CN2339413Y

CN2339413Y - Sharpening-free pencil lead and propelling mechanism

Info

Publication number: CN2339413Y
Application number: CN 98223374
Authority: CN
Inventors: 洪蛎
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-03
Filing date: 1998-03-03
Publication date: 1999-09-22
Anticipated expiration: 2008-03-03

Abstract

The utility model relates to a sharpening-free pencil core and propelling mechanism, mainly comprising an outer pencil pipe, an inner pencil pipe, a clamping jaw and a double action propelling mechanism, wherein, the inner pencil pipe is a hollow pipe with different outside diameters. The front end of the inner pencil pipe is screwed with the clamping jaw and the back end of the inner pencil pipe is connected with the double action propelling mechanism. The double action propelling mechanism is composed of a movable pencil pipe, a propelling-contact pen cap, a spring and a first and a second pivoting pipes, wherein, the first pivoting pipe is screwed with the top end of the outer pencil pipe. An upper end is supported to the spring which is sheathed with the outer part of the inner pencil pipe. The outer part of the spring is sheathed with the movable pencil pipe. The inner diameter of the movable pencil pipe is bigger than that of the outer pencil pipe. The movable pencil pipe and the propelling-contact pen cap are connected by the second pivoting pipe. The utility model has the advantages of flexible propelling action, convenient operation and higher whole use quality.

Description

A kind of extensible pencil pen core and delivery device

The utility model belongs to stationery, is specifically related to a kind of activity (exempting to cut) pencil.

As everyone knows, the invention of extensible pencil is that generation was convenient greatly when common people were write, its at first by the designer develop make infeed use, so far have the history of decades, owing to not only can exempt the trouble that sharpens a pencil, more because of cheap for manufacturing cost, so at present still widely people prefer to use, and some manufacturers do effort with locating heart accumulation especially aspect structural design, in the hope of obtaining a kind of extensible pencil more convenient, that cost is cheaper that uses, use the raising occupation rate of market.Existing various extensible pencil generally all is to push cap for brush folder and reach the control pen core and be convenient to take out replacing against pushing, gives people's the way of propelling and external form structure thereof for a long time and do not see that yet big breakthrough is arranged, and so the style that seems is old, the shortage requirements of the times.

The utility model is intended to existing extensible pencil is improved, and proposes the new construction of a kind of extensible pencil pen core and delivery device, makes it the whole delivery device for ease of action, improves the total quality that uses simultaneously.

Realize the utility model of above-mentioned purpose, the outer pen tube, an inner pen tube, a jaw and the double action delivery device that mainly comprise general extensible pencil and had, but the utility model has been made new design to inner pen tube, double action delivery device etc., specifically: the inner pen tube in the utility model is the hollow tube with various outer diameter, system is installed in the outer pen tube, its front end jaw that is spirally connected, the rear end then connects the double action delivery device; Double action delivery device system is made of the movable shaft of a writing brush, the pushing and pressing cap for brush, spring and first and second pivot joint pipe institute, wherein, first articulates pipe is bolted in the outer pen tube top, its upper end contact spring, spring is placed in the inner pen tube outside, the outside multiple sheathed movable shaft of a writing brush of spring, movable shaft of a writing brush internal diameter is big than outer pen tube, and can move up and down in the outer pen tube external freedom; The movable shaft of a writing brush articulates pipe with pushing and pressing cap for brush mat second and is connected.

Therefore advantage such as it is flexible to the utlity model has pushing action, easy to use really can improve the total quality that extensible pencil uses.

Description of drawings:

Fig. 1 is a decomposing section of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is a combination section of the present utility model.

Fig. 4 is a combination appearance figure of the present utility model.

Each label is represented in the above-mentioned accompanying drawing:

The 1-outer pen tube,

The 2-inner pen tube, the 21-external screw thread, 22-epimere portion, the 23-external screw thread,

The 3-jaw member, the 31-cracked prong claw, the 32-internal thread,

4-double action delivery device,

The 5-moving casing, the 51-internal thread,

6-pushes against the cap for brush, the 61-internal thread, and the 62-hollow sleeve,

The 7-spring,

8-first articulates pipe, the 81-external screw thread, and the 82-bulge loop,

9-second articulates pipe, 90-internal thread, 91-external screw thread, 92-pen clip.

A preferred embodiment of the present utility model as shown in drawings.Below in conjunction with drawings and Examples the utility model is elaborated.

As shown in Figure 1, this kind extensible pencil of the present utility model mainly is made of an outer pen tube 1, an inner pen tube 2, a jaw member 3 and a double action delivery device 4, wherein, outer pen tube 1 is integrated hollow tube, can hold other each member, and its upper end is formed with internal thread 11; Inner pen tube 2 is inserted in the outer pen tube 1, and it is long than outer pen tube 1, is hollow tube also, but has different external diameters that its front end is formed with external screw thread 21; Jaw member 3 is one not wait the tubular bodies of caliber, is cut into multi-disc cracked prong claw 31 after its front end is expanded, and its rear end is provided with the internal thread 32 with external screw thread 21 bolts of inner pen tube 2.

Double action delivery device 4 is to be made of the movable shaft of a writing brush 5, the pushing and pressing cap for brush 6, spring 7 and first and second 8,9 of pivot joint pipe, wherein, first articulate pipe 8 lower ends form external screw thread 81 just with internal thread 11 bolts of outer pen tube, its top outwards forms bulge loop 82, the diameter of bulge loop 82 is identical with the top caliber of outer pen tube 1, and making wins articulates the top that promptly can be positioned on outer pen tube after pipe 8 and outer pen tube 1 are spirally connected; Thus, after inner pen tube 2 was upwards stretched into by outer pen tube 1 bottom, the epimere portion 22 of inner pen tube 2 can articulate by first and manage 8, promptly protrudes from outer pen tube 1.Epimere portion 22 peripheries that inner pen tube 2 protrudes are coated with spring 7, spring 7 lower end contacts articulate on the pipe 8 first, spring 7 outside multiple sheathed moving casings 5, it is big that the internal diameter of moving casing 5 articulates the external diameter of bulge loop 82 diameters of pipe 8 and outer pen tube 1 than first, and can be freely articulate pipe 8 and outer pen tube 1 outside move up and down first.See by figure, moving casing 5 upper ends are provided with internal thread 51, so that be spirally connected with the second external screw thread 91 hypomere portions that articulate pipe 9, second articulates that pipe 9 inside are provided with internal thread 90 so that be spirally connected with the epimere external screw thread 23 of inner pen tube, second articulates the internal thread 61 that pipe external screw thread 91 epimere portions then are screw-coupled to the pushing and pressing cap for brush 6, there is a hollow sleeve 62 the pushing and pressing cap for brush 6 inside, the internal diameter of hollow sleeve 62 is identical with the epimere portion internal diameter of inner pen tube 2, to make things convenient for pen core 63 after hollow sleeve 62 falls into successively, by inner pen tube 2 to jaw member 3 inside, and articulating second also can a sheathed pen clip 92 on the pipe 9.

Shown in Fig. 2,3, this kind extensible pencil pen core of the present utility model and delivery device, during use, when the user pushes the pushing and pressing cap for brush 6, can promote the second pivot joint pipe 9, pen clip 92, spring 7, moving casing 5 and inner pen tube 2 simultaneously moves down simultaneously, and then force jaw member 3 to be stretched out downwards, so that pen core 63 is convenient to fall replacing.By it, can carry out various appearance and modeling designs again, to reach the requirement of modern aesthetic viewpoint.

Claims

1, a kind of extensible pencil pen core and delivery device mainly comprise an outer pen tube, an inner pen tube, a jaw and a double action delivery device, it is characterized in that: inner pen tube is the hollow tube with various outer diameter, system is installed in the outer pen tube, its front end jaw that is spirally connected, and the rear end then connects the double action delivery device; Double action delivery device system is made of the movable shaft of a writing brush, the pushing and pressing cap for brush, spring and first and second pivot joint pipe institute, wherein, first articulates pipe is bolted in the outer pen tube top, its upper end contact spring, spring is placed in the inner pen tube outside, the outside multiple sheathed movable shaft of a writing brush of spring, movable shaft of a writing brush internal diameter is big than outer pen tube, and can move up and down in the outer pen tube external freedom; The movable shaft of a writing brush articulates pipe with pushing and pressing cap for brush mat second and is connected.