CN210793022U

CN210793022U - Folding device and vehicle that can overturn automatically

Info

Publication number: CN210793022U
Application number: CN201921667650.6U
Authority: CN
Inventors: 潘彪
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-19
Anticipated expiration: 2029-09-30

Abstract

The utility model is suitable for a vehicle structure field provides a folding device that can overturn automatically, including can drawing in the returning face plate assembly on the mount pad in, the returning face plate assembly include first returning face plate and can close the lid in the second returning face plate of first returning face plate, first returning face plate rotate connect in the mount pad, the returning face plate assembly is provided with and is used for the drive the second returning face plate is relative first returning face plate slides, just makes the first drive mechanism of second returning face plate upset when sliding. The utility model also provides a vehicle, the seat back of vehicle is provided with the foretell folding device that can overturn automatically. The utility model provides a folding device and vehicle that can overturn automatically, its reasonable limited car inner space that has utilized increases the amusement platform, has brought comfortable experience by bus for the passenger.

Description

Folding device and vehicle that can overturn automatically

Technical Field

The utility model belongs to the vehicle structure field especially relates to a folding device and vehicle that can overturn automatically.

Background

In order to improve the comfort of a user in the riding process, more and more vehicles are provided with a folding table on a seat, and a display device is arranged on the folding table, so that the passenger can enjoy dining, reading and game experience in the journey, and the fatigue of the journey is relieved. Application number "CN 201910296094.4" entitled "carrier device for use in a vehicle" discloses a carrier device for use in a vehicle, comprising: an adapter member mountable on a back of a seat of a vehicle; the panel body is connected to the switching component and can be used for switching between the screen position and the table position, and the panel body comprises a first surface capable of placing articles and a second surface capable of loading the display equipment. The function of loading the display device is added on the basis of the folding table, so that the display device does not need to be assembled to occupy the area of the back of the seat independently. However, the carrying device is manually operated in the using process, the folding table can be opened or closed only by applying relatively strong manual operation, the operation is inconvenient, the abrasion of a transmission mechanism caused by the manual operation cannot be caused, and the stability and the service life of the product cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a folding device and vehicle that can overturn automatically, its reasonable limited car inner space that has utilized increases the amusement platform, has brought comfortable experience by bus for the passenger.

The technical scheme of the utility model is that: the utility model provides a folding device that can overturn automatically, includes the returning face plate assembly that can draw in on the mount pad in, the returning face plate assembly include first returning face plate and can close the lid in the second returning face plate of first returning face plate, first returning face plate rotate connect in the mount pad, the returning face plate assembly is provided with and is used for the drive the second returning face plate is relative first returning face plate slides, just makes the first drive mechanism of second returning face plate upset when sliding.

Optionally, the first transmission mechanism includes a linear driving assembly for driving the second flipping plate to slide linearly and an flipping assembly for driving the second flipping plate to flip during the linear sliding process.

Optionally, the linear driving assembly includes a first driving motor, a lead screw connected to an output shaft of the first driving motor, and a push block in threaded connection with the lead screw;

the turnover assembly comprises a rack and a shaft gear meshed with the rack, the shaft gear is connected with the second turnover plate through a first connecting piece, the racks are symmetrically arranged on two sides of the lead screw, two ends of the push block are respectively and rotatably connected with the shaft gear, and the length of the racks is smaller than the sliding stroke of the second turnover plate.

Optionally, the flipping board assembly is further provided with a second transmission mechanism for driving the first flipping board to rotate relative to the mounting base.

Optionally, the second drive mechanism includes mounting base, rotation axis and locates just be used for the drive on the mounting base rotation axis pivoted drive assembly, the one end of rotation axis with the drive assembly transmission is connected, the helicitic texture that the other end of rotation axis set up, helicitic texture threaded connection has and is used for retraining the fastening nut that the rotation axis removed, the rotation axis is provided with and is used for restricting the stifled commentaries on classics piece of first returning face plate rotation angle.

Optionally, the driving assembly comprises a power assembly, a transmission gear and a transmission shaft, one end of the transmission shaft is rotatably connected with the mounting base, the other end of the transmission shaft is connected with the rotating shaft through a second connecting piece, and the transmission gear is sleeved on the transmission shaft.

Optionally, the drive assembly still including be used for with drive gear meshing will power assembly's output transmission torque transmits for the clutch assembly of transmission shaft, clutch assembly includes the clutch collar, spacing ring and spring, the clutch collar with the spacing ring is all located the transmission shaft, the clutch collar is located drive gear with between the spacing ring, the spring is located the clutch collar with between the spacing ring.

Optionally, the first turnover plate is provided with a first object carrying desktop, two opposite sides of the second turnover plate are respectively provided with a second object carrying desktop and a display desktop, when the second turnover plate covers the first turnover plate, the display desktop is attached to the first object carrying desktop, the first turnover plate displays the second object carrying desktop after rotating, and the second turnover plate displays the display desktop and the first object carrying desktop when being turned over relative to the first turnover plate.

Optionally, the display desktop is connected with a display terminal through a fixing part; and/or the display desktop is also provided with a clamping component for clamping the display terminal.

The utility model also provides a vehicle, the seat back of vehicle is provided with the folding device that can overturn automatically.

The utility model provides a folding device and vehicle that can overturn automatically, the returning face plate assembly can be collected and hide at the seat back, can improve space utilization, through being provided with first drive mechanism and second drive mechanism on the returning face plate assembly, realizes the automatic switch-over of the different operating condition of returning face plate assembly, official working, amusement etc. use easy operation convenience, and use reliability and stability good. The second transmission mechanism is used for controlling the turnover plate assembly to integrally rotate, and opening the second carrying tabletop from an initial folding state to carry articles to be placed by passengers, and in the process of controlling the turnover plate assembly to rotate, if the turnover plate assembly is subjected to an external force (such as an obstacle exists on a rotating path of the turnover plate assembly), the connection between a transmission gear in the driving assembly and a transmission shaft can be temporarily released under the action of the clutch assembly, so that the output transmission torque of the power assembly cannot be transmitted to the hollow shaft, and the second transmission mechanism is prevented from being damaged due to overload; first drive mechanism is used for driving the upset of second returning face plate, open first year thing desktop and show the desktop, first year thing desktop can bear the article that the passenger need placed equally, realize looking the screen through the display terminal that can also show the desktop and play, operations such as recreation amusement, increase passenger's the experience of taking, second drive mechanism is through combining the straight line drive assembly rack and shaft gear engagement transmission mode in the subassembly that overturns, only need provide the drive power of a direction, just can change the degree of freedom of two directions, just can adjust the distance between second returning face plate and the passenger and adjust the demonstration desktop angle through the straight line drive assembly promptly, effectual improvement passenger's visual experience, the passenger causes eyes fatigue and eyes ametropia scheduling problem when closely using easily when having improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded schematic view of an automatically reversible folding device according to an embodiment of the present invention;

fig. 2 is a top view of a second flipping board in the folding device capable of automatically flipping according to an embodiment of the present invention;

fig. 3 is a sectional view of the second turnover plate in the folding device capable of automatically turning over according to the embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of a second transmission mechanism when a second flipping board in the folding device capable of automatically flipping provided by the embodiment of the present invention is flipped;

FIG. 5 is a partial view of the first drive mechanism as the second flipping panel flips;

FIG. 6 is a partial view of the first drive mechanism with the second roll-over panel closed over the first roll-over panel;

fig. 7 is an exploded schematic view of a second transmission mechanism in an automatic foldable device according to an embodiment of the present invention;

fig. 8 is a sectional view of a second transmission mechanism in the folding device capable of automatically turning over according to the embodiment of the present invention;

fig. 9 is an exploded schematic view of a display terminal loaded on a display desktop of an automatically reversible folding device according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating an initial state of an automatic turnover folding device according to an embodiment of the present invention;

fig. 11 is a schematic view of a first working state of an automatic turnover folding device according to an embodiment of the present invention;

fig. 12 is a schematic view of a first operating state of the folding device capable of automatically turning over according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed, connected, or indirectly disposed and connected through intervening components and intervening structures.

In addition, in the embodiments of the present invention, if there are orientations or positional relationships indicated by "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., based on the orientations or positional relationships shown in the drawings or the conventional placement state or use state, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated structure, feature, device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.

As shown in fig. 1 to 3, the embodiment of the utility model provides a folding device that can overturn automatically, including can drawing in the returning face plate assembly 1 on the mount pad in, returning face plate assembly 1 includes first returning face plate 10 and can close the second returning face plate 20 of lid in first returning face plate 10, and first returning face plate 10 rotates to be connected in the mount pad, and returning face plate assembly 1 is provided with and is used for driving the relative first returning face plate 10 of second returning face plate 20 and slides, just makes the first drive mechanism 3 of second returning face plate 20 upset when sliding. Wherein, for ease of understanding, the definitions are: the initial state of the folding device is when the roll-over panel assembly 1 is folded in the mounting seat, the first working state of the folding device is when the first roll-over panel 10 is rotated to a set angle (generally, the first roll-over panel 10 is in a flat state, as shown in fig. 11), and the second working state of the folding device is when the second roll-over panel 20 slides relative to the first roll-over panel 10 and turns over to a set angle (generally, the first roll-over panel 10 is in a flat state and the second roll-over panel 20 is turned over, as shown in fig. 11). The embodiment of the utility model provides a folding device that can overturn automatically, its different operating condition switches as follows, can switch into first operating condition (as shown in fig. 11) by initial condition (as shown in fig. 10), can switch into the second operating condition (as shown in fig. 12) by first operating condition, can switch into first operating condition by the second operating condition, can switch into initial condition by first operating condition. In the process of rotating the first turnover plate 10, the second turnover plate 20 can always cover the first turnover plate 10, that is, the first turnover plate 10 rotates to be substantially the whole rotation of the turnover plate assembly 1, after the first turnover plate 10 rotates to a horizontal state, the second turnover plate 20 can be controlled by the first transmission mechanism 3 to linearly slide relative to the first turnover plate 10, and the first turnover plate 20 can also be turned over relative to the second turnover plate 20 in the sliding process to face the user, so that the use distance and the use angle of the first turnover plate 10 can be adjusted.

In the present embodiment, the description will be made by applying to the vehicle seat 5, and as shown in fig. 10 to 12, the folding device capable of automatically turning may be used as a folding table in a vehicle and fixed to the back surface of the vehicle seat 5 in front of a passenger seat, and the mounting seat may be a seat or may be a mounting base 41 fixed to the back surface of the seat independently. Wherein, the lower extreme of first returning face plate 10 (returning face plate assembly 1) rotates with vehicle seat 5 to be connected, first returning face plate 10 has first year thing desktop 11, have the second respectively on the relative two sides of second returning face plate 20 and carry thing desktop 21 (front) and show desktop 22 (back), show desktop 22 and the laminating of first year thing desktop 11 when second returning face plate 20 closes to cover on first returning face plate 10, show second year thing desktop 21 after first returning face plate 10 is rotatory, show when the relative first returning face plate 10 of second returning face plate 20 overturns and show that display desktop 22 and first year thing desktop 11. In the initial state, the folding device capable of automatically turning is folded on (embedded in) the back of the vehicle seat 5, so that the riding space of a back-row passenger is not occupied, and the riding comfort is good. When a user needs to use the desk function, the first turnover plate 10 (namely the turnover plate assembly 1) is controlled to rotate, the folding device is switched from the initial state to the first working state, the turnover plate assembly 1 is laid flat to display the second carrying desktop 21, and in this state, a passenger can write, read, place a mobile phone, a teacup and the like through the second carrying desktop 21, or the folding device can be used as a toy desk for children, stack building blocks, a playing robot and the like, on the basis of the first working state, the second turnover plate 20 can be controlled to slide linearly and turn over synchronously through the first transmission mechanism 3, the first working state is switched to the second working state to display the first carrying desktop 11 and the display desktop 22, and the passenger can write, read, place a mobile phone, a teacup and the like through the second carrying desktop 21, or can be used as a toy desk for children, stack building blocks, A game robot, etc.; through set up display terminal on showing desktop 22, the passenger accessible display terminal plays the net trip, pursues the drama, operation such as study, and in second returning face plate 20 upset process, both can adjust the distance between showing desktop 22 and the passenger, can adjust again and show desktop 22 towards the angle of passenger, visual fatigue and the ametropia problem of eyes that can effectual improvement passenger closely used and cause when using display terminal, have increased the comfort level and the experience of riding by bus.

In the present embodiment, the orientation of the roll-over board assembly 1 is referred to when the passenger normally sits on the seat (see fig. 10 to 12), that is: in the first operating state, the direction of the first flipping panel 10 close to the passenger is the rear direction, the direction close to the vehicle seat 5 is the front direction, correspondingly, the direction on the left hand of the passenger is the left direction, and the direction on the right hand of the passenger is the right direction.

In practical application, the utility model provides a folding device that can overturn automatically not only can be applied to the inside folding table of vehicle, can also be applied to on-vehicle folding seat, also can be applied to the field of furniture like folding sofa, wherein on first drive mechanism 3 can also be used to the display screen on the vehicle instrument board, realizes the sharp slip of display screen and overturns simultaneously at the sharp slip process.

Alternatively, as shown in fig. 1, 2, 3 and 5, the first transmission mechanism 3 may comprise a linear driving assembly 31 for driving the second flipping board 20 to move linearly and a flipping assembly 32 for driving the second flipping board 20 to flip during the linear sliding process. Wherein linear drive assembly 31 provides the gliding power of straight line for second returning face plate 20, through the cooperation of upset subassembly 32 and linear drive assembly 31 for second returning face plate 20 can overturn relatively first returning face plate 10 in the slip process again, only need use the power that provides a direction promptly, just can realize the slip and the upset action of second returning face plate 20, has practiced thrift the shared space of extra setting rotary mechanism and cost.

Specifically, as shown in fig. 1 and 5, the first transmission mechanism 3 may further include a mounting base 33, and the linear driving assembly 31 and the flipping assembly 32 may be connected to the mounting base 33. In a specific application, the mounting base 33 may have a mounting cavity, and the linear driving assembly 31 and the turnover assembly 32 are both mounted in the mounting cavity.

Alternatively, as shown in fig. 1 to 6, the linear driving assembly 31 may include a first driving motor 311, a lead screw 312, and a push block 312, and the flipping assembly 32 includes a rack 321 and a shaft gear 322. In this embodiment, the first driving motor 311 is located in front of the installation cavity, one end of the screw rod 312 is in transmission connection with an output shaft of the first driving motor 311 through a coupling, the other end of the screw rod 312 points to the rear of the installation cavity, an internal thread through hole is arranged in the middle of the push block 312, the screw rod 312 passes through the internal thread through hole to be in threaded connection with the push block 312, when the screw rod 312 rotates, the push block 312 can move forwards or backwards along the screw rod 312, the number of the racks 321 and the shaft gears 322 is two, the two racks 321 are symmetrically arranged on the left side and the right side of the screw rod 312, the two shaft gears 322 are respectively fixedly connected with the second flipping plate 20 through the first connecting piece 34, and the two shaft gears 322 are respectively located at the left end and the right end. When the first working state is switched to the second working state, when the push block 312 moves forward along the screw 312, the two-axis gear 322 moves forward along with the push block 312, and further drives the second turnover plate 20 to move forward, and in the process of moving forward, the axis gear 322 can be meshed with the rack 321, so that the axis gear 322 rotates in the process of moving forward of the second turnover plate 20, meanwhile, the axis gear 322 moves forward relative to the rack 321, so that the second turnover plate 20 is gradually turned over, and the first driving motor 311 continues to operate until the forward sliding distance and the turnover angle of the second turnover plate 20 meet the use requirements; when the second working state is switched to the first working state, the push block 312 moves backwards along the screw 312, the two-axis gear 322 moves backwards along with the push block 312, and then the second turnover plate 20 is driven to move backwards, the axis gear 322 is meshed with the rack 321, so that the axis gear 322 rotates reversely in the process that the second turnover plate 20 moves backwards, and meanwhile, the axis gear 322 moves backwards relative to the rack 321, so that the second turnover plate 20 is gradually closed until the second turnover plate 20 covers the first turnover plate 10.

Specifically, as shown in fig. 1 to 6, the pushing block 312 may be in a cylindrical shape, end faces of two ends of the pushing block 312 may be provided with a connecting shaft for rotationally connecting with the shaft gear 322, and the shaft gear 322 may rotate relative to the pushing block 312 when receiving an external force (engaging with the rack 321).

Specifically, there is enough damping force between the shaft gear 322 and the connecting shaft, and after the external force is applied and exceeds the maximum damping force, the shaft gear 322 can rotate around the central shaft of the pushing block 312, so as to avoid the second flipping board 20 being switched to the first working state and covering the first flipping board 10 due to accidental stress (such as careless touch) when in the second working state.

Alternatively, as shown in fig. 4, the rack 321 may be an arc-shaped rack, and one end of the arc-shaped rack is connected with an arc-shaped rack, and the arc-shaped rack is close to the rotating end of the second flipping panel 20. The arc-shaped rack is adopted, and the maximum overturning angle of the second overturning plate 20 is controlled according to the radian of the arc-shaped rack, so that the phenomenon that the overturning angle of the second overturning plate 20 is too large and interferes with the mounting seat is avoided, and the first connecting piece 34 between the second overturning plate 20 and the shaft gear 322 is broken.

Alternatively, as shown in fig. 4 to 6, the length of the rack 321 may be smaller than the sliding stroke of the second flipping panel 20, so that there is a process in which the second flipping panel 20 does not flip with respect to the second flipping panel 10 while sliding. The method comprises the following specific steps: when the first working state is switched to the second working state, the second turnover plate 20 moves forward for a certain distance in a state of being covered on the first turnover plate 10, and then the shaft gear 322 is meshed with the rack 321; when the second working state is switched to the first working state, the second flipping board 20 is turned over and covered on the second flipping board 20, and the second flipping board 20 continues to move backward for a certain distance to return to the original position, in this process, the shaft gear 322 is separated from the rack 321. In the embodiment, the seat vehicle seat 5 is installed as an example, and through such a configuration, when the first operating state is switched to the second operating state, under the condition that the distance between the passenger and the back of the vehicle seat 5 is kept unchanged, the second flipping board 20 moves forward by one end distance, and then the shaft gear 322 is engaged with the rack 321, so that the distance between the passenger and the display tabletop 22 can be simply increased by moving the end distance forward of the second flipping board 20, and then the linear motion of the second flipping board 20 is combined with the engagement between the shaft gear 322 and the rack 321 to further adjust the distance between the passenger and the display tabletop 22 and adjust the viewing angle of the passenger on the display tabletop 22.

Specifically, the first driving motor 311 may be a linear stepping motor, and the interaction distance and the flipping angle of the second flipping board 20 are controlled by controlling the frequency and the number of pulses of the pulse signal, so as to meet different visual angle requirements.

Optionally, as shown in fig. 7 and 8, the flipping panel assembly 1 may further be provided with a second transmission mechanism 4 for driving the first flipping panel 10 to rotate relative to the mounting base. The first turnover plate 10 (turnover plate assembly 1) is controlled to rotate through the second transmission mechanism 4, convenience of operation can be improved, mechanism abrasion caused by manual operation is reduced, and reliability and stability of product operation are guaranteed.

Alternatively, it is also possible to connect the first flipping panel 10 to the mounting seat through a damping shaft, and manually flip the first flipping panel 10 to a flat state or flip the first flipping panel 10 reversely to fold on the back of the seat.

In this embodiment, as shown in fig. 7 and 8, the second transmission mechanism 4 is used to drive the first flipping board 10 in an electric manner, the second transmission mechanism 4 includes a mounting base 41, a rotating shaft 42, and a driving assembly 43 disposed on the mounting base 41 and used to drive the rotating shaft 42 to rotate, one end of the rotating shaft 42 is in transmission connection with the driving assembly 43, so that an output transmission torque of the driving assembly 43 can be transmitted to the rotating shaft 42, a thread structure 421 is disposed at the other end of the rotating shaft 42, and the thread structure 421 is in thread connection with a fastening nut 45 for restricting the rotating shaft 42 to move. In this embodiment, the folding device is fixed to the back surface of the vehicle seat 5 through the mounting base 41, the fastening nut 45 can be fixed to the vehicle seat 5, the fastening nut 45 and the mounting base 41 cooperate to restrain the roll-over panel assembly 1, so as to ensure that the roll-over panel assembly 1 only rotates relative to the vehicle seat 5, the rotating shaft 42 is fixedly connected with the roll-over panel assembly 1, and the driving component 43 can drive the roll-over panel assembly 1 to rotate through the rotating shaft 42, so as to realize switching between the initial state and the first working state of the roll-over panel assembly 1.

Specifically, as shown in fig. 7 and 8, the rotating shaft 42 may further be provided with a spacer 422, which can exert wear-resistant and damping force when the rotating shaft 42 is fixedly connected to the flipping panel assembly 1.

Specifically, as shown in fig. 7 and 8, the number of the spacers 422 is at least two, and the spacers 422 may be provided at the middle position of the rotation shaft 42.

Alternatively, as shown in fig. 7 and 8, the driving assembly 43 may include a power assembly 431, a transmission gear 433 and a transmission shaft 432, one end of the transmission shaft 432 is rotatably connected to the mounting base 41, the other end of the transmission shaft 432 is connected to the rotating shaft 42 through a second connection member 4322, and the transmission gear 433 is sleeved on the transmission shaft 432.

In this embodiment, the transmission shaft 432 may be a hollow shaft connected with the rotating shaft 42 through a flange.

Specifically, the end of the hollow shaft connected to the mounting base 41 may be provided with an end cap 49 to prevent foreign matter from entering the hollow shaft, and the transmission assembly further includes a front case and a rear case for protecting the internal components of the transmission assembly, thereby ensuring the stability of the operation of the transmission assembly.

Specifically, the transmission shaft 432 and the rotation shaft 42 may be integrally formed.

Alternatively, as shown in fig. 7 and 8, the rotating shaft 42 may be provided with a rotation blocking piece 46, and the rotation blocking piece 46 may be used to limit the rotation angle of the first flipping panel 10 (flipping panel assembly 1). The rotation blocking members 46 may be provided with two, which are respectively provided at two ends of the rotating shaft 42, one of which is in limit fit with the fastening nut 45, and the other of which is in limit fit with the second connecting member 4322.

In this embodiment, as shown in fig. 11, a rotation angle of 90 ° of the first roll-over plate 10 (roll-over plate assembly 1) can be set, that is, an included angle between the first roll-over plate 10 and the back of the vehicle seat 5 is 90 ° when the first operating state is in the first operating state, an arc groove having a central angle of 90 ° is provided on a side surface of the fastening nut 45 close to the driving component 43, one end of the arc groove is located on a vertical surface where the vehicle seat 5 is located during assembly, the other end of the arc groove is located on a horizontal plane perpendicular to the vertical surface, the second connecting member 4322 is also provided with an arc groove having a central angle of 90 ° under the same condition, and the rotation blocking member 46 is in interactive fit with the. Wherein, the arc length of the arc groove determines the maximum rotation angle of the first turnover plate 10 (turnover plate assembly 1). It is understood that the rotation angle of the first flipping board 10 (flipping board assembly 1) can be other values, such as 80 °, 100 °, etc. Of course, at least one rotation blocking member 46 may be disposed on the rotating shaft 42 and engaged with the fastening nut 45 or the second connecting member 4322.

Optionally, as shown in fig. 7 and 8, the driving assembly 43 may further include a clutch assembly 44 configured to engage with the transmission gear 433 to transmit the output transmission torque of the power assembly 431 to the transmission shaft 432, the clutch assembly 44 includes a clutch collar 441, a limiting ring 443, and a spring 442, the clutch collar 441 and the limiting ring 443 are both sleeved on the transmission shaft 432, the clutch collar 441 is located between the transmission gear 433 and the limiting ring 443, the spring 442 is located between the clutch collar 441 and the limiting ring 443, when the first flipping plate 10 (flipping plate assembly 1) is not subjected to an external force, the spring 442 presses the clutch collar 441 towards the transmission gear 433 under a pre-tightening force of the spring 442 to form an engaged state with the transmission gear 433, the transmission gear 433 is connected with the transmission shaft 432 to transmit the output transmission torque of the power assembly 431 to the transmission shaft 432 so as. In the rotating process of the first roll-over plate 10 (roll-over plate assembly 1), if an obstacle blocks on the rotating path of the first roll-over plate 10 (roll-over plate assembly 1), and the blocking force applied by the obstacle to the first roll-over plate 10 (roll-over plate assembly 1) is greater than the pre-tightening force of the spring 442, the spring 442 is compressed, so that the clutch collar 441 moves in the direction in which the spring 442 is compressed, the state in which the clutch collar 441 is engaged with the transmission gear 433 is released, the output transmission torque of the power assembly 431 cannot be transmitted to the transmission shaft 432, the first roll-over plate 10 (roll-over plate assembly 1) stops rotating, the power assembly 431 is protected, the power assembly 431 is prevented from being damaged due to overload caused by excessive external force, the reliability of the operation of the driving assembly 43 is improved, and at this time, the first roll-over plate 10 (roll-over plate assembly 1) stops rotating and keeps the current position.

Specifically, the left side and the right side of the transmission gear 433 can be respectively provided with an end surface bearing 401 to reduce the end surface resistance of the transmission gear 433 and improve the wear resistance of the transmission gear 433, and under the action of the pre-tightening force of the spring 442, the end surface bearing 401, the transmission gear 433 and the clutch collar 441 are in mutual contact. In practice, the end bearing 401 may be replaced with a teflon washer 422.

Specifically, as shown in fig. 7, a strip-shaped boss 4321 may be disposed on the transmission shaft 432, a notch is disposed on an inner circular wall surface of the clutch collar 441 in contact with the transmission shaft 432, when the clutch collar 441 is sleeved on the transmission shaft 432, the notch and the strip-shaped boss 4321 are matched to enable the clutch collar 441 to slide along the strip-shaped boss 4321, the strip-shaped boss 4321 plays a role in guiding the clutch collar 441 to slide in a clutch state, and meanwhile, the strip-shaped boss 4321 may further constrain the clutch collar 441 to prevent the clutch collar 441 from rotating relative to the transmission shaft 432.

Specifically, a notch (not shown) may be formed in the transmission shaft 432, and a strip-shaped boss 4321 is formed on an inner circular wall surface of the clutch collar 441 in contact with the transmission shaft 432, and the notch and the strip-shaped boss 4321 can achieve the same effect when being matched.

Specifically, as shown in fig. 7, in order to provide a reliable and stable restraining force to the clutch collar 441, the number of the strip-shaped bosses 4321 is at least two, and the strip-shaped bosses 4321 or the notches are distributed on the circumferential surface of the transmission shaft 432 in a circumferential array.

Specifically, as shown in fig. 7, the clutch collar 441 is provided with an engaging protrusion on a side facing the transmission gear 433, the transmission gear 433 is provided with an engaging groove on a side facing the clutch collar 441, or the clutch collar 441 is provided with an engaging groove on a side facing the transmission gear 433, the transmission gear 433 is provided with an engaging protrusion on a side facing the clutch collar 441, the engaging protrusion extends into the engaging groove to form an engaging state under the action of a pre-tightening force of the spring 442, and an output transmission torque of the power assembly 431 is transmitted to the transmission shaft 432 through the transmission gear 433 and the clutch collar 441 to drive the first flipping plate 10 (flipping plate assembly 1) to rotate, so that switching between the initial state and the first working state is achieved. When a barrier exists in the rotation path of the first flipping board 10 (the flipping board assembly 1), and the blocking force applied by the barrier to the first flipping board 10 (the flipping board assembly 1) is greater than the pre-tightening force of the spring 442, because the rotating shaft 42 cannot rotate, the transmission gear 433 rotates in no-load at this time, the engaging protrusion of the clutch collar 441 is ejected out of the engaging groove, the engaging protrusion is ejected out of the engaging groove, the spring 442 is compressed, meanwhile, the clutch collar 441 moves along the strip-shaped boss 4321 towards the direction in which the spring 442 is compressed, the clutch collar 441 and the transmission gear 433 are in a clutch state, the output transmission torque of the power component 431 cannot be transmitted to the transmission shaft 432, the flipping board assembly 1 stops rotating, and overload damage of the power component 431 due to excessive external force caused by interference of the first flipping board 10 (the flipping board assembly 1) and the barrier is avoided.

Specifically, there are at least two meshing protrusions, and correspondingly, there are at least two meshing grooves, which are distributed on the side surface of the clutch collar 441 or the transmission gear 433 in a circumferential array manner.

Specifically, the surface of the engaging projection when engaging with the engaging groove may be an inclined surface, and the guide engaging projection slides out of the engaging groove during clutching and extends into the engaging groove during engagement. Specifically, the shape of the engaging projection is an isosceles trapezoid.

Alternatively, the power assembly 431 includes a second driving motor and a worm, the worm is connected with the output shaft of the first driving motor 311 through a connector, and the worm is meshed with the transmission gear 433 to form a worm and gear structure. In particular, the connector may be a coupling.

Specifically, the second driving motor may be a common motor, and the turning angle of the turning plate assembly 1 is controlled by combining a structure locked-rotor manner, or the second driving motor may be a stepping motor, and may convert an electrical pulse signal into an angular displacement, and under the condition of non-overload, the rotation speed and the stop position of the stepping motor only depend on the frequency and the pulse number of the pulse signal, and the turning angle of the first turning plate 10 (the turning plate assembly 1) may be adjusted by controlling the frequency and the pulse number of the pulse signal.

Alternatively, as shown in fig. 9, the display desktop 22 is connected with a display terminal through a fixing part; and/or the display desktop 22 is further provided with a clamping assembly 24 for clamping the display terminal.

Specifically, the display terminal may be a vehicle-mounted display screen 221, a mobile phone or a tablet computer, so as to meet different use requirements of passengers. For example, the passenger may install his or her own cell phone or tablet computer on the display desktop 22, which facilitates the passenger to use the application on his or her cell phone or tablet computer.

Specifically, in the present embodiment, the on-board display screen 221 is embedded in the display desktop 22 as an example, as shown in fig. 9, an installation groove 25 for bearing the on-board display screen 221 is provided on the display desktop 22, a fixing component for fixing the on-board display screen 221 is provided on a bottom surface of the installation groove 25, clamping components 24 are provided on left and right sides of the installation groove 25, when the on-board display screen 221 is embedded in the installation groove 25, the clamping components 24 on the left and right sides are respectively clamped on left and right sides of the on-board display screen 221, so as to further fix the on-board display screen 221, and can be used for eliminating a gap between the on-board display screen 221 and a wall surface of the installation.

Specifically, the fixing member is a suction cup 23, a magnet, or a gravity bracket.

Specifically, as shown in fig. 9, the clamping assembly 24 includes a clamping block 241 and an elastic member 242 disposed on two opposite sides of the display terminal, the clamping block 241 is slidably connected to the display desktop 22, and the elastic member 242 is disposed on the clamping block 241 and on a side surface away from the clamping block 241 contacting the display terminal.

Specifically, as shown in fig. 9, the upper and lower side wall surfaces of the mounting groove 25 are provided with sliding grooves 251, the upper and lower ends of the clamping block 241 are correspondingly provided with protrusions 423 engaged with the sliding grooves 251, when the protrusions 423 at the upper and lower ends of the clamping block 241 are engaged with the sliding grooves 251 of the upper and lower side wall surfaces of the mounting groove 25, the clamping block 241 can slide relative to the mounting groove 25 along the sliding grooves 251, the elastic members 242 are respectively provided between the left side wall surface of the mounting groove 25 and the left clamping block 241, and between the right side wall surface of the mounting groove 25 and the right clamping block 241, the elastic members 242 are fixedly connected to the clamping block 241, and the clamping block 241 can also be provided with a force application component 241. When the vehicle-mounted display screen 221 is installed, a left external force is applied to the left clamping block 241 and a right external force is applied to the right clamping block 241 through the force application component 2411, the elastic piece 242 is compressed, the distance between the left clamping block 241 and the right clamping block 241 is increased, the vehicle-mounted display screen 221 is conveniently installed in the installation groove 25, then the external forces applied to the left clamping block 241 and the right clamping block 241 are removed, the elastic piece 242 is reset, the left clamping block 241 and the right clamping block 241 are pushed out oppositely, clamping of the vehicle-mounted display screen 221 is assisted, and gaps between the clamping blocks 241 and the vehicle-mounted display screen 221 can be eliminated.

Specifically, the surface of the clamping block 241 contacting the vehicle-mounted display screen 221 may be provided with a rubber pad for protecting the vehicle-mounted display screen 221 and preventing the sliding block from damaging the vehicle-mounted display screen 221, or the clamping block 241 may be a rubber block.

Specifically, the elastic member 242 is a compression spring 442 or a rubber block.

Specifically, a keyboard and a detachable handle can be arranged in the first carrying table top 11, the keyboard is connected with the handle uniform vehicle-mounted display screen 221, the vehicle-mounted display screen 221 can be used as a display, and the game requirements of passengers are met.

The utility model also provides a vehicle, the seat back in the vehicle is provided with the folding device that can overturn automatically on, as shown in fig. 10 to 12. The limited space in the vehicle that can rational utilization, increase returning face plate assembly 1, through switching folding device's different operating condition to realize different sight operations, strengthened passenger and experienced by bus, this folding device has easy and simple to handle, moves reliable, stable advantage, brings good use for the passenger and experiences.

The embodiment of the utility model provides a folding device and vehicle that can overturn automatically, returning face plate assembly 1 can be collected and hide at the seat back, improves space utilization, through being provided with first drive mechanism 3 and second drive mechanism 4 on returning face plate assembly 1, realizes returning face plate assembly 1 different operating condition's automatic switch-over, official working, amusement etc. use easy operation convenience, and use reliability and stability good. The second transmission mechanism 4 is used for controlling the turnover plate assembly 1 to rotate integrally, and opening the second loading table top 21 from an initial furled state to bear articles to be placed by passengers, and in the process of controlling the turnover plate assembly 1 to rotate, if the turnover plate assembly 1 is subjected to an external force (for example, an obstacle is arranged on a rotating path of the turnover plate assembly 1), the connection between the transmission gear 433 in the driving component 43 and the transmission shaft 432 can be temporarily released through the action of the clutch component 44, so that the output transmission torque of the power component 431 cannot be transmitted to the hollow shaft, and the second transmission mechanism 4 is prevented from being damaged due to overload; first drive mechanism 3 is used for driving second returning face plate 20 and overturns, open first year thing desktop 11 and display desktop 22, first year thing desktop 11 can bear the article that the passenger need placed equally, realize the screen broadcast through the display terminal that can also show desktop 22, operation such as recreation amusement, increase passenger's the experience of taking, second drive mechanism 4 is through combining rack 321 and the meshing transmission mode of shaft gear 322 in the upset subassembly 32 with linear drive subassembly 31, only need provide the drive power of a direction, just can change the degree of freedom of two directions, just can adjust the distance between second returning face plate 20 and the passenger and adjust display desktop 22 angle through linear drive subassembly 31, effectual improvement passenger's visual experience, the passenger causes eyes tired and eyes ametropia scheduling problem easily when using closely.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The utility model provides a folding device that can overturn automatically, characterized in that, includes can draw in roll-over plate assembly (1) on the mount pad in, roll-over plate assembly (1) including first roll-over plate (10) and can close lid in second roll-over plate (20) of first roll-over plate (10), first roll-over plate (10) rotate connect in the mount pad, roll-over plate assembly (1) is provided with and is used for the drive second roll-over plate (20) are relative first roll-over plate (10) slide, just make second roll-over plate (20) first drive mechanism (3) of upset when sliding.

2. An automatically reversible folding device according to claim 1, characterized in that said first transmission mechanism (3) comprises a linear driving assembly (43) for driving said second reversing plate (20) to slide linearly and a reversing assembly (32) for driving said second reversing plate (20) to reverse during the linear sliding.

3. An automatically reversible folding device according to claim 2, characterized in that said linear driving assembly (43) comprises a first driving motor (311), a screw rod (312) connected with an output shaft of said first driving motor (311), and a pushing block (313) in threaded connection with said screw rod (312);

upset subassembly (32) including rack (321) and with shaft gear (322) of rack (321) meshing, shaft gear (322) through first connecting piece (34) with second returning face plate (20) are connected, rack (321) symmetry set up in the both sides of lead screw (312), the both ends of ejector pad (313) rotate respectively and are connected with shaft gear (322), the length of rack (321) is less than the slip stroke of second returning face plate (20).

4. An automatically reversible folding device according to any of claims 1 to 3, characterized in that said flipping panel assembly (1) is further provided with a second transmission mechanism (4) for driving said first flipping panel (10) in rotation with respect to said mounting.

5. The folding device capable of automatically turning over according to claim 4, wherein the second transmission mechanism (4) comprises a mounting base (41), a rotating shaft (42) and a driving assembly (43) arranged on the mounting base (41) and used for driving the rotating shaft (42) to rotate, one end of the rotating shaft (42) is in transmission connection with the driving assembly (43), a threaded structure (421) is arranged at the other end of the rotating shaft (42), the threaded structure (421) is in threaded connection with a fastening nut (45) used for restricting the rotating shaft (42) to move, and the rotating shaft (42) is provided with a rotation blocking piece (46) used for limiting the rotating angle of the first turning plate (10).

6. The folding device capable of automatically turning over as claimed in claim 5, wherein the driving assembly (43) comprises a power assembly (431), a transmission gear (433) and a transmission shaft (432), one end of the transmission shaft (432) is rotatably connected to the mounting base (41), the other end of the transmission shaft (432) is connected to the rotating shaft (42) through a second connecting member, and the transmission gear (433) is sleeved on the transmission shaft (432).

7. The folding apparatus capable of automatic flipping as claimed in claim 6, wherein the driving assembly (43) further comprises a clutch assembly (44) for engaging with the transmission gear (433) to transmit the output transmission torque of the power assembly (431) to the transmission shaft (432), the clutch assembly (44) comprises a clutch collar (441), a limiting ring (443) and a spring (442), the clutch collar (441) and the limiting ring (443) are both sleeved on the transmission shaft (432), the clutch collar (441) is located between the transmission gear (433) and the limiting ring (443), and the spring (442) is located between the clutch collar (441) and the limiting ring (443).

8. An automatically reversible folding device according to any one of claims 1 to 3, wherein said first reversible plate (10) has a first loading table top (11), said second reversible plate (20) has a second loading table top (21) and a display table top (22) on opposite sides, respectively, said display table top (22) is attached to said first loading table top (11) when said second reversible plate (20) is closed on said first reversible plate (10), said first reversible plate (10) is rotated to display said second loading table top (21), and said second reversible plate (20) is reversed with respect to said first reversible plate (10) to display said display table top (22) and said first loading table top (11).

9. The folding apparatus capable of automatically turning over as claimed in claim 8, wherein said display table top (22) is connected with a display terminal through a fixing member; and/or the display desktop (22) is also provided with a clamping component (24) used for clamping the display terminal.

10. A vehicle characterized in that a seat back of the vehicle is provided with an automatically reversible folding device as claimed in any one of claims 1 to 9.