Gear shifting driving structure for awning and awning

Abstract

The utility model provides an awning and a gear-shifting driving structure for the awning, and belongs to the field of sunshade equipment, the gear-shifting driving structure comprises a gear-shifting structure and a one-way transmission structure, the gear-shifting structure is provided with a plurality of gears corresponding to different speeds and forces, and the gear-shifting structure is respectively in transmission connection with a power source and an application end. The power received from the power source is converted into the speed and the force corresponding to the gear according to the setting of the gear and then is output to the application end; the one-way transmission structure is installed between an application end and a power source and used for forward one-way transmission and locking and stopping reverse transmission, a gear shifting structure is arranged between the application end and the power source, the combination of transmission gears is changed through the gear shifting structure, speed increasing or force increasing gears are selected according to different scenes, different requirements are met, and the application end and the power source are integrated. And the use experience and the size upper limit of the awning are improved.

Description

Technical Field

[0001] The utility model belongs to the field of sunshade equipment, in particular to a gear-changing driving structure for a sunshade awning, and also to a sunshade awning using the gear-changing driving structure. Background Art

[0002] Sunrooms, skylights of some buildings, patios or rooftop trellises all use awnings to block the sun and water. Retractable awnings are popular because they can be retracted and opened to obtain better ventilation. However, the current manual retractable awnings do not have the function of shifting gears. If the transmission gearbox is configured as a power-enhancing gearbox, the awning's retraction speed will be slow, which is not suitable for larger awnings. If the transmission gearbox is configured as a high-speed gearbox, a greater force is required to drive the retraction, which makes the user experience of people with less strength poor.

[0003] In addition, the telescopic and flip venetian blind awning has two actions: telescopic and flipping. Compared with the telescopic process, the blade flipping process requires greater force, but its stroke is very short. Obviously, there is also a need to balance speed and strength to ensure the user experience. Utility Model Content

[0004] Based on the above problems in the prior art, the utility model provides a gear shifting drive structure for a sunshade, which includes

[0005] A gear shift structure, wherein the gear shift structure is provided with a plurality of gears corresponding to different speeds and forces, the gear shift structure is respectively connected to the power source and the application end, and according to the setting of the gear, the power received from the power source is converted into the speed and force corresponding to the gear and then outputted to the application end;

[0006] The one-way transmission structure is installed between the application end and the power source, and is used for forward one-way transmission and locking to prevent reverse transmission.

[0007] Wherein, the one-way transmission structure is a worm gear transmission structure, the worm end is transmission connected to the power source, and the worm gear end is transmission connected to the application end.

[0008] The gear shifting structure comprises a mounting frame, an input shaft and an output shaft are rotatably mounted on the mounting frame, an input pinion is fixedly mounted on the input shaft and an input gear is rotatably mounted on the input shaft, an output pinion is fixedly mounted on the output shaft and an output gear is rotatably mounted on the output shaft, the diameters of the input gear and the output gear are larger than those of the input pinion and the output pinion, the input gear and the output pinion are meshed, the output gear and the input pinion are meshed, a gear shift paddle is slidably mounted between the input gear and the output gear, an input transmission ring and an output transmission ring are rotatably mounted on the gear shift paddle, the input transmission ring and the input shaft are slidably connected to each other in a non-rotatable manner, the output transmission ring and the output shaft are slidably connected to each other in a non-rotatable manner, matching contact transmission structures are arranged on the input transmission ring and the input gear, matching contact transmission structures are arranged on the output transmission ring and the output gear, the sliding of the gear shift paddle drives the input transmission ring and the input gear to be in contact and transmission connection and the output transmission ring and the output gear are disengaged from each other, or drives the output transmission ring and the output gear to be in contact and transmission connection and the input transmission ring and the input gear are disengaged from each other.

[0009] The contact transmission structure is a clamping column and a matching clamping hole. The two ends of the transmission connection are respectively provided with a clamping column and a clamping hole, and the transmission connection is achieved by inserting the clamping column into the clamping hole.

[0010] Wherein, a sliding shaft is fixedly arranged on the mounting frame, a sliding sleeve matching the sliding shaft is fixedly arranged on the gear shift paddle, and the gear shift paddle is slidably sleeved onto the sliding shaft via the sliding sleeve.

[0011] Wherein, a return spring for pressing the gear paddle toward the input gear is mounted on the sliding shaft.

[0012] The gear-changing drive structure for the awning further comprises an acceleration gearbox, the input end of the acceleration gearbox is transmission-connected to the power source, and the output end of the acceleration gearbox is transmission-connected to the application end.

[0013] The utility model also provides a sunshade, which is equipped with the gear-changing driving structure as described above, and the application end is a sunshade curtain or a telescopic shutter structure.

[0014] Among them, the telescopic shutter structure includes a frame, a plurality of blades and a flip linkage structure, the flip linkage structure includes a plurality of rocker arms, one end of the rocker arm is rotatably connected to the frame, and the other end of the rocker arm is rotatably connected to the limit rail; the blade is provided with a power shaft and a parallel axis, the blade is rotatably connected to a pulley through the power shaft, the pulley is slidably installed on the frame, and the pulley of the first blade is connected to the gear shifting drive structure through the coordinated transmission of a closed-loop chain and a reversing gear, and adjacent blades are connected by steel cables; the parallel axis of the last blade is rotatably connected to the limit rail, and the parallel axes of the remaining blades and the limit rail are rotatably and slidably connected to the limit rail.

[0015] The utility model has the beneficial effects:

[0016] 1. A shifting structure is set between the application end and the power source. The combination of transmission gears is changed by the shifting structure to select the speed increase or power increase gear according to different scenarios. Combined with the one-way transmission structure to prevent reverse transmission, it can meet different needs and improve the user experience and the upper limit of the size of the awning.

[0017] 2. The gear paddle is slidably sleeved onto the sliding shaft through a sliding sleeve, which can improve the sliding stability and smoothness of the gear paddle and enhance the user experience; at the same time, a reset spring is provided to enable automatic reset to a more commonly used high-speed gear, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional structural schematic diagram of a gear-changing drive structure for an awning.

[0019] Figure 2 It is a schematic diagram of the coordination of the gear shifting structure and the one-way transmission structure, the speed increasing gear.

[0020] Figure 3 It is a schematic diagram of the coordination of the gear shifting structure and the one-way transmission structure, the power-enhancing gear.

[0021] Figure 4 It is an exploded diagram of the gearshift mechanism, with the mounting bracket hidden.

[0022] Figure 5 This is a schematic diagram of the gear matching of the speed increaser.

[0023] Figure 6 It is a schematic diagram of the structure of the shutter awning, flipped open.

[0024] Figure 7 It is a schematic diagram of the structure of the blind awning in the retracted state.

[0025] Figure 8 It is a schematic diagram of the structure of the shutter awning, in the extended, flipped and closed state.

[0026] Fig. 9 yes Figure 8 Enlarged view of point A.

[0027] Fig.10 It is a schematic diagram of the coordination of the frame, blades and flip linkage structure of the shutter awning, in the flip-open state.

[0028] Fig.11 It is a planar coordination diagram of the frame, blades and flip linkage structure of the shutter awning, in the flip-open state.

[0029] Fig.12It is a planar coordination diagram of the frame, blades and flip linkage structure of the shutter awning, in the flip-closed state.

[0030] Fig.13 It is a schematic diagram of the transmission connection between the acceleration gear box and the blades. DETAILED DESCRIPTION

[0031] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Embodiment 1: A gear-changing drive structure for an awning.

[0033] As attached Figure 1-5A shifting drive structure for an awning is shown, which includes a one-way transmission structure 1, a shifting structure 2 and an acceleration gear box 3. The one-way transmission structure 1 is a worm gear transmission structure. The worm end 4 is connected to the power source in a transmission manner. The power source can be a hand crank or a drive motor. The worm gear end 5 is connected to the shifting structure 2 in a transmission manner. It is used for forward one-way transmission and locks to prevent reverse transmission, so as to avoid recoil to the power source when the reaction force at the application end is too large. The shifting structure 2 is provided with two gears corresponding to different speeds and forces, and the two gears are a high-speed gear and a power-increasing gear. The shifting structure 2 includes a mounting frame 6 composed of two mounting plates and four connecting bolts. An input shaft 7 and an output shaft 8 are rotatably installed on the mounting frame 6. The input shaft 7 and the one-way transmission structure 1 is connected to the worm gear transmission, the output shaft 8 is connected to the acceleration gear box 3, the output end of the acceleration gear box 3 is connected to the application end, the input shaft 7 is fixedly installed with an input pinion 9 and a rotatable input gear 10, the output shaft 8 is fixedly installed with an output pinion 11 and a rotatable output gear 12, the diameters of the input gear 10 and the output gear 12 are larger than the input pinion 9 and the output pinion 11, the input gear 10 is meshed with the output pinion 11, the output gear 12 is meshed with the input pinion 9, a gear shift paddle 13 is slidably installed between the input gear 10 and the output gear 12, a sliding shaft 14 is fixedly provided on the mounting frame 6, and the gear shift paddle 13 is fixedly installed with a gear matching the sliding shaft 14 The sliding sleeve 15 can not only improve the stability of sliding, but also play a role in limiting. The gear paddle 13 is slidably sleeved on the sliding shaft 14 through the sliding sleeve 15, and the sliding shaft 14 is provided with a return spring 16 for pressing the gear paddle 13 toward the input gear 10. An input transmission ring 17 and an output transmission ring 18 are rotatably installed on the gear paddle 13. The input transmission ring 17 and the input shaft 7 are non-rotatably slidingly connected, and the output transmission ring 18 and the output shaft 8 are non-rotatably slidingly connected. A vertical latch can be fixedly set on the input shaft 7 and the output shaft 8, and a sliding groove matching the latch can be set on the input transmission ring 17 and the output transmission ring 18 to achieve a non-rotatably sliding connection; the input transmission ring 17 and the output transmission ring 18 are non-rotatably slidingly connected. The output transmission ring 18 is provided with four circumferentially arranged clamping columns 19, and the input large gear 10 and the output large gear 12 are provided with four clamping holes 20 that match the corresponding clamping columns 19. The clamping columns 19 and the clamping holes 20 form a contact transmission structure, and the contact transmission connection is realized by inserting the clamping columns 19 into the clamping holes 20. The sliding of the gear shift paddle 13 drives the input transmission ring 17 and the input large gear 10 to be in contact and transmission connection, and the output transmission ring 18 and the output large gear 12 are separated from each other, or drives the output transmission ring 18 and the output large gear 12 to be in contact and transmission connection, and the input transmission ring 17 and the input large gear 10 are separated from each other. The gear shift structure 2 converts the power received from the power source into the speed and force corresponding to the gear according to the gear setting, and then outputs it to the application end;The acceleration gearbox 3 is provided with a plurality of acceleration gears 21, which are composed of two coaxially arranged gears with different diameters. From the input end to the output end, the small gear of the acceleration gear 21 meshes with the large gear of the previous acceleration gear 21, and the large gear of the acceleration gear 21 meshes with the small gear of the next acceleration gear 21, thereby achieving speed increase. ;

[0034] The gear shift drive structure provided in this embodiment can change the combination of gears according to different needs when in use. When rapid movement is required, such as rapid extension and retraction, the shift paddle 13 is turned to make the input transmission ring 17 and the input large gear 10 contact and connect for transmission, and the large gear drives the small gear to achieve speed increase. At the same time, due to the setting of the one-way transmission structure 1, even if the force at the application end is large, it will not form a reverse effect on the power source through the transmission of the transmission gear; when strong drive is required, such as the blades 24 of the awning flipping or the operator has less strength, the shift paddle 13 is turned to make the output transmission ring 18 and the output large gear 12 contact and connect for transmission, and the small gear drives the large gear to achieve force increase.

[0035] In this embodiment, since the return spring 16 is provided, the shift paddle 13 will automatically remain in the high gear under the action of the return spring 16. When a large force is required to drive, the shift paddle 13 is moved to switch to the boost gear. When a large force is not required to drive, the shift paddle 13 is released and the shift paddle 13 automatically returns to the high gear. In practical applications, the shift paddle 13 can also be driven to remain in the boost gear by the return spring 16 according to different needs to meet different needs.

[0036] Embodiment 2: A retractable awning.

[0037] As attached Figure 1-13 The awning shown in the figure has four columns 22, on which a rectangular frame 23 is mounted, on which twenty-six blades 24 and a flip linkage structure 28 are mounted, and the blades 24 and the flip linkage structure 28 form a telescopic shutter structure, in which a shift drive structure as described in the first embodiment is mounted in one of the columns 22, and the worm end 4 of the shift drive structure extends out of the column 22 and can be used to connect a hand crank. At the same time, a shift handle 25 is provided on the column 22, which is connected to the shift paddle 13 and used to shift the shift paddle 13.

[0038] Slide rails 26 are provided on both sides of the frame 23, and twenty-six pulleys 27 are slidably provided on each of the two slide rails 26. The corresponding pulleys 27 on the slide rails 26 on both sides are rotatably connected to the same blade 24, and each of the two ends of each blade 24 is rotatably connected to a pulley 27, and the blade 24 is slidably installed on the slide rails 26 through the pulleys 27; the frame 23 is fixedly provided with a flip linkage structure 28 on the outer surface of one side close to the blade 24, and the flip linkage structure 28 includes four rocker arms 29, one end of the rocker arms 29 is rotatably connected to the frame 23, and the other ends of the four rocker arms 29 are rotatably connected to the same limit rail 30. The blade 24 is provided with a power shaft, which is rotatably connected to the pulley 27, and the pulley 27 is further connected to the gear shift drive structure. The pulley 27 is driven by a hand crank through the gear shift drive structure to move and drive the blade 24 to move; the blade 24 is also provided with a parallel shaft below the power shaft, and the ends of both ends of the parallel shaft are provided with parallel wheels 31 adapted to the limit rail 30, and the parallel wheels 31 can be directly replaced by bearings, and the parallel wheels 31 on the same side of all blades 24 are inserted into the same limit rail 30, and the parallel wheels 31 can slide in the limit rail 30, and each parallel shaft is limited by the limit rail 30 to be in the same position in the direction perpendicular to the extension direction of the frame 23, so that the blades 24 can flip synchronously.

[0039] The frame 23 is provided with a sliding area, the sliding area is provided with the sliding rail 26, and the pulley 27 is provided with a translation pulley matching the sliding rail 26; the frame 23 is provided with a transmission area on one side of the sliding area, and a chain rubber sleeve is fixedly installed in the transmission area. The chain rubber sleeve can be made of smooth nylon to ensure smooth and silent movement of the closed-loop chain 32. A chain groove is provided on the chain rubber sleeve, and a part of the closed-loop chain 32 is provided in the chain groove. The closed-loop chain 32 starts from a reversing gear 33 at one end, extends from the other end of the chain groove after passing through the chain groove, and is reversed by another reversing gear 33, and then extends back to the starting point again to form a closed loop, one of the reversing gears 33 is connected to the acceleration gear box 3 for transmission, and the acceleration gear box 3 is provided with a double output shaft 8, and the two output The shaft 8 extends to one of the reversing gears 33 on both sides respectively, so as to provide driving force to both sides synchronously and drive the two closed-loop chains 32 to rotate synchronously; the pulley 27 of the first blade 24 is fixedly connected to one of the sections of the closed-loop chain 32 and serves as an active pulley 27a, and the other pulleys 27 are passive pulleys 27b, with one end of the active pulley 27a as the starting end and the other end as the end. All the pulleys 27 are connected to each other with steel cables 34, and the steel cables 34 at the outermost ends of the ends are fixedly connected to the frame 23, and the passive pulleys 27b are pulled apart in sequence by moving the active pulley 27a and cooperating with the steel cables 34; the parallel axis of the last blade 24 is non-slidingly rotatably connected to the limit rail 30, such as the outer ring of the bearing serving as the parallel wheel 31 is fixedly connected to the limit rail 30, and the inner ring is connected to the parallel axis.

[0040] The operation process of the shutter telescopic awning provided in this embodiment is as follows: when the blades 24 are in a stacked state (i.e., all the blades 24 are turned down and stacked close to one side), the other side is fully opened, and ventilation and sunshine can be enjoyed. When it is necessary to close, the closed-loop chain 32 is driven to rotate by the hand crank, and the active pulley 27a follows and drives the first blade 24 to move. Since the blade 24 is fixedly connected with a steel cable 34, when the active pulley 27a moves to tighten the steel cable 34 between the first blade 24 and the second blade 24, the active pulley 27a continues to move and drives the second blade 24 to move at the same time. Similarly, when the active pulley 27a continues to move, all the blades 24 will be gradually pulled apart due to the action of the steel cable 34, forming the effect of a shutter.

[0041] If the hand crank continues to be shaken, the active pulley 27a will continue to move, and all the blades 24 will have a tendency to continue to move forward. At this time, the gear shift paddle 13 can be toggled by the shift handle 25 to switch the gear to the boost gear, so that the hand crank can be shaken more easily and the closed-loop chain 32 can be driven to rotate. Since the parallel wheel 31 of the last blade 24 has been fixed relative to the limit rail 30, that is, the continued movement of the active pulley 27a will pull the limit rail 30 upward through the blade 24, and the swing of the limit rail 30 will lift the lower part of the blade 24 upward to achieve the effect of flipping and closing the blade 24. At this time, since one end of the last section of the steel cable 34 is fixedly connected to the frame material profile or the frame 23, the blade 24 will not move excessively due to inertia, affecting the use effect.

[0042] Similarly, when it is necessary to open, the active pulley 27a is driven to move in the opposite direction, and the blades 24 swing downward under the action of their own gravity and the thrust of the active pulley 27a, so as to achieve the effect of flipping and opening to form a shutter. At this time, the one-way transmission structure 1 can prevent the blades 24 from suddenly falling and opening, which affects the user experience. If further opening is required, the active pulley 27a is driven to move, so that the active pulley 27a pushes all the pulleys 27 to move in turn, and drives the blades 24 to stack to one side, so as to achieve the effect of stacking and opening.

[0043] The above-mentioned embodiments only express two implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A gear-shifting drive structure for a sunshade, characterized in that: It includes A gear shift structure (2), wherein the gear shift structure (2) is provided with a plurality of gear positions corresponding to different speeds and forces, the gear shift structure (2) is respectively connected to the power source and the application end, and according to the setting of the gear position, the power received from the power source is converted into the speed and force corresponding to the gear position and then outputted to the application end; A one-way transmission structure (1), wherein the one-way transmission structure (1) is installed between an application end and a power source, and is used for forward one-way transmission and locking to prevent reverse transmission.

2. A gear-changing drive structure for an awning according to claim 1, characterized in that: The one-way transmission structure (1) is a worm gear transmission structure, wherein the worm end (4) is transmission-connected to the power source, and the worm gear end (5) is transmission-connected to the application end.

3. The gear-changing drive structure for the awning according to claim 1, characterized in that: The gear shift structure (2) comprises a mounting frame (6), an input shaft (7) and an output shaft (8) are rotatably mounted on the mounting frame (6), an input pinion (9) is fixedly mounted on the input shaft (7) and an input large gear (10) is rotatably mounted on the input shaft (7), an output pinion (11) is fixedly mounted on the output shaft (8) and an output large gear (12) is rotatably mounted on the output shaft (8), the input large gear (10) and the output large gear (12) have diameters greater than the input pinion (9) and the output pinion (11), the input large gear (10) and the output pinion (11) are meshed, the output large gear (12) and the input pinion (9) are meshed, a gear shift paddle (13) is slidably mounted between the input large gear (10) and the output large gear (12), an input gear shift paddle (13) is rotatably mounted on the gear shift paddle (13), and an input gear shift paddle (13) is rotatably mounted on the input gear shift paddle (13). The movable ring (17) and the output transmission ring (18), the input transmission ring (17) and the input shaft (7) are slidably connected so as to be non-rotatable relative to each other, and the output transmission ring (18) and the output shaft (8) are slidably connected so as to be non-rotatable relative to each other. The input transmission ring (17) and the input gearwheel (10) are provided with matching contact transmission structures, and the output transmission ring (18) and the output gearwheel (12) are provided with matching contact transmission structures. The sliding movement of the gear shift paddle (13) drives the input transmission ring (17) and the input gearwheel (10) to be in contact transmission connection and the output transmission ring (18) and the output gearwheel (12) to be disengaged from each other, or drives the output transmission ring (18) and the output gearwheel (12) to be in contact transmission connection and the input transmission ring (17) and the input gearwheel (10) to be disengaged from each other.

4. The gear-changing drive structure for the awning according to claim 3, characterized in that: The contact transmission structure comprises a clamping column (19) and a matching clamping hole (20), and the clamping column (19) and the clamping hole (20) are respectively provided at two ends of the transmission connection, and the transmission connection is achieved by inserting the clamping column (19) into the clamping hole (20).

5. The gear-changing driving structure for the awning according to claim 3, characterized in that: A sliding shaft (14) is fixedly arranged on the mounting frame (6), a sliding sleeve (15) matching the sliding shaft (14) is fixedly installed on the gear shift paddle (13), and the gear shift paddle (13) is slidably sleeved onto the sliding shaft (14) via the sliding sleeve (15).

6. The gear-changing driving structure for the awning according to claim 5, characterized in that: The sliding shaft (14) is provided with a return spring (16) for pressing the gear shift paddle (13) toward the input gearwheel (10).

7. The gear-changing driving structure for the awning according to claim 1, characterized in that: It also includes an acceleration gear box (3), the input end of the acceleration gear box (3) is transmission-connected to a power source, and the output end of the acceleration gear box (3) is transmission-connected to an application end.

8. A sunshade, characterized in that: It is equipped with a gear-changing drive structure as described in any one of claims 1-7.

9. The awning according to claim 8, characterized in that: The application end is a sunshade curtain or a retractable blind structure.

10. The awning according to claim 9, characterized in that: The telescopic shutter structure comprises a frame (23), a plurality of blades (24) and a flip linkage structure (28). The flip linkage structure (28) comprises a plurality of swing rods (29). One end of the swing rod (29) is rotatably connected to the frame (23), and the other end of the swing rod (29) is rotatably connected to a limit rail (30). The blade (24) is provided with a power shaft and a parallel shaft. The blade (24) is rotatably connected to a pulley (27) through the power shaft. The pulley (27) is slidably mounted on the frame (23). The pulley (27) of the first blade (24) is connected to the gear shift drive structure through the cooperation of a closed-loop chain (32) and a reversing gear (33). Adjacent blades (24) are connected by a steel cable (34). The parallel shaft of the last blade (24) is rotatably connected to the limit rail (30), and the parallel shafts of the remaining blades (24) and the limit rail (30) are rotatably and slidably connected to the limit rail (30).

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