A press pen

Abstract

The present invention provides a press pen, comprising a pen case, a pen core, and an automatic rebound assembly for driving the pen core to extend or automatically retract into the pen case, wherein the pen case comprises a nib shell and a body shell; the pen core comprises a writing portion and an extension portion that are interconnected and coaxially arranged, the nib shell being provided with an inlet and outlet for the writing portion and a guide channel for the extension portion to slide back and forth, the outer wall of the extension portion being in contact with or close to the inner wall of the guide channel; the extension portion never separates from the guide channel in the front-to-back direction to prevent the writing portion from contacting the inlet and outlet. The pen core of the present invention will not be significantly deflected during the process of entering and exiting the nib shell, thereby avoiding the problem of pen ink in the writing portion soiling the inlet and outlet of the nib shell, ensuring the cleanliness of the product and avoiding soiling of stored items. The pen core is not prone to shaking, thus truly solving the problem of poor concentricity during the entry and exit process of the pen core; the provision of an automatic rebound structure can further prevent dirt from contaminating stored items.

Description

Technical Field

[0001] The present invention relates to the technical field of stationery products, and in particular to a press pen. Background Art

[0002] Existing press-type pens such as gel pens and ballpoint pens have a problem of internal refill deflection. When writing, ink often remains at the tip of the refill. When the deflected refill is returned to the pen case, the ink comes into contact with the edge of the pen tip of the pen case, causing the pen tip to become dirty easily, thereby soiling items such as pencil cases, clothes, notebooks or bags in which the refill is stored. Summary of the Invention

[0003] To address at least one aspect of the above-mentioned problems, the present invention provides a press pen, comprising a pen housing, a pen refill, and an automatic rebound assembly for driving the pen refill to extend or automatically retract into the pen housing, the pen housing comprising a nib housing and a body housing connected to each other, the automatic rebound assembly being movably connected to the body housing; the pen refill comprising a writing portion and an extension portion connected to each other and coaxially arranged, the nib housing being provided with an inlet and outlet for the writing portion to enter and exit, and a guide channel for the extension portion to slide back and forth, the outer wall of the extension portion being in contact with or close to the inner wall of the guide channel; the pen refill having an extended writing state and a retracted storage state, wherein when in the extended writing state, the writing portion extends outside the inlet and outlet, and when in the retracted storage state, the writing portion is retracted and hidden within the inlet and outlet; and when the pen refill is in the extended writing state, the retracted storage state, or during the process of switching between the extended writing state and the retracted storage state, the extension portion always remains in the guide channel in the front-to-back direction to prevent the writing portion from contacting the inlet and outlet.

[0004] Optionally, the pen body shell includes a grip rod and a lean rod that are detachably connected to each other, the automatic rebound assembly is movably connected to the lean rod, the automatic rebound assembly includes a pressing piece, a conversion piece and a pen clip, and the pressing piece is movably connected to the conversion piece; the outer wall of the pressing piece is provided with a plurality of first gear teeth arranged at intervals, the inner wall of the lean rod is provided with a first gear groove that slides with the first gear teeth, the outer wall of the conversion piece is provided with second gear teeth, and the inner wall of the lean rod is provided with a second gear groove that slides with the second gear teeth; the outer wall of the conversion piece is provided with a limit block, the pen clip is provided with a stop block suitable for cooperating with the limit block, and the lean rod is provided with a through hole for the stop block to pass through.

[0005] Optionally, the end of the pen clip away from the stop block is hingedly connected to the outer wall of the leaning rod, the limit block is located directly in front of the second gear teeth, the number of the limit blocks and the second gear teeth is two, and the limit blocks and the second gear teeth are arranged in a one-to-one correspondence.

[0006] Optionally, the inlet and outlet are the front end openings of the guide channel; the guide channel is coaxially arranged with the inlet and outlet, and the inner diameter of the inlet and outlet is not less than the inner diameter of the guide channel; the pen core is coaxially arranged with the guide channel.

[0007] Optionally, the guide channel includes a plurality of long ridges arranged at intervals.

[0008] Optionally, the difference between the inner diameter of the guide channel and the outer diameter of the extension portion is less than or equal to 30 μm.

[0009] Optionally, the pen tip housing is further provided with a spring installation channel suitable for spring installation, the front end of the spring installation channel is provided with a step, the pen core is provided with an abutment platform, and the two ends of the spring abut against the step and the abutment platform respectively; the spring installation channel is coaxially arranged with the guide channel, and the inner diameter of the spring installation channel is larger than the inner diameter of the guide channel.

[0010] Optionally, the pen body shell includes a grip rod and a support rod that are detachably connected to each other, and the grip rod outer shell is provided with a suspended grip sleeve, and the suspended grip sleeve includes a grip sleeve body and a protrusion protruding from the inner wall of the grip sleeve body, and the protrusion abuts against the grip rod, so that the grip sleeve body is in a suspended state when writing.

[0011] Optionally, the grip sleeve body and the protrusion are both made of silicone, and the grip sleeve body and the protrusion are integrally injection-molded; and a gap between the grip sleeve body and the grip rod is connected to the outside air.

[0012] Optionally, a front opening and a rear opening are respectively provided at the front and rear ends of the grip sleeve body, and the front opening and the rear opening are used to connect the gap with the outside air. The raised portion includes a first raised portion and a second raised portion, and the first raised portion and the second raised portion are respectively arranged at the front opening and the rear opening; the first raised portion includes a plurality of first arc-shaped raised segments arranged at intervals, and a first gap is formed between two adjacent first arc-shaped raised segments; the second raised portion includes a plurality of second arc-shaped raised segments arranged at intervals, and a second gap is formed between two adjacent second arc-shaped raised segments, and the first gap and the second gap are staggered with each other; the raised portion includes a plurality of convex points arranged at intervals, and the convex points are spaced throughout the inner wall of the grip sleeve body.

[0013] Compared with the prior art, the writing part and the extension part of the press pen in the present invention are coaxially arranged, and the extension part is in sliding contact with or close to the guide channel, ensuring that the pen core will not be significantly deflected in the process of entering and exiting the pen tip shell, and the movement is stable, ensuring that the writing part will not touch the inlet and outlet when entering and exiting the pen tip shell, thereby avoiding the problem of ink from the writing part dirtying the inlet and outlet of the pen tip shell, ensuring the cleanliness of the product and avoiding soiling the stored items. In addition, the provision of the guide channel makes it difficult for the pen core to shake during the writing process, and the pen tip shell structure is also stronger, and the inlet and outlet are not easy to break; it truly solves the problem of poor concentricity during the entry and exit of the pen core, and solves the problem of the pen core causing the outside of the pen tip shell to be dirty due to the ink overflowing during writing, which causes pollution to the writing and storage scenes. It also solves the problem of the pen core shaking inside the writing experience, which causes the pen core to jump during writing and causes writing fatigue to the writer; in addition, the provision of an automatic rebound structure can further prevent dirt from contaminating the stored items. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural diagram of a pen tip structure according to an embodiment of the present invention;

[0015] Figure 2 is a cross-sectional view of a pen tip structure according to an embodiment of the present invention;

[0016] Figure 3 is a three-dimensional cross-sectional view of a pen tip housing according to an embodiment of the present invention;

[0017] Figure 4 A structural diagram of a pen refill according to an embodiment of the present invention;

[0018] Figure 5 is a cross-sectional view of a pen tip housing according to an embodiment of the present invention;

[0019] Figure 6 is a cross-sectional view of a pen tip housing according to another embodiment of the present invention;

[0020] Figure 7 This is a structural diagram of a suspended grip sleeve according to an embodiment of the present invention;

[0021] Figure 8 A perspective view of a suspended grip sleeve according to an embodiment of the present invention;

[0022] Figure 9 is a structural diagram of a pen according to an embodiment of the present invention;

[0023] Figure 10 A perspective view of a leaning bar according to an embodiment of the present invention;

[0024] Figure 11 1. An exploded view of the leaning rod and the automatic rebound assembly according to an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Suspended grip; 11. Grip body; 111. Front opening; 112. Rear opening; 12. First raised portion; 121. First arc-shaped raised section; 122. First gap; 13. Second raised portion; 131. Second arc-shaped raised section; 132. Second gap; 14. Protrusion; 2. Grip; 3. Leaning rod; 31. First wheel groove; 32. Second wheel groove; 33. Through hole; 34. Waistline; 4. Automatic rebound assembly; 41. Pressing part; 411. First gear; 42. Conversion part; 421. Second gear; 422. Limiting block; 43. Pen clip; 431. Stopper; 5. Pen tip shell; 51. Inlet and outlet; 52. Guide channel; 521. Long convex strip; 53. Spring installation channel; 531. Step; 6. Pen core; 61. Writing part; 62. Extension part; 63. Abutment platform. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature designated "first" or "second" may explicitly or implicitly include at least one such feature. The drawings of the embodiments of the present invention are provided with a coordinate axis Y, where the positive direction of the Y axis represents the front, and the negative direction of the Y axis represents the rear.

[0030] The embodiment of the present invention provides a pressing pen, combined with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9As shown, the pen comprises a pen housing, a pen refill 6, and an automatic rebound assembly 4 for driving the pen refill 6 to extend or automatically retract into the pen housing. The pen housing comprises a nib housing 5 and a pen body housing connected to each other, and the automatic rebound assembly 4 is movably connected to the pen body housing. The pen refill 6 comprises a writing portion 61 and an extension portion 62 connected to each other and coaxially arranged. The nib housing 5 is provided with an inlet and outlet 51 for the writing portion 61 to enter and exit, and a guide channel 52 for the extension portion 62 to slide back and forth. The outer wall of the extension portion 62 is in contact with or close to the inner wall of the guide channel 52. The pen core 6 has an extended writing state and a retracted storage state. When in the extended writing state, the writing part 61 extends to the outside of the inlet and outlet 51, and when in the retracted storage state, the writing part 61 retracts and hides inside the inlet and outlet 51. When the pen core 6 is in the extended writing state or the retracted storage state or in the process of switching between the extended writing state and the retracted storage state, the extension part 62 is always not separated from the guide channel 52 in the front-to-back direction to prevent the writing part 61 from contacting the inlet and outlet 51.

[0031] Among them, the end of the pen core 6 away from the writing part 61 is suitable for connecting with the automatic rebound component 4, and the automatic rebound component 4 can realize the pen core 6 to move forward and backward relative to the pen tip shell 5, that is, the pen core 6 can be switched between the extended writing state and the retracted storage state; the writing part 61 is used to write ink for writing or drawing, and the outer diameter of the writing part 61 is generally smaller than the outer diameter of the extension part 62, ensuring that the writing part 61 does not touch the inlet and outlet 51 when entering and exiting the pen tip shell 5; the outer wall of the extension part 62 is in sliding contact with or close to the inner wall of the guide channel 52 to ensure that the extension The portion 62 can move stably in the guide channel 52 and is not easily deflected, thereby ensuring that the writing portion 61 will not touch the inlet and outlet 51 when entering and exiting the pen tip shell 5; the guide channel 52 is preferably a cylindrical hole, but can also be a trumpet-shaped hole, a square hole, an elliptical hole, etc. The outer structure of the extension portion 62 is adapted to the shape of the guide channel 52; the writing portion 61 extending to the outside of the inlet and outlet 51 means that the writing portion 61 extends from the inside of the pen tip shell 5 and is exposed to the outside, and the writing portion 61 retracts into the inlet and outlet 51 means that the writing portion 61 retracts from the outside of the inlet and outlet 51 to the inside of the pen tip shell 5 for storage.

[0032] In the pen tip structure of this embodiment, the writing part 61 and the extension part 62 are coaxially arranged, and the extension part 62 is in sliding contact with or close to the guide channel 52, ensuring that the pen core 6 will not be significantly deflected in the process of entering and exiting the pen tip shell 5, and the movement is stable, ensuring that the writing part 61 will not touch the inlet and outlet 51 when entering and exiting the pen tip shell 5, thereby avoiding the problem of ink in the writing part 61 dirtying the inlet and outlet 51 of the pen tip shell 5, ensuring the cleanliness of the product and avoiding dirt on the stored items. In addition, the provision of the guide channel 52 makes it difficult for the pen core 6 to shake during writing, the structure of the pen tip shell 5 is also stronger, and the inlet and outlet 51 is not easy to break; it truly solves the problem of poor concentricity of the pen core 6 during the entry and exit process, solves the problem of the pen core 6 causing dirt on the outside of the pen tip shell 5 due to ink overflow during writing, and causes pollution to the writing and storage scenes, and also solves the problem of shaking inside the pen core 6 during writing, causing the pen core 6 to jump during writing, which brings writing fatigue to the writer; in addition, the provision of an automatic rebound structure can further prevent dirt from contaminating stored items.

[0033] Optionally, combined Figure 2 As shown, the inlet / outlet 51 is the front opening of the guide channel 52. Positioning the inlet / outlet 51 directly at the front opening of the guide channel 52 ensures a compact structure and minimizes the front-to-back length of the nib housing 5. Alternatively, the guide channel 52 and the inlet / outlet 51 may be spaced apart.

[0034] Optionally, combined Figure 2 As shown, the guide channel 52 is coaxially arranged with the inlet and outlet 51, and the inner diameter of the inlet and outlet 51 is not less than the inner diameter of the guide channel 52, that is, the inner diameter of the inlet and outlet 51 must be greater than or equal to the inner diameter of the guide channel 52, so as to further ensure that the writing part 61 will not touch the edge of the inlet and outlet 51.

[0035] Optionally, combined Figure 2 As shown, the guide channel 52 is a cylindrical hole; the outer shape of the refill 6 is generally composed of a cylindrical structure, and the shape of the guide channel 52 is adapted to the outer shape of the refill 6. The cylindrical hole is easy to process and has a reliable structure.

[0036] Optionally, combined Figure 5 、 Figure 6 As shown, the guide channel 52 includes a plurality of long ridges 521 arranged at intervals; the inner surfaces of the plurality of long ridges 521 are combined to form the guide channel 52, and the inner surfaces of the long ridges 521 are coaxially arranged with the inlet and outlet 51; Figure 5 As shown, the inner wall of the pen tip housing 5 is a straight cylindrical surface. Figure 6As shown, the inner wall of the pen tip shell 5 is a trumpet surface, and both the straight cylindrical surface and the trumpet surface can form a guide channel 52 of the cylindrical hole by extending inward to form a long convex strip 521. The modification is convenient, and the contact area between the outer wall of the extension part 62 and the guide channel 52 is reduced, thereby reducing friction, smaller resistance, and smaller friction noise.

[0037] Optionally, combined Figure 2 As shown, the difference between the inner diameter of the guide channel 52 and the outer diameter of the extension portion 62 is less than or equal to 30 μm, which can ensure high stability during writing and ensure that there is no shaking during writing, and can also ensure that the extension portion 62 can move freely in the guide channel 52; preferably, the inner diameter of the guide channel 52 is 23.5 μm larger than the outer diameter of the extension portion 62, the writing stability is best, and the writing portion 61 enters and exits the pen tip shell 5 most smoothly.

[0038] Optionally, combined Figure 2 As shown, the pen core 6 is coaxially arranged with the guide channel 52; the central axis of the pen core 6 is consistent with the central axis of the guide channel 52, ensuring that the pen core 6 always maintains a stable position during the process of entering and exiting the pen tip housing 5, further ensuring that the ink in the writing part 61 does not touch the inlet and outlet 51.

[0039] Optionally, combined Figure 2 、 Figure 3 、 Figure 4 As shown, the pen tip housing 5 is also provided with a spring installation channel 53 suitable for spring installation, the front end of the spring installation channel 53 is provided with a step 531, and the pen core 6 is provided with an abutment platform 63, and the two ends of the spring are respectively abutted against the step 531 and the abutment platform 63.

[0040] Among them, the spring is a compression spring. When the pen core 6 is in the extended writing state, the spring is in a compressed state. When the automatic rebound component 4 drives the pen core 6 to switch states, the spring force of the spring pushes the pen core 6 to switch to the retracted storage state; the spring installation channel 53 can prevent the spring from deflecting or shaking during the force-bearing process, thereby ensuring the stability of the pen core 6 state switching.

[0041] Optionally, combined Figure 2 、 Figure 3 As shown, the spring installation channel 53 is coaxially arranged with the guide channel 52, which can better control the movement of the pen core 6. The inner diameter of the spring installation channel 53 is larger than the inner diameter of the guide channel 52, preventing the spring from entering the guide channel 52, thereby ensuring the stable movement of the pen core 6.

[0042] Optionally, combined Figure 7 、 Figure 8 、 Figure 9As shown, the pen body shell includes a grip rod 2 and a support rod 3 that are detachably connected to each other. The grip rod 2 is covered with a suspended grip sleeve 1. The suspended grip sleeve 1 includes a grip sleeve body 11 and a raised portion protruding from the inner wall of the grip sleeve body 11. The raised portion abuts against the grip rod 2, so that the grip sleeve body 11 is in a suspended state when writing.

[0043] Among them, when writing, the fingers are held on the outer wall of the grip body 11, and the protrusion protrudes inward from the inner wall of the grip body 11, and the highest point of the protrusion will abut against the outer wall of the grip rod 2. The setting of the protrusion makes the inner wall of the grip body 11 not directly contact the outer wall of the grip rod 2; when the user holds the floating grip 1 and starts to write, the grip rod 2 will contact the protrusion, and the grip body 11 will be in a suspended state under the support of the protrusion, so that the contact between the grip body 11 and the grip rod 2 is limited to the protrusion, reducing the continuous friction and pressure between the inner wall of the grip and the grip rod 2. Therefore, when writing for a long time, the user's fingers will not suffer from the discomfort and pain caused by the close contact between the inner wall of the grip and the grip rod 2.

[0044] In this embodiment, a raised portion for supporting the grip body 11 is provided between the grip body 11 and the grip rod 2, so that the grip body 11 is in a suspended state, reducing the continuous friction and pressure between the inner wall of the grip and the grip rod 2. Especially when used for a long time, it can effectively reduce the pressure and friction on the fingers, so that the user can be more relaxed and comfortable during the writing process, no longer easily feel finger fatigue and discomfort, and the fingers will not form writing calluses, providing a more comfortable writing experience.

[0045] Optionally, combined Figure 7 、 Figure 8 As shown, the grip body 11 and the raised portion are both made of silicone, and the grip body 11 and the raised portion are integrally injection molded. Silicone is a soft, durable, and easy-to-process material. Its softness provides additional comfort when writing, while its durability ensures the service life of the floating grip 1. In addition, the grip body 11 and the raised portion can also be made of other soft materials. The grip body 11 and the raised portion are manufactured using an integral injection molding method, which helps ensure the consistency and quality of the grip, reduces assembly steps, and increases service life.

[0046] Optionally, combined Figure 7 、 Figure 8As shown, the gap between the grip sleeve body 11 and the grip rod 2 is connected to the outside air; the grip sleeve body 11 contacts the grip rod 2 through the protrusion, so that a gap can be generated between the grip sleeve body 11 and the grip rod 2, thereby achieving a suspension effect of the grip sleeve and reducing the close contact between the grip sleeve body 11 and the grip rod 2; the gap can be ventilated from the front and back ends of the grip sleeve body 11, and air holes can also be set on the wall of the grip sleeve body 11 for ventilation to ensure that the gas inside the gap can be freely exchanged to prevent the accumulation of air pressure, while maintaining a comfortable grip feeling and ensuring the stability of the grip.

[0047] Optionally, combined Figure 7 、 Figure 8 As shown, the front and rear ends of the grip body 11 are respectively provided with a front opening 111 and a rear opening 112, and the front opening 111 and the rear opening 112 are used for the gap to communicate with the outside air, and the protrusion includes a first protrusion 12 and a second protrusion 13, and the first protrusion 12 and the second protrusion 13 are respectively provided at the front opening 111 and the rear opening 112; the front opening 111 and the rear opening 112 are designed so that the gap inside the grip body 11 can be communicated with the outside air, so that the gas inside the gap can be freely exchanged at both the front and rear ends, thereby maintaining a suitable air pressure balance and avoiding The situation of air pressure accumulation inside the grip is avoided; the first protrusion 12 and the second protrusion 13 are in contact with the grip 2 to support the grip body 11, so that the other inner surfaces of the grip body 11 and the grip 2 are in a suspended state; when the user holds the floating grip 1 and starts writing, the grip 2 will contact the first protrusion 12 and the second protrusion 13, so that the grip body 11 is suspended above the grip 2, and due to the design of the front opening 111 and the rear opening 112, the gas inside the gap can be exchanged with the outside air to maintain a suitable air pressure balance, effectively improving the stability and comfort of the floating grip 1, and reducing finger fatigue and discomfort.

[0048] Optionally, combined Figure 7 、 Figure 8As shown, the first raised portion 12 includes a plurality of first arc-shaped raised segments 121 spaced apart, and a first gap 122 is formed between two adjacent first arc-shaped raised segments 121; the second raised portion 13 includes a plurality of second arc-shaped raised segments 131 spaced apart, and a second gap 132 is formed between two adjacent second arc-shaped raised segments 131; the first gap 122 and the second gap 132 are staggered with each other; the first arc-shaped raised segment 121 and the second arc-shaped raised segment 131 can not only fit the circular structure of the front opening 111 and the rear opening 112, but also play a good supporting role; the first gap 122 and the second gap 132 are used to connect the gas in the gap with the outside air; the first gap 122 and the second gap 132 are staggered, that is, their positions are not on the same line in the front-to-back direction. This staggered design makes it possible for the gas on the same line in the front-to-back direction to be discharged only from the front opening 111 or the rear opening 112, further ensuring the suspension effect of the grip and maintaining a comfortable grip. In addition, the first gap 122 and the second gap 132 may also be arranged without misalignment.

[0049] Optionally, combined Figure 7 、 Figure 8 As shown, the raised portion includes a plurality of convex points 14 arranged at intervals, and the convex points 14 are spaced apart and distributed over the entire inner wall of the grip body 11; the convex points 14 are in the shape of a hemispherical structure or other shapes, and the convex points 14 are distributed over the entire inner wall of the grip body 11, which helps to enhance the support of the suspended part of the grip body 11; the convex points 14 are arranged at intervals to ensure the gas circulation in the gaps within the grip body 11; when writing, the hand is held outside the grip body 11, and the air in the grip body 11 will be discharged. When the grip body 11 is released, the outside air will enter the grip body 11, so that the internal air of the product will circulate irregularly when in use, so as to increase the hand feel and comfort.

[0050] Optionally, combined Figures 7 to 11 As shown, the pen body shell includes a grip rod 2 and a leaning rod 3 that are detachably connected to each other, the automatic rebound component 4 is movably connected to the leaning rod 3, and the automatic rebound component 4 includes a pressing member 41, a conversion member 42 and a pen clip 43, and the pressing member 41 is movably connected to the conversion member 42; the outer wall of the pressing member 41 is provided with a plurality of first gear teeth 411 arranged at intervals, the inner wall of the leaning rod 3 is provided with a first gear groove 31 that slides with the first gear teeth 411, the outer wall of the conversion member 42 is provided with second gear teeth 421, and the inner wall of the leaning rod 3 is provided with a second gear groove 32 that slides with the second gear teeth 421; the outer wall of the conversion member 42 is provided with a limit block 422, the pen clip 43 is provided with a stop block 431 suitable for cooperating with the limit block 422, and the leaning rod 3 is provided with a through hole 33 for the stop block 431 to pass through.

[0051] Among them, the leaning rod 3 is detachably connected to the gripping rod 2 to facilitate the installation and replacement of the pen refill 6; the gripping rod 2 is provided with a recessed portion for the installation of the suspended grip 1, so that the overall surface of the pen has a smooth transition to ensure the comfort of writing; the outer contour of the leaning rod 3 has a waistline portion 34, and the waistline portion 34 rests on the base of the user's hand when writing, making the pen holding more comfortable and increasing the overall aesthetics.

[0052] There are multiple first wheel grooves 31, which are evenly spaced from each other. The first wheel grooves 31 have a certain length in the front-to-back direction, and their front ends have guide edges for cooperating with the guide protrusions of the pressing member 41. There are at least two second wheel grooves 32, and their front ends are also provided with guide edges for switching positions. When the pressing member 41 is pressed, the first gear 411 slides out of the first wheel groove 31, and at the same time, the conversion member 42 also moves forward under the thrust of the pressing member 41, and the second gear 421 slides out of the second wheel groove 32 synchronously. At this time, the writing part 61 of the pen core 6 extends out of the pen and is in the state of rotation. Under the action of the rotational guide between the pressing member 41 and the conversion member 42, the conversion member 42 rotates, causing the second gear tooth 421 to enter the next second gear groove 32. At this time, the upper end of the limit block 422 abuts against the lower end of the stop block 431 to prevent the pen core 6 from retracting, so that the pen core 6 is stably in the extended writing state, and the user can write normally. At this time, the spring outside the pen core 6 is in a compressed state; when the pen clip 43 is slightly rotated to disengage the stop block 431 and the limit block 422 from each other, the conversion member 42 moves backward and resets under the elastic force of the spring outside the pen core 6, and the pen core 6 is retracted into the pen.

[0053] In this embodiment, an automatic rebound assembly 4 is provided so that as long as the pen clip 43 is slightly lifted relative to the support rod 3, so that the stop block 431 is separated from the limit block 422, the pen refill 6 can be automatically retracted into the pen housing. Not only is the retraction of the pen refill 6 convenient, but even if the user forgets to retract the pen refill 6, when the pen clip 43 is placed on an object such as a book or clothing, the pen refill 6 can be automatically rebounded by the action of the pen clip 43 holding the object, ensuring that the book, clothing, etc. are not easily stained by pen ink, thereby avoiding unnecessary pollution.

[0054] Optionally, combined Figure 9 、 Figure 10 、 Figure 11As shown, the end of the pen clip 43 away from the stopper 431 is hingedly connected to the outer wall of the leaning rod 3. The pen clip 43 is hingedly connected to the leaning rod 3, so that when the pen clip 43 is rotated and raised relative to the leaning rod 3, the stopper 431 can be separated from the limit block 422, which is simple and quick to operate and has a simple structure. The limit block 422 is located directly in front of the second gear teeth 421. There are two limit blocks 422 and two second gear teeth 421, and the limit blocks 422 and the second gear teeth 421 are arranged one-to-one. There are two second gear teeth 421 and two second gear grooves 32. The two second gear teeth 421 are arranged symmetrically with each other, and the two second gear grooves 32 are also arranged symmetrically with each other to achieve the state change of the pen refill 6. The placement of the limit block 422 directly in front of the second gear teeth 421 ensures that the limit block 422 plays a correct guiding and limiting role during the automatic rebound process.

[0055] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A press pen, characterized in that: The invention comprises a pen case, a pen core (6), and an automatic rebound assembly (4) for driving the pen core (6) to extend or automatically retract the pen case, wherein the pen case comprises a pen tip shell (5) and a pen body shell connected to each other, and the automatic rebound assembly (4) is movably connected to the pen body shell; the pen core (6) comprises a writing portion (61) and an extension portion (62) connected to each other and arranged coaxially; the pen tip shell (5) is provided with an inlet and outlet (51) for the writing portion (61) to enter and exit, and a guide channel (52) for the extension portion (62) to slide forward and backward; the outer wall of the extension portion (62) is in contact with or close to the inner wall of the guide channel (52); the pen core (6) has a protruding writing state and retracted storage state, when in the extended writing state, the writing portion (61) extends out of the inlet and outlet (51), and when in the retracted storage state, the writing portion (61) retracts and hides inside the inlet and outlet (51); when the pen core (6) is in the extended writing state or the retracted storage state or in the process of switching between the extended writing state and the retracted storage state, the extension portion (62) is always not separated from the guide channel (52) in the front-to-back direction to prevent the writing portion (61) from contacting the inlet and outlet (51); the guide channel (52) is a cylindrical hole or a trumpet-shaped hole or a square hole or an elliptical hole; The pen body shell comprises a grip rod (2) and a support rod (3) which are detachably connected to each other; the grip rod (2) is provided with a suspended grip sleeve (1) on its outer cover; the suspended grip sleeve (1) comprises a grip sleeve body (11) and a raised portion protruding from the inner wall of the grip sleeve body (11); the raised portion abuts against the grip rod (2), so that the grip sleeve body (11) is in a suspended state when writing; The grip sleeve body (11) and the raised portion are both made of silicone, and the grip sleeve body (11) and the raised portion are integrally injection-molded; the gap between the grip sleeve body (11) and the grip rod (2) is in communication with the outside air; The front and rear ends of the grip body (11) are respectively provided with a front opening (111) and a rear opening (112), the front opening (111) and the rear opening (112) are used for the gap to communicate with the outside air, the raised portion includes a first raised portion (12) and a second raised portion (13), the first raised portion (12) and the second raised portion (13) are respectively provided at the front opening (111) and the rear opening (112); the first raised portion (12) includes a plurality of first arc-shaped raised segments (121) arranged at intervals, Two adjacent first arc-shaped raised sections (121) are spaced apart to form a first gap (122); the second raised portion (13) includes a plurality of second arc-shaped raised sections (131) spaced apart to form a second gap (132); the first gap (122) and the second gap (132) are staggered with each other; the raised portion includes a plurality of spaced apart convex points (14); the convex points (14) are spaced apart to cover the entire inner wall of the grip sleeve body (11).

2. The pressing pen according to claim 1, characterized in that: The pen body shell comprises a grip rod (2) and a lean rod (3) which are detachably connected to each other; the automatic rebound assembly (4) is movably connected to the lean rod (3); the automatic rebound assembly (4) comprises a pressing member (41), a conversion member (42) and a pen clip (43); the pressing member (41) is movably connected to the conversion member (42); the outer wall of the pressing member (41) is provided with a plurality of first gear teeth (411) arranged at intervals; the inner wall of the lean rod (3) is provided with a plurality of first gear teeth (411) arranged at intervals; 1) a first wheel groove (31) for sliding engagement, the outer wall of the conversion member (42) is provided with a second wheel tooth (421), the inner wall of the leaning rod (3) is provided with a second wheel groove (32) for sliding engagement with the second wheel tooth (421); the outer wall of the conversion member (42) is provided with a limit block (422), the pen clip (43) is provided with a stop block (431) suitable for engaging with the limit block (422), and the leaning rod (3) is provided with a through hole (33) for the stop block (431) to pass through.

3. The pressing pen according to claim 2, characterized in that: One end of the pen clip (43) away from the stop block (431) is hingedly connected to the outer wall of the leaning rod (3); the limit block (422) is located directly in front of the second gear teeth (421); the number of the limit blocks (422) and the second gear teeth (421) is two, and the limit blocks (422) and the second gear teeth (421) are arranged in a one-to-one correspondence.

4. The pressing pen according to claim 1, wherein: The inlet and outlet (51) is the front end opening of the guide channel (52); the guide channel (52) and the inlet and outlet (51) are coaxially arranged, and the inner diameter of the inlet and outlet (51) is not less than the inner diameter of the guide channel (52); the pen core (6) is coaxially arranged with the guide channel (52).

5. The pressing pen according to claim 1, characterized in that: The guide channel (52) includes a plurality of long convex strips (521) arranged at intervals.

6. The pressing pen according to claim 1, wherein: The difference between the inner diameter of the guide channel (52) and the outer diameter of the extension portion (62) is less than or equal to 30 μm.

7. The pressing pen according to claim 1, wherein: The pen tip housing (5) is further provided with a spring installation channel (53) suitable for installing a spring, a step (531) is provided at the front end of the spring installation channel (53), the pen core (6) is provided with an abutment platform (63), and the two ends of the spring abut against the step (531) and the abutment platform (63) respectively; the spring installation channel (53) is coaxially arranged with the guide channel (52), and the inner diameter of the spring installation channel (53) is larger than the inner diameter of the guide channel (52).

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