An adaptive massage backrest

Abstract

The utility model discloses a kind of self-adapting massage backrest, it includes outer frame, guide rail and massage movement, the massage movement is slidably arranged on guide rail, guide rail is equipped with rack with the meshing of massage movement's walking gear, the both ends of guide rail are connected together by elastic joint with outer frame respectively.The utility model is through the cooperation design of guide rail and elastic joint, flexible adjustment can be realized while keeping structural stability, the problem that traditional rigid structure cannot be pasted human body curve and complex structure leads to high cost is solved.Therefore, the utility model can not only keep stable meshing of walking gear and rack, but also adapt to different body size users through elastic deformation, with the advantages of simple structure, convenient installation, low manufacturing cost and effectively adapting to different human body curve and scene requirement.

Description

Technical Field

[0001] This utility model relates to the technical field of massagers, and in particular to an adaptive massage backrest. Background Technology

[0002] Most massage cushions and walking massage mechanisms currently on the market use a rigid structure. While these devices can achieve a wide range of reciprocating motion and meet most massage needs, their lack of flexibility prevents them from conforming well to the curves of the human back, resulting in a poor user experience. This is especially noticeable in shared spaces like movie theaters, where the feeling of something foreign in the body is significantly increased, impacting comfort. Furthermore, traditional massage devices are mostly fixed within a rigid shell. While this structure is stable, it cannot be adjusted to the shape of a chair or sofa, limiting whether the part of the massage cushion in contact with the body can fully conform to the body's curves, thus affecting the user experience.

[0003] To address this issue, an adaptive flexible massage structure has emerged on the market, designed to better conform to the curves of the human back. This type of structure includes a walking mechanism and a massage mechanism mounted on it, along with flexible walking strips, effectively solving the problem of traditional molded shells being unable to adapt to different body shapes and scenarios. However, this flexible solution also has some drawbacks. For example, it requires additional retaining components and roller bearings to ensure that the flexible walking strips remain stably engaged and in contact with the walking gears even under pressure and bending. This increases the complexity of the design, installation difficulty, and manufacturing cost. Furthermore, these flexible walking strips typically consist of two flexible racks located on either side of the walking mechanism. While this design helps increase stability, a large swing amplitude during the massage process may result in a less comfortable experience.

[0004] While existing adaptive flexible massage structures have greatly improved the fit and comfort of massage devices, their complex design and high cost limit their widespread application. Therefore, how to simplify the structural design and reduce costs while maintaining effective massage functions has become an urgent technical challenge to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a simple and low-cost adaptive massage backrest that can effectively adapt to different human body curves and scene requirements.

[0006] To achieve the above objectives, the solution of this utility model is: An adaptive massage backrest includes an outer frame, a guide rail, and a massage mechanism. The massage mechanism is slidably mounted on the guide rail, which has a rack that meshes with the traveling gear of the massage mechanism. Both ends of the guide rail are connected to the outer frame via elastic joints.

[0007] Furthermore, the guide rail has two sections, and each of the two guide rails is connected to one end of an elastic joint at its upper and lower ends, with the other end of the elastic joint connected to the outer frame.

[0008] Furthermore, the guide rail is of one type, and the left and right outer sides of the guide rail are respectively provided with racks that mesh with the walking gears of the massage mechanism, and the upper and lower ends of the guide rail are respectively provided with at least one elastic joint.

[0009] Furthermore, the elastic joint is a wavy joint.

[0010] Furthermore, the connection method between the elastic joint and the outer frame and guide rail can be any one of the following: integral molding, screw fastening, snap-fit, or a combination of both.

[0011] Furthermore, the adaptive massage backrest is also provided with an outer cover that houses the outer frame, guide rail and massage mechanism. The outer cover is made of cloth or leather.

[0012] Furthermore, the massage mechanism is located on the front of the outer frame, and a support frame is also provided on the back of the outer frame, with a deformation gap between the support frame and the outer frame.

[0013] Furthermore, a wear-resistant pad is provided between the support frame and the massage mechanism.

[0014] By adopting the above structure, this utility model's adaptive massage backrest, through the cooperative design of the guide rail and elastic joint, achieves flexible adjustment while maintaining structural stability. This solves the problems of traditional rigid structures failing to conform to the human body's curves and the high cost caused by complex structures. Therefore, this utility model retains the stable meshing of the walking gear and rack while adapting to users of different body types through elastic deformation. It has the advantages of simple structure, convenient installation, low manufacturing cost, and effective adaptation to different human body curves and scenario requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0017] Figure 3 This is a structural schematic diagram of the third embodiment of the present utility model.

[0018] Label Explanation: 1. Outer frame; 2. Guide rail; 21. Rack; 3. Massage mechanism; 4. Flexible joint. Detailed Implementation

[0019] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] like Figure 1 and Figure 2 As shown, this utility model discloses an adaptive massage backrest, which includes an outer frame 1, a guide rail 2 and a massage mechanism 3. The massage mechanism 3 is slidably mounted on the guide rail 2. The guide rail 2 is provided with a rack 21 that meshes with the traveling gear of the massage mechanism 3. The two ends of the guide rail 2 are connected to the outer frame 1 through elastic joints 4.

[0022] The outer frame 1 supports the guide rail 2 and the massage mechanism 3, and can be manufactured using injection molding to maintain the overall structural rigidity. The guide rail 2 achieves the directional movement of the massage mechanism 3 through the meshing of the rack 21 with the traveling gear (existing structure) of the massage mechanism 3. The purpose of connecting the guide rail 1 and the outer frame 2 through the flexible joint 4 is to allow the guide rail 2 to deform within a certain range to adapt to external pressure.

[0023] Specifically, the massage mechanism 3 slides through the meshing of the traveling gear and the rack 21 of the guide rail 2. The two ends of the guide rail 2 are connected to the outer frame 1 through elastic joints 4. When the back of the human body applies pressure to the massage backrest, the elastic joint 4 deforms, causing relative displacement between the guide rail 2 and the outer frame 1. This allows the guide rail 2 to drive the massage mechanism 3 to swing back and forth within a range of 0-20mm during its up-and-down movement. This range can be achieved through the specific elastic range of the elastic joint 4. The rack 21 and the traveling gear remain meshed throughout the deformation process, ensuring the stability of the movement trajectory of the massage mechanism 3.

[0024] Compared to existing massage backrests that require two flexible toothed racks and roller bearings for engagement, this invention uses a combination of guide rail 2 and elastic joint 4 to connect the outer frame 1. This ensures stability while reducing the number of parts, resulting in a simpler structure and lower cost. Traditional rigid guide rails cannot deform; this invention uses the deformation of the elastic joint 4 to achieve adaptive adjustment between the guide rail 2 and the massage mechanism 3, allowing for stable movement of the massage mechanism 3 during deformation. This resolves the contradiction between the poor fit of rigid structures and the complexity of flexible designs. The elastic joint 4 automatically adjusts the angle of the guide rail 2 under pressure, ensuring the massage mechanism 3 closely conforms to the body's curves, reducing the feeling of foreign objects during massage and improving comfort.

[0025] like Figure 1 This is one embodiment of an adaptive massage backrest according to the present invention. In this embodiment, there are two guide rails 2, each with an elastic joint 4 connected to one end at its upper and lower ends. The other end of the elastic joint 4 is connected to the outer frame 1. The two guide rails 2 are symmetrically arranged inside the outer frame 1 and are fixedly connected to the guide rails 2 and the outer frame 1 through the elastic joints 4. This allows deformation between the guide rails 2 and the outer frame 1 while maintaining structural stability, thus enabling the massage mechanism 3 to adapt to the human body curve through the deformation generated by the guide rails 2 during massage. The combination of the double guide rails 2 and the elastic joints 4 reduces assembly complexity while achieving flexible adjustment of the guide rails 2. Compared with the single guide rail structure, the symmetrical layout of the double guide rails 2 can effectively reduce the lateral swing amplitude of the massage mechanism during operation.

[0026] like Figure 2 As shown, this is another embodiment of the adaptive massage backrest of the present invention. In this embodiment, the guide rail 2 is a single rail, and both ends of the guide rail 2 are connected to the outer frame 1 through elastic joints 4. The left and right outer sides of the guide rail 1 are respectively provided with racks 21 that mesh with the traveling gears of the massage mechanism 3, and the upper and lower ends of the guide rail 2 are respectively provided with at least one elastic joint 4.

[0027] The guide rail 2 supports the sliding trajectory of the massage mechanism 3. The racks on both sides of the guide rail 2 engage with the traveling gears of the massage mechanism 3 on both sides, enhancing the stability of the massage mechanism's movement. The elastic joints 4 at the upper and lower ends allow the guide rail 2 to deform appropriately within the outer frame 1, adapting to the support requirements of different curved surfaces. Specifically, the guide rail 2 adopts a single-rail structure with racks 21 arranged on both sides, allowing the gears on both sides to engage simultaneously when the massage mechanism 3 runs on the single guide rail 2, preventing offset or jamming caused by unilateral force. The upper and lower ends of the guide rail 2 are connected to the outer frame 1 via elastic joints 4. When the outer frame 1 is subjected to external pressure, the elastic joints 4 allow the guide rail 2 to deform elastically, conforming to the curve of the human back. This embodiment, through the design of a single guide rail with racks on both sides, reduces the number of guide rails 2 while maintaining the stability of the massage mechanism's movement, simplifying the assembly process and reducing material costs. Furthermore, the single guide rail 2 structure achieves simultaneous engagement on both sides without additional retaining components, avoiding the decrease in comfort caused by excessive swaying of the flexible traveling strips.

[0028] like Figure 1 and Figure 2 In the embodiment shown, the elastic joint 4 is a wave-shaped joint, which refers to a wave-shaped connection structure with continuous undulations. The elastic joint 4 can be made of plastic material by molding. The wave-shaped structure enables the elastic joint 4 to deform when subjected to force, thereby adapting to the angle change between the guide rail 2 and the outer frame 1.

[0029] When the outer frame 1 or guide rail 2 shifts due to the curve of the human back or the shape of the seat, the undulating structure of the corrugated elastic joint 4 allows the elastic joint 4 to undergo elastic deformation in the longitudinal, transverse, and torsional directions, enabling the guide rail 2 to adaptively adjust to the deformation of the elastic joint 4. During this process, the elasticity of the corrugated elastic joint 4 provides necessary support while avoiding localized stress concentration caused by rigid connections, thus ensuring that the guide rail 2 and the traveling gear of the massage mechanism 3 maintain stable engagement at all times.

[0030] The connection between the elastic joint 4 and the outer frame 1 and guide rail 2 can be achieved through methods such as integral molding, screw fastening, or snap-fit. Integral molding refers to the elastic joint 4 and the outer frame 1 or guide rail 2 forming an integral structure through injection molding or casting processes, specifically using mold forming. Screw fastening refers to fixing the elastic joint to the outer frame 1 or guide rail 2 using threaded fasteners, specifically using bolts or screws with nuts, thereby ensuring the stability and detachability of the connection. Snap-fit ​​refers to the elastic joint 4 and the outer frame 1 or guide rail 2 achieving mechanical interlocking through a snap-fit ​​structure. This utility model allows for flexible selection of connection methods according to actual needs, reducing the number of parts and assembly steps while ensuring structural stability, effectively reducing production and maintenance costs, and improving the adaptability of the massage backrest to different installation scenarios.

[0031] This utility model discloses an adaptive massage backrest, which also includes a cover. The outer frame, guide rails, and massage mechanism are housed inside the cover, which can be made of fabric or leather. The cover can be made of textiles or leather, for example, by sewing to form a closed or semi-closed structure to conceal internal mechanical components and reduce the feeling of foreign objects in direct contact with the hard structure. The outer frame, guide rails, and massage mechanism are completely enclosed inside the cover, which contacts the external seat or sofa through openings or movable connections. When the cover is made of fabric, breathable mesh can be added to its surface to accommodate prolonged use; if a leather cover is used, a cushioning layer can be added to the inner layer to reduce friction. The cover is secured to the internal structure using Velcro, zippers, or elastic drawstrings, thus ensuring a snug fit while facilitating disassembly and maintenance.

[0032] like Figure 3 As shown, the massage mechanism 3 is located on the front of the outer frame 1, and a support frame 5 is also provided on the back of the outer frame 1. The support frame can be made of metal or plastic mesh. There is a certain deformation gap between the support frame and the outer frame 1. The deformation gap provides sufficient space for the deformation of the elastic joint 4 and the guide rail 2, while also enhancing the structural strength of the outer frame 1. To avoid noise generated when the support frame 5 contacts the massage mechanism 3 (rigid against rigid), a wear-resistant pad is provided on the side of the support frame 5 connected to the outer frame 1. The wear-resistant pad can be made of wear-resistant cloth. The wear-resistant pad can absorb mechanical vibration and reduce wear on the contact surface, effectively solving the wear problem caused by long-term friction between the support frame 5 and the massage mechanism 3, extending the service life of the core components, and reducing the operating noise of the equipment. When the massage mechanism 3 slides along the guide rail 2, the support frame 1 provides it with a reverse support force, while the wear-resistant pad absorbs the vibration energy of the contact surface through elastic deformation, while reducing direct friction between rigid components. Due to the buffering effect of the wear-resistant pad, the noise and wear generated by the massage mechanism 3 during reciprocating motion are effectively suppressed.

[0033] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An adaptive massage backrest, characterized in that, include: The device includes an outer frame, a guide rail, and a massage mechanism. The massage mechanism is slidably mounted on the guide rail, which has a rack that meshes with the traveling gear of the massage mechanism. Both ends of the guide rail are connected to the outer frame via elastic joints.

2. The adaptive massage backrest as described in claim 1, characterized in that: The guide rail has two rails, and each of the upper and lower ends of the two rails is connected to one end of an elastic joint, and the other end of the elastic joint is connected to the outer frame.

3. The adaptive massage backrest as described in claim 1, characterized in that: The guide rail is one in number, and the left and right outer sides of the guide rail are respectively provided with racks that mesh with the walking gears of the massage mechanism. The upper and lower ends of the guide rail are respectively provided with at least one of the elastic joints.

4. An adaptive massage backrest as described in claim 2 or 3, characterized in that: The flexible joint is a corrugated joint.

5. An adaptive massage backrest as described in claim 4, characterized in that: The connection between the elastic joint and the outer frame and guide rail can be any one of the following methods or a combination of two: integral molding, screw fastening, and snap-fit.

6. The adaptive massage backrest as described in claim 1, characterized in that: It also includes an outer cover, inside which the outer frame, guide rail and massage mechanism are housed, and the outer cover is a cloth cover or a leather cover.

7. An adaptive massage backrest as described in claim 1, characterized in that: The massage mechanism is located on the front of the outer frame, and a support frame is also provided on the back of the outer frame, with a deformation gap between the support frame and the outer frame.

8. An adaptive massage backrest as described in claim 7, characterized in that: A wear-resistant pad is also provided between the support frame and the massage mechanism.

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