Shank linkage device and massage chair

Abstract

According to the shank linkage device and the massage chair, a seat plate device is driven by external force to rotate clockwise or anticlockwise, so that a first connecting rod and a second connecting rod are driven to rotate, and a pushing part is pushed by the second connecting rod to rotate around the seat plate device, so that a shank part is pushed to ascend and descend. The backrest frame is driven to rotate through rotation of the backrest frame, a four-connecting-rod mechanism does not need to be additionally arranged, compared with an existing common technical scheme, the material cost and the manual assembly cost are reduced, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the field of massage chair devices, in particular to a calf linkage device and a massage chair. Background Art

[0002] The massage chairs currently on the market all use the swinging principle of a four-bar linkage to lift and lower the calf. There are two specific implementation methods: 1) a push rod is provided to provide a separate power, which is applied to one side of the connecting rod, thereby pushing the calf on the other side of the connecting rod; 2) the connecting rod is hinged to the backrest frame, and the movement of the backrest frame in the guide rail is used as power to drive the swing of the connecting rod, thereby driving the calf installed on the connecting rod to rise and fall. However, the above two methods have certain defects. The former requires the setting of an independent push rod structure, and the latter requires the additional construction of a four-bar linkage mechanism, resulting in an increase in material costs and labor assembly costs. Utility Model Content

[0003] In view of the shortcomings of the background technology, the purpose of the present invention is to provide a calf linkage device and a massage chair.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A calf linkage device includes a frame and a seat plate device, one end of the seat plate device is pivoted to the two sides of the frame, and the two sides of the frame are also pivoted with connecting rod devices, the end of the connecting rod device is fixedly connected to a pushing part, and the pushing part is pivoted to the other end of the seat plate device. The connecting rod device includes a first connecting rod and a second connecting rod pivoted to each other, the end of the first connecting rod is pivoted to the frame, and the end of the second connecting rod is fixedly connected to the pushing part.

[0006] Furthermore, a limiting portion is provided on the side of one end of the second connecting rod pivotally connected to the first connecting rod, so as to abut against the side of the first connecting rod when the second connecting rod rotates relative to the first connecting rod.

[0007] Furthermore, the seat plate device includes a cross bar, and both ends of the cross bar are fixedly connected with connecting parts, and the two connecting parts are respectively pivotally connected to the two sides of the frame.

[0008] Furthermore, the connecting portion includes a connecting rod and a pivot plate which are fixedly connected to each other, the connecting rod is fixedly connected to the cross bar, and the pivot plate is pivotally connected to the frame.

[0009] Furthermore, an anti-collision block is provided at the bottom of the connecting rod, and the frame is provided with a plug for abutting against the anti-collision block.

[0010] Furthermore, the cross bar is provided with an ear seat, and one end of the pushing portion is pivotally connected to the ear seat.

[0011] Furthermore, the other end of the pushing portion is provided with a roller for movably abutting against the calf, and both sides of the pushing portion are fixedly connected to the second connecting rod through a fixing rod.

[0012] Furthermore, the cross bar is also provided with a hanging ear for pivotally connecting the calf.

[0013] Furthermore, an anti-sliding block is provided at the bottom of the frame, and a pulley is provided at the rear end of the frame.

[0014] A massage chair comprises a backrest frame and a calf linkage device as described above, wherein the backrest frame is provided with a guide rail and a movement movably adapted to the guide rail, the backrest frame is pivotally connected to the frame on both sides, and the rotating axis of the backrest frame is coaxially connected to the rotating axis of the seat plate device, and the connecting rod device is located on both sides of the backrest frame.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model proposes a calf linkage device, which drives the seat plate device to rotate clockwise or counterclockwise by external force, thereby driving the first connecting rod and the second connecting rod to rotate, and the second connecting rod pushes the pushing part to rotate around the seat plate device, thereby pushing the calf part to rise and fall. The linkage device does not need to set a push rod separately, and drives the backrest frame to rotate by rotating the backrest frame. There is no need to add a four-bar linkage mechanism. Compared with the existing common technical solutions, the material cost and labor assembly cost are reduced, and its scope of application is expanded.

[0017] 2. In a calf linkage device proposed by the utility model, a limiting portion is provided on the side of one end of the second connecting rod pivotally connected to the first connecting rod, which is used to abut against the side of the first connecting rod during the rotation of the second connecting rod relative to the first connecting rod, thereby preventing the second connecting rod from crossing the dead point during the rotation of the second connecting rod relative to the first connecting rod, causing an installation hazard in which the calf cannot be normally reset.

[0018] 3. A calf linkage device proposed by the utility model has an anti-collision block at the bottom of the connecting rod, and a frame is provided with a plug for abutting and matching with the limit block to avoid direct abutment and matching between the connecting rod and the frame, thereby avoiding friction between the two metal parts and extending the service life of the connecting rod and the frame.

[0019] 4. The utility model proposes a calf linkage device, the bottom of the frame is provided with an anti-slip block, which increases the anti-slip property of the frame during use and can effectively protect the ground; the rear end of the frame is provided with a pulley to facilitate the operator to carry it.

[0020] 5. The massage chair proposed by the utility model includes a backrest frame, and the connecting rod device is located on both sides of the backrest frame. The space can be compatible with the L-shaped guide rail back frame, and the movement can move to the front end of the L-shaped guide rail without affecting the movement's travel range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of a calf linkage device of the utility model;

[0023] Figure 2 It is a side view of a calf linkage device of the utility model;

[0024] Figure 3 It is a schematic diagram of the working position of a calf linkage device of the utility model;

[0025] Figure 4 It is a schematic diagram of a connecting rod device of a calf linkage device of the utility model;

[0026] Figure 5 It is a schematic diagram of a second connecting rod of a calf linkage device of the utility model;

[0027] Figure 6 A schematic diagram of the mechanical principle of a calf linkage device of the utility model;

[0028] Figure 7 It is a schematic diagram of a massage chair of the utility model;

[0029] Figure 8 This is a top view of a massage chair of the utility model;

[0030] In the figure, 10, frame; 201, cross bar; 2011, ear seat; 2012, hanging ear; 202, connecting rod; 203, pivot plate; 301, first connecting rod; 302, second connecting rod; 3021, limit part; 40, push part; 50, calf part; 60, anti-collision block; 70, plug; 80, roller; 90, fixing rod; 100, anti-sliding block; 110, pulley; 120, backrest frame; 130, guide rail; 140, movement. DETAILED DESCRIPTION

[0031] Combine the following Figure 1-8 The utility model is described in detail.

[0032] A calf linkage device includes a frame 10 and a seat plate device, one end of the seat plate device is pivoted to the two sides of the frame 10, and the two sides of the frame 10 are also pivoted with connecting rod devices, the end of the connecting rod device is fixedly connected to a pushing portion 40, and the pushing portion 40 is pivoted to the other end of the seat plate device. The connecting rod device includes a first connecting rod 301 and a second connecting rod 302 pivoted to each other, the end of the first connecting rod 301 is pivoted to the frame 10, and the end of the second connecting rod 302 is fixedly connected to the pushing portion 40.

[0033] Therefore, the seat plate device is driven to rotate clockwise or counterclockwise by external force, thereby driving the first connecting rod 301 and the second connecting rod 302 to rotate, and the second connecting rod 302 pushes the pushing part 40 to rotate around the seat plate device, thereby pushing the calf part 50 to rise and fall. The linkage device does not need to set a separate push rod, and drives the backrest frame 120 to rotate by rotating the backrest frame 120. There is no need to add a four-bar linkage mechanism. Compared with the existing common technical solutions, the material cost and labor assembly cost are reduced, which expands its scope of application.

[0034] In this embodiment, a limiting portion 3021 is provided on the side of one end of the second connecting rod 302 pivotally connected to the first connecting rod 301, which is used to abut against the side of the first connecting rod 301 during the rotation of the second connecting rod 302 relative to the first connecting rod 301, and is used to abut against the side of the first connecting rod 301 during the rotation of the second connecting rod 302 relative to the first connecting rod 301, so as to prevent the second connecting rod 302 from crossing the dead point during the rotation relative to the first connecting rod 301, thereby causing an installation hazard in which the calf part 50 cannot be normally reset.

[0035] In this embodiment, the seat plate device includes a cross bar 201, and the two ends of the cross bar 201 are fixedly connected with connecting parts, and the two connecting parts are respectively pivoted to the two sides of the frame 10. Further, the connecting part includes a connecting rod 202 and a pivot plate 203 that are fixedly connected to each other, the connecting rod 202 is fixedly connected to the cross bar 201, and the pivot plate 203 is pivoted to the frame 10. The bottom of the connecting rod 202 is provided with an anti-collision block 60, and the frame 10 is provided with a plug 70 for abutting the anti-collision block 60, so as to avoid the direct abutment and cooperation between the connecting rod 202 and the frame 10, thereby avoiding friction between the two metal parts and extending the service life of the connecting rod 202 and the frame 10.

[0036] In this embodiment, the cross bar 201 is provided with an ear seat 2011, one end of the push portion 40 is pivotally connected to the ear seat 2011, the other end of the push portion 40 is provided with a roller 80 for movably abutting against the calf portion 50, and both sides of the push portion 40 are fixedly connected to the second connecting rod 302 through a fixing rod 90. Further, the cross bar 201 is also provided with a hanging ear 2012 for pivotally connecting the calf portion 50.

[0037] In this embodiment, an anti-slip block 100 is provided at the bottom of the frame 10 to increase the anti-slip property of the frame 10 during use and effectively protect the ground; a pulley 110 is provided at the rear end of the frame 10 to facilitate the operator's transportation.

[0038] The working principle of the calf linkage device proposed by the utility model is as follows:

[0039] like Figure 6 As shown, an external force drives the seat plate assembly to rotate counterclockwise and generates a torque M1, thereby driving the first link 301 and the second link 302 to rotate, and then the second link 302 pushes the pushing part 40 to rotate counterclockwise, so that the pushing part 40 generates a torque M2, and then the pushing calf part 50 rotates counterclockwise to generate a torque M3, thereby realizing the rise of the calf part 50; similarly, an external force drives the seat plate assembly to rotate clockwise and generates a torque M1', thereby driving the first link 301 and the second link 302 to rotate, and then the second link 302 pushes the pushing part 40 to rotate clockwise, so that the pushing part 40 generates a torque M2', and then the pushing calf part 50 rotates clockwise to generate a torque M3', thereby realizing the descent of the calf.

[0040] The utility model also proposes a massage chair, including a backrest frame 120, including a calf linkage device as described above, the backrest frame 120 is provided with a guide rail 130 and a movement 140 movably adapted to the guide rail 130, both sides of the backrest frame 120 are pivotally connected to the frame 10, and the rotation axis of the backrest frame 120 is coaxially connected to the rotation axis of the seat plate device, the connecting rod device is located on both sides of the backrest frame 120, and can be compatible with the L-shaped guide rail 130 back frame in space, and the movement 140 can move to the front end of the L-shaped guide rail 130 without affecting the walking range of the movement 140.

[0041] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A calf linkage device, comprising a frame, characterized in that: It also includes a seat plate device, one end of which is pivotally connected to both sides of the frame, and connecting rod devices are also pivotally connected to both sides of the frame. The end of the connecting rod device is fixedly connected to a pushing portion, and the pushing portion is pivotally connected to the other end of the seat plate device. The connecting rod device includes a first connecting rod and a second connecting rod pivotally connected to each other, the end of the first connecting rod is pivotally connected to the frame, and the end of the second connecting rod is fixedly connected to the pushing portion.

2. A calf linkage device as claimed in claim 1, characterized in that: A limiting portion is provided on the side of one end of the second connecting rod pivotally connected to the first connecting rod, so as to abut against the side of the first connecting rod during the rotation of the second connecting rod relative to the first connecting rod.

3. A calf linkage device as claimed in claim 2, characterized in that: The seat plate device comprises a cross bar, both ends of which are fixedly connected with connecting parts, and the two connecting parts are respectively pivotally connected to the two sides of the frame.

4. A calf linkage device as claimed in claim 3, characterized in that: The connecting portion comprises a connecting rod and a pivot plate which are fixedly connected to each other, the connecting rod is fixedly connected to the cross bar, and the pivot plate is pivotally connected to the frame.

5. A calf linkage device as claimed in claim 4, characterized in that: An anti-collision block is provided at the bottom of the connecting rod, and a plug for abutting against the anti-collision block is provided on the frame.

6. A calf linkage device as claimed in claim 3, characterized in that: The cross bar is provided with an ear seat, and one end of the pushing portion is pivotally connected to the ear seat.

7. A calf linkage device as claimed in claim 6, characterized in that: The other end of the pushing part is provided with a roller for movably contacting the calf, and both sides of the pushing part are fixedly connected to the second connecting rod through a fixing rod.

8. A calf linkage device as claimed in claim 3, characterized in that: The cross bar is also provided with a hanging ear for pivotally connecting the calf.

9. A calf linkage device according to any one of claims 1 to 8, characterized in that: The bottom of the frame is provided with an anti-sliding block, and the rear end of the frame is provided with a roller.

10. A massage chair, comprising a backrest frame, characterized in that: It comprises a calf linkage device as described in any one of claims 1 to 9, wherein the backrest frame is provided with a guide rail and a movement movably adapted to the guide rail, the backrest frame is pivotally connected to the frame on both sides, and the rotating axis of the backrest frame is coaxially connected to the rotating axis of the seat plate device, and the connecting rod device is located on both sides of the backrest frame.

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