Learning base plate capable of supporting elbow

Abstract

A learning base plate capable of supporting the elbow comprises a base plate body. The supporting assembly is connected with the base plate body and suitable for adjusting the height of the base plate body far away from the user; the elbow support assembly is rotationally connected with the base plate body and located at the end close to the user. According to the learning base plate capable of supporting the elbow, the elbow supporting assembly is arranged at the front end of the base plate body in a rotating connection mode, so that when different inclination angles of the bearing face on the base plate body are adjusted through the supporting assembly, the elbow supporting assembly is not affected, the good elbow supporting function is always achieved, and hand fatigue is relieved; furthermore, by adjusting the inclination angle of the bearing surface, the purpose of providing the inclination angle of the bearing surface for personalized selection is achieved, and a reading and writing angle more suitable for the user is formed, so that the vision of the user is more effectively protected, and meanwhile, the probability of poor body types such as humpback caused by head lowering is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of learning aids, specifically to a learning mat that can support the elbow. Background Technology

[0002] A study mat is a reading and writing aid that is placed on a desktop.

[0003] However, most of the study mats currently on the market have a fixed angle between their reading and writing surfaces and the desktop, such as 0 degrees or other fixed angles; in addition, the elbows being suspended in the air for a long time during the study process can also cause hand fatigue.

[0004] Therefore, there is a need to provide a learning mat that can support the elbow. Summary of the Invention

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An elbow-supported study mat includes a mat body 1 having a reference surface 12 facing the desktop and a support surface 11 for the user to read and write; a support assembly 3 connected to the mat body 1 and adapted to adjust the height of the mat body 1 away from the user, so that the support surface 11 has different tilt angles relative to the desktop; and an elbow support assembly 2 rotatably connected to the mat body 1 and located at the end closer to the user.

[0007] Furthermore, a first assembly block 14 or a first assembly groove 15 is provided on the pad body 1; a second assembly block 22 is provided on the elbow support assembly 2; the first assembly block 14 or the first assembly groove 15 and the second assembly block 22 are rotatably connected by a rotating shaft 4.

[0008] Furthermore, multiple first assembly blocks 14 are provided, which are distributed sequentially at intervals on the pad body 1, and a first assembly groove 15 is formed between two adjacent first assembly blocks 14; multiple second assembly blocks 22 are provided, which are distributed sequentially at intervals on the elbow support assembly 2, and a second assembly groove 23 is formed between two adjacent second assembly blocks 22; at least one first assembly block 14 is connected to a second assembly groove 23 through a rotating shaft 4, and at least one second assembly block 22 is connected to a first assembly groove 15 through a rotating shaft 4, thereby forming a staggered assembly between the first assembly block 14 and the second assembly block 22.

[0009] Furthermore, both the first assembly block 14 and the second assembly block 22 protrude from the supporting surface 11; the first assembly groove 15 is provided with a first clearance groove 17 suitable for avoiding the second assembly block 22; and the second assembly groove 23 is provided with a second clearance groove 25 suitable for avoiding the first assembly block 14.

[0010] Furthermore, the elbow support assembly 2 is provided with a first functional protrusion 24, located on the side facing the tabletop.

[0011] Furthermore, a second functional protrusion 16 is provided on the pad body 1; the second functional protrusion 16 is positioned corresponding to the first functional protrusion 24, and the two work together to restrict the elbow support assembly 2 from rotating toward the reference surface 12.

[0012] Furthermore, a limiting edge 21 extends from the elbow support assembly 2 toward the reference surface 12, located at the end away from the pad body 1, and is suitable for engaging with the edge of the table.

[0013] Furthermore, the support assembly 3 includes a support foot 30; the support foot 30 is provided with a first connecting portion 32, and the pad body 1 is provided with a second connecting portion 13 that rotatably engages with the first connecting portion 32; the support foot 30 is provided in one of the following three ways:

[0014] Option 1: The support foot 30 is provided in multiple sets, and the length of each set of support foot 30 is different. The support foot 30 is rotatably connected to the second connecting part 13.

[0015] Option 2: The support foot 30 is rotatably connected to the second connecting part 13 through an angle adjustment mechanism 31. The angle adjustment mechanism 31 is adapted to lock or release the angle between the support foot 30 and the pad body 1.

[0016] Option 3: The support leg 30 is a rod with adjustable length.

[0017] In one embodiment, the angle adjustment mechanism 31 includes a connector 312, an operating member 311, a first positioning part 314, and a second positioning part 313. One end of the connector 312 is connected to the first connecting part 32, and the other end passes through the second connecting part 33 and is connected to the operating member 311; or one end of the connector 312 is connected to the second connecting part 13, and the other end passes through the first connecting part 32 and is connected to the operating member 311. The first positioning part 314 includes a plurality of first positioning teeth and is disposed on the first connecting part 32. The second positioning part 313 includes a plurality of second positioning teeth that cooperate with the first positioning teeth and is disposed on the second connecting part 13. After rotating the operating member 311 to a predetermined stroke, the first positioning part 314 and the second positioning part 313 can be engaged, restricting rotation between the first connecting part 32 and the second connecting part 13, thereby locking or releasing the angle between the support foot 30 and the pad body 1.

[0018] In another embodiment, the support foot 30 includes a locking member, a return spring, and at least two support sections, with adjacent support sections sequentially sleeved together. A plurality of positioning teeth are provided on the outer wall of the sleeved support section, distributed along the direction of length adjustment of the support foot 30. The locking member is rotatably connected to the outer wall of the sleeved support section. One end of the locking member is provided with a positioning block that engages with the positioning teeth. The return spring is connected to the other end of the locking member and is adapted to keep the positioning block engaged with the positioning teeth.

[0019] This utility model discloses a study mat with elbow support. By rotating the elbow support assembly at the front end of the mat body, the elbow support assembly remains unaffected when the support surface on the mat body is adjusted at different angles through the support assembly, thus always providing good elbow support and relieving hand fatigue. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the elbow-supportable learning mat support assembly disclosed in Embodiment 1 of this utility model when no support is formed.

[0022] Figure 2 This is a schematic diagram of the structure of the elbow-supportable learning pad support assembly in Embodiment 1 when it forms a support.

[0023] Figure 3 for Figure 2 A schematic diagram of the structure in an explosion.

[0024] Figure 4 for Figure 3 A structural diagram from another perspective.

[0025] Figure 5 This is a partially enlarged structural diagram of the connection between the elbow support assembly and the pad body.

[0026] Figure 6 This is a schematic diagram of the second connecting part.

[0027] Figure 7 This is a schematic diagram of the structure of the first connecting part.

[0028] Figure 8 This is a structural schematic diagram of the operating component.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Pad body; 11. Supporting surface; 12. Reference surface; 13. Second connecting part; 14. First assembly block; 15. First assembly groove; 16. Second functional protrusion; 17. First clearance groove; 131. Hinge seat; 132. First limiting ring; 133. Second limiting ring; 134. Second stop part;

[0031] 2. Elbow support assembly; 21. Limiting edge; 22. Second assembly block; 23. Second assembly groove; 24. First functional protrusion; 25. Second clearance groove;

[0032] 3. Support assembly; 30. Support foot; 301. Center rod; 302. End rod; 31. Angle adjustment mechanism; 311. Operating component; 312. Connecting component; 313. Second positioning part; 314. First positioning part; 3111. Distal point; 3112. Proximal point; 32. First connecting part; 321. Cap ring; 322. Connecting post; 323. Assembly hole; 324. First stop part;

[0033] 4. Shaft. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting this invention.

[0035] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature; "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] Terms such as “installation,” “connection,” “linking,” and “fixing” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components, unless otherwise explicitly defined.

[0037] Terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These are used solely for the purpose of describing the technical solutions of this invention and do not imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. For example, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium; "above," "on top," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature; "below," "under," and "below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0039] This invention provides a study mat with elbow support, comprising a mat body 1 having a reference surface 12 facing the desktop and a support surface 11 for the user to read and write on; a support assembly 3 connected to the mat body 1, adapted to adjust the height of the end of the mat body 1 away from the user, thereby allowing the support surface 11 to have different tilt angles relative to the desktop; and an elbow support assembly 2 rotatably connected to the mat body 1, located at the end closer to the user. The user can change the angle between the desktop and the mat body 1 using the support assembly 3, customizing the tilt angle of the support surface 11 relative to the desktop to suit different user body types or preferences. Simultaneously, by rotatably connecting the elbow support assembly 2 to the mat body, the elbow support assembly 2 remains unaffected when adjusting the tilt angle of the support surface 11 on the mat body 1 using the support assembly 3, always providing good elbow support and relieving hand fatigue.

[0040] Specifically, the pad body 1 is provided with a first assembly block 14 or a first assembly groove 15; the elbow support assembly 2 is provided with a second assembly block 22; the first assembly block 14 or assembly groove and the second assembly block 22 are rotatably connected through a rotating shaft 4, thereby realizing the rotatable connection between the elbow support assembly 2 and the pad body 1. For example, one or more first assembly grooves 15 are provided on the pad body 1, and a corresponding number of second assembly blocks 22 are provided on the elbow support assembly 2, and the second assembly blocks 22 are connected to the first assembly grooves 15 through a rotating shaft 4; as another example, in Embodiment 1, multiple first assembly blocks 14 are provided on the pad body 1, and multiple second assembly blocks 22 are provided on the elbow support assembly 2, the first assembly blocks 14 and the second assembly blocks 22 are staggered and connected together through a rotating shaft 4, thereby realizing the rotatable connection between the elbow support assembly 2 and the pad body 1.

[0041] The elbow support assembly 2 can be a single piece, such as in Embodiment 1, where the left elbow support and the right elbow support are integrally formed to form the shape of a single panel; or it can be separate pieces, such as the left elbow support and the right elbow support being separately set and connected to the pad body 1 respectively.

[0042] Support assembly 3 includes support foot 30; support foot 30 is provided with a first connecting part 32, and the pad body 1 is provided with a second connecting part 13 that rotatably engages with the first connecting part 32, preferably the second connecting part 13 is located at the end away from the user; support foot 30 is provided in one of the following three ways:

[0043] Option 1: Multiple sets of support feet 30 are provided, each set of support feet 30 has a different length, and the support feet 30 are rotatably connected to the second connecting part 13;

[0044] Option 2: The support foot 30 is rotatably connected to the second connecting part 13 through the angle adjustment mechanism 31. The angle adjustment mechanism 31 is adapted to lock or release the angle between the support foot 30 and the pad body 1.

[0045] Option 3: The support leg 30 is an adjustable length rod.

[0046] In Scheme 1, by selecting support legs 30 of different lengths, different tilt angles of the pad body 1 relative to the table can be obtained, thereby adjusting the tilt angle of the supporting surface 11. For example, three sets of support legs 30 with progressively increasing lengths are set. Each set of support legs 30 includes two support legs 30, which are respectively connected to the two sides of the pad body 1. When a supporting surface 11 with a different tilt is required, the support legs 30 of the corresponding length are rotated to a setting that supports the pad body 1 at an angle, so that the support legs 30 of the other sets can remain in contact with the pad body 1 or swing freely.

[0047] In Scheme 2, the angle adjustment mechanism 31 includes a connector 312 and an operating member 311. For example, one end of the connector 312 is connected to the first connecting part 32, and the other end passes through the second connecting part 13 and is connected to the operating member 311. Alternatively, one end of the connector 312 is connected to the second connecting part 13, and the other end passes through the first connecting part 32 and is connected to the operating member 311. Rotating the operating member 311 can cause the first connecting part 32 and the second connecting part 13 to abut against each other or release from abutment, thereby locking or releasing the angle between the support foot 30 and the pad body 1. For example, one end of the connector 312 away from the operating member 311 is fixedly connected to the first connecting part 32 or the second connecting part 13, or one end of the connector 312 away from the operating member 311 has a limiting end, and the other end passes through the first connecting part 32 and the second connecting part 13 and is connected to the operating member 311; rotating the operating member 311 can cause the first connecting part 32 and the second connecting part 13 to abut against each other or to release abutment, thereby fixing or releasing the angle between the support foot 30 and the pad body 1. In some embodiments, such as Embodiment 1, a first positioning part 314 and a second positioning part 313 are provided between the first connecting part 32 and the second connecting part 13. After the operating member 311 forces the first connecting part 32 and the second connecting part 13 to abut against each other, the locking and limiting action between the first positioning part 314 and the second positioning part 313 locks the angle between the support foot 30 and the pad body 1.

[0048] In Scheme 3, the tilt angle of the pad body 1 relative to the tabletop is adjusted by changing the length of the support leg 30, thus adjusting the tilt angle of the supporting surface 11. For example, the support leg 30 is an adjustable telescopic component.

[0049] Example 1

[0050] The following explanation uses a learning pad with a support foot 30, a snap-fit ​​limit, and an operating element 311 as a lever as an example.

[0051] like Figure 1-8 As shown, a learning pad with elbow support includes a pad body 1, a support assembly 3, and an elbow support assembly 2.

[0052] The support assembly 3 includes a pair of support legs 30. A first connecting part 32 is provided at one end of the support leg 30. Correspondingly, a second connecting part 13 is provided on both sides of the pad body 1. The first connecting part 32 is rotatably connected to the second connecting part 13.

[0053] Multiple first assembly blocks 14 are provided and are distributed sequentially at intervals on the pad body 1, and a first assembly groove 15 is formed between two adjacent first assembly blocks 14; multiple second assembly blocks 22 are provided and are distributed sequentially at intervals on the elbow support assembly 2, and a second assembly groove 23 is formed between two adjacent second assembly blocks 22; at least one first assembly block 14 is connected to a second assembly groove 23 through a pivot 4, and at least one second assembly block 22 is connected to a first assembly groove 15 through a pivot 4, so that the first assembly blocks 14 and the second assembly blocks 22 form a staggered assembly, thereby making the rotational connection between the elbow support assembly 2 and the pad body 1 composed of multiple hinges, improving the stability of the product structure.

[0054] In this embodiment, four first assembly blocks 14 are provided, and three first assembly slots 15 are formed between the four first assembly blocks 14; three second assembly blocks 22 are provided, and two second assembly slots 23 are formed between the three second assembly blocks 22; during installation, all the second assembly blocks 22 are connected to the first assembly slots 15, and only the two middle first assembly blocks 14 are connected to the second assembly slots 23, while the two outermost first assembly blocks 14 are connected to the outermost ends of the three second assembly blocks 22.

[0055] Preferably, the pivots 4 of all the first assembly blocks 14 and the second assembly blocks 22 are located on the same straight line; in this embodiment, all the first assembly blocks 14 and the second assembly blocks 22 are connected together by a pivot 4.

[0056] Furthermore, both the first assembly block 14 and the second assembly block 22 protrude from the support surface 11 to form a blocking strip, which is suitable for preventing items such as books or pens from sliding off the support surface 11.

[0057] The first assembly slot 15 is provided with a first clearance slot 17 suitable for avoiding the second assembly block 22; the second assembly slot 23 is provided with a second clearance slot 25 suitable for avoiding the first assembly block 14. One of the purposes is to make the rotational connection structure between the elbow support assembly 2 and the pad body 1 more compact.

[0058] Preferably, the first assembly block 14 and the second assembly block 22 are both generally cylindrical in shape, and the cross-sections of the first clearance groove 17 and the second clearance groove 25 are both fan-shaped and adapted to the above-mentioned cylindrical shape, thereby improving the structural compactness and the smoothness of rotation.

[0059] Furthermore, the elbow support assembly 2 is provided with a first functional protrusion 24, located on the side facing the table, the purpose of which is to increase the structural strength of the elbow support assembly 2 and improve the service life of the product.

[0060] Furthermore, a second functional protrusion 16 is provided on the main body 1 of the pad. The second functional protrusion 16 is positioned corresponding to the first functional protrusion 24. The two work together to restrict the elbow support assembly 2 from rotating toward the reference surface 12. Specifically, the first functional protrusion 24 and the second functional protrusion 16 are aligned. When the main body 1 of the pad is in the closest contact with the tabletop, that is, when the inclination angle of the support surface 11 is the smallest, the end faces of the first functional protrusion 24 and the second functional protrusion 16 abut against each other, thereby restricting the elbow support assembly 2 from rotating excessively and causing damage to the rotating structure.

[0061] Furthermore, a limiting edge 21 extends from the elbow support assembly 2 toward the reference surface 12, located at the end away from the pad body 1, which is suitable for cooperating with the edge of the desktop. One purpose is to eliminate the need to spend time deliberately aligning with the edge of the desktop when using the learning pad created by the present invention, thereby improving efficiency. In addition, it can also limit the poor user experience caused by the learning pad moving into the depth of the desktop.

[0062] The angle adjustment mechanism 31 includes a connector 312, an operating component 311, a first positioning part 314, and a second positioning part 313; one end of the connector 312 is connected to the first connecting part 32, and the other end passes through the second connecting part 13 and is connected to the operating component 311, or one end of the connector 312 is connected to the second connecting part 13, and the other end passes through the first connecting part 32 and is connected to the operating component 311.

[0063] The first positioning part 314 includes a plurality of first positioning teeth, which are distributed in a circle on the first connecting part 32; the second positioning part 313 includes a plurality of second positioning teeth that cooperate with the first positioning teeth, which are disposed on the second connecting part 13; after rotating the operating member 311 to a predetermined stroke, the first positioning part 314 and the second positioning part 313 can be engaged, restricting the rotation between the first connecting part 32 and the second connecting part 13, thereby locking or releasing the angle between the support foot 30 and the pad body 1.

[0064] In this embodiment, preferably, the support foot 30 includes two end rods 302 and a middle rod 301. The two ends of the middle rod 301 are respectively connected to one end of one end rod 302. A first connecting portion 32 is provided at the other end of each end rod 302. Second connecting portions 13 are provided on both sides of the pad body 1, each rotatably engaging with one of the first connecting portions 32. The two end rods 302 and the middle rod 301 constituting the support foot 30 are connected sequentially to form an n-shaped structure, allowing the two end rods 302 to be adjusted synchronously, improving angle adjustment efficiency and forming a more stable support, thus achieving a better user experience. In other embodiments, the middle rod 301 may be omitted, and only one support end rod 302 may be rotatably connected to each side of the pad body 1.

[0065] A first connecting portion 32 is provided at the end of the middle rod 301, which is away from the two end rods 302. Preferably, a second connecting portion 13 is provided on the left and right sides of the pad body 1, and each second connecting portion 13 is rotatably engaged with a first connecting portion 32, so that the support foot 30 is rotatably mounted on the pad body 1. When it is necessary to adjust the tilt angle of the supporting surface 11, the support foot 30 is rotated to be angled to the pad body 1. When not in use, the support foot 30 can be stacked with the pad body 1, reducing the space occupied by the elbow-support learning pad of the present invention and enriching the application scenarios of the product.

[0066] Preferably, the positions of the two second connecting parts 13 are both located between the two first connecting parts 32, that is, the first connecting parts 32 are assembled on the outside of the second connecting parts 13, so as to reduce the space occupied by the supporting surface 11.

[0067] Furthermore, the second connecting part 13 is detachably connected to the main body of the pad body 1. The pad body 1 is provided with an end connector, and the second connecting part 13 is provided with a connection opening, into which the end connector is inserted. In this embodiment, the second connecting part 13 is detachably connected to the pad body 1 via a hinge seat 131, and the connection opening is located at the lower end of the hinge seat 131.

[0068] Preferably, a raised annular retaining edge is provided in the connecting opening, and a retaining groove is provided in the middle of the end connector. The retaining edge is inserted into the retaining groove, thereby cooperating with the connecting opening and the end connector to form a double-insertion combination, ensuring the connection stability between the second connecting part 13 and the pad body 1. Preferably, the connecting opening and the end connector are further fixed by screws. In some other embodiments, the second connecting part 13 is integrally formed with the pad body 1.

[0069] Correspondingly, the angle adjustment mechanism 31 is provided in two sets, which are respectively connected to a set distributed on the left and right sides, and a combination formed by the first connecting part 32 and the second connecting part 13.

[0070] In this embodiment, a shaft hole (assembly hole 323) is specifically provided on the first connecting part 32. One end of the connector 312 is fixedly connected to the second connecting part 13, and the other end passes through the shaft hole and connects to the operating part 311. This allows the operating part 311 to be located on the outside of the pad body 1, facilitating operation of the operating part 311, reducing interference from the end rod 302, and thus optimizing the user experience. In some less effective embodiments, the connector 312 can be fixedly connected to the first connecting part 32, and a shaft hole can be provided on the second connecting part 13. The connector 312 passes through the shaft hole and connects to the operating part 311.

[0071] In other embodiments, a shaft hole is provided on the first connecting part 32 and the second connecting part 13 respectively. A limiting end is provided at one end of the connector 312, and the other end passes through the shaft holes of the first connecting part 32 and the second connecting part 13 in sequence and is connected to the operating part 311. Alternatively, the other end passes through the holes of the second connecting part 13 and the first connecting part 32 in sequence and is connected to the operating part 311. The limiting end and the operating part 311 are located on the two outer sides of the combination of the first connecting part 32 and the second connecting part 13 respectively. Thus, when the operating part 311 is rotated, the first connecting part 32 and the second connecting part 13 are forced to abut against each other under the combined action of the operating part 311 and the limiting end of the connector 312.

[0072] The first positioning part 314 is connected to the first connecting part 32, and the second positioning part 313 is connected to the second connecting part 13. The first positioning part 314 and the second positioning part 313 are preferably meshing toothed structures. The first positioning part 314 includes a plurality of first positioning teeth, which are distributed in a circular pattern on the first connecting part 32; the second positioning part 313 includes a plurality of second positioning teeth that cooperate with the first positioning teeth; preferably, the first positioning teeth and the second positioning teeth are both involute teeth.

[0073] In this embodiment, the first positioning tooth is preferably located on the end face of the first connecting part 32, and the second positioning tooth is located on the end face of the second connecting part 13, both having a toothed disc structure. Specifically, the first positioning tooth is located at the bottom of the cap of the first connecting part 32, circumferentially distributed between the connector 312 and the cap ring 321, and distributed in a circular shape. The second positioning tooth is located on the end face of the second limiting ring 133 near the first connecting part 32. After the rotation operation releases the angle lock, the support foot 30 can be directly rotated to adjust to the expected angle, and then the operating member 311 can be rotated in the opposite direction to fix the angle between the support foot 30 and the pad body 1. In other embodiments, the first positioning tooth can be distributed on the outer wall of the connector 312, and the second positioning tooth is distributed on the inner wall of the second limiting ring 133.

[0074] Furthermore, the second connecting part 13 includes a hinge seat 131; the hinge seat 131 is connected to the pad body 1 and is located on one side of the supporting surface 11, one side of the reference surface 12, or on the side between the supporting surface 11 and the reference surface 12; the aforementioned second positioning part 313 is disposed on the hinge seat 131. In this embodiment, the hinge seat 131 is located on one side of the supporting surface 11, which facilitates observation and operation of the operating component 311, thereby forming a visual distribution presentation of operation and optimizing the user experience of the product.

[0075] In this embodiment, the rotational engagement between the first connecting portion 32 and the second connecting portion 13 is achieved through a hinge shaft and a shaft groove. Specifically, a second annular limiting ring 133 extends from the second connecting portion 13 on the hinge seat 131 toward the first connecting portion 32, and a shaft groove is formed on the inner side of the second limiting ring 133; a cylindrical connecting post 322 extends from the first connecting portion 32 toward the second connecting portion 13, serving as a hinge shaft, and the connecting post 322 is fitted into a shaft hole formed on the side of the second limiting ring 133.

[0076] In this embodiment, the connector 312 is fixedly connected to the second connecting part 13 of the hinge seat 131; an assembly hole 323 is provided in the connecting post 322; the connector 312 passes through the assembly hole 323 and is connected to the operating member 311; the connector 312 can be slidably disposed or movably disposed in the assembly hole 323 in the axial direction. In this embodiment, the connector 312 can also rotate in the assembly hole 323.

[0077] Preferably, the axis of rotational engagement between the first connecting part 32 and the second connecting part 13 is concentrically arranged with the connecting member 312.

[0078] In this embodiment, the rotation between the first connecting part 32 and the second connecting part 13 is achieved by the hinged combination of the connecting member 312 and the connecting column 322, and the hinged combination of the second limiting ring 133 and the connecting column 322. The two sets of hinged structures are combined to achieve the rotational connection. One of the purposes is to further improve the structural stability of the rotation between the support foot 30 and the pad body 1.

[0079] In some other embodiments, the rotational engagement between the first connecting part 32 and the second connecting part 13 is achieved by a hinge shaft. The hinge shaft and the connector 312 are integrated into one unit. For example, the connector 312 is fixed to the first connecting part 32, and a shaft connection hole is provided on the second connecting part 13. The connector 312 passes through the shaft connection hole and connects to the operating member 311. At this time, the connector 312 is both a pivot for realizing the rotational connection between the first connecting part 32 and the second connecting part 13, and a component that cooperates with the operating member 311 to achieve angle fixation.

[0080] Furthermore, a first annular limiting ring 132 extends from the hinge seat 131 toward the first connecting portion 32 and is distributed circumferentially along the connector 312; a cap ring 321 that mates with the first limiting ring 132 is provided at the first connecting portion 32. The centers of the first limiting ring 132 and the cap ring 321 are concentrically arranged with the rotation of the first connecting portion 32 and the second connecting portion 13, in order to further increase the stability of the rotational function.

[0081] Furthermore, the cap ring 321 is assembled on the outer periphery of the first limiting skirt ring, and the connecting post 322 is assembled on the inner side of the second limiting ring 133, so that the first limiting ring 132 and the second limiting ring 133 are both located between the cap ring 321 and the connecting post 322, thereby increasing the stability of the product structure.

[0082] Furthermore, a first stop 324 is provided at the first connecting portion 32, located between the cap ring 321 and the connecting post 322, preferably two first stop 324s are provided; a second stop 134 is provided between the hinge seats 131, located between the first limiting ring 132 and the second limiting ring 133, preferably the second stop 134 is fan-shaped; after the first connecting portion 32 rotates by a predetermined angle, the rotation of the first stop 324 is interfered with by the second stop 134, braking the rotation between the support foot 30 and the pad body 1, thereby keeping the support foot 30 at the predetermined angle. The predetermined angle is preferably the middle rod 301 of the support foot 30, which is in contact with the far edge of the pad body 1.

[0083] Preferably, the tilt angle of the support surface 11 relative to the tabletop ranges from 0 to 15 degrees, 3 to 12 degrees, or 5 to 18 degrees. In this embodiment, the tilt angle of the support surface 11 relative to the tabletop ranges from 0 to 15 degrees. At the initial angle, the middle rod 301 of the support leg 30 is in contact with the far edge of the pad body 1. At this time, the tilt angle of the support surface 11 is 0 degrees, and the reference surface 12 is in contact with the tabletop.

[0084] Furthermore, the angle adjustment mechanism 31 also includes an elastic element connected between the first connecting portion 32 and the second connecting portion 13, adapted to tend to move the first connecting portion 32 away from the second connecting portion 13.

[0085] When the actuating element 311 releases the abutment between the first connecting part 32 and the second connecting part 13, the elastic element causes the first positioning part 314 and the second positioning part 313 to separate, that is, the first positioning tooth and the second positioning tooth separate more quickly, thereby improving the adjustment efficiency. In this embodiment, the elastic element is preferably a compression spring, with its two ends abutting against the connecting post 322 of the first connecting part 32 and the bottom wall of the shaft groove formed by the second limiting ring 133 on the second connecting part 13, respectively.

[0086] In this embodiment, the operating member 311 is a lever with an eccentric end. The eccentric end is rotatably connected to the connecting member 312. Rotating the end of the operating member 311 away from the eccentric end to the first position causes the eccentric end to press against the first connecting part 32. That is, the distal point 3111 of the eccentric end contacts the first connecting part 32, causing it to move closer to the second connecting part 13. At the same time, the connecting member 312, driven by the eccentric end, drives the second connecting part 13 to move closer to the first connecting part 32, thereby causing the first connecting part 32 and the second connecting part 13 to abut against each other. The first positioning part 314 and the second positioning part 313 engage, locking the angle between the support foot 30 and the pad body 1.

[0087] Rotating the operating component 311 to the second position eliminates or reduces the pressure on the first connecting part 32 from the eccentric end. That is, the proximal point 3112 corresponding to the eccentric end contacts the first connecting part 32, and the force of the first connecting part 32 and the second connecting part 13 squeezing each other disappears or weakens, thereby releasing the state of mutual abutment between the first connecting part 32 and the second connecting part 13. The first positioning part 314 and the second positioning part 313 separate, and the angle between the locking support foot 30 and the pad body 1 is released. Then, rotate and adjust the support foot 30. After rotating to the expected angle, rotate the operating component 311 to the first position again to fix the angle between the support foot 30 and the pad body 1, thus completing the angle adjustment of the support surface 11 suitable for reading and writing.

[0088] Example 2

[0089] As a variation of the above embodiment, the operating member 311 is a knob, which is threadedly connected to the connecting member 312. By rotating the knob, the first connecting part 32 and the second connecting part 13 are made to abut against each other and fixed, or the abutment between the first connecting part 32 and the second connecting part 13 is released.

[0090] In this embodiment, the support foot 30 includes a horizontal bar and an end bar 302. The lower end of the vertical bar is provided with the aforementioned first connecting portion 32, and the horizontal bar is connected to the upper end of the end bar 302. In some other embodiments with poorer performance, the support foot 30 may only have an end bar 302.

[0091] The connector 312 is a cylindrical screw with a limiting end on one end. The first connecting part 32 and the second connecting part 13 are respectively provided with shaft holes. The other end of the connector 312 passes through the two shaft holes and is threaded to the knob. At this time, the connector 312 also serves as the rotating shaft 4 to realize the rotational connection between the first connecting part 32 and the second connecting part 13.

[0092] When it is necessary to adjust the angle of the support foot 30, turn the knob to release the mutual abutment of the first connecting part 32 and the second connecting part 13, and then turn the support foot 30 to adjust. After turning to the expected angle, turn the knob in the opposite direction to make the first connecting part 32 and the second connecting part 13 abut against each other, and the first positioning tooth and the second positioning tooth engage, thereby fixing the angle between the support foot 30 and the pad body 1, and finally completing the angle adjustment of the support foot 30.

[0093] Example 3

[0094] In another embodiment, the aforementioned support leg 30 is a rod with an adjustable length.

[0095] Specifically, it includes a locking member, a return spring, and at least two support sections, with adjacent support sections being sleeved together in sequence; a number of positioning teeth are provided on the outer wall of the sleeved support section, distributed along the direction of length adjustment of the support foot 30; the locking member is rotatably connected to the outer wall of the sleeved support section; one end of the locking member is provided with a positioning block that cooperates with the positioning teeth; the return spring is connected to the other end of the locking member, which is suitable for keeping the positioning block engaged with the positioning teeth.

[0096] For example, two support sections are provided, which are the first section and the second section from the pad body 1. The upper end of the first section is provided with a first connecting part 32, which is connected to the second connecting part 13 of the pad body 1. The second section is sleeved on the lower end of the first section. Specifically, the second section is provided with a receiving cavity, and the lower end of the first section is sleeved in the receiving cavity. Several stop teeth are provided on the outer wall of the first section. The middle part of the locking member is hinged to the outer wall of the second section. One end of the locking member faces inward, that is, a positioning block is provided in the direction of the outer wall of the second section. The two ends of the return spring abut against the outer wall of the second section and the other end of the locking member, respectively.

[0097] Press the reset spring end of the locking element, and the positioning block disengages from the gear teeth. Then adjust the length of the first section into the second section's receiving cavity, and then release the locking element. Under the action of the reset spring, the positioning block engages with another gear teeth, completing the length adjustment of the support foot 30, thereby adjusting the inclination angle of the support surface 11.

[0098] Furthermore, a through hole is provided in the second section, through which the positioning block engages or disengages with the gear teeth.

[0099] It is not difficult to understand that the connection between the first and second sections can also be that the second section is fitted into the first section, such as by setting a receiving cavity at the lower end of the first section and fitting the upper end of the second section into the receiving cavity; correspondingly, the locking element is hinged to the outer wall of the first section, and the two ends of the return spring abut against the outer wall of the first section and the locking element, respectively.

[0100] This utility model discloses a study mat with elbow support. By rotating the elbow support assembly 2, it is set at the front end of the mat body 1. Thus, when the support assembly 3 adjusts the different tilt angles of the support surface 11 on the mat body 1, the elbow support assembly 2 remains unaffected and always provides good elbow support, relieving hand fatigue. Furthermore, by adjusting the tilt angle of the support surface 11, the user can choose a personalized tilt angle, forming a reading and writing angle more suitable for the user, thereby more effectively protecting the user's eyesight and reducing the probability of poor posture such as hunchback caused by looking down.

[0101] The above embodiments only illustrate a portion of the implementation methods of the present invention. Any modifications, substitutions, and improvements made by those skilled in the art without departing from the inventive concept of the present invention, without creative effort, are all within the protection scope of the present invention.

Claims

1. An elbow-able learning pad, characterized by: The cushion plate body (1) has a reference surface (12) facing the desktop and a supporting surface (11) for reading and writing of the user; The support assembly (3) is connected to the cushion plate body (1) and is adapted to adjust the height of the end of the cushion plate body (1) away from the user, so that the supporting surface (11) has different inclination angles relative to the desktop; The elbow support assembly (2) is rotatably connected to the cushion plate body (1) and is located at the end close to the user.

2. The elbowlable learning dolly of claim 1, wherein, The first assembly block (14) or the first assembly slot (15) is provided on the cushion plate body (1); The second assembly block (22) is provided on the elbow support assembly (2); The first assembly block (14) or the first assembly slot (15) and the second assembly block (22) are rotatably connected by the rotating shaft (4).

3. The elbowlable learning dolly of claim 2, wherein, The first assembly block (14) is provided with a plurality of first assembly blocks (14) which are sequentially and spacedly distributed on the cushion plate body (1), and the first assembly slot (15) is formed between the two adjacent first assembly blocks (14); The second assembly block (22) is provided with a plurality of second assembly blocks (22) which are sequentially and spacedly distributed on the elbow support assembly (2), and the second assembly slot (23) is formed between the two adjacent second assembly blocks (22); At least one first assembly block (14) is connected to one second assembly slot (23) by a rotating shaft (4), and at least one second assembly block (22) is connected to one first assembly slot (15) by a rotating shaft (4), so that the first assembly block (14) and the second assembly block (22) are misaligned.

4. The elbowlable learning dolly of claim 3, wherein, The first assembly block (14) and the second assembly block (22) are protruded from the supporting surface (11); The first assembly slot (15) is provided with a first displacement slot (17) adapted to avoid the second assembly block (22); The second assembly slot (23) is provided with a second displacement slot (25) adapted to avoid the first assembly block (14).

5. The elbowlable learning table according to any one of claims 1-4, wherein, The first functional protrusion (24) is provided on the elbow support assembly (2) and is located on the side facing the desktop.

6. The elbowlable learning dolly of claim 5, wherein, The second functional protrusion (16) is provided on the cushion plate body (1); The second functional protrusion (16) is arranged in position corresponding to the first functional protrusion (24), and the two work together to limit the rotation of the elbow support assembly (2) towards the reference surface (12).

7. The elbowlable learning dolly of any of claims 1-4, 6, wherein, The limiting guide (21) is provided on the elbow support assembly (2) and is located at the end away from the cushion plate body (1) and is adapted to cooperate with the edge of the desktop.

8. The elbowlable learning table according to any of claims 1-4, 6, wherein, The support assembly (3) includes a support leg (30); The support leg (30) is provided with a first connecting part (32), and the cushion plate body (1) is provided with a second connecting part (13) rotatably connected with the first connecting part (32); The support leg (30) is set in one of the following three ways: Option one, the support leg (30) is provided with a plurality of groups, each group of the support leg (30) has different lengths, and the support leg (30) is rotatably connected to the second connecting part (13). In the second scheme, the support leg (30) is rotatably connected to the second connecting part (13) through an angle adjusting mechanism (31), which is adapted to lock or release the angle between the support leg (30) and the base plate body (1). In the third scheme, the support leg (30) is a length-adjustable rod.

9. The elbowlable learning dolly of claim 8, wherein, The angle adjusting mechanism (31) comprises a connecting piece (312), an operating piece (311), a first positioning part (314) and a second positioning part (313). One end of the connecting piece (312) is connected to the first connecting part (32), and the other end is connected to the operating piece (311) through the second connecting part (13), or one end of the connecting piece (312) is connected to the second connecting part (13), and the other end is connected to the operating piece (311) through the first connecting part (32). The first positioning part (314) comprises a plurality of first positioning teeth, which are arranged on the first connecting part (32). The second positioning part (313) comprises a plurality of second positioning teeth matched with the first positioning teeth, which are arranged on the second connecting part (13). After the operating piece (311) is rotated to a predetermined stroke, the first positioning part (314) and the second positioning part (313) can be engaged to limit the rotation between the first connecting part (32) and the second connecting part (13), so as to lock or release the angle between the support leg (30) and the base plate body (1).

10. The elbowlable learning table of claim 8, wherein, The support leg (30) comprises a locking piece, a reset spring and at least two support segments, and adjacent support segments are sequentially sleeved. A plurality of gear teeth are arranged on the outer wall of the sleeved support segment, which are distributed along the length adjustment direction of the support leg (30). The locking piece is rotatably connected to the outer wall of the sleeved support segment. One end of the locking piece is provided with a positioning block matched with the gear teeth. The other end of the locking piece is connected to the reset spring, which is adapted to keep the positioning block clamped on the gear teeth.

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