CN205578441U - Cylindric lock - Google Patents
Cylindric lock Download PDFInfo
- Publication number
- CN205578441U CN205578441U CN201620287440.4U CN201620287440U CN205578441U CN 205578441 U CN205578441 U CN 205578441U CN 201620287440 U CN201620287440 U CN 201620287440U CN 205578441 U CN205578441 U CN 205578441U
- Authority
- CN
- China
- Prior art keywords
- arc surface
- shaft
- cylindric lock
- radius platform
- design
- 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
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model discloses a cylindric lock, including straight cylindrical shaft, the top of shaft upwards sets up the arc surface, and the bottom of shaft becomes the radius platform to the internal contraction, and the last base angle that isosceles trapezoid was fallen in radius platform axle cross -section is 75 degrees, and the bottom of radius platform sets up the arc surface downwards, the utility model discloses a design of arc surface is adopted on the top, changes to trun into the skew force to straight to power when atress downwards, and the bottom arc surface has been for the atress provides certain buffering when advancing the pinhole, the design of radius platform between bottom arc surface and the shaft for be difficult for walking during the cylindric lock suction hole partially, the global design has reduced cylindric lock and caused the probability of bending, breaking and damaging the pinhole under extrusion force and shearing force effect, has reduced the part loss, has reduced manufacturing cost.
Description
Technical field
This utility model relates to Machining Technology field, is specifically related to a kind of straight pin.
Background technology
Straight pin is a kind of machine components extensively used in commercial production, it is mainly used in location, can also be used for connecting, it relies on interference fit to be fixed in pin-and-hole, bear extruding force and shearing force, existing standard round pin, goes out outside cylindrical purely, the various ways such as also two is truncated cone-shaped, two is arc surface, one arc surface of a truncated cone-shaped；Existing various forms of straight pin, all exists when location and easily deviates the problem of straight line into pin-and-hole direction, and causes pin bending, fractures and the problem such as pin-and-hole damage.
Utility model content
The purpose of this utility model aims to provide a kind of straight pin, overcomes the deficiencies in the prior art, effectively reduces the probability of bending when straight pin enters pin-and-hole.
For achieving the above object, a kind of straight pin of the present utility model, including right cylindrical shaft, the top of shaft sets up arc surface, the bottom of shaft is inwardly shrunk to inverted round stage, and the upper base angle of inverted round stage shaft section isosceles trapezoid is 75 degree, the down-set arc surface in bottom of inverted round stage.
A kind of straight pin of the present utility model compared with prior art has following excellent effect: top of the present utility model uses the design of arc surface, it is more easy to be transferred to by skew force directly to power when to lower stress, bottom arc surface is that stress provides certain buffering when entering pin-and-hole, the design of inverted round stage between bottom arc surface and shaft, make to be difficult to wander off during straight pin inlet hole, global design reduces straight pin and causes bending under extruding force and shear action, fractures and damage the probability of pin-and-hole, decrease accessory loss, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the overall schematic of this utility model straight pin.
Wherein: 1 is shaft, 2 is arc surface, and 3 is inverted round stage.
Detailed description of the invention
Below in conjunction with the accompanying drawings straight pin of the present utility model is described in further detail.
Straight pin shown in Fig. 1, including right cylindrical shaft 1, the top of shaft 1 sets up arc surface 2, and the bottom of shaft 1 is inwardly shrunk to inverted round stage 3, and the upper base angle of inverted round stage 3 shaft section isosceles trapezoid is 75 degree, the down-set arc surface in bottom 2 of inverted round stage 3.
Claims (1)
1. a straight pin, including right cylindrical shaft (1), it is characterized in that: the top of shaft (1) sets up arc surface (2), the bottom of shaft (1) is inwardly shrunk to inverted round stage (3), the upper base angle of inverted round stage (3) shaft section isosceles trapezoid is 75 degree, the down-set arc surface in the bottom (2) of inverted round stage (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287440.4U CN205578441U (en) | 2016-04-08 | 2016-04-08 | Cylindric lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287440.4U CN205578441U (en) | 2016-04-08 | 2016-04-08 | Cylindric lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578441U true CN205578441U (en) | 2016-09-14 |
Family
ID=56865148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620287440.4U Expired - Fee Related CN205578441U (en) | 2016-04-08 | 2016-04-08 | Cylindric lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578441U (en) |
-
2016
- 2016-04-08 CN CN201620287440.4U patent/CN205578441U/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: 20160914 Termination date: 20200408 |