Sliding groove type null-space linkage massage chair frame
Through the design of the chute-type zero-space linkage massage chair frame, the arc-shaped motion trajectory of the backrest is adjusted by using the combination of arc guide grooves and rollers, which solves the limitations of existing massage chairs in zero-space adjustment, and realizes the compact, aesthetic and functional improvement of the massage chair.
Patent Information
- Application Number
- CN202421549675.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-02
AI Technical Summary
When the existing massage chair adjusts the lying position of the backrest, the setting of the electric push rod is limited, making it difficult to achieve the zero-space adjustment function, especially when the space below the seat is limited.
The chute-type zero-space linkage massage chair frame design is adopted. Through the cooperation of arcuate guide grooves and rollers, the electric push rod is hinged on the support platform and the backrest frame to adjust the backrest along the arc motion trajectory and avoid the electric push rod occupying the base space.
The massage chair is adjusted zero space between the standing and lying down posture, avoid collision with objects in the rear, keep the center of gravity of the backrest frame stable, and reduce the base structure requirements, which are suitable for leisure and office scenes.
Smart Images
Figure CN222899611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of health massage equipment, in particular to a chute-type zero-space linkage massage chair frame. Background Art
[0002] At present, the chair frames of massage chairs with sitting posture adjustment functions in the prior art generally include a base, a backrest frame movably connected to the base, and an electric push rod connected between the base and the backrest frame. The electric push rod can drive the backrest frame to tilt and rotate, so as to adjust the upright or reclined posture of the backrest frame. Since the top end of the backrest frame will move backward a certain distance during the adjustment process towards the reclined posture, there are certain requirements for the placement space of the massage chair. Other objects cannot be placed behind the massage chair, and a certain distance needs to be maintained between the massage chair and the wall when the massage chair is placed against the wall. To solve this problem, the existing massage chairs currently adopt a special movable connection method between the backrest frame and the base, so that the electric push rod can drive the backrest frame to move forward while driving the backrest frame to adjust towards the reclined posture, which can avoid the collision between the backrest frame of the massage chair and the objects behind, save the use space of the massage chair, and realize the function of zero-space (also known as zero-wall) posture adjustment.
[0003] In the above-mentioned traditional massage chair structure, the electric push rod used to control and realize the zero-space posture adjustment function of the massage chair is usually arranged under the seat part or the lower rear part of the backrest frame. This layout method is applicable to most structural forms of massage chairs, but for massage chairs with limited space under the seat part, the setting of the electric push rod is greatly restricted. For example, for massage chairs with the structure of a conventional swivel chair (such as a leisure chair, an office chair), due to its unique single-axis support rotation structure form and appearance limitations, it is not suitable to set an electric push rod on the base part; and because the massage mechanism usually has to run under the seat part, it is also very difficult to arrange the electric push rod from the upper part of the base to under the seat part. Summary of the Invention
[0004] The utility model provides a chute-type zero-space linkage massage chair frame, which can realize the zero-space adjustment function of the upright or reclined posture of the backrest frame while keeping the bottom shape of the massage chair simple, compact and beautiful.
[0005] The utility model relates to a chute-type zero-space linkage massage chair frame, which comprises a base and a backrest frame movably arranged on the base. An electric push rod is arranged between the base and the backrest frame. The base comprises a chassis, a support column arranged at the upper end of the chassis, and a support platform arranged at the upper part of the support column. The chassis and the support platform are only connected by the support column, so the space occupation is small, and the appearance of the base is very compact and beautiful. The lower end of the backrest frame comprises a movable bracket. A guiding movement fit is formed between the support platform and the movable bracket through an arc-shaped first guide groove and rollers. The electric push rod is respectively connected with the support platform and the backrest frame and can drive the backrest frame to move along an arc-shaped movement track. One end of the electric push rod is hinged to the rear end of the support platform, and the other end of the electric push rod is hinged to the upper rear part of the backrest frame. The electric push rod adopting this connection mode does not occupy the space of the base. When the electric push rod moves in the extending direction, it can drive the backrest frame to move backward along the arc-shaped movement track and adjust towards the standing posture. When the electric push rod moves in the shortening direction, it can drive the backrest frame to move forward along the arc-shaped movement track and adjust towards the lying posture. While the backrest frame moves along the arc-shaped movement track, its pitching angle will also change accordingly.
[0006] When the backrest frame is driven to move along the arc-shaped track, it can realize the adjustment between the standing and lying use postures (height postures) of the backrest frame. Especially during the adjustment process from the standing posture to the lying posture, the backrest frame will also move forward and will not collide with the objects or walls behind the massage chair, realizing the function of zero-space adjustment of the standing and lying postures of the massage chair.
[0007] In addition, since the backrest frame will generate displacement in the front-back direction during the posture adjustment process, this design can not only avoid interference with the objects behind the massage chair, but also help to maintain the stability of the overall center of gravity of the backrest frame, prevent the massage chair from tipping over, which can also reduce the requirements for the supporting area between the base and the ground, and can also reduce the requirements for the structural strength and quantity of the support columns, making the base more compact and beautiful.
[0008] Furthermore, two groups of the above-mentioned rollers are symmetrically arranged on the left and right sides of the support platform. Each group of rollers comprises at least two rollers distributed along the front-back direction of the support platform. These rollers are rotationally connected to the side part of the support platform through pin shafts. The first guide grooves are symmetrically arranged at the positions on both sides of the lower end of the movable bracket. The rollers on both sides of the support platform respectively form a guiding movement fit with the first guide grooves on both sides of the movable bracket, so as to guide the backrest frame to move along the arc-shaped movement track. In addition, there is also a supporting cooperation relationship between the first guide groove and the rollers, which can support the overall weight of the backrest frame.
[0009] Further, both sides of the backrest frame include two symmetrically arranged guide rails. The guide rails include second guide grooves. Between the second guide grooves of the two guide rails, there is a massage mechanism that can move along the second guide grooves, enabling mobile massage of the user's head, neck, shoulders, back, waist, hips, legs and other parts. The electric push rod installed at this position in the present utility model will not affect the traveling space of the massage mechanism, and can ensure that the massage mechanism has a large traveling range.
[0010] Further, a support rib is connected between the two guide rails. The support rib has a strengthening effect on the two guide rails, ensuring that the overall backrest frame has a high structural strength. The other end of the electric push rod is hinged to the support rib, making the overall structure more compact.
[0011] Further, the chassis is disc-shaped, and the support column is arranged at the center position of the upper end of the chassis, improving the stability of the massage chair and the aesthetic appearance of the base.
[0012] Further, the support column includes an upper part and a lower part arranged coaxially. The upper part and the lower part of the support column form a rotational connection and cooperation, enabling the overall rotation of the backrest frame, making the massage chair more suitable for leisure and office use scenarios.
[0013] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and compact. In particular, the base structure is very simple and beautiful, occupying a small space. The present utility model adjusts the use posture of the massage chair electrically. During the process of adjusting the use posture, the backrest frame will generate a displacement in the front-back direction, enabling the zero-space (zero-wall) adjustment function of the use posture of the massage chair. The user can adjust the pitching angle of the backrest frame according to needs, and can maintain the stability of the overall center of gravity of the backrest frame during the adjustment process, reducing the structural requirements for the base, thereby reducing the manufacturing cost, and making the massage chair of the present utility model more suitable for leisure and office use scenarios. Description of the Drawings
[0014] Figure 1 It is a side view of the embodiment of the present utility model in the lying-down posture;
[0015] Figure 2 It is a three-dimensional view of the embodiment of the present utility model in the standing-up posture;
[0016] Figure 3 It is an exploded view of the structure of the embodiment of the present utility model;
[0017] Figure 4 It is a side view of the embodiment of the present utility model in the standing-up posture;
[0018] Figure 5 It is an exploded view of the structure of the base of the embodiment of the present utility model. Detailed Embodiment
[0019] An embodiment of the utility model, a sliding groove type zero-space linkage massage chair frame, is as follows Figures 1-5 shown, including a base 1 and a backrest frame 2 movably arranged on the base 1. An electric push rod 3 is arranged between the base 1 and the backrest frame 2. The base 1 includes a chassis 11, a support column 12 arranged at the upper end of the chassis 11, and a support platform 13 arranged at the upper part of the support column 12. The chassis 11 and the support platform 13 are only connected by the support column 12, occupying less space. The appearance of the base 1 is very compact and beautiful. The lower end of the backrest frame 2 includes a movable bracket 21. A guiding movement cooperation is formed between the support platform 13 and the movable bracket 21 through an arc-shaped first guide groove 211 and a roller 131.
[0020] In this embodiment, two groups of the rollers 131 are symmetrically arranged on the left and right sides of the support platform 13. Each group of rollers 131 includes two rollers 131 arranged along the front and back directions of the support platform 13. These rollers 131 are rotatably connected to the side part of the support platform 13 through a pin shaft 132. The first guide grooves 211 are symmetrically arranged at the two side positions of the lower end of the movable bracket 21. The rollers 131 on both sides of the support platform 13 respectively form a guiding movement cooperation with the first guide grooves 211 located on both sides of the movable bracket 21, so as to guide the backrest frame 2 to move along an arc-shaped movement track. In addition, the openings of the two first guide grooves 211 are arranged on the inner side, and there is also a support cooperation relationship between the first guide grooves 211 and the rollers 131, which can support the overall weight of the backrest frame 2. The concave opening of the arc-shaped structure of the first guide groove 211 is arranged upward, and its upper part is concave. In other embodiments, the rollers 131 can also be arranged on the movable bracket 21, and the first guide grooves 211 can be arranged on the support platform 13, and the same effect can also be achieved.
[0021] The electric push rod 3 is respectively connected to the support platform 13 and the backrest frame 2 and can drive the backrest frame 2 to move along an arc-shaped movement track. The fixed end of the electric push rod 3 is hinged to the rear end of the support platform 13. An ear seat for hinged cooperation is arranged at the rear end of the support platform 13. The free end of the electric push rod 3 is hinged to the upper rear part of the backrest frame 2. The electric push rod 3 with this connection method does not occupy the space of the base 1. When the electric push rod 3 moves in the extending direction, it can drive the backrest frame 2 to move backward along an arc-shaped movement track and rise to an upright posture. When the electric push rod 3 moves in the shortening direction, it can drive the backrest frame 2 to move forward along an arc-shaped movement track and descend to a lying posture. While the backrest frame 2 moves along an arc-shaped movement track, its pitching angle will also change accordingly. In addition, since the power part of the electric push rod 3 is closer to the fixed end, using this connection method can reduce the center of gravity of the massage chair and improve stability.
[0022] When the backrest frame 2 is driven to move along an arc-shaped track, the backrest frame 2 can achieve inFigure 4 The adjustment between the standing posture shown and the lying posture shown, especially during the adjustment from the standing posture to the lying posture, the backrest frame 2 will also move forward, and will not collide with the objects or walls behind the massage chair, realizing the function of zero-space adjustment of the sitting and lying postures of the massage chair. Figure 1 In addition, since the backrest frame 2 will generate displacement in the front-back direction during the posture adjustment process, this design can not only avoid interference with the objects behind the massage chair, but also help maintain the stability of the overall center of gravity of the backrest frame 2, prevent the massage chair from tipping over due to the change of the center of gravity, which can also reduce the requirements for the supporting area between the base 1 and the ground, and can also reduce the requirements for the structural strength and quantity of the support columns 12, making the base 1 more compact and beautiful.
[0023] Both sides of the backrest frame 2 include two symmetrically arranged guide rails. The guide rails include second guide grooves 22. The second guide grooves 22 of the two guide rails are arranged at intervals. A massage mechanism 4 that can move along the second guide groove 22 is arranged in the vacant position between the two second guide grooves 22. A tooth part is arranged in the second guide groove 22. The massage mechanism 4 can realize the walking movement along the extension direction of the second guide groove 22 through the gears on both sides thereof and the cooperation with the second guide groove 22, so as to realize the moving massage of the user's head, neck, shoulders, back, waist, hips, legs and other parts. In the present utility model, the electric push rod 3 in this installation position is located behind the traveling path of the massage mechanism 4 and will not affect the traveling space of the massage mechanism 4, and can ensure that the massage mechanism 4 has a large traveling range.
[0024] Two support ribs 23 are connected between the two guide rails. According to different positions, one of the support ribs 23 is a front support rib 23, and the other is a rear upper support rib 23. The two support ribs 23 play a reinforcing role for the two guide rails, ensuring that the overall backrest frame 2 has a high structural strength. The rear upper support rib 23 is located at the upper rear of the overall backrest frame 2. The moving end of the electric push rod 3 is hinged to an ear seat arranged on the rear upper support rib 23, making the overall structure more compact.
[0025] The lower part of the movable bracket 21 also includes two symmetric guide rails. Two first guide grooves 211 are respectively arranged on the two guide rails. The two guide rails and the main body of the backrest frame 2 and the guide rails for providing the two second guide grooves 22 are connected and reinforced through structures such as cross beams, longitudinal beams, and bent beams, so that the guide rails of the backrest frame 2 can be connected into an integral body.
[0026]
[0027] In this embodiment, the chassis 11 is disc-shaped and has a flat structure. The support column 12 is disposed at the center of the upper end of the chassis 11 to improve the stability of the massage chair and the aesthetic appearance of the base 11. In other embodiments, the chassis 11 may also adopt shapes such as rectangular, oval, triangular, etc.
[0028] The support column 12 includes an upper part 121 and a lower part 122 which are coaxially arranged. The upper part 121 and the lower part 122 are respectively fixedly connected to the support platform 13 and the chassis 11. The upper part 121 and the lower part 122 of the support column 12 form a rotational connection fit, enabling the overall rotation of the backrest frame 2, making the massage chair more suitable for leisure and office use scenarios.
[0029] The above embodiments are only one of the preferred specific embodiments of the present invention. The ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.
Claims
1. A slide-type zero-space linkage massage chair frame, comprising a base, a backrest frame movably arranged on the base, and an electric push rod arranged between the base and the backrest frame, characterized in that: The base includes a chassis, a support column arranged at the upper end of the chassis, and a support platform arranged on the upper part of the support column. The lower end of the backrest frame includes a movable bracket. The support platform and the movable bracket are coordinated with each other through an arc-shaped first guide groove and a roller. The electric push rod is respectively connected to the support platform and the backrest frame and can drive the backrest frame to move along an arc-shaped motion trajectory. One end of the electric push rod is hinged to the rear end of the support platform, and the other end of the electric push rod is hinged to the rear upper part of the backrest frame.
2. The slide groove type zero space linkage massage chair frame according to claim 1, characterized in that: Two groups of rollers are symmetrically arranged on the left and right sides of the support platform, and each group of rollers includes at least two rollers distributed along the front and rear directions of the support platform. The first guide grooves are symmetrically arranged on both sides of the lower end of the movable bracket, and the rollers on both sides of the support platform respectively cooperate with the first guide grooves located on both sides of the movable bracket to form support and guide movement.
3. The slide groove type zero space linkage massage chair frame according to claim 1, characterized in that: The two sides of the backrest frame include two symmetrically arranged guide rails, the guide rails include second guide grooves, and a massage movement capable of moving along the second guide grooves is arranged between the second guide grooves of the two guide rails.
4. The slide groove type zero space linkage massage chair frame according to claim 3, characterized in that: A support rib is connected between the two guide rails, and the other end of the electric push rod is hinged to the support rib.
5. The slide groove type zero space linkage massage chair frame according to claim 1, characterized in that: The chassis is in a disc shape, and the support column is arranged at the center position of the upper end of the chassis.
6. The slide groove type zero space linkage massage chair frame according to claim 1, characterized in that: The support column comprises an upper portion and a lower portion which are coaxially arranged, and the upper portion and the lower portion of the support column form a rotationally connected fit.