CN201728936U

CN201728936U - Improved ballpoint pen

Info

Publication number: CN201728936U
Application number: CN2010202521208U
Authority: CN
Inventors: 吴北南
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-29
Filing date: 2010-06-29
Publication date: 2011-02-02
Anticipated expiration: 2020-06-29

Abstract

The utility model relates to an improved ballpoint pen, which comprises a penholder (1) and a pen core (2), wherein the pen core (2) is installed inside the penholder (1), a screwing rod (4) in threaded connection with the penholder (1) is arranged at the upper end of the penholder (1), a spring block (3) is fixedly installed at the lower end of the screwing rod (4), and the upper end of the pen core (2) is pushed against the spring block (3). The utility model is applicable to the pen cores with different lengths, performs a certain protecting action for a pen point when the ballpoint pen downwards falls, and has reasonable structure and convenient use.

Description

A kind of improved ball pen

(1), technical field

The utility model relates to a kind of ball pen.

(2), background technology

In study and work, ball pen is the requisite writing implements of people.Use ball pen to need often to change pen core, but pen core on the market is different in size, buys wrong pen core then can follow the length of ball pen not to be complementary, brought unnecessary trouble to the user.

(3), utility model content

Technical problem to be solved in the utility model is, a kind of improved ball pen is provided, and is suitable for the pen core of different length, to overcome the defective of existing ball pen.

It is as follows that the utility model solves the problems of the technologies described above the technical scheme that is adopted:

A kind of improved ball pen comprises penholder and the pen core that is installed in penholder inside, it is characterized in that: be provided with the stubborn bar that is threaded with penholder in the upper end of penholder, the lower end of twisting bar is installed with spring block, and the upper end of pen core withstands on the spring block.

Good effect of the present utility model is:

The utility model can make stubborn pole-footing regulate its height according to the length of pen core in penholder, thereby make ball pen be applicable to the pen core of different length by being provided with the stubborn bar that is threaded with the penholder upper end.Because in stubborn bar lower end spring is installed, when ball pen drops down, nib is played the certain protection effect.Rational in infrastructure, easy to use.

(4), description of drawings

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

(5), the specific embodiment

Further specify the utility model below in conjunction with drawings and Examples.

As shown in Figure 1, the utility model comprises penholder 1 and the pen core 2 that is installed in penholder 1 inside, is provided with the stubborn bar 4 that is threaded with penholder 1 in the upper end of penholder 1, and the lower end of twisting bar 4 is installed with spring block 3, and the upper end of pen core 2 withstands on the spring block 3.

When changing pen core, will twist bar 4 and back-out, and pen core 2 therefrom will be inserted in the penholder 1, and then will twist bar 4 and on penholder 1, tighten, and the upper end of pen core 2 be withstood on the spring block 3 get final product from penholder 1 upper end.

Claims

1. improved ball pen, comprise penholder (1) and be installed in the inner pen core (2) of penholder (1), it is characterized in that: be provided with the stubborn bar (4) that is threaded with penholder (1) in the upper end of penholder (1), the lower end of twisting bar (4) is installed with spring block (3), and the upper end of pen core (2) withstands on the spring block (3).