CN2309954Y

CN2309954Y - Stepless propelling combined pencil

Info

Publication number: CN2309954Y
Application number: CN 97216516
Authority: CN
Inventors: 郭少平
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-12
Filing date: 1997-05-12
Publication date: 1999-03-10
Anticipated expiration: 2007-05-12

Abstract

The utility model relates to a writing pencil, particularly a stepless propelling combined pencil. A pen rod is two semicolumns which are hooped as integration with a hoop loop, and the combined part of two semicolumns are provided with fine seams; a central hole is arranged in a penholder, and a pencil core top rod and a pencil core casing tube are arranged in the central hole; a top rod cross arm which extends out of the fine seam is arranged on the pencil core top rod, and a propelling nut of the post rod cross arm is pressed and is sheathed on the pen rod; screw threads which are matched with propelling screw nuts are arranged on the penholder. Compared with a wooden pencil, the utility model has the advantages of easy use and wood saving and overcomes the defects that a propelling pencil is easy to break off the pencil core and is effectively used; the length is short; the waste is big.

Description

Stepless propelling four unification pencils

The utility model relates to a kind of writing and uses pencil, specifically, is a kind of stepless propelling four unification pencils.

The pencil that uses is generally wood pen holder pencil and propelling pencil at present.Wood pencil uses inconvenience and wastes a large amount of timber, effectively uses length short; Propelling pencil is because pen core is segmentation advances, pen core frangibility during use, and be a kind of specification pen core, it is inconvenient to use, and the pen core availability is not high yet.

The purpose of this utility model be to provide a kind of pen core availability height, easy to use, can collect the stepless propelling four unification pencils that plurality of specifications is an one.

For achieving the above object, the utility model adopts following technology: it comprises penholder, the pen core sleeve pipe, penholder is that two semicolumns are one with the cranse hoop, finedraw is offered in two semicolumn joint portions, offer centre bore in the penholder, built-in pen core push rod of centre bore and pen core sleeve pipe, the pen core push rod can move in the pen core sleeve pipe, the pen core sleeve pipe can move in centre bore, establish on the pen core push rod by the push rod cross-arm that stretches out in the finedraw, the promotion nut sleeve of pushing down the push rod cross-arm has the screw thread that is complementary with pushnut on the penholder on penholder, the promotion of turn downwards nut can drive the pen core in the pen core push rod promotion pen core sleeve pipe.

The utility model compared with prior art, have following advantage: it is than wooden pencil saving timber easy to use, overcome propelling pencil frangibility pen core, and effectively use the shortcoming that length is short, waste is big, the pen core availability also can arbitrarily be made a kind of or four kinds of pencils that specification is an one more than 98%.

Fig. 1 is the utility model structural representation;

Fig. 2 is Figure 1A-A face cut-away view.

The drawing explanation: penholder (1), (2), push rod (3), push rod cross-arm (4), pen core sleeve pipe (5), (6), (7) promote nut (8), cranse (9A), (9B), finedraw (10), centre bore (11).

The utility model is described in further detail with embodiment below in conjunction with accompanying drawing: as Fig. 1, shown in Figure 2, the utility model comprises penholder (1,2), pen core sleeve pipe (5,6,7), penholder is two semicolumns cranse (9A, 9B) hoop is one, finedraw (10) is offered in two semicolumn joint portions, offer centre bore (11) in the penholder, built-in pen core push rod of centre bore (3) and pen core sleeve pipe, the pen core push rod can move in the pen core sleeve pipe, the pen core sleeve pipe can move in centre bore, establish on the pen core push rod by the push rod cross-arm (4) that stretches out in the finedraw, the promotion nut (8) of pushing down the push rod cross-arm is enclosed within on the penholder, the screw thread that is complementary with pushnut is arranged on the penholder, and the promotion of turn downwards nut can drive the pen core in the pen core push rod promotion pen core sleeve pipe.The pen core sleeve pipe also can be provided with 1 or 2 as required, during use, selects the pen core sleeve pipe of different bores for use according to the specification of pen core.

Claims

1, a kind of stepless propelling four unification pencils, it comprises penholder, pen core sleeve pipe, it is characterized in that: penholder (1), (2) are that two semicolumns are one with cranse (9A), (9B) hoop, finedraw (10) is offered in two semicolumn joint portions, offer centre bore (11) in penholder (1), (2), built-in pen core push rod of centre bore (11) (3) and pen core sleeve pipe, establish on the pen core push rod (3) by the push rod cross-arm (4) that stretches out in the finedraw (10), the pushnut (8) of pushing down push rod cross-arm (4) is enclosed within on the penholder, and the screw thread that is complementary with pushnut (8) is arranged on the penholder.

2, stepless propelling four unification pencils according to claim 1, it is characterized in that: the pen core sleeve pipe is 1-3.