# CN202986514U - 一种数学教学板 - Google Patents

## Info

Publication number
CN202986514U
CN202986514U CN 201220749092 CN201220749092U CN202986514U CN 202986514 U CN202986514 U CN 202986514U CN 201220749092 CN201220749092 CN 201220749092 CN 201220749092 U CN201220749092 U CN 201220749092U CN 202986514 U CN202986514 U CN 202986514U
Authority
CN
China
Prior art keywords
blackboard
mathematical teaching
board
telescopic arm
teaching board
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
Application number
CN 201220749092
Other languages
English (en)
Inventor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 201220749092 priority Critical patent/CN202986514U/zh
Application granted granted Critical
Publication of CN202986514U publication Critical patent/CN202986514U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

## Landscapes

• Drawing Aids And Blackboards (AREA)

## Claims (3)

1.一种数学教学板，包括黑板(1)，其特征在于，在黑板(1)下边缘中段设有伸缩臂(2)，伸缩臂(2)上设有主尺(3)和副尺(4)，主尺(3)和副尺(4)通过转轴(5)与伸缩臂(2)连接。
2.根据权利要求1所述的数学教学板，其特征在于，副尺(4)的一端设有量角器(6)。
3.根据权利要求1所述的数学教学板，其特征在于，在黑板(1)下边缘设有向外凸出的槽(7)。
CN 201220749092 2012-12-15 2012-12-15 一种数学教学板 Expired - Fee Related CN202986514U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220749092 CN202986514U (zh) 2012-12-15 2012-12-15 一种数学教学板

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220749092 CN202986514U (zh) 2012-12-15 2012-12-15 一种数学教学板

## Publications (1)

Publication Number Publication Date
CN202986514U true CN202986514U (zh) 2013-06-12

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220749092 Expired - Fee Related CN202986514U (zh) 2012-12-15 2012-12-15 一种数学教学板

## Country Status (1)

CN (1) CN202986514U (zh)

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107901669A (zh) * 2017-11-10 2018-04-13 杜鑫 一种可自动清洁的教学黑板

## Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107901669A (zh) * 2017-11-10 2018-04-13 杜鑫 一种可自动清洁的教学黑板

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## Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20131215