Furniture lifting mechanism

Abstract

The utility model provides a furniture lifting mechanism, including one fixed link, one movable link and one lifting module, be provided with one threaded portion in fixed link, movable link can be along the vertical direction and be connected to the upper edge of fixed link along the vertical direction, lifting module includes one gear holder, one first gear, one second gear and one screw, gear holder is connected to movable link and is provided with one containing portion, gear holder is provided with one side hole along the horizontal direction and is provided with one bottom hole along the vertical direction, first gear is arranged in containing portion and both ends are inserted in side hole, second gear is arranged in containing portion and engages first gear, screw is screwed on threaded portion and is inserted in bottom hole and can be synchronously rotatably connected to second gear, and the lifting mechanism can complete the lifting function by the above structure with few elements.

Description

Technical Field

[0001] This utility model relates to a lifting mechanism, and more particularly to a furniture lifting mechanism that can provide lifting functions for tables and chairs. Background Technology

[0002] Please refer to Taiwan Patent No. TWM579484, "Table Height Adjustment Module," which describes a table height adjustment module. The module includes a body, which is integrally formed and block-shaped. It has a base portion at the bottom and a circumferential seat portion extending upwards from the base portion onto a ring surface. The interior is hollow, forming a module configuration space. This module configuration space includes a transmission element positioning area that extends transversely through the circumferential seat portion, and a driven element positioning area that is angularly aligned with the transmission element positioning area and extends longitudinally through the base portion. A transmission element assembly is located in the transmission element positioning area of ​​the body. A transmission element assembly is located inside the main body and includes a transmission gear. A drive groove is located outside the main body and can rotate the transmission gear. A driven element assembly is located in the driven element positioning area of ​​the main body. The driven element assembly is located inside the main body and includes a driven gear that meshes with the transmission gear. A lead screw is located outside the main body and consists of a lead screw assembly, a lead screw accessory, and a corresponding sleeve. This allows the drive groove of the transmission element assembly to rotate in both directions to drive the transmission gear, which in turn drives the driven gear and its lead screw. However, the aforementioned lifting and adjusting module must consist of a large number of components to operate and complete the lifting function. Utility Model Content

[0003] The main purpose of this utility model is to provide a furniture lifting mechanism.

[0004] This utility model provides a furniture lifting mechanism, which includes at least one fixed rod, at least one movable rod, and a lifting module. The fixed rod has a threaded portion, and the movable rod is vertically movable and connected to the upper edge of the fixed rod. The lifting module includes at least one gear seat, at least one first gear, at least one second gear, and at least one screw. The gear seat is connected to the movable rod and has a receiving portion. The gear seat has a side hole that extends horizontally through the receiving portion and a bottom hole that extends vertically through the receiving portion. The first gear is disposed in the receiving portion and its two ends are inserted into the side hole. The second gear is disposed in the receiving portion and meshes with the first gear. The screw is screwed into the threaded portion and inserted into the bottom hole and is synchronously rotatably connected to the second gear. This lifting mechanism can complete the lifting function with a small number of components.

[0005] The movable rod has a hollow structure. The gear seat is disposed on the movable rod and fixed to the inner periphery of the movable rod. The two ends of the first gear, which are opposite to each other along its axial direction, abut against the inner periphery of the movable rod.

[0006] The first gear has a through drive hole, and the lifting module includes a rocker arm that is located outside the movable rod. One end of the rocker arm has a drive part that can be detachably inserted into the drive hole.

[0007] The lifting mechanism includes two fixed rods and two movable rods. The lifting module includes two gear seats, two first gears, two second gears, and two screws. The two gear seats are respectively connected to the two movable rods. The two first gears, two second gears, and two screws are respectively assembled on the two gear seats, and the two gear seats are respectively connected to the two fixed rods. The lifting module includes a connecting rod, which is located between the two movable rods. The crank is located on the outside of the two movable rods. Each end of the connecting rod is provided with a connecting part, and the two connecting parts are respectively inserted into the drive hole.

[0008] The lifting module includes a plug, and the rocker arm and the plug are respectively located on opposite sides of the two movable rods and respectively connected to the two first gears. One end of the plug is provided with a plug portion, which can be detachably plugged into the drive hole.

[0009] The lifting mechanism of this utility model can complete the lifting function with a small number of components through the above structure. Attached Figure Description

[0010] Figure 1 This is a three-dimensional view of the furniture lifting mechanism of this utility model.

[0011] Figure 2 This is an exploded perspective view of the gear seat of the furniture lifting mechanism of this utility model.

[0012] Figure 3 This is an exploded perspective view of the other gear seat of the furniture lifting mechanism of this utility model.

[0013] Figure 4 This is a cross-sectional structural diagram of the gear seat of the furniture lifting mechanism of this utility model.

[0014] Figure 5 This is a cross-sectional view of the other gear seat of the furniture lifting mechanism of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 10-Lifting mechanism; 20-Fixed rod; 21-Threaded part; 30-Moving rod; 40-Lifting module; 41-Gear seat; 411-Accommodation part; 412-Side hole; 413-Bottom hole; 42-First gear; 421-Drive hole; 43-Second gear; 44-Screw; 45-Crank handle; 451-Drive part; 46-Linking rod; 461-Linking part; 47-Plug; 471-Insertion part. Detailed Implementation

[0016] Please refer to Figures 1 to 5 The figures shown are a perspective view, an exploded perspective view, and a cross-sectional view of the furniture lifting mechanism of this utility model. This utility model provides a lifting mechanism 10, including at least one fixed rod 20, at least one movable rod 30, and a lifting module 40; wherein:

[0017] The fixing rod 20 has a threaded part 21 inside.

[0018] The movable rod 30 is vertically movable and connected to the upper vertical edge of the fixed rod 20.

[0019] The lifting module 40 includes at least one gear seat 41, at least one first gear 42, at least one second gear 43, and at least one screw 44. The gear seat 41 is connected to the movable rod 30 and has a receiving portion 411. The gear seat 41 has a side hole 412 that communicates with the receiving portion 411 in the horizontal direction and a bottom hole 413 that communicates with the receiving portion 411 in the vertical direction. The first gear 42 is disposed in the receiving portion 411 and its two ends are inserted into the side hole 412. The second gear 43 is disposed in the receiving portion 411 and meshes with the first gear 42. The screw 44 is screwed into the threaded portion 21 and inserted into the bottom hole 413 and is synchronously rotatably connected to the second gear 43.

[0020] The movable rod 30 has a hollow structure. The gear seat 41 is disposed on the movable rod 30 and fixed to the inner periphery of the movable rod 30. The two ends of the first gear 42, which are opposite to each other along its axial direction, abut against the inner periphery of the movable rod 30.

[0021] The first gear 42 has a through drive hole 421. The lifting module 40 includes a rocker arm 45, which is located outside the movable rod 30. One end of the rocker arm 45 has a drive part 451, which can be detachably inserted into the drive hole 421.

[0022] The lifting mechanism 10 includes two fixed rods 20 and two movable rods 30. The lifting module 40 includes two gear seats 41, two first gears 42, two second gears 43, and two screws 44. The two gear seats 41 are respectively connected to the two movable rods 30. The two first gears 42, two second gears 43, and two screws 44 are respectively assembled on the two gear seats 41, and the two gear seats 41 are respectively connected to the two fixed rods 20. The lifting module 40 includes a connecting rod 46, which is disposed between the two movable rods 30. The crank 45 is disposed on the outside of the two movable rods 30. A connecting part 461 is provided at each end of the connecting rod 46, and the two connecting parts 461 are respectively inserted into the drive hole 421.

[0023] The lifting module 40 includes a plug 47. The rocker arm 45 and the plug 47 are respectively disposed on opposite sides of the two movable rods 30 and respectively connected to the two first gears 42. One end of the plug 47 is provided with a plug portion 471, which can be detachably plugged into the drive hole 421.

[0024] The lifting mechanism 10, through the aforementioned structure, can perform lifting functions with a small number of components. In use, the lifting mechanism 10 only requires the crank 45 to drive the two first gears 42 to rotate, and in conjunction with the threaded structure of the two screws 44, the two movable rods 30 can be raised or lowered.

[0025] Based on the above, the present invention can be summarized as having the following advantages:

[0026] This utility model relates to a furniture lifting mechanism, wherein the lifting mechanism includes at least one fixed rod, at least one movable rod, and a lifting module. The fixed rod has a threaded portion, and the movable rod is vertically movable and connected to the upper edge of the fixed rod. The lifting module includes at least one gear seat, at least one first gear, at least one second gear, and at least one screw. The gear seat is connected to the movable rod and has a receiving portion. The gear seat has a side hole communicating with the receiving portion horizontally and a bottom hole communicating with the receiving portion vertically. The first gear is disposed in the receiving portion and its two ends are inserted into the side hole. The second gear is disposed in the receiving portion and meshes with the first gear. The screw is screwed into the threaded portion and inserted into the bottom hole and is synchronously rotatably connected to the second gear. The lifting mechanism, through the above structure, can complete the lifting function with a small number of components.

Claims

1. A furniture lifting mechanism, characterized in that, Including: At least one fixing rod, wherein a threaded portion is provided inside the fixing rod; At least one movable rod is vertically movably connected to the upper vertical edge of the fixed rod; A lifting module includes at least one gear seat, at least one first gear, at least one second gear, and at least one screw. The gear seat is connected to a movable rod and has a receiving portion. The gear seat has a side hole that extends horizontally through the receiving portion and a bottom hole that extends vertically through the receiving portion. The first gear is disposed in the receiving portion and its two ends are inserted into the side hole. The second gear is disposed in the receiving portion and meshes with the first gear. The screw is screwed into the threaded portion and inserted into the bottom hole and is rotatably connected to the second gear.

2. The furniture lifting mechanism as described in claim 1, characterized in that: The movable rod has a hollow structure. The gear seat is disposed on the movable rod and fixed to the inner periphery of the movable rod. The two ends of the first gear, which are opposite in the axial direction, respectively abut against the inner periphery of the movable rod.

3. The furniture lifting mechanism as described in claim 2, characterized in that: The first gear has a through drive hole, and the lifting module includes a rocker arm that is located outside the movable rod. One end of the rocker arm has a drive part that can be detachably inserted into the drive hole.

4. The furniture lifting mechanism as described in claim 3, characterized in that: The lifting mechanism includes two fixed rods and two movable rods. The lifting module includes two gear seats, two first gears, two second gears, and two screws. The two gear seats are respectively connected to the two movable rods. The two first gears, two second gears, and two screws are respectively assembled on the two gear seats, and the two gear seats are respectively connected to the two fixed rods. The lifting module includes a connecting rod, which is located between the two movable rods. The crank is located on the outside of the two movable rods. Each end of the connecting rod is provided with a connecting part, and the two connecting parts are respectively inserted into the drive hole.

5. The furniture lifting mechanism as described in claim 4, characterized in that: The lifting module includes a plug, and the rocker arm and the plug are respectively located on opposite sides of the two movable rods and respectively connected to the two first gears. One end of the plug is provided with a plug portion, which can be detachably plugged into the drive hole.

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