Press-type writing stationery

Abstract

The invention discloses a push-type writing stationery, comprising: a pen holder, a pen core, a spring and a sealing assembly, wherein the sealing assembly comprises a first guard plate, a second guard plate, a shielding plate and a connecting piece, wherein the first guard plate and the second guard plate are arranged relative to each other and form a mounting channel, the shielding plate is arranged at the end positions of the first guard plate and the second guard plate, a first flexible connection portion is formed between the shielding plate and the first guard plate, the connecting piece is located between the first guard plate and the second guard plate, a second flexible connection portion is formed between one end of the connecting piece and the second guard plate, and a third flexible connection portion is formed between the other end of the connecting piece and the shielding plate; the sealing assembly is arranged in the pen holder, the pen core is arranged in the mounting channel, and the shielding plate is arranged at the entrance and exit hole; the pen core is configured to drive the first guard plate and the second guard plate to move relative to each other during the process of extending the pen holder so that the shielding plate is flipped open outside the pen holder, so as to reduce the radial size of the writing pen and optimize the hand-holding feeling to improve the user experience.

Description

Technical Field

[0001] The invention relates to a stationery, in particular to a press-type writing stationery. Background Art

[0002] At present, writing pens (signature pens, oil pens, gel pens, etc.) are indispensable stationery in people's daily life and work. Writing pens are divided into push-type writing stationery and cap-type writing pens according to different usage methods. Push-type writing stationery is widely used because it is easy to operate. For push-type writing stationery using ink, the anti-drying protection of the pen tip is particularly important. For example, Chinese patent publications CN108621640A, CN114103527A, and CN111186230A respectively record technical solutions for the anti-drying protection of the pen tip. The above technical solution can basically achieve the effect of covering the pen tip with the sealing part after the pen tip is retracted into the pen holder to prevent drying. However, due to the installation restrictions of the sealing part, the pen holder built into the sealing part is switched inside. For this reason, the radial size of the pen holder is large to meet the operating position requirements of the sealing part switch, resulting in the overall coarseness of the writing pen and poor hand grip. In view of this, how to design a stationery that reduces the radial size of the writing pen and optimizes the grip to improve the user experience is a technical problem to be solved by the present invention. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a press-type writing stationery, which can reduce the radial size of the writing pen and optimize the grip to improve the user experience.

[0004] The technical solution provided by the present invention is a press-type writing stationery, comprising:

[0005] A pen holder, wherein the head of the pen holder is provided with an access hole, and the tail of the pen holder is provided with a pressing component;

[0006] A pen core, wherein the head of the pen core is provided with a pen tip, the pen core is slidably arranged in the pen holder, the pen tip is close to the access hole, and the pressing component is configured to drive the pen core to slide in the pen holder;

[0007] A spring, the spring being arranged in the pen holder and exerting an elastic force on the pen core in a direction away from the access hole;

[0008] A sealing assembly, the sealing assembly comprising a first guard plate, a second guard plate, a shielding plate and a connecting piece, the cross-sections of the first guard plate and the second guard plate are arc-shaped structures, the first guard plate and the second guard plate are arranged opposite to each other and form a mounting channel, the shielding plate is arranged at the end positions of the first guard plate and the second guard plate, a first flexible connection portion is formed between the shielding plate and the first guard plate, the connecting piece is located between the first guard plate and the second guard plate, a second flexible connection portion is formed between one end of the connecting piece and the second guard plate, and a third flexible connection portion is formed between the other end of the connecting piece and the shielding plate;

[0009] Wherein, the sealing assembly is arranged in the pen shaft, the pen core is arranged in the installation channel, and the baffle is arranged at the entrance and exit hole; the pen core is configured to drive the first guard plate and the second guard plate to move relative to each other during the process of extending out of the pen shaft so that the baffle is flipped open outside the pen shaft.

[0010] A sealing assembly is arranged on the pen barrel, and the sealing assembly adopts two relatively arranged first and second guard plates to form an installation channel for the installation of the pen core, and utilizes a shielding plate to meet the function of closing the access hole of the pen barrel to prevent the pen tip from drying out. When the user uses the push-type writing stationery to write, the pen tip of the pen core extends out of the pen barrel and drives the sealing assembly to move, so that relative sliding occurs between the first and second guard plates, and then the shielding plate extends from the pen barrel and flips open outside the pen barrel to expose the pen tip. Since the shielding plate completes the flipping and opening operation outside the pen barrel, the shielding plate will not occupy the internal space of the pen barrel, and thus the radial size of the pen barrel can be effectively reduced, meeting the design requirements of a smaller pen barrel, and optimizing the grip to improve the user experience.

[0011] Furthermore, in the process that the pen core slides in the pen barrel so that the pen tip extends from the entry and exit hole to the outside of the pen barrel, the first guard plate and the second guard plate are positioned on the pen barrel in sequence along the moving direction of the pen core; and, in the process that the first guard plate is positioned by the pen barrel and the second guard plate continues to move with the pen core, the shielding plate flips over outside the pen barrel to open the installation channel.

[0012] Furthermore, the inner wall of the pen barrel is provided with a protruding positioning rib, the outer wall of the first guard plate is provided with a first positioning protrusion, and the outer wall of the second guard plate is provided with a second positioning protrusion; when the pen tip is retracted into the pen barrel, the distance between the first positioning protrusion and the positioning rib is smaller than the distance between the second positioning protrusion and the positioning rib.

[0013] Furthermore, the first guard plate is provided with a first elastic portion, and the second guard plate is provided with a second elastic portion;

[0014] A first driving part and a second driving part are provided on the outer wall of the pen core, the first driving part is configured to abut against the free end of the first elastic part to apply a thrust to the first guard plate when the pen core slides out and drives the first guard plate to move together, and the second driving part is configured to abut against the free end of the second elastic part to apply a thrust to the second guard plate when the pen core slides out and drives the second guard plate to move together.

[0015] Further, the first driving part and the second driving part are groove structures formed on the outer wall of the pen core; or, the first driving part and the second driving part are protrusion structures formed on the outer wall of the pen core.

[0016] Furthermore, the free end of the first elastic part is provided with a first protrusion protruding toward the inner wall of the pen barrel, and the free end of the second elastic part is provided with a second protrusion protruding toward the inner wall of the pen barrel;

[0017] The inner wall of the pen barrel is provided with a first avoidance groove and a second avoidance groove, the first avoidance groove is configured so that after the first positioning protrusion is clamped on the positioning rib, the first protrusion is located in the first avoidance groove so that the first elastic part leaves the first driving part, and the second avoidance groove is configured so that after the second positioning protrusion is clamped on the positioning rib, the second protrusion is located in the second avoidance groove so that the second elastic part leaves the second driving part.

[0018] Furthermore, a first hollow hole is provided on the first guard plate, and the first elastic part is provided in the first hollow hole; a second hollow hole is provided on the second guard plate, and the second elastic part is provided in the second hollow hole.

[0019] Furthermore, a first pulling portion extending toward the second guard plate is provided at the end of the first guard plate away from the entry and exit hole, and a second pulling portion extending toward the first guard plate is provided at the end of the second guard plate away from the entry and exit hole, and the first pulling portion and the second pulling portion are arranged opposite to each other; a protrusion is provided on the outer wall of the pen core, and the protrusion is configured so that during the sliding and retraction process of the pen core, the protrusion pulls the second pulling portion and the first pulling portion in sequence.

[0020] Furthermore, a guide slot is formed between the relative edges of the first guard plate and the second guard plate, the protrusion is slidably arranged in the guide slot, and the first pulling part and the second pulling part are located at the end of the guide slot away from the entrance and exit hole.

[0021] Furthermore, it also includes a sealing ring, which is sleeved on the pen core, and the outer edge of the sealing ring is against the inner wall of the pen shaft; when the pen core is retracted into the pen shaft, the shielding plate blocks the entrance and exit holes, and the shielding plate and the sealing ring form a sealed space between the pen shaft and the pen core, and the pen tip is located in the sealed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a structural schematic diagram of a first embodiment of the push-type writing stationery of the present invention in a closed state;

[0024] Figure 2 This is a structural schematic diagram of a first embodiment of the push-type writing stationery of the present invention in an open state;

[0025] Figure 3 for Figure 1 Assembly diagram of the middle refill and sealing assembly;

[0026] Figure 4 for Figure 2 Assembly diagram of the middle refill and sealing assembly;

[0027] Figure 5 A partial cross-sectional view of a first embodiment of the push-type writing stationery of the present invention in a closed state;

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle A area;

[0029] Figure 7 A partial cross-sectional view of the first embodiment of the push-type writing stationery of the present invention in an open state;

[0030] Figure 8 for Figure 7 A partial enlarged schematic diagram of the middle B area;

[0031] Fig. 9 for Figure 7 A partial enlarged schematic diagram of the middle C area;

[0032] Fig.10 for Figure 1 A schematic diagram of the structure of the middle refill;

[0033] Fig.11 for Figure 1 A partial cross-sectional view of the middle pen holder;

[0034] Fig.12 A partial cross-sectional view of the second embodiment of the push-type writing stationery of the present invention in a closed state;

[0035] Fig.13 for Fig.12 A partial enlarged schematic diagram of the middle M region;

[0036] Fig.14 A partial cross-sectional view of the second embodiment of the push-type writing stationery of the present invention in an open state;

[0037] Fig.15 This is an exploded view of the assembly of the push component and the pen core in the second embodiment of the push-type writing stationery of the present invention.

[0038] Reference numerals:

[0039] Pen 1;

[0040] Access hole 11, positioning rib 13, first avoidance groove 14, second avoidance groove 15, guide rib 12, and limiter 10;

[0041] Refill 2;

[0042] The pen tip 21, the first driving part 22, the second driving part 23, and the bump 24;

[0043] Spring 3;

[0044] Sealing assembly 4;

[0045] A first guard plate 41, a second guard plate 42, a shielding plate 43, and a connecting member 44;

[0046] A first positioning protrusion 411, a first elastic portion 412, a first protrusion 413, a first hollow hole 414, a first pulling portion 415, a second positioning protrusion 421, a second elastic portion 422, a second protrusion 423, a second hollow hole 424, and a second pulling portion 425;

[0047] A first flexible connection portion 401, a second flexible connection portion 402, and a third flexible connection portion 403;

[0048] Sealing ring 5;

[0049] Press component 6;

[0050] Pressing component 61, extension rod 62, moving gear 63;

[0051] Guide teeth 611 and pressure plate 621 . DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Embodiment 1, as Figure 1-Figure 7 As shown, an embodiment of the present invention provides a push-type writing stationery, including: a pen body 1, a pen core 2, a spring 3 and a sealing assembly 4.

[0054] The head of the pen body 1 is provided with an access hole 11 , and the tail of the pen body 1 is provided with a pressing component (the pressing component may be a conventional structure such as a pen cap).

[0055] The head of the pen core 2 is provided with a pen tip 21 , and the pen core 2 is slidably arranged in the pen barrel 1 , with the pen tip 21 close to the access hole 11 ; and the pressing component is configured to be pressed and slid by the user to drive the pen core 2 to slide in the pen barrel 1 .

[0056] The spring 3 is arranged in the pen body 1 and applies an elastic force to the pen core 2 in a direction away from the access hole 11 .

[0057] The sealing assembly 4 includes a first guard plate 41, a second guard plate 42, a shielding plate 43 and a connecting member 44. The cross-sections of the first guard plate 41 and the second guard plate 42 are arc-shaped structures. The first guard plate 41 and the second guard plate 42 are arranged opposite to each other and form a mounting channel. The shielding plate 43 is arranged at the end positions of the first guard plate 41 and the second guard plate 42. A first flexible connecting portion 401 is formed between the shielding plate 43 and the first guard plate 41. The connecting member 44 is located between the first guard plate 41 and the second guard plate 42. A second flexible connecting portion 402 is formed between one end of the connecting member 44 and the second guard plate 42. A third flexible connecting portion 403 is formed between the other end of the connecting member 44 and the shielding plate 43.

[0058] Among them, the sealing assembly 4 is arranged in the pen barrel 1, the pen core 2 is arranged in the installation channel, and the baffle plate 43 is arranged at the entrance and exit hole 11; the pen core 2 is configured to drive the first guard plate 41 and the second guard plate 42 to move relative to each other during the process of extending out of the pen barrel 1 so that the baffle plate 43 is flipped open outside the pen barrel 1.

[0059] Specifically, during the assembly process, the first guard plate 41 and the second guard plate 42 in the sealing assembly 4 are arranged on the outside of the pen core 2, the sealing assembly 4 and the pen core 2 are installed in the pen barrel 1, and the shielding plate 43 is arranged at the access hole 11, and the pressing component is against the pen core 2, and the spring 3 is located in the pen barrel 1 and squeezed between the pen core 2 and the pen barrel 1 to provide a reset elastic force.

[0060] During use, when the user needs to use the press-type writing stationery for writing, by pressing the pressing component, the pen core 2 slides in the pen barrel 1 toward the outside of the pen barrel 1, and the pen core 2 will drive the sealing component 4 to move together in the pen barrel 1 during the sliding process so that the shielding plate 43 moves to the outside of the access hole 11, and at the same time, the pen core 2 will drive the first guard plate 41 and the second guard plate 42 to move relative to each other. The shielding plate 43 is set between the two guard plates in a flexible connection manner. When the first guard plate 41 and the second guard plate 42 move relative to each other, on the one hand, the shielding plate 43 can rotate relative to the first guard plate 41 through the first flexible connection part 401, and on the other hand, the second guard plate 42 provides the shielding plate 43 with the power to flip toward the first guard plate 41 through the flexible connection parts formed at both ends of the connecting member 44, and finally, the shielding plate 43 flips open outside the pen barrel 1 to expose the pen tip 21. In this way, the user can write.

[0061] After use, the user presses the pressing component again, and under the action of the spring 3, the pen core 2 and the sealing assembly 4 move in the opposite direction, the pen tip 21 finally retracts into the pen barrel 1, and the shielding plate 43 is restored to block the access hole 11.

[0062] In which, when the refill 2 slides in the pen barrel 1 so that the pen tip 21 extends from the access hole 11 to the outside of the pen barrel 1, the first guard plate 41 and the second guard plate 42 are positioned on the pen barrel 1 in sequence along the moving direction of the refill 2; and, when the first guard plate 41 is positioned by the pen barrel 1 and the second guard plate 42 continues to move with the refill 2, the shielding plate 43 flips over on the outside of the pen barrel 1 to open the installation channel.

[0063] Specifically, during the process of the pen core 2 sliding out, the first guard plate 41 and the second guard plate 42 move together with the pen core 2 in the initial stage, so that the baffle plate 43 extends out from the access hole 11. As the pen core 2 continues to move, the first guard plate 41 is fixed by the pen shaft 1, and the second guard plate 42 continues to move with the pen core, thereby realizing the movement of the second guard plate 42 relative to the first guard plate 41, so as to drive the baffle plate 43 to flip open through the connecting member 44.

[0064] A sealing assembly is arranged on the pen barrel, and the sealing assembly adopts two relatively arranged first and second guard plates to form an installation channel for the installation of the pen core, and utilizes a shielding plate to meet the function of closing the access hole of the pen barrel to prevent the pen tip from drying out. When the user uses the push-type writing stationery to write, the pen tip of the pen core extends out of the pen barrel and drives the sealing assembly to move, so that relative sliding occurs between the first and second guard plates, and then the shielding plate extends from the pen barrel and flips open outside the pen barrel to expose the pen tip. Since the shielding plate completes the flipping and opening operation outside the pen barrel, the shielding plate will not occupy the internal space of the pen barrel, and thus the radial size of the pen barrel can be effectively reduced, meeting the design requirements of a smaller pen barrel, and optimizing the grip to improve the user experience.

[0065] In some embodiments, the inner wall of the pen shaft 1 is provided with a protruding positioning rib 13, the outer wall of the first guard plate 41 is provided with a first positioning protrusion 411, and the outer wall of the second guard plate 42 is provided with a second positioning protrusion 421; when the pen tip 21 is retracted into the pen shaft 1, the distance between the first positioning protrusion 411 and the positioning rib 13 is smaller than the distance between the second positioning protrusion 421 and the positioning rib 13.

[0066] Specifically, in order to position the first guard plate 41 and the second guard plate 42 in sequence when the pen core 2 drives the sealing component 4 to move together, a first positioning protrusion 411 and a second positioning protrusion 421 are respectively provided on the first guard plate 41 and the second guard plate 42. In order to position the first guard plate 41 and the second guard plate 42 in sequence during the movement of the pen core 2, the distances between the first positioning protrusion 411 and the second positioning protrusion 421 and the positioning rib 13 are designed to be different. In this way, when the sealing component 4 moves with the pen core 2, the first positioning protrusion 411 first touches the positioning rib 13 to position the first guard plate 41 not to move with the pen core 2, and then, the second positioning protrusion 421 further moves a certain distance and touches the positioning rib 13 to position the second guard plate 42 not to move with the pen core 2.

[0067] In another embodiment, a first elastic portion 412 is provided on the first guard plate 41, and a second elastic portion 422 is provided on the second guard plate 42; a first driving portion 22 and a second driving portion 23 are provided on the outer wall of the pen core 2, and the first driving portion 22 is configured to abut against the free end of the first elastic portion 412 to apply a thrust to the first guard plate 41 when the pen core 2 slides out and drives the first guard plate 41 to move together, and the second driving portion 23 is configured to abut against the free end of the second elastic portion 422 to apply a thrust to the second guard plate 42 when the pen core 2 slides out and drives the second guard plate 42 to move together.

[0068] Specifically, in the process of the refill 2 extending out of the pen holder 1, the refill 2 will drive the first guard plate 41 and the second guard plate 42 to move synchronously in the initial stage, and after the first guard plate 41 and the second guard plate 42 are limited by the positioning rib 13, the refill 2 will slide alone. In order to enable the refill 2 to reliably drive the two guard plates to move, the first driving part 22 and the second driving part 23 are respectively arranged on both sides of the refill 2. The following is an example of the refill 2 driving the intermittent movement of the first guard plate 41 through the cooperation of the first driving part 22 and the first elastic part 412. When the user presses the pressing component to drive the refill 2 to extend outward, the first driving part 22 will abut against the first elastic part 412 to drive the first guard plate 41 to move, and when the first positioning protrusion 411 on the first guard plate 41 abuts against the positioning rib 13, the first elastic part 412 will deform and then break away from the first driving part 22, so that the refill 2 can continue to move. Likewise, the driving method of the second driving portion 23 and the second elastic portion 422 is the same as described above, and will not be elaborated herein.

[0069] The first driving part 22 and the second driving part 23 are groove structures formed on the outer wall of the pen core 2. When in use, taking the cooperation between the first driving part 22 and the first elastic part 412 as an example, when the pen core 2 drives the first guard plate 41 to move, the free end of the first elastic part 412 is inserted into the groove structure, and after the first guard plate 41 is positioned by the cooperation of the first positioning protrusion 411 and the positioning rib 13, the free end of the first elastic part 412 is squeezed behind the groove structure to deform and detach from the groove structure.

[0070] Alternatively, the first driving part 22 and the second driving part 23 are protruding structures formed on the outer wall of the pen core 2. When in use, taking the cooperation between the first driving part 22 and the first elastic part 412 as an example, when the pen core 2 drives the first guard plate 41 to move, the free end of the first elastic part 412 is inserted into the outer side of the protruding structure, and after the first guard plate 41 is positioned by the cooperation of the first positioning protrusion 411 and the positioning rib 13, the free end of the first elastic part 412 is squeezed by the protruding structure to deform and detach from the protruding structure.

[0071] In addition, in order to improve the smoothness of pressing, the free end of the first elastic part 412 is provided with a first protrusion 413 protruding toward the inner wall of the pen shaft 1, and the free end of the second elastic part 422 is provided with a second protrusion 423 protruding toward the inner wall of the pen shaft 1; the inner wall of the pen shaft 1 is provided with a first avoidance groove 14 and a second avoidance groove 15, and the first avoidance groove 14 is configured such that after the first positioning protrusion 411 is stuck on the positioning rib 13, the first protrusion 413 is located in the first avoidance groove 14 so that the first elastic part 412 leaves the first driving part 22, and the second avoidance groove 15 is configured such that after the second positioning protrusion 421 is stuck on the positioning rib 13, the second protrusion 423 is located in the second avoidance groove 15 so that the second elastic part 422 leaves the second driving part 23.

[0072] Specifically, in order to improve the user's pressing smoothness when pressing the pressing component, an escape groove is formed on the inner wall of the pen body 1 to accommodate the elastic part after the guard plate is positioned, so as to ensure that the pen core 2 can slide smoothly after the guard plate is positioned. Taking the first guard plate 41 as an example, when the pen core 2 is retracted, the first protrusion 413 abuts against the inner wall of the pen body 1 and causes the first elastic part 412 to undergo elastic deformation toward the pen core 2, so that the free end of the first elastic part 412 is stuck on the first driving part 22; as the pen core 2 slides outward, after the first positioning protrusion 411 is stuck on the positioning rib 13, the first protrusion 413 slides into the first escape groove 14, and the first elastic part 412 will use its own elasticity to reset and be located in the first escape groove 14, thereby causing the first elastic part 412 to automatically separate from the first driving part 22. In this way, after the first guard plate 41 is positioned, the user can continue to press the pen core 2 smoothly to move.

[0073] In one embodiment, a first hollow hole 414 is provided on the first guard plate 41 , a first elastic portion 412 is provided in the first hollow hole 414 , and a second hollow hole 424 is provided on the second guard plate 42 , a second elastic portion 422 is provided in the second hollow hole 424 .

[0074] Specifically, in order to achieve a compact structural design, the first guard plate 41 is formed with a first hollow hole 414 to accommodate the first elastic part 412. Similarly, the second guard plate 42 is formed with a second hollow hole 424 to accommodate the second elastic part 422, so that the overall length of the sealing assembly 4 is reduced to meet the requirements of a compact structural design.

[0075] In another embodiment, in order to pull the first guard plate 41 and the second guard plate 42 to reset through the pen core 2 when the pen core 2 is retracted into the pen body 1, a first pulling portion 415 extending toward the second guard plate 42 is provided at the end of the first guard plate 41 away from the entrance and exit hole 11, and a second pulling portion 425 extending toward the first guard plate 41 is provided at the end of the second guard plate 42 away from the entrance and exit hole 11, and the first pulling portion 415 and the second pulling portion 425 are arranged opposite to each other; a protrusion 24 is provided on the outer wall of the pen core 2, and the protrusion 24 is configured to pull the second pulling portion 425 and the first pulling portion 415 in sequence when the pen core 2 slides and retracts.

[0076] Specifically, for the push-type writing stationery in the writing state, when the user presses the pressing component again and releases it, the pen core 2 will move in the opposite direction and reset under the action of the spring 3. During the reverse movement of the pen core 2, the protrusion 24 will abut against the first pulling part 415 and the second pulling part 425 in turn, and finally drive the first guard plate 41 and the second guard plate 42 to reset. In this process, when the protrusion 24 first abuts against the first pulling part 415 to pull the first guard plate 41 to move, the shielding plate 43 reversely flips and shields the installation channel formed by the first guard plate 41 and the second guard plate 42; then, the protrusion 24 abuts against the second pulling part 425, and as the pen core 2 continues to move, the protrusion 24 drives the first guard plate 41 and the second guard plate 42 to move synchronously, so that the shielding plate 43 retracts and covers the access hole 11, and finally, the pen core 2 and the sealing assembly 4 are reset.

[0077] In one embodiment, a guide groove (not marked) is formed between the relative edges of the first guard plate 41 and the second guard plate 42, the protrusion 24 is slidably disposed in the guide groove, and the first pulling portion 415 and the second pulling portion 425 are located at the end of the guide groove away from the entrance and exit hole 11.

[0078] In another embodiment, in order to improve the sealing performance, the push-type writing stationery also includes a sealing ring 5, which is sleeved on the pen core 2, and the outer edge of the sealing ring 5 is against the inner wall of the pen shaft 1; when the pen core 2 is retracted into the pen shaft 1, the shielding plate 43 blocks the inlet and outlet holes 11, and the shielding plate 43 and the sealing ring 5 form a sealed space between the pen shaft 1 and the pen core 2, and the pen tip 21 is located in the sealed space.

[0079] Specifically, when the pen core 2 is in the retracted state, the access hole 11 is covered by the shielding plate 43, and the sealing ring 5 on the pen core 2 contacts the inner wall of the pen body 1, so that the pen tip 21 is arranged in the area inside the pen body 1 between the shielding plate 43 and the sealing ring 5 to form a relatively sealed space, which more effectively prevents the pen tip 21 from drying out.

[0080] Embodiment 2, based on the above embodiment 1, the push-type writing stationery in this embodiment is used to realize the push-type operation, such as Figure 12-Figure 15 As shown, a pressing assembly 6 is usually provided in the pen body 1 .

[0081] Among them, the head of the pen barrel 1 is provided with an entry and exit hole 11, the inner wall of the tail of the pen barrel 1 is provided with a plurality of guide ribs 12, and a limit piece 10 is also provided on the inner wall of the pen barrel 1, and the guide ribs 12 extend along the length direction of the pen barrel 1 and are arranged on the outside of the limit piece 10; the head of the pen core 2 is provided with a pen tip 21, and the pen core 2 is slidably arranged in the pen barrel 1, and the pen tip 21 is close to the entry and exit hole 11; the spring 3 is arranged in the pen barrel 1 and applies an elastic force to the pen core 2 in a direction away from the entry and exit hole 11; the pressing assembly 6 includes a pressing component 61, an extension rod 62 and a moving gear 63, the end of the pressing component 61 is provided with a guide tooth 611, the pressing component 61 is slidably arranged at the tail of the pen barrel 1, and the fixed gear is located between two adjacent guide ribs 12, the extension rod 62 is arranged on the pressing component 61 and abuts against the pen core 2, and the moving gear 63 is sleeved on the outside of the extension rod 62 and is located between the limit piece 10 and the guide tooth 611.

[0082] Specifically, during the use of the pen, the refill 2 is initially retracted into the pen barrel 1. After the user presses the pressing component 61, the pressing component 61 is forced to move toward the inside of the pen barrel 1, and during the movement of the pressing component 61, the extension rod 62 is driven to move synchronously, and then the extension rod 62 is used to directly transmit the force to the refill 2.

[0083] Under the action of the extension rod 62 , the pen core 2 will overcome the elastic force of the spring and move in the pen holder 1 , and finally, the pen tip 21 will extend to the outside of the pen holder 1 through the access hole 11 .

[0084] While the pressing component 61 drives the pen core 2 to move through the extension rod 62, the guide teeth 611611 slide along the guide ribs 12 provided on the inner wall of the pen holder 1 and abut against the movable gear 63, so that the movable gear 63 also slides along the guide ribs 12. During the sliding process, the teeth of the movable gear 63 will be separated from between the two guide ribs 12; at this time, since the pen core 2 is always abutted by the extension rod 62, the elastic force generated by the spring cannot be transmitted to the movable gear 63 through the pen core 2, thereby preventing the movable gear 63 from bouncing in the opposite direction. After the movable gear 63 is separated from between the two guide ribs 12, the guide teeth 611 will continue to press the tooth structure on the movable gear 63, so that the movable gear 63 rotates.

[0085] Among them, for different states of the push-type writing stationery during use, the position connection relationship between the movable gear 63 and the related components will change, as described in detail as follows.

[0086] When the pen core 2 is in the retracted state, a gap is formed between the movable gear 63 and the end of the pen core 2 or the guide tooth 611 .

[0087] Specifically, when the refill 2 is in the retracted state, the movable gear 63 can freely move a small distance between the refill and the guide teeth 611. For example, when the head of the pen holder 1 is facing downward, the movable gear 63 is pressed against the refill 2 and a gap is formed between the movable gear 63 and the guide teeth 611; and when the tail of the pen holder 1 is facing downward, the movable gear 63 is pressed against the guide teeth 611 and a gap is formed between the refill 2. In this way, when the user presses, the refill 2 is directly subjected to the pressure of the extension rod 62, and the movable gear 63 will not transmit force to drive the refill 2 to extend and move.

[0088] When the pressing component 61 is at the maximum pressing stroke position, the movable gear 63 abuts against the limiting member 10 .

[0089] Specifically, after the user presses the pressing component 61 to the bottom, the movable gear 63 abuts against the limiting member 10 for limiting, so as to prevent the movable gear 63 from applying pressure to the pen core 2 through the limiting member 10 and limit the moving stroke of the movable gear 63 .

[0090] In addition, when the pen tip 21 is extended and in the writing state, the pen core 2 abuts against the movable gear 63 , and the movable gear 63 is sandwiched between the pen core 2 and the guide rib 12 .

[0091] Specifically, in the writing state, since the pressing component is no longer subjected to force, under the action of the spring, the pen core 2 will apply pressure to the movable gear 63 to clamp it on the guide rib 12 for positioning.

[0092] In some embodiments, the limiting member 10 is a limiting rib integrally formed on the inner wall of the pen barrel 1 . Specifically, during the processing of the pen barrel 1 , a limiting rib may be integrally formed on the inner wall thereof to serve as the limiting member 10 .

[0093] Alternatively, in another embodiment, the limiting member 10 is a limiting sleeve, and the limiting sleeve is inserted into the pen body 1 .

[0094] Alternatively, in another embodiment, the pen body includes an upper rod body (not marked) and a lower rod body (not marked), the upper rod body and the lower rod body are detachably connected together, and the end surface of the lower rod body extending into the upper rod body forms the limit member.

[0095] In some other embodiments, a pressure plate 621 is disposed at the free end of the extension rod 62 , and the pressure plate 621 abuts against the pen core 2 .

[0096] Specifically, in order to facilitate assembly, a pressure plate 621 is provided on the extension rod 62. During assembly, the moving gear 63 is sleeved on the extension rod 62 and supported by the pressure plate 621. Then, the extension rod 62 is inserted into the pressing component for fixation. The pressing component 61, the extension rod 62, and the moving gear 63 are assembled together as a whole and installed in the pen body 1.

[0097] By configuring an extension rod on the pressing part of the pressing assembly and using the extension rod to press against the refill of the pen barrel, the extension rod replaces the moving gear to directly apply force to the refill to drive the refill to slide in the pen barrel. In this way, during use, when the user presses the pressing part, the extension rod will always press against the refill to apply pressure to the refill, and the elastic force generated by the spring will not be transmitted to the moving gear through the refill. In this way, when the moving gear leaves the end of the guide rib, the moving gear will not move in the opposite direction due to the elastic force to produce a collision sound, thereby reducing the collision noise generated during the pressing of the pen to improve the user experience.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A press-type writing stationery, characterized in that: include: A pen holder, wherein the head of the pen holder is provided with an access hole, and the tail of the pen holder is provided with a pressing component; A pen core, wherein the head of the pen core is provided with a pen tip, the pen core is slidably arranged in the pen holder, the pen tip is close to the access hole, and the pressing component is configured to drive the pen core to slide in the pen holder; A spring, the spring being arranged in the pen holder and applying an elastic force to the pen core in a direction away from the access hole; A sealing assembly, the sealing assembly comprising a first guard plate, a second guard plate, a shielding plate and a connecting piece, the cross-sections of the first guard plate and the second guard plate are arc-shaped structures, the first guard plate and the second guard plate are arranged opposite to each other and form a mounting channel, the shielding plate is arranged at the end positions of the first guard plate and the second guard plate, a first flexible connection portion is formed between the shielding plate and the first guard plate, the connecting piece is located between the first guard plate and the second guard plate, a second flexible connection portion is formed between one end of the connecting piece and the second guard plate, and a third flexible connection portion is formed between the other end of the connecting piece and the shielding plate; The sealing assembly is arranged in the pen holder, the pen core is arranged in the installation channel, and the shielding plate is arranged at the access hole; the pen core is configured to drive the first guard plate and the second guard plate to move relative to each other during the process of extending out of the pen holder so that the shielding plate is flipped open outside the pen holder; In addition, the inner wall of the pen barrel is provided with a protruding positioning rib, the outer wall of the first guard plate is provided with a first positioning protrusion, and the outer wall of the second guard plate is provided with a second positioning protrusion; when the pen tip is retracted into the pen barrel, the distance between the first positioning protrusion and the positioning rib is smaller than the distance between the second positioning protrusion and the positioning rib.

2. The push-type writing stationery according to claim 1, characterized in that: During the process that the pen core slides in the pen barrel so that the pen tip extends from the entry and exit hole to the outside of the pen barrel, the first guard plate and the second guard plate are positioned on the pen barrel in sequence along the moving direction of the pen core; and, during the process that the first guard plate is positioned by the pen barrel and the second guard plate continues to move with the pen core, the shielding plate flips over outside the pen barrel to open the installation channel.

3. The push-type writing stationery according to claim 1, characterized in that: The first guard plate is provided with a first elastic portion, and the second guard plate is provided with a second elastic portion; A first driving part and a second driving part are provided on the outer wall of the pen core, the first driving part is configured to abut against the free end of the first elastic part to apply a thrust to the first guard plate when the pen core slides out and drives the first guard plate to move together, and the second driving part is configured to abut against the free end of the second elastic part to apply a thrust to the second guard plate when the pen core slides out and drives the second guard plate to move together.

4. The push-type writing instrument according to claim 3, characterized in that: The first driving part and the second driving part are groove structures formed on the outer wall of the pen core; or, the first driving part and the second driving part are protrusion structures formed on the outer wall of the pen core.

5. The push-type writing instrument according to claim 3, characterized in that: The free end of the first elastic part is provided with a first protrusion protruding toward the inner wall of the pen barrel, and the free end of the second elastic part is provided with a second protrusion protruding toward the inner wall of the pen barrel; The inner wall of the pen barrel is provided with a first avoidance groove and a second avoidance groove, the first avoidance groove is configured so that after the first positioning protrusion is clamped on the positioning rib, the first protrusion is located in the first avoidance groove so that the first elastic part leaves the first driving part, and the second avoidance groove is configured so that after the second positioning protrusion is clamped on the positioning rib, the second protrusion is located in the second avoidance groove so that the second elastic part leaves the second driving part.

6. The push-type writing instrument according to claim 5, characterized in that: The first guard plate is provided with a first hollow hole, in which the first elastic part is provided, and the second guard plate is provided with a second hollow hole, in which the second elastic part is provided.

7. The push-type writing instrument according to claim 3, characterized in that: A first pulling portion extending toward the second guard plate is provided at the end of the first guard plate away from the entry and exit hole, and a second pulling portion extending toward the first guard plate is provided at the end of the second guard plate away from the entry and exit hole, and the first pulling portion and the second pulling portion are arranged opposite to each other; a protrusion is provided on the outer wall of the pen core, and the protrusion is configured so that during the sliding and retraction process of the pen core, the protrusion pulls the second pulling portion and the first pulling portion in sequence.

8. The push-type writing instrument according to claim 7, characterized in that: A guide slot is formed between the relative edges of the first guard plate and the second guard plate, the protrusion is slidably arranged in the guide slot, and the first pulling part and the second pulling part are located at the end of the guide slot away from the access hole.

9. The push-type writing instrument according to claim 1, characterized in that: It also includes a sealing ring, which is sleeved on the pen core, and the outer edge of the sealing ring is against the inner wall of the pen shaft; when the pen core is retracted into the pen shaft, the shielding plate blocks the entrance and exit holes, and the shielding plate and the sealing ring form a sealed space between the pen shaft and the pen core, and the pen tip is located in the sealed space.

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