Extensible wooden dining table
By using hinges, magnets, and tenons to connect the extension plate to the tabletop, combined with an electric push rod to control the lifting column, the problem of existing wooden dining tables being unable to adjust the tabletop size according to the number of diners has been solved. This allows for flexible adjustment of the tabletop size and efficient use of space, while also improving stability and ease of cleaning.
Patent Information
- Application Number
- CN202520851408.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Existing height-adjustable wooden dining tables cannot flexibly adjust the table size according to changes in the number of diners, resulting in cramped conditions when there are many people or low space utilization when there are few people.
The extension board is connected to the tabletop via hinges, magnetic connections, and mortise and tenon joints. Combined with an electric push rod to control the lifting column, the tabletop can be extended and stored. Fixing components ensure that the extension board is securely locked after being stored, and the tabletop can be removed to save space.
It allows for flexible adjustment of desktop size, improving space utilization and ease of use, ensuring the stability and reliability of the expansion board after storage, while also being easy to clean and enhancing user comfort.
Smart Images

Figure CN223830576U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wooden furniture technology, and specifically relates to an expandable wooden dining table. Background Technology
[0002] Dining tables are essential furniture in family and social life, made from a variety of materials. Solid wood dining tables are natural, rustic, sturdy, and durable; marble dining tables have unique textures and exude elegance; glass dining tables are transparent, stylish, and easy to clean. Shapes include round, square, and oval, catering to different dining scenarios and space requirements. Expandable wooden dining tables are a practical and aesthetically pleasing option. They are typically made from high-quality solid wood, such as birch, rubberwood, and oak, which are sturdy, have beautiful grains, and are resistant to decay and water. Their ingenious design allows for expansion and contraction via tracks, folding mechanisms, or insertable extension panels, flexibly adjusting the tabletop size to suit different needs, from everyday meals to gatherings with family and friends.
[0003] Publication No. "CN219537769U" discloses a wooden dining table, including a base cabinet and a tabletop above the base cabinet. The base cabinet also includes a lifting assembly fixedly connected to the tabletop. The lifting assembly includes a support column, gear blocks, and gears. An installation cavity is provided within the base cabinet. A support column, fixedly connected to the bottom of the tabletop, is slidably mounted within the installation cavity. Gear blocks are equidistantly arranged on both sides of the support column from top to bottom. Mounting frames are fixedly mounted above both sides of the installation cavity. Gears that mesh with the gear blocks are rotatably mounted at the ends of the mounting frames. This invention, by incorporating a lifting assembly fixedly connected to the tabletop within the base cabinet, allows users to adjust the tabletop height according to different usage scenarios through the engagement of two servo motors with the gear blocks on the sides of the support column. This is simple and practical.
[0004] While the aforementioned utility model allows users to adjust the table height according to different usage scenarios, making it simple and practical, it cannot flexibly adjust the table size according to changes in the number of diners. When there are many diners, it may feel crowded and unable to provide enough dining space, while when there are few diners, it will occupy too much space, resulting in low space utilization. Utility Model Content
[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an expandable wooden dining table to solve the problem of not being able to flexibly adjust the tabletop size according to changes in the number of diners. When there are many diners, it may feel crowded and unable to provide enough dining space, while when there are few diners, it will occupy too much space, resulting in low space utilization.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] An expandable wooden dining table includes a base, a support column fixedly connected to the top of the base, a lifting column slidably connected to the top of the support column, a tabletop movably connected to the top of the lifting column, an extension plate symmetrically hinged to the outer side of the tabletop, an assembly block fixedly connected to the bottom of the extension plate, and a fixing component symmetrically installed inside the assembly block.
[0008] The fixing assembly includes a cavity, a return spring, a movable plate, and a locking block. The assembly block has symmetrically shaped cavities inside. A return spring is fixedly connected to one side of each cavity, and a movable plate is fixedly connected to the other end of the return spring. The movable plate is slidably connected to the cavity. A locking block is fixedly connected to the other side of the movable plate, with its other end extending out of the side of the assembly block. The bottom of the locking block has a bevel. The bottom of the tabletop has symmetrically shaped assembly grooves. These grooves are inserted into the assembly block. Locking grooves are formed on both sides of each assembly groove, and the locking block engages with the locking groove. The expansion board is symmetrically provided with push grooves, which are connected to the locking groove. The locking groove has an unlocking block that is slidably connected inside. Each unlocking block has a sliding block fixedly connected to both sides. The locking groove has symmetrical sliding grooves on both sides. The sliding blocks and sliding grooves are slidably connected, which allows the expansion board to form a whole with the tabletop after storage. This reduces the possibility of the expansion board shifting due to shaking or collision. It also ensures that the expansion board is firmly locked to the bottom of the tabletop after storage and will not be easily opened due to accidental external force, increasing the stability and reliability of storage.
[0009] As a preferred technical solution, the expansion board is symmetrically fixed with tenons on the side near the tabletop, and mortises are opened on the outer side wall of the tabletop. The tenons and mortises are interlocked, and the tight fit between the tenons and mortises can provide strong connection force, making the connection between the expansion board and the tabletop more stable and less prone to relative movement or shaking. This ensures that the expansion board can withstand a certain weight and external force during use and is not easy to fall off.
[0010] As a preferred technical solution, the expansion board is symmetrically and fixedly connected to magnetic blocks on the side near the tabletop. Magnetic grooves are provided on the outer side wall of the tabletop. The magnetic blocks and magnetic grooves are magnetically connected. The magnetic force between the magnetic blocks and magnetic grooves can provide sufficient adsorption force, so that the expansion board is firmly connected to the tabletop and is not easy to fall off due to daily touch, vibration or slight external force, thus ensuring the stability of the dining table during use.
[0011] As a preferred technical solution, a receiving groove is provided at the top of the support column, and an electric push rod is installed at the bottom of the receiving groove. The telescopic end of the electric push rod is fixedly connected to the bottom of the lifting column, while the lifting column and the receiving groove are slidably connected. The application of the electric push rod realizes the automated control of the table height, which is more labor-saving and efficient than manual lifting. Users can adjust the table height at any time according to their needs by controlling the electric push rod, without having to manually lift or lower the table, thus improving the convenience and comfort of use.
[0012] As a preferred technical solution, guide blocks are symmetrically fixedly connected to both sides of the receiving slot, and guide grooves are symmetrically opened on both sides of the lifting column. The guide blocks and guide grooves are slidably connected. The cooperation between the guide blocks and guide grooves restricts the lifting column to move only in the vertical direction, effectively preventing the lifting column from shaking, deviating or rotating during the lifting process, thereby ensuring the stability of the table lifting. Items placed on the table when dining or working will not tip over due to shaking.
[0013] As a preferred technical solution, the bottom of the tabletop is fixedly connected with a threaded column, and the top of the lifting column is provided with a threaded hole. The threaded column and the threaded hole are connected by a thread. When not in use, the tabletop can be disassembled and stored separately, saving space. The storage space can be flexibly arranged according to actual needs, improving space utilization. It is also convenient to thoroughly clean the connecting parts such as the bottom of the tabletop and the top of the lifting column, effectively removing dust, debris, etc., and keeping the furniture clean and hygienic.
[0014] In summary, the present invention has the following main advantages:
[0015] First, in this utility model, the extension plate is flipped over by a hinge, and the extension plate fits against the bottom of the table. At the same time, the assembly block is inserted into the assembly groove. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block. The locking block drives the moving plate to press against the return spring. The locking block retracts into the cavity. When the locking block moves to the locking groove, the locking block pops out and engages with the locking groove to fix it. This allows the extension plate to form a whole with the table after it is stored, reducing the possibility of the extension plate shifting due to shaking or collision. It also ensures that the extension plate is firmly locked to the bottom of the table after it is stored and will not be easily opened due to accidental external force, increasing the stability and reliability of storage.
[0016] Secondly, in this utility model, the tabletop is placed on top of the lifting column, so that the threaded column and the threaded hole are fitted together. The tabletop is rotated, and the tabletop drives the threaded column to rotate. The threaded column and the threaded hole are threadedly connected. Then, the electric push rod is activated to control the lifting column to slide inside the receiving groove of the support column. The lifting column drives the tabletop to rise and fall. At the same time, the guide groove on the outside of the lifting column slides on the outside of the guide block. When not in use, the tabletop can be disassembled and stored separately, saving space. The storage space can be flexibly arranged according to actual needs, improving space utilization. It is also convenient to thoroughly clean the bottom of the tabletop and the top of the lifting column and other connecting parts, effectively removing dust, debris, etc., and keeping the furniture clean and hygienic. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2This is a bottom-view three-dimensional structural diagram of the present invention;
[0019] Figure 3 This is a cross-sectional three-dimensional structural schematic diagram of the present invention;
[0020] Figure 4 This is a cross-sectional three-dimensional structural diagram of the assembly block of this utility model;
[0021] Figure 5 This is a three-dimensional structural schematic diagram of the present invention;
[0022] Figure 6 This is the utility model Figure 5 Enlarged view of part A.
[0023] Reference numerals: 1. Base; 2. Support column; 3. Receiving groove; 4. Lifting column; 5. Electric push rod; 6. Guide groove; 7. Guide block; 8. Tabletop; 9. Extension plate; 10. Hinge; 11. Magnetic block; 12. Magnetic groove; 13. Tenon; 14. Mortise; 15. Assembly block; 16. Assembly groove; 17. Fixing component; 171. Cavity; 172. Return spring; 173. Moving plate; 174. Locking block; 18. Locking groove; 19. Push groove; 20. Unlocking block; 21. Sliding block; 22. Sliding groove; 23. Threaded column; 24. Threaded hole. Detailed Implementation
[0024] Example
[0025] refer to Figures 1 to 6 The expandable wooden dining table described in this embodiment includes a base 1, a support column 2 fixedly connected to the top of the base 1, a lifting column 4 slidably connected to the top of the support column 2, a tabletop 8 movably connected to the top of the lifting column 4, and an extension plate 9 symmetrically hinged to the outer side of the tabletop 8 via hinges 10. An assembly block 15 is fixedly connected to the bottom of the extension plate 9, and a fixing component 17 is symmetrically installed inside the assembly block 15.
[0026] The fixing assembly 17 includes a cavity 171, a return spring 172, a movable plate 173, and a locking block 174. The assembly block 15 has symmetrically arranged cavities 171 inside. A return spring 172 is fixedly connected to one side of the cavity 171, and a movable plate 173 is fixedly connected to the other end of the return spring 172. The movable plate 173 is slidably connected to the cavity 171. A locking block 174 is fixedly connected to the other side of the movable plate 173, and the other end of the locking block 174 extends out of the side of the assembly block 15. The bottom of the locking block 174 has a slope. The bottom of the tabletop 8 has symmetrically arranged assembly grooves 16. The assembly grooves 16 and... The assembly block 15 is plug-in, and locking grooves 18 are provided on both sides inside the assembly slot 16. The locking block 174 is snapped into the locking groove 18. The extension plate 9 is flipped over by the hinge 10, and the extension plate 9 is attached to the bottom of the table board 8. At the same time, the assembly block 15 is inserted into the assembly slot 16. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block 174. The locking block 174 drives the moving plate 173 to press against the return spring 172. The locking block 174 retracts into the cavity 171. When the locking block 174 moves to the locking groove 18, the locking block 174 pops out and snaps into the locking groove 18 for fixation.
[0027] refer to Figure 6 The bottom of the tabletop 8 is symmetrically provided with push grooves 19, which are internally connected to the locking groove 18. The locking groove 18 is slidably connected with an unlocking block 20. Sliding blocks 21 are fixedly connected to both sides of the unlocking block 20. Sliding grooves 22 are symmetrically provided on both sides of the locking groove 18. The sliding blocks 21 and the sliding grooves 22 are slidably connected. Pushing the unlocking block 20 causes it to slide inside the locking groove 18. The unlocking block 20 drives the sliding blocks 21 to slide inside the sliding grooves 22. The unlocking block 20 pushes the locking block 174, causing the locking block 174 to drive the moving plate 173 to press against the return spring 172. The return spring 172 is compressed, and the locking block 174 retracts into the cavity 171. The locking block 174 and the locking groove 18 are no longer engaged.
[0028] refer to Figure 3 The expansion board 9 is symmetrically fixed with tenons 13 on the side near the tabletop 8. The outer side wall of the tabletop 8 is provided with mortises 14. The tenons 13 and mortises 14 are interlocked. When the expansion board 9 is flipped by the hinge 10 so that one side of the expansion board 9 is combined with one side of the tabletop 8, the tenons 13 are inserted into the mortises 14.
[0029] refer to Figure 5 The expansion plate 9 is symmetrically and fixedly connected to the magnetic blocks 11 on the side near the tabletop 8. The outer side wall of the tabletop 8 is provided with magnetic grooves 12. The magnetic blocks 11 and the magnetic grooves 12 are magnetically connected. When the expansion plate 9 is flipped by the hinge 10 so that one side of the expansion plate 9 is combined with one side of the tabletop 8, the magnetic blocks 11 and the magnetic grooves 12 are magnetically connected.
[0030] refer to Figure 3The top of the support column 2 is provided with a receiving groove 3, and an electric push rod 5 is installed at the bottom of the receiving groove 3. The telescopic end of the electric push rod 5 is fixedly connected to the bottom of the lifting column 4. The lifting column 4 and the receiving groove 3 are slidably connected. When the electric push rod 5 is activated, the lifting column 4 is controlled to slide inside the receiving groove 3 of the support column 2, and the lifting column 4 drives the table 8 to rise and fall.
[0031] refer to Figure 2 The inside of the receiving groove 3 is symmetrically fixedly connected with guide blocks 7 on both sides. The lifting column 4 is symmetrically provided with guide grooves 6 on both sides. The guide blocks 7 and the guide grooves 6 are slidably connected. When the lifting column 4 is raised or lowered, the guide grooves 6 on the outside of the lifting column 4 slide on the outside of the guide blocks 7.
[0032] refer to Figure 3 The bottom of the tabletop 8 is fixedly connected to a threaded post 23, and the top of the lifting post 4 is provided with a threaded hole 24. The threaded post 23 and the threaded hole 24 are threadedly connected. The tabletop 8 is placed on the top of the lifting post 4 so that the threaded post 23 fits into the threaded hole 24. The tabletop 8 is rotated, and the tabletop 8 drives the threaded post 23 to rotate, and the threaded post 23 and the threaded hole 24 are threadedly connected.
[0033] Operating principle and advantages: First, place the tabletop 8 on top of the lifting column 4, so that the threaded column 23 fits into the threaded hole 24. Rotate the tabletop 8, which drives the threaded column 23 to rotate, and the threaded column 23 connects with the threaded hole 24, completing the assembly of the dining table. Then, flip the extension plate 9 using the hinge 10, so that one side of the extension plate 9 merges with one side of the tabletop 8. At this point, the tenon 13 inserts into the mortise 14, and simultaneously, the magnetic block 11 connects magnetically with the magnetic groove 12. When needed... When the device is to be stored, the extension plate 9 is flipped over by the hinge 10, and the extension plate 9 is attached to the bottom of the tabletop 8. At the same time, the assembly block 15 is inserted into the assembly slot 16. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block 174. The locking block 174 drives the moving plate 173 to press against the return spring 172. The locking block 174 retracts into the cavity 171. When the locking block 174 moves to the locking slot 18, the locking block 174 pops out and engages with the locking slot 18 to fix it in place.
[0034] This invention allows the extension board 9 to form a whole with the tabletop 8 after being stored, reducing the possibility of the extension board 9 shifting due to shaking or collision. It also ensures that the extension board 9 is firmly locked to the bottom of the tabletop 8 after being stored, and will not be easily opened due to accidental external force, thus increasing the stability and reliability of storage.
Claims
1. An expandable wooden dining table, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the support column (2), the support column (2) is slidably connected to the top of the lifting column (4), the lifting column (4) is movably connected to the top of the table (8), the table (8) is symmetrically hinged to the outer side by the hinge (10) with the extension plate (9), the bottom of the extension plate (9) is fixedly connected to the assembly block (15), and the assembly block (15) is symmetrically installed with the fixing component (17) inside the assembly block (15). The fixing component (17) includes a cavity (171), a return spring (172), a moving plate (173), and a locking block (174). The assembly block (15) has symmetrical cavities (171) inside. A return spring (172) is fixedly connected to one side of the cavity (171). A moving plate (173) is fixedly connected to the other end of the return spring (172). The moving plate (173) is slidably connected to the cavity (171). A locking block (174) is fixedly connected to the other side of the moving plate (173). The other end of the locking block (174) extends out of the side end of the assembly block (15). The bottom of the locking block (174) is provided with an inclined surface.
2. An expandable wooden dining table according to claim 1, characterized in that: The bottom of the tabletop (8) is symmetrically provided with assembly slots (16), the assembly slots (16) and the assembly block (15) are inserted into each other, and locking slots (18) are provided on both sides inside the assembly slots (16), and the locking block (174) and the locking slots (18) are snapped together.
3. An expandable wooden dining table according to claim 2, characterized in that: The bottom of the tabletop (8) is symmetrically provided with push grooves (19), which are connected to the locking groove (18). The locking groove (18) is slidably connected with an unlocking block (20). Sliding blocks (21) are fixedly connected to both sides of the unlocking block (20). Sliding grooves (22) are symmetrically provided on both sides of the locking groove (18). The sliding blocks (21) and the sliding grooves (22) are slidably connected.
4. An expandable wooden dining table according to claim 1, characterized in that: The extension plate (9) is symmetrically fixed with tenons (13) on the side near the tabletop (8), and mortises (14) are provided on the outer side wall of the tabletop (8). The tenons (13) and mortises (14) are inserted together.
5. An expandable wooden dining table according to claim 1, characterized in that: The expansion plate (9) is symmetrically fixedly connected to the magnetic blocks (11) on the side near the table (8). The outer side wall of the table (8) is provided with magnetic grooves (12). The magnetic blocks (11) and magnetic grooves (12) are magnetically connected.
6. An expandable wooden dining table according to claim 1, characterized in that: The top of the support column (2) is provided with a receiving groove (3), and an electric push rod (5) is installed at the bottom of the receiving groove (3). The telescopic end of the electric push rod (5) is fixedly connected to the bottom of the lifting column (4), and the lifting column (4) and the receiving groove (3) are slidably connected.
7. An expandable wooden dining table according to claim 6, characterized in that: The receiving groove (3) has guide blocks (7) symmetrically fixedly connected on both sides, and the lifting column (4) has guide grooves (6) symmetrically opened on both sides. The guide blocks (7) and guide grooves (6) are slidably connected.
8. An expandable wooden dining table according to claim 1, characterized in that: The bottom of the tabletop (8) is fixedly connected to a threaded column (23), and the top of the lifting column (4) is provided with a threaded hole (24). The threaded column (23) and the threaded hole (24) are threadedly connected.
Citation Information
Patent Citations
Wooden dining table
CN219537769U
Cited By
High-adaptability bamboo table
CN121714111A