Rotatable and depressible pen case

Abstract

This invention provides a rotatable and pressable pen case for assembling a pen refill. The pen case includes: a pen barrel, a positioning component, a pen grip, and a rubber ring disposed between the pen barrel and the pen grip, arranged longitudinally from top to bottom. The end of the pen grip near the pen barrel forms a radially inwardly contracting upper connecting portion. The positioning component includes: a first positioning tube sleeved on the outside of the upper connecting portion of the pen grip and a second positioning tube sleeved on the outside of the end of the pen grip near the pen barrel, with the end of the pen barrel near the pen grip sleeved on the outside of the first positioning tube and abutting against the second positioning tube. A first groove is formed on the outer side of the upper connecting portion of the pen grip to partially accommodate the rubber ring, and a second groove is formed on the inner side of the pen barrel to partially accommodate the rubber ring, with a gap between the first and second grooves. Through this invention, the pen refill assembled inside the pen case can be moved and extended by rotation or pressing for easy carrying.

Description

Technical Field

[0001] This invention relates to the field of cultural products technology, and in particular to a rotatable and pressable pen casing. Background Technology

[0002] Existing multi-functional pens come in various styles, and generally, to maximize their lifespan, they are designed to be quite long, leading to various inconveniences when carrying them. Specifically, due to their length, they cannot be placed horizontally in small pockets, especially in summer when wearing T-shirts or other tops without jacket pockets and requiring trouser pockets. Current solutions to this problem involve designing shorter, more portable multi-functional pens, including portable mechanical pencils and portable automatic fountain pens. However, the lead-out button on these portable multi-functional pens is often located at the top, making it easy to accidentally press the button when in a pocket, causing the lead to extend, stain clothing, or even potentially puncture the skin, posing a safety hazard.

[0003] In view of this, it is necessary to improve the existing multi-functional pens to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing portable multi-functional pens are inconvenient to carry due to the design of their pressing position and structure.

[0005] To achieve the above objectives, the present invention provides a rotatable and pressable pen casing for assembling a pen refill, the pen casing comprising:

[0006] The pen barrel, positioning component, pen grip, and rubber ring disposed between the pen barrel and the pen grip are arranged longitudinally from top to bottom.

[0007] The pen grip forms a radially inwardly tapering upper connecting portion at one end near the pen barrel. The positioning component includes: a first positioning tube sleeved on the outside of the upper connecting portion of the pen grip and a second positioning tube sleeved on the outside of the end of the pen grip near the pen barrel, and the end of the pen barrel near the pen grip is sleeved on the outside of the first positioning tube and abuts against the second positioning tube.

[0008] The outer side of the pen grip connecting part has a first groove for accommodating the rubber ring portion, and the inner side of the pen barrel has a second groove for accommodating the rubber ring portion, with a gap formed between the first groove and the second groove.

[0009] As a further improvement of the present invention, the rubber ring is accommodated in the first groove and the second groove, and the cross-section of the rubber ring is larger than the cross-section of the first groove and the cross-section of the second groove.

[0010] As a further improvement of the present invention, the inner side of the end of the pen barrel near the positioning member is provided with a first chamfer, and the two ends of the second groove near the pen grip are provided with a second chamfer and a third chamfer respectively. A wedge-shaped groove is formed between the first chamfer and the second chamfer, and the wedge-shaped groove shrinks radially inward from bottom to top in the longitudinal direction.

[0011] As a further improvement of the present invention, the end of the pen grip near the pen barrel is recessed downward to form an annular platform, and a rubber tube is provided on the annular platform to contact the second positioning tube.

[0012] As a further improvement of the present invention, the pen grip is provided with a first placement hole and a second placement hole at the bottom of the annular platform, which communicate with the annular platform;

[0013] The first placement hole intersects with the second placement hole.

[0014] As a further improvement of the present invention, the side portion of the first placement hole and the side portion of the second placement hole form openings for placing the two ends of the rubber tube. The openings are rectangular, and the longitudinal length of the openings is equal to the longitudinal length of the first placement hole and the longitudinal length of the second placement hole. The lateral width of the openings is smaller than the diameter of the rubber tube.

[0015] As a further improvement of the present invention, the pen shell further includes: a lifting member sleeved on the outside of the end of the pen refill;

[0016] The lifting component includes: a lifting component nut, a lifting component hollow screw partially embedded inside the lifting component nut, and a first fixing component disposed inside the lifting component nut and abutting against the top end of the lifting component hollow screw;

[0017] The first fixing member forms a first elastic member that surrounds the outer side of the end of the pen refill, and the first elastic member is in contact with the pen refill and applies a radially inward force to the pen refill to clamp the end of the pen refill.

[0018] As a further improvement of the present invention, an external thread of the lifting component is formed on the outer side of the lifting component nut, and an internal thread of the pen barrel is formed on the inner side of the pen barrel that is adapted to the external thread of the lifting component.

[0019] As a further improvement of the present invention, the limiting member sleeved on the outside of the pen refill;

[0020] The limiting component includes: a limiting nut, a limiting hollow screw partially embedded inside the limiting nut, and a second fixing component disposed inside the limiting nut and abutting against the top end of the limiting hollow screw;

[0021] The second fastener forms a second elastic member that surrounds the outer side of the inner core, and the second elastic member is in contact with the inner core and applies a radially inward force to the inner core to clamp the inner core.

[0022] As a further improvement of the present invention, the outer side of the limiting nut protrudes to form a protrusion, and the inner side of the pen grip forms a sliding groove for the protrusion to slide longitudinally.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] Without applying external force to the multi-purpose pen, the pen barrel and grip remain stably mounted; when a rotational force is applied to the pen barrel or grip, the pen barrel and grip rotate relative to each other; when a downward longitudinal force is applied to the pen barrel, the pen barrel moves downward longitudinally, and the second groove moves to a position lower than the first groove; and when the downward longitudinal force is stopped, the pen barrel returns to its original position under the combined rebound of the rubber rings, and the second groove returns to a position higher than the first groove, thereby ensuring smooth press-and-rebound of the multi-purpose pen. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the housing shown in the present invention;

[0026] Figure 2 This is a cross-sectional view of the multi-purpose pen shown in this invention;

[0027] Figure 3 A cross-sectional view of the pen cap, the retaining cup, and the pen grip;

[0028] Figure 4 This is a cross-sectional view of the pen barrel and cap.

[0029] Figure 5 A top view of the pen grip;

[0030] Figure 6 A cross-sectional view of the hoop bowl from one perspective;

[0031] Figure 7 A cross-sectional view of the positioning component, part of the pen grip, and part of the pen barrel;

[0032] Figure 8 This is a sectional view of the positioning component;

[0033] Figure 9 Cross-sectional view of the limiting component

[0034] Figure 10 This is a bottom view of the limiting nut;

[0035] Figure 11 This is a top view of the hollow screw, which is a limiting component;

[0036] Figure 12 A bottom view of the hollow screw, which is a limiting component;

[0037] Figure 13 This is a cross-sectional view of the lifting component in one embodiment;

[0038] Figure 14 This is a cross-sectional view of the lifting nut, the lifting nut cap, and the rotating cover in one embodiment;

[0039] Figure 15 This is a top view of the lifting nut in one embodiment;

[0040] Figure 16 This is a bottom view of the lifting nut in one embodiment;

[0041] Figure 17 This is a cross-sectional view of the first fastener in one embodiment;

[0042] Figure 18 This is a top view of the first fastener in one embodiment;

[0043] Figure 19 A cross-sectional view of the first fastener in another embodiment;

[0044] Figure 20 A top view of the first fastener in another embodiment;

[0045] Figure 21 This is a bottom view of the penholder;

[0046] Figure 22 A bottom view of the lifting component in another embodiment;

[0047] Figure 23 This is a bottom view of the micro-motion component in another embodiment;

[0048] Figure 24 A bottom view of the lifting nut in another embodiment;

[0049] Figure 25 A cross-sectional view of the lifting component in another embodiment;

[0050] Figure 26 This is a partial sectional view of the lifting component in another embodiment;

[0051] Figure 27 A cross-sectional view of the lifting nut, lifting nut cap, and rotating cover in another embodiment;

[0052] Figure 28 A top view of the lifting nut in another embodiment;

[0053] Figure 29This is a cross-sectional view of the lifting component in an assembled state according to one embodiment;

[0054] Figure 30 This is a sectional view of the limiting component in its assembled state.

[0055] Figure 31 A cross-sectional view of a multi-purpose pen with a thick-barreled ballpoint pen refill;

[0056] Figure 32 A cross-sectional view of a multi-purpose pen with a push-button pen refill attached;

[0057] Figure 33 A cross-sectional view of the end of the automatic refill of a multi-functional pen;

[0058] Figure 34 A cross-sectional view of a mechanical pencil equipped with a multi-functional pen;

[0059] Figure 35 A cross-sectional view of a mechanical pencil with the outer casing and lead tube cap removed from its assembly;

[0060] Figure 36 A cross-sectional view of a mechanical pencil with its outer casing cut off and the lead tube cap removed, assembled with the multi-purpose pencil in place;

[0061] Figure 37 A cross-sectional view of the end of a mechanical pencil;

[0062] Figure 38 A cross-sectional view of a mechanical pencil with the lead tube cap removed, fully assembled with the casing removed. Detailed Implementation

[0063] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0064] Please refer to Figures 1 to 38 As shown, the present invention discloses a rotatable and pressable pen shell (hereinafter referred to as "pen shell 10") for assembling pen refills A. Specifically, the pen shell 10 is a component of a multi-purpose pen 100, which can be used to assemble different types and specifications of pen refills A when out and about. That is, it can be compatible with different types and specifications of pen refills A, and specifically may include ballpoint pen refills, mechanical pencil refills, pencil (short pencil) refills, and lead (thick lead) refills of different thicknesses and shapes, so as to facilitate the travel of people who like to sketch, draw, and record important matters, feelings, inspirations, data, etc.; at the same time, it can also be used to prevent a series of situations caused by the pen refills A protruding from the pen shell 10 when carrying it out.

[0065] Specifically, referring to Figure 1 As shown, the multi-functional pen 100 includes: a pen shell 10, and a lifting member 21 and a limiting member 22 disposed inside the pen shell 10 and sleeved outside the pen core A, and the lifting member 21 is sleeved outside the end of the pen core A. The end of the pen core A is clamped by the lifting member 21, and the other end of the pen core A is clamped by the limiting member 22, so as to achieve the stable assembly of the pen core A in the multi-functional pen 100, and can be adaptively adjusted according to pen cores A of different thicknesses, thereby solving the problems that the types and specifications of replacement cores of existing writing tools are different, and when the pen core is used up and needs to be replaced, there is no pen core of the same type and specification in the local market. And if the replacement core is carried by oneself, there is the inconvenience problem of carrying replacement cores of different types and specifications at the same time.

[0066] Referring to Figures 1 to 3 and Figure 6 As shown, the pen shell 10 includes: a pen cap 15, a pen barrel 14, a positioning member 13, a pen grip 12 and a pen tip 11 arranged longitudinally from top to bottom in sequence; the lifting member 21 is arranged inside the pen barrel 14, and the limiting member 22 is arranged inside the pen grip 12. The pen tip 11 is arranged at one end of the pen grip 12 away from the pen barrel 14. The pen tip 11 includes: a pen tip shell 111 and a tightening bowl 112 arranged inside the pen tip shell 111. The tightening bowl 112 is in a bowl shape and surrounds the pen tip A1 included in the pen core A and is elastic. The tightening bowl 112 includes: a tightening bowl body 1121 and a tightening bowl edge 1122 arranged at the top of the tightening bowl body 1121. The tightening bowl body 1121 is formed by at least three elastic pieces (not marked) surrounding in an arc shape. Fine slits (not shown) are formed between the elastic pieces, and the ends extend radially outward to form a clamping opening 1123 for clamping the pen tip A1 at the center position of the tightening bowl 112. The diameter of the clamping opening 1123 can be adjusted through the fine slits by the elastic pieces to clamp pen cores A of different thicknesses. When the pen core A extends out of the pen shell 10, the pen tip A1 moves longitudinally downward inside the pen shell 10 and extends out of the pen tip 11. At this time, the pen tip A1 penetrates through the clamping opening 1123 and the pen core A is clamped by the elastic pieces, thereby achieving the stable assembly of the pen core A when the multi-functional pen 100 is in use. Preferably, the tightening bowl 112 is made of stainless steel with excellent elasticity and moderate elasticity, and has eight elastic pieces.

[0067] Referring to Figure 2 and Figure 3As shown, one end of the pen grip 12 close to the pen cap 11 radially contracts inward to form a lower connecting part 121 of the pen grip, and an external thread (not marked) of the lower connecting part of the pen grip is formed on the outer side of the lower connecting part 121 of the pen grip. One end of the pen cap 11 close to the pen grip 12 forms a pen cap connecting part 113 sleeved on the outer side of the lower connecting part 121 of the pen grip, and an internal thread (not marked) of the pen grip connecting part adapted to the external thread of the lower connecting part of the pen grip is formed on the inner side of the pen cap connecting part 113. The detachable assembly of the pen cap 11 and the pen grip 12 is achieved through the mutual adaptation of the external thread of the lower connecting part of the pen grip and the internal thread of the pen grip connecting part. At the same time, the tightening hoop edge 1122 extends into the pen cap connecting part 113, and the top surface of the tightening hoop edge 1122 contacts the bottom surface of the lower connecting part 121 of the pen grip. When the external thread of the lower connecting part of the pen grip and the internal thread of the pen cap connecting part are screwed tightly together, the tightening hoop edge 1122 is clamped jointly by the lower connecting part 121 of the pen grip and the pen cap connecting part 113, thereby achieving the detachable assembly of the tightening hoop 112.

[0068] See Figure 2 , Figure 4 , Figure 7 , Figure 8 and Figure 21As shown, one end of the pen grip 12 close to the pen shaft 14 forms a pen grip upper connecting portion 122 that radially contracts inward. The positioning member 13 includes: a first positioning tube 131 sleeved on the outer side of the pen grip upper connecting portion 122 and a second positioning tube 132 sleeved on the outer side of one end of the pen grip 12 close to the pen shaft 14. The pen shaft 14 is sleeved on the outer side of the first positioning tube 131 and abuts against the second positioning tube 132. The pen shell 10 further includes: a rubber ring 17 disposed between the pen shaft 14 and the pen grip 12. A first groove 1221 for partially accommodating the rubber ring 17 is formed on the outer side of the pen grip upper connecting portion 122, and a second groove 141 for partially accommodating the rubber ring 17 is formed on the inner side of the pen shaft 14. A gap C1 is formed between the inside of the pen shaft 14 and the outer wall of the pen grip upper connecting portion 122 above the first positioning tube 131. Thus, the rubber ring 17 is accommodated in the first groove 1221 and the second groove 141, and the pen shaft 14 can longitudinally move relative to the pen grip 12 through the gap C1. The first positioning tube 131 is located between the inner wall of the pen shaft 14 and the outer wall of the pen grip upper connecting portion 122 to solve the problem of shaking due to the gap between the pen shaft 14 and the pen grip upper connecting portion 122. When the rubber ring 17 is accommodated in the first groove 1221 and the second groove 141, the cross-section of the rubber ring 17 is larger than the cross-sections of the first groove 1221 and the second groove 141, so that the rubber ring 17 fills the first groove 1221 and the second groove 141. In a state without external force, the rotation or separation of the pen grip 12 and the pen shaft 14 is avoided through the rubber ring 17, thereby ensuring the stable assembly between the pen grip 12 and the pen shaft 14. At the same time, the inner side of the end of the pen shaft 14 close to the positioning member 13 is provided with a first chamfer D1, and the longitudinal two ends of the second groove 141 close to the pen grip 12 are respectively provided with a second chamfer D2 and a third chamfer D3. A wedge-shaped groove C2 is formed between the first chamfer D1 and the second chamfer D2, and the wedge-shaped groove C2 radially contracts inward longitudinally from bottom to top (that is, a wedge-shaped groove C2 in the shape of a triangular pyramid is formed).

[0069] Refer Figure 5 to Figure 7As shown, an annular platform H1 is formed at one end of the pen grip 12 near the pen barrel 14, and a rubber tube 123 is provided on the annular platform H1 to contact the second positioning tube 132. That is, the rubber tube 123 is provided on the annular platform H1, and the second positioning tube 132 is sleeved on the outside of the rubber tube 123 and in contact with the rubber tube 123, so that the rubber tube 123 fills the annular platform H1, thereby realizing the stable assembly and elastic movement of the positioning member 13 and the pen grip 12. At the same time, a first placement hole 1231 and a second placement hole 1232 are formed at the bottom of the annular platform H1 and communicate with the annular platform H1. The first placement hole 1231 and the second placement hole 1232 intersect, and the two ends of the rubber tube 123 are respectively placed in the first placement hole 1231 and the second placement hole 1232, and they abut against each other to further realize the stable assembly of the rubber tube 123 on the pen grip 12. In addition, an opening E1 is provided on the side of the first placement hole 1231 and the side of the second placement hole 1232 for placing both ends of the rubber tube 123. The opening E1 is rectangular, and the longitudinal length of the opening E1 is equal to the longitudinal length of the first placement hole 1231 and the longitudinal length of the second placement hole 1232. The lateral width of the opening E1 is smaller than the diameter of the rubber tube 123. Thus, the two ends of the rubber tube 123 are pressed into the first placement hole 1231 and the second placement hole 1232 through the opening E1 to achieve stable assembly of the rubber tube 123.

[0070] Specifically, when assembling the pen grip 12 and the pen shaft 14, press one end of the rubber tube 123 into the first placement hole 1231 or the second placement hole 1232 from the opening E1, wind the rubber tube 123 around the annular platform H1, press the rubber tube 123 onto the annular platform H1 and tighten it, press the other end of the rubber tube 123 into the second placement hole 1232 or the first placement hole 1231 from the opening E2, and sleuth the second positioning tube 132 of the positioning member 13 outside the annular platform H1 to press the rubber tube 123. Sleeve the rubber ring 17 onto the first groove 1221 formed in the upper connecting portion 122 of the pen grip, and sleeve the end of the pen shaft 14 with the first chamfer D1 outside the upper connecting portion 122 of the pen grip. During the sleeving process (i.e., when the pen shaft 14 moves longitudinally downward to sleeve outside the first positioning tube 131), the first chamfer D1 first contacts the rubber ring 17, then the protruding portion between the wedge-shaped grooves C2 contacts the rubber ring 17 and gradually compresses it to deform the rubber ring 17. Finally, the rubber ring 17 is partially accommodated in the second groove 1222 through the gap C1 with the second chamfer D2, and the second chamfer D2 and the third chamfer D3 help the rubber ring 17 slide into the second groove 1222, thereby achieving the stable assembly of the pen grip 12 and the pen shaft 14. Without applying external force to the multi-functional pen 100, the pen shaft 14 and the pen grip 12 remain stably installed; when applying a rotational force to the pen shaft 14 or the pen grip 12, the pen shaft 14 and the pen grip 12 rotate relative to each other; when applying a longitudinally downward force to the pen shaft 14, the pen shaft 14 moves longitudinally downward, and the second groove 1222 moves to a position lower than the first groove 1221. And when stopping applying the longitudinally downward force to the pen shaft 14, the pen shaft 14 resets under the combined elastic return action of the rubber ring 17 and the rubber tube 123, and the second groove 1222 returns to a position higher than the first groove 1221. Thus, the second chamfer D2 and the third chamfer D3 of the second groove 1222 can ensure the smooth pressing and elastic return of the multi-functional pen 100. When it is necessary to replace the pen refill A, apply forces to the pen shaft 14 and the pen grip 12 in the reverse direction. The rubber ring 17 deforms and disengages from the second groove 1222 (the second chamfer D2 helps the rubber ring 17 to disengage), and slides away from the pen shaft 14 through the gap C1, causing the pen grip 12 and the pen shaft 14 to disengage.

[0071] See Figure 2As shown, the pen shell 10 further includes: a rubber 16 disposed between the pen cap 15 and the pen barrel 14, and the pen cap 15 and the pen barrel 14 are detachably assembled. For its specific assembly method, for example, it can be by means of snap fasteners, etc., and this embodiment does not specifically limit this. The pen cap 15 forms a first accommodation chamber (not labeled), and the pen barrel 14 forms a second accommodation chamber (not labeled), so that a rubber chamber 161 for placing the rubber 16 is formed by combining the first accommodation chamber and the second accommodation chamber. Of course, the rubber chamber 161 can also be formed only at one end of the pen barrel 14 close to the pen cap 15, or the rubber chamber 161 is formed only at one end of the pen cap 15 close to the pen barrel 14, and this embodiment does not specifically limit this. At the same time, a circular hole E9 is opened between the second accommodation chamber and the lifting member 21, and the circular hole longitudinally covers the following cover hole for the lead core 31 to pass through.

[0072] In this application, the lifting member 21 has two specific implementation manners, and the two lifting members 21 (that is, the following lifting member 21a and lifting member 21b) can be alternately assembled as replacement parts. When the pen core A is a gel pen core or an automatic pen core of a multi-functional pen or an automatic pen core with the outer shell removed or an automatic pen core with the outer shell cut short, then the lifting member 21a is assembled; when the pen core A is an automatic pen core with a complete outer shell structure, then the lifting member 21b is assembled. For specific examples, refer to the following, and details will not be elaborated here. At the same time, in this application, the first fixing member included in the lifting member 21 also has two specific implementation manners, and the two first fixing members can be alternately assembled as replacement parts, and the two first fixing members are respectively adapted to pen cores A of different thicknesses. When the pen core A is a thick rod, then the first fixing member 213b is assembled; when the pen core A is a thin rod, then the first fixing member 213a is assembled. Similarly, the second fixing member is similar to the above first fixing member, and details will not be elaborated in this embodiment.

[0073] Refer to Figure 13 , Figure 17 , Figure 19 and Figure 29 As shown, the lifting member 21a includes: a lifting member nut 211a, a lifting member hollow screw 212a partially embedded inside the lifting member nut 211a, and a first fixing member 213 (that is, the first fixing member 213a or the first fixing member 213b) disposed inside the lifting member nut 211a and abutted against the top end of the lifting member hollow screw 212a; the first fixing member forms a first elastic member (that is, the first elastic member 2131a or the first elastic member 2131b) surrounding and disposed outside the end of the pen core A, and the first elastic member is in contact with the pen core A and applies a radially inward acting force to the pen core A to clamp the end of the pen core A. The end of the pen core A is clamped by the first elastic member to ensure the stable assembly of the end of the pen core A inside the pen shell 10.

[0074] Specifically, refer to Figure 2 and Figure 13As shown, an external thread 2111a of the lifting member is formed on the outer side of the lifting member nut 211a, and an internal thread 142 of the pen barrel adapted to the external thread 2111a of the lifting member is formed on the inner side of the pen barrel 14. By driving the pen barrel 14 to axially rotate relative to the pen grip 12, the pen core A is longitudinally moved in the pen barrel 14 by the lifting member 21a, so as to achieve the purpose of the pen core A extending out of or being retracted into the pen shell 10, and thus avoid the situation in the prior art that the core ejection button of the portable multi-purpose pen is often set at its top and is likely to be accidentally touched when placed in the pocket. A part of the hollow screw 212a of the lifting member is embedded in the lifting member nut 211a, and a through hole E2 for the pen core A to penetrate is formed at the central position. An external thread 2122a of the locking part of the lifting member is formed on the outer side of the hollow screw 212a of the lifting member, and an internal thread 2112a of the lifting member adapted to the external thread 2122a of the locking part of the lifting member is formed on the inner side of the lifting member nut 211a. The detachable assembly of the lifting member nut 211a and the hollow screw 212a of the lifting member is realized by the mutual adaptation of the external thread 2122a of the locking part of the lifting member and the internal thread 2112a of the lifting member. At the same time, the longitudinal position of the hollow screw 212a of the lifting member in the lifting member nut 211a can be adjusted to adjust the longitudinal length of the first fixing member 213a or the first fixing member 213b. The hollow screw 212a of the lifting member further includes a rotating handle 2121a formed on the side of the hollow screw 212a of the lifting member away from the first fixing member. An axial rotational force can be applied to the hollow screw 212a of the lifting member through the rotating handle 2121a to screw the hollow screw 212a of the lifting member into the lifting member nut 211a.

[0075] See Figure 13 , Figure 17 and Figure 18As shown, the first fixing member 213a is adapted to the thin-barreled pen refill A. The first fixing member 213a includes: a first upper fixing ring 2132a and a first lower fixing ring 2133a coaxially arranged, and a first elastic member 2131a is disposed between the first upper fixing ring 2132a and the first lower fixing ring 2133a. The first elastic member 2131a includes: at least three pairs of clips symmetrically arranged along the central axis of the first upper fixing ring 2132a or the first lower fixing ring 2133a. The top ends of the two pairs of clips are inclined towards each other and abut against each other, and their ends are movably connected to the first upper fixing ring 2132a and the first lower fixing ring 2133a to adjust the tilt angle. The ends of the two clips are movably connected to the first upper fixing ring 2132a and the first lower fixing ring 2133a respectively in an elastic connection, and the elastic connection is bent. Preferably, the first fixing member 213a is made of one-piece stamped stainless steel. Taking clips 2134a and 2135a as examples, clips 2134a and 2135a are a pair of clips. Clips 2134a and 2135a are inclined towards each other. The end of clip 2134a is movably connected to the first upper fixing ring 2132a, and the angle between the plane of clip 2134a and the plane of the first upper fixing ring 2132a (i.e., the inclination angle of clip 2134a) can be adjusted. The end of clip 2135a is connected to the first lower fixing ring 2133. A movable connection is provided, and the angle between the plane of the clamping piece 2135a and the plane of the first lower fixing ring 2133a (i.e., the tilt angle of the clamping piece 2135a) can be adjusted. The top of the clamping piece 2134a abuts against the top of the clamping piece 2135a. Thus, the size of the through hole E3 formed at the center of the clamping piece for the pen refill A to pass through can be adjusted by adjusting the tilt angles of the clamping pieces 2134a and 2135a. The clamping piece is elastic, thereby achieving the clamping of different thin pen refills A. Specifically, the longitudinal length of the first fixing member 213a can be adjusted by rotating the hollow screw 212a of the lifting member relative to the nut 211a of the lifting member, so as to further adjust the distance between the first upper fixing ring 2132a and the first lower fixing member 2133a, thereby achieving the purpose of adjusting the tilt angle of the clamping piece. The first fixing member 213a also includes: a rubber sleeve fitted on the top of the clip. Taking the clip 2135a as an example, the top of the clip 2135a is fitted with a rubber sleeve 2136a. Thus, the clip 2135a does not directly contact the pen refill A, but indirectly contacts the pen refill A through the rubber sleeve 2136a, thereby enhancing the clamping effect of the first fixing member 213a on the pen refill A.On the outer sides of the first upper fixing ring 2132a and the first lower fixing ring 2133a, a first upper positioning portion 2137a and a first lower positioning portion (not shown) respectively protrude. Inside the lifting member nut 211a, a first upper positioning groove 2113a and a first lower positioning groove (not marked) for accommodating the first upper positioning portion 2137a and the first lower positioning portion are formed. The first upper positioning portion 2137a and the first lower positioning portion are respectively accommodated in the first upper positioning groove 2113a and the first lower positioning groove, so as to achieve stable assembly of the first fixing member 213a in the lifting member nut 211a. The first upper positioning groove 2113a and the first lower positioning groove can be two grooves or one groove. Preferably, the first upper positioning groove 2113a and the first lower positioning groove are configured as one groove.

[0076] Refer Figure 19 With Figure 20As shown, the first fixing member 213b is adapted to the thick-barreled pen refill A. The first fixing member 213b includes: a first upper fixing ring 2132b and a first lower fixing ring 2133b coaxially arranged, and a first elastic member 2131b is disposed between the first upper fixing ring 2132b and the first lower fixing ring 2133b. The first elastic member 2131b includes at least three pairs of clips symmetrically arranged along the central axis of the first upper fixing ring 2131b or the first lower fixing ring 2133b. The top ends of the two pairs of clips are inclined towards each other and abut against each other, and the ends are movably connected to the first upper fixing ring 2132b and the first lower fixing ring 2133b to adjust the tilt angle. Taking clips 2134b and 2135b as examples, clips 2134b and 2135b are a pair of clips. Clips 2134b and 2135b are inclined towards each other. The end of clip 2134b is movably connected to the first upper fixing ring 2132b, and the angle between the plane of clip 2134b and the plane of the first upper fixing ring 2132b can be adjusted (i.e., the inclination angle of clip 2134b). The end of clip 2135b is connected to the first lower fixing ring 2133. b. The clamping element is movable and the angle between the plane of the clamping piece 2135b and the plane of the first lower fixing ring 2133b (i.e., the tilt angle of the clamping piece 2135b) can be adjusted. The top of the clamping piece 2134b abuts against the top of the clamping piece 2135b. Thus, the size of the through hole E4 formed at the center of the clamping piece for the pen refill A to pass through can be adjusted by the tilt angle of the clamping piece 2134b and the tilt angle of the clamping piece 2135b. The clamping piece is elastic, thereby achieving clamping of pen refills A of different thicknesses. The first fixing member 213b also includes: a rubber sleeve fitted on the top of the clamping piece. Taking the clamping piece 2135b as an example, the top of the clamping piece 2135b is fitted with a rubber sleeve 2136b. Thus, the clamping piece 2135b does not directly contact the pen refill A, but indirectly contacts the pen refill A through the rubber sleeve 2136b, thereby enhancing the clamping effect of the first fixing member 213b on the pen refill A. The outer sides of the first upper fixing ring 2132b and the outer sides of the first lower fixing ring 2133b respectively protrude to form the first upper positioning part 2137b and the first lower positioning part (not shown). The inner side of the lifting nut 211b forms the first upper positioning groove (not shown) and the first lower positioning groove (not shown) for accommodating the first upper positioning part 2137b and the first lower positioning part respectively, so as to achieve stable assembly of the first fixing member 213b in the lifting nut 211b.

[0077] It should be noted that the main difference between the first fixing member 213a and the first fixing member 213b is that the through hole E3 formed by the first fixing member 213a is smaller than the through hole E4 formed by the second fixing member 213b. When assembling a thin rod refill into the multi-functional pen 100, the first fixing member 213a is used; when assembling a thick rod refill into the multi-functional pen 100, the first fixing member 213b is used. Therefore, the first fixing member 213a and the first fixing member 213b are used as replacement parts to cope with refills A of different thicknesses. At the same time, due to slight differences between thin rod refills produced by different manufacturers and slight differences between thick rod refills produced by different manufacturers, an elastic clip is used to stably hold the refill A, thereby stably holding refills A of different types and specifications.

[0078] In the present application, referring Figure 33 to Figure 37 as shown, the refill A includes a gel pen refill, a push-type gel pen refill, an automatic refill of a multi-functional pen, and an automatic refill. The automatic refill of the multi-functional pen includes: a lead tube 42 with an internal lead 41, a pen tip 44 sleeved on the outer side of the top end of the lead tube 41, and a core protection tube 43 provided at the top end of the pen tip 44. The automatic refill includes: a lead tube 32 with an internal lead 31, a pen tip 35 sleeved on the outer side of the top end of the lead tube 32, a core protection tube 32 provided at the top end of the pen tip 35, and a housing 33 sleeved on the outer side of the lead tube 32; wherein, the housing 33 and the pen tip 35 are fixed together. The aforementioned pen tip is the core protection tube 43 and / or the core protection tube 34.

[0079] Referring Figures 13 to 16 to Figure 31As shown, the top of the lifting nut 211a is provided with a lifting nut cap 2114a. The lifting nut cap 2114a is recessed downward to form a retaining platform 2115a that abuts against the first fixing member. A first cap hole 2116a is opened at the center of the retaining platform 2115a, and a second cap hole 2117a is opened around the first cap hole 2116a. The first cap hole 2116a and the second cap hole 2117a are tangent, and the diameter of the first cap hole 2116a is different from the diameter of the second cap hole 2117a so that lead cores 31 of different thicknesses can pass through and be assembled into the lead core tube 32. The lifting component 21a also includes: a rotating cover 214a embedded inside the lifting component nut cap 2114a and abutting against the enclosure platform 2115a, and a rubber ring 215a disposed between the rotating cover 214a and the lifting component nut cap 2114a. A first rubber ring groove 2147a is provided on the side of the rotating cover 214a that is in contact with the lifting component nut cap 2114a to partially accommodate the rubber ring 215a. A second rubber ring groove 2118a is provided on the side of the lifting component nut cap 2114a that is in contact with the rotating cover 214a to partially accommodate the rubber ring 215a. Thus, the rotating cover 214a and the lifting component nut 2114a are stably assembled through the rubber ring 215a, and the rubber ring 215a can rotate relative to the lifting component nut 2114a. The top of the rotating cover 214a is provided with four intersecting rotating cover handles 2146a, and the top of the lifting component nut cap 2114a is provided with four equidistant handles 2119a corresponding longitudinally to the rotating cover handles 2141a. The rotating cover 214a and the lifting component nut cap 2114a are coaxially arranged. The rotating cover 214a has five cover holes for lead cores 31 of different thicknesses to pass through. The cover holes include: a first cover hole 2141a located at the center of the rotating cover 214a and passing through the intersection of the rotating cover handles 2141a; a second cover hole 2142a, a third cover hole 2143a, a fourth cover hole 2144a, and a fifth cover hole 2145a located around the first cover hole 2141a and passing through the intersection of the rotating cover handles 2141a. The diameters of the first cover hole 2141a, the second cover hole 2142a, the third cover hole 2143a, the fourth cover hole 2144a, and the fifth cover hole 2145a are different so that lead cores 31 of different thicknesses can pass through and be assembled into the lead core tube 32.

[0080] Specifically, the diameter of the first cover hole 2141a < the diameter of the second cover hole 2142a < the diameter of the third cover hole 2143a < the diameter of the fourth cover hole 2144a < the diameter of the fifth cover hole 2145a, the diameter of the first cap hole 2116a < the diameter of the second cap hole 2117a, and the diameter of the first cap hole 2116a is 0.1 mm - 0.5 mm larger than the diameter of the first cover hole 2141a, the diameter of the second cap hole 2117a is 0.1 mm - 0.5 mm larger than the diameter of the fifth cover hole 2145a, and the diameter of the cover hole is 0.1 mm - 0.5 mm larger than the diameter of the corresponding lead core 31. The drive rotates the rotary cover 214a around the central axis where the lifting member nut 2114a is located, so that the second cap hole 2117a is longitudinally aligned with the second cover hole 2142a, the third cover hole 2143a, the fourth cover hole 2144a, and the fifth cover hole 2145a respectively for the continuously passing through of lead cores 31 with different thicknesses.

[0081] As shown in Figure 15 and Figure 28 shown, marking 21461a and marking 21621b are respectively opened on the rotary cover handle 2146a and the rotary cover handle 2162b on the same side as the second cap hole 2117a. If the thinnest lead core 31 is used, there is no need to adjust the axial position of the rotary cover 214a, and the lead core 31 is put into the first cap hole 2116a through the first cover hole 2141a. If lead cores 31 of other specifications are used, the rotary cover 214a is driven to rotate axially so that the rotary cover handle 2141a is aligned with the equal - distance handle 2119a, and then the lead core 31 is put into the second cap hole 2117a through the corresponding cover hole. The diameter of the cover hole is 0.1 mm - 0.5 mm larger than the diameter of the lead core 31, and all cover holes pass through the rotary cover handle 2141a. The axis length of the cover hole is long, and the diameter of the cap holes (i.e., the first cap hole 2116a and the second cap hole 2117a) is larger than that of the cover hole. Thus, when the multi - purpose pen 100 is inverted or tilted, if the lead core 31 enters the cap hole, it will tilt. Relying on the thin aperture of the cover hole, the long axis of the cover hole, and the tilt formed by the lead core 31 due to the different diameters of the cap hole and the cover hole, it is ensured that the lead core 31 placed in the lead core tube 32 will not fall out of the lead core tube 32.

[0082] In another embodiment, as shown in Figures 22 to 28 and Figure 34 shown, the lifting member 21b includes: a lifting member nut 211b, a lifting member hollow screw 212b partially embedded inside the lifting member nut 211b, and a first fixing member (not marked) disposed inside the lifting member nut 211b and abutting against the top end of the lifting member hollow screw 212b; the first fixing member forms a first elastic member (not marked) surrounding and setting the end of the refill A, and the first elastic member is in contact with the refill A and applies a radially inward force to the refill A to clamp the end of the refill A. By clamping the end of the refill A with the first elastic member, the stable assembly of the end of the refill A in the pen shell 10 is ensured.

[0083] It should be noted that since the first fixing member included in the lifting member 21b is similar in structure to the first fixing member included in the lifting member 21a (i.e., the first fixing member 213a or the first fixing member 213b), for its specific structure, reference can be made to the aforementioned first fixing member 213a and the first fixing member 213b, which will not be elaborated here.

[0084] Refer Figure 25 And Figure 26 As shown, a part of the hollow screw 212b of the lifting member is embedded inside the nut 211b of the lifting member, and a through hole E5 for the refill A to pass through is formed at the central position. An internal thread 2112b of the nut of the lifting member is formed inside the nut 211b of the lifting member, and an external thread 2121b of the hollow screw of the lifting member, which is adapted to the internal thread 2112b of the nut of the lifting member, is formed outside the hollow screw 212b of the lifting member. The detachable assembly of the nut 211b of the lifting member and the hollow screw 212b of the lifting member is realized through the internal thread 2112b of the nut of the lifting member and the external thread 2121b of the hollow screw of the lifting member. Specifically, a locking portion 2123b of the hollow screw of the lifting member, which is embedded inside the nut 211b of the lifting member, and a rotating handle 2122b provided at the bottom of the locking portion 2123b of the hollow screw of the lifting member (i.e., the rotating handle 2122b is formed at the bottom of the hollow screw 212b of the lifting member) are formed on the hollow screw 212b of the lifting member. The external thread 2121b of the hollow screw of the lifting member is formed outside the locking portion 2123b of the hollow screw of the lifting member. By applying an axial rotational force to the rotating handle 2122b, the hollow screw 212b of the lifting member is screwed into the nut 211b of the lifting member.

[0085] Refer Figures 22 to 25As shown, the lifting member 21b further includes: a micro-moving member 214b embedded in the lifting member nut 211b. At least two gaps 2111b are formed on the side of the lifting member nut 211b. A micro-moving member slider 2141b is formed on the side of the micro-moving member 214b, which is fitted into the gap 2111b and moves longitudinally along the gap 2111b. The micro-moving member slider 2141b forms a micro-moving member external thread 2142b, and an internal thread 142 of the pen barrel is formed inside the pen barrel 15 to match the micro-moving member external thread 2142b. By driving the pen barrel 14 to rotate axially relative to the pen grip 12, since the micro-moving member 214b is fitted with the lifting member nut 211b to drive the entire lifting member 21b to move longitudinally, the pen core A is thus driven by the lifting member 21b to move longitudinally within the multi-functional pen 100, thereby achieving the purpose of the pen core A extending out of or retracting into the pen case 10, and thus avoiding the situation in the prior art where the core ejection button of the multi-functional pen is often set at its top and is likely to be accidentally touched when placed in the pocket. Regarding the number of the gaps 2111b and the micro-moving member sliders 2141b, at least two are provided, and three, four, or more can also be provided, as long as it can be achieved that by driving the pen barrel 14 to rotate axially relative to the pen grip 12, the pen core A can be driven to move longitudinally within the multi-functional pen 100. Preferably, the number of the gaps 2111b and the micro-moving member sliders 2141b is configured to be four.

[0086] Refer Figure 23 to Figure 25 As shown, the micro-moving member 214b protrudes downward to form a micro-moving ring 2143b that only abuts against the lead core tube 32. The outer end of the outer shell 33 is clamped by the first fixing member included in the lifting member 21b, and by driving the pen barrel 14 to move longitudinally relative to the pen grip 12, the micro-moving ring 2143b is driven to drive the lead core tube 32 to move longitudinally within the outer shell 33, thereby achieving the purpose of automatic pen core ejection. The micro-moving member 214b further includes: a connecting member 2144b, which is arranged between the top of the first fixing member included in the lifting member 21b and the lifting member nut cap 215b. The micro-moving ring 2143b is formed on the side of the connecting member 2144b facing the first fixing member included in the lifting member 21b. The micro-moving member slider 2141b is formed on the side of the connecting member 2144b, and the micro-moving member slider 2141b is arranged around the periphery of the connecting member 2144b. The micro-moving member slider 2141b is arc-shaped. In this application, the connecting member 2144b and the micro-moving member slider 2141b can be an integral structure, or the connecting member 2144b and the micro-moving member slider 2141b can be regarded as a split structure and fixedly connected by a processing method. This embodiment does not make specific limitations on this. A through hole E6 for the lead core 31 to pass through is formed at the central position of the connecting member 2144b, and the micro-moving ring 2143b is arranged around the through hole E6.

[0087] Refer Figure 26 to Figure 27As shown, the lifting component 21b also includes a lifting component nut cap 215b disposed at the top of the micro-motion component 214b, and a gap C3 is formed between the lifting component nut cap 215b and the first fixing component included in the lifting component 21b to allow the connecting component 2144b to move longitudinally. Specifically, the pen barrel 14 is driven to move longitudinally downward relative to the pen grip 12, and the internal thread 142 of the pen barrel drives the external thread 2142b of the micro-motion component, thereby causing the micro-motion ring 2143b to move longitudinally downward and push the lead tube 32 to move longitudinally downward, so as to achieve the purpose of automatic pen lead dispensing; when the driving of the pen barrel 14 to move longitudinally downward relative to the pen grip 12 is stopped, the pen barrel 14 and the lead tube 31 are reset under the rebound action of the rubber ring 17, the rubber tube 123 and the springs of the automatic pen lead, thereby driving the micro-motion ring 2143b to reset.

[0088] A first cap hole 2152b is formed at the center of the lifting component nut cap 215b, and second cap holes 2153b are formed around the first cap hole 2152b. The lifting component nut cap 215b is recessed downward to form a retaining platform 2151b that can support the micro-movement component 214b. Both the first cap hole 2152b and the second cap hole 2153b are formed on the retaining platform 2151b. The first cap hole 2152b and the second cap hole 2153b are tangent, and the diameter of the first cap hole 2152b is different from that of the second cap hole 2153b so that lead cores 31 of different thicknesses can pass through and be assembled into the lead core tube 32. The lifting component 21b further includes: a rotating cover 216b embedded inside the lifting component nut cap 215b and abutting against the enclosure platform 2151b; and a rubber ring 217b disposed between the rotating cover 216b and the lifting component nut cap 215b. A first rubber ring groove 2161b is formed on the side of the rotating cover 216b that conforms to the lifting component nut cap 215b to partially accommodate the rubber ring 217b. A second rubber ring groove 2154b is formed on the side of the lifting component nut cap 215b that conforms to the rotating cover 216b to partially accommodate the rubber ring 217b. Thus, the rubber ring 217b enables a stable assembly between the rotating cover 216b and the lifting component nut cap 215b, and the rotating cover 216b can rotate relative to the lifting component nut cap 215b. Four intersecting rotating cover handles 2162b are provided on the top of the rotating cover 216b, and four equidistant handles 2155b, corresponding longitudinally to the rotating cover handles 2162b, are provided on the top of the lifting component nut cap 215b. The rotating cover 216b and the lifting nut 215b are coaxially arranged. The rotating cover 216b has five cover holes for lead cores 31 of different thicknesses to pass through. The cover holes include: a first cover hole 2163b located at the center of the rotating cover 216b and passing through the rotating cover handle 2162b; and second cover holes 2164b, third cover hole 2165b, fourth cover hole 2166b, and fifth cover hole 2167b located around the first cover hole 2163b and passing through the rotating cover handle 2162b. The diameters of the first cover hole 2163b, the second cover hole 2164b, the third cover hole 2165b, the fourth cover hole 2166b, and the fifth cover hole 2167b are different to allow lead cores 31 of different thicknesses to pass through and be assembled into the lead core tube 32.

[0089] Specifically, the diameter of the first cap hole 2163b < the diameter of the second cap hole 2164b < the diameter of the third cap hole 2165b < the diameter of the fourth cap hole 2166b < the diameter of the fifth cap hole 2167b, the diameter of the first cap hole 2152b < the diameter of the second cap hole 2153b, and the diameter of the first cap hole 2152b is 0.1 mm - 0.5 mm larger than the diameter of the first cap hole 2163b, the diameter of the second cap hole 2153b is 0.1 mm - 0.5 mm larger than the diameter of the fifth cap hole 2167b, and the diameter of the cap hole is 0.1 mm - 0.5 mm larger than the diameter of the corresponding lead core 31. Preferably, the first cap hole 2163b, the second cap hole 2164b, the third cap hole 2165b, the fourth cap hole 2166b, and the fifth cap hole 2167b respectively correspond to a 0.3 mm lead core, a 0.5 mm lead core, a 0.7 mm lead core, a 0.9 mm lead core, and a 1.1 mm lead core.

[0090] Drive the rotary cap 216b to rotate around the central axis where the lifting member nut cap 215b is located, so that the second cap hole 2153b is longitudinally aligned with the second cap hole 2164b, the third cap hole 2165b, the fourth cap hole 2166b, and the fifth cap hole 2167b respectively for the lead cores 31 of different thicknesses to continuously penetrate. When adding a lead core, open the pen cap 15 and take out the rubber 16, move the lifting member 21 to the top by rotating the pen barrel 14, pass through the circular hole E9, then through the cap hole corresponding to the lead core specification of the automatic pen core A, and through the cap hole (if using the lifting member 21b, then through the through hole E6), and put the corresponding lead core into the lead core tube 32 without disassembling the pen barrel 14 and the pen grip 12.

[0091] See Figure 9 And Figure 30 As shown, the limiting member 22 includes: a limiting member nut 221, a limiting member hollow screw 222 partially embedded inside the limiting member nut 221, and a second fixing member (not shown) disposed inside the limiting member nut 221 and abutted against the top end of the limiting member hollow screw 222; the second fixing member forms a second elastic member (not shown) surrounding the outside of the pen core A, and the second elastic member is in contact with the pen core A and applies a radially inward force to the pen core A to clamp the pen core A, and the pen core A is further ensured to be stably assembled inside the pen shell 10 by clamping the pen core A end through the second elastic member.

[0092] It should be noted that since the second fixing member included in the limiting member 22 is similar in structure to the first fixing member (i.e., the first fixing member 213a or the first fixing member 213b) included in the lifting member 21a, for its specific structure, reference can be made to the aforementioned first fixing member 213a and the first fixing member 213b, and details will not be repeated here.

[0093] See Figures 9 to 12As shown, the hollow screw 222 of the limiting member is partially embedded inside the limiting nut 221, and a through hole E7 for the pen refill A to pass through is formed at the center position. The inner side of the limiting nut 221 forms the internal thread 2211 of the limiting nut, and the outer side of the hollow screw 222 forms the external thread 2221 of the limiting nut, which is adapted to the internal thread 2211 of the limiting nut. The detachable assembly of the limiting nut 221 and the hollow screw 222 is achieved through the internal thread 2211 and the external thread 2221 of the limiting nut. Specifically, the hollow screw 222 of the limiting member forms a limiting member locking part 2222 embedded inside the limiting member nut 221 and a rotating handle 2223 provided at the bottom of the limiting member locking part 2222. The external thread 2221 of the hollow screw of the limiting member is formed on the outside of the limiting member locking part 2222. By applying an axial rotational force to the rotating handle 2223, the hollow screw 222 of the limiting member is screwed into the limiting member nut 221. The top of the limiting nut 221 is provided with a limiting nut cap 2212, which is recessed downward to form a limiting blocking platform 2213 that abuts against the second fixing member. The top of the limiting nut cap 2212 is formed with a limiting nut cap handle 2214, which is coaxially arranged with the limiting blocking platform 2213. The center of the limiting nut cap handle 2214 and the center of the limiting blocking platform 2213 are respectively formed with a through hole E8 for the pen refill A to pass through. The outer side of the limiting nut 221 protrudes to form a protrusion 223, and the inner side of the pen grip 12 forms a sliding groove 124 for the protrusion 223 to slide longitudinally. The protrusion 223 moves longitudinally within the pen shell 10 along the contour formed by the sliding groove 124 to adjust the longitudinal position of the limiting member 22, thereby realizing the clamping of different types and specifications of pen refills A at different positions to adapt to different types and specifications of pen refills A.

[0094] The following shows specific embodiments of assembling different types and specifications of pen refills A into the multi-purpose pen 100.

[0095] Since the difference in assembly between thick-barreled and thin-barreled ballpoint pen refills lies in the first fixing component used for the thick-barreled refill and the first fixing component used for the thin-barreled refill, this application omits showing the specific assembly method of the thin-barreled ballpoint pen refill and only shows the thick-barreled ballpoint pen refill for illustrative purposes. (See reference...) Figure 31As shown, if the refill A is the refill A2 of a thick-barrel gel pen, the lifting member 21a (with the first fixing member for thick-barrel use assembled inside) is assembled on the outer side of the end of the thick-barrel gel pen refill A2, and the limiting member 22 (with the second fixing member for thick-barrel use assembled inside) is assembled on the outer side of the other end of the thick-barrel gel pen refill A2 to ensure the stable assembly of the thick-barrel gel pen refill A2 in the multi-functional pen 100. When in use, the pen barrel 14 is driven to rotate clockwise or counterclockwise relative to the pen grip 12, so that the lifting member 21a带动 the thick-barrel gel pen refill A2 to move longitudinally downward in the multi-functional pen 100, making the tip of the thick-barrel gel pen refill A2 extend from the pen shell 10; when not in use, the pen barrel 14 is driven to rotate counterclockwise or clockwise relative to the pen grip 12, so that the lifting member 21a带动 the thick-barrel gel pen refill A2 to move longitudinally upward in the multi-functional pen 100, making the refill of the thick-barrel gel pen refill A2 retract from the pen shell 10. The thick-barrel gel pen refill A2 is driven to extend and retract by rotation to avoid the situation in the prior art that since the core-exposing button of a portable multi-functional pen is often set at its top, it is easy to accidentally touch the core-exposing button when placed in a pocket.

[0096] Refer Figure 32 As shown, if the refill A is the refill A3 of a press-type gel pen, the press-type gel pen refill A3 is only one kind of press-type gel pen refills on the market, but the protection scope of this application cannot be limited thereby. The upper end of the press-type gel pen refill A3 is thick-barrel and the lower end is thin-barrel. The lifting member 21a (with the first fixing member for thick-barrel use assembled inside) is assembled on the outer side of the end of the press-type gel pen refill A3, and the limiting member 22 (with the second fixing member for thin-barrel use assembled inside) is assembled on the outer side of the other end of the press-type gel pen refill A3 to ensure the stable assembly of the press-type gel pen refill A3 in the multi-functional pen 100. When in use, the pen barrel 14 is driven to rotate clockwise or counterclockwise relative to the pen grip 12, so that the lifting member 21a带动 the press-type gel pen refill A3 to move longitudinally downward in the multi-functional pen 100, making the tip of the press-type gel pen refill A3 extend from the pen shell 10; when not in use, the pen barrel 14 is driven to rotate counterclockwise or clockwise relative to the pen grip 12, so that the lifting member 21a带动 the press-type gel pen refill A3 to move longitudinally upward in the multi-functional pen 100, making the refill of the press-type gel pen refill A3 retract from the pen shell 10. The press-type gel pen refill A3 is driven to extend and retract by rotation to avoid the situation in the prior art that since the core-exposing button of a portable multi-functional pen is often set at its top, it is easy to accidentally touch the core-exposing button when placed in a pocket.

[0097] Refer Figure 34 As shown, if the refill A is the automatic refill of a multi-functional pen (that is, Figure 34As shown in the mechanical pencil lead A4), the lifting member 21a (internally equipped with a first fixing member for a thin rod) is assembled on the outer side of the end of the mechanical pencil lead A4), and the limiting member 22 (internally equipped with a second fixing member for a thin rod) is assembled on the outer side of the other end of the mechanical pencil lead A4) to ensure the stable assembly of the mechanical pencil lead A4) within the multi-functional pen 100. When in use, the driving pen barrel 14 is rotated clockwise or counterclockwise relative to the pen grip 12, so that the core tube 43 extends from the pen shell 10, the clamping opening 1123 of the tightening bowl 112 clamps the core tube 34 of the mechanical pencil lead A4), the pen tip 44 abuts against the inner wall of the tightening bowl 112, and the driving pen barrel 14 is longitudinally moved downward relative to the pen grip 12 to make the mechanical pencil lead A4) lead out the lead core. When the driving of the pen barrel 14 stops, the pen barrel 14 rebounds under the action of the rubber ring 17, the rubber tube 123 and the spring自带 by the mechanical pencil lead A4), and the lead core tube 42 moves longitudinally upward with the pen barrel 14; when not in use, the driving pen barrel 14 is rotated counterclockwise or clockwise relative to the pen grip 12, so that the lifting member 21a带动 the mechanical pencil lead A4) to move longitudinally upward within the multi-functional pen 100, making the core tube 43 contract from the pen shell 10 to avoid the situation in the prior art that since the core outlet button of the multi-functional pen is often set at its top, it is easy to accidentally touch the core outlet button when placed in the pocket.

[0098] See Figure 35 and Figure 36 shown, if the lead A is a mechanical pencil lead, and Figure 35 the cap (not shown) for removing the outer shell 33 and the lead core tube 32 of the mechanical pencil lead shown in forms the mechanical pencil lead A5, Figure 36The upper half of the mechanical pencil lead cutting short shell 33 shown forms a mechanical pencil lead A6 with the removal of the cap of the lead tube 32 (not shown). The lifting member 21a is assembled outside the end of the mechanical pencil lead A5 (or the mechanical pencil lead A6), and the limiting member 22 is assembled outside the other end of the mechanical pencil lead A5 (or the mechanical pencil lead A6) to ensure the stable assembly of the mechanical pencil lead A5 (or the mechanical pencil lead A6) within the multi-functional pen 100. At this time, the spring自带 by the mechanical pencil lead A5 is disposed below the limiting member 22. Since the lifting member 21a and the limiting member 22 respectively clamp the lead tube 32 and the shell 33 of the mechanical pencil lead A6, and the shell 33 is fixedly connected to the pen tip 35, the spring (not shown)自带 by the mechanical pencil lead A6 is disposed between the lifting member 21a and the limiting member 22. When in use, the driving pen rod 14 rotates clockwise or counterclockwise relative to the pen grip 12, causing the lead protecting tube 32 to extend from the pen shell 10, and the driving pen rod 14 moves longitudinally downward relative to the pen grip 12 to cause the mechanical pencil lead A5 (or the mechanical pencil lead A6) to expose the lead. When the driving of the pen rod 14 stops, the pen rod 14 rebounds under the action of the rubber ring 17, the rubber tube 123, and the spring自带 by the mechanical pencil lead, and the lead tube 42 moves longitudinally upward with the pen rod 14; when not in use, the driving pen rod 14 rotates counterclockwise or clockwise relative to the pen grip 12, so that the lifting member 21a带动 the mechanical pencil lead A5 (or the mechanical pencil lead A6) to move longitudinally upward within the multi-functional pen 100, causing the lead protecting tube 34 to contract from the pen shell 10, avoiding the situation in the prior art that the lead exposing button of the portable multi-functional pen is often disposed at its top and is likely to be accidentally touched when placed in a pocket; at the same time, it also solves the problems that the mechanical pencil leads of multi-functional pens are applicable to a single lead thickness specification and the shell 33 of some mechanical pencils cannot be removed.

[0099] As shown in Figure 38 If the lead A is a mechanical pencil lead (i.e., the mechanical pencil lead with the complete shell 33 structure as described above), preferably, the lead A is the internal structure of a Schmidt mechanical pencil, or can also be formed by a thin rod mechanical pencil lead with only the cap of the lead tube 42 removed. Figure 38The automatic pen refill A7 shown has a lifting member 21b mounted on the outer end of the automatic pen refill A7, and a limiting member 22 mounted on the outer end of the other end of the automatic pen refill A7 to ensure stable assembly of the automatic pen refill A7 within the multi-purpose pen 100. When the lifting member 21b is used to fix the automatic pen refill A7, the opening of the lead tube 32 abuts against the micro-moving ring 2134b, so that the connecting member 2144b is at the top of the gap C3, and then the complete outer shell 33 is clamped by the first fixing member included in the lifting member 21b. When needed, the pen barrel 14 rotates clockwise or counterclockwise relative to the pen grip 12, causing the lead protector tube 32 to extend from the pen casing 10. The clamping port 1123 of the clamping bowl 112 holds the lead protector tube 34 of the automatic pen refill A7, and the pen tip 35 rests against the inner wall of the clamping bowl 112. The pen barrel 14 is then driven to move longitudinally downward relative to the pen grip 12, so that the micro-moving ring 2134b pushes only the lead tube 32 longitudinally downward, causing the lead 31 to extend from the lead protector tube 34. When the pen barrel 14 is stopped from moving vertically downward relative to the pen grip 12, the pen barrel 14 rebounds under the action of the springs in the rubber ring 17, rubber tube 123, and the automatic pen refill A7. The lead tube 42 moves vertically upward with the pen barrel 14. When not in use, the pen barrel 14 is driven to rotate counterclockwise or clockwise relative to the pen grip, so that the lifting component 21b drives the automatic pen refill A7 to move vertically upward within the multi-purpose pen 100, causing the lead tube 43 to retract from the pen shell 10. This solves the problem of the multi-functional pen's automatic pen refill having a single lead thickness specification, and the problem of the automatic pen refill A6 being unable to extend or retract due to the springs in the automatic pen refill A6 being assembled between the outer shell 43 and the lead tube 32, causing the lifting component 21b and the limiting component 22 to easily rotate relative to each other.

[0100] It should be noted that when using pen refill A, if the diameter of the pen tip matches the diameter of the pen cap, the clamping bowl 112 can be removed before use. If a spring is added between the limiting component and the pen cap 11 or the clamping bowl 112, and a press-type pen refill ejection mechanism is added between the lifting component 21a and the pen refill A, both rotational and press-type refill ejection can be achieved simultaneously. Non-press-type pen refill A2 can also be ejected by pressing, achieving the dual benefits of rapid refill ejection and full retraction of the pen refill into the housing 10.

[0101] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0102] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0103] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotatable and pressable pen casing for assembling a pen refill, characterized in that, The pen casing includes: The pen barrel, positioning component, pen grip, and rubber ring disposed between the pen barrel and the pen grip are arranged longitudinally from top to bottom. The pen grip forms a radially inwardly tapering upper connecting portion at one end near the pen barrel. The positioning component includes: a first positioning tube sleeved on the outside of the upper connecting portion of the pen grip and a second positioning tube sleeved on the outside of the end of the pen grip near the pen barrel, and the end of the pen barrel near the pen grip is sleeved on the outside of the first positioning tube and abuts against the second positioning tube. The outer side of the pen grip connecting part has a first groove for accommodating the rubber ring portion, and the inner side of the pen barrel has a second groove for accommodating the rubber ring portion, with a gap formed between the first groove and the second groove.

2. The pen casing according to claim 1, characterized in that, The rubber ring is housed within the first groove and the second groove, and the cross-section of the rubber ring is larger than the cross-section of the first groove and the cross-section of the second groove.

3. The pen casing according to claim 1, characterized in that, The inner side of the end of the pen barrel near the positioning member is provided with a first chamfer, and the two ends of the second groove near the pen grip are provided with a second chamfer and a third chamfer respectively. A wedge-shaped groove is formed between the first chamfer and the second chamfer, and the wedge-shaped groove shrinks radially inward from bottom to top.

4. The pen casing according to claim 1, characterized in that, The pen grip is recessed at one end near the pen barrel to form an annular platform, and a rubber tube is provided on the annular platform to contact the second positioning tube.

5. The pen casing according to claim 4, characterized in that, The pen grip has a first placement hole and a second placement hole at the bottom of the annular platform, which are connected to the annular platform. The first placement hole intersects with the second placement hole.

6. The pen casing according to claim 5, characterized in that, The side of the first placement hole and the side of the second placement hole form openings for placing the two ends of the rubber tube. The openings are rectangular, and the longitudinal length of the openings is equal to the longitudinal length of the first placement hole and the longitudinal length of the second placement hole. The lateral width of the openings is smaller than the diameter of the rubber tube.

7. The pen casing according to claim 1, characterized in that, The pen casing also includes: a lifting component sleeved on the outside of the end of the pen refill; The lifting component includes: a lifting component nut, a lifting component hollow screw partially embedded inside the lifting component nut, and a first fixing component disposed inside the lifting component nut and abutting against the top end of the lifting component hollow screw; The first fixing member forms a first elastic member that surrounds the outer side of the end of the pen refill, and the first elastic member is in contact with the pen refill and applies a radially inward force to the pen refill to clamp the end of the pen refill.

8. The pen casing according to claim 7, characterized in that, The outer side of the lifting component nut forms an external thread, and the inner side of the pen barrel forms an internal thread that matches the external thread of the lifting component.

9. The pen casing according to claim 1, characterized in that, The limiting member sleeved on the outside of the pen refill; The limiting component includes: a limiting nut, a limiting hollow screw partially embedded inside the limiting nut, and a second fixing component disposed inside the limiting nut and abutting against the top end of the limiting hollow screw; The second fixing member forms a second elastic member that surrounds the outside of the pen refill, and the second elastic member is in contact with the pen refill and applies a radially inward force to the pen refill to clamp the pen refill.

10. The pen casing according to claim 9, characterized in that, The outer side of the limiting nut protrudes to form a protrusion, and the inner side of the pen grip forms a sliding groove for the protrusion to slide longitudinally.

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