CN215639444U - Auxiliary measuring tool - Google Patents
Auxiliary measuring tool Download PDFInfo
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- CN215639444U CN215639444U CN202121863360.6U CN202121863360U CN215639444U CN 215639444 U CN215639444 U CN 215639444U CN 202121863360 U CN202121863360 U CN 202121863360U CN 215639444 U CN215639444 U CN 215639444U
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- 229910000831 Steel Inorganic materials 0.000 abstract description 65
- 239000010959 steel Substances 0.000 abstract description 65
- 238000009434 installation Methods 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an auxiliary measuring tool, which comprises a tool body; the tool body comprises a positioning plate, a first connecting plate and a second connecting plate; the positioning plate is of an arc-shaped structure, and the concave arc surface of the positioning plate forms a positioning surface; the first connecting plate and the second connecting plate are respectively arranged at two ends of the positioning plate along the circumferential direction of the positioning plate; the first connecting plate is provided with a first surface; the second connecting plate is provided with a second surface; the first surface and the second surface are arranged on the same side of the tool body; a first observation point is arranged on the first surface; a second observation point is arranged on the second surface; and the connecting line of the first observation point and the second observation point is intersected with the axis of the positioning surface, and the distances between the two observation points and the central line of the positioning surface are equal. When the positioning device is used, the positioning surface is only required to be attached to the outer surface of the measured steel pipe, then the coordinates of the two observation points are measured through the total station, then the space coordinates of the axis of the steel pipe at the measurement position can be obtained through simple calculation, and further the installation position of the steel pipe is positioned.
Description
Technical Field
The utility model relates to the technical field of steel structure installation, in particular to an auxiliary measuring tool.
Background
With the popularization of steel pipe truss structures, various large-span curve-shaped steel pipe truss structures are widely applied to venue construction, and the positioning and measurement of the three-dimensional space curve-shaped steel pipes are very difficult to achieve during installation.
This is because the dimensions of the center line of the steel pipe, not the coordinate dimensions of the points on the outer surface of the steel pipe, can be provided in the design, and since the spatial angle of the steel pipe is difficult to determine, it is difficult to calculate the coordinate dimensions of the points on the outer surface of the steel pipe from the dimensions of the center line of the steel pipe. Even if the coordinate size of the point on the outer surface of the steel pipe can be calculated according to the size of the central line of the steel pipe, the method for searching the relative reference point on the outer surface of the steel pipe is not only low in efficiency but also inconvenient to accurately position due to the fact that the spatial position of the steel pipe is continuously adjusted in the assembling process.
Chinese utility model patent CN212513031U discloses a steel construction location installation detection device, including light source emission body and the mark target calibrated scale body that mutually supports and use. The steel structure positioning, mounting and detecting device is used by matching the light source emitting body with the target dial plate body, and although the problem of positioning and mounting the structural column in the steel structure mounting process can be solved, the steel pipe in the steel pipe truss structure with the large-span curve shape cannot be positioned, so that the steel structure positioning, mounting and detecting device is not suitable for positioning and measuring the three-dimensional space of the steel pipe truss structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an auxiliary measuring tool for measuring the installation position of a three-dimensional space steel pipe.
The technical scheme adopted by the utility model for solving the technical problems is as follows: an auxiliary measuring tool comprising a tool body; the tool body comprises a positioning plate, a first connecting plate and a second connecting plate; the positioning plate is of an arc-shaped structure, and the concave arc surface of the positioning plate forms a positioning surface;
the first connecting plate and the second connecting plate are respectively arranged at two ends of the positioning plate along the circumferential direction of the positioning plate; the first connecting plate has a first surface; the second connecting plate has a second surface; the first surface and the second surface are arranged on the same side of the tool body;
a first observation point is arranged on the first surface; a second observation point is arranged on the second surface; and the connecting line of the first observation point and the second observation point is intersected with the central line of the positioning surface, and the distance from the first observation point to the central line of the positioning surface is equal to the distance from the second observation point to the central line of the positioning surface.
Furthermore, the first surface is a plane and is parallel to the central line of the positioning surface; the second surface is a plane and is parallel to the central line of the positioning surface.
Further, the first surface is coplanar with the second surface.
Further, the center line of the positioning surface, the first surface and the second surface are coplanar.
Further, the first surface is a plane and the second surface is a plane; the first surface and the second surface are coplanar, and the first surface is perpendicular to the central line of the positioning surface.
Further, the edge of the first surface has at least one vertex, one of the vertices of the first surface forming the first observation point; the edge of the second surface has at least one apex, one of the apices of the second surface forming the second observation point.
Further, the tool body is a rigid piece; the central angle of the positioning surface is less than or equal to 180 degrees.
Further, the tool body is an elastic piece.
Further, the central angle of the positioning surface is larger than 180 degrees.
Furthermore, a groove is arranged on the concave arc surface of the positioning plate; a magnet is fixed in the groove; the outer surface of the magnet and the concave arc surface of the positioning plate jointly form an arc-shaped positioning surface.
The utility model has the beneficial effects that: the auxiliary measuring tool provided by the embodiment of the utility model can be matched with a total station to measure the installation position of the three-dimensional space steel pipe. During measurement, the center line of the steel pipe can be ensured to coincide with the center line of the positioning surface only by tightly attaching the positioning surface on the tool body to the outer surface of the steel pipe, then the space coordinates of the first observation point and the second observation point are measured through the total station, the space coordinates of the intersection position of the center line of the steel pipe and the two observation points can be obtained through simple calculation, and the installation position of the steel pipe can be measured.
Drawings
FIG. 1 is a schematic diagram of the construction of an auxiliary measuring tool of the present invention;
FIG. 2 is a schematic view of the auxiliary measuring tool of the present invention for auxiliary measurement of the center line of a steel pipe;
FIG. 3 is a schematic structural view of another embodiment of an auxiliary measuring tool of the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of an auxiliary measuring tool of the present invention;
FIG. 5 is a schematic structural view of another embodiment of an auxiliary measuring tool of the present invention;
FIG. 6 is a front view of FIG. 5;
FIG. 7 is a schematic structural view of another embodiment of an auxiliary measuring tool of the present invention;
FIG. 8 is a front view of FIG. 7;
FIG. 9 is a schematic structural view of another embodiment of an auxiliary measuring tool of the present invention;
FIG. 10 is a cross-sectional view of FIG. 9;
reference numerals:
1-a tool body; 101-a positioning plate; 102-a first connection plate; 103-a second connecting plate; 2-positioning surface; 201-a first surface; 202-a second surface; 301-a first observation point; 302-a second observation point; 5-a groove; 6-a magnet; 7-a total station; 8-steel pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1, the auxiliary measuring tool of the present invention includes a tool body 1; the tool body 1 comprises a positioning plate 101, a first connecting plate 102 and a second connecting plate 103; the positioning plate 101 is of an arc-shaped structure, and the concave arc surface of the positioning plate 101 forms a positioning surface 2;
the first connecting plate 102 and the second connecting plate 103 are respectively arranged at two ends of the positioning plate 101 along the circumferential direction thereof; the first connecting plate 102 has a first surface 201; said second connection plate 103 has a second surface 202; the first surface 201 and the second surface 202 are arranged on the same side of the tool body 1;
a first observation point 301 is arranged on the first surface 201; a second observation point 302 is arranged on the second surface 202; the connecting line of the first observation point 301 and the second observation point 302 intersects with the center line of the positioning surface 2, and the distance from the first observation point 301 to the center line of the positioning surface 2 is equal to the distance from the second observation point 302 to the center line of the positioning surface 2.
The tool body 1 comprises a positioning plate 101, a first connecting plate 102 and a second connecting plate 103; the material of the tool body 1 includes but is not limited to plastic, wood or glass; preferably, the tool body 1 is made of steel, so that the strength is relatively high.
The positioning plate 101 is of an arc-shaped structure, and two surfaces of the positioning plate 101 are respectively an inner concave arc surface with a radius of R1 and an outer convex arc surface with a radius of R2, wherein R2 is R1+ T, and T is the thickness of the positioning plate 101. The concave arc surface of the positioning plate 101 forms a positioning surface 2, and the diameter of the positioning surface 2 is set according to the outer diameter of the steel pipe 8 and is matched with the outer diameter of the steel pipe 8. For example, when the diameter of the outer surface of the steel pipe 8 is a, the diameter of the positioning surface 2 is a. In the auxiliary measurement process, the positioning plate 101 needs to be positioned on the steel pipe 8, and after the positioning surface 2 of the positioning plate 101 is tightly attached to the outer surface of the steel pipe 8, the center line of the positioning surface 2 coincides with the center line of the measured steel pipe 8.
The first connecting plate 102 and the second connecting plate 103 are connected to two ends of the positioning plate 101 along the circumferential direction of the positioning plate, and the first connecting plate 102, the second connecting plate 103 and the positioning plate 101 can be connected in a welding manner, an adhesion manner and the like; preferably, welding is used, which can improve the overall strength of the tool body 1.
The first connecting plate 102 has a first surface 201; the first surface 201 may be a plane or a curved surface, and is not particularly limited herein. The second connecting plate 103 has a second surface 202, and the second surface 202 may be a plane or a curved surface, which is not limited herein. A first observation point 301 is arranged on the first surface 201; a second observation point 302 is disposed on the second surface 202. By arranging the first surface 201 and the second surface 202 on the same side of the tool body 1, when the position of the center line of the steel pipe is measured by matching the auxiliary measuring tool with the total station, the total station 7 is only required to be arranged on the front side of the first surface 201 on the tool body 1, and the spatial coordinates of the first observation point 301 and the second observation point 302 can be measured simultaneously.
The first observation point 301 may be a vertex on an edge of the first surface 201, where the vertex on the edge is an intersection of two edges of the first surface 201, and the intersection is marked with a mark pen for observation; the first observation point 301 may also be a mark point on the first surface 201, where the mark point is a dot drawn on the first surface 201 by a mark pen, and the diameter of the mark point is between 0.1 and 2 mm; the second observation point 302 may be a vertex of an edge of the second surface 202, where the vertex of the edge is an intersection of two edges of the second surface 202, and the intersection is marked with a mark pen for easy observation; the second observation point 302 can also be a mark point on the second surface 202, and the mark point is a dot drawn on the second surface 202 by a mark pen, and the diameter of the dot is between 0.1 and 2 mm; here, the mark points are enlarged in fig. 1, 3, 4, 5, 6, 7, 8, and 9.
A connecting line of the first observation point 301 and the second observation point 302 intersects with a center line of the positioning surface 2, and the center line of the positioning surface 2 is a line formed by the centers of arcs on the arc surface; the distance from the first observation point 301 to the center line of the positioning surface 2 is equal to the distance from the second observation point 302 to the center line of the positioning surface 2. With the structure, in the using process, after the coordinates of the first observation point 301 and the second observation point 302 are observed, the coordinate of the middle point of the connecting line of the two observation points is the coordinate of the central line of the positioning surface 2, and because the central line of the positioning surface 2 is superposed with the central line of the measured steel pipe 8, the coordinate of the middle point is the coordinate of the central line of the steel pipe 8.
The process of measuring the coordinates of the center line of the steel pipe 8 by using the auxiliary measuring tool provided by the above embodiment is as follows:
1. because the outer diameters of the steel pipes 8 used in the construction site are different, and different measuring tools with different sizes are required to be used for different steel pipes 8, an auxiliary measuring tool needs to be selected according to the size of the steel pipe 8 in the construction site, for example, when the outer diameter of the steel pipe 8 is phi 57mm, an auxiliary measuring tool with the diameter of the positioning surface 2 being phi 57mm needs to be selected;
2. specifically, measurement:
as shown in fig. 2, the total station 7 is erected, the operator selects an auxiliary measuring tool with a corresponding size, then the positioning surface 2 on the tool body 1 is tightly attached to the outer surface of the steel pipe 8, the tool body 1 is fixed by hand, after the fixation is completed, the observer observes the spatial coordinates of the first observation point 301 and the second observation point 302 by using the total station 7, and the observer firstly measures the coordinates (X) of the first observation point 301 by using the total station1、Y1、Z1) And then the coordinates (X) of second observation point 302 are measured2、Y2、Z3) Then, the coordinate of the intersection point of the connecting line of the first observation point 301 and the second observation point 302 and the central line of the positioning surface 2 is (X)1+X2)/2、(Y1+Y2)/2、(Z1+Z2) And/2, the intersection point coordinate is the coordinate of the intersection position of the central line of the steel pipe 8 and the connecting line of the two observation points. During observation of the total station 7, the tool body 1 cannot move, and if the tool body 1 moves due to improper operation of an operator, the observed data is invalid, and the tool body 1 needs to be positioned and installed again for observation.
The auxiliary measuring tool provided by the embodiment of the utility model can be matched with the total station 7 to measure the installation position of the three-dimensional space steel pipe 8. During measurement, the center line of the steel pipe 8 can be ensured to be coincident with the center line of the positioning surface 2 only by tightly attaching the positioning surface 2 on the tool body 1 to the outer surface of the steel pipe 8, then the space coordinates of the first observation point 301 and the second observation point 301 are measured through the total station 7, the space coordinates of the intersection position of the center line of the steel pipe 8 and the two observation points can be obtained through simple calculation, and the installation position of the steel pipe 8 can be measured.
Referring to fig. 1, as an embodiment, the first surface 201 is a plane, and the first surface 201 is parallel to a center line of the positioning surface 2; the second surface 202 is a plane, and the second surface 202 is parallel to the center line of the positioning surface 2.
The first surface 201 and the second surface 202 are both planar, which makes the machining process more convenient and does not require more processing on the first surface 201 and the second surface 202. The first surface 201 is parallel to the central line of the positioning surface 2, and the second surface 202 is parallel to the central line of the positioning surface 2; with this configuration, a first straight line can be determined on the first surface 201, the first straight line is parallel to the center line of the positioning surface 2, and a second straight line can be determined on the second surface 202, the second straight line is parallel to the center line of the positioning surface 2, the center line of the positioning surface 2 and the first straight line are on the same plane, and the distance from the first straight line to the center line of the positioning surface 2 is equal to the distance from the second straight line to the center line of the positioning surface 2, so that a point can be arbitrarily determined on the first straight line, a connecting line of the two points must pass through the center line of the positioning surface 2, and the distances from the two points to the center line of the positioning surface 2 are equal, so that more choices can be made when determining the observation point.
Referring to fig. 3, as an embodiment, the center line of the positioning surface 2, the second surface 202 and the first surface 201 are coplanar. The first observation point 301 and the second observation point 302 are points on the surfaces of the first surface 201 and the second surface 202; with this structure, since the first observation point 301 is disposed on the first surface 201 and the second observation point 302 is disposed on the second surface 202, if only one point is arbitrarily determined on the first surface 201 and the other point is arbitrarily determined on the second surface 202, the connecting line of the two points can pass through the center line of the positioning surface 2, and it is only necessary to satisfy that the two points are equidistant from the center line of the positioning surface 2, so that more choices can be made when determining the observation points.
Referring to fig. 4, as an embodiment, the first surface 201 is a plane, and the second surface 202 is a plane; the first surface 201 is coplanar with the second surface 202, and the first surface 201 is perpendicular to the center line of the positioning surface 2. Also, the first surface 201 and the second surface 202 are both flat, which makes the machining process more convenient and does not require more processing on the first surface 201 and the second surface 202; at this time, a first observation point 301 may be selected as a vertex on the boundary of the first surface 201, and a second observation point 302 may be selected as a vertex on the boundary of the second surface 202, so that the observation points are conveniently determined.
Referring to fig. 1, as an embodiment, an edge of the first surface 201 has at least one vertex, and one vertex of the first surface 201 forms the first observation point 301; the edge of the second surface 202 has at least one vertex, and one of the vertices of the second surface 202 forms the second observation point 302. For example, if the first surface 201 is a triangle, three corner points of the triangle are intersections of edges of the first surface 201, and the intersections of the edges are vertexes of the edges of the first surface 201.
The first connecting plate 102 and the second connecting plate 103 are rectangular plates, the first surface 201 and the second surface 202 are rectangular surfaces of the first connecting plate 102 and the second connecting plate 103 respectively, the first observation point 301 is a vertex on an edge of the first surface 201, the second observation point 302 is a vertex on an edge of the second surface 202, the first surface 201 is a rectangular surface, four corner points of the rectangular surface are vertexes of the edge of the first surface 201, the second surface 202 is a rectangular surface, four corner points of the rectangular surface are vertexes of the edge of the second surface 202, one vertex of the first surface 201 forms the first observation point 301, and one vertex of the second surface 202 forms the second observation point 302. The observation points marked by the marker pen on the first surface 201 and the second surface 202 are easy to wear in the using process, and after the structure is adopted, the position of the observation points can be determined after the tool body 1 is manufactured, and the problem of wear does not exist.
In one embodiment, the tool body 1 is a rigid member, and the central angle of the positioning surface 2 is less than or equal to 180 °.
When the tool body 1 is a rigid piece, the tool body 1 cannot elastically deform, and only when the central angle of the positioning surface 2 is smaller than or equal to 180 degrees, the positioning surface 2 can be attached to the steel pipe 8.
Referring to fig. 5 and 6, as an embodiment, the central angle of the positioning surface 2 is less than 180 °, and the contact surface between the positioning surface 2 and the steel pipe 8 is smaller when the central angle is too small, because the size of the contact surface determines the stability of the tool body 1 in the installation position, which results in the instability of the tool body 1. Preferably, the central angle α of the locating surface is between 120 ° and 180 °.
Referring to fig. 1, as an implementation, the concave surface of the arc plate 101 is the positioning surface 2, the central angle of the positioning surface 2 is equal to 180 °, so that in the installation process, the positioning surface 2 can be completely attached to the outer surface of the steel pipe 8, the larger the contact surface is, and the tool body is more stable in the installation position.
Referring to fig. 7 and 8, as an embodiment, the tool body 1 is an elastic member, and since the elastic member is elastically deformed, when the tool body 1 is deformed by an external force, the tool body can be restored to its original shape by removing the applied force. The central angle beta of the positioning surface can exceed 180 degrees; of course, the central angle β of the locating surface may also be less than or equal to 180 °.
When the central angle of the positioning surface 2 is larger than 180 degrees, the opening length of the positioning surface 2 is smaller than the diameter of the steel pipe 8, and the elasticity of the tool body 1 can be utilized to exert a force to expand the opening length of the positioning surface 2 to the diameter length of the steel pipe 8, so that the tool body 1 can be installed on the steel pipe 8; after installation, the applied force is released, which allows the tool body 1 to return to its original shape. At this moment, locating surface 2 hugs closely at the surface of steel pipe 8, and tool body 1 will block on steel pipe 8, because tool body 1 and the frictional force of steel pipe 8 have been greater than tool body 1's gravity, this makes tool body 1 can not remove, can not let the operator fix with the hand like this, and when the staff was not enough, a personnel can accomplish the installation and observe the task. Preferably, the central angle of the orientation 2 face is between 180 ° and 240 °.
In the above embodiment in which the central angle of the positioning surface 2 is less than or equal to 180 °, the tool body 1 is tightly attached to the surface of the steel pipe 8 during the measurement, and the operator fixes the tool body 1 at the measurement position by hand, which may cause the tool body 1 to move due to improper operation of the operator or fatigue of the operator. In order to reduce the operation difficulty of an operator and improve the measurement accuracy, as an embodiment, the tool body 1 may be fixed on the steel pipe 8 through a clamp, but the working place of the tool body 1 is a high-altitude truss, the clamp may be inconvenient to move when the operator carries the tool body again during operation, and the clamp is difficult to install and disassemble.
In order to solve the problem that the clamp is inconvenient to carry and difficult to mount and dismount in the embodiment. As shown in fig. 9, a concave groove 5 is formed on the concave arc surface of the positioning plate 101; a magnet 6 is fixed in the groove 5; the outer surface of the magnet 6 and the concave arc surface of the positioning plate 101 form an arc-shaped positioning surface 2 together.
The positioning face 2 can be provided with a groove 5, the groove 5 can be arranged at any position of the positioning face, preferably, the groove 5 is arranged at the center of the positioning face 2, a magnet 6 attached to the groove is placed in the groove 5 and fixed at the bottom of the groove 5 in a glue bonding mode, the thickness of the magnet 6 is not more than the depth of the groove 5, and preferably, the outer surface of the magnet 6 and the inner concave face of the arc-shaped plate 101 form the positioning face 2 together. Like this tool body 1 utilizes the suction of magnet and the laminating of 8 surfaces of surveyed steel pipes, and tool body 1 can not take place to slide in the use like this, has avoided the removal of tool body 1 because of the tired messenger of operating personnel.
Claims (9)
1. Supplementary measuring tool, its characterized in that: comprises a tool body (1); the tool body (1) comprises a positioning plate (101), a first connecting plate (102) and a second connecting plate (103); the positioning plate (101) is of an arc-shaped structure, and the concave arc surface of the positioning plate (101) forms a positioning surface (2);
the first connecting plate (102) and the second connecting plate (103) are respectively arranged at two ends of the positioning plate (101) along the circumferential direction of the positioning plate; the first connection plate (102) has a first surface (201); said second connection plate (103) having a second surface (202); the first surface (201) and the second surface (202) are arranged on the same side of the tool body (1);
a first observation point (301) is arranged on the first surface (201); a second observation point (302) is arranged on the second surface (202); the connecting line of the first observation point (301) and the second observation point (302) is intersected with the central line of the positioning surface (2), and the distance from the first observation point (301) to the central line of the positioning surface (2) is equal to the distance from the second observation point (302) to the central line of the positioning surface (2).
2. An auxiliary measuring tool as in claim 1, wherein: the first surface (201) is a plane, and the first surface (201) is parallel to the central line of the positioning surface (2); the second surface (202) is a plane, and the second surface (202) is parallel to the central line of the positioning surface (2).
3. An auxiliary measuring tool as claimed in claim 2, wherein: the center line of the positioning surface (2), the first surface (201) and the second surface (202) are coplanar.
4. An auxiliary measuring tool as in claim 1, wherein: the first surface (201) is a plane and the second surface (202) is a plane; the first surface (201) and the second surface (202) are coplanar, and the first surface (201) is perpendicular to the central line of the positioning surface (2).
5. Auxiliary measuring tool according to any of claims 1-4, characterized in that: the edge of the first surface (201) has at least one vertex, one of the vertices of the first surface (201) forming the first observation point (301); the edge of the second surface (202) has at least one apex, one of the apices of the second surface (202) forming the second observation point (302).
6. Auxiliary measuring tool according to any of claims 1-4, characterized in that: the tool body (1) is a rigid piece; the central angle of the positioning surface (2) is less than or equal to 180 degrees.
7. Auxiliary measuring tool according to any of claims 1-4, characterized in that: the tool body (1) is an elastic piece.
8. An auxiliary measuring tool as in claim 7, wherein: the central angle of the positioning surface (2) is larger than 180 degrees.
9. An auxiliary measuring tool as in claim 1, wherein: a groove (5) is formed in the concave arc surface of the positioning plate (101); a magnet (6) is fixed in the groove (5); the outer surface of the magnet (6) and the concave arc surface of the positioning plate (101) form an arc-shaped positioning surface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863360.6U CN215639444U (en) | 2021-08-10 | 2021-08-10 | Auxiliary measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121863360.6U CN215639444U (en) | 2021-08-10 | 2021-08-10 | Auxiliary measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215639444U true CN215639444U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121863360.6U Active CN215639444U (en) | 2021-08-10 | 2021-08-10 | Auxiliary measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215639444U (en) |
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2021
- 2021-08-10 CN CN202121863360.6U patent/CN215639444U/en active Active
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Address after: No. 350, Renmin Street, East District, Panzhihua City, Sichuan Province, 617099 Patentee after: CHINA 19TH METALLURGICAL GROUP Co.,Ltd. Address before: 617099 China 19th Metallurgical Group Co.,Ltd., Bingcaogang, East District, Panzhihua City, Sichuan Province Patentee before: CHINA 19TH METALLURGICAL GROUP Co.,Ltd. |