A waist and hip massaging structure and a massage chair

Abstract

The application provides a top waist and hip massage structure and a massage chair. The top waist and hip massage structure comprises a top waist push rod, a push rod connecting assembly and two top waist components. The two top waist components are symmetrically arranged on both sides of a backrest frame of the massage chair. The top waist component comprises a seat plate and a crank sliding rod mechanism. The seat plate is arranged at a position corresponding to the waist and hip of a human body on the backrest frame. The crank sliding rod mechanism comprises cranks, connecting rods and sliding rods connected in pairs. The seat plate is mounted on the sliding rod. The crank is hinged to the bottom of the backrest frame to form a fulcrum. The two ends of the push rod connecting assembly are respectively connected with the corresponding cranks on both sides. The top waist push rod provides power to the two cranks through the push rod connecting assembly to rotate around the respective fulcrums. The crank rotates the connecting rod to make the sliding rod produce linear motion back and forth. The linear motion of the sliding rod acts on the seat plate to push out or retract relative to the backrest frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of massage chairs, in particular to a waist and hip lifting and stretching structure and a massage chair. BACKGROUND

[0002] The current market massage chairs, the human body waist push-pull is mostly achieved by two ways. Way one, through the installation of air bag in the backrest waist to achieve, the air bag inflation, the human body waist is pushed out, the air bag deflation, under the action of the body weight, the waist is reset to the backrest. Way two, install a fan-shaped gear on the massage wheel fixed frame, through the drive of the fan-shaped gear rotation to lift the massage wheel, realize the lifting of the human back.

[0003] The above two ways have certain defects. Way one, if a small volume of back air bag is used, the lifting height will be small; if a large volume of air bag is used, the lifting height can be ensured, but the lifting speed is affected by the air bag capacity, the inflation time is long, and the lifting speed is not fast. Way two, the lifting height of the massage wheel is affected by the thickness direction size of the core, the lifting height of the fan-shaped gear is small.

[0004] The existing product lifting waist way one, through the installation of air bag in the backrest waist to lift. As shown in Figure 1 , the backrest air bag assembly 3 is fixed on the soft package 2, the soft package 2 is inserted into the backrest cover 1, the air bag is inflated, the cover is lifted, thereby achieving the effect of lifting the human waist. Due to the restraint of the backrest cover, the lifting height is limited; if the cover is loose enough to allow the air bag to reach a larger lifting height, the air bag needs to increase the number of layers. Due to the large volume of the air bag, the inflation time will be very long, which will affect the experience intensity and rhythm of the consumer.

[0005] The existing product lifting waist way two, through the fan-shaped gear to lift the massage wheel assembly. As shown in Figure 2 -3, the massage wheel is in the initial state of lifting, the massage wheel assembly 6 is fixed on the fan-shaped gear 3, the core rear cover 2 is locked on the fixed frame assembly 5, one end of the massage wheel assembly 6 passes through the rotating shaft 1 (the rotating shaft 1 is locked on the fixed frame assembly 5), and the other end is engaged with the lifting gear 4.

[0006] When the lifting gear 4 is driven to rotate, the fan-shaped gear 3 is driven to rotate, thereby driving the lifting of the massage wheel assembly 6. When the massage wheel is in the maximum state of lifting, the distance between the fan-shaped gear 3 and the core rear cover 2 is d, which is often not large due to the influence of the core shape size, resulting in insufficient lifting force.

[0007] As consumers demand higher levels of lumbar support, they also place greater emphasis on the range and frequency of lumbar thrust. This is especially true for branded clients, who find traditional lumbar thrust methods insufficient to enhance product competitiveness. This proposal innovatively introduces a lumbar and hip thrust structure that significantly increases the thrust height while simultaneously increasing the frequency of thrust and retraction. This greatly enhances the user experience of the massage chair, and combined with the compression of the calf muscles by inflated calf airbags, achieves a more powerful lumbar and hip stretching effect. Summary of the Invention

[0008] In view of the above practical problems and the shortcomings of the existing technology, the main technical problem to be solved by the present invention is to provide a waist and hip stretching structure and massage chair, which can greatly increase the height of waist and hip extension, and at the same time increase the frequency of waist and hip extension and retraction, so as to achieve a stronger waist and hip stretching effect.

[0009] To solve the above-mentioned technical problems, this application provides a lumbar and hip-stretching structure and a massage chair, adopting the following technical solution:

[0010] A lumbar and hip support structure includes a lumbar support push rod, a push rod connecting assembly, and two lumbar support components; the two lumbar support components are symmetrically arranged on both sides of the backrest frame of a massage chair, and the lumbar support components do not interfere with the L-shaped guide rail of the backrest frame.

[0011] The lumbar support component includes a seat plate and a crank-slide mechanism. The seat plate is located on the backrest frame at the waist and hip position of the human body. The crank-slide mechanism includes cranks, connecting rods, and slide rods connected in pairs. The seat plate is mounted on the slide rods. The cranks are hinged to the bottom of the backrest frame to form a fulcrum.

[0012] The two ends of the push rod connecting assembly are respectively connected to the corresponding cranks on both sides; the top push rod provides power through the push rod connecting assembly to make the two cranks rotate around their respective fulcrums, and the cranks rotate to make the connecting rod reversing member so that the slide rod produces a back-and-forth linear motion;

[0013] The crank sliding mechanism also includes a vertically arranged straight guide rail, the slide rod is slidably connected to the straight guide rail, and the slide rod moves back and forth in a straight line in the vertical direction within the straight guide rail; the linear movement of the slide rod of the crank sliding mechanism causes the seat plate to push out or retract relative to the backrest frame.

[0014] In a preferred embodiment, the lumbar support rod is fixed to one side of the backrest frame, and the output end of the lumbar support rod is connected and disposed at a first end position near the rod connecting assembly;

[0015] The top waist push rod is connected to the two cranks through the push rod connecting assembly, so that the two cranks are linked to make the two top waist members move synchronously.

[0016] In a preferred embodiment, the push rod connecting assembly is a concave structure, the concave middle section of the push rod connecting assembly is arranged at the bottom of the backrest frame, and the two ends of the push rod connecting assembly are hingedly connected to the corresponding two cranks.

[0017] The top waist push rod is extended or retracted, the push rod connecting assembly is driven to rotate around the fulcrum to push the top waist member to rise or pull the top waist member to fall.

[0018] In a preferred embodiment, the middle section of the crank is fixed to the backrest frame through a support rod, and the support rod fixing point forms the fulcrum.

[0019] In a preferred embodiment, the top waist push rod is fixed to the ear seat on one side of the backrest frame.

[0020] The crank includes a concave arc section at the end connected to the connecting rod reversing piece.

[0021] In a preferred embodiment, when the push rod connecting assembly is connected to the backrest frame, the push rod connecting assembly has a space for the back cover and the built-in core of the backrest frame in the up-down direction.

[0022] In a preferred embodiment, the lower end of the slide rod is sleeved with a nylon plastic sleeve, and the upper end of the straight guide rail is sleeved with a nylon plastic sleeve.

[0023] The slide rod is smeared with lubricating oil.

[0024] In a preferred embodiment, the seat plate is hingedly connected to the upper end of the slide rod, and the seat plate is freely swingable within a certain angle relative to the slide rod.

[0025] In a preferred embodiment, the seat plate is provided with a certain curvature at the waist-relying part.

[0026] A massage chair comprising the top waist and hip muscle stretching structure according to any one of the above.

[0027] In summary, the present application has the following advantages:

[0028] 1. The top waist and hip muscle stretching structure can greatly increase the height of the waist and hip stretching, improve the frequency of the waist and hip stretching and retraction, and greatly improve the user's body feeling when using the massage chair. In combination with the calf air bag, the calf is clamped to achieve a stronger waist and hip muscle stretching effect.

[0029] 2. The top waist push rod provides power, drives the crank around a fulcrum, swings the other end of the crank to produce torsion, drives the connecting rod reversing piece through the torsion, makes the slide rod produce linear motion back and forth, and uses the linear motion to eject the seat plate, and realizes the ejection of the waist and hips by ejecting the seat plate.

[0030] 3. The seat plate and the slide rod are connected by hinge, when the human body sits on the seat plate, it can swing freely within a certain angle, so that people of different body types can achieve the effect of automatic adjustment of the center of gravity.

[0031] 4. The waist and hip ejection structure and the movement core have enough space, the movement core can move to the front end of the L-shaped guide rail seat, without affecting the movement stroke of the movement core. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structure diagram of the existing product top waist mode 1;

[0033] Figure 2 is a structure diagram of the existing product top waist mode 2;

[0034] Figure 3 is a structure diagram of the existing product top waist mode 2;

[0035] Figure 4 is a whole structure diagram of the top waist mechanism of the embodiment;

[0036] Figure 5 is an angle adjustment explosion diagram of the seat plate of the embodiment;

[0037] Figure 6 is a starting use state diagram of the massage chair of the embodiment;

[0038] Figure 7 is a top waist ejection state diagram of the massage chair of the embodiment;

[0039] Figure 8 is a top waist seat plate reset state diagram of the massage chair of the embodiment;

[0040] Figure 9 is a force analysis diagram of the top waist hip muscle structure of the embodiment;

[0041] Figure 10 is a position relationship diagram of the top waist ejection and the initial state of the massage chair of the embodiment;

[0042] Figure 11 is a top view of the massage chair of the embodiment;

[0043] Figure 12 is a side view of the massage chair of the embodiment.

[0044] Explanation of reference signs: 1, back frame; 2, top waist push rod; 3, push rod connecting assembly; 31, concave middle section; 32, first end position; 33, second end position; 4, crank; 41, fulcrum; 5, connecting rod reversing piece; 6, straight guide rail; 7, sliding rod; 8, bolt; 9, seat plate limiting plate; 10, seat plate; 11, rear cover lower; 12, front backrest; 13, core. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can be detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0048] The following will be described in detail with reference to the drawings Figure 4 The present application is further described in detail.

[0049] The present application discloses a top waist hip tensioning structure, which is mainly applied to a massage chair. The top waist hip tensioning structure comprises a top waist push rod 2, a push rod connecting assembly 3 and two top waist members. The two top waist members are symmetrically arranged on both sides of a back frame 1 of the massage chair, and the top waist members and the L-shaped guide rails of the back frame 1 do not interfere with each other.

[0050] The top waist member comprises a seat plate 10 and a crank sliding rod mechanism, the crank sliding rod mechanism comprises two pairs of connected cranks 4, connecting rod reversing elements 5, sliding rods 7 and straight guide rails 6, the seat plate 10 is arranged at the position corresponding to the waist and hips of the human body of the backrest frame 1; the seat plate 10 is hinged at the upper end of the sliding rod 7, and the seat plate 10 is freely swingable within a certain angle relative to the sliding rod 7. The sliding rod 7 is slidingly connected with the straight guide rail 6 and can move linearly back and forth in the straight guide rail 6 to act on the seat plate 10 to push out or retract relative to the backrest frame 1; the top waist push rod 2 is fixed on one side of the backrest frame 1, and the top waist push rod 2 drives the linear motion of the sliding rod 7 through the crank 4.

[0051] Wherein, the crank 4 and the top waist push rod 2 are connected through the push rod connecting assembly 3. The two ends of the push rod connecting assembly 3 are connected with the cranks 4 respectively; the top waist push rod 2 is fixed on one side of the backrest frame 1, and the output end of the top waist push rod 2 is fixed on the corresponding end of the push rod connecting assembly 3, the top waist push rod 2 drives the cranks 4 on both sides through the push rod connecting assembly 3 to realize the synchronous motion of the top waist members on both sides.

[0052] Specifically, the two ends of the push rod connecting assembly 3 are connected with the cranks 4, wherein the top waist push rod 2 acts on the position close to the middle of the push rod connecting assembly 3, and since the top waist push rod is arranged on one side of the backrest frame 1, the corresponding push rod connecting assembly comprises a first end position 32 and a second end position 33 connected with the cranks 4, and the top waist push rod 2 is arranged close to the first end position 32 of the push rod connecting assembly 3.

[0053] Further, the push rod connecting assembly 3 is a concave structure, the concave middle segment 31 in the push rod connecting assembly 3 is arranged at the bottom of the backrest frame 1; the two ends of the push rod connecting assembly 3 are hingedly connected with the corresponding cranks 4 on both sides, the top waist push rod is elongated or retracted, which drives the push rod connecting assembly to pull the cranks to push the top waist member upward or pull the top waist member downward with the fulcrum as the rotation center.

[0054] When the push rod 2 presses down or pulls up the push rod connecting assembly 3, the hinge end of the push rod connecting assembly 3 and the crank 4 drives the crank 4 to rotate around the fulcrum 41 of the crank. The concave middle section 31 of the push rod connecting assembly 3 swings within a certain angle around the hinge end of the push rod connecting assembly 3 and the crank 4. That is, when the push rod component rises, the concave middle section 31 of the push rod connecting assembly 3 swings upward to a certain height; when the push rod component falls, the concave middle section 31 of the push rod connecting assembly 3 swings downward to a certain low degree. The concave middle section 31 of the push rod connecting assembly 3 mainly serves to provide clearance. During the pressing or pulling motion of the push rod 2, the concave middle section 31 provides sufficient clearance in the vertical direction, allowing the massage chair's mechanism 13 to reach the front end of the L-shaped guide rail during operation without affecting the normal massage function of the massage chair.

[0055] The crank 4 is hinged to the bottom of the backrest frame 1 to form a fulcrum 41. Specifically, the middle section of the crank 4 is fixed to the backrest frame 1 by a support rod, and the fulcrum 41 is formed by the fixed point of the support rod. The push rod 2 presses down or pulls up the crank 4 through the push rod connecting assembly 3. The crank 4 generates torque by rotating around its fulcrum 41 at the end connected to the connecting rod reversing member 5. The torque pushes the connecting rod reversing member 5 upward or downward to achieve the ejection movement of the seat plate 10.

[0056] Specifically, the driving structure of the seat plate 10 is as follows: the push rod 2 provides power to rotate the crank 4 around its fulcrum 41, and the crank 4 rotates to act on the connecting rod reversing member 5 of the crank sliding mechanism, so that the slide rod 7 of the crank sliding mechanism produces a back-and-forth linear motion; the linear motion of the slide rod 7 of the crank sliding mechanism causes the seat plate 10 to push out or retract relative to the backrest frame 1.

[0057] In this embodiment, the installation relationship of the waist and hip traction structure is as follows:

[0058] like Figure 4 As shown, the upper end (starting end) of the top waist push rod 2 is fixed to the side ear seat of the backrest frame 1 (L-shaped guide rail) by a pin, and the push rod connecting assembly 3 is connected to the lower end (end end) of the top waist push rod 2 by a pin, that is, the telescopic end (output end) of the top waist push rod 2.

[0059] The crank 4 start end connects the push rod connecting assembly 3, the middle section is fixed by pin shaft connection in the backrest frame 1 (L-shaped guide rail) and forms the fulcrum 41, the backrest frame 1 (L-shaped guide rail) includes a support rod, the crank 4 end is hinged with one end of the connecting rod reversing piece 5, the other end of the connecting rod reversing piece 5 is hinged with the slide bar 7, the lower end of the slide bar 7 is sleeved with a nylon plastic sleeve. The upper end of the straight guide rail 6 is sleeved with a nylon plastic sleeve, the slide bar 7 is smeared with lubricating oil, and can be freely slid on the straight guide rail 6 with low friction.

[0060] As shown in Figure 5 , the bottom of the seat plate 10 is provided with a seat plate limiting plate 9, the upper end of the slide bar 7 and the lower end of the seat plate limiting plate 9 are made of round holes, and the bolt 8 is sequentially inserted through the slide bar 7 and the seat plate limiting plate 9 to form a hinge. The lower end of the seat plate limiting plate 9 is sharp, which is installed in the slide bar 7 through the bolt 8, and the seat plate 10 swings within a certain angle under the gravity of the human body, which plays a role in automatically adjusting the center of gravity of the human body.

[0061] As shown in Figure 11 , the crank 4 and the connecting rod reversing piece 5 are installed outside the L-shaped guide rail of the backrest frame 1 (L-shaped guide rail), and the end of the crank 4 for connecting with the connecting rod reversing piece 5 includes a concave arc curve section, which does not affect the running stroke of the movement 13; as shown in Figure 12 , the push rod connecting assembly 3, the rear cover 11 and the movement 13 have enough space in the up-down direction, so that the movement 13 can run to the front end of the L-shaped guide rail.

[0062] As shown in Figure 12 , further, the width size D3 of the front end of the front backrest 12, the top waist push rod 2 is installed at the front end of the L-shaped guide rail of the backrest frame 1 (L-shaped guide rail), the distance between the rear end of the top waist push rod 2 and the front end of the front backrest 12 is D4, D3≈D4, and the influence on the running stroke of the movement 13 can be ignored.

[0063] In the embodiment, the use method of the top waist hip pull structure is as follows:

[0064] 1, turn on the power switch of the massager, press the zero gravity button. As shown in Figure 6 , turn back to the maximum angle, lift the calf to the maximum angle;

[0065] 2, press the top waist button to start the top waist program;

[0066] 3, the calf air bag starts to inflate until it clamps the human calf;

[0067] 4, as shown in Figure 7 , the calf descends, and the top waist push rod 2 is ejected, and the human hip is lifted up through the seat plate 10;

[0068] 5, as shown in Figure 8As shown, the waist push rod 2 retracts and resets, and the human buttocks descend by their own weight;

[0069] 6. Continue the upward and downward motion of the push bar 2 to achieve the effect of stretching the waist and hip muscles.

[0070] 7. Deflat the calf sac and raise the calf, completing one full cycle of the waist-lifting movement.

[0071] Mechanism of action:

[0072] like Figure 9 As shown, a crank-slider mechanism is constructed from the backrest frame 1 (L-shaped guide rail), the top waist push rod 2, and the front end of the crank 4. When the top waist push rod 2 is energized, it generates a thrust F1. The thrust F1 acts on the front end of the crank 4 to generate a vertical component force F2, causing the crank 4 to rotate around the fulcrum 41.

[0073] The rear end of crank 4, connecting rod reversing member 5 and slide rod 7 constitute a crank-slide mechanism. The connecting rod rotates around the fulcrum 41, generating a vertical force F3 at the rear end. F3 acts on the connecting rod reversing member 5 to generate a component force F4. F4 acts on the slide rod 7 to generate a component force F5. Under the action of F5, the slide rod 7 moves within the straight guide rail 6.

[0074] The ejection process of seat plate 10, such as Figure 10 As shown. When the top waist push rod 2 is in its initial position, the corresponding seat plate 10 is in position D1. When the top waist push rod 2 is energized and extends to its longest position, the corresponding seat plate 10 is in position D2, at which time the seat plate 10 generates an extension distance D = D2 - D1. Similarly, when the top waist push rod 2 is energized and retracts to its shortest position, the seat plate 10 moves from position D2 to position D1, and the seat plate 10 resets.

[0075] In this embodiment, an innovative waist and hip thrust structure is implemented to increase the thrust height and frequency of the waist and hip thrust and retraction. Combined with the clamping effect of the calf airbags on the calves, this achieves a stronger waist and hip stretching effect, providing the user with a more tactile experience. Simultaneously, sufficient clearance is provided between the waist and hip thrust structure and the mechanism 13, allowing the mechanism 13 to extend to the front of the L-shaped guide rail seat. This allows the user to experience both waist and hip stretching while simultaneously enjoying the massage from the mechanism 13 at the seat position.

[0076] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A top waist hip pull tendon structure, characterized in that: The top waist pushing rod, the pushing rod connecting assembly and the two top waist components; the two top waist components are symmetrically arranged on the two sides of the backrest frame of the massage chair, and the top waist component and the L-shaped guide rail of the backrest frame do not interfere with each other; The top waist component comprises a seat plate and a crank sliding rod mechanism, the seat plate is arranged at the position corresponding to the waist and hip of the human body on the backrest frame; the crank sliding rod mechanism comprises two cranks, a connecting rod reversing element and a sliding rod connected with each other, the seat plate is installed on the sliding rod, and the crank is hinged with the bottom of the backrest frame to form a fulcrum; The pushing rod connecting assembly is a concave structure, the middle section of the pushing rod connecting assembly is arranged in the bottom of the backrest frame; the two ends of the pushing rod connecting assembly are connected with the corresponding cranks on the two sides respectively; the top waist pushing rod provides power to the two cranks through the pushing rod connecting assembly to rotate around the respective fulcrums, the crank rotates the connecting rod reversing element to make the sliding rod produce linear motion back and forth; The crank sliding rod mechanism further comprises a vertical straight guide rail, the sliding rod is slidingly connected with the straight guide rail, and the sliding rod moves linearly back and forth in the vertical direction in the straight guide rail; the linear motion of the sliding rod acts on the seat plate to push out or retract the seat plate relative to the backrest frame; The top waist pushing rod is fixed on one side of the backrest frame, the rear end of the crank, the connecting rod reversing element and the sliding rod constitute a crank sliding rod mechanism, and the backrest frame, the top waist pushing rod and the front end of the crank constitute another crank sliding rod mechanism.

2. A top waist hip pull structure according to claim 1, wherein: The output end of the top waist pushing rod is connected to the first end position close to the pushing rod connecting assembly; The top waist pushing rod drives the two cranks on the two sides through the pushing rod connecting assembly to make the two top waist components move synchronously.

3. A top waist hip pull structure according to claim 2, wherein: The two ends of the pushing rod connecting assembly are hinged with the corresponding cranks on the two sides; The top waist pushing rod is elongated or retracted, drives the pushing rod connecting assembly to pull the crank to push the top waist component upward or pull the top waist component downward with the fulcrum as the rotation center.

4. A top waist hip pull structure according to claim 3, wherein: The middle section of the crank is fixed to the backrest frame through a support rod, and the support rod fixing point forms the fulcrum.

5. A top waist hip pull structure according to claim 4, wherein: The top waist pushing rod is fixed to the ear seat on one side of the backrest frame; The end of the crank for connecting with the connecting rod reversing element comprises an inner concave arc curve section.

6. A top waist hip pull structure according to claim 3, wherein: When the pushing rod connecting assembly is connected with the backrest frame, the pushing rod connecting assembly and the back cover of the backrest frame and the built-in core have a space in the up-down direction.

7. A top waist hip pull structure according to claim 1, wherein: The lower end of the sliding rod is sleeved with a nylon plastic sleeve, and the upper end of the straight guide rail is sleeved with a nylon plastic sleeve. The sliding rod is smeared with lubricating oil.

8. A top waist hip pull structure according to claim 1, wherein: The seat plate is hinged to the upper end of the sliding rod, and the seat plate freely swings within a certain angle relative to the sliding rod.

9. A top waist hip pull structure according to claim 8, wherein: The seat plate is provided with a certain curvature at the waist part.

10. A massage chair, characterized by: The massage chair comprises the top waist and hip tensioning structure according to any one of claims 1-9.

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