Corner two-way head and hose refill

Abstract

The corner two-way head comprises a main body part, one end of the main body part is provided with a first connecting column, the side face of the main body part is provided with a second connecting column, the first connecting column is used for being connected with a refill tube, and the second connecting column is used for being connected with a pen point. A corner is formed between the axis of the first connecting column and the axis of the second connecting column, an oil channel is formed in the corner two-way head, and the oil channel penetrates through the first connecting column and the second connecting column. By adopting the corner two-way head, stable connection between the soft refill tube and the pen point can be realized, and meanwhile, the phenomenon of ink leakage or unsmooth ink discharge caused by excessive deformation of the hose at the connecting part due to extrusion can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a finger pen technical field, concretely relates to a corner two -way head and hose refill. BACKGROUND

[0002] The finger pen refill pipe in the prior art is mostly designed as spiral, L type or U type, and is mostly curved structure, taking a finger around finger type finger pen as an example, the refill pipe of the finger pen usually has two parts, one part is a spiral pipe section, the spiral pipe section is gradually gathered to the center at the first end, the other part is a straight line pipe section formed by bending the first end of the spiral pipe section, and the pen point steel head is installed at the end of the straight line pipe section.

[0003] As for the finger pen design scheme already published, the refill pipe of the curved structure mostly needs to be produced by hard material, however, if the hard pipe material of the required style is to be made, only the blow molding or secondary forming mode can be used to mass produce according to the present technology, and the process difficulty and production cost of the two production modes are relatively high.

[0004] In order to solve the above problems, the applicant proposes a design scheme of soft hose refill, and the process difficulty and production cost disadvantages of hard special-shaped refill pipe can be well overcome by using the soft hose. When the soft hose refill design scheme is used, many technical problems will be faced, taking the spiral refill of the finger around finger type finger pen as an example, since the soft hose is spirally coiled, the pen point is located on the spiral center line of the soft hose, how to realize the stable connection between components in a small space, how to avoid the ink leakage phenomenon when the centrifugal refill pipe is deaerated after ink injection, how to avoid the ink breakage phenomenon during normal writing, how to position the spiral hose, how to ensure the smooth assembly and disassembly between components, etc. will become the implementation problems to be faced. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems, and provides a corner two-way head and soft hose refill, the stable connection between the soft refill pipe and the pen point steel head is realized by using the corner two-way head, and the phenomenon that the soft hose is excessively deformed due to extrusion can be avoided at the connecting part, so that the ink leakage or ink discharge difficulty phenomenon is avoided.

[0006] The utility model realizes the following technical scheme:

[0007] The utility model provides a kind of corner two-way head, including main part, the one end of the main part is provided with first connecting column, the side of the main part is provided with second connecting column, the first connecting column is used to be connected with refill pipe, the second connecting column is used to be connected with nib, the axis between the first connecting column and the second connecting column has corner, the corner two-way head has oil channel, the oil channel is through the first connecting column and the second connecting column.

[0008] As a preferred scheme of the utility model, the corner two-way head includes hose clasp ring, the hose clasp ring is used to fix the refill pipe sleeved on the first connecting column.

[0009] As a preferred scheme of the utility model, the outer wall of the first connecting column has multiple first annular protrusions, the inner wall of the hose clasp ring has multiple second annular protrusions, and the first annular protrusion and the second annular protrusion are staggered in the axial direction.

[0010] As a preferred scheme of the utility model, the distance between each second annular protrusion in the hose clasp ring and the outlet surface on both sides of the hose clasp ring is equal.

[0011] As a preferred scheme of the utility model, the side of the main part is provided with first butt head, the first butt head and the second connecting column are coaxially arranged opposite.

[0012] As a preferred scheme of the utility model, the main part is further provided with second butt head, and the second butt head is arranged at the opposite end of the first connecting column.

[0013] As a preferred scheme of the utility model, the end face of the second connecting column is concave to form a fixing hole for installing nib, and the fixing hole is in communication with the oil channel.

[0014] As a preferred scheme of the utility model, the angle value between the axis of the first connecting column and the second connecting column is 30°-90°.

[0015] The second aspect provides a kind of hose refill, including refill pipe, nib and the corner two-way head as described in the first aspect, the refill pipe is hose, the refill pipe is installed on the first connecting column by hose clasp ring, and the nib is installed on the second connecting column.

[0016] As a preferred scheme of the utility model, the refill pipe is made of soft plastic or soft glue.

[0017] Compared with prior art, the utility model has the following advantages and beneficial effects:

[0018] 1、the first connecting column of the corner two-way head in the utility model is used for installing the refill tube, the second connecting column is used for installing the pen point, because the first connecting column and the second connecting column have the corner between the axes, the angle deflection connection of the refill tube and the pen point can be realized in the limited space, the bending amplitude value of the bending part of the refill tube is reduced, the stable connection of the soft refill tube and the pen point steel head can be realized by using the corner two-way head, the phenomenon of ink leakage or ink unsmooth can be avoided by the over-deformation of the hose at the connecting part, and further the phenomenon of ink leakage or ink unsmooth can be avoided by the over-deformation of the hose at the connecting part;

[0019] 2、the soft hose refill adopts the soft refill tube, can be coiled in the pen shell during assembly, and is matched with the corner two-way head, realizes the angle deflection connection of the refill tube and the pen point, reduces the bending amplitude value of the bending part of the refill tube, the number of the whole used accessories is small, the required space is small, the design scheme of the corner two-way head and the hose can not only simplify the production and manufacturing process, but also can reduce the production cost of the whole finger pen. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the exemplary embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without the creative labor.In the drawings:

[0021] Figure 1 It is the explosion schematic view of the corner two-way head in the utility model;

[0022] Figure 2 It is the cross-sectional schematic view of the corner two-way head in the utility model;

[0023] Figure 3 It is the schematic view of the soft hose refill in the utility model.

[0024] The marks in the drawings and the corresponding names of parts are as follows:

[0025] 1-corner two-way head, 11-main body, 12-first connecting column, 121-first annular protrusion, 13-second connecting column, 14-oil channel, 15-hose clasp, 151-second annular protrusion, 16-first butt joint punch, 17-fixing hole, 18-second butt joint punch, 2-refill tube, 3-pen point. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer and more understandable, the utility model will be further described in detail below in combination with embodiments and drawings, the schematic implementation mode and the description thereof of the utility model are only used for explaining the utility model, and do not serve as the limitation of the utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application; the use of the terms "including", "comprising" and "having" and any variations thereof in the specification and in the claims and the description herein is intended to cover both the inclusive and the exclusive cases.

[0028] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0029] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate. It is further understood that the description in connection with the embodiments is intended to cover any and all variants of these embodiments which will become apparent to those skilled in the art as pertains to the application.

[0030] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing, A and B existing, and B existing. In addition, the character " / " in the text generally represents an "or" relationship between the front and rear associated objects.

[0031] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, the detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0032] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces), unless otherwise explicitly specified.

[0033] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] Embodiment 1

[0036] Please refer to Figure 1 and Figure 2 In the embodiments of the present application, a corner two-way head 1 is provided, which comprises a main body part 11, one end of the main body part 11 is provided with a first connecting column 12, the side surface of the main body part 11 is provided with a second connecting column 13, the first connecting column 12 is used to connect with a pen core tube 2, the second connecting column 13 is used to connect with a pen nib 3, the axis line between the first connecting column 12 and the second connecting column 13 has a corner angle a, the corner two-way head 1 has an oil channel 14 inside, the oil channel 14 penetrates through the first connecting column 12 and the second connecting column 13.

[0037] The main body part 11 in the embodiment is cylindrical, the first connecting column 12 is located at one end of the main body part 11 and coaxially arranged with the main body part 11, the pen core tube 2 can be sleeved on the first connecting column 12 and a lap joint section is formed therebetween. The second connecting column 13 is located on the outer wall of the main body part 11, and the axis line thereof has an included angle a with the axis line of the main body part 11. The tail part of the pen nib 3 is fixedly installed in the second connecting column 13, and since the corner two-way head 1 has the oil channel 14 inside, the ink in the pen core tube 2 can flow to the pen nib 3 through the oil channel 14.

[0038] The smaller the angle value a between the axis of the first connecting column 12 and the second connecting column 13, the more conducive to reducing the bending amplitude value of the cartridge tube 2 bending part. In the limited space range in the finger pen, the smaller the bending amplitude value of the cartridge tube 2 bending part, the more conducive to relieving the hose extrusion deformation amplitude of the cartridge tube 2 bending part, and then relieving the probability of ink leakage or ink flow.

[0039] According to some embodiments of the application, the corner two-way connector 1 comprises a hose clasp 15 for fixing the cartridge tube 2 sleeved on the first connecting column 12. When assembling the cartridge, the cartridge tube 2 can be sleeved on the first connecting column 12 first, and then the hose clasp 15 is sleeved on the cartridge tube 2, and the cartridge tube 2 is stably fixed on the first connecting column 12 by the hose clasp 15, so as to realize the reinforcement treatment of the lap joint position of the cartridge tube 2 and the first connecting column 12, and then the ink can be prevented from overflowing from the lap joint part due to the forced extrusion deformation of the hose during centrifugation in the process of removing the ink air bubbles by high-speed centrifugation after the cartridge is filled with ink. At the same time, the hose clasp 15 can also limit the deformation of the hose segment located in the hose clasp 15 when the cartridge tube 2 is bent, thereby improving the bendable amplitude value of the cartridge tube 2 bending part under the premise of ensuring no ink leakage.

[0040] According to some embodiments of the application, the outer wall of the first connecting column 12 has a plurality of first annular protrusions 121, the inner wall of the hose clasp 15 has a plurality of second annular protrusions 151, and the first annular protrusions 121 and the second annular protrusions 151 are arranged in the axial direction. By setting the two kinds of annular protrusions, the hose can be extruded after the cartridge components are assembled, so as to realize the fixing effect of the lap joint part, thereby preventing the hose from falling off and ink leakage. Since the hose itself has a certain elasticity, the tightness can be adjusted by adjusting the protrusion value of the annular protrusion.

[0041] According to some embodiments of the application, preferably, the distance between each second annular protrusion 151 in the hose clasp 15 and the two side outlet faces of the hose clasp 15 is equal. The reason is that when installing the hose clasp 15, the front and rear abutment positions do not need to be found, and the alignment workload during clamping can be directly saved.

[0042] According to some embodiments of the application, the side surface of the main body part 11 is provided with a first abutment punch 16, and the first abutment punch 16 and the second connecting column 13 are coaxially arranged. Since the pen tip 3 is installed on the second connecting column 13, by setting the first abutment punch 16 in the corresponding straight line direction of the pen tip 3, the positioning of the corner two-way connector 1 and the pen tip 3 in the pen shell can be assisted, and at the same time, the first abutment punch 16 can also be used as a mechanical thimble receiving surface when the pen tip 3 is installed by a machine.

[0043] According to some embodiments of the present application, the main body 11 is further provided with a second connecting punch 18 arranged at the end opposite to the first connecting column 12. The second connecting punch 18 is used to assist the positioning of the corner two-way head 1 and the pen point 3 in the pen shell, and is used as a mechanical needle bearing surface.

[0044] According to some embodiments of the present application, the end surface of the second connecting column 13 is concave and has a fixing hole 17 for mounting the pen point 3, and the fixing hole 17 is in communication with the oil channel 14. When assembling, the pen point 3 is inserted into the fixing hole 17 to limit the overlap. A stepped surface is arranged at the position where the bottom of the fixing hole 17 overlaps the oil channel 14, which can limit and stop the pen point 3 when the pen point 3 is inserted into the fixing hole 17.

[0045] According to some embodiments of the present application, the angle a between the axis of the first connecting column 12 and the second connecting column 13 is in the range of 30°-90°. For different configurations of the finger pen, the optimal angle range of the angle a is actually different. Taking a finger around the finger type finger pen as an example, the optimal angle value of the angle a between the axis of the first connecting column 12 and the second connecting column 13 is between 45°-75°. Although the smaller the angle value a, the smaller the bending amplitude value of the bending part of the pen core tube 2, the angle value a is actually limited by the distance from the finger tip to the pen point. The smaller the angle value a, the smaller the space size value for placing the pen core from the finger tip to the pen point, and in order to ensure sufficient pen core space, the distance value from the finger tip to the pen point will increase. The larger the distance from the finger tip to the pen point, the smaller the touch feeling during writing. The optimal distance from the finger tip to the pen point is different due to the basic configuration of the finger pen and the size of the palm of different people. Therefore, the angle value a is actually affected by the space size value for placing the entire pen core and the bending amplitude value of the bending part of the pen core tube 2, and is not better the larger or the smaller. There are six basic configurations of finger pens, and the optimal angle range value can be determined only after the basic configuration of the finger pen is determined.

[0046] It should be noted that the main body 11, the first connecting column 12, the second connecting column 13, and the first connecting punch 16 and the second connecting punch 18 on the corner two-way head 1 are integrally formed as one structure.

[0047] Embodiment 2

[0048] Please refer to Figures 1 to 3The soft tube refill provided in the embodiments of the present application comprises a refill tube 2, a pen point 3 and the corner two-way connector 1 as described in Embodiment 1. The refill tube 2 is a soft tube, and is installed on the first connecting column 12 through the soft tube clasp 15. The pen point 3 is installed on the second connecting column 13.

[0049] The soft tube refill in the embodiments adopts a soft refill tube 2, which can be coiled in the pen shell during assembly and cooperates with the corner two-way connector 1 to realize the large-angle deflection connection of the refill tube 2 and the pen point 3 in a small space, thereby reducing the bending amplitude value of the bending part of the refill tube 2. This can not only simplify the production and manufacturing process, but also reduce the production cost of the entire stylus pen.

[0050] According to some embodiments of the present application, the refill tube 2 can be made of soft plastic or soft glue. The specific material of the refill tube 2 can be PVC, PU, PE, PP, etc., which is not limited here.

[0051] According to some embodiments of the present application, the thickness value of the tube wall of the refill tube 2 and the soft and hard attribute value of the material used must be moderate. Because too thin is easy to break, too thick affects the bending of the soft tube, too soft is easy to fall off, and too hard is not easy to bend.

[0052] It is additionally explained that the optimal aperture value of the refill tube 2 will actually be different with different basic configurations of the stylus pen and different types of pens. Taking the embodiments shown in the present application as an example, Figure 2 and Figure 3The finger pen refill shown in the figure is a finger pen refill of a one-finger winding type neutral pen or ball pen, the outer diameter of the refill tube 2 is 2.5-5mm, and the tube wall thickness is 0.5-1mm. Preferably, the outer diameter of the refill tube 2 is 4mm, the tube wall thickness is 0.75mm, and the inner diameter value is 2.5mm. The hose of such size can provide sufficient thickness value and toughness value while ensuring sufficient softness, and ready-made finished hose can be directly found on the market. The smaller the outer diameter value of the refill tube 2, the smaller the overall outer diameter value of the one-finger winding type finger pen, and the more comfortable it is to hold the pen and write. The reason why only the outer diameter value of 4mm of the refill tube 2 is set is that the total length of the spiral tube is actually slightly longer than the length of the refill tube of the straight tube type pen commonly used today after being lengthened. According to the calculation, even if the inner diameter value of the hose refill tube 2 is slightly smaller than the inner diameter value of the refill tube of the straight tube type pen, the total ink carrying capacity will still be slightly larger than the ink carrying capacity in the refill of the straight tube type pen with an outer diameter of 4.5mm and an inner diameter of 3mm. When the type of the pen is a marker pen, the outer diameter value of the refill tube 2 is still 4mm, and the tube wall thickness can be adjusted to 0.1mm, at which time the inner diameter value will be expanded to 3.8mm, thereby facilitating the built-in ink absorbing sponge. With the decrease of the tube wall thickness value, the inter-tube distance value of the spiral tube can be adjusted to be small, and the upper limit value of the spiral turns is increased, and the upper limit value of the ink carrying capacity is naturally increased.

[0053] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and does not limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A corner two-way connector, characterized in that, The device includes a main body, one end of which is provided with a first connecting post, and the side of which is provided with a second connecting post. The first connecting post is used to connect with the pen refill tube, and the second connecting post is used to connect with the pen tip. There is an angle between the axes of the first connecting post and the second connecting post. The angle two-way connector has an oil passage that runs through the first connecting post and the second connecting post.

2. The corner two-way connector according to claim 1, characterized in that, The angled two-way connector includes a hose retainer, which is used to fix the pen refill tube sleeved on the first connecting post.

3. The corner two-way connector according to claim 2, characterized in that, The outer wall of the first connecting post has multiple first annular protrusions, and the inner wall of the hose clamp has multiple second annular protrusions, with the first annular protrusions and the second annular protrusions being staggered in the axial direction.

4. The corner two-way connector according to claim 2, characterized in that, The distance between each second annular protrusion in the hose clamp and the outlet surfaces on both sides of the hose clamp is equal.

5. The corner two-way connector according to claim 1, characterized in that, The main body is provided with a first docking punch on its side, and the first docking punch and the second connecting post are arranged coaxially opposite each other.

6. The corner two-way connector according to claim 5, characterized in that, The main body is also provided with a second docking punch, which is arranged at the end opposite to the first connecting post.

7. The corner two-way connector according to claim 1, characterized in that, The end face of the second connecting post is recessed to form a fixing hole for mounting a pen tip, and the fixing hole is connected to the oil passage.

8. The corner two-way connector according to claim 1, characterized in that, The rotation angle between the axes of the first connecting post and the second connecting post is 30°-90°.

9. A flexible pen refill, characterized in that, It includes a pen refill tube, a pen tip, and a corner two-way connector as described in any one of claims 1-8, wherein the pen refill tube is a flexible tube, the pen refill tube is mounted on the first connecting post via a flexible tube retainer, and the pen tip is mounted on the second connecting post.

10. The flexible pen refill according to claim 9, characterized in that, The pen refill tube is made of soft plastic or soft rubber.

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