CN213573553U

CN213573553U - Compact automobile door driving mechanism

Info

Publication number: CN213573553U
Application number: CN202021713133.0U
Authority: CN
Inventors: 潘忠利
Original assignee: Wuxi Krapelong Automotive Technology Co ltd
Current assignee: Wuxi Krapelong Automotive Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-06-29
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a small and exquisite automobile door driving mechanism, which comprises a power unit arranged in an automobile door and used for providing power and an execution unit connected with an automobile body, wherein the execution unit is provided with a screw rod and a screw nut sleeved on the screw rod, one shaft end of the screw rod is freely arranged in the automobile door, and the other shaft end of the screw rod movably penetrates out of the automobile door and is rotationally connected with the automobile body; the power unit is provided with a motor, a worm which is connected with a power output shaft of the motor in a positioning mode, and a worm wheel which is connected with the worm in a meshed mode, and the worm wheel is sleeved outside the screw rod nut and can drive the screw rod nut to rotate. The automobile door driving mechanism is small in structure, light in weight and convenient to install; and effectively reduce the working noise and improve the use satisfaction of consumers.

Description

Compact automobile door driving mechanism

Technical Field

The utility model relates to a car door actuating mechanism technical field specifically provides a small and exquisite type car door actuating mechanism.

Background

Automobile doors in the current market can be electrically opened and closed, and the automobile door control system has the characteristics of high operation intelligent degree, high safety and the like.

However, the conventional electric driving mechanism for the automobile door has the following defects in the application process: firstly, the vehicle door driving mechanism occupies a larger installation space, so that the installation of other devices is not facilitated; secondly, the sound of the vehicle door driving mechanism is obvious when the vehicle door driving mechanism works, so that the satisfaction degree of consumers is low.

In view of this, the present invention is especially provided.

Disclosure of Invention

In order to overcome the defects, the utility model provides a small and exquisite automobile door driving mechanism which has a small structure, light weight and convenient installation; and effectively reduce the working noise and improve the use satisfaction of consumers.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: a small and exquisite automobile door driving mechanism comprises a power unit arranged in an automobile door and used for providing power, and an execution unit connected with an automobile body, wherein the execution unit is provided with a screw rod and a screw nut sleeved on the screw rod in a threaded manner, one shaft end of the screw rod is freely arranged in the automobile door, and the other shaft end of the screw rod movably penetrates out of the automobile door and is rotationally connected with the automobile body; the power unit is provided with a motor, a worm fixedly connected with a power output shaft of the motor and a worm wheel meshed with the worm, and the worm wheel is sleeved outside the screw rod nut and can drive the screw rod nut to rotate.

As a further improvement of the present invention, the screw nut has a nut body in the shape of a spherical ring, an internal thread matching with the screw is formed on the inner surface of the nut body, and two slots extending along the spherical surface meridian of the nut body are symmetrically arranged on the outer surface of the nut body;

the structure that the worm gear is sleeved outside the screw rod nut and can drive the screw rod nut to rotate is as follows: the nut is provided with a linkage piece, the linkage piece is provided with two semi-cylinders which can be butted to form a cylindrical sleeve cylinder structure, two clamping columns are oppositely formed on the inner surfaces of the two semi-cylinders, and when the two semi-cylinders are sleeved outside the nut main body, the two clamping columns are correspondingly clamped in the two clamping grooves respectively; in addition, the worm wheel is sleeved outside the linkage piece in a tight fit manner and can drive the linkage piece to rotate, so that the lead screw nut is driven to rotate.

As a further improvement of the present invention, two the clip posts are formed at two positions at the middle of the inner surface of the semi-cylinder body.

As a further improvement of the utility model, the worm wheel and the linkage piece between which a friction elastic sheet is sleeved are arranged.

As a further improvement of the utility model, the screw rod is arranged along the transverse direction, and a metal protection block is riveted on one shaft end of the screw rod;

the inner surfaces of two shaft ends of each semi-cylinder are inclined surfaces formed by extending in an outward inclined mode, when the two semi-cylinders are in butt joint, the two inclined surfaces located on the same shaft side are in butt joint to form an inclined ring surface, and the inclined ring surface facing to one shaft end of the screw rod can also limit the metal protection block in a stopping mode.

As the utility model discloses a further improvement, motor location is installed on car door inner wall, and concrete implementation structure is: the motor mounting structure is characterized in that a mounting plate seat for mounting the motor is arranged, the mounting plate seat is of an integrated symmetrical structure, and the mounting plate seat is detachably positioned and mounted on the inner wall of the automobile door.

As a further improvement of the utility model, a supply is provided with between two parties on the mounting plate seat the perforation that another axle head activity of lead screw was worn out, and still install a rubber sealing plug in the perforation.

As a further improvement, the utility model is also provided with a housing, and the housing positioning cover is arranged outside the local part of the screw rod.

The utility model has the advantages that: 1) compared with the prior art, the utility model adopts the combination of the motor, the worm wheel and the screw nut to transmit power and drive the screw to move, thereby simplifying the overall structure of the automobile door driving mechanism, and leading the automobile door driving mechanism to have small and exquisite structure, light weight and convenient installation; the noise of the automobile door driving mechanism during working is effectively reduced, and the use satisfaction of consumers is improved. 2) The utility model discloses a will the nut main part designs into the ball annularly, is similar to the universal joint structure promptly, can be so that the relative car door of lead screw swings a little, just can not appear the card at the in-process of opening the door like this and die, hold back bad situation such as death, do benefit to the switch door operation. 3) The utility model discloses a it has a metal protection piece to rivet on the lead screw one end, and it can be right to be formed with on the linkage the metal protection piece carries out the spacing slope anchor ring of backstop, can effectively prevent to warp the damage phenomenon because of door or panel beating that artificial violence outwards pushed the door and caused, plays fine door and crosses the guard action of opening. 4) The utility model discloses will supply mounting plate seat optimal design that the motor installation was used is symmetrical formula structure as an organic whole, flexibility and convenience when can promoting the installation motor greatly like this, and then makes the better adaptation of this car door actuating mechanism in the door inner space of different motorcycle types.

Drawings

Fig. 1 is a schematic perspective view of the vehicle door driving mechanism of the present invention at a first viewing angle;

FIG. 2 is a schematic view of a partial structure of the driving mechanism of the vehicle door according to the present invention;

fig. 3 is a schematic view of a three-dimensional structure of the automobile door driving mechanism of the present invention at a second viewing angle;

FIG. 4 is a schematic view of the cross-sectional structure A-A shown in FIG. 3;

FIG. 5 is an enlarged view of the portion D shown in FIG. 4;

FIG. 6 is a schematic view of an assembly structure of the lead screw, the lead screw nut, the link and the worm wheel shown in FIG. 4 when assembled together;

fig. 7 is a schematic view of the cross-sectional structure B-B shown in fig. 3.

The following description is made with reference to the accompanying drawings:

10, a motor; 11-a worm; 12-a worm gear; 20-a screw rod; 21-a feed screw nut; 210 — a nut body; 211-card slot; 22-a linkage; 220-half column; 221-clamping column; 222 — inclined plane; 23-a metal protection block; 3, mounting a plate seat; 30, punching; 4-rubber sealing plug; and 5, covering the shell.

Detailed Description

Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relation or adjustment of the size should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention.

Example 1:

referring to fig. 1-5 and fig. 7, the compact car door driving mechanism of the present invention includes a power unit disposed in a car door for providing power, and an execution unit connected to a car body, particularly, the execution unit has a screw rod 20 and a screw nut 21 sleeved on the screw rod 20, one shaft end of the screw rod 20 is freely disposed in the car door, and the other shaft end of the screw rod 20 movably penetrates through the car door and is rotatably connected to the car body; the power unit is provided with a motor 10, a worm 11 connected with a power output shaft of the motor 10 in a positioning mode, and a worm wheel 12 connected with the worm 11 in a meshed mode, and the worm wheel 12 is sleeved outside the screw rod nut 21 and can drive the screw rod nut 21 to rotate. Namely: the power output by the motor 10 is transmitted by the worm 11, the worm wheel 12 and the screw nut 21 in sequence, and then drives the screw 20 to perform reciprocating movement positioning along the self axial direction, so that the door opening or closing action of the automobile door is realized.

In this embodiment, preferably, the feed screw nut 21 has a nut body 210 in a spherical ring shape, an internal thread matching with the feed screw 20 is formed on an inner surface of the nut body 210, and two clamping grooves 211 extending along a spherical meridian of the nut body 210 are symmetrically formed on an outer surface of the nut body 210, as shown in fig. 6;

the structure that the worm wheel 12 is sleeved outside the screw rod nut 21 and can drive the screw rod nut 21 to rotate is realized as follows: the nut is provided with a linkage part 22, the linkage part 22 is provided with two half cylinders 220 which can be butted to form a cylindrical sleeve structure, two clamping columns 221 are oppositely formed on the inner surfaces of the two half cylinders 220, and when the two half cylinders 220 are sleeved outside the nut main body 210 (namely the two half cylinders are butted and glued for auxiliary fixation), the two clamping columns 221 are correspondingly clamped in the two clamping grooves 211 respectively; in addition, the worm wheel 12 is tightly fitted and sleeved outside the linkage member 22 and can drive the linkage member 22 to rotate, so as to drive the lead screw nut 21 to rotate, which can be seen in fig. 6. In summary, on one hand, the linkage piece is designed into a split structure, so that the assembly operation between the linkage piece and the screw rod nut can be facilitated; on the other hand, in the embodiment, the nut body is designed into a spherical ring shape, namely, the nut body is similar to a universal joint structure, so that the screw rod can slightly swing relative to the automobile door, and adverse conditions such as blocking, blocking and the like can not occur in the door opening process.

Further preferably, two of the locking posts 221 are respectively formed at the middle position of the inner surface of the two half cylinders 220.

Preferably, a friction spring is further sleeved between the worm wheel 12 and the link 22. Static friction force exists among the worm wheel, the friction elastic sheet and the linkage part by means of the friction elastic sheet, and the static friction force among the worm wheel, the friction elastic sheet and the linkage part can be adjusted by adjusting the interference amount of the friction elastic sheet; when the sliding friction force (i.e. resistance) between the worm wheel and the friction elastic sheet is larger than the set value of the static friction force, the worm wheel slips and idles.

In this embodiment, it is preferable that the screw rod 20 is arranged in a transverse direction, and a metal protection block 23 is riveted to one axial end of the screw rod 20;

the inner surfaces of the two axial ends of each semi-cylinder 220 are inclined surfaces 222 formed by extending in an outward inclined manner, when the two semi-cylinders 220 are butted, the two inclined surfaces 222 on the same axial side are also butted to form an inclined ring surface, and the inclined ring surface facing one axial end of the screw rod 20 can also stop and limit the metal protection block 23; when the door is opened to the full-open position, the inclined ring surface can stop and limit the metal protection block, so that the phenomenon that the door or a metal plate is deformed and damaged due to the fact that the door is continuously pushed outwards by artificial violence is prevented, and a good door over-opening protection effect is achieved.

In this embodiment, preferably, the motor 10 is positioned and installed on an inner wall of a door of an automobile, and the specific implementation structure is as follows: the mounting plate base 3 is provided for mounting the motor 10, the mounting plate base 3 is of an integrated symmetrical structure (see fig. 1 and 5 in particular), and the mounting plate base 3 is detachably positioned and mounted on the inner wall of the automobile door. By means of the integrated symmetrical structure of the mounting plate seat, the flexibility and the convenience in mounting the motor can be greatly improved, and the automobile door driving mechanism is better adapted to the inner spaces of doors of different automobile types.

Further preferably, a through hole 30 for the other shaft end of the screw rod 20 to movably penetrate through is arranged in the middle of the mounting plate base 3, and a rubber sealing plug 4 (see fig. 2 and 5 in particular) is further arranged in the through hole 30, so that good dustproof and waterproof effects are achieved.

Further preferably, a housing 5 made of a plastic material is further provided, and the housing 5 is positioned and covered on a part of the screw rod 20 to play a good role in dust prevention and water prevention, which can be seen in fig. 1 and 4.

In summary, the automobile door driving mechanism of the utility model has the advantages of small structure, light weight and convenient installation; and effectively reduce the working noise and improve the use satisfaction of consumers.

The above description is only a preferred embodiment of the present invention, but not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as within the protection scope of the present invention.

Claims

1. A small-size automobile door driving mechanism comprises a power unit which is arranged in an automobile door and used for providing power, and an execution unit which is connected with an automobile body, and is characterized in that: the execution unit is provided with a screw rod (20) and a screw rod nut (21) sleeved on the screw rod (20) in a threaded manner, one shaft end of the screw rod (20) is freely arranged in an automobile door, and the other shaft end of the screw rod (20) movably penetrates out of the automobile door and is rotationally connected with an automobile body; the power unit is provided with a motor (10), a worm (11) connected with a power output shaft of the motor (10) in a positioning mode, and a worm wheel (12) connected with the worm (11) in a meshed mode, and the worm wheel (12) is sleeved outside the screw rod nut (21) and can drive the screw rod nut (21) to rotate.

2. The small automobile door drive mechanism according to claim 1, characterized in that: the lead screw nut (21) is provided with a nut main body (210) in a spherical ring shape, internal threads matched with the lead screw (20) are formed on the inner surface of the nut main body (210), and two clamping grooves (211) extending along the spherical surface meridian of the nut main body (210) are symmetrically arranged on the outer surface of the nut main body (210);

the worm wheel (12) is sleeved outside the screw rod nut (21) and can drive the screw rod nut (21) to rotate, and the structure is as follows: the nut is provided with a linkage piece (22), the linkage piece (22) is provided with two half cylinders (220) which can be butted to form a cylindrical sleeve body structure, two clamping columns (221) are oppositely formed on the inner surfaces of the two half cylinders (220), and when the two half cylinders (220) are sleeved outside the nut main body (210), the two clamping columns (221) are correspondingly clamped in the two clamping grooves (211) respectively; in addition, the worm wheel (12) is tightly sleeved outside the linkage piece (22) in a matching mode and can drive the linkage piece (22) to rotate, and then the lead screw nut (21) is driven to rotate.

3. A small automobile door drive mechanism according to claim 2, characterized in that: the two clamping columns (221) are respectively formed in the middle positions of the inner surfaces of the two half cylinders (220).

4. A small automobile door drive mechanism according to claim 2, characterized in that: a friction elastic sheet is sleeved between the worm wheel (12) and the linkage piece (22).

5. A small automobile door drive mechanism according to claim 2, characterized in that: the screw rod (20) is arranged along the transverse direction, and a metal protection block (23) is riveted on one axial end of the screw rod (20);

the inner surfaces of two shaft ends of each semi-cylinder (220) are inclined surfaces (222) formed by extending in an outward inclined mode, when the two semi-cylinders (220) are in butt joint, the two inclined surfaces (222) located on the same shaft side are also in butt joint to form an inclined ring surface, and the inclined ring surface facing one shaft end of the screw rod (20) can further limit the metal protection block (23) in a stopping mode.

6. The small automobile door drive mechanism according to claim 1, characterized in that: motor (10) location installation is on car door inner wall, and concrete implementation structure does: the motor mounting structure is characterized in that a mounting plate seat (3) for mounting the motor (10) is arranged, the mounting plate seat (3) is of an integrated symmetrical structure, and the mounting plate seat (3) is detachably positioned and mounted on the inner wall of the automobile door.

7. The small automobile door drive mechanism according to claim 6, characterized in that: a through hole (30) for the other shaft end of the screw rod (20) to movably penetrate is arranged in the middle of the mounting plate seat (3), and a rubber sealing plug (4) is further arranged in the through hole (30).

8. The small automobile door drive mechanism according to claim 1, characterized in that: the screw rod positioning device is further provided with a cover shell (5), and the cover shell (5) is positioned outside the local part of the screw rod (20).