Extensible dining table

Abstract

The application relates to the technical field of furniture, and provides an extensible dining table, which comprises a table body, a folding table plate and a folding assembly, the table body is provided with a folding groove, and the folding table plate is movably installed in the folding groove; the folding assembly comprises a sliding rail installed on the bottom wall of the folding groove, a pulling rail installed on the lower surface of the folding table plate and a folding part, the sliding rail and the pulling rail are in sliding cooperation; the folding part comprises elastic pieces and at least two groups of hinged plates, the two ends of the hinged plates are rotationally connected with the folding table plate and the pulling rail respectively; the two ends of the elastic pieces are rotationally connected with the folding table plate and the pulling rail respectively, the elastic pieces always keep a deformed state of a pull rope, and the maximum deformed state of the elastic pieces is located at the middle section of the rotation stroke of the elastic pieces. The extensible dining table ensures that the table plate can keep horizontal during the whole use process and provides stability when the folding table plate is in the unfolded state.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and in particular to an expandable dining table. Background Technology

[0002] With the continuous advancement of urbanization, people's living spaces are becoming increasingly compact, which places higher demands on the functionality and spatial adaptability of furniture. In the furniture market, tables, as commonly used household items, are experiencing increasingly diversified demand. Traditional table designs, to a certain extent, meet people's daily needs, but with changing lifestyles and increased social activities, the need for tables that can adapt to different usage scenarios is becoming increasingly urgent. Tables with expandable functions have become an important research direction, offering a new approach to resolving the contradiction between limited space and diverse usage needs, and thus possessing significant value and meaning in the modern furniture market.

[0003] Currently, existing expandable dining tables typically consist of a table body and a folding tabletop located at the edge of the table body. The lower edge of the folding tabletop is connected to the lower edge of the table body via hinges, and a torsion spring mechanism is installed at the hinges to assist in the unfolding and folding of the tabletop.

[0004] However, this traditional hinge method has significant drawbacks: when the folding tabletop is unfolded, because the hinge points are located at the edges of the table body and the folding tabletop, the side of the folding tabletop furthest from the table body is prone to tilting downwards under gravity, making it impossible to maintain a level position. This tilt not only affects the aesthetics and stability of the tabletop but may also cause items to slide or tip over, reducing the user experience. Utility Model Content

[0005] To address the aforementioned technical issues, this application provides an expandable dining table.

[0006] The expandable dining table provided in this application adopts the following technical solution: An expandable dining table includes a table body, a folding tabletop, and a folding assembly. The table body has a folding groove, and the folding tabletop is movably installed in the folding groove. The folding assembly includes a slide rail installed on the bottom wall of the folding groove, a drawer rail installed on the lower surface of the folding tabletop, and a folding component. The slide rail and the drawer rail slide in cooperation. The folding component includes an elastic element and at least two sets of hinge plates. The two ends of the hinge plates are rotatably connected to the folding table and the drawer rail, respectively. The two ends of the elastic element are rotatably connected to the folding table and the drawer rail, respectively. The elastic element always maintains the state of rope deformation. The maximum deformation state of the elastic element is located in the middle of the rotation stroke of the elastic element.

[0007] By adopting the above technical solution, when the user pulls out the folding tabletop, the slide rail and the draw rail slide relative to each other, allowing the folding tabletop to be completely pulled out of the folding slot. Then, pulling the folding tabletop upwards puts it in the unfolded state, during which the hinge plate unfolds to form a stable support structure. The elastic element is in a continuously stretched state, enabling the folding panel to be pulled out. The rebound force of the elastic element assists in effortless unfolding, and after full unfolding, its tension is converted into the preload of the hinge plate, enhancing the stability of the folding tabletop in the unfolded state.

[0008] When retracting the tabletop, the user only needs to apply an initial force to make it pass through the weight, and the elastic element will automatically help the tabletop to be smoothly retracted into the folding slot. By pulling out and folding the tabletop, the table area can be changed according to actual needs, so as to improve the practicality of the table.

[0009] When the table of this application is in the unfolded state, multiple hinge plates form multiple approximately triangular stable structures. This structure can provide effective support for the folding tabletop below, thereby ensuring that the tabletop remains level throughout the entire use process.

[0010] Optionally, a pin is provided on one side of the folding table, and a slot for inserting the pin is provided on the side wall of the table body.

[0011] By adopting the above technical solution, the insertion and engagement of the pin and the slot can improve the stability of the folding table when it is unfolded, and prevent the folding table from becoming free when pressed down in the unfolded state.

[0012] Optionally, a spring is provided between the drawer and the slide rail, and the spring force is used to drive the slide rail to move toward one side of the table body.

[0013] By adopting the above technical solution and setting a spring, the stability of the pin being inserted into the slot can be increased; and when the folding table is in the folding slot, the spring force will drive the folding table to remain in the folding slot under normal conditions, reducing the possibility of the folding table accidentally coming out of the folding slot.

[0014] Optionally, the elastic element is configured as a tension spring.

[0015] By adopting the above technical solutions, the tension spring is a standardized, mass-produced general-purpose component, which helps to reduce product manufacturing costs; and it is convenient to maintain and replace the tension spring when it is damaged.

[0016] Optionally, a gas spring is provided between the folding table and the drawer rail, with both ends of the gas spring being rotatably connected to the folding table and the drawer rail respectively, and the elastic force of the gas spring forcing the folding table and the drawer rail to move away from each other.

[0017] By adopting the above technical solution, the damping characteristics built into the gas spring ensure that the tabletop moves slowly and smoothly during both unfolding and retraction, reducing the risk of the tabletop bouncing up or falling quickly and improving safety performance.

[0018] Optionally, when the folding table is located in the folding groove, there is a gap between the upper surface of the folding table and the top wall of the folding groove.

[0019] By adopting the above technical solution, friction between the upper surface of the folding table and the inner wall of the folding groove is avoided, thereby reducing the possibility of wear and tear on the folding table.

[0020] Optionally, a rubber strip is provided on the top wall of the folding groove, and when the folding table is located in the folding groove, the upper surface of the folding table abuts against the rubber strip.

[0021] By adopting the above technical solution and setting rubber strips, it is possible to avoid the folding tabletop from contacting the inner wall of the folding groove and causing wear; on the other hand, the static friction provided by the rubber strips can prevent the tabletop from sliding out of the folding groove when not in use.

[0022] Optionally, the lower surface of the folding tabletop is provided with a groove.

[0023] By adopting the above technical solution and setting a groove, it is possible to facilitate the position of the folding tabletop.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. When the folding table is in the unfolded state, multiple hinge plates form multiple approximately triangular stable structures. This structure can provide effective support for the folding table below, thereby ensuring that the table remains level throughout the entire use process. 2. The built-in damping characteristics of the gas spring ensure that the tabletop moves slowly and smoothly during both unfolding and retraction, reducing the risk of the tabletop bouncing up or falling quickly and improving safety performance. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is a partial cross-sectional view of Embodiment 1; Figure 3 This is a schematic diagram of the groove structure in Example 1; Figure 4 This is a schematic diagram of the gas spring in Example 2; Figure 5 This is a schematic diagram of the structure of the rubber strip in Example 3.

[0026] Explanation of reference numerals in the attached drawings: 1. Table body; 11. Tabletop; 12. Support frame; 13. Support column; 14. Folding groove; 15. Insertion groove; 2. Folding tabletop; 21. Mounting plate; 22. Pin; 23. Pull groove; 3. Folding assembly; 31. Spring; 32. Gas spring; 33. Rubber strip; 4. Slide rail; 5. Drawer rail; 6. Folding component; 61. Hinge plate; 62. Elastic element. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] Example 1: This application discloses an expandable dining table.

[0029] Reference Figure 1 An expandable dining table includes a table body 1, a folding tabletop 2, and a folding assembly 3. The table body 1 includes a tabletop 11 and a support frame 12. The tabletop 11 is mounted on the support frame 12. A support column 13 is provided on the upper surface of the support frame 12 and is used to connect with the lower surface of the tabletop 11. A folding groove 14 is formed between the support frame 12 and the tabletop 11. The folding assembly 3 is used to connect the folding tabletop 2 to the inner wall of the folding groove 14.

[0030] Reference Figure 2 The folding assembly 3 includes a slide rail 4, a drawer rail 5, and a folding component 6. The slide rail 4 is installed at the bottom of the folding groove 14. The slide rail 4 is usually a long strip structure, and its material can be metal, such as stainless steel, which has good wear resistance and strength, or high-strength plastic, which is lighter and less expensive. The slide rail 4 is fixed to the bottom wall of the folding groove 14 by bolts or welding to ensure a firm installation.

[0031] A mounting plate 21 is installed at the bottom of the folding tabletop 2, and the mounting plate 21 is connected to the folding tabletop 2 by bolts. The folding component 6 is used to connect the mounting plate 21 to the drawer slide 5, and is also made of metal or plastic, so that it can slide smoothly on the drawer slide 4. The drawer slide 5 and the drawer slide 4 are in a sliding fit, which allows the folding tabletop 2 to move smoothly during expansion and contraction.

[0032] Reference Figure 3 A spring 31 is provided between the drawer rail 5 and the slide rail 4. The elastic force of the spring 31 is used to drive the slide rail 4 to move towards one side of the table body 1. When the folding tabletop 2 is retracted, the elastic force of the spring 31 can help the drawer rail 5 and the folding tabletop 2 return to their initial positions more quickly and reduce the free sliding of the folding tabletop 2 within the folding groove 14.

[0033] The folding component 6 includes an elastic element 62 and at least two sets of hinge plates 61. The hinge plates 61 are generally thin plate structures, and the material can be metal or hard plastic. The two ends of the hinge plates 61 are rotatably connected to the mounting plate 21 and the drawer rail 5 through pins. In this way, the hinge plates 61 can rotate as the folding table 2 moves, playing a supporting and assisted folding role.

[0034] Both ends of the elastic element 62 are rotatably connected to the mounting plate 21 and the draw rail 5, respectively, and the elastic element 62 always maintains a rope-deformed state, with its maximum deformation state located in the middle of the rotation stroke of the elastic element 62. In this embodiment, the elastic element 62 can be set as a tension spring. A tension spring is a common elastic element with good elasticity and rope-pulling performance; tension springs are standardized, mass-produced general-purpose parts, which helps to reduce product manufacturing costs; and they are easy to maintain and replace if the tension spring is damaged.

[0035] When the desktop needs to be expanded, pull the folding tabletop 2, and the drawer 5 slides on the slide rail 4. When the folding tabletop 2 is fully exposed in the folding groove 14, the hinge plate 61 rotates as the folding tabletop 2 moves, and the tension spring is stretched accordingly, providing tension and support for the unfolding of the folding tabletop 2. When the desktop needs to be retracted, push the folding tabletop 2, the drawer 5 slides in the opposite direction, the hinge plate 61 folds, the tension spring recovers some of its deformation, and assists the folding tabletop 2 to retract smoothly into the folding groove 14.

[0036] When the folding tabletop 2 is located within the folding groove 14, there is a gap between the upper surface of the folding tabletop 2 and the inner top wall of the folding groove 14. This gap can prevent the folding tabletop 2 from rubbing against the inner top wall of the folding groove 14 during the shrinking process, protecting the surfaces of the folding tabletop 2 and the folding groove 14, and also providing some space for the installation and disassembly of the folding tabletop 2.

[0037] Reference Figure 2 A pin 22 is provided on one side of the folding tabletop 2, and a slot 15 is provided on the side wall of the table body 1 for the pin 22 to be inserted. The pin 22 is usually a columnar structure, made of metal, and is installed on the folding tabletop 2 by welding or threaded connection. When the folding tabletop 2 is unfolded to the appropriate position, the pin 22 is inserted into the slot 15 to fix the position of the folding tabletop 2, prevent it from shaking, and improve the stability of the dining table during use; and the elasticity of the spring 31 can increase the stability of the engagement between the pin 22 and the slot 15.

[0038] Reference Figure 3 The folding tabletop 2 has a groove 23 on its lower surface. The groove 23 can be a rectangular or circular groove, which makes it convenient for the user to pull the folding tabletop 2 by hand, improving the ease of operation.

[0039] The implementation principle of Embodiment 1 of this application is as follows: When the user pulls out the folding tabletop 2, the slide rail 4 and the drawer rail 5 slide relative to each other, allowing the folding tabletop 2 to be fully pulled out from the folding slot 14. Then, the folding tabletop 2 is pulled upwards, causing the tabletop 11 to be in the unfolded state. During this process, the hinge plate 61 unfolds to form a stable support structure. The elastic element 62 is in a continuously stretched state, enabling the folding plate to be in the pull-out state. The rebound force of the elastic element 62 assists in effortless unfolding. After full unfolding, its tension is converted into the preload of the hinge plate 61, enhancing the stability of the folding tabletop 2 in the unfolded state. Furthermore, multiple hinge plates form multiple approximately triangular stable structures, which provide effective support for the folding tabletop 2 below, thus ensuring that the tabletop 11 remains level throughout use.

[0040] When retracting the tabletop 11, the user only needs to apply an initial force to make it pass through the center point, and the elastic element 62 can automatically assist the tabletop 11 to be smoothly retracted into the folding slot 14; by pulling out and folding the tabletop 2, the table area can be changed according to actual needs for people to use, thereby improving the practicality of the table.

[0041] Example 2: This application discloses an expandable dining table.

[0042] Reference Figure 4 The difference between Embodiment 2 and Embodiment 1 is that a gas spring 32 is provided between the folding tabletop 2 and the drawer rail 5. The two ends of the gas spring 32 are rotatably connected to the folding tabletop 2 and the drawer rail 5, respectively. The elastic force of the gas spring 32 forces the folding tabletop 2 and the drawer rail 5 away from each other. The gas spring 32 is a device that uses gas pressure to generate elastic force, and it features sensitive response and stable support. During the unfolding process of the folding tabletop 2, the elastic force of the gas spring 32 can assist in unfolding the folding tabletop 2, reducing the user's operating effort; during the retraction process, the gas spring 32 can also play a certain buffering role, making the retraction process smoother.

[0043] Example 3: This application discloses an expandable dining table.

[0044] Reference Figure 5 The difference between Embodiment 3 and Embodiment 1 is that a rubber strip 33 is provided on the inner top wall of the folding groove 14. When the folding table 2 is located in the folding groove 14, the upper surface of the folding table 2 abuts against the rubber strip 33. The rubber strip 33 has elasticity and cushioning properties, which can reduce the collision and noise between the folding table 2 and the inner top wall of the folding groove 14, and at the same time further protect the surface of the folding table 2.

[0045] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An expandable dining table, characterized in that: The table includes a table body (1), a folding tabletop (2), and a folding assembly (3). The table body (1) is provided with a folding groove (14), and the folding tabletop (2) is movably installed in the folding groove (14). The folding assembly (3) includes a slide rail (4) installed on the bottom wall of the folding groove (14), a drawer rail (5) installed on the lower surface of the folding tabletop (2), and a folding component (6). The slide rail (4) and the drawer rail (5) slide in cooperation. The folding component (6) includes an elastic element (62) and at least two sets of hinge plates (61). The two ends of the hinge plates (61) are rotatably connected to the folding table (2) and the drawer (5) respectively. The two ends of the elastic element (62) are rotatably connected to the folding table (2) and the drawer (5) respectively. The elastic element (62) always maintains the state of rope deformation. The maximum deformation state of the elastic element (62) is in the middle of the rotation stroke of the elastic element (62).

2. An expandable dining table according to claim 1, characterized in that: The folding tabletop (2) has a pin (22) on one side, and the table body (1) has a plug groove (15) on the side wall for plugging.

3. An expandable dining table according to claim 2, characterized in that: A spring (31) is provided between the draw rail (5) and the slide rail (4), and the elastic force of the spring (31) is used to drive the slide rail (4) to move toward one side of the table body (1).

4. An expandable dining table according to claim 1, characterized in that: The elastic element (62) is configured as a tension spring.

5. An expandable dining table according to claim 1, characterized in that: A gas spring (32) is provided between the folding table (2) and the drawer (5). The two ends of the gas spring (32) are rotatably connected to the folding table (2) and the drawer (5) respectively. The elastic force of the gas spring (32) forces the folding table (2) and the drawer (5) to move away from each other.

6. An expandable dining table according to claim 1, characterized in that: When the folding table (2) is located in the folding groove (14), there is a gap between the upper surface of the folding table (2) and the top wall of the folding groove (14).

7. An expandable dining table according to claim 1, characterized in that: A rubber strip (33) is provided on the top wall of the folding groove (14). When the folding table (2) is located in the folding groove (14), the upper surface of the folding table (2) abuts against the rubber strip (33).

8. An expandable dining table according to claim 1, characterized in that: The folding table (2) has a groove (23) on its lower surface.

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