阅读说明：本技术 一种椅架及按摩椅 (Chair frame and massage armchair ) 是由 陈加福 林美满 陈志明 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种椅架及按摩椅,该椅架通过推杆配合导轨及滚轮耳座实现了椅架的姿态调节,在倒背时,推杆伸长推动座架前端抬起,从而带动导轨在滚轮耳座内沿背架向座架方向滑动,实现倒背动作。该椅架导轨结构简单,同时采用普通推杆,提高了椅架向上的支撑力,背架的支撑点也由原来的四个改成了2个,连接方式得到了简化,底座结构也得到了简化,从而极大的降低椅架成本,及安装程序,提高了生产效率。(The invention discloses a chair frame and a massage chair, wherein the chair frame realizes the posture adjustment of the chair frame through a push rod matched with a guide rail and a roller ear seat, and when the back is inverted, the push rod extends to push the front end of a seat frame to be lifted, so that the guide rail is driven to slide in the roller ear seat along the back frame to the seat frame direction, and the back-inverting action is realized. The chair frame guide rail is simple in structure, meanwhile, the common push rod is adopted, the upward supporting force of the chair frame is improved, the number of the supporting points of the back frame is changed from four to 2, the connecting mode is simplified, the base structure is simplified, the cost of the chair frame is greatly reduced, the installation procedure is achieved, and the production efficiency is improved.)

1. A chair frame is characterized by comprising a back frame, a seat frame, a base, a push rod and two guide rails, wherein the back frame is fixedly connected with the seat frame;

the base is provided with two roller lug seats, the two guide rails are respectively connected with the roller lug seats in a sliding manner, one end of the push rod is hinged to the base, and the other end of the push rod is hinged to the back frame or the seat frame;

the push rod extends to push the seat frame to be lifted, and the guide rail is driven to slide on the roller ear seat along the back frame towards the direction of the seat frame, so that the seat frame and the back frame are changed from a sitting posture state to a back-falling state.

2. The chair frame according to claim 1, wherein said guide rail is of an arcuate tubular configuration.

3. The chair frame according to claim 1, wherein a first roller, a second roller and a third roller are distributed in the roller ear seat in a triangular shape;

the guide rail is arranged between the first roller, the second roller and the third roller in a sliding mode.

4. The chair frame according to claim 3, wherein the roller ear seats are fixed on the base, and the height of the first roller relative to the ground is greater than the height of the second roller and the third roller relative to the ground.

5. The chair frame according to claim 1, wherein the back frame and the seat frame are respectively provided with a protruding post, and both ends of the guide rail are respectively connected to the ends of the protruding posts so that the guide rail is spaced apart from the back frame and the seat frame.

6. A chair frame according to claim 5, wherein the guide track is of arcuate curved configuration and has a curvature greater than the curvature of the junction of the back frame and the seat frame to reduce travel during recline of the back frame and the seat frame.

7. The chair frame according to claim 1, further comprising a massage mechanism, wherein a slide rail for moving the massage mechanism is disposed on the back frame and the seat frame, and the slide rail extends to the front of the connection between the guide rail and the seat frame, so that the massage mechanism can move to a position on the seat frame corresponding to the buttocks of the user.

8. The chair frame according to claim 1, further comprising a calf rest and a linkage assembly, the linkage assembly including a swing link, a calf drive bar, a first calf link and a second calf link; one end of the swing rod is hinged with the base, the other end of the swing rod is hinged with the second shank connecting rod, the other end of the second shank connecting rod is hinged with the middle part of the first shank connecting rod, one end of the first shank connecting rod is hinged with the seat frame, the other end of the first shank connecting rod is provided with a roller and is abutted against the shank frame, one end of the shank driving rod is hinged with the middle part of the swing rod, the other end of the shank driving rod is hinged with the seat frame, and the shank frame is hinged on the seat frame;

the push rod extends to push the seat frame to be lifted, so that the shank driving rod drives the swing rod to rotate towards the shank frame along the back frame, and the second shank connecting rod and the first shank connecting rod are pushed to lift the shank frame.

9. A massage chair, comprising the chair frame according to claims 1 to 6 and a center plate, wherein the center plate controls the posture of the chair frame.

Technical Field

The invention relates to the technical field of massage, in particular to a chair frame and a massage chair.

Background

The existing massage chair frame structure is an L-shaped guide rail, the section shape of the guide rail is mostly C-shaped, the length of the guide rail is longer, and the shape is complex, so that the manufacturing cost and the process difficulty are higher. And the push rod of the existing massage chair also mostly adopts a flat push rod, because the angle used by the flat push rod is generally parallel to the ground or the included angle is very small, the upward supporting force of the flat push rod is insufficient, the supporting points of the common chair frame need to be supported by a front support and a rear support respectively, including the left side and the right side, and four points are needed to support, so that the connecting mode structure of the flat push rod is more complex, and the cost X is also relatively high. In view of this, the present application is specifically made.

Disclosure of Invention

The invention provides a chair frame and a massage chair aiming at the defects of the prior art, thereby solving the problems of complex structure, higher cost, high manufacturing cost of a guide rail and high process difficulty of the prior chair frame.

The invention provides a chair frame which comprises a back frame, a seat frame, a base, a push rod and two guide rails, wherein the back frame is fixedly connected with the seat frame;

the base is provided with two roller lug seats, the two guide rails are respectively connected with the roller lug seats in a sliding manner, one end of the push rod is hinged to the base, and the other end of the push rod is hinged to the back frame or the seat frame;

the push rod extends to push the seat frame to be lifted, and the guide rail is driven to slide on the roller ear seat along the back frame towards the direction of the seat frame, so that the seat frame and the back frame are changed from a sitting posture state to a back-falling state.

On the other hand, the embodiment of the invention also provides a massage chair, which comprises the chair frame and a central plate, wherein the central plate controls the adjustment posture of the chair frame.

By adopting the technical scheme, the invention can obtain the following technical effects: compared with the prior art, the chair frame realizes the posture adjustment of the chair frame by matching the push rod with the guide rail and the roller ear seat, and when the back is reversed, the push rod extends to push the front end of the seat frame to be lifted, so that the guide rail is driven to slide in the roller ear seat along the back frame to the direction of the seat frame, and the back-reversing action is realized. The chair frame guide rail is simple in structure, meanwhile, the common push rod is adopted, the upward supporting force of the chair frame is improved, the number of the supporting points of the back frame is changed from four to 2, the connecting mode is simplified, the base structure is simplified, the cost of the chair frame is greatly reduced, the installation procedure is achieved, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a chair frame according to an embodiment of the invention;

FIG. 2 is a schematic view of the back of the chair frame of FIG. 1;

3-4 illustrate cross-sectional views of the chair frame of FIG. 1;

FIG. 5 is another side interface view of the chair frame of FIG. 4;

FIG. 6 is an exploded view of the chair frame of FIG. 1;

FIG. 7 is a schematic structural diagram of the base of FIG. 1;

fig. 8 is a schematic structural view of the back frame and the seat frame of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention provides a chair frame, including a back frame 1, a seat frame 2, a base 3, a push rod 4 and two guide rails 5, where the back frame 1 is fixedly connected to the seat frame 2, the two guide rails 5 are respectively disposed at outer sides of the back frame 1 and the seat frame 2, one end of each guide rail 5 is connected to the back frame 1, the other end is connected to the seat frame 2, the base 3 is provided with two roller ear seats 31, the two guide rails 5 are respectively connected to the roller ear seats 31 in a sliding manner, one end of the push rod 4 is hinged to the base 2, and the other end is hinged to the back frame 1 or the seat frame 2;

the push rod 4 extends to push the seat frame 2 to be lifted, and drives the guide rail 5 to slide on the roller ear seat 31 along the back frame 1 towards the seat frame 2, so that the seat frame 2 and the back frame 1 are changed from a sitting posture state to a back-falling state.

According to the technical scheme, the posture of the chair frame is adjusted by matching the push rod with the two guide rails and the two roller ear seats, and when the back is inverted, the push rod extends to push the front end of the seat frame to be lifted, so that the guide rails are driven to slide in the roller ear seats along the back frame to the seat frame, and the back-inverting action is realized. The chair frame guide rail is simple in structure, meanwhile, the common push rod is adopted, the upward supporting force of the chair frame is improved, the number of the supporting points of the back frame is changed from four to 2, the connecting mode is simplified, the base structure is simplified, the cost of the chair frame is greatly reduced, the installation procedure is achieved, and the production efficiency is improved.

Specifically, in one example, as shown in fig. 7 and 8, the push rod 4 is hinged to a first ear seat 41 of the base 3 at one end and hinged to a second ear seat 42 of the seat frame 2 at the other end, and the extension and contraction of the push rod 4 can adjust the change of the sitting posture and the back-leaning state of the seat frame.

Furthermore, as shown in fig. 6, the number of the roller ear seats 31 is two, and the two roller ear seats are respectively disposed on two sides of the base 3, so that the back frame and the seat frame are supported by the base 3 at a single point on the left and right.

Therefore, the supporting points of the back frame are changed from four points to two points, and the supporting points are matched with a common push rod to provide upward supporting force for the seat frame, so that the posture of the chair frame is adjusted. The connecting mode is simple, and the base structure is simplified, so that the cost of the chair frame is greatly reduced, the mounting steps are reduced, and the production efficiency is improved.

Further, in one example, as shown in fig. 1-5, the guide rail 5 is an arc-shaped circular tube structure. The guide rail made of the arc-shaped circular tube structure can simplify the forming process of the guide rail, avoid the problem that the precision requirement of a guide rail mold is high in the past, and reduce the cost of the guide rail.

Further, in one example, as shown in fig. 6 and 7, a first roller 311, a second roller 312 and a third roller 313 are distributed in the roller ear seat 31 in a triangular shape;

the guide rail 5 is slidably disposed between the first roller 311 and the second and third rollers 312 and 313.

As shown in fig. 1 to 6, the first roller 311 is above the guide rail 5, and the second roller 312 and the third roller 313 are below the guide rail 5, that is, the guide rail 5 passes through the roller ear seat 31 and is slidably disposed on the roller ear seat 31. The triangle structure can make setting up on gyro wheel ear seat 31 that back of the body frame 1, seat frame 2, guide rail 5 are more stable, and first gyro wheel can carry on spacingly to guide rail 5 to avoid the guide rail to deviate from the gyro wheel ear seat. More preferably, an equilateral triangle design can be used.

Further, in one example, as shown in fig. 1-4, the roller ear seat 31 is fixed on the base 3, and the height of the first roller 311 relative to the ground is greater than the height of the second roller 312 and the third roller 313 relative to the ground.

As shown in fig. 1-4, in a preferred embodiment, the roller ear seat 31 is obliquely arranged on the base 3, specifically, the triangle corresponding to the roller installation in the roller ear seat 31 is obliquely arranged towards the direction of the back frame, so that the purpose of setting the angle of the inverted back chair frame to be the angle most suitable for the comfort of the human body is achieved through empirical tests. Of course, for implementation of the solution or for different angles between the back frame 1 and the seat frame 2, the corresponding triangle of the roller mount in the roller ear seat 31 may also be arranged parallel to the base 3 or inclined to the lower leg side, which is not limited in the embodiment of the present invention.

Further, in one example, as shown in fig. 1 to 5, the back frame 1 and the seat frame 2 are respectively provided with a protruding column 11, and two ends of the guide rail 5 are respectively connected to the ends of the protruding columns 11 so that the guide rail 5 and the back frame 1 and the seat frame 2 are spaced apart from each other. The height of the whole chair frame can be reduced by the arrangement, and the chair frame is arranged on the side surface, so that the collision between the chair frame and the connecting position of the push rod of the base and the movement can be avoided, and the structure can be simplified.

Further, in one example, as shown in fig. 1 to 5, the guide rail 5 has an arc-shaped curved structure, and the curvature of the guide rail 5 is larger than the curvature of the connection between the back frame 1 and the seat frame 2, so as to reduce the stroke of the back frame 1 and the seat frame 2 during back falling.

Further, in an example, the massage device further comprises a massage movement (not shown in the figure), a sliding rail (not shown in the figure) for moving the massage movement is arranged on the back frame 1 and the seat frame 2 in a penetrating manner, and the sliding rail extends to the front of the joint of the guide rail 5 and the seat frame 2, so that the massage movement can move to the position, corresponding to the buttocks of the user, on the seat frame 2.

Further, in an example, the embodiment of the present invention further realizes a function of linking the inverted back of the chair frame and the lower leg simultaneously, as shown in fig. 1 to 5, the chair further includes a lower leg frame 6 and a connecting rod assembly, wherein the connecting rod assembly includes a swing rod 7, a lower leg driving rod 8, a first lower leg connecting rod 9 and a second lower leg connecting rod 10; one end of the swing rod 7 is hinged with the base 3, the other end of the swing rod is hinged with the second shank connecting rod 10, the other end of the second shank connecting rod 10 is hinged with the middle part of the first shank connecting rod 9, one end of the first shank connecting rod 9 is hinged with the seat frame 2, the other end of the first shank connecting rod 9 is provided with a roller 91 and is abutted against the shank rack 6, one end of the shank driving rod 8 is hinged with the middle part of the swing rod 7, the other end of the shank driving rod is hinged with the seat frame 2, and the shank rack 6 is hinged on the seat frame 2;

the push rod 4 extends to push the seat frame 2 to be lifted, so that the shank driving rod 8 drives the swing rod 7 to rotate towards the shank rack 6 along the back frame 1, and the second shank connecting rod 10 and the first shank connecting rod 9 are pushed to lift the shank rack 6.

Specifically, as shown in fig. 6-8, one end of the swing link 7 is hinged to the third ear seat 71 on the base 3, and one end of the shank driving rod 8 is hinged to the fourth ear seat 81 on the seat frame 2. In the embodiment of the invention, the shank linkage structure is simple, easy to realize and low in cost.

The operation of the chair frame according to the embodiment of the present invention will be described in detail as follows: as shown in fig. 1-8, the push rod 4 extends to push the seat frame 2 to lift, so as to drive the guide rail 5 to slide on the roller ear seat 31 along the back frame 1 toward the seat frame 2, and at the same time, the seat frame drives the shank driving rod 8 to pull the middle part of the swing rod 7 to do circular arc motion along the back frame 1 toward the shank frame with the third ear seat 71 as the rotation center, and one end of the swing rod 7 pushes the middle parts of the second shank connecting rod 10 and the first shank connecting rod 9 to lift the shank frame.

Further, the embodiment of the invention also provides a massage chair, which comprises the chair frame and a central plate, wherein the central plate controls the adjustment posture of the chair frame.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.