CN201102401Y - New pencil - Google Patents

Abstract

A novel pencil consists of a penholder, a screw ring, a back cap, a pencil refill and an eraser. The shape of the penholder consists of a bradawl section A, an auger section B and a columnar section C. The cross section of the bradawl section A is axially divided into three equal portions uniformly which are closed state, and the axial center thereof is a small-diameter through hole. The outer taper of the auger section B is provided with outer taper screw threads, the inside of which is a filler-shaped cavity. The axial center of the columnar section C is a large-diameter through hole. The tail part of the large-diameter through hole is provided with inner screw threads which are matched with the back cap. The whole axial center of the penholder is communicated shape. The screw ring consists of a bradawl ring section D and an auger ring section E. the inner diameter of the auger ring section E is provided with inner taper screw threads which are matched with the outer taper screw threads of the penholder. The back cap and the columnar section C of the penholder are screw thread matching state. The eraser is arranged inside the blind hole cavity of the end surface of the back cap. The pencil refill is nipped inside the small-diameter through hole of the bradawl taper section A. When the pencil refill is required to be adjusted for extending or hiding, people can just adjust the tightness between the outer taper screw threads and the inner taper screw threads.

Description

A kind of pencil

Affiliated technical field

The utility model relates to a kind of pencil.

Background technology

As everyone knows, why propelling pencil is subjected to people's favor, is because it has not only brought some convenient to people, and the application of having saved timber.In line with not only without timber, but also make things convenient for everybody principle, the present invention releases a kind of pencil that a kind of structure is more simple, price is more cheap.Find no the invention of identical structure by retrieval.

Summary of the invention

The objective of the invention is: release a kind of cheap, use easily pencil without timber.

A kind of pencil, it is by penholder, is rotated with ring, bonnet, pencil-lead, rubber and constitutes; Penholder as shown in Figure 2, its profile is made of small cone section A, large cone section B and cylindrical section C successively, the profile of small cone section A and large cone section B is the truncate normal cone body of different taperings, the cross section of small cone section A is by the axial three equal parts (as shown in Figure 3) that are divided into, when these three equal parts are closed form, but its axle center is the path through hole of a lead gripper pen core, the male-tapered of large cone section B is provided with the male-tapered screw thread, it in it funnelform cavity, the axle center of cylindrical section C is a big footpath through hole, afterbody at big footpath through hole is provided with internal thread, and its whole axle center of penholder is UNICOM's shape;

The ring that is rotated with as shown in Figure 4 is made of conelet ring section D, large conic ring section E, the tapering of this conelet ring section D and its internal diameter of large conic ring section E coincide with the profile taper of small cone section A, large cone section B respectively, and is provided with inside tapered thread with its male-tapered threads engaged of large cone section B of penholder at the internal diameter of large conic ring section E;

Its outer circumference surface of bonnet as shown in Figure 5 is provided with the external screw thread that matches with the internal thread of its big footpath through-hole tail of penholder, and the end face of bonnet is provided with one and is the down blind cavity of concavity;

Pencil-lead is clamped in the path through hole in its small cone section of penholder A axle center; Rubber is embedded in the end face of its inner concavity of bonnet.

Beneficial effect of the present invention: release convenient, the cheap a kind of pencil of a kind of application to people.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 partly cuts open schematic diagram for the utility model structure.

Fig. 2 partly cuts open schematic diagram for the penholder structure.

Fig. 3 is that the F-F of Fig. 1 is to view.

Fig. 4 be rotated with ring structure partly cut open schematic diagram.

Fig. 5 partly cuts open schematic diagram for rear cover structure.

Among each figure, 1, penholder, 2, small cone section A, 3, the path through hole, 4, large cone section B, 5, the male-tapered screw thread, 6, cavity, 7, cylindrical section C, 8, big footpath through hole, 9, internal thread, 10, be rotated with ring, 11, conelet ring section D, 12, large conic ring section E, 13, inside tapered thread, 14, bonnet, 15, external screw thread, 16, blind cavity, 17, pencil-lead, 18, rubber.

The specific embodiment

The utility model as shown in Figure 1 by penholder (1), be rotated with ring (10), bonnet (14), pencil-lead (17), rubber (18) and constitute; Its penholder (1) as shown in Figure 2, be rotated with ring (10) as shown in Figure 4, bonnet (14) as shown in Figure 5, and when the male-tapered screw thread (5) of penholder (1) and the inside tapered thread (13) that is rotated with ring (10) are when screwing shape, in the path through hole (3) that is clamped in its axle center of small cone section A (2) that pencil-lead (17) is fastened, pencil then can be used to write.If the writing of writing is wrong, people can make amendment with the rubber (18) of being set in its blind cavity of bonnet (14) (16).

When needs are regulated pencil-leads (17) overhanging or built-in, people if the male-tapered screw thread (5) of turn penholder (1) and the inside tapered thread (13) that is rotated with ring (10) between it elasticity and the direction of establishing of pencil changed thereupon.

Because its interior big footpath through hole (8) of penholder (1) constitutes a bigger cavity with bonnet (14), so can deposit many pencil-leads (17) at this place.

Claims (1)

1, a kind of pencil is characterized in that: it is by penholder (1), is rotated with ring (10), bonnet (14), pencil-lead (17), rubber (18) formation; The profile of penholder (1) is successively by small cone section A (2), large cone section B (4) and cylindrical section C (7) constitute, the profile of small cone section A and large cone section B is the truncate normal cone body of different taperings, the cross section of small cone section A (2) is by the axial three equal parts that are divided into, when these three equal parts are closed form, its axle center is a little via through holes (3), the male-tapered of large cone section B (4) is provided with male-tapered screw thread (5), it in it funnelform cavity (6), the axle center of cylindrical section C (7) is big via through holes (8), afterbody at big via through holes (8) is provided with internal thread (9), and its whole axle center of penholder (1) is UNICOM's shape; Being rotated with ring (10) is made of conelet ring section D (11) and large conic ring section E (12), the tapering of this conelet ring section D (11) and its internal diameter of large conic ring section E (12) coincide with the profile taper of small cone section A (2), large cone section B (4) respectively, and is provided with the inside tapered thread (13) that matches with the male-tapered screw thread (5) of penholder (1) at the internal diameter of large conic ring section E (12); Its outer circumference surface of bonnet (14) is provided with the external screw thread (15) that matches with its internal thread of penholder (1) (9), and is provided with one at its end face and is the down blind cavity (16) of concavity.

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