Variable-angle continuous guide rail structure and massage chair with same

Abstract

The utility model discloses a guide rail structure provides a simple structure, the low manufacturing cost can change the track corner automatically according to the use demand variable angle continuous guide rail structure and the massage seat with the variable angle continuous guide rail structure of having, solved the existing technology in the variable angle continuous guide rail cost high, the complex structure, the poor stability etc. technical problem, it includes the base body and the pressure walking mechanism of being located on the base body, is suspended with the elastic track on the base body, and the pressure walking mechanism is walked on the elastic track through the walking gear engagement.

Description

Technical Field

[0001] This utility model relates to a guide rail structure, and more particularly to a variable angle continuous guide rail structure with a simple structure, low manufacturing cost, and the ability to automatically change the track angle according to usage requirements, as well as a massage chair with the variable angle continuous guide rail structure. Background Technology

[0002] Guide rails, as a conveying structure, are widely used in various fields. Common guide rails are generally linear. When the conveying direction needs to be changed, due to cost considerations, several guide rails are often connected and assembled to achieve this change. For example, in massage chairs or massage beds, due to the physiological curvature of the human body when seated, the guide rail used to conduct the massage mechanism when massaging the legs and back often consists of two sections: a leg guide rail and a back guide rail. However, due to the change in the guide rail angle, the massage mechanism will produce noticeable jumping and abnormal noise when passing through the guide rail connection points, resulting in a deterioration in the massage experience and comfort. Therefore, existing massage chairs and massage beds have improved the guide rail connection points, such as in Chinese Patent C. Patent N116763616A, titled "Guide Rail and Massage Chair Frame," while achieving smooth transitions between guide rails and thus resolving noticeable bouncing and abnormal noises at the guide rail connection points, suffers from an exceptionally complex structure. This not only results in high manufacturing and assembly costs but also leads to low reliability. Furthermore, because both the leg and back guide rails are rigid structures and connections, the massage mechanism cannot automatically compensate for and adjust to changes in the body's physiological curvature during massage. In other words, it cannot adapt to the physiological curvature of the human body or the physiological curvature changes of massagers of different heights and body types. Consequently, each massage session involves a certain degree of uncomfortable massage pressure, resulting in a poor massage experience and comfort. Summary of the Invention

[0003] This utility model mainly provides a variable angle continuous guide rail structure with simple structure and low manufacturing cost, which can automatically change the track angle according to the usage requirements, and a massage chair with the variable angle continuous guide rail structure, which solves the technical problems of high cost, complex structure and poor stability of the existing variable angle continuous guide rail.

[0004] This utility model provides a massage chair with a variable angle continuous guide rail structure that has a simple structure, significantly reduces manufacturing and assembly costs, and can automatically compensate and adjust the massage amplitude according to changes in the physiological curvature of the human body to adapt to different physiological curvatures and changes in physiological curvature, thereby improving massage comfort. It solves the technical problems of high cost, complex structure, poor structural stability, and poor massage experience and comfort of existing variable angle continuous guide rails.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a variable angle continuous guide rail structure, including a base and a pressure walking mechanism disposed on the base, wherein an elastic track is suspended on the base, and the pressure walking mechanism walks on the elastic track through the engagement of a walking gear. A pressure-driven walking mechanism refers to a walking mechanism that exerts pressure on an elastic track while moving along it. Examples include the massage mechanism and its associated track in massage chairs or massage beds. During massage, the massage mechanism moves up and down along the track to massage the back and legs. The track, acting as the carrier of the mechanism, bears the weight of the mechanism and the reaction force during massage. In traditional structures, the weight and reaction force are generally borne by the track and its base. Therefore, the track is rigidly fixed to the base, resulting in a complex structure and assembly process. In this technical solution, the elastic track, which works in conjunction with the pressure-driven walking mechanism, is suspended on the base. The elastic track's deformation capability allows for variable track transmission direction, while its rigidity can bear the weight and reaction force of the pressure-driven walking mechanism itself, enabling continuous track angle changes. This eliminates the need for transition tracks, simplifying the structure. Furthermore, the suspended installation method significantly simplifies the assembly process. Especially when the pressure-driven walking mechanism exerts force, the elastic track's deformation capability allows for automatic compensation of the feed rate, making it more suitable for structures requiring adaptive compensation and adjustment, such as massage mechanisms.

[0006] Preferably, the elastic track comprises a metal elastic base strip with several meshing holes on it, into which the traveling gear meshes. The elastic track can also be made of other non-metallic materials with certain elasticity and strength. Using metal materials is easier to procure and lower in cost. Alternatively, the elastic track can have a raised rack on the metal elastic base strip that meshes with the traveling gear. In this configuration, the metal elastic base strip satisfies both the track's deformation capacity and has sufficient strength to withstand the pressure, weight, and reaction force of the traveling mechanism. Compared to simply setting a raised rack on the elastic base strip, using meshing holes on the elastic base strip for meshing with the traveling gear results in a simpler structure and lower manufacturing cost.

[0007] More preferably, an auxiliary pressure roller is coaxially connected to one side of the traveling gear corresponding to the elastic base strip. The outer diameter of the auxiliary pressure roller is slightly larger than the root circle diameter of the traveling gear. The auxiliary pressure roller and the traveling gear are coaxially arranged, which can avoid wear on the root of the traveling gear teeth, while ensuring the elastic base strip is flat, so that the traveling gear can smoothly cut into the meshing hole for engagement.

[0008] Preferably, a positioning sleeve is rotatably connected to the gear shaft near the traveling gear. The positioning sleeve is equipped with an upper radial limiting needle roller and a lower radial limiting needle roller, and the elastic base strip is rolled and clamped between the upper and lower radial limiting needle rollers. The positioning sleeve is the carrier of the upper and lower radial limiting needle rollers. By setting the upper and lower radial limiting needle rollers, when the traveling gear moves along the elastic track, at least one upper radial limiting needle roller or lower radial limiting needle roller rolls or slides on the front or back of the elastic base strip. That is, when the elastic track turns upward, the upper radial limiting needle roller contacts the front of the elastic base strip, thereby ensuring good meshing between the traveling gear and the meshing hole, and vice versa. Therefore, the setting of the upper and lower radial limiting needle rollers ensures the stability of the pressure traveling mechanism when the track turns, that is, no corner jump or abnormal noise will occur.

[0009] More preferably, three upper radial limiting needle rollers and three lower radial limiting needle rollers are provided on the positioning sleeve in parallel and coplanar arrangement, and both are symmetrically distributed with respect to the gear shaft. Two upper and two lower radial limiting needle rollers can be symmetrically arranged on the positioning sleeve. The addition of the middle upper and lower radial limiting needle rollers can correspond to the auxiliary pressure roller on the other side of the traveling gear, avoid wear on the root of the traveling gear teeth, further ensure the flatness of the elastic base strip, and enable the traveling gear to smoothly engage with the meshing hole.

[0010] More preferably, a rear end face limiting needle roller is provided on the positioning sleeve corresponding to the side of the elastic base strip. The rear end face limiting needle roller plays a lateral limiting role on the elastic base strip, ensuring the stable operation of the pressure travel mechanism.

[0011] More preferably, a protective cover is provided on the positioning sleeve and the outer cover of the traveling gear. The protective cover serves to protect and store the gear.

[0012] Preferably, a front U-shaped slider is provided at the other end of the pressure walking mechanism opposite to the walking gear. The elastic track passes through the opening of the front U-shaped slider, and front rollers are provided on the front U-shaped slider corresponding to the front and back sides of the elastic track. The front U-shaped slider is held in place on the elastic track by the rolling of the front rollers. The front U-shaped slider serves as another support point for the pressure walking mechanism, which can keep the pressure walking mechanism stable. This support point can also be a roller or slider that is directly rolled or slidably mounted on the elastic track. By setting the front U-shaped slider and holding the elastic track, the pressure walking mechanism can be prevented from partially detaching from the elastic track during use or transportation, thus improving safety.

[0013] More preferably, a front-end limiting needle roller is provided on the front U-shaped slider corresponding to the side of the elastic base strip. The front-end limiting needle roller also plays a role in lateral limiting of the elastic base strip, ensuring the stable operation of the pressure travel mechanism.

[0014] A massage chair with a variable-angle continuous guide rail structure is disclosed. The base is the seat frame of the massage chair, and the elastic rails are symmetrically fixed on the left and right sides of the seat frame and backrest frame of the seat frame. The pressure walking mechanism is the massage core of the massage chair. The variable-angle continuous guide rail structure is used in the massage chair. The deformability of the elastic rails allows for changes in the rail transmission direction, while its strength meets the requirements of bearing the weight and reaction force of the pressure walking mechanism itself. This easily achieves smooth, continuous angle changes of the rails without the need for transition rails, resulting in a simple structure. The suspended installation method further simplifies the assembly process. Particularly noteworthy is that when the pressure walking mechanism generates force, the deformation capability of the elastic rails allows for automatic compensation of the feed amount. During the massage, when the physiological curvature of the human body changes, such as at protruding joints or bones, the elastic rails undergo localized micro-deformation to offset the massage feed at that location, achieving a smooth transition in the overall massage and improving massage comfort. Similarly, this structure can adapt to the physiological curvature changes of different users, meeting the needs of people of different heights and weights while achieving the same massage effect—something existing massage chairs cannot achieve or possess.

[0015] Therefore, the variable angle continuous guide rail structure and the massage chair with the variable angle continuous guide rail structure of this utility model have the following advantages:

[0016] 1. An elastic track is suspended, and the deformation capacity of the elastic track enables the change of track transmission direction. The strength of the elastic track enables it to withstand the reaction force of the pressure walking mechanism. There is no need to set up a transition track, and the track can continuously change angle. The structure is simple and the assembly cost is low.

[0017] 2. By setting meshing holes on the elastic base strip of metal to mesh with the traveling gear, the structure is simpler, easier to process, and has lower manufacturing cost, and the meshing connection of the traveling gear is more stable;

[0018] 3. The upper and lower radial limit needle rollers ensure smooth engagement of the traveling gears when the track turns, preventing cornering jumps or abnormal noises.

[0019] 4. When the variable angle continuous guide rail structure is used in massage chairs, it not only achieves a smooth transition at the corners during the massage process, but also adapts to the physiological curvature changes of different users' bodies, automatically compensates for the intensity, and can meet the needs of people of different heights and weights, while achieving the same massage effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a variable angle continuous guide rail structure according to this utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of a partial structure;

[0022] Figure 3 This is a partial structural schematic diagram of a massage chair with a variable angle continuous guide rail structure according to the present invention;

[0023] Figure 4 yes Figure 3 A partial exploded view. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Example 1:

[0026] like Figure 1 and Figure 2As shown, this utility model discloses a variable-angle continuous guide rail structure, including a base (not shown in the figure), with both ends of an elastic rail 3 fixed to the base, so that the elastic rail 3 is in a suspended state. The elastic rail 3 includes a long strip of elastic base 31 made of steel plate, with a plurality of meshing holes 32 evenly spaced along the length direction on the elastic base 31. The pressure walking mechanism 2 can travel along the length direction of the elastic rail 3. When traveling, one end of the mechanism is engaged with the meshing hole 32 through a walking gear 4. An auxiliary pressure roller 8 is coaxially connected to the outer side of the walking gear 4 corresponding to the elastic base 31. A U-shaped positioning sleeve 6 is rotatably connected to the gear shaft 5 inside the gear 4. A U-shaped needle roller positioning sleeve is embedded in the opening of the U-shaped positioning sleeve 6. Three upper radial limiting needle rollers 71 and three lower radial limiting needle rollers 72 are rotatably mounted within the opening of the U-shaped needle roller positioning sleeve. The three upper radial limiting needle rollers 71 and three lower radial limiting needle rollers 72 are all coplanarly and equidistantly arranged, and are symmetrically distributed with respect to the gear shaft 5. When the traveling gear 4 meshes with the meshing hole 32, the elastic base strip 31 rolls and clamps between the upper radial limiting needle rollers 71 and the lower radial limiting needle rollers 72. Two rear end face limiting needle rollers 91 are also mounted on the positioning sleeve 6 corresponding to the inner side of the elastic base strip 31. The rear end face limiting needle rollers 91 are located on both sides of the three upper radial limiting needle rollers 71 and the three lower radial limiting needle rollers 72 and are perpendicular to the elastic base strip 31. At the other end of the pressure walking mechanism 2, opposite to the walking gear 4, is a front U-shaped slider 11. The elastic track 3 passes parallel through the opening of the front U-shaped slider 11. Three front rollers 12 are rotatably mounted parallel to each other at equal distances inside the openings of the front U-shaped slider 11, corresponding to the front and back sides of the elastic track 3. The upper and lower three front rollers 12 correspond one-to-one and are the same size. The rotation axis of the front rollers 12 is perpendicular to the length direction of the elastic track 3. Thus, the front U-shaped slider 11 holds the elastic track 3 by the rolling of the upper and lower three front rollers 12. Two front end face limiting rollers are rotatably connected to the front U-shaped slider 11 corresponding to the inner side of the elastic base 31. The needle 92, with two front-end limiting needle rollers 92 located on both sides of the upper front needle roller 12 and perpendicular to the surface of the elastic base strip 31, causes the elastic base strip 31 to roll and connect with the rear-end limiting needle roller 91 or the front-end limiting needle roller 92 when the elastic track 3 shifts inward. This restricts the inward deviation of the elastic track 3. Similarly, the base corresponding to the rear-end limiting needle roller 91 and the front-end limiting needle roller 92 also has a structure to prevent the elastic track 3 from shifting outward. This structure can be the same as or similar to the rear-end limiting needle roller 91 and the front-end limiting needle roller 92, or other limiting structures can be used to ensure that the pressure walking mechanism 2 travels safely and smoothly on the elastic track 3. For safety, dust prevention, and assembly considerations, a protective cover 10 is installed on the positioning sleeve 6 and the walking gear 4. For the same reason, a protective shell is also installed on the front U-shaped slider 11.

[0027] Example 2:

[0028] like Figure 3 and Figure 4 As shown, this utility model discloses a massage chair with a variable-angle continuous guide rail structure. The base is the seat support of the massage chair (not shown in the figure). The elastic rail 3 is symmetrically fixed on the left and right sides of the seat support and backrest support of the seat support. The pressure travel mechanism 2 is the massage core of the massage chair. The rest is exactly the same as in Embodiment 1.

[0029] The specific embodiments described herein are merely illustrative examples of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A variable-angle continuous guide rail structure, comprising a base and a pressure-driven walking mechanism (2) disposed on the base, characterized in that: An elastic track (3) is suspended on the base (1), and the pressure walking mechanism (2) moves on the elastic track (3) through the engagement of the walking gear (4).

2. The variable angle continuous guide rail structure according to claim 1, characterized in that: The elastic track (3) includes an elastic base strip (31) made of metal, and several meshing holes (32) are provided on the elastic base strip (31). The traveling gear (4) meshes with the meshing holes (32).

3. The variable angle continuous guide rail structure according to claim 2, characterized in that: An auxiliary pressure roller (8) is coaxially connected to one side of the traveling gear (4) corresponding to the elastic base strip (31).

4. The variable angle continuous guide rail structure according to claim 2, characterized in that: A positioning sleeve (6) is rotatably connected to the gear shaft (5) near the walking gear (4). The positioning sleeve (6) is provided with an upper radial limiting needle roller (71) and a lower radial limiting needle roller (72). The elastic base strip (31) is rolled and clamped between the upper radial limiting needle roller (71) and the lower radial limiting needle roller (72).

5. The variable angle continuous guide rail structure according to claim 4, characterized in that: Three upper radial limiting needle rollers (71) and three lower radial limiting needle rollers (72) are provided on the positioning sleeve (6) in parallel and coplanar manner, and both are symmetrically distributed on the left and right sides relative to the gear shaft (5).

6. The variable angle continuous guide rail structure according to claim 4, characterized in that: A rear end face limiting needle roller (91) is provided on the positioning sleeve (6) corresponding to the side of the elastic base strip (31).

7. The variable angle continuous guide rail structure according to claim 4, characterized in that: A protective cover (10) is installed on the outer cover of the positioning sleeve (6) and the traveling gear (4).

8. The variable angle continuous guide rail structure according to claim 1, characterized in that: At the other end of the pressure walking mechanism (2) opposite to the walking gear (4), there is a front U-shaped slider (11). The elastic track (3) passes through the opening of the front U-shaped slider (11). The front U-shaped slider (11) corresponding to the front and back sides of the elastic track (3) is provided with a front roller (12). The front U-shaped slider (11) is rolled and clamped on the elastic track (3) by the front roller (12).

9. The variable angle continuous guide rail structure according to claim 8, characterized in that: A front end face limiting roller (92) is provided on the front U-shaped slider (11) corresponding to the side of the elastic track (3).

10. A massage chair with the variable angle continuous guide rail structure as described in claim 1, characterized in that: The base is the seat frame of the massage chair, and the elastic track (3) is symmetrically fixed on the left and right sides of the seat frame and backrest frame of the seat frame. The pressure walking mechanism (2) is the massage core of the massage chair.

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