CN212298051U - Quick-connection expansion joint assembly - Google Patents
Quick-connection expansion joint assembly Download PDFInfo
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- CN212298051U CN212298051U CN202022118147.4U CN202022118147U CN212298051U CN 212298051 U CN212298051 U CN 212298051U CN 202022118147 U CN202022118147 U CN 202022118147U CN 212298051 U CN212298051 U CN 212298051U
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Abstract
The utility model discloses a quick connection expansion joint component, which comprises an outer connecting pipe and an inner connecting pipe which are sleeved inside and outside, and also comprises an extrusion sleeve; the external connecting pipe is of a stepped structure formed by connecting a small-diameter pipe and a large-diameter pipe, and a convex ring is formed on the outer wall of the tail end of the large-diameter pipe; the extrusion sleeve is nested between the large-diameter pipe and the inner connecting pipe, the sealing ring is arranged between the end face of the extrusion sleeve and the connecting face of the large-diameter pipe and the small-diameter pipe, the outer wall of one end, far away from the small-diameter pipe, of the extrusion sleeve forms a connecting ring, the connecting ring is arranged on the outer side of the convex ring, and the connecting ring is fixedly connected with the convex ring through the quick connecting clamp chain. The utility model provides a quick connection telescopic joint component, which is suitable for the special condition that the length of a certain section of pipeline can not be completely determined in the connection process of vacuum pipelines, and reduces the possibility of damage of the telescopic joint component; the possibility of unqualified system sealing is reduced; the replacement time of the expansion joint assembly is reduced; the workload of workers is reduced.
Description
Technical Field
The utility model belongs to vacuum tube connects the field, concretely relates to quick connect telescopic joint subassembly.
Background
At present, the common telescopic joint subassembly at home and abroad generally uses flange joint, and when using in the pipeline that needs often to dismantle, this kind of connected mode dismouting step is loaded down with trivial details, and need fasten a plurality of bolts, and the fastening volume is inhomogeneous and then leads to the leak source to cause the unqualified condition of system vacuum easily to appear, and dismouting flange telescopic joint requires highly to operating personnel.
In addition, common telescopic joint subassembly generally uses flange joint, if certain telescopic joint position needs the dismouting in the vacuum system, often appears the leak source, needs dismouting many times, not only every dismouting all needs the vacuum to visit the hourglass, still can appear the tight fastening volume of bolt inhomogeneous and lead to sealed pad to damage, and then change whole telescopic joint subassembly.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a propose in order to overcome the shortcoming that exists among the prior art, its purpose provides a quick connection telescopic joint subassembly.
The utility model discloses a realize through following technical scheme:
a quick connection expansion joint assembly comprises an external connecting pipe, an internal connecting pipe and an extrusion sleeve, wherein the external connecting pipe and the internal connecting pipe are sleeved with the internal connecting pipe and the external connecting pipe respectively; the external connecting pipe is of a stepped structure formed by connecting a small-diameter pipe and a large-diameter pipe, and a convex ring is formed on the outer wall of the tail end of the large-diameter pipe; the extrusion sleeve is nested between the large-diameter pipe and the inner connecting pipe, the sealing ring is arranged between the end face of the extrusion sleeve and the connecting face of the large-diameter pipe and the small-diameter pipe, the outer wall of one end, far away from the small-diameter pipe, of the extrusion sleeve forms a connecting ring, the connecting ring is arranged on the outer side of the convex ring, and the connecting ring is fixedly connected with the convex ring through the quick connecting clamp chain.
In the above technical solution, the outer diameter of the inner connecting pipe is in clearance fit with the inner diameter of the small-diameter pipe.
In the above technical scheme, the outer diameter of the sealing ring is equal to the inner diameter of the large-diameter pipe, and the inner diameter of the sealing ring is equal to the inner diameter of the small-diameter pipe.
In the technical scheme, the sum of the length of the extrusion sleeve and the thickness of the sealing ring is greater than the length of the large-diameter pipe.
In the above technical scheme, an end face of the convex ring on a side close to the small-diameter pipe is an inclined plane.
In the above technical solution, an edge of an end surface of the connection ring on a side away from the small-diameter pipe forms an inclined surface.
The utility model has the advantages that:
the utility model provides a quick connection telescopic joint component, which is suitable for the special condition that the length of a certain section of pipeline can not be completely determined in the connection process of vacuum pipelines, and reduces the possibility of damage of the telescopic joint component; the possibility of unqualified system sealing is reduced; the replacement time of the expansion joint assembly is reduced; the workload of workers is reduced.
Drawings
Fig. 1 is a schematic sectional view of a quick connect expansion joint assembly according to the present invention.
Wherein:
1 external connecting pipe
11 small diameter end
12 big diameter end
13 convex ring
2 inner connecting pipe
3 sealing ring
4 extruding sleeve
41 connecting the rings.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention is further described below by referring to the drawings of the specification and the detailed description.
As shown in fig. 1, a quick connection expansion joint assembly comprises an external connection pipe 1 and an internal connection pipe 2 which are sleeved inside and outside, and an extrusion sleeve 4; the external connecting pipe 1 is of a stepped structure formed by connecting a small-diameter pipe 11 and a large-diameter pipe 12, and a convex ring 13 is formed on the outer wall of the tail end of the large-diameter pipe 12; the extrusion sleeve 4 is nested between the large-diameter pipe 12 and the inner connecting pipe 2, the sealing ring 3 is arranged between the end face of the extrusion sleeve 4 and the connecting faces of the large-diameter pipe 12 and the small-diameter pipe 11, the outer wall of one end, far away from the small-diameter pipe 11, of the extrusion sleeve 4 forms a connecting ring 41, the connecting ring 41 is arranged on the outer side of the convex ring 13, and the connecting ring 41 is fixedly connected with the convex ring 13 through a quick-connection clamp chain.
The outer diameter of the inner joint pipe 2 is in clearance fit with the inner diameter of the small-diameter pipe 11.
The outer diameter of the sealing ring 3 is equal to the inner diameter of the large-diameter pipe 12, and the inner diameter of the sealing ring is equal to the inner diameter of the small-diameter pipe 11.
The sealing ring 3 is a compressible rubber mat.
The sum of the length of the extrusion sleeve 4 and the thickness of the sealing ring 3 is larger than the length of the large-diameter pipe 12.
The end face of the convex ring 13 close to one side of the small-diameter pipe 11 is an inclined plane, so that the installation of the quick-connecting clamp chain is facilitated.
The edge of the end face of the connecting ring 41 on the side far away from the small-diameter pipe 11 forms an inclined plane, so that the quick-connecting clamping chain is convenient to install.
And polishing the contact part of the external connecting pipe 1 and the sealing ring 3.
Since the length of the extension of the inner joint 2 into the small diameter pipe 11 determines the extension range of the expansion joint assembly, the outer surface of the inner joint 2 extending into the small diameter pipe 11 may be polished to fit the seal.
The utility model discloses a use method:
the four components are assembled as shown in the first drawing, and the external connecting pipe 1 and the internal connecting pipe 2 correspond to two sections of pipelines to be connected; the relative position between the external connecting pipe 1 and the internal connecting pipe 2 is adjusted to meet the requirement of the system on the length of two connected pipelines, the common quick-connecting clamp chain is used for clamping the convex ring 13 and the connecting ring 41 to provide a plane extrusion force for the sealing ring 3, and the sealing ring 3 simultaneously expands the contact part of the external connecting pipe 1 and the internal connecting pipe 2, so that the aim of sealing the connecting pipelines of the external connecting pipe 1 and the internal connecting pipe 2 is fulfilled.
The utility model realizes the uniform extrusion of the sealing gasket by the vacuum fast connecting structure, and achieves the purpose of reducing the damage possibility of the expansion joint component; the purpose of pipeline sealing is realized in a surface extrusion expansion mode; the purpose of quick assembly and disassembly is realized in a quick connection mode, and the possibility of damage of the expansion joint component is effectively reduced; the possibility of unqualified system sealing is reduced; the replacement time of the expansion joint assembly is reduced; the workload of workers is reduced.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (6)
1. The utility model provides a quick-connect telescopic joint subassembly, includes that the overcoat is established outward and is managed (1) and interior union coupling (2), its characterized in that: the device also comprises an extrusion sleeve (4); the external connecting pipe (1) is of a step-shaped structure formed by connecting a small-diameter pipe (11) and a large-diameter pipe (12), and a convex ring (13) is formed on the outer wall of the tail end of the large-diameter pipe (12); the extrusion sleeve (4) is nested between the large-diameter pipe (12) and the inner connecting pipe (2), a sealing ring (3) is arranged between the end face of the extrusion sleeve (4) and the connecting faces of the large-diameter pipe and the small-diameter pipe (12) and (11), the outer wall of one end, far away from the small-diameter pipe (11), of the extrusion sleeve (4) forms a connecting ring (41), the connecting ring (41) is arranged on the outer side of the convex ring (13), and the connecting ring (41) is fixedly connected with the convex ring (13) through a fast connecting clamp chain.
2. The quick connect telescopic joint assembly of claim 1, wherein: the outer diameter of the inner connecting pipe (2) is in clearance fit with the inner diameter of the small-diameter pipe (11).
3. The quick connect telescopic joint assembly of claim 1, wherein: the outer diameter of the sealing ring (3) is equal to the inner diameter of the large-diameter pipe (12), and the inner diameter of the sealing ring is equal to the inner diameter of the small-diameter pipe (11).
4. The quick connect telescopic joint assembly of claim 1, wherein: the sum of the length of the extrusion sleeve (4) and the thickness of the sealing ring (3) is greater than the length of the large-diameter pipe (12).
5. The quick connect telescopic joint assembly of claim 1, wherein: the end surface of the convex ring (13) close to one side of the small-diameter pipe (11) is an inclined surface.
6. The quick connect telescopic joint assembly of claim 1, wherein: the edge of the end face of the connecting ring (41) on the side far away from the small-diameter pipe (11) forms an inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022118147.4U CN212298051U (en) | 2020-09-24 | 2020-09-24 | Quick-connection expansion joint assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022118147.4U CN212298051U (en) | 2020-09-24 | 2020-09-24 | Quick-connection expansion joint assembly |
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| Publication Number | Publication Date |
|---|---|
| CN212298051U true CN212298051U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022118147.4U Active CN212298051U (en) | 2020-09-24 | 2020-09-24 | Quick-connection expansion joint assembly |
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|---|---|
| CN (1) | CN212298051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066118A (en) * | 2020-09-24 | 2020-12-11 | 核工业理化工程研究院 | Quick connect expansion joint assembly |
-
2020
- 2020-09-24 CN CN202022118147.4U patent/CN212298051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066118A (en) * | 2020-09-24 | 2020-12-11 | 核工业理化工程研究院 | Quick connect expansion joint assembly |
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