Height-adjustable support for furniture

Abstract

The present invention provides a height-adjustable support for furniture, comprising a base and three or more supporting members pivotally connected to the base, wherein the base comprises a frame body having three or more receiving portions that respectively correspond to the supporting members, and a rotating mechanism that is connected to the frame body and abuts against the supporting members; the rotating mechanism comprises a support fixed to the frame body, a rotating shaft provided at the center of the support, a rotary knob provided on the lower portion of the rotating shaft, and a rotating table provided on the upper portion of the rotating shaft; the rotating table has three or more contact surfaces corresponding to the supporting members; the supporting members are each provided with a straight contact end close to the base; the contact end is tangential to each contact surface and rotates along with the rotating table to change the distance between the contact end and the central axis of the rotating shaft. According to the height-adjustable support for furniture provided by the present invention, the distance between the contact end of the supporting member and the central axis is changed by the rotation of the rotating table, so that the pivoting angle of the supporting member can be changed, thereby adjusting the overall height of the support.

Description

Height-adjustable bracket for furniture Technical Field

[0001] The present invention relates to the technical field of leisure products, in particular to a height-adjustable bracket for furniture. Background Art

[0002] With the development of the economy, urban people often choose to go out and enjoy outdoor life in order to relax. Outdoor activities, such as fishing and camping, usually require the use of portable furniture such as tables and chairs. Technical issues

[0003] However, common portable tables and chairs only have the function of being foldable, have a single way of use, and lack adaptability and fun to different needs. Technical Solutions

[0004] Based on this, it is necessary to propose a height-adjustable bracket for furniture to solve the problem of single usage of portable furniture.

[0005] The present invention provides a height-adjustable bracket for furniture, comprising a base and three or more support members pivotally connected to the base, the base comprising a frame having three or more receiving portions corresponding to each support member and a rotating mechanism connected to the frame and abutting against the support members, the rotating mechanism comprising a bracket fixed to the frame, a rotating shaft arranged at the center of the bracket, a knob arranged at the bottom of the rotating shaft, and a rotating platform arranged at the top of the rotating shaft, the rotating platform having three or more contact surfaces corresponding to each support member, the support member having a straight contact end close to the base, the contact end being tangent to the contact surface and changing its distance from the central axis of the rotating shaft as the rotating platform rotates.

[0006] Preferably, the rotating platform is substantially in the shape of a frustum, and each contact surface is gradually raised along the side of the rotating platform.

[0007] Preferably, the contact surface has a proximal end close to the central axis and a distal end far away from the central axis, and the distance between the distal end and the central axis is less than or equal to the radius of the bottom of the rotating platform.

[0008] Preferably, the support member includes a pivot portion close to the contact end and pivotally connected to the receiving portion, and when the distance from the contact end to the central axis of the rotating shaft changes, the pivot portion rotates relative to the receiving portion.

[0009] Preferably, the knob is located below the receiving portion. Beneficial effects

[0010] The height-adjustable bracket for furniture provided by the present invention includes a base and three or more support members pivotally connected to the base. The base includes a frame having three or more receiving portions corresponding to each support member and a rotating mechanism connected to the frame and abutting against the support members. The rotating mechanism includes a bracket fixed to the frame, a rotating shaft disposed at the center of the bracket, a knob disposed below the rotating shaft, and a rotating table disposed above the rotating shaft. The rotating table has one or more contact surfaces corresponding to each support member. The support member has a straight contact end near the base. The contact end is tangent to the contact surface and changes its distance from the central axis of the rotating shaft as the rotating table rotates. The height-adjustable bracket for furniture provided by the present invention changes the distance from the contact end of the support member to the central axis by rotating the rotating table, thereby changing the pivot angle of the support member and adjusting the overall height of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] FIG1 is a combined view of a height-adjustable bracket for furniture provided by one embodiment;

[0013] FIG2 is an exploded view of a height-adjustable bracket for furniture provided in one embodiment; and

[0014] FIG3 is a schematic diagram of the cooperation between the rotating platform and the supporting member of the height-adjustable bracket for furniture provided by one embodiment. Best Mode for Carrying Out the Invention

[0015] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0017] As shown in Figures 1-3, the present invention provides a height-adjustable stand 100 for furniture. The stand comprises a base 1 and three or more support members 2 pivotally connected to the base 1. The base 1 includes a frame 11 having three or more receiving portions 111 corresponding to each support member 2, and a rotating mechanism 12 connected to the frame 11 and abutting against the support members 2. The rotating mechanism 12 comprises a bracket 121 fixed to the frame 11, a rotating shaft 122 disposed at the center of the bracket 121, a knob 123 disposed below the rotating shaft 122, and a rotating platform 124 disposed above the rotating shaft 122. The rotating platform 124 has one or more contact surfaces 125 corresponding to each support member 2. The support member 2 has a straight contact end 21 proximate the base 1. The contact end 21 abuts against the rotating platform 124, tangentially contacting the contact surface 125. The distance between the contact end 21 and the central axis of the rotating shaft 122 can be varied as the rotating platform 124 rotates.

[0018] Specifically, the rotating platform 124 is generally truncated, and each contact surface 125 is gradually elevated along the side of the rotating platform 124. In this embodiment, the contact surface 125 has a proximal end 1251 close to the central axis and a distal end 1252 away from the central axis, and the distance between the distal end 1252 and the central axis is less than or equal to the radius of the bottom of the rotating platform 124.

[0019] Furthermore, the support member 2 includes a pivot portion 22 close to the contact end 21 and pivotally connected to the receiving portion 111 . When the distance from the contact end 21 to the central axis of the rotating shaft 122 changes, the pivot portion 22 rotates relative to the receiving portion 111 . Modes for Carrying Out the Invention

[0020] In this embodiment, there are four support members 2, and accordingly, there are four receiving portions 111. The rotating platform 124 has four contact surfaces 125, each corresponding to a contact end 21 of each support member 2. When a contact end 21 abuts a proximal end 1251 of a contact surface 125, the angle between the support member 2 and the central axis of the rotating shaft 122 is maximum, and the overall height of the bracket 100 is minimum. At this point, rotating the rotating platform 124 clockwise causes the point of tangency between the contact end 21 and the contact surface 125 to gradually move from the proximal end 1251 to the distal end 1252, gradually increasing the distance between the contact end 21 and the central axis. Because the support member 2 is pivotally connected to the receiving portion 111, as the distance between the contact end 21 and the central axis increases, the support member 2 rotates accordingly, causing the angle between the support member 2 and the central axis of the rotating shaft 122 to gradually decrease, thereby gradually increasing the height of the bracket 100. When the contact end 21 reaches the distal end 1252, the bracket 100 reaches its maximum height.

[0021] It can be understood that a flat panel can be directly installed on the base of the height-adjustable bracket for furniture provided by the present invention to form a table, or it can be connected with more supporting members to form a seat bracket.

[0022] Preferably, the knob 123 is located below the receiving portion 111 to facilitate the user to operate the rotating mechanism 12 .

[0023] The height-adjustable bracket for furniture provided by the present invention includes a base and three or more support members pivotally connected to the base. The base includes a frame having three or more receiving portions corresponding to each support member and a rotating mechanism connected to the frame and abutting against the support members. The rotating mechanism includes a bracket fixed to the frame, a rotating shaft disposed at the center of the bracket, a knob disposed below the rotating shaft, and a rotating table disposed above the rotating shaft. The rotating table has one or more contact surfaces corresponding to each support member. The support member has a straight contact end near the base. The contact end is tangent to the contact surface and changes its distance from the central axis of the rotating shaft as the rotating table rotates. The height-adjustable bracket for furniture provided by the present invention changes the distance from the contact end of the support member to the central axis by rotating the rotating table, thereby changing the pivot angle of the support member and adjusting the overall height of the bracket.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A height-adjustable bracket for furniture, comprising a base and three or more support members pivotally connected to the base, characterized in that: The base includes a frame having three or more receiving parts corresponding to each of the support members and a rotating mechanism connected to the frame and abutting against the support members, the rotating mechanism includes a bracket fixed to the frame, a rotating shaft arranged at the center of the bracket, a knob arranged at the lower part of the rotating shaft and a rotating table arranged at the upper part of the rotating shaft, the rotating table has one or more contact surfaces corresponding to each of the support members, the support member has a straight contact end close to the base, the contact end is tangent to the contact surface and changes its distance to the central axis of the rotating shaft as the rotating table rotates.

2. The height-adjustable bracket for furniture according to claim 1, characterized in that: The rotating platform is substantially in the shape of a truncated cone, and each of the contact surfaces is gradually raised along the side surface of the rotating platform.

3. The height-adjustable bracket for furniture according to claim 2, characterized in that: The contact surface has a proximal end close to the central axis and a distal end far away from the central axis, and a distance from the distal end to the central axis is less than or equal to a radius of the bottom of the rotating platform.

4. The height-adjustable bracket for furniture according to claim 1, characterized in that: The support member includes a pivoting portion close to the contact end and pivotally connected to the receiving portion, and when the distance from the contact end to the central axis of the rotating shaft changes, the pivoting portion rotates relative to the receiving portion.

5. The height-adjustable bracket for furniture according to claim 1, characterized in that: The knob is located below the receiving portion.

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