Rear seat back shade

Abstract

The present invention relates to a back seat curtain for being installed between a back seat and a coat rack behind the back seat of a motor vehicle, which back seat curtain comprises a fixed frame, a folding curtain support mechanism arranged on the fixed frame and a curtain connected between the fixed frame and the folding curtain support mechanism, wherein the folding curtain support mechanism pushes a movable edge rod of the curtain against the back seat by two folding support assemblies acted by elastic members, so as to provide a shielding effect between the back seat and the coat rack, and when the angle of the back seat is changed, the two folding support assemblies are adaptively folded by the movable edge rod, and the curtain maintains the shielding effect between the back seat and the coat rack.

Description

TECHNICAL FIELD

[0001] The present invention relates to a curtain, in particular, a curtain for providing a shielding function between a rear seat and a coat hanger behind the rear seat in a motor vehicle. BACKGROUND

[0002] In a motor vehicle, in order to achieve the purpose of sunshade or object shielding, there are currently related products such as sunshade curtains and object shielding curtains. The sunshade curtain can be installed at the window of the motor vehicle for sunshade purposes, and the object shielding curtain can be installed at the rear object space of the motor vehicle to provide object shielding purposes.

[0003] In some motor vehicles, in order to meet the needs of users hanging clothes and hats, a coat hanger is installed in the interior space behind the rear seat of the motor vehicle to provide users with the function of hanging clothes and hats on the coat hanger, avoiding the problem of wrinkles caused by randomly placing clothes and hats in the interior space or on the seat.

[0004] In the aforementioned motor vehicle, although the coat hanger installed in the interior space behind the rear seat can provide the function of hanging clothes and hats for users. However, the rear seat needs to adjust the inclination angle of the seat back in front of and behind the seat back to meet the preferred sitting posture of the occupant, so the coat hanger installed behind the rear seat must maintain a predetermined distance from the rear seat. The space between the seat back and the coat hanger needs to be properly shielded by a curtain.

[0005] The existing curtain structure of sunshade curtains or object shielding curtains has shielding function, but the manual or electric sunshade curtains or object shielding curtains must be operated by the driver or the user when the curtain is unfolded or retracted. Therefore, if the existing curtain structure is directly applied to the space between the seat back and the coat hanger, it is difficult to automatically respond to the angle adjustment of the seat back and maintain its proper shielding function. Therefore, it is necessary to rethink and create a more practical curtain product. SUMMARY

[0006] The technical problem to be solved by the present invention is to provide a rear seat back curtain to solve the problem of lack of practical shielding objects in the space between the rear seat and the coat hanger behind the rear seat in the existing motor vehicle.

[0007] The technical solution proposed by the present invention is to provide a rear seat back curtain for being installed behind a rear seat back, which comprises:

[0008] a fixed frame;

[0009] a curtain, opposite sides of which are a connecting edge and a movable edge, the connecting edge being connected to the fixed frame; and

[0010] A folding curtain support mechanism is installed on the fixed frame and connected to the movable edge of the curtain, which comprises:

[0011] A movable edge rod is located outside the fixed frame and connected to the movable edge of the curtain.

[0012] Two folding support assemblies are oppositely arranged on both sides of the fixed frame and are collectively connected to the movable edge rod.

[0013] One or two elastic components are installed in the fixed frame and can provide elastic force to the two folding support assemblies, so that the two folding support assemblies can be stretched by the elastic force and push the movable edge rod away from the fixed frame, and the angle change of the backrest of the rear seat can drive the movable edge rod, so that the two folding support assemblies adaptively fold the curtain.

[0014] In the rear seat back curtain as described above, the fixed frame has a horizontally arranged frame rod, the frame rod has a sliding groove, the sliding groove forms a slot in the frame rod, and a sliding rail is arranged in the sliding groove; the two folding support assemblies are oppositely arranged on the left and right sides of the frame rod, each of the folding support assemblies comprises a sliding arm and an auxiliary support arm, the two ends of the sliding arm are a group connection end and a sliding end, the sliding end of the sliding arm extends into the frame rod through the slot of the frame rod, and a sliding piece is pivoted to the sliding end of the sliding arm, the sliding piece is arranged in the sliding rail in the frame rod, the elastic component is located in the frame rod and abuts against the sliding piece, the two ends of the auxiliary support arm are a pivot connection end and a connection end, the pivot connection end of the auxiliary support arm is pivoted to the fixed frame, and the connection end of the auxiliary support arm is pivoted to the middle segment of the sliding arm.

[0015] In the rear seat back curtain as described above, the fixed frame has two frame rods, the two frame rods are vertically arranged and oppositely arranged, each of the two frame rods has a sliding groove, the sliding groove forms a slot in the frame rod, and a sliding rail is arranged in the sliding groove; the two folding support assemblies are arranged in the two frame rods and oppositely arranged, each of the folding support assemblies comprises a sliding arm and an auxiliary support arm, the two ends of the sliding arm are a group connection end and a sliding end, the sliding end of the sliding arm extends into the frame rod through the slot of the frame rod, and a sliding piece is pivoted to the sliding end of the sliding arm, the sliding piece is arranged in the sliding rail in the frame rod, each of the two frame rods has an elastic component, the elastic component abuts against the sliding piece, the two ends of the auxiliary support arm are a pivot connection end and a connection end, the pivot connection end of the auxiliary support arm is pivoted to the fixed frame, and the connection end of the auxiliary support arm is pivoted to the middle segment of the sliding arm.

[0016] In the rear seat back curtain as described above, the fixed frame has a curtain connecting rod between the top ends of the two frame rods, and the connecting edge of the curtain is connected to the curtain connecting rod.

[0017] In the rear seat back curtain as described above, the fixed frame is provided with a curtain roller, the curtain is connected to the curtain roller, and the curtain roller can automatically roll up and release the curtain.

[0018] In the rear seat back curtain as described above, the fixed frame is provided with a curtain roller below the sliding groove, the curtain passes over the top of the frame rod, and the connection edge of the curtain is connected to the curtain roller.

[0019] In the rear seat back curtain as described above, the fixed frame is provided with a curtain roller between the top ends of the two frame rods, and the connection edge of the curtain is connected to the curtain roller.

[0020] In the rear seat back curtain as described above, the auxiliary support arms of the two folding support assemblies are each provided with a sliding block at the pivot end, and the sliding blocks are arranged on the sliding rails.

[0021] In the rear seat back curtain as described above, the auxiliary support arms of the two folding support assemblies are each provided with an elastic auxiliary component at the middle section, and the elastic auxiliary components can abut against the frame rods.

[0022] In the rear seat back curtain as described above, the auxiliary support arms of the two folding support assemblies are each provided with a sliding block at the pivot end, and the sliding blocks are arranged on the sliding rails, and the auxiliary support arms of the two folding support assemblies are each provided with an elastic auxiliary component at the middle section, and the elastic auxiliary components can abut against the frame rods.

[0023] The rear seat back curtain can be arranged between the rear seat and the coat rack behind the rear seat in a motor vehicle, the fixed frame is arranged adjacent to the coat rack, the folding curtain support mechanism is stretched, the movable edge rod is abutted against the back of the rear seat, the curtain is stretched from the fixed frame to the back of the rear seat, and the space between the back of the rear seat and the coat rack is shielded; when the passenger sitting on the rear seat adjusts the inclination angle of the back of the rear seat, the power of the back of the rear seat abutting against the movable edge rod drives the two folding support assemblies in the folding curtain support mechanism to automatically fold relative to each other, the curtain is automatically adapted to the change in the distance between the back of the rear seat and the coat rack, the shielding area is moderately reduced, and the curtain continuously provides shielding function between the back of the rear seat and the coat rack.

[0024] The folding curtain support mechanism can be further provided with an elastic auxiliary component at the middle section of the auxiliary support arm of the two folding support assemblies, the elastic auxiliary component can abut against the frame rod, the auxiliary support arm is provided with auxiliary elastic force, the two folding support assemblies are kept in the stretched state, and the dead point of the folding action of the two folding support assemblies is avoided. Attached Figure Description

[0025] Figure 1 This is a perspective view of the first preferred embodiment of the rear seat back curtain of the present invention.

[0026] Figure 2 yes Figure 1 The diagram shows a side view of the first preferred embodiment of the rear seat back curtain.

[0027] Figure 3 yes Figure 2 A top-view sectional view of section line AA shown.

[0028] Figure 4 yes Figure 1 The diagram shows a three-dimensional representation of the first preferred embodiment of the rear seat back curtain being folded under force.

[0029] Figure 5 yes Figure 1 The diagram shows a top cross-sectional view of the first preferred embodiment of the rear seat back curtain being folded under force.

[0030] Figure 6 This is a perspective view of the second preferred embodiment of the rear seat back curtain of the present invention.

[0031] Figure 7 yes Figure 6 The diagram shows a side view of the second preferred embodiment of the rear seat back curtain.

[0032] Figure 8 This is a perspective view of the third preferred embodiment of the rear seat back curtain of the present invention.

[0033] Figure 9 yes Figure 8 The diagram shows a side view of the third preferred embodiment of the rear seat back curtain.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10: Fixture

[0036] 11A: Frame pole

[0037] 11B: Frame pole

[0038] 12: Slide

[0039] 121: Groove

[0040] 13: Slide rail

[0041] 14: Curtain connecting rod

[0042] 15: Curtain Roller

[0043] 151: Curtain Roller

[0044] 20: curtain

[0045] 21: connecting edge

[0046] 22: movable edge

[0047] 30: folding curtain support mechanism

[0048] 31: folding support assembly

[0049] 311: sliding arm

[0050] 3111: group connecting end

[0051] 3112: sliding end

[0052] 3113: sliding member

[0053] 312: auxiliary support arm

[0054] 3121: pivot connecting end

[0055] 3122: connecting end

[0056] 3123: sliding block

[0057] 32: movable edge rod

[0058] 33: elastic member

[0059] 331: fixing member

[0060] 34: elastic auxiliary member DETAILED DESCRIPTION

[0061] The technical means adopted by the present application to achieve the predetermined purposes are further explained below in combination with the drawings and the preferred embodiments of the present application.

[0062] As shown in Figure 1 , Figure 6 and Figure 8 , the preferred embodiments of the rear seat back curtain of the present application are disclosed, and as can be seen from the drawings, the rear seat back curtain of the present application comprises a fixed frame 10, a curtain 20 and a folding curtain support mechanism 30. Among them:

[0063] The fixed frame 10 is used to be installed at the rear of the rear seat in a motor vehicle, as shown in the preferred embodiments of Figure 1 , Figure 6 and Figure 8 , the fixed frame 10 has at least one sliding groove 12 along the length direction, and the sliding groove 12 is formed with a notch 121 at one side of the fixed frame 10, and a sliding rail 13 extending along the length direction can also be provided on the inner side wall of the sliding groove 12.

[0064] As Figure 1 , Figure 6 and Figure 8 shown in the preferred embodiments, the fixing frame 10 comprises at least one frame rod 11A, 11B, wherein, as Figures 1 to 3 shown in the preferred embodiments, the fixing frame 10 has one frame rod 11A, which is horizontally arranged, and the sliding groove 12 is arranged on the frame rod 11A and forms the notch 121 on one side of the frame rod 11A. As Figures 6 to 9 shown in the preferred embodiments, the fixing frame 10 has two frame rods 11B, which are vertically arranged and oppositely arranged, and each of the two frame rods 11B is provided with one sliding groove 12, and each sliding groove 12 forms the notch 121 on one side of the frame rod 11B.

[0065] As Figure 1 , Figure 6 and Figure 8 shown in the preferred embodiments, the fixing frame 10 is provided with a curtain connecting rod 14 or a curtain roller 15, as Figures 1 to 2 and Figures 6 to 7 shown, the curtain roller 15 comprises a curtain roller shaft 151 and a winding assembly arranged in the curtain roller shaft 151, and the curtain roller 15 has the functions of automatically winding the curtain 20 on the curtain roller shaft 151 and unwinding the curtain 20 from the curtain roller shaft 151. The curtain roller 15 is a product that already exists, and its specific structure will not be described here. As Figures 1 to 2 shown in the first preferred embodiment, the fixing frame 10 is provided with the curtain roller 15 in the frame rod 11A and below the sliding groove 12. As Figures 6 to 7 shown in the second preferred embodiment, the fixing frame 10 is provided with the curtain roller 15 between the top ends of the two frame rods 11B. As Figures 8 to 9 shown in the third preferred embodiment, the fixing frame 10 is provided with the curtain connecting rod 14 between the top ends of the two frame rods 11B.

[0066] As Figures 1 to 3 , Figures 6 to 7 and Figures 8 to 9 shown, the curtain 20 is a soft component made of shading cloth, and the two opposite side edges of the curtain 20 are a connecting edge 21 and a movable edge 22, respectively, and the connecting edge 21 is connected to the fixing frame 10. The connecting edge 21 of the curtain 20 is fixed to the curtain connecting rod 14 or the curtain roller shaft 151 of the curtain roller 15.

[0067] As Figures 1 to 3 , Figures 6 to 7 and Figures 8 to 9As shown, the folding curtain support mechanism 30 is installed on the fixed frame 10 and connected to the movable edge 22 of the curtain 20, enabling the curtain 20 to unfold and fold. The folding curtain support mechanism 30 includes two folding support assemblies 31, a movable edge rod 32, and one or two elastic components 33. The two folding support assemblies 31 are installed on both sides of the fixed frame 10, and are connected to the movable edge rod 32, which in turn connects to the movable edge 22 of the curtain 20. The elastic component 33 is located in the fixed frame 10 and provides elasticity to the two folding support assemblies 31, causing them to extend and push the movable edge rod 32 connecting the curtain 20 away from the fixed frame 10, thus unfolding the curtain 20. Figures 4 to 5 As shown, by operating the movable side rod 32, the two folding support components 31 connected to the movable side rod 32 are folded and pulled closer to the fixed frame 10, so that the curtain 20 is closed.

[0068] like Figures 1 to 3 In the first preferred embodiment shown, the two foldable support assemblies 31 are arranged opposite to each other on the left and right sides of the horizontally arranged frame rod 11A of the fixed frame 10, as shown. Figures 6 to 7 as well as Figures 8 to 9 In the second and third preferred embodiments shown, the two foldable support components 31 are two rods 11B that are respectively installed on the left and right sides of the fixed frame 10 and arranged longitudinally.

[0069] like Figures 1 to 3 , Figures 6 to 7 as well as Figures 8 to 9 As shown, each of the folding support components 31 includes a sliding arm 311 and an auxiliary support arm 312. The two ends of the sliding arm 311 are a set of connecting ends 3111 and a sliding end 3112, respectively. The sliding end of the sliding arm 311 extends into the frame rods 11A and 11B through the slots 121 of the frame rods 11A and 11B, and can move along the length direction of the frame rods 11A and 11B. In the preferred embodiment disclosed in the figure, a sliding member 3113 is pivotally mounted on the sliding end 3112 of the sliding arm 311. The sliding member 3113 is installed in the slide rail 13 in the frame rods 11A and 11B, so that the sliding end 3112 of the sliding arm 311 can move back and forth along the length direction of the frame rods 11A and 11B.

[0070] The auxiliary support arm 312 has a pivot end 3121 and a connecting end 3122 at its two ends. The pivot end 3121 of the auxiliary support arm 312 is pivotally mounted on the fixed frame 10, and the connecting end 3122 of the auxiliary support arm 312 is pivotally connected to the middle section of the sliding arm 311. The folding support assembly 31 changes its extended or folded shape by sliding the sliding arm 311.

[0071] The movable side bar 32 is arranged at one side of the fixed frame 10 and connected to the two folding support assemblies 31. The movable side bar 32 can be pushed away from the fixed frame 10 and pulled close to the fixed frame 10. As shown in the preferred embodiments of Figure 1 , Figure 6 and Figure 8 , the two ends of the movable side bar 32 are respectively connected to the assembly connecting end 3111 of the sliding arm 311 of the two folding support assemblies 31, so that the two folding support assemblies 31 can jointly drive the movable side bar 32 away from the fixed frame 10 and support the movable side bar 32, and the two folding support assemblies 31 can drive the movable side bar 32 to move close to the fixed frame 10.

[0072] The elastic member 33 can be one or two. The elastic member 33 can be a spring, an elastic strip or other equivalent elastic element. The elastic member 33 is arranged in the fixed frame 10. The elastic member 33 can provide elastic force to the sliding end 3112 of the sliding arm 311 of the two folding support assemblies 31 or the sliding piece 3113 pivoted to the sliding end 3112.

[0073] As shown in the first preferred embodiment of Figures 1 to 3 , the folding curtain support mechanism 30 has one elastic member 33. The elastic member 33 is a compression spring. The middle section of the elastic member 33 is combined with a fixed piece 331 and fixed in the middle section of the sliding groove 12 of the frame rod 11A of the fixed frame 10. The two ends of the elastic member 33 are respectively abutted against the sliding end 3112 of the sliding arm 311 of the two folding support assemblies 31 or the sliding piece 3113 pivoted to the sliding end 3112, so that the two folding support assemblies 31 are kept in the extended state. In addition, the elastic member 33 can be replaced by a tensile spring or a torsion spring and connected to the frame rod 11A and the sliding arm 311 or the auxiliary support arm 312 to provide elastic force to the sliding arm 311 or the auxiliary support arm 312, so that the two folding support assemblies 31 are kept in the extended state, as shown in the first preferred embodiment of Figures 1 to 3 . One elastic member 33 can be replaced by two compression spring type elastic members 33. One end of each of the two elastic members 33 is fixed to the middle section of the sliding groove 12 of the frame rod 11A of the fixed frame 10. The other end of each of the two elastic members 33 is respectively abutted against the sliding end 3112 of the sliding arm 311 of the two folding support assemblies 31 or the sliding piece 3113 pivoted to the sliding end 3112, so that the two folding support assemblies 31 are kept in the extended state. In addition, the elastic member 33 can be replaced by a tensile spring or a torsion spring and connected to the frame rod 11A and the sliding arm 311 or the auxiliary support arm 312 to provide elastic force to the sliding arm 311 or the auxiliary support arm 312, so that the two folding support assemblies 31 are kept in the extended state.

[0074] As shown in the first preferred embodiment ofFigure 6 and Figure 8 In the second and third preferred embodiments shown, the folding curtain support mechanism 30 has two elastic components 33. These two elastic components 33 are compression elastic and are respectively installed in the sliding grooves 12 of the two support rods 11B of the fixing frame 10. One end of each elastic component 33 abuts against the sliding end 3112 of the sliding arm 311 of the two folding support assemblies 31 or the sliding member 3113 pivotally mounted on the sliding end 3112, keeping the two folding support assemblies 31 in an extended state. Alternatively, the two elastic components 33 can be replaced with tension springs or torsion springs, respectively connected to the two support rods 11B and the sliding arm 311 or the auxiliary support arm 312, providing elastic force to the sliding arm 311 or the auxiliary support arm 312, thus keeping the two folding support assemblies 31 in an extended state.

[0075] like Figure 1 , Figure 3 , Figure 6 and Figure 8 In the preferred embodiment shown, the fixing frame 10 may also have a slider 3123 on both sides of the slide rail 13 near the frame rods 11A and 11B. The pivot end 3121 of the auxiliary support arm 312 is pivotally mounted on the slider 3123, and can slide a limited distance on the slide rail 13 through the slider 3123, so as to avoid the auxiliary support arm 312 connected to the slide arm 311 from generating a dead point during the rotation process.

[0076] like Figure 1 , Figure 3 , Figure 6 and Figure 8 In the preferred embodiment shown, the folding curtain support mechanism 30 further includes two elastic auxiliary components 34. The elastic auxiliary components 34 can be springs, elastic strips or other equivalent elastic elements. The two elastic auxiliary components 34 are respectively connected between the middle section of the auxiliary support arm 312 of the fixed frame 10 and the two folding support components 31, so as to provide auxiliary elastic force to the auxiliary support arm 312, so that the two folding support components 31 remain in the extended state, and can avoid dead points after the two folding support components are closed, ensuring that the two folding support components 31 can maintain normal extension and folding actions.

[0077] At Figure 1 , Figure 3 , Figure 6 and Figure 8 As shown in the accompanying drawings, the elastic auxiliary components 34 are selected as compression springs. One end of each of the two elastic auxiliary components 34 is installed in the middle section of the auxiliary support arm 312 of the two foldable support assemblies 31. The other end of each of the two elastic auxiliary components 34 can press against the frame rods 11A and 11B of the fixed frame 10 respectively, so as to provide auxiliary elastic force to the auxiliary support arm 312.

[0078] The present application is a rear seat back curtain installed between a rear seat and a coat hanger behind the rear seat in a motor vehicle, and is capable of providing a shielding function between the rear seat and the coat hanger behind the rear seat. Figures 1 to 5 As shown in the first preferred embodiment of the rear seat back curtain, the two folding support components of the folding curtain support mechanism 30 of the present application are kept in an extended state under the elastic force provided by the elastic member 33, and can push the movable edge rod 32 connected to the movable edge 22 of the curtain 20 against the upper section of the rear seat back, so that the curtain 20 is in an unfolded state and can provide a shielding function between the seat back of the rear seat and the coat hanger behind the rear seat. When the passenger sitting on the rear seat adjusts the inclination angle of the rear seat back, the force of the rear seat back pushing against the movable edge rod 32 drives the two folding support components 31 of the folding curtain support mechanism 30 to automatically fold relative to each other, and the curtain 20 is automatically adapted to the change in the distance between the rear seat back and the coat hanger, so that the shielding area of the curtain 20 is appropriately reduced, and the curtain 20 still provides a shielding function between the seat back of the rear seat and the coat hanger.

[0079] As shown in the first preferred embodiment of the rear seat back curtain, the two folding support components of the folding curtain support mechanism 30 of the present application are kept in an extended state under the elastic force provided by the elastic member 33, and can push the movable edge rod 32 connected to the movable edge 22 of the curtain 20 against the upper section of the rear seat back, so that the curtain 20 is in an unfolded state and can provide a shielding function between the seat back of the rear seat and the coat hanger behind the rear seat. When the passenger sitting on the rear seat adjusts the inclination angle of the rear seat back, the force of the rear seat back pushing against the movable edge rod 32 drives the two folding support components 31 of the folding curtain support mechanism 30 to automatically fold relative to each other, and the curtain 20 is automatically adapted to the change in the distance between the rear seat back and the coat hanger, so that the shielding area of the curtain 20 is appropriately reduced, and the curtain 20 still provides a shielding function between the seat back of the rear seat and the coat hanger. Figure 8 Figure 9 As shown in the third preferred embodiment of the rear seat back curtain, the two folding support components 31 of the folding curtain support mechanism 30 of the present application are kept in an extended state under the elastic force provided by the elastic member 33, and can push the movable edge rod 32 connected to the movable edge 22 of the curtain 20 against the upper section of the rear seat back, so that the curtain 20 is pulled tight and in an unfolded state, and can provide a shielding function between the seat back of the rear seat and the coat hanger behind the rear seat. When the passenger sitting on the rear seat adjusts the inclination angle of the rear seat back, the force of the rear seat back pushing against the movable edge rod 32 drives the two folding support components 31 of the folding curtain support mechanism 30 to automatically fold relative to each other, and the curtain 20 is automatically adapted to the change in the distance between the rear seat back and the coat hanger, so that the curtain 20 is in a natural state of hanging down, and the curtain 20 still provides a shielding function between the seat back of the rear seat and the coat hanger.

[0080] ​The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical contents to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not depart from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A rear seat back curtain, characterized in that, It is used for installation behind a rear seat back, the rear seat back curtain comprising: A fixed frame; A curtain, with a connecting edge and a movable edge on opposite sides, the connecting edge connecting to the fixed frame; and A folding curtain support mechanism is mounted on the fixed frame and connected to the movable edge of the curtain. The folding curtain support mechanism includes: A movable side rod is located on the outside of the fixed frame and connects to the movable side of the curtain; Two folding support assemblies are disposed opposite each other on both sides of the fixed frame and are connected together to the movable side rod; and One or two elastic components are installed in the fixed frame and can provide elastic force to the two folding support components, so that the two folding support components can extend by the elastic force and push the movable side rod away from the fixed frame, and keep the movable side rod against the rear seat back and unfold the curtain, and the angle change of the rear seat back can drive the movable side rod, so that the two folding support components can adaptively close the curtain.

2. The rear seat back curtain according to claim 1, characterized in that, The fixing frame has a horizontally arranged frame rod with a sliding groove in the frame rod. The sliding groove forms a slot in the frame rod, and a slide rail is provided in the sliding groove. The two retractable support assemblies are arranged opposite to each other on the left and right sides of the frame. Each retractable support assembly includes a sliding arm and an auxiliary support arm. The two ends of the sliding arm are a connecting end and a sliding end, respectively. The sliding end of the sliding arm extends into the frame through the slot of the frame, and a sliding member is pivotally mounted on the sliding end of the sliding arm. The sliding member is mounted on a slide rail in the frame. The elastic member is located in the frame and abuts against the sliding member. The two ends of the auxiliary support arm are a pivot connecting end and a connecting end, respectively. The pivot connecting end of the auxiliary support arm is pivotally mounted on the fixed frame, and the connecting end of the auxiliary support arm is pivotally connected to the middle section of the sliding arm.

3. The rear seat back curtain according to claim 1, characterized in that, The fixing frame has two rods, which are vertically arranged and opposite to each other. Each rod has a groove, which forms a slot in the rod. Each groove is provided with a slide rail. The two retractable support assemblies are respectively installed on the two frame poles and arranged opposite to each other. Each retractable support assembly includes a sliding arm and an auxiliary support arm. The two ends of the sliding arm are a connecting end and a sliding end, respectively. The sliding end of the sliding arm extends into the frame pole through the slot of the frame pole, and a sliding member is pivotally mounted on the sliding end of the sliding arm. The sliding member is mounted on a slide rail in the frame pole. Each of the two frame poles is provided with an elastic member, which abuts against the sliding member. The two ends of the auxiliary support arm are a pivot end and a connecting end, respectively. The pivot end of the auxiliary support arm is pivotally mounted on the fixed frame, and the connecting end of the auxiliary support arm is pivotally connected to the middle section of the sliding arm.

4. The rear seat back curtain according to claim 3, characterized in that, The fixing frame has a curtain connecting rod between the tops of the two frame rods, and the connecting edge of the curtain is connected to the curtain connecting rod.

5. The rear seat back curtain according to claim 1, characterized in that, The fixed frame is equipped with a curtain retractor, which is connected to the connecting edge of the curtain. The curtain retractor can automatically retract and release the curtain.

6. The rear seat back curtain according to claim 2, characterized in that, The frame rod of the fixed frame is equipped with a curtain retractor below the slide groove. The curtain wraps around the top of the frame rod, and the connecting edge of the curtain is connected to the curtain retractor.

7. The rear seat back curtain according to claim 3, characterized in that, The fixed frame has a curtain retractor between the tops of the two poles, and the connecting edge of the curtain is connected to the curtain retractor.

8. The rear seat back curtain according to claim 2, 3, 4, 6 or 7, characterized in that, The auxiliary support arms of the two folding support components are each pivotally mounted with a slider at their pivot ends, and the sliders are mounted on the slide rail.

9. The rear seat back curtain according to claim 2, 3, 4, 6 or 7, characterized in that, Each of the two folding support components has an elastic auxiliary component in the middle section of its auxiliary support arm, and the elastic auxiliary component can abut against the frame rod.

10. The rear seat back curtain according to claim 2, 3, 4, 6 or 7, characterized in that, Each of the two retractable support assemblies has a slider pivotally mounted at its pivot end on the auxiliary support arm, and the slider is mounted on the slide rail. Each of the two retractable support assemblies has an elastic auxiliary component in the middle section, and the elastic auxiliary component can abut against the frame rod.

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