Manual and electric combined type dining table turntable structure

Abstract

The utility model relates to the technical field of dining tables, and discloses a manual and electric combined dining table turntable structure which comprises a base, a rotating surface cover, a ball rotating structure and a rotating driving assembly. The gear ring is provided with a plurality of ball holes which are distributed around the central axis of the gear ring to form an annular shape. Each ball clamp is embedded into the corresponding ball hole; the base and the rotary surface cover are correspondingly buckled on the lower rail ring groove and the upper rail ring groove on the ball up and down; the thickness of the gear ring is 3-5mm; the rotary driving assembly can be electrified to drive the gear ring to automatically do circle center motion along the lower rail ring groove; and when the rotary driving assembly stops energization and the rotary surface cover is manually rotated, the rotary surface cover can do circle center motion around the axis of the lower rail annular groove. According to the manual and electric combined type dining table turntable structure, the single-layer rolling supporting design and the thin design are adopted, the occupied space is small, the structure is simple and compact, the rotating surface cover achieves the manual and automatic rotating effect, and a user can conveniently use the dining table turntable structure.

Description

Technical Field

[0001] The utility model relates to the technical field of dining tables, in particular to a combined manual and electric dining table turntable structure. Background Art

[0002] With the improvement of living standards, people's requirements for dining table turntables are no longer limited to simple rotation functions, but they pay more attention to the convenience of use, the diversity of operations, and the reasonable utilization of space. Traditional dining table turntables are mostly pure manual or pure electric types. The former relies on manual rotation, which is inconvenient to use although it does not require electricity; the latter can rotate automatically, but once there is a power outage or a malfunction, it loses its function, and it often has a large volume and occupies extra space.

[0003] To solve the above problems, a Chinese patent with the patent application number CN202322101216.4 discloses a desktop electric turntable, which includes a bottom cover, an upper cover, and a load-bearing ring. Both the bottom cover and the lower surface of the load-bearing ring are provided with rolling grooves, and balls are arranged inside the rolling grooves; through the rolling grooves and the balls, the load-bearing ring is rotatably installed on the bottom cover. Similarly, rolling grooves are also provided on the upper surfaces of the upper cover and the load-bearing ring. Therefore, the upper cover is rotatably installed on the load-bearing ring. A toothed ring is arranged on the outer surface of the load-bearing ring, and a motor for driving the toothed ring to rotate is installed horizontally between the bottom cover and the upper cover. However, this desktop electric turntable is provided with a load-bearing ring with rolling grooves on both the upper and lower sides between the bottom cover and the upper cover, and a ball rotation structure is formed by the balls in the rolling grooves. Such a ball rotation structure has a double-layer ball design, with a complex structure and a large occupied space. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problems of the prior art and provide a combined manual and electric dining table turntable structure.

[0005] To achieve the above purpose, the utility model adopts the following scheme:

[0006] A combined manual and electric dining table turntable structure, including a base and a rotating surface cover installed on the base; further comprising:

[0007] A ball rotation structure, which includes a gear ring and balls; several ball holes are arranged on the gear ring around its central axis to form a ring; each ball is embedded in the ball hole and rolls in the ball hole, and respectively protrudes above and below the top surface and the bottom surface of the gear ring; lower track ring grooves and upper track ring grooves that are coaxial and correspond to each other up and down and are buckled on the balls are respectively opened at the positions of the base and the rotating surface cover corresponding to the balls; the thickness of the gear ring is 3 - 5 mm;

[0008] A rotary drive assembly is provided on the base and is drivably connected to the gear ring, and can be energized to drive the gear ring to automatically perform a circular motion around the axis of the lower rail ring groove along the lower rail ring groove;

[0009] When the rotary drive assembly stops being energized and the rotary face cover is manually rotated, the rotary face cover performs a circular motion around the axis of the lower rail ring groove relative to the gear ring under the action of the rolling of the balls along the upper rail ring groove.

[0010] Further, the radius of each ball is greater than the groove depth of the lower rail ring groove and the groove depth of the upper rail ring groove; the center position of the ball is on the central horizontal plane in the up-and-down direction of the gear ring.

[0011] Further, the balls are steel balls or plastic beads.

[0012] Further, the rotary drive assembly includes a motor and a gear transmission member; the motor is installed on the base; the output shaft of the motor is connected to the gear transmission member; the gear transmission member is meshed and connected to the gear ring.

[0013] Further, the base is an annular base; the rotary face cover is an annular cover body; both the center positions of the base and the rotary face cover have a hollow opening.

[0014] Further, the base has an installation ring groove; the lower rail ring groove is installed on the bottom of the installation ring groove; a limiting ring plate located on one side of the lower rail ring groove is provided on the bottom of the installation ring groove; the limiting ring plate and a groove side wall of the installation ring groove enclose a limiting ring groove;

[0015] The rotary face cover includes a ring cover plate and a limiting embedding plate; the upper rail ring groove is installed on the bottom surface of the ring cover plate; the limiting embedding plate is provided on the bottom surface of the ring cover plate corresponding to the position of the limiting ring groove and can be embedded into the limiting ring groove, and can perform a circular motion around the axis of the lower rail ring groove in the limiting ring groove.

[0016] Further, the outer side wall diameter of the rotary face cover is greater than or equal to the outer side wall diameter of the base; a carved annular raised band is provided on the top surface of the ring cover plate.

[0017] Further, the base is an inverted disk-shaped base; the rotary face cover is a circular plate-shaped cover body;

[0018] The outer side wall of the base has a side wall extension portion that extends upward toward the top surface of the base and is used to support the rotary face cover; the lower rail ring groove is located on the top surface of the base;

[0019] The upper rail ring groove is located on the bottom surface of the rotary face cover.

[0020] Furthermore, a rotary coupler is provided on the base; the rotary coupler has a screw hole wiring part for wire embedding and a locking screw that is threadedly connected to cooperate with the screw hole wiring part to lock and fix the wire.

[0021] Furthermore, a number of clamping members are installed on the side wall extension part, which are evenly arranged around the central axis of the base and are used to limit the derailment and separation of the rotary face cover; a support boss is provided at the center position of the top surface of the rotary face cover and a number of support protrusions are evenly arranged along its edge; a number of grid holes are provided on the rotary face cover and are arranged around the support boss.

[0022] Compared with the existing technology, the utility model has the following advantages:

[0023] 1. The thin design of the ball rotary structure of the utility model limits the thickness of the designed gear ring. The thickness of the gear ring is designed to be 3 - 5 mm, which not only ensures sufficient strength but also takes into account the lightweight requirement, and can limit the ball size to achieve a flat and thin effect. It is connected between the base and the rotary face cover, occupies a small space, has a compact structure, and is conducive to the thin design of the overall structure.

[0024] 2. On the basis of the base and the rotary face cover of the utility model, a ball rotary structure and a rotary drive assembly are added. The ball rotary structure is improved. A lower rail ring groove and an upper rail ring groove are respectively provided on the base and the rotary face cover. A number of balls are installed in the corresponding ball holes and are effectively buckled and distributed between the lower rail ring groove and the upper rail ring groove to form a single-layer rolling support, which greatly reduces the friction during rotation; when the rotary drive assembly is powered on, the drive gear ring automatically makes a circular motion around its axis along the lower rail ring groove, thereby realizing the automatic rotation of the rotary face cover. When the power is turned off and the user selects manual operation, the rotary drive assembly stops working, and the rotary face cover makes a circular motion relative to the gear ring around the axis of the lower rail ring groove under the action of the balls rolling along the upper rail ring groove, which does not affect the smoothness of manual rotation; with such a design, the structure is simple, and the single-layer rolling support design enables the rotary face cover to achieve the effects of manual and automatic rotation, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further describes the present application in detail with reference to the drawings and specific embodiments.

[0026] Figure 1 is an exploded three-dimensional structural schematic diagram of Embodiment 1 of the manual and electric combined type table turntable structure of the utility model.

[0027] Figure 2 is Figure 1 the enlarged structural schematic diagram of Part A shown in the figure.

[0028] Figure 3Schematic perspective view of the rotary face cover of Embodiment 1 of the present utility model.

[0029] Figure 4 Schematic perspective view of Embodiment 1 of the combined manual and electric table turntable structure of the present utility model.

[0030] Figure 5 One of the schematic perspective views of Embodiment 2 of the combined manual and electric table turntable structure of the present utility model.

[0031] Figure 6 Exploded schematic perspective view of Embodiment 2 of the combined manual and electric table turntable structure of the present utility model.

[0032] Figure 7 Schematic perspective view of the rotary face cover of Embodiment 2 of the present utility model.

[0033] Figure 8 Another schematic perspective view of Embodiment 2 of the combined manual and electric table turntable structure of the present utility model.

[0034] The figure includes:

[0035] Base 1, mounting ring groove 11, limiting ring plate 12, limiting ring groove 13, side wall extension 14, rotary face cover 2, ring cover plate 21, carved ring-shaped raised belt 211, limiting panel 22, ball rotary structure 3, gear ring 31, ball holes 311, balls 32, lower rail ring groove 4, upper rail ring groove 5, rotary drive assembly 6, motor 61, gear transmission member 62, rotary coupler 7, screw hole wiring part 71, positioning member 8, support boss 9, support protrusion 10, grille hole 20. Detailed implementation manners

[0036] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0037] Embodiment 1:

[0038] As Figures 1 to 4 shown, a combined manual and electric table turntable structure includes a base 1 and a rotary face cover 2, a ball rotary structure 3 and a rotary drive assembly 6 mounted on the base 1. Among them, the base 1 stably supports the entire rotary face cover 2 and the ball rotary structure 3, and the rotary face cover 2 is used to carry the table board so that the table board can stably carry tableware and food. A smooth rotary motion is achieved between the two through the innovative ball rotary structure 3.

[0039] The ball rotation structure 3 includes a gear ring 31 and balls 32; several ball holes 311 are arranged on the gear ring 31 around its central axis to form a ring; each ball 32 is clamped into the ball hole 311 and rolls in the ball hole 311, and protrudes above and below the top and bottom surfaces of the gear ring 31 respectively; the balls 32 are steel balls or plastic beads, with a simple structure, which is beneficial to form a stable rolling support. Of course, it can also be made of other materials. The base 1 and the rotating face cover 2 are respectively provided with a lower rail groove 4 and an upper rail groove 5 that are coaxial and are buckled on the balls 32 up and down correspondingly at the positions corresponding to the balls 32; the thickness of the gear ring 31 is 3-5 mm, and preferably can be 4 mm or 5 mm. The ball rotation structure 3 is designed to be thin. By limiting the thickness of the gear ring 31, the thickness of the gear ring 31 is designed to be 3-5 mm, which not only ensures sufficient strength but also takes into account the lightweight requirement, and can limit the size of the balls 32 to achieve a flat and thin effect. It is connected between the base 1 and the rotating face cover 2, occupies a small space, has a compact structure, and is beneficial to the thin design of the overall structure. The rotation driving assembly 6 is arranged on the base 1 and is drivably connected to the gear ring 31, and can be energized to drive the gear ring 31 to automatically make a circular motion around the axis of the lower rail groove 4 along the lower rail groove 4; when the rotation driving assembly 6 stops being energized and the rotating face cover 2 is manually rotated, the rotating face cover 2 makes a circular motion relative to the gear ring 31 around the axis of the lower rail groove 4 under the action of the balls 32 rolling along the upper rail groove 5.

[0040] Based on the base 1 and the rotating face cover 2, a ball rotation structure 3 and a rotation driving assembly 6 are added, and the ball rotation structure 3 is improved. A lower rail groove 4 and an upper rail groove 5 are respectively arranged on the base 1 and the rotating face cover 2, and several balls 32 are installed in the corresponding ball holes 311 and are effectively clamped and distributed between the lower rail groove 4 and the upper rail groove 5 to form a single-layer rolling support, greatly reducing the friction during rotation; when the rotation driving assembly 6 is energized, it drives the gear ring 31 to automatically make a circular motion around its axis along the lower rail groove 4, so as to realize the automatic rotation of the rotating face cover 2. When the power is turned off and the user chooses to operate manually, the rotation driving assembly 6 stops working, and the rotating face cover 2 makes a circular motion relative to the gear ring 31 around the axis of the lower rail groove 4 under the action of the balls 32 rolling along the upper rail groove 5, without affecting the smoothness of manual rotation. With such a design, the structure is simple and the single-layer rolling support design enables the rotating face cover 2 to achieve the effects of manual and automatic rotation, which is convenient for users.

[0041] In order to stably install the ball 32 in the lower rail annular groove 4 and the upper rail annular groove 5 and form a stable rolling support for the rotating face cover 2, the radius of the ball 32 is greater than the groove depth of the lower rail annular groove 4 and the groove depth of the upper rail annular groove 5; designing the dimensional relationship among the radius of the ball 32, the groove depth of the lower rail annular groove 4, and the groove depth of the upper rail annular groove 5 is beneficial to enhancing the stability of the ball 32 rolling in the lower rail annular groove 4 and the upper rail annular groove 5, with a large contact area, closely adhering to roll in the lower rail annular groove 4 and the upper rail annular groove 5, and forming a stable rolling support for the rotating face cover 2.

[0042] Preferably, the center position of the ball center of the ball 32 is on the central horizontal plane in the up-and-down direction of the gear ring 31. Designing the ball 32 and the gear ring 31 in this way makes the ball 32 protrude higher and lower than the top surface and the bottom surface of the gear ring 31, limiting that the positions where the ball 32 is buckled in the lower rail annular groove 4 and the upper rail annular groove 5 are the same, and the structural compactness is better.

[0043] In this embodiment, the rotation driving assembly 6 includes a motor 61 and a gear transmission member 62; the motor 61 is installed on the base 1; the output shaft of the motor 61 is connected to the gear transmission member 62; the gear transmission member 62 is meshed and connected with the gear ring 31. When the motor 61 is powered on, the motor 61 is used to drive the gear ring 31 to automatically perform a circular motion around the axis of the lower rail annular groove 4 along the lower rail annular groove 4. After the ball 32 rotates, relative friction is generated with the upper rail annular groove 5, thereby driving the rotating face cover 2 to rotate, achieving the effect of automatically rotating the rotating face cover 2. After the power is turned off and the motor 61 stops power supply, the gear transmission member 62 restricts the rotation of the gear ring 31. At this time, the user manually rotates the rotating face cover 2 to generate a rotating force, causing the ball 32 to roll along the upper rail annular groove 5. The rotating face cover 2 performs a circular motion around the axis of the lower rail annular groove 4 relative to the gear ring 31 under the action of the ball 32 rolling along the upper rail annular groove 5, without affecting the smoothness of manual rotation, realizing the automatic and manual rotation of the rotating face cover 2 and facilitating the user to use.

[0044] In this embodiment, the base 1 is an annular base 1; the rotating face cover 2 is an annular cover body; designing the base 1 and the rotating face cover 2 in this way, both the center positions of the base 1 and the rotating face cover 2 have a hollow opening, realizing a lightweight design of the structure.

[0045] Specifically, the base 1 has an installation ring groove 11; the lower rail ring groove 4 is installed on the bottom of the installation ring groove 11; a limiting ring plate 12 located on one side of the lower rail ring groove 4 is provided on the bottom of the installation ring groove 11; the limiting ring plate 12 and a groove side wall of the installation ring groove 11 enclose a limiting ring groove 13; the rotary surface cover 2 includes a ring cover plate 21 and a limiting insertion plate 22; the upper rail ring groove 5 is installed on the bottom surface of the ring cover plate 21; the limiting insertion plate 22 is arranged on the bottom surface of the ring cover plate 21 corresponding to the position of the limiting ring groove 13 and can be embedded into the limiting ring groove 13 and can make a circular motion around the axis of the lower rail ring groove 4 in the limiting ring groove 13. The installation ring groove 11, the limiting ring plate 12 and the limiting ring groove 13 are designed on the base 1, the ring cover plate 21 and the limiting insertion plate 22 are designed to form the rotary surface cover 2, the limiting insertion plate 22 is embedded into the limiting ring groove 13 and can make a circular motion around the axis of the lower rail ring groove 4 in the limiting ring groove 13, so as to realize the stable automatic and manual rotation of the rotary surface cover 2 on the base 1 and prevent the rotary surface cover 2 from derailing during rotation, and the overall structure has good stability.

[0046] Preferably, the outer side wall diameter of the rotary surface cover 2 is greater than or equal to the outer side wall diameter of the base 1; designing the rotary surface cover 2 and the base 1 in this way can better enable the base 1 to stably support the entire rotary surface cover 2.

[0047] In order to enable the rotary surface cover 2 to have characteristics such as good support stability, good aesthetics, and good anti-slip performance, a carved ring-shaped convex band 211 is provided on the top surface of the ring cover plate 21.

[0048] Embodiment 2:

[0049] In the embodiment, as Figures 5 to 8 shown, the manual and electric combined type dining table turntable structure of Embodiment 2 is basically the same as that of Embodiment 1, the difference is that the base 1 is an inverted disc-shaped base 1; the rotary surface cover 2 is a circular plate-shaped cover body; the outer side wall of the base 1 has a side wall extension part 14 that extends upward toward the top surface of the base 1 and is used to support the rotary surface cover 2; the lower rail ring groove 4 is located on the top surface of the base 1; the upper rail ring groove 5 is located on the bottom surface of the rotary surface cover 2. Designing the base 1 and the rotary surface cover 2 in this way facilitates the installation of structures such as heating elements and rotary drive components 6, integrates multiple functional structures, and is convenient for users to use.

[0050] Preferably, a rotary coupler 7 is provided on the base 1; specifically, the rotary coupler 7 is installed at the central position of the base 1. The rotary coupler 7 has a screw hole wiring part 71 for wire embedding and a locking screw that is threadedly connected to cooperate with the screw hole wiring part 71 to lock and fix the wire. The wire is embedded into the screw hole of the screw hole wiring part 71, and then the locking screw is adaptively embedded into the screw hole of the screw hole wiring part 71 to lock and fix the wire. The wire is a live wire or a neutral wire. With such a design, compared with the traditional method of locking wires with plug-in pieces, the threaded connection between the locking screw and the screw hole wiring part 71 is used to achieve stable wire connection, with a stable structure, not easy to loosen and fall off, and achieving a good conductive effect. Of course, the screw hole wiring part 71 and the locking screw are used as a set of power connection structures, and their quantity can be reasonably designed according to requirements; in this embodiment, there are 4 sets of power connection structures with the screw hole wiring part 71 and the locking screw as a set. It should be noted that the locking screw is a conventional structural design and can be easily imagined, and it is not shown in the drawings.

[0051] In this embodiment, a plurality of positioning members 8 are installed on the side wall extension 14, which are evenly arranged around the central axis of the base 1 and are used to limit the derailment and separation of the rotary cover 2. With such a design of the positioning members 8, the rotary cover 2 can be effectively prevented from derailing and separating during rotation, and the structural stability is good.

[0052] To better support the tabletop and facilitate user use, a support boss 9 is provided at the central position of the top surface of the rotary cover 2, and a plurality of support protrusions 10 are evenly arranged along its edge. A plurality of grid holes 20 are provided on the rotary cover 2 and are arranged around the support boss 9. The design of the grid holes 20 facilitates the heat dissipation of the structure. For example, this manually and electrically combined type table turntable structure is a table structure of a hot dish plate series.

[0053] In addition, for the gear ring 31, it can be an internal gear ring 31 or an external gear ring 31, which is mainly designed according to the installation position of the rotary drive assembly 6. In this application, the gear ring 31 in Embodiment 1 is an external gear ring 31, and the rotary drive assembly 6 is installed on the outside of the base 1. The gear ring 31 in Embodiment 2 is an internal gear ring 31, and the rotary drive assembly 6 is installed inside the base 1.

[0054] In summary, the embodiment of the present utility model provides a manually and electrically combined type table turntable structure, which has the following advantages:

[0055] First, the ball rotary structure 3 is designed to be thin. The thickness of the gear ring 31 is limited. The thickness of the gear ring 31 is designed to be 3-5 mm, which not only ensures sufficient strength but also takes into account the lightweight requirement, and the size of the ball 32 can be limited to achieve a flat and thin effect. It is connected between the base 1 and the rotary cover 2, occupying a small space, with a compact structure, which is beneficial to the overall thin design of the structure.

[0056] II. On the basis of the base 1 and the rotating face cover 2, a ball rotating structure 3 and a rotation driving assembly 6 are added. The ball rotating structure 3 is improved. A lower rail ring groove 4 and an upper rail ring groove 5 are respectively arranged on the base 1 and the rotating face cover 2. A number of balls 32 are installed in corresponding ball holes 311 and are effectively buckled and distributed between the lower rail ring groove 4 and the upper rail ring groove 5 to form a single-layer rolling support, greatly reducing the friction during rotation. When the rotation driving assembly 6 is powered on, the driving gear ring 31 automatically makes a circular motion around its axis along the lower rail ring groove 4, thereby realizing the automatic rotation of the rotating face cover 2. When the power is turned off and the user selects manual operation, the rotation driving assembly 6 stops working, and the rotating face cover 2 makes a circular motion around the axis of the lower rail ring groove 4 relative to the gear ring 31 under the action of the balls 32 rolling along the upper rail ring groove 5, without affecting the smoothness of manual rotation. With such a design, the structure is simple, and the single-layer rolling support design enables the rotating face cover 2 to achieve the effects of manual and automatic rotation, facilitating user use.

[0057] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A manual and electric combined dining table turntable structure, comprising a base and a rotating cover mounted on the base; characterized in that: Also includes: The ball rotating structure comprises a gear ring and a ball; the gear ring is provided with a plurality of ball holes arranged around its central axis to form an annular ball hole; each ball is inserted into the ball hole and rolls in the ball hole, and is respectively convex higher and lower than the top and bottom surfaces of the gear ring; the base and the rotating surface cover are respectively provided with a lower rail ring groove and an upper rail ring groove which are coaxial and corresponding to each other and buckled on the ball at the position corresponding to the ball; the thickness of the gear ring is 3-5mm; A rotary drive assembly, which is disposed on the base and is transmission-connected to the gear ring, and can be electrically driven to drive the gear ring to automatically move along the lower rail ring groove and around the axis of the lower rail ring groove to make a circular motion; When the rotary drive assembly stops being powered and the rotary surface cover is rotated manually, the rotary surface cover moves in a circular motion relative to the gear around the axis of the lower rail ring groove under the rolling action of the ball along the upper rail ring groove.

2. The manual and electric combined dining table turntable structure according to claim 1 is characterized in that: The radius of the ball is greater than the groove depth of the lower rail ring groove and the groove depth of the upper rail ring groove; the ball center position of the ball is on the central horizontal plane in the up and down directions of the gear ring.

3. The manual and electric combined dining table turntable structure according to claim 1 is characterized in that: The balls are steel balls or plastic balls.

4. The manual and electric combined dining table turntable structure according to claim 1 is characterized in that: The rotary drive assembly comprises a motor and a gear transmission member; the motor is mounted on the base; the output shaft of the motor is connected to the gear transmission member; the gear transmission member is meshedly connected to the gear ring.

5. The manual and electric combined dining table turntable structure according to any one of claims 1 to 4, characterized in that: The base is an annular base; the rotating surface cover is an annular cover body; and the center positions of the base and the rotating surface cover are both provided with a hollow opening.

6. The manual and electric combined dining table turntable structure according to claim 5, characterized in that: The base is provided with a mounting ring groove; the lower rail ring groove is installed on the groove bottom of the mounting ring groove; a limiting ring plate is provided on the groove bottom of the mounting ring groove and is located on one side of the lower rail ring groove; the limiting ring plate and a groove side wall of the mounting ring groove form a limiting ring groove; The rotating surface cover includes a ring cover plate and a limiting insert plate; the upper rail ring groove is installed on the bottom surface of the ring cover plate; the position of the limiting insert plate corresponding to the limiting ring groove is arranged on the bottom surface of the ring cover plate and can be embedded in the limiting ring groove, and can make a circular motion around the axis of the lower rail ring groove in the limiting ring groove.

7. The manual and electric combined dining table turntable structure according to claim 6, characterized in that: The outer wall diameter of the rotating surface cover is greater than or equal to the outer wall diameter of the base; the top surface of the ring cover plate is provided with a carved annular raised belt.

8. The manual and electric combined dining table turntable structure according to any one of claims 1 to 4, characterized in that: The base is an inverted disc-shaped base; the rotating surface cover is a circular plate-shaped cover; The outer side wall of the base has a side wall extension portion extending upward toward the top surface of the base and used to support the rotating surface cover; the lower rail ring groove is located on the top surface of the base; The upper rail ring groove is located on the bottom surface of the rotating surface cover.

9. The manual and electric combined dining table turntable structure according to claim 8, characterized in that: The base is provided with a rotary coupler; the rotary coupler has a screw hole connection part for embedding electric wires and a locking screw threadedly connected with the screw hole connection part to lock and fix the electric wires.

10. The manual and electric combined dining table turntable structure according to claim 8, characterized in that: The side wall extension is provided with a plurality of locking members which are evenly arranged around the central axis of the base and are used to limit the derailment and separation of the rotating surface cover; the top surface of the rotating surface cover is provided with a supporting boss located at its center position and a plurality of supporting protrusions evenly arranged along its edges; the rotating surface cover is provided with a plurality of grille holes arranged around the supporting boss.

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