Single-magnetic-ring eraser and electromagnetic pen

Abstract

The utility model relates to the field of computer input equipment, and provides a single magnetic ring eraser and an electromagnetic pen. The elastic structure is arranged in one end of the eraser bracket; one end of the large magnetic ring is inserted into the eraser bracket in a sliding manner, and is elastically propped against the elastic structure; the coil is arranged outside the eraser support in a sleeving mode and located on the periphery of the large magnetic ring. The eraser is connected with one end, far away from the elastic structure, of the large magnetic ring and is suitable for being in contact with a position to be erased; the utility model provides a single-magnetic-ring eraser which is sensitive in response and large in erasing range.

Description

TECHNICAL FIELD

[0001] The utility model relates to computer input device field especially relates to a single magnetic ring eraser and electromagnetic pen. BACKGROUND

[0002] With the advent of the digital age, handwriting pen technology plays an important role in the digital painting industry, and the electromagnetic pen is one of them. The back end of the electromagnetic pen is often provided with an eraser for erasing. Its working principle is also based on the principle of electromagnetic induction. When the eraser moves on the electromagnetic induction plate such as a hand drawing board, the coil inside the eraser will be affected by the magnetic field on the electromagnetic induction plate, thereby generating an electric current. This electric current will be converted into a digital signal, thereby realizing the digital input of the erasing signal.

[0003] In the prior art, the user adjusts the erasing range of the eraser basically depends on the single magnetic ring variable capacitance technology, that is, the pressure sensing is realized through the variable capacitor in the pen. When the writing force of the eraser is different, the capacitance value changes, thereby outputting different resonance frequencies to realize the detection of pressure sensing. The eraser changes the erasing range according to different pressure sensing, but the above-mentioned method depends on the capacitance value change of the variable capacitor. When the user adjusts the erasing range of the eraser, it will not be sensitive enough, and the range of adjustment will also have limitations. UTILITY MODEL CONTENT

[0004] The utility model solves the problem of how to provide a single magnetic ring eraser that is sensitive and has a large erasing range.

[0005] To solve the above problems, the utility model provides a single magnetic ring eraser, which comprises an eraser support.

[0006] An elastic structure is arranged in one end of the eraser support.

[0007] A large magnetic ring is slidably inserted into the eraser support at one end, and elastically abuts against the elastic structure.

[0008] A coil is sleeved outside the eraser support and located at the outer periphery of the large magnetic ring.

[0009] An eraser is connected to the end of the large magnetic ring away from the elastic structure and is adapted to contact the position to be erased.

[0010] Optionally, the elastic structure comprises a spring and a silica gel piece. One end of the spring is abutted and arranged in the eraser support, one end of the silica gel piece is inserted into the other end of the spring structure, and the other end of the silica gel piece abuts against the large magnetic ring.

[0011] Optionally, the silica gel piece comprises a springy silica gel and a silica gel clamp, the springy silica gel is inserted into the spring near one end of the spring, one end of the silica gel clamp is provided with a groove, the end of the springy silica gel away from the spring is accommodated in the groove, and the other end of the silica gel clamp is abutted against the large magnetic ring.

[0012] Optionally, one end of the rubber near the large magnetic ring is provided with a protruding part, the protruding part is inserted into the end of the large magnetic ring, a circumferential side of the protruding part is provided with an outer edge to form an annular groove with the protruding part, and the end of the eraser support is inserted into the annular groove.

[0013] Optionally, the end of the rubber away from the large magnetic ring is provided in a hemispherical structure, and one side of the hemispherical structure away from the large magnetic ring is provided with a flat surface to facilitate contact with the position to be erased.

[0014] Optionally, a PCBA board is further included, a partition plate is arranged in the eraser support, one end of the spring away from the silica gel piece is abutted against the partition plate, and the PCBA board is arranged on the other side of the partition plate.

[0015] Optionally, a connecting piece is further included, the eraser support is provided with the connecting piece near one end of the PCBA board, the connecting piece comprises a plug part embedded in the port of the eraser support and a hook part arranged outside the plug part, and the hook part is suitable for being engaged with the pen barrel of the electromagnetic pen.

[0016] Optionally, a channel is arranged in the eraser support to facilitate the wire to be arranged to electrically connect the PCBA board and the coil.

[0017] Optionally, one end of the eraser support is provided in a shrinkage mode to cover the coil to form a stepped surface to prevent the silica gel piece from falling off.

[0018] The utility model discloses a big magnetic ring is inserted in the eraser support, and through the elastic structure telescopic setting, the eraser is connected with the one end of big magnetic ring away from the elastic structure, thereby user can press the eraser through using different force, change the telescopic position of big magnetic ring, the coil is set in the eraser support outside, and is located the outer periphery of big magnetic ring, thereby the position of coil is invariable, through pressing adjustment big magnetic ring's position, make big magnetic ring and coil produce the magnetic field change and form frequency change, through setting up the elastic structure, when using the erasing function, the greater the force that user presses the eraser, the greater the frequency change that produces, thereby the greater pressure change, the eraser frame shows the erasing range is wider, and the limit is full screen erasing, above all, the utility model discloses through using the relative movement of big magnetic ring and coil to change the erasing range, with the pressure that user directly presses as the benchmark, is extremely sensitive, and it is convenient for user to use, for example, and the erasing range of eraser frame is relatively larger when using force, and the limit is full screen erasing.

[0019] The utility model discloses still provide a kind of electromagnetic pen, including the single magnetic ring eraser as described above and pen body, the pen body includes sequentially connected and arranged pen head, pen barrel and pen plug, the single magnetic ring eraser is connected with the other end of the pen plug by the hook, the pen barrel is provided with control circuit board, the control circuit board is electrically connected with the PCBA board, the outer periphery of the pen barrel is provided with a plurality of keys, each the key is electrically connected with the control circuit board, to facilitate user to control the single magnetic ring eraser operation by pressing each key.

[0020] Since the electromagnetic pen includes the single magnetic ring eraser, the electromagnetic pen at least has the beneficial effects of the single magnetic ring eraser, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is cross-sectional structure schematic view of single magnetic ring eraser in the utility model embodiment;

[0022] Figure 2 It is cross-sectional structure schematic view of electromagnetic pen in the utility model embodiment.

[0023] Mark shown in drawing:1-eraser support;2-PCBA board;3-spring;4-silica gel;5-silica gel clip;6-big magnetic ring;7-coil;8-eraser;81-protruding portion;82-outer edge;9-connector;10-wire;11-single magnetic ring eraser;12-pen head;13-pen barrel;131-control circuit board;132-key;14-pen plug. DETAILED DESCRIPTION

[0024] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0025] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are included in at least one embodiment or embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0028] The present application will be described in detail below with reference to the drawings.

[0029] In order to solve the above technical problems, in combination Figure 1 The present application provides a single magnetic ring eraser, which comprises: an eraser support 1;

[0030] Elastic structure, the elastic structure is arranged in one end of the eraser support 1;

[0031] Large magnetic ring 6, one end of the large magnetic ring 6 is slidably inserted into the eraser support 1, and is in elastic abutment with the elastic structure;

[0032] Coil 7, the coil 7 is sleeved on the outer of the eraser support 1, and is located at the outer periphery of the large magnetic ring 6;

[0033] Eraser 8, the eraser 8 is connected with one end of the large magnetic ring 6 away from the elastic structure, and is adapted to be in contact with the position to be erased.

[0034] It should be noted that the large magnetic ring 6 is slidingly inserted in the eraser support 1 and is arranged to be telescopic by the elastic structure, the eraser 8 is connected to the end of the large magnetic ring 6 away from the elastic structure, so that the user can change the telescopic position of the large magnetic ring 6 by pressing the eraser 8 with different forces, the coil 7 is sleeved outside the eraser support 1 and is located at the outer periphery of the large magnetic ring 6, so that the position of the coil 7 is fixed, by pressing to adjust the position of the large magnetic ring 6, the magnetic field change of the large magnetic ring 6 and the coil 7 is generated to form frequency change, by arranging the elastic structure, when the erasing function is used, the greater the force the user presses the eraser 8, the greater the frequency change generated, so that the pressure change is greater, the erasing range of the eraser 8 is wider, and the limit is full-screen erasing, in summary, the relative movement of the large magnetic ring 6 and the coil 7 is used to change the erasing range, the pressure directly pressed by the user is used as a reference, which is extremely sensitive, is convenient for the user to use, and the erasing range of the eraser 8 is relatively large, and the limit is full-screen erasing.

[0035] In an embodiment of the present application, in combination with Figure 1 As shown in the figure, the elastic structure comprises a spring 3 and a silica gel piece, one end of the spring 3 is abuttingly arranged in the eraser support 1, one end of the silica gel piece is inserted in the other end of the spring 3 structure, and the other end of the silica gel piece abuts against the large magnetic ring 6.

[0036] It should be noted that, optionally, the elastic structure comprises a spring 3 and a silica gel piece, the eraser support 1 is arranged as a tubular structure with two open ends, an accommodating cavity is formed in the inside by arranging a partition plate, one end of the spring 3 abuts on the partition plate to provide elastic force in the axial direction of the eraser support 1, one end of the silica gel piece is inserted in the end of the spring 3 structure away from the partition plate, the silica gel piece has flexibility, so as to be better connected with the spring 3, preventing the spring 3 from being separated during extension and contraction, the other end of the silica gel piece abuts against the large magnetic ring 6, so that the large magnetic ring 6 can move under the action of the spring 3, and the silica gel piece can also slow down the elastic force of the spring 3, so that the movement of the large magnetic ring 6 is more gentle, and the user can adjust the pressure feeling, so as to adjust the erasing range.

[0037] In an embodiment of the present application, in combination with Figure 1 As shown in the figure, the silica gel piece comprises a spring 3 and a silica gel piece, one end of the spring 3 is inserted in the spring 3, one end of the silica gel piece is provided with a groove, one end of the spring 3 is inserted in the groove, and the other end of the silica gel piece abuts against the large magnetic ring 6.

[0038] It should be noted that, optionally, the silica gel piece comprises elastic silica gel 4 and silica gel clamp 5, optionally, one end of the elastic silica gel 4 is arranged as a hemispherical shape close to the spring 3, so as to be stably inserted in the spring 3, one end of the silica gel clamp 5 is provided with a groove, one end of the elastic silica gel 4 away from the spring 3 is provided with a protrusion, so as to be accommodated in the groove and matched with the groove, the other end of the silica gel clamp 5 abuts against the large magnetic ring 6 to provide elastic force, and the arrangement of the elastic silica gel 4 and the silica gel clamp 5 can facilitate disassembly and assembly between the spring 3 and the large magnetic ring 6.

[0039] In an embodiment of the utility model, in combination with Figure 1 As shown in the figure, one end of the rubber 8 close to the large magnetic ring 6 is provided with a protruding part 81, the protruding part 81 is inserted in the end of the large magnetic ring 6, and the circumferential side of the protruding part 81 is provided with a ring-shaped edge 82 to form a ring-shaped groove with the protruding part 81, and the end of the eraser support 1 is inserted in the ring-shaped groove.

[0040] It should be noted that the rubber 8 is provided with a protruding part 81 protruding towards the large magnetic ring 6 at the middle of one end close to the large magnetic ring 6, preferably, the protruding part 81 is a columnar structure, and the large magnetic ring 6 is a cylindrical structure, so as to be inserted in the end of the large magnetic ring 6 away from the silica gel piece, and the circumferential side of the protruding part 81 is provided with a ring-shaped edge 82 to wrap the large magnetic ring 6, so that the connection is more stable, when the spring 3 is in an elongated state, the end of the large magnetic ring 6 away from the silica gel piece protrudes from the port of the eraser support 1, at this time, the user presses the rubber 8 on the position to be erased on the electromagnetic induction plate such as a hand-drawing board, so that the spring 3 is contracted, the large magnetic ring 6 moves relative to the coil 7 to generate frequency change, so as to change the erasing range of the rubber 8, and the whole is convenient and fast.

[0041] In an embodiment of the utility model, in combination with Figure 1 As shown in the figure, one end of the rubber 8 away from the large magnetic ring 6 is arranged as a hemispherical structure, and one side of the hemispherical structure away from the large magnetic ring 6 is provided with a plane to facilitate contact with the position to be erased.

[0042] It should be noted that one end of the rubber 8 away from the large magnetic ring 6 is arranged as a hemispherical structure, and one side of the hemispherical structure away from the large magnetic ring 6 is provided with a plane, the plane can better contact the position to be erased, facilitating the user to press, and the hemispherical structure is not only beautiful, but also can prevent scratching the electromagnetic induction plate during use.

[0043] In an embodiment of the utility model, in combination with Figure 1As shown, the rubber eraser support 1 is internally provided with a partition plate, one end of the spring 3 away from the silica gel piece is abutted on the partition plate, and the PCBA plate 2 is arranged on the other side of the partition plate.

[0044] It should be noted that the rubber eraser support 1 is internally provided with a partition plate, so that the rubber eraser support 1 is divided into two accommodating cavities, one end of the spring 3 away from the silica gel piece is abutted on the partition plate, so as to be accommodated in one of the accommodating cavities, the PCBA plate 2 is arranged on the other side of the partition plate and accommodated in the other accommodating cavity, and the partition plate can not only provide support for the spring 3, but also separate and accommodate the PCBA plate 2.

[0045] In an embodiment of the present application, as shown in Figure 1 and Figure 2 As shown, the rubber eraser support 1 is internally provided with a partition plate, one end of the spring 3 away from the silica gel piece is abutted on the partition plate, and the PCBA plate 2 is arranged on the other side of the partition plate.

[0046] It should be noted that the rubber eraser support 1 is internally provided with a partition plate, so that the rubber eraser support 1 is divided into two accommodating cavities, one end of the spring 3 away from the silica gel piece is abutted on the partition plate, so as to be accommodated in one of the accommodating cavities, the PCBA plate 2 is arranged on the other side of the partition plate and accommodated in the other accommodating cavity, and the partition plate can not only provide support for the spring 3, but also separate and accommodate the PCBA plate 2.

[0047] In an embodiment of the present application, as shown in Figure 1 As shown, the rubber eraser support 1 is internally provided with a channel, so as to facilitate the lead 10 to electrically connect the PCBA plate 2 and the coil 7.

[0048] It should be noted that preferably, the rubber eraser support 1 is internally provided with a channel, the lead 10 is arranged to pass through the channel to electrically connect the PCBA plate 2 and the coil 7, so that the coil 7 can be controlled to work through the PCBA plate 2.

[0049] In an embodiment of the present application, as shown in Figure 1 As shown, one end of the rubber eraser support 1 sleeving the coil 7 is shrinked to form a stepped surface, so as to prevent the silica gel piece from falling off.

[0050] It should be noted that the end of the eraser holder 1 that is fitted with the coil 7 is retracted. After retraction, the diameter of the cylindrical structure of the eraser holder 1 is smaller than the diameter of the cylindrical structure before retraction, which facilitates the fitting of the coil 7. In addition, the stepped surface formed by retraction can also be fitted with a limiting block to abut against the silicone part to prevent the silicone part from falling off.

[0051] This utility model also provides an electromagnetic pen, combined with Figure 2 As shown, the device includes a single magnetic ring eraser 11 as described above and a pen body. The pen body includes a pen tip 12, a pen barrel 13, and a pen stopper 14 connected in sequence. The single magnetic ring eraser 11 is connected to the other end of the pen stopper 14 via the hook. A control circuit board 131 is disposed inside the pen barrel 13. The control circuit board 131 is electrically connected to the PCBA board 2. Multiple buttons 132 are disposed on the outer periphery of the pen barrel 13. Each button 132 is electrically connected to the control circuit board 131, so that the user can control the operation of the single magnetic ring eraser 11 by pressing each button 132.

[0052] It should be noted that one end of the pen plug 14 is connected to the pen barrel 13, and the single magnetic ring eraser 11 is connected to the other end of the pen plug 14 through the hook, thereby being assembled on the electromagnetic pen. The electromagnetic pen also includes a pen tip 12 for writing. A control circuit board 131 is provided inside the pen barrel 13. The control circuit board 131 is electrically connected to the PCBA board 2. Multiple buttons 132 are provided on the periphery of the pen barrel 13, preferably two. The user can adjust the size threshold of the eraser frame by pressing and adjusting each of the buttons 132.

[0053] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A single magnetic ring eraser, characterized in that, The utility model relates to a magnetic eraser holder, comprising: a rubber eraser holder (1); a spring structure arranged in one end of the rubber eraser holder (1); a large magnetic ring (6) slidingly inserted into the rubber eraser holder (1) and elastically abutting against the spring structure; a coil (7) sleeved outside the rubber eraser holder (1) and located at the outer periphery of the large magnetic ring (6); a rubber eraser (8) connected to one end of the large magnetic ring (6) away from the spring structure and adapted to contact the position to be erased.

2. The single magnetic ring eraser of claim 1, wherein, The spring structure comprises a spring (3) and a silica gel piece, one end of the spring (3) being abuttingly arranged in the rubber eraser holder (1), and one end of the silica gel piece being inserted into the other end of the spring (3) structure and the other end of the silica gel piece abutting against the large magnetic ring (6).

3. The single magnetic ring eraser of claim 2, wherein, The silica gel piece comprises a springy silica gel (4) and a silica gel clamp (5), one end of the springy silica gel (4) being inserted into the spring (3) close to one end of the spring (3), one end of the silica gel clamp (5) being provided with a groove, the other end of the springy silica gel (4) being accommodated in the groove away from the spring (3), and the other end of the silica gel clamp (5) abutting against the large magnetic ring (6).

4. The single magnetic ring eraser of claim 1, wherein, One end of the rubber eraser (8) close to the large magnetic ring (6) is provided with a protruding part (81) inserted into the end of the large magnetic ring (6), and the periphery of the protruding part (81) is provided with a ring-shaped edge (82) to form a ring-shaped groove with the protruding part (81), and the end of the rubber eraser holder (1) is inserted into the ring-shaped groove.

5. The single magnetic ring eraser of claim 1, wherein, The other end of the rubber eraser (8) away from the large magnetic ring (6) is provided with a hemispherical structure, and one side of the hemispherical structure away from the large magnetic ring (6) is provided with a flat surface to facilitate contact with the position to be erased.

6. The single magnetic ring eraser of claim 2, wherein, Further comprising a PCBA board (2), a partition plate is arranged in the rubber eraser holder (1), one end of the spring (3) away from the silica gel piece abutting against the partition plate, and the PCBA board (2) is arranged on the other side of the partition plate.

7. The single magnetic ring eraser of claim 6, wherein, Further comprising a connecting piece (9), one end of the rubber eraser holder (1) close to the PCBA board (2) is provided with the connecting piece (9), the connecting piece (9) comprises a plug part embedded in the port of the rubber eraser holder (1) and a hook part arranged outside the plug part, and the hook part is adapted to be engaged with the pen barrel (13) of an electromagnetic pen.

8. The single magnetic ring eraser of claim 6, wherein, A channel is arranged in the rubber eraser holder (1) to facilitate the arrangement of a lead wire (10) to electrically connect the PCBA board (2) and the coil (7).

9. The single magnetic ring eraser of claim 2, wherein, One end of the rubber eraser holder (1) sleeving the coil (7) is provided with a step surface to prevent the silica gel piece from falling off.

10. An electromagnetic pen, characterized by The single magnetic ring eraser (11) as claimed in any one of claims 1-9 is connected to the other end of the pen plug (14) through the hook, a control circuit board (131) is arranged in the pen barrel (13), the control circuit board (131) is electrically connected with the PCBA board (2), a plurality of keys (132) are arranged on the outer periphery of the pen barrel (13), each key (132) is electrically connected with the control circuit board (131), so that the user can control the operation of the single magnetic ring eraser (11) by pressing each key (132).

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