CN2292675Y - Propelling pencil with thick writing-core - Google Patents

Abstract

The utility model discloses a propelling pencil with a thick lead core, composed of a pencil tube, a cone-shaped sharpening sleeve, and a conical head screw rod, wherein, the cone-shaped sharpening sleeve is sheathed on the pencil tube, and the conical head screw rod is connected with a pencil head into a whole. The conical head screw rod can be combined with the cone-shaped sleeve to lock a lead core, and bring the lead core out. The cone-shaped sharpening sleeve is taken from thepencil tube and is sheathed on the pencil head for rotating to sharp the lead cord into cone shape. With convenient and quick operation, the utility model is especially suitable for junior students to write and engineers to plot with.

Description

Thick core propelling pencil

Provided by the utility model, be a kind of lead bullion core propelling pencil.

At present, the pen that the students of the junior years are used to write and project planner's used pen of drawing are mostly based on Wood-bar pencil.Wood-bar pencil is thick because of lead for retractable pencil, intensity height, thereby lead for retractable pencil frangibility not.Be used for drawing, also can as required the soft durometer of lead for retractable pencil be selected.Though time-consuming when using, effort, it is wooden to prune with cutter, the sharpening lead for retractable pencil, and to write drawing effect good because of it, thereby very popular.Its use amount is big, and is also very serious to the consumption of timber resources.

Arrest in structural behaviour own though existing propelling pencil is economic, practical, employed lead for retractable pencil can only be at Φ below 1 millimeter, and because of lead for retractable pencil is thin, intensity difference very easily fractures when the student is used to write, and the acute angle of lead for retractable pencil front end also very easily scratches paper.Be used for drawing, because of lead for retractable pencil does not have the branch of soft or hard, can not mark the lines of different thicknesses as required, drawing effect is also not satisfactory, thereby its use amount is far away from Wood-bar pencil.

The purpose of this utility model is to provide a kind of lead bullion core propelling pencil, and it is economical and practical, and writing effect is good, and used lead for retractable pencil is the same with the lead for retractable pencil specification with Wood-bar pencil, can use lead for retractable pencil and the cured core of crayon in 4 millimeters scopes of 2 millimeters～Φ of Φ.Lead for retractable pencil length is the same with rod lead for retractable pencil length, is a whole lead for retractable pencil, and length is below 180 millimeters.Use one section, turn front end and screw out one section, take off the taper that is enclosed within on the penholder rear end then and cut cap, be enclosed within the penholder front end, cap or penholder are cut in the turn taper, lead for retractable pencil can be whittled into taper.Because of its used lead for retractable pencil is thick, thereby the intensity height, frangibility not can be changed simultaneously the lead for retractable pencil of different soft and hard degree according to need.It is molten as a whole with penholder that cap is cut in the taper that the utility model will be cut plumbous usefulness, and it is easy to use, quick, practical, save time, laborsaving, save timber, promptly reduced resource consumption, improved writing quality and effect again.

The utility model is achieved in that

Fixing a swivel nut in one end of the hollow shaft of a writing brush, the coning mantle shape that links to each other with taper nib upper end is cut the cap or the shaft of a writing brush, lead for retractable pencil can be whittled into taper.Because of its used lead for retractable pencil is thick, thereby the intensity height, frangibility not can be changed simultaneously the lead for retractable pencil of different soft and hard degree according to need.It is molten as a whole with the shaft of a writing brush that cap is cut in the taper that the utility model will be cut plumbous usefulness, and it is easy to use, quick, practical, save time, laborsaving, save timber, promptly reduced resource consumption, improved writing quality and effect again.

The utility model is achieved in that

Fixing a swivel nut in one end of the hollow shaft of a writing brush, the conehead screw rod that links to each other with taper nib upper end cooperates with nut.One tapered sleeve is arranged in the shaft of a writing brush, and it matches with the conehead screw rod.Fixing a ring set in the shaft of a writing brush, tapered sleeve then can move up and down between swivel nut that is fixed and ring set.Lead for retractable pencil is passed from the taper nib, after lead for retractable pencil finishes by conehead screw rod, tapered sleeve, ring set, anti-vibration sleeve placement, turn the taper nib, conehead was opened on the conehead screw rod of notch and was moved, and with tapered sleeve jack-up, when tapered sleeve pushed up to ring set, tapered sleeve was pressed in the conehead on the conehead screw rod, lead for retractable pencil was held tightly after opening the conehead pressurized of notch.Take off the taper that is enclosed within shaft of a writing brush upper end and cut cap, be enclosed within on the taper nib, cap is cut in the turn taper, and the taper hole of cutting in the cap because of taper is the same with the required taper of lead for retractable pencil, and has notch, and lead for retractable pencil for cutting sword, through rotation, just is whittled into taper with lead for retractable pencil with notch.After the lead for retractable pencil of cutting uses up, turn the taper nib, it is moved down, because of having circular hole, and tightly be enclosed within on conehead rear end and the cylindrical that the tapered sleeve cylinder matches on the tapered sleeve on the coupled conehead screw rod, thereby tapered sleeve does not come off when moving down, and be with lead for retractable pencil to move down, when tapered sleeve moves down into when pasting mutually with the swivel nut end face, tapered sleeve moves on just beginning, and comes off.So move in circles.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fix swivel nut (2) in one stomidium of the shaft of a writing brush (7), simultaneously, fixing ring set (5).Tapered sleeve (4) can move between swivel nut (2) and ring set (5) along with taper nib (1).End in tapered sleeve (4) hole is tapered, and the other end becomes circle hole shape.Match with tapered sleeve (4) inner conical surface be with the conehead screw rod (3) that is connected as a single entity of nib (1) on conehead, the circular hole at tapered sleeve (4) inner conical surface rear portion then matches with the cylinder of conehead screw rod (3) epicone back of head, conehead on the conehead screw rod (3) is to the cylinder at its rear portion, have notch along central cross, conehead screw rod and taper nib are as a whole, and the screw thread on it matches with swivel nut (2).During use, the conehead that lead for retractable pencil (6) is passed taper nib (1) and is attached thereto, in the hole of screw rod (3), and pass tapered sleeve (4), ring set (5), anti-vibration sleeve (9), turning taper nib (1) then makes it to move towards ring set (5), the conehead of conehead screw rod (3) heads on tapered sleeve (4) and also moves thereupon, when paste mutually with the lower surface of ring set (5) upper surface of tapered sleeve (4), tapered sleeve (4) is no longer mobile, conehead screw rod (3) then moves on continuing, and the conehead on the conehead screw rod (3) headed into tapered sleeve (4), conehead tightens after crushed by tapered sleeve (4) conical surface.Because of conehead has notch, lead for retractable pencil (6) is held in the pressurized after-contraction tightly, and simultaneously, the cylinder at conehead rear portion also enters in the circular hole at tapered sleeve (4) rear portion.In the time of need cutting lead for retractable pencil, take off the taper that is enclosed within the shaft of a writing brush (7) one ends and cut cap (9), be enclosed within on the nib (1), the turn shaft of a writing brush (7) or taper are cut cap (9) and are got final product.Taper is cut taper hole in the cap (9) because of the same with the required taper of lead for retractable pencil, and end face laterally has notch, forms blade (10), and lead for retractable pencil (6) rotates along blade (10) and just forms taper.After the lead for retractable pencil of cutting uses up, turn taper nib (1), make it to move down, with cylinder on taper nib (1) the conehead screw rod (3) in aggregates because of in the circular hole that is enclosed within tapered sleeve (4) rear portion, when moving down, tapered sleeve (4) does not come off, move down but have lead for retractable pencil (6) in arms, when moving down into and swivel nut (2) when pasting mutually, the side slowly withdraws from, comes off, turn taper nib (1) then, make it to move, to end lead for retractable pencil is held tightly.

The utility model provides a kind of convenient and practical lead bullion core propelling pencil for the students of the junior years and project planner.It has saved and has used the inconvenience that Wood-bar pencil brought, and simultaneously, has also played saving timber, reduces the positive role of resource consumption.

Claims (3)

1, lead bullion core propelling pencil of cutting cover (9) formation by the shaft of a writing brush (7), taper nib (1) and taper, it is characterized in that described taper nib (1) and conehead screw rod (3) are as a whole, conehead on the conehead screw rod (3) has notch, and tapered sleeve (4) is being overlapped on the top.

2, a kind of lead bullion core propelling pencil according to claim 1, its feature also is fixing swivel nut (2) and ring set (5) in the shaft of a writing brush (7), and tapered sleeve (4) can move betwixt;

3, a kind of lead bullion core propelling pencil according to claim 1, its feature also be described taper cut in the cover (9) to cut plumbous hole also tapered, its blade (10) is realized by slotting.

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