CN201659773U

CN201659773U - Pen

Info

Publication number: CN201659773U
Application number: CN2010201334651U
Authority: CN
Inventors: 焦方宇
Original assignee: 焦方宇
Priority date: 2010-03-17
Filing date: 2010-03-17
Publication date: 2010-12-01
Anticipated expiration: 2020-03-17

Abstract

The utility model relates to school things, in particular to a pen. The pen comprises a penholder, a pen point and a pen core, wherein, the penholder is connected with the pen point through screw threads; a rotating body is movably clamped at the back part of the penholder; a screw rod is connected with the rotating body through screw threads; the lower end of the screw rod extends into a hollow cavity in the penholder; a top plate is movably sleeved at the front end of the screw rod; two projections are respectively formed at the two ends of the top plate; and the two projections are respectively clamped in two sliding slots on the inner wall of the penholder. The pen with a simple structure can be fit with pen cores with different lengths, thereby facilitating core changing operation and ensuring normal use.

Description

A kind of pen

Technical field

The utility model relates to a kind of schooling apparatus, especially a kind of pen.

Background technology

At present, in daily learning life, pen is the requisite schooling apparatus of people.Along with the use of carbon pen, ball pen etc. more and more widely, the problem in a lot of uses has also appearred.For example; because the pattern of the pen that each enterprise produces has nothing in common with each other; caused the length of the interior pen core of pen to have nothing in common with each other; when people need refill; usually can run into the length violation of pen core and pen, can't normally use, often will will cut short for core or mode such as Xiang Bizhong plug paper; reach the cooperation requirement of pen core and pen, bring a lot of inconvenience for people's normal change-fountain pen core.

Summary of the invention

The utility model provides a kind of pen, and it is simple in structure, can adapt to the pen core of different length, makes that to change core convenient to operation, has guaranteed people's normal use, has solved problems of the prior art.

The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: it comprises penholder, nib and pen core, penholder is threaded with nib, active card is equipped with a rotary body at the rear portion of penholder, a screw rod is threaded on rotary body, the screw rod lower end is stretched in the interior cavity of penholder, front end at screw rod is movably installed with a top board, and the two ends of top board are respectively equipped with a projection, and two projections snap in respectively in two chutes on the penholder inwall.

Rear portion at the outside of screw rod rotary body is provided with a head protector.

The utility model is simple in structure, and is easy to operate, and by rotating rotary body, the top board that drives the screw rod lower end is flexible, makes this pen core that can adapt to different length, greatly facilitates the operation that people change core, has guaranteed people's normal use.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 for the A-A among Fig. 1 to analysing and observe the structure for amplifying schematic diagram.

Fig. 3 is the B portion structure for amplifying schematic diagram among Fig. 1.

Among the figure, 1, penholder; 2, nib; 3, pen core; 4, rotary body; 5, screw rod; 6, cavity; 7, top board; 8, projection; 9, chute; 10, head protector.

The specific embodiment:

For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.

Shown in Fig. 1～3, the utility model comprises penholder 1, nib 2 and pen core 3, penholder 1 is threaded with nib 2, in the rear portion of penholder 1 active card one rotary body 4 is housed, the screw rod 5 that is threaded on rotary body 4, screw rod 5 lower ends stretch in the cavity 6 in the penholder 1, are movably installed with a top board 7 at the front end of screw rod 5, the two ends of top board 7 are respectively equipped with a projection 8, two projections 8 and snap in respectively in two chutes 9 on penholder 1 inwall.Top board 7 two ends snap in projection 8 in the chute 9 can guarantee that top board 7 does rectilinear motion up and down under the drive of screw rod 5.

Be provided with a head protector 10 at the rear portion of the outside of screw rod 5 rotary body 4.

During use, screw off nib 2, the pen core 3 that uses up is taken out, insert a new pen core 3, screw nib 2.Rotate rotary body 4, the top board 7 that drives screw rod 5 lower ends is done stretching motion up and down, makes top board 7 hold out against pen core 3, and at this moment, people are that available pen is normally write.The utility model pen can adapt to the pen core 3 of different length, greatly facilitates the operation that people change core, has guaranteed people's normal use.

The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.

Claims

1. pen, comprise penholder, nib and pen core, penholder is threaded with nib, it is characterized in that: active card is equipped with a rotary body at the rear portion of penholder, the screw rod that is threaded on rotary body, screw rod lower end stretch in the cavity in the penholder, are movably installed with a top board at the front end of screw rod, the two ends of top board are respectively equipped with a projection, and two projections snap in respectively in two chutes on the penholder inwall.

2. a kind of pen according to claim 1, it is characterized in that: the rear portion at the outside of screw rod rotary body is provided with a head protector.