A suspension type self-adhesion friction wheel truss hoist type motor drive head cover opening and closing mechanism

Abstract

The application discloses a suspension type self-adhesion friction wheel beam crane type motor driving head cover opening and closing mechanism and relates to the technical field of massage chairs. The suspension type self-adhesion friction wheel beam crane type motor driving head cover opening and closing mechanism comprises a fixed head cover, a turnover head cover and an arc-shaped guide rail. The turnover head cover is opened and closed by sliding along the rail through a floating assembly. The floating assembly is composed of a suspension base, a floating carrier and a pre-tightening elastic member. The suspension base is slidably connected with the rail. The floating carrier is floated in the vertical direction of the rail through the elastic member. The driving friction wheel is rollingly pressed with the rail. The elastic member provides adaptive contact pressure. The outer ring of the friction wheel is made of elastic material. The driving wheel is driven by a motor. The driven wheel is auxiliary supported. The rotating shaft is concentrically arranged with the rail. The suspension type floating structure is used to realize the dynamic adhesion of the friction wheel and the rail, reduce the opening and closing resistance, avoid the jamming or damage caused by the deformation of the head cover, and has the advantages of stable operation, strong anti-deformation capacity, overload protection and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of massage chairs, and particularly relates to a suspension type self-adhesion friction wheel truss crane type motor driven head cover opening and closing mechanism. BACKGROUND

[0002] In order to completely relax the user's body and mind when using the massage chair, a head cover is usually arranged on the massage chair. The head cover is reversibly arranged on the massage chair. The user can have a comfortable and quiet space by reversing the head cover, and the light can be prevented from entering the user's eyes.

[0003] Generally, the massage chair with the reversible head cover mainly reverses the head cover by the electric mode. The head cover is divided into a fixed head cover and a reversible head cover. The reversible head cover is pivoted relative to the fixed head cover to realize opening and closing. The inner wall of the fixed head cover and the inner wall of the reversible head cover are in close contact. The reversible head cover is driven by the motor to pivot. When the head cover is deformed, a large resistance is generated. Forced opening may cause damage to the mechanism or injury to the personnel. SUMMARY

[0004] The present application aims at overcoming the shortcomings and deficiencies in the prior art, and provides a suspension type self-adhesion friction wheel truss crane type motor driven head cover opening and closing mechanism.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a suspension type self-adhesion friction wheel truss crane type motor driven head cover opening and closing mechanism, comprising a fixed head cover and a reversible head cover which is hingedly connected to the inner side of the fixed head cover and can be manually or automatically opened and closed, an arc-shaped guide rail is connected to the inner side of the fixed head cover, a floating assembly which slides along the arc-shaped guide rail is connected to the reversible head cover, the floating assembly comprises a suspension base and a floating carrier which can slide relative to each other, the suspension base is slidingly connected with the arc-shaped guide rail, the floating carrier is elastically connected with the suspension base through a pre-tightening elastic member, the floating carrier floats in a direction perpendicular to the tangent direction of the arc-shaped guide rail, the floating carrier is provided with a friction wheel which rolls and is pressed against the arc-shaped guide rail, the pre-tightening elastic member forces the floating carrier to move towards the arc-shaped guide rail to maintain the contact pressure of the friction wheel and the arc-shaped guide rail, wherein the suspension base, the floating carrier and the friction wheel move synchronously along the arc-shaped guide rail with the opening and closing movement of the reversible head cover.

[0006] As a preferred technical scheme of the present application, a guide groove is arranged on the outer wall of the reversible head cover along the opening and closing track, and the suspension base and / or the floating carrier are slidingly guided and matched with the inner wall of the guide groove.

[0007] As a preferred technical scheme of the present application, the fixed head cover is raised at the central position of the outer side and a sliding groove is formed at the inner side, and the arc-shaped guide rail is installed in the sliding groove.

[0008] As a preferred technical scheme of the present application, the suspension base comprises a suspension mechanism in sliding fit with the arc-shaped guide rail, the suspension mechanism comprising a roller set pivotally connected to the suspension base, the roller set being clamped on both sides of the lower flange of the arc-shaped guide rail.

[0009] As a preferred technical scheme of the present application, the suspension base comprises a suspension plate symmetrically arranged on both sides of the floating carrier, the suspension plate being in sliding fit with the floating carrier, the roller set comprising a plurality of suspension rollers pivotally connected to the inner side of the suspension plate, arc-shaped extension plates being arranged on both sides of the arc-shaped guide rail to support the suspension rollers, the arc-shaped extension plates providing suspension support for the suspension rollers.

[0010] As a preferred technical scheme of the present application, the pre-tightening elastic member is a tension spring symmetrically arranged on both sides of the floating carrier, the two ends of the tension spring being connected to the floating carrier and the suspension base respectively.

[0011] As a preferred technical scheme of the present application, the friction wheel is provided with two, one being configured as a driving wheel and the other as a driven wheel, the driving wheel and the driven wheel being pivotally connected to the floating carrier and being spaced apart from each other, the driving wheel and the driven wheel being in abutment with the inner side of the arc-shaped guide rail, the driving wheel being driven by a driving motor mounted on one side of the floating carrier; or, the friction wheel is provided with two, one being configured as a driving wheel and the other as a driven wheel, the driving wheel being rotatably arranged in the floating carrier and the driven wheel being rotatably mounted on the suspension base, the driving wheel and the driven wheel being in abutment with the inner side of the arc-shaped guide rail, the driving wheel being driven by a driving motor mounted on one side of the floating carrier.

[0012] As a preferred technical scheme of the present application, at least the outer ring part of the friction wheel is an elastic friction layer.

[0013] As a preferred technical scheme of the present application, the two sides of the turnover head cover are provided with rotary shafts in rotary fit with the fixed head cover, the axes of the rotary shafts coinciding with the center of the arc-shaped guide rail.

[0014] As a preferred technical scheme of the present application, the two sides of the fixed head cover are provided with arc-shaped grooves consistent with the opening and closing path of the turnover head cover, the two sides of the turnover head cover being provided with guide rods slidingly mounted in the arc-shaped grooves.

[0015] In summary, the present application has the following advantages: the suspension floating structure is used to realize the dynamic abutment of the friction wheel and the rail, the opening and closing resistance is reduced, the jamming or damage caused by the deformation of the head cover is avoided, the manual / electric dual-mode operation is realized, and the advantages of smooth operation, strong anti-deformation ability and overload protection are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the massage chair head cover in the open state according to the present application.

[0017] Figure 2 is the structure diagram of the massage chair head cover closed state of the present application;

[0018] Figure 3 is the section view of the head cover opening and closing mechanism in the present application;

[0019] Figure 4 is the structure diagram of the floating assembly in the present application;

[0020] Figure 5 is the structure diagram of the head cover turning over in the present application;

[0021] Figure 6 is Figure 5 the enlarged view of the local A.

[0022] Reference signs: 1, fixed head cover; 2, turning over head cover; 3, arc-shaped guide rail; 4, floating assembly; 5, suspension base; 6, floating carrier; 7, friction wheel; 8, guide groove; 9, sliding groove; 10, roller set; 11, suspension plate; 12, suspension roller; 13, arc-shaped extension plate; 14, pre-tightening elastic member; 15, driving motor; 16, rotating shaft; 17, arc-shaped groove. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following further describes the present application in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

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

[0025] As Figures 1-6The illustrated suspension type self-adhesion friction wheel truss crane motor drive head cover opening and closing mechanism includes a fixed head cover 1 and a flip head cover 2 that is hingedly connected to the inner side of the fixed head cover 1 and can be manually or automatically opened and closed, the fixed head cover 1 is connected with an arc-shaped guide rail 3, the flip head cover 2 is connected with a floating assembly 4 that slides along the arc-shaped guide rail 3, the floating assembly 4 includes a suspension base 5 and a floating carrier 6 that can slide relative to each other, the suspension base 5 is slidingly connected with the arc-shaped guide rail 3, the floating carrier 6 is elastically connected with the suspension base 5 through a pre-tightening elastic member 14, the floating carrier 6 floats in a direction perpendicular to the tangent of the arc-shaped guide rail 3, the floating carrier 6 is provided with a friction wheel 7 that rolls and presses against the arc-shaped guide rail 3, the pre-tightening elastic member 14 forces the floating carrier 6 to move towards the arc-shaped guide rail 3 to maintain the contact pressure of the friction wheel 7 and the arc-shaped guide rail 3, wherein the suspension base 5, the floating carrier 6 and the friction wheel 7 move synchronously along the arc-shaped guide rail 3 with the opening and closing movement of the flip head cover 2, the head cover opening and closing mechanism in this embodiment can be applied to a massage chair and is not limited to the use scene, and can be used in any product that needs to use the head cover opening and closing mechanism.

[0026] The dynamic adhesion of the friction wheel 7 and the track is realized through the suspension type floating structure, the opening and closing resistance is reduced, the jamming or damage caused by the deformation of the head cover is avoided, the manual / electric dual-mode operation is achieved, and the advantages of stable operation, strong anti-deformation ability and overload protection are achieved, the floating carrier 6 is elastically connected with the suspension base 5 through the pre-tightening elastic member 14 (such as a tension spring), so that the friction wheel 7 always floats in the direction perpendicular to the arc-shaped guide rail 3, the deformation of the head cover or the assembly error is dynamically compensated, the contact pressure of the friction wheel 7 and the track is kept constant, and the slip caused by insufficient pressure or abnormal wear caused by excessive pressure is avoided.

[0027] The outer wall of the flip head cover 2 is provided with a guide groove 8 along its opening and closing track, and the suspension base 5 and / or the floating carrier 6 are slidingly guided in the inner wall of the guide groove 8 (the guide part cooperates with the guide groove, which is prior art and is not described in detail).

[0028] The fixed head cover 1 is raised at the central position on the outer side and forms a sliding groove 9 on the inner side, and the arc-shaped guide rail 3 is installed in the sliding groove 9.

[0029] The suspension base 5 includes a suspension mechanism that slidingly cooperates with the arc-shaped guide rail 3, the suspension mechanism includes a roller set 10 that is pivoted to the suspension base 5, and the roller set 10 is clamped on both sides of the lower flange of the arc-shaped guide rail 3.

[0030] The suspension base 5 comprises suspension plates 11 symmetrically arranged on both sides of the floating carrier 6, which are in sliding guide cooperation with the floating carrier 6. The roller set 10 comprises a plurality of suspension rollers 12 pivotally connected to the inner side of the suspension plate 11. The arc-shaped guide rail 3 is provided with arc-shaped extension plates 13 on both sides for bearing the suspension rollers 12, which provide suspension support for the suspension rollers 12. The outer elastic friction layer of the friction wheel 7 cooperates with the suspension roller set 10. When the head cover is deformed or impacted by external force, the elastic friction layer absorbs the deformation energy. The suspension mechanism disperses the load through the flexible support of the roller set 10 and the arc-shaped extension plate 13, and the risk of jamming is reduced by 90%.

[0031] The pre-tightening elastic member 14 is a tension spring symmetrically arranged on both sides of the floating carrier 6, and the two ends of the tension spring are respectively connected with the floating carrier 6 and the suspension base 5.

[0032] The friction wheel 7 is provided with two, one configured as a driving wheel, the other configured as a driven wheel, the driving wheel and the driven wheel are pivotally connected to the floating carrier 6 and are spaced apart, the driving wheel and the driven wheel are in close contact with the inner side of the arc-shaped guide rail 3, and the driving wheel is driven by the driving motor 15 mounted on one side of the floating carrier 6; or the friction wheel 7 is provided with two, one configured as a driving wheel, the other configured as a driven wheel, the driving wheel is rotatably arranged in the floating carrier 6, and the driven wheel is rotatably mounted on the suspension base 5, the driving wheel and the driven wheel are in close contact with the inner side of the arc-shaped guide rail 3, and the driving wheel is driven by the driving motor 15 mounted on one side of the floating carrier 6.

[0033] The driving wheel (motor driven) and the driven wheel (follow-up) form double-sided envelope contact with the arc-shaped guide rail 3, increase the effective friction contact area, and increase the total friction under the same contact pressure, allowing the system to transmit greater torque without slipping.

[0034] The friction wheel 7 is at least partially provided with an elastic friction layer on the outer ring, only on the outer ring, or is entirely made of soft material. In this embodiment, the soft material can be rubber or silicone or other materials that are easily deformed under external force, have low hardness and high elasticity.

[0035] The two sides of the turnover head cover 2 are provided with rotating shafts 16 in rotating cooperation with the fixed head cover 1, the axis of the rotating shaft 16 coincides with the center of the arc-shaped guide rail 3, the two sides of the fixed head cover 1 are provided with arc-shaped grooves 17 consistent with the opening and closing path of the turnover head cover 2, and the two sides of the turnover head cover 2 are provided with guide rods slidingly installed in the arc-shaped grooves 17. In this embodiment, the axis of the rotating shaft 16 coincides with the center of the arc-shaped guide rail 3, and the path constraint of the guide rod of the turnover head cover 2 and the arc-shaped groove 17 of the fixed head cover 1 eliminates the radial deviation during opening and closing, the motion trajectory deviation is small, and the smoothness of the head cover opening and closing action is ensured.

[0036] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and such changes and improvements fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A suspension type self-adhesion friction wheel girder crane type motor drive head cover opening and closing mechanism, comprising a fixed head cover (1) and a turnover head cover (2) hinged to the inner side of the fixed head cover (1) and capable of being opened and closed manually or automatically, characterized in that: The fixed headgear (1) is connected to an arc-shaped guide rail (3). The flip-up headgear (2) is connected to a floating assembly (4) that slides along the arc-shaped guide rail (3). The floating assembly (4) includes a suspension base (5) and a floating support frame (6) that can slide relative to each other. The suspension base (5) is slidably connected to the arc-shaped guide rail (3). The floating support frame (6) is elastically connected to the suspension base (5) through a pre-tightened elastic element (14). The floating support frame (6) moves along a path perpendicular to the arc-shaped guide rail. (3) Floating in the tangential direction, the floating support frame (6) and / or the suspension base (5) are provided with friction wheels (7) that roll and press against the arc-shaped guide rail (3), the pre-tightening elastic element (14) forces the floating support frame (6) to move in the direction of the arc-shaped guide rail (3) to maintain the contact pressure between the friction wheel (7) and the arc-shaped guide rail (3), wherein the suspension base (5), the floating support frame (6) and the friction wheel (7) move synchronously along the arc-shaped guide rail (3) with the opening and closing movement of the flip head cover (2).

2. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: The outer wall of the flip-up hood (2) is provided with a guide groove (8) along its opening and closing trajectory, and the suspension base (5) and / or floating support frame (6) slide and guide each other with the inner wall of the guide groove (8).

3. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1 or 2, characterized in that: The fixed head cover (1) has a raised center on the outer side and a groove (9) formed on the inner side, and the arc-shaped guide rail (3) is installed in the groove (9).

4. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: The suspension base (5) includes a suspension mechanism that slides with the arc-shaped guide rail (3). The suspension mechanism includes a roller assembly (10) pivotally connected to the suspension base (5). The roller assembly (10) is clamped on both sides of the lower flange of the arc-shaped guide rail (3).

5. The suspended self-adhesive friction wheel truss-driven motor-driven head cover opening and closing mechanism according to claim 4, characterized in that: The suspension base (5) includes suspension plates (11) symmetrically arranged on both sides of the floating support frame (6). The suspension plates (11) slide and guide with the floating support frame (6). The roller assembly (10) includes several suspension rollers (12) pivotally connected to the inner side of the suspension plates (11). The arc-shaped guide rail (3) is provided with arc-shaped extension plates (13) on both sides to support the suspension rollers (12). The arc-shaped extension plates (13) provide suspension support for the suspension rollers (12).

6. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: The pre-tightening elastic element (14) is a tension spring symmetrically distributed on both sides of the floating support frame (6), and the two ends of the tension spring are connected to the floating support frame (6) and the suspension base (5) respectively.

7. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: Two friction wheels (7) are provided, one configured as a driving wheel and the other as a driven wheel. The driving wheel and the driven wheel are pivotally connected to the floating support frame (6) and are spaced apart. The driving wheel and the driven wheel are both in contact with the inner side of the arc-shaped guide rail (3). The driving wheel is driven by a drive motor (15) installed on one side of the floating support frame (6). Alternatively, two friction wheels (7) are provided, one configured as a driving wheel and the other as a driven wheel. The driving wheel is rotatably mounted inside the floating support frame (6), and the driven wheel is rotatably mounted on the suspension base (5). The driving wheel and the driven wheel are both in contact with the inner side of the arc-shaped guide rail (3). The driving wheel is driven by a drive motor (15) installed on one side of the floating support frame (6).

8. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: The friction wheel (7) has at least an elastic friction layer on its outer ring.

9. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 1, characterized in that: The flip-up headgear (2) is provided with rotating shafts (16) on both sides that rotate in conjunction with the fixed headgear (1). The axis of the rotating shafts (16) coincides with the center of the arc-shaped guide rail (3).

10. The suspended self-adhesive friction wheel gantry-driven motor-driven head cover opening and closing mechanism according to claim 9, characterized in that: The fixed head cover (1) has arc-shaped grooves (17) on both sides that are consistent with the opening and closing path of the flip head cover (2), and the flip head cover (2) has guide rods that are slidably installed in the arc-shaped grooves (17) on both sides.

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