Electromagnetic handwriting pen with magnetic attraction function

Abstract

The utility model belongs to the technical field of electromagnetic handwriting pens, in particular to an electromagnetic handwriting pen with a magnetic attraction function, which comprises a pen holder, a fixing groove is fixedly mounted on one side of the outer wall of the pen holder, an extrusion component is arranged in an inner cavity of the fixing groove, and a magnetic attraction block is detachably arranged in the inner cavity of the fixing groove. The electromagnetic handwriting pen with the magnetic attraction function is characterized in that a fixing groove is formed in the outer wall of the pen holder, a fixing assembly is arranged in an inner cavity of the fixing groove and used for fixing a magnetic attraction block, an eraser is arranged at the top end of the pen holder, and a pen point is detachably connected to the bottom end of the pen holder in an inserted mode. Under the combined action of the fixing rod and the fixing hole, the magnetic attraction block can be fixed, so that the magnetic attraction block can be conveniently disassembled, assembled and replaced, the operation is simple, the use is convenient, and the problems that a battery handwriting pen is fixed and the battery handwriting pen is damaged due to the fact that the magnetic block for fixing the electromagnetic handwriting pen in the prior art cannot be replaced after being damaged are solved. And the storage and carrying convenience is influenced.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic stylus technology, specifically relating to an electromagnetic stylus with magnetic attraction function. Background Technology

[0002] An electromagnetic stylus is an electronic device that allows drawing and writing on tablets, whiteboards, and other devices. It generally uses the principle of electromagnetic induction, where a magnetic core passes through a closed loop formed by a coil, generating an induced current. Current electromagnetic styluses typically require a pressure button. To sense the pressure, the resonant frequency inside the stylus needs to be changed. The most common method is to alter the inductance of the LC resonant coil, which requires fixing the coil and moving the magnetic core. This necessitates a hole in the center of the magnetic core. However, a core with a hole is prone to deformation during production, leading to low yield and increased costs. Furthermore, a hole in the center thins the core wall, making it more susceptible to breakage.

[0003] However, the magnetic blocks used to fix the stylus in existing electromagnetic styluses cannot be replaced after damage, which affects the convenience of storage and carrying the battery-powered stylus. To address this issue, an electromagnetic stylus with magnetic attraction function is provided. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an electromagnetic stylus with magnetic attraction function. The specific technical solution is as follows:

[0005] An electromagnetic stylus with magnetic attraction function includes a pen barrel, a fixing groove fixedly installed on one side of the outer wall of the pen barrel, a pressing component provided in the inner cavity of the fixing groove, a magnetic block detachably provided in the inner cavity of the fixing groove, a fixing component provided in the inner cavity of the fixing groove for fixing the magnetic block, an eraser provided at the top of the pen barrel, and a pen tip detachably inserted at the bottom of the pen barrel.

[0006] Preferably, the extrusion assembly includes a telescopic rod, an extrusion plate, and a spring. The telescopic rod is disposed in the inner cavity of the fixed groove, the extrusion plate is disposed at the end of the telescopic rod away from the inner wall of the fixed groove, and the spring is sleeved on the outer wall of the telescopic rod.

[0007] Preferably, the fixing component includes a sliding component, a sliding plate, a fixing hole, and a fixing rod. The sliding component is disposed on one side of the outer wall of the fixing groove and extends into the inner cavity of the fixing groove to be fixedly connected to the two sliding plates. The two sliding plates are provided with a through fixing hole. The two fixing rods are respectively fixedly connected to the upper and lower sides of the magnetic block.

[0008] Preferably, the inner cavity of the fixing hole is adapted to fit the outer wall of the fixing rod.

[0009] Preferably, the sliding assembly includes a frame, a lead screw, a knob, sliders, a slide rail, and moving rods. The frame is disposed on one side of the outer wall of the fixed groove. 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 knob is disposed at the top of the lead screw. Two sliders are respectively screwed to the upper and lower sides of the outer wall of the lead screw. The slide rail is formed on one side of the outer wall of the fixed groove. Both moving rods are slidably embedded in the inner cavity of the slide rail. One end of each moving rod is fixedly connected to two sliding plates, and the other end of each moving rod is fixedly connected to two sliders.

[0010] Preferably, the threads on the upper and lower sides of the outer wall of the lead screw are arranged opposite to each other.

[0011] Preferably, the outer circumference of the pen barrel is provided with multiple anti-slip pads. Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The fixing rods at both ends of the magnetic block are connected to the fixing holes in the fixing components. Under the combined action of the fixing rods and fixing holes, the magnetic block can be fixed, which makes it easy to disassemble and replace the magnetic block. The operation is simple and convenient. It solves the problem that the magnetic blocks used for fixing in the existing electromagnetic stylus cannot be replaced after damage, which causes the battery stylus to be fixed, affecting its storage and portability.

[0013] 2. By setting the compression component, when the fixing hole is fitted onto the outer wall of the fixing rod, one side of the outer wall of the fixing rod can be in close contact with one side of the inner wall of the fixing hole, thereby achieving a more stable fixation of the magnetic block, avoiding the magnetic block from shaking, and improving the stability of the device during use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the fixing groove in this utility model;

[0016] Figure 3 This is a schematic diagram of the extrusion plate in this utility model;

[0017] Figure 4 In this utility model Figure 3 Enlarged view of point A.

[0018] Reference numerals: 1. Pen barrel; 2. Eraser; 3. Anti-slip pad; 4. Pen tip; 5. Fixing groove; 6. Magnetic block; 7. Frame; 8. Lead screw; 9. Knob; 10. Slider; 11. Slide rail; 12. Moving rod; 13. Slide plate; 14. Fixing hole; 15. Fixing rod; 16. Telescopic rod; 17. Extrusion plate; 18. Spring. Detailed Implementation

[0019] The technical solution of this utility model will now be described with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1-4 This embodiment provides the following technical solution: an electromagnetic stylus with magnetic attraction function, including a pen barrel 1, a fixing groove 5 fixedly installed on one side of the outer wall of the pen barrel 1, a pressing component provided in the inner cavity of the fixing groove 5, a magnetic block 6 detachably provided in the inner cavity of the fixing groove 5, a fixing component provided in the inner cavity of the fixing groove 5 for fixing the magnetic block 6, an eraser 2 provided at the top of the pen barrel 1, and a pen tip 4 detachably inserted at the bottom of the pen barrel 1. The pen tip 4 is sleeved on the outer wall of the fixing rods 15 at the upper and lower ends of the magnetic block 6 through fixing holes 14 in the fixing component. Under the combined action of the fixing rods 15 and the fixing holes 14, the magnetic attraction function can be achieved. The magnetic block 6 is fixed in place, making it easy to disassemble and replace. The operation is simple and convenient. It solves the problem that the magnetic block used to fix the electromagnetic stylus in the prior art cannot be replaced after it is damaged, which affects the storage and portability of the battery stylus. Through the setting of the squeezing component, when the fixing hole 14 is fitted onto the outer wall of the fixing rod 15, one side of the outer wall of the fixing rod 15 can be in close contact with one side of the inner wall of the fixing hole 14. This can achieve a more stable fixation of the magnetic block 6, prevent the magnetic block 6 from shaking, and improve the stability of the device during use.

[0021] In this embodiment, the extrusion assembly includes a telescopic rod 16, an extrusion plate 17, and a spring 18. The telescopic rod 16 is disposed in the inner cavity of the fixing groove 5, and the extrusion plate 17 is disposed at the end of the telescopic rod 16 away from the inner wall of the fixing groove 5. The spring 18 is sleeved on the outer wall of the telescopic rod 16. After the magnetic block 6 is fixed, the magnetic block 6 can be made to extrude the extrusion plate 17. Under the limiting action of the telescopic rod 16, the extrusion plate 17 slides along a straight line towards the inner cavity of the fixing groove 5 to extrude the spring 18. After being extruded, the spring 18 produces a corresponding elastic deformation, thereby generating a corresponding elastic force. The extrusion plate 17 extrudes the magnetic block 6. When the fixing hole 14 is sleeved on the outer wall of the fixing rod 15, one side of the outer wall of the fixing rod 15 is in close contact with one side of the inner wall of the fixing hole 14. This can achieve a more stable fixation of the magnetic block 6, avoid the magnetic block 6 from shaking, and improve the stability of the device during use.

[0022] In this embodiment, the fixing component includes a sliding component, a sliding plate 13, fixing holes 14, and fixing rods 15. The sliding component is disposed on one side of the outer wall of the fixing groove 5 and extends into the inner cavity of the fixing groove 5 to be fixedly connected to the two sliding plates 13. Fixing holes 14 are provided through the two sliding plates 13. The two fixing rods 15 are respectively fixedly connected to the upper and lower sides of the magnetic block 6. The sliding component drives the two sliding plates 13 and the two fixing rods 15 to slide simultaneously toward the center of the inner cavity of the fixing groove 5, so that the two fixing holes 14 can be sleeved on the outer wall of the two fixing rods 15. Under the joint action of the fixing rods 15 and the fixing holes 14, the magnetic block 6 can be fixed, which can facilitate the disassembly and replacement of the magnetic block 6. The operation is simple and convenient. It solves the problem that the magnetic blocks used for fixing in the electromagnetic stylus of the prior art cannot be replaced after damage, which leads to the fixing of the battery stylus and affects its storage and portability.

[0023] In this embodiment, the inner cavity of the fixing hole 14 is adapted to fit the outer wall of the fixing rod 15.

[0024] In this embodiment, the sliding assembly includes a frame 7, a lead screw 8, a knob 9, sliders 10, a slide rail 11, and moving rods 12. The frame 7 is disposed on one side of the outer wall of the fixed groove 5. One end of the lead screw 8 is rotatably connected to the bottom end of the inner cavity of the frame 7 via a bearing, and the other end of the lead screw 8 extends to the top end of the frame 7. The knob 9 is disposed at the top end of the lead screw 8. Two sliders 10 are respectively screwed to the upper and lower sides of the outer wall of the lead screw 8. The slide rail 11 is formed on one side of the outer wall of the fixed groove 5. Both moving rods 12 are slidably embedded in the inner cavity of the slide rail 11. One end of each moving rod 12 is fixedly connected to two sliding plates 13, and the other end of each moving rod 12 is fixedly connected to two sliders 10. Rotating knob 9 causes the lead screw 8 to rotate, which in turn generates a relative thread rotation force on the upper and lower opposite threads on the outer wall of the lead screw 8. This causes the two sliders 10 to drive the two moving rods 12, the sliding plate 13, and the fixing hole 14 to slide simultaneously into the center of the inner cavity of the fixing groove 5. The fixing hole 14 is then fitted onto the outer wall of the fixing rod 15. Under the combined action of the fixing rod 15 and the fixing hole 14, the magnetic block 6 can be fixed, making it easy to disassemble and replace. The operation is simple and convenient. This solves the problem that the magnetic blocks used for fixing in existing electromagnetic styluses cannot be replaced after damage, which affects the storage and portability of the battery-powered stylus.

[0025] In this embodiment, the threads on the upper and lower sides of the outer wall of the lead screw 8 are arranged opposite to each other, so that when the lead screw 8 rotates, the opposite threads on the upper and lower sides of its outer wall generate opposite thread rotational forces.

[0026] 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 stylus with magnetic attraction function, comprising a pen barrel (1), characterized in that: A fixing groove (5) is fixedly installed on one side of the outer wall of the pen (1). A pressing component is provided in the inner cavity of the fixing groove (5). A magnetic block (6) is detachably provided in the inner cavity of the fixing groove (5). A fixing component is provided in the inner cavity of the fixing groove (5) for fixing the magnetic block (6). An eraser (2) is provided at the top of the pen (1). A pen tip (4) is detachably inserted at the bottom of the pen (1).

2. The electromagnetic stylus with magnetic attraction function according to claim 1, characterized in that: The extrusion assembly includes a telescopic rod (16), an extrusion plate (17), and a spring (18). The telescopic rod (16) is disposed in the inner cavity of the fixed groove (5), the extrusion plate (17) is disposed at one end of the telescopic rod (16) away from the inner wall of the fixed groove (5), and the spring (18) is sleeved on the outer wall of the telescopic rod (16).

3. The electromagnetic stylus with magnetic attraction function according to claim 1, characterized in that: The fixing assembly includes a sliding assembly, a sliding plate (13), a fixing hole (14), and a fixing rod (15). The sliding assembly is disposed on one side of the outer wall of the fixing groove (5) and extends into the inner cavity of the fixing groove (5) to be fixedly connected to the two sliding plates (13). The two sliding plates (13) are provided with a through fixing hole (14). The two fixing rods (15) are respectively fixedly connected to the upper and lower sides of the magnetic block (6).

4. An electromagnetic stylus with magnetic attraction function according to claim 3, characterized in that: The inner cavity of the fixing hole (14) is adapted to fit the outer wall of the fixing rod (15).

5. An electromagnetic stylus with magnetic attraction function according to claim 3, characterized in that: The sliding assembly includes a frame (7), a lead screw (8), a knob (9), a slider (10), a slide rail (11), and a moving rod (12). The frame (7) is set on one side of the outer wall of the fixed groove (5). One end of the lead screw (8) is rotatably connected to the bottom of the inner cavity of the frame (7) through a bearing. The other end of the lead screw (8) extends to the top of the frame (7). The knob (9) is set on the top of the lead screw (8). The two sliders (10) are respectively screwed to the upper and lower sides of the outer wall of the lead screw (8). The slide rail (11) is opened on one side of the outer wall of the fixed groove (5). The two moving rods (12) are slidably embedded in the inner cavity of the slide rail (11). One end of the two moving rods (12) is fixedly connected to the two slide plates (13) respectively. The other end of the two moving rods (12) is fixedly connected to the two sliders (10) respectively.

6. An electromagnetic stylus with magnetic attraction function according to claim 5, characterized in that: The threads on the upper and lower sides of the outer wall of the lead screw (8) are arranged opposite to each other.

7. An electromagnetic stylus with magnetic attraction function according to claim 1, characterized in that: The outer circumference of the pen barrel (1) is provided with multiple anti-slip pads (3).

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