Negative-angle back-reversing small-pulling lacing wire mechanism

By using a negative angle backrest stretching mechanism, combined with the coordinated movement of the seat and leg components and an airbag structure, the problem of limited range of motion in existing massage chairs is solved, achieving full stretching and relaxation of the body and improving the massage effect.

CN223715992UActive Publication Date: 2025-12-26ZHEJIANG ANNMA SCIENCE&TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422939313.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-12-26
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Existing massage chair stretching mechanisms have limited range of motion, resulting in small movements that are difficult to effectively change the user's posture, and the leg muscles cannot be fully stretched, thus lacking actual stretching effect.

Method used

A negative angle inverted back stretching mechanism is designed. Through the coordinated movement of the base component, seat component and leg component, an inverted V-shaped body position is achieved. Combined with the inflation or deflation of the airbag structure, a massage effect of raising or pressing the legs is achieved, thus achieving full stretching.

Benefits of technology

It allows the user's body to be fully stretched, achieving a complete relaxation effect, enhancing the stretching effect of the massage chair, and increasing the user's comfort and health benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a negative angle back-falling small stretching lacing wire mechanism which comprises a base assembly, a seat assembly and a leg assembly, the seat assembly rotates anticlockwise on the base assembly to achieve back-falling action, and the back-falling angle is set to be a negative angle and even reach more than minus 10 degrees, so that the back-falling effect is obvious; then the leg component rotates anticlockwise and clockwise relative to the base component, so that leg lifting and leg retracting actions are completed; moreover, the legs of the user are inflated or deflated through the independent working mode of the air bag structure of the structural leg assembly, the massage effect of lifting or pressing the legs is achieved, and finally the tendon stretching effect is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an electric massage chair, in particular to a negative angle back-to-back small pull muscle mechanism. BACKGROUND

[0002] Massage chair is to use mechanical rolling force and mechanical force to press to massage, artificial massage can dredge meridians, make blood circulation, keep the balance of yin and yang of organism, so, after massage, can make blood circulation unobstructed, improve lumbago and backache and prevent disease, make muscle relax, joint flexible, inspire people's spirit, improve sleep quality, relieve whole body fatigue, have important role to guarantee health, and the massage of massage chair can also have this effect.

[0003] Stretching exercise is a simple and easy health care exercise, and there are many stretching actions in yoga, and stretching is beneficial to health in leisure time. With the large popularity of massage chairs, stretching can no longer be stretched and relaxed by the user himself, and the user can directly lie on the massage chair, and the structure of the massage chair is changed, so that the body position of the user is changed, and the stretching effect is realized. The existing massage chairs are various and complex in structure, and not only can the head, shoulders, waist and legs of the human body be electrically massaged, but also the waist and legs of the human body can be stretched.

[0004] However, the stretching mechanism of the existing massage chair is limited by the movement stroke structure, so that the action amplitude of the massage chair is small, the body state of the user cannot be changed greatly, and the user can only be adjusted to a comfortable position for stretching, the user only has a comfortable feeling, and the actual stretching effect is not achieved, and the leg muscle of the user cannot be fully stretched, and the body cannot be fully relaxed after stretching.

[0005] The utility model aims at providing a negative angle back-to-back small pull muscle mechanism, which can adjust the body of the user into a stretched inverted V shape, so as to achieve the effect of full stretching. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of negative angle back-to-back small pull muscle mechanism, and the above-mentioned problems can be effectively solved.

[0007] The utility model is realized as follows:

[0008] A kind of negative angle back-to-back small pull muscle mechanism, comprising:

[0009] Base assembly, the base assembly includes support frame and drive structure, the drive structure is located in the inner side of the support frame;

[0010] The seat assembly comprises a movable frame arranged above the support frame, guide rails arranged on both sides of the movable frame, and a seat body arranged between the two guide rails, the movable frame is movably connected with the support frame, and the seat body and the guide rails are arranged above the movable frame and move with the movable frame.

[0011] The leg assembly comprises a cavity accommodating a leg and an air bag structure arranged inside the cavity, and the leg assembly is movably connected to the front end of the support frame.

[0012] As a further improvement, the support frame has a stepped structure in the cross-sectional direction, the front end of the support frame is higher than the rear end of the support frame, and two connecting plates are arranged on both sides of the upper front end of the support frame, the leg assembly is movably connected with the connecting plates, and two rollers are arranged on both sides of the lower rear end of the support frame.

[0013] As a further improvement, the seat assembly further comprises two side plate structures, the two side plate structures are arranged on the sides away from the two guide rails, the side plate structures are inserted with the guide rails, and the side plate structure close to the leg assembly is provided with a movable slot, two guide rods are inserted with the outer sides of the support frame, and the guide rods are movable in the movable slot.

[0014] As a further improvement, the track of the movable slot has an arc shape, and a positioning slot is arranged in the middle of the arc shape.

[0015] As a further improvement, a connecting rod is arranged inside the support frame, one end of the driving structure is connected with the connecting rod, and the other end is connected with the movable frame, a rotating position is arranged on the upper middle segment of the support frame, the connecting arm of the movable frame is connected with the support frame at the rotating position, and the driving structure drives the movable frame to move around the rotating position.

[0016] As a further improvement, frame rods are arranged on both sides of the movable frame, the frame rods have the same shape as the guide rails, pass through the guide rails and support the guide rails.

[0017] As a further improvement, a front baffle is arranged on the side surface of the front end of the support frame, and the front baffle is arranged in a spaced manner with the leg assembly.

[0018] As a further improvement, a connecting frame is arranged on the side close to the support frame of the cavity, the connecting frame is rotatably arranged on the connecting plate to drive the leg assembly to move relative to the support frame.

[0019] As a further improvement, the included angle between the back surface of the seat assembly after rotation and the back surface of the leg assembly is greater than or equal to 90°.

[0020] The utility model discloses the beneficial effect is: the seat subassembly is made counterclockwise rotation on the base subassembly to realize the action of back leaning, and the back leaning angle is set to negative angle, even reaches negative 10 DEG above, thereby make back leaning effect obvious, through the counterclockwise rotation and clockwise rotation of leg subassembly relative to base subassembly, thereby complete the action of lifting leg and collecting leg, and, the independent working mode of the airbag structure of structural leg subassembly, the inflation or deflation action of user's leg, reach the massage effect of lifting leg or pressing leg, finally reach the effect of pulling the sinew. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0022] Figure 1 It is the structure schematic diagram of a negative angle back leaning small pull muscle mechanism of the utility model.

[0023] Figure 2 It is the initial position state diagram of a negative angle back leaning small pull muscle mechanism of the utility model.

[0024] Figure 3 It is the state diagram of back leaning to the bottom of a negative angle back leaning small pull muscle mechanism of the utility model.

[0025] Figure 4 It is the state diagram of back leaning and lifting leg of a negative angle back leaning small pull muscle mechanism of the utility model.

[0026] Figure 5 It is the state diagram of back leaning and collecting leg of a negative angle back leaning small pull muscle mechanism of the utility model.

[0027] In the drawing:

[0028] 1, base subassembly, 11, support frame, 111, connecting sheet, 112, gyro wheel, 113, guide rod, 114, connecting rod, 115, rotation position, 116, front baffle, 12, drive structure,

[0029] 2, seat subassembly, 21, movable frame, 211, connecting arm, 212, frame rod, 22, guide rail, 23, side plate structure, 231, movable slot, 232, positioning slot,

[0030] 3, leg subassembly, 31, chamber, 32, connecting frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0033] Referring to Figures 1-5 As shown in FIG. 1, a negative angle reverse back small pull strip mechanism comprises a base assembly 1, a seat assembly 2 and a leg assembly 3 arranged on the base assembly 1, the seat assembly 2 is arranged on and covers the base assembly 1, and the leg assembly 3 is movably arranged at the front end of the base assembly 1.

[0034] The base assembly 1 comprises a support frame 11 and a driving structure 12, the support frame 11 has a stepped structure in the cross-sectional direction, the front end of the support frame 11 is higher than the rear end of the support frame 11, two connecting pieces 111 are arranged at the upper front end of the support frame 11, the leg assembly 3 is movably connected with the two connecting pieces 111, when the angle of the leg assembly 3 is to be adjusted, the rotating shaft on the leg assembly 3 is rotated in the hole of the connecting piece 111, so that the angle of the leg assembly 3 is adjusted. Two rollers 112 are arranged at the lower rear end of the support frame 11, when the mechanism of the present application is to be moved, the front end of the base assembly 1 is lifted, and the mechanism of the present application is moved through the rollers 112.

[0035] The support frame 11 is internally provided with a connecting rod 114, one end of the driving structure 12 is connected to the connecting rod 114, and the other end is connected to the movable frame 21 of the seat assembly 2, so that the driving structure 12 is fixed to the inside of the support frame 11.

[0036] Referring to Figure 1 As shown, the seat assembly 2 includes the movable frame 21, guide rails 22 arranged on both sides of the movable frame 21, a seat body (not shown) arranged between the two guide rails 22, and two side plate structures 23 arranged on the sides away from each other of the two guide rails 22. The movable frame 21 is arranged above the support frame 11 and is movably connected to the support frame 11. The seat body and the guide rails 22 are arranged above the movable frame 21 and move with the movable frame 21. The insertion columns on the guide rails 22 are inserted into the insertion holes of the side plate structures 23, so that the guide rails 22 and the side plate structures 23 are connected. The movable frame 21 is provided with frame rods 212 on both sides, respectively. The frame rods 212 have the same shape as the guide rails 22. The frame rods 212 pass through the guide rails 22 and support the guide rails 22.

[0037] Specifically, the upper middle part of the support frame 11 is provided with a rotating position 115. The connecting arms 211 of the movable frame 21 are connected to the rotating position 115 of the support frame 11. The driving structure 12 drives the movable frame 21 to move around the rotating position 115. In addition, the side plate structure 23 is provided with a movable slot 231 near one side of the leg assembly 3. The track of the movable slot 231 is in an arc shape, and a positioning slot 232 is arranged in the middle of the arc shape. A guide rod 113 is inserted into each outer side of the support frame 11. The guide rod 113 can move in the movable slot 231 and can be positioned in the positioning slot 232, so that the seat body stops moving and is fixed to the base assembly 1. When the seat assembly 2 and the base assembly 1 rotate, the driving structure 12 drives the movable frame 21 to rotate around the rotating position 115. The guide rod 113 moves in the movable slot 231 at the same time. When the guide rod 113 moves to the positioning slot 232, the guide rod 113 is sunk into the positioning slot 232, so that no movement is generated between the base assembly 1 and the side plate structure 23.

[0038] The front end side of the support frame 11 is provided with a front baffle 116 which is spaced apart from the leg assembly 3. The leg assembly 3 comprises a cavity 31 for accommodating legs, and a gas bag structure (not shown) arranged inside the cavity 31. The cavity 31 is provided with a connecting frame 32 on the side close to the support frame 11. The connecting frame 32 is rotatably arranged on the connecting sheet 111, so that the leg assembly 3 is movably connected to the front end of the support frame 11, and ensures that the leg assembly 3 is driven to move relative to the support frame 11. The gas bag structure moves with the cavity 31 and the connecting frame 32, and protects and massages the legs of the user.

[0039] Referring to Figure 2 The driving structure 12 drives the movable frame 21 to move around the rotating position 115, the seat assembly 2 rotates counterclockwise, the guide rod 113 moves in the movable groove 231, and the seat assembly 2 performs a reclining action. Referring to Figure 3 When the seat assembly 2 rotates 90° and stops, that is, the reclining action of the seat assembly 2 is completed, the guide rod 113 is positioned in the positioning groove 232 to be fixed, that is, the reclining angle of the rib mechanism is a negative angle, and can even reach more than -10°. When the seat assembly 2 performs a reclining action, the leg assembly 3 moves counterclockwise with the seat assembly 2, that is, the leg assembly 3 performs a leg lifting action, and the rib mechanism completes the reclining and leg lifting actions. Referring to Figure 4 When the seat assembly 2 rotates 90° and stops, that is, the reclining action of the seat assembly 2 is completed, the guide rod 113 is positioned in the positioning groove 232 to be fixed, that is, the reclining angle of the rib mechanism is a negative angle, and can even reach more than -10°. When the seat assembly 2 performs a reclining action, the leg assembly 3 moves counterclockwise with the seat assembly 2, that is, the leg assembly 3 performs a leg lifting action, and the rib mechanism completes the reclining and leg lifting actions. Referring to Figure 5 The seat assembly 2 is kept, and the leg assembly 3 rotates clockwise, so that the rotating angle of the seat assembly 2 and the leg assembly 3 relative to the initial position is greater than 90°, and the rib mechanism completes the reclining and leg lifting actions. That is, the included angle between the back of the seat assembly 2 after rotation and the back of the leg assembly 3 is greater than or equal to 90°. The gas bag structure lifts the leg softly and works independently, and can adapt to the rib stretching purposes of different groups of people. To be precise, the rib mechanism is in a state of reclining to a negative angle under water through a large angle, the gas bag structure of the leg assembly 3 clamps the leg side of the user, and the other gas bag for lifting the leg acts through inflation or deflation, so as to achieve the massage effect of lifting or pressing the leg, and finally achieve the rib stretching effect.

[0040] The above only describes preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A negative angle reverse backslanting mini-strut mechanism, characterized in that, The utility model relates to a kind of chair, including: Base assembly (1), the base assembly (1) includes support frame (11), and drive structure (12) is arranged in the inside of support frame (11); Seat assembly (2), the seat assembly (2) includes movable frame (21) being arranged above support frame (11), guide rail (22) being arranged on both sides of movable frame (21), and chair body being arranged between two guide rail (22), movable frame (21) is movably connected with support frame (11), and chair body and guide rail (22) are arranged above movable frame (21) and move with movable frame (21); And Leg assembly (3), the leg assembly (3) includes cavity (31) containing leg, and air bag structure is arranged inside cavity (31), and leg assembly (3) is movably connected to the front end of support frame (11).

2. The negative-angle counterflyback whisker mechanism of claim 1, wherein The cross-sectional direction of the support frame (11) is in a stepped structure, and the front end of the support frame (11) is higher than the rear end of the support frame (11). Two sides of the front upper end of the support frame (11) are respectively provided with a connecting piece (111), and the leg assembly (3) is movably connected with the connecting piece (111). Two sides of the lower rear end of the support frame (11) are respectively provided with a roller (112).

3. The negative-angle counterflyback whisker mechanism of claim 1, wherein, The seat assembly (2) further includes two side plate structures (23), and the two side plate structures (23) are respectively arranged on the side away from the two guide rails (22). The side plate structure (23) is inserted with the guide rail (22). The side plate structure (23) is provided with a movable slot (231) on the side close to the leg assembly (3). Two outer sides of the support frame (11) are respectively inserted with a guide rod (113), and the guide rod (113) is movable in the movable slot (231).

4. The negative-angle counterflyback whisker mechanism of claim 3, wherein, The track of the movable slot (231) is in an arc shape, and a positioning groove (232) is formed in the middle of the arc shape.

5. The negative-angle counterflyback whisker mechanism of claim 1, wherein, The support frame (11) is provided with a connecting rod (114) inside. One end of the drive structure (12) is connected to the connecting rod (114), and the other end is connected to the movable frame (21). A rotating position (115) is arranged on the upper middle segment of the support frame (11). The connecting arm (211) of the movable frame (21) is connected to the rotating position (115) of the support frame (11), and the drive structure (12) drives the movable frame (21) to move around the rotating position (115).

6. The negative-angle counterflyback whisker mechanism of claim 1, wherein, Two sides of the movable frame (21) are respectively provided with a frame rod (212), and the shape of the frame rod (212) is consistent with the shape of the guide rail (22), and the frame rod (212) passes through the guide rail (22) and supports the guide rail (22).

7. The negative-angle counterflyback whisker mechanism of claim 1, wherein A front baffle (116) is arranged on the front side of the support frame (11), and the front baffle (116) is arranged in a spaced manner with the leg assembly (3).

8. The negative-angle inverted-back mini-strut mechanism of claim 2, wherein, The chamber (31) is provided with a connecting frame (32) on one side of the support frame (11), the connecting frame (32) is rotatably arranged on the connecting plate (111) to drive the leg assembly (3) to produce relative movement with the support frame (11).

9. The negative-angle inverted-back fillet mechanism of any one of claims 1 to 8, wherein, The angle between the back of the seat assembly (2) after rotation and the back of the leg assembly (3) is greater than or equal to 90°.