Four-connecting-rod swing lifting mechanism applied to leisure chair

Abstract

The utility model discloses a four-connecting-rod swing lifting mechanism applied to a leisure chair, which comprises a seat frame and a bottom frame, and further comprises a swing lifting structure arranged between the seat frame and the bottom frame, the swing lifting structure comprises a supporting connecting rod frame rotationally connected to the bottom frame, a front connecting rod rotationally connected between the seat frame and the bottom frame, and a rear connecting rod rotationally connected between the seat frame and the bottom frame. The middle connecting rod is rotationally connected between the seat frame and the supporting connecting rod frame, the two ends of the driving cylinder are rotationally installed between the seat frame and the supporting connecting rod frame respectively, and the driving cylinder can drive the supporting connecting rod frame, the front connecting rod, the rear connecting rod and the middle connecting rod to swing so as to achieve front-back and up-down swinging of the seat frame relative to the bottom frame. The swing lifting structure is arranged, front-back and up-down swing of the seat frame relative to the bottom frame can be achieved through the action of the driving cylinder, the structural design is reasonable, driving control is convenient, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to leisure massage chair technical field more specifically, relate to a four connecting rod swing lift mechanism for leisure chair. BACKGROUND

[0002] CN216168733U discloses a sitting posture adjustable slide lying type massage chair, including: base frame, each support frame is equipped with linear extension slide; seat frame, seat frame includes mutually hinged backrest frame and sitting frame, backrest frame is equipped with the roller that rolls with the slide on the side along the massage chair height direction;Support mechanism, support mechanism includes front crank frame and rear crank frame, front crank frame is hinged along the relative both sides in the direction of its support with pad base frame and sitting frame, rear crank frame is hinged along the relative both sides in the direction of its support with pad base frame and backrest frame;Drive device, drive device is used to drive front crank frame or rear crank frame to swing relative to pad base frame. The above-mentioned scheme can only adopt single power source, make the weight of the user that seat frame can bear greater, make the change process between the upright state and the lying state more stable, make full use of indoor space, the connection structure between seat frame and base frame is more simplified.

[0003] However, the massage chair of the above-mentioned scheme only changes the upright state and the lying state of the seat frame by single power source, and cannot realize the swing and lifting adjustment of the sitting frame. SUMMARY

[0004] The utility model overcomes the insufficient of prior art, provides a four connecting rod swing lift mechanism for leisure chair, through setting up swing lift structure, through the action of drive cylinder can realize the seat frame swing before and after, up and down relative to the bottom frame, the structure design is reasonable, is convenient for drive control, and the practicality is good.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A four connecting rod swing lift mechanism for leisure chair, including seat frame and bottom frame, also includes the swing lift structure that is located between seat frame and bottom frame, swing lift structure includes the support link frame that is rotationally connected to bottom frame, the front connecting rod that is rotationally connected between seat frame and bottom frame, the rear connecting rod that is rotationally connected between seat frame and bottom frame, the intermediate connecting rod that is rotationally connected between seat frame and support link frame and drive cylinder that is rotationally installed between seat frame and support link frame at two ends, drive cylinder can drive support link frame, front connecting rod, rear connecting rod and intermediate connecting rod swing, to realize the seat frame swing before and after and up and down relative to bottom frame.

[0007] Preferably, the front connecting rod and the rear connecting rod have a height difference, and the intermediate connecting rod is located between the front connecting rod and the rear connecting rod.

[0008] Preferably, the bottom frame comprises a bottom beam and connecting arms fixedly connected to both sides of the bottom beam.

[0009] Preferably, the support connecting rod frame is rotationally connected to the connecting arms, and the front connecting rod and the rear connecting rod are both rotationally connected between the seat frame and the connecting arms.

[0010] Preferably, the seat frame is fixedly provided or integrally provided with a first support, and the support connecting rod frame is fixedly provided or integrally provided with a second support, and both ends of the driving cylinder are rotationally installed on the first support and the second support, respectively.

[0011] Preferably, the bottom beam is fixedly provided with a mounting frame, and the mounting frame is fixedly connected with a support column frame below.

[0012] The utility model discloses the beneficial effects: the utility model discloses through setting up swing structure, through the action of driving cylinder can realize seat frame's front and back, up and down swing relative to bottom frame, and the structure design is reasonable, and the driving control is convenient, and the practicality is good. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 For the state of the specific embodiment of the utility model Figure 1 ;

[0014] Figure 2 For the state of the specific embodiment of the utility model Figure 2 .

[0015] In the drawing: 1, seat frame;2, bottom frame;21, bottom beam;22, connecting arm;3, swing structure;31, support connecting rod frame;32, front connecting rod;33, rear connecting rod;34, middle connecting rod;35, driving cylinder;4, first support;5, second support;6, mounting frame;7, support column frame. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0017] For example Figures 1-2As shown, a four-link swing-up mechanism for a leisure chair includes a seat frame 1 and a bottom frame 2, and also includes a swing-up structure 3 arranged between the seat frame 1 and the bottom frame 2. The swing-up structure 3 includes a support link frame 31 rotatably connected to the bottom frame 2, a front link 32 rotatably connected between the seat frame 1 and the bottom frame 2, a rear link 33 rotatably connected between the seat frame 1 and the bottom frame 2, an intermediate link 34 rotatably connected between the seat frame 1 and the support link frame 31, and a driving cylinder 35 rotatably installed at both ends between the seat frame 1 and the support link frame 31. The driving cylinder 35 can drive the support link frame 31, the front link 32, the rear link 33 and the intermediate link 34 to swing, so as to realize the seat frame 1 relative to the bottom The frame 2 swings forward and backward and up and down; there is a height difference between the front link 32 and the rear link 33, and the position of the middle link 34 is between the front link 32 and the rear link 33; the bottom frame 2 includes a bottom beam 21 and a connecting arm 22 fixedly connected to both sides of the bottom beam 21; the supporting link frame 31 is rotatably connected to the connecting arm 22, and the front link 32 and the rear link 33 are both rotatably connected between the seat frame 1 and the connecting arm 22; a first bracket 4 is fixed or integrally provided on the seat frame 1, a second bracket 5 is fixed or integrally provided on the supporting link frame 31, and the two ends of the driving cylinder 35 are rotatably installed on the first bracket 4 and the second bracket 5 respectively; a mounting frame 6 is fixed on the bottom beam 21, and a support column frame 7 is fixedly connected below the mounting frame 6.

[0018] By adopting the above technical solution, in the present invention, a swing-lift structure 3 is provided. Specifically, the swing-lift structure 3 includes a support link frame 31 connected to the connecting arm 22, a front link 32 and a rear link 33 connected between the connecting arm 22 and the seat frame 1, an intermediate link 34 connected between the support link frame 31 and the seat frame 1, and a drive cylinder 35 installed between the seat frame 1 and the support link frame 31. There is a height difference between the front link 32 and the rear link 33, and the intermediate link 34 is located between the front link 32 and the rear link 33. In this way, when the drive cylinder 35 repeatedly extends and retracts, the seat frame 1 can swing up and down and forward and backward relative to the base frame 2, wherein the base frame 2 is fixed to the ground.

[0019] Furthermore, by providing the first bracket 4 and the second bracket 5 , it is convenient to realize the hinge connection of both ends of the driving cylinder 35 . Specifically, the driving cylinder 35 can be an electric cylinder.

[0020] Furthermore, by providing a mounting frame 6 connected to the bottom beam 21 , the support column frame 7 is connected to the bottom beam 21 through the mounting frame 6 , thereby making the overall structural strength higher and ensuring the stable support of the bottom frame 2 .

[0021] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A four-link swing-lift mechanism for a leisure chair, comprising a seat frame (1) and a bottom frame (2), characterized in that: The invention also includes a swing-lift structure (3) arranged between the seat frame (1) and the bottom frame (2). The swing-lift structure (3) includes a support link frame (31) rotatably connected to the bottom frame (2), a front link (32) rotatably connected between the seat frame (1) and the bottom frame (2), a rear link (33) rotatably connected between the seat frame (1) and the bottom frame (2), an intermediate link (34) rotatably connected between the seat frame (1) and the support link frame (31), and a driving cylinder (35) rotatably mounted at both ends between the seat frame (1) and the support link frame (31). The driving cylinder (35) can drive the support link frame (31), the front link (32), the rear link (33) and the intermediate link (34) to swing, so as to realize the front-back and up-down swinging of the seat frame (1) relative to the bottom frame (2).

2. The four-link swing-lift mechanism for a leisure chair according to claim 1, characterized in that: There is a height difference between the front link (32) and the rear link (33), and the position of the intermediate link (34) is between the front link (32) and the rear link (33).

3. A four-link swing-lift mechanism for a leisure chair according to claim 1 or 2, characterized in that: The bottom frame (2) comprises a bottom beam (21) and connecting arms (22) fixedly connected to both sides of the bottom beam (21).

4. The four-link swing-lift mechanism for a leisure chair according to claim 3, characterized in that: The supporting link frame (31) is rotatably connected to the connecting arm (22), and the front connecting rod (32) and the rear connecting rod (33) are both rotatably connected between the seat frame (1) and the connecting arm (22).

5. The four-link swing-lift mechanism for a leisure chair according to claim 4, characterized in that: A first bracket (4) is fixed or integrally provided on the seat frame (1), a second bracket (5) is fixed or integrally provided on the supporting connecting rod frame (31), and both ends of the driving cylinder (35) are rotatably mounted on the first bracket (4) and the second bracket (5), respectively.

6. The four-link swing-lift mechanism for a leisure chair according to claim 4, characterized in that: A mounting frame (6) is fixed on the bottom beam (21), and a support column frame (7) is fixedly connected below the mounting frame (6).

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