CN2282988Y - Propelling hard-tipped writing instrument - Google Patents

Abstract

The utility model relates to a propelling hard-tipped writing instrument. The utility model is mainly a propelling hard-tipped writing instrument whose cartridge is a chalk. The utility model is provided with an outer housing 1 and a key 2 which controls the cartridge and is sheathed in the outer housing, wherein, a key head 13 is arranged on the key and extends out from the pipe wall of the outer housing. A tong pipe 3 for grabbing the cartridge is sheathed in the key, and the right section of the tong pipe is sheathed with a telescopic spring 4 and a backing ring 5. The tail end of the tong pipe is provided with a propelling key 7. The utility model can mainly prevent chalks from polluting human bodies, books and objects, and can fully utilize the cartridge which is not easy to break, and the rest portion of the cartridge is less than 5 mm.

Description

A kind of Propelling hard-tipped writing instrument

The utility model belongs to a kind of and is used to write, the hard-tipped pen of drawing etc.

The use of chalk, crayon etc. has exceeded a century, because they some use occasion be difficult to replaced, and low price, so still located to use widely so far by school, factory, office etc., but the shortcoming that they have the people all to know: one, especially the teacher writes picture with the direct clamping chalk of finger on blackboard, points at first contaminated, secondary pollution books more subsequently, clothing or other object, very unhygienic, even influence health; Two, inconvenience is carried, nobody be ready with chalk as ball pen, fountain pen directly pack in the own pocket to the classroom, scene uses such as workshop or building site; Three, because the intensity of chalk is lower, the position owing to fingerhold when handing chalk is higher, the chalk frangibility, and loss is bigger.

The purpose of this utility model provides a kind of adjustable Propelling hard-tipped writing instrument, makes it make pen core with chalk etc., and finger catches a body directly not contact chalk during use.It has the pollution of the finger of release and reaches advantages such as utilizing remaining pen core greatly.

The utility model is to realize with following technical proposal: it has the button 2 that is set with the control pen core in a tube-like envelope 1, the shell, wherein has by key head 13 and from the shell tube wall on the button and stretch out, in button 2, be set with the pincers pipe 3 of grabbing pen core, pincers pipe back segment is equipped with coil tension spring 4 and gasket ring 5, is provided with at the tail end that clamps pipe and advances key 7.

This Propelling hard-tipped writing instrument, simple in structure, suitable, can regulate as required during use, its advantage is: be pen core with chalk, crayon one,, make the user point not directly clamping chalk etc., so the secondary pollution of article such as the not contaminated and caused books of finger, clothing; Two, the user can carry, and in ball pen, the careless pocket of packing into of fountain pen, is easy to use; Three, more prior is to make full use of pen core, and last pen core core print can be reached in the 5mm, and pen core is frangibility not, so the diameter of pen core can be contracted to 7.5～ 8mm from the 10mm of common chalk, it is thin and even to write lines.

In conjunction with following accompanying drawing the utility model overall structure and the process of installing and using thereof are done to describe in detail:

Fig. 1 partly cuts open front view for the Propelling hard-tipped writing instrument overall structure.

Fig. 2 is that Figure 1A-A is to profile.

Fig. 3 is that Figure 1B-B is to cutaway view.

Fig. 4 partly cuts open front view for the pincers pipe.

Fig. 5 is that Fig. 4 I-I is to view.

Fig. 6 is Fig. 4 vertical view.

Fig. 7 is the button front view.

Fig. 8 is Fig. 7 vertical view.

Shown in Fig. 1～3: Propelling hard-tipped writing instrument has the button 2 that is set with the control pen core in a tube-like envelope 1, the shell, wherein has on the button two to stretch out by key head 13 and from the shell tube wall, in button 2, be set with the pincers pipe 3 of grabbing pen core, pincers pipe back segment is set with coil tension spring 4 and gasket ring 5, pincers pipe afterbody is provided with and advances key 7, in advancing key 7, be provided with pin 6, make it pass through pin 6 and fixedly connected with pincers pipe afterbody.Shown in Fig. 4～6, there is a notch 12 the pipe shaft middle part of the pincers pipe 3 in the Propelling hard-tipped writing instrument, will clamp pipe be divided into about two sections pipes, the end of left side section pipe is the snakehead shape, left side section pipe shaft axially has an open seam 9, and left side section pipe is divided into two parts up and down, has a strip hole 10 on every part tube wall; The afterbody of the right side section pipe is provided with and connects the notch 11 that advances key, articulates by it and propelling key 7 interior set pins 6.Shown in Fig. 7～8: the button 2 in the Propelling hard-tipped writing instrument has a sleeve pipe 16, two parallel elastic rods 14 is arranged in the one end, and the elastic rod end is respectively equipped with by key head 13.This Propelling hard-tipped writing instrument all the other other parts (not comprising spring) except that pen core are working of plastics, respectively by the mould single injection-molded.

During installation referring to Fig. 1, button 2 at first is contained in the shell 1, make in two circular holes borrowing the elasticity of button elastic rod to spring into shell 1 by key head and stretch out, will clamp pipe 3 subsequently and pass button 2 and pack in the shell 1, make the elastic rod 14 of button 2 embed pincers and manage in 3 the strip hole 10, press shock mount 4 then, gasket ring 5 and propelling key 7 are when dress advances key 7, referring to Fig. 4,5, inner pin 6 is inserted along the notches 11 of pincers pipe 3 afterbodys reverse an angle then, pin is articulated on the groove hook in the notch 11.

During use, promote the propelling key 7 of an afterbody, the compression spring, then pincers pipe 3 and shell 1 relative displacement, the pincers mouth of pipe unclamps, and can insert chalk 8 this moment, unclamp and advance key 7, pincers pipe 3 is rebounded, and the tapered slope of the snakehead shape end of pincers pipe 3 contacts with the interior inclined-plane of shell 1 end, and then the chalk core is clamped by jaw.In the time will regulating extension elongation, can promote to advance key 7, pin two again by key head 13, make its strip hole clamp chalk by pincers pipe 3, unclamp and advance key 7, chalk promptly stretches out, but extension elongation regulated at will wherein.

Claims (3)

1, a kind of Propelling hard-tipped writing instrument, it is characterized in that it has the button (2) that is set with the control pen core in a tube-like envelope (1), the shell, wherein has by key head (13) and from the shell tube wall on the button and stretch out, in button (2), be set with the pincers pipe (3) of grabbing pen core, pincers pipe back segment is set with coil tension spring (4) and gasket ring (5), is provided with at the tail end that clamps pipe and advances key (7).

2, a kind of Propelling hard-tipped writing instrument according to claim 1 is characterized in that described button (2) has a sleeve pipe (15), has two parallel elastic rods (14), elastic rod end to be provided with by key head (13) in the one end and constitutes.

3, a kind of Propelling hard-tipped writing instrument according to claim 1, it is characterized in that described pincers pipe (3), have a notch (12) that it is divided into about two sections, the end of left side section pipe is the snakehead shape, there is open seam (9) to manage and divides upper and lower two parts, be provided with strip hole (10) at every part tube wall; Right section pipe afterbody is provided with and connects the notch (11) that advances key.

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