CN2650979Y

CN2650979Y - Ink injecter

Info

Publication number: CN2650979Y
Application number: CN 200320103787
Authority: CN
Inventors: 林泰均
Original assignee: LANFEI CO Ltd
Current assignee: LANFEI CO Ltd
Priority date: 2003-11-06
Filing date: 2003-11-06
Publication date: 2004-10-27
Anticipated expiration: 2013-11-06

Abstract

The utility model relates to an ink injector for a printer ink cartridge injected with ink many times, which comprises a pipe 10, an injection rod, a piston sleeve 30 and a needle sleeved in a connecting column 14 of the lower end of the pipe. The piston sleeve is made of flexible materials, such as rubber or soft plastic, sleeved in a piston core to form a piston, and the piston implements the movable sealing combination with the inner wall of the pipe. A connector 22 of the lower end of the injection rod is inserted into a hole 45 of an upper flat plate 41 of the piston core, a fixed pin 24 and a fixed pin 26 prevent the injection rod from pulling out of a piston core 40, the pipe inner space under the piston stores ink, the ink can be injected into the space through pushing and pressing the injection rod, and the air pressure after injected with ink in the ink cartridge can be adjusted through pulling the injection rod in order to ensure the smooth discharge of the printer ink. The connection between the injection rod of the injector and the piston can become apart, which makes the utility model has convenient transportation, storage and use. Only the injection rod is arranged, the ink can be injected, which makes the possibility of that the ink wrongly flows out nonexistent.

Description

Ink syringe

Technical field

The utility model relates to ink syringe, more specifically, relates to the ink syringe of ink-cases of printers.

Background technology

The ink-jet printer of current common use, its print cartridge is disposable, and print cartridge promptly was dropped after promptly box internal memory China ink was used up, and costed a lot of money first, and very expensive print cartridge is only with once just not using again.Second because the program setting of printer relation is not just sent " China ink to the greatest extent " information when the box internal memory China ink of being everlasting is used up fully, printer quits work, and the surplus China ink in the box can not effectively use again, it is not little to accumulate waste.

Developed and continued the print cartridge that uses after the repeatedly refilling, ink is used up, and replenishes again and inserts new ink, and print cartridge can continue to use.

But filling ink need guarantee to fill an amount of, also should guarantee to have in the box suitable air pressure, make smooth and easyly when printing to go out China ink, and ink can freely not trickle when not printing.Therefore, need a kind of ink syringe, except injecting ink in the print cartridge, can also aspirate the print cartridge inclusion, to adjust the box internal pressure.The injector for medical purpose that includes pipe, piston boit and pin can substitute the usefulness into the ink injection, but, when the injection-tube internal memory remains ink injection, almost isometric piston boit stretches out outside the injection-tube, not only store, transport inconvenience, and careless bruising piston boit, will make ink liquid extruding-injection pipe, wasted ink, article around also staiing.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of ink syringe, guarantees conveniently, suitably, perfectly fills ink, is fit to store and transportation, and adjusts the box internal pressure.

The technical solution of the utility model is: a kind of ink syringe, and comprise pipe 10, piston and inject pin, it is characterized in that also including injection bar 20; Described pipe has the lower surface, and the outstanding outward pin joint pin 14 that is provided with of mediad injects pin for socket; Described piston comprises piston bush 30 and piston core 40, and described piston bush is for tightly being placed in outside the described piston core; Described piston core 40 by upper flat plate 41, be positioned at the bottom of core tube 43 under the described upper flat plate and the core 44 and constitute, described core underseal closes described core tube lower surface, at the outstanding core tube flange 42 that is provided with of the outer peripheral face of described core tube, establish circular hole 45 in described upper flat plate central authorities, on described circular hole circumference to two places of center of circle symmetry to peripheral hardware slotted eye 46,47, described circular hole 45 and slotted eye 46,47 connect described upper flat plate 41 arrive by upper flat plate, core tube, and core at the bottom of the core chamber 48 that surrounds; Described injection bar 20 is by upper plate 21, lower plate 23 and be positioned at upper plate, supporter 25 between the lower plate constitutes, on described lower plate 23 lower surfaces, give prominence to cylindrical connector 22 is set, on described connector outer peripheral face to the outstanding anti-avulsion pin 24 that is provided with in centrosymmetric two places, 26, distance is slightly larger than the thickness of described piston core upper flat plate between anti-avulsion pin and described lower plate 23 lower surfaces, connector can pine changes ground and cooperates with described circular hole 45 on the described piston core upper flat plate 41, described two anti-avulsion pins 46, length between 47 tops is less than two slotted eyes 46 on the described piston upper flat plate 41, distance between 47 bottom lands makes described injection bar 20 and piston core 40 do the binding that can throw off; Described piston bush is that elastic soft plastic is made, constitute by the cover end 33 and along the straight upwardly extending jacket wall 34 of described cover dolly, on the jacket wall internal face, establish circular groove 35, the shape of described circular groove and position are consistent with core tube bead 42 on the described piston core periphery, axially outwards outstanding dividually at least one convex tendon 32 that is provided with on described jacket wall 34 excircles, the external diameter of the outstanding highest point of described convex tendon is slightly larger than the intracavity diameter of described pipe 10, the piston that piston core is put form behind the piston bush keeps piston and tube cavity movably to seal combination by the described convex tendon 32 of extruding described pipe 10 inner chambers of packing into.

Ink syringe of the present utility model is simple in structure, and it is convenient, abundant, suitable to fill ink, but makes the print cartridge of refilling be able to be used for printer conveniently, economically, reduces the printing cost, avoids waste.It is convenient to store, transport, and ink not reason pushes accidentally and trickles, around the contamination.

Description of drawings

Fig. 1 is the overall decomposition texture schematic diagram of the utility model ink syringe embodiment.

Fig. 2 is the overall profilograph of Fig. 1 embodiment ink syringe.

The specific embodiment

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.Fig. 1 is the overall decomposition texture schematic diagram of the utility model embodiment.Fig. 2 is the overall profilograph of Fig. 1 embodiment.

10 is the pipe of injector among the figure, and 20 is the injection bar of injector, and 30 is piston bush, and 40 is piston core, and the injector pin is arranged in addition, not shown, can be for being inserted on described pipe 10 lower ends.Pipe 10 is hollow tubes, by the transparent plastic manufacturing, and lower end closed, there is outwards outstanding pin joint pin 14 in lower surface central authorities, and the post center is a through hole 15, is connected with inner chamber in the described pipe.The upper end of pipe 10 is an opening, to outwards managing orchid 11, supports this pipe 10 with the convenient ink process hand that injects along the upper port width of cloth.

Piston is made up of piston core 40 and piston bush 30, and piston bush 30 is by elastic soft plastic, for example rubber or flexible plastic manufacturing.Piston bush is the round tray shape, for tightly being enclosed within outside the piston core, constitute by the cover end 33 and along overlapping the jacket wall 34 that extends vertically upward at the end, form groove 31 at jacket wall 34 inner chambers, on jacket wall 34 peripheries, protrude outwards to few convex tendon 32, be 2 in this example, divide vertically and be arranged, the external diameter of convex tendon 32 outstanding highest points should be slightly larger than intracavity diameter in the pipe, after filling in the piston extruding in the pipe 10 by the elasticity of piston bush material, convex tendon 32 stretchings movably seal combination at inside pipe wall, and it is airtight to reach the following tube cavity of piston space.Piston bush 30 utilizes its groove 31 to be enclosed within on the piston core 40 to constitute piston, and closely firm in order to make between described core and the cover socket, the internal diameter of groove 31 should be slightly less than the diameter of piston core 40 counterparts for this reason.Can also on jacket wall 34 internal perisporiums of piston bush 30, establish circular groove 35, the transverse shape of circular groove 35 can be square, rectangle, triangle etc., this circular groove 35 can be located in the described jacket wall 34 and week axially go up the optional position, for example, is located at jacket wall 34 and the cover ends 33 intersection.Accordingly, piston core is consistent with piston bush mating part shape, and promptly outstanding core tube forms a core tube flange 42 at the bottom of the core of piston core.

Piston core 40 upper ends are dull and stereotyped 41, are wholely set core tube 43 below it, and the core tube is wholely set at the bottom of the core 44 for 43 times again.As above-mentioned, the size and dimension of core tube 43 will be consistent with piston bush counterpart size and dimension, reach core, overlap fastening cooperation.Make piston no matter extruding downwards or suction action upwards, all can not loose and take off.Promptly have at the bottom of the core that the core tube flange 42 that the core tube 43 that cooperates with jacket wall 34 and circular groove 35 cooperate and the cover end 33 cooperate 44.

Because ink syringe of the present utility model is compared with prior art, post be will inject and bar and piston two parts will be separated into, in the scheme of present embodiment, be adapted to have corresponding structure separating of bar and piston, the piston portion corresponding structure is: 41 upper surface central authorities are provided with circular hole 45 at the piston core upper flat plate, on this circular hole circumference two places of center of circle symmetry being stretched out respectively is provided with two slotted eyes 46,47, and the groove width of this two slotted eye is less than the diameter of circular hole 45.Under piston core upper flat plate 41, at the bottom of the core on 44, and core tube 43 surrounds is a core chamber 48.

Injecting bar 20 is made of upper plate 21, lower plate 23 and the supporter 25 that is supported between the upper and lower plate, this three can be integrally formed, connector 22 is set on the lower surface of lower plate 23 highlightedly, and the circular hole 45 of itself and above-mentioned piston core upper flat plate 41 can pine changes ground and cooperates.Connector 22 outer peripheral faces are provided with distance between the bottom land that distance between an

anti-avulsion pin

24,26, the two anti-avulsion pin tops is slightly less than two slotted eyes 46,47 on the above-mentioned piston core upper flat plate to center symmetry two place's width of cloth to respectively stretching out.When the operating ink injector, when needing injection bar 20 to be connected with piston core 40, with described connector 22, insert the circular hole 45 on the piston core upper flat plate 41, inject the two

anti-avulsion pins

24,26 that are provided with on the connector 22 of bar and just reach described core chamber 48 by described two slotted eyes 46,47 respectively, bar 20 is injected in rotation, described

anti-avulsion pin

24,26 leaves slotted eye 46,47 positions and forwards under the upper flat plate 41, at this moment, withdrawing injects bar 20, process

anti-avulsion pin

24,26 can make on piston core 40 and piston bush 30 relative pipe 10 inwalls with upper flat plate 41 and move, and swabbing action takes place.For this reason, the distance between

anti-avulsion pin

24,26 and the injection bar lower plate 23 is slightly larger than the thickness of piston core upper flat plate 41.

The lower surface shape of unqualified pipe 10 inner chambers in last example, it is flat usually, so at the bottom of the piston core 44 and piston bush at the bottom of 33 correspondingly also be flat.In order to guarantee that managing the interior ink of being deposited can go out by maximum possible injection, another kind of scheme is to be made from tube wall to sink to central authorities in the lower surface of tube cavity, and promptly the lower surface is a taper seat, and vertex of a cone place is described through hole 15.Correspondingly, at the bottom of the piston core 44 with piston bush at the bottom of 33 get the taper seat the same with this lower surface.

Injecting the supporter 25 of bar, can be any structure, is that the cross section is criss-cross bar in this example, and each is integrally formed with upper plate 21 and lower plate 23 up and down.

Inject the operation requirement of ink according to print cartridge, the injector needle guard is connected on the joint pin 14 of pipe 10 lower ends, inject the circular hole 45 of company's 22 insertion piston core upper flat plate 41 of bar 20 lower ends, rotate and inject bar 20, make

anti-avulsion pin

24,26 on the connector 22 leave described slotted eye 46,47 positions and arrive piston core upper flat plate 41 times, print cartridge is advanced in injector cushion, hold with forefinger and middle finger and manage below 10 the flange 11, the thumb pressure injection is gone into plane 21 on the bar upper plate, and ink enters print cartridge with pressurized.

By refilling operation requirement, need make suction action, during with adjusting print cartridge internal pressure, then withdrawing injects bar 20, gets final product.

The scale of ink volume helped to understand injection rate and aspiration in mint-mark was represented to manage on the pipe outer peripheral face.

Outside the pin joint pin 14 of pipe lower end a guard ring 13 can be set again, surround described joint pin 14, play the effect of protection pin joint pin 14, keep holding the space that backshank is installed between guard ring and the joint pin.

When not injecting ink, can add cap, be enclosed within on the described pin joint pin 14, more can prevent the possibility that the ink mistake flows out.

Claims

1. an ink syringe comprises pipe (10), piston and injects pin, it is characterized in that: also include and inject bar (20);

Described pipe has the lower surface, and the outstanding outward pin joint pin (14) that is provided with of mediad injects pin for socket;

Described piston comprises piston bush (30) and piston core (40), and described piston bush is for tightly being placed in outside the described piston core;

Described piston core (40) by upper flat plate (41), be positioned at core tube (43) under the described upper flat plate and core at the bottom of (44) constitute, described core underseal closes described core tube lower surface, at the outstanding core tube flange (42) that is provided with of the outer peripheral face of described core tube, establish circular hole (45) in described upper flat plate central authorities, on described circular hole circumference to two places of center of circle symmetry to peripheral hardware slotted eye (46,47), described circular hole (45) and slotted eye (46,47) connect described upper flat plate (41) arrive by upper flat plate, core tube, and core at the bottom of the core chamber (48) that surrounds;

Described injection bar (20) is by upper plate (21), lower plate (23) and be positioned at upper plate, supporter between the lower plate (25) constitutes, the outstanding cylindrical connector (22) that is provided with on described lower plate (23) lower surface, on described connector outer peripheral face to the outstanding anti-avulsion pin (24 that is provided with in centrosymmetric two places, 26), distance is slightly larger than the thickness of described piston core upper flat plate between anti-avulsion pin and described lower plate (23) lower surface, connector can pine changes ground and cooperates with described circular hole (45) on the described piston core upper flat plate (41), described two anti-avulsion pins (46,47) length between the top is less than two slotted eyes (46 on the described piston upper flat plate (41), 47) distance between the bottom land makes described injection bar (20) and piston core (40) do the binding that can throw off;

Described piston bush is that elastic soft plastic is made, constitute by the cover end (33) and along the straight upwardly extending jacket wall of described cover dolly (34), on the jacket wall internal face, establish circular groove (35), the shape of described circular groove and position are consistent with core tube bead (42) on the described piston core periphery, axially outwards outstanding dividually at least one convex tendon (32) that is provided with on described jacket wall (34) excircle, the external diameter of the outstanding highest point of described convex tendon is slightly larger than the intracavity diameter of described pipe (10), the piston that piston core is put form behind the piston bush keeps piston and tube cavity movably to seal combination by the described convex tendon of extruding (32) described pipe (10) inner chamber of packing into.

2. by the described ink syringe of claim 1, it is characterized in that described piston bush made by rubber.

3. by the described ink syringe of claim 1, it is characterized in that the lower surface (12) of described pipe (10) is a taper seat, vertex of a cone place establishes described through hole (15); At the bottom of the core of described piston core at the bottom of the cover of (44) and described piston bush (33) be the taper shape of respective shapes.

4. by the described ink syringe of claim 1, it is characterized in that described pipe along the upper port width of cloth to outwards managing orchid (11).

5. by any described ink syringe among the claim 1-4, it is characterized in that upper plate, lower plate and the supporter of described injection bar (20) is formed as one, described supporter cross section is a cross.

6. by any described ink syringe among the claim 1-4, it is characterized in that having on the periphery of described pipe the scale of expression pipe internal volume.

7. by any described ink syringe among the claim 1-4, it is characterized in that the lower end pin joint pin (14) of described pipe is provided with guard ring (13) outward, surround described joint pin (14) with keeping at a distance.