Flat push type hidden door handle reset driving structure and method of using the same

Abstract

The present application relates to the field of automobile handle accessories, in particular to a flat push type hidden door handle reset driving structure and a using method thereof. The flat push type hidden door handle reset driving structure comprises a door handle (1) and a handle base (15), and is characterized in that: the structure further comprises a toothed starting strip (2), a driving gear upper shell (3), a driving double-end rack (4), a first driving gear (5), a second driving gear (6), a first reset torsional spring (7), a third driving gear (8), a driving wheel (9), a driving gear lower shell (10), a one-way rotating supporting leg (11), a driving cam (12), a second reset torsional spring (13) and a reset swing lever (14), and the toothed starting strip (2), the driving double-end rack (4), the first driving gear (5), the second driving gear (6), the third driving gear (8) and the driving wheel (9) are all arranged in the mounting cavity. The present application runs smoothly, stably and reliably.

Description

Technical Field

[0001] This invention relates to the field of automotive door handle accessories, specifically a push-type concealed door handle reset drive structure and its usage method. Background Technology

[0002] With increasingly higher demands for automotive aesthetics, concealed door handles are gaining wider application due to their flush fit with the car body and their overall smooth and beautiful appearance. However, because of the relatively limited space, conventional drive mechanisms used for ordinary protruding door handles are too bulky and prone to obstruction, making them unsuitable for concealed handles. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology and provide a handle accessory that is compact, runs smoothly, and is stable and reliable, this invention discloses a push-type hidden door handle reset drive structure and its usage method.

[0004] The present invention achieves its objective through the following technical solution: A push-type concealed car door handle reset drive structure includes a door handle and a handle base, with the door handle covering the handle base. It is characterized by further including a toothed start bar, an upper housing of a drive gear, a double-ended drive rack, a first drive gear, a second drive gear, a first reset torsion spring, a third drive gear, a drive wheel, a lower housing of the drive gear, a one-way rotating support foot, a drive cam, a second reset torsion spring, and a reset rocker arm. The upper housing of the drive gear covers the lower housing of the drive gear, forming a mounting cavity. The toothed starter bar, the double-ended drive rack, the first drive gear, the second drive gear, the third drive gear, and the drive wheel are all housed within this mounting cavity. The drive wheel has a ratchet structure. The toothed starter bar and the double-ended drive rack mesh at one end. The other end of the double-ended drive rack, the first drive gear, the second drive gear, and the third drive gear are sequentially arranged and meshed from one side of the toothed starter bar. The third drive gear is coaxially mounted with the drive wheel and connected via a spline. A reset torsion spring is sleeved on the gear shaft of the third drive gear. One end of the first reset torsion spring is stuck in the torsion spring groove on the inner side of the upper housing of the drive gear, which is directly opposite the third drive gear. The other end of the first reset torsion spring abuts against the third drive gear. The drive wheel and the drive cam are coaxially mounted, and the drive wheel is connected to the drive cam through the ratchet mechanism of the drive wheel. One side of the drive cam is provided with a one-way rotating support foot. The other side of the drive cam is rotatably connected to one end of the reset rocker arm through a pin with a second reset torsion spring sleeved on it. The other end of the reset rocker arm is located inside the door handle.

[0005] The aforementioned push-type hidden door handle reset drive structure is characterized in that the transmission ratio of the first drive gear, the second drive gear, and the third drive gear is 3:2:3.

[0006] In use, when the user presses the door handle before opening the door, the toothed starter bar is also pressed down, causing the double-headed rack to rotate clockwise. Simultaneously, this causes the first drive gear to rotate counter-clockwise, the second drive gear to rotate clockwise, and the third drive gear to rotate counter-clockwise. Since the third drive gear is splinedly connected to the drive wheel, the entire drive gear structure is installed in the upper and lower housings of the drive gear. One end of the first return torsion spring is engaged in a torsion spring groove in the third drive gear and the upper housing of the drive gear. At this time, the drive wheel also rotates counter-clockwise, and the drive wheel and drive cam are then driven to rotate by a ratchet structure. When the drive wheel rotates clockwise, a one-way rotating support foot blocks the drive cam from rotating. As the third drive gear rotates counter-clockwise, the first return torsion spring gradually accumulates elastic potential energy under the action of the torsion spring, causing the third drive gear to rotate clockwise. When the door handle is pressed all the way down, the third drive gear rotates 120° counterclockwise. The first reset torsion spring starts to rotate clockwise under the action of the elastic potential energy stored in the torsion spring. At this time, the drive cam starts to rotate clockwise under the drive wheel and pushes the reset lever to rotate clockwise. At the same time, it drives the handle base to reset the door handle. The second reset torsion spring supports the reset lever and pushes the handle base so that the surface of the door handle is on the same plane as the door surface.

[0007] This invention achieves drive operation through a gear, ratchet, and cam structure, resulting in smooth, stable, and reliable operation.

[0008] The present invention has the following advantages: compact structure, smooth operation, and stable and reliable performance. Attached Figure Description

[0009] Figure 1 This is an assembly diagram of the present invention. Figure 2 This is a schematic diagram showing that the toothed starter bar, the double-headed drive rack, the first drive gear, the second drive gear, the third drive gear, and the drive wheel are disposed within the mounting cavity formed by the upper housing of the drive gear covering the lower housing of the drive gear in this invention. Figure 3 This is a schematic diagram showing the repositioning of the hidden door handle when the present invention is in use. Detailed Implementation

[0010] The present invention will be further illustrated below through specific embodiments. Example

[0011] A push-type concealed car door handle reset drive structure includes a door handle 1, a handle base 15, a toothed start bar 2, a drive gear upper housing 3, a drive double-ended rack 4, a first drive gear 5, a second drive gear 6, a first reset torsion spring 7, a third drive gear 8, a drive wheel 9, a drive gear lower housing 10, a one-way rotating support foot 11, a drive cam 12, a second reset torsion spring 13, and a reset rocker arm 14, as shown in the figure. The specific structure is as follows: The door handle 1 covers the handle base 15, and the upper housing 3 of the drive gear covers the lower housing 10 of the drive gear, forming a mounting cavity. The toothed starter bar 2, the double-ended drive rack 4, the first drive gear 5, the second drive gear 6, the third drive gear 8, and the drive wheel 9 are all located within the mounting cavity. The drive wheel 9 has a ratchet structure. The toothed starter bar 2 and the double-ended drive rack 4 mesh at one end. The other end of the double-ended drive rack 4, the first drive gear 5, the second drive gear 6, and the third drive gear 8 are sequentially arranged and meshed from one side of the toothed starter bar 2. The third drive gear 8 is coaxially mounted with the drive wheel 9 and connected via a spline. The first reset torsion spring 7 is sleeved on the gear shaft of the third drive gear 8. One end of the first reset torsion spring 7 is stuck in the torsion spring groove 16 on the inner side of the upper housing 3 of the drive gear, which is directly opposite to the third drive gear 8. The other end of the first reset torsion spring 7 abuts against the third drive gear 8. The drive wheel 9 and the drive cam 12 are coaxially mounted, and the drive wheel 9 is connected to the drive cam 12 through the ratchet mechanism of the drive wheel 9. One side of the drive cam 12 is provided with a one-way rotating support foot 11. The other side of the drive cam 12 is rotatably connected to one end of the reset rocker arm 14 through a pin on which the second reset torsion spring 13 is sleeved. The other end of the reset rocker arm 14 is located on the inner side of the door handle 1.

[0012] In this embodiment, the transmission ratio of the first drive gear 5, the second drive gear 6, and the third drive gear 8 is 3:2:3.

[0013] In this embodiment, when the user presses down on the door handle 1 before opening the door, the toothed starter bar 2 is also pressed down, causing the double-headed rack 4 to rotate clockwise. Simultaneously, this causes the first drive gear 5 to rotate counterclockwise, the second drive gear 6 to rotate clockwise, and the third drive gear 8 to rotate counterclockwise. Figure 2As shown: The third drive gear 8 and the drive wheel 9 are connected by a spline. The entire drive gear structure is installed in the upper housing 3 and the lower housing 10 of the drive gear. One end of the first return torsion spring 7 is stuck in the torsion spring groove 16 of the third drive gear 8 and the upper housing 3 of the drive gear. At this time, the drive wheel 9 also rotates counterclockwise. Then, the drive wheel 9 and the drive cam 12 are driven to rotate by the ratchet structure. When the drive wheel 9 rotates clockwise, the one-way rotation support 11 will hold the drive cam 12 against it to prevent it from rotating. As the third drive gear 8 rotates counterclockwise, the first return torsion spring 7 gradually accumulates elastic potential energy under the action of the torsion spring, causing the third drive gear 8 to rotate clockwise. When the door handle 1 is pressed all the way down, the third drive gear 8 rotates 120° counterclockwise. The first return torsion spring 7, under the action of the accumulated elastic potential energy, begins to rotate clockwise. At this time, the drive cam 12, driven by the drive wheel 9, begins to rotate clockwise and actuates the return lever 14 clockwise, simultaneously driving the handle base 15 to reset the door handle 1. The second return torsion spring 13 supports the return lever 14, pressing against the handle base 15 so that the surface of the door handle 1 is on the same plane as the door surface. Figure 3 As shown.

Claims

1. A push-type concealed car door handle reset drive structure, comprising a car door handle (1) and a handle base (15), wherein the car door handle (1) covers the handle base (15), characterized in that: It also includes a toothed starter bar (2), a drive gear upper housing (3), a drive double-headed rack (4), a first drive gear (5), a second drive gear (6), a first reset torsion spring (7), a third drive gear (8), a drive wheel (9), a drive gear lower housing (10), a one-way rotating support foot (11), a drive cam (12), a second reset torsion spring (13), and a reset rocker arm (14). The upper housing (3) of the drive gear covers the lower housing (10) of the drive gear and forms a mounting cavity. The toothed starter bar (2), the double-ended drive rack (4), the first drive gear (5), the second drive gear (6), the third drive gear (8), and the drive wheel (9) are all located in the mounting cavity. The drive wheel (9) is provided with a ratchet structure. The toothed starter bar (2) and the double-ended drive rack (4) are meshed at one end. The other end of the double-ended drive rack (4), the first drive gear (5), the second drive gear (6), and the third drive gear (8) are arranged sequentially from one side of the toothed starter bar (2) and mesh sequentially. The third drive gear (8) is coaxially mounted with the drive wheel (9) and connected by a spline. The first return torsion spring (7) is also present. One end of the first reset torsion spring (7) sleeved on the gear shaft of the third drive gear (8) is stuck in the torsion spring groove (16) on the inner side of the upper housing (3) of the drive gear, which is directly opposite to the third drive gear (8). The other end of the first reset torsion spring (7) abuts against the third drive gear (8). The drive wheel (9) and the drive cam (12) are coaxially mounted, and the drive wheel (9) is connected to the drive cam (12) through the ratchet mechanism of the drive wheel (9). One side of the drive cam (12) is provided with a one-way rotating support foot (11). The other side of the drive cam (12) is rotatably connected to one end of the reset swing rod (14) through a pin with a second reset torsion spring (13) sleeved on it. The other end of the reset swing rod (14) is located on the inner side of the door handle (1).

2. The push-type concealed door handle reset drive structure as described in claim 1, characterized in that: The transmission ratio of the first drive gear (5), the second drive gear (6), and the third drive gear (8) is 3:2:

3.

3. The method of using the push-type concealed door handle reset drive structure as described in claim 1 or 2, characterized in that: Follow these steps in sequence: When the user presses down the door handle (1) before opening the door, the toothed start bar (2) is also pressed down and drives the double-headed rack (4) to rotate clockwise. At the same time, the first drive gear (5) rotates counterclockwise, the second drive gear (6) rotates clockwise, and the third drive gear (8) rotates counterclockwise. The third drive gear (8) and the drive wheel (9) are connected by a spline so that the entire drive gear structure is installed in the upper housing (3) and the lower housing (10) of the drive gear. Since one end of the first reset torsion spring (7) is stuck in the torsion spring groove (16) of the third drive gear (8) and the upper housing (3) of the drive gear, the drive wheel (9) also rotates counterclockwise. Then, the drive wheel (9) and the drive cam (12) are driven to rotate by the ratchet structure. When the drive wheel (9) rotates clockwise, the one-way rotating support foot (11) will hold the drive cam (12) in place to prevent the drive cam (12) from rotating. When the third drive gear (8) rotates counterclockwise, the first reset torsion spring (7) gradually accumulates elastic potential energy under the action of the torsion spring, driving the third drive gear (8) to rotate clockwise. When the door handle (1) is pressed to the bottom, the third drive gear (8) rotates 120° counterclockwise. The first reset torsion spring (7) starts to rotate clockwise under the action of the elastic potential energy stored in the torsion spring. At this time, the drive cam (12) starts to rotate clockwise under the drive wheel (9) and pushes the reset lever (14) to rotate clockwise. At the same time, it drives the handle base (15) to reset the door handle (1). The second reset torsion spring (13) supports the reset lever (14) and pushes against the handle base (15) so that the surface of the door handle (1) is on the same plane as the door surface.

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