Multifunctional lifting type round table

Abstract

The utility model discloses a multifunctional lifting type round table, which belongs to the field of lifting type round tables and comprises a base, a round table plate and a lifting mechanism, an adjusting hand wheel is rotated to drive a driving gear to rotate through a first rotating rod, and after the driving gear drives a driven gear to rotate under the action of rotary meshing, the driven gear is driven to rotate. A driven gear drives a threaded rod to rotate through a second rotating rod, a lifting cylinder is moved out of the interior of a supporting cylinder upwards along the threaded rod through a nut, a round table plate is jacked upwards, and therefore the purpose that the use height of the round table can be adjusted in a lifting mode conveniently is achieved, and the height of the round table is adjusted by adopting the unpowered lifting structure. According to the round table, the problems occurring when the round table is adjusted in an existing electric force, pneumatic force or unpowered mode can be avoided, operation is easy and convenient, convenience is brought to lifting adjustment operation of the round table, and the round table can be used as a tea table round table by reducing the height of the round table when used by a user; the round table can be used as a card playing round table and the like by being heightened.

Description

Technical Field

[0001] This utility model relates to the field of height-adjustable round tables, and in particular to a multifunctional height-adjustable round table. Background Technology

[0002] A round table is a type of furniture, typically consisting of a round tabletop and legs supporting it. The defining design feature of a round table is its circular tabletop, a shape without sharp edges, giving it a soft and inclusive visual appeal. Round tables come in various sizes to suit different occasions and needs. They can be small for family gatherings or study rooms, or large for conference rooms, banquet halls, and other settings to accommodate more people. Beyond its practicality, the round table carries rich cultural connotations, symbolizing equality, unity, and inclusivity, as those seated around it can communicate face-to-face without distinction of status or social standing. In modern home and office environments, the round table is highly favored for its unique charm and practicality.

[0003] In the existing technology, a height-adjustable round table is a round table with height adjustment function. It usually achieves free adjustment of the tabletop height through a built-in lifting mechanism, which is generally divided into electric power, pneumatic power or non-powered method.

[0004] However, in actual use, this height-adjustable round table has a relatively simple function, only having the function of height adjustment. Due to the lack of protective function, and the smooth and flat surface of the round table, items on the tabletop are prone to sliding and tipping over and rolling off the tabletop to fall to the ground and be broken. It is difficult to protect items on the tabletop.

[0005] Meanwhile, the lifting and lowering of electrically operated round tables is relatively complex and requires electricity, making it difficult to adjust the height and use once the power supply is lost. This also causes inconvenience when using the round table outdoors, reducing its applicability. Pneumatically operated round tables require an empty seat when raised and a load when lowered, making the operation cumbersome. While non-powered lifting round tables do not face the problems associated with electrically or pneumatically operated round tables, most of the non-powered lifting round tables on the market currently use pin hole or spring limit mechanisms for height adjustment. When adjusting, the round table must be raised to the desired height and then the limit mechanism is used to stop the height adjustment, which still causes inconvenience and reduces the applicability and practicality of the round table. Utility Model Content

[0006] The main purpose of this utility model is to provide a multifunctional height-adjustable round table, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A multifunctional height-adjustable round table includes a base and a round tabletop. A height-adjusting mechanism is provided between the base and the round tabletop. The height-adjusting mechanism includes a mechanism housing, a support cylinder, a drive gear, a driven gear, a threaded rod, and a lifting cylinder. The mechanism housing is fixedly connected to the top surface of the base, and the support cylinder is fixedly connected to the top surface of the mechanism housing. The drive gear and the driven gear are movably connected to the mechanism housing and mesh with each other through a first rotating rod and a second rotating rod on the top surface, respectively. The threaded rod is fixedly connected to the top end of the second rotating rod. The lifting cylinder is movably connected to the inside of the support cylinder through a first guide block at the bottom end of the outer wall, and the lifting cylinder is also movably connected to the threaded rod through a nut inside the cylinder. The round tabletop is fixedly connected to the top end of the lifting cylinder. A protective mechanism is also provided at the outer top end of the lifting cylinder. The protective mechanism includes an adjusting knob, a movable ring, and a retaining ring. The adjusting knob and the movable ring are respectively sleeved on the outside of the lifting cylinder, and the adjusting knob is movably connected to the movable ring through a rotating convex ring on the top surface. The retaining ring is sleeved on the outside of the round tabletop and is fixedly connected to the movable ring through a connecting plate.

[0009] As a further description of the above technical solution, the mechanism housing is fixedly installed on the top surface of the base, and a first rotating hole is provided on the right side of the top surface of the mechanism housing, and a second rotating hole is provided on the left side of the top surface of the mechanism housing. A support cylinder is also fixedly installed on the top surface of the mechanism housing above the second rotating hole, and a set of symmetrical vertical first guide grooves are provided on the inner wall of the support cylinder.

[0010] As a further description of the above technical solution, a first rotating rod is fixedly installed on the top surface of the drive gear, and the first rotating rod is movably installed in the first rotating hole. An adjusting handwheel is also fixedly installed on the top end of the first rotating rod.

[0011] As a further description of the above technical solution, a second rotating rod is fixedly installed on the top surface of the driven gear, and the second rotating rod is movably installed in the second rotating hole. A threaded rod is fixedly installed at the top end of the second rotating rod. The lifting cylinder is inserted and installed in the support cylinder, and a set of symmetrical first guide blocks are fixedly installed at the bottom end of the outer wall of the lifting cylinder and movably installed in the first guide groove. A nut is also fixedly installed at the bottom end of the inner cylinder of the lifting cylinder, and the nut is threadedly connected to the threaded rod.

[0012] As a further description of the above technical solution, an external thread is provided on the upper part of the outer wall of the lifting cylinder, and a set of symmetrical second guide grooves are also provided on the upper part of the outer wall of the lifting cylinder.

[0013] As a further description of the above technical solution, the adjusting knob is annular, and an internal thread that connects with the external thread is formed on the inner wall of the annular knob. An inverted rotating convex ring is fixedly installed on the top surface of the adjusting knob. A set of symmetrical second guide blocks is fixedly installed on the inner wall of the annular ring of the movable ring, and the second guide blocks are movably installed in the second guide groove. An inverted rotating convex groove is formed on the bottom surface of the movable ring, and the rotating convex ring is movably installed in the rotating convex groove. The retaining ring is fitted on the outer wall of the round table, and a set of symmetrical connecting plates is fixedly installed between the retaining ring and the inner wall and the outer wall of the movable ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the lifting mechanism involves rotating the adjustment handwheel, which drives the drive gear to rotate via the first rotating rod. The drive gear, through its meshing action, drives the driven gear to rotate, which in turn drives the threaded rod via the second rotating rod. This causes the lifting cylinder to move upwards from the support cylinder via the nut along the threaded rod, lifting the round table upwards. This facilitates height adjustment of the round table. This non-powered lifting structure avoids the problems associated with existing electric, pneumatic, or non-powered methods of table height adjustment. The operation is simple and convenient, making table height adjustment easier. Users can lower the table to use it as a coffee table or similar device, or raise it to use it as a card game table.

[0016] In conjunction with the protective mechanism, rotating the adjustment knob upwards along the external thread via the internal thread pushes the movable ring upwards through the rotating convex ring. This movable ring moves along the second guide groove via the second guide block, and during the movement, it pushes the retaining ring upwards through the connecting plate, causing the retaining ring to rise from the edge of the round table. This retaining ring acts as a side guard at the edge of the round table, thus giving the round table a protective function during use. This expands the round table's functionality beyond its basic purpose, preventing items placed on the table from rolling and falling and breaking. It not only improves the round table's applicability and practicality but also realizes its multi-functional use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the housing of this utility model;

[0020] Figure 4 This is a structural breakdown diagram of the lifting mechanism of this utility model;

[0021] Figure 5 This is a structural breakdown diagram of the protective mechanism of this utility model;

[0022] Figure 6 For the present utility model Figure 5 Enlarged cross-sectional view of the structure at point A.

[0023] In the diagram: 1. Base; 2. Round tabletop; 3. Lifting mechanism; 4. Protective mechanism; 5. Mechanism housing; 6. First rotating hole; 7. Second rotating hole; 8. Support cylinder; 9. First guide groove; 10. Drive gear; 11. First rotating rod; 12. Adjusting handwheel; 13. Driven gear; 14. Second rotating rod; 15. Threaded rod; 16. Lifting cylinder; 17. First guide block; 18. Nut; 19. External thread; 20. Second guide groove; 21. Adjusting knob; 22. Internal thread; 23. Rotating convex ring; 24. Movable ring; 25. Second guide block; 26. Rotating convex groove; 27. Connecting plate; 28. Retaining ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 - Figure 6As shown, a multifunctional height-adjustable round table includes a base 1 and a round tabletop 2. A height-adjusting mechanism 3 is provided between the base 1 and the round tabletop 2. The height-adjusting mechanism 3 includes a mechanism housing 5, a support cylinder 8, a drive gear 10, a driven gear 13, a threaded rod 15, and a height-adjusting cylinder 16. The mechanism housing 5 is fixedly connected to the top surface of the base 1, and the support cylinder 8 is fixedly connected to the top surface of the mechanism housing 5. The drive gear 10 and the driven gear 13 are movably connected to the mechanism housing 5 and mesh with each other through a first rotating rod 11 and a second rotating rod 14 on the top surface, respectively. The threaded rod 15 is fixedly connected to the top end of the second rotating rod 14. The height-adjusting cylinder 16... 6 is movably connected to the inside of the support cylinder 8 via the first guide block 17 at the bottom of the outer wall, and the lifting cylinder 16 is also movably connected to the threaded rod 15 via the nut 18 inside the cylinder. The round table plate 2 is fixedly connected to the top of the lifting cylinder 16. The outer top of the lifting cylinder 16 is also provided with a protective mechanism 4, and the protective mechanism 4 includes an adjusting knob 21, a movable ring 24 and a retaining ring 28. The adjusting knob 21 and the movable ring 24 are respectively sleeved on the outside of the lifting cylinder 16, and the adjusting knob 21 is movably connected to the movable ring 24 via the rotating convex ring 23 on the top surface. The retaining ring 28 is sleeved on the outside of the round table plate 2 and is fixedly connected to the movable ring 24 via the connecting plate 27.

[0026] like Figure 3 and Figure 4 As shown, the mechanism housing 5 is fixedly installed on the top surface of the base 1, and a first rotating hole 6 is opened on the right side of the top surface of the mechanism housing 5, and a second rotating hole 7 is opened on the left side of the top surface of the mechanism housing 5. A support cylinder 8 is also fixedly installed on the top surface of the mechanism housing 5 above the second rotating hole 7. A set of symmetrical vertical first guide grooves 9 are opened on the inner wall of the support cylinder 8. A first rotating rod 11 is fixedly installed on the top surface of the drive gear 10, and the first rotating rod 11 is movably installed in the first rotating hole 6. An adjusting handwheel 12 is also fixedly installed at the top of the first rotating rod 11. A second rotating rod 14 is fixedly installed on the top surface of the driven gear 13, and the second rotating rod 14 is movably installed in the second rotating hole 7. A threaded rod 15 is fixedly installed at the top of the second rotating rod 14. A lifting cylinder 16 is inserted and installed in the support cylinder 8. A set of symmetrical first guide blocks 17 are fixedly installed at the bottom of the outer wall of the lifting cylinder 16 and movably installed in the first guide groove 9. A nut 18 is also fixedly installed at the bottom of the inner wall of the lifting cylinder 16, and the nut 18 is threadedly connected to the threaded rod 15.

[0027] The specific operating principle of the lifting mechanism 3 in conjunction with the round table is as follows:

[0028] When the height of the round table tray 2 needs to be adjusted, the user can manually rotate the adjustment handwheel 12 located on the right side of the mechanism housing 5 mounted on the top surface of the base 1. The adjustment handwheel 12 will drive the first rotating rod 11 on the top surface of the drive gear 10 to rotate within the first rotating hole 6 on the right side of the top surface of the mechanism housing 5. This causes the first rotating rod 11 to drive the drive gear 10 to rotate within the mechanism housing 5. During the rotation, the drive gear 10 meshes with the driven gear 13 within the mechanism housing 5, causing the drive gear 10 to drive the driven gear 13 to rotate. The second rotating rod 14 on the top surface of the driven gear 13 will rotate within the second rotating hole 7 on the left side of the top surface of the mechanism housing 5. The second rotating rod 14 will drive the threaded rod 15 to rotate, causing the lifting cylinder 16 to rise upwards along the threaded rod 15 through the nut 18 at the bottom of the cylinder. The lifting cylinder 16 moves upward, and the first guide block 17 at the bottom of the outer wall of the lifting cylinder 16 slides in the first guide groove 9 opened on the inner wall of the support cylinder 8. As the lifting cylinder 16 moves upward from the inside of the support cylinder 8, the round table plate 2 installed at the top is lifted upward until the round table plate 2 is adjusted to a suitable height. Then, the adjustment handwheel 12 is turned off, thereby achieving the purpose of conveniently adjusting the height of the round table. The use of this non-powered lifting structure to adjust the height of the round table can avoid the problems that occur when adjusting the round table by electric power, pneumatic power or non-powered methods. The operation is simple and convenient, and it brings convenience to the lifting and adjusting operation of the round table. When using it, the user can use it as a coffee table or other table by lowering the height of the round table, and use it as a card table or other table by raising the height of the round table.

[0029] like Figure 5 and Figure 6 As shown, an external thread 19 is provided on the upper part of the outer wall of the lifting cylinder 16, and a set of symmetrical second guide grooves 20 are also provided on the upper part of the outer wall of the lifting cylinder 16. The adjusting knob 21 is annular, and an internal thread 22 that is threadedly connected to the external thread 19 is provided on the inner wall of the annular knob 21. An inverted rotating convex ring 23 is fixedly installed on the top surface of the adjusting knob 21. A set of symmetrical second guide blocks 25 is fixedly installed on the inner wall of the annular ring 24, and the second guide blocks 25 are movably installed in the second guide groove 20. An inverted rotating convex groove 26 is provided on the bottom surface of the moving ring 24, and the rotating convex ring 23 is movably installed in the rotating convex groove 26. The retaining ring 28 is fitted on the outer wall of the round table plate 2, and a set of symmetrical connecting plates 27 are fixedly installed between the retaining ring 28 and the inner wall and the outer wall of the moving ring 24.

[0030] The protective mechanism 4, in conjunction with the round table, operates on the following principle:

[0031] After the round table is adjusted by the lifting mechanism 3, the adjustment knob 21 located above the outer wall of the lifting cylinder 16 can be rotated. The adjustment knob 21 will rotate and move upward along the external thread 19 opened above the outer wall of the lifting cylinder 16 via the internal thread 22. The adjustment knob 21 will also drive the rotating convex ring 23 installed on the top surface to rotate within the rotating convex groove 26 opened on the bottom surface of the movable ring 24. The rotating convex ring 23 will push the movable ring 24 upward, causing the connecting rod 24 to move along the second guide groove 20 opened above the outer wall of the lifting cylinder 16 at the external thread 19 via the second guide block 25 installed on the inner wall of the ring. The guide block 25 will slide within the second guide groove 20, while the movable ring 24 will push the retaining ring 28 upward through the connecting plate 27 connected to the retaining ring 28, causing the retaining ring 28 to rise up on the outer edge of the round table plate 2 until the adjusting knob 21 can no longer be turned. The retaining ring 28 blocks the edge of the round table plate 2, preventing items on the round table plate 2 from falling to the ground and being broken due to shaking and tilting during use. This gives the round table a protective function during use, making the round table no longer single-function. It not only improves the applicability and practicality of the round table, but also realizes the multi-functional use of the round table.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 multifunctional height-adjustable round table, comprising a base (1) and a round tabletop (2), characterized in that: A lifting mechanism (3) is provided between the base (1) and the round table (2), and the lifting mechanism (3) includes a mechanism housing (5), a support cylinder (8), a drive gear (10), a driven gear (13), a threaded rod (15), and a lifting cylinder (16). The mechanism housing (5) is fixedly connected to the top surface of the base (1), and the support cylinder (8) is fixedly connected to the top surface of the mechanism housing (5). The drive gear (10) and the driven gear (13) are movably connected to the mechanism housing (5) and mesh with each other through the first rotating rod (11) and the second rotating rod (14) on the top surface, respectively. The threaded rod (15) is fixedly connected to the top end of the second rotating rod (14). The lifting cylinder (16) is connected to the top end of the outer wall through the first guide block (14). 17) The lifting cylinder (16) is movably connected inside the support cylinder (8), and the lifting cylinder (16) is also movably connected to the threaded rod (15) through the nut (18) inside the cylinder. The round table plate (2) is fixedly connected to the top of the lifting cylinder (16). The top of the outer end of the lifting cylinder (16) is also provided with a protective mechanism (4). The protective mechanism (4) includes an adjustment knob (21), a movable ring (24) and a retaining ring (28). The adjustment knob (21) and the movable ring (24) are respectively sleeved on the outside of the lifting cylinder (16). The adjustment knob (21) is movably connected to the movable ring (24) through the rotating convex ring (23) on the top surface. The retaining ring (28) is sleeved on the outside of the round table plate (2) and is fixedly connected to the movable ring (24) through the connecting plate (27).

2. The multifunctional height-adjustable round table according to claim 1, characterized in that: The housing (5) of the mechanism is fixedly installed on the top surface of the base (1), and a first rotating hole (6) is provided on the right side of the top surface of the housing (5), a second rotating hole (7) is provided on the left side of the top surface of the housing (5), and a support cylinder (8) is fixedly installed on the top surface of the housing (5) above the second rotating hole (7), and a set of symmetrical vertical first guide grooves (9) are provided on the inner wall of the support cylinder (8).

3. A multifunctional height-adjustable round table according to claim 2, characterized in that: The top surface of the drive gear (10) is fixedly mounted with a first rotating rod (11), and the first rotating rod (11) is movably mounted in the first rotating hole (6). An adjusting handwheel (12) is also fixedly mounted on the top of the first rotating rod (11).

4. A multifunctional height-adjustable round table according to claim 3, characterized in that: The driven gear (13) has a second rotating rod (14) fixedly installed on its top surface, and the second rotating rod (14) is movably installed in the second rotating hole (7). The top end of the second rotating rod (14) is fixedly installed with a threaded rod (15). The lifting cylinder (16) is inserted into the support cylinder (8), and a set of symmetrical first guide blocks (17) is fixedly installed on the bottom of the outer wall of the lifting cylinder (16) and movably installed in the first guide groove (9). The bottom end of the inner cylinder of the lifting cylinder (16) is also fixedly installed with a nut (18), and the nut (18) is threadedly connected to the threaded rod (15).

5. A multi-functional height-adjustable round table according to claim 4, characterized in that: The upper part of the outer wall of the lifting cylinder (16) is provided with an external thread (19), and a set of symmetrical second guide grooves (20) are also provided on the upper part of the outer wall of the lifting cylinder (16).

6. A multifunctional height-adjustable round table according to claim 5, characterized in that: The adjustment knob (21) is ring-shaped, and an internal thread (22) is opened on the inner wall of the ring of the adjustment knob (21) to be threadedly connected to the external thread (19). An inverted rotating convex ring (23) is fixedly installed on the top surface of the adjustment knob (21). A set of symmetrical second guide blocks (25) is fixedly installed on the inner wall of the ring of the movable ring (24), and the second guide blocks (25) are movably installed in the second guide groove (20). An inverted rotating convex groove (26) is opened on the bottom surface of the movable ring (24), and the rotating convex ring (23) is movably installed in the rotating convex groove (26). The retaining ring (28) is fitted on the outer wall of the round table plate (2), and a set of symmetrical connecting plates (27) is fixedly installed between the retaining ring (28) and the inner wall and the outer wall of the movable ring (24).

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