A trackless massage chair

Abstract

This invention relates to the field of smart home technology and discloses a trackless massage chair, including a chair frame, a massage mechanism, and a flexible transmission assembly. The chair frame includes a backrest and a seat frame connected to each other, with an adjustable massage angle between the backrest and the seat frame. A transmission channel is provided along the length of the inner side of the chair frame, and the massage mechanism and the flexible transmission assembly are disposed within the transmission channel. The massage mechanism is mounted on a flexible conveyor belt of the flexible transmission assembly. This massage chair, by using a flexible conveyor belt, allows the user to adaptively adjust the massage intensity during the massage, making the massage more comfortable and improving the user experience. The flexible conveyor belt is flexible and adaptively adjusts its tension when the massage chair angle is adjusted, allowing the user to lie flat for the massage, further enhancing the user experience.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, specifically to a trackless massage chair. Background Technology

[0002] Massage chairs use mechanical rolling and squeezing to provide massage. For people who sit for long periods of time while working or studying, massage can improve blood circulation, alleviate back pain and prevent illnesses, improve sleep quality, relieve fatigue, improve posture, and promote overall health.

[0003] Currently, most massage chairs on the market use rollers on the massage mechanism to move up and down along the guide rail. The massage mechanism can only move along the guide rail in a fixed path, and cannot provide massage while lying down. Even those that can provide massage while lying down have the same massage intensity, and cannot adapt to the body to provide a massage experience, resulting in a poor experience. Summary of the Invention

[0004] The purpose of this invention is to provide a trackless massage chair that can adaptively massage the human body, resulting in a better massage effect and a superior user experience.

[0005] To achieve the above objectives, the present invention provides a trackless massage chair, comprising:

[0006] A chair frame, comprising a backrest and a seat frame connected to each other, wherein the massage angle between the backrest and the seat frame is adjustable, and a transmission channel is provided on the inner side of the chair frame along its length.

[0007] A massage mechanism, wherein the massage mechanism is disposed within the transmission channel;

[0008] A flexible conveying assembly is disposed within the conveying channel. The massage mechanism is disposed on the flexible conveyor belt of the flexible conveying assembly. The flexible conveyor belt is used to drive the massage mechanism to move back and forth within the conveying channel. Under the pressure of the human body, the massage mechanism causes the flexible conveyor belt to deform in order to achieve adaptive massage of the human body.

[0009] Preferably, the flexible conveying assembly includes a drive mechanism disposed within the conveying channel and two flexible conveying mechanisms symmetrically disposed on both sides of the conveying channel. Each flexible conveying mechanism includes a plurality of pulleys located on the inner wall of the chair frame and disposed along the length of the conveying channel, a flexible conveyor belt disposed on the plurality of pulleys, and a tensioning structure disposed at the connection between the back frame and the chair frame and drivenly connected to the flexible conveyor belt. The drive mechanism is drivenly connected to the two flexible conveying mechanisms, and the tensioning structure is used to tension the flexible conveyor belt when the angle of the chair frame changes.

[0010] Preferably, the plurality of pulleys includes two end pulleys and a plurality of intermediate pulleys, the plurality of intermediate pulleys being staggered and distributed on the inner and outer sides of the flexible conveyor belt, and at least one of the plurality of intermediate pulleys being a movable pulley that can slide relative to the vertical direction of the flexible conveyor belt.

[0011] Preferably, the flexible conveyor assembly further includes at least one adjustment mechanism, which includes a drive unit and two transmission units. The two transmission units respectively drive two symmetrical movable pulleys to slide. The transmission unit includes a drive shaft, a worm gear, a worm, and a slider. The drive unit is disposed on the chair frame. One end of the drive shaft is connected to the output end of the drive unit, and the other end is rotatably connected to the chair frame. The worm gear is disposed on the drive shaft. The worm gear meshes with the worm gear and is rotatably connected to the side of the chair frame. The slider is slidably connected to the side wall of the chair frame and threaded onto the outside of the worm gear, and can slide relative to the vertical direction of the flexible conveyor belt. The movable pulley is disposed on the slider.

[0012] Preferably, the tensioning structure includes an elastic element, a tensioning wheel, and two guide telescopic rods. One end of the elastic element is fixedly connected to the crossbar at the bottom of the seat frame. The tensioning wheel is rotatably connected inside a U-shaped connector. The other end of the elastic element is connected to the U-shaped connector. The flexible conveyor belt passes through the U-shaped connector and contacts the bottom surface of the tensioning wheel. The two guide telescopic rods are symmetrically arranged on both sides of the elastic element. One end of each guide telescopic rod is connected to the crossbar at the bottom of the seat frame, and the other end is connected to the bottom of the U-shaped connector.

[0013] Preferably, the chair frame further includes a headrest, which is rotatably connected to the end of the backrest away from the seat frame, and angle adjustment mechanisms are provided at the connection between the backrest and the seat frame and at the connection between the backrest and the headrest.

[0014] Preferably, the angle adjustment mechanism includes a linear drive module rotatably disposed at the bottom of the seat frame or the back frame, and the output end of the linear drive module is rotatably connected to the bottom support of the corresponding back frame or the head frame.

[0015] Preferably, the chair frame further includes a leg support, which is rotatably connected to the end of the seat frame away from the backrest.

[0016] Preferably, the chair frame further includes a linkage mechanism, which includes a first link, a second link, and a roller. One end of the first link is rotatably connected to the bottom support of the back frame, and the other end is rotatably connected to the side of the second link. One end of the second link is rotatably connected to the end of the seat frame near the lower leg support, and the other end is connected to the roller. The roller contacts the lower leg support.

[0017] Preferably, the trackless massage chair further includes limit sensors disposed at both ends of the transmission channel.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] By incorporating a flexible conveyor belt, the massage intensity can be adaptively adjusted during the massage, making the massage more comfortable and enhancing the user experience. The flexible conveyor belt is flexible and its tension will adaptively adjust when the angle of the massage chair is adjusted, allowing the user to lie flat for the massage, further improving the user experience.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 A schematic diagram of a trackless massage chair according to an embodiment of the present invention is shown.

[0023] Figure 2 A schematic diagram of the end pulley structure of a trackless massage chair according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram showing the connection between the backrest and headrest of a trackless massage chair according to an embodiment of the present invention is shown.

[0025] Figure 4 An embodiment of the present invention is shown. Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 An embodiment of the present invention is shown. Figure 1 Enlarged view of point B in the middle;

[0027] Figure 6 A schematic diagram showing the connection between the seat frame and the leg support of a trackless massage chair according to an embodiment of the present invention is shown. Detailed Implementation

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] Please refer to Figure 1This embodiment provides a trackless massage chair, including a chair frame 1, a massage mechanism 2, and a flexible conveying assembly 3. The chair frame 1 includes a backrest 11 and a seat frame 12 connected to each other. The massage angle between the backrest 11 and the seat frame 12 is adjustable. A conveying channel is provided along the length of the inner side of the chair frame 1. The massage mechanism 2 and the flexible conveying assembly 3 are both disposed within the conveying channel. The massage mechanism 2 is mounted on the flexible conveyor belt 322 of the flexible conveying assembly 3. The flexible conveyor belt 322 is used to move the massage mechanism 2 back and forth within the conveying channel. Under the pressure of the human body, the massage mechanism 2 causes the flexible conveyor belt 322 to deform, thereby achieving adaptive massage of the human body.

[0030] During the massage, the user can sit on the seat frame 12 and lean against the backrest 11. The transmission channel runs through the entire chair frame 1, allowing for a full-body massage. Once fully seated, the user can adjust the angle as needed. The user will then contact and press the massage rollers on the massage mechanism. Due to the flexibility of the flexible conveyor belt 322, it will deform to a certain extent, thus adaptively adjusting the massage intensity for a more comfortable user experience. Furthermore, because the flexible conveyor belt itself is flexible, there is no interference when adjusting the angle, allowing the user to lie flat for a massage, enabling complete relaxation.

[0031] Specifically, the flexible conveying assembly 3 includes a drive mechanism 31 disposed in the conveying channel and two flexible conveying mechanisms 32 symmetrically disposed on both sides of the conveying channel. Each flexible conveying mechanism 32 includes a plurality of pulleys 321 disposed on the inner wall of the chair frame 1 along the length of the conveying channel, a flexible conveyor belt 322 disposed on the pulleys 321, and a tensioning structure 323 disposed at the connection between the backrest 11 and the chair frame 12 and drivenly connected to the flexible conveyor belt 322. The drive mechanism 31 is drivenly connected to the two flexible conveying mechanisms 32, and the tensioning structure 323 is used to tension the flexible conveyor belt 322 when the angle of the chair frame 1 changes.

[0032] In this embodiment, the flexible conveying mechanism 32 is symmetrically arranged on the left and right sides of the conveying channel, and each of the two flexible conveyor belts 322 has a mounting ear on its opposite side. The massage mechanism 2 is connected to the flexible conveyor belt 322 through the mounting ear.

[0033] The plurality of pulleys 321 include two end pulleys and multiple intermediate pulleys. These intermediate pulleys are spaced and staggered on the inner and outer sides of the flexible conveyor belt 322. At least one of the intermediate pulleys is a movable pulley that can slide relative to the vertical direction of the flexible conveyor belt 322. This alters the movement trajectory of the massage mechanism 2, allowing it to move closer to or further from the user. This enables adjustments to the massage intensity based on user needs, improving the practicality of the massage chair and better meeting user requirements. The pulleys 321 also serve to limit and shape the flexible conveyor belt 322.

[0034] In this embodiment, the drive mechanism 31 can be a geared motor that synchronously drives two drive shafts to rotate. The two drive shafts drive two end pulleys located at one end of the conveyor channel to rotate, thereby synchronously driving the two flexible conveyor belts 322 to move. The two flexible conveyor belts 322 synchronously drive the massage core 2 to perform massage. This makes the operation more stable, ensures the massage intensity of the massage core 2, and improves the massage effect.

[0035] like Figure 2 As shown, baffles are provided on both sides of the end pulley to prevent the flexible conveyor belt 322 from detaching from control, thereby improving the safety of the massage chair and reducing the probability of malfunction. Furthermore, in this embodiment, the flexible conveyor belt 322 can be a belt or a chain. When the flexible conveyor belt 322 is a belt, the pulley 321 is a pulley; when the flexible conveyor belt 322 is a chain, the pulley 321 is a sprocket.

[0036] In this embodiment, one or more movable pulleys can be provided as needed. Multiple movable pulleys can correspond to the back, waist, hips, and neck of the human body, so as to provide targeted massage, enhance the use value of the massage chair, and better achieve the effect of relieving fatigue.

[0037] like Figure 3 and Figure 4 As shown, the flexible conveyor assembly 3 also includes at least one adjustment mechanism 33. The adjustment mechanism 33 includes a drive unit 331 and two transmission units. The two transmission units drive two symmetrical movable pulleys to slide. The transmission units include a drive shaft 332, a turbine 333, a worm gear 334, and a slider 335. The drive unit 331 is mounted on the chair frame 1. One end of the drive shaft 332 is connected to the output end of the drive unit 331, and the other end is rotatably connected to the chair frame 1. The turbine 333 is mounted on the drive shaft 332. The worm gear 334 meshes with the turbine 333 and is rotatably connected to the side of the chair frame 1. The movable pulley is mounted on the slider 335. The slider 335 is slidably connected to the side wall of the chair frame 1 and threaded onto the outside of the worm gear 334. It can slide relative to the vertical direction of the flexible conveyor belt 322 to drive the massage core 2 closer to or further away from the user to adjust the massage intensity.

[0038] In this embodiment, taking the movable pulley at the waist as an example, the movable pulley is set on the back frame 11, and a mounting frame is set on the back of the back frame 11. The adjustment mechanism 33 is mounted on the mounting frame. The drive unit 311 is a geared motor, which synchronously drives two transmission shafts 332 to rotate. The rotation of the two transmission shafts 332 drives the worm gear 333 to rotate. The worm gear 333 drives the worm 334 to rotate. The rotation of the worm gear 334 drives the slider 335 to slide up and down, thereby driving the two movable pulleys to move up and down. This causes the two flexible conveyor belts 322 to move up and down, moving the massage core 2 closer to or away from the user. Ultimately, the massage intensity is adjusted by adjusting the conveying trajectory of the massage core 2. In this way, the structure is simple, the transmission is more stable, the effect is better, and the cost is saved by synchronously driving two transmission units with one geared motor to move two flexible conveyor belts 322. Specifically, a guide groove is set on the side beam of the back frame 11, and the sliding block 335 slides in the guide groove. A bearing seat for the rotation of the transmission shaft 332 and the worm gear 334 is set on the side beam of the back frame 11. In addition, in order to prevent the slider 335 from colliding with the two ends of the chute or to control the adjustment distance of the flexible conveyor belt 322, sensors can be installed at both ends of the slider 335 for limiting.

[0039] Please refer to Figure 5 The tensioning structure 323 includes an elastic element 3231, a tensioning wheel 3232, and two guide telescopic rods 3233. One end of the elastic element 3231 is fixedly connected to the crossbar at the bottom of the base frame 12. The tensioning wheel 3232 is rotatably connected inside the U-shaped connector. The other end of the elastic element 3231 is connected to the U-shaped connector. The flexible conveyor belt 322 passes through the U-shaped connector and contacts the bottom surface of the tensioning wheel 3232. The two guide telescopic rods 3233 are symmetrically arranged on both sides of the elastic element 3231. One end of the guide telescopic rod 3233 is connected to the crossbar at the bottom of the base frame 12, and the other end is connected to the bottom of the U-shaped connector. The guide telescopic rods 3233 are used to guide the elastic force of the elastic element 3231, preventing the flexible conveyor belt 322 from swaying left and right during movement and improving the stability of the transmission.

[0040] Specifically, the elastic element 3231 can be a tension spring, which always remains in an extended state. This allows the tensioning wheel 3232 to always tension the flexible conveyor belt 322, enabling the flexible conveyor belt 322 to operate stably.

[0041] like Figure 4 and Figure 6 As shown, the chair frame 1 also includes a headrest 13, which is rotatably connected to the end of the backrest 11 away from the seat frame 12. An angle adjustment mechanism 14 is provided at the connection between the backrest 11 and the seat frame 12 and at the connection between the backrest 11 and the headrest 13. This allows the head massage angle to be adjusted, thereby massaging the head, increasing the massage range, and making the massage chair more widely applicable.

[0042] The angle adjustment mechanism 14 includes a linear drive module rotatably mounted on the bottom of the base frame 12 or the back frame 11. The output end of the linear drive module is rotatably connected to the bottom support of the corresponding back frame 11 or head frame 13. The linear drive module can be an electric actuator, a pneumatic cylinder, or a hydraulic cylinder, etc. This embodiment uses an electric actuator.

[0043] Preferably, the chair frame 1 also includes a leg support 15, which is rotatably connected to the end of the seat frame 12 away from the backrest 11. This ensures that the user can lie completely flat while experiencing the massage, and can also massage the calves, truly achieving a full-body massage, improving the user's experience, and more comprehensively promoting blood circulation to achieve a better massage effect.

[0044] In this embodiment, the back frame 11, seat frame 12, head frame 13, and lower leg support 15 are all rotatably connected via a pivot. When adjusting the angle, each support rotates around the pivot, and both ends of the electric actuator are connected to the pivot via lugs. Taking the back frame 11 and head frame 13 as examples, one end of the electric actuator is rotatably connected to the mounting bracket on the back of the back frame 11, and the back of the head frame 13 is provided with a U-shaped bracket. The other end of the electric actuator is rotatably connected to the crossbar of the U-shaped bracket. When adjusting the angle, the electric actuator extends or retracts, causing the head frame 13 to rotate around the pivot, thereby achieving angle adjustment. The arrangement between the seat frame 12 and the back frame 11 is the same. The electric actuator is located on the bottom support of the seat frame 12, and the bottom of the back frame 11 is also provided with a U-shaped bracket. The connection method is the same as that between the back frame 11 and the head frame 13.

[0045] Please refer to Figure 6 The chair frame 1 also includes a linkage mechanism 16, which includes a first link 161, a second link 162, and a roller 163. One end of the first link 161 is rotatably connected to the bottom support (U-shaped support) of the backrest 11, and the other end is rotatably connected to the side of the second link 162. One end of the second link 162 is rotatably connected to the end of the seat frame 12 near the leg support 15, and the other end is connected to the roller 163, which contacts the leg support 15. Initially, the leg support 15 is drooping, and there is a certain angle between the seat frame 12 and the backrest 11. When the electric actuator adjusts the angle between the seat frame 12 and the backrest 11, it simultaneously lifts the leg support 15. When fully reclined, the leg support 15 and the seat frame 12 remain basically horizontal. This method of using a single electric actuator to simultaneously adjust the angles between the backrest 11, the seat frame 12, and the leg support 15 reduces the number of components and lowers production costs.

[0046] In addition, an electric actuator can be installed between the lower leg support 15 and the seat frame 12 to adjust the angle between the lower leg support 15 and the seat frame 12 separately. The installation method of the electric actuator is the same as the installation method between the seat frame 12 and the back frame 11.

[0047] Preferably, the trackless massage chair also includes limit sensors 4 disposed at both ends of the transmission channel. The limit sensors 4 can prevent the massage core 2 from colliding with the end of the chair frame 1, thereby improving the safety of the massage. Moreover, the limit sensors 4 are electrically connected to the geared motor on the flexible transmission assembly 3. When the massage core 2 approaches the limit sensor 4, the limit sensor 4 sends a signal to the geared motor, causing the geared motor to stop working or rotate in the reverse direction, thereby driving the massage core 2 to stop or reverse the massage.

[0048] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0049] By incorporating a flexible conveyor belt 322, the massage intensity can be adaptively adjusted during the massage, making the massage more comfortable and enhancing the user experience. The flexible conveyor belt 322 is flexible and its tension will adaptively adjust when the angle of the massage chair is adjusted, allowing the user to lie flat for the massage, further improving the user experience.

[0050] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention. Furthermore, it should be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0051] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A trackless massage chair, characterized by, The utility model relates to a massage chair, including: Chair frame, the chair frame includes the back frame and the seat frame that are connected with each other, the massage angle between the back frame and the seat frame is adjustable, and the inner side of the chair frame is provided with a conveying channel along the length direction thereof; Massage core, the massage core is arranged in the conveying channel; Flexible conveying assembly, the flexible conveying assembly is arranged in the conveying channel, the massage core is arranged on the flexible conveying belt of the flexible conveying assembly, the flexible conveying belt is used to drive the massage core to move back and forth in the conveying channel, and the massage core drives the flexible conveying belt to deform under the extrusion of human body to realize self-adaption and massage to human body; The flexible conveying assembly includes a driving mechanism arranged in the conveying channel, two flexible conveying mechanisms symmetrically arranged on both sides of the conveying channel, the flexible conveying mechanism includes a plurality of pulleys arranged on the inner side wall of the chair frame along the length direction of the conveying channel, a flexible conveying belt arranged on the plurality of pulleys, and a tensioning structure arranged at the connection between the back frame and the seat frame and in transmission connection with the flexible conveying belt, the driving mechanism is in transmission connection with the two flexible conveying mechanisms, and the tensioning structure is used to tension the flexible conveying belt when the angle of the chair frame changes.

2. The rail-less massage chair according to claim 1, characterized in that, The plurality of pulleys include two end pulleys and a plurality of intermediate pulleys, the plurality of intermediate pulleys are distributed on the inner and outer sides of the flexible conveying belt in a staggered manner, and at least one of the plurality of intermediate pulleys can slide relative to the vertical direction of the flexible conveying belt.

3. The rail-less massage chair according to claim 2, characterized in that, The flexible conveying assembly further includes at least one adjusting mechanism, the adjusting mechanism includes a driving part and two transmission parts, the two transmission parts drive the two symmetrical dynamic pulleys to slide respectively, the transmission part includes a transmission shaft, a turbine, a worm and a sliding block, the driving part is arranged on the chair frame, one end of the transmission shaft is in transmission connection with the output end of the driving part, the other end is in rotary connection with the chair frame, the turbine is arranged on the transmission shaft, the worm is in meshing connection with the turbine and can be rotatably connected to the side surface of the chair frame, the sliding block is slidably connected to the side wall of the chair frame and is threadedly sleeved on the outer side of the worm, can slide relative to the vertical direction of the flexible conveying belt, and the dynamic pulley is arranged on the sliding block.

4. The rail-less massage chair according to claim 1, characterized in that, The tensioning structure includes an elastic member, a tensioning wheel and two guide telescopic rods, one end of the elastic member is fixedly connected with the cross bar at the bottom of the seat frame, the tensioning wheel is rotatably connected in the U-shaped connecting piece, the other end of the elastic member is connected with the U-shaped connecting piece, the flexible conveying belt passes through the U-shaped connecting piece and is in contact with the bottom surface of the tensioning wheel, and the two guide telescopic rods are symmetrically arranged on the two sides of the elastic member, one end of the guide telescopic rod is connected with the cross bar at the bottom of the seat frame, and the other end is connected with the bottom of the U-shaped connecting piece.

5. The rail-less massage chair according to claim 1, wherein, The chair frame further includes a headrest, the headrest is rotatably connected to one end of the back frame away from the seat frame, and angle adjusting mechanisms are arranged at the connection between the back frame and the seat frame and the connection between the back frame and the headrest.

6. The rail-less massage chair according to claim 5, characterized in that, The angle adjusting mechanism comprises a linear drive module arranged rotatably on the bottom of the seat frame or the back frame, and an output end of the linear drive module is rotatably connected with the bottom support of the corresponding back frame or head frame.

7. The rail-less massage chair according to claim 1, wherein, The chair frame further comprises a shank support rotatably connected with one end of the seat frame away from the back frame.

8. The rail-less massage chair according to claim 7, characterized in that, The chair frame further comprises a connecting rod mechanism comprising a first connecting rod, a second connecting rod and a roller, one end of the first connecting rod is rotatably connected with the bottom support of the back frame, the other end of the first connecting rod is rotatably connected with the side of the second connecting rod, one end of the second connecting rod is rotatably connected with one end of the seat frame close to the shank support, the other end of the second connecting rod is connected with the roller, and the roller is in contact with the shank support.

9. The trackless massage chair of any of claims 1-8, wherein, The rail-free massage chair further comprises a limiting sensor arranged at both ends of the conveying channel.

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