Waist support assembly and seat

Abstract

The waist support assembly comprises a waist support body and an adjusting assembly, the waist support body is connected with a back plate of the seat through the adjusting assembly, the adjusting assembly comprises an adjusting piece, and the length of the adjusting piece can be adjusted so as to adjust the angle between the waist support body and the back plate. According to the waist support assembly, support is continuously provided for the waist through the connecting rod mechanism, personalized support experience is provided for a user, the user can keep a good sitting posture no matter in a working state or a resting state, the problems of muscle tension and fatigue caused by long-time sitting are solved, and the stability and durability of the waist support assembly are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of seat manufacturing, in particular to a waist support component and a seat. Background Art

[0002] Related art indicates that existing chair structures often utilize fixed support designs, lacking adaptive support for various parts of the user's body. This can lead to discomfort or fatigue after prolonged use. These chairs cannot be adjusted to the user's body shape and posture, limiting their comfort and applicability. Alternatively, they require manual adjustments and fail to meet the individual needs of different users for back support position and strength. Existing chairs also have complex or manual adjustments for lumbar support and backrests, failing to automatically adapt to the user's waist and back curves, potentially causing discomfort with prolonged use. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a lumbar support assembly that helps to solve the muscle tension and fatigue problems caused by prolonged sitting.

[0004] The utility model also provides a seat with the lumbar support assembly.

[0005] According to the first aspect of the present invention, the lumbar support assembly is provided on a seat, and comprises: a lumbar support body and an adjustment assembly, wherein the lumbar support body is connected to the back plate of the seat via the adjustment assembly, and the adjustment assembly comprises an adjustment member, the length of which is adjustable to adjust the angle between the lumbar support body and the back plate.

[0006] According to the lumbar support assembly of the present invention, continuous support is provided for the waist through a connecting rod mechanism, providing the user with a personalized support experience. A good sitting posture can be maintained whether at work or at rest, which helps to solve the problems of muscle tension and fatigue caused by sitting for long periods of time, and ensures the stability and durability of the lumbar support assembly.

[0007] In some embodiments, the adjustment assembly further includes: a connecting rod, the connecting rod being connected between the back plate and the lumbar support body, the lumbar support body being rotatably connected to the connecting rod, the adjustment member being located below the connecting rod, and the adjustment member being rotatably connected to the lumbar support body.

[0008] In some embodiments, a first connecting hole is formed on the connecting rod, and a second connecting hole is formed on the lumbar support body. The lumbar support body and the connecting rod are rotatably connected via a first connecting shaft passing through the first connecting hole and the second connecting hole.

[0009] In some embodiments, a third connecting hole is formed on the adjusting member, and a fourth connecting hole is formed on the lumbar support body. The lumbar support body and the adjusting member are rotatably connected via a second connecting shaft passing through the third connecting hole and the fourth connecting hole, and the adjusting member drives the lumbar support body to rotate around the first connecting shaft.

[0010] In some embodiments, the lumbar support body includes: a first lumbar support plate, the second connecting hole and the fourth connecting hole are both formed on the first lumbar support plate; a second lumbar support plate, the second lumbar support plate is arranged at an interval from the first lumbar support plate; and a fine-tuning member, the fine-tuning member is arranged between the first lumbar support plate and the second lumbar support plate.

[0011] In some embodiments, one end of the fine-adjusting member is connected to the first lumbar support plate, and the other end of the fine-adjusting member is connected to the second lumbar support plate, and the fine-adjusting member is elastically deformable.

[0012] In some embodiments, the fine-tuning member includes a plurality of fine-tuning members, and the plurality of fine-tuning members are evenly arranged between the first lumbar support plate and the second lumbar support plate.

[0013] In some embodiments, the lumbar support assembly further includes: a locking member connected to the adjusting member and used to fix the length of the adjusting member.

[0014] In some embodiments, the lumbar support body further includes: a lumbar support frame and a lumbar support mesh. A card slot is formed on the periphery of the lumbar support frame. The lumbar support mesh covers the lumbar support frame. The lumbar support mesh is connected to the lumbar support frame by being clamped in the card slot via a card strip.

[0015] The seat according to the second aspect of the present invention includes: a base assembly, which includes: a seat basin and a bottom plate, the seat basin is connected to the bottom plate and can move relatively; a back plate, the back plate is rotatably connected to the bottom plate, and the seat basin moves relative to the bottom plate to drive the back plate to rotate; the lumbar support assembly according to the above-mentioned first aspect of the present invention, the lumbar support assembly is connected to the back plate, and the back plate rotates to drive the lumbar support assembly to move.

[0016] The seat according to the present invention is provided with the lumbar support assembly of the first aspect mentioned above, and is adapted to the needs of different users from the perspective of ergonomic principles. Moreover, the seat can be adjusted to provide optimal support during use, thereby achieving adaptive support for the user's waist, improving the comfort and applicability of the seat, effectively alleviating discomfort or fatigue, and meeting the personalized needs of different users.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a seat according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Schematic cross-section of the seat shown in FIG.

[0020] Reference numerals:

[0021] 1. Lumbar support assembly;

[0022] 11. Lumbar support body; 112. First lumbar support plate; 113. Second lumbar support plate;

[0023] 2. Adjustment assembly; 21. Adjustment member; 22. Connecting rod; 23. First connecting shaft; 24. Second connecting shaft;

[0024] 3. Fine-tuning parts;

[0025] 20. Back panel;

[0026] 100, base assembly; 101, seat basin; 102, bottom plate; 103, first base connecting rod; 104, second base connecting rod; 105, base connecting rod;

[0027] 1001, first base connecting axis; 1002, second base connecting axis; 1003, third base connecting axis; 1004, fourth base connecting axis;

[0028] 1000. Seats. DETAILED DESCRIPTION

[0029] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] Reference below Figure 1 and Figure 2 The waist support assembly 1 according to the first embodiment of the present invention is described below.

[0031] like Figure 1 and Figure 2 As shown, the lumbar support assembly 1 according to the first embodiment of the present invention includes: a lumbar support body 11 and an adjustment assembly 2.

[0032] Specifically, the lumbar support assembly 1 is provided on the seat 1000 and includes a lumbar support body 11 and an adjustment assembly 2. The lumbar support body 11 is connected to the back panel 20 of the seat 1000 via the adjustment assembly 2. The adjustment assembly 2 includes an adjustment member 21, the length of which is adjustable to adjust the angle between the lumbar support body 11 and the back panel 20. It will be appreciated that the adjustment member 2 is connected to the lumbar support body 11 and the back panel 20, and that adjusting the length of the adjustment member 21 adjusts the angle of the lumbar support relative to the base assembly 100. The overall structure is simple and the design is ingenious.

[0033] According to the lumbar support assembly 1 of the embodiment of the present invention, continuous support is provided for the waist through a connecting rod mechanism, providing the user with a personalized support experience. The user can maintain a good sitting posture whether at work or at rest, which helps to reduce muscle tension and fatigue caused by sitting for a long time, and ensures the stability and durability of the lumbar support assembly 1.

[0034] In some embodiments of the present invention, Figure 2 As shown, the adjustment assembly 2 further includes a connecting rod 22, which is connected between the back plate 20 and the lumbar support body 11. The lumbar support body 11 is rotatably connected to the connecting rod 22. The adjustment member 21 is located below the connecting rod 22 and is rotatably connected to the lumbar support body 11. As a result, one end of the connecting rod 22 is connected to the lumbar support body 11, and the other end of the connecting rod 22 is connected to the back plate 20. This increases the flexibility of adjusting the angle between the lumbar support body 11 and the back plate 20, providing a wide range of personalized adjustment space, allowing users to set the most suitable sitting posture according to their physical condition and personal preferences. The good support and adaptability help reduce back discomfort and other problems that may be caused by sitting for long periods of time.

[0035] In some embodiments of the present invention, a first connecting hole is formed on the connecting rod 22, and a second connecting hole is formed on the lumbar support body 11. The lumbar support body 11 and the connecting rod 22 are rotatably connected via a first connecting shaft 23 that passes through the first connecting hole and the second connecting hole. It will be understood that the rotatable connection between the lumbar support body 11 and the connecting rod 22 via the first connecting shaft 23 can provide the user with continuous and comfortable back support, good stability, and high safety.

[0036] In some embodiments of the present invention, a third connecting hole is formed on the adjusting member 21, and a fourth connecting hole is formed on the lumbar support body 11. The lumbar support body 11 and the adjusting member 21 are rotatably connected via a second connecting shaft 24 that passes through the third and fourth connecting holes. The adjusting member 21 drives the lumbar support body 11 to rotate about the first connecting shaft 23. It will be understood that the rotatable connection between the lumbar support body 11 and the adjusting member 21 is achieved via the second connecting shaft 24. The adjusting member 21 directly acts on the lumbar support body 11, thereby achieving fine adjustment of the lumbar support angle. The structure is stable, ensuring reliability for long-term use.

[0037] In some embodiments of the present invention, the lumbar support body 11 includes: a first lumbar support plate 112, with the second and fourth connection holes both formed in the first lumbar support plate 112; a second lumbar support plate 113, spaced apart from the first lumbar support plate 112; and a fine-tuning member 3, disposed between the first and second lumbar support plates 112, 113. Thus, the fine-tuning member 3 enables finer angle adjustment, providing a more comfortable experience for the user and further enhancing the functionality and comfort of the seat 1000.

[0038] Optionally, the fine-tuning member 3 may be in the following form:

[0039] Spring-loaded mechanism: Provides slight cushioning and support through springs or other elastic elements, allowing the backrest to move freely within a certain range and automatically adjust to the user's weight and posture;

[0040] Rack and pinion mechanism: uses the meshing relationship between gears and racks to precisely control angle changes, which can be operated by users through external controllers such as knobs or handles;

[0041] Hydraulic or gas lever: Similar to the height adjustment on an office chair, this uses hydraulic or gas pressure to smoothly change the backrest angle and usually has a locking mechanism to maintain the set position.

[0042] Linkage: Uses a series of links to transmit force and motion to achieve fine adjustment of the backrest angle.

[0043] Here preferably, the fine-tuning member 3 is a compression spring.

[0044] Furthermore, one end of the fine-tuning member 3 is connected to the first lumbar support plate 112, and the other end of the fine-tuning member 3 is connected to the second lumbar support plate 113. The fine-tuning member 3 is elastically deformable. It is understood that when a user sits down and leans on the lumbar support, the pressure on the waist causes the fine-tuning member 3 to undergo elastic deformation, which can be stretching, compression, or bending. Due to the elastic properties of the fine-tuning member 3, it can automatically adjust the distance or angle between the two lumbar support plates in response to the user's movements. Thus, the elastic deformation ability of the fine-tuning member 3 enables the lumbar support body 11 to automatically adapt to the needs of different body shapes and postures. The fine-tuning member 3 can also absorb some of the impact force, reducing the pressure on the spine from sitting for long periods of time.

[0045] Furthermore, if Figure 1 As shown, the fine-tuning members 3 include multiple ones, which are evenly arranged between the first lumbar support plate 112 and the second lumbar support plate 113. This ensures that the entire lumbar area is evenly supported, avoids the localized pressure concentration that may be caused by a single fine-tuning member 3, and improves overall comfort. Through the synergistic effect of multiple elastic points, the lumbar support can better fit the user's lumbar curve and provide more natural support.

[0046] In some embodiments of the present invention, the lumbar support assembly 1 further includes a locking member connected to the adjusting member 21 for fixing the length of the adjusting member 21. It is understood that once the user has adjusted the lumbar support to a desired angle, the locking member locks the current length of the adjusting member 21 to prevent changes in the lumbar support angle. The locking member ensures the stability of the lumbar support assembly 1 in the set position, preventing angle changes caused by external forces or prolonged use. Furthermore, the locking member is simple to operate, allowing the user to quickly adjust and lock the position.

[0047] In some embodiments of the present invention, the lumbar support body 11 further comprises a lumbar support frame and a lumbar support mesh. The lumbar support frame is provided with a slot formed around its periphery, and the lumbar support mesh wraps around the lumbar support frame. The lumbar support mesh is secured to the lumbar support frame via a clip positioned within the slot. This provides a simple connection, good ventilation, high comfort, long service life, and ease of cleaning and maintenance.

[0048] The seat 1000 according to the second embodiment of the present invention comprises: a base assembly 100, a backboard 20 and a lumbar support assembly 1 according to the first embodiment of the present invention.

[0049] Specifically, the base assembly 100 includes a seat basin 101 and a base plate 102. The seat basin 101 and base plate 102 are connected and movable relative to each other. The back plate 20 is rotatably connected to the base plate 102. The seat basin 101 moves relative to the base plate 102, thereby driving the back plate 20 to rotate. The lumbar support assembly 1 is connected to the back plate 20, and the rotation of the back plate 20 drives the movement of the lumbar support assembly 1. When a user sits on the chair, due to the body's own weight, the seat basin 101 moves downward and forward relative to the base plate 102, driving the back plate 20 forward, and thus driving the lumbar support assembly 1 forward. This enables the overall forward movement of the lumbar support assembly 1, which can be advanced to different positions, realizing the adaptive function of the lumbar support.

[0050] According to the seat 1000 of the embodiment of the present invention, by providing the lumbar support assembly 1 of the above-mentioned first embodiment, it is adapted to the needs of different users based on ergonomic principles, and can be adjusted to provide optimal support during use, thereby achieving adaptive support of the user's waist by the seat 1000, improving the comfort and applicability of the seat 1000, being able to effectively relieve discomfort or fatigue, and meeting the personalized needs of different users.

[0051] Furthermore, the seat basin 101 is connected to the back panel 20 of the seat 1000. The seat basin 101 is connected to the bottom panel 102 and can move relative to each other. The base connecting rod assembly is provided between the seat basin 101 and the bottom panel 102, and the bottom panel 102 and the base connecting rod assembly are rotatably connected. The seat basin 101 is rotatably connected to the base connecting rod assembly. The seat basin 101 is subjected to a downward force to drive the seat basin 101 to move relative to the bottom panel 102. When a user sits on the seat, due to the body's own weight, the seat basin 101 moves downward and forward relative to the bottom panel 102, driving the back panel 20 to move forward.

[0052] Therefore, when the seat basin 101 is subjected to a downward force, it moves forward, ensuring that the back panel 20 reaches a comfortable position for the user, realizing adaptive support of the back or waist of the user by the backrest or lumbar support, improving the comfort and applicability of the seat 1000, and being able to effectively relieve discomfort or fatigue and meet the personalized needs of different users.

[0053] In some embodiments, the base link assembly includes: a first base link 103, which is connected between the bottom plate 102 and the seat basin 101; and a second base link 104, which is spaced apart from the first base link 103 and connected between the bottom plate 102 and the seat basin 101. As shown in the figure, the first base link 103 and the second base link 104 are arranged in parallel and spaced apart, ensuring a good user experience and safety. The good support and adaptability help reduce back discomfort and other problems that may be caused by long periods of sitting.

[0054] Furthermore, a first base connection hole is formed at one end of the first base connecting rod 103, and a second base connection hole is formed at the seat bowl 101. The first base connecting rod 103 and the seat bowl 101 are rotatably connected by a first base connecting shaft 1001 that passes through the first and second base connection holes. A third base connection hole is formed at the other end of the first base connecting rod 103, and a fourth base connection hole is formed at the bottom plate 102. The first base connecting rod 103 and the bottom plate 102 are rotatably connected by the second base connecting shaft 1002 that passes through the third and fourth base connection holes. It can be understood that the rotatable connection between the first base connecting rod 103 and the seat bowl 101 is achieved by the first base connecting shaft 1001, and the rotatable connection between the first base connecting rod 103 and the bottom plate 102 is achieved by the second base connecting shaft 1002, so that the seat bowl 101 can be adjusted in angle according to the user's actions or external forces, thereby maintaining the consistency of the overall design and the coordination of functions.

[0055] Furthermore, a fifth base connection hole is formed at one end of the second base connecting rod 104, and a sixth base connection hole is formed at the seat bowl 101. The second base connecting rod 104 and the seat bowl 101 are rotatably connected via a third base connection shaft 1003 that passes through the fifth and sixth base connection holes. A seventh base connection hole is formed at the other end of the second base connecting rod 104, and an eighth base connection hole is formed at the bottom plate 102. The second base connecting rod 104 and the bottom plate 102 are rotatably connected via a fourth base connection shaft 1004 that passes through the seventh and eighth base connection holes. It can be understood that the rotatable connection between the second base connecting rod 104 and the seat bowl 101 is achieved via the third base connection shaft 1003, and the rotatable connection between the second base connecting rod 104 and the bottom plate 102 is achieved via the fourth base connection shaft 1004. This enhances the stability and safety of the base connecting rod assembly, reduces imbalance caused by unilateral force, improves load-bearing capacity, and increases the flexibility of the base assembly 100.

[0056] In some embodiments, the base linkage assembly further includes a base connecting rod 105, one end of which is connected to the back panel 20, and the other end of which is connected to the seat basin 101. This further enhances the overall stability and support of the seat 1000, and better coordinates the relative movement between the back panel 20 and the seat basin 101, resulting in high flexibility and good durability.

[0057] In some embodiments, a first base through-hole is formed at one end of the base connecting rod 105, and a back plate 20 shaft hole is formed at the back plate 20. The base connecting rod 105 and the back plate 20 are rotatably connected by a fifth base connecting shaft that penetrates the first base through-hole and the back plate 20 shaft hole. A second base through-hole is formed at the other end of the base connecting rod 105, and the base is formed with a base shaft hole. The base connecting rod 105 and the base are rotatably connected by a sixth base connecting shaft that penetrates the second base through-hole and the base shaft hole. It is understandable that the rotatable connection between the base connecting rod 105 and the back plate 20 is achieved by the fifth base connecting shaft, and the rotatable connection between the base connecting rod 105 and the base is achieved by the sixth base connecting shaft. This can adapt to the user's back or waist movement, support a variety of sitting postures and dynamic adjustments, and has good stability and durability.

[0058] Optionally, in order to further improve the user experience, a damping device or a spring is added to the connection to facilitate control of the rotation speed and smoothness.

[0059] In other embodiments, the base shaft hole and the second base connecting hole are the same, thereby reducing the number of parts, lowering production costs, and facilitating assembly and maintenance.

[0060] In some embodiments, the base assembly 100 further includes a reset member disposed on the bottom plate 102 for resetting the seat basin 101. This not only improves the convenience of the chair but also ensures that the user can quickly achieve a comfortable sitting position in different usage scenarios, thereby maintaining optimal body posture and comfort.

[0061] Optionally, the reset element has the following reset modes:

[0062] Spring-type reset: Through the built-in spring mechanism, when the user releases the locking mechanism, the spring will automatically pull the lumbar support body 11 back to the preset position;

[0063] Pneumatic rod reset: Through the compression and extension of the pneumatic rod, a smooth reset action is provided. The user only needs to gently push or pull the lumbar support, and the pneumatic rod will assist it to return to the preset position;

[0064] Electric reset: Driven by an electric motor, the user can start the reset function through the control panel or remote control to achieve a fully automated reset process.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0067] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0069] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lumbar support assembly, characterized in that: The lumbar support assembly is provided on a seat, and includes a lumbar support body and an adjustment assembly. The lumbar support body is connected to the back plate of the seat through the adjustment assembly. The adjustment assembly includes an adjustment member, and the length of the adjustment member is adjustable to adjust the angle between the lumbar support body and the back plate. The adjustment assembly further includes: a connecting rod, the connecting rod being connected between the back plate and the lumbar support body, the lumbar support body being rotatably connected to the connecting rod, the adjusting member being located below the connecting rod, the adjusting member being rotatably connected to the lumbar support body, the connecting rod being formed with a first connecting hole, the lumbar support body being formed with a second connecting hole, the lumbar support body and the connecting rod being rotatably connected via a first connecting shaft passing through the first connecting hole and the second connecting hole, the adjusting member being formed with a third connecting hole, the lumbar support body being rotatably connected to the adjusting member via a second connecting shaft passing through the third connecting hole and the fourth connecting hole, and the adjusting member driving the lumbar support body to rotate around the first connecting hole; The lumbar support body comprises: a first lumbar support plate, wherein the second connection hole and the fourth connection hole are both formed on the first lumbar support plate; A second lumbar support plate, the second lumbar support plate is spaced apart from the first lumbar support plate, A fine-tuning member is provided between the first lumbar support plate and the second lumbar support plate.

2. The lumbar support assembly according to claim 1, wherein: One end of the fine-adjusting member is connected to the first waist supporting plate, and the other end of the fine-adjusting member is connected to the second waist supporting plate. The fine-adjusting member is elastically deformable.

3. The lumbar support assembly according to claim 2, wherein: The fine-tuning parts include a plurality of them, and the plurality of fine-tuning parts are evenly arranged between the first lumbar support plate and the second lumbar support plate.

4. The lumbar support assembly according to any one of claims 1 to 3, characterized in that: Also includes: A locking member is connected to the adjusting member and is used to fix the length of the adjusting member.

5. The lumbar support assembly according to any one of claims 1 to 3, characterized in that: The lumbar support body further comprises: a lumbar support frame and a lumbar support mesh. A card slot is formed on the periphery of the lumbar support frame. The lumbar support mesh covers the lumbar support frame. The lumbar support mesh is connected to the lumbar support frame by being clamped in the card slot via a card strip.

6. A seat, characterized in that: include: A base assembly, the base assembly comprising: a seat basin and a bottom plate, the seat basin being connected to the bottom plate and being movable relative to the bottom plate; a back plate rotatably connected to the bottom plate, wherein the seat basin moves relative to the bottom plate to drive the back plate to rotate; The lumbar support assembly according to any one of claims 1 to 5, wherein the lumbar support assembly is connected to the back plate, and the back plate rotates to drive the lumbar support assembly to move.

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