CN116578196A

CN116578196A - Waterproof touch pen

Info

Publication number: CN116578196A
Application number: CN202310626487.3A
Authority: CN
Inventors: 沈成成
Original assignee: Luxshare Electronic Technology Kunshan Ltd
Current assignee: Luxshare Electronic Technology Kunshan Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-08-11

Abstract

The invention relates to the technical field of touch pens, and particularly discloses a waterproof touch pen, wherein a pen body comprises a pen-shaped sleeve body and a first channel extending along the axial direction of the pen-shaped sleeve body, the first channel comprises an internal channel communicated with the first channel and a mounting hole communicated with the internal channel, and one end of the mounting hole faces towards the head of a pen core; the first elastomer is sealed to be set up in the mounting hole, and the second passageway of first elastomer open in both ends is formed, and the second passageway communicates with the internal passage in order to hold the refill, and the periphery of refill is located to first elastomer cover. The pen-shaped sleeve body is provided with a key hole communicated with the first channel, and the second elastic body is used for connecting the key in a sealing manner to the pen-shaped sleeve body. The waterproof performance between the pen body and the pen refill is achieved through the arrangement, the assembly efficiency is improved, and the service life of the waterproof touch pen is prolonged.

Description

Waterproof touch pen

Technical Field

The invention relates to the technical field of touch pens, in particular to a waterproof touch pen.

Background

The electronic components are provided inside the stylus, and thus the stylus needs to have an overall waterproof performance. Considering that both the pen core and the key can move relatively with the pen holder of the touch control pen, the waterproof of the joint of the pen core and the pen holder and the joint of the key and the pen holder is the most critical.

In order to solve the waterproof problem of refill department, mostly set up waterproof piece between refill and pen-holder, for example in the waterproof touch-control pen of certificate number TWI525483B, set up waterproof ring cover between refill department and the circuit subassembly of pen-holder, waterproof ring cover needs to pass whole pen-holder, and this waterproof ring's installation effectiveness is low, and needs additionally to set up the elastic component and realize the reduction of refill, and the structure is complicated, and the installation is loaded down with trivial details, has reduced packaging efficiency when having improved the cost.

Therefore, it is necessary to study a waterproof stylus pen to improve the assembly efficiency of the pen core on the basis of having waterproof performance.

Disclosure of Invention

The invention aims to provide a waterproof touch pen, which improves the assembly efficiency of a pen core on the basis of realizing waterproof performance.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the present invention provides a waterproof stylus, comprising:

the pen comprises a pen body and a first channel extending along the axial direction of the pen body, wherein the first channel comprises an inner channel and a mounting hole communicated with the inner channel, a key hole communicated with the first channel is formed in the side wall of the pen body, and a switch is arranged in the first channel;

the first elastic body is arranged in the mounting hole in a sealing mode, a second channel with two open ends is formed in the first elastic body, and the second channel is communicated with the inner channel;

the pencil lead is arranged in the second channel and the internal channel in a penetrating way, and the first elastic body is sleeved on the periphery of the pencil lead;

the key, one end of the said key passes the said key hole and is abutted with said switch;

and the second elastic body is used for connecting the key to the pen-shaped sleeve body in a sealing way.

As an alternative technical scheme of waterproof touch-control pen, the inner wall of the pen-shaped sleeve body inwards extends to form a spacing rib, just spacing rib have with the spacing hole of first passageway intercommunication, spacing hole with the axle body cooperation of refill is connected.

As an alternative technical scheme of the waterproof touch pen, the limit rib comprises a first side facing the mounting hole;

the first elastomer includes a connecting portion connected to the first side.

As an alternative technical scheme of the waterproof touch pen, the limit rib extends to form a waterproof groove along the axial direction of the pen body along the direction away from the mounting hole at the first side;

the first elastic body comprises a connecting part, and the connecting part is arranged in the waterproof groove.

As an alternative technical scheme of the waterproof touch pen, the inner wall of the mounting hole extends inwards to form a mounting part, and the mounting part and the inner wall of the mounting hole form a mounting step;

the first elastic body includes a connection portion connected to the mounting step.

As an alternative solution of the waterproof stylus, the first elastomer includes:

a connection portion;

an elastic part, one end of which is connected with the connecting part, and a gap is arranged between the elastic part and the inner wall of the first channel;

and a fixing portion connected to the other end of the elastic portion, the fixing portion being connected to at least a portion of the cartridge.

As an alternative solution of the waterproof stylus, the elastic portion includes the second channel, the fixing portion includes a first end facing the second channel, an end of the first end extends into the second channel along an axial direction of the pen-shaped sleeve body to form a sleeve joint portion, and the sleeve joint portion and the elastic portion form a stop groove.

As an alternative technical scheme of the waterproof touch pen, the second elastic body comprises an elastic connecting part, the elastic connecting part is provided with a through hole, the second elastic body also comprises a sealing connecting part wound on the periphery of the through hole, and the elastic connecting part penetrates through the key hole and is in sealing connection with the side wall of the pen-shaped sleeve body; one end of the key passes through the through hole and is abutted with the switch; the sealing connection part is in sealing connection with the key.

As an alternative technical scheme of the waterproof touch pen, the key comprises a pressing part and a connecting rod part arranged at one end of the pressing part, the sealing connection part is in sealing connection with the pressing part, and the connecting rod part penetrates through the through hole and is in butt joint with the switch.

As an alternative technical scheme of waterproof touch-control pen, the one side that presses the portion to be equipped with connecting rod portion is equipped with the mounting groove, the second elastomer sealed connecting portion is including protruding locating the mount pad of elastic connection portion, the mount pad cartridge in the mounting groove.

The beneficial effects of the invention are as follows:

the invention provides a waterproof touch pen, which is characterized in that a first elastic body is arranged between a pen body and a pen core, wherein the first elastic body is connected between a pen-shaped sleeve body of the pen body and the pen core in a sealing manner, so that the waterproof performance between the pen body and the pen core is realized, the pen core is stopped at an initial position by means of the elastic performance of the first elastic body, the structure of independently arranging an elastic piece is avoided, the integral structure is simplified, and the assembly efficiency is improved; in addition, through second elastomer sealing connection between button and the shape cover body, realized the waterproof performance between button and the shape cover body, avoid water to get into the shape cover body through button department, improved waterproof stylus's life.

Drawings

FIG. 1 is a schematic diagram of a waterproof stylus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a waterproof stylus according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a waterproof stylus of an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a pen-shaped sleeve according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a first elastomer according to an embodiment of the present invention;

fig. 6 is a partial sectional view of a cartridge according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of a waterproof stylus pen in an embodiment of the invention, wherein the pen-shaped sleeve body is provided with a mounting step;

FIG. 8 is a schematic view of the structure of a waterproof stylus pen in an embodiment of the invention, wherein the pen-shaped sleeve body is provided with a mounting step, and the first elastic body is hidden;

FIG. 9 is an enlarged view of FIG. 2 at A;

FIG. 10 is a schematic diagram showing an exploded structure of a switch, a second elastic body and a key according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of a key according to an embodiment of the present invention;

fig. 12 is a schematic view showing a partial structure of a pen-shaped sleeve body at a key hole according to an embodiment of the present invention.

In the figure:

100. a switch;

1. a pen body; 10. a pen-shaped sleeve body; 11. a first channel; 111. a mounting hole; 112. an internal passage; 113. a mounting part; 12. a limit rib; 120. a limiting hole; 121. a first side; 122. a water-repellent tank; 13. mounting steps; 131. a step plane; 132. a step vertical surface; 14. a key hole; 15. a limit protrusion; 151. a stop surface; 152. a bonding surface; 153. fitting grooves;

2. a first elastomer; 20. a second channel; 21. an elastic portion; 22. a connection portion; 23. a fixing portion; 24. an annular connecting part; 25. a stop groove;

3. a pen core; 31. a mounting groove;

4. a key; 41. a pressing part; 42. a link portion; 43. a mounting groove; 431. installing an inner side wall; 432. installing an outer side wall;

5. a second elastomer; 51. an elastic connection part; 52. a through hole; 53. sealing the connecting part; 54. fitting the bulge;

6. a guard; 61. a contact portion; 62. and a tail part.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

As shown in fig. 1-12, the present embodiment provides a waterproof structure of a waterproof stylus, which includes a pen body 1, a first elastic body 2, a pen core 3, a key 4 and a second elastic body 5, wherein the pen body 1 includes a pen-shaped sleeve body 10 and a first channel 11 extending along an axial direction of the pen-shaped sleeve body 10, a switch 100 and an electronic component are disposed in the first channel 11, the switch 100 is used for triggering the electronic component, and the electronic component is used for controlling functions of waterproof drawing, erasing and the like of the waterproof stylus. The first passage 11 includes an inner passage 112 and a mounting hole 111 communicating with the inner passage 112, one end of the mounting hole 111 being directed toward the head of the cartridge 3; the first elastic body 2 is arranged in the mounting hole 111 in a sealing way, the first elastic body 2 forms a second channel 20 with two open ends, the second channel 20 is communicated with the inner channel 112 to accommodate the pen core 3, and the first elastic body 2 is sleeved on the periphery of the pen core 3. The pen-shaped sleeve 10 is provided with a key hole 14 communicated with the first channel 11, the key 4 passes through the key hole 14 and abuts against the switch 100, and the second elastic body 5 is used for connecting the key 4 to the pen-shaped sleeve 10 in a sealing manner.

Wherein the cartridge 3 slides in the extending direction of the first passage 11 between an initial position and a final position, the first elastic body 2 serves to stop the cartridge 3 at the initial position. In this embodiment, the first elastic body 2 has a cylindrical structure.

The first elastic body 2 is connected between the pen-shaped sleeve body 10 of the pen body 1 and the pen core 3 in a sealing way, so that the waterproof performance between the pen body 1 and the pen core 3 is realized, the pen core 3 is stopped at the initial position by the elastic performance of the first elastic body 2, the structure of independently arranging an elastic piece is avoided, the integral structure is simplified, and the pen core 3 does not need to pass through the whole first channel 11 when being installed, so that the assembly efficiency is improved; through second elastomer 5 sealing connection between button 4 and the shape cover body 10, realized the waterproof performance between button 4 and the body 1, avoid water to get into the shape cover body 10 inside through button 4 department, improved waterproof stylus's life.

The inner wall of the pen-shaped sleeve body 10 extends inwards to form a limiting rib 12, the limiting rib 12 forms a limiting hole 120 communicated with the first channel 11, and the limiting hole 120 is connected with the shaft body of the pen core 3 in a matched mode. That is, a portion of the inner wall of the pen-shaped casing 10 extends into the first passage 11 in the radial direction of the pen body 1 to form the stopper rib 12 having the stopper hole 120, and one end (corresponding to the upper end of fig. 3) of the cartridge 3 is penetrated out of the stopper hole 120 and extends into the inner passage 112, so that the cartridge 3 is prevented from shaking relative to the pen-shaped casing 10 in the radial direction of the pen-shaped casing 10 during writing, and the stability of the expansion and contraction of the cartridge 3 is improved.

The stopper rib 12 includes a first side 121 facing the mounting hole 111, and the first elastic body 2 includes a connection portion 22, and the connection portion 22 is connected to the first side 121. In this embodiment, one end of the connecting portion 22 may be connected to the first side 121, for example, by bonding. In another embodiment, the connection portion 22 may be disposed within the first channel 11, for example, by an interference fit, with an end of the connection portion 22 abutting the first side 121.

The limiting rib 12 extends along the axial direction of the pen body 1 along the first side 121 towards the direction away from the mounting hole 111 to form a waterproof groove 122; the first elastic body 2 includes a connection portion 22, and the connection portion 22 is provided in the waterproof groove 122. The provision of the waterproof groove 122 enlarges the contact area between the connection portion 22 and the pen body 1, thereby improving the firmness of connection. In addition, as shown in fig. 4, the waterproof groove 122 and the stopper rib 12 are made to form a waterproof structure, so that the waterproof performance between the first elastic body 2 and the cartridge 3 can be further improved. The first elastic body 2 comprises a fixing part 23, and the fixing part 23 is sleeved on the pen core 3.

In the present embodiment, when the waterproof stylus pen is performing a writing operation, the fixing portion 23 has a tendency to approach the connecting portion 22, and the first elastic body 2 is subjected to a tensile force. Specifically, the first elastic body 2 has a bell mouth shape with a wider upper portion and a narrower lower portion, and as shown in fig. 3, the diameter of the first elastic body 2 on the side of the head portion (corresponding to the upper side in fig. 3) away from the cartridge 3 is larger than the diameter of the second elastic body on the other side (corresponding to the lower side in fig. 3) close to the cartridge 3. In other words, the fixing portion 23 is close to the first side 121. In this embodiment, when the head of the pen core 3 is subjected to a reaction force on the surface of the touch screen, the first elastic body 2 is subjected to a pressure.

With respect to the mounting of the first elastic body 2, it is also possible to use other means, such as reversing the direction of the first elastic body 2, so that the manner in which the first elastic body 2 is stressed changes.

Specifically, as shown in fig. 7 and 8, in another embodiment, the inner wall of the mounting hole 111 extends inward along the radial direction of the pen body 1 to form a mounting portion 113, and the mounting portion 113 and the inner wall of the mounting hole 111 form a mounting step 13; the first elastic body 2 includes a connecting portion 22, and the connecting portion 22 is connected to the mounting step 13.

The mounting step 13 includes a step plane 131 and a step vertical surface 132, the step plane 131 is perpendicular to the step vertical surface 132, in this embodiment, one end of the connection portion 22 is adhered to the step plane 131, or the connection portion 22 is disposed in the step vertical surface 132 by interference fit, and one end of the connection portion 22 abuts against the step plane 131, or the connection portion 22 is interference fit in the step vertical surface 132, and one end of the connection portion 22 is adhered to the step plane 131. Wherein the step vertical surface 132 is a cylindrical structure.

The first elastic body 2 includes an elastic portion 21, a connecting portion 22, and a fixing portion 23, wherein one end of the elastic portion 21 is connected to the connecting portion 22 with a gap between the elastic portion 21 and an inner wall of the first passage 11; the fixing portion 23 is connected to the other end of the elastic portion 21, and the fixing portion 23 is connected to at least a portion of the cartridge 3. The above arrangement facilitates the connection of the first elastic body 2 and allows for a gap between the elastic portion 21 and the inner wall of the first channel 11 at all times, i.e. the elastic portion 21 has the space required for deformation at all times.

In the present embodiment, when the waterproof stylus pen is performing a writing operation, the fixing portion 23 has a tendency to be separated from the connecting portion 22, and the first elastic body 2 is subjected to a tensile force. Specifically, the elastic portion 21 has a horn shape with a narrow upper portion and a wide lower portion, and as shown in fig. 7, the diameter of the first elastic body 2 on the side of the head portion (corresponding to the upper side in fig. 7) away from the cartridge 3 is smaller than the diameter of the other side (corresponding to the lower side in fig. 7) close to the cartridge 3. In other words, the fixing portion 23 is far from the first side 121, and in this embodiment, the head of the pen core 3 is subjected to a reaction force of the touch screen surface in use, and thus the first elastic body 2 is subjected to a tensile force.

The elastic portion 21 includes a second channel 20, the fixing portion 23 includes a first end facing the second channel 20, and an end of the first end extends into the second channel 20 along an axial direction of the pen-shaped sleeve body 10 to form a socket, and the socket and the elastic portion 21 form a stop groove 25. The opening of the stopper groove 25 is directed toward the connecting portion 22. Specifically, the outer periphery of the fixing portion 23 is provided with an annular connecting portion 24, the annular connecting portion 24 being located at a middle position of the fixing portion 23 with a gap between the fixing portion 23 and the elastic portion 21. The gap and the annular connecting portion 24 form a stop groove 25. When the whole waterproof stylus is inverted, i.e. the nib is upward, the water flowing in from the nib can enter the stop groove 25 to avoid continuous flow, and when the head of the waterproof stylus is downward, the water can flow out to avoid the water entering the inside of the stylus through the gap between the fixing portion 23 and the cartridge 3.

In any embodiment, the material of the first elastomer 2 may be set as follows. Regarding the material of the first elastic body 2, in the first embodiment of the present embodiment, the first elastic body 2 is made of silica gel.

In the second implementation of this embodiment, the connection portion 22 is hard silica gel, and the elastic portion 21 is soft silica gel. The connection portion 22 and the elastic portion 21 are integrally formed by a two-shot molding technique.

In the third implementation of this embodiment, the fixing portion 23 is hard silica gel, and the elastic portion 21 is soft silica gel. The fixing portion 23 and the elastic portion 21 are integrally formed by a two-shot molding technique.

In the fourth implementation manner of this embodiment, the fixing portion 23 and the connecting portion 22 are both made of hard silica gel, and the elastic portion 21 is made of soft silica gel. The connection portion 22, the fixing portion 23, and the elastic portion 21 are integrally formed by a two-shot molding technique. Wherein, soft silica gel has better elasticity, and soft silica gel hardness range can be 30 degrees to 50 degrees. The hardness of the hard silica gel may range from 50 degrees to 70 degrees.

The cartridge 3 has a mounting groove 31 fitted with the fixing portion 23 of the first elastic body 2, and the fixing portion 23 is disposed in the mounting groove 31. Specifically, the fixing portion 23 is fitted over the cartridge 3, and both ends of the fixing portion 23 abut against both side walls of the mounting groove 31, respectively. This setting makes first elastomer 2 and refill 3 at refill 3's extending direction relatively fixed, prevents to take place relative slip between refill 3 and the first elastomer 2, has improved the fastness of connection between the two.

The waterproof touch pen further comprises a protective piece 6, the protective piece 6 is sleeved on the head of the pen core 3, and the protective piece 6, the pen core 3 and the first elastic body 2 are of an integrated structure.

The guard 6 is for contacting the touch screen. The guard 6 includes a contact portion 61 and a tail portion 62; the cross section of the contact portion 61 includes an arc shape and an isosceles trapezoid shape, and the cross section of the tail portion 62 includes a rectangle shape.

The distance L between the surface of the contact portion 61, to which the tail portion 62 is connected, and the pen body 1 is 0.2mm-1mm.

In the embodiment in which the first elastic body 2 is subjected to pressure when the cartridge 3 is retracted, the tail 62 is partially located in the mounting hole 111.

In the embodiment in which the first elastic body 2 is subjected to a tensile force when the cartridge 3 is retracted, the tail 62 is located outside the mounting hole 111. In this embodiment, tail 62 can abut against connecting portion 22 when cartridge 3 is moved to the end position. Since the connection portion 22 is made of silicone, the connection portion 22 also serves as a buffer. In this embodiment, the hardness of the connection portion 22 may be 40 degrees to 50 degrees.

A chamfer is provided between the contact portion 61 and the tail portion 62. To facilitate production.

Regarding the material of the protection member 6, in the first embodiment of the present invention, the material of the protection member 6 is plastic. The pen refill 3 is made of metal. The guard 6 may be integrally formed with the cartridge 3. The cartridge 3 may be stainless steel.

In the second embodiment of the present embodiment, the protection member 6 and the pen core 3 are made of plastic, and are integrally formed.

Regarding the dual injection molding technology, the integrated molding process of soft and hard silica gel can be realized, and specific implementation methods are well known to those skilled in the art and are not described herein.

Referring to fig. 9 and 10, the second elastic body 5 includes an elastic connection part 51, the elastic connection part 51 is provided with a through hole 52, the second elastic body 5 further includes a sealing connection part 53 wound around the periphery of the through hole 52, and the elastic connection part 51 is penetrated through the key hole 14 and is connected with the side wall of the pen-shaped casing 10 in a sealing manner; one end of the key 4 passes through the through hole 52 and is abutted with the switch 100; the seal connection 53 is in seal connection with the key 4.

The waterproof function of the waterproof touch pen at the key 4 is achieved through the arrangement. One end of the key 4 passes through the through hole 52 and is abutted against the switch 100, so that the condition that an elastic component exists between the key 4 and the switch 100 is avoided, and the problem that energy is wasted in the triggering process of the switch 100 due to energy storage of the elastic component between the key 4 and the switch 100 is solved; in addition, because the setting of button 4 and the direct butt of switch 100 for the degree of depth that button 4's the depression depth and switch 100 trigger needs is the same, has improved operating efficiency, and the operation sense of touch is accurate, and user's use experience is felt better.

In this embodiment, the pen-shaped casing 10 is provided with a stop portion for stopping the key 4 pressed to the limit position. By the arrangement of the stop portion, the excessive depth of pressing of the key 4 is avoided, thereby protecting the switch 100 in the internal channel 112.

Specifically, the stop portion includes a stop protrusion 15 formed on an inner sidewall of the key hole 14, the stop protrusion 15 includes a stop surface 151, and the key 4 located at the limit position abuts against the stop surface 151. In other embodiments, the stop portion may be disposed inside the internal channel 112, so long as the key 4 located at the limit position can be stopped, and the installation of the internal electronic component is not affected.

In this embodiment, the limiting protrusion 15 is annular, the limiting protrusion 15 includes an attaching surface 152, the attaching surface 152 is perpendicular to the stop surface 151, the elastic connection portion 51 is plate-shaped, and an outer peripheral surface of the elastic connection portion 51 is in sealing connection with the attaching surface 152. Wherein the outer peripheral surface of the elastic connection portion 51 is bonded to the bonding surface 152. Specifically, the second elastic body 5 is adhered to the bonding surface 152 after the bonding surface 152 is glued. In other embodiments of the present invention, the elastic connection portion 51 may be integrally formed with the limit projection 15. The limiting protrusion 15 has the functions of limiting and connecting, is compact in structure, is beneficial to reducing the equipment size and saves the cost.

In order to increase the contact area between the pen-shaped sleeve body 10 and the second elastic body 5, in this embodiment, the attaching surface 152 is provided with an attaching groove 153, and the outer peripheral surface of the elastic connecting portion 51 is formed with an attaching protrusion 54, and the attaching protrusion 54 is fitted in the attaching groove 153.

In order to further increase the contact area between the pen-shaped sleeve body 10 and the second elastic body 5, in this embodiment, the number of the attaching grooves 153 is several, the attaching surfaces 152 are arranged at intervals, the number of the attaching protrusions 54 is the same as the number of the attaching grooves 153, and the attaching protrusions 54 are arranged in one-to-one correspondence with the attaching grooves 153.

In this embodiment, the attaching groove 153 may penetrate through the upper and lower end surfaces of the limiting protrusion 15 along the radial direction of the pen-shaped sleeve body 10. I.e., the inner side wall of the key hole 14 is wavy, and the penetrating type fitting groove 153 is convenient for processing.

In other embodiments, the fitting recess 153 may be hemispherical, and the fitting protrusion 54 provided on the outer peripheral surface of the elastic connection portion 51 may be hemispherical. The arrangement increases the contact area between the pen-shaped sleeve body 10 and the second elastic body 5, and improves the connection strength between the pen-shaped sleeve body and the second elastic body; on the other hand, the second elastic body 5 is limited in the axial direction of the key hole 14, so that the second elastic body 5 is prevented from being separated from the pen-shaped sleeve body 10 when being pressed by the key 4.

In this embodiment, the limiting projection 15 is located at an end of the inner sidewall of the key hole 14 near the inner channel 112. The above-mentioned position setting makes second elastomer 5 and button 4 can wholly be close to the axis position of pen-shaped cover body 10 to make button 4 be located the size as little as possible outside the button hole 14, and then reduced waterproof stylus at radial overall dimension, be favorable to promoting the use and feel, and be convenient for accomodate.

With respect to the structure of the key 4, in the present embodiment, the key 4 includes a pressing portion 41 and a link portion 42 provided at one end of the pressing portion 41, the seal connection portion 53 is connected to the pressing portion 41 in a seal manner, and the link portion 42 passes through the through hole 52 and abuts against the switch 100. The outer diameter of the pressing part 41 is larger than that of the connecting rod part 42, so that the cost of the key 4 after the structure optimization can be reduced; on the other hand, the size of the through hole 52 can be reduced, so that the size of the elastic connection portion 51 is reduced as much as possible and the cost of the second elastic body 5 is reduced on the premise of ensuring that the elastic force of the elastic connection portion 51 is sufficient.

In this embodiment, the side of the pressing portion 41 provided with the link portion 42 is provided with the mounting groove 43, and the seal connection portion 53 of the second elastic body 5 includes a mounting table protruding from the elastic connection portion 51, and the mounting table is inserted into the mounting groove 43. The mount may be made of silica gel, and by means of the above mount, when the key 4 is pressed, the mount may perform buffering in a certain range, so that the deformation of the elastic connection portion 51 between the sealing connection portion 53 and the outer peripheral surface of the second elastic body 5 is reduced, so that the stress at the sealing connection portion 53 and the stress at the outer peripheral surface of the second elastic body 5 are reduced, and further the possibility of separation between the sealing connection portion 53 and the key 4 is reduced, and the possibility of separation between the outer peripheral surface of the second elastic body 5 and the pen-shaped sleeve body 10 is also reduced.

By means of the structure of the mounting groove 43 and the mounting table, position guidance is provided for assembling the second elastic body 5 and the key 4, and assembling efficiency is improved.

In this embodiment, the mounting groove 43 is annular, and the mounting base is annular, and the bottom of the mounting groove 43 is bonded to the end of the mounting base. Specifically, glue is applied to the mounting groove 43, and then the mounting table is fitted into the mounting groove 43. The bonding mode enables the second elastic body 5 and the key 4 to achieve a better sealing effect, and the bonding between the bottom of the mounting groove 43 and the end of the mounting table avoids the glue from being stuck on the connecting rod part 42, even the glue flows into the inner channel 112 through the connecting rod part 42.

Since the mounting groove 43 is provided around the outer periphery of the link portion 42, in the present embodiment, the mounting groove 43 includes a mounting inner side wall 431 and a mounting outer side wall 432 that are concentrically provided, and the height of the mounting inner side wall 431 is greater than the height of the mounting outer side wall 432. Wherein the height difference between the mounting inner side wall 431 and the mounting outer side wall 432 is H. Further, by the above arrangement, when dispensing, the glue is prevented from flowing to the inside of the mounting groove 43 and adhering to the link portion 42, thereby causing adhesion between the link portion 42 and the side wall of the through hole 52, and even the glue flows into the inside of the inner passage 112 through the link portion 42.

In other embodiments, the mounting table may be a columnar structure. The installation table can be provided in plurality, the installation tables are uniformly distributed around the circumference of the through hole 52, and the installation grooves 43 and the installation tables are arranged in one-to-one correspondence.

In this embodiment, the groove bottom of the installation groove 43 is provided with an annular groove. The annular groove is used to receive glue to avoid squeezing the glue out of the link portion 42 when the outer side wall of the mounting table and the mounting inner side wall 431 of the mounting groove 43 are in contact.

In other embodiments, a plurality of glue grooves may be recessed in the mounting inner sidewall 431.

In order to realize multiple functions, in this embodiment, at least two keys 4 are provided, and the number of key holes 14 is the same as the number of keys 4 and is set in a one-to-one correspondence manner. One of the keys 4 is used for triggering a painting function and the other key 4 is used for triggering an eraser function. In other embodiments, one of the plurality of keys 4 may also correspond to the on/off of the entire waterproof stylus. In addition, the number of the keys 4 can be three, four or even ten, which correspond to different functions.

In this embodiment, the shape of the key hole 14 is long, and the length direction of the key hole 14 is consistent with the length direction of the pen-shaped sleeve 10, and the shape of the second elastic body 5 is adapted to the shape of the key hole 14. This shape arrangement can increase the contact area between the second elastic body 5 and the pen-shaped casing 10 as much as possible, improving the connection strength.

The electronic component comprises a wireless charging coil and a battery, wherein the wireless charging coil is used for wirelessly charging the battery. The tail 62 of the periphery of the pen-shaped sleeve body 10 is provided with an LED lamp, so that the functions of starting up, charging and the like can be displayed. The pen-shaped casing 10 is internally provided with a magnet for attracting a notebook and a charging device. The rack is disposed within the interior channel 112 and the electronic components are mounted on the rack arrangement. The pen-shaped casing 10 is provided at the rear end thereof with a tail cap for blocking the rear end opening of the internal passage 112. A buffer cushion is arranged between the tail cover and the bracket. The copper foil is wrapped outside the bracket, so that the electronic component is prevented from being radiated from the outside.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. Waterproof stylus, its characterized in that includes:

the pen comprises a pen body (1), wherein the pen body (1) comprises a pen-shaped sleeve body (10) and a first channel (11) extending along the axial direction of the pen-shaped sleeve body (10), the first channel (11) comprises an inner channel (112) and a mounting hole (111) communicated with the inner channel (112), a key hole (14) communicated with the first channel (11) is formed in the side wall of the pen-shaped sleeve body (10), and a switch (100) is arranged in the first channel (11);

a first elastic body (2), wherein the first elastic body (2) is arranged in the mounting hole (111) in a sealing way, the first elastic body (2) forms a second channel (20) with two open ends, and the second channel (20) is communicated with the inner channel (112);

the pen refill (3) is penetrated in the second channel (20) and the inner channel (112), and the first elastic body (2) is sleeved on the periphery of the pen refill (3);

a key (4), wherein one end of the key (4) passes through the key hole (14) and is abutted with the switch (100);

and the second elastic body (5) is used for connecting the key (4) to the pen-shaped sleeve body (10) in a sealing way.

2. The waterproof stylus according to claim 1, wherein the inner wall of the pen-shaped sleeve body (10) extends inwards to form a limiting rib (12), the limiting rib (12) is provided with a limiting hole (120) communicated with the first channel (11), and the limiting hole (120) is connected with the shaft body of the pen core (3) in a matching mode.

3. The waterproof stylus according to claim 2, characterized in that the limit rib (12) comprises a first side (121) facing the mounting hole (111);

the first elastic body (2) comprises a connecting portion (22), the connecting portion (22) being connected to the first side (121).

4. A waterproof stylus according to claim 3, characterized in that the limit rib (12) extends along the axial direction of the stylus body (1) along the first side (121) towards a direction away from the mounting hole (111) to form a waterproof groove (122);

the first elastic body (2) comprises a connecting part (22), and the connecting part (22) is arranged in the waterproof groove (122).

5. The waterproof stylus according to claim 1, wherein an inner wall of the mounting hole (111) extends inward to form a mounting portion (113), the mounting portion (113) and the inner wall of the mounting hole (111) forming a mounting step (13);

the first elastic body (2) includes a connecting portion (22), and the connecting portion (22) is connected to the mounting step (13).

6. The waterproof stylus according to claim 1, wherein the first elastomer (2) comprises:

a connection portion (22);

an elastic portion (21), one end of the elastic portion (21) is connected with the connecting portion (22), and a gap is formed between the elastic portion (21) and the inner wall of the first channel (11);

-a fixing portion (23), said fixing portion (23) being connected to the other end of said elastic portion (21), said fixing portion (23) being connected to at least a portion of said cartridge (3).

7. The waterproof stylus according to claim 6, wherein the elastic portion (21) comprises the second channel (20), the fixing portion (23) comprises a first end facing the second channel (20), and an end of the first end extends into the second channel (20) along an axial direction of the pen-shaped housing (10) to form a socket, and the socket and the elastic portion (21) form a stop groove (25).

8. The waterproof stylus according to any one of claims 1-7, wherein the second elastic body (5) comprises an elastic connection part (51), the elastic connection part (51) is provided with a through hole (52), the second elastic body (5) further comprises a sealing connection part (53) wound on the periphery of the through hole (52), and the elastic connection part (51) penetrates through the key hole (14) and is in sealing connection with the side wall of the pen-shaped sleeve body (10); one end of the key (4) passes through the through hole (52) and is abutted with the switch (100); the sealing connection part (53) is in sealing connection with the key (4).

9. The waterproof stylus according to claim 8, wherein the key (4) includes a pressing portion (41) and a link portion (42) provided at one end of the pressing portion (41), the seal connecting portion (53) is connected with the pressing portion (41) in a seal manner, and the link portion (42) passes through the through hole (52) and abuts against the switch (100).

10. The waterproof stylus according to claim 9, wherein a mounting groove (43) is formed in a side of the pressing portion (41) where the link portion (42) is formed, the sealing connection portion (53) of the second elastic body (5) includes a mounting table protruding from the elastic connection portion (51), and the mounting table is inserted into the mounting groove (43).