Double-shaft single-drive self-traction sunshade device

Abstract

The utility model discloses a double-shaft single-drive self-traction sun-shading device which comprises a driving mechanism which is in driving connection with reels, the rear end of a sun-shading curtain is fixedly connected with the reels and can be wound around the reels, the two reels are arranged in parallel at intervals, namely a main reel and an auxiliary reel, the main reel and the auxiliary reel are respectively provided with teeth, the teeth are connected with a synchronous belt, and the synchronous belt is connected with the sun-shading curtain. And the rear end of the sunshade curtain is fixed on the synchronous belt. The main reel rotates and rotates synchronously with the auxiliary reel, the sunshade curtain is wound on the double shafts to be in an oval shape, and the cover shell is low in height. Winding and traction of the sunshade curtain are completed through driving of the single motor, cost is reduced, the structure is simple, and faults are few; meanwhile, compared with a single-shaft furling cover shell, the height is reduced; and compared with compression stacking, the width is reduced, and the exhibition is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to sunshade device field, especially in dual axle single drive self -traction sunshade device. BACKGROUND

[0002] Sunshade curtain is generally received by single axle winding mode, the cover shell height of sunshade curtain is relatively large, normal sunshade curtain 2.2 meters below cover shell height 260mm, width 275mm, 2.2~3.2mm cover shell height 310mm, width 310mm, 3.2~5.2mm cover shell height 370mm, width 355mm, 5.2~7.5mm cover shell height 430mm, width 425mm, the longer sunshade curtain is, the higher cover shell is, and installation space is limited, and also affects the appearance, roof sunshade curtain winding adopts single axle winding, and generally adopts double motor drive due to traction direction and stress consideration, one motor is responsible for winding, and the other motor is responsible for sunshade curtain traction.Currently, roof sunshade curtain winding conventionally has another kind of compression stacking.Sunshade curtain is received by compression stacking mode, and the folding thickness of sunshade curtain is relatively wide, 2-meter sunshade curtain folding width 326mm, 3-meter sunshade curtain folding width 430mm, 4-meter sunshade curtain folding width 534mm, 5-meter sunshade curtain folding width 612mm, 6-meter sunshade curtain folding width 716mm, 7-meter sunshade curtain folding width 820mm, the longer sunshade curtain is, the wider folding width is, and the sky cannot be fully exposed.At the same time, roof sunshade is in outdoor, and some branches, leaves, bird feathers and other sundries will fall on sunshade curtain, which can be stuck in sunshade curtain and easily damage the device. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides a dual axle single drive self -traction sunshade device, and single motor drive completes sunshade curtain winding and traction, reduces cost, and is simple in structure and less in failure; at the same time, the sunshade curtain is wound on the two shafts in an elliptical shape, the cover shell height is reduced relative to the conventional single axle winding, and the width is reduced relative to the compression stacking.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The single drive self -traction sunshade device comprises a driving mechanism, a winding shaft is drivenly connected, the rear end of a sunshade curtain is fixedly connected with the winding shaft and can be wound around the winding shaft, two winding shafts, i.e., a main winding shaft and an auxiliary winding shaft, are arranged in parallel at intervals, teeth are arranged on the main winding shaft and the auxiliary winding shaft respectively, a synchronous belt is connected to the teeth, and the rear end of the sunshade curtain is fixed on the synchronous belt.The main winding shaft rotates synchronously with the auxiliary winding shaft, the sunshade curtain is wound on the two shafts in an elliptical shape, and the cover shell height is low.

[0006] Further improvement is that the two ends of the auxiliary spool are drivingly connected with the winding disc, pulley one and pulley two are installed on the two side rails at the front end of the stretched and laid sunshade curtain, spring is arranged on the middle section of the two side rails, the free end of the spring is connected with pulley three, the free end of the traction line wound on the winding disc passes pulley one, pulley three and pulley two in sequence and is fixed on the tail rod at the front end of the sunshade curtain; the driving mechanism drives the main spool to rotate through the synchronous belt to drive the auxiliary spool to rotate, the auxiliary spool synchronously drives the winding disc to wind or unwind the traction line to drive the sunshade curtain to move.

[0007] When the sunshade curtain is laid on the roof, the main spool is positively rotated, the sunshade curtain is wound on the main spool and the auxiliary spool under the traction of the synchronous belt, and the traction line wound on the winding disc is stretched and unwound by the tail rod of the sunshade curtain; when the main spool is reversely rotated, the auxiliary spool reversely drives the winding disc to wind the traction line, the spring adjusts the synchronous difference of the traction line in the running process, the tension of the spring keeps the traction line in a tight state, so that the torque generated by the driving mechanism is fully applied to the traction of the sunshade curtain, and the sunshade curtain is smoothly stretched.

[0008] Further improvement is that the surface of the spool is axially provided with teeth with the same length as the shaft. The spool and the teeth on the shaft are integrally formed.

[0009] Another improvement is that the surface of the spool is an optical axis, and the optical axis is sleeved with a synchronous wheel with teeth.

[0010] Further improvement is that the middle sections of the main spool and the auxiliary spool are connected with a stabilizing frame, the stabilizing frame comprises a connecting rod and ball bearing sleeves at the two ends of the connecting rod, and the main spool and the auxiliary spool are movably arranged in the two ball bearing sleeves. When the main spool and the auxiliary spool are relatively long, they are easily deformed in the traction movement of the synchronous belt, so the stabilizing frame is connected between the two spools to support them, the rotation of the spools is not affected, and the hard support of the connecting rod between the two spools ensures that the long spools are not deformed.

[0011] Further improvement is that the main spool, the auxiliary spool and the winding disc are installed in a cover A.

[0012] Further improvement is that a brush is arranged on the upper side of the entrance and exit of the sunshade curtain on the front side of the cover A. The brush sweeps the sundries on the sunshade curtain before the sunshade curtain is retracted into the cover, so as to prevent the sundries from being damaged by being clamped in the sunshade curtain.

[0013] Further improvement is that covers B are arranged on the two sides of the sunshade curtain, and the side rails, the pulleys, the springs, the traction lines and the two side edges of the sunshade curtain are hidden in the covers B.

[0014] Further improvement is that the side rails are provided with traction line running constraint members.

[0015] Further improvement is that the driving mechanism is an electric motor or a manual traction mechanism. The electric motor or the manual traction mechanism can be used. Beneficial effects

[0016] First, compared with dual-motor single-axis winding, this device only requires one drive motor, which reduces costs; at the same time, the dual-axis winding sunshade is elliptical, with higher load-bearing capacity and reduced housing height; and the width is reduced compared with compression stacking.

[0017] 2. This device can complete the rolling up and flat traction of the sunshade curtain with a single drive. It has a simple structure, low failure rate, and is easy to maintain.

[0018] 3. When the sunshade is rolled up into the housing, the brush on the top of the housing removes any fallen debris and eliminates any malfunctions in the device. Attached Figure Description

[0019] Figure 1 This is a top view of Example 1;

[0020] Figure 2 for Figure 1 Remove the top view of the casing;

[0021] Figure 3 This is a schematic diagram of the end face of the scroll;

[0022] Figure 4 This is a schematic diagram of the end face structure connecting the stabilizer and the reel;

[0023] Figure 5 This is a schematic diagram of Example 2. Detailed Implementation Example

[0024] like Figures 1 to 4 As shown, this utility model includes two parallel rollers 2, namely a main roller 21 and a secondary roller 22. The surfaces of the main roller 21 and the secondary roller 22 are axially provided with teeth 23 of the same length as the shaft (or the roller surface can be a smooth shaft with a synchronous pulley fitted on it). Synchronous belts 4 are connected to the teeth 23 at both ends of the main roller 21 and the secondary roller 22. The rear end of the sunshade curtain 3 (indicated by point B) is fixed to the synchronous belt 4. The two ends of the secondary roller 22 are driven by winding discs 5, which are connected to the front end of the stretched-out sunshade curtain (…). (Point A indicates this) Both sides of the side rails 11 are equipped with pulley 1 61 and pulley 2 62. A spring 12 is installed in the middle section of both side rails. The free end of the spring 12 is connected to pulley 3 63. The free end of the traction line 51 wound on the winding reel 5 passes through pulley 1 61, pulley 3 63, and pulley 2 62 in sequence and is then fixed to the tail rod 31 at the front end of the sunshade curtain. The drive mechanism 1 drives the main roller 21 to rotate, which in turn drives the auxiliary roller 22 to rotate via the synchronous belt 4. The auxiliary roller 22 synchronously drives the winding reel to wind up and unwind the traction line, thus moving the sunshade curtain 3. The side rails 11 are equipped with traction line direction constraint members 14 to constrain the direction of the traction line.

[0025] The driving mechanism 1 can be an electric motor or a manual pulling mechanism. In this embodiment, it is an electric motor hidden in the main roller. The motor drives the main roller 21 to rotate in the positive direction, which drives the auxiliary roller 22 to rotate through the synchronous belt 4. The sunshade curtain is wound around the main roller and the auxiliary roller under the traction of the synchronous belt. At the same time, the traction line is stretched by the sunshade curtain, and the winding disc 5 releases the traction line. The sunshade curtain has a 3.5-meter cover with a height of 200 mm and a width of 300 mm. The sunshade curtain has a 5.5-meter cover with a height of 260 mm and a width of 370 mm. The sunshade curtain has a 7.5-meter cover with a height of 300 mm and a width of 400 mm. Compared with the single-axis winding form, the cover height is significantly reduced. Compared with the compression stacking, the cover width is significantly reduced.

[0026] When the motor drives the main roller to reverse, the auxiliary roller drives the winding disc to reverse and wind the line. Under the action of the spring, the synchronous difference generated in the running process of the traction line is adjusted. The tension of the spring will always keep the traction line in a tight state, so that the torque generated by the driving mechanism is fully applied to the traction of the sunshade curtain, and the sunshade curtain is smoothly stretched.

[0027] When the main roller 21 and the auxiliary roller 22 are relatively long, the teeth 23 at the middle segment of the main roller 21 and the auxiliary roller 22 are also connected with the synchronous belt 4, so that the left and right sides of the sunshade curtain are synchronized. However, the main roller 21 and the auxiliary roller 22 are prone to bending and deforming between them after a period of operation under the traction of the synchronous belt 4. Therefore, a stabilizing frame 8 is connected to the middle segment of the main roller 21 and the auxiliary roller 22. The stabilizing frame 8 includes a connecting rod 81 and ball bushings 82 at both ends of the connecting rod 81. The main roller 21 and the auxiliary roller 22 are movably installed in the ball bushings 82, as shown in Figure 4 .

[0028] The main roller 21, the auxiliary roller 22, and the winding disc 5 are installed in the cover A 91. A brush 8 is arranged on the upper edge of the sunshade curtain inlet and outlet at the front side of the cover A 91.

[0029] The sunshade curtain 3 is provided with a cover B 92 on both sides. The edge rail 11, the pulley, the spring 12, the traction line 51, and the sunshade curtain 3 are hidden in the cover B 92.

[0030] The traction belt includes but is not limited to steel wire, steel belt, or composite flexible tensile material. Embodiment

[0031] In the sunshade curtain vertical winding and rolling operation state, the device includes a driving mechanism 1 drivingly connected to a roller 2. The rear end of the sunshade curtain 3 is fixedly connected to the roller 2 and can be wound around the roller. The roller 2 is spaced apart and parallel to two main rollers 21 and auxiliary rollers 22. The main roller 21 and the auxiliary roller 22 are respectively provided with teeth 23. The teeth 23 are connected with a synchronous belt 4. The rear end of the sunshade curtain 3 is fixedly connected to the synchronous belt 4. The double-roller winding sunshade curtain is in an elliptical shape, has higher bearing capacity, and has a reduced cover height.

[0032] The above merely describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A dual-axis single-drive self-traction sunshade device, comprising a drive mechanism (1) driving a connecting roller (2), a sunshade curtain (3) having its rear end fixedly connected to the roller (2) and capable of being rolled up around the roller, characterized in that: The reel (2) is spaced apart and parallel to two, namely the main reel (21) and the auxiliary reel (22), the main reel (21) and the auxiliary reel (22) are respectively provided with teeth (23), the teeth (23) are connected with the synchronous belt (4), and the rear end of the sunshade curtain (3) is fixed on the synchronous belt (4).

2. The dual axis, single drive, self-tracting solar shading device of claim 1, wherein: The auxiliary reel (22) is drivingly connected with the winding disc (5) at both ends, pulley one (61) and pulley two (62) are mounted on both sides of the front end rail (11) of the stretched and laid sunshade curtain, a pullable spring (12) is arranged on the two side rails, the free end of the spring (12) is connected with pulley three (63), the free end of the traction line (51) wound on the winding disc (5) passes through pulley one (61), pulley three (63) and pulley two (62) in sequence and is fixed on the tail rod (31) at the front end of the sunshade curtain; the driving mechanism (1) drives the main reel (21) to rotate, and the auxiliary reel (22) is driven to rotate by the synchronous belt (4), and the auxiliary reel (22) synchronously drives the winding disc to wind and unwind the traction line to drive the sunshade curtain (3) to move.

3. Double-axle single drive self-towing sunblind according to claim 1 or 2, characterized in that: The reel (2) is provided with teeth (23) with the same length as the shaft in the axial direction of the surface; or the surface of the reel (2) is an optical axis, and the optical axis is sleeved with a synchronous wheel provided with teeth (23).

4. The dual axis, single drive, self-tracting solar shading device of claim 2, wherein: The main reel (21) and the auxiliary reel (22) are connected with a stabilizing frame (8) at the middle segment position, the stabilizing frame (8) comprises a connecting rod (81) and ball bearing sleeves (82) at both ends of the connecting rod (81), and the main reel (21) and the auxiliary reel (22) are movably arranged in the two ball bearing sleeves (82) respectively.

5. The dual axis, single drive, self-tracting solar screen of claim 2, wherein: The main reel (21), the auxiliary reel (22) and the winding disc (5) are mounted in the cover shell A (91).

6. The dual axis, single drive, self-tracting solar shading device of claim 5, wherein: A brush (10) is arranged on the upper side of the sunshade curtain inlet and outlet on the front side of the cover shell A (91).

7. The dual axis, single drive, self-tracting solar screen of claim 2, wherein: Cover shells B (92) are arranged on both sides of the sunshade curtain (3), the side rail (11), the pulley, the spring (12), the traction line (51) and the sunshade curtain (3) on the side rail (11) are all hidden in the cover shell B (92).

8. The dual axis, single drive, self-tracting solar screen of claim 2, wherein: The side rail (11) is provided with a traction line running direction constraint member (14).

9. The dual-axis, single-drive, self-tracting solar shading device of claim 1, wherein: The driving mechanism (1) is an electric motor or a manual pulling mechanism.

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