CN116922983B - A press pen - Google Patents

Abstract

The invention provides a pressing pen, which comprises a pen shell, a pen core and an automatic rebound component for driving the pen core to extend or automatically retract into the pen shell, wherein the pen shell comprises a pen point shell and a pen body shell, the pen core comprises a writing part and an extension part which are mutually connected and coaxially arranged, the pen point shell is provided with an inlet and an outlet for the writing part to enter and exit and a guide channel for the extension part to slide forwards and backwards, the outer wall of the extension part is contacted with or arranged close to the inner wall of the guide channel, and the extension part is not separated from the guide channel all the time in the front-rear direction so as to prevent the writing part from contacting with the inlet and the outlet. The pen refill is not obviously deflected in the process of entering and exiting the pen nib shell, the problem that pen water at the writing part pollutes the inlet and outlet of the pen nib shell is avoided, the cleanness of products is ensured, the stored objects are prevented from being polluted, the pen refill is not easy to shake, the problem of poor concentricity in the process of entering and exiting the pen refill is really solved, and the automatic rebound structure is arranged to further prevent the stored objects from being polluted.

Description

Pressing pen

Technical Field

The invention relates to the technical field of stationery, in particular to a pressing pen.

Background

The existing gel pen or ball pen has the problem that the pen is inclined when being pressed by the pen, the tip of the pen core often remains pen water when writing, and the pen water contacts with the edge of the pen point of the pen shell in the process of recycling the pen core to the pen shell, so that the pen point is easy to become dirty, and the stored pen bags, clothes, books or bags and other articles can be stained.

Disclosure of Invention

In order to solve at least one aspect of the problems, the invention provides a pressing pen, which comprises a pen shell, a pen core and an automatic rebound component for driving the pen core to extend out of or retract automatically into the pen shell, wherein the pen shell comprises a pen point shell and a pen body shell which are connected with each other, the automatic rebound component is movably connected with the pen body shell, the pen core comprises a writing part and an extension part which are connected with each other and are coaxially arranged, the pen point shell is provided with an inlet and an outlet for the writing part to enter and exit and a guide channel for the extension part to slide back and forth, the outer wall of the extension part is contacted with or is close to the inner wall of the guide channel, the pen core is provided with an extending writing state and a retracting storage state, the writing part extends out of the inlet and the outlet when in the extending writing state, the writing part is retracted and hidden into the inlet when in the retracting storage state, and the extension part is not separated from the guide channel in the front and back direction to prevent the writing part from contacting with the inlet and the guide channel when the pen core is in the retracting storage state.

Optionally, the pen body shell comprises a holding rod and a leaning rod which are detachably connected with each other, the automatic rebound assembly is movably connected with the leaning rod, the automatic rebound assembly comprises a pressing piece, a conversion piece and a pen clip, the pressing piece is movably connected with the conversion piece, a plurality of first gear teeth are arranged on the outer wall of the pressing piece at intervals, a first wheel groove which is in sliding fit with the first gear teeth is arranged on the inner wall of the leaning rod, a second gear tooth is arranged on the outer wall of the conversion piece, a second wheel groove which is in sliding fit with the second gear tooth is arranged on the inner wall of the leaning rod, a limit block is arranged on the outer wall of the conversion piece, a limit block which is suitable for being matched with the limit block is arranged on the pen clip, and a through hole through which the limit block penetrates is arranged on the leaning rod.

Optionally, the pen clip keep away from the one end of dog with lean on the outer wall hinge connection of pole, the stopper is located the place ahead of second teeth of a cogwheel, the stopper with the quantity of second teeth of a cogwheel is two, the stopper with the setting of second teeth of a cogwheel one-to-one.

Optionally, the inlet and the outlet are openings at the front end of the guide channel, the guide channel and the inlet and the outlet are coaxially arranged, the inner diameter of the inlet and the outlet is not smaller than the inner diameter of the guide channel, and the refill and the guide channel are coaxially arranged.

Optionally, the guide channel includes a plurality of long ribs arranged at intervals.

Optionally, the difference between the inner diameter of the guide channel and the outer diameter of the extension is less than or equal to 30 μm.

Optionally, the pen point shell is further provided with a spring installation channel suitable for installing a spring, the front end of the spring installation channel is provided with a step, the pen core is provided with an abutting table, two ends of the spring are respectively abutted with the step and the abutting table, the spring installation channel and the guide channel are coaxially arranged, and the inner diameter of the spring installation channel is larger than that of the guide channel.

Optionally, the pen body casing includes holding rod and the leaning rod of mutual detachable connection, the holding rod overcoat is equipped with floated cover of holding, floated cover of holding is including holding the cover body and locating with protruding the bellying of holding cover body inner wall, bellying with the holding rod butt, when realizing writing hold the cover body and be in suspended state.

Optionally, the holding sleeve body and the protruding part are made of silica gel, the holding sleeve body and the protruding part are integrally injection molded, and a gap between the holding sleeve body and the holding rod is communicated with the outside air.

Optionally, front openings and rear openings are respectively formed at the front end and the rear end of the holding sleeve body, the front openings and the rear openings are used for communicating the gaps with the outside air, the protruding portions comprise first protruding portions and second protruding portions, the first protruding portions and the second protruding portions are respectively arranged at the front openings and the rear openings, the first protruding portions comprise first arc protruding sections which are arranged at intervals in multiple sections, a first gap is formed between every two adjacent first arc protruding sections at intervals, the second protruding portions comprise second arc protruding sections which are arranged at intervals in multiple sections, a second gap is formed between every two adjacent second arc protruding sections at intervals, the first gaps and the second gaps are arranged in a staggered mode, the protruding portions comprise protruding points which are arranged at intervals, and the protruding points are distributed on the inner wall of the holding sleeve body at intervals.

Compared with the prior art, the pressing pen has the advantages that the writing part and the extending part are coaxially arranged, the extending part is in sliding contact with the guide channel or is close to the extending part, the fact that the pen core is in obvious deflection in the process of entering and exiting the pen point shell is guaranteed, the writing part is guaranteed not to touch the inlet and the outlet when entering and exiting the pen point shell, the problem that pen water at the writing part contaminates the inlet and the outlet of the pen point shell is avoided, the cleaning of products is guaranteed, the stored objects are prevented from being soiled, the guide channel is arranged to enable the pen core to be difficult to shake in the writing process, the structure of the pen point shell is stronger, the inlet and the outlet are difficult to break, the problem that concentricity of the pen core entering and exiting process is poor is truly solved, the problem that the outside of the pen point shell is dirty to cause pollution to writing and storage scenes due to the fact that the pen core is in the writing and the pen core shakes in the writing experience is solved, and writing fatigue is caused to a writer in the process of writing and the fact that the pen core is in the writing and the storage is further prevented from polluting the stored objects due to the fact.

Drawings

FIG. 1 is a block diagram of a pen tip structure according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a nib structure according to an embodiment of the present invention;

FIG. 3 is a perspective cross-sectional view of a pen tip housing according to an embodiment of the present invention;

Fig. 4 is a structural view of a cartridge according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a pen tip housing according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a pen tip housing according to another embodiment of the present invention;

FIG. 7 is a block diagram of a floating grip of an embodiment of the present invention;

FIG. 8 is a perspective view of a floating grip of an embodiment of the present invention;

FIG. 9 is a block diagram of a pen according to an embodiment of the present invention;

FIG. 10 is a perspective view of a backrest bar according to an embodiment of the invention;

FIG. 11 is an exploded view of the arm rest and automatic rebound assembly of an embodiment of the present invention.

Reference numerals illustrate:

1. Suspension grip, 11, grip body, 111, front opening, 112, rear opening, 12, first boss, 121, first arc boss, 122, first gap, 13, second boss, 131, second arc boss, 132, second gap, 14, bump, 2, grip lever, 3, rest lever, 31, first wheel groove, 32, second wheel groove, 33, through hole, 34, belt line portion, 4, automatic rebound component, 41, pressing member, 411, first gear tooth, 42, conversion member, 421, second gear tooth, 422, stopper, 43, pen clip, 431, stopper, 5, pen tip housing, 51, inlet and outlet, 52, guide channel, 521, long boss, 53, spring mounting channel, 531, step, 6, pen core, 61, writing portion, 62, extension, 63, abutment table.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", etc. indicate an orientation or positional relationship based on the orientation or positional relationship when the product is normally used.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The drawings of the embodiments of the present invention are provided with a coordinate axis Y, wherein the forward direction of the Y axis represents the front and the reverse direction of the Y axis represents the rear.

The embodiment of the invention provides a pressing pen, which is shown in fig. 1, 2, 3, 4 and 9 and comprises a pen shell, a pen core 6 and an automatic rebound component 4 for driving the pen core 6 to extend or retract automatically into the pen shell, wherein the pen shell comprises a pen point shell 5 and a pen body shell which are connected with each other, the automatic rebound component 4 is movably connected with the pen body shell, the pen point shell 5 comprises a writing part 61 and an extension part 62 which are connected with each other and coaxially arranged, the pen point shell 5 is provided with an inlet and outlet 51 for the writing part 61 to enter and exit and a guide channel 52 for the extension part 62 to slide back and forth, the outer wall of the extension part 62 is contacted with or close to the inner wall of the guide channel 52, the pen core 6 is provided with an extending writing state and a retracting storage state, the writing part 61 is extended out of the inlet and outlet 51 when in the extending writing state, the writing part 61 is retracted into the writing part 51 when in the retracting storage state, the writing part 61 is retracted into the inlet and outlet 51, the writing part 6 is in the extending state or the extending state when the extending state is not contacted with the guide channel 52 when the extending state is switched from the extending state or the extending state and the extending storage state.

The end of the pen core 6 far away from the writing part 61 is suitable for being connected with the automatic rebound component 4, the pen core 6 can move back and forth relative to the pen tip shell 5 through the automatic rebound component 4, namely, the pen core 6 can be switched between an extending writing state and a retracting storage state, the writing part 61 is used for writing characters or drawing figures by pen water, the outer diameter of the writing part 61 is generally smaller than that of the extending part 62, the writing part 61 is prevented from touching the inlet and outlet 51 when entering and exiting the pen tip shell 5, the outer wall of the extending part 62 is in sliding contact with or is close to the inner wall of the guide channel 52, the extending part 62 can be prevented from moving stably in the guide channel 52, the writing part 61 is prevented from touching the inlet and outlet 51 when entering and exiting the pen tip shell 5, the guide channel 52 is preferably a cylindrical hole, a horn hole, a square hole, an elliptic hole and the like, the appearance structure of the extending part 61 extends out of the inlet and outlet 51 to the outside, the writing part 61 is prevented from being exposed out of the pen tip shell 5, and the writing part 61 is retracted into the inlet and outlet 51 from the inlet and outlet 51, the writing part 61 is retracted into the pen tip shell 5, and the pen tip shell 5 is retracted from the inlet and stored in the inlet and outlet 51.

In the nib structure of this embodiment, the writing part 61 and the extension part 62 are coaxially arranged, the extension part 62 is in sliding contact with the guide channel 52 or is close to the extension part, so that the problem that the writing part 61 cannot touch the inlet and outlet 51 when entering and exiting the nib housing 5 is solved, the problem that the pen water of the writing part 61 contaminates the inlet and outlet 51 of the nib housing 5 is avoided, the cleanliness of products is ensured, the stored objects are prevented from being polluted, the guide channel 52 is arranged, the pen core 6 is not easy to shake in the writing process, the structure of the nib housing 5 is stronger, the inlet and outlet 51 is not easy to break, the problem that the concentricity of the pen core 6 in the entering and exiting process is poor is really solved, the problem that the pen core 6 is polluted for writing and storing scenes due to the fact that the outside of the nib housing 5 is dirty due to the phenomenon of ink turning is solved, meanwhile, the problem that the writing fatigue is brought to the writing of the pen core 6 in the writing beating process of the pen core 6 in the writing experience is solved, and in addition, the automatic rebound structure is arranged, and the dirty storage is prevented.

Alternatively, as shown in fig. 2, the inlet and outlet 51 is an opening at the front end of the guide channel 52, and the inlet and outlet 51 is directly disposed at the front opening of the guide channel 52, so as to ensure compactness of the structure and make the length of the pen tip housing 5 in the front-rear direction as short as possible. In addition, the guide passage 52 and the inlet/outlet 51 may be provided at a distance.

Optionally, as shown in fig. 2, the guide channel 52 is coaxially disposed with the inlet and outlet 51, and the inner diameter of the inlet and outlet 51 is not smaller than the inner diameter of the guide channel 52, that is, the inner diameter of the inlet and outlet 51 is greater than or equal to the inner diameter of the guide channel 52, so as to further ensure that the writing portion 61 does not touch the edge of the inlet and outlet 51.

Alternatively, as shown in fig. 2, the guide channel 52 is a cylindrical hole, the shape of the pen core 6 is generally composed of a cylindrical structure, the shape of the guide channel 52 is matched with the shape of the pen core 6, the processing of the cylindrical hole is convenient, and the structure is reliable.

Alternatively, as shown in fig. 5 and 6, the guide channel 52 includes a plurality of long protruding strips 521 disposed at intervals, the inner surfaces of the long protruding strips 521 are combined to form the guide channel 52, the inner surfaces of the long protruding strips 521 are disposed coaxially with the inlet and outlet 51, as shown in fig. 5, the inner wall of the pen tip housing 5 is a straight cylinder surface, as shown in fig. 6, the inner wall of the pen tip housing 5 is a horn surface, and both the straight cylinder surface and the horn surface can form the guide channel 52 with the long protruding strips 521 extending inwards to form a cylindrical hole, so that the improvement is convenient, the contact area between the outer wall of the extension part 62 and the guide channel 52 is reduced, and therefore friction force is reduced, resistance is smaller, and friction noise is also small.

Alternatively, as shown in fig. 2, the difference between the inner diameter of the guide channel 52 and the outer diameter of the extension 62 is less than or equal to 30 μm, so that the stability during writing is ensured, the shaking is not ensured during writing, and the extension 62 can freely move in the guide channel 52, preferably, the inner diameter of the guide channel 52 is 23.5 μm larger than the outer diameter of the extension 62, the writing stability is best, and the writing part 61 can smoothly enter and exit the pen tip housing 5.

Optionally, as shown in fig. 2, the pen core 6 and the guide channel 52 are coaxially arranged, and the central axis of the pen core 6 is consistent with the central axis of the guide channel 52, so that the pen core 6 is ensured to be always kept at a stable position in the process of entering and exiting the pen tip housing 5, and further, the pen water of the writing part 61 is ensured not to touch the inlet and outlet 51.

Optionally, as shown in fig. 2, 3 and 4, the pen tip housing 5 is further provided with a spring mounting channel 53 adapted for mounting a spring, a step 531 is provided at a front end of the spring mounting channel 53, the pen core 6 is provided with an abutment 63, and two ends of the spring are respectively abutted against the step 531 and the abutment 63.

The spring is a compression spring, the spring is in a compression state when the pen core 6 is in an extended writing state, when the automatic rebound assembly 4 drives the pen core 6 to switch states, the pen core 6 is pushed to switch to a retracted storage state under the action of spring force of the spring, and the spring mounting channel 53 can prevent the spring from deflecting or shaking in the stress process and ensure the stability of state switching of the pen core 6.

Alternatively, as shown in fig. 2 and 3, the spring mounting channel 53 is coaxially arranged with the guide channel 52, so that the movement of the pen core 6 can be better controlled, and the inner diameter of the spring mounting channel 53 is larger than the inner diameter of the guide channel 52, so that the spring is prevented from entering the guide channel 52, and the stable movement of the pen core 6 is ensured.

Optionally, referring to fig. 7, fig. 8, and fig. 9, the pen body casing includes a holding rod 2 and a leaning rod 3 that are detachably connected with each other, a suspension type holding sleeve 1 is sleeved outside the holding rod 2, the suspension type holding sleeve 1 includes a holding sleeve body 11 and a protruding portion protruding from an inner wall of the holding sleeve body 11, and the protruding portion abuts against the holding rod 2, so that the holding sleeve body 11 is in a suspension state during writing.

When a user holds the suspension type grip 1 and starts writing, the grip 2 is contacted with the bulge, and the grip body 11 is in a suspension state under the support of the bulge, so that the contact between the grip body 11 and the grip 2 is limited to the bulge, the continuous friction and pressure between the grip inner wall and the grip 2 are reduced, and therefore, the discomfort and pain caused by the close contact between the grip inner wall and the grip 2 can not be caused by the fingers of the user during long-time writing.

In this embodiment, set up the bellying that is used for supporting grip body 11 between grip body 11 and holding rod 2 for grip body 11 is in the suspension state, has reduced the continuous friction and the pressure between grip inner wall and the holding rod 2, especially when long-time use, can effectively alleviate the pressure and the friction of finger, makes the user can be relaxed more freely in writing the in-process, no longer easily feel tired and the discomfort of finger, and the finger is not played the cocoon of writing, has provided more comfortable writing experience.

Alternatively, as shown in fig. 7 and 8, the material of the grip sleeve body 11 and the protruding portion is silica gel, and the grip sleeve body 11 and the protruding portion are integrally injection molded. The silica gel is a soft, durable and easy-to-process material, the softness of the silica gel can provide additional comfort during writing, meanwhile, the durability can ensure the service life of the suspended grip sleeve 1, in addition, the grip sleeve body 11 and the raised part can be made of other soft materials, and the grip sleeve body 11 and the raised part are manufactured by adopting an integral injection molding method, so that the consistency and quality of the grip sleeve can be ensured, the assembly steps are reduced, and the service life is prolonged.

Optionally, as shown in fig. 7 and 8, the gap between the grip body 11 and the grip rod 2 is communicated with the outside air, the grip body 11 contacts with the grip rod 2 through the protruding part, so that the gap between the grip body 11 and the grip rod 2 can be generated, thereby realizing the suspension effect of the grip, reducing the tight contact between the grip body 11 and the grip rod 2, the gap can be ventilated from the front end and the rear end of the grip body 11, and ventilation holes can be arranged on the wall of the grip body 11 to ensure that the air in the gap can be freely exchanged, prevent the accumulation of air pressure, maintain comfortable gripping feeling, and ensure the stability of gripping.

Optionally, as shown in fig. 7 and 8, the front end and the rear end of the grip body 11 are respectively provided with a front opening 111 and a rear opening 112, the front opening 111 and the rear opening 112 are used for communicating the gap with the outside air, the protruding parts comprise a first protruding part 12 and a second protruding part 13, the first protruding part 12 and the second protruding part 13 are respectively arranged on the front opening 111 and the rear opening 112, the front opening 111 and the rear opening 112 are designed to enable the gap inside the grip body 11 to be communicated with the outside air, so that the air inside the gap can be freely exchanged regardless of the front end or the rear end, and accordingly proper air pressure balance is kept, the condition that the air pressure is accumulated inside the grip is avoided, the first protruding part 12 and the second protruding part 13 are abutted with the grip body 2 and are used for supporting the grip body 11, other inner cavity surfaces of the grip body 11 are in a suspended state, when a user grips the grip body 1 and starts, the grip body 2 can be in contact with the first protruding part 12 and the second protruding part 13, the grip body is not in contact with the suspended state with the grip body, and the air pressure inside the grip body is not in contact with the suspended state, and the air pressure inside the grip body is not in contact with the gap is maintained, and the air pressure stability is not balanced, and the grip body is not in contact with the air inside the grip body is suspended, and the grip body is in the air is in contact with the gap is in the air, and the air is not in contact with the air, and the air is kept in the air, and the air is in the air-free contact with the gap, and the grip opening is in the air.

Optionally, as shown in fig. 7 and 8, the first protruding portion 12 includes a plurality of first arc protruding sections 121 disposed at intervals, a first gap 122 is formed between two adjacent first arc protruding sections 121 at intervals, the second protruding portion 13 includes a plurality of second arc protruding sections 131 disposed at intervals, a second gap 132 is formed between two adjacent second arc protruding sections 131 at intervals, the first gap 122 and the second gap 132 are disposed at intervals, the first arc protruding sections 121 and the second arc protruding sections 131 can be attached to the circular structures of the front opening 111 and the rear opening 112, and perform a good supporting function, the first gap 122 and the second gap 132 are used for communicating air in the gap, the first gap 122 and the second gap 132 are disposed at intervals, that is, their positions are not on the same line in the front-rear direction, and the gas on the same line in the front-rear direction can only be discharged from the front opening 111 or the rear opening 112 due to the staggered design, so that the gas on the same line can be discharged from the front opening 111 or the rear opening 112, thereby further ensuring a comfortable holding effect of holding and holding feeling of a holding sleeve. In addition, the first gap 122 and the second gap 132 may be disposed without being offset.

Optionally, as shown in fig. 7 and 8, the protruding portion includes a plurality of protruding points 14 disposed at intervals, the protruding points 14 are distributed on the inner wall of the grip sleeve body 11 at intervals, the protruding points 14 are in a hemispherical structure or other shapes, the protruding points 14 are distributed on the inner wall of the grip sleeve body 11, which is helpful for enhancing the support of the suspension part of the grip sleeve body 11, the protruding points 14 are disposed at intervals, which can ensure the ventilation of the air in the grip sleeve body 11, the air held outside the grip sleeve body 11 during writing is discharged, and the air outside the grip sleeve body 11 can enter the grip sleeve body 11 when the grip sleeve body 11 is released, so that the air inside the product can be distributed irregularly in the use state, and the comfort of hand feeling is increased.

Optionally, as shown in fig. 7 to 11, the pen body casing includes a holding rod 2 and a leaning rod 3 detachably connected with each other, the automatic rebound assembly 4 is movably connected with the leaning rod 3, the automatic rebound assembly 4 includes a pressing piece 41, a conversion piece 42 and a pen clip 43, the pressing piece 41 is movably connected with the conversion piece 42, a plurality of first gear teeth 411 disposed at intervals are disposed on an outer wall of the pressing piece 41, a first gear groove 31 slidably matched with the first gear teeth 411 is disposed on an inner wall of the leaning rod 3, a second gear tooth 421 is disposed on an outer wall of the conversion piece 42, a second gear groove 32 slidably matched with the second gear tooth 421 is disposed on an inner wall of the leaning rod 3, a limiting block 422 is disposed on an outer wall of the conversion piece 42, a stop 431 adapted to cooperate with the limiting block 422 is disposed on the pen clip 43, and a through hole 33 for the stop 431 to pass through is disposed on the leaning rod 3.

The pen comprises a pen holder, a pen core 6, a pen holder cover 1, a leaning rod 3, a pen core, a pen holder cover 2, a waist line part 34, a pen holder cover 1, a pen holder, a pen cover and a pen, wherein the leaning rod 3 is detachably connected with the pen holder 2 so as to be convenient for installing and replacing the pen core 6, the pen holder 2 is provided with a concave part for installing the suspending type pen holder cover 1 so as to enable the whole surface of the pen to be smooth and transitional, and ensure the comfort of writing, the waist line part 34 is arranged on the outer contour of the leaning rod 3, and the waist line part 34 is lapped on the tiger mouth of a user during writing, so that the pen holder is more comfortable and the whole attractive appearance can be increased.

The number of the first wheel grooves 31 is plural and are uniformly arranged at intervals, the first wheel grooves 31 have a certain length in the front-rear direction, the front end parts of the first wheel grooves 31 are provided with guide edges matched with the guide lugs of the pressing pieces 41, the number of the second wheel grooves 32 are at least two, the front end parts of the second wheel grooves 32 are also provided with guide edges used for switching positions, when the pressing pieces 41 are pressed, the first wheel teeth 411 slide out of the first wheel grooves 31, the switching pieces 42 move forwards under the thrust of the pressing pieces 41, the second wheel teeth 421 slide out of the second wheel grooves 32 synchronously, at the moment, the writing part 61 of the pen core 6 stretches out of the pen, and under the rotary guide action between the pressing pieces 41 and the switching pieces 42, the switching pieces 42 rotate, the second wheel teeth 421 enter the next second wheel groove 32, at the moment, the upper ends of the limiting blocks 422 are abutted with the lower ends of the limiting blocks 431, the pen core 6 are prevented from retracting, the pen core 6 is stably in an extended writing state, a user can write normally, at the moment, the spring outside the pen core 6 is in a compressed state, and when the limiting blocks 43 slightly rotate, the pen core 6 is retracted under the action of the elastic force of the switching pieces 431, and the pen core 6 returns under the action of the switching pieces 42.

In this embodiment, the automatic rebound component 4 is provided, so that as long as the pen clip 43 is slightly lifted relative to the leaning rod 3, the stop block 431 is separated from the limiting block 422, and the automatic retraction of the pen core 6 into the pen shell can be realized, so that the pen core 6 is convenient to retract, and even when a user forgets to operate the retraction pen core 6, the pen core 6 can rebound automatically through the action of clamping the pen clip 43 on articles such as books or clothes when the user forgets to operate the retraction pen core 6, the books, clothes and the like are not easy to be polluted by pen water, and unnecessary pollution is avoided.

Optionally, as shown in fig. 9, 10 and 11, one end of the pen clip 43 away from the stop block 431 is hinged to the outer wall of the leaning rod 3, and the pen clip 43 is hinged to the leaning rod 3, so that the stop block 431 can be separated from the stop block 422 when the pen clip 43 is lifted relative to the leaning rod 3 in a rotating manner, and the pen clip is simple and quick to operate and simple in structure. The limiting block 422 is located right in front of the second gear teeth 421, the number of the limiting block 422 and the number of the second gear teeth 421 are two, the limiting block 422 and the second gear teeth 421 are arranged in one-to-one correspondence, the number of the second gear teeth 421 and the number of the second wheel grooves 32 are two, the two second gear teeth 421 are symmetrically arranged, the two second wheel grooves 32 are symmetrically arranged, the state of the refill 6 is changed, and the limiting block 422 is located right in front of the second gear teeth 421, so that the limiting block 422 is ensured to have correct guiding and limiting effects in the automatic rebound process.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.

Claims (7)

1. A pressing pen is characterized by comprising a pen shell, a pen core (6) and an automatic rebound component (4) for driving the pen core (6) to extend or automatically retract into the pen shell, wherein the pen shell comprises a pen tip shell (5) and a pen body shell which are connected with each other, the automatic rebound component (4) is movably connected with the pen body shell, the pen core (6) comprises a writing part (61) and an extension part (62) which are connected with each other and are coaxially arranged, the pen tip shell (5) is provided with an inlet and outlet (51) for allowing the writing part (61) to enter and exit and a guide channel (52) for allowing the extension part (62) to slide back and forth, the outer wall of the extension part (62) is contacted with or is close to the inner wall of the guide channel (52), the pen core (6) is provided with an extending writing state and a retracting storage state, when in the extending writing state, the writing part (61) extends out of the inlet and outlet (51), when in the retracting storage state, the writing part (61) is retracted into the retraction state, the writing part (51) is retracted into the writing state, the extending state is switched between the extending state and the extending state or the retracting state, the extension part (62) is not separated from the guide channel (52) all the time in the front-back direction so as to prevent the writing part (61) from contacting the inlet and outlet (51), and the guide channel (52) is a cylindrical hole, a trumpet-shaped hole, a square hole or an oval hole;

The pen body shell comprises a holding rod (2) and a leaning rod (3) which are detachably connected with each other, a suspension type holding sleeve (1) is sleeved outside the holding rod (2), the suspension type holding sleeve (1) comprises a holding sleeve body (11) and a protruding part protruding from the inner wall of the holding sleeve body (11), the protruding part is abutted with the holding rod (2), and the holding sleeve body (11) is in a suspension state when writing is realized;

the holding sleeve body (11) and the protruding part are made of silica gel, and the holding sleeve body (11) and the protruding part are integrally injection molded;

front opening (111) and back opening (112) are respectively arranged at the front end and the back end of holding sleeve body (11), front opening (111) and back opening (112) are used for being communicated with outside air through a gap, each protruding portion comprises a first protruding portion (12) and a second protruding portion (13), the first protruding portion (12) and the second protruding portion (13) are respectively arranged at the front opening (111) and the back opening (112), each first protruding portion (12) comprises a plurality of first arc protruding sections (121) which are arranged at intervals, a first gap (122) is formed between every two adjacent first arc protruding sections (121), each second protruding portion (13) comprises a second arc protruding section (131) which is arranged at intervals, a second gap (132) is formed between every two adjacent second arc protruding sections (131), each first gap (122) and each second gap (132) are arranged in a staggered mode, each protruding portion comprises a plurality of protruding points (14) which are arranged at intervals, and the whole holding sleeve body (11) is fully distributed with protruding points at intervals.

2. The pressing pen according to claim 1, wherein the pen body shell comprises a holding rod (2) and a leaning rod (3) which are detachably connected with each other, the automatic rebound assembly (4) is movably connected with the leaning rod (3), the automatic rebound assembly (4) comprises a pressing piece (41), a conversion piece (42) and a pen clamp (43), the pressing piece (41) is movably connected with the conversion piece (42), a plurality of first gear teeth (411) which are arranged at intervals are arranged on the outer wall of the pressing piece (41), a first gear groove (31) which is in sliding fit with the first gear teeth (411) is arranged on the inner wall of the leaning rod (3), a second gear tooth (421) is arranged on the outer wall of the conversion piece (42), a second gear groove (32) which is in sliding fit with the second gear tooth (421) is arranged on the inner wall of the leaning rod (3), a limit block (422) is arranged on the outer wall of the conversion piece (42), a limit block (431) which is suitable for being matched with the limit block (422), and a through hole (33) is arranged on the leaning rod.

3. The pressing pen according to claim 2, wherein one end of the pen clip (43) away from the stop block (431) is hinged to the outer wall of the leaning rod (3), the limiting block (422) is located right in front of the second gear teeth (421), the number of the limiting block (422) and the second gear teeth (421) is two, and the limiting block (422) and the second gear teeth (421) are arranged in a one-to-one correspondence.

4. The pressing pen according to claim 1, wherein the inlet and outlet (51) is a front end opening of the guide passage (52), the guide passage (52) is coaxially arranged with the inlet and outlet (51), an inner diameter of the inlet and outlet (51) is not smaller than an inner diameter of the guide passage (52), and the cartridge (6) is coaxially arranged with the guide passage (52).

5. The pressing pen of claim 1, wherein the guide channel (52) includes a plurality of spaced apart elongate ribs (521).

6. The pressing pen according to claim 1, wherein a difference between an inner diameter of the guide passage (52) and an outer diameter of the extension (62) is 30 μm or less.

7. The pressing pen according to claim 1, wherein the pen tip housing (5) is further provided with a spring mounting channel (53) adapted for mounting a spring, a step (531) is provided at a front end of the spring mounting channel (53), the pen core (6) is provided with an abutment table (63), both ends of the spring are respectively abutted with the step (531) and the abutment table (63), the spring mounting channel (53) is coaxially provided with the guide channel (52), and an inner diameter of the spring mounting channel (53) is larger than an inner diameter of the guide channel (52).