CN203766342U - Folding rule for teaching - Google Patents
Folding rule for teaching Download PDFInfo
- Publication number
- CN203766342U CN203766342U CN201420138184.3U CN201420138184U CN203766342U CN 203766342 U CN203766342 U CN 203766342U CN 201420138184 U CN201420138184 U CN 201420138184U CN 203766342 U CN203766342 U CN 203766342U
- Authority
- CN
- China
- Prior art keywords
- orbicule
- folding rule
- rule
- teaching
- section
- 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
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Abstract
The utility model relates to a teaching aid, in particular to a folding rule for teaching, comprising a plurality of rule segments. The ends of the rule segments are all provided with through holes. The rule segments are hinged through hinge shafts penetrating the through holes. Each rule segment is provided with a positioning block mechanism and a positioning groove mechanism around the corresponding through hole. The rule segments are horizontally positioned through the positioning block mechanisms and the positioning groove mechanisms. On the basis of the original folding rule structure, the hinged parts of the adjacent rule segments are provided with the positioning mechanisms, so that the adjacent rule segments can be collinear and the structure is more reasonable; especially during line drawing, the folding rule for teaching is more convenient to operate.
Description
Technical field
The utility model relates to a kind of teaching aid, is specifically related to a kind of teaching folding rule.
Background technology
At present, the folding rule of teaching use has a variety of, substantially all possess picture straight line simultaneously and draw the function of discounting, but general folding rule is when drawing straight line, at the hinged position of two folding rule sections, due to easy rotation, therefore can not draw very easily straight line, in other words when drawing straight line, need two hands according to two folding rule sections, can draw straight line, it is not too convenient to operate simultaneously.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art and provides a kind of structure more reasonable, the teaching folding rule of more convenient operation.
The purpose of this utility model is achieved in that
A kind of teaching folding rule, comprise some folding rule sections, described folding rule section end is provided with through hole, between described folding rule section, pass through hinged through the jointed shaft of through hole, in the folding rule section of described through hole circumference, be provided with locating piece mechanism and detent mechanism, between described folding rule section, by locating piece mechanism and detent mechanism, form horizontal location.
Based on the above, described locating piece mechanism comprises an orbicule one and an orbicule two, the diameter of described orbicule two is less than the diameter of orbicule one, described orbicule one is a hollow-core construction, half of described orbicule one is embedded into through hole circumference and is positioned at the end of folding rule section, described orbicule two is embedded in orbicule one, between described orbicule two and the inwall of orbicule one, is provided with back-moving spring;
Described detent mechanism is a deep-slotted chip breaker, and described deep-slotted chip breaker is to using jointed shaft as center, and the cross section of described deep-slotted chip breaker is corresponding with orbicule one, and the middle part of described deep-slotted chip breaker is provided with a spheric recess corresponding with orbicule two.
Based on the above, on described orbicule one, be provided with a circular open, the diameter of described circular open is less than the diameter of orbicule two.
The utlity model has following advantage:
The utility model is on original folding rule architecture basics, in the hinged position Design Orientation mechanism of two adjacent folding rule sections, thereby make the adjacent folding rule section can be on same straight line, structure be more reasonable, especially when drawing straight line, operate more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of integral body of the present utility model.
Fig. 2 is the side view of adjacent folding rule section connecting portion.
Fig. 3 is the structural representation of folding rule section.
Fig. 4 is the side structure schematic diagram of folding rule section.
Fig. 5 is the enlarged diagram of cross section view of the A part of Fig. 4.
Fig. 6 is the cutaway view of orbicule one.
Fig. 7 is the top view of orbicule one.
The specific embodiment
Below in conjunction with specific embodiment, the utility model will be further described.
As shown in Fig. 1,2,3,4,5,6,7, a kind of teaching folding rule, comprise some folding rule sections, described folding rule section 1 end is provided with through hole 10, between described folding rule section 1, pass through hinged through the jointed shaft 3 of through hole 10, in the folding rule section 1 of described through hole 10 circumference, be provided with locating piece mechanism 6 and detent mechanism 2, between described folding rule section 1, by locating piece mechanism and detent mechanism, form horizontal location.
Based on the above, described locating piece mechanism 6 comprises an orbicule 1 and an orbicule 27, the diameter of described orbicule 27 is less than the diameter of orbicule 1, described orbicule 1 is a hollow-core construction, half of described orbicule 1 is embedded into through hole 10 circumference and is positioned at the end of folding rule section 1, described orbicule 27 is embedded in orbicule 1, between described orbicule 27 and the inwall of orbicule 1, is provided with back-moving spring 9; Described
Described detent mechanism 2 is a deep-slotted chip breaker 4, and described deep-slotted chip breaker 4 is to using jointed shaft 3 as center, and the cross section of described deep-slotted chip breaker 4 is corresponding with orbicule 1, and the middle part of described deep-slotted chip breaker 4 is provided with a spheric recess 5 corresponding with orbicule 27.
When two adjacent folding rule sections are rotated by jointed shaft 3, the locating piece mechanism 6 of a folding rule section 1 slides along deep-slotted chip breaker 4, and at this time orbicule 27 is retracted to orbicule one 8 the insides, and back-moving spring 9 is compressed; When orbicule 1 moves to spherical recess 5, orbicule 27 is under the effect of back-moving spring 9, to orbicule one 8 outsides, stretch out, thereby be stuck in spherical recess 5 the insides, another folding rule is also as a same reason, and two adjacent like this folding rule sections just can form the location of a level, like this when drawing straight line, just can be good at picture straight line, and need not compress two folding rule sections 1 by two hands simultaneously.
Based on the above, on described orbicule 1, be provided with a circular open 11, the diameter of described circular open 11 is less than the diameter of orbicule 27, in the time of back-moving spring 9 effect, can make orbicule 27 be stuck in circular open 11 positions of orbicule 1 like this, orbicule 27 exposes the part of orbicule 1 and the structural correspondence of spherical recess 5, can be good at being installed on spherical recess 5 the insides.Because the spheric recess 5 in adjacent folding rule section 1 is all positioned at the center line position of folding rule section, once form like this location, can be good at guaranteeing on folding rule Duan Yi horizontal line.
Claims (3)
1. a teaching folding rule, comprise some folding rule sections, described folding rule section end is provided with through hole, between described folding rule section, pass through hinged through the jointed shaft of through hole, it is characterized in that: in the folding rule section of described through hole circumference, be provided with locating piece mechanism and detent mechanism, between described folding rule section, by locating piece mechanism and detent mechanism, form horizontal location.
2. a kind of teaching folding rule according to claim 1, it is characterized in that: described locating piece mechanism comprises an orbicule one and an orbicule two, the diameter of described orbicule two is less than the diameter of orbicule one, described orbicule one is a hollow-core construction, half of described orbicule one is embedded into through hole circumference and is positioned at the end of folding rule section, described orbicule two is embedded in orbicule one, between described orbicule two and the inwall of orbicule one, is provided with back-moving spring;
Described detent mechanism is a deep-slotted chip breaker, and described deep-slotted chip breaker is to using jointed shaft as center, and the cross section of described deep-slotted chip breaker is corresponding with orbicule one, and the middle part of described deep-slotted chip breaker is provided with a spheric recess corresponding with orbicule two.
3. a kind of teaching folding rule according to claim 2, is characterized in that: on described orbicule one, be provided with a circular open, the diameter of described circular open is less than the diameter of orbicule two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138184.3U CN203766342U (en) | 2014-03-26 | 2014-03-26 | Folding rule for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138184.3U CN203766342U (en) | 2014-03-26 | 2014-03-26 | Folding rule for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203766342U true CN203766342U (en) | 2014-08-13 |
Family
ID=51283580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138184.3U Expired - Fee Related CN203766342U (en) | 2014-03-26 | 2014-03-26 | Folding rule for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203766342U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572029A (en) * | 2019-09-30 | 2021-03-30 | 田中毅彦 | Portable folding form ruler |
| CN113418430A (en) * | 2021-05-27 | 2021-09-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Multi-folding-ruler positioning device |
| CN113790659A (en) * | 2021-09-10 | 2021-12-14 | 新兴铸管股份有限公司 | Scrap steel thickness grading tool |
-
2014
- 2014-03-26 CN CN201420138184.3U patent/CN203766342U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572029A (en) * | 2019-09-30 | 2021-03-30 | 田中毅彦 | Portable folding form ruler |
| CN113418430A (en) * | 2021-05-27 | 2021-09-21 | 中国航空工业集团公司沈阳飞机设计研究所 | Multi-folding-ruler positioning device |
| CN113790659A (en) * | 2021-09-10 | 2021-12-14 | 新兴铸管股份有限公司 | Scrap steel thickness grading tool |
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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 |
Granted publication date: 20140813 Termination date: 20150326 |
|
| EXPY | Termination of patent right or utility model |