Large-span reading desk

Abstract

The invention discloses a large-span reading table which comprises a table top and table legs, the table top comprises a honeycomb core plate and a panel arranged outside the honeycomb core plate, a table frame is arranged on the table top, balancing weights are arranged on the table legs, and one end of each table leg is detachably arranged on the table frame. The overall structural stability is high, the super-large-span preview support can be achieved without any auxiliary support, the overall attractiveness and installation convenience of the reading table are effectively improved, and disassembly, assembly and transportation are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of tables, in particular to a large-span reading table. Background Art

[0002] There are many reading tables installed in reading rooms, libraries and other places for people to study and read, for readers to sit down and read. They are generally composed of a basic desktop and four table legs, and the overall structure is simple. When the existing reading table is short, it can be stably supported by a simple combination of four table legs and the desktop, and it is ensured that the desktop is not prone to deformation and bending. However, when the span of the desktop wood board exceeds two meters, deformation will occur. The larger the span, the more serious the deformation. Especially when the desktop exceeds 3m, there is no other auxiliary structure for rigid positioning. It will easily cause the desktop to deform and bend for a long time, and the two side panels of the table will be squeezed and twisted. In order to solve the problem of supporting a large-span desktop, large steel plates are often used for welding in the prior art, which will increase the weight of the table, making it inconvenient to move, inconvenient to pack and transport, and not beautiful; while the use of multiple-leg support will result in poor aesthetics. At the same time, when the existing table top and table legs are connected by conventional mortise and tenon joints or screws, due to the problem of gravity points, it is easy to cause shaking during use. It is also relatively troublesome during disassembly and transportation, and it is easy to cause partial breakage of the connection between the table legs or table top due to insufficient rigidity. Summary of the invention

[0003] In order to solve one or some technical problems existing in the prior art, the purpose of the present application is to provide a large-span reading table with high overall structural stability. It does not require any auxiliary support to achieve a long-term use of an ultra-large-span preview table without deformation and stable placement, effectively improving the overall aesthetics and installation convenience of the reading table, and is easy to disassemble and transport.

[0004] In order to solve the above existing technical problems, this application adopts the following technical solutions:

[0005] A large-span reading table comprises a table top and table legs, wherein a nose frame is provided at the corner of the table top, a counterweight is provided on the table legs, and the upper ends of the table legs are detachably mounted on the nose frame, the nose frame is used to improve the anti-deformation force of the corners and sides of the table top, and the counterweight is used to improve the stability of the table legs during the supporting process.

[0006] Preferably, the counterweight block includes a cylindrical counterweight body and a connecting screw arranged on the top of the counterweight body, a storage groove is provided on the top of the table leg, and a connecting screw hole for installing the connecting screw is provided at the bottom of the table top, and the counterweight body is embedded in the storage groove.

[0007] Preferably, the airplane head frame comprises L-shaped embedded blocks respectively extending along the two side surfaces of the desktop, and protrusions arranged on the inner sides of the corners of the L-shaped embedded blocks, and the connecting screw holes are arranged on the protrusions.

[0008] Preferably, it also includes a locking screw, a locking screw hole is provided at the bottom of the counterweight body, a mounting hole is provided at the bottom of the storage slot that passes through the table leg, and one end of the locking screw passes through the mounting hole through the bottom of the table leg and is threadedly connected to the connecting screw hole.

[0009] Preferably, a disassembly hole is provided on one side of the counterweight body.

[0010] Preferably, the disassembly hole passes through the counterweight body or one end is connected to the connecting screw hole.

[0011] Preferably, a steel foot is provided at the bottom of the table leg, and one end of the locking screw is limited by the steel foot.

[0012] Preferably, a limit block protruding upward is provided on the top of the table leg, and a limit slot cooperating with the limit block for locking and limiting is provided on the bottom of the table top.

[0013] Preferably, the tabletop includes a honeycomb core panel and a panel arranged on the outside of the honeycomb core panel, and the aircraft head frame is embedded in the corner of the honeycomb core panel.

[0014] Preferably, the honeycomb core board is a fully drilled honeycomb board structure; the panel adopts a solid wood structure, and the upper end surface of the table top is also provided with a medium-fiber table top.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The airplane head rack can shape the corners of the desktop and a certain length of the side area, thereby improving the anti-twisting effect of the desktop itself, so that the desktop can remain flat for a long time even after the span is increased. At the same time, the airplane head rack is embedded on the desktop, so that the overall appearance of the entire desktop is still a sheet-like plate shape. From the appearance, there will be no local bulges, and the appearance is high. After installation, there will be no problem of increased difficulty in transportation due to excessive weight. The airplane head rack can even protect the corners of the desktop to prevent the corners from being damaged by collisions.

[0017] 2. The counterweight block can ensure that the point of gravity of the reading table is always on the table legs during placement, so that the table legs can naturally form a downward force, thereby making the overall structural stability of the table legs higher during use, and it is less likely to shake during use, effectively improving the overall aesthetics and installation convenience of the reading table.

[0018] 3. Through the combination of the aircraft head frame and the counterweight block, the span of the study table can exceed 3m without the problem of desktop distortion and instability during placement, effectively increasing the desktop length of the large-span reading table. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention, showing a state where one table leg is disassembled;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the aircraft head frame and the counterweight block in the present invention;

[0021] Figure 3 This is a schematic diagram of the structure when the disassembly hole penetrates the counterweight block in the present invention;

[0022] Figure 4 It is a cross-sectional view of the counterweight block and the table leg in the present invention being connected via a locking screw;

[0023] Figure 5 is a schematic diagram of the cross-sectional structure of the desktop in the present invention;

[0024] In the figure: 1. table leg; 2. storage slot; 3. limit card block; 4. counterweight block; 41. counterweight body; 42. disassembly hole; 43. connecting screw; 44. locking screw hole; 5. limit card slot; 6. aircraft head frame; 61. protrusion; 62. L-shaped embedded block; 7. table top; 71. panel; 72. honeycomb core board; 73. medium fiber table board; 8. connecting screw hole; 9. installation hole; 10. locking screw; 11. steel foot. DETAILED DESCRIPTION

[0025] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0027] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] like Figure 1 As shown, a large-span reading table includes a table top 7 and a table leg 1. A nose frame 6 is provided at the corner of the table top 7, and a counterweight 4 is provided on the table leg 1. The upper end of the table leg 1 is detachably mounted on the nose frame 6. The nose frame 6 is used to improve the anti-deformation force of the corners and sides of the table top 7, and the counterweight 4 is used to improve the stability of the table leg 1 during the supporting process.

[0029] As the span of the desktop 7 increases, it is easy for the desktop 7 to be deformed and twisted due to the torsion of the edge of the plate. Although auxiliary supports are added to the bottom or side of the desktop 7 for reinforcement, the overall weight of the desktop 7 will increase significantly, making it more difficult to transport, and the aesthetics will be worse and the cost will be higher. Therefore, in order to solve the problem that the desktop 7 is prone to deformation after the span is increased without auxiliary supports, an airplane head frame 6 is embedded and installed at the corner of the existing desktop 7. The airplane head frame 6 can shape the corner of the desktop 7 and a certain length area on the side, thereby improving the anti-twisting effect of the desktop 7 itself, so that the desktop 7 can remain flat for a long time even after the span is increased. At the same time, the airplane head frame 6 is embedded in the table top 7, so that the overall appearance of the entire table top 7 is still a sheet-like plate shape. From the appearance, there will be no local bulges, and the appearance is high. Moreover, after installation, there will be no problem of increased difficulty in transportation due to excessive weight. The airplane head frame 6 can even protect the corners of the table top 7 to avoid a large amount of damage to the corners due to collision.

[0030] Since the existing reading table top 7 is a flat structure with uniform overall gravity, it is easy to cause instability in placement during use, especially when the table top 7 is relatively thin. Due to the increase in the span of the table top 7, the stability of the installation will be worse than that of a conventional reading table. Therefore, a counterweight 4 is added to the table leg 1 so that the gravity point of the reading table is always on the table leg 1 during placement, which can naturally form a downward force on the table leg 1, thereby making the overall structural stability of the table leg 1 higher during use, and not prone to shaking during use, effectively improving the overall aesthetics and installation convenience of the reading table. Through the combination of the aircraft head frame 6 and the counterweight 4, the table top 7 will not be distorted or unstable during placement even if the span of the study table exceeds 3m, effectively increasing the length of the table top 7 of the large-span reading table.

[0031] Further improvement is as follows: Figure 2 As shown, the counterweight block 4 includes a cylindrical counterweight body 41 and a connecting screw 43 arranged on the top of the counterweight body 41. A storage groove 2 is provided on the top of the table leg 1, and a connecting screw hole 8 for installing the connecting screw 43 is provided on the bottom of the table top 7. The counterweight body 41 is embedded in the storage groove 2.

[0032] The counterweight 4 is composed of a cylindrical counterweight body 41 and a connecting screw 43. The counterweight 4 is generally made of metal material, which can make it have a greater downward pressure on the table leg 1 after assembly and better stability. In addition, the counterweight body 41 is a cylindrical structure. Compared with other structures, it can effectively solve the problem that the table leg 1 cannot be accurately aligned with the storage slot 2 after installation through the connecting screw 43, or the angle deviation of the table leg 1 occurs after the storage slot 2 is inserted. When the table leg 1 can be installed at a non-arbitrary angle, the installation difficulty is seriously increased. The counterweight 4 is a separate component, and the table leg 1 is connected to the desktop 7 through the counterweight 4, which is more convenient when transportation is required, and the packaging and transportation costs are lower. After the counterweight body 41 is installed to the connecting screw hole 8 through the connecting screw 43, when the table leg 1 is installed, it only needs to align the storage slot 2 with the counterweight body 41 and insert it to achieve installation. The installation method is simpler and more convenient. Among them, when no other fixed structure is used, the counterweight body 41 and the storage slot 2 can be connected by excessive or interference fit.

[0033] As a further improvement, the aircraft head frame 6 includes an L-shaped embedded block 62 extending along the two sides of the table top 7, a protrusion 61 arranged on the inner side of the corner of the L-shaped embedded block 62, and the connecting screw hole 8 is arranged on the protrusion 61.

[0034] After the L-shaped embedded block 62 is embedded in the corner of the desktop 7, the edge of the L-shaped embedded block 62 extends along the side of the desktop 7, which can effectively provide rigid support and limit the corner of the desktop 7, avoiding the problem of relative distortion of the two sides of the corner, thereby improving the anti-deformation ability of the entire desktop 7. At the same time, after the simple L-shaped embedded block 62 is embedded and installed, it is easy to be deformed due to the distortion of the desktop 7 even if it is made of metal material because the weight of the entire desktop 7 needs to be reduced; secondly, the connection screw hole 8 is on the desktop 7, and it is easy for the connection screw 43 to collapse due to the action of external force after being installed, thereby causing the connection between the desktop 7 and the table leg 1 to become loose. Therefore, a protrusion 61 is formed on the inner side of the corner of the L-shaped embedded block 62, and the L-shaped embedded block 62 is formed into an airplane head structure through the protrusion 61. The connecting screw hole 8 is located on the protrusion 61, and the airplane head frame 6 is made of metal material. The protrusion 61 can not only support the corner of the sheet-like L-shaped embedded block 62, so that the rigidity between the two side edges of the L-shaped embedded block 62 is better and the deformation resistance is stronger, but also can ensure that after the connecting screw 43 is installed, it will not loosen even if it is subjected to external force, so that the connection between the two is more firmly connected. At the same time, the metal structure of the airplane head frame 6 can further increase the gravity of the table leg 1, so that the entire reading table will not shake when placed anywhere.

[0035] Further improvement is as follows: Figure 4 As shown, it also includes a locking screw 10, a locking screw hole 44 is provided at the bottom of the counterweight body 41, and a mounting hole 9 is provided at the bottom of the storage groove 2 which passes through the table leg 1. One end of the locking screw 10 passes through the mounting hole 9 at the bottom of the table leg 1 and is threadedly connected to the connecting screw hole 8.

[0036] When the counterweight block 4 is used as the connection between the table leg 1 and the table top 7, the size and matching accuracy of the storage slot 2 are required to be high, and the difficulty of disassembly after installation is also high. In addition, when connected through the storage slot 2, the table leg 1 is prone to local stress, which makes the table leg 1 on the side of the storage slot 2 prone to stress damage. Therefore, a locking screw 10 is also installed on each table leg 1. The locking screw 10 passes through the installation hole 9 from the bottom of the table leg 1 and is connected to the locking screw hole 44. Through the combination of the locking screw 10 and the counterweight block 4, the rigidity of the table leg 1 can be strengthened. Through the cooperation of the locking screw 10 and the locking screw hole 44, the table leg 1 can be firmly installed on the counterweight body 41. In addition, the requirements for the matching of the storage slot 2 and the counterweight body 41 are also lower, so that the two can achieve better relative rotation and disassembly, avoiding the situation where it is difficult to disassemble the table leg 1 after installation. At the same time, through the combination of the locking screw 10, the counterweight 4 and the aircraft head frame 6, the fastening structure of the table leg 1 can form a whole that runs through the entire table leg 1, so that the table leg 1 has better firmness and stability after installation, and can prevent the table leg 1 from loosening or even breaking even under the action of shear force. Compared with the existing connection structure, the protective effect of the table leg 1 is improved.

[0037] As a further improvement, a disassembly hole 42 is provided on one side of the counterweight body 41 .

[0038] After the counterweight block 4 is installed, it is difficult to disassemble it with ordinary tools due to its overall cylindrical shape. When it is disassembled by hand-held rotation, it is easy to rust due to long-term installation and become unable to unscrew. Therefore, in order to solve the problem that the counterweight block 4 cannot be disassembled due to the lack of force points in the later stage, a disassembly hole 42 is formed on one side of the counterweight body 41. The disassembly hole 42 can form a radial force point during disassembly and installation, thereby making disassembly and assembly more convenient.

[0039] Further improvement is as follows: Figure 2 and Figure 3 As shown, the disassembly hole 42 passes through the counterweight body 41 or one end thereof is connected to the connecting screw hole 8 .

[0040] Among them, the disassembly hole 42 runs through the counterweight body 41, and the structure is simpler. At the same time, since the overall diameter of the counterweight body 41 is limited, in order to ensure its overall counterweight effect and increase the force-bearing length of the disassembly hole 42, one end of the disassembly hole 42 is connected with the connecting screw hole 8, so that the two form a T-shaped structure, which will not affect the function of the two holes themselves, and can maximize the weight of the counterweight block 4, and at the same time, the length of the disassembly hole 42 can be increased in disguise through the connecting screw hole 8.

[0041] As a further improvement, a steel foot 11 is provided at the bottom of the table leg 1 , and one end of the locking screw 10 is limited by the steel foot 11 .

[0042] Since the table leg 1 is generally made of wood, the locking screw 10 can easily cause a clamping force during the tightening process and damage the bottom of the table leg 1, and the left and right positions of the locking screw 10 cannot be limited. In order to ensure the installation stability of the locking screw 10, a steel foot 11 is installed at the bottom of the table leg 1. The locking screw 10 passes through the steel foot 11 and is then locked. The bottom of the locking screw 10 can be limited axially and radially by the steel foot 11, thereby avoiding excessive axial rotation of the locking screw 10 during installation and radial displacement after installation.

[0043] As a further improvement, a limit block 3 protruding upward is provided on the top of the table leg 1, and a limit slot 5 cooperating with the limit block 3 for locking and limiting is provided on the bottom of the table top 7.

[0044] When assembling the table leg 1, in order to avoid position deviation of the table leg 1 after assembly and lack of positioning effect after installation, and to facilitate the exposure of the portion with threaded holes on the aircraft head frame 6, an inwardly recessed limit slot 5 is formed at the bottom of the table top 7, so that the portion with holes of the aircraft head frame 6 is arranged in the limit slot 5. At the same time, the limit block 3 on the top of the table leg 1 can also provide a limiting function between the assembled table top 7 and the table leg 1, thereby avoiding the rotation or shaking of the table leg 1 after installation.

[0045] Further improvement is as follows: Figure 5 As shown, the table top 7 includes a honeycomb core panel 72 and a panel 71 arranged on the outside of the honeycomb core panel 72 , and the aircraft head frame 6 is embedded in the corner of the honeycomb core panel 72 .

[0046] In the actual production process, the table top 7 is composed of a composite of a honeycomb core panel 72 and a panel 71, and the aircraft head frame 6 is embedded in the corner of the honeycomb core panel 72, which can make the overall weight of the table top 7 lighter and have better anti-deformation effect. The panel 71 can effectively shield the honeycomb core panel 72 and the aircraft head frame 6, making the table top 7 more beautiful and having better anti-deformation ability. In the absence of other auxiliary structures, stable use of a larger span can be achieved.

[0047] As a further improvement, the honeycomb core board 72 is a fully drilled honeycomb board structure; the panel 71 is made of solid wood structure, the upper end surface of the table top 7 is also provided with a medium-fiber table top 73, and the honeycomb core board 72 is made of aluminum.

[0048] The honeycomb core panel 72 is made of aluminum, which can make it more rigid and resistant to deformation. The span of the desktop 7 can be larger, especially when the honeycomb core panel 72 is a fully drilled aluminum honeycomb panel structure. After being combined with the medium-fiber table panel 73, it can achieve ultra-large span preview support without any auxiliary support. After testing, it was found that even if the span reaches 3.5m, there will be no shaking, bending, deformation and other problems. The large-span reading table can remain stable no matter how it is placed.

[0049] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A large-span reading table, comprising a tabletop (7) and a table leg (1), characterized in that: A nose frame (6) is provided at the corner of the table top (7), a counterweight (4) is provided on the table leg (1), and the upper end of the table leg (1) is detachably mounted on the nose frame (6), so that the anti-deformation force of the corner and side of the table top (7) is improved by the nose frame (6), and the stability of the table leg (1) during the supporting process is improved by the counterweight (4).

2. A large-span reading table according to claim 1, characterized in that: The counterweight block (4) comprises a cylindrical counterweight body (41) and a connecting screw (43) arranged on the top of the counterweight body (41); a storage groove (2) is arranged on the top of the table leg (1); a connecting screw hole (8) for installing the connecting screw (43) is arranged on the bottom of the table top (7); and the counterweight body (41) is embedded in the storage groove (2).

3. A large-span reading table according to claim 2, characterized in that: The aircraft head frame (6) comprises an L-shaped embedded block (62) extending along the two sides of the table top (7), a protrusion (61) arranged on the inner side of the corner of the L-shaped embedded block (62), and the connecting screw hole (8) is arranged on the protrusion (61).

4. A large-span reading table according to claim 2, characterized in that: It also includes a locking screw (10), the bottom of the counterweight body (41) is provided with a locking screw hole (44), the bottom of the storage slot (2) is provided with a mounting hole (9) that passes through the table leg (1), and one end of the locking screw (10) passes through the bottom of the table leg (1) and passes through the mounting hole (9) and is then threadedly connected to the connecting screw hole (8).

5. The large-span reading table according to claim 3, characterized in that: A disassembly hole (42) is provided on one side of the counterweight body (41).

6. The large-span reading table according to claim 4, characterized in that: The disassembly hole (42) passes through the counterweight body (41) or one end of the disassembly hole (42) is connected to the connection screw hole (8).

7. The large-span reading table according to claim 3, characterized in that: A steel foot (11) is provided at the bottom of the table leg (1), and one end of the locking screw (10) is limited by the steel foot (11).

8. The large-span reading table according to claim 1, characterized in that: The top of the table leg (1) is provided with a limit block (3) protruding upward, and the bottom of the table top (7) is provided with a limit slot (5) cooperating with the limit block (3) for locking and limiting.

9. A large-span reading table according to any one of claims 1 to 8, characterized in that: The tabletop (7) comprises a honeycomb core board (72) and a panel (71) arranged on the outside of the honeycomb core board (72), and the aircraft head frame (6) is embedded in the corner of the honeycomb core board (72).

10. The large-span reading table according to claim 9, characterized in that: The honeycomb core board (72) is a fully drilled honeycomb board structure; the panel (71) is a solid wood structure, and the upper end surface of the table top (7) is also provided with a medium fiber table top (73).

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