CN111520562A - Flange connecting device for improving stability of composite pipe structure - Google Patents
Flange connecting device for improving stability of composite pipe structure Download PDFInfo
- Publication number
- CN111520562A CN111520562A CN202010545665.6A CN202010545665A CN111520562A CN 111520562 A CN111520562 A CN 111520562A CN 202010545665 A CN202010545665 A CN 202010545665A CN 111520562 A CN111520562 A CN 111520562A
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- CN
- China
- Prior art keywords
- pipe
- composite
- groove wall
- connecting piece
- composite pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/14—Flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
- F16L23/0286—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the shoulder not being formed from the pipe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to a flange connecting device for improving the stability of a composite pipe structure, which comprises at least two flanges and a sealing element, wherein the sealing element is assembled on the connecting end surfaces of the two composite pipes; the connecting end of the composite pipe is provided with a mounting groove, the groove wall of the mounting groove adjacent to the sealing element is a near groove wall, the groove wall deviating from the sealing element is a far groove wall, and the height of the near groove wall is less than or equal to that of the far groove wall; the mounting groove is provided with a connecting piece in a matching mode, the connecting piece is buckled on the top edge of the near groove wall, the side wall of the flange is connected with the connecting piece in a pressing mode, and the two composite pipes are connected in a locking mode through the flange. The connecting device provided by the invention has the advantages that the end part of the composite pipe does not need to be provided with a protruding structure, and the flange, the connecting piece and the composite pipe are in a separated state, so that the pipe wall of the pipeline is protected during transportation or storage, the damage rate of the pipe wall and the deformation rate of the end part of the pipeline are effectively reduced, the connection precision of the end part of the pipeline is ensured, and the sealing property is ensured.
Description
Technical Field
The invention relates to a connecting device of pipelines, in particular to a flange type connecting device of a composite pipe.
Background
In the prior art, a plurality of sections of composite pipes are connected into a complete pipeline in a flange fixed connection mode. The flange connection mode requires that the end parts of the composite pipes are fixedly provided with force applying components (namely, connecting rings in the technology), and the force applying components at the end parts of the two composite pipes are clamped when the flanges are locked so as to achieve the pipeline connection effect. Because a construction site is rarely provided with complete auxiliary welding equipment, the end parts of the existing composite pipes are fixedly welded with force-applying parts before delivery. The force-applying component is clamped between the flanges, so the outer diameter of the force-applying component is necessarily larger than that of the composite pipe, namely, the two ends of the composite pipe are in a protruding structure, and the flanges are required to be assembled on the composite pipe before the force-applying component is arranged. The composite pipes are in a stacked state in transportation or storage, the contact surface of two adjacent composite pipes is mostly only the circumferential surface of the force application part or the circumferential surface of the flange, and the circumferential surface area of the force application part or the circumferential surface area of the flange is small, but the weight of the composite pipe is large, so that the pressure intensity of the joint of the two adjacent composite pipes is too high, the outer surface of the composite pipe is crushed, the force application part is pressed and deformed, and the like. Particularly, in the transportation process, the damage degree of the composite pipe and the force application part is heavier due to the jolt of the road surface, so that the service life of the composite pipe and the sealing precision between the pipeline connections are greatly influenced, and further, the defects of high maintenance cost, poor use effect and the like are caused.
Disclosure of Invention
The invention provides a flange type connecting device of a composite pipe, which aims to solve the problems that the surface of a pipeline is easily crushed during transportation or storage, the sealing effect between pipelines is influenced and the like in the conventional composite pipe connecting structure.
The invention adopts the following technical scheme:
improve flange joint device of compound pipe structural stability, including two at least flanges and a sealing member, the sealing member assembles on the connection terminal surface of two compound pipes, and the sealing member is sealing washer or annular seal pad. The composite pipe connecting end is provided with a mounting groove, the groove wall of the mounting groove adjacent to the sealing element is a near groove wall, the groove wall departing from the sealing element is a far groove wall, and the height of the near groove wall is smaller than or equal to that of the far groove wall. The mounting groove is provided with a connecting piece in a matching mode, the connecting piece is buckled on the top edge of the near groove wall, the side wall of the flange is connected with the connecting piece in a pressing mode, and the two composite pipes are connected in a locking mode through the flange.
More specifically:
the connecting piece is in a semicircular ring shape, the cross section of the connecting piece can be in a 7 shape, and the cross section of the connecting piece can also be in a T shape. The end part of each composite pipe is preferably provided with two connecting pieces which are spliced into a circular ring structure.
The end part of the composite pipe is fixedly provided with a connecting pipe which is formed by integrally connecting an inner pipe and an outer pipe, the inner end of the inner pipe is fixedly inserted into the composite pipe, the outer pipe is fixedly sleeved on the outer wall of the composite pipe, and the connecting surface of the composite pipe and the outer pipe is provided with two rubber sealing rings; the outer end of the inner pipe is sleeved with a connecting ring, the connecting ring and the inner pipe are welded into a whole, the connecting ring, the inner pipe and the outer pipe jointly enclose to form the mounting groove, and the connecting piece is buckled on the connecting ring.
The composite pipe is a steel skeleton polyethylene plastic composite pipe or a steel wire mesh skeleton Plastic (PE) composite pipe.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the connecting device provided by the invention has the advantages that the end part of the composite pipe does not need to be provided with a protruding structure, so that the pipe wall of the pipeline is protected during transportation or storage, the breakage rate of the pipe wall and the deformation rate of the end part of the pipeline are effectively reduced, the connecting precision of the end part of the pipeline is ensured, and the sealing performance is guaranteed; in addition, the flange, the connecting piece and the composite pipe of the connecting device are in a separated state, and can be separately placed during transportation and storage, so that stacking of all the parts is facilitated, occupied space is reduced, the number of the composite pipes which can be accommodated in the space of unit volume is more, protection of all the parts is facilitated, and the utilization rate of the space is improved; in addition, the connecting device of the embodiment has a simple structure and is easy to produce.
Drawings
Fig. 1 is a schematic structural diagram of a connection device according to a first embodiment of the invention.
Fig. 2 is a schematic structural diagram of a connecting device according to a second embodiment of the invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The first implementation mode comprises the following steps:
referring to fig. 1, a flange connection device for improving the stability of a composite pipe structure is used for fixedly connecting the ends of two composite pipes 1. The connecting device comprises two flanges 2, four connecting pieces 3 and a sealing 4. The connecting piece 3 is preferably semicircular, and the cross section of the connecting piece 3 is 7-shaped or T-shaped. The end part of each composite pipe 1 is preferably provided with two connecting pieces 3, and the two connecting pieces 3 are spliced into a circular ring structure. The sealing element 4 is assembled on the connecting end surfaces of the two composite pipes 1, and the sealing element 4 adopts a rubber O-shaped sealing ring or an annular sealing gasket. The connecting end of the composite pipe 1 is provided with a mounting groove 10, the groove wall of the mounting groove 10 adjacent to the sealing element 4 is a near groove wall 101, the groove wall departing from the sealing element 4 is a far groove wall 102, and the height of the near groove wall 101 is less than or equal to that of the far groove wall 102. The mounting groove 10 is provided with a connecting piece 3, the connecting piece 3 is buckled on the top edge of the near groove wall 101, the side wall of the flange 2 is connected with the connecting piece 3 in a pressing mode, and the two composite pipes 1 are connected in a locking mode through the flange 2. Finally, the flange 2 connection device of the present invention is preferably applied to steel skeleton polyethylene plastic composite pipes or steel mesh skeleton Plastic (PE) composite pipes.
The use method of the flange connecting device comprises the following steps: the end parts of two composite pipes 1 are butted, and a sealing element 4 is arranged on the connecting end surface of the two composite pipes 1; then the flange 2 is arranged on the composite pipe 1, the two connecting pieces 3 are buckled into the mounting groove 10, and the other composite pipe 1 is also operated in the same way; finally, the flanges 2 at the ends of the two composite pipes 1 are locked and connected through bolts 21, and the connection state is shown in fig. 1.
Second embodiment
Referring to fig. 2 and 3, the present embodiment differs from the first embodiment in that: in the present embodiment, a connection pipe 5 is fixedly provided at each end of the composite pipe 1, and the connection pipe 5 is preferably made of a material having a high structural strength and being not easily corroded. Referring to fig. 2, the connection pipe 5 is formed by integrally connecting an inner pipe 51 and an outer pipe 52, the inner end of the inner pipe 51 is inserted into the composite pipe 1, the outer pipe 52 is sleeved on the outer wall of the composite pipe 1, a tooth socket 50 is arranged on the outer surface of the inner end of the inner pipe 51, a tooth socket 50 is also arranged on the inner side wall of the outer pipe 52, two rubber sealing rings 53 are arranged on the connection surface of the composite pipe 1 and the outer pipe 52, and an external acting force is applied to enable the plastic part of the inner surface and the outer surface of the composite pipe 1 to be sunk into the tooth socket 50, so that the composite pipe. With continued reference to fig. 2 and 3, the outer end of the inner tube 51 is sleeved with a connection ring 54, the connection ring 54 is welded with the inner tube 51 as a whole, the connection ring 54, the inner tube 51 and the outer tube 52 together enclose the installation groove 10 according to one embodiment, and the connection member 3 is fastened on the connection ring 54.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (5)
1. The flange connecting device for improving the stability of the composite pipe structure comprises a sealing element and at least two flanges, wherein the sealing element is assembled on the connecting end surfaces of two composite pipes; the method is characterized in that: the connecting end of the composite pipe is provided with a mounting groove, the groove wall of the mounting groove adjacent to the sealing element is a near groove wall, the groove wall deviating from the sealing element is a far groove wall, and the height of the near groove wall is less than or equal to that of the far groove wall; the mounting groove is provided with a connecting piece in a matching way, the connecting piece is buckled on the top edge of the near groove wall, the side wall of the flange is connected with the connecting piece in a pressing way, and the two composite pipes are connected in a locking way through the flange; the end fixing of compound pipe is equipped with the connecting pipe, and the connecting pipe is formed by inner tube and outer tube body coupling, and the inner of this inner tube is fixed to be inserted and is located in the compound pipe, and this outer tube is fixed to be located on this compound pipe outer wall, and the outer pot head of this inner tube is equipped with the go-between, and the go-between is as an organic whole with the inner tube welding, and go-between, inner tube and outer tube enclose jointly and form the mounting groove, the connecting piece is detained and.
2. A flanged connection for improving the stability of a composite tubular structure as claimed in claim 1, wherein: the connecting piece is semicircular, and the cross section of the connecting piece is 7-shaped.
3. A flanged connection for improving the stability of a composite tubular structure as claimed in claim 1, wherein: the sealing element is a sealing ring or an annular sealing gasket.
4. A flanged connection for improving the stability of a composite tubular structure as claimed in claim 1, wherein: and a rubber sealing ring is arranged on the connecting surface of the composite pipe and the outer pipe.
5. A flanged connection for improving the stability of a composite tubular structure as claimed in claim 1, wherein: the composite pipe is a steel skeleton polyethylene plastic composite pipe or a steel wire mesh skeleton plastic composite pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545665.6A CN111520562A (en) | 2020-06-16 | 2020-06-16 | Flange connecting device for improving stability of composite pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545665.6A CN111520562A (en) | 2020-06-16 | 2020-06-16 | Flange connecting device for improving stability of composite pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111520562A true CN111520562A (en) | 2020-08-11 |
Family
ID=71907014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010545665.6A Withdrawn CN111520562A (en) | 2020-06-16 | 2020-06-16 | Flange connecting device for improving stability of composite pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111520562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576848A (en) * | 2020-12-31 | 2021-03-30 | 安徽华塑股份有限公司 | PVC coupling ageing resistance protector |
-
2020
- 2020-06-16 CN CN202010545665.6A patent/CN111520562A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576848A (en) * | 2020-12-31 | 2021-03-30 | 安徽华塑股份有限公司 | PVC coupling ageing resistance protector |
| CN112576848B (en) * | 2020-12-31 | 2022-06-21 | 安徽华塑股份有限公司 | PVC coupling ageing resistance protector |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200811 |
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| WW01 | Invention patent application withdrawn after publication |