CN113022195B

CN113022195B - Automatic mechanical pen

Info

Publication number: CN113022195B
Application number: CN202110269646.XA
Authority: CN
Inventors: 余成鹏
Original assignee: Wenzhou Jiansi Stationery Co ltd
Current assignee: Wenzhou Jiansi Stationery Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2023-11-14
Anticipated expiration: 2041-03-12
Also published as: CN113022195A

Abstract

The invention relates to a pen, in particular to an automatic mechanical pen, which comprises an inner rod, an outer rod, a mechanical gear set, an automatic pen clip, a pen core and a reset spring; one or more matched barbs are arranged on the automatic pen clip; the mechanical gear set comprises a movable gear set, a shell, a movable displacement member, a refill limiting base and a locking member; the movable displacement member is divided into a movable ring and a displacement member, and one or more matched teeth are further arranged on the displacement member; the outer rod is also provided with a matched slotting and a fixed straight slot; the shell is also provided with a gear slot and a shell fixing convex strip; the driving wheel group consists of one or more gears; the gears in the driving wheel set are mutually meshed; at least one gear in the moving wheel set is matched with the matched teeth through a gear; the automatic pen clip is divided into a pen clip main body, a trigger group and a reset component; the pen clip main body is divided into a pen clip matched with the pen clip and a pen clip base.

Description

Automatic mechanical pen

Technical Field

The invention relates to a pen, in particular to an automatic mechanical pen.

Background

The pens on the market are organized well and have no detachable value; today, the 21 st century is entered, and in this new century, the current situation is still the same, although the development of people in technology is increasing; however, the importance of a pen as the base writing instrument is still indispensable; and with the acceleration of the life rhythm, people also use the pen with the structure for decades, and the craving for a novel pen is urgent.

Secondly, the above-mentioned several pens still have great defects in terms of structure, and the newly proposed pull pen, patent number: 2019106855133; the pen makes up for the convenience of operation, provides a brand new operation mode for people, provides more and better choices for people, and provides better and faster operation modes for people.

On the basis of the pulling pen, the DIY and the assembling space are smaller, the extending distance of the pen core is fixed, and the normal use of people is not influenced due to the fixed extending distance of the pen core; however, the telescopic distance of the pen refill can be freely controlled, and great breakthroughs are made for partial pen lovers;

the pen is single in core folding mode, and only one type of pen is needed; and, can't the structure lock, inconvenient carrying.

Moreover, any pen on the market is not provided with an automatic refill collecting function, and the lack of the automatic refill collecting function can lead to the fact that after the pen is used, when a user forgets to collect the refill and the pen falls off carelessly, the refill is easy to damage, and clothes, bags or surrounding environments of a carrier are easy to be polluted.

Disclosure of Invention

The invention aims to solve the problems and provide a mechanical pen.

In order to achieve the above object, the present invention adopts the following technical scheme:

an automatic mechanical pen comprises an inner rod, an outer rod, a mechanical gear set, an automatic pen holder, a pen refill and a return spring; one or more matched barbs are arranged on the automatic pen clip;

the mechanical gear set comprises a movable gear set, a shell, a movable displacement member, a refill limiting base and a locking member; the movable displacement member is divided into a movable ring and a displacement member, and one or more matched teeth are further arranged on the displacement member; the outer rod is also provided with a matched slotting and a fixed straight slot; the shell is also provided with a gear slot and a shell fixing convex strip;

the driving wheel group consists of one or more gears; the gears in the driving wheel set are mutually meshed; at least one gear in the moving wheel set is matched with the matched teeth through a gear;

the matching effect of at least one gear in the movable wheel set and the matched barb is a unidirectional rotation or ratchet structure; the positions of the openings of the matched grooves and the gear grooves are the same, and the gear matched with the matched barb generates tooth sum with the matched barb after passing through the matched grooves and the gear grooves;

the driving wheel set is arranged in the shell to form a driving wheel set;

The outer rod is internally provided with a maximum limiting ring table and a driving wheel limiting ring table; the refill limiting base is provided with a displacement opening and a base fixing convex strip; the base fixing convex strips and the shell fixing convex strips are fixed in the fixing straight grooves in a sliding manner;

the movable displacement member, the pen refill limiting base, the driving wheel sleeve member, the locking member and the automatic pen clip are sequentially arranged in the outer rod from top to bottom; after the movable displacement member, the refill limiting base and the movable wheel sleeve are sequentially installed, the movable ring can only move up and down between the maximum limiting ring table and the movable wheel limiting ring table through threads or snap fit between the locking member and the outer rod, and the movable wheel sleeve and the refill limiting base are fixed between the locking member and the movable wheel limiting ring table;

the refill, the reset spring and the inner rod are sequentially arranged in the outer rod from bottom to top; after the inner rod is arranged in the outer rod, the inner rod is matched with the movable ring in a threaded, clamping and/or magnetic attraction mode; the reset spring is arranged between the pen core and the inner rod; the pen core is mutually abutted with the pen core limiting base;

the automatic pen clip is divided into a pen clip main body, a trigger group and a reset component; the pen clip main body is divided into a matched pen clip and a pen clip base, the matched pen clip and the pen clip base are matched through hinge connection, and the triggering component is a movable displacement piece and a triggering sleeve piece; the movable displacement piece is sleeved on the pen clip base and is particularly positioned between the trigger suite and the matched pen clip; the matched barb is specifically positioned on the matched pen clip.

The trigger sleeve can indirectly control the movable displacement member to move downwards in the following two ways:

1. the trigger sleeve comprises a limiting piece and a trigger ring, wherein the limiting piece is fixed on the pen clip base, and the trigger ring is positioned between the limiting piece and the movable displacement piece; a trigger slope is arranged on the inner ring of the trigger ring; when the trigger ring is extruded by external force, the trigger ring is drawn close to the center, at the moment, the trigger slope is influenced, the movable displacement member is pressed, the movable displacement member is forced to move downwards, the movable displacement member is convenient to match with one end of the pen clamp, the matched pen clamp is pressed downwards, the other end of the matched pen clamp is lifted, teeth and effects between the matched barb and/or the matched teeth and the movable wheel set disappear, and the pen core is stored in the inner rod again;

2. the trigger kit comprises a spherical trigger, wherein the spherical trigger is connected with the pen clip base through a joint bearing, and a trigger ring protrusion is arranged at the lower end of the spherical trigger; the movable displacement member is characterized in that the inner side of the movable displacement member is also provided with a conical groove, when the spherical trigger is extruded by external force, the spherical trigger is inclined towards the side, at the moment, the conical groove is influenced by the protrusion of the trigger ring, the movable displacement member is forced to move downwards, the movable displacement member is conveniently matched with one end of the pen clamp, the matched pen clamp is pressed downwards, the other end of the matched pen clamp is promoted to tilt, teeth and effects between the matched barb and/or the matched teeth and the driving wheel set disappear, and the pen core is stored in the inner rod again.

The reset component consists of one or more substances with elasticity, elasticity or magnetic force; the reset component is arranged between the matched pen clip and the pen clip base, and when the external force disappears, the reset component can promote the movable displacement piece to move upwards, so that the reset of the sleeve piece is triggered.

The displacement piece can move unidirectionally towards the automatic pen clamp end through the movable wheel group, and the matched barb and the movable wheel group are matched to provide a unidirectional rotation locking mechanism for the movable wheel group; when the inner rod is extruded to move towards the automatic pen clamping end, the displacement member moves towards the automatic pen clamping end in a one-way through the moving wheel set, and the position of the pen core limiting base cannot move, so that the pen core can gradually expose the inner rod, and the method is a method for discharging the pen core;

the refill is retracted by eliminating the teeth and effects between the matched barbs and/or the matched teeth and the driving wheel set, so that the inner rod moves away from the automatic pen clip end under the elasticity of the reset spring, and the movable ring is mutually abutted against the maximum limiting ring table again; at this time, the matching distance between the inner rod and the outer rod reaches the maximum, and the pen core is stored in the inner rod again.

As a preferred aspect of the present invention: meanwhile, the special scheme of the second core-folding operation mode is that a prying bar groove is further formed in the outer bar, a linkage prying bar is further arranged in the prying bar groove, and the linkage prying bar is connected and matched with the outer bar through a hinge; the linkage pry bar is divided into a pressing part and a linkage part, the pressing part of the linkage pry bar is arranged on the lower half section of the outer bar, and the linkage part of the linkage pry bar is arranged on the upper half section of the outer bar and is specifically arranged under the clamping table of the automatic pen clamp;

When the pen core is in an exposed state and the pressing part is pressed, the linkage part is tilted upwards, and when the linkage part is tilted upwards, the clamping table is driven, so that the automatic pen clamp is deformed, and the matched barb is separated from the gear of the movable wheel group; the cartridge is stored in the inner rod again.

As a preferred aspect of the present invention: the matching mode of the expansion gears can be used for obtaining different operation experiences so as to meet the demands of different customer groups, and the specific scheme is as follows: all or part of gears in the movable wheel set are also provided with speed change gears, so that the moving speed between the displacement member and the matched barb is changed, the moving speed is determined by a combination mode of the speed change gears, the rotating distance between the displacement member and the gears matched with the barb teeth and the rotating distance between the displacement member and the gears matched with the barb teeth can be controlled under the condition that the moving distance of the displacement member is unchanged, and the longer the rotating distance is, the more teeth and times between the displacement member and the gears matched with the barb teeth and the matched barb are, and conversely, the fewer the teeth and times between the displacement member and the gears matched with the barb teeth and the matched barb are; different matching forces and the generated teeth and sound times can be realized by controlling the teeth and times between the gear matched with the inverted hook teeth and the matched barbs.

As a preferred aspect of the present invention: as a first core-collecting operation mode, the specific scheme is as follows: the shell is also provided with a reset notch; the uppermost part of the reset notch is provided with a switching slope, and the lowermost part is provided with a reset slope; the displacement piece is also provided with a switching sliding column; the switching slide column slides in the reset notch, and through the cooperation between switching slide column and the reset notch, the refill can be made to switch from writing state to hiding state, and the concrete cooperation mode is as follows:

When the refill is in an exposed state, the switching slide column is close to the top end of the reset notch, at the moment, the inner rod is further moved towards the automatic pen clamping end, the switching slide column can be shifted through the switching slope, so that the displacement member is forced to shift, teeth and states between the displacement member and the driving wheel set disappear, therefore, the displacement member is not constrained by the ratchet effect of the driving wheel set, the displacement member is indirectly influenced by the reset spring and is displaced downwards, the switching slide column is moved to the bottom end of the reset notch, the shifting of the displacement member is reset through the reset slope, the teeth and the states between the displacement member and the driving wheel set are reestablished, and at the moment, the movable ring is mutually collided with the maximum limiting ring table again; at this time, the matching distance between the inner rod and the outer rod reaches the maximum, and the pen core is stored in the inner rod again.

As a preferred aspect of the present invention: in order to ensure that the self-locking effect is further realized on the premise of having a third core-collecting operation mode, namely an automatic core-collecting function, the method can be realized by the following scheme: when the triggering sleeve adopts a scheme of a limiting piece and a triggering ring, the pen clip base is divided into an internal rotation self-locking piece and a base outer ring; the limiting piece is divided into an external rotating piece and an internal tightening piece; a self-locking movable piece is arranged between the internal rotation self-locking piece and the locking piece; the internal rotation self-locking piece is provided with a rotation boss, a control boss and a spin clamping part; the bottom of the outer rotating piece is provided with a rotating groove matched with the rotating boss; the self-locking movable piece is provided with a control groove matched with the control boss; after the rotating groove is matched with the rotating boss, the inner tightening piece is matched with the inner rotation self-locking piece in a threaded, magnetic attraction, adhesive, clamping, riveting or welding mode; the shapes of the rotating boss and the control boss are not cylindrical or conical; the self-locking movable piece is matched with the outer rod through threads; the outer rod is internally provided with a spin ring table, and the spin clamping part is clamped between the outer ring of the base and the spin ring table.

As a preferred aspect of the present invention: in order to ensure that the refill belongs to a refill-collecting state rather than a refill-discharging state during self-locking, the refill is prevented from being coincidently and clumsy, so that the refill is collected before self-locking, however, manual operation is easy to forget, and the refill is collected before self-locking by the following scheme; one or more core-collecting bosses are further arranged on the self-locking movable piece; the self-locking movable part can make the teeth and the relation between the displacement part and the driving wheel set disappear in the following two ways, so that the pen core is hidden in the inner rod;

1. the self-locking movable part or the displacement part is also provided with a sliding chamfer, and the displacement part is bent in the direction opposite to the moving wheel set in a mode of downwards moving the self-locking movable part and matching the sliding chamfer, so that teeth and relations between the displacement part and the moving wheel set disappear due to bending, and the refill is hidden in the inner rod; if the mode is needed, a bending space of the displacement member needs to be reserved in advance in the driving wheel set; the angle of the sliding chamfer is between 10 and 80 degrees;

2. the core-collecting boss rotates or deforms the displacement member, and the teeth and the relations between the displacement member and the driving wheel set disappear, so that the pen core is hidden in the inner rod;

Through the self-locking function of the core-collecting convex blocks and the self-locking movable parts, when the pen is in a refill-out state, the pen refill is directly collected by directly rotating the self-locking parts, and self-locking is achieved.

As a further preferred aspect of the present invention: in order to further expand the demands of the user population, the demands of DIY and customization of more people are met: and gears and/or speed change gears between the driving wheel sets can also adopt belt transmission.

As a further preferred aspect of the present invention: although the invention has a complex structure, how to provide a more convenient core replacement mode for users can be realized by the following scheme: when the inner rod and the movable ring are in a magnetic attraction matching mode, an inner rod ring and a lantern ring are further arranged between the inner rod and the movable ring; the inner rod ring is arranged at the tail end of the inner rod, and the lantern ring is arranged at the front end of the movable ring; the inner rod ring and the lantern ring are made of magnetic attractants, and at least one of the inner rod ring or the lantern ring is made of permanent magnets; in order to better protect the inner rod ring and the lantern ring, one or more anti-collision isolating pieces can be arranged between the inner rod ring and the lantern ring; the anti-collision spacer can prevent the inner rod ring and the lantern ring from being crashed due to overlarge magnetic attraction; the anti-collision spacer is specifically mounted on the inner rod ring and/or collar.

As a further preferred option: the locking piece is provided with an adjusting groove; the pen clip is fixed at the tail end of the outer rod in a threaded, fastening and/or magnetic attraction mode; and the refill limiting base is also provided with a refill fixing clamping table.

Compared with the prior art, after the technical scheme is adopted, the method has the following beneficial effects:

1. the driving wheel set is adopted as the core of an internal locking structure; the movable wheel group can be composed of one or more gears, and different gear structures and numbers can bring different operation experiences; bringing great surprise to the tedious life of people.

2. The ratchet wheel structure or other structures are utilized to enable the wheel set to rotate unidirectionally, so that the exposure distance of the pen core can be determined according to the thought of a user, and the real random demands are achieved.

3. On the basis of adopting the moving wheel set, the rapidness and scientificity of operation are ensured. The core-out mode and the core-collecting mode are the fastest in the pens on the market.

4. The humanized core-collecting mode is added, and when the pen clamp is operated, the core can be automatically collected, so that when people need to hang the pen on clothes, the core can be automatically collected, and clothes are prevented from being polluted.

5. A more intelligent refill-receiving mode is added, and the refill can be automatically retracted when the pen is received in a bag, pocket or other article and when the pen is placed on a table top, ground or other object.

6. A plurality of self-locking structures are added, and a strong self-locking mode of tail rotation self-locking exists; really achieving complete self-locking, under the conventional condition, if the self-locking structure of the tail part is not manually rotated, the whole pen can continuously keep a self-locking state, and the complex environment is not worried about carelessly exposing the pen core, so that the surrounding environment is polluted, such as: bags and clothing.

7. By adding the belt, the transmission mode of the pen is further increased, so that the combination of the pen is more changeable and rich, and the friction between gears is also reduced.

7. The magnetic ring is adopted to rapidly assemble the inner rod, so that the aim of rapidly replacing the core is fulfilled.

8. The strong self-locking structure at the tail part can also increase the core collecting effect, thereby avoiding the strong self-locking of a user when the refill is not collected, and realizing real foolproof operation.

9. The pen holding area, the vicinity of the pen holding area or the middle area of the pen is expanded by the aid of the lever principle through the additionally arranged linkage pry bar, and the refill can be rapidly retracted through the linkage pry bar.

10. Through multiple quick core collection, humanized core collection and scientific core collection modes, the situation that people forget to collect the pen core is avoided to the greatest extent, and therefore the situation that the pen core is damaged, the surrounding environment is polluted, and personnel are accidentally injured is avoided.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view taken at M-M of FIG. 1 in accordance with the present invention.

Fig. 3 is an enlarged view of a portion of fig. 2 at G in accordance with the present invention.

Fig. 4 is an enlarged view of a portion of fig. 2B in accordance with the present invention.

Fig. 5 is an enlarged view of a portion of fig. 2 a in accordance with the present invention.

Fig. 6 is a perspective view of fig. 2 in accordance with the present invention.

Fig. 7 is a perspective exploded view of embodiment 1 of the present invention.

Fig. 8 is a perspective view of a mechanical gearset according to the invention.

Fig. 9 is a perspective view of the internal rotational lock of the present invention.

Fig. 10 is a front view of embodiment 2 of the present invention.

Fig. 11 is a sectional view of fig. 10 at D in accordance with the present invention.

Fig. 12 is a cross-sectional view at k of fig. 10 in accordance with the present invention.

Fig. 13 is an enlarged view of a portion P of fig. 12 in accordance with the present invention.

Fig. 14 is an enlarged view of a portion of fig. 12 at F in accordance with the present invention.

Fig. 15 is a perspective exploded view of embodiment 2 of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1:

a mechanical pencil as shown in fig. 1 to 9 comprises an inner shaft 1, an outer shaft 2, a mechanical gear set 3, a mechanical clip 4, a refill 5 and a return spring 6. The automatic pen holder 4 is provided with one or more cooperating barbs 41.

The mechanical gear set 3 comprises a movable gear set 31, a shell 32, a movable displacement member 33, a refill limiting base 34 and a locking member 35. The movable displacement member 33 is divided into a movable ring 332 and a displacement member 331, and one or more engaging teeth 3311 are further provided on the displacement member 331. The outer rod 2 is also provided with a matching slot 24 and a fixing straight slot 25. The housing 32 is further provided with a gear slot 322 and a housing fixing protrusion 324.

The above-mentioned driving wheel set 31 is composed of one or more gears 311. The gears 311 in the driving wheel set 31 are mutually meshed. At least one gear 311 of the driving wheel set 31 is in gear engagement with the engagement teeth 3311.

The cooperation effect of at least one gear 311 in the above-mentioned driving wheel set 31 and the cooperation barb 41 is a unidirectional rotation or ratchet structure. The openings of the matching grooves 24 and the gear grooves 322 are the same, and the gear 311 matched with the matching barb 41 generates tooth sum with the matching barb 41 after passing through the matching grooves 24 and the gear grooves 322.

The above-mentioned driving wheel set 31 is installed in the outer casing 32 to form a driving wheel set.

The outer rod 2 is provided with a maximum limiting ring table 21 and a driving wheel limiting ring table 22. The cartridge limiting base 34 is provided with a displacement opening 341 and a base fixing protrusion 342. The base fixing rib 342 and the housing fixing rib 324 are slidably fixed in the fixing straight groove 25.

The movable displacement member 33, the pen core limiting base 34, the driving wheel sleeve, the locking member 35 and the automatic pen holder 4 are sequentially arranged in the outer rod 2 from top to bottom. After the movable displacement member 33, the pen core limiting base 34 and the driving wheel set are sequentially installed, the movable ring 332 can only move up and down between the maximum limiting ring table 21 and the driving wheel limiting ring table 22 through the screw threads or the snap fit between the locking member 35 and the outer rod 2, and the driving wheel set and the pen core limiting base 34 are fixed between the locking member 35 and the driving wheel limiting ring table 22.

The refill 5, the return spring 6 and the inner rod 1 are sequentially arranged in the outer rod 2 from bottom to top. After the inner rod 1 is assembled into the outer rod 2, it is engaged with the movable ring 332 by screwing, engaging and/or magnetic attraction. The return spring 6 is interposed between the cartridge 5 and the inner rod 1. The pen core 5 is abutted against the pen core limiting base 34.

The above-described automatic pen clip 4 is divided into a clip main body D41, a trigger group D42, and a reset component D43. The pen clip main body D41 is divided into a pen clip D411 and a pen clip base D412, the pen clip D411 and the pen clip base D412 are engaged by hinge connection, and the trigger group D42 is divided into a trigger displacement member D421 and a trigger sleeve member D422. The trigger displacement member D421 is sleeved on the pen clip base D412, and is specifically located between the trigger sleeve D422 and the mating pen clip D411. The mating barb 41 is specifically located on the mating clip D411.

The trigger assembly D422 includes a limiting member D4222 and a trigger ring D4221, wherein the limiting member D4222 is fixed on the clip base D412, and the trigger ring D4221 is located between the limiting member D4222 and the trigger displacement member D421. And a triggering slope D42211 is arranged on the inner ring of the triggering ring D4221. When the trigger ring D4221 is extruded by an external force, the trigger ring D4221 is drawn toward the center, and at this time, the trigger ring D4221 is influenced by the trigger slope D42211, the trigger displacement member D421 is pressed, the trigger displacement member D421 is forced to move downward, and the trigger displacement member D421 is conveniently matched with one end of the pen clip D411, then the matched pen clip D411 is pressed downward, so that the other end of the matched pen clip D411 is promoted to tilt, and the teeth and effects between the matched barb 41 and/or the matched teeth 3311 and the driving wheel set 31 disappear, and the pen core 5 is re-hidden in the inner rod 1.

The restoring assembly D43 is composed of one or more substances having elastic, elastic or magnetic force. The resetting component D43 is installed between the pen clip D411 and the pen clip base D412, and when the external force is lost, the resetting component D43 will cause the trigger shifter D421 to move upwards, so as to reset the trigger assembly D422.

The displacement member 331 can move unidirectionally towards the end of the automatic pen holder 4 through the moving wheel set 31, and the matching between the matching barb 41 and the moving wheel set 31 provides a unidirectional rotation locking mechanism for the moving wheel set 31. When the inner rod 1 is pressed to move toward the end of the automatic pen holder 4, the displacement member 331 is moved unidirectionally toward the end of the automatic pen holder 4 by the moving wheel set 31, and the position of the pen core limiting base 34 cannot be moved, so that the pen core gradually exposes the inner rod 1, which is a method for discharging the pen core.

The refill is retracted by eliminating the teeth and effects between the mating barb 41 and/or the mating teeth 3311 and the movable wheel set 31, so that the inner rod 1 moves away from the end of the automatic pen holder 4 under the elastic force of the return spring 6, and the movable ring 332 is in contact with the maximum limit ring table 21 again. At this time, when the mating distance between the inner rod 1 and the outer rod 2 is maximized, the pen core 5 is newly stored in the inner rod 1.

According to the concrete scheme of the second core-collecting operation mode, the outer rod 2 is further provided with a prying bar groove 23, the prying bar groove 23 is further internally provided with a linkage prying bar 7, and the linkage prying bar 7 is in hinged connection with the outer rod 2. The above-mentioned linkage crow bar 7 is divided into pressing portion 71 and linkage portion 72, the pressing portion 71 of the above-mentioned linkage crow bar 7 is placed in the lower half section of the external lever 2, and the linkage portion 72 of the above-mentioned linkage crow bar 7 is placed in the upper half section of the external lever 2, specifically placed under the holding table 42 of the automatic pen holder 4.

When the pen core 5 is exposed and the pressing portion 71 is pressed, the linkage portion 72 is tilted upward, and when the linkage portion 72 is tilted upward, the clamping table 42 is driven, so that the automatic pen clip 4 is deformed, and the engaging barb 41 is separated from the gear 311 of the driving wheel set 31. The cartridge 5 is newly stored in the inner shaft 1.

The matching mode of the expansion gears can be used for obtaining different operation experiences so as to meet the demands of different customer groups, and the specific scheme is as follows: all or part of the gears 311 in the driving wheel set 31 are further provided with speed change gears, so that the moving speed between the displacement member 331 and the matching barb 41 is changed, the moving speed is determined by the combination mode of the speed change gears, and the rotating distance of the gears 311 with the matching barb 41 can be controlled under the condition that the moving distance of the displacement member 331 is unchanged, and the longer the rotating distance is, the more the teeth and the times between the gears 311 with the matching barb 41 and the matching barb 41 are, and conversely, the less the teeth and the times between the gears 311 with the matching barb 41 and the matching barb 41 are. By controlling the amount of teeth and the number of teeth between the gear 311 engaged with the teeth of the barb 41 and the engagement barb 41, different engagement forces and the number of teeth and sounds produced can be achieved.

As a first core-collecting operation mode, the specific scheme is as follows: the housing 32 is further provided with a reset notch 321. The uppermost part of the reset notch 321 is provided with a switching slope 3211, and the lowermost part is provided with a reset slope 3212. The displacement member 331 is further provided with a switching spool 3. The above-mentioned switch slide post 3 slides in reset notch 321, through the cooperation between switch slide post 3 and reset notch 321, can make refill 5 switch to hidden state from writing state, and the concrete cooperation mode is as follows:

When the pen core 5 is in an exposed state, the switching slide column 3 is close to the top end of the reset notch 321, at this time, the inner rod 1 is further moved towards the end of the automatic pen holder 4, the switching slide column 3 can be shifted through the switching slope 3211, so that the displacement member 331 is forced to shift, and the teeth and states between the displacement member 331 and the driving wheel set 31 disappear, so that the displacement member 331 is not constrained by the ratchet effect of the driving wheel set 31, the displacement member 331 is indirectly influenced by the reset spring 6 and is displaced downwards, the switching slide column 3 moves to the bottom end of the reset notch 321, the shifting of the displacement member 331 occurs before the reset slope 3212, the teeth and states between the displacement member 331 and the driving wheel set 31 are reestablished, and at this time, the movable ring 332 is in mutual collision with the maximum limiting ring table 21 again. At this time, when the mating distance between the inner rod 1 and the outer rod 2 is maximized, the pen core 5 is newly stored in the inner rod 1.

As a preferred aspect of the present invention: in order to ensure that the self-locking effect is further realized on the premise of having a third core-collecting operation mode, namely an automatic core-collecting function, the method can be realized by the following scheme: when the trigger sleeve D422 adopts the scheme of the limiting member D4222 and the trigger ring D4221, the pen clip base D412 is divided into an internal rotation self-locking member D4121 and a base outer ring D4122; the limiting member D4222 is divided into an outer rotary member D42221 and an inner tightening member D42222; a self-locking movable member D5 is arranged between the inner rotation self-locking member D4121 and the locking member 35; the inner rotation self-locking member D4121 is provided with a rotation boss D41211, a control boss D41212 and a spin engaging portion D41213; the bottom of the external rotating piece D42221 is provided with a rotating groove D422211 matched with the rotating boss D41211; a control groove D51 matched with the control boss D41212 is arranged on the self-locking movable piece D5; after the rotating groove D422211 and the rotating boss D41211 are matched, the inner tightening piece D42222 is matched with the inner rotation self-locking piece D4121 in a threaded, magnetic attraction, adhesive, clamping, riveting or welding mode; the shapes of the rotating boss D41211 and the control boss D41212 are not cylindrical or conical; the self-locking movable piece D5 is matched with the outer rod 2 through threads; the outer rod 2 is also provided with a spin ring 36, and the spin engaging portion D41213 is engaged between the base outer ring D4122 and the spin ring 36.

In order to ensure that the refill belongs to a refill-collecting state rather than a refill-discharging state during self-locking, the refill is prevented from being coincidently and clumsy, so that the refill is collected before self-locking, however, manual operation is easy to forget, and the refill is collected before self-locking by the following scheme; one or more core receiving bosses D52 are also arranged on the self-locking movable piece D5;

the core receiving boss D52 rotates or deforms the displacement member 331, so that the teeth and the relationship between the displacement member 331 and the driving wheel set 31 are eliminated, and the pen core is stored in the inner rod 1;

through the self-locking function of the core-collecting convex block 65 and the self-locking movable piece D5, when the pen is in a refill-out state, the pen can directly collect the refill by directly rotating the self-locking piece 63, and self-locking is achieved.

Although the invention has a complex structure, how to provide a more convenient core replacement mode for users can be realized by the following scheme: when the inner rod 1 and the movable ring 332 are magnetically coupled, an inner rod ring 81 and a collar 82 are further provided between the inner rod 1 and the movable ring 332. The inner rod ring 81 is disposed at the end of the inner rod 1, and the collar 82 is disposed at the front end of the movable ring 332. The inner rod ring 81 and the collar 82 are made of magnetic attraction materials, and at least one of the inner rod ring 81 and the collar 82 is made of permanent magnets. To better protect the inner rod ring 81 and the collar 82, one or more anti-collision spacers 83 may be further disposed between the inner rod ring 81 and the collar 82. The anti-collision spacer 83 prevents the inner rod ring 81 and the collar 82 from being crashed due to excessive magnetic attraction. The anti-collision spacer 83 is specifically attached to the inner rod ring 81 and/or collar 82.

For easy disassembly and assembly, and for stability of use, the locking member 35 is provided with an adjustment groove 351 to prevent the cartridge from shaking. The pen holder 4 is fixed to the end of the outer rod 2 by means of threads, snap-fit and/or magnetic attraction. The refill stopper base 34 is further provided with a refill fixing block 343.

Example 2:

a mechanical pencil as shown in fig. 8 to 15 comprises an inner shaft 1, an outer shaft 2, a mechanical gear set 3, a mechanical clip 4, a pen core 5 and a return spring 6. The automatic pen holder 4 is provided with one or more cooperating barbs 41.

The trigger set D422 includes a spherical trigger D4223, the spherical trigger D4223 and the clip base D412 are connected by means of a knuckle bearing, and a trigger ring protrusion D42231 is provided at the lower end of the spherical trigger D4223. The inner side of the trigger displacement member D421 is further provided with a conical groove D4211, when the spherical trigger D4223 is pressed by an external force, the spherical trigger D4223 is inclined to the side, at this time, the conical groove D4211 is influenced by the trigger ring protrusion D42231 to force the trigger displacement member D421 to move downward, and the lower end of the trigger displacement member D421 is conveniently matched with one end of the pen clip D411, then the matched pen clip D411 is pressed downward, so that the other end of the matched pen clip D411 is tilted, the teeth and effects between the matched barb 41 and/or the matched teeth 3311 and the driving wheel set 31 disappear, and the pen core 5 is re-hidden in the inner rod 1.

The two embodiments described above all have a core-out mode and four core-collecting modes, and the specific operation modes are as follows:

core-out mode: the tiger mouth clamps the outer rod, the index finger and the middle finger clamp the front end of the inner rod, and then the index finger and the middle finger exert force to shrink; so that the inner rod is contracted inwards towards the outer rod; thereby coming out of the core.

The core-collecting mode is as follows: the first core-collecting mode is consistent with the core-discharging mode, the repeated operation is carried out, the second core-collecting mode is carried out by pressing the pressing part, and the third core-collecting mode is carried out by controlling the matched pen clip D411 to bend the pen clip; however, the pen clip D411 does not need to be controlled and matched deliberately, and the core can be folded only by hanging the pen on clothes or other articles normally; the fourth type of core collecting realizes automatic core collecting through the trigger group D42, so long as the pen is not in a normal writing state, and is not held or suspended by people, when the pen is completely placed in other places such as a desktop and a bag, the trigger group D42 is triggered, thereby realizing automatic core collecting.

The two embodiments have different automatic core-collecting effects according to the following two conditions;

1. when the outer diameters of the trigger ring D4221 and the ball-shaped trigger D4223 are larger than the outer diameters of the limiting member D4222, the outer rod 2, the movable displacement member 33, the matched pen clip D411 and the pen clip base D412, at least an automatic core folding effect is achieved, however, whether the specific effect can achieve three hundred and six degrees of core folding without dead angles is mainly whether the structure matched with the pen clip D411 is easy to support on the plane or whether the requirement of the second condition is met, and only when the structure matched with the pen clip D411 is not easy to support on the plane, the automatic core folding can be formed by three hundred and sixty degrees.

2. When the outer diameter of the trigger ring D4221 and the spherical trigger D4223 is larger than the outer diameter of the combined pen clip main body D41 and the outer rod 2; and when the robot pen is placed on a plane, only the trigger ring D4221 or the ball-shaped trigger D4223 is in contact with the plane at the rear half of the robot pen; the end of the matched barb 41 matched with the pen clip D411 can be displaced outwards by a certain distance, and the specific moving distance at least can enable teeth and effects between the matched barb 41 and the driving wheel set 31 to disappear, so that the automatic refill collection of the refill 5 can be ensured, and the refill can be stored in the inner rod 1 again; at this time, no matter whether the structure of the pen clip D411 is easy and the support is formed on the plane, three hundred and sixty degrees of automatic triggering core folding can be realized.

In order to further expand the demands of the user population, the demands of DIY and customization of more people are met: the gears 311 and/or the speed change gears between the driving wheel sets 31 can also adopt belt transmission.

While the foregoing is directed to the preferred embodiments of the present invention, other and further modifications and changes may be made by those skilled in the art without departing from the principles of the invention, which is also intended to be included within the scope of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An automatic mechanical pen, characterized in that: comprises an inner rod (1), an outer rod (2), a mechanical gear set (3), an automatic pen clip (4), a pen refill (5) and a return spring (6); one or more matched barbs (41) are arranged on the automatic pen clip (4);

the mechanical gear set (3) comprises a movable gear set (31), a shell (32), a movable displacement member (33), a refill limiting base (34) and a locking member (35); the movable displacement member (33) is divided into a movable ring (332) and a displacement member (331), and one or more matched teeth (3311) are further arranged on the displacement member (331); the outer rod (2) is also provided with a matched slot (24); the shell (32) is also provided with a gear slot (322);

the driving wheel set (31) consists of one or more gears (311); the gears (311) in the driving wheel set (31) are mutually meshed; at least one gear (311) in the driving wheel set (31) is in gear fit with the matched teeth (3311);

the matching effect of at least one gear (311) in the driving wheel set (31) and the matching barb (41) is a unidirectional rotation or ratchet structure; the openings of the matching grooves (24) and the gear grooves (322) are the same, and after the gears (311) matched with the matching barbs (41) pass through the matching grooves (24) and the gear grooves (322), teeth and teeth are generated with the matching barbs (41);

The driving wheel set (31) is arranged in the shell (32) to form a driving wheel set;

the outer rod (2) is internally provided with a maximum limiting ring table (21) and a driving wheel limiting ring table (22); a displacement opening (341) is arranged on the refill limiting base (34);

the movable displacement member (33), the pen core limiting base (34), the driving wheel sleeve, the locking member (35) and the automatic pen clip (4) are sequentially arranged in the outer rod (2) from top to bottom; after the movable displacement member (33), the pen core limiting base (34) and the driving wheel sleeve are sequentially installed, the movable ring (332) can only move up and down between the maximum limiting ring table (21) and the driving wheel limiting ring table (22) through threads or snap fit between the locking member (35) and the outer rod (2), and the driving wheel sleeve and the pen core limiting base (34) are fixed between the locking member (35) and the driving wheel limiting ring table (22);

the pen refill (5), the reset spring (6) and the inner rod (1) are sequentially arranged in the outer rod (2) from bottom to top; after the inner rod (1) is installed into the outer rod (2), the inner rod is matched with the movable ring (332) in a threaded, clamping and/or magnetic attraction mode; the reset spring (6) is arranged between the pen core (5) and the inner rod (1); the pen refill (5) is mutually abutted with the pen refill limiting base (34);

The automatic pen clip (4) is divided into a pen clip main body (D41), a trigger group (D42) and a reset component (D43); the pen clip main body (D41) is divided into a matched pen clip (D411) and a pen clip base (D412), the matched pen clip (D411) and the pen clip base (D412) are matched through hinged connection, and the trigger group (D42) is divided into a trigger displacement piece (D421) and a trigger sleeve piece (D422); the trigger displacement piece (D421) is sleeved on the pen clip base (D412) and is specifically positioned between the trigger sleeve piece (D422) and the matched pen clip (D411); the matched barb (41) is specifically positioned on the matched pen clip (D411);

the trigger sleeve (D422) can indirectly control the trigger displacement member (D421) to move downwards in the following two ways:

1. the trigger sleeve (D422) comprises a limiting piece (D4222) and a trigger ring (D4221), wherein the limiting piece (D4222) is fixed on the pen clip base (D412), and the trigger ring (D4221) is positioned between the limiting piece (D4222) and the trigger displacement piece (D421); a triggering slope (D42211) is arranged on the inner ring of the triggering ring (D4221); when the trigger ring (D4221) is extruded by external force, the trigger ring is drawn close to the center, at the moment, the trigger ring is influenced by a trigger slope (D42211), the trigger displacement member (D421) is pressed, the trigger displacement member (D421) is forced to move downwards, one end of the trigger displacement member (D421) is conveniently matched with the pen clamp (D411), the matched pen clamp (D411) is pressed downwards, so that the other end of the matched pen clamp (D411) is promoted to tilt, teeth and effects between the matched barb (41) and/or the matched teeth (3311) and the movable wheel set (31) are eliminated, and the pen core (5) is stored in the inner rod (1) again;

2. The trigger kit (D422) comprises a spherical trigger (D4223), wherein the spherical trigger (D4223) is connected with the pen clip base (D412) through a joint bearing, and a trigger ring boss (D42231) is arranged at the lower end of the spherical trigger (D4223); the inner side of the trigger displacement member (D421) is also provided with a conical groove (D4211), when the spherical trigger (D4223) is extruded by external force, the spherical trigger is inclined to the side, at the moment, the conical groove (D4211) is influenced by a trigger ring bulge (D42231) to force the trigger displacement member (D421) to move downwards, and the lower part of the trigger displacement member (D421) is convenient to match with one end of a pen clip (D411), the matched pen clip (D411) is pressed downwards, so that the other end of the matched pen clip (D411) is promoted to tilt, teeth and effects between the matched barb (41) and/or the matched teeth (3311) and the driving wheel group (31) disappear, and the pen core (5) is stored in the inner rod (1) again;

the resetting component (D43) is composed of one or more substances with elasticity, elasticity or magnetic force; the reset component (D43) is arranged between the matched pen clip (D411) and the pen clip base (D412), and when the external force disappears, the reset component (D43) can promote the trigger displacement member (D421) to move upwards, so that the trigger sleeve member (D422) is reset;

The displacement piece (331) can move unidirectionally towards the end of the automatic pen holder (4) through the movable wheel group (31), and the matched barb (41) and the movable wheel group (31) are matched to provide a unidirectional rotation locking mechanism for the movable wheel group (31); when the inner rod (1) is extruded to move towards the end of the automatic pen holder (4), the displacement piece (331) moves unidirectionally towards the end of the automatic pen holder (4) through the movable wheel set (31), and the position of the pen core limiting base (34) cannot move, so that the pen core can gradually expose the inner rod (1), and the method is a method for discharging the pen core;

the refill is retracted by eliminating teeth and effects between the matched barb (41) and/or the matched teeth (3311) and the driving wheel set (31), so that the inner rod (1) moves away from the end of the automatic pen holder (4) under the elasticity of the reset spring (6), and the movable ring (332) is mutually abutted against the maximum limiting ring table (21) again; at this time, when the matching distance between the inner rod (1) and the outer rod (2) reaches the maximum, the pen core (5) is stored in the inner rod (1) again.

2. A robotic pen as claimed in claim 1, wherein: a prying bar groove (23) is further formed in the outer bar (2), a linkage prying bar (7) is further arranged in the prying bar groove (23), and the linkage prying bar (7) is in hinged connection fit with the outer bar (2); the linkage pry bar (7) is divided into a pressing part (71) and a linkage part (72), the pressing part (71) of the linkage pry bar (7) is arranged at the lower half section of the outer bar (2), and the linkage part (72) of the linkage pry bar (7) is arranged at the upper half section of the outer bar (2) and is particularly arranged under the clamping table (42) of the automatic pen clamp (4);

When the pen refill (5) is in an exposed state and the pressing part (71) is pressed, the linkage part (72) can be tilted upwards, and when the linkage part (72) is tilted upwards, the clamping table (42) is driven, so that the automatic pen clip (4) is deformed, and the matched barb (41) is separated from the gear (311) of the driving wheel set (31); the refill (5) is stored in the inner rod (1) again.

3. A robotic pen as claimed in claim 1, wherein: all or part of gears (311) in the driving wheel set (31) adopt speed change gears, so that the moving speed between the displacement piece (331) and the matched barb (41) is changed, the moving speed is determined by a combination mode of the speed change gears, under the condition that the moving distance of the displacement piece (331) is unchanged, the rotating distance between the gear (311) matched with the barb (41) and the gear (311) can be controlled, and the longer the rotating distance is, the more and the times between the gear (311) matched with the barb (41) and the matched barb (41) are, and conversely, the fewer the teeth and times are; by controlling the teeth and the number of times between the gear (311) and the mating barb (41) which are engaged with the teeth of the barb (41), different engagement forces and the number of teeth and sounds produced can be achieved.

4. A robotic pen as claimed in any one of claims 1, wherein: the shell (32) is also provided with a reset notch (321); a switching slope (3211) is arranged at the uppermost part of the reset notch (321), and a reset slope (3212) is arranged at the lowermost part; the displacement piece (331) is also provided with a switching slide column (3312); the switching slide post (3312) slides in the reset notch (321), and the pen core (5) can be switched from a writing state to a hiding state through the cooperation between the switching slide post (3312) and the reset notch (321), and the specific cooperation mode is as follows:

when the refill (5) is in an exposed state, the switching slide post (3312) is close to the top end of the reset notch (321), at the moment, the inner rod (1) is further moved towards the end of the automatic pen holder (4), the switching slide post (3312) can be shifted through the switching slope (3211) so as to force the displacement piece (331) to shift, teeth and states between the displacement piece (331) and the driving wheel group (31) disappear, so that the displacement piece (331) is not restrained by the ratchet effect of the driving wheel group (31), the displacement piece (331) can be influenced by the indirect of the reset spring (6) and is downwards shifted, the switching slide post (3312) is moved to the bottom end of the reset notch (321), the shifting piece (331) is shifted to generate reset through the reset slope (3212), the teeth and the states between the displacement piece (331) and the driving wheel group (31) are reestablished, and at the moment, the movable ring (332) is in mutual collision with the maximum limiting ring table (21) again; at this time, when the matching distance between the inner rod (1) and the outer rod (2) reaches the maximum, the pen core (5) is stored in the inner rod (1) again.

5. A robotic pen as claimed in claim 1, wherein: when the triggering sleeve (D422) adopts a scheme of a limiting piece (D4222) and a triggering ring (D4221), the pen clip base (D412) is divided into an internal rotation self-locking piece (D4121) and a base outer ring (D4122); the limiting piece (D4222) is divided into an outer rotating piece (D42221) and an inner tightening piece (D42222); a self-locking movable piece (D5) is arranged between the internal rotation self-locking piece (D4121) and the locking piece (35); a rotating boss (D41211), a control boss (D41212) and a spin clamping part (D41213) are arranged on the internal rotation self-locking piece (D4121); the bottom of the external rotating piece (D42221) is provided with a rotating groove (D422211) matched with the rotating boss (D41211); a control groove (D51) matched with the control boss (D41212) is formed in the self-locking movable piece (D5); the inner tightening piece (D42222) is matched with the inner rotation self-locking piece (D4121) in a threaded, magnetic attraction, adhesive, clamping, riveting or welding mode after the rotation groove (D422211) is matched with the rotation boss (D41211); the shapes of the rotary boss (D41211) and the control boss (D41212) are not cylindrical or conical; the self-locking movable piece (D5) is matched with the outer rod (2) through threads; the outer rod (2) is internally provided with a spin ring table (36), and the spin clamping part (D41213) is clamped between the base outer ring (D4122) and the spin ring table (36).

6. A robotic pen as claimed in claim 5, wherein: one or more core collecting bosses (D52) are further arranged on the self-locking movable piece (D5); the self-locking movable part (D5) eliminates the teeth and the relation between the displacement part (331) and the driving wheel group (31) in the following two ways, so that the pen core is hidden in the inner rod (1);

1. the self-locking movable part (D5) or the displacement part (331) is also provided with a sliding chamfer, and the displacement part (331) is bent in the direction opposite to the direction of the driving wheel set (31) in a mode of downwards moving the self-locking movable part (D5) and matching the sliding chamfer, so that the bending causes the teeth and the relationship between the displacement part (331) and the driving wheel set (31) to disappear, and the pen core is hidden in the inner rod (1); if so, a space for bending the displacement member (331) needs to be reserved in advance in the driving wheel set (31); the angle of the sliding chamfer is between 10 and 80 degrees;

2. the core-collecting boss (D52) rotates or deforms the displacement piece (331), and the teeth and the relations between the displacement piece (331) and the driving wheel group (31) disappear, so that the pen core is hidden in the inner rod (1);

Through the self-locking function of the core-collecting convex block (65) and the self-locking movable piece (D5), when the pen is in a refill-out state, the pen can directly collect the refill by directly rotating the self-locking piece (63), and self-locking is achieved.

7. A robotic pen as claimed in claim 3, wherein: the gears (311) and/or the speed change gears between the driving wheel sets (31) can also adopt belt transmission.

8. The automatic mechanical pen of any one of claims 1-7, wherein: when the inner rod (1) and the movable ring (332) are in a magnetic attraction matching mode, an inner rod ring (81) and a lantern ring (82) are further arranged between the inner rod (1) and the movable ring (332); the inner rod ring (81) is arranged at the tail end of the inner rod (1), and the lantern ring (82) is arranged at the front end of the movable ring (332); the inner rod ring (81) and the sleeve ring (82) are made of magnetic attractants, and at least one of the inner rod ring (81) or the sleeve ring (82) is made of a permanent magnet; in order to better protect the inner rod ring (81) and the lantern ring (82), one or more anti-collision isolating pieces (83) can be arranged between the inner rod ring (81) and the lantern ring (82); the anti-collision spacer (83) can prevent the inner rod ring (81) and the sleeve ring (82) from being crashed due to overlarge magnetic attraction force; the anti-collision spacer (83) is specifically mounted on the inner rod ring (81) and/or the collar (82).

9. A robotic pen as claimed in any one of claims 8, wherein: the outer diameters of the trigger ring (D4221) and the spherical trigger (D4223) are larger than the outer diameters of the limiting piece (D4222), the outer rod (2), the movable displacement piece (33), the matched pen clip (D411) and the pen clip base (D412).

10. A robotic pen as claimed in any one of claims 8, wherein: the outer diameter of the trigger ring (D4221) and the spherical trigger (D4223) is larger than the outer diameter of the pen clip main body (D41) and the outer rod (2) after being combined; and when the robot pen is placed on a plane, only the trigger ring (D4221) or the ball-shaped trigger (D4223) of the rear half of the robot pen is in contact with the plane; and still need ensure that the cooperation barb (41) end of cooperation pen clip (D411) this moment still can outwards displace certain distance, the distance that specifically removes can make tooth and the effect between cooperation barb (41) and the movable wheel group (31) disappear at least to ensure that refill (5) can accomplish automatic core collection, hide in interior pole (1) again.