Multifunctional veneer clamp

Abstract

A multifunctional single plate clamp comprises a single plate body, a hovering clamp is fixed to one end of the single plate body, the hovering clamp comprises a rotating cover plate and a fixing plate, and a torsional spring and a ratchet hovering structure are arranged between the rotating cover plate and the fixing plate; a force application part is arranged at the rear end of the rotating cover plate, the force application part comprises an extension table and an elastic clamp which are oppositely arranged up and down, a writing tool accommodating space is arranged between the extension table and the elastic clamp, and a writing tool is clamped in the accommodating space; the pen container has the advantages that the writing tools can be fixed and stored, additional carrying is not needed, and use is convenient.

Description

Technical Field

[0001] This application relates to the technical field of board clips, specifically to a multifunctional single board clip. Background Technology

[0002] The function of a single-board clip is to clamp and release documents by setting a clamp on a single board and opening and closing the clamp, which can facilitate the organization and collection of documents and make them easy to access. The traditional single-board clip structure uses the torsion force of a torsion spring to achieve clamping and releasing actions. This clamp structure is complicated to operate, requires two hands, and the angle opening needs to be maintained manually on the clamp at all times, which is inconvenient. In order to improve these defects and shortcomings, existing technologies have used a hovering structure to replace the traditional clamp, such as the hovering clamp and board clip disclosed in CN222179072U. Although this hovering clamp can achieve a fixed position, its hovering clamp structure is complex and can only achieve hovering at a fixed opening angle. Moreover, more importantly, when using a single-board clip, it is often necessary to use a writing instrument at the same time. The above-mentioned hovering structure cannot fix the writing instrument, which can easily lead to the loss of the writing instrument or require carrying it separately, causing inconvenience. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, this application provides a multi-functional single-board clip that can fix and store writing instruments without the need for additional carrying and is easy to use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a multifunctional single-board clamp, including a single-board body, one end of which is fixed with a suspension clamp, the suspension clamp including a rotating cover plate and a fixed plate, a torsion spring and a ratchet suspension structure being provided between the rotating cover plate and the fixed plate; a force-applying part is provided at the rear end of the rotating cover plate, the force-applying part including an extension platform and an elastic clamp arranged opposite to each other, a writing tool accommodating space being provided between the extension platform and the elastic clamp, and the writing tool being clamped in the accommodating space.

[0005] By adopting the above structure, this application provides an extension platform and an elastic clip at the rear end of the rotating cover plate, which can hold the writing tool. Thus, the writing tool can be clamped and fixed within the accommodating space formed by the two. In this way, the writing tool can be taken out and fixed from the single-board clip at any time during the use of the single-board clip, without the need to carry it separately, which reduces the risk of losing the writing tool and makes it more convenient and faster to use.

[0006] Furthermore, the extension platform, elastic clip, and rotating cover are integrated into one body. This structure enhances the overall strength of the rotating cover, preventing damage even during repeated pressing and force application, thus maintaining effective clamping of the writing instrument.

[0007] Furthermore, the extension platform is provided with a downwardly protruding arc-shaped surface, and the distance between the arc-shaped surface and the elastic clamp is not greater than the outer diameter of the writing instrument. With this structure, deformation can be generated through this distance during the clamping process of the writing instrument, so that the writing instrument is more firmly clamped between the two and is not easy to loosen.

[0008] Furthermore, the elastic clip includes a first bending portion and a second bending portion. One end of the first bending portion is connected to the body of the rotating cover plate, and the other end is sequentially connected to the second bending portion. The bending directions of the first bending portion and the second bending portion are opposite. This structure can give the elastic clip sufficient elasticity and provide a stable clamping force for the writing instrument. In addition, setting the directions of the two bending portions in opposite directions, in conjunction with the extension platform, facilitates gripping and clamping of the writing instrument.

[0009] Furthermore, the bending direction of the first bend is downward (bending away from the extension platform), and the bending arc of the first bend is adapted to the outer diameter of the writing instrument. With this structure, it is convenient for the writing instrument to be clamped and fixed between the first bend and the extension platform. The matching contours of the two make it easier to hold the writing instrument securely.

[0010] Furthermore, the bending direction of the second bend is upward (bending towards the side near the extension platform), and the distance between the second bend and the extension platform is not greater than the outer diameter of the writing instrument. With this structure, when it is necessary to clamp the writing instrument, the writing instrument is pushed in from the distance between the second bend and the extension platform, and pushed into the first bend under the action of deformation force to achieve clamping. Then the second bend returns to its original position, and the writing instrument will not come out from the distance between the second bend and the extension platform.

[0011] Furthermore, the elastic clip has a hollowed-out section on its body. With this structure, the single-board clip can be suspended through the hollowed-out section after use, further expanding the function of the single-board clip.

[0012] Furthermore, the hollowed-out portion is at least provided on the second bent portion; with this structure, even when the writing tool is clamped between the elastic clip and the extension platform, the single-board clip can still achieve the hanging function due to the position of the hollowed-out portion.

[0013] Furthermore, the elastic clip is located at the center of the extension platform along its length. This arrangement allows the writing tool to remain balanced when held. Moreover, the central position makes it more convenient to apply force to the extension platform and the elastic clip.

[0014] Furthermore, the first bending portion includes a first bending strip and a second bending strip connected to the body of the rotating cover plate. The first bending strip and the second bending strip are spaced apart along the width direction of the rotating cover plate (i.e., the width extension direction of the upper end of the single plate body), and the spacing forms the hollow portion. This structure can improve the elastic deformation force of the overall elastic clamp, making it easier to hold the writing instrument. In addition, by setting the first bending strip and the second bending strip apart from each other, sufficient support points can be provided for the writing instrument, making it less likely for the writing instrument to tilt. Attached Figure Description

[0015] Figure 1 This application presents a structural schematic diagram of the first view of the multifunctional single-board clip.

[0016] Figure 2 This application presents a structural schematic diagram of the second view of the multifunctional single-board clip.

[0017] Figure 3 The structural schematic diagram of the third view of the multifunctional single-board clip of this application.

[0018] Figure 4 This application presents a structural schematic diagram of the first exploded view of the multifunctional single-board clip.

[0019] Figure 5 This application presents a structural schematic diagram of the second exploded view of the multifunctional single-board clip.

[0020] Figure 6 This application presents a partial side view of the structural schematic diagram of the multifunctional single-board clip.

[0021] Figure 7 This application presents a structural schematic diagram of the cross-sectional view of the multifunctional single-board clip.

[0022] Figure 8 This application presents a schematic diagram of the structure of the multifunctional single-board clip, which combines the rotating cover with the writing instrument.

[0023] Figure 9 This application presents a schematic diagram of the rotating cover plate of the multifunctional single-board clamp.

[0024] As shown in the attached diagram: 1. Single-board body, 2. Suspension clamp, 3. Rotating cover plate, 301. Extension platform, 3011. Arc-shaped surface, 302. Elastic clamp, 3021. First bending part, 3022. Second bending part, 3023. Hollowed-out part, 3024. First bending strip, 3025. Second bending strip, 303. Second ratchet tooth, 304. Fitting bushing, 4. Fixing plate, 401. Fitting shaft, 402. Pressing end, 5. Torsion spring, 6. Ratchet suspension structure, 601. Ratchet shaft, 6011. First ratchet tooth, 602. Straight spring, 603. Pressing end, 7. Writing instrument, 8. Accommodation space, 9. Document (paper). Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are merely preferred embodiments, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this invention.

[0026] Furthermore, it should be noted that when a component is described as being "fixed to" another component, it can be directly on the other component or it may be fixed by another intermediate component. When a component is described as being "connected to" another component, it can be directly connected to the other component or it may be fixed by another intermediate component. When a component is described as being "set on" another component, it can be set directly on the other component or it may be fixed by another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only; the front and rear ends of this application are defined with the end where the pen tip is extended in the use state as the front and the end where the pressing part is located as the rear. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] As attached Figure 1-9As shown, this application discloses a multifunctional single-board clamp, comprising a single-board body 1. A suspension clamp 2 is fixed to one end of the single-board body 1. The suspension clamp 2 includes a rotating cover plate 3 and a fixed plate 4. A torsion spring 5 and a ratchet suspension structure 6 are disposed between the rotating cover plate 3 and the fixed plate 4. A force-applying part is provided at the rear end of the rotating cover plate 3. The force-applying part includes an extension platform 301 and an elastic clamp 302 arranged opposite each other. A accommodating space 8 for a writing instrument 7 is provided between the extension platform 301 and the elastic clamp 302, and the writing instrument 7 is clamped within the accommodating space 8. Specifically, the single-board clamp of this application... The fixed plate 4 and the rotating cover plate 3 can rotate relative to each other. The fixed plate 4 can be fixed to the single board body 1 by means of rivets, etc. Then, by flipping the rotating cover plate 3 relative to the fixed plate 4, the hovering clamp 2 is flipped and hovered, so that the document 9 (such as paper) is placed into the opening of the hovering clamp 2. Then, the paper is clamped by the action of the ratchet hovering structure 6 and the torsion spring 5. The force application part at the rear end of the rotating cover plate 3 is located on the opposite side of the single board body 1, that is, the side away from the single board body 1. The rotating cover plate 3 is flipped and opened relative to the fixed plate 4 by the upper and lower gripping extension platform 301 and the elastic clamp 302.

[0028] To clearly demonstrate the hovering clamp in the multifunctional single-board clamp of this application, an example of the hovering clamp is described in detail:

[0029] As attached Figure 1-7 As shown, the hovering clamp 2 in the multifunctional single-board clip of this application includes a rotating cover plate 3 and a fixed plate 4, which are circumferentially connected. The torsion spring 5 between the rotating cover plate 3 and the fixed plate 4 is used to drive the rotating cover plate 3 and the fixed plate 4 to clamp each other (specifically, the rotating cover plate 3 is flipped relative to the fixed plate 4 to a certain opening angle, and the force on the rotating cover plate 3 is released. At this time, the restoring force of the torsion spring 5 can drive the rotating cover plate 3 to clamp the fixed plate 4, thus securing the folder between the two). The ratchet hovering structure 6 between the fixed plate 4 and the rotating cover plate 3 can be used for the rotating cover plate 3 to flip and hover relative to the fixed plate 4. That is, the ratchet hovering structure 6 can make the rotating cover plate 3 circumferentially flip relative to the fixed plate 4 to a certain angle through the meshing of the ratchet teeth, and then the angle after flipping is fixed (hovering), realizing the hovering and angle fixation of the rotating cover plate 3 relative to the fixed plate 4 at this angle, so as to facilitate the placement of the document in the opening formed by the flipping of the two.

[0030] More specifically, see attached Figure 4-5 and Figure 7As shown, the ratchet suspension structure 6 described in this application includes a ratchet shaft 601 and a straight spring 602. The ratchet shaft 601 is provided with a first ratchet tooth 6011, and the rotating cover plate 3 is provided with a second ratchet tooth 303. The first ratchet tooth 6011 of the ratchet shaft 601 meshes with the second ratchet tooth 303 through the pushing action of the straight spring 602. Specifically, in this example, the first ratchet tooth 6011 on the ratchet shaft 601 and the second ratchet tooth 303 on the rotating cover plate 3 are axially meshed with each other through the pushing action of the straight spring 602. See the attached diagram for details. Figure 7 As shown in the cross-sectional view; with this structure, when the rotating cover plate 3 flips relative to the fixed plate 4, the mutual pushing of the two ratchet teeth will drive the ratchet shaft 601 to axially push the straight spring 602 for elastic compression. During this process, the first ratchet tooth 6011 slides axially relative to the second ratchet tooth 303 following the ratchet shaft 601, and the positions of the meshing teeth on the two ratchet teeth are misaligned, allowing the rotating cover plate 3 to smoothly flip circumferentially relative to the fixed plate 4. When it flips to the appropriate position, the flipping stops; at this time, the straight spring 602 returns to its original position and axially pushes the first ratchet tooth 6011 and the rotating cover plate. The second ratchet teeth 303 on plate 3 are stably engaged with each other, achieving the suspension and fixation of the flipped position. At this time, the torsion spring 5 undergoes torsional deformation under the action of the ratchet teeth meshing force. At this time, the document 9 can be placed within the flipping angle formed between the fixed plate 4 and the rotating cover plate 3. Then, press one end of the ratchet shaft 601 in the axial direction, so that it pushes the straight spring 602 to compress again. At this time, the two meshing ratchet teeth temporarily disengage. At this time, the torsion spring 5 does not have the binding force of the ratchet teeth meshing, and can automatically return to drive the rotating cover plate 3 to clamp each other, thereby tightening the folder placed between them.

[0031] As attached Figure 4-5 As shown, the fixing plate 4 of this application is provided with a fitting shaft 401 (which can be a fitting shaft to facilitate the engagement of the torsion spring) on ​​one side along its length. The torsion spring 5 is sleeved on the fitting shaft 401, and the straight spring 602 is located in the shaft hole of the fitting shaft 401 (e.g., Figure 7As shown, one end of the straight spring 602 abuts against the inner end wall of the shaft hole, and the other end abuts against one axial end of the ratchet shaft 601. One end of the ratchet shaft 601 is fitted into the fitting shaft 401 and abuts against the straight spring 602. The inner wall of the fitting shaft 401 is provided with a keyway, and the corresponding outer surface of the ratchet shaft 601 is provided with a spline that slides with it. A fitting shaft sleeve 304 is provided at each end of the rotating cover plate 3 along its length. The pressing end 603 of the ratchet shaft 601 (i.e., the pressed end that temporarily separates the first ratchet tooth 6011 and the second ratchet tooth 303 when the document needs to be clamped, so that the torsion spring 5 is not restrained and can drive the rotating cover plate 3 and the fixed plate 4 to clamp the document) and one end of the fitting shaft 401 are respectively fitted into the corresponding fitting shaft sleeves 304 at both ends (see Appendix for details). Figure 7 As shown, the pressing end 603 of the ratchet shaft 601 and the end of the fitting shaft 401 that fits with the fitting shaft sleeve 304 are arranged opposite to each other; with this structure, the torsion spring 5 can be limited between the fitting shaft 401 and the ratchet shaft 601 to prevent them from disengaging; and by fitting the fitting shaft sleeve 304 with the pressing end 603 of the ratchet shaft 601 and one end of the fitting shaft 401, the circumferential relative rotation of the rotating cover plate 3 and the fixed plate 4 can be achieved.

[0032] As attached Figure 4-5 and Figure 7 As shown, the second ratchet tooth 303 described in this application is located on the shaft wall of the sleeve 304 at one end, and the second ratchet tooth 303 extends along the axial direction. The corresponding first ratchet tooth 6011 and the second ratchet tooth 303 extend and mesh axially relative to each other. That is, the two ratchet teeth are arranged axially opposite to each other, and under the pushing action of the straight spring 602, they achieve axial meshing with each other. In the flipping process, the ratchet shaft 601 is pushed to slide axially, so as to realize the smooth circumferential rotation of the rotating cover plate 3 and the suspension again. Moreover, through this axial ratchet tooth meshing, the axial drive of the ratchet shaft 601 is realized in the flipping process, which simplifies the structure and saves space.

[0033] The working principle and process of the ratchet suspension structure in this example are as follows: First, the straight spring is pushed into the shaft hole along the axial direction of the fitting shaft. Then, the torsion spring is sleeved on the outer peripheral wall of the fitting shaft, with one end abutting against the stepped surface. Next, the ratchet shaft is inserted into the shaft hole of the fitting shaft and abuts against the straight spring. The spline on the ratchet shaft and the keyway on the wall of the fitting shaft hole slide against each other to circumferentially limit the ratchet shaft and the fixed plate. Then, the pressing end of the ratchet shaft is pressed to shorten its length and is placed into the two ends of the rotating cover plate. Between the fitting bushings, the pressing end and the fitting end of the fitting shaft each correspond to a fitting bushing, which is then inserted. A straight spring pushes the fixing plate and the ratchet shaft, causing the assembly formed by these two parts to fit onto the two fitting bushings, forming a complete hovering structure. Under the pushing force of the straight spring, the first ratchet tooth (ratchet) and the second ratchet tooth mesh axially with each other. The ratchet teeth have a disc-shaped structure, arranged around the disc. The fixing plate can be provided with mounting holes to fix the ratchet hovering structure to the single plate body that holds the documents. When it is necessary to place documents... With one hand, grip the force-applying part and apply force. During this process, the rotating cover plate rotates circumferentially relative to the fixed plate. Due to the circumferential limitation between the fixed plate and the ratchet shaft, the first and second ratchet teeth slide circumferentially out of alignment. This compresses the ratchet shaft axially relative to the fixed plate and the rotating cover plate, pushing the straight spring inward and compressing it axially until it reaches the desired position. At this point, the rotation stops. Under the reverse pushing force of the straight spring, the first and second ratchet teeth firmly mesh, achieving suspension at this position. The rotating cover plate and... The fixed plates form a certain opening angle between each other to place documents. At this time, the torsion spring is in a torsional deformation state. After the documents are placed, press the pressing end of the ratchet shaft. At this time, the straight spring is pushed inward and compressed. The first ratchet tooth slides axially inward and temporarily separates from the second ratchet tooth. At this time, the torsion spring has no binding force and can return to its original position, thereby driving the rotating cover plate to clamp the fixed plate and tighten the folder between them. After clamping, under the pushing action of the straight spring's extension and restoring force, the two ratchet teeth mesh with each other again, waiting for the next flipping operation.

[0034] By adopting the above structure, this application provides an extension platform and an elastic clip at the rear end of the rotating cover plate, which can hold the writing tool. Thus, the writing tool can be clamped and fixed within the accommodating space formed by the two. In this way, the writing tool can be taken out and fixed from the single-board clip at any time during the use of the single-board clip, without the need to carry it separately, which reduces the risk of losing the writing tool and makes it more convenient and faster to use.

[0035] As an example, see attached Figure 4-5 and attached Figure 8-9As shown, the extension platform 301, the elastic clip 302, and the rotating cover plate 3 described in this application are integrally formed, meaning that all three can be manufactured by injection molding. This structure enhances the overall strength of the rotating cover plate, preventing damage even during repeated pressing and force application, thus maintaining effective clamping of the writing instrument. Furthermore, this structure ensures that the positions of the extension platform 301 and the elastic clip 302 are fixed, maintaining a stable clamping force on the writing instrument at all times.

[0036] As attached Figure 6 As shown, the extension platform 301 described in this application is provided with a downwardly protruding arc-shaped surface 3011. The distance between the arc-shaped surface 3011 and the elastic clamp 302 is not greater than the outer diameter of the writing tool 7. The specific writing tool, such as a ballpoint pen or fountain pen, has a cylindrical shape. The above-mentioned distance setting allows the writing tool to be pushed by the writing tool during the clamping process, thereby generating deformation and clamping the writing tool more firmly between the two, making it less likely to loosen.

[0037] As attached Figure 1 , Figure 3 , Figure 5-6 , Figure 8-9 As shown, the elastic clip 302 described in this application includes a first bending portion 3021 and a second bending portion 3022. One end of the first bending portion 3021 is connected to the body of the rotating cover plate 3, and the other end is sequentially connected to the second bending portion 3022. The bending directions of the first bending portion 3021 and the second bending portion 3022 are opposite. Specifically, the bending direction of the first bending portion 3021 is downward, and the bending direction of the second bending portion 3022 is upward. They can cooperate with the arc-shaped surface 3011 of the extension platform 301 to form an opening for guiding and holding the writing instrument 7. With this structure, the elastic clip 302 can be given sufficient elasticity, providing the writing instrument 7 with a stable clamping force. In addition, setting the directions of the two bending portions to be opposite, and cooperating with the extension platform 301, facilitates gripping and clamping of the writing instrument 7.

[0038] As attached Figure 6 As shown, the bending direction of the first bending portion 3021 described in this application is downward (i.e., bending towards the side away from the extension stage 301), and the bending arc of the first bending portion 3021 is adapted to the outer diameter of the writing instrument 7. With this structure, it is convenient for the writing instrument to be clamped and fixed between the first bending portion 3021 and the extension stage 301. The contours of the two are adapted to each other, which is more conducive to the stable clamping of the writing instrument 7.

[0039] As attached Figure 6As shown, the bending direction of the second bending portion 3022 described in this application is upward (i.e., bending towards the side closer to the extension platform 301), and the distance between the second bending portion 3022 and the extension platform 301 is not greater than the outer diameter of the writing tool 7. With this structure, when it is necessary to clamp the writing tool 7, the writing tool 7 is pushed in from the distance between the second bending portion 3022 and the extension platform 301, and pushed into the first bending portion 3021 under the action of deformation force to achieve clamping. Then the second bending portion 3022 is reset, and at this time the writing tool 7 will not come out from the distance between the second bending portion 3022 and the extension platform 301.

[0040] As attached Figure 1 , Figure 3 , Figure 5 , Figure 8-9 As shown, the elastic clip 302 described in this application has a hollow part 3023 on its body, that is, the elastic clip 302 has a hollow structure with a hollow hole in the middle. With this structure, the single board clip can be suspended through the hollow part 3023 after the single board clip is used, which further expands the function of the single board clip.

[0041] As attached Figure 1 , Figure 3 , Figure 5 , Figure 8-9 As shown, the hollowed-out portion 3023 described in this application is at least provided on the second bent portion 3022; since the second bent portion 3022 is located at the upper end of the single-board clamp when it is placed vertically, when it is suspended, even if the writing tool 7 is clamped between the elastic clamp 302 and the extension platform 301, the single-board clamp can still achieve the suspension function due to the setting of the hollowed-out portion 3023.

[0042] As attached Figure 3 As shown, the elastic clip 302 described in this application is located at the center of the length extension direction of the extension platform 301; specifically, the elastic clip 302 is located at the center of the rotating cover plate 3 along the width extension direction of the upper end of the single board body 1; with this setting, when clamping the writing tool 7, the writing tool 7 can be kept in balance; moreover, the central setting is more convenient in the process of applying force to the extension platform 301 and the elastic clip 302.

[0043] As attached Figure 3As shown, the first bending portion 3021 of this application includes a first bending strip 3024 and a second bending strip 3025 connected to the body of the rotating cover plate 3. The first bending strip 3024 and the second bending strip 3025 are spaced apart along the width direction of the rotating cover plate 3, and the spaced apart forms the hollow portion 3023. With this structure, the elastic deformation force of the overall elastic clamp 302 can be improved, which facilitates the clamping of the writing instrument. In addition, by setting the first bending strip 3024 and the second bending strip 3025 apart from each other, sufficient support points can be provided for the writing instrument 7, and the writing instrument 7 is not easy to tilt.

[0044] This multifunctional single-board clip features a hovering clamp structure with an extension platform and elastic clips to hold writing instruments. Writing instruments can be directly clamped onto the clip, eliminating the need for carrying them separately, making it convenient and less prone to loss. Furthermore, the elastic clip has a perforated structure, allowing the clip to be suspended for easy storage. The clamp itself is a ratchet-type hovering clamp, capable of hovering at any desired opening angle to accommodate documents of varying thicknesses. The clamping process requires only pressing down on the end, utilizing the deformation force of a torsion spring to hold the document, making operation simple and convenient.

Claims

1. A multifunctional single-board clip, characterized in that: The system includes a single-board body (1), one end of which is fixed with a hovering clamp (2). The hovering clamp (2) includes a rotating cover plate (3) and a fixed plate (4). A torsion spring (5) and a ratchet hovering structure (6) are provided between the rotating cover plate (3) and the fixed plate (4). A force-applying part is provided at the rear end of the rotating cover plate (3). The force-applying part includes an extension platform (301) and an elastic clamp (302) arranged opposite to each other. A space (8) for accommodating a writing instrument (7) is provided between the extension platform (301) and the elastic clamp (302). The writing instrument (7) is clamped in the space (8).

2. The multifunctional single-board clip according to claim 1, characterized in that: The extension platform (301), the elastic clamp (302), and the rotating cover plate (3) are integrally formed.

3. The multifunctional single-board clip according to claim 1, characterized in that: The extension platform (301) is provided with a downwardly protruding arc-shaped surface (3011), and the distance between the arc-shaped surface (3011) and the elastic clip (302) is not greater than the outer diameter of the writing instrument (7).

4. The multifunctional single-board clip according to claim 1, characterized in that: The elastic clip (302) includes a first bending portion (3021) and a second bending portion (3022). One end of the first bending portion (3021) is connected to the body of the rotating cover plate (3), and the other end is sequentially connected to the second bending portion (3022). The bending directions of the first bending portion (3021) and the second bending portion (3022) are opposite.

5. The multifunctional single-board clip according to claim 4, characterized in that: The bending direction of the first bending portion (3021) is downward, and the bending arc of the first bending portion (3021) is adapted to the outer diameter of the writing instrument (7).

6. The multifunctional single-board clip according to claim 4, characterized in that: The bending direction of the second bending portion (3022) is upward, and the distance between the second bending portion (3022) and the extension platform (301) is not greater than the outer diameter of the writing instrument (7).

7. The multifunctional single-board clip according to claim 4, characterized in that: The elastic clip (302) has a hollowed-out portion (3023) on its body.

8. The multifunctional single-board clip according to claim 7, characterized in that: The hollow portion (3023) is provided at least on the second bent portion (3022).

9. The multifunctional single-board clip according to claim 1, characterized in that: The elastic clip (302) is located at the center of the length extension direction of the extension platform (301).

10. The multifunctional single-board clip according to claim 7, characterized in that: The first bending portion (3021) includes a first bending strip (3024) and a second bending strip (3025) connected to the body of the rotating cover plate (3). The first bending strip (3024) and the second bending strip (3025) are spaced along the width direction of the rotating cover plate (3), and the spaced interval forms the hollow portion (3023).

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