Floating friction wheel motor-driven hood opening and closing mechanism

Abstract

The utility model discloses a floating friction wheel motor-driven hood opening and closing mechanism which comprises a fixed hood and a turnover hood which is hinged to the inner side of the fixed hood and can be manually or automatically opened and closed, a certain movable gap exists between the outer side wall of the turnover hood and the inner side wall of the fixed hood, and a friction wheel is arranged between the turnover hood and the fixed hood. At least the outer ring part of the friction wheel is an elastic friction layer, the friction wheel is directly or indirectly rotationally installed on the outer side of the overturning hood, and the outer ring part of the friction wheel abuts against the inner side wall of the fixed hood; the turnover head cover is opened and closed through friction transmission between the friction wheel and the inner wall of the fixed head cover, manual or electric operation can be achieved, the friction wheel transmits force in a rotating mode, friction resistance is small, and the turnover head cover is not prone to falling off and is not prone to falling off due to the fact that the friction wheel is installed on the inner side of the fixed head cover and the outer ring of the friction wheel abuts against the outer side wall of the turnover head cover. And the friction wheel has a soft characteristic, so that the turnover hood can be smoothly opened and closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to massage chair technical field especially relates to a floating type friction wheel motor drive head cover opening and closing mechanism. BACKGROUND

[0002] When using the massage chair, in order to let the user body and mind get thorough relaxation, usually will set up the head cover on the massage chair, the head cover can be reversely arranged on the massage chair, and the user can have a comfortable and quiet space by reversing the head cover, which can prevent light from entering the user's eyes.

[0003] Generally, the massage chair with the reversible head cover mainly pushes the head cover to pivot through the electric mode, and the head cover is divided into the fixed head cover and the reversible head cover, the reversible head cover pivots to realize the opening and closing relative to the fixed head cover, the inner wall of the fixed head cover and the inner wall of the reversible head cover are attached, the reversible head cover is driven to pivot through the motor, and when the head cover is deformed, the resistance is large, and forcibly opening may cause the mechanism to be damaged or the personnel to be injured. UTILITY MODEL CONTENTS

[0004] The utility model discloses a floating type friction wheel motor drive head cover opening and closing mechanism.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a floating type friction wheel motor drive head cover opening and closing mechanism, including the fixed head cover and the reversible head cover that is hingedly arranged on the inner side of the fixed head cover and can be manually or automatically realized opening and closing, and there is a certain activity gap between the outer side wall of the reversible head cover and the inner side wall of the fixed head cover, and a friction wheel is arranged between the outer side wall of the reversible head cover and the inner side wall of the fixed head cover.

[0006] As a preferred technical scheme of the utility model, the inner side of the fixed head cover is provided with the arc-shaped guide rail that is matched with the opening and closing direction of the reversible head cover, the arc-shaped guide rail corresponds to the position of the friction wheel, and the friction wheel can roll along the path of the arc-shaped guide rail along with the opening and closing of the reversible head cover.

[0007] As a preferred technical scheme of the utility model, the inner side of the fixed head cover is provided with the arc-shaped guide rail that is matched with the opening and closing direction of the reversible head cover, the arc-shaped guide rail corresponds to the position of the friction wheel, and the friction wheel can roll along the path of the arc-shaped guide rail along with the opening and closing of the reversible head cover.

[0008] As a preferred technical scheme of the utility model, the inner wall of the turnover head cover is downwardly convex, a groove is formed on the outer wall of the turnover head cover corresponding to the convex part, the friction wheel is directly or indirectly rotatably installed in the groove and at least partially protrudes from the outer wall of the turnover head cover to abut against the inner wall of the fixed head cover to realize friction transmission.

[0009] As a preferred technical scheme of the utility model, a floating bearing frame is arranged in the groove, the friction wheel is rotatably installed in the floating bearing frame, and a compression spring is arranged between the bottom of the floating bearing frame and the bottom of the groove.

[0010] As a preferred technical scheme of the utility model, the floating bearing frame comprises two fixed plates arranged on the two sides of the friction wheel, a motor for driving the friction wheel to rotate is arranged on the sidewall of one of the fixed plates, and the compression spring is connected between the bottom of each fixed plate and the bottom of the groove.

[0011] As a preferred technical scheme of the utility model, the two fixed plates are directly or indirectly provided with guide wheels arranged on the two sides of an arc-shaped guide rail on the side close to each other, arc-shaped extension plates are arranged below the guide wheels on the two sides of the arc-shaped guide rail, and the guide wheels are arranged on the arc-shaped extension plates.

[0012] As a preferred technical scheme of the utility model, at least two through holes are arranged on the bottom of each fixed plate in a spaced arrangement, positioning columns corresponding in number and position to the through holes are arranged on the bottom of the groove, and the compression spring is sleeved on the positioning columns and pressed on the bottom of the fixed plate.

[0013] As a preferred technical scheme of the utility model, rotation shafts rotatably matched with the fixed head cover are arranged on the two sides of the turnover head cover, and the axis of the rotation shafts coincides with the center of the arc-shaped guide rail.

[0014] As a preferred technical scheme of the utility model, arc-shaped grooves consistent with the opening and closing path of the turnover head cover are arranged on the two sides of the fixed head cover, and guide rods slidably installed in the arc-shaped grooves are arranged on the two sides of the turnover head cover.

[0015] In summary, the utility model has the advantages that the turnover head cover is opened and closed through friction transmission between the friction wheel and the inner wall of the fixed head cover, can be manually or electrically operated, the friction wheel transmits force in a rotary mode, the friction resistance is small, the friction wheel has soft characteristics, the friction wheel deforms when the resistance of the head cover is large before deformation, the turnover head cover can be smoothly turned over, and the situation of being stuck or the mechanism being damaged does not occur. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the massage chair head cover in an opened state of the utility model;

[0017] Figure 2 is the structure schematic view of the massage chair head cover closed state of the utility model;

[0018] Figure 3 is the structure schematic view of the head cover assembly closed state in the utility model;

[0019] Figure 4 is the front view of the head cover assembly in the utility model;

[0020] Figure 5 is the three-dimensional view of the arc-shaped guide rail, floating bearing frame and friction wheel cooperation in the utility model;

[0021] Figure 6 is the three-dimensional view of the rotating head cover in the utility model.

[0022] Reference signs: 1, massage chair main body;2, head cover assembly;3, fixed head cover;4, turnover head cover;5, movable gap;6, arc-shaped guide rail;7, friction wheel;8, sliding groove;9, recess;10, floating bearing frame;11, compression spring;12, fixed plate;13, motor;14, guide wheel;15, arc-shaped extension plate;16, through hole;17, positioning column;18, rotating shaft;19, arc-shaped groove;20, stroke detection plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0024] The specific embodiments of the utility model are described below in combination with the drawings.

[0025] As Figures 1-6The shown floating friction wheel motor drive head cover opening and closing mechanism, including the head cover assembly 2 applied to the massage chair body 1, the head cover assembly 2 is not limited to the use scene of the massage chair, the head cover assembly 2 includes the fixed head cover 3 fixed at the head position of the massage chair body 1 and the turnover head cover 4 hinged to the inner side of the fixed head cover 3 which can be manually or automatically opened and closed, there is a certain activity gap 5 between the outer side wall of the turnover head cover 4 and the inner side wall of the fixed head cover 3 (that is, after the two are hinged, the side wall of each other does not directly contact, only through the friction wheel 7 and the inner wall of the fixed head cover 3, the rolling friction between the two can reduce the resistance when turning over) and a friction wheel 7 is arranged between the two, at least the outer ring part of the friction wheel 7 is an elastic friction layer (soft material), the friction wheel 7 is directly or indirectly rotatably installed on the outer side of the turnover head cover 4 and the outer ring part of the friction wheel 7 (only the outer ring, of course, it can also be made of soft material as a whole, in this embodiment, the soft material can be rubber or silicone or other materials that are easy to deform under external force, with low hardness and high elasticity) and the inner side wall of the fixed head cover 3 are in contact; or, the friction wheel 7 is directly or indirectly rotatably installed on the inner side of the fixed head cover 3 and the outer ring part of the friction wheel 7 and the outer side wall of the turnover head cover 4 are in contact.

[0026] The turnover head cover 4 is opened and closed by friction transmission between the friction wheel 7 and the inner wall of the fixed head cover 3, which can be manually or electrically operated. The friction wheel 7 transmits force by rotating, and the friction resistance is small. Moreover, the friction wheel 7 has soft properties. When the head cover is deformed (slightly, not particularly serious deformation) and the front end resistance is large, the friction wheel 7 is deformed under pressure, and the turnover head cover 4 can still be smoothly turned over, without the occurrence of jamming or damage to the mechanism.

[0027] The friction wheel 7 on the rotating head cover and the friction force of the fixed head cover 3 are used to achieve the opening and closing of the rotating head cover. The friction wheel 7 can be rotated by electricity or manually. When the front end has resistance, the soft material of the friction wheel 7 can avoid injury to the mechanism or personnel. To ensure that the soft material is not lost and cannot be rotated, a compression spring 11 is added to the bottom of the fixed plate 12 to increase the friction of the friction wheel 7. When the rotating head cover is pushed in the closed state, the soft material of the friction wheel 7 and the rebound force of the compression spring 11 are used to protect the mechanism from being forcibly damaged.

[0028] An arc-shaped guide rail 6 is arranged on the inner side of the fixed head cover 3 and is matched with the opening and closing direction of the turnover head cover 4. The arc-shaped guide rail 6 corresponds to the position of the friction wheel 7, and the friction wheel 7 can roll along the path of the arc-shaped guide rail 6 when the turnover head cover 4 is opened and closed. In this embodiment, the inner arc surface of the arc-shaped guide rail 6 can be provided with anti-skid lines, and the outer wall of the friction wheel 7 can also be provided with a tooth-shaped structure or anti-skid lines. In another embodiment, the arc-shaped guide rail 6 and the friction wheel 7 can be replaced by an arc-shaped rack and a gear.

[0029] A sliding groove 8 is arranged in the middle of the inner side of the fixed head cover 3, and the arc-shaped guide rail 6 is installed in the sliding groove 8 (which can be connected by fasteners, or clamped, or inserted, etc., and any installation mode that can fix the arc-shaped guide rail 6 can be used). The inner wall of the turnover head cover 4 is raised downward, and the outer wall of the turnover head cover 4 forms a groove 9 corresponding to the raised position. The friction wheel 7 is directly or indirectly rotatably installed in the groove 9 and at least partially protrudes from the outer wall of the turnover head cover 4 to abut against the inner wall of the fixed head cover 3 to achieve friction transmission.

[0030] A floating carrier 10 is arranged in the groove 9, and the friction wheel 7 is rotatably installed in the floating carrier 10. A compression spring 11 is arranged between the bottom of the floating carrier 10 and the bottom of the groove 9, which can ensure the friction between the friction wheel 7 and the arc-shaped guide rail 6.

[0031] The floating carrier 10 includes two fixed plates 12 located on both sides of the friction wheel 7. One side wall of one of the fixed plates 12 is provided with a motor 13 for driving the friction wheel 7 to rotate. The bottom of each fixed plate 12 is connected with the compression spring 11 between the bottom of the groove 9. The inner wall of the turnover head cover 4 is provided with a stroke detection plate 20. In this embodiment, the stroke detection plate 20 can be a commercially available magnetic angle detection sensor, a rotary encoder, etc. How the stroke detection plate 20 is electrically connected with the controller and how the angle is detected is not the focus of this application, which is prior art and therefore not specifically described.

[0032] The two fixed plates 12 are directly or indirectly provided with guide wheels 14 located on both sides of the arc-shaped guide rail 6 on one side close to each other. Arc-shaped extension plates 15 are arranged below the guide wheels 14 on both sides of the arc-shaped guide rail 6. The guide wheels 14 are arranged on the arc-shaped extension plates 15. In order to ensure that the friction between the friction wheel 7 and the arc-shaped guide rail 6 is not affected by the deformation of the head cover, the guide wheels 14 are arranged on both sides to ensure the movement gap 5 between the friction wheel 7 and the arc-shaped guide rail 6.

[0033] The bottom of each fixed plate 12 is provided with at least two through holes 16 arranged at intervals. The bottom of the groove 9 is provided with positioning columns 17 corresponding in number and position to the through holes 16. The compression spring 11 is sleeved on the positioning column 17 and is pressed against the bottom of the fixed plate 12.

[0034] The turnover head cover 4 is rotatably connected with the fixed head cover 3 through rotary shafts 18 arranged close to the bottom on both sides. The axis of the rotary shaft 18 coincides with the center of the arc-shaped guide rail 6. Arc-shaped grooves 19 are arranged on both sides of the fixed head cover 3, which are consistent with the opening and closing path of the turnover head cover 4. Guide rods (not shown in the figure) are slidably installed in the arc-shaped grooves 19 on both sides of the turnover head cover 4. This structure can limit the opening and closing angle of the turnover head cover 4.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application. These changes and improvements all fall within the scope of the claimed present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A floating friction wheel motor drive head cover opening and closing mechanism, comprising a fixed head cover (3) and a turnover head cover (4) hinged to the inner side of the fixed head cover (3) and capable of being opened and closed manually or automatically, characterized in that: There is a certain activity gap (5) between the outer wall of the turnover head cover (4) and the inner wall of the fixed head cover (3), and a friction wheel (7) is arranged between the two, at least the outer ring part of the friction wheel (7) is an elastic friction layer, the friction wheel (7) is directly or indirectly rotatably mounted on the outer side of the turnover head cover (4), and the outer ring part of the friction wheel (7) abuts against the inner wall of the fixed head cover (3); or, the friction wheel (7) is directly or indirectly rotatably mounted on the inner side of the fixed head cover (3), and the outer ring part of the friction wheel (7) abuts against the outer wall of the turnover head cover (4).

2. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 1, characterized in that: An arc-shaped guide rail (6) corresponding to the opening and closing direction of the turnover head cover (4) is arranged on the inner side of the fixed head cover (3), the arc-shaped guide rail (6) corresponds to the position of the friction wheel (7), and the friction wheel (7) can roll along the path of the arc-shaped guide rail (6) with the opening and closing of the turnover head cover (4).

3. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 2, characterized in that: A sliding groove (8) is arranged at the central position of the inner side of the fixed head cover (3), and the arc-shaped guide rail (6) is mounted in the sliding groove (8).

4. The floating type friction wheel motor drive head cover opening and closing mechanism according to claim 2 or 3, characterized in that: The inner wall of the turnover head cover (4) is raised downward, the outer wall of the turnover head cover (4) forms a groove (9) corresponding to the raised position, the friction wheel (7) is directly or indirectly rotatably mounted in the groove (9), and at least part of the friction wheel (7) protrudes from the outer wall of the turnover head cover (4) and abuts against the inner wall of the fixed head cover (3) to realize friction transmission.

5. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 4, characterized in that: A floating carrier (10) is arranged in the groove (9), the friction wheel (7) is rotatably mounted in the floating carrier (10), and a compression spring (11) is arranged between the bottom of the floating carrier (10) and the bottom of the groove (9).

6. The floating type friction wheel motor drive head cover opening and closing mechanism according to claim 5, characterized in that: The floating carrier (10) includes two fixed plates (12) located on both sides of the friction wheel (7), one side wall of one of the fixed plates (12) is provided with a motor (13) for driving the rotation of the friction wheel (7), and the compression spring (11) is connected between the bottom of each fixed plate (12) and the bottom of the groove (9).

7. The floating type friction wheel motor drive head cover opening and closing mechanism according to claim 6, characterized in that: Directly or indirectly, one side of the two fixed plates (12) is provided with a guide wheel (14) located on both sides of the arc-shaped guide rail (6), arc-shaped extension plates (15) are arranged below the guide wheel (14) on both sides of the arc-shaped guide rail (6), and the guide wheel (14) is arranged on the arc-shaped extension plate (15).

8. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 6, characterized in that: At least two through holes (16) are arranged on the bottom of each fixed plate (12) in a spaced arrangement, the bottom of the groove (9) is provided with positioning columns (17) corresponding in number and position to the through holes (16), the compression spring (11) is sleeved on the positioning column (17) and is pressed on the bottom of the fixed plate (12).

9. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 1, characterized in that: Rotating shafts matched with the fixed head cover (3) are arranged on both sides of the turnover head cover (4), and the axis of the rotating shaft coincides with the center of the arc-shaped guide rail (6).

10. The floating type friction wheel motor driving head cover opening and closing mechanism according to claim 9, characterized in that: Arc-shaped grooves (19) consistent with the opening and closing path of the turnover head cover (4) are arranged on both sides of the fixed head cover (3), and guide rods slidably mounted in the arc-shaped grooves (19) are arranged on both sides of the turnover head cover (4).

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