A linkage structure and sunshade device

Abstract

The present application provides a linkage structure, relating to the field of storage boxes, including a frame, a connecting mechanism, a driving mechanism and a linkage mechanism; the frame includes a box body and a box cover that are movably connected, the box body is provided with an open storage slot, and the box cover is used to seal the slot of the storage slot; the driving mechanism is used to drive the connection mechanism to move, so as to drive the lifted member to switch between a first position at least partially accommodated in the storage slot and a second position outside the storage slot, when the driving mechanism drives the lifted member to switch from the first position to the second position, the lifted member pushes the box cover away from the box body; the linkage mechanism connects the box cover and the lifted member, when the driving mechanism drives the lifted member to switch from the second position to the first position, the linkage mechanism drives the box cover to cover the slot of the storage slot; the present application also provides a sunshade device, which mainly solves the problem of high cost of existing automatic storage boxes.

Description

Technical Field

[0001] The present application belongs to the field of storage boxes, and more specifically, relates to a linkage structure and a sunshade device. Background Art

[0002] Some products need to be stored in a storage slot in a box. When in use, the box lid must be opened to allow the product to move from the slot to a designated location for use. When the product is no longer in use, the lid can only be closed after the product is returned to the slot. To automate this process, existing technologies typically use two motors: one to drive the product from the slot to a designated location or back into the slot, and the other to open or close the lid. Due to the large number of motors, existing automated storage boxes are bulky and costly, significantly reducing consumer interest in certain high-demand products. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a linkage structure and a sunshade device, which mainly solve the technical problem of high cost existing in existing automatic storage boxes.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a linkage structure for connecting the object to be lifted, which includes a frame, a connecting mechanism, a driving mechanism and a linkage mechanism;

[0005] The frame includes a box body and a box cover that are movably connected. The box body is provided with an open receiving groove for receiving the object to be lifted, and the box cover is used to cover the notch of the receiving groove.

[0006] The connecting mechanism connects the driving mechanism and the object to be lifted, and the driving mechanism is used to drive the connecting mechanism to move, so as to drive the object to be lifted to switch between a first position in which the object is at least partially accommodated in the receiving groove and a second position outside the receiving groove. When the driving mechanism drives the connecting mechanism to drive the object to be lifted to switch from the first position to the second position, the connecting mechanism can drive the object to be lifted to push the box cover away from the box body.

[0007] The linkage mechanism connects the box cover and the piece to be lifted, or the linkage mechanism is connected to the box cover and the connecting mechanism. When the driving mechanism drives the connecting mechanism to drive the piece to be lifted to switch from the second position to the first position, the piece to be lifted or the connecting mechanism can drive the box cover toward the notch of the storage slot through the linkage mechanism.

[0008] In one embodiment, the linkage mechanism includes a linkage rope, one end of the linkage rope is connected to the object to be lifted or the connecting mechanism, and the other end of the linkage rope is connected to the box cover.

[0009] In one embodiment, the connecting mechanism includes a base rotatably connected to the box and connected to the lifted object, and the linkage mechanism also includes a pulley connected to the base, the center axis of the pulley coincides with or is parallel to the rotation axis of the base relative to the box, and the linkage rope is wrapped around the wheel surface of the pulley.

[0010] In one embodiment, the box cover is rotatably connected to the box body, a protrusion is provided on the inner side of the box cover, a connecting portion and a limiting structure for limiting the extension path of the linkage rope are provided on the protrusion, and one end of the linkage rope is connected to the connecting portion.

[0011] In one embodiment, the raised block has a supporting surface extending away from the box cover, the connecting portion is provided on the supporting surface and close to the box cover, the limiting structure is provided on the supporting surface and extends in the same direction as the supporting surface, and the supporting surface is used to support the tensioning of the linkage rope when the center of gravity of the box cover is misaligned with the storage slot in the vertical direction.

[0012] In one embodiment, the supporting surface is an arc surface surrounding the rotation axis of the box cover, the limiting structure is a limiting protrusion opened on both sides of the supporting surface, the two limiting protrusions form a limiting groove, the limiting groove extends in the same direction as the supporting surface, and the connecting part is located in the extension direction of the limiting groove.

[0013] In one embodiment, the frame further includes a limiting column connected to the box body, and the limiting column is used to tension the linkage rope when the center of gravity of the box cover is misaligned with the storage slot in the vertical direction.

[0014] In one embodiment, the frame also includes a limit baffle connected to the box body, the limit column has a limit surface for supporting the linkage rope, and the limit baffle is spaced apart and facing the limit surface to form a limit channel together with the limit surface for the linkage rope to pass through.

[0015] In one embodiment, the limiting column is rotatably connected to the box body, and the rotation axis of the limiting column relative to the box body is not colinear with the extension direction of the linkage rope, so that when the linkage rope abuts against the limiting column and is in a tensioned state, the linkage rope can drive the limiting column to rotate relative to the box body.

[0016] The present application also provides a sunshade device, which adopts the linkage structure of any of the above technical solutions.

[0017] Compared with the prior art, the linkage structure provided by this application has at least the following beneficial effects:

[0018] When the driving mechanism drives the member to be lifted to move from the first position to the second position, the member to be lifted can push the box cover away from the box body. When the member to be lifted needs to be stored, the driving mechanism can drive the member to be lifted to move from the second position to the first position. In the process of the member to be lifted moving from the second position to the first position, the member to be lifted can drive the box cover to close the box body through the linkage mechanism. By adopting the linkage structure of the present technical solution, only one driving mechanism is needed to realize the automatic opening or closing of the box cover while the member to be lifted moves, which greatly reduces the manufacturing cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A schematic structural diagram of a sunshade device provided in an embodiment of the present application;

[0021] Figure 2 for Figure 1 The schematic diagram of the structure of the sunshade device shown is when the parasol is raised;

[0022] Figure 3 for Figure 1 The structure diagram of the sunshade device shown is after the parasol is raised into place;

[0023] Figure 4 for Figure 3 A schematic structural diagram of the sunshade device when the parasol is fully unfolded;

[0024] Figure 5 for Figure 3 A partial enlarged view of point A in the middle;

[0025] Figure 6 A schematic diagram of the structure of a driving mechanism in a sunshade device provided in an embodiment of the present application;

[0026] Figure 7 for Figure 6 An exploded view of the drive mechanism shown;

[0027] Figure 8 for Figure 4 The structure diagram of the sunshade device shown is after the sunshade cloth is hidden;

[0028] Figure 9 for Figure 8 A partial enlarged view of point A in the middle;

[0029] Figure 10 This is an exploded view of the structure of the parasol in the sunshade device provided in an embodiment of the present application after the sunshade cloth is hidden;

[0030] Figure 11 for Figure 10 An exploded view of the parasol shown with some of its rib components hidden;

[0031] Figure 12 for Figure 11 An exploded view of the parasol shown at another angle.

[0032] Among them, the reference numerals in the figures are:

[0033] 1. Frame; 11. Box body; 111. Storage slot; 12. Box cover; 121. Raised block; 1211. Support surface; 122. Connecting portion; 1221. Connecting hole; 123. Limiting structure; 124. Limiting slot; 13. Connecting rod; 14. Box cover; 15. Rotating shaft; 16. Hinge; 17. Limiting column; 171. Limiting surface; 18. Limiting baffle; 181. Limiting channel;

[0034] 2. Parasol;

[0035] 21. Base;

[0036] 22. Umbrella body; 221. Sunshade cloth; 222. Telescopic assembly; 2221. Nut seat; 22211. First body; 222111. Connecting end face; 22212. Second body; 2222. Telescopic rod; 22221. Avoidance channel; 223. Rib assembly; 2231. Rotating seat; 22311. Middle hole; 2232. Lower mounting seat; 2233. Upper mounting seat; 22331. Positioning hole; 2234. Driving rod; 2235. Connecting rod assembly; 22351. First connecting rod; 22352. Second connecting rod; 22353. Third connecting rod; 22354. Fourth connecting rod; 2236. Bearing; 2237. Axle pin;

[0037] 23. Driving unit; 231. Fixing seat; 232. Driving member; 233. Rotating rod; 234. Blocking member;

[0038] 3. Driving mechanism; 31. Adapter block; 32. Driving module; 321. Driver; 3211. Motor; 3212. Reducer; 322. Screw; 323. Nut block; 3231. First body; 32311. Connecting surface; 3232. Second body; 324. Limiting piece; 33. Push rod; 331. Connecting hole; 332. Avoidance hole; 34. Guide seat; 341. Guide hole; 35. Rotation pin; 36. Knob;

[0039] 4. Linkage mechanism; 41. Linkage rope; 42. Pulley; 421. Wheel surface. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0041] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms, "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0043] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0044] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0045] Please also refer to Figure 1-Figure 5 The sunshade device provided in the embodiment of the present application is now described. The sunshade device includes a frame 1, a parasol 2 and a driving mechanism 3.

[0046] The frame 1 includes a box body 11 and a box cover 12. The box body 11 is provided with an open storage slot 111. The box cover 12 is rotatably connected to the box body 11 via a hinge 16. In other words, when the box cover 12 rotates relative to the box body 11, the position of the projection of the center of gravity of the box cover 12 on the storage slot 111 in the vertical direction will change, and the box cover 12 is used to cover the notch of the storage slot 111. In addition, the parasol 2 is rotatably connected to the box body 11, so that the parasol 2 can be Figure 1 As shown, it is stored in the storage slot 111, or it can be stored in the storage slot 111 as shown. Figure 3 As shown, it stands away from the storage slot 111, for the convenience of subsequent explanation, Figure 1 The position where the parasol 2 is stored in the storage slot 111 is defined as the first position of the parasol 2. Figure 3 The position of the middle parasol 2 away from the storage slot 111 is defined as the second position of the parasol 2. Figure 5 A rotating shaft 15 is fixed to the housing 11, and the parasol 2 is sleeved on the outer wall of the rotating shaft 15 and can rotate around the axis of the rotating shaft 15. Among them, the driving mechanism 3 connects the housing 11 and the parasol 2, and the driving mechanism 3 serves as the power to drive the parasol 2 to rotate relative to the housing 11. Figure 4 The parasol 2 is shown in an unfolded state, at which time the parasol 2 can be used for sun protection.

[0047] Furthermore, after the box cover 12 covers the storage slot 111, a magnet structure can be used to make the box cover 12 attracted to the box body 11, and when the driving mechanism 3 drives the parasol 2 to Figure 1 The first position shown is rotated to Figure 3 In the second position shown, the parasol 2 can drive the box cover 12 to break away from the magnetic force on the box body 11 and gradually open; and, when the driving mechanism 3 drives the parasol 2 in Figure 3 The second position shown falls back to Figure 1 In the first position shown, the parasol 2 drives the box cover 12 toward the notch of the storage groove 111 through the linkage mechanism 4 and automatically closes.

[0048] See also Figure 5 In one embodiment, the linkage mechanism 4 includes a linkage rope 41 ( Figure 5 The dotted line in the figure is a linkage rope 41), one end of which is connected to the parasol 2, and the other end of which is connected to the box cover 12. Figure 3 The second position shown falls back to Figure 1 When in the first position shown, the parasol 2 can realize the function of automatically covering the storage slot 111 with the box cover 12 by pulling the linkage rope 41 .

[0049] See also Figure 5In the embodiment of the present application, the linkage mechanism 4 includes a linkage rope 41 and a pulley 42. The pulley 42 is sleeved on the rotating shaft 15 and fixed on the base 21 of the parasol 2. Therefore, the pulley 42 can also rotate around the axis of the rotating shaft 15. One end of the linkage rope 41 is fixed to the pulley 42 and wound around the wheel surface 421 of the pulley 42. The other end of the linkage rope 41 is also fixed to the box cover 12. When the driving mechanism 3 drives the parasol 2 to Figure 3 The second position shown falls back to Figure 1 During the process of the first position shown in FIG. 1 , the linkage rope 41 is gradually wound around the rope pulley 42. Since the box cover 12 is pulled by the linkage rope 41, the box cover 12 is pulled by the linkage rope 41, and then the box cover 12 covers the notch of the storage groove 111. When the driving mechanism 3 drives the parasol 2 to Figure 1 The first position shown is rotated to Figure 3 During the second position shown, since the linkage rope 41 gradually winds off the pulley 42, the parasol 2 can smoothly push open the box cover 12. When the parasol 2 pushes the box cover 12 to a certain position, the box cover 12 will gradually open the storage slot 111 due to its own gravity.

[0050] For details, please refer to Figure 3 and Figure 5 A raised block 121 is provided on the inner side of the lid 12. A connecting portion 122 and a limiting structure 123 are provided on the raised block 121. The connecting portion 122 is used to fix one end of the linkage rope 41, and the limiting structure 123 is used to limit the extension path of the linkage rope 41, preventing the linkage rope 41 from escaping from the raised block 121. In other words, as one end of the linkage rope 41 gradually unwinds from the rope pulley 42, the raised block 121 on the gradually opening lid 12 can drive the other end of the linkage rope 41 to be gradually pulled out in the direction of the lid 12 opening, so that the linkage rope 41 is kept in a tensioned state.

[0051] For more details, please refer to Figure 3 and Figure 5The raised block 121 has a support surface 1211 that is distal from the lid 12. This support surface 1211 is a partially arcuate surface whose center lies on the rotation axis of the lid 12 (i.e., the rotation axis of the hinge 16). The radius from the support surface 1211 to the rotation axis of the lid 12 is equal to or slightly greater than the radius from the wheel surface 421 to the rotation axis of the parasol 2 relative to the frame 1 (i.e., the axis of the rotating shaft 15). In this way, when one end of the linkage rope 41 winds a distance D1 from the pulley 42 per unit time, the raised block 121 on the gradually opening lid 12 can drive the other end of the linkage rope 41 to pull a distance equal to or slightly greater than D1 per unit time in the direction of the lid 12's opening, thereby ensuring that the linkage rope 41 remains taut even when the lid 12 is open. In addition, the connecting portion 122 is disposed on the supporting surface 1211 and close to the inner side surface of the box cover 12 , and the limiting structure 123 is disposed around the supporting surface 1211 and extends in the same direction as the supporting surface 1211 .

[0052] In this embodiment, please refer to Figure 5 The limiting structure 123 is preferably a limiting protrusion arranged on both sides of the supporting surface 1211, and a limiting groove 124 is formed between the limiting protrusions on both sides, and the connecting part 122 is located in the extension direction of the limiting groove 124, and a connecting hole 1221 is provided on the connecting part 122, one end of the connecting hole 1221 is connected to the limiting groove 124 and gradually extends toward the inner side of the box cover 12, and one end of the linkage rope 41 is inserted and fixed in the connecting hole 1221.

[0053] See also Figure 5The central axis of the rotating shaft 15 and the rotation axis of the hinge 16 are not in a straight line. Therefore, the posture of the linkage rope 41 will change during the process of retraction and extension, which may cause the linkage rope 41 to get stuck on other components. To this end, the frame 1 of this embodiment also includes a limiting column 17 connected to the box body 11. The central axis of the limiting column 17 is vertically arranged. In other words, the central axis of the limiting column 17 is perpendicular to the rotation axis of the rotating shaft 15 and the hinge 16 respectively. The limiting column 17 is used to tension the linkage rope 41. When the linkage rope 41 is retracted and extended, the linkage rope 41 can abut against the limiting surface 171 on the outer side of the limiting column 17. Furthermore, the limiting post 17 can also limit the posture of the linkage rope 41. Specifically, due to the provision of the limiting post 17, a portion of the linkage rope 41 can be extended linearly to the wheel surface 421, and another portion of the linkage rope 41 can be extended linearly to the connecting portion 122, thereby ensuring that the posture of the linkage rope 41 will hardly change during the retraction and extension process, thereby avoiding the problem of the linkage rope 41 getting stuck. In addition, the limiting post 17 can also be rotatably connected to the box body 11. When the linkage rope 41 is retracted and extended, the limiting surface 171 on the outer side of the limiting post 17 is subjected to the static friction force exerted by the linkage rope 41 and rotates relative to the box body 11. Therefore, at this time, the friction between the linkage rope 41 and the limiting post 17 can be greatly reduced.

[0054] See also Figure 5 The frame 1 of this embodiment also includes a limit baffle 18 fixed on the box body 11. The limit baffle 18 is opposite to the limit surface 171 and is spaced apart from the limit column 17, so that a limit channel 181 is formed between the limit column 17 and the limit baffle 18. The limit channel 181 is for the linkage rope 41 to pass through. The limit baffle 18 can prevent the linkage rope 41 from moving away from the limit surface 171. At this time, the reliability of the linkage rope 41 during the retraction and extension process can be further ensured, thereby further avoiding the problem of the linkage rope 41 and other components being stuck.

[0055] It should be noted that the linkage structure described above, which enables the opening and closing of the lid 12 when the parasol 2 switches between the first and second positions relative to the frame 1, is not limited to the parasol field. This linkage structure can also be used to link the opening and closing of the lid 12 when other lifting objects move on the frame 1. Specifically, in other embodiments, the lifting object is connected to the frame 1 and connected to the drive mechanism 3 via a connecting mechanism. When the drive mechanism 3 drives the connecting mechanism to move, the drive mechanism 3 can drive the lifting object to switch between a position within the storage slot 111 and a position outside the storage slot 111. In this embodiment, the connecting mechanism is the base 21, and the lifting object is the umbrella body 22.

[0056] Please also refer to Figure 1 and Figure 3The frame 1 also includes a connecting rod 13 and a box cover 14. The connecting rod 13 is fixed to the bottom of the box body 11. The connecting rod 13 is used to connect to the original fixing rod at the top position of the car, so that the frame 1 as a whole can be firmly fixed on the top of the car. When the parasol 2 is in the expanded state, the parasol 2 can cover the front windshield and the rear windshield of the car. Of course, the frame 1 does not need to include the connecting rod 13. The connecting rod 13 can be purchased by the user as an existing part. The box cover 14 is fixed to the front of the box body 11. The box cover 14 is used to cover the drive mechanism 3, so that when the parasol 2 is stored in the storage slot 111, it can prevent external factors from damaging the drive mechanism 3. When the box cover 14 is removed, it is convenient to maintain the drive mechanism 3 and also convenient to manually operate the drive mechanism 3.

[0057] Please also refer to Figure 3 、 Figure 6 and Figure 7 The driving mechanism 3 of this embodiment mainly includes a switching block 31 , a driving module 32 , a push rod 33 and a guide seat 34 .

[0058] Among them, the driving module 32 is installed on the adapter block 31 and connected to the push rod 33. The driving module 32 can drive the push rod 33 to move closer to or away from the adapter block 31. Secondly, the adapter block 31 is hinged to the box body 11, and the end of the push rod 33 away from the adapter block 31 is rotatably connected to the parasol 2, and the connection between the push rod 33 and the parasol 2 is spaced apart from the rotating shaft 15. When the push rod 33 moves closer to or away from the adapter block 31 under the drive of the driving module 32, the push rod 33 can drive the parasol 2 to rotate around the axis of the rotating shaft 15, and the guide seat 34 is connected to the driving module 32 and is provided with a guide hole 341. The extension direction of the guide hole 341 is the same as the length direction of the push rod 33. The push rod 33 is inserted into the guide hole 341 and can move along the axis of the guide hole 341. The guide seat 34 is used to improve the movement accuracy of the push rod 33. For details, please refer to Figure 5 and Figure 6 The push rod 33 is provided with an insertion hole 331, into which a rotating pin 35 is inserted. The rotating pin 35 is fixed to the bottom end of the parasol 2, and the push rod 33 can rotate around the rotating pin 35. The push rod 33 is used to reciprocate and extend to switch the parasol 2 between the first position and the second position, which can reduce the torque required by the driving module 32.

[0059] Please also refer to Figure 6 and Figure 7The drive module 32 specifically includes a driver 321, a screw 322, a nut block 323, and a limit plate 324. The driver 321 is connected to the adapter block 31 and the guide base 34. The screw 322 is connected to the output end of the driver 321 and is received in the guide hole 341. The nut block 323 is screwed onto the screw 322, and the push rod 33 is fixed to the nut block 323. During operation, the driver 321 can drive the screw 322 to rotate, and the screw 322 drives the nut block 323 and the push rod 33 to reciprocate and extend along the length of the screw 322, thereby moving closer to or away from the adapter block 31. The limiting plate 324 is fixed to the end of the screw 322 away from the driver 321 to limit the nut block 323 from separating from the screw 322. The above-mentioned limiting plate 324 can also be used to limit the position of the parasol 2 in the second position, that is, when the nut block 323 abuts against the limiting plate 324, the parasol 2 reaches the second position, and there is no need to set up other additional limiting parts to limit the parasol 2 when it reaches the second position.

[0060] Please refer again Figure 7 The push rod 33 has an escape hole 332 at one end facing the driver 321. The depth of the escape hole 332 is the same as the length of the screw rod 322. Parts of the screw rod 322, the nut block 323, and the limiting plate 324 are all accommodated in the escape hole 332. In addition, the nut block 323 specifically includes a first body 3231 and a second body 3232 connected to each other. The first body 3231 has a connecting surface 32311 on the side facing away from the driver 321. The second body 3232 is connected to the connecting surface 32311. The push rod 33 abuts against the connecting surface 32311 and is fixedly connected to the first body 3231. The second body 3232 is accommodated in the escape hole 332. Moreover, both the first body 3231 and the second body 3232 may be provided with threaded holes that are screwed to the screw rod 322. The limiting plate 324 can prevent the second body 3232 from separating from the screw rod 322.

[0061] In this embodiment, please refer to Figure 6 and Figure 7 The driver 321 specifically includes a motor 3211 and a reducer 3212. The output shaft of the motor 3211 is connected to the input end of the reducer 3212. The reducer 3212 is connected to one end of the screw 322. The reducer 3212 is fixed to the adapter block 31. During operation, the power of the motor 3211 can be transmitted to the screw 322 through the reducer 3212, thereby driving the screw 322 to rotate.

[0062] Please also refer to Figure 6 and Figure 7 The driving mechanism 3 further includes a knob 36, which is fixed to one end of the screw rod 322. When the knob 36 is manually rotated, the screw rod 322 can also be driven to rotate.

[0063] See also Figure 3 The driving mechanism 3 further includes a power storage module (not shown in the figure), which is fixed to the box body 11 and is used to provide power to the driver 321. The power storage module can be a lithium battery power source or a solar module, etc.

[0064] In summary, using screw 322 to drive push rod 33 for telescopic movement not only reduces the torque required by motor 3211, thereby reducing the size and cost of motor 3211, but also prevents push rod 33 from spontaneously moving along the axial direction of screw 322. Specifically, parasol 2 in the second position will not spontaneously fall back to the first position due to gravity, allowing motor 3211 to stop outputting power when parasol 2 is in the second position. The mating relationship between screw 322 and nut block 323 forms a reverse self-locking structure, allowing parasol 2 to remain securely fixed in the second position even when motor 3211 is not outputting power. Furthermore, combined with the design of knob 36, when the power storage module is low on charge or motor 3211 malfunctions, the parasol 2 can be manually switched between the first and second positions using knob 36, ensuring that the parasol 2 remains securely fixed in the second position.

[0065] The specific structure of the parasol 2 is described in detail below with reference to the accompanying drawings.

[0066] Please also refer to Figures 8-12 The parasol 2 includes a base 21, a body 22, and a drive unit 23. The base 21 rotates relative to the frame 1 about the rotation axis 15, while the body 22 is rotationally connected to the base 21. The drive unit 23 is fixed to the base 21 and is used to drive the body 22 to rotate relative to the base 21. Furthermore, the axis of rotation of the body 22 relative to the base 21 and the axis of rotation of the base 21 relative to the frame 1 (i.e., the axis of the rotation axis 15) are perpendicular to each other.

[0067] For details, please refer to Figure 4 、 Figures 8-12 The umbrella body 22 further includes a sunshade cloth 221, a telescopic assembly 222, and an umbrella rib assembly 223. The umbrella rib assembly 223 is connected to the sunshade cloth 221 and has an expanded state in which the sunshade cloth 221 is opened, and a collapsed state in which the sunshade cloth 221 is collapsed. Furthermore, the telescopic assembly 222 is connected to the umbrella rib assembly 223 and is rotatably connected to the base 21. The aforementioned drive unit 23 is connected to the telescopic assembly 222 and can drive the telescopic assembly 222 to rotate relative to the base 21, thereby driving the umbrella rib assembly 223, the sunshade cloth 221, and the telescopic assembly 222 to rotate synchronously. The drive unit 23 can also drive the telescopic assembly 222 away from or closer to the base 21, so that the umbrella rib assembly 223 is in an expanded state or a collapsed state.

[0068] For more details, please refer to Figures 8-12 The driving unit 23 includes a fixed base 231, a driving member 232, a rotating rod 233, and a blocking member 234. The fixed base 231 is fixed to the base 21, and the driving member 232 is fixed to the fixed base 231. The driving member 232 is preferably a motor. The rotating rod 233 is preferably a screw with an external thread. One end of the rotating rod 233 is connected to the output shaft of the driving member 232. The rotating rod 233 is rotatably connected to the fixed base 231 via a bearing. When the driving member 232 is working, it can drive the rotating rod 233 to rotate. The telescopic assembly 222 is screwed to the rotating rod 233. When the rotating rod 233 rotates, it can drive the telescopic assembly 222 to move closer to or away from the base 21. The blocking member 234 is fixed to the top of the rotating rod 233. The blocking member 234 is used to limit the telescopic assembly 222 from separating from the rotating rod 233. When the telescopic assembly 222 abuts against the blocking member 234, the telescopic assembly 222 cannot continue to move along the axial direction of the rotating rod 233. At this time, the rotating rod 233 will be able to drive the telescopic assembly 222 to rotate synchronously.

[0069] For further information, please refer to Figures 8-12 The telescopic assembly 222 includes a nut seat 2221 and a telescopic rod 2222. The nut seat 2221 is threaded onto the rotating rod 233, while the telescopic rod 2222 is fixed to the nut seat 2221. Rotation of the rotating rod 233 drives the nut seat 2221 and the telescopic rod 2222 toward or away from the base 21. The aforementioned stopper 234 is disposed on the side of the nut seat 2221 facing away from the base 21 and is used to prevent the nut seat 2221 from separating from the rotating rod 233.

[0070] For further information, please also refer to Figure 11 and Figure 12 The nut seat 2221 includes a first body 22211 and a second body 22212. The first body 22211 has a connecting end surface 222111 on the side facing the telescopic rod 2222, and the second body 22212 is connected to this connecting end surface 222111. Furthermore, an escape channel 22221 is defined on the end of the telescopic rod 2222 facing the nut seat 2221. This escape channel 22221 extends in the same direction as the length of the rotating rod 233. The second body 22212, a portion of the rotating rod 233, and the blocking member 234 are all accommodated within this escape channel 22221. Furthermore, the telescopic rod 2222 abuts the connecting end surface 222111 and is fixedly connected to the first body 22211. A threaded hole that is threadedly connected to the rotating rod 233 can be provided on either the first body 22211 or the second body 22212.

[0071] For more details, please refer to Figures 8-12The rib assembly 223 includes a rotating seat 2231, a lower mounting seat 2232, an upper mounting seat 2233, a plurality of driving rods 2234 and a plurality of connecting rod assemblies 2235.

[0072] The rotating seat 2231 is rotatably connected to the fixed seat 231. Since the fixed seat 231 is fixed to the base 21, the rotating seat 2231 is rotatably connected to the base 21. Specifically, two bearings 2236 are sleeved on the fixed seat 231. The inner diameter of the bearings 2236 is fixed to the fixed seat 231, and the outer diameter of the bearings 2236 is fixed to the rotating seat 2231, so that the rotating seat 2231 can rotate relative to the fixed seat 231. At the same time, since the rotating seat 2231 is connected to the telescopic rod 2222 via each connecting rod assembly 2235, the rotation of the telescopic rod 2222 will drive the rotating seat 2231 to rotate through each connecting rod assembly 2235, thereby driving the sunshade cloth 221 to rotate. In other words, when the telescopic rod 2222 rotates synchronously with the rotating rod 233, the rotating seat 2231, the lower mounting seat 2232, the upper mounting seat 2233, the multiple driving rods 2234, the multiple connecting rod assemblies 2235 and the sunshade cloth 221 will all rotate synchronously with the telescopic rod 2222.

[0073] Furthermore, the rotating base 2231 defines a central hole 22311 extending in the direction of movement of the telescopic rod 2222. The telescopic rod 2222 is inserted into the central hole 22311 and can slide along the wall of the central hole 22311. In other words, in addition to connecting the connecting rod assembly 2235, the rotating base 2231 also serves as a guide for the telescopic rod 2222.

[0074] Among them, the lower mounting seat 2232 is fixed on the telescopic rod 2222 through the axle pin 2237. The lower mounting seat 2232 also serves to connect the connecting rod assembly 2235. When the telescopic rod 2222 approaches or moves away from the base 21, the lower mounting seat 2232 can drive the connecting rod assembly 2235 to expand outward or retract inward, so that the sunshade cloth 221 connected to the connecting rod assembly 2235 can be expanded or retracted.

[0075] The upper mounting seat 2233 also serves as a connection to the connecting rod assembly 2235. It is located on the side of the lower mounting seat 2232 facing away from the base 21, and the line connecting the upper mounting seat 2233 and the lower mounting seat 2232 is aligned with the direction of movement of the telescopic rod 2222. Specifically, when the upper mounting seat 2233 and the lower mounting seat 2232 move closer together, the connecting rod assembly 2235 is extended; when the upper mounting seat 2233 and the lower mounting seat 2232 move away from each other, the connecting rod assembly 2235 is retracted. Furthermore, when the upper mounting seat 2233 and the lower mounting seat 2232 are in close proximity, the top of the telescopic rod 2222 inserts into the positioning hole 22331 on the upper mounting seat 2233, thereby ensuring a high degree of relative positioning accuracy between the upper mounting seat 2233 and the lower mounting seat 2232.

[0076] Among them, one end of the driving rod 2234 is hinged to the lower mounting seat 2232, and the other end of the driving rod 2234 is hinged to one of the connecting rod assemblies 2235. When the lower mounting seat 2232 approaches or moves away from the base 21, the driving rod 2234 can drive the connecting rod assembly 2235 to expand outward or retract inward.

[0077] The connecting rod assembly 2235 includes a first connecting rod 22351, a second connecting rod 22352, a third connecting rod 22353, and a fourth connecting rod 22354. One end of the first connecting rod 22351 is hinged to the rotating base 2231, the other end of the first connecting rod 22351 is hinged to the second connecting rod 22352, the end of the second connecting rod 22352 away from the first connecting rod 22351 is connected to the sunshade cloth 221, one end of the third connecting rod 22353 is hinged to the upper mounting base 2233, the other end of the third connecting rod 22353 is hinged to the fourth connecting rod 22354, and the end of the fourth connecting rod 22354 away from the third connecting rod 22353 is hinged to the middle portion of the second connecting rod 22352. The aforementioned driving rod 2234 is hinged to one of the first connecting rods 22351.

[0078] The specific working principle of the parasol 2 is as follows: when the parasol 2 is in the second position, the driving member 232 drives the rotating rod 233 to rotate relative to the base 21. At this time, the telescopic rod 2222 gradually approaches the base 21 (i.e., moves downward) under the drive of the nut seat 2221. At the same time, since the lower mounting seat 2232 gradually approaches the base 21 following the telescopic rod 2222, the driving rod 2234 gradually expands the first connecting rod 22351 and the second connecting rod 22352. , the third connecting rod 22353 and the fourth connecting rod 22354 are gradually stretched outward under the drive of the first connecting rod 22351. At the same time, the upper mounting seat 2233 is gradually approached to the lower mounting seat 2232 under the drive of several third connecting rods 22353. When the sunshade cloth 221 is completely stretched out, the top of the telescopic rod 2222 is inserted into the positioning hole 22331 of the upper mounting seat 2233 to ensure a good relative position between the umbrella rib assembly 223 and the telescopic rod 2222. When the umbrella needs to be folded, the driving member 232 drives the rotating rod 233 to rotate in the opposite direction. At this time, the telescopic rod 2222 gradually moves away from the base 21 (i.e., moves upward) under the drive of the nut seat 2221. At the same time, the lower mounting seat 2232 follows the telescopic rod 2222 and gradually moves away from the base 21, so that the driving rod 2234 gradually retracts inward. The driving rod 2234 pulls the first connecting rod 22351 to gradually retract inward. The first connecting rod 22351 drives the second connecting rod 22352, the third connecting rod 22353 and the fourth connecting rod 22354 to gradually retract inward. At the same time, the upper mounting seat 2233 is also driven by several third connecting rods 22353 to gradually move away from the lower mounting seat 2232. When the nut seat 2221 hits the blocking member 234, the sunshade cloth 221 can be folded up.

[0079] Please also refer to Figure 1 and Figure 3 , parasol 2 in Figure 3 The second position shown is rotated to Figure 1 After being stored in the first position in the storage groove 111 as shown, since the sunshade cloth 221 is a soft component, part of the sunshade cloth 221 will be exposed in the storage groove 111 at this time. Although the box cover 12 has covered the storage groove 111 at this time, the rotating rod 233 can be driven to rotate by the driving member 232. Since the nut seat 2221 is blocked by the blocking member 234 and cannot move further away from the base 21, the nut seat 2221 and the telescopic rod 2222 will rotate synchronously with the rotation of the rotating rod 233. Since the telescopic rod 2222 is connected to the sunshade cloth 221 through the umbrella rib assembly 223, the umbrella rib assembly 223 and the sunshade cloth 221 will also rotate synchronously with the rotation of the telescopic rod 2222, and finally drive the sunshade cloth 221 to be completely stored in the storage groove 111 through the gap between the box cover 12 and the box body 11.

[0080] The above is merely a preferred embodiment of the present invention and specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A linkage structure for connecting a piece to be lifted, characterized in that: It includes a frame, a connecting mechanism, a driving mechanism and a linkage mechanism; The frame includes a box body and a box cover that are movably connected. The box body is provided with an open receiving groove for receiving the object to be lifted, and the box cover is used to cover the notch of the receiving groove. The connecting mechanism connects the driving mechanism and the object to be lifted, and the driving mechanism is used to drive the connecting mechanism to move, so as to drive the object to be lifted to switch between a first position in which the object is at least partially accommodated in the receiving groove and a second position outside the receiving groove. When the driving mechanism drives the connecting mechanism to drive the object to be lifted to switch from the first position to the second position, the connecting mechanism can drive the object to be lifted to push the box cover away from the box body. The linkage mechanism is connected to the box cover and the connecting mechanism. When the driving mechanism drives the connecting mechanism to drive the lifting member to switch from the second position to the first position, the connecting mechanism can drive the box cover to automatically close toward the notch of the storage slot through the linkage mechanism. The linkage mechanism includes a linkage rope, one end of which is connected to the connection mechanism, and the other end of which is connected to the box cover; The connecting mechanism includes a base rotatably connected to the box and connected to the object to be lifted, and the linkage mechanism also includes a pulley connected to the base, the central axis of the pulley coincides with or is parallel to the rotation axis of the base relative to the box, and the linkage rope is wound around the wheel surface of the pulley; The box cover is rotatably connected to the box body, and a protrusion is provided on the inner side of the box cover. The protrusion is provided with a connecting portion and a limiting structure for limiting the extension path of the linkage rope, and one end of the linkage rope is connected to the connecting portion; The protruding block has a supporting surface extending away from the box cover, the connecting portion is provided on the supporting surface and close to the box cover, and the limiting structure is provided on the supporting surface and extends in the same direction as the supporting surface; The support surface is an arc surface surrounding the rotation axis of the box cover, and the radius from the support surface to the rotation axis of the box cover is equal to the radius from the wheel surface to the rotation axis of the lifted member relative to the frame.

2. The linkage structure according to claim 1, characterized in that: The supporting surface is used to support and tension the linkage rope when the center of gravity of the box cover is misaligned with the storage groove in the vertical direction.

3. The linkage structure according to claim 2, characterized in that: The limiting structure is a limiting protrusion opened on both sides of the supporting surface, the two limiting protrusions form a limiting groove, the limiting groove and the supporting surface extend in the same direction, and the connecting portion is located in the extending direction of the limiting groove.

4. The linkage structure according to claim 1, wherein: The frame further comprises a limiting column connected to the box body, and the limiting column is used to tension the linkage rope when the center of gravity of the box cover is misaligned with the storage slot in the vertical direction.

5. The linkage structure according to claim 4, characterized in that: The frame also includes a limiting baffle connected to the box body, the limiting column has a limiting surface for supporting the linkage rope, and the limiting baffle is spaced apart and faces the limiting surface to form a limiting channel for the linkage rope to pass through together with the limiting surface.

6. The linkage structure according to claim 4, characterized in that: The limiting column is rotatably connected to the box body, and the rotation axis of the limiting column relative to the box body is not colinear with the extension direction of the linkage rope, so that when the linkage rope abuts against the limiting column and is in a tensioned state, the linkage rope can drive the limiting column to rotate relative to the box body.

7. A sunshade device, characterized in that: The linkage structure according to any one of claims 1 to 6 is adopted.

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