Single motor driven dual opening sunshade curtain

Abstract

This utility model relates to a single-motor driven double-opening sunshade curtain. Front and rear roller shafts are supported between the middle of the two side frames of the sunroof. Slider blocks are installed at both ends of the front and rear extension rods corresponding to the front and rear roller shafts. The inner side of the integrated guide rail has a spring groove, and first and second slider rack grooves arranged sequentially from the opening inwards. The sliders at both ends of the front extension rod are respectively connected to the first rack with a front plastic coating and the second rack with a rear plastic coating, located in the first and second slider rack grooves on both sides of the front of the two guide rails. The sliders at both ends of the rear extension rod are respectively connected to the second rack with a front plastic coating and the first rack with a rear plastic coating, located in the first and second slider rack grooves on both sides of the rear of the two guide rails. The front and rear plastic coatings of the first rack pass through both ends of the first driving rack, and the front and plastic coatings of the second rack pass through both ends of the second driving rack. The first and second driving racks mesh on opposite sides of the center of the drive gear driven by the drive motor. Its structure is simple and effectively ensures smooth and low-noise operation of the entire sunroof.

Description

Technical Field

[0001] This utility model relates to a sunshade curtain, specifically a single-motor driven double-opening sunshade curtain. Background Technology

[0002] With the development of sunroof technology, the requirements for sunshades are becoming increasingly stringent. For applications with long spans or requiring separate shading control for different sections, sunshades need to be controlled individually for each section. The applicant's prior invention patent 2020116172855, a single-motor double-opening sunshade, has been found by customers to have a problem after more than three years of use. They found that the drive motor is located in the middle of the drive rail, which is detrimental to the left-right balance of the overall sunroof frame, causing uneven vibration during operation and significantly impacting service life and noise levels. Furthermore, the front and rear racks, each driving the front and rear extension rods on either side, are plastic-coated and located within the same sunshade drive groove. The racks connecting the front and rear racks are also within the same drive groove. Because racks are relatively flexible compared to rigid connecting rods, the two racks within the same groove are prone to bending and wear when propelled forward by the drive motor through gear meshing, leading to wear between them or wear on the groove walls, which also affects service life and increases noise. Summary of the Invention

[0003] This invention provides a single-motor driven double-opening sunshade curtain with a simple structure that can effectively ensure the smooth and low-noise operation of the overall sunroof.

[0004] The technical solution adopted by this utility model is: a single-motor driven double-opening sunshade curtain, including a drive motor located on the front frame of the skylight and two guide rails on the side frames of the skylight. The feature is that: front and rear rollers are respectively supported between the middle positions of the two side frames; one end of the front and rear curtain fabric is wound on the front and rear rollers; the other end of the front and rear curtain fabric is connected to the front and rear extension rods; sliders are provided at both ends of the front and rear extension rods; the guide rails are an integral structure; slider grooves corresponding to the sliders are provided on the inner side of the guide rails; the slider grooves, from the opening inwards, are sequentially provided with a spring groove, a first slider rack groove, and a second slider rack groove; the front extension... The sliders at both ends of the extension rod are respectively connected to the first and second racks with plastic coatings at the front and rear of the first and second racks in the first and second rack slots on both sides of the front of the two guide rails. The sliders at both ends of the rear extension rod are respectively connected to the second rack with plastic coatings at the front and the first rack with plastic coatings at the rear of the two guide rails in the first and second rack slots. The first and second racks with plastic coatings at the front and rear of the first rack pass through the two ends of the first drive rack, and the second racks with plastic coatings at the front and rear of the second rack pass through the two ends of the second drive rack. The first and second drive racks are respectively meshed on opposite sides of the center of the drive gear driven by the drive motor.

[0005] The front and rear rollers are equipped with a middle crossbeam guard plate, and the two ends of the middle crossbeam guard plate are locked to the lower ends of the two guide rails.

[0006] A coil spring is installed inside the spring groove, and the spring is engaged with the slider by a card.

[0007] The beneficial effects of this utility model are: by still setting the drive motor in the middle of the front frame, it is conducive to the overall smooth operation of the sunroof frame and avoids the vibration and noise caused by setting a motor on one side; the plastic-coated structure of the two racks driven by the drive motor is respectively set in the two slider rack grooves of the guide rail. When the racks are pushed into the plastic coating by the motor and gear, the noise, smooth operation and life problems caused by the two racks rubbing and wearing each other in the same groove are avoided, thus efficiently ensuring the smooth operation and low noise of the double-opening sunroof. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0009] Figure 2 For this Figure 1 Top view;

[0010] Figure 3 This is a schematic diagram of the rack and pinion extension rod structure of this utility model;

[0011] Figure 4 for Figure 2 AA view;

[0012] Figure 5 for Figure 2 BB view;

[0013] Figure 6 for Figure 2 CC view;

[0014] Figure 7 for Figure 2 DD view in the middle.

[0015] In the diagram: 1. Front frame; 2. First drive rack; 3. Second drive rack; 4. Front roller; 5. Rear roller; 6. Curtain; 7. Front extension rod; 8. Slider; 9. Rear extension rod; 10. Guide rail; 11. Spring groove; 12. First slider rack groove; 13. Second slider rack groove; 15. First rack front plastic coating; 16. First rack rear plastic coating; 17. Second rack front plastic coating; 18. Second rack rear plastic coating; 19. Card; 20. Spring. Detailed Implementation

[0016] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0017] Figure 1-7 As shown: A single-motor driven double-opening sunshade includes a drive motor located on the front frame 1 of the sunroof. In the existing sunroof field, the prior art for mounting the motor on the front frame is to place it at the lower end of the front frame 1. Figure 1Not shown in the image. The front and rear rollers 4 and 5 are respectively supported between the middle positions of the guide rails 10 on both sides of the sunroof. One end of the front and rear curtain 6 is wound on the front and rear rollers, and the other end of the front and rear curtain 6 is connected to the front and rear extension rods 7 and 9. Slider 8 is provided at both ends of the front and rear extension rods 7 and 9. The guide rail 10 is an integral structure. The inner side of the guide rail 10 is provided with corresponding slider grooves for inserting sliders. The slider grooves are arranged in sequence from the opening inwards as a coil spring groove 11, a first slider rack groove 12, and a second slider rack groove 13. The sliders 8 at both ends of the front extension rod 7 are respectively connected to the first rack front plastic coating 15 and the second rack rear plastic coating 18 in the first slider rack groove 12 and the second slider rack groove 13 on both sides of the front part of the two guide rails. The sliders at both ends of the rear extension rod 9 are respectively connected to the second rack front plastic coating 17 and the first rack rear plastic coating 16 in the first slider rack groove 12 and the second slider rack groove 13 on both sides of the rear part of the two guide rails. The first rack front plastic coating 15 and the first rack rear plastic coating 16 pass through the two ends of the first drive rack 2. The second rack front plastic coating 17 and the second rack rear plastic coating 18 pass through the two ends of the second drive rack 3. The first and second drive racks 2 and 3 are respectively meshed on opposite sides of the center of the drive gear driven by the drive motor.

[0018] In this embodiment, a middle crossbeam guard plate is provided under the front and rear rollers, and the two ends of the middle crossbeam guard plate are locked to the lower ends of the two guide rails.

[0019] In this embodiment, a coil spring 20 is provided in the coil spring groove 11, and the coil spring 20 is engaged with the slider 8 below by the card 19.

Claims

1. A single-motor driven double-opening sunshade curtain, comprising a drive motor located on the front frame of the skylight and two guide rails on the side frames of the skylight, characterized in that: The two side frames support front and rear rollers respectively at their midpoints. One end of the front and rear curtains is wound on the front and rear rollers, and the other end of the front and rear curtains is connected to the front and rear extension rods. Both ends of the front and rear extension rods are equipped with sliders. The guide rail is an integral structure, and the inner side of the guide rail is provided with slider slots corresponding to the sliders. The slider slots are arranged in sequence from the opening inwards as a coil spring slot, a first slider rack slot, and a second slider rack slot. The sliders at both ends of the front extension rod are respectively connected to the first rack with front plastic coating and the second rack with rear plastic coating in the first and second slider rack slots on both sides of the front of the two guide rails. The sliders at both ends of the rear extension rod are respectively connected to the second rack with front plastic coating and the first rack with rear plastic coating in the first and second slider rack slots on both sides of the rear of the two guide rails. The first rack with front plastic coating and the first rack with rear plastic coating pass through both ends of the first drive rack, and the second rack with front plastic coating and the second rack with rear plastic coating pass through both ends of the second drive rack. The first and second drive racks are respectively meshed on opposite sides of the center of the drive gear driven by the drive motor.

2. The single-motor driven double-opening sunshade curtain according to claim 1, characterized in that: The front and rear rollers are equipped with a middle crossbeam guard plate, and the two ends of the middle crossbeam guard plate are locked to the lower ends of the two guide rails.

3. A single-motor driven double-opening sunshade curtain according to claim 1, characterized in that: A coil spring is installed inside the spring groove, and the spring is engaged with the slider by a card.

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