Sitting posture corrector capable of preventing hands from being pinched

Abstract

The utility model discloses a sitting posture corrector capable of preventing hands from being pinched, and belongs to the field of sitting posture correctors. The sitting posture corrector comprises a base and a correcting piece. The base is provided with a first surface, the first surface is provided with a writing surface, one side of the base is provided with a receding opening and a containing groove, and the containing groove is located in the side wall, corresponding to the receding opening, of the base; the correcting piece comprises a correcting part and a rotating part, the correcting part is located on the rotating part, the rotating part is rotatably inserted into the containing groove, and the correcting part and the avoiding opening are oppositely arranged. The anti-pinch sitting posture corrector provided by the embodiment of the utility model not only can be used for correcting the sitting posture, but also can be matched with reading and writing scenes, so that the functions of the sitting posture corrector are enriched, and the risk that the hands of students are pinched in the use process can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of sitting posture correctors, and particularly relates to a sitting posture corrector that prevents pinching hands. Background Art

[0002] During the learning process, students often bend their waists, necks or lie on the table to read. If they maintain such incorrect sitting postures for a long time, it will cause problems such as spinal deformity or myopia, which will affect the students' eyesight and normal physical development in the long run. Therefore, in order to ensure the correct sitting posture of students during the learning process, sitting posture correctors are becoming more and more popular among students and parents.

[0003] In the related art, a rotating part is provided at the bottom of the existing sitting posture corrector, and a positioning hole is correspondingly provided on the desk. The rotating part is inserted into the positioning hole, and the flipping is realized through a corresponding rotating shaft provided on the rotating part. However, a relatively long gap is formed between the rotating part and the inner wall of the positioning hole in the axial direction, and this gap is extremely likely to cause students to get their hands pinched during use. Summary of the Utility Model

[0004] In view of the above defects or improvement requirements of the prior art, the present utility model provides a sitting posture corrector that prevents pinching hands, aiming to not only correct the sitting posture while realizing the cooperation with the reading and writing scenarios, enriching the functions of the sitting posture corrector, but also reducing the risk of students getting their hands pinched during use.

[0005] To achieve the above object, the present utility model provides a sitting posture corrector that prevents pinching hands, and the sitting posture corrector includes a base and a correction member;

[0006] The base has a first surface, a writing surface is provided on the first surface, and an avoidance port and a receiving groove are provided on one side of the base, and the receiving groove is located on the side wall of the base corresponding to the avoidance port;

[0007] The correction member includes a correction part and a rotating part, the correction part is located on the rotating part, the correction part is used for forming a limit to correct the sitting posture, the rotating part is rotatably inserted into the receiving groove, and the correction part is arranged opposite to the avoidance port.

[0008] Optionally, the number of the receiving grooves is two, the rotating part includes a connecting section and two rotating sections connected coaxially, the connecting section is located between the two rotating sections, each rotating section is rotatably inserted into the corresponding receiving groove, the connecting section is inserted into the avoidance port, and the correction part is inserted into the connecting section.

[0009] Optionally, a connecting bolt is inserted into one rotating section, and a nut is inserted into the other rotating section, and the connecting bolt passes through the connecting section and is connected to the nut.

[0010] Optionally, a limiting block is provided on the connecting section. The limiting block has a through hole, and the correction portion is inserted into the through hole. The limiting block is configured such that when the limiting block rotates until the through hole is perpendicular to the desktop, the limiting block abuts against the inner wall of the avoidance opening.

[0011] Optionally, in the axial direction of the rotating portion, the bottom length of the correction portion, the length of the connecting section, and the length of the avoidance opening are all equal.

[0012] Optionally, the base includes an upper shell and a lower shell. The upper shell and the lower shell are detachably connected to form the avoidance opening and the two accommodation grooves.

[0013] Optionally, the inner wall of the avoidance opening and the outer peripheral wall of the rotating portion are both arc-shaped, and the outer peripheral wall of the rotating portion is in sliding fit with the inner wall of the avoidance opening.

[0014] Optionally, the sitting posture corrector further includes a reading board. The reading board is located on the first surface, and the writing surface is located between the correction portion and the reading board.

[0015] Optionally, the bottom of the reading board has a sliding board, and the sliding board is slidably arranged on the first surface in a direction close to or away from the correction member.

[0016] Optionally, the correction portion includes a support rod and a limiting rod. The bottom end of the support rod is inserted into the rotating portion, and the limiting rod is located at the top end of the support rod.

[0017] Optionally, two elastic bread pads are provided on one side of the limiting rod at intervals. The elastic bread pads are used to buffer the student's body.

[0018] Optionally, two skirt edges are provided on the first surface. The two skirt edges are located on both sides of the writing surface, and each skirt edge is used to support the student's elbows.

[0019] As long as the above-mentioned improved technical features do not conflict with each other, they can be combined with each other.

[0020] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0021] (1) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, during use, the base is placed on the desk. At this time, the writing surface is located above the desktop, and the writing surface can support the book, facilitating writing or reading and writing. The correction member can correct the sitting posture of the body, and ultimately cooperate with the reading and writing scenario while correcting the sitting posture, enriching the functions of the sitting posture corrector. On the side wall of the base corresponding to the avoidance opening of the accommodation groove, that is, the avoidance opening and the accommodation groove. And, the correction part is located on the rotating part, and the rotating part is rotatably inserted into the accommodation groove, so that a part of the rotating part can be inserted into the interior of the base, reducing the length of the exposed rotating part. Thus, compared with the existing sitting posture corrector, the length of the gap between the rotating part and the avoidance opening is reduced (that is, the length of this avoidance opening in the X - axis direction is much smaller than the length of the existing positioning opening), greatly reducing the risk of students being pinched during use. At the same time, the two end parts of the rotating part act as rotating shafts, avoiding the need to set up additional rotating shafts.

[0022] (2) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, the rotating part includes a connecting section and two rotating sections connected coaxially. The connecting section is located between the two rotating sections, and each rotating section is rotatably inserted into the corresponding accommodation groove. The connecting section is inserted into the avoidance opening, and the correction part is inserted into the connecting section. A connecting bolt is inserted into one rotating section, and a nut is inserted into the other rotating section. The connecting bolt passes through the connecting section and is connected to the nut, thereby realizing the convenient connection of the connecting section and the two rotating sections through the connecting bolt and the nut.

[0023] (3) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, the connecting section has a limiting block, and the limiting block has a through - hole. The correction part is inserted into the through - hole, and the limiting block is configured such that when the limiting block rotates until the through - hole is perpendicular to the desktop, the limiting block abuts against the inner wall of the avoidance opening. When the limiting block rotates until the through - hole is perpendicular to the desktop, that is, at this time the limiting block just rotates to the vertical state, and the through - hole is also in the vertical state. The rotation of the rotating part is limited by the abutment of the limiting block against the inner wall of the avoidance opening.

[0024] (4) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, the base includes an upper shell and a lower shell. The upper shell and the lower shell are detachably connected to form an avoidance opening and two accommodation grooves. Through the detachable connection of the upper shell and the lower shell, the avoidance opening or the accommodation groove can be conveniently opened, facilitating the installation of the rotating part.

[0025] (5) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, the correction part includes a support rod and a limiting rod. The bottom end of the support rod is inserted into the rotating part, and the limiting rod is located at the top end of the support rod. Among them, the support rod plays a role in connecting the rotating part and the limiting rod, and the limiting rod can support the student's lower jaw or prevent the student's shoulder from moving downwards, thereby forcing the student to adjust to the correct sitting posture.

[0026] (6) For a pinch - proof sitting posture corrector provided by an embodiment of the present utility model, the sitting posture corrector further includes a reading board. The reading board is located on the first surface, and the writing surface is located between the correction part and the reading board. The reading board can support the book during reading. The bottom of the reading board has a sliding board, and the sliding board is slidably arranged on the first surface along a direction close to or away from the correction member. The reading board is slidably arranged on the first surface along a direction close to or away from the correction member, and the distance between the reading board and the correction member can be freely adjusted according to the eyesight of the student, so as to better match different students while correcting the sitting posture. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a pinch - proof sitting posture corrector provided by an embodiment of the present utility model;

[0028] Figure 2 is a schematic structural diagram of the base provided by an embodiment of the present utility model;

[0029] Figure 3 is a schematic structural diagram of the correction member provided by an embodiment of the present utility model;

[0030] Figure 4 is a schematic structural diagram of the lower shell provided by an embodiment of the present utility model.

[0031] In all the drawings, the same reference numerals represent the same technical features. Specifically:

[0032] 1. Base; 11. Writing surface; 12. Avoidance opening; 13. Accommodation groove; 14. Upper shell; 15. Lower shell; 151. Positioning groove; 16. Skirt; 2. Correction member; 21. Correction part; 211. Support rod; 212. Limiting rod; 213. Elastic bread pad; 22. Rotating part; 221. Connection section; 222. Rotating section; 2221. Slot; 223. Limiting block; 3. Reading board; 31. Sliding board. Detailed Embodiments

[0033] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0036] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0038] Embodiment:

[0039] Figure 1 It is a schematic structural diagram of a pinch-proof sitting posture corrector provided by an embodiment of the present utility model. As Figure 1 shown, the sitting posture corrector includes a base 1 and a correction member 2.

[0040] Figure 2 is a schematic structural view of the base provided by an embodiment of the present utility model. As Figure 2 shown, the base 1 has a first surface, on which there is a writing surface 11. One side of the base 1 has an avoidance opening 12 and a receiving groove 13, and the receiving groove 13 is located on the side wall of the base 1 corresponding to the avoidance opening 12.

[0041] Figure 3 is a schematic structural view of the correction member provided by an embodiment of the present utility model. As Figure 3 shown, the correction member 2 includes a correction part 21 and a rotation part 22. The correction part 21 is located on the rotation part 22. The correction part 21 is used to form a limit for correcting the sitting posture. The rotation part 22 is rotatably inserted into the receiving groove 13, and the correction part 21 is arranged opposite to the avoidance opening 12.

[0042] For an anti-pinch sitting posture corrector provided by an embodiment of the present utility model, when in use, the base 1 is placed on the desk. At this time, the writing surface 11 is located above the desk surface, and the writing surface 11 can support the book, facilitating writing or reading and writing. The correction member 2 can correct the sitting posture of the body, so as to finally cooperate with the reading and writing scenario while correcting the sitting posture, enriching the functions of the sitting posture corrector.

[0043] Further, the receiving groove 13 is on the side wall of the base 1 corresponding to the avoidance opening 12, that is, the avoidance opening 12 and the receiving groove 13. And, the correction part 21 is located on the rotation part 22, and the rotation part 22 is rotatably inserted into the receiving groove 13, so that a part of the rotation part 22 can be inserted into the base 1, reducing the exposed length of the rotation part 22. Thus, the gap length between the rotation part 22 and the avoidance opening 12 is relatively reduced compared with the existing sitting posture corrector (that is, the length of the avoidance opening 12 in the X-axis direction is much smaller than the length of the existing positioning opening), greatly reducing the risk of being pinched by the hand during the use by students. At the same time, the two end parts of the rotation part 22 act as a rotating shaft, avoiding the need to additionally provide a rotating shaft.

[0044] That is to say, an anti-pinch sitting posture corrector provided by an embodiment of the present utility model not only realizes the cooperation with the reading and writing scenario while correcting the sitting posture, enriching the functions of the sitting posture corrector, but also can reduce the risk of being pinched by the hand during the use by students.

[0045] It is easy to understand that by rotating the correction member 2, the correction part 21 can be flipped to the lower part of the base 1 and the desk, so as to hide the correction part 21 and avoid interference of the correction part 21 in the non-use state. In addition, the middle part of the rotation part 22 is exposed and correspondingly inserted into the avoidance opening 12, and the correction part 21 is located on the middle part of the rotation part 22, avoiding interference with the installation of the correction part 21.

[0046] In one implementation manner of the present utility model, there may be one accommodation groove 13, that is, rotation and insertion are achieved through one end of the rotation part 22.

[0047] Continue to refer to Figure 3 , in another implementation manner of the present utility model, the number of accommodation grooves 13 is two. The rotation part 22 includes a connection section 221 and two rotation sections 222 connected coaxially. The connection section 221 is located between the two rotation sections 222. Each rotation section 222 is rotatably inserted into the corresponding accommodation groove 13. The connection section 221 is inserted into the avoidance opening 12, and the correction part 21 is inserted into the connection section 221.

[0048] In the above implementation manner, dividing the rotation part 22 into three sections facilitates processing and assembly, especially the connection between the correction part 21 and the connection section 221. In addition, inserting through both ends of the rotation part 22 can increase the stability of the rotation of the rotation part 22.

[0049] Exemplarily, the outer diameter of the connection section 221 is greater than the outer diameters of the two rotation sections 222. In addition, each rotation section 222 may include a plurality of unit sections connected to each other and with gradually changing diameters, which is convenient for positioning.

[0050] Further, a connection bolt is inserted into one rotation section 222, and a nut is inserted into the other rotation section 222. The connection bolt passes through the connection section 221 and is connected to the nut, so as to realize the convenient connection between the connection section 221 and the two rotation sections 222, thus forming an integral body.

[0051] Exemplarily, washers are clamped between the connection section 221 and each rotation section 222, so that the clamping force between the connection section 221 and each rotation section 222 can be adjusted under the cooperation of the connection bolt and the nut. In addition, a slot 2221 is provided on the left rotation section 222, and the nut can be inserted through the slot 2221.

[0052] In addition, the connection section 221 has a limit block 223, and the limit block 223 has a through hole. The correction part 21 is inserted into the through hole, and the limit block 223 is configured such that when the limit block 223 rotates to make the through hole perpendicular to the desktop, the limit block 223 abuts against the inner wall of the avoidance opening 12.

[0053] It is easy to understand that when the limit block 223 rotates to make the through hole perpendicular to the desktop, that is, at this time the limit block 223 just rotates to the vertical state, and the through hole is also in the vertical state. Locking is achieved by the limit block 223 abutting against the inner wall of the avoidance opening 12, and the rotation of the rotation part 22 is limited. That is to say, at this time the rotation part 22 just rotates to the locked position, and the correction part 21 is arranged vertically, so as to realize sitting posture correction and avoid the problem that the correction part 21 continues to rotate and causes excessive rotation of the correction part 21 and thus fails to achieve sitting posture correction.

[0054] Preferably, in the axial direction of the rotating part 22 (i.e., the X-axis direction), the bottom length of the correcting part 21, the length of the connecting section 221, and the length of the avoiding opening 12 are all equal. The length of the rotating part 22 exposed outside the base 1 is consistent with the bottom length of the correcting part 21 and the avoiding opening 12. At this time, the gap length between the rotating part 22 and the avoiding opening 12 can be made equal to the length of the connecting section 221 (the rotating section 222 is completely inserted). At this time, the gap is the shortest, and the bottom of the correcting part 21 is exactly the same length as this gap, which can interfere with the user's hand and minimize the risk of pinching the hand.

[0055] It should be noted that the above equality only needs to satisfy approximate equality, that is, the specific data such as the bottom length of the correcting part 21, the length of the connecting section 221, and the length of the avoiding opening 12 with a difference of 0 - 10 mm all meet the requirements.

[0056] In this embodiment, the base 1 includes an upper shell 14 and a lower shell 15. The upper shell 14 and the lower shell 15 are detachably connected to form the avoiding opening 12 and two accommodating grooves 13.

[0057] In the above embodiment, through the detachable connection of the upper shell 14 and the lower shell 15, the convenient opening of the avoiding opening 12 or the accommodating groove 13 can be realized, so as to facilitate the installation of the rotating part 22.

[0058] Exemplarily, the upper shell 14 and the lower shell 15 are connected by bolts or buckles. The writing surface 11 is located on the upper shell 14.

[0059] Figure 4 It is a schematic structural diagram of the lower shell provided by the embodiment of the present invention. As Figure 4 shown, both the lower shell 15 and the upper shell 14 have a plurality of positioning grooves 151, so as to respectively realize the positioning of the connecting section 221 and the two rotating sections 222.

[0060] In one implementation manner of the present invention, the inner wall of the avoiding opening 12 and the outer peripheral wall of the rotating part 22 are both arc-shaped, and the outer peripheral wall of the rotating part 22 is slidably matched with the inner wall of the avoiding opening 12, so as to reduce the width (Y direction) of the gap between the inner wall of the avoiding opening 12 and the outer peripheral wall of the rotating part 22, and further reduce the risk of pinching the hand.

[0061] In this embodiment, the correcting part 21 includes a support rod 211 and a limiting rod 212. The bottom end of the support rod 211 is inserted on the rotating part 22, and the limiting rod 212 is located at the top end of the support rod 211. Among them, the support rod 211 plays a role in connecting the rotating part 22 and the limiting rod 212, while the limiting rod 212 can support the student's lower jaw or prevent the student's shoulder from moving down, so as to force the student to adjust to the correct sitting posture.

[0062] Exemplarily, the bottom end of the support rod 211 is coaxially inserted into the through hole of the limit block 223. The support rod 211 and the limit rod 212 are arranged in a T shape.

[0063] Further, one side of the limit rod 212 has two elastic bread pads 213 arranged at intervals, and the elastic bread pads 213 are used to buffer the student's body. The elastic bread pads 213 play a buffering role to avoid hard contact between the student's body and the limit rod 212.

[0064] Continue to refer to Figure 1 , the sitting posture corrector further includes a reading board 3, the reading board 3 is located on the first surface, and the writing surface 11 is located between the correction part 21 and the reading board 3.

[0065] In the above embodiment, the reading board 3 can support the book during reading to achieve flat reading.

[0066] Exemplarily, the writing surface 11 is located between the correction member 2 and the reading board 3, so that the correction member 2, the writing surface 11 and the reading board 3 form a three-dimensional integrated spatial structure (regarded as a U-shaped structure as a whole), which cooperate with each other spatially but are functionally independent to avoid mutual interference.

[0067] Further, the bottom of the reading board 3 has a sliding plate 31, and the sliding plate 31 is slidably arranged on the first surface along the direction of approaching or departing from the correction member 2.

[0068] In the above embodiment, the reading board 3 is slidably arranged on the first surface along the direction of approaching or departing from the correction member 2, and the distance between the reading board 3 and the correction member 2 can be freely adjusted according to the student's eyesight, so as to better match different students while correcting the sitting posture.

[0069] In addition, there are two skirt edges 16 on the first surface, and the two skirt edges 16 are located on both sides of the writing surface 11, and each skirt edge 16 is used to support the student's elbows. The skirt edge 16 is used to support the student's elbows to avoid the elbows from hanging in the air and enhance the comfort during writing.

[0070] Those skilled in the art can easily understand that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sitting posture corrector for preventing hand pinching, characterized in that: The sitting posture corrector comprises a base (1) and a correcting piece (2); The base (1) has a first surface, the first surface has a writing surface (11), one side of the base (1) has a position avoidance opening (12) and a receiving groove (13), the receiving groove (13) is located on the side wall of the base (1) corresponding to the position avoidance opening (12); The correcting member (2) comprises a correcting portion (21) and a rotating portion (22); the correcting portion (21) is located on the rotating portion (22); the correcting portion (21) is used to form a limit position to correct the sitting posture; the rotating portion (22) is rotatably inserted into the accommodating groove (13), and the correcting portion (21) is arranged opposite to the avoidance opening (12).

2. The anti-pinch hand sitting posture corrector according to claim 1, characterized in that: The number of the accommodating grooves (13) is two, the rotating portion (22) comprises a coaxially connected connecting segment (221) and two rotating segments (222), the connecting segment (221) is located between the two rotating segments (222), each rotating segment (222) is rotatably inserted in a corresponding accommodating groove (13), the connecting segment (221) is inserted in the avoidance opening (12), and the correcting portion (21) is inserted in the connecting segment (221).

3. The anti-pinch sitting posture corrector according to claim 2, characterized in that: A connecting bolt is inserted into one of the rotating sections (222), and a nut is inserted into the other rotating section (222); the connecting bolt penetrates the connecting section (221) and is connected to the nut.

4. The anti-pinch sitting posture corrector according to claim 2, characterized in that: The connection section (221) is provided with a limit block (223), the limit block (223) having a through hole, the correction portion (21) being inserted into the through hole, and the limit block (223) being configured such that when the limit block (223) is rotated until the through hole is perpendicular to the desktop, the limit block (223) abuts against the inner wall of the avoidance opening (12).

5. The anti-pinch sitting posture corrector according to claim 2, characterized in that: In the axial direction of the rotating portion (22), the bottom length of the correcting portion (21), the length of the connecting section (221) and the length of the avoidance opening (12) are all equal.

6. The anti-pinch sitting posture corrector according to claim 1, characterized in that: The base (1) comprises an upper shell (14) and a lower shell (15), wherein the upper shell (14) and the lower shell (15) are detachably connected to form the avoidance opening (12) and the two accommodating grooves (13).

7. The anti-pinch sitting posture corrector according to claim 1, characterized in that: The inner wall of the avoidance opening (12) and the outer peripheral wall of the rotating part (22) are both arc-shaped, and the outer peripheral wall of the rotating part (22) is slidably matched with the inner wall of the avoidance opening (12).

8. The anti-pinch sitting posture corrector according to claim 1, characterized in that: The sitting posture corrector further comprises a reading board (3), wherein the reading board (3) is located on the first surface, and the writing surface (11) is located between the correction part (21) and the reading board (3).

9. The anti-pinch sitting posture corrector according to claim 8, characterized in that: The bottom of the reading plate (3) is provided with a sliding plate (31), and the sliding plate (31) is slidably arranged on the first surface in a direction approaching or moving away from the correction piece (2).

10. A sitting posture corrector for preventing hand pinching according to any one of claims 1 to 9, characterized in that: The correction part (21) comprises a support rod (211) and a limit rod (212); the bottom end of the support rod (211) is inserted into the rotating part (22); and the limit rod (212) is located on the top end of the support rod (211).

11. The anti-pinch sitting posture corrector according to claim 10, characterized in that: One side of the limiting rod (212) is provided with two elastic pads (213) arranged at intervals, and the elastic pads (213) are used to cushion the body of the student.

12. A sitting posture corrector for preventing hand pinching according to any one of claims 1 to 9, characterized in that: The first surface is provided with two skirt edges (16), the two skirt edges (16) are located on both sides of the writing surface (11), and each of the skirt edges (16) is used to support the elbows of students.

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