Protective device for preventing top and back of head for storing movement

Abstract

A protective pad matched with the curve of the back of a human body is arranged on the front side of a machine frame, and flexible deformation parts on the two sides of the protective pad are provided with arc-shaped outlines protruding outwards, so that a massage arm in a stored state is completely hidden in the rear and is prevented from being in contact with the back of a user; the top of the protective pad is transited to a transition plate extending backwards through a continuous arc surface, and a soft independent flexible pad is arranged in the center of the protective pad to enhance buffering. Through a hidden mechanical structure and a composite protection design, top pressure interference in a storage state is effectively eliminated, and the basic riding comfort of users with different body types is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of massage chairs, in particular to a head and back protection device for storing a movement to prevent pressing. Background Art

[0002] Common problems in the massage mechanisms of traditional massage chairs are that the mechanical structures are generally exposed. Their rigid massage arms cannot be fully accommodated in the non-working state, resulting in the top pressure interference of mechanical components on users when they are in a simple sitting state, seriously affecting the basic sitting experience. In view of this technical defect, although improved movement structures with retractable massage arms have emerged in the prior art, it is found through actual application verification that when there are special body types of people with a height lower than 160 cm or a BMI index less than 18.5 in the user group, the occipital region of the head and the upper thoracic vertebrae will still have contact interference with the movement components (specifically the massage arm) in the retracted state in the standard sitting posture, affecting the comfort of massage. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the disadvantages and deficiencies existing in the prior art, and to provide a head and back protection device for storing a movement to prevent pressing.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a head and back protection device for storing a movement, including a frame, and two groups of symmetrically arranged massage mechanisms. Each group of massage mechanisms includes a massage arm and a massage wheel. A protection pad adapted to the curve of the human back is fixedly provided on the front side of the frame. Elastic deformable flexible deformation parts are provided on both sides of the protection pad. The massage arm is completely hidden in the space behind the flexible deformation parts in the retracted state.

[0005] As a preferred technical solution of the utility model, the flexible deformation part has an outwardly convex arc profile.

[0006] As a preferred technical solution of the utility model, the top of the protection pad extends backward to form a transition plate, and the transition between the transition plate and the protection pad is through a continuous arc surface.

[0007] As a preferred technical solution of the utility model, an independent flexible pad is provided in the center of the front surface of the protection pad, and the independent flexible pad is made of a soft elastic material.

[0008] As a preferred technical solution of the utility model, the frame includes a left side plate and a right side plate arranged in parallel. A rotating shaft and a walking shaft are arranged between the two plates. The rotating shaft is close to the installation end of the protection pad, and walking wheels are assembled at both ends of the walking shaft.

[0009] As a preferred technical solution of the present utility model, the rotating shaft is driven by a kneading transmission mechanism, and the kneading transmission mechanism includes a kneading motor fixed on the machine frame, a kneading worm connected to the output end of the kneading motor, and a worm gear provided on the rotating shaft and meshing with the kneading worm.

[0010] As a preferred technical solution of the present utility model, the massage arm is connected to the rotating shaft through an eccentric sleeve. The rotating shaft is provided with an eccentric sleeve corresponding to each massage arm, and the massage wheel is arranged at the end of the massage arm.

[0011] As a preferred technical solution of the present utility model, a knocking transmission mechanism is further provided. The knocking transmission mechanism includes a knocking shaft arranged parallel to the rotating shaft and a slapping motor fixedly arranged on the sliding seat. The knocking shaft is rotatably installed on the sliding seat and is linked with the output shaft of the slapping motor. An eccentric part is arranged on the knocking shaft, and a knocking bearing seat is sleeved outside the eccentric part. The knocking bearing seat is universally connected to the massage arm through a ball head connecting rod.

[0012] As a preferred technical solution of the present utility model, a sliding frame is arranged in the middle of the machine frame. The sliding frame is vertically connected to the rotating shaft and the walking shaft. The sliding seat is slidably installed on the sliding frame through a screw rod transmission assembly. The rotating shaft and the walking shaft are rotatably matched with the sliding frame through bearings.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the flexible deformation parts protruding outward on both sides of the protective pad and the arc-shaped contour design, a buffer space with a deep middle and gradually shallower sides is formed when the massage arm is stored, so that the massage mechanism is completely hidden behind the protective pad, effectively avoiding the contact between the backs of users with different body types (especially those with a height below 160 cm or those who are thin) and rigid mechanical components, and completely solving the problem of top pressure discomfort in the non-working state of traditional massage chairs.

[0015] The elastic deformation characteristics of the flexible deformation parts can automatically adjust the deformation amount along with the movement of the massage arm, which not only ensures the movement freedom of the mechanical structure when the massage action is executed, but also closely fits the human body curve through the material resilience when stored, realizing the seamless switching between static protection and dynamic massage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the protective pad in the present utility model;

[0018] Figure 3 is a structural schematic diagram of the present utility model with the front of the protective pad removed;

[0019] Figure 4It is a schematic structural diagram of the back of the present utility model.

[0020] Reference numerals: 1, frame; 2, massage arm; 3, massage wheel; 4, protective pad; 5, flexible deformation part; 6, arc contour; 7, transition plate; 8, arc surface; 9, independent flexible pad; 10, left side plate; 11, right side plate; 12, rotating shaft; 13, walking shaft; 14, walking wheel; 15, kneading transmission mechanism; 16, kneading motor; 17, eccentric sleeve; 18, knocking transmission mechanism; 19, knocking shaft; 20, slapping motor; 21, sliding seat; 22, eccentric part; 23, knocking bearing seat; 24, ball head connecting rod; 25, sliding frame. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] As Figures 1-4 shown, a headrest and back protection device for a collection movement includes a frame 1 and two groups of symmetrically arranged massage mechanisms. Each massage mechanism includes a massage arm 2 and a massage wheel 3. A protective pad 4 adapted to the curve of the human back is fixedly provided on the front side of the frame 1. Flexible deformation parts 5 capable of elastic deformation are provided on both sides of the protective pad 4. The massage arm 2 is completely hidden in the space behind the flexible deformation part 5 in the storage state. The flexible deformation part 5 has an outwardly convex arc contour 6. In this embodiment, the flexible deformation part 5 is integrally formed on the protective pad 4, so that the protective pad 4 forms a contact surface with a greater depression depth in the middle than on both sides; or is separately fixed (by means of fasteners, clamping, plugging, etc.) on the protective pad 4. In the present application, the "flexible deformation part 5" is the core component for the protective pad 4 to achieve dynamic deformation and buffer protection. Its material needs to have both high elasticity, anti-fatigue properties and shape memory characteristics, and at the same time meet the comfort of human contact and the adaptability of mechanical movement. It can use a single or composite material, which can be a super-elastic polymer material (such as thermoplastic polyurethane elastomer) or a composite foam material (such as polyurethane / silicone blend foam).

[0024] Through the flexible deformation parts 5 protruding outward on both sides of the protective pad 4 and the arc-shaped contour 6 design, a buffer space with a deep middle and gradually shallower sides is formed when the massage arm 2 is stored, so that the massage mechanism is completely hidden behind the protective pad 4, effectively avoiding the contact between the backs of users with different body types (especially those with a height below 160 cm or those who are thin) and the rigid mechanical components, and completely solving the problem of pressing discomfort in the non-working state of traditional massage chairs; the elastic deformation characteristics of the flexible deformation parts 5 can automatically adjust the deformation amount with the movement of the massage arm 2, not only ensuring the movement freedom of the mechanical structure when the massage action is executed, but also tightly fitting the human body curve through the material resilience when stored, realizing the seamless switching between static protection and dynamic massage.

[0025] A transition plate 7 extends backward from the top of the protective pad 4, and the transition between the transition plate 7 and the protective pad 4 is achieved through a continuous arc surface 8, realizing unobstructed movement and preventing the cloth from being caught.

[0026] An independent flexible pad 9 is provided in the center of the front surface of the protective pad 4. The independent flexible pad 9 is made of a soft elastic material. In this application, the "soft elastic material" refers to a flexible material with low modulus, high resilience, and capable of adapting to the contact pressure of the human body. Its specific types include, but are not limited to, the following categories: silicone rubber, thermoplastic polyurethane, thermoplastic elastomer, etc.

[0027] The frame 1 includes a left side plate 10 and a right side plate 11 arranged in parallel. A rotating shaft 12 and a walking shaft 13 are installed between the two plates. The rotating shaft 12 is close to the installation end of the protective pad 4, and walking wheels 14 are assembled at both ends of the walking shaft 13.

[0028] The rotating shaft 12 is driven by a kneading transmission mechanism 15. The kneading transmission mechanism 15 includes a kneading motor 16 fixed on the frame 1, a kneading worm connected to the output end of the kneading motor 16, and a worm gear provided on the rotating shaft 12 and meshing with the kneading worm. The kneading transmission mechanism 15 is driven by the rigid transmission of the worm gear and the eccentric sleeve 17, eliminating the vibration and abnormal noise caused by the gear clearance while ensuring the precise control of the kneading force.

[0029] The massage arm 2 is connected to the rotating shaft 12 through an eccentric sleeve 17. The rotating shaft 12 is provided with an eccentric sleeve 17 corresponding to each massage arm 2, and the massage wheel 3 is arranged at the end of the massage arm 2.

[0030] A knocking transmission mechanism 18 is further provided. The knocking transmission mechanism 18 includes a knocking shaft 19 arranged parallel to the rotating shaft 12 and a flapping motor 20 fixedly arranged on the sliding seat 21. The knocking shaft 19 is rotatably installed on the sliding seat 21 and is linked with the output shaft of the flapping motor 20. An eccentric part 22 is provided on the knocking shaft 19, and a knocking bearing seat 23 is sleeved outside the eccentric part 22. The knocking bearing seat 23 is universally connected with the massage arm 2 through a ball head connecting rod 24. The knocking transmission mechanism 18 integrates the flapping motor 20 and the eccentric shaft through the sliding seat 21, and uses the ball head connecting rod 24 to realize the universal transmission of the knocking action, so that the kneading and knocking function modules are highly intensively arranged in space, which not only reduces the overall volume but also improves the transmission efficiency, and ensures that each mechanism does not interfere with each other during the switching of multi-mode actions.

[0031] A sliding frame 25 is provided in the middle of the frame 1. The sliding frame 25 is vertically connected to the rotating shaft 12 and the walking shaft 13. The sliding seat 21 is slidably installed on the sliding frame 25 through a lead screw transmission assembly. The rotating shaft 12 and the walking shaft 13 are rotatably matched with the sliding frame 25 through bearings. In this embodiment, the lead screw transmission assembly is a prior art and will not be specifically described in this application.

[0032] The above shows and describes 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. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A headrest protection device for storing a movement, comprising a frame (1), two groups of symmetrically arranged massage mechanisms, each group of massage mechanisms comprising a massage arm (2) and a massage wheel (3), characterized in that: A protective pad (4) adapted to the back curve of a human body is fixedly provided on the front side of the frame (1), and flexible deformation parts (5) capable of elastic deformation are provided on both sides of the protective pad (4), and the massage arm (2) is completely hidden in the space behind the flexible deformation part (5) in the storage state.

2. The anti-headrest protection device for the collection movement according to claim 1, characterized in that: The flexible deformation portion (5) has an arc-shaped profile (6) that bulges outwards.

3. The anti-overhead back protection device for storing a movement according to claim 1, characterized in that: The top of the protective pad (4) extends backward to form a transition plate (7), and a continuous arc surface (8) is used to transition between the transition plate (7) and the protective pad (4).

4. The anti-headrest protection device for storing movement according to claim 1, characterized in that: An independent flexible pad (9) is provided in the center of the front surface of the protective pad (4), and the independent flexible pad (9) is made of soft elastic material.

5. The anti-overhead protection device for storing a movement according to claim 1, characterized in that: The frame (1) comprises a left side plate (10) and a right side plate (11) arranged in parallel, a rotating shaft (12) and a traveling shaft (13) are arranged between the two plates, wherein the rotating shaft (12) is close to the installation end of the protective pad (4), and traveling wheels (14) are arranged at both ends of the traveling shaft (13).

6. The anti-overhead protection device for storing a movement according to claim 5, characterized in that: The rotating shaft (12) is driven by a kneading transmission mechanism (15), and the kneading transmission mechanism (15) comprises a kneading motor (16) fixed on the frame (1), a kneading worm connected to the output end of the kneading motor (16), and a worm wheel arranged on the rotating shaft (12) and meshing with the kneading worm.

7. The anti-headrest protection device for the collection movement according to claim 6, characterized in that: The massage arm (2) is connected to the rotating shaft (12) via an eccentric sleeve (17); the rotating shaft (12) is provided with an eccentric sleeve (17) corresponding to each massage arm (2); and the massage wheel (3) is provided at the end of the massage arm (2).

8. The anti-headrest protection device for the collection movement according to claim 5, characterized in that: A knocking transmission mechanism (18) is also provided, the knocking transmission mechanism (18) comprising a knocking shaft (19) arranged parallel to the rotating shaft (12), and a beating motor (20) fixedly arranged on a sliding seat (21), the knocking shaft (19) being rotatably mounted on the sliding seat (21) and linked with the output shaft of the beating motor (20), the knocking shaft (19) being provided with an eccentric part (22), the outer shell of the eccentric part (22) being provided with a knocking bearing seat (23), and the knocking bearing seat (23) being universally connected to the massage arm (2) through a ball head connecting rod (24).

9. The anti-headrest protection device for the collection movement according to claim 8, characterized in that: A sliding frame (25) is provided in the middle of the frame (1), and the sliding frame (25) is vertically connected to the rotating shaft (12) and the traveling shaft (13). The sliding seat (21) is slidably mounted on the sliding frame (25) through a screw transmission assembly, and the rotating shaft (12) and the traveling shaft (13) are rotatably matched with the sliding frame (25) through bearings.

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