Split type self-adaptive seat waist rest and seat

Abstract

The split type self-adaptive seat waist rest comprises a split type seat backrest, a split type supporting arm and an elastic adjusting reset mechanism, the split type seat backrest comprises a left backrest and a right backrest, and the split type supporting arm comprises a left supporting part and a right supporting part; the elastic adjusting and resetting mechanism comprises a left elastic adjusting and resetting mechanism and a right elastic adjusting and resetting mechanism, the left backrest is fixedly connected with the left supporting part through the left elastic adjusting and resetting mechanism, and the right backrest is fixedly connected with the right supporting part through the right elastic adjusting and resetting mechanism; and the left backrest and the right backrest can adaptively deflect and reset relative to the left supporting part and the right supporting part respectively. According to the seat, based on the adjusting structure of the waist rest, by changing the adjusting structure of the waist rest and changing the assembling and connecting mode, split type self-adaptive adjustment of the waist rest can be achieved, and automatic resetting can be achieved.

Description

Technical Field

[0001] The invention relates to a split-type adaptive seat lumbar support and a seat, belonging to the technical field of seat components and seats. Background Art

[0002] As furniture closely related to human life, chairs bring convenience to human work and meet the needs of daily desk work. The lumbar support of existing chairs is either fixed and cannot be adjusted, or needs to be manually adjusted to achieve a position suitable for the back posture. However, during the adjustment process of the existing lumbar support, the user's back is away from the lumbar support (the reason is that the components that drive the lumbar support to rotate mostly use torsion springs that cannot support the weight of the back). Therefore, the user can only rely on repeated adjustments and repeated leaning. This method is extremely inconvenient and often cannot be adjusted to the most comfortable position. After adjustment, the lumbar support posture is fixed and will not change with the user's sitting posture, resulting in discomfort for long-term leaning. In addition, the existing lumbar support adjustment often changes the posture by rotating the hinge angle of the lumbar support and the seat cushion. When the adjustment range is large, it seriously affects the user's experience.

[0003] The Chinese utility model patent with authorization announcement date of July 12, 2022 and authorization announcement number CN216932462U discloses a self-adhering back-chasing lumbar support, including a support frame, a lumbar support board, and a support rod. The upper end of the support rod is hinged with an upper hinged accessory, one end of the upper hinged accessory is fixed to the middle part of the support frame, and the lower end of the support rod is hinged with a lower hinged accessory. The lumbar support board is fixed to the lower hinged accessory by bolts, and a drive assembly is hinged on the support frame, and one end of the drive assembly is hinged to the support rod through a hinge column. The utility model drives the pneumatic support rod (or hydraulic telescopic rod or electric telescopic rod) to move through a switch and drives the support rod to rotate around its upper end hinge point. Since the support rod has two parts that will ensure that the lumbar support board moves forward at an unchanged elevation angle under the action of reverse torsion, the lumbar support board can always be close to the user's waist and back, providing stable support for it and helping it to maintain a good sitting posture. The utility model still has the following deficiencies: its structure is complex, and only two supporting rods can ensure that the lumbar support plate moves forward at a constant elevation angle under the action of reverse twisting, so that the lumbar support plate can always be close to the user's waist and back, providing a stable support force and helping the user to maintain a good sitting posture, and it is unable to achieve a split-type adaptive adjustment function, that is, it is unable to achieve the adjustment of the left and right backrests according to the needs of use. The present invention aims to solve this technical problem by changing the adjustment structure of the lumbar support and changing the assembly connection method, so as to achieve split-type adaptive adjustment of the lumbar support and automatic reset. Summary of the invention

[0004] One of the purposes of the present invention is to solve the deficiencies of the prior art and to provide a lumbar support that can realize split-type adaptive adjustment and automatic resetting.

[0005] The second object of the present invention is to provide a seat equipped with the lumbar support of the seat of the present invention. Based on the adjustment structure of the lumbar support, the seat changes the adjustment structure of the lumbar support and changes the assembly connection method to achieve split-type adaptive adjustment of the lumbar support and automatic reset.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A split adaptive seat lumbar support comprises a split seat backrest, a split support arm and an elastic adjustment and reset mechanism, wherein the split seat backrest comprises a left backrest and a right backrest, the split support arm comprises a left support portion and a right support portion, the elastic adjustment and reset mechanism comprises a left elastic adjustment and reset mechanism and a right elastic adjustment and reset mechanism, the left backrest is fixedly connected to the left support portion via the left elastic adjustment and reset mechanism, the right backrest is fixedly connected to the right support portion via the right elastic adjustment and reset mechanism, and the left backrest and the right backrest can adaptively deflect and reset relative to the left support portion and the right support portion, respectively.

[0008] The present invention, by providing a split seat backrest, a split support arm and an elastic adjustment and reset mechanism, changes the adjustment structure of the lumbar support, changes the assembly connection method, and realizes that the lumbar support can be split and adaptively adjusted, and can be automatically reset, that is, the left and right backrests can be adjusted and automatically reset according to the needs of use. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can be independently changed with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous, that is, the adjustment angle is arbitrary. When the adjustment range is large, there is no interference with each other, and it will not affect the user's experience. It is also automatically reset when reset, and can be achieved without additional operation.

[0009] Preferably, the left backrest and the right backrest both include a backrest seat and a backrest body, the backrest body is fixed to the backrest seat, and the backrest seat is provided with a fixing portion assembled with an elastic adjustment reset mechanism. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment ranges of the left and right lumbar supports can be asynchronous and non-interfering.

[0010] Preferably, the split support arm is Y-shaped, including a left support arm and a right support arm, and the main parts of the left and right support arms are integrally formed or separately formed and then fixed by a fixing piece.

[0011] Preferably, the main parts of the left and right support arms are separately formed and fixed in a detachable manner by at least one pair of connecting plates. The design of the split support arm is matched with the split lumbar support, which is assembled independently. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can be changed independently with the user's sitting posture, thereby improving the comfort of leaning for a long time, and the independent adjustment range of the left and right lumbar supports can be asynchronous and non-interfering.

[0012] Preferably, the left elastic adjustment reset mechanism and the right elastic adjustment reset mechanism both include an elastic adjustment reset member and a base, the base is fixed to the left support portion and the right support portion, one end of the elastic adjustment reset member is fixed to the base, and the other end is fixed to the fixed portion of the backrest seat, and the elastic adjustment reset member adopts a structural member including an elastic reset spring. The design of the split elastic adjustment reset mechanism cooperates with the split lumbar support and the support arm, which are assembled independently. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous and non-interfering.

[0013] Preferably, the base is fixed to the left supporting part and the right supporting part via a detachable structure, and the base can be axially adjusted upward and downward relative to the left supporting part and the right supporting part.

[0014] Preferably, the base is fixed to the left supporting part and the right supporting part via a screw-connected detachable structure, and the base is provided with a shielding cover for hiding the screw-connected detachable structure.

[0015] A seat comprises a seat body and a lumbar support structure, adopting the split-type adaptive seat lumbar support described in the present invention, wherein a frame fixing piece is fixedly arranged at the lower end of the split support arm, and the split support arm is fixedly connected to the seat body through the frame fixing piece.

[0016] The beneficial effects of the present invention are as follows: the present invention, by providing a split seat back, a split support arm and an elastic adjustment and reset mechanism, changes the adjustment structure of the lumbar support, changes the assembly connection method, and realizes that the lumbar support can be split and adaptively adjusted, and can be automatically reset, that is, the left and right backrests can be adjusted and automatically reset according to the needs of use. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous, that is, the adjustment angle is arbitrary. When the adjustment range is large, there is no interference with each other, and it will not affect the user's experience. It is also automatically reset when reset, and can be achieved without additional operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the present invention.

[0021] The markings in the accompanying drawings are described as follows: 1. Split backrest, 2. Split support arm, 3. Elastic reset adjustment structure, 4. Connecting plate, 5. Elastic reset adjustment member, 6. Base, 7. Shielding cover. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] Example: Figure 1-3 As shown, a split adaptive seat lumbar support comprises a split seat back 1, a split support arm 2 and an elastic adjustment reset mechanism 3, wherein the split seat back 1 comprises a left backrest and a right backrest, the split support arm 2 comprises a left support portion and a right support portion, the elastic adjustment reset mechanism 3 comprises a left elastic adjustment reset mechanism and a right elastic adjustment reset mechanism, the left backrest is fixedly connected to the left support portion via the left elastic adjustment reset mechanism, the right backrest is fixedly connected to the right support portion via the right elastic adjustment reset mechanism, and the left backrest and the right backrest can adaptively deflect and reset relative to the left support portion and the right support portion, respectively.

[0024] The present invention, by providing a split seat back 1, a split support arm 2 and an elastic adjustment and reset mechanism 3, changes the adjustment structure of the lumbar support, changes the assembly connection mode, and realizes that the lumbar support can be split and adaptively adjusted, and can be automatically reset, that is, the left and right backrests can be adjusted and automatically reset according to the needs of use. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can be independently changed with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous, that is, the adjustment angle is arbitrary. When the adjustment range is large, there is no interference with each other, and it will not affect the user's experience. It is also automatically reset when reset, and can be achieved without additional operation.

[0025] In this embodiment, the left backrest and the right backrest both include a backrest seat and a backrest body, the backrest body is fixed to the backrest seat, and the backrest seat is provided with a fixing portion assembled with an elastic adjustment reset mechanism 3. When the lumbar posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term leaning, and the independent adjustment ranges of the left and right lumbar supports can be asynchronous and non-interfering.

[0026] Specifically, the split support arm 2 is Y-shaped, including a left support arm and a right support arm, and the main parts of the left and right support arms are integrally formed or separately formed and then fixed by a fixing member.

[0027] As a more optimal implementation scheme, the left and right support arm main bodies are separately formed and fixed in a detachable manner by at least one pair of connecting plates 4. The design of the split support arm is matched with the split lumbar support, which is assembled independently. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can be independently changed with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous and non-interfering.

[0028] In this embodiment, the left elastic adjustment reset mechanism and the right elastic adjustment reset mechanism both include an elastic adjustment reset member 5 and a base 6. The base 6 is fixed to the left support portion and the right support portion. One end of the elastic adjustment reset member 5 is fixed to the base 6, and the other end is fixed to the fixed portion of the backrest seat. The elastic adjustment reset member 5 adopts a structural member including an elastic reset spring. The design of the split elastic adjustment reset mechanism is combined with the split lumbar support and the support arm, which are assembled independently. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous and non-interfering.

[0029] Specifically, the base 6 is fixed to the left support part and the right support part via a detachable structure, and the base 6 can be axially adjusted up and down relative to the left support part and the right support part. The base 6 is fixed to the left support part and the right support part via a screw-connected detachable structure, and the base 6 is provided with a shielding cover 7 for hiding the screw-connected detachable structure.

[0030] A seat comprises a seat body and a lumbar support structure, adopting the split-type adaptive seat lumbar support described in the present invention, wherein a frame fixing piece is fixedly arranged at the lower end of the split support arm 2, and the split support arm is fixedly connected to the seat body through the frame fixing piece.

[0031] The beneficial effects of the present invention are as follows: the present invention, by providing a split seat back, a split support arm and an elastic adjustment and reset mechanism, changes the adjustment structure of the lumbar support, changes the assembly connection method, and realizes that the lumbar support can be split and adaptively adjusted, and can be automatically reset, that is, the left and right backrests can be adjusted and automatically reset according to the needs of use. When the lumbar support posture needs to be adjusted, the left and right lumbar supports can independently change with the user's sitting posture, thereby improving the comfort of long-term support, and the independent adjustment range of the left and right lumbar supports can be asynchronous, that is, the adjustment angle is arbitrary. When the adjustment range is large, there is no interference with each other, and it will not affect the user's experience. It is also automatically reset when reset, and can be achieved without additional operation.

[0032] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A split type adaptive seat lumbar support, characterized in that: The invention comprises a split seat back, a split support arm and an elastic adjustment reset mechanism, wherein the split seat back comprises a left backrest and a right backrest, the split support arm comprises a left support portion and a right support portion, the elastic adjustment reset mechanism comprises a left elastic adjustment reset mechanism and a right elastic adjustment reset mechanism, the left backrest is fixedly connected to the left support portion via a left elastic adjustment reset mechanism, the right backrest is fixedly connected to the right support portion via a right elastic adjustment reset mechanism, and the left backrest and the right backrest can adaptively deflect and reset relative to the left support portion and the right support portion, respectively.

2. The split-type adaptive seat lumbar support according to claim 1, characterized in that: The left backrest and the right backrest both include a backrest seat and a backrest body, the backrest body is fixed to the backrest seat, and the backrest seat is provided with a fixing part assembled with an elastic adjustment and reset mechanism.

3. The split-type adaptive seat lumbar support according to claim 1, characterized in that: The split support arm is Y-shaped, and includes a left support arm and a right support arm. The main parts of the left and right support arms are integrally formed or separately formed and then fixed by a fixing piece.

4. The split-type adaptive seat lumbar support according to claim 3 is characterized by: The left and right support arm main body parts are separately formed and fixed in a detachable manner through at least one pair of connecting plates.

5. A split-type adaptive seat lumbar support according to claim 1, 2, 3 or 4, characterized in that: The left elastic adjustment reset mechanism and the right elastic adjustment reset mechanism both include an elastic adjustment reset member and a base. The base is fixed to the left support portion and the right support portion. One end of the elastic adjustment reset member is fixed to the base, and the other end is fixed to the fixed portion of the backrest seat. The elastic adjustment reset member adopts a structural member including an elastic reset spring.

6. The split-type adaptive seat lumbar support according to claim 5, characterized in that: The base is fixed to the left supporting part and the right supporting part via a detachable structure, and the base can be axially adjusted upward and downward relative to the left supporting part and the right supporting part.

7. The split-type adaptive seat lumbar support according to claim 6, characterized in that: The base is fixed to the left supporting part and the right supporting part via a screw-connected detachable structure, and the base is provided with a shielding cover for hiding the screw-connected detachable structure.

8. A seat, comprising a seat body and a lumbar support structure, characterized in that: The split-type adaptive seat lumbar support as described in any one of claims 1 to 7 is adopted, a skeleton fixing piece is fixedly arranged at the lower end of the split support arm, and the split support arm is fixedly connected to the seat body through the skeleton fixing piece.

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