An automatic hail protection device for a vehicle

Abstract

The application discloses an automatic automobile hailproof device, which comprises air bags capable of surrounding automobiles, wherein the air bags are curled and arranged in air bag storage boxes, and first clockwork and second clockwork horizontally extending are symmetrically arranged on the air bags and extend to the bottom ends of the air bags in four directions; the air bag storage box comprises a box body, a driving assembly, a control device, an air pump and a battery, the driving assembly comprises a driving motor and first, second, third and fourth reels in rectangular distribution, the first clockwork on the same side of each reel is fixedly connected with the reel, the control device is electrically connected with the driving motor, the air pump and the battery; a box cover is arranged on the top of the box body, an exit and entrance capable of allowing each air bag to extend out are arranged between the box cover and the box body, and a control button is arranged on the upper end surface of the box cover. The application aims to provide an automobile hailproof device which can automatically store and release air bags, the air bags can be fully unfolded and can prevent automobiles from being blown and scraped by strong winds.

Description

Technical Field

[0001] This invention relates to the field of automotive protection technology, and more particularly to an automatic automotive hail protection device. Background Technology

[0002] With the improvement of the national economic level, the number of vehicles in my country has exploded. However, the limited indoor parking lots are far from meeting the parking needs of most people, so many vehicles are parked outdoors. When hail occurs, the falling hail can cause irreversible and serious damage to the surface of vehicles. Hail protection for cars has become an urgent need, but existing car hail protection devices are all based on manual assistance, with low levels of automation. Furthermore, the airbag material is usually flexible and cannot fully deploy. Moreover, existing devices do not consider the impact of strong winds accompanying hail, and cannot achieve the desired effect under strong wind conditions. Therefore, there is an urgent need for a car hail protection device that can automatically deploy and retract airbags, ensuring full deployment and protection against strong winds. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a car anti-hail device that can automatically deploy and retract airbags, and that the airbags can fully deploy and prevent being blown away by strong winds.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] An automatic car hail protection device includes an airbag capable of surrounding the car. The airbag is coiled and housed within an airbag storage box. Symmetrically arranged on each airbag are first springs extending vertically in four directions to the bottom of the airbag. The airbag storage box includes a housing, a drive assembly, a control device, an air pump, and a battery. The drive assembly includes a drive motor and four rectangularly arranged reels: a first reel, a second reel, a third reel, and a fourth reel. The first springs on the same side as each reel are fixedly connected to the reel. Each reel has a bearing bracket fixed to the bottom wall of the housing at its end. A rolling bearing is provided between the bearing bracket and the reel. A drive gear is fixedly mounted on the main shaft of the drive motor. The first reel has a section facing the drive motor. A driven reduction gear that meshes with the driving gear is fixedly installed. A small bevel gear is installed on the other side of the first reel. Large bevel gears are installed at both ends of the second reel. Small bevel gears are installed at both ends of the third reel. A large bevel gear is installed at the end of the fourth reel facing the third reel. Each small bevel gear and large bevel gear is connected by a vertical bevel gear meshing with it. The vertical bevel gear is connected to the bottom wall of the housing through a bearing seat. The control device is electrically connected to the drive motor, air pump and battery. A housing cover is installed on the top of the housing. An inlet and outlet are provided between the housing cover and the housing to allow each airbag to extend. A control button electrically connected to the control device is installed on the upper surface of the housing cover. The air pump is connected to each airbag through an air pipe.

[0006] Furthermore, the airbag is divided into four pieces and placed inside the airbag storage box.

[0007] Furthermore, each airbag has a common lanyard at its bottom, and the bottom of each first spring is connected to the lanyard. One of the airbags has a lanyard tightening device at its bottom.

[0008] Furthermore, a tightening motor is fixedly installed inside the rope tightening device. The tightening motor is electrically connected to the control device. A V-shaped take-up wheel is fixedly installed on the main shaft of the tightening motor. A pulley that cooperates with the rope is installed on one side of the take-up wheel, and a spring tension switch is installed on the other side. A reciprocating screw is movably connected to the pulley. The end of the reciprocating screw is fixed to the inner wall of the rope tightening device through a base. The V-groove of the take-up wheel and the spring tension switch are both flexibly connected to the rope.

[0009] Furthermore, the outer surface of the reciprocating lead screw is fixed with two threaded grooves of the same pitch but opposite direction, and the two ends are connected by a transition curve. The axial movement stroke of the pulley is less than the groove width of the V-shaped take-up groove of the take-up reel.

[0010] Furthermore, the bottom of the box is provided with a suction cup that can be attached to the roof of the vehicle.

[0011] Furthermore, all the vertical bevel gears are fixedly connected to the vertical gear shaft, and the lower end of the vertical gear shaft is interference-fitted with a thrust bearing, which is fixedly mounted on the bearing housing.

[0012] Furthermore, a sleeve is provided between the driven reduction gear and the adjacent rolling bearing on the first reel.

[0013] Furthermore, the first spring is provided with a second spring that is connected to the outer wall of the airbag and extends horizontally at intervals.

[0014] Furthermore, the first spring is provided with spring hinges that open and close toward the inside of the airbag at intervals, and each spring hinge is provided with a horizontal support rod that is connected to the outer wall of the airbag.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention utilizes a three-set bevel gear meshing structure to achieve simultaneous and unidirectional rotation of four reels driven by a single drive motor. Considering that the roof area of ​​a car is smaller than its side area, the meshing of large and small bevel gears alters the transmission ratio between different shafts, ensuring that the bottom ends of the airbags on all four sides deploy simultaneously. The drive motor rotates the reels, which, in conjunction with a spring perpendicular to the reel direction and exhibiting a downward curling tendency, achieve automatic airbag deployment and deployment, reducing the need for manual assistance. Considering that severe weather conditions during hailstorms are often accompanied by strong winds, a connecting rope runs through the bottom of each airbag. The rope's deployment and deployment are achieved through a rope tightening device, effectively preventing the airbags from being blown away by strong winds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the airbag in Embodiment 1 of the present invention;

[0019] Figure 3 This is a schematic diagram of the box structure in this invention;

[0020] Figure 4 This is a schematic diagram of the bevel gear meshing structure in this invention;

[0021] Figure 5 This is a schematic diagram of the driving component in this invention;

[0022] Figure 6 This is a schematic diagram showing the first spring being mounted on the spool in this invention;

[0023] Figure 7 This is a schematic diagram of the rope tightening device in this invention;

[0024] Figure 8 This is a schematic diagram of the invention being attached to the roof of a car;

[0025] Figure 9This is a schematic diagram of the structure of the airbag in Embodiment 2 of the present invention.

[0026] Figure label:

[0027] 1-Lid, 2-Airbag, 3-First Winding, 4-Second Winding, 5-Rope, 6-Rope Tightening Device, 7-Control Button, 8-Bearing Seat, 9-Third Reel, 10-Bearing Frame, 11-Small Bevel Gear, 12-Vertical Gear Shaft, 13-Thrust Bearing, 14-Vertical Bevel Gear, 15-Large Bevel Gear, 16-Battery, 17-Suction Cup, 18-Box Body, 19-Inlet / Outlet, 20-Fourth Reel, 21-Air Pump, 22-Rolling Bearing, 23-Driving Gear, 24-Driven Reduction Gear, 25-Sleeve, 26-Drive Motor, 27-First Reel, 28-Second Reel, 29-Control Device, 30-Base, 31-Pulley, 32-Reciprocating Screw, 33-Take-up Reel, 34-Tightening Motor, 35-Spring Pull Switch, 36-Spring Hinge, 37-Support Rod. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] like Figures 1 to 8As shown, an automatic car hail protection device includes an airbag 2 capable of surrounding the car. The airbag 2 is curled up inside an airbag storage box. Each airbag 2 has a first spring 3 symmetrically arranged in four directions, extending vertically to the bottom of the airbag 2. The airbag storage box includes a housing 18, a drive assembly, a control device 29, an air pump 21, and a battery 16. The drive assembly includes a drive motor 26 and four spools 20 and 27, 28, 9, and 20 arranged in a rectangular pattern. The first springs 3 on the same side as each spool are fixedly connected to the spool. Each spool has a bearing bracket 10 fixed to the bottom wall of the housing 18 at its end. A rolling bearing 22 is provided between the bearing bracket 10 and the spool. A drive gear 23 is fixedly mounted on the main shaft of the drive motor 26. The first spool 27 has a drive gear 23 fixedly mounted on its side facing the drive motor 26. The driven reduction gear 24 meshes with the driving gear 23. A small bevel gear 11 is provided on the other side of the first spool 27. Both ends of the second spool 28 are provided with large bevel gears 15. Both ends of the third spool 9 are provided with small bevel gears 11. A large bevel gear 15 is provided on the end of the fourth spool 20 facing the third spool 9. Each small bevel gear 11 and large bevel gear 15 is connected by a vertical bevel gear 14. The vertical bevel gear 14 is connected to the bottom wall of the housing 18 through a bearing seat 8. The control device 29 is electrically connected to the drive motor 26, the air pump 21 and the battery 16. The top of the housing 18 is provided with a cover 1. An inlet 19 is provided between the cover 1 and the housing 18 to allow each airbag 2 to extend. The upper surface of the cover 1 is provided with a control button 7 electrically connected to the control device 29. The air pump 21 is connected to each airbag 2 through an air pipe.

[0031] The airbag 2 is divided into four pieces and housed in the airbag storage box. These four pieces correspond to the four sides of the vehicle and are easy to extend and retract individually. A lanyard 5 is threaded through the bottom of each airbag 2, and the bottom of each first spring 3 is connected to the lanyard 5. One airbag 2 has a lanyard tightening device 6 at its bottom. The lanyard 5 connects the bottom of each airbag 2, and tightening the lanyard 5 secures the bottom of all airbags 2, ensuring that the bottom of each airbag 2 fits snugly against the vehicle body. This improves rain and hail protection and effectively prevents the airbags from being blown away in strong winds. The rope tightening device 6 is equipped with a tightening motor 34, which is electrically connected to the control device 29. A V-shaped take-up reel 33 is fixedly mounted on the main shaft of the tightening motor 34. One side of the take-up reel 33 has a pulley 31 that cooperates with the rope 5, and the other side has a spring tension switch 35. A reciprocating screw 32 is movably connected to the pulley 31. The end of the reciprocating screw 32 is fixed to the inner wall of the rope tightening device 6 via a base 30. The V-shaped groove of the take-up reel 33 and the spring tension switch 35 are both flexibly connected to the rope 5. Two threaded grooves with the same pitch but opposite directions are fixed on the outer surface of the reciprocating screw 32, connected at both ends by a transition curve. The axial travel of the pulley 31 is less than the width of the V-shaped take-up groove of the take-up reel 33. The rope tightening device 6 is used to tighten the rope 5 after the airbag 2 is fully deployed, securing the airbag 2 and effectively preventing it from being blown away by strong winds.

[0032] The bottom of the box 18 is provided with a suction cup 17 that can be attached to the roof of the car, so that the box 18 can be attached and fixed to the roof of the car through the suction cup 17.

[0033] The vertical bevel gears 14 are all fixedly connected to the vertical gear shaft 12. The lower end of the vertical gear shaft 12 is interference-fitted with a thrust bearing 13, which is fixedly mounted on the bearing seat 8. The vertical bevel gears 14 are used to mesh with the small bevel gear 11 and the large bevel gear 15 to form a bevel gear meshing structure, so that the rotation of the drive motor 26 can be transmitted between the reels.

[0034] The first roller 27 has a sleeve 25 between the driven reduction gear 24 and the adjacent rolling bearing 22. The sleeve 25 can prevent the driven reduction gear 24 from moving axially and avoid the driven reduction gear 24 from contacting the rolling bearing 22.

[0035] The drive assembly of this invention comprises four spools and nine bevel gears, which together form a rectangular structure in planar projection. Only the first spool 27 and the fourth spool 20, near the drive motor 26, lack bevel gear engagement; the remaining spools have bevel gear engagement at adjacent positions. Rolling bearings 22 are interference-fitted at both ends of each of the four spools. The drive motor 26 provides the power for the spool rotation. A drive gear 23 is mounted on the main shaft of the drive motor 26, meshing with a driven reduction gear 24. The driven reduction gear 24 has more teeth than the drive gear 23, achieving a certain speed reduction. The direction of motion is changed through bevel gear transmission. Multi-stage bevel gear transmission allows one drive motor output to drive all four spools to rotate simultaneously in the same direction. The meshing of the small bevel gear 11 and the large bevel gear 15 changes the transmission ratio, achieving the effect of simultaneous movement of the front and rear airbags and the left and right airbags to their lowest positions.

[0036] The first spring 3 is provided with second springs 4 that are connected to the outer wall of the airbag 2 and extend horizontally at intervals. In this embodiment, the airbag 2 is designed as a segmented structure. Each airbag 2 has two first springs 3 perpendicular to the spool direction and two sets of second springs 4 parallel to the spool direction fixed on its surface as the skeleton of the airbag 2. The upper end of the first spring 3 is fixedly connected to the spool, and the lower end is flexibly connected to the surrounding rope 5. The first springs 3 perpendicular to the spool direction tend to curl downwards, and the second springs 4 parallel to the spool direction tend to curl horizontally. The distance between the two first springs 3 is less than the width of the opening 19 of the lid 1, which facilitates the opening and closing of the airbag 2. The first springs 3 and the second springs 4 are symmetrically distributed along the center line of the airbag 2.

[0037] When control button 7 is activated, drive motor 26 receives instructions from control device 29 and begins to rotate. Airbag 2, driven by drive motor 26, rotates four scrolls through inlet 19 to reach the outside. The first spring 3 serves as a guide for the downward deployment of airbag 2. After airbag 2 deploys, air pump 21 receives instructions from control device 29 and begins to inflate airbag 2 located outside the car, surrounding and covering all four sides of the vehicle. As airbag 2 deploys outwards, the first spring 3 and second spring 4 provide force adhering to the car's surface. Simultaneously, the first spring 3, with its rigidity, acts as a guide for the downward deployment of airbag 2, while the second spring 4, parallel to the scroll direction, exhibits lateral tension that facilitates the complete deployment of airbag 2. Airbag 2 can be deployed and retracted automatically without manual assistance. After the air pump 21 stops working, the rope tightening device 6 receives a command from the control device 29. The tightening motor 34 drives the V-shaped take-up reel 33 to rotate simultaneously, and the rope 5 is taken in and out of the take-up reel 33. Considering the problem of uneven winding of the rope 5 during the winding and unwinding process, the reciprocating screw 32 and the pulley 31 are designed to work together to drive the rope 5 to reciprocate within its stroke, effectively solving the problem of uneven winding. When the rope 5 is tightened to a certain extent, the spring tension switch 35 disconnects the power supply, the tightening motor 34 stops working, and the entire unfolding process of the device ends. During this process, the drive motor 26, the air pump 21, and the rope tightening device 6 are all controlled by the control device 29. The control device 29 in this invention can be the controller of the flexible car sun protection and hail protection device disclosed in application number 2018222041750, which will not be described in detail here.

[0038] When it is necessary to retract the airbag 2, press the control button 7 again. The control device 29 will output the opposite command as when the airbag 2 is deployed, so that the airbag 2 can be retracted to the corresponding scroll.

[0039] Example 2

[0040] like Figure 9 As shown, the first spring 3 is provided with spring hinges 36 spaced apart, opening and closing towards the inside of the airbag 2. Each hinge of the spring hinge 36 has a horizontal support rod 37 connected to the outer wall of the airbag 2. In this embodiment, each airbag 2 surface is fixed with two first springs 3 perpendicular to the spool direction. Each first spring 3 is provided with spring hinges 36 spaced apart, opening and closing towards the inside of the airbag 2. The upper end of the first spring 3 is fixedly connected to the spool, and the lower end is flexibly connected to the surrounding rope 5. When the airbag 2 extends from the housing 18, inflation into the airbag 2 causes the spring hinges 36 to open, unfolding the support rods 37 on each hinge, thereby deploying the airbag 2. During deployment, the first springs 3 and spring hinges 36 provide force to adhere to the vehicle surface.

[0041] When the airbag 2 needs to be retracted, press the control button 7 again. The control device 29 outputs the opposite command to that when the airbag 2 is deployed. The spring hinge 36 closes automatically due to the airbag 2. The support rod 37 on the two hinges of each spring hinge 36 can drive the airbag 2 to fold and merge. The distance between the first springs 3 is less than the width of the inlet 19 of the cover 1. After the airbag 2 is folded and merged, it can be retracted to the corresponding scroll.

[0042] 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 within the protection scope of the present invention.

Claims

1. An automatic car hail protection device, comprising an airbag (2) capable of surrounding the car, characterized in that: The airbag (2) is coiled and disposed inside the airbag storage box. Each airbag (2) has a first spring (3) that extends vertically in four directions to the bottom of the airbag (2). The airbag storage box includes a box body (18), a drive assembly, a control device (29), an air pump (21), and a battery (16). The drive assembly includes a drive motor (26) and a first spool (27), a second spool (28), a third spool (9), and a fourth spool (20) arranged in a rectangular pattern. The first spring (3) on the same side as each spool is fixedly connected to the spool. Each spool has a bearing bracket (10) fixed to the bottom wall of the housing (18) at its end. A rolling bearing (22) is provided between the bearing bracket (10) and the spool. A drive gear (23) is fixedly provided on the main shaft of the drive motor (26). The first spool (27) has a driven reduction gear (24) that meshes with the drive gear (23) fixedly provided on its side facing the drive motor (26). A small bevel gear (11) is provided on the other side of the spool (27), a large bevel gear (15) is provided at both ends of the second spool (28), a small bevel gear (11) is provided at both ends of the third spool (9), and a large bevel gear (15) is provided at the end of the fourth spool (20) facing the third spool (9). Each small bevel gear (11) and the large bevel gear (15) are connected by a vertical bevel gear (14). The vertical bevel gear (14) is connected to the housing (1) through a bearing seat (8). 8) The bottom wall is connected, and the control device (29) is electrically connected to the drive motor (26), the air pump (21) and the battery (16); the top of the box (18) is provided with a box cover (1), and an inlet (19) is provided between the box cover (1) and the box (18) to allow each airbag (2) to extend out. The upper end face of the box cover (1) is provided with a control button (7) electrically connected to the control device (29); the air pump (21) is connected to each airbag (2) through an air pipe.

2. An automatic car hail protection device according to claim 1, characterized in that: The airbag (2) is divided into four pieces and placed in the airbag storage box.

3. An automatic car hail protection device according to claim 2, characterized in that: Each airbag (2) has a common lanyard (5) at its bottom end, and the bottom end of the first spring (3) is connected to the lanyard (5). One of the airbags (2) has a lanyard tightening device (6) at its bottom end.

4. An automatic car hail protection device according to claim 3, characterized in that: The rope tightening device (6) is equipped with a tightening motor (34), which is electrically connected to the control device (29). The main shaft of the tightening motor (34) is equipped with a V-shaped take-up wheel (33). One side of the take-up wheel (33) is equipped with a pulley (31) that cooperates with the rope (5), and the other side is equipped with a spring tension switch (35). A reciprocating screw (32) is movably connected to the pulley (31). The end of the reciprocating screw (32) is fixed to the inner wall of the rope tightening device (6) through the base (30). The V-shaped groove of the take-up wheel (33) and the spring tension switch (35) are both flexibly connected to the rope (5).

5. An automatic car hail protection device according to claim 4, characterized in that: The outer surface of the reciprocating screw (32) is provided with two threaded grooves with the same pitch and opposite directions, and the two ends are connected by a transition curve. The axial movement stroke of the pulley (31) is less than the groove width of the V-shaped take-up groove of the take-up reel (33).

6. An automatic car hail protection device according to claim 1, characterized in that: The bottom of the box (18) is provided with a suction cup (17) that can be attached to the roof of the vehicle.

7. An automatic car hail protection device according to claim 1, characterized in that: The vertical bevel gears (14) are all fixedly connected to the vertical gear shaft (12). The lower end of the vertical gear shaft (12) is fitted with a thrust bearing (13), which is fixedly mounted on the bearing seat (8).

8. An automatic car hail protection device according to claim 1, characterized in that: The first spool (27) has a sleeve (25) between the driven reduction gear (24) and the adjacent rolling bearing (22).

9. An automatic car hail protection device according to claim 1, characterized in that: The first spring (3) is provided with a second spring (4) that is connected to the outer wall of the airbag (2) and extends horizontally.

10. An automatic car hail protection device according to claim 1, characterized in that: The first spring (3) is provided with spring hinges (36) that open and close toward the inside of the airbag (2) at intervals. Each of the spring hinges (36) is provided with a horizontal support rod (37) that is connected to the outer wall of the airbag (2).

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