned outside the pipe body (21);

the pipe joint (1) is inserted into the pipe body (21), and the elastic piece (23) can drive the positioning pin (22) to be inserted into the positioning groove (12).

2. The pipeline quick connector structure according to claim 1, wherein a limiting protrusion (11) is arranged on the outer wall of the pipe joint (1), and the limiting protrusion (11) can be abutted against the end face, close to the limiting protrusion (11), of the pipe body (21); when the positioning pin (22) is inserted into the positioning groove (12), the limiting protrusion (11) is located outside the pipe body (21), and the distance L1 between the limiting protrusion (11) and the end face, close to the limiting protrusion (11), of the pipe body (21) is smaller than the axial width L2 of the positioning groove (12) along the pipe joint (1).

3. The pipeline quick connector structure according to claim 2, wherein a sealing groove is formed in an outer wall of the pipe joint (1), the positioning groove (12) is located between the sealing groove and the limiting protrusion (11), a sealing ring (13) is embedded in the sealing groove, and the sealing ring (13) is used for sealing a gap between the pipe joint (1) and the pipe body (21).

4. Pipeline quick-connect coupling structure according to claim 1, characterized in that the coupling connector further comprises a pull ring (26), and the pull ring (26) is fixedly connected to the other end of the pull rope (25).

5. Pipeline quick-connect coupling structure according to claim 4, characterized in that the pull ring (26) is made of a soft material.

6. Pipeline quick connector structure according to any one of claims 1-5, characterized in that the end of the positioning pin (22) facing the positioning slot (12) is provided with a guiding surface (221).

7. Pipeline quick connector structure according to any one of claims 1-5, characterized in that the positioning groove (12) is ring-shaped, and the positioning groove (12) extends along the circumference of the pipe connector (1).

8. Pipeline quick connector structure according to any one of claims 1-5, characterized in that the elastic member (23) is a conical spring, the small end of the conical spring abuts against the positioning pin (22), and the large end of the conical spring abuts against the block (24).

9. Pipeline quick-connect coupling structure according to any one of claims 1 to 5, characterized in that the block (24) is screwed to the pipe body (21).

10. Pipeline quick connector structure according to any of claims 1-5, characterized in that the pipe joint (1) and the pipe body (21) are made of plastic material.