An extendable massage swing arm mechanism

Abstract

The present invention relates to an extendable massage rocker arm mechanism, in particular to a rocker arm mechanism of a massage movement. It includes a static bracket and a moving bracket that are respectively used for assembling two massage units and are in rotational or sliding fit, and also includes a locking mechanism for limiting the static bracket and the moving bracket. In the present invention, the brackets for installing the two massage units are made into a split type, and the massage units are presented at various angles by using a rotating and extending structure. The optimized structure forms two gears and three gears. Among them, for the massage of the neck and shoulders, the acting point of the massage can be elongated to better massage the neck and shoulders. In addition, a rest gear is also provided, which can be stored in a state without massage, so that the massage unit does not protrude from the kneading layer of the massage chair, enabling people to rest better. In addition, optimization designs such as buffering are made to enhance stability. The present invention also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicability.

Description

Technical Field

[0001] The present invention relates to a rocker arm mechanism, and particularly to an extendable massage rocker arm mechanism. Background Art

[0002] The massage wheels of massage chairs on the market are all installed on an integrated rocker arm mounting frame. Although the massage wheels can provide swinging or forward and backward tilting to massage the human back while walking or massaging, the back of the human body is an ideal curved surface, so the massage wheels can fully cope with it. However, the positions of the human neck and shoulders are not on the same curved surface as the back, and the massage wheels are limited on the mounting frame, so the massage wheels simply cannot reach the neck and shoulder positions. Therefore, neck and shoulder massage has always been a difficult point in massage. How to effectively solve the neck and shoulder massage of massage chairs is the technical problem we need to solve at present. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the present invention provides an extendable massage rocker arm mechanism.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: an extendable massage rocker arm mechanism, characterized in that it includes a static support and a moving support respectively used for assembling two massage units and rotatably or slidably matched, and further includes a locking mechanism for limiting the static support and the moving support. The two massage units form at least one gear for extending the massage effect through the mutual cooperation among the moving support, the static support and the locking mechanism.

[0005] An arc-shaped first guide groove is provided on the moving support, and a guide block adapted to the first guide groove and having a straight-line movement path is provided on the static support. The static support and the moving support achieve rotational cooperation through the cooperation of the first guide groove and the guide block.

[0006] A bending portion for limiting the guide block is provided in the middle of the first guide groove. The guide block forms a gear through the two ends and the bending portion of the first guide groove.

[0007] A limiting device with elastic restoring force is provided on the static support, and a limiting hole cooperating with the limiting device is provided on the moving support. The limiting device and the limiting hole are opened and closed through the rotational cooperation of the static support and the moving support. When the guide block is in the bending portion, the static support and the moving support are limited through the cooperation of the limiting device and the limiting hole.

[0008] The limiting device includes a rolling member adapted to the limiting hole. A card slot for assembling the rolling member is provided on the static support, and a first elastic mechanism for forcing the rolling member to move towards the moving support is provided in the card slot. The rolling member elastically presses the moving support through the cooperation of the first elastic mechanism.

[0009] It includes a second elastic mechanism for increasing the rotation fit angle, and the static support and the moving support are elastically supported through the cooperation of the second elastic mechanism.

[0010] A second guiding groove for accommodating the moving support is provided on the static support, a guiding block with a straight line as the movement path is provided on the moving support, and a limiting groove adapted to the guiding block is provided on the static support. The moving support and the static support achieve limited reciprocating movement in the second guiding groove through the cooperation of the limiting groove and the guiding block.

[0011] It includes a massage mechanism core. The static support and the massage mechanism core are rotationally fitted through a rotating shaft. An included angle is formed between the two massage units and the rotating shaft. The length extension direction of the second guiding groove has a straight-line setting for maintaining the included angle.

[0012] The length extension direction of the second guiding groove is arc-shaped. The two massage units form opposite and back arc-shaped movement paths through the cooperation of the second guiding groove.

[0013] The locking mechanism includes a driving rod for the reciprocating movement and limitation of the guiding block. The guiding block forms a gear through the cooperation with the driving rod.

[0014] The beneficial effects of the present invention: In the present invention, the support for installing the two massage units is made into a split type, and the massage units are presented at various angles by using the rotating and extending structures. The optimized structure forms two gears and three gears. Among them, for the massage of the neck and shoulders, the acting points of the massage can be elongated, and the neck and shoulders can be massaged better. In addition, a rest gear is provided, which can be used for storage when not massaging, so that the massage units do not protrude from the kneading layer of the massage chair, enabling people to rest better. In addition, buffer and other optimizations for enhancing stability are also made. The present invention also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicability. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the cooperation structure of Embodiment 1 with the massage mechanism core and the backrest support frame;

[0016] Figure 2 It is a schematic diagram of the cooperation structure of Embodiment 1 with the massage mechanism core;

[0017] Figure 3 It is a schematic diagram of Embodiment 1;

[0018] Figure 4 It is an exploded view of the structure of Embodiment 1;

[0019] Figure 5 It is a schematic diagram of the cooperation structure of Embodiment 1 with the reference plane under the back gear;

[0020] Figure 6Schematic diagram of the mating structure between Example 1 under the neck and shoulder section and the reference plane;

[0021] Figure 7 Schematic diagram of the mating structure between Example 1 under the rest section and the reference plane;

[0022] Figure 8 Schematic diagram of the moving bracket of Example 1;

[0023] Figure 9 Exploded view of the mating structure between the static bracket and the limiting device in Example 1;

[0024] Figure 10 Schematic diagram of Example 2;

[0025] Figure 11 Exploded view of Example 2;

[0026] Figure 12 Schematic diagram of the mating structure between Example 2 and the reference plane when in the back section;

[0027] Figure 13 Schematic diagram of the mating structure between Example 2 and the reference plane when in the neck and shoulder section;

[0028] Figure 14 Schematic diagram of the static bracket of Example 2;

[0029] Figure 15 Schematic diagram of Example 3;

[0030] Figure 16 Exploded view of Example 3;

[0031] Figure 17 Schematic diagram of the mating structure between Example 3 and the reference plane when in the back section;

[0032] Figure 18 Schematic diagram of the mating structure between Example 3 and the reference plane when in the neck and shoulder section;

[0033] Figure 19 Exploded view of the static bracket of Example 3. Detailed implementation method

[0034] Example 1; As Figures 1-9As shown in the figure, an extendable massage rocker arm mechanism includes a static support 100 and a moving support 200 that are respectively used to assemble two massage units 410 and are rotationally or slidably mated. It also includes a locking mechanism 300 for limiting the static support 100 and the moving support 200. The two massage units 410 form at least one gear for extending the massage effect through the mutual cooperation among the moving support 200, the static support 100, and the locking mechanism 300. The massage unit 410 refers to massage contacts such as massage wheels and massage balls. To deeply understand this application, taking the formation of a massage surface by two massage wheels on the market as a reference surface, the following will be described in conjunction with the accompanying drawings. The gears in this embodiment are preferably 3. The massage mechanism 400 is assembled on the backrest support 420 and moves up and down. First, the 3 gears are respectively called the neck and shoulder gear, the back gear, and the rest gear. When massaging the back, the angular limit of the moving support 200 and the static support 100 is as shown in Figure 5 shown, that is, in the back gear, which has the same angle as that of a common massage chair, and the two massage units 410 are attached to the reference surface; when the massage mechanism 400 moves to the upper part, the moving support 200 rotates through the cooperation of the driving rod 310 and the guide block 110, and the moving support 200 and the static support 100 present a retracted posture and are limited. The final angular limit of the moving support 200 and the static support 100 is as shown in Figure 6 shown, and the massage unit 410 enters the neck and shoulder gear, and the upper massage unit 410 protrudes from the reference surface for shoulder massage; when the massage is to end, the moving support 200 rotates through the cooperation of the driving rod 310 and the guide block 110, and the moving support 200 and the static support 100 present an open posture and are limited. The final angular limit of the moving support 200 and the static support 100 is as shown in Figure 7 shown, and the massage unit 410 enters the rest gear, and the upper massage unit 410 retracts behind the reference surface for the storage of the massage unit 410.

[0035] An arc-shaped first guide groove 210 is provided on the moving support 200, and a guide block 110 that is adapted to the first guide groove 210 and has a straight-line movement path is provided on the static support 100. The static support 100 and the moving support 200 achieve rotational mating through the cooperation of the first guide groove 210 and the guide block 110. There are many ways of rotational mating between the moving support 200 and the static support 100. In this application, a linear drive method is adopted. The static support 100 and the moving support 200 are first rotationally mated through a pin shaft, and then the front and rear movement paths of the guide block 110 are utilized.

[0036] A bending portion 211 for limiting the guide block 110 is provided in the middle of the first guide groove 210, and the guide block 110 forms gears with the two ends and the bending portion 211 of the first guide groove 210.

[0037] The static support 100 is provided with a limiting device 120 having an elastic restoring force, and the moving support 200 is provided with a limiting hole 220 that cooperates with the limiting device 120. The limiting device 120 and the limiting hole 220 are opened and closed through the rotational cooperation of the static support 100 and the moving support 200. When the guiding block 110 is at the bending portion 211, the static support 100 and the moving support 200 are limited through the cooperation of the limiting device 120 and the limiting hole 220.

[0038] The limiting device 120 includes a rolling member 121 adapted to the limiting hole 220. The static support 100 is provided with a clamping groove 150 for assembling the rolling member 121. The clamping groove 150 is provided with a first elastic mechanism 231 that forces the rolling member 121 to move towards the moving support 200. The rolling member 121 elastically presses the moving support 200 through the cooperation of the first elastic mechanism 231. The rolling member 121 can be a steel ball, etc. The caliber of the clamping groove 150 on the side of the moving support 200 is smaller than that of the rolling member 121. The rolling member 121 and the first elastic mechanism 231 are loaded from the other side and then fixed with a nut. The first elastic mechanism 231 can be a spring mechanism.

[0039] It includes a second elastic mechanism 240 for increasing the rotational cooperation angle. The static support 100 and the moving support 200 are elastically supported through the cooperation of the second elastic mechanism 240. The second elastic mechanism 240 can be a torsion spring mechanism. Although the limitation of the moving support 200 and the static support 100 is achieved by the cooperation of the driving rod 310 and the guiding block 110, plus the assistance of the limiting device 120 and the bending portion 211, there will still be a tolerance gap between the moving support 200 and the static support 100. Adding the second elastic mechanism 240 largely compensates for this defect, similar to a buffering effect.

[0040] The locking mechanism 300 includes a driving rod 310 for reciprocating movement and limiting of the guiding block 110. The guiding block 110 forms a gear through the cooperation with the driving rod 310. The rotation and limitation of the moving support 200 and the static support 100 mainly rely on the driving rod 310. There are many driving forms of the driving rod 310, such as a cylinder, etc. In this application, a lead screw mechanism is preferably adopted. The moving support 200 forms a gear through the cooperation with the driving rod 310. Since the guiding block 110 is stuck in the first guiding groove 210, the self-rotation of the driving rod 310 enables the guiding block 110 to move back and forth. The use of the lead screw mechanism can make the conversion and stopping of the gear more stable and steady.

[0041] Embodiment 2; As Figures 10-14As shown, the difference between this embodiment and Embodiment 1 is that the number of gears in this embodiment is preferably two. A second guiding groove 130 for accommodating the moving bracket 200 is provided on the static bracket 100. A guiding block 110 with a straight line as the movement path is provided on the moving bracket 200. A limiting groove 140 adapted to the guiding block 110 is provided on the static bracket 100. The moving bracket 200 and the static bracket 100 are limited to reciprocate in the second guiding groove 130 through the cooperation of the limiting groove 140 and the guiding block 110. The moving bracket 200 expands and contracts through the second guiding groove 130. The extending direction of the notch of the second guiding groove 130 directly determines the extension of the two massage units 410. The cooperation of the guiding block 110 and the limiting groove 140 enables the guiding block 110 to only move along a straight line. First, the gears are respectively called the neck and shoulder gear and the back gear. When massaging the back, the limiting of the moving bracket 200 and the static bracket 100 is as Figure 12 shown, that is, in the back gear, which has the same angle as that of an ordinary massage chair, and the two massage units 410 are in contact with the reference plane; when the massage mechanism 400 moves to the upper part, the moving bracket 200 extends out of the second guiding groove 130 through the cooperation of the driving rod 310 and the guiding block 110. The moving bracket 200 and the static bracket 100 present an extended posture and are limited. The final limiting of the moving bracket 200 and the static bracket 100 is as Figure 13 shown. The massage unit 410 enters the neck and shoulder gear, and the upper massage unit 410 protrudes from the reference plane for shoulder massage.

[0042] It includes a massage mechanism 400. The static bracket 100 and the massage mechanism 400 are rotationally matched through a rotating shaft. An included angle is formed between the two massage units 410 and the rotating shaft. The length extending direction of the second guiding groove 130 has a straight line setting for maintaining the included angle. In this embodiment, the two massage units 410 maintain the original angle and only extend linearly.

[0043] Embodiment 3; as Figures 15-19 shown, the difference between this embodiment and Embodiment 2 is that the length extending direction of the second guiding groove 130 is arc-shaped. The two massage units 410 form opposite and back arc-shaped movement paths through the cooperation of the second guiding groove 130. In this embodiment, the moving bracket 200 is designed to have an arc-shaped movement path. Since the moving bracket 200 and the guiding block 110 can be movably connected through rotational cooperation, etc., and the cooperation of the guiding block 110 and the limiting groove 140 enables the guiding block 110 to only move along a straight line, the moving bracket 200 extends along the arc-shaped structure of the second guiding groove 130.

[0044] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, simple modifications and substitutions made by ordinary technical personnel in the art are within the protection scope of the present invention.

Claims

1. An extendable massage swing arm mechanism, characterized in that, It includes a static bracket (100) and a moving bracket (200) that are respectively used for assembling two massage units (410) and are rotationally fitted, and further includes a locking mechanism (300) for limiting the static bracket (100) and the moving bracket (200). The two massage units (410) form at least one gear for extending the massage effect through the mutual cooperation among the moving bracket (200), the static bracket (100), and the locking mechanism (300); an arc-shaped first guide groove (210) is provided on the moving bracket (200), and a guide block (110) that is adapted to the first guide groove (210) and has a straight-line movement path is provided on the static bracket (100). The static bracket (100) and the moving bracket (200) achieve rotational fitting through the cooperation of the first guide groove (210) and the guide block (110); the locking mechanism (300) includes a driving rod (310) for the reciprocating movement and limitation of the guide block (110). The driving rod (310) adopts a lead screw mechanism, and the guide block (110) forms a gear through the cooperation with the driving rod (310).

2. The extendable massage swing arm mechanism according to claim 1, wherein A bending portion (211) for limiting the guide block (110) is provided in the middle of the first guide groove (210), and the guide block (110) forms a gear through the cooperation with the two ends and the bending portion (211) of the first guide groove (210).

3. The extendable massage swing arm mechanism according to claim 2, characterized in that, A limiting device (120) with an elastic restoring force is provided on the static bracket (100), and a limiting hole (220) that cooperates with the limiting device (120) is provided on the moving bracket (200). The limiting device (120) and the limiting hole (220) are opened and closed through the rotational fitting of the static bracket (100) and the moving bracket (200). When the guide block (110) is located at the bending portion (211), the static bracket (100) and the moving bracket (200) are limited through the cooperation of the limiting device (120) and the limiting hole (220).

4. The extendable massage swing arm mechanism according to claim 3, characterized in that, The limiting device (120) includes a rolling member (121) that is adapted to the limiting hole (220). A card slot (150) for assembling the rolling member (121) is provided on the static bracket (100). A first elastic mechanism (231) for forcing the rolling member (121) to move towards the moving bracket (200) is provided in the card slot (150), and the rolling member (121) elastically presses the moving bracket (200) through the cooperation of the first elastic mechanism (231).

5. The extendable massage swing arm mechanism according to claim 1, wherein, It includes a second elastic mechanism (240) for increasing the rotational fitting angle. The static bracket (100) and the moving bracket (200) achieve elastic support through the cooperation of the second elastic mechanism (240).

6. An extendable massage swing arm mechanism, characterized in that, It includes a static support (100) and a moving support (200) that are respectively used for assembling two massage units (410) and are in sliding fit, and also includes a locking mechanism (300) for limiting the static support (100) and the moving support (200). At least one gear for extending the massage effect is formed through the mutual cooperation among the two massage units (410), the moving support (200), the static support (100) and the locking mechanism (300); a second guiding groove (130) for accommodating the moving support (200) is provided on the static support (100), a guiding block (110) with a straight line as the movement path is provided on the moving support (200), a limiting groove (140) adapted to the guiding block (110) is provided on the static support (100), and the moving support (200) and the static support (100) realize limited reciprocating movement in the second guiding groove (130) through the cooperation of the limiting groove (140) and the guiding block (110); the locking mechanism (300) includes a driving rod (310) for the reciprocating movement and limitation of the guiding block (110), the driving rod (310) adopts a lead screw mechanism, and the guiding block (110) forms a gear through the cooperation with the driving rod (310).

7. The extendable massage swing arm mechanism according to claim 6, characterized in that, It includes a massage movement (400), the static support (100) and the massage movement (400) are in rotational fit through a rotating shaft, an included angle is formed between the two massage units (410) and the rotating shaft, and the length extension direction of the second guiding groove (130) has a straight line setting for maintaining the included angle.

8. The extendable massage swing arm mechanism according to claim 6, wherein, The length extension direction of the second guiding groove (130) is arc-shaped, and the two massage units (410) form opposite and back arc-shaped movement paths through the cooperation of the second guiding groove (130).

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