A co-frame table frame and table

Abstract

The application provides a co-frame table frame and a table, and relates to the technical field of furniture. A co-frame type basic structure composed of an inner ring frame, an outer ring frame and a connecting piece is created, so that a first connecting structure for connecting a rotating table top, a second connecting structure for connecting an outwardly extending table top and a third connecting structure for connecting a table leg are highly integrated and unified in a stable rigid frame. A standardized building block type platform is further provided, and a user can flexibly select to install a rotating table top, an outwardly extending table top or keep the basic form of a fixed table top according to an actual use scene. Each functional module can be stably and reliably connected through a corresponding standard interface, and the unity of rich functionality and compact structure is achieved.

Description

Technical Field

[0001] This invention relates to the field of furniture technology, and more particularly to a modular, shared-frame table frame and table. Background Technology

[0002] Dining tables, conference tables, and other furniture are common items in daily life. To meet diverse usage needs (such as increasing the number of diners or allowing tables to rotate for food retrieval), functional tables have emerged on the market. For example, some tables extend the tabletop by adding movable panels around the perimeter of a fixed table, while others allow partial tabletop rotation by installing a turntable mechanism underneath the table.

[0003] However, these existing solutions have significant limitations. First, functional modules are usually separate or added later, lacking a unified design integration. For example, extended desktops often need to be stored separately, the assembly process is cumbersome, and the strength and stability of the connecting parts are insufficient; rotating mechanisms are often installed as independent modules under the table frame, which often increases the overall thickness of the table (net height from the desktop to the ground), affecting aesthetics and user comfort, while also increasing structural complexity and cost. Second, the supporting structures such as table legs have relatively simple functions, making it difficult to simultaneously meet multiple needs such as flexible height adjustment, quick folding and storage, and stable support.

[0004] Therefore, there is an urgent need in this field for a new type of table frame basic structure that can provide standard, stable and compact connection support for various desktop functions (fixed, extended, rotated) and support functions (fixed, lifting, folding) in a highly integrated and modular manner, just like the base of a "building block". This would overcome the defects of existing technologies such as structural redundancy, functional fragmentation and inconvenience of use. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is: how to provide a highly integrated basic table frame structure, so that the table frame acts as a unified "building block base", providing a stable and compact connection interface for optional rotating desktop, optional extended desktop and table legs, so that users can flexibly configure functional modules according to specific needs.

[0006] On one hand, the present invention provides a shared frame table frame, comprising: an inner ring frame, on which a first connecting structure is provided for connecting a rotating tabletop; an outer ring frame, disposed outside the inner ring frame, on which a second connecting structure is provided for connecting an extended tabletop; a connector for connecting the outer ring frame and the inner ring frame; and a connector for connecting a third connecting structure for connecting table legs.

[0007] Optionally, the outer ring frame is square in shape; the second connecting structure includes an extension kit, a folding hinge, and an extension sleeve; the extended desktop is rotatably mounted on the outside of the outer ring frame via the folding hinge; the extension sleeve is disposed inside the extended desktop, one end of the extension kit is fixedly disposed on the outer ring frame, and when the extended desktop is rotated to be flush with the fixed desktop on the outer ring frame, the other end of the extension kit is snapped into the extension sleeve to fix the extended desktop.

[0008] Optionally, the extension kit includes a circular tube beam and a telescopic pin. The circular tube beam is fixedly mounted on the outer ring frame, and the telescopic pin is movably mounted inside the circular tube beam. A positioning pin is provided on the telescopic pin, and a first locking hole and a second locking hole are provided on the circular tube beam. When the positioning pin is engaged in the first locking hole, the telescopic pin is completely located inside the circular tube beam. When the positioning pin is engaged in the second locking hole, the telescopic pin is partially located inside the extension sleeve.

[0009] Optionally, the first connecting structure is located within the inner ring frame. The first connecting structure includes a rotatably connected outer bearing ring and an inner bearing ring, with the inner bearing ring fixedly mounted on the inner ring frame. The rotating table is mounted on the outer bearing ring, thereby allowing the rotating table to rotate relative to the fixed table.

[0010] Optionally, a central hole movable base plate is installed on the inner ring frame, the inner ring of the bearing is fixedly installed on the central hole movable base plate of the inner ring frame, and a drive element is installed on the central hole movable base plate; an external gear ring is installed on the side of the outer ring of the bearing away from the central hole movable base plate, and the rotating table is installed on the side of the external gear ring away from the outer ring of the bearing; the external gear ring is connected to the drive element so that the drive element can drive the rotating table to rotate.

[0011] Optionally, the driving element is a drive motor, and a transmission gear is provided on the power output shaft of the drive motor. The transmission gear meshes with the external gear ring. The drive motor is installed on the side of the central hole movable base plate away from the external gear ring, and the power output shaft of the drive motor passes through the central hole movable base plate and is connected to the transmission gear.

[0012] Optionally, a filling groove is provided on one side of the transmission gear, a one-way bearing is installed in the filling groove, and flexible filler is filled between the one-way bearing and the transmission gear.

[0013] Optionally, the rotating tabletop has a central through hole, and the central through hole is provided in the center of the removable base plate. The central through hole, the bearing inner ring, and the through hole are coaxially arranged to form a space for placing the stove.

[0014] Optionally, a mounting groove is provided in the middle of the connector for mounting an auxiliary support wheel, which together with the external gear ring supports the rotating tabletop.

[0015] On the other hand, the present invention provides a table, comprising: a common frame table as described above; a fixed tabletop, installed on the outer ring frame of the common frame table, the fixed tabletop having a cavity at its center; a rotating tabletop, rotatably installed in the cavity of the fixed tabletop and installed on a first connecting structure; and an extended tabletop, installed on the first connecting structure of the outer ring frame.

[0016] The implementation of this invention offers the following advantages: By creating a "shared frame" basic structure consisting of an inner ring frame, an outer ring frame, and connectors, this invention highly integrates and unifies the first connecting structure for connecting the rotating desktop, the second connecting structure for connecting the extended desktop, and the third connecting structure for connecting the table legs within a stable, rigid frame. This provides a standardized, modular platform where users can flexibly choose to install a rotating desktop, an extended desktop, or maintain a fixed desktop, depending on their specific usage scenario. Each functional module can achieve stable and reliable connections through its corresponding standard interfaces, fundamentally solving the functional fragmentation and unstable connection problems caused by split structures. Furthermore, since all connection points share the same main support frame, rather than stacking independent structural components, space utilization is greatly optimized, significantly reducing unnecessary increases in overall table thickness and structural bulkiness caused by multifunctionality, thus achieving a balance between functional richness and structural compactness. Attached Figure Description

[0017] Figure 1 This is an exploded view of the shared-frame table frame in one embodiment; Figure 2 This is a schematic diagram of the shared-frame table frame in one embodiment; Figure 3 This is a bottom view of a shared-frame table frame in one embodiment; Figure 4 This is an exploded view of the first connection structure in one embodiment; Figure 5 This is a schematic diagram of the structure of the central hole movable base plate in one embodiment; Figure 6 In one embodiment, Figure 1 Enlarged view of region A in the middle; Figure 7 This is a schematic diagram of the structure of Example 3; Figure 8 This is a schematic diagram of the table leg installation structure in one embodiment; Figure 9 This is a schematic diagram of the structure of a box-type hinge in one embodiment; Figure 10 This is an exploded view of a box-type hinge in one embodiment; Figure 11 This is a schematic diagram of the structure of the second adapter plate and the external threaded rod in one embodiment; Figure 12 This is a schematic diagram of the transmission gear in one embodiment; Figure 13 This is an exploded view of the transmission gear in one embodiment; Figure 14 This is a schematic diagram of the connector structure in one embodiment; Figure 15 This is a schematic diagram of the structure of the third adapter plate and the table leg mounting tube in one embodiment.

[0018] In the picture: 1. Inner ring frame; 2. Outer ring frame; 21. Circular tube beam; 211. Operating port; 212. First locking hole; 213. Second locking hole; 22. Telescopic pin; 3. Connector; 31. Mounting groove; 32. Internal threaded fixing reinforcing plate; 33. Switch mounting plate; 331. Switch mounting hole; 34. Angled connecting short tube; 4. First connecting structure; 41. Bearing inner ring; 411. First mounting hole; 42. Bearing outer ring; 421. Second mounting hole; 43. External gear ring; 431. Third mounting hole; 5. Second connecting structure; 51. Arc-shaped frame; 52. Extension sleeve; 53. Folding hinge; 54. Connecting arc short tube; 6. Table leg; 61. First adapter plate; 62. Hinge housing; 621. Hinge Mounting hole; 622, slider support hole; 623, pivot hole; 624, adjustment groove; 63, moving hinge; 631, table leg mounting hole; 632, locking groove; 633, slider clearance groove; 64, hinge pivot; 65, slider guide shaft; 651, slider; 66, second adapter plate; 661, external threaded rod; 67, third adapter plate; 671, table leg mounting tube; 672, snap-fit ​​hole; 7, drive element; 71, transmission gear; 711, filling groove; 72, flexible filler; 73, one-way bearing; 8, center hole movable base plate; 81, through hole; 82, fourth mounting hole; 83, fifth mounting hole; 9, fixed tabletop; 91, rotating tabletop; 92, outwardly expanded tabletop; 93, center through hole. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The step numbers in the following embodiments are only for ease of explanation and do not limit the order of the steps. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.

[0020] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0021] Example 1 In this embodiment, as Figure 1 and Figure 2 The table frame shown includes: Inner ring frame 1, a first connecting structure 4 is provided on the inner ring frame 1, the first connecting structure 4 is used to connect the rotating desktop 91; The outer ring frame 2 is located outside the inner ring frame 1. The outer ring frame 2 is provided with a second connecting structure 5, which is used to connect the extended desktop 92. Connector 3 is used to connect the outer ring frame 2 and the inner ring frame 1; connector 3 is provided with a third connecting structure, which is used to connect the table leg 6.

[0022] Specifically, through a "shared frame" basic structure consisting of an inner ring frame 1, an outer ring frame 2, and connectors 3, the first connecting structure 4 for connecting the rotating desktop 91, the second connecting structure 5 for connecting the extended desktop 92, and the third connecting structure for connecting the table legs 6 are highly integrated and unified within a stable rigid frame. This provides a standardized, modular platform where users can flexibly choose to install the rotating desktop 91, the extended desktop 92, or maintain the basic form of the fixed desktop 9, depending on the actual usage scenario. Each functional module, such as the rotating desktop 91 and the extended desktop 92, can obtain a stable and reliable connection through the corresponding standard interface, fundamentally solving the problems of functional fragmentation and unstable connection caused by the split structure. Furthermore, since all connection points share the same main support frame, rather than stacking independent structural components, space utilization is greatly optimized, significantly reducing unnecessary increases in overall table thickness and structural bulkiness caused by achieving multiple functions, thus achieving a unity of functional richness and structural compactness.

[0023] In this embodiment, as Figures 1-3 As shown, the inner ring frame 1 is a square frame formed by four square metal tubes connected end to end. The inner ring frame 1 is provided with several through holes or threaded holes that extend from the top wall to the bottom wall. These threaded holes or through holes cooperate with bolt assemblies to install the central hole movable base plate 8 on the inner ring frame 1.

[0024] In this embodiment, as Figures 1-3As shown, the outer ring frame 2 is also a square frame formed by connecting four square metal tubes end to end in sequence. The outer ring frame 2 is sleeved outside the inner ring frame 1, thus forming a frame similar to a "hui" character shape. A number of threaded holes or through holes penetrating from the top wall to the bottom wall are also provided on the outer ring frame 2. These through holes or threaded holes on the outer ring frame 2 cooperate with the bolt assembly to install the fixed tabletop 9 on the outer ring frame 2.

[0025] In this embodiment, as Figures 1-3 shown, the top corners of the outer ring frame 2 and the inner ring frame 1 are connected by a connecting member 3. Specifically, the ends of the four hollow square tubes of the inner ring frame 1 are cut into 45° bevel angles, so that they can be directly welded to the side wall of the connecting member 3. The connection method of the outer ring frame 2 and the connecting member 3 is the same as that of the inner ring frame 1 and the connecting member 3.

[0026] In this embodiment, the inner ring frame 1, the outer ring frame 2 and the connecting cross beam are made of the same material, which can be a square tube of metal material, so as to ensure sufficient supporting strength; preferably stainless steel, aluminum alloy, carbon steel, titanium alloy, etc., materials with the advantages of light weight and corrosion resistance.

[0027] It should be noted that, in order to facilitate the display of the positions and structures of the inner ring frame 1, the outer gear ring 43 and the driving element 7, Figures 1-3 the middle hole loose-mounted bottom plate 8, the bearing outer ring 42 and the bearing inner ring 41 are omitted in

[0028] Embodiment Two Based on Embodiment One, this embodiment provides an optional solution for the specific structure of the second connection structure 5.

[0029] In this embodiment, the shapes of the fixed tabletop 9, the outer ring frame 2 and the inner ring frame 1 are all square.

[0030] In this embodiment, as Figure 1 , Figure 3 and Figure 6 shown, the second connection structure 5 includes an extension kit, a folding hinge 53 and an extension sleeve 52 provided on the outer ring frame 2; the extended tabletop 92 is rotatably installed outside the outer ring frame 2 through the folding hinge 53; the extension sleeve 52 is arranged inside the extended tabletop 92, one end of the extension kit is fixedly arranged on the outer ring frame 2, and when the extended tabletop 92 rotates to be flush with the tabletop on the outer ring frame 2, the other end of the extension kit is clamped inside the extension sleeve 52 to fix the extended tabletop 92.

[0031] In this embodiment, the extended tabletop 92 is an arc-shaped plate, so that the shape of the square fixed tabletop 9 can be changed into an approximate circle, while expanding the tabletop area, the appearance of the tabletop is also changed, so that the table with the co-frame table frame of the present invention can be applied to different scenarios.

[0032] Correspondingly, the second connection structure 5 also includes an arc-shaped frame 51, and the extended desktop 92 is mounted on the arc-shaped frame 51 by bolt assembly.

[0033] In this embodiment, as Figure 1 and Figure 3 As shown, the folding hinge 53 includes two rotatable flaps, which are respectively mounted on the lower end face of the arc frame 51 and the lower end face of the outer ring frame 2, so that the arc frame 51 can rotate relative to the outer ring frame 2.

[0034] In this embodiment, as Figure 1 , Figure 3 and Figure 6 As shown, the extension kit includes a circular tube beam 21 and a telescopic pin. The circular tube beam 21 is fixedly mounted on the outer ring frame 2, and the telescopic pin 22 is movably mounted inside the circular tube beam 21. A positioning pin is provided on the telescopic pin 22, and a first locking hole 212 and a second locking hole 213 are provided on the circular tube beam 21. When the positioning pin is engaged in the first locking hole 212, the telescopic pin 22 is completely located inside the circular tube beam 21. At this time, the telescopic pin 22 does not restrict the arc frame 51. Under the action of gravity, the arc frame 51 and the extended desktop 92 automatically droop, and the desktop as a whole presents the square shape of the fixed desktop 9. When the positioning pin is engaged in the second locking hole 213, the telescopic pin 22 is partially located inside the extension sleeve 52, thereby limiting the arc frame 51. This ensures that the extended desktop 92 is flush with the fixed desktop 9, while the arc frame 51 cannot automatically droop under the action of gravity.

[0035] In this embodiment, the arc-shaped frame 51 includes an arc-shaped tube and a straight tube, with their ends connected to form an arc-shaped frame structure. Two folding hinges 53 are symmetrically installed on the straight tube, thereby providing more stable support for the outward-expanding desktop 92.

[0036] In this embodiment, as Figure 2 As shown, the two ends of the expansion sleeve 52 are welded or threaded to the arc-shaped tube and the straight tube, respectively, and the expansion sleeve 52 is aligned with the telescopic pin 22. The expansion sleeve 52, the straight tube, and the arc-shaped tube together form multiple supports for the outward-expanding tabletop 92, thereby effectively increasing the load-bearing capacity of the first connecting structure, so that the first connecting structure can adapt to the outward-expanding tabletop 92 made of heavier materials (such as slabs, marble, or glass).

[0037] In this embodiment, a connecting short pipe 54 is also provided on the arc-shaped frame 51. The two ends of the connecting short pipe 54 are connected to the arc-shaped pipe and the straight pipe, respectively, and the connecting short pipe 54 is parallel to the expansion sleeve 52. The connecting short pipe 52 further strengthens the mechanical strength of the arc-shaped frame 51 and enhances the connection strength between the straight pipe and the arc-shaped pipe.

[0038] In this embodiment, one end of the circular tube beam 21 is fixed to the inner ring frame 1, and the other end passes through the tube body of the outer ring frame 2 and is aligned with the expansion sleeve 52.

[0039] In this embodiment, the circular tube beam 21 has an operating port 211, which is a strip-shaped hole. The first locking hole 212 and the second locking hole 213 are located inside the strip-shaped hole and are distributed along the length of the strip-shaped hole.

[0040] In this embodiment, both the first locking hole 212 and the second locking hole 213 are threaded holes. One end of the positioning pin includes a threaded section with external threads, and the telescopic pin 22 has a through hole. After passing the threaded section of the positioning pin through the through hole on the telescopic pin 22, the positioning pin is then threadedly connected to the first locking hole 212 or the second locking hole 213, thereby fixing the telescopic pin 22 inside the circular tube beam 21.

[0041] In one possible embodiment, the expansion sleeve 52, the circular tube beam 21, and the telescopic pin 22 should be made of metal materials (such as carbon steel and stainless steel) with sufficient strength and rigidity. Their specific specifications can be determined by conventional mechanical design calculations based on the size and weight of the extended desktop 92 to ensure that they can form a stable support for the extended desktop 92.

[0042] Example 3 Based on any of the above embodiments, this embodiment provides an optional solution for the specific structure of the first connection structure 4.

[0043] In this embodiment, as Figure 4 As shown, the first connecting structure 4 is located inside the inner ring frame 1. The first connecting structure 4 includes a bearing outer ring 42 and a bearing inner ring 41 that are rotatably connected. The bearing inner ring 41 is fixedly installed on the inner ring frame 1. The rotating table 91 is installed on the bearing outer ring 42, so that the rotating table 91 can rotate relative to the fixed table 9.

[0044] In this embodiment, the outer ring 42 and the inner ring 41 of the bearing constitute a slewing bearing structure.

[0045] In this embodiment, as Figure 5 As shown, the edge of the central hole movable base plate 8 is evenly provided with a plurality of fourth mounting holes 82. The fourth mounting holes 82 correspond to the through holes or threaded holes on the inner ring frame 1, so that the central hole movable base plate 8 can be installed on the inner ring frame 1 by means of bolt assembly. The center of the central hole movable base plate 8 is provided with a through hole 81, and the outer side of the through hole 81 is provided with fifth mounting holes 83 evenly provided circumferentially.

[0046] In this embodiment, the inner bearing ring 41 has several first mounting holes 411, which correspond to the fifth mounting holes 83. This allows the inner bearing ring 41 to be fixedly mounted on the central hole mounting base plate 8 using bolt assemblies. The outer bearing ring 42 is rotatably fitted onto the inner bearing ring 41, and an external gear ring 43 is mounted on the side of the outer bearing ring 42 away from the central hole mounting base plate 8. Specifically, the outer bearing ring 42 has several second mounting holes 421 evenly arranged circumferentially, and the external gear ring 43 has several third mounting holes 431 evenly arranged. The second and third mounting holes 421 are aligned. The rotating table 91 has through holes aligned with the third mounting holes 431. This allows the rotating table 91 and the external gear ring 43 to be mounted on the outer bearing ring 42 using bolt assemblies, enabling the driving element 7 to rotate the rotating table 91 via the external gear ring 43.

[0047] In this embodiment, the rotating tabletop 91 is installed on the side of the outer gear ring 43 away from the bearing outer ring 42; the driving element 7 is installed on the central hole movable base plate 8; the outer gear ring 43 is connected to the driving element 7 in a transmission connection so that the driving element 7 can drive the rotating tabletop 91 to rotate.

[0048] In this embodiment, the driving element 7 is a drive motor, preferably a brushed DC motor. Brushed DC motors do not require electronic conversion control circuits (such as logic control circuit boards or power control circuit boards). A self-locking push-button switch (for controlling start and stop) can be connected in series with the brushed DC motor to directly connect to a USB male cable. The USB male port can be directly plugged into a mobile phone fast charger or power bank for use. It is cost-effective, compact, and durable. The output shaft of the brushed DC motor has a through-threaded hole, and a large flat nut screw is installed to prevent the transmission gear 71 from falling off the output shaft of the drive motor or from shifting and jamming.

[0049] In this embodiment, as Figure 6 As shown, a transmission gear 71 is provided on the power output shaft of the drive motor. The transmission gear 71 meshes with the external gear ring 43, so that the drive element 7 can drive the rotating table 91 to rotate through the external gear ring 43.

[0050] Specifically, the drive motor is installed on the side of the centrally mounted base plate 8 away from the external gear ring 43, and the power output shaft of the drive motor passes through the centrally mounted base plate 8 and is connected to the transmission gear 71. By setting the drive motor on the bottom surface of the centrally mounted base plate 8, the installation space requirements of the drive element 7 are met, and interference between the drive element 7 and structures such as the external gear ring 43 on the top surface of the centrally mounted base plate 8 is avoided, thereby further reducing the space requirements for installing the rotating tabletop 91.

[0051] In this embodiment, as Figure 12 and Figure 13As shown, a filling groove 711 is provided on the side of the transmission gear 71 near the central hole movable base plate 8, and the filling groove 711 is filled with flexible filler 72. By filling one side of the transmission gear 71 with flexible filler 72, a silent gear is formed. By having the flexible filler contact the top surface of the central hole movable base plate 8, rigid contact between the transmission gear 71 and the central hole movable base plate 8 is avoided, thereby reducing the noise generated when the drive element 7 drives the transmission gear 71 to rotate, further improving the user experience.

[0052] Specifically, the flexible filler 72 is preferably made of a soft and wear-resistant material such as rubber, silicone, or sound-absorbing cotton.

[0053] In this embodiment, as Figure 13 As shown, the transmission gear 71 also includes a one-way bearing 73, which is connected to the power output shaft of the drive motor. The one-way bearing 73 is installed in the filling groove 711, and the one-way bearing 73 and the side wall of the filling groove 711 are tightly filled by flexible filler 72, so that under normal conditions, the drive motor can drive the entire transmission gear 71 to rotate through the one-way bearing 73. When the force on the transmission gear 71 exceeds the frictional force provided by the flexible filler 72, the flexible filler 72 will slip, thereby protecting the drive motor from overload. In use, if someone manually rotates the rotating tabletop 91 in the opposite direction, it will only require effort but will not damage the connection between the drive motor and the transmission gear 71. If the user wants to temporarily stop at a certain food station, they can press the rotating tabletop 91, causing the flexible filler 72 and the one-way bearing 73 to slip, thus pausing the rotation of the tabletop 91. When the user releases the rotating tabletop 91, the resistance provided to the transmission gear 71 is less than the frictional force provided by the flexible filler 72, and the drive motor can resume driving the rotating tabletop to rotate. During use, users can manually rotate the rotating tabletop 91 in the direction of the drive motor to speed up the arrival of a dish.

[0054] In one possible embodiment, such as Figure 7 As shown, the drive element 7 is installed below the central hole movable base plate 8, and the output axis passes through the central hole movable base plate 8 and then meshes with the external gear ring 43, thereby avoiding interference between the drive element 7 and other components.

[0055] In another possible embodiment, the drive element 7 can also be mounted on the side of the inner ring frame 1, and power can be transmitted to the gear meshing with the outer gear ring 43 through a set of bevel gears or belt / chain drive.

[0056] In this embodiment, the rotating tabletop 91 has a central through hole 93, and the central through hole 81 is formed by a through hole 81. The central through hole 93, the bearing inner ring 41, and the through hole 81 are coaxially arranged to form a space for placing cooktops. This space is used to place interchangeable cooktops of different energy types (e.g., gas stoves, coal stoves, and electric turntable hot pot combinations with USB fast charging heads or power banks, convenient for both indoor and outdoor use), thus creating a space on the entire tabletop suitable for cooking, boiling, and hot pot. When the cooktop is not in use, a cover can be installed on the rotating tabletop 91 to cover the central through hole 93.

[0057] In this embodiment, as Figures 1-3 As shown, the top surface of the middle part of the connector 3 is also provided with a mounting groove 31. The mounting groove 31 is used to install the auxiliary support wheel. The mounting groove 31 is located in the outer edge area of ​​the bottom of the rotating table 91. The highest point of the auxiliary support wheel protrudes beyond the top surface of the connector 3, thereby supporting the outer edge area of ​​the bottom of the rotating table 91. The outer gear ring 43 supports the inner edge area of ​​the bottom of the rotating table 91.

[0058] In this embodiment, as Figure 14 As shown, the end of the connector 3 near the outer ring frame 2 is provided with an internally threaded fixing reinforcing plate 32 and a switch mounting plate 33. The internally threaded fixing reinforcing plate 32 is provided on both sides of the end of the inner cavity of the connector 3, which can further enhance the mechanical strength of the connector 3 to ensure that the end of the connector 3 has sufficient strength to install the table leg 6. At the same time, the internally threaded fixing reinforcing plate 32 has an internally threaded hole, and the switch mounting plate 33 has a through hole at the corresponding position, so that the switch mounting plate 33 can be installed on the internally threaded fixing reinforcing plate 32 by bolt assembly. Furthermore, the switch mounting plate 33 has a switch mounting hole 331 in the center, which is used to install the control switch of the drive element 7. The circuit of the control switch passes through the hollow interior of the connector 3, thereby electrically connecting the control switch to the drive element 7. The button of the control switch passes through the switch mounting hole 33, so that the user can control the opening and closing of the rotating tabletop 91 from a nearby seat.

[0059] In this embodiment, as Figure 3 As shown, the bottom of the connector 3 is provided with a diagonal short pipe 34, and the two ends of the diagonal short pipe 34 are respectively connected to the two adjacent sides of the outer ring frame 2, thereby further increasing the connection strength between the outer ring frame 2 and the connector 3.

[0060] In this embodiment, the auxiliary support wheel is rotatably disposed in the mounting groove 31, thereby providing support for the rotating tabletop 91 and guiding its rotation, thus reducing the resistance to the rotation of the rotating tabletop 91 and reducing the power requirement for the drive element 7.

[0061] In this embodiment, the auxiliary support wheel and the outer gear ring 43 simultaneously support the rotating tabletop 91, which can effectively prevent the wooden rotating tabletop from deforming or the stone slab or marble rotating tabletop from cracking.

[0062] Example 4 This embodiment provides an optional solution for the specific structure of the third connection structure, based on any of the above embodiments.

[0063] In this embodiment, the third connection structure is a detachable connection structure. That is, the table leg 6 and the connector 3 are detachably connected.

[0064] In this embodiment, as Figure 8 As shown, the third connecting structure is located at one end of the connector 3 near the outer ring frame 2, and the third connecting structure includes several threaded holes formed on the connector 3.

[0065] Specifically, the connector 3 has four threaded holes. The third connection structure includes a square first adapter plate 61 with through holes at its four corners. The first adapter plate 61 is connected to the threaded holes of the third connection structure by bolt assembly.

[0066] In one possible embodiment, the table legs 6 can also be configured to be foldable.

[0067] In an embodiment where the table leg 6 is foldable, the third connecting structure includes a box-type hinge, which includes a hinge housing 62 and a movable hinge 63 that can rotate relative to each other. The hinge housing 62 is fixedly mounted on the connector 3, and the table leg 6 is mounted on the movable hinge 63.

[0068] In this embodiment, as Figure 9 and Figure 10 As shown, the top surface of the hinge housing 62 is provided with a plurality of hinge mounting holes 621, which correspond one-to-one with the through holes on the connector 3. The bolt assembly passes through the hinge mounting holes 621 and the through holes on the connector 3 in sequence to fix the hinge housing 62 to the connector 3.

[0069] In this embodiment, as Figure 9 and Figure 10As shown, a set of opposite sides of the hinge housing 62 are provided with a pivot mounting hole 623. One end of the movable hinge 63 is provided with a hinge pivot 64. The hinge pivot 64 is rotatably installed in the pivot mounting hole 623, so that the movable hinge 63 can rotate about the hinge pivot 64 as the axis.

[0070] In this embodiment, as Figure 9 and Figure 10 As shown, an adjustment groove 624 is also provided on a set of opposite sides of the hinge housing 62. The adjustment groove 624 is located at the end of the side wall of the hinge housing 62 away from the pivot mounting hole 623. The end of the hinge housing 62 near the pivot mounting hole 623 does not have an end wall, so that the table leg 6 can rotate from this end. A slider guide shaft 65 is installed in the adjustment groove 624, and a slider 651 is installed on the slider guide shaft 65. One end of the slider 651 is located at the slider support hole 622. A slider support hole 622 is provided on the end wall of the hinge housing 62 away from the pivot mounting hole 623. The slider support hole 622 and the slider guide hole 651 together form a support for the slider 651, and the shape of the slider support hole 622 is adapted to the slider 651, so that the slider 651 can only move along the length direction.

[0071] In this embodiment, as Figure 9 and Figure 10 As shown, the movable hinge 63 has a locking groove 632 at the end away from the hinge pivot 64, and a slider clearance groove 633 is provided along the length of the middle of the movable hinge 63. When the slider guide shaft 65 is located at the end of the adjusting groove 624 away from the hinge pivot 623, the slider guide shaft 65 disengages from the locking groove 632, and the slider 651 disengages from the slider clearance groove 633. At this time, the movable hinge 63 can drive the table leg 6 to rotate freely within a range of 90°, thereby facilitating the storage and folding of the table leg 6. When the table leg 6 rotates to be perpendicular to the connector 3, the locking groove 632 aligns with the slider guide shaft 65. At this time, the slider guide shaft 65 is slid along the adjusting groove 624 to one end close to the hinge pivot 64, so that the slider guide shaft 65 abuts in the locking groove 632. At the same time, the slider 651 extends into the slider clearance groove 633, thereby limiting the movement of the hinge 63 and preventing the table leg 6 from rotating, so that the table leg 6 can form a stable support during use.

[0072] In this embodiment, the third connecting structure allows the table legs 6 to be stowed parallel to the tabletop, and also makes the table legs 6 more stable when unfolded.

[0073] In another possible embodiment, such as Figure 11As shown, the third connection structure includes a second adapter plate 66 and an externally threaded rod 661. The second adapter plate 66 is connected to the connector 3 via bolt assemblies or welding. The externally threaded rod 661 is welded to the center of the second adapter plate 66. Correspondingly, in this embodiment, the table leg 6 is a table tube with internal threads, and the table leg 6 is screwed together with the externally threaded rod 661 for easy disassembly. In this embodiment, a threaded adapter block can also be installed on the externally threaded rod 661. One end of the threaded adapter block is provided with an internally threaded hole for connection with the externally threaded rod 661; the other end is provided with an external thread for connection with the table leg 6.

[0074] In yet another possible embodiment, such as Figure 15 As shown, the third connection structure includes a third adapter plate 67 and a table leg mounting tube 671. The third adapter plate 67 is attached to the connector 3 via a threaded connection or welding connection. The table leg mounting tube 671 is welded to the center of the third adapter plate 67. The internal space of the table leg mounting tube 671 is used to install the table leg 6; the side wall of the table leg mounting tube 671 is provided with a snap-fit ​​hole 672, which is used to insert locking parts such as pins, thereby locking the table leg 6 inside the table leg mounting tube 671, making the installation and removal of the table leg 6 faster and more efficient.

[0075] Example 5 This embodiment provides a table with a rotating desktop, based on any of the above embodiments.

[0076] The table in this embodiment includes: Such as the shared-frame table frame mentioned above; The fixed desktop 9 is installed on the outer ring frame 2 of the shared frame table frame, and the fixed desktop 9 has a cavity in the center; The rotating desktop 91 is rotatably installed in the cavity of the fixed desktop 9 and is mounted on the first connecting structure 4; Table leg 6 is mounted on the third connecting structure.

[0077] In this embodiment, the rotating tabletop 91 has a through hole in the center for placing the stove.

[0078] Example 6 This embodiment provides a table with an extended desktop, based on any of the above embodiments.

[0079] The table in this embodiment includes: Such as the shared-frame table frame mentioned above; The fixed desktop 9 is installed in the upper cavity of the outer ring frame 2 of the shared frame table frame; The extended desktop 92 is installed on the first connecting structure 4 of the outer ring frame 2.

[0080] Table leg 6 is mounted on the third connecting structure.

[0081] Example 7 This embodiment provides a table with a rotating desktop and an extended desktop, based on any of the above embodiments.

[0082] In this embodiment, as Figure 7 The table shown includes: Such as the shared-frame table frame mentioned above; The fixed desktop 9 is installed on the outer ring frame 2 of the shared frame table frame, and the fixed desktop 9 has a cavity in the center; The rotating desktop 91 is rotatably installed in the cavity of the fixed desktop 9 and is mounted on the first connecting structure 4; The extended desktop 92 is installed on the first connecting structure 4 of the outer ring frame 2; Table leg 6 is mounted on the third connecting structure.

[0083] In this embodiment, the rotating tabletop 91 has a central through hole 93, which is used to place the stove.

[0084] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A shared-frame table frame, characterized in that, include: Inner ring frame (1), the inner ring frame (1) is provided with a first connecting structure (41), the first connecting structure (41) is used to connect the rotating desktop (91); An outer ring frame (2) is provided on the outside of the inner ring frame (1), and a second connecting structure (5) is provided on the outer ring frame (2). The second connecting structure (5) is used to connect the extended desktop (92). A connector (3) is used to connect the outer ring frame (2) and the inner ring frame (1); a third connecting structure is provided on the connector (3), and the third connecting structure is used to connect the table leg (6).

2. The shared-frame table frame according to claim 1, characterized in that, The outer ring frame (2) is square in shape; The second connection structure (5) includes an extension kit, a folding hinge (53), and an extension sleeve (52); The extended desktop (92) can be rotatably mounted on the outside of the outer ring frame (2) via a folding hinge (53); The expansion sleeve (52) is disposed inside the extended desktop (92). One end of the expansion kit is fixedly disposed on the outer ring frame (2). When the extended desktop (92) is rotated to be flush with the fixed desktop on the outer ring frame (2), the other end of the expansion kit is snapped into the expansion sleeve (52) to fix the extended desktop (92).

3. The shared-frame table frame according to claim 2, characterized in that, The expansion kit includes a circular tube beam (21) and a telescopic pin (22). The circular tube beam (21) is fixedly mounted on the outer ring frame (2), and the telescopic pin (22) is movably mounted inside the circular tube beam (21). The telescopic pin (22) is provided with a positioning pin, and the circular tube beam (21) is provided with a first locking hole (212) and a second locking hole (213). When the positioning pin is engaged in the first locking hole (212), the telescopic pin (22) is completely located in the circular tube beam (21); when the positioning pin is engaged in the second locking hole (213), the telescopic pin (22) is partially located in the expansion sleeve (52).

4. The shared-frame table frame according to claim 1, characterized in that, The first connecting structure (41) is located inside the inner ring frame (1). The first connecting structure (41) includes a rotatably connected outer bearing ring (42) and an inner bearing ring (41). The inner bearing ring (41) is fixedly installed on the inner ring frame (1). The rotating table (91) is installed on the outer bearing ring (42). Thus, the rotating table (91) can rotate relative to the fixed table (9).

5. The shared-frame table frame according to claim 4, characterized in that, A central hole movable base plate (8) is installed on the inner ring frame (1), the bearing inner ring (41) is fixedly installed on the central hole movable base plate (8) of the inner ring frame (1), and a driving element (7) is installed on the central hole movable base plate (8). An external gear ring (43) is installed on the side of the bearing outer ring (42) away from the central hole movable base plate (8), and the rotating table (91) is installed on the side of the external gear ring (43) away from the bearing outer ring (42); the external gear ring (43) is connected to the driving element (7) so that the driving element (7) can drive the rotating table (91) to rotate.

6. The table as described in claim 5, characterized in that, The driving element (7) is a drive motor, and a transmission gear (71) is provided on the power output shaft of the drive motor. The transmission gear (71) meshes with the external gear ring (43). The drive motor is installed on the side of the central hole movable base plate (8) away from the external gear ring (43), and the power output shaft of the drive motor passes through the central hole movable base plate (8) and is connected to the transmission gear (71).

7. The table as described in claim 6, characterized in that, A filling groove (711) is provided on one side of the transmission gear (71), a one-way bearing (73) is installed in the filling groove (711), and a flexible filler (72) is filled between the one-way bearing (73) and the transmission gear (71).

8. The table as described in claim 5, characterized in that, The rotating tabletop (91) has a central through hole (93), and the central through hole bottom plate (8) has a through hole (81) in the center. The central through hole (93), the bearing inner ring (41) and the through hole (81) are coaxially arranged to form a space for placing the stove.

9. The shared-frame table frame according to claim 5, characterized in that, The connector (3) has a mounting groove (31) in the middle, which is used to install an auxiliary support wheel. The auxiliary support wheel is used to support the rotating tabletop (91) together with the outer gear ring (43).

10. A table, characterized in that, include: The shared-frame table frame as described in any one of claims 1 to 8; A fixed desktop (9) is installed on the outer ring frame (2) of the common frame table frame, and a cavity is provided in the center of the fixed desktop (9); The rotating desktop (91) is rotatably installed in the cavity of the fixed desktop (9) and is mounted on the first connecting structure (41); The extended desktop (92) is installed on the first connection structure (41) of the outer ring frame (2).

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