CN205860949U - Three-pawl type diameter measuring device - Google Patents
Three-pawl type diameter measuring device Download PDFInfo
- Publication number
- CN205860949U CN205860949U CN201620795526.8U CN201620795526U CN205860949U CN 205860949 U CN205860949 U CN 205860949U CN 201620795526 U CN201620795526 U CN 201620795526U CN 205860949 U CN205860949 U CN 205860949U
- Authority
- CN
- China
- Prior art keywords
- measuring device
- diameter measuring
- pawl type
- type diameter
- rods
- 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
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a kind of three-pawl type diameter measuring device, including a plate and three head rods, the edge of described connecting plate is evenly arranged with three connecting holes, one end of described head rod is hinged with described connecting hole, described three-pawl type diameter measuring device also includes three the second connecting rods and three rotation rollers, one end of the second described connecting rod and the other end of described head rod form adjustable articulated structure by bolt, the other end of the second described connecting rod is mutually perpendicular to arrange and composition rotation connection structure with the center of described one end rotating roller.The advantage of three-pawl type diameter measuring device of the present utility model is: with three head rods and three the second connecting rods, second connecting rod forms adjustable articulated structure with head rod, thus the scope of measurement is bigger, also with rotating roller, can rotate when contacting with disc, thus be not easy to be worn, service life is longer.
Description
Technical field
This utility model relates to a kind of three-pawl type diameter measuring device.
Background technology
Three-pawl type diameter measuring device of the prior art utilizes the end of its three connecting rods to contact with disc, three ends
Portion forms three summits of triangle, and the circumscribed circle diameter of triangle is the diameter of measured disc, owing to user is permissible
More conveniently measure the distance between three ends, thus more conveniently can be read out the diameter of disc by mathematical knowledge,
But the measurable range of three-pawl type diameter measuring device of the prior art is less, and end is easily worn, thus use the longevity
Order shorter.
Utility model content
This utility model mainly solves the technical problem existing for prior art, thus provides a kind of with three first
Connecting rod and three the second connecting rods, the second connecting rod and the head rod adjustable articulated structure of composition, thus measure model
Enclose relatively big, also with rotating roller, can rotate when contacting with disc, thus be not easy to be worn, the three-jaw that service life is longer
Formula diameter measuring device.
This utility model solves the technical problem in the presence of prior art by following technical proposals:
A kind of three-pawl type diameter measuring device, including a plate and three head rods, the limit of described connecting plate
Edge is evenly arranged with three connecting holes, the three-pawl type that one end of described head rod is hinged with described connecting hole, described
Diameter measuring device also includes that three the second connecting rods and three rotate rollers, one end of the second described connecting rod and described the
The other end of one connecting rod forms adjustable rotation connection structure, the other end of the second described connecting rod and institute by bolt
The center of the one end rotating roller stated is mutually perpendicular to arrange and composition rotation connection structure.
As this utility model preferred embodiment, the described other end rotating roller be provided centrally with a cone.
The advantage of three-pawl type diameter measuring device of the present utility model is: connect with three head rods and three second
Extension bar, the second connecting rod and head rod form adjustable articulated structure, thus the scope of measurement is relatively big, also with rotation
Roller, can rotate when contacting with disc, thus be not easy to be worn, and service life is longer.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the perspective view of three-pawl type diameter measuring device of the present utility model；
Fig. 2 is the perspective view rotating roller in Fig. 1；
Wherein:
1, connecting plate；
2, head rod；
3, the second connecting rod；31, cone；
4, roller is rotated.
Detailed description of the invention
Below preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature energy
It is easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model is made apparent clear and definite defining.
The advantage of three-pawl type diameter measuring device of the present utility model is: connect with three head rods and three second
Extension bar, the second connecting rod and head rod form adjustable articulated structure, thus the scope of measurement is relatively big, also with rotation
Roller, can rotate when contacting with disc, thus be not easy to be worn, and service life is longer.
As it is shown in figure 1, a kind of three-pawl type diameter measuring device, including 1, three head rods of a plate 2, three the
Two connecting rods 3 and three rotation rollers 4, the edge of this connecting plate 1 is evenly arranged with three connecting holes, the one of this head rod 2
Holding hinged with this connecting hole, one end of this second connecting rod 3 forms scalable with the other end of this head rod 2 by bolt
Articulated structure, this structure makes the user can this head rod of large range of regulation 2 and this second connecting rod 3 composition
The length of claw structure, thus measurable diameter range is the biggest, the other end of this second connecting rod 3 and this rotation roller 4
The center of one end is mutually perpendicular to arrange and composition rotation connection structure, and this structure makes this rotation roller 4 permissible when contacting with disc
Rotating, such that it is able to avoid being worn, service life is longer.When measuring diameter, it is only necessary to first measure three centers rotating roller 4
Distance between axle, calculates its circumscribed circle diameter, and the diameter adding this rotation roller 4 is the diameter of measured disc.
As in figure 2 it is shown, the other end of this rotation roller 4 be provided centrally with a cone 31.This structure, can facilitate user
Find out the center of this rotation roller 4 more accurately, such that it is able to more accurately more easily measure between the central shaft rotating roller 4
Distance.
It is only more than the mentality of designing of some embodiments of the present utility model, in the case of system allows, this reality
The most external more functional module can be expanded to novel, thus extend its function to greatest extent.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any change expected without creative work or replacement, all should contain within protection domain of the present utility model.
Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (2)
1. a three-pawl type diameter measuring device, including a plate (1) and three head rods (2), described connecting plate
(1) edge is evenly arranged with three connecting holes, and one end of described head rod (2) is hinged with described connecting hole, its
It is characterised by: described three-pawl type diameter measuring device also includes three the second connecting rods (3) and three rotations roller (4), described
One end of the second connecting rod (3) and the other end of described head rod (2) form adjustable hinged knot by bolt
Structure, the other end of described the second connecting rod (3) is mutually perpendicular to arrange and composition with the center of one end of described rotation roller (4)
Rotation connection structure.
Three-pawl type diameter measuring device the most according to claim 1, it is characterised in that: another of described rotation roller (4)
That holds is provided centrally with a cone (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620795526.8U CN205860949U (en) | 2016-07-26 | 2016-07-26 | Three-pawl type diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620795526.8U CN205860949U (en) | 2016-07-26 | 2016-07-26 | Three-pawl type diameter measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205860949U true CN205860949U (en) | 2017-01-04 |
Family
ID=57649297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620795526.8U Expired - Fee Related CN205860949U (en) | 2016-07-26 | 2016-07-26 | Three-pawl type diameter measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205860949U (en) |
-
2016
- 2016-07-26 CN CN201620795526.8U patent/CN205860949U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105004247B (en) | One kind measurement circular arc device | |
| CN205860949U (en) | Three-pawl type diameter measuring device | |
| CN205426136U (en) | Be fit for building site measuring device | |
| CN206347947U (en) | A kind of special drawing scale chi of construction costs | |
| CN202734692U (en) | Portable measuring ruler | |
| CN204854564U (en) | Measure circular arc device | |
| CN205580639U (en) | Torsional spring torsion detects frock | |
| CN204438994U (en) | A kind of electrical contact eccentric measuring set | |
| CN206870694U (en) | A kind of Students ' Learning multifunctional ruler | |
| CN204373552U (en) | For the cubing of notebook-type computer screen bracing strut | |
| CN202635382U (en) | Oblique insertion-type forked rod support | |
| CN209653944U (en) | A kind of dual-purpose ladder | |
| CN210664184U (en) | Drawing dipperstick for engineering cost | |
| CN202710396U (en) | Torsional spring force-measuring fixture | |
| CN202498908U (en) | Plate gauge combination teaching aid | |
| CN205426012U (en) | All -round space protractor | |
| CN204165524U (en) | Torsional deformation measuring device | |
| CN205905619U (en) | Calipers capable of drawing ellipse | |
| CN206097616U (en) | Moment balance experimental apparatus | |
| CN212158804U (en) | Height and weight measuring device | |
| CN209063771U (en) | A kind of novel compasses | |
| CN209132204U (en) | A kind of dissolved oxygen meter device of anti-collision rod for corners of tables | |
| CN215676728U (en) | Drawing measuring ruler for folding green architectural design | |
| CN214502691U (en) | Embedded temperature sensor | |
| CN211013891U (en) | Strength detection equipment for concrete convenient to use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170104 Termination date: 20180726 |