Novel front positioning refill

Abstract

The utility model relates to the technical field of stationery, and particularly discloses a novel front positioning refill which comprises a pen point used for writing and an oil pipe used for storing ink, the outer side of the oil pipe is sleeved with a pen holder, one end of the pen holder is a fixing part, an inner hole is formed in the fixing part, and the pen point comprises a metal pen point and a connecting piece. The end, close to the pen point, of the connecting piece is a head portion, the end, away from the pen point, of the connecting piece is a tail portion, the head portion is provided with a groove allowing the metal pen point to be embedded, the tail portion is provided with a through hole allowing ink to enter, the through hole is communicated with the groove, an annular groove is formed between the head portion of the connecting piece and the top wall of the ink pipe, and the annular groove is used for being clamped with the fixing portion. The novel front positioning refill has the advantages of being convenient to assemble and low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stationery supplies, in particular to a novel front-positioning refill. BACKGROUND

[0002] As an important tool for daily writing, the structural design of the water-based ball pen is crucial to the writing experience. According to the positioning mode of the pen tip, the structure of the water-based ball pen is mainly divided into two types: front-positioning type and rear-positioning type.

[0003] The existing front-positioning refill is generally made by directly inserting a full-metal pen tip at one end of the ink tube, and the ink is transported to the ball through the ink channel in the pen tip, and then the ink is evenly applied on the paper through the rolling of the cylinder to achieve smooth writing. During assembly, the assembly is completed by the engagement of the groove on the pen tip with the pen mouth.

[0004] However, the use of a relatively precise machine tool is required to open a groove on the metal pen tip, and the use of the machine tool to process the pen tip significantly increases the production cost. There are also some pen tips on the market that use a plastic link to connect the ink tube once to reduce costs, but the diameter of the plastic link is relatively large, which is not convenient for automatic assembly. CONTENT OF THE INVENTION

[0005] In order to reduce costs and facilitate assembly, the present application provides a novel front-positioning refill.

[0006] The novel front-positioning refill provided by the present application adopts the following technical solution:

[0007] A novel front-positioning refill includes a pen tip for writing and an ink tube for storing ink, the ink tube is sleeved with a pen barrel on the outside, one end of the pen barrel is a fixed part, the fixed part is provided with an inner hole, the pen tip includes a metal pen tip and a link, the link is provided with a head part near one end of the pen tip and a tail part away from one end of the pen tip, the head part is provided with a groove for embedding the metal pen tip, the tail part is provided with a through hole for the ink to enter, the through hole is in communication with the groove, and the head part of the link and the top wall of the ink tube form a ring groove, which is used for engaging with the fixed part.

[0008] By adopting the above technical solution, the metal pen tip of the pen tip is embedded in the groove, and a stable connection is formed with the ink tube, avoiding loosening and falling off, prolonging the service life of the pen tip, and improving the writing stability. The groove of the link realizes the detachable installation of the metal pen tip, so that it can be adapted to a variety of different metal pen tips, and has better applicability.

[0009] Optionally, the head part of the link is a guide surface, the diameter of the head part gradually increases away from the side of the pen tip, and the outer diameter of the link is smaller than the diameter of the ink tube.

[0010] By adopting the technical scheme, the guide surface can effectively guide the link member to enter the inner hole of the fixing portion, thereby facilitating the assembly between the refill and the pen barrel.

[0011] Optionally, the diameter of the groove is greater than the diameter of the through hole.

[0012] By adopting the technical scheme, the diameter of the through hole is smaller than the diameter of the groove, the ink can slowly enter the groove and then be output to the paper surface by the metal pen point, so that the ink is not easy to leak during writing, and the ink storage efficiency is improved.

[0013] Optionally, the ring groove width is 1-3 mm.

[0014] By adopting the technical scheme, the ring groove with a width of 1-3 mm can be adapted to pen barrels of different sizes, thereby facilitating the clamping of the fixing portion of the pen barrel and the ring groove, and improving the applicability of the link member.

[0015] Optionally, the tail portion of the link member is provided with a rounded corner near one end of the oil pipe.

[0016] By adopting the technical scheme, when the link member is connected with the oil pipe, the rounded corner is arranged at the tail portion, thereby facilitating the positioning and insertion of the tail portion of the link member into the oil pipe, and improving the installation efficiency.

[0017] Optionally, the diameter of the head portion of the link member near one end of the oil pipe is greater than the inner hole diameter of the fixing portion.

[0018] By adopting the technical scheme, when writing, the head portion of the link member abuts against the end portion of the pen barrel, so that the refill does not retract during writing, and the smoothness and stability during writing are ensured.

[0019] Optionally, the diameter of the oil pipe is greater than the inner hole diameter of the fixing portion.

[0020] By adopting the technical scheme, when the refill is assembled with the pen barrel, the refill is pushed into the pen barrel, and the end portion of the oil pipe near the pen point abuts against the fixing portion, thereby achieving the function of limiting the advance of the refill, and facilitating the assembly.

[0021] Optionally, the link member is made of plastic material.

[0022] By adopting the technical scheme, the use of plastic material to manufacture the link member can effectively reduce the production cost, and compared with a full-metal pen point, the use of plastic link member and metal pen point has lower material cost; and the plastic link member is simpler and more convenient to process.

[0023] In summary, the present application has the following beneficial effects:

[0024] 1. By setting the link member of plastic material and metal pen head, it is convenient to assemble, compared with the full metal pen point, the material cost of using plastic link member and metal pen head is lower; the plastic link member replaces a part of the metal pen point,

[0025] 2. By setting the groove on the link member, the metal pen head can be fixed on the link member through the groove, the groove can realize the detachable installation of the metal pen head, so as to adapt to a variety of different metal pen heads, and has better applicability. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structure diagram of the novel positioning refill of the embodiment of the application;

[0027] Figure 2 is an exploded diagram of the novel positioning refill of the embodiment of the application after being sleeved with the pen barrel;

[0028] Figure 3 is a structure diagram of the link member of the embodiment of the application;

[0029] Figure 4 is a sectional view of the novel positioning refill of the embodiment of the application after being sleeved with the pen barrel.

[0030] Explanation of reference signs: 1, pen point; 11, metal pen head; 12, link member; 121, head part; 1211, groove; 1212, guide surface; 122, tail part; 1221, through hole; 1222, round corner; 123, ring groove; 2, oil pipe; 3, pen barrel; 31, fixed part; 311, inner hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings Figures 1-4 The application is further described in detail.

[0032] The embodiment of the application discloses a novel front positioning refill. Referring to Figure 1 , Figure 2 The novel front positioning refill comprises a pen point 1 for writing and an oil pipe 2 for storing ink, the pen point 1 is installed at one end of the oil pipe 2, and a ball is arranged in the pen point 1 for helping ink to flow out uniformly. In use, the pen point 1 is pressed onto paper, and the ball rolls to uniformly take out the ink stored in the oil pipe 2, to form a coherent line, thereby realizing the function of writing.

[0033] Referring to Figure 2 , Figure 3, the pen tip 1 comprises a link piece 12 and a metal pen head 11 embedded in one end of the link piece 12, the link piece 12 is provided with a head portion 121 close to one end of the pen tip 1 and a tail portion 122 away from one end of the pen tip 1, the tail portion 122 is used for being inserted into the oil pipe 2, the head portion 121 is provided with a groove 1211 for embedding the metal pen head 11, and the tail portion 122 is provided with a through hole 1221 for the ink to enter, and the through hole 1221 is communicated with the groove 1211. During assembly, the metal pen head 11 is first embedded into the groove 1211 of the link portion, and then the tail portion 122 of the link piece 12 is inserted into the oil pipe 2, so that the assembly is completed, the process is simple and convenient, and automatic assembly is facilitated; the ink in the oil pipe 2 enters the link piece 12 through the through hole 1221, and then enters the groove 1211 and flows out to the paper surface through the metal pen head 11, the metal pen head 11 of the pen tip 1 is embedded in the groove 1211, and forms a stable connection with the oil pipe 2, so that loosening and falling are avoided, the service life of the pen tip 1 is prolonged, and the writing stability is improved; the groove 1211 of the link piece 12 can adapt to various different metal pen heads 11, and has better applicability.

[0034] With reference to Figure 2 , Figure 3 and Figure 4 , the diameter of the groove 1211 is greater than the diameter of the through hole 1221, so that when the ink enters the pen tip 1 from the oil pipe 2, the ink enters the metal pen head 11 through the through hole 1221 and cannot overflow from the two sides of the metal pen head 11, so that the ink is not easy to leak during writing, the smoothness and stability during writing are ensured, and the ink storage efficiency is improved.

[0035] With reference to Figure 2 , Figure 3 and Figure 4 , the link piece 12 is made of plastic material, and in the embodiment of the application, the plastic material is preferably PP material. The link piece 12 made of plastic material can effectively reduce the material cost, the processing of the plastic material is more simple and convenient compared with metal material, and the pen tip 1 made of plastic material is more light, so that the overall weight of the pen is reduced and fatigue is not easy to occur during long-time holding.

[0036] With reference to Figure 2 , Figure 3 and Figure 4 , the link piece 12 is formed with a ring groove 123 between the head portion 121 and the top wall of the oil pipe 2, the width of the ring groove 123 is 1-3 mm, one end of the pen barrel 3 is provided with a fixed portion 31, and the fixed portion 31 is provided with an inner hole 311 for clamping the link piece 12. After the pen core is inserted into the pen barrel 3, the fixed portion 31 can clamp the ring groove 123, so that the pen core is no longer moved, and the width of the ring groove 123 is set to 1-3 mm, so that the link piece 12 can be adapted to various different sizes of pen barrels 3, and the flexibility and applicability of the link piece 12 are improved.

[0037] With reference to Figure 2 , Figure 3 andFigure 4 The head 121 of the link piece 12 has a guide surface 1212, and the diameter of the head 121 of the link piece 12 gradually increases away from the side of the pen tip 1, and the outer diameter of the link piece 12 is smaller than the diameter of the oil pipe 2. When the refill is assembled with the pen barrel 3, the refill is pushed into the inner hole 311 of the fixed part 31, and at this time, the guide surface 1212 is in contact with the hole wall of the inner hole 311. Since the link piece 12 is made of plastic material, it has a certain flexibility, so that the guide surface 1212 can guide the head 121 of the link piece 12 to be squeezed into the inner hole 311, facilitating the assembly of the refill and the pen barrel 3, and effectively improving the installation efficiency.

[0038] Referring to Figure 2 , Figure 3 and Figure 4 , the diameter of the oil pipe 2 is greater than the diameter of the inner hole 311 of the fixed part 31. When assembling, the refill is pushed into the pen barrel 3, and after the ring groove 123 is clamped by the fixed part 31, the end of the oil pipe 2 close to the pen tip 1 will abut against the bottom wall of the fixed part 31, at which time it cannot continue to advance, thereby achieving the function of limiting the advance of the refill, facilitating automatic assembly.

[0039] Referring to Figure 2 , Figure 3 and Figure 4 , the tail 122 of the link piece 12 is provided with a rounded corner 1222 close to the end of the oil pipe 2. When connecting the link piece 12 and the oil pipe 2, the tail 122 needs to be inserted into the oil pipe 2, and the rounded corner 1222 can effectively help the tail 122 to be positioned, and facilitate the insertion of the tail 122 into the oil pipe 2, improve the installation efficiency, and facilitate automatic assembly.

[0040] Referring to Figure 2 , Figure 3 and Figure 4 , the diameter of the head 121 of the link piece 12 close to the end of the oil pipe 2 is greater than the diameter of the inner hole 311 of the fixed part 31. During writing, since the diameter of the head 121 is greater than the diameter of the inner hole 311, the head 121 of the link piece 12 will abut against the end of the pen barrel 3, so that the refill will not retract during writing, ensuring the smoothness and stability during writing.

[0041] The implementation principle of the new front positioning refill is as follows: during assembly, the metal pen tip 11 is inserted into the groove 1211 of the link piece 12, and then the tail 122 of the link piece 12 is aligned with the pipe opening of the oil pipe 2, and the link piece 12 is pushed into the oil pipe 2, at which time the assembly of the refill is completed, and then the refill is pushed from the rear of the pen barrel 3, so that the head 121 of the link piece 12 passes out of the inner hole 311 of the fixed part 31, and the ring groove 123 is clamped with the fixed part 31, at which time the overall assembly is completed. The process is convenient and fast, and facilitates automatic assembly.

[0042] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A new front-positioning refill, comprising a writing tip (1) and an ink tube (2) for storing ink, an outer side of the ink tube (2) being sleeved with a pen barrel (3), one end of the pen barrel (3) being a fixed part (31), the fixed part (31) being provided with an inner hole (311), characterized in that: The pen tip (1) comprises a metal pen head (11) and a link member (12), the link member (12) has a head part (121) near one end of the pen tip (1) and a tail part (122) away from the other end of the pen tip (1), the head part (121) is provided with a recess (1211) for embedding the metal pen head (11), the tail part (122) is provided with a through hole (1221) for ink to enter, the through hole (1221) is communicated with the recess (1211), and the head part (121) of the link member (12) and the top wall of the oil pipe (2) form a ring groove (123), the ring groove (123) is used for clamping the fixed part (31).

2. The new front positioned refill according to claim 1 characterized in that: The side wall of the head part (121) of the link member (12) is a guide surface (1212), the diameter of the head part (121) gradually increases away from the side of the pen tip (1), and the outer diameter of the link member (12) is smaller than the diameter of the oil pipe (2).

3. The new front positioned refill according to claim 1 characterized in that: The diameter of the recess (1211) is greater than the diameter of the through hole (1221).

4. The new front positioned refill according to claim 1 characterized in that: The width of the ring groove (123) is 1-3 mm.

5. The new front positioned refill according to claim 1 characterized in that: The tail part (122) of the link member (12) is provided with a round corner (1222) near one end of the oil pipe (2).

6. The new front positioned refill according to claim 1 characterized in that: The diameter of the head part (121) of the link member (12) near one end of the oil pipe (2) is greater than the diameter of the inner hole (311) of the fixed part (31).

7. The new front positioned refill according to claim 1 characterized in that: The diameter of the oil pipe (2) is greater than the diameter of the inner hole (311) of the fixed part (31).

8. The new front positioned refill according to claim 1 characterized in that: The link member (12) is made of plastic.

Images