Push-type writing stationery

Abstract

The present invention discloses a push-type writing instrument, comprising: a penholder, wherein the head of the penholder is provided with an inlet and outlet hole, the tail of the penholder is provided with an elastic component, and the elastic component is provided with a first clamping portion; an ink tube, wherein the head of the ink tube is provided with a nib, and the ink tube is slidably disposed in the penholder, with the nib adjacent to the inlet and outlet hole; a pen clip, wherein the pen clip is provided with a second clamping portion, and the pen clip is disposed at the tail of the ink tube; and a spring, which is disposed in the penholder and applies an elastic force to the ink tube toward the pen clip. The pen clip is configured to follow the movement of the ink tube and drive the elastic component to deform, and the second clamping portion is configured to selectively engage with the first clamping portion to position the pen clip after the pen clip follows the movement of the ink tube. This simplifies the overall structure of the push-type writing instrument, facilitates assembly, and improves reliability.

Description

Technical Field

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

[0002] Currently, writing pens (such as ballpoint pens, oil-based pens, and gel pens) are essential stationery items in daily life and work. Depending on how they are used, writing pens are categorized into push-type and cap-type types. Push-type writing pens are widely used due to their ease of use. For push-type writing instruments that use ink, protecting the nib from drying out is particularly important. For example, Chinese Patent Publication No. CN114103527A discloses a push-type writing instrument comprising a penholder, a nib, a spring, and a pen clip. The user's pressure drives the nib to slide within the penholder, allowing the nib to extend or retract into the penholder. To keep the nib stationary after extending from the penholder, the pen clip engages a retaining ring on the nib. However, during use, the retaining ring rotates on the nib to engage with a slot on the nib for positioning. This can lead to stagnation and stalling, resulting in a poor user experience. In view of this, how to design a stationery with a simple structure, convenient assembly and improved 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 push-type writing stationery, so as to simplify the overall structure of the push-type writing stationery to facilitate assembly and improve reliability in use.

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

[0005] A penholder, wherein the head of the penholder is provided with an access hole, the tail of the penholder is provided with an elastic component, and the elastic component is provided with a first clamping portion;

[0006] An ink tube, wherein a pen tip is provided at the head of the ink tube, a pen cap is provided at the tail of the ink tube, the ink tube is slidably disposed in the pen barrel, and the pen tip is close to the inlet and outlet holes;

[0007] a pen clip, the pen clip being provided with a second clamping portion, and the pen clip being arranged at the tail end of the ink tube;

[0008] a spring, the spring being disposed in the pen barrel and exerting an elastic force on the ink tube toward the pen clip;

[0009] The pen clip is configured to move following the ink tube and drive the elastic component to deform, and the second clamping portion is configured to selectively clamp and position with the first clamping portion after the pen clip moves following the ink tube.

[0010] By arranging an elastic component with elastic deformation function on the pen barrel, and configuring a first clamping portion on the elastic component, and correspondingly configuring a second clamping portion on the pen clip, when in use, the user presses the ink tube to move in the pen barrel, so as to drive the elastic component to deform through the pen clip, thereby causing the first clamping portion to change its position. After the pen tip is extended from the pen barrel, the first clamping portion and the second clamping portion are used to cooperate to position the pen clip to keep the pen tip in an extended state. The elastic component only deforms during use and does not move or rotate, avoiding the problem of poor use due to the rotating clamp ring getting stuck, thereby improving the reliability of use, simplifying the overall structure of the press-type writing stationery to facilitate assembly, and improving the reliability of use.

[0011] Furthermore, after the pen tip extends from the pen barrel to the outside of the access hole, the second clamping portion is clamped and positioned with the first clamping portion; after the pen tip retracts from the outside of the access hole into the pen barrel, the second clamping portion and the first clamping portion are separated from each other.

[0012] Furthermore, the elastic component is arranged along the length direction of the pen holder, and the first clamping portion is a clamping protrusion formed on the elastic component;

[0013] The pen clip includes a clip, a connecting piece, and a mounting piece. One end of the clip is mounted on the mounting piece via the connecting piece. The mounting piece is connected to the ink tube. The connecting piece is provided with a clamping groove, which serves as the second clamping portion.

[0014] Wherein, after the pen tip extends from the pen barrel to the outside of the access hole, the engaging protrusion is engaged in the engaging groove and is used to prevent the ink tube from retracting under the action of the spring.

[0015] Furthermore, the side portion of the connecting member is further provided with the clamping groove, the first guide surface, the second guide surface and the third guide surface;

[0016] The direction from the tail to the head of the pen shaft is the first direction, and the direction from the outer wall of the pen shaft to the clip is the second direction;

[0017] Along the second direction, the first guide surface, the engaging groove and the third guide surface are arranged in sequence;

[0018] The first guide surface extends obliquely from the outer wall of the pen barrel toward the clamping groove along the first direction, the second guide surface extends obliquely from the clamping groove toward the third guide surface along the direction opposite to the first direction, and the third guide surface extends along the first direction to the edge of the connecting member.

[0019] Furthermore, the side wall of the connecting member is provided with a first guide surface, and the first guide surface is arranged between the clamping groove and the pen body and arranged in front of the first guide surface along the first direction; the first guide surface is inclined from the outer wall of the pen body toward the outer side of the connecting member along the second direction.

[0020] Furthermore, a second guide surface is provided on the side wall of the connecting member, and the second guide surface is inclined from the first guide surface toward the inner side of the connecting member along the first direction.

[0021] Furthermore, the second clamping parts are respectively provided on both sides of the connecting member; the elastic component is provided with a first guide groove, the first guide groove extends along the length direction of the pen shaft, and the clamping protrusions are arranged oppositely on both sides of the first guide groove. The tail of the pen shaft is provided with a notch connected to the first guide groove, and the connecting member can be slidably arranged in the first guide groove.

[0022] Furthermore, a second guide groove is provided on the pen shaft, and a guide block is provided on the pen clip, and the guide block is slidably provided in the second guide groove.

[0023] Furthermore, the elastic component and the pen holder are an integral structure, a receiving groove is provided on the pen holder, and the elastic component is a plate-mounted structure and is located in the receiving groove.

[0024] Furthermore, a positioning portion is provided on the inner wall of the pen barrel near the inlet and outlet holes, and a mounting portion is provided on the ink tube;

[0025] The press-type writing stationery also includes:

[0026] A sealing assembly, comprising a connecting tube and a sealing sleeve, wherein one end of the connecting tube is provided with a movable sealing portion, the sealing portion is further provided with a connecting portion, the sealing portion is used to selectively cover the port of the sealing sleeve, and the connecting portion is connected to the sealing sleeve;

[0027] The sealing assembly is arranged in the pen barrel, the connecting tube and the sealing sleeve are both sleeved on the ink tube, the sealing sleeve also abuts against the positioning portion, and the spring is located between the mounting portion and the sealing sleeve;

[0028] When the pen tip is retracted into the access hole, the pen tip is located in the sealing sleeve, and the sealing portion is located between the pen tip and the access hole and covers the port of the sealing sleeve;

[0029] When the pen tip is extended to the outside of the access hole, the sealing portion is located on one side of the sealing sleeve.

[0030] Furthermore, the pen tip passes through the port of the sealing sleeve, and the sealing sleeve pulls the sealing portion to one side of the sealing sleeve through the connecting portion.

[0031] Furthermore, the ink tube can drive the connecting tube to slide in the pen holder, and the sealing sleeve pulls the sealing portion through the connecting portion to move to open and close the port of the sealing sleeve.

[0032] Furthermore, a protrusion is provided on the outer wall of the sealing sleeve, and the protrusion abuts against the positioning portion.

[0033] Furthermore, the connecting portion has a clamping hole, and the connecting portion is clamped on the protruding portion through the clamping hole.

[0034] Furthermore, the connecting pipe, the sealing portion and the connecting portion are an integrated structure.

[0035] Furthermore, the end of the connecting pipe close to the inlet and outlet is provided with two oppositely arranged extension parts, a first flexible part is provided between the extension part and the sealing part, and a second flexible part is provided between the sealing part and the connecting part.

[0036] Furthermore, a clamping portion is provided at the other end of the connecting tube, and a pushing portion is also provided on the ink tube. The pushing portion is used to abut against the clamping portion to push the connecting tube to move relative to the pen body.

[0037] Furthermore, the engaging portion is an elastic member provided on the connecting tube, the free end portion of the elastic member is used to cooperate with the pushing portion, the outer surface of the free end portion of the elastic member is provided with a limiting protrusion, and the side wall of the pen body is provided with a limiting hole for cooperating with the limiting protrusion;

[0038] When the sealing portion leaves the end of the sealing sleeve and is located at one side of the sealing sleeve, the limiting protrusion is stuck in the limiting hole.

[0039] Furthermore, the pushing portion is a second step surface formed on the ink tube, and an edge of the second step surface forms a chamfered structure.

[0040] Furthermore, the inner wall of the pen barrel is provided with a first guide groove extending along the length direction, and the outer wall of the connecting tube is provided with a first slider, and the first slider is slidably arranged in the first guide groove.

[0041] Furthermore, a limit block is provided on the outer surface of the connecting portion, and the limit block is also located in the first guide groove.

[0042] Furthermore, a second guide groove is provided on the tube wall of the connecting tube, a second slider is provided on the tube wall of the ink tube, and the second slider is slidably provided in the second guide groove.

[0043] Compared with the prior art, the advantages and positive effects of the present invention are: the press-type writing stationery provided by the present invention seals the pen tip on the ink tube by configuring a sealing assembly. When not in use, the sealing part on the connecting tube cooperates with the sealing sleeve, and the sealing part blocks the port of the sealing sleeve to seal the pen tip inside the sealing sleeve. When the user presses the writing pen to extend the pen tip to the outside of the inlet and outlet, the sealing sleeve pulls the sealing part through the connecting part to move the sealing part so that the sealing part leaves the port of the sealing sleeve, thereby allowing the pen tip to pass through the sealing sleeve and extend to the outside of the pen shaft. As for the sealing assembly, it only includes the connecting tube and the sealing sleeve. The overall structure is simple and compact, which makes assembly more convenient and simple. The connecting tube and the sealing sleeve are connected by the connecting part, and the connection reliability is high, which is more conducive to improving the reliability of the writing pen in the later use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to 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 any creative labor.

[0045] Figure 1 This is a structural schematic diagram of an embodiment of the push-type writing stationery of the present invention in a closed state;

[0046] Figure 2 This is a schematic structural diagram of an embodiment of the push-type writing stationery of the present invention in an open state;

[0047] Figure 3 A partial cross-sectional view of an embodiment of a push-type writing stationery according to the present invention;

[0048] Figure 4 An exploded view of an embodiment of a push-type writing stationery according to the present invention;

[0049] Figure 5 for Figure 4 A partial enlarged schematic diagram of area A in the middle;

[0050] Figure 6 Schematic diagram of the structure of the pen clip in the embodiment of the push-type writing stationery of the present invention;

[0051] Figure 7 for Figure 6 A partial enlarged schematic diagram of area B in the middle;

[0052] Figure 8 A schematic diagram of the partial structure of the push-type writing stationery embodiment of the present invention in a closed state;

[0053] Figure 9 This is a schematic diagram of the partial structure of an embodiment of the push-type writing stationery of the present invention in an open state;

[0054] Figure 10 A partial cross-sectional view of an embodiment of the push-type writing stationery of the present invention in a closed state;

[0055] Figure 11 A partial cross-sectional view of an embodiment of the push-type writing stationery of the present invention in an open state;

[0056] Figure 12 Schematic diagram of the structure of the connecting tube in the embodiment of the push-type writing stationery of the present invention.

[0057] Reference numerals:

[0058] Pen 1;

[0059] Access hole 11, positioning portion 12, limiting hole 13, first guide groove 14, elastic component 15, second guide groove 16, accommodating groove 17;

[0060] The clamping protrusion 151, the first guide groove 152, and the notch 153;

[0061] Spring 2;

[0062] Ink tube 3;

[0063] Pen tip 31, mounting portion 32, pushing portion 33, second slider 34;

[0064] Sealing assembly 4;

[0065] Connecting pipe 41, sealing sleeve 42;

[0066] Sealing portion 411, connecting portion 412, mounting hole 413, extension portion 414, first flexible portion 415, second flexible portion 416, engaging portion 417, limiting protrusion 418, second guide groove 419, first slider 401, limiting block 402, and protrusion 421;

[0067] Pen clip 5;

[0068] Clip 51, connector 52, mounting member 53, guide block 54;

[0069] The clamping groove 521, the first guide surface 522, the second guide surface 523, the third guide surface 524, the first guide surface 525, and the second guide surface 526;

[0070] Pen cap 6. DETAILED DESCRIPTION

[0071] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0072] Example 1, as Figure 1-Figure 7 As shown, an embodiment of the present invention provides a press-type writing stationery, comprising:

[0073] A penholder 1, wherein the head of the penholder is provided with an access hole 11, the tail of the penholder is provided with an elastic component 15, and the elastic component 15 is provided with a first clamping portion;

[0074] An ink tube 3, wherein a pen tip is provided at the head of the ink tube, the ink tube is slidably disposed in the pen holder, and the pen tip is close to the inlet and outlet holes;

[0075] A pen clip 5 is provided with a second clamping portion, and the pen clip 5 is arranged at the tail end of the ink tube;

[0076] a spring 2, which is disposed in the pen barrel and applies an elastic force to the ink tube toward the pen clip 5;

[0077] The pen clip 5 is configured to move along with the ink tube and drive the elastic component 15 to deform, and the second clamping portion is configured to selectively engage with the first clamping portion for positioning after the pen clip 5 moves along with the ink tube.

[0078] Specifically, during assembly, the pen clip 5 is placed on the ink tube, and then the spring and the ink tube are assembled into the pen barrel. During use, the user applies a pressing force to the ink tube to drive the ink tube to slide in the pen barrel against the elastic force of the spring.

[0079] As the ink tube slides, it drives the pen clip 5 to move synchronously, and the clip 5 moves along the elastic member 15. As the pen tip 31 extends from the access hole 11 to the exterior of the pen barrel, the pen clip 5 moves to the first engaging portion of the elastic member 15. This first engaging portion contacts the pen clip 5, causing the elastic member 15 to deform, thereby engaging the first engaging portion with the second engaging portion of the pen clip 5. When the user presses the ink tube again and releases, the spring forces the ink tube to retract the pen tip into the pen barrel, simultaneously separating the first and second engaging portions.

[0080] In order to facilitate the user to press the ink tube 3, a pen cap 6 can also be configured on the ink tube 3. During use, the user applies pressing force to the pen cap to drive the ink tube to slide in the pen body against the elastic force of the spring.

[0081] In addition, after the pen tip extends from the pen barrel to the outside of the entry and exit hole, the second clamping portion and the first clamping portion are clamped and positioned; after the pen tip retracts from the outside of the entry and exit hole into the pen barrel, the second clamping portion and the first clamping portion are separated from each other.

[0082] By arranging an elastic component with elastic deformation function on the pen barrel, and configuring a first clamping portion on the elastic component, and correspondingly configuring a second clamping portion on the pen clip, when in use, the user presses the ink tube to move in the pen barrel, so as to drive the elastic component to deform through the pen clip, thereby causing the first clamping portion to change its position. After the pen tip is extended from the pen barrel, the first clamping portion and the second clamping portion are used to cooperate to position the pen clip to keep the pen tip in an extended state. The elastic component only deforms during use and does not move or rotate, avoiding the problem of poor use due to the rotating clamp ring getting stuck, thereby improving the reliability of use, simplifying the overall structure of the press-type writing stationery to facilitate assembly, and improving the reliability of use.

[0083] Furthermore, the elastic component 15 is arranged along the length direction of the pen holder, and the first clamping portion is a clamping protrusion 151 formed on the elastic component 15;

[0084] The pen clip 5 includes a clip 51, a connector 52, and a mounting member 53. One end of the clip 51 is mounted on the mounting member 53 via the connector 52. The mounting member 53 is connected to the ink tube. The connector 52 is provided with a snap-fitting groove 521, which serves as the second snap-fitting portion.

[0085] After the pen tip extends from the pen barrel to the outside of the access hole, the engaging protrusion 151 is engaged in the engaging groove 521 and is used to prevent the ink tube from retracting under the action of the spring.

[0086] Specifically, the first engaging portion of the elastic member 15 is a protrusion 151 formed thereon. Correspondingly, a recess 521 is formed on the pen clip 5 to engage with the protrusion 151. When the pen tip extends outside the pen barrel and needs to be positioned, the protrusion 151 engages with the recess 521, keeping the pen tip exposed outside the pen barrel. Furthermore, the mounting member 53 can be mounted on the ink tube. For example, the mounting member 53 can be sleeved onto the ink tube, or the pen clip 5 and the ink tube can be integrally injection molded.

[0087] Furthermore, in order to guide the engaging protrusion 151 to engage with the engaging groove 521 when the pen tip is extended, and correspondingly guide the engaging protrusion 151 to return to its original position after the pen tip is retracted, the side of the connecting member 52 is further provided with an engaging groove 521, a first guide surface 522, a second guide surface 523, and a third guide surface 524.

[0088] The direction from the tail to the head of the pen shaft is the first direction, and the direction from the outer wall of the pen shaft to the clip 51 is the second direction.

[0089] Along the second direction, the first guide surface 522, the engaging groove 521 and the third guide surface 524 are arranged in sequence;

[0090] The first guide surface 522 extends obliquely from the outer wall of the pen barrel toward the clamping groove 521 along the first direction, and the second guide surface 523 extends obliquely from the clamping groove 521 toward the third guide surface 524 along the direction opposite to the first direction. The third guide surface 524 extends along the first direction to the edge of the connecting member 52.

[0091] Specifically, during use, when the pen tip extends from the pen barrel, the pen clip 5 moves along with the ink tube. During the movement of the pen clip 5, the engaging protrusion 151 is first squeezed to the side of the connecting member 52 by the connecting member 52. After the user presses it to the bottom, the pen tip extends to the maximum distance outside the pen barrel. At this time, the engaging protrusion 151 is located behind the first guide surface 522. Then, when the user releases the pen tip, the ink tube retracts under the action of the spring, and the engaging protrusion 151 is guided by the first guide surface 522 to be engaged in the engaging groove 521. In this way, the pen clip 5 can be prevented from continuing to move, so that the pen tip remains outside the pen barrel.

[0092] When the user presses the pen again, the pen tip will be extended to the farthest distance outside the pen barrel again. During this process, the engaging protrusion 151 disengages from the engaging groove 521 and moves to the upper third guide surface 524 via the second guide surface 523. After the user lets go, under the action of the spring, the engaging protrusion 151 slides on the third guide surface 524 and finally disengages from the connecting piece 52 and resets. At the same time, the ink tube is also reset.

[0093] Since the elastic component 15 relies on its own elastic reset, the locking protrusion 151 is always tightly attached to the connecting member 52. At the same time, a stepped surface is formed between the first guide surface 522, the second guide surface 523 and the third guide surface 524, so that the elastic component 15 can only move sequentially through the first guide surface 522, the second guide surface 523 and the third guide surface 524 in sequence, thereby ensuring smooth use and reliability.

[0094] Furthermore, the side wall of the connecting member 52 is provided with a first guide surface 525, which is arranged between the clamping groove 521 and the pen body and arranged in front of the first guide surface 522 along the first direction; the first guide surface 525 is inclined from the outer wall of the pen body toward the outer side of the connecting member 52 along the second direction.

[0095] Specifically, when the pen tip extends from the pen holder, after the first guide surface 525 contacts the engaging protrusion 151, the inclined first guide surface 525 applies downward pressure to the engaging protrusion 151, allowing the engaging protrusion 151 to smoothly move to the rear side of the first guide surface 522 and prevent tilting. Furthermore, the sidewall of the connecting member 52 is provided with a second guide surface 526, which is inclined from the first guide surface 525 toward the inside of the connecting member 52 along the first direction. By ensuring that the second guide surface 526 first contacts the engaging protrusion 151, the user's pressing process is smoother, thereby improving the user experience.

[0096] Furthermore, the second clamping parts are respectively provided on both sides of the connecting member 52; the elastic component 15 is provided with a first guide groove 152, the first guide groove 152 extends along the length direction of the pen shaft, and oppositely arranged clamping protrusions 151 are provided on both sides of the first guide groove 152, and the tail of the pen shaft is provided with a notch 153 connected to the first guide groove 152, and the connecting member 52 is slidably set in the first guide groove 152.

[0097] Specifically, in order to ensure that the connecting member 52 can slide smoothly relative to the elastic member 15 while the snap-fitting protrusion 151 can be reliably and accurately positioned with the snap-fitting groove 521, a first guide groove 152 is provided on the elastic member 15 so that the connecting member 52 can be guided to slide in the first guide groove 152. At the same time, the snap-fitting grooves 521 on both sides of the connecting member 52 will cooperate with the snap-fitting protrusion 151 on the corresponding side to achieve more reliable snap-fitting positioning.

[0098] Furthermore, a second guide groove 16 is provided on the pen shaft, and a guide block 54 is provided on the pen clip 5 . The guide block 54 is slidably provided in the second guide groove 16 .

[0099] Specifically, the guide block 54 slides in the second guide groove 16 to further guide the pen clip 5 , thereby ensuring that the pen clip 5 can slide smoothly relative to the elastic component 15 .

[0100] Furthermore, the elastic component 15 and the pen holder are an integral structure. A receiving groove 17 is provided on the pen holder. The elastic component 15 is a plate-mounted structure and is located in the receiving groove 17 .

[0101] Specifically, the elastic component 15 is located in the receiving groove 17 when not under force, so that the overall appearance of the pen holder is more beautiful. In addition, the elastic component 15 and the pen holder are an integral structure, which is more convenient for processing, production and assembly.

[0102] Example 2, as Figures 8-12 As shown, based on the above technical solution, optionally, the push-type writing stationery of this embodiment includes:

[0103] The sealing assembly 4 includes a connecting tube 41 and a sealing sleeve 42. A movable sealing portion 411 is provided at one end of the connecting tube 41. The sealing portion 411 is further provided with a connecting portion 412. The sealing portion 411 is used to selectively cover the port of the sealing sleeve 42. The connecting portion 412 is connected to the sealing sleeve 42.

[0104] A positioning portion 12 is provided on the inner wall of the pen barrel 1 near the inlet and outlet hole 11, and a mounting portion 32 is provided on the ink tube 3.

[0105] The sealing assembly 4 is arranged in the pen body 1, the connecting tube 41 and the sealing sleeve 42 are both sleeved on the ink tube 3, the sealing sleeve 42 also abuts against the positioning portion 12, and the spring 2 is located between the mounting portion 32 and the sealing sleeve 42;

[0106] When the pen tip 31 is retracted into the access hole 11, the pen tip 31 is located in the sealing sleeve 42, and the sealing portion 411 is located between the pen tip 31 and the access hole 11 and covers the port of the sealing sleeve 42;

[0107] When the pen tip 31 is extended to the outside of the access hole 11 , the sealing portion 411 is located on one side of the sealing sleeve 42 .

[0108] Specifically, during the actual assembly process, the sealing sleeve 42 in the sealing assembly 4 is connected to the connecting portion 412 of the connecting tube 41. Then, the sealing sleeve 42 and the connecting tube 41 are put on the outside of the ink tube 3, and the spring 2 is clamped between the mounting portion 32 and the sealing sleeve 42. Finally, the ink tube 3 and the sealing assembly 4 are installed into the pen body 1, and the sealing sleeve 42 will rest against the positioning portion 12 in the pen body 1 to complete the assembly.

[0109] Among them, for press-type writing stationery, the corresponding configuration includes components such as a pen cap and a pressing structure. The pen cap is generally installed on the ink tube 3 to facilitate the user to press the pen cap to drive the ink tube 3 to move, and the pressing structure is used to position the pen tip 31 of the ink tube 3 after it is extended. The specific structural form can refer to the structure of a pen with a pressing function in conventional technology, and no limitation or elaboration is made here.

[0110] During use, when the user is not using the pen, the pen tip 31 retracts into the pen barrel 1 and is located within the sealing sleeve 42. At this time, the sealing portion 411 covers the end of the sealing sleeve 42, so that the exposed portion of the pen tip 31 is located in the relatively closed space formed by the sealing sleeve 42 and the sealing portion 411, thereby preventing the pen tip 31 from drying. When the user needs to write, they press the pen cap to move the ink tube 3 toward the inlet and outlet 11. The ink tube 3 will drive the connecting tube 41 to slide within the pen barrel 1. Because the sealing sleeve 42 cooperates with the positioning portion 12 to achieve positioning and cannot move, the sealing sleeve 42 pulls the sealing portion 411 through the connecting portion 412 to open and close the end of the sealing sleeve 42. Finally, the pen tip 31 passes through the end of the sealing sleeve 42 and is exposed from the inlet and outlet 11. The sealing sleeve 42 pulls the sealing portion 411 to one side of the sealing sleeve 42 through the connecting portion 412.

[0111] During the assembly process, the sealing component 4 only needs to install the connecting part 412 on the sealing sleeve 42 to complete the assembly, thereby effectively simplifying the assembly process; and during use, the sealing sleeve 42 pulls the sealing part 411 open through the connecting part 412, and the outside of the sealing part 411 does not need to be guided, which can effectively avoid jamming due to the guide of the slide groove, thereby improving the reliability of use.

[0112] Furthermore, a protrusion 421 is provided on the outer wall of the sealing sleeve 42 , and the protrusion 421 abuts against the positioning portion 12 .

[0113] Specifically, in order to facilitate the installation and positioning of the sealing sleeve 42, a first step surface is formed inside the pen body 1. The first step surface is arranged close to the inlet and outlet holes 11. After the ink tube 3 and the sealing assembly 4 are installed in the pen body 1, the protrusion 421 will rest against the first step surface.

[0114] Furthermore, the connecting portion 412 has a snap-fitting hole 413 , and the connecting portion 412 is snap-fitted onto the protruding portion 421 through the snap-fitting hole 413 .

[0115] Specifically, when the connecting tube 41 and the sealing sleeve 42 are assembled, the snap-fitting hole 413 formed in the connecting portion 412 snaps onto the raised portion 421, thereby connecting the connecting portion 412 and the sealing sleeve 42. This snap-fitting method of assembling the connecting tube 41 and the sealing sleeve 42 can effectively improve assembly efficiency and simplify the assembly process. Furthermore, the connecting portion 412 snaps onto the raised portion 421 on one side of the sealing sleeve 42, allowing the connecting portion 412 to easily pull the sealing portion 411 against one side of the sealing sleeve 42 to open the port of the sealing sleeve 42.

[0116] Preferably, the connecting tube 41, the sealing portion 411, and the connecting portion 412 are integrally formed. Specifically, the sealing portion 411 and the connecting portion 412 on the connecting tube 41 are integrally formed, for example, by injection molding. To allow the sealing portion 411 to be movably connected relative to the connecting tube 41, two oppositely arranged extensions 414 are provided at the end of the connecting tube 41 near the access hole 11. A first flexible portion 415 is provided between the extension 414 and the sealing portion 411, and a second flexible portion 416 is provided between the sealing portion 411 and the connecting portion 412.

[0117] Specifically, the connecting tube 41 is processed by injection molding, and the injection molding material is generally a material with a certain elasticity such as plastic. As for the first flexible portion 415 and the second flexible portion 416, they can be processed by locally narrowing the size. On the one hand, the sealing portion 411 is reliably connected to the connecting tube 41 and the connecting portion 412. On the other hand, the first flexible portion 415 and the second flexible portion 416 themselves can be deformed under force and automatically reset when the force gradually decreases, so as to meet the requirements of the active connection of the sealing portion 411.

[0118] Furthermore, in order to facilitate the ink tube 3 to drive the connecting tube 41 to slide in the pen body 1, a snap-fit ​​portion 417 is provided at the other end of the connecting tube 41, and a pushing portion 33 is also provided on the ink tube 3. The pushing portion 33 is used to abut against the snap-fit ​​portion 417 to push the connecting tube 41 to move relative to the pen body 1.

[0119] Specifically, when the user presses the pen to move the ink tube 3 toward the inlet / outlet 11, the push portion 33 abuts against the engaging portion 417, causing the ink tube 3 to move the connecting tube 41 along with it. During this movement of the connecting tube 41, the sealing sleeve 42 applies force to the sealing portion 411 via the connecting portion 412, thereby deforming the first flexible portion 415 and the second flexible portion 416. Ultimately, the sealing portion 411 disengages from the end of the sealing sleeve 42 and moves to one side of the sealing sleeve 42. The coupling between the engaging portion 417 and the push portion 33 can adopt conventional structures and is not limited here.

[0120] Because the pen tip 31 requires a relatively long stroke to extend, the travel of the connecting tube 41 is limited to prevent the flexible portion from breaking due to excessive travel of the connecting tube 41. To this end, the engaging portion 417 is an elastic member disposed on the connecting tube 41. The free end of the elastic member is configured to engage with the pushing portion 33. A limiting protrusion 418 is disposed on the outer surface of the free end of the elastic member. A limiting hole 13 is disposed on the side wall of the pen barrel 1 for engaging with the limiting protrusion 418. When the sealing portion 411 is separated from the end of the sealing sleeve 42 and positioned on one side of the sealing sleeve 42, the limiting protrusion 418 is engaged with the limiting hole 13.

[0121] Specifically, as the ink tube 3 drives the connecting tube 41 toward the inlet / outlet 11, the pusher 33 abuts the free end of the elastic member. At this point, the stopper protrusion 418 on the elastic member abuts the inner wall of the pen barrel 1. The elastic member is restrained by the inner wall of the pen barrel 1 and cannot bend outward, allowing the pusher 33 to push against the elastic member to drive the connecting tube 41. When the stopper protrusion 418 engages the stopper hole 13, the elastic member bends outward, causing the free end of the elastic member to separate from the pusher 33. The pusher 33 continues to move with the ink tube 3 and passes over the free end of the elastic member. At this point, the connecting tube 41 is unable to move further because the stopper protrusion 418 is stuck in the stopper hole 13.

[0122] The push portion 33 is a second stepped surface formed on the ink tube 3, with the edge of the second stepped surface chamfered. Specifically, the chamfered structure of the second stepped surface can guide and cooperate with the free end of the elastic member, allowing the push portion 33 to smoothly pass over the elastic member, thereby ensuring smooth pressing. Furthermore, the ink tube 3 can adopt a variable diameter structure, with the diameter of the ink tube 3 being thinner near the nib 31 and thicker away from the nib 31, thereby forming a second stepped surface at the intersection of the thick and thin diameters. The variable diameter design ensures that when the ink tube 3 retracts the nib 31, after the elastic member passes over the second stepped surface from the thicker portion of the ink tube 3, it is not squeezed by the wall of the thicker ink tube 3 and elastically resets to disengage from the limiting hole 13, allowing the connecting tube 41 to follow the ink tube 3 in its return.

[0123] During the retraction of the nib 31, to ensure the reliable and effective return of the connecting tube 41, a second guide groove 419 is provided on the wall of the connecting tube 41. A second slider 34 is also provided on the wall of the ink tube 3, and the second slider 34 slides within the second guide groove 419. Specifically, the second guide groove 419 and the second slider 34 cooperate to ensure smooth relative sliding between the connecting tube 41 and the ink tube 3. Furthermore, when the spring 2 drives the ink tube 3 to return, the second slider 34 engages the end of the second guide groove 419, pulling the connecting tube 41 along with it, thereby effectively returning the connecting tube 41. During the return process of the connecting tube 41, the first and second flexible portions 415, 416 also elastically return to their original position, ultimately allowing the sealing portion 411 to cover the port of the sealing sleeve 42.

[0124] Furthermore, the inner wall of the pen barrel 1 is provided with a first guide groove 14 extending along the length direction, and the outer wall of the connecting tube 41 is provided with a first slider 401, and the first slider 401 is slidably set in the first guide groove 14. Specifically, during the movement of the connecting tube 41, the first slider 401 cooperates with the first guide groove 14 to ensure smooth sliding. Among them, the outer surface of the connecting portion 412 is provided with a limit block 402, and the limit block 402 is also located in the first guide groove 14. In this way, the slider, the limit block and the first guide cooperate with each other to ensure that during the assembly process, the operator can accurately install the ink tube 3 and the connecting tube 41 through the guidance of the first guide groove 14. As for the positioning portion 12, it can be the end face of the first guide groove 14 close to the inlet and outlet hole 11. Correspondingly, the protrusion 421 is also located in the first guide groove 14 and abuts against the end position of the first guide groove 14.

[0125] Compared with the prior art, the advantages and positive effects of the present invention are: the press-type writing stationery provided by the present invention seals the pen tip on the ink tube by configuring a sealing assembly. When not in use, the sealing part on the connecting tube cooperates with the sealing sleeve, and the sealing part blocks the port of the sealing sleeve to seal the pen tip inside the sealing sleeve. When the user presses the writing pen to extend the pen tip to the outside of the inlet and outlet, the sealing sleeve pulls the sealing part through the connecting part to move the sealing part so that the sealing part leaves the port of the sealing sleeve, thereby allowing the pen tip to pass through the sealing sleeve and extend to the outside of the pen shaft. As for the sealing assembly, it only includes the connecting tube and the sealing sleeve. The overall structure is simple and compact, which makes assembly more convenient and simple. The connecting tube and the sealing sleeve are connected by the connecting part, and the connection reliability is high, which is more conducive to improving the reliability of the writing pen in the later use process.

[0126] 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 various embodiments of the present invention.

Claims

1. A press-type writing stationery, characterized in that: include: A penholder, wherein the head of the penholder is provided with an access hole, the tail of the penholder is provided with an elastic component, and the elastic component is provided with a first clamping portion; a positioning portion is further provided on the inner wall of the penholder near the access hole; An ink tube, wherein a pen tip is provided at the head of the ink tube, a pen cap is provided at the tail of the ink tube, the ink tube is slidably disposed in the pen barrel, and the pen tip is close to the inlet and outlet holes; a pen clip, the pen clip being provided with a second clamping portion, and the pen clip being arranged at the tail end of the ink tube; a spring, the spring being disposed in the pen barrel and exerting an elastic force on the ink tube toward the pen clip; The pen clip is configured to move with the ink tube and drive the elastic component to deform, and the second clamping portion is configured to selectively engage with the first clamping portion to position the pen clip after the pen clip moves with the ink tube. The elastic component is arranged along the length direction of the pen holder, and the first clamping portion is a clamping protrusion formed on the elastic component; The pen clip includes a clip, a connecting piece, and a mounting piece. One end of the clip is mounted on the mounting piece via the connecting piece. The mounting piece is connected to the ink tube. The connecting piece is provided with a clamping groove, which serves as the second clamping portion. Wherein, after the pen tip extends from the pen barrel to the outside of the access hole, the engaging protrusion is engaged in the engaging groove and is used to prevent the ink tube from retracting under the action of the spring.

2. The push-type writing stationery according to claim 1, characterized in that: After the pen tip extends from the pen barrel to the outside of the access hole, the second clamping portion and the first clamping portion are clamped and positioned; after the pen tip retracts from the outside of the access hole into the pen barrel, the second clamping portion and the first clamping portion are separated from each other.

3. The push-type writing stationery according to claim 1, characterized in that: The side of the connecting member is further provided with the clamping groove, the first guide surface, the second guide surface and the third guide surface; The direction from the tail to the head of the pen shaft is the first direction, and the direction from the outer wall of the pen shaft to the clip is the second direction; Along the second direction, the first guide surface, the engaging groove and the third guide surface are arranged in sequence; The first guide surface extends obliquely from the outer wall of the pen barrel toward the clamping groove along the first direction, the second guide surface extends obliquely from the clamping groove toward the third guide surface along the direction opposite to the first direction, and the third guide surface extends along the first direction to the edge of the connecting member.

4. The push-type writing instrument according to claim 3, wherein: The side wall of the connecting piece is provided with a first guide surface, which is arranged between the clamping groove and the pen body and arranged in front of the first guide surface along the first direction; the first guide surface is inclined from the outer wall of the pen body toward the outer side of the connecting piece along the second direction.

5. The push-type writing instrument according to claim 4, characterized in that: The side wall of the connecting member is provided with a second guide surface, and the second guide surface is inclined from the first guide surface toward the inner side of the connecting member along the first direction.

6. The push-type writing stationery according to any one of claims 1 to 5, characterized in that: The second clamping parts are respectively provided on both sides of the connecting member; the elastic component is provided with a first guide groove, the first guide groove extends along the length direction of the pen shaft, and the clamping protrusions are arranged oppositely on both sides of the first guide groove. The tail of the pen shaft is provided with a notch connected to the first guide groove, and the connecting member is slidably set in the first guide groove.

7. The push-type writing instrument according to claim 1, wherein: The ink tube is also provided with a mounting portion; The press-type writing stationery also includes: A sealing assembly, comprising a connecting tube and a sealing sleeve, wherein one end of the connecting tube is provided with a movable sealing portion, the sealing portion is further provided with a connecting portion, the sealing portion is used to selectively cover the port of the sealing sleeve, and the connecting portion is connected to the sealing sleeve; The sealing assembly is arranged in the pen barrel, the connecting tube and the sealing sleeve are both sleeved on the ink tube, the sealing sleeve also abuts against the positioning portion, and the spring is located between the mounting portion and the sealing sleeve; When the pen tip is retracted into the access hole, the pen tip is located in the sealing sleeve, and the sealing portion is located between the pen tip and the access hole and covers the port of the sealing sleeve; When the pen tip is extended to the outside of the access hole, the sealing portion is located on one side of the sealing sleeve.

8. The push-type writing instrument according to claim 7, wherein: A protrusion is provided on the outer wall of the sealing sleeve, and the protrusion abuts against the positioning portion.

9. The push-type writing instrument according to claim 7, wherein: The other end of the connecting tube is provided with a clamping portion, and the ink tube is further provided with a pushing portion, which is used to abut against the clamping portion to push the connecting tube to move relative to the pen holder.

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