Headrest and lumbar support integrated support

Abstract

The application discloses a head and waist support integrated support, which comprises a head adjusting assembly and a support main body; the head adjusting assembly comprises a first driving assembly, a first connecting piece, a second connecting piece, a headrest connecting piece and a third connecting piece; one end of the first connecting piece is rotationally connected with one end of the third connecting piece, and the other end of the first connecting piece is rotationally connected with one end of the headrest connecting piece; one end of the second connecting piece is rotationally connected with the other end of the third connecting piece, and the other end of the second connecting piece is rotationally connected with the other end of the headrest connecting piece; the third connecting piece is fixedly connected with the support main body; the first driving assembly comprises a first driving mechanism and a first connecting cross rod; one end of the first connecting cross rod is fixed on one first connecting piece, and the other end of the first connecting cross rod is fixed on another first connecting piece; the first connecting cross rod is connected with the first driving mechanism, and the first connecting cross rod is driven to move by the first driving mechanism; the first connecting piece and the second connecting piece are both arc connecting pieces.

Description

Technical Field

[0001] This invention belongs to the field of furniture manufacturing technology, specifically relating to an integrated headrest and lumbar support bracket. Background Technology

[0002] Sofas and chairs are common household and office furnishings. As people's living standards gradually improve, the demands for comfort and functionality in sofas and chairs are increasing to address fatigue caused by prolonged sitting and to better relax the body. To enhance comfort, many existing sofas feature headrest and lumbar support adjustments. These adjustments involve an adjustable headrest at the top of the backrest and an adjustable lumbar support in the middle. A motor drives the movement of these components, allowing the sofa to be adjusted to its most comfortable position. The headrest and lumbar support mechanism is the core mechanical component of the backrest in a multi-functional sofa.

[0003] Currently, existing technologies use vertical downward pressure from a single point to adjust the headrest, but this method has drawbacks such as poor user experience and a certain degree of pressure. Furthermore, existing sofa backrests with both lumbar and head adjustment functions generally have complex structures, resulting in wider and larger backrest frames. This not only takes up more space during transportation, increasing transportation costs, but also makes the sofa bulky and takes up more room, affecting its overall appearance. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the above-mentioned shortcomings in the prior art, the present invention proposes an integrated headrest and lumbar support bracket.

[0005] Technical Solution: A headrest and lumbar support integrated bracket includes a head adjustment component and a bracket body. The head adjustment component is disposed at one end of the bracket body. The head adjustment component includes a first drive component, a first connector, a second connector, a headrest connector, and a third connector symmetrically disposed on both sides of the first drive component. One end of the first connector is rotatably connected to one end of the third connector, and the other end of the first connector is rotatably connected to one end of the headrest connector. One end of the second connector is rotatably connected to the other end of the third connector, and the other end of the second connector is rotatably connected to the other end of the headrest connector. The third connector is fixedly connected to the bracket body. The first drive component includes a first drive mechanism and a first connecting crossbar. One end of the first connecting crossbar is fixed to a first connector, and the other end is fixed to another first connector. The first connecting crossbar is connected to the first drive mechanism and is driven by the first drive mechanism to move the first connector. The first and second connectors are both arc-shaped connectors, and the arc direction of the first connector is opposite to the arc direction of the second connector.

[0006] Furthermore, the first drive assembly also includes a second connecting crossbar; the first drive mechanism is fixed to the bracket body via the second connecting crossbar.

[0007] Furthermore, the arc direction of the first connector is downward, and the arc direction of the second connector is upward.

[0008] Furthermore, the first driving mechanism is a first electric push rod, in which the motor is fixed to the second connecting crossbar, and the push rod in the first electric push rod is connected to the first connecting crossbar.

[0009] Furthermore, it also includes a waist adjustment assembly, which is disposed at the other end of the support body; the waist adjustment assembly includes a waist support plate, a second drive assembly, and third connecting members symmetrically disposed on both sides of the second drive assembly; the waist support plate is disposed between the two third connecting members; the second drive assembly includes a second drive mechanism and a third connecting crossbar; wherein, one end of the third connecting crossbar passes through one end of a third connecting member and is rotatably connected to the support body; the other end of the third connecting crossbar passes through one end of another third connecting member and is rotatably connected to the support body; the third connecting crossbar is connected to the second drive mechanism, and the second drive mechanism drives the third connecting crossbar to move up and down, and the third connecting crossbar drives the third connecting member.

[0010] Furthermore, the second drive assembly also includes a fourth connecting crossbar; the second drive mechanism is fixed to the bracket body via the fourth connecting crossbar.

[0011] Furthermore, the second drive mechanism is a second electric push rod, in which the motor is connected to the fourth connecting crossbar, and the push rod is connected to the third connecting crossbar.

[0012] Furthermore, the third connecting crossbar is a square tube, and a square hole is provided at one end of the third connector; one end of the third connecting crossbar passes through the square hole of the third connector and is rotatably connected to the inner side of the support body.

[0013] Furthermore, a protrusion is fixed on the inner side of the bracket body, and one end of the third connecting crossbar passes through the square hole of the third connecting member and is rotatably connected to the protrusion.

[0014] Furthermore, a support member is provided on the inner side of the bracket body. The support member is used to fix the fourth connecting crossbar to the bracket body. The third connecting member is fixedly connected to the fourth connecting crossbar to achieve a fixed connection with the bracket body.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0016] (1) The present invention has a simpler structure by using a connecting crossbar to drive the head adjustment component and the waist adjustment component to rotate;

[0017] (2) When adjusting the headrest, the present invention uses the first connector, the second connector, the headrest connector and the third connector to make the headrest move outward as a whole, that is, the headrest moves outward in a parallel plane. The present invention makes the headrest adjustment smoother and without pressure by moving the headrest back and forth in a parallel manner, and the user experience is better.

[0018] (3) The integrated bracket of the present invention has the advantages of easy installation, simple structure and high assembly efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical methods in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the front structure of an integrated headrest and lumbar support bracket;

[0021] Figure 2 A schematic diagram of the back structure of an integrated headrest and lumbar support bracket;

[0022] Figure 3 A structural diagram of a support frame, a head adjustment assembly, and a waist adjustment assembly;

[0023] Figure 4 is Figure 3 A schematic diagram of the rear structure;

[0024] Figure 5 is a structural diagram of a support body and a head adjustment assembly. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention.

[0026] In the description of this invention, it should be understood that the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0027] Furthermore, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, "up," "down," "left," and "right" are descriptions of the specific orientations of the bracket in actual use, based on the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1 and Figure 2 As shown, this embodiment discloses an integrated headrest and lumbar support bracket, which mainly includes a head adjustment component 1, a lumbar adjustment component 2, and a bracket body 3; the bracket body 3 of this embodiment is mainly composed of a left fixed side plate and a right fixed side plate.

[0031] The head adjustment assembly 1 in this embodiment includes a first drive mechanism 111, a first connecting crossbar 112, a second connecting crossbar 113, a pair of first connectors 12, a pair of second connectors 13, a pair of headrest connectors 14, and a pair of third connectors 15; the first drive assembly 11 is composed of the first drive mechanism 111, the first connecting crossbar 112, and the second connecting crossbar 113.

[0032] like Figure 1 As shown, one end of the first connector 12 is rotatably connected to one end of the third connector 15, and the other end of the first connector 12 is rotatably connected to one end of the headrest connector 14.

[0033] like Figure 1 As shown, one end of the second connector 13 is rotatably connected to the other end of the third connector 15, and the other end of the second connector 13 is hinged to the upper end of the headrest connector 14.

[0034] In this configuration, one end of the first connector 12 is positioned behind the position of one end of the second connector 13 on the third connector 15, with the top of the headrest as the front and the opposite direction as the back.

[0035] In this embodiment, both the first connector 12 and the second connector 13 are arc-shaped connectors, and the arc direction of the first connector 12 is opposite to that of the second connector 13. In some embodiments, the arc direction of the first connector 12 can be set downwards, and the arc direction of the second connector 13 can be set upwards. When the head adjustment assembly 1 is adjusted to its initial state, the distance between the highest point of the first connector 12 and the lowest point of the second connector 13 is as short as possible to ensure that the overall width of the bracket is narrow.

[0036] In this embodiment, the first drive mechanism 111 is disposed between the left fixed side plate and the right fixed side plate. That is, pairs of first connecting members 12, pairs of second connecting members 13, pairs of headrest connecting members 14, and pairs of third connecting members 15 are symmetrically disposed on both sides of the first drive mechanism 111. Specifically, one end of the first connecting crossbar 112 is fixed to one first connecting member 12, and the other end of the first connecting crossbar 112 is fixed to another first connecting member 12. One end of the second connecting crossbar 113 is fixed to the left fixed side plate, and the other end of the second connecting crossbar 113 is fixed to the right fixed side plate. A first hinge seat 114 is provided on the first connecting crossbar 112, and a second hinge seat 115 is provided on the second connecting crossbar 113. In some embodiments, the first drive mechanism 111 is a first electric push rod, and the motor in the first electric push rod is hinged to the second hinge seat 115 on the second connecting crossbar 113. The push rod in the first electric push rod is hinged to the first hinge seat 114 on the first connecting crossbar 112. The first electric push rod drives the first connecting member 12 to move, thereby driving the head adjustment assembly 11 to adjust up and down.

[0037] When the push rod in the first electric push rod extends, it drives the first connecting piece 12 to move forward and downward, thereby causing the entire head adjustment assembly to lift up.

[0038] When the entire head adjustment assembly needs to be retracted, the push rod in the first electric push rod retracts, restoring the entire head adjustment assembly to its initial state. To facilitate the retraction of the head adjustment assembly, the head adjustment assembly also includes a spring, one end of which is connected to the second connector 13, and the other end of which is connected to the support body 3.

[0039] Example 2:

[0040] like Figure 1 As shown in Figure 5, this embodiment discloses an integrated headrest and lumbar support bracket, which mainly includes a head adjustment component 1, a lumbar adjustment component 2, and a bracket body 3; the bracket body 3 of this embodiment is mainly composed of a left fixed side plate and a right fixed side plate.

[0041] The head adjustment assembly 1 of this embodiment includes a first drive mechanism 111, a first connecting crossbar 112, a second connecting crossbar 113, a pair of first connectors 12, a pair of second connectors 13, a pair of headrest connectors 14, and a pair of third connectors 15; the first drive assembly 11 is formed by the first drive mechanism 111, the first connecting crossbar 112, and the second connecting crossbar 113. One end of the first connector 12 is rotatably connected to one end of the third connector 15, and the other end of the first connector 12 is rotatably connected to one end of the headrest connector 14. One end of the second connector 13 is rotatably connected to the other end of the third connector 15, and the other end of the second connector 13 is hinged to the upper end of the headrest connector 14. The position of one end of the first connector 12 on the third connector 15 is further back than the position of one end of the second connector 13 on the third connector 15, with the direction of the top of the headrest considered forward and the opposite direction considered backward.

[0042] In this embodiment, both the first connector 12 and the second connector 13 are arc-shaped connectors, and the arc direction of the first connector 12 is opposite to that of the second connector 13. In some embodiments, the arc direction of the first connector 12 can be set downwards, and the arc direction of the second connector 13 can be set upwards. When the head adjustment assembly 1 is adjusted to its initial state, the distance between the highest point of the first connector 12 and the lowest point of the second connector 13 is as short as possible to ensure that the overall width of the bracket is narrow.

[0043] In this embodiment, the first drive mechanism 111 is disposed between the left fixed side plate and the right fixed side plate. That is, pairs of first connecting members 12, pairs of second connecting members 13, pairs of headrest connecting members 14, and pairs of third connecting members 15 are symmetrically disposed on both sides of the first drive mechanism 111. Specifically, one end of the first connecting crossbar 112 is fixed to one first connecting member 12, and the other end of the first connecting crossbar 112 is fixed to another first connecting member 12. One end of the second connecting crossbar 113 is fixed to the left fixed side plate, and the other end of the second connecting crossbar 113 is fixed to the right fixed side plate. A first hinge seat 114 is provided on the first connecting crossbar 112, and a second hinge seat 115 is provided on the second connecting crossbar 113. In some embodiments, the first drive mechanism 111 is a first electric push rod, the motor of which is hinged to the second hinge seat 115 on the second connecting crossbar 113. The push rod of the first electric push rod is hinged to the first hinge seat 114 on the first connecting crossbar 112, and the first electric push rod drives the first connecting member 12 to move, thereby driving the head adjustment assembly 11 to adjust up and down. When the push rod of the first electric push rod extends, it drives the first connecting member 12 to move forward and downward, thereby driving the entire head adjustment assembly to lift. When it is necessary to retract the entire head adjustment assembly, the push rod of the first electric push rod retracts, so that the entire head adjustment assembly can return to its initial state. In order to facilitate the restoration of the head adjustment assembly, the head adjustment assembly also includes a spring, one end of which is connected to the second connecting member 13, and the other end of which is connected to the support body 3.

[0044] The waist adjustment assembly 2 in this embodiment includes a waist support plate 21, a second drive mechanism 221, a third connecting crossbar 222, a fourth connecting crossbar 223, and a pair of third connecting members 23; the second drive assembly 22 is composed of the second drive mechanism 221, the third connecting crossbar 222, and the fourth connecting crossbar 223.

[0045] like Figure 3 As shown in Figure 5, a protrusion 31 is fixed on the inner side of the support body 3. In this embodiment, the third connecting crossbar 222 is disposed between the two third connecting members 23. Specifically, the third connecting crossbar 222 in this embodiment is a square tube with a square hole at one end of the third connecting member 23. One end of the third connecting crossbar 222 passes through the square hole of the third connecting member 23 and is rotatably connected to the protrusion 31. The third connecting crossbar 222 is connected to the second driving mechanism 221, and the second driving mechanism 221 drives the third connecting crossbar 222 to move up and down. The third connecting crossbar 222 drives the third connecting member 23, and the third connecting member 23 drives the waist support plate 21. A third hinge seat 224 is provided on the third connecting crossbar 222.

[0046] In this embodiment, the fourth connecting crossbar 223 is disposed between the left fixed side plate and the right fixed side plate. Specifically, one end of the fourth connecting crossbar 223 is fixed to the left fixed side plate, and the other end of the fourth connecting crossbar 223 is fixed to the right fixed side plate. A fourth hinge seat 225 is provided on the fourth connecting crossbar 223.

[0047] In some embodiments, the second drive mechanism 221 may be a second electric push rod, the motor of which is hinged to the fourth hinge seat 225 on the fourth connecting crossbar 223. The push rod of the second electric push rod is hinged to the third hinge seat 224 on the third connecting crossbar 222. The second drive mechanism 221 drives the third connecting crossbar 222 to move up and down, thereby causing the waist adjustment component 2 to adjust up and down.

[0048] In this embodiment, the lumbar support plate 21 is positioned between the two third connectors 23. In some embodiments, the lumbar support plate 21 has an arc-shaped design, which can better conform to the waistline and increase the comfort of lumbar support. To facilitate the restoration of the lumbar adjustment component 2, the lumbar adjustment component 2 also includes a spring, one end of which is connected to the support body 3, and the other end of which is connected to the third connector 23.

[0049] In this embodiment, the head adjustment assembly 1 and the support body 3 adopt a split structure. Specifically, a support member 32 is provided on the inner side of the support body 3. The support member 32 is used to fix the fourth connecting crossbar 223 to the support body 3. The third connecting member 15 is fixedly connected to the support body 3 by being fixedly connected to the fourth connecting crossbar 223. As shown in Figures 4 and 5, the third connecting member 15 is not directly connected to the support body 3, and there is a certain distance between the third connecting member 15 and the inner side of the support body 3. This split structure can greatly improve assembly efficiency.

Claims

1. A headrest and lumbar support integrated bracket, characterized in that: It includes a head adjustment component (1) and a support body (3); the head adjustment component (1) is disposed at one end of the support body (3); The head adjustment assembly (1) includes a first drive assembly (11), a first connector (12), a second connector (13), a headrest connector (14), and a third head connector (15) symmetrically arranged on both sides of the first drive assembly (11). One end of the first connector (12) is rotatably connected to one end of the third head connector (15), and the other end of the first connector (12) is rotatably connected to one end of the headrest connector (14); One end of the second connector (13) is connected to the other end of the third head connector (15), and the other end of the second connector (13) is rotatably connected to the other end of the headrest connector (14); the third head connector (15) is fixedly connected to the support body (3); The first drive assembly (11) includes a first drive mechanism (111) and a first connecting crossbar (112); one end of the first connecting crossbar (112) is fixed to a first connector (12), and the other end is fixed to another first connector (12); the first connecting crossbar (112) is connected to the first drive mechanism (111), and the first connecting crossbar (12) is driven to move by the first drive mechanism (111); Among them, the first connector (12) and the second connector (13) are both arc-shaped connectors, and the arc direction of the first connector (12) is opposite to the arc direction of the second connector (13); The arc direction of the first connector (12) is downward, and the arc direction of the second connector (13) is upward; It also includes a waist adjustment component (2), which is disposed at the other end of the support body (3); the waist adjustment component (2) includes a waist support plate (21), a second drive component (22), and a third waist connector (23) symmetrically disposed on both sides of the second drive component (22). The waist support plate (21) is positioned between the two waist third connectors (23); The second drive assembly (22) includes a second drive mechanism (221) and a third connecting crossbar (222); Wherein, one end of the third connecting crossbar (222) passes through one end of a waist third connecting piece (23) and is rotatably connected to the support body (3); the other end of the third connecting crossbar (222) passes through one end of another waist third connecting piece (23) and is rotatably connected to the support body (3); the third connecting crossbar (222) is connected to the second driving mechanism (221), and the second driving mechanism (221) drives the third connecting crossbar (222) to move up and down, and the third connecting crossbar (222) drives the waist third connecting piece (23).

2. The integrated headrest and lumbar support bracket according to claim 1, characterized in that: The first drive assembly (11) further includes a second connecting crossbar (113); the first drive mechanism (111) is fixed to the support body (3) via the second connecting crossbar (113).

3. The integrated headrest and lumbar support bracket according to claim 2, characterized in that: The first drive mechanism (111) is a first electric push rod, the motor in the first electric push rod is fixed to the second connecting crossbar (113), and the push rod in the first electric push rod is connected to the first connecting crossbar (112).

4. The integrated headrest and lumbar support bracket according to claim 1, characterized in that: The second drive assembly (22) further includes a fourth connecting crossbar (223); the second drive mechanism (221) is fixed to the bracket body (3) via the fourth connecting crossbar (223).

5. The integrated headrest and lumbar support bracket according to claim 4, characterized in that: The second drive mechanism (221) is a second electric push rod, in which the motor is connected to the fourth connecting crossbar (223) and the push rod is connected to the third connecting crossbar (222).

6. The integrated headrest and lumbar support bracket according to claim 1, characterized in that: The third connecting crossbar (222) is a square tube, and a square hole is provided at one end of the third connecting member (23) at the waist. After passing through the square hole of the third connecting member (23) at the waist, one end of the third connecting crossbar (222) is rotatably connected to the inner side of the support body (3).

7. The integrated headrest and lumbar support bracket according to claim 6, characterized in that: A protrusion (31) is fixed on the inner side of the bracket body (3). One end of the third connecting crossbar (222) passes through the square hole of the third connecting member (23) at the waist and is rotatably connected to the protrusion (31).

8. The integrated headrest and lumbar support bracket according to claim 4, characterized in that: A support member (32) is provided on the inner side of the support body (3). The support member (32) is used to fix the fourth connecting crossbar (223) on the support body (3). The head third connecting member (15) is fixedly connected to the support body (3) by being fixedly connected to the fourth connecting crossbar (223).

Images