Vehicle projection curtain system and vehicle interior projection system

Abstract

The invention provides a vehicle projection curtain system and a vehicle interior projection system. The vehicle projection curtain system comprises a curtain folding and unfolding mechanism and a bending guide rail mechanism. The curtain folding and unfolding mechanism comprises a curtain frame, a curtain body installed on the curtain frame in a folding and unfolding mode, a curtain sliding block fixed to the curtain body, a curtain fixing guide rail, a folding and unfolding driving source and a folding and unfolding transmission unit. The curtain fixing guide rail is provided with a first sliding groove. The bending guide rail mechanism comprises a rotating shaft, a curtain movable guide rail rotatably installed on the rotating shaft, a form switching driving source and a switching transmission unit, a second sliding groove is formed in the curtain movable guide rail, and the form switching driving source is connected with the curtain movable guide rail through the switching transmission unit. The rectangular curtain can be stored and unfolded, and the curtain movable guide rails are stored in the side interior space in the curtain storage state, so that the whole curtain has a small occupied space, the abrupt feeling in the vehicle interior environment is avoided, and the attractiveness of the vehicle interior environment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automotive technology, in particular to a vehicle projection screen system and a vehicle interior projection system comprising the same. BACKGROUND

[0002] In order to meet the needs of increasingly high passenger experience in the automotive market, some vehicle models are equipped with a mobile screen system dedicated to rear passengers. However, the development cost of the mobile screen system is high, and the development of the screen moving mechanism of the mobile screen system is also difficult. Based on this, the market has launched a projection screen system dedicated to rear passengers as a replacement for the mobile screen system.

[0003] Generally, the mobile screen system includes a screen winding mechanism and a projector, such as a projection device for vehicle interior disclosed in Chinese Utility Model Patent No. 202320608041.3, which sets the projection screen between the left and right side B pillars of the vehicle and sets the projector below the vehicle roof. Furthermore, the projection screen is wound on a roller shaft pipe, the two ends of the roller shaft pipe are rotatably arranged on a U-shaped frame, the U-shaped frame includes vertically arranged curtain guide rails at both ends, the curtain guide rails are connected to the vehicle body B pillars through connecting plates, the free end of the projection screen is provided with a sliding foot connected with the curtain guide rails in sliding connection, and a driving mechanism for driving the sliding foot to reciprocally slide along the curtain guide rails is arranged on the U-shaped frame. The sliding foot is driven to move along the curtain guide rails by the driving mechanism to realize the storage and expansion of the projection screen.

[0004] However, the above-mentioned prior art projection device for vehicle interior has the following defects: the projection screen expands to a rectangular shape, and the left and right side B pillars of the vehicle are in the shape of an eight-character (or trapezoidal shape), and the two shapes are inconsistent. Therefore, after the projection screen is expanded, a large triangular gap is formed between the left and right sides of the projection screen and the left and right side B pillars of the vehicle. Therefore, the above-mentioned prior art projection device for vehicle interior is additionally provided with a large decorative plate to cover the curtain guide rails and the connecting plates in the U-shaped frame, thereby covering the triangular gap. In this way, the fixed frame part of the left and right sides of the projection screen fixed to the B pillar occupies a large space, and the decorative plate installed in the vehicle interior environment is extremely conspicuous and not aesthetically pleasing. SUMMARY

[0005] In view of the above-mentioned defects of the prior art, the present application aims to provide a vehicle projection screen system which is suitable for the storage and expansion of a rectangular screen and has a small occupied space in the screen storage state.

[0006] In order to achieve the above object, the present application provides a vehicle projection curtain system installed in an interior space of a vehicle, the interior space comprising a top interior space distributed on a top of an interior of a vehicle body and a side interior space distributed on a side of the interior of the vehicle body, the vehicle projection curtain system comprising a curtain folding and unfolding mechanism installed in the top interior space and a bending guide rail mechanism installed in the side interior space;

[0007] The curtain folding and unfolding mechanism comprises a curtain frame fixedly arranged, a curtain body foldably installed on the curtain frame, a curtain slider fixedly arranged on a side of the curtain body in a width direction of the curtain body, a curtain fixed guide rail distributed on an outer side of the curtain body in the width direction of the curtain body, a folding and unfolding driving source and a folding and unfolding transmission unit, the curtain fixed guide rail being fixed to the curtain frame and being provided with a first sliding groove, the folding and unfolding driving source being connected to the curtain slider through the folding and unfolding transmission unit;

[0008] The bending guide rail mechanism comprises a rotating shaft fixedly arranged, a curtain movable guide rail rotatably installed on the rotating shaft, a mode switching driving source and a switching transmission unit, the curtain movable guide rail being provided with a second sliding groove, the mode switching driving source being connected to the curtain movable guide rail through the switching transmission unit;

[0009] The vehicle body interior is provided with a first opening portion allowing the curtain body to pass through and a second opening portion allowing the curtain movable guide rail to pass through;

[0010] When the mode switching driving source drives the curtain movable guide rail to rotate outward through the switching transmission unit, the curtain movable guide rail is accommodated in the side interior space, the first sliding groove and the second sliding groove intersect, and the curtain body is accommodated in the top interior space;

[0011] When the mode switching driving source drives the curtain movable guide rail to rotate inward through the switching transmission unit, the curtain movable guide rail extends out of the side interior space, the first sliding groove and the second sliding groove are aligned and communicated, the curtain slider can be slidingly matched with the first sliding groove and the second sliding groove, and the folding and unfolding driving source can drive the curtain slider to move in the first sliding groove and the second sliding groove through the folding and unfolding transmission unit.

[0012] Further, the first sliding groove extends upward and downward; and the bending guide rail mechanism is installed in the side interior space formed by the interior of the vehicle body and a B pillar of the vehicle body;

[0013] When the mode switching driving source drives the curtain movable guide rail to rotate outward to be accommodated in the side interior space, the curtain movable guide rail is in an inclined state, and an inclined direction of the curtain movable guide rail is the same as an inclined direction of the B pillar of the vehicle body;

[0014] When the form switching driving source drives the curtain movable guide rail to rotate inward to the vertical state, the second sliding groove extends upward and downward, and the upper end of the second sliding groove is connected with the lower end of the first sliding groove.

[0015] Further, the curtain body is provided with a curtain slider and a bending guide rail mechanism on both sides thereof; the folding and unfolding driving source is fixedly arranged; the folding and unfolding transmission unit comprises a fixedly installed and rotatable winding component, a first traction rope and a second traction rope both wound on the winding component, and a third traction rope and a fourth traction rope both connected between the curtain sliders on both sides of the curtain body, the folding and unfolding driving source is connected with the winding component, the end of the first traction rope is fixed with the third traction rope through a first anchor point, the end of the second traction rope is fixed with the fourth traction rope through a second anchor point, a part of the third traction rope is bent and accommodated in the curtain movable guide rail on one side of the curtain body, and a part of the fourth traction rope is bent and accommodated in the curtain movable guide rail on the other side of the curtain body.

[0016] When the folding and unfolding driving source drives the winding component to rotate, the first traction rope and the second traction rope are in the winding state and the releasing state respectively, and the moving directions of the first anchor point and the second anchor point are opposite.

[0017] Further, the folding and unfolding transmission unit further comprises a first fixed pulley and a fifth traction rope wound on the first fixed pulley, and the two ends of the fifth traction rope are fixed with the first anchor point and the second anchor point respectively.

[0018] Along the width direction of the curtain body, the first anchor point and the second anchor point are movably distributed between the folding and unfolding driving source and the first fixed pulley.

[0019] Further, the curtain body is provided with a curtain slider and a bending guide rail mechanism on both sides thereof; the folding and unfolding driving source is fixedly arranged; the folding and unfolding transmission unit comprises a fixedly installed and rotatable winding component, a fixed support pulley capable of rotating around a fixed axis, a third traction rope and a fourth traction rope both connected between the curtain sliders on both sides of the curtain body, and a sixth traction rope wound from the fixed support pulley, the folding and unfolding driving source is connected with the winding component, the two ends of the sixth traction rope are wound on the winding component, the part of the sixth traction rope distributed on one side of the fixed support pulley is fixed with the third traction rope through a first anchor point, and the part of the sixth traction rope distributed on the other side of the fixed support pulley is fixed with the fourth traction rope through a second anchor point.

[0020] When the folding and unfolding driving source drives the winding component to rotate, the two ends of the sixth traction rope on the winding component are in the winding state and the releasing state respectively, and the moving directions of the first anchor point and the second anchor point are opposite.

[0021] Further, the retraction and expansion transmission unit further comprises a second fixed pulley and a third fixed pulley symmetrically installed in the top interior space, and a fourth fixed pulley and a fifth fixed pulley symmetrically installed in the curtain movable guide rail, the third traction rope distributed on one side of the first anchoring point is supported by the second fixed pulley, the third traction rope distributed on the other side of the first anchoring point is supported by the third fixed pulley and the fifth fixed pulley, the fourth traction rope distributed on one side of the second anchoring point is supported by the second fixed pulley and the fourth fixed pulley, and the fourth traction rope distributed on the other side of the second anchoring point is supported by the third fixed pulley.

[0022] Further, the retraction and expansion transmission unit further comprises an up-and-down extending traction rope pre-tightening spring, the traction rope pre-tightening spring has two, and is respectively installed on the fourth fixed pulley and the fifth fixed pulley, and the two traction rope pre-tightening springs respectively act on the third traction rope and the fourth traction rope.

[0023] Further, the retraction and expansion transmission unit further comprises an up-and-down extending traction rope pre-tightening spring, the traction rope pre-tightening spring has two, and is respectively installed on the fourth fixed pulley and the fifth fixed pulley, and the two traction rope pre-tightening springs respectively act on the third traction rope and the fourth traction rope.

[0024] Further, the retraction and expansion transmission unit further comprises an up-and-down extending traction rope pre-tightening spring, the traction rope pre-tightening spring has two, and is respectively installed on the fourth fixed pulley and the fifth fixed pulley, and the two traction rope pre-tightening springs respectively act on the third traction rope and the fourth traction rope.

[0025] Further, the switching transmission unit comprises a fixed guide rail accommodated in the side interior space and fixed to the vehicle frame, a driving gear fixedly installed and rotatable, a driving rack engaged with the driving gear, and a first transmission connecting rod, the mode switching driving source is connected with the driving gear, two ends of the first transmission connecting rod are respectively rotatably connected with the driving rack and the curtain movable guide rail, and a rack sliding groove is formed in the curtain frame and the fixed guide rail and slidably matched with the driving rack.

[0026] Further, the switching transmission unit further comprises a passive connecting rod, one end of the passive connecting rod is slidably matched with the rack sliding groove in the fixed guide rail, and the other end is rotatably connected with the curtain movable guide rail, the passive connecting rod is distributed below the first transmission connecting rod and forms an acute angle with the first transmission connecting rod.

[0027] Further, the switching transmission unit comprises a fixing nut accommodated in the side interior space and fixed to the vehicle frame, a transmission screw or transmission screw rod threadedly connected in the fixing nut, and a second transmission link, the switching driving source being connected to the transmission screw or transmission screw rod, and the two ends of the second transmission link being rotatably connected to the transmission screw or transmission screw rod and the curtain movable guide rail respectively.

[0028] Further, the vehicle projection curtain system further comprises a trim plate mechanism, the trim plate mechanism comprising a decorative plate rotatable about a fixed axis, and a trim plate transmission unit, the decorative plate being connected to the curtain movable guide rail through the trim plate transmission unit;

[0029] When the curtain movable guide rail is accommodated in the side interior space, the decorative plate is also accommodated in the side interior space.

[0030] When the curtain movable guide rail is extended from the side interior space and is in a vertical state, at least a part of the decorative plate is extended from the side interior space and covers the gap formed between the curtain movable guide rail and the vehicle interior.

[0031] Further, the decorative plate comprises a plurality of movable trim plates rotatably connected to the rotating shaft, two of the movable trim plates adjacent to the inside and the outside are respectively an inside movable trim plate and an outside movable trim plate, the trim plate transmission unit comprises a compression spring, a transmission recess provided on the outside movable trim plate, and a transmission protrusion provided on the inside movable trim plate, the inside movable trim plate distributed at the innermost side among the plurality of movable trim plates is fixed to the curtain movable guide rail, one end of the compression spring is fixedly provided and the other end is connected to the outside movable trim plate, and the transmission protrusion is capable of being clamped with the transmission recess.

[0032] Further, the trim plate mechanism further comprises a trim plate stopper fixedly provided; when the decorative plate is also accommodated in the side interior space, the trim plate stopper is abutted between the vehicle frame and the outside movable trim plate.

[0033] Further, the decorative plate comprises a plurality of movable trim plates rotatably connected to the rotating shaft, two of the movable trim plates adjacent to the inside and the outside are respectively an inside movable trim plate and an outside movable trim plate, the trim plate transmission unit comprises a trim plate transmission link, a transmission pin fixed on the trim plate transmission link, and a transmission sliding groove opened in the outside movable trim plate, the inside movable trim plate distributed at the innermost side among the plurality of movable trim plates is fixed to the curtain movable guide rail, one end of the trim plate transmission link is movably connected to the transmission component in the switching transmission unit, the other end of the trim plate transmission link is rotatably connected to the curtain movable guide rail, and the transmission pin is movably accommodated in the transmission sliding groove.

[0034] Further, the curtain folding and unfolding mechanism further comprises a curtain lower edge strip fixed at the lower edge of the curtain body, the curtain lower edge strip covering the lower edge of the curtain body along the width direction of the curtain body, and the curtain sliders are two and symmetrically fixed at the two ends of the curtain lower edge strip.

[0035] The application further provides a vehicle interior projection system comprising a projection device and the vehicle projection curtain system as described above; when the curtain body is unfolded downward from the top interior space, the projection device is aligned with the curtain body.

[0036] As described above, the vehicle projection curtain system and the vehicle interior projection system according to the application have the following beneficial effects:

[0037] In the application, through the folding and unfolding of the curtain body and the rotation of the curtain movable guide rail, the following effects can be achieved: when the curtain movable guide rail is stored in the side interior space, the curtain body is not unfolded; when the curtain movable guide rail is extended from the side interior space and rotated to a vertical state, the curtain sliders can move downward or upward along the first sliding groove and the second sliding groove, and the rectangular curtain body is unfolded and stored correspondingly. In this way, the application not only realizes the folding and unfolding of the rectangular curtain, but also makes the overall structure have a smaller occupied space by storing the curtain movable guide rail in the side interior space in the curtain storage state, the overall structure does not protrude from the interior structure of the vehicle body, avoids forming a sense of abruptness in the vehicle interior environment, greatly improves the beauty of the vehicle interior environment, and further improves the use comfort of the application. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 FIG. 1 is a schematic view of the installation of the vehicle projection curtain system according to the application in the vehicle interior.

[0039] Figure 2 FIG. 2 is a storage state view of the vehicle interior projection system according to the application.

[0040] Figure 3 FIG. 3 is a structure schematic view of the curtain folding and unfolding mechanism in the application. Figure 2

[0041] Figure 4 FIG. 4 is an unfolded state view of the vehicle interior projection system according to the application.

[0042] Figure 5 FIG. 5 is a structure schematic view of the curtain folding and unfolding mechanism in the application. Figure 4

[0043] Figure 6 FIG. 6 is a cross-sectional view at the vehicle projection curtain system. Figure 2

[0044] Figure 7 FIG. 7 is a structure schematic view of the vehicle projection curtain system in the application. Figure 6 FIG. 8 is a structure schematic view of the vehicle projection curtain system in the application.​​​

[0045] Figure 8 is a front view of the vehicle projection screen system. Figure 7

[0046] Figure 9 is a front view of the vehicle projection screen system. Figure 4

[0047] Figure 10 is a front view of the vehicle projection screen system. Figure 9

[0048] Figure 11 is a front view of the vehicle projection screen system. Figure 10

[0049] Figure 12 is a front view of the screen retracting mechanism in the present application.

[0050] Figure 13 is a front view of the screen retracting mechanism in the present application. Figure 12

[0051] Figure 14 is a front view of the screen body in the present application. Figure 12

[0052] Figure 15 is an assembly view of the retraction component, the first traction rope and the second traction rope in the present application. Figure 10

[0053] Figure 16 is a structural schematic view after omitting the retraction component in the present application. Figure 15

[0054] is a vertical sectional view of the screen body in the present application. Figure 17 Figure 14 is a horizontal sectional view of the screen body in the present application.

[0055] Figure 18 Figure 14 is a front view of the screen retracting mechanism in the present application.

[0056] Figure 19 is a front view of the screen retracting mechanism in the present application.

[0057] Figure 20 is a front view of the screen retracting mechanism in the present application. Figure 19

[0058] is a front view of the screen retracting mechanism in the present application. Figure 21

[0059] is a front view of the screen retracting mechanism in the present application. Figure 22 Figure 21 Figure 23 ​​​​​​​​​​​This is a front view of Embodiment 4 of the curtain unfolding mechanism in this application, in which the curtain body is in a fully unfolded state.

[0060] Figure 24 This is a front view of Embodiment 5 of the curtain unfolding mechanism in this application, in which the curtain body is in a fully unfolded state.

[0061] Figure 25 This is a front view of Embodiment 1 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0062] Figure 26 for Figure 25 Front view of the central curtain's movable guide rail in a vertical position.

[0063] Figure 27 This is a front view of Embodiment 2 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0064] Figure 28 for Figure 27 Front view of the central curtain's movable guide rail in a vertical position.

[0065] Figure 29 This is a front view of Embodiment 3 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0066] Figure 30 for Figure 29 Front view of the central curtain's movable guide rail in a vertical position.

[0067] Figure 31 This is a front view of Embodiment 4 of the bending guide rail mechanism in this application, in which the curtain movable guide rail is in a retracted state.

[0068] Figure 32 This is a front view of Embodiment 1 of the decorative panel mechanism in this application, in which the decorative panel is in a stowed state.

[0069] Figure 33 for Figure 32 The front view of the decorative panel when it is not fully unfolded.

[0070] Figure 34 for Figure 32 Front view of the decorative panel in its fully extended state.

[0071] Figure 35 This is a front view of Embodiment 2 of the decorative panel mechanism in this application, in which the decorative panel is in a stowed state.

[0072] Figure 36 for Figure 35 Front view of the decorative panel in its fully extended state.

[0073] Figure 37 for Figure 36 Assembly diagram of a vehicle projection screen system.

[0074] Component designation explanation

[0075] 10. Vehicle interior

[0076] 20 Frame

[0077] 21. Top interior space

[0078] 22 Side interior space

[0079] 23. Car roof

[0080] 24. A-pillar of the car body

[0081] 25. B-pillar of the car body

[0082] 26. C-pillar of the car body

[0083] 30 Curtain Removal and Display Organizations

[0084] 301 Curtain Frame

[0085] 302. Curtain Body

[0086] 303 Curtain Slider

[0087] 304 Stainless Steel Curtain Fixing Rail

[0088] 305 Expansion and Retraction Drive Source

[0089] 306 Curtain bottom strip

[0090] 307 Rewinding Unit

[0091] 308 First traction rope

[0092] 309 Second traction rope

[0093] 310 Third traction rope

[0094] 311 Fourth traction rope

[0095] 312 First Anchorage Point

[0096] 313 Second Anchorage Point

[0097] 314 First fixed pulley

[0098] 315 Fifth traction rope

[0099] 316 Second Fixed Pulley

[0100] 317 Third Fixed Pulley

[0101] 318 fourth fixed pulley

[0102] 319 fifth fixed pulley

[0103] 320 traction rope pre-tightening spring

[0104] 321 curtain roller

[0105] 322 roll-back spring

[0106] 323 spring plate

[0107] 324 fixed support pulley

[0108] 325 sixth traction rope

[0109] 40 bending guide rail mechanism

[0110] 401 rotation shaft

[0111] 402 movable guide rail of curtain

[0112] 403 mode switching drive source

[0113] 404 fixed guide rail

[0114] 405 drive gear

[0115] 406 drive rack

[0116] 407 first transmission link

[0117] 408 passive link

[0118] 409 stopper

[0119] 410 sliding block

[0120] 411 fixed nut

[0121] 412 transmission screw

[0122] 413 second transmission link

[0123] 50 trim plate mechanism

[0124] 501 inner movable trim plate

[0125] 502 outer movable trim plate

[0126] 503 compression spring

[0127] 504 transmission protrusion

[0128] 505 trim plate stopper

[0129] 506 trim plate transmission link

[0130] 507 drive pin

[0131] 508 drive chute

[0132] 60 projection device DETAILED DESCRIPTION

[0133] The present application will be described in greater detail by specific embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification.

[0134] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to facilitate the understanding of the contents disclosed in the present specification for those skilled in the art to understand and read, and are not used to limit the defined conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the present specification are merely for the convenience of clear description, and are not used to limit the scope of the present application that can be implemented, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application that can be implemented.

[0135] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a middle element.

[0136] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can implement it, and when the combination of technical solutions appears to be contradictory or unimplementable, it should be considered that the combination of technical solutions does not exist, and is also not within the protection scope required by the present application.

[0137] The present application provides a vehicle projection screen system and a vehicle interior projection system comprising the same. For the convenience of description, in the following embodiments, the width direction of the vehicle is defined as the left-right direction, the length direction of the vehicle is defined as the front-rear direction, and the height direction of the vehicle is defined as the up-down direction.

[0138] AsFigure 1 As shown in the drawings, the vehicle has a vehicle frame 20 and a vehicle interior 10 fixed in the vehicle frame 20, the vehicle frame 20 generally includes a roof 23, a vehicle body A-pillar 24 extending forward from the left and right sides of the front end of the roof 23, a vehicle body B-pillar 25 extending outward and downward from the left and right sides of the roof 23, and a vehicle body C-pillar 26 extending rearward from the left and right sides of the rear end of the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25 and the vehicle body C-pillar 26 are vehicle body side panels, and an interior space of the vehicle is formed between the vehicle frame 20 and the vehicle interior 10. Therefore, the interior space is formed between the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25, the vehicle body C-pillar 26 and the vehicle interior 10. The part of the interior space formed between the roof 23 and the vehicle interior 10 is defined as a top interior space 21, and the part of the interior space formed between the vehicle body B-pillar 25 and the vehicle body C-pillar 26 and the vehicle interior 10 is defined as a side interior space 22, then the top interior space 21 is distributed on the top of the vehicle interior 10, and the side interior space 22 is distributed on the side of the vehicle interior 10. In addition, since the vehicle body B-pillar 25 extends outward and downward, as shown in Figure 6 and Figure 9 As shown in the drawings, the vehicle has a vehicle frame 20 and a vehicle interior 10 fixed in the vehicle frame 20, the vehicle frame 20 generally includes a roof 23, a vehicle body A-pillar 24 extending forward from the left and right sides of the front end of the roof 23, a vehicle body B-pillar 25 extending outward and downward from the left and right sides of the roof 23, and a vehicle body C-pillar 26 extending rearward from the left and right sides of the rear end of the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25 and the vehicle body C-pillar 26 are vehicle body side panels, and an interior space of the vehicle is formed between the vehicle frame 20 and the vehicle interior 10. Therefore, the interior space is formed between the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25, the vehicle body C-pillar 26 and the vehicle interior 10. The part of the interior space formed between the roof 23 and the vehicle interior 10 is defined as a top interior space 21, and the part of the interior space formed between the vehicle body B-pillar 25 and the vehicle body C-pillar 26 and the vehicle interior 10 is defined as a side interior space 22, then the top interior space 21 is distributed on the top of the vehicle interior 10, and the side interior space 22 is distributed on the side of the vehicle interior 10. In addition, since the vehicle body B-pillar 25 extends outward and downward, as shown in

[0139] As shown in the drawings, the vehicle has a vehicle frame 20 and a vehicle interior 10 fixed in the vehicle frame 20, the vehicle frame 20 generally includes a roof 23, a vehicle body A-pillar 24 extending forward from the left and right sides of the front end of the roof 23, a vehicle body B-pillar 25 extending outward and downward from the left and right sides of the roof 23, and a vehicle body C-pillar 26 extending rearward from the left and right sides of the rear end of the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25 and the vehicle body C-pillar 26 are vehicle body side panels, and an interior space of the vehicle is formed between the vehicle frame 20 and the vehicle interior 10. Therefore, the interior space is formed between the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25, the vehicle body C-pillar 26 and the vehicle interior 10. The part of the interior space formed between the roof 23 and the vehicle interior 10 is defined as a top interior space 21, and the part of the interior space formed between the vehicle body B-pillar 25 and the vehicle body C-pillar 26 and the vehicle interior 10 is defined as a side interior space 22, then the top interior space 21 is distributed on the top of the vehicle interior 10, and the side interior space 22 is distributed on the side of the vehicle interior 10. In addition, since the vehicle body B-pillar 25 extends outward and downward, as shown in Figure 1 、 Figure 2 and Figure 4 As shown in the drawings, the vehicle has a vehicle frame 20 and a vehicle interior 10 fixed in the vehicle frame 20, the vehicle frame 20 generally includes a roof 23, a vehicle body A-pillar 24 extending forward from the left and right sides of the front end of the roof 23, a vehicle body B-pillar 25 extending outward and downward from the left and right sides of the roof 23, and a vehicle body C-pillar 26 extending rearward from the left and right sides of the rear end of the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25 and the vehicle body C-pillar 26 are vehicle body side panels, and an interior space of the vehicle is formed between the vehicle frame 20 and the vehicle interior 10. Therefore, the interior space is formed between the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25, the vehicle body C-pillar 26 and the vehicle interior 10. The part of the interior space formed between the roof 23 and the vehicle interior 10 is defined as a top interior space 21, and the part of the interior space formed between the vehicle body B-pillar 25 and the vehicle body C-pillar 26 and the vehicle interior 10 is defined as a side interior space 22, then the top interior space 21 is distributed on the top of the vehicle interior 10, and the side interior space 22 is distributed on the side of the vehicle interior 10. In addition, since the vehicle body B-pillar 25 extends outward and downward, as shown in Figure 6 and Figure 9 As shown in the drawings, the vehicle has a vehicle frame 20 and a vehicle interior 10 fixed in the vehicle frame 20, the vehicle frame 20 generally includes a roof 23, a vehicle body A-pillar 24 extending forward from the left and right sides of the front end of the roof 23, a vehicle body B-pillar 25 extending outward and downward from the left and right sides of the roof 23, and a vehicle body C-pillar 26 extending rearward from the left and right sides of the rear end of the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25 and the vehicle body C-pillar 26 are vehicle body side panels, and an interior space of the vehicle is formed between the vehicle frame 20 and the vehicle interior 10. Therefore, the interior space is formed between the roof 23, the vehicle body A-pillar 24, the vehicle body B-pillar 25, the vehicle body C-pillar 26 and the vehicle interior 10. The part of the interior space formed between the roof 23 and the vehicle interior 10 is defined as a top interior space 21, and the part of the interior space formed between the vehicle body B-pillar 25 and the vehicle body C-pillar 26 and the vehicle interior 10 is defined as a side interior space 22, then the top interior space 21 is distributed on the top of the vehicle interior 10, and the side interior space 22 is distributed on the side of the vehicle interior 10. In addition, since the vehicle body B-pillar 25 extends outward and downward, as shown in Figure 6 and Figure 9As shown, the bending guide rail mechanism 40 is arranged on the inner side of the vehicle body B pillar 25 and close to the vehicle body B pillar 25, i.e. the bending guide rail mechanism 40 is installed in the side interior space 22; the bending guide rail mechanism 40 comprises a rotating shaft 401 fixedly arranged and extending front and back, a curtain movable guide rail 402 rotatably mounted at the upper end of the rotating shaft 401, a mode switching driving source 403, and a switching transmission unit, the rotating shaft 401 is fixed to the roof 23 or the curtain frame 301, the second sliding groove is arranged in the curtain movable guide rail 402, the mode switching driving source 403 is connected with the curtain movable guide rail 402 through the switching transmission unit, and the curtain movable guide rail 402 is driven to rotate outwardly towards the vehicle body B pillar 25 or inwardly away from the vehicle body B pillar 25 around the rotating shaft 401. Of course, in other embodiments, the curtain folding and unfolding mechanism 30 and the bending guide rail mechanism 40 can be arranged at the vehicle body C pillar 26.

[0140] Further, the vehicle body interior 10 is provided with a first opening portion at the curtain folding and unfolding mechanism 30, the first opening portion is communicated with the top interior space 21, and the first opening portion allows the curtain body 302 to pass through. Meanwhile, the vehicle body interior 10 is provided with a second opening portion at the bending guide rail mechanism 40, the second opening portion is communicated with the side interior space 22, and the second opening portion allows the curtain movable guide rail 402 to pass through.

[0141] In the above vehicle projection curtain system, the folding and unfolding driving source 305 can drive the curtain body 302 to be upwardly stored in the top interior space 21 or to be downwardly extended and unfolded from the top interior space 21, and the mode switching driving source 403 can drive the curtain movable guide rail 402 to be stored in the side interior space 22 or to be inwardly extended from the side interior space 22.

[0142] Specifically, when the mode switching driving source 403 drives the curtain movable guide rail 402 to rotate outwardly through the switching transmission unit, as shown in Figures 6 to 8 , the curtain movable guide rail 402 is stored in the side interior space 22, the first sliding groove and the second sliding groove intersect, and the curtain body 302 is stored in the top interior space 21; at this time, due to the first sliding groove and the second sliding groove, the outer end of the curtain slider 303 is separated from the second sliding groove, so that the folding and unfolding driving source 305 cannot drive the curtain slider 303 to move downwardly along the first sliding groove and the second sliding groove, and the curtain body 302 always maintains the state of being stored in the top interior space 21, as shown in Figure 2 and Figure 3 , the curtain body 302 cannot be extended downwardly from the top interior space 21. In addition, when the curtain movable guide rail 402 and the curtain body 302 are both in the storage state, as shown in Figures 6 to 8As shown, the bending guide rail mechanism 40 is entirely accommodated between the B-pillar 25 and the interior trim 10 of the vehicle body, and does not protrude from the interior trim 10 to be exposed in the interior environment, so that the space occupied by the bending guide rail mechanism 40 is very small at this time, especially without additional occupation of the interior environment on the inner side of the interior trim 10 of the vehicle body; the curtain folding and unfolding mechanism 30 is entirely accommodated between the roof 23 and the interior trim 10 of the vehicle body, and does not protrude from the interior trim 10 to be exposed in the interior environment; finally, the bending guide rail mechanism 40 and the curtain folding and unfolding mechanism 30 do not additionally occupy the interior environment on the inner side of the interior trim 10 of the vehicle body when in the accommodated state, greatly improving the aesthetic degree of the interior environment in this state.

[0143] When the mode switching drive source 403 drives the curtain movable guide rail 402 to rotate inward through the switching transmission unit, the curtain movable guide rail 402 extends from the interior trim space 22 on the side, until the curtain movable guide rail 402 extends to a state where the second sliding groove on it is collinear with the first sliding groove, as shown in Figures 9 to 11 , so that the first sliding groove and the second sliding groove are aligned and communicated; at this time, the curtain slider 303 can slide with the first sliding groove and the second sliding groove; when the folding and unfolding drive source 305 drives the curtain slider 303 to move downward in the first sliding groove and the second sliding groove through the folding and unfolding transmission unit, the curtain slider 303 drives the curtain body 302 to move downward together, realizing the switching of the curtain body 302 from the Figure 2 and Figure 3 to the unfolded state in Figure 4 and Figure 5 ; when the folding and unfolding drive source 305 drives the curtain slider 303 to move upward in the first sliding groove and the second sliding groove through the folding and unfolding transmission unit, the curtain slider 303 drives the curtain body 302 to move upward together, realizing the switching of the curtain body 302 from the unfolded state in Figure 4 and Figure 5 to the accommodated state in Figure 2 and Figure 3 . In addition, as shown in Figure 4 and Figure 5 , when the curtain body 302 is in the unfolded state after extending downward from the top interior trim space 21, the projection device 60 is turned on, and the projection device 60 is aligned with the curtain body 302 to display the projection content to the second row of passengers for viewing.

[0144] In summary, the vehicle projection curtain system and the vehicle interior projection system provided by the application can achieve the following effects: when the curtain movable guide rail 402 is stored in the side interior space 22, the curtain body 302 is not unfolded; when the curtain movable guide rail 402 is extended from the side interior space 22 and rotated to a vertical state, the curtain slider 303 can move downward or upward along the first sliding groove and the second sliding groove, and the rectangular curtain body 302 can be unfolded and stored correspondingly. In this way, the rectangular curtain can be stored and unfolded, the overall space occupation is small when the curtain is stored, the overall structure does not protrude from the vehicle interior 10, the sense of strangeness in the vehicle interior environment is avoided, the appearance of the vehicle interior environment is greatly improved, and the use comfort of the application is improved.

[0145] Preferably, as shown in Figure 2 and Figure 4 , the projection device 60 is preferably stored in the top interior space 21 above the rear seats, and the vehicle interior 10 is provided with a third opening portion, which allows the lens at the front end of the projector to protrude. As shown in Figures 9 to 11 , the left and right sides of the lower end of the curtain body 302 are fixed with curtain sliders 303, based on which, the bending guide rail mechanism 40 has two and is symmetrically arranged on the left and right sides of the curtain body 302. The preferred embodiments of the curtain unfolding mechanism 30 and the bending guide rail mechanism 40 are described below.

[0146] Embodiment one of the curtain unfolding mechanism 30

[0147] As shown in Figure 12 , the curtain unfolding mechanism 30 further includes a curtain lower edge strip 306 fixed at the lower edge of the curtain body 302, the curtain lower edge strip 306 is a tubular structure, the curtain lower edge strip 306 covers the lower edge of the curtain body 302 along the width direction of the curtain body 302, and the length of the curtain lower edge strip 306 is not less than the width of the curtain body 302. The curtain slider 303 has two and is symmetrically fixed at the left and right ends of the curtain lower edge strip 306, the part of the curtain slider 303 close to the curtain lower edge strip 306 is inserted into and fixed in the pipe hole of the curtain lower edge strip 306, and the curtain slider 303 is fixedly connected with the curtain body 302 through the curtain lower edge strip 306. The curtain unfolding mechanism 30 further includes a curtain reel 321 extending leftward and rightward, the curtain reel 321 is rotatably supported in the curtain frame 301, the curtain body 302 is stored in the top interior space 21, the upper edge of the curtain body 302 is fixed on the curtain reel 321, and the curtain body 302 can be wound on the curtain reel 321.

[0148] As shown in Figure 12The retraction driving source 305 is fixedly arranged, is a motor, and is fixed to the roof 23 or the curtain frame 301. The ECU controls the forward rotation or reverse rotation of the output shaft of the retraction driving source 305. In this embodiment, the retraction transmission unit adopts a structure of multiple traction ropes, which is better suitable for the curtain movable guide rail 402 in the state change. The retraction transmission unit comprises a winding component 307, a first traction rope 308, a second traction rope 309, a third traction rope 310, and a fourth traction rope 311. The winding component 307 is fixedly installed and can rotate around the fixed axis extending upward and downward. The retraction driving source 305 is connected with the winding component 307 and drives the rotation of the winding component 307. As shown in Figure 15 and 16 The first traction rope 308 and the second traction rope 309 are wound on the winding component 307, and the winding directions of the first traction rope 308 and the second traction rope 309 are opposite. In this way, when the retraction driving source 305 drives the winding component 307 to rotate, the first traction rope 308 and the second traction rope 309 are in the winding state and the releasing state, respectively. The two ends of the third traction rope 310 are connected with the curtain sliders 303 on the left and right sides of the curtain body 302, respectively, and the two ends of the fourth traction rope 311 are also connected with the curtain sliders 303 on the left and right sides of the curtain body 302, respectively. In addition, the end of the first traction rope 308 is fixed with the third traction rope 310 through a first anchoring point 312, and the end of the second traction rope 309 is fixed with the fourth traction rope 311 through a second anchoring point 313. The first anchoring point 312 and the second anchoring point 313 are distributed on the same side of the retraction driving source 305 in the left-right direction. In this embodiment, the first anchoring point 312 and the second anchoring point 313 are both distributed on the left side of the retraction driving source 305. A part of the third traction rope 310 is bent and accommodated in the curtain movable guide rail 402 on the left side of the curtain body 302, and a part of the fourth traction rope 311 is bent and accommodated in the curtain movable guide rail 402 on the right side of the curtain body 302.

[0149] Figure 12 As shown in the curtain retraction mechanism 30, the curtain body 302 is in the storage state, the number of winding turns of the first traction rope 308 on the winding component 307 is small, and the number of winding turns of the second traction rope 309 on the winding component 307 is large. In addition, Figure 12 the curtain movable guide rail 402 is also in the storage state, the part of the third traction rope 310 and the part of the fourth traction rope 311 accommodated in the curtain movable guide rail 402 are in the outwardly deflected state. When Figure 12 the retraction driving source 305 drives the winding component 307 to rotate clockwise, the first traction rope 308 is in the winding state, and the second traction rope 309 is in the releasing state. The first traction rope 308 drives the first anchoring point 312 to move to the right, as shown in Figure 13As shown, the third traction rope 310, located to the left of the first anchor point 312, pulls down the left curtain slider 303. The left curtain slider 303 then pulls down the fourth traction rope 311, which in turn pulls down the right curtain slider 303. During this process, the second anchor point 313 moves to the left. The curtain sliders 303 on both sides cause the lower edge strip 306 of the curtain to move down together until the curtain body 302 is fully unfolded. Figure 14 As shown.

[0150] on the contrary, Figure 14 In the middle, the curtain body 302 is in the unfolded state, the first traction rope 308 has a larger number of turns around the winding component 307, and the second traction rope 309 has a smaller number of turns around the winding component 307. Figure 14 When the retraction drive source 305 drives the winding component 307 to rotate counterclockwise, the first traction rope 308 is in the released state, and the second traction rope 309 is in the winding state. The second traction rope 309 drives the second anchor point 313 to move to the right. The fourth traction rope 311, distributed to the left of the second anchor point 313, pulls the left curtain slider 303 upward, and then pulls the right curtain slider 303 upward through the third traction rope 310. During this process, the first anchor point 312 moves to the left. The curtain sliders 303 on both sides drive the lower edge strip 306 of the curtain to move upward together until the curtain body 302 is stored in the top interior space 21.

[0151] Preferably, such as Figure 15 As shown, the winding component 307 is preferably a cylindrical part extending vertically, and the cylindrical part is provided with a groove for the first traction rope 308 and the second traction rope 309 to be wound.

[0152] Furthermore, such as Figure 12As shown, the spread transmission unit further comprises a second fixed pulley 316 and a third fixed pulley 317 symmetrically installed in the top interior space 21, and a fourth fixed pulley 318 and a fifth fixed pulley 319 symmetrically installed at the lower end of each curtain movable guide rail 402, the third traction rope 310 distributed on the right side of the first anchoring point 312 is supported by the second fixed pulley 316, the third traction rope 310 distributed on the left side of the first anchoring point 312 is supported by the third fixed pulley 317 and the fifth fixed pulley 319, the fourth traction rope 311 distributed on the right side of the second anchoring point 313 is supported by the second fixed pulley 316 and the fourth fixed pulley 318, and the fourth traction rope 311 distributed on the left side of the second anchoring point 313 is supported by the third fixed pulley 317. The second fixed pulley 316 and the third fixed pulley 317 are rotatably installed on the roof 23 or the curtain frame 301, and the central axes of the second fixed pulley 316, the third fixed pulley 317, the fourth fixed pulley 318 and the fifth fixed pulley 319 all extend forward and backward. Specifically, the third traction rope 310 distributed on the right side of the first anchoring point 312 extends downward after passing through the second fixed pulley 316 and is connected to the right curtain slider 303; the third traction rope 310 distributed on the left side of the first anchoring point 312 extends downward after passing through the third fixed pulley 317, then extends upward after passing through the fifth fixed pulley 319 and is connected to the left curtain slider 303; the fourth traction rope 311 distributed on the right side of the second anchoring point 313 extends downward after passing through the second fixed pulley 316, then extends upward after passing through the fourth fixed pulley 318 and is connected to the right curtain slider 303; and the fourth traction rope 311 distributed on the left side of the second anchoring point 313 extends downward after passing through the third fixed pulley 317 and is connected to the left curtain slider 303. Through the arrangement of the fixed pulleys, the third traction rope 310 and the fourth traction rope 311 are more reliably supported, the traction loop formed thereby operates stably and reliably, and the stability of the upward or downward movement of the curtain slider 303 is improved. In addition, in other embodiments, the second fixed pulley 316, the third fixed pulley 317, the fourth fixed pulley 318 and the fifth fixed pulley 319 are all replaced by U-shaped fixed groove components, which only play a guiding and supporting role. In addition, the second fixed pulley 316 for supporting the third traction rope 310 and the fourth traction rope 311 can be one fixed pulley or two coaxial fixed pulleys, or high-low staggered fixed pulleys, or front-back staggered fixed pulleys; similarly, the third fixed pulley 317 for supporting the third traction rope 310 and the fourth traction rope 311 can be one fixed pulley or two coaxial fixed pulleys, or high-low staggered fixed pulleys, or front-back staggered fixed pulleys.

[0153] Further, as shown in FIG. 6, the curtain frame 301 is provided with a plurality of fixed pulleys 306, 307, 308 and 309, and the curtain frame 301 is provided with a plurality of fixed pulleys 306, 307, 308 and 309. Figures 12 to 14As shown, the retraction and expansion transmission unit further comprises two traction rope pre-tightening springs 320, both of which extend left and right along the width direction of the curtain body 302; one end of one of the traction rope pre-tightening springs 320 is fixed on the left curtain slider 303, and the other end of the traction rope pre-tightening spring 320 is fixed with the left end of the third traction rope 310, while the right end of the third traction rope 310 is directly fixed with the right curtain slider 303; one end of the other traction rope pre-tightening spring 320 is fixed on the right curtain slider 303, and the other end of the traction rope pre-tightening spring 320 is fixed with the right end of the fourth traction rope 311, while the left end of the fourth traction rope 311 is directly fixed with the left curtain slider 303. Due to the dimensional tolerance of the traction rope, thermal expansion and contraction of the air temperature, and deformation of the length after long-term use, etc., the length of the traction rope will change slightly; at the same time, when the curtain movable guide rail 402 switches between the retracted and expanded states, the length of the traction rope will also change. The setting of the traction rope pre-tightening spring 320 can absorb this part of the length change of the traction rope, and always pull the third traction rope 310 and the fourth traction rope 311 tight, so that the first traction rope 308, the second traction rope 309, the third traction rope 310 and the fourth traction rope 311 are always in a taut state, improving the accuracy of driving the curtain slider 303 to move up or down, and thus the accuracy of driving the curtain body 302 to retract and expand. In addition, the arrangement structure of the traction rope pre-tightening spring 320 in the embodiment makes the traction rope pre-tightening spring 320 rigidly pull the third traction rope 310 and the fourth traction rope 311, which is effective.

[0154] Further, as shown in Figure 12 The curtain reel 321 is a hollow shaft, and the inside of the curtain reel 321 is provided with a rewinding spring 322, which applies a rewinding force to the curtain reel 321 to drive the curtain reel 321 to rewind, as shown in Figure 17 The curtain reel 321 is a power shaft. In this way, during the winding process of the curtain body 302, under the action of the rewinding force always applied by the rewinding spring 322 to the curtain reel 321, the curtain body 302 is conveniently wound on the curtain reel 321 and retracted in a roll shape; during the expansion process of the curtain body 302, under the action of the rewinding force always applied by the rewinding spring 322 to the curtain reel 321, the flatness of the curtain body 302 in the vertical direction can also be ensured.

[0155] Further, as shown in Figure 18As shown, the curtain retraction mechanism 30 further comprises a spring 323 fixed at the left and right edges of the curtain body 302, the upper end of the spring 323 is fixed on the curtain roller 321, and the lower end of the spring 323 is fixed on the curtain slider 303. The spring 323 is deployed with the deployment of the curtain body 302 and is retracted with the retraction of the curtain body 302. When the spring 323 is deployed with the deployment of the curtain body 302, the spring 323 is accommodated in the curtain movable guide rail 402, and the outer edge of the spring 323 is clamped in the curtain movable guide rail 402. With the slightly smaller design of the width of the curtain body 302 and the elasticity of the material of the curtain body 302 itself, the curtain body 302 is taut in the horizontal direction, thereby ensuring the flatness of the curtain body 302 in the horizontal direction.

[0156] Second embodiment of the curtain retraction mechanism 30

[0157] Since the traction rope is only subjected to tension and not subjected to thrust, the retraction drive unit of the first embodiment of the curtain retraction mechanism 30 causes the curtain slider 303 connected to the traction rope subjected to tension to move first when driving the left and right curtain sliders 303 to move upward or downward, which leads to the undesirable phenomenon that the left and right curtain sliders 303 move upward or downward at different times, i.e., the height deviation of the left and right curtain sliders 303 due to the time difference in movement. At the same time, when the curtain movable guide rail 402 switches between the storage and deployment states, the traction rope pre-tightening spring 320 may not actually absorb the length change of the traction rope, which also leads to the height inconsistency of the left and right curtain sliders 303. The combination of various factors easily leads to the uneven movement of the curtain lower edge strip 306 at the lower end of the curtain body 302.

[0158] To avoid the above-mentioned undesirable phenomenon, the retraction drive unit of the second embodiment of the curtain retraction mechanism 30 adds a first fixed pulley 314 and a fifth traction rope 315 on the basis of the retraction drive unit of the first embodiment of the curtain retraction mechanism 30. As shown, Figure 19 In the second embodiment of the curtain retraction mechanism 30, the first fixed pulley 314 is distributed on the left side of the retraction drive source 305 along the width direction of the curtain body 302, and the first and second anchor points 312 and 313 are movably distributed between the retraction drive source 305 and the first fixed pulley 314; at the same time, the first fixed pulley 314 is higher than the first and second anchor points 312 and 313. The fifth traction rope 315 is wound on the first fixed pulley 314, and the two ends of the fifth traction rope 315 are fixed with the first and second anchor points 312 and 313, respectively.

[0159] When Figure 19When the winding member 307 is driven clockwise by the winding and unrolling driving source 305, the first anchor point 312 moves to the right, and the first anchor point 312 pulls the third traction rope 310 on the left side thereof under tension, directly pulling down the left curtain slider 303; the first anchor point 312 pulls the second anchor point 313 to the left at the same time through the fifth traction rope 315, and then the fourth traction rope 311 on the right side of the second anchor point 313 is pulled under tension, directly pulling down the right curtain slider 303, so that the two curtain sliders 303 move downward at the same time, eliminating the time difference and height deviation. Figure 20 When the winding member 307 is driven counterclockwise by the winding and unrolling driving source 305, the second anchor point 313 moves to the right, and the second anchor point 313 pulls the fourth traction rope 311 on the left side thereof under tension, directly pulling up the left curtain slider 303; the first anchor point 312 pulls the first anchor point 312 to the left at the same time through the fifth traction rope 315, and then the third traction rope 310 on the right side of the first anchor point 312 is pulled under tension, directly pulling up the right curtain slider 303, so that the two curtain sliders 303 move upward at the same time, eliminating the time difference and height deviation.

[0160] Embodiment three of the curtain winding and unrolling mechanism 30

[0161] Embodiment three of the curtain winding and unrolling mechanism 30 is different from embodiment one of the curtain winding and unrolling mechanism 30 only in that the connection structure between the winding and unrolling driving source 305 and the third traction rope 310 and the fourth traction rope 311 is different. Specifically, in embodiment three of the curtain winding and unrolling mechanism 30, the left and right sides of the curtain body 302 are also provided with curtain sliders 303 and bending guide rail mechanisms 40; the winding and unrolling transmission unit includes a fixedly installed and rotatable winding member 307, a fixed support pulley 324 (i.e. a fixed pulley) that can rotate around a fixed axis, third traction ropes 310 and fourth traction ropes 311 that are connected between the curtain sliders 303 on both sides of the curtain body 302, and a sixth traction rope 325 that passes through the fixed support pulley 324; the winding and unrolling driving source 305 is a motor connected with the winding member 307; both ends of the sixth traction rope 325 are wound on the winding member 307, and the part of the sixth traction rope 325 distributed on one side of the fixed support pulley 324 is fixed with the third traction rope 310 through the first anchor point 312, and the part of the sixth traction rope 325 distributed on the other side of the fixed support pulley 324 is fixed with the fourth traction rope 311 through the second anchor point 313. In the left and right directions, the first anchor point 312 and the second anchor point 313 are movably distributed between the fixed support pulley 324 and the winding and unrolling driving source 305.

[0162] Figure 21The curtain body 302 is in the storage state in the shown curtain retraction mechanism 30. When the retraction drive source 305 drives the winding member 307 to rotate clockwise, the sixth traction rope 325 wound on the lower section of the winding member 307 is in the winding state, the first anchor point 312 is driven to move rightward, and the left curtain slider 303 is directly pulled downward by the third traction rope 310; at the same time, the sixth traction rope 325 wound on the upper section of the winding member 307 is in the unwinding state, but the second anchor point 313 is driven to move leftward by the same sixth traction rope 325 and the fixed support pulley 324, and the right curtain slider 303 is directly pulled upward by the fourth traction rope 311. Since the rightward movement of the first anchor point 312 and the leftward movement of the second anchor point 313 are performed simultaneously, the left and right curtain sliders 303 are simultaneously moved downward, and the time difference and the height deviation are eliminated.

[0163] When the retraction drive source 305 drives the winding member 307 to rotate counterclockwise, the sixth traction rope 325 wound on the upper section of the winding member 307 is in the winding state, the second anchor point 313 is driven to move rightward, and the left curtain slider 303 is directly pulled upward by the fourth traction rope 311; at the same time, the sixth traction rope 325 wound on the lower section of the winding member 307 is in the unwinding state, but the first anchor point 312 is driven to move leftward by the same sixth traction rope 325 and the fixed support pulley 324, and the right curtain slider 303 is directly pulled upward by the third traction rope 310, so that the left and right curtain sliders 303 are simultaneously moved upward, and the time difference and the height deviation are eliminated. Figure 22 Further, as shown in FIG. 4, the curtain retraction mechanism 30 of the third embodiment is also provided with the second fixed pulley 316, the third fixed pulley 317, the fourth fixed pulley 318 and the fifth fixed pulley 319, and the support and guide structure of the third traction rope 310 and the fourth traction rope 311 is the same as that of the curtain retraction mechanism 30 of the first embodiment, which will not be repeated here.

[0164] Figure 21 The curtain retraction mechanism 30 of the fourth embodiment is different from the curtain retraction mechanism 30 of the first embodiment only in that the setting mode of the traction rope pre-tightening spring 320 is different. Specifically, as shown in FIG. 6, both of the traction rope pre-tightening springs 320 extend upward and downward, the left traction rope pre-tightening spring 320 is installed on the fifth fixed pulley 319 and acts on the third traction rope 310, and the right traction rope pre-tightening spring 320 is installed on the fourth fixed pulley 318 and acts on the fourth traction rope 311.

[0165] The curtain retraction mechanism 30 of the fourth embodiment is different from the curtain retraction mechanism 30 of the first embodiment only in that the setting mode of the traction rope pre-tightening spring 320 is different. Specifically, as shown in FIG. 6, both of the traction rope pre-tightening springs 320 extend upward and downward, the left traction rope pre-tightening spring 320 is installed on the fifth fixed pulley 319 and acts on the third traction rope 310, and the right traction rope pre-tightening spring 320 is installed on the fourth fixed pulley 318 and acts on the fourth traction rope 311.

[0166] The curtain retraction mechanism 30 of the fourth embodiment is different from the curtain retraction mechanism 30 of the first embodiment only in that the setting mode of the traction rope pre-tightening spring 320 is different. Specifically, as shown in FIG. 6, both of the traction rope pre-tightening springs 320 extend upward and downward, the left traction rope pre-tightening spring 320 is installed on the fifth fixed pulley 319 and acts on the third traction rope 310, and the right traction rope pre-tightening spring 320 is installed on the fourth fixed pulley 318 and acts on the fourth traction rope 311. Figure 23 The curtain retraction mechanism 30 of the fourth embodiment is different from the curtain retraction mechanism 30 of the first embodiment only in that the setting mode of the traction rope pre-tightening spring 320 is different. Specifically, as shown in FIG. 6, both of the traction rope pre-tightening springs 320 extend upward and downward, the left traction rope pre-tightening spring 320 is installed on the fifth fixed pulley 319 and acts on the third traction rope 310, and the right traction rope pre-tightening spring 320 is installed on the fourth fixed pulley 318 and acts on the fourth traction rope 311.​

[0167] Curtain retraction mechanism 30 embodiment five

[0168] Curtain retraction mechanism 30 embodiment five and curtain retraction mechanism 30 embodiment one are only different in the way of setting the traction rope pre-tightening spring 320. Specifically, in curtain retraction mechanism 30 embodiment five, as shown in the figure, both traction rope pre-tightening springs 320 extend up and down, the left traction rope pre-tightening spring 320 is installed in the vertical rope segment of the fourth traction rope 311 close to the curtain slider 303, and the right traction rope pre-tightening spring 320 is installed in the vertical rope segment of the third traction rope 310 close to the curtain slider 303, and the traction rope pre-tightening springs 320 are distributed on the upper side of the curtain slider 303. Figure 24

[0169] Bending guide rail mechanism 40 embodiment one

[0170] In this application, the first sliding groove in the curtain fixed guide rail 304 extends up and down. When the form switching drive source 403 drives the curtain movable guide rail 402 to rotate outwardly into the side interior space 22, as shown in the figure, the curtain movable guide rail 402 is in an inclined state, and the inclination direction of the curtain movable guide rail 402 is the same as the inclination direction of the vehicle body B pillar 25, so the left and right curtain movable guide rails 402 are in an eight-shaped form or a trapezoidal form. When the form switching drive source 403 drives the curtain movable guide rail 402 to rotate inwardly to a vertical state, the curtain movable guide rail 402 is in the same straight line with the curtain fixed guide rail 304, and the second sliding groove extends up and down, so the upper end of the second sliding groove is connected with the lower end of the first sliding groove, and the two are communicated, and the left and right curtain movable guide rails 402 are in a rectangular form. Therefore, by switching the two curtain movable guide rails 402 between the trapezoidal form and the rectangular form, the non-deployable and deployable of the curtain body 302 are realized. Figure 25

[0171] Further, as shown in the figure, the curtain fixed guide rail 304 is provided with a curtain fixed guide rail pre-tightening spring 330, and the curtain fixed guide rail pre-tightening spring 330 is arranged in the first sliding groove of the curtain fixed guide rail 304. Figure 25 ​​As shown, the form-changing drive source 403 is a motor, which is stored in the top interior space 21. The form-changing drive source 403 is fixed to the roof 23 or the curtain frame 301. The switching transmission unit includes a fixed guide rail 404, a drive gear 405, a drive rack 406, and a first transmission link 407. The drive gear 405 is housed in the top interior space 21 and fixed to the output shaft of the form switching drive source 403. The drive rack 406 is movably housed in the top interior space 21 and the side interior space 22, and the drive rack 406 meshes with the drive gear 405. The two ends of the first transmission link 407 are rotatably connected to the lower end of the drive rack 406 and the curtain movable guide rail 402, respectively. The fixed guide rail 404 is housed in the side interior space 22 and fixed to the B-pillar 25 of the vehicle body. The fixed guide rail 404 is distributed on the outside of the curtain movable guide rail 402. Both the curtain frame 301 and the fixed guide rail 404 have rack grooves that slide with the drive rack 406. In this switching transmission unit, a single motor drives the drive racks 406 on both the left and right sides simultaneously. In other words, the two sets of bending guide rail mechanisms 40 share the same form switching drive source 403, thereby reducing costs.

[0172] when Figure 25 When the form-switching drive source 403 rotates clockwise, it drives the two drive racks 406 to move in opposite directions. The ends of the drive racks 406 then move downwards along the rack grooves, driving the curtain movable guide rail 402 to rotate inwards around the rotation axis 401 via the first transmission link 407, until the curtain movable guide rail 402 rotates to a vertical position. Figure 26 As shown. By calculating the value of the rotation of the form-switching drive source 403, which causes the change in the length of the drive rack 406, and the final angle value of the curtain movement guide 402, the screen movement guide 402 is ensured to be vertical in the fully opened state. Conversely, when... Figure 26 When the form-changing drive source 403 rotates counterclockwise, it drives the two drive racks 406 to move towards each other. The ends of the drive racks 406 move upward along the rack grooves, driving the curtain movable guide rail 402 to rotate outward around the rotation axis 401 through the first transmission link 407, until it is completely stored in the side interior space 22. Furthermore, the self-locking of the form-changing drive source 403 achieves self-locking of the entire mechanism of the switching transmission unit.

[0173] In other situations, the drive rack 406 can be made of wire rope, as long as it can mesh with the drive gear 405.

[0174] Example 2 of bending guide rail mechanism 40

[0175] Embodiment 2 of the bending guide mechanism 40 adds a passive connecting rod 408 to Embodiment 1 of the bending guide mechanism 40. Specifically, as follows... Figure 27As shown, the switching transmission unit of the second embodiment of the bending guide rail mechanism 40 further comprises a passive link 408, which is distributed on the lower side of the first transmission link 407, one end of the passive link 408 is in sliding fit with the rack slot in the fixed guide rail 404, and the other end of the passive link 408 is rotationally connected with the curtain movable guide rail 402, and the passive link 408 and the first transmission link 407 form an acute angle.

[0176] As shown in Figure 27 and Figure 28 , the passive link 408 does not play a role in transmitting power, but the passive link 408 will expand with the inward expansion of the first transmission link 407, or contract with the outward contraction of the first transmission link 407, and basically perform the same action. When the mode switching drive source 403 drives the curtain movable guide rail 402 to rotate inward to the vertical state through the drive gear 405, the drive rack 406 and the first transmission link 407, the passive link 408 and the fixed guide rail 404 form an included angle of 80°-90°. The passive link 408, the first transmission link 407, the fixed guide rail 404 and the curtain movable guide rail 402 form two triangles, which reliably increase the self-locking stability of the structure, especially in the front-rear direction of the vehicle.

[0177] The third embodiment of the bending guide rail mechanism 40

[0178] The third embodiment of the bending guide rail mechanism 40 is different from the second embodiment of the bending guide rail mechanism 40 only in that, as shown in Figure 29 and Figure 30 , the lower end of the drive rack 406 is fixed with a stop portion 409, which is a block-shaped part or a hook-shaped part; the outer end of the passive link 408 is fixed with a sliding block 410 distributed in the fixed guide rail 404. When the mode switching drive source 403 drives the curtain movable guide rail 402 to rotate inward to the vertical state through the drive gear 405, the drive rack 406 and the first transmission link 407, the sliding block 410 at the outer end of the passive link 408 just abuts against the stop portion 409 at the lower end of the drive rack 406, and the passive link 408 and the fixed guide rail 404 form an included angle of 80°-90°. In this way, when the curtain movable guide rail 402 is in the vertical state, the abutment of the sliding block 410 and the stop portion 409 better realizes the self-locking of the bending guide rail mechanism 40, and avoids shaking when the bending guide rail mechanism 40 is stressed in the front-rear direction or is subjected to acceleration in various directions when the vehicle is driven. At the same time, when the curtain movable guide rail 402 in the vertical state starts to rotate outward and is stored, the outer end of the passive link 408 is hooked upward by the abutment of the sliding block 410 and the stop portion 409, which destroys the 80°-90° included angle between the passive link 408 and the fixed guide rail 404, and releases the self-locking state.

[0179] Bending guide rail mechanism 40 embodiment four

[0180] Bending guide rail mechanism 40 embodiment four and bending guide rail mechanism 40 embodiment one are only different in the structure of the switching transmission unit. Specifically, in bending guide rail mechanism 40 embodiment four, as shown in Figure 31 , the switching transmission unit includes a fixed nut 411 accommodated in the side interior space 22 and fixed to the vehicle body B pillar 25, a transmission screw 412 threaded in the fixed nut 411, and a second transmission connecting rod 413, the mode switching driving source 403 is connected with the transmission screw 412, and the two ends of the second transmission connecting rod 413 are respectively rotatably connected with the transmission screw 412 and the curtain movable guide rail 402. Alternatively, the transmission screw 412 is replaced by a transmission screw, at this time, the mode switching driving source 403 is connected with the transmission screw, and the two ends of the second transmission connecting rod 413 are respectively rotatably connected with the transmission screw and the curtain movable guide rail 402. In bending guide rail mechanism 40 embodiment four, two groups of bending guide rail mechanisms 40 each use one mode switching driving source 403. When the mode switching driving source 403 in each bending guide rail mechanism 40 drives the transmission screw 412 or the transmission screw to rotate, the transmission screw 412 or the transmission screw also moves along the length direction of itself at the same time, and then drives the curtain movable guide rail 402 to rotate outward or inward through the second transmission connecting rod 413, so that the left and right curtain movable guide rails 402 are switched between the trapezoidal shape and the rectangular shape.

[0181] Further, when the curtain movable guide rail 402 is rotated inward to the position and is in the vertical state, a triangular gap is formed between the curtain movable guide rail 402 and the vehicle interior 10 outside the vehicle body B pillar 25. In order to cover the triangular gap in this state, as shown in Figure 6 and Figure 9 , the vehicle projection curtain system further includes two sets of trim plate mechanisms 50, which are distributed on the left and right sides of the curtain body 302; each set of trim plate mechanism 50 includes a decorative plate that can rotate around a fixed axis, and a trim plate transmission unit, the decorative plate is connected with the curtain movable guide rail 402 through the trim plate transmission unit. When the curtain movable guide rail 402 is accommodated in the side interior space 22, as shown in Figures 6 to 8 , the decorative plate is also accommodated in the side interior space 22. When the curtain movable guide rail 402 is stretched out from the side interior space 22 and is in the vertical state, as shown in Figures 9 to 11 , at least a part of the decorative plate is stretched out from the side interior space 22 and covers the gap formed between the curtain movable guide rail 402 and the vehicle interior 10 outside the vehicle body B pillar 25, improving the beauty when the curtain body 302 is unfolded.

[0182] The preferred embodiment of the trim plate mechanism 50 is given below.

[0183] Trim plate mechanism 50 embodiment one

[0184] In Embodiment 1 of the decorative panel mechanism 50, as follows: Figure 32 As shown, the decorative panel includes several movable panels. Two adjacent movable panels are designated as an inner movable panel 501 and an outer movable panel 502, respectively. The upper ends of both the inner and outer movable panels 501 and 502 are rotatably connected to a rotating shaft 401. The number of movable panels depends on the size of the gap formed between the curtain movable guide rail 402 and the vehicle interior trim 10 after the curtain movable guide rail extends; typically, it is 2-5 panels. In this embodiment, the decorative panel consists of two movable panels. The panel transmission unit includes a compression spring 503, a transmission recess on the outer movable panel 502, and a transmission protrusion 504 on the inner movable panel 501. The inner movable panel 501 is fixed to the curtain movable guide rail 402. The outer end of the compression spring 503 is fixedly installed, and the inner end of the compression spring 503 is connected to the outer movable panel 502. The transmission protrusion 504 can engage with the transmission recess. The spring force applied by the compression spring 503 to the outer movable trim panel 502 causes the outer movable trim panel 502 to press tightly against the B-pillar 25 of the vehicle body, thus counteracting the tension at the traction point formed by the transmission protrusion 504. In other embodiments, when there are three or more movable trim panels, the innermost movable trim panel 501 is fixed to the curtain movable guide rail 402; the connection structure between adjacent movable trim panels is the same.

[0185] When the form-changing drive source 403 drives the curtain's movable guide rail 402 in the retracted state to rotate inward, as Figure 32 and Figure 33 As shown, the inner movable decorative panel 501 rotates inward together with the curtain movable guide rail 402; simultaneously, the transmission protrusion 504 at the lower end of the inner movable decorative panel 501 moves towards the transmission recess at the lower end of the outer movable decorative panel 502. When the transmission protrusion 504 is not engaged in the transmission recess, the outer movable decorative panel 502 remains stationary; then, as the curtain movable guide rail 402 and the inner movable decorative panel 501 continue to rotate inward, the transmission protrusion 504 engages in the transmission recess; subsequently, as the curtain movable guide rail 402 and the inner movable decorative panel 501 continue to rotate inward, as... Figure 33 and Figure 34 As shown, overcoming the spring force of the compression spring 503, the inner movable trim panel 501 engages with the transmission recess via the transmission protrusion 504, causing the outer movable trim panel 502 to rotate inward together. The triangular gap is covered by the inner movable trim panel 501 and the outer movable trim panel 502, thus beautifying the vehicle interior.

[0186] The decorative plate is arranged as the rotatable inner movable decorative plate 501 and the outer movable decorative plate 502, so that the occupied space of the decorative plate in the storage state is reduced, the storage of the decorative plate in the not very large side interior space 22 is facilitated, and the vehicle interior in the storage state is beautified. In other embodiments, the inner movable decorative plate 501, the outer movable decorative plate 502 and the curtain movable guide rail 402 can rotate around different fixed axes, but the fixed axes are arranged in the similar region. The inner movable decorative plate 501 and the outer movable decorative plate 502 are preferably assembled by a plurality of scattered parts, so as to facilitate the mold stripping, and the requirements of different decorative plate materials can also be met.

[0187] Preferably, as shown in Figure 32 The decorative plate mechanism 50 further comprises a fixed decorative plate stopper 505 fixed to the vehicle body B column 25 or the fixed guide rail 404. When the decorative plate is also stored in the side interior space 22, the decorative plate stopper 505 is arranged between the vehicle body B column 25 and the outer movable decorative plate 502, or the decorative plate stopper 505 is arranged between the fixed guide rail 404 and the outer movable decorative plate 502, so as to avoid the abnormal sound caused by the close contact of the outer movable decorative plate 502 with the vehicle body B column 25 or the fixed guide rail 404.

[0188] Based on the effects of the compression spring 503 and the decorative plate stopper 505, the compression spring 503 and the decorative plate stopper 505 exert two opposite forces on the outer movable decorative plate 502 when the decorative plate mechanism 50 is in the storage state, the compression spring 503 and the decorative plate stopper 505 exert two opposite forces on the outer movable decorative plate 502 when the decorative plate mechanism 50 is in the half expansion state, and the compression spring 503 and the traction point exert two opposite forces on the outer movable decorative plate 502 when the decorative plate mechanism 50 is in the expansion state.

[0189] Embodiment two of the decorative plate mechanism 50

[0190] In the embodiment two of the decorative plate mechanism 50, as shown in Figure 35As shown, the decorative plate is composed of two movable decorative plates, i.e., an inner movable decorative plate 501 and an outer movable decorative plate 502, and the upper ends of the inner movable decorative plate 501 and the outer movable decorative plate 502 are rotationally connected to the rotating shaft 401. A decorative plate transmission unit, a decorative plate transmission link 506, a transmission pin 507 fixed on the decorative plate transmission link 506, and a transmission sliding groove 508 formed in the outer movable decorative plate 502 are provided. The inner movable decorative plate 501 is fixed to the curtain movable guide rail 402. One end of the decorative plate transmission link 506 is movably connected to the driving rack 406 in the switching transmission unit, and the other end of the decorative plate transmission link 506 is rotationally connected to the curtain movable guide rail 402. The transmission pin 507 is movably accommodated in the transmission sliding groove 508. Preferably, the decorative plate transmission link 506 is the first transmission link 407 described above. In other embodiments, when there are three or more movable decorative plates, the innermost inner movable decorative plate 501 is fixed to the curtain movable guide rail 402, and the connection structures between adjacent two movable decorative plates are the same.

[0191] When the morphological switching driving source 403 drives the curtain movable guide rail 402 in the storage state to rotate inwardly, as shown in FIG. 4B, Figures 35 to 37 the inner movable decorative plate 501 rotates inwardly together with the curtain movable guide rail 402. At the same time, the transmission pin 507 on the decorative plate transmission link 506 moves downwardly. When the transmission pin 507 does not abut against the lower end of the transmission sliding groove 508, the outer movable decorative plate 502 remains stationary. Then, as the curtain movable guide rail 402 and the inner movable decorative plate 501 continue to rotate inwardly, the transmission pin 507 abuts against the lower end of the transmission sliding groove 508. Then, as the curtain movable guide rail 402 and the inner movable decorative plate 501 continue to rotate inwardly, the inner movable decorative plate 501 drives the outer movable decorative plate 502 to rotate inwardly through the abutment of the transmission pin 507 and the transmission sliding groove 508. The triangular gap is shielded by the inner movable decorative plate 501 and the outer movable decorative plate 502, and the vehicle interior is beautified.

[0192] Embodiment three of the decorative plate mechanism 50

[0193] In the third embodiment of the decorative plate mechanism 50, the decorative plate is an integral plate, the upper end of the decorative plate is rotationally connected to the rotating shaft 401, and the decorative plate is fixedly connected to the curtain movable guide rail 402, and is directly driven to rotate by the curtain movable guide rail 402. This structure is suitable for a larger side interior space 22. One rotatable decorative plate can shield the triangular gap, and the compression spring 503, the transmission recess, and the transmission protrusion 504 related transmission structure in the first embodiment of the decorative plate mechanism 50 are omitted, or the transmission pin 507 and the transmission sliding groove 508 related transmission structure in the second embodiment of the decorative plate mechanism 50 are omitted, thereby simplifying the structure and reducing the cost.

[0194] In summary, the working principle of the vehicle interior projection system with the above structure is as follows.

[0195] I. The curtain folding mechanism 30, the bending guide rail mechanism 40 and the decorative plate mechanism 50 are all in the storage state.

[0196] II. The passenger opens the projection system:

[0197] The mode switching drive source 403 in the bending guide rail mechanism 40 is actuated to rotate the left and right curtain movable guide rails 402 inward to the vertical state;

[0198] The inner movable decorative plate 501 and the outer movable decorative plate 502 in the decorative plate mechanism 50 are rotated inward to be unfolded due to the inward rotation of the curtain movable guide rails 402;

[0199] The folding drive source 305 in the curtain folding mechanism 30 is actuated to move the lower end of the curtain body 302 downward to the curtain body 302 unfolding.

[0200] III. The projector light is irradiated on the curtain body 302, and the passenger watches.

[0201] IV. The passenger closes the vehicle interior projection system:

[0202] The projector light is turned off;

[0203] The folding drive source 305 in the curtain folding mechanism 30 is reversely actuated to move the lower end of the curtain body 302 upward to the curtain body 302 winding;

[0204] The mode switching drive source 403 in the bending guide rail mechanism 40 is reversely actuated to rotate the left and right curtain movable guide rails 402 outward to the storage state;

[0205] The inner movable decorative plate 501 and the outer movable decorative plate 502 in the decorative plate mechanism 50 are rotated outward to be stored due to the outward rotation of the curtain movable guide rails 402;

[0206] At this point, the curtain folding mechanism 30, the bending guide rail mechanism 40 and the decorative plate mechanism 50 are all in the storage state again.

[0207] In summary, the present application effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0208] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A vehicle projection screen system, installed in the interior space of a vehicle, the interior space comprising a top interior space (21) distributed on the top of the vehicle interior (10) and side interior spaces (22) distributed on the sides of the vehicle interior (10), characterized in that: The vehicle projection screen system includes a screen retraction mechanism (30) installed in the top interior space (21) and a bending guide rail mechanism (40) installed in the side interior space (22); The curtain retraction mechanism (30) includes a fixed curtain frame (301), a curtain body (302) retractably mounted on the curtain frame (301), a curtain slider (303) fixed to the side of the curtain body (302) along the width direction of the curtain body (302), a curtain fixing guide rail (304) distributed on the outside of the curtain body (302) along the width direction of the curtain body (302), a retraction drive source (305), and a retraction transmission unit. The curtain fixing guide rail (304) is fixed to the curtain frame (301). The curtain slide is provided with a first groove. The retraction drive source (305) is connected to the curtain slider (303) through the retraction transmission unit. The bending guide rail mechanism (40) includes a fixed rotating shaft (401), a curtain movable guide rail (402) rotatably mounted on the rotating shaft (401), a form switching drive source (403), and a switching transmission unit. The curtain movable guide rail (402) is provided with a second groove. The form switching drive source (403) is connected to the curtain movable guide rail (402) through the switching transmission unit. The interior trim (10) of the vehicle body is provided with a first opening that allows the curtain body (302) to pass through and a second opening that allows the curtain movement guide rail (402) to pass through; When the form switching drive source (403) drives the curtain movable guide rail (402) to rotate outward through the switching transmission unit, the curtain movable guide rail (402) is stored in the side interior space (22), the first slide rail and the second slide rail intersect, and the curtain body (302) is stored in the top interior space (21). When the form-changing drive source (403) drives the curtain movable guide rail (402) to rotate inward through the switching transmission unit, the curtain movable guide rail (402) extends out from the side interior space (22), the first slide rail and the second slide rail are aligned and connected, the curtain slider (303) can slide and cooperate with the first slide rail and the second slide rail, and the retraction drive source (305) can drive the curtain slider (303) to move in the first slide rail and the second slide rail through the retraction transmission unit.

2. The vehicle projection screen system according to claim 1, characterized in that: The first slide extends vertically; the bending guide rail mechanism (40) is installed in the side interior space (22) formed by the vehicle interior (10) and the vehicle B-pillar (25); When the form switching drive source (403) drives the curtain movement guide (402) to rotate outward and be stored in the side interior space (22), the curtain movement guide (402) is in an inclined state, and the inclination direction of the curtain movement guide (402) is the same as the inclination direction of the B-pillar (25) of the vehicle body. When the mode switching drive source (403) drives the curtain moving guide rail (402) to rotate inward to a vertical state, the second slide rail extends vertically, and the upper end of the second slide rail connects with the lower end of the first slide rail.

3. The vehicle projection screen system according to claim 1, characterized in that: Both sides of the curtain body (302) are provided with curtain sliders (303) and bending guide rail mechanisms (40); the retraction drive source (305) is fixedly installed; the retraction transmission unit includes a fixedly installed and rotatable winding component (307), a first traction rope (308) and a second traction rope (309) both wound on the winding component (307), and a third traction rope (310) and a fourth traction rope (311) both connected between the curtain sliders (303) on both sides of the curtain body (302). The retraction drive source (305) and the winding component (307) are connected to the curtain sliders (303) on both sides of the curtain body (302). The first traction rope (308) is connected to the third traction rope (310) through the first anchor point (312), and the second traction rope (309) is connected to the fourth traction rope (311) through the second anchor point (313). A portion of the third traction rope (310) is bent and housed in the curtain movable guide rail (402) on one side of the curtain body (302), and a portion of the fourth traction rope (311) is bent and housed in the curtain movable guide rail (402) on the other side of the curtain body (302). When the retraction drive source (305) drives the winding component (307) to rotate, the first traction rope (308) and the second traction rope (309) are in the winding state and the unwinding state, respectively, and the first anchor point (312) and the second anchor point (313) move in opposite directions.

4. The vehicle projection screen system according to claim 3, characterized in that: The retraction and extension transmission unit also includes a first fixed pulley (314) and a fifth traction rope (315) wound around the first fixed pulley (314), the two ends of the fifth traction rope (315) being fixed to the first anchor point (312) and the second anchor point (313) respectively; Along the width direction of the curtain body (302), the first anchor point (312) and the second anchor point (313) are movably distributed between the retraction drive source (305) and the first fixed pulley (314).

5. The vehicle projection screen system according to claim 1, characterized in that: Both sides of the curtain body (302) are provided with curtain sliders (303) and bending guide rail mechanisms (40); the retraction drive source (305) is fixedly installed; the retraction transmission unit includes a fixedly installed and rotatable winding component (307), a fixed support pulley (324) that can rotate around a fixed axis, a third traction rope (310) and a fourth traction rope (311) connected between the curtain sliders (303) on both sides of the curtain body (302), and a sixth traction rope that passes over the fixed support pulley (324). Rope (325), the retraction drive source (305) is connected to the winding component (307), both ends of the sixth traction rope (325) are wound on the winding component (307), the sixth traction rope (325) distributed on one side of the fixed support pulley (324) is fixed to the third traction rope (310) through the first anchor point (312), and the sixth traction rope (325) distributed on the other side of the fixed support pulley (324) is fixed to the fourth traction rope (311) through the second anchor point (313); When the winding drive source (305) drives the winding component (307) to rotate, the two ends of the sixth traction rope (325) on the winding component (307) are in the winding state and the unwinding state respectively, and the first anchor point (312) and the second anchor point (313) move in opposite directions.

6. The vehicle projection screen system according to any one of claims 3-5, characterized in that: The retraction and extension transmission unit also includes a second fixed pulley (316) and a third fixed pulley (317) symmetrically installed in the top interior space (21), and a fourth fixed pulley (318) and a fifth fixed pulley (319) symmetrically installed in each curtain movement guide rail (402). The third traction rope (310) distributed on one side of the first anchor point (312) is supported by the second fixed pulley (316), the third traction rope (310) distributed on the other side of the first anchor point (312) is supported by the third fixed pulley (317) and the fifth fixed pulley (319), the fourth traction rope (311) distributed on one side of the second anchor point (313) is supported by the second fixed pulley (316) and the fourth fixed pulley (318), and the fourth traction rope (311) distributed on the other side of the second anchor point (313) is supported by the third fixed pulley (317).

7. The vehicle projection screen system according to claim 6, characterized in that: The retraction and extension transmission unit also includes two traction rope pretension springs (320) extending vertically. The two traction rope pretension springs (320) are respectively installed on the fourth fixed pulley (318) and the fifth fixed pulley (319). The two traction rope pretension springs (320) act on the third traction rope (310) and the fourth traction rope (311) respectively.

8. The vehicle projection screen system according to any one of claims 3-5, characterized in that: The retraction and extension transmission unit also includes a traction rope pretension spring (320) extending along the width direction of the curtain body (302). There are two traction rope pretension springs (320), which are respectively fixed on each curtain slider (303). The third traction rope (310) and the fourth traction rope (311) are both such that one end of the rope is fixed to one curtain slider (303), and the other end of the rope is fixed to the traction rope pretension spring (320) on another curtain slider (303).

9. The vehicle projection screen system according to any one of claims 3-5, characterized in that: The retraction and extension transmission unit also includes two traction rope pretension springs (320) extending vertically. The traction rope pretension springs (320) are installed in the vertical rope sections of the third traction rope (310) and the fourth traction rope (311) near the curtain slider (303), respectively.

10. The vehicle projection screen system according to claim 1, characterized in that: The switching transmission unit includes a fixed guide rail (404) housed in the side interior space (22) and fixed to the frame (20), a fixed and rotatable drive gear (405), a drive rack (406) meshing with the drive gear (405), and a first transmission link (407). The form switching drive source (403) is connected to the drive gear (405). The two ends of the first transmission link (407) are rotatably connected to the drive rack (406) and the curtain movable guide rail (402), respectively. The curtain frame (301) and the fixed guide rail (404) are both provided with rack grooves that slide with the drive rack (406).

11. The vehicle projection screen system according to claim 10, characterized in that: The switching transmission unit also includes a passive link (408), one end of which is slidably engaged with the rack groove in the fixed guide rail (404), and the other end is rotatably connected to the curtain movable guide rail (402). The passive link (408) is distributed on the lower side of the first transmission link (407) and forms an acute angle with the first transmission link (407).

12. The vehicle projection screen system according to claim 1, characterized in that: The switching transmission unit includes a fixing nut (411) housed in the side interior space (22) and fixed to the frame (20), a transmission screw (412) or transmission lead screw threaded in the fixing nut (411), and a second transmission link (413). The form switching drive source (403) is connected to the transmission screw (412) or transmission lead screw. The two ends of the second transmission link (413) are rotatably connected to the transmission screw (412) or transmission lead screw and the curtain movable guide rail (402), respectively.

13. The vehicle projection screen system according to claim 1, characterized in that: It also includes a decorative panel mechanism (50), which includes a decorative panel that can rotate about a fixed axis and a decorative panel transmission unit, wherein the decorative panel is connected to the curtain movable guide rail (402) through the decorative panel transmission unit; When the curtain movement guide rail (402) is stored in the side interior space (22), the decorative panel is also stored in the side interior space (22); When the curtain movement guide (402) extends out of the side interior space (22) and is in a vertical position, at least a portion of the decorative panel extends out of the side interior space (22) and covers the gap formed between the curtain movement guide (402) and the vehicle interior (10).

14. The vehicle projection screen system according to claim 13, characterized in that: The decorative panel includes several movable decorative panels that are rotatably connected to the rotating shaft (401). Two adjacent movable decorative panels are an inner movable decorative panel (501) and an outer movable decorative panel (502). The decorative panel transmission unit includes a compression spring (503), a transmission recess on the outer movable decorative panel (502), and a transmission protrusion (504) on the inner movable decorative panel (501). The innermost movable decorative panel (501) among the several movable decorative panels is fixed to the curtain movable guide rail (402). One end of the compression spring (503) is fixedly set, and the other end is connected to the outer movable decorative panel (502). The transmission protrusion (504) can engage with the transmission recess.

15. The vehicle projection screen system according to claim 14, characterized in that: The trim panel mechanism (50) also includes a fixed trim panel stop block (505); when the trim panel is also housed in the side interior space (22), the trim panel stop block (505) abuts between the frame (20) and the outer movable trim panel (502).

16. The vehicle projection screen system according to claim 13, characterized in that: The decorative panel includes several movable decorative panels rotatably connected to a rotating shaft (401). Two adjacent movable decorative panels are an inner movable decorative panel (501) and an outer movable decorative panel (502). The decorative panel transmission unit includes a decorative panel transmission link (506), a transmission pin (507) fixed on the decorative panel transmission link (506), and a transmission groove (508) opened in the outer movable decorative panel (502). The innermost movable decorative panel (501) among the several movable decorative panels is fixed to the curtain movable guide rail (402). One end of the decorative panel transmission link (506) is movable and connected to the transmission component in the switching transmission unit. The other end of the decorative panel transmission link (506) is rotatably connected to the curtain movable guide rail (402). The transmission pin (507) is movably accommodated in the transmission groove (508).

17. The vehicle projection screen system according to claim 1, characterized in that: The curtain retraction mechanism (30) also includes a lower curtain strip (306) fixed at the lower edge of the curtain body (302). The lower curtain strip (306) covers the lower edge of the curtain body (302) along the width direction of the curtain body (302). There are two curtain sliders (303) and they are symmetrically fixed at both ends of the lower curtain strip (306).

18. A vehicle interior projection system, comprising a projection device (60), characterized in that: It also includes the vehicle projection screen system according to any one of claims 1-17; when the screen body (302) is unfolded downward from the top interior space (21), the projection device (60) is aligned with the screen body (302).

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