Side wing supporting device and automobile seat

Abstract

The utility model relates to a side wing supporting device and an automobile seat, the side wing supporting device comprises a pressure driving mechanism and two opposite side wings, each side wing has an unfolded state and a tightened state, and the pressure driving mechanism is respectively connected with the two side wings. The pressure driving mechanism is arranged to drive the two side wings to be switched from the unfolding state to the tightening state when bearing pressure exceeding a preset threshold value. According to the side wing supporting device and the automobile seat, when an automobile suddenly accelerates, turns or collides, the pressure applied to the pressure driving mechanism by a passenger exceeds a preset threshold value, so that the pressure driving mechanism is triggered to drive the two side wings to be switched from the unfolding state to the tightening state, and the two sides of the passenger are supported; the passengers are prevented from rolling, and the safety of the passengers is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, and more specifically to a side wing supporting device and an automobile seat. Background Art

[0002] The backrest frame of a car seat is usually provided with side wings, which can support the sides of the occupants when tightened to prevent the occupants from tilting and play a protective role.

[0003] However, the existing side wings can only be tightened or unfolded by motors. If the side wings are not tightened, if the car suddenly accelerates, turns, or collides, the passengers will tilt, affecting the safety of the passengers. For example, if the driver tilts, the car may lose control and cause a traffic accident. Utility Model Content

[0004] The utility model aims to provide a side wing support device and a car seat, which can tighten the unfolded side wings by the pressure of the passengers when the car suddenly accelerates, turns or collides, thereby preventing the passengers from tilting and protecting their safety.

[0005] Based on the above-mentioned purpose, the utility model provides a side wing support device on the one hand, including a pressure drive mechanism and two opposite side wings, the side wings have an expanded state and a tightened state, the pressure drive mechanism is respectively connected to the two side wings, and the pressure drive mechanism is configured to drive the two side wings to switch from the expanded state to the tightened state when subjected to a pressure exceeding a preset threshold.

[0006] Furthermore, the side wing includes a mounting mechanism and a supporting mechanism, the mounting mechanism includes a mounting frame, the supporting mechanism includes a supporting frame, a supporting plate and a rotating shaft, the supporting plate is fixed to the supporting frame, a first rotating disk is respectively fixed at both ends of the supporting frame, the rotating shaft is rotatably mounted on the mounting frame, both ends of the rotating shaft extend out of the mounting frame and are respectively fixedly connected to the two first rotating disks; a second rotating disk is also fixed to one end of the rotating shaft, the pressure driving mechanism is connected to the second rotating disk, and when the pressure driving mechanism is subjected to a pressure exceeding a preset threshold, the support plate is rotated from the expanded position to the tightened position by driving the second rotating disk to rotate, so that the two side wings are switched from the expanded state to the tightened state.

[0007] Furthermore, the mounting mechanism also includes a mounting plate, and a mounting space is formed between the mounting plate and the mounting frame. A first slider is provided in the mounting space, and the first slider is slidably connected to the mounting frame and can slide between a first position and a second position along a first direction relative to the mounting frame, and the first direction is perpendicular to the axial direction of the rotating shaft; the first slider is slidably hinged to the two first turntables respectively, so that the first slider and the support plate can move synchronously; when the first slider is in the first position, the support plate is in the expanded position, and the side wings are in the expanded state; when the first slider is in the second position, the side wings are in the tightened state.

[0008] Furthermore, the first slider is provided with two opposite sliding shafts, the extension direction of the sliding shafts is parallel to the axial direction of the rotating shaft, the mounting frame is provided with two opposite first sliding grooves, the first turntable is provided with a second sliding groove, the first sliding groove extends along the first direction, and the extension direction of the second sliding groove intersects with the first direction; one of the sliding shafts is sequentially inserted into one of the first sliding grooves and the second sliding groove of one of the first turntables, and the other sliding shaft is sequentially inserted into another first sliding groove and the second sliding groove of another first turntable, and the sliding shaft can slide in the first sliding groove and the second sliding groove.

[0009] Furthermore, the side wing also includes a motor drive mechanism, which includes a motor, a screw rod and a second slider, the motor is fixed on the mounting plate, the screw rod is connected to the motor, the second slider is threadedly connected to the screw rod, and the screw rod extends along the first direction; the first slider is provided with a receiving groove with an open end, the opening of the receiving groove faces the first position, and the second slider can be detachably accommodated in the receiving groove so that the second slider and the first slider can be detachably connected.

[0010] Furthermore, the mounting mechanism includes at least one guide rod extending along the first direction, both ends of the guide rod are respectively fixed to the mounting frame and the mounting plate, the guide rod passes through the first slider and the second slider, and the first slider and the second slider can slide on the guide rod.

[0011] Furthermore, the pressure driving mechanism includes a base plate, a pressure block transmission mechanism and a wire harness transmission mechanism, the pressure block transmission mechanism is installed on the base plate and connected to the wire harness transmission mechanism, the wire harness transmission mechanism is respectively connected to the second turntables of the two side wings, the pressure block transmission mechanism is used to withstand pressure and convert the pressure into tension applied to the wire harness transmission mechanism, the wire harness transmission mechanism transmits the tension to the two second turntables respectively, when the pressure on the pressure block transmission mechanism exceeds a preset threshold, the wire harness transmission mechanism will rotate the second turntable, thereby rotating the support plate from the expanded position to the tightened position.

[0012] Furthermore, the wiring harness transmission mechanism includes a wiring harness box, a first wiring harness and two second wiring harnesses, the wiring harness box has an inner cavity, a wiring harness slider and an elastic member are provided in the inner cavity, the wiring harness slider can slide in the inner cavity, the elastic member is in a compressed state and is located between the wiring harness slider and the bottom of the wiring harness box; the first end of the first wiring harness and the first ends of the two second wiring harnesses are connected to the wiring harness slider, the second end of the first wiring harness is connected to the pressure block transmission mechanism, the second end of one of the second wiring harnesses is connected to the second turntable of one of the side wings, and the second end of the other second wiring harness is connected to the second turntable of the other side wing.

[0013] Furthermore, a first limit block is provided at the first end of the first wiring harness, and a second limit block is provided at the first end of the second wiring harness. A first limit groove with a top opening and two second limit grooves with bottom openings are provided on the wiring harness slider, and the two second limit grooves correspond one to one to the two second wiring harnesses. The first limit block is slidably disposed in the first limit groove, and the second end of the first wiring harness sequentially passes through the bottom of the wiring harness slider and the bottom of the wiring harness box and is connected to the pressing block transmission mechanism; the second limit block is slidably disposed in the corresponding second limit groove, and the second end of the second wiring harness sequentially passes through the top of the wiring harness slider and the top of the wiring harness box and is connected to the corresponding second turntable.

[0014] Furthermore, the pressure block transmission mechanism includes a pressure block plate and a connecting rod assembly, the connecting rod assembly is installed on the base plate, the pressure block plate is connected to the connecting rod assembly, the two ends of the connecting rod assembly are respectively slidably connected to the base plate and can approach or move away from each other, and the second end of the first wiring harness is fixedly connected to one end of the connecting rod assembly; the pressure block plate is used to withstand pressure, and when subjected to pressure, the two ends of the connecting rod assembly move away from each other to apply a pulling force to the first wiring harness.

[0015] Further, the connecting rod assembly includes a first connecting rod, a second connecting rod, a fixed seat, a third connecting rod and a fourth connecting rod, the fixed seat is fixed on the base plate, the first end of the first connecting rod is slidably connected to the base plate, the second end of the first connecting rod, the first end of the second connecting rod and the pressure block plate are hinged to each other, the second end of the second connecting rod is hinged to the fixed seat, the first end of the third connecting rod is hinged to the fixed seat, the second end of the third connecting rod, the first end of the fourth connecting rod and the pressure block plate are hinged to each other, and the second end of the fourth connecting rod is slidably connected to the base plate.

[0016] Further, the first wiring harness passes around the first end of the first connecting rod and is fixed to the second end of the fourth connecting rod, or passes around the second end of the fourth connecting rod and is fixed to the first end of the first connecting rod.

[0017] Another aspect of the utility model provides a car seat, comprising a backrest frame and the side wing support device as described above, wherein the two side wings of the side wing support device are respectively installed on the two sides of the backrest frame, and the pressure drive mechanism of the side wing support device is installed in the bottom area of ​​the backrest frame.

[0018] With the side wing support device and the automobile seat of the present invention, when the automobile suddenly accelerates, turns or collides, the pressure applied by the occupant to the pressure driving mechanism will exceed a preset threshold, thereby triggering the pressure driving mechanism to drive the two side wings to switch from an expanded state to a tightened state, thereby supporting the two sides of the occupant, preventing the occupant from tilting, and protecting his safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a wing support device according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic structural diagram of a backrest frame of a car seat equipped with a side wing support device according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a side wing according to an embodiment of the utility model;

[0022] Figure 4 An exploded view of a wing according to an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of a supporting mechanism of a wing according to an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the installation relationship between the side wings and the backrest frame according to an embodiment of the utility model;

[0025] Figure 7An exploded view of a pressure drive mechanism according to an embodiment of the utility model;

[0026] Figure 8 An exploded view of a wire harness transmission mechanism of a pressure drive mechanism according to an embodiment of the utility model;

[0027] Fig. 9 A cross-sectional view of the internal structure of a wire harness box of a wire harness transmission mechanism according to an embodiment of the utility model;

[0028] Fig.10 It is a schematic diagram of the installation relationship between the pressure drive mechanism and the backrest frame according to an embodiment of the utility model;

[0029] Fig.11 An exploded view of a pressing block transmission mechanism according to an embodiment of the utility model;

[0030] Fig.12 It is an exploded schematic diagram of a connecting rod assembly of a pressing block transmission mechanism according to an embodiment of the utility model;

[0031] Fig.13 It is a schematic diagram of the structure after the pressing block transmission mechanism according to the embodiment of the utility model is installed on the base plate;

[0032] Fig.14 A top view of the side wing according to an embodiment of the utility model when it is in an unfolded state;

[0033] Fig.15 It is a front view of the side wings according to the embodiment of the utility model in the unfolded state;

[0034] Fig.16 A top view of the side wings according to an embodiment of the utility model when they are in a tightened state;

[0035] Fig.17 It is a front view of the side wings driven by the pressure driving mechanism in a tightened state according to an embodiment of the utility model;

[0036] Fig.18 It is a front view of the side wings driven by the motor drive mechanism in a tightened state according to an embodiment of the utility model;

[0037] Fig.19 is a top view of the pressure-driven mechanism when the side wings according to an embodiment of the utility model are in an unfolded state;

[0038] Fig. 20 It is a rear view of the pressure drive mechanism when the side wings according to the embodiment of the utility model are in the unfolded state;

[0039] Fig.21 A top view of the pressure drive mechanism according to an embodiment of the utility model when the side wings are driven to switch to a tightened state after being pressurized;

[0040] Fig. 22 It is a rear view of the pressure driving mechanism according to the embodiment of the utility model when the side wings are driven to switch to the tightened state after being pressed;

[0041] Fig.23 It is a schematic diagram of the result of the harness driving mechanism according to an embodiment of the utility model when the side wing is in the unfolded state;

[0042] Fig.24 It is a structural schematic diagram of the harness driving mechanism according to an embodiment of the utility model when driving the side wing to a tightened state;

[0043] Fig.25 It is a structural schematic diagram of the harness driving mechanism when a motor drives one of the side wings to a tightened state according to an embodiment of the utility model. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present utility model are given below in conjunction with the accompanying drawings and described in detail.

[0045] like Figure 1 As shown, an embodiment of the utility model provides a wing support device 1000, which includes a pressure drive mechanism 100 and two side wings 200. The two side wings 200 are arranged opposite to each other, and the side wings 200 have an expanded state and a tightened state. The pressure drive mechanism 100 is respectively connected to the two side wings 200, and the pressure drive mechanism 100 is used to switch the two side wings 200 from the expanded state to the tightened state when the pressure it bears exceeds a preset threshold.

[0046] like Figure 2 As shown, when in use, the side wing support device 1000 is installed on the back frame 2000 of the automobile seat. Specifically, the two side wings 200 are respectively installed on both sides (i.e., the left and right sides) of the back frame 2000, and the pressure drive mechanism 100 is installed in the bottom area of ​​the back frame 2000. When there is no occupant sitting in the automobile seat, the two side wings 200 will be in an expanded state under the action of external force (usually the force applied by the cushion on the back frame 2000 to the side wings 200); when the occupant sits on the automobile seat, a pressure will be applied to the pressure drive mechanism 100. When the automobile is driving normally, the pressure is small (smaller than the external force), so the two side wings 200 will be in an expanded state. When the automobile suddenly accelerates, turns or collides, the pressure will increase. When it increases to be greater than the external force, the two side wings 200 will switch from the expanded state to the tightened state, thereby covering both sides of the occupant to provide certain support to both sides of the occupant to ensure their safety.

[0047] like Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the wing 200 includes a mounting mechanism 210 and a supporting mechanism 220, the mounting mechanism 210 includes a mounting frame 211, the supporting mechanism 220 includes a supporting frame 221, a supporting plate 222 and a rotating shaft 223, the supporting plate 222 is fixed on the supporting frame 221, and a first rotating disk 224 is fixed at both ends of the supporting frame 221, the rotating shaft 223 is rotatably mounted on the mounting frame 211 (the rotating shaft 223 can rotate around its own axis relative to the mounting frame 211), and both ends of the rotating shaft 223 extend outside the mounting frame 211 (that is, the rotating shaft 223 can rotate around its own axis relative to the mounting frame 211), and both ends of the rotating shaft 223 extend outside the mounting frame 211 (that is, the rotating shaft 223 can rotate around its own axis). The rotating shaft 223 passes through the mounting frame 211), and the two ends of the rotating shaft 223 are respectively fixedly connected to the two first rotating disks 224, so that the supporting frame 221 is fixedly connected to the rotating shaft 223. Since the rotating shaft 223 can rotate around its own axis relative to the mounting frame 211, the supporting frame 221 and the supporting plate 222 can also rotate with the rotating shaft 223. Through the rotation of the supporting plate 222, the side wing 200 can be switched between the expanded state and the tightened state; a second rotating disk 225 can also be fixed to one end of the rotating shaft 223, and the pressure drive mechanism 100 is connected to the second rotating disk 225. When there is no occupant in the car seat, the external force applied to the side wing 200 will cause the support plate 222 to rotate to the expanded position in the direction away from the center of the backrest frame. At this time, the support plates 222 of the two side wings 200 are the farthest apart, and both side wings 200 are in the expanded state; when the pressure drive mechanism 100 is pressurized, the pressure drive mechanism 100 can provide a pulling force to the second turntable 225 to rotate it in the direction close to the center of the backrest frame. When the pressure is large enough, the pulling force will be greater than the external force, so that the support plate 222 rotates in the direction close to the center of the backrest frame and stops rotating after rotating to the tightened position. At this time, the support plates 222 of the two side wings 200 are the closest to each other, and both side wings 200 are in the tightened state. The support plates 222 of the two side wings 200 can support the two sides of the occupant respectively.

[0048] In some embodiments, the support frame 221 may be a steel wire frame, for example, a half-open frame formed by bending a steel wire; the support plate 222 may be an elastic deformable member covered with foam.

[0049] In some embodiments, the mounting mechanism 210 may further include a mounting plate 212, which is fixed to the mounting frame 211 and forms a mounting space therebetween. A first slider 213 is provided in the mounting space. The first slider 213 is slidably connected to the mounting frame 211 and can slide relative to the mounting frame 211 along a first direction between a first position and a second position, wherein the first direction is perpendicular to the axial direction of the rotation axis (i.e., the second direction), and the first position and the second position are respectively defined by the mounting frame 211 and the mounting plate 212. When the first slider 213 is located at the first position, one side of the first slider 213 abuts against the mounting frame 211, and when the first slider 213 is located at the second position, the other end of the first slider 213 abuts against the mounting plate 212. The first slider 213 is slidably hinged to the two first turntables 224, respectively, so that the support plate 222 and the first slider 213 can move synchronously. When the support plate 222 is in the extended position, the first slider 213 is in the first position; when the support plate 222 is in the tightened position, the first slider 213 is in the second position; when the support plate 222 rotates from the extended position to the tightened position or from the tightened position to the extended position, the first turntable 224 can make the first slider 213 slide from the first position to the second position or from the second position to the first position synchronously; conversely, when the first slider 213 slides from the first position to the second position or from the second position to the first position, the support plate 222 can also be rotated from the extended position to the tightened position or from the tightened position to the extended position. Since the mounting frame 211 and the mounting plate 212 define the first position and the second position, the extended position and the tightened position of the support plate 222 can also be defined thereby.

[0050] In some embodiments, the first slider 213 may be provided with two opposing sliding shafts 213a, both of which extend along the second direction, the mounting frame 211 is provided with two first slide grooves 211a opposing each other along the second direction, the first turntable 224 is provided with a second slide groove 224a, the extension direction of the first slide groove 211a is parallel to the first direction, and the extension direction of the second slide groove 224a is not parallel to the first direction (i.e., intersecting), one of the sliding shafts 213a is sequentially inserted into one of the first slide grooves 211a and one of the second slide grooves 224a of the first turntable 224, and can slide in the first slide groove 211a and the second slide groove 224a, and the other sliding shaft 213a is sequentially inserted into another first slide groove 211a and the second slide groove 224a of another first turntable 224, and can slide in the first slide groove 211a and the second slide groove 224a. Therefore, when the first slider 213 slides along the first direction, the sliding shaft 213a will slide in the first slide groove 211a and the second slide groove 224a. Since the extension direction of the second slide groove 224a intersects with the first direction, the sliding shaft 213a will contact the first turntable 224 when sliding, and provide a force to the first turntable 224, so that the first turntable 224 and the rotating shaft 223 rotate around the axial direction of the rotating shaft 223, thereby rotating the support plate 222; conversely, when the support plate 222 rotates, the first turntable 224 will also provide a force to the sliding shaft 213a, so that the sliding shaft 213a and the first slider 213 slide along the first direction.

[0051] In some embodiments, a bushing 213b may be sleeved on the outside of the sliding shaft 213a, and the bushing 213b is inserted into the first sliding groove 211a and the second sliding groove 224a and can slide in the first sliding groove 211a and the second sliding groove 224a to avoid direct friction between the sliding shaft 213a and the mounting frame 211 and the first turntable 224.

[0052] In some embodiments, the mounting frame 211 and the mounting plate 212 may be fixed together by a plurality of fasteners 214 such as bolts.

[0053] In some embodiments, the wing 200 may also include a motor drive mechanism 230, which includes a motor 231, a screw rod 232 and a second slider 233. The motor 231 is fixed on the mounting plate 212, the screw rod 232 is connected to the motor 231, and the second slider 233 is threadedly connected to the screw rod 232. The screw rod 232 extends along a first direction. The motor 231, the screw rod 232 and the second slider 233 constitute a ball screw structure. When the motor 231 rotates, it will drive the screw rod 232 to rotate. The rotation of the screw rod 232 causes the second slider 233 to slide along the screw rod 232, thereby causing the second slider 233 to slide along the first direction; the first slider 213 is provided with a receiving groove 213c with an opening at one end, and the opening of the receiving groove 213c faces the first position. The second slider 233 can be detachably accommodated in the receiving groove 213c so that the second slider 233 and the first slider 213 can be detachably connected.

[0054] When the support plate 222 is in the expanded position, the first slider 213 is in the first position, and the second slider 233 is in the accommodating groove 213c, which is also in the first position. At this time, the first slider 213 can slide from the first position to the second position by itself, and can also slide from the second position to the first position. The first slider 213 and the second slider 233 are separable; when the support plate 222 is in the expanded position, the second slider 233 can also slide toward the second position under the drive of the motor 231. Since the second slider 233 is located in the accommodating groove 213c, it will push the first slider 213 to slide toward the first position together, so that the support plate 222 rotates from the expanded position to the tightened position. When moving to the second position, the first slider 213 is blocked by the mounting plate 212 and cannot continue to slide. Then the motor 231 can be turned off. Since the ball screw has a self-locking function, the second slider 233 can stop at the second position, thereby keeping the support plate 222 in the tightened position, that is, the side wing 200 is kept in the tightened state. Therefore, the side wings 200 can also be switched from the unfolded state to the retracted state through the motor drive mechanism 230 .

[0055] In some embodiments, the motor 231 can be fixed to the mounting plate 212 by a fastener 234 such as a bolt. An auxiliary mounting piece 235 can also be provided between the motor 231 and the mounting plate 212, and the fastener 234 passes through the motor 231, the auxiliary mounting piece 235 and the mounting plate 212 in sequence and is fastened to achieve installation.

[0056] Since the motor 231 is mounted on the mounting plate 212 and the first slider 213 is located between the second slider 233 and the mounting plate 212 , a through hole for the screw rod 232 to pass through may be provided on the first slider 213 so that the screw rod 232 can be threadedly connected to the second slider 233 .

[0057] In some embodiments, the mounting mechanism 210 may further include at least one (for example, two) guide rods 215, which extend along a first direction and have their two ends respectively fixed to the mounting frame 211 and the mounting plate 212, and the guide rod 215 passes through the first slider 213 and the second slider 233, and the first slider 213 and the second slider 233 may slide on the guide rod 215 so that the sliding of the first slider 213 and the second slider 233 can be guided by the guide rod 215.

[0058] In some embodiments, the mounting plate 212 may be provided with two connecting pieces 212a, and the mounting frame 211 may be provided with a connecting piece 211b, each connecting piece being used to fix the side wing 200 to the backrest frame 2000. Figure 6 As shown, the three connecting pieces 211 b and 212 a can be fixedly connected to the side frame 2100 of the backrest frame 2000 by three screws 216 , so that the side wing 200 can be fixed to the side frame 2100 .

[0059] like Figure 7 As shown, the pressure drive mechanism 100 may include a base plate 110, a pressure block transmission mechanism 120 and a harness transmission mechanism 130. The pressure block transmission mechanism 120 is mounted on the base plate 110. The pressure block transmission mechanism 120 is connected to the harness transmission mechanism 130. The harness transmission mechanism 130 is respectively connected to the second rotating disks 225 of the two side wings 200. After being compressed, the pressure block transmission mechanism 120 converts the pressure into a pulling force to pull the harness transmission mechanism 130. The harness transmission mechanism 130 transmits the pulling force to the two sides. The second turntable 225 of the wing 200 tends to rotate toward the tightening position under the action of the pulling force. The rotation of the second turntable 225 will cause the rotating shaft 223, the supporting frame 221 and the supporting plate 222 to rotate together. When the pressure on the pressing block transmission mechanism 120 is large enough, the pulling force on the second turntable 225 will overcome the external force and rotate the second turntable 225 and the supporting plate 222 to the tightening position, thereby switching the side wing 200 from the expanded state to the tightened state.

[0060] like Figure 8 and Fig. 9As shown, the harness transmission mechanism 130 may include a harness box 131, a first harness 132 and two second harnesses 133. The harness box 131 has an inner cavity 131a, in which a harness slider 134 and an elastic member 135 are provided. The harness slider 134 can slide up and down in the inner cavity 131a. The elastic member 135 is in a compressed state and is located between the bottom of the harness slider 134 and the bottom of the harness box 131. The elastic member 135 provides an upward elastic force to the harness slider 134. When no other force is applied, the elastic force causes the top of the harness slider 134 to be tightly attached to the top of the harness slider 134. The first end of the first harness 132 and the first ends of the two second harnesses 133 are both connected to the harness slider 134, and the second end of the first harness 132 is connected to the pressing block transmission mechanism 1 20 is connected, the second end of one of the second wire harnesses 133 is connected to the second turntable 225 of one of the side wings 200, and the second end of the other second wire harness 133 is connected to the second turntable 225 of the other side wing 200; the pressing block transmission mechanism 120 can convert the pressure it bears into a pulling force applied to the first wire harness 132, and the pulling force will cause the wire harness slider 134 to have a tendency to move downward. When the pressure is large enough, the pulling force will cause the wire harness slider 134 to move downward, and the downward movement of the wire harness slider 134 will cause the two second wire harnesses 133 to move downward, thereby applying a pulling force to the second wire harnesses 133, and the second wire harnesses 133 will pull the second turntable 225 to rotate toward the tightening position, thereby rotating the support plate 222 to the tightening position, that is, switching the side wing 200 to the tightening state.

[0061] In some embodiments, the wiring harness box 131 may include a box body 131b and a box cover 131c, which are detachably fixed. The box body 131b has a cavity with an opening at the top. After the box cover 131c is fixed on the box body 131b, it can cover the opening of the cavity to form an inner cavity 131a; the box cover 131c is provided with a through hole for the second wiring harness 133 to pass through, and the box body 131b is provided with a through hole for the first wiring harness 132 to pass through, so that the end of each wiring harness can pass through the box cover 131c or the box body 131b to enter the inner cavity 131a and be connected to the wiring harness slider 134.

[0062] In some embodiments, a first limit block 132a is provided on the first end of the first wiring harness 132, and a second limit block 133a is provided on the first end of the second wiring harness 133. A first limit groove 134a with a top opening and two second limit grooves 134b with bottom openings are provided on the wiring harness slider 134. The two second limit grooves 134b correspond one to one with the two second limit blocks 133a. The first limit block 132a is slidably disposed in the first limit groove 134a. The second end of the first wiring harness 132 sequentially passes through the bottom of the wiring harness slider 134 and the bottom of the wiring harness box 131 and is connected to the pressing block transmission mechanism 120. The second limit block 133a is slidably disposed in the second limit groove 134b. The second wiring harness 133 sequentially passes through the top of the wiring harness slider 134 and the top of the wiring harness box 131 and is connected to the second turntable 225 of the side wing 200. Therefore, when the first wire harness 132 is subjected to a sufficiently large pulling force, the wire harness slider 134 can be pulled to slide downward, and the second wire harness 133 can be pulled, and the second wire harness 133 drives the support plate 222 to rotate toward the tightening position.

[0063] like Fig.10 As shown, during installation, the base plate 110 can be fixed to the bottom area of ​​the backrest frame 2000, and the harness box 131 can be fixed to the bottom upper area of ​​the backrest frame 2000, located above the base plate 110, and the two second harnesses 133 are respectively connected to the two side wings 200.

[0064] like Fig.11 , Fig.12 and Fig.13 As shown, the pressure block transmission mechanism 120 may include a pressure block plate 121 and a connecting rod assembly 122, the connecting rod assembly 122 is installed on the base plate 110, the pressure block plate 121 is connected to the connecting rod assembly 122, both ends of the connecting rod assembly 122 are slidably connected to the base plate 110, and can approach or move away from each other, and the second end of the first wire harness 132 is fixedly connected to one end of the connecting rod assembly 122; in this way, the connecting rod assembly 122 and the first wire harness 132 can move synchronously; the pressure block plate 121 is used to bear the pressure of the occupant and transmit the pressure to the connecting rod assembly 122. Under the action of the pressure, the two ends of the connecting rod assembly 122 have a tendency to move away from each other, thereby applying a pulling force to the first wire harness 132. When the pressure is large enough, the pulling force of the first wire harness 132 will overcome the external force, so that the side wing 200 is switched from the deployed state to the tightened state.

[0065] In some embodiments, the connecting rod assembly 122 may include a first connecting rod 122a, a second connecting rod 122b, a fixed seat 122c, a third connecting rod 122d and a fourth connecting rod 122e, the fixed seat 122c is fixed on the base plate 110, the first end of the first connecting rod 122a is slidably connected to the base plate 110, the second end of the first connecting rod 122a, the first end of the second connecting rod 122b and the pressure block plate 121 are hinged to each other, the second end of the second connecting rod 122b is hinged to the fixed seat 122c, the first end of the third connecting rod 122d is hinged to the fixed seat 122c, the second end of the third connecting rod 122d, the first end of the fourth connecting rod 122e and the pressure block plate 121 are hinged to each other, and the second end of the fourth connecting rod 122e is slidably connected to the base plate 110; the first end of the first wiring harness 132 is fixedly connected to the first end of the first connecting rod 122a or the second end of the fourth connecting rod 122e. Therefore, when the pressure block plate 121 is compressed, the pressure will be transmitted to the connecting rod assembly 122. Under the pressure, the first end of the first connecting rod 122a and the second end of the fourth connecting rod 122e will slide on the base plate 110 and move away from each other, thereby applying pressure to the first wiring harness 132.

[0066] In some embodiments, two third slide grooves 111 may be provided on the substrate 110 (see Figure 7 ), the first end of the first connecting rod 122a can slide in one of the third sliding grooves 111, and the fourth connecting rod 122e can slide in the other third sliding groove 111, so that they are slidably connected to the base plate 110.

[0067] It is understood that each connecting rod can be a slender rod (such as Fig.13 ), or Fig.12 The square frame shown, when it is a square frame, can have two connection points at its end, and the two connection points of one connecting rod are respectively hinged to the two connection points of another connecting rod.

[0068] In some embodiments, the first wire harness 132 may be fixed to the second end of the fourth connecting rod 122e after passing through the first end of the first connecting rod 122a, or may be fixed to the first end of the first connecting rod 122a after passing through the second end of the fourth connecting rod 122e. A wire harness groove 123 may be provided on the first end of the first connecting rod 122a and the second end of the fourth connecting rod 122e, and the first wire harness 132 may be passed through the wire harness groove 123 so that the first wire harness 132 can move more conveniently when being pulled.

[0069] like Fig.14 and Fig.15As shown, when the wing 200 is in the unfolded state, the first slider 213 and the second slider 233 are both located at the first position, the second slider 233 is just accommodated in the receiving groove 213c, the sliding shaft 213a is located near the lower end of the first slide groove 211a and the inner end of the second slide groove 224a, and the support plate 222 is located at the unfolded position. Fig.16 As shown, when the wing 200 is in the tightened state, the first slider 213 moves from the first position to the second position, the sliding shaft 213a moves from the lower end of the first slide groove 211a to the upper end of the first slide groove 211a, and moves from the inner end to the outer end of the second slide groove 224a, the first rotating disk 224 rotates clockwise around the axis of the rotating shaft 223, and the support plate 222 rotates clockwise from the unfolded position to the tightened position. The wing 200 may be switched from the unfolded state to the tightened state by the pressure drive mechanism 100, or may be driven by the motor drive mechanism 230. Fig.17 As shown, when driven by the pressure drive mechanism 100, the first wire harness 132 will pull the second turntable 225 to rotate, thereby causing the first turntable 224 and the support plate 222 to rotate together. The rotation of the first turntable 224 will cause the sliding shaft 213a to move from the lower end of the first slide groove 211a to the upper end, and from the inner end of the second slide groove 224a to the outer end, and cause the first slider 213 to move from the first position to the second position, while the second slider 233 remains stationary in the first position; when the pressure on the pressure drive mechanism 100 is released, under the action of external force, the support plate 222 will rotate from the tightened position to the unfolded position, and the side wing 200 will move from the first position to the second position. Fig.16 and Fig.17 The tightened state shown returns to Fig.14 and Fig.15 As shown in the expanded state. Fig.18As shown, when driven by the motor drive mechanism 230, the second slider 233 is driven by the motor 231 to move toward the second position. Driven by the second slider 233, the first slider 213 will also move toward the second position. With the movement of the first slider 213, the sliding shaft 213a will also move from the lower end of the first slide groove 211a to the upper end of the first slide groove 211a, and move from the inner end to the outer end of the second slide groove 224a, thereby driving the first turntable 224 to rotate clockwise, and the support plate 222 will also rotate clockwise. When the first slider 213 moves to the second position, the support plate 222 is located in the tightening position, the motor 231 can stop rotating, and the second slider 233 will be self-locking, so that the side wing 200 remains in the tightened state; when the second slider 233 moves toward the first position, under the action of external force, the side wing 200 will return from the tightened state to the unfolded state. When the motor 231 drives the wing 200 to move, the second slider 233 and the first slider 213 can also be stopped at any position between the first position and the second position. At this time, the support plate 222 will also be tightened inward, but the tightening degree is different, and the closer to the second position, the greater the tightening degree. Therefore, the tightening degree can be adjusted by the motor 231, thereby realizing adaptive adjustment of the wing 200. In this way, the occupant can adjust the tightening degree of the wing 200 according to his own needs, which is more flexible and has wider applicability.

[0070] like Fig.19 and Fig. 20 As shown, when the wing 200 is in the unfolded state under the action of external force, the external force causes the first harness 132 to be subjected to a pulling force (i.e., upward pulling force) that causes the two ends of the connecting rod assembly 122 to approach each other. At this time, the two ends of the connecting rod assembly 122 are closest to each other, and the connecting rod assembly 122 is in an "M" shape. Fig.21 and Fig. 22 As shown, when the pressure block plate 121 is subjected to a sufficiently large pressure, the pressure will be transmitted to the connecting rod assembly 122 and cause the two ends of the connecting rod assembly 122 to slide away from each other on the base plate 110 until they become flat. At this time, the connecting rod assembly 122 will apply a downward pulling force to the first wire harness 132, and the pulling force will be transmitted to the second turntable 225 through the second wire harness 133, thereby overcoming the external force and switching the side wing 200 from the expanded state to the tightened state.

[0071] like Fig.23 As shown, when the side wing is in the unfolded state, the top of the harness slider 134 is in close contact with the top of the harness box 131, the elastic member 135 is located between the harness slider 134 and the bottom of the harness box 131, the second limit block 133a is located at the top of the second limit slot 134b, and the first limit block 132a is located at the bottom of the first limit slot 134a. Fig.24As shown, when the pressure block transmission mechanism 120 is subjected to a sufficiently large pressure, the first wire harness 132 will be subjected to a large downward pulling force. Under the action of this pulling force, the wire harness slider 134 will slide downward in the wire harness box 131 and compress the elastic member 135. The downward sliding of the wire harness slider 134 will also bring the two second wire harnesses 133 downward, so that the two second wire harnesses 133 are also subjected to a downward pulling force. This pulling force will be transmitted to the second turntable 225, so that the second turntables 225 and the rotating shaft 223 on both sides will rotate toward the center of the backrest frame, and the support plates 222 will also rotate with them, so that the support plates 222 on both sides are close to each other to achieve tightening.

[0072] In some embodiments, the two side wings 200 can be driven by the motor 231 from the extended state to the retracted state independently as needed. For example, the side wing 200 on one side can be driven by the motor 231 to the retracted state, while the side wing 200 on the other side can remain in the extended state. Fig.25 As shown, when the left side wing 200 is driven by the motor 231 to a tightened state, and the right side wing 200 remains in the expanded state, the left motor 231 drives the second slider 233 and the first slider 213 to slide to rotate the first turntable 224, thereby rotating the rotating shaft 222, the second turntable 225 and the support plate 222 together. The rotation of the second turntable 225 will cause the second limit block 134b on the first end of the second wiring harness 133 connected thereto to move downward in the second limit groove 133a. At this time, the wiring harness slider 134, the second wiring harness 132 and the second wiring harness 134 on the right side all remain stationary.

[0073] In the side wing support device of the embodiment of the utility model, when the car suddenly accelerates or turns, the pressure applied by the occupant to the pressure drive mechanism 100 will exceed the preset threshold, thereby triggering the pressure drive mechanism 100 to drive the two side wings to switch from the deployed state to the tightened state, thereby supporting the two sides of the occupant, preventing the occupant from tilting, and protecting his safety.

[0074] It should be noted that the utility model (e.g., utility model concepts, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to exemplary embodiments; the embodiments of the utility model are presented only by way of example and are not intended to limit the scope of the utility model. The structure and / or arrangement of the elements of the utility model concepts embodied in the utility model as described in the specification and / or illustrated in the drawings are merely illustrative. Although exemplary embodiments of the utility model have been described in detail in this patent document, it is easy for a person of ordinary skill in the art to understand that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the utility model; all of these subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the utility model. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. can be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performances, materials, compositions, combinations, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the specification and / or drawings of this patent document (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0075] It should also be noted that, according to the exemplary embodiments, the present invention may include conventional technologies (such as technologies implemented and / or integrated in the exemplary embodiments, modifications, changes, combinations, equivalents), or may include any other applicable technologies (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as technologies implemented in embodiments, modifications, changes, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A wing support device, characterized in that: It comprises a pressure driving mechanism and two opposite side wings, wherein the side wings have an expanded state and a contracted state, the pressure driving mechanism is respectively connected to the two side wings, and the pressure driving mechanism is configured to drive the two side wings to switch from the expanded state to the contracted state when subjected to a pressure exceeding a preset threshold.

2. The wing support device according to claim 1, characterized in that: The side wing includes a mounting mechanism and a supporting mechanism, the mounting mechanism includes a mounting frame, the supporting mechanism includes a supporting frame, a supporting plate and a rotating shaft, the supporting plate is fixed to the supporting frame, a first rotating disk is fixed at each end of the supporting frame, the rotating shaft is rotatably mounted on the mounting frame, both ends of the rotating shaft extend out of the mounting frame and are respectively fixedly connected to the two first rotating disks; a second rotating disk is also fixed to one end of the rotating shaft, the pressure driving mechanism is connected to the second rotating disk, and when the pressure driving mechanism is subjected to a pressure exceeding a preset threshold, the support plate is rotated from the expanded position to the tightened position by driving the second rotating disk to rotate, so that the two side wings are switched from the expanded state to the tightened state.

3. The wing support device according to claim 2, characterized in that: The mounting mechanism also includes a mounting plate, a mounting space is formed between the mounting plate and the mounting frame, a first slider is provided in the mounting space, the first slider is slidably connected to the mounting frame, and can slide relative to the mounting frame between a first position and a second position along a first direction, wherein the first direction is perpendicular to the axial direction of the rotating shaft; the first slider is slidably hinged to the two first turntables respectively, so that the first slider and the support plate can move synchronously; when the first slider is located at the first position, the support plate is located at the expanded position, and the side wings are in an expanded state; when the first slider is located at the second position, the side wings are in a tightened state.

4. The wing support device according to claim 3, characterized in that: The first slider is provided with two opposite sliding shafts, and the extending direction of the sliding shafts is parallel to the axial direction of the rotating shaft. The mounting frame is provided with two opposite first sliding grooves, and the first turntable is provided with a second sliding groove. The first sliding groove extends along the first direction, and the extending direction of the second sliding groove intersects with the first direction; one of the sliding shafts is sequentially inserted into one of the first sliding grooves and the second sliding groove of one of the first turntables, and the other sliding shaft is sequentially inserted into the other first sliding groove and the second sliding groove of the other first turntable, and the sliding shaft can slide in the first sliding groove and the second sliding groove.

5. The wing support device according to claim 3, characterized in that: The side wing also includes a motor drive mechanism, which includes a motor, a screw rod and a second slider, the motor is fixed on the mounting plate, the screw rod is connected to the motor, the second slider is threadedly connected to the screw rod, and the screw rod extends along the first direction; the first slider is provided with a receiving groove with an open end, the opening of the receiving groove faces the first position, and the second slider can be detachably accommodated in the receiving groove so that the second slider and the first slider can be detachably connected.

6. The wing support device according to claim 5, characterized in that: The mounting mechanism includes at least one guide rod extending along the first direction, the two ends of the guide rod are respectively fixed to the mounting frame and the mounting plate, the guide rod passes through the first slider and the second slider, and the first slider and the second slider can slide on the guide rod.

7. The wing support device according to claim 2, characterized in that: The pressure driving mechanism includes a base plate, a pressure block transmission mechanism and a wire harness transmission mechanism. The pressure block transmission mechanism is installed on the base plate and connected to the wire harness transmission mechanism. The wire harness transmission mechanism is respectively connected to the second turntables on both side wings. The pressure block transmission mechanism is used to withstand pressure and convert the pressure into tension applied to the wire harness transmission mechanism. The wire harness transmission mechanism transmits the tension to the two second turntables respectively. When the pressure on the pressure block transmission mechanism exceeds a preset threshold, the wire harness transmission mechanism will rotate the second turntable, thereby rotating the support plate from the expanded position to the tightened position.

8. The wing support device according to claim 7, characterized in that: The wiring harness transmission mechanism includes a wiring harness box, a first wiring harness and two second wiring harnesses, the wiring harness box has an inner cavity, a wiring harness slider and an elastic member are provided in the inner cavity, the wiring harness slider can slide in the inner cavity, the elastic member is in a compressed state and is located between the wiring harness slider and the bottom of the wiring harness box; the first end of the first wiring harness and the first ends of the two second wiring harnesses are connected to the wiring harness slider, the second end of the first wiring harness is connected to the pressure block transmission mechanism, the second end of one of the second wiring harnesses is connected to the second turntable of one of the side wings, and the second end of the other second wiring harness is connected to the second turntable of the other side wing.

9. The wing support device according to claim 8, characterized in that: A first limit block is provided at the first end of the first wiring harness, and a second limit block is provided at the first end of the second wiring harness. A first limit groove with a top opening and two second limit grooves with bottom openings are provided on the wiring harness slider, and the two second limit grooves correspond one to one to the two second wiring harnesses. The first limit block is slidably disposed in the first limit groove, and the second end of the first wiring harness sequentially passes through the bottom of the wiring harness slider and the bottom of the wiring harness box and is connected to the pressing block transmission mechanism; the second limit block is slidably disposed in the corresponding second limit groove, and the second end of the second wiring harness sequentially passes through the top of the wiring harness slider and the top of the wiring harness box and is connected to the corresponding second turntable.

10. The wing support device according to claim 8, characterized in that: The pressure block transmission mechanism includes a pressure block plate and a connecting rod assembly, the connecting rod assembly is installed on the base plate, the pressure block plate is connected to the connecting rod assembly, the two ends of the connecting rod assembly are respectively slidably connected to the base plate and can approach or move away from each other, and the second end of the first wiring harness is fixedly connected to one end of the connecting rod assembly; the pressure block plate is used to withstand pressure, and when subjected to pressure, the two ends of the connecting rod assembly are moved away from each other to apply a pulling force to the first wiring harness.

11. The wing support device according to claim 10, characterized in that: The connecting rod assembly includes a first connecting rod, a second connecting rod, a fixed seat, a third connecting rod and a fourth connecting rod. The fixed seat is fixed on the base plate, the first end of the first connecting rod is slidably connected to the base plate, the second end of the first connecting rod, the first end of the second connecting rod and the pressure block plate are hinged to each other, the second end of the second connecting rod is hinged to the fixed seat, the first end of the third connecting rod is hinged to the fixed seat, the second end of the third connecting rod, the first end of the fourth connecting rod and the pressure block plate are hinged to each other, and the second end of the fourth connecting rod is slidably connected to the base plate.

12. The wing support device according to claim 11, characterized in that: The first wiring harness is fixed to the second end of the fourth connecting rod after passing around the first end of the first connecting rod, or is fixed to the first end of the first connecting rod after passing around the second end of the fourth connecting rod.

13. A car seat, characterized in that: It comprises a backrest frame and a wing support device as described in any one of claims 1 to 12, wherein two side wings of the wing support device are respectively installed on two sides of the backrest frame, and a pressure drive mechanism of the wing support device is installed in the bottom area of ​​the backrest frame.

Images