CN110886917A - Locking flange device for hard pipe connection - Google Patents
Locking flange device for hard pipe connection Download PDFInfo
- Publication number
- CN110886917A CN110886917A CN201911300451.6A CN201911300451A CN110886917A CN 110886917 A CN110886917 A CN 110886917A CN 201911300451 A CN201911300451 A CN 201911300451A CN 110886917 A CN110886917 A CN 110886917A
- Authority
- CN
- China
- Prior art keywords
- pipe
- hard pipe
- locking flange
- diameter
- joint body
- 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.)
- Withdrawn
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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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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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
- F16L23/0283—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 collar being integral with 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
A hard pipe connection locking flange device is characterized in that the diameter of a pipe orifice at one end of a formed hard pipe is larger than the whole pipe diameter, and the inner wall of the pipe orifice diameter is of an inner arc structure; one end of the joint body is provided with an elastic outer arc structure and a sealing groove, the sealing groove is provided with a sealing ring, and the size of the outer arc is matched with that of the inner arc of the formed hard pipe; the outer part of the formed hard pipe close to the caliber of the large pipe is provided with a locking flange which is connected with the joint body. This device simple structure, convenient operation through the cooperation of cambered surface shaping and static sealing member, forms the radial 360 degrees adjustable connected modes of elasticity and has avoided the welding process between hard tube and the joint.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a locking flange device for hard pipe connection.
Background
Hydraulic systems are known which act to increase force by varying pressure. A complete hydraulic system consists of five parts, namely a power element, an actuator, a control element, an auxiliary element (attachment) and hydraulic oil. Hydraulic systems can be divided into two categories: the hydraulic system adopts hard pipes to connect other large-scale equipment and a press machine. Hard pipes are an important component of auxiliary elements (accessories) of hydraulic systems. Is an important pivot for connecting the control element and the execution element. The hard pipe pipeline connecting technology mainly comprises a hard pipe, a pipe joint assembly, a sealing element and a bolt assembly. The following problems exist in the actual application of the hard pipe on the market: firstly, need the welding to accomplish at the connection of pipe with the pipe, but can leave impurity such as remaining welding slag, oxide skin and can't get rid of, lead to flowing through oil from the pipeline and receive the pollution. So that the service life is greatly reduced. Secondly, in the process of hard pipe connection, a worker is required to weld 360 degrees, so that the construction difficulty is high, the quality is difficult to guarantee, and the requirement condition on the quality of the worker is high. Thirdly, in the actual process, due to the self weight and the field factors, the problems of transverse force generation at the joint and the like are easily caused.
Disclosure of Invention
The invention aims to solve the problems that impurities are welded in a traditional hard pipe connection mode, welding assembly difficulty is high, long wires are prone to cracking and the like.
In order to achieve the purpose, the invention adopts the following technical scheme: a locking flange device for connecting a hard pipe comprises a formed hard pipe (1), a locking flange (2), a sealing ring (3) and a joint body (4);
the diameter of a pipe orifice at one end of the forming hard pipe (1) is larger than the whole pipe diameter, and the inner wall of the pipe orifice diameter is of an inner circular arc structure; one end of the joint body (4) is provided with an elastic outer arc structure and a sealing groove, the sealing groove is provided with the sealing ring (3), and the size of the outer arc is matched with that of the inner arc of the forming hard pipe (1);
the locking flange (2) is arranged on the outer portion, close to the large pipe caliber, of the forming hard pipe (1), and the locking flange (2) is connected with the joint body (4).
The invention has the beneficial effects that: the device is simple in structure and convenient to operate, and by the cooperation of cambered surface forming and static sealing elements, an elastic radial 360-degree adjustable connection mode is formed, so that the welding procedure between the hard pipe and the joint is avoided, the mechanical property of the hard pipe is kept to the maximum extent, welding slag and oxide skin caused by the welding procedure are avoided, the cleanliness in the pipeline is improved, and the safety accident caused by welding on site is reduced. The combination of several aspects has improved pipeline installation effectiveness and long service life greatly, has reduced because of the pipeline fracture leakage risk that the produced radial force of gravity causes.
Drawings
Fig. 1 is a schematic structural diagram of a hard pipe connection locking flange device according to the present invention.
Fig. 2 is a partially enlarged view of the hard pipe connection locking flange device according to the present invention.
Fig. 3 is a partially enlarged view of the hard pipe connection locking flange device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, the hard pipe connection locking flange device comprises a formed hard pipe 1; a locking flange 2; a seal ring 3; a joint body 4; radial gravity post state 5.
The formed hard tube 1 is in an inner arc state, the joint body 4 is in an outer arc state, and the groove is processed to form an elastic arc surface seal for assembly. The sealing element is used for elastic sealing, and the inner arc and the outer arc solve the problem of radial droop caused by gravity factors after installation.
When the sealing device is used, the locking flange 2 is firstly sleeved on the precise seamless steel pipe to perform inner arc extrusion forming, and the corresponding sealing element is selected to be installed in the groove of the outer arc surface of the joint body. And finally, connecting flanges at two ends.
During assembly, the hard tube is extruded to form an arc surface, and the rear end is assembled with a locking forming flange and a connector to be connected. The hard pipe is a precise seamless steel pipe, and is pre-assembled with a locking forming flange and then subjected to cold extrusion cambered surface forming at the tail end of the pipe. Locking to the oil port end or pipe end is done by bolts.
A hard pipe connection technique is free of welding, and can be connected in a plurality of ways at any length, long wires can be assembled on site conveniently, and the connection is resistant to radial universal fine adjustment. The pipeline is convenient to install and can overcome radial deflection influenced by gravity.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A hard pipe connection locking flange device is characterized by comprising a formed hard pipe (1), a locking flange (2), a sealing ring (3) and a joint body (4);
the diameter of a pipe orifice at one end of the forming hard pipe (1) is larger than the whole pipe diameter, and the inner wall of the pipe orifice diameter is of an inner circular arc structure; one end of the joint body (4) is provided with an elastic outer arc structure and a sealing groove, the sealing groove is provided with the sealing ring (3), and the size of the outer arc is matched with that of the inner arc of the forming hard pipe (1);
the locking flange (2) is arranged on the outer portion, close to the large pipe caliber, of the forming hard pipe (1), and the locking flange (2) is connected with the joint body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300451.6A CN110886917A (en) | 2019-12-17 | 2019-12-17 | Locking flange device for hard pipe connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300451.6A CN110886917A (en) | 2019-12-17 | 2019-12-17 | Locking flange device for hard pipe connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886917A true CN110886917A (en) | 2020-03-17 |
Family
ID=69752186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911300451.6A Withdrawn CN110886917A (en) | 2019-12-17 | 2019-12-17 | Locking flange device for hard pipe connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886917A (en) |
-
2019
- 2019-12-17 CN CN201911300451.6A patent/CN110886917A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200317 |
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| WW01 | Invention patent application withdrawn after publication |