A writing and drawing device

Abstract

This application discloses a writing and drawing device, including a writing board and a support. Adapter seats are respectively provided on both sides of the writing board, each adapter seat having a connecting hole and a first toothed ring, the connecting hole being located at the center of the first toothed ring. The support has two support rods, each end of which has a first through hole and a second toothed ring, the first through hole being located at the center of the second toothed ring. The two second toothed rings respectively mesh with corresponding first toothed rings. One end of a connector passes through the through hole and connects to the corresponding connecting hole, the other end of the connector being confined within the support rod. Under external force, the first and second toothed rings rotate relative to each other, allowing the support to rotate relative to the writing board. When the external force is removed, the second and first toothed rings mesh, fixing the relative positions of the writing board and the support. The writing and drawing device provided in this application allows the support to rotate relative to the writing board when subjected to a large external force, preventing breakage of the support under sudden high pressure.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, specifically to a writing and drawing device. Background Technology

[0002] Toy drawing boards are easy to pick up and use, and the process of using and playing with them helps children's intellectual development and can cultivate their drawing and calligraphy skills. Therefore, they are loved by both children and parents.

[0003] Children easily tire when holding a drawing board while writing or drawing. Therefore, drawing boards often come with a stand. The stand on portable drawing boards is usually located on the back, and it's rotatably connected to the back panel. A limiting tooth is provided on the back panel, ensuring stability when the stand and board are in an obtuse-angle support position. However, children often have poor balance and are prone to tipping over when standing, sitting, or lying down. During a fall, they instinctively seek support. If a child is playing with the drawing board or falls near it, they will instinctively grip it, putting significant pressure on the board. If the stand is in the support position, this pressure will primarily be applied to the stand, making it prone to breakage.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To solve one of the above-mentioned technical problems, this utility model provides a writing and drawing device.

[0006] This application provides the following technical solution:

[0007] A writing and drawing device, comprising:

[0008] A drawing board, wherein adapters are provided on both sides of the drawing board, and the adapters are provided with connecting holes and a first toothed ring, wherein the connecting holes are located at the center of the first toothed ring;

[0009] The bracket has two support rods, each of which has a first through hole and a second toothed ring at its end, with the first through hole located at the center of the second toothed ring.

[0010] Two second toothed rings respectively mesh with corresponding first toothed rings, one end of the connector passes through the through hole and is connected to the corresponding connecting hole, and the other end of the connector is limited to the support rod;

[0011] Under the action of external force, the first toothed ring and the second toothed ring rotate relative to each other, and the bracket can rotate relative to the drawing board;

[0012] When the external force is removed, the second toothed ring and the first toothed ring mesh, and the drawing board and the bracket are fixed in relative position.

[0013] Optionally, the tops of the protruding teeth of the first and second toothed rings are both outwardly convex arc surfaces.

[0014] Optionally, the adapter is provided with a positioning boss, which is located at the center of the first toothed ring;

[0015] The connecting hole is formed on the positioning boss;

[0016] The end of the support rod is provided with a positioning groove, and the bottom wall of the positioning groove is provided with the first through hole;

[0017] With the bracket connected to the drawing board, the positioning boss is embedded in the positioning groove.

[0018] Optionally, the writing and drawing device includes a cap;

[0019] A second through hole is provided on the cap;

[0020] One end of the connector passes through the second through hole and the first through hole and is connected to the connecting hole, while the other end of the connector is confined to the cap.

[0021] Optionally, the writing and drawing device includes an elastic element;

[0022] The elastic element is sleeved on the connector, with one end of the elastic element abutting against the cap and the other end of the elastic element abutting against the support rod.

[0023] Optionally, a receiving groove is provided on the side of the support rod away from the adapter, and the bottom wall of the receiving groove has the first through hole.

[0024] The elastic element is located within the receiving groove, and the cap covers the receiving groove.

[0025] Optionally, the bottom wall of the receiving groove is provided with a boss portion;

[0026] An annular groove is formed between the protrusion and the peripheral sidewall of the receiving groove;

[0027] The first through hole is provided on the boss portion;

[0028] The elastic element is a spring, and one end of the elastic element is located in the annular groove.

[0029] Optionally, the writing and drawing device includes fasteners;

[0030] The adapter has a sliding groove, and the adapter is fitted onto the edge of the drawing board through the sliding groove;

[0031] One end of the fastener passes through the adapter and is threaded onto the drawing board.

[0032] Optionally, the support includes a crossbeam;

[0033] The crossbeam is located at the end of the support rod away from the adapter seat, and the two ends of the crossbeam are respectively connected to the two support rods.

[0034] Optionally, the writing and drawing device includes a writing pen and a pen holder;

[0035] The pen holder has a first C-shaped sleeve and a second C-shaped sleeve. The first C-shaped sleeve is fitted onto the crossbeam, and the writing pen is inserted into the second C-shaped sleeve.

[0036] By adopting the above technical solution, this application has the following beneficial effects:

[0037] The drawing and writing device provided in this application has a fixed support relative to the drawing board when the support is not under force or under a small force, ensuring stable support during the drawing and writing process. When the support is subjected to a larger external force, it will rotate relative to the drawing board. For example, when it is necessary to adjust the support angle of the drawing board, a larger force is applied to the support, causing it to rotate relative to the drawing board. Or, if a child accidentally presses the drawing board, the support will also be subjected to a larger force, causing the drawing board to rotate relative to the support. This rotation can be adjusted until the support and the drawing board are in the same plane, so that the support is no longer under force. In this way, the support can be prevented from breaking under sudden large pressure. Attached Figure Description

[0038] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0039] Figure 1 This diagram shows the structure of the writing and drawing device provided in an embodiment of the present invention;

[0040] Figure 2 This diagram shows a partially enlarged structural schematic of the adapter of the drawing and writing device provided in an embodiment of the present invention;

[0041] Figure 3 This diagram shows a partially enlarged exploded view of the adapter of the drawing device provided in an embodiment of the present invention.

[0042] Figure 4 This diagram shows a partially enlarged structural schematic of the second toothed ring of the support rod of the writing and drawing device provided in this embodiment of the present invention;

[0043] Figure 5This diagram shows the structural diagram of the writing pen and pen holder of the writing and drawing device provided in this embodiment of the present invention.

[0044] Figure 6 A schematic diagram of the pen holder structure of the writing and drawing device provided in an embodiment of this utility model is shown.

[0045] In the diagram: drawing board 1, bracket 2, support rod 21, first through hole 211, second toothed ring 212, positioning groove 213, receiving groove 214, boss 215, crossbeam 22, adapter 3, connecting hole 31, positioning boss 32, first toothed ring 33, sliding groove 34, connector 4, cap 5, elastic element 6, fastener 7, writing pen 8, pen holder 9, first C-type sleeve 91, second C-type sleeve 92, through groove 93. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0047] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] like Figures 1 to 6As shown in the figure, this application provides a writing and drawing device, including a writing board 1 and a support 2. Adapter seats 3 are respectively provided on both sides of the writing board 1. Each adapter seat 3 has a connecting hole 31 and a first toothed ring 33, with the connecting hole 31 located at the center of the first toothed ring 33. The support 2 has two support rods 21, each with a first through hole 211 and a second toothed ring 212 at its end. The first through hole 211 is located at the center of the second toothed ring 212. The two second toothed rings 212 respectively mesh with corresponding first toothed rings 33. One end of a connector 4 passes through the through hole and connects to the corresponding connecting hole 31, while the other end of the connector 4 is confined within the support rod 21. Under external force, the first toothed ring 33 and the second toothed ring 212 rotate relative to each other, allowing the support 2 to rotate relative to the writing board 1. When the external force is removed, the second toothed ring 212 and the first toothed ring 33 mesh, fixing the relative positions of the writing board 1 and the support 2.

[0050] The writing and drawing device provided in this application has a support 2 that is fixed relative to the writing board 1 when it is not subjected to force or is subjected to a small force, thus ensuring that the support 2 provides stable support to the writing board 1 during the writing and drawing process.

[0051] When subjected to a large external force, the support 2 will rotate relative to the drawing board 1. For example, when adjusting the support angle of the drawing board 1, a large force will be applied to the support 2, causing it to rotate relative to the drawing board 1. Or, if a child accidentally presses the drawing board 1 forcefully, the support 2 will also be subjected to a large force, causing the drawing board 1 to rotate relative to the support 2. This rotation can be adjusted until the support 2 and the drawing board 1 are in the same plane, thus relieving the support 2 of stress. In this way, the support 2 can be prevented from breaking under sudden large pressure.

[0052] The first toothed ring 33 is formed by a plurality of protruding teeth on the surface of the connector seat arranged in a series of intervals, or by a plurality of recessed grooves on the surface of the connector seat arranged in a series of intervals. The second toothed ring 212 is formed by a plurality of protruding teeth on the surface of the support 2 arranged in a series of intervals, or by a plurality of recessed grooves on the surface of the support 2 arranged in a series of intervals. When the support 2 rotates relative to the drawing board 1, the teeth of the first toothed ring 33 and the second toothed ring 212 switch between different teeth and then re-engage.

[0053] In some possible implementations, such as Figures 3 to 4 As shown, the first toothed ring 33 is formed by a plurality of protruding teeth that extend from the surface of the connecting seat and are arranged in a series of intervals. The second toothed ring 212 is formed by a plurality of protruding teeth that extend from the surface of the bracket 2 and are arranged in a series of intervals. The tops of the protruding teeth of the first toothed ring 33 and the second toothed ring 212 are both outwardly convex arc surfaces. The arc surface of the protruding teeth makes the switching between the teeth of the first toothed ring 33 and the teeth of the second toothed ring 212 smoother and also makes the protruding teeth less prone to damage.

[0054] In some possible implementations, such as Figure 3 As shown, the adapter 3 is provided with a positioning boss 32, which is located at the center of the first toothed ring 33. The connecting hole 31 is formed on the positioning boss 32. The end of the support rod 21 is provided with a positioning groove 213, and the bottom wall of the positioning groove 213 is provided with the first through hole 211. When the bracket 2 is connected to the drawing board 1, the positioning boss 32 is embedded in the positioning groove 213. The annular positioning boss 32 and the annular positioning groove 213 cooperate to ensure that the support rod 21 and the connecting seat are limited in the radial direction of the circle in which the support rod 21 rotates, to ensure that the support rod 21 will not slide relative to the drawing board 1, and to ensure stable meshing of the first toothed ring 33 and the second toothed ring 212.

[0055] In some possible implementations, the writing and drawing device includes a cap 5 with a second through hole. One end of a connector 4 passes through the second through hole and the first through hole 211 and is connected to the connecting hole 31. The other end of the connector 4 is confined to the cap 5. The connector 4 presses against the cap 5, and the cap 5 presses against the support 2, which consists of a first toothed ring 33 and a second toothed ring 212. The cap 5 prevents the connector 4 from pressing the support rod 21 too tightly, allowing for some elasticity. This makes it easier to change the mating teeth of the first toothed ring 33 and the second toothed ring 212, and ensures that the first toothed ring 33 and the second toothed ring 212 are locked in place after the external force is removed, thus ensuring stable positioning of the support rod 21 and the writing board 1.

[0056] In some possible implementations, the drawing and writing device includes an elastic element 6, which is sleeved on the connecting member 4. One end of the elastic element 6 abuts against the cap 5, and the other end abuts against the support rod 21. Thus, during installation, there can be a small gap between the cap 5 and the support rod 21. When an external force is applied to rotate the bracket 2 relative to the drawing board 1, the elastic element 6 is compressed and contracts when the protruding teeth of the first toothed ring 33 abut against the protruding teeth of the second toothed ring 212. This provides more space between the support rod 21 and the drawing board 1, making it easier to change the mating protruding teeth of the first toothed ring 33 and the second toothed ring 212. When the external force is removed, the support rod 21 is subjected to the pressure of the elastic element 6. The protruding teeth of the first toothed ring 33 will slide relative to the protruding teeth of the second toothed ring 212. The protruding teeth of the first toothed ring 33 and the groove of the second toothed ring 212 will cooperate, and the protruding teeth of the second toothed ring 212 and the groove of the first toothed ring 33 will cooperate. The first toothed ring 33 and the second toothed ring 212 will be locked together, and the support rod 21 and the drawing board 1 will be stably positioned.

[0057] In some possible implementations, the support rod 21 has a receiving groove 214 on the side opposite to the adapter 3. The bottom wall of the receiving groove 214 has the first through hole 211. The elastic element 6 is located inside the receiving groove 214, and the cap 5 covers the receiving groove 214. The elastic element 6 is set inside the receiving groove 214, and the receiving groove 214 is sealed by the cap 5 to ensure the stability of the elastic element 6 and to prevent water, dirt, etc. from contaminating the elastic element 6, thus ensuring the service life of the elastic element 6.

[0058] In some possible implementations, the bottom wall of the receiving groove 214 is provided with a boss 215, and an annular groove is formed between the boss 215 and the peripheral sidewall of the receiving groove 214. The boss 215 is provided with the first through hole 211, and the elastic element 6 is a spring, with one end of the elastic element 6 located within the annular groove. The inner walls of the boss 215 and the receiving groove 214 limit the elastic element 6 from its inner and outer sides, and the connecting member 4 passes through the center of the elastic element 6, ensuring that the elastic element 6 only compresses under pressure and does not tilt or bend, thus guaranteeing the effective pressure application of the elastic element 6.

[0059] In some possible implementations, the drawing and writing device includes a fastener 7, and the adapter 3 has a groove 34, which is fitted onto the edge of the drawing board 1. One end of the fastener 7 passes through the adapter 3 and is threaded to the drawing board 1, or one end of the fastener 7 passes through the adapter 3 and abuts against the side wall of the drawing board 1. The groove 34 engages with the edge of the drawing board 1, allowing the adapter 3 to be slidably installed and facilitating adjustment of the engagement position between the adapter 3 and the drawing board 1. Both sides of the edge of the drawing board 1 are provided with protruding slides, which are embedded in the groove 34, preventing the adapter 3 from easily disengaging from the drawing board 1.

[0060] In some possible implementations, such as Figure 1 As shown, the support 2 includes a crossbeam 22, located at the end of the support rod 21 facing away from the adapter 3, with two support rods 21 connected to each end of the crossbeam 22. The plane of rotation of the support 2 is perpendicular to the plane of the drawing board 1, and the crossbeam 22 is parallel to the drawing board 1. The two ends of the crossbeam 22 are connected to the ends of the support rods 21 facing away from the adapter 3, allowing the two support rods 21 to rotate synchronously without causing uneven rotation angles and support misalignment. When the support 2 rests on the support surface, the crossbeam 22 does not contact the support surface, while the ends of the two support rods 21 facing away from the adapter 3 contact the support surface. This design ensures that when the drawing board 1 is subjected to significant pressure, the support rods 21 can immediately rotate relative to the drawing board 1 under pressure.

[0061] In some possible implementations, such as Figures 5 to 6As shown, the writing and drawing device includes a writing pen 8 and a pen holder 9. The pen holder 9 has a first C-shaped sleeve 91 and a second C-shaped sleeve 92. The first C-shaped sleeve 91 is fitted onto the crossbeam 22, and the writing pen 8 is inserted into the second C-shaped sleeve 92. The writing pen 8 is conveniently located for easy access for writing and drawing, and the pen holder 9 connects the writing pen 8 and the crossbeam 22, reducing the possibility of the writing pen 8 being lost. When the bracket 2 is supported on the support surface, the crossbeam 22 does not contact the support surface, providing space for the pen holder 9 to engage.

[0062] In some possible implementations, a first C-shaped sleeve 91 forms a first snap-fit ​​space, and a second C-shaped sleeve 92 forms a second snap-fit ​​space. The first C-shaped sleeve 91 has a through slot 93 communicating with the first snap-fit ​​space, and the second C-shaped sleeve 92 also has a through slot 93 communicating with the second snap-fit ​​space. This improves the elasticity of the first C-shaped sleeve 91 and the second C-shaped sleeve 92, making the snap-fit ​​process smoother.

[0063] The preferred embodiments disclosed above are merely illustrative of this application. These preferred embodiments do not exhaustively describe all details, nor do they limit the application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A writing and drawing device, characterized in that, include: A drawing board, wherein adapters are provided on both sides of the drawing board, and the adapters are provided with connecting holes and a first toothed ring, wherein the connecting holes are located at the center of the first toothed ring; The bracket has two support rods, each of which has a first through hole and a second toothed ring at its end, with the first through hole located at the center of the second toothed ring. Two second toothed rings respectively mesh with corresponding first toothed rings, one end of the connector passes through the through hole and is connected to the corresponding connecting hole, and the other end of the connector is limited to the support rod; Under the action of external force, the first toothed ring and the second toothed ring rotate relative to each other, and the bracket can rotate relative to the drawing board; When the external force is removed, the second toothed ring and the first toothed ring mesh, and the drawing board and the bracket are fixed in relative position.

2. The writing and drawing device according to claim 1, characterized in that, The tops of the protruding teeth of both the first and second toothed rings are convex arc surfaces.

3. The writing and drawing device according to claim 1, characterized in that, The adapter is provided with a positioning boss, which is located at the center of the first toothed ring; The connecting hole is formed on the positioning boss; The end of the support rod is provided with a positioning groove, and the bottom wall of the positioning groove is provided with the first through hole; With the bracket connected to the drawing board, the positioning boss is embedded in the positioning groove.

4. The writing and drawing device according to claim 1, characterized in that, Including caps; A second through hole is provided on the cap; One end of the connector passes through the second through hole and the first through hole and is connected to the connecting hole, while the other end of the connector is confined to the cap.

5. The writing and drawing device according to claim 4, characterized in that, Including elastic components; The elastic element is sleeved on the connector, with one end of the elastic element abutting against the cap and the other end of the elastic element abutting against the support rod.

6. The writing and drawing device according to claim 5, characterized in that, The support rod is provided with a receiving groove on the side away from the adapter seat, and the bottom wall of the receiving groove is provided with the first through hole; The elastic element is located within the receiving groove, and the cap covers the receiving groove.

7. The writing and drawing device according to claim 6, characterized in that, The bottom wall of the receiving groove is provided with a boss; An annular groove is formed between the protrusion and the peripheral sidewall of the receiving groove; The first through hole is provided on the boss portion; The elastic element is a spring, and one end of the elastic element is located in the annular groove.

8. The writing and drawing device according to claim 1, characterized in that, Including fasteners; The adapter has a groove, and the adapter is fitted onto the edge of the drawing board through the groove; One end of the fastener passes through the adapter and is threaded onto the drawing board.

9. The writing and drawing device according to claim 1, characterized in that, The support includes a crossbeam; The crossbeam is located at the end of the support rod away from the adapter seat, and the two ends of the crossbeam are respectively connected to the two support rods.

10. The writing and drawing device according to claim 9, characterized in that, Including writing pens and pen holders; The pen holder has a first C-shaped sleeve and a second C-shaped sleeve. The first C-shaped sleeve is fitted onto the crossbeam, and the writing pen is inserted into the second C-shaped sleeve.

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