Tensioning device for automobile sunshade curtain

Abstract

The utility model discloses an automobile sunshade curtain tensioning device, which belongs to the technical field of sunshade curtains and comprises a support, a winding roller is rotatably connected to an inner cavity of the support, curtain cloth is wound on the outer surface of the winding roller, a first rotating wheel is fixedly sleeved on the outer surface of the winding roller, and a servo motor is mounted on the inner surface of the support. A second rotating wheel is welded to the output end of the servo motor, the outer surface of the second rotating wheel is in transmission connection with a belt, and the inner surface of the belt is in transmission connection with the outer surface of the first rotating wheel. According to the automobile sunshade curtain tensioning device, through cooperative use of the supporting bracket, the winding roller, the curtain cloth, the first rotating wheel, the servo motor, the second rotating wheel, a belt, a micro air pump, an air exchange pipe, a hose and an air pressure sensor, the effects that the curtain cloth is conveniently and rapidly expanded and attached to the surface of an automobile window, and light penetrating through gaps is reduced as much as possible are achieved; and through cooperative use of a bearing plate, a protection frame, a reset telescopic rod, a reset spring and a pressing plate, the effect of conveniently eliminating wrinkles generated when the curtain cloth moves is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sunshade curtains, and in particular relates to a tensioning device for a car sunshade curtain. Background Art

[0002] Sunshade is used to effectively block the sunlight in front of the front windshield and side and rear windshield of the car. The sunshade can be designed according to the curvature size of the windshield of different models, and can be a high-end sunshade with an automatic constant speed mechanism;

[0003] High-end sunshades with constant-speed motors can move horizontally and block the outside sunlight. At that time, the vibration of the vehicle or the wind from the outside can easily cause the sunshade to shake or shift, and the outside sunlight may also fall into the car through the gaps of the sunshade. The tensioning device can make the sunshade fit the window surface tightly, reduce the light passing through the gaps, and thus enhance the sunshade effect;

[0004] In order to solve the above problems, the present application proposes a vehicle sunshade tensioning device. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a vehicle sunshade tensioning device to overcome the above technical problems existing in the existing related technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vehicle sunshade tensioning device comprises a supporting bracket, the inner cavity of the supporting bracket is rotatably connected to a winding roller, the outer surface of the winding roller is wrapped with curtain cloth, the outer surface of the winding roller is fixedly sleeved with a first rotating wheel, the inner surface of the supporting bracket is mounted with a servo motor, the output end of the servo motor is welded with a second rotating wheel, the outer surface of the second rotating wheel is transmission-connected with a belt, the inner surface of the belt is transmission-connected to the outer surface of the first rotating wheel, a micro air pump is mounted on the top of the supporting bracket, a ventilation pipe is mounted on the input end of the micro air pump, a hose is mounted on the output end of the micro air pump, the hose inflates the curtain cloth, when the air pressure in the curtain cloth reaches a certain value, the air pressure sensor triggers and shuts down the micro air pump.

[0008] The inner surface of the ventilation pipe is welded with a filter screen. By setting the filter screen, the filter screen can intercept and filter impurities in the gas entering the ventilation pipe, and try to avoid impurities passing through the ventilation pipe to cause damage to parts in the micro air pump.

[0009] A pad is fixedly connected to the top of the support bracket, and a positioning hole is opened on the outer surface of the pad. By setting the pad and the positioning hole, the operator can use screws and other parts to pass through the positioning hole and the pad to install the support bracket as a whole inside the car, which is convenient for quick disassembly and replacement of the support bracket as a whole.

[0010] A load-bearing plate is fixedly connected to the bottom of the supporting bracket, a protective frame is installed at the bottom of the load-bearing plate, a reset telescopic rod is installed on the side of the protective frame close to the curtain, a reset spring is wound around the outer surface of the reset telescopic rod, and a pressure plate is detachably installed on the telescopic end of the reset telescopic rod. By arranging the load-bearing plate, the protective frame, the reset telescopic rod, the reset spring and the pressure plate, the pressure plate is tightly attached to the surface of the curtain under the elastic force of the reset telescopic rod and the reset spring. When the curtain moves up and down under force, the pressure plate can eliminate wrinkles and dust on the surface of the curtain as much as possible.

[0011] The vertical cross-sectional area of ​​the pressing plate is smaller than the vertical cross-sectional area of ​​the protective frame. By setting the area of ​​the pressing plate, the pressing plate can be accommodated by the protective frame when it is moved by force, thereby avoiding the pressing plate from being damaged by collisions and extending the service life of the pressing plate as much as possible.

[0012] A disassembly hole is provided on a side of the pressure plate close to the curtain, and a bolt is threadedly connected to the inner cavity of the pressure plate. The bolt passes through the pressure plate and is threadedly connected to the reset telescopic rod. By setting the bolt, an operator can gradually release the fixed state of the reset telescopic rod and the pressure plate by rotating the bolt in a direction away from the reset telescopic rod, so that the operator can quickly disassemble and replace the worn pressure plate.

[0013] To sum up, the technical effects and advantages of the utility model are as follows: the automobile sunshade tensioning device, through the coordinated use of a supporting bracket, a winding roller, a curtain, a first rotating wheel, a servo motor, a second rotating wheel, a belt, a micro air pump, an air exchange tube, a hose and an air pressure sensor, can achieve the effect of facilitating the rapid expansion of the curtain and fitting the window surface, thereby enhancing the stability of the sunshade and minimizing the effect of light passing through the gap; through the coordinated use of a load-bearing plate, a protective frame, a reset telescopic rod, a reset spring and a pressure plate, it can achieve the effect of facilitating the elimination of wrinkles when the curtain moves and keeping the curtain neat; through the coordinated use of a reset telescopic rod, a pressure plate, a disassembly hole and a bolt, it can achieve the effect of facilitating the rapid disassembly and replacement of a worn pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the ventilation tube of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the protective frame, the resetting telescopic rod, the resetting spring and related parts of the utility model.

[0018] In the figure:

[0019] 1. Support bracket; 2. Winding roller; 3. Curtain cloth; 4. First rotating wheel; 5. Servo motor; 6. Second rotating wheel; 7. Belt; 8. Micro air pump; 9. Ventilation pipe; 10. Hose; 11. Air pressure sensor; 12. Filter; 13. Pad; 14. Positioning hole; 15. Load-bearing plate; 16. Protective frame; 17. Reset telescopic rod; 18. Reset spring; 19. Press plate; 20. Disassembly hole; 21. Bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-2 A car sunshade tensioning device comprises a supporting bracket 1, the inner cavity of the supporting bracket 1 is rotatably connected with a winding roller 2, the outer surface of the winding roller 2 is wound with a curtain 3, and the rolling of the winding roller 2 can make the curtain 3 unfold downward or retract upward; the outer surface of the winding roller 2 is fixedly sleeved with a first rotating wheel 4, and the inner surface of the supporting bracket 1 is installed with a servo motor 5, and the servo motor 5 adopts an external power supply; the output end of the servo motor 5 is welded with a second rotating wheel 6, and the outer surface of the second rotating wheel 6 is transmission-connected with a belt 7, and the inner surface of the belt 7 is transmission-connected with the outer surface of the first rotating wheel 4. When the servo motor 5 is started, the winding roller 2 can be driven to rotate through the second rotating wheel 6, the belt 7 and the first rotating wheel 4, so as to control the unfolding and retracting of the curtain 3.

[0022] Reference Figure 1-2 A micro air pump 8 is installed on the top of the support bracket 1. The micro air pump 8 uses an external power supply. A ventilation pipe 9 is installed at the input end of the micro air pump 8, and a hose 10 is installed at the output end of the micro air pump 8. When the curtain 3 is unfolded, the micro air pump 8 is started and air is inflated into the curtain 3 through the ventilation pipe 9 and the hose 10, so that the curtain 3 expands and fits the surface of the window. When the air pressure in the curtain 3 reaches a certain value, the air pressure sensor 11 will trigger and turn off the micro air pump 8, so that the curtain 3 remains in a tensioned state.

[0023] Reference Figure 1 and Figure 3 A filter screen 12 is welded on the inner surface of the ventilation pipe 9. The radius of the filter screen 12 is equal to the radius of the inner surface of the ventilation pipe 9, and the filter screen 12 can filter impurities in the air entering the ventilation pipe 9, and try to prevent external impurities from passing through the ventilation pipe 9 with the air and entering the interior of the micro air pump 8 to cause damage to parts.

[0024] Reference Figure 1A pad block 13 is fixedly connected to the top of the support bracket 1, and a positioning hole 14 is opened on the outer surface of the pad block 13. The operator can use screws or other instruments to pass through the pad block 13 and the positioning hole 14 to fix the support bracket 1 as a whole inside the car. The design of multiple positioning holes 14 facilitates the operator to adjust the installation position of the support bracket 1.

[0025] Reference Figure 1 and Figure 4 A load-bearing plate 15 is fixedly connected to the bottom of the support bracket 1. There are two load-bearing plates 15, which are symmetrically distributed with the support bracket 1 as the center. A protective frame 16 is installed at the bottom of the load-bearing plate 15, and the length of the protective frame 16 is less than the length of the support bracket 1; a reset telescopic rod 17 is installed on the side of the protective frame 16 close to the curtain 3, and a reset spring 18 is wound around the outer surface of the reset telescopic rod 17. A pressing plate 19 is detachably installed at the telescopic end of the reset telescopic rod 17. The pressing plate 19 is tightly fitted with the curtain 3 under the action of the reset telescopic rod 17 and the reset spring 18. When the curtain 3 moves under force, the pressing plate 19 can gradually eliminate the wrinkles on the surface of the curtain 3 and keep the curtain 3 as neat as possible.

[0026] Reference Figure 4 The vertical cross-sectional area of ​​the pressure plate 19 is smaller than the vertical cross-sectional area of ​​the protection frame 16. When the curtain 3 begins to expand, the smaller pressure plate 19 is forced to move toward the inside of the protection frame 16, and the hollow protection frame 16 can properly accommodate the pressure plate 19, avoiding the pressure plate 19 from being exposed to the outside and avoiding the pressure plate 19 from being damaged by bumps.

[0027] Reference Figure 1 and Figure 4 A disassembly hole 20 is provided on the side of the pressing plate 19 close to the curtain 3, and a bolt 21 is threadedly connected to the inner cavity of the pressing plate 19. The bolt 21 passes through the pressing plate 19 and is threadedly connected to the reset telescopic rod 17. The operator rotates the bolt 21 counterclockwise to drive the bolt 21 to move away from the pressing plate 19. When the bolt 21 is completely separated from the reset telescopic rod 17, the fixed state of the reset telescopic rod 17 and the pressing plate 19 is released, and the operator can quickly disassemble the pressing plate 19 for replacement or maintenance.

[0028] Working principle: First, start the servo motor 5 and drive the winding roller 2 to rotate through the second wheel 6, the belt 7 and the first wheel 4. When the curtain 3 on the surface of the winding roller 2 unfolds downward, the operator starts the micro air pump 8 on the top of the support bracket 1. After the micro air pump 8 is started, it can inflate the curtain 3 through the ventilation pipe 9 and the hose 10, so that the curtain 3 expands and fits the surface of the window. When the air pressure in the curtain 3 reaches a certain value, the air pressure sensor 11 will trigger and turn off the micro air pump 8, so that the curtain 3 remains in a tensioned state. When the curtain 3 is retracted under force, the micro air pump 8 can release the gas inside the curtain 3 through the ventilation pipe 9 and the hose 10, so that the curtain 3 shrinks and is easy to retract.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle sunshade tensioning device, comprising a support bracket (1), characterized in that: The inner cavity of the support bracket (1) is rotatably connected to a winding roller (2), the outer surface of the winding roller (2) is wound with a curtain (3), the outer surface of the winding roller (2) is fixedly sleeved with a first rotating wheel (4), the inner surface of the support bracket (1) is installed with a servo motor (5), the output end of the servo motor (5) is welded with a second rotating wheel (6), the outer surface of the second rotating wheel (6) is transmission-connected with a belt (7), the inner surface of the belt (7) is transmission-connected with the outer surface of the first rotating wheel (4), a micro air pump (8) is installed on the top of the support bracket (1), the input end of the micro air pump (8) is installed with a ventilation pipe (9), the output end of the micro air pump (8) is installed with a hose (10), the hose (10) inflates the curtain (3), and when the air pressure in the curtain (3) reaches a certain value, the air pressure sensor (11) triggers and turns off the micro air pump (8).

2. The automobile sunshade tensioning device according to claim 1, characterized in that: A filter screen (12) is welded to the inner surface of the ventilation pipe (9).

3. The automobile sunshade tensioning device according to claim 1, characterized in that: A cushion block (13) is fixedly connected to the top of the support bracket (1), and a positioning hole (14) is provided on the outer surface of the cushion block (13).

4. The automobile sunshade tensioning device according to claim 1, characterized in that: The bottom of the support bracket (1) is fixedly connected to a load-bearing plate (15), the bottom of the load-bearing plate (15) is installed with a protective frame (16), a reset telescopic rod (17) is installed on the side of the protective frame (16) close to the curtain (3), the outer surface of the reset telescopic rod (17) is wound with a reset spring (18), and the telescopic end of the reset telescopic rod (17) is detachably installed with a pressure plate (19).

5. The automobile sunshade tensioning device according to claim 4, characterized in that: The vertical cross-sectional area of ​​the pressing plate (19) is smaller than the vertical cross-sectional area of ​​the protection frame (16).

6. The automobile sunshade tensioning device according to claim 4, characterized in that: A disassembly hole (20) is provided on a side of the pressing plate (19) close to the curtain (3); a bolt (21) is threadedly connected to the inner cavity of the pressing plate (19); and the bolt (21) passes through the pressing plate (19) and is threadedly connected to the resetting telescopic rod (17).

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