Double-shaft single-drive self-traction sunshade device

Abstract

The invention discloses a double-shaft single-drive self-traction sun-shading device which comprises a driving mechanism in driving connection with reels, the rear end of a sun-shading curtain is fixedly connected with the reels, the sun-shading curtain can be rolled up around the reels, the two reels are arranged in parallel at an interval, namely a main reel and an auxiliary reel, teeth are arranged on the main reel and the auxiliary reel respectively, a synchronous belt is connected to the teeth, and the synchronous belt is connected to the main reel and the auxiliary reel. 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 single-motor driving, 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 invention relates to the field of sunshade devices, and in particular to a double-axis single-drive self-traction sunshade device. Background Art

[0002] The sunshade curtain is usually rolled up in a single-axis manner. The height of the cover of the sunshade curtain is relatively high. The cover of a normal sunshade curtain below 2.2 meters is 260mm high and 275mm wide. The cover of 2.2-3.2mm is 310mm high and 310mm wide. The cover of 3.2-5.2mm is 370mm high and 355mm wide. The cover of 5.2-7.5mm is 430mm high and 425mm wide. The longer the sunshade curtain is, the higher the cover is. The installation space is limited and the appearance is also affected. The roof sunshade curtain is rolled up in a single-axis manner. Due to the traction direction and force considerations, it is generally driven by dual motors. One motor is responsible for rolling up and the other motor is responsible for traction of the sunshade curtain. At present, there is another conventional way to roll up the roof sunshade curtain, which is compression stacking. The sunshade is stored in a compressed and stacked manner. The folded thickness of the sunshade is relatively wide. The folded width of a 2-meter sunshade is 326mm, the folded width of a 3-meter sunshade is 430mm, the folded width of a 4-meter sunshade is 534mm, the folded width of a 5-meter sunshade is 612mm, the folded width of a 6-meter sunshade is 716mm, and the folded width of a 7-meter sunshade is 820mm. The longer the sunshade, the wider the folded width, which cannot fully reveal the sky. At the same time, the roof shading is outdoors, and some debris such as branches and leaves, bird feathers, etc. will fall on the sunshade and get stuck in the sunshade, which is easy to damage the device. Summary of the invention

[0003] In response to the problems existing in the prior art, the present invention provides a dual-axis single-drive self-traction sunshade device, which uses a single motor to complete the winding and traction of the sunshade, thereby reducing costs, simplifying the structure, and reducing faults. At the same time, the dual-axis retractable sunshade is elliptical in shape, and the height of the cover is reduced compared to the conventional single-axis retractable sunshade, and the relative compressed stacking width is reduced.

[0004] To achieve the above object, the present invention provides the following technical solutions: The single-drive self-traction sunshade device includes a drive mechanism driving a connecting reel, the rear end of the sunshade is fixedly connected to the reel and can be rolled up around the reel, 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 to a synchronous belt, and the rear end of the sunshade is fixed to the synchronous belt. The main reel rotates synchronously with the auxiliary reel, and the sunshade is wound on the double shafts in an elliptical shape, and the cover height is low.

[0005] A further improvement plan is that both ends of the auxiliary reel are driven to connect to the winding disk, pulley one and pulley two are installed on the side rails on both sides of the front end of the stretched and flat sunshade, a spring is arranged on the middle section of the side rails on both sides, the free end of the spring is connected to pulley three, the free end of the traction line wound on the winding disk successively passes around pulley one, pulley three, pulley two and then is fixed on the tail rod at the front end of the sunshade; the driving mechanism drives the main reel to rotate through the synchronous belt to drive the auxiliary reel to rotate, and the auxiliary reel synchronously drives the winding disk to retract and release the traction line to pull the sunshade to move.

[0006] When the sunshade is a flat canopy on the roof, the main reel rotates forward, and the sunshade is wound around the main reel and the auxiliary reel under the traction of the synchronous belt. At the same time, the traction line wound on the winding disk is driven by the tail rod of the sunshade to stretch and pay out the line; when the main reel reverses, the auxiliary reel synchronously drives the winding disk to reverse and rewind the line, and the traction line is adjusted to produce a synchronization difference during operation under the action of the spring. The tension of the spring will keep the traction line taut at all times, so that the torque generated by the drive mechanism can all act on the traction of the sunshade, allowing the sunshade to stretch smoothly.

[0007] A further improvement is that teeth having the same length as the shaft are arranged axially on the surface of the reel, and the teeth on the reel and the shaft are integrally formed.

[0008] Another improvement is that the surface of the reel is an optical axis, and a synchronous wheel with teeth is mounted on the optical axis.

[0009] A further improvement is that a stabilizing frame is connected to the middle section of the main reel and the auxiliary reel, and the stabilizing frame includes a connecting rod and ball bearing sleeves at both ends, and the main reel and the auxiliary reel are movably mounted in the two ball bearing sleeves. When the main reel and the auxiliary reel are long, they are easy to deform during the pulling movement of the synchronous belt. Therefore, a stabilizing frame support is connected between the two reels, and the self-rotation of the reels is not affected. However, there is a hard support of the connecting rod between the two, which ensures that the long reel does not deform.

[0010] A further improvement is that the main reel, the auxiliary reel and the winding disk are installed in the cover A.

[0011] A further improvement is that a sweeping brush is provided on the upper side of the sunshade inlet and outlet on the front side of the housing A. Before the sunshade is received in the housing, the sundries on the sunshade are swept to prevent the sunshade from being caught in the sunshade and damaging the device.

[0012] A further improvement is that a cover B is provided on both sides of the sunshade, and the side rails and the pulleys, springs, traction lines installed thereon and the edges of the sunshade on both sides are hidden in the cover B.

[0013] A further improvement is that a traction line direction restraining member is provided on the side rail.

[0014] A further improvement is that the driving mechanism is a motor or a manual pulling mechanism, either electric or manual. Beneficial Effects

[0015] 1. Compared with the dual-motor single-axis retracting device, this device only needs one driving motor, which reduces the cost; at the same time, the dual-axis retracting sunshade is elliptical, has a higher load-bearing capacity, and the cover height is reduced; at the same time, compared with the compression stacking width is reduced.

[0016] Second, this device can complete the rolling up and flat traction of the sunshade curtain with a single drive, and has a simple structure, low failure rate and easy maintenance.

[0017] 3. When the sunshade is rolled up into the cover, the brush on the cover removes the fallen debris and eliminates the malfunction of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of Example 1; Figure 2 for Figure 1 Top view with the cover removed; Figure 3 It is a schematic diagram of the end face of the scroll; Figure 4 It is a schematic diagram of the end surface structure of the connection between the stabilizing frame and the reel; Figure 5 This is a schematic diagram of Example 2. DETAILED DESCRIPTION Example

[0019] like Figures 1 to 4 As shown, the present invention comprises two parallel and spaced reels 2, namely a main reel 21 and a secondary reel 22. The main reel 21 and the secondary reel 22 are provided with teeth 23 of the same length as the axis on the axial surface (the reel surface may also be an optical axis, and a synchronous wheel with teeth 23 is mounted on the optical axis). The teeth 23 at both ends of the main reel 21 and the secondary reel 22 are connected with a synchronous belt 4, and the rear end (indicated by point B) of the sunshade 3 is fixed on the synchronous belt 4; the two ends of the secondary reel 22 are driven to connect the winding disc 5, and at the front end (A) of the stretched and flat sunshade Pulley 1 61 and pulley 2 62 are installed on both side rails 11 (indicated by dots), spring 12 is set on the middle section of both side rails, and the free end of spring 12 is connected to pulley 3 63. The free end of the traction line 51 wound on the winding disk 5 is successively passed through pulley 1 61, pulley 3 63, and pulley 2 62 and then fixed on the tail rod 31 at the front end of the sunshade; the driving mechanism 1 drives the main reel 21 to rotate through the synchronous belt 4 to drive the auxiliary reel 22 to rotate, and the auxiliary reel 22 synchronously drives the winding disk to retract and release the traction line to pull the sunshade 3 to move. The side rail 11 is provided with a traction line direction constraint 14 for constraining the traction line direction.

[0020] The driving mechanism 1 can be a motor or a manual pulling mechanism. In this solution, it is a motor hidden in the main reel. The motor drives the main reel 21 to rotate through the synchronous belt 4, which drives the auxiliary reel 22 to rotate. The sunshade is wound on the main reel and the auxiliary reel under the traction of the synchronous belt. At the same time, the traction line is stretched by the sunshade, and the winding disk 5 releases the traction line. The 3.5-meter sunshade cover is 200mm high and 300mm wide, the 5.5-meter sunshade cover is 260mm high and 370mm wide, and the 7.5-meter sunshade cover is 300mm high and 400mm wide. Compared with the single-axis winding form, the cover height is significantly reduced, and compared with the compressed stacking, the cover width is significantly reduced.

[0021] When the motor drives the main reel to reverse, the secondary reel synchronously drives the winding disk to reverse and reel in. Under the action of the spring, the traction line is adjusted to produce a synchronization difference during operation. The tension of the spring will keep the traction line taut at all times, so that the torque generated by the drive mechanism can all act on the traction of the sunshade, allowing the sunshade to extend smoothly.

[0022] When the main reel 21 and the auxiliary reel 22 are long, the teeth 23 at the middle section of the main reel 21 and the auxiliary reel 22 are also connected with a synchronous belt 4, so that the left and right sides of the sunshade can run synchronously. However, the main reel 21 and the auxiliary reel 22 are easily bent and deformed between the two after long-term operation under the traction of the synchronous belt 4. Therefore, the middle section of the main reel 21 and the auxiliary reel 22 is connected with a stabilizing frame 8, which includes a connecting rod 81 and ball bearing sleeves 82 at both ends. The main reel 21 and the auxiliary reel 22 are movably mounted in the two ball bearing sleeves 82, such as Figure 4 shown.

[0023] The main reel 21, the auxiliary reel 22, and the winding disk 5 are installed in the cover A 91, and a sweeping brush 8 is provided above the sunshade inlet and outlet on the front side of the cover A 91.

[0024] A cover shell B 92 is provided on both sides of the sunshade curtain 3, and the side rails 11 and the pulleys, springs 12, traction lines 51 installed thereon and the side edges of the sunshade curtain 3 are all hidden in the cover shell B 92.

[0025] The traction belt includes but is not limited to steel wire, steel belt or composite flexible tensile material. Example

[0026] When the sunshade curtain is in the state of being rolled up and down, the device includes a driving mechanism 1 driving and connecting the reel 2, the rear end of the sunshade curtain 3 is fixedly connected to the reel 2 and can be rolled up around the reel, and the reel 2 is provided with two parallel reels, 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 a synchronous belt 4, and the rear end of the sunshade curtain 3 is fixed on the synchronous belt 4. The double-axis rolling sunshade curtain is elliptical, has a higher load-bearing capacity, and the height of the cover is reduced.

[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dual-axis single-drive self-traction sunshade device, comprising a drive mechanism (1) driving and connecting a reel (2), a rear end of a sunshade curtain (3) being fixedly connected to the reel (2) and being capable of being rolled up around the reel, characterized in that: Two reels (2) are arranged in parallel at intervals, namely a main reel (21) and an auxiliary reel (22); teeth (23) are respectively arranged on the main reel (21) and the auxiliary reel (22); a synchronous belt (4) is connected to the teeth (23); and a rear end of the sunshade (3) is fixed on the synchronous belt (4).

2. The dual-axis single-drive self-traction sunshade device according to claim 1 is characterized in that: The two ends of the secondary reel (22) are driven and connected to the winding disk (5), and pulleys 1 (61) and 2 (62) are installed on the side rails (11) on both sides of the front end of the stretched and flat sunshade. A pullable spring (12) is arranged on the side rails on both sides, and the free end of the spring (12) is connected to the pulley 3 (63). The free end of the traction line (51) wound on the winding disk (5) is successively passed around the pulley 1 (61), the pulley 3 (63), and the pulley 2 (62) and then fixed on the tail rod (31) at the front end of the sunshade; the driving mechanism (1) drives the main reel (21) to rotate through the synchronous belt (4) to drive the secondary reel (22), and the secondary reel (22) synchronously drives the winding disk to retract and release the traction line to pull the sunshade (3) to move.

3. The dual-axis single-drive self-traction sunshade device according to claim 1 or 2, characterized in that: The surface of the reel (2) is axially provided with teeth (23) having the same length as the axis; or the surface of the reel (2) is an optical axis, and a synchronous wheel with teeth (23) is mounted on the optical axis.

4. The dual-axis single-drive self-traction sunshade device according to claim 2 is characterized in that: A stabilizing frame (8) is connected to the middle section of the main reel (21) and the auxiliary reel (22). The stabilizing frame (8) comprises a connecting rod (81) and ball bearing sleeves (82) at both ends thereof. The main reel (21) and the auxiliary reel (22) are movably mounted in the two ball bearing sleeves (82).

5. The dual-axis single-drive self-traction sunshade device according to claim 2 is characterized in that: The main reel (21), the auxiliary reel (22), and the winding disk (5) are installed in the cover A (91).

6. The dual-axis single-drive self-traction sunshade device according to claim 5, characterized in that: A sweeping brush (10) is provided above the sunshade inlet and outlet on the front side of the cover shell A (91).

7. The dual-axis single-drive self-traction sunshade device according to claim 2, characterized in that: A cover shell B (92) is provided on both sides of the sunshade curtain (3); the side rails (11) and the pulleys, springs (12), traction lines (51) and both side edges of the sunshade curtain (3) are all hidden in the cover shell B (92).

8. The dual-axis single-drive self-traction sunshade device according to claim 2, characterized in that: The side rail (11) is provided with a traction line direction restraining member (14).

9. The dual-axis single-drive self-traction sunshade device according to claim 1, characterized in that: The driving mechanism (1) is a motor or a manual pulling mechanism.

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