Electromagnetic handwriting board with screen protection structure

Abstract

The utility model belongs to the technical field of electromagnetic handwriting boards, and particularly relates to an electromagnetic handwriting board with a screen protection structure, which comprises a handwriting board, a rack is arranged on one side of the outer wall of the handwriting board, a sliding component is arranged in an inner cavity of the rack, and two protection boards are arranged on the sliding component. A fixing groove is formed in one side of the outer wall of the handwriting board, a handwriting pen is detachably embedded in an inner cavity of the fixing groove, and a fixing assembly is arranged in the inner cavity of the fixing groove and used for fixing the handwriting pen. The electromagnetic handwriting device solves the problems that an electromagnetic handwriting device in the prior art is not provided with a protection structure in the actual use process, a screen of the electromagnetic handwriting device is frequently damaged after being impacted, and the service life of an electromagnetic handwriting board is affected.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic handwriting tablet technology, specifically relating to an electromagnetic handwriting tablet with a screen protection structure. Background Technology

[0002] Electromagnetic sensing technology, characterized by high resolution and resistance to external influences, is increasingly widely used. Wireless passive electromagnetic sensing technology, in particular, represents the pinnacle of contemporary electromagnetic sensing technology. Because electromagnetic pens do not require wires to receive excitation from an electromagnetic plate, and because they are battery-free and easily miniaturized, they are widely applied in drawing tablets, drawing screens, embedded products, and other fields. The working principle of wireless passive electromagnetic sensing technology is as follows: the electromagnetic plate emits electromagnetic waves with a frequency similar to or the same as the resonant frequency of the resonant circuit built into the electromagnetic pen. When the electromagnetic pen receives the emitted electromagnetic waves, the resonant circuit resonates, generating electrical energy within the pen. The pen then emits electromagnetic waves at the same frequency as its resonant frequency back to the electromagnetic plate. After receiving the electromagnetic waves, they undergo a series of processing steps including amplification, filtering, phase transformation, and integration. The MCU within the electromagnetic plate calculates information such as the pen's position, pressure, and tilt angle, encapsulates this information into specific data packets, and sends them to a host computer for use.

[0003] However, existing electromagnetic handwriting devices lack protective structures during actual use, and their screens are often damaged after being impacted, affecting the lifespan of the electromagnetic handwriting tablet. To address this issue, an electromagnetic handwriting tablet with a screen protection structure is provided. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an electromagnetic handwriting tablet with a screen protection structure. The specific technical solution is as follows:

[0005] An electromagnetic handwriting tablet with a screen protection structure includes a handwriting tablet, a frame is provided on one side of the outer wall of the handwriting tablet, a sliding assembly is provided in the inner cavity of the frame, two protective plates are provided on the sliding assembly, a fixing groove is provided on one side of the outer wall of the handwriting tablet, a stylus is detachably embedded in the inner cavity of the fixing groove, and a fixing assembly is provided in the inner cavity of the fixing groove for fixing the stylus.

[0006] Preferably, the fixing component includes a rod, a fixing seat, a handle, a spring, and fixing holes. The fixing holes are opened at the top end of the inner cavity of the fixing groove. The rod is slidably inserted into the bottom end of the inner cavity of the fixing groove and extends to the bottom end of the writing tablet. The fixing seat is located at the top end of the rod. The handle is located at the bottom end of the rod. The spring is sleeved on the outside of the rod. The two fixing holes are respectively opened at the top end of the inner cavity of the fixing groove and the top end of the fixing seat.

[0007] Preferably, the inner cavity of the fixing hole is adapted to fit the two ends of the stylus.

[0008] Preferably, the sliding assembly includes a lead screw, sliders, a limiting assembly, and a driving assembly. One end of the lead screw is rotatably connected to the bottom of the inner cavity of the frame via a bearing, and the other end of the lead screw extends to the top of the frame. The driving assembly is located at the top of the handwriting tablet and is fixedly sleeved on the top of the lead screw. The two sliders are respectively screwed to the upper and lower sides of the outer wall of the lead screw and are respectively fixedly connected to the two protective plates. The limiting assembly is located on one side of the outer wall of the handwriting tablet and is fixedly connected to the two sliders.

[0009] Preferably, the limiting component includes a limiting groove and limiting blocks. The limiting groove is formed on one side of the inner cavity of the frame, and the two limiting blocks are slidably embedded in the inner cavity of the limiting groove and are respectively fixedly connected to two sliders.

[0010] Preferably, the inner cavity of the limiting groove and the outer wall of the limiting block are adapted to each other and are both in the shape of a "T".

[0011] Preferably, the drive assembly includes a worm gear, a bracket, a worm, and a knob. The worm gear is fixedly sleeved on the outer wall of the lead screw. The bracket is located on one side of the top of the writing tablet. The worm is rotatably connected to the bracket through a bearing and meshes with the worm gear. The knob is located at the left end of the worm.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting up protective plates, the screen of the writing tablet can be protected, which solves the problem that existing electromagnetic handwriting devices do not have a protective structure in actual use, and their screens are often damaged after being hit, thus affecting the service life of the electromagnetic handwriting tablet. With the setting of sliding components, the two protective plates can slide relative to each other at the same time, which makes it easy to open and close the two protective plates. The operation is simple and convenient.

[0014] 2. The stylus can be secured by the fixing components, making it convenient to store and carry. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 In this utility model Figure 1 Enlarged view of point A;

[0017] Figure 3 This is a schematic diagram of the structure of the stylus in this utility model;

[0018] Figure 4 In this utility model Figure 2 Enlarged view of point B;

[0019] Figure 5 This is a schematic diagram of the fixing component in this utility model;

[0020] Figure 6 In this utility model Figure 5 Enlarged view of point C.

[0021] Reference numerals in the attached diagram: 1. Handwriting tablet; 2. Frame; 3. Protective plate; 4. Fixing groove; 5. Fixing hole; 6. Stylus; 7. Insert rod; 8. Fixing base; 9. Handle; 10. Spring; 11. Lead screw; 12. Slider; 13. Limiting groove; 14. Limiting block; 15. Worm gear; 16. Bracket; 17. Knob; 18. Worm. Detailed Implementation

[0022] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-6 This embodiment provides the following technical solution: an electromagnetic handwriting tablet with a screen protection structure, including a handwriting tablet 1, a frame 2 is provided on one side of the outer wall of the handwriting tablet 1, a sliding component is provided in the inner cavity of the frame 2, two protective plates 3 are provided on the sliding component, a fixing groove 4 is provided on one side of the outer wall of the handwriting tablet 1, a stylus 6 is detachably embedded in the inner cavity of the fixing groove 4, and a fixing component is provided in the inner cavity of the fixing groove 4 for fixing the stylus 6. By setting the protective plates 3, the screen protection of the handwriting tablet 1 can be realized, which solves the problem that the electromagnetic handwriting device of the prior art does not have a protective structure in actual use, and its screen is often damaged after being impacted, thus affecting the service life of the electromagnetic handwriting tablet 1. By setting the sliding component, the two protective plates 3 can slide relative to each other at the same time, which makes it convenient to open and close the two protective plates 3. The operation is simple and convenient. By setting the fixing component, the stylus 6 can be fixed, making it convenient to store and carry the stylus 6.

[0024] In this embodiment, the fixing component includes a rod 7, a fixing seat 8, a handle 9, a spring 10, and a fixing hole 5. The fixing hole 5 is opened at the top of the inner cavity of the fixing groove 4. The rod 7 is slidably inserted into the bottom of the inner cavity of the fixing groove 4 and extends to the bottom of the writing tablet 1. The fixing seat 8 is set at the top of the rod 7, the handle 9 is set at the bottom of the rod 7, and the spring 10 is sleeved on the outside of the rod 7. The two fixing holes 5 are respectively opened at the top of the inner cavity of the fixing groove 4 and the top of the fixing seat 8. Pulling the handle 9 causes the rod 7 and the fixing seat 8 to slide downwards, so that the spring 10 is compressed by the fixing seat 8 and produces corresponding elastic deformation, thereby generating corresponding elastic force. At this time, the stylus 6 is placed in the inner cavity of the fixing groove 4 and one end of it is inserted into the inner cavity of one of the fixing grooves 4. Under the action of the elastic force of the spring 10, the fixing seat 8 can be reset, thereby allowing the other end of the stylus 6 to be inserted into the inner cavity of the other fixing hole 5, thereby achieving the fixing of the stylus 6.

[0025] In this embodiment, the inner cavity of the fixing hole 5 is adapted to fit the two ends of the stylus 6.

[0026] In this embodiment, the sliding assembly includes a lead screw 11, sliders 12, a limiting assembly, and a driving assembly. One end of the lead screw 11 is rotatably connected to the bottom of the inner cavity of the frame 2 via a bearing, and the other end of the lead screw 11 extends to the top of the frame 2. The driving assembly is located at the top of the handwriting pad 1 and is fixedly sleeved on the top of the lead screw 11. Two sliders 12 are respectively screwed to the upper and lower sides of the outer wall of the lead screw 11 and are respectively fixedly connected to the two protective plates 3. The limiting assembly is located on one side of the outer wall of the handwriting pad 1 and is fixedly connected to the two sliders 12. By driving the lead screw 11 to rotate, the opposing threads on the upper and lower sides of the outer wall of the lead screw 11 generate opposing thread rotational forces, so that the two sliders 12, under the limiting action of the limiting groove 13 and the limiting block 14, respectively drive the two protective plates 3 to slide relative to each other at the same time. This facilitates the opening and closing of the two protective plates 3, and is simple to operate and easy to use.

[0027] In this embodiment, the limiting component includes a limiting groove 13 and limiting blocks 14. The limiting groove 13 is opened on one side of the inner cavity of the frame 2. The two limiting blocks 14 are slidably embedded in the inner cavity of the limiting groove 13 and are respectively fixedly connected to the two sliders 12. Under the joint action of the limiting groove 13 and the limiting blocks 14, the sliders 12 can be prevented from rotating with the lead screw 11 when the lead screw 11 rotates, thereby improving the stability of the sliding component during use.

[0028] In this embodiment, the inner cavity of the limiting groove 13 and the outer wall of the limiting block 14 are adapted to each other and are both in the shape of a "T". This allows one end of the limiting block 14 to always remain embedded in the inner cavity of the limiting groove 13, thereby improving the stability of the limiting component during use.

[0029] In this embodiment, the drive assembly includes a worm gear 15, a bracket 16, a worm 18, and a knob 17. The worm gear 15 is fixedly sleeved on the outer wall of the lead screw 11. The bracket 16 is located on one side of the top of the handwriting tablet 1. The worm 18 is rotatably connected to the bracket 16 through a bearing and meshes with the worm gear 15. The knob 17 is located at the left end of the worm 18. Rotating the knob 17 causes the worm 18 to rotate. Since the worm 18 meshes with the worm gear 15, when the worm 18 rotates, the worm gear 15 can drive the lead screw 11 to rotate. Because the worm 18 and the worm gear 15 have a self-locking effect, it can prevent the lead screw 11 from rotating due to vibration.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic handwriting tablet with a screen protection structure, comprising a handwriting tablet (1), characterized in that: A frame (2) is provided on one side of the outer wall of the writing tablet (1). A sliding component is provided in the inner cavity of the frame (2). Two protective plates (3) are provided on the sliding component. A fixing groove (4) is provided on one side of the outer wall of the writing tablet (1). A stylus (6) is detachably embedded in the inner cavity of the fixing groove (4). A fixing component is provided in the inner cavity of the fixing groove (4) for fixing the stylus (6).

2. The electromagnetic handwriting tablet with a screen protection structure according to claim 1, characterized in that: The fixing assembly includes a rod (7), a fixing seat (8), a handle (9), a spring (10), and fixing holes (5). The fixing holes (5) are opened at the top of the inner cavity of the fixing groove (4). The rod (7) is slidably inserted into the bottom of the inner cavity of the fixing groove (4) and extends to the bottom of the writing tablet (1). The fixing seat (8) is set at the top of the rod (7). The handle (9) is set at the bottom of the rod (7). The spring (10) is sleeved on the outside of the rod (7). The two fixing holes (5) are respectively opened at the top of the inner cavity of the fixing groove (4) and the top of the fixing seat (8).

3. The electromagnetic handwriting tablet with a screen protection structure according to claim 2, characterized in that: The inner cavity of the fixing hole (5) is adapted to fit the two ends of the stylus (6).

4. The electromagnetic handwriting tablet with a screen protection structure according to claim 1, characterized in that: The sliding assembly includes a lead screw (11), a slider (12), a limiting assembly, and a driving assembly. One end of the lead screw (11) is rotatably connected to the bottom of the inner cavity of the frame (2) via a bearing, and the other end of the lead screw (11) extends to the top of the frame (2). The driving assembly is located at the top of the handwriting tablet (1) and is fixedly sleeved on the top of the lead screw (11). The two sliders (12) are respectively screwed to the upper and lower sides of the outer wall of the lead screw (11) and are respectively fixedly connected to the two protective plates (3). The limiting assembly is located on one side of the outer wall of the handwriting tablet (1) and is fixedly connected to the two sliders (12).

5. An electromagnetic handwriting tablet with a screen protection structure according to claim 4, characterized in that: The limiting component includes a limiting groove (13) and limiting blocks (14). The limiting groove (13) is opened on one side of the inner cavity of the frame (2). The two limiting blocks (14) are slidably embedded in the inner cavity of the limiting groove (13) and are respectively fixedly connected to the two sliders (12).

6. An electromagnetic handwriting tablet with a screen protection structure according to claim 5, characterized in that: The inner cavity of the limiting groove (13) and the outer wall of the limiting block (14) are adapted to each other and are both in the shape of a "T".

7. An electromagnetic handwriting tablet with a screen protection structure according to claim 4, characterized in that: The drive assembly includes a worm gear (15), a bracket (16), a worm (18), and a knob (17). The worm gear (15) is fixedly sleeved on the outer wall of the lead screw (11). The bracket (16) is located on one side of the top of the writing board (1). The worm (18) is rotatably connected to the bracket (16) through a bearing and meshes with the worm gear (15). The knob (17) is located at the left end of the worm (18).

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