A driving mechanism for realizing grille blades moving in different time sequences

Abstract

The present invention relates to a driving mechanism for realizing different time sequence movement of grille blades, comprising a frame and at least two grilles arranged on the frame, the at least two grilles are connected to a motor through a crank connecting rod mechanism, the at least two grilles respectively include active blades provided with a driving shaft, the crank connecting rod mechanism includes a driving rod, the driving rod is provided with at least two slide grooves, the driving shaft extends through the slide grooves, the slide grooves respectively include a moving section and a retaining section, the extension direction of the moving section forms a certain angle with the moving direction of the driving rod, the extension direction of the retaining section remains parallel to the moving direction of the driving rod, when the driving shaft of the active blade of one of the at least two grilles is in the moving section of its corresponding slide groove, the driving shaft of the active blade of another of the at least two grilles is in the retaining section of its corresponding slide groove. The present invention can control the front and rear order of opening and closing of different grilles, and realize asynchronous driving of multiple grilles by a single motor.

Description

Technical Field

[0001] The present invention relates to the field of automobile interior and exterior decoration, and more particularly to a driving mechanism for realizing different time sequence movements of grille blades. Background Art

[0002] With the popularity of active grilles, there are many ways to open and close the grille blades. However, currently, most grilles on the market are driven by a single motor, that is, one motor controls only one grille. If multiple grilles need to be set, this method has high production costs and requires a larger space for arrangement. Arranging multiple grilles in a limited space will also make the space structure of the vehicle more complicated. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention provides a driving mechanism for realizing the different time sequence movements of grille blades, which can asynchronously drive two or more grilles under the action of a single motor.

[0004] The present invention provides a driving mechanism for realizing different time-sequence movements of grille blades, comprising a frame and at least two grilles arranged on the frame, the at least two grilles are connected to a motor through a crank-connecting rod mechanism, the at least two grilles respectively include active blades provided with a driving shaft, the crank-connecting rod mechanism includes a driving rod, the driving rod is provided with at least two slide grooves, the driving shaft extends through the slide grooves, the slide grooves respectively include a moving section and a retaining section, the extension direction of the moving section forms a certain angle with the moving direction of the driving rod, the extension direction of the retaining section remains parallel to the moving direction of the driving rod, when the driving shaft of the active blade of one of the at least two grilles is in the moving section of its corresponding slide groove, the driving shaft of the active blade of another of the at least two grilles is in the retaining section of its corresponding slide groove.

[0005] Preferably, the angle ranges from greater than 90 degrees to less than 180 degrees.

[0006] Furthermore, the crank-connecting rod mechanism also includes a connecting shaft, which is slidably connected to the driving rod and rotationally connected to the motor.

[0007] Furthermore, the connecting shaft is provided with a groove, the driving rod is provided with a stop point, and the stop point is accommodated in the groove.

[0008] Furthermore, the crank-connecting rod mechanism includes two driving rods, a connecting shaft and a cross bar, the cross bar is fixedly connected to the two driving rods, and the connecting shaft is slidably connected to the cross bar and rotationally connected to the motor.

[0009] Furthermore, the connecting shaft is provided with a groove, the cross bar is provided with a stop point, and the stop point is accommodated in the groove.

[0010] Furthermore, an active blade rotating shaft is also provided on the active blade, and both ends of the active blade rotating shaft are rotatably connected to the frame.

[0011] Furthermore, the at least two grilles further include driven blades, and the active blades and the driven blades are both fixedly connected to a connecting rod.

[0012] Furthermore, the connecting rod includes a plurality of extension portions, each of which is fixedly connected to one of the active blade and the driven blade.

[0013] Furthermore, a driven blade rotating shaft is provided on the driven blade, and both ends of the driven blade rotating shaft are rotatably connected to the frame.

[0014] The driving mechanism of the present invention is provided with a crank-connecting rod mechanism, in which slide grooves corresponding to different grilles are arranged, and the movement of the driving shafts of the active blades of different grilles in the slide grooves is utilized to control the front and rear sequence of opening and closing of different grilles, thereby realizing asynchronous driving of multiple grilles by a single motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a driving mechanism for realizing grille blades moving in different time sequences according to the first embodiment of the present invention.

[0016] Figure 2 It is a rear view of a driving mechanism for realizing the different time sequence movements of grille blades according to the first embodiment of the present invention.

[0017] Figure 3 yes Figure 2 Schematic diagram of the connection between the center link and the grille blades.

[0018] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle drive rod.

[0019] FIG5(a) is a schematic diagram of a state in which the first grille is closed and the second grille is gradually opened; FIG5(b) is a schematic diagram of a movement state of the drive shaft in the slide slot corresponding to the state of FIG5(a).

[0020] FIG6(a) is a schematic diagram of a state in which the first grille is gradually opened and the second grille is fully opened; FIG6(b) is a schematic diagram of a movement state of the drive shaft in the slide groove corresponding to the state of FIG6(a).

[0021] FIG. 7( a ) is a schematic diagram of a state in which both the first grille and the second grille are fully opened; FIG. 7( b ) is a schematic diagram of a motion state of the drive shaft in the slide slot corresponding to the state of FIG. 7( a ).

[0022] Figure 8 It is a structural schematic diagram of a driving mechanism for realizing grille blades moving in different time sequences according to the second embodiment of the present invention.

[0023] Fig. 9 It is a structural schematic diagram of a driving mechanism for realizing grille blades moving in different time sequences according to the third embodiment of the present invention. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0025] Embodiment 1

[0026] like Figure 1 and Figure 2 As shown, a driving mechanism for realizing different time-sequenced movements of grille blades in embodiment 1 of the present invention includes a frame 1, on which a first grille 2 located at the upper part and a second grille 3 located at the lower part are provided, and the first grille 2 and the second grille 3 are connected to a motor 5 through a crank-connecting rod mechanism 4, and the motor 5 realizes asynchronous opening and closing of the first grille 2 and the second grille 3 by controlling the movement of the crank-connecting rod mechanism 4.

[0027] The first grille 2 includes a first active blade 21 and a plurality of first driven blades 22 , and the first active blade 21 and the plurality of first driven blades 22 are fixedly connected to the first connecting rod 23 .

[0028] Specifically, the first active blade 21 is provided with an active blade rotating shaft 211 and a first driving shaft 212, both ends of the active blade rotating shaft 211 are rotatably connected to the frame 1, and the first driving shaft 212 is slidably connected to the crank connecting rod mechanism 4. The first driven blade 22 is provided with a driven blade rotating shaft 221, and both ends of the driven blade rotating shaft 221 are rotatably connected to the frame 1.

[0029] like Figure 3 As shown, the first connecting rod 23 includes a plurality of extension portions 231 , the number of the extension portions 231 is the same as the total number of blades in the first grille 2 (the number of the first active blades 21 plus the first driven blades 22 ), and each extension portion 231 is fixedly connected to a blade in the first grille 2 .

[0030] When the first active blade 21 is driven to rotate along its rotation axis 211, since it is connected to the first connecting rod 23, the first active blade 21 drives the first connecting rod 23 to move. At the same time, since the first connecting rod 23 is connected to the first driven blade 22, the first connecting rod 23 drives the first driven blade 22 to rotate along its rotation axis 221. In this way, the entire first grille 2 can be switched between an open state and a closed state.

[0031] Similar to the first grille 2, the second grille 3 includes a second active blade 31 and a plurality of second driven blades 32, the second active blade 31 and the plurality of first driven blades 32 are fixedly connected to the second connecting rod 33, and the second active blade 31 is provided with an active blade rotating shaft 311 and a second driving shaft 312. The structure and movement principle of the active blade rotating shaft 311, the second driving shaft 312, the second driven blade 32 and the second connecting rod 33 are the same as those of the active blade rotating shaft 211, the first driving shaft 212, the first driven blade 22 and the first connecting rod 23, and are not described in detail here.

[0032] The crank-connecting rod mechanism 4 includes a connecting shaft 41 and a driving rod 43 provided with a stop point 42. The connecting shaft 41 is rotatably connected to the motor 5, and a groove 44 is provided on the connecting shaft 41. The stop point 42 on the driving rod 43 is accommodated in the groove 44. When the motor 5 drives the connecting shaft 41 to rotate, the stop point 42 slides in the groove 44, thereby driving the driving rod 43 to move. The driving rod 43 is basically applicable to all non-metallic (such as PA6, PP, PC, PA6+GF30, ASA, etc.) and metal materials (such as iron, aluminum, alloy, copper, etc.).

[0033] like Figure 4 As shown, the driving rod 43 includes a first slide groove 44 and a second slide groove 45. The first driving shaft 212 of the first active blade 21 extends through the first slide groove 44, so that the first driving shaft 212 slides in the first slide groove 44; the second driving shaft 312 of the second active blade 31 extends through the second slide groove 45, so that the second driving shaft 312 slides in the second slide groove 45.

[0034] Specifically, the first slide groove 44 has a retaining section a, a moving section b and a retaining section c, and the second slide groove 45 has a moving section d and a retaining section e. The retaining sections a, c and e are parallel to the moving direction of the driving rod 43, so that when the first driving shaft 212 slides in the retaining sections a and c, the first active blade 21 does not rotate, and when the second driving shaft 312 slides in the retaining section e, the second active blade 31 does not rotate. The moving sections b and d form a certain angle with the moving direction of the driving rod 43, and the angle range is greater than 90 degrees and less than 180 degrees, so that when the first driving shaft 212 slides in the moving section b, the first active blade 21 can rotate, and when the second driving shaft 312 slides in the moving section d, the second active blade 31 can rotate.

[0035] When the motor 5 starts working, the connecting shaft 41 starts to rotate, and the driving rod 43 starts to move in a straight line under the action of the blocking point 42. At this time, the corresponding grille state is shown in Figure 5(a), and the movement positions of the first driving shaft 212 and the second driving shaft 312 are shown in Figure 5(b): the second driving shaft 312 enters the movement section d, driving the second active blade 31 to rotate, and then driving the second grille 3 to gradually open; the first driving shaft 212 enters the holding section a, and since the first active blade 21 does not rotate, the first grille 2 remains in a closed state.

[0036] As shown in Figures 6(a) and 6(b), when the second drive shaft 312 enters the holding section e from the moving section d, the second grille 3 is fully opened and maintained; the first drive shaft 212 enters the moving section b from the holding section a, and at this time the first grille 2 enters a gradually open state from a closed state.

[0037] As shown in Figures 7(a) and 7(b), when the first drive shaft 212 enters the holding section c from the moving section b, the first grille 2 is fully opened and maintained; at this time, the second drive shaft 312 is still moving in the holding section e, and the second grille 3 remains fully open.

[0038] When the first grille 2 and the second grille 3 are closed, the movement process is opposite to the above.

[0039] From the movement process of the above grille, it can be seen that the length of the moving segment d in the second chute 45 determines the time required for the second grille 3 to be fully opened and the opening angle of each blade in the second grille 3: the longer the moving segment d is, the longer the time required for the second grille 3 to be fully opened and the larger the opening angle of each blade; conversely, the shorter the moving segment d is, the shorter the time required for the second grille 3 to be fully opened and the smaller the opening angle of each blade. The angle formed by the moving segment d and the holding segment e in the second chute 45 and the movement speed of the driving rod 43 determine the speed of opening of the second grille 3: the larger the angle formed by the moving segment d and the holding segment e, the slower the opening speed of the second grille 3; the slower the movement speed of the driving rod 43, the slower the opening speed of the second grille 3. Similarly, it can be known that the length of the holding segment a in the first chute 44 determines the time for the delayed opening of the first grille 2, the length of the moving segment b determines the time required for the first grille 2 to be fully opened and the opening angle of each blade in the first grille 2, and the holding segment c can be used to limit the first grille 2 to prevent excessive rotation of the blades.

[0040] Therefore, the above-mentioned moving sections and holding sections can be set differently to meet actual needs. For example, the holding section a in the first chute 44 and the moving section d in the second chute 45 can be set so that when the second drive shaft 312 finishes moving in the moving section d, the first drive shaft 212 is still moving in the holding section a, or when the second drive shaft 312 finishes moving in the moving section d, the first drive shaft 212 also finishes moving in the holding section a. The angle formed by the holding section a and the moving section b and the angle formed by the moving section d and the holding section e can also be set to be equal or unequal, so that the opening speeds of the first grille 2 and the second grille 3 are the same or different. It should be understood that other settings can also be made for the first chute 44 and the second chute 45 to meet the needs in other situations.

[0041] Through the above arrangement, the present invention can enable the first grille 2 and the second grille 3 to be opened and closed sequentially, thereby realizing asynchronous driving of the single-sided double grilles by a single motor.

[0042] Embodiment 2

[0043] like Figure 8 As shown, a driving mechanism for realizing different time sequence movement of grille blades in the second embodiment of the present invention comprises a frame 1, on which a first grille 2, a second grille 3, a third grille 2' and a fourth grille 3' are arranged, the first grille 2 and the third grille 2' are symmetrically arranged, and the second grille 3 and the fourth grille 3' are symmetrically arranged. The first grille 2, the second grille 3, the third grille 2' and the fourth grille 3' are connected to a motor 5 through a crank connecting rod mechanism 4', and the motor 5 realizes asynchronous opening and closing of the first grille 2 and the second grille 3, and asynchronous opening and closing of the third grille 2' and the fourth grille 3' by controlling the crank connecting rod mechanism 4'.

[0044] The crank-connecting rod mechanism 4' comprises a connecting shaft 41', a cross bar 43' provided with a stop point 42', and driving rods 44' symmetrically arranged at both ends of the cross bar 43'. The connecting shaft 41' is rotatably connected to the motor 5, and a groove 45' is provided on the connecting shaft 41', and the stop point 42' on the cross bar 43' is accommodated in the groove 45'. When the motor 5 drives the connecting shaft 41' to rotate, the stop point 42' slides in the groove 45', thereby driving the two driving rods 44' to move.

[0045] The structures of the third and fourth grilles 2 ′, 3 ′ are similar to those of the first and second grilles 2 , 3 , and the structure of the driving rod 44 ′ is similar to that of the driving rod 43 in the first embodiment, which will not be described in detail herein.

[0046] Through the above arrangement, the present invention can sequentially open and close the first grille 2 and the second grille 3, and sequentially open and close the third grille 2' and the fourth grille 3', thereby realizing asynchronous driving of the double grilles on both sides by a single motor.

[0047] Embodiment 3

[0048] like Fig. 9 As shown, a driving mechanism for realizing different time sequence movement of grille blades in the third embodiment of the present invention comprises a frame 1, on which a first grille 2, a second grille 3, a third grille 2' and a fourth grille 3' are arranged, the first grille 2 and the third grille 2' are symmetrically arranged, and the second grille 3 and the fourth grille 3' are symmetrically arranged. The first grille 2 and the second grille 3 are connected to a motor 5 through a crank connecting rod mechanism 4, and the motor 5 realizes asynchronous opening and closing of the first grille 2 and the second grille 3 by controlling the crank connecting rod mechanism 4. The third grille 2' and the fourth grille 3' are connected to the motor 5' through the crank connecting rod mechanism 4', and the motor 5' realizes asynchronous opening and closing of the third grille 2' and the fourth grille 3' by controlling the crank connecting rod mechanism 4'.

[0049] The structure of the crank-connecting rod mechanism 4' is similar to that of the crank-connecting rod mechanism 4, and will not be described in detail. Through the above arrangement, the present invention can realize the asynchronous driving of the double-sided double grilles by the double motors.

[0050] The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes can be made to the above embodiments of the present invention. For example, the number of grilles can be increased, and the corresponding crank-connecting rod mechanism can be changed according to the number of grilles to realize asynchronous drive of multiple grilles on one side, asynchronous drive of multiple grilles on both sides, and so on. For another example, the drive mechanism composed of the motor and the crank-connecting rod mechanism can be replaced by a gear rack, a worm gear, a ball screw (screw) or other drive mechanism. For another example, the grille can be arranged horizontally or at any other angle, and the blade shaft can also be non-parallel to the blade, so that the grille blades can be opened up and down, left and right, or at any other angle. That is, all simple, equivalent changes and modifications made according to the claims and the contents of the specification of the present invention application fall within the scope of protection of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A driving mechanism for realizing the different time sequence motion of grille blades, characterized in that: The invention comprises a frame and at least two grilles arranged on the frame, wherein the at least two grilles are connected to a motor through a crank-connecting rod mechanism, and the at least two grilles respectively comprise active blades provided with a driving shaft, and the crank-connecting rod mechanism comprises a driving rod, and the driving rod is provided with a first slide slot and a second slide slot, and the driving shaft extends through the first slide slot and the second slide slot respectively, and the first slide slot has two retaining sections and a moving section, and the second slide slot has a retaining section and a moving section, and the extending directions of the moving sections are all at a certain angle to the moving direction of the driving rod, and the extending directions of the retaining sections are all parallel to the moving direction of the driving rod; when the driving shaft of the active blade of one of the at least two grilles is in the moving section of the second slide slot, the driving shaft of the active blade of another of the at least two grilles is in one of the retaining sections of the first slide slot; when the driving shaft of the active blade of one of the at least two grilles is in the retaining section of the second slide slot, the driving shaft of the active blade of another of the at least two grilles is in the moving section of the first slide slot or in another retaining section of the first slide slot.

2. The driving mechanism for realizing the different time sequence movement of grille blades according to claim 1, characterized in that: The angle ranges from greater than 90 degrees to less than 180 degrees.

3. The driving mechanism for realizing the different time sequence movement of grille blades according to claim 1, characterized in that: The crank-connecting rod mechanism further comprises a connecting shaft, wherein the connecting shaft is slidably connected to the driving rod and is rotationally connected to the motor.

4. The driving mechanism for realizing the different time sequence movement of grille blades according to claim 3, characterized in that: The connecting shaft is provided with a groove, the driving rod is provided with a stop point, and the stop point is accommodated in the groove.

5. The driving mechanism for realizing the different time sequence motion of grille blades according to claim 1, characterized in that: The crank-connecting rod mechanism comprises two driving rods, a connecting shaft and a cross bar, wherein the cross bar is fixedly connected to the two driving rods, and the connecting shaft is slidably connected to the cross bar and rotationally connected to the motor.

6. The driving mechanism for realizing the different time sequence motion of grille blades according to claim 5, characterized in that: The connecting shaft is provided with a groove, the cross bar is provided with a stop point, and the stop point is accommodated in the groove.

7. The driving mechanism for realizing the different time sequence motion of grille blades according to claim 1, characterized in that: The active blade is also provided with an active blade rotating shaft, and both ends of the active blade rotating shaft are rotatably connected to the frame.

8. The driving mechanism for realizing the different time sequence motion of grille blades according to claim 1, characterized in that: The at least two grilles further include driven blades, and the active blades and the driven blades are both fixedly connected to a connecting rod.

9. The driving mechanism for realizing the different time sequence motion of grille blades according to claim 8, characterized in that: The connecting rod includes a plurality of extension parts, each of which is fixedly connected to one of the active blade and the driven blade.

10. The driving mechanism for realizing the different time sequence movement of grille blades according to claim 8, characterized in that: The driven blade is provided with a driven blade rotating shaft, and both ends of the driven blade rotating shaft are rotatably connected to the frame.

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