CN203240210U - Connecting assembly of surveying and drawing centering rod - Google Patents
Connecting assembly of surveying and drawing centering rod Download PDFInfo
- Publication number
- CN203240210U CN203240210U CN 201320281834 CN201320281834U CN203240210U CN 203240210 U CN203240210 U CN 203240210U CN 201320281834 CN201320281834 CN 201320281834 CN 201320281834 U CN201320281834 U CN 201320281834U CN 203240210 U CN203240210 U CN 203240210U
- Authority
- CN
- China
- Prior art keywords
- centering rod
- prism
- fixedly connected
- connector
- connection part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a connecting assembly of a surveying and drawing centering rod. The connecting assembly comprises a target board, a prism assembly, a prism bracket, the centering rod and a supporting frame. The prism assembly is fixedly connected with the target board through a rotary shaft, the prism bracket is rotatably connected with the rotary shaft, the prism bracket is fixedly connected with the centering rod through a connecting assembly body, and the connecting assembly body comprises a cylindrical connector and a connecting base. One end of the connector is provided with a connecting end A with outer threads, a circular truncated cone positioning boss is arranged between the connecting end A and the connector, one end of the connecting base is of a hollow annular shape, the size of the inner diameter of one end of the connecting base is matched with the size of the outer diameter of the connector, and the opposite end of the connecting end A is provided with a connecting end B. The connecting assembly effectively solves the problems that the connecting portion of a traditional centering rod is made of aluminum alloy materials, the side edge of the centering rod is locked through a screw rod, a seam between the connector and the connecting base is prone to being enlarged, and accordingly centering precision of the centering rod is reduced.
Description
Technical field
The utility model relates to the mapping equipment technical field, is specifically related to a kind of mapping centering rod connection part.
Background technique
The mapping centering rod is as indispensable aligning equipment in the mapping, widely purposes is arranged in mapping, at present, the connecting head that the prism group of existing centering rod and the joint of centering rod adopt aluminum alloy to make usually, on the connecting head circumferential surface locating slot is set, the mode of then locking by the tightening nut on the connecting base, because the prism group need to often be changed direction, locking nut needs often dismounting, again because connecting head is that aluminium material is made, thereby cause connecting head, slit between the connecting base is more and more, and the accuracy of alignment of centering rod in the mapping process also can be greatly affected.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of mapping centering rod connection part, the joint that the utility model efficiently solves traditional centering rod adopts aluminum alloy material to make, side adopts screw rod locking, repeatedly after the dismounting, easily cause the slit between connecting head and the connecting base to become large, thereby reduce the accuracy of alignment of centering rod.
The utility model is achieved through the following technical solutions:
A kind of mapping centering rod connection part, comprise board (1), prism assemblies (2), prism carriage (4), centering rod (6) and supporting frame (7), prism assemblies (2) is fixedly connected with board (1) by rotating shaft (3), prism carriage (4) is rotationally connected with rotating shaft (3), prism carriage (4) is fixedly connected with centering rod (6) by connection part (5), it is characterized in that: described connection part (5) comprises cylindric connecting head (51), connecting base (52), connecting head (51) one ends are provided with externally threaded connecting end A(512), connecting end A(512) and be provided with round table-like positioning boss (511) between the connecting head (51), connecting base (52) one ends are the hollow circular ring shape, its internal diameter size and connecting head (51) outside dimension is complementary, and the opposite end is provided with connecting end B(521).
The further Technological improvement plan of the utility model is:
Described connecting head (51), positioning boss (511), connecting end A(512) make by copper product.
The utility model further Technological improvement plan is:
Described connecting end A(512) be fixedly connected with connecting end B(521 with prism carriage (4) screw thread) be fixedly connected with centering rod (6) screw thread.
The utility model compared with prior art, has obvious advantage, the utility model adds positioning boss on original connection part connecting head basis, positioning boss is covered on the connecting base, and cooperating between connecting head and the connecting base is tight, and positioning boss can increase cooperation precision, and connecting head is made by copper product simultaneously, hardness improves, and can significantly improve the accuracy of alignment of centering rod in mapping centering process.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connecting component structure schematic diagram.
Embodiment
Such as Fig. 1, shown in 2, the utility model comprises board 1, prism assemblies 2, prism carriage 4, centering rod 6 and supporting frame 7, prism assemblies 2 is fixedly connected with board 1 by rotating shaft 3, prism carriage 4 is rotationally connected with rotating shaft 3, prism carriage 4 is fixedly connected with centering rod 6 by connection part 5, described connection part 5 comprises cylindric connecting head 51, connecting base 52, connecting head 51 1 ends are provided with externally threaded connecting end A512, be provided with round table-like positioning boss 511 between connecting end A512 and the connecting head 51, connecting base 52 1 ends are the hollow circular ring shape, its internal diameter size and connecting head 51 outside dimensions are complementary, the opposite end is provided with connecting end B521, described connecting head 51, positioning boss 511, connecting end A512 makes by copper product, described connecting end A512 is fixedly connected with prism carriage 4 screw threads, and connecting end B521 is fixedly connected with centering rod 6 screw threads.
The utility model has reached the foregoing invention purpose in sum.
Claims (3)
1. survey and draw the centering rod connection part for one kind, comprise board (1), prism assemblies (2), prism carriage (4), centering rod (6) and supporting frame (7), prism assemblies (2) is fixedly connected with board (1) by rotating shaft (3), prism carriage (4) is rotationally connected with rotating shaft (3), prism carriage (4) is fixedly connected with centering rod (6) by connection part (5), it is characterized in that: described connection part (5) comprises cylindric connecting head (51), connecting base (52), connecting head (51) one ends are provided with externally threaded connecting end A(512), connecting end A(512) and be provided with round table-like positioning boss (511) between the connecting head (51), connecting base (52) one ends are the hollow circular ring shape, its internal diameter size and connecting head (51) outside dimension is complementary, and the opposite end is provided with connecting end B(521).
2. a kind of mapping centering rod connection part according to claim 1 is characterized in that: described connecting head (51), positioning boss (511), connecting end A(512) make by copper product.
3. a kind of mapping centering rod connection part according to claim 1 and 2 is characterized in that: described connecting end A(512) be fixedly connected with connecting end B(521 with prism carriage (4) screw thread) be fixedly connected with centering rod (6) screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281834 CN203240210U (en) | 2013-05-22 | 2013-05-22 | Connecting assembly of surveying and drawing centering rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320281834 CN203240210U (en) | 2013-05-22 | 2013-05-22 | Connecting assembly of surveying and drawing centering rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240210U true CN203240210U (en) | 2013-10-16 |
Family
ID=49317507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320281834 Expired - Fee Related CN203240210U (en) | 2013-05-22 | 2013-05-22 | Connecting assembly of surveying and drawing centering rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240210U (en) |
-
2013
- 2013-05-22 CN CN 201320281834 patent/CN203240210U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140522 |