Waist support assembly and seat

Abstract

The utility model discloses a waist support assembly and a seat. The waist support assembly comprises a waist support, a bracket, a movable seat, a swinging seat and a connecting seat, the waist support is fixedly connected to the movable seat, the movable seat is installed on the swing seat in a sliding mode so that the movable seat can move up and down relative to the swing seat, a first elastic element is arranged between the swing seat and the movable seat, and the first elastic element is used for applying upward elastic stress to the movable seat; the connecting seat is mounted on the bracket; the swing seat comprises a rotating end and a free end opposite to the rotating end, the rotating end is pivoted to the connecting seat so that the swing seat can swing back and forth relative to the connecting seat, a second elastic element is arranged between the free end of the swing seat and the connecting seat, and the second elastic element is used for applying forward elastic stress to the swing seat. According to the utility model, the application range of the seat is enlarged, and the comfort of the seat is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, specifically to a lumbar support component and a seat. Background Technology

[0002] To prevent user fatigue caused by unsupported lower back during chair use, some existing office chairs, study chairs, and gaming chairs are equipped with lumbar support components. These components are generally installed on the backrest support and are used to provide support for the user's lower back at the bottom of the backrest. In the current technology, the lumbar support component is relatively fixed to the backrest. When the user changes sitting posture, it is difficult for the support surface of the lumbar support component to fit well with the user's lower back. In addition, the fixed position of the lumbar support component is also difficult to adapt to users of different body types. Utility Model Content

[0003] The purpose of this utility model is to provide a lumbar support component and a seat that can adapt to different sitting postures and body types of users, so that the support surface of the lumbar support component can fit well with the user's waist.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The lumbar support assembly includes a lumbar support, a bracket, a movable seat, a swing seat, and a connecting seat;

[0006] The lumbar support is fixedly connected to the movable seat, which is slidably mounted on the swing seat so that the movable seat can move up and down relative to the swing seat. A first elastic element is provided between the swing seat and the movable seat, which is used to apply an upward elastic stress to the movable seat.

[0007] The connector is mounted on the bracket;

[0008] The swing seat includes a rotating end and a free end opposite to the rotating end. The rotating end is pivotally connected to the connecting seat so that the swing seat can swing back and forth relative to the connecting seat. A second elastic element is provided between the free end of the swing seat and the connecting seat. The second elastic element is used to apply a forward elastic stress to the swing seat.

[0009] Preferably, the rotating end of the swing seat is located at the bottom of the swing seat, and a rotating shaft is provided on the rotating end of the swing seat. The rotating shaft passes through the connecting seat to pivotally connect the rotating end to the connecting seat. The free end of the swing seat is located at the top of the swing seat, and two front-to-back staggered limiting plates are provided on the free end of the swing seat. A baffle is provided on the connecting seat between the two limiting plates, and a second elastic element is placed between the baffle and the limiting plate located on the front side.

[0010] Preferably, the second elastic element is a spring clamped between the baffle and the limiting plate located on the front side, and the baffle is provided with a mounting seat that extends forward and passes through the spring.

[0011] Preferably, the movable seat is provided with a vertically extending slide groove, and the swing seat is provided with a slidable protrusion embedded in the slide groove. The first elastic element is a tension spring, with the upper end of the tension spring connected to the protrusion and the lower end connected to the bottom of the movable seat.

[0012] Preferably, the protrusion is provided with a groove extending to the bottom of the protrusion, the top of the groove is provided with an upper connecting post, the bottom of the movable seat is provided with a lower connecting post, the tension spring is embedded in the groove, the upper end of the tension spring is attached to the upper connecting post, and the lower end is attached to the lower connecting post.

[0013] Preferably, the portion of the movable seat located on both sides of the slide groove forms a guide rail, and a cover plate is fixedly connected to the protrusion of the swing seat. The two sides of the protrusion, the cover plate, and the swing seat respectively form a guide groove, and the two guide rails are slidably embedded in the two guide grooves.

[0014] Preferably, it includes two connecting seats, two swing seats, and two movable seats; the lumbar support includes two vertical beams located on both sides of it, a connecting frame is installed on the bracket, the connecting frame is in an inverted V shape, the top of the connecting frame is connected to the bracket, the two connecting seats are respectively connected to the bottom sides of the connecting frame, and the two movable seats are respectively fixed to the inner sides of the two vertical beams.

[0015] Preferably, a connecting plate is provided on the inner side of the vertical beam, and the movable seat is placed on the front side of the connecting plate and fixed to the connecting plate in a detachable manner.

[0016] Preferably, the lumbar support includes a bottom crossbeam connected between the bottoms of the two vertical beams, and a massage mechanism mounted on the lumbar support is disposed between the connecting frame and the bottom crossbeam.

[0017] Seat, including the aforementioned lumbar support assembly.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The lumbar support of this invention is movable in both the vertical and horizontal directions as well as the front and back directions, allowing it to adapt to the user's waist position and fit better, providing better support for the user's waist. When the user is in different sitting positions or has different body types, the lumbar support can adaptively move to the optimal support position, increasing the applicability of the chair and improving its comfort. Attached Figure Description

[0020] Figure 1 This is an installation diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 for Figure 1 Assembly diagram of the swing seat and the movable seat;

[0023] Figure 4 This is a schematic diagram of one usage state of the present invention;

[0024] Figure 5 This is a cross-sectional view of the present invention.

[0025] Among them: 10, waist support; 11, vertical beam; 12, connecting plate; 13, bottom crossbeam; 20, bracket; 21, connecting frame; 30, movable seat; 31, cover plate; 32, slide groove; 33, guide rail; 34, lower connecting column; 40, swing seat; 401, rotating end; 402, free end; 41, rotating shaft; 42, first limiting plate; 43, second limiting plate; 44, protrusion; 45, groove; 46, upper connecting column; 50, connecting seat; 51, baffle; 52, mounting seat; 60, tension spring; 70, spring. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] like Figure 1 , 2 As shown in Figures 3, 4, and 5, a lumbar support assembly of this utility model includes a lumbar support 10, a bracket 20, a movable seat 30, a swing seat 40, and a connecting seat 50. The lumbar support 10 is fixed on the movable seat 30, and the movable seat 30 is slidably mounted on the swing seat 40, so that the movable seat 30 can move in the vertical direction relative to the swing seat 40, thereby allowing the lumbar support 10 to move in the vertical direction with the movable seat 30. A first elastic element is provided between the swing seat 40 and the movable seat 30, which is used to apply an upward elastic stress to the movable seat 30.

[0030] The connecting seat 50 is mounted on the bracket 20, which can be the main support component of the seat back. The swing seat 40 includes a rotating end 401 and a free end 402 opposite to the rotating end 401. The rotating end 401 is located at the bottom of the swing seat 40, and the free end 402 is located at the top of the swing seat 40. The rotating end 401 is pivotally connected to the connecting seat 50, so that the swing seat 40 can swing back and forth relative to the connecting seat 50. A second elastic element is provided between the free end 402 of the swing seat 40 and the connecting seat 50. The second elastic element is used to apply a forward elastic stress to the swing seat 40.

[0031] When the lumbar support assembly of this utility model is in use, the user's waist comes into contact with the lumbar support 10 and applies downward and backward pressure to the lumbar support 10. When the lumbar support 10 is pressed down by the user's waist, the movable seat 30 moves downward relative to the swing seat 40. As the deformation of the first elastic element increases, the upward elastic stress applied by the first elastic element to the movable seat 30 increases. Eventually, the elastic stress of the first elastic element and the downward pressure from the user's waist on the lumbar support 10 tend to balance. When the lumbar support 10 is pressed backward by the user's waist, the swing seat 40 swings backward, causing the deformation of the second elastic element to increase. The forward elastic stress applied by the second elastic element to the swing seat 40 increases. Eventually, the elastic stress of the second elastic element and the backward pressure from the user's waist on the lumbar support 10 tend to balance.

[0032] In this way, the lumbar support 10 can adapt to the user's waist position and fit the user's waist better in the vertical and horizontal directions and provide better support for the user's waist. When the user is in different sitting positions or different body types, the lumbar support 10 can adapt to move to the optimal support position, which increases the applicability of the seat and improves the comfort of the seat.

[0033] In a preferred embodiment, a rotating shaft 41 is provided at the rotating end 401 of the swing seat 40. The rotating shaft 41 extends laterally and passes through the connecting seat 50, thereby pivotally connecting the rotating end 401 of the swing seat 40 to the connecting seat 50. A first limiting plate 42 and a second limiting plate 43 are provided at the free end 402 of the swing seat 40. The first limiting plate 42 is located in front of the second limiting plate 43, and the two are offset by a certain distance in the front-back direction. A baffle 51 is provided on the connecting seat 50. The baffle 51 is located at... Between the first limiting plate 42 and the second limiting plate 43, the second elastic element is placed between the baffle 51 and the first limiting plate 42. When the swing seat 40 swings backward, the first limiting plate 42 swings backward and together with the baffle 51 presses the second elastic element. When the seat is not in use, the elastic stress of the second elastic element causes the second limiting plate 43 to abut against the rear side of the baffle 51. The distance between the first limiting plate 42 and the second limiting plate 43 can change the amplitude of the swing seat 40 swinging back and forth.

[0034] In other embodiments, two staggered limiting structures can be provided on the connecting seat 50, and the free end 402 of the swing seat 40 can be placed between the two limiting structures of the connecting seat 50.

[0035] The second elastic element is a spring 70 sandwiched between the baffle 51 and the first limiting plate 42. The baffle 51 is provided with a mounting seat 52 that extends forward and passes through the spring 70. The mounting seat 52 is used to limit the spring 70 and prevent the spring 70 from disengaging from the connecting seat 50. In other embodiments, the second elastic element can be an elastic rubber block, spring sheet, etc.

[0036] It should be noted that in other embodiments, the rotating end 401 of the swing seat 40 may also be located at the top of the swing seat 40, and the free end 402 may be located at the bottom of the swing seat 40, which can also realize the back-and-forth swing of the swing seat 40 relative to the connecting seat 50.

[0037] The movable seat 30 is provided with a vertically extending groove 32, and the swing seat 40 is provided with a sliding protrusion 44 embedded in the groove 32. The first elastic element is a tension spring 60, with the upper end of the tension spring 60 connected to the protrusion 44 and the lower end connected to the bottom of the movable seat 30.

[0038] For ease of assembly, a groove 45 extending to the bottom of the protrusion 44 is provided on the protrusion 44. An upper connecting post 46 is provided at the top of the groove 45, and a lower connecting post 34 is provided at the bottom of the movable seat 30. The tension spring 60 is placed in the groove 45, with the upper end of the tension spring 60 hooked on the upper connecting post 46 and the lower end hooked on the lower connecting post 34.

[0039] The portions of the movable seat 30 located on both sides of the slide groove 32 form guide rails 33 respectively. A cover plate 31 is fixedly connected to the protrusion 44 of the swing seat 40. The two sides of the protrusion 44, the cover plate 31, and the swing seat 40 respectively form a guide groove. The two guide rails 33 on both sides of the slide groove 32 are slidably embedded in the two guide grooves. During assembly, the swing seat 40 and the cover plate 31 are placed on both sides of the movable seat 30, the protrusion 44 is embedded in the slide groove 32, and then the cover plate 31 and the protrusion 44 are fixed together with screws. In this way, the movable seat 30 is slidably mounted on the swing seat 40, so that the two only have the freedom of vertical movement and prevent them from separating laterally.

[0040] The lumbar support assembly of this utility model includes two connecting seats 50, two swing seats 40, and two movable seats 30. The lumbar support 10 includes two vertical beams 11 located on both sides of the beams. A connecting frame 21 is installed on the bracket 20. The connecting frame 21 is inverted V-shaped. The top of the connecting frame 21 is connected to the bracket 20. The two connecting seats 50 are respectively connected to the bottom sides of the connecting frame 21. The two movable seats 30 are respectively fixed to the two vertical beams 11 of the lumbar support 10. Thus, on both sides of the lumbar support 10, a set of movable seats 30, swing seats 40, and connecting seats 50 respectively form a mechanism that enables the lumbar support 10 to swing back and forth and move up and down, thereby making the lumbar support 10 more stable.

[0041] A connecting plate 12 is provided on the inner side of the vertical beam 11. The movable seat 30 is placed on the front side of the connecting plate 12 and is fixed to the connecting plate 12 by bolt connection or other detachable connection. During assembly, the swing seat 40, the movable seat 30 and the connecting seat 50 can be connected into a component and then the component can be fixed to the connecting plate 12.

[0042] The lumbar support 10 also includes a bottom crossbeam 13 connected between the bottoms of the two vertical beams 11. A massage mechanism is provided between the connecting frame 21 and the bottom crossbeam 13, and the massage mechanism is installed on the lumbar support 10.

[0043] The seat of this utility model includes the lumbar support component described above. The other structures of the seat are the same as those in the prior art and will not be described in detail here.

[0044] Finally, it should be noted that the above embodiments are only optional embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A lumbar support assembly, characterized in that, Includes lumbar support, bracket, movable seat, swing seat, and connecting seat; The lumbar support is fixedly connected to the movable seat, which is slidably mounted on the swing seat so that the movable seat can move up and down relative to the swing seat. A first elastic element is provided between the swing seat and the movable seat, which is used to apply an upward elastic stress to the movable seat. The connector is mounted on the bracket; The swing seat includes a rotating end and a free end opposite to the rotating end. The rotating end is pivotally connected to the connecting seat so that the swing seat can swing back and forth relative to the connecting seat. A second elastic element is provided between the free end of the swing seat and the connecting seat. The second elastic element is used to apply a forward elastic stress to the swing seat. The rotating end of the swing seat is located at the bottom of the swing seat. A rotating shaft is provided on the rotating end of the swing seat. The rotating shaft passes through the connecting seat to pivotally connect the rotating end to the connecting seat. The free end of the swing seat is located at the top of the swing seat. Two limiting plates that are staggered front and back are provided on the free end of the swing seat. A baffle is provided on the connecting seat between the two limiting plates. The second elastic element is placed between the baffle and the limiting plate located on the front side.

2. The lumbar support assembly as described in claim 1, characterized in that, The second elastic element is a spring that is clamped between the baffle and the limiting plate located on the front side. The baffle is provided with a mounting seat that extends forward and passes through the spring.

3. The lumbar support assembly as described in claim 1, characterized in that, The movable seat is provided with a vertically extending slide groove, and the swing seat is provided with a sliding protrusion embedded in the slide groove. The first elastic element is a tension spring, with the upper end of the tension spring connected to the protrusion and the lower end connected to the bottom of the movable seat.

4. The lumbar support assembly as described in claim 3, characterized in that, The protrusion has a groove extending to the bottom of the protrusion. The top of the groove has an upper connecting post, and the bottom of the movable seat has a lower connecting post. The tension spring is embedded in the groove, with the upper end of the tension spring attached to the upper connecting post and the lower end attached to the lower connecting post.

5. The lumbar support assembly as described in claim 4, characterized in that, The portion of the movable seat located on both sides of the slide groove forms a guide rail. A cover plate is fixedly connected to the protrusion of the swing seat. The two sides of the protrusion, the cover plate, and the swing seat form a guide groove, and the two guide rails are slidably embedded in the two guide grooves.

6. The lumbar support assembly as claimed in claim 1, characterized in that, It includes two connecting seats, two swing seats, and two movable seats; the lumbar support includes two vertical beams located on both sides of it, and a connecting frame is installed on the bracket. The connecting frame is in an inverted V shape, with the top of the connecting frame connected to the bracket. The two connecting seats are respectively connected to the bottom sides of the connecting frame, and the two movable seats are respectively fixed to the inner sides of the two vertical beams.

7. The lumbar support assembly as described in claim 6, characterized in that, A connecting plate is provided on the inner side of the vertical beam, and the movable seat is placed on the front side of the connecting plate and fixed to the connecting plate in a detachable manner.

8. The lumbar support assembly as described in claim 6, characterized in that, The lumbar support includes a bottom crossbeam connected between the bottoms of two vertical beams, and a massage mechanism mounted on the lumbar support is provided between the connecting frame and the bottom crossbeam.

9. A seat, characterized in that, Includes the lumbar support assembly as described in any one of claims 1-8.

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