CN202747981U - Measurement instrument for inner diameter of barrel - Google Patents
Measurement instrument for inner diameter of barrel Download PDFInfo
- Publication number
- CN202747981U CN202747981U CN201220468309.XU CN201220468309U CN202747981U CN 202747981 U CN202747981 U CN 202747981U CN 201220468309 U CN201220468309 U CN 201220468309U CN 202747981 U CN202747981 U CN 202747981U
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- CN
- China
- Prior art keywords
- movable slide
- slide calliper
- calliper rule
- isoceles triangle
- triangle scale
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- 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 - Lifetime
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
Provided by the utility model is a measurement instrument for an inner diameter of a barrel. The measurement instrument comprises an isosceles triangle scale, a first movable caliper and a second movable caliper; and a bolt is arranged on the isosceles triangle scale. The first movable caliper is provided with a first sliding chute that is connected with the bolt in a sliding mode; and the tail end of the first movable caliper is a pointed end. The second movable caliper is provided with a second sliding chute that is connected with the bolt in a sliding mode; and the tail end of the second movable caliper is a pointed end. Besides, a connecting line of the pointed end of the tail end of the first movable caliper and the pointed end of the tail end of the second movable caliper is superposed with a vertical line of the bottom edge of the isosceles triangle scale. According to the utility model, the beneficial effects of the measurement instrument are as follows: when the inner diameter of the barrel is measured, the measurement instrument is used to measure the inner diameter rapidly and effectively; the operation is simple; and the accuracy is good.
Description
Technical field
The utility model belongs to the surveying instrument field, especially relates to a kind of drum internal diameter measuring instrument.
Background technology
Present inner diameter measurement to drum, lack general survey instrument, the common conventional instruments such as vernier caliper often are difficult to satisfy actual needs, general method commonly used is by ruler manual observation comparison or by tape measure its circular girth to be measured, then calculate by formula, the anti-internal diameter of releasing, such method of testing not only is difficult to guarantee actual error, and the accuracy of test result is also had a significant impact.
Summary of the invention
Problem to be solved in the utility model provides a kind of drum internal diameter measuring instrument, especially is fit to fast and effectively the internal diameter of drum be measured, and uses this drum internal diameter measuring instrument simple to operate, and accuracy is good.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the utility model provides a kind of drum internal diameter measuring instrument, comprises isoceles triangle scale, the first movable slide calliper rule and the second movable slide calliper rule, and described isoceles triangle scale is provided with bolt; The described first movable slide calliper rule are provided with the first sliding tray, and the first sliding tray and described bolt are slidingly connected, and the end of the first movable slide calliper rule is most advanced and sophisticated; The described second movable slide calliper rule are provided with the second sliding tray, and the second sliding tray and described bolt are slidingly connected, and the end of the second movable slide calliper rule is most advanced and sophisticated; The tip of the described first movable slide calliper rule end overlaps with the vertical line on isoceles triangle scale base with the line at the tip of the second movable slide calliper rule end.
Further, the vertical line of described isoceles triangle scale upper surface is provided with a groove, and the described first movable slide calliper rule and the second movable slide calliper rule all embed in the described groove.
Further, described isoceles triangle scale lower surface place is provided with two triangular prisms, and described triangular prism be positioned at described isoceles triangle scale two base angles under; Two side end faces of triangular prism and the bottom face of isoceles triangle scale and side end face are coplanar respectively.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, when the drum internal diameter is measured, use this drum internal diameter measuring instrument, can measure fast and effectively the internal diameter of drum, simple to operate, accuracy is good.
Description of drawings
Fig. 1 is the structural representation of embodiment 1
Fig. 2 is the isoceles triangle scale perspective view of embodiment 1
Synoptic diagram when Fig. 3 is the use of embodiment 1
Fig. 4 is the structural representation of embodiment 2
Fig. 5 is the isoceles triangle scale structural representation of embodiment 2
Synoptic diagram when Fig. 6 is the use of embodiment 2
Among the figure:
1, the first movable slide calliper rule 2, isoceles triangle scale 3, the second movable slide calliper rule
4, drum 11, the first sliding tray 21, bolt
22, groove 23, triangular prism 31, the second sliding tray
Embodiment
By following examples the utility model is further specified.
Embodiment 1
As shown in Figure 1, 2, 3, the utility model provides a kind of drum internal diameter measuring instrument, comprise isoceles triangle scale 2, the first movable slide calliper rule 1 and the second movable slide calliper rule 3, described isoceles triangle scale 2 is provided with a bolt 21, and bolt 21 is positioned on the vertical line on isoceles triangle scale 2 bases; The described first movable slide calliper rule 1 are provided with the first sliding tray 11, the first sliding trays 11 and are slidingly connected with described bolt 21, and the end of the first movable slide calliper rule 1 is most advanced and sophisticated; The described second movable slide calliper rule 3 are provided with the second sliding tray 31, the second sliding trays 31 and are slidingly connected with described bolt 21, and the first movable slide calliper rule 1 are positioned at the top of the second movable slide calliper rule 3, and the end of the second movable slide calliper rule 3 is most advanced and sophisticated; The tip of the described first movable slide calliper rule 1 end overlaps with the vertical line on isoceles triangle scale 2 bases with the line at the tip of the second movable slide calliper rule 3 ends.
Described isoceles triangle scale 2 lower surfaces places is provided with two triangular prisms 23, and described triangular prism 23 be positioned at described isoceles triangle scale 2 two base angles under; Two side end faces of triangular prism 23 and the bottom face of isoceles triangle scale 2 and side end face are coplanar respectively.The setting of triangular prism 23 has prolonged the contact line length of isoceles triangle scale 2 and drum 4, and operation is more prone to, firmly when using this device to measure, and measurement result is more accurate.
The vertical line of isoceles triangle scale 2 upper surfaces is provided with the width of a groove 22, the first movable slide calliper rule 1 and the second movable slide calliper rule 3, and all the width with groove is identical, and the first movable slide calliper rule 1 and the second movable slide calliper rule 3 all embed in the described groove 22.Arranging of groove 22 guaranteed that the object that the first adjustable rule 1 and the second adjustable rule 3 are surveyed is the drum internal diameter, guarantees that namely the tip of the first movable slide calliper rule 1 end overlaps with the internal diameter of this drum 4 with the line at the tip of the second movable slide calliper rule 3 ends.
The tip of the first movable slide calliper rule 1 and the second movable slide calliper rule 3 ends all is positioned on the symmetrical center line of movable slide calliper rule in the present embodiment.
The course of work of present embodiment: as shown in Figure 3, when using the utility model, the wedge angle of first two base angles of isoceles triangle scale 2 being located all contacts with the inside surface of drum, has guaranteed that the vertical line on isoceles triangle scale 2 bases overlaps with an internal diameter of survey drum 4; Then, the tip that spurs the first movable slide calliper rule 1 all contacts with the inside surface of drum 4 with the most advanced and sophisticated of the second movable slide calliper rule 3; At last, screw bolt 21 fixing the first movable slide calliper rule 1 and the second movable slide calliper rule 3, and read the scale reading of the first movable slide calliper rule 1 and the second movable slide calliper rule 3, both sums are the internal diameter of the drum of surveying.
Shown in Fig. 4,5,6, the difference of present embodiment and embodiment 1 is: described isoceles triangle scale 2 is provided with the both sides that 21, two bolts 21 of two bolts lay respectively at the vertical line on isoceles triangle scale 2 bases; The first movable slide calliper rule 1 and the second movable slide calliper rule 3 are in the same level face, the bolt 21 of the first sliding tray 11 and a side is slidingly connected, the second sliding tray 31 is slidingly connected with the bolt 21 of opposite side, and the first movable slide calliper rule 1 and second movable slide calliper rule 3 both width sums equal the width of groove 22; The tip of the first movable slide calliper rule 1 and the second movable slide calliper rule 3 ends all is positioned at one of them side of movable slide calliper rule; And the most advanced and sophisticated place side of two movable slide calliper rule ends is straight line altogether.
The course of work of present embodiment is equal to the course of work of embodiment 1.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (3)
1. drum internal diameter measuring instrument, it is characterized in that: comprise isoceles triangle scale, the first movable slide calliper rule and the second movable slide calliper rule, described isoceles triangle scale is provided with bolt; The described first movable slide calliper rule are provided with the first sliding tray, and the first sliding tray and described bolt are slidingly connected, and the end of the first movable slide calliper rule is most advanced and sophisticated; The described second movable slide calliper rule are provided with the second sliding tray, and the second sliding tray and described bolt are slidingly connected, and the end of the second movable slide calliper rule is most advanced and sophisticated; The tip of the described first movable slide calliper rule end overlaps with the vertical line on isoceles triangle scale base with the line at the tip of the second movable slide calliper rule end.
2. a kind of drum internal diameter measuring instrument according to claim 1, it is characterized in that: the vertical line of described isoceles triangle scale upper surface is provided with a groove, and the described first movable slide calliper rule and the second movable slide calliper rule all embed in the described groove.
3. a kind of drum internal diameter measuring instrument according to claim 1 is characterized in that: place, described isoceles triangle scale lower surface is provided with two triangular prisms, and described triangular prism be positioned at described isoceles triangle scale two base angles under; Two side end faces of triangular prism and the bottom face of isoceles triangle scale and side end face are coplanar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468309.XU CN202747981U (en) | 2012-09-13 | 2012-09-13 | Measurement instrument for inner diameter of barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468309.XU CN202747981U (en) | 2012-09-13 | 2012-09-13 | Measurement instrument for inner diameter of barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747981U true CN202747981U (en) | 2013-02-20 |
Family
ID=47707359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220468309.XU Expired - Lifetime CN202747981U (en) | 2012-09-13 | 2012-09-13 | Measurement instrument for inner diameter of barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747981U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383231A (en) * | 2013-07-22 | 2013-11-06 | 南京三邦金属复合材料有限公司 | Expansion joint inner diameter measuring device |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN108278955A (en) * | 2018-05-03 | 2018-07-13 | 四川大学 | A method of measuring large cylinder internal diameter |
| CN108413840A (en) * | 2018-05-03 | 2018-08-17 | 四川大学 | A method of measuring big body diameter |
| CN108571923A (en) * | 2018-05-03 | 2018-09-25 | 四川大学 | A device for measuring the diameter of a large cylinder |
| CN108827117A (en) * | 2018-05-03 | 2018-11-16 | 四川大学 | A kind of device measuring large cylinder internal diameter |
-
2012
- 2012-09-13 CN CN201220468309.XU patent/CN202747981U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383231A (en) * | 2013-07-22 | 2013-11-06 | 南京三邦金属复合材料有限公司 | Expansion joint inner diameter measuring device |
| CN105318807A (en) * | 2014-06-05 | 2016-02-10 | 江苏华阳金属管件有限公司 | Circular steel pipe diameter measuring tool |
| CN108278955A (en) * | 2018-05-03 | 2018-07-13 | 四川大学 | A method of measuring large cylinder internal diameter |
| CN108413840A (en) * | 2018-05-03 | 2018-08-17 | 四川大学 | A method of measuring big body diameter |
| CN108571923A (en) * | 2018-05-03 | 2018-09-25 | 四川大学 | A device for measuring the diameter of a large cylinder |
| CN108827117A (en) * | 2018-05-03 | 2018-11-16 | 四川大学 | A kind of device measuring large cylinder internal diameter |
| CN108827117B (en) * | 2018-05-03 | 2019-10-25 | 四川大学 | A device for measuring the inner diameter of a large cylinder |
| CN108278955B (en) * | 2018-05-03 | 2019-10-25 | 四川大学 | A Method of Measuring the Inner Diameter of Large Cylinder |
| CN108413840B (en) * | 2018-05-03 | 2019-11-08 | 四川大学 | A Method of Measuring the Diameter of Large Cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |