CN116476754A - Car roof display screen device with two rotation and one movement - Google Patents

Car roof display screen device with two rotation and one movement Download PDF

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Publication number
CN116476754A
CN116476754A CN202310668301.0A CN202310668301A CN116476754A CN 116476754 A CN116476754 A CN 116476754A CN 202310668301 A CN202310668301 A CN 202310668301A CN 116476754 A CN116476754 A CN 116476754A
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CN
China
Prior art keywords
flexible shaft
longitudinal sliding
sliding block
longitudinal
rack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310668301.0A
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Chinese (zh)
Inventor
盖国华
栾英宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weishimei Technology Beijing Co ltd
Original Assignee
Weishimei Technology Beijing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weishimei Technology Beijing Co ltd filed Critical Weishimei Technology Beijing Co ltd
Priority to CN202310668301.0A priority Critical patent/CN116476754A/en
Publication of CN116476754A publication Critical patent/CN116476754A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/008—Adjustable or movable supports
    • B60R2011/0092—Adjustable or movable supports with motorization

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The invention provides an automobile ceiling display screen device with two rotation and one movement, which comprises a driving assembly, a transmission assembly and a display screen mounting frame; the driving components are arranged into four groups, and the transmission components comprise longitudinal sliding rails, transverse sliding rails, longitudinal sliding blocks, transverse sliding blocks, rack-like flexible shafts, rotating rods, rotating arms, rotating shafts, T-shaped frames and connecting rods; the longitudinal sliding block is arranged in the longitudinal sliding rail; both ends of the transverse sliding rail are fixedly connected with the longitudinal sliding block; the similar rack flexible shaft is connected with the driving component in a meshed manner; the similar rack flexible shaft penetrates into the sliding rail to be connected with the sliding block; the first end of the rotating arm is connected with the longitudinal sliding block through a rotating shaft, the second end of the rotating arm is connected with a T-shaped frame, and the T-shaped frame is rotationally connected with the connecting rod; the rotating rod is connected with the transverse sliding block; the display screen mounting frame is connected with the connecting rod and the rotating rod. The invention adopts a parallel structure, can be retracted and hidden, is convenient to install and stable in transmission, can realize multidimensional angle and different position positioning, can fully meet different user demands, and has great practicability.

Description

Car roof display screen device with two rotation and one movement
Technical Field
The invention relates to the technical field of display screen mounting mechanisms, in particular to an automobile ceiling display screen device with two rotation and one movement functions.
Background
With the increasing degree of automobile intellectualization, in existing automotive interiors, display screens are often provided for rear passengers to view. However, in the current market, the display screen is fixed on the car roof or the front seat, the position and the angle can not be adjusted, but the content on the display screen is difficult to visually and comfortably see because the rear passengers face the display screen at different positions and angles, and the display screen is fixedly exposed outside and can not be moved, turned over and hidden, so that the display screen is easy to collide with and damage, occupies the space in the car, and reduces the humanized and comfortable design effect of the car.
Therefore, it is desirable to provide a vehicle roof display apparatus with two rotations and one movement that can achieve multi-dimensional angle and different position positioning.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the automobile ceiling display screen device with two rotation and one movement, which is structurally optimized, and the longitudinal sliding rail can realize the front-back movement and the front-back overturning of the screen by arranging the driving component, the longitudinal sliding block and the rack-like flexible shaft; the left-right overturning of the screen can be realized by arranging the transverse sliding block, the transverse sliding rail, the similar rack flexible shaft, the connecting rod, the T-shaped frame, the connecting rod and the rotating rod. The invention has stable transmission and can realize the positioning of multidimensional angles and different positions.
The invention is realized by the following technical scheme:
a display screen device of an automobile roof with two rotation and one movement comprises a driving component, a transmission component and a display screen mounting frame,
the driving assembly comprises a first driving assembly, a second driving assembly, a third driving assembly and a fourth driving assembly which are identical in structure, each driving assembly respectively comprises a motor, a speed reducer and a gear meshing device, each gear meshing device comprises a flat gear and a bevel gear, the flat gears are in meshing connection with the bevel gears, the motors are fixedly connected with the speed reducers, and an output shaft of each speed reducer is in key connection with the flat gears;
the transmission assembly comprises a longitudinal sliding rail, a transverse sliding rail, a longitudinal sliding block, a transverse sliding block, a rack-like flexible shaft, a rotating rod, a rotating arm, a rotating shaft, a T-shaped frame and a connecting rod; the longitudinal sliding blocks are arranged in the longitudinal sliding rails at two sides in a sliding manner; the two ends of the transverse sliding rail are fixedly connected with the longitudinal sliding blocks, and the transverse sliding blocks are arranged in the transverse sliding rail in a sliding manner; the first ends of the first type of rack flexible shaft and the second type of rack flexible shaft are connected with the first driving component, the first ends of the third type of rack flexible shaft and the fourth type of rack flexible shaft are connected with the second driving component, and the first ends of the fifth type of rack flexible shaft and the sixth type of rack flexible shaft are connected with the third driving component and the first ends of the seventh type of rack flexible shaft are connected with the fourth driving component in a meshed manner; the second ends of the first type of rack flexible shaft, the second type of rack flexible shaft, the third type of rack flexible shaft, the fourth type of rack flexible shaft, the fifth type of rack flexible shaft and the sixth type of rack flexible shaft penetrate into the longitudinal sliding rail and are connected with the corresponding longitudinal sliding blocks, and the second ends of the seventh type of rack flexible shaft sequentially penetrate through the longitudinal sliding rail, the corresponding longitudinal sliding blocks and the transverse sliding rail and are fixedly connected with the transverse sliding blocks; the first end of the rotating arm is connected with the longitudinal sliding block through a rotating shaft, the second end of the rotating arm is respectively connected with the first end and the second end of the T-shaped frame, the third end of the T-shaped frame is rotationally connected with the first end of the connecting rod, the second end of the connecting rod is respectively rotationally connected with the two longitudinal sides of the display screen mounting frame, the upper end of the rotating rod is connected with the transverse sliding block, and the lower end of the rotating rod is connected with one transverse side of the display screen mounting frame;
Motors in the first driving assembly, the second driving assembly, the third driving assembly and the fourth driving assembly respectively drive a similar rack flexible shaft meshed with the motors to move, and the similar rack flexible shaft drives the longitudinal sliding block to move in the same direction on the longitudinal sliding rail at the same speed, so that the rotating arm, the connecting rod and the display screen mounting frame are driven to move along the longitudinal sliding rail along the transverse sliding rail at the same speed and in the same direction, and the front and back movement of the display screen is realized;
the motor in the first driving assembly and the second driving assembly drives the similar rack flexible shaft meshed with the motor to slide at a vector speed, the similar rack flexible shaft drives the longitudinal sliding block to move at a vector speed on the longitudinal sliding rail, and the T-shaped frame, the connecting rod and the display screen mounting frame are driven to rotate through the rotating arm, so that the front and back overturning of the display screen is realized;
the first driving assembly, the second driving assembly and the third driving assembly stop working, a motor in the fourth driving assembly drives a rack flexible shaft meshed with the motor to slide in the longitudinal sliding rail and the transverse sliding rail, the rack-like flexible shaft drives the transverse sliding block to move on the transverse sliding rail, and the rotating rod performs relative movement to drive the display screen mounting frame to realize left-right overturning of the display screen under the transmission of the connecting rod.
Preferably, the gear engagement device further comprises a bottom plate, a top plate, a round table, a compression ring and a flexible shaft limiting sliding groove block, wherein the bottom plate is arranged on an outer disc of the output shaft of the speed reducer, a flat gear installation groove and a bevel gear installation groove are formed in the center of the bottom plate, a flat gear is arranged in the flat gear installation groove, and a flat key groove formed in the flat gear is in nesting fit with a flat key on the output shaft of the speed reducer; the bevel gear is rotatably embedded in the bevel gear mounting groove and is meshed with the external teeth of the flat gear through the internal tooth groove of the bevel gear; the two sides of the bevel gear installation groove are symmetrically provided with first positioning grooves for installing the flexible shaft limiting chute blocks; the circular table is fixedly connected with the end part of the output shaft of the speed reducer outside the pressing ring; the top plate is fixedly connected with the bottom plate outside the round table; the two sides of the opposite sides of the bottom plate and the top plate are respectively provided with a semicircular flexible shaft driving channel, a circular channel for the passage of the rack-like flexible shaft is formed between the semicircular flexible shaft driving channels and the first positioning groove, and the external tooth graduation circle line of the bevel gear is tangent to the circular channel.
Preferably, a longitudinal sliding block slideway and a longitudinal flexible shaft channel are arranged in the longitudinal sliding rail, the longitudinal sliding block slideway comprises a first longitudinal sliding block slideway and a second longitudinal sliding block slideway, and the longitudinal flexible shaft channel comprises a first longitudinal flexible shaft channel, a second longitudinal flexible shaft channel and a third longitudinal flexible shaft channel; and a transverse sliding block slideway and a transverse flexible shaft channel are arranged in the transverse sliding rail.
Preferably, the longitudinal sliding blocks comprise a first longitudinal sliding block, a second longitudinal sliding block, a third longitudinal sliding block, a fourth longitudinal sliding block, a fifth longitudinal sliding block and a sixth longitudinal sliding block, wherein the first longitudinal sliding block and the second longitudinal sliding block, the third longitudinal sliding block and the fourth longitudinal sliding block are symmetrically arranged in a first longitudinal sliding block slideway of the longitudinal sliding rails at two sides in pairs, the fifth longitudinal sliding block and the sixth longitudinal sliding block are symmetrically arranged in a second longitudinal sliding block slideway of the longitudinal sliding rails at two sides, and a fourth longitudinal flexible shaft channel is arranged on the fifth longitudinal sliding block; the transverse sliding block is arranged into one block and is installed in the transverse sliding block slideway.
Preferably, the first type rack flexible shaft and the second type rack flexible shaft are arranged in pairs and respectively penetrate through a first longitudinal flexible shaft channel at the first end of the longitudinal sliding rail and are respectively and fixedly connected with a first longitudinal sliding block and a third longitudinal sliding block, the third type rack flexible shaft and the fourth type rack flexible shaft are arranged in pairs and respectively penetrate through a first longitudinal flexible shaft channel at the second end of the longitudinal sliding rail and are respectively and fixedly connected with a second longitudinal sliding block and a fourth longitudinal sliding block, the fifth type rack flexible shaft and the sixth type rack flexible shaft are arranged in pairs and respectively penetrate through a second longitudinal flexible shaft channel at the first end of the longitudinal sliding rail and are respectively and fixedly connected with a fifth longitudinal sliding block and a sixth longitudinal sliding block, and one seventh type rack flexible shaft penetrates through a third longitudinal flexible shaft channel at the first end of the longitudinal sliding rail and sequentially penetrates through the fourth longitudinal flexible shaft channel and a transverse sliding block sliding way and is fixedly connected with the transverse sliding block.
Preferably, a flexible pipe is further arranged on the outer side of the rack-like flexible shaft, the flexible pipe is located between the longitudinal sliding rail and the driving assembly, second positioning grooves are formed in two ends of the circular channel, the first end of the flexible pipe is fixed in the second positioning grooves, the rack-like flexible shaft penetrates through the flexible pipe and is meshed with the bevel gears, and the second ends of the flexible pipe are fixedly connected with the end parts of the plurality of longitudinal flexible shaft channels respectively;
the hose comprises two sections of hoses, the two sections of hoses are connected through a hose connecting piece, the hose connecting piece comprises a threaded piece, a nut piece and a locking buckle, and the threaded piece and the nut piece are fixedly connected with one ends of the two sections of hoses respectively and are locked through the locking buckle.
Preferably, the rotating rod comprises a first rotating rod, a second rotating rod and a third rotating rod, and mounting holes are formed in two ends of the first rotating rod; the first end of the second rotating rod is provided with a mounting hole, and the second end of the second rotating rod is provided with a sliding table; the first end of the third rotating rod is provided with a sliding groove, and the second end of the third rotating rod is provided with a mounting hole; the first end of the first rotating rod is rotationally connected with the transverse sliding block through a pin shaft, the second end of the first rotating rod is rotationally connected with the first end of the second rotating rod through a pin shaft, a sliding table at the second end of the second rotating rod is movably connected with a sliding groove at the first end of the third rotating rod, and the second end of the third rotating rod is rotationally connected with the display screen mounting frame through a pin shaft.
Preferably, the rotating arm comprises a first rotating arm, a second rotating arm, a third rotating arm and a fourth rotating arm, wherein first ends of the first rotating arm, the second rotating arm, the third rotating arm and the fourth rotating arm are respectively and fixedly connected with second ends of a rotating shaft, and first ends of the rotating shaft are respectively and rotatably connected with the first longitudinal sliding block, the second longitudinal sliding block, the third longitudinal sliding block and the fourth longitudinal sliding block; the second ends of the first rotating arm, the second rotating arm, the third rotating arm and the fourth rotating arm are all connected with the T-shaped frame; the two ends of the rotating shaft are respectively provided with a shaft shoulder, the first ends of the rotating shaft respectively penetrate through the longitudinal sliding blocks and are axially positioned through shaft end check rings, and friction-resistant plates are respectively arranged between the longitudinal sliding blocks and the shaft shoulders and between the longitudinal sliding blocks and the shaft end check rings.
Preferably, the first ends of the two T-shaped frames are respectively connected with the first rotating arm and the second rotating arm in a rotating way, the second ends of the two T-shaped frames are respectively connected with the third rotating arm and the fourth rotating arm in a fixed way, the third ends of the two T-shaped frames are respectively connected with the first ends of the two connecting rods in a rotating way, and the second ends of the two connecting rods are respectively connected with the display screen mounting frame in a rotating way.
Compared with the prior art, the invention has the following beneficial effects:
1. the automobile roof display screen device with two rotation and one movement is arranged on an automobile roof, and the motors of the four driving components rotate at the same speed to respectively drive seven rack-like flexible shafts to slide at the same speed and in the same direction, so that a plurality of longitudinal sliding blocks are respectively driven to move at the same speed and in the same direction on the longitudinal sliding rails, and the longitudinal sliding blocks respectively drive the rotating arms, the transverse sliding rails and the transverse sliding blocks to move at the same speed and in the same direction, so that the display screen moves forwards and backwards along with the display screen mounting frame.
2. According to the invention, motors of the two driving assemblies rotate at different speeds, respectively drive the similar rack flexible shafts meshed with the two driving assemblies to slide at different speeds (vector speeds in the place) in the hose, at the moment, the other driving assemblies do not work, the transverse sliding rail and the transverse sliding block do not move, and the sliding similar rack flexible shafts respectively drive the longitudinal sliding block connected with the horizontal sliding rail to move at different speeds (vector speeds in the place), so that the rotating arms are driven to rotate, and the rotating arms drive the connecting pieces such as the T-shaped frame, the connecting rod and the display screen mounting frame to rotate, so that the front and back overturning of the display screen is realized.
3. According to the invention, only the motor in one driving assembly rotates to drive the similar rack flexible shaft meshed with the motor to slide in the flexible shaft channels in the longitudinal sliding rail and the transverse sliding rail, the other three driving assemblies do not work, the longitudinal sliding block does not move, the sliding similar rack flexible shaft drives the transverse sliding block to move on the transverse sliding rail, so that the first rotating rod and the second rotating rod are driven to rotate relatively, the second rotating rod and the third rotating rod slide relatively, the third rotating rod drives the display screen mounting frame to rotate left and right under the support of the connecting rod, and the hole axis of the T-shaped frame mounting hole is used as a rotating shaft, so that the left and right overturning of the display screen is realized.
4. The invention is provided with the gear meshing device, the bevel gears are meshed with the similar rack flexible shafts arranged in pairs, and the sliding blocks can conveniently keep the same speed and stably run in the flexible pipes in the symmetrical similar rack flexible shafts by the power of the driving motor.
5. The rotating rods are connected end to end through the three rotating rods, and the sliding tables of the second rotating rod and the third rotating rod are matched with the sliding grooves to provide a stroke for the left-right turning angle of the display screen mounting frame.
6. According to the invention, the two rotating arms positioned on the same side and the two ends of the T-shaped frame are respectively connected in a manner that one end is fixed and the other end rotates, so that the angle of the display screen mounting frame can be freely controlled when the display screen mounting frame turns back and forth according to the needs of a user.
7. The invention has convenient installation, adopts a parallel structure, can be retracted and hidden, has stable transmission, can realize multidimensional angle and positioning at different positions, can fully meet different user demands, and has great practicability.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is an exploded view of the transmission assembly of the present invention;
FIG. 3 is a schematic diagram of the internal principle of the drive assembly of the present invention;
FIG. 4 is a schematic view of the hose connector of the present invention;
FIG. 5a is an exploded view of a second side of the transmission assembly of the present invention;
FIG. 5b is an exploded view of a first side of the transmission assembly of the present invention;
FIG. 5c is an exploded view of the rotary lever according to the present invention;
FIG. 5d is a schematic view of a sliding portion of a rotating lever according to the present invention;
FIG. 6 is an enlarged view of a longitudinal rail according to the present invention;
FIG. 7a is a schematic view of the display screen of the present invention in a parallel stowed state;
FIG. 7b is a schematic diagram showing a display screen in a flipped back and forth state according to the present invention;
fig. 7c is a schematic diagram of the display screen in the left-right flipped state according to the present invention.
The figure indicates:
101. a first drive assembly; 102. a second drive assembly; 103. a third drive assembly; 104. a fourth drive assembly; 11. a motor; 12. a speed reducer; 13. a bottom plate; 14. a top plate; 15. a flat gear; 16. bevel gear; 17. round bench; 18. a compression ring; 19. a flexible shaft limiting chute block;
2. a transmission assembly; 21. a first type of rack flexible shaft; 22. a second type of rack flexible shaft; 23. a third type of rack flexible shaft; 24. a fourth type of rack flexible shaft; 25. a fifth type of rack flexible shaft; 26. a sixth type of rack flexible shaft; 27. a seventh type of rack flexible shaft; 28. a first longitudinal slide; 29. a second longitudinal slide; 210. a third longitudinal slide; 211. a fourth longitudinal slide; 212. a fifth longitudinal slide; 213. a sixth longitudinal slide; 214. a transverse slide block; 215. a first rotating arm; 216. a second rotating arm; 217. a third rotating arm; 218. a fourth rotating arm; 219. a rotating shaft; 220. a shaft end retainer ring; 221. a pin shaft; 222. a T-shaped frame; 223. a connecting rod; 224. a first rotating lever; 225. a second rotating lever; 226. a third rotating lever; 227. a transverse slide rail; 228. a longitudinal slide rail; 229. a hose connector; 230. a screw; 231. a nut member; 232. locking buckles; 233. a hose; 234. friction-resistant sheet; 236. a fourth longitudinal flexible shaft channel; 237. a first longitudinal slider slide; 238. a second longitudinal slider slide; 239. a first longitudinal flexible shaft channel; 240. a second longitudinal flexible shaft channel; 241. a third longitudinal flexible shaft channel;
3. A display screen mounting rack; 31. a first mounting hole; 32. a second mounting hole; 33. a third mounting hole; 34. a fourth mounting hole; 35. a fifth mounting hole; 36. a sixth mounting hole; 37. a seventh mounting hole;
4. a display screen;
51. a sliding table; 52. a chute; 53. a slot hole for limiting; 54. a bolt fixing hole; 55. a bolt; 56. and (3) a nut.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The invention relates to a vehicle roof display device with two rotation and one movement, which comprises a driving assembly, a transmission assembly 2 and a display mounting frame 3. The driving components comprise a first driving component 101, a second driving component 102, a third driving component 103 and a fourth driving component 104 which are identical in structure, each driving component respectively comprises a motor 11, a speed reducer 12 and a gear meshing device, each gear meshing device comprises a flat gear 15 and a bevel gear 16, the flat gears are in meshed connection with the bevel gears, the motor 22 is fixedly connected with the speed reducer 12, and an output shaft of the speed reducer is in key connection with the flat gears. Specifically, the gear engagement device further comprises a bottom plate 13, a top plate 14, a round table 17, a compression ring 18 and a flexible shaft limiting sliding groove block 19, wherein the bottom plate is arranged on an outer disc of the output shaft of the speed reducer, a flat gear installation groove and a bevel gear installation groove are formed in the center of the bottom plate 13, a flat gear 15 is arranged in the flat gear installation groove, and a flat key groove formed in the flat gear is in nested fit with a flat key on the output shaft of the speed reducer; the bevel gear 16 is rotatably embedded in the bevel gear mounting groove and is meshed with the external teeth of the flat gear through the internal tooth groove; the two sides of the bevel gear mounting groove are symmetrically provided with first positioning grooves for mounting the flexible shaft limiting chute blocks 19; the compression ring 18 is nested at the end part of the output shaft of the speed reducer and presses the bevel gear 16, and the round table 17 is fixedly connected with the end part of the output shaft of the speed reducer at the outer side of the compression ring 18; the top plate 14 is fixedly connected with the bottom plate 13 at the outer side of the circular truncated cone; two sides of the opposite sides of the bottom plate and the top plate are respectively provided with a semicircular flexible shaft driving channel, a circular channel for the passage of the rack-like flexible shaft is formed between the semicircular flexible shaft driving channels which are symmetrically arranged and the first positioning groove, and the external tooth indexing circular line of the bevel gear 16 is tangential to the circular channel.
The transmission assembly 2 comprises a longitudinal sliding rail 228, a transverse sliding rail 227, a longitudinal sliding block, a transverse sliding block 214, a rack-like flexible shaft, a rotating rod, a rotating arm, a rotating shaft 219, a T-shaped frame 222 and a connecting rod 223; the longitudinal sliding blocks are arranged in the longitudinal sliding rails at the two sides in a sliding way; two ends of the transverse sliding rail are fixedly connected with the longitudinal sliding blocks, and the transverse sliding blocks are arranged in the transverse sliding rail in a sliding manner; the rack-like flexible shafts comprise a first rack flexible shaft 21, a second rack flexible shaft 22, a third rack flexible shaft 23, a fourth rack flexible shaft 24, a fifth rack flexible shaft 25, a sixth rack flexible shaft 26 and a seventh rack flexible shaft 27, wherein the first ends of the first rack flexible shaft and the second rack flexible shaft are in meshed connection with the first driving component 101, the first ends of the third rack flexible shaft and the fourth rack flexible shaft are in meshed connection with the second driving component 102, the first ends of the fifth rack flexible shaft and the sixth rack flexible shaft are in meshed connection with the third driving component 103, and the first ends of the seventh rack flexible shaft are in meshed connection with the fourth driving component 104; the second ends of the first type of rack flexible shaft, the second type of rack flexible shaft, the third type of rack flexible shaft, the fourth type of rack flexible shaft, the fifth type of rack flexible shaft and the sixth type of rack flexible shaft penetrate into the longitudinal sliding rail 228 and are connected with the corresponding longitudinal sliding blocks, and the second end of the seventh type of rack flexible shaft sequentially penetrates through the longitudinal sliding rail 228, the corresponding longitudinal sliding blocks and the transverse sliding rail 227 and are fixedly connected with the transverse sliding blocks 214; the first end of the rotating arm is connected with the longitudinal sliding block through the rotating shaft 219, the second end of the rotating arm is connected with the first end and the second end of the T-shaped frame 222 respectively, the third end of the T-shaped frame is rotationally connected with the first end of the connecting rod 223, the second end of the connecting rod is rotationally connected with the two longitudinal sides of the display screen mounting frame 3 respectively, the upper end of the rotating rod is connected with the transverse sliding block 214, and the lower end of the rotating rod is connected with one transverse side of the display screen mounting frame 3.
The motors 11 in the first driving assembly 101, the second driving assembly 102, the third driving assembly 103 and the fourth driving assembly 104 respectively drive the similar rack flexible shafts meshed with the motors to move, the similar rack flexible shafts drive the longitudinal sliding blocks to move in the same direction on the longitudinal sliding rails 228 at the same speed, and the rotating arms, the connecting rods 223 and the display screen mounting frames 3 all move in the same direction along with the transverse sliding rails 227 at the same speed, so that the front and back movement of the display screen is realized. The third driving assembly 103 and the fourth driving assembly 104 stop working, the motor 11 in the first driving assembly 101 and the second driving assembly 102 drives the similar rack flexible shaft meshed with the motor to slide at a vector speed, the similar rack flexible shaft drives the longitudinal sliding block to move at a vector speed on the longitudinal sliding rail 228, and the rotating arm drives the T-shaped frame 222, the connecting rod 223 and the display screen mounting frame 3 to rotate, so that the front and back overturning of the display screen 4 is realized. The first driving assembly 101, the second driving assembly 102 and the third driving assembly 103 stop working, the motor 11 in the fourth driving assembly 104 drives the rack flexible shaft meshed with the motor to slide in the longitudinal sliding rail 228 and the transverse sliding rail 227, the rack-like flexible shaft drives the transverse sliding block 214 to move on the transverse sliding rail 227, and the rotating rods move relatively to each other to drive the display screen mounting frame 3 to realize left-right overturning of the display screen 4 under the transmission of the connecting rod 223.
The invention relates to an automobile ceiling display device with two rotation and one movement, which is shown in fig. 1, and comprises a driving assembly, a transmission assembly 2, a display screen mounting frame 3 and a display screen 4, wherein the driving assembly, the transmission assembly 2, the display screen mounting frame 3 and the display screen 4 are connected with a control system, and the display screen 4 is fixedly arranged on the display screen mounting frame 3. The driving components are arranged into four groups, namely a first driving component 101, a second driving component 102, a third driving component 103 and a fourth driving component 104, and the structural composition and the working principle of the four driving components are identical.
As shown in fig. 2 and 3, each driving assembly includes a motor 11, a speed reducer 12, a bottom plate 13, a top plate 14, a flat gear 15, a bevel gear 16, a circular table 17, a compression ring 18 and a flexible shaft limit chute block 19. The speed reducer is a worm gear speed reducer, and the output shaft of the speed reducer is provided with a spline.
The transmission assembly 2 includes a first type rack flexible shaft 21, a second type rack flexible shaft 22, a third type rack flexible shaft 23, a fourth type rack flexible shaft 24, a fifth type rack flexible shaft 25, a sixth type rack flexible shaft 26, a seventh type rack flexible shaft 27, a first longitudinal slide 28, a second longitudinal slide 29, a third longitudinal slide 210, a fourth longitudinal slide 211, a fifth longitudinal slide 212, a sixth longitudinal slide 213, a transverse slide 214, a first rotating arm 215, a second rotating arm 216, a third rotating arm 217, a fourth rotating arm 218, a rotating shaft 219, a shaft end retainer 220, a pin 221, a T-shaped frame 222, a connecting rod 223, a first rotating rod 224, a second rotating rod 225, a third rotating rod 226, a transverse slide 227, a longitudinal slide 228, a hose connector 229, a hose 233, and a wear plate 234.
Semicircular flexible shaft driving channels are symmetrically arranged on two sides of the bottom plate 13 and the top plate 14, a flat gear installation groove and a bevel gear installation groove are formed in the center of the bottom plate 13, and first positioning grooves are formed in the left side and the right side of the bevel gear installation groove and used for positioning and installing the flexible shaft limiting sliding groove blocks 19. Two opposite ends of the two semicircular flexible shaft driving channels, namely the front side and the rear side of the first positioning groove, are provided with second positioning grooves for fixing the end parts of the flexible pipes.
The bottom plate 13 is installed on the outer disc of the output shaft of the speed reducer through a positioning hole, one surface of the bottom plate 13 with a semicircular flexible shaft driving channel is contacted with the top plate 14 and fixed through screws, so that two circular pipelines for the rack-like flexible shaft to pass through are formed, and the end parts of the flexible pipes 233 are installed in second positioning grooves at two ends of the two circular pipelines.
The flat gear 15 is provided with a flat key groove which is nested and matched with a flat key on the output shaft of the speed reducer, so that power transmission is realized. The inside of the bevel gear 16 is provided with an inner tooth socket, the bevel gear 16 is rotatably arranged in a corresponding bevel gear installation groove between the bottom plate 13 and the top plate 14, and the pitch circle line of the bevel gear 16 is flush and tangent with a circular pipeline between the top plate 14 and the bottom plate 13 through the nested cooperation of the inner tooth socket and the outer tooth of the flat gear 15. The flexible shaft limiting sliding groove blocks 19 are arranged in the corresponding first positioning grooves between the bottom plate 13 and the top plate 14, and flexible pipes are arranged at two ends of the circular pipeline and used for enabling the rack-like flexible shaft to pass through and limiting sliding of the rack-like flexible shaft.
As shown in fig. 3, the first ends of the first type rack flexible shaft 21 and the second type rack flexible shaft 22 respectively pass through two circular passages of the first driving assembly 101. The first ends of the third and fourth types of rack flexible shafts 23, 24 pass through two circular channels of the second drive assembly 102, respectively. The first ends of the fifth type rack flexible shaft 25 and the sixth type rack flexible shaft 26 pass through two circular channels of the third driving assembly 103, respectively. The first end of the seventh rack flexible shaft 27 passes through one of the circular channels of the fourth drive assembly 104. All the rack-like flexible shafts pass through the flexible tube 233 and are meshed with the bevel gear 16 in the circular channel, and are firmly meshed under the limitation of the flexible shaft limiting chute block 19. The helical gear 16 rotates to drive the rack-like flexible shaft to precisely slide in the hose 233 and the circular channel.
The hose 233 can be split into two sections, the two sections of hoses 233 can be connected through the hose connecting piece 229, the first end of the hose 233 is positioned and installed at the end part of the circular channel between the top plate 14 and the bottom plate 13 through the second positioning groove, the second end of the hose 233 is fixedly connected with the end parts of the longitudinal flexible shaft channel arranged at the end part of the longitudinal sliding rail and the end part of the fourth longitudinal flexible shaft channel 236 on the fifth longitudinal sliding block, and the rack-like flexible shaft penetrates into the hose 233 and slides in the hose.
As shown in fig. 4, the hose connecting member 229 includes a screw member 230, a nut member 231 and a locking buckle 232, wherein the screw member and the nut member are fixedly connected to the ends of the two sections of hose 233 and locked by the locking buckle 232, respectively, and the screw member and the nut member can be coupled together by screw-nut engagement.
The longitudinal sliding blocks comprise a first longitudinal sliding block 28, a second longitudinal sliding block 29, a third longitudinal sliding block 210, a fourth longitudinal sliding block 211, a fifth longitudinal sliding block 212 and a sixth longitudinal sliding block 213, wherein the fifth longitudinal sliding block 212 is provided with a fourth longitudinal flexible shaft channel 236 for the passage of the seventh type of rack flexible shaft 27. The first and second longitudinal sliders 28 and 29, the third and fourth longitudinal sliders 210 and 211 are mounted in pairs in the first longitudinal slider slide 237 of the two-sided longitudinal slide 228, respectively. The fifth and sixth longitudinal slides 212, 213 are mounted in the second longitudinal slide tracks 238 of the two-sided longitudinal slide rail 228, respectively. The lateral slider 214 is mounted in a lateral slider slide of a lateral slide rail 227. The first longitudinal sliding block 28 is fixedly connected with the first type of rack flexible shaft 21, the second longitudinal sliding block 29 is fixedly connected with the third type of rack flexible shaft 23, the third longitudinal sliding block 210 is fixedly connected with the second type of rack flexible shaft 22, the fourth longitudinal sliding block 211 is fixedly connected with the fourth type of rack flexible shaft 24, the fifth longitudinal sliding block 212 is fixedly connected with the fifth type of rack flexible shaft 25, the sixth longitudinal sliding block 213 is fixedly connected with the sixth type of rack flexible shaft 26, the transverse sliding block 214 is fixedly connected with the seventh type of rack flexible shaft 27, and all the type of rack flexible shafts can respectively drive the longitudinal sliding blocks and the transverse sliding blocks 214 connected with the first longitudinal sliding block and the second longitudinal sliding block to slide in the longitudinal sliding block slideway and the transverse sliding block slideway.
Both ends of the transverse guide rail 227 are fixedly connected with the fifth longitudinal slide block 212 and the sixth longitudinal slide block 213 respectively, and the transverse guide rail 227 can longitudinally move on the longitudinal slide rail 228 under the driving of the fifth type of rack flexible shaft 25 and the sixth type of rack flexible shaft 26.
As shown in fig. 6, the longitudinal slide rail 228 is provided with a first longitudinal slide rail 237 for the first longitudinal slide 28, the second longitudinal slide 29, the third longitudinal slide 210 and the fourth longitudinal slide 211, a second longitudinal slide rail 238 for the fifth longitudinal slide and the sixth longitudinal slide, a first longitudinal flexible shaft channel 239 for the first type of rack flexible shaft 21, the second type of rack flexible shaft 22, the third type of rack flexible shaft 23 and the fourth type of rack flexible shaft 24, a second longitudinal flexible shaft channel 240 for the fifth type of rack flexible shaft 25, the sixth type of rack flexible shaft 26, and a third longitudinal flexible shaft channel 241 for the seventh type of rack flexible shaft 27. The transverse slide rail 227 is provided with a transverse slide block chute for the transverse slide block 224 and a transverse flexible shaft channel for the passage of the seventh type of rack flexible shaft 27.
The first type rack flexible shaft 21 and the second type rack flexible shaft 22 respectively penetrate into the first longitudinal flexible shaft channel 239 from the first end of the longitudinal slide rail 228 and are respectively fixedly connected with the first longitudinal slide block 28 and the third longitudinal slide block 210. The third type rack flexible shaft 23 and the fourth type rack flexible shaft 24 respectively penetrate into the first longitudinal flexible shaft channel 239 from the second end of the longitudinal slide rail 228 and are respectively fixedly connected with the second longitudinal slide block 29 and the fourth longitudinal slide block 211. The fifth type rack flexible shaft 25 and the sixth type rack flexible shaft 26 respectively penetrate into the second longitudinal flexible shaft channel 240 from the first end of the longitudinal slide rail 228 and are fixedly connected with the fifth longitudinal slide block 212 and the sixth longitudinal slide block 213 respectively. The seventh rack flexible shaft 27 penetrates the third longitudinal flexible shaft channel 241, the fourth longitudinal flexible shaft channel 236 arranged on the fifth longitudinal slide block 212 and the transverse flexible shaft channel arranged on the transverse slide rail from the first end of the longitudinal slide rail 228 in sequence and is fixedly connected with the transverse slide block 214.
The rotating arms include a first rotating arm 215, a second rotating arm 216, a third rotating arm 217 and a fourth rotating arm 218, and both ends of the four rotating arms are respectively provided with mounting holes. The first, second, third and fourth rotating arms 215, 216, 217, 218 are rotatably connected to the first, third, second and fourth longitudinal sliders 28, 210, 29, 211, respectively, by four rotating shafts 219. In this embodiment, the first ends of the four rotating shafts 219 are respectively provided with shaft shoulders, and the first ends of the four rotating shafts penetrate through the first longitudinal sliding block 28, the third longitudinal sliding block 210, the second longitudinal sliding block 29 and the fourth longitudinal sliding block 211 respectively and are axially positioned through the shaft end check rings 220, and friction-resistant plates 234 are arranged between two sides of the plurality of longitudinal sliding blocks and the shaft shoulders and the shaft end check rings 220. The plurality of longitudinal sliders form a clearance fit with a first end of the rotational shaft 219, and the rotational shaft 219 is rotatable about a central axis of the longitudinal slider bore. The second end of the rotation shaft 219 forms an interference fit with the mounting holes of the first ends of the first, second, third and fourth rotation arms 215, 216, 217 and 218, respectively, so as not to be relatively rotatable.
The number of the T-shaped frames 222 is two, the three ends of each T-shaped frame 222 are provided with mounting holes, the second ends of the first rotating arm 215 and the second rotating arm 216 are respectively connected with the mounting holes of the first ends of the two T-shaped frames 222 through pin shafts 221, and the first rotating arm can rotate relative to the T-shaped frames 222. The third rotating arm 217 and the fourth rotating arm 218 are respectively and fixedly connected with the mounting holes at the second ends of the two T-shaped frames 222 through pin shafts 221, and the second rotating arm and the T-shaped frames are mounted in an angle interference fit manner and cannot rotate relatively.
The two connecting rods 223 are all provided with a mounting hole at two ends respectively, the mounting holes at the first ends of the two connecting rods 223 are respectively connected with the mounting holes at the third ends of the two T-shaped frames 222 through pin shafts 221, and the two connecting rods can rotate relatively around the central axis of the mounting holes. The mounting holes of the second ends of the two connection bars 223 are respectively rotatably connected with the two longitudinal sides of the display screen mounting frame 3.
As shown in fig. 5 (c), the rotating lever includes a first rotating lever 224, a second rotating lever 225, and a third rotating lever 226, both ends of the first rotating lever 224 are provided with mounting holes, a first end of the second rotating lever 228 is provided with mounting holes, a second end of the second rotating lever 228 is provided with a slide table 51, a first end of the third rotating lever 226 is provided with a slide groove 52, and a second end of the third rotating lever 226 is provided with mounting holes. The mounting hole at the first end of the first rotating rod 224 is connected to the transverse slider 214 through a pin 221, and the two can rotate relative to each other. The mounting hole at the second end of the first rotating rod 224 is connected to the second rotating rod 225 through a pin 221, and the two can rotate with each other. The sliding table 51 at the second end of the second rotating rod 225 is connected with the sliding groove 52 at the first end of the third rotating rod 226 in a matching manner, and the sliding table 51 and the sliding groove 52 can move relatively, wherein, as shown in fig. 5 (d), a long hole 53 for limiting is arranged on the second rotating rod 225, a bolt fixing hole 54 for limiting is arranged at the first end of the third rotating rod 226, after the second rotating rod 225 penetrates into the sliding groove 52 of the third rotating rod 226, a bolt 56 respectively penetrates through the long hole 53 for limiting of the second rotating rod and the bolt fixing hole 54 for limiting of the third rotating rod 226, and a bolt 55 is fixed on the third rotating rod through a nut 56, so that the sliding limitation of the second rotating rod is realized. The mounting hole at the second end of the third rotating rod 226 is connected with one lateral side of the display screen mounting frame 3 through a pin 221, and the mounting hole can rotate relatively.
In this embodiment, seven mounting holes are provided on the display screen mounting frame 3, and each mounting hole includes a first mounting hole 31, a second mounting hole 32, a third mounting hole 33, a fourth mounting hole 34, a fifth mounting hole 35, a sixth mounting hole 36 and a seventh mounting hole 37, as shown in fig. 5 (c), the first mounting hole, the second mounting hole, the third mounting hole, the fourth mounting hole, the fifth mounting hole and the sixth mounting hole are symmetrically provided on two longitudinal sides of the display screen mounting frame 3, the seventh mounting hole is provided on one lateral side of the display screen mounting frame, and in this embodiment, the first mounting hole 31 and the second mounting hole 32 are respectively connected with the mounting holes on the second ends of the two connecting rods 222 through pins 221, and the first mounting hole, the second mounting hole, the third mounting hole, the fourth mounting hole, the fifth mounting hole and the sixth mounting hole can rotate around the axis of the mounting hole. The seventh mounting hole 37 is rotatably connected to the third rotation lever.
The following describes the embodiments of the present invention further:
and (3) moving back and forth: the motors in the four driving components rotate at the same speed, the helical gear 16 is driven to rotate through the speed reducer 12, so that seven kinds of rack flexible shafts meshed with the helical gear 16 are respectively driven to slide at the same speed and the same direction in a hose, the first kind of rack flexible shaft 21, the second kind of rack flexible shaft 22, the third kind of rack flexible shaft 23, the fourth kind of rack flexible shaft 24, the fifth kind of rack flexible shaft 25 and the sixth kind of rack flexible shaft 26 respectively drive the first longitudinal sliding block 28, the third longitudinal sliding block 210, the second longitudinal sliding block 29, the fourth longitudinal sliding block 211, the fifth longitudinal sliding block 212 and the sixth longitudinal sliding block 213 to move at the same speed and the same direction on the longitudinal sliding rail 228, and the rotating arm and the transverse sliding rail 227 are driven to move at the same speed and the same direction, and the seventh kind of rack flexible shaft 27 and the other six kinds of rack flexible shafts are driven to move at the same speed and the same direction, so that the transverse sliding block 214 only moves longitudinally on the longitudinal sliding rail 228 along the transverse sliding rail 227, and no relative movement is generated, and therefore the rotating arm, the connecting rod 222 and the display screen mounting frame 3 do not move relatively, and only move in the same direction, and the display screen 4 moves forwards (a) is shown in fig. 7).
And (5) turning back and forth: the motors 11 in the first driving component 101 and the second driving component 102 rotate at different speeds, the bevel gears 16 are driven to rotate through the speed reducers 12, so that two kinds of rack flexible shafts meshed with the bevel gears are respectively driven to slide at different speeds (vector speeds in this place) in the hose, at the moment, the third driving component 103 and the fourth driving component 104 do not work, the transverse sliding rail 227 and the transverse sliding block 214 do not move, the first kind of rack flexible shafts 21, the second kind of rack flexible shafts 22, the third kind of rack flexible shafts 23 and the fourth kind of rack flexible shafts 24 respectively drive the first longitudinal sliding block 28, the third longitudinal sliding block 210, the second longitudinal sliding block 29 and the fourth longitudinal sliding block 211 to move at different speeds (vector speeds in this place) on the longitudinal sliding rail 228, and thus the rotating arms are driven to rotate, and the connecting pieces such as the T-shaped frame 222, the connecting rod 223 and the display screen mounting frame 3 are driven to rotate, and the front and back overturning of the display screen 4 can be realized because the rotating arms, the T-shaped frame 222, the connecting rod 223 and the display screen mounting frame 3 do not have rotating pairs in front and back directions, as shown in fig. 7 (b).
Turning left and right: the motor 11 in the fourth driving assembly 104 rotates, the helical gear 16 is driven to rotate through the speed reducer 12, so that the seventh type rack flexible shaft 27 meshed with the helical gear 16 is driven to slide in flexible shaft channels in the longitudinal sliding rail 228 and the transverse sliding rail 227, at the moment, the first driving assembly 101, the second driving assembly 102 and the third driving assembly 103 do not work, the longitudinal sliding block does not move, the seventh type rack flexible shaft 27 drives the transverse sliding block 214 to move on the transverse sliding rail 227, so that the first rotating rod 224 and the second rotating rod 225 are driven to rotate relatively, the second rotating rod 225 and the third rotating rod 226 slide relatively linearly, the third rotating rod 226 drives the display screen mounting frame 3 to rotate and swing in a turnover mode by taking the central axis of the mounting hole 3 of the T-shaped frame 222 as a rotating shaft under the transmission of the connecting rod 224, and accordingly the left-right turnover of the display screen 4 is achieved, as shown in fig. 7 (c).
Preferably, a plurality of longitudinal flexible shaft channels, a plurality of longitudinal sliding block slideways and mounting holes are arranged on the longitudinal sliding rail 228, the longitudinal sliding rail is fixed on the automobile ceiling through the mounting holes and mounting screws, and the longitudinal flexible shaft channels are mainly used for limiting flexible shaft movement and avoiding bending of the flexible shaft, so that the movement precision is improved.
The controller of the motor 11 adopts a Hall switch, can accurately detect current change and feed back signals to the motor, and realizes stable stopping and starting of the motor.
Preferably, the rack-like flexible shaft is suitably bent, and the shaft portion is flocked, so that vibration and noise are reduced, and friction force can be increased.
Preferably, both ends of the longitudinal slide rail 228 and the transverse slide rail 227 are provided with end caps, which limit the sliding block and prevent the sliding block from sliding out.
Preferably, the longitudinal sliding rail 228 and the transverse sliding rail 227 are made of ABS or alloy materials, and can be installed on a ceiling of any vehicle type to achieve any radian attached to the ceiling.
If the invention is only needed to realize the forward and backward translation and forward and backward overturning functions, the connecting rod 223, the T-shaped rod 222, the rotating rod, the transverse sliding rail 227, the transverse sliding block 214, the fifth type rack flexible shaft 25, the sixth type rack flexible shaft 26, the seventh type rack flexible shaft 27, the third driving assembly 103 and the fourth driving assembly 104 are removed, then the third mounting hole 33 and the fourth mounting hole 34 of the screen mounting frame 3 are respectively and rotatably connected with the first rotating arm 215 and the second rotating arm 216 through the rotating shaft 219, the fifth mounting hole 35 and the sixth mounting hole 36 of the screen mounting frame 3 are respectively and fixedly connected with the third rotating arm 217 and the fourth rotating arm 218 through the rotating shaft 219, and the forward and backward translation, forward and backward overturning and positioning of the screen can be realized by controlling the movement amounts of the first longitudinal sliding block 28, the third longitudinal sliding block 210, the second longitudinal sliding block 29 and the fourth longitudinal sliding block 211.
The invention adopts a motor of a driving assembly as power, and the power is respectively transmitted to a first rotating arm, a second rotating arm, a T-shaped frame, a connecting rod and a display screen mounting frame through a rack-like flexible shaft of the driving assembly and a longitudinal sliding block on a longitudinal sliding rail, so that the movement amount of the longitudinal sliding block on the longitudinal sliding rail is controlled to realize the forward-backward translation and the turnover of the display screen. The power is transmitted to the rotating rod and the display screen mounting frame through the rack-like flexible shaft of the transmission assembly and the transverse sliding block on the transverse sliding rail, and the left-right overturning of the display screen can be realized by controlling the transverse moving amount of the transverse sliding block on the transverse sliding rail. The transmission assembly adopts a gear-like rack transmission technology, and can simultaneously drive a single gear-like flexible shaft and a double gear-like flexible shaft according to design requirements, and the gear-like flexible shaft is contained in a hose pipe, so that friction force of the gear-like flexible shaft in a moving process is reduced. The motor rotates to drive the rack-like flexible shaft to slide in the hose pipeline, so that the sliding block, the rotating arm, the connecting rod and the display screen mounting frame are driven to move, the front-back translation, the front-back overturning and the left-right overturning of the display screen are realized, and the display screen can be kept at any angle and any position required by a customer. The sliding rail is made of ABS or alloy materials, the processing mode is injection molding or sheet metal, and the sliding rail can be adapted to any vehicle type ceiling, so that any radian attached to the vehicle ceiling is realized.
The invention has the advantages of simple structure, convenient installation, stable transmission, no maintenance and no noise, and the screen can realize the positioning of multiple dimensions and different positions, can fully meet the requirements of different users, and has the novelty of practicability.
The above embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various simplifications, modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (9)

1. A display screen device of an automobile roof with two rotation and one movement is characterized by comprising a driving component, a transmission component and a display screen mounting frame,
the driving assembly comprises a first driving assembly, a second driving assembly, a third driving assembly and a fourth driving assembly which are identical in structure, each driving assembly respectively comprises a motor, a speed reducer and a gear meshing device, each gear meshing device comprises a flat gear and a bevel gear, the flat gears are in meshing connection with the bevel gears, the motors are fixedly connected with the speed reducers, and an output shaft of each speed reducer is in key connection with the flat gears;
The transmission assembly comprises a longitudinal sliding rail, a transverse sliding rail, a longitudinal sliding block, a transverse sliding block, a rack-like flexible shaft, a rotating rod, a rotating arm, a rotating shaft, a T-shaped frame and a connecting rod; the longitudinal sliding blocks are arranged in the longitudinal sliding rails at two sides in a sliding manner; the two ends of the transverse sliding rail are fixedly connected with the longitudinal sliding blocks, and the transverse sliding blocks are arranged in the transverse sliding rail in a sliding manner; the first ends of the first type of rack flexible shaft and the second type of rack flexible shaft are connected with the first driving component, the first ends of the third type of rack flexible shaft and the fourth type of rack flexible shaft are connected with the second driving component, and the first ends of the fifth type of rack flexible shaft and the sixth type of rack flexible shaft are connected with the third driving component and the first ends of the seventh type of rack flexible shaft are connected with the fourth driving component in a meshed manner; the second ends of the first type of rack flexible shaft, the second type of rack flexible shaft, the third type of rack flexible shaft, the fourth type of rack flexible shaft, the fifth type of rack flexible shaft and the sixth type of rack flexible shaft penetrate into the longitudinal sliding rail and are connected with the corresponding longitudinal sliding blocks, and the second ends of the seventh type of rack flexible shaft sequentially penetrate through the longitudinal sliding rail, the corresponding longitudinal sliding blocks and the transverse sliding rail and are fixedly connected with the transverse sliding blocks; the first end of the rotating arm is connected with the longitudinal sliding block through a rotating shaft, the second end of the rotating arm is respectively connected with the first end and the second end of the T-shaped frame, the third end of the T-shaped frame is rotationally connected with the first end of the connecting rod, the second end of the connecting rod is respectively rotationally connected with the two longitudinal sides of the display screen mounting frame, the upper end of the rotating rod is connected with the transverse sliding block, and the lower end of the rotating rod is connected with one transverse side of the display screen mounting frame;
Motors in the first driving assembly, the second driving assembly, the third driving assembly and the fourth driving assembly respectively drive a similar rack flexible shaft meshed with the motors to move, and the similar rack flexible shaft drives the longitudinal sliding block to move in the same direction on the longitudinal sliding rail at the same speed, so that the rotating arm, the connecting rod and the display screen mounting frame are driven to move along the longitudinal sliding rail along the transverse sliding rail at the same speed and in the same direction, and the front and back movement of the display screen is realized;
the motor in the first driving assembly and the second driving assembly drives the similar rack flexible shaft meshed with the motor to slide at a vector speed, the similar rack flexible shaft drives the longitudinal sliding block to move at a vector speed on the longitudinal sliding rail, and the T-shaped frame, the connecting rod and the display screen mounting frame are driven to rotate through the rotating arm, so that the front and back overturning of the display screen is realized;
the first driving assembly, the second driving assembly and the third driving assembly stop working, a motor in the fourth driving assembly drives a rack flexible shaft meshed with the motor to slide in the longitudinal sliding rail and the transverse sliding rail, the rack-like flexible shaft drives the transverse sliding block to move on the transverse sliding rail, and the rotating rod performs relative movement to drive the display screen mounting frame to realize left-right overturning of the display screen under the transmission of the connecting rod.
2. The automobile ceiling display screen device with two rotation and one movement functions according to claim 1, wherein the gear meshing device further comprises a bottom plate, a top plate, a round platform, a compression ring and a flexible shaft limiting sliding groove block, the bottom plate is mounted on an outer disc of an output shaft of the speed reducer, a flat gear mounting groove and a bevel gear mounting groove are formed in the center of the bottom plate, a flat gear is arranged in the flat gear mounting groove, and a flat key groove formed in the flat gear is in nested fit with a flat key on the output shaft of the speed reducer; the bevel gear is rotatably embedded in the bevel gear mounting groove and is meshed with the external teeth of the flat gear through the internal tooth groove of the bevel gear; the two sides of the bevel gear installation groove are symmetrically provided with first positioning grooves for installing the flexible shaft limiting chute blocks; the circular table is fixedly connected with the end part of the output shaft of the speed reducer outside the pressing ring; the top plate is fixedly connected with the bottom plate outside the round table; the two sides of the opposite sides of the bottom plate and the top plate are respectively provided with a semicircular flexible shaft driving channel, a circular channel for the passage of the rack-like flexible shaft is formed between the semicircular flexible shaft driving channels and the first positioning groove, and the external tooth graduation circle line of the bevel gear is tangent to the circular channel.
3. The display device of the automobile ceiling with two rotation and one movement according to claim 2, wherein a longitudinal sliding block slideway and a longitudinal flexible shaft channel are arranged in the longitudinal sliding rail, the longitudinal sliding block slideway comprises a first longitudinal sliding block slideway and a second longitudinal sliding block slideway, and the longitudinal flexible shaft channel comprises a first longitudinal flexible shaft channel, a second longitudinal flexible shaft channel and a third longitudinal flexible shaft channel; and a transverse sliding block slideway and a transverse flexible shaft channel are arranged in the transverse sliding rail.
4. The display device of claim 3, wherein the longitudinal sliding blocks comprise a first longitudinal sliding block, a second longitudinal sliding block, a third longitudinal sliding block, a fourth longitudinal sliding block, a fifth longitudinal sliding block and a sixth longitudinal sliding block, the first longitudinal sliding block and the second longitudinal sliding block, the third longitudinal sliding block and the fourth longitudinal sliding block are symmetrically installed in a first longitudinal sliding block slideway of two side longitudinal sliding rails, the fifth longitudinal sliding block and the sixth longitudinal sliding block are symmetrically installed in a second longitudinal sliding block slideway of two side longitudinal sliding rails, and a fourth longitudinal flexible shaft channel is arranged on the fifth longitudinal sliding block; the transverse sliding block is arranged into one block and is installed in the transverse sliding block slideway.
5. The display screen device of the automobile ceiling with two rotation and one movement of claim 4, wherein the first type rack flexible shaft and the second type rack flexible shaft are arranged in pairs and respectively penetrate through a first longitudinal flexible shaft channel at a first end of the longitudinal sliding rail and are respectively fixedly connected with a first longitudinal sliding block and a third longitudinal sliding block, the third type rack flexible shaft and the fourth type rack flexible shaft are arranged in pairs and respectively penetrate through a first longitudinal flexible shaft channel at a second end of the longitudinal sliding rail and are respectively fixedly connected with a second longitudinal sliding block and a fourth longitudinal sliding block, the fifth type rack flexible shaft and the sixth type rack flexible shaft are arranged in pairs and respectively penetrate through a second longitudinal flexible shaft channel at the first end of the longitudinal sliding rail and are respectively fixedly connected with a fifth longitudinal sliding block and a sixth longitudinal sliding block, and one seventh type rack flexible shaft penetrates through a third longitudinal flexible shaft channel at the first end of the longitudinal sliding rail and sequentially penetrates through the fourth longitudinal flexible shaft channel and a transverse sliding block sliding rail and is fixedly connected with the transverse sliding block.
6. The display screen device of the automobile ceiling with two rotation and one movement according to claim 2, wherein a hose is further arranged on the outer side of the rack-like flexible shaft, the hose is positioned between the longitudinal sliding rail and the driving assembly, second positioning grooves are formed in two ends of the circular channel, a first end of the hose is fixed in the second positioning grooves, the rack-like flexible shaft penetrates through the hose and is meshed with the bevel gears, and second ends of the hose are fixedly connected with the end parts of the longitudinal flexible shaft channels respectively;
The hose comprises two sections of hoses, the two sections of hoses are connected through a hose connecting piece, the hose connecting piece comprises a threaded piece, a nut piece and a locking buckle, and the threaded piece and the nut piece are fixedly connected with one ends of the two sections of hoses respectively and are locked through the locking buckle.
7. The display device of the automobile ceiling with two rotation and one movement according to claim 1, wherein the rotating rods comprise a first rotating rod, a second rotating rod and a third rotating rod, and both ends of the first rotating rod are provided with mounting holes; the first end of the second rotating rod is provided with a mounting hole, and the second end of the second rotating rod is provided with a sliding table; the first end of the third rotating rod is provided with a sliding groove, and the second end of the third rotating rod is provided with a mounting hole; the first end of the first rotating rod is rotationally connected with the transverse sliding block through a pin shaft, the second end of the first rotating rod is rotationally connected with the first end of the second rotating rod through a pin shaft, a sliding table at the second end of the second rotating rod is movably connected with a sliding groove at the first end of the third rotating rod, and the second end of the third rotating rod is rotationally connected with the display screen mounting frame through a pin shaft.
8. The device of claim 4, wherein the rotating arms comprise a first rotating arm, a second rotating arm, a third rotating arm and a fourth rotating arm, first ends of the first rotating arm, the second rotating arm, the third rotating arm and the fourth rotating arm are respectively and fixedly connected with second ends of rotating shafts, and first ends of the rotating shafts are respectively and rotatably connected with the first longitudinal sliding block, the second longitudinal sliding block, the third longitudinal sliding block and the fourth longitudinal sliding block; the second ends of the first rotating arm, the second rotating arm, the third rotating arm and the fourth rotating arm are all connected with the T-shaped frame; the two ends of the rotating shaft are respectively provided with a shaft shoulder, the first ends of the rotating shaft respectively penetrate through the longitudinal sliding blocks and are axially positioned through shaft end check rings, and friction-resistant plates are respectively arranged between the longitudinal sliding blocks and the shaft shoulders and between the longitudinal sliding blocks and the shaft end check rings.
9. The device of claim 8, wherein first ends of the two T-shaped frames are respectively rotatably connected to the first rotating arm and the second rotating arm, second ends of the two T-shaped frames are respectively fixedly connected to the third rotating arm and the fourth rotating arm, third ends of the two T-shaped frames are respectively rotatably connected to first ends of the two connecting rods, and second ends of the two connecting rods are respectively rotatably connected to the display screen mounting frame.
CN202310668301.0A 2023-06-07 2023-06-07 Car roof display screen device with two rotation and one movement Pending CN116476754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310668301.0A CN116476754A (en) 2023-06-07 2023-06-07 Car roof display screen device with two rotation and one movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310668301.0A CN116476754A (en) 2023-06-07 2023-06-07 Car roof display screen device with two rotation and one movement

Publications (1)

Publication Number Publication Date
CN116476754A true CN116476754A (en) 2023-07-25

Family

ID=87225342

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310668301.0A Pending CN116476754A (en) 2023-06-07 2023-06-07 Car roof display screen device with two rotation and one movement

Country Status (1)

Country Link
CN (1) CN116476754A (en)

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