CN115451213A - Pipe end forming component for hydraulic pipeline connection - Google Patents
Pipe end forming component for hydraulic pipeline connection Download PDFInfo
- Publication number
- CN115451213A CN115451213A CN202211220059.2A CN202211220059A CN115451213A CN 115451213 A CN115451213 A CN 115451213A CN 202211220059 A CN202211220059 A CN 202211220059A CN 115451213 A CN115451213 A CN 115451213A
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- CN
- China
- Prior art keywords
- pipe
- steel pipe
- joint body
- end forming
- forming member
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/07—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections
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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 pipe end forming component for connecting a hydraulic pipeline, which comprises a joint body, a nut and a forming steel pipe, wherein the joint body is connected with the forming steel pipe by adopting a rigid 24-degree cone sealing structure, and a sealing ring is placed in a triangular sealing groove formed between the joint body and the forming steel pipe; and the nut is screwed on the joint body to tightly press the pressure-bearing surface at the rear end of the boss of the formed steel pipe. The invention adopts a rigid 24-degree cone sealing structure, the joint body and the nut can meet the DIN 2353 standard and can be directly screwed, so that the interfaces with 24 degrees of cone can be conveniently used in a unified way; the other end adopts an O-shaped sealing ring of FKM and can meet the requirement of extrusion ratio with the designed groove. The welding-free process has the advantages of compact structure, stable and reliable connection performance, reusability, simple and quick installation and the like, and the service performance of the welding-free process reaches the connection without leakage and pollution.
Description
Technical Field
The invention relates to a pipe end forming component for pipeline connection, in particular to a pipe end forming component for hydraulic pipeline connection.
Background
The ship piping system weldless connection technology is developed in the directions of large flow, high pressure impact resistance, adaptability to various material requirements and the like on the basis of meeting the development of high-tech technology. The welding-free process has the advantages of compact structure, stable and reliable connection performance, reusability, simple and quick installation and the like, and the service performance of the welding-free process reaches the connection leakage-free and pollution-free performance, and meets the requirements of future economic development.
The existing welding-free piping technology suitable for hydraulic piping mainly adopts a flared type and a clamping sleeve type, and the clamping sleeve type hydraulic piping adopts a single clamping sleeve type to buckle a steel pipe, namely, the clamping sleeve type hydraulic piping comprises a single clamping sleeve, a nut, a joint body and the like. At present, the hard pipe connection is generally connected by a clamping sleeve type connection, and the hard pipe connection has the advantages of mature technology and wide application; the price of the parts is relatively low; the pre-installation equipment is simple. But the defect is only suitable for pipeline connection below 42 mm; is not suitable for thin-wall steel pipes; the clamping sleeve can not be used for the working conditions of strong vibration, impact and pulse, and the pre-installation technical requirement of the clamping sleeve is high. The assembly method needs a high piping technology, large torque, damages to the steel pipe and can not be repeatedly disassembled.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a pipe end forming component for hydraulic pipeline connection, so that the best scheme for solving an effective way is normally provided for the application of zero-leakage and repeated disassembly hydraulic piping.
In order to solve the technical problems, the invention adopts the technical scheme that: a pipe end forming component for connecting a hydraulic pipeline comprises a joint body, a nut and a forming steel pipe, wherein the joint body is connected with the forming steel pipe through a rigid 24-degree cone sealing structure, and a sealing ring is placed in a triangular sealing groove formed between the joint body and the forming steel pipe; and the nut is screwed on the joint body to tightly press the bearing surface at the rear end of the boss of the formed steel pipe.
Further, the rigid 24-degree cone sealing structure is composed of a rigid cone sealing surface formed by matching a 24-degree cone hole in the joint body with a cone surface at the front end of a boss of the formed steel pipe.
Further, the taper of the rigid cone sealing surface is 12 degrees.
Furthermore, the taper angle of the conical surface at the front end of the boss of the formed steel pipe is 12 degrees.
Further, the pressure bearing face is an inclined face, and the angle of the inclined face is 45 degrees.
Furthermore, a sealing surface is arranged at the joint of the forming steel pipe and the sealing ring, and a 90-degree angle is formed between the sealing surface and the rigid conical sealing surface with the 12 tapers.
Further, the boss formed by the steel pipe is formed into two reinforcing layers.
Furthermore, the profiled bearing surface of steel pipe is equipped with assembly gap crescent moon groove.
Furthermore, the nut adopts a nut of DIN 2353 standard and can be directly screwed on the joint body.
Further, the sealing ring is an O-shaped sealing ring or a prismatic sealing ring.
The beneficial effects of the invention are:
1. the pipeline connection series adopts a rigid 24-degree cone sealing structure. Compared with the existing clamping sleeve and welding pipeline, the nut can meet the DIN 2353 standard and can be directly screwed, so that the interfaces with 24-degree taper can be uniformly used; the other end adopts an O-shaped sealing ring of FKM and can meet the requirement of extrusion ratio with the designed groove;
2. the device adopts the reliability of shaped steel pipe connection. The pipe can be reliably positioned even under a very high dynamic load, and even under the condition of undertightening, the connection reliability can be ensured, and the pipe cannot slide out;
3. the leakage path may be prevented only by the end bead seal used in the forming tube.
Drawings
FIG. 1 is a structural sectional view of a pipe end forming member for hydraulic line connection according to the present invention;
FIG. 2 is a partial view of the structure of a pipe end forming member for hydraulic line connection according to the present invention;
FIG. 3 is a view of a seal ring of the pipe end forming member for hydraulic line connection according to the present invention.
Detailed Description
In order to facilitate an understanding of the invention, reference will now be made in detail to a more complete description of the invention, an embodiment of which is illustrated in the accompanying drawings. The present invention may be implemented in various forms and is not limited to the present embodiment.
As shown in fig. 1 to 3, the pipe end forming member for connecting a hydraulic pipeline of the present invention includes a coupling body 1, a nut 2, and a seal ring 3.
The joint body 1 and the formed steel pipe 4 are hermetically connected by adopting a rigid 24-degree taper sealing structure, the joint body 1 and the nut 2 can meet the DIN 2353 standard and can be directly screwed, and the joint with the taper of 24 degrees of the joint body 1 can be conveniently and uniformly used; the other end adopts the FKM sealing ring 3 and can reach the extrusion ratio requirement with the designed groove, and the rubber ring seal of the pipe end used for forming the steel pipe 4 only can prevent a leakage channel. The shoulder of the end of the formed steel tube is insertable into the 24 ° taper of the fitting body, which results in a significant improvement in assembly performance and effective prevention of over-torquing. Due to the adoption of forward matching, the formed steel pipe can be reliably positioned even under high dynamic load, and even under underscrewing, the connection can be ensured to be reliable, and the formed steel pipe cannot slide out.
The nut 2 accords with DIN 2353 standard so as to be directly screwed, the sealing ring 3 is arranged between 24-degree conical spaces between the joint body 1 and the formed steel pipe 4, the technology belongs to a new technology in the field of hydraulic tubing, soft sealing can be carried out by forming extrusion action between the sealing groove and the sealing ring 3, and meanwhile, the joint body 1 acts on the sealing surface of the formed steel pipe 4 to carry out rigid sealing. And the nut 2 is matched with the pressure bearing area, so that the joint body 1 can be ensured to be screwed on the nut 2, and the sealing effect on the formed steel pipe 4 is formed.
The invention can perform soft sealing by the extrusion action formed by the sealing groove and the sealing ring 3, and simultaneously, the joint body 1 acts on the sealing surface of the formed steel pipe 4 to perform rigid sealing. And the clamping sleeve nut 2 is matched with the pressure-bearing area, so that the joint body 1 can be ensured to be screwed on the nut 2, and a sealing effect on the formed steel pipe 4 is formed. Wherein:
the joint body 1 acts on the formed steel pipe 4 to form a rigid sealing surface 6, and the angle of the rigid sealing surface 6 is 12 degrees. The nut 2 acts on the end face of the formed steel pipe 4 to form a pressure bearing face 7, and the angle of the pressure bearing face 7 is 45 degrees.
Triangular sealing grooves are formed on the surfaces of the joint body 1 and the formed steel pipe 4, and the grooves are sealed by a sealing ring 3.
After the formed steel pipe 4 is formed, the sealing surface 5 forms 90 degrees with the taper 12 degrees.
After the steel pipe is formed 4, two reinforcing layers 9 are formed.
After the steel pipe is formed 4, a crescent-shaped groove 8 with an assembly gap is formed.
After the steel pipe is formed 4, the taper angle of the sealing surface is 12 degrees.
The sealing ring 3 can be an O-shaped ring or a prismatic sealing ring, as shown in figure 3.
The above embodiments illustrate the embodiments of the present invention, and should not be construed as limiting the scope of the present invention, and the pipe end forming member connected to the hydraulic line of the present invention may be modified, therefore, the scope of the present invention should be determined by the appended claims.
Claims (10)
1. A pipe end shaping component for hydraulic pipeline connection is characterized in that: the joint body is connected with the formed steel pipe by adopting a rigid 24-degree cone sealing structure, and a sealing ring is placed in a triangular sealing groove formed between the joint body and the formed steel pipe; and the nut is screwed on the joint body to tightly press the pressure-bearing surface at the rear end of the boss of the formed steel pipe.
2. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: the rigid 24-degree cone sealing structure is composed of a rigid cone sealing surface formed by matching a 24-degree cone hole in a joint body with a cone surface at the front end of a boss of a formed steel pipe.
3. The pipe-end forming member for hydraulic line connection according to claim 2, wherein: the taper of the rigid cone sealing surface is 12 degrees.
4. The pipe end forming member for hydraulic line connection according to claim 2, wherein: the taper angle of the conical surface at the front end of the boss of the formed steel pipe is 12 degrees.
5. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: the pressure bearing face is an inclined face, and the angle of the inclined face is 45 degrees.
6. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: and a sealing surface is arranged at the joint of the formed steel pipe and the sealing ring, and a 90-degree angle is formed between the sealing surface and the rigid cone sealing surface with the 12-degree taper.
7. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: and the bosses formed by the steel pipes form two reinforcing layers.
8. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: the profiled bearing surface of steel pipe is equipped with assembly gap crescent moon groove.
9. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: the nut adopts DIN 2353 standard and can be screwed on the joint body directly.
10. The pipe-end forming member for hydraulic line connection according to claim 1, wherein: the sealing ring is an O-shaped sealing ring or a prismatic sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211220059.2A CN115451213A (en) | 2022-10-08 | 2022-10-08 | Pipe end forming component for hydraulic pipeline connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211220059.2A CN115451213A (en) | 2022-10-08 | 2022-10-08 | Pipe end forming component for hydraulic pipeline connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115451213A true CN115451213A (en) | 2022-12-09 |
Family
ID=84309282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211220059.2A Pending CN115451213A (en) | 2022-10-08 | 2022-10-08 | Pipe end forming component for hydraulic pipeline connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115451213A (en) |
-
2022
- 2022-10-08 CN CN202211220059.2A patent/CN115451213A/en active Pending
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