WO2021212642A1

WO2021212642A1 - Chair and massage mechanism therefor

Info

Publication number: WO2021212642A1
Application number: PCT/CN2020/097419
Authority: WO
Inventors: 王江林
Original assignee: 恒林家居股份有限公司
Priority date: 2020-04-21
Filing date: 2020-06-22
Publication date: 2021-10-28
Also published as: KR102815127B1; CN111388299B; CN111388299A; KR20230012475A

Abstract

A chair and a massage mechanism therefor. The massage mechanism comprises a mechanism rack (1), two massage crank arms (10), and a kneading assembly. The kneading assembly comprises a kneading shaft (20) and a first motor (21). The massage crank arms (10) are sleeved on the kneading shaft (20) and are rotatable. The first motor (21) drives the kneading shaft (20) to rotate and enables massage rollers (11) on the two massage crank arms (10) to move close to or away from each other to implement a kneading operation. The massage mechanism further comprises a first gear (30) and two rotating bases (31) which are sleeved on the kneading shaft (20) in a contactless manner and rotate synchronously. The two rotating bases (31) are respectively mounted on the left and right sides of the first gear (30). Each rotating base (31) comprises left and right sidewalls and a connection wall (319) connecting the left and right sidewalls. A recess is formed between the left and right sidewalls. A limiting slot (312) is formed on the connection wall (319). The tail end of each massage crank arm (10) extends to form a limiting column (100). The limiting column (100) is inserted into the limiting slot (312) and is movable within the limiting slot (312). A second motor (33) mounted on the mechanism rack (1) drives the first gear (30) and the rotating bases (31) to rotate, thereby driving the massage crank arms (10) to rotate around the kneading shaft (20), thus achieving storage and massage force adjustment functions.

Description

Chair and its massage movement

Technical field

The invention belongs to the field of chairs, and specifically relates to a chair and a massage mechanism thereof.

Background technique

Ordinary office chairs can only meet daily sitting and reclining, and do not have massage functions. So there are office chairs with massage functions, including massage chair frames and massage movements. The massage chair frames are equipped with guide rails and the massage movements include mounting frames. , The mounting frame can slide up and down along the guide rail. The mounting frame is equipped with a massage roller that massages the human body, a kneading component that drives the massage roller to knead, and a percussion component that drives the massage roller to knock. There is a walking component that drives the mounting frame to move along the guide rail. The walking component includes an active walking shaft, a walking roller, a walking gear and a walking motor. The active walking shaft is rotatably set on the mounting frame, and the walking motor is fixed on the mounting frame and drives The active traveling shaft rotates, the traveling roller is set at the end of the active traveling shaft, and can roll along the guide rail, the traveling gear is set on the side of the traveling roller, the guide rail is provided with a rack that meshes with the traveling gear, and the traveling motor is driven The traveling gear rotates to drive the mounting frame to slide up and down along the guide rail.

However, the above-mentioned massage movement can only perform kneading massage and percussion massage with single strength; therefore, if the publication numbers are CN2922880Y, CN100382775C, CN202505713U, CN208448086U, CN109620672A, CN109846683A, CN100581523C, CN109248042A, CN109259995A, CN208448086U, TW201410230A, CN110353963963A, CN110353963963A The patent documents in CN110314078A, CN109172253A, CN209392344U, and CN209392345U all adopt a tiltable base on the mounting frame to realize the adjustment of massage strength.

However, due to the overall tilt of the base, the tilt angle of the base is often relatively small due to factors such as space, and the following two problems are also encountered:

1) The adjustment range of the massage force of the massage mechanism is small, which cannot meet the needs of a wide range of users;

2) When massage is not needed, the massage roller protrudes from the back of the massage chair, that is, when the user's back rests on the back of the massage chair, the massage roller will rest on the back of the human body, which seriously affects the comfort of the user.

Therefore, the Chinese patent document with the publication number CN109620673A discloses an adjustable angle massage manipulator, including a mounting frame and a massage head assembly, the massage head assembly includes a curved arm and a massage head, the massage head is arranged on the curved arm Above, the mounting frame is also provided with a kneading assembly that drives the movement of the crank arm and the massage head. The kneading assembly includes a kneading shaft rotatably arranged on the mounting frame, and the crank arm is rotatably arranged on the kneading shaft , The mounting frame is provided with an adjustment mechanism that can adjust the rotation angle of the crank arm, the adjustment mechanism includes a rotating seat, the rotating seat is rotatably arranged on the mounting frame, and the rotating seat can drive the crank arm to rotate to realize the angle of the crank arm For adjustment, the mounting frame is provided with a driving component that can drive the rotating seat to rotate; by adopting the above solution, the massage manipulator can adjust the angle of the massage head, which is convenient for storage and has better comfort.

However, those skilled in the art have discovered during use that this solution also has the following problems:

1). In the adjustment mechanism, the rotation of the rotating part and the adjustment of the angle of the crank arm are realized through the sliding of the slider and the cooperation of the rack and the gear on the slider. The gear on the rotating seat is not a complete gear, so in the rotating seat During the rotation of the massager, the phenomenon of sliding teeth may occur. At the same time, due to the limited sliding space of the slider, it is difficult for the adjustment angle of the massage crank to exceed 90 degrees. This is because when the adjustment angle of the massage crank exceeds 90 degrees , Then the space required for the sliding of the slider is relatively long, which in turn extends the length of the entire massage movement, which will affect the overall stroke of the massage movement, that is, the movement range of the massage movement on the massage chair is reduced. Then the area that can be massaged on the back of the human body is correspondingly reduced;

2) In the adjustment mechanism, it is difficult to change the corresponding transmission ratio, whether it is the rack on the slider and the gear on the rotating seat, or the thread cooperation between the slider and the screw, and the speed of the motor is very high. Fast, that is, the adjustment process of the massage arm is very fast, which makes it difficult to accurately adjust the massage arm;

3) The rotating seat in the adjusting mechanism has both the function of matching with the rack and the function of matching with the crank arm, so that the rotating seat needs to be produced through a relatively complicated processing process, that is, the processing difficulty of the rotating seat In addition, it is very difficult to reprocess helical gears for a rotating seat with a special structure, which means that the possibility of directly matching the rotating seat through a worm is very low; at the same time, for Although it is feasible to process spur gears for a rotating seat with a special structure, it is difficult to precisely machine, which means that the transmission efficiency of the rotating seat is not high;

4) The slider in the adjustment mechanism has the function of sliding cooperation with the sliding groove and the screw thread, so that the slider needs to be produced through a relatively complicated processing process, that is, the processing of the slider is difficult , The processing cost is high.

technical problem

The object of the present invention is to provide a chair and its massage mechanism, which adjusts the massage crank arm to an angle of up to 180 degrees by setting an adjustment mechanism on the kneading shaft, so as to facilitate storage, improve comfort, and The adjustment mechanism has a simple structure, uses low-processing difficulty or general-purpose parts, has low cost, and has a small space occupancy rate, which is beneficial to the redevelopment of the massage mechanism function.

Technical solutions

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A massage movement includes a movement frame and two left and right massage arms and a kneading assembly mounted on the movement frame. The kneading assembly includes a kneading shaft and a first kneading shaft mounted on the movement frame. A motor, the massage crank is sleeved on the kneading shaft and is rotatable, the top of the massage crank is equipped with a massage roller, the first motor drives the kneading shaft to rotate and makes the massage rollers on the two massage cranks approach each other Or move away from each other to realize the kneading action, characterized in that it also includes a first gear that is hollow on the kneading shaft and rotates synchronously and two rotating seats, the two rotating seats are respectively installed on the left and right sides of the first gear, The rotating seat includes left and right side walls and a connecting wall connecting the left and right side walls. A groove for accommodating the tail of the massage arm is formed between the left and right side walls. A limit groove is provided on the connecting wall, and the end of the massage arm is extended. A limit post is formed, the limit post is inserted in the limit slot and can move in the limit slot, and the second motor installed on the movement frame drives the first gear and the rotating base to rotate, thereby driving the massage song The arm rotates around the kneading axis.

Preferably, an adjusting reduction box is installed on the movement frame, a worm and a first gear are installed in the adjusting reduction box, the worm is meshed with the first gear for transmission, the second motor is connected with the worm for transmission, and the kneading shaft passes through the adjusting shaft. In the reduction box, two rotating seats are respectively located on the left and right sides of the adjusting speed reducer, and the left and right sides of the first gear are exposed from the adjusting speed reducer and are respectively fixedly connected with the left and right rotating seats. In this way, the structure layout is more reasonable, and the volume space is more compact and small.

Preferably, the first gear and the rotating seat are matched with at least two first mounting holes and at least two first protrusions to realize the synchronous rotation of the first gear and the rotating seat;

Alternatively, the first gear and the rotating seat are matched with a non-circular second mounting hole and the second protrusion to realize the synchronous rotation of the first gear and the rotating seat.

Preferably, a second through hole is provided on the connecting wall of the rotating seat, a connecting piece is fixedly installed on the connecting wall of the rotating seat, and a third through hole with a rounded rectangle is provided on the connecting piece. The hole is the limiting groove, wherein the side wall of the third through hole passes through the second through hole and abuts on the second through hole.

Preferably, the circumferential portion of the limiting column in contact with the inner side wall of the limiting groove is a curved surface.

Preferably, a detection component is further provided, and the detection component includes a trigger component and a detection component for detecting the trigger component, wherein the trigger component is installed on the rotating seat, and the detection component is installed on the movement frame.

Preferably, the first motor is connected in transmission with the kneading shaft through the kneading reduction box, one end of the kneading shaft extends into the kneading reduction box, and the other end of the kneading shaft is mounted on the first mounting seat through a bearing, and the kneading speed is reduced. The box and the first mounting seat are respectively fixed on the movement frame.

Preferably, the kneading shaft includes a left section and a right section, the first gear is installed on the middle section of the kneading shaft, and two eccentric shaft sleeves are respectively installed on the left section and the right section of the kneading shaft. , The two massage crank arms are respectively installed on the outer rings of the two eccentric shaft sleeves, the left and right side walls of the rotating seat are hollow sleeves on the kneading shaft and are respectively located on the left and right sides of the massage crank arm; among them, the eccentric shaft sleeve The inner ring is fixedly connected with the kneading shaft, and the axis line of the shaft hole of the inner ring of the eccentric shaft sleeve and the axis line of the shaft hole of the outer ring of the eccentric shaft sleeve are arranged to intersect obliquely.

Preferably, driving wheels are installed on the left and right sides of the movement frame. The driving wheels are driven by a third motor. The wheel axis of the driving wheels is perpendicular to the motor axis of the third motor. The wheel axis of the wheel is parallel and perpendicular to the axis of the worm, the motor axis of the second motor is perpendicular to the axis of the worm, and the motor axis of the first motor is perpendicular to the axis of the kneading shaft. In this way, the structure layout is more reasonable, and the volume space is more compact and small.

A chair includes the massage mechanism described above.

Beneficial effect

The beneficial effects of the present invention are:

1) The massage curved arm of the present invention can be adjusted in angle and has the following two technical effects. One is that when the user does not need to massage the curved arm for massage, the massage curved arm can be adjusted to not protrude from the backrest The degree of surface area to achieve the effect of storage; the second is to achieve the adjustment of different massage strengths by adjusting the angle of the massage arm.

2). Both the first gear and the worm in the present invention can be used as general-purpose parts without special processing. At the same time, the rotating seat has a simple structure and low processing difficulty, which makes the cost of multiple parts for adjusting the angle of the massage crank It is very low, which is conducive to the mass production of industrial production.

3) Since the first gear and worm in the present invention can be selected as standard parts, that is, the transmission ratio between the two is adjustable, so that a deceleration transmission can be formed between the first motor and the massage crank, which is beneficial to improve the massage curve. The accuracy of the arm adjustment.

4) The transmission between the first gear and the worm in the present invention has an extremely low probability of slipping.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the massage mechanism of the present invention;

Figure 2 is a schematic view of the structure of the massage-driven massage arm of the present invention;

Figure 3 is a top view of Figure 3;

Figure 4 is a cross-sectional view of Figure 4;

Figure 5 is a schematic structural view of the first embodiment of the rotating seat of the present invention;

Fig. 6 is a schematic structural view of a second embodiment of the rotating seat of the present invention;

Fig. 7 is a schematic diagram of the structure of the first gear of the present invention.

Description of Reference Signs: 1. Movement frame; 10, massage crank; 100, limit post; 20, kneading shaft; 11, massage roller; 30, first gear; 31, rotating seat; 319, connecting wall; 32. Worm; 33. Second motor; 34. Adjusting gearbox; 300, first mounting hole; 310, first protrusion; 301, second protrusion; 311, second mounting hole; 312, limit Groove; 313, connecting piece; 13, first mounting seat; 21, first motor; 22, kneading gearbox; 23, left eccentric shaft sleeve; 24, right eccentric shaft sleeve; 40, trigger element; 41, detection part ; 50, walking axis; 51, the third motor.

Embodiments of the present invention

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “clockwise”, and “counterclockwise” are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present invention. Limitations of the invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more than two, unless specifically defined otherwise.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

In the present invention, unless expressly stipulated and defined otherwise, the "above" or "below" of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them. Moreover, the "above", "above" and "above" of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature. The “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

Example one:

A massage movement as shown in Figures 1-7, comprising a movement frame 1 and two massage arms 10 arranged on the left and right and a kneading assembly mounted on the movement frame 1. The kneading assembly includes a mounting The kneading shaft 20 and the first motor 21 on the movement frame 1, the massage crank arm 10 is sleeved on the kneading shaft 20 and can rotate, the top of the massage crank arm 10 is equipped with a massage roller 11, the first motor 21. Drive the kneading shaft 20 to rotate and make the massage rollers 11 on the two massage crank arms 10 approach or move away from each other to realize the kneading action. The massage roller 11 can be directly rotatably installed on the massage crank arm 10 through the rotation shaft. Above, you can also refer to the installation method of the massage roller 11 in the publication number CN109620672A; the massage roller 11 can be a non-magnetic roller or a magnetic roller.

In this embodiment, it also includes a first gear 30 that is empty sleeved on the kneading shaft 20 and rotates synchronously and two rotating seats 31. The two rotating seats 31 are respectively installed on the left and right sides of the first gear 30. The rotating seats 31 includes left and right side walls and a connecting wall 319 connecting the left and right side walls. A groove for accommodating the tail of the massage arm 10 is formed between the left and right side walls. A limit groove 312 is provided on the connecting wall 319, and the massage arm The end of 10 extends to form a limit post 100. The limit post 100 is inserted in the limit slot 312 and can move in the limit slot 312. The second motor 33 installed on the movement frame 1 drives the first The gear 30 and the rotating seat 31 rotate, thereby driving the massage crank 10 to rotate around the kneading shaft 20, so that the massage crank 10 can be adjusted in angle, and has the following two technical effects. One is when the user does not need to massage the crank 10 When performing massage, the massage arm 10 can be adjusted to the extent that it does not protrude from the backrest surface to achieve the effect of storage; the second is to adjust the angle of the massage arm 10 to achieve different massage strength adjustments.

In this embodiment, an adjusting reduction box 34 is installed on the movement frame 1, a worm 32 and a first gear 30 are installed in the adjusting reduction box 34, the worm 32 meshes with the first gear 30 for transmission, and the second motor 33 and the worm 32 is in transmission connection. The kneading shaft 20 passes through the adjusting reduction box 34. The two rotating seats 31 are respectively located on the left and right sides of the adjusting reduction box 34. The left and right sides of the first gear 30 are exposed from the adjusting reduction box 34 and respectively It is fixedly connected with the left and right rotating seats 31. In this way, the installation of the worm 32 and the axial fixation of the first gear 30 are completed by adjusting the box body of the reduction box 34, so that the structure layout is more reasonable, and the volume space is more compact and small;

In addition, both the first gear 30 and the worm 32 can be made of universal parts, no special processing is required, and the cost is low, which is conducive to the mass production of industrial production; at the same time, the transmission ratio between the two is adjustable, so that the first motor 21 and the massager A speed reduction transmission can be formed between the crank arms 10, which is beneficial to improve the adjustment accuracy of the massage crank arm 10, and the transmission between the first gear 30 and the worm 32 rarely has the phenomenon of slipping teeth; it is beneficial to improve the operation of the massage crank arm 10 The stability and the reduction of the number of transmission stages between the second motor 33 and the rotating base 31 improve the transmission efficiency.

In this embodiment, the first gear 30 and the rotating seat 31 are matched with at least two first mounting holes 300 and at least two first protrusions 310 to realize the rotation of the first gear 30 Synchronous rotation of the seat 31;

Alternatively, the first gear 30 and the rotating seat 31 are matched with a non-circular second mounting hole 311 and the second protrusion 301 to realize the synchronous rotation of the first gear 30 and the rotating seat 31; In this way, the installation between the rotating seat 31 and the first gear 30 is very convenient and simple.

The rotating seat 31 shown in FIG. 5 is the first implementation in this embodiment: the entire rotating seat 31 is directly injection-molded, and the connecting wall 319 of the rotating seat 31 is provided with a first through hole with a rounded rectangular shape. The first through hole is the limiting groove 312, and it is arranged in such a way that the processing is simple and the cost is low.

The rotating base 31 shown in FIG. 6 is the second implementation in this embodiment: the connecting wall 319 of the rotating base 31 is provided with a second through hole, and the connecting wall 319 of the rotating base 31 is also fixedly installed with a connecting piece 313 The connecting member 313 is provided with a third through hole with a rounded rectangular shape. On the second through hole. This arrangement divides the rotating seat 31 into two separate parts, in order to meet the required strength of the fixing frame and the smoothness required by the limit groove 312 through the difference of materials, and also for the convenience of processing, such as the fixing frame It may be formed by bending a plate, or may be formed by direct injection molding. The limiting groove 312 may be directly injection molded, which is simple to process and low in cost.

It is worth noting that in the above two implementations of the rotating seat 31, the distance between the two open ends of the first through hole and the third through hole is significantly larger than the thickness of other parts of the rotating seat 31. The crank arm 10 needs to bear a relatively large force during the massage process, and the part where the bottom end of the massage crank arm 10 contacts the limit groove 312 is the main stress point. Therefore, the bottom end of the massage crank arm 10 and the limit groove 312 are added The contact area of 312 can reduce the possibility of the tail end of the massage crank 10 breaking.

In this embodiment, the distance between the axis of the kneading shaft 20 and the connecting wall 319 may be greater than the radius of the first gear 30; this setting is to reduce the lever difference between the two ends of the massage crank 10, generally In other words, the distance from the massage end of the massage crank 10 to the kneading shaft 20 is much greater than the distance from the tail end of the massage crank 10 to the kneading shaft 20, so that during the massage, the human back massages the massage crank 10 When the force of the end is converted to the force of the end of the massage crank 10 on the side wall of the limit groove 312, it will greatly increase. Therefore, increasing the distance between the axis of the kneading shaft 20 and the connecting wall 319 can also reduce the massage Possibility of broken end of crank arm 10.

In this embodiment, the circumferential portion of the limiting post 100 in contact with the inner side wall of the limiting groove 312 is a curved surface; further preferably, the limiting post 100 is cylindrical and passes completely through the limiting Slot 312; this arrangement prevents the limiting post 100 from leaving the limiting slot 312 during the movement.

In this embodiment, a detection component is also provided, the detection component includes a trigger component and a detection component for detecting the trigger component, wherein the trigger component is installed on the rotating seat 31, and the detection component is installed on the movement frame 1. superior.

In this embodiment, the first motor 21 is drivingly connected to the kneading shaft 20 through the kneading reduction box 22, one end of the kneading shaft 20 extends into the kneading reduction box 22, and the other end of the kneading shaft 20 is mounted on the kneading shaft 20 through a bearing. On the first mounting seat 13, the kneading reduction box 22 and the first mounting seat 13 are fixed on the movement frame 1 respectively.

In this embodiment, the kneading shaft 20 includes a left section, a middle section, and a right section. The first gear 30 is mounted on the middle section of the kneading shaft 20, and two eccentric shaft sleeves are respectively mounted on the kneading shaft. On the left and right sections of 20, two massage cranks 10 are respectively mounted on the outer rings of two eccentric shaft sleeves, and the left and right side walls of the rotating seat 31 are hollowed on the kneading shaft 20 and are respectively located on the massage cranks. The left and right sides of 10; among them, the inner ring of the eccentric bushing is fixedly connected with the kneading shaft 20, and the axis line of the inner ring of the eccentric bushing and the axis line of the outer ring of the eccentric bushing intersect obliquely; Further preferably, the eccentric shaft sleeve includes a fixedly connected left eccentric shaft sleeve 23 and a right eccentric shaft sleeve 24 to facilitate the installation of the massage crank 10, and the left end of the left eccentric shaft sleeve 23 abuts against the left side wall of the rotating seat 31 And the right section of the right eccentric sleeve 24 abuts against the right side wall of the rotating seat 31, thereby restricting the axial movement of the rotating seat 31.

It is worth noting that in other embodiments, the axis line of the left and right sections of the kneading shaft 20 and the axis line of the middle section of the kneading shaft 20 may be arranged to intersect obliquely, and the kneading can also be achieved. Effect.

In this embodiment, driving wheels are installed on the left and right sides of the movement frame 1, the driving wheels are driven by the third motor 51, the wheel axis of the driving wheels is perpendicular to the motor axis of the third motor 51, and the kneading shaft 20 The axis of the second motor 33 is perpendicular to the axis of the worm 32, and the axis of the first motor 21 is perpendicular to the axis of the kneading shaft 20. vertical. In this way, the structure layout is more reasonable, and the volume space is more compact and small.

A chair includes the massage mechanism described above.

Embodiment two:

The difference between this embodiment and the first embodiment is that a knocking component is also provided in this embodiment.

A kneading and knocking massage movement, comprising a movement frame and two left and right massage arms and a kneading assembly mounted on the movement frame. The kneading assembly includes a kneading assembly mounted on the movement frame. A shaft and a first drive assembly. A massage roller is mounted on the top of the massage crank and the massage crank is rotatably mounted on the kneading shaft. The first drive assembly drives the kneading shaft to rotate to enable massage on the two massage cranks. The rollers are close to each other or far away from each other to realize the kneading action, and are characterized in that they are also provided with:

The percussion assembly includes a percussion shaft installed on the movement frame and a second drive assembly. The second drive assembly drives the percussion shaft to rotate so that the two massage arms can swing back and forth to achieve the percussion action. The shaft and the kneading shaft are distributed in parallel;

The adjustment assembly is used to drive the massage crank to achieve 0-90° forward and backward rotation, and includes a rotating seat and a second motor for driving the rotating seat to rotate. The rotating seat is sleeved on the kneading shaft, and the second motor is fixed on On the movement frame, the bottom ends of the two massage crank arms are in sliding fit with the rotating base, and when the second motor drives the rotating base to rotate, the rotating base can drive the massage crank to rotate.

In this implementation, the first implementation of the adjustment assembly is: further comprising a first gear and a worm, the first gear is rotatably sleeved on the kneading shaft; the worm is installed on the movement frame and is connected to the first The gears are meshed; and are provided with two rotating seats, the two rotating seats are respectively installed on the left and right sides of the first gear, the rotating seat is provided with a limiting slot, and the bottom end of the massage crank is inserted in the limiting slot It can slide in the limit groove, the part on the bottom end of the massage crank that contacts the inner wall of the limit groove is a curved surface; the second motor drives the worm to rotate, and then drives the massage crank to rotate back and forth.

The second embodiment of the adjusting assembly is: further comprising a rack, a sliding block and a screw, the sliding block is slidably mounted on the movement frame, and the sliding direction of the sliding block is the same as the axial direction of the kneading shaft Vertical, the rack is arranged on the upper surface of the slider, the outer peripheral surface of the rotating seat is provided with a rotating gear meshing with the rack, the screw is driven by the second motor and is threadedly matched with the lower surface of the slider. The rotation of the screw driven by the motor can drive the sliding block to slide to drive the rotating base to rotate, and then drive the massage crank to rotate back and forth.

In this embodiment, the specific structure of the percussion assembly can refer to the publication numbers CN2922880Y, CN100382775C, CN202505713U, CN208448086U, CN109620672A, CN109846683A, CN100581523C, CN109248042A, CN109259995A, CN208448086U, TW201410230A, CN110A353963A, CN110U314078A209345209344 What is involved in, generally speaking, the percussion shaft includes a left section, a middle section and a right section, and two massage arms are respectively installed on the left section and the right section;

Wherein, the axis lines of the left and right sections are parallel to but different from the axis of the middle section, and/or, the two massage crank arms are respectively installed on the left and right sections through deflection wheel sleeves, the deflection The wheel sleeve is provided with a mounting hole, and the axis line of the mounting hole is parallel to but different from the axis line of the deflection wheel sleeve.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be construed as limiting the present utility model. Those of ordinary skill in the art will not depart from the present utility model. The above-mentioned embodiment can be changed, modified, replaced and modified within the scope of the present utility model based on the principle and purpose. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

A massage movement, comprising a movement frame (1), two massage arms (10) arranged on the left and right installed on the movement frame (1), and a kneading assembly. The kneading assembly includes a The kneading shaft (20) and the first motor (21) on the core frame (1), the massage crank (10) is sleeved on the kneading shaft (20) and can rotate, the massage crank (10) A massage roller (11) is installed on the top. The first motor (21) drives the kneading shaft (20) to rotate and makes the massage rollers (11) on the two massage arms (10) approach or move away from each other to realize the kneading action , It is characterized in that it also includes a first gear (30) that is empty sleeved on the kneading shaft (20) and rotates synchronously and two rotating seats (31), and the two rotating seats (31) are respectively mounted on the first gear ( On the left and right sides of 30), the rotating seat (31) includes left and right side walls and a connecting wall (319) connecting the left and right side walls. A groove for accommodating the tail of the massage arm (10) is formed between the left and right side walls. , The connecting wall (319) is provided with a limiting groove (312), the tail end of the massage crank (10) extends to form a limiting column (100), and the limiting column (100) is inserted in the limiting groove (312) ) And can move in the limit slot (312), the second motor (33) installed on the movement frame (1) drives the first gear (30) and the rotating seat (31) to rotate, thereby driving the massage crank (10) Rotate around the kneading shaft (20).
A massage movement according to claim 1, characterized in that an adjustment reduction box (34) is installed on the movement frame (1), and a worm (32) and a first gear (32) are installed in the adjustment reduction box (34). 30), the worm (32) meshes with the first gear (30) for transmission, the second motor (33) is in transmission connection with the worm (32), the kneading shaft (20) passes through the adjustment reduction box (34), The two rotating seats (31) are respectively located on the left and right sides of the adjusting speed reducer (34). The left and right sides of the first gear (30) are exposed from the adjusting speed reducer (34) and are connected to the left and right rotating seats (31) respectively. Fixed connection. In this way, the structure layout is more reasonable, and the volume space is more compact and small.
The massage mechanism according to claim 1, wherein the first gear (30) and the rotating seat (31) pass through at least two first mounting holes (300) and at least two first mounting holes (300). The cooperation between the protrusions (310) to realize the synchronous rotation of the first gear (30) and the rotating seat (31);

Alternatively, the first gear (30) and the rotating seat (31) are matched between a non-circular second mounting hole (311) and the second protrusion (301) to realize the first gear ( 30) Synchronous rotation with the rotating seat (31).
The massage mechanism according to claim 1, wherein the connecting wall (319) of the rotating seat (31) is provided with a second through hole, and the connecting wall (319) of the rotating seat (31) is also fixed A connecting piece (313) is installed. The connecting piece (313) is provided with a rounded rectangular third through hole. The third through hole is the limiting groove (312). The side of the third through hole The wall passes through the second through hole and abuts on the second through hole.
The massage mechanism according to claim 1, characterized in that the circumferential part of the limiting column (100) in contact with the inner wall of the limiting groove (312) is a curved surface.
The massage mechanism according to claim 1, characterized in that it is further provided with a detection component, the detection component comprising a trigger component and a detection component for detecting the trigger component, wherein the trigger component is installed on the rotating seat (31), the detection component is installed on the movement frame (1).
A massage mechanism according to claim 1, characterized in that the first motor (21) is in a transmission connection with the kneading shaft (20) through a kneading reduction box (22), and one end of the kneading shaft (20) extends Into the kneading reduction box (22), the other end of the kneading shaft (20) is mounted on the first mounting seat (13) through a bearing, and the kneading reduction box (22) and the first mounting seat (13) are respectively fixed on On the movement frame (1).
The massage mechanism according to claim 1, wherein the kneading shaft (20) includes a left middle section and a right section, and the first gear (30) is mounted on the kneading shaft (20). The two eccentric shaft sleeves are respectively installed on the left and right sections of the kneading shaft (20), and the two massage crank arms (10) are respectively installed on the outer rings of the two eccentric shaft sleeves. The left and right side walls of (31) are hollow sleeves on the kneading shaft (20) and are respectively located on the left and right sides of the massage crank (10); among them, the inner ring of the eccentric shaft sleeve is fixedly connected to the kneading shaft (20), The shaft center line of the inner ring shaft hole of the eccentric shaft sleeve and the shaft center line of the outer ring shaft hole of the eccentric shaft sleeve intersect obliquely.
A massage movement according to claim 1, characterized in that, active walking wheels are installed on the left and right sides of the movement frame (1), the active walking wheels are driven by the third motor (51), and the wheels of the active walking wheels The axis is perpendicular to the motor axis of the third motor (51), the axis of the kneading shaft (20) is parallel to the wheel axis of the driving wheel and perpendicular to the axis of the worm (32), and the motor axis of the second motor (33) It is perpendicular to the axis of the worm (32), and the motor axis of the first motor (21) is perpendicular to the axis of the kneading shaft (20). In this way, the structure layout is more reasonable, and the volume space is more compact and small.
A chair, characterized by comprising the massage movement core according to any one of claims 1-9.