CN217402031U - Connecting structure for connection between medium and high pressure pipelines - Google Patents
Connecting structure for connection between medium and high pressure pipelines Download PDFInfo
- Publication number
- CN217402031U CN217402031U CN202122154549.4U CN202122154549U CN217402031U CN 217402031 U CN217402031 U CN 217402031U CN 202122154549 U CN202122154549 U CN 202122154549U CN 217402031 U CN217402031 U CN 217402031U
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- high pressure
- nut
- compression nut
- pressure pipe
- connection
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- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a connection structure that is used for connection between medium and high pressure pipeline, it includes: the middle-high pressure pipe comprises a middle-high pressure pipe body, wherein an upper external thread and a lower external thread are respectively formed at the upper end and the lower end of the middle-high pressure pipe body; the upper screw sleeve is connected with an upper compression nut; the lower thread insert is connected with a lower compression nut; and the middle-high pressure pipe body is provided with a locking nut in a penetrating manner, the locking nut is positioned between the upper compression nut and the lower compression nut, and the locking nut is in threaded connection with the lower compression nut. The utility model discloses can not receive under the condition of space restriction, with low costs, safe and reliable's limiting mechanism restriction is through the relative rotation between two C & T articulate spare parts, increases a lock nut at last gland nut under and between the gland nut, provides the pretightning force, increases restriction pivoted frictional force.
Description
Technical Field
The utility model relates to a tube coupling technical field especially relates to a connection structure that is used for connection between medium and high pressure pipeline.
Background
At present, C & T joints are commonly adopted for connecting medium and high pressure pipelines, but the C & T joints have the problem of relative rotation between two parts, so that an additional mechanism is required to limit the relative rotation of the two connected parts to a certain extent; in some cases, the use of a restraining mechanism can increase cost; if there is unavoidable mechanical vibration, if the mechanism is not constrained, the mechanical vibration will reduce the life and reliability of the connection, and seriously affect the sealing of the connection.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problem of the prior art, the utility model provides a connection structure for connection between the medium and high pressure pipeline solves the C & T and connects the medium and high pressure pipe connection and have the rigidity problem that can rotate relatively between two spare parts.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
a connection structure for connection between medium-high pressure pipelines, comprising: the middle-high pressure pipe comprises a middle-high pressure pipe body, wherein an upper external thread and a lower external thread are respectively formed at the upper end and the lower end of the middle-high pressure pipe body; the upper screw sleeve is connected with an upper compression nut; the lower thread insert is connected with a lower compression nut; and the middle-high pressure pipe body is provided with a locking nut in a penetrating manner, the locking nut is positioned between the upper compression nut and the lower compression nut, and the locking nut is in threaded connection with the lower compression nut.
Furthermore, the upper end face of the locking nut is tightly attached to the lower end face of the upper compression nut.
(III) advantageous effects
The utility model has the advantages that: the limiting mechanism is low in cost, safe and reliable and can limit relative rotation between parts connected through two C & T joints under the condition of not being limited by space, and a locking nut is additionally arranged between an upper compression nut and a lower compression nut to provide pretightening force and increase friction force for limiting rotation.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
The utility model discloses a connection structure that is used for connection between the medium and high pressure pipeline of an embodiment, as shown in fig. 1, it includes: the device comprises a middle-high pressure pipe body 1, wherein an upper external thread and a lower external thread are respectively formed at the upper end and the lower end of the middle-high pressure pipe body 1, the upper external thread is connected with an upper threaded sleeve 2, and the lower external thread is connected with a lower threaded sleeve 3; the upper screw sleeve 2 is connected with an upper compression nut 4; the lower thread insert 3 is connected with a lower compression nut 5; and a locking nut 6 is arranged on the middle-high pressure pipe body 1 in a penetrating manner, the locking nut 6 is positioned between the upper compression nut 4 and the lower compression nut 5, the locking nut 6 is in threaded connection with the lower compression nut 5, and the upper end face of the locking nut 6 is tightly attached to the lower end face of the upper compression nut 4.
When the high-pressure pipe is implemented, the upper threaded sleeve 2 is screwed into the upper end part of the medium-high pressure pipe body 1, and the upper compression nut 4 is screwed and fixed on the first workpiece 9 in a C & T joint connection mode; the same lower compression nut 5 is used for screwing the middle-high pressure pipe body 1 with the other end screwed into the lower screw sleeve 3 and fixing the middle-high pressure pipe body on the second workpiece 10, one end of the lower compression nut 5 is provided with C & T joint threads, the other end is provided with locking threads of the locking nut 6, before the step, the locking nut 6 is screwed into the lower compression nut 5, the required relative position of the first workpiece 9 and the second workpiece 10 is adjusted, the locking nut 6 is screwed, the first workpiece 9 and the second workpiece 10 are fixed on the required relative position by means of the friction force between the upper end face of the locking nut 6 and the lower end face of the upper compression nut 4, the rotation between the first workpiece 9 and the second workpiece 10 is limited, and certain anti-vibration capability is achieved.
The above mentioned is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be included in the scope of the present invention.
Claims (2)
1. A connection structure for connection between medium and high pressure pipes, characterized by comprising: the device comprises a middle-high pressure pipe body (1), wherein an upper external thread and a lower external thread are respectively formed at the upper end and the lower end of the middle-high pressure pipe body (1), the upper external thread is connected with an upper threaded sleeve (2), and the lower external thread is connected with a lower threaded sleeve (3); the upper screw sleeve (2) is connected with an upper compression nut (4); the lower thread insert (3) is connected with a lower compression nut (5); and a locking nut (6) is arranged on the middle-high pressure pipe body (1) in a penetrating manner, the locking nut (6) is positioned between the upper compression nut (4) and the lower compression nut (5), and the locking nut (6) is in threaded connection with the lower compression nut (5).
2. A connecting structure for connection between medium and high pressure pipes according to claim 1, wherein: the upper end surface of the locking nut (6) is tightly attached to the lower end surface of the upper compression nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154549.4U CN217402031U (en) | 2021-09-07 | 2021-09-07 | Connecting structure for connection between medium and high pressure pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154549.4U CN217402031U (en) | 2021-09-07 | 2021-09-07 | Connecting structure for connection between medium and high pressure pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217402031U true CN217402031U (en) | 2022-09-09 |
Family
ID=83132264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122154549.4U Active CN217402031U (en) | 2021-09-07 | 2021-09-07 | Connecting structure for connection between medium and high pressure pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217402031U (en) |
-
2021
- 2021-09-07 CN CN202122154549.4U patent/CN217402031U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240115 Address after: 350299 No. 8, Dongjiang West Road, Liren Industrial Zone, Hangcheng street, Changle District, Fuzhou City, Fujian Province Patentee after: Fujian Snowman Compressor Co.,Ltd. Address before: Room 505, vocational education and training center, Changle vocational secondary school, No. 1 Houde, Changle District, Fuzhou, Fujian 350299 Patentee before: Fuzhou Xugu Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |