Split type self-adaptive seat waist rest and seat

Abstract

The utility model relates to a split type self-adaptation seat waist rest and seat, including split type seat back, split type support arm and elasticity adjustment reset mechanism, split type seat back includes left back and right back, split type support arm includes left support portion and right support portion, and the elastic adjustment reset mechanism includes the left back and right back. 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 present application relates to a split type self-adaptive seat waist rest and a seat, belonging to the technical field of seat components and seats. BACKGROUND

[0002] As furniture closely related to human life, seats bring convenience to human work and meet the daily needs of working in a crouched position.

[0003] The waist rest of the existing seat is either fixed and not adjustable, or needs to be manually adjusted in angle and up-down position to reach a position suitable for the back posture. However, in the adjustment process, the user's back is away from the waist rest (the reason is that the components driving the waist rest to rotate are mostly torsional springs that cannot support the weight of the back), so the user can only rely on repeated adjustment and leaning to reach the most comfortable position. This method is extremely inconvenient and often cannot adjust to the most comfortable position. Moreover, after adjustment, the waist rest posture is fixed and cannot change with the user's sitting posture, leading to discomfort for a long time. In addition, the existing waist rest adjustment often changes the posture by rotating the waist rest and the hinge angle of the seat cushion. When the adjustment range is large, it seriously affects the user's experience.

[0004] The Chinese utility model patent with the authorization announcement date of July 12, 2022 and the authorization announcement number of CN216932462U discloses a self-adhesive back following waist rest, which comprises a support frame, a waist rest plate and a support rod. The upper end of the support rod is hingedly provided with an upper hinge assembly, one end of the upper hinge assembly is fixed to the middle part of the support frame, the lower end of the support rod is hingedly provided with a lower hinge assembly, the waist rest plate is fixed on the lower hinge assembly through bolts, the support frame is hingedly provided with a driving assembly, one end of the driving assembly is hingedly connected 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 act by a switch and drives the support rod to rotate around the upper end hinge point. Since the support rod has two reverse torsion actions that keep the inclination angle of the waist rest plate unchanged, the waist rest plate can always be close to the user's waist and back, providing stable support and helping to maintain a good sitting posture. However, the utility model still has the following disadvantages: the structure is complex, the waist rest plate can only be moved forward with the unchanged inclination angle by the two reverse torsion actions of the support rod, the waist rest plate can always be close to the user's waist and back, providing stable support and helping to maintain a good sitting posture, and the split type self-adaptive adjustment function cannot be realized, i.e. the left and right backrests cannot be adjusted according to the user's needs. The present application aims to solve this technical problem by changing the adjustment structure of the waist rest and changing the assembly connection method to realize the split type self-adaptive adjustment of the waist rest and automatic reset. SUMMARY

[0005] One of the purposes of the present application is to solve the problems of the prior art and provide a split-type self-adaptive seat backrest capable of automatic reset.

[0006] The second purpose of the present application is to provide a seat provided with the seat backrest of the present application, which is capable of split-type self-adaptive adjustment and automatic reset through the adjustment structure of the seat backrest.

[0007] The technical solution adopted by the present application to solve the technical problems is:

[0008] The split-type self-adaptive seat backrest comprises a split-type seat backrest, a split-type support arm and an elastic adjustment reset mechanism.

[0009] The present application changes the adjustment structure of the seat backrest and the assembly connection mode to realize split-type self-adaptive adjustment and automatic reset of the seat backrest, i.e., the left and right backrests are adjusted and automatically reset according to the needs of the user.

[0010] Preferably, the left and right backrests each comprise a backrest seat and a backrest body, the backrest body is fixed to the backrest seat, and the backrest seat is provided with a fixed part assembled with the elastic adjustment reset mechanism.

[0011] Preferably, the split-type support arm is Y-shaped and comprises a left support arm and a right support arm, and the left and right support arms are integrally formed or fixed by a fixing member after being separately formed.

[0012] Preferably, the left and right support arm body parts are fixed by at least one pair of connecting plates in a detachable manner after being formed separately.

[0013] Preferably, the left and right elastic adjusting reset mechanisms each include an elastic adjusting reset member and a base, the base is fixed to the left and right support parts, one end of the elastic adjusting reset member is fixed to the base, and the other end is fixed to the fixed part of the backrest base, and the elastic adjusting reset member adopts a structural member including an elastic reset spring.

[0014] Preferably, the base is fixed to the left and right support parts through a detachable structure, and the base can be adjusted axially upward and downward relative to the left and right support parts.

[0015] Preferably, the base is fixed to the left and right support parts through a detachable structure, and the base can be adjusted axially upward and downward relative to the left and right support parts.

[0016] A seat chair includes a seat chair body and a waist support structure, and adopts the split self-adapting seat chair waist support structure.

[0017] The present application has the following beneficial effects: by setting the split seat backrest, the split support arm and the elastic adjusting reset mechanism, the adjusting structure of the waist support is changed, the assembly connection mode is changed, the waist support can be adjusted in a split self-adapting manner, and can be automatically reset, that is, the left and right backrests can be adjusted and automatically reset according to the needs of use. BRIEF DESCRIPTION OF DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Fig. 1 This is a schematic diagram of the structure of the present invention;

[0020] Fig. 2 This is a schematic diagram of the structure of the present invention;

[0021] Fig. 3 This is a schematic diagram of the structure of the present invention.

[0022] The labels in the attached diagram are as follows: 1. Split backrest, 2. Split support arm, 3. Elastic reset adjustment structure, 4. Connecting plate, 5. Elastic reset adjustment component, 6. Base, 7. Shield. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to 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 providing a clearer and more explicit definition of the scope of protection of the present invention.

[0024] Example: Figs. 1-3 As shown, a split-type adaptive lumbar support includes a split-type seat backrest 1, a split-type support arm 2, and an elastic adjustment and reset mechanism 3. The split-type seat backrest 1 includes a left backrest and a right backrest, the split-type support arm 2 includes a left support part and a right support part, and the elastic adjustment and reset mechanism 3 includes 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 part through the left elastic adjustment and reset mechanism, and the right backrest is fixedly connected to the right support part through the right elastic adjustment and reset mechanism. The left backrest and the right backrest can adaptively deflect and reset relative to the left support part and the right support part, respectively.

[0025] This invention, by setting up a split-type seat backrest 1, a split-type support arm 2, and an elastic adjustment and reset mechanism 3, changes the adjustment structure of the lumbar support and alters the assembly connection method, enabling the lumbar support to achieve split-type adaptive adjustment and automatic reset. That is, the left and right backrests can be adjusted and automatically reset according to usage needs. When the lumbar support posture needs adjustment, the left and right lumbar supports can independently change with the user's sitting posture, improving comfort for long-term use. Furthermore, the adjustment range of the left and right lumbar supports can be asynchronous, meaning the adjustment angle is arbitrary. When the adjustment range is large, they do not interfere with each other and will not affect the user's experience. Resetting is also automatic and requires no additional operation.

[0026] In the embodiment, the left backrest and the right backrest each 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 fixed part assembled with the elastic adjusting and resetting mechanism 3. When the posture of the lumbar support needs to be adjusted, the left and right lumbar supports can independently change along with the change of the sitting posture of the user, the comfort of long-time leaning is improved, and the independent adjustment ranges of the left and right lumbar supports can be asynchronous and do not interfere with each other.

[0027] Specifically, the split support arm 2 is Y-shaped and includes a left support arm and a right support arm, and the left and right support arms are integrally formed or fixed by a fixing member after being separately formed.

[0028] As a more optimal implementation scheme, the left and right support arm main parts are fixed in a detachable manner by at least one pair of connecting plates 4 after being separately formed. The design of the split support arm, in combination with the split lumbar support, is independently assembled, the left and right lumbar supports can independently change along with the change of the sitting posture of the user when the posture of the lumbar support needs to be adjusted, the comfort of long-time leaning is improved, and the independent adjustment ranges of the left and right lumbar supports can be asynchronous and do not interfere with each other.

[0029] In the embodiment, the left elastic adjusting and resetting mechanism and the right elastic adjusting and resetting mechanism each include an elastic adjusting and resetting member 5 and a base 6, the base 6 is fixed to the left support part and the right support part, one end of the elastic adjusting and resetting member 5 is fixed to the base 6, the other end is fixed to the fixed part of the backrest seat, and the elastic adjusting and resetting member 5 adopts a structural member including an elastic resetting spring. The design of the split elastic adjusting and resetting mechanism, in combination with the split lumbar support and the support arm, is independently assembled, the left and right lumbar supports can independently change along with the change of the sitting posture of the user when the posture of the lumbar support needs to be adjusted, the comfort of long-time leaning is improved, and the independent adjustment ranges of the left and right lumbar supports can be asynchronous and do not interfere with each other.

[0030] Specifically, the base 6 is fixed to the left support part and the right support part through 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 through a screw detachable structure, and the base 6 is provided with a shielding cover 7 for hiding the screw detachable structure.

[0031] A seat chair includes a seat body and a lumbar support structure, and adopts the split self-adaptive seat chair lumbar support of the present application. A framework fixing member is fixedly arranged at the lower end of the split support arm 2, and the split support arm is fixedly connected with the seat body through the framework fixing member.

[0032] The application has the beneficial effects that: the application changes the adjusting structure of the waist rest, changes the assembling connection mode, realizes that the waist rest can be self-adaptingly adjusted in a split type, and can be automatically reset, that is, the left and right backrests are adjusted and automatically reset according to the use requirement. When the waist rest posture needs to be adjusted, the left and right waist rests can be independently changed along with the change of the sitting posture of the user, the comfort of long-time reliance is improved, and the adjusting amplitudes of the left and right waist rests can be different, that is, the adjusting angle is arbitrary, when the adjusting amplitude is large, the left and right waist rests do not interfere with each other, and the experience of the user is not affected, and the reset is also automatic reset, and no additional operation is needed.

[0033] The above-mentioned embodiment is only a preferred scheme of the application, and does not limit the application in any form, and other variants and modifications can be made without exceeding the technical scheme recorded in the claims.

Claims

1. A split self-adapting seat lumbar support, characterized in that, The split seat backrest includes a left backrest and a right backrest, the split support arm includes a left support part and a right support part, and the elastic adjustment reset mechanism includes a left elastic adjustment reset mechanism and a right elastic adjustment reset mechanism.

2. The split self-adapting seat lumbar support of claim 1, wherein: The left backrest and the right backrest are respectively capable of self-adapting deflection and reset relative to the left support part and the right support part.

3. The split self-adapting seat lumbar support of claim 1, wherein: The left backrest and the right backrest each 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 fixed part assembled with the elastic adjustment reset mechanism.

4. The split self-adapting seat lumbar support of claim 3, wherein: The split support arm is Y-shaped and includes a left support arm and a right support arm, and the left and right support arm main parts are integrally formed or fixed by a fixing part after being formed in a split manner.

5. The split self-adapting seat lumbar support of claim 1, wherein: The left and right support arm main parts are fixed in a detachable manner by at least one pair of connecting plates after being formed in a split manner.

6. A seat comprising a seat body and a lumbar support structure, characterised in that, The base and the left support part and the right support part are fixed by screwing a detachable structure, and the base is provided with a shielding cover for hiding the screwing detachable structure. The split self-adapting seat waist rest of any one of claims 1-5 is fixed at the lower end of the split support arm, and the split support arm and the seat body are fixed and connected by a framework fixing part.

Images