CN218862395U

CN218862395U - Automatic door opening and closing mechanism

Info

Publication number: CN218862395U
Application number: CN202222376184.4U
Authority: CN
Inventors: 田景富
Original assignee: Chongqing Kaian Electromechanical Manufacture Co ltd
Current assignee: Chongqing Kaian Electromechanical Manufacture Co ltd
Priority date: 2022-04-11
Filing date: 2022-09-07
Publication date: 2023-04-14
Anticipated expiration: 2032-09-07

Abstract

The utility model provides an automatic door opening and closing mechanism, including drive structure (1), regulation structure (9), guide structure (20) and conversion arm (12), it is connected with drive structure (1) to adjust structure (9) for the motion form transform of drive structure (1) output is linear motion, guide structure (20) are used for adjusting the direction of structure (9), conversion arm (12) one end is connected with the output shaft rotation of adjusting structure (9), and the other end rotates with mounting (5) to be connected. The utility model discloses an automatically-controlled door closing mechanism has effectually prevented that traditional push rod from having the swing in the door to and the great problem of door via hole brought by the swing, and solved the problem that automatically-controlled door closing mechanism is subject to the restriction of door inner space.

Description

Automatic door opening and closing mechanism

Technical Field

The utility model relates to an automobile door, in particular to automatic door opening and closing mechanism of automobile door.

Background

The automobile door is an important component of various automobiles, and the automobile door can be divided into the following types according to the opening mode: even when the automobile runs, the automobile can still be closed by the pressure of the airflow, so that the automobile is safe, and the automobile is convenient for a driver to observe backwards when backing the automobile, so that the automobile is widely adopted. Reverse open type door: when the automobile is in running, if the automobile is not closed tightly, the automobile can be flushed away by the head-on airflow, so that the automobile is used less frequently only under the conditions of improving the convenience of getting on and off the automobile and being suitable for meeting requirements of guest courtesy. Horizontal migration formula door: its advantage is that the car body can be opened completely when the distance between side wall and barrier is small. Lift formula door on: it is widely used as the back door of cars and light buses, and also applied to low cars. Folding car door: the method is widely applied to large and medium-sized passenger cars. However, the door can be classified into a manually opened and closed door and an automatically opened and closed door depending on the source of the driving force for opening and closing the door.

The automatic door opening and closing mechanism of the automobile for automatically opening and closing the automobile door pushes/pulls the automobile door to rotate around the hinge and hover at a specified angle position, so that the automobile door can be opened and closed for a driver to get in and out, and the push rod in the existing automatic door opening and closing mechanism swings in the automobile door, so that the automobile door has a larger through hole and is limited by the space limitation in the automobile door.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an automatic door opening and closing mechanism to solve the problems of the swing of the push rod and the oversize of the door opening caused by the swing;

in order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an automatic door opening and closing mechanism, including drive structure, regulation structure, guide structure and conversion arm, it is connected with drive structure to adjust the structure for the motion form transform that will drive the structure output is linear motion, guide structure is used for adjusting the direction of structure, conversion arm one end is connected with the output shaft rotation of adjusting the structure, and the other end rotates with the mounting to be connected.

Preferably, the guide structure comprises a guide wheel and a guide pipe, the guide pipe is sleeved on the output shaft of the adjusting structure, and the guide wheel is sleeved on the output shaft of the adjusting structure and is positioned in the guide pipe.

Preferably, the adjusting structure comprises a worm, a worm gear nut and a screw rod, the worm is connected with an output shaft of the driving structure, the worm is meshed with the worm gear nut, and the screw rod is movably connected with the inner side of the worm gear nut through threads.

Preferably, the head of the screw rod is provided with a screw rod joint, the screw rod joint is rotatably connected with one end of the conversion arm, and the other end of the conversion arm is rotatably connected with the fixing piece.

Preferably, the guide wheel is sleeved at the tail end of the screw rod and is in interference fit with the guide pipe.

Preferably, the guide wheel is coated with rubber.

Preferably, the automatic door opening and closing mechanism further includes a housing, the adjustment structure is hinged to a main body of the vehicle by a conversion arm and a fixing member, and the adjustment structure is relatively fixed to a moving part of the vehicle by means of the housing.

Preferably, a cover is provided between the conduit and the housing.

Preferably, the worm and the worm wheel nut are connected to the housing through a bearing.

Preferably, the driving structure further comprises a motor control unit, and the driving mechanism is driven by a motor.

Preferably, the adjusting structure comprises a bevel gear, a bevel gear nut and a screw rod, the bevel gear is connected with an output shaft of the driving structure, the bevel gear is meshed with the bevel gear nut, and the screw rod is movably connected with the inner side of the bevel gear nut through threads.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a degree of freedom of motion that conversion arm provided has effectually prevented that traditional push rod from having the swing in the door to and the great problem of door via hole brought by the swing has been prevented, and solved the problem that automatic door opening and closing mechanism is subject to the restriction of door inner space. The guide device at the tail part of the automatic door opening and closing mechanism limits the gap between the screw rod and the worm gear nut when the screw rod is subjected to radial force, so that the problem of screw rod swing is solved.

Drawings

Fig. 1 is an overall schematic view of the automatic door opening/closing mechanism of the present invention.

Fig. 2 is a schematic view of the internal structure of the automatic door opening/closing mechanism of the present invention.

Fig. 3 is a schematic view of the connection between the automatic door opening/closing mechanism and the vehicle door body of the present invention.

Fig. 4 is a longitudinal sectional view of the opening and closing mechanism of the automatic door shown in fig. 1.

Fig. 5 is a cross-sectional view of the opening and closing mechanism of the automatic door shown in fig. 1.

Fig. 6 is a schematic diagram of the internal structure of another embodiment of the present invention.

Description of reference numerals: 1-drive structure, 2-cover, 3-guide tube, 4-housing, 40-automatic door opening and closing mechanism, 5-fixing piece, 50-vehicle, 51-main body, 52-moving part of vehicle, 6-worm, 7-worm gear nut, 8-lead screw, 9-adjusting structure, 10-bearing, 11-lead screw joint, 12-conversion arm, 13-bevel gear, 14-motor shaft, 15-guide wheel, 16-bevel gear nut, 20-guide structure, 30-motor control unit.

Detailed Description

As shown in fig. 1 to 5, the automatic door opening and closing mechanism 40 of the present invention includes a driving mechanism 1, an adjusting mechanism 9, a guiding mechanism 20 and a conversion arm 12, wherein the adjusting mechanism 9 is used for converting the motion form output by the driving mechanism 1 into a linear motion, and the guiding mechanism 20 is used for guiding the adjusting mechanism 9. In this embodiment, the driving mechanism 1 includes a motor control unit 30, a motor and an output shaft of the motor, i.e. a motor shaft 14, and the driving mechanism 1 is powered by the motor. The adjusting structure 9 comprises a worm 6, a worm gear nut 7 and a screw rod 8. The motor can be connected with a motor shaft 14 through a speed reducer, the motor shaft 14 is connected with the worm 6, the worm 6 is meshed with the worm wheel nut 7, and the lead screw 8 is movably connected with the inner side of the worm wheel nut 7 through threads, so that the lead screw 8 can linearly move left and right in the worm wheel nut 7. By means of the above-described adjusting mechanism 9, the rotary movement of the drive mechanism 1 is thus converted into a linear movement of the spindle 8 in its longitudinal extension a. The head of the screw 8 is provided with a screw joint 11, the screw joint 11 is rotatably connected with one end of a conversion arm 12, the other end of the conversion arm 12 is rotatably connected with a fixing member 5, and the fixing member 5 is used for fixedly connecting with a main body 51 of the vehicle 50, such as a vehicle body. The adjustment structure 9 is articulated to the body 51 of the vehicle 50 by means of the transformation arm 12 and the fixing piece 5, and the adjustment structure 9 is fixed relative to a moving part 52 of the vehicle, for example a door, by means of the housing 4. The housing 4 serves to protect the output shaft 14 of the drive arrangement 1 and the transmission elements of the adjusting arrangement 9, i.e. the worm 6 and the worm-wheel nut 7. The worm 6 and the worm wheel nut 7 are connected to the housing 4 through the bearing 10, and the housing 4 is fixedly connected to the moving member 52 of the vehicle. Since the worm 6 and the worm-wheel nut 7 of the adjusting mechanism 9 can be rotated relative to the housing 4, but their relative positions do not change, the adjusting mechanism 9 is fixed relative to the moving part 52 of the vehicle by means of the housing 4.

The guide structure 20 comprises a guide wheel 15 and a guide pipe 3, the guide pipe 3 is sleeved on the screw rod 8 in an empty mode, the guide wheel 15 is fixed at the tail of the screw rod 8, namely one end far away from the screw rod joint 11 and is positioned in the guide pipe 3, and when an output shaft of the adjusting structure 9 moves linearly, the guide wheel 15 slides in the guide pipe 3. The guide wheel 15 is in interference fit with the catheter 3. In order to prevent abnormal noise caused by friction and collision between the guide wheel 15 and the guide pipe 3, the guide wheel 15 is coated with rubber.

In order to protect the spindle 8, a cover 2 is also provided between the guide tube 3 and the housing 4. The cover 2 and the guide tube 3 can be arranged in one piece and together with the guide wheel 15 ensure that the spindle 8 cannot swing due to the play between the spindle 8 and the worm-wheel nut 7. The guide structure 20 located at the rear of the automatic door opening and closing mechanism 40 limits the play between the screw 8 and the worm wheel nut 7 when the screw 8 is subjected to a radial force, which causes a problem of the screw 8 swinging.

It should be added that the adjusting mechanism 9 is not limited to the worm 6 and the worm wheel nut 7 in fig. 2 in the specific implementation process, but may also be a bevel gear adjusting mechanism as in fig. 4 or other adjusting mechanisms. The bevel gear adjusting structure comprises a bevel gear 13, a bevel gear nut 16 and a screw rod 8, wherein the bevel gear 13 is connected with an output shaft of the driving structure, the bevel gear 13 is meshed with the bevel gear nut 16, and the inner sides of the screw rod 8 and the bevel gear nut 16 are movably connected through threads.

As shown in fig. 6, the adjusting structure 9 of the present invention is relatively fixed to a moving part 52 of the vehicle, such as a door, through the housing 4, and the fixing member 5 is fixed to a main body 51 of the vehicle 50, such as a vehicle body. In other embodiments, the reverse may be true.

The freedom of movement provided by the conversion arm 12, i.e. its torsionability with respect to the axes C and B, the torsionability of the fixing element 5 with respect to the axis B and the axial movability of the screw 8 with respect to the drive device 1 with respect to the axis a, reliably prevents the automatic door opening and closing mechanism 40 from producing dead spots when the moving part 52 of the vehicle moves with respect to the body 51 of the vehicle 50. The degree of freedom of movement provided by the conversion arm 12 effectively prevents the conventional push rod from swinging in the vehicle door, and prevents the problem of a large vehicle door through hole caused by swinging, and solves the problem that the automatic door opening and closing mechanism is limited by the space limitation in the vehicle door.

Claims

1. Automatic door opening and closing mechanism, its characterized in that: including drive structure (1), regulation structure (9), guide structure (20) and conversion arm (12), it is connected with drive structure (1) to adjust structure (9) for with the motion form transform of drive structure (1) output linear motion, guide structure (20) are used for adjusting the direction of structure (9), conversion arm (12) one end is connected with the output shaft rotation of adjusting structure (9), and the other end rotates with mounting (5) and is connected.

2. The automatic door opening and closing mechanism according to claim 1, wherein: the guide structure (20) comprises a guide wheel (15) and a guide pipe (3), the guide pipe (3) is sleeved on an output shaft of the adjusting structure (9) in an empty mode, the guide wheel (15) is fixed on the output shaft of the adjusting structure (9) and located in the guide pipe (3), and when the output shaft of the adjusting structure (9) moves linearly, the guide wheel (15) slides in the guide pipe (3).

3. The automatic door opening and closing mechanism according to claim 2, wherein: the adjusting structure (9) comprises a worm (6), a worm gear nut (7) and a screw rod (8), the worm (6) is connected with an output shaft of the driving structure (1), the worm (6) is meshed with the worm gear nut (7), and the screw rod (8) is movably connected with the inner side of the worm gear nut (7) through threads.

4. The automatic door opening and closing mechanism of claim 3, wherein: the head of the screw rod (8) is provided with a screw rod joint (11), the screw rod joint (11) is rotatably connected with one end of a conversion arm (12), and the other end of the conversion arm (12) is rotatably connected with the fixing piece (5).

5. The automatic door opening and closing mechanism of claim 3, wherein: the guide wheel (15) is sleeved at the tail end of the screw rod (8) and is in interference fit with the guide pipe (3).

6. The automatic door opening and closing mechanism according to claim 5, wherein: the guide wheel (15) is coated with rubber.

7. The automatic door opening and closing mechanism according to claim 6, wherein: the automatic door opening and closing mechanism further comprises a housing (4), the adjusting structure (9) is hinged to a main body (51) of the vehicle (50) through a conversion arm (12) and a fixing piece (5), and the adjusting structure (9) is relatively fixed on a moving part (52) of the vehicle by means of the housing (4).

8. The automatic door opening and closing mechanism of claim 7, wherein: a sealing cover (2) is arranged between the conduit (3) and the shell (4).

9. The automatic door opening and closing mechanism according to claim 8, wherein: the worm (6) and the worm gear nut (7) are connected to the shell (4) through a bearing (10).

10. The automatic door opening and closing mechanism according to claim 9, wherein: the drive structure (1) further comprises a motor control unit (30), and the drive structure (1) is driven by a motor.

11. The automatic door opening and closing mechanism of claim 2, wherein: the adjusting structure (9) comprises a bevel gear (13), a bevel gear nut (16) and a screw rod (8), the bevel gear (13) is connected with an output shaft of the driving structure (1), the bevel gear (13) is meshed with the bevel gear nut (16), and the screw rod (8) is movably connected with the inner side of the bevel gear nut (16) through threads.