CN208558722U - Liquid-leakage preventing nib - Google Patents

Abstract

Liquid-leakage preventing nib, it is managed including nib, one end of the nib pipe is pen tip, the front end of the pen tip has ball chamber, is equipped with rotatable ball in the ball chamber, the ball chamber is communicated with the inner cavity of pen tip, elastic component is equipped in the inner cavity of the nib pipe, the lower part of the elastic component is connected with thimble, and the end of the thimble offsets with ball, which is used to thimble pressing to ball.In the utility model, by the setting of thimble and elastic component, thimble is enable to head on ball always, the elastic force of elastic component is smaller, but generation the phenomenon that also withstand on ball when not writing in the bound edge portion of ball chamber, seal liquid gap, prevent leakage；When writing, ball is retracted slightly after being under pressure, and ink is completed to write operation by going out the outflow of liquid gap at this time.

Description

Liquid-leakage preventing nib

Technical field

The utility model belongs to stationery field, and in particular to a kind of liquid-leakage preventing nib on ball pen.

Background technique

Stationery is many kinds of, and wherein lettering pen is a kind of very widely used stationery, including ball pen, water-color paintbrush, Marking pen, pen, e-Pointer etc..Ball pen, water-color paintbrush structure in, ink is housed, the front end of pen core tube fills in pen core tube There is nib.Ball, which rolls, when writing, in nib drives ink outflow, and person's handwriting is left on paper.

In the prior art, pen tip manufacturing required precision is very high, and qualified pen tip needs to guarantee that ink is smooth when writing Outflow, ink will not flow out when not writing, while also need to guarantee that ball will not deform and fall in prolonged writing process It falls.Currently, the pen tip ball of most domestic needs import, completely domestic pen tip is may still be present as falling pearl, oil leak, writing The problems such as having some setbacks.

In view of problems some present on, applicant is further studied on nib structure.

Utility model content

For the above deficiency in the prior art, the utility model provides a kind of liquid-leakage preventing pen on ball pen Head, makes to write smooth the phenomenon that capable of avoiding ball leakage well.

In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals.

Liquid-leakage preventing nib, including nib pipe, one end of the nib pipe are pen tip, and the front end of the pen tip has ball Chamber is equipped with rotatable ball in the ball chamber, and the ball chamber is communicated with the inner cavity of pen tip, sets in the inner cavity of the nib pipe Flexible part, the lower part of the elastic component is connected with thimble, and the end of the thimble offsets with ball, which is used for thimble pressure To ball.

In the utility model, by the setting of thimble and elastic component, thimble is enable to head on ball, the bullet of elastic component always Power is smaller, but also withstands on ball when not writing in the bound edge portion of ball chamber, seals liquid gap, prevents leakage The phenomenon that occur；When writing, ball is retracted slightly after being under pressure, and ink is completed to write behaviour by going out the outflow of liquid gap at this time Make.

Preferably, under the action of thimble the ball and ball chamber bound edge portion palette, prevent fitting when have There is the phenomenon that generating leakage in gap.

Preferably, the ball chamber is communicated with the inner cavity of pen tip by runner, the thimble pass through after the runner with circle Pearl offsets.

Preferably, the elastic component is spring, the lower end of the spring is connected with thimble.

Preferably, the upper end of the spring is spring fixed end, which is fixed in written pipe, prevents bullet Spring abjection.

Preferably, the diameter of the spring ring of the fixing end is greater than the diameter of the spring ring on spring body, and fixed The coil diameter at end is identical as the written internal diameter of pipe, this is stuck in the fixing end of spring just in written pipe, with interference fit Mode realize fixation.

Preferably, the spring ring closeness in the fixing end is greater than the spring ring closeness on spring body, it is fixed Effect is good.

Preferably, the elastic component is flexible sheet metal, the lower end of the sheet metal is connected with thimble, and structure is simple, It is at low cost, it can also play the role of providing elastic force well.

Preferably, the upper end of the sheet metal is sheet metal fixing end, which is fixed in written pipe.

Preferably, the width of the sheet metal fixing end is greater than the width of sheet metal, and the width of sheet metal fixing end Identical as the internal diameter of written pipe, this is stuck in sheet metal fixing end just in written pipe, realizes fix in an interference fit.

Compared with prior art, the utility model has the following beneficial effects: providing a kind of anti-on ball pen Leakage nib, by the setting of thimble and elastic component, enables thimble to head on ball always, avoids the generation of the phenomenon of leakage； Structure is simple, easy to assembly, and production cost is low.

Detailed description of the invention

Fig. 1 is the schematic diagram of nib pipe with ball cooperation.

Fig. 2 is the schematic diagram that ball is just caught in the pen tip region in ball chamber.

Fig. 3 is the schematic diagram in pen tip region in the prior art.

Fig. 4 is the schematic diagram when pen tip in the utility model is pinching for the first time.

Fig. 5 is schematic diagram when second of pen tip in the utility model is pinching.

Fig. 6 be the utility model in it is pinching after the completion of pen tip schematic diagram.

Fig. 7 is the schematic diagram for the nib that elastic component is spring.

Fig. 8 is the schematic diagram for the tip part of pen that elastic component is spring.

Fig. 9 is the schematic diagram for the nib that elastic component is sheet metal.

Figure 10 is the schematic diagram for the tip part of pen that elastic component is sheet metal.

Figure 11 is the front view of the sheet metal in the utility model.

Figure 12 is the side view of the sheet metal in the utility model.

Figure 13 is the schematic diagram of the straight configuration of the sheet metal in the utility model.

Figure 14 is the schematic diagram of A-A directional profile in Figure 10.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing.

Referring to figs. 1 to Figure 14, one end of liquid-leakage preventing nib, including written pipe 1, the nib pipe 1 is pen tip 2, the pen The front end of point 2 has ball chamber 21, and rotatable ball 5, the inner cavity of the ball chamber 21 and pen tip 2 are equipped in the ball chamber 21 It communicates, is equipped with elastic component in the inner cavity of the nib pipe 1, the lower part of the elastic component is connected with thimble 32, and the end of the thimble 32 It offsets with ball 5, which is used to thimble 32 pressing to ball 5, the ball 5 and ball chamber 21 under the action of thimble 32 211 palette of bound edge portion.In addition, the ball chamber 21 is communicated with the inner cavity of pen tip 2 by runner 22, institute in the application Thimble 32 is stated to offset after the runner 22 with ball 5.

In the utility model, written pipe 1 and pen tip 2 are made of brass material, and the brass material surface after post-production With nickel-phosphorus alloy coating or titanium alloy coating, brass material is easy to process and chip, and production cost is low, nickel-phosphorus alloy coating Or titanium alloy coating keeps nib after molding wear-resisting, long service life, the nickel-phosphorus alloy coating or titanium alloy coating With a thickness of 0.5 μm -0.8 μm.The ball 5 is ball made of tungsten carbide, and property is stablized, and hardness is high.

There are two types of embodiments for elastic component in the application, wherein Fig. 7 and Fig. 8 is the first embodiment, the embodiment party In formula, the elastic component is spring 3, and the lower end of the spring 3 is connected with thimble 32, and the upper end of the spring 3 is spring fixed end 31, The spring fixed end 31 is fixed in written pipe 1；The diameter of the spring ring of the fixing end 31 is greater than the spring on spring body The diameter of circle, and the coil diameter of fixing end 31 is identical as the written internal diameter of pipe 1, the spring ring closeness in fixing end 31 is big In the spring ring closeness on spring body.

Fig. 9 to Figure 13 is the another embodiment in the application, and in the embodiment, the elastic component is flexible Sheet metal 6, the lower end of the sheet metal 6 are connected with thimble 32.Specifically, the upper end of the sheet metal 6 is sheet metal fixing end 61, it should Sheet metal fixing end 61 is fixed in written pipe 1, meanwhile, the width of sheet metal fixing end 61 is greater than the width of sheet metal 6, and gold The width for belonging to piece fixing end 61 is identical as the written internal diameter of pipe 1.

Nib in the utility model withstands thimble under not writing state by the setting of thimble 32 and elastic component The phenomenon that ball 5, ball 5 just closes out liquid gap at this time, prevents leakage generation；When writing, ball 5 is pico- after being under pressure Retraction, ink is completed to write operation by going out the outflow of liquid gap at this time.

In addition, as shown in figure 14, in the nib structure in the present invention, the flowing in order to guarantee ink is smooth and ink is supplied Abundance can be provided with flow path groove 221 on the inner wall of runner 22, increase the circulation of runner 22.

In traditional written production process, only once pinching operation, it is pinching after ball chamber 21 bound edge portion 211 not with Ball 5 is bonded, but there are certain outflows for going out liquid gap and being used for ink, while also avoiding the stuck of ball 5, make ball 5 smooth can roll, but this also causes ball 5 that cannot be bonded well with bound edge portion 211, and ink can flow out, and pass through bullet in time Property part resist ball 5, ball 5 and bound edge portion 211 offset after gap in also have ink outflow.

There is pinching operation twice in written production process in the utility model, pedestal when pinching for the first time is cambered surface base Seat 91, pinching rear bound edge portion 211 and 5 palette of ball, ball 5 is stuck and can not be freely rotated in ball chamber 21 at this time, Then second of progress pinching, pedestal is flat base 92 at this time, specifically there was only 5 stress of ball simultaneously extruded bead chamber 21, makes to justify Pearl chamber 21 is squeezed and deformed the space for producing the rolling of ball 5, and ball 5 can be rolled freely at this time, while also having produced liquid out Gap, it is often more important that bound edge portion 211 and 5 palette structure of ball when ensure that pinching for the first time make ball 5 by elastic component It can be very good to seal when pressing to bound edge portion 211, prevent ink from flowing out.

In addition, traditional nib is made of stainless steel material, although wear-resisting property is good, hardness is high, and difficulty of processing is big.This In invention, nib is made of brass material (preferably H58-3 brass), and brass material difficulty of processing is lower than stainless steel, after molding, Nib made of brass is annealed 1 hour at a temperature of 300 DEG C, after annealing material soften, then carry out process for electroplating of nickel-phosphorus alloy or The plating of person's titanium alloy, coating are 0.5 μm -0.8 μm, and written surface abrasion resistance is good at this time.Facilitate pinching operation after annealing, especially It is the extrusion operation for facilitating pinching second.After the completion of pinching, the width for going out liquid gap on pen tip is 10 μm -40 μm, energy Aqueous and oil-based ink outflow is enough adapted to, and cost is only the one third of stainless steel material.

Finally, after nib is integrally formed, then be heat-treated: pen tip is heat-treated 3 hours at 200 DEG C, improves pen tip Hardness, be improved particularly the hardness of the outside of liquid outlet, so that it will not deform, written hardness reaches 58-60HRC after processing, firmly Degree is high,

The above, the utility model provide a kind of liquid-leakage preventing nib on ball pen, pass through thimble and elasticity The setting of part, enables thimble to head on ball always, avoids the generation of the phenomenon of leakage；Structure is simple, easy to assembly, is produced into This is low, is the one third effect of traditional stainless fountain pen nib cost, while easy to process.

The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within The protection scope of the utility model.

Claims (10)

1. liquid-leakage preventing is written, including nib pipe (1), one end of the nib pipe (1) is pen tip (2), the front end of the pen tip (2) With ball chamber (21), rotatable ball (5) are equipped in the ball chamber (21), the ball chamber (21) is interior with pen tip (2) Chamber communicates, which is characterized in that it is equipped with elastic component in the inner cavity of the nib pipe (1), the lower part of the elastic component is connected with thimble (32), And the end of the thimble (32) offsets with ball (5), which is used to thimble (32) pressing to ball (5).

2. liquid-leakage preventing nib according to claim 1, which is characterized in that the ball (5) under the action of thimble (32) With bound edge portion (211) palette of ball chamber (21).

3. liquid-leakage preventing nib according to claim 1, which is characterized in that the inner cavity of the ball chamber (21) and pen tip (2) It is communicated by runner (22), the thimble (32) passes through the runner (22) and offsets afterwards with ball (5).

4. liquid-leakage preventing nib according to any one of claims 1 to 3, which is characterized in that the elastic component is spring (3), The lower end of the spring (3) is connected with thimble (32).

5. liquid-leakage preventing nib according to claim 4, which is characterized in that the upper end of the spring (3) is spring fixed end (31), which is fixed in nib pipe (1).

6. liquid-leakage preventing according to claim 5 nib, which is characterized in that the spring ring of the spring fixed end (31) it is straight Diameter is greater than the diameter of the spring ring on spring body, and the internal diameter of the coil diameter of spring fixed end (31) and nib pipe (1) It is identical.

7. liquid-leakage preventing nib according to claim 6, which is characterized in that the spring ring on the spring fixed end (31) is close Intensity is greater than the spring ring closeness on spring body.

8. liquid-leakage preventing nib according to any one of claims 1 to 3, which is characterized in that the elastic component is flexible Sheet metal (6), the lower end of the sheet metal (6) are connected with thimble (32).

9. liquid-leakage preventing nib according to claim 8, which is characterized in that the upper end of the sheet metal (6) is solid for sheet metal Fixed end (61), the sheet metal fixing end (61) are fixed in nib pipe (1).

10. liquid-leakage preventing nib according to claim 9, which is characterized in that the width of the sheet metal fixing end (61) is big Width in sheet metal (6), and the width of sheet metal fixing end (61) is identical as the nib pipe internal diameter of (1).