Electronic pen point structure

Abstract

The utility model relates to the technical field of touch control pens, and discloses an electronic pen point structure which comprises a pen body, a positioning structure, a buffering piece and a silicon rubber case, the pen body is provided with a first direction, and a containing hole extending in the first direction is formed in the end of the pen body; the positioning structure is fixed in the accommodating hole and is provided with a through hole extending along the first direction; the buffering piece is installed in the through hole in a penetrating mode, matched with the positioning structure in a limiting mode in the first direction and provided with a buffering part protruding out of the end, away from the pen body, of the positioning structure; the silica gel sleeve is installed at the end, away from the pen body, of the positioning structure and wraps the buffering part, the silica gel sleeve and the positioning structure are clamped and matched in the first direction, and a buffering gap is formed between the silica gel sleeve and the buffering part. A buffering gap is formed between the silicon rubber case and the buffering part, so that the silicon rubber case has the touch effect that the initial section is soft and the rear section is powerful, even if the pen point is accidentally impacted, the buffering part can play a role in effectively buffering impact, and the situation that the silicon rubber case collapses, deforms and is difficult to reset is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of touch pens, in particular to a pen tip structure of an electronic pen. Background Art

[0002] With the wide application of touch screens, products such as mobile phones, tablet computers, and e-readers are equipped with electronic pens for touch operation. Using an electronic pen can replace finger operation, avoid inconvenient touch due to long nails, and improve the accuracy and comfort of touch operation.

[0003] For example, a Chinese utility model patent with the authorization announcement number CN219891640U and the authorization announcement date of October 24, 2023 discloses a passive touch pen tip, which specifically includes a conductive metal rod, conductive silicone, conductive cloth, and a plastic cover. A convex head is provided at the upper end of the conductive metal rod, and the convex head is integrally formed with the conductive metal rod body. A limiting collar is also provided on the conductive metal rod. The conductive silicone is provided with a conductive silicone positioning portion, and the conductive silicone positioning portion abuts against the top of the limiting collar. The top of the conductive silicone abuts against the convex head at the top of the conductive metal rod. The bottom of the conductive cloth is provided with an edge bulge portion. The conductive cloth is sleeved on the conductive silicone, the top of the conductive cloth abuts against the top of the conductive silicone, and the bottom of the conductive cloth abuts against the upper portion of the conductive silicone positioning portion. The convex head of the conductive metal rod penetrates through the bottom of the plastic cover and exits from the top, and the plastic cover cooperates with the limiting collar of the conductive metal rod to fix the conductive metal rod.

[0004] The passive touch pen tip in the prior art adopts the design of a conductive metal rod, conductive silicone, conductive cloth, and a plastic cover, and the conductive metal rod is inside the conductive silicone. However, the conductive metal rod supports the conductive silicone, resulting in a relatively large contact stress of the touch pen tip and an ineffective buffering effect during accidental impact. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing passive touch pen tip has a relatively large contact stress and cannot play an effective buffering role during accidental impact.

[0006] To solve the above technical problems, the utility model provides a technical solution for the pen tip structure of an electronic pen:

[0007] The pen tip structure of an electronic pen includes:

[0008] A pen body having a first direction, and a receiving hole extending along the first direction is formed at an end of the pen body;

[0009] A positioning structure fixedly installed in the receiving hole, and a through hole extending along the first direction is formed in the positioning structure;

[0010] A buffer member, which is installed through the through hole, is in limit cooperation with the positioning structure along the first direction, and the buffer member has a buffer portion protruding from one end of the positioning structure away from the pen body;

[0011] A silica gel sleeve, which is installed at one end of the positioning structure away from the pen body and covers the buffer portion, is in locking cooperation with the positioning structure along the first direction, and there is a buffer gap between the silica gel sleeve and the buffer portion.

[0012] Furthermore, the maximum distance of the buffer gap in the first direction is any dimension between 0.2 mm and 0.4 mm.

[0013] Furthermore, the buffer portion is a hemispherical buffer portion, the center of the buffer portion is coaxially arranged with the axis of the through hole, the end of the silica gel sleeve is a hemispherical end, and the hemispherical end is in concave-convex cooperation with the hemispherical buffer portion.

[0014] Furthermore, a stop portion is provided on the hole wall of the through hole, a protrusion portion is provided on the buffer member, the protrusion portion is in limit cooperation with the stop portion along the first direction, and the buffer portion is in limit cooperation with the end of the positioning structure along the first direction.

[0015] Furthermore, the through hole is a stepped through hole, the stop portion is an annular stop surface, and the stop portion protrudes toward the center of the through hole along a plane perpendicular to the first direction.

[0016] Furthermore, the positioning structure is a positioning sleeve, a threaded post section is provided on the positioning structure, a threaded hole section is provided on the hole wall of the accommodating hole, and the threaded post section is matched with the threaded hole section.

[0017] Furthermore, a first convex edge is further provided on the positioning structure, the first convex edge is located at the end of the threaded post section, a first groove is provided on the hole wall of the accommodating hole, the first groove is located at the end of the threaded hole section, and the first convex edge is in stop cooperation with the first groove along the first direction.

[0018] Furthermore, a second groove is provided on the positioning structure, a second convex edge is further provided on the silica gel sleeve, and the second convex edge is in locking cooperation with the second groove.

[0019] Furthermore, a third groove is further provided on the positioning structure, the second groove and the third groove are spaced apart along the first direction, a third convex edge is further provided on the silica gel sleeve, and the third convex edge is in positioning cooperation with the third groove.

[0020] Further, an enlarged hole section is provided at the end of the accommodation hole. The silica gel sleeve is clamped between the hole wall of the enlarged hole section and the positioning structure, and a conductive cloth is coated on the silica gel sleeve.

[0021] Compared with the prior art, the beneficial effect of the pen tip structure of the electronic pen of the present utility model is as follows: The pen tip structure of the electronic pen adopts the design form of a pen body, a positioning structure, a buffer member, and a silica gel sleeve. An accommodation hole extending in the first direction is provided at the end of the pen body. The positioning structure is fixedly installed in the accommodation hole. A through hole extending in the first direction is provided on the positioning structure. The buffer member is installed through the through hole. Moreover, the buffer member has a buffer portion protruding from the end of the positioning structure away from the pen body.

[0022] Using the positioning structure as the installation basis of the buffer member, the position of the buffer member in the pen body along the first direction is reliably defined by the positioning structure, ensuring the relative position of the buffer member and the pen body is fixed, and ensuring that the buffer portion can be stably maintained at the end of the positioning structure, thereby effectively supporting the silica gel sleeve inside.

[0023] Among them, the silica gel sleeve is installed at the end of the positioning structure away from the pen body and covers the buffer portion. The silica gel sleeve and the positioning structure are in a snap-fit along the first direction, and a buffer gap is provided between the silica gel sleeve and the buffer portion. The positioning structure can play a role in clamping and limiting the silica gel sleeve, ensuring that the silica gel sleeve is reliably installed at the end of the positioning structure and preventing the possible detachment during the use of the pen tip.

[0024] In addition, a buffer gap is provided between the silica gel sleeve and the buffer portion of the buffer member. During touch use, pressing the silica gel sleeve causes it to undergo elastic extrusion deformation. The buffer gap is compressed until the silica gel sleeve comes into extrusion contact with the buffer portion, and the buffer portion plays a role in strengthening the supporting force on the silica gel sleeve. It is precisely because the buffer gap is designed between the silica gel sleeve and the buffer portion of the pen tip of the electronic pen that the silica gel sleeve has a soft initial stage and a strong later stage tactile effect. Even if the pen tip of the electronic pen is accidentally impacted, the buffer portion can effectively buffer the impact and prevent the situation where the silica gel sleeve collapses and deforms and is difficult to reset. Description of the Drawings

[0025] Figure 1 is a schematic cross-sectional view of the pen tip structure of the electronic pen in the first direction in an embodiment of the present utility model;

[0026] Figure 2 is a schematic front view of the positioning structure and the buffer member in an embodiment of the present utility model;

[0027] Figure 3 is a schematic cross-sectional view of the silica gel sleeve of the pen tip structure of the electronic pen in the first direction in an embodiment of the present utility model;

[0028] In the figure: 1 - pen body, 10 - accommodation hole, 11 - threaded hole section, 12 - first groove, 13 - reamed section, 2 - positioning structure, 20 - through hole, 21 - stop portion, 22 - threaded post section, 23 - first flange, 24 - second groove, 25 - third groove, 3 - buffer member, 30 - buffer portion, 31 - protrusion, 4 - silicone sleeve, 40 - buffer gap, 41 - hemispherical end, 42 - second flange, 43 - third flange, 5 - conductive cloth, X - first direction. Detailed implementation manners

[0029] The following combines the accompanying drawings and embodiments to further describe in detail the detailed implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. in the present utility model is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] Such as Figures 1 to 3As shown in the figure, a pen tip structure of an electronic pen according to an embodiment of the present invention includes a pen body 1, a positioning structure 2, a buffer member 3, and a silicone sleeve 4. The pen body 1 has a first direction X, and an accommodation hole 10 extending along the first direction X is formed at the end of the pen body 1; the positioning structure 2 is fixedly installed in the accommodation hole 10, and a through hole 20 extending along the first direction X is formed inside the positioning structure 2; the buffer member 3 is installed through the through hole 20, the buffer member 3 is in limit fit with the positioning structure 2 along the first direction X, and the buffer member 3 has a buffer portion 30 protruding from one end of the positioning structure 2 away from the pen body 1; the silicone sleeve 4 is installed at one end of the positioning structure 2 away from the pen body 1 and covers the buffer portion 30, the silicone sleeve 4 is in locking fit with the positioning structure 2 along the first direction X, and a buffer gap 40 is provided between the silicone sleeve 4 and the buffer portion 30.

[0034] The pen tip structure of the electronic pen adopts the design form of the pen body 1, the positioning structure 2, the buffer member 3 and the silicone sleeve 4. An accommodation hole 10 extending along the first direction X is formed at the end of the pen body 1. The positioning structure 2 is fixedly installed in the accommodation hole 10. A through hole 20 extending along the first direction X is formed on the positioning structure 2. The buffer member 3 is installed through the through hole 20. Moreover, the buffer member 3 has a buffer portion 30 protruding from one end of the positioning structure 2 away from the pen body 1.

[0035] Using the positioning structure 2 as the installation base of the buffer member 3, the position of the buffer member 2 in the pen body 1 along the first direction X is reliably limited by the positioning structure 2, ensuring the relative position between the buffer member 2 and the pen body 1 is fixed, and ensuring that the buffer portion 30 can be stably maintained at the end of the positioning structure 2, thereby effectively supporting the silicone sleeve 4 inside.

[0036] Among them, the silicone sleeve 4 is installed at one end of the positioning structure 2 away from the pen body 1 and covers the buffer portion 30. The silicone sleeve 4 is in locking fit with the positioning structure 2 along the first direction X, and a buffer gap 40 is provided between the silicone sleeve 4 and the buffer portion 30. The positioning structure 2 can play a role in locking and limiting the silicone sleeve 4, ensuring that the silicone sleeve 4 is reliably installed at the end of the positioning structure 2 and preventing the possible detachment during the use of the pen tip.

[0037] In addition, a buffer gap 40 is provided between the silicone sleeve 4 and the buffer portion 30 of the buffer member 3. During touch use, the silicone sleeve 4 is pressed to cause elastic extrusion deformation. The buffer gap 40 is compressed until the silicone sleeve 4 is in extrusion contact with the buffer portion 30, and the buffer portion 30 plays a role in strengthening the supporting force on the silicone sleeve 4. It is precisely because the buffer gap 40 is designed between the silicone sleeve 4 and the buffer portion 30 of the pen tip of the electronic pen that the silicone sleeve 4 has a soft initial section and a strong later section tactile effect. Even if the pen tip of the electronic pen is accidentally impacted, the buffer portion 30 can effectively buffer the impact and prevent the silicone sleeve 4 from collapsing and deforming and being difficult to reset.

[0038] In this embodiment, the maximum distance D of the buffer gap 40 in the first direction is any dimension between 0.2 mm and 0.4 mm, that is, the initial touch distance of the pen tip is 0.2 mm to 0.4 mm, which better conforms to the squeezing force degree of the user's touch operation. Specifically, the buffer portion 30 is a hemispherical buffer portion, the center of the buffer portion 30 is coaxially arranged with the hole axis of the through hole 20, the end of the silica gel sleeve 4 is a hemispherical end 41, and the hemispherical end 41 is in concave-convex fit with the hemispherical buffer portion. The buffer member 3 is a silica gel buffer rod, and a hemispherical buffer portion is integrally formed at its end, and the touch smoothness of the hemispherical end 41 is better.

[0039] As a further preferred solution, a stop portion 21 is provided on the hole wall of the through hole 20, a protrusion portion 31 is provided on the buffer member 3, and the protrusion portion 31 and the stop portion 21 are in limit fit along the first direction X, and the buffer portion 30 and the end of the positioning structure 2 are in limit fit along the first direction X. Specifically, the through hole 20 is a stepped through hole, the stop portion 21 is an annular stop surface, and the stop portion 21 protrudes toward the center of the through hole 20 along a plane perpendicular to the first direction X.

[0040] By using the limit fit between the protrusion portion 31 of the buffer member 3 and the annular stop surface of the stepped through hole, and moreover, the limit fit between the buffer portion 30 and the end of the positioning structure 2, both of these limit fit positions are in the first direction X and are arranged in opposite directions, which reliably limits the relative position of the buffer member 3 on the positioning structure 2 and ensures that the buffer portion 30 plays an effective supporting role inside the silica gel sleeve 4.

[0041] In this embodiment, the positioning structure 2 is a positioning sleeve, the positioning sleeve is made of a metal material, a threaded column section 22 is provided on the positioning structure 2, and a threaded hole section 11 is provided on the hole wall of the accommodating hole 10, and the threaded column section 22 is matched with the threaded hole section 11. Since the positioning structure 2 and the pen body 1 are assembled by means of threads, it is convenient for the assembly operation of the positioning structure 2 and at the same time ensures the assembly accuracy.

[0042] Moreover, a first convex edge 23 is further provided on the positioning structure 2, the first convex edge 23 is located at the end of the threaded column section 22, a first groove 12 is provided on the hole wall of the accommodating hole 10, the first groove 12 is located at the end of the threaded hole section 11, and the first convex edge 23 and the first groove 12 are in stop fit along the first direction X. The stop fit between the first convex edge 23 of the positioning structure 2 and the first groove 12 of the accommodating hole 10 effectively limits the threaded assembly position of the positioning structure 2 in the first direction X.

[0043] As a further preferred solution, a second groove 24 is provided on the positioning structure 2, and a second convex edge 42 is further provided on the silica gel sleeve 4. The second convex edge 42 is in clamping fit with the second groove 24. A third groove 25 is further provided on the positioning structure 2. The second groove 24 and the third groove 25 are spaced apart along the first direction X. A third convex edge 43 is further provided on the silica gel sleeve 4. The third convex edge 43 is in positioning fit with the third groove 25. By using the second groove 24 and the third groove 25 of the positioning structure 2 to be in positioning fit with the second convex edge 42 and the third convex edge 43 of the silica gel sleeve 4 respectively, the installation reliability of the silica gel sleeve 4 on the positioning structure 2 is ensured.

[0044] In addition, a reamed section 13 is provided at the end of the receiving hole 10. The silica gel sleeve 4 is clamped between the hole wall of the reamed section 13 and the positioning structure 2, and a conductive cloth 5 is coated on the silica gel sleeve 4. The conductive cloth 5 is adhered to the outer surface of the silica gel sleeve 4 through a back adhesive. The positioning structure 2 and the reamed section 13 of the receiving hole 10 together play a limiting role perpendicular to the first direction X on the silica gel sleeve 4, ensuring that the silica gel sleeve 4 is firmly clamped in the second groove 24 and the third groove 25 of the positioning structure 2, and ensuring the installation stability of the silica gel sleeve 4.

[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An electronic pen tip structure, characterized in that, include: A pen body (1), the pen body (1) having a first direction (X), and an end portion of the pen body (1) being provided with a receiving hole (10) extending along the first direction (X); A positioning structure (2), the positioning structure (2) being fixedly installed in the accommodating hole (10), and the positioning structure (2) being provided with a through hole (20) extending along the first direction (X); A buffer member (3), the buffer member (3) is installed through the through hole (20), the buffer member (3) and the positioning structure (2) are limitedly matched along the first direction (X), and the buffer member (3) has a buffer portion (30) protruding from the end of the positioning structure (2) away from the pen body (1); A silicone sleeve (4), the silicone sleeve (4) being mounted on an end of the positioning structure (2) away from the pen body (1) and covering the buffer portion (30), the silicone sleeve (4) and the positioning structure (2) being locked together along the first direction (X), and a buffer gap (40) being provided between the silicone sleeve (4) and the buffer portion (30).

2. The electronic pen tip structure according to claim 1, characterized in that, The maximum distance of the buffer gap (40) in the first direction (X) is any size between 0.2 mm and 0.4 mm.

3. The electronic pen tip structure according to claim 1, characterized in that, The buffer portion (30) is a hemispherical buffer portion, the center of the buffer portion (30) is coaxially arranged with the hole axis of the through hole (20), and the end of the silicone sleeve (4) is a hemispherical end head (41), and the hemispherical end head (41) is concave-convexly matched with the hemispherical buffer portion.

4. The electronic pen tip structure according to claim 1, characterized in that, The hole wall of the through hole (20) is provided with a stopper (21), the buffer member (3) is provided with a protrusion (31), the protrusion (31) and the stopper (21) are limitedly matched along the first direction (X), and the buffer (30) and the end of the positioning structure (2) are limitedly matched along the first direction (X).

5. The electronic pen tip structure according to claim 4, characterized in that, The through hole (20) is a step-type through hole, the stop portion (21) is an annular stop surface, and the stop portion (21) is arranged to protrude toward the center direction of the through hole (20) along a plane perpendicular to the first direction (X).

6. The electronic pen tip structure according to claim 1, characterized in that, The positioning structure (2) is a positioning sleeve, a threaded column section (22) is provided on the positioning structure (2), a threaded hole section (11) is provided on the hole wall of the accommodating hole (10), and the threaded column section (22) cooperates with the threaded hole section (11).

7. The electronic pen tip structure according to claim 6, characterized in that, The positioning structure (2) is also provided with a first protrusion (23), the first protrusion (23) is located at the end of the threaded column section (22), the hole wall of the accommodating hole (10) is provided with a first groove (12), the first groove (12) is located at the end of the threaded hole section (11), and the first protrusion (23) and the first groove (12) are blocked and matched along the first direction (X).

8. The electronic pen tip structure according to claim 7, characterized in that, The positioning structure (2) is provided with a second groove (24), and the silicone sleeve (4) is also provided with a second convex edge (42), and the second convex edge (42) is locked and matched with the second groove (24).

9. The electronic pen tip structure according to claim 8, characterized in that, The positioning structure (2) is further provided with a third groove (25), the second groove (24) and the third groove (25) are spaced along the first direction (X), and the silica gel sleeve (4) is further provided with a third convex edge (43), and the third convex edge (43) is in positioning cooperation with the third groove (25).

10. The electronic pen tip structure according to claim 1, characterized in that, The end of the accommodating hole (10) is further provided with a reamed section (13), the silica gel sleeve (4) is clamped between the hole wall of the reamed section (13) and the positioning structure (2), and an electrically conductive cloth (5) is coated on the silica gel sleeve (4).

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