Driving device and hidden door handle

Abstract

The utility model provides a driving device and a hidden door handle, and belongs to the technical field of door handles. The hidden type door handle solves the problems that an existing hidden type door handle is driven by a motor to stretch, retract and horizontally move back and forth, when the handle of a user is placed in the door handle, if the handle is retracted into a door plate through misoperation of the motor, the hand of the user is pinched, and certain potential safety hazards exist. The motor is in transmission connection with the lead screw and used for driving the lead screw to rotate, so that the nut arranged on the lead screw in a sleeving mode can move back and forth relative to the lead screw in the axial direction of the lead screw, the moving direction of the nut is consistent with the moving direction of the door handle, and the motor rotates reversely to drive the nut to move back and forth in the door plate. A reset spring is further arranged in the door plate, and the reset spring is used for pushing the door handle to horizontally move in the direction of returning to the interior of the door plate. The door handle has the advantages that even if the hand of a user is still located in the door handle, the hand cannot be pinched by the elastic force of the spring, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of door handles and relates to a driving device and a hidden door handle. Background Art

[0002] At present, there are some hidden door handles on the market. When these door handles are not in use, they are hidden inside the door panel. When the user unlocks the door by fingerprint outside the door, the door handle will automatically extend out of the door panel. These door handles have the characteristics of beautiful appearance and strong sense of technology, and are deeply loved by people.

[0003] However, such hidden door handles have a drawback. In the way of driving the door handle to move back and forth and translate by a motor, when the user puts his hand inside the door handle, if the motor malfunctions and retracts the handle into the door panel, the user's hand will be pinched, which has a certain potential safety hazard. Summary of the Utility Model

[0004] The first object of the utility model is to propose a driving device with a simple structure in view of the above problems existing in the existing hidden door handles.

[0005] The first object of the utility model can be achieved by the following technical solutions:

[0006] A driving device is arranged inside the door panel for driving the door handle to translate. It includes a motor, a lead screw, and a nut. The motor is in transmission connection with the lead screw to drive the lead screw to rotate, so that the nut sleeved on the lead screw can translate back and forth along its axial direction relative to the lead screw, and the moving direction of the nut is the same as the moving direction of the door handle;

[0007] It is characterized in that when the motor rotates forward, it drives the nut to translate in the direction of extending out of the door panel. When the nut moves to abut against the door handle and pushes the door handle to translate outward synchronously; when the motor rotates reversely, it drives the nut to translate in the direction of retracting into the door panel. When the nut moves in the reverse direction, it separates from the door handle. A return spring is also arranged inside the door panel, and this return spring is used to push the door handle to translate in the direction of retracting into the door panel.

[0008] In the above-mentioned driving device, the driving device further includes a front plate and a rear plate, and the front plate and the rear plate are arranged in parallel at intervals in sequence along the direction in which the door handle retracts into the door panel.

[0009] In the above-mentioned driving device, both ends of the lead screw are respectively rotatably arranged on the front plate and the rear plate, and the motor is fixedly arranged on the front plate.

[0010] In the above-mentioned driving device, a transmission component is arranged between the motor and the lead screw, and the motor drives the lead screw to rotate through this transmission component; the transmission component includes a first transmission gear fixedly connected to the output shaft of the motor and a second transmission gear fixedly connected to the lead screw, and the first transmission gear and the second transmission gear are meshed with each other for transmission.

[0011] The second object of the present utility model is to provide a concealed door handle with the above-mentioned driving device in view of the above problems existing in the existing concealed door handle.

[0012] The second object of the present utility model can be achieved by the following technical solutions:

[0013] A concealed door handle, characterized in that it includes a door handle and a box body, the box body is fixedly embedded in the door panel, and the driving device and the door handle are arranged on the box body.

[0014] In the above-mentioned concealed door handle, the front plate is fixedly connected to the box body.

[0015] In the above-mentioned concealed door handle, a guiding component is arranged between the door handle and the box body for restricting the moving direction of the door handle.

[0016] In the above-mentioned concealed door handle, the guiding component generally includes a guide rail fixedly arranged on the door handle and a slider fixedly arranged on the box body, and the door handle is slidably arranged on the slider of the box body through the guide rail.

[0017] In the above-mentioned concealed door handle, there are generally two sets of the guiding components, one on the upper side and the other on the lower side.

[0018] In the above-mentioned concealed door handle, a transmission plate is fixedly arranged on the inner side of the door handle, and the transmission plate is located between the front plate and the rear plate.

[0019] In the above-mentioned concealed door handle, a plurality of guide rods are arranged between the front plate and the rear plate, and a return spring is sleeved on each guide rod. A plurality of guide holes corresponding to the positions of the respective guide rods are formed on the transmission plate. One end of the return spring presses against the front plate, and the other end presses against the transmission plate for pushing the transmission plate to translate in the direction close to the rear plate.

[0020] In the above-mentioned concealed door handle, a backing plate is fixedly arranged on the transmission plate. A through hole corresponding to the position of the lead screw is formed on the backing plate. An avoidance groove is formed on the transmission plate, and when the nut translates, it passes through the avoidance groove and abuts against the backing plate.

[0021] In the above-mentioned concealed door handle, an avoidance hole corresponding to the position of the motor is also formed on the transmission plate.

[0022] Compared with the prior art, after the lock of the present utility model is opened, the motor drives the lead screw to rotate, and the nut moves to abut against the transmission plate and pushes the transmission plate to translate in the direction of extending out of the door panel, so that the door handle extends out of the door panel; when the motor drives the nut to move in place, the motor reverses and drives the nut to move back in the reverse direction to return to its original position. At this time, the nut is separated from the transmission plate, and the door handle is pushed back into the door panel by the return spring. Even if the user's hand is still inside the door handle at this time, the elastic force of the spring will not pinch the hand, eliminating potential safety hazards. Brief Description of the Drawings

[0023] Figure 1 is an overall structural schematic diagram of the hidden door handle of the present utility model;

[0024] Figure 2 is an exploded view of the door handle and the box body of the present utility model;

[0025] Figure 3 is an overall structural schematic diagram of the driving device of the present utility model;

[0026] Figure 4 is a structural schematic diagram of the driving device and the transmission plate of the present utility model;

[0027] Figure 5 is an overall structural schematic diagram of the guiding component of the present utility model;

[0028] Figure 6 is an enlarged schematic diagram of the position of the guide rail inside the door handle of the present utility model;

[0029] Figure 7 is an enlarged schematic diagram of the position of the slider inside the box body of the present utility model.

[0030] In the figures, 1, door handle; 2, motor; 3, lead screw; 4, nut; 5, return spring; 6, rear plate; 7, front plate; 8, first transmission gear; 9, second transmission gear; 10, box body; 11, guide rail; 12, slider; 13, transmission plate; 14, guide rod; 15, backing plate. Detailed Description of the Preferred Embodiments

[0031] The following are specific embodiments of the present utility model in conjunction with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0032] As Figure 3 and Figure 4 shown, a driving device of the present utility model is provided inside the door panel for driving the door handle 1 to translate. It includes a motor 2, a lead screw 3, and a nut 4. The motor 2 is in transmission connection with the lead screw 3 for driving the lead screw 3 to rotate, so that the nut 4 sleeved on the lead screw 3 can translate back and forth along its axial direction relative to the lead screw 3, and the moving direction of the nut 4 is the same as the moving direction of the door handle 1.

[0033] When the motor 2 rotates forward, it drives the nut 4 to translate in the direction of extending out of the door panel. The nut 4 moves to abut against the door handle 1 and pushes the door handle 1 to translate outward synchronously. When the motor 2 rotates reversely, it drives the nut 4 to translate in the direction of retracting into the door panel. When the nut 4 moves in the reverse direction, it separates from the door handle 1. A return spring 5 is further provided inside the door panel, and the return spring 5 is used to push the door handle 1 to translate in the direction of retracting into the door panel.

[0034] The driving device further includes a front plate 7 and a rear plate 6, and the front plate 7 and the rear plate 6 are arranged in parallel at intervals in sequence along the direction in which the door handle 1 retracts into the door panel. Both ends of the lead screw 3 are rotatably arranged on the front plate 7 and the rear plate 6 respectively, and the motor 2 is fixedly arranged on the front plate 7. A transmission component is provided between the motor 2 and the lead screw 3, and the motor 2 drives the lead screw 3 to rotate through the transmission component. The transmission component includes a first transmission gear 8 fixedly connected to the output shaft of the motor 2 and a second transmission gear 9 fixedly connected to the lead screw 3, and the first transmission gear 8 and the second transmission gear 9 are meshed and transmitted with each other.

[0035] As Figure 1 and Figure 2 shown, a concealed door handle 1 of the present utility model is characterized in that it includes a door handle 1 and a box body 10. The box body 10 is fixedly embedded in the door panel, and the driving device and the door handle 1 are arranged on the box body 10. The front plate 7 is fixedly connected to the box body 10.

[0036] As Figures 5 to 7 shown, a guiding component is provided between the door handle 1 and the box body 10 for restricting the moving direction of the door handle 1. The guiding component altogether includes a guide rail 11 fixedly arranged on the door handle 1 and a slider 12 fixedly arranged on the box body 10, and the door handle 1 is slidably arranged on the slider 12 of the box body 10 through the guide rail 11. There are two groups of the guiding components, which are upper and lower.

[0037] As Figure 4 shown, a transmission plate 13 is fixedly arranged on the inner side of the door handle 1, and the transmission plate 13 is located between the front plate 7 and the rear plate 6. A plurality of guide rods 14 are arranged between the front plate 7 and the rear plate 6, and a return spring 5 is sleeved on each guide rod 14. A plurality of guide holes corresponding to the positions of the respective guide rods 14 are formed on the transmission plate 13. One end of the return spring 5 abuts tightly against the front plate 7, and the other end abuts tightly against the transmission plate 13 for pushing the transmission plate 13 to translate in the direction close to the rear plate 6.

[0038] A backing plate 15 is fixedly arranged on the transmission plate 13. A through hole corresponding to the position of the lead screw 3 is formed in the backing plate 15. An avoidance groove is formed in the transmission plate 13. When the nut 4 translates, it passes through the avoidance groove and abuts against the backing plate 15. An avoidance hole corresponding to the position of the motor 2 is also formed in the transmission plate 13. The guide hole, through hole, avoidance groove and avoidance hole formed in the transmission plate 13 are for enabling the transmission plate 13 to move and translate integrally relative to the driving device. When the nut 4 retracts to its original position, the moving direction of the transmission plate 13 can be unrestricted, and only the return spring 5 can be used to push the transmission plate 13 to translate.

[0039] It should be understood that in the claims and the description of the present invention, all "comprising..." should be understood in an open sense, that is, its meaning is equivalent to "at least containing...", rather than in a closed sense, that is, its meaning should not be understood as "only containing...".

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A driving device, arranged in a door panel and used for driving a door handle (1) to move in translation, comprising a motor (2), a screw rod (3) and a nut (4), wherein the motor (2) is transmission-connected to the screw rod (3) and used for driving the screw rod (3) to rotate, so that a nut (4) sleeved on the screw rod (3) can move back and forth in translation relative to the screw rod (3) along its axial direction, and the moving direction of the nut (4) is consistent with the moving direction of the door handle (1); It is characterized in that The forward rotation of the motor (2) drives the nut (4) to translate in the direction of extending out of the door panel, and the nut (4) moves until it contacts the door handle (1) and pushes the door handle (1) to translate outward synchronously; the reverse rotation of the motor (2) drives the nut (4) to translate in the direction of returning to the door panel, and the nut (4) separates from the door handle (1) when it moves in the reverse direction. A return spring (5) is also provided in the door panel, and the return spring (5) is used to push the door handle (1) to translate in the direction of returning to the door panel.

2. A driving device according to claim 1, characterized in that: The driving device also includes a front plate (7) and a rear plate (6), and the front plate (7) and the rear plate (6) are arranged in parallel and spaced apart in the direction in which the door handle (1) is retracted into the door panel; the two ends of the screw rod (3) are rotatably arranged on the front plate (7) and the rear plate (6), respectively, and the motor (2) is fixed on the front plate (7).

3. A driving device according to claim 1, characterized in that: A transmission assembly is provided between the motor (2) and the screw rod (3), and the motor (2) drives the screw rod (3) to rotate through the transmission assembly; the transmission assembly comprises a transmission gear 1 (8) fixedly connected to the output shaft of the motor (2), and a transmission gear 2 (9) fixedly connected to the screw rod (3), and the transmission gear 1 (8) and the transmission gear 2 (9) are meshed with each other for transmission.

4. A hidden door handle (1), characterized in that: It comprises a door handle (1) and a box body (10), wherein the box body (10) is fixedly embedded in a door panel, and the driving device and the door handle (1) described in any one of claims 1 to 3 are arranged on the box body (10).

5. A hidden door handle (1) according to claim 4, characterized in that: The front plate (7) is fixedly connected to the box body (10).

6. A hidden door handle (1) according to claim 4, characterized in that: A guide assembly is provided between the door handle (1) and the box body (10) for limiting the moving direction of the door handle (1); the guide assembly comprises a guide rail (11) fixed on the door handle (1) and a slider (12) fixed on the box body (10); the door handle (1) is slidably arranged on the slider (12) of the box body (10) via the guide rail (11); the guide assembly comprises two upper and lower groups.

7. A hidden door handle (1) according to claim 4, characterized in that: A transmission plate (13) is fixedly arranged on the inner side of the door handle (1), and the transmission plate (13) is located between the front plate (7) and the rear plate (6).

8. A hidden door handle (1) according to claim 7, characterized in that: A plurality of guide rods (14) are arranged between the front plate (7) and the rear plate (6), each guide rod (14) is sleeved with a return spring (5), a plurality of guide holes corresponding to the positions of the guide rods (14) are opened on the transmission plate (13), one end of the return spring (5) is pressed against the front plate (7), and the other end is pressed against the transmission plate (13) to push the transmission plate (13) to translate in a direction close to the rear plate (6).

9. A hidden door handle (1) according to claim 7, characterized in that: A support plate (15) is fixedly arranged on the transmission plate (13), a through hole corresponding to the position of the screw rod (3) is provided on the support plate (15), and an avoidance groove is provided on the transmission plate (13), and the nut (4) passes through the avoidance groove and abuts against the support plate (15) when translating.

10. A hidden door handle (1) according to claim 7, characterized in that: The transmission plate (13) is also provided with an avoidance hole corresponding to the position of the motor (2).

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