Electronic pen

Abstract

The utility model relates to the technical field of handwriting pens, and discloses an electronic pen, which comprises a pen holder, a pen cap and a pen cap, the refill is assembled in the assembling cavity, the refill is provided with an air channel, and the air channel is provided with a first port and a second port which are communicated with each other; the elastic body is assembled on one side of the first port of the pen refill, an air cavity communicated with the first port is formed between the elastic body and the pen refill, and the elastic body is matched with the pen refill in a sealing mode to seal the air cavity; and the sealing element is assembled at the second port. According to the electronic pen, the air cavity is formed between the refill and the elastic body, the air channel in the refill is communicated with the air cavity through the first port, when the elasticity of the pen point of the electronic pen needs to be adjusted, the size and the pressure intensity of the air cavity can be adjusted by inflating or deflating the air cavity through the second port, and therefore the elasticity of the pen point is changed; stable pressure in the air cavity is guaranteed, and the hand feeling and efficiency of the electronic pen during working are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to handwriting pen technical field, especially a kind of electronic pen. BACKGROUND

[0002] Electronic pen is the device that can write, mark on electronic whiteboard, input-output device, touch screen and other devices, with the wide application of capacitive touch screen in electronic product, electronic stylus is used more and more frequently in life.

[0003] Generally traditional stylus is composed of pen barrel and nib, nib is equipped with stylus tip made of conductive plastic or rubber, stylus tip is usually hemispherical structure, nib part is embedded in pen barrel and pen barrel is electrically connected between nib. When using, stylus tip of stylus is contacted with touch panel and stylus tip is pressed to a certain degree, touch screen will detect the change of capacitance at stylus tip, and operation is realized.

[0004] The elasticity of stylus tip affects the operation sensitivity of stylus, when stylus tip is deformed and cannot contact correctly, operation error will occur, and after long time use, the elasticity of stylus tip decreases, which will also affect hand feeling and work efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of electronic pen to solve the problem that electronic stylus in prior art is affected after the elasticity of nib decreases.

[0006] In order to realize the above-mentioned purpose, the utility model provides a kind of electronic pen, comprising:

[0007] Pen barrel, the pen barrel also has assembly cavity;

[0008] Pen core, the pen core is assembled in the assembly cavity, the pen core has air passage, the air passage has first port and second port communicated with each other;

[0009] Elastomer, the elastomer is assembled in one side of the first port of the pen core, the elastomer and the pen core form air cavity communicated with the first port, the elastomer and the pen core are sealed to seal the air cavity;

[0010] Sealing element, the sealing element is assembled in the second port.

[0011] Preferably, it further includes stylus tip, the stylus tip includes connecting part and pressure contact part, the connecting part connects the pen core with the pen barrel, and the pressure contact part compresses and fixes the elastomer.

[0012] Preferably, the crimping part comprises a crimp ring and a boss, the boss is arranged at one end of the crimp ring away from the connecting part, the boss is located at the side of the crimp ring close to the refill, and the boss is pressed against the elastic body.

[0013] Preferably, the boss is a ring-shaped closed structure extending around the refill.

[0014] Preferably, the refill has a ball head protruding towards the pen head, the elastic body covers the ball head, and the ball head is arranged opposite to the boss.

[0015] Preferably, the refill has an assembly groove, the elastic body has a flange extending towards the refill, and the flange is embedded in the assembly groove.

[0016] Preferably, the connecting part comprises a cylindrical segment and a tapered segment, the tapered segment is arranged at the side of the tapered segment away from the refill, the pen barrel has a sleeve extending towards the pen head, the cylindrical segment is press-fitted between the sleeve and the refill, and the tapered segment is smoothly connected with the pen barrel.

[0017] Preferably, the refill has a shoulder, the shoulder forms a stepped surface towards the side of the elastic body, the cylindrical segment is assembled on the stepped surface, and the second port is arranged in the shoulder.

[0018] Preferably, the utility model further comprises a protective layer, and the protective layer covers the side of the elastic body away from the refill.

[0019] Preferably, the sealing element is an air-tight core.

[0020] Compared with the prior art, the utility model discloses an electronic pen, which has the beneficial effects that an air cavity is formed between the refill and the elastic body, an air passage in the refill is communicated with the air cavity through a first port, when it is necessary to adjust the elasticity of the pen head of the electronic pen, the size and pressure of the air cavity can be adjusted by inflating or deflating the air cavity through a second port, so that the elasticity of the pen head is changed, the sealing element can seal the second port, the pressure in the air cavity is stable, and the feeling and efficiency of the electronic pen during work are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the electronic pen of the utility model;

[0022] Figure 2 It is a sectional view of the electronic pen of the utility model; Figure 1

[0023] Figure 3 It is an enlarged schematic view of A of the electronic pen of the utility model; Figure 2

[0024] Figure 4 ​​This is a schematic structural diagram of the pen tip of the electronic pen of the present invention;

[0025] Figure 5 yes Figure 4 A cross-sectional view of the pen tip;

[0026] Figure 6 This is a schematic structural diagram of the refill of the electronic pen of the present invention;

[0027] Figure 7 It is a cross-sectional view of the elastic body of the electronic pen of the present invention.

[0028] In the figure, 1. pen body, 11. assembly cavity, 12. sleeve, 2. pen core, 21. air channel, 211. first port, 212. second port, 22. ball head, 23. assembly groove, 24. shoulder, 3. elastomer, 31. flange, 4. sealing member, 5. pen tip, 51. connecting part, 511. cylindrical section, 512. conical section, 52. crimping part, 521. pressure ring, 522. boss, 6. protective layer, 7. air cavity. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] A preferred embodiment of the electronic pen of the present utility model is as follows: Figures 1 to 7 As shown, the electronic pen includes a pen body 1, a refill 2, an elastomer 3 and a seal 4. The pen body 1 is the main structure of the electronic pen. The refill 2, the elastomer 3 and the seal 4 are assembled at one end of the pen body 1 in the length direction. The refill 2, the elastomer 3 and the seal 4 form the pen tip of the electronic pen. The specific shape and structure of the pen body 1 can be designed according to customer needs to meet customer personalized requirements.

[0031] The pen barrel 1 has an assembly cavity 11 extending along the length of the pen barrel 1. The refill 2 is fixedly assembled within the assembly cavity 11. The refill 2 can be made of metal or non-metal and can be customized according to customer needs. The refill 2 has an airway 21, which has a first port 211 and a second port 212 that communicate with each other. The first port 211 and the second port 212 are both located on the outer surface of the refill 2, with the first port 211 located at the end of the refill 2 away from the pen barrel 1, and the second port 212 located on the radial outer wall of the refill 2. The second port 212 is used to connect to an external structure such as an inflation fixture to inflate or deflate the airway 21 and adjust the gas pressure within the airway 21. The specific structure of the airway 21 can be designed as needed. In this embodiment, the airway 21 is an overall L-shaped structure.

[0032] The elastic body 3 is arranged on the side of the pen core 2 away from the pen barrel 1, and has a resilient property, which is used to change the capacitance of the contact position when the elastic body 3 is elastically deformed in contact with the touch screen. In this embodiment, the material of the elastic body 3 can be silicone or thermoplastic polyurethane rubber (TPU) or other elastic materials, which has a soft and sealable property.

[0033] The elastic body 3 and the pen core 2 form an air cavity 7, which is in communication with the first port 211, and the elastic body 3 is in sealing cooperation with the pen core 2 to seal the air cavity 7. When the elastic body 3 is deformed, the shape of the air cavity 7 changes, and the pressure in the air cavity 7 changes, so that the overall elasticity of the pen tip can be adjusted, and the feeling of writing can be improved. Since the air cavity 7 is in communication with the first port 211, when the pressure in the air channel 21 is changed by inflating or deflating through the second port 212, the pressure in the air cavity 7 changes synchronously. When the electronic pen is assembled, the operator can adjust the size and pressure of the air cavity 7 to adjust the elasticity of the pen tip and improve the feeling of writing.

[0034] The sealing member 4 is arranged on the second port 212, and is used to seal the second port 212 to keep the pressure in the air cavity 7 stable. Meanwhile, the sealing member 4 also has the function of connecting the second port 212 and the inflating clamp of the external device.

[0035] The electronic pen forms the air cavity 7 between the pen core 2 and the elastic body 3, and the air channel 21 in the pen core 2 is in communication with the air cavity 7 through the first port 211. When it is necessary to adjust the elasticity of the pen head 5 of the electronic pen, the size and pressure of the air cavity 7 can be adjusted by inflating or deflating the air cavity 7 through the second port 212, so that the elasticity of the pen head 5 is changed. The sealing member 4 can seal the second port 212 to keep the pressure in the air cavity 7 stable, and improve the feeling and efficiency of the electronic pen during operation.

[0036] Preferably, the electronic pen further comprises a pen head 5, which comprises a connecting portion 51 and a pressing portion 52. The connecting portion 51 connects the pen core 2 and the pen barrel 1, and the pressing portion 52 tightly fixes the elastic body 3.

[0037] The connecting portion 51 of the pen head 5 fixedly connects the pen core 2 and the pen barrel 1, and connects the pen core 2 and the pen barrel 1 as a whole. Meanwhile, the pressing portion 52 tightly fixes the elastic body 3, and the elastic body 3 is tightly fixed on the pen core 2, which simplifies the assembly form of the elastic body 3.

[0038] Preferably, the pressing portion 52 comprises a pressing ring 521 and a boss 522. The boss 522 is arranged at the end of the pressing ring 521 away from the connecting portion 51, and is located on the side of the pressing ring 521 close to the pen core 2. The boss 522 tightly presses the elastic body 3.

[0039] The compression ring 521 of the compression part 52 can compress the most part of the elastic body 3, and the boss 522 at one end of the compression ring 521 can strengthen and fix the local part of the elastic body 3, so as to avoid the elastic body 3 from being separated from the refill 2.

[0040] Preferably, the boss 522 is a ring-shaped closed structure extending around the refill 2.

[0041] The boss 522 is a ring-shaped closed structure compressing the elastic body 3 in the whole circumferential direction of the refill 2, which increases the sealing between the elastic body 3 and the refill 2, and ensures the stability of the pressure in the air cavity 7. In other embodiments, the boss 522 can also be an intermittent structure, and a plurality of bosses 522 are arranged in the circumferential direction of the refill 2.

[0042] Preferably, the refill 2 has a ball head 22 protruding towards the pen head 5, the elastic body 3 covers the ball head 22, and the ball head 22 is arranged opposite to the boss 522.

[0043] The ball head 22 is formed on the refill 2 and arranged opposite to the boss 522, and after the elastic body 3, the pen head 5 and the refill 2 are assembled, the boss 522 of the pen head 5 and the ball head 22 of the refill 2 clamp the elastic body 3 from two directions, which further increases the sealing between the elastic body 3 and the refill 2, and ensures the stability of the pressure in the air cavity 7.

[0044] Preferably, the refill 2 has an assembly groove 23, and the elastic body 3 has a flange 31 extending towards the refill 2, and the flange 31 is embedded in the assembly groove 23.

[0045] The flange 31 of the elastic body 3 is embedded in the assembly groove 23 of the refill 2, and after the compression ring 521 of the compression part 52 compresses the elastic body 3, the flange 31 can be fastened in the assembly groove 23, which increases the stability of the connection between the elastic body 3 and the refill 2.

[0046] Preferably, the connecting part 51 comprises a cylindrical segment 511 and a conical segment 512, the conical segment 512 is arranged on the side of the conical segment 512 away from the refill 2, the pen barrel 1 has a sleeve 12 extending towards the pen head 5, the cylindrical segment 511 is pressed between the sleeve 12 and the refill 2, and the conical segment 512 is smoothly connected with the pen barrel 1.

[0047] The sleeve 12 of the pen barrel 1 compresses and fixes the cylindrical segment 511 of the connecting part 51 on the outside of the refill 2, which realizes the connection and fixation among the pen barrel 1, the refill 2 and the pen head 5, and simplifies the connection structure; the conical segment 512 is smoothly connected with the pen barrel 1, which can increase the comfort of the electronic pen in use.

[0048] Preferably, the refill 2 has a shaft shoulder 24, a stepped surface is formed on the side of the shaft shoulder 24 facing the elastic body 3, the cylindrical segment 511 is assembled on the stepped surface, and the second port 212 is formed in the shaft shoulder 24.

[0049] The shaft shoulder 24 is arranged on the refill 2 and forms a stepped surface, the shaft shoulder 24 provides space for arrangement of the second port 212 and increases structural strength at the second port 212, facilitating assembly of the sealing member 4; the stepped surface assembles the cylindrical segment 511, the stepped surface provides assembly space for the cylindrical segment 511, and the shaft shoulder 24 limits the sleeve 12 when the sleeve 12 is pressed and assembled with the cylindrical segment 511, thereby limiting the maximum deformation of the cylindrical segment 511.

[0050] Preferably, the protective layer 6 is further included, and the protective layer 6 is wrapped on the elastomer 3 away from the refill 2.

[0051] The protective layer 6 is wrapped on the elastomer 3, which can prevent wear of the elastomer 3 in contact with the screen, prolong the service life of the elastomer 3, and enable the electronic pen to slide more smoothly when dragging the screen; in addition, the protective layer 6 is wrapped on the outer surface of the elastomer 3, which can reduce the outflow of gas from the material gap of the elastomer 3 and improve the sealing performance of the elastomer 3. In the embodiment, the protective layer 6 can be a silk thread or a nylon piece.

[0052] Preferably, the sealing member 4 is a gas-tight core.

[0053] When assembling the electronic pen, the operator can inflate the air passage 21 through the gas-tight core, adjust the pressure of the air cavity 7, and also seal the second port 212 after the pressure adjustment is completed, which is convenient to use.

[0054] In summary, the electronic pen provided by the embodiment of the present application forms an air cavity between the refill and the elastomer, and the air passage in the refill is communicated with the air cavity through the first port; when it is necessary to adjust the elasticity at the pen head of the electronic pen, the size and the pressure of the air cavity can be adjusted by inflating or deflating the air cavity through the second port, so as to change the elasticity at the pen head, and the sealing member can seal the second port, thereby ensuring the stability of the pressure in the air cavity and improving the hand feeling and efficiency of the electronic pen during operation.

[0055] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection range of the present application.

Claims

1. An electronic pen, characterized in that: include: A pen holder (1), the pen holder (1) further comprising an assembly cavity (11); A pen core (2), the pen core (2) being assembled in the assembly cavity (11), the pen core (2) having an air passage (21), the air passage (21) having a first port (211) and a second port (212) communicating with each other; an elastic body (3), the elastic body (3) being assembled on one side of the first port (211) of the pen core (2), an air cavity (7) communicating with the first port (211) being formed between the elastic body (3) and the pen core (2), the elastic body (3) and the pen core (2) being in sealing cooperation to seal the air cavity (7); A sealing member (4) is assembled on the second port (212).

2. The electronic pen according to claim 1, wherein: The pen tip (5) is also included. The pen tip (5) includes a connecting portion (51) and a crimping portion (52). The connecting portion (51) connects the pen core (2) and the pen holder (1), and the crimping portion (52) presses and fixes the elastic body (3).

3. The electronic pen according to claim 2, wherein: The crimping portion (52) comprises a pressing ring (521) and a boss (522), wherein the boss (522) is provided at one end of the pressing ring (521) away from the connecting portion (51), and the boss (522) is located on a side of the pressing ring (521) close to the pen core (2), and the boss (522) presses the elastic body (3).

4. The electronic pen according to claim 3, wherein: The boss (522) is an annular closed structure extending around the pen core (2).

5. The electronic pen according to claim 3, wherein: The pen core (2) has a ball head (22) protruding toward the pen tip (5), the elastic body (3) covers the ball head (22), and the ball head (22) is arranged opposite to the boss (522).

6. The electronic pen according to claim 2, wherein: The pen core (2) has an assembly groove (23), the elastic body (3) has a flange (31) extending toward the pen core (2), and the flange (31) is embedded in the assembly groove (23).

7. The electronic pen according to claim 2, wherein: The connecting portion (51) comprises a cylindrical section (511) and a tapered section (512), wherein the tapered section (512) is arranged on a side of the tapered section (512) away from the pen core (2), the pen holder (1) has a sleeve (12) extending toward the pen tip (5), the cylindrical section (511) is pressed between the sleeve (12) and the pen core (2), and the tapered section (512) and the pen holder (1) form a smooth transition.

8. The electronic pen according to claim 7, wherein: The pen core (2) has a shoulder (24), the shoulder (24) forms a stepped surface on the side facing the elastic body (3), the cylindrical section (511) is assembled on the stepped surface, and the second port (212) is opened on the shoulder (24).

9. The electronic pen according to any one of claims 1 to 8, characterized in that: It also includes a protective layer (6), which is coated on the side of the elastomer (3) facing away from the pen core (2).

10. The electronic pen according to any one of claims 1 to 8, characterized in that: The sealing member (4) is an airtight core.

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