An armrest adjustment mechanism and a sofa

Abstract

This utility model relates to the field of furniture and discloses an armrest adjustment mechanism and a sofa, including a drive assembly and an armrest assembly. The armrest assembly includes a first armrest component, a second armrest component, and a third armrest component. The drive assembly connects to and drives the first armrest component to rise and fall. The second armrest component is connected to the first armrest component to move back and forth. The third armrest component is rotatably connected to the second armrest component. The user can control the drive assembly to move the first armrest component upward to adjust to a suitable height. Then, the user can adjust the positions of the second and third armrest components electrically or manually, so that the user's arms can always be supported, or items can be placed on the third armrest component, thereby improving the overall comfort and functionality of the sofa.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and more specifically, to an armrest adjustment mechanism and a sofa. Background Technology

[0002] In existing sofas, armrests are typically fixed as separate modules on both sides of the sofa, immovable, and cannot be adjusted in height or angle according to the user's height and usage needs, failing to meet diverse customer requirements. This is especially true for customers with infants or young children, who require armrests that can be adjusted in height and angle to hold items. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model first provides an armrest adjustment mechanism, including a drive assembly and an armrest assembly. The armrest assembly includes a first armrest component, a second armrest component, and a third armrest component. The drive assembly connects to and drives the first armrest component to rise and fall. The second armrest component is movably connected to the first armrest component, and the third armrest component is rotatably connected to the second armrest component.

[0004] Optionally, the first handrail component is provided with a first sliding groove, and the bottom of the second handrail component is provided with a slider. The slider and the first sliding groove are slidably connected. The bottom of the slider is connected to a limiting block. The width of the limiting block is greater than the width of the first sliding groove. The upper limit of the sidewall of the first sliding groove in the vertical direction is located between the second handrail component and the limiting block.

[0005] Optionally, the second handrail component is provided with a connecting seat, the connecting seat is provided with an arc-shaped second sliding groove, and the bottom of the third handrail component is provided with a connecting shaft, the connecting shaft is limited in the second sliding groove and is slidably connected to the second sliding groove.

[0006] Optionally, the drive assembly includes a screw, a connector, and a drive member. The drive member connects to and drives the screw to rotate. The connector has a connecting portion, which is threadedly connected to the screw. The connector and the screw are slidably connected vertically. When the connector is fixed, one end of the screw is connected to the handrail assembly and drives the handrail assembly to rise and fall. When the screw is fixed in the vertical direction, the connector connects to the handrail assembly and drives the handrail assembly to rise and fall.

[0007] Optionally, the drive assembly further includes a drive housing, in which the drive member and the screw are both housed. The drive housing has a clearance opening on its side wall, the connecting part passes through the clearance opening and is slidably connected to the clearance opening, and the connecting member is sleeved on the drive housing and is slidably connected to the drive housing.

[0008] Optionally, the drive assembly further includes a fixing frame, the fixing frame having a third sliding groove, and the drive housing having a sliding block, the sliding block and the third sliding groove being slidably connected vertically.

[0009] Optionally, the first handrail component is provided with a limiting groove, and the drive housing is limited within the limiting groove.

[0010] Optionally, the armrest adjustment mechanism further includes a housing, in which the drive assembly is housed. The upper end of the housing has an opening, and the first armrest component is movably connected to the opening. The second armrest component and the third armrest component are both located above the opening.

[0011] Optionally, an annular top cover is connected to the opening, and the top cover is fixedly connected to the housing, wherein the first handrail component is columnar.

[0012] Compared to existing technologies, the armrest adjustment mechanism of this invention allows for the placement of items on the third armrest component, and the mechanism is located inside the sofa body. When a user is feeding, playing games, or reading on the sofa, they can control the drive component to move the first armrest component upwards to adjust to a suitable height. Then, the positions of the second and third armrest components can be adjusted electrically or manually to accommodate the user's arms, ensuring they are always supported. Items can also be placed on the third armrest component, thus improving the overall comfort and functionality of the sofa. When the user does not need to adjust the armrests, they can control the drive component to move the first armrest component downwards, and then adjust the positions of the second and third armrest components electrically or manually so that their vertical projections coincide with or are included within the projection of the first armrest component, thus not affecting the user's ability to sit and get up on the sofa.

[0013] In addition, this utility model provides a sofa, including the armrest adjustment mechanism described above.

[0014] Compared to existing technologies, the sofa described in this utility model has the same advantages as the aforementioned armrest adjustment mechanism, which will not be repeated here. Attached Figure Description

[0015] Figure 1 The structure of the armrest adjustment mechanism in this embodiment of the utility model Figure 1 ;

[0016] Figure 2 The structure of the armrest adjustment mechanism in this embodiment of the utility model Figure 2 ;

[0017] Figure 3 This is a partial structural diagram of the handrail assembly according to an embodiment of the present utility model;

[0018] Figure 4 This is a connection structure diagram of the first handrail component, the second handrail component, and the connecting shaft according to an embodiment of the present utility model;

[0019] Figure 5 The structure of the armrest adjustment mechanism in this embodiment of the utility model Figure 3 ;

[0020] Figure 6 for Figure 5 Enlarged view of section A;

[0021] Figure 7 This is a structural diagram of the first handrail component according to an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. First handrail component; 11. First slide groove; 12. Limiting groove; 2. Second handrail component; 21. Slider; 22. Limiting block; 23. Connecting seat; 231. Second slide groove; 3. Third handrail component; 31. Connecting shaft; 4. Screw; 5. Connecting piece; 51. Connecting part; 6. Drive housing; 61. Clearance opening; 62. Slide seat; 7. Fixing frame; 71. Third slide groove; 8. Housing; 81. Top cover. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0026] This utility model embodiment provides an armrest adjustment mechanism, combined with Figures 1 to 7 As shown, it includes a drive assembly and a handrail assembly. The handrail assembly includes a first handrail component 1, a second handrail component 2, and a third handrail component 3. The drive assembly connects to and drives the first handrail component 1 to rise and fall. The second handrail component 2 is connected to the first handrail component 1 to move back and forth. The third handrail component 3 is connected to the second handrail component 2 to rotate.

[0027] like Figure 2 As shown, in this embodiment, the first handrail component 1 has a waist-shaped cross-section, the second handrail component 2 and the third handrail component 3 are both flat, and one end of the third handrail component 3 is rotatably connected to the second handrail component 2, thereby increasing the rotation range of the third handrail component 3.

[0028] Items can be placed on the third armrest 3, and the armrest adjustment mechanism is located inside the sofa body. When the user is feeding, playing games, or reading on the sofa, they can control the drive component to move the first armrest 1 upwards to adjust to a suitable height. Then, the positions of the second armrest 2 and the third armrest 3 can be adjusted electrically or manually to accommodate the user's arms, ensuring that the user's arms are always supported, or items can be placed on the third armrest 3, thereby improving the overall comfort and functionality of the sofa. When the user does not need to adjust the armrests, they can control the drive component to move the first armrest 1 downwards, and adjust the positions of the second armrest 2 and the third armrest 3 electrically or manually so that the vertical projections of the second armrest 2 and the third armrest 3 coincide with or are included in the projection of the first armrest 1, thus not affecting the user's ability to sit and get up on the sofa normally.

[0029] like Figure 3 As shown, optionally, the first handrail component 1 is provided with a first sliding groove 11, and the bottom of the second handrail component 2 is provided with a slider 21. The slider 21 and the first sliding groove 11 are slidably connected. The bottom of the slider 21 is connected to a limiting block 22. The width of the limiting block 22 is greater than the width of the first sliding groove 11. The upper limit of the sidewall of the first sliding groove 11 in the vertical direction is located between the second handrail component 2 and the limiting block 22.

[0030] In this embodiment, there are two first sliding grooves 11 located on the top plate of the first handrail component 1. Two sliders 21 and two limiting blocks 22 are also provided, distributed at the bottom left and right ends of the second handrail component 2. This ensures that the second handrail component 2 experiences more even and stable force during sliding, and the sliders 21 are less prone to breakage. The top plate of the first handrail component 1 is clamped by the limiting blocks 22 and the second handrail component 2, thus fixing it vertically and preventing it from moving up and down or deviating from the sliding trajectory during movement, making the sliding structure more stable.

[0031] like Figure 4 As shown, optionally, the second handrail member 2 is provided with a connecting seat 23, the connecting seat 23 is provided with an arc-shaped second sliding groove 231, and the bottom of the third handrail member 3 is provided with a connecting shaft 31, the connecting shaft 31 is limited in the second sliding groove 231 and is slidably connected to the second sliding groove 231.

[0032] In this embodiment, a pivot is connected between the second handrail component 2 and the third handrail component 3, and they are rotatably connected via the pivot. The arc-shaped second slide groove 231 cooperates with the connecting shaft 31 to limit the rotation of the third handrail component 3, and the arc-shaped ends of the second slide groove 231 are the rotation limit points of the third handrail component 3. When the third handrail component 3 is at the rotation limit point, the third handrail component 3 is parallel to the left and right direction.

[0033] like Figure 5 As shown, optionally, the drive assembly includes a screw 4, a connector 5, and a drive member. The drive member connects to and drives the screw 4 to rotate. The connector 5 has a connecting part 51, which is threadedly connected to the screw 4. The connector 5 and the screw 4 are slidably connected vertically. When the connector 5 is fixed, one end of the screw 4 is connected to the handrail assembly and drives the handrail assembly to rise and fall. When the screw 4 is fixed in the vertical direction, the connector 5 connects to the handrail assembly and drives the handrail assembly to rise and fall.

[0034] In this embodiment, the driving component is a motor. When the connecting piece 5 is fixed, neither rotating nor moving up and down, the motor drives the screw 4 to rotate in both directions. Under the action of the threaded connection, the screw 4 and the motor move up and down together. When the screw 4 is fixed in the vertical direction, the motor drives the screw 4 to rotate in both directions, and the connecting piece 5 moves up and down along the screw 4. The driving component is controlled by a circuit. Buttons or a wireless remote control can be set on the sofa body to control the operation of the driving component, eliminating the need for the user to manually lift or press the armrest assembly to raise or lower it, making it more effortless and convenient.

[0035] like Figure 6 As shown, optionally, the drive assembly further includes a drive housing 6, in which the drive member and the screw 4 are both housed. The drive housing 6 has a clearance opening 61 on its side wall, and the connecting part 51 passes through the clearance opening 61 and is slidably connected to the clearance opening 61. The connecting member 5 is sleeved on the drive housing 6 and is slidably connected to the drive housing 6.

[0036] In this embodiment, the screw 4 and the motor move up and down together via the drive housing 6. The screw 4 is housed in the drive housing 6, which is not only aesthetically pleasing but also prevents external parts from touching the screw 4 and affecting its operation. The clearance opening 61 is provided in the vertical direction, and the upper part of the clearance opening 61 communicates with the drive housing 6, so that the connecting part 51 on the connector 5 can extend into the clearance opening 61 from above and be threadedly connected to the screw 4.

[0037] like Figure 2 As shown, optionally, the drive assembly further includes a fixing frame 7, the fixing frame 7 is provided with a third sliding groove 71, the drive housing 6 is provided with a sliding seat 62, and the sliding seat 62 and the third sliding groove 71 are slidably connected vertically.

[0038] In this embodiment, the fixing frame 7 and the housing 8 are fixedly connected, and the third sliding groove 71 is arranged in the vertical direction, making the vertical movement structure of the driving housing 6 more stable and less prone to shaking.

[0039] like Figure 7 As shown, optionally, the first handrail component 1 is provided with a limiting groove 12, and the drive housing 6 is limited in the limiting groove 12.

[0040] In this embodiment, the shape of the limiting groove 12 is adapted to the shape of the drive housing 6. The limiting groove 12 is used to prevent the drive housing 6 from swaying in the left rear direction or the front and back direction, so that the up and down moving structure of the drive housing 6 is more stable and it is not easy to deviate from the trajectory when moving.

[0041] like Figure 1 As shown, optionally, the armrest adjustment mechanism further includes a housing 8, in which the drive assembly is housed. The upper end of the housing 8 has an opening, and the first armrest component 1 is movably connected to the opening. The second armrest component 2 and the third armrest component 3 are both located above the opening.

[0042] In this embodiment, the housing 8 is covered with a soft-pack structure. The housing 8, the drive assembly, and the armrest assembly form an integrated module, which facilitates overall installation on the sofa body, simplifyes manufacturing, and enhances versatility.

[0043] like Figure 1 As shown, optionally, an annular top cover 81 is connected to the opening, and the top cover 81 is fixedly connected to the housing 8. The first handrail component 1 is columnar.

[0044] In this embodiment, the top cover 81 serves a decorative purpose and also partially covers the gap between the first handrail piece 1 and the opening, providing a certain dustproof effect and preventing external debris from falling into the gap.

[0045] Another embodiment of this utility model provides a sofa, including the armrest adjustment mechanism described above.

[0046] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0047] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and 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 this disclosure.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0050] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A handrail adjustment mechanism, characterized by, It includes a drive assembly and a handrail assembly. The handrail assembly includes a first handrail piece (1), a second handrail piece (2), and a third handrail piece (3). The drive assembly connects to and drives the first handrail piece (1) to rise and fall. The second handrail piece (2) and the first handrail piece (1) are connected to move back and forth. The third handrail piece (3) and the second handrail piece (2) are connected to rotate.

2. The armrest adjustment mechanism of claim 1, wherein, The first handrail component (1) is provided with a first sliding groove (11), and the bottom of the second handrail component (2) is provided with a slider (21). The slider (21) and the first sliding groove (11) are slidably connected. The bottom of the slider (21) is connected to a limiting block (22). The width of the limiting block (22) is greater than the width of the first sliding groove (11). The upper limit of the side wall of the first sliding groove (11) in the vertical direction is located between the second handrail component (2) and the limiting block (22).

3. The armrest adjustment mechanism of claim 1, wherein, The second handrail member (2) is provided with a connecting seat (23), and the connecting seat (23) is provided with an arc-shaped second sliding groove (231). The bottom of the third handrail member (3) is provided with a connecting shaft (31), and the connecting shaft (31) is limited in the second sliding groove (231) and slidably connected to the second sliding groove (231).

4. The armrest adjustment mechanism of claim 1, wherein, The drive assembly includes a screw (4), a connector (5), and a drive component. The drive component connects to and drives the screw (4) to rotate. The connector (5) has a connecting part (51), which is threadedly connected to the screw (4). The connector (5) and the screw (4) are slidably connected vertically. When the connector (5) is fixed, one end of the screw (4) is connected to the handrail assembly and drives the handrail assembly to rise and fall. When the screw (4) is fixed in the vertical direction, the connector (5) connects to the handrail assembly and drives the handrail assembly to rise and fall.

5. A mechanism according to claim 4, wherein The drive assembly also includes a drive housing (6), in which the drive member and the screw (4) are both housed. A clearance opening (61) is provided on the side wall of the drive housing (6). The connecting part (51) passes through the clearance opening (61) and is slidably connected to the clearance opening (61) up and down. The connecting member (5) is sleeved on the drive housing (6) and is slidably connected to the drive housing (6) up and down.

6. A mechanism according to claim 5, wherein The drive assembly also includes a fixing frame (7), which has a third sliding groove (71) and a sliding block (62) on the drive housing (6). The sliding block (62) and the third sliding groove (71) are slidably connected vertically.

7. The armrest adjustment mechanism of claim 5, wherein, The first handrail component (1) is provided with a limiting groove (12), and the drive housing (6) is limited in the limiting groove (12).

8. The armrest adjustment mechanism of claim 1, wherein, It also includes a housing (8), in which the drive assembly is housed. The upper end of the housing (8) has an opening. The first handrail (1) is movably connected to the opening. The second handrail (2) and the third handrail (3) are both located above the opening.

9. A mechanism according to claim 8, wherein, The opening is connected with a ring-shaped top cover (81), the top cover (81) and the shell (8) are fixedly connected, and the first handrail piece (1) is columnar.

10. A sofa, characterized in that An armrest adjustment mechanism as claimed in any of claims 1 to 9.

Images