Sun-shading curtain locking structure, sun-shading curtain device, vehicle door and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses an abat vent locking structure, an abat vent device, a vehicle door and a vehicle, a friction piece is rotated and the rotation direction of the friction piece is controlled, or the friction piece is translated in the direction perpendicular to the Z direction, and the friction resistance between a sliding block and the inner wall of a sliding groove in contact with the sliding block is adjusted. The friction piece is switched between the locking position and the unlocking position, and when the friction piece is located at the locking position, the friction piece is limited to move in the Z direction relative to the guide rail through first friction resistance between the sliding block and the inner wall, making contact with the sliding block, of the sliding groove; when the friction piece is in the unlocking position, the friction resistance between the sliding block and the inner wall, making contact with the sliding block, of the sliding groove is second friction resistance, the second friction resistance is larger than or equal to zero and smaller than the first friction resistance, and the friction piece can move in the Z direction relative to the guide rail. The sunshade curtain locking structure is simple and low in cost, switching of the friction piece between the locking position and the unlocking position is convenient and fast, and curtain cloth can stay at any position of the guide rail in the Z direction.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a sunshade locking structure, a sunshade device, a car door, and a vehicle. Background Technology

[0002] Automotive sunshades come in two types: roll-up and motorized. Roll-up sunshades have one end of the fabric connected to a retractable mechanism at the bottom of the window, and the other end equipped with a hook to attach to a hook at the top of the window, keeping the fabric extended. To retract the fabric, the hook is released, and the retractable mechanism rolls it up. However, these sunshades are either fully open or fully closed, making it impossible to provide partial sun protection while still allowing for observation of the outside through the uncovered portion of the window.

[0003] Electric sunshades can stop the curtain at any position between fully rolled up and fully extended, but they have drawbacks such as complex structure, large space occupation, and high cost. Utility Model Content

[0004] The purpose of this utility model is to propose a sunshade curtain locking structure, a sunshade curtain device, a car door, and a vehicle, which can enable the curtain to stay in any position, improve the convenience of operation, simplify the structure of the sunshade curtain device, and reduce costs.

[0005] To achieve this objective, firstly, the sunshade locking structure provided by this utility model includes:

[0006] Friction components, used to connect curtain fabric;

[0007] A guide rail extends along the Z direction. One of the friction member and the guide rail is provided with a groove, and the other is provided with a slider. The slider is slidably inserted into the groove along the Z direction. The friction member can rotate relative to the guide rail or translate in a direction perpendicular to the Z direction, so that the friction member moves back and forth between a locked position and an unlocked position.

[0008] When the friction element is in the locked position, the frictional resistance between the slider and the inner wall of the groove it contacts is the first frictional resistance, which restricts the friction element from moving relative to the guide rail in the Z direction. When the friction element is in the unlocked position, the frictional resistance between the slider and the inner wall of the groove it contacts is the second frictional resistance, which is greater than or equal to zero and less than the first frictional resistance, allowing the friction element to move relative to the guide rail in the Z direction.

[0009] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, the friction member extends along the X direction relative to the axis of rotation of the guide rail, the opening direction of the slide groove is the Y direction, and the X direction, the Y direction and the Z direction are perpendicular to each other;

[0010] From the bottom of the groove to the opening of the groove, the width of the groove gradually increases; when the friction element is in the locked position, the slider is clamped between the two opposite inner walls of the groove along the X direction.

[0011] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, the bottom wall of the slide groove forms an anti-rotation part, and the surface of the slider opposite to the anti-rotation part forms a pressing part;

[0012] When the friction member is in the locked position, the pressing part presses against the anti-rotation part along the rotation direction of the friction member; when the friction member is in the unlocked position, the pressing part and the anti-rotation part separate.

[0013] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, one of the friction member and the guide rail is provided with a guide groove, and the guide groove has two first inner walls arranged opposite to each other along the Y direction;

[0014] The friction element and the other of the guide rail slide in the guide groove along the Z direction, and have two first sidewalls arranged opposite to each other along the Y direction;

[0015] Two first inner walls and two first side walls are provided in a one-to-one correspondence. One of the first side walls and the corresponding first inner wall is provided with the slider, and the other is provided with the groove.

[0016] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, the guide groove is provided with a first limiting part on each of the two opposite inner walls along the Y direction, and the friction member or the guide rail with the first side wall is limited between the two first limiting parts along the Y direction.

[0017] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, the bottom of the guide groove is provided with a protruding second limiting part, and the friction member or the guide rail with the first sidewall can abut against the second limiting part along the X direction.

[0018] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, when the friction member is in the unlocked position, the friction member or the guide rail with the first sidewall and the second limiting part are spaced apart along the X direction.

[0019] As one feasible technical solution for the above-mentioned sunshade curtain locking structure, the guide groove is provided on the guide rail;

[0020] The friction element includes a body and a first elastic wear-resistant layer covering at least a portion of the body, wherein the wear rate of the first elastic wear-resistant layer is less than the wear rate of the body, and the first elastic wear-resistant layer forms at least a surface that contacts the guide rail.

[0021] And / or, the guide rail includes a body and a second elastic wear-resistant layer disposed on at least a portion of the surface of the body, the wear rate of the second elastic wear-resistant layer being less than the wear rate of the body, and the second elastic wear-resistant layer forming at least a surface in contact with the friction element.

[0022] Secondly, the sunshade curtain device provided by this utility model includes a curtain fabric, a support member extending along the X direction and connected to the curtain fabric, and a sunshade curtain locking structure as provided in any of the above-mentioned feasible embodiments. The sunshade curtain device is provided in two parts, and the support member is connected to the friction member of the two sunshade curtain locking structures at both ends in the X direction, and the X direction is perpendicular to the Z direction.

[0023] As one feasible technical solution for the above-mentioned sunshade curtain device, the curtain fabric has a through hole extending along the X direction at one end in the Z direction, and the support member is rotatably inserted through the curtain fabric about its own extending axis.

[0024] As one feasible technical solution for the above-mentioned sunshade device, the guide rail is provided with a guide groove, and the friction element is slidably disposed in the guide groove along the Z direction;

[0025] The guide groove has two protruding shielding parts on its two inner walls. The two shielding parts are arranged at intervals along the Y direction to form a fabric threading seam. The curtain passes through the fabric threading seam on the two guide rails one by one at both ends of the X direction and is placed between the bottom wall of the guide groove and the shielding part along the X direction. The Y direction is perpendicular to the X direction and the Z direction.

[0026] As one feasible technical solution for the above-mentioned sunshade device, the support member is connected to an operating member, which is used to rotate the support member relative to the guide rail or translate it in a direction perpendicular to the Z direction.

[0027] When the support member is connected to the operating member in a way that restricts relative rotation, the curtain is fixedly connected to the mounting member, and the support member is rotatably inserted through the mounting member about the extension axis in the X direction.

[0028] As one feasible technical solution for the above-mentioned sunshade curtain device, the support member includes at least two rods distributed along the X direction, and a mounting member is provided between two adjacent rods, the mounting member being fixed to the curtain fabric;

[0029] The mounting component has two mounting protrusions spaced apart along the X direction. The two mounting protrusions on the mounting component correspond one-to-one with the two rods at both ends of the mounting component. Adjacent rods are rotatably connected to the same operating component after passing through the corresponding mounting protrusions around their own extension axis.

[0030] Thirdly, the vehicle door provided by this utility model includes a sunshade device as described in any of the above-described embodiments.

[0031] Fourthly, the vehicle provided by this utility model includes the aforementioned door, or a sunshade device as described in any of the aforementioned feasible embodiments.

[0032] This utility model has at least the following beneficial effects:

[0033] The sunshade locking structure provided by this utility model can switch between a locked and unlocked position by rotating a friction component and controlling its rotation direction, or by translating the friction component in a direction perpendicular to the Z-direction, and adjusting the friction resistance between the slider and the inner wall of the groove it contacts. In the locked position, the first friction resistance between the slider and the inner wall of the groove restricts the friction component's movement relative to the guide rail in the Z-direction. In the unlocked position, the friction resistance between the slider and the inner wall of the groove is a second friction resistance, which is greater than or equal to zero and less than the first friction resistance, allowing the friction component to move relative to the guide rail in the Z-direction. This sunshade locking structure is relatively simple, low in cost, and the switching between the locked and unlocked positions of the friction component is convenient and quick.

[0034] The sunshade curtain device provided by this utility model includes the aforementioned sunshade curtain locking structure. When it is necessary to adjust the position of the curtain in the Z direction, the friction member is rotated or translated in a direction perpendicular to the Z direction, so that the friction resistance between the slider and the inner wall of the groove in contact with it gradually decreases, allowing the friction member to drive the curtain to move relative to the guide rail in the Z direction, thereby adjusting the position of the curtain. When it is necessary to fix the curtain, the friction member is rotated or translated in a direction perpendicular to the Z direction, increasing the friction resistance between the slider and the inner wall of the groove in contact with it. This friction resistance is used to prevent the friction member from moving relative to the guide rail in the Z direction, so that the friction member can stop at any position of the guide rail in the Z direction, thereby allowing the curtain connected to the friction member to stop at any position of the guide rail in the Z direction.

[0035] By simply controlling the rotation of the friction element and its rotation direction, or by translating the friction element in a direction perpendicular to the Z direction, the curtain connected to the friction element can be stopped at any position along the Z direction of the guide rail, making the operation relatively convenient and quick.

[0036] The vehicle door provided by this utility model includes the aforementioned sunshade device, which allows users to easily adjust the position of the curtain according to their actual needs and then fix the curtain in place. The operation is convenient and quick, improving the user experience; it can also reduce the cost of vehicle doors with sunshade devices installed.

[0037] The vehicle provided by this utility model, including the aforementioned door, can reduce costs and improve user experience.

[0038] The vehicle provided by this utility model includes the above-mentioned sunshade device, which can be applied to any window of the vehicle. It allows users to easily adjust the position of the curtain according to actual needs and then fix the curtain. The operation is convenient and quick, improving the user experience. It can also reduce the cost of vehicles equipped with sunshade devices. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the sunshade device provided in the embodiment of the present utility model;

[0040] Figure 2 yes Figure 1 Sectional view along line AA;

[0041] Figure 3 This is a schematic diagram of the structure of the friction component provided in this embodiment of the utility model;

[0042] Figure 4 This is a schematic diagram showing the connection between the friction element and the support element provided in this embodiment of the utility model;

[0043] Figure 5 This is a structural schematic diagram of the support member provided in an embodiment of the present utility model;

[0044] Figure 6 yes Figure 5 A magnified view of a portion of point D in the middle;

[0045] Figure 7 yes Figure 1 EE-directed sectional view;

[0046] Figure 8 This is a schematic diagram of the structure of the operating component provided in an embodiment of this utility model;

[0047] Figure 9 This is a schematic diagram of the structure of the mounting component provided in this embodiment of the utility model;

[0048] Figure 10 yes Figure 5 A magnified view of a portion of point C.

[0049] In the picture:

[0050] 11. Support component; 11a. Rod; 111. Insertion hole; 112. Insertion groove; 113. Locating pin; 114. Center hole;

[0051] 12. Friction component; 121. Sliding part; 1211. Slide groove; 1212. Anti-rotation part; 122. Insertion part; 123. Protrusion;

[0052] 2. Curtain;

[0053] 3. Guide rail; 31. Guide groove; 311. Slider; 3111. Pressing part; 312. First limiting part; 313. Second limiting part; 314. Blocking part;

[0054] 4. Operating component; 41. Operating part; 42. Hook part; 43. Assembly part; 431. Positioning hole; 44. Anti-slip part;

[0055] 5. Mounting parts; 51. Mounting protrusions. Detailed Implementation

[0056] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0057] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0060] Embodiments of this utility model provide a sunshade locking structure, a sunshade device including the sunshade locking structure, a vehicle door including the sunshade device, a vehicle including the vehicle door, and a vehicle including the aforementioned sunshade device. This allows the curtain to be stopped at any position while simplifying the structure of the sunshade device, reducing costs, and improving operational convenience. Figures 1 to 10 In the illustrated embodiment, the X, Y, and Z directions are mutually perpendicular, where the Z direction refers to the vertical direction, the X direction refers to the front-to-back direction of the vehicle, and the Y direction refers to the width direction of the vehicle. The aforementioned door can be any door on the vehicle, and the sunshade device can also be used for other windows on the vehicle, such as the rear window and the front window.

[0061] like Figure 1 and Figure 2 As shown, the sunshade curtain locking structure includes a friction element 12 and a guide rail 3. The friction element 12 is connected to the curtain fabric 2. The guide rail 3 extends along the Z direction. One of the friction element 12 and the guide rail 3 is provided with a groove 1211, and the other is provided with a slider 311. The slider 311 is slidably inserted into the groove 1211 along the Z direction. The friction element 12 can rotate relative to the guide rail 3, so that the friction element 12 moves back and forth between the locked position and the unlocked position.

[0062] When the friction member 12 is in the locked position, the frictional resistance between the slider 311 and the inner wall of the groove 1211 it contacts is the first frictional resistance, which restricts the movement of the friction member 12 relative to the guide rail 3 in the Z direction. When the friction member 12 is in the unlocked position, the frictional resistance between the slider 311 and the inner wall of the groove 1211 it contacts is the second frictional resistance. The second frictional resistance is greater than or equal to zero and less than the first frictional resistance, allowing the friction member 12 to move relative to the guide rail 3 in the Z direction. Exemplarily, the groove 1211 is provided on the friction member 12, and the slider 311 is provided on the guide rail 3. Alternatively, the groove 1211 can be provided on the guide rail 3, and the slider 311 on the friction member 12.

[0063] This sunshade locking structure allows adjustment of the friction resistance between the slider 311 and the inner wall of the groove 1211 by rotating the friction member 12 and controlling its rotation direction. When adjusting the position of the curtain 2 in the Z direction, rotating the friction member 12 reduces the friction resistance between the slider 311 and the inner wall of the groove 1211, switching the friction member 12 to the unlocked position, allowing the friction member 12 to move the curtain 2 relative to the guide rail 3 in the Z direction. When fixing the curtain 2, rotating the friction member 12 increases the friction resistance between the slider 311 and the inner wall of the groove 1211, switching the friction member 12 to the locked position. This friction resistance prevents the friction member 12 from moving relative to the guide rail 3 in the Z direction, thus fixing the friction member 12 relative to the guide rail 3. This allows the friction member 12 to remain at any position along the Z direction of the guide rail 3, thereby allowing the curtain 2 connected to the friction member 12 to remain at any position along the Z direction of the guide rail 3.

[0064] The locking structure of this sunshade curtain is relatively simple and low in cost; by simply controlling the rotation of the friction element 12 and the direction of rotation of the friction element 12, the curtain 2 connected to the friction element 12 can be stopped at any position along the Z direction of the guide rail 3, making the operation convenient and quick.

[0065] In one embodiment, such as Figure 1 As shown, the sunshade device also includes a curtain 2 and a support member 11 extending along the X direction and connected to the curtain 2. The sunshade device includes two of the aforementioned sunshade locking structures, with the support member 11 connected at both ends in the X direction to friction members 12 of the two sunshade locking structures. Specifically, the curtain 2 is located between the two sunshade locking structures. When adjusting the position of the curtain 2 in the Z direction, the two friction members 12 move relative to the two guide rails 3 in the Z direction, improving the stability of the curtain 2's lifting and lowering. When it is necessary to fix the curtain 2, the two friction members 12 are fixed to the two guide rails 3, increasing the frictional resistance between the friction members 12 and the two guide rails 3, thus improving the stability of the curtain 2 when fixed.

[0066] In one embodiment, such as Figure 2 As shown, the axis of rotation of the friction member 12 relative to the guide rail 3 extends along the X direction, and the opening direction of the slide groove 1211 is the Y direction. From the bottom of the slide groove 1211 to the opening of the slide groove 1211, the width of the slide groove 1211 gradually increases. When the friction member 12 is in the locked position, the slider 311 is clamped between the two opposite inner walls of the slide groove 1211 along the X direction.

[0067] When the friction member 12 is rotated from the unlocked position to the locked position, the width of the groove 1211 gradually increases from the bottom of the groove to the opening of the groove 1211. The slider 311 will press against the two inner walls of the groove 1211 and the pressing force will gradually increase. This will cause the frictional resistance between the slider 311 and the inner wall of the groove 1211 to gradually increase until the friction member 12 rotates to the locked position. When the Z direction is vertical, the frictional resistance between the slider 311 and the inner wall of the groove 1211 overcomes the downward gravity of the friction member 12 and the curtain 2 connected to it, so that the friction member 12 is fixed relative to the guide rail 3.

[0068] As an alternative, the friction member 12 can be translated along a direction perpendicular to the Z-direction, allowing it to switch between a locked and unlocked position. For example, since the width of the groove 1211 gradually increases from its bottom to its opening, translating the friction member 12 along the Y-direction causes the slider 311 to press against the two opposing inner walls of the groove 1211 along the X-direction. This gradually increases the frictional resistance between the slider 311 and the inner walls of the groove 1211 until the friction member 12 is translated to the locked position. This frictional resistance prevents the friction member 12 from moving relative to the guide rail 3 along the Z-direction, thus fixing the friction member 12 relative to the guide rail 3. It is worth noting that the friction member 12 can also be translated along the X-direction, allowing it to switch between a locked and unlocked position.

[0069] In one embodiment, such as Figures 1 to 3 As shown, one of the friction member 12 and the guide rail 3 is provided with a guide groove 31. The guide groove 31 has two first inner walls that are arranged opposite each other along the Y direction. The other friction member 12 and the guide rail 3 slides with the guide groove 31 along the Z direction and has two first side walls that are arranged opposite each other along the Y direction. The two first inner walls and the two first side walls are arranged in a one-to-one correspondence. One of the first side walls and the corresponding first inner walls is provided with a slider 311, and the other is provided with a groove 1211.

[0070] For example, the guide groove 31 is provided on the guide rail 3, the slider 311 is provided on the first inner wall, and the sliding groove 1211 is provided on the first side wall. As an alternative, the guide groove 31 can also be provided on the friction member 12; the slider 311 can also be provided on the first side wall, and the sliding groove 1211 can be provided on the first inner wall.

[0071] When the friction element 12 is fixed relative to the guide rail 3, frictional resistance is generated between the inner walls of the two grooves 1211 at both ends of the friction element 12 in the Y direction and the corresponding sliders 311. This increases the contact area between the friction element 12 and the guide rail 3 for generating frictional resistance, which helps to improve the stability of the friction element 12 when it is fixed relative to the guide rail 3. Moreover, when the sunshade device using this sunshade locking structure is applied to a vehicle, vibrations will occur during vehicle operation. When the friction element 12 is in the locked position, the sliders 311 are clamped along the X direction on the two opposing inner walls of the grooves 1211, making it difficult for the friction element 12 to rotate back to the unlocked position.

[0072] As an alternative, the friction element 12 can also adopt a cam structure, with the cam's axis in the X direction. When the friction element 12 is in the unlocked position, the point on the cam furthest from its center does not contact the inner wall of the groove 1211. When it is necessary to switch the friction element 12 to the locked position, the friction element 12 is rotated, and the cam rotates synchronously. The point on the cam furthest from its center gradually approaches the inner wall of the groove 1211, and the cam presses against the inner wall of the groove 1211, causing the frictional resistance between the cam and the inner wall of the groove 1211 to gradually increase. This also achieves the fixation of the friction element 12 relative to the guide rail 3. As an alternative, the friction element 12 can also adopt an elliptical structure extending axially in the X direction. Its locking and unlocking principle is similar to that of the friction element 12 using a cam structure, and will not be described in detail here.

[0073] In one embodiment, such as Figures 1 to 3 As shown, the bottom wall of the groove 1211 forms an anti-rotation part 1212, and the surface of the slider 311 opposite to the anti-rotation part 1212 forms a pressing part 3111; when the friction member 12 is in the locked position, the pressing part 3111 presses against the anti-rotation part 1212 in the rotation direction of the friction member 12; when the friction member 12 is in the unlocked position, the pressing part 3111 and the anti-rotation part 1212 separate.

[0074] When the friction member 12 is rotated from the unlocked position to the locked position, the pressing part 3111 and the anti-rotation part 1212 move closer to each other until the pressing part 3111 abuts against the anti-rotation part 1212. At this point, the friction member 12 can no longer rotate. The force required to continue rotating the friction member 12 suddenly increases significantly. This resistance can be clearly felt by the user during manual operation, which helps to remind the user that the friction member 12 has switched to the locked position. When the friction member 12 is in the unlocked position, the pressing part 3111 and the anti-rotation part 1212 separate, which also helps to reduce the contact area between the friction member 12 and the guide rail 3, reduce the frictional resistance between them, and improve the smoothness of the movement of the friction member 12 in the Z direction.

[0075] As an alternative, a sliding groove 1211 with equal groove width can be used. When the friction member 12 is rotated and is in the locked position, the pressing part 3111 presses against the anti-rotation part 1212 along the rotation direction of the friction member 12. The friction member 12 is clamped between the two sliders 311 along the Y direction, which increases the frictional resistance between the friction member 12 and the guide rail 3, so that the friction member 12 is fixed relative to the guide rail 3.

[0076] In one embodiment, such as Figure 1 and Figure 2 As shown, when the friction member 12 is in the unlocked position, the distance between the anti-rotation part 1212 and the opposing pressing part 3111 is 'a', where 0.5mm ≤ a ≤ 1mm. When 'a' is greater than 1mm, the distance between the anti-rotation part 1212 and the opposing pressing part 3111 is too large. The friction member 12 needs to rotate a large angle to make the anti-rotation part 1212 and the opposing pressing part 3111 press against each other. The closer the anti-rotation part 1212 and the opposing pressing part 3111 are, the greater the force applied to the friction member 12 to make it rotate, the more difficult the friction member 12 is to rotate, and the worse the ease of operation. When a is less than 0.5mm, the gap between the anti-rotation part 1212 and the opposing pressing part 3111 is too small. When the anti-rotation part 1212 and the opposing pressing part 3111 press against each other, the frictional resistance between the slider 311 and the inner wall of the groove 1211 is too small, which may not be enough to fix the friction member 12 relative to the guide rail 3. Even if the frictional resistance between the slider 311 and the inner wall of the groove 1211 is used to fix the friction member 12 relative to the guide rail 3, the stability is poor. It is very easy for the friction member 12 to rotate back to the unlock position when the vehicle shakes.

[0077] By limiting the value to 0.5mm ≤ a ≤ 1mm, the stability of the friction element 12 when it is held in the locked position can be improved while maintaining ease of operation. Preferably, a = 0.7mm.

[0078] When the friction member 12 is in the unlocked position, there is a gap between each pressing part 3111 and the corresponding anti-rotation part 1212 along the Y direction. If the friction member 12 moves along the Y direction, it may cause the pressing part 3111 on one side of the Y direction to contact the corresponding anti-rotation part 1212 when the friction member 12 is in the unlocked position, while the pressing part 3111 on the other side of the Y direction to separate from the corresponding anti-rotation part 1212. This will not only increase the frictional resistance when the friction member 12 moves along the Z direction, but also make it difficult to rotate the friction member 12 when rotating it to switch it to the locked position because the pressing part 3111 on one side of the Y direction and the corresponding anti-rotation part 1212 are already in contact. Therefore, in one embodiment, as Figures 1 to 3As shown, the guide groove 31 has two opposing inner walls along the Y direction, each provided with a first limiting part 312. The friction member 12 or the guide rail 3 with the first sidewall is limited between the two first limiting parts 312 along the Y direction. By providing the first limiting parts 312, the friction member 12 can be limited along the Y direction to prevent the friction member 12 and the guide rail 3 from moving relative to each other along the Y direction. This is beneficial because when the friction member 12 is in the unlocked position, the pressing parts 3111 of the two sliders 311 are separated from the corresponding anti-rotation parts 1212, and when the friction member 12 is in the locked position, the pressing parts 3111 of the two sliders 311 are pressed against the corresponding anti-rotation parts 1212.

[0079] For example, the guide groove 31 is provided on the guide rail 3, and the friction member 12 is sandwiched between the two first limiting parts 312 along the Y direction. As an alternative, in order to reduce the resistance when moving the curtain 2 along the Z direction, the friction member 12 and the first limiting parts 312 can be spaced apart along the Y direction, and the distance between them is b, 0.1mm≤b<0.25mm. If b is greater than or equal to 0.25mm, this distance is too large, which will cause the first limiting parts 312 to be unable to limit the friction member 12 in the Y direction. If b is less than 0.1mm, this distance is too small, which will cause the first limiting parts 312 to easily come into contact with the curtain 2 covering the friction member 12 when moving the curtain 2 along the Z direction, thus increasing the resistance to movement. By limiting 0.1mm≤b<0.25mm, it is possible to limit the friction member 12 in the Y direction using the first limiting parts 312 while reducing the resistance when moving the curtain 2 along the Z direction.

[0080] In one embodiment, such as Figure 2 and Figure 3 As shown, taking the guide groove 31 located on the guide rail 3 as an example, the friction element 12 includes a body and a first elastic wear-resistant layer covering at least a portion of the body. The wear rate of the first elastic wear-resistant layer is less than the wear rate of the body, and the first elastic wear-resistant layer at least forms a surface that contacts the guide rail 3. This arrangement not only helps to reduce the wear of the friction element 12 and extend its service life, but also helps to increase the frictional resistance between the friction element 12 and the guide rail 3. It should be noted that at least a portion of the surface of the body is covered with the first elastic wear-resistant layer. In other words, the first elastic wear-resistant layer can be covered on the entire outer surface of the body, or it can be covered only on a portion of the surface of the body, as long as the first elastic wear-resistant layer at least forms a surface that contacts the guide rail 3.

[0081] For example, the first elastic wear-resistant layer is made of rubber, such as thermoplastic elastomer (TPE), and the body is made of engineering plastic, such as ABS plastic structural parts (ABS stands for Acrylonitrile He-butadiene-styrene). As an alternative, the friction element 12 can also be made of a one-piece molded elastic wear-resistant structure, such as thermoplastic elastomer.

[0082] As an alternative, the guide rail 3 may include a main body and a second elastic wear-resistant layer disposed on at least a portion of the surface of the main body. The wear rate of the second elastic wear-resistant layer is less than the wear rate of the main body, and the second elastic wear-resistant layer forms at least a surface capable of contacting the guide rail 3. It should be noted that the main body may be made of the same material as the main body, and the second elastic wear-resistant layer may be made of the same material as the first elastic wear-resistant layer. Alternatively, the guide rail 3 may be an integrally molded elastic wear-resistant structure, such as a thermoplastic elastomer. As an alternative, the first elastic wear-resistant layer may be coated on the body of the friction element 12, while the second elastic wear-resistant layer is also coated on the main body of the guide rail 3.

[0083] It should be noted that at least part of the surface of the main body is covered with a second elastic wear-resistant layer. In other words, the second elastic wear-resistant layer can be covered on the entire outer surface of the main body, or it can be covered only on part of the surface of the main body. As long as the second elastic wear-resistant layer forms at least a surface that can contact the guide rail 3.

[0084] In one embodiment, such as Figures 1 to 3 As shown, taking the guide groove 31 located on the guide rail 3 as an example, the friction member 12 is slidably disposed on the guide groove 31 along the Z direction. Each of the opposite side walls of the guide groove 31 has a protruding blocking portion 314. The two blocking portions 314 are arranged at intervals along the Y direction to form a fabric-passing seam. The curtain fabric 2 passes through the fabric-passing seams on the two guide rails 3 one-to-one at both ends of its X direction and is placed between the blocking portion 314 and the bottom wall of the guide groove 31. By blocking the curtain fabric 2 with the blocking portion 314, the edges of the curtain fabric 2 in the X direction are prevented from being exposed, thus avoiding affecting the aesthetics.

[0085] In one embodiment, the shielding portion 314 is spaced apart from the curtain 2 that passes through the fabric seam along the Y direction. By setting this interval, the shielding portion 314 and the curtain 2 can be prevented from contacting and abrading the curtain 2 when the curtain 2 is moved along the Z direction or the friction member 12 is rotated.

[0086] In one embodiment, the distance between the curtain 2 and any blocking part 314 in the Y direction is H, where 0.15mm≤H≤0.25mm.

[0087] When H is greater than 0.25mm, the distance between the curtain 2 and the blocking part 314 in the Y direction will be too large, allowing the user to see the edge of the curtain 2 and other structures inside the guide groove 31, affecting the aesthetics of the sunshade device. When H is less than 0.15mm, the distance between the curtain 2 and any blocking part 314 in the Y direction will be too small. When the friction member 12 moves in the Z direction, friction will easily occur between the curtain 2 and the blocking part 314, increasing the resistance when the friction member 12 moves in the Z direction and easily wearing down the curtain 2, shortening its service life. By limiting H to 0.15mm ≤ H ≤ 0.25mm, the aesthetics of the sunshade device can be improved through the blocking part 314, while the smoothness of the friction member 12's movement in the Z direction can be improved, reducing wear on the curtain 2 and extending its service life. Preferably, H = 0.2mm. It should be noted that when both the blocking part 314 and the first limiting part 312 are provided, along the Y direction, the first limiting part 312 is closer to the extension axis of the support member 11 along the X direction than the blocking part 314. When the part of the support member 11 facing the blocking part 314 and the first limiting part 312 along the Y direction is covered with the curtain 2, the blocking part 314 is less likely to come into contact with the curtain 2 under the limiting effect of the first limiting part 312.

[0088] In one embodiment, such as Figure 2 and Figure 3 As shown, a second limiting part 313 protrudes from the bottom wall of the guide groove 31, and the friction member 12 can abut against the second limiting part 313 in the X direction. For a sunshade device using two of the above-mentioned sunshade locking structures, the support member 11 is limited in the X direction between the two second limiting parts 313. With this arrangement, the second limiting part 313 can limit the support member 11 in the X direction, preventing the support member 11 from moving in the X direction. The second limiting part 313 protrudes from the bottom wall of the guide groove 31, which can reduce the contact area between the friction member 12 and the second limiting part 313, and reduce the frictional resistance when the friction member 12 moves in the Z direction.

[0089] In one embodiment, such as Figure 2 and Figure 3 As shown, when the friction member 12 is in the unlocked position, the friction member 12 with the first sidewall or the guide rail 3 and the second limiting part 313 are arranged at intervals along the X direction. For example, the guide groove 31 is provided on the guide rail 3, and the friction member 12 and the second limiting part 313 are arranged at intervals along the X direction. This arrangement reduces the probability of the friction member 12 and the second limiting part 313 contacting and increasing the feeling of resistance when the curtain 2 is moved along the Z direction.

[0090] In one embodiment, the gap between the friction member 12 and the second limiting part 313 along the X direction is L, where 0.15mm ≤ L ≤ 0.25mm. When L is less than 0.15mm, when the friction member 12 moves along the Z direction, the friction member 12 is very likely to always contact the second limiting part 313, which will increase the resistance when the friction member 12 moves along the Z direction. When L is greater than 0.25mm, the gap between the friction member 12 and the second limiting part 313 along the X direction will be too large, making it impossible for the friction member 12 to contact the second limiting part 313, thereby causing the second limiting part 313 to lose its function of limiting the friction member 12 along the X direction. By limiting L to 0.15mm ≤ L ≤ 0.25mm, the second limiting part 313 can simultaneously limit the friction member 12 along the X direction and improve the smoothness of the friction member 12's movement along the Z direction. Preferably, L = 0.2mm.

[0091] In one embodiment, such as Figure 1 , Figures 4 to 6 As shown, the support member 11 is connected to the operating member 4, which applies an external force to the operating member 4 to cause the support member 11 to drive the friction member 12 to rotate relative to the guide rail 3. Exemplarily, one end of the operating member 4 is always exposed. This arrangement allows the user to control the rotation of the friction member 12 relative to the guide rail 3 by pulling or pressing the exposed part of the operating member 4, so that the friction member 12 moves back and forth between the locked and unlocked positions, improving operational convenience. Alternatively, when the friction member 12 is switched between the locked and unlocked positions by translating it in a direction perpendicular to the Z-direction, the operating member 4 is correspondingly used to apply an external force to cause the support member 11 to drive the friction member 12 to translate in a direction perpendicular to the Z-direction.

[0092] For example, when the friction member 12 is in the unlocked position, the operating member 4 is in a horizontal state; pressing the operating member 4 will rotate the friction member 12 to switch to the locked position. It should be noted that, with the friction member 12 in the unlocked position and the operating member 4 in a horizontal state, the friction member 12 can also be rotated to switch to the locked position by pulling the operating member 4.

[0093] In one embodiment, such as Figures 2 to 4As shown, taking the guide groove 31 located on the guide rail 3 as an example, the friction element 12 and the support element 11 are installed by interference fit, so that when the operating element 4 is pressed or pulled, the support element 11 drives the friction element 12 to rotate. Since the friction element 12 has requirements for wear resistance, and the support element 11 is used to support the curtain 2 and has requirements for structural strength, the friction element 12 and the support element 11 are set separately. This makes it easier to select materials for the friction element 12 and the support element 11 according to actual needs, and then fix the friction element 12 and the support element 11 by interference fit. The installation method is simple, quick and convenient. For example, the contact surface of the friction element 12 and the support element 11 is non-circular in the cross section perpendicular to the X direction. This setting can prevent the friction element 12 and the support element 11 from rotating relative to each other, so that when the support element 11 rotates, the friction element 12 and the support element 11 rotate synchronously. As an alternative, the friction element 12 can also be integrally formed into the support element 11. As an alternative, the friction element 12 and the support element 11 can be connected by splines, flat keys, or other means to restrict the relative rotation of the friction element 12 and the support element 11.

[0094] Specifically, such as Figures 2 to 6 As shown, the friction member 12 includes a sliding part 121 and an insertion part 122 connected to the sliding part 121. A groove 1211 is provided on the sliding part 121. A protrusion 123 protrudes from the outer wall of the insertion part 122. The end face of the support member 11 is provided with an insertion hole 111. The inner wall of the insertion hole 111 is provided with an insertion groove 112 that extends radially to the outer wall of the support member 11. One end of the insertion groove 112 extends to the end face of the support member 11. When one axial end of the insertion part 122 is inserted into the insertion hole 111 in the X direction, the protrusion 123 is inserted into the insertion groove 112. When the support member 11 is rotated, the engagement of the insertion groove 112 and the protrusion 123 will restrict the rotation of the support member 11 relative to the friction member 12, causing the friction member 12 to rotate with the support member 11. For example, two protrusions 123 are provided, and the two protrusions 123 are distributed at 180°, which helps to improve the connection stability between the friction member 12 and the support member 11. It should be noted that the number of protrusions 123 is not limited to two, but can also be one, three, four or more, etc.

[0095] In one embodiment, such as Figure 2 As shown, the support member 11 has an axially through central hole 114. In other words, the support member 11 is a hollow rod, which helps to reduce the weight of the support member 11, thereby reducing the required frictional resistance to fix the friction member 12 and the guide rail 3 relatively. It should be noted that one end of the central hole 114 forms the aforementioned insertion hole 111.

[0096] Since the support member 11 is used to support the curtain 2, in order to ensure that the structural strength of the support member 11 meets the support requirements, in one embodiment, the support member 11 is a metal rod, such as a copper rod, an aluminum rod, or a steel rod, etc., which will not be specifically limited here.

[0097] In one embodiment, such as Figures 1 to 3 As shown, the curtain 2 has a through hole extending in the X direction at one end in the Z direction, and the support member 11 is rotatably inserted through the curtain 2 about its own extending axis. This arrangement can prevent the curtain 2 from being rolled up and stretched when the friction member 12 is rotated, thus avoiding affecting the aesthetic effect, and at the same time improves the smoothness of the rotation of the friction member 12.

[0098] In one embodiment, such as Figure 1 , Figure 5 , Figures 7 to 9 As shown, the curtain 2 is fixedly connected to the mounting member 5, and the support member 11 is rotatably inserted through the mounting member 5 about the extension axis in the X direction, and the support member 11 is connected to the operating member 4 with relative rotation restricted.

[0099] Specifically, the support member 11 includes at least two rods 11a distributed along the X direction, and a mounting member 5 is provided between two adjacent rods 11a. The mounting member 5 is fixed to the curtain fabric 2. The mounting member 5 has two mounting protrusions 51 arranged at intervals along the X direction. The two mounting protrusions 51 on the mounting member 5 correspond one-to-one with the two rods 11a at both ends of the mounting member 5. Two adjacent rods 11a are rotatably connected to the same operating member 4 after passing through the corresponding mounting protrusions 51 around their own extension axis and being restricted from relative rotation. The mounting member 5 can provide support for the support member 11 and can prevent the curtain fabric 2 from rolling when the support member 11 rotates.

[0100] For example, two rods 11a are provided, which can centrally position the operating member 4, so that when the operating member 4 is pressed or pulled, the force transmitted to both ends of the friction member 12 is balanced, which helps to improve the stability of the friction member 12 during rotation.

[0101] For example, the mounting piece 5 and the curtain 2 are glued together, a simple and quick fixation method.

[0102] In one embodiment, such as Figure 7 , Figure 8 and Figure 10 As shown, the support member 11 is interference-fitted onto the operating member 4. This arrangement allows the support member 11 to rotate with the operating member 4 when it is lifted or pressed.

[0103] Specifically, the contact surface of the interference fit between the support member 11 and the operating member 4 has a non-circular cross-section perpendicular to the X direction. This restricts the relative rotation of the support member 11 and the operating member 4, allowing the support member 11 to rotate with the operating member 4 when it is lifted or pressed. Alternatively, the support member 11 and the operating member 4 can be connected by splines, flat keys, or other means to restrict their relative rotation.

[0104] For example, by cutting the end of the support member 11 along the axial direction, a positioning pin 113 with a non-circular cross-section is formed at the end of the support member 11. An assembly part 43 is provided on one side of the operating member 4 near the hook part 42. The assembly part 43 has a positioning hole 431 that is adapted to the positioning pin 113, and the positioning pin 113 is inserted into the positioning hole 431 with an interference fit.

[0105] For example, the diameter of the positioning hole 431 is smaller than the outer diameter of the positioning pin 113, and the difference between the two is △D, 0.1mm≤△D≤0.2mm, so that the positioning pin 113 and the positioning hole 431 are interference fit.

[0106] In some embodiments, such as Figure 1 , Figure 7 and Figure 8 As shown, the upper door frame of the car door is equipped with a hook, and the operating part 4 is equipped with a hook part 42. When it is necessary to raise the curtain 2 completely, the hook part 42 is hooked onto the hook to fix the curtain 2. At this time, it is not necessary to switch the friction part 12 to the locked position.

[0107] For example, one end of the operating member 4 forms an operating part 41, and the other end is connected to a hook part 42. The hook part 42 is a horizontal bar extending along the X direction. There are two hook parts 42, which are coaxially arranged and respectively located on opposite sides of the operating member 4 in the X direction. The mounting protrusion 51 is located between the operating part 41 and the hook part 42 along the Y direction. As an alternative, the hook part 42 can also be provided on the upper door frame of the vehicle door, and the hook can be provided on the operating member 4.

[0108] In one embodiment, such as Figure 8 As shown, the surface of the operating part 41 is provided with multiple anti-slip parts 44, such as anti-slip protrusions or anti-slip grooves, to facilitate the user to press or lift the operating part 41.

[0109] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lock structure for a sunshade, characterized by, include: Friction element (12) is used to connect the curtain (2); A guide rail (3) extends along the Z direction. One of the friction member (12) and the guide rail (3) is provided with a groove (1211), and the other is provided with a slider (311). The slider (311) is slidably inserted into the groove (1211) along the Z direction. The friction member (12) can rotate relative to the guide rail (3) or translate in a direction perpendicular to the Z direction, so that the friction member (12) moves back and forth between the locked position and the unlocked position. When the friction element (12) is in the locked position, the frictional resistance between the slider (311) and the inner wall of the groove (1211) it contacts is the first frictional resistance, which restricts the friction element (12) from moving relative to the guide rail (3) in the Z direction; when the friction element (12) is in the unlocked position, the frictional resistance between the slider (311) and the inner wall of the groove (1211) it contacts is the second frictional resistance, which is greater than or equal to zero and less than the first frictional resistance, and the friction element (12) can move relative to the guide rail (3) in the Z direction.

2. The lock structure for a sunshade curtain according to claim 1, wherein The axis of rotation of the friction element (12) relative to the guide rail (3) extends along the X direction, and the opening direction of the groove (1211) is the Y direction. The X direction, the Y direction and the Z direction are perpendicular to each other. From the bottom of the groove (1211) to the opening of the groove (1211), the width of the groove (1211) gradually increases; when the friction member (12) is in the locked position, the slider (311) is clamped between the two opposite inner walls of the groove (1211) along the X direction.

3. The lock structure for a sunshade curtain according to claim 2, wherein The bottom wall of the groove (1211) forms an anti-rotation part (1212), and the surface of the slider (311) opposite to the anti-rotation part (1212) forms a pressing part (3111); When the friction member (12) is in the locked position, the pressing part (3111) presses against the anti-rotation part (1212) along the rotation direction of the friction member (12); when the friction member (12) is in the unlocked position, the pressing part (3111) and the anti-rotation part (1212) separate.

4. The lock structure for a sunshade curtain according to claim 2, wherein One of the friction element (12) and the guide rail (3) is provided with a guide groove (31), the guide groove (31) having two first inner walls arranged opposite to each other along the Y direction; The other of the friction element (12) and the guide rail (3) slides in cooperation with the guide groove (31) along the Z direction and has two first sidewalls arranged opposite to each other along the Y direction; Two first inner walls and two first side walls are provided in a one-to-one correspondence. One of the first side walls and the corresponding first inner wall is provided with the slider (311), and the other is provided with the groove (1211).

5. The lock structure for a sunshade curtain according to claim 4, wherein The guide groove (31) has a first limiting part (312) on each of its two opposite inner walls along the Y direction. The friction member (12) or the guide rail (3) with the first side wall is limited between the two first limiting parts (312) along the Y direction.

6. The lock structure for a sunshade curtain according to claim 4, wherein The bottom wall of the guide groove (31) is provided with a protruding second limiting part (313), and the friction member (12) or the guide rail (3) with the first side wall can abut against the second limiting part (313) along the X direction.

7. The lock structure for a sunshade curtain according to claim 6, wherein When the friction element (12) is in the unlocked position, the friction element (12) with the first sidewall or the guide rail (3) and the second limiting part (313) are spaced apart along the X direction.

8. A blind locking structure according to any one of claims 4 to 7, wherein The guide groove (31) is provided on the guide rail (3); The friction element (12) includes a body and a first elastic wear-resistant layer covering at least a portion of the body. The wear rate of the first elastic wear-resistant layer is less than the wear rate of the body. The first elastic wear-resistant layer forms at least a surface that contacts the guide rail (3). And / or, the guide rail (3) includes a body and a second elastic wear-resistant layer disposed on at least a portion of the surface of the body, the wear rate of the second elastic wear-resistant layer being less than the wear rate of the body, and the second elastic wear-resistant layer forming at least a surface in contact with the friction element (12).

9. A blind device characterized by Includes a curtain (2), a support member (11) extending in the X direction and connected to the curtain (2), and a sunshade locking structure as described in any one of claims 1 to 8; The sunshade device is provided in two parts. The support member (11) is connected to the friction member (12) of the two sunshade locking structures at both ends in the X direction, and the X direction is perpendicular to the Z direction.

10. The shade device of claim 9, wherein, The curtain (2) has a through hole extending along the X direction at one end in the Z direction, and the support member (11) is rotatably inserted through the curtain (2) about its own extending axis.

11. The shade device of claim 9, wherein, The guide rail (3) is provided with a guide groove (31), and the friction element (12) is slidably disposed in the guide groove (31) along the Z direction; The guide groove (31) has two protruding shielding parts (314) on its two inner walls. The two shielding parts (314) are arranged at intervals along the Y direction to form a fabric threading seam. The curtain (2) passes through the fabric threading seam on the two guide rails (3) one by one at both ends of the X direction and is placed between the bottom wall of the guide groove (31) and the shielding part (314) along the X direction. The Y direction is perpendicular to the X direction and the Z direction.

12. A blind device according to any one of claims 9 to 11, wherein, The support member (11) is connected to an operating member (4), which is used to rotate the support member (11) relative to the guide rail (3) or translate it in a direction perpendicular to the Z direction. When the support member (11) is connected to the operating member (4) with relative rotation restricted, the curtain (2) is fixedly connected to the mounting member (5), and the support member (11) is rotatably inserted through the mounting member (5) about the extension axis of the X direction.

13. The sunshade device according to claim 12, characterized in that, The support member (11) includes at least two rods (11a) distributed along the X direction, and a mounting member (5) is provided between two adjacent rods (11a), and the mounting member (5) is fixed to the curtain (2); The mounting member (5) is provided with two mounting protrusions (51) arranged at intervals along the X direction. The two mounting protrusions (51) on the mounting member (5) correspond one-to-one with the two rods (11a) at both ends of the mounting member (5). The adjacent rods (11a) are rotatably connected to the same operating member (4) after passing through the corresponding mounting protrusions (51) around their own extension axis.

14. A car door, characterized in that, Includes the sunshade device according to any one of claims 9 to 13.

15. A vehicle, characterized in that, Includes the vehicle door as described in claim 14, or the sunshade device as described in any one of claims 9 to 13.

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