CN2657944Y - Pulse propelling pencil of thick lead - Google Patents

Abstract

The utility model relates to a pulse propelling pencil of thick lead which pertains to the area of stationeries. The structure comprises a pen holder, a lead storage tube in the pen holder, a three-claw clamp which is mounted at the bottom of the lead storage tube and has an operable three-claw chuck, a screw thread is molded on the inside wall of the three-claw chuck, a locking hoop which holds the three-claw chuck, a return spring which holds the outside of the three-claw clamp, a base sleeve for spring which contains the return spring and is positioned between the lead storage tube and the locking hoop, a head of the pen holder which is in constant connection with the bottom of the pen holder, a buffer sleeve which is arranged at the front part of the molded chamber of the head of pen holder, a sleeve for pen holder which holds the head of pen holder, and a press button which is positioned at the top end of the pen holder and is connected with the lead storage tube in the pen holder. The utility model has the advantages of that the structure is simple, the utilization is convenient, the thick lead does not slip to retract and is safe and environment friendly, the pen head is easy to cut, the writing is comfortable and power-saving, the posture of pen holding can be effectively corrected to prevent near-sightedness which is caused by the incorrect posture of holding a pen.

Description

Pulsating lead bullion propelling pencil

Background technology

The utility model relates to a kind of propelling pencil of writing usefulness, particularly pulsating lead bullion propelling pencil, belongs to the stationery field.

Background technology

At present, in the propelling pencil of being sold on the market, what adopt mostly is thin lead for retractable pencil, diameter is Φ 0.3mm, Φ 0.5mm, Φ 0.7mm, Φ 0.9mm etc., and for the students of the junior years that just learn to write, lead for retractable pencil very easily fractures, paper is scratched easily, and lead for retractable pencil can not be rolled up and cuts to required taper degree.Defective at above-mentioned thin propelling pencil existence, also accidental in the market have a lead bullion propelling pencil, but its structure mainly is based on knock type, rotary, ejecting type lead for retractable pencil, the defective of its existence is: it is very not convenient to use, and break down easily, so most pupil still is accustomed to using Wood-bar pencil, but being extensive use of of Wood-bar pencil causes country will consume a large amount of timber every year again, both waste resource, influenced environmental protection again.

Summary of the invention

Task of the present utility model be to provide a kind of simple in structure, easy to use, write reliably, the lead bullion core can not skid and shrink back, safety and environmental protection, is better than the pulsating lead bullion propelling pencil of Wood-bar pencil.

Also task of the present utility model is to provide a kind of energy the instant rolled pulsating lead bullion propelling pencil of cutting nib.

Another task of the present utility model be to provide a kind of write comfortable, laborsaving, effectively the standard pen holding posture, avoid because of hold a pen incorrect cause myopia pulsating lead bullion propelling pencil.

For finishing above-mentioned task, pulsating lead bullion propelling pencil provided by the utility model, it comprises a shaft of a writing brush 4; One core storage tube 6 is located in the shaft of a writing brush 4; One three-jaw card 7 is installed in core storage tube 6 bottoms, and the three-jaw chuck 9 that its front end tool can be opened/close is shaped on screw thread 8 on the inwall of three-jaw chuck 9; One locking strap 18 is fixed on the three-jaw chuck 9; One returning spring 16 is set on the outer wall of three-jaw card 7; One spring socket sleeve 17 is nested with outside returning spring 16 and between core storage tube 6 and locking strap 18: a pen head 13, and affixed with the bottom of the shaft of a writing brush 4; One damping overlaps 14, is located at the front end of pen head 13 inner die cavities; One Pen-holder sleeve 10 is set on the pen head 13; One by 2, are positioned at the upper end of the shaft of a writing brush 4, and are connected with the interior core storage tube 6 of the shaft of a writing brush 4.

The material of three-jaw card 7 described in the utility model is a metal.

For embodying also task of the present utility model, describedly press cap 19 by upper end tool 2, press and be provided with volume blade 1 in the cap 19, to roll up blade 1 and be installed on the lead for retractable pencil tool rest 20, lead for retractable pencil tool rest 20 will be separated into upper and lower two parts by the inside die cavity 2.

Volume blade 1 described in the utility model is V-arrangement volume blade.

For embodying another task of the present utility model, described Pen-holder sleeve 10 position of handling knob in the front side is shaped on two cavitys 12, and also is shaped on a cavity 11 at the rear side position of handling knob.

The material of Pen-holder sleeve 10 described in the utility model is soft plastics preferably or rubber.

The utility model is because after adopting said structure, have following advantage: 1. can to select diameter for use be lead bullion core about 2mm to lead for retractable pencil, and threaded 8 metal three-jaw card 4 is with after locking strap 18 cooperates in having adopted, can clamp lead for retractable pencil reliably, thereby no matter guarantee to obtain enough folder lead for retractable pencil power, be that the student writes, or the professional charts, drawing, all can be handy, withdrawal of unlikely generation lead for retractable pencil or phenomenon such as fracture; 2. because after adopting the knockout of pulsating structure, very easy to use reliable, only need downward flicking by handle, lead for retractable pencil can progressively expose, removed Wood-bar pencil from and cut the trouble of pen and potential danger with pocket knife, not only for the country saved a large amount of timber, do not produce the wood chip contaminated environment again, save time, laborsaving, safety environmental protection again; 3. by pressing of upper end having been installed dexterously V-arrangement volume blade in the cap, solved the lead for retractable pencil problem of cutting easily, and because of by the obstruct by the lead for retractable pencil tool rest of the inside die cavity of handle, even if the small portion of residual lead ash heart is arranged, an internal contamination shaft of a writing brush can not bleed yet; 4. this propelling pencil has designed three different cavitys at the position of handling knob of Pen-holder sleeve 10, just in time place three fingers, effectively standard pen holding posture, avoided myopia because of the incorrect initiation that holds a pen, and the making of Pen-holder sleeve employing flexible material, the long-term use can not feel fatigue yet.

Accompanying drawing and drawing explanation

Fig. 1 is the stereochemical structure exploded view of an embodiment of the present utility model.

Fig. 2 is the planar structure schematic diagram of the foregoing description of the present utility model.

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment

Please refer to Fig. 1, Fig. 2, the shaft of a writing brush 4 of the present utility model can adopt plastics or metal to make tubulose, and its bottom tool connects cover 5, and the shaft of a writing brush 4 is affixed by the upper end that connects cover 5 usefulness glue and pen head 13, also can adopt screw thread to be rotated with certainly between the two; The upper end outer wall of the shaft of a writing brush 4 is arranged with a pen clip 3, inwall and is that plug-in type flexibly connects by the lower end 2, by forming 2 by pressing cap 19 and being hidden in V-arrangement volume blade 1 and the lead for retractable pencil tool rest 20 pressed in the cap 19, lead for retractable pencil tool rest 20 will be pressed cap 19 and separate by the bottom die cavity 2, the effect of lead for retractable pencil tool rest 20 is used for fixing V-arrangement volume blade 2 on the one hand, is used on the other hand stop that the remaining lead for retractable pencil ashes of pressing in the cap 19 bleed in the pen and pollute the shaft of a writing brush.Core storage tube 6 tubuloses made of plastic of the present utility model, one end top with by being 2 afterbodys that plug-in type is connected, other end top is that tight fit is connected with the afterbody of three-jaw card 7, in case spline is moving, be arranged with returning spring 16 outside the stage casing of three-jaw card 7, front end has the three-jaw chuck 9 that can open or close, the outer wall of three-jaw chuck 9 is arranged with locking strap 18, inwall is provided with screw thread 8, screw thread 8 is used to prevent that lead bullion core 15 from rotating when volume is cut, spring socket sleeve 17 is set in outside the returning spring 16, its upper end contacts with the cover 5 that connects of the shaft of a writing brush 4 bottoms, the lower end contacts with locking strap 18, damping cover 14 is located at the leading section of pen head 13 inner chambers, Pen-holder sleeve 10 is set in the middle part of pen head 13, the cavity 12 of handling knob before its place ahead is provided with when holding a pen two that place for thumb and forefinger, the cavity 11 of handling knob after the rear is provided with when holding a pen one that places for middle finger, the material of Pen-holder sleeve 10 is soft plastics preferably or rubber.

The utility model in use, only need pressing to press 2, every pressing is once by handle, core storage tube 6, three-jaw card 7 and returning spring 16 stretch once, effect by locking strap 18, damping cover 14, make the three-jaw chuck 9 one of three-jaw card 7 heads open one and close, thereby protruding 1 millimeter in the nib position of lead bullion core 15 is got final product.Need roll up when cutting when nib, earlier lead bullion core 15 be pressed out suitable length, take off by 2 again, the lead bullion core that will expose pen head inserts to be pressed in the aperture on cap 19 tops, and rolls up blade 1 with V-arrangement and work good, and rotates several weeks then and lead for retractable pencil can be fined away.Lead for retractable pencil ash under cutting is stored in temporarily to be pressed in the cap, after lead for retractable pencil is cut, only needs and will shake gently by being inverted, and pours the lead for retractable pencil ash into refuse bag and gets final product.Simultaneously, because the iris action of lead for retractable pencil tool rest 20, even if small portion of residual lead for retractable pencil ash is arranged, in the pen that also can not bleed and pollute the shaft of a writing brush.

Claims (6)

1, a kind of pulsating lead bullion propelling pencil is characterized in that it comprises a shaft of a writing brush (4); One core storage tube (6) is located in the shaft of a writing brush (4); One three-jaw card (7) is installed in core storage tube (6) bottom, and the three-jaw chuck (9) that its front end tool can be opened/close is shaped on screw thread (8) on the inwall of three-jaw chuck (9); One locking strap (18) is fixed on the three-jaw chuck (9); One returning spring (16, be set on the outer wall of three-jaw card (7); One spring socket sleeve (17), be nested with outside returning spring (16) and be positioned at core storage tube (6) and locking strap (18) between; One pen head (13), affixed with the bottom of the shaft of a writing brush (4); One damping cover (14) is located at the front end of the inner die cavity of pen head (13); One Pen-holder sleeve (10) is set on the pen head (13); One by (2), is positioned at the upper end of the shaft of a writing brush (4), and be connected with core storage tube (6) in the shaft of a writing brush (4).

2, pulsating lead bullion propelling pencil according to claim 1, the material that it is characterized in that described three-jaw card (7) is a metal.

3, pulsating lead bullion propelling pencil according to claim 1, it is characterized in that described by the upper end tool of (2) is pressed cap (19), press and be provided with volume blade (1) in the cap (19), volume blade (1) is installed on the lead for retractable pencil tool rest (20), and lead for retractable pencil tool rest (20) will be by the inside die cavity of (2) is separated into upper and lower two parts.

4, pulsating lead bullion propelling pencil according to claim 3 is characterized in that described volume blade (1) is V-arrangement volume blade.

5, pulsating lead bullion propelling pencil according to claim 1 is characterized in that described Pen-holder sleeve (10) position of handling knob in the front side is shaped on two cavitys (12), and also is shaped on a cavity (11) at the rear side position of handling knob.

6, pulsating lead bullion propelling pencil according to claim 1 or 5, the material that it is characterized in that described Pen-holder sleeve (10) is soft plastics preferably or rubber.