A shock absorbing mechanism for a massage chair base

Abstract

The present invention relates to the technical field of massage chairs, and specifically to a shock absorbing mechanism for a massage chair base, comprising a shock absorber, wherein the fixed end of the shock absorber is connected to a cross beam, the telescopic end of the shock absorber is connected to a spring cover plate, a spring fixing seat is installed on the outer wall of the fixed end of the shock absorber, a first shock absorbing spring is connected between the spring fixing seat and the spring cover plate, an adjusting component is installed on the mounting plate, and the adjusting component is connected to the spring fixing seat. When the massage chair is in use, the present invention can absorb the vibration force through the mutual cooperation between the first shock absorbing spring and the shock absorber, thereby buffering the vibration of the base body caused by the use of the massage chair, ensuring the stability of the base body when the massage chair is in use, and the spring fixing seat can be made to slide along the shock absorber through the adjusting component, so as to adjust the deformation degree of the first shock absorbing spring in a non-stressed state, so that the shock absorbing mechanism can adjust the softness and hardness according to the needs of different groups of people, thereby improving the applicability of the massage chair.

Description

Technical Field

[0001] The invention relates to the technical field of massage chairs, in particular to a shock absorbing mechanism for a massage chair base. Background Art

[0002] The massage chair uses mechanical rolling force and mechanical extrusion to perform massage. Artificial massage can dredge the meridians, circulate qi and blood, and maintain the body's yin and yang balance. Therefore, after the massage, you can feel your muscles relaxed, your joints flexible, and you can be invigorated and fatigue eliminated, which plays an important role in ensuring good health.

[0003] In order to facilitate movement after being placed and improve the functionality of the massage chair, the existing massage chair often has arc feet at the bottom of the base of the massage chair, so that the massage chair can swing back and forth and have the function of a rocking chair, such as a massage chair with patent application number CN201610549311.2, which includes a chair body and a base for supporting the chair body, the base includes a support frame, arc guide rails are respectively provided on both sides of the top of the support frame, arc feet are respectively provided on both sides of the bottom of the support frame, the arc guide rails are arranged in the arc grooves on the back of the massage chair, and the inner side of the arc guide rails is provided with arc guide grooves along the arc guide rails; a storage space for installing equipment is formed in the support frame, but the massage chair base cannot buffer the vibration caused to the base body when the massage chair is in use, and cannot ensure the stability of the base body when the massage chair is in use. Based on this, the present invention designs a shock absorbing mechanism for the massage chair base to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a shock absorbing mechanism for a massage chair base, which can buffer the vibration caused to the base body when the massage chair is in use, and ensure the stability of the base body when the massage chair is in use.

[0005] To achieve the above object, the present invention provides the following technical solution: a shock absorbing mechanism for a massage chair base, comprising two parallel beams and two parallel arc-shaped guide rails, wherein the beams and the arc-shaped guide rails are arranged one-to-one, a mounting plate is connected between the two beams, an arc-shaped guide groove is provided on the inner side of the arc-shaped guide rail along the arc-shaped guide rail, and the arc-shaped guide rail and the beam on the same side are connected by two shock absorbing mechanisms;

[0006] The shock absorbing mechanism includes a shock absorber, the fixed end of the shock absorber is connected to the cross beam, the telescopic end of the shock absorber is connected to a spring cover, a spring fixing seat is installed on the outer wall of the fixed end of the shock absorber, and the spring fixing seat is slidably connected to the shock absorber, a first shock absorbing spring is connected between the spring fixing seat and the spring cover, a connecting head connected to an arc guide rail is provided on the top of the spring cover, an adjusting component is installed on the mounting plate, the adjusting component is connected to the spring fixing seat, and the adjusting component drives the spring fixing seat to slide up and down along the outer wall of the fixed end of the shock absorber.

[0007] Preferably, the adjustment assembly includes a driving member, which is mounted on a mounting plate, a power output end of the driving member is connected to a screw elevator arranged in a one-to-one correspondence with a spring fixing seat, a side wall of the spring fixing seat is connected to a slider, and the slider is connected to a thread of the screw elevator.

[0008] Preferably, the driving member includes a driving motor and a rotating shaft, the input shafts of the two screw elevators on the same side are connected via a rotating shaft, a driven sprocket is sleeved on the outer wall of the rotating shaft, a driving sprocket is sleeved on the outer wall of the output end of the driving motor, and the driving sprocket is connected to the driven sprockets on both sides via a chain.

[0009] Preferably, a limit strip is provided on the outer wall of the fixed end of the shock absorber along the sliding direction of the spring fixing seat, and a limit groove cooperating with the limit strip is provided on the inner wall of the spring fixing seat.

[0010] Preferably, a bearing seat cooperating with the rotating shaft is provided on the mounting plate.

[0011] Preferably, the shock absorbing mechanism also includes a limit assembly, which includes a fixing ring and four limit columns, the fixing ring is sleeved on the outer wall of the fixed end of the shock absorber, the four limit columns are installed at equal angles on a side of the spring cover plate close to the spring fixing seat, the fixing ring is penetrated by a first through hole that cooperates with the limit column, when the shock absorber is in an unstressed state, the free end of the limit column passes through the first through hole and is flush with the side of the fixing ring away from the spring cover plate, and the side of the spring fixing seat close to the fixing ring is provided with a flip piece that cooperates with the first through hole, when the spring fixing seat slides to the highest position, the flip piece abuts against the fixing ring and causes the flip piece to flip and cover the first through hole.

[0012] Preferably, the spring fixing seat is penetrated by a second through hole which cooperates with the limiting column.

[0013] Preferably, a second shock-absorbing spring is sleeved on the outer wall of the limiting column, and the second shock-absorbing spring is located between the fixing ring and the spring cover plate.

[0014] Preferably, the flip member includes a hinged seat, which is installed on a spring fixed seat, and a stopper is hinged on the hinged seat. When the spring fixed seat abuts against the fixed ring, when the spring fixed seat slides to the highest position, the side of the stopper away from the hinged seat abuts against the fixed ring and covers the first through hole, and the width of the stopper is greater than the width of the hinged seat. In a natural state, the side of the stopper close to the hinged seat abuts against the side wall of the hinged seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a shock absorbing mechanism on the base of the massage chair, and the shock absorbing mechanism consists of a shock absorber, a first shock absorbing spring and a spring fixing seat, so that when the massage chair is in use, the first shock absorbing spring and the shock absorber can cooperate with each other to absorb the vibration force, thereby buffering the vibration of the base body caused by the use of the massage chair, ensuring the stability of the base body when the massage chair is in use, and the spring fixing seat can be made to slide along the shock absorber through the adjustment component to adjust the deformation degree of the first shock absorbing spring in the unstressed state, so that the shock absorbing mechanism can adjust the softness and hardness according to the needs of different groups of people, thereby improving the applicability of the massage chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a massage chair in the prior art;

[0019] Figure 2 It is a structural schematic diagram of a massage chair base in the prior art;

[0020] Figure 3 It is a schematic structural diagram of the massage chair base of the present invention at a first angle;

[0021] Figure 4 It is a schematic structural diagram of the massage chair base of the present invention at a second angle;

[0022] Figure 5 for Figure 3 Schematic diagram of the local structure;

[0023] Figure 6 It is a schematic diagram of the structure of the driving component in the massage chair base of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the shock absorber and its connecting parts in the massage chair base of the present invention;

[0025] Figure 8 for Figure 7 Schematic diagram of the decomposition structure;

[0026] Fig. 9 for Figure 8 A schematic diagram of the structure enlargement at the center A;

[0027] Fig.10 It is a schematic diagram of the structure of the turning member in the massage chair base of the present invention;

[0028] Fig.11 It is a schematic diagram of the partial structure of the shock absorber when the spring fixing seat in the massage chair base of the present invention is located at the highest position.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. crossbeam; 2. arc guide rail; 3. mounting plate; 4. shock absorbing mechanism; 41. shock absorber; 42. spring cover plate; 43. spring fixing seat; 431. slider; 432. second through hole; 44. first shock absorbing spring; 45. connector; 46. adjustment assembly; 461. driving member; 4611. driving motor; 4612. rotating shaft; 4613. driven sprocket; 4614. driving sprocket; 4615. chain; 4616. bearing seat; 462. screw elevator; 47. limiting assembly; 471. fixing ring; 472. limiting column; 473. first through hole; 474. flip member; 4741. hinged seat; 4742. stopper; 4743. inclined plane; 475. second shock absorbing spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-11 The present invention provides a technical solution: a shock absorbing mechanism for a massage chair base, comprising two parallel beams 1 and two parallel arc guide rails 2, wherein the beams 1 and the arc guide rails 2 are arranged one-to-one, a mounting plate 3 is connected between the two beams 1, an arc guide groove along the arc guide rail 2 is provided on the inner side of the arc guide rail 2, and the arc guide rail 2 and the beam 1 on the same side are connected via two shock absorbing mechanisms 4;

[0033] The shock absorbing mechanism 4 includes a shock absorber 41, the fixed end of the shock absorber 41 is connected to the cross beam 1, the telescopic end of the shock absorber 41 is connected to a spring cover plate 42, a spring fixing seat 43 is installed on the outer wall of the fixed end of the shock absorber 41, and the spring fixing seat 43 is slidably connected to the shock absorber 41, a first shock absorbing spring 44 is connected between the spring fixing seat 43 and the spring cover plate 42, a connecting head 45 connected to the arc guide rail 2 is arranged on the top of the spring cover plate 42, an adjusting component 46 is installed on the mounting plate 3, the adjusting component 46 is connected to the spring fixing seat 43, and the adjusting component 46 drives the spring fixing seat 43 to slide up and down along the outer wall of the fixed end of the shock absorber 41.

[0034] Specifically, the adjustment component 46 includes a driving member 461, which is installed on the mounting plate 3. The power output end of the driving member 461 is connected to a screw elevator 462 which is arranged one-to-one with the spring fixing seat 43. The side wall of the spring fixing seat 43 is connected to a slider 431, and the slider 431 is threadedly connected to the screw elevator 462.

[0035] From the above description, it can be seen that the driving member drives the screw in the spiral elevator to rotate, and drives the slider and the spring fixing seat to slide, thereby pushing the first shock-absorbing spring to deform, so as to adjust the elasticity of the first shock-absorbing spring, and the spiral elevator has the advantages of high adjustment accuracy, smooth transmission and accurate positioning.

[0036] Specifically, the driving member 461 includes a driving motor 4611 and a rotating shaft 4612. The input shafts of the two spiral elevators 462 on the same side are connected via the rotating shaft 4612. A driven sprocket 4613 is sleeved on the outer wall of the rotating shaft 4612. A driving sprocket 4614 is sleeved on the outer wall of the output end of the driving motor 4611. The driving sprocket 4614 is connected to the driven sprockets 4613 on both sides via a chain 4615.

[0037] From the above description, it can be seen that the power transmission method of transmission shaft and sprocket is adopted, so that only one set of motors is needed to realize the simultaneous operation of multiple sets of screw elevators, which not only reduces the cost of the equipment but also ensures the synchronization between the multiple sets of screw elevators.

[0038] Specifically, a limit strip 411 is disposed on the outer wall of the fixed end of the shock absorber 41 along the sliding direction of the spring fixing seat 43 , and a limit groove cooperating with the limit strip 411 is opened on the inner wall of the spring fixing seat 43 .

[0039] It can be seen from the above description that the stability of the up and down sliding of the spring fixing seat can be ensured by the mutual cooperation between the limiting strip and the limiting groove.

[0040] Specifically, a bearing seat 4616 that cooperates with the rotating shaft 4612 is provided on the mounting plate 3.

[0041] It can be seen from the above description that the bearing seat can provide support for the rotating shaft.

[0042] Specifically, the shock absorbing mechanism 4 also includes a limiting assembly 47, which includes a fixing ring 471 and four limiting columns 472. The fixing ring 471 is sleeved on the outer wall of the fixed end of the shock absorber 41, and the four limiting columns 472 are installed at equal angles on a side of the spring cover plate 42 close to the spring fixing seat 43. The fixing ring 471 is penetrated by a first through hole 473 that cooperates with the limiting column 472. When the shock absorber 41 is in an unstressed state, the free end of the limiting column 472 passes through the first through hole 473 and is flush with the side of the fixing ring 471 away from the spring cover plate 42. A flip piece 474 that cooperates with the first through hole 473 is provided on the side of the spring fixing seat 43 close to the fixing ring 471. When the spring fixing seat 43 slides to the highest position, the flip piece 474 abuts against the fixing ring 471 and causes the flip piece 474 to flip over to cover the first through hole 473.

[0043] From the above description, it can be seen that: when the spring fixing seat is in the highest position, the first through hole is covered by the flip piece, and the limit column is restricted from sliding up and down in the first through hole, so that the shock absorber is in a locked state, and the entire shock absorbing mechanism loses its shock absorbing effect, thereby adapting to different user groups and usage environments.

[0044] Specifically, the spring fixing seat 43 is penetrated by a second through hole 432 which cooperates with the limiting column 472 .

[0045] From the above description, it can be seen that when the position of the spring fixing seat changes, the limit column can pass through the first through hole and the second through hole in sequence during the vibration of the shock absorber, so that the position change of the spring fixing seat will not interfere with the use of the shock absorber, thereby ensuring the normal use of the shock absorber.

[0046] Specifically, a second shock absorbing spring 475 is sleeved on the outer wall of the limiting column 472 , and the second shock absorbing spring 475 is located between the fixing ring 471 and the spring cover plate 42 .

[0047] It can be seen from the above description that the overall damping strength of the damping mechanism can be further improved by providing the second damping spring.

[0048] Specifically, the flip member 474 includes a hinged seat 4741, which is installed on the spring fixed seat 43. A stopper 4742 is hinged on the hinged seat 4741. When the spring fixed seat 43 abuts against the fixing ring 471, when the spring fixed seat 43 slides to the highest position, the side of the stopper 4742 away from the hinged seat 4741 abuts against the fixing ring 471 and covers the first through hole 473. The width of the stopper 4742 is greater than the width of the hinged seat 4741. In the natural state, the side of the stopper 4742 close to the hinged seat 4741 abuts against the side wall of the hinged seat 4741.

[0049] It can be known from the above description that the first through hole can be covered by turning over the stopper, thereby playing a role of limiting.

[0050] A specific application example of this embodiment is:

[0051] Please refer to Figure 3 As shown: a shock absorbing mechanism for a massage chair base, comprising two parallel beams 1 and two parallel arc guide rails 2, wherein the beams 1 and the arc guide rails 2 are arranged one to one, a mounting plate 3 is connected between the two beams 1, an arc guide groove is provided on the inner side of the arc guide rail 2 along the arc guide rail 2, and the arc guide rail 2 and the beam 1 on the same side are connected via two shock absorbing mechanisms 4;

[0052] Please refer to Figure 4 , 5 , 7 and 8: the shock absorbing mechanism 4 includes a shock absorber 41, the fixed end of the shock absorber 41 is connected to the cross beam 1, the telescopic end of the shock absorber 41 is connected to a spring cover plate 42, a spring fixing seat 43 is installed on the outer wall of the fixed end of the shock absorber 41, and the spring fixing seat 43 is slidably connected to the shock absorber 41, a first shock absorbing spring 44 is connected between the spring fixing seat 43 and the spring cover plate 42, a connector 45 connected to the arc guide rail 2 is arranged on the top of the spring cover plate 42, an adjusting component 46 is installed on the mounting plate 3, the adjusting component 46 is connected to the spring fixing seat 43, and the adjusting component 46 drives the spring fixing seat 43 to slide up and down along the outer wall of the fixed end of the shock absorber 41.

[0053] Please refer to Figure 4As shown: the adjustment component 46 includes a driving member 461, which is installed on the mounting plate 3. The power output end of the driving member 461 is connected to a spiral elevator 462 which is arranged in a one-to-one correspondence with the spring fixing seat 43. The side wall of the spring fixing seat 43 is connected to a slider 431, and the slider 431 is threadedly connected to the spiral elevator 462. A limit strip 411 is arranged on the outer wall of the fixed end of the shock absorber 41 along the sliding direction of the spring fixing seat 43. A limit groove which cooperates with the limit strip 411 is arranged on the inner wall of the spring fixing seat 43. The driving member drives the screw in the spiral elevator to rotate, and drives the slider and the spring fixing seat to slide, thereby pushing the first shock-absorbing spring to deform, so as to adjust the elasticity of the first shock-absorbing spring. The spiral elevator has the advantages of high adjustment accuracy, stable transmission and accurate positioning, and the stability of the spring fixing seat sliding up and down can be ensured by the mutual cooperation between the limit strip and the limit groove.

[0054] Please refer to Figure 6 As shown: the driving member 461 includes a driving motor 4611 and a rotating shaft 4612, the input shafts of the two spiral elevators 462 on the same side are connected through the rotating shaft 4612, the outer wall of the rotating shaft 4612 is provided with a driven sprocket 4613, the outer wall of the output end of the driving motor 4611 is provided with a driving sprocket 4614, the driving sprocket 4614 and the driven sprockets 4613 on both sides are connected by a chain 4615, and the power is transmitted by the transmission shaft and the sprocket, so that only one set of motors is needed to realize the simultaneous operation of multiple sets of spiral elevators, which not only reduces the cost of the equipment but also ensures the synchronization between the multiple sets of spiral elevators, and a bearing seat 4616 that cooperates with the rotating shaft 4612 is provided on the mounting plate 3, and the rotating shaft can be supported by setting the bearing seat.

[0055] Please refer to Figure 7 and 8As shown: the shock absorbing mechanism 4 also includes a limiting component 47, the limiting component 47 includes a fixing ring 471 and four limiting columns 472, the fixing ring 471 is sleeved on the outer wall of the fixed end of the shock absorber 41, and the four limiting columns 472 are installed at equal angles on a side of the spring cover 42 close to the spring fixing seat 43, the outer wall of the limiting column 472 is sleeved with a second shock absorbing spring 475, and the second shock absorbing spring 475 is located between the fixing ring 471 and the spring cover 42. By arranging the second shock absorbing spring, the overall shock absorbing strength of the shock absorbing mechanism can be further improved. The fixing ring 471 is penetrated by a first through hole 473 that cooperates with the limiting column 472. When the shock absorber 41 is in an unstressed state, the free end of the limiting column 472 passes through the first through hole 473 and is flush with the side of the fixing ring 471 away from the spring cover 42, and the spring fixing seat 43 is close to the side of the fixing ring 471 The surface is provided with a flip piece 474 that cooperates with the first through hole 473. When the spring fixing seat 43 slides to the highest position, the flip piece 474 abuts against the fixing ring 471 and makes the flip piece 474 flip over to cover the first through hole 473. When the spring fixing seat is at the highest position, the first through hole is covered by the flip piece to limit the limit column from sliding up and down in the first through hole, so that the shock absorber is in a locked state, and the entire shock absorbing mechanism loses its shock absorbing effect, so as to adapt to different user groups and usage environments. In addition, the spring fixing seat 43 is penetrated by a second through hole 432 that cooperates with the limit column 472, so that when the position of the spring fixing seat changes, the limit column can pass through the first through hole and the second through hole in sequence during the vibration of the shock absorber, so that the position change of the spring fixing seat will not interfere with the use of the shock absorber, thereby ensuring the normal use of the shock absorber.

[0056] Please refer to Fig.10 and 11 As shown: the flip member 474 includes a hinge seat 4741, which is mounted on the spring fixing seat 43, and a stopper 4742 is hinged on the hinge seat 4741;

[0057] When the spring fixing seat 43 abuts against the fixing ring 471, when the spring fixing seat 43 slides to the highest position, the side of the stopper 4742 away from the hinge seat 4741 abuts against the fixing ring 471 and covers the first through hole 473 (that is, the stopper is in a position perpendicular to the hinge seat, such as Fig.11 );

[0058] The width of the stopper 4742 is greater than the width of the hinge seat 4741. Since the width of the stopper 4742 is greater than the width of the hinge seat 4741, in a natural state, the side of the stopper 4742 close to the hinge seat 4741 abuts against the side wall of the hinge seat 4741 (that is, the hinge seat is in a position parallel to the hinge seat, and the hinge seat can limit the position of the stopper), and in order to enable the stopper to flip along the direction of the first through hole when it abuts against the fixing ring, in this embodiment, an inclined slope 4743 is set on the end of the stopper that is away from the side of the hinge seat 4741 and first contacts the fixing ring, so as to ensure that the stopper can flip smoothly.

[0059] The working principle of the above embodiment is:

[0060] When the base is used, the base is connected to the chair body by the same installation method as the base in patent application number CN201610549311.2, so that the massage chair can be used normally;

[0061] When the massage chair is in use, when the massage mechanism on the massage chair is turned on, the chair body vibrates to massage the human body, and the vibration force is transmitted to the shock absorbing mechanism 4 through the arc guide rail 2 and the shock absorbing mechanism 4 absorbs the vibration force, thereby ensuring the stability of the base body when the massage chair is in use;

[0062] The shock absorbing principle of the shock absorbing mechanism 4 is as follows: the shock force is transmitted to the connecting head 45 of the shock absorber 41 by the arc guide rail 2, and the connecting head 45 pushes the telescopic end of the shock absorber 41 to slide through the spring cover plate 42, so that the first shock absorbing spring 44 and the second shock absorbing spring 475 are deformed to absorb the shock force. At the same time, the telescopic end of the shock absorber 41 pushes the piston inside it to slide up and down, so that the oil in the cavity of the shock absorber 41 repeatedly flows from one cavity to another cavity through different gaps. At this time, the friction between the hole wall and the oil forms a damping force, so that the shock force absorbed by the first shock absorbing spring 44 is converted into oil heat energy and evaporated into the air, thereby achieving a shock absorbing effect and suppressing the vibration jump of the first shock absorbing spring 44. The shock force is well absorbed under the joint action of the shock absorber 41 and the first shock absorbing spring 44, thereby ensuring the stability of the base body when the massage chair is in use;

[0063] In addition, during the reciprocating sliding process of the spring cover plate 42, the limiting column 472 will be pushed to reciprocate through the first through hole 473 and the second through hole 432, so as not to interfere with the use of the shock absorbing mechanism 4;

[0064] When different groups of users need different damping forces (hardness or softness) of the damping mechanism 4, the driving motor 4611 can be started through the external switch on the massage chair. The driving motor 4611 rotates to drive the active sprocket 4614, and the driven sprockets 4613 and the rotating shaft 4612 on both sides are driven to rotate through the chain 4615, thereby driving the four sets of spiral elevators 462 to rotate and drive the slider 431 and the spring fixing seat 43 to slide up and down. The spring fixing seat 43 slides up and down to push the first damping spring 444 to deform, and then adjust the initial deformation degree of the first damping spring 444 in the natural state (unstressed state) to adjust the hardness or softness of the damping mechanism 4. Then the user sits on the massage chair to use it.

[0065] When the user does not need the shock absorbing mechanism 4 to work (i.e., the shock absorbing mechanism 4 is set to a locked state), the driving motor 4611 is started, and the driving motor 4611 drives the spring fixing seat 43 to slide upward along the shock absorber 41. When one end of the stopper 4742 provided with the inclined surface 4743 on the flipping member 474 contacts the fixing ring 471, as the spring fixing seat 43 continues to slide, the stopper 4742 can be flipped over and cover the first through hole 473 due to the action of the inclined surface 4743. The shock absorbing mechanism 4 is in an unstressed state. At this time, the bottom of the limiting column 472 penetrates into the first through hole 473 and is flush with the bottom of the fixing ring 471, so that the stopper 4742 can contact the limiting column 472 after flipping to limit the limiting column 472, and limit the limiting column 472 from sliding in the first through hole 473, so that the shock absorbing mechanism 4 is in a locked state, so that the overall structure of the base is rigidly connected to adapt to different users. When the shock absorbing mechanism 4 is in a locked state, the user sits on the massage chair to use it;

[0066] When the shock absorbing mechanism 4 is to be opened, the driving motor 4611 drives the spring fixing seat 43 to slide downward, so that the stopper 4742 is separated from the fixing ring 471, and the first through hole 473 is opened. The stopper 4742 is flipped along the hinge position of the hinge seat 4741 under the action of its own gravity (the stopper 4742 can also be flipped by the upper and lower sliding of the limit column 472 and the contact with the stopper 4742 to generate a flipping force).

[0067] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limitation on the present invention.

[0068] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock absorbing mechanism for a massage chair base, comprising two parallel cross beams (1) and two parallel arc guide rails (2), wherein the cross beams (1) and the arc guide rails (2) are arranged in a one-to-one correspondence, a mounting plate (3) is connected between the two cross beams (1), and an arc guide groove is provided on the inner side of the arc guide rail (2) along the arc guide rail (2), characterized in that: The arc-shaped guide rail (2) and the crossbeam (1) on the same side are connected via two shock absorbing mechanisms (4); The shock absorbing mechanism (4) comprises a shock absorber (41), the fixed end of the shock absorber (41) is connected to the cross beam (1), the telescopic end of the shock absorber (41) is connected to a spring cover plate (42), a spring fixing seat (43) is installed on the outer wall of the fixed end of the shock absorber (41), and the spring fixing seat (43) is slidably connected to the shock absorber (41), a first shock absorbing spring (44) is connected between the spring fixing seat (43) and the spring cover plate (42), a connector (45) connected to the arc guide rail (2) is arranged on the top of the spring cover plate (42), an adjustment component (46) is installed on the mounting plate (3), the adjustment component (46) is connected to the spring fixing seat (43), and the adjustment component (46) drives the spring fixing seat (43) to slide up and down along the outer wall of the fixed end of the shock absorber (41); The shock absorbing mechanism (4) further comprises a limiting assembly (47), wherein the limiting assembly (47) comprises a fixing ring (471) and four limiting columns (472), wherein the fixing ring (471) is sleeved on the outer wall of the fixed end of the shock absorber (41), and the four limiting columns (472) are installed at equal angles on a side surface of the spring cover plate (42) close to the spring fixing seat (43), and the fixing ring (471) is penetrated by a first through hole (473) which cooperates with the limiting column (472). When the shock absorber (41) is not subjected to the shock absorbing mechanism (4), the fixing ring (471) is provided with a first through hole (473) which cooperates with the limiting column (472). In the force state, the free end of the limiting column (472) passes through the first through hole (473) and is flush with the side of the fixing ring (471) away from the spring cover plate (42); the side of the spring fixing seat (43) close to the fixing ring (471) is provided with a flip member (474) that cooperates with the first through hole (473); when the spring fixing seat (43) slides to the highest position, the flip member (474) abuts against the fixing ring (471) and causes the flip member (474) to flip over and cover the first through hole (473).

2. The shock absorbing mechanism for a massage chair base according to claim 1, characterized in that: The adjustment assembly (46) comprises a driving member (461), the driving member (461) being mounted on the mounting plate (3), the power output end of the driving member (461) being connected to a screw elevator (462) arranged in a one-to-one correspondence with the spring fixing seat (43), the side wall of the spring fixing seat (43) being connected to a slider (431), and the slider (431) being threadedly connected to the screw elevator (462).

3. The shock absorbing mechanism for a massage chair base according to claim 2, characterized in that: The driving member (461) comprises a driving motor (4611) and a rotating shaft (4612); the input shafts of the two screw elevators (462) on the same side are connected via the rotating shaft (4612); a driven sprocket (4613) is sleeved on the outer wall of the rotating shaft (4612); a driving sprocket (4614) is sleeved on the outer wall of the output end of the driving motor (4611); and the driving sprocket (4614) and the driven sprockets (4613) on both sides are connected via chains (4615).

4. The shock absorbing mechanism for a massage chair base according to claim 2, characterized in that: A limit strip (411) is provided on the outer wall of the fixed end of the shock absorber (41) along the sliding direction of the spring fixing seat (43), and a limit groove cooperating with the limit strip (411) is provided on the inner wall of the spring fixing seat (43).

5. The shock absorbing mechanism for a massage chair base according to claim 3, characterized in that: The mounting plate (3) is provided with a bearing seat (4616) which cooperates with the rotating shaft (4612).

6. The shock absorbing mechanism for a massage chair base according to claim 1, characterized in that: The spring fixing seat (43) is penetrated by a second through hole (432) that cooperates with the limiting column (472).

7. The shock absorbing mechanism for a massage chair base according to claim 1, characterized in that: A second shock absorbing spring (475) is sleeved on the outer wall of the limiting column (472), and the second shock absorbing spring (475) is located between the fixing ring (471) and the spring cover plate (42).

8. The shock absorbing mechanism for a massage chair base according to claim 1, characterized in that: The flip member (474) comprises a hinge seat (4741), wherein the hinge seat (4741) is mounted on a spring fixing seat (43), and a stopper (4742) is hingedly connected to the hinge seat (4741). When the spring fixing seat (43) abuts against the fixing ring (471), when the spring fixing seat (43) slides to the highest position, a side of the stopper (4742) away from the hinge seat (4741) abuts against the fixing ring (471) and covers the first through hole (473). The width of the stopper (4742) is greater than the width of the hinge seat (4741). When the stopper (4742) is in a natural state, a side of the stopper (4742) close to the hinge seat (4741) abuts against a side wall of the hinge seat (4741).

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