A double-linkage lifting frame

Abstract

This utility model discloses a double-linkage lifting frame, including a support, a first shaft group and a second shaft group inside the support, a first mounting bracket mounted on the shaft of the first shaft group, and a second mounting bracket mounted on the shaft of the second shaft group. A guide groove is formed on the outer wall of the support, and a connecting rod is provided on the first mounting bracket. A transmission plate is provided on the connecting rod, and the other end of the transmission plate is connected to the second mounting bracket. By providing a transmission plate, the two supports can maintain consistent movement, avoiding the risk of jamming or asynchrony, making the operation smooth and easy. Through the flexible configuration of a single or double lifting frame, it can adapt to various home scenarios, possessing high versatility and cross-product reuse. It aims to meet the growing demand for multifunctional and spatially adaptable furniture in modern living environments, bringing more convenience and possibilities to modern home life.

Description

Technical Field

[0001] This utility model relates to the field of furniture support technology, and in particular to a double-linkage lifting frame. Background Technology

[0002] Current home environments, especially small apartments in cities, place higher demands on the space utilization efficiency and functional versatility of furniture. However, traditional height-adjustable furniture generally has some limitations: on the one hand, manufacturers usually need to develop adaptable lifting structures for different furniture, resulting in poor structural design versatility, limited application scenarios, and difficulty in cross-product reuse, thus increasing R&D and production costs; on the other hand, some existing lifting structures are quite complex and cumbersome, causing cumbersome operation steps and poor user experience, which restricts their widespread promotion and application in the home furnishing field. Utility Model Content

[0003] In order to overcome the shortcomings of the above-mentioned background technology, the present invention provides a double linkage lifting frame, which has high versatility, can be reused across products, has a simple structure, is easy to operate, and can effectively improve the user's operating experience.

[0004] A double-linkage lifting frame, characterized in that it includes: Support; The first shaft group and the second shaft group, each shaft group consists of at least two parallel shafts, which are rotatably mounted in the support; The first mounting bracket is disposed on the shaft of the first shaft assembly; The second mounting bracket is disposed on the shaft of the second shaft assembly; Guide grooves are provided on the outer wall of the support; A connecting rod, disposed on the first mounting bracket, is slidably connected to the guide groove; and A transmission plate is disposed on the connecting rod, and the other end of the transmission plate is connected to the second mounting bracket; When the first mounting bracket or the second mounting bracket is driven to move, the connecting rod slides along the guide groove and drives the other mounting bracket to move through the transmission plate, thereby realizing the linkage lifting and lowering of the first mounting bracket and the second mounting bracket.

[0005] Optionally, the first shaft group and the second shaft group are arranged in a staggered manner in the vertical direction, so that the first mounting frame and the second mounting frame have a height difference during the lifting process, and achieve staggered folding when retracted.

[0006] Optionally, the first mounting bracket includes a first support rod and a second support rod, which are respectively disposed on a shaft. The first support rod and the second support rod are provided with a first bracket, and the first support rod is provided with a connecting rod.

[0007] Optionally, the first support rod has an outwardly extending protrusion, and the connecting rod is mounted on the protrusion.

[0008] Optionally, the second mounting bracket includes a third support rod and a fourth support rod, which are respectively disposed on a shaft. The third support rod and the fourth support rod are jointly provided with a second bracket, and the transmission plate is connected to the third support rod.

[0009] Optionally, the third support rod is provided with a fixed rod, which is movably connected to the transmission plate.

[0010] Optionally, the connecting rod is provided with a limiting ring for limiting the position of the transmission plate.

[0011] Optionally, it also includes a first baffle and a second baffle respectively disposed on both sides of the support.

[0012] Optionally, a spring is connected to the connecting rod, and the other end of the spring is connected to the shaft with a fourth support rod.

[0013] Optionally, it also includes a pneumatic rod, and the shaft with a spring is also connected to a fixed part of the pneumatic rod, and the movable part of the pneumatic rod is connected to the connecting rod.

[0014] The beneficial effects of this utility model are: By incorporating a transmission plate, the two supports maintain consistent movement, avoiding the risk of jamming or asynchrony, resulting in smooth and easy operation. With flexible configuration of single or double lifting frames, it can adapt to various home scenarios, possessing high versatility and can be reused across products. It aims to meet the growing demand of modern living environments for furniture multifunctionality and spatial adaptability, bringing more convenience and possibilities to modern home life. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the first and second supports of this utility model in their unfolded state.

[0016] Figure 2 This is a rear view structural diagram of the first and second supports of this utility model in their unfolded state.

[0017] Figure 3 This is a partial top view of the first and second supports of this utility model in their unfolded state.

[0018] Figure 4 This is a partial three-dimensional structural diagram of the first and second supports of this utility model in their unfolded state.

[0019] Figure 5 This is a schematic diagram of the installation of the spring and gas spring of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the first and second supports of this utility model in their retracted state.

[0021] Figure 7 This is a partial top view of the structure of the first and second supports of this utility model in their retracted state.

[0022] Figure 8 This is a schematic diagram of the internal structure of the first and second supports of this utility model in their retracted state.

[0023] Explanation of reference numerals in the attached drawings: 1: support, 2: shaft, 31: first support rod, 32: second support rod, 33: first bracket, 41: third support rod, 42: fourth support rod, 43: second bracket, 51: guide groove, 52: connecting rod, 53: transmission plate, 511: limiting ring, 6: fixing rod, 7: spring, 8: gas spring, 91: first baffle, 92: second baffle. Detailed Implementation

[0024] The embodiments of this utility model will be described below with reference to the accompanying drawings. Example 1

[0025] like Figure 1-8 The first embodiment of the double-linkage lifting frame of this utility model is shown, including a support 1. The support 1 is rotatably connected to four shafts 2, two of which form a first shaft group and the other two shafts form a second shaft group. A first mounting frame is provided on the first shaft group, and a second mounting frame is provided on the second shaft group. The height of the first shaft group is less than that of the second shaft group. A guide groove 51 is provided on the support 1. A connecting rod 52 is connected to the first mounting frame. The connecting rod 52 is slidably connected to the guide groove 51. The guide groove 51 is used to limit the connecting rod 52, thereby limiting the highest and lowest points of the adjustment of the first bracket 33 and the second bracket 43. A transmission plate 53 is provided on the connecting rod 52. The transmission plate 53 is connected to the second mounting frame. When the first mounting frame or the second mounting frame is driven to move, the connecting rod slides along the guide groove and drives the other mounting frame to move through the transmission plate, thereby realizing the linkage lifting of the first mounting frame and the second mounting frame.

[0026] The first mounting frame includes a first support rod 31 and a second support rod 32, which are respectively fixedly mounted on the two shafts 2 of the first shaft group. The first support rod 31 and the second support rod 32 are movably connected to the first bracket 33, and a connecting rod 52 is fixedly connected to the first support rod 31.

[0027] In addition, the second mounting bracket includes a third support rod 41 and a fourth support rod 42, which are respectively mounted on the two shaft bodies 2 of the second shaft group. The third support rod 41 and the fourth support rod 42 are movably connected to the second bracket 43. The transmission plate 53 is movably connected to the third support rod 41 through the fixing rod 6.

[0028] Among them, a limiting ring 511 is welded on the connecting rod 52 to limit the transmission plate 53. The limiting ring 511 is used to limit the transmission plate 53 and prevent the transmission plate 53 from sliding at will.

[0029] In addition, it also includes a first baffle 91 and a second baffle 92 welded to both sides of the support 1 respectively. The first baffle 91 and the second baffle 92 are used to shield the second support rod 32 and the third support rod 41 located on the outside to prevent people from being pinched.

[0030] Specific working principle: such as Figure 1 As shown, when the first bracket 33 and the second bracket 43 need to be retracted, the first bracket 33 can be pushed towards the second bracket 43, or the second bracket 43 can be pushed towards the first bracket 33, or both brackets 33 and 43 can be pushed simultaneously. When the second bracket 43 moves, the third support rod 41 and the fourth support rod 42 rotate clockwise. The third support rod 41 drives the transmission plate 53 to tilt downwards towards the first baffle 91 via the fixed rod 6. The transmission plate 53 pushes the connecting rod 52 downwards along the guide groove 51, and the first support rod 31 rotates counterclockwise accordingly. The first support rod 31 drives the second support rod 32 to rotate counterclockwise synchronously via the first bracket 33. Since the first bracket 33 and the second bracket 43 are both mounted on the two support rods, the first bracket 33 and the second bracket 43 are... During the position adjustment process, the plate is kept parallel to support 1. This means that the plate installed on the two supports will not tilt during the lifting process, ensuring the stability and safety of the items on the plate. The two supports can maintain the consistency of movement, avoiding the risk of jamming or asynchrony, making the operation smooth and easy. When the connecting rod 52 moves to the bottom of the guide groove 51, the guide groove 51 will lock the connecting rod 52, and the first support 33 and the second support 43 cannot move further. At this time, the position of the two supports is adjusted, and the first support 33 is located below the second support 43. The guide groove 51 is used to limit the connecting rod 52, thereby limiting the highest and lowest points of the adjustment of the first support 33 and the second support 43, thus providing a clear and reliable bidirectional endpoint for the entire lifting stroke and ensuring operational safety.

[0031] This lifting frame can be used in everyday furniture and household items, and can be divided into single-lifting frame usage mode and double-lifting frame combination usage mode: Single lifting rack usage mode: Small tables can be installed on the two supports of a single lifting rack, which can then be used as a small three-dimensional storage board or a small dining table.

[0032] Dual lifting frame combination mode: This lifting frame can also be used in pairs. By installing large panels on the two lifting frames, more powerful furniture can be created. This mode can be used to build large furniture such as lifting coffee tables, large folding dining tables or custom desks. The dual lifting structure provides stable support and ensures the smoothness of the lifting process.

[0033] Of course, in other embodiments, it can also be applied to other suitable furniture products. It should be noted that the above application scenarios are only preferred options and are not restrictive or fixed.

[0034] This achieves the following technical effects: Thanks to the inherent height difference between the first support 33 and the second support 43, when the lift needs to be retracted, the two supports can drive their respective panels to fold and store in a staggered manner. This design greatly reduces the occupation of vertical space and optimizes living space. Through the flexible configuration of single or double lifts, it can adapt to various home scenarios, has high versatility, and can be reused across products. It aims to meet the growing demand of modern living environments for the multifunctionality and spatial adaptability of furniture, bringing more convenience and possibilities to modern home life. Example 2

[0035] like Figures 1 to 8 As shown, this embodiment is similar to Embodiment 1, except that a spring 7 is connected to the connecting rod 52, and the other end of the spring 7 is connected to the shaft 2 with the fourth support rod 42. In the operation mechanism of this lifting frame, when the relative position of the third support rod 41 and the fourth support rod 42 reaches a certain angle, the frictional damping force generated at its rotation point will increase to the maximum value. The resistance formed by this maximum static friction force exceeds the tensile force of the spring 7, causing the spring 7 to be unable to drive the connecting rod 52 to move, so that the relative position of the first support 33 and the second support 43 can be reliably maintained.

[0036] The specific working principle is as follows: When the connecting rod 52 slides downward along the guide groove 51, the connecting rod 52 stretches the spring 7. When the two supports are adjusted to the lowest position, the spring 7 is stretched to the maximum. At this time, the frictional damping force of the third support rod 41 and the fourth support rod 42 reaches the maximum value. Its resistance exceeds the restoring force of the spring 7. The spring 7 cannot overcome this static friction force to do work, causing the connecting rod 52 to be in a self-locking state and unable to reset. Therefore, the relative position of the first support 33 and the second support 43 is reliably maintained. When it is necessary to reset the two supports to the highest position, the first support 33 and the second support 43 can be pulled in opposite directions respectively. After the third support rod 41 and the fourth support rod 42 rotate clockwise to a certain angle, the frictional damping force of the third support rod 41 and the fourth support rod 42 becomes less than the restoring force of the spring 7. At this time, the stretched spring 7 can assist in pulling the connecting rod 52 to reset. When the first support 33 and the second support 43 are adjusted to a certain height, the operator can release their hands. The spring 7 can automatically assist the first support 33 and the second support 43 to reset. Example 3

[0037] like Figures 1 to 8 As shown, this embodiment is similar to Embodiment 1, except that it also includes a pneumatic rod 8. The shaft 2 with spring 7 is also rotatably connected to the fixed part of the pneumatic rod 8. The movable part of the pneumatic rod 8 is fixedly connected to the connecting rod 52. The pneumatic rod 8 is usually filled with inert gas or an oil-gas mixture, and damping is achieved through precisely designed small channels or valves. When the movable part of the pneumatic rod is reset, the internal medium flows through these narrow channels and generates significant resistance, thereby consuming mechanical energy and playing a buffering role.

[0038] The specific working principle is as follows: When the connecting rod 52 slides downward along the guide groove 51, the movable part of the air rod 8 extends accordingly. When the first support 33 and the second support 43 are reset, the connecting rod 52 pushes the movable part of the air rod 8 to reset. The air rod 8 can consume mechanical energy and play a buffering role. By utilizing the internal damping characteristics of the air rod 8, under the "slow release" action of the air rod 8, the energy of the spring 7 is smoothly absorbed and dissipated, so that the first support 33 and the second support 43 reset to their positions at a controllable and uniform speed, effectively avoiding violent impact and ensuring the safe and stable operation of this lifting frame.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-linkage lifting frame, characterized in that, include: Support; The first shaft group and the second shaft group, each shaft group consists of at least two parallel shafts, which are rotatably mounted in the support; The first mounting bracket is disposed on the shaft of the first shaft assembly; The second mounting bracket is disposed on the shaft of the second shaft assembly; Guide grooves are provided on the outer wall of the support; A connecting rod, disposed on the first mounting bracket, is slidably connected to the guide groove; and A transmission plate is disposed on the connecting rod, and the other end of the transmission plate is connected to the second mounting bracket; When the first mounting bracket or the second mounting bracket is driven to move, the connecting rod slides along the guide groove and drives the other mounting bracket to move through the transmission plate, thereby realizing the linkage lifting and lowering of the first mounting bracket and the second mounting bracket.

2. A double-linkage lifting frame according to claim 1, characterized in that: The first shaft group and the second shaft group are arranged in a staggered manner in the vertical direction, so that the first mounting frame and the second mounting frame have a height difference during the lifting and lowering process, and achieve staggered folding when retracted.

3. A double-linkage lifting frame according to claim 1, characterized in that: The first mounting bracket includes a first support rod and a second support rod, which are respectively disposed on a shaft. The first support rod and the second support rod are provided with a first bracket, and the first support rod is provided with a connecting rod.

4. A double-linkage lifting frame according to claim 3, characterized in that: The first support rod has an outwardly extending protrusion, and the connecting rod is mounted on the protrusion.

5. A double-linkage lifting frame according to claim 1, characterized in that: The second mounting bracket includes a third support rod and a fourth support rod, which are respectively mounted on a shaft. The third support rod and the fourth support rod are jointly provided with a second bracket, and the transmission plate is connected to the third support rod.

6. A double-linkage lifting frame according to claim 5, characterized in that: The third support rod is equipped with a fixed rod, which is movably connected to the transmission plate.

7. A double-linkage lifting frame according to claim 1, characterized in that: The connecting rod is provided with a limiting ring for limiting the position of the transmission plate.

8. A double-linkage lifting frame according to claim 1, characterized in that: It also includes a first baffle and a second baffle respectively disposed on both sides of the support.

9. A double-linkage lifting frame according to claim 1, characterized in that: A spring is connected to the connecting rod, and the other end of the spring is connected to the shaft with a fourth support rod.

10. A double-linkage lifting frame according to claim 1, characterized in that: It also includes a gas spring, and the shaft with a spring is also connected to a fixed part of the gas spring, and the movable part of the gas spring is connected to the connecting rod.

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