A sunblind

Abstract

The application belongs to the field of sunshade equipment, and specifically provides a sunshade device, which comprises an umbrella cloth, a rib component and a driving component, the umbrella cloth is used for sunshade, the rib component is used for supporting the umbrella cloth, the rib component comprises a lower mounting seat, an upper mounting seat and a rib assembly, one end of the rib assembly is hinged to the lower mounting seat, the other end of the rib assembly is hinged to the upper mounting seat, the upper mounting seat can move in the direction away from or close to the lower mounting seat, the upper mounting seat is provided with a positioning hole, and the lower end of the positioning hole is provided with a first limiting boss; the driving component comprises a telescopic assembly and an expansion-limiting piece, the lower end of the telescopic assembly is connected with the lower mounting seat, the upper end of the telescopic assembly is connected with the rib assembly, the telescopic assembly can drive the rib assembly to switch between a folding state and an unfolding state, the upper end of the telescopic assembly is provided with the expansion-limiting piece, when the rib assembly is in the unfolding state, the expansion-limiting piece is inserted into the positioning hole, and the expansion-limiting piece can be expanded, so that the expansion-limiting piece is limited in the positioning hole by the first limiting boss.

Description

Technical Field

[0001] This invention belongs to the field of sunshade equipment technology, and more specifically, relates to a sunshade device. Background Technology

[0002] During car use, there are inevitably scenarios where the car will be parked under direct sunlight. In such situations, the car body quickly accumulates heat, causing the interior temperature to rise rapidly. Over time, leather or related materials inside the car, exposed to intense sunlight, may release harmful gases, potentially causing breathing difficulties and discomfort. Furthermore, sun exposure can damage the car body; for example, plastics, paint, and rubber will age more rapidly. Additionally, starting the vehicle requires a significant amount of energy for cooling. Therefore, car sunshades have been developed to block direct sunlight from reaching the vehicle body, significantly reducing the interior temperature.

[0003] If a car sunshade is designed like a conventional umbrella, the long support rod will cause the umbrella fabric to be far from the car, thus greatly reducing the sunshade effect. Therefore, some car sunshades adopt a design without a support rod. This design can bring the umbrella fabric closer to the car, but because there is no support rod for fixation, the stability of the umbrella fabric and umbrella ribs is poor when the umbrella is open. In the event of strong winds, the umbrella ribs are prone to deformation or even breakage, thus making the reliability of the car sunshade unable to meet the user's requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a sunshade device to solve the problems of poor stability, easy deformation or breakage of existing sunshade devices in the unfolded state.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a sunshade device, the sunshade device comprising:

[0006] Umbrella fabric, used for sunshade or to block external pollutants;

[0007] An umbrella rib component for supporting the umbrella fabric includes a lower mounting base, an upper mounting base, and an umbrella rib assembly. One end of the umbrella rib assembly is hinged to the lower mounting base, and the other end of the umbrella rib assembly is hinged to the upper mounting base. The upper mounting base is movable in a direction away from or towards the lower mounting base. The upper mounting base is provided with a positioning hole, and a first limiting boss is provided at the lower end of the positioning hole. When the upper mounting base moves to a position away from the lower mounting base, the umbrella rib assembly is in a folded state; when the upper mounting base moves to a position close to the lower mounting base, the umbrella rib assembly is in an unfolded state.

[0008] The driving component includes a telescopic assembly and an expansion / contraction limiting member. The lower end of the telescopic assembly is connected to the lower mounting base, and the upper end of the telescopic assembly is connected to the umbrella rib assembly, enabling the umbrella rib assembly to switch between a closed state and an open state. The expansion / contraction limiting member is provided at the upper end of the telescopic assembly. When the umbrella rib assembly is in the open state, the expansion / contraction limiting member is inserted into the positioning hole, and the expansion / contraction limiting member can expand, so that the expansion / contraction limiting member is restricted within the positioning hole by the first limiting boss.

[0009] Preferably, the external pollutants can be bird and insect excrement, plant leaves and fruits, etc.

[0010] Preferably, the unfolded state of the umbrella rib assembly includes all states where the expansion and contraction limiting member is partially or completely inserted into the positioning hole. That is, as long as at least a portion of the expansion and contraction limiting member is located in the positioning hole, these states all belong to the unfolded state of the umbrella rib assembly.

[0011] Preferably, the sunshade device is used for automotive sunshades.

[0012] Specifically, by setting the first limiting boss and the expansion limiting member that cooperate with each other, the expansion limiting member is restricted within the positioning hole, thereby locking the upper mounting seat onto the telescopic component when the umbrella rib assembly is in the unfolded state. This ensures effective fixation of the upper and lower ends of the umbrella rib assembly, improves the stability of the umbrella rib assembly in the unfolded state, and greatly reduces the risk of deformation or breakage of the umbrella rib assembly.

[0013] Specifically, in the above design, on the one hand, the expansion and contraction limiting member inserted into the positioning hole can restrict the movement of the upper mounting seat in the horizontal direction (front, back, left, and right); on the other hand, the first limiting boss and the expansion and contraction limiting member, which cooperate with each other, can restrict the movement of the upper mounting seat in the vertical direction (up and down). The combination of the two can reliably limit the movement of the upper mounting seat.

[0014] As a preferred technical solution, the expansion and contraction limiting member includes a plurality of elastic claws spaced apart along the circumferential direction, and a second limiting boss disposed at the upper end of the elastic claws.

[0015] Preferably, the first limiting boss is a 360-degree annular boss located at the lower end of the inner wall of the positioning hole; or, the first limiting boss is a plurality of arc-shaped bosses arranged at intervals at the lower end of the inner wall of the positioning hole.

[0016] Specifically, the first limiting boss restricts the second limiting boss from disengaging from the positioning hole, thereby ensuring that the upper mounting base is reliably locked onto the telescopic assembly.

[0017] As a preferred technical solution, the diameter of the circle containing the edge of the second limiting boss is larger than the diameter of the circle containing the edge of the first limiting boss.

[0018] Specifically, under external force, when the upper mounting seat moves away from the lower mounting seat, the second limiting boss is squeezed and deformed by the first limiting boss until the upper end of the expansion and contraction limiting member disengages from the positioning hole, and the second limiting boss resets. Under external force, when the upper mounting seat moves towards the lower mounting seat, the second limiting boss is squeezed and deformed by the first limiting boss until the upper end of the expansion and contraction limiting member enters the positioning hole, and the second limiting boss resets. At this time, the upper mounting seat is locked onto the telescopic assembly. This design utilizes the elastic deformation and reset of the expansion and contraction limiting member to achieve unlocking and locking of the upper mounting seat and the telescopic assembly, without the need for additional unlocking or locking power structures, resulting in a simple structure and low cost.

[0019] As a preferred technical solution, the diameter of the circle containing the edge of the second limiting boss is less than or equal to the diameter of the circle containing the edge of the first limiting boss.

[0020] The driving component also includes a locking power component, which, in the unfolded state of the umbrella rib assembly, can drive the expansion and contraction limiting component to expand and deform outward.

[0021] Specifically, after the expansion and contraction limiting member expands and deforms outward, the diameter of the circle containing the edge of the second limiting boss is greater than the diameter of the circle containing the edge of the first limiting boss. As a result, the first limiting boss restricts the second limiting boss from disengaging from the positioning hole, thereby ensuring that the upper mounting seat is reliably locked on the telescopic assembly.

[0022] As a preferred technical solution, the telescopic component includes:

[0023] A telescopic sleeve, wherein the expansion and contraction limiting member is installed on the top of the telescopic sleeve, a through hole is provided inside the telescopic sleeve, a locking power member is installed at the upper end of the through hole, and the locking power member can slide along the through hole and squeeze the expansion and contraction limiting member from the inside to expand and deform outward.

[0024] A drive shaft is at least partially inserted into the through hole. The telescopic sleeve and the drive shaft are movable relative to each other along the axial direction of the drive shaft. When the umbrella rib assembly is in the unfolded state, the drive shaft can push the locking power member upward, causing the locking power member to compress the expansion and contraction limiting member and expand and deform outward.

[0025] As a preferred technical solution, the telescopic assembly further includes a threaded sleeve, which is disposed at the lower end of the telescopic sleeve. The drive shaft is threadedly connected to the threaded sleeve, and the rotation of the drive shaft can drive the telescopic sleeve to move axially.

[0026] Preferably, the telescopic assembly further includes a telescopic power component, the output end of which is connected to the drive shaft to drive the drive shaft to rotate.

[0027] Preferably, the telescopic assembly further includes a telescopic seat, the telescopic seat having a cavity, the telescopic power component being installed at the lower end of the cavity, the drive shaft being located within the cavity, the telescopic sleeve being partially located within the cavity, and the telescopic sleeve being slidably connected to the cavity.

[0028] Optionally, the lower mounting base is mounted on the outside of the telescopic base.

[0029] Specifically, the drive shaft is threadedly connected to the threaded sleeve. On one hand, it can drive the telescopic sleeve to move axially, realizing the folding and unfolding of the umbrella rib assembly. On the other hand, in the unfolded state of the umbrella rib assembly, the drive shaft continues to drive the telescopic sleeve to move axially, thereby causing the locking power member to abut against the drive shaft and be pushed upward. This causes the locking power member to compress the expansion and contraction limiting member outward, thus locking the upper mounting base. This design utilizes the drive shaft to realize both the folding and unfolding of the umbrella rib assembly and its fixation in the unfolded state, saving power and simplifying the structure of the device, resulting in lower costs.

[0030] As a preferred technical solution, the expansion and contraction limiting member further includes a pressing boss disposed on the inner side of the upper end of the elastic claw, and the upper end of the locking power member is provided with a pressing inclined surface. When the pressing inclined surface presses the pressing boss, the second limiting boss expands outward.

[0031] Specifically, the compression ramp enables the upper end of the locking power member to form a wedge-shaped structure, and the axial movement of the locking power member can drive the expansion and contraction limiting member to expand and retract, thereby locking the upper mounting base.

[0032] As a preferred technical solution, the lower end of the locking power component is provided with a waist-shaped limiting hole, and the telescopic sleeve is provided with a first fixing hole;

[0033] The drive component also includes a fixing bolt and a fixing nut. The fixing bolt passes through the waist-shaped limiting hole and the first fixing hole, and is threadedly connected to the fixing nut to limit the locking power component to the telescopic sleeve.

[0034] Specifically, when the umbrella rib assembly is in the unfolded state, the expansion and contraction limiting member is inserted into the positioning hole. At this time, the telescopic sleeve continues to move downward, causing the drive shaft to abut against and push the locking power member upward. Since the locking power member has a waist-shaped limiting hole, the locking power member can move upward relative to the telescopic sleeve, so that the locking power member can squeeze the expansion and contraction limiting member to expand and deform outward, thereby achieving reliable locking of the upper mounting base.

[0035] As a preferred technical solution, the driving component further includes a driving seat and a driving rod. The driving seat is disposed on the telescopic assembly and located below the expansion and contraction limiting member. One end of the driving rod is hinged to the driving seat, and the other end of the driving rod is hinged to the umbrella rib assembly.

[0036] Specifically, the telescopic component drives the drive seat to move up and down, which in turn drives the umbrella rib assembly to close or open via the drive rod.

[0037] Preferably, the number of drive rods is six, and the six drive rods are evenly distributed along the circumferential direction.

[0038] As a preferred technical solution, the drive seat is provided with a second fixing hole, and the fixing bolt passes through the waist-shaped limiting hole, the first fixing hole, and the second fixing hole.

[0039] Specifically, this design enables the fixing bolts to simultaneously fix the drive seat and limit the locking power component, resulting in a more compact and simpler overall structure and lower overall cost.

[0040] Preferably, the drive seat is fixedly connected to the expansion and contraction limiting member. Further, the drive seat and the expansion and contraction limiting member are integrally formed.

[0041] The beneficial effects of the sunshade device provided by the present invention are as follows: by setting the first limiting boss and the expansion limiting member that cooperate with each other, the expansion limiting member is restricted in the positioning hole, thereby locking the upper mounting seat on the telescopic component when the umbrella rib assembly is in the unfolded state, ensuring the effective fixation of the upper and lower ends of the umbrella rib assembly, improving the stability of the umbrella rib assembly in the unfolded state, and greatly reducing the risk of deformation or breakage of the umbrella rib assembly. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A perspective view of a sunshade device provided for an embodiment (umbrella fabric and shell are not shown);

[0044] Figure 2 for Figure 1 A magnified view of a portion of location A shown;

[0045] Figure 3 A three-dimensional schematic diagram of the connection structure between the drive component and the umbrella rib component provided in the embodiment (some parts are not shown);

[0046] Figure 4 A front view schematic diagram of the connection structure between the drive component and the umbrella rib component provided in the embodiment (some parts are not shown);

[0047] Figure 5 for Figure 4 A cross-sectional three-dimensional schematic diagram along the AA direction shown;

[0048] Figure 6 A left-side view of the connection structure between the drive component and the umbrella rib component provided in the embodiment (some parts are not shown);

[0049] Figure 7 for Figure 6 A cross-sectional view along the BB direction is shown.

[0050] Figure 8 A perspective view of the upper mounting base provided in the embodiment;

[0051] Figure 9 A top view of the upper mounting bracket provided in the embodiment;

[0052] Figure 10 for Figure 9 A cross-sectional view along the CC direction is shown.

[0053] Figure 11 A perspective view of the expansion and contraction limiting member and the drive seat provided in the embodiment;

[0054] Figure 12 This is a front view of the expansion and contraction limiting member and the drive seat provided in the embodiment;

[0055] Figure 13 Provided for the embodiments Figure 12 A cross-sectional view along the DD direction is shown.

[0056] Figure 14 A perspective view of the telescopic sleeve provided in the embodiment;

[0057] Figure 15 A perspective view of the telescopic base provided in the embodiment;

[0058] Figure 16 A perspective view of the locking power component provided in the embodiment;

[0059] Figure 17 A cross-sectional schematic diagram of the locking power component provided in the embodiment;

[0060] Figure 18 A perspective view of the expansion and contraction limiting member, drive seat, and locking power member provided in the embodiment;

[0061] Figure 19 A three-dimensional schematic diagram of a sunshade device provided for an embodiment (umbrella fabric not shown).

[0062] The following are the labeling elements in the figure:

[0063] 1. Shell;

[0064] 2. Umbrella rib component; 21. Lower mounting base; 22. Upper mounting base; 221. Positioning hole; 222. First limiting boss; 23. Umbrella rib assembly; 231. First connecting rod; 232. Second connecting rod; 233. Third connecting rod; 234. Fourth connecting rod;

[0065] 3. Drive component; 31. Telescopic assembly; 311. Telescopic sleeve; 3111. Through hole; 3112. First fixing hole; 312. Drive shaft; 313. Threaded sleeve; 314. Telescopic seat; 3141. Empty cavity; 32. Expansion / contraction limiting component; 321. Elastic claw; 322. Second limiting boss; 323. Extrusion boss; 33. Locking power component; 331. Extrusion slope; 332. Waist-shaped limiting hole; 333. Guide boss; 334. Guide slope; 335. Relief groove; 34. Drive seat; 341. Second fixing hole; 35. Drive rod. Detailed Implementation

[0066] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0067] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0068] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0070] Example 1:

[0071] Embodiments of the present invention provide a sunshade device, such as... Figure 1 , Figure 2 , Figure 3 ,as well as Figures 8 to 10 As shown, the sunshade device includes an umbrella fabric, an umbrella rib assembly 2, and a drive unit 3. The umbrella fabric is used for sunshade or to block external pollutants. The umbrella rib assembly 2 supports the umbrella fabric and includes a lower mounting base 21, an upper mounting base 22, and an umbrella rib assembly 23. One end of the umbrella rib assembly 23 is hinged to the lower mounting base 21, and the other end of the umbrella rib assembly 23 is hinged to the upper mounting base 22. The upper mounting base 22 can move away from or towards the lower mounting base 21. See details... Figures 8 to 10 The upper mounting base 22 is provided with a positioning hole 221, and a first limiting boss 222 is provided at the lower end of the positioning hole 221. When the upper mounting base 22 moves to a position away from the lower mounting base 21, the umbrella rib assembly 23 is in a retracted state; when the upper mounting base 22 moves to a position close to the lower mounting base 21, the umbrella rib assembly 23 is in an unfolded state. See details. Figure 3The driving component 3 includes a telescopic assembly 31 and an expansion and contraction limiting member 32. The lower end of the telescopic assembly 31 is connected to the lower mounting base 21, and the upper end of the telescopic assembly 31 is connected to the umbrella rib assembly 23, which can drive the umbrella rib assembly 23 to switch between a closed state and an open state. The expansion and contraction limiting member 32 is provided at the upper end of the telescopic assembly 31. When the umbrella rib assembly 23 is in the open state, the expansion and contraction limiting member 32 is inserted into the positioning hole 221, and the expansion and contraction limiting member 32 can expand, so that the expansion and contraction limiting member 32 is restricted within the positioning hole 221 by the first limiting boss 222.

[0072] External pollutants can be bird droppings, insect droppings, plant leaves and fruits, etc.

[0073] In this embodiment, the unfolded state of the umbrella rib assembly 23 includes all states of partial and complete insertion of the expansion and contraction limiting member 32 into the positioning hole 221. That is, as long as at least a portion of the expansion and contraction limiting member 32 is located within the positioning hole 221, these states all belong to the unfolded state of the umbrella rib assembly 23.

[0074] Specifically, by setting a mutually cooperating first limiting boss 222 and expansion limiting member 32, the expansion limiting member 32 is restricted within the positioning hole 221. This, in the unfolded state of the umbrella rib assembly 23, locks the upper mounting base 22 onto the telescopic assembly 31, ensuring effective fixation of the upper and lower ends of the umbrella rib assembly 23, improving the stability of the umbrella rib assembly 23 in the unfolded state, and greatly reducing the risk of deformation or breakage of the umbrella rib assembly 23. In this design, on the one hand, the expansion limiting member 32, inserted into the positioning hole 221, restricts the horizontal movement of the upper mounting base 22 (front, back, left, and right); on the other hand, the mutually cooperating first limiting boss 222 and expansion limiting member 32 restrict the vertical movement of the upper mounting base 22 (up and down). The combination of these two elements reliably limits the movement of the upper mounting base 22.

[0075] In embodiments of the present invention, such as Figures 11 to 13 As shown, the expansion and contraction limiting member 32 includes a plurality of elastic claws 321 spaced apart along the circumferential direction, and a second limiting boss 322 disposed at the upper end of the elastic claws 321. Preferably, the first limiting boss 222 is a 360-degree annular boss located at the lower end of the inner wall of the positioning hole 221; or, the first limiting boss 222 is a plurality of arc-shaped bosses spaced apart located at the lower end of the inner wall of the positioning hole 221. Specifically, the first limiting boss 222 restricts the second limiting boss 322 from disengaging from the positioning hole 221, thereby ensuring that the upper mounting base 22 is reliably locked onto the telescopic assembly 31.

[0076] In one embodiment of the present invention, such as Figures 3 to 8As shown, the diameter of the circle containing the edge of the second limiting boss 322 is less than or equal to the diameter of the circle containing the edge of the first limiting boss 222; the driving component 3 also includes a locking power component 33, which can drive the expansion and contraction limiting component 32 to expand and deform outward when the umbrella rib assembly 23 is in the unfolded state.

[0077] Specifically, after the expansion and contraction limiting member 32 expands and deforms outward, the diameter of the circle containing the edge of the second limiting boss 322 is greater than the diameter of the circle containing the edge of the first limiting boss 222. As a result, the first limiting boss 222 restricts the second limiting boss 322 from disengaging from the positioning hole 221, thereby ensuring that the upper mounting base 22 is reliably locked on the telescopic assembly 31.

[0078] In one embodiment of the present invention, such as Figures 3 to 8 ,as well as Figure 14 As shown, the telescopic assembly 31 includes a telescopic sleeve 311 and a drive shaft 312. An expansion / contraction limiting member 32 is mounted on the top of the telescopic sleeve 311. A through hole 3111 is provided inside the telescopic sleeve 311. A locking power member 33 is mounted on the upper end of the through hole 3111, and the locking power member 33 can slide along the through hole 3111 and compress the expansion / contraction limiting member 32 from the inside to expand and deform outwards. The drive shaft 312 is at least partially inserted into the through hole 3111. The telescopic sleeve 311 and the drive shaft 312 can move relative to each other along the axial direction of the drive shaft 312. When the umbrella rib assembly 23 is in the unfolded state, the drive shaft 312 can push the locking power member 33 upwards, causing the locking power member 33 to compress the expansion / contraction limiting member 32 to expand and deform outwards.

[0079] In one embodiment of the present invention, the telescopic component 31 further includes a threaded sleeve 313, which is disposed at the lower end of the telescopic sleeve 311. The drive shaft 312 is threadedly connected to the threaded sleeve 313, and the rotation of the drive shaft 312 can drive the telescopic sleeve 311 to move axially.

[0080] Optionally, the telescopic assembly 31 also includes a telescopic power component, the output end of which is connected to the drive shaft 312 to drive the drive shaft 312 to rotate.

[0081] Optional, such as Figure 5 and Figure 15 As shown, the telescopic assembly 31 also includes a telescopic seat 314, which has a cavity 3141. The telescopic power component is installed at the lower end of the cavity 3141, the drive shaft 312 is located in the cavity 3141, and the telescopic sleeve 311 is partially located in the cavity 3141. The telescopic sleeve 311 is slidably connected to the cavity 3141.

[0082] Optionally, the lower mounting base 21 is mounted on the outside of the telescopic base 314. In one embodiment, the lower mounting base 21 and the telescopic base 314 are integrally formed. Of course, the lower mounting base 21 can also be fixedly connected to the telescopic base 314 via other conventional connection structures.

[0083] Specifically, the drive shaft 312 is threadedly connected to the threaded sleeve 313. On one hand, it can drive the telescopic sleeve 311 to move axially, realizing the folding and unfolding of the umbrella rib assembly 23. On the other hand, in the unfolded state of the umbrella rib assembly 23, the drive shaft 312 continues to drive the telescopic sleeve 311 to move axially, thereby causing the locking power member 33 to abut against the drive shaft 312 and be pushed upward. This causes the locking power member 33 to compress the expansion and contraction limiting member 32 to expand and deform outward, thereby locking the upper mounting seat 22. This design utilizes the drive shaft 312 to realize both the folding and unfolding of the umbrella rib assembly 23 and the fixation of the umbrella rib assembly 23 in the unfolded state, which can save power source, make the structure of the device simpler, and reduce costs.

[0084] In one embodiment of the present invention, such as Figure 7 , Figures 11 to 13 ,as well as Figures 16 to 18 As shown, the expansion and contraction limiting member 32 also includes a pressing boss 323 disposed on the inner side of the upper end of the elastic claw 321, and a pressing inclined surface 331 disposed on the upper end of the locking power member 33. When the pressing inclined surface 331 presses the pressing boss 323, the second limiting boss 322 expands outward. Specifically, the pressing inclined surface 331 enables the upper end of the locking power member 33 to form a wedge-shaped structure, thereby the axial movement of the locking power member 33 can drive the expansion and contraction limiting member 32 to expand and contract, thereby locking the upper mounting base 22.

[0085] In one embodiment of the present invention, the lower end of the locking power member 33 is provided with a waist-shaped limiting hole 332, and the telescopic sleeve 311 is provided with a first fixing hole 3112; the driving component 3 also includes a fixing bolt and a fixing nut, the fixing bolt passes through the waist-shaped limiting hole 332 and the first fixing hole 3112, and is threadedly connected to the fixing nut to limit the locking power member 33 on the telescopic sleeve 311.

[0086] Specifically, when the umbrella rib assembly 23 is in the unfolded state, the expansion and contraction limiting member 32 is inserted into the positioning hole 221. At this time, the telescopic sleeve 311 continues to move downward, causing the drive shaft 312 to abut against and push the locking power member 33 to move upward. Since the locking power member 33 has a waist-shaped limiting hole 332, the locking power member 33 can move upward relative to the telescopic sleeve 311, so that the locking power member 33 can squeeze the expansion and contraction limiting member 32 to expand and deform outward, thereby achieving reliable locking of the upper mounting base 22.

[0087] In one embodiment of the present invention, such as Figure 5 , Figures 16 to 18 As shown, the locking power component 33 also includes a guide boss 333, which is connected to the extrusion ramp 331. A guide ramp 334 is provided at the end of the guide boss 333 away from the extrusion ramp 331. Several clearance grooves 335 are spaced along the circumferential direction on the guide boss 333. These clearance grooves 335 allow a portion of the extrusion ramp 331 to be exposed. The number of clearance grooves 335 is the same as the number of elastic claws 321, and the clearance grooves 335 correspond in position to the elastic claws 321. A portion of the extrusion boss 323 is located within the clearance grooves 335, allowing the extrusion boss 323 to contact the exposed extrusion ramp 331. Specifically, by providing the guide boss 333 and the guide ramp 334, the expansion and contraction limiting component 32 can be inserted more conveniently and reliably into the positioning hole 221 of the upper mounting base 22, reducing the probability of jamming due to misalignment and thus improving the product's reliability.

[0088] In one embodiment of the present invention, such as Figure 2 and Figure 11 As shown, the driving component 3 also includes a driving seat 34 and a driving rod 35. The driving seat 34 is disposed on the telescopic assembly 31 and located below the expansion and contraction limiting member 32. One end of the driving rod 35 is hinged to the driving seat 34, and the other end of the driving rod 35 is hinged to the umbrella rib assembly 23. Specifically, the telescopic assembly 31 drives the driving seat 34 to move up and down, which in turn drives the umbrella rib assembly 23 to close or open via the driving rod 35.

[0089] Optionally, the number of drive rods 35 is six, and the six drive rods 35 are evenly distributed along the circumferential direction.

[0090] Optionally, the drive seat 34 and the expansion / contraction limiting member 32 are integrally formed. Of course, the drive seat 34 and the expansion / contraction limiting member 32 can also be fixedly connected by other conventional connection structures, or the drive seat 34 and the expansion / contraction limiting member 32 can be connected to the telescopic assembly 31 separately.

[0091] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the umbrella rib assembly 23 includes a first link 231, a second link 232, a third link 233, and a fourth link 234. The end of the drive rod 35 away from the drive seat 34 is hinged to the first link 231; one end of the first link 231 is hinged to the lower mounting seat 21, and the other end of the first link 231 is hinged to the second link 232; the end of the second link 232 away from the first link 231 is connected to the umbrella fabric; one end of the third link 233 is hinged to the upper mounting seat 22, and the other end of the third link 233 is rotatably connected to the fourth link 234; the middle part of the third link 233 is hinged to the middle part of the first link 231; the end of the fourth link 234 away from the third link 233 is hinged to the middle part of the second link 232.

[0092] In one embodiment of the present invention, a second fixing hole 341 is provided on the drive seat 34, and a fixing bolt passes through the waist-shaped limiting hole 332, the first fixing hole 3112, and the second fixing hole 341. Specifically, this design enables the fixing bolt to simultaneously fix the drive seat 34 and limit the locking power component 33, resulting in a more compact and simpler overall structure of the device and a lower overall cost.

[0093] In one embodiment of the present invention, the drive seat 34 is fixedly connected to the expansion and contraction limiting member 32. Of course, furthermore, the drive seat 34 and the expansion and contraction limiting member 32 can be an integrally formed structure.

[0094] In one embodiment of the present invention, such as Figure 19 As shown, the sunshade device also includes a housing 1, which can be installed on the roof of a car. The telescopic seat 314 is installed on the housing 1. In the retracted state, the umbrella cloth, umbrella rib component 2 and drive component 3 can be stored in the housing 1, thereby ensuring the safe driving of the car.

[0095] Example 2:

[0096] The difference between this embodiment and Implementation 1 is that:

[0097] In this embodiment, the diameter of the circle containing the edge of the second limiting boss is larger than the diameter of the circle containing the edge of the first limiting boss. Specifically, under the action of external force, when the upper mounting seat moves away from the lower mounting seat, the second limiting boss is squeezed and deformed by the first limiting boss until the upper end of the expansion and contraction limiting member disengages from the positioning hole, and the second limiting boss resets; under the action of external force, when the upper mounting seat moves towards the lower mounting seat, the second limiting boss is squeezed and deformed by the first limiting boss until the upper end of the expansion and contraction limiting member enters the positioning hole, and the second limiting boss resets, at which point the upper mounting seat is locked onto the telescopic assembly. This design utilizes the elastic deformation and reset of the expansion and contraction limiting member to achieve the unlocking and locking of the upper mounting seat and the telescopic assembly, without the need for additional unlocking or locking power structures, resulting in a simple structure and low cost.

[0098] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sunshade device, characterized in that: The sunshade device includes: Umbrella fabric, used for sunshade or to block external pollutants; An umbrella rib component for supporting the umbrella fabric includes a lower mounting base, an upper mounting base, and an umbrella rib assembly. One end of the umbrella rib assembly is hinged to the lower mounting base, and the other end of the umbrella rib assembly is hinged to the upper mounting base. The upper mounting base is movable in a direction away from or towards the lower mounting base. The upper mounting base is provided with a positioning hole, and a first limiting boss is provided at the lower end of the positioning hole. When the upper mounting base moves to a position away from the lower mounting base, the umbrella rib assembly is in a folded state; when the upper mounting base moves to a position close to the lower mounting base, the umbrella rib assembly is in an unfolded state. The driving component includes a telescopic assembly and an expansion / contraction limiting member. The lower end of the telescopic assembly is connected to the lower mounting base, and the upper end of the telescopic assembly is connected to the umbrella rib assembly, enabling the umbrella rib assembly to switch between a closed state and an open state. The expansion / contraction limiting member is provided at the upper end of the telescopic assembly. When the umbrella rib assembly is in the open state, the expansion / contraction limiting member is inserted into the positioning hole, and the expansion / contraction limiting member can expand, so that the expansion / contraction limiting member is restricted within the positioning hole by the first limiting boss.

2. A sunshade device as described in claim 1, characterized in that: The expansion and contraction limiting member includes a plurality of elastic claws spaced apart along the circumferential direction, and a second limiting boss disposed at the upper end of the elastic claws.

3. A sunshade device as described in claim 2, characterized in that: The diameter of the circle containing the edge of the second limiting boss is greater than the diameter of the circle containing the edge of the first limiting boss.

4. A sunshade device as described in claim 2, characterized in that: The diameter of the circle containing the edge of the second limiting boss is less than or equal to the diameter of the circle containing the edge of the first limiting boss. The driving component also includes a locking power component, which, in the unfolded state of the umbrella rib assembly, can drive the expansion and contraction limiting component to expand and deform outward.

5. A sunshade device as described in claim 4, characterized in that: The telescopic component includes: A telescopic sleeve, wherein the expansion and contraction limiting member is installed on the top of the telescopic sleeve, a through hole is provided inside the telescopic sleeve, a locking power member is installed at the upper end of the through hole, and the locking power member can slide along the through hole and squeeze the expansion and contraction limiting member from the inside to expand and deform outward. A drive shaft is at least partially inserted into the through hole. The telescopic sleeve and the drive shaft are movable relative to each other along the axial direction of the drive shaft. When the umbrella rib assembly is in the unfolded state, the drive shaft can push the locking power member upward, causing the locking power member to compress the expansion and contraction limiting member and expand and deform outward.

6. A sunshade device as described in claim 5, characterized in that: The telescopic assembly also includes a threaded sleeve, which is disposed at the lower end of the telescopic sleeve. The drive shaft is threadedly connected to the threaded sleeve, and the rotation of the drive shaft can drive the telescopic sleeve to move axially.

7. A sunshade device as described in any one of claims 4 to 6, characterized in that: The expansion and contraction limiting member also includes a pressing boss disposed on the inner side of the upper end of the elastic claw, and the upper end of the locking power member is provided with a pressing inclined surface. When the pressing inclined surface presses the pressing boss, the second limiting boss expands outward.

8. A sunshade device as described in claim 5, characterized in that: The lower end of the locking power component is provided with a waist-shaped limiting hole, and the telescopic sleeve is provided with a first fixing hole; The drive component also includes a fixing bolt and a fixing nut. The fixing bolt passes through the waist-shaped limiting hole and the first fixing hole, and is threadedly connected to the fixing nut to limit the locking power component to the telescopic sleeve.

9. A sunshade device as described in claim 8, characterized in that: The driving component further includes a driving seat and a driving rod. The driving seat is disposed on the telescopic assembly and located below the expansion and contraction limiting member. One end of the driving rod is hinged to the driving seat, and the other end of the driving rod is hinged to the umbrella rib assembly.

10. A sunshade device as described in claim 9, characterized in that: The drive seat has a second fixing hole, and the fixing bolt passes through the waist-shaped limiting hole, the first fixing hole, and the second fixing hole.

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