Bearing type sprocket table turntable

Abstract

The utility model discloses a bearing formula chain wheel dining table turntable relates to dining table turntable technical field. Including inside turntable and outside turntable, outside turntable includes two same length straight pole, and the both ends of straight pole are provided semicircular arc link, and two straight poles are connected respectively in the both ends of arc link, and inside turntable is the frame of rectangle, and the length of inside turntable is same with the length of straight pole, the both ends of inside turntable are fixedly connected with the rotating disc of circular ring, and the arc link of outside turntable is concentric and is arranged, and the outside of rotating disc is equipped with the chain wheel, and the chain between the both sides chain wheel of inside turntable is equipped and is engaged, and the bottom concentric of chain wheel is provided with ring internal gear, and the inside engagement of internal gear is provided with external gear, and external gear is rotatably connected with inside turntable, and the external gear one side of one end of inside turntable is provided with drive mechanism, and drive external gear rotates, and inside turntable is used for fixing the tabletop with outside turntable.

Description

Technical Field

[0001] This utility model relates to the field of dining table turntable technology, specifically to a bearing-type sprocket dining table turntable. Background Technology

[0002] A sprocket turntable is a dining table device that uses the principle of sprocket and chain drive to achieve rotation. It generally includes a driving sprocket and a driven sprocket. The driving sprocket is driven by a motor, while the driven sprocket serves to support and guide the chain.

[0003] Existing dining table turntables use a motor to drive a sprocket to rotate, which in turn moves a chain, causing a fixed tray to move. However, for large-diameter tabletops, a larger diameter sprocket is required. Increasing the sprocket diameter can easily lead to sprocket deformation, thus affecting the normal operation of the dining table. Utility Model Content

[0004] Therefore, this utility model provides a bearing-type sprocket turntable to solve the problems existing in the above-mentioned technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bearing-type sprocket turntable includes an inner turntable and an outer turntable. The outer turntable includes two straight rods of the same length, with semi-circular arc rods at both ends of the straight rods. The two straight rods are respectively connected to the two ends of the arc rods. The inner turntable is a rectangular frame, and the length of the inner turntable is the same as the length of the straight rods.

[0007] Both ends of the inner turntable are fixedly connected to annular rotating disks. The rotating disks are concentrically arranged with the arc-shaped rods of the outer turntable. A sprocket is sleeved on the outer side of the rotating disk. A chain is sleeved and meshed between the two sprockets on the inner turntable. An annular internal gear is concentrically arranged at the bottom of the sprocket. An external gear is meshed on the inner side of the internal gear. The external gear is rotatably connected to the inner turntable. A drive mechanism is provided on one side of the external gear at one end of the inner turntable to drive the external gear to rotate.

[0008] The inner and outer turntables are used to fix the desktop.

[0009] Optionally, the drive mechanism includes a drive motor and a power supply. The power supply and the drive motor are both fixedly connected to the bottom of the inner turntable. The power supply is electrically connected to the drive motor, and the output shaft of the drive motor is connected to an external gear transmission.

[0010] Optionally, a groove is provided at a position where the inner turntable is parallel to the straight rod. The groove is fixedly connected to the top of the inner turntable, and the chain is placed in the groove.

[0011] Optionally, the internal gear and the sprocket are integrally formed.

[0012] Optionally, a reinforcing rod is provided between the straight rod of the outer turntable and the inner turntable, and the reinforcing rod is fixedly connected to the outer turntable and the inner turntable respectively.

[0013] Optionally, the inner turntable is provided with a support plate along its width direction, and the support plate is fixedly connected to the inner turntable.

[0014] This utility model has at least the following beneficial effects:

[0015] This invention features rotating discs at both ends of an inner turntable, with the rotating discs fixedly connected to the inner turntable. A sprocket is fitted onto the outer side of the rotating disc, forming a bearing-like structure with the rotating disc. A drive mechanism rotates an external gear, which in turn rotates a meshing internal gear. The internal gear then rotates the sprocket fixed to it, thereby moving the chain. A tray can be attached to the chain to move the plates. The bearing-like rotating structure, with the rotating disc supporting the sprocket, prevents sprocket deformation from affecting chain movement, even with a wide tabletop and a large sprocket diameter, ensuring the normal operation of the dining table. Attached Figure Description

[0016] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a first-view structural diagram of an embodiment of the present invention;

[0019] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Inner turntable; 2. Outer turntable; 201. Straight rod; 202. Arc rod; 3. Rotating disk; 4. Sprocket; 5. Chain; 6. Internal gear; 7. External gear; 8. Drive mechanism; 801. Drive motor; 802. Power supply; 9. Slide groove; 10. Reinforcing rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0024] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0025] like Figure 1 and Figure 2 As shown, this utility model discloses a bearing-type sprocket 4 dining table turntable, including an inner turntable 1 and an outer turntable 2. The outer turntable 2 includes two straight rods 201 of the same length. The two ends of the straight rods 201 are provided with semi-circular arc rods 202. The two straight rods 201 are respectively connected to the two ends of the arc rods 202. The inner turntable 1 is a rectangular frame, and the length of the inner turntable 1 is the same as the length of the straight rods 201.

[0026] Both ends of the inner turntable 1 are fixedly connected to annular rotating disks 3. The rotating disks 3 and the arc-shaped rods 202 of the outer turntable 2 are concentrically arranged. A sprocket 4 is sleeved on the outer side of the rotating disk 3. A chain 5 is sleeved and meshed between the two sprockets 4 on the inner turntable 1. An annular internal gear 6 is concentrically arranged at the bottom of the sprocket 4. An external gear 7 is meshed on the inner side of the internal gear 6. The external gear 7 is rotatably connected to the inner turntable 1. A drive mechanism 8 is arranged on one side of the external gear 7 at one end of the inner turntable 1 to drive the external gear 7 to rotate.

[0027] The inner turntable 1 and the outer turntable 2 are used to fix the desktop.

[0028] The outer turntable 2 consists of two straight rods 201 and two semi-circular arc rods 202. The two straight rods 201 are spaced apart according to the diameter of the arc rods 202. The two ends of the arc rods 202 are connected to the ends of the two straight rods 201. Both the straight rods 201 and the arc rods 202 can be made of stainless steel and welded together, or they can be integrally formed. The inner turntable 1 is a rectangular frame structure, which can be welded together from four stainless steel rods or integrally formed. The inner turntable 1 is smaller than the outer turntable 2, and the length of the inner turntable 1 is the same as the length of the straight rods 201 of the outer turntable 2. The width is smaller than the diameter of the arc rods 202. The midpoint of the wide side of the inner turntable 1 coincides with the center of the arc rods 202. The inner turntable 1 and the outer turntable 2 are fixedly connected. A reinforcing rod 10 can be installed between the inner turntable 1 and the outer turntable 2 for reinforcement.

[0029] The aforementioned rotating disk 3 is provided in two ring-shaped structures. The rotating disk 3 is fixed at both ends of the inner rotating disk 1, and the center of the rotating disk 3 coincides with the center of the arc-shaped rod 202. A sprocket 4 is sleeved on the outer side of the rotating disk 3. The sprocket 4 is rotatably connected to the rotating disk 3 to form a bearing-type structure. The sprocket 4 can rotate around the rotating disk 3. A chain 5 is wound and meshed between the sprockets 4 at both ends of the inner rotating disk 1. The rotation of one sprocket 4 drives the rotation of the other sprocket 4, and the chain 5 moves at the same time.

[0030] The aforementioned sprocket 4 is driven by a concentric annular internal gear 6 fixed at the bottom of the sprocket 4. The rotation of the internal gear 6 can drive the sprocket 4 to rotate concentrically. The inner side of the internal gear 6 meshes with a small-diameter external gear 7. The external gear 7 is rotatably connected to the inner turntable 1 or the rotating disk 3. The external gear 7 is driven to rotate by the drive mechanism 8, which in turn drives the internal gear 6, the sprocket 4 and the chain 5 to move in sequence.

[0031] It should be noted that the specific connection methods between the tray mounted on the chain 5 and the inner turntable 1 and the outer turntable 2 and the tabletop are existing technologies and will not be described in detail here.

[0032] In a further embodiment, the drive mechanism 8 includes a drive motor 801 and a power supply 802. The power supply 802 and the drive motor 801 are both fixedly connected to the bottom of the inner turntable 1. The power supply 802 is electrically connected to the drive motor 801, and the output shaft of the drive motor 801 is connected to the external gear 7 for transmission.

[0033] The aforementioned drive motor 801 and power supply 802 are fixed at the bottom of the inner turntable 1. The output end of the drive motor 801 is connected to the shaft of the external gear 7 via a drive transmission. For example, a steering gear can be used to connect the motor shaft to the gear shaft. Other transmission methods can also be used, which will not be elaborated here. It is only necessary to ensure that the drive motor 801 drives the external gear 7 to rotate.

[0034] In a further embodiment, a groove 9 is provided at a position where the inner turntable 1 is parallel to the straight rod 201. The groove 9 is fixedly connected to the top of the inner turntable 1, and the chain 5 is placed in the groove 9.

[0035] By setting a groove 9 at the position corresponding to the straight rod 201 on the inner turntable 1, the chain 5 is placed in the groove 9 to limit the movement of the chain 5.

[0036] The internal gear 6 and the sprocket 4 are integrally formed.

[0037] Stability is improved by integrally molding the internal gear 6 with the sprocket 4.

[0038] A reinforcing rod 10 is provided between the straight rod 201 of the outer turntable 2 and the inner turntable 1, and the reinforcing rod 10 is fixedly connected to the outer turntable 2 and the inner turntable 1 respectively.

[0039] By setting up reinforcing rods 10, the strength of the inner turntable 1 and the outer turntable 2 can be improved.

[0040] The inner turntable 1 is provided with a support plate along its width direction, and the support plate is fixedly connected to the inner turntable 1.

[0041] The aforementioned support plate (not shown in the figure) is used to reinforce the inner turntable 1. The support plate is a square plate with both sides connected to the long side of the inner turntable 1.

[0042] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0043] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0044] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A bearing-type sprocket turntable for dining tables, characterized in that: It includes an inner turntable and an outer turntable. The outer turntable includes two straight rods of the same length, with semi-circular arc rods at both ends of the straight rods. The two straight rods are respectively connected to the two ends of the arc rods. The inner turntable is a rectangular frame with the same length as the straight rods. The inner turntable is fixedly connected to the outer turntable. Both ends of the inner turntable are fixedly connected to annular rotating disks. The rotating disks are concentrically arranged with the arc-shaped rods of the outer turntable. A sprocket is sleeved on the outer side of the rotating disk. A chain is sleeved and meshed between the two sprockets on the inner turntable. An annular internal gear is concentrically arranged at the bottom of the sprocket. An external gear is meshed on the inner side of the internal gear. The external gear is rotatably connected to the inner turntable. A drive mechanism is provided on one side of the external gear at one end of the inner turntable to drive the external gear to rotate. The inner and outer turntables are used to fix the desktop.

2. The bearing-type sprocket turntable according to claim 1, characterized in that: The drive mechanism includes a drive motor and a power supply. Both the power supply and the drive motor are fixedly connected to the bottom of the inner turntable. The power supply is electrically connected to the drive motor, and the output shaft of the drive motor is connected to an external gear transmission.

3. A bearing-type sprocket turntable for dining tables according to claim 1, characterized in that: A groove is provided at a position where the inner turntable is parallel to the straight rod. The groove is fixedly connected to the top of the inner turntable, and the chain is placed in the groove.

4. A bearing-type sprocket turntable for dining tables according to claim 1, characterized in that: The internal gear and sprocket are integrally formed.

5. A bearing-type sprocket turntable for dining tables according to claim 1, characterized in that: A reinforcing rod is provided between the straight rod of the outer turntable and the inner turntable, and the reinforcing rod is fixedly connected to the outer turntable and the inner turntable respectively.

6. A bearing-type sprocket turntable for dining tables according to claim 1, characterized in that: The inner turntable is provided with a support plate along its width direction, and the support plate is fixedly connected to the inner turntable.

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