CN113043238A - Pipeline opening and scribing positioning device and scribing method - Google Patents
Pipeline opening and scribing positioning device and scribing method Download PDFInfo
- Publication number
- CN113043238A CN113043238A CN202110452692.3A CN202110452692A CN113043238A CN 113043238 A CN113043238 A CN 113043238A CN 202110452692 A CN202110452692 A CN 202110452692A CN 113043238 A CN113043238 A CN 113043238A
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- sliding rod
- pipe
- sliding
- mounting
- branch pipe
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a pipeline tapping and marking positioning device which can accurately position a tapping outline on an installed pipeline. Comprises a mounting frame component and a sliding rod; the mounting frame assembly comprises a mounting unit; a plurality of mounting units are connected to form an annular structure, and two adjacent mounting units are rotatably connected through a rotating shaft; the sliding rod penetrates through the through hole in the mounting unit and is in sliding fit with the mounting unit; the lengths of the sliding rods are equal; the axis of the rotating shaft is parallel to the length direction of the sliding rod. The installation frame component can be assembled according to the thickness of the branch pipe so as to be suitable for the branch pipes of various types, and the opening contour of various opening angles can be accurately positioned on the installed pipeline. And a scribing method is also provided, which not only can accurately obtain the opening contour on the installed pipeline, but also can quickly and accurately obtain the pipe end contour of the branch pipe matched with the opening contour.
Description
Technical Field
The invention belongs to the technical field of pipeline engineering construction, and particularly relates to a pipeline tapping and marking positioning device and a marking method.
Background
The pipeline opening marking and positioning method is that a special tool is used for positioning the connection position of a main pipe and a branch pipe, an opening outline is accurately marked on the main pipe, and then opening is carried out.
In the construction process of pipeline engineering, a large number of branch pipes are connected with a main pipe. If the hole is cut on the main pipe and then expanded by a gas cutting gun little by little according to a visual method, namely, through the visual observation of constructors, the outline of the hole is difficult to be found out accurately at one time. Before rolling the steel plate, a computer metal plate lofting method is adopted, and after the steel plate is cut into a required shape, the steel plate is rolled into a pipeline. This method is not suitable for locating a cut hole in an installed pipe.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pipeline opening scribing and positioning device which can accurately position an opening contour on an installed pipeline. The marking method can not only accurately position the opening contour on the installed pipeline, but also quickly and accurately obtain the end contour of the branch pipe matched with the opening contour.
The technical scheme adopted by the invention for solving the technical problems is as follows: the pipeline opening and scribing positioning device comprises an installation frame assembly and a sliding rod;
the mounting frame assembly comprises a mounting unit; a plurality of the mounting units are connected to form an annular structure, and two adjacent mounting units are rotatably connected through a rotating shaft;
the sliding rod penetrates through the through hole in the mounting unit and is in sliding fit with the mounting unit;
the lengths of the sliding rods are equal;
the axis of the rotating shaft is parallel to the length direction of the sliding rod.
Further, the installation frame subassembly is provided with a plurality ofly, and is a plurality of the installation frame subassembly is arranged along the length direction looks interval of slide bar.
Further, the sliding rod is a square rod.
Further, the installation frame assembly and the sliding rod are all aluminum alloy products.
Further, one end of the sliding rod is a tip.
Furthermore, the device also comprises an ear plate and a bolt;
the lug plates are arranged on the mounting unit, and the bolts penetrate through two adjacent lug plates and are fastened through nuts; the bolt serves as the rotating shaft.
The scribing method by using the pipeline opening scribing and positioning device comprises the following steps:
a, sleeving an installation frame assembly on a branch pipe to enable an installation unit to be attached to the outer wall of the branch pipe;
b, aligning one end of the branch pipe with the outer wall of the main pipe, and sliding the sliding rods towards the direction of the main pipe to enable one ends of the sliding rods to be in contact with the outer wall of the main pipe;
and C, connecting the contact point of each sliding rod and the outer wall of the main pipe into a space curve.
Step D, after the steps A and B, keeping the relative positions of the mounting frame assembly and the sliding rods unchanged, and moving the mounting frame assembly and the sliding rods integrally along the axial direction of the branch pipe in the direction away from the main pipe until the mounting frame assembly and the sliding rods reach a proper position; the end part of the sliding rod far away from the main pipe is provided with projections on the outer wall of the branch pipe, and the projections are connected into a space curve.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a pipeline tapping and scribing positioning device which can accurately position a tapping outline on an installed pipeline. The installation frame component can be assembled according to the thickness of the branch pipe so as to be suitable for the branch pipes of various types, and the opening contour of various opening angles can be accurately positioned on the installed pipeline. And a scribing method is also provided, which not only can accurately obtain the opening contour on the installed pipeline, but also can quickly and accurately obtain the pipe end contour of the branch pipe matched with the opening contour.
Drawings
FIG. 1 is a schematic view of the pipe tapping positioning device of the present invention, showing the structure of the main pipe and the branch pipe in cooperation with each other;
FIG. 2 is a schematic view of the mounting frame assembly of the present invention in cooperation with a slide bar;
FIG. 3 is a schematic view of the mounting structure of two adjacent mounting units of the present invention;
reference numerals: 1-main tube; 2-branch pipe; 3-installing a frame component; 301-a mounting unit; 4-a slide bar; 5-ear plate; 6-bolt.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in the attached drawings, the pipeline tapping and marking positioning device comprises a mounting frame assembly 3 and a sliding rod 4; the mounting frame assembly 3 includes a mounting unit 301; a plurality of the mounting units 301 are connected to form an annular structure, and two adjacent mounting units 301 are rotatably connected through a rotating shaft; the sliding rod 4 penetrates through a through hole in the mounting unit 301 and is in sliding fit with the mounting unit 301; the lengths of a plurality of the sliding rods 4 are equal; the axis of the rotating shaft is parallel to the length direction of the sliding rod 4.
The main pipe 1 is pre-installed, and normally, the diameter of the main pipe 1 is larger than that of the branch pipe 2. The mounting unit 301 is preferably a mounting block provided with a through hole adapted to the slide bar 4, through which the slide bar 4 is mounted and slides relative to the mounting unit 301. The sliding rods 4 are matched with the mounting frame assembly 3 to form a cylinder structure with openings at two ends. The mounting frame assembly 3 is sleeved outside the branch pipe 2, and the axis of the cylinder structure coincides with the axis of the branch pipe 2. Two adjacent mounting units 301 can rotate relatively through the rotating shaft, so that each mounting unit 301 is attached to the outer wall of the branch pipe 2. The length direction of the slide bar 4 is parallel to the length direction of the branch pipe 2. One end of the branch pipe 2 is aligned with the outer wall of the main pipe 1, and the sliding rod 4 slides towards the main pipe 1, so that one end of the sliding rod 4 is in contact with the outer wall of the main pipe 1. The contact point of each sliding rod 4 and the outer wall of the main pipe 1 is connected into a space curve, namely an open hole contour line on the main pipe 1 matched with the branch pipe 2.
The mounting frame assembly 3 may be provided with one sliding rod 4, which easily shifts the axial direction of the branch pipe 2 when sliding in the direction of the main pipe 1. Preferably, the mounting frame assembly 3 is provided in plurality, and the plurality of mounting frame assemblies 3 are arranged at intervals along the length direction of the sliding rod 4. The sliding rods 4 are limited by the installation frame assemblies 3, so that the sliding rods 4 are guaranteed to slide along the axial direction of the branch pipe 2 all the time in the process of sliding towards the main pipe 1, and the positioning accuracy is guaranteed. In the embodiment shown in fig. 1, two mounting frame assemblies 3 are provided at intervals.
The structure of the sliding rod 4 has various embodiments, for example, the sliding rod 4 may be a round rod. Preferably, the sliding rod 4 is a square rod. When the slide lever 4 is a square lever, the through hole on the mounting unit 301 is a rectangular hole.
The installation frame assembly 3 and the sliding rod 4 can be made of plastic products, and preferably, the installation frame assembly 3 and the sliding rod 4 are made of aluminum alloy products. Compared with plastic products, the aluminum alloy products have the advantages of light weight, high strength and the like.
In order to reduce the contact area between the end of the slide bar 4 and the main pipe 1, the scribing accuracy is improved. Preferably, one end of the sliding rod 4 is a tip. When the marking device is used, the tip end of the sliding rod 4 is in contact with the outer wall of the main pipe 1, and the marking precision is improved.
Two adjacent mounting units 301 may be rotatably connected by a hinge, the central axis of which serves as a rotation axis. In order to match branch pipes 2 with different thicknesses, the branch pipes preferably further comprise lug plates 5 and bolts 6; the ear plates 5 are arranged on the mounting unit 301, and the bolts 6 penetrate through two adjacent ear plates 5 and are fastened through nuts; the bolt 6 serves as the rotating shaft. By arranging the bolts 6 and the nuts, the adjacent two lug plates 5 rotate around the axis of the bolts 6. The bolt 6 and the nut are detachably connected, so that the mounting unit 301 can be increased or decreased according to the branch pipes 2 with different diameters, and the universality of the device is improved.
The invention also provides a scribing method using the pipeline opening scribing and positioning device, which comprises the following steps:
a, the mounting frame assembly 3 is sleeved on the branch pipe 2, so that the mounting unit 301 is attached to the outer wall of the branch pipe 2.
Each mounting unit 301 is in contact with the outer wall of the branch pipe 2, so that the axis of a cylindrical structure formed by the plurality of sliding rods 4 coincides with the axis of the branch pipe 2.
And B, aligning one end of the branch pipe 2 with the outer wall of the main pipe 1, and sliding the sliding rods 4 towards the main pipe 1 to ensure that one ends of the sliding rods 4 are all contacted with the outer wall of the main pipe 1.
The position where one end of the branch pipe 2 is aligned with the outer wall of the main pipe 1 is the position where the main pipe 1 needs to be perforated. The branch pipe 2 and the main pipe 1 can be clamped by the clamping seats so as to ensure that the relative positions of the branch pipe and the main pipe are not changed. Through the sliding fit of the mounting unit 301 and the sliding rods 4, one end of each of the sliding rods 4 is in contact with the outer wall of the main pipe 1. The cylinder structure enclosed by the sliding rods 4 can be regarded as the extension of the branch pipe 2 towards the main pipe 1. The distance from the end of each sliding rod 4 contacting the outer wall of the main pipe 1 to the mounting frame assembly 3 is different.
And C, connecting the contact point of each sliding rod 4 and the outer wall of the main pipe 1 into a space curve.
The contact points of the sliding rods 4 and the outer wall of the main pipe 1 are connected into a space curve by a marker pen, and the space curve is the outline of the opening on the main pipe 1 matched with the branch pipe 2.
The pipe end contour line for determining the adaptation of the branch pipe 2 to the bore contour line has various embodiments:
in the first embodiment, after a connection hole is cut in the main pipe 1 along the opening contour line, one end of the branch pipe 2 is inserted into the connection hole, and a space curve matched with the contour shape of the connection hole is drawn on the outer wall of the branch pipe 2, that is, the pipe end contour line of the branch pipe 2. The method comprises the following steps of firstly cutting the connecting hole on the main pipe 1, then obtaining the pipe end contour line of the branch pipe 2, and prolonging the construction period. The branch pipe 2 is inserted into the connecting hole, so that the accuracy of the pipe end contour line of the finally obtained branch pipe 2 is poor, and the deviation is easy to occur. There is also the disadvantage of being difficult to handle.
In order to quickly and accurately determine the pipe end contour line of the branch pipe 2 matched with the opening contour line on the main pipe 1, preferably, the method further comprises a step D, after the steps A and B, the relative positions of the installation frame assembly 3 and the plurality of sliding rods 4 are kept unchanged, and the installation frame assembly 3 and the plurality of sliding rods 4 are integrally moved in the direction away from the main pipe 1 along the axial direction of the branch pipe 2 until the proper position is reached; the end of the sliding rod 4 far away from the main pipe 1 has projections on the outer wall of the branch pipe 2, and the projections are connected into a space curve. The space curve is the pipe end contour line of the branch pipe 2. The suitable position is specifically that the constructor can make the position selection according to the length of the required branch pipe 2. By the above method, the pipe end contour of the branch pipe 2 can be obtained before the connecting hole is cut in the main pipe 1. Because the lengths of the sliding rods 4 are equal, after the steps A and B, the contour lines of the two ends of the cylinder structure enclosed by the sliding rods 4 are the same, so that the pipe end contour line of the branch pipe 2 is obtained with high precision, and the method is convenient and fast.
The above is a specific embodiment of the present invention, and it can be seen from the implementation process that the present invention provides a pipeline opening scribing and positioning device, which can accurately position an opening contour on an installed pipeline. The installation frame component can be assembled according to the thickness of the branch pipe so as to be suitable for the branch pipes of various types, and the opening contour of various opening angles can be accurately positioned on the installed pipeline. And a scribing method is also provided, which not only can accurately obtain the opening contour on the installed pipeline, but also can quickly and accurately obtain the pipe end contour of the branch pipe matched with the opening contour.
Claims (8)
1. Pipeline trompil marking off positioner, its characterized in that: comprises a mounting frame component (3) and a sliding rod (4);
the mounting frame assembly (3) comprises a mounting unit (301); a plurality of the mounting units (301) are connected to form an annular structure, and two adjacent mounting units (301) are rotatably connected through a rotating shaft;
the sliding rod (4) penetrates through a through hole in the mounting unit (301) and is in sliding fit with the mounting unit (301);
the lengths of the sliding rods (4) are equal;
the axial line of the rotating shaft is parallel to the length direction of the sliding rod (4).
2. The pipe opening scoring positioning device of claim 1, wherein: the installation frame assembly (3) is provided with a plurality of installation frame assemblies (3) which are arranged at intervals along the length direction of the sliding rod (4).
3. The pipe opening scoring positioning device of claim 1, wherein: the sliding rod (4) is a square rod.
4. The pipe opening scoring positioning device of claim 1, wherein: the mounting frame assembly (3) and the sliding rod (4) are all aluminum alloy products.
5. The pipe opening scoring positioning device of claim 1, wherein: one end of the sliding rod (4) is a pointed end.
6. The pipe opening scoring positioning device of claim 1, wherein: the device also comprises an ear plate (5) and a bolt (6);
the ear plates (5) are arranged on the mounting unit (301), and the bolts (6) penetrate through two adjacent ear plates (5) and are fastened through nuts; the bolt (6) serves as the rotating shaft.
7. The scribing method using the pipe opening scribing positioning device according to claim 1, wherein: the method comprises the following steps:
a, sleeving an installation frame assembly (3) on a branch pipe (2) to enable an installation unit (301) to be attached to the outer wall of the branch pipe (2);
b, aligning one end of the branch pipe (2) with the outer wall of the main pipe (1), and sliding the sliding rods (4) towards the main pipe (1) to enable one ends of the sliding rods (4) to be in contact with the outer wall of the main pipe (1);
and C, connecting the contact point of each sliding rod (4) and the outer wall of the main pipe (1) into a space curve.
8. The scribing method according to claim 7, wherein: d, after the steps A and B, keeping the relative positions of the installation frame assembly (3) and the sliding rods (4) unchanged, and moving the installation frame assembly (3) and the sliding rods (4) integrally in the direction away from the main pipe (1) along the axial direction of the branch pipe (2) until the proper positions are reached; the end part of the sliding rod (4) far away from the main pipe (1) is provided with projections on the outer wall of the branch pipe (2), and the projections are connected into a space curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110452692.3A CN113043238A (en) | 2021-04-26 | 2021-04-26 | Pipeline opening and scribing positioning device and scribing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110452692.3A CN113043238A (en) | 2021-04-26 | 2021-04-26 | Pipeline opening and scribing positioning device and scribing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113043238A true CN113043238A (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110452692.3A Pending CN113043238A (en) | 2021-04-26 | 2021-04-26 | Pipeline opening and scribing positioning device and scribing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN113043238A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2615255A (en) * | 1950-03-07 | 1952-10-28 | Robert C Rankin | Delineator for determining the length and end form of connecting pipes |
| US2671273A (en) * | 1950-12-09 | 1954-03-09 | Vernon L Barnes | Adjustable template |
| US2742706A (en) * | 1953-08-25 | 1956-04-24 | Jr Ray R Rushing | Pipe marker |
| US5383282A (en) * | 1990-11-28 | 1995-01-24 | Robert W. Field | Saddle-joint jig |
| US20140047725A1 (en) * | 2012-08-14 | 2014-02-20 | Daniel J. Taylor | Pipe Fitting Layout System |
| CN108274446A (en) * | 2018-03-26 | 2018-07-13 | 吕守平 | Pipe intersecting lines imitate type scriber |
| CN210060207U (en) * | 2019-04-30 | 2020-02-14 | 河南方圆工业炉设计制造有限公司 | Marking off auxiliary device of circular pipeline looks transversal |
| CN210233000U (en) * | 2019-06-28 | 2020-04-03 | 鲁西工业装备有限公司 | Intersecting line lofting tool |
| CN210551161U (en) * | 2019-08-09 | 2020-05-19 | 山西省工业设备安装集团有限公司 | Pipeline tee bend welded junction marking tool |
| CN112504059A (en) * | 2020-12-23 | 2021-03-16 | 中国石油天然气第六建设有限公司 | Surveying and mapping device for saddle opening of pipeline |
| CN112936212A (en) * | 2021-01-27 | 2021-06-11 | 天津市管道工程集团有限公司 | Three-way saddle opening blanking device and lofting method |
-
2021
- 2021-04-26 CN CN202110452692.3A patent/CN113043238A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2615255A (en) * | 1950-03-07 | 1952-10-28 | Robert C Rankin | Delineator for determining the length and end form of connecting pipes |
| US2671273A (en) * | 1950-12-09 | 1954-03-09 | Vernon L Barnes | Adjustable template |
| US2742706A (en) * | 1953-08-25 | 1956-04-24 | Jr Ray R Rushing | Pipe marker |
| US5383282A (en) * | 1990-11-28 | 1995-01-24 | Robert W. Field | Saddle-joint jig |
| US20140047725A1 (en) * | 2012-08-14 | 2014-02-20 | Daniel J. Taylor | Pipe Fitting Layout System |
| CN108274446A (en) * | 2018-03-26 | 2018-07-13 | 吕守平 | Pipe intersecting lines imitate type scriber |
| CN210060207U (en) * | 2019-04-30 | 2020-02-14 | 河南方圆工业炉设计制造有限公司 | Marking off auxiliary device of circular pipeline looks transversal |
| CN210233000U (en) * | 2019-06-28 | 2020-04-03 | 鲁西工业装备有限公司 | Intersecting line lofting tool |
| CN210551161U (en) * | 2019-08-09 | 2020-05-19 | 山西省工业设备安装集团有限公司 | Pipeline tee bend welded junction marking tool |
| CN112504059A (en) * | 2020-12-23 | 2021-03-16 | 中国石油天然气第六建设有限公司 | Surveying and mapping device for saddle opening of pipeline |
| CN112936212A (en) * | 2021-01-27 | 2021-06-11 | 天津市管道工程集团有限公司 | Three-way saddle opening blanking device and lofting method |
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| PB01 | Publication | ||
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Application publication date: 20210629 |