Leaning tool and bearing structure

Abstract

The invention relates to the technical field of leaning tools, in particular to a leaning tool and a bearing structure. The leaning tool comprises a main body, the main body is provided with a containing cavity, the containing cavity is used for containing filler, the main body is used for being arranged on a bearing structure, and the main body is used for being arranged around the rear side, the left side and the right side of the waist of the human body at least. The leaning tool main body is arranged around the rear side, the left side and the right side of the waist of a human body to form a 360-degree surrounding structure. When a user sits down or lies, the weight of the body is not concentrated on a certain local area of the waist any more, but is uniformly dispersed on the whole leaning tool surrounding the waist. Different from a traditional back cushion which is only supported locally, the back cushion has the advantages that the back cushion can fit the curve of the waist due to all-directional fitting, so that the pressure is eliminated in a larger contact area, the single-point pressure on the lumbar intervertebral disc and the waist muscles is prevented from being too large, and the burden is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of fixtures, and particularly to a fixture and a bearing structure. Background Art

[0002] In modern life, when a user sits or reclines, the body weight is distributed on the waist, and the local area bears excessive pressure, increasing the burden on the lumbar intervertebral disc and lumbar muscles. The lumbar pain and injury caused by long-term sitting and long-term compression.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] Based on this, in view of the problem that the current cushion or lumbar pillow only has the function of padding and leaning, it is necessary to provide a fixture and a bearing structure.

[0005] In a first aspect, a fixture includes:

[0006] It includes a main body provided with a receiving cavity for setting a filler, the main body is used to be set on a bearing structure, and the main body is used to surround at least the rear side, left side and right side of the human waist.

[0007] In one embodiment, the main body is bendable and variable, or the main body is pre-bent and fixed.

[0008] In one embodiment, the main body includes a first pillow body, a second pillow body and a third pillow body connected to each other. The first pillow body, the second pillow body and the third pillow body together form the receiving cavity. The third pillow body extends along a first direction, and the first pillow body and the second pillow body are respectively arranged on both sides of the third pillow body along the first direction to form a support space for surrounding the waist. The first pillow body and the second pillow body both extend along a second direction, and the second direction intersects with the first direction.

[0009] In one embodiment, the first pillow body has a first pillow body arc surface on the side facing the support space along the first direction, and the central angle Y of the first pillow body arc surface 1 is: 30° ≤ Y 1 ≤ 180°;

[0010] And / or, the second pillow body has a second pillow body arc surface on the side facing the support space along the first direction, and the central angle Y of the second pillow body arc surface 2 is: 30° ≤ Y 2 ≤ 180°.

[0011] In one embodiment, one end of the first pillow body away from the third pillow body along the second direction has a first pillow body inclined surface, at least part of the first pillow body inclined surface is located outside the support space, and the side of the first pillow body inclined surface away from the third pillow body is inclined towards the inside of the first pillow body relative to the side of the first pillow body inclined surface close to the third pillow body; and / or,

[0012] One end of the second pillow body away from the third pillow body along the second direction has a second pillow body inclined surface, at least part of the second pillow body inclined surface is located outside the support space, and the side of the second pillow body inclined surface away from the third pillow body is inclined towards the inside of the second pillow body relative to the side of the second pillow body inclined surface close to the third pillow body.

[0013] In one embodiment, the third pillow body is bent or linearly arranged, and the trajectory of the third pillow body extending along the first direction is a curve or a straight line.

[0014] In one embodiment, both ends of the third pillow body along the first direction are inclined towards the first pillow body and the second pillow body respectively along the second direction relative to the middle of the third pillow body along the first direction.

[0015] In one embodiment, along the direction of the third pillow body pointing to the support space, the edge of the projection profile of the third pillow body has a first tangent line, and the edge of the projection profile of the first pillow body and / or the second pillow body has a second tangent line. The first tangent line and the second tangent line have a spacing F in the direction of the curve trajectory of the third pillow body extending towards its own center of the circle, satisfying: -150 mm ≤ F ≤ +150 mm;

[0016] And / or, along the direction of the third pillow body pointing to the support space, the edge of the projection profile of the third pillow body has a third tangent line, and the edge of the projection profile of the first pillow body and / or the second pillow body has a fourth tangent line. The third tangent line and the fourth tangent line have a spacing E in the secant direction of the line connecting the two ends of the curve trajectory of the third pillow body extending, satisfying: -150 mm ≤ E ≤ +150 mm.

[0017] In one embodiment, the first pillow body is convexly provided with a first close - fitting part towards the support space;

[0018] And / or, the second pillow body is convexly provided with a second close - fitting part towards the support space;

[0019] And / or, both ends of the third pillow body along the first direction are convexly provided with third close - fitting parts.

[0020] In one embodiment, the backrest further includes a first connecting member, which includes a first connecting portion and a second connecting portion. The first connecting portion is disposed on the first pillow body, and the second connecting portion is disposed on the second pillow body. The first connecting portion is used for detachably connecting to different positions of the second connecting portion to adjust the position of the first pillow body relative to the second pillow body.

[0021] In one embodiment, the backrest further includes a second connecting member, which is used for connecting the backrest to a bearing structure.

[0022] In one embodiment, the main body is recessed with a bayonet, which is used for clamping on the bearing structure. The second connecting member includes a first strap and a second strap. Both the first strap and the second strap are disposed on the main body, and the first strap and the second strap are used for connecting the main body to the bearing structure.

[0023] In one embodiment, the backrest further includes a framework and a vibrator. The framework is placed in the accommodating cavity and is used for supporting the filling material. The vibrator is disposed in the accommodating cavity and is connected to the framework.

[0024] In one embodiment, the vibrator includes a first outer shell, a first rotating motor and an eccentric wheel. The first outer shell is disposed on the framework. The first outer shell has a first accommodating cavity. Both the first rotating motor and the eccentric wheel are disposed in the accommodating cavity. The shaft hole of the eccentric wheel is connected to the first motor shaft of the first rotating motor. The first rotating motor is used for driving the eccentric wheel to rotate so that the eccentric wheel generates vibration.

[0025] In one embodiment, the backrest further includes an accommodating structure, which is disposed in the accommodating cavity. The accommodating structure is connected to the framework and is used for containing the vibrator.

[0026] In one embodiment, the backrest further includes a massager, which is disposed in the accommodating cavity and is connected to the framework. The massager is spaced apart from the vibrator.

[0027] In one embodiment, the massager includes a second housing, and a second rotating motor, a rocker arm, an elastic member, an extension frame, a shaft pin, and a spherical roller disposed in a second accommodation cavity of the second housing. The second housing is connected to the skeleton, and the second housing is provided with an opening communicating with the second accommodation cavity. The rocker arm is provided with an outer shaft hole along a third direction, and the rocker arm is provided with an inner shaft hole along a fourth direction. The third direction intersects with the fourth direction. The extension frame includes an extension shaft and a bracket connected to each other. The elastic member is disposed in the inner shaft hole. One end of the elastic member is connected to the hole wall of the inner shaft hole, and the other end is connected to the extension shaft. The extension shaft passes through the inner shaft hole and is slidably connected to the inner shaft hole. The bracket is provided with a bracket shaft hole therethrough. The spherical roller is provided with a roller shaft hole. The shaft pin passes through the roller shaft hole and the bracket shaft hole to rotatably connect the spherical roller to the bracket. The second motor shaft of the second rotating motor is fixedly disposed in the outer shaft hole. The second rotating motor is configured to drive the rocker arm to rotate, so that the extension frame expands and contracts relative to the opening along the fourth direction under the action of the elastic member.

[0028] In one embodiment, the skeleton includes a first support rod, a second support rod, and a third support rod connected to each other. The third support rod extends along the first direction. The first support rod and the second support rod are respectively disposed on two sides of the third support rod along the first direction. The first support rod and the second support rod both extend along the second direction. The first support rod is disposed in the first pillow body, the second support rod is disposed in the second pillow body, and the third support rod is disposed in the third pillow body. The vibrator is disposed on at least one of the first support rod, the second support rod, and the third support rod.

[0029] In one embodiment, both the main body and the skeleton are arranged in a curved shape or a straight shape, and the extension trajectory of the skeleton matches the extension trajectory of the main body.

[0030] In one embodiment, third close parts are protruded at both ends of the main body along the first direction.

[0031] In one embodiment, the backrest further includes a third connecting member. The third connecting member includes a third connecting portion and a fourth connecting portion. The third connecting portion is disposed at one end of the main body along the first direction, and the fourth connecting portion is disposed at the other end of the main body along the first direction. The third connecting portion is configured to be detachably connected to the fourth connecting portion.

[0032] In one embodiment, the backrest also includes a power supply assembly, which includes a battery holder, a battery, a power cord and a connector. The battery holder is recessed on the main body, and the battery is disposed in the battery holder. One end of the power cord is electrically connected to the vibrator, and the other end of the power cord is electrically connected to the connector. The connector is used to be inserted into a socket of the battery, and a power switch is provided on the battery.

[0033] A second aspect provides a bearing structure, comprising the support as described in the first aspect.

[0034] The above-mentioned support body is arranged along the back, left and right sides of the human waist to form a 360-degree embracing structure. When the user sits down or lies down, the body weight is no longer concentrated on a certain local area of ​​the waist, but is evenly distributed on the entire support surrounding the waist. Unlike the traditional cushion that only supports part of the body, the all-round fit can fit the waist curve, allowing the pressure to be eliminated on a larger contact area, avoiding excessive pressure on the lumbar intervertebral disc and waist muscles at a single point, and reducing their burden. The wrap-around design can accurately match the natural physiological curvature of the human waist, including the lumbar lordosis and sacral kyphosis. Stable support helps to maintain the normal "S" shape of the spine, prevent the spine from deforming due to lack of effective support, and continuously create a suitable mechanical environment for the waist during long-term sitting, reducing waist pain and injury caused by abnormal spinal morphology. The filler set in the accommodating cavity further enhances the cushioning performance of the support. The filler can dynamically deform according to the pressure of the human body. When the weight of the body is applied, the filler will compress and rebound appropriately to absorb the impact force and relieve the accumulated pressure damage during long-term sitting. The design of the support tightly around the waist also limits unnecessary shaking of the waist. When a person twists or turns sideways while sitting, it is easy to cause uneven force on the waist. The support can stabilize the waist, reduce the extra pressure caused by shaking, and keep the force on the waist in a relatively stable and balanced state. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application, and ordinary technicians in this field can obtain other drawings based on the disclosed drawings without paying any creative work.

[0036] Figure 1 This is a schematic structural diagram of the first type of support provided in an embodiment of the present application.

[0037] Figure 2 A schematic diagram of the structure of a vibrator provided in an embodiment of the present application.

[0038] Figure 3 Schematic diagram of the first backrest provided by the embodiment of the present application worn on the human waist.

[0039] Figure 4 Schematic diagram of the second backrest provided by the embodiment of the present application arranged on the bearing structure.

[0040] Figure 5 Schematic diagram of a structure of the second backrest provided by the embodiment of the present application.

[0041] Figure 6 Explosion schematic diagram of the second backrest provided by the embodiment of the present application.

[0042] Figure 7 Front view of the second backrest provided by the embodiment of the present application.

[0043] Figure 8 Side view of the second backrest provided by the embodiment of the present application.

[0044] Figure 9 Top view of the second backrest provided by the embodiment of the present application.

[0045] Figure 10 Schematic diagram of the structure of the first fixing sleeve or the second fixing sleeve of the first connecting member provided by the embodiment of the present application.

[0046] Figure 11 Schematic diagram of the tension belt of the first connecting member provided by the embodiment of the present application.

[0047] Figure 12 Schematic diagram of the structure of the second connecting member provided by the embodiment of the present application.

[0048] Figure 13 Schematic diagram of the structure of the framework of the second backrest provided by the embodiment of the present application.

[0049] Figure 14 Schematic diagram of the structure of the framework, vibrator and massager of the second backrest provided by the embodiment of the present application.

[0050] Figure 15 Explosion schematic diagram of the massager provided by the embodiment of the present application.

[0051] Figure 16 Overall structure schematic diagram of the second backrest provided by the embodiment of the present application.

[0052] Figure 17 Another schematic diagram of the structure of the second backrest provided by the embodiment of the present application.

[0053] Figure 18 Another side view of the second backrest provided by the embodiment of the present application.

[0054] Figure 19 Another front view of the second fixture provided by the embodiment of the present application.

[0055] Figure 20 Another structural schematic diagram of the second fixture provided by the embodiment of the present application.

[0056] Figure 21 Structural schematic diagram of the third fixture provided by the embodiment of the present application.

[0057] Figure 22 Structural schematic diagram of the fourth fixture provided by the embodiment of the present application.

[0058] Figure 23 Among them, (a) is the side view of the fourth fixture, Figure 23 Among them, (b) is the top view of the fourth fixture, Figure 23 Among them, (c) is the front view of the fourth fixture.

[0059] Figure 24 Internal structural schematic diagram of the fourth fixture provided by the embodiment of the present application.

[0060] Figure 25 A structural schematic diagram of the fifth fixture provided by the embodiment of the present application.

[0061] Figure 26 A schematic diagram of the fifth fixture provided by the embodiment of the present application placed on the bearing structure.

[0062] Figure 27 Another structural schematic diagram of the fifth fixture provided by the embodiment of the present application.

[0063] Figure 28 Another schematic diagram of the fifth fixture provided by the embodiment of the present application placed on the bearing structure.

[0064] Explanation of reference numerals:

[0065] 200, bearing structure; 201, left armrest; 202, right armrest;

[0066] 100, fixture;

[0067] 1, main body; 11, first pillow body; 111, first pillow body arc surface; 112, first pillow body inclined surface; 113, second tangent line; 114, fourth tangent line; 115, first close part; 12, second pillow body; 121, second pillow body arc surface; 122, second pillow body inclined surface; 123, second close part; 13, third pillow body; 131, first tangent line; 132, third tangent line; 133, third close part; 14, support space; 15, bayonet;

[0068] 2. Skeleton; 21. First support rod; 22. Second support rod; 23. Third support rod;

[0069] 3. Vibrator; 31. First housing; 32. First rotating motor; 33. Eccentric wheel;

[0070] 4. First connector; 41. First connection part; 42. Second connection part; 43. First fixing sleeve; 44. Second fixing sleeve; 45. Tightening belt;

[0071] 5. Second connector; 51. First loop; 52. Second loop; 53. Elastic band; 54. First clamping band; 55. Second clamping band;

[0072] 6. Accommodating structure;

[0073] 7. Massager; 71. Second housing; 72. Second rotating motor; 73. Rocker arm; 731. Outer shaft hole; 732. Inner shaft hole; 74. Elastic member; 75. Extension frame; 751. Extension shaft; 752. Bracket; 7521. Bracket shaft hole; 76. Axle pin; 77. Sphere roller; 771. Roller shaft hole; 78. Opening; 79. Flexible layer;

[0074] 8. Third connector; 81. Third connection part; 82. Fourth connection part;

[0075] 9. Power supply assembly; 91. Battery holder; 92. Battery; 93. Power cord; 94. Connector; 95. Power switch. Detailed implementation manners

[0076] To make the above objects, features, and advantages of the present application more apparent and understandable, the following detailed description of the specific implementation manners of the present application will be given with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0077] Please refer to Figure 4 , the embodiment of the present application provides a bearing structure 200, and the bearing structure 200 can be a sofa, an office chair, a home chair, a folding chair, a reclining chair, a seat of public transportation or private transportation, a bed, a cushion, the ground, etc. The bearing structure 200 includes a backrest 100, and the backrest 100 is arranged on the bearing structure 200 and is used to support the human lumbar and dorsal regions.

[0078] In the embodiment of the present application, the first direction is the A - A direction, and the second direction is the B - B direction.

[0079] The structure of the first fixture 100 provided by the embodiments of the present application will be specifically described below:

[0080] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of the first fixture 100 provided by the embodiments of the present application. In some embodiments, the fixture 100 includes a main body 1, a skeleton 2, and a vibrator 3. The main body 1 is provided with a receiving cavity for setting fillers. The skeleton 2 is placed in the receiving cavity and used to support the fillers mutually. The vibrator 3 is arranged in the receiving cavity and connected to the skeleton 2. Under the support of the skeleton 2, the receiving cavity of the main body 1 of the above fixture 100 and the fillers therein can well adapt to the curve of the human waist, providing the basic function of a comfortable cushioning. By adding the vibrator 3 in the main body 1, when the vibrator 3 works, the vibration generated by it is transmitted to the entire main body 1 through the fillers, enabling the fixture 100 not only to play a static cushioning role but also to provide a dynamic massage effect for the user's waist, promoting blood circulation in the waist, relieving muscle fatigue, and increasing the functions of the fixture 100.

[0081] In an alternative embodiment, the fillers include soft fixing materials, liquids, gases, etc. The soft fixing materials can be carbon fiber low-rebound memory cotton, high-rebound sponge, latex, airbag elastic material, silica gel, etc. In an alternative embodiment, the material of the main body 1 is soft polyester fiber, leak-proof material, including leather, rubber, waterproof fabric, etc., which is used to wrap the fillers and house structures such as the skeleton 2 and the vibrator 3 to prevent the contents of the main body 1 from leaking out.

[0082] Please refer to Figure 2 , in some embodiments, the vibrator 3 includes a first housing 31, a first rotating motor 32, and an eccentric wheel 33. Please refer to Figure 1, the first housing 31 is disposed on the skeleton 2. The first housing 31 has a first accommodating cavity. Both the first rotating motor 32 and the eccentric wheel 33 are disposed in the accommodating cavity. The shaft hole of the eccentric wheel 33 is connected to the first motor shaft of the first rotating motor 32. The first rotating motor 32 is used to drive the eccentric wheel 33 to rotate, so that the eccentric wheel 33 rotates eccentrically to generate vibration. The first housing 31 serves as the external encapsulation of the vibrator 3 and can protect the internal first rotating motor 32 and eccentric wheel 33 from external interference factors. For example, during the daily use of the backrest 100, it may be affected by extrusion, collision, or environmental factors such as dust and moisture. The first housing 31 can prevent these factors from damaging the motor and the eccentric wheel 33 and ensure the normal operation of the vibrator 3. When the first rotating motor 32 drives the eccentric wheel 33 to rotate to generate vibration, the vibration will be transmitted to the first housing 31 and effectively transmitted to the main body 1 of the backrest 100. The first rotating motor 32 is the power source for generating vibration. It drives the eccentric wheel 33 to rotate through its own rotational motion, thereby converting electrical energy into mechanical energy to generate vibration. The driving method of the first rotating motor 32 for the eccentric wheel 33 can provide a stable and continuous power output, ensuring that the vibrator 3 can work stably for a long time. The eccentric wheel 33 can generate an unbalanced centrifugal force during rotation. When the shaft hole of the eccentric wheel 33 is connected to the first motor shaft of the first rotating motor 32 and rotates therewith, due to its uneven mass distribution, a periodic change in centrifugal force will be generated, and this change in centrifugal force will cause the entire vibrator 3 to generate vibration. The eccentric wheel 33 has a compact structure, low cost, and high vibration transmission efficiency. It can effectively convert the rotational power of the motor into vibration and transmit it to the main body 1 of the backrest 100 through the first housing 31 and the filler.

[0083] In an alternative embodiment, the first housing 31 may be an insulating and sealed structure, which can prevent the filler of the main body 1 from entering the first housing 31. In other alternative embodiments, the first housing 31 is a non-sealed structure, that is, the first housing 31 is provided with an opening or the like.

[0084] Please refer to Figure 1 , in an alternative embodiment, the number of vibrators 3 may be one, two, three, four, etc. Multiple vibrators 3 may be arranged at intervals on the skeleton 2.

[0085] Please refer to Figure 1 and Figure 2, in some embodiments, the main body 1 further includes a receiving structure 6 disposed in the receiving cavity. The receiving structure 6 is connected to the skeleton 2 and is used to hold the vibrator 3. The receiving structure 6 can be a cloth bag or a fiber bag, etc. When the receiving structure 6 is a cloth bag, it can provide a relatively soft wrapping environment for the vibrator 3. When the backrest 100 is subjected to external impacts or slight collisions and squeezes during daily use, the cloth bag can buffer the external force and reduce the direct impact force on the vibrator 3. The cloth bag can prevent the vibrator 3 from directly rubbing against other objects (such as fillers) inside the receiving cavity. If the vibrator 3 directly contacts the filler, during long-term vibration, its outer shell may be scratched or even the outer shell may crack. As an isolation layer, the cloth bag can buffer the vibration generated by the vibrator 3 and prevent the vibration from being directly transmitted to the skeleton 2. The receiving structure 6 is connected to the skeleton 2, which enables the vibrator 3 to have a definite installation position in the receiving cavity. The cloth bag can be fixed to the skeleton 2 by sewing, hooks or other connection methods, so as to stably place the vibrator 3 in a suitable position. During the use of the backrest 100, especially when the user changes the placement posture of the backrest 100 or the backrest 100 itself undergoes some displacement, the vibrator 3 fixed in the cloth bag can remain in its original position, ensuring that the effective vibration transmission path remains unchanged. It allows for position offset and correction between the vibrator 3 and the skeleton 2. In this way, the vibration generated by the vibrator 3 can be evenly transmitted to the filler and the main body 1 of the backrest 100. From the installation perspective, placing the vibrator 3 in a receiving structure 6 such as a cloth bag is relatively simple. When manufacturing the backrest 100, workers can easily install the vibrator 3 into the cloth bag and then fix the cloth bag to the skeleton 2 without the need for complex installation tools and processes. For example, compared with directly fixing the vibrator 3 to the skeleton 2 with screws or other means, using a cloth bag can reduce the installation time and cost. For maintenance and repair, when the vibrator 3 fails and needs to be replaced or repaired, with the cloth bag as the receiving structure 6, maintenance personnel can easily remove the vibrator 3 from the cloth bag. Without such a receiving structure 6, the vibrator 3 may be stuck by the filler or other components and is difficult to disassemble. Moreover, the cloth bag can also prevent the vibrator 3 from losing parts to a certain extent during the maintenance process. The cloth bag as the receiving structure 6 can absorb part of the noise generated when the vibrator 3 operates. When the eccentric wheel 33 in the vibrator 3 rotates to generate vibration, noise may be generated due to motor operation, component collision, etc. The soft material of the cloth bag can play a certain sound insulation role and reduce the transmission of this noise to the outside of the backrest 100, providing a relatively quiet use environment for the user.

[0086] Please refer to Figure 1, in an alternative embodiment, the accommodating structures 6 may be one, two, three, four, etc., and the number of the accommodating structures 6 corresponds to the number of the vibrators 3, and each accommodating structure 6 is used to accommodate one vibrator 3.

[0087] Please refer to Figure 1 , in some embodiments, both the main body 1 and the framework 2 are bent, and the bending trajectory of the framework 2 matches the bending trajectory of the main body 1. In the embodiments of the present application, the main body 1 is bent, which is convenient for approaching the contour of the human back line, avoiding the situation of local compression or suspension of the waist and back, thereby effectively reducing the burden on the waist to provide support. The framework 2 is also bent and matches the degree of bending of the main body 1. When the vibrator 3 works, the vibration brought by the eccentric wheel is transmitted to each part of the filler and the main body 1, so that the entire backrest 100 can produce a uniform massage effect. The bent design can make the vibration better act on the key parts of the human waist.

[0088] Please refer to Figure 1 , in some embodiments, third close - fitting parts 133 are convexly provided at both ends of the main body 1 in the first direction. The third close - fitting parts 133 are arranged at the bent ends of the main body 1 and are used to protrude from the left and right sides to closely approach the waist and abdomen of the human body when the main body 1 wraps around both sides of the human waist. The arrangement of the third close - fitting parts 133 can enable the main body 1 to produce a clamping and surrounding feeling on the human waist.

[0089] Please refer to Figure 1 , in some embodiments, the backrest 100 further includes a third connecting member 8. The third connecting member 8 includes a third connecting part 81 and a fourth connecting part 82. The third connecting part 81 is arranged at one end of the main body 1 in the first direction, and the fourth connecting part 82 is arranged at the other end of the main body 1 in the first direction. The third connecting part 81 is used for detachably connecting to the fourth connecting part 82. Please refer to Figure 3 , when the main body 1 approaches the human waist, the third connecting part 81 and the fourth connecting part 82 are connected after surrounding the human waist, which can fix the main body 1 on the human waist. When a person sits on a seat, the main body 1 provides support for the human waist from the back of the human waist, and the third close - fitting parts 133 provide support for the human waist from the left and right sides of the human waist.

[0090] In an alternative embodiment, the third connecting portion 81 may be a hook-and-loop fastener with a fuzzy surface, and the fourth connecting portion 82 may be a hook-and-loop fastener with a prickly surface. Alternatively, the third connecting portion 81 may be a strap with a male buckle, and the fourth connecting portion 82 may be a strap with a female buckle. Alternatively, the third connecting portion 81 may be a strap with a slot, and the fourth connecting portion 82 may be a strap with a plug. Alternatively, the third connecting portion 81 may be a buckle belt with a brooch, and the fourth connecting portion 82 may be a belt provided with a plurality of pinholes at intervals along its own length direction, and the brooch of the third connecting portion 81 can be correspondingly inserted into different pinholes to connect with the fourth connecting portion 82. The second connecting member 5 capable of fixing the main body 1 on the human waist and back is within the protection scope of the embodiments of the present application.

[0091] Please refer to Figure 5 , and the structure of the second backrest 100 provided by the embodiments of the present application will be specifically described below:

[0092] Please refer to Figure 6 , the backrest 100 includes a main body 1, a framework 2, a first connecting member 4, a second connecting member 5, a vibrator 3, a receiving structure 6, a massager 7, and a power supply assembly 9.

[0093] Please refer to Figure 5 , in some embodiments, the main body 1 includes a first pillow body 11, a second pillow body 12, and a third pillow body 13 that are connected to each other. The first pillow body 11, the second pillow body 12, and the third pillow body 13 together form a receiving cavity. The first pillow body 11, the second pillow body 12, and the third pillow body 13 may be independently provided respectively, or the three are communicated. The third pillow body 13 extends along a first direction, and the first pillow body 11 and the second pillow body 12 are respectively disposed on both sides of the third pillow body 13 along the first direction to form a support space 14 for surrounding the waist. The first pillow body 11 and the second pillow body 12 both extend along a second direction, and the second direction intersects with the first direction. The framework 2 is disposed in at least one of the first pillow body 11, the second pillow body 12, and the third pillow body 13. In the embodiments of the present application, the first direction may be a straight line direction or a curved line direction. The second direction may be a straight line direction or a curved line direction. The first pillow body 11, the second pillow body 12, and the third pillow body 13 extend linearly or curvilinearly. The first pillow body 11 and the second pillow body 12 are respectively disposed on both sides of the third pillow body 13 to form a support space 14 for surrounding the waist. This structure can better fit the curve of the human waist and prevent the waist from shaking excessively in the left and right directions. The third pillow body 13 provides the main supporting force behind the waist, which conforms to the ergonomic principle. Thus, the first pillow body 11, the second pillow body 12, and the third pillow body 13 can simultaneously relieve the pressure on the human waist support from three directions.

[0094] Please refer to Figure 17 , Figure 20 and Figure 21, in the embodiments of the present application, the specific shapes of the first pillow body 11, the second pillow body 12, and the third pillow body 13 are not limited. The first pillow body 11 can be rod-shaped, bar-shaped, dumbbell-shaped, curved, or other irregular shapes, etc. The second pillow body 12 and the third pillow body 13 can be ellipsoidal, cylindrical, or other irregular shapes, etc. The embodiments of the present application do not limit the specific shapes of the first pillow body 11, the second pillow body 12, and the third pillow body 13.

[0095] Please refer to Figure 7 and Figure 19 , in some embodiments, one side of the first pillow body 11 facing the support space 14 along the first direction has a first pillow body arc surface 111, and the central angle Y of the first pillow body arc surface 111 1 is: 30° ≤ Y 1 ≤ 180°. And / or, one side of the second pillow body 12 facing the support space 14 along the first direction has a second pillow body arc surface 121, and the central angle Y of the second pillow body arc surface 121 2 is: 30° ≤ Y 2 ≤ 180°. When the human waist presses against the first pillow body arc surface 111 and the second pillow body arc surface 121, the first pillow body arc surface 111 and the second pillow body arc surface 121 can gradually approach the human waist from the left and right sides according to the contour of the human body, providing a softer and more natural support for the waist and reducing the gap between the waist and the backrest 100. The first pillow body arc surface 111 and the second pillow body arc surface 121 can effectively disperse the pressure exerted by the human waist. Because the pressure will be distributed along the tangent direction of the arc surface, rather than concentrating at a certain point or area like a plane. This can avoid discomfort caused by excessive local pressure and enable the waist muscles to be stressed more evenly. For thinner people with a thinner waist, an arc surface with a smaller central angle can also fit well; while for fatter people, an arc surface with a larger central angle can provide sufficient wrapping range and fully support the waist from both left and right sides.

[0096] Exemplarily, the central angle Y of the first pillow body arc surface 111 1 can be any point value within the above range, for example, it can be 30°, 60°, 90°, 120°, 150°, 180°, etc. The central angle Y of the second pillow body arc surface 121 2 can be any point value within the above range, for example, it can be 30°, 60°, 90°, 120°, 150°, 180°, etc.

[0097] Please refer to Figure 7 and Figure 19 , in an alternative embodiment, the cross-sectional shape of the main body 1 in its own thickness direction can be circular, elliptical, irregular, etc. In other words, the main body 1 can be bent from an object with a shape such as an ellipsoid or a cylinder to form the first pillow body 11, the second pillow body 12, and the third pillow body 13.

[0098] Please refer to Figure 8 and Figure 18 In some embodiments, one end of the first pillow body 11 away from the third pillow body 13 along the second direction has a first pillow body inclined surface 112. The first pillow body inclined surface 112 is at least partially located outside the support space 14. The side of the first pillow body inclined surface 112 away from the third pillow body 13 is inclined towards the inside of the first pillow body 11 relative to the side of the first pillow body inclined surface 112 close to the third pillow body 13; one end of the second pillow body 12 away from the third pillow body 13 along the second direction has a second pillow body inclined surface 122. The second pillow body inclined surface 122 is at least partially located outside the support space 14. The side of the second pillow body inclined surface 122 away from the third pillow body 13 is inclined towards the inside of the second pillow body 12 relative to the side of the second pillow body inclined surface 122 close to the third pillow body 13. Providing the first pillow body inclined surface 112 and the second pillow body inclined surface 122 can maximize the contact area between the first pillow body 11 and the second pillow body 12 and the seat backrest, increase the friction of the main body 1 on the seat, so as to prevent it from slipping from the seat or the position where a person sits.

[0099] Please refer to Figure 8 and Figure 18 The included angle formed by the first pillow body 11 and the first pillow body inclined surface 112 is X 1 The included angle formed by the second pillow body 12 and the second pillow body inclined surface 122 is X 2 Satisfying: X 1 > 90°, X 2 > 90°. Exemplarily, X 1 and X 2 can be 100°, 120°, 140°, 160°, etc.

[0100] Please refer to Figure 9 In some embodiments, the first pillow body 11 is convexly provided with a first close portion 115 towards the support space 14; and / or, the second pillow body 12 is convexly provided with a second close portion 123 towards the support space 14. The first close portion 115 and the second close portion 123 protrude the first pillow body 11 and the second pillow body 12 from the left and right sides according to the body line contour, and asymptotically approach the soft waist and abdomen of the human body; the first close portion 115 and the second close portion 123 give a more clamping and embracing feeling to the soft waist and abdomen when the human waist is squeezed, so that the backrest 100 can be more tightly fixed to the human waist, reduce the displacement of the backrest 100 during use, especially when a person is moving on the seat, the backrest 100 can also maintain a relatively stable position and continuously provide effective support and massage for the waist.

[0101] Please refer to Figure 9, in an alternative embodiment, the first close - fitting part 115 protrudes from the first pillow body arc surface 111, and the second close - fitting part 123 protrudes from the second pillow body arc surface 121. The first close - fitting part 115 and the second close - fitting part 123 cooperate with the first pillow body arc surface 111 and the second pillow body arc surface 121 respectively, and the pressure will be distributed along the tangent directions of the first pillow body arc surface 111 and the second pillow body arc surface 121, avoiding excessive local pressure. The first pillow body arc surface 111 and the second pillow body arc surface 121 can asymptotically approach the human body according to the human waist curve itself. The first close - fitting part 115 and the second close - fitting part 123 can form a natural transition with the first pillow body arc surface 111 and the second pillow body arc surface 121, making the close - fitting and supporting effects more natural and smooth, avoiding abrupt support points or support areas, and further improving the fitting degree and comfort.

[0102] Please refer to Figure 6 、 Figure 10 and Figure 11 , in some embodiments, the backrest 100 further includes a first connecting member 4. The first connecting member 4 includes a first connecting portion 41 and a second connecting portion 42. The first connecting portion 41 is provided on the first pillow body 11, and the second connecting portion 42 is provided on the second pillow body 12. The first connecting portion 41 is used to detachably connect to different positions of the second connecting portion 42 to adjust the position of the first pillow body 11 relative to the second pillow body 12. In an alternative embodiment, the first connecting portion 41 can be a male buckle, and the second connecting portion 42 can be a female buckle. Or the first connecting portion 41 can be a slot, and the second connecting portion 42 can be a plug. Or the first connecting portion 41 can be the buckle head of a snap pin, and the second connecting portion 42 can be a belt provided with a plurality of pin holes at intervals along its own length direction, and the snap pin of the first connecting portion 41 can be correspondingly inserted into different pin holes to connect with the second connecting portion 42. Any connection structure that can connect the first connecting portion 41 and the second connecting portion 42 and can change the connection length between the first connecting portion 41 and the second connecting portion 42 is within the protection scope of the embodiments of the present application.

[0103] Please refer to Figure 6 、 Figure 10 and Figure 11 , in an alternative embodiment, the first connecting member 4 includes a first fixing sleeve 43, a second fixing sleeve 44 and a tensioning belt 45. The first fixing sleeve 43 is provided with a first connecting portion 41, and the first connecting portion 41 is a male snap fastener. The second fixing sleeve 44 is provided with a second connecting portion 42, and the second connecting portion 42 is also a male snap fastener. The tensioning belt 45 is provided with a plurality of female snap fasteners. The male snap fasteners on the first connecting portion 41 and the second connecting portion 42 are both snapped with the female snap fasteners on the tensioning belt 45. By making the male snap fasteners on the first connecting portion 41 and / or the second connecting portion 42 snap with the female snap fasteners at different positions on the tensioning belt 45, the distance between the first fixing sleeve 43 and the second fixing sleeve 44 is changed, and thus the distance between the first pillow body 11 and the second pillow body 12 is adjusted.

[0104] Please refer to Figure 6 and Figure 12 In some embodiments, the backrest 100 further includes a second connecting member 5 for connecting the backrest 100 to the bearing structure 200. The second connecting member 5 can be a magic tape, a snap fastener, a strap, etc. In an alternative embodiment, the second connecting member 5 includes a first loop 51, a second loop 52 and an elastic band 53. The two ends of the elastic band 53 are respectively connected to the first loop 51 and the second loop 52. The first loop 51 is sleeved on the first pillow body 11, the second loop 52 is sleeved on the second pillow body 12, and the elastic band 53 is sleeved on the back of the seat. The elastic function of the elastic band 53 can fix the main body 1 on the back of the seat through the first loop 51 and the second loop 52.

[0105] Please refer to Figure 13 In some embodiments, the framework 2 includes a first support rod 21, a second support rod 22 and a third support rod 23 which are connected to each other. The third support rod 23 extends along a first direction, and the first support rod 21 and the second support rod 22 are respectively arranged on both sides of the third support rod 23 along the first direction. The first support rod 21 and the second support rod 22 both extend along a second direction. The first support rod 21 is arranged in the first pillow body 11, the second support rod 22 is arranged in the second pillow body 12, and the third support rod 23 is arranged in the third pillow body 13. The first support rod 21, the second support rod 22, the third support rod 23 and the filling layer support and rely on each other, and the vibrator 3 is arranged on the third support rod 23. The first support rod 21 and the second support rod 22 are respectively arranged on both sides of the third support rod 23 along the first direction and both extend along the second direction, and together with the third support rod 23, they form a stable support structure. The pressure can be evenly transmitted to these three support rods through the filling layer, improving the overall support stability of the backrest 100. The three support rods are connected to each other to form a solid framework, which can effectively resist external forces from different directions, reduce the possibility of deformation of the backrest 100 during use due to external forces, maintain the shape and height of the backrest 100, and extend the service life of the backrest 100.

[0106] In the embodiments of the present application, since the first pillow body 11, the second pillow body 12 and the third pillow body 13 all extend in a straight line, the first support rod 21, the second support rod 22 and the third support rod 23 also all extend in a straight line, so that the framework 2 can match the structure of the pillow body.

[0107] Please refer to Figure 9 In an alternative embodiment, the connection between the first pillow body 11 and the third pillow body 13, and the connection between the second pillow body 12 and the third pillow body 13 can be an angular connection. Or, please refer to Figure 17 In an alternative embodiment, the connection between the first pillow body 11 and the third pillow body 13, and the connection between the second pillow body 12 and the third pillow body 13 are chamfered or rounded transition connections.

[0108] Please refer to Figure 14 , in an alternative embodiment, a plurality of vibrators 3 are provided in the main body 1. The plurality of vibrators 3 are spaced apart on the third support rod 23. The structure of the vibrator 3 is the same as that of the vibrator 3 in the structure of the first main body 1, and will not be described in detail here. Each vibrator 3 is also fixed on the third support rod 23 by the accommodating structure 6.

[0109] Please refer to Figure 14 , in some embodiments, the backrest 100 further includes a massager 7. The massager 7 is disposed in the accommodating cavity and is connected to the skeleton 2. The massager 7 and the vibrator 3 are spaced apart. By providing the massager 7, the functions of the backrest 100 can be enriched.

[0110] Please refer to Figure 15, in some embodiments, the massager 7 includes a second housing 71, and a second rotary motor 72, a rocker arm 73, an elastic member 74, an extension bracket 75, a shaft pin 76, and a spherical roller 77 disposed in a second accommodation cavity of the second housing 71. The second housing 71 is connected to the framework 2. The second housing 71 is provided with an opening 78 communicating with the second accommodation cavity. The rocker arm 73 is provided with an outer shaft hole 731 along a third direction, and the rocker arm 73 is provided with an inner shaft hole 732 along a fourth direction. The third direction intersects with the fourth direction. The extension bracket 75 includes an extension shaft 751 and a bracket 752 connected to each other. The elastic member 74 is disposed in the inner shaft hole 732. One end of the elastic member 74 is connected to the hole wall of the inner shaft hole 732, and the other end is connected to the extension shaft 751. The extension shaft 751 passes through the inner shaft hole 732 and is slidably connected to the inner shaft hole 732. The bracket 752 is provided with a bracket shaft hole 7521 therethrough. The spherical roller 77 is provided with a roller shaft hole 771. The shaft pin 76 passes through the roller shaft hole 771 and the bracket shaft hole 7521 so that the spherical roller 77 is rotatably connected to the bracket 752. The second motor shaft of the second rotary motor 72 is fixedly disposed in the outer shaft hole 731. The second rotary motor 72 is configured to drive the rocker arm 73 to rotate, so that the extension bracket 75 expands and contracts relative to the opening 78 along the fourth direction under the action of the elastic member 74. It can be understood that when the second rotary motor 72 rotates, since the second motor shaft is fixedly connected to the outer shaft hole 731 of the rocker arm 73, the rocker arm 73 will rotate accordingly. As the rocker arm 73 rotates, the extension shaft 751 of the extension bracket 75 slides in the inner shaft hole 732 of the rocker arm 73. Since the elastic member 74 is disposed in the inner shaft hole 732 of the rocker arm 73, the extension shaft 751 will squeeze the elastic member 74 during the sliding process, causing the elastic member 74 to generate an elastic force. The bracket 752 is connected to the spherical roller 77 through the shaft pin 76. When the extension shaft 751 slides in the inner shaft hole 732 of the rocker arm 73, the spherical roller 77 will move accordingly. When the spherical roller 77 moves to the opening 78, it squeezes the flexible layer 79 and then squeezes the filling layer at the position of the human waist. When the filling layer is squeezed, the filling layer will squeeze the extension shaft 751 of the extension bracket 75 axially into the inner shaft hole 732 of the rocker arm 73. At this time, the elastic member 74 placed in the inner shaft hole 732 of the rocker arm 73 is squeezed by the extension shaft 751, and its reverse elastic force increases and is applied reversely to the extension shaft 751 and the spherical roller 77, and then applied to the human waist, thereby generating a pushing and massaging effect on the human waist.

[0111] The second rotary motor 72, the rocker arm 73, the elastic member 74, the extension bracket 75, the shaft pin 76 and the spherical roller 77 are all arranged in the second accommodation cavity of the second housing 71, making the structure of the massager 7 relatively compact. This compact design can effectively utilize space and avoid the problem of excessive space occupation caused by the dispersion of each component. In a product like the backrest 100 with certain space limitations, the compact structure of the massager 7 can better fit the accommodation cavity and will not affect the placement of other components of the backrest 100 (such as fillers, the skeleton 2, the vibrator 3, etc.) due to the over-large volume of the massager 7. The setting of the elastic member 74 plays a role in buffering and protecting. When the spherical roller 77 contacts the human waist and is subjected to pressure, the extension shaft 751 of the extension bracket 75 will squeeze the elastic member 74, and the elastic force of the elastic member 74 can buffer the impact force of the spherical roller 77 on the human body. At the same time, the elastic member 74 can also adjust the massage intensity. According to the massage intensity requirements of different users or different massage stages, the elastic member 74 can change the telescopic degree of the extension bracket 75 through its own elastic deformation, thereby adjusting the pushing force of the spherical roller 77 on the human waist. The second housing 71 provides protection for the internal second rotary motor 72, the rocker arm 73 and other components. During the daily use of the backrest 100, it may be affected by factors such as dust, moisture or external collisions. The second housing 71 can prevent these external factors from entering the interior and damaging precision components such as the motor, ensuring that the massager 7 can work stably. During the massage process, when the human waist exerts a large pressure on the spherical roller 77 or the backrest 100 is subjected to an external impact, the connection between the rocker arm 73 and the extension bracket 75 and the elastic member 74 can play a buffering role. For example, when the user suddenly leans on the backrest 100 or changes the posture, the pressure of the waist on the spherical roller 77 will increase instantaneously. At this time, the extension shaft 751 of the extension bracket 75 will slide in the inner shaft hole 732 of the rocker arm 73, squeezing the elastic member 74, and the elastic member 74 will absorb part of the impact force, avoiding an overly strong reaction force of the spherical roller 77 on the waist and thus improving the comfort of the massage. The coordinated work of the rocker arm 73, the extension bracket 75 and the spherical roller 77 can provide a relatively stable massage experience. The rotational movement of the rocker arm 73 is relatively stable, and the spherical roller 77 massages under this stable movement state, which can avoid jamming or sudden changes in force during the massage process, making the user feel more comfortable and relaxed.

[0112] Please refer to Figure 15In some embodiments, the massager 7 further comprises a flexible layer 79, which is connected to the second housing 71 and covers the opening 78, and is used to flexibly contact the ball roller 77. The flexible layer 79 is provided to form a closed cavity of the massager 7. When the ball roller 77 contacts the flexible layer 79 during the movement, the flexible layer 79 can buffer the massage force of the ball roller 77. Since the movement of the mechanical structure inside the massager 7 may produce a relatively stiff force, the flexible layer 79 is like a soft transition medium, which makes the pressure transmission of the ball roller 77 to the waist of the human body softer. The flexible layer 79 serves as a protective layer at the opening 78 to prevent external objects from directly contacting the ball roller 77 and other internal components. During the operation of the massager 7, the ball roller 77 will frequently move and contact the outside. If there is no flexible layer 79, the filler in the support 100 may be rolled into the massager 7 by the ball roller 77, resulting in blockage or damage of the internal components. The flexible layer 79 can stabilize the massaging action transmission of the spherical roller 77. It can reduce the vibration and shaking of the spherical roller 77 during the movement, so that the massaging action acts on the human waist more smoothly.

[0113] The embodiment of the present application does not limit the number and position of the massagers 7 . For example, the number of the massagers may be one, two, three, four, etc. The massager 7 may be arranged on any one of the first pillow body 11 , the second pillow body 12 and the third pillow body 13 .

[0114] See also Figure 16 In an optional embodiment, a plurality of massagers 7 are provided in the main body 1, and the plurality of massagers 7 are respectively provided on the first pillow body 11 and the second pillow body 12, and are provided near the first proximate portion 115 of the first pillow body 11 and the second proximate portion 123 of the second pillow body 12. Specifically, the massagers 7 are respectively provided at the first proximate portion 115 of the first pillow body 11 and the second proximate portion 123 of the second pillow body 12. Since the first proximate portion 115 and the second proximate portion 123 are further close to the waist of the human body, the massagers 7 are provided here, which can improve the massage effect on the waist of the human body.

[0115] See also Figure 16 In an optional embodiment, the backrest 100 further includes a power supply assembly 9, which includes a battery holder 91, a battery 92, a power cord 93 and a connector 94. The battery holder 91 is recessed on the third pillow body 13, and the battery 92 is disposed in the battery holder 91. One end of the power cord 93 is electrically connected to the first rotary motor 32 and the second rotary motor 72, respectively, and the other end of the power cord 93 is electrically connected to the connector 94, which is used to be inserted into the socket of the battery 92. A power switch 95 is provided on the battery 92. By turning on the power switch 95, the battery 92 supplies power to the first rotary motor 32 and the second rotary motor 72 through the power cord 93.

[0116] Please refer to Figure 21 , the structure of the third fixture 100 provided by the embodiments of the present application will be specifically described below:

[0117] Please refer to Figure 21 , in the structure of the third fixture 100, the main body 1 also includes a first pillow body 11, a second pillow body 12 and a third pillow body 13. The two ends of the third pillow body 13 are large and the middle is small. The third close parts 123 are respectively arranged at both ends (the two ends) of the third pillow body 13. When the third pillow body 13 approaches the bearing mechanism 200, the two ends of the third pillow body 13 are in contact with and close to the bearing mechanism 200, and there is a gap between the middle of the third pillow body 13 and the bearing mechanism 200. When the third pillow body 13 is squeezed by the human waist, the middle part of the third pillow body 13 is squeezed and deformed, approaching the bearing mechanism 200, eliminating the gap when the human waist is not squeezed. Since the two ends of the third pillow body 13 are large, when the third pillow body 13 is squeezed by the human waist, the points or surfaces where the two ends of the third pillow body 13 are in contact with the bearing mechanism 200 serve as the support points or surfaces for the squeezing force of the human waist on the middle part of the third pillow body 13, pushing up the opposite side of the support point or surface, that is, the surfaces of the two ends of the third pillow body 13 that are not in contact with the bearing mechanism 200 are deformed and bent to form an arc, clamping the human waist from both sides. In this way, the human waist is supported and surrounded from three aspects. The structure of the third pillow body 13 with large ends and a small middle is an application of the lever principle. The middle part of the third pillow body 13 is the force arm, and the points or surfaces where the two ends of the third pillow body 13 are in contact with the bearing mechanism 200 are the fulcrums. The resistance arms are the two ends of the third pillow body 13 respectively. The distance between the middle part of the third pillow body 13 and the bearing mechanism 200 is approximately the displacement distance of the power arm. Since the third pillow body 13 is a part of the main body 1 and includes a filling layer, and the material of the filling layer is not a rigid connection structure, the displacement distance of the power arm cannot be directly converted into the height of pushing up the opposite side of the contact point or surface between the two ends of the third pillow body 13 and the bearing mechanism 200, but will pull and bend the two ends of the third pillow body 13, causing the surfaces of the two ends of the third pillow body 13 in contact with the human waist to deform and bend along the contour of the human waist, achieving the effect of surrounding the human waist from three sides.

[0118] The structure of the fourth fixture 100 provided by the embodiments of the present application will be specifically described below:

[0119] Please refer to Figure 22 , in the structure of the fourth fixture 100, the main body 1 also includes a first pillow body 11, a second pillow body 12 and a third pillow body 13.

[0120] In some embodiments, the third pillow body 13 is bent, and the trajectory of the third pillow body 13 extending along the first direction is a curve. Thus, the curved surface of the third pillow body 13 is set as the curved surface of the third pillow body 13. The bent structure of the third pillow body 13 facilitates the curved surface of the third pillow body 13 to approach the contour of the human back line and provide support.

[0121] In the embodiments of the present application, the second pillow body 12 and the third pillow body 13 extend along the second direction, and the second direction is a straight line direction.

[0122] Please refer to Figure 22 , in some embodiments, third close parts 133 are convexly provided at both ends of the third pillow body 13 along the first direction. The third close parts 133 can be arranged at both ends of the third pillow body 13. The third close parts 133 are integrally connected with the third pillow body 13. Since the third pillow body 13 is a curved structure, the third close parts 133 are arranged at the curved ends of the third pillow body 13 and can wrap around both sides of the human waist and protrude from the left and right sides to closely approach the soft waist and abdomen of the human body; when the third close parts 133 are squeezed by the human waist, the soft waist and abdomen can have a feeling of being clamped and surrounded.

[0123] Please refer to Figure 23 in (a) of , in some embodiments, both ends of the third pillow body 13 along the first direction are inclined towards the first pillow body 11 and the second pillow body 12 respectively along the second direction relative to the middle part of the third pillow body 13 along the first direction. It can make the positions of the ends of the third pillow body 13 on the third pillow body 13 lower than the middle part of the third pillow body 13. The third pillow body 13 is provided with a central plane C, and the included angle Z between the central plane C and the first pillow body 11 and the second pillow body 12 satisfies: Z ≤ 90°. Exemplarily, Z can be any point value within the above range, for example, it can be 30°, 40°, 50°, 60°, 70°, etc.

[0124] Please refer to Figure 23 in (b) of , in some embodiments, along the direction from the third pillow body 13 towards the support space 14, the projection contour edge of the third pillow body 13 has a first tangent line 131, and the projection contour edge of the first pillow body 11 and / or the second pillow body 12 has a second tangent line 113. The first tangent line 131 and the second tangent line 113 have a spacing F in the direction pointing to the center of its own circle of the curve track where the third pillow body 13 extends, satisfying: -150 mm ≤ F ≤ +150 mm; and / or, please refer to Figure 23 in (c) of , along the direction from the third pillow body 13 towards the support space 14, the projection contour edge of the third pillow body 13 has a third tangent line 132, and the projection contour edge of the first pillow body 11 and / or the second pillow body 12 has a fourth tangent line 114. The third tangent line 132 and the fourth tangent line 114 have a spacing E in the secant direction of the line connecting the two ends of the curve track where the third pillow body 13 extends, satisfying: -150 mm ≤ E ≤ +150 mm. Setting E and F can make the first pillow body 11 and the second pillow body 12 closer to the human waist.

[0125] Exemplarily, E can be any point value within the above range, for example, it can be -150 mm, -100 mm, -50 mm, 0 mm, 50 mm, 100 mm, 150 mm, etc., and F can be any point value within the above range, for example, it can be -150 mm, -100 mm, -50 mm, 0 mm, 50 mm, 100 mm, 150 mm, etc.

[0126] Please refer to Figure 24 In the structure of the fourth fixture 100, the framework 2 also includes a first support rod 21, a second support rod 22, and a third support rod 23. Among them, the third support rod 23 is bent, and the trajectory of the third support rod 23 extending along the first direction is a curve, and this curve matches the curve extension trajectory of the third pillow body 13.

[0127] In the structure of the fourth fixture 100, only the vibrator 3 is provided in the accommodation cavity of the main body 1. A plurality of vibrators 3 are arranged at intervals on the third support rod 23 in the third pillow body 13. A plurality of vibrators 3 are filled and fixed on the third support rod 23 through cloth bags. The structure of the vibrator 3 in the embodiments of the present application is the same as the structure of the vibrator 3 described above, and will not be specifically described herein.

[0128] Please refer to Figure 22 In the structure of the fourth fixture 100, the power supply assembly 9 is arranged on the first pillow body 11, that is, both the power supply and the battery holder 9 are arranged on the first pillow body 11. The embodiments of the present application do not limit the specific installation position of the power supply assembly, and it can be set at any position on the main body 1 according to actual needs.

[0129] In an alternative embodiment, the main body 1 can be bendable and variable, or pre-bent and fixed. It can be understood that "bendable and variable" means that the original structure of the main body 1 is straight, but it has the characteristic of being bendable and can form an encircling structure as needed, with a flexible and variable structure. "Pre-bent and fixed" means that the main body 1 is designed to be bent from the beginning and directly presents an encircling state structure.

[0130] The following will specifically describe the structure of the fifth fixture 100 provided by the embodiments of the present application:

[0131] Please refer to Figure 25 and Figure 27 , Figure 25 and Figure 27 show the structure of the fifth fixture 100 provided by the embodiments of the present application. The main body 1 of the fifth fixture 100 is bendable and variable, and can be arranged around the rear, left, and right sides of the user's waist after being bent by the user.

[0132] In some embodiments, the main body 1 is recessed with a bayonet 15 for clamping on the bearing structure 200. The second connecting member 5 includes a first tape 54 and a second tape 55. Both the first tape 54 and the second tape 55 are arranged on the main body 1, and the first tape 54 and the second tape 55 are used to connect the main body 1 to the bearing structure 200. By providing the bayonet 15 on the main body 1, the contact area between the main body 1 and the bearing structure 200 can be increased, and the connection stability of the main body 1 fixed on the bearing structure 200 can be improved.

[0133] In an alternative embodiment, the bearing structure 200 is a seat, and the seat has a left armrest 201 and a right armrest 202. Bayonets 15 are provided at both ends of the main body 1 along its length direction, and the bayonets 15 are respectively clamped on the left armrest 201 and the right armrest 202. The first tape 54 and the second tape 55 are arranged at the bayonets 15, and can connect both ends of the main body 1 to the left armrest 201 and the right armrest 202.

[0134] In an alternative embodiment, the first tape 54 and the second tape 55 can be directly tied to the left armrest 201 or the right armrest 202. Or, a fuzzy surface of a magic tape is provided on the first tape 54, and a prickly surface of the magic tape is provided on the second tape 55, so that the first tape 54 and the second tape 55 are adhered. Or, a male buckle is provided on the first tape 54, and a female buckle is provided on the second tape 55, so that the first tape 54 and the second tape 55 are buckled. The embodiments of the present application do not limit the connection manner of the first tape 54 and the second tape 55, and any connection manner that can realize the connection between the first tape 54 and the second tape 55 is within the protection scope of the embodiments of the present application.

[0135] In an alternative embodiment, the bayonet 15 can be a surrounding or semi-surrounding groove, notch, ridge or step, etc., which can be used to limit the installation position of the main body 1 on the bearing structure 200.

[0136] In an alternative embodiment, please refer to Figure 25 , the bayonet 15 can be provided on the left and right sides of the main body 1. Please refer to Figure 27 , the bayonet 15 can be provided at the bottom of the main body 1. The embodiments of the present application do not limit the specific installation position of the bayonet 15, and any position that can be clamped with the bearing structure 200 is within the protection scope of the embodiments of the present application.

[0137] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0138] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0139] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "coupled", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0140] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0141] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0142] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0143] The above-described embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

1. A support, characterized in that: The invention comprises a main body, wherein the main body is provided with a containing cavity, wherein the containing cavity is used for arranging a filler, and the main body is used for being arranged on a bearing structure, and the main body is used for being arranged around at least the back, left and right sides of the waist of a human body.

2. The support according to claim 1, characterized in that: The main body is of a bendable and variable type, or the main body is of a pre-bent and fixed type.

3. The support according to claim 2, characterized in that: The main body includes a first pillow body, a second pillow body and a third pillow body that are connected to each other. The first pillow body, the second pillow body and the third pillow body together form the accommodating cavity. The third pillow body extends along a first direction. The first pillow body and the second pillow body are respectively arranged on both sides of the third pillow body along the first direction to construct a supporting space for embracing the waist. The first pillow body and the second pillow body both extend along a second direction, and the second direction intersects with the first direction.

4. The support according to claim 3, characterized in that: The first pillow body has a first pillow body arc surface on one side thereof facing the support space along the first direction, and an arc center angle Y1 of the first pillow body arc surface is: 30°≤Y1≤180°; And / or, the second pillow body has a second pillow body arc surface on one side along the first direction toward the support space, and an arc center angle Y2 of the second pillow body arc surface is: 30°≤Y2≤180°.

5. The support according to claim 3, characterized in that: The first pillow body has a first pillow body inclined surface at one end away from the third pillow body along the second direction, the first pillow body inclined surface is at least partially located outside the support space, and a side of the first pillow body inclined surface away from the third pillow body is inclined toward the inside of the first pillow body relative to a side of the first pillow body inclined surface close to the third pillow body; and / or The second pillow body has a second pillow body slope at one end away from the third pillow body along the second direction, and the second pillow body slope is at least partially located outside the supporting space. The side of the second pillow body slope away from the third pillow body is inclined toward the inside of the second pillow body itself relative to the side of the second pillow body slope close to the third pillow body.

6. The support according to claim 3, characterized in that: The third pillow body is arranged in a curved manner or in a straight line, and a trajectory of the third pillow body extending along the first direction is a curve or a straight line.

7. The support according to claim 6, characterized in that: Two ends of the third pillow body along the first direction are inclined along the second direction toward the first pillow body and the second pillow body respectively relative to the middle portion of the third pillow body along the first direction.

8. The support according to claim 6, characterized in that: Along the direction from the third pillow body to the support space, the edge of the projected contour of the third pillow body has a first tangent, the edge of the projected contour of the first pillow body and / or the second pillow body has a second tangent, and the first tangent and the second tangent have a spacing F in the direction from the curved trajectory of the third pillow body extending to the center of its own circle, satisfying: -150 mm ≤ F ≤ +150 mm; And / or, along the direction of the third pillow body pointing to the support space, the projected contour edge of the third pillow body has a third tangent, the projected contour edge of the first pillow body and / or the second pillow body has a fourth tangent, and the third tangent and the fourth tangent have a spacing E in the secant direction of the line connecting the two ends of the curved trajectory extending from the third pillow body, satisfying: -150mm≤E≤+150mm.

9. The support according to claim 3, characterized in that: The first pillow body is provided with a first proximal portion protruding toward the support space; And / or, the second pillow body is provided with a second proximal portion protruding toward the support space; And / or, the third pillow body is provided with third proximal portions at both ends along the first direction.

10. The support according to claim 3, characterized in that: The backrest also includes a first connecting member, which includes a first connecting portion and a second connecting portion. The first connecting portion is arranged on the first pillow body, and the second connecting portion is arranged on the second pillow body. The first connecting portion is used to be detachably connected to different positions of the second connecting portion to adjust the position of the first pillow body relative to the second pillow body.

11. The support according to claim 1, characterized in that: The support further comprises a second connecting member, and the second connecting member is used to connect the support to the bearing structure.

12. The support according to claim 11, characterized in that: The main body is recessed with a bayonet, which is used to clamp on the bearing structure. The second connecting member includes a first clip and a second clip, which are both arranged on the main body, and are used to connect the main body to the bearing structure.

13. The support according to any one of claims 1 to 12, characterized in that: The support also includes a frame and a vibrator. The frame is placed in the accommodating cavity and is used to support the filler. The vibrator is arranged in the accommodating cavity and connected to the frame.

14. The support according to claim 13, characterized in that: The vibrator includes a first shell, a first rotating motor and an eccentric wheel. The first shell is arranged on the frame. The first shell has a first accommodating cavity. The first rotating motor and the eccentric wheel are both arranged in the accommodating cavity. The axial hole of the eccentric wheel is connected to the first motor shaft of the first rotating motor. The first rotating motor is used to drive the eccentric wheel to rotate so that the eccentric wheel vibrates.

15. The support according to claim 13, characterized in that: The support also includes a containing structure, which is arranged in the containing cavity and connected to the frame, and is used to contain the vibrator.

16. The support according to claim 13, characterized in that: The backrest also includes a massager, which is arranged in the accommodating cavity and connected to the frame, and the massager is spaced apart from the vibrator.

17. The support according to claim 16, characterized in that: The massager includes a second shell and a second rotating motor, a rocker arm, an elastic member, an extension frame, an axle pin and a ball roller arranged in a second accommodating chamber of the second shell. The second shell is connected to the frame. The second shell is provided with an opening communicating with the second accommodating chamber. The rocker arm is provided with an outer axle hole along a third direction. The rocker arm is provided with an inner axle hole along a fourth direction. The third direction intersects with the fourth direction. The extension frame includes a connected extension shaft and a bracket. The elastic member is arranged in the inner axle hole. One end of the elastic member is connected to the hole wall of the inner axle hole, and the other end is connected to the extension shaft. The extension shaft is penetrated in the inner axle hole and slidably connected to the inner axle hole. The bracket is penetrated with a bracket axle hole. The ball roller is provided with a roller axle hole. The axle pin penetrates the roller axle hole and the bracket axle hole so that the ball roller is rotatably connected to the bracket. The second motor shaft of the second rotating motor is fixed in the outer axle hole. The second rotating motor is used to drive the rocker arm to rotate so that the extension frame can be extended and retracted relative to the opening along the fourth direction under the action of the elastic member.

18. The support according to claim 13, characterized in that: The skeleton includes a first support rod, a second support rod and a third support rod connected to each other, the third support rod extends along the first direction, the first support rod and the second support rod are respectively arranged on both sides of the third support rod along the first direction, the first support rod and the second support rod both extend along the second direction, the first support rod, the second support rod and the third support rod support each other with the filling layer, and the vibrator is arranged on at least one of the first support rod, the second support rod and the third support rod.

19. The support according to claim 13, characterized in that: The main body and the skeleton are both arranged along a curve or a straight line, and an extension track of the skeleton matches an extension track of the main body.

20. The support according to any one of claims 1 to 19, characterized in that: The main body is provided with third proximal portions at both ends along its length direction.

21. The support according to any one of claims 1 to 19, characterized in that: The backrest also includes a third connecting member, which includes a third connecting portion and a fourth connecting portion. The third connecting portion is arranged at one end of the main body along the first direction, and the fourth connecting portion is arranged at the other end of the main body along the first direction. The third connecting portion is used to be detachably connected to the fourth connecting portion.

22. The support according to any one of claims 1 to 19, characterized in that: The backrest also includes a power supply assembly, which includes a battery holder, a battery, a power cord and a connector. The battery holder is recessed on the main body, and the battery is disposed in the battery holder. One end of the power cord is electrically connected to the vibrator, and the other end of the power cord is electrically connected to the connector. The connector is used to be inserted into a socket of the battery, and a power switch is provided on the battery.

23. A bearing structure, characterized in that: The bearing structure comprises a support as claimed in any one of claims 1 to 22.

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