CN2402486Y - Non-suction fountain pen - Google Patents

Abstract

The utility model relates to a suction freeing type fountain pen. The utility model comprises a pen cap, a front housing of the fountain pen, a back housing of the fountain pen, and a base which is provided with a pen needle and a pen tongue on the front end. The utility model is characterized in that an ink conducting tube is arranged on the back end of the base, and an air duct is arranged in the ink conducting tube; an air inlet on the lower end of the air duct is positioned on the axial cord of the ink conducting tube and is communicated with an air conducting passage on the pen tongue; the upper end of the ink conducting tube is inserted in a pen core which is fixed on the base. When ink in the pen core is used out, a new pen core can be replaced. The new pen core is fixed on the base, and simultaneously, a sealing opening of the new pen core is pushed away by the upper end of the ink conducting tube. The ink can flows downwards along the ink conducting tube to the junction of the pen tongue and the pen needle for the writing of the pen needle.

Description

Exempt to inhale the formula pen

The utility model relates to the stationery field, particularly a kind ofly exempts to inhale the formula pen.

As everyone knows, but existing pen is water absorption type, and its structure comprises pedestal, be fixed on a fore shell on the pedestal and a back cover, the intrinsic proposition of pedestal front end sleeve, and the proposition outsourcing is provided with a pin, the pedestal rear end is fixed with the rubber pocket of suction, is provided with a wireway that passes straight through to the proposition place in the rubber pocket.When pin water, air can enter in the rubber pocket by wireway, influences a pin water outlet in order to avoid produce negative pressure.Use the pen of this kind structure, will absorb water in the bottle of Heisui River when ink uses up in the rubber pocket, overcoat always is stained with Heisui River during suction, must look for paper to come wiping after the suction, in addition also usually handle make dirty; And bottled ink makes the ink retrogradation, the water outlet of an influence pin uncapping afterwards apt to deteriorate or losing moisture content; Moreover, last class hour of student, also usually be with the Heisui River bottle, very inconvenient.Ballpoint pen and disposable signature pen are arranged at present, though there is not the inconvenience of pen suction, ballpoint pen and signature pen can not substitute pen all the time fully, on the legal documents or some are more regular and need on long-time files of preserving all handy pen to write; In addition then, the pen fluent writing, a pin is flexible than ballpoint pen and signature pen, is more convenient for bringing into play each one individual character.But it is too outmoded that the major defect of pen is exactly a way of supplying water, incompatible modern fast pace paces.

The purpose of this utility model be a kind of replaceable pen core of design exempt to inhale the formula pen.

Task of the present utility model is finished like this: exempt to inhale the formula pen, comprise a fore shell and back cover that is fixed on the pedestal and the proposition that is fixed on a pedestal front end band pin, on a fore shell, be stamped the cap for brush, it is characterized in that the pedestal rear end is fixed with an aqueduct, be provided with a wireway in the aqueduct, the air inlet of wireway lower end is positioned on the axis of aqueduct, communicates with air guide channel on the proposition, insert in the pen core aqueduct upper end, and pen core is fixed on the pedestal.The ink that use is worked as in the pen core uses up, pen core can be screwed off, change a new pen core, it seals by the upper end of aqueduct and backs down new pen core on being fixed on pedestal, ink can down flow to a proposition and a pin junction along aqueduct, the need that supply a pin to write, and the return-air after the proposition water can enter in the pen core by the air guide channel on the proposition, wireway, in order to avoid produce negative pressure.

The utlity model has reasonable in design, it is easy and convenient to change pen core, and pen core is easy to carry, can keep the water content of ink again, unlikely retrogradation, and capacity is also big.

Below in conjunction with concrete legend the utility model is described further:

The exploded view of Fig. 1 pedestal and aqueduct and pen core

Fig. 2 pen structural representation

With reference to Fig. 1, the exploded view of pedestal 1 and aqueduct 2 and pen core 3, wherein in order to express pen core 3 internal structures, pen core 3 adopts the complete sections diagram.Pedestal 1 rear end is fixed with an aqueduct 2, aqueduct 2 is screwed on the internal thread of pedestal 1 by screw thread, be provided with a wireway 21 in the aqueduct 2, the air inlet 22 of wireway 21 lower ends is positioned on the axis of aqueduct 2, communicate with the air guide channel 41 on the proposition 4, insert in the pen core 3 aqueduct 2 upper ends, and pen core 3 is fixed on the pedestal 1, and pen core 3 relies on internal thread to be screwed on the external screw thread of pedestal 1.Pen core 3 finished product delivery port places are provided with piston cap 31, are changing pen core 3, and in the time of on the precession pedestal 1, piston cap 31 can be backed down in aqueduct 2 tops, and ink can enter proposition 4 and a pin 5 places by aqueduct 2.Wireway outlet 24 and aqueduct import 25 all are in aqueduct 2 tops, and aqueduct outlet 26 is in the bottom of aqueduct 2.

With reference to Fig. 2, exempt to inhale formula pen integral body, comprise a fore shell 6 and back cover 7 that is fixed on the pedestal 1 and the proposition 4 that is fixed on pedestal 1 a front end band pin 5, on a fore shell 6, be stamped the cap for brush 8, these are conventional configuration, and are represented by dotted lines.Chief creating part of the present utility model promptly is to be fixed with an aqueduct 2 in pedestal 1 rear end, be provided with a wireway 21 in the aqueduct 2, the air inlet 22 of wireway 21 lower ends is positioned on the axis of aqueduct 2, communicate with the air guide channel 41 on the proposition 4, insert in the pen core 3 aqueduct 2 upper ends, and pen core 3 is fixed on the pedestal 1.Pen core 3 delivery port places are provided with piston cap 31, and aqueduct 2 upper ends are provided with dop 23, and dop 23 can insert piston cap 31 bottoms and be stuck, and still cover on pen core 3 delivery ports so that pen core 3 screws out back piston lid 31, in case excess ink spills in the pen core.Aqueduct 2 and pen core 3 can be made of the transparent plastic of suitable hardness.When pen core 3 finished products are made, from pen core open rearward end 32 piston 31 is put into pen core 3 earlier, and with piston stifled good lower end outlet, pour into the ink of 85% pen core volume again, with open rearward end 32 sealings, the pen core making finishes so then.This pen core is an one-off, and ink uses up one of back replacing and gets final product.In actual use, use up, and when not having the new pen core of changing usefulness, can not screw off old tribute, and, also can squeeze out the air in the pen core, do emergent the use and draw ink in the ink bottle with its rubber pocket as common pen as ink in the pen core.

Claims (2)

1, a kind ofly exempts to inhale the formula pen, comprise a fore shell and back cover that is fixed on the pedestal and the proposition that is fixed on a pedestal front end band pin, on a fore shell, be stamped the cap for brush, it is characterized in that the pedestal rear end is fixed with an aqueduct, be provided with a wireway in the aqueduct, the air inlet of wireway lower end is positioned on the axis of aqueduct, communicates with air guide channel on the proposition, insert in the pen core aqueduct upper end, and pen core is fixed on the pedestal.

2, according to claim 1ly exempt to inhale the formula pen, it is characterized in that pen core delivery port place is provided with piston cap, the aqueduct upper end is provided with dop, and dop can insert the piston cap bottom and be stuck.

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