阅读说明：本技术 一种按摩机 (Massage machine ) 是由 袁挺 陆鹏 于 2021-01-28 设计创作，主要内容包括：本发明提供一种按摩机,包括背架、座架、导轨和按摩机芯；所述背架借由绕设定轴线旋转来调整其与座架之间的施疗角度,并且在背架和座架之间形成有间隔空隙,所述导轨跨过该间隔空隙并由背架延伸至座架上,所述间隔空隙处配置有连接背架和座架的弹性板,所述导轨与弹性板固定接合；所述按摩机芯配置在导轨上并能够沿导轨移动以进行按摩；它还包括：形变保持机构,配置在间隔空隙处,其包括至少一压板和至少一支撑件组,所述压板适于由上方抵压弹性板,所述支撑件组适于由下方支持弹性板；其中,所述支撑件组包括至少两个间隔设置的支撑构件,所述压板和支撑构件之间形成保持弹性板形变稳定性的塑形通道,所述弹性板在所述塑形通道内被夹持。本申请具有能够提高按摩机芯的行走稳定性并能够提高产品使用寿命、降低噪音的技术效果。(The invention provides a massager, which comprises a back frame, a seat frame, a guide rail and a massage machine core; the back frame adjusts the treatment angle between the back frame and the seat frame by rotating around a set axis, a spacing gap is formed between the back frame and the seat frame, the guide rail spans the spacing gap and extends from the back frame to the seat frame, an elastic plate connecting the back frame and the seat frame is arranged at the spacing gap, and the guide rail is fixedly connected with the elastic plate; the massage machine core is arranged on the guide rail and can move along the guide rail to massage; it still includes: the deformation retaining mechanism is arranged at the interval gap and comprises at least one pressing plate and at least one supporting piece group, the pressing plate is suitable for pressing the elastic plate from the upper part, and the supporting piece group is suitable for supporting the elastic plate from the lower part; the support group comprises at least two support members arranged at intervals, a shaping channel for keeping the deformation stability of the elastic plate is formed between the pressing plate and the support members, and the elastic plate is clamped in the shaping channel. This application has the technical effect that can improve the walking stability of massage core and can improve product life, noise reduction.)

1. A massage machine comprises a back frame, a seat frame, a guide rail and a massage machine core; the back frame adjusts the treatment angle between the back frame and the seat frame by rotating around a set axis, a spacing gap is formed between the back frame and the seat frame, the guide rail spans the spacing gap and extends from the back frame to the seat frame, an elastic plate connecting the back frame and the seat frame is arranged at the spacing gap, and the guide rail is fixedly connected with the elastic plate; the massage machine core is arranged on the guide rail and can move along the guide rail to massage; it is characterized in that it also comprises:

the deformation retaining mechanism is arranged at the interval gap and comprises at least one pressing plate and at least one supporting piece group, the pressing plate is suitable for pressing the elastic plate from the upper part, and the supporting piece group is suitable for supporting the elastic plate from the lower part;

the support member group comprises at least two support members arranged at intervals, a shaping channel for keeping the deformation stability of the elastic plate is formed between the pressing plate and at least one support member group, and the elastic plate is clamped in the shaping channel.

2. The massager of claim 1 wherein the pressing plate is biased against the resilient plate by a biasing member, the pressing plate and the biasing member being in relatively slidable contact.

3. The massager of claim 2 wherein said pressing member is at least two spaced apart.

4. The massager of claim 2 wherein said presser plate has an arcuate biasing portion adapted to the arcuate deformation of the resilient plate at the spaced gap; the pressing component is provided with an upper cambered surface matched with the force application part and a lower cambered surface matched with the elastic plate.

5. The massage machine as claimed in claim 2, wherein the guide rail has an extension portion extending between the elastic plate and the pressing member, the extension portion is closely attached to the elastic plate, and the pressing member abuts against the extension portion.

6. The massager of claim 2 wherein said biasing member is a molded piece of abrasion resistant plastic.

7. The massage machine as claimed in claim 2, 3, 4, 5 or 6, wherein the pressing member and the supporting member are connected by a connecting plate, and the pressing member is rotatably coupled to the connecting plate by a pivot shaft.

8. The massager of claim 7 wherein said support member is rotatably engaged on the connecting plate by a pivot shaft.

9. The massager of claim 8 wherein said support member is a roller or a roller.

10. The massager of claim 8 or 9 wherein said set of support members comprises three support members and said connecting plates comprise a first connecting plate and a second connecting plate, wherein two support members engage on the first connecting plate and one support member engages on the second connecting plate, said first and second connecting plates being connected by a set of links such that the two connecting plates follow each other.

Preferably, the linkage comprises a first link and a second link, the first link has three pivoting ends, the second link has two pivoting ends, the two pivoting ends of the first link are respectively pivotally connected with the first connecting plate and the second link,

the other pivoting end is pivotally connected with the back frame, and the two pivoting ends of the second connecting rod are respectively pivotally connected with the second connecting plate and the first connecting rod.

Preferably, the support group further comprises two support members, both of which are joined to the third connection plate,

the third connecting plate is connected to the seat frame through a third connecting rod.

Preferably, the third link has two pivotally connected ends, which pivotally connect the seat frame and the third connecting plate, respectively.

Preferably, the pressing plate comprises a first pressing plate and a second pressing plate, the first pressing plate is fixedly jointed on the back frame, the second pressing plate is fixedly jointed on the seat frame, a first supporting piece group is arranged below the first pressing plate, a second supporting piece group is arranged below the second pressing plate, the first supporting piece group comprises three supporting members, and the second supporting piece group comprises two supporting members.

Preferably, the supporting members and the pressing members are arranged in one-to-one correspondence.

Preferably, the first support member set is connected to the back frame and the second support member set is connected to the seat frame.

Technical Field

The invention relates to the field of massage appliances, in particular to a massage machine capable of massaging the whole body.

Background

The inside of massage armchair is provided with the massage core, be provided with the track in the chair, the massage core walks about in the massage armchair along the track, play the effect of massage, the massage armchair is mostly at present can free angle regulation, the improvement comfort level, the user constantly improves the demand of massage, hope to imitate and massage by hand, and can whole-body massage, most massage cores are because the structure is directional, the guide rail only sets up in the back of the body frame, because the angle of back of the body frame with sit the frame needs the adjustment in the seat frame, massage core structure is complicated, can not directly walk into in the seat frame from the back of the body frame, moving structure is the structure of guide rail centre gripping gyro wheel usually, this stable in structure nevertheless can not adjust, the massage core removes comparatively hard, the massage comfort level is low.

With the pursuit of people on the quality of life, people like health care massage more and more, and simultaneously, higher requirements are provided for the massage effect of massage equipment. At present, the movable massage machine core arranged in the backrest of the massage chair can only massage the back up and down, and the massage area is limited.

In order to solve the above technical problems, the applicant filed a chinese patent with publication No. CN202173563U on 8/1/2011 with the name of a massage chair capable of massaging from the head to the thighs and simulating a zero gravity state, which relates to a massage chair comprising a seat frame, a sitting and leaning part, an armrest, an electric push rod of the sitting and leaning part, a walking massage machine core and a control circuit; the sitting and leaning part comprises a back frame and a sitting part, the sitting and leaning part is provided with a shell and a guide rail frame, the guide rail frame is arranged in the shell, the length and the shape of the guide rail frame are similar to the natural curve shape from the head to the thighs when a person sits on the chair, and the guide rail frame is rotatably connected with the seat frame; the bottom end of the electric push rod of the sitting and leaning part is connected with the seat frame, and the output end of the electric push rod of the sitting and leaning part is hinged with the bottom of the guide rail frame; the walking massage machine core is arranged in the shell of the backrest frame, and the walking wheels of the walking massage machine core are in rolling fit with the guide rails of the guide rail frame; the control circuit is arranged on the seat frame. The optimal effects of head to thigh massage and zero gravity massage can be achieved. Simple structure, the connecting piece is few, reducible preparation and assembly error, reliable operation, convenient operation.

Although the above patent can realize the whole body massage function, the guide rail of the patent is an integral guide rail from the head to the thigh of the human body, which is also called as an L-shaped guide rail in the industry, the seat and the back of the guide rail structure can only rotate together, the angle between the seat and the back is fixed, and the angle of the human body lying on the massage chair is also fixed and cannot be adjusted. In practice, the lying angle required by different people is different, and the lying angle can be adjusted and changed in the massage process.

In order to solve the above technical problems, the applicant has also applied for a chinese patent with a patent name of multiple movement whole course massage chair, publication number CN203303313U, which adopts a technical solution of providing two massage movements, and obviously the solution has a higher cost.

In view of the above problems of the conventional structure, how to develop an innovative structure with more ideal practicability is also the goal and direction of the related industry for research and development breakthroughs.

Disclosure of Invention

The present invention is to overcome the first technical problem and provide a massage machine capable of massaging the whole body.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a massage machine comprises a back frame, a seat frame, a guide rail and a massage machine core; the back frame adjusts the treatment angle between the back frame and the seat frame by rotating around a set axis, a spacing gap is formed between the back frame and the seat frame, the guide rail spans the spacing gap and extends from the back frame to the seat frame, an elastic plate connecting the back frame and the seat frame is arranged at the spacing gap, and the guide rail is fixedly connected with the elastic plate; the massage machine core is arranged on the guide rail and can move along the guide rail to massage; it still includes:

the deformation retaining mechanism is arranged at the interval gap and comprises at least one pressing plate and at least one supporting piece group, the pressing plate is suitable for pressing the elastic plate from the upper part, and the supporting piece group is suitable for supporting the elastic plate from the lower part;

the support group comprises at least two support members arranged at intervals, a shaping channel for keeping the deformation stability of the elastic plate is formed between the pressing plate and the support members, and the elastic plate is clamped in the shaping channel.

The technical scheme can be further perfected as follows:

furthermore, the pressing plate applies force to the elastic plate through the abutting component, and the pressing plate and the abutting component can be in relative sliding contact.

Further, the pressing members are at least two arranged at intervals.

Further, the pressure plate is provided with an arc-shaped force application part which is adaptive to the arc-shaped deformation of the elastic plate at the gap; the pressing component is provided with an upper cambered surface matched with the force application part and a lower cambered surface matched with the elastic plate.

Furthermore, the guide rail is provided with an extending part extending to the position between the elastic plate and the abutting member, the extending part is tightly attached to the elastic plate, and the abutting member abuts against the extending part.

Further, the pressing member is a molded piece made of wear-resistant plastic.

Further, the pressing member and the supporting member are connected through a connecting plate, and the pressing member is rotatably connected to the connecting plate through a pivot shaft.

Further, the support member is rotatably coupled to the connection plate by a pivot shaft.

Further, the supporting members and the pressing members are arranged in one-to-one correspondence.

Further, the support member is a roller or a roller.

Further, the support group comprises three support members, the connecting plates comprise a first connecting plate and a second connecting plate, wherein two support members are jointed on the first connecting plate, one support member is jointed on the second connecting plate, and the first connecting plate and the second connecting plate are connected through a connecting rod group so that the two connecting plates follow each other.

Furthermore, the linkage includes a first connecting rod and a second connecting rod, the first connecting rod has three pivoting ends, the second connecting rod has two pivoting ends, the two pivoting ends of the first connecting rod are respectively pivotally connected with the first connecting plate and the second connecting rod, the other pivoting end is pivotally connected with the back frame, and the two pivoting ends of the second connecting rod are respectively pivotally connected with the second connecting plate and the first connecting rod.

Further, the set of supports comprises two support members, both of which are joined to a third connecting plate, which is connected to the seat frame by a third connecting rod.

Further, the third connecting rod is provided with two pivoting ends which are respectively pivoted with the seat frame and the third connecting plate.

Further, the pressing plate comprises a first pressing plate and a second pressing plate, the first pressing plate is fixedly connected to the back frame, the second pressing plate is fixedly connected to the seat frame, a first supporting piece group is arranged below the first pressing plate, a second supporting piece group is arranged below the second pressing plate, the first supporting piece group comprises three supporting components, and the second supporting piece group comprises two supporting components.

Further, the first support member set is connected to the back frame, and the second support member set is connected to the seat frame.

Due to the adoption of the first technical scheme, the invention has the following beneficial effects:

1. in the prior art, the back frame guide rail and the seat frame guide rail can rotate relatively and are separated from each other, so that the massage machine core can only move on one guide rail and cannot massage the whole body of a user. In order to ensure that the back frame and the seat frame are smoothly butted all the time in the rotation process of the back frame, and the massage machine core can be stably switched between the back frame and the seat frame, the invention is provided with the deformation maintaining mechanism which can ensure that the elastic plate and the guide rail can always maintain the adaptive deformation, and ensure that the guide rail and the elastic plate are always kept stable and adapt to the deformation and curvature range of the massage machine core, thereby avoiding the shake of the massage machine core when the massage machine core walks on the transition guide rail, and the pause feeling of the massage machine core when the massage machine core moves from the back guide rail or the seat guide rail to the transition guide rail, and further improving the comfort of the massage.

2. The deformation holding mechanism comprises the pressing plate and the supporting piece group, a shaping channel for holding the deformation stability of the elastic plate is formed between the pressing plate and the supporting piece group, and the elastic plate penetrates through the shaping channel and is clamped.

3. The deformation retaining mechanism further comprises a pressing component, the pressing plate and the pressing component can be in relative sliding contact, the pressing component and the supporting component are arranged in a one-to-one correspondence mode, and the pressing component is made of plastic, so that mechanical abrasion caused by direct contact of the pressing plate and the elastic plate can be remarkably reduced, noise is prevented from being generated when a product is used, and the service life of the product is prolonged. In addition, the guide rail is provided with an extending part extending into the space between the abutting member and the elastic plate, and the extending part is tightly contacted with the elastic plate.

4. The support piece group is connected with the seat frame or the back frame through the connecting rod, and the support piece group can follow the seat frame or the back frame, so that the support piece group and the abutting member can be better attached to the elastic plate, and the deformation of the elastic plate is more stable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

Fig. 1 is a schematic overall structure diagram of the first embodiment.

Fig. 2 is a schematic internal structure diagram of the first embodiment.

Fig. 3 is a first schematic view of the assembly of the deformation holding mechanism with the guide rail and the elastic plate according to the first embodiment.

Fig. 4 is a second schematic view of the assembly of the deformation holding mechanism, the guide rail and the elastic plate according to the first embodiment.

FIG. 5 is an assembly diagram of a part of the parts of the first embodiment.

FIG. 6 is a second schematic view of the assembly of some parts of the first embodiment.

Fig. 7 is a schematic view of a strain holding mechanism according to the first embodiment.

Fig. 8 is a schematic structural view of the first presser plate of the first embodiment.

FIG. 9 is a schematic structural view of a second presser plate of the first embodiment.

Fig. 10 is a schematic structural view of the pressing member according to the first embodiment.

Fig. 11 is an exploded view of the guide rail and the elastic plate of the first embodiment.

Reference numerals:

1. a back frame; 2. a seat frame; 3. spacing gaps; 4. a deformation holding mechanism; 401. a first platen; 402. a second platen; 403. a pressing member; 403a, upper arc surface; 403b. lower arc; 404. a support member; 404a, a first set of supports; 404b. a second set of supports; 405. a first link; 406. a second link; 407. a third link; 408. a third connecting plate; 409. a first connecting plate; 410. a second connecting plate; 5. a guide rail; 6. an elastic plate; 7. and (4) shaping the channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in a figure, it need not be further defined and explained in the following figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "up" and "down" and similar referents in the specification and claims of this specification and the invention is not to be construed as limiting any order, quantity, or importance, but rather as merely identifying various components. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item appearing on "comprises" or "comprising" covers the element or item listed under "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1, 2, 3 and 4, the present embodiment provides a massage machine, which includes a back frame 1, a seat frame 2, a guide rail 5 and a massage movement (not shown in the figure); the back frame 1 adjusts the treatment angle between the back frame 1 and the seat frame 2 by rotating around a set axis, a spacing gap 3 is formed between the back frame 1 and the seat frame 2, a guide rail 5 spans the spacing gap 3 and extends from the back frame 1 to the seat frame 2, an elastic plate 6 connecting the back frame 1 and the seat frame 2 is arranged at the spacing gap 3, and the guide rail 5 is fixedly connected with the elastic plate 6; the massage machine core is arranged on the guide rail 5 and can move along the guide rail 5 to massage; the device also comprises a deformation retaining mechanism 4, wherein the deformation retaining mechanism 4 is arranged at the interval gap 3 and comprises a first pressing plate 401, a second pressing plate 402, a first support member group 404a and a second support member group 404b, the first pressing plate 401 and the second pressing plate 402 are both suitable for pressing the elastic plate 6 from the upper part, and the first support member group 404a and the second support member group 404b are both suitable for supporting the elastic plate 6 from the lower part; the first support group 404a includes three support members 4 arranged at intervals, and the second support group 404b includes two support members 4 arranged at intervals; as shown in fig. 7, a shaping channel 7 for maintaining the deformation stability of the elastic plate 6 is formed between the pressing plate and the supporting member 4, and the elastic plate 6 is clamped in the shaping channel 7. The elastic plate 6 and the guide rail 5 deform in the shaping channel 7, and the shaping channel 7 has the functions of limiting and maintaining the deformation of the elastic plate 6 and the guide rail 5, so that the elastic plate 6 and the guide rail 5 can generate stable deformation, the massage machine core does not shake when passing through the interval gap 3, and the fatigue life of the guide rail 5 and the elastic plate 6 can be prolonged. The elastic plate 6 in this embodiment is made of spring steel, such as 60Si2Mn or the like.

It should be noted that the pressing in the present invention means that the pressing plate actively applies a downward pressure on the elastic plate 6, and the pressing may be a direct contact and an application of force, or an indirect contact and an application of force. In the present embodiment, the pressing plate is indirectly contacted and applied with force, specifically, the pressing plate is directly applied with force on the pressing member 403, the pressing member 403 transmits the pressure to the extending portion of the guide rail 5, and the extending portion further transmits the pressure to the elastic plate 6. Therefore, the pressing in the present invention includes direct contact and pressure application, i.e., the pressing plate directly contacts the elastic plate 6, and also includes indirect contact and pressure application, i.e., the example in the present embodiment. The support in the present invention means that the support member passively receives the pressure applied by the elastic plate 6 from below, and the support may be a direct support or an indirect support, and in this embodiment, a direct support is adopted, that is, the support member directly contacts the elastic plate 6 and receives the pressure applied by the elastic plate.

As shown in fig. 3 and 4, the deformation holding mechanism 4 includes a first pressing plate 401 and a second pressing plate 402, the first pressing plate 401 and the second pressing plate 402 are both applied with force to the elastic plate 6 through the pressing member 403, and the first pressing plate 401, the second pressing plate 402 and the pressing member 403 are in relatively slidable contact, that is, the pressing plates are pressed against the upper surface of the pressing member 403, and can slide relatively therebetween. Three pressing members 403 are provided below the first pressing plate 401, and two pressing members 403 are provided below the second pressing plate 402.

As shown in fig. 8 and 9, each of the first presser plate 401 and the second presser plate 402 has an arc-shaped force application portion adapted to the arc-shaped deformation of the elastic plate 6 at the gap 3, and the adaptation means that the arc of the presser plate and the arc of the elastic plate 6 deformed at the gap are substantially equivalent to each other in the normal use state, and not that both are completely identical, and in fact, in the angle adjustment process of the back frame 1, the arc of the elastic plate 6 at the gap 3 is constantly changed, and the arc of the presser plate is fixed, so that both cannot be identical. As shown in fig. 10, the pressing member 403 has an upper arc surface 403a adapted to the force application portion and a lower arc surface 403b adapted to the elastic plate 6, and the pressing member 403 is a molded part made of wear-resistant plastic, specifically, wear-resistant plastic composed of nylon and glass fiber, but may also be other wear-resistant plastics, and the nylon is mainly used in consideration of comprehensive cost performance.

As shown in fig. 5, 6 and 11, the guide rail 5 has an extending portion extending between the elastic plate 6 and the pressing member 403, the extending portion and the guide rail 5 are integrally formed, the extending portion is tightly attached to the elastic plate 6, and the pressing member 403 abuts against the extending portion. In the present embodiment, the pressing positions are, from top to bottom, the pressing plate-pressing member 403-the extending portion of the guide rail 5-the elastic plate 6-the supporting member 4.

As shown in fig. 3 to 7, the pressing member 403 and the supporting member 4 are connected by a connecting plate, and the pressing member 403 is rotatably coupled to the connecting plate by a pivot shaft. The support member 4 is rotatably coupled to the connection plate by a pivot shaft. In this embodiment, the pivot shafts are fixedly disposed on the connecting plate, and the supporting member 4 and the pressing member 403 are rotatably, i.e. movably sleeved on the pivot shaft, so as to improve the smoothness of rotation, the rolling bearings are sleeved in the pivot holes of the supporting member 4 and the pressing member 403, and then the rolling bearings are assembled on the pivot shafts. Because the abutting member 403 and the supporting member 4 are movably connected to the pivot shaft, the abutting member and the supporting member can rotate along with the deformation of the elastic plate 6 and the guide rail 5, so that the pressure applied to the elastic plate 6 is more uniform, and the deformation stability of the elastic plate 6 is improved.

Specifically, as shown in fig. 7, the supporting members 4 and the pressing members 403 are disposed in a one-to-one correspondence, the supporting members 4 are disposed below the pressing members 403 in a one-to-one correspondence, and the shaping channels 7 are formed between the supporting members 4 and the pressing members 403 to make the elastic plates 6 uniformly stressed. The support member 4 is a roller or a rotating roller. The supporting member 4 in this embodiment is a roller to increase the supporting area of the supporting member 4 for supporting the elastic plate 6, and to improve the stability of the support. The supporting member 4 is also made of wear-resistant plastic, and the material of the supporting member may be the same as or different from that of the pressing member 403. In this embodiment, the materials are selected to be the same and are made of nylon and 30% glass fiber. It should be noted that, since the supporting member 4 in this embodiment is a cylindrical roller, it may be fixed to the connecting plate, and the object of the present invention may be achieved.

As shown in fig. 3 and 5, the first support member group 404a includes three support members 4, and the second support member group 404b includes two support members 4. The link plates include a first link plate 409 and a second link plate 410, wherein two support members 4 are rotatably engaged on the first link plate 409, wherein one support member 4 is engaged on the second link plate 410, and the first link plate 409 and the second link plate 410 are connected by a link group so that the two link plates follow each other.

Further, as shown in fig. 3, 5 and 7, the linkage includes a first link 405 and a second link 406, the first link 405 has three pivoting ends, the second link 406 has two pivoting ends, the two pivoting ends of the first link 405 are respectively pivotally connected to the first link plate 409 and the second link 406, the other pivoting end is pivotally connected to the back frame 1, and the two pivoting ends of the second link 406 are respectively pivotally connected to the second link plate 410 and the first link 405. It should be emphasized that the function of the connecting rod is its connecting and driving function, so the specific shape of the connecting rod is not limited, and it can be a round rod, a flat rod, or a strip plate. The pivot end of the link is the end around which the link rotates, and it should be emphasized that the end is not necessarily a portion protruding from the main body, and the portion functioning as the pivot may be called the pivot end. In addition, an object need not have only two ends, and may have multiple pivoted ends.

In this embodiment, the first connecting plate 409 and the second connecting plate 410 are all followed with the back frame 1, and then the three supporting members 4 and the three abutting members 403 are all followed with the back frame 1 to rotate, so that the guide rail 5 at the gap 3 can be better smoothly transited with the guide rail 5 on the back frame 1, and the massage movement is prevented from being blocked at this position.

As shown in fig. 3, 5 and 7, the second support group 404b comprises two support members 4, the two support members 4 being each coupled to a third connecting plate 408, the third connecting plate 408 being connected to the seat frame 2 by a third link 407. The third link 407 has two pivoting ends pivotally connecting the seat frame 2 and the third connecting plate 408, respectively. In the present exemplary embodiment, the seat carrier 2 is also configured to be rotatable about a fixed axis, but the back carrier 1 and the seat carrier 2 rotate about different axes. Since the third connecting plate 408 is connected to the seat frame 2 by the third link 407, the third connecting plate 408 and the third link 407 follow the seat frame 2, and both the two support members 4 and the two pressing members 403 also rotate following the seat frame 2. In other embodiments, the seat frame 2 may be fixed, and the pivot axes of the two pressing members 403 may be directly fixed on the seat frame 2.

As shown in fig. 8, the first pressing plate 401 has two mounting holes to fixedly mount it on the back frame 1, which rotates following the rotation of the back frame 1. At the lower edge of the first presser plate 401 is an arc-shaped urging portion, and in a normal state, the arc line of the arc-shaped urging portion and the arc line of the elastic plate 6 therebelow are concentric, and the normal state is the initial state of the massager. As shown in fig. 9, the second presser plate 402 also has two mounting holes to be fixedly mounted on the mount 2. The lower edge of the second presser plate 402 is also an arc-shaped urging portion. In a normal state, the arc line of the arc force application part and the arc line generated by bending the elastic plate 6 below the arc force application part are concentric. As shown in fig. 11, the elastic plate 6 and the guide rail 5 are combined together and are tightly attached to each other when in use, and the extension portion of the guide rail 5 extends between the pressing member 403 and the supporting member 4.

During use, the guide rails 5 and the elastic plates 6 at the spacing gaps 3 generate bending deformation along with the rotation of the back frame 1, and the degree of the bending deformation is related to the angle between the seat frames 2 of the back frame 1. Meanwhile, the back frame 1 applies pressure to the pressing members 403 by driving the first pressing plate 401 while the linkage causes the first support member group 404a and the second support member group 404b to be linked. The shaping gap formed between the pressing members 403 and the support members 4 clamps the guide rail 5 and the elastic plate 6 and causes a stable deformation thereof in the shaping channel 7 between the three pressing members 403 and the three support members 4. When the mount 2 rotates, the operation is substantially the same as that of the first presser plate 401.

Other structure of the present embodiment can refer to a whole body massage chair and its chair frame structure of the prior patent application CN201911168391.7 of the applicant.

Example two

In this embodiment, the basic structure is substantially the same as that of the first embodiment, except that the strain holding mechanism 4 is connected only to the back frame 1 and not to the seat frame 2, and only the first pressing plate 401 is provided without the second pressing plate 402, and the structure for engaging with the second pressing plate 402 is eliminated. In the present embodiment, the seat frame 2 is fixedly disposed.

EXAMPLE III

In this embodiment, the basic structure is substantially the same as that of the first embodiment, except that the strain holding mechanism 4 is connected only to the seat frame 2 and not to the back frame 1, and only the second pressing plate 402 is provided without the first pressing plate 401, and the structure for engaging with the first pressing plate 401 is eliminated accordingly. In this embodiment, the back frame 1 is fixedly disposed.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.