CN209851906U - Portable folding stainless steel long ruler - Google Patents
Portable folding stainless steel long ruler Download PDFInfo
- Publication number
- CN209851906U CN209851906U CN201920553534.5U CN201920553534U CN209851906U CN 209851906 U CN209851906 U CN 209851906U CN 201920553534 U CN201920553534 U CN 201920553534U CN 209851906 U CN209851906 U CN 209851906U
- Authority
- CN
- China
- Prior art keywords
- ruler body
- groove
- waist
- ruler
- shaped
- 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
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 10
- 239000010935 stainless steel Substances 0.000 title claims abstract description 10
- 238000013507 mapping Methods 0.000 abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a portable folding stainless steel long ruler, which comprises a first ruler body, a second ruler body and a fastening nut, wherein the right end of the first ruler body is provided with a fixed shaft, and the left end of the second ruler body is sleeved on the fixed shaft of the first ruler body and is fixed by the fastening nut; the whole first ruler body is of a straight plate-shaped structure with a rectangular cross section, a first step groove is formed in the upper face of the right end of the first ruler body, a waist-shaped groove is formed in the first step groove, a fixing shaft is arranged in the center of the left end of the waist-shaped groove, and external threads matched with the fastening nut are arranged on the upper portion of the fixing shaft. The utility model has the advantages that: the utility model discloses simple structure, portable, ruler detachable uses, also can use after the combination, and its combination speed is fast, and the structure after the combination has the ruler body straight, is favorable to surveying and mapping and the little characteristics of surveying and mapping error.
Description
Technical Field
The utility model relates to a measuring tool specifically is a long ruler of portable folding stainless steel.
Background
In the surveying and mapping construction process of the field or special terrain, the existing long ruler is inconvenient to carry due to long length; the conventional portable folding ruler is basically divided into two types, one type is a multi-section hinged form, the other type is a telescopic form, and in any form, in actual surveying and mapping, the problems that the ruler body is not flat enough, the ruler side is not coplanar compared with the plane, and the two ends of the ruler are uneven exist, so that the requirement on surveying and mapping precision is difficult to meet.
Disclosure of Invention
The utility model aims at providing a long ruler of portable folding stainless steel is applicable to the actual survey and drawing of open-air or special topography, on portable basis, has that whole blade is straight, be convenient for survey and drawing and the characteristics that mapping error is little.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a portable folding stainless steel long ruler comprises a first ruler body, a second ruler body and a fastening nut, wherein a fixed shaft is arranged at the right end of the first ruler body, and the left end of the second ruler body is sleeved on the fixed shaft of the first ruler body and fixed through the fastening nut; the whole first ruler body is of a straight plate-shaped structure with a rectangular cross section, a first step groove is formed in the upper surface of the right end of the first ruler body, a waist-shaped groove is formed in the first step groove, a fixing shaft is arranged in the center of the left end of the waist-shaped groove, and external threads matched with the fastening nut are arranged on the upper portion of the fixing shaft; the whole second ruler body is also of a straight plate-shaped structure, the shape size of the cross section of the second ruler body is the same as that of the cross section of the first ruler body, the bottom surface of the left end of the second ruler body is provided with a second step groove matched with the first step groove, the second step groove is provided with a waist-shaped boss in clearance fit with the waist-shaped groove of the first ruler body, and the center of the waist-shaped boss corresponding to the fixed shaft in the waist-shaped groove is provided with a through hole matched with the fixed shaft.
The axial depth of the second stepped groove is equal to that of the first stepped groove, and the sum of the radial groove depths of the second stepped groove and the first stepped groove is equal to the thickness of the first ruler body.
The height of the waist-shaped boss relative to the bottom surface of the second step groove is less than or equal to the groove depth of the waist-shaped groove.
The utility model has the advantages that: the utility model discloses simple structure, portable, ruler detachable uses, also can use after the combination, and its combination speed is fast, and the structure after the combination has the ruler body straight, is favorable to surveying and mapping and the little characteristics of surveying and mapping error.
Drawings
Fig. 1 is a schematic view of the overall structure dispersion of the present invention.
Fig. 2 is an enlarged view of a frame a in fig. 1.
Fig. 3 is a fragmentary top view without the fastening bolts.
Fig. 4 is a bottom view of the dispersion without the fastening bolts.
In the figure, the ruler comprises a ruler body 1, a first ruler body 2, a second ruler body 3, a fastening bolt 4, a fixing shaft 5, a through hole 6, a first step groove 7, a second step groove 8, a waist-shaped groove and a waist-shaped boss 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, the portable folding stainless steel long ruler comprises a first ruler body 1, a second ruler body 2 and a fastening nut 3, wherein a fixed shaft 4 is arranged at the right end of the first ruler body 1, and the left end of the second ruler body 2 is sleeved on the fixed shaft 4 of the first ruler body 1 and is fixed through the fastening nut 3; the whole first ruler body 1 is of a straight plate-shaped structure with a rectangular cross section, a first step groove 6 is arranged on the upper surface of the right end of the first ruler body, a waist-shaped groove 8 is arranged on the first step groove, a fixed shaft 4 is arranged at the center of the left end of the waist-shaped groove, and an external thread matched with the fastening nut 3 is arranged at the upper part of the fixed shaft 4; the whole second ruler body 2 is also of a straight plate-shaped structure, the shape and size of the cross section of the second ruler body are the same as those of the cross section of the first ruler body 1, a second step groove 7 matched with the first step groove 6 is arranged on the bottom surface of the left end of the second ruler body, a waist-shaped boss 9 in clearance fit with the waist-shaped groove 8 of the first ruler body 1 is arranged on the second step groove 7, and a through hole 5 matched with the fixing shaft 4 is formed in the position, corresponding to the center of the fixing shaft 4 in the waist-shaped groove 8, of the waist-shaped boss 9.
The axial depth of the second stepped groove 7 is equal to that of the first stepped groove 6, and the sum of the radial groove depths of the second stepped groove 7 and the first stepped groove 6 is equal to the thickness of the first ruler body 1.
The height of the waist-shaped boss 9 relative to the bottom surface of the second step groove 7 is less than or equal to the groove depth of the waist-shaped groove 8.
The part of the utility model not detailed is prior art.
Claims (3)
1. The utility model provides a long ruler of portable folding stainless steel which characterized by: the left end of the second ruler body is sleeved on the fixed shaft of the first ruler body and fixed through the fastening nut; the whole first ruler body is of a straight plate-shaped structure with a rectangular cross section, a first step groove is formed in the upper surface of the right end of the first ruler body, a waist-shaped groove is formed in the first step groove, a fixing shaft is arranged in the center of the left end of the waist-shaped groove, and external threads matched with the fastening nut are arranged on the upper portion of the fixing shaft; the whole second ruler body is also of a straight plate-shaped structure, the shape size of the cross section of the second ruler body is the same as that of the cross section of the first ruler body, the bottom surface of the left end of the second ruler body is provided with a second step groove matched with the first step groove, the second step groove is provided with a waist-shaped boss in clearance fit with the waist-shaped groove of the first ruler body, and the center of the waist-shaped boss corresponding to the fixed shaft in the waist-shaped groove is provided with a through hole matched with the fixed shaft.
2. The portable folding stainless steel straightedge of claim 1, wherein: the axial depth of the second stepped groove is equal to that of the first stepped groove, and the sum of the radial groove depths of the second stepped groove and the first stepped groove is equal to the thickness of the first ruler body.
3. The portable folding stainless steel straightedge of claim 1, wherein: the height of the waist-shaped boss relative to the bottom surface of the second step groove is less than or equal to the groove depth of the waist-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920553534.5U CN209851906U (en) | 2019-04-23 | 2019-04-23 | Portable folding stainless steel long ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920553534.5U CN209851906U (en) | 2019-04-23 | 2019-04-23 | Portable folding stainless steel long ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209851906U true CN209851906U (en) | 2019-12-27 |
Family
ID=68938606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920553534.5U Expired - Fee Related CN209851906U (en) | 2019-04-23 | 2019-04-23 | Portable folding stainless steel long ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209851906U (en) |
-
2019
- 2019-04-23 CN CN201920553534.5U patent/CN209851906U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |