Double-posture seat capable of being flexibly adjusted

Abstract

The utility model provides a flexibly adjustable double-posture seat, which belongs to the technical field of seats, has a first sitting posture and a second sitting posture, and comprises a main seat, a child seat, a first folding mechanism and a second folding mechanism, the first folding mechanism is used for adjusting the folding angle of a main backrest and an auxiliary cushion, and the second folding mechanism is used for adjusting the folding angle of a child seat. The second folding mechanism is used for adjusting the folding angle of the auxiliary cushion and the auxiliary backrest and enabling the child seat to have a storage posture and a sitting posture, when the child seat is in the first sitting posture, the child seat in the storage posture is embedded into the main backrest, and when the child seat is in the second sitting posture, the child seat in the sitting posture is formed above the main cushion; conversion between the first sitting posture and the second sitting posture is achieved through two folding motions, automatic conversion can be achieved conveniently, meanwhile, the folding angle between the main backrest and the auxiliary seat cushion and the folding angle between the auxiliary seat cushion and the auxiliary backrest can be adjusted, and a more comfortable and stable child seat can be formed.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a flexibly adjustable dual-posture seat. Background Art

[0002] The seat belts in cars are designed according to adult standards and are suitable for adults weighing 36kg and over 140cm in height. If used by children, the seat belts will get stuck on the children's necks, which will be more harmful to children in the event of an accident. Therefore, child seats are specially designed. Child seats are seats used exclusively for children in cars. They are generally installed in passenger cars and fixed to the back seats to protect children's safety while the vehicle is driving; the correct use of child safety seats can effectively reduce the mortality rate of children in car accidents by 70%. Among them, child seats are divided into toddler seats and child seats. Usually, child seats are used for children aged 4-12, and toddler seats are used for children under 4 years old. Toddler seats require the backrest of the toddler seat to be moved to the opposite side of the backrest of the child seat.

[0003] The patent with publication number CN202685994U in the prior art discloses a dual-purpose seat for adults and children. In this seat, when a child seat is needed, the child seat cushion is pulled to make the pulley rotate a certain angle around the guide groove first, and then the pulley is pulled to the lower end along the guide groove, and the child seat backrest is unfolded for use. However, this structure is not conducive to realizing the automatic conversion of the seat posture. At the same time, the child seat formed on the seat has poor adjustability. Firstly, the child seat cushion and the adult seat backrest adopt a matching structure of pulleys and guide grooves, which are not adjustable and have poor stability. Secondly, the child seat cushion will abut against the adult seat cushion, resulting in limited adjustment of the child seat cushion and the backrest, and it is also easy to cause damage to the adult seat cushion. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a flexibly adjustable dual-posture seat.

[0005] The technical solution adopted by the utility model is as follows: the application provides a flexibly adjustable dual-posture seat, having a first sitting posture and a second sitting posture, the first sitting posture is for adults or children, and the second sitting posture is for young children, including: a main seat, the main seat including a main seat cushion and a main backrest; a toddler seat, the toddler seat including a secondary seat cushion and a secondary backrest; a first folding mechanism, the first folding mechanism is used to adjust the folding angle between the main backrest and the secondary seat cushion; a second folding mechanism, the second folding mechanism is used to adjust the folding angle between the secondary seat cushion and the secondary backrest, and enables the toddler seat to have a storage posture and a sitting posture; wherein, when the dual-posture seat is in the first sitting posture, the toddler seat in the storage posture is embedded in the main backrest, and when the dual-posture seat is in the second sitting posture, the toddler seat in the sitting posture is formed above the main seat cushion.

[0006] In some embodiments, the child seat in the stowed position is embedded in the main backrest and constitutes a part of the body-contacting surface of the main backrest.

[0007] In some embodiments, the first folding mechanism and the second folding mechanism are manually driven or driven by an actuator. When the first folding mechanism and the second folding mechanism are driven by an actuator, the actuator is connected to a control system and a power supply system on the vehicle.

[0008] In some embodiments, a certain distance is arranged between the child seat in the sitting posture and the main seat cushion.

[0009] In some embodiments, a fixing frame is further included, wherein the fixing frame is used to connect to the main backrest, the lower side of the fixing frame is hinged to the auxiliary seat cushion, and the side of the auxiliary seat cushion away from the fixing frame is hinged to the auxiliary backrest.

[0010] In some embodiments, the first folding mechanism includes: a first actuator, which is disposed on the auxiliary seat cushion and connected to a first gear; and a sector-shaped toothed disc, which is disposed on a fixed frame and includes a sector-shaped tooth portion, and the first gear is meshed with the sector-shaped tooth portion.

[0011] In some embodiments, the second folding mechanism includes: a second actuator, one end of which is hinged on the auxiliary seat cushion; a first screw rod, which is connected to the second actuator; a first slider, which is slidably arranged along the first screw rod; and a moving shaft, which is connected to the first slider, and the two move synchronously, and a first arc guide groove is arranged on the auxiliary seat cushion, and the moving shaft extends into the first arc guide groove and is connected to the auxiliary backrest.

[0012] In some embodiments, the auxiliary seat cushion includes a first bottom plate portion and two first side plate portions vertically arranged on both sides of the first bottom plate portion, and the auxiliary backrest includes a second bottom plate portion and two second side plate portions vertically arranged on both sides of the second bottom plate portion, the first bottom plate portion is arranged close to the fixing frame, and the two first side plate portions are extended in a direction away from the fixing frame; the two first side plate portions are hinged to the outer sides of the corresponding second side plate portions, the first bottom plate portion and the second bottom plate portion are located on opposite sides, and a spacing is arranged between the first side plate portion and the second bottom plate portion.

[0013] In some embodiments, the first folding mechanism includes a third actuator, a second screw rod, a slide seat, a track plate and a sliding rod, wherein the third actuator and the slide seat, one of which is rotatably set on a fixed frame, and the other of which is rotatably set on a secondary cushion, the second screw rod cooperates with the slide seat and is driven by the third actuator, the track plate and the sliding rod, one of which is set on the fixed frame, and the other of which is set on the secondary cushion, a second arc guide groove is provided on the track plate, and the sliding rod extends into the second arc guide groove and slides therewith.

[0014] In some embodiments, the first folding mechanism includes a fourth actuator and a rotating rod, the fourth actuator is arranged on the auxiliary seat cushion, lugs are arranged on both sides of the fixing frame facing the auxiliary seat cushion, connecting parts are arranged on both sides of the auxiliary seat cushion to the lugs, the rotating rod is rotatably arranged relative to the lugs, the rotating rod is connected to the connecting part so that the auxiliary seat cushion rotates with the rotating rod, the rotating rod is driven by the fourth actuator, a limiting structure is arranged between the connecting part and the lug, and the limiting structure is used to limit the range of the folding angle of the auxiliary seat cushion relative to the fixing frame.

[0015] The beneficial effects of the present invention are as follows: in the present invention, the conversion between the first sitting posture and the second sitting posture is achieved through two folding movements, which is convenient for automatic conversion. At the same time, the folding angles between the main backrest and the auxiliary seat cushion and between the auxiliary seat cushion and the auxiliary backrest can be adjusted, which can form a more comfortable and stable child seat and can prevent the child seat from causing damage to the main seat cushion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0017] Figure 1 is a schematic diagram of the child seat in the first embodiment in a storage position;

[0018] Figure 2is a schematic diagram of the child seat in the first embodiment in a sitting position;

[0019] Figure 3 An exploded view of the child seat in the first embodiment;

[0020] Figure 4 is a schematic diagram of the auxiliary seat cushion in the first embodiment;

[0021] Figure 5 is a schematic diagram of the auxiliary backrest in the first embodiment;

[0022] Figure 6 is a schematic diagram of the child seat in the second embodiment in a storage position;

[0023] Figure 7 is a schematic diagram of the child seat in the second embodiment in a sitting position;

[0024] Figure 8 is a schematic diagram of the child seat in the third embodiment in a storage position;

[0025] Fig. 9 is a schematic diagram of the child seat in the third embodiment in a sitting position;

[0026] Fig.10 is a schematic diagram of a child seat in Embodiment 3;

[0027] Fig.11 for Fig.10 The enlarged view of point A in the middle;

[0028] Fig.12 is a schematic diagram of the child seat in the fourth embodiment in a storage position;

[0029] Fig.13 is a schematic diagram of a child seat in a sitting position in Embodiment 4;

[0030] Fig.14 is a cross-sectional view of the child seat in the fourth embodiment;

[0031] Fig.15 A partial schematic diagram of a child seat in Embodiment 5 Figure 1 ;

[0032] Fig.16 A partial schematic diagram of a child seat in Embodiment 5 Figure 2 . DETAILED DESCRIPTION

[0033] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0034] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0036] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0037] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0039] Embodiment 1:

[0040] The present application provides a flexibly adjustable dual-posture seat, which can be applied to seats of various vehicles, such as cars, ships, airplanes, etc., and will be described below using the application to car seats as an example.

[0041] like Figures 1 to 5As shown, a flexibly adjustable dual-posture seat has a first sitting posture and a second sitting posture. The first sitting posture is for adults or children, and the second sitting posture is for young children. The dual-posture seat can be a combination of a young child seat and an adult seat, or a combination of a young child seat and a child seat. In this embodiment, the latter is preferred.

[0042] This dual-stance seat includes:

[0043] A main seat, the main seat comprising a main seat cushion and a main backrest;

[0044] A child seat, the child seat comprising a secondary seat cushion 1 and a secondary backrest 2;

[0045] It includes a fixing frame 5, which can be used as a part of the main seat or a part of the toddler seat. Preferably, the fixing frame 5 is used as a part of the toddler seat. The fixing frame 5 is used to connect with the main backrest, so that the toddler seat can be used as an independent module, which can be processed separately from the main seat during production and then assembled together, thereby shortening the production time of the product.

[0046] The first folding mechanism 3 is used to adjust the folding angle between the main backrest and the auxiliary seat cushion 1. It should be understood that there are many mechanisms that can achieve the desired effect of the first folding mechanism 3, and reference can be made to the structures with the same function in the field of automobile seat technology.

[0047] In this embodiment, a first folding mechanism 3 is provided. Specifically, the lower side of the fixing frame 5 is hinged to the auxiliary seat cushion 1 to improve the stability of the auxiliary seat cushion 1 when rotating relative to the fixing frame 5. The first folding mechanism 3 includes: a first actuator 30, which is arranged on the auxiliary seat cushion 1 and is connected to a first gear 31; and a fan-shaped toothed disc 32, which is arranged on the fixing frame 5 and includes a fan-shaped tooth portion 321, which is arranged along the arc edge of the fan-shaped toothed disc 32, and the first gear 31 is meshed with the fan-shaped tooth portion 321. The first actuator 30 drives the first gear 31 to rotate along the fan-shaped tooth portion 321, thereby driving the auxiliary seat cushion 1 to rotate synchronously.

[0048] The second folding mechanism 4 is used to adjust the folding angle between the auxiliary seat cushion 1 and the auxiliary backrest 2, and to enable the child seat to have a storage posture and a sitting posture; it should be understood that there are many mechanisms that can achieve the desired effect of the second folding mechanism 4, and reference can be made to the structure with the same function in the field of automobile seat technology.

[0049] In this embodiment, a second folding mechanism 4 is provided. Specifically, the side of the auxiliary cushion 1 away from the fixing frame 5 is hinged to the auxiliary backrest 2 to improve the stability of the auxiliary backrest 2 when rotating relative to the auxiliary cushion 1. The second folding mechanism 4 includes: a second actuator 40, one end of which is hinged to the auxiliary cushion 1; the second actuator 40 uses a motor and is equipped with a commutator, and the output shaft of the second actuator 40 is arranged perpendicular to the main body of the second actuator 40 through the commutator. The auxiliary cushion 1 is provided with an articulated seat, and the end of the commutator away from the auxiliary backrest 2 is articulated to the articulated seat. A first screw rod 41, the first screw rod 41 is connected to the second actuator 40; specifically, the first screw rod 41 is connected to the output end of the commutator on the second actuator 40. A first slider 42, which is slidably arranged along the first screw rod 41; and a movable shaft 43, which is connected to the first slider 42, and the two move synchronously. A first arc guide groove 100 is arranged on the auxiliary seat cushion 1, and the movable shaft 43 extends into the first arc guide groove 100 and is connected to the auxiliary backrest 2. In this embodiment, both ends of the movable shaft 43 pass through the corresponding first arc guide grooves 100 and are connected to the auxiliary backrest 2.

[0050] Secondly, the auxiliary seat cushion 1 includes a first bottom plate portion 101 and two first side plates 102 vertically arranged on both sides of the first bottom plate portion 101, and the auxiliary backrest 2 includes a second bottom plate portion 201 and two second side plates 202 vertically arranged on both sides of the second bottom plate portion 201, the first bottom plate portion 101 is arranged close to the fixing frame 5, and the two first side plates 102 are extended in a direction away from the fixing frame 5; the two first side plates 102 are hinged to the outer sides of the corresponding second side plates 202, the first bottom plate portion 101 and the second bottom plate portion 201 are located on opposite sides, and a spacing is arranged between the first side plate portion 102 and the second bottom plate portion 201, which does not affect the rotation of the auxiliary backrest 2, and can also control the folding angle range of the auxiliary backrest 2 relative to the auxiliary seat cushion 1 through this spacing, and the auxiliary seat cushion 1 and the auxiliary backrest 2 adopt this connection structure, the second folding mechanism 4 can operate simultaneously with the first folding mechanism 3, which shortens the time for the dual-posture seat to switch between two postures.

[0051] Secondly, the corner 104 of the first side plate portion 102 toward the second bottom plate portion 201 is set to be an arc shape, which can avoid scratches on the auxiliary backrest 2 when the auxiliary backrest 2 rotates relative to the auxiliary seat cushion 1 compared to a right angle.

[0052] Among them, when the dual-posture seat is in the first sitting posture, the toddler seat in the storage posture is embedded in the main backrest. Preferably, the toddler seat in the storage posture is embedded in the main backrest and constitutes a part of the body-contacting surface of the main backrest. Due to the different structures of toddler seats, it is possible that the auxiliary seat cushion 1 and the auxiliary backrest 2 both constitute a part of the body-contacting surface of the main backrest. For example, if the folding mechanism of this embodiment is adopted, it is also possible that the auxiliary seat cushion 1 constitutes a part of the body-contacting surface of the main backrest. In this way, the second folding mechanism 4 needs to fold the auxiliary backrest 2 into the auxiliary seat cushion 1. Compared with the previous structure, the space occupied in the storage posture is smaller, but the posture conversion time is increased.

[0053] When the dual-posture seat is in the second sitting posture, the toddler seat in the sitting posture is formed above the main seat cushion. Preferably, a certain distance is arranged between the toddler seat in the sitting posture and the main seat cushion, so as not to affect the adjustment of the second folding mechanism 4, thereby helping to improve the comfort of the toddler seat and avoiding damage to the main seat cushion.

[0054] Furthermore, in addition to being driven by an actuator, the first folding mechanism 3 and the second folding mechanism 4 can also be manually driven. However, actuator drive is preferred, and the actuator is preferably a motor. The actuator is connected to the control system and power supply system on the vehicle. This makes the dual-posture seat suitable for the field of new energy vehicles and can further enhance the intelligence of new energy vehicles, for example, in conjunction with functions such as voice control and visual detection, which will not be described in detail here.

[0055] Embodiment 2:

[0056] like Figure 6 and Figure 7 As shown, the present embodiment provides another first folding mechanism 3. Specifically, the first folding mechanism 3 includes a third actuator 33, a second screw rod 34, a slide seat 35, a track plate 36 and a sliding rod 37. The third actuator 33 and the slide seat 35, one of which is rotatably set on the fixed frame 5, and the other is rotatably set on the auxiliary seat cushion 1. The second screw rod 34 cooperates with the slide seat 35 and is driven by the third actuator 33. The track plate 36 and the sliding rod 37, one of which is set on the fixed frame 5, and the other is set on the auxiliary seat cushion 1. The track plate 36 is provided with a second arc guide groove 361, and the sliding rod 37 extends into the second arc guide groove 361 and slides therewith.

[0057] In this embodiment, the third actuator 33 is rotatably set on the auxiliary cushion 1, the slide 35 is rotatably set on the fixed frame 5, the track plate 36 is set on the fixed frame 5, and the sliding rod 37 is set on the auxiliary cushion 1, wherein the third actuator 33, the second screw rod 34 and the slide 35 cooperate to make the auxiliary cushion 1 rotate relative to the fixed frame 5, and the track plate 36 and the sliding rod 37 cooperate to limit the direction and range of relative rotation.

[0058] Embodiment three:

[0059] like Figures 8 to 11 As shown, this embodiment provides another first folding mechanism 3. Specifically, the first folding mechanism 3 includes a fourth actuator 38 and a rotating rod 39. The fourth actuator 38 is arranged on the auxiliary seat cushion 1. The two sides of the fixing frame 5 are provided with lugs 50 facing the auxiliary seat cushion 1. The two sides of the auxiliary seat cushion 1 are provided with connecting parts 103 for the lugs 50. The rotating rod 39 is rotatably arranged relative to the lugs 50. The rotating rod 39 is connected to the connecting part 103 so that the auxiliary seat cushion 1 rotates with the rotating rod 39. The rotating rod 39 is driven by the fourth actuator The device 38 is driven, and a limiting structure is arranged between the connecting portion 103 and the lug portion 50. The limiting structure is used to limit the range of the folding angle of the auxiliary seat cushion 1 relative to the fixing frame 5. In this embodiment, the limiting structure is as follows: a first protrusion 105 extends from the circumferential side wall of the connecting portion 103, and the connecting portion 103 is preferably disc-shaped. A second protrusion 501 and a third protrusion 502 are arranged on the lug portion 50 along the rotation path of the first protrusion 105, and the first protrusion 105 is limited to rotate between the second protrusion 501 and the third protrusion 502.

[0060] Embodiment 4:

[0061] like Figure 12 to Figure 14 As shown, this embodiment provides a new first folding mechanism 3. Specifically, extension plates 500 are arranged on both sides of the lower part of the fixing frame 5 and are hinged to the auxiliary seat cushion 1. The first folding mechanism 3 includes a fifth actuator 300, a transmission screw 301, a transmission seat 302 and a transmission shaft 303. The fifth actuator 300 is arranged on the fixing frame 5, the transmission seat 302 is connected to the transmission shaft 303, and two extension arms 1000 are arranged on the auxiliary seat cushion 1 and are connected to the transmission shaft. When the fifth actuator 300 drives the transmission screw 301 to rotate, the transmission seat 302 is driven to move on the transmission screw 301, and the transmission shaft 303 is driven to move at the same time, so that the auxiliary seat cushion 1 rotates around the hinge point between it and the extension plate 500.

[0062] Embodiment five:

[0063] In this embodiment, a headrest function is added to the child seat. Fig.15 and Fig.16 As shown, it also includes a headrest 6, which is slidably set on the auxiliary backrest 2, and a telescopic component is set between the headrest 6 and the auxiliary backrest 2, and the telescopic component includes a telescopic actuator 70, a third screw rod 71 and a second slider 72, and the second slider 72 is connected to the headrest 6. Under the drive of the telescopic actuator 70, the headrest 6 can be extended out of the auxiliary backrest 2 or retracted into the auxiliary backrest 2, so that the child seat has a headrest, which improves its riding comfort. At the same time, the telescopic structure can be stored in the auxiliary backrest 2, occupying a small space.

[0064] Specifically, the second side plate portion 202 is provided with a first sliding hole 73, and the first sliding hole 73 is an oblong hole. The second bottom plate portion 201 is provided with a second sliding hole 74, and the second sliding hole 74 is an oblong hole. The headrest 6 includes a third bottom plate portion 61 and two third side plates 62. The fourth side plate portion 63 is vertically arranged on the side of the third bottom plate portion 61 away from the auxiliary backrest 2. The two third side plates 62 are vertically arranged on both sides of the fourth side plate portion 63 and are arranged toward the auxiliary backrest 2. The two third side plates 62 are provided with sliding shafts 64 on the side close to the telescopic actuator 70. The two ends of the sliding shaft 64 are respectively slidably arranged in the two first sliding holes 73. The two third side plates 62 are located on the inner sides of the two second side plates 202, and the third bottom plate portion 61 is located on the outer side of the second bottom plate portion 201. In this way, the headrest 6 and the auxiliary backrest 2 form a plug-in structure, so that the headrest 6 is more stable during the translation process.

[0065] The second bottom plate portion 201 is provided with a third sliding hole 75 matched with the second sliding hole 74, and connecting columns 76 are provided in the second sliding hole 74 and the third sliding hole 75. In the present embodiment, the second sliding hole 74 and the third sliding hole 75 are of the same size, and there are two of each, and they are symmetrically arranged at intervals, so as to further improve the stability of the headrest 6 during the extension and retraction process.

[0066] Embodiment five:

[0067] Based on the above embodiments, this embodiment proposes a method for posture conversion of a flexibly adjustable dual-posture seat, wherein the dual-posture seat has a first sitting posture and a second sitting posture, wherein the first sitting posture is for adults or children to sit, and the second sitting posture is for young children to sit, and includes:

[0068] A main seat, the main seat comprising a main seat cushion and a main backrest;

[0069] A child seat, the child seat comprising a secondary seat cushion and a secondary backrest;

[0070] Wherein, the folding angle between the main backrest and the auxiliary seat cushion can be adjusted;

[0071] The auxiliary seat cushion and the auxiliary backrest can be folded at an adjustable angle, so that the child seat has a storage posture and a sitting posture;

[0072] The method comprises the following steps:

[0073] Step A: Fold the auxiliary seat cushion and auxiliary backrest until the child seat is in the storage position;

[0074] Step B: folding the auxiliary seat cushion relative to the main backrest until the child seat is embedded in the main backrest, and the dual-position seat is in the first sitting position;

[0075] Step C: Expand the auxiliary seat cushion relative to the main backrest to above the main seat cushion;

[0076] Step D: unfold the auxiliary seat cushion and the auxiliary backrest until the child seat is in a sitting posture, at which time the dual-posture seat is in a second sitting posture.

[0077] The unfolding angle of the auxiliary seat cushion and the auxiliary backrest is not less than 90°, preferably 120°.

[0078] The unfolding angle between the auxiliary seat cushion and the main backrest is not less than 90°, preferably 105°.

[0079] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented only by way of example and may not be restrictive. Although not explicitly stated herein, those skilled in the art will appreciate that the requirements of this application encompass various reasonable changes, improvements and modifications to the embodiments. These changes, improvements and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0080] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0081] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. A flexibly adjustable dual-position seat, having a first sitting position and a second sitting position, wherein the first sitting position is for adults or children, and the second sitting position is for young children, characterized in that: include: A main seat, the main seat comprising a main seat cushion and a main backrest; A child seat, the child seat comprising a secondary seat cushion and a secondary backrest; a first folding mechanism, the first folding mechanism being used to adjust a folding angle between the main backrest and the auxiliary seat cushion; a second folding mechanism, the second folding mechanism being used to adjust a folding angle between the auxiliary seat cushion and the auxiliary backrest, and enabling the child seat to have a storage posture and a sitting posture; Among them, when the dual-posture seat is in a first sitting posture, the child seat in a storage posture is embedded in the main backrest, and when the dual-posture seat is in a second sitting posture, the child seat in a sitting posture is formed above the main seat cushion.

2. A flexibly adjustable dual-posture seat according to claim 1, characterized in that: The child seat in the storage posture is embedded in the main backrest and constitutes a part of the body-contacting surface of the main backrest.

3. The flexibly adjustable dual-posture seat according to claim 1, characterized in that: A certain distance is arranged between the child seat in a sitting posture and the main seat cushion.

4. The flexibly adjustable dual-posture seat according to claim 1, characterized in that: It also includes a fixing frame, which is used to be connected to the main backrest, the lower side of the fixing frame is hinged to the auxiliary seat cushion, and the side of the auxiliary seat cushion away from the fixing frame is hinged to the auxiliary backrest.

5. A flexibly adjustable dual-posture seat according to claim 4, characterized in that: The first folding mechanism comprises: a first actuator, the first actuator being disposed on the auxiliary seat cushion and connected to a first gear; And a sector-shaped toothed disc, wherein the sector-shaped toothed disc is arranged on a fixing frame and comprises a sector-shaped toothed portion, and the first gear is meshed with the sector-shaped toothed portion.

6. The flexibly adjustable dual-posture seat according to claim 4, characterized in that: The second folding mechanism comprises: a second actuator, one end of which is hinged to the auxiliary seat cushion; A first screw rod, wherein the first screw rod is connected to the second actuator; A first sliding block, the first sliding block is slidably arranged along the first screw rod; And a moving shaft, the moving shaft is connected to the first slider, and the two move synchronously, the auxiliary seat cushion is provided with a first arc guide groove, the moving shaft extends into the first arc guide groove, and is connected to the auxiliary backrest.

7. A flexibly adjustable dual-posture seat according to claim 6, characterized in that: The auxiliary seat cushion includes a first bottom plate portion and two first side plate portions vertically arranged on both sides of the first bottom plate portion, and the auxiliary backrest includes a second bottom plate portion and two second side plate portions vertically arranged on both sides of the second bottom plate portion, the first bottom plate portion is arranged close to the fixing frame, and the two first side plate portions are extended in a direction away from the fixing frame; the two first side plate portions are hinged to the outer sides of the corresponding second side plate portions, the first bottom plate portion and the second bottom plate portion are located on opposite sides, and a spacing is arranged between the first side plate portion and the second bottom plate portion.

8. The flexibly adjustable dual-posture seat according to claim 4, characterized in that: The first folding mechanism includes a third actuator, a second screw rod, a slide seat, a track plate and a sliding rod. The third actuator and the slide seat, one of which is rotatably set on the fixed frame, and the other is rotatably set on the auxiliary seat cushion. The second screw rod cooperates with the slide seat and is driven by the third actuator. The track plate and the sliding rod, one of which is set on the fixed frame, and the other is set on the auxiliary seat cushion. The track plate is provided with a second arc guide groove, and the sliding rod extends into the second arc guide groove and slides therewith.

9. The flexibly adjustable dual-posture seat according to claim 4, characterized in that: The first folding mechanism includes a fourth actuator and a rotating rod, the fourth actuator is arranged on the auxiliary seat cushion, lugs are arranged on both sides of the fixing frame facing the auxiliary seat cushion, connecting parts are arranged on both sides of the auxiliary seat cushion for the lugs, the rotating rod is rotatably arranged relative to the lugs, the rotating rod is connected to the connecting part so that the auxiliary seat cushion rotates with the rotating rod, the rotating rod is driven by the fourth actuator, a limiting structure is arranged between the connecting part and the lug, and the limiting structure is used to limit the range of the folding angle of the auxiliary seat cushion relative to the fixing frame.

10. The flexibly adjustable dual-posture seat according to claim 4, characterized in that: Extension plates are provided on both sides of the lower part of the fixing frame and are hinged to the auxiliary seat cushion. The first folding mechanism includes a fifth actuator, a transmission screw, a transmission seat and a transmission shaft. The fifth actuator is arranged on the fixing frame, the transmission seat is connected to the transmission shaft, and two extension arms are provided on the auxiliary seat cushion and are connected to the transmission shaft. When the fifth actuator drives the transmission screw to rotate, the transmission seat is driven to move on the transmission screw, and the transmission shaft is driven to move at the same time, so that the auxiliary seat cushion rotates around the hinge point between it and the extension plate.

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