Driving device and awning transmission structure

Abstract

The invention relates to a driving device. A worm A rotates to drive a turbine to rotate correspondingly, a rotating shaft of a motor is set as a worm B, a rod part of the upper end of the worm A is set as a square rod A, an electromagnet is electrically connected with the motor in series, the middle of the electromagnet is through, and an iron disc is arranged on the top surface of the electromagnet and fixedly connected with an ejector rod; the ejector rod penetrates through the middle part of the electromagnet and can move up and down together with the iron disc; a plurality of convex teeth A are arranged on the surface of the contact surface A, a square hole A with a downward opening is formed in the middle of the movable part, and the upper end of the movable part abuts against the lower end of the ejector rod; gear teeth are arranged on the outer side of the gear disc, a contact surface B is arranged on the upper side of the gear disc, a plurality of convex teeth B are arranged on the surface of the contact surface B, and a through hole allowing a worm B cylinder to pass through is formed in the middle of the contact surface B; an upper gear and a lower gear are arranged above and below the duplicate gear; the lower end of the spring abuts against the gear disc, and the upper end abuts against the movable piece.

Description

Technical Field

[0001] The invention relates to the field of leisure products, and in particular to a driving device and a sunshade transmission structure. Background Art

[0002] At present, awnings are often used in outdoor leisure life. The opening and closing of the awning roof requires a driving device to provide power. Chinese utility model patent No. CN218176784U provides a power device for driving the opening and closing of the awning. The power device is configured as a steering gear composed of a worm and a turbine and a hand crank that can be detachably connected to the steering gear. The turbine is engaged with the rotating shaft, and the rotation of the turbine drives the rotating shaft to rotate accordingly.

[0003] However, this power device can only transmit power by manually rotating the worm, which not only has a single power and low transmission efficiency, but also requires a large force to use, which is inconvenient to use. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a driving device and a sunshade transmission structure with high transmission efficiency and convenient use.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A driving device comprises a worm A arranged longitudinally and a turbine arranged transversely, wherein the rotation of the worm A drives the turbine to rotate accordingly, and further comprises a motor, wherein the rotating shaft of the motor is arranged as a worm B, and the upper end rod portion of the worm A is arranged as a square rod A, and further comprises: an electromagnet, wherein the electromagnet is electrically connected in series with the motor, the middle part of the electromagnet is connected, an iron plate is arranged on the top surface of the electromagnet, the iron plate is fixedly connected with a push rod, the push rod passes through the middle part of the electromagnet and can move up and down together with the iron plate; a movable part, wherein a contact surface A is arranged at the lower end of the movable part, a plurality of convex teeth A are arranged on the surface of the contact surface A, a square hole A opening downward is arranged in the middle part of the movable part, the square rod A can be fitted and sleeved in the square hole A, and the upper end of the movable part abuts against the lower end of the push rod; a gear plate, wherein the outer side of the gear plate is arranged as gear teeth, the upper side is arranged as a contact surface B, a plurality of convex teeth B are arranged on the surface of the contact surface B, and a The through hole through which the B column passes; a double gear, the double gear is provided with an upper gear and a lower gear above and below, and the upper gear is meshed with the worm B; a gear set, the gear set is respectively meshed with the lower gear and the gear plate to realize the transmission of motor power; a spring, the lower end of the spring abuts against the gear plate, and the upper end abuts against the movable part; in the default state, the movable part is away from the gear plate under the elastic support of the spring, and the iron plate is synchronously away from the electromagnet, the convex tooth B does not hinder the movement of the convex tooth A, and the worm A is manually rotated to provide power to drive the turbine to rotate; when the power is turned on, the electromagnet and the motor work synchronously, the electromagnet generates magnetic force to absorb the iron plate and drive the push rod to push the movable part downward to compress the spring, so that the convex tooth A is staggered with the convex tooth B, and the motor rotates through the double gear and the gear set to drive the gear plate, the movable part, and the worm A in turn, and finally drives the turbine to rotate to provide power; after the power is disconnected, the drive device returns to the default state.

[0007] Furthermore, both the convex tooth A and the convex tooth B are block-shaped protrusions with a flat top surface. After the convex tooth A and the convex tooth B are limited, the convex tooth A abuts against the contact surface B or the convex tooth B abuts against the contact surface A, or the convex tooth A and the convex tooth B abut against the contact surface B and the contact surface A respectively.

[0008] Furthermore, the convex tooth A is a serrated component with multiple downwardly protruding gear teeth arranged in an annular manner on the surface of the contact surface A, and the convex tooth B is a serrated component with multiple upwardly protruding gear teeth arranged in an annular manner on the surface of the contact surface B. The convex tooth A and the convex tooth B are arranged correspondingly up and down, and the convex tooth A and the convex tooth B can engage with each other and limit each other after relative movement.

[0009] Furthermore, it also includes a top cover, a base and a bottom cover. The top cover and the bottom cover are respectively fastened with the base at the upper and lower ends by bolts or rivets. The electromagnet is fixedly arranged inside the top cover or on the top of the outer side. The movable parts, gear plates, springs, gear sets, double gears and motors are all arranged in the space closed by the top cover and the base. The turbine and worm A are arranged on the bottom cover. The lower end of the worm A extends out to facilitate external components. A square hole B is arranged in the middle of the turbine to communicate with the outside world.

[0010] Furthermore, a step lower than the contact surface B is provided in an annular shape in the through hole, and the lower end of the spring abuts against the step.

[0011] Furthermore, the gear set is a reduction gear set to obtain greater torque, and the gear teeth of the turbine and the upper gear are both helical teeth.

[0012] Furthermore, it also includes a hand crank, which can be connected to the worm B. A limit head is set at the lower end of the top rod, and the diameter of the limit head is larger than the aperture of the middle part of the electromagnet.

[0013] A sunshade transmission structure using a driving device comprises: a vertically connected crossbeam and a longitudinal beam, a driving device is fixed on the crossbeam; a fixing member fixed on the longitudinal beam, the fixing member is provided with a fixed shaft, and also comprises a rotating shaft parallel to the crossbeam, one end of the rotating shaft is provided as a square rod B which can be sleeved in a square hole B, and the other end is sleeved on the fixed shaft, a rotating bar is fixedly and vertically provided at one end of the rotating shaft close to the longitudinal beam, a movable bar is movably connected to the end of the rotating bar, a series bar is movably connected to the other end of the movable bar, and the series bar is parallel to the longitudinal beam; a sunshade and a connecting member fixedly connected to each other, a plurality of sunshades and connecting members are arranged in sequence to form a sunshade roof, the connecting member is Z-shaped, a connecting hole A is provided on the upper part of the connecting member body, and a connecting hole B is provided on the tail part, the connecting hole A is movably connected to the longitudinal beam by bolts, and the connecting hole B is movably connected to the series bar by bolts; the rotation of the turbine drives the rotating shaft and the rotating bar to rotate in turn, and pushes the movable bar, the series bar, and the connecting hole B to move back and forth, so that the connecting member rotates around the connecting hole A to drive the sunshade to rotate and open and close.

[0014] Furthermore, a stop column parallel to the fixed axis is arranged on the fixing member, the stop column is arranged on a side away from the cross beam, and the rotating bar rotates downward until the stop column stops moving.

[0015] Furthermore, a mounting portion is provided at the rear end of the top of the connecting piece, the mounting portion is a convex polygon, an upward mounting hole is provided at the front end of the top of the connecting piece, the sun visor comprises a main body portion provided in the middle, a mounting groove is provided at the rear end of the main body portion, the mounting portion is limited in the mounting groove, the main body portion accommodates the top of the connecting piece and is fixedly connected to the mounting hole through screws or rivets, and the sun visor is provided with a shading edge portion at the front side of the main body portion and a drainage groove at the rear side;

[0016] The shading edge of one sun visor abuts against the rear wall of the drainage groove of the adjacent sun visor on the front side, the awning transmission structure stops moving, and the awning top is closed; the sun visor rotates, the shading edge of one sun visor abuts against the rear wall of the drainage groove of the adjacent sun visor on the front side, and the awning top is opened.

[0017] In summary, compared with the prior art, the beneficial effects of the present invention are as follows: through the separation and contact between the movable part and the gear plate, under the synchronous action of the electromagnet and the motor, the driving device can electrically or manually drive the worm A to drive the turbine to rotate and provide power. The two driving modes are flexible to choose, and the electric mode can save time and effort and improve the conveying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0019] Figure 2 It is a schematic diagram of the decomposition structure of an embodiment;

[0020] Figure 3 It is a schematic diagram of the power transmission structure of the embodiment;

[0021] Figure 4 It is a schematic diagram of the worm A and the turbine structure;

[0022] Figure 5 It is a schematic diagram of the combination of the iron plate, the ejector rod, the electromagnet and the movable parts;

[0023] Figure 6 It is a schematic diagram of the iron plate, the ejector rod, the electromagnet and the movable parts;

[0024] Figure 7 It is one of the exploded schematic diagrams of the first embodiment of the movable part and the gear plate and the worm A;

[0025] Figure 8 The second exploded schematic diagram of the first embodiment of the movable part and the gear plate and the worm A;

[0026] Fig. 9 A schematic structural diagram of a first embodiment of a gear plate;

[0027] Fig.10 It is a schematic cross-sectional view of some structures of the embodiment;

[0028] Fig.11 It is a schematic diagram of the connection structure between the hand crank and the worm A;

[0029] Fig.12 This is a partial enlarged schematic diagram of the roof transmission structure;

[0030] Fig.13 It is a partial enlarged schematic diagram of the transmission structure when the roof is in the closed state;

[0031] Fig.14 This is a partial enlarged schematic diagram of the transmission structure when the roof is partially opened;

[0032] Fig.15 This is a partial enlarged schematic diagram of the transmission structure when the roof is fully opened;

[0033] Fig.16 It is a schematic diagram of the exploded state of some components of the transmission structure;

[0034] Fig.17 is a schematic diagram of the sun visor structure;

[0035] Fig.18 is a schematic diagram of the connecting piece structure;

[0036] Fig.19 It is a schematic diagram of the connection structure between the connector and the sun visor.

[0037] Fig. 20 This is one of the exploded and partially enlarged schematic diagrams of the second embodiment of the movable part and the gear plate;

[0038] Fig.21 This is the second exploded and partially enlarged schematic diagram of the second embodiment of the movable part and the gear plate;

[0039] Fig. 22 It is a vertical corresponding schematic diagram of the second embodiment of the convex tooth A and the convex tooth B;

[0040] Fig.23 It is a schematic diagram of the overall structure in which the electromagnet is arranged inside the top cover;

[0041] Fig.24 Schematic diagram of the cross-sectional structure of the electromagnet set inside the top cover

[0042] Reference numerals:

[0043] 1. Top cover; 11. Electromagnet; 12. Iron plate; 13. Push rod; 131. Limiting head; 2. Base; 21. Movable part; 211. Square hole A; 212. Contact surface A; 2121. Protruding tooth A; 22. Gear plate; 221. Contact surface B; 2211. Protruding tooth B; 222. Through hole; 223. Step; 23. Spring; 24. Gear set; 25. Double gear; 251. Upper gear; 252. Lower gear; 26. Motor; 261. Worm B; 3. Bottom cover; 31. Worm A; 311. Square rod A; 312. Hanging ring; 32. turbine; 321. square hole B; 4. hand crank; 41. hook; 42. crank handle A; 43. crank handle B; 44. main rod; 51. rotation axis; 511. square rod B; 52. rotation bar; 53. movable bar; 54. series bar; 61. fixing piece; 611. fixing axis; 612. stop column; 7. connecting piece; 71. connecting hole A; 72. connecting hole B; 73. mounting part; 74. mounting hole; 8. sun visor; 81. main body; 82. shading edge; 83. drainage groove; 84. mounting groove; 91. cross beam; 92. longitudinal beam DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inside", "outside", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0046] A drive device, such as Figures 1 to 19 As shown, the same worm gear structure as in the prior art Chinese patent No. CN218176784U (turbine 32 and worm A31 of the present technical solution) is adopted, which can ensure that power is transmitted only from the worm to the turbine, and cannot be transmitted in the opposite direction, that is, a self-locking effect. Different from it, the upper rod portion of the worm A31 is set as a square rod A311, and a motor 26 is also provided. The rotating shaft of the motor 26 is set as a worm B261. The square rod A311 is used to cooperate with other components to realize the linkage and separation of the turbine 32 and the worm A31 structure and the motor 26. The electromagnet 11 and the motor 26 are electrically connected in series, that is, when the power is turned on, both start at the same time, and when the power is turned off, both stop working at the same time. The middle part of the electromagnet 11 is connected, forming a structure as shown in the figure. Figure 6 In the through cavity Y shown, an iron plate 12 is arranged on the top surface of the electromagnet 11, and a push rod 13 is fixedly connected to the iron plate 12. The push rod 13 passes through the through cavity Y and moves up and down together with the iron plate 12. When the electromagnet 11 is energized, magnetism is generated, and the iron plate 12 can be magnetically attracted to its top surface. During this process, the push rod 13 moves downward together with it; the upper end of the movable part 21 abuts against the lower end of the push rod 13, and a square hole A211 opening downward is arranged in the middle of the movable part 21. The square rod A311 can be fitted in the square hole A211. The rotation of the square rod A311 drives the square hole A211 to rotate under the action of limiting, and finally causes the movable part 21 to rotate. Preferably, the square rod A311 and the square hole A211 are both quadrilaterals, and a contact surface A212 is arranged at the lower end of the movable part 21, and a convex tooth A212 is arranged on the surface of the contact surface A212. 2121; the outer side of the gear plate 22 is set as gear teeth, the upper side is set as a contact surface B221, the surface of the contact surface B221 is provided with a convex tooth B 2211, and the middle of the contact surface B221 is provided with a through hole 222 for the worm B261 column to pass through; after the convex tooth A 2121 and the convex tooth B 2211 are limited, the movable part 21 rotates to drive the gear plate 22 to rotate.

[0047] like Figure 6-Figure 9As shown, in one embodiment, the convex tooth A2121 and the convex tooth B2211 are both configured as block-shaped protrusions with a flat top surface. Since such block-shaped protrusions extend in the horizontal direction, only a small number of them are required to achieve mutual limiting effects. Generally speaking, two groups, four groups, or six groups are sufficient to achieve the effect of synchronous movement after limiting. Such a configuration has a simple structure, but since there is a certain distance between the protrusions, the movable part 21 may idle slightly before the convex tooth A2121 can abut against the convex tooth B2211 to achieve limiting. When the workpiece requires low machining accuracy, the convex tooth A2121 and the convex tooth B2211 can be limited, and the convex tooth A2121 can be abutted against the contact surface B221 or the convex tooth B2211 can be abutted against the contact surface A212, that is, only the convex tooth on one surface can be abutted against the other surface. When the workpiece requires high machining accuracy, the convex tooth A2121 and the convex tooth B2211 can be set to abut against the contact surface B221 and the contact surface A212 respectively at the same time to form a limit.

[0048] like Figure 20-22 As shown, in another embodiment, the protruding tooth A2121 is an annularly arranged on the surface of the contact surface A212 and has a plurality of gear teeth protruding downward. Fig. 20 The sawtooth-shaped part at P in the figure, the gear teeth P are conventional gear teeth, and the convex teeth B2211 are annularly arranged on the surface of the contact surface B221 and have a plurality of gear teeth protruding upward. Fig.21 The sawtooth component at Q in the figure, the gear teeth Q are the gear teeth of a conventional gear, such as Fig. 22 As shown by the vertical line M and the vertical line N shown in the figure, the convex teeth A2121 and the convex teeth B2211 are arranged correspondingly up and down to ensure that the convex teeth A2121 and the convex teeth B2211 can engage with each other after relative movement. The serrated arrangement of the convex teeth A2121 and the convex teeth B2211 arranged in a ring can avoid the idle rotation of the movable part 21, so that the movable part 21 can quickly engage with the gear plate 22 when it approaches the gear plate 22. Preferably, at least one of the rings where the convex teeth A2121 and the convex teeth B2211 are located is the maximum circumference on the contact surface A212 or the contact surface B221, as shown in FIG. Fig. 22 As shown, the convex teeth A2121 are distributed in a ring shape on the maximum circumference of the contact surface A212, so that the maximum meshing area can be achieved and the optimal limiting effect can be achieved.

[0049] like Figure 3 As shown, the double gear 25 is provided with an upper gear 251 and a lower gear 252, the upper gear 251 is meshed with the worm B261, and the gear set 24 is respectively meshed with the lower gear 252 and the gear plate 22 to realize the transmission of power of the motor 26. The gear set 24 can be composed of a plurality of identical single gears that only provide power, or it can be a reduction gear set that can obtain a larger torque, that is, transmission from a large gear to a small gear or transmission between large and small gears; the lower end of the spring 23 abuts against the gear plate 22, and the upper end abuts against the movable part 21.

[0050] In the default state, the spring 23 is in a natural state of elastic relaxation, and the movable part 21 is away from the gear plate 22 under the elastic support of the spring 23. The movable part 21 pushes the push rod 13 to make the iron plate 12 away from the electromagnet 11. At this time, the convex tooth B2211 will not hinder the movement of the convex tooth A2121, that is, the driving device is in manual mode at this time, and the worm A31 is turned by hand to provide power to drive the turbine 32 to rotate, and the rotation of the turbine 32 can provide power for the outside world; after the power is turned on, the driving device is in electric mode at this time, and the electromagnet 11 and the motor 26 work synchronously. The electromagnet 11 generates magnetic force to absorb the iron plate 12 and drive the push rod 13 to push the movable part 21 downward to compress the spring 23, so that the convex tooth A2121 and the convex tooth B2211 are staggered and meshed, and the motor 26 rotates through the double gear 25 and the gear set 24 to drive the gear plate 22, the movable part 21, and the worm A31 in turn, and finally drives the turbine 32 to rotate to provide power; after the power is disconnected, the driving device returns to the default state. It should be pointed out that due to the self-locking effect of the worm gear structure, the power transmission from the turbine to the worm cannot be realized, that is, it cannot be reversed. Specifically, in the manual mode, the worm A 31 and the turbine 32 are self-locked; in the electric mode, the worm A 31 and the turbine 32, the worm B 261 and the upper gear 251 are doubly self-locked. Of course, the forward or reverse rotation of the worm A 31 or the worm B 261 can realize the forward or reverse rotation of the corresponding turbine 32 or the upper gear 251.

[0051] In order to place the spring 23 firmly, Fig. 9 As shown, a step 223 lower than the contact surface B221 may be provided in an annular shape in the through hole 222 , and the lower end of the spring 23 abuts against the step 223 .

[0052] To further reduce wear and improve load-bearing capacity and transmission efficiency, such as Figure 3 As shown, the gear teeth of the turbine 32 and the upper gear 251 are both helical teeth.

[0053] In order to prevent the push rod 13 from moving upward and leaving the through cavity Y, Figure 6 and Fig.10 As shown, a limit head 131 is provided at the lower end of the push rod 13, and the diameter of the limit head 131 is larger than the aperture of the through cavity Y.

[0054] In manual mode, for the convenience of operation, a hand crank 4 can be provided for manual operation, and the hand crank 4 can be connected with the worm gear B261 and drive the worm gear B261 to rotate. The hand crank 4 can be a universal rotating rod, which is connected with the worm gear B261 by common means such as screws, rivets or welding. Fig.11As shown, the main body is a main rod 44 with a bent tail, the top of the main rod 44 is provided with a hook 41, the tail of the main rod 44 is provided with a crank handle A42, the middle of the main rod 44 is provided with a crank handle B43, the main rod 44 is rotatably connected with the crank handle A42 and the crank handle B43, the lower end of the worm A31 is provided with a hanging ring 312, and the hook 41 can be hung in the hanging ring 312. When in use, one hand holds the crank handle A42 and the other hand holds the crank handle B43, and the crank handle A42 is shaken so that the hook 41 drives the hanging ring 312 to rotate, thereby causing the worm A31 to rotate accordingly; when not in use, the hand crank 4 can be taken out from the hanging ring 312.

[0055] In order to realize the optimal way of assembling the driving device, a housing can also be provided to reasonably accommodate the components of the driving device. The housing includes a top cover 1, a base 2 and a bottom cover 3 arranged from top to bottom. The top cover 1 and the bottom cover 3 are respectively fastened with the base 2 at the upper and lower ends by bolts or rivets. Figure 1 and Figure 2 As shown, the electromagnet 11 can be fixedly arranged on the outside of the top cover 1, that is, the bottom surface of the electromagnet 11 is fixed on the top surface of the top cover 1, so that the size of the electromagnet 11 will not be limited by the size of the top cover 1. For example, if a stronger magnetic attraction is required and a larger electromagnet 11 is required, the top cover 1 does not need to be changed, and the electromagnet 11 can be replaced separately on the top of the top cover 1; Fig.23 and Fig.24 As shown, the electromagnet 11 can also be fixedly arranged on the inner side of the top cover 1, that is, the top surface of the electromagnet 11 is fixed on the top surface of the top cover 1, so that when the volume of the electromagnet 11 can be accommodated inside the top cover 1, it can bring a better visual experience and occupy a smaller space; the movable part 21, the gear plate 22, the spring 23, the gear set 24, the double gear 25 and the motor 26 are all arranged in the space closed by the top cover 1 and the base 2, the turbine 32 and the worm A31 are arranged on the bottom cover 3, the lower end of the worm A31 extends out to facilitate external components, and a square hole B321 connected to the outside world is arranged in the middle of the turbine 32.

[0056] like Fig.12As shown, the awning transmission structure using the above-mentioned driving device includes: a vertically connected crossbeam 91 and a longitudinal beam 92, the driving device is fixed on the crossbeam 91; a fixing member 61 fixed on the longitudinal beam 92, the fixing member 61 is provided with a fixed shaft 611, and also includes a rotating shaft 51 parallel to the crossbeam 91, one end of the rotating shaft 51 is set as a square rod B511 that can be sleeved in the square hole B321, and the other end is sleeved on the fixed shaft 611, and the end of the rotating shaft 51 close to the longitudinal beam 92 is fixedly and vertically provided with a rotating bar 52, the end of the rotating bar 52 is movably connected to a movable bar 53, and the other end of the movable bar 53 is movably connected to a series bar 54, and the series bar 54 is connected to the movable bar 53. The connecting strip 54 is parallel to the longitudinal beam 92; the sun visors 8 and connecting members 7 are fixedly connected to each other, and multiple groups of sun visors 8 and connecting members 7 are arranged in sequence to form a sunshade roof. The connecting member 7 is Z-shaped, and a connecting hole A71 is provided on the upper part of the main body of the connecting member 7, and a connecting hole B72 is provided on the tail part. The connecting hole A71 is movably connected to the longitudinal beam 92 by bolts, and the connecting hole B72 is movably connected to the series strip 54 by bolts; the rotation of the turbine 32 drives the rotating shaft 51 and the rotating strip 52 to rotate in turn, and pushes the movable bar 53, the series bar 54, and the connecting hole B72 to move forward and backward, so that the connecting member 7 rotates around the connecting hole A71 to drive the sun visor 8 to rotate and open and close.

[0057] like Figure 17-Figure 19 As shown, a mounting portion 73 is provided at the rear end of the top of the connecting member 7, and the mounting portion 73 is a protruding polygon. An upward mounting hole 74 is provided at the front end of the top of the connecting member 7. The sun visor 8 includes a main body 81 arranged in the middle, and the rear end of the main body 81 is provided with a mounting groove 84. The mounting portion 73 is limited in the mounting groove 84. The main body 81 accommodates the top of the connecting member 7 and is fixedly connected to the mounting hole 74 by screws or rivets. The sun visor 8 is provided with a shading edge 82 on the front side of the main body 81 and a drainage groove 83 on the rear side; the shading edge 82 of a sun visor 8 abuts against the rear wall of the drainage groove 83 of the adjacent sun visor 8 on the front side, the awning transmission structure stops moving, and the awning roof is closed; the sun visor 8 rotates, and the shading edge 82 of a sun visor 8 abuts against the rear wall of the drainage groove 83 of the adjacent sun visor 8 on the front side, and the awning roof is opened.

[0058] In order to limit the range of motion of the rotating shaft 51, Fig.16 As shown, a stop column 612 parallel to the fixed axis 611 is provided on the fixing member 61 , and the stop column 612 is provided on a side away from the cross beam 91 , and the rotating bar 52 rotates downward until the stop column 612 stops moving.

[0059] like Fig.13 As shown, when the sun visor 8 is closed, the rotating bar 52 is located at the rear end, and the shading edge 82 of one sun visor 8 abuts against the rear wall of the drainage groove 83 of the sun visor 8 adjacent to the front side;

[0060] like Fig.14As shown, when the sun visor 8 starts to open, the rotating bar 52 rotates forward from the rear end, pushing the connecting member 7 to rotate with the connecting hole A71 as the axis, and the shading edge 82 of one sun visor 8 is gradually separated from the rear wall of the drainage groove 83 of the sun visor 8 adjacent to the front side. Due to the self-locking effect of the worm gear, the power disappears, the connecting member 7 stops rotating immediately, and the sun visor 8 is fixed at a certain angle. Preferably, the sun visor 8 rotates at an angle of 90 degrees.

[0061] like Fig.14 As shown, when the sun visor 8 is rotated to 90 degrees, it is in a fully open state, and at this time, the rotating bar 52 abuts against the blocking column 612 and stops moving.

[0062] From the above description, it can be seen that the above-mentioned embodiment achieves the following technical effects: under the synchronous action of the electromagnet and the motor, the switching between the electric mode and the manual mode can be realized, the power source of the worm A is diverse, easy to use, and has high transmission efficiency.

[0063] The above are merely exemplary embodiments of the present invention and are not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A driving device, comprising a worm A (31) arranged longitudinally and a turbine (32) arranged transversely, wherein the rotation of the worm A (31) drives the turbine (32) to rotate accordingly, and further comprising a motor (26), wherein the rotating shaft of the motor (26) is arranged as a worm B (261), characterized in that: The upper end rod portion of the worm A (31) is configured as a square rod A (311), and further comprises: An electromagnet (11), the electromagnet (11) and the motor (26) are electrically connected in series, the middle of the electromagnet (11) is through-connected, an iron plate (12) is arranged on the top surface of the electromagnet (11), the iron plate (12) is fixedly connected to a push rod (13), and the push rod (13) passes through the middle of the electromagnet (11) and can move up and down together with the iron plate (12); A movable member (21), wherein a contact surface A (212) is provided at the lower end of the movable member (21), and a plurality of convex teeth A (2121) are provided on the surface of the contact surface A (212); a square hole A (211) opening downward is provided in the middle of the movable member (21), and the square rod A (311) can be fitted in the square hole A (211), and the upper end of the movable member (21) abuts against the lower end of the push rod (13); A gear plate (22), wherein the outer side of the gear plate (22) is provided with gear teeth, the upper side is provided with a contact surface B (221), the surface of the contact surface B (221) is provided with a plurality of convex teeth B (2211), and the middle part of the contact surface B (221) is provided with a through hole (222) through which the column of the worm B (261) can pass; A double gear (25), wherein the double gear (25) is provided with an upper gear (251) and a lower gear (252) at the upper and lower ends, and the upper gear (251) is meshed with the worm gear B (261); A gear set (24), wherein the gear set (24) is respectively meshed with the lower gear (252) and the gear plate (22) to achieve transmission of power from the motor (26); a spring (23), wherein the lower end of the spring (23) abuts against the gear plate (22) and the upper end of the spring (23) abuts against the movable member (21); In a default state, the movable part (21) is moved away from the gear plate (22) under the elastic support of the spring (23), the iron plate (12) is synchronously moved away from the electromagnet (11), the convex tooth B (2211) does not hinder the movement of the convex tooth A (2121), and the worm A (31) is manually rotated to provide power to drive the turbine (32) to rotate; when the power is turned on, the electromagnet (11) and the motor (26) work synchronously, and the electromagnet (11) generates magnetic force to attract the iron plate tightly. (12) drives the push rod (13) to push the movable part (21) downward to compress the spring (23), so that the convex teeth A (2121) and the convex teeth B (2211) are meshed with each other, and the motor (26) rotates through the double gear (25) and the gear set (24) to drive the gear plate (22), the movable part (21), and the worm A (31) in sequence, and finally drives the turbine (32) to rotate to provide power; after the power supply is disconnected, the drive device returns to the default state.

2. A driving device according to claim 1, characterized in that: The convex tooth A (2121) and the convex tooth B (2211) are both block-shaped protrusions with a flat top surface. After the convex tooth A (2121) and the convex tooth B (2211) are limited, the convex tooth A (2121) abuts against the contact surface B (221) or the convex tooth B (2211) abuts against the contact surface A (212), or the convex tooth A (2121) and the convex tooth B (2211) abut against the contact surface B (221) and the contact surface A (212) respectively at the same time.

3. A driving device according to claim 1, characterized in that: The convex tooth A (2121) is a sawtooth-like component with a plurality of gear teeth protruding downward and arranged in an annular shape on the surface of the contact surface A (212); the convex tooth B (2211) is a sawtooth-like component with a plurality of gear teeth protruding upward and arranged in an annular shape on the surface of the contact surface B (221); the convex tooth A (2121) and the convex tooth B (2211) are arranged correspondingly up and down; the convex tooth A (2121) and the convex tooth B (2211) can engage with each other to limit position after relative movement.

4. A driving device according to claim 2 or 3, characterized in that: The invention also comprises a top cover (1), a base (2) and a bottom cover (3), wherein the top cover (1) and the bottom cover (3) are respectively fastened to the base (2) at the upper and lower ends by bolts or rivets, the electromagnet (11) is fixedly arranged inside or on the top of the outer side of the top cover (1), the movable part (21), the gear plate (22), the spring (23), the gear set (24), the double gear (25) and the motor (26) are all arranged in a space closed by the top cover (1) and the base (2), the turbine (32) and the worm A (31) are arranged on the bottom cover (3), the lower end of the worm A (31) protrudes so as to be connected to an external component, and a square hole B (321) is arranged in the middle of the turbine (32) for communicating with the outside.

5. A driving device according to claim 4, characterized in that: A step (223) lower than the contact surface B (221) is provided in an annular shape inside the through hole (222), and the lower end of the spring (23) abuts against the step (223).

6. A driving device according to claim 5, characterized in that: The gear set (24) is a reduction gear set for obtaining a greater torque, and the gear teeth of the turbine (32) and the upper gear (251) are both helical teeth.

7. A driving device according to claim 6, characterized in that: It also includes a hand crank (4), the hand crank (4) can be connected to the worm gear B (261), and a limit head (131) is provided at the lower end of the top rod (13), and the diameter of the limit head (131) is larger than the hole diameter of the middle part of the electromagnet (11).

8. A sunshade transmission structure using the driving device of claim 7, characterized in that: include: A vertically connected crossbeam (91) and longitudinal beam (92), wherein the driving device is fixed on the crossbeam (91); A fixing member (61) fixed on the longitudinal beam (92), the fixing member (61) being provided with a fixing shaft (611), and also comprising a rotating shaft (51) parallel to the transverse beam (91), one end of the rotating shaft (51) being provided as a square rod B (511) which can be sleeved in the square hole B (321), and the other end being sleeved on the fixing shaft (611), a rotating bar (52) being fixedly and vertically provided at one end of the rotating shaft (51) close to the longitudinal beam (92), the end of the rotating bar (52) being movably connected to a movable bar (53), the other end of the movable bar (53) being movably connected to a series connection bar (54), and the series connection bar (54) being parallel to the longitudinal beam (92); Sunshades (8) and connecting members (7) are fixedly connected to each other, and a plurality of groups of the sunshades (8) and the connecting members (7) are arranged in sequence to form a sunshade roof. The connecting member (7) is Z-shaped, and a connecting hole A (71) is provided at the upper part of the main body of the connecting member (7), and a connecting hole B (72) is provided at the rear part. The connecting hole A (71) is movably connected to the longitudinal beam (92) by bolts, and the connecting hole B (72) is movably connected to the series bar (54) by bolts. The rotation of the turbine (32) drives the rotating shaft (51) and the rotating bar (52) to rotate in turn, pushing the movable bar (53), the series bar (54), and the connecting hole B (72) to move forward and backward, so that the connecting member (7) rotates around the connecting hole A (71) to drive the sun visor (8) to rotate and open and close.

9. The awning transmission structure according to claim 8, characterized in that: The fixing member (61) is provided with a stop column (612) parallel to the fixing shaft (611), and the stop column (612) is arranged on a side away from the crossbeam (91), and the rotating bar (52) rotates downward until the stop column (612) stops moving.

10. The awning transmission structure according to claim 8, characterized in that: The top rear end of the connecting member (7) is provided with a mounting portion (73), the mounting portion (73) is a convex polygon, the top front end of the connecting member (7) is provided with an upward mounting hole (74), the sun visor (8) comprises a main body (81) arranged in the middle, the rear end of the main body (81) is provided with a mounting groove (84), the mounting portion (73) is limited in the mounting groove (84), the main body (81) accommodates the top of the connecting member (7) and is fixedly connected to the mounting hole (74) by screws or rivets, and the sun visor (8) is provided with a shading edge portion (82) on the front side of the main body (81) and a drainage groove (83) on the rear side; The shading edge (82) of one of the sun visors (8) abuts against the rear wall of the drainage groove (83) of the sun visor (8) adjacent to the front side, the sunshade transmission structure stops moving, and the sunshade roof is closed; the sun visor (8) rotates, the shading edge (82) of one of the sun visors (8) abuts against the rear wall of the drainage groove (83) of the sun visor (8) adjacent to the front side, and the sunshade roof is opened.

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