CN203310344U - Telescopic outer outside calipers - Google Patents
Telescopic outer outside calipers Download PDFInfo
- Publication number
- CN203310344U CN203310344U CN2013203472700U CN201320347270U CN203310344U CN 203310344 U CN203310344 U CN 203310344U CN 2013203472700 U CN2013203472700 U CN 2013203472700U CN 201320347270 U CN201320347270 U CN 201320347270U CN 203310344 U CN203310344 U CN 203310344U
- Authority
- CN
- China
- Prior art keywords
- arm
- auxiliary arm
- main arm
- telescopic outer
- telescopic
- 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
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a pair of telescopic outer calipers. The telescopic outer calipers include a clamping shaft, a left main arm, a right main arm, a left auxiliary arm and a right auxiliary arm. The telescopic outer calipers are characterized in that the front ends of the left main arm and the right main arm are connected with each other through the clamping shaft; back portions of the left main arm and the right main arm are both provided with a slide groove; front portions of the left auxiliary arm and the right auxiliary arm are both provided with pins; the pins on the left auxiliary arm and the right auxiliary arm are clamped in the side grooves of the left main arm and the right main arm, such that the left auxiliary arm and the right auxiliary arm can be connected with the left main arm and the right main arm; and the tail ends of the left auxiliary arm and the right auxiliary arm are both provided with a clamping claw. The telescopic outer calipers of the utility model can measure drilling tool outer diameters in a larger range, and are convenient to carry and simple to operate, and are very suitable for field use.
Description
Technical field:
The utility model relates to survey instrument, is specifically related to a kind of telescopic wild card.
Technical background:
When entering well, drilling tool needs measurement size, skeletonizing.The size of surveying comprises internal diameter, external diameter, length, button-type etc.At present, measure the wild card that the drilling tool external diameter adopts, measurement range is little, can only measure external diameter at 300mm with interior instrument.If, and employing large-scale metrology instrument is aobvious heavy, carry very inconvenient.Therefore drilling team adopts the way of measuring girth more at present, and to calculate external diameter, accuracy is lower.
The utility model content:
Technical problem to be solved in the utility model is to provide a kind of telescopic wild card.
The technical solution of the utility model is: a kind of telescopic wild card comprises axis, left and right principal arm and left and right auxiliary arm; Be characterized in: the front end of left and right principal arm connects by axis, the rear portion of left and right principal arm is provided with chute, the front portion of left and right auxiliary arm is provided with pin, and the pin on left and right auxiliary arm snaps in respectively in the chute of left and right principal arm, and left and right auxiliary arm is connected with left and right principal arm respectively; The tail end of left and right auxiliary arm is provided with claw.
The utility model utilizes pin to snap in chute and in chute, moves forward and backward to increase or shorten the length of card arm, thereby changes measurement range, also is convenient for carrying.
The beneficial effect of a kind of telescopic wild card described in the utility model is: can measure wider drilling tool external diameter, and easy to carry, simple to operate, be applicable to very much field condition and use.
The accompanying drawing explanation:
Fig. 1 is the structural representation of a kind of telescopic wild card described in the utility model;
Embodiment:
Referring to Fig. 1, a kind of telescopic wild card, consist of axis 1, left and right principal arm 2A, 2B and left and right auxiliary arm 3A, 3B; The front end of left and right principal arm 2A, 2B connects by axis 1, the rear portion of left and right principal arm 2A, 2B is provided with chute 4, the front portion of left and right auxiliary arm 3A, 3B is provided with pin 5, pin on left and right auxiliary arm 3A, 3B snaps in respectively in the chute of left and right principal arm 2A, 2B, and left and right auxiliary arm 3A, 3B are connected with left and right principal arm 2A, 2B respectively; Pin 5 on each auxiliary arm is no less than 2, and 2 pins move simultaneously in chute, guaranteed that principal arm is connected with the straight line of auxiliary arm, is not offset; The tail end of left and right auxiliary arm 3 is provided with claw 6, is used for blocking measured instrument 7 outer radius.
During measurement, by the position of pin in mobile chute, increase or shorten the length of card arm, thereby change measurement range.After being used to complete, sliding pin 5, make principal arm and auxiliary arm overlapping, dwindled the card arm lengths, is easy to carry.
Claims (1)
1. a telescopic wild card, comprise axis (1), left and right principal arm (2A, 2B) and left and right auxiliary arm (3A, 3B); It is characterized in that: the front end of left and right principal arm (2A, 2B) connects by axis (1), the rear portion of left and right principal arm is provided with chute (4), the front portion of left and right auxiliary arm (3A, 3B) is provided with pin (5), pin on left and right auxiliary arm (3A, 3B) snaps in respectively in the chute of left and right principal arm (2A, 2B), and left and right auxiliary arm (3A, 3B) is connected with left and right principal arm (2A, 2B) respectively; The tail end of left and right auxiliary arm (3A, 3B) is provided with claw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203472700U CN203310344U (en) | 2013-06-18 | 2013-06-18 | Telescopic outer outside calipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203472700U CN203310344U (en) | 2013-06-18 | 2013-06-18 | Telescopic outer outside calipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310344U true CN203310344U (en) | 2013-11-27 |
Family
ID=49616547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203472700U Expired - Fee Related CN203310344U (en) | 2013-06-18 | 2013-06-18 | Telescopic outer outside calipers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203310344U (en) |
-
2013
- 2013-06-18 CN CN2013203472700U patent/CN203310344U/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 | ||
| 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: 20131127 Termination date: 20160618 |