Electromagnetic handwriting pen

Abstract

The utility model relates to the technical field of electromagnetic handwriting pens, in particular to an electromagnetic handwriting pen which comprises a pen holder and a pen point, the pen point is fixedly connected with the lower surface of the pen holder, a pen point is installed on the lower inner wall of the pen point, a groove is formed in the joint of the pen point and the pen holder, and a protection assembly is arranged on the surface of the pen holder. The protection assembly comprises a first lantern ring, the first lantern ring is mounted on the outer circumference of the lower end of the pen holder, a first mounting cavity is formed in the inner arc face of the first lantern ring, the portion, located on the inner wall of the first mounting cavity, of the first lantern ring is slidably connected with a first arc-shaped force bearing plate, and a first clamping pin is fixedly connected to the inner arc face of the first arc-shaped force bearing plate. According to the utility model, through the arrangement of the protection assembly, the pen point can be protected through the protection structure when the handwriting pen is in a storage state, so that the problem that the pen point is exposed outside and is easy to damage in the falling process is reduced, and the protection effect of the handwriting pen on the pen point part is further improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic stylus technology, and in particular to an electromagnetic stylus. Background Technology

[0002] An electromagnetic stylus is an input device based on electromagnetic induction technology, used in conjunction with devices that support electromagnetic induction (such as graphics tablets and electromagnetic screens). It mainly consists of a pen body, a pen tip, an electromagnetic induction component, a battery (some are wirelessly charged or passive), and a control circuit. With an electromagnetic stylus, functions such as writing, drawing, and annotation can be realized. It is widely used in design, painting, paperless office, education and other fields, bringing users a convenient and natural interactive experience.

[0003] Existing technologies, such as the utility model patent with publication number CN211718859U, disclose a magnetic electromagnetic stylus. This patent uses a pen body and a pen holder. When not in use, the pen body is placed on the pen holder. A groove is provided on the side of the pen body near the tail. A wedge and a magnet are located at the bottom of the groove. The magnet is connected to the bottom of the groove via a tension spring. The wedge is positioned between the bottom of the groove and the magnet. The larger end of the wedge is connected to the side of the groove via a compression spring, and the smaller end of the wedge has an elastic air bladder. The inclined surface of the wedge contacts the magnet, and the wedge is used to push the magnet out of the pen body. This solves the problem of the coil being installed close to the pen tip in conventional electromagnetic pens, thus maximizing the reproduction of the writing on the pen. In reality, the handwriting recognized on the writing tablet is based on the position induced by the coil inside the electromagnetic pen and the antenna circuit on the writing tablet. When not in use, the electromagnetic stylus is placed in a pen slot or pen holder. When placed in the pen slot, the electromagnetic stylus is not fixed and is easily dropped, causing cosmetic damage and functional malfunction.

[0004] When using an electromagnetic stylus, there is a problem: existing electromagnetic styluses, such as those mentioned above, are mostly fixed by magnetic attraction when stored. Since there is a threshold for the magnetic attraction force, when the external force on the stylus exceeds the threshold, the stylus will fall off the fixed part. Since the stylus tip is mostly exposed, when the stylus falls, the tip is likely to hit the ground, which will lead to damage to the stylus. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where, when the external force applied to the stylus exceeds the threshold of the suction force, the stylus will fall from its fixed position. Since the tip of the stylus is mostly exposed, when the stylus falls, the tip is likely to hit the ground, which will damage the stylus. Therefore, an electromagnetic stylus is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electromagnetic stylus, comprising a pen barrel and a pen tip, wherein the pen tip is fixedly connected to the lower surface of the pen barrel, a pen tip is installed on the lower inner wall of the pen tip, a groove is provided at the connection between the pen tip and the pen barrel, a protective component is provided on the surface of the pen barrel, the protective component includes a collar, the collar is installed on the outer circumference of the lower end of the pen barrel, an installation cavity is provided on the inner arc surface of the collar, an arc-shaped load-bearing plate is slidably connected to the inner wall of the installation cavity, a locking pin is fixedly connected to the inner arc surface of the arc-shaped load-bearing plate, the locking pin passes through the inner circumference of the collar and is inserted into the inner wall of the groove, a limiting spring is fixedly connected to the outer arc surface of the arc-shaped load-bearing plate, the end of the limiting spring away from the arc-shaped load-bearing plate is fixedly connected to the inner wall of the installation cavity, and a protective sleeve is fixedly connected to the upper surface of the collar.

[0007] The protective assembly also includes a second collar, which is fixedly connected to the upper surface of the protective sleeve. The inner arc surface of the second collar has an installation cavity. An arc-shaped load-bearing plate is slidably connected to the inner wall of the installation cavity. A locking pin is fixedly connected to the inner arc surface of the arc-shaped load-bearing plate, which is slidably connected to the inner wall of the installation cavity. A limit spring is fixedly connected to the outer arc surface of the arc-shaped load-bearing plate, and the end of the limit spring away from the arc-shaped load-bearing plate is fixedly connected to the inner wall of the installation cavity.

[0008] Preferably, a rubber ring is fixedly connected to the lower surface of the collar one. The rubber ring is sleeved with the outer arc surface of the pen tip. When the stylus falls and one end of the collar one contacts the ground, the rubber ring absorbs the impact force generated during the fall, thereby reducing the damage caused by the fall.

[0009] Preferably, a pull rope is fixedly connected to the center of the outer arc surface of the second arc-shaped load-bearing plate. A groove is formed on the outer circumference of the upper end of the protective sleeve. A lever is slidably connected to the inner wall of the groove on the protective sleeve. The end of the pull rope away from the second arc-shaped load-bearing plate is fixedly connected to the upper surface of the lever. A through hole is formed on the outer circumference of the second collar. The through hole communicates with the interior of the mounting cavity. The pull rope is slidably connected to the inner wall of the through hole. The second arc-shaped load-bearing plate and the lever can be connected by the pull rope, so that when the operator moves the lever, the lever can cooperate with the pull rope to pull the second arc-shaped load-bearing plate, thereby allowing the second locking pin in the locked state to disengage from the groove.

[0010] Preferably, the collar is sleeved on the surface of the pen tip. The collar can restrict one end of the limiting spring to ensure the constraint effect of the limiting spring on the arc-shaped load plate, thereby making the arc-shaped load plate stable in the locked state.

[0011] Preferably, the locking pin 1 is slidably connected to the inner wall of the mounting cavity 1, and the lower end of the locking pin 1 near the groove is chamfered. Through the locking pin 1, in the locked state, in conjunction with the arc-shaped load plate 1 and the limiting spring 1, the position of the collar 1 can be locked to ensure the stability of the collar 1 in the locked state.

[0012] Preferably, the protective sleeve is fitted onto the surface of the pen barrel, and the second collar is fitted onto the surface of the pen barrel. The protective sleeve, together with the first collar and the rubber ring, can protect the pen tip in the protective state to ensure the safety of the pen tip when it is not in use.

[0013] Preferably, the second locking pin is adapted to the specifications of the groove. The second locking pin can lock the position of the second collar when it is inserted into the groove, thereby protecting the protective sleeve, the first collar and the rubber ring and increasing the firmness of the protective sleeve, the first collar and the rubber ring in the protected state.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting up a protective component, the pen tip can be protected by the protective structure when the stylus is stored, thereby reducing the problem of the pen tip being exposed and easily damaged during drops, and further improving the protection effect of the stylus on the pen tip. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an electromagnetic stylus is provided for this utility model;

[0017] Figure 2 A schematic diagram of the protective state structure of an electromagnetic stylus is provided for this utility model;

[0018] Figure 3 This utility model provides a partial structural diagram of an electromagnetic stylus;

[0019] Figure 4 A schematic diagram of the protective component structure of an electromagnetic stylus is provided for this utility model;

[0020] Figure 5 This utility model proposes an electromagnetic stylus. Figure 4 Schematic diagram of the structure at point A in the middle.

[0021] Legend:

[0022] 1. Pen barrel; 2. Pen tip; 3. Pen nib; 4. Groove; 5. Protective component; 51. Collar 1; 52. Mounting cavity 1; 53. Arc-shaped load-bearing plate 1; 54. Locking pin 1; 55. Limiting spring 1; 56. Rubber ring; 57. Protective sleeve; 58. Collar 2; 59. Mounting cavity 2; 510. Arc-shaped load-bearing plate 2; 511. Locking pin 2; 512. Limiting spring 2; 513. Pull rope; 514. Slide groove; 515. Pulley; 516. Through hole. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: an electromagnetic stylus, including a pen barrel 1 and a pen tip 2. The pen tip 2 is fixedly connected to the lower surface of the pen barrel 1. A pen tip 3 is installed on the lower inner wall of the pen tip 2. A groove 4 is provided at the connection between the pen tip 2 and the pen barrel 1. A protective component 5 is provided on the surface of the pen barrel 1.

[0024] In this embodiment: the protective component 5 includes a collar 51, which is installed on the outer circumference of the lower end of the pen barrel 1. The inner arc surface of the collar 51 has an installation cavity 52. ​​The collar 51 is slidably connected to the inner wall of the installation cavity 52. ​​The inner arc surface of the arc force plate 53 is fixedly connected to a locking pin 54, which passes through the inner circumference of the collar 51 and is inserted into the inner wall of the groove 4. The outer arc surface of the arc force plate 53 is fixedly connected to a limiting spring 55. The end of the limiting spring 55 away from the arc force plate is fixedly connected to the inner wall of the installation cavity 52. ​​The upper surface of the collar 51 is fixedly connected to a protective sleeve 57.

[0025] The protective component 5 also includes a second collar 58, which is fixedly connected to the upper surface of the protective sleeve 57. The inner arc surface of the second collar 58 has an installation cavity 59. The second collar 58 is slidably connected to the inner wall of the installation cavity 59. The inner arc surface of the arc load plate 510 is fixedly connected to a second locking pin 511, which is slidably connected to the inner wall of the installation cavity 59. The outer arc surface of the arc load plate 510 is fixedly connected to a second limiting spring 512, and the end of the second limiting spring 512 away from the arc load plate 510 is fixedly connected to the inner wall of the installation cavity 59.

[0026] Specifically, a rubber ring 56 is fixedly connected to the lower surface of the collar 51. The rubber ring 56 is sleeved with the outer arc surface of the pen tip 2. When the stylus falls and one end of the collar 51 contacts the ground, the rubber ring 56 absorbs the impact force generated during the fall, thereby reducing the damage caused by the fall.

[0027] Specifically, a pull rope 513 is fixedly connected to the center of the outer arc surface of the second arc load plate 510. A groove 514 is provided on the outer circumference of the upper end of the protective sleeve 57. A lever block 515 is slidably connected to the inner wall of the groove 514 of the protective sleeve 57. One end of the pull rope 513 away from the second arc load plate 510 is fixedly connected to the upper surface of the lever block 515. A through hole 516 is provided on the outer circumference of the second collar 58. The through hole 516 is connected to the interior of the mounting cavity. The pull rope 513 is slidably connected to the inner wall of the through hole 516.

[0028] In this embodiment: the arc-shaped load-bearing plate 510 and the lever 515 can be connected by the pull rope 513, so that when the operator moves the lever 515, the lever 515 can cooperate with the pull rope 513 to pull the arc-shaped load-bearing plate 510, thereby allowing the locking pin 511 in the locked state to disengage from the groove 4.

[0029] Specifically, the collar 51 is sleeved on the surface of the pen tip 2. The collar 51 can restrict one end of the limiting spring 55 to ensure the constraint effect of the limiting spring 55 on the arc-shaped load plate 53, thereby ensuring the stability of the arc-shaped load plate 53 in the locked state.

[0030] In this embodiment: the locking pin 54 is slidably connected to the inner wall of the mounting cavity 52, and the lower end of the locking pin 54 near the groove 4 is chamfered.

[0031] In this embodiment: the locking pin 54, in the locked state, together with the arc-shaped load plate 53 and the limiting spring 55, can lock the position of the collar 51 to ensure the stability of the collar 51 in the locked state.

[0032] Specifically, the protective sleeve 57 is fitted onto the surface of the pen barrel 1, and the second collar 58 is fitted onto the surface of the pen barrel 1. Through the protective sleeve 57, in the protective state, together with the first collar 51 and the rubber ring 56, the pen tip 3 is protected to ensure the safety of the pen tip 3 when it is not in use.

[0033] Specifically, the pin 2511 is compatible with the specifications of the groove 4.

[0034] In this embodiment: the second locking pin 511 can lock the position of the second collar 58 when it is inserted into the groove 4, thereby putting the protective sleeve 57, the first collar 51 and the rubber ring 56 in a protected state and increasing the firmness of the protective sleeve 57, the first collar 51 and the rubber ring 56 in the protected state.

[0035] Working principle: By setting up the protective component 5, when the electromagnetic stylus is finished being used and needs to be stored, the protective sleeve 57 is pushed downwards. The protective sleeve 57 pushes the collar 51, which in turn pushes the locking pin 54. The inclined surface of the locking pin 54 contacts the edge of the groove 4, compressing the arc-shaped load-bearing plate 53 and the limiting spring 55. The limiting spring 55 is deformed by compression, and the locking pin 54 loses its constraint and is forced to detach from the groove 4. When the locking pin 54 detaches from the groove 4, the collar 51 and the protective sleeve 57 lose their lock. The protective sleeve 57 is then pulled by the collar 58, and the locking pin 511 moves towards the groove 4 along with the collar 58. When the locking pin 511 coincides with the groove 4, the locking pin 54 leaves the pen tip area. The area is opened, and the pressure applied to the arc-shaped force plate 53 and the limiting spring 55 is lost. The limiting spring 55 loses pressure and pushes the arc-shaped force plate 53 and the locking pin 54 to reset. The locking pin 511 loses the constraint of the pen barrel 1 and loses the pressure applied to the arc-shaped force plate 510 and the limiting spring 512. The limiting spring 512 loses pressure and rebounds, pushing the arc-shaped force plate 510 and the locking pin 511 to reset. The locking pin 511 resets and inserts into the groove 4 to lock the position of the collar 58. When the collar 58 is locked, it can restrict the position of the protective sleeve 57. Then the protective sleeve 57, the collar 51 and the rubber ring 56 are locked in the unfolded state and protect the pen tip 3.

[0036] When the protective structure needs to be opened, hold the upper end of the pen barrel 1 with your right hand, and pinch the two levers 515 on both sides with your left thumb and forefinger respectively. Pull the levers 515 towards the pen tip 3. The levers 515, together with the pull rope 513, pull the arc-shaped load plate 2 510. The arc-shaped load plate 2 510 is forced to compress the limiting spring 2 512. The limiting spring 2 512 is deformed by compression. At the same time as the arc-shaped load plate 2 510 compresses the limiting spring 2 512, it pulls the locking pin 2 511. The locking pin 2 511 is disengaged from the groove 4 and loses its locking to the collar 2 58. When the levers 515 move to the maximum distance, the remaining fingers of the left hand hold the protective sleeve 57 and push the protective sleeve 57 upward. The protective sleeve 57 pulls the collar 1 51. The collar 1 51 pulls the locking pin 1 54. The locking pin 1 54 moves to the maximum distance. Guided by the curved surface of the pen tip 2, the pen tip 2 slides into the mounting cavity 52 and presses the curved load plate 53 and the limiting spring 55. When the locking pin 54 moves to coincide with the groove 4, the locking pin 54 loses the restriction of the pen tip 2 and loses the pressure applied to the curved load plate 53 and the limiting spring 55. The limiting spring 55 loses pressure and pushes the curved load plate 53 and the locking pin 54 back to the groove 4. The locking pin 54 then cooperates with the collar 51 to limit the protective sleeve 57 to the open state. By setting the protective component 5, the pen tip 3 can be protected by the protective structure when the pen is stored, thereby reducing the problem of the pen tip 3 being exposed and easily damaged during the fall, and further improving the protection effect of the pen tip 3.

Claims

1. An electromagnetic stylus comprising a shaft (1) and a tip (2), characterized in that: The pen head (2) is fixedly connected with the lower surface of the pen barrel (1), the lower inner wall of the pen head (2) is provided with a pen nib (3), a groove (4) is arranged at the joint of the pen head (2) and the pen barrel (1), the surface of the pen barrel (1) is provided with a protection assembly (5), the protection assembly (5) comprises a sleeve ring I (51), the outer circumference of the lower end of the pen barrel (1) is provided with the sleeve ring I (51), the inner arc surface of the sleeve ring I (51) is provided with a mounting cavity I (52), the inner wall of the mounting cavity I (52) is slidably connected with an arc-shaped load plate I (53), the inner arc surface of the arc-shaped load plate I (53) is fixedly connected with a clamping pin I (54), the clamping pin I (54) penetrates through the inner circumference of the sleeve ring I (51), the clamping pin I (54) is inserted with the inner wall of the groove (4), the outer arc surface of the arc-shaped load plate I (53) is fixedly connected with a limiting spring I (55), the end, away from the arc-shaped load plate I, of the limiting spring I (55) is fixedly connected with the inner wall of the mounting cavity I (52), the upper surface of the sleeve ring I (51) is fixedly connected with a protective sleeve (57). The protection assembly (5) further comprises a sleeve ring II (58), the sleeve ring II (58) is fixedly connected with the upper surface of the protective sleeve (57), the inner arc surface of the sleeve ring II (58) is provided with a mounting cavity II (59), the inner wall of the mounting cavity II (59) is slidably connected with an arc-shaped load plate II (510), the inner arc surface of the arc-shaped load plate II (510) is fixedly connected with a clamping pin II (511), the clamping pin II (511) is slidably connected with the inner wall of the mounting cavity II (59), the outer arc surface of the arc-shaped load plate II (510) is fixedly connected with a limiting spring II (512), the end, away from the arc-shaped load plate II (510), of the limiting spring II (512) is fixedly connected with the inner wall of the mounting cavity II (59).

2. An electromagnetic handwriting stylus according to claim 1, wherein: The lower surface of the sleeve ring I (51) is fixedly connected with a rubber ring (56), the rubber ring (56) is sleeved with the outer arc surface of the pen head (2).

3. An electromagnetic handwriting stylus according to claim 1, wherein: The center of the outer arc surface of the arc-shaped load plate II (510) is fixedly connected with a pull rope (513), the outer circumference of the upper end of the protective sleeve (57) is provided with a sliding groove (514), the inner wall of the sliding groove (514) is slidably connected with a pushing block (515), the end, away from the arc-shaped load plate II (510), of the pull rope (513) is fixedly connected with the upper surface of the pushing block (515), the outer circumference of the sleeve ring II (58) is provided with a through hole (516), the through hole (516) is communicated with the inside of the mounting cavity, and the pull rope (513) is slidably connected with the inner wall of the through hole (516).

4. An electromagnetic handwriting stylus according to claim 1, wherein: The sleeve ring I (51) is sleeved with the surface of the pen head (2).

5. An electromagnetic handwriting stylus according to claim 1, wherein: The clamping pin I (54) is slidably connected with the inner wall of the mounting cavity I (52), and the lower end, close to the side of the groove (4), of the clamping pin I (54) is provided with a chamfer.

6. An electromagnetic handwriting stylus according to claim 1, wherein: The protective sleeve (57) is sleeved with the surface of the pen barrel (1), and the sleeve ring II (58) is sleeved with the surface of the pen barrel (1).

7. An electromagnetic handwriting stylus according to claim 1, wherein: The keyhole two (511) is adapted to the size of the recess (4).

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