Pencil grip capable of rotating pencil

Abstract

When a pressing rod is pressed, the pressing rod moves downwards along a track, and a rotating pipe is driven by the pressing rod to move downwards. In the downward moving process of the rotating pipe, the cam table of the rotating rod can be gradually separated from the current cam groove, due to the fact that the second guiding saw teeth and the first guiding saw teeth are arranged in a staggered mode, the rotating rod can rotate under the guiding of the second guiding saw teeth after being separated from the current cam groove and enter the next cam groove, and the pressing rod is loosened. Under the action of the elastic piece, the cam table on the rotating pipe retracts along the cam groove in the inner side of the sleeve and continues to rotate, and therefore the action of pressing and rotating is achieved. The rotating tube is connected with the penholder fastening sleeve, the pencil is locked in the penholder fastening sleeve, the pencil can rotate along with the rotating tube, rotation of the pencil in the sleeve is achieved, the pencil is pressed to rotate in the using process, the pencil point can be evenly abraded in the writing process, the number of times of sharpening the pencil is reduced, and the interestingness of the pencil holding device is increased.

Description

Technical Field

[0001] This utility model relates to the field of writing instrument technology, and more specifically, to a rotatable pencil grip. Background Technology

[0002] Many primary school students have incorrect pen-holding postures. Long-term use of this incorrect posture not only affects their eyesight but also their physical health. Ophthalmologists explain that writing posture is very important. Incorrect sitting and pen-holding postures can cause teenagers to develop myopia at an early age. Therefore, pen grippers have appeared on the market to correct the pen-holding posture of primary school students, reduce the occurrence of myopia, and benefit the healthy growth of primary and secondary school students.

[0003] The correct pen-holding posture should be as follows: the distal interphalangeal joint of the index finger should be straight; the thumb should lightly touch or slightly separate from the index finger, with the thumb slightly higher than the index finger; the fingertips should be about 3 centimeters away from the pen tip; the angle between the pen barrel and the paper should be 45 to 60 degrees; and the pen barrel should rest against the base of the index finger, not against the web of the thumb and forefinger. However, pen grips currently on the market designed to correct students' pen-holding posture often have complex structures and cannot guarantee the straightness of the distal interphalangeal joint of the index finger, making it difficult to achieve the goal of correcting the correct pen-holding posture.

[0004] Chinese patent CN206765645U discloses a pen grip correction device and a corrective pen, including a sleeve and an index finger groove, a thumb groove, and a middle finger groove located on the outer wall of the sleeve. The index finger groove is used to maintain the index finger's straight grip on the pen barrel, the thumb groove can restrict the position of the thumb, and the middle finger groove can restrict the position of the middle finger. The index finger groove ensures the straightness of the distal phalanx joint of the index finger, and the combination of the index finger groove, thumb groove, and middle finger groove ensures the fixed positional relationship of the thumb, index finger, and middle finger, thereby correcting the problem of incorrect pen grip posture when primary and secondary school students write.

[0005] The aforementioned corrective pen grip attaches to the pencil via a sleeve. When the pencil is writing, the writing surface of the pencil lead becomes increasingly rounded, resulting in thicker lines. The usual solution is to rotate the pencil to switch to a different writing surface until all four writing surfaces are thicker. However, due to the limitations of the index finger, thumb, and middle finger grooves on the pen grip, elementary school students cannot directly rotate the pencil by rotating the grip, nor can they rotate the pencil independently. This results in the pencil only being used on one writing surface at a time, increasing the number of times the pencil needs to be sharpened, leading to pencil waste and reduced learning efficiency. Alternatively, one could manually rotate the pencil to achieve multiple writing surfaces, but the range of motion during manual rotation is uncontrollable. Utility Model Content

[0006] To overcome the limitations of existing pencil grips, which have grooves for the index finger, thumb, and middle finger on the outer side, preventing elementary school students from directly rotating the pencil grip to turn it, and also preventing them from independently rotating the pencil, resulting in the pencil only being used on one writing surface, increasing the number of times the pencil needs to be sharpened, leading to pencil waste and low learning efficiency, or manually rotating the pencil to achieve multiple writing surfaces, but the range of manual rotation cannot be controlled, this utility model provides a rotating pencil grip.

[0007] The technical solution of this utility model is as follows:

[0008] A rotatable pencil grip includes a grip body, the grip body comprising:

[0009] A sleeve, the sleeve having a hollow interior forming a receiving cavity, and the inner sidewall of the sleeve having a plurality of continuous cam grooves;

[0010] Pen barrel fastening sleeve, the pen barrel fastening sleeve is disposed inside the sleeve, the pen barrel fastening sleeve is used to fit and lock the pencil;

[0011] A rotating tube is disposed inside the sleeve and is fastened to the pen barrel. A cam platform is provided on the outer wall of the rotating tube at the corresponding position of the cam groove. The cam platform moves along the trajectory of the cam groove so that the rotating tube drives the pencil to rotate axially inside the sleeve. A first guide tooth is provided at the end of the rotating tube.

[0012] The pressure rod has a second guide tooth at its bottom end, which is staggered from the first guide tooth. The pressure rod slides up and down along the track on the sleeve to drive the cam table on the rotating tube to move from one cam groove to an adjacent cam groove.

[0013] According to the above-described scheme of this utility model, the number of cam grooves is several, and each cam groove includes a first inclined surface and a second inclined surface. The inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface. One end of the first inclined surface and one end of the second inclined surface are connected and form a certain angle.

[0014] According to the present invention based on the above scheme, the number of cam platforms is at least one, and the inclination angle of the end face of the cam platform is consistent with the inclination angle of the second inclination surface.

[0015] According to the present invention based on the above scheme, the shape of the first guide saw tooth is the same as the shape of the second guide saw tooth, and the directions of the first guide saw tooth and the second guide saw tooth are opposite.

[0016] According to the present invention based on the above scheme, the inner sidewall of the sleeve is further provided with a sliding guide groove, and the outer sidewall of the pressure rod is provided with a slider, which slides up and down along the sliding guide groove.

[0017] According to the present utility model with the above-described solution, the pressure rod includes a circular tube portion disposed inside the sleeve, a pressing portion disposed outside the sleeve, and a connecting block connecting the circular tube portion and the pressing portion. The slider and the second guide saw teeth are both disposed on the circular tube portion, and the connecting block slides up and down along the track.

[0018] According to the above-described solution of this utility model, the pen grip body further includes a pen sleeve and an inner sleeve. The pen sleeve is connected to the sleeve through the inner sleeve, the sleeve is engaged with the inner sleeve, and the pen sleeve is engaged with the inner sleeve.

[0019] According to the above-described scheme of this utility model, an elastic element is provided between the rotating tube and the inner sleeve, and the elastic element is used to drive the rotating tube to reset.

[0020] According to the above-described solution of this utility model, the outer wall of the pen cap is provided with an index finger groove for placing the index finger, a thumb groove for placing the thumb, and a middle finger groove, wherein the index finger groove and the thumb groove are distributed front to back.

[0021] According to the present invention based on the above scheme, the top end of the sleeve is further provided with a top cover, which is engaged with the sleeve.

[0022] According to the above-described solution, the beneficial effect of this utility model is that, in a rotatable pencil grip, pressing the pressure rod causes it to move downwards along a track, and the rotating tube also moves downwards under the influence of the pressure rod. During the downward movement of the rotating tube, the cam platform of the rotating rod gradually disengages from its current cam groove. Because the second guide tooth at the bottom of the pressure rod and the first guide tooth at the top of the rotating rod are misaligned, the rotating rod rotates under the guidance of the second guide tooth after disengaging from its current cam groove, entering the next cam groove. Releasing the pressure rod causes the cam platform on the rotating tube to retract along the cam groove inside the sleeve under the action of the elastic element and continue its rotational motion, thus achieving a pressing and rotating action. The rotating tube is connected to a pencil barrel fastening sleeve, and the pencil, locked in the sleeve, rotates along with the rotating tube, realizing the rotation of the pencil during writing. In use, pressing the pencil causes it to rotate, which helps to evenly wear down the tip during writing, reducing the number of times the pencil needs to be sharpened, and also increases the fun of the grip. Attached Figure Description

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0025] Figure 3 This is an exploded view of the present invention;

[0026] Figure 4 for Figure 3 Cross-sectional view;

[0027] Figure 5 This is a structural schematic diagram of the sleeve portion of this utility model under perspective view;

[0028] Figure 6 for Figure 5 A magnified structural diagram of part A in the middle.

[0029] In the figure, the various attached figures are labeled as follows:

[0030] 100. Pen grip body; 10. Sleeve; 11. Receiving cavity; 12. Cam groove; 121. First inclined surface; 122. Second inclined surface; 13. Sliding guide groove; 14. Track; 20. Pen barrel fastening sleeve; 30. Rotating tube; 31. Cam platform; 32. First guide serration; 40. Pressure rod; 41. Second guide serration; 42. Slider; 43. Round tube part; 44. Pressing part; 45. Connecting block; 50. Pen cap; 51. Index finger groove; 52. Thumb groove; 53. Middle finger groove; 60. Inner sleeve; 70. Elastic element; 80. Top cover; 200. Pencil. Detailed Implementation

[0031] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. Terms such as "set up" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly defined. Terms such as "upper," "lower," "left," "right," "front," "rear," and "bottom" indicate orientations or positions based on the orientations or positions shown in the accompanying drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0033] It should be noted that Chinese patent CN206765645U discloses a pen grip corrector and a corrective pen, including a sleeve and an index finger groove, a thumb groove, and a middle finger groove located on the outer wall of the sleeve. The index finger groove is used to maintain the index finger's straight grip on the pen barrel, the thumb groove can restrict the position of the thumb, and the middle finger groove can restrict the position of the middle finger. The index finger groove ensures the straightness of the distal phalanx joint of the index finger, and the combination of the index finger groove, thumb groove, and middle finger groove ensures the fixed positional relationship of the thumb, index finger, and middle finger, thereby correcting the problem of incorrect pen grip posture when primary and secondary school students write.

[0034] The aforementioned corrective pen grip attaches to the pencil via a sleeve. When the pencil is writing, the writing surface of the pencil lead becomes increasingly rounded, resulting in thicker lines. The usual solution is to rotate the pencil to switch to a different writing surface until all four writing surfaces are thicker. However, due to the limitations of the index finger, thumb, and middle finger grooves on the pen grip, elementary school students cannot directly rotate the pencil by rotating the grip, nor can they rotate the pencil independently. This results in the pencil only being used on one writing surface at a time, increasing the number of times the pencil needs to be sharpened, leading to pencil waste and reduced learning efficiency. Alternatively, one could manually rotate the pencil to achieve multiple writing surfaces, but the range of motion during manual rotation is uncontrollable.

[0035] like Figures 1-6 As shown, this embodiment provides a rotatable pencil grip. When the pressure lever 40 is pressed, it moves downward along the track 14, and the rotating tube 30 also moves downward under the influence of the pressure lever 40. During the downward movement of the rotating tube 30, the cam platform 31 of the rotating rod gradually disengages from its current cam groove 12. Since the second guide tooth 41 at the bottom of the pressure lever 40 and the first guide tooth 32 at the top of the rotating rod are misaligned, the rotating rod will rotate under the guidance of the second guide tooth 41 after disengaging from its current cam groove 12, entering the next cam groove 12. The cam platform 31 on the rotating tube 30 continues to rotate along the cam groove 12 inside the sleeve 10, thereby realizing a pressing and rotating action. The rotating tube 30 is connected to the pen barrel fastening sleeve 20. The pencil 200 is locked in the pen barrel fastening sleeve 20 and will rotate together with the rotating tube 30, realizing the rotation of the pencil 200 during the writing process, improving the writing experience and efficiency, increasing the fun of writing, and also helping to wear the pencil tip evenly and extend the service life of the pencil 200.

[0036] Specifically, the grip for the rotatable pencil includes a grip body 100, which includes a sleeve 10, a barrel fastening sleeve 20, a rotating tube 30, and a pressure rod 40.

[0037] The sleeve 10 is hollow inside to form a receiving cavity 11. The inner side wall of the sleeve 10 is provided with several continuous cam grooves 12, which constitute the track basis for the rotational motion of the rotating tube 30.

[0038] The pen barrel fastening sleeve 20 is located inside the sleeve 10. The pen barrel fastening sleeve 20 is used to fit and lock the pencil 200. The pen barrel fastening sleeve 20 can ensure that the pencil 200 will not slip or loosen during use.

[0039] The rotating tube 30 is located inside the sleeve 10 and is connected to the pen barrel fastening sleeve 20 to ensure synchronous movement between the rotating tube 30 and the pen barrel fastening sleeve 20. The outer wall of the rotating tube 30 is provided with a cam platform 31 at the corresponding position of the cam groove 12. The cam platform 31 moves along the trajectory of the cam groove 12 so that the rotating tube 30 drives the pencil 200 to rotate axially inside the sleeve 10. The end of the rotating tube 30 is provided with a first guide tooth 32.

[0040] The bottom end of the pressure rod 40 is provided with a second guide saw tooth 41. The second guide saw tooth 41 is staggered with the first guide saw tooth 32. The pressure rod 40 slides up and down along the track 14 laid on the sleeve 10 to drive the cam table 31 on the rotating tube 30 to move from one cam groove 12 to an adjacent cam groove 12.

[0041] In one embodiment, there are several cam grooves 12, each including a first inclined surface 121 and a second inclined surface 122. The inclination angle of the first inclined surface 121 is smaller than that of the second inclined surface 122. One end of the first inclined surface 121 and one end of the second inclined surface 122 are connected and form a certain angle, ensuring the stability of the rotating tube 30 during movement. The difference in inclination angle also provides the necessary power and directional guidance for the rotation of the rotating tube 30. Specifically, there are four cam grooves 12. When the pressure rod 40 is pressed, the rotating tube 30 causes the pencil 200 to rotate by 90 degrees in one rotation.

[0042] Preferably, the inclination angle of the first inclined surface 121 is less than 15 degrees, and the initial position of the cam stage 31 is located at the angle between the first inclined surface 121 and the second inclined surface 122, with the first inclined surface 121 located to the left of the cam stage 31 and the second inclined surface 122 located to the right of the cam stage 31.

[0043] Therefore, as the pressure rod 40 moves downward, the rotating tube 30 moves downward accordingly. Under the action of the first inclined surface 121, the rotating tube 30 first moves downward along the first inclined surface 121. Since the inclination angle of the first inclined surface 121 is small (less than 15 degrees), the rotating tube 30 mainly moves downward during this stage, while the rotational motion is relatively weak. Only after the cam table 31 disengages from the currently located cam groove 12 will it rotate into the next adjacent cam groove 12 under the guidance of the second guide tooth 41, and continue to rotate under the action of the second inclined surface 122 in the next cam groove 12.

[0044] There is at least one cam stage 31, and the inclination angle of the end face of the cam stage 31 is the same as the inclination angle of the second inclination surface 122. The cam stage 31 enters the next adjacent cam groove 12. Since the inclination angle of the end face of the cam stage 31 is the same as the inclination angle of the second inclination surface 122, it continues to rotate under the action of the second inclination surface 122 in the next cam groove 12, and stabilizes at the angle between the first inclination surface 121 and the second inclination surface 122.

[0045] In one embodiment, the first guide tooth 32 has the same shape as the second guide tooth 41, and the first guide tooth 32 and the second guide tooth 41 are in opposite directions. Guided by the second guide tooth 41, the first guide tooth 32 rotates and enters the next adjacent cam groove 12.

[0046] In one embodiment, the inner wall of the sleeve 10 is further provided with a sliding guide groove 13, and the outer wall of the pressure rod 40 is provided with a slider 42, which slides up and down along the sliding guide groove 13. The design of the sliding guide groove 13 not only restricts the movement direction of the slider 42 (i.e., the pressure rod 40), but also enhances the overall structural stability and durability of the pen grip body 100.

[0047] In one embodiment, the pressure rod 40 includes a circular tube portion 43 disposed inside the sleeve 10, a pressing portion 44 disposed outside the sleeve 10, and a connecting block 45 connecting the circular tube portion 43 and the pressing portion 44. The slider 42 and the second guide saw teeth 41 are both disposed on the circular tube portion 43, and the connecting block 45 slides up and down along the track 14.

[0048] In one embodiment, the pen grip body 100 further includes a pen sleeve 50 and an inner sleeve 60. The pen sleeve 50 is connected to the sleeve 10 through the inner sleeve 60, and the sleeve 10 is snapped into the inner sleeve 60. The pen sleeve 50 is snapped into the inner sleeve 60.

[0049] An elastic element 70 is provided between the rotating tube 30 and the inner sleeve 60. The elastic element 70 is used to drive the rotating tube 30 to reset. Under the action of the elastic element 70, after the pressure rod 40 is released, the cam platform 31 of the rotating tube 30 continues to rotate along the cam groove 12 of the inner sidewall of the sleeve 10 until the cam platform 31 is located in the angle between the first inclined surface 121 and the second inclined surface 122.

[0050] The outer wall of the pen cap 50 is provided with an index finger groove 51, a thumb groove 52, and a middle finger groove 53, with the index finger groove 51 and thumb groove 52 distributed front and back. The index finger groove 51 is used to maintain the index finger's straight grip on the pen barrel, the thumb groove 52 can restrict the position of the thumb, and the middle finger groove 53 can restrict the position of the middle finger. The index finger groove 51 ensures the straightness of the distal phalanx joint of the index finger, and the combination of the index finger groove 51, thumb groove 52, and middle finger groove 53 ensures the fixed positional relationship of the thumb, index finger, and middle finger. This corrects the problem of incorrect pen grip posture when primary and secondary school students write, and thus improves various problems caused by incorrect pen grip posture, such as scoliosis, myopia, and cervical pain, which is conducive to maintaining a good pen grip posture.

[0051] In one embodiment, the top of the sleeve 10 is also provided with a top cover 80, which is snapped into the sleeve 10. The top cover 80 is provided to prevent the pressure rod 40, the rotating rod, the pen barrel fastening sleeve 20, etc. from disengaging from the sleeve 10.

[0052] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0053] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A rotatable pencil grip, characterized in that, Includes a pen grip body, the pen grip body comprising: A sleeve, the sleeve having a hollow interior forming a receiving cavity, and the inner sidewall of the sleeve having a plurality of continuous cam grooves; Pen barrel fastening sleeve, the pen barrel fastening sleeve is disposed inside the sleeve, the pen barrel fastening sleeve is used to fit and lock the pencil; A rotating tube is disposed inside the sleeve and is fastened to the pen barrel. A cam platform is provided on the outer wall of the rotating tube at the corresponding position of the cam groove. The cam platform moves along the trajectory of the cam groove so that the rotating tube drives the pencil to rotate axially inside the sleeve. A first guide tooth is provided at the end of the rotating tube. The pressure rod has a second guide tooth at its bottom end, which is staggered from the first guide tooth. The pressure rod slides up and down along the track on the sleeve to drive the cam table on the rotating tube to move from one cam groove to an adjacent cam groove.

2. The rotatable pencil grip according to claim 1, characterized in that, The number of cam grooves is several, and each cam groove includes a first inclined surface and a second inclined surface. The inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface. One end of the first inclined surface and one end of the second inclined surface are connected and form a certain angle.

3. The rotatable pencil grip according to claim 2, characterized in that, The number of cam stages is at least one, and the inclination angle of the end face of the cam stage is consistent with the inclination angle of the second inclination surface.

4. A rotatable pencil grip according to claim 1, 2, or 3, characterized in that, The shape of the first guide saw tooth is the same as that of the second guide saw tooth, and the directions of the first guide saw tooth and the second guide saw tooth are opposite.

5. A rotatable pencil grip according to claim 4, characterized in that, The inner wall of the sleeve is also provided with a sliding guide groove, and the outer wall of the pressure rod is provided with a slider, which slides up and down along the sliding guide groove.

6. A rotatable pencil grip according to claim 5, characterized in that, The pressure rod includes a circular tube portion inside the sleeve, a pressing portion outside the sleeve, and a connecting block connecting the circular tube portion and the pressing portion. The slider and the second guide saw teeth are both disposed on the circular tube portion, and the connecting block slides up and down along the track.

7. A rotatable pencil grip according to claim 1, characterized in that, The pen grip body also includes a pen sleeve and an inner sleeve. The pen sleeve is connected to the sleeve through the inner sleeve. The sleeve is engaged with the inner sleeve, and the pen sleeve is engaged with the inner sleeve.

8. A rotatable pencil grip according to claim 7, characterized in that, An elastic element is provided between the rotating tube and the inner sleeve, and the elastic element is used to drive the rotating tube to reset.

9. A rotatable pencil grip according to claim 7, characterized in that, The outer wall of the pen cap is provided with an index finger groove for placing the index finger, a thumb groove for placing the thumb, and a middle finger groove, with the index finger groove and the thumb groove distributed front and back.

10. A rotatable pencil grip according to claim 7, characterized in that, The top of the sleeve is also provided with a top cover, which is snapped into the sleeve.

Images