Multi-core writing pen

Abstract

The utility model discloses a multi-core writing pen. The multi-core writing pen comprises a pen holder, the pen holder comprises a rod body, a rotating head, a connecting piece and a plurality of sliding buttons, a mounting opening is formed in the first end of the rod body, and a plurality of sliding grooves are formed in the second end of the rod body; the connecting piece is arranged in the mounting opening, and the sliding button is arranged in the corresponding sliding groove in a sliding mode; the rotating head is rotatably arranged on the connecting piece, an in-out hole is formed in the rotating head and eccentrically formed in one side of the axis of the rotating head, and a rotating driving part is further arranged on the inner wall of the rotating head; the refills are inserted into the rod body and are connected to the corresponding sliding buttons; wherein the rotary driving part is configured to be abutted by the refill to drive the rotary head to rotate on the penholder and guide a pen point of the refill to be inserted into the access hole, and the access hole is configured to allow the pen point of the refill to extend out of the rotary head. The use reliability of the multi-core writing pen and the use experience of a user are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a multi -core writing pen. BACKGROUND

[0002] The pen (such as stationery writing pen or eyeliner or eye shadow) with multiple cores is widely used because different cores can be switched in a single pen as needed, such as the multi-core writing pen disclosed in Chinese patent publication No. CN117465159A or the multi-core writing pen disclosed in Chinese patent publication No. CN113243652A. In use, the core needs to be guided by the arc surface of the rotating head and bent to extend out of the import and export of the central part of the rotating head during the process of switching different cores to extend to the outside of the rotating head. During use, because the core is in a bent state, the core is prone to shaking in the pen barrel due to the force on the head of the core, affecting user experience and use reliability. In view of this, how to design a technology that improves use reliability to improve user experience is the technical problem to be solved by the utility model. SUMMARY

[0003] The utility model provides a kind of multi-core writing pen, realize the use reliability and user experience of multi-core writing pen are improved.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of multi-core writing pen, comprising:

[0006] Pen barrel, the pen barrel includes stem, rotating head, connecting piece and multiple sliding buttons, the first end part of the stem forms installation mouth, and the second end part of the stem is provided with multiple sliding slots;The connecting piece is arranged in the installation mouth, and the sliding button is slidably arranged in the corresponding sliding slot;The rotating head is rotatably arranged on the connecting piece, and the rotating head is provided with import and export hole, and the import and export hole is eccentrically arranged on the one side of the axis of the rotating head, and the inner wall of the rotating head is further provided with rotating drive part;

[0007] Multiple cores, the core is inserted in the stem and is connected on the corresponding sliding button;

[0008] Spring, the spring is located in the stem and is configured to exert elastic force on the core or the sliding button;

[0009] Wherein, the rotating drive part is configured to be abutted by the core to drive the rotating head to rotate on the connecting piece and guide the nib of the core to be inserted into the import and export hole;

[0010] The import and export hole is configured to extend the nib of the core to the outside of the rotating head.

[0011] The technical solution of this utility model has the following technical effects compared with the prior art: By providing a connector at the end of the rod, the connector is installed on the rod and meets the installation requirements of the rotating head. The rotating head is eccentrically provided with an inlet and outlet hole, and the inner wall of the rotating head is also provided with a rotation drive part. When the sliding button slides towards the rotating head, the pen tip will abut against the rotation drive part to drive the rotating head to rotate, so that the inlet and outlet hole rotates to be arranged opposite to the pen tip, allowing the pen tip to extend out of the inlet and outlet hole. Since the rotating head can rotate freely, the inlet and outlet hole can be aligned with the corresponding sliding button, thereby allowing the pen tip to remain basically unchanged. In this way, during use, since the pen tip is basically not deformed, the shaking can be reduced, and the pen tip retraction can be smoother, thereby improving the reliability of use and the user experience. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the multi-core writing pen of this utility model;

[0013] Figure 2 for Figure 1 A cross-sectional view of a multi-core writing pen;

[0014] Figure 3 for Figure 1 Exploded view of a multi-core writing pen;

[0015] Figure 4 for Figure 3 Schematic diagram of the second rod

[0016] Figure 5 for Figure 3 Schematic diagram of the middle connecting sleeve;

[0017] Figure 6 for Figure 3 Schematic diagram of the rotating head;

[0018] Figure 7 for Figure 3 A schematic diagram of the middle connector.

[0019] Figure label:

[0020] 100. Pen barrel; 200. Pen refill; 210. Pen tip; 300. Spring; 1. Barrel; 11. First rod; 12. Second rod; 13. Connecting sleeve; 101. Slide groove; 102. Mounting port; 121. Annular groove; 131. Positioning rib; 2. Rotating head; 21. Inlet / outlet hole; 22. Rotation drive unit; 23. Sliding guide surface; 24. Shaft hole; 221. Guide slope; 222. Pointed head; 3. Sliding button; 4. Connector; 41. Support shaft; 42. Anti-detachment head; 43. Through hole; 44. Sliding support surface. Detailed Implementation

[0021] like Figures 1-7 As shown, this utility model provides a multi-core writing pen. The multi-core writing pen typically includes a pen barrel 100 and multiple pen refills 200. The pen barrel 100 is equipped with sliding buttons 3 that match the pen refills 200. The tail of each pen refill 200 is connected to a corresponding sliding button 3. Pressing a sliding button 3 allows the corresponding pen refill 200 to extend outside the pen barrel 100 for use. When switching pen refills 200, pressing another sliding button 3 unlocks the pressed button 3. Under the action of a spring 300, the unlocked sliding button 3 causes the pen refill 200 to retract and reset, while the pressed sliding button 3 causes the corresponding pen refill 200 to extend outside the pen barrel 100. The locking and unlocking methods between the sliding buttons 3 can be referenced from conventional multi-core writing pens, and will not be limited or elaborated upon here.

[0022] This application provides a multi-core writing pen, including: a pen barrel 100 and multiple pen cores 200.

[0023] The pen barrel 100 includes a barrel 1, a rotating head 2, a connector 4, and multiple sliding buttons 3. The first end of the barrel 1 forms a mounting opening 102, and the second end of the barrel 1 is provided with multiple sliding grooves 101. The connector 4 is disposed in the mounting opening 102, and the sliding buttons are slidably disposed in their corresponding sliding grooves. The rotating head 2 is rotatably disposed on the connector 4, and the rotating head 2 is provided with an inlet / outlet hole 21, which is eccentrically arranged on one side of the axis of the rotating head 2. The inner wall of the rotating head 2 is also provided with a rotation drive part 22. The sliding buttons 3 are slidably disposed in their corresponding sliding grooves 101.

[0024] The pen refill 200 is inserted into the rod 1 and connected to the corresponding sliding button 3;

[0025] The rotary drive unit 22 is configured to be abutted by the pen refill 200 to drive the rotary head 2 to rotate on the connector 4 and guide the pen tip 210 of the pen refill 200 to be inserted into the inlet / outlet hole 21. The inlet / outlet hole 21 is configured to allow the pen tip 210 of the pen refill 200 to extend to the outside of the rotary head 2.

[0026] Specifically, the connecting piece 4 of the pen barrel 100 is provided with a rotatable rotating head 2, and the access hole 21 provided on the rotating head 2 is arranged eccentrically. The eccentric position is arranged according to the relative arrangement between the access hole 21 on the rotating head 2 and the pen core 200 to be extended out during the rotation of the rotating head 2. During use, the sliding button 3 slides towards the rotating head 2, and the pen core 200 will abut against the rotating driving part 22 to drive the rotating head 2 to rotate, so that the access hole 21 rotates to the relative arrangement with the pen core 200 to extend the pen tip 210 of the pen core 200 out of the access hole 21. The pen tip 210 of the pen core 200 will exert pressure on the rotating driving part 22 to drive the rotating head 2 to rotate on the pen barrel 100 through the rotating driving part 22, and the pen core 200 continues to extend out of the pen barrel 100. Finally, the center line of the access hole is parallel to the center line of the pen core 200 after the pen tip 210 of the pen core 200 extends out of the access hole 21, so that the pen core 200 is not in a curved state in the use state.

[0027] In an embodiment, the connecting piece 4 is provided with a support shaft 41, and the axis of the support shaft 41 is collinear with the rotation axis of the rotating head 2, and the rotating head 2 is rotatably arranged on the support shaft 41.

[0028] Specifically, the connecting piece 4 is provided with an outwardly extending support shaft 41, and the rotating head 2 is directly mounted on the support shaft 41 to support the rotating head 2 to rotate relative to the pen barrel 100 through the support shaft 41. In addition, the rotating head 2 is provided with a shaft hole 24, the access hole 21 is arranged on one side of the shaft hole 24, and the support shaft 41 is inserted into the shaft hole 24.

[0029] Further, in order to prevent the rotating head 2 from falling off to improve the assembly reliability, the free end of the support shaft 41 is further provided with an anti-falling head 42, which abuts against the outside of the rotating head 2 and is configured to prevent the rotating head 2 from falling off from the support shaft 41.

[0030] Specifically, the anti-falling head 42 is mounted on the support shaft 41 in a detachable manner. During assembly, after the rotating head 2 is mounted on the support shaft 41, the anti-falling head 42 is fixed on the support shaft 41 to prevent the rotating head 2 from falling off from the support shaft 41. The anti-falling head 42 can be fixed on the support shaft 41 in a threaded or clamping manner.

[0031] Alternatively, the free end of the support shaft 41 is formed with a plurality of elastic portions, and the outer surface of the elastic portion is formed with a protruding portion; the protruding portion abuts against the outside of the rotating head 2 and is configured to prevent the rotating head from falling off from the support shaft.

[0032] Specifically, during assembly, the protruding portions are inserted into the shaft hole 24, the elastic portions are deformed by extrusion, the distance between the plurality of protruding portions is reduced, and finally the plurality of protruding portions pass through the shaft hole 24, and rotation of the rotating head from the support shaft is prevented by the plurality of protruding portions.

[0033] Alternatively, an outer periphery of the free end of the support shaft is formed with an annular protrusion, the annular protrusion abuts against the outside of the rotating head and is configured to prevent the rotating head from falling off the support shaft.

[0034] Specifically, during assembly, the annular protrusion is inserted into the shaft hole 24, so that the shaft hole 24 is elastically deformed by a certain amount, and after the annular protrusion passes through the shaft hole 24, the rotating head 2 is limited from falling off the support shaft on the outside of the shaft hole 24.

[0035] Further, the connecting piece 4 is provided with a plurality of through holes 43 arranged around the support shaft 41, the through holes 43 are configured to pass through the refill 200 at the corresponding position, and the through holes 43 are arranged opposite to the corresponding sliding button 3.

[0036] Specifically, the connecting piece 4 is provided with a through hole 43 matched with the refill 200, and the nib 210 of the refill 200 extends into the rotating head 2 through the through hole 43.

[0037] In an embodiment, an outer periphery of the connecting piece 4 is formed with a circular annular sliding support surface 44, and an inner wall of the rotating head 2 is provided with a circular annular sliding guide surface 23, and the sliding guide surface 23 is rotatably in contact with the sliding support surface 44. The sliding support surface 44 cooperates with the sliding guide surface 23 to ensure that the rotating head 2 can rotate on the pen barrel 100. The sliding guide surface 23 can be sleeved on the outside of the sliding support surface 44 to realize rotation of the rotating head 2 on the pen barrel 100.

[0038] In an embodiment, in order to facilitate installation of the connecting piece 4, the connecting piece 4 is in interference fit with the mounting port 102; or the connecting piece 4 is glued in the mounting port 102.

[0039] In an embodiment, in order to realize automatic resetting of the refill 200, the pen barrel 100 is further provided with a spring 300, and the spring 300 is used to apply elastic force to the refill 200 or the sliding button 3 to realize automatic resetting.

[0040] For the rotation driving part 22, on one hand, it needs to contact the pen tip 210 to realize the driving rotation of the rotating head 2, and on the other hand, the rotation driving part 22 further guides the pen tip 210 to insert into the access hole 21 when cooperating with the pen tip 210. The rotation driving part 22 protrudes from the inner wall of the rotating head 2, and the side of the rotation driving part 22 is provided with a guide slope 221 which extends obliquely towards the access hole 21; the guide slope 221 is configured to abut against the pen core 200 to drive the rotating head 2 to rotate on the pen barrel 100.

[0041] Specifically, the rotation driving part 22 protrudes from the inner wall of the rotating head 2, and the guide slope 221 formed on the side of the rotation driving part 22 can abut against the pen tip 210 of the pen core 200. The guide slope 221 is extruded by the pen tip 210 of the pen core 200 sliding outwards to realize the application of pressure on the rotating head 2 by the rotation driving part 22 to make the rotating head 2 rotate on the pen barrel 100. At the same time, the guide slope 221 extends towards the access hole 21 to finally guide the pen tip 210 to accurately insert into the access hole 21. Preferably, the two sides of the rotation driving part 22 are respectively provided with the guide slope 221. The rotation driving part 22 is respectively provided with the guide slope 221 on both sides, and the guide slope 221 extends to the access hole 21, so that the pen core 200 at different positions can cooperate with the corresponding side of the guide slope 221 to drive the rotating head 2 to rotate.

[0042] In another embodiment, the rotation driving part 22 is a pointed part 222 towards the end of the pen barrel 100, and the guide slope 221 extends obliquely from the pointed part 222 towards the access hole 21. Specifically, the pointed part 222 is formed on the rotation driving part 22, which can ensure that the pen tip 210 is distributed to one side of the guide slope 221 after contacting the pointed part 222 to ensure the use reliability.

[0043] In an embodiment, the rod body 1 includes a first rod 11, a second rod 12, and a connecting sleeve 13; the second rod 12 is provided with a plurality of sliding grooves 101, and the sliding button 3 is slidably arranged in the corresponding sliding groove 101; the connecting sleeve 13 is rotatably arranged on the second rod 12, and the connecting sleeve 13 is threadedly connected with the first rod 11; the first rod body 11 is provided with a mounting opening 102.

[0044] Specifically, for the pen barrel 100, the barrel 1 adopts a split design, and when assembled, the first barrel 11 and the second barrel 12 are connected and fixed by the connecting sleeve 13, and the first barrel 11 and the second barrel 12 are relatively stationary. The sliding button 3 is assembled to the second barrel 12, and the pen core 200 is connected to the corresponding sliding button 3, and then the first and second barrels 12 can be connected. The connecting sleeve 13 is pre-assembled on the second barrel 12, and the connecting sleeve 13 can rotate on the second barrel 12 and cannot fall off the second barrel 12 in the length direction. In this way, when the first barrel 11 and the second barrel 12 are connected, the second barrel 12 is butted against the first barrel 11 and the pen core 200 is inserted into the first barrel 11, the connecting sleeve 13 is rotated relative to the second barrel 12 and is screwed and fastened with the first barrel 11. During the rotation of the connecting sleeve 13, the first barrel 11 and the second barrel 12 do not rotate relatively, so that the pen core 200 can be more closely attached to the inner wall of the first barrel 11, and there is no need to reserve an excessively large gap due to the rotation of the pen core 200 in the first barrel 11, so that the outer circumference of the pen core 200 can be effectively increased without increasing the outer circumference of the first barrel 11 to increase the capacity of the pen core 200.

[0045] In another embodiment, in order to ensure that the connecting sleeve 13 can freely rotate on the second barrel 12 while not falling off the second barrel 12. The inner wall of the connecting sleeve 13 is provided with internal threads and positioning ribs 131, the outer wall of the second barrel 12 is provided with an annular clamping groove 123, the connecting sleeve 13 is sleeved on the outside of the second barrel 12, the positioning ribs 131 are clamped in the annular clamping groove 123 and the positioning ribs 131 are slidably arranged in the annular clamping groove 123 around the axis direction of the connecting sleeve 13; the other end of the first barrel 11 is provided with external threads, and the connecting sleeve 13 is connected on the first barrel 11 by the cooperation of the internal threads and the external threads. Specifically, the connecting sleeve 13 is pre-assembled on the second barrel 12, the connecting sleeve 13 is sleeved on the insertion part 121 of the second barrel 12, and the positioning ribs 131 are clamped in the annular clamping groove 123 to prevent falling off, and when the connecting sleeve 13 rotates, the positioning ribs 131 rotate in the annular clamping groove 123.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multi-chambered writing instrument characterized by, The utility model relates to a pen, comprising: a pen barrel, the pen barrel comprising a barrel body, a rotating head, a connecting piece and a plurality of sliding buttons, a first end of the barrel body forms a mounting opening, a second end of the barrel body is provided with a plurality of sliding grooves; the connecting piece is arranged in the mounting opening, the sliding buttons are slidably arranged in the corresponding sliding grooves; the rotating head is rotatably arranged on the connecting piece, the rotating head is provided with an access hole, the access hole is arranged eccentrically on one side of the axis of the rotating head, and an inner wall of the rotating head is further provided with a rotating driving part; a plurality of pen cores, the pen cores are inserted into the barrel body and connected to the corresponding sliding buttons; a spring, the spring is located in the barrel body and is configured to apply a spring force to the pen core or the sliding button; wherein the rotating driving part is configured to be abutted by the pen core to drive the rotating head to rotate on the connecting piece and guide the pen tip of the pen core to be inserted into the access hole; the access hole is configured to allow the pen tip of the pen core to protrude outside the rotating head.

2. The multi-chambered writing instrument of claim 1, wherein The connecting piece is provided with a support shaft, the axis of the support shaft is collinear with the rotating axis of the rotating head, and the rotating head is rotatably arranged on the support shaft.

3. The multi-chambered writing instrument of claim 2, wherein, The rotating head is provided with a shaft hole, the access hole is arranged on one side of the shaft hole, and the support shaft is inserted into the shaft hole.

4. The multi-chambered writing instrument of claim 3, wherein, The free end of the support shaft is further provided with a detachable anti-falling head, the anti-falling head abuts against the outside of the rotating head and is configured to prevent the rotating head from falling off the support shaft.

5. The multi-chambered writing instrument of claim 3, wherein, The free end of the support shaft is formed with a plurality of elastic parts, the outer surface of the elastic part is formed with a protruding part; the protruding part abuts against the outside of the rotating head and is configured to prevent the rotating head from falling off the support shaft; alternatively, the outer periphery of the free end of the support shaft is formed with an annular protrusion, the annular protrusion abuts against the outside of the rotating head and is configured to prevent the rotating head from falling off the support shaft.

6. The multi-chambered writing pen of claim 2, wherein, The connecting piece is provided with a plurality of through holes, and the plurality of through holes are distributed around the support shaft; the through hole is configured to allow the pen core at the corresponding position to pass through.

7. The multi-chambered writing pen of claim 1, wherein, The outer periphery of the connecting piece is formed with a circular annular sliding support surface, the inner wall of the rotating head is provided with a circular annular sliding guide surface, and the sliding guide surface is rotatably in contact with the sliding support surface.

8. The multi-chambered writing pen of claim 1, wherein, The connecting piece is interference fit with the mounting opening.

9. The multi-chambered writing pen of claim 1, wherein, The connecting piece is glued in the mounting opening.

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