CN214119286U

CN214119286U - Pipeline connecting structure

Info

Publication number: CN214119286U
Application number: CN202120518377.1U
Authority: CN
Inventors: 温伟刚; 刘兴革
Original assignee: Li Xing Kai Beijing Energy System Technology Co ltd
Current assignee: Li Xing Kai Beijing Energy System Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-09-03
Anticipated expiration: 2031-03-11

Abstract

The application discloses pipeline connection structure, this pipeline connection structure includes: the first pipeline comprises a first connecting end, and the first connecting end comprises an inner peripheral conical surface and a first step surface; a second pipe including a second connection end including an outer peripheral tapered surface and a second step surface opposite to the inner peripheral tapered surface and the first step surface; and the fixing mechanism is arranged on the outer peripheral surface of the butted first connecting end and second connecting end and is used for fixing the first connecting end and the second connecting end. According to the technical scheme of the application, the pipelines can be efficiently and reliably connected.

Description

Pipeline connecting structure

Technical Field

The present application relates to the field of fluid delivery, and more particularly, to a pipe connection structure.

Background

In a hydraulic system or a fluid delivery system, the fluid transfer work is usually performed by a pipeline. In the process of erecting the pipeline, the pipeline is firstly required to be fixed, then the connecting ends of the pipes are butted and fixed through fasteners. However, in the connection process, if there is an error in the accuracy of the butt joint between the pipes, the hidden danger of leakage exists at the joint of the pipes, so the conventional pipe connection process usually needs to consume much effort and use a measuring tool to ensure the accuracy of the pipe connection.

Therefore, how to provide an efficient and reliable pipeline connection mode becomes a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a pipeline connection structure to implement an efficient and reliable pipeline connection method.

According to the application, a pipeline connecting structure is provided, which comprises: the first pipeline comprises a first connecting end, and the first connecting end comprises an inner peripheral conical surface and a first step surface; a second pipe including a second connection end including an outer peripheral tapered surface and a second step surface opposite to the inner peripheral tapered surface and the first step surface; and the fixing mechanism is arranged on the outer peripheral surface of the butted first connecting end and second connecting end and is used for fixing the first connecting end and the second connecting end.

Preferably, the included angle α between the inner conical surface and the outer conical surface and the central axes of the first pipeline and the second pipeline is 30-60 degrees.

Preferably, the first and second step faces are perpendicular to central axes of the first and second pipes.

Preferably, the first step surface and the second step surface are adjacent surfaces of the inner peripheral tapered surface and the outer peripheral tapered surface, respectively.

Preferably, a sealing ring is arranged between the inner circumference conical surface and the outer circumference conical surface, and the diameter of the sealing ring is larger than the minimum diameter of the inner circumference conical surface and the outer circumference conical surface and smaller than the maximum diameter of the inner circumference conical surface and the outer circumference conical surface; and/or a sealing gasket is arranged between the first step surface and the second step surface.

Preferably, at least one of the inner and outer tapered surfaces is provided with a seal ring groove for allowing a portion of the seal ring to be sunk therein.

Preferably, the sealing ring is a plurality of sealing rings, and the diameters of the sealing rings are different from each other.

Preferably, the seal ring is fixedly arranged on one of the inner peripheral conical surface and the outer peripheral conical surface; and/or the sealing gasket is fixedly arranged on one of the first step surface and the second step surface.

Preferably, the fixing mechanism includes: the hook is fixedly arranged on one of the first connecting end and the second connecting end; the hinge seat is fixedly arranged on the other hinge seat, and the height of the hinge axis of the hinge seat is higher than that of the hook relative to the peripheral surface; one end of the swing arm is hinged to the hinge seat, and the other end of the swing arm swings around the hinge axis of the hinge seat; the cantilever comprises a first end hinged on the swing arm and a second end capable of being hooked on the hook; under the condition that the first connecting end is in butt joint with the second connecting end, when the swing arm swings to one side of the hook, the distance between the first end of the cantilever and the hook is smaller than the length of the cantilever, and when the swing arm swings to the opposite side of the hook, the distance between the first end of the cantilever and the hook is larger than the length of the cantilever.

Preferably, one end of the swing arm, which is far away from the hinge base, is fixedly provided with a magnetic part, and the magnetic part is used for being adsorbed on the outer peripheral surface when the swing arm swings to the side opposite to the hook.

According to the technical scheme of the application, when the first pipeline and the second pipeline of the pipeline connecting structure are connected, the inner peripheral conical surface and the first step surface of the first connecting end and the outer peripheral conical surface and the second step surface of the second connecting end can be rapidly matched, so that the first pipeline and the second pipeline can be rapidly aligned. Therefore, the technical scheme of this application provides a high-efficient reliable pipeline connected mode.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:

fig. 1 is a sectional view of a piping connection structure according to a preferred embodiment of the present application;

fig. 2 is an exploded view of the pipe connection structure shown in fig. 1.

Detailed Description

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to provide an efficient and reliable pipeline connection method, as shown in fig. 1 and 2, the present application provides a pipeline connection structure, which includes: a first pipe 10, the first pipe 10 including a first connection end 11, the first connection end 11 including an inner peripheral tapered surface 12 and a first step surface 13; a second pipe line 20, the second pipe line 20 including a second connection end 21, the second connection end 21 including an outer peripheral tapered surface 22 and a second step surface 23 opposite to the inner peripheral tapered surface 12 and the first step surface 13; and the fixing mechanism 30 is arranged on the outer peripheral surface 40 of the first connecting end 11 and the second connecting end 21 after being butted, and is used for fixing the first connecting end 11 and the second connecting end 21. According to the technical scheme of the application, when the first pipeline 10 and the second pipeline 20 are installed and connected, the first connecting end 11 of the first pipeline 10 is matched with the second connecting end 21 of the second pipeline 20 in a calibration mode, the central axes of the first pipeline 10 and the second pipeline 20 are calibrated through the matching of the inner peripheral conical surface 12 and the outer peripheral conical surface 22, the relative positions of the first pipeline 10 and the second pipeline 20 in the axial direction are limited through the matching of the first step surface 13 and the second step surface 23, and the calibrated first connecting end 11 and the calibrated second connecting end 21 are fixed through the fixing mechanism 30, so that efficient and reliable pipeline connection is achieved.

According to the scheme, the pipeline connecting structure can be applied to connection between pipelines and other liquid flow path devices, such as connection between pipelines and valves. The fixing mechanism 30 may be a fixing structure in the form of flange connection, butt-clamp connection, butt-welding connection, threaded connection, ferrule connection, clamp connection, self-sealing connection, or the like, and is preferably a connection structure that can be manually operated to improve the installation efficiency and simplify the installation process.

The inner conical surface 12 and the outer conical surface 22 have conical shapes with the same taper, and preferably, as shown in fig. 2, an included angle α between the inner conical surface 12 and the outer conical surface 22 and the central axes of the first pipeline 10 and the second pipeline 20 may be 15 to 75 degrees, and preferably, 30 to 60 degrees. The first step surface 13 and the second step surface 23 do not extend on the same surface as the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22, and preferably, as shown in fig. 2, the first step surface 13 and the second step surface 23 are perpendicular to the central axes of the first pipeline 10 and the second pipeline 20, and when the first connecting end 11 and the second connecting end 21 are butted, the first step surface 13 and the second step surface 23 are abutted to limit the axial positions of the first pipeline 10 and the second pipeline 20, so as to prevent the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 from being deformed by extrusion. The first step surface 13 and the second step surface 23 are preferably adjacent surfaces of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22, respectively, and a plurality of, preferably two, first step surfaces 13 and second step surfaces 23 may be provided, and the sides based on the maximum diameter and the sides based on the minimum diameter of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 are adjacent to each other, respectively. Alternatively, the first step surface 13 and the second step surface 23 may be provided at the middle portions of the inner tapered surface 12 and the outer tapered surface 22, and the inner tapered surface 12 and the outer tapered surface 22 may be divided into a plurality of tapered surfaces from the middle portions.

The first connection end 11 and the second connection end 21 may be sealed by a sealing member or sealant, or the radial dimension of the outer conical surface 22 may be set to be slightly larger than the radial dimension of the inner conical surface 12, so as to realize expansion sealing after the pipeline is installed. Preferably, as shown in fig. 1 and 2, a seal ring 41 is disposed between the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22, the diameter of the seal ring 41 is greater than the minimum diameter of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 and less than the maximum diameter of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22, so that the seal ring 41 is compressed between the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 when the first connection end 11 and the second connection end 21 are mated, thereby achieving a sealing effect, and the cross-sectional shape of the seal ring 41 is preferably circular to prevent abrasion caused by friction between the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22. Alternatively, a seal gasket 42 may be provided between the first step surface 13 and the second step surface 23 to achieve sealing, the seal gasket 42 is preferably a hollow annular seal gasket, the cross-sectional shape is preferably rectangular, the minimum diameter of the seal gasket 42 is preferably greater than or equal to the minimum diameter of the first step surface 13 and the second step surface 23, and the maximum diameter is preferably less than or equal to the maximum diameter of the first step surface 13 and the second step surface 23, so that the seal gasket 42 is not easily displaced after being pressed. The seal ring 41 and the seal gasket 42 in the above embodiment may be provided alone or simultaneously, thereby improving the sealing performance of the pipe connection structure. The material of the seal ring 41 and the packing 42 may be a relatively soft metal material, and is preferably a nonmetallic packing such as rubber or asbestos.

In the case where the seal ring 41 is provided between the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22, as shown in fig. 2, at least one of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 is preferably provided with a seal ring groove 43 for allowing a part of the seal ring 41 to be recessed in the seal ring groove 43, and the seal ring 41 can be restricted to the position of the seal ring groove 43 as much as possible. The seal groove 43 may be a V-groove, a T-groove, an arc-shaped groove, or the like. The sealing rings 41 are preferably provided in plural numbers, and the diameters of the sealing rings 41 are different from each other, so that the sealing rings 41 can be spaced between the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 when the first connection end 11 and the second connection end 21 are mated, thereby improving the sealing performance. According to the above pipe connection structure, the packing 41 may be fixedly provided to one of the inner peripheral tapered surface 12 and the outer peripheral tapered surface 22 by, for example, bonding, for easy installation; and/or the sealing gasket 42 can also be fixedly arranged on one of the first step surface 13 and the second step surface 23 by means of bonding, so that when the pipeline connection operation is carried out, the sealing ring 41 and/or the sealing gasket 42 do not need to be separately installed, the installation time is saved, and the installation efficiency is improved.

In the pipeline connecting structure of any of the above embodiments, the fixing mechanism 30 of the pipeline connecting structure may be a conventional fastening mechanism that needs to be fixed by an installation tool in cooperation, such as a flange-fit threaded fastener, or may be a fastening mechanism that can be directly manually operated by a worker.

As shown preferably in fig. 1 and 2, the securing mechanism 30 preferably includes: a hook 31, wherein the hook 31 is fixedly arranged on one of the first connecting end 11 and the second connecting end 21; a hinge seat 32, the hinge seat 32 being fixedly disposed on the other, a height of a hinge axis of the hinge seat 32 being higher than a height of the hook with respect to the outer circumferential surface 40; a swing arm 33, one end of the swing arm 33 is hinged to the hinge base 32, and the other end swings around the hinge axis of the hinge base 32; and a cantilever 34, the cantilever 34 comprising a first end 341 hinged to the swing arm 33 and a second end 342 hitchable to the hook 31. Under the condition that the first connection end 11 and the second connection end 21 are butted, when the swing arm 33 swings to one side of the hook 31, the distance between the first end 341 of the cantilever 34 and the hook 31 is smaller than the length of the cantilever 34, so that the cantilever 34 is conveniently hung on the hook 31, and when the swing arm 33 swings to the opposite side of the hook 31, the distance between the first end 341 of the cantilever 34 and the hook 31 is larger than the length of the cantilever 34, so that the material tension of the cantilever 34 can act between the hook 31 and the hinge seat 32, and the fixing effect on the first connection end 11 and the second connection end 21 is realized. Since the height of the hinge axis of the hinge seat 32 is higher than that of the hook, the swing arm 33 can be kept facing one side of the pipeline when the fixing mechanism 30 is locked. The fixing mechanisms 30 in the pipeline connecting structure are preferably provided in plurality, and the plurality of fixing mechanisms 30 are circumferentially distributed on the outer peripheral surfaces 40 of the first connecting end 11 and the second connecting end 21. The end of the swing arm 33 away from the hinge seat 32 is preferably further fixedly provided with a magnetic member 331, and the magnetic member 331 is used for being attracted to the outer peripheral surface 40 to further fix the swing arm 33 when the swing arm 33 swings to the opposite side of the hook 31, thereby improving the stability of the fixing mechanism 30.

According to the pipe connecting structure of the preferred embodiment of the present application, when the first pipe 10 and the second pipe 20 are connected, the inner peripheral tapered surface 12 and the first step surface 13 of the first connecting end 11 and the outer peripheral tapered surface 22 and the second step surface 23 of the second connecting end 21 can be quickly matched to achieve quick alignment of the first pipe and the second pipe. The pipe connecting structure has high sealing performance due to the seal ring 41 and the seal gasket 42 provided between the inner peripheral tapered surface 12 and the first stepped surface 13 and between the outer peripheral tapered surface 22 and the second stepped surface 23. And then can be quickly fixed by the fixing mechanism 30 which is convenient for the manual operation of the staff. Therefore, the application provides an efficient and reliable pipeline connecting mode.

The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.

In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.

Claims

1. Pipeline connection structure, its characterized in that, this pipeline connection structure includes:

the pipeline connecting structure comprises a first pipeline (10), wherein the first pipeline (10) comprises a first connecting end (11), and the first connecting end (11) comprises an inner peripheral conical surface (12) and a first step surface (13);

a second pipe (20), the second pipe (20) including a second connection end (21), the second connection end (21) including an outer peripheral tapered surface (22) and a second step surface (23) opposite to the inner peripheral tapered surface (12) and the first step surface (13); and

and the fixing mechanism (30) is arranged on the outer peripheral surface (40) of the butted first connecting end (11) and second connecting end (21) and used for fixing the first connecting end (11) and the second connecting end (21).

2. The pipe connection structure according to claim 1, wherein the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22) form an angle α of 30 to 60 degrees with the central axis of the first pipe (10) and the second pipe (20).

3. The piping connection structure according to claim 1, wherein the first step face (13) and the second step face (23) are perpendicular to a central axis of the first piping (10) and the second piping (20).

4. The piping connection structure according to claim 3, wherein the first step surface (13) and the second step surface (23) are surfaces adjacent to the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22), respectively.

5. The pipe connection structure according to claim 1, wherein a seal ring (41) is provided between the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22), and a diameter of the seal ring (41) is larger than a minimum diameter of the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22) and smaller than a maximum diameter of the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22); and/or

A sealing gasket (42) is arranged between the first step surface (13) and the second step surface (23).

6. The pipe connection structure according to claim 5, wherein at least one of the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22) is provided with a seal ring groove (43) for allowing a portion of the seal ring (41) to be recessed in the seal ring groove (43).

7. The piping connection structure according to claim 5, wherein said seal ring (41) is plural, and said plural seal rings (41) are different in diameter from each other.

8. The pipe connection structure according to claim 5, wherein the seal ring (41) is fixedly provided on one of the inner peripheral tapered surface (12) and the outer peripheral tapered surface (22); and/or the sealing gasket (42) is fixedly arranged on one of the first step surface (13) and the second step surface (23).

9. Piping connection structure according to any of claims 1-8, characterized in that said fixing means (30) comprise:

a hook (31), wherein the hook (31) is fixedly arranged on one of the first connecting end (11) and the second connecting end (21);

a hinge seat (32), wherein the hinge seat (32) is fixedly arranged on the other, and the height of the hinge axis of the hinge seat (32) is higher than that of the hook relative to the outer peripheral surface (40);

one end of the swing arm (33) is hinged to the hinge seat (32), and the other end of the swing arm (33) swings around the hinge axis of the hinge seat (32); and

a cantilever (34), the cantilever (34) comprising a first end (341) hinged to the swing arm (33) and a second end (342) that can be hooked to the hook (31);

under the condition that the first connecting end (11) is in butt joint with the second connecting end (21), when the swing arm (33) swings to one side of the hook (31), the distance between the first end (341) of the cantilever (34) and the hook (31) is smaller than the length of the cantilever (34), and when the swing arm (33) swings to the opposite side of the hook (31), the distance between the first end (341) of the cantilever (34) and the hook (31) is larger than the length of the cantilever (34).

10. Pipeline connecting structure according to claim 9, characterized in that a magnetic member (331) is fixedly arranged at one end of the swing arm (33) far away from the hinge seat (32), and the magnetic member (331) is used for being adsorbed on the outer peripheral surface (40) when the swing arm (33) swings to the opposite side of the hook (31).