CN213007731U

CN213007731U - Vehicle seat rotary device and seat, vehicle that have it

Info

Publication number: CN213007731U
Application number: CN202021457888.9U
Authority: CN
Inventors: 樊红卫; 张海岸
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-20
Anticipated expiration: 2030-07-22

Abstract

The application discloses a vehicle seat rotating device, a seat with the same and a vehicle, wherein the vehicle seat rotating device is arranged at the bottom of the seat and comprises a fixing part which is suitable for being arranged on a vehicle body of the vehicle; the connecting part is positioned above the fixing part and is suitable for being connected with a seat; the transmission mechanism comprises a transmission shaft, one end of the transmission shaft is rotatably connected with the fixing part, and the other end of the transmission shaft is fixedly connected with the connecting part; the power mechanism is connected with the transmission shaft; when the vehicle collides, the power mechanism generates power to drive the transmission shaft to horizontally rotate so as to drive the seat to rotate. The device disclosed by the invention has the advantages that the seat can rotate horizontally, the rotation angle of the seat is increased, the seat can be turned in the vehicle under the action of the rotating device no matter the vehicle collides forwards or laterally or is in bias collision, the safety of drivers and passengers is ensured, and the device is simple in structure, easy to realize and low in cost.

Description

Vehicle seat rotary device and seat, vehicle that have it

Technical Field

The utility model relates to a vehicle safety protection technical field, concretely relates to vehicle seat rotary device and seat, vehicle that have it.

Background

With the rapid development of society, the usage amount of automobiles is continuously increased, the occurrence rate of traffic accidents is also continuously increased, and the phenomenon that drivers and passengers are trapped in the automobiles due to the deformation of automobile bodies after the automobiles are collided in life is often seen. One reason for this is that when the automobile is in collision, the seat of the driver and the passenger cannot move to pull away the safety distance from the parts of the automobile body (such as the instrument panel and the automobile body), so that the driver and the passenger cannot avoid the automobile body when being squeezed by the parts of the automobile body and the automobile body, and the personal safety of the driver and the passenger is threatened.

The existing vehicle seat rotating device can only rotate one side of the seat to enable the seat to incline, is limited in adjusting angle, cannot give consideration to the protection of drivers and passengers due to the side collision and offset collision accidents of the vehicle, needs to be matched with other protection structures for use, and is complex in structure and high in cost.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a vehicle seat rotating device, a seat having the same, and a vehicle, which have a simple structure and a reasonable rotation angle, and can realize that the seat automatically and reliably rotates towards the inside of the vehicle when the vehicle collides, so as to avoid the contact between a driver and a passenger and improve the safety of the vehicle.

In a first aspect, the present invention provides a pair of vehicle seat rotating device, installed in a seat bottom, including:

a fixed portion adapted to be mounted on a vehicle body of a vehicle;

the connecting part is positioned above the fixing part and is suitable for being connected with a seat;

the transmission mechanism comprises a transmission shaft, one end of the transmission shaft is rotatably connected with the fixing part, and the other end of the transmission shaft is fixedly connected with the connecting part;

the power mechanism is connected with the transmission shaft;

when the vehicle collides, the power mechanism generates power to drive the transmission shaft to horizontally rotate so as to drive the seat to rotate.

As an optional scheme, the method further comprises the following steps:

a locking mechanism, the locking mechanism comprising: the fixing part and the connecting part are provided with locking holes, and the other one is provided with a locking pin;

after the connecting part rotates for a preset angle, the locking pin is inserted into the locking hole under the action of the elastic piece and/or gravity, and the position of the seat is locked.

As an optional scheme, the transmission mechanism further comprises a driving gear arranged on the transmission shaft, and the driving gear is connected with the power mechanism.

As an optional scheme, a positioning pin meshed with the driving gear is arranged on the fixing part, and a weakening groove is formed in the positioning pin.

As an optional scheme, the transmission mechanism further comprises a driven gear arranged on the transmission shaft, a gear sleeve is sleeved outside the driven gear, a counter bore is formed in the connecting portion, and the gear sleeve is fixedly arranged in the counter bore and meshed with the driven gear.

As an optional scheme, the power mechanism comprises a cylinder, and a piston is assembled in the cylinder;

and the gas outlet of the gas generator is positioned in a closed space formed by the cylinder and the piston.

Optionally, one end of the piston is provided with an engaging part, and the engaging part is engaged with the transmission mechanism.

Alternatively, the cylinder is L-shaped.

As an optional scheme, the outer wall of the cylinder is provided with an exhaust hole, and the exhaust hole is used for exhausting after the piston moves to a preset position in the cylinder.

As an optional scheme, the method further comprises the following steps:

the limiting hole is formed in the connecting part and extends along the rotating direction of the connecting part;

one end of the fastening piece penetrates through the limiting hole to be fixedly connected with the fixing part, and the other end of the fastening piece is positioned in the limiting hole;

the fixing part is connected with the connecting part through the fastening piece, and the fastening piece enables the connecting part to rotate in the length direction of the limiting hole.

In a second aspect, the present invention provides a seat comprising the vehicle seat rotating apparatus of the first aspect.

In a third aspect, the present invention provides a vehicle comprising the seat of the second aspect.

In the vehicle seat rotating device, the power mechanism generates power after responding to vehicle collision, the transmission mechanism drives the seat to rotate in the integral horizontal direction, the rotating angle of the seat is increased, the seat can be turned inside the vehicle under the action of the rotating device no matter front collision, side collision or offset collision occurs to the vehicle, the safety of drivers and passengers is ensured, and the vehicle seat rotating device is simple in structure, easy to realize and low in cost.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is an exploded schematic view of a vehicle seat swivel device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a vehicle seat swivel device according to an embodiment of the present invention;

fig. 3 is an exploded view of a seat rotating device according to an embodiment of the present invention; (opposite to the perspective of FIG. 1)

Fig. 4 is an exploded schematic view of a vehicle seat swivel device according to an embodiment of the present invention (a connecting portion is not shown);

fig. 5 is a schematic structural diagram (not shown in the connecting portion) of a transmission mechanism in a vehicle seat swiveling apparatus according to an embodiment of the present invention;

fig. 6 is an exploded schematic view of a transmission mechanism in a vehicle seat swiveling apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a tooth sleeve in a vehicle seat rotating device according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a positioning pin in a seat rotating apparatus for a vehicle according to an embodiment of the present invention;

fig. 9 is an exploded view of a power mechanism in a seat swiveling apparatus according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating an internal exploded structure of a power mechanism in a seat swiveling apparatus for a vehicle according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a vehicle (a vehicle body is not shown) according to an embodiment of the present invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In view of the above problems, an embodiment of the present application provides a seat swivel device for a vehicle, which is mounted to a seat bottom, as shown in fig. 1, and includes:

a fixing portion 10, the fixing portion 10 being adapted to be mounted on a vehicle body of a vehicle;

the connecting part 20 is positioned above the fixing part 10, and is suitable for being connected with a seat;

the transmission mechanism 30, the transmission mechanism 30 includes the drive shaft 31, one end of the drive shaft 31 is rotatably connected with the fixed part 10, another end of the drive shaft 31 is connected with the connecting part 20;

the power mechanism 40, the power mechanism 40 is connected with the transmission shaft 31;

when the vehicle collides, the power mechanism 40 generates power to drive the transmission shaft 31 to rotate horizontally, so as to drive the seat to rotate.

The fixing part 10 of the present disclosure is adapted to be mounted on a body of a vehicle, specifically, the fixing part 10 is integrally formed with the vehicle, such as a vehicle underbody sheet metal; or the fixing portion 10 is a fixing plate fixed on a metal plate at the bottom of the vehicle, and the fixing plate may be, but is not limited to, a steel plate, which is not limited in this application. The metal plate and the fixing plate at the bottom of the vehicle can be fixedly connected in any way, for example, the vehicle seat rotating device can be fixed on the fixing portion 10 by welding. Of course, screwing, riveting or direct stamping sheet metal forming and the like can also be adopted.

In order to facilitate the seat to rotate integrally, the embodiment of the present disclosure connects the vehicle seat rotating device with the seat through the connecting portion 20, and the connecting portion 20 may be, but is not limited to, a connecting plate, a connecting bracket, or the like. Considering the self-structure of the seat, the seat bottom is generally provided with a guide rail for moving forward and backward, and the solution of the present disclosure is advantageous not to affect the forward and backward movement of the seat. The connecting portion 20 is not limited to a steel plate, and the seat and the connecting portion 20 may be fixedly connected by any fixing method, for example, the connecting portion 20 may be fixed to the bottom of the seat rail by welding. Of course, it is also possible to use screwing, riveting or directly stamping the connecting portion 20 to form a seat rail or the like. Likewise, the connecting portion 20 and the transmission mechanism 30 may be fixedly connected by any means, such as, but not limited to, welding, screwing, riveting, stamping from the connecting portion 20, sheet metal forming, and the like.

The transmission mechanism 30 includes a transmission shaft 31, and the transmission shaft 31 for transmitting the power generated by the power mechanism 40 to the seat may be connected to a corresponding gear assembly, a worm gear assembly, or the like, and the embodiment of the present disclosure does not limit the specific structure of the transmission mechanism 30. As long as the power transmission of the power mechanism 40 to the seat can be achieved.

The power mechanism 40 of the present disclosure may be connected to a vehicle control system, and respond to a vehicle collision in time, and at the moment of the vehicle collision, when the collision acceleration detected by the vehicle control system is higher than a predetermined value, the power mechanism 40 generates power. Here, the control system of the vehicle is, for example, but not limited to, an ECU and the like.

The power mechanism 40 includes, but is not limited to, a chemical and/or physical energy source, and the energy source of the power mechanism may be electric energy, magnetic energy, mechanical energy, etc., as long as the energy can be effectively converted into power, and a corresponding conversion tool may be required for the conversion of the energy, and is not limited herein.

Illustratively, when the energy source of power mechanism 40 is electrical energy, power mechanism 40 may be configured to generate power by powering an electrical power circuit of power mechanism 40 in response to a vehicle collision, e.g., power mechanism 40 may be a motor.

For example, when the energy source of the power mechanism 40 is magnetic energy, the magnetic field is generated in response to the vehicle collision, and the repulsive force generated by the principle that like poles of the magnetic field repel each other can be used to drive the transmission mechanism 30 to move, or the power is generated by magnetic induction.

Illustratively, the energy source of power mechanism 40 is mechanical energy that is generated to propel gear train 30 in response to a vehicle collision, e.g., the power mechanism may be a cylinder and piston combination.

In order not to affect the overall appearance and arrangement of the interior of the vehicle, the power mechanism 40 may be disposed below the corresponding seat, wherein the power mechanism 40 may be directly disposed on a vehicle bottom metal plate or may be disposed on a fixing plate fixedly connected to the vehicle bottom metal plate. As shown in fig. 1, the power mechanism 40 and the fixing plate may be fixedly connected in any manner, for example, the fixing plate may be fixed on the vehicle bottom metal plate by welding. Of course, screwing, riveting or direct stamping sheet metal forming and the like can also be adopted.

The transmission mechanism 30 drives the connecting portion 20 to rotate, so that the seat is horizontally rotated by a predetermined angle in a first direction, wherein the first direction is a direction facing the inside of the vehicle. The predetermined angle here may be understood as a maximum angle that the seat can rotate, which has been determined in the early stage of the design of the swivel device, and the predetermined angle may be set to a range of 0 to 180 degrees, for example, depending on the vehicle interior space, for different types of vehicles. For example, when a vehicle is in a side collision, one side of a driver and a passenger may be in direct contact with the vehicle body, ideally, the seat can be rotated by 90 degrees (a predetermined angle), so that the backrest of the seat contacts a door frame part or a B column of the vehicle body, and thus the safety of the driver and the passenger is protected, in the practical process, the predetermined angle can be set to be any angle which is greater than 0 degree and smaller than 90 degrees, and the rotation of a small angle is also beneficial to protecting the driver and the passenger by matching the side airbag and the main airbag, or the rotation angle can be greater than 90 degrees and smaller than 180 degrees; similarly, when the vehicle is in front collision, the seat rotates 180 degrees (a preset angle) under an ideal condition, so that the backrest of the seat contacts a vehicle instrument panel or a vehicle A column, and the safety of a driver and passengers is protected; when a small-angle offset collision occurs, for most vehicles, a driver and passengers easily slide off the air bag under the action of inertia to directly contact the A column or the vehicle body, and the injury caused by the sliding can be reduced through the rotation of a small angle, so that the protection of the main air bag for the driver and passengers is realized.

The power mechanism of the vehicle seat rotating device disclosed by the invention responds to vehicle collision to generate power, the power can be timely generated at the moment of vehicle collision, and the seat is driven to integrally rotate towards the horizontal direction through the transmission mechanism, so that the safety of drivers and passengers is ensured. Compared with the prior art, the scheme disclosed by the invention has the advantages that the whole seat is driven to rotate, the rotation angle is increased, and the rotating device disclosed by the invention is not required to be matched with other protection structures, so that the safety of drivers and passengers can be independently protected, the cost is saved, the structure is simple, and the wide application is easy; and the rotation angle of the seat is a preset angle, so that the rotation angle of the seat can be designed in advance according to the internal space of the vehicle and the body type of a driver and a passenger during seat processing, and the rotation reliability of the seat is ensured.

This is disclosed turns to the seat inside the vehicle through vehicle seat rotary device, promptly, the vehicle no matter when taking place to bump in the front, the side is bumped or the biasing collision, can drive the seat and turn to the inside opposite side that is exactly the collision side of vehicle promptly to the automobile body that avoids the collision to produce collapses and driver and crew direct contact, reduces the injury to driver and crew, and the range of application is wide, easily realizes, low cost, can compromise the nature by force. For example, in the initial stage of vehicle collision, the vehicle and passengers still have certain acceleration relative to the vehicle movement direction due to the inertia effect, so that a driver cannot timely perform safety protection action when the vehicle collides, the power mechanism can timely generate power in response to the collision through the rotating device disclosed by the invention to drive the seat to turn to the inside of the vehicle, and for the vehicle which is not provided with a side air curtain, the inside of the vehicle with the seat can be rotated to enable the seat back to contact with the vehicle body when the vehicle collides laterally, so that the driver is prevented from directly colliding with the window glass or the interior trim; when frontal collision or offset collision occurs, the safety airbag can be matched with the main safety airbag and the auxiliary safety airbag for use, so that the head of a driver and an occupant is prevented from sliding from one side of the front exhaust airbag due to collision inertia in the offset collision, and the driver and the occupant are protected; for vehicles not equipped with an airbag, the rotating device disclosed by the invention can also protect the safety of drivers and passengers and improve the safety of the drivers and passengers.

As a manner of realization, as shown in fig. 2 and 3, the vehicle seat rotating apparatus further includes: and a locking mechanism 50, the locking mechanism 50 being connected to the fixing portion 10 and the connecting portion 20, respectively, to lock the seat after the seat is rotated by a predetermined angle. The seat is beneficial to keeping the seat stable and preventing the seat from rotating back and forth. The locking mechanism 50 may be based on a pin and pin hole fit, a snap and buckle fit, etc., as embodiments of the present disclosure are not particularly limited. As long as the lock mechanism 50 can lock the seat after the seat is rotated by a predetermined angle.

In an implementation manner, the locking mechanism 50 includes a locking member and a locking portion, one of the fixing portion 10 and the connecting portion 20 is provided with the locking portion, and the other is provided with the locking member, and after the connecting portion rotates to a predetermined angle, the locking member is inserted into the locking portion under the action of an elastic member and/or gravity. Specifically, during the seat normal use, the elastic component is in the compression state, and after the seat rotated predetermined angle, under the effect of elastic component, the locking piece was spacing in locking part, and the locking seat prevents that the seat from making a round trip to rotate. This scheme simple structure can effectively realize the seat and rotate predetermined angle back locking. Such as, but not limited to, a pin, a rod or a post, and correspondingly, a groove or a through hole in which the locking portion engages with the locking member. The cross-sectional shapes of the locking member and the locking portion are not limited as long as the end of the locking member contacting the connecting portion 20 can be engaged with the locking portion, and are not limited to circular, rectangular, or other regular or irregular shapes. The elastic member is, for example, but not limited to, a spring, a rubber ring, or the like.

In a specific embodiment, as shown in fig. 2 to 4, the locking mechanism 50 includes a locking pin 51, for the purpose of facilitating production and processing and ensuring normal back and forth movement of the seat, the locking portion is a locking hole 52 formed in the connecting portion 20, a spring 53 is sleeved on the locking pin 51, one end of the locking pin 51 passes through the spring 53 and is fixed on the fixing portion 10, the other end of the locking pin 51 contacts with the surface of the connecting portion 20 facing the fixing portion 10, the spring 53 is in a compressed state, and when the connecting portion 20 rotates to a predetermined angle, the locking pin 51 is inserted into the locking hole 52 under the action of the spring 53 to achieve locking. Any fixing connection method can be adopted between the locking pin 51 and the fixing portion 10, such as but not limited to screwing, welding, riveting or stamping sheet metal forming, and the like.

As a realizable manner, a locking pin is installed on the connecting portion 20, a locking hole is opened at the fixing portion, the other end of the locking pin is contacted with the fixing portion 10 when the connecting portion 20 is not rotated due to the gravity of the connecting portion 20 and the seat, and the locking pin is inserted into the locking hole to realize locking after the connecting portion 20 is rotated by a predetermined angle. Likewise, in this embodiment, the locking pin may be sleeved with a spring, and the locking pin is inserted into the locking hole to lock under the action of the spring and gravity.

As shown in fig. 1-5, the transmission mechanism 30 further includes a driving gear 32 and a driven gear 33, which are axially and fixedly connected to the transmission shaft 31 at intervals, the driving gear 32 is connected to the power mechanism 40, and the driven gear 33 is connected to the connecting portion 10 and can drive the connecting portion to rotate. In the embodiment, the power of the power mechanism 40 is transmitted through the gear assembly, the scheme has a simple structure, is easy to realize, and can ensure that the power mechanism 40 drives the seat to reliably rotate.

In a specific embodiment, as shown in fig. 4, the transmission shaft 31 is connected to the center of the fixing portion 10 through a bearing 34, an outer ring of the bearing 34 is in interference fit with the center of the fixing portion 10, the transmission shaft 31 is in interference fit with an inner ring of the bearing 34, as shown in fig. 6, the transmission shaft 31 is axially provided with a key slot 411, the driving gear 32 and the driven gear 33 are respectively connected to the transmission shaft 31 through a key 312 and are respectively fixed through a first fastener 35 and a second fastener 36, and the driving gear 32 and the driven gear 33 are prevented from being displaced in the axial direction of the transmission shaft. Wherein, the key can be a common flat key or a spline; the first fastener 35 may be a screw, bolt, pin, etc., and the second fastener 36 may also be a screw, bolt, pin, etc. As shown in fig. 3 and 4, the driving gear 32 is engaged with the rack end of the piston 43 and is used for transmitting power of the power mechanism 40, as shown in fig. 5, a gear sleeve 37 is sleeved outside the driven gear 33, the gear sleeve 37 is engaged with the driven gear 33, a counter bore is formed in the center of the connecting portion 20, the gear sleeve 37 is installed in the counter bore and is fixedly connected with the connecting portion 20 through a third fastener 38, when the gas generator 41 generates high-pressure gas to push the piston 43 to move, the rack end of the piston 43 is engaged with the driving gear 32 to drive the driving gear 32 and the driven gear 33 to rotate, so that the connecting portion 20 is driven to rotate, and seat rotation is. Wherein the third fastener 38 may be a screw, bolt, pin, etc.

Further, as shown in fig. 7, a limiting structure is provided on the gear sleeve 37 for preventing the gear sleeve 37 from rotating in the counterbore. In this embodiment, since the gear sleeve 37 is fixedly connected to the connecting portion 20 through the third fastening member 38, the limiting structure is beneficial to prevent the driven gear 33 from driving the gear sleeve 37 to rotate under the action of the power mechanism 40 when the third fastening member 38 fails, so that the seat rotation cannot be realized. The limiting structure may be a separate component (e.g., a screw fixed to the axial direction of the gear sleeve 47) disposed on the gear sleeve 37, or may be a structure of the gear sleeve 37 itself. For example, the outer ring of the gear sleeve 37, that is, the joint with the counterbore, is non-circular, for example, the outer ring of the gear sleeve 37 may be triangular, rectangular or circular with a part of circular arc cut away, and is not limited herein.

As an implementation manner, in order to keep the seat still or not moving when the vehicle is not in collision, as shown in fig. 8, the fixing portion 10 is provided with a positioning pin 39 engaged with the driving gear 32 for locking the driving gear 32 against rotation. Is beneficial to the chair not to rotate randomly in the normal use process.

Furthermore, in order to unlock the driving gear 32 and enable the driving gear 32 to rotate when a vehicle collides, a weakening groove is formed in the positioning pin 39, and when the driving gear 32 rotates, the positioning pin 39 automatically breaks from the weakening groove. The arrangement of the weakening groove ensures that the seat does not rotate randomly in normal use, and the rotation of the seat is not influenced when a vehicle collides.

As a practical way, as shown in fig. 1-3 and fig. 9-10, the actuating mechanism 40 includes a gas generator 41 and a cylinder 42, a piston 43 is assembled inside the cylinder 42, a piston end of the piston 43 is located inside the cylinder 42, the other end of the piston 43 is provided with a meshing part (rack), a rack end of the piston 43 is connected with the transmission mechanism 30, an air outlet of the gas generator 41 is located in a closed space formed by the cylinder 42 and the piston end of the piston 43, and after the high-pressure gas is ejected from the gas generator 41, the piston 43 performs a piston motion to drive the transmission mechanism 30 to move. In a specific embodiment, an end cover 44 is further provided at the end of the cylinder 42 for sealing the cylinder 42, and the rack end of the piston 43 is connected to the transmission mechanism 140 through the end cover 44.

In the present embodiment, the gas generator 41 may be connected to an airbag ECU of the vehicle, and when the sensor detects that the collision acceleration is higher than a predetermined value at the moment of a collision accident and the driver or passenger does not move yet, an ignition signal is transmitted to the gas generator 41 to ignite and generate high-pressure gas. The gas generator 41 is widely used in vehicle safety systems, the gas generator is used as a power source of the power mechanism 40, the gas outlet of the gas generator 41 is positioned in a closed space formed by the cylinder 42 and the piston end of the piston 43, and the gas generator 41 is used for releasing a large amount of high-speed gas to push the piston 43 to move. The power mechanism 40 adopts a mechanical design, and the gas generator 11 can respond to collision in time to generate power, so that the conditions of delay and control failure possibly caused by adopting an electric control mode or other modes can be avoided, the reliability of the seat rotation action is ensured, additional vehicle parts are not required, the cost is saved, the structure is simple, and the realization is easy. As shown in fig. 9 and 10, the cylinder 42 is L-shaped, which is beneficial to saving the installation space of the cylinder.

As a practical way, as shown in fig. 1, an exhaust hole 45 is opened on the outer wall of the cylinder 42, and the exhaust hole 45 is used for exhausting the air after the piston 43 moves to a preset position in the cylinder 42. This arrangement is advantageous in that the vent hole 45 is opened to discharge excess gas after the piston end of the piston 43 stops moving, i.e., the seat rotates to a predetermined angle, thereby preventing the seat from rotating and failing. It should be noted that the preset position corresponds to a predetermined angle of rotation of the seat, that is, a position corresponding to a maximum displacement of the piston end of the piston 43 required to move in the cylinder 42 when the seat rotates to the predetermined angle. Specifically, when the seat does not rotate or rotate to a preset angle, the piston 43 does not move or does not move to a preset position at the moment, the outer wall of the piston 43 shields and seals the exhaust hole 45, and exhaust cannot be performed, only when the seat rotates to a preset angle, the piston 43 moves to the preset position at the moment, the outer wall of the piston 43 just leaves the position of the exhaust hole 45, and the exhaust hole 45 is opened, so that exhaust is realized.

In an implementation manner, as shown in fig. 1 to 5, in order to ensure stable installation of the transmission mechanism 30, the air cylinder 42 is mounted on a bracket 46, and the bracket 46 is fixedly connected to the fixing portion 10. The fixing portion 10 is not limited to a steel plate, and the bracket and the fixing portion 10 may be fixedly connected by any fixing method, for example, the bracket 46 may be fixed to the steel plate by welding. Of course, screwing, riveting or direct stamping sheet metal forming and the like can also be adopted.

As an implementable manner, in order to more conveniently and accurately control the seat to be rotated by the predetermined angle, the seat rotating apparatus for a vehicle further includes a limiting mechanism for limiting a rotation range of the seat to be within a predetermined angle range. According to vehicle inner space, when the design through stop gear was convenient for when the seat was designed, inject seat rotation range in predetermined angle range through design stop gear, be favorable to preventing that seat rotation angle from exceeding predetermined angle to protection driver and crew's safety when can't realizing the vehicle collision, with the security that improves the vehicle.

In a specific embodiment, as shown in fig. 2-3, the limiting mechanism includes a limiting hole 61 and a fastening member 62, the limiting hole 61 is opened on the connecting portion 10, one end of the fastening member 62 passes through the limiting hole 61 to be fixedly connected with the fixing portion 10, the other end of the fastening member 62 is located in the limiting hole 61, and the limiting hole 61 is along the rotation direction of the connecting portion. The number of the fasteners 62 is the same as that of the limiting holes 61, and may be one, two or more. The position of seting up of spacing hole 61 is corresponding with the position of locking portion, and is exactly when driving connecting portion 20 at power unit 40 and rotate promptly, because connecting portion 20 and fixed part 10 fixed connection are with fastener 62, along with the rotation of connecting portion 20, the relative length direction in spacing hole 61 of fastener 62 produces the displacement, when fastener 62 just moves to the other end from spacing hole 61 one end, the seat rotates to predetermineeing the angle, and at this moment, the locking piece just in time joint is in locking portion. The size of the limiting hole 61 in the length direction is designed according to a predetermined angle, for example, the predetermined angle is 90 degrees, the length of the limiting hole 61 is the arc length of the seat rotating by 90 degrees, and the arc length can be obtained according to a radian calculation formula. For example, the limiting hole 61 may be a kidney-shaped hole, a long hole, a U-shaped hole, or an arc hole, as long as it is a hole having a certain length.

Based on the above embodiment, as shown in fig. 2-3, the fixing portion 10 is further fixedly connected with a supporting column 11, and a free end of the supporting column 11 is in contact with the connecting portion 20. The fixing connection manner of the supporting column 11 may adopt any fixing connection manner, for example, the supporting column 11 may be fixed on the fixing portion 10 by welding. Of course, screwing, riveting or direct stamping sheet metal forming and the like can also be adopted. The number of the supporting columns 11 is not limited, and may be one, two or more than two, and similarly, the supporting columns 11 may be disposed at the middle of the fixing portion 10 near the transmission shaft 31, and may also be uniformly disposed around the fixing portion 10 at intervals. This scheme is favorable to vehicle seat rotary device to bear the weight of driver and passenger and seat, plays the supporting role, avoids fastener 62 or drive mechanism 30 to become invalid, leads to the not effective turned angle who restricts the seat.

In conclusion, the power mechanism of the vehicle seat rotating device disclosed by the invention responds to vehicle collision to generate power, the power can be timely generated at the moment of vehicle collision, the seat is driven to integrally rotate by a preset angle through the transmission mechanism, and the safety of drivers and passengers is ensured. Compared with the prior art, the scheme disclosed by the invention has the advantages that the whole seat is driven to rotate, the rotation angle is increased, and the rotating device disclosed by the invention is not required to be matched with other protection structures, so that the safety of drivers and passengers can be independently protected, the cost is saved, the structure is simple, and the wide application is easy; and the rotation angle of the seat is a preset angle, so that the rotation angle of the seat can be designed in advance according to the internal space of the vehicle and the body type of a driver and a passenger during seat processing, and the rotation reliability of the seat is ensured.

The present invention will be described in detail below with reference to an example.

The vehicle seat rotating device comprises a fixing plate welded on a vehicle bottom metal plate, a seat guide rail bottom welding connecting plate, a support 46 is fixedly connected on the fixing plate through bolts, two ends of the support 46 are fixed on the fixing plate through bolts, a cylinder 42 is installed on the support 46, a gas generator 41 is installed inside the cylinder 42 through a riveting process, a piston 43 is assembled inside the cylinder 42, the piston end of the piston 43 is located inside the cylinder 42, the end part of the cylinder 42 is in threaded connection with an end cover 44 and used for sealing the cylinder 42, and the rack end of the piston 43 penetrates through the end cover to be meshed with the driving gear 32. The piston 43 can do piston motion along the axial direction of the cylinder 42, the air outlet of the gas generator 41 is positioned in a closed space formed by the cylinder 42 and the piston end of the piston 43, the gas generator 41 is connected with an air bag ECU of a vehicle, when a collision accident happens, a sensor detects that the collision acceleration is higher than a specified value, when a driver and a passenger do not move, an ignition signal is transmitted to the gas generator 41 to ignite, the gas generator 41 sprays high-pressure gas, and the piston 43 does piston motion to drive the driving gear 32 to move.

The driving gear 32 is connected to the transmission shaft 31 through a flat key, the transmission shaft 31 is connected with the driven gear 33 through a key, the driving gear 32 and the driven gear 33 are further fixed through a pin, the driving gear 32 and the driven gear 33 are prevented from shifting in the axial direction of the transmission shaft 31, one end of the transmission shaft 31 is in interference fit with an inner ring of the bearing 34, an outer ring of the bearing 34 is in interference fit with the center of the fixing plate, the driven gear 33 is meshed with the gear sleeve 37, the gear sleeve 37 is installed in a counter bore formed in the center of the connecting plate and is fixed through a screw, therefore, the gas generator 41 generates high-pressure gas to drive the piston gear 43 to move, the driving gear 32 is driven to rotate, power is transmitted to the driven gear 33 through the transmission shaft 31, the driven gear 33 is meshed with the gear.

In order to keep the seat stable after rotating, a locking hole 52 is formed in the connecting plate, a through hole for installing a locking pin 51 is formed in the fixing plate, one end of the locking pin 51 is in threaded connection with the through hole, the other end of the locking pin 51 is in contact with the connecting plate, a spring 53 is sleeved on the locking pin 51, when the locking pin 31 is in contact with the connecting plate, the spring 53 is in a compression state, after the connecting plate rotates for a preset angle, the locking pin 51 is just right opposite to the locking hole 52, and under the elastic force action of the spring 53, the locking pin 51 is inserted into the locking hole 52 to lock the rotation of the.

The connecting plate is also provided with a U-shaped hole, the bolt penetrates through the U-shaped hole to be in threaded connection with the fixing plate, the fixing plate is connected with the connecting plate, when the connecting plate rotates, the rotating angle of the connecting plate is limited by the U-shaped hole under the action of the bolt, namely, the preset angle of the connecting plate can be designed in advance through the size of the U-shaped hole in the length direction.

Wherein, still seted up exhaust hole 45 on the outer wall of cylinder 42, when the seat does not rotate or does not rotate to predetermineeing the angle, piston 43 is motionless this moment or has not moved to predetermineeing the position yet, and the outer wall frame of piston 43 shelters from exhaust hole 45 sealed, can't exhaust, rotates to predetermined angle after the seat, and piston 43 this moment moves to predetermineeing the position, and the position of exhaust hole 45 is just left to the outer wall of piston 43, and exhaust hole 45 is opened and is discharged unnecessary gas, guarantees that the seat can be stable after rotating to predetermined angle.

In order to enable the rotating device to bear the weight of the seat and the driver, 4 support columns 11 are fixed on the periphery of the fixing plate through screws, and the support columns 11 are in contact with the connecting plate.

In a second aspect, another embodiment of the present disclosure provides a seat including the vehicle seat rotating apparatus of the above embodiment, wherein the connecting portion 20 is fixedly connected to a rail of the seat bottom, and is fixed as a whole with respect to the seat. The seat of the utility model can be a seat positioned on the driver seat and can also be a seat at other positions in the vehicle. The utility model discloses a seat can rotate certain angle fast when the vehicle bumps, and protection personal safety provides the safety guarantee for the user.

In a third aspect, another embodiment of the present disclosure provides a vehicle, as shown in fig. 11, including a vehicle seat 1 and the vehicle seat rotating device 2 of the first aspect, the vehicle seat bottom rail is fixed on the vehicle seat rotating device 2, and the vehicle seat rotating device 3 is fixed on the vehicle body sheet metal 2.

According to the vehicle provided by the embodiment of the disclosure, through the design of the vehicle seat rotating device, no matter when the vehicle is subjected to front collision, side collision or offset collision, before a driver and passengers react, the seat and the driver and passengers are quickly turned into the vehicle through the vehicle seat rotating device, so that the vehicle body is prevented from being collapsed and directly contacted with the driver and passengers, and the injury to the driver and passengers is reduced; for a vehicle which is not provided with an air bag, the injury of a driver and passengers caused by vehicle collision can be reduced. The scheme disclosed by the invention improves the safety of the vehicle and ensures the safety of drivers and passengers.

It will be understood that any reference to the above orientation or positional relationship as indicated by the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is intended to be based on the orientation or positional relationship shown in the drawings and is for convenience in describing and simplifying the invention, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered as limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A vehicle seat swivel device mounted to a seat bottom, comprising:

a fixed portion adapted to be mounted on a body of a vehicle;

the connecting part is positioned above the fixing part and is suitable for being connected with the seat;

the power mechanism is connected with the transmission shaft;

2. The vehicular seat swiveling apparatus according to claim 1, further comprising:

a locking mechanism, the locking mechanism comprising: the fixing part is provided with a fixing hole, the connecting part is provided with a connecting hole, and the fixing part is provided with a locking pin;

after the connecting part rotates for a preset angle, the locking pin is inserted into the locking hole under the action of an elastic piece and/or gravity, and the position of the seat is locked.

3. The vehicle seat swiveling apparatus according to claim 1, wherein the transmission mechanism further comprises a driving gear disposed on the transmission shaft, and the driving gear is engaged with the power mechanism.

4. The vehicle seat swiveling apparatus according to claim 3, wherein the fixing portion is provided with a positioning pin engaged with the driving gear, and the positioning pin is provided with a weakening groove.

5. The vehicle seat rotating device according to claim 1, wherein the transmission mechanism further includes a driven gear disposed on the transmission shaft, a gear sleeve is sleeved outside the driven gear, the connecting portion has a counter bore, and the gear sleeve is fixedly mounted in the counter bore and engaged with the driven gear.

6. The vehicle seat swiveling apparatus according to claim 1, wherein the power mechanism includes:

the piston is assembled inside the cylinder;

7. The vehicle seat swiveling apparatus according to claim 6, wherein the piston is provided at one end with an engagement portion that is engaged with the transmission mechanism.

8. The vehicle seat swivel arrangement according to claim 6, characterized in that the cylinder is L-shaped.

9. The vehicle seat rotating apparatus according to claim 6, wherein an exhaust hole is opened in an outer wall of the cylinder, and the exhaust hole is used for exhausting air after the piston moves to a preset position in the cylinder.

10. The vehicular seat swiveling apparatus according to any one of claims 1 to 9, further comprising:

the fixing part and the connecting part are connected through the fastening part, and the fastening part enables the connecting part to rotate in the extending direction of the limiting hole.

11. A seat, comprising: the vehicle seat rotating apparatus according to any one of claims 1 to 10.

12. A vehicle characterized by comprising a seat according to claim 11.