Automobile sunshade curtain winding device

Abstract

The invention belongs to the technical field of automobile sunshade curtain winding, and provides an automobile sunshade curtain winding device which comprises a crankshaft, the crankshaft is of an arc-shaped structure, the end of the crankshaft is sleeved with a lining, the peripheral side of the crankshaft is sleeved with an elastic piece, the peripheral side of the crankshaft is sleeved with a flexible piece, the flexible piece is connected with the lining in a sleeved mode, and the elastic piece is connected with the lining in a sleeved mode. The flexible piece is connected with curtain cloth, and the end, away from the flexible piece, of the curtain cloth is connected with a balance weight rod. The crankshaft is designed to be of the arc-shaped structure according to the shape of the car window, the crankshaft is matched with the car window in shape, the space in the car is saved, the attractiveness degree of the interior trim of the car is improved, a continuous sliding rotating structure is formed through cooperation of the flexible part and the lining, curtain cloth unfolding is achieved, and the service life of the curtain cloth is prolonged. The curtain cloth rolling device has the advantages of being simple in structure and convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive sunshade retracting technology, and specifically relates to an automotive sunshade retracting device. Background Art

[0002] A vehicle sunshade is an auxiliary tool for vehicles. Its main functions are to block ultraviolet rays and strong light, prevent the items inside the vehicle from aging and fading due to long-term exposure to the sun, reduce the temperature inside the vehicle, relieve the air-conditioning refrigeration pressure, and prevent the outside from peeping into the vehicle interior to improve safety.

[0003] The commonly used curtain cloth retracting system of vehicle sunshades is a straight shaft, which occupies the head space of passengers inside the vehicle, resulting in poor passenger comfort. A small number of arc-shaped retracting shaft products are not accepted by the market due to their complex structure, many quality problems, and high costs.

[0004] Therefore, those skilled in the art have proposed an automotive sunshade retracting device to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an automotive sunshade retracting device to solve the problems that the straight shaft used in the existing curtain cloth retracting system of vehicle sunshades occupies space and the arc-shaped retracting shaft has a complex structure.

[0006] An automotive sunshade retracting device includes a crankshaft. The crankshaft is of an arc-shaped structure. Bushings are sleeved at the ends of the crankshaft. An elastic member is sleeved on the circumferential side of the crankshaft. A flexible member is sleeved on the circumferential side of the crankshaft. The flexible member is socketed with the bushing. The flexible member is connected to a curtain cloth, and one end of the curtain cloth away from the flexible member is connected to a counterweight rod.

[0007] Preferably, the bushing is provided with a card slot. The shape of the card slot is adapted to one end of the elastic member. One end of the elastic member is connected to the card slot. The crankshaft is provided with an anti-rotation member. The other end of the elastic member is connected to the anti-rotation member. The elastic member is located between the crankshaft and the flexible member.

[0008] Preferably, it further includes a bracket. The bracket passes through the bushing and is connected to the end of the crankshaft.

[0009] Preferably, the bushing is provided with an elastic pressing portion. When the elastic pressing portion is stressed, it deforms along a preset direction. The elastic pressing portion is provided with a protruding portion. The protruding portion is socketed with the flexible member.

[0010] Preferably, the flexible member adapts to the arc of the crankshaft.

[0011] Preferably, it further includes a buffer member connected to the counterweight rod and a sound-absorbing member connected to the buffer member.

[0012] Preferably, the buffer member includes an extension plate fixedly connected to the counterweight rod. The extension plate is fixedly connected with a receiving cylinder. The receiving cylinder is slidably connected with a telescopic rod. One end of the telescopic rod is fixedly connected with a piston plate. The piston plate is provided with a through hole. A first spring is arranged in the same direction as the telescopic rod.

[0013] Preferably, one end of the telescopic rod extends into the receiving cylinder and is fixedly connected with the piston plate. The piston plate is slidably connected with the inner wall of the receiving cylinder. One end of the first spring is connected with the receiving cylinder, and the other end of the first spring is connected with the piston plate.

[0014] Preferably, the sound-absorbing member includes a support frame rotatably connected to the telescopic rod. The support frame is rotatably connected with a roller. The extension plate is fixedly connected with an auxiliary frame. The auxiliary frame is provided with a guide groove. The guide groove is slidably connected with an auxiliary rod. The auxiliary rod is fixedly connected with the support frame. A second spring is connected between the support frame and the auxiliary frame. The roller is provided with a guiding track in a matching manner.

[0015] Preferably, the guide groove is an arc-shaped groove. The guiding track is composed of an inclined runway, a straight runway, and an arc-shaped runway.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the crankshaft is designed as an arc-shaped structure according to the shape of the car window, so that the crankshaft matches the shape of the car window, which not only saves the interior space of the car, but also improves the aesthetic degree of the vehicle interior. The flexible member and the bushing cooperate to form a continuous sliding and rotating structure to realize the unfolding of the curtain cloth, and the elastic potential energy of the elastic member is used to ensure the winding of the curtain cloth, which has the advantages of simple structure and convenient use.

[0018] 2. In the present invention, when the curtain cloth is wound up, the elastic member drives the curtain cloth and the counterweight rod to move. Before the counterweight rod is about to move to the maximum stroke, the telescopic rod is stressed and drives the piston plate to move in the receiving cylinder. At this time, the first spring deforms and absorbs the energy of the elastic member. At the same time, the hydraulic oil in the receiving cylinder passes through the through hole and moves from one end of the receiving cylinder to the other end, converting kinetic energy into heat energy, which has the effect of suppressing the reciprocating movement of the first spring, and thus plays a buffering role, avoiding the collision between the counterweight rod and the crankshaft, and prolonging the service life of the device.

[0019] 3. In the present invention, when the curtain cloth is wound up, the elastic member drives the curtain cloth and the counterweight rod to move. The roller moves in the guiding track, avoiding hard collision between the telescopic rod and other parts. At the same time, the rubber on the periphery of the roller absorbs noise, thus avoiding noise generated by collision when the curtain cloth is wound up. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial cross-sectional view of a car sunshade curtain winding device;

[0021] Figure 2 is the enlarged schematic view of part A in Figure 1 ;

[0022] Figure 3 is Figure 1 the enlarged schematic view of part B in

[0023] Figure 4 is the first schematic view of the bushing of a car sunshade retracting device;

[0024] Figure 5 is the second schematic view of the bushing of a car sunshade retracting device;

[0025] Figure 6 is the schematic view of the curtain cloth deployment of a car sunshade retracting device;

[0026] Figure 7 is Figure 6 the enlarged schematic view of part C in

[0027] Figure 8 is the cross-sectional view of the buffer and the sound-absorbing part in the vertical state of a car sunshade retracting device;

[0028] Figure 9 is the schematic view of the buffer and the sound-absorbing part in the horizontal state of a car sunshade retracting device;

[0029] Figure 10 is the cross-sectional view of the buffer and the sound-absorbing part in the horizontal state of a car sunshade retracting device.

[0030] In the figure:

[0031] 1. Crankshaft; 2. Bushing; 3. Elastic part; 4. Flexible part; 5. Curtain cloth; 6. Counterweight rod; 7. Card slot; 8. Anti-rotation part; 9. Bracket; 10. Elastic pressing part; 11. Protrusion part; 12. Buffer; 1201. Extension plate; 1202. Accommodating cylinder; 1203. Telescopic rod; 1204. Piston plate; 1205. Through hole; 1206. First spring; 13. Sound-absorbing part; 1301. Support frame; 1302. Roller; 1303. Auxiliary frame; 1304. Guide groove; 1305. Auxiliary rod; 1306. Second spring; 1307. Guide track. Specific Embodiments

[0032] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0033] Example 1

[0034] As shown in Attachment Figure 1 to Attachment Figure 3As shown in the figure, this embodiment provides a retracting device for an automotive sunshade. This retracting device can be applied to automotive skylights, side windows, storage curtains, and projection screens, and includes a crankshaft 1. The crankshaft 1 is an arc-shaped structure, and the arc of the crankshaft 1 is at least the same as the arc of a part of the window structure. Since the window usually has a certain arc, the arc-shaped structure of the crankshaft 1 can match the arc of the window structure. The arc-shaped crankshaft 1 can not only reduce the uneven force on the curtain cloth 5 during operation but also enhance the adaptability to the window structure. When the curtain cloth 5 is in the retracted state, it can fit more closely to the shape of the window, which not only saves space inside the vehicle but also improves the aesthetic degree of the vehicle interior. The matching degree between the crankshaft 1 and the window can be adjusted by the arc curvature radius of the crankshaft 1 to adapt to the window structures of different vehicle models;

[0035] A bushing 2 is sleeved on the end of the crankshaft 1. The bushing 2 is arranged in a circular ring or cylindrical structure, and its inner diameter matches the outer diameter of the end of the crankshaft 1, forming an assembled state that fits the end of the crankshaft 1, so that the bushing 2 can be stably sleeved on the end of the crankshaft 1;

[0036] An elastic member 3 is sleeved on the circumference of the crankshaft 1. The elastic member 3 is a metal spiral spring, which is suitable for axial stretching and compression. The surface of the elastic member 3 can be coated with a lubricant to reduce sliding friction. The elastic member 3 realizes the dynamic restoration of the flexible member 4 through elastic force, so that the curtain cloth 5 can adaptively adjust its state when being retracted or deployed, avoiding jamming or slack phenomena. The function of the elastic member 3 is to provide a driving force for the rotation reset of the flexible member 4, so that the sunshade can automatically return to the retracted state;

[0037] A flexible member 4 is sleeved on the circumference of the crankshaft 1. The flexible member 4 is sleeved with the bushing 2. The flexible member 4 is a flexible tube, which has flexibility and a certain mechanical strength. The flexible member 4 has a circular cross-section, which is convenient for sliding and rotating. Nested grooves are opened inside both ends of the flexible member 4, and the grooves cooperate with the ends of the bushing 2 for firm connection. The flexible member 4 and the bushing 2 form a sliding and rotating structure, which can slide and rotate around the crankshaft 1, thereby realizing the retraction and deployment of the sunshade;

[0038] The end of the flexible member 4 is thickened to enhance the stability of being sleeved on the bushing 2 and prevent slipping. An anti-slip ring can be added to the outer wall of the end of the flexible member 4. The anti-slip ring can increase the friction with the bushing 2 and avoid loosening or offset of the flexible member 4 and the bushing 2 during operation. The surface of the flexible member 4 can be subjected to wear-resistant treatment, such as adding a wear-resistant coating or fiber layer on the surface of the flexible member 4, to suit high-frequency sliding and rotating scenarios; The surface of the flexible member 4 can also be set as a corrugated structure or made of sound-absorbing material to reduce the noise generated during the sliding and rotating process;

[0039] The flexible member 4 is connected to a curtain cloth 5. The curtain cloth 5 is made of a flexible sheet material. The surface of the curtain cloth 5 can be specially treated according to its use, such as a waterproof coating, an anti-ultraviolet coating, or an antistatic treatment, to adapt to different use environments. The curtain cloth 5 is set as a rectangle or a trapezoid and matches the width of the vehicle window. One end of the curtain cloth 5 away from the flexible member 4 is connected to a counterweight rod 6, making the curtain cloth 5 flatter when unfolded.

[0040] As can be seen from the above, during use, when the sliding and rotating structure composed of the flexible member 4 and the bushing 2 rotates directionally along the axis of the crankshaft 1, the elastic member 3 is forced to wind and store a restoring torque opposite to the rotation direction. The restoring torque of the elastic member 3 drives the bushing 2 and the flexible member 4 to rotate reversely along the axis of the crankshaft 1, thereby realizing the winding of the curtain cloth 5.

[0041] Embodiment 2

[0042] As shown in the attached Figure 1 to the attached Figure 5 As shown, this embodiment is basically the same as the previous embodiment. The difference is that the bushing 2 is provided with a slot 7. The shape of the slot 7 is adapted to one end of the elastic member 3. One end of the elastic member 3 is connected to the slot 7. The shape of the slot 7 matches the shape of the end of the elastic member 3, so that the end of the elastic member 3 is embedded in the slot 7 for fixation. It should be noted that in this example, the end of the elastic member 3 close to the bushing 2 is defined as the end, and the end of the elastic member 3 away from the bushing 2 is defined as the front end. The crankshaft 1 is provided with a rotation stop member 8. The other end of the elastic member 3 is connected to the rotation stop member 8. The two can be connected by means of rivets, pins, snap fasteners, or nesting. The rotation stop member 8 can be set as a plug structure or a rotation stop terminal. The crankshaft 1 is provided with a recessed groove or a limit hole. The rotation stop member 8 is matched with the crankshaft 1 by means of embedding or pin connection, which is convenient for disassembly and assembly. Through the fixing action of the rotation stop member 8, the rigid connection between the elastic member 3 and the crankshaft 11 is enhanced. The function of the rotation stop member 8 is to cause relative rotation between the front end and the tail end of the elastic member 3, so that the torsional force of the elastic member 3 can be transmitted. When the elastic member 3 provides a torque reset function, the rotation stop member 8 can effectively transmit the reaction force of the elastic member 3. The elastic member 3 is located between the crankshaft 1 and the flexible member 4. The elastic member 3 can not only transmit elastic force, but also provide a certain supporting force to enhance the stability of the flexible member 4 during sliding or rotation. At the same time, the elastic member 3 can effectively absorb the vibration and impact force generated when the curtain cloth 5 rotates during operation, so as to protect the crankshaft 1 and the bushing 2 from damage and improve the service life of the curtain cloth 5.

[0043] Specifically, it further includes a bracket 9. The bracket 9 passes through the bushing 2 and extends inward to be connected to the end of the crankshaft 1 for fixing the crankshaft 1. The bracket 9 can provide sufficient rigidity to prevent the crankshaft 1 from being excessively deformed or displaced during use. The other end of the bracket 9 is fixedly connected to the window or the vehicle body to realize the integrated installation of the retractor and the vehicle body. The outer end shape of the bracket 9 needs to be set according to the actual geometric shape of the window frame to prevent the retractor from affecting the normal opening and closing or sealing function of the window.

[0044] Furthermore, the bushing 2 is provided with an elastic pressing portion 10. When the elastic pressing portion 10 is stressed, it deforms along a preset direction. The elastic pressing portion 10 is integrally formed with the main body of the bushing 2. One end of it is connected to the main body of the bushing 2, and the other end is an open structure. The elastic pressing portion 10 can be deformed by force in the radial direction. During the sleeving process of the flexible member 4, the elastic pressing portion 10 can shrink towards the inside of the bushing 2 to reduce the assembly difficulty. At the same time, after the assembly is completed, the elastic pressing portion 10 automatically restores its shape and closely cooperates with the end of the flexible member 4 to apply pressure to the inner wall of the flexible member 4 through the resilience to provide continuous support. The elastic pressing portion 10 is provided with a convex portion 11. The convex portion 11 is sleeved with the flexible member 4. The convex portion 11 is integrally formed with the elastic pressing portion 10. The height of the convex portion 11 is greater than the outer circular surface of the bushing 2, so that it can limit the position of the end of the flexible member 4 in the normal state. When stressed and deformed, the convex portion 11 can sink below the outer circular surface of the bushing 2. After the pressure is relieved, the convex portion 11 automatically returns to the normal state and resumes its limiting function.

[0045] Furthermore, the flexible member 4 adapts to the radian of the crankshaft 1.

[0046] Embodiment III

[0047] As shown in the attached Figure 6 to the attached Figure 10 figures, this embodiment is basically the same as the previous embodiment. The difference is that it further includes a buffer member 12 connected to the counterweight rod 6. When the elastic member 3 restores the torque to drive the bushing 2 and the flexible member 4 to rotate in the opposite direction along the axis of the crankshaft 1 for winding the curtain cloth 5, the counterweight rod 6 also moves upward. The counterweight rod 6 is likely to collide with other parts or the vehicle body. By setting the buffer assembly, the impact of the counterweight rod 6 can be reduced. A sound-absorbing member 13 is connected to the buffer member 12, and the sound-absorbing member 13 is used to reduce the sound generated during the collision.

[0048] Specifically, the buffer 12 includes an extension plate 1201 fixedly connected to the counterweight rod 6. The extension plate 1201 extends into an area with sufficient space according to the space inside the vehicle, facilitating the installation of other parts. The extension plate 1201 is fixedly connected with a receiving cylinder 1202. The receiving cylinder 1202 is filled with hydraulic oil. A telescopic rod 1203 is slidably connected to the receiving cylinder 1202. When the counterweight rod 6 drives the extension plate 1201 to rise, before the counterweight rod 6 collides, the telescopic rod 1203 first contacts an obstacle. Then, the telescopic rod 1203 moves within the receiving cylinder 1202. One end of the telescopic rod 1203 is fixedly connected with a piston plate 1204. The telescopic rod 1203 drives the piston plate 1204 to move within the receiving cylinder 1202. The piston plate 1204 is provided with a through hole 1205. During the movement of the piston plate 1204, the hydraulic oil passes through the through hole 1205 and moves from one end of the receiving cylinder 1202 to the other end of the receiving cylinder 1202. The hydraulic oil converts kinetic energy into heat energy, absorbs the energy of the collision, reduces the damage of the impact, and has the effect of suppressing the reciprocating movement of the first spring 1206. A first spring 1206 is arranged in the same direction as the telescopic rod 1203. According to requirements, one first spring 1206 can be provided and sleeved on the periphery of the telescopic rod 1203, or two first springs 1206 can be provided and arranged on the left and right sides of the telescopic rod 1203. When the telescopic rod 1203 and the piston plate 1204 move, the first spring 1206 deforms, absorbs the energy of the collision, reduces the impact of the collision, and prolongs the service life of the device.

[0049] Further, one end of the telescopic rod 1203 extends into the receiving cylinder 1202 and is fixedly connected with the piston plate 1204. The piston plate 1204 is slidably connected with the inner wall of the receiving cylinder 1202. The piston plate 1204 slides along the inner wall of the receiving cylinder 1202, playing a role in stabilizing the movement of the telescopic rod 1203. One end of the first spring 1206 is connected to the receiving cylinder 1202, and the other end of the first spring 1206 is connected to the piston plate 1204.

[0050] Further, the sound insulation member 13 includes a support frame 1301 rotatably connected to the telescopic rod 1203. The support frame 1301 is rotatably connected to a roller 1302. When the curtain cloth 5 is unfolded, the support frame 1301 and the roller 1302 are in a vertical state. The circumferential side of the roller 1302 is wrapped with rubber, which can absorb noise, thereby avoiding noise generated when the curtain cloth 5 is wound up. The extension plate 1201 is fixedly connected with an auxiliary frame 1303. The auxiliary frame 1303 is provided with a guide groove 1304. The guide groove 1304 is slidably connected with an auxiliary rod 1305. When the support frame 1301 rotates from the vertical state to the horizontal state, the auxiliary rod 1305 rotates in the guide groove 1304. At the same time, the guide groove 1304 plays a limiting role to ensure that the support frame 1301 can rotate at most 90°. The auxiliary rod 1305 is fixedly connected with the support frame 1301. The support frame 1301 and the auxiliary frame 1303 are connected with a second spring 1306. When the support frame 1301 rotates from the vertical state to the horizontal state, the second spring 1306 is stretched and stores energy. When the roller 1302 disengages from the guide track 1307, the second spring 1306 returns to its original state and pulls the support frame 1301 to rotate from the horizontal state to the vertical state. The roller 1302 is provided with a matching guide track 1307. The guide track 1307 is installed on the roof or the side of the window. As the counterweight rod 6 rises, the roller 1302 rises synchronously and moves into contact with the guide track 1307. The shape of the guide track 1307 causes the support frame 1301 and the roller 1302 to rotate to the horizontal state.

[0051] Further, the guide groove 1304 is an arc-shaped groove. The guide groove 1304 ensures that the support frame 1301 can rotate at most 90°. The guide track 1307 is composed of an inclined runway, a straight runway, and an arc-shaped runway. As the roller 1302 rises, the roller 1302 first contacts the inclined runway. The inclined runway causes the support frame 1301 and the roller 1302 to rotate towards the horizontal state. When the support frame 1301 and the roller 1302 rotate to the horizontal state, they move on the straight runway until the roller 1302 abuts against the arc-shaped runway.

[0052] As can be seen from the above, when the restoring torque of the elastic member 3 drives the bushing 2 and the flexible member 4 to rotate in the reverse direction along the axis of the crankshaft 1 for winding the cord fabric 5, the counterweight rod 6 drives the buffer member 12 and the sound-absorbing member 13 to move upward. The roller 1302 contacts the inclined runway of the guiding track 1307. The inclined runway causes the roller 1302 and the support frame 1301 to rotate from the vertical state to the horizontal state. During the rotation of the support frame 1301, the auxiliary rod 1305 rotates and moves within the guiding groove 1304 to ensure that the support frame 1301 rotates by 90°. At this time, the second spring 1306 is stretched. The roller 1302 moves from the inclined runway to the straight runway until the roller 1302 abuts against the arc runway. When the roller 1302 contacts the guiding track 1307, the rubber on the roller 1302 can absorb noise and the energy of impact, avoiding the generation of noise caused by the collision between the roller 1302 and the guiding track 1307;

[0053] During the contact between the roller 1302 and the inclined runway of the guiding track 1307, the cord fabric 5 is still being wound up. The counterweight rod 6, the extension plate 1201 and the receiving cylinder 1202 are still moving upward. At this time, the telescopic rod 1203 moves downward relative to the receiving cylinder 1202. The telescopic rod 1203 drives the piston plate 1204 to move downward. The hydraulic oil passes through the through hole 1205 and moves from one end of the receiving cylinder 1202 to the other end of the receiving cylinder 1202. The hydraulic oil converts kinetic energy into heat energy, absorbs the energy of the collision, reduces the damage caused by the impact. The first spring 1206 is stretched, consuming the energy of the upward movement of the counterweight rod 6, thereby playing a buffering role and avoiding the collision between the counterweight rod 6 and the crankshaft 1, extending the service life of the device;

[0054] Similarly, when the cord fabric 5 is unwound, the counterweight rod 6 moves downward. The first spring 1206 drives the piston plate 1204 and the telescopic rod 1203 to reset. The second spring 1306 drives the support frame 1301 to reset, preparing for the next buffering and sound absorption.

[0055] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0056] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly specified or limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0059] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A car sunshade retracting device, characterized in that: The invention comprises a crankshaft (1), wherein the crankshaft (1) is an arc-shaped structure, a bushing (2) is sleeved on the end of the crankshaft (1), an elastic member (3) is sleeved on the peripheral side of the crankshaft (1), a flexible member (4) is sleeved on the peripheral side of the crankshaft (1), the flexible member (4) is sleeved on the bushing (2), the flexible member (4) is connected to a curtain (5), and the end of the curtain (5) away from the flexible member (4) is connected to a counterweight rod (6).

2. The automobile sunshade retracting device according to claim 1, characterized in that: The bushing (2) is provided with a slot (7), the shape of which is matched with one end of the elastic member (3), one end of the elastic member (3) is connected to the slot (7), the crankshaft (1) is provided with a rotation-stopping member (8), the other end of the elastic member (3) is connected to the rotation-stopping member (8), and the elastic member (3) is located between the crankshaft (1) and the flexible member (4).

3. The automobile sunshade retracting device according to claim 2, characterized in that: It also comprises a bracket (9), which passes through the bushing (2) and is connected to the end of the crankshaft (1).

4. A vehicle sunshade retracting device as claimed in claim 3, characterized in that: The bushing (2) is provided with an elastic pressing portion (10), and the elastic pressing portion (10) is deformed along a preset direction when subjected to force. The elastic pressing portion (10) is provided with a protruding portion (11), and the protruding portion (11) is sleeved with the flexible member (4).

5. The automobile sunshade retracting device according to claim 4, characterized in that: The flexible member (4) adapts to the curvature of the crankshaft (1).

6. The automobile sunshade retracting device according to claim 5, characterized in that: It also includes a buffer component (12) connected to the counterweight rod (6), and a silencer component (13) connected to the buffer component (12).

7. A vehicle sunshade retracting device as claimed in claim 6, characterized in that: The buffer member (12) comprises an extension plate (1201) fixedly connected to the counterweight rod (6); the extension plate (1201) is fixedly connected to a receiving tube (1202); the receiving tube (1202) is slidably connected to a telescopic rod (1203); one end of the telescopic rod (1203) is fixedly connected to a piston plate (1204); the piston plate (1204) is provided with a through hole (1205); and a first spring (1206) is arranged in the same direction as the telescopic rod (1203).

8. The automobile sunshade retracting device according to claim 7, characterized in that: One end of the telescopic rod (1203) extends into the accommodating tube (1202) and is fixedly connected to the piston plate (1204); the piston plate (1204) is slidably connected to the inner wall of the accommodating tube (1202); one end of the first spring (1206) is connected to the accommodating tube (1202); and the other end of the first spring (1206) is connected to the piston plate (1204).

9. A vehicle sunshade retracting device as claimed in claim 8, characterized in that: The silencer (13) comprises a support frame (1301) rotatably connected to the telescopic rod (1203); the support frame (1301) is rotatably connected to a roller (1302); the extension plate (1201) is fixedly connected to an auxiliary frame (1303); the auxiliary frame (1303) is provided with a guide groove (1304); the guide groove (1304) is slidably connected to an auxiliary rod (1305); the auxiliary rod (1305) is fixedly connected to the support frame (1301); the support frame (1301) and the auxiliary frame (1303) are connected to a second spring (1306); and the roller (1302) is matched with a guide track (1307).

10. The automobile sunshade retracting device according to claim 9, characterized in that: The guide groove (1304) is an arc-shaped groove, and the guide track (1307) consists of an inclined runway, a straight runway and an arc-shaped runway.

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