Improved variable diameter dining table

Abstract

This utility model relates to the field of furniture manufacturing technology, and in particular to an improved dining table with variable diameter. The utility model includes supporting legs, a base plate, a circular tabletop, a fan-shaped tabletop, a clutch device, a folding device, and a push rod device. Through the structural design of the first and second fixing plates, the circular tabletop is connected to a double-ring structure. The inner and outer rings can rotate relative to each other. When the circular tabletop is rotated, the fan-shaped tabletop can be easily opened and closed via the folding fixing plates, ensuring stable rotation and preventing jamming. A lifting clutch push rod is provided; pushing it inward raises the pin seat, opening the clutch device. By rotating the circular tabletop left and right, the fan-shaped tabletop can be opened and closed, achieving the interchangeable function of increasing or decreasing size. When the push rod is pulled outward, the large tabletop can rotate left and right as a turntable; when the table is reduced in size, pulling it backward fixes the table ring.

Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing technology, and in particular to an improved dining table with variable diameter. Background Technology

[0002] When families eat together, there are usually about four people, and a fixed small round table is sufficient. However, when friends and relatives gather for meals, a large-diameter round table with a small turntable is needed. But large-diameter dining tables take up a lot of space, especially for urban residents, who find it very inconvenient to use due to limited living space.

[0003] Currently, there are also variable-diameter dining tables on the market, which can change from a small tabletop to a large tabletop. For example, the Chinese patent entitled "A Variable-Diameter Dining Table" (publication number CN110522171A) discloses a dining table whose structure includes a small tabletop (1), a fixed base plate (2), an even number of fan-shaped tabletops (3), and a folding device (4) for folding and unfolding the fan-shaped tabletops (3). The even number of fan-shaped tabletops (3) can be spliced ​​into a complete ring after unfolding. The small tabletop (1) is higher than the plane where the ring is located. The even number of fan-shaped tabletops (3) are installed on the fixed base plate (2) through the folding device (4). The feature is that: The fixed base plate (2) has a rotatable transmission component (5) at the center of its upper surface. The transmission component (5) is connected to the gathering device (4). The small table (1) is mounted on the transmission component (5) via a clutch device (6). When the clutch device (6) is closed, rotating the small table (1) can drive the transmission component (5) to rotate and control the gathering device (4) to gather or unfold the even number of fan-shaped table panels (3). When the clutch device (6) is disengaged, the small table (1) can rotate independently. The fixed base plate (2) is also provided with a control device (7) that can control the closing and disengagement of the clutch device (6). It can gather and open the small table, thereby turning the small table into a large table. However, when the small table is opened, it is inconvenient to use and often gets stuck, and the rotation is not smooth. Summary of the Invention

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide an improved variable-diameter dining table. Through the structural design of the first fixed plate and the second fixed plate, the circular tabletop is connected to the double ring structure. The inner ring and the outer ring can rotate relative to each other. A lifting clutch push rod is provided. When the push rod is pushed inward, the pin seat is raised, so that the clutch device is opened. By rotating the circular tabletop left and right, the fan-shaped tabletop can be opened and closed, realizing the interchangeable function of changing size.

[0005] The technical solution of this utility model to solve its technical problem is:

[0006] An improved variable-diameter dining table includes supporting legs, a base plate, a circular tabletop, a fan-shaped tabletop, a fixing frame, a clutch device, and a folding device. The base plate is fixedly connected to the supporting legs, the circular tabletop is connected to the center of the base plate, and the fan-shaped tabletop is connected to the base plate via the folding device. The folding device can fold and unfold the fan-shaped tabletop. The tabletop also includes a fixing device connected to the fixing frame, comprising a first fixing plate and a second fixing plate. The first fixing plate is connected to the fixing frame, and the second fixing plate is connected to the circular tabletop. The outer edge of the first fixing plate has several outward protrusions, and the inner edge of the second fixing plate has several inward protrusions corresponding to the outward protrusions. The inward protrusions are fixedly connected to the outward protrusions.

[0007] As an improvement of this utility model, it also includes a push rod device, which includes a lifting clutch push rod and a pin seat. The pin seat is hinged to the base plate and supports the clutch device. The lifting clutch push rod includes a shovel plate and a push rod connected to each other. The shovel plate can be inserted into the bottom of the pin seat.

[0008] As a further improvement of this utility model, the shovel plate includes a fixed section and shovel sections respectively connected to both sides of the fixed section, and the shovel sections are of the rear-high and front-low type.

[0009] As a further improvement of this utility model, the front end of the shovel segment is configured as an inclined surface.

[0010] As a further improvement of this utility model, the fixing device further includes a double ring structure, which includes an inner ring and an outer ring that are sleeved together, and the outer ring is connected to the first fixing plate; the fan-shaped desktop includes a plurality of desktop group, the folding device includes a folding fixing plate, the folding fixing plate is connected to the outer ring, and all the desktop groups are connected to the folding fixing plate.

[0011] As a further improvement of this utility model, the desktop panel assembly includes an upper fan-shaped plate and a lower fan-shaped plate arranged adjacent to each other. The folding device further includes a first connecting structure and a second connecting structure. The upper fan-shaped plate is connected to the folding fixing plate through the first connecting structure, and the lower fan-shaped plate is connected to the folding fixing plate through the second connecting structure. The first connecting structure includes a first fixing seat, a first slide rail, a first slider, and a first connecting rod. The first slide rail is connected to the base plate, the first slider is slidably connected to the first slide rail, and the first fixing seat is connected to the first slider. The upper fan-shaped plate is connected to the outer side of the first fixing seat, one end of the first connecting rod is connected to the inner side of the first fixing seat, and the other end of the first connecting rod is connected to the folding fixing plate. The second connecting structure includes a second fixing seat, a second slide rail, a second slider, and a second connecting rod. The second slide rail is connected to the base plate, the second slider is slidably connected to the second slide rail, and the second fixing seat is connected to the second slider. The lower fan-shaped plate is connected to the outer side of the second fixing seat, one end of the second connecting rod is connected to the inner side of the second fixing seat, and the other end of the second connecting rod is connected to the folding fixing plate.

[0012] As a further improvement of this utility model, both the first fixed base and the second fixed base are provided with a plurality of adjustment holes, and adjustment screws are connected to the adjustment holes.

[0013] As a further improvement of this utility model, the bottom of the first fixing base is provided with reinforcing ribs.

[0014] As a further improvement of this utility model, the inner ring is connected to the gear ring, the motor shaft is connected to a gear, and the gear meshes with the gear ring.

[0015] As a further improvement of this utility model, a mounting plate is provided on the lower sector plate, an adjusting plate is connected to the mounting plate, guide wheel plates are provided on both sides of the mounting plate, guide wheels are mounted on the guide wheel plates, and the guide wheels can roll on a support plate provided on the base plate, and the support plate is provided with an inclined surface.

[0016] This utility model has the following advantages:

[0017] 1. Through the structural design of the first and second fixing plates, the circular desktop board is connected to the double ring structure. The inner and outer rings can rotate relative to each other. When rotating the circular desktop board, the fan-shaped desktop board can be opened and closed well through the retractable fixing plate. The rotation is stable and not easy to jam.

[0018] 2. A lifting clutch push rod is provided. Pushing it inward raises the pin seat, opening the clutch. Rotating the circular tabletop opens the fan-shaped tabletop, making the small tabletop larger. To retract the fan-shaped tabletop, pull the lifting clutch push rod outward and rotate the circular tabletop in the opposite direction. Pushing the lifting clutch push rod outward resets the clutch, allowing the circular tabletop to rotate via a drive motor. The motor is a single large motor that directly drives the gears, rotating the gear ring and thus the circular tabletop.

[0019] 3. An adjustment hole is provided. By levering the principle, the adjustment screw is turned in the adjustment hole to make the annular surface formed by the unfolded fan-shaped desktop plate flush with the circular desktop plate. Specifically, the adjustment is first made by adjusting the screw in the adjustment hole on the first fixed seat and then locked to complete the adjustment. The second fixed seat is similar, so that the annular surface formed by the fan-shaped desktop plate is flush with the circular desktop plate. Attached Figure Description

[0020] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the unfolded internal structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the second fixing plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the second fixing plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the folding and fixing plate of this utility model;

[0026] Figure 6 This is a schematic diagram of the push rod device of this utility model. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the push rod device of this utility model. Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the first connection structure of this utility model;

[0029] Figure 9 This is a schematic diagram of the first fixing base of this utility model;

[0030] Figure 10 This is a schematic diagram of the second connection structure of this utility model;

[0031] Figure 11 This is a schematic diagram of the mounting plate of this utility model;

[0032] Figure 12 This is a front view of the mounting plate of this utility model;

[0033] Figure 13 This is a schematic diagram of the support plate of this utility model;

[0034] Figure 14 This is a schematic diagram of the adjusting plate of this utility model;

[0035] Reference numerals: 1-Supporting foot, 2-Base plate, 21-Fixing frame, 22-Folding fixing plate, 23-Circular tabletop, 3-Fixing device, 31-First fixing plate, 32-Second fixing plate, 4-Upper sector plate, 5-Lower sector plate, 6-Push rod device, 61-Lifting clutch push rod, 62-Pin seat, 63-Shovel plate, 64-Push rod, 65-Fixing section, 66-Shovel section, 7-First connecting structure, 71-First fixing seat, 72-First slide rail, 73-First slider, 74-First connecting rod, 75-Reinforcing rib, 8-Second connecting structure, 81-Second fixing seat, 82-Second slide rail, 83-Second slider, 84-Second connecting rod, 85-Adjusting plate, 86-Mounting plate, 87-Guide wheel plate, 88-Supporting plate, 9-Adjusting hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] This utility model discloses an improved variable-diameter dining table, which is an improvement on the dining table disclosed in Chinese Patent No. CN110522171A, entitled "A Variable-Diameter Dining Table". Currently, this dining table has the following drawbacks:

[0038] 1. When the small desktop is opened, it is inconvenient to use, and it cannot be opened in conjunction with the circular desktop panel.

[0039] 2. During installation, the operation is relatively troublesome. It is difficult to unfold the fan-shaped desktop panel to be flush with the round desktop panel. Moreover, even after it is flush, the fan-shaped desktop panel may become uneven with the round desktop panel after a long period of use.

[0040] 3. The round tabletop is prone to getting stuck when rotating, and the rotation is unstable, causing it to wobble from side to side.

[0041] To address these issues, improvements have been made to this invention, as detailed below:

[0042] like Figures 1 to 14 As shown, this utility model discloses an improved variable-diameter dining table, including a support leg 1, a base plate 2, a circular tabletop 23, a fan-shaped tabletop, a clutch device, and a folding device. The base plate 2 is fixedly connected to the support leg 1, the circular tabletop is connected to the center of the base plate 2, and the fan-shaped tabletop is connected to the base plate 2 through the folding device. The folding device can drive the fan-shaped tabletop to fold and unfold. The circular tabletop is connected to the clutch device. Its working principle is basically the same as that of the dining table disclosed in Chinese Patent No. CN110522171A, entitled "A Variable-Diameter Dining Table".

[0043] This utility model also includes a fixing device 3 connected to the fixing frame 21. The fixing device 3 includes a first fixing plate 31 and a second fixing plate 32. The first fixing plate 31 is connected to the fixing frame 21, and the second fixing plate 32 is connected to the circular desktop 23. The outer edge of the first fixing plate 31 is provided with a plurality of outward protrusions, and the inner edge of the second fixing plate is provided with a plurality of corresponding inner protrusions. The inner protrusions are fixedly connected to the outward protrusions. The outward protrusions are provided with threaded holes, which facilitates connection with the circular desktop 23, thereby fixing the circular desktop 23. The circular desktop 23 can be a wooden desktop or a rock slab. Specifically, the outer edge of the first fixing plate 31 is provided with six outward protrusions, and the inner edge of the second fixing plate 32 is provided with six corresponding inner protrusions. The inner protrusions are fixedly connected to the outward protrusions by bolts. The outward protrusions and inner protrusions are similar in shape.

[0044] In this utility model, the fixing device 3 also includes a double ring structure, which includes an inner ring and an outer ring that are sleeved together. The outer ring is connected to the first fixing plate 31. The fan-shaped tabletop includes several tabletop groups. The folding device includes a folding fixing plate 22, which is connected to the outer ring. All the tabletop groups are connected to the folding fixing plate 22.

[0045] In this invention, the inner ring is connected to the gear ring, and the motor shaft is connected to a gear. The gear meshes with the gear ring. When the lifting clutch push rod 61 is pushed outward, the clutch device is restored, and the circular desktop plate 23 can be rotated by driving the motor. Moreover, the motor is a single large motor that can directly drive the gear, drive the gear ring to rotate, and thus drive the circular desktop plate to rotate. Furthermore, an external remote control or button can be set to linearly or wirelessly control the operation of the motor.

[0046] This utility model adds a push rod device 6, which includes a lifting clutch push rod 61 and a pin seat 62. The pin seat 62 is hinged to the base plate 2 and supports the clutch device. The lifting clutch push rod 61 includes a connected shovel plate 63 and a push rod 64. The shovel plate 63 can be inserted into the bottom of the pin seat 62. Specifically, when the lifting clutch push rod 61 is pushed inward, the pin seat 62 is raised, and the pin on the pin seat 62 can be inserted into the round hole in the first fixed plate 31, so that the pin seat 62 is connected to the first fixed plate 31, that is, the clutch device is opened. Rotating the circular tabletop can open the fan-shaped tabletop, allowing the small The desktop can be enlarged; when it needs to be folded up, the circular desktop panel can be rotated in the opposite direction to retract the fan-shaped desktop panel. The fan-shaped desktop panel can be folded up and folded up by rotating the circular desktop panel left and right, thus realizing the interchangeable function of enlarging and shrinking. Its operation is more convenient, more practical, and its structure is more reasonable. The end of the shovel plate 66 is equipped with a pull rope for easy pulling out. Pulling the pull rope can lower the pin seat 62, that is, the pin seat 62 falls due to gravity, and the pin on it slides out from the round hole in the first fixed plate 31. The first fixed plate 31 can rotate freely, realizing its turntable function.

[0047] To improve operation, this utility model provides a specific embodiment of the lifting and lowering push rod 61. The shovel plate 63 includes a fixed section 65 and shovel sections 66 connected to both sides of the fixed section 65. The shovel sections 66 are high at the back and low at the front. The front end of the shovel section 66 is set as a slope. The two shovel sections 66 are connected to both sides of the fixed section 65. The shovel sections 66 and the fixed section 65 also form a groove. The front end of the shovel section 66 is sloped and pointed, which facilitates insertion into the bottom of the pin seat 62. Moreover, the end of the shovel plate 63 is provided with a pull rope. When it is necessary to pull outward, simply pull the pull rope to pull outward, which is convenient to operate.

[0048] In this utility model, a connecting structure is designed to better fold and open the fan-shaped desktop panel. Specifically, the desktop panel assembly includes an upper fan-shaped panel 4 and a lower fan-shaped panel 5 arranged adjacent to each other. The folding device includes a first connecting structure 7 and a second connecting structure 8. The upper fan-shaped panel 4 is connected to the folding fixing plate 24 through the first connecting structure 4, and the lower fan-shaped panel 5 is connected to the folding fixing plate 24 through the second connecting structure 8.

[0049] In this utility model, the specific structure of the first connecting structure 7 is as follows: it includes a first fixed seat 71, a first slide rail 72, a first slider 73, and a first connecting rod 74. The first slide rail 72 is connected to the base plate 2, the first slider 73 is slidably connected to the first slide rail 72, the first fixed seat 71 is connected to the first slider 73, the upper sector plate 4 is connected to the outer side of the first fixed seat 71, one end of the first connecting rod 74 is connected to the inner side of the first fixed seat 71, and the other end of the first connecting rod 74 is connected to the retractable fixing plate 24; when the retractable fixing plate 24 rotates, the upper sector plate 4 can be opened or retracted.

[0050] In this utility model, the specific structure of the second connecting structure 8 is as follows: it includes a second fixed seat 81, a second slide rail 82, a second slider 83, and a second connecting rod 84. The second slide rail 82 is connected to the base plate 2, the second slider 83 is slidably connected to the second slide rail 82, the second fixed seat 81 is connected to the second slider 83, the lower sector plate 5 is connected to the outer side of the second fixed seat 81, one end of the second connecting rod 84 is connected to the inner side of the second fixed seat 81, and the other end of the second connecting rod 84 is connected to the folding fixed plate 24. When the folding fixed plate 24 rotates, the lower sector plate 5 can be opened or folded.

[0051] In this utility model, both the first fixed base 71 and the second fixed base 81 can be equipped with casters, thereby facilitating forward and backward movement.

[0052] In this utility model, the bending degree of the first connecting rod 74 is less than that of the second connecting rod 84. This design allows the upper sector plate 4 and the lower sector plate 5 to be folded together using the upper and lower structure. It also makes it convenient to open the upper sector plate 4 and the lower sector plate 5 so that they overlap and flatten together.

[0053] In this invention, to better align the circular desktop panel with the opened fan-shaped desktop panel, both the first fixing base 71 and the second fixing base 81 are provided with several adjustment holes 9. Adjustment screws are connected to the adjustment holes 9. Utilizing the lever principle, during installation, turning the adjustment screws adjusts the center of gravity of the fan-shaped desktop panel, thereby better aligning the circular desktop panel with the opened fan-shaped desktop panel. Furthermore, after prolonged use, if the circular desktop panel and the opened fan-shaped desktop panel become uneven, the adjustment screws can be turned to align them, thus increasing its service life and improving the user experience. Specifically, the adjustment is first made by adjusting the adjustment screws in the adjustment holes 9 on the first fixing base 71 before locking it in place, thus completing the adjustment. The second fixing base 81 is similar, ensuring that the annular surface formed by the fan-shaped desktop panel is flush with the circular desktop panel.

[0054] In this utility model, the bottom of the first fixing seat 71 is provided with a reinforcing rib, so that the first fixing seat 71 is not easy to tilt downward.

[0055] In this utility model, a mounting plate 86 is provided on the lower sector plate 5, and an adjusting plate 85 is connected to the mounting plate 86. Guide wheel plates 87 are provided on both sides of the mounting plate 86, and guide wheels are installed on the guide wheel plates 87. The guide wheels can roll on the support plate 88 provided on the base plate 2. The support plate 88 is provided with an inclined surface. When the lower sector plate 5 is unfolded, the mounting plate 86 extends outward, and the guide wheels roll on the base plate 2 to the inclined surface of the support plate 88, so that the lower sector plate 5 is flush with the upper sector plate 4, and then flush with the circular tabletop 23.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modified variable-diameter dining table, comprising support legs, a bottom plate, a circular tabletop plate, a fan-shaped tabletop plate, a fixing frame, a clutching device and a folding device, the bottom plate being fixedly connected to the support legs, the circular tabletop plate being connected at the center of the bottom plate, the fan-shaped tabletop plate being connected to the bottom plate through the folding device, the folding device being capable of driving the fan-shaped tabletop plate to fold and unfold, characterized in that, It also includes a fixing device connected to the fixing frame. The fixing device includes a first fixing plate and a second fixing plate. The first fixing plate is connected to the fixing frame, and the second fixing plate is connected to the circular desktop. The outer edge of the first fixing plate is provided with a plurality of outward protrusions, and the inner edge of the second fixing plate is provided with a plurality of inward protrusions corresponding to the outward protrusions. The inward protrusions are fixedly connected to the outward protrusions.

2. The improved variable diameter dining table as claimed in claim 1, wherein, It also includes a push rod device, which includes a lifting clutch push rod and a pin seat. The pin seat is hinged to the base plate and supports the clutch device. The lifting clutch push rod includes a connected shovel plate and a push rod. The shovel plate can be inserted into the bottom of the pin seat.

3. The improved variable diameter dining table as claimed in claim 2, wherein, The shovel plate includes a fixed section and shovel sections connected to both sides of the fixed section, and the shovel sections are of a shape that is higher at the back and lower at the front.

4. The improved variable diameter dining table as claimed in claim 3, wherein, The front end of the shovel section is set as an inclined surface.

5. A variable diameter improved dining table as claimed in claim 1 or 2 or 3 or 4, wherein The fixing device further includes a double-ring structure, which includes an inner ring and an outer ring that are sleeved together, and the outer ring is connected to the first fixing plate; the fan-shaped desktop includes a plurality of desktop assembly groups, the folding device includes a folding fixing plate, which is connected to the outer ring, and all the desktop assembly groups are connected to the folding fixing plate.

6. The improved variable diameter dining table as claimed in claim 5, wherein, The desktop panel assembly includes an upper fan-shaped panel and a lower fan-shaped panel arranged adjacent to each other. The folding device further includes a first connecting structure and a second connecting structure. The upper fan-shaped panel is connected to the folding fixing plate through the first connecting structure, and the lower fan-shaped panel is connected to the folding fixing plate through the second connecting structure. The first connecting structure includes a first fixing seat, a first slide rail, a first slider, and a first connecting rod. The first slide rail is connected to the base plate, the first slider is slidably connected to the first slide rail, the first fixing seat is connected to the first slider, the upper fan-shaped panel is connected to the outer side of the first fixing seat, one end of the first connecting rod is connected to the inner side of the first fixing seat, and the other end of the first connecting rod is connected to the folding fixing plate. The second connecting structure includes a second fixed seat, a second slide rail, a second slider, and a second connecting rod. The second slide rail is connected to the base plate, the second slider is slidably connected to the second slide rail, the second fixed seat is connected to the second slider, the lower sector plate is connected to the outer side of the second fixed seat, one end of the second connecting rod is connected to the inner side of the second fixed seat, and the other end of the second connecting rod is connected to the folding fixed plate.

7. The improved variable diameter dining table as claimed in claim 6, wherein, Both the first and second fixed bases are provided with a number of adjustment holes, and adjustment screws are connected to the adjustment holes.

8. The improved variable diameter dining table as claimed in claim 7, wherein, The bottom of the first fixing base is provided with reinforcing ribs.

9. The improved variable diameter dining table as claimed in claim 8, wherein, The inner ring is connected to the gear ring, and the motor shaft is connected to a gear, which meshes with the gear ring.

10. The improved variable diameter dining table as claimed in claim 6, wherein, An mounting plate is provided on the lower sector plate, and an adjustment plate is connected to the mounting plate. Guide wheel plates are provided on both sides of the mounting plate, and guide wheels are mounted on the guide wheel plates. The guide wheels can roll on a support plate provided on the base plate, and the support plate is provided with an inclined surface.

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