CN111322474B - Portable adjustable metal flange - Google Patents
Portable adjustable metal flange Download PDFInfo
- Publication number
- CN111322474B CN111322474B CN202010132080.1A CN202010132080A CN111322474B CN 111322474 B CN111322474 B CN 111322474B CN 202010132080 A CN202010132080 A CN 202010132080A CN 111322474 B CN111322474 B CN 111322474B
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- clamping
- wall
- clamping piece
- fixing
- fixed cover
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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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention provides a portable adjustable metal flange which comprises an upper clamping piece, a middle clamping piece and a lower clamping piece, wherein the upper end of the middle clamping piece is provided with the upper clamping piece in a clamping and fixing mode, the lower end of the middle clamping piece is provided with the lower clamping piece in a clamping and fixing mode, and the upper clamping piece and the lower clamping piece are of the same structure; the flange can solve the problems that the connection strength between the flange and the pipeline is not enough, two pipelines which are usually hung and connected are easy to slide relatively under the action of gravity when the two pipelines are connected with the lower end of the flange through the flange, and further the two pipelines fall off to influence the connection between the pipelines in the prior flange connection process; and b, the distance between the two pipeline interfaces is uncertain, and the interfaces of two pipelines with larger distance are difficult to be connected through the flange on the market, so that the problems of low applicability and the like of the existing flange are caused.
Description
Technical Field
The invention relates to the technical field of connecting pieces, in particular to a portable adjustable metal flange.
Background
A flange, also known as a flange collar or flange. The flange is a part for connecting the shaft and the shaft or the pipeline and is used for connecting pipe ends; the flange connection is that two pipelines, pipe fittings or equipment are respectively fixed on a flange plate, a flange pad is added between the two flange plates and fastened together by bolts to complete the connection. The flange connection is an important connection mode for pipeline construction. The flange connection is convenient to use and can bear larger pressure.
However, the existing flange mainly has the following problems in the connection process; a, the connection strength between the flange and the pipeline is not enough, and the two pipelines which are usually hung and connected are easy to slide relatively under the action of gravity when the two pipelines are connected with the lower end of the pipeline through the flange, so that the two pipelines fall off to influence the connection between the pipelines; and b, the distance between the two pipeline interfaces is uncertain, and the interfaces of two pipelines with larger distance are difficult to be connected through the flange on the market, so that the applicability of the existing flange is low.
Therefore, the invention provides a portable adjustable metal flange.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that the portable adjustable metal flange comprises an upper clamping piece, a middle clamping piece and a lower clamping piece, wherein the upper end of the middle clamping piece is provided with the upper clamping piece in a clamping and fixing mode, the lower end of the middle clamping piece is provided with the lower clamping piece in a clamping and fixing mode, and the upper clamping piece and the lower clamping piece are of the same structure; wherein:
the middle clamping piece comprises an annular sleeve, a pressure regulating bolt, a clamping column, an arc-shaped clamping joint, a clamping spring, a sealing gasket, an auxiliary spring and a limiting arc ring; the upper end and the lower end of the annular sleeve are of symmetrical structures, and the inner ring at the upper end of the annular sleeve is of a concave structure; the groove wall at the upper end of the annular sleeve is uniformly provided with clamping holes; the middle part of the annular sleeve is uniformly provided with mounting holes around the circumferential direction of the annular sleeve, a clamping column is arranged inside the mounting holes in a sliding fit mode, the outer wall of the clamping column is sleeved with a clamping spring, the bottom end of the clamping column is provided with an arc-shaped clamping joint, the inner wall of the arc-shaped clamping joint is uniformly provided with clamping grooves, the outer wall of the top end of the clamping column is vertically and symmetrically provided with sealing gaskets in a sliding fit mode, and the sealing gaskets are connected with the clamping column through auxiliary springs; the pressure regulating bolt is installed on an outer wall installation hole of the annular sleeve in a threaded connection mode, and the inner wall of the middle part of the annular sleeve is uniformly provided with limiting arc rings around the circumferential direction of the inner wall; the limiting arc ring is promoted to be fixed with the interfaces of the two pipelines by rotating the pressure regulating bolt; in the process of fixing the two pipeline interfaces, in order to prevent the communicated pipelines from leaking, the sealing gasket can be abutted against the sealing gasket under the action of the auxiliary spring through the action of the sealing gasket to ensure the sealing property of the invention; further ensuring the air tightness between the invention and two connected pipelines.
The upper clamping piece comprises a primary fixing sleeve, a limiting unit, a fixing unit, a secondary fixing sleeve, a limiting column, a limiting spring, an adjusting rod, a fixed connection spring and a rubber clamping ring sleeve; the lower end of the first-stage fixing sleeve is uniformly provided with limiting units around the circumferential direction of the first-stage fixing sleeve, the upper end of the first-stage fixing sleeve is uniformly provided with fixing units around the circumferential direction of the first-stage fixing sleeve, the upper end of the first-stage fixing sleeve is provided with a second-stage fixing sleeve in a sliding fit mode, the section of the second-stage fixing sleeve is of a U-shaped structure, limiting columns are uniformly arranged inside the second-stage fixing sleeve, the outer walls of the lower ends of the limiting columns are sleeved with limiting springs, the lower end of the second-stage fixing sleeve is provided with adjusting rods around the circumferential direction of the second-stage fixing sleeve in a sliding fit mode, the adjusting rods are matched with the fixing units, the inner wall of the upper end of the second-stage fixing sleeve is provided with a rubber clamping ring sleeve in a sliding fit mode, and the rubber clamping ring sleeve is connected with the second-stage fixing sleeve through the uniformly arranged fixing springs; the upper clamping piece can slide relatively between the primary fixing sleeve and the secondary fixing sleeve, so that the practicability of the pipeline connecting device is improved, the connecting strength between the pipeline connecting device and two pipelines is further improved, and the stability of the pipeline connecting device is further ensured through the fixing unit.
The limiting unit comprises a limiting clamping bolt, a pull rope and a reset spring, the limiting clamping bolt is installed on the outer wall of the primary fixing sleeve in a sliding fit mode, one end of the limiting clamping bolt is connected with the pull rope, the other end of the pull rope is located outside the primary fixing sleeve, and the reset spring is located inside the primary fixing sleeve and is abutted against the limiting clamping bolt; fix the fixed cover of one-level and annular cover through spacing unit, when needs are untied fixed cover of one-level and annular cover, can break away from annular cover outer wall with spacing stuck bolt through the pulling stay cord, and then with the fixed cover of one-level and the separation of annular cover.
The fixing unit comprises a fixing clamp column, a pressure head, a supporting spring and a clamping head; the fixing clamp column is arranged on the primary fixing sleeve in a sliding fit mode, a pressure head is arranged at one end of the inner side of the fixing clamp column, a supporting spring is sleeved on the outer wall of one end of the outer side of the fixing clamp column, and a clamping head is arranged at one end of the outer side of the fixing clamp column; when the distance between two connected pipelines is larger, the primary fixing sleeve and the secondary fixing sleeve are pulled to make the primary fixing sleeve and the secondary fixing sleeve move relatively, so that the connection distance of the pipeline connector is prolonged, and when the secondary fixing sleeve is pulled, the outer wall of the inner part of the lower end of the secondary fixing sleeve is matched with the chuck, and the fixing clamp column is further extruded to make the pressure head and the outer wall of the connected pipeline abut against and fixed, so that the inner pipeline is prevented from falling off; the connection strength between the pipeline and the pipeline is ensured; the fixing unit has a simple structure, ensures the connection strength between the pipelines and the invention, and ensures that the two butted pipelines cannot relatively fall off in the using process of the invention.
Preferably; the limiting arc ring is made of rubber; the limiting arc ring made of rubber can keep the distance between the pipelines fixed at the two ends consistent on one hand, so that the pipelines at the two ends can be fixed on the pipe fixing device, and the limiting arc ring made of rubber can prevent the two ends of the pipelines from being damaged on the other hand; ensuring the integrity of the pipe ports.
Preferably; the section of the outer wall of the rubber clamping ring sleeve is provided with a conical chamfer; the tapered chamfer is arranged on the section of the outer wall of the rubber clamping ring sleeve, so that the rubber clamping ring sleeve is convenient to connect with an external pipeline, and the convenience of sleeving the pipeline in the rubber clamping ring sleeve is fully improved.
Preferably; the pressure head is of a hemispherical structure, and grooves are uniformly formed in the top end of the pressure head; set the top of pressure head to hemispherical structure and evenly set up the recess and improved the fixed strength between pressure head and the pipeline, ensure that the pipeline can not take place the relative slip and cause drop.
Advantageous effects
Firstly, the upper clamping piece arranged in the invention can slide relatively between the primary fixing sleeve and the secondary fixing sleeve, so that the practicability of the invention is improved, the connecting strength between the invention and two pipelines is further improved, the stability of the pipeline and the invention when being connected is further ensured through the fixing unit,
the fixing unit is simple in structure, ensures the connection strength between the pipelines and ensures that the two butted pipelines cannot relatively fall off in the using process;
the limiting arc ring made of rubber can keep the distance between the pipelines fixed at the two ends consistent on one hand, so that the pipelines at the two ends can be fixed on the limiting arc ring, and the limiting arc ring made of rubber can prevent the two ends of the pipelines from being damaged on the other hand; ensuring the integrity of the pipe ports.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view in elevation, in structural section, of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 in accordance with the present invention;
fig. 4 is a partial enlarged view of the invention at B in fig. 1.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 4, a portable adjustable metal flange comprises an upper clamping member 1, a middle clamping member 2 and a lower clamping member 3, wherein the upper end of the middle clamping member 2 is provided with the upper clamping member 1 in a clamping and fixing manner, the lower end of the middle clamping member 2 is provided with the lower clamping member 3 in a clamping and fixing manner, and the upper clamping member 1 and the lower clamping member 3 have the same structure; wherein:
the middle clamping piece 2 comprises an annular sleeve 21, a pressure regulating bolt 22, a clamping column 23, an arc-shaped clamping joint 24, a clamping spring 25, a sealing gasket 26, an auxiliary spring 27 and a limiting arc ring 28; the upper end and the lower end of the annular sleeve 21 are of symmetrical structures, and the inner ring at the upper end of the annular sleeve 21 is of a concave structure; the groove wall at the upper end of the annular sleeve 21 is uniformly provided with clamping holes; the middle part of the annular sleeve 21 is uniformly provided with mounting holes around the circumferential direction, the inside of the mounting holes is provided with a clamping column 23 in a sliding fit mode, the outer wall of the clamping column 23 is sleeved with a clamping spring 25, the bottom end of the clamping column 23 is provided with an arc-shaped clamping joint 24, the inner wall of the arc-shaped clamping joint 24 is uniformly provided with clamping grooves, the outer wall of the top end of the clamping column 23 is vertically and symmetrically provided with sealing gaskets 26 in a sliding fit mode, and the sealing gaskets 26 are connected with the clamping column 23 through auxiliary springs 27; the pressure regulating bolt 22 is installed on an outer wall installation hole of the annular sleeve 21 in a threaded connection mode, and a limiting arc ring 28 is uniformly arranged on the inner wall of the middle part of the annular sleeve 21 in the circumferential direction; the limiting arc ring 28 is made of rubber; the limiting arc rings 28 made of rubber can keep the distance between the fixed pipelines at the two ends consistent on one hand, so that the pipelines at the two ends can be fixed on the pipe fixing device, and the limiting arc rings made of rubber can prevent the two ends of the pipelines from being damaged on the other hand; ensuring the integrity of the pipe ports; the limiting arc ring 28 is promoted to be fixed with the interfaces of the two pipelines by rotating the pressure regulating bolt 22; in the process of fixing the two pipeline interfaces, in order to prevent the communicated pipelines from leaking, the sealing gasket 26 can be abutted against the sealing gasket 26 under the action of the auxiliary spring 27 through the action of the sealing gasket 26 to ensure the sealing property of the invention; further ensuring the air tightness between the invention and two connected pipelines.
The upper clamping piece 1 comprises a primary fixing sleeve 11, a limiting unit 12, a fixing unit 13, a secondary fixing sleeve 14, a limiting column 15, a limiting spring 16, an adjusting rod 17, a fixed connection spring 18 and a rubber clamping ring sleeve 19; the lower end of the first-stage fixing sleeve 11 is uniformly provided with limiting units 12 around the circumferential direction of the first-stage fixing sleeve, the upper end of the first-stage fixing sleeve 11 is uniformly provided with fixing units 13 around the circumferential direction of the first-stage fixing sleeve, the upper end of the first-stage fixing sleeve 11 is provided with a second-stage fixing sleeve 14 in a sliding fit mode, the section of the second-stage fixing sleeve 14 is of a U-shaped structure, limiting columns 15 are uniformly arranged inside the second-stage fixing sleeve 14, the outer wall of the lower end of each limiting column 15 is sleeved with a limiting spring 16, the lower end of the second-stage fixing sleeve 14 is provided with an adjusting rod 17 around the circumferential direction of the second-stage fixing sleeve in a sliding fit mode, the adjusting rod 17 is matched with the fixing units 13, the inner wall of the upper end of the second-stage fixing sleeve 14 is provided with a rubber clamping ring sleeve 19 in a sliding fit mode, and the rubber clamping ring sleeve 19 is connected with the second-stage fixing sleeve 14 through uniformly arranged fixing springs 18; the section of the outer wall of the rubber clamping ring sleeve 19 is provided with a conical chamfer; the tapered chamfer is arranged on the section of the outer wall of the rubber clamping ring sleeve 19, so that the rubber clamping ring sleeve is convenient to connect with an external pipeline, and the convenience of sleeving the pipeline in the rubber clamping ring sleeve is fully improved; the upper clamping piece 1 can slide relatively between the primary fixing sleeve 11 and the secondary fixing sleeve 14, so that the practicability of the invention is improved, the connection strength between two pipelines of the invention is further improved, and the stability of the pipelines in connection with the invention is further ensured through the fixing unit 13.
The limiting unit 12 comprises a limiting clamp bolt 121, a pull rope 122 and a return spring 123, the limiting clamp bolt 121 is installed on the outer wall of the primary fixing sleeve 11 in a sliding fit manner, one end of the limiting clamp bolt 121 is connected with the pull rope 122, the other end of the pull rope 122 is located outside the primary fixing sleeve 11, and the return spring 123 is located inside the primary fixing sleeve 11 and is abutted against the limiting clamp bolt 121; the primary fixing sleeve 11 and the annular sleeve 21 are fixed through the limiting unit 12, and when the primary fixing sleeve 11 and the annular sleeve 21 need to be detached, the limiting clamping bolt 121 can be separated from the outer wall of the annular sleeve 21 by pulling the pull rope 122, so that the primary fixing sleeve 11 is separated from the annular sleeve 21.
The fixing unit 13 comprises a fixing clamp column 131, a pressure head 132, a supporting spring 133 and a clamping head 134; the fixing clamp column 131 is arranged on the primary fixing sleeve 11 in a sliding fit mode, a pressure head 132 is arranged at one end of the inner side of the fixing clamp column 131, the pressure head 132 is of a hemispherical structure, grooves are uniformly formed in the top end of the pressure head 132, the top end of the pressure head 132 is of the hemispherical structure, the grooves are uniformly formed, the fixing strength between the pressure head and the pipeline is improved, and the pipeline is prevented from falling off due to relative sliding; the outer wall of one end of the fixed clamping column 131 is sleeved with a supporting spring 133, and one end of the outer side of the fixed clamping column 131 is provided with a clamping head 134; when the distance between two connected pipelines is large, the first-stage fixing sleeve 11 and the second-stage fixing sleeve 14 are pulled to make the first-stage fixing sleeve 11 and the second-stage fixing sleeve 14 move relatively to each other, so that the connection distance of the pipeline connecting device is prolonged, and when the second-stage fixing sleeve 14 is pulled, the outer wall inside the lower end of the second-stage fixing sleeve 14 is matched with the clamping head 134, and the clamping head 132 is further extruded and fixed to the outer wall of the connected pipeline in a butting mode through the fixing clamping column 131, so that the inner pipeline is prevented from falling off; the connection strength between the pipeline and the pipeline is ensured; the fixing unit 13 is simple in structure, ensures the connection strength between the pipelines and the invention, and ensures that the two butted pipelines cannot relatively fall off in the using process of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a metal flange with adjustable it is portable, includes joint spare (1), well joint spare (2) and lower joint spare (3), its characterized in that: the upper end of the middle clamping piece (2) is provided with an upper clamping piece (1) in a clamping and fixing mode, the lower end of the middle clamping piece (2) is provided with a lower clamping piece (3) in a clamping and fixing mode, and the upper clamping piece (1) and the lower clamping piece (3) are of the same structure; wherein:
the middle clamping piece (2) comprises an annular sleeve (21), a pressure regulating bolt (22), a clamping column (23), an arc-shaped clamping joint (24), a clamping spring (25), a sealing gasket (26), an auxiliary spring (27) and a limiting arc ring (28); the upper end and the lower end of the annular sleeve (21) are of symmetrical structures, and the inner ring at the upper end of the annular sleeve (21) is of a concave structure; the groove wall at the upper end of the annular sleeve (21) is uniformly provided with clamping holes; the middle part of the annular sleeve (21) is uniformly provided with mounting holes around the circumferential direction, a clamping column (23) is arranged in the mounting holes in a sliding fit mode, a clamping spring (25) is sleeved on the outer wall of the clamping column (23), an arc-shaped clamping joint (24) is arranged at the bottom end of the clamping column (23), clamping grooves are uniformly formed in the inner wall of the arc-shaped clamping joint (24), sealing gaskets (26) are symmetrically arranged on the outer wall of the top end of the clamping column (23) up and down in a sliding fit mode, and the sealing gaskets (26) are connected with the clamping column (23) through auxiliary springs (27); the pressure regulating bolt (22) is installed on an outer wall installation hole of the annular sleeve (21) in a threaded connection mode, and a limiting arc ring (28) is uniformly arranged on the inner wall of the middle part of the annular sleeve (21) in the circumferential direction of the annular sleeve;
the upper clamping piece (1) comprises a primary fixing sleeve (11), a limiting unit (12), a fixing unit (13), a secondary fixing sleeve (14), a limiting column (15), a limiting spring (16), an adjusting rod (17), a fixed connection spring (18) and a rubber clamping ring sleeve (19); the lower extreme of the fixed cover of one-level (11) evenly sets up spacing unit (12) around its circumferencial direction, and the upper end of the fixed cover of one-level (11) evenly is provided with fixed unit (13) around its circumferencial direction, the fixed cover of second grade (14) is installed through the sliding fit mode in the upper end of the fixed cover of one-level (11), the cross-section of the fixed cover of second grade (14) is U type structure, and the inside of the fixed cover of second grade (14) evenly is provided with spacing post (15), and the lower extreme outer wall cover of spacing post (15) is equipped with limiting spring (16), the lower extreme of the fixed cover of second grade (14) be provided with regulation pole (17) through the sliding fit mode around its circumferencial direction, regulation pole (17) cooperate with fixed unit (13), the upper end inner wall of the fixed cover of second grade (14) is provided with rubber joint ring cover (19) through the sliding fit mode, and rubber joint ring cover (19) and the fixed cover of second grade (14) between rigid coupling spring (18) through even setting mutually And (4) connecting.
2. A portable adjustable metal flange according to claim 1, characterized in that: spacing unit (12) include spacing stuck bolt (121), stay cord (122) and reset spring (123), spacing stuck bolt (121) install on the fixed cover of one-level (11) outer wall through the sliding fit mode, and the one end of spacing stuck bolt (121) is connected with stay cord (122), stay cord (122) other end be located the outside of the fixed cover of one-level (11), reset spring (123) be located the inside of the fixed cover of one-level (11) and inconsistent with spacing stuck bolt (121).
3. A portable adjustable metal flange according to claim 1, characterized in that: the fixing unit (13) comprises a fixing clamping column (131), a pressure head (132), a supporting spring (133) and a clamping head (134); fixing clip post (131) set up on fixed cover (11) of one-level through sliding fit, and fixing clip post's (131) inboard one end is installed pressure head (132), the outside one end outer wall cover that is located fixing clip post (131) is equipped with supporting spring (133), and fixing clip post's (131) outside one end is installed dop (134).
4. A portable adjustable metal flange according to claim 1, characterized in that: the limiting arc ring (28) is made of rubber.
5. A portable adjustable metal flange according to claim 1, characterized in that: the section of the outer wall of the rubber clamping ring sleeve (19) is provided with a conical chamfer.
6. A portable adjustable metal flange according to claim 3, characterized in that: the pressure head (132) is of a hemispherical structure, and grooves are uniformly formed in the top end of the pressure head (132).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010132080.1A CN111322474B (en) | 2020-02-29 | 2020-02-29 | Portable adjustable metal flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010132080.1A CN111322474B (en) | 2020-02-29 | 2020-02-29 | Portable adjustable metal flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111322474A CN111322474A (en) | 2020-06-23 |
| CN111322474B true CN111322474B (en) | 2021-10-01 |
Family
ID=71167300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010132080.1A Active CN111322474B (en) | 2020-02-29 | 2020-02-29 | Portable adjustable metal flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322474B (en) |
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| DE10314619A1 (en) * | 2003-04-01 | 2004-10-28 | Krauss-Maffei Kunststofftechnik Gmbh | Pipe connection for flow-wise connecting of two flow passages in fixed positioned elements has two telescopically movable sealed pipe elements, each with flange on end enabling fixing or bracing of pipe elements |
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| DE29705729U1 (en) * | 1997-04-01 | 1997-05-28 | Kuo, Hsien-Jen, Tainan | Length-adjustable pipeline |
| DE10314619A1 (en) * | 2003-04-01 | 2004-10-28 | Krauss-Maffei Kunststofftechnik Gmbh | Pipe connection for flow-wise connecting of two flow passages in fixed positioned elements has two telescopically movable sealed pipe elements, each with flange on end enabling fixing or bracing of pipe elements |
| CN101031750A (en) * | 2004-09-28 | 2007-09-05 | 沃茨海洋技术公司 | Connector |
| CN104110548A (en) * | 2013-04-16 | 2014-10-22 | 西班牙农业灌溉有限公司 | Pipe coupler |
| CN107461560A (en) * | 2017-09-26 | 2017-12-12 | 新兴铸管股份有限公司 | Self-anchoring joint |
| CN207500674U (en) * | 2017-10-12 | 2018-06-15 | 青岛欧勃亚农业科技有限公司 | A kind of agricultural production water pipe for irrigation exchanging structure |
| CN207599192U (en) * | 2017-10-24 | 2018-07-10 | 江苏飞达不锈钢有限公司 | A kind of steel flange for preventing rotation from coming off |
| CN208907514U (en) * | 2018-10-26 | 2019-05-28 | 陈亮 | A kind of petroleum pipeline attachment device |
| CN109253173A (en) * | 2018-11-21 | 2019-01-22 | 泰州华然不锈钢制品有限公司 | A kind of disassembly install convenient and firm flange |
| CN209309534U (en) * | 2018-12-21 | 2019-08-27 | 重庆消防安全技术研究服务有限责任公司 | A kind of used in fire-fighting fast inserted pipe joint |
| CN210088203U (en) * | 2019-06-14 | 2020-02-18 | 江苏赛尔超高压特种管业有限公司 | Steel wire mesh skeleton polyethylene pipe with quick connection structure |
| CN210890520U (en) * | 2019-09-11 | 2020-06-30 | 河海大学 | A pipeline for hydraulic engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111322474A (en) | 2020-06-23 |
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Effective date of registration: 20210907 Address after: 250206 No. 1, Dongzhao Village Industrial Park, Puji street, Zhangqiu District, Jinan City, Shandong Province Applicant after: Shandong Shengli Forging Co.,Ltd. Address before: 241000 Anhui Engineering University, Beijing Middle Road, Wuhu City, Anhui Province Applicant before: Nie Yan |
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