CN114633610A

CN114633610A - Sun shading device

Info

Publication number: CN114633610A
Application number: CN202210336068.1A
Authority: CN
Inventors: 郑文忠; 刘涛
Original assignee: Shenzhen Mynew Technology Co ltd
Current assignee: Shenzhen Mynew Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-06-17
Anticipated expiration: 2042-03-31
Also published as: CN114633610B; WO2023185321A1

Abstract

The application provides a sun shading device which comprises a sun shade, wherein the sun shade comprises a base, a shade body and a driving unit; the umbrella body comprises a sun-shading cloth, a telescopic component and an umbrella rib component, wherein the telescopic component is rotatably connected to the base, the umbrella rib component is connected with the sun-shading cloth, and the umbrella rib component has an unfolding state for unfolding the sun-shading cloth and a folding state for folding the sun-shading cloth; the driving unit is connected to the base and the telescopic assembly and used for driving the telescopic assembly to be close to or far away from the base, so that the telescopic assembly drives the umbrella rib assembly to be switched between the unfolding state and the folding state, and the driving unit is also used for driving the telescopic assembly to rotate relative to the base around the central axis of the telescopic assembly, so that the sun-shading cloth is driven to rotate through the umbrella rib assembly. The problem that the cost of the existing sun shading device with the function of automatically rotating the sun shade relative to the frame is high is mainly solved.

Description

Sun shading device

Technical Field

The application belongs to the field of sunshade, more specifically say, relate to a solar protection devices.

Background

With the increasing use rate of automobiles, when the automobiles are parked under strong sun, the automobile body can quickly accumulate heat, so that the temperature in the carriage is also quickly raised, and after a long time, leather or related materials in the carriage can generate harmful gases after being exposed to the strong sun, so that the breathing of a human body is not smooth, and the comfortable sensation of the human body is not good; moreover, the automobile body is easy to damage under the irradiation of the sun, and the aging is accelerated by plastics, paint, rubber and the like. In addition, a large amount of energy is consumed for cooling after the vehicle is driven. Therefore, the existing automobile sun-shading device can block the direct sunlight from the automobile body by utilizing the automobile sun-shading device so as to greatly reduce the temperature in the compartment.

The existing automobile sun-shading device generally comprises a frame and a sunshade, and for some scenes (such as the posture of the sunshade relative to the frame needs to be adjusted or the sunshade needs to be stored in the frame), the sunshade needs to rotate relative to the frame.

Disclosure of Invention

An object of the embodiment of the application is to provide a sunshade device, which mainly solves the technical problem that the existing sunshade device with the function of automatically rotating a sunshade umbrella relative to a frame is high in cost.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the sunshade device comprises a sunshade, wherein the sunshade comprises a base, a sunshade body and a driving unit;

the umbrella body comprises a sun-shading cloth, a telescopic component and an umbrella rib component, wherein the telescopic component is rotatably connected to the base, the umbrella rib component is connected with the sun-shading cloth, and the umbrella rib component has an unfolding state for unfolding the sun-shading cloth and a folding state for folding the sun-shading cloth;

the driving unit is connected to the base and the telescopic assembly and used for driving the telescopic assembly to be close to or far away from the base, so that the telescopic assembly drives the umbrella rib assembly to be switched between the unfolding state and the folding state, and the driving unit is also used for driving the telescopic assembly to rotate relative to the base around the central axis of the telescopic assembly, so that the sun-shading cloth is driven to rotate through the umbrella rib assembly.

In one embodiment, the driving unit comprises a driving part and a rotating rod connected to the output end of the driving part, the telescopic component is screwed on the rotating rod, and the driving part drives the telescopic component to be close to or far away from the base by driving the rotating rod to rotate.

In one embodiment, the driving unit further includes a blocking member connected to the rotating rod, and the blocking member is configured to limit the telescopic assembly from being separated from the rotating rod, so that the rotating rod can drive the telescopic assembly to rotate relative to the base when the telescopic assembly abuts against the blocking member.

In one embodiment, the telescopic assembly comprises a nut seat and a telescopic rod which are connected, the nut seat is in threaded connection with the rotating rod and is arranged on one side of the blocking piece facing the base, and the telescopic rod is connected with the umbrella rib assembly.

In one embodiment, an avoiding channel is formed in the telescopic rod, one end of the rotating rod, which is far away from the base, the nut seat and the blocking piece are all accommodated in the avoiding channel, and the extending direction of the avoiding channel is the same as the length direction of the rotating rod.

In one embodiment, the nut seat comprises a first main body and a second main body, a connecting end surface is arranged on one side of the first main body facing the telescopic rod, the second main body is connected to the connecting end surface and is accommodated in the avoiding channel, and the telescopic rod is abutted against the connecting end surface and is fixedly connected with the first main body; the first body or the second body is screwed to the rotating rod.

In one embodiment, the umbrella rib assembly comprises a rotating seat, a lower mounting seat, an upper mounting seat, a plurality of driving rods and a plurality of connecting rod assemblies;

the rotating seat is rotatably connected to the base and is connected to the telescopic assembly in a sliding manner;

the lower mounting seat is fixedly connected to the telescopic assembly;

the upper mounting seat is positioned on one side, back to the base, of the lower mounting seat and is positioned on the central axis of the telescopic assembly;

the connecting rod assemblies are connected to the sunshade cloth in a rotating mode and have an unfolding state for unfolding the sunshade cloth and a folding state for folding the sunshade cloth;

the driving rod is rotatably connected to the lower mounting seat and one of the connecting rod assemblies, and is used for driving the connecting rod assemblies to be mutually switched between the unfolding state and the folding state.

In one embodiment, the upper mounting seat is provided with a positioning hole, and when the connecting rod assembly is in the unfolding state, the telescopic assembly is inserted into the positioning hole.

In one embodiment, the linkage assembly includes a first linkage, a second linkage, a third linkage, and a fourth linkage;

one end of the driving rod, which is far away from the lower mounting seat, is rotatably connected to the first connecting rod;

one end of the first connecting rod is rotatably connected to the rotating seat, and the other end of the first connecting rod is rotatably connected to the second connecting rod; one end of the second connecting rod, which is far away from the first connecting rod, is connected to the sunshade cloth; one end of the third connecting rod is rotatably connected to the upper mounting seat, the other end of the third connecting rod is rotatably connected to the fourth connecting rod, and one end, far away from the third connecting rod, of the fourth connecting rod is rotatably connected to the middle of the second connecting rod.

In one embodiment, the sunshade device further comprises a frame and a driving mechanism, wherein the driving mechanism is connected to the frame and the base, the base is rotatably connected with the frame, and the driving mechanism is used for pushing the sunshade to rotate relative to the frame between a first position close to the frame and a second position far away from the frame.

Compared with the prior art, the sunshade device that this application provided's beneficial effect lies in at least:

this application adopts a drive unit, realizes simultaneously that flexible subassembly is close to or keeps away from the base and flexible subassembly is for base pivoted function around the central axis of self to realized the expansion of puggaree and driven puggaree and rotated for the base, consequently, a power supply has been saved in this application, can reduce solar protection devices's cost by a wide margin, can also simplify solar protection devices' structural design, reduce solar protection devices 'volume and weight, and then satisfy consumer's demand.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a sun shading device provided in an embodiment of the present application;

FIG. 2 is a schematic view of the sunshade shown in FIG. 1 with the sunshade raised;

FIG. 3 is a schematic view of the sun shade shown in FIG. 1 with the parasol raised in place;

FIG. 4 is a schematic view of the sunshade of FIG. 3 after the sunshade is fully deployed;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

FIG. 6 is a schematic structural diagram of a driving mechanism in the sunshade device according to the embodiment of the present application;

FIG. 7 is an exploded view of the drive mechanism shown in FIG. 6;

FIG. 8 is a schematic structural view of the sunshade device shown in FIG. 4 after the sunshade cloth is hidden;

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

FIG. 10 is an exploded view of a sunshade in the sunshade according to the embodiment of the present application after the sunshade cloth is hidden;

FIG. 11 is an exploded view of the parasol of FIG. 10 shown with portions of the rib assembly hidden;

fig. 12 is an exploded view of the sunshade shown in fig. 11 at another angle.

Wherein, in the figures, the respective reference numerals:

1. a frame; 11. a box body; 111. a receiving groove; 12. a box cover; 121. a raised block; 1211. a support surface; 122. a connecting portion; 1221. connecting holes; 123. a limiting structure; 124. a limiting groove; 13. a connecting rod; 14. a box cover; 15. a rotating shaft; 16. a hinge; 17. a limiting column; 171. a limiting surface; 18. a limit baffle; 181. a limiting channel;

2. a sunshade;

21. a base;

22. an umbrella body; 221. a sun-shading cloth; 222. a telescoping assembly; 2221. a nut seat; 22211. a first body; 222111, connecting end faces; 22212. a second body; 2222. a telescopic rod; 22221. an avoidance channel; 223. an umbrella rib assembly; 2231. rotating the base; 22311. a mesopore; 2232. a lower mounting seat; 2233. an upper mounting seat; 22331. positioning holes; 2234. a drive rod; 2235. a connecting rod assembly; 22351. a first link; 22352. a second link; 22353. a third link; 22354. a fourth link; 2236. a bearing; 2237. a shaft pin;

23. a drive unit; 231. a fixed seat; 232. a drive member; 233. rotating the rod; 234. a blocking member;

3. a drive mechanism; 31. a transfer block; 32. a drive module; 321. a driver; 3211. a motor; 3212. a speed reducer; 322. a screw; 323. a nut block; 3231. a first body; 32311. a connecting surface; 3232. a second body; 324. a limiting sheet; 33. a push rod; 331. inserting holes; 332. avoiding holes; 34. a guide seat; 341. a guide hole; 35. a rotation pin; 36. a knob;

4. a linkage mechanism; 41. a linkage rope; 42. a sheave; 421. and (4) a wheel surface.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present 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 merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be considered limiting to the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present application, "a plurality" means two or more unless specifically limited otherwise.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 5, a sunshade device according to an embodiment of the present application will be described. The sunshade device comprises a frame 1, a sunshade 2 and a driving mechanism 3.

The frame 1 includes a case 11 and a case cover 12. The case 11 is provided with an open receiving groove 111, and the cover 12 is rotatably connected to the case 11 by a hinge 16, in other words, when the cover 12 rotates relative to the case 11, a position of a projection of a center of gravity of the cover 12 in a vertical direction onto the receiving groove 111 is changed, and the cover 12 is used to cover a notch of the receiving groove 111. In addition, the sunshade 2 is rotatably connected to the box body 11, so that the sunshade 2 can be accommodated in the accommodating groove 111 as shown in fig. 1, or can be erected away from the accommodating groove 111 as shown in fig. 3, for convenience of description, a position where the sunshade 2 is accommodated in the accommodating groove 111 shown in fig. 1 is defined as a first position of the sunshade 2, and a position where the sunshade 2 is away from the accommodating groove 111 in fig. 3 is defined as a second position of the sunshade 2. Specifically, referring to fig. 5, a rotating shaft 15 is fixed on the box 11, and the sunshade 2 is sleeved on an outer wall of the rotating shaft 15 and can rotate around an axis of the rotating shaft 15. Wherein, the driving mechanism 3 is connected with the box body 11 and the sunshade 2, and the driving mechanism 3 is used as the power for driving the sunshade 2 to rotate relative to the box body 11. Fig. 4 shows the sunshade 2 in an unfolded state, in which the sunshade 2 is available for shading the sun.

Further, after the cover 12 is covered on the receiving groove 111, a magnet structure can be adopted to attract the cover 12 to the box body 11, and when the driving mechanism 3 drives the sunshade 2 to rotate from the first position shown in fig. 1 to the second position shown in fig. 3, the sunshade 2 can drive the cover 12 to be separated from the magnetic force on the box body 11 and gradually open; further, when the driving mechanism 3 drives the sunshade 2 to fall back again to the first position shown in fig. 1 at the second position shown in fig. 3, the sunshade 2 automatically closes the cover 12 toward the notch of the receiving groove 111 by the link mechanism 4.

Referring to fig. 5, in one embodiment, the linkage mechanism 4 includes a linkage rope 41 (indicated by a chain line in fig. 5 as linkage rope 41), one end of the linkage rope 41 is connected to the sunshade 2, and the other end of the linkage rope 41 is connected to the cover 12. At this time, when the driving mechanism 3 drives the sunshade 2 to fall back to the first position shown in fig. 1 again at the second position shown in fig. 3, the sunshade 2 can automatically cover the storage groove 111 by pulling the linkage rope 41.

Referring to fig. 5, in the embodiment of the present application, the linkage mechanism 4 includes a linkage rope 41 and a rope pulley 42, and the rope pulley 42 is sleeved on the rotating shaft 15 and fixed on the base 21 of the sunshade 2, so that the rope pulley 42 can also rotate around the axis of the rotating shaft 15. One end of the link rope 41 is fixed to the sheave 42 and wound around the tread 421 of the sheave 42, and the other end of the link rope 41 is also fixed to the cover 12. When the driving mechanism 3 drives the sunshade 2 to fall back to the first position shown in fig. 1 again at the second position shown in fig. 3, the linkage rope 41 is gradually wound around the rope pulley 42, and the cover 12 is pulled by the linkage rope 41 because the cover 12 is pulled by the linkage rope 41, so that the cover 12 covers the opening of the accommodating groove 111. When the driving mechanism 3 drives the sunshade 2 to rotate from the first position shown in fig. 1 to the second position shown in fig. 3, the linkage rope 41 gradually winds out of the rope pulley 42, so that the sunshade 2 can smoothly push the cover 12 open, and when the sunshade 2 pushes the cover 12 to a certain position, the cover 12 will gradually open the receiving groove 111 under the self-gravity.

Specifically, referring to fig. 3 and 5, a protruding block 121 is disposed on the inner side of the case cover 12, a connecting portion 122 and a limiting structure 123 are disposed on the protruding block 121, the connecting portion 122 is used for fixing one end of the linkage rope 41, and the limiting structure 123 is used for limiting the extending path of the linkage rope 41 to prevent the linkage rope 41 from separating from the protruding block 121. In other words, when one end of the link rope 41 is gradually wound out from the sheave 42, the protrusion piece 121 on the cover 12, which is gradually opening, can drive the other end of the link rope 41 to be gradually pulled out in the direction in which the cover 12 is opened, so that the link rope 41 can be placed in tension.

More specifically, referring to fig. 3 and 5, the protruding block 121 has a supporting surface 1211 away from the cover 12, the supporting surface 1211 is a partial arc surface whose center falls on the rotation axis of the cover 12 (i.e. the rotation axis of the hinge 16), and the radius from the supporting surface 1211 to the rotation axis of the cover 12 is equal to or slightly larger than the radius from the wheel surface 421 to the rotation axis of the sunshade 2 (i.e. the axis of the rotation shaft 15) relative to the frame 1. In this way, when one end of the link rope 41 is wound out of the sheave 42 by the distance D1 per unit time, the protrusion piece 121 on the cover 12 being gradually opened can drive the other end of the link rope 41 to be pulled out by a distance equal to or slightly greater than D1 per unit time in the opening direction of the cover 12, thereby enabling the link rope 41 to be in a tensioned state also when the cover 12 is opened. The connecting portion 122 is disposed on the supporting surface 1211 and close to the inner side surface of the case cover 12, and the position-limiting structure 123 is disposed around the supporting surface 1211 and extends in the same direction as the supporting surface 1211.

In the present embodiment, referring to fig. 5, the limiting structure 123 is preferably limiting protrusions disposed on two sides of the supporting surface 1211, a limiting groove 124 is formed between the limiting protrusions on the two sides, the connecting portion 122 is located in an extending direction of the limiting groove 124, a connecting hole 1221 is disposed on the connecting portion 122, one end of the connecting hole 1221 is communicated with the limiting groove 124 and gradually extends toward an inner side surface of the case cover 12, and one end of the linkage rope 41 is inserted and fixed in the connecting hole 1221.

Referring to fig. 5, the central axis of the rotating shaft 15 and the rotating axis of the hinge 16 are not in the same line, so that the posture of the link rope 41 is changed during the winding and unwinding process, which may cause a problem that the link rope 41 is locked on other components. In contrast, the frame 1 of the present embodiment further includes a limiting post 17 connected to the box body 11, a central axis of the limiting post 17 is vertically disposed, in other words, a central axis of the limiting post 17 is perpendicular to the rotation axes of the rotating shaft 15 and the hinge 16, the limiting post 17 is used for tensioning the linkage rope 41, and when the linkage rope 41 is being retracted, the linkage rope 41 can abut against a limiting surface 171 on the outer side of the limiting post 17. In addition, the position of the linkage rope 41 can be limited by the position limiting column 17, specifically, due to the fact that the position limiting column 17 is arranged, one part of the linkage rope 41 can extend to the wheel surface 421 in a straight line mode, the other part of the linkage rope 41 can extend to the connecting portion 122 in a straight line mode, the position of the linkage rope 41 in the retracting process can be guaranteed to be almost unchanged, and the problem that the linkage rope 41 is blocked is avoided. In addition, the limit column 17 can be rotatably connected to the box body 11, and when the linkage rope 41 is in the retracting process, the limit surface 171 on the outer side of the limit column 17 rotates relative to the box body 11 after receiving static friction force applied by the linkage rope 41, so that the friction force between the linkage rope 41 and the limit column 17 can be greatly reduced.

Referring to fig. 5, the frame 1 of this embodiment further includes a limiting baffle 18 fixed on the box body 11, the limiting baffle 18 faces the limiting surface 171 and is disposed at an interval with the limiting post 17, so that a limiting channel 181 is formed between the limiting post 17 and the limiting baffle 18, the limiting channel 181 is provided for the linkage rope 41 to pass through, the limiting baffle 18 can prevent the linkage rope 41 from moving in a direction away from the limiting surface 171, and at this time, the reliability of the linkage rope 41 in the retracting and releasing process can be further ensured, thereby further avoiding the problem that the linkage rope 41 and other components are jammed.

It is to be noted that the above-described link structure for linking the opening or closing of the lid 12 when the sunshade 2 is switched between the first position and the second position with respect to the frame 1 is not limited to the sunshade field, and can also be used for the opening or closing of the lid 12 when other members to be lifted move on the frame 1. Specifically, in other embodiments, the to-be-lifted member is connected to the frame 1 and is connected to the driving mechanism 3 through the connecting mechanism, and when the driving mechanism 3 drives the connecting mechanism to move, the driving mechanism 3 can drive the to-be-lifted member to switch between the position of being accommodated in the accommodating groove 111 and the position of being located outside the accommodating groove 111. In this embodiment, the connecting mechanism is a base 21, and the member to be lifted is an umbrella body 22.

Referring to fig. 1 and 3, the frame 1 further includes a connecting rod 13 and a box cover 14. The connecting rod 13 is fixed at the bottom of the box body 11, the connecting rod 13 is used for connecting an original fixing rod at the top of an automobile, so that the whole frame 1 can be stably fixed at the top of the automobile, and when the sunshade 2 is in an unfolded state, the sunshade 2 can shield the front windshield and the rear windshield of the automobile. Of course, the frame 1 may not include the connecting rod 13, and the connecting rod 13 may be purchased by a user as an existing part. And a box cover 14 is fixed to the front of the box body 11, and the box cover 14 is used to cover the driving mechanism 3 so that the driving mechanism 3 can be prevented from being damaged by external factors when the sunshade 2 is received in the receiving groove 111. When the box cover 14 is removed, maintenance of the drive mechanism 3 is facilitated, and manual operation of the drive mechanism 3 is also facilitated.

Referring to fig. 3, fig. 6 and fig. 7, the driving mechanism 3 of the present embodiment mainly includes a transfer block 31, a driving module 32, a push rod 33 and a guide seat 34.

Wherein, the driving module 32 is installed on the junction block 31 and connected to the push rod 33, and the driving module 32 can drive the push rod 33 to approach or move away from the junction block 31. Secondly, the adapting block 31 is hinged to the box body 11, one end of the push rod 33, which is far away from the adapting block 31, is rotatably connected with the sunshade 2, the connection position of the push rod 33 and the sunshade 2 is spaced from the rotating shaft 15, when the push rod 33 is driven by the driving module 32 to be close to or far away from the adapting block 31, the push rod 33 can drive the sunshade 2 to rotate around the axis of the rotating shaft 15, the guide seat 34 is connected with the driving module 32 and is provided with a guide hole 341, the extending 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, and the guide seat 34 is used for improving the movement precision of the push rod 33. Specifically, referring to fig. 5 and 6, the push rod 33 is provided with an insertion hole 331, a rotation pin 35 is inserted into the insertion hole 331, the rotation pin 35 is fixed at the bottom end of the sunshade 2, and the push rod 33 can rotate around the rotation pin 35. The torque required by the driving module 32 can be reduced by switching the sunshade 2 between the first position and the second position by using the reciprocating extension of the push rod 33.

Referring to fig. 6 and 7, the driving module 32 includes a driver 321, a screw 322, a nut block 323, and a limiting plate 324. The driver 321 is connected to the transfer block 31 and the guide seat 34, the screw 322 is connected to the output end of the driver 321 and is accommodated in the guide hole 341, the nut block 323 is screwed to the screw 322, and the push rod 33 is fixed to the nut block 323. In operation, the driver 321 can drive the screw rod 322 to rotate, and the screw rod 322 drives the nut block 323 and the push rod 33 to perform reciprocating telescopic motion along the length direction of the screw rod 322 to approach or depart from the transfer block 31. The limiting piece 324 is fixed at one end of the screw rod 322 far from the driver 321 to limit the nut block 323 from separating from the screw rod 322, and the limiting piece 324 can also be used for limiting the position of the sunshade 2 at the second position, that is, when the nut block 323 abuts against the limiting piece 324, the sunshade 2 reaches the second position, and further, no other limiting piece is required to be additionally arranged to limit the sunshade 2 when reaching the second position.

Referring to fig. 7 again, an avoiding hole 332 is formed at one end of the push rod 33 facing the driver 321, a depth direction of the avoiding hole 332 is the same as a length direction of the screw rod 322, and a portion of the screw rod 322, a portion of the nut block 323, and the limiting piece 324 are all accommodated in the avoiding hole 332. In addition, the nut block 323 specifically includes a first body 3231 and a second body 3232 connected to each other, wherein a side of the first body 3231 facing away from the driver 321 is provided with a connection surface 32311, the second body 3232 is connected to the connection surface 32311, the push rod 33 abuts against the connection surface 32311 and is fixedly connected to the first body 3231, the second body 3232 is accommodated in the avoiding hole 332, the first body 3231 and the second body 3232 may both be provided with a threaded hole screwed with the screw rod 322, and the above-mentioned limiting piece 324 may limit the second body 3232 to be detached from the screw rod 322.

In this embodiment, referring to fig. 6 and fig. 7, the driver 321 specifically includes a motor 3211 and a reducer 3212, an output shaft of the motor 3211 is connected to an input end of the reducer 3212, the reducer 3212 is connected to one end of the screw 322, and the reducer 3212 is fixed to the transfer block 31. During operation, the power of the motor 3211 may be transmitted to the screw 322 through the reducer 3212, so as to drive the screw 322 to rotate.

Referring to fig. 6 and 7, the driving mechanism 3 further includes a knob 36, the knob 36 is fixed at one end of the screw rod 322, and when the knob 36 is manually rotated, the screw rod 322 is driven to rotate.

Referring to fig. 3, the driving mechanism 3 further includes an electric storage module (not shown) fixed on the box 11 and used for supplying electric power to the driver 321. The power storage module can be a lithium battery power supply or a solar module and the like.

In conclusion, the screw rod 322 is adopted to drive the push rod 33 to do telescopic motion, which not only can reduce the torque required by the motor 3211, thereby reducing the volume of the motor 3211 and the cost of the motor 3211, but also the push rod 33 can not move along the axial direction of the screw rod 322 spontaneously, i.e. the sunshade 2 in the second position can not fall back to the first position spontaneously due to gravity, so that the motor 3211 can stop outputting power when the sunshade 2 is in the second position, at this time, the matching relationship between the screw rod 322 and the nut block 323 can form a reverse self-locking structure, so that the sunshade 2 can still be reliably fixed in the second position on the premise that the motor 3211 does not output power. In addition, by combining the design of the knob 36, when the electric quantity of the electricity storage module is insufficient or the motor 3211 fails, the sunshade 2 can be manually controlled to switch between the first position and the second position by the knob 36, and the sunshade 2 can be reliably fixed at the second position.

The specific structure of sunshade 2 will be described in detail with reference to the accompanying drawings.

Referring to fig. 8 to 12, the sunshade 2 includes a base 21, a body 22, and a driving unit 23. Wherein the base 21 rotates relative to the frame 1 about the rotation axis 15, the umbrella body 22 is rotatably connected to the base 21, and the driving unit 23 is fixed on the base 21 and is used for driving the umbrella body 22 to rotate relative to the base 21. The axis of rotation of the umbrella body 22 with respect to the base 21 and the axis of rotation of the base 21 with respect to the frame 1 (i.e., the axis of the rotating shaft 15) are perpendicular to each other.

Specifically, referring to fig. 4, 8-12, the umbrella body 22 further includes a sunshade cloth 221, a telescopic assembly 222 and a rib assembly 223. The rib assembly 223 is connected to the sunshade cloth 221, and has an unfolded state for unfolding the sunshade cloth 221 and a folded state for folding the sunshade cloth 221. In addition, the telescopic assembly 222 is connected to the umbrella rib assembly 223 and rotatably connected to the base 21, and the driving unit 23 is connected to the telescopic assembly 222 and can drive the telescopic assembly 222 to rotate relative to the base 21, so as to drive the umbrella rib assembly 223, the sun cloth 221 and the telescopic assembly 222 to rotate synchronously. Drive unit 23 is also capable of driving retraction assembly 222 away from or toward base 21 to place rib assembly 223 in either the extended or collapsed positions.

More specifically, referring to fig. 8-12, the driving unit 23 includes a fixing seat 231, a driving member 232, a rotating rod 233 and a blocking member 234. Wherein, fixing base 231 is fixed on base 21, driving piece 232 is fixed on fixing base 231, driving piece 232 is preferably the motor, dwang 233 is preferably the lead screw that has the external screw thread, the one end of dwang 233 and the output shaft of driving piece 232, and dwang 233 passes through the bearing and rotates to be connected in fixing base 231, when driving piece 232 work, can drive dwang 233 and make the rotation, and foretell telescopic component 222 spiro union in dwang 233, when dwang 233 rotates, can drive telescopic component 222 and be close to or keep away from base 21. The stopper 234 is fixed to the top end of the rotating rod 233, and the stopper 234 is used to limit the telescopic assembly 222 from separating from the rotating rod 233, and when the telescopic assembly 222 abuts against the stopper 234, the telescopic assembly 222 cannot continue to move along the axial direction of the rotating rod 233, and at this time, the rotating rod 233 can drive the telescopic assembly 222 to synchronously rotate.

Further, referring to fig. 8-12, the telescopic assembly 222 includes a nut holder 2221 and a telescopic rod 2222. The nut holder 2221 is screwed to the rotating rod 233, the telescopic rod 2222 is fixed to the nut holder 2221, and the rotation of the rotating rod 233 can drive the nut holder 2221 and the telescopic rod 2222 to move closer to or away from the base 21. The stopper 234 is provided on the side of the nut holder 2221 facing away from the base 21, and the stopper 234 serves to restrict the nut holder 2221 from disengaging from the rotating lever 233.

Further, referring to fig. 11 and 12, the nut holder 2221 includes a first body 22211 and a second body 22212. The first main body 22211 has a connecting end 222111 on one side facing the telescopic bar 2222, and the second main body 22212 is connected to the connecting end 222111. Further, the telescopic bar 2222 is provided with an escape passage 22221 at one end facing the nut seat 2221, the escape passage 22221 extends in the same direction as the longitudinal direction of the rotating lever 233, the parts of the second main body 22212 and the rotating lever 233 and the stopper 234 are accommodated in the escape passage 22221, and the telescopic bar 2222 is fixedly connected to the first main body 22211 by abutting against the connecting end surface 222111. Either the first body 22211 or the second body 22212 may be provided with a screw hole to be screwed with the rotating lever 233.

In more detail, referring again to fig. 8-12, rib assembly 223 includes a rotating base 2231, a lower mounting base 2232, an upper mounting base 2233, a plurality of drive rods 2234, and a plurality of linkage assemblies 2235.

The rotating base 2231 is rotatably connected to the fixed base 231, and since the fixed base 231 is fixed to the base 21, the rotating base 2231 is rotatably connected to the base 21. Specifically, two bearings 2236 are sleeved on the fixing base 231, the inner diameter of each bearing 2236 is fixed on the fixing base 231, and the outer diameter of each bearing 2236 is fixed on the rotating base 2231, so that the rotating base 2231 can rotate relative to the fixing base 231, and meanwhile, since the rotating base 2231 is connected to the telescopic rod 2222 through each connecting rod assembly 2235, the rotating base 2231 is driven to rotate by the rotation of the telescopic rod 2222 through each connecting rod assembly 2235, and the sun cloth 221 is driven to rotate. In other words, when the telescopic bar 2222 and the rotating bar 233 rotate in synchronization, the rotating base 2231, the lower mounting base 2232, the upper mounting base 2233, the plurality of driving rods 2234, the plurality of link assemblies 2235, and the sunshade cloth 221 all rotate in synchronization with the telescopic bar 2222.

In addition, the rotating base 2231 is provided with a central hole 22311, the central hole 22311 extends along the moving direction of the telescopic rod 2222, and the telescopic rod 2222 is inserted into the central hole 22311 and can slide along the hole wall of the central hole 22311. In other words, the rotary seat 2231 plays a role of guiding the telescopic bar 2222 in addition to the function of connecting the link assembly 2235.

The lower mounting seat 2232 is fixed to the telescopic rod 2222 through a shaft pin 2237, the lower mounting seat 2232 also plays a role of connecting the connecting rod assembly 2235, and when the telescopic rod 2222 is close to or away from the base 21, the lower mounting seat 2232 can drive the connecting rod assembly 2235 to be outwardly extended or inwardly retracted, so that the sunshade cloth 221 connected to the connecting rod assembly 2235 is extended or retracted.

The upper mounting seat 2233 also serves to connect the connecting rod assembly 2235, the upper mounting seat 2233 is located on a side of the lower mounting seat 2232 opposite to the base 21, and a connecting line between the upper mounting seat 2233 and the lower mounting seat 2232 is the same as a moving direction of the telescopic rod 2222. Specifically, when the upper mount 2233 and the lower mount 2232 are proximate to one another, the linkage assembly 2235 is distracted; when the upper mount 2233 and the lower mount 2232 move away from each other, the linkage assembly 2235 is collapsed. In addition, when the upper and lower mounting

seats

2233 and 2232 are moved close to each other, the top of the telescopic bar 2222 is inserted into the positioning hole 22331 of the upper mounting seat 2233, so as to ensure that the upper and lower mounting

seats

2233 and 2232 have better relative positioning accuracy.

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 link assemblies 2235, so that when the lower mounting seat 2232 is close to or away from the base 21, the driving rod 2234 can drive the link assemblies 2235 to expand outward or contract inward.

The link assembly 2235 includes a first link 22351, a second link 22352, a third link 22353, and a fourth link 22354. One end of the first link 22351 is hinged on the rotating base 2231, the other end of the first link 22351 is hinged on the second link 22352, one end of the second link 22352 far away from the first link 22351 is connected with the sunshade cloth 221, one end of the third link 22353 is hinged on the upper mounting base 2233, the other end of the third link 22353 is hinged on the fourth link 22354, and one end of the fourth link 22354 far away from the third link 22353 is hinged on the middle part of the second link 22352. The driving rod 2234 is hinged to one of the first links 22351.

The specific working principle of the sunshade 2 is as follows: when the sunshade umbrella 2 is located at 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 is driven by the nut seat 2221 to gradually approach the base 21 (i.e. to move downwards), at this time, because the lower mounting seat 2232 is driven by the telescopic rod 2222 to gradually approach the base 21, the driving rod 2234 gradually expands the first link 22351 outwards, the second link 22352, the third link 22353 and the fourth link 22354 also gradually expand outwards by the first link 22351, at the same time, the upper mounting seat 2233 is also driven by a plurality of third links 22353 to gradually approach the lower mounting seat 2232, and when the sunshade cloth 221 is completely expanded, the top of the telescopic rod 2222 is inserted into the positioning hole 22331 of the upper mounting seat 2233, so as 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 is driven by the nut seat 2221 to gradually move away from the base 21 (i.e., move upward), and at this time, the lower mounting seat 2232 is driven by the telescopic rod 2222 to gradually move away from the base 21, so that the driving rod 2234 is gradually drawn inward, the driving rod 2234 pulls the first connecting rod 22351 to gradually draw 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 draw inward, meanwhile, the upper mounting seat 2233 is also driven by the plurality of third connecting rods 22353 to gradually move away from the lower mounting seat 2232, and when the nut seat 2221 pushes up the blocking member 234, the sunshade cloth 221 can be drawn up.

Referring to fig. 1 and 3 together, after the sunshade 2 is rotated to the first position shown in fig. 1 from the second position shown in fig. 3, because the sunshade cloth 221 is a soft member, the sunshade cloth 221 is partially exposed to the receiving groove 111, and the cover 12 covers the receiving groove 111, but the rotation rod 233 is driven to rotate by the driving member 232, since the nut seat 2221 cannot be further away from the base 21 by the blocking member 234, the nut seat 2221 and the telescopic bar 2222 will rotate synchronously with the rotation of the rotating rod 233, since the telescopic bar 2222 is connected by the rib assembly 223 and the sunshade cloth 221, therefore, the umbrella rib assembly 223 and the sunshade cloth 221 will rotate synchronously with the rotation of the telescopic bar 2222, and finally the sunshade cloth 221 will be completely accommodated in the accommodating groove 111 through the gap between the box cover 12 and the box 11.

The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented merely for purposes of illustration and description of the principles of the invention and is not intended to limit the scope of the invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the exercise of inventive faculty will be appreciated by those skilled in the art and are intended to be included within the scope of the invention.

Claims

1. A sun shading device is characterized by comprising a sun shade, wherein the sun shade comprises a base, a shade body and a driving unit;

the umbrella body comprises a sunshade cloth, a telescopic component and an umbrella rib component, the telescopic component is rotatably connected to the base, the umbrella rib component is connected with the sunshade cloth, and the umbrella rib component has an unfolding state for unfolding the sunshade cloth and a folding state for folding the sunshade cloth;

2. The sunshade apparatus of claim 1, wherein the driving unit includes a driving member and a rotation rod connected to an output end of the driving member, the telescopic member is screwed to the rotation rod, and the driving member drives the telescopic member to move toward or away from the base by driving the rotation rod to rotate.

3. The sun shading device of claim 2, wherein the drive unit further includes a blocking member connected to the rotating rod, the blocking member being configured to restrict the retraction assembly from disengaging from the rotating rod such that the rotating rod can rotate the retraction assembly relative to the base when the retraction assembly abuts against the blocking member.

4. The sun shade apparatus of claim 3 wherein the telescoping assembly includes a nut seat and a telescoping rod connected, the nut seat being threadably connected to the pivot rod and disposed on a side of the blocking member facing the base, the telescoping rod being connected to the rib assembly.

5. The sunshade device according to claim 4, wherein an escape passage is provided in the extendable rod, an end of the rotatable rod remote from the base, a portion of the nut seat, and the blocking member are accommodated in the escape passage, and an extension direction of the escape passage is the same as a length direction of the rotatable rod.

6. The sunshade of claim 5, wherein the nut seat includes a first body and a second body, the first body having a connection end surface on a side facing the telescoping rod, the second body being connected to the connection end surface and received in the escape passage, the telescoping rod being fixedly connected to the first body against the connection end surface; the first body or the second body is screwed to the rotating rod.

7. The sun shade apparatus of any one of claims 1-6, wherein the umbrella rib assembly includes a rotating base, a lower mounting base, an upper mounting base, a plurality of drive rods, and a plurality of linkage assemblies;

the lower mounting seat is fixedly connected to the telescopic assembly;

8. The sun shade apparatus of claim 7, wherein the upper mounting base is provided with a positioning hole, and the telescopic assembly is inserted into the positioning hole when the connecting rod assembly is in the unfolded state.

9. The sun shade apparatus of claim 7 wherein the linkage assembly includes a first link, a second link, a third link, and a fourth link;

10. A sun shade according to any one of claims 1 to 6, further comprising a frame and a drive mechanism connected to the frame and to the base, the base being pivotally connected to the frame, the drive mechanism being adapted to urge the shade to pivot relative to the frame between a first position adjacent the frame and a second position remote from the frame.