Sunshade curtain multi-area synchronous driving structure

Abstract

The utility model discloses a multi-area synchronous driving structure of a sunshade curtain, which comprises a driving motor, the output end of the driving motor is in transmission connection with two transmission soft springs, the transmission soft springs are in bendable spiral shapes, two transverse ends of curtain cloth to be driven are respectively provided with an unfolding frame used for controlling the curtain cloth to be unfolded and folded, and the unfolding frames are connected with the driving motor. The ends, away from the driving motor, of the two transmission soft springs are in transmission connection with the two unfolding frames respectively, the two sides of the unfolding end of the curtain cloth are each provided with an unfolding strip, the two unfolding strips are in transmission connection with the unfolding frames on the same sides of the unfolding strips, and the unfolding frames are used for controlling the unfolding strips to move so as to control unfolding and contracting of the curtain cloth. The utility model provides a multi-area synchronous driving structure of a sunshade curtain, which can provide an omnibearing sunshade effect for a front windshield and reduce careless omission of sunshade directions.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts and components, in particular to a multi-region synchronous driving structure of a sunshade. Background Art

[0002] The use of car sunshade systems in cars is becoming more and more common. Its main purpose is to prevent the interior of the car from being heated up by strong light to ensure the user experience of the car. The second is to provide sunshade for the driver to avoid being exposed to the sun and causing driving hazards.

[0003] For the purpose of providing sunshade for the driver, especially on large buses, the front windshield area is huge, and considering the beautiful curves of large buses and the influence of air resistance, the front windshields of large buses mostly adopt a curved design. If a conventional sunshade system is designed on the curved structure, for example, two sunshade curtains are used to shade the front area of ​​the main driver's seat and the front area of ​​the co-driver's seat respectively, it is easy to cause omissions in the sunshade direction, and the sunlight can still shine into the car from the gap between the two sunshade curtains. Or, for example, a large sunshade curtain is used to shade the entire front windshield. Due to the interference of the curved structure, the sunlight can shine into the car from the lateral ends of the sunshade curtain, resulting in the front windshield sunshade curtain failing to achieve the expected shading effect. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a sunshade curtain multi-zone synchronous driving structure which can provide all-round sunshade effect to the front windshield and reduce omissions in sunshade orientation.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problems is: a multi-zone synchronous driving structure of a sunshade curtain, including a driving motor, the output end of the driving motor is transmission-connected with two transmission soft springs, the transmission soft springs are in a bendable spiral shape, and an unfolding frame for controlling the expansion and contraction of the curtain to be driven is respectively provided at both lateral ends, the two ends of the two transmission soft springs away from the driving motor are transmission-connected with two unfolding frames, an unfolding strip is respectively provided on both sides of the unfolding end of the curtain, the two unfolding strips are transmission-connected with the unfolding frame on the same side thereof, and the unfolding frame is used to control the movement of the unfolding strip to control the expansion and contraction of the curtain.

[0006] Compared with the prior art, the advantages of the utility model are: the lateral curvature of the front windshield of a large passenger car is smaller in the front area of ​​the main driver's seat and the front area of ​​the co-driver's seat, and the middle curvature is larger. If the traditional integrated unfolding drive structure is used to unfold the curtain, it is difficult to achieve a good sunshade effect in both the lateral and longitudinal unfolding processes; in the lateral unfolding process, because the lateral curvature changes from large to small, the distance between the curtain at the unfolding end and the front windshield is large, and the sunshade effect is poor; in the longitudinal unfolding process, the curvatures of various areas in the lateral direction are different. If an integrated unfolding method is used, the lateral middle unfolding is normal and the lateral ends are loose, or the lateral middle unfolding is too tight and the lateral ends are normal. The first situation is likely to cause omissions in the sunshade orientation after the curtain is unfolded, and the second situation is likely to cause the middle area of ​​the curtain to break easily, which is not conducive to the long-term use of the curtain; the present scheme adopts a multi-area synchronous drive structure to unfold the curtain in the longitudinal direction and in the lateral direction. Two unfolding racks are arranged upwards, and the two unfolding racks are respectively located in the front area of ​​the main driver's seat and the front area of ​​the co-driver's seat, so that the tightness of the curtain unfolding in the front area of ​​the driver's seat and the front area of ​​the co-driver's seat can be well controlled, thereby ensuring the sunshade effect at both ends in the horizontal direction and avoiding sunshade omissions, and the middle area in the horizontal direction can naturally stick to the front windshield by the tightness of the two ends in the horizontal direction, so that the curtain in the middle area in the horizontal direction will not be unfolded too tightly, avoiding the situation that the curtain is easy to break when opened, and ensuring the service life of the curtain bank; wherein the transmission structure of the transmission soft spring can simplify the transmission structure, and avoid the design of the synchronous drive of the unfolding racks in the two areas by a driving motor, and the structure is bulky and occupies a large space; and the design of the unfolding strip can ensure the unfolding flatness at both ends in the horizontal direction during the unfolding of the curtain, and the unfolding strip is not arranged in the middle area in the horizontal direction, which can avoid the omission of the sunshade area when the two ends of the unfolding strip cannot fit with the middle area in the horizontal direction when the unfolding strip is offset with the middle area in the horizontal direction. The above-mentioned co-driver's seat in large buses is mainly the upper door area.

[0007] As an improvement of the utility model, a transmission assembly is provided at the output end of the driving motor, and the transmission assembly includes a transmission worm gear. Two transmission soft springs are respectively arranged on opposite sides of the transmission worm gear and are connected to the transmission worm gear for worm gear transmission. Through the improvement, the driving motor can synchronously drive the two transmission soft springs.

[0008] As an improvement of the present invention, the outer layer of the transmission soft spring is wrapped with a transmission molding tube, the transmission assembly also includes a transmission housing, the transmission worm gear is arranged in the transmission housing, the transmission molding tube includes a transmission connecting tube and a transmission extension tube, the transmission connecting tube is arranged between the driving motor and the unfolding frame, the transmission extension tube is arranged on the side of the driving motor away from the unfolding frame along the setting direction of the transmission soft spring, the transmission connecting tube and the transmission extension tube are fixedly connected through the transmission housing, and the transmission soft spring between the transmission connecting tube and the transmission extension tube is used for transmission connection with the transmission worm gear. Through the improvement, the design of the transmission molding tube avoids deformation of the transmission soft spring during the transmission process, thereby ensuring the transmission connection stability of the transmission soft spring, and the design of the transmission housing ensures the stability of the worm gear transmission connection between the transmission soft spring and the transmission worm wheel.

[0009] As an improvement of the present utility model, the end of the unfolding frame away from the unfolding strip is arranged on a base frame, and a fixing seat is respectively provided at both ends of the base frame. A fixing buckle is fixedly connected to the fixing seat to fix the end of the transmission shaping tube away from the driving motor, and the fixing buckle is in the shape of a long strip. Through the improvement, because the transmission soft spring is arranged in a curve during the arrangement process, if the transmission connection between the transmission soft spring and the unfolding frame is carried out along the curve direction, the transmission effect is poor. Therefore, the transmission connection direction of the transmission soft spring is corrected by the fixing buckle, so that the transmission connection direction is arranged along the lateral direction of the base frame, thereby ensuring the transmission effect of the transmission soft spring on the unfolding frame.

[0010] As an improvement of the present utility model, the fixing seat is provided with a connecting groove, a positioning step is provided on one side of the connecting groove, the base frame is provided with a positioning plate in the notch direction of the connecting groove, and a buckling groove is provided in the circumferential direction of the fixing buckle. The buckling groove and the connecting groove are spliced ​​into a positioning hole for fixing the transmission molding tube, one end of the buckling groove is used to abut against the positioning step, and the other end of the buckling groove is buckled on the positioning plate. Through the improvement, the fixed connection of the fixing buckle is realized, and the molding of the positioning hole is realized.

[0011] As an improvement of the present utility model, the unfolding frame is formed by splicing a plurality of X-shaped frames, the X-shaped frame includes two rotating rods, the two rotating rods are rotatably connected about the center of the rotating rod, the unfolding frame realizes the unfolding and contracting effect by the rotational deformation of the two rotating rods in the X-shaped frame, one end of the unfolding frame is connected to the base frame through the ends of the two rotating rods on an X-shaped frame, and the other end of the unfolding frame is also connected to the unfolding bar through the ends of the two rotating rods on an X-shaped frame. Through the improvement, the unfolding connection of the unfolding frame is realized.

[0012] As an improvement of the utility model, the end of a rotating rod connected to the base frame is rotatably connected to the base frame, the end of another rotating rod connected to the base frame is fixed to the end of the transmission soft spring away from the driving motor and is connected to the base frame while moving and rotating, the end of a rotating rod connected to the expansion bar is rotatably connected to the expansion bar, and the end of another rotating rod connected to the expansion bar is connected to the expansion bar while moving and rotating. Through the improvement, the expansion bar can be driven by driving one of the rotating rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the unfolding frame when the curtain is unfolded.

[0014] Figure 2 The utility model is a schematic diagram of the connection structure between the transmission soft spring and the transmission worm gear.

[0015] Figure 3 It is a schematic diagram of the transmission connecting pipe and the fixing buckle structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the connection structure between the fixing buckle and the fixing seat of the utility model.

[0017] Figure 5 It is a structural schematic diagram of an unfolding frame of the utility model.

[0018] Figure 6 It is a schematic diagram of the connection structure between the moving block and the base frame of the utility model.

[0019] As shown in the figure: 1. curtain cloth, 2. driving motor, 3. transmission soft spring, 4. unfolding frame, 4.1. X-shaped frame, 4.1.1. rotating rod, 5. unfolding bar, 6. transmission assembly, 6.1. transmission worm gear, 6.2. transmission shaping pipe, 6.2.1. transmission connecting pipe, 6.2.2. transmission extension pipe, 6.3. transmission housing, 7. base frame, 7.1. fixing seat, 7.1.1. connecting groove, 7.1.2. positioning step, 7.2. fixing buckle, 7.2.1. buckling groove, 7.3. positioning plate, 7.4. positioning hole, 8. moving block, 8.1. moving limit column. DETAILED DESCRIPTION

[0020] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0021] like Figure 1As shown, a multi-zone synchronous drive structure of a sunshade curtain comprises a driving motor 2, the output end of the driving motor 2 is transmission-connected with two transmission soft springs 3, the transmission soft spring 3 is in a bendable spiral shape, and an unfolding frame 4 for controlling the expansion and contraction of the curtain 1 is respectively provided at both lateral ends of the curtain 1 to be driven, and the ends of the two transmission soft springs 3 away from the driving motor 2 are transmission-connected with the two unfolding frames 4 respectively, and an unfolding strip 5 is respectively provided on both sides of the unfolding end of the curtain 1, and the two unfolding strips 5 are transmission-connected with the unfolding frame 4 on the same side thereof, and the unfolding frame 4 is used to control the movement of the unfolding strip 5 to control the expansion and contraction of the curtain 1.

[0022] like Figure 2 As shown, a transmission assembly 6 is provided at the output end of the driving motor 2, and the transmission assembly 6 includes a transmission worm wheel 6.1. Two transmission soft springs 3 are respectively arranged on opposite sides of the transmission worm wheel 6.1 and are connected to the transmission worm wheel 6.1 by worm gear transmission. Compared with the traditional worm gear transmission connection, the worm here is the transmission soft spring 3, which does not rotate but moves along the axial direction of the transmission soft spring 3. The outer layer of the transmission soft spring 3 is wrapped with a transmission molding tube 6.2. The transmission assembly 6 also includes a transmission housing 6.3. The transmission worm wheel 6.1 is arranged in the transmission housing. 6.3, the transmission shaping tube 6.2 includes a transmission connecting tube 6.2.1 and a transmission extension tube 6.2.2, the transmission connecting tube 6.2.1 is arranged between the driving motor 2 and the unfolding frame 4, the transmission extension tube 6.2.2 is arranged on the side of the driving motor 2 away from the unfolding frame 4 along the setting direction of the transmission soft spring 3, the transmission connecting tube 6.2.1 and the transmission extension tube 6.2.2 are fixedly connected by the transmission housing 6.3, and the transmission soft spring 3 between the transmission connecting tube 6.2.1 and the transmission extension tube 6.2.2 is used for transmission connection with the transmission worm gear 6.1.

[0023] like Figure 3 , Figure 4 As shown, the end of the unfolding frame 4 away from the unfolding strip 5 is arranged on a base frame 7, and a fixing seat 7.1 is provided at each end of the base frame 7, and a fixing buckle 7.2 for fixing the end of the transmission shaping tube 6.2 away from the driving motor 2 is fixedly connected to the fixing seat 7.1, and the fixing buckle 7.2 is in the shape of an elongated strip, and the fixing seat 7.1 is provided with a connecting groove 7.1.1, and a positioning step 7.1.2 is provided on one side of the connecting groove 7.1.1. The base frame 7 is provided with a positioning plate 7.3 in the notch direction of the connecting groove 7.1.1, and a buckling groove 7.2.1 is provided in the circumferential direction of the fixing buckle 7.2. The buckling groove 7.2.1 and the connecting groove 7.1.1 are spliced ​​into a positioning hole 7.4 for fixing the transmission shaping tube 6.2, and one end of the buckling groove 7.2.1 is used to abut against the positioning step 7.1.2, and the other end of the buckling groove 7.2.1 is buckled on the positioning plate 7.3.

[0024] like Figure 1 , Figure 5 As shown, the unfolding frame 4 is composed of a plurality of X-shaped frames 4.1, and the X-shaped frame 4.1 includes two rotating rods 4.1.1, and the two rotating rods 4.1.1 are connected to each other by rotating about the center of the rotating rod 4.1.1. The unfolding frame 4 realizes the effect of unfolding and contracting by the rotation deformation of the two rotating rods 4.1.1 in the X-shaped frame 4.1. One end of the unfolding frame 4 is connected to the base frame 7 through the ends of the two rotating rods 4.1.1 on an X-shaped frame 4.1, and the other end of the unfolding frame 4 is also connected to the base frame 7 through an X-shaped frame The ends of the two rotating rods 4.1.1 on 4.1 are connected to the unfolding bar 5, the end of one rotating rod 4.1.1 connected to the base frame 7 is rotatably connected to the base frame 7, the end of the other rotating rod 4.1.1 connected to the base frame 7 is fixed to the end of the transmission soft spring 3 away from the driving motor 2 and is connected to the base frame 7 while moving and rotating, the end of one rotating rod 4.1.1 connected to the unfolding bar 5 is rotatably connected to the unfolding bar 5, and the end of the other rotating rod 4.1.1 connected to the unfolding bar 5 is connected to the unfolding bar 5 while moving and rotating.

[0025] like Figure 5 , Figure 6 As shown, a moving block 8 is provided at the end of the rotating rod 4.1.1 connected to the base frame 7 while moving and rotating, and moving limit columns 8.1 are provided on both sides of the moving block 8. On both sides of the inside of the base frame 7, there are moving limit grooves of the base frame 7 for the moving limit columns 8.1 to move, thereby ensuring the stability of the moving block 8 in the base frame 7. The connecting end of the transmission soft spring 3 and the unfolding frame 4 is fixedly connected to the moving block 8 by welding. A rotating pin is rotatably connected to the end of the rotating rod 4.1.1 rotatably connected to the base frame 7, and a fixed connection hole for fixing the rotating pin is provided on the base frame 7, thereby realizing the rotating connection of the rotating rod 4.1.1 to the base frame 7, and the connection method of the rotating pin and the base frame 7 is conventional technology.

[0026] A moving column is rotatably connected to the end of the rotating rod 4.1.1 connected to the unfolding bar 5 while moving and rotating, and the two sides inside the unfolding bar 5 are provided with the unfolding bar 5 moving limit grooves for the two ends of the moving column to move, thereby ensuring the stability of the moving column moving in the unfolding bar 5. The end of the rotating rod 4.1.1 rotatably connected to the unfolding bar 5 is also rotatably connected with a rotating pin, and the unfolding bar 5 is provided with a fixed connection hole for fixing the rotating pin, thereby realizing the rotatable connection of the rotating rod 4.1.1 to the unfolding bar 5. The movable connection between the moving column and the unfolding bar 5 and the connection between the rotating pin and the unfolding bar 5 are both conventional technologies.

[0027] During use, the two transmission soft springs 3 can be driven to move by the driving motor 2, so as to push the moving block 8 to move in the base frame 7, so that the two unfolding frames 4 can be unfolded or retracted to realize the unfolding and retraction of the curtain 1. The two unfolding frames 4 are driven by the same driving motor 2, so as to ensure the synchronization of the lateral ends of the curtain 1 and the unfolding and retracting effect of the curtain 1. The design of the two unfolding frames 4 ensures the complete fit of the unfolded curtain 1 on the front windshield, reducing the omission of sunshade.

[0028] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A multi-zone synchronous drive structure for a sunshade, characterized in that: The invention comprises a driving motor (2), the output end of the driving motor (2) being transmission-connected to two transmission soft springs (3), the transmission soft springs (3) being in a bendable spiral shape, an expansion frame (4) for controlling the expansion and contraction of the curtain (1) being provided at each of the lateral ends of the curtain (1) to be driven, the ends of the two transmission soft springs (3) away from the driving motor (2) being transmission-connected to the two expansion frames (4), an expansion bar (5) being respectively provided on both sides of the expansion end of the curtain (1), the two expansion bars (5) being transmission-connected to the expansion frame (4) on the same side thereof, the expansion frame (4) being used to control the movement of the expansion bar (5) to control the expansion and contraction of the curtain (1).

2. According to claim 1, a sunshade multi-zone synchronous drive structure is characterized in that: The output end of the drive motor (2) is provided with a transmission assembly (6), the transmission assembly (6) comprising a transmission worm wheel (6.1), and two transmission soft springs (3) are respectively arranged on opposite sides of the transmission worm wheel (6.1) and are connected to the transmission worm wheel (6.1) in a worm gear transmission.

3. According to claim 2, a sunshade multi-zone synchronous drive structure is characterized in that: The outer layer of the transmission soft spring (3) is wrapped with a transmission shaping tube (6.2); the transmission assembly (6) further comprises a transmission housing (6.3); the transmission worm gear (6.1) is arranged in the transmission housing (6.3); the transmission shaping tube (6.2) comprises a transmission connecting tube (6.2.1) and a transmission extension tube (6.2.2); the transmission connecting tube (6.2.1) is arranged between the driving motor (2) and the unfolding frame (4); the transmission extension tube (6.2.2) is arranged on a side of the driving motor (2) away from the unfolding frame (4) along the setting direction of the transmission soft spring (3); the transmission connecting tube (6.2.1) and the transmission extension tube (6.2.2) are fixedly connected via the transmission housing (6.3); the transmission soft spring (3) between the transmission connecting tube (6.2.1) and the transmission extension tube (6.2.2) is used for transmission connection with the transmission worm gear (6.1).

4. According to claim 3, a sunshade multi-zone synchronous drive structure is characterized in that: One end of the unfolding frame (4) away from the unfolding strip (5) is arranged on a base frame (7), and a fixing seat (7.1) is provided at each end of the base frame (7). A fixing buckle (7.2) is fixedly connected to the fixing seat (7.1) and is used to fix the end of the transmission shaping tube (6.2) away from the driving motor (2), and the fixing buckle (7.2) is in the shape of a long strip.

5. According to claim 4, a sunshade multi-zone synchronous drive structure is characterized in that: The fixing seat (7.1) is provided with a connecting groove ( 7.1.1), a positioning step (7.1.2) is provided on one side of the connecting groove (7.1.1), a positioning plate (7.3) is provided on the base frame (7) in the notch direction of the connecting groove (7.1.1), and a buckling groove (7.2) is provided on the circumference of the fixing buckle (7.2). 7.2.1), the buckling groove (7.2.1) and the connecting groove (7.1.1) are spliced ​​to form a positioning hole (7.4) for fixing the transmission shaping tube (6.2), one end of the buckling groove (7.2.1) is used to abut against the positioning step (7.1.2), and the other end of the buckling groove (7.2.1) is buckled on the positioning plate (7.3).

6. According to claim 4, a sunshade multi-zone synchronous drive structure is characterized in that: The unfolding frame (4) is formed by splicing a plurality of X-shaped frames (4.1), the X-shaped frame (4.1) comprising two rotating rods (4.1.1), the two rotating rods (4.1.1) being connected to each other by rotation about the center of the rotating rod (4.1.1), the unfolding frame (4) is deformed by rotation of the two rotating rods (4.1.1) in the X-shaped frame (4.1) to achieve the effects of unfolding and contracting, one end of the unfolding frame (4) is connected to the base frame (7) through the ends of the two rotating rods (4.1.1) on an X-shaped frame (4.1), and the other end of the unfolding frame (4) is also connected to the unfolding bar (5) through the ends of the two rotating rods (4.1.1) on an X-shaped frame (4.1).

7. A sunshade multi-zone synchronous drive structure according to claim 6, characterized in that: The end of a rotating rod (4.1.1) connected to the base frame (7) is rotatably connected to the base frame (7), the end of another rotating rod (4.1.1) connected to the base frame (7) is fixed to the end of the transmission soft spring (3) away from the drive motor (2) and is connected to the base frame (7) while moving and rotating, the end of a rotating rod (4.1.1) connected to the expansion bar (5) is rotatably connected to the expansion bar (5), and the end of another rotating rod (4.1.1) connected to the expansion bar (5) is connected to the expansion bar (5) while moving and rotating.

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