CN114132151B

CN114132151B - Air outlet device

Info

Publication number: CN114132151B
Application number: CN202111652398.3A
Authority: CN
Inventors: 章佳喆; 唐煜成; 陈海燕; 刘金鹏
Original assignee: Shanghai Yanfeng Jinqiao Automotive Trim Systems Co Ltd
Current assignee: Shanghai Yanfeng Jinqiao Automotive Trim Systems Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-09-15
Anticipated expiration: 2041-12-30
Also published as: CN114132151A; WO2023125055A1

Abstract

The invention relates to an air outlet device, which comprises: a front row of blades arranged to pivot about a first direction to adjust one of a horizontal direction and a vertical direction of air flow; a rear row of blades arranged to pivot about a second direction perpendicular to the first direction to adjust the other one of the horizontal direction and the vertical direction; and a toggle button configured to drive the front row blade or the rear row blade by deflecting the toggle button to adjust a direction of the air flow, and to drive the rear row blade by pressing the toggle button such that adjacent ones of the rear row blades overlap partially to prevent the air flow from passing or to drive the overlapped rear row blades apart to allow the air flow to pass. According to the air outlet device, the air flow direction adjusting and stopping function is integrated on one manual actuating structure, specifically, the air flow direction is adjusted by deflecting the toggle buttons up and down and left and right, the air flow opening and closing function is realized by pressing, and the air outlet device has improved operation convenience in a limited operation space.

Description

Air outlet device

Technical Field

The invention relates to an automobile, in particular to an air outlet device.

Background

At present, an air outlet of an automobile generally has functions of adjusting the wind direction up, down, left and right and stopping the air flow, wherein the wind direction is adjusted through front and rear rows of blades, and the air flow is stopped through an air door. Obviously, this way of achieving the regulation and the cut-off of the air flow, respectively, by means of separate structures, presents operational inconveniences.

Disclosure of Invention

In order to solve the problems caused by the fact that the air flow regulation and the cut-off in the prior art are realized through independent structures, the invention provides an air outlet device.

The air outlet device according to the present invention comprises: a front row of blades arranged to pivot about a first direction to adjust one of a horizontal direction and a vertical direction of air flow; a rear row of blades arranged to pivot about a second direction perpendicular to the first direction to adjust the other one of the horizontal direction and the vertical direction; and a toggle button configured to drive the front row blade or the rear row blade by deflecting the toggle button to adjust a direction of the air flow, and to drive the rear row blade by pressing the toggle button such that adjacent ones of the rear row blades overlap partially to prevent the air flow from passing or to drive the overlapped rear row blades apart to allow the air flow to pass.

Preferably, the deflection of the poking button around the first direction drives the front row of blades to rotate, and the deflection of the poking button around the second direction drives the rear row of blades to rotate.

Preferably, the toggle button includes a swing link connected to the rear row of blades, the swing link swinging in response to pressing of the toggle button in a third direction, the third direction being perpendicular to the first and second directions, respectively, to drive the rear row of blades such that adjacent rear row of blades partially overlap to prevent airflow from passing or to drive the overlapping rear row of blades apart to allow airflow to pass.

Preferably, the air outlet device further comprises a driving track groove matched with the driving pointer on the swing rod, and the driving pointer moves along the driving track groove to drive the swing rod to swing.

Preferably, the driving track groove is arranged on a shell of the air outlet device or on a dial knob base connected with the shell.

Preferably, the air outlet device further comprises a sliding block hinged with the swing rod, and the sliding block responds to the pressing of the poking button along the third direction to move so as to drive the driving pointer to move in the driving track groove.

Preferably, the dial knob includes an outer ball and an inner ball spherically fitted to each other so as to drive the front row of blades or the rear row of blades to adjust either one of the horizontal direction or the vertical direction of air flow by driving the outer ball or the inner ball.

Preferably, deflection of the dial knob about the first direction drives the outer ball, thereby driving the front row of blades; deflection of the toggle button about the second direction drives the inner ball, thereby driving the rear row of blades.

Preferably, the inner ball remains stationary as deflection of the dial knob about the first direction drives the outer ball.

Preferably, the outer ball rotates with the inner ball when deflection of the dial knob about the second direction drives the inner ball.

Preferably, the inner ball includes a recess, and the dial knob includes a spline inserted into the recess so that the spline drives the inner ball when the dial knob is deflected about the second direction; the spline does not drive the inner ball when the dial knob is deflected about the first direction.

Preferably, the groove comprises a first groove bottom and a second groove bottom which are positioned on the inner wall of the inner ball and extend to intersect each other.

Preferably, the front row of blades are in an upper limit position when the spline is in contact with the first groove bottom; when the spline is in contact with the second groove bottom, the front row of blades are in a lower limit position.

Preferably, the pulling button further comprises a handle and a locking piece fixedly connected with the handle, and the handle and the locking piece penetrate through the outer ball and the inner ball so as to drive the outer ball and/or the inner ball to rotate.

Preferably, the spline is provided on the handle or the lock block.

Preferably, the lock block is always in abutment with the slider to define that the slider remains stationary when the dial knob is deflected about the first and second directions.

Preferably, the air outlet device further comprises a locking bar which cooperates with the heart-shaped slot of the locking block to define a partial overlap of adjacent rear row blade retention portions.

Preferably, when the locking bar is engaged with the heart-shaped slot, adjacent ones of the rear row of blades partially overlap to prevent air flow; when the lock bar is separated from the heart-shaped slot, the overlapping rear row of vanes are separated to allow airflow therethrough.

Preferably, the shifting knob further comprises a first shifting fork connected with the front row of blades, and the first shifting fork is connected with the locking block.

Preferably, the shifting knob further comprises a second shifting fork connected with the rear row of blades, and the second shifting fork is connected with the inner ball.

Preferably, the second shifting fork is provided with a follow-up track groove matched with the follow-up pointer of the swinging rod, and the movement of the driving pointer along the driving track groove drives the follow-up pointer to move along the follow-up track groove.

Preferably, the driving track groove has an entrance and a straight line segment extending along the third direction, and the entrance and the straight line segment are connected in a staggered manner in the first direction.

Preferably, when the driving pointer moves from the first straight line section to the second straight line section, the swing rod drives adjacent rear row blades to be partially overlapped.

According to the air outlet device, the air flow direction adjusting and stopping function is integrated on one manual actuating structure, specifically, the air flow direction is adjusted by deflecting the toggle buttons up and down and left and right, the air flow opening and closing function is realized by pressing, and the air outlet device has improved operation convenience in a limited operation space. That is, the air outlet device of the invention realizes the function of controlling the air flow direction by swinging of an actuating mechanism and controlling the air flow to be cut off by pressing under the condition that the air flow is not cut off by an independent air door structure.

Drawings

FIG. 1A is an overall schematic of a vehicle mounted with an air-out device according to a preferred embodiment of the present invention;

FIG. 1B illustrates the interior of the vehicle of FIG. 1A;

FIG. 2A is an assembly view of the internal air outlet device of FIG. 1B;

FIG. 2B is an exploded view of the air outlet device of FIG. 2A;

FIG. 3A is an assembled view of the dial knob of the air outlet device of FIG. 2A, with the base omitted for clarity;

FIG. 3B is a schematic view of a connection structure of a handle of the toggle of FIG. 3A and a vertical fork;

FIG. 3C is a schematic view of a connection structure between a handle of the knob and a horizontal fork of FIG. 3A;

FIG. 4A is a schematic view of the handle of the dial knob of the air outlet device of FIG. 2A connected to the front row of blades, with the horizontal blades in an intermediate position;

FIG. 4B is a schematic view showing the connection relationship of the internal structure of the toggle in the state of FIG. 4A;

FIG. 5A is a schematic view of the handle of the dial knob of the air outlet device of FIG. 2A connected to the front row of blades, with the horizontal blades in an upper limit position;

FIG. 5B is a schematic view showing the connection relationship of the internal structure of the toggle in the state of FIG. 5A;

FIG. 6A is a schematic view of the handle of the dial knob of the air outlet device of FIG. 2A connected to the front row of blades, with the horizontal blades in a lower limit position;

FIG. 6B is a schematic view showing the connection relationship of the internal structure of the toggle in the state of FIG. 6A;

FIG. 7A is a schematic view of the connection of the handle of the dial knob of the air outlet device of FIG. 2A to the rear row of blade sets with the vertical blades in the neutral position and the air outlet device in a fully open state;

FIG. 7B is a schematic view showing the connection relationship of the internal structure of the toggle in the state of FIG. 7A;

FIG. 8A is a schematic view of the handle of the dial knob of the air outlet device of FIG. 2A connected to a rear row of blades, with the vertical blades in a left extreme position;

FIG. 8B is a schematic view showing the connection relationship of the internal structure of the toggle in the state of FIG. 8A;

FIG. 9A is a schematic view of the connection of the handle of the dial knob of the air outlet device of FIG. 2A to the rear row of blades, with the vertical blades in the right extreme position;

FIG. 9B is a schematic view showing the connection relationship of the inner structure of the toggle in the state of FIG. 9A;

FIG. 10A shows the relationship of the positions of the lock lever and the heart-shaped slot of the lock block in the state of FIG. 7A;

FIG. 10B is a top view of FIG. 10A;

fig. 10C shows a positional relationship of a follower finger of the swing lever and a follower track groove of the vertical fork and a positional relationship of a driving finger of the swing lever and a driving track groove of the dial base in the state of fig. 7A;

FIG. 10D is a top view of FIG. 10C;

FIG. 11A is a schematic view of a structure in which a handle of a knob of the air outlet device of FIG. 2A is connected to a rear row of blade sets, wherein the vertical blades are at an intermediate position, and the air outlet device is in a closed state;

FIG. 11B shows the relationship of the positions of the heart-shaped grooves of the lock lever and the lock block in the state of FIG. 11A;

FIG. 11C is a top view of FIG. 11B;

fig. 11D shows a positional relationship of a follower pointer of the swing lever and a follower track groove of the vertical fork and a positional relationship of a driving pointer of the swing lever and a driving track groove of the dial base in the state of fig. 11A;

fig. 11E is a top view of fig. 10D.

Detailed Description

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1A-1B, the vehicle V has an interior I that includes vehicle interior components such as an instrument panel IP, a floor console FC, an overhead console OC, a door panel DP, and the like. The vehicle V further comprises a ventilation system (e.g. for providing conditioned air to an air conditioning system and/or heating system etc.) which provides an air flow to the interior I via an air outlet AV (e.g. installed into a vehicle interior component).

As shown in fig. 2A to 2B, the air outlet device AV according to the present invention includes a casing 10, and a front row blade group 20 and a rear row blade group 30 disposed within the casing 10. The housing 10 provides an air inlet IN, an air outlet OT, and a passage connecting the air inlet IN and the air outlet OT. The air outlet device AV further comprises a dial knob 40 arranged on the housing 10 near the air outlet OT to control the flow and direction of the air flow coming from the inlet IN connected to the ventilation system, which air flow passes through the channels IN the housing 10 and is guided by the front row blade assembly 20 and the rear row blade assembly 30 to achieve a horizontal and vertical blowing. Specifically, when the dial knob 40 is pivoted about a first direction (e.g., horizontal/left-right direction), the rear row blade group 30 remains stationary, and the front row blade group 20 rotates in the same direction with the dial knob 40 to adjust the wind direction in the vertical direction; when the dial knob 40 is pivoted in a second direction (e.g., vertical/up-down direction), the front row blade group 20 remains stationary, and the rear row blade group 30 rotates in the same direction with the dial knob 40 to adjust the wind direction in the horizontal direction; when the dial knob 40 is pressed in a third direction (e.g., front-rear direction), the front row of blade groups 20 is kept stationary, and adjacent blades 301 of the rear row of blade groups 30 are driven to overlap end-to-end by the swing of a swing lever 413 (which will be described later in detail) of the dial knob 40 to prevent air flow from achieving air volume closure, or adjacent blades 301 of the rear row of blade groups 30 are separated to allow air flow from achieving air volume opening. In the present embodiment, the dial knob 40 is pressed to close the air volume, and the dial knob 40 is pressed again to open the air volume, so that the dial knob 40 has a push-push function. It should be understood that it is also possible to set the air volume off by pulling the dial 40 and to set the air volume on by pulling the dial 40 again.

As shown in fig. 2B, the front row vane group 20 includes a plurality of front row vanes or horizontal vanes 201, a follower vane 202, a link 203, and a bracket 204, wherein the follower vane 202 is connected between the housing 10 and the front row vanes 201 to provide a guide to the air flow, all the front row vanes 201 are connected to move in synchronization by the link 203, and both left and right ends of each front row vane 201 are rotatably mounted on the bracket 204, respectively, and the link 203 is connected to (a first fork or horizontal fork 414, which will be described later in detail) a toggle button 40 to drive the front row vane group 20 to rotate by the toggle button 40.

As shown in fig. 2B, the rear row vane set 30 includes a plurality of rear row vanes or vertical vanes 301, a link 302, a bracket 303, a crank 304, and a crank link 305, wherein the plurality of rear row vanes 301 are connected to move synchronously by the link 302, upper and lower ends of each rear row vane 301 are rotatably mounted on the bracket 303, respectively, and leftmost rear row vane 301 is connected to (a second fork or vertical fork 406, which will be described in detail later) a toggle button 40 by the crank 304 and the crank link 305 to drive the rear row vane set 30 to rotate by the toggle button 40.

As shown in fig. 2B and 3A, the toggle 40 includes a handle 401, an outer ball 402, a retaining ring 403, a damper 404, an inner ball 405, a vertical fork 406, a cage 407, an outer ball cover 408, a locking piece 409, a slider 410, a spring 411, a base 412, a swing link 413, a horizontal fork 414, and a lock lever 415. The outer ball 402 and outer ball cover 408 are fixedly attached and disposed about the inner ball 405 to achieve a spherical fit. Outer ball 402 is disposed within damping 404 and damping 404 is secured by eyelet 403 to form a ball hinge in cage 407. After passing through the outer ball 402, the handle 401 is fixedly connected with a locking piece 409 passing through the inner ball 405. Specifically, the spline 4091 (see fig. 3C) of the lock block 409 is inserted into the open slot 4011 on the handle 401 to achieve synchronous movement of the lock block 409 with the handle 401. The slider 410 is mounted on the base 412 to be movable back and forth by a spring 411. The locking piece 409 is interference-fitted with the slider 410 (see fig. 4B) to move back and forth with respect to the slider 410 while having a degree of freedom of deflection up and down, left and right with respect to the slider 410, so that the locking piece 409 always abuts against the slider 410 to define the slider 410 to remain stationary when the dial is deflected up and down, left and right. The swing link 413 is hinge-fitted with the slider 410 (see fig. 10B) to move forward and backward with the slider 410 while having a degree of freedom of rotation with respect to the slider 410. As shown in fig. 3B, the vertical fork 406 is hinged to the inner ball 405 such that the vertical fork 406 can rotate with respect to the inner ball 405. It should be understood that the articulation herein is by way of example only and not limitation. Returning to fig. 2B, the vertical fork 406 is also connected to the rear row blade set 30 through a swing link 413 to drive the rear row blade set 30. As shown in fig. 3C, the horizontal fork 414 is hinged to the locking piece 409 such that the horizontal fork 414 can rotate with respect to the locking piece 409 about a hinge shaft extending in the up-down direction. It should be understood that the articulation herein is by way of example only and not limitation. Returning to FIG. 2B, a horizontal fork 414 is also coupled to the front row of blade sets 20 to drive the front row of blade sets 20. In addition, lock bar 415 is mounted on base 412 at one end and mates with the heart-shaped slot of lock block 409 at the other end to define a partial overlap of adjacent rear row of blades 301.

When the handle 401 is in the neutral position, the front row of blades 201 is in the neutral position, as shown in fig. 4A. As shown in fig. 4B, the inner ball 405 includes a groove including a first groove bottom 4051 and a second groove bottom 4052 extending intersecting each other on an inner wall of the inner ball 405, and the spline 4091 of the lock piece 409 is kept spaced apart from both the first groove bottom 4051 and the second groove bottom 4052 when the handle 401 is in the intermediate position. It will be appreciated that the arrangement of the splines 4091 (see fig. 3C) and grooves may be reversed, i.e. grooves having groove bottoms extending mutually intersecting are provided on the locking piece 409, while splines are provided on the inner ball 405. In addition, since the locking piece 409 is fixedly connected to the handle 401, the spline may be provided on the handle 401.

As shown in fig. 5A to 5B, when the handle 401 is deflected upward, the handle 401 drives the outer ball 402 to rotate, and at the same time, the spline 4091 of the locking piece 409 moves toward the first groove bottom 4051, the inner ball 405 remains stationary, so the vertical fork 406 connected to the inner ball 405 also remains stationary, and the rear blade group 30 remains stationary. The upward deflection of the handle 401 also drives the locking piece 409 to rotate downward, which in turn drives the horizontal fork 414 connected to the locking piece 409 to swing downward. The horizontal shifting fork 414 drives the connecting rod 203 to move downwards, and the connecting rod 203 is connected with the rear end of the front row of blades 201, so that the connecting rod 203 pushes the front row of blades 201 to overturn downwards around the front end rotating shaft, thereby realizing the function of upwards adjusting the wind direction until reaching the upper limit position, and the spline contacts with the first groove bottom 4051.

As shown in fig. 6A-6B, when the handle 401 is deflected downward, the handle 401 drives the outer ball 402 to rotate, and at the same time, the spline 4091 of the locking piece 409 moves toward the second groove bottom 4052, the inner ball 405 remains stationary, so the vertical fork 406 connected to the inner ball 405 also remains stationary, and the rear blade group 30 remains stationary. The downward deflection of the handle 401 also drives the locking piece 409 to rotate upward, which in turn drives the horizontal fork 414 connected to the locking piece 409 to swing upward. The horizontal shifting fork 414 drives the connecting rod 203 to move upwards again, and the connecting rod 203 is connected with the rear end of the front row of blades 201, so that the connecting rod 203 pushes the front row of blades 201 to turn upwards around the front end rotating shaft, thereby realizing the function of downward wind direction adjustment until reaching the lower limit position, and the spline contacts with the second groove bottom 4052.

As shown in fig. 7A-7B, when the handle 401 is in the neutral position, the rear row of blades 301 is in the neutral position.

As shown in fig. 8A-8B, when the handle 401 deflects leftwards, the handle 401 drives the outer ball 402, the inner ball 405 and the vertical shifting fork 406 to rotate together, the vertical shifting fork 406 drives the swing rod 413 to rotate, the crank connecting rod 305 is hinged between the swing rod 413 and the crank 304, and the rear row of blades 301 rotates leftwards along with the swing rod, so that the function of leftwards adjusting the wind direction is realized until the left limit position is reached. Meanwhile, although the inner ball 405 rotates along with the handle 401 to drive the locking piece 409 to rotate, the rotation of the locking piece 409 does not drive the shifting fork 414 to move because the locking piece 409 is hinged with the horizontal shifting fork 414, so that the front row blades 201 are kept still. It should be appreciated that in embodiments where the horizontal fork 414 is not hinged to the locking block 409, movement of the horizontal fork 414 does not necessarily result in movement of the front row of blades 201, which may also hold the front row of blades 201 stationary, due to the small magnitude of horizontal movement of the horizontal fork 414, or sufficient space for movement.

As shown in fig. 9A-9B, when the handle 401 deflects rightward, the handle 401 drives the outer ball 402, the inner ball 405 and the vertical shift fork 406 to rotate together, the vertical shift fork 406 drives the swing rod 413 to rotate, the crank link 305 is hinged between the swing rod 413 and the crank 304, and the rear row of blades 301 rotates rightward along with the swing rod, so that a function of adjusting the wind direction rightward is achieved until a right limit position is reached. Meanwhile, although the inner ball 405 rotates along with the handle 401 to drive the locking piece 409 to rotate, the rotation of the locking piece 409 does not drive the shifting fork 414 to move because the locking piece 409 is hinged with the horizontal shifting fork 414, so that the front row blades 201 are kept still.

Returning to fig. 7A, when the handle 401 is in the non-depressed neutral position, the rear row of blades 301 is in the neutral position and the air outlet device is in a fully open state. At this time, as shown in fig. 10A to 10B, the front end of the lock lever 415 is located at the entrance of a heart-shaped groove (also referred to as a labyrinth groove) of the lock piece 409; as shown in fig. 10C to 10D, the driving pointer 4132 of the swing link 413 is located at the entrance of the driving track groove 4121 of the base 412, and the follower pointer 4131 of the swing link 413 is located at the first straight line section 4061a of the follower track groove 4061 of the vertical fork 406 extending in the front-rear direction. It should be understood that the driving track groove is not necessarily disposed on the base 412 of the dial knob 40, and may be disposed on the housing 10 of the air outlet device when the housing 10 (see fig. 2B) of the air outlet device is integrally formed with the base 412 (see fig. 2B) of the dial knob 40.

The handle 401 is pressed, the front end of the lock lever 415 enters the heart-shaped groove of the lock piece 409 from the entrance (i.e., the lock lever 415 is engaged with the heart-shaped groove) until reaching the lock position shown in fig. 11B to 11C, simultaneously, the driving pointer 4132 of the swing lever 413 enters the fold line segment until entering the straight line segment 4121A extending in the front-rear direction of the driving track groove 4121 of the base 412 shown in fig. 11D to 11E, and the follower pointer 4131 of the swing lever 413 enters the fold line segment until entering the second straight line segment 4061B extending in the front-rear direction of the follower track groove 4061 of the vertical fork 406 shown in fig. 11D to 11E, thereby driving the adjacent blades 301 of the rear row blade group 30 to overlap head-tail partially as shown in fig. 11A, and the air outlet device is in the closed state. It will be appreciated that during this pressing process, the fore-and-aft extending slots provided in the horizontal fork 414 allow movement independent of the front row of blades 20, i.e. the front row of blades 201, to remain stationary during the pressing process.

The handle 401 is pressed again, the front end of the lock lever 515 is unlocked from the locking position along the other side of the heart-shaped groove (i.e., the lock lever 415 is separated from the heart-shaped groove), and the overlapped rear row of blades 301 is separated by the rotation of the swing rod 413 to allow air flow to pass through, so that the air quantity is opened, and the air outlet device is in an opened state.

It is noted that the present invention (e.g., inventive concepts, etc.) has been described in the specification and/or illustrated in the drawings of this patent document according to exemplary embodiments; the examples of the present invention are presented by way of example only and are not intended to limit the scope of the invention. The structures and/or arrangements of the elements of the inventive concepts embodied in the present invention as described in the specification and/or illustrated in the drawings are illustrative only. Although exemplary embodiments of the present invention have been described in detail in this patent document, those of ordinary skill in the art will readily appreciate that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this invention. It should also be noted that various/other modifications, changes, substitutions, equivalents, alterations, omissions, and the like, may be made in the configuration and/or arrangement of the exemplary embodiments (e.g., in the form, design, structure, means, function, system, process/method, step, sequence of process/method steps, operation, operating conditions, performance, materials, compositions, combinations, etc.) without departing from the scope of the invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of this invention. The scope of the present invention is not intended to be limited to the particular subject matter (e.g., details, structures, functions, materials, acts, steps, sequences, systems, results, etc.) described in the specification and/or drawings of this patent document. It is intended that the claims of this patent document be interpreted appropriately as covering the full range of the inventive subject matter (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); it is to be understood that the terminology used in the present patent document is for the purpose of providing a description of the subject matter of the exemplary embodiments, and is not intended to limit the scope of the invention.

It is also noted that, according to exemplary embodiments, the present invention may include conventional techniques (e.g., techniques implemented and/or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, or any other suitable technique (now and/or in the future) having the ability to perform the functions and procedures/operations described in the specification and/or illustrated in the figures. All such techniques (e.g., techniques implemented in examples, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the invention of this patent document.

Claims

1. An air-out device, characterized in that, this air-out device includes:

a front row of blades arranged to pivot about a first direction to adjust one of a horizontal direction and a vertical direction of air flow;

a rear row of blades arranged to pivot about a second direction perpendicular to the first direction to adjust the other one of the horizontal direction and the vertical direction; and

a toggle button arranged to drive either the front row of vanes or the rear row of vanes by deflecting the toggle button to adjust the direction of the air flow and to drive the rear row of vanes by depressing the toggle button such that adjacent ones of the rear row of vanes overlap in part to prevent the air flow from passing or to drive the overlapping rear row of vanes apart to allow the air flow to pass.

2. The air outlet device according to claim 1, wherein deflection of the dial knob about the first direction drives rotation of the front row of blades, and deflection of the dial knob about the second direction drives rotation of the rear row of blades.

3. The air outlet device of claim 1, wherein the toggle button includes a rocker arm coupled to the rear row of blades, the rocker arm being configured to oscillate in response to depression of the toggle button in a third direction, the third direction being perpendicular to the first and second directions, respectively, to drive the rear row of blades such that adjacent rear row of blades partially overlap to prevent airflow through or to drive the overlapping rear row of blades apart to allow airflow through.

4. An air outlet device according to claim 3, further comprising a drive track slot cooperating with a drive pointer on the pendulum rod, movement of the drive pointer along the drive track slot driving the pendulum rod to oscillate.

5. The air outlet device according to claim 4, wherein the driving track groove is arranged on a housing of the air outlet device or on a dial base connected with the housing.

6. The air outlet device according to claim 4, further comprising a slider hinged to the swing rod, wherein the slider moves in response to pressing of the dial button in the third direction to drive the driving pointer to move in the driving track groove.

7. The air outlet device according to claim 6, wherein the dial knob includes an outer ball and an inner ball spherically fitted to each other so as to drive the front row of blades or the rear row of blades to adjust either one of a horizontal direction or a vertical direction of air flow by driving the outer ball or the inner ball.

8. The air outlet device of claim 7, wherein deflection of the dial knob about the first direction drives the outer ball, thereby driving the front row of vanes; deflection of the toggle button about the second direction drives the inner ball, thereby driving the rear row of blades.

9. The air outlet device of claim 8, wherein the inner ball remains stationary when deflection of the dial knob about the first direction drives the outer ball.

10. The air outlet device of claim 8, wherein the outer ball rotates with the inner ball when the deflection of the dial knob about the second direction drives the inner ball.

11. The air outlet device of claim 7, wherein the inner ball includes a recess, the dial knob including a spline inserted into the recess such that when the dial knob is deflected about the second direction, the spline drives the inner ball; the spline does not drive the inner ball when the dial knob is deflected about the first direction.

12. The air outlet device of claim 11, wherein the groove comprises a first groove bottom and a second groove bottom located on an inner wall of the inner ball and extending to intersect each other.

13. The air outlet device of claim 12 wherein the front row of vanes are in an upper limit position when the spline is in contact with the first slot bottom; when the spline is in contact with the second groove bottom, the front row of blades are in a lower limit position.

14. The air outlet device according to claim 11, wherein the pulling button further comprises a handle and a locking piece fixedly connected with the handle, and the handle and the locking piece penetrate through the outer ball and the inner ball so as to drive the outer ball and/or the inner ball to rotate.

15. The air outlet device of claim 14, wherein the spline is provided on the handle or the lock block.

16. The air outlet device of claim 14, wherein the lock block is always in abutment with the slider to define the slider to remain stationary when the dial knob is deflected about the first and second directions.

17. The air outlet device of claim 14, further comprising a locking bar that mates with the heart-shaped slot of the locking block to define adjacent ones of the rear row of blade retention portions overlapping.

18. The air outlet device of claim 17 wherein when the locking bar is engaged with the heart-shaped slot, adjacent ones of the rear row of vanes partially overlap to prevent air flow; when the lock bar is separated from the heart-shaped slot, the overlapping rear row of vanes are separated to allow airflow therethrough.

19. The air outlet device of claim 14, wherein the toggle button further comprises a first fork coupled to the front row of blades, the first fork coupled to the locking block.

20. The air outlet device of claim 14, wherein the shift knob further comprises a second shift fork coupled to the rear row of blades, the second shift fork coupled to the inner ball.

21. The air outlet device according to claim 20, wherein the second shifting fork is provided with a follow-up track groove matched with the follow-up pointer of the swinging rod, and the movement of the driving pointer along the driving track groove drives the follow-up pointer to move along the follow-up track groove.

22. The air outlet device according to claim 4, wherein the driving track groove has an inlet and a straight line segment extending along the third direction, and the inlet and the straight line segment are connected in a staggered manner in the first direction.

23. The air outlet device of claim 22 wherein the pendulum bar drives adjacent ones of the rear row of vanes to partially overlap as the drive pointer moves from the first linear section to the second linear section.