A clamping structure and a movable study table

Abstract

The present invention provides a clamping structure and a movable learning table, comprising a connecting member, and a first clamping head and a second clamping head respectively arranged at both ends of the connecting member, wherein the second clamping head comprises a first clamping layer, a second clamping layer, and a third clamping layer arranged in sequence from the outside to the inside; the third clamping layer is embedded in the second clamping layer, and the third clamping layer abuts against the clamped object; the first clamping layer and the second clamping layer are slidably connected; the friction between the first clamping layer and the second clamping layer is less than the friction between the third clamping layer and the clamped object; the lower end of the first clamping layer contacts the lower end of the second clamping layer through an inclined surface; the inclined surface gradually approaches the clamped object from top to bottom. The clamping structure provided by the present invention improves the reliability of clamping without causing damage to the clamped object.

Description

Technical Field

[0001] The present invention relates to the technical field of learning tools, in particular to a clamping structure and a movable learning table. Background Art

[0002] The study table is a new and scientific learning auxiliary tool. Compared with the traditional desk, the desktop of the study table is more in line with the characteristics of ergonomics and human body mechanics, and is more helpful for users to maintain a correct and comfortable reading and writing posture.

[0003] The desktops of ordinary desks are mostly long strips of board. The desktops of ordinary desks do not have the ergonomic and biomechanical characteristics of study desks, and therefore are not conducive to users maintaining a correct and comfortable reading and writing posture.

[0004] For some families who have already purchased ordinary desks, if they purchase a study table separately, on the one hand, placing the study table separately will further reduce the indoor usable area, and on the other hand, purchasing the study table will make the original desk idle, causing waste. For this reason, there are currently movable study tables on the market that are suitable for installation on ordinary desks. Such movable study tables usually include a bracket and a desktop connected to the bracket. By connecting the bracket to the desktop of the ordinary desk, the ordinary desk can be changed into a study table suitable for children.

[0005] However, the bracket of the movable study table usually needs to be connected to the desktop of an ordinary desk by screws, which may cause damage to the desktop of the ordinary desk during the connection process. Summary of the invention

[0006] The technical problem solved by the present invention is that the bracket of the current movable study table may damage the desktop of the ordinary desk during the process of being connected with the ordinary desk.

[0007] In order to solve the above problems, the present invention provides a clamping structure, comprising a connecting member, and a first clamping head and a second clamping head respectively arranged at both ends of the connecting member, wherein the first clamping head and the second clamping head are used to clamp the clamped object, wherein:

[0008] The second clamping head comprises a first clamping layer, a second clamping layer, and a third clamping layer which are sequentially arranged from the outside to the inside;

[0009] The third clamping layer is embedded in the second clamping layer, and the third clamping layer abuts against the clamped object;

[0010] The first clamping layer is slidably connected to the second clamping layer;

[0011] The friction force between the first clamping layer and the second clamping layer is smaller than the friction force between the third clamping layer and the clamped object;

[0012] The lower end of the first clamping layer contacts the lower end of the second clamping layer through an inclined surface;

[0013] The inclined surface gradually approaches the clamped object from top to bottom.

[0014] When an upward pulling force is applied to the clamping structure within a certain range, the force applied by the second clamping head to the clamped object is increased, thereby preventing the clamping structure from being pulled out of the clamped object and improving the connection strength between the clamping structure and the clamped object.

[0015] Optionally, the angle between the inclined surface and the vertical surface is 10° to 20°, which can prevent the angle from being too large, making it difficult to install the clamping structure on the clamped object, and can prevent the angle from being too small, making it easy to pull the clamping structure off the clamped object.

[0016] Optionally, the first clamping layer is made of metal, the second clamping layer is made of engineering plastic, and the third clamping layer is made of rubber. On the one hand, the friction between the rubber and the clamped object is greater than the friction between the first clamping layer and the second clamping layer, and on the other hand, the rubber has a large elasticity and is in contact with the clamped object, thereby avoiding damage to the clamped object caused by the use of the clamping structure.

[0017] Optionally, an abutment plate arranged parallel to the upper surface of the clamped object is provided on the second clamping layer, and the abutment plate abuts against the upper surface of the clamped object.

[0018] Optionally, the first clamping layer and the second clamping layer are loosely matched via rivets.

[0019] Optionally, the connecting member includes two first connecting rods arranged in parallel, and a second connecting rod arranged between the two first connecting rods, the second connecting rod is perpendicular to the first connecting rods, both ends of the second connecting rod are respectively connected to the two first connecting rods, and the second connecting rod is located at one end close to the second clamping head.

[0020] Optionally, the second connecting rod is connected to the second clamping head via bolts.

[0021] Optionally, a screw hole is provided in the second connecting rod, a first through hole is provided on the second clamping layer, an inner diameter of the first through hole is larger than an outer diameter of the bolt, and the bolt passes through the screw hole and the first through hole in sequence to be connected with the first clamping layer.

[0022] Optionally, the first connecting rod has a hollow structure; fourth connecting rods matching the first connecting rod are provided at both ends of the first clamping layer, and the fourth connecting rod is suitable for being inserted into the first connecting rod so as to be slidably connected to the first connecting rod.

[0023] Another object of the present invention is to provide a movable study table, comprising the clamping structure as described above, and a movable tabletop connected to the clamping structure.

[0024] Compared with the prior art, the clamping structure provided by the present invention has the following advantages:

[0025] The clamping structure provided by the present invention, by arranging the first clamping layer, the second clamping layer and the third clamping layer in the second clamping head, enables when an upward pulling force is applied to the clamping structure within a certain range, the force applied by the second clamping head to the clamped object is increased, thereby avoiding the clamping structure from being pulled out of the clamped object, improving the connection strength between the clamping structure and the clamped object, and improving the reliability of clamping without causing damage to the clamped object. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A side view of the clamping structure of the present invention;

[0027] Figure 2 is a cross-sectional view of the second clamping head of the present invention;

[0028] Figure 3 An exploded view of the clamping structure of the present invention;

[0029] Figure 4 The figure is a simplified assembly diagram of the connecting member and the second clamping head according to the present invention.

[0030] Description of reference numerals:

[0031] 1-connecting piece; 11-first connecting rod; 12-second connecting rod; 121-screw hole; 2-first clamping head; 3-second clamping head; 31-first clamping layer; 311-fourth connecting rod; 32-second clamping layer; 321-abutting plate; 322-first through hole; 323-second through hole; 33-third clamping layer; 34-inclined surface; 35-rivet; 4-clamped object; 5-bolt. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are only used to simplify the description and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" the first feature may include that the first feature is in direct contact with the second feature, or may include that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] In order to solve the problem that the bracket of the movable study table currently used on the ordinary desk will damage the desktop of the ordinary desk during the connection process with the ordinary desk, the present invention provides a clamping structure, see Figure 1 to Figure 4As shown, the clamping structure includes a connecting member 1, and a first clamping head 2 and a second clamping head 3 respectively arranged at both ends of the connecting member 1, the first clamping head 2 and the second clamping head 3 are used to clamp the clamped object 4, and the length of the connecting member 1 is determined according to the size of the clamped object 4, that is, by placing the clamped object 4 between the first clamping head 2 and the second clamping head 3, the first clamping head 2 and the second clamping head 3 are connected by the connecting member 1, so that the clamped object 4 is fixed between the first clamping head 2 and the second clamping head 3. When the clamping structure is used for a movable study table, the clamped object 4 is the desktop of an ordinary desk. By using the clamping structure, it is avoided to punch holes on the desktop of the ordinary desk, thereby avoiding damage to the desktop of the ordinary desk due to the installation of the movable study table.

[0038] In order to improve the connection strength between the clamping structure and the clamped object 4, the present application preferably improves the structure of at least one clamping head in the clamping structure. For details, see Figure 2 As shown, the present application preferably adopts an arbitrary structural form of the first clamping head 2, and the second clamping head 3 comprises a first clamping layer 31, a second clamping layer 32, and a third clamping layer 33 which are arranged in sequence from the outside to the inside; the "outside" in the present application specifically refers to the direction away from the clamped object 4, and on the contrary, the "inside" specifically refers to the direction close to the clamped object 4; the third clamping layer 33 is embedded in the second clamping layer 32, and the third clamping layer 33 is in contact with the clamped object 4; the first clamping layer 31 is slidably connected to the second clamping layer 32; the friction between the first clamping layer 31 and the second clamping layer 32 is less than the friction between the third clamping layer 33 and the clamped object 4; the lower end of the first clamping layer 31 is in contact with the lower end of the second clamping layer 32 through an inclined surface 34; the inclined surface gradually approaches the clamped object 4 from top to bottom.

[0039] The upper and lower in the present application specifically refer to the upper and lower parts of the clamping structure when it is in the installed state.

[0040] In order to achieve the contact between the lower end of the first clamping layer 31 and the lower end of the second clamping layer 32 through the inclined surface 34, the outer side of the lower end of the second clamping layer 32 and the inner side of the lower end of the first clamping layer 31 are both an inclined structure, and the inclination direction and inclination angle of the inclined structure are consistent with the inclined surface 34.

[0041] To facilitate the connection between the second clamping layer 32 and the third clamping layer 33, the present application preferably has the inner side of the lower end of the second clamping layer 32, i.e., the side connected to the third clamping layer 33, as a vertical plane structure, and a groove matched with the third clamping layer 33 is provided on the vertical plane structure. The connection between the second clamping layer 32 and the third clamping layer 33 is achieved by embedding the third clamping layer 33 in the groove.

[0042] The outer side of the lower end of the first clamping layer 31 can be a vertical surface structure or an inclined structure; the present application prefers that the outer side of the lower end of the first clamping layer 31 is an inclined structure, and the inclined structure can be consistent with the inclined surface 34 or inconsistent; by setting the inclined structure, on the one hand, the aesthetics of the clamping structure is improved, and on the other hand, by setting the inclined surface structure, the material used in the clamping structure is reduced, thereby reducing the cost and reducing the quality of the clamping structure.

[0043] At the same time, in order to facilitate the connection of the second clamping head 3, the upper ends of the first clamping layer 31 and the second clamping layer 32 in the present application are connected with connecting plates of vertical plate-like structures so as to facilitate mutual connection through the connecting plates.

[0044] When the clamping structure is used, the first clamping head 2 and the third clamping head 3, which are arranged opposite to each other, respectively apply forces pointing to the center direction of the clamped object 4 to the clamped object 4 from both ends of the clamped object 4, so that the clamping structure and the clamped object 4 maintain stability in the horizontal direction. When the horizontal force is applied to the clamping structure, it is not easy to remove the clamping structure from the clamped object 4.

[0045] When an upward pulling force is applied to the clamping structure, since the first clamping layer 31 and the second clamping layer 32 are slidably connected via the inclined surface 34, and the friction between the first clamping layer 31 and the second clamping layer 32 is smaller than the friction between the third clamping layer 33 and the clamped object 4, the relative position between the third clamping layer 33 and the clamped object 4 remains unchanged, and a sliding trend is generated between the first clamping layer 31 and the second clamping layer 32 at the inclined surface 34, distributed along the direction of the inclined surface 34 and pointing from the bottom to the top, that is, at the inclined surface 34 A force is generated between the first clamping layer 31 and the second clamping layer 32, which is distributed along the direction of the inclined surface 34 and points from the bottom to the top. Since the inclined surface 34 gradually approaches the clamped object 4 from top to bottom, the force generated at the inclined surface 34 will generate a component force pointing in the direction of the clamped object 4, so that the force applied by the second clamping head 3 to the clamped object 4 is the sum of the pre-tightening force generated by the third clamping layer 33 on the clamped object 4 and the component force generated at the inclined surface 34, thereby increasing the connection strength between the second clamping head 3 and the clamped object 4.

[0046] The clamping structure provided by the present invention, by arranging the first clamping layer 31, the second clamping layer 32 and the third clamping layer 33 in the second clamping head 3, when an upward pulling force is applied to the clamping structure within a certain range, the force applied by the second clamping head 3 to the clamped object 4 is increased, thereby avoiding the clamping structure from being pulled out of the clamped object 4, improving the connection strength between the clamping structure and the clamped object 4, and improving the clamping reliability without causing damage to the clamped object 4.

[0047] Through the clamping structure provided by the present invention, when a study table is needed, the movable table top that conforms to the characteristics of ergonomics and human body mechanics can be connected to the clamping structure, and then the clamping structure is connected to the table top of an ordinary desk, so that the existing ordinary desk can be transformed into a study table, and there is no need to purchase a relatively expensive study table, which not only reduces costs but also helps to save space; when the study table is not needed, the clamping structure can be removed from the table top of the ordinary desk. Since the clamping structure will not cause damage to the table top, after the clamping structure is removed, it will not affect the appearance and use of the ordinary desk.

[0048] The present application prefers that the angle between the inclined surface 34 and the vertical surface is 10° to 20°, and further prefers that the angle between the inclined surface 34 and the vertical surface is 15°. On the one hand, it avoids the angle being too large, which makes it difficult to install the clamping structure on the clamped object 4, and on the other hand, it avoids the angle being too small, which makes it easy to pull the clamping structure off the clamped object 4.

[0049] In order to make the friction between the first clamping layer 31 and the second clamping layer 32 smaller than the friction between the third clamping layer 33 and the clamped object 4, the present application preferably uses metal as the material of the first clamping layer 31 and engineering plastic as the material of the second clamping layer 32, and the engineering plastic is preferably PC engineering plastic; the material of the third clamping layer 33 is rubber; on the one hand, the friction between the rubber and the clamped object 4 is greater than the friction between the first clamping layer 31 and the second clamping layer 32, and on the other hand, the rubber has a large elasticity and is in contact with the clamped object 4, thereby avoiding damage to the clamped object 4 due to the use of the clamping structure; when the clamping structure is used for an ordinary desk, the protection of the ordinary desk desktop can be further improved.

[0050] For further information, see Figure 3 As shown, the second clamping layer 32 in the present application is provided with an abutment plate 321 arranged parallel to the upper surface of the clamped object 4 , and the abutment plate 321 abuts against the upper surface of the clamped object 4 .

[0051] By providing the abutment plate 321, on the one hand, displacement between the clamping structure and the clamped object 4 can be avoided when downward pressure is applied to the clamping structure, thereby affecting the stability of the clamping structure. On the other hand, the abutment plate 321 can be used to position the clamping structure when it is connected to the clamped object 4, thereby improving the installation accuracy and efficiency.

[0052] In order to achieve a sliding connection between the first clamping layer 31 and the second clamping layer 32 , in the present application, the first clamping layer 31 and the second clamping layer 32 are loosely matched by rivets 35 .

[0053] The loose fit in the present application specifically means that the first clamping layer 31 and the second clamping layer 32 are connected by the rivet 35, and relative sliding can occur between the first clamping layer 31 and the second clamping layer 32.

[0054] Specifically, a second through hole 323 is provided on the second clamping layer 32, and the rivet 35 passes through the second through hole 323 to be connected to the first clamping layer 31; to achieve a loose fit, the inner diameter of the second through hole 323 is larger than the outer diameter of the connecting column on the rivet 35, so that the first clamping layer 31 and the second clamping layer 32 can only slide relative to each other in the vertical plane, and cannot be separated in other directions, such as the horizontal direction.

[0055] The number of rivets 35 is determined according to the size of the first clamping layer 31 and the second clamping layer 32 . In the present application, the number of rivets 35 is preferably two.

[0056] The connecting member 1 is used to connect the first clamping head 2 and the second clamping head 3 which are arranged opposite to each other. Figure 4 As shown, the preferred connecting member 1 of the present application includes two first connecting rods 11 arranged in parallel, and a second connecting rod 12 arranged between the two first connecting rods 11, the second connecting rod 12 is perpendicular to the first connecting rod 11, the two ends of the second connecting rod 12 are respectively connected to the two first connecting rods 11, and the second connecting rod 12 is located at one end close to the second clamping head 3.

[0057] The second clamping head 3 and the connecting member 1 may be connected by welding, fastener connection, etc. In the present application, the second connecting rod 12 is preferably connected to the second clamping head 3 by bolts 5 .

[0058] Specifically, in the present application, a screw hole 121 is provided in the second connecting rod 12, and a first through hole 322 is provided on the second clamping layer 32. The inner diameter of the first through hole 322 is larger than the outer diameter of the bolt 5, so that the second clamping layer 32 can slide along the vertical plane within a certain range; the bolt 5 passes through the screw hole 121 and the first through hole 322 in sequence and is connected to the first clamping layer 31.

[0059] The present application preferably fixes the bolt 5 with the first clamping layer 31, so that when the clamping structure is used, the second clamping head 3 can be driven to move away from or towards the clamped object 4 by rotating the bolt 5, thereby fine-tuning the distance between the first clamping head 2 and the second clamping head 3 and improving the connection strength between the clamping structure and the clamped object 4.

[0060] In order to improve the connection stability between the connecting member 1 and the second clamping head 3, the first connecting rod 11 in the present application has a hollow structure; both ends of the first clamping layer 31 are provided with fourth connecting rods 311 adapted to the first connecting rod 11, and the fourth connecting rod 311 is suitable for being inserted into the first connecting rod 11 so that the fourth connecting rod 311 is slidably connected to the first connecting rod 11.

[0061] By inserting the fourth connecting rod 311 into the first connecting rod 11, the stability of the second clamping head 3 is improved. At the same time, the fourth connecting rod 311 is slidably connected to the first connecting rod 11, so that when the bolt 5 is rotated, the fourth connecting rod 311 slides in the first connecting rod 11 to achieve fine adjustment of the position of the second clamping head 3.

[0062] The fourth connecting rod 311 can be a hollow structure or a solid structure. In order to reduce the weight of the clamping structure, the present application preferably prefers that the fourth connecting rod 311 is a hollow structure, and further prefers that the cross-section of the fourth connecting rod 311 is a groove type.

[0063] Another object of the present invention is to provide a movable learning table, which includes the clamping structure as described above and a movable tabletop connected to the clamping structure.

[0064] Specifically, the movable desktop is connected to the top of the clamping structure, and the clamping structure is clamped on the desktop of an ordinary desk, that is, the desktop of the ordinary desk is equivalent to the clamped object 4 mentioned above.

[0065] By clamping the clamping structure on the desktop of an ordinary desk, the movable desktop of the movable study table is located on the ordinary desk. The user can perform operations such as reading and writing on the movable desktop of the movable study table, thereby transforming the ordinary desk into a study table that is more ergonomic and human body mechanical. Without the need to purchase an additional smart study table, the user's comfort is improved and the user is helped to maintain a correct and comfortable reading and writing posture.

[0066] The movable table top connected to the clamping structure in the present application can be any study table top that conforms to the characteristics of ergonomics and human body mechanics in the prior art, such as a study table top with an arm rest, a study table top with a touch sensing device to monitor and adjust the distance between the user's body and the edge of the table, and a study table top that corrects the sitting posture, etc. This article does not limit the specific structure and type of the movable study table.

[0067] The movable study table provided by the present invention connects the movable desktop to an ordinary desk through a clamping structure, and by arranging a first clamping layer 31, a second clamping layer 32 and a third clamping layer 33 in the second clamping head 3 of the clamping structure, when an upward pulling force is applied to the clamping structure within a certain range, the force applied by the second clamping head 3 to the desktop of the ordinary desk is increased, thereby avoiding the clamping structure from being pulled out of the desktop of the ordinary desk, improving the connection strength between the clamping structure and the ordinary desk, and improving the reliability of clamping without causing damage to the desktop of the ordinary desk.

[0068] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A clamping structure, characterized in that: The invention comprises a connecting member (1), and a first clamping head (2) and a second clamping head (3) respectively arranged at two ends of the connecting member (1), wherein the first clamping head (2) and the second clamping head (3) are used to clamp an object (4), wherein: The second clamping head (3) comprises a first clamping layer (31), a second clamping layer (32), and a third clamping layer (33) which are arranged in sequence from the outside to the inside; The third clamping layer (33) is embedded in the second clamping layer (32), and the third clamping layer (33) is in contact with the clamped object (4); The first clamping layer (31) is slidably connected to the second clamping layer (32); The friction force between the first clamping layer (31) and the second clamping layer (32) is smaller than the friction force between the third clamping layer (33) and the clamped object (4); The lower end of the first clamping layer (31) and the lower end of the second clamping layer (32) are in contact with each other via an inclined surface (34); The inclined surface (34) gradually approaches the clamped object (4) from top to bottom; The connecting member (1) comprises two first connecting rods (11) arranged in parallel, and a second connecting rod (12) arranged between the two first connecting rods (11), the second connecting rod (12) being perpendicular to the first connecting rod (11), the two ends of the second connecting rod (12) being respectively connected to the two first connecting rods (11), and the second connecting rod (12) being located at one end close to the second clamping head (3); The second connecting rod (12) is connected to the second clamping head (3) via a bolt (5); A screw hole (121) is provided in the second connecting rod (12), and a first through hole (322) is provided on the second clamping layer (32), the inner diameter of the first through hole (322) is greater than the outer diameter of the bolt (5), and the bolt (5) passes through the screw hole (121) and the first through hole (322) in sequence to be connected to the first clamping layer (31); The first connecting rod (11) has a hollow structure; both ends of the first clamping layer (31) are provided with fourth connecting rods (311) adapted to the first connecting rod (11), and the fourth connecting rod (311) is suitable for being inserted into the first connecting rod (11) so that the fourth connecting rod (311) is slidably connected to the first connecting rod (11).

2. The clamping structure according to claim 1, characterized in that: The angle between the inclined surface (34) and the vertical surface is 10° to 20°.

3. The clamping structure according to claim 1, characterized in that: The material of the first clamping layer (31) is metal, the material of the second clamping layer (32) is engineering plastic; and the material of the third clamping layer (33) is rubber.

4. The clamping structure according to claim 1, characterized in that: The second clamping layer (32) is provided with an abutment plate (321) arranged parallel to the upper surface of the clamped object (4), and the abutment plate (321) abuts against the upper surface of the clamped object (4).

5. The clamping structure according to any one of claims 1 to 4, characterized in that: The first clamping layer (31) and the second clamping layer (32) are loosely matched via rivets (35).

6. A movable study table, characterized in that: It comprises the clamping structure according to any one of claims 1 to 5, and a movable desktop connected to the clamping structure.

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