Lifting armrest for sofa

Abstract

The utility model relates to a lifting armrest for a sofa, which comprises an armrest base, an armrest plate, a guide rod, an electric push rod, an armrest positioning and rotating component, a decorative component and a guide sleeve, the armrest base provides a mounting space and a supporting function, and the guide rod is mounted below the armrest plate; stable movement of the handrail is achieved through the arrangement of the decoration assembly and the guide sleeve, rotating adjustment of the handrail plate is achieved through the handrail rotating assembly, and the handrail device has the advantages of being easy to adjust, convenient to operate and high in practicability.

Description

Technical Field

[0001] The utility model relates to a supporting component of a seat, in particular to a lifting armrest for a sofa. Background Art

[0002] The ergonomic chair is very adaptable to the development of new trends in future furniture in terms of process design. It has good ventilation and heat dissipation characteristics, is comfortable and healthy, and can prevent the chair from generating a bacterial growth environment during use. It can also reduce the compression area of ​​the buttocks and back, press the acupuncture points at the stress point, promote blood circulation in the buttocks and back, avoid strain on the neck, shoulders and waist, and maintain a healthy body; the structure of the ergonomic chair includes a headrest, a chair back, a lumbar support and an armrest. Among them, the armrest is a relatively important part. The user supports the hand through the armrest, so that the person can relax and support better when using it, have better comfort, and let the user achieve a better user experience during use.

[0003] The armrests of traditional chairs are fixed and cannot be adjusted, which is inconvenient to use. Therefore, the improved armrests generally have a lifting function to facilitate people to adjust by themselves, but the armrests are not stable during the lifting process, and no armrest plate is provided or the armrest plate cannot be rotated. For example, a lifting armrest disclosed in CN 210383319 U uses a first hydraulic mechanism and a second hydraulic mechanism to achieve the lifting of the armrest, but the stability of the armrest during the lifting process cannot be guaranteed, and the user cannot achieve a better use experience, and it may also increase the failure rate in the later stage. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the background technology and provide a lifting armrest for a sofa.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A lifting armrest for a sofa, characterized in that it comprises an armrest base, an armrest plate, a guide rod, an electric push rod, an armrest positioning and rotating assembly and a decorative assembly;

[0007] The armrest base provides a mounting position for the armrest plate, the guide rod, the electric push rod, the armrest positioning and rotating assembly, and the decorative assembly;

[0008] A fixing frame is provided inside the armrest base, a guide sleeve is provided outside the fixing frame, and the guide sleeve is provided with a sleeve hole; a fixing frame connecting piece is provided at the bottom of the fixing frame; the armrest plate includes an upper armrest plate and a lower armrest plate; the lower armrest plate is provided with a lower armrest limiting hole; and a guide rod mounting opening is provided at the bottom of the lower armrest plate;

[0009] The guide rods are fixed in parallel by fixing plates, the top of the guide rods are connected with connecting plates, an electric push rod connecting plate is installed under the connecting plate, the bottom of the guide rods is installed in the sleeve hole of the guide sleeve, and the top of the guide rods is fixedly installed with the lower handrail plate through the guide rod installation opening and the connecting plate;

[0010] The bottom of the electric push rod is installed on the fixing frame through the fixing frame connecting piece; the top of the electric push rod is connected to the connecting plate through the electric push rod connecting piece.

[0011] Preferably, the lower armrest plate is also provided with a decorative component installation opening and a positioning spring clamp.

[0012] Preferably, the top and bottom of the electric push rod are both provided with electric push rod connection holes, and the electric push rod is hingedly connected to the connection plate and the fixing frame connection piece through the electric push rod connection holes.

[0013] Preferably, the armrest positioning and rotating assembly includes a rotating iron plate, a friction ring, an angle limiter and a rotating bolt; the rotating iron plate is installed under the upper armrest plate; the top of the rotating bolt is fixed to the rotating iron plate, and the bottom is arranged through the lower armrest limiting hole, and a control plane is arranged on the side of the rotating bolt; the friction ring is arranged between the lower armrest limiting hole and the rotating bolt; a socket and a flat mouth are provided in the middle of the angle limiter, a limiting stop block is provided on the outside of the angle limiter, the bottom of the rotating bolt is inserted into the socket of the angle limiter, the control plane is installed corresponding to the flat mouth, the end of the rotating bolt is fixed by a nut, and a limiting hole baffle is provided in the limiting hole of the lower armrest.

[0014] Preferably, a plurality of positioning holes matching the positioning spring chucks are provided at the bottom of the rotating iron plate.

[0015] Preferably, the decorative assembly includes a lifting decorative part and a decorative cover, and a lifting decorative part friction rib is arranged at the bottom of the lifting decorative part; the decorative cover is installed on the top of the armrest base, an anti-sway frame is arranged inside the decorative cover, the top of the lifting decorative part is fixed to the lower armrest plate, and the bottom of the lifting decorative part is installed inside the decorative cover.

[0016] Preferably, the guide sleeve and the lower guide sleeve, and the upper guide sleeve and the lower guide sleeve are arranged up and down along the height direction of the fixing frame.

[0017] Preferably, the sofa lift armrest can be applied to the field of sofa lift armrests.

[0018] In summary, the utility model has the following beneficial effects:

[0019] The utility model discloses a lifting armrest for a sofa, which realizes the limitation of the movement of the guide rods in the process of descending to the bottom end by setting the guide sleeves on the fixing frame, so that the guide rods can move in parallel with each other in the axial direction, thereby achieving a more stable effect.

[0020] The utility model discloses a lifting armrest for a sofa, which can reduce the shaking of the armrest by arranging the friction ribs and the anti-sway frame when the guide rod is extended to the longest position through the cooperation between the friction ribs and the inner wall of the anti-sway frame.

[0021] The novel lifting armrest for a sofa can adjust the position of the armrest plate by setting an armrest rotating component, so that users can have a better using experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the guide rod structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the handrail board in the utility model;

[0025] Figure 4 This is a schematic diagram of the assembly of the armrest positioning and rotating assembly in the utility model;

[0026] Figure 5 For this utility model Figure 4 The enlarged schematic diagram at A in the middle;

[0027] Figure 6 This is a schematic diagram of the rotation effect of the upper armrest of the utility model;

[0028] Figure 7 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0029] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0030] The present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] according to Figure 1-5 and Figure 7 As shown, a lifting armrest for a sofa includes an armrest base 1, an armrest plate 2, a guide rod 3, an electric push rod 4, an armrest positioning and rotating component 5 and a decorative component 6;

[0033] The armrest base 1 provides an installation position for the armrest plate 2, the guide rod 3, the electric push rod 4, the armrest positioning and rotating assembly 5 and the decorative assembly 6;

[0034] A fixing frame 11 is provided inside the armrest base 1, a guide sleeve 7 is provided outside the fixing frame 11, and a sleeve hole 73 is provided on the guide sleeve 7; a fixing frame connecting piece 111 is provided at the bottom of the fixing frame 11; the armrest plate 2 includes an upper armrest plate 21 and a lower armrest plate 22; the lower armrest plate 22 is provided with a lower armrest limiting hole 221; and a guide rod mounting opening 222 is provided at the bottom of the lower armrest plate 22;

[0035] The guide rods 3 are fixed in parallel by the fixing plate 31, the top of the guide rod 3 is connected with the connecting plate 32, the electric push rod connecting plate 321 is installed under the connecting plate 32, the bottom of the guide rod 3 is installed in the sleeve hole 73 of the guide sleeve 7, and the top of the guide rod 3 is fixedly installed with the lower handrail plate 22 through the guide rod installation opening 222 and the connecting plate 32;

[0036] The bottom of the electric push rod 4 is mounted on the fixing frame 11 through the fixing frame connecting piece 111 ; the top of the electric push rod 4 is connected to the connecting plate 32 through the electric push rod connecting piece 321 .

[0037] The lower armrest plate 22 is also provided with a decoration installation opening 223 and a positioning spring clamp 224 .

[0038] The top and bottom of the electric push rod 4 are both provided with electric push rod connection holes 41 , and the electric push rod 4 is hingedly connected to the connection plate 32 and the fixing frame connection piece 111 through the electric push rod connection holes 41 .

[0039] The armrest positioning and rotating assembly 5 includes a rotating iron plate 51, a friction ring 52, an angle limiter 53 and a rotating bolt 54; the rotating iron plate 51 is installed under the upper armrest plate 21; the top of the rotating bolt 54 is fixed to the rotating iron plate 51, and the bottom is arranged through the lower armrest limit hole 221, and a control plane 541 is arranged on the side of the rotating bolt 54; the friction ring 52 is arranged between the lower armrest limit hole 221 and the rotating bolt 54; a socket and a flat mouth 531 are arranged in the middle of the angle limiter 53, and a limit stopper 532 is arranged on the outer side of the angle limiter 53, the bottom of the rotating bolt 54 is inserted into the socket of the angle limiter 53, the control plane 541 and the flat mouth 531 are installed correspondingly, the end of the rotating bolt 54 is fixed by a nut, and a limit hole baffle 2211 is arranged in the lower armrest limit hole 221.

[0040] A plurality of positioning holes 511 matching with the positioning spring clamps 224 are provided at the bottom of the rotating iron plate 51 .

[0041] When the handrail of the utility model rises, the electric push rod 4 pushes up the connecting plate 32 at the top of the lifting guide rod 3 to raise the handrail board 2; when the handrail of the utility model rises and falls, the electric push rod 4 pulls down the connecting plate 32 at the top of the lifting guide rod 3 to lower the handrail board 2.

[0042] according to Figure 3-Figure 6 As shown, the upper armrest plate 21 and the lower armrest plate 22 are rotated and positioned by the armrest positioning rotating assembly 5. When the upper armrest plate 21 rotates, it drives the rotating iron plate 51 and the rotating bolt 54 to rotate together, and the angle limiter 53 also rotates together with the cooperation of the control plane 541 and the flat mouth 531. Under the action of the limiting hole baffle 2211 and the limiting block 532, the maximum rotation angle of the upper armrest plate 21 is limited. When the upper armrest plate 21 needs to be positioned, the upper armrest plate 21 is locked in the required gear position through the positioning spring clamp 224 and the positioning hole 511.

[0043] Example 2

[0044] according to Figure 6 As shown, the difference from the above-mentioned embodiment 1 is that the decorative assembly 6 includes a lifting decorative piece 61 and a decorative cover 62, and a lifting decorative piece friction rib 611 is provided at the bottom of the lifting decorative piece 61; the decorative cover 62 is installed on the top of the armrest base 1, and an anti-sway frame 621 is provided in the decorative cover 62. The top of the lifting decorative piece 61 is fixed to the lower armrest plate 22, and the bottom of the lifting decorative piece 61 is installed in the decorative cover 62. The guide sleeve 7 includes an upper guide sleeve 71 and a lower guide sleeve 72, and the upper guide sleeve 71 and the lower guide sleeve 72 are arranged up and down along the height direction of the fixing frame 11.

[0045] In this embodiment, when the armrest rises, when the bottom of the lifting guide rod 3 is separated from the lower guide sleeve 72, the friction rib 611 is just buckled into the anti-sway frame 621 in the decorative cover 62 to prevent sway; in this embodiment, when the armrest is lowered, when the friction rib 611 is separated from the anti-sway frame 621 in the decorative cover 62, the bottom of the lifting guide rod 3 is inserted into the lower guide sleeve 72 to prevent sway.

Claims

1. A lifting armrest for a sofa, characterized in that: It comprises an armrest base (1), an armrest plate (2), a guide rod (3), an electric push rod (4), an armrest positioning and rotating component (5) and a decorative component (6); The armrest base (1) provides a mounting position for the armrest plate (2), the guide rod (3), the electric push rod (4), the armrest positioning rotation assembly (5) and the decorative assembly (6); The armrest base (1) is provided with a fixing frame (11) inside, a guide sleeve (7) is provided outside the fixing frame (11), and the guide sleeve (7) is provided with a sleeve hole (73); a fixing frame connecting piece (111) is provided at the bottom of the fixing frame (11); the armrest plate (2) comprises an upper armrest plate (21) and a lower armrest plate (22); the lower armrest plate (22) is provided with a lower armrest limiting hole (221); and a guide rod mounting opening (222) is provided at the bottom of the lower armrest plate (22); The guide rods (3) are fixed in parallel via fixing plates (31); the top of the guide rods (3) is connected to a connecting plate (32); an electric push rod connecting plate (321) is installed below the connecting plate (32); the bottom of the guide rod (3) is installed in the sleeve hole (73) of the guide sleeve (7); the top of the guide rod (3) is fixedly installed with the lower armrest plate (22) via the guide rod installation opening (222) and the connecting plate (32); The bottom of the electric push rod (4) is mounted on the fixing frame (11) via the fixing frame connecting piece (111); the top of the electric push rod (4) is connected to the connecting plate (32) via the electric push rod connecting piece (321).

2. The sofa lift armrest according to claim 1, characterized in that: The lower armrest plate (22) is also provided with a decorative component installation opening (223) and a positioning spring clamp (224).

3. The sofa lift armrest according to claim 1, characterized in that: The top and bottom of the electric push rod (4) are both provided with electric push rod connection holes (41), and the electric push rod (4) is hingedly connected to the connection plate (32) and the fixing frame connection piece (111) through the electric push rod connection holes (41).

4. The sofa lift armrest according to claim 2, characterized in that: The armrest positioning rotation assembly (5) comprises a rotating iron plate (51), a friction ring (52), an angle limiter (53) and a rotating bolt (54); the rotating iron plate (51) is mounted under the upper armrest plate (21); the rotating bolt (54) is fixed to the rotating iron plate (51) at the top and is arranged to pass through the lower armrest limiter hole (221) at the bottom; a control plane (541) is arranged on the side of the rotating bolt (54); the friction ring (52) is arranged in the lower armrest limiter hole (221); ) and the rotating bolt (54); a socket and a flat mouth (531) are provided in the middle of the angle limiter (53), a limit stopper (532) is provided on the outer side of the angle limiter (53), the bottom of the rotating bolt (54) is inserted into the socket of the angle limiter (53), the control plane (541) is installed corresponding to the flat mouth (531), the end of the rotating bolt (54) is fixed by a nut, and a limit hole baffle (2211) is provided in the lower handrail limit hole (221).

5. The sofa lift armrest according to claim 4, characterized in that: A plurality of positioning holes (511) matching the positioning spring clamps (224) are provided at the bottom of the rotating iron plate (51).

6. The sofa lift armrest according to claim 1, characterized in that: The decorative component (6) comprises a lifting decorative piece (61) and a decorative cover (62); a lifting decorative piece friction rib (611) is arranged at the bottom of the lifting decorative piece (61); the decorative cover (62) is mounted on the top of the armrest base (1); an anti-sway frame (621) is arranged inside the decorative cover (62); the top of the lifting decorative piece (61) is fixed to the lower armrest plate (22); and the bottom of the lifting decorative piece (61) is mounted inside the decorative cover (62).

7. The sofa lift armrest according to claim 1, characterized in that: The guide sleeve (7) comprises an upper guide sleeve (71) and a lower guide sleeve (72), and the upper guide sleeve (71) and the lower guide sleeve (72) are arranged vertically along the height direction of the fixing frame (11).

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