Adjustable sitting posture correction table

Abstract

The patent discloses an adjustable sitting posture correction table, which is arranged on a desktop panel, and comprises a correction table panel, a correction bracket and an angle support frame, the correction table panel is used for placing learning tools, the correction bracket is fixed on the correction table panel to provide guidance for correct sitting posture, and the angle support frame is connected with the correction table panel to change the inclination angle of the correction table panel; the sitting posture correction table further comprises an adaptive support frame, the adaptive support frame abuts against at least two sides of the desktop panel, and the contact surface of the adaptive support frame and the desktop panel is provided with an antiskid pad. By abutting against multiple sides of the desktop panel through the adaptive support frame, the positioning and fixation of the sitting posture correction table are facilitated; when the correction table panel is used in multiple inclination angles, the adaptive support frame always keeps in contact with the two sides of the desktop panel, and the antiskid effect is improved through the position design of the antiskid pad, so that the antiskid stability is ensured.

Description

Technical Field

[0001] This patent relates to the field of learning aids, and in particular to an adjustable posture correction table. Background Technology

[0002] Adjustable posture correction tables with different support angles are becoming increasingly common. This means that on the same table, different height support frames allow for various writing and reading angles, such as horizontal, 7-degree, and 12-degree angles. Most existing anti-slip devices work when horizontal. When supported by the frame, the front side typically has anti-slip pads with curved surfaces like spherical surfaces to contact the tabletop. However, these pads are often designed with only a line or a single point of contact, resulting in poor stability and limited effectiveness. Furthermore, when supported at multiple angles like 7-degree or 12-degree, the anti-slip pads cannot maintain horizontal contact with the tabletop, leaving them without support points. This leads to extremely low friction and poor anti-slip performance. Utility Model Content

[0003] The purpose of this patent is to provide an adjustable posture correction platform to improve the anti-slip effect.

[0004] To solve the above-mentioned technical problems, this patent adopts the following technical solution:

[0005] An adjustable posture correction table is provided, which is arranged on a desktop. The posture correction table includes a table panel, a correction bracket, and an angle support frame. The table panel is used to place learning tools. The correction bracket is fixed to the table panel to provide guidance for correct sitting posture. The angle support frame is connected to the table panel to change the tilt angle of the table panel. The posture correction table also includes an adaptive bracket, which abuts against at least two sides of the desktop. The contact surface between the adaptive bracket and the desktop is provided with an anti-slip pad.

[0006] Furthermore, the adaptive brace is positioned close to the correction bracket.

[0007] Furthermore, the anti-slip mats include anti-slip mats for the front desktop and anti-slip mats for the side desktop;

[0008] Furthermore, the anti-slip pads on the front and sides of the desktop are angled and abut against the desktop board.

[0009] Furthermore, the adaptive support includes an anti-slip pad for the correction table, which is positioned at the contact surface between the adaptive support and the correction table panel.

[0010] Furthermore, the adaptive bracket is equipped with a pivot.

[0011] Furthermore, the correction table panel includes a pivot fixing structure.

[0012] Furthermore, the pivot is fixed in the pivot fixing structure so that the adaptive bracket is connected to the correction table panel through the pivot.

[0013] Furthermore, at least two adaptive supports should be installed.

[0014] Furthermore, the adaptive scaffold includes a first adaptive scaffold and a second adaptive scaffold.

[0015] Furthermore, the first adaptive support and the second adaptive support are arranged symmetrically.

[0016] Furthermore, the angle support frame includes an inner support frame, an inner anti-slip pad, an outer support frame, and an outer anti-slip pad;

[0017] Furthermore, an inner anti-slip pad is installed at the contact point between the inner support frame and the desktop panel;

[0018] Furthermore, an outer anti-slip pad is installed at the contact point between the outer support frame and the desktop; when the posture correction table is tilted to the desktop, the inner or outer support frame can support the correction table panel at an angle.

[0019] Furthermore, the outer support frame includes an inner shaft fixing hole and an outer rotating shaft;

[0020] Furthermore, the inner support frame includes an inner rotating shaft;

[0021] Furthermore, the inner rotating shaft can be embedded in the inner shaft fixing hole so that the inner support frame can be connected to the outer support frame;

[0022] Furthermore, the outer support frame is connected to the correction table panel via an outer pivot; when the posture correction table is placed flat on the tabletop, the inner support frame is located inside the outer support frame.

[0023] Furthermore, at least two angle support brackets should be installed.

[0024] Furthermore, the angle support frame includes a first angle support frame and a second angle support frame;

[0025] Furthermore, the first angle support frame and the second angle support frame are arranged symmetrically.

[0026] Furthermore, the correction table panel includes a hollow groove, which is arranged between the correction table panel and the tabletop.

[0027] Furthermore, multiple hollow protrusions are provided, and the hollow protrusions are arranged around the angle support frame.

[0028] Furthermore, the correction table panel also includes a support anti-slip plate, which is positioned close to the adaptive support.

[0029] Furthermore, the correction table panel also includes a support frame groove, a support frame anti-slip plate, a support frame fixing structure, and a support frame rotation port.

[0030] Furthermore, the angle support frame is accommodated in the support frame groove;

[0031] Furthermore, the anti-slip plate of the support frame is positioned close to the angle of the support frame;

[0032] Furthermore, the angle support frame is embedded in the support frame fixing structure, so that the angle support frame is rotatably connected to the straightening table panel.

[0033] Furthermore, the end of the angle support frame away from the support frame fixing structure is provided with a support frame rotation port, so that the angle support frame can be removed from the support frame rotation port to change the tilt angle of the correction table panel.

[0034] This patent provides an adjustable posture correction table. By setting an adaptive bracket to abut against multiple sides of the desktop, the posture correction table can be easily positioned and fixed. When the correction table panel is tilted at multiple angles, the adaptive bracket always maintains contact with two sides of the desktop. Furthermore, the anti-slip pads are designed to improve the anti-slip effect and ensure its anti-slip stability. Attached Figure Description

[0035] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0036] Figure 1 This is a schematic diagram illustrating the use of the posture correction table in this patent;

[0037] Figure 2 This is a front structural diagram of the posture correction table in this patent;

[0038] Figure 3 This is an exploded view of the posture correction table in this patent;

[0039] Figure 4 yes Figure 3 A diagram from another angle;

[0040] Figure 5 This is a schematic diagram of the interaction between the adaptive bracket and the correction table panel in this patent;

[0041] Figure 6 This is a schematic diagram showing the location of the support frame groove of the correction table panel in this patent;

[0042] Figure 7 This is a schematic diagram of the angle support frame in this patent;

[0043] Figure 8 This is a schematic diagram of the posture correction table in the flat position in this patent.

[0044] Figure 9This is a schematic diagram of the 7-degree tilt state of the posture correction table in this patent;

[0045] Figure 10 This is a schematic diagram of the 12-degree tilt state of the posture correction table in this patent.

[0046] The reference numerals in the attached figures are explained as follows:

[0047] Adaptive support: 1

[0048] First adaptive support: 11

[0049] First pivot: 111

[0050] First correction table anti-slip mat: 112

[0051] First, the anti-slip pad on the main desktop: 113

[0052] First side desktop contact anti-slip pad: 114

[0053] Second adaptive support: 12

[0054] Second pivot: 121

[0055] Second correction table anti-slip mat: 122

[0056] Second desktop contact anti-slip pad: 123

[0057] Second side desktop contact anti-slip pad: 124; Correction table panel: 2

[0058] Shaft fixing structure: 21

[0059] Anti-slip plate bracket: 22

[0060] Hollow groove: 23

[0061] Support slot: 24

[0062] Anti-slip plate support frame: 25

[0063] Support frame fixing structure: 26

[0064] Support frame rotation opening: 27

[0065] Desktop: 3

[0066] Angle support frame: 4

[0067] First internal support frame: 411

[0068] First inner pivot: 4111

[0069] First inner anti-slip mat: 412

[0070] First external support frame: 413

[0071] First inner shaft fixing hole: 4131

[0072] First outer pivot: 4132

[0073] First outer anti-slip mat: 414

[0074] Second internal support frame: 421

[0075] Second inner anti-slip mat: 422

[0076] Second external support frame: 423

[0077] Second outer anti-slip mat: 424

[0078] Corrective braces: 5 Detailed Implementation

[0079] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0080] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0081] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. They are only for the convenience of describing this patent 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 patent.

[0082] All other terms used herein, unless otherwise defined in this patent, are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification, and drawings of this patent, can directly and unambiguously determine how the technical solution of this patent can be implemented. One of ordinary skill in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, one would choose to refer to relevant definitions in other documents published by the applicant prior to the filing date to reasonably interpret the terms; thirdly, one would choose to refer to the references cited in this patent to reasonably interpret the terms; and finally, one would choose to refer to technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by one of ordinary skill in the art to reasonably interpret the terms.

[0083] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the patents fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include:

[0084] The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to the filing date of this application), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to the filing date of this application), published by Wiley; Oberg's Handbook (32nd edition and other editions prior to the filing date of this application), published by IndustrialPress Inc.; Cheng Daxian's Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Chemical Industry Press; and Wen Bangchun's Modern Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Machinery Industry Press.

[0085] To make the objectives, technical solutions, and advantages of this patent clearer, the embodiments of this patent will be described in further detail below with reference to the accompanying drawings.

[0086] like Figure 1-10 The illustration shows an adjustable posture correction table according to this patent. The posture correction table is arranged on a desktop 3 and includes a correction table panel 2, a correction bracket 5, and an angle support frame 4. The correction table panel 2 is used to place learning tools. The correction bracket 5 is fixed to the correction table panel 2 to provide guidance for correct sitting posture. The angle support frame 4 connects to the correction table panel 2 to change the tilt angle of the correction table panel 2. The posture correction table also includes an adaptive bracket 1, which abuts against at least two sides of the desktop 3. The contact surface between the adaptive bracket 1 and the desktop 3 is provided with an anti-slip pad. In one specific embodiment, the correction bracket 5 is used to fix the user's chin position, chest position, or simultaneously abut against the chin and chest position, thereby standardizing the user's correct sitting posture.

[0087] In one embodiment, the adaptive support 1 is arranged close to the orthodontic bracket 5, and the anti-slip pads include a front desktop contact anti-slip pad and a side desktop contact anti-slip pad; the front desktop contact anti-slip pad and the side desktop contact anti-slip pad abut against the desktop board 3 at an angle. For example, the adaptive support 1 abuts against the front surface and the contact surface perpendicular to the front surface of the desktop board 3, respectively, while the front desktop contact anti-slip pad is located on the front surface of the desktop board 3, and the side desktop contact anti-slip pad is located on the contact surface perpendicular to the front surface. This can be understood as the adaptive support 1 abutting against the desktop board 3 at a right angle (90° right angle), thereby achieving positioning and anti-slip of the posture correction table. Compared with conventional strip-shaped and dot-shaped anti-slip pads, this provides higher anti-slip stability and better anti-slip effect. In one specific embodiment, the anti-slip pad structure in this patent can be selected as a rubber anti-slip pad.

[0088] In one embodiment, the adaptive support 1 includes an anti-slip pad for the correction table, which is disposed at the contact surface between the adaptive support 1 and the correction table panel 2 to prevent the adaptive support 1 from rotating when the correction table panel 2 is tilted. In a specific embodiment, the anti-slip pads for the front table, the side table, and the correction table can be adhesively attached to the adaptive support 1.

[0089] In one embodiment, the adaptive bracket 1 is provided with a pivot, which can be installed integrally with the adaptive bracket 1 or as a separate pin structure. In a specific embodiment, the correction table panel 2 includes a pivot fixing structure 21, in which the pivot is fixed, so that the adaptive bracket 1 is connected to the correction table panel 2 via the pivot. In this patent, the adaptive bracket 1 is fixed to the correction table panel 2 via the pivot structure, realizing automatic angle adjustment of the adaptive bracket 1 within a certain angle range, thereby adapting to the support and anti-slip function when the panel is horizontal, at 7 degrees, 12 degrees, etc., ensuring that the anti-slip pad is always flush and in horizontal contact with the tabletop.

[0090] In this patent, the adaptive bracket 1 is connected to the correction table via a shaft. There can be one or more adaptive brackets 1. The adaptive bracket can rotate within a certain angle range via the pivot, thereby adapting to the working state of the correction table panel 2 at different support angles. This ensures that the surface of the adaptive bracket 1 with the attached rubber anti-slip pad is always in parallel contact with the tabletop, achieving a better anti-slip effect. In one embodiment, at least two adaptive brackets 1 are provided, including a first adaptive bracket 11 and a second adaptive bracket 12. The first adaptive bracket 11 and the second adaptive bracket 12 can be symmetrically arranged. In a specific embodiment, the first adaptive bracket 11 includes a first pivot 111 and a first correction table anti-slip pad 112. A first front tabletop contact anti-slip pad 113 and a first side tabletop contact anti-slip pad 114 are fixedly connected to the first adaptive bracket 11. The second adaptive bracket 12 includes a second pivot 121 and a second correction table anti-slip pad 122. A second front tabletop contact anti-slip pad 123 and a second side tabletop contact anti-slip pad 124 are fixedly connected to the second adaptive bracket 12.

[0091] In one embodiment, the angle support frame 4 includes an inner support frame, an inner anti-slip pad, an outer support frame, and an outer anti-slip pad; the inner anti-slip pad is disposed at the position where the inner support frame contacts the desktop 3; the outer anti-slip pad is disposed at the position where the outer support frame contacts the desktop 3; when the posture correction table is tilted relative to the desktop 3, the inner or outer support frame can support the posture correction table panel 2 at an angle. For example, when the inner support frame supports the posture correction table panel 2, the posture correction table panel 2 is tilted such that the posture correction table is tilted at 7 degrees; when the outer support frame supports the posture correction table panel 2, the posture correction table panel 2 is tilted such that the posture correction table is tilted at 12 degrees.

[0092] In one embodiment, the outer support frame includes an inner shaft fixing hole and an outer rotating shaft; the inner support frame includes an inner rotating shaft; the inner rotating shaft can be embedded in the inner shaft fixing hole to connect the inner support frame with the outer support frame; the outer support frame is connected to the correction table panel 2 via the outer rotating shaft; when the posture correction table is placed flat on the tabletop 3, the posture correction table is in a flat state, the inner support frame is located inside the outer support frame, and neither the inner nor the outer support frame supports the correction table panel 2, and the inner and outer support frames are on the same plane. It should be noted that the flat state is only distinguished from the state in which the inner or outer support frame supports the correction table panel 2. The correction table panel 2 can be parallel to the tabletop 3 or have a small angle of inclination, for example, the correction table panel 2 is tilted at 2 degrees.

[0093] In one embodiment, at least two angle support frames 4 are provided, and the angle support frame 4 includes a first angle support frame and a second angle support frame; the first angle support frame and the second angle support frame can be symmetrically arranged.

[0094] In one specific embodiment, the first angle support frame includes a first inner support frame 411, a first inner rotating shaft 4111, a first inner anti-slip pad 412, a first outer support frame 413, a first inner shaft fixing hole 4131, a first outer rotating shaft 4132, and a first outer anti-slip pad 414. The first inner anti-slip pad 412 is disposed at the position where the first inner support frame 411 contacts the desktop 3; the first outer anti-slip pad 414 is disposed at the position where the first outer support frame 413 contacts the desktop 3; the first inner support frame 411 is connected to the first outer support frame 413 via the first inner rotating shaft 4111; the first outer support frame 413 is provided with the first inner shaft fixing hole 4131 and the first outer rotating shaft 4132, the first inner rotating shaft 4111 can be fixedly connected in the first inner shaft fixing hole 4131, and the first outer support frame 413 is connected to the bottom of the correction table panel 2 via the first outer rotating shaft 4132.

[0095] In one specific embodiment, the second angle support frame includes a second inner support frame 421, a second inner rotating shaft, a second inner anti-slip pad 422, a second outer support frame 423, a second inner shaft fixing hole, a second outer rotating shaft, and a second outer anti-slip pad 424. The second inner anti-slip pad 422 is disposed at the position where the second inner support frame 421 contacts the desktop 3; the second outer anti-slip pad 424 is disposed at the position where the second outer support frame 423 contacts the desktop 3; the second inner support frame 421 is connected to the second outer support frame 423 via the second inner rotating shaft; the second outer support frame 423 is provided with the second inner shaft fixing hole and the second outer rotating shaft, the second inner rotating shaft being fixedly connected in the second inner shaft fixing hole, and the second outer support frame 423 being connected to the bottom of the correction table panel 2 via the second outer rotating shaft.

[0096] In one embodiment, the correction table panel 2 includes hollow grooves 23, which are arranged between the correction table panel 2 and the desktop 3; multiple hollow grooves 23 are provided, and the hollow grooves 23 can be arranged around the angle support frame 4. In a specific embodiment, the radial length of the hollow grooves 23 can gradually increase in the direction away from the correction bracket 5, so that the correction table panel 2 has a small angle of inclination, such as 2 degrees, even when it is laid flat, making it easier for the user to read and study more comfortably.

[0097] In one embodiment, the correction table panel 2 further includes a support anti-slip plate 22, which is disposed close to the adaptive support 1 and can limit the rotation angle of the adaptive support 1 in one direction to prevent the adaptive support 1 from rotating too much.

[0098] In one embodiment, the correction table panel 2 further includes a support frame groove 24, a support frame anti-slip plate 25, a support frame fixing structure 26, and a support frame rotation port 27. The angle support frame 4 is accommodated in the support frame groove 24. The support frame anti-slip plate 25 is disposed close to the angle support frame 4. The angle support frame 4 is embedded in the support frame fixing structure 26 so that the angle support frame 4 is rotatably connected to the correction table panel 2. The end of the angle support frame 4 away from the support frame fixing structure 26 is provided with a support frame rotation port 27, so that the user can easily remove the angle support frame 4 from the support frame rotation port 27 to change the tilt angle of the correction table panel 2.

[0099] The terminology and expressions used herein are for descriptive purposes only and this patent should not be limited to them. The use of these terms and expressions does not imply the exclusion of any illustrative and descriptive equivalent features (or parts thereof), and it should be recognized that various possible modifications should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be considered to cover all such equivalents.

[0100] In this specification, references to "an embodiment" or "a specific implementation" mean that a particular feature, structure, or characteristic described in connection with that embodiment / specific implementation is included in at least one embodiment / specific implementation of this patent. Therefore, the phrase "in one embodiment / specific implementation" appearing in various places in this specification does not necessarily refer to the same embodiment / setting, but rather to potentially different embodiments. Furthermore, specific features, structures, or characteristics may be combined in one or more embodiments / settings in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0101] Similarly, it should be understood that in the above description of exemplary embodiments / specific implementations of this patent, various features of this patent are sometimes combined in a single embodiment / specific implementation or its figures and descriptions, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various patent aspects. However, except for expressly stated instructions to the contrary or obvious technical contradictions or exclusions, the method of description of this patent should not be construed as reflecting an intention that the claimed features are more than expressly stated in each claim. Therefore, the claims following the detailed description are expressly incorporated herein, and each claim exists independently as a separate embodiment / specific implementation of this patent.

[0102] Furthermore, while some embodiments / specific implementations described herein include, but are not limited to, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to be within the scope of this patent and form different embodiments / specific implementations, as will be understood by those skilled in the art. For example, in the following claims, embodiments / specific implementations of any claim can be used in any combination.

Claims

1. An adjustable posture correction table, the posture correction table being arranged on a desktop, the posture correction table comprising a table panel, a correction bracket, and an angle support frame, the table panel being used to place learning tools, the correction bracket being fixed to the table panel to provide guidance for correct sitting posture, and the angle support frame being connected to the table panel to change the tilt angle of the table panel, characterized in that... The posture correction platform also includes an adaptive support, which abuts against at least two sides of the desktop board, and the contact surface between the adaptive support and the desktop board is provided with an anti-slip pad.

2. The adjustable posture correction table according to claim 1, characterized in that, The adaptive support is positioned close to the corrective bracket. The anti-slip pads include anti-slip pads for front desktop contact and anti-slip pads for side desktop contact; The front desktop contact anti-slip pad and the side desktop contact anti-slip pad abut against the desktop board at an angle; The adaptive support includes an anti-slip pad for the correction table, which is disposed at the contact surface between the adaptive support and the correction table panel.

3. The adjustable posture correction table according to claim 1, characterized in that, The adaptive bracket is equipped with a rotating shaft. The correction table panel includes a rotating shaft fixing structure. The rotating shaft is fixed in the rotating shaft fixing structure so that the adaptive bracket is connected to the correction table panel through the rotating shaft.

4. The adjustable posture correction table according to claim 3, characterized in that, At least two adaptive supports are provided. The adaptive support includes a first adaptive support and a second adaptive support. The first adaptive support and the second adaptive support are arranged symmetrically.

5. The adjustable posture correction table according to claim 1, characterized in that, The angle support frame includes an inner support frame, an inner anti-slip pad, an outer support frame, and an outer anti-slip pad; The inner anti-slip pad is located at the position where the inner support frame contacts the desktop panel; The outer anti-slip pad is positioned at the contact point between the outer support frame and the desktop panel; When the posture correction table is tilted on the desktop, the inner support frame or the outer support frame can support the correction table panel at an angle.

6. The adjustable posture correction table according to claim 5, characterized in that, The outer support frame includes an inner shaft fixing hole and an outer rotating shaft; The inner support frame includes an inner rotating shaft; The inner rotating shaft can be embedded in the inner shaft fixing hole so that the inner support frame can be connected to the outer support frame; The outer support frame is connected to the correction table panel via the outer rotating shaft; When the posture correction table is placed flat on the desktop, the inner support frame is located inside the outer support frame.

7. The adjustable posture correction table according to claim 1, characterized in that, At least two angle support frames shall be provided. The angle support frame includes a first angle support frame and a second angle support frame; The first angle support frame and the second angle support frame are arranged symmetrically.

8. The adjustable posture correction table according to claim 1, characterized in that, The correction table panel includes a hollow groove, which is arranged between the correction table panel and the desktop panel; The hollow protrusions are provided in multiple ways, and the hollow protrusions are arranged around the angle support frame.

9. The adjustable posture correction table according to claim 8, characterized in that, The correction table panel also includes a support anti-slip plate, which is positioned close to the adaptive support.

10. The adjustable posture correction table according to claim 8, characterized in that, The correction table panel also includes a support frame groove, a support frame anti-slip plate, a support frame fixing structure, and a support frame rotation port. The angle support frame is accommodated in the support frame groove; The anti-slip plate of the support frame is positioned close to the angle support frame; The angle support frame is embedded in the support frame fixing structure so that the angle support frame is rotatably connected to the correction table panel. The angle support frame is provided with a rotation port at one end away from the support frame fixing structure, so that the angle support frame can be removed from the rotation port to change the tilt angle of the correction table panel.

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