Sunshade curtain for vehicle

Abstract

The utility model provides a sunshade curtain for a vehicle, which belongs to the technical field of automobile parts and comprises a curtain frame, an avoiding hole penetrating into the curtain frame is formed in the outer wall of the curtain frame, and a rotatable reel pipe is arranged in the curtain frame; the swing block is rotatably connected with the curtain frame, and the swing block is provided with a pressing part; the reel pipe is in linkage connection with the swing block through the linkage mechanism; the stroke position of the swing block comprises a pressing position, the stroke position of the reel pipe comprises an unfolding position, when the reel pipe is located at the unfolding position, the swing block is located at the pressing position through the linkage mechanism, and when the swing block is located at the pressing position, the pressing part extends into the avoiding hole and abuts against the reel pipe; the sunshade has the advantages that when the sunshade is in an open state, the swing block can move to the pressing position and abut against the reel pipe through the pressing part, so that the possibility that the reel pipe generates vibration and abnormal sound is greatly reduced, and the pressing part does not make contact with the reel pipe in the unfolding or retracting process of the sunshade.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and relates to a sunshade curtain for a vehicle. Background Art

[0002] Some mid- to high-end cars are usually equipped with sunshades to provide passengers with a comfortable riding environment, reduce visual interference and heat accumulation caused by direct sunlight, and ensure privacy in the car. Since the roller tube of the sunshade is usually small in diameter and long in length, that is, the deflection of the roller tube is large, when the vehicle encounters bumpy road conditions or the door is opened and closed frequently during driving, it is easy to collide with the inner wall of the curtain frame due to vibration, resulting in abnormal noise, affecting the quietness of the car, and also reducing the user's overall perception of the vehicle quality.

[0003] Based on the above situation, if a pressing block is used to continuously press the middle of the roller tube, the vibration and abnormal noise of the roller tube can be effectively suppressed. However, this method also has certain disadvantages. If the pressing block is used to directly contact and suppress its vibration, the roller tube may leave indentations or cause unnecessary wear on the sunshade fabric during rotation, thereby affecting the appearance and functionality of the curtain fabric, and also causing greater resistance when the roller tube rotates.

[0004] Because the sunshade has an open state and a retracted state, when the curtain is completely wound on the roller tube, it is in the retracted state, at which time the roller tube has a small deflection and is not easy to vibrate; and when the curtain is completely pulled out of the roller tube, it is in the open state, at which time the roller tube has a large deflection and is prone to vibration and abnormal noise. However, there is currently a lack of a design that can actively suppress the rotation of the roller tube when the curtain is unfolded, causing the existing sunshade roller tube to easily vibrate and make abnormal noise when it is fully opened. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to provide a sunshade for a vehicle.

[0006] The purpose of the utility model can be achieved through the following technical solutions: A sunshade for a vehicle, comprising:

[0007] A curtain frame, wherein the outer wall of the curtain frame is provided with an avoidance hole penetrating into the interior of the curtain frame, and a rotatable rolling tube is arranged inside the curtain frame;

[0008] A swing block, the swing block is rotatably connected to the curtain frame, and the swing block has a pressing portion;

[0009] A linkage mechanism, through which the reel is linked to the swing block;

[0010] The stroke position of the swing block includes a pressing position, and the stroke position of the winding tube includes an unfolding position. When the winding tube is in the unfolding position, the swing block is placed in the pressing position through the linkage mechanism. When the swing block is in the pressing position, the pressing portion extends into the avoidance hole and presses against the winding tube.

[0011] Preferably, the linkage mechanism includes a slider and a nut block, the side cover of the curtain frame is provided with a base rod, the slider is slidably connected to the base rod, the nut block is connected to the roller tube and the roller tube can drive the nut block to rotate, the slider has an external threaded portion, the external threaded portion is connected to the nut block, and the nut block drives the slider to move axially along the base rod when it rotates, the stroke position of the slider is determined by the stroke position of the roller tube, the slider is linkage-connected to the swing block and the slider moves the swing block to the pressing position when the roller tube is in the unfolded position.

[0012] Preferably, the base rod, the slider and the nut block are all located in the rolling tube, the slider also has a special-shaped hole, the cross-section of the base rod is consistent with the shape of the special-shaped hole, the base rod is inserted into the special-shaped hole and the slider is circumferentially fixed to the base rod.

[0013] Preferably, the linkage mechanism further includes a cable, and the slider is linked to the swing block via the cable, and when the roller is in the unfolded position, the slider causes the swing block to move to the pressing position via the cable.

[0014] Preferably, the linkage mechanism also includes a trigger block and a first elastic member, the trigger block is rotatably connected to the curtain frame, one end of the pull cable is fixedly connected to the slider and the other end is fixedly connected to the trigger block, the travel position of the trigger block includes a trigger position, the first elastic member is mounted on the rotating shaft of the trigger block, the first elastic member applies a torque to the trigger block to rotate it toward the trigger position, the position of the trigger block is determined by the position of the slider, and when the trigger block is in the trigger position, the trigger block is connected in abutment with the swing block and constrained to the pressing position under the action of the torque of the first elastic member.

[0015] Preferably, the slider can tighten or loosen the cable when it moves, and when the slider tightens the cable, the trigger block moves away from the trigger position, and when the slider loosens the cable, the trigger block rotates toward the trigger position under the action of the first elastic member.

[0016] Preferably, the swing block further has a force-bearing portion, and the force-bearing portion and the pressing portion are respectively located on both sides of the rotation center of the swing block, and when the trigger block is located at the trigger position, it presses against the force-bearing portion to keep the swing block at the pressing position.

[0017] Preferably, a second elastic member is provided on the rotating shaft of the swing block, and the second elastic member applies a torsion force to the swing block to move it away from the pressing position, and the torsion force of the first elastic member is greater than the torsion force of the second elastic member.

[0018] Preferably, the stroke position of the trigger block also includes a starting position and a contact position, and the starting position and the contact position are an idle stroke interval, and the contact position and the trigger position are a driving stroke interval, the trigger block is not in contact with the force-bearing part in the idle stroke interval, and the trigger block is in contact with the force-bearing part in the driving stroke interval.

[0019] Preferably, it further comprises a fixed wheel and an adjusting wheel, wherein the fixed wheel is fixedly connected to the curtain frame, the adjusting wheel is movably connected to the curtain frame, and the pull cable is connected to the trigger block after passing through the fixed wheel and the adjusting wheel.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. When the sunshade is in the open state, the swing block can move to the pressing position and press against the roller tube through the pressing part, thereby greatly reducing the possibility of vibration and abnormal noise of the roller tube, and the pressing part does not contact the roller tube during the expansion or retraction of the sunshade.

[0022] 2. This embodiment cleverly converts the rotation of the roller tube into the linear movement of the slider through the threaded cooperation between the slider and the nut block, and through the swing block linked to the slider, ensures that when the sunshade is unfolded, the swing block can be accurately in place to effectively suppress the roller tube, thereby significantly improving the quietness performance and ride comfort of the sunshade system.

[0023] 3. One end of the cable is firmly connected to the slider. As the slider moves, the cable will be tightened or loosened accordingly. When the roller tube is unfolded, the direction and force of the slider's movement will be converted into tension through the cable. This tension can directly or indirectly cause the swing block to rotate around its axis until its pressing part is accurately embedded in the avoidance hole on the curtain frame and exerts a resisting force on the roller tube, thereby eliminating the vibration and abnormal noise problems that may be caused by excessive deflection of the roller tube when the sunshade is unfolded.

[0024] 4 Only when the sunshade is fully extended, the trigger block will be accurately in place under the drive of the first elastic member, ensuring that the swing block effectively suppresses the roller tube. At the same time, it ensures that when the sunshade is retracted or half-extended, the swing block will not press against the roller tube prematurely or unnecessarily, thereby enhancing the stability and quietness of the sunshade during operation.

[0025] 5. During the design, the torque of the first elastic member is deliberately set to be greater than the torque of the second elastic member. In this way, when the first elastic member takes effect, its torque is sufficient to overcome the force of the second elastic member, so that the swing block can smoothly reach and remain in the position of pressing the reel, thereby effectively suppressing the vibration and abnormal noise of the reel.

[0026] 6. The above design shortens the total stroke of the swing block by the idle stroke range of the trigger block. Such a design significantly reduces the space required for the swing block to occupy inside the curtain frame, because it only needs a small swing amplitude to effectively suppress the roller tube, thereby improving space utilization and the compactness of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the sunshade curtain of the utility model in the retracted state.

[0028] Figure 2 It is a schematic diagram of the sunshade curtain of the utility model in the unfolded state.

[0029] Figure 3 This is a structural exploded view of the sunshade curtain of the present utility model.

[0030] Figure 4 It is a structural schematic diagram of the linkage mechanism of the utility model.

[0031] Figure 5 It is a schematic diagram of the connection relationship between the fixed wheel, the adjusting wheel and the cable of the utility model.

[0032] Figure 6 It is a schematic diagram of the trigger block of the utility model when it is located at the trigger position.

[0033] Figure 7 It is a schematic diagram of the trigger block of the utility model when it is located at the starting position.

[0034] In the figure, 100, curtain frame; 110, avoidance hole; 120, base rod; 130, fixed wheel; 140, adjusting wheel; 200, winding tube; 300, swing block; 310, pressing part; 320, force-bearing part; 330, second elastic member; 400, sliding block; 410, external threaded part; 420, special-shaped hole; 500, nut block; 600, cable; 700, trigger block; 710, first elastic member. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0036] like Figure 1-7 As shown, a sunshade for a vehicle comprises: a curtain frame 100, wherein the outer wall of the curtain frame 100 is provided with an avoidance hole 110 penetrating into the interior of the curtain frame 100, and a rotatable roller tube 200 is arranged inside the curtain frame 100; a swing block 300, wherein the swing block 300 is rotatably connected to the curtain frame 100, and the swing block 300 has a pressing portion 310; a linkage mechanism, wherein the roller tube 200 is linked to the swing block 300 through the linkage mechanism; the stroke position of the swing block 300 includes a pressing position, and the stroke position of the roller tube 200 includes an unfolding position, and when the roller tube 200 is in the unfolding position, the swing block 300 is in the pressing position through the linkage mechanism, and when the swing block 300 is in the pressing position, the pressing portion 310 extends into the avoidance hole 110 and presses against the roller tube 200.

[0037] The roller tube 200 can store or release the curtain when it rotates. The outer wall of the curtain frame 100 is provided with an avoidance hole 110. The design of this hole is to cooperate with the work of the swing block 300. The swing block 300 is a movable component and the swing block 300 has a pressing portion 310 for pressing the roller tube 200. When the sunshade is in an open state, that is, the roller tube 200 is in the unfolded position, the linkage mechanism prompts the swing block 300 to move to the pressing position. At this time, the pressing portion 310 of the swing block 300 will just pass through the avoidance hole 110 on the curtain frame 100, and then resist the roller tube 200, thereby stabilizing the roller tube 200 and preventing it from vibrating.

[0038] The linkage mechanism can adjust the position of the swing block 300 according to the stroke position of the roller tube 200. When the roller tube 200 is not in the unfolded position, the pressing portion 310 on the swing block 300 does not contact the roller tube 200, avoiding unnecessary contact of the sunshade during the extension and retraction process.

[0039] When the sunshade is in the open state, the swing block 300 can move to the pressing position and press against the roller tube 200 through the pressing part 310, thereby greatly reducing the possibility of vibration and abnormal noise of the roller tube 200, and the pressing part 310 does not contact the roller tube 200 during the unfolding or retracting process of the sunshade.

[0040] like Figure 1-4As shown, on the basis of the above embodiment, the linkage mechanism includes a slider 400 and a nut block 500, the side cover of the curtain frame 100 is provided with a base rod 120, the slider 400 is slidably connected to the base rod 120, the nut block 500 is connected to the roller tube 200 and the roller tube 200 can drive the nut block 500 to rotate, the slider 400 has an external threaded portion 410, the external threaded portion 410 is connected to the nut block 500, and when the nut block 500 rotates, the slider 400 is driven to move along the axial direction of the base rod 120, the stroke position of the slider 400 is determined by the stroke position of the roller tube 200, the slider 400 is linked to the swing block 300 and the slider 400 moves the swing block 300 to the pressing position when the roller tube 200 is in the unfolded position.

[0041] The side cover of the curtain frame 100 has a base rod 120 extending inward and inserted into the roller tube 200. The base rod 120 serves as a guide support for the sliding movement of the slider 400. The slider 400 is designed to move smoothly forward and backward along the base rod 120, and the freedom of movement of the slider 400 is limited to the axial direction of the base rod 120. In the linkage mechanism, the rotation amount of the roller tube 200 is converted into the displacement amount of the slider 400 through the cooperation of the slider 400 and the nut block 500. Specifically, the slider 400 is provided with an external thread portion 410, and this external thread portion 410 matches the internal thread of the nut block 500. Therefore, when the roller tube 200 rotates, the nut block 500 also rotates. Due to the interaction between the threads, the nut block 500 drives the slider 400 to move linearly along the axial direction of the base rod 120.

[0042] The stroke position of the slider 400 strictly depends on the stroke position of the roller tube 200. When the roller tube 200 rotates, the nut block 500 inside it rotates, so that the slider 400 slides on the base rod 120. When the sunshade is in the retracted state, the curtain is rolled on the roller tube 200. At this time, the relative thickness of the roller tube 200 increases, so the deflection is small; on the contrary, when the sunshade is fully unfolded, the curtain on the roller tube 200 is almost fully unfolded, and the deflection of the roller tube 200 is large. At this time, the slider 400 moves to the corresponding position and puts the swing block 300 in the pressing position.

[0043] This embodiment cleverly converts the rotation of the roller tube 200 into the linear movement of the slider 400 through the threaded cooperation between the slider 400 and the nut block 500, and through the swing block 300 linked with the slider 400, ensures that when the sunshade is unfolded, the swing block 300 can be accurately in place to effectively suppress the roller tube 200, thereby significantly improving the quietness performance and ride comfort of the sunshade system.

[0044] Based on the above embodiment, the base rod 120, the slider 400 and the nut block 500 are all located in the rolling tube 200, and the slider 400 also has a special-shaped hole 420. The cross-section of the base rod 120 is consistent with the shape of the special-shaped hole 420. The base rod 120 is inserted into the special-shaped hole 420 and the slider 400 and the base rod 120 are circumferentially fixed.

[0045] The three key components, the base rod 120, the slider 400 and the nut block 500, are cleverly integrated in the space inside the roller tube 200, making this part of the structure more compact and concealed. The slider 400 and the base rod 120 are matched through the shaft hole structure, and the special-shaped hole 420 is a polygonal inner hole. The base rod 120 is inserted into the special-shaped hole 420, which means that the slider 400 can only move along the axial direction of the base rod 120 without any circumferential rotation, ensuring the directional stability of the slider 400 during the entire movement process.

[0046] On the basis of the above embodiment, the linkage mechanism further includes a cable 600, and the slider 400 is linked to the swing block 300 through the cable 600. When the roller tube 200 is in the unfolded position, the slider 400 moves the swing block 300 to the pressed position through the cable 600.

[0047] The cable 600 serves as a transmission medium between the slider 400 and the swing block 300 to realize the linkage between the slider 400 and the swing block 300. One end of the cable 600 is firmly connected to the slider 400, and as the slider 400 moves, the cable 600 will be tightened or loosened accordingly. When the roller tube 200 is unfolded, the direction and force of the movement of the slider 400 will be converted into a pulling force through the cable 600, and the pulling force can directly or indirectly cause the swing block 300 to rotate around its axis until its pressing part 310 is accurately embedded in the avoidance hole 110 on the curtain frame 100 and generates a resisting force on the roller tube 200, thereby eliminating the vibration and abnormal noise problems that may be caused by excessive deflection of the roller tube 200 when the sunshade is unfolded.

[0048] Embodiment 1: One end of the cable 600 is connected to the slider 400 and the other end is connected to the swing block 300. The slider 400 directly pulls the swing block 300 to move through the cable 600. This embodiment belongs to the cable 600 directly controlling the swing block 300.

[0049] Embodiment 2: One end of the cable 600 is connected to the slider 400 and the other end is connected to the trigger block 700 . The trigger block 700 further controls the movement of the swing block 300 . This embodiment is that the cable 600 indirectly controls the swing block 300 .

[0050] like Figure 1-7As shown, in the second embodiment, the linkage mechanism also includes a trigger block 700 and a first elastic member 710. The trigger block 700 is rotatably connected to the curtain frame 100. One end of the cable 600 is fixedly connected to the slider 400 and the other end is fixedly connected to the trigger block 700. The travel position of the trigger block 700 includes a trigger position. The first elastic member 710 is installed on the rotating shaft of the trigger block 700. The first elastic member 710 applies a torque to the trigger block 700 to rotate it toward the trigger position. The position of the trigger block 700 is determined by the position of the slider 400. When the trigger block 700 is in the trigger position, the trigger block 700 is connected to the swing block 300 and the swing block 300 is constrained in the pressing position under the action of the torque of the first elastic member 710.

[0051] The cable 600 indirectly controls the movement of the swing block 300 through the trigger block 700, and the first elastic member 710 can make the trigger block 700 have a torque to rotate toward the trigger position. When the curtain is in the retracted state, the slider 400 tightens the cable 600, and the trigger block 700 overcomes the torque of the first elastic member 710 under the tension of the cable 600 and remains in the starting position. At this time, the pressing part 310 of the swing block 300 does not contact the roller 200. When the curtain is in the process of unfolding, the slider 400 moves and gradually loosens the cable 600, and the trigger block 700 gradually rotates toward the trigger position under the action of the first elastic member 710. During the whole process, the stroke position of the trigger block 700 is determined by the stroke position of the slider 400. When the curtain is fully unfolded, the trigger block 700 reaches the trigger position. At this time, the trigger block 700 firmly presses against the force-bearing part 320 of the swing block 300 under the torque of the first elastic member 710, so that the swing block 300 remains in the pressing position.

[0052] This design achieves dynamic response. Only when the sunshade is fully extended, the trigger block 700 will be accurately in place under the drive of the first elastic member 710, ensuring that the swing block 300 effectively suppresses the roller tube 200. At the same time, it ensures that when the sunshade is retracted or half-extended, the swing block 300 will not press against the roller tube 200 prematurely or unnecessarily, thereby enhancing the stability and quietness of the sunshade during operation.

[0053] Based on the above embodiment, the slider 400 can tighten or loosen the cable 600 when it moves. When the slider 400 tightens the cable 600, the trigger block 700 moves away from the trigger position. When the slider 400 loosens the cable 600, the trigger block 700 rotates toward the trigger position under the action of the first elastic member 710.

[0054] It should be pointed out here that the slider 400 is actually moving closer to or away from the side cover of the curtain frame 100 when moving, so tightening the cable 600 means that the slider 400 pulls one end of the cable 600 deep into the roller tube 200, which can also be understood as one end of the cable 600 moving toward the roller tube 200, at which time the trigger block 700 overcomes the torque of the first elastic member 710 and moves away from the trigger position; loosening the cable 600 means that one end of the cable 600 gradually leaves the interior of the roller tube 200, which can also be understood as one end of the cable 600 moving toward the outside of the roller tube 200, at which time the trigger block 700 moves toward the trigger position under the action of the torque of the first elastic member 710.

[0055] On the basis of the above embodiment, the swing block 300 further has a force-bearing portion 320, and the force-bearing portion 320 and the pressing portion 310 are respectively located on both sides of the rotation center of the swing block 300, and when the trigger block 700 is in the trigger position, it abuts against the force-bearing portion 320 to keep the swing block 300 in the pressing position. The swing block 300 and the trigger block 700 are actually a lever structure.

[0056] Based on the above embodiment, a second elastic member 330 is provided on the rotating shaft of the swing block 300 , and the second elastic member 330 applies a torque to the swing block 300 to move it away from the pressing position, and the torque of the first elastic member 710 is greater than the torque of the second elastic member 330 .

[0057] When the trigger block 700 is not in contact with the force-bearing part 320, the swing block 300 can be moved away from the pressing position under the action of the second elastic member 330, ensuring that the pressing part 310 of the swing block 300 is not in contact with the roller 200. When the trigger block 700 is in the trigger position, the swing block 300 overcomes the torsion of the second elastic member 330 and is in the pressing position. Once the trigger block 700 leaves the trigger position, the swing block 300 can quickly leave the pressing position.

[0058] It should be pointed out here that, during the design, the torque of the first elastic member 710 is deliberately set to be greater than the torque of the second elastic member 330, so that when the first elastic member 710 takes effect, its torque is sufficient to overcome the force of the second elastic member 330, so that the swing block 300 can smoothly reach and remain in the position of pressing the roller tube 200, thereby effectively suppressing the vibration and abnormal noise of the roller tube 200.

[0059] On the basis of the above-mentioned implementation mode, the stroke position of the trigger block 700 also includes a starting position and a contact position, and the starting position and the contact position are an idling stroke interval, and the contact position and the trigger position are a driving stroke interval. The trigger block 700 does not contact the force-bearing part 320 in the idling stroke interval, and the trigger block 700 contacts the force-bearing part 320 in the driving stroke interval.

[0060] It should be pointed out here that if the design of the cable 600 directly pulling the swing block 300 in Example 1 is adopted, although the effect of suppressing the vibration and abnormal noise of the roller tube 200 can also be achieved, in the actual structure, the swing block 300 is installed in the middle of the curtain frame 100, the length of the cable 600 is very long, and the movement of the cable 600 during the unfolding of the curtain is large, resulting in a large rotation amplitude of the swing block 300 directly connected thereto, so the space occupied by the swing block 300 is very large, resulting in a large installation space required for the curtain frame 100.

[0061] In this embodiment, the cable 600 is used to control the movement of the trigger block 700. In the process of the curtain from the retracted state to the unfolded state, most of the rotation stroke of the roller tube 200 is to control the action of the trigger block 700, that is, most of the stroke of the roller tube 200 is just to make the trigger block 700 rotate in the idle stroke range, and the swing block 300 remains motionless under the action of the second elastic member 330. Only when the roller tube 200 rotates in the last small stroke, the trigger block 700 reaches the driving stroke range and contacts the force-bearing part 320 until the trigger block 700 reaches the trigger position, and the swing block 300 reaches the pressing position. This means that the swing block 300 only needs to swing a very small stroke to reach the pressing position, so the swing amplitude (total stroke) of the swing block 300 is small, which greatly reduces the space occupied by the swing block 300, making the curtain frame 100 more compact.

[0062] The above design shortens the total stroke of the swing block 300 by the idle stroke interval of the trigger block 700. During the entire process of the curtain fabric transitioning from the retracted state to the unfolded state, most of the rotation of the roller tube 200 does not immediately cause the actual movement of the swing block 300, but is mainly used to drive the trigger block 700 to rotate without actual function in the idle stroke interval until the roller tube 200 rotates to the preset stroke position, and the trigger block 700 enters the driving stroke interval. At this time, the trigger block 700 contacts the force-bearing part 320 of the swing block 300, forcing the swing block 300 to rotate quickly and accurately to the pressing position, and use the pressing part 310 to press against the roller tube 200 to suppress its vibration and noise. Such a design significantly reduces the space required for the swing block 300 to occupy inside the curtain frame 100, because it only needs a small swing amplitude to achieve effective pressing of the roller tube 200, thereby improving space utilization and the compactness of the overall structure.

[0063] like Figure 4-5 As shown, on the basis of the above embodiment, it also includes a fixed wheel 130 and an adjusting wheel 140, the fixed wheel 130 is fixedly connected to the curtain frame 100, the adjusting wheel 140 is movably connected to the curtain frame 100, and the cable 600 is connected to the trigger block 700 after passing through the fixed wheel 130 and the adjusting wheel 140.

[0064] The cable 600 can be adjusted by the fixed wheel 130 and the adjusting wheel 140. During actual installation, the two ends of the cable 600 are first fixed on the slider 400 and the trigger block 700 respectively, and the cable 600 passes through the fixed wheel 130 and the adjusting wheel 140, and then the cable 600 is tensioned by the adjusting wheel 140. The operator can adjust the pre-tensioning state of the cable 600 by moving the position of the adjusting wheel 140 to ensure that during the opening and closing process of the sunshade, the cable 600 can correctly transmit the movement information of the slider 400 to the trigger block 700 and maintain appropriate tension to ensure the sensitive response and accurate execution of the linkage mechanism.

[0065] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0066] In addition, in the present invention, the descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0067] In the present utility model, unless otherwise clearly stipulated and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited.

[0068] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A sunshade for a vehicle, characterized in that: include: A curtain frame (100), wherein an outer wall of the curtain frame (100) is provided with an avoidance hole (110) penetrating into the interior of the curtain frame (100), and a rotatable roller tube (200) is arranged inside the curtain frame (100); A swing block (300), the swing block (300) being rotatably connected to the curtain frame (100), the swing block (300) having a pressing portion (310); A linkage mechanism, through which the coiled tube (200) is linked to the swing block (300); The travel position of the swing block (300) includes a pressing position, and the travel position of the roller tube (200) includes an unfolding position. When the roller tube (200) is in the unfolding position, the swing block (300) is placed in the pressing position through the linkage mechanism. When the swing block (300) is in the pressing position, the pressing portion (310) extends into the avoidance hole (110) and presses against the roller tube (200).

2. A sunshade for a vehicle according to claim 1, characterized in that: The linkage mechanism comprises a slider (400) and a nut block (500); a side cover of the curtain frame (100) is provided with a base rod (120); the slider (400) is slidably connected to the base rod (120); the nut block (500) is connected to the roller tube (200) and the roller tube (200) can drive the nut block (500) to rotate; the slider (400) has an external threaded portion (410) and the external threaded portion (410) is connected to the roller tube (200). The nut block (500) is connected to the base rod (120), and when the nut block (500) rotates, it drives the slider (400) to move along the axial direction of the base rod (120), and the stroke position of the slider (400) is determined by the stroke position of the rolling tube (200). The slider (400) is linked to the swing block (300) and when the rolling tube (200) is in the unfolded position, the slider (400) causes the swing block (300) to move to the pressing position.

3. A sunshade for a vehicle as claimed in claim 2, characterized in that: The base rod (120), the slider (400) and the nut block (500) are all located inside the rolling tube (200); the slider (400) also has a special-shaped hole (420); the cross section of the base rod (120) is consistent with the shape of the special-shaped hole (420); the base rod (120) is inserted into the special-shaped hole (420) and the slider (400) is circumferentially fixed to the base rod (120).

4. A sunshade for a vehicle as claimed in claim 2, characterized in that: The linkage mechanism also includes a cable (600), and the slider (400) is linked to the swing block (300) via the cable (600). When the roller tube (200) is in the unfolded position, the slider (400) causes the swing block (300) to move to the pressing position via the cable (600).

5. A sunshade for a vehicle as claimed in claim 4, characterized in that: The linkage mechanism further comprises a trigger block (700) and a first elastic member (710), wherein the trigger block (700) is rotatably connected to the curtain frame (100), one end of the pull cable (600) is fixedly connected to the slider (400) and the other end is fixedly connected to the trigger block (700), the travel position of the trigger block (700) comprises a trigger position, the first elastic member (710) is mounted on the rotating shaft of the trigger block (700), the first elastic member (710) applies a torque to the trigger block (700) to rotate it toward the trigger position, the position of the trigger block (700) is determined by the position of the slider (400), when the trigger block (700) is in the trigger position, the trigger block (700) is in contact with the swing block (300) and the swing block (300) is constrained at the pressing position by the torque of the first elastic member (710).

6. A sunshade for a vehicle as claimed in claim 5, characterized in that: The slider (400) can tighten or loosen the cable (600) when it moves; when the slider (400) tightens the cable (600), the trigger block (700) moves away from the trigger position; when the slider (400) loosens the cable (600), the trigger block (700) rotates toward the trigger position under the action of the first elastic member (710).

7. A sunshade for a vehicle as claimed in claim 6, characterized in that: The swing block (300) further comprises a force-bearing portion (320), wherein the force-bearing portion (320) and the pressing portion (310) are respectively located on both sides of the rotation center of the swing block (300), and when the trigger block (700) is located at the trigger position, it abuts against the force-bearing portion (320) to keep the swing block (300) at the pressing position.

8. A sunshade for a vehicle as claimed in claim 5, characterized in that: A second elastic member (330) is arranged on the rotating shaft of the swing block (300), and the second elastic member (330) applies a torsion force to the swing block (300) to move it away from the pressing position, and the torsion force of the first elastic member (710) is greater than the torsion force of the second elastic member (330).

9. A sunshade for a vehicle as claimed in claim 7, characterized in that: The travel position of the trigger block (700) also includes a starting position and a contact position, and the starting position and the contact position are in an idle travel interval, and the contact position and the trigger position are in a driving travel interval. The trigger block (700) is not in contact with the force-bearing portion (320) in the idle travel interval, and the trigger block (700) is in contact with the force-bearing portion (320) in the driving travel interval.

10. A sunshade for a vehicle as claimed in claim 5, characterized in that: It also includes a fixed wheel (130) and an adjusting wheel (140), wherein the fixed wheel (130) is fixedly connected to the curtain frame (100), and the adjusting wheel (140) is movably connected to the curtain frame (100), and the pull cable (600) is connected to the trigger block (700) after passing through the fixed wheel (130) and the adjusting wheel (140).

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