CN206141178U

CN206141178U - Safety compass

Info

Publication number: CN206141178U
Application number: CN201620838723.3U
Authority: CN
Inventors: 周北林
Original assignee: Hubei Guohao Cultural And Creative Development Co Ltd
Current assignee: Hubei Guohao Cultural And Creative Development Co Ltd
Priority date: 2016-08-05
Filing date: 2016-08-05
Publication date: 2017-05-03
Anticipated expiration: 2026-08-05

Abstract

The utility model discloses a safety compass, including handle, pivot, steel needle landing leg and lead core landing leg, steel needle landing leg lower part is the cylinder, the cylinder is hollow structure, the inside needle bar that has inlayed of cylinder, the needle bar end is fixed with the steel needle, the needle bar end has the spring at the outside cover of steel needle, the cylinder is terminal for the binding off structure, through the chimeric structure combination between needle bar and the cylinder, be equipped with bolt hole, spout and narrowing hole on the cylinder section of thick bamboo wall respectively, be equipped with the bar groove of answering with cylinder bolt pore pair on the needle bar, be equipped with the branch corresponding with the cylinder spout on the needle bar, the terminal lateral wall of branch is equipped with protrudingly and the spout interlock, be equipped with on the needle bar with the corresponding shell fragment in cylinder narrowing hole, possess outside tension. The steel needle of compasses can stretch out the cylinder when using, make compasses normal use, when not using, can contract an inserting needle section of thick bamboo with the steel needle to reduce because of producing harm to the human body because of carelessness.

Description

A kind of safety compasses

Technical field

This utility model is related to a kind of safety compasses, more particularly to a kind of contractile safety compasses of draw point.

Background technology

The requirement more and more higher of safety of the country in terms of children for learning articles for use at present, compasses are used as a kind of study Product, because its end is provided with draw point, are easy to hurt child, especially when not using, may encounter because of ignorance Draw point, is that this compasses for having had collapsible draw point at present is listed, and Patents are also more, but specifically how to realize the receipts of draw point Contract and stretch out concrete not enough, such as the Chinese utility model patent of Application No. 201210463913.8《A kind of safety compasses》, Although it introduces a kind of contractile compasses, it describe only when pressing safety switch, and draw point stretches out, when not pressing, safety Pin up shrinks, but specifically how to shrink after pressing, and often introduces, also without related technical clarification.

The content of the invention

The purpose of this utility model is to provide a kind of draw point contractile safety compasses, and it can effectively reduce compasses steel The occurrence of pin is hurted sb.'s feelings.

To achieve these goals, the technical solution of the utility model exists：A kind of safety compasses, including handle, rotating shaft, steel Pin supporting leg and lead for retractable pencil supporting leg, the draw point supporting leg bottom is syringe, and the syringe is hollow structure, and inside the syringe pin is embedded with Bar, the shank end is fixed with draw point, and the shank end is cased with spring outside draw point, and the syringe end is the knot that closes up Structure, is combined between shank and syringe by embedded structure.

Preferably, pin hole, chute and narrowing hole are respectively equipped with the syringe barrel, the shank is provided with and syringe The corresponding bar-shaped trough of pin hole；The shank is provided with pole corresponding with syringe chute, and the pole end side wall is provided with convex Rise and be engaged with chute；The shank is provided with the shell fragment corresponding with syringe narrowing hole, possesses outside tension force.

Preferably, at the top of the shell fragment on the shank outwardly.

Preferably, the shank bottom is provided with spring arch clasp, external diameter of its external diameter more than spring.

Preferably, the pin hole is carried out spacing through bar-shaped trough by latch to shank.

Compared with prior art, the beneficial effects of the utility model are：The draw point of the compasses can be stretched when in use Go out syringe, compasses is normally used, when not in use, draw point can be collapsible into syringe, so as to reduce because of imprudence to people Body produces harm.

Description of the drawings

Fig. 1：Shank structure diagram described in the utility model.

Fig. 2：Shank described in the utility model and spring housing and figure.

Fig. 3：Compasses draw point leg structure sketch described in the utility model.

In figure：1 draw point supporting leg, 2 syringes, 3 shanks, 4 springs, 5 latches, 21 chutes, 22 narrowing holes, 31 bar-shaped troughs, 32 Bar, 33 shell fragments, 34 spring arch clasps, 35 draw points.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage seem to become apparent from understanding, below in conjunction with accompanying drawing and Specific embodiment, is described in further detail to this utility model.It should be appreciated that described embodiment herein is only It is in order to explain this utility model, rather than for limiting protection domain of the present utility model.

A kind of safety compasses, including handle, rotating shaft, draw point supporting leg and lead for retractable pencil supporting leg, the draw point supporting leg bottom is syringe, The syringe is hollow structure, and shank is embedded with inside the syringe, and the shank end is fixed with draw point, and the shank end exists Spring is cased with outside draw point, the syringe end is closing-in structure, is combined by embedded structure between shank and syringe.

Pin hole, chute and narrowing hole are respectively equipped with the syringe barrel, the shank is provided with and syringe pin hole Corresponding bar-shaped trough；The shank is provided with pole corresponding with syringe chute, and the pole end side wall is provided with raised and sliding Groove is engaged；The shank is provided with the shell fragment corresponding with syringe narrowing hole, possesses outside tension force.

Shell fragment top on the shank is outwardly.

The shank bottom is provided with spring arch clasp, external diameter of its external diameter more than spring.

The pin hole is carried out spacing through bar-shaped trough by latch to shank.

The using method of compasses described in the present embodiment is：When needing draw point to stretch out, downwards by shank, now shank it is overall to Move down, when shell fragment top flushes with narrowing hole top, shell fragment is ejected, and the raised bottom on pole is neat with syringe chute bottom It is flat, latch and bar-shaped trough top contact, now shank be fixed with syringe under the action of the spring, compasses can normally make With.

When needing to shrink draw point, shell fragment is pressed to the inside of syringe at narrowing hole, when shell fragment top and narrowing hole top point When opening, under the action of the spring, shank jack-up upwards, draw point is packed up.

In this process, shank and syringe are carried out by pole and latch dual chimeric, prevents the two because outside former Because separating, shank is caused to hurt sb.'s feelings.

The above specific embodiment of the present utility model, does not constitute the restriction to this utility model protection domain, Any various other corresponding change and deformation according to done by technology design of the present utility model, should be included in this practicality In new scope of the claims.

Claims

1. a kind of safety compasses, including handle, rotating shaft, draw point supporting leg and lead for retractable pencil supporting leg, the draw point supporting leg bottom be syringe, institute Syringe is stated for hollow structure, it is characterised in that shank is embedded with inside the syringe, the shank end is fixed with draw point, described Shank end is cased with spring outside draw point, and the syringe end is closing-in structure, and embedded structure is passed through between shank and syringe Combination.

2. safety compasses according to claim 1, it is characterised in that be respectively equipped with pin hole, cunning on the syringe barrel Groove and narrowing hole, the shank is provided with bar-shaped trough corresponding with syringe pin hole；The shank is provided with and syringe chute phase The pole answered, the pole end side wall is provided with projection and is engaged with chute；The shank is provided with corresponding with syringe narrowing hole Shell fragment, possess outside tension force.

3. safety compasses according to claim 2, it is characterised in that the shell fragment top on the shank is outwardly.

4. safety compasses according to claim 2, it is characterised in that the shank bottom is provided with spring arch clasp, its external diameter More than the external diameter of spring.

5. safety compasses according to claim 2, it is characterised in that the pin hole is by latch through bar-shaped trough to pin Bar carries out spacing.