CN214747697U - Marking off positioner - Google Patents
Marking off positioner Download PDFInfo
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- CN214747697U CN214747697U CN202022977194.4U CN202022977194U CN214747697U CN 214747697 U CN214747697 U CN 214747697U CN 202022977194 U CN202022977194 U CN 202022977194U CN 214747697 U CN214747697 U CN 214747697U
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Abstract
The utility model discloses a marking off positioner, marking off positioner includes: support piece, centre of a circle location structure and gyration marking off structure. The circle center positioning structure comprises at least three radius positioning pieces, one end of each radius positioning piece is rotatably arranged on the support piece, and the other end of each radius positioning piece is abutted to the inner circle of the surface to be scribed; the rotary scribing structure comprises a rotary distance measuring rod and a scribing mechanism, the rotary distance measuring rod is rotatably installed on the supporting piece, the scribing mechanism is installed on the rotary distance measuring rod in a sliding mode to adjust the distance between the supporting piece and the scribing mechanism, the scribing mechanism is provided with a scribing piece, and the scribing piece is in butt-sliding contact with the surface to be scribed so as to form a scribing mark on the surface to be scribed. The problem of influence on subsequent partition plate assembly welding and manufacturing completion inspection is avoided, and the manufacturing quality of the partition plate is improved and guaranteed.
Description
Technical Field
The utility model relates to a technical irregularity marking off measurement field, concretely relates to marking off positioner.
Background
The throat width dimension of the steam passage needs to be checked in the assembling and welding process and the manufacturing and finishing process of the steam turbine partition plate. The existing special tool for measuring the throat width is usually adopted, the throat width is the minimum width between two guide blades, and the throat width is clamped into a groove body formed between two adjacent guide blades through a wedge block, so that the actual distance length of the throat width is obtained through the mark length on the wedge block.
However, in the measurement structure with the above structure, since the groove structure formed between two adjacent guide blades is formed by two irregular planes, the wedge-shaped block is easy to abut against corresponding positions of different guide blades in the process of being clamped in, so that the actual throat width cannot be obtained, the subsequent welding and the manufacturing completion inspection of the partition board are affected, and the manufacturing quality of the partition board cannot be ensured.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that in the measurement structure among the prior art, because the groove structure that forms between two adjacent guide blades comprises two anomalous planes, cause to go into the butt easily to appear at the card at the wedge and on the guide blade of difference corresponds the position, and then can't obtain actual throat width at the card, and weld and make the completion inspection and cause the influence to follow-up baffle dress, can't guarantee the problem of the manufacturing quality of baffle.
Therefore, the utility model provides a marking off positioner, include:
a support member;
the circle center positioning structure comprises at least three radius positioning pieces, one end of each radius positioning piece is rotatably arranged on the support piece, and the other end of each radius positioning piece is abutted against the inner circle of the surface to be scribed;
the rotary scribing structure comprises a rotary distance measuring rod and a scribing mechanism, wherein the rotary distance measuring rod is rotatably installed on the supporting piece, the scribing mechanism is slidably installed on the rotary distance measuring rod to adjust the distance between the supporting piece and the scribing mechanism, the scribing mechanism is provided with a scribing piece, and the scribing piece is abutted against and slides to form a scribing mark on the surface to be scribed.
Optionally, in the scribing positioning device, the scribing mechanism includes a sliding part, the sliding part is connected to the scribing part, the sliding part has a sliding hole, and the rotary distance measuring rod is installed in the sliding hole.
Optionally, in the scribing positioning device, the scribing mechanism further includes a first telescopic adjusting component disposed between the sliding member and the scribing member, and configured to adjust a distance between the scribing member and the sliding member, the first telescopic adjusting component includes a first telescopic member and a second telescopic member that are connected in a relatively sliding manner, the first telescopic member is connected to the scribing member, the second telescopic member is connected to the sliding member, the first telescopic member is disposed in a sliding manner relative to the second telescopic member, and the scribing mark is formed on the cambered surfaces of the scribing member and the guide vane.
Optionally, in the scribing positioning device, the rotary scribing structure further includes a first locking member, the first locking member is installed in a first locking hole on the sliding member, one end of the first locking member, which is close to the rotary distance measuring rod, abuts against the rotary distance measuring rod, and the locking member is used for locking a position of the sliding member on the rotary distance measuring rod.
Optionally, in the scribing and positioning device, the rotary scribing structure further includes a first rotary member, the first rotary member is fixedly connected to the rotary distance measuring rod, the first rotary member has a first rotary hole, and the support member is mounted in the first rotary hole.
The rotary scribing structure further comprises a second locking piece, the second locking piece is installed in the second locking hole of the first rotary piece, one end, close to the supporting piece, of the second locking piece abuts against the supporting piece, and the second locking piece is used for locking the position of the first rotary piece on the supporting piece.
Optionally, in the scribing positioning device, the circle center positioning structure further includes a second rotating member, the second rotating member is fixedly connected to one end of the radius positioning member, the second rotating member has a second rotating hole, and the supporting member is mounted in the second rotating hole;
the rotary scribing structure further comprises a third locking piece, the third locking piece is installed in a third locking hole of the second rotary piece, one end, close to the supporting piece, of the third locking piece abuts against the supporting piece, and the third locking piece is used for locking the position of the second rotary piece on the supporting piece.
Optionally, in the scribing positioning device, the circle center positioning structure further includes a second telescopic adjusting assembly arranged between the second rotary member and the radius positioning member, so as to adjust the distance between the radius positioning member and the supporting member, the second telescopic adjusting assembly includes a third telescopic member and a fourth telescopic member which are connected in a sliding manner, the third telescopic member is connected with the radius positioning member, the fourth telescopic member is connected with the second rotary member, and the third telescopic member is arranged in a sliding manner relative to the fourth telescopic member.
Optionally, in the scribing and positioning device, the rotary distance measuring rod and all the radius positioning pieces are provided with scale marks.
A scribing method for throat width detection comprises the following steps:
fixing the length of all radius positioning pieces;
determining a support position;
determining the position of the marking mechanism on the rotary distance measuring rod;
the rotary distance measuring rod is driven to rotate, and the scribing piece forms a scribing mark on the surface to be scribed.
Optionally, the scribing method for throat width detection adopts the scribing positioning device.
The technical scheme provided by the utility model, following advantage has:
1. the utility model provides a marking off positioner, include: support piece, centre of a circle location structure and gyration marking off structure. The circle center positioning structure comprises at least three radius positioning pieces, one end of each radius positioning piece is rotatably arranged on the support piece, and the other end of each radius positioning piece is abutted to the inner circle of the surface to be scribed; the rotary scribing structure comprises a rotary distance measuring rod and a scribing mechanism, the rotary distance measuring rod is rotatably installed on the supporting piece, the scribing mechanism is installed on the rotary distance measuring rod in a sliding mode to adjust the distance between the supporting piece and the scribing mechanism, the scribing mechanism is provided with a scribing piece, and the scribing piece is in butt-sliding contact with the surface to be scribed so as to form a scribing mark on the surface to be scribed.
The marking and positioning device with the structure comprises a circular positioning structure, wherein the length of a radius positioning piece is adjusted, the position of the support piece is fixed, the support piece is located in the circle center position of the positioning, the marking track of the marking mechanism is located in the same circle center and on the circle face with the same radius through the driving of a rotary distance measuring rod, a marking mark is formed on the marking surface through the marking piece, the marking before the throat width face detection is completed, the subsequent wedge block is used for structure clamping, the position clamped by the wedge piece is located in the same circle face, the wedge face butt of the wedge block is ensured to be in the corresponding positions of two guide blades, the actual throat width detection is realized, the problem that the influence is caused by the subsequent partition plate welding and manufacturing completion inspection is avoided, and the manufacturing quality of the partition plate is improved and ensured.
2. The utility model provides a marking off positioner through the setting of slider, realizes that marking off mechanism is along rotating measuring stick reliability when sliding.
3. The utility model provides a marking off positioner, marking off mechanism is still including setting up the slider with first flexible adjusting part between the marking off spare, be used for adjusting the marking off spare with distance between the slider, first flexible adjusting part includes relative sliding connection's first extensible member and second extensible member, first extensible member with the marking off spare is connected, the second extensible member with the sliding connection, the relative second extensible member of first extensible member slides and sets up, form in the cambered surface of marking off spare and guide vane the marking off sign.
According to the marking and positioning device with the structure, the surface of the guide vane is a curved surface, and the first telescopic adjusting assembly is arranged to ensure that the marking piece is positioned on the surface to be marked, namely the marking stability of the surface of the guide vane, and the marking mark is positioned on the same cylindrical surface.
4. The utility model provides a marking off positioner, gyration marking off structure still includes first locking piece, first locking piece is installed in the first locking hole on the slider, just first locking piece is close to the one end butt that rotates the range finding pole is in rotate on the range finding pole, the locking piece is used for the locking the slider is in rotate the position on the range finding pole.
The marking-off positioning device with the structure has the advantages that the first locking piece is locked in the first locking hole, the certainty of the movement radius of the marking-off mechanism is guaranteed, and the marking-off mark is further guaranteed to be positioned on the same cylindrical surface, so that the problem of influence on subsequent partition plate assembly welding and manufacturing completion inspection is avoided, and the manufacturing quality of the partition plate is improved and guaranteed.
5. The utility model provides a marking off positioner, gyration marking off structure still includes first gyration spare, first gyration spare with rotate range finding pole fixed connection, first gyration spare has first gyration hole, support piece installs in the first gyration hole; the rotary scribing structure further comprises a second locking piece, the second locking piece is installed in the second locking hole of the first rotary piece, one end, close to the supporting piece, of the second locking piece abuts against the supporting piece, and the second locking piece is used for locking the position of the first rotary piece on the supporting piece. According to the scribing positioning device with the structure, the second locking piece is arranged to ensure that the position of the rotary distance measuring rod in height can be determined by screwing the second locking piece after the height position of the first rotary piece on the supporting rod is adjusted and determined.
6. The utility model provides a marking off positioner, centre of a circle location structure is still including setting up the second rotating member with the flexible adjusting part of second between the radius setting element, be used for adjusting radius setting element with distance between the support piece, the flexible adjusting part of second includes relative sliding connection's third extensible member and fourth extensible member, the third extensible member with the radius setting element is connected, the fourth extensible member with the second rotating member is connected, the relative fourth extensible member of third extensible member slides and sets up. The marking positioning device with the structure and the second telescopic adjusting assembly further realize the adaptability of marking in the surface circle to be marked with different radiuses.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a scribing positioning device provided in an embodiment of the present invention in cooperation with a partition plate;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of a scribing positioning device provided in an embodiment of the present invention;
fig. 4 is an exploded view of a scribe line positioning device provided in an embodiment of the present invention;
fig. 5 is a schematic view of a scribing positioning device provided in an embodiment of the present invention during scribing;
FIG. 6 is an enlarged schematic view of FIG. 5;
FIG. 7 is a schematic view of the structure of FIG. 6 from another perspective;
description of reference numerals:
1-a support;
2-circle center positioning structure; 21-radius locators; 22-a second rotating member; 23-a second telescoping adjustment assembly; 231-a third telescoping member; 232-a fourth telescoping member;
3-a rotary scribing structure; 31-rotating the distance measuring rod; 32-a scribing mechanism; 321-a scribe; 322-a slide; 323-a first telescoping adjustment assembly; 3231-a first telescoping piece; 3232-a second telescoping piece; 33-a first swivel;
41-inner ring of partition board; 411-inner circle; 42-diaphragm outer ring; 43-guide vanes;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a scribing line positioning device, as shown in fig. 1 to 7, including: support piece 1, centre of a circle location structure 2 and gyration marking off structure 3. The circle center positioning structure 2 is mounted on the support member 1 and is used for positioning the circle center of the inner circle 411 of the surface to be scribed, the rotary scribing mechanism 32 is mounted on the support member 1, and scribing marks are formed on the surface to be scribed on the circular surface with the same radius size.
Specifically, as shown in fig. 1 and fig. 2, the diaphragm in the present embodiment includes a diaphragm inner ring 41 and a diaphragm outer ring 42, wherein the surface to be scribed in the present embodiment is a structure of a plurality of guide vanes 43, the diaphragm inner ring 41 is a circular hollow structure, an inner circle 411 of the diaphragm inner ring 41 is a cylindrical structure, and a central axis of the inner circle 411 and an array center of all the guide vanes 43 coincide with each other.
As shown in fig. 3 and 4, the rotary scribing structure 3 includes a first rotary member 33, a rotary distance measuring bar 31, and a scribing mechanism 32. Wherein, the first rotating member 33 is fixedly connected with the rotating distance measuring rod 31, so that the rotating distance measuring rod 31 is rotatably mounted on the supporting member 1 through the first rotating member 33; the scribing mechanism 32 is slidably mounted on the rotary distance measuring rod 31, so that the distance between the scribing mechanism and the support 1 can be adjusted.
As shown in fig. 3, 4, and 6, the scribing mechanism 32 includes: a slide member 322, a scribe member 321, and a first telescoping adjustment assembly 323. Wherein the sliding member 322 is connected to the scribing member 321, the sliding member 322 has a sliding hole, and the rotary distance measuring bar 31 is installed in the sliding hole. A first telescopic adjusting assembly 323 is arranged between the sliding piece 322 and the scribing piece 321, and the first telescopic adjusting assembly 323 is used for adjusting the distance between the scribing piece 321 and the sliding piece 322; the scribing member 321 slides in abutment with the surface to be scribed to form a scribing mark on the surface to be scribed. Specifically, the first swivel member 33 has a first swivel hole in which the support 1 is mounted.
As shown in fig. 3 and 4, the first telescopic adjustment assembly 323 includes a first telescopic member 3231 and a second telescopic member 3232 which are slidably connected with each other, the first telescopic member 3231 is connected with the scribe member 321, the second telescopic member 3232 is connected with the sliding member 322, the first telescopic member 3231 is slidably disposed with respect to the second telescopic member 3232, and the scribe mark is formed on the curved surface of the scribe member 321 and the guide vane 43.
The rotary scribing structure 3 provided by the present embodiment further includes a second locking member (not shown in the drawings), the second locking member is installed in a second locking hole of the first rotary member 33, and one end of the second locking member close to the support member 1 abuts on the support member 1, and the second locking member is used for locking the position of the first rotary member 33 on the support member 1. The second locking means, which may be in particular threaded fasteners, such as screws or studs or the like, is arranged so as to swivel the height position of the line marking structure 3 on the support 1. For example, when the height position of the first rotating member 33 is adjusted and determined at the supporting bar, the position of the distance measuring bar 31 in the height position can be determined by turning the second locking member.
As shown in fig. 3 and 4, in the present embodiment, the circle center positioning structure 2 includes: three radius positioning members 21, a second swivel member 22, a third locking member, and a second telescoping adjustment assembly 23. One end of the radius positioning piece 21 is rotatably arranged on the support piece 1, and the other end of the radius positioning piece 21 is abutted to the inner circle 411 of the surface to be scribed; the second rotating member 22 is fixedly connected with one end of the radius positioning member 21, the second rotating member 22 is provided with a second rotating hole, and the supporting member 1 is installed in the second rotating hole; the third locking piece is installed in a third locking hole of the second rotating piece 22, one end of the third locking piece close to the support piece 1 is abutted to the support piece 1, the third locking piece is used for locking the position of the second rotating piece 22 on the support piece 1, and the second telescopic adjusting assembly 23 is used for adjusting the distance between the radius positioning piece 21 and the support piece 1. For example, in the present embodiment, all the radius positioning members 21 are provided with scale marks. The length of all the radius positioning pieces 21 is fixed, and the positioning accuracy of the circle is further improved.
As shown in fig. 3 and 4, the second telescopic adjusting assembly 23 includes a third telescopic member 231 and a fourth telescopic member 232 that are connected in a relatively sliding manner, the third telescopic member 231 is connected to the radius positioning member 21, the fourth telescopic member 232 is connected to the second rotating member 22, and the third telescopic member 231 is arranged in a relatively sliding manner with respect to the fourth telescopic member 232.
Of course, in other alternative embodiments, the number of the radius positioning members 21 may be four, five, six or even more, as long as the circle center of the inner circle 411 is determined and positioned.
The lineation positioning device provided by the embodiment is characterized in that the length of the radius positioning piece 21 is adjusted through a circular positioning structure, so that the position of the support piece 1 is fixed, the support piece 1 is ensured to be positioned in the circle center position of the positioning, the lineation track of the lineation mechanism 32 is ensured to be positioned in the same circle center and on the circular surface with the same radius through the driving of the rotating distance measuring rod 31, finally, a lineation mark is formed on the lineation surface through the lineation piece 321, lineation before the throat width surface detection is completed, the subsequent positions clamped by the wedge pieces are positioned in the same circle when the structure is clamped through the wedge pieces, the wedge pieces are ensured to abut against the corresponding positions of the two guide blades 43, the actual throat width detection is realized, the problem that the subsequent partition plate is subjected to assembly welding and manufacturing completion inspection to cause influence is avoided, and the manufacturing quality of the partition plate is improved and ensured.
Example 2
The embodiment provides a scribing method for throat width detection, which comprises the following steps:
s1: the length of all the radius positioning pieces 21 is fixed;
the third telescopic member 231 and the fourth telescopic member 232 are adjusted, so that the extending distance of the radius positioning member 21 relative to the second rotating member 22 is determined, and the extending distance lengths of the three radius positioning members 21 are ensured to be equal, specifically, the extending lengths of the three radius positioning members 21 are ensured to be equal by the equal length scales on all the radius positioning members 21;
s2: determining the position of the support 1:
the support member 1 is positioned at the center of the three radius positioning members 21, so that the bottom placement position of the support member 1 is determined, and the axial direction of the support member 1 is ensured to be vertical to the ground due to the large base area of the support member 1.
S3: determining the position of the scribing mechanism 32 on the rotating distance measuring bar 31;
the height determination of the first swivel member 33 is achieved by adjusting the height of the first swivel member 33 on the support 1 and by locking the second locking member; thereafter, the sliding member 322 is slid in the length direction of the rotary ranging rod 31, and the determination of the radius of rotation is achieved by locking the first locking member.
S4: the rotary distance measuring rod 31 is driven to rotate, and the scribing piece 321 forms a scribing mark on the surface to be scribed.
As shown in fig. 5, 6 and 7, the rotary distance measuring rod 31 is driven to rotate, and the scribing member 321 is ensured to be always abutted against the surface to be scribed. For example, when the position of the guide vane 43 is far from the distance of the rotating distance measuring rod 31, the first telescopic member 3231 and the second telescopic member 3232 are separated from each other, so as to ensure that the scribing member 321 can be abutted against the surface to be scribed; when the position of the guide vane 43 is closer to the distance of the rotating distance measuring rod 31, the first telescopic member 3231 and the second telescopic member 3232 are close to each other, so as to ensure that the scribing member 321 can be abutted against the surface to be scribed. At this point, the step of marking the guide vane 43 by scribing is completed.
Example 3
This example provides a scribing method for throat width detection, using the scribing positioning device of example 1. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A scribe line positioning device comprising:
a support (1);
the circle center positioning structure (2) comprises at least three radius positioning pieces (21), one end of each radius positioning piece (21) is rotatably arranged on the support piece (1), and the other end of each radius positioning piece (21) is abutted to an inner circle (411) of a surface to be scribed;
gyration structure of drawing a line (3), including rotating range finding pole (31) and marking off mechanism (32), rotate range finding pole (31) and rotationally install on support piece (1), marking off mechanism (32) slidable install rotate on range finding pole (31), in order to adjust marking off mechanism (32) is relative distance between support piece (1), marking off mechanism (32) have line piece (321), line piece (321) with wait to draw the face butt and slide in order to wait to draw the face formation marking off sign.
2. The scribe line positioning device according to claim 1,
the scribing mechanism (32) comprises a sliding piece (322), the sliding piece (322) is connected with the scribing piece (321), the sliding piece (322) is provided with a sliding hole, and the rotary distance measuring rod (31) is installed in the sliding hole.
3. The scribe line positioning device according to claim 2,
the scribing mechanism (32) further comprises a first telescopic adjusting component (323) arranged between the sliding piece (322) and the scribing piece (321) and used for adjusting the distance between the scribing piece (321) and the sliding piece (322), the first telescopic adjusting component (323) comprises a first telescopic piece (3231) and a second telescopic piece (3232) which are in relative sliding connection, the first telescopic piece (3231) is connected with the scribing piece (321), the second telescopic piece (3232) is connected with the sliding piece (322), the first telescopic piece (3231) is in sliding connection with the second telescopic piece (3232), and the scribing mark is formed on the cambered surface of the scribing piece (321) and the guide vane (43).
4. The scribe line positioning device according to claim 2 or 3,
gyration marking off structure (3) still include first locking piece, first locking piece is installed in first locking hole on slider (322), just first locking piece is close to rotate range finding pole (31) one end butt is in rotate range finding pole (31) on, the locking piece is used for locking slider (322) are in rotate the position on the range finding pole (31).
5. The line striping positioning device of any one of claims 1-3 wherein the rotary striping structure (3) further comprises a first rotary member (33), the first rotary member (33) being fixedly connected to the rotary rangefinder lever (31), the first rotary member (33) having a first rotary bore in which the support member (1) is mounted;
the rotary scribing structure (3) further comprises a second locking piece, wherein the second locking piece is installed in a second locking hole of the first rotary piece (33), one end, close to the support piece (1), of the second locking piece abuts against the support piece (1), and the second locking piece is used for locking the position of the first rotary piece (33) on the support piece (1).
6. The scribing positioning device according to any one of claims 1 to 3, wherein the circle center positioning structure (2) further comprises a second rotating member (22), the second rotating member (22) is fixedly connected with one end of the radius positioning member (21), the second rotating member (22) is provided with a second rotating hole, and the supporting member (1) is installed in the second rotating hole;
the rotary scribing structure (3) further comprises a third locking piece, wherein the third locking piece is installed in a third locking hole of the second rotary piece (22), one end, close to the support piece (1), of the third locking piece abuts against the support piece (1), and the third locking piece is used for locking the position of the second rotary piece (22) on the support piece (1).
7. The scribe line positioning device according to claim 6,
centre of a circle location structure (2) still including set up second rotating member (22) with flexible adjusting part (23) of second between radius setting element (21) for adjust radius setting element (21) with distance between support piece (1), flexible adjusting part (23) of second includes relative sliding connection's third extensible member (231) and fourth extensible member (232), third extensible member (231) with radius setting element (21) are connected, fourth extensible member (232) with second rotating member (22) are connected, third extensible member (231) fourth extensible member (232) slide setting relatively.
8. The line marking and positioning device according to any one of claims 1 to 3, wherein scale marks are provided on the rotary distance measuring rod (31) and all the radius positioning members (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977194.4U CN214747697U (en) | 2020-12-07 | 2020-12-07 | Marking off positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022977194.4U CN214747697U (en) | 2020-12-07 | 2020-12-07 | Marking off positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214747697U true CN214747697U (en) | 2021-11-16 |
Family
ID=78631773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022977194.4U Active CN214747697U (en) | 2020-12-07 | 2020-12-07 | Marking off positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214747697U (en) |
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2020
- 2020-12-07 CN CN202022977194.4U patent/CN214747697U/en active Active
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