Driving device and awning transmission structure

Abstract

The utility model relates to a driving device. A worm A rotates to drive a worm gear to rotate correspondingly, a rotating shaft of a motor is arranged to be a worm B, a rod portion of the upper end of the worm A is arranged to be 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 face 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 utility model relates to the field of leisure supplies, particularly to a driving device and sunshade canopy transmission structure. BACKGROUND

[0002] At present, in the outdoor leisure life, often use sunshade canopy, the opening and closing of sunshade canopy roof need driving device to provide power, the power device for driving the opening and closing of sunshade canopy is provided in CN218176784U Chinese utility model patent, the power device is set to the steering gear that is composed of worm and worm wheel and the hand lever that can be detachably connected with the steering gear, the worm wheel is engaged with the rotating shaft, the worm wheel rotation drives the corresponding rotation of the rotating shaft.

[0003] However, this power device can only rely on manual rotation of the worm to realize the transmission of power, not only the power is single, the transmission efficiency is low, and the use needs to use the big force, and the use is inconvenient. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a driving device and sunshade canopy transmission structure with high transmission efficiency and convenient use.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] The utility model provides a drive arrangement, including longitudinal arrangement worm wheel A and transverse arrangement worm wheel, worm wheel A rotation drives worm wheel corresponding rotation, still include motor, motor's rotation axis is arranged as worm wheel B, worm wheel A upper end rod part is arranged as square rod A, still include electromagnet, electromagnet and motor electric series connection, electromagnet middle part is through, is provided with iron dish on electromagnet top surface, iron dish fixedly connected with top rod, top rod passes through electromagnet middle part and can with iron dish together up and down movement, movable element, movable element lower end is provided with contact surface A, is provided with a plurality of convex tooth A on contact surface A surface, movable element middle part is provided with the square hole A that opens downward, square rod A can suitably set in square hole A, movable element upper end abuts top rod lower end, gear plate, gear plate outside is provided as gear, is provided as contact surface B on the upside, is provided with a plurality of convex tooth B on contact surface B surface, contact surface B middle part is provided with the through -hole of can be supplied worm wheel B column, double gear, double gear is provided with upper gear and lower gear up and down, upper gear is engaged with worm wheel B, gear set, gear set is engaged with lower gear and gear plate respectively and realizes motor power transmission, spring, spring lower end abuts gear plate, upper end abuts movable element, default state, movable element is away from gear plate under the elastic support of spring, iron dish synchronous away from electromagnet, convex tooth B does not hinder convex tooth A movement, manually rotates worm wheel A to provide power drive worm wheel rotation, connects power, electromagnet and motor synchronous work, electromagnet generates magnetic force and attracts iron dish and drives top rod and pushes movable element down and compresses spring, makes convex tooth A and convex tooth B staggered engagement, motor rotation passes through double gear and gear set and drives gear plate, movable element, worm wheel A in proper order, finally drives worm wheel rotation to provide power, after disconnecting power, drive arrangement recovers to default state.

[0007] Further, the convex tooth A and the convex tooth B are both block-shaped protrusions with flat top surfaces, and after being 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] Further, the convex tooth A is a sawtooth-shaped component with a plurality of downward protruding gear teeth arranged in a ring shape on the surface of the contact surface A, the convex tooth B is a sawtooth-shaped component with a plurality of upward protruding gear teeth arranged in a ring shape on the surface of the contact surface B, and the convex tooth A and the convex tooth B are arranged in a corresponding up-and-down manner and can be engaged and limited after relative movement.

[0009] Further, the utility model also includes a top cover, a base and a bottom cover, the top cover and the bottom cover are respectively buckled with the base at the upper and lower ends through bolts or rivets, the electromagnet is fixedly arranged inside or on the top of the top cover, the movable element, the gear plate, the spring, the gear set, the double gear and the motor are all arranged in the space closed by the top cover and the base, the worm wheel and the worm wheel A are arranged on the bottom cover, the lower end of the worm wheel A is extended to be connected with external components, and the middle part of the worm wheel is provided with a square hole B communicating with the outside.

[0010] Further, the through hole is annularly provided with a step lower than the contact surface B, and the lower end of the spring abuts against the step.

[0011] Further, the gear set is a speed reduction gear set to obtain greater torque, and the gear teeth of the worm wheel and the upper gear are helical.

[0012] Further, the hand lever is connected with the worm B, the lower end of the ejector rod is provided with a limiting head, and the diameter of the limiting head is greater than the hole diameter of the middle part of the electromagnet.

[0013] The sunshade driving structure comprises a vertical connection of a cross beam and a longitudinal beam, a driving device is fixed on the cross beam, a fixing part is fixed on the longitudinal beam, the fixing part is provided with a fixing shaft, a rotating shaft parallel to the cross beam is further included, one end of the rotating shaft is provided as a square rod B which can be sleeved in the square hole B, the other end of the rotating shaft is sleeved on the fixing shaft, the end of the rotating shaft close to the longitudinal beam is fixedly provided with a rotating strip, the end of the rotating strip is movably connected with a movable strip, the other end of the movable strip is movably connected with a series connection strip, the series connection strip is parallel to the longitudinal beam, a sunshade plate and a connecting part are fixedly connected with each other, a plurality of groups of the sunshade plate and the connecting part are arranged in sequence to form a sunshade roof, the connecting part is Z-shaped, the connecting part is provided with a connecting hole A on the upper part of the main body and a connecting hole B on the tail part, the connecting hole A is movably connected on the longitudinal beam through a bolt, and the connecting hole B is movably connected on the series connection strip through a bolt, the worm wheel rotates to drive the rotating shaft and the rotating strip to rotate, and the movable strip, the series connection strip and the connecting hole B are pushed to move forward and backward, so that the connecting part rotates around the connecting hole A to drive the sunshade plate to rotate and open and close.

[0014] Further, the fixing part is provided with a blocking column parallel to the fixing shaft, the blocking column is arranged on the side away from the cross beam, and the rotating strip stops moving when being downward rotated to the blocking column.

[0015] Further, the connecting part is provided with a mounting part at the top rear end, the mounting part is a convex polygon, the connecting part is provided with an upward mounting hole at the top front end, the sunshade plate comprises a main body part arranged at the middle part, the main body part is provided with a mounting groove at the rear end, the mounting part is limited in the mounting groove, the main body part accommodates the top part of the connecting part and is fixedly connected with the mounting hole through a screw or a rivet, the sunshade plate is provided with a sunshade edge part at the front side of the main body part and a drainage groove at the rear side.

[0016] The sunshade edge part of one sunshade plate abuts against the rear wall of the drainage groove of the sunshade plate adjacent to the front side, the sunshade driving structure stops moving, and the sunshade roof is closed; the sunshade plate rotates, the sunshade edge part of one sunshade plate abuts against the rear wall of the drainage groove of the sunshade plate adjacent to the front side, and the sunshade roof is opened.

[0017] Compared with the prior art, the utility model has the beneficial effects that through the away and contact of the movable element and the gear plate, under the synchronous action of the electromagnet and the motor, the driving device can drive the worm A to rotate to provide power, two driving modes are adopted, selection is flexible, and the power transmission efficiency can be improved through the electric mode. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic view of example;

[0019] Figure 2 It is exploded structure schematic view of example;

[0020] Figure 3 It is power transmission structure schematic view of example;

[0021] Figure 4 It is structure schematic view of worm A and worm wheel;

[0022] Figure 5 It is combination schematic view of iron plate, ejector rod, electromagnet and movable element;

[0023] Figure 6 It is exploded schematic view of iron plate, ejector rod, electromagnet and movable element;

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

[0025] Figure 8 It is two of exploded schematic view of movable element and gear plate first embodiment and worm A;

[0026] Figure 9 It is structure schematic view of gear plate first embodiment;

[0027] Figure 10 It is part structure section schematic view of example;

[0028] Figure 11 It is connection structure schematic view of hand lever and worm A;

[0029] Figure 12 It is local enlarged schematic view of top drive structure;

[0030] Figure 13 It is local enlarged schematic view of top drive structure in closed state;

[0031] Figure 14 It is local enlarged schematic view of top drive structure in partly open state;

[0032] Figure 15 It is local enlarged schematic view of top drive structure in all open state;

[0033] Figure 16 Figure 8 is an exploded view of the transmission structure;

[0034] Figure 17 Figure 9 is a schematic view of the sun visor structure;

[0035] Figure 18 Figure 10 is a schematic view of the connecting member structure;

[0036] Figure 19 Figure 11 is a schematic view of the connecting member and sun visor connecting structure.

[0037] Figure 20 Figure 12 is an exploded and partially enlarged schematic view of the second embodiment of the movable member and gear plate, part 1;

[0038] Figure 21 Figure 13 is an exploded and partially enlarged schematic view of the second embodiment of the movable member and gear plate, part 2;

[0039] Figure 22 Figure 14 is a schematic view of the second embodiment of the protrusion A and protrusion B, vertical correspondence;

[0040] Figure 23 Figure 15 is a schematic view of the overall structure of the electromagnet arranged inside the top cover;

[0041] Figure 24 Figure 16 is a schematic view of the cross-sectional structure of the electromagnet arranged inside the top cover

[0042] Reference signs:

[0043] 1, top cover; 11, electromagnet; 12, iron plate; 13, top rod; 131, limit head; 2, base; 21, movable member; 211, square hole A; 212, contact surface A; 2121, protrusion A; 22, gear plate; 221, contact surface B; 2211, protrusion 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, worm wheel; 321, square hole B; 4, hand lever; 41, hook; 42, hand lever A; 43, hand lever B; 44, main rod; 51, rotating shaft; 511, square rod B; 52, rotating bar; 53, movable bar; 54, series bar; 61, fixed member; 611, fixed shaft; 612, blocking column; 7, connecting member; 71, connecting hole A; 72, connecting hole B; 73, mounting portion; 74, mounting hole; 8, sun visor; 81, main body portion; 82, sun visor portion; 83, drainage groove; 84, mounting groove; 91, cross beam; 92, longitudinal beam DETAILED DESCRIPTION

[0044] In the description of the utility model, it needs to explain, the terms "upper", "lower", "inner", "outer", "front", "back" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0045] The utility model will be further explained in detail in combination with the drawings:

[0046] A kind of driving device, as shown in Figures 1 to 19 Same worm gear structure (the worm gear 32 of this technical scheme and the worm A31) in prior art CN218176784U is adopted, so that it can be guaranteed that power transmission is only from the worm to the worm gear, and cannot be transmitted in reverse direction, i.e., self-locking effect.Different from it, the upper end rod portion of the worm A31 is set as square rod A311, and motor 26 is also provided, and the rotating shaft of the motor 26 is set as worm B261, and the square rod A311 is used to cooperate with other components to jointly realize the linkage and separation of the worm gear 32 and the worm A31 structure and the motor 26, and the electromagnet 11 and the motor 26 are electrically connected in series, i.e., when power supply is turned on, both are started simultaneously, and when power supply is turned off, both stop working simultaneously, and the middle part of the electromagnet 11 is penetrated to form a through cavity Y as shown in Figure 6 The top surface of the electromagnet 11 is provided with an iron disc 12, the iron disc 12 is fixedly connected with a top rod 13, the top rod 13 penetrates through the through cavity Y and moves up and down together with the iron disc 12, the electromagnet 11 generates magnetism after being electrified, and the iron disc 12 can be magnetically attracted to the top surface thereof, and in this process, the top rod 13 moves downward together; the upper end of the movable part 21 abuts against the lower end of the top rod 13, the middle part of the movable part 21 is provided with a square hole A211 which is downwardly open, the square rod A311 can be fitted in the square hole A211, and the rotation of the square rod A311 drives the rotation of the square hole A211 under the limiting action, so that the movable part 21 is finally rotated, preferably, the square rod A311 and the square hole A211 are quadrilaterals, the lower end of the movable part 21 is provided with a contact surface A212, and the surface of the contact surface A212 is provided with a convex tooth A2121; the outer side of the gear disc 22 is provided with a gear tooth, the upper side is provided with a contact surface B221, the surface of the contact surface B221 is provided with a convex tooth B2211, and the middle part of the contact surface B221 is provided with a through hole 222 through which the column body of the worm B261 can pass; after the convex tooth A2121 and the convex tooth B2211 are limited, the rotation of the movable part 21 drives the rotation of the gear disc 22.

[0047] As shown in Figures 6-9As shown, in one embodiment, both protrusions A2121 and B2211 are block-shaped protrusions with a flat top surface. Since these block-shaped protrusions extend horizontally, only a small number are needed to achieve mutual limiting. Generally, two, four, or six sets are sufficient to achieve the effect of synchronous movement after limiting. Such a structure is simple, but since there is a certain distance between each protrusion, the moving part 21 may rotate slightly before protrusion A2121 can abut against protrusion B2211 to achieve limiting. When the required machining accuracy of the workpiece is not high, the tooth A2121 and tooth B2211 can be used for limiting the position, with tooth A2121 abutting against contact surface B221 or tooth B2211 abutting against contact surface A212. That is, only one tooth abutting against the other surface is required. When the required machining accuracy of the workpiece is high, tooth A2121 and tooth B2211 can be set to abut against contact surface B221 and contact surface A212 simultaneously to form a limiting position.

[0048] like Figures 20-22 As shown, in another embodiment, the protruding tooth A2121 is a ring-shaped arrangement of multiple downward-protruding teeth on the contact surface A212. Figure 20 The serrated component at point P has teeth P that are conventional gear teeth, and the convex teeth B2211 are multiple upward-protruding teeth arranged in a ring on the contact surface B221. Figure 21 The serrated component at point Q in the diagram, where the gear tooth Q is a conventional gear tooth, such as... Figure 22 As shown by vertical lines M and N, the teeth A2121 and B2211 are arranged vertically to ensure that they can mesh and limit each other after relative movement. The annular sawtooth arrangement of the teeth A2121 and B2211 prevents the moving part 21 from spinning freely, allowing it to quickly achieve meshing and limiting as it approaches the gear disk 22. Preferably, at least one of the annular rings containing the teeth A2121 and B2211 is the largest circumference on the contact surface A212 or contact surface B221. Figure 22 As shown, the protruding teeth A2121 are distributed in a ring shape on the maximum circumference of the contact surface A212, which can achieve the maximum meshing area and the optimal limiting effect.

[0049] like Figure 3 As shown, the double gear 25 has an upper gear 251 and a lower gear 252 arranged vertically. The upper gear 251 meshes with the worm gear B261. The gear set 24 meshes with the lower gear 252 and the gear disk 22 respectively to realize the transmission of power of the motor 26. The gear set 24 can be composed of multiple identical single gears that only provide power, or it can be a reduction gear set that can obtain greater torque, that is, the power is transmitted from the large gear to the small gear or the large and small gears are transmitted alternately. The lower end of the spring 23 abuts against the gear disk 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, the movable part 21 is away from the gear disc 22 under the support of the spring 23, the movable part 21 pushes the top rod 13 to make the iron disc 12 away from the electromagnet 11, at this time, the convex teeth B2211 will not hinder the movement of the convex teeth A2121, that is, at this time, the driving device is in a manual mode, the worm A31 is rotated by hand to provide power to drive the worm wheel 32 to rotate, which can provide power to the outside; after the power is turned on, the driving device is in an electric mode, the electromagnet 11 works synchronously with the motor 26, the electromagnet 11 generates a magnetic force to tightly suck the iron disc 12 to drive the top rod 13 to push the movable part 21 downward to compress the spring 23, so that the convex teeth A2121 and the convex teeth B2211 are intermeshed, the motor 26 rotates to drive the gear disc 22, the movable part 21, the worm A31 and the worm wheel 32 in turn through the double gear 25 and the gear set 24, and finally drives the worm wheel 32 to rotate to provide power; after the power is turned off, the driving device returns to the default state. It should be pointed out that due to the self-locking effect of the worm and gear structure, the power transmission from the worm wheel to the worm cannot be realized, that is, it cannot be reversed, specifically, in the manual mode, the worm A31 and the worm wheel 32 are self-locked; in the electric mode, the worm A31 and the worm wheel 32, and the worm B261 and the upper gear 251 are double self-locked. Of course, the forward rotation or reverse rotation of the worm A31 or the worm B261 can realize the forward rotation or reverse rotation of the corresponding worm wheel 32 or upper gear 251.

[0051] In order to place the spring 23 firmly, as shown in Figure 9 , a step 223 lower than the contact surface B221 can be arranged annularly in the through hole 222, and the lower end of the spring 23 abuts against the step 223.

[0052] In order to further reduce wear, improve carrying capacity and transmission efficiency, as shown in Figure 3 , the teeth of the worm wheel 32 and the upper gear 251 are all helical teeth.

[0053] In order to prevent the top rod 13 from moving upward and separating from the through cavity Y, as shown in Figure 6 and Figure 10 , a limiting head 131 is arranged at the lower end of the top rod 13, and the diameter of the limiting head 131 is greater than the hole diameter of the through cavity Y.

[0054] In the manual mode, in order to facilitate operation, a hand crank 4 can be arranged for hand operation, the hand crank 4 can be connected with the worm B261 to drive the worm B261 to rotate, the hand crank 4 can be a general rotating rod, which is connected with the worm B261 by common methods such as screws, rivets or welding. The hand crank 4 can also be as shown in Figure 11As shown, the main body is a main rod 44 with a bent tail. A hook 41 is located at the top of the main rod 44, a crank handle A42 is located at the tail of the main rod 44, and a crank handle B43 is located in the middle of the main rod 44. The main rod 44 is rotatably connected to the crank handles A42 and B43. The lower end of the worm gear A31 is a hanging ring 312, and the hook 41 can be hung inside the hanging ring 312. In use, one hand holds the crank handle A42, and the other hand holds the crank handle B43. Cranking the crank handle A42 causes the hook 41 to rotate, which in turn rotates the hanging ring 312, causing the worm gear A31 to rotate accordingly. When not in use, the crank handle 4 can be removed from the hanging ring 312.

[0055] To achieve the optimal assembly method for the drive unit, an outer casing can be provided to reasonably accommodate the components of the drive unit. The outer casing 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 fastened to the base 2 at their respective upper and lower ends by bolts or rivets. Figure 1 and Figure 2 As shown, the electromagnet 11 can be fixedly mounted on the outside of the top cover 1, that is, the bottom surface of the electromagnet 11 is fixed to the top surface of the top cover 1. This way, the size of the electromagnet 11 is not limited by the size of the top cover 1. For example, if a stronger magnetic force is required and a larger electromagnet 11 is needed, the top cover 1 does not need to be changed; the electromagnet 11 can simply be replaced on the top of the top cover 1. Figure 23 and Figure 24 As shown, the electromagnet 11 can also be fixedly installed inside the top cover 1, that is, the top surface of the electromagnet 11 is fixed on the top surface of the top cover 1. In this way, when the volume of the electromagnet 11 can be accommodated inside the top cover 1, it can bring a better appearance and occupy less space. The moving part 21, gear disk 22, spring 23, gear set 24, double gear 25 and motor 26 are all installed in the closed space between the top cover 1 and the base 2. The worm gear 32 and worm A31 are installed on the bottom cover 3. The lower end of the worm A31 extends out to connect to external parts. The worm gear 32 has a square hole B321 in the middle that connects to the outside.

[0056] like Figure 12As shown, the sunshade transmission structure using the foregoing driving device comprises: a transverse beam 91 and a longitudinal beam 92 connected vertically, the driving device is fixed on the transverse beam 91; a fixing member 61 fixed on the longitudinal beam 92, the fixing member 61 is provided with a fixing shaft 611, further comprising a rotating shaft 51 parallel to the transverse beam 91, one end of the rotating shaft 51 is provided as a square rod B511 which can be sleeved in the square hole B321, the other end is sleeved on the fixing shaft 611, the end of the rotating shaft 51 close to the longitudinal beam 92 is fixedly provided with a rotating bar 52 arranged vertically, the end of the rotating bar 52 is movably connected with a movable bar 53, the other end of the movable bar 53 is movably connected with a series connection bar 54, the series connection bar 54 is parallel to the longitudinal beam 92; a sunshade board 8 and a connecting member 7 fixedly connected with each other, a plurality of groups of the sunshade board 8 and the connecting member 7 are arranged in sequence to form a sunshade canopy top, the connecting member 7 is in Z shape, the connecting member 7 is provided with a connecting hole A71 on the upper part of the main body and a connecting hole B72 on the tail part, the connecting hole A71 is movably connected on the longitudinal beam 92 through a bolt, the connecting hole B72 is movably connected on the series connection bar 54 through a bolt; the worm gear 32 rotates to drive the rotating shaft 51 and the rotating bar 52 to rotate in turn, to push the movable bar 53, the series connection 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 sunshade board 8 to rotate to open and close.

[0057] As shown in the figure, Figures 17-19 The top rear end of the connecting member 7 is provided with a mounting part 73 which is a convex polygon, the top front end of the connecting member 7 is provided with an upward mounting hole 74, the sunshade board 8 comprises a main body part 81 provided in the middle part, the rear end of the main body part 81 is provided as a mounting groove 84, the mounting part 73 is limited in the mounting groove 84, the main body part 81 contains the top part of the connecting member 7 and is fixedly connected with the mounting hole 74 through a screw or a rivet, the sunshade board 8 is provided with a sunshade edge part 82 on the front side of the main body part 81 and a drainage groove 83 on the rear side; the sunshade edge part 82 of one sunshade board 8 abuts against the rear wall of the drainage groove 83 of the sunshade board 8 adjacent to the front side, the sunshade transmission structure stops moving, and the sunshade canopy top is closed; the sunshade board 8 rotates, the sunshade edge part 82 of one sunshade board 8 abuts against the rear wall of the drainage groove 83 of the sunshade board 8 adjacent to the front side, and the sunshade canopy top is opened.

[0058] In order to limit the activity range of the rotating shaft 51, as shown in the figure, Figure 16 The fixing member 61 is provided with a blocking column 612 parallel to the fixing shaft 611, the blocking column 612 is arranged on the side away from the transverse beam 91, and the rotating bar 52 stops moving when it rotates downward to the blocking column 612.

[0059] As shown in the figure, Figure 13 When the sunshade board 8 is closed, the rotating bar 52 is located at the last end, and the sunshade edge part 82 of one sunshade board 8 abuts against the rear wall of the drainage groove 83 of the sunshade board 8 adjacent to the front side;

[0060] As shown in the figure, Figure 14As shown, when the sunshades 8 start to open, the rotating bars 52 rotate forward from the last end, and push the connecting pieces 7 to rotate around the connecting holes A71 as the axis, and the edges 82 of one sunshade 8 gradually separate from the rear wall of the drainage groove 83 of the sunshade 8 adjacent to the front side, and due to the self-locking effect of the worm and the gear, the power disappears, the connecting pieces 7 stop rotating immediately, and the sunshade 8 is fixed at a certain angle, preferably, the rotating angle of the sunshade 8 is 90 degrees;

[0061] As shown in the figure, Figure 14 As shown, when the sunshades 8 rotate to 90 degrees, they are in the fully open state, and at this time, the rotating bars 52 stop moving by abutting against the blocking columns 612.

[0062] From the above description, it can be seen that the above-mentioned embodiments achieve 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 selected in multiple ways, it is convenient to use, and the transmission efficiency is high.

[0063] The above is only a demonstrative embodiment of the present application, and is not used to limit the protection scope of the present application, and the protection scope of the present application is determined by the appended claims.

Claims

1. A driving device comprising a longitudinally arranged worm A (31) and a transversely arranged worm wheel (32), the worm A (31) rotating to drive the worm wheel (32) to rotate correspondingly, and a motor (26), a rotating shaft of the motor (26) being arranged as a worm B (261), characterized in that, The upper end rod part of the worm A (31) is provided as a square rod A (311), and further comprises: An electromagnet (11) is electrically connected in series with the motor (26), a through hole is formed in the middle of the electromagnet (11), and an iron disc (12) is arranged on the top surface of the electromagnet (11), the top rod (13) is fixedly connected to the iron disc (12) and penetrates the middle of the electromagnet (11) and can move up and down together with the iron disc (12); A movable part (21) is provided with a contact surface A (212) at the lower end, a plurality of convex teeth A (2121) are arranged on the surface of the contact surface A (212), a square hole A (211) is arranged in the middle of the movable part (21) and opens downward, the square rod A (311) can be fitted into the square hole A (211), and the upper end of the movable part (21) abuts against the lower end of the top rod (13); A gear disc (22) is provided with gear teeth on the outer side and a contact surface B (221) on the upper side, a plurality of convex teeth B (2211) are arranged on the surface of the contact surface B (221), and a through hole (222) is arranged in the middle of the contact surface B (221) and can be passed through by the column of the worm B (261); A double gear (25) is provided with an upper gear (251) and a lower gear (252) on the upper and lower sides, and the upper gear (251) is engaged with the worm B (261); A gear set (24) is engaged with the lower gear (252) and the gear disc (22) respectively to realize transmission of power of the motor (26); A spring (23) abuts against the gear disc (22) at the lower end and abuts against the movable part (21) at the upper end; In the default state, the movable part (21) is away from the gear disc (22) under the elastic support of the spring (23), the iron disc (12) is away from the electromagnet (11) synchronously, the convex teeth B (2211) do not hinder the movement of the convex teeth A (2121), the worm A (31) is manually rotated to provide power to drive the worm gear (32) to rotate, the power is turned on, the electromagnet (11) and the motor (26) work synchronously, the electromagnet (11) generates a magnetic force to attract the iron disc (12) to drive the top 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 engaged in an interlaced manner, the motor (26) is rotated to drive the gear disc (22), the movable part (21) and the worm A (31) in sequence through the double gear (25) and the gear set (24), and finally drives the worm gear (32) to rotate to provide power, and the driving device returns to the default state after the power is turned off.

2. A drive 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 flat top surfaces, and after being 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 and simultaneously.

3. The drive apparatus according to claim 1, wherein The convex tooth A (2121) is a sawtooth-shaped component with a plurality of downward protruding teeth arranged in a ring on the surface of the contact surface A (212), and the convex tooth B (2211) is a sawtooth-shaped component with a plurality of upward protruding teeth arranged in a ring on the surface of the contact surface B (221), and the convex tooth A (2121) and the convex tooth B (2211) are arranged in correspondence with each other, and after relative movement, the convex tooth A (2121) and the convex tooth B (2211) can be meshed and limited.

4. A drive arrangement according to claim 2 or 3, characterised in that, It also includes a top cover (1), a base (2) and a bottom cover (3), the top cover (1) and the bottom cover (3) are respectively buckled with the base (2) at the upper and lower ends through bolts or rivets, the electromagnet (11) is fixedly arranged inside or on the outside top of the top cover (1), the movable part (21), the gear disc (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 worm gear (32) and the worm A (31) are arranged on the bottom cover (3), the lower end of the worm A (31) is protruded for external components, and the square hole B (321) communicating with the outside is arranged in the middle of the worm gear (32).

5. A drive device according to claim 4, characterized in that The annularly arranged step (223) lower than the contact surface B (221) is arranged in the through hole (222), and the lower end of the spring (23) abuts against the step (223).

6. A drive device according to claim 5, characterized in that The gear set (24) is a reduction gear set to obtain greater torque, and the teeth of the worm gear (32) and the upper gear (251) are all helical teeth.

7. A drive device according to claim 6, characterized in that It also includes a hand lever (4), the hand lever (4) can be connected with the worm B (261), the lower end of the jacking rod (13) is provided with a limiting head (131), and the diameter of the limiting head (131) is greater than the hole diameter of the middle part of the electromagnet (11).

8. A sunroof transmission structure using the driving device of claim 7, characterized in that, comprising: vertically connected cross beams (91) and longitudinal beams (92), and the driving device is fixed on the cross beams (91); A fixing part (61) fixed on the longitudinal beam (92), the fixing part (61) is provided with a fixing shaft (611), further comprising a rotating shaft (51) parallel to the cross beam (91), one end of the rotating shaft (51) is provided as a square rod B (511) which can be sleeved in the square hole B (321), the other end is sleeved on the fixing shaft (611), the end of the rotating shaft (51) close to the longitudinal beam (92) is fixedly provided with a rotating strip (52) vertically, the end of the rotating strip (52) is movably connected with a movable strip (53), the other end of the movable strip (53) is movably connected with a series connection strip (54), the series connection strip (54) is parallel to the longitudinal beam (92); The sunshade board (8) and the connecting piece (7) are fixedly connected with each other, and a plurality of groups of the sunshade board (8) and the connecting piece (7) are arranged in sequence to form a sunshade canopy top, the connecting piece (7) is Z-shaped, the connecting piece (7) is provided with a connecting hole A (71) on the upper part of the main body and a connecting hole B (72) on the tail part, the connecting hole A (71) is movably connected with the longitudinal beam (92) through a bolt, and the connecting hole B (72) is movably connected with the series connection strip (54) through a bolt; The rotating of the worm gear (32) drives the rotating of the rotating shaft (51) and the rotating strip (52) in sequence, and drives the front and back movement of the movable strip (53), the series connection strip (54) and the connecting hole B (72), so that the rotating of the connecting piece (7) around the connecting hole A (71) drives the rotating opening and closing of the sunshade board (8).

9. A sunroof transmission structure according to claim 8, wherein The fixing part (61) is provided with a blocking column (612) parallel to the fixing shaft (611), the blocking column (612) is arranged on the side away from the cross beam (91), and the rotating strip (52) stops moving when being rotated downward to the blocking column (612).

10. The sunshade canopy transmission structure according to claim 8, wherein, The connecting piece (7) is provided with a mounting part (73) at the top rear end, the mounting part (73) is a convex polygon, the connecting piece (7) is provided with an upward mounting hole (74) at the top front end, the sunshade board (8) comprises a main body part (81) arranged in the middle, the main body part (81) is provided with a mounting groove (84) at the rear end, the mounting part (73) is limited in the mounting groove (84), the main body part (81) contains the top of the connecting piece (7) and is fixedly connected with the mounting hole (74) through a screw or a rivet, the sunshade board (8) is provided with a sunshade edge part (82) at the front side of the main body part (81) and a drainage groove (83) at the rear side; The sunshade edge part (82) of one sunshade board (8) abuts against the rear wall of the drainage groove (83) of the sunshade board (8) adjacent to the front side, the sunshade canopy transmission structure stops moving, and the sunshade canopy top is closed; the sunshade board (8) is rotated, the sunshade edge part (82) of one sunshade board (8) abuts against the rear wall of the drainage groove (83) of the sunshade board (8) adjacent to the front side, and the sunshade canopy top is opened.

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