Vehicle shielding curtain with hovering function and vehicle

Abstract

The invention provides a vehicle shielding curtain with a hovering function and a vehicle, and belongs to the technical field of vehicle parts, and the vehicle shielding curtain comprises a sliding groove support provided with a rack; gears are arranged on the two sides of the sliding plate, and the two gears are engaged with the racks of the two sliding groove supports correspondingly; the gear forms a one-way rotating structure through a one-way locking piece. The device has the beneficial effects that the one-way locking piece can be coupled or decoupled with the gear, and when the one-way locking piece and the gear are coupled, the gear forms a one-way rotating structure, so that the sliding plate can only slide in the stretching direction; when the one-way locking piece and the gear are decoupled, the sliding plate can slide in the stretching direction or the retracting direction, and the hovering function of the shielding curtain is achieved through cooperation of the one-way rotating gear and the rack; the installation position of the shielding curtain and the stretching direction of the curtain cloth are not limited, so that the shielding curtain has extremely high universality and flexibility.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle parts and relates to a vehicle sunshade curtain with a hovering function and a vehicle. Background Art

[0002] With the rapid development of the automotive industry, consumers are increasingly demanding sunshades and privacy protection inside their cars. Car sunshades can be used as sunshades to shade windows or as shades to protect objects in the trunk.

[0003] As an important accessory for vehicle interior decoration, automotive window shades (sun curtains or curtains for objects) are constantly innovating in design and function. Traditional window shades usually adopt an automatic reeling mechanism, and users cannot freely adjust the extension position of the curtain during use, that is, they cannot realize the multi-gear or stepless hovering function of the curtain. For example, in the application of sun curtains, the driver hopes to adjust the degree of expansion of the sun curtain according to the angle of sunlight and personal preference; in the use scenario of trunk curtains, it may be necessary to flexibly adjust the blocking range according to the size of the items placed, and ensure that the curtain can stay firmly in the desired position to achieve the best privacy protection effect.

[0004] Currently, there are some sunshades or curtains with hovering functions, but the structures of such sunshades or curtains are relatively complex, and are limited to specific installation positions and curtain extension and retraction directions to achieve the hovering function. For example, the sunshade is required to be fixed above, and the curtain is pulled downward to achieve the hovering function. Therefore, such curtains have great limitations, which not only reduce the versatility and flexibility of the curtains, but also increase the difficulty of use for users. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to provide a vehicle sunshade curtain with a hovering function and a vehicle.

[0006] The object of the present invention can be achieved through the following technical solutions: A vehicle sunshade curtain with a hovering function, comprising:

[0007] There are two chute brackets, the two chute brackets are arranged in parallel, and the chute brackets are provided with a rack;

[0008] a sliding plate, the sliding plate being located between the two chute brackets, the sliding plate being configured as a slidable structure capable of sliding along the chute brackets in an extension direction or a retraction direction;

[0009] Two sides of the sliding plate are provided with gears, and the two gears are respectively engaged with the two racks of the two slide groove supports; the rotation direction of the gears is set as a first direction when the sliding plate slides in the extension direction, and the rotation direction of the gears is set as a second direction when the sliding plate slides in the retraction direction;

[0010] The gears form a one-way rotation structure through a one-way locking member;

[0011] When the one-way locking member is coupled with the gears, the gears are allowed to rotate in the first direction and are limited to rotate in the second direction, so as to allow the sliding plate to slide in the extension direction and limit the sliding plate to slide in the retraction direction;

[0012] When the one-way locking member is decoupled with the gears, the gears are allowed to rotate in the first direction and the second direction, so as to allow the sliding plate to slide in the extension direction and the retraction direction.

[0013] Preferably, the curtain frame, the winding pipe, the curtain cloth and the reset driving member are further included, the winding pipe is rotatably installed on the curtain frame, one end of the curtain cloth is connected with the winding pipe, the other end of the curtain cloth is connected with the sliding plate, and the reset driving member is connected with the winding pipe. The reset driving member applies a pulling force to the sliding plate through the winding pipe and the curtain cloth, so that the sliding plate tends to move in the retraction direction.

[0014] Preferably, the sliding plate is provided with a slidable unlocking mechanism, the one-way locking member is connected with the unlocking mechanism or located on the unlocking mechanism, the unlocking mechanism has a locking state and an unlocking state, the one-way locking member is coupled with the gears when the unlocking mechanism is in the locking state, and the one-way locking member is decoupled with the gears when the unlocking mechanism is in the unlocking state.

[0015] Preferably, the unlocking mechanism includes an unlocking block and two control rods, the unlocking block and the two control rods are slidably connected with the sliding plate, the unlocking block is connected with the two control rods in linkage, and the stroke position of the unlocking block determines the stroke positions of the two control rods; the unlocking block drives the two control rods to slide simultaneously when the unlocking block slides, and the sliding directions of the two control rods are opposite; the two control rods are respectively connected with the two one-way locking members, or the two one-way locking members are respectively located on the two control rods.

[0016] Preferably, the unlocking block is provided with two driving inclined surfaces, the control rods are provided with stress inclined surfaces, and the two driving inclined surfaces on the unlocking block are respectively matched with the stress inclined surfaces of the two control rods to form an inclined surface driving structure;

[0017] The stroke position of the unlocking block includes a locking position and an unlocking position; the one-way locking member is coupled with the gear through the control rod when the unlocking block is in the locking position; the one-way locking member is decoupled with the gear through the control rod when the unlocking block is in the unlocking position.

[0018] Preferably, the unlocking mechanism further includes a locking spring, two ends of the locking spring are connected with the unlocking block and the sliding plate respectively, and the locking spring applies an elastic force to the unlocking block to make the unlocking block tend to the locking position.

[0019] Preferably, the sliding plate is provided with a handle hole, and the unlocking block is located in the handle hole.

[0020] Preferably, the one-way locking member is provided as a clamping spring, a side surface of the gear is provided with a brake wheel part coaxial with the gear, an inner diameter of the clamping spring is smaller than an outer diameter of the brake wheel part, the clamping spring is sleeved on the brake wheel part, one end of the clamping spring is fixedly connected with the sliding plate and the other end is fixedly connected with the control rod.

[0021] When the unlocking block is in the locking position, the control rod forces the clamping spring to clamp the brake wheel part, when the gear generates a movement tendency of rotating in the first direction, the clamping spring generates a movement tendency of loosening to allow the gear to rotate in the first direction; when the gear generates a movement tendency of rotating in the second direction, the clamping spring generates a movement tendency of tightening to limit the gear from rotating in the second direction.

[0022] When the unlocking block is in the unlocking position, the control rod forces the clamping spring to loosen the brake wheel part, and the gear is allowed to rotate in the first direction or the second direction.

[0023] Preferably, the one-way locking member is provided as a beveled end head at an end of the control rod, and the beveled end head has a locking bevel.

[0024] When the unlocking block is in the locking position, the locking bevel is in abutting connection with a tooth surface of the gear and limits the gear from rotating in the second direction.

[0025] When the unlocking block is in the unlocking position, the locking bevel is separated from the gear, and the gear is allowed to rotate in the first direction or the second direction.

[0026] A vehicle includes the vehicle shielding curtain with the hovering function, and further includes a vehicle body, the vehicle shielding curtain is arranged at a window of the vehicle body and / or in a trunk of the vehicle body.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] 1. The one-way locking member can be coupled or decoupled with the gear, and when coupled, the gear forms a one-way rotation structure, so that the sliding plate can only slide in the extension direction; when the one-way locking member is decoupled with the gear, the sliding plate can slide in the extension direction or the retraction direction. Since the hovering function of the shielding curtain is realized by the cooperation of the one-way rotating gear and the rack, the installation position of the shielding curtain and the extension direction of the curtain cloth are not limited, so that the shielding curtain has strong versatility and flexibility.

[0029] 2. The hovering function is defined based on the rotation direction of the gear, rather than relying on spatial orientation or gravity. Therefore, the shielding curtain can be installed on the vehicle window as a sunshade curtain, or installed on the vehicle trunk as a shielding curtain, and the angle and the up-down position (such as inverted installation) will not affect the hovering function.

[0030] 3. The reset driving member not only drives the curtain cloth to be wound, but also applies a pulling force to the sliding plate to make it tend to retract. When the extension direction of the sliding plate is consistent with the direction of gravity, the pulling force is used to balance the gravity to prevent the curtain cloth and the sliding plate from automatically extending due to gravity, thereby maintaining the position stable.

[0031] 4. The working principle of the clamping spring is similar to that of the overrunning clutch, which uses the radial contraction / expansion characteristics of the clamping spring to achieve one-way locking. When the unlocking block is in the locking position, the control rod is in a specific position under the linkage of the unlocking block, which forces the free end of the clamping spring to be twisted to a specific angle. At this twist angle, the clamping spring is in a pre-tightened state, and at this time the inner diameter of the clamping spring is smaller than the outer diameter of the brake wheel part, and the clamping spring tightly clamps on the brake wheel part, generating a large radial clamping force (normal pressure).

[0032] 5. When the unlocking block is in the locking position, the end of the control rod (one-way locking member) is inserted into the gear rotation area, and the tooth surface of the gear abuts against the locking slope. When the gear tends to rotate in the first direction, the tooth surface of the gear exerts a pushing force on the locking slope, thereby causing the control rod to tend to retreat, which means that the end of the control rod (one-way locking member) tends to exit the gear rotation area. When the gear tends to rotate in the second direction, the tooth surface of the gear exerts a pulling force on the locking slope, thereby causing the control rod to tend to laterally extend, which means that the end of the control rod (one-way locking member) tends to further insert into the gear rotation area, causing the gear to be blocked by the one-way locking member and unable to rotate in the second direction. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 Structure schematic diagram of embodiment one of the present application.

[0034] Figure 2 Figure 1 is a schematic diagram of the connection relationship of the gear, the clamping spring and the control rod in the first embodiment of the present application.

[0035] Figure 3 Figure 2 is a schematic diagram of the structure of the unlocking mechanism in the first embodiment of the present application.

[0036] Figure 4 Figure 3 is an exploded view of the sliding plate in the first embodiment of the present application.

[0037] Figure 5 Figure 4 is a schematic diagram of the gear in the second embodiment of the present application when rotating in a first direction.

[0038] Figure 6 Figure 5 is a schematic diagram of the gear in the second embodiment of the present application when rotating in a second direction.

[0039] Figure 7 Figure 6 is an exploded view of the unlocking mechanism of the present application.

[0040] In the figure, 100 is a sliding groove support; 110 is a rack; 200 is a sliding plate; 210 is a handle hole; 300 is a gear; 310 is a brake wheel part; 400 is an unlocking block; 410 is a driving slope; 420 is a locking spring; 500 is a control rod; 510 is a force slope; 600 is a clamping spring; 700 is a slope end; 710 is a locking slope; 800 is a curtain frame; 810 is a tube; and 820 is a curtain fabric. DETAILED DESCRIPTION

[0041] The following is a specific embodiment of the present application and further describes the technical solution of the present application in conjunction with the accompanying drawings, but the present application is not limited to these embodiments.

[0042] As shown in Figure 1, a vehicle shielding curtain with hovering function comprises: Figures 1 to 7

[0043] The sliding groove support 100 is provided with a rack 110.

[0044] The sliding plate 200 is located between the two sliding groove supports 100 and is provided as a slidable structure capable of sliding in the extension direction or the retraction direction of the sliding groove support 100.

[0045] The two sides of the sliding plate 200 are provided with gears 300, and the two gears 300 are respectively engaged with the racks 110 of the two sliding groove supports 100. When the sliding plate 200 slides in the extension direction, the rotation direction of the gear 300 is set as a first direction, and when the sliding plate 200 slides in the retraction direction, the rotation direction of the gear 300 is set as a second direction. ​

[0046] The gear 300 forms a one-way rotation structure through a one-way locking member;

[0047] When the one-way locking member is coupled with the gear 300, the gear 300 is allowed to rotate in the first direction and is restricted to rotate in the second direction, so as to allow the sliding plate 200 to slide in the extension direction and restrict the sliding plate 200 to slide in the retraction direction;

[0048] When the one-way locking member is decoupled from the gear 300, the gear 300 is allowed to rotate in the first direction and the second direction, so as to allow the sliding plate 200 to slide in the extension direction and the retraction direction.

[0049] The present application provides a shielding curtain with a hovering positioning function realized by a one-way locking mechanism. The core principle is to realize the position fixation or free movement of the sliding plate 200 by controlling the rotation freedom of the gear 300.

[0050] The two sliding groove supports 100 form a guide rail structure, and the sliding plate 200 is actually a handle plate of the curtain fabric 820, i.e., a hard part at the end of the curtain fabric 820. The sliding plate 200 is in sliding connection with the two sliding groove supports 100, so as to realize the extension and retraction sliding. When the sliding plate 200 slides, the gear 300 rotates on the rack 110. This means that if the gear 300 is locked and cannot rotate, the sliding plate 200 cannot slide.

[0051] The one-way locking member can be coupled with or decoupled from the gear 300. When the two are coupled (interact), the one-way locking member restricts the gear 300 from rotating in the second direction. Since the gear 300 cannot rotate, the sliding plate 200 cannot slide in the retraction direction (the curtain fabric 820 cannot retract). When the two are decoupled (do not interact), the gear 300 can rotate in the second direction, so that the sliding plate 200 can slide in the retraction direction (the curtain fabric 820 can retract).

[0052] In the normal state, the one-way locking member is coupled with the gear 300. When the user pulls the sliding plate 200 to extend the curtain fabric 820, the gear 300 rotates in the first direction. At this time, the one-way locking member does not hinder the rotation of the gear 300. When the user releases the hand or attempts to retract the curtain fabric 820, the gear 300 attempts to rotate in the second direction. At this time, the one-way locking member locks the gear 300. The gear 300 cannot reverse, and the gear 300 is in meshing with the rack 110, so that the sliding plate 200 is suspended in the current position and cannot retract, and in this state, the user can pull the sliding plate 200 to continue to extend the curtain fabric 820. In the coupled state, the user can freely pull the sliding plate 200 to any position. When the hand is released or subjected to a retraction pushing force, the sliding plate 200 is immediately locked at the position, realizing the hovering function.

[0053] When the one-way locking member is decoupled from the gear 300, the gear 300 is no longer restricted in rotation in either direction, and the user can pull the sliding plate 200 in the extension direction or retract it in the retraction direction. In this state, there is no hovering and fixing function.

[0054] It should be noted that many hovering mechanisms (such as those relying on the weight of the pawl) need to clearly distinguish between "up", "down", or a specific inclination angle. For example, a mechanism that relies solely on gravity to make the pawl engage the ratchet will not be able to fall and engage by its own weight if installed upside down, and the hovering function will be disabled. Or when the inclination angle is too large, the locking force is insufficient.

[0055] The present shading curtain completely breaks free from the restrictions of installation position and extension direction, giving the shading curtain great versatility and flexibility. It defines the hovering function based on the rotation direction of the gear 300, rather than relying on spatial orientation or gravity. Therefore, the present shading curtain can be installed on a vehicle window as a sunshade, or on a vehicle trunk as a cover curtain, and the angle of installation and the up-down position (such as inverted installation) will not affect the hovering function.

[0056] As shown in FIGS. 1-3, the shading curtain includes a sliding plate 200, a gear 300, a one-way locking member 400, and a gear cover 500. The gear 300 is rotatably mounted on the sliding plate 200, and the one-way locking member 400 is coupled to the gear 300. The gear cover 500 is mounted on the sliding plate 200 and covers the gear 300 and the one-way locking member 400. Figure 1 、 Figure 2 As shown in FIGS. 1-3, the shading curtain includes a sliding plate 200, a gear 300, a one-way locking member 400, and a gear cover 500. The gear 300 is rotatably mounted on the sliding plate 200, and the one-way locking member 400 is coupled to the gear 300. The gear cover 500 is mounted on the sliding plate 200 and covers the gear 300 and the one-way locking member 400.

[0057] The curtain frame 800 is the basic installation frame and support structure of the shading curtain, which is usually fixed in the vehicle body. The winding tube 810 is the winding axis and torque transmission core of the curtain fabric 820. The winding tube 810 is rotatably mounted on the two side walls (or end covers) of the curtain frame 800 through bearings or shaft sleeves, ensuring that the winding tube 810 can rotate freely around its own axis. The reset drive is used to provide power (torque) for automatically winding the curtain fabric 820, which is preferably a clockwork spring. When the user pulls the curtain fabric 820 out through the sliding plate 200, the winding tube 810 rotates, simultaneously tightening the reset drive. When the curtain fabric 820 is released, the winding tube 810 winds the curtain fabric 820 under the action of the reset drive, and pulls the sliding plate 200 to slide in the retraction direction.

[0058] The reset drive not only drives the winding of the curtain fabric 820, but also applies a pulling force to the sliding plate 200 to make it tend to retract. When the extension direction of the sliding plate 200 is consistent with the direction of gravity, this pulling force is used to balance the gravity, preventing the curtain fabric 820 and the sliding plate 200 from automatically extending due to their own weight, thereby maintaining their position stable.

[0059] like Figures 1 to 7 As shown, on the basis of the above embodiment, the sliding plate 200 is provided with a slidable unlocking mechanism, the one-way locking member is connected to the unlocking mechanism or the one-way locking member is located on the unlocking mechanism, the unlocking mechanism has a locked state and an unlocked state, when the unlocking mechanism is in the locked state, the one-way locking member is coupled to the gear 300, and when the unlocking mechanism is in the unlocked state, the one-way locking member is decoupled from the gear 300.

[0060] The unlocking mechanism controls the locking and decoupling of the one-way locking element from the gear 300. The user can use this unlocking mechanism to release the suspended position of the curtain 820. In the locked state, the unlocking mechanism allows the one-way locking element to function (i.e., couple with the gear 300). In the unlocked state, the unlocking mechanism forces the one-way locking element to release its function (i.e., decouple from the gear 300). The user switches the unlocking mechanism between the locked and unlocked states by performing specific actions. When the user completes the operation, the unlocking mechanism automatically returns to the locked state under the action of the locking spring 420.

[0061] Based on the above embodiment, the unlocking mechanism includes an unlocking block 400 and two control rods 500. The unlocking block 400 and the two control rods 500 are both slidably connected to the sliding plate 200. The unlocking block 400 is linked to the two control rods 500. The stroke position of the unlocking block 400 determines the stroke position of the two control rods 500. When the unlocking block 400 slides, it drives the two control rods 500 to slide at the same time, and the sliding directions of the two control rods 500 are opposite. The two control rods 500 are respectively connected to two one-way locking members, or the two one-way locking members are respectively located on the two control rods 500.

[0062] The unlocking mechanism is a symmetrical dual-rod linkage unlocking structure that is used to synchronously control the coupling / decoupling state of the two one-way locking members. This design ensures the synchronization, reliability and movement balance of the unlocking of the left and right gears 300 during operation.

[0063] The unlocking block 400 is the part that the user directly operates. It simultaneously drives the two control levers 500 through a specific linkage structure. When the user is not operating, the unlocking mechanism is locked. The unlocking block 400 and the control levers 500 are locked in their positions by the locking spring 420, thereby coupling the one-way locking element to the gear 300.

[0064] When the user applies an operating force to the unlocking block 400, the unlocking block 400 slides from the locked position to the unlocked position, and the unlocking mechanism enters the unlocked state. This process drives the two control rods 500 to move simultaneously through the linkage structure, so that the two one-way locking members are simultaneously and synchronously decoupled from their respective corresponding gears 300.

[0065] Through the operation of the unlocking block 400, the synchronous decoupling of the two one-way locking members is realized, and it is ensured that the curtain fabric 820 will not tilt or jam due to one-sided unlocking.

[0066] On the basis of the above-mentioned embodiments, the unlocking block 400 is provided with two driving slopes 410, and the control rods 500 are provided with force receiving slopes 510, and the two driving slopes 410 on the unlocking block 400 are respectively matched with the force receiving slopes 510 of the two control rods 500 to form a slope driving structure.

[0067] The stroke position of the unlocking block 400 includes a locking position and an unlocking position; when the unlocking block 400 is in the locking position, the one-way locking members are coupled with the gear 300 through the control rods 500; and when the unlocking block 400 is in the unlocking position, the one-way locking members are decoupled from the gear 300 through the control rods 500.

[0068] In the example, the sliding direction of the unlocking block 400 is consistent with the extension direction of the sliding plate 200, and the control rods 500 slide laterally, so the sliding direction of the unlocking block 400 is perpendicular to the sliding direction of the control rods 500, the driving slopes 410 and the force receiving slopes 510 form a slope driving structure, and the slope driving structure can convert the sliding of the unlocking block 400 in the extension direction into the lateral sliding of the control rods 500.

[0069] On the basis of the above-mentioned embodiments, the unlocking mechanism further includes a locking spring 420, both ends of the locking spring 420 are connected with the unlocking block 400 and the sliding plate 200 respectively, and the locking spring 420 applies a spring force to the unlocking block 400 to make it tend to the locking position.

[0070] The unlocking block 400 is in the locking position under the action of the locking spring 420, and in the process of the user applying an operating force to push the unlocking block 400 to slide to the unlocking position, the unlocking block 400 drives the two control rods 500 to slide through the slope driving structure. When the unlocking block 400 reaches the unlocking position, the control rods 500 move to the corresponding positions, and the decoupling of the one-way locking members on both sides from the respective gears 300 enables the gears 300 to rotate freely, and thus the sliding plate 200 can slide freely in the extension direction or the retraction direction.

[0071] On the basis of the above-mentioned embodiments, the sliding plate 200 is provided with a handle hole 210, and the unlocking block 400 is located in the handle hole 210.

[0072] Preferably, the direction in which the unlocking block 400 slides from the locking position to the unlocking position is consistent with the retraction direction.

[0073] The core purpose of integrating the unlocking block 400 in the handle hole 210 and setting its sliding direction as the retracting direction is to avoid the user triggering the unlocking when unfolding the curtain fabric 820 as much as possible. The handle hole 210 is an area that the user must contact when operating the sliding plate 200. When unfolding the curtain fabric 820, the palm can extend into the handle hole 210 to exert a pulling force on the sliding plate 200. Since the unlocking block 400 needs to be pressed in the retracting direction to move to the unlocking position, the user will not trigger the unlocking block 400 when pulling the sliding plate 200 in the extending direction, which greatly reduces the misunlocking rate.

[0074] Embodiment one:

[0075] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 7 , the one-way locking member is arranged as the embracing spring 600, the side surface of the gear 300 is provided with the brake wheel part 310 coaxial with the gear 300, the inner diameter of the embracing spring 600 is smaller than the outer diameter of the brake wheel part 310, the embracing spring 600 is sleeved on the brake wheel part 310, one end of the embracing spring 600 is fixedly connected with the sliding plate 200 and the other end is fixedly connected with the control rod 500;

[0076] When the unlocking block 400 is in the locking position, the control rod 500 forces the embracing spring 600 to embrace the brake wheel part 310, when the gear 300 generates a movement tendency of rotating in the first direction, the embracing spring 600 generates a movement tendency of loosening to allow the gear 300 to rotate in the first direction; when the gear 300 generates a movement tendency of rotating in the second direction, the embracing spring 600 generates a movement tendency of tightening to limit the gear 300 from rotating in the second direction.

[0077] When the unlocking block 400 is in the unlocking position, the control rod 500 forces the embracing spring 600 to loosen the brake wheel part 310, and the gear 300 is allowed to rotate in the first direction or the second direction. In addition, the embracing spring 600 also exerts a spring force on the control rod 500 to reset it.

[0078] The fixed end (lower end) of the embracing spring 600 is fixedly connected with the sliding plate 200, and the free end (upper end) of the embracing spring 600 is fixedly connected with the control rod 500. The embracing spring 600 extends in a counterclockwise direction (in the same direction as the second direction) from the fixed end as a starting point. When the gear 300 and the brake wheel thereon rotate in the first direction, the embracing spring 600 is loosened naturally due to the fixed free end, and the gear 300 can rotate freely. When the gear 300 and the brake wheel rotate in the second direction (in the same direction as the spiral direction of the embracing spring 600), the embracing spring 600 is tightened by the brake wheel part 310, thereby limiting the rotation of the gear 300, i.e., the gear 300 cannot rotate in the second direction when the free end (upper end) is not unlocked.

[0079] The working principle of the embracing spring 600 is similar to that of an overrunning clutch, which uses the radial contraction / expansion characteristics of the embracing spring 600 to achieve one-way locking. When the unlocking block 400 is in the locking position, the control rod 500 is in a specific position under the linkage of the unlocking block 400, which forces the free end of the embracing spring 600 to be twisted to a specific angle. At this angle, the embracing spring 600 is in a pre-tightened state, and the inner diameter of the embracing spring 600 is smaller than or equal to the outer diameter of the gear 300. The embracing spring 600 tightly grips the gear 300, generating a large radial embracing force (normal pressure). In this state, the gear 300 moves in the first direction, and the embracing spring 600 responds. Since the embracing spring 600 is designed to rotate in the same direction as the first direction, the gear 300 rotates in the first direction, causing the embracing spring 600 to have a “loosening” (slightly increasing in diameter) movement tendency. This “loosening” tendency reduces the radial embracing force of the embracing spring 600 on the gear 300, and the gear 300 can overcome the small friction between them to rotate freely in the first direction. The sliding plate 200 can be smoothly pulled out.

[0080] When the gear 300 moves in the second direction (retraction direction), the gear 300 rotates in the second direction, causing the embracing spring 600 to have a “tightening” (slightly decreasing in diameter) movement tendency. This “tightening” tendency greatly increases the radial embracing force of the spring on the gear 300, and the friction torque between the gear 300 and the embracing spring 600 increases sharply. The gear 300 cannot overcome the large friction to be completely locked and cannot rotate in the second direction. The sliding plate 200 is firmly locked in the current position (hovering).

[0081] The unlocking block 400 is in the unlocking position, the unlocking block 400 is driven by the linkage mechanism to slide the control lever 500 to another specific position, the control lever 500 pulls the free end of the embracing spring 600 to twist to a new angle, and the embracing spring 600 is in a "relaxed" state at the new twist angle. The inner diameter is significantly larger than the outer diameter of the gear 300, and the spring coil no longer tightly clamps the gear 300, and there is a clear gap or only slight contact between the two. At this time, whether the gear 300 tries to rotate in the first direction or the second direction, there is almost no effective contact pressure between the surface of the gear 300 and the inner circle of the embracing spring 600, the friction torque is extremely small or zero, and the gear 300 can be completely free to rotate in both directions, and the sliding plate 200 can be bidirectional free sliding.

[0082] Embodiment two:

[0083] As shown in Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 , the one-way locking member is provided as a beveled end head 700 at the end of the control lever 500, and the beveled end head 700 has a locking bevel 710.

[0084] When the unlocking block 400 is in the locking position, the locking bevel 710 is in contact with the tooth surface of the gear 300 and restricts the rotation of the gear 300 in the second direction.

[0085] When the unlocking block 400 is in the unlocking position, the locking bevel 710 is separated from the gear 300, and the gear 300 is allowed to rotate in the first direction or the second direction.

[0086] The beveled end head 700 is located at the end of the control lever 500 (close to the side of the gear 300). It is not an independent part, but a part of the control lever 500, and the beveled end head 700 forms a special shape with gradually increasing thickness from the outer end to the other end through the locking bevel 710, and the beveled end head 700 is coupled with the gear 300 through this wedge-shaped shape. Specifically, one end of the beveled end head 700 is thin and the other end gradually thickens, which can restrict the rotation of the gear 300 when the thicker part tends to insert into the rotation area of the gear.

[0087] In the embodiment two, the principle of coupling the one-way locking member with the gear 300 is as follows: when the unlocking block 400 is in the locking position, the thinner part of the bevel end head 700 is inserted into the gear rotating area, and the tooth surface of the gear 300 is in abutment with the locking bevel 710. When the gear 300 tends to rotate in the first direction, the tooth surface of the gear 300 exerts a pushing force on the bevel end head 700, so that the control rod 500 tends to retreat, which means that the thinner part of the bevel end head 700 tends to exit the gear rotating area, thereby leaving enough space for the gear 300 to rotate. When the gear 300 tends to rotate in the second direction, the tooth surface of the gear 300 exerts a pulling force on the bevel end head 700, so that the control rod 500 tends to extend laterally, which means that the thicker part of the bevel end head 700 tends to be inserted into the gear rotating area, resulting in that the gear 300 is blocked by the bevel end head 700 and cannot rotate in the second direction.

[0088] When the unlocking block 400 is in the unlocking position, the control rod 500 is retracted inwardly, the bevel end head 700 completely exits the gear rotating area, and the locking bevel 710 is separated from the gear 300, so that the gear 300 can rotate freely.

[0089] As shown in Figures 1 to 7 A vehicle includes a vehicle sunshade curtain having a hovering function, and a vehicle body, wherein the vehicle sunshade curtain is arranged at a window of the vehicle body and / or in a trunk of the vehicle body.

[0090] When the sunshade curtain is arranged at the window, the sunshade curtain is used as a sunshade curtain, and can be arranged at a front windshield, a side window or a rear windshield of the vehicle body, wherein the sliding direction of the curtain cloth 820 and the sliding plate 200 is upward and downward sliding or inclined sliding, and the curtain cloth 820 can be stopped at any position to adjust a specific shading area. When the sunshade curtain is arranged in the trunk, the sunshade curtain is used as a screen curtain, and the sliding direction of the curtain cloth 820 and the sliding plate 200 is horizontal sliding.

[0091] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship and movement condition between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0092] In addition, the description such as “first”, “second”, “one” and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “a plurality of” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0093] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0094] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. A vehicle screen curtain with a hovering function, characterized in that: include: A chute bracket (100), wherein the number of the chute brackets (100) is two, the two chute brackets (100) are arranged in parallel, and the chute bracket (100) is provided with a rack (110); a sliding plate (200), the sliding plate (200) being located between the two chute brackets (100), the sliding plate (200) being configured as a slidable structure capable of sliding along the chute brackets (100) in an extension direction or a retraction direction; Gears (300) are provided on both sides of the sliding plate (200), and the two gears (300) are respectively engaged with the racks (110) of the two chute brackets (100); when the sliding plate (200) slides in the extension direction, the rotation direction of the gears (300) is set to a first direction, and when the sliding plate (200) slides in the retraction direction, the rotation direction of the gears (300) is set to a second direction; The gear (300) forms a one-way rotation structure through a one-way locking member; When the one-way locking member is coupled to the gear (300), the gear (300) is allowed to rotate in the first direction and is restricted from rotating in the second direction, so as to allow the sliding plate (200) to slide in the extension direction and restrict the sliding plate (200) from sliding in the retraction direction; When the one-way locking member is decoupled from the gear (300), the gear (300) is allowed to rotate along the first direction and the second direction to allow the sliding plate (200) to slide along the extension direction and the retraction direction.

2. The vehicle sunshade curtain with a hovering function according to claim 1, characterized in that: The invention also includes a curtain frame (800), a roller tube (810), a curtain (820) and a reset drive member, wherein the roller tube (810) is rotatably mounted on the curtain frame (800), one end of the curtain (820) is connected to the roller tube (810), the sliding plate (200) is connected to the other end of the curtain (820), and the reset drive member is connected to the roller tube (810). The reset drive member applies a pulling force to the sliding plate (200) through the roller tube (810) and the curtain (820), causing the sliding plate (200) to move in the retraction direction.

3. The vehicle sunshade curtain with a hovering function according to claim 1, characterized in that: The sliding plate (200) is provided with a slidable unlocking mechanism, the one-way locking member is connected to the unlocking mechanism or the one-way locking member is located on the unlocking mechanism, the unlocking mechanism has a locked state and an unlocked state, when the unlocking mechanism is in the locked state, the one-way locking member is coupled to the gear (300), and when the unlocking mechanism is in the unlocked state, the one-way locking member is decoupled from the gear (300).

4. The vehicle sunshade curtain with a hovering function according to claim 3, characterized in that: The unlocking mechanism comprises an unlocking block (400) and two control rods (500), wherein the unlocking block (400) and the two control rods (500) are both slidably connected to the sliding plate (200), the unlocking block (400) is linked to the two control rods (500), and the stroke position of the unlocking block (400) determines the stroke position of the two control rods (500); when the unlocking block (400) slides, it simultaneously drives the two control rods (500) to slide, and the sliding directions of the two control rods (500) are opposite; the two control rods (500) are respectively connected to the two one-way locking members, or the two one-way locking members are respectively located on the two control rods (500).

5. The vehicle sunshade curtain with a hovering function according to claim 4, characterized in that: The unlocking block (400) is provided with two driving inclined surfaces (410), and the control rod (500) is provided with a force-bearing inclined surface (510). The two driving inclined surfaces (410) on the unlocking block (400) are respectively attached to the force-bearing inclined surfaces (510) of the two control rods (500) to form an inclined surface driving structure. The travel position of the unlocking block (400) includes a locking position and an unlocking position; when the unlocking block (400) is in the locking position, the one-way locking member is coupled to the gear (300) through the control rod (500); when the unlocking block (400) is in the unlocking position, the one-way locking member is decoupled from the gear (300) through the control rod (500).

6. The vehicle sunshade curtain with a hovering function according to claim 5, characterized in that: The unlocking mechanism further comprises a locking spring (420), the two ends of which are respectively connected to the unlocking block (400) and the sliding plate (200), and the locking spring (420) applies an elastic force to the unlocking block (400) to make it tend toward the locking position.

7. The vehicle sunshade curtain with a hovering function according to claim 5 or 6, characterized in that: The sliding plate (200) is provided with a handle hole (210), and the unlocking block (400) is located in the handle hole (210).

8. The vehicle sunshade curtain with a hovering function according to claim 4, characterized in that: The one-way locking member is configured as a clamping spring (600), a brake wheel portion (310) coaxial with the gear (300) is provided on the side surface of the gear (300), the inner diameter of the clamping spring (600) is smaller than the outer diameter of the brake wheel portion (310), the clamping spring (600) is sleeved on the brake wheel portion (310), one end of the clamping spring (600) is fixedly connected to the sliding plate (200) and the other end is fixedly connected to the control rod (500); Wherein, when the unlocking block (400) is located in the locking position, the control rod (500) forces the holding spring (600) to hold the brake wheel portion (310), and when the gear (300) generates a movement trend of rotating along the first direction, the holding spring (600) generates a movement trend of loosening, thereby allowing the gear (300) to rotate along the first direction; when the gear (300) generates a movement trend of rotating along the second direction, the holding spring (600) generates a movement trend of tightening, thereby restricting the gear (300) from rotating along the second direction; When the unlocking block (400) is located at the unlocking position, the control rod (500) forces the holding spring (600) to release the braking wheel portion (310), and the gear (300) is allowed to rotate in the first direction or the second direction.

9. The vehicle window curtain with a hovering function according to claim 4, characterized in that: The one-way locking member is configured as a bevel end head (700) located at the end of the control rod (500), and the bevel end head (700) has a locking bevel (710); When the unlocking block (400) is located at the locking position, the locking inclined surface (710) contacts and connects with the tooth surface of the gear (300) and restricts the gear (300) from rotating in the second direction; When the unlocking block (400) is located at the unlocking position, the locking inclined surface (710) is separated from the gear (300), and the gear (300) is allowed to rotate in the first direction or the second direction.

10. A vehicle, characterized in that: It comprises a vehicle window curtain with a hovering function as claimed in any one of claims 1 to 9, and also comprises a vehicle body, wherein the vehicle window curtain is arranged at the window of the vehicle body and / or in the trunk of the vehicle body.

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