Three-section expansion type automobile spoiler

Abstract

The embodiment of the utility model provides a three-section expansion type automobile spoiler which comprises spoiler blades, an expansion mechanism and a gooseneck lifting mechanism, and the spoiler blades comprise a middle wing blade and two side wing blades. The stretching mechanism can drive the two side wing blades to move towards the direction close to the middle wing blade until the two side wing blades are folded above the middle wing blade or move towards the direction away from the middle wing blade until the two side wing blades are in butt joint with the two ends of the middle wing blade respectively, and therefore the tail wing blades are switched between the folded state and the unfolded state in a reciprocating mode. The gooseneck lifting mechanism is used for driving the stretching mechanism to move up and down so as to drive the empennage blades to ascend or descend, and compared with a traditional multi-connecting-rod lifting mechanism, the gooseneck lifting mechanism is simple in structure, stable in operation and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a three-section unfoldable automobile tail wing. Background Art

[0002] When a car is driving at high speed, it will encounter resistance from the air. From a three-dimensional geometric point of view, around the center of gravity of the car, forces will be generated in three directions: the length direction (X direction), the width direction (Y direction), and the height direction (Z direction). Among them, the X direction is air resistance.

[0003] In order to reduce the impact of air resistance on high-speed driving of cars, people designed car tail wings with reference to wings. When the car is driving at high speed, the tail wing can guide the air resistance to form a downward pressure, so that the wind resistance coefficient is reduced accordingly, and try to avoid insufficient grip of the car due to excessive speed, thereby improving the stability of the car at high speed; and the tail wing reduces the air resistance of the car, which is also helpful for saving fuel; at the same time, it also makes the appearance of the car more beautiful and plays a certain decorative role. The three-stage tail wing includes two actions: Z-direction lifting and Y-direction deployment. The Z-direction lifting mechanism of the existing three-stage tail wing generally adopts a multi-link mechanism, which is unstable and costly. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a three-section deployable automobile rear wing to solve the technical problems of the existing three-section rear wing having a complex Z-direction lifting mechanism, unstable operation and high cost.

[0005] The utility model provides a three-section deployable automobile tail wing, comprising:

[0006] A tail blade, the tail blade comprising a middle wing blade and two side wing blades, the two side wing blades being movably arranged on both sides of the middle wing blade and being able to move towards or away from the middle wing blade;

[0007] An extension mechanism, the extension mechanism is fixedly arranged at the bottom of the middle wing blade and is transmission-connected to the two side wing blades; the extension mechanism is configured to drive the two side wing blades to move toward the middle wing blade until they are closed above the middle wing blade or to move toward the direction away from the middle wing blade until they are respectively butted against the two ends of the middle wing blade, so that the tail wing blades can be reciprocatedly switched between a closed state and an extended state;

[0008] A gooseneck lifting mechanism, which is transmission-connected to the extension mechanism and is used to drive the extension mechanism to move up and down, so as to drive the tail blade to rise or fall;

[0009] Wherein, the gooseneck lifting mechanism includes a gooseneck hinge and a lifting motor for driving the gooseneck hinge to rotate, the upper end of the gooseneck hinge is fixedly connected to the extension mechanism, and the lower end of the gooseneck hinge is drivingly connected to the lifting motor.

[0010] Optionally, the extension mechanism includes two groups of rocker arm assemblies, a driving motor for driving the rocker arm assemblies, and a shield for accommodating the rocker arm assemblies and the driving motor; the middle wing blade is fixedly arranged on the top of the shield, and the driving motor is fixedly arranged below the middle wing blade, the two groups of rocker arm assemblies are arranged on both sides of the driving motor and are transmission connected to the driving motor, and the two side wing blades are respectively transmission connected to the rocker arm assemblies on their corresponding sides.

[0011] Optionally, the rocker arm assembly includes an active rocker arm, a driven rocker arm and a connecting base plate; the connecting base plate is fixedly installed in the shield, and the gooseneck hinge passes through the shield and is fixedly connected to the connecting base plate; the lower ends of the active rocker arm and the driven rocker arm are respectively rotatably connected to the two ends of the connecting base plate, and the upper ends of the active rocker arm and the driven rocker arm are rotatably connected to the side wing blades; a driving connecting rod is fixedly installed on the output shaft of the driving motor, and a transmission connecting rod is respectively hinged at both ends of the driving connecting rod, and the two transmission connecting rods are respectively hinged to the active rocker arm on their corresponding sides.

[0012] Optionally, the shield includes an inner shield plate and an outer shield plate which are nested inside and outside, and the inner shield plate and the outer shield plate are snap-fitted and fixed and fastened together by bolts; a middle portion of the inner shield plate protrudes upward to form a mounting platform for mounting the middle wing blade, and a first accommodating space for accommodating the drive motor is formed between the mounting platform and the outer shield plate, and second accommodating spaces for accommodating the rocker arm assembly are provided on both sides of the first accommodating space, and an opening is left between the first accommodating space and the second accommodating space for the transmission connecting rod to pass through.

[0013] Optionally, the mid-wing blade is bonded and fixed to the mounting platform.

[0014] Optionally, a tolerance adjuster is pre-installed at the connection point between the connecting base plate and the gooseneck hinge.

[0015] Optionally, the wing blade comprises an upper plate and a lower plate which are buckled together, the upper plate and the lower plate are bonded and fixed, and the rocker assembly is connected to the lower plate.

[0016] Optionally, the upper plate and the lower plate are bonded and fixed by two-component polyurethane glue.

[0017] Optionally, a plurality of buffer pads are arranged at intervals at contact positions between the lower plate and the shield.

[0018] The embodiments of the present utility model have the following beneficial effects:

[0019] 1. The gooseneck lifting mechanism is adopted to replace the traditional multi-link lifting mechanism to realize the Z-direction lifting of the tail wing blade, with simple structure, stable operation and low cost;

[0020] 2. The driving motor can drive the two groups of swing rod assemblies to act synchronously only through the driving link and the transmission link, so that the tail wing blade reciprocally switches between the closed state and the unfolded state. The structure is simple and the operation is reliable. Compared with the traditional gear transmission structure using worm and worm wheel, it can effectively reduce the space occupied by the extension mechanism in the Z direction; meanwhile, the opening angle of the side wing blade can also be adjusted by the active swing rod and the driven swing rod to ensure that there is no step difference between the side wing blade and the middle wing blade when the tail wing blade is unfolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0022] Figure 1 It is a schematic structural diagram of the closed state of the embodiment of the present utility model;

[0023] Figure 2 It is a schematic structural diagram of the unfolded state of the embodiment of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the extension mechanism in the embodiment of the present utility model;

[0025] Figure 4 It is a schematic structural diagram of the bottom of the inner plate of the protective cover in the embodiment of the present utility model;

[0026] Figure 5 It is a schematic transmission structure diagram of the driving motor and the swing rod assembly in the embodiment of the present utility model;

[0027] The numbers in the figure represent:

[0028] 1. Middle wing blade; 2. Side wing blade; 3. Gooseneck hinge; 4. Driving motor; 5. Active swing rod; 6. Driven swing rod; 7. Connecting bottom plate; 8. Tolerance adjuster; 9. Driving link; 10. Transmission link; 11. Inner plate of protective cover; 12. Outer plate of protective cover; 13. Installation platform; 14. First accommodation space; 15. Second accommodation space. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model. In the present utility model, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more features.

[0030] Please refer to Figure 1 , Figure 2 As shown, an embodiment of the present utility model provides a three-section expandable car spoiler, which includes a spoiler blade, an extension mechanism, and a gooseneck lifting mechanism. The spoiler blade includes a middle wing blade 1 and two side wing blades 2. Among them, the two side wing blades 2 are respectively movably arranged on both sides of the middle wing blade 1 and can move towards or away from the middle wing blade 1. The extension mechanism is fixedly arranged at the bottom of the middle wing blade 1 and is in transmission connection with the two side wing blades 2; the extension mechanism is configured to be able to drive the two side wing blades 2 to move towards the middle wing blade 1 to close above the middle wing blade 1 (as Figure 1 shown), or move away from the middle wing blade 1 to be respectively docked with both ends of the middle wing blade 1 (as Figure 2 shown), so that the spoiler blade reciprocally switches between the closed state and the unfolded state.

[0031] The gooseneck lifting mechanism is in transmission connection with the extension mechanism and is used to drive the extension mechanism to move up and down to drive the spoiler blade to rise or fall. The gooseneck lifting mechanism includes a gooseneck hinge 3 and a lifting motor (not shown in the figure). The upper end of the gooseneck hinge 3 is fixedly connected to the extension mechanism, and the lower end of the gooseneck hinge 3 is in transmission connection with the lifting motor. The lifting motor can drive the gooseneck hinge 3 to rotate up and down through a gear transmission structure or the like, thereby driving the spoiler blade to rise or fall, with a simple structure and stable operation.

[0032] Furthermore, as Figures 3 - 5As shown in the figure, the extension mechanism in the embodiment of the present utility model includes two sets of swing rod assemblies, a driving motor 4 for driving the swing rod assemblies to act, and a shield for accommodating the swing rod assemblies and the driving motor 4. The middle wing blade 1 is fixedly arranged on the top of the shield, the driving motor 4 is fixedly arranged below the middle wing blade 1, and the two sets of swing rod assemblies are respectively arranged on both sides of the driving motor 4 and are in transmission connection with the driving motor 4; the two side wing blades 2 are respectively in transmission connection with the swing rod assemblies on their corresponding sides. By using the driving motor 4 to drive the two sets of swing rod assemblies to act synchronously, the tail wing blade can be reciprocally switched between the closed state and the unfolded state, with a simple structure and reliable operation.

[0033] Specifically, the swing rod assembly includes a driving swing rod 5, a driven swing rod 6, and a connecting bottom plate 7. The connecting bottom plate 7 is fixedly installed in the shield, and the gooseneck hinge 3 passes through the shield and is fixedly connected with the connecting bottom plate 7; a tolerance adjuster 8 can be pre-installed at the connection point between the connecting bottom plate 7 and the gooseneck hinge 3 to eliminate assembly deviation. The lower ends of the driving swing rod 5 and the driven swing rod 6 are respectively rotatably connected to both ends of the connecting bottom plate 7, and the upper ends of the driving swing rod 5 and the driven swing rod 6 are rotatably connected to the side wing blade 2. A driving connecting rod 9 is fixedly installed on the output shaft of the driving motor 4, and two transmission connecting rods 10 are respectively hinged at both ends of the driving connecting rod 9, and the two transmission connecting rods 10 are respectively hinged to the driving swing rod 5 on their corresponding sides. The driving motor 4 can drive the driving swing rods 5 on both sides to swing synchronously in opposite directions through the driving connecting rod 9 and the transmission connecting rods 10, so as to drive the two side wing blades 2 and the two driven swing rods 6 to act synchronously; the driven swing rod 6 can not only provide stable support for the side wing blade 2, but also cooperate with the driving swing rod 5 to adjust the opening angle of the side wing blade 2 (the inclination angle relative to the middle wing blade 1 when unfolded), ensuring that there is no step difference between the side wing blade 2 and the middle wing blade 1 when the tail wing blade is in the unfolded state.

[0034] Furthermore, the shield in the embodiment of the present utility model includes an inner shield plate 11 and an outer shield plate 12 which are nested inside and outside, and the inner shield plate 11 and the outer shield plate 12 are snap-fitted and fixedly connected by bolts. A mounting platform 13 is formed by the middle part of the inner shield plate 11 protruding upward, and the middle wing blade 1 can be fixedly installed on the mounting platform 13 by means of bonding and the like. A first accommodation space 14 for accommodating the driving motor 4 is formed between the mounting platform 13 and the outer shield plate 12, and second accommodation spaces 15 for accommodating the swing rod assemblies are respectively arranged on both sides of the first accommodation space 14, and an opening for the transmission connecting rod 10 to pass through is left between the first accommodation space 14 and the second accommodation spaces 15.

[0035] In addition, as an alternative implementation, the flanking vane 2 in the embodiments of the present utility model includes an upper plate and a lower plate that are buckled up and down (such as a painted upper plate and a grained lower plate). The upper plate and the lower plate are adhesively fixed, and it is preferably to use a two-component polyurethane glue with a relatively high elongation rate during adhesion; the swing rod assembly is connected to the lower plate, and a plurality of buffer pads can be arranged at intervals at the contact position between the lower plate and the shield to improve the dimensional stability of the vane during vehicle loading.

[0036] The assembly process of the embodiments of the present utility model is generally as follows:

[0037] After the upper plate and the lower plate of the flanking vane 2 are adhesively pre-assembled, the swing rod assembly and the buffer pads are installed on the lower plate of the flanking vane 2; after the middle vane 1 is adhesively fixed on the installation platform 13 of the inner plate 11 of the shield, the drive motor 4 is fixedly installed at the bottom of the installation platform 13; the connecting bottom plate 7 of the swing rod assembly is fixedly connected to the inner plate 11 of the shield; the drive link 9 on the drive motor 4 is drivingly connected to the active swing rod 5 through the transmission link 10; the outer plate 12 of the shield is fixedly installed on the inner plate 11 of the shield; the gooseneck hinge 3 is passed through the shield and fixedly connected to the connecting bottom plate 7.

[0038] Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present utility model; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A three-stage deployable automobile rear wing, characterized in that: include: A tail blade, the tail blade comprising a middle wing blade and two side wing blades, the two side wing blades being movably arranged on both sides of the middle wing blade and being able to move towards or away from the middle wing blade; An extension mechanism, the extension mechanism is fixedly arranged at the bottom of the middle wing blade and is transmission-connected to the two side wing blades; the extension mechanism is configured to drive the two side wing blades to move toward the middle wing blade until they are closed above the middle wing blade or to move toward the direction away from the middle wing blade until they are respectively butted against the two ends of the middle wing blade, so that the tail wing blades can be reciprocatedly switched between a closed state and an extended state; A gooseneck lifting mechanism, which is transmission-connected to the extension mechanism and is used to drive the extension mechanism to move up and down, so as to drive the tail blade to rise or fall; Wherein, the gooseneck lifting mechanism includes a gooseneck hinge and a lifting motor for driving the gooseneck hinge to rotate, the upper end of the gooseneck hinge is fixedly connected to the extension mechanism, and the lower end of the gooseneck hinge is drivingly connected to the lifting motor.

2. The three-stage deployable automobile rear wing according to claim 1, characterized in that: The extension mechanism includes two groups of rocker arm assemblies, a driving motor for driving the rocker arm assemblies, and a shield for accommodating the rocker arm assemblies and the driving motor; the middle wing blade is fixedly arranged on the top of the shield, and the driving motor is fixedly arranged below the middle wing blade, the two groups of rocker arm assemblies are arranged on both sides of the driving motor and are transmission connected to the driving motor, and the two side wing blades are respectively transmission connected to the rocker arm assemblies on their corresponding sides.

3. The three-section deployable automobile rear wing according to claim 2, characterized in that: The rocker arm assembly includes an active rocker arm, a driven rocker arm and a connecting base plate; the connecting base plate is fixedly installed in the shield, and the gooseneck hinge passes through the shield and is fixedly connected to the connecting base plate; the lower ends of the active rocker arm and the driven rocker arm are respectively rotatably connected to the two ends of the connecting base plate, and the upper ends of the active rocker arm and the driven rocker arm are rotatably connected to the side wing blades; a driving connecting rod is fixedly installed on the output shaft of the driving motor, and a transmission connecting rod is respectively hinged at both ends of the driving connecting rod, and the two transmission connecting rods are respectively hinged to the active rocker arm on the corresponding side.

4. The three-section deployable automobile rear wing according to claim 3, characterized in that: The shield includes an inner shield plate and an outer shield plate which are nested inside and outside, and the inner shield plate and the outer shield plate are fixed in engagement and fastened together by bolts; a middle portion of the inner shield plate protrudes upward to form a mounting platform for mounting the middle wing blade, a first accommodation space for accommodating the drive motor is formed between the mounting platform and the outer shield plate, second accommodation spaces for accommodating the rocker arm assembly are provided on both sides of the first accommodation space, and an opening is reserved between the first accommodation space and the second accommodation space for the transmission connecting rod to pass through.

5. The three-section deployable automobile rear wing according to claim 4, characterized in that: The middle wing blade is bonded and fixed to the mounting platform.

6. The three-section deployable automobile rear wing according to claim 3, characterized in that: The connection point between the connecting base plate and the gooseneck hinge is pre-installed with a tolerance adjuster.

7. The three-section deployable automobile rear wing according to claim 2, characterized in that: The wing blade comprises an upper plate and a lower plate which are buckled together, the upper plate and the lower plate are bonded and fixed, and the rocker assembly is connected to the lower plate.

8. The three-section deployable automobile rear wing according to claim 7, characterized in that: The upper plate and the lower plate are bonded and fixed by two-component polyurethane glue.

9. The three-section deployable automobile rear wing according to claim 7, characterized in that: A plurality of buffer pads are arranged at intervals at contact positions between the lower plate and the shield.

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