An adjustable bracket for furniture

Abstract

The adjustable support for furniture provided by the present invention includes a base and a plurality of support members movably connected to the base. The base includes a lower part and an upper part covering the lower part. The support members include a plurality of lower support members pivotally connected to the lower part. The lower part includes a lower receiving part that receives the lower support members and forms a central channel, a screw that passes through the central channel, and a knob disposed at the lower end of the screw. The screw has a hemispherical nut away from the knob. The lower support members include legs for mounting on a mounting surface and a connecting part disposed near the lower receiving part. The connecting part includes a first elastic member connecting the lower receiving part and an end away from the mounting surface. When the legs are in the retracted position, the end abuts against the inner sidewall of the upper part. When the legs are in the extended position, the end is tangent to the nut, and the point of tangency with the nut can be changed by the action of the knob.

Description

Technical Field

[0001] This invention relates to the field of leisure products technology, and more particularly to an adjustable support for furniture. Background Technology

[0002] With economic development, urban dwellers often choose to leave their homes and enjoy outdoor life in order to relax.

[0003] Outdoor activities, such as fishing and camping, often require portable tables and chairs. However, common portable tables and chairs only have a folding function, are limited in their use, and lack adaptability and fun to different needs. Summary of the Invention

[0004] Therefore, it is necessary to propose an adjustable bracket for furniture to solve the problem of limited usage of portable furniture.

[0005] This invention provides an adjustable support for furniture, comprising a base and a plurality of support members movably connected to the base. The base includes a lower part and an upper part covering the lower part. The support members include three or more lower support members pivotally connected to the lower part. The lower part includes a lower receiving part that receives the lower support members and forms a central channel, a screw rod passing through the central channel, and a knob disposed at the lower end of the screw rod. The sidewall of the central channel is provided with threads corresponding to the screw rod. The screw rod has a hemispherical nut away from the knob. The lower support members include legs for mounting on a mounting surface and a connecting part disposed near the lower receiving part. The connecting part includes a first elastic member connecting the lower receiving part and an end away from the mounting surface. When the legs are in the retracted position, the end abuts against the inner sidewall of the upper part. When the legs are in the extended position, the end is tangent to the nut, and the point of tangency with the nut can be changed by the action of the knob.

[0006] Preferably, the end of the support leg away from the mounting surface is provided with teeth, and the teeth of multiple support legs mesh to achieve linkage.

[0007] Preferably, the lower receiving part is provided with a mounting hole, and the first elastic element is a torsion spring with one end fixed to the mounting hole and the other end fixed to the end of the connecting part away from the lower receiving part.

[0008] Preferably, the support also includes three or more upper support members that are movably connected to the upper part.

[0009] Preferably, the upper part includes a central shaft portion, an upper receiving portion for receiving an upper support member arranged around the central shaft portion, and a top cover fixed to the top of the central shaft portion and covering the upper receiving portion. A second elastic member and a third elastic member are provided between the central shaft portion and the upper receiving portion at vertical intervals. When the upper receiving portion rotates about the central shaft portion as an axis, the upper receiving portion is reset under the action of the second elastic member or the third elastic member.

[0010] Preferably, the second elastic member is a torsion spring with one end abutting against the top cover and the other end abutting against the upper receiving part, and the third elastic member is a torsion spring with one end abutting against the central shaft and the other end abutting against the upper receiving part.

[0011] Preferably, the upper support member is a telescopic rod with one end pivotally connected to the upper receiving part.

[0012] The adjustable support for furniture provided by this invention includes a base and multiple support members movably connected to the base. The base includes a lower part and an upper part covering the lower part. The support members include three or more lower support members pivotally connected to the lower part. The lower part includes a lower receiving part that receives the lower support members and forms a central channel, a screw rod passing through the central channel, and a knob disposed at the lower end of the screw rod. The sidewall of the central channel is provided with threads corresponding to the screw rod. The screw rod has a hemispherical nut away from the knob. The lower support members include legs for mounting on a mounting surface and a connecting part disposed near the lower receiving part. The connecting part includes a first elastic member connecting the lower receiving part and an end away from the mounting surface. When the legs are in the retracted position, the end abuts against the inner sidewall of the upper part. When the legs are in the extended position, the end is tangent to the nut, and the point of tangency with the nut can be changed by the action of the knob. The adjustable support for furniture provided by this invention can smoothly change the angle of the extended legs by changing the point of tangency between the end and the nut by the knob, thereby achieving the purpose of adjusting the height of the base relative to the mounting surface. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 An assembly diagram of an adjustable support for furniture provided in one embodiment;

[0015] Figure 2 An exploded view of an adjustable support for furniture provided in one embodiment;

[0016] Figure 3 A cross-sectional view of an adjustable support for furniture in a stowed position, provided for one embodiment;

[0017] Figure 4 A cross-sectional view of an adjustable support for furniture in an unfolded position, provided for one embodiment; and

[0018] Figure 5 A cross-sectional view of an adjustable support for furniture in another unfolded position, provided for one embodiment. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1-5 As shown, the present invention provides an adjustable support 100 for furniture, including a base 1 and a plurality of support members 2 movably connected to the base 1. The base 1 includes a lower part 11 and an upper part 12 covering the lower part 11. The support members 2 include three or more lower support members 21 pivotally connected to the lower part 11.

[0022] Specifically, the lower part 11 includes a lower receiving part 111 that receives the lower support member 21 and forms a central channel 110, a screw 112 that passes through the central channel 110, and a knob 113 disposed at the lower end of the screw 112. The side wall of the central channel 110 is provided with a thread corresponding to the screw 112, and the screw 112 has a hemispherical nut 1120 away from the knob 113.

[0023] The lower support member 21 includes a leg 211 for mounting on a mounting surface (e.g., the ground) and a connecting portion 212 disposed near the lower receiving portion 111. The connecting portion 212 includes a first elastic element 2120 connecting the lower receiving portion 111 and an end portion 2121 away from the mounting surface. In this embodiment, the lower receiving portion 111 is provided with a mounting hole (not labeled). The first elastic element 2120 is a torsion spring with one end fixed to the mounting hole and the other end fixed to the end of the connecting portion 212 away from the lower receiving portion 111. It is understood that in other embodiments, other elastic elements such as a spring sheet can be used instead of the torsion spring.

[0024] When the support leg 211 is in the retracted position, its end 2121 abuts against the inner wall 120 of the upper part 12. When the support leg 211 is in the extended position, its end 2121 is tangent to the nut 1120, and the point of tangency with the nut 1120 can be changed by the action of the knob 113. Specifically, when the support leg 211 is in the retracted position, the multiple support legs 211 are approximately parallel, and the first surface 2121a of the end 2121 abuts against the inner wall 120 of the upper part 12. When the support leg 211 is extended, the support leg 211 rotates about the lower receiving part 111 under the action of the first elastic member 2120. One end of the contact mounting surface of the multiple support legs 211 moves away from each other, the first surface 2121a of the end 2121 moves away from the inner wall 120 of the upper part 12, and the second surface 2121b of the end 2121 moves downward until it is tangent to the nut 1120. At this time, the support leg 211 reaches the extended position. Rotating the knob 113 located at the lower end of the screw 112 allows the screw 112 to move upwards or downwards within the central channel 110, causing the nut 1120 to rise or fall. When the nut 1120 moves, the point of tangency between the second surface 2121b of the end 2121 and the nut 1120 changes accordingly. Specifically, as... Figure 4 As shown, when the nut 1120 moves to its lowest point, the tangent point between the second surface 2121b and the nut 1120 is closest to the central axis of the central channel 110. At this time, the angle of the support leg 211 is at its maximum, and the distance between the lower part 11 and the mounting surface is at its minimum, which means the height of the adjustable bracket 100 is at its lowest. Figure 5 As shown, when the knob 113 is rotated, causing the nut 1120 to gradually rise from its lowest point, the point of tangency between the second surface 2121b and the nut 1120 gradually moves away from the central axis of the central channel 110. At this time, the angle of the outstretched leg 211 gradually decreases, and the distance between the lower part 11 and the mounting surface gradually increases, thus the height of the adjustable bracket 100 gradually increases. It can be understood that to lower the height of the adjustable bracket 100, the knob 113 is rotated in the opposite direction, causing the nut 1120 to lower, the point of tangency between the second surface 2121b and the nut 1120 to gradually move closer to the central axis of the central channel 110, and the angle of the outstretched leg 211 gradually increases.

[0025] By changing the tangent point between the end and the nut using knob 113, the angle of the outstretched leg 211 can be smoothly changed, thereby adjusting the height of the base 1 relative to the mounting surface, and thus changing the height of the adjustable bracket 100.

[0026] Preferably, the end of the support leg 211 away from the mounting surface is provided with teeth (not labeled), and the teeth of multiple support legs 211 mesh to achieve linkage, which facilitates the unfolding or folding of the support leg 211.

[0027] Furthermore, the support member 2 also includes three or more upper support members 22 movably connected to the upper part 12. The upper part 12 includes a central shaft portion 121, an upper receiving portion 122 disposed around the central shaft portion 121 for receiving the upper support members 22, and a top cover 123 fixed to the top of the central shaft portion 121 and covering the upper receiving portion 122.

[0028] like Figure 5 As shown, a second elastic member 124 and a third elastic member 125 are provided between the central shaft portion 121 and the upper receiving portion 122, spaced vertically apart. When the upper receiving portion 122 rotates about the central shaft portion 121, it resets under the action of the second elastic member 124 or the third elastic member 125. Specifically, the second elastic member 124 is a torsion spring with one end abutting against the top cover 123 and the other end abutting against the upper receiving portion 122; the third elastic member 125 is a torsion spring with one end abutting against the central shaft portion 121 and the other end abutting against the upper receiving portion 122. When the upper receiving portion 122 rotates about one side of the central shaft portion 121, the second elastic member 124 rebounds, causing the upper receiving portion 122 to return to its initial position; when the upper receiving portion 122 rotates about the other side of the central shaft portion 121, the third elastic member 125 rebounds, causing the upper receiving portion 122 to return to its initial position. In this way, the upper part 12 can be rotated left and right to reset, increasing the fun of using the adjustable bracket 100.

[0029] Preferably, the upper support member 22 is a telescopic rod with one end pivotally connected to the upper receiving part 122. The upper support member 22 can rotate around the upper receiving part 122. When the upper support member 22 rotates above the upper receiving part 122 and a tablecloth or chair cloth is installed on the end of the upper support member 22 away from the upper receiving part 122, the adjustable bracket 100 can be transformed into a portable table or portable chair. It is understood that the lengths of the multiple upper support members 22 can be the same or different. For example, when the lengths of the multiple upper support members 22 are the same, the adjustable bracket 100 can be used as a support for a table or stool; when the lengths of the multiple upper support members 22 are different, the adjustable bracket 100 can be used as a support for a chair or hammock. In other embodiments, the upper support member 22 may not be a telescopic rod, but a single or multiple sections of tube pivotally connected to or detachably connected to the upper receiving part 122.

[0030] The adjustable support for furniture provided by this invention includes a base and multiple support members movably connected to the base. The base includes a lower part and an upper part covering the lower part. The support members include three or more lower support members pivotally connected to the lower part. The lower part includes a lower receiving part that receives the lower support members and forms a central channel, a screw rod passing through the central channel, and a knob disposed at the lower end of the screw rod. The sidewall of the central channel is provided with threads corresponding to the screw rod. The screw rod has a hemispherical nut away from the knob. The lower support members include legs for mounting on a mounting surface and a connecting part disposed near the lower receiving part. The connecting part includes a first elastic member connecting the lower receiving part and an end away from the mounting surface. When the legs are in the retracted position, the end abuts against the inner sidewall of the upper part. When the legs are in the extended position, the end is tangent to the nut, and the point of tangency with the nut can be changed by the action of the knob. The adjustable support for furniture provided by this invention can smoothly change the angle of the extended legs by changing the point of tangency between the end and the nut by the knob, thereby achieving the purpose of adjusting the height of the base relative to the mounting surface.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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. An adjustable support for furniture comprising a base and a plurality of support members movably connected to the base, characterised in that, The base includes a lower part and an upper part covering the lower part. The support includes three or more lower support members pivotally connected to the lower part. The lower part includes a lower receiving part that receives the lower support members and forms a central channel, a screw rod passing through the central channel, and a knob disposed at the lower end of the screw rod. The sidewall of the central channel is provided with threads corresponding to the screw rod. The screw rod has a hemispherical nut away from the knob. The lower support member includes a leg for mounting on a mounting surface and a connecting part disposed near the lower receiving part. The connecting part includes a first elastic member connecting the lower receiving part and an end away from the mounting surface. When the leg is in the retracted position, the end abuts against the inner sidewall of the upper part. When the leg is in the extended position, the end is tangent to the nut. By rotating the knob, the distance between the nut and the central channel can be changed, thereby changing the tangent point between the end and the nut, and thus changing the extension angle of the leg.

2. An adjustable support for furniture according to claim 1, characterised in that, The end of each leg away from the mounting surface is provided with teeth, and the teeth of multiple legs mesh to achieve linkage.

3. The adjustable support for furniture according to claim 1, characterized in that, The lower receiving part is provided with a mounting hole, and the first elastic element is a torsion spring with one end fixed to the mounting hole and the other end fixed to the end of the connecting part away from the lower receiving part.

4. The adjustable support for furniture of claim 1, wherein, The support also includes three or more upper support members that are movably connected to the upper part.

5. An adjustable support for furniture according to claim 4, characterised in that, The upper part includes a central axis, an upper receiving part arranged around the central axis for receiving the upper support member, and a top cover fixed to the top of the central axis and covering the upper receiving part. A second elastic member and a third elastic member are provided between the central axis and the upper receiving part at vertical intervals. When the upper receiving part rotates about the central axis, the upper receiving part is reset under the action of the second elastic member or the third elastic member.

6. An adjustable support for furniture according to claim 5, characterised in that, The second elastic element is a torsion spring with one end abutting against the top cover and the other end abutting against the upper receiving part; the third elastic element is a torsion spring with one end abutting against the central shaft and the other end abutting against the upper receiving part.

7. The adjustable support for furniture according to claim 5, characterized in that, The upper support member is a telescopic rod with one end pivotally connected to the upper receiving part.

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