CN110695949B - Space circle scriber for pipeline scribing - Google Patents
Space circle scriber for pipeline scribing Download PDFInfo
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- CN110695949B CN110695949B CN201910914964.XA CN201910914964A CN110695949B CN 110695949 B CN110695949 B CN 110695949B CN 201910914964 A CN201910914964 A CN 201910914964A CN 110695949 B CN110695949 B CN 110695949B
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- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 14
- 239000003550 marker Substances 0.000 claims description 13
- 241000669003 Aspidiotus destructor Species 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a space circle scribing compass for scribing a pipeline, and belongs to the technical field of pipeline processing equipment. The marking device comprises a central shaft rod, a marking rod, a balancing rod, a positioning rod and a marking driving mechanism; the bottom of the central shaft lever is inserted in the center of a disc with a ring groove at the upper part in a penetrating way, the upper part is connected with the upper part of a positioning lever through a balancing lever, and the positioning lever is parallel to the central shaft lever; the marking pen is characterized in that the marking rod is h-shaped, the long rod is a circular sleeve with the bottom inserted into the circular groove of the disc, the upper part of the marking rod is rotatably sleeved outside the central shaft rod, and the bottom of the short rod is inserted with the marking pen; the marking driving mechanism comprises a rotating rod which is rotatably fixed and inserted in the positioning rod through a bearing, a rotating handle is arranged at the top of the rotating rod, and the marking driving mechanism also comprises a driving gear, a driven gear and a toothed chain for realizing transmission connection of the driving gear and the driven gear. The marking device is simple in structure, convenient to use, suitable for marking spatial circles of pipelines with various diameters, high in marking precision, easy to control the radius and the angle, capable of completing marking operation only by one person, free of extra power, flexible and convenient to operate, time-saving and labor-saving.
Description
Technical Field
The invention relates to the technical field of pipeline processing equipment, in particular to a scribing compass for a space circular scribing of an orthogonal intersecting line of a cylindrical pipeline.
Background
Cold section subassembly, the hot section subassembly of nuclear power main pipeline product all need be used for welding the takeover of various specifications on the straight tube trompil in the course of working, need mark out on the straight tube surface in order to confirm the processing position before the trompil, because this hole profile is the curved surface space circular line that is not on the coplanar, the operation of marking out space circular line process can't be accomplished fast on tubulose work piece surface to conventional marking tool. The existing marking gauge for pipeline intersecting lines, space circle marking and the like has the defects of complex structure and complex operation, especially can be completed only by manually driving the marking needle to rotate and move around the pipeline during marking, wastes time and labor during marking operation, and has low precision.
Disclosure of Invention
The invention aims to provide a space circle scribing compass for scribing a pipeline, which has the advantages of simpler structure, more convenient use and higher scribing accuracy through reasonable structural design.
The technical purpose of the invention is realized by the following technical scheme:
a space circle scribing compass for scribing a pipeline comprises a central shaft lever, a scribing rod, a balancing rod, a positioning rod and a scribing driving mechanism;
the bottom of the central shaft lever penetrates through and is inserted into the center of a disc, and the upper part of the disc is provided with a ring groove; the upper part of the central shaft lever is vertically and fixedly connected with one end of a balancing lever, the other end of the balancing lever is vertically and fixedly connected with the upper part of a positioning lever, and the positioning lever is parallel to the central shaft lever;
the marking-up bar is h-shaped and comprises a long bar, a short bar and a connecting cross bar for connecting the long bar and the short bar, wherein the long bar and the short bar are vertically arranged; the long rod is a circular sleeve, the bottom of the long rod is inserted into the annular groove at the upper part of the disc, and the upper part of the long rod is rotatably sleeved outside the central shaft rod; the bottom of the short rod is inserted with a marker;
the scribing driving mechanism comprises a rotating rod which is vertically inserted into the positioning rod; the top of the rotating rod is provided with a rotating handle, and the bottom of the rotating rod is connected with a bearing inner hole in an interference manner; the outer wall of the bearing is fixedly connected with the inner wall of the bottom of the positioning rod;
the scribing driving mechanism further comprises a driving gear arranged on the outer wall of the rotating rod, a driven gear arranged on the outer wall of the sleeve and a gear chain connecting the driving gear and the driven gear; the positioning rod is provided with an opening at a position corresponding to the driving gear on one side facing the sleeve, and the toothed chain is connected with the driving gear and the driven gear in a transmission mode through the opening.
Furthermore, a pen container for inserting a marker is arranged at the bottom of the short rod, and a spring is arranged at the top of the pen container. When the marking pen is used for marking, the marking pen can move up and down along with the curved surface of the pipeline through the elastic force of the spring, and the contact pressure between the marking pen and the surface of the pipeline is ensured, so that the marking is clear and accurate.
Furthermore, a plurality of groups of driven gears are arranged on the outer wall of the sleeve.
Furthermore, the middle part of the long rod, the middle part of the short rod, the middle part of the connecting cross rod and the bottom of the positioning rod of the marking rod are all provided with a telescopic mechanism.
Furthermore, the ring surface of the bottom of the sleeve, which is contacted with the ring groove, is provided with rotating beads.
Furthermore, an inner ring of the upper part of the sleeve, which is contacted with the central shaft rod, is provided with a rotating bead.
Furthermore, the inner ring of the upper part of the positioning rod, which is contacted with the rotating rod, is provided with a rotating bead.
Furthermore, an index plate is arranged at the position, between the balance rod and the sleeve, of the upper part of the central shaft rod; the middle part of the dividing plate is provided with a transparent scale ring, the bottom of the dividing plate is positioned at two ends of the transparent scale ring and is provided with an annular clamping groove, a vertically downward angle positioning ruler is clamped in the clamping groove, and the bottom of the angle positioning ruler exceeds or is flush with the bottom of the connecting cross rod of the dividing rod.
Furthermore, a cavity with an opening at the bottom is arranged at the bottom of the central shaft rod, a fixed needle is arranged in the cavity, the needle point of the fixed needle passes through the opening of the cavity to expose out of the bottom of the central shaft rod, and the needle head of the fixed needle is clamped in the cavity; the height of cavity is greater than the length of fixed needle, and is equipped with on the fixed needle syringe needle and changes the pearl to guarantee the smoothness nature that the fixed needle reciprocated.
Furthermore, the bottom of the disc is also provided with a sucker, and the center of the bottom of the sucker is provided with a needle fixing through hole.
As another scheme, the scribing driving mechanism comprises a spring piece arranged on the upper part of the sleeve, the spring piece surrounds the sleeve for at least one circle, one end of the spring piece is fixed on the wall of the sleeve, and the other end of the spring piece is connected with a pull rope; the cross rod is provided with a stay cord balance lifting hole, and the positioning rod is provided with a stay cord fixing buckle.
Through the arrangement, when the space circle of the orthogonal intersecting line is scribed on the cylindrical pipeline, the central shaft rod is firstly aligned and arranged at the circle center through the fixed needle, then the height and the width of the scribing rod are adjusted to meet the requirement of the size of the space circle, and for the semicircular scribing with the angle requirement, the angle positioning can be realized by adjusting the angle positioning ruler on the index plate; and finally, operating the scribing driving mechanism, rotating the rotating handle to drive the scribing rod to rotationally scribe through the toothed chain, or pulling the pull rope to drive the scribing rod to rotationally scribe through the spring piece, so that the circular scribing of the pipeline space is realized.
Therefore, the beneficial effects of the invention are as follows: this pipeline is rule and is drawn with space circle scriber simple structure, convenient to use, the pipeline space circle of adaptable various diameter parameters is drawn a line, and it is high to draw a line the precision, and radius and angle control very easily realize, and just the operation of drawing a line only need alone can accomplish, need not extra power, and the flexible operation is convenient, labour saving and time saving.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partial perspective view of the overall structure of the present invention.
Fig. 3 is a schematic plan view of the bottom disk of the central shaft of the present invention.
FIG. 4 is a schematic plan view of the arrangement of the rotating balls on the upper inner ring of the sleeve and the upper inner ring of the positioning rod according to the present invention.
Fig. 5 is a schematic structural view of an index plate in the present invention.
Fig. 6 is a bottom view of the indexing plate structure of the present invention.
Fig. 7 is an enlarged schematic view of a portion a of fig. 6.
Fig. 8 is a schematic view of the position structure among the central shaft, the needle, the disc and the suction cup in the present invention.
FIG. 9 is a schematic view of the structure of FIG. 8 with the locking pin pressed into the cavity.
Fig. 10 is a schematic structural view of the scribing line driving mechanism described in the second embodiment.
In the figure:
1-central shaft rod, 11-disc, 12-ring groove, 13-cavity, 14-fixed needle;
2-marker, 21-sleeve, 22-short rod, 23-connecting cross rod, 24-spring, 25-marker;
3-balance bar, 31-balance hanging hole;
4-positioning rod, 41-hole, 42-stay cord fixing buckle;
51-rotating rod, 52-rotating handle, 53-bearing and 54-toothed chain; 55-spring piece, 56-pull rope;
6-rotating the beads;
7-an index plate, 71-a transparent scale ring, 72-an annular clamping groove and 73-an angle positioning ruler;
8-sucker.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the above description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like are used in the orientations and positional relationships indicated in the drawings, or the orientations and positional relationships conventionally used in the products of the present invention, or the orientations and positional relationships conventionally understood by those skilled in the art, are used for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Example one
As shown in fig. 1-9, a space circle scribing compass for scribing a pipeline comprises a central shaft rod 1, a scribing rod 2, a balancing rod 3, a positioning rod 4 and a scribing driving mechanism.
The bottom of the central shaft lever 1 penetrates through and is inserted into the center of a disc 11, the bottom of the central shaft lever 1 and the bottom of the disc 11 are positioned on the same horizontal plane, and the upper part of the disc 11 is provided with a ring groove 12; the upper part of the central shaft lever 1 is vertically and fixedly connected with one end of the balance lever 3, the other end of the balance lever 3 is vertically and fixedly connected with the upper part of the positioning lever 4, the positioning lever 4 is parallel to the central shaft lever 1, and the bottom of the positioning lever 4 is provided with a telescopic mechanism, so that the height of the positioning lever 4 can be adjusted and fixed up and down.
The utility model is characterized in that the marker 2 is h-shaped and comprises a long rod, a short rod 22 and a connecting cross rod 23 for connecting the long rod and the short rod 22 which are vertically arranged, the long rod, the short rod 22 and the connecting cross rod 23 of the marker 2 are all provided with a telescopic mechanism, wherein the telescopic mechanisms on the long rod and the short rod 22 are used for adjusting the height of the marker 2 so as to adapt to the surface curvature of pipelines with different diameters, and the telescopic mechanisms on the connecting cross rod 23 are used for adjusting the width of the marker 2 so as to meet the radius requirement of the marked circle; the long rod is a circular sleeve 21, the bottom of the long rod is inserted into the annular groove 12 at the upper part of the disc 11, the upper part of the long rod is rotatably sleeved outside the central shaft rod 1, and the annular surface of the bottom of the sleeve 21, which is contacted with the annular groove 12, and the inner ring of the upper part of the sleeve 21, which is contacted with the central shaft rod 1, are provided with rotating beads 6 so as to ensure the smoothness of the marking rod 2 when rotating around the central shaft rod 1; the bottom of the short rod 22 is provided with a pen container for inserting a marker 25, the top of the pen container is provided with a spring 24, the marker 25 is inserted in the pen container, and the marker 25 can move up and down along with the curved surface of the pipeline and ensure the contact pressure with the surface of the pipeline through the elasticity of the spring 24 in the marking process, so that the marking is clear.
The scribing driving mechanism comprises a rotating rod 51 which is vertically inserted into the positioning rod 4, the top end of the rotating rod penetrates out of the positioning rod 4, and a rotating bead 6 is arranged on an inner ring, which is arranged at the upper part of the positioning rod 4 and is in contact with the rotating rod 51; the top of the rotating rod 51 is provided with a rotating handle 52, and the bottom of the rotating rod is connected with an inner hole of a bearing 53 in an interference manner; the outer wall of the bearing 53 is fixedly connected with the inner wall of the bottom of the positioning rod 4; the scribing driving mechanism further comprises a driving gear arranged on the outer wall of the rotating rod 51, a driven gear arranged on the outer wall of the sleeve 21 and a gear chain 54 connecting the driving gear and the driven gear; the positioning rod 4 is provided with an opening 41 at a position corresponding to the driving gear on one side facing the sleeve 21, and the toothed chain 54 realizes transmission connection between the driving gear and the driven gear through the opening 41. Through the structure, the rotating handle 52 is rotated to enable the rotating rod 51 to rotate, and in the rotating process of the rotating rod 51, the rotating beads 6 of the inner ring at the upper part of the positioning rod 4 and the bearing 53 at the lower end of the rotating rod 51 enable the rotating rod 51 to rotate very smoothly and labor-saving; when the rotating rod 51 rotates, the gear chain 54 drives the sleeve 21 of the marking rod 2 to rotate through the driving gear and the driven gear, so that the rotary marking of the marking rod 2 is realized.
An index plate 7 is further fixedly arranged at a position, between the balance rod 3 and the sleeve 21, of the upper portion of the central shaft rod 1, as shown in fig. 5-7, a transparent scale ring (not shown in the scale mark figure) 71 is arranged in the middle of the index plate 7, annular clamping grooves 72 are formed in the bottom of the index plate 7, which is located at two ends of the transparent scale ring 71, a vertically downward angle positioning ruler 73 is clamped in the annular clamping grooves 72, and the bottom of the angle positioning ruler 73 is beyond or flush with the bottom of the connecting cross rod 23 of the index plate. When the arc line with the angle requirement needs to be scribed, the angle positioning ruler 73 can be moved to a proper angle position, and the scribing rod 2 stops when touching the angle positioning ruler 73 in a rotating manner, so that the scribing of the arc line with the angle requirement is completed.
As shown in fig. 8-9, a cavity 13 with an opening at the bottom is formed at the bottom of the central shaft rod 1, a fixed needle 14 is arranged in the cavity 13, the needle point of the fixed needle 14 passes through the opening of the cavity 13 to be exposed out of the bottom of the central shaft rod 1, and the needle head of the fixed needle 14 is clamped in the cavity 13; the height of the cavity 13 is greater than the length of the fixed needle 14, and a rotating bead is arranged on the needle head of the fixed needle 14 to ensure the smoothness of the up-and-down movement of the fixed needle 14. The bottom of the disc 11 is also provided with a sucker 8, and the center of the bottom of the sucker 8 is provided with a needle fixing through hole. During the use, the fixed needle 14 passes cavity 13 opening and fixed needle through-hole under the dead weight effect and exposes outside sucking disc 8, and the needle point aims the centre of a circle and realizes accurate location, then pushes down disc 11, forces sucking disc 8 to push down and adsorbs on the pipeline surface, makes the central axis pole 1 can be more stable stand on the pipeline surface, and at the in-process that pushes down, fixed needle 14 atress upwards moves back in cavity 13, can not cause the interference to sucking disc 8's adsorption.
Example two
As shown in fig. 10, the second embodiment provides another solution for the scribing line driving mechanism:
the scribing driving mechanism comprises a spring piece 55 arranged on the upper part of the sleeve 21, in the embodiment, the spring piece 55 is a high-elastic return spring piece; the spring plate 55 surrounds the sleeve 21 at least once, and preferably the spring plate surrounds the sleeve twice in the embodiment; one end of the spring piece 55 is fixed on the sleeve wall, and the other end is connected with a pull rope 56; the balance rod 3 is provided with a pull rope balance lifting hole 31, the height of the balance lifting hole 31 and the position of the spring piece 55 are on the same horizontal line, and the pull rope 56 penetrates through the balance lifting hole 31, so that the stress directions of the spring piece 55 can be ensured to be consistent when the pull rope 56 is pulled, and the rotating stability of the sleeve 21 is ensured; the positioning rod 4 is provided with a pull rope fixing buckle 42, and when the position of the pull rope 56 needs to be fixed, the pull rope 56 can be sleeved on the pull rope fixing buckle 42. Through this structure setting, the pulling stay cord can make the spring leaf pull out, because spring leaf one end is fixed in on the cover barrel wall, consequently the pull-out of spring leaf can drive the sleeve and rotate to realize the rotatory marking off of marking staff.
It should be noted that, in the present invention, the rotating beads on the inner ring of the upper portion of the sleeve are in contact connection with the central shaft rod, the rotating beads on the inner ring of the upper portion of the positioning rod are in contact connection with the rotating rod, the rotating beads on the needle head of the fixed needle are in contact connection with the inner wall of the cavity, the size, number and distribution mode of the rotating beads are subject to the achievement of the desired technical effect, and the present invention is not particularly limited; the specific structure of the long rod, the short rod, the connecting cross rod and the telescopic mechanism on the bottom of the positioning rod can be a conventional telescopic structure so as to realize adjustable and fixable telescopic functions, and the invention is not particularly limited; the material, shape and size of the sucker are such that the sucker can absorb the surface of the pipeline, and the invention is not particularly limited.
The technical solutions of the present invention, which are not specifically limited, are all technical solutions that can achieve corresponding effects by a conventional method for those skilled in the art, and are well known to those skilled in the art.
The foregoing is directed to only certain exemplary embodiments of this invention and, accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive. It should also be noted that those skilled in the art can make various improvements and additions without departing from the principle of the present invention, and these improvements and additions should also be considered as the protection scope of the present invention.
Claims (10)
1. A space circular scribing compass for scribing a pipeline is characterized by comprising a central shaft rod, a scribing rod, a balancing rod, a positioning rod and a scribing driving mechanism, wherein the bottom of the central shaft rod penetrates through and is inserted in the center of a disc, and the upper part of the disc is provided with a ring groove; the upper part of the central shaft lever is vertically and fixedly connected with one end of a balancing lever, the other end of the balancing lever is vertically and fixedly connected with the upper part of a positioning lever, and the positioning lever is parallel to the central shaft lever;
the marking-up bar is h-shaped and comprises a long bar, a short bar and a connecting cross bar for connecting the long bar and the short bar, wherein the long bar and the short bar are vertically arranged; the long rod is a circular sleeve, the bottom of the long rod is inserted into the annular groove at the upper part of the disc, and the upper part of the long rod is rotatably sleeved outside the central shaft rod; the bottom of the short rod is inserted with a marker;
the scribing driving mechanism comprises a rotating rod which is vertically inserted into the positioning rod; the top of the rotating rod is provided with a rotating handle, and the bottom of the rotating rod is connected with a bearing inner hole in an interference manner; the outer wall of the bearing is fixedly connected with the inner wall of the bottom of the positioning rod;
the scribing driving mechanism further comprises a driving gear arranged on the outer wall of the rotating rod, a driven gear arranged on the outer wall of the sleeve and a gear chain connecting the driving gear and the driven gear; the positioning rod is provided with an opening at a position corresponding to the driving gear on one side facing the sleeve, and the toothed chain is connected with the driving gear and the driven gear in a transmission mode through the opening.
2. The marking gauge according to claim 1, wherein the bottom of the short bar is provided with a pen container for inserting the marking pen, and the top of the pen container is provided with a spring.
3. The scribing compass according to claim 1, wherein the middle part of the long rod, the middle part of the short rod, the middle part of the connecting cross rod and the bottom of the positioning rod are provided with telescopic mechanisms.
4. A compass according to claim 1, wherein the sleeve is provided with a roller ball on a bottom annulus.
5. A compass according to claim 1, wherein the sleeve is provided with a roller ball on an upper inner ring.
6. The scribing compass of claim 1, wherein the upper inner ring of the positioning rod is provided with a rotating bead.
7. A compass according to any one of claims 1 to 6, wherein an indexing plate is provided on the upper portion of the central shaft between the balance bar and the sleeve; the middle part of the dividing plate is provided with a transparent scale ring, the bottom of the dividing plate is positioned at two ends of the transparent scale ring and is provided with an annular clamping groove, a vertically downward angle positioning ruler is clamped in the clamping groove, and the bottom of the angle positioning ruler exceeds or is flush with the bottom of the connecting cross rod of the dividing rod.
8. The marking gauge of claim 7, wherein the bottom of the central shaft has a cavity with an opening at the bottom, a fixed needle is arranged in the cavity, the needle tip of the fixed needle passes through the opening of the cavity to expose the bottom of the central shaft, and the needle head of the fixed needle is clamped in the cavity; the height of the cavity is larger than the length of the fixed needle, and the fixed needle head is provided with a rotating bead.
9. The scribing compass according to claim 8, wherein the bottom of the disc is further provided with a suction cup, and the bottom center of the suction cup is provided with a fixing pin through hole.
10. A space circular scribing compass for scribing a pipeline is characterized by comprising a central shaft rod, a scribing rod, a balancing rod, a positioning rod and a scribing driving mechanism, wherein the bottom of the central shaft rod penetrates through and is inserted in the center of a disc, and the upper part of the disc is provided with a ring groove; the upper part of the central shaft lever is vertically and fixedly connected with one end of a balancing lever, the other end of the balancing lever is vertically and fixedly connected with the upper part of a positioning lever, and the positioning lever is parallel to the central shaft lever;
the marking-up bar is h-shaped and comprises a long bar, a short bar and a connecting cross bar for connecting the long bar and the short bar, wherein the long bar and the short bar are vertically arranged; the long rod is a circular sleeve, the bottom of the long rod is inserted into the annular groove at the upper part of the disc, and the upper part of the long rod is rotatably sleeved outside the central shaft rod; the bottom of the short rod is inserted with a marker;
the scribing driving mechanism comprises a spring piece arranged on the upper part of the sleeve, the spring piece surrounds the sleeve for at least one circle, one end of the spring piece is fixed on the wall of the sleeve, and the other end of the spring piece is connected with a pull rope; the connecting cross rod is provided with a stay cord balance lifting hole, and the positioning rod is provided with a stay cord fixing buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914964.XA CN110695949B (en) | 2019-09-26 | 2019-09-26 | Space circle scriber for pipeline scribing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914964.XA CN110695949B (en) | 2019-09-26 | 2019-09-26 | Space circle scriber for pipeline scribing |
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| Publication Number | Publication Date |
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| CN110695949A CN110695949A (en) | 2020-01-17 |
| CN110695949B true CN110695949B (en) | 2020-12-08 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393693Y (en) * | 1999-09-09 | 2000-08-30 | 黄永励 | Scriber for crossed pipe opening |
| CN201940998U (en) * | 2010-12-29 | 2011-08-24 | 张龙舟 | Scriber for pipeline assembly |
| US9333642B2 (en) * | 2013-10-07 | 2016-05-10 | Brooks COURTNEY | Cabinet jig device with adjustable fasteners and related methods |
| CN204172021U (en) * | 2014-10-31 | 2015-02-25 | 河北钢铁股份有限公司承德分公司 | A kind of pipe communicated wire volume rendering rule |
| WO2017019592A1 (en) * | 2015-07-30 | 2017-02-02 | Sikorsky Aircraft Corporation | Locating positions on components |
| JP2017217750A (en) * | 2016-06-02 | 2017-12-14 | 勝 岡田 | General purpose tool for dividing workpiece at optional angle around one point as reference |
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