CN204249649U - Novel retractable compasses - Google Patents

Novel retractable compasses Download PDF

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Publication number
CN204249649U
CN204249649U CN201420722060.XU CN201420722060U CN204249649U CN 204249649 U CN204249649 U CN 204249649U CN 201420722060 U CN201420722060 U CN 201420722060U CN 204249649 U CN204249649 U CN 204249649U
Authority
CN
China
Prior art keywords
compasses
expansion link
novel retractable
head
punch block
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
CN201420722060.XU
Other languages
Chinese (zh)
Inventor
郑国民
杨忠诚
蒋平安
陈刘衡
苏鑫德
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.)
Sichuan cangxi middle school
Original Assignee
Sichuan cangxi middle school
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 Sichuan cangxi middle school filed Critical Sichuan cangxi middle school
Priority to CN201420722060.XU priority Critical patent/CN204249649U/en
Application granted granted Critical
Publication of CN204249649U publication Critical patent/CN204249649U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of novel retractable compasses, comprise compasses head (1), punch block (2), expansion link (3) and nib (4), it is characterized in that: described expansion link (3) is articulated with compasses head (1), punch block (2) and compasses head (1) fix, and expansion link (3) is connected with nib (4).By above improvement, this reality is novel provides a kind of simple and easy novel retractable compasses, solves the defect that common compasses can not change compass leg length, easy to operate.

Description

Novel retractable compasses
Technical field
The utility model belongs to drawing instrument, is specifically a kind of novel retractable compasses.
Background technology
Compasses are a kind of common drawing instruments, no matter all use in architectural drawing or mechanical drawing extensively.In drawing course, compasses are all that two leg support length have all been fixed, but in the process of graphing, need circle or the circular arc of drawing different size, so will use the long compasses of different leg, the quantity that instrument carries will be more, more inconvenient.
For solving the problem, now provided with easy to use, producing simple, the novel retractable compasses at the bottom of cost.
Utility model content
The purpose of this utility model is to provide a kind of novel retractable compasses at this, can not change the long defect of compass leg as required at any time to solve.
For achieving the above object, the utility model comprises compasses head, punch block and expansion link.Described compasses head includes shell, handle and hold-down screw; Shell both sides have through hole, and a side through hole is provided with internal thread.Have the aperture containing internal thread above shell, be connected with the external screw thread being opened in handle, at its lower end.Punch block lower end is provided with needle point, and upper end and shell fix.Expansion link lower end is provided with nib, and upper end is provided with aperture and compasses are hinged, is fixed by hold-down screw.
The utility model advantage is that structure is simple, and telescopic leg can meet the drafting of different occasion to circle, and easy to use, easy to carry, easily manufacture, cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model overall schematic.
Fig. 2 is the cross section of expansion link.
In figure: 1, compasses head; 2, punch block; 3, expansion link; 4, nib; 5, needle point.
Detailed description of the invention
Be described in detail below in conjunction with accompanying drawing 1 pair of the utility model, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, the utility model provides a kind of novel retractable compasses at this, can be implemented in the following manner: comprise compasses head 1 from overall structure, punch block 2 and expansion bracket 3.Described compasses head 1 comprises shell 1b, handle 1a and hold-down screw 1c, and the aperture be provided with above shell 1b containing internal thread is connected with the external screw thread of handle 1a lower end; Punch block 2 upper end is fixed on shell 1c, and punch block 2 lower end is connected with needle point 5; Expansion link 3 upper end is provided with aperture and shell 1b is hinged is fixed by hold-down screw 1c, and lower end is connected with nib 4.Vertical at desktop with needle point 5 during use the utility model, expansion link 3 selects appropriate length to paint.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (3)

1. novel retractable compasses, comprise compasses head (1), punch block (2), with expansion link (3), it is characterized in that: described compasses head (1) includes handle (1a), shell (1b) and hold-down screw (1c), handle (1a) lower end is provided with external screw thread, shell (1b) upper end has the aperture containing internal thread, and two ends, side are provided with through hole, one end through hole band internal thread.
2. novel retractable compasses according to claim 1, is characterized in that: described punch block (2) lower end is provided with needle point (5); Punch block (2) upper end and compasses head (1) fix.
3. novel retractable compasses according to claim 1, is characterized in that: described expansion link (3) lower end is provided with nib (4), and expansion link (3) upper end is provided with hole, for being connected with compasses head (1).
CN201420722060.XU 2014-11-27 2014-11-27 Novel retractable compasses Expired - Fee Related CN204249649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420722060.XU CN204249649U (en) 2014-11-27 2014-11-27 Novel retractable compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420722060.XU CN204249649U (en) 2014-11-27 2014-11-27 Novel retractable compasses

Publications (1)

Publication Number Publication Date
CN204249649U true CN204249649U (en) 2015-04-08

Family

ID=52953990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420722060.XU Expired - Fee Related CN204249649U (en) 2014-11-27 2014-11-27 Novel retractable compasses

Country Status (1)

Country Link
CN (1) CN204249649U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105459692A (en) * 2015-12-11 2016-04-06 苏州市启扬商贸有限公司 Stretchable compasses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105459692A (en) * 2015-12-11 2016-04-06 苏州市启扬商贸有限公司 Stretchable compasses

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Legal Events

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

Granted publication date: 20150408

Termination date: 20151127