CN214631127U - Adjustable supporting mechanism and juvenile seat - Google Patents

Abstract

An adjustable supporting mechanism comprises a transmission mechanism and a supporting body, wherein the transmission mechanism consists of a connecting body and a supporting rod, the supporting body is provided with a first surface and a second surface which is parallel to the first surface and is circular, the connecting body is provided with a first fixed end which is planar, the connecting body is connected with the supporting body in a mode that the first fixed end is positioned at the geometric center of the first surface, and the connecting body is also provided with a second fixed end which is concave; the supporting rod is provided with a convex second matching end and a planar first matching end, and the supporting rod is connected with the connecting body in a manner that the second matching end and the second fixed end are nested with each other. The supporting mechanism is arranged in both the cushion and the back cushion of the juvenile chair. The utility model discloses a supporter among the supporting mechanism can form more position combination forms around the connector rotation or swing. The utility model discloses a surface morphology of cushion and cushion can be initiatively adjusted to teenagers' seat, reaches the dynamic adjustment position of sitting and alleviates tired effect.

Description

Adjustable supporting mechanism and juvenile seat

Technical Field

The utility model belongs to articles for daily use apparatus field especially relates to an adjustable supporting mechanism and juvenile's seat.

Background

At present, the adjustment of students in the market mainly focuses on the adjustment of the large-scale sizes of sitting height, sitting depth, waist rest height and the like, or the adjustment of the surface contact temperature of a cushion and a back cushion, and the shapes of the cushion and the back cushion are fixed and unchangeable. The function of the cushion and the back cushion with changeable shapes mainly appears on the automobile seat, and aims to adapt to different driving environments.

Chinese patent publication No. CN104055344A discloses an intelligent learning seat. The invention uses the sitting posture detection device to collect data of a learner sitting in front of a table and a chair and transmits the collected data to the data processing unit, the data processing unit processes the collected data and transmits a processing result to the intelligent control device, and the intelligent control device correspondingly controls the automatic table and chair adjusting device according to the processing result of the data, thereby realizing the movement of the chair, the automatic lifting of the table top or the automatic inclination of the table top or the automatic lifting of the chair surface or the automatic inclination of the chair back. The limitation of this type of learning chair is that it only provides the overall structural dimensions of the chair, such as seat depth, seat height, etc., and cannot adjust the shape of the seat surface and back cushion. The size adjustment is provided for general students, and the adjustment aims at adapting to different body types of people and cannot adapt to different sitting posture physiological forms.

Chinese patent publication No. CN102050038A discloses a method for dynamically adjusting the body support of a vehicle seat occupant based on the current vehicle speed and stored data about the current road profile. By precalculating a road along which the vehicle is most likely to travel during driving, the respective precalculated road along which the vehicle is most likely to travel is longer than the end of the upcoming curve, and the body support adapted to the entire precalculated road along which the vehicle is most likely to travel is adjusted while passing through the curve. The invention aims to solve the problems of seat support and wrapping in the running process of a vehicle. The dynamic adjustment seat adapts to the stress condition of drivers in different driving states by dynamically adjusting the shape of the seat. The problem to be solved is the stability of the ride during the driver's re-ride rather than to reduce fatigue from sitting for a long period of time.

Patent document No. CN205041762U discloses a dot matrix massage cushion, which comprises a cushion frame, wherein the cushion frame is composed of a top plate, side plates and a bottom plate which are fixed together, the top plate is provided with a plurality of through holes arranged at intervals, the massage cushion further comprises movable massage blocks arranged in the through holes and a driving mechanism for driving the massage blocks to move up and down simultaneously. The driving mechanism can comprise a hydraulic cylinder, a connecting plate and an electromagnetic valve, the hydraulic cylinder and the electromagnetic valve are fixedly arranged on the bottom plate, an output shaft of the hydraulic cylinder is fixedly connected with the connecting plate, and the lower ends of the massage blocks are respectively fixedly connected with the connecting plate. The driving mechanism also can comprise an eccentric wheel, a connecting plate and a motor, the motor is fixedly arranged on the side plate, the eccentric wheel is fixedly arranged on an output shaft of the motor, and the outer contour surface of the eccentric wheel is abutted against the bottom surface of the connecting plate.

The patent document with the publication number of CN204567366U discloses a multi-functional car massage seat, including the seat body, the seat body comprises cushion, back and headrest, the intermediate distance in the inside intermediate layer of cushion is equipped with the vibration massager, cushion right side surface is equipped with adjusting panel, the intermediate distance in the inside intermediate layer upper portion of back is equipped with the vibration massager, the inside intermediate layer lower part from the top down of back is equipped with roll massager and temperature sensor in proper order, all install ventilation heating device in the inside intermediate layer of cushion and back, the back top is connected with the headrest through the connecting rod, the intermediate distance in the inside intermediate layer of headrest is equipped with the vibration massager.

Patent document CN203438860U discloses an active monitoring system for fatigue driving based on a pressure sensor, which includes: the pressure sensor is arranged below a driver seat, and the warning lamp and the horn are both arranged on a vehicle instrument panel; the microprocessor is respectively and electrically connected with the pressure sensor, the warning lamp and the loudspeaker. When the driver has driven continuously for more than 3 hours and 30 minutes, the duration of the corresponding continuous voltage signal reaches 3 hours and 30 minutes, which indicates that the connection driving time of the driver is about to reach the upper time limit (4 hours) of fatigue driving, and the fatigue state can be determined by the duration of the pressure data collected by the pressure sensor.

The patent document with the publication number of CN 106781284A discloses a locomotive driver fatigue driving early warning system based on multi-information fusion, which comprises a vehicle-mounted subsystem and a ground monitoring center subsystem which is arranged at a railway bureau locomotive service section and is in wireless communication with the vehicle-mounted subsystem, wherein the vehicle-mounted subsystem comprises an information acquisition device, an information analysis device and an early warning device, the information acquisition device is connected with the information analysis device and is used for acquiring fatigue information and sending the fatigue information to the information analysis device, and the fatigue information comprises driver face information, driver posture information and driver physiological information; the information analysis device is connected with the early warning device and used for analyzing according to the fatigue information to obtain a fatigue index, sending a corresponding early warning instruction to the early warning device according to the fatigue index and executing early warning operation. The driver physiological information includes heart rate information.

Patent document with publication number CN204580414U discloses a sitting posture correction chair for teenagers, which mainly comprises a chair, an arc-shaped limiting ring, a positioning block, a forward extension adjusting shaft, a lumbar arc-shaped guard plate and a locking bolt; 6 fastening holes are formed in the backrest of the seat; 3 adjusting holes are formed in the arc limiting ring; the arc limiting ring passes through the adjusting hole and the fastening hole through the bolt and is fixed on the seat backrest; the positioning block is fixedly arranged on the seat backrest and is provided with a locking screw hole for screwing the locking bolt; the forward extending adjusting shaft penetrates through the sliding hole; the lumbar vertebra arc-shaped guard plate is fixedly arranged at the end part of the front extension adjusting shaft. According to the height and the weight of a student, the height of the arc-shaped limiting ring and the front and back positions of the extending adjusting shaft are adjusted. Students sit on the chair with both arms passing through the arc-shaped limit ring. The shoulders are located in the arc-shaped limiting ring. The upper part of the body is restrained. The lumbar vertebra arc-shaped guard plate is propped against the waist, and the function of correcting the sitting posture of the lumbar vertebra is achieved. The height position of the arc-shaped limiting ring and the front and back positions of the extending adjusting shaft can be adjusted at regular time, and the aim of regularly controlling the bending angle of the lumbar vertebra is fulfilled. Above-mentioned patent can only carry out the adjustment of lumbar vertebrae position of sitting, and regulatory function is comparatively single, and because the effect of arc restriction ring appears tiredly very easily.

Patent document with publication number CN205093856U discloses a teenager corrects seatpad and seat, and it includes the seatpad board, the back that links to each other with the seatpad board, and the back includes backplate and lower backplate, goes up through slotted hole and adjusting nut swing joint between backplate and the lower backplate, goes up the backplate bilateral symmetry and is provided with the knot hole, go up the backplate and link to each other with adjustment band one end through detaining the hole, be provided with the primary and secondary on the adjustment band other end and detain, the seatpad links to each other with the chair frame is fixed, and the chair frame bottom is connected with the seat support, goes up the seat support and is connected with down the seat support. The seat adjustment process of this patent is comparatively complicated, and can only realize manual regulation, has obvious defect in the aspect of its convenience in the use.

With the increase of age, the body of the teenager is continuously developed, and the body form is continuously changed, particularly the height and the bone form are changed. When sitting, the shape of the seat support portion is likely to cause fatigue and even skeletal development deformity if it does not fit well to the body shape of teenagers of different ages.

Therefore, the seat with the dynamically adjustable cushion and/or back cushion shape is lacking in the market, so that the seat can adapt to different body shapes caused by rapid growth of teenagers or match the body shapes of different people, and the fatigue is relieved.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a supporting mechanism with adjustable, include drive mechanism and the supporter of constituteing by connector and bracing piece. The support body is provided with a first surface and a second surface which is parallel to the first surface and is circular. The connecting body is provided with a planar first fixed end, and the connecting body is connected with the supporting body in a mode that the first fixed end is positioned at the geometric center of the first surface. The connector also has a second fixed end which is concave. The supporting rod is provided with a convex second matching end and a planar first matching end. The supporting rod is connected with the connecting body in a manner that the second mating end and the second fixed end are nested with each other.

According to a preferred embodiment, the support mechanism further comprises a drive mechanism. When the driving mechanism is a push rod motor, the transmission mechanisms are respectively fixedly arranged on a first fixed point and a second fixed point of the first surface, which are distributed on the symmetrical center line of the first surface. Wherein, the respective first cooperation ends of two drive mechanisms are connected to first push rod motor and second push rod motor respectively.

According to a preferred embodiment, when the drive mechanism is a cam mechanism, the cam mechanism comprises a drive shaft connected to a drive motor and a number of cams mounted on the drive shaft. The cams are connected with the transmission mechanism in a one-to-one corresponding manner according to the relative sliding mode between the first mating end and the surfaces of the cams.

According to a preferred embodiment, the cams are arranged on the drive shaft in mirror symmetry with a midpoint of the drive shaft in the axial extension direction as a symmetry center.

According to a preferred embodiment, the projections of straight lines defined by respective first end points of two adjacent cams farthest from the rotation centers thereof and second end points nearest to the rotation centers thereof in a plane perpendicular to the axial direction of the drive shaft intersect with each other.

The utility model provides a still provide a teenagers' seat, including cushion and the cushion of installing on the seat skeleton. Wherein the supporting mechanism is arranged in the seat cushion and the back cushion.

The utility model has the advantages of:

(1) the utility model discloses adopt the mode of spherical pair to be connected between supporting mechanism's connector and the bracing piece for the bracing piece can swing or rotate around spherical pair when being linear motion, and the bracing piece can have the working form that is arbitrary inclination with the cam surface, and the cooperation supporter winds rotation or swing of spherical pair can form more position combination forms.

(2) The utility model discloses a surface morphology of cushion and cushion can be initiatively adjusted to teenagers' seat, reaches the dynamic adjustment position of sitting and alleviates tired effect.

Drawings

Fig. 1 is a schematic view of the overall structure of a preferred support mechanism of the present invention;

fig. 2 is a schematic view of the overall structure of the preferred supporting mechanism of the present invention;

fig. 3 is a schematic view of another preferred supporting mechanism of the present invention;

fig. 4 is a schematic structural view of a preferred juvenile seat of the present invention;

figure 5 is a cross-sectional view of a preferred juvenile seat cushion or back pad of the present invention; and

fig. 6 is a schematic view of the connection relationship of the electronic components according to the present invention.

List of reference numerals

1: support body 2: the connecting body 3: support rod

4: the driving mechanism 5: a push rod motor 6: transmission mechanism

7: the drive motor 8: the transmission shaft 9: cam wheel

10: the cam mechanism 11: the seat frame 12: cushion pad

13: back cushion 14: the control module 15: pressure sensor

16: the communication module 17: accessory 9b is dressed to intelligence: second end point

1 a: first surface 1 b: second surface 2 a: the first fixed end

2 b: second fixed end 3 a: first mating end 3 b: second mating end

5A: first pusher motor 5B: second pusher motor 9 a: first end point

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1, an adjustable supporting mechanism comprises a transmission mechanism 6 consisting of a connecting body 2 and a supporting rod 3, and a supporting body 1. The support body 1 has a first surface 1a and a second surface 1b parallel to the first surface 1a and having a circular shape. The connecting body 2 has a planar first fixed end 2a, and the connecting body 2 is connected to the supporting body 1 in such a manner that the first fixed end 2a is located at the geometric center of the first surface 1 a. Preferably, the connection means of the connection body 2 and the support body 1 can be a fixed connection formed by welding, screwing, riveting or the like. The connecting body 2 further has a second fixed end 2b having a concave shape. The support bar 3 has a convex second mating end 3b and a planar first mating end 3 a. The supporting rod 3 is connected with the connecting body 2 in such a way that the second mating end 3b and the second fixed end 2b are nested with each other. Preferably, the second mating end 3b and the second fixed end 2b together form a spherical pair in a nested manner with each other. The working state of the support body 1 rotating or swinging around the spherical pair is formed based on the mutual sliding of the second mating end 3b and the second fixed end 2 b. The connecting body is connected with the supporting rod in a spherical pair mode, so that the supporting rod can swing or rotate around the spherical pair while doing linear motion, the supporting rod can have a working form with any inclination angle with the surface of the cam, and more position combination forms can be formed by matching the supporting body with the rotation or the swing of the spherical pair.

As shown in fig. 2 and 3, the support mechanism further includes a driving mechanism 4, and the driving mechanism 4 may be a push rod motor 5 or a cam mechanism 10. When the drive mechanism is a pusher motor 5, a first fixing point 4a and a second fixing point 4b are provided on the center line of symmetry of the first surface 1 a. Wherein, a transmission mechanism 6 is respectively arranged and fixed on the first fixed point 4a and the second fixed point 4 b. Preferably, the respective first mating ends 3a of the transmission mechanisms 6 are connected to push rods having planar end surfaces of the first and second push rod motors 5A and 5B, respectively.

When the drive mechanism 4 is a cam mechanism 10, the cam mechanism 10 includes a drive shaft 8 connected to the drive motor 7 and a number of cams 9 mounted on the drive shaft 8. Wherein, a plurality of cams 9 are connected with the transmission mechanism 6 in a one-to-one correspondence relationship according to the way that the first mating ends 3a slide relatively to the surfaces of the cams. Preferably, the plurality of cams 9 are arranged on the transmission shaft 8 in a mirror symmetry manner with a midpoint in the axial extension direction of the transmission shaft 8 as a symmetry center. Preferably, projections of straight lines of the adjacent two cams 9 defined by their respective first end points 9a farthest from their rotational centers and second end points 9b closest to their rotational centers on a plane perpendicular to the axial direction of the propeller shaft intersect each other. The independent support area composed of a plurality of support bodies can change the position form of the independent support area based on the thrust exerted by the cam, and the support form with undulation can be formed in the coverage area of the independent support area.

As shown in fig. 4, a juvenile seat includes a seat cushion 12 and a back cushion 13 mounted on a seat frame 11. The seat cushion 12 and the back cushion 13 are provided with the above-described support mechanism.

Preferably, a plurality of drive mechanisms 4 with transmission shafts in axial directions parallel to each other and a plurality of transmission mechanisms 6 connected to the drive mechanisms 4 are provided in the seat cushion 12 and the back cushion 13.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (6)

1. An adjustable support mechanism, comprising a transmission mechanism (6) consisting of a connecting body (2) and a support rod (3) and a support body (1), characterized in that the support body (1) has a first surface (1a) and a second surface (1b) parallel to the first surface (1a) and in a circular shape, wherein,

the connecting body (2) is provided with a planar first fixed end (2a), the connecting body (2) is connected with the supporting body (1) in a mode that the first fixed end (2a) is positioned on the symmetrical center line of the first surface (1a), and the connecting body (2) is further provided with a concave second fixed end (2 b);

the supporting rod (3) is provided with a convex second matching end (3b) and a planar first matching end (3a), and the supporting rod (3) and the connecting body (2) form a spherical pair connection together in a manner that the second matching end (3b) and the second fixed end (2b) are nested with each other;

the supporting mechanism further comprises a driving mechanism (4), and when the driving mechanism is a push rod motor (5), the first fixing point (4a) and the second fixing point (4b) of the first surface (1a) distributed on the symmetrical center line of the first surface are respectively provided with and fixed with one transmission mechanism (6); wherein the content of the first and second substances,

the first matching ends (3a) of the two transmission mechanisms (6) are respectively connected to a first push rod motor (5A) and a second push rod motor (5B);

the first push rod motor (5A) and the second push rod motor (5B) are push rods with planar end surfaces.

2. Support mechanism according to claim 1, wherein when the drive mechanism (4) is a cam mechanism (10), the cam mechanism (10) comprises a drive shaft (8) connected to a drive motor (7) and a number of cams (9) mounted on the drive shaft (8), wherein,

the cams (9) are connected with the transmission mechanism (6) in a one-to-one corresponding relationship according to the mode that the first matching ends (3a) and the surfaces of the cams slide relatively.

3. The support mechanism as claimed in claim 2, characterized in that the cams (9) are arranged on the drive shaft (8) in mirror symmetry about a center point in the axial extension direction of the drive shaft (8).

4. A support mechanism as claimed in claim 3, wherein the projections of straight lines defined by their respective first end points (9a) furthest from their centre of rotation and second end points (9b) closest to their centre of rotation, of two adjacent cams (9), in a plane perpendicular to the axial direction of the drive shaft, intersect one another.

5. Juvenile seat characterized in that it comprises a seat cushion (12) and a back cushion (13) mounted on a seat frame (11), wherein the seat cushion (12) and the back cushion (13) have built-in support means according to one of the claims 1 to 4.

6. Juvenile seat according to claim 5, characterized in that several of said drive means (4) with transmission shafts parallel to each other in axial direction and several of said transmission means (6) connected to said drive means (4) are arranged in said seat cushion (12) and back cushion (13).

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