CN201931798U - Pen refill with changeable length - Google Patents

Abstract

The utility model provides a pen refill with changeable length, which belongs to stationery and mainly solves the problem that the common pen refill is not matched with a pen tube and cannot be used due to fixed length. The pen refill with changeable length comprises a pen refill and a screw rod, wherein a pen head is arranged at one end of the pen refill, a thread is arranged on the inner wall of the other end of the pen refill and is connected with the screw rod in a matching way, and a handle is arranged at the end part of the screw rod. The pen refill with changeable length has the following characteristics: no matter the pen refill is slightly longer or shorter than the pen tube, the screw rod can be adjusted so that the pen refill can be suitable for the length of the pen tube, thereby providing convenience for the use of students.

Description

A kind of pen core that changes length

Technical field

The utility model relates to a kind of stationery, specifically a kind of pen core that changes length.

Background technology

Generally use gel ink pen during present student written industry, when pen core uses up when more renewing pen core, new pen core does not match with the shaft of a writing brush probably, long slightly or short slightly situation appears, because now the market pen core length of selling is fixed, so classmates can only clip a part or thing beyond the Great Wall in the pen core upper pipes of lacking slightly long slightly.

The utility model content

The purpose of this utility model is to provide a kind of pen core that changes length, and this pen core length can be adjusted according to shaft of a writing brush length, has solved because of pen core and the shaft of a writing brush and has not matched the trouble of bringing.

The technical scheme in the invention for solving the technical problem is: a kind of pen core that changes length, its structure comprises pen core and screw rod, one end of described pen core is provided with nib, and other end inwall is provided with screw thread and screw rod is connected, and the end of screw rod is provided with handle.

The beneficial effects of the utility model are: no matter pen core is longer or short slightly slightly than the shaft of a writing brush, all can make pen core to adapt to the length of the shaft of a writing brush by adjusting screw(rod), bring convenience for classmates.

Description of drawings

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

Among the figure: 1 pen core, 2 screw threads, 3 screw rods, 4 handles.

The specific embodiment

As shown in Figure 1.A kind of pen core that changes length, its structure comprise pen core 1 and screw rod 3, and an end of described pen core 1 is provided with nib, and other end inwall is provided with screw thread and screw rod 3 is connected, and the end of screw rod 3 is provided with handle 4.Pinch handle 4 rotary screws 3 of screw rod 3 ends, come the length of adjusting screw(rod) 3 as required, when pen core 1 is longer slightly than the shaft of a writing brush, screw rod 3 rotated in pen core 1 make screw rod 3 to the shortest, on the contrary, when pen core 1 than the shaft of a writing brush in short-term, make screw rod 3 to the length that needs to pen core 1 inner rotary screw rod 3, very easy to use, can not cut pen core or, bring very big facility because of pen core 1 and shaft of a writing brush length differ to the user toward pen core end plug thing.

Claims (1)

1. the pen core that can change length is characterized in that, comprises pen core and screw rod, and an end of described pen core is provided with nib, and other end inwall is provided with screw thread and screw rod is connected, and the end of screw rod is provided with handle.

Images