CN220249244U

CN220249244U - Pipeline connection structure

Info

Publication number: CN220249244U
Application number: CN202321237249.5U
Authority: CN
Inventors: 陈德和
Original assignee: Jiangxi Universe Circuit Board Equipment Co ltd
Current assignee: Jiangxi Universe Circuit Board Equipment Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-12-26
Anticipated expiration: 2033-05-22

Abstract

The utility model belongs to the technical field of pipeline connection, and discloses a pipeline connection structure which comprises a main connecting piece, a sealing sleeve, a squeezing ring piece and a connecting piece, wherein the main connecting piece comprises a main connecting channel, an inner annular surface is outwards inclined at the interface end of the main connecting channel, the inner surface of the sealing sleeve can be attached to the outer surface of a to-be-connected pipe, an outer annular surface is inwards inclined at the periphery of the first end of the sealing sleeve, the first end of the sealing sleeve penetrates through the main connecting channel, the outer annular surface is attached to the inner annular surface, the squeezing ring piece is arranged at the second end of the sealing sleeve, and the connecting piece is connected with the squeezing ring piece. According to the pipeline connecting structure provided by the utility model, the extrusion ring piece, the sealing sleeve piece and the main connecting piece are sequentially sleeved at the to-be-connected end part of the to-be-connected pipe, the extrusion ring piece is propped by the connecting piece, the outer annular surface can generate propping pressure on the inner annular surface, so that the main connecting piece can realize good sealing between the sealing sleeve piece and the to-be-connected pipe, and the connection of the pipeline can be completed without welding.

Description

Pipeline connection structure

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a pipeline connection structure.

Background

Pipes are devices for transporting gas, liquid or fluid with solid particles, which are coupled by pipes, pipe couplings, valves, etc. In general, after the fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., the fluid flows from a high pressure place to a low pressure place of a pipeline, and the fluid can be conveyed by the pressure or gravity of the fluid. The piping is used in a wide variety of applications, mainly in water supply, water drainage, heat supply, gas supply, long distance transportation of petroleum and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices.

In the prior art, pipelines are generally formed by multistage connection due to different installation spaces and special requirements, and under general conditions, the connection between metal pipelines is generally butt welding or flange connection, the pipeline butt welding connection needs full welding, water leakage can be caused by poor welding, and the pipeline is inconvenient to detach and transport after butt welding; flange type connection is convenient in site construction, but before use, flanges are required to be welded at the interface end of a pipeline in advance, and the end face after high-temperature welding is likely to deform and be uneven, so that water leakage is caused. And both connecting modes need to be welded, and a procedure of cleaning weld scars is needed to be added after the welding.

Disclosure of Invention

The utility model aims to provide a pipeline connecting structure which can finish the connection of pipelines without welding, has good sealing performance and is convenient to operate.

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

there is provided a pipe connection structure including:

the main connecting piece comprises a main connecting channel, an inner ring surface is outwards inclined at the interface end of the main connecting channel, and the interface end of the main connecting channel is used for sleeving a to-be-connected pipe;

the sealing sleeve is used for sleeving the to-be-connected pipe, the inner surface of the sealing sleeve can be attached to the outer surface of the to-be-connected pipe, the outer circumferential part of the first end of the sealing sleeve is obliquely inwards provided with an outer annular surface, the first end of the sealing sleeve is penetrated in the main connecting channel, and the outer annular surface is attached to the inner annular surface;

the extrusion ring piece is used for sleeving the to-be-connected pipe, and is arranged at the second end of the sealing sleeve piece;

the connecting piece is connected with the extrusion ring piece, the connecting piece is used for propping the extrusion ring piece, so that the extrusion ring piece faces towards one end of the sealing sleeve piece and props against the second end of the sealing sleeve piece.

Optionally, the main channel comprises at least two interface ends, each of the interface ends of the main channels is provided with the inner ring surface, and the interface ends of the main channels are provided with the sealing sleeve, the extrusion ring and the connecting piece.

Optionally, the pressing ring is provided with a first connection portion;

the connecting pieces are provided with a plurality of connecting pieces and are arranged at intervals along the circumferential direction of the extrusion ring piece, the first ends of the connecting pieces are provided with step heads, and the step heads are abutted with the first connecting parts; wherein,

the second end of the connecting piece is penetrated with the first connecting part of one extrusion ring piece and is in threaded connection with the first connecting part of the other extrusion ring piece; or (b)

The pipeline connecting structure further comprises a plurality of fasteners which are arranged in one-to-one correspondence with the connecting pieces, and the second ends of the connecting pieces sequentially penetrate through the first connecting parts of the two extrusion ring pieces and are in threaded connection with the fasteners.

Optionally, the pressing ring is provided with a first connection portion;

the interface end of the main connecting piece, which is positioned in the main connecting channel, is provided with a second connecting part;

the second end of the connecting piece penetrates through the first connecting part and is in threaded connection with the second connecting part; or (b)

The pipeline connecting structure further comprises a plurality of fasteners which are arranged in one-to-one correspondence with the connecting pieces, and the second ends of the connecting pieces sequentially penetrate through the first connecting portions, the second connecting portions and the fasteners in threaded connection.

Optionally, the first connecting portion is annular, and the first connecting portion is equipped with a plurality of first through-holes along circumference interval, the connecting piece one-to-one is worn to locate first through-hole.

Optionally, the extrusion ring piece is provided with a plurality of first connecting portions along circumference interval, every first through-hole is all seted up on the first connecting portion, the connecting piece one-to-one wears to locate first through-hole.

Optionally, the second connecting portion is annular, and the second connecting portion is equipped with a plurality of second through holes along circumference interval, the connecting piece one-to-one is worn to locate the second through hole.

Optionally, the main connector is located at the interface end of each main connecting channel, a plurality of second connecting portions are arranged at intervals along the circumferential direction, second through holes are formed in each second connecting portion, and the connectors are correspondingly arranged in the second through holes in a penetrating mode.

Optionally, the second end of the sealing sleeve is located outside the main channel.

Optionally, the main connector is configured as a straight tube, elbow or valve.

The utility model has the beneficial effects that:

according to the pipeline connecting structure, when connecting a to-be-connected pipe, the extrusion ring piece, the sealing sleeve piece and the main connecting piece are sequentially sleeved on the to-be-connected end of the to-be-connected pipe, and then the extrusion ring piece is propped against the extrusion ring piece through the connecting piece, so that one end of the extrusion ring piece, which faces the sealing sleeve piece, is propped against the second end of the sealing sleeve piece, the outer ring surface can be propped against the inner ring surface due to the design of the outer ring surface and the inner ring surface, so that the outer ring surface and the inner ring surface are tightly attached to each other, the inner surface of the sealing sleeve piece is tightly attached to the outer surface of the to-be-connected pipe through inwards shrinking extrusion, good sealing is achieved, and the connection of a pipeline can be completed without welding, and the operation is convenient.

Drawings

FIG. 1 is a cross-sectional view of a pipe connection structure with a straight pipe as the main joint provided by the utility model;

FIG. 2 is a cross-sectional view of a pipe connection structure with a main fitting being an elbow member provided by the present utility model;

FIG. 3 is a cross-sectional view of a pipe connection structure with a valve member as the main joint member provided by the present utility model;

fig. 4 is a schematic structural view of a pipe connection structure with a valve member as a main connector.

In the figure:

10. the pipe is to be connected;

100. a main joint; 110. a main connecting channel; 111. an inner annulus; 120. a second connecting portion; 121. a second through hole;

200. a sealing sleeve; 210. an outer annulus;

300. extruding the ring member; 310. a first connection portion; 311. a first through hole;

400. a connecting piece; 410. a stepped head;

500. a fastener;

600. and an elastic gasket.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 to 4, the present embodiment provides a pipe connection structure including a main joint 100, a seal kit 200, a squeeze ring 300, and a connection 400.

Specifically, the main joint 100 includes a main joint channel 110, an interface end of the main joint channel 110 is provided with an inner annular surface 111 in an outward inclined manner, and the interface end of the main joint channel 110 is used for sleeving the to-be-taken over 10. The sealing sleeve 200 is used for sleeving the to-be-connected pipe 10, the inner surface of the sealing sleeve 200 can be attached to the outer surface of the to-be-connected pipe 10, an outer annular surface 210 is obliquely arranged inwards on the periphery of the first end of the sealing sleeve 200, the first end of the sealing sleeve 200 is arranged in the main connecting channel 110 in a penetrating mode, and the outer annular surface 210 is attached to the inner annular surface 111. The extrusion ring 300 is used for sleeving the to-be-connected pipe 10, and the extrusion ring 300 is arranged at the second end of the sealing sleeve 200. The connector 400 is connected to the compression ring 300, and the connector 400 is configured to press against the compression ring 300 such that the compression ring 300 presses against the second end of the seal assembly 200 toward one end of the seal assembly 200.

In this embodiment, when the pipe connecting structure connects the pipe to be connected 10, the extrusion ring 300, the sealing sleeve 200 and the main connector 100 are sequentially sleeved at the end to be connected of the pipe to be connected 10, and then the extrusion ring 300 is pressed against the extrusion ring 300 by the connector 400, so that the extrusion ring 300 is pressed against the second end of the sealing sleeve 200 toward one end of the sealing sleeve 200, and the outer ring 210 and the inner ring 111 are pressed against each other due to the design of the outer ring 210 and the inner ring 111, so that the outer ring 210 and the inner ring 111 are tightly attached, and the inner ring 111 is shrunk and pressed inwards to tightly attach the inner surface of the sealing sleeve 200 to the outer surface of the pipe to be connected 10, thereby realizing good sealing.

Specifically, the material of the sealing sleeve 200 may be a rubber material. Of course, the material of the sealing sleeve 200 may be other materials, which is not specifically limited in this application.

Illustratively, the radial cross-sectional shape of the seal cartridge 200 may be wedge-shaped. Of course, the sealing sleeve 200 may be of other shapes, and is not particularly limited in this application.

In a possible embodiment, the second end of the sealing sleeve 200 is located outside the main connection channel 110, so that the second end of the sealing sleeve 200 is pressed against the end of the sealing sleeve 200 by the extrusion ring 300 conveniently, and it can be understood that the second end of the sealing sleeve 200 is pressed against the end of the sealing sleeve 200 by the extrusion ring 300 without additional processing, and the extrusion condition of the sealing sleeve 200 by the extrusion ring 300 is observed conveniently by a worker.

In this embodiment, the main connection channel 110 includes at least two interface ends, the interface end of each main connection channel 110 is provided with an inner ring surface 111, and the interface end of each main connection channel 110 of the main connector 100 is provided with a sealing sleeve 200, an extrusion ring 300 and a connecting piece 400, which are suitable for various connection forms of the to-be-connected pipe 10, and the application range is wide.

In one possible embodiment, as shown in fig. 1, the main joint 100 may be a straight pipe, and may be used to connect two pipes 10 to be connected, whose axes coincide.

In one possible embodiment, as shown in fig. 2, the main connection 100 may be a knee piece, which may be used to connect two to-be-connected pipes 10 whose axes are arranged at an angle. For example, the axes of the two interface ends of the elbow piece are arranged at an included angle of 90 degrees.

In one possible embodiment, as shown in FIG. 3, the main junction 100 may be a valve element. The on-off state of the to-be-connected pipe 10 is controlled by a valve member. For example, the valve member may be a ball valve.

Of course, the main connector 100 may be a pipe with other shapes for avoiding installation interference, and thus, the present utility model is applicable to various installation environments.

In one possible embodiment, as shown in fig. 1, the extrusion ring 300 is provided with a first connection 310; the connecting piece 400 is provided with a plurality of connecting pieces and is arranged at intervals along the circumferential direction of the extrusion ring 300, the first end of the connecting piece 400 is provided with a step head 410, and the step head 410 is abutted with the first connecting portion 310. Further, the pipe connection structure further includes a plurality of fasteners 500 disposed in one-to-one correspondence with the connectors 400, and the second ends of the connectors 400 sequentially penetrate through the first connection portions 310 of the two extrusion ring members 300 and are in threaded connection with the fasteners 500. The main connecting piece 100 is a straight pipe, the extrusion ring pieces 300 at two interface ends of the main connecting piece 100 are coaxially arranged, and the two extrusion ring pieces 300 always have a trend of moving in opposite directions in a manner that the connecting piece 400 sequentially penetrates through the first connecting portions 310 of the two extrusion ring pieces 300 and is in threaded connection with the fastening piece 500, namely, the two extrusion pieces simultaneously support and press the second ends of the sealing sleeve pieces 200 at the corresponding sides, so that the fixed connection between the pipeline connecting structure and the to-be-connected pipe 10 is realized, and the connection is convenient and quick.

For example, the connecting member 400 may be a bolt, the fastening member 500 may be a nut, and in order to ensure that the connection between the connecting member 400 and the fastening member 500 is stable, the elastic washer 600 may be disposed between the stepped head 410 and the first connecting portion 310 on the corresponding side, the elastic washer 600 may be disposed between the fastening member 500 and the first connecting portion 310 on the corresponding side, and the elastic washer 600 may be disposed between the stepped head 410 and the first connecting portion 310 on the corresponding side and between the fastening member 500 and the first connecting portion 310 on the corresponding side.

It should be noted that the pipe connection structure may not include the fastener 500, that is, the second end of the connecting piece 400 is threaded through the first connecting portion 310 of one extrusion ring 300 and is in threaded connection with the first connecting portion 310 of the other extrusion ring 300, so as to facilitate connection of the pipe connection structure with the pipe to be connected 10.

It should be noted that, the pipe connection structure may not include the connection piece 400, and the extrusion ring 300 is provided with an internal thread by setting an external thread at the end of the pipe to be connected 10, and the extrusion ring 300 is directly connected with the pipe to be connected 10 in a threaded connection manner, so that the effect of the extrusion ring 300 in the above embodiment can be achieved.

In a possible embodiment, the first connecting portion 310 is annular, and a plurality of first through holes 311 are formed in the first connecting portion 310 at intervals along the circumferential direction, and the connecting pieces 400 are correspondingly arranged in the first through holes 311 in a penetrating manner, so that the extrusion ring 300 is convenient to be molded and manufactured. Preferably, the number of the first through holes 311 is four to eight.

In a possible embodiment, as shown in fig. 1 to fig. 4, the first connection portions 310 are in an ear shape, a plurality of first connection portions 310 are circumferentially arranged on the extrusion ring 300 at intervals, each first connection portion 310 is provided with a first through hole 311, and the connection pieces 400 are correspondingly arranged in the first through holes 311 in a penetrating manner. Compared with the annular first connecting part 310, the weight of the extrusion ring 300 can be effectively reduced, the working strength of workers is reduced, an avoidance space is formed, and installation interference is avoided. Preferably, the number of the first connection parts 310 is four to eight.

In one possible embodiment, as shown in fig. 2 and 3, the interface end of the main connector 100 at the main channel 110 is provided with a second connection 120. Further, the extrusion ring 300 and the connecting member 400 in fig. 2 and 3 are the same as the extrusion ring 300 and the connecting member 400 in fig. 1, it can be understood that the extrusion ring 300 is provided with the first connecting portion 310, the connecting member 400 is provided with a plurality of connecting portions and is disposed at intervals along the circumferential direction of the extrusion ring 300, the first end of the connecting member 400 is provided with the step head 410, and the step head 410 abuts against the first connecting portion 310. In this embodiment, the second end of the connector 400 may penetrate the first connecting portion 310 and be screwed with the second connecting portion 120, so as to connect the pipe connection structure with the to-be-connected pipe 10; the second end of the connecting piece 400 may also sequentially penetrate through the first connecting portion 310 and the second connecting portion 120 and be in threaded connection with the fastener 500, so as to realize connection between the pipe connection structure and the to-be-connected pipe 10, which is not limited in this application. Of course, the present embodiment can also secure the connection between the connector 400 and the fastener 500 by providing the elastic washer 600.

In a possible embodiment, the second connecting portion 120 is annular, and a plurality of second through holes 121 are circumferentially spaced apart from the second connecting portion 120, and the connecting members 400 are correspondingly disposed through the second through holes 121, so as to facilitate the molding and manufacturing of the main connecting member 100.

In a possible embodiment, as shown in fig. 2 to fig. 4, the second connection portions 120 are ear-shaped, a plurality of second connection portions 120 are circumferentially disposed at intervals at the interface end of each main connection channel 110 of the main connector 100, each second connection portion 120 is provided with a second through hole 121, and the connection pieces 400 are correspondingly disposed through the second through holes 121 one by one. Compared with the annular second connecting part 120, the weight of the main connector 100 can be effectively reduced, the working strength of workers is reduced, an avoidance space is formed, and installation interference is avoided.

The pipe connection structure provided in this embodiment not only can be used for connecting the metal to-be-connected pipe 10, but also can be used for connecting the plastic or other materials to-be-connected pipe 10, and is not limited herein.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A pipe connection structure, comprising:

the main connector (100) comprises a main connecting channel (110), wherein an inner ring surface (111) is outwards obliquely arranged at the interface end of the main connecting channel (110), and the interface end of the main connecting channel (110) is used for sleeving a to-be-connected pipe (10);

the sealing sleeve (200) is used for sleeving the to-be-connected pipe (10), the inner surface of the sealing sleeve (200) can be in fit with the outer surface of the to-be-connected pipe (10), the outer circumferential part of the first end of the sealing sleeve (200) is inwards inclined to form an outer annular surface (210), the first end of the sealing sleeve (200) is penetrated into the main connecting channel (110), and the outer annular surface (210) is in fit with the inner annular surface (111);

the extrusion ring piece (300) is used for sleeving the to-be-connected pipe (10), and the extrusion ring piece (300) is arranged at the second end of the sealing sleeve piece (200);

and the connecting piece (400) is connected with the extrusion ring piece (300), and the connecting piece (400) is used for propping the extrusion ring piece (300) so that the extrusion ring piece (300) is propped against the second end of the sealing sleeve piece (200) towards one end of the sealing sleeve piece (200).

2. The pipe connection according to claim 1, wherein the main joint channels (110) comprise at least two interface ends, the interface end of each main joint channel (110) is provided with the inner annulus (111), and the main joint (100) at the interface end of each main joint channel (110) is provided with the sealing sleeve (200), the compression ring (300) and the connection (400).

3. The pipe connection according to claim 2, characterized in that the press ring (300) is provided with a first connection (310);

the connecting pieces (400) are arranged in a plurality of mode and are arranged at intervals along the circumferential direction of the extrusion ring piece (300), a step head part (410) is arranged at the first end of each connecting piece (400), and the step head parts (410) are abutted with the first connecting parts (310); wherein,

the second end of the connecting piece (400) is penetrated through the first connecting part (310) of one extrusion ring piece (300) and is in threaded connection with the first connecting part (310) of the other extrusion ring piece (300); or (b)

The pipeline connecting structure further comprises a plurality of fasteners (500) which are arranged in one-to-one correspondence with the connecting pieces (400), and the second ends of the connecting pieces (400) sequentially penetrate through the first connecting parts (310) of the two extrusion ring pieces (300) and are in threaded connection with the fasteners (500).

4. The pipe connection according to claim 1, characterized in that the press ring (300) is provided with a first connection (310);

the interface end of the main connecting piece (100) positioned in the main connecting channel (110) is provided with a second connecting part (120);

the second end of the connecting piece (400) penetrates through the first connecting part (310) and is in threaded connection with the second connecting part (120); or (b)

The pipeline connecting structure further comprises a plurality of fasteners (500) which are arranged in one-to-one correspondence with the connecting pieces (400), and the second ends of the connecting pieces (400) sequentially penetrate through the first connecting portions (310) and the second connecting portions (120) and are in threaded connection with the fasteners (500).

5. The pipe connection structure according to claim 3 or 4, wherein the first connection portion (310) is annular, a plurality of first through holes (311) are circumferentially spaced apart from the first connection portion (310), and the connection pieces (400) are correspondingly arranged in the first through holes (311) in a penetrating manner.

6. The pipe connection structure according to claim 3 or 4, wherein a plurality of first connection portions (310) are circumferentially arranged on the extrusion ring (300) at intervals, each first connection portion (310) is provided with a first through hole (311), and the connection pieces (400) are correspondingly arranged in the first through holes (311) in a penetrating manner.

7. The pipe connection structure according to claim 4, wherein the second connection portion (120) is annular, and the second connection portion (120) is provided with a plurality of second through holes (121) at intervals along a circumferential direction, and the connection pieces (400) are correspondingly arranged through the second through holes (121) in a penetrating manner.

8. The pipe connection structure according to claim 4, wherein a plurality of second connection portions (120) are circumferentially arranged at intervals at the interface end of each main connection channel (110) of the main connection piece (100), second through holes (121) are respectively formed in each second connection portion (120), and the connection pieces (400) are correspondingly arranged through the second through holes (121) in a penetrating manner.

9. The pipe connection according to claim 1, characterized in that the second end of the sealing sleeve (200) is located outside the main channel (110).

10. The pipe connection according to claim 1, characterized in that the main joint (100) is configured as a straight pipe, an elbow or a valve.