CN2258819Y - Propelling pencil capable of drawing thick line and thin line - Google Patents

Abstract

The utility model discloses a propelling pencil which can be used for drawing thick lines and thin lines, which overcomes the defects of the existing one-head propelling pencil and the existing wooden pencil (a non movable propelling pencil). The pencil holder of the novel pencil is composed of two pencil barrels which are staggered in a reverse direction and in parallel and are combined. Two pencil heads which correspond to the pencil barrels are arranged, wherein, the inner diameter of a metallic pipe of the point position of one pencil head is bigger, and compared with the inner diameter of a metallic pipe of the point position of one pencil head, the inner diameter of the metallic pipe of the point position of the other pencil head is smaller. The two pencil heads use leads with different thicknesses. The utility model is especially suitable for engineering staff for drawing (the proportion of the thick lines and the thin lines required by engineering drawing is about 3: 1).

Description

Can draw the propelling pencil of thick line and fine rule

The utility model is a kind of drawing pencil, is particularly suitable for the engineering staff and draws.

For a long time, the engineering staff often need take time and cut two pencils of thickness standby (wherein is used for the picture thick line, and another is used for the picture fine rule) before drawing.During drawing, the drawing personnel are in the high concentration state, but they are when preparing the picture thick line after preparing the picture fine rule or draw fine rule after having drawn thick line, and the pen of having to put down in the hand removes to take other one-pen.Sometimes, pencil is used of a specified duration, and the lead for retractable pencil thickness does not reach requirement, also need stop and cut, and existing single head propelling pencil only is suitable for three kinds of models of 0.5mm, 0.7mm, 0.9mm of picture fine rule.These some bring many troubles and inconvenience for the drawing personnel.

The purpose of this utility model provides a kind of double-end movable pencil more easily that uses.Hold one-pen and just can draw the different line of thickness.

The utility model is reverse mutually by two propelling pencils, parallel staggering, is made up and transform formation.Its main body is a penholder, and this penholder is reverse mutually by two pen containers, and parallel 1 to 4cm (preferably being 2cm) of staggering forms.The length of each pen container is 9 to 11cm (preferably 10cm) approximately, and the interior structure of the structure of each pen container the inside and common hand push type propelling pencil is identical.For the metal tube at two nib point places, its internal diameter equals the diameter of lead for retractable pencil.Requirement (ratio of thick line and fine rule is about 3: 1) according to Graphing of Engineering, and according to lead for retractable pencil not frangibility and the standardization principle, pencil can be provided with following three types according to the difference of the lead for retractable pencil that uses: (1) thick core 1.2mm, the thick core 1.5mm of thin core 0.5mm (2), the thick core 1.8mm of thin core 0.5mm (3), thin core 0.5mm.Corresponding with pencil, the lead for retractable pencil of four kinds of models of configuration is standby, that is: (a) 0.5mm (b) 1.2mm (c) 1.5mm (d) 1.8mm.

Advantage of the present utility model is: the drawing personnel hold one-pen, and when need picture another kind line, only with hand refers to change the direction that holds a pen.The utility model has adopted existing propelling pencil hand push type to go out the lead for retractable pencil technology, the drawing personnel is not taken time sharpen a pencil.

Do detailed description below in conjunction with drawings and Examples.

Fig. 1 is the utility model schematic perspective view.

Fig. 2 is the horizontal section schematic diagram of middle one section of penholder.

Fig. 3 is the schematic diagram that partly cuts open of the present utility model.

As shown in Figure 3; the interior structure of structure in the pen container and existing common hand push type propelling pencil is identical; form by following components: press head (1); penholder (2); pen container (3); the interior pipe (4) of storage lead for retractable pencil (double do power transmission effect); lead for retractable pencil (5); tube connector (6), spring (7), hollow; resilient acrylic resin tooth head (8); be enclosed within the little cylinder of metal (9) on the acrylic resin tooth head (8); nib (10), the protection lead for retractable pencil metal tube of frangibility (11) not, wherein being connected with the external screw thread on the tube connector (6) of nib (10) and pen container (3) is connected with screw-internal thread fit on written (10).For attractive in appearance and unified, two nibs, press head, the interior pipe of storage lead for retractable pencil, tube connector in two pen containers and each pen container, spring can be made equally size, and each acrylic resin tooth head is enclosed within the little cylinder of metal on the acrylic resin tooth head, and the metal tube at nib point place should be provided with the size of its internal diameter according to the difference of model, one of them metal tube internal diameter is bigger, and another metal tube internal diameter is less.As shown in Figure 3, the lead for retractable pencil of the nib usefulness of lower end is thinner, and the lead for retractable pencil of the nib usefulness of upper end is thicker.The combination of two pen containers as depicted in figs. 1 and 2.

Claims (1)

1. the double-end movable pencil that can draw thick line and fine rule, it is characterized in that: penholder has two mutual reverse pen containers, and is corresponding with pen container, and two nibs are arranged, and its internal diameter of metal tube at a nib point place is greater than the internal diameter of the metal tube at another nib point place.

Images