CN210049745U

CN210049745U - Electric opening and closing device for automobile tail door

Info

Publication number: CN210049745U
Application number: CN201920232865.9U
Authority: CN
Inventors: 李健华
Original assignee: Han Zhen (shenzhen) Technology Co Ltd
Current assignee: Han Zhen (shenzhen) Technology Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-02-11
Anticipated expiration: 2029-02-25

Abstract

The utility model relates to a car tail-gate switching device technical field specifically is an electronic switching device of car tail-gate, which comprises a motor, the reducing gear box, the drive shaft, the axle housing, the transmission shaft, the rocking arm, swing arm and slide bar, all with a transmission shaft fixed connection behind the axle housing is stretched out at the drive shaft both ends, transmission shaft fixed connection rocking arm, rocking arm fixed connection swing arm, the slide bar is equipped with the through hole, be equipped with flat knob in the through hole, flat knob threaded connection swing arm, and the bolt section periphery cover of flat knob is equipped with the sliding sleeve, sliding sleeve outer wall and slide bar sliding fit, the slide bar passes through clamping piece and car tail-gate curved arm fixed connection: the utility model discloses install at car boot top, occupation space is less, provides power through motor and reducing gear box, and the transmission shaft is rotatory to drive the swing arm swing, and the swing arm passes through slide mechanism and realizes swing arm length change, and the electronic switching of tail-gate is realized in the swing arm swing, simple structure, convenient to use.

Description

Electric opening and closing device for automobile tail door

Technical Field

The utility model relates to an automobile tail-gate switching device technical field specifically is an electronic switching device of automobile tail-gate.

Background

At present, most three-compartment cars in the market generally have no automatic tail door opening and closing function, and although some luxury cars of brands such as BMW, Benz, Audi and the like are provided with automatic opening and closing tail doors, the market share of the cars is very low. In order to realize the automatic opening and closing function of the car tail door, an electric straight stay bar or an electric L-shaped stay bar is always adopted to refit a car on the market. However, such products generally take up a large trunk space and suffer from spring drop and damping.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic switching device of car tail-gate to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an electric opening and closing device for an automobile tail door comprises a motor, a reduction gearbox, a driving shaft, a shaft shell, a transmission shaft, a rotating arm, a swinging arm and a sliding rod, wherein the output end of the motor is fixedly connected with the input end of the reduction gearbox through a coupler, the output end of the reduction gearbox is connected with the driving shaft through gear transmission, two ends of the driving shaft are connected with bearings on the inner wall of the shaft shell, the shaft shell is fixedly connected with a shell of the reduction gearbox, the shell of the reduction gearbox is fixedly connected with a first support, the shaft shell is fixedly connected with a second support, the first support and the second support are both fixedly connected with the inner wall of the top of the automobile tail door, two ends of the driving shaft are both fixedly connected with the transmission shaft after extending out of the shaft shell, the transmission shaft is fixedly connected with the rotating arm, the swinging arm is fixedly, and the periphery of the bolt section of the flat knob is sleeved with a sliding sleeve, the outer wall of the sliding sleeve is in sliding fit with the sliding rod, the flat head section of the flat knob is abutted against the sliding rod, and the sliding rod is fixedly connected with a car tail door bent arm through a clamping piece.

Preferably, the motor is a low-noise high-torque permanent magnet motor.

Preferably, the rotating arm and the swing arm are respectively welded with two ends of a ribbed plate, and the ribbed plate is a triangular block.

Preferably, the through holes are formed by semicircular through holes at two ends and rectangular through holes in the middle, two through holes are formed in each sliding rod, and the two through holes are linearly arranged along the central shaft at the long end of each sliding rod.

Preferably, the inner wall of the sliding sleeve is abutted against the outer wall of the round rod section of the flat knob, and the outer wall of the sliding sleeve is coated with a sliding wear-resistant coating.

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

1. the utility model is installed on the top of the car tail box, occupies smaller space, provides power through the motor and the reduction gearbox, rotates the transmission shaft to drive the swing arm to swing, realizes the length change of the swing arm through the sliding mechanism, realizes the electric opening and closing of the tail door through the swing arm swing, and has simple structure and convenient use;

2. the utility model controls the driving shaft to rotate positively and negatively to control the tail gate to open and close, the swing arm adopts the sliding mechanism to realize the change of the length of the swing arm, and when the length of the swing arm is shortened, the extending part of the sliding rod extends to the top of the tail box to avoid occupying the space of the tail box;

3. the utility model has only one motor, and because the transmission shafts at the two ends of the driving shaft are integrated, the defect of asynchronous left and right output is avoided, and the defect of long-time use attenuation of the spring is avoided because the spring is not adopted;

4. the utility model discloses a sliding sleeve cover has reduced the friction loss between flat knob and the slide bar in locating flat knob's round bar section periphery for swing arm and slide bar take place relative displacement more level and smooth, steady.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is a schematic structural view of the middle flat knob and the sliding sleeve of the present invention.

In the figure: the device comprises a motor 1, a reduction gearbox 2, a driving shaft 3, a shaft shell 4, a first support 5, a second support 6, a transmission shaft 7, a rotating arm 8, a swing arm 9, a sliding rod 10, a through hole 11, a flat knob 12, a sliding sleeve 13 and a ribbed plate 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an electric opening and closing device for an automobile tail door comprises a motor 1, a reduction gearbox 2, a driving shaft 3, a shaft shell 4, a transmission shaft 7, a rotating arm 8, a swing arm 9 and a sliding rod 10. Motor 1 is the big moment of torsion permanent-magnet motor of low noise, the input of shaft coupling fixed connection reducing gear box 2 is passed through to motor 1's output, reducing gear box 2's output passes through gear drive and

links drive shaft

3, 3 both ends of drive shaft and 4 inner wall bearing of axle housing are connected, axle housing 4 and reducing gear box 2's shell fixed connection, the first support of reducing gear box 2's shell

fixed connection

5, 4 fixed connection second supports 6 of axle housing, first support 5 and second support 6 all with car tail-gate top inner wall fixed connection, all with a transmission shaft 7 fixed connection after the axle housing 4 is stretched out at 3 both ends of drive shaft.

The transmission shaft 7 is fixedly connected with a rotating arm 8, and the rotating arm 8 is fixedly connected with a swinging arm 9. The rotating arm 8 and the swing arm 9 are respectively welded with two ends of a ribbed plate 14, and the ribbed plate 14 is a triangular block. The sliding rods 10 are provided with through holes 11, the through holes 11 are composed of through holes with semicircular ends and rectangular middle, each sliding rod 10 is provided with two through holes 11, and the two through holes 11 are linearly arranged along the central axis of the long end of the sliding rod 10. Be equipped with flat knob 12 in the through hole 11, flat knob 12 threaded connection swing arm 9 to the bolt section periphery cover of flat knob 12 is equipped with sliding sleeve 13, and sliding sleeve 13 inner wall and flat knob 12's round bar section outer wall looks butt, and sliding sleeve 13 outer wall coating has smooth wear-resisting coating. The outer wall of the sliding sleeve 13 is in sliding fit with the sliding rod 10, the flat head section of the flat knob 12 is abutted against the sliding rod 10, and the sliding rod 10 is fixedly connected with the car tail door bent arm through a clamping piece.

The working principle is as follows: the motor 1 is started, the motor 1 drives the driving shaft 3 to rotate through the reduction gearbox 2, the driving shaft 3 drives the transmission shaft 7 to rotate, the transmission shaft 7 drives the swing arm 9 to swing through the rotating arm 8, the bottom of the sliding rod 10 is fixedly connected with a car tail door bent arm through a clamping piece, the top and the middle of the sliding rod 10 are limited on the swing arm 9 through the flat knob 12 and the sliding sleeve 13, namely the sliding rod 10 and the swing arm 9 form a sliding mechanism, so that the total length change of the sliding rod 10 and the swing arm 9 is realized, when the total length is increased, the sliding rod 10 pushes the car tail door, and when the total length is maximum, the car; when the total length is shortened, the extending part of the slide bar 10 extends to the top of the tail box to avoid occupying the space of the tail box.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electronic switching device of car tail-gate, includes motor (1), reducing gear box (2), drive shaft (3), axle housing (4), transmission shaft (7), rocking arm (8), swing arm (9) and slide bar (10), its characterized in that: the output end of the motor (1) is fixedly connected with the input end of the reduction gearbox (2) through a coupler, the output end of the reduction gearbox (2) is connected with the driving shaft (3) through gear transmission, two ends of the driving shaft (3) are connected with bearings on the inner wall of the shaft shell (4), the shaft shell (4) is fixedly connected with the shell of the reduction gearbox (2), the shell of the reduction gearbox (2) is fixedly connected with the first support (5), the shaft shell (4) is fixedly connected with the second support (6), the first support (5) and the second support (6) are fixedly connected with the inner wall of the top of the car tail door, two ends of the driving shaft (3) extend out of the shaft shell (4) and are fixedly connected with a transmission shaft (7), the transmission shaft (7) is fixedly connected with a rotating arm (8), the rotating arm (8) is fixedly connected with a swing arm (9), the sliding rod (10), be equipped with flat knob (12) in through hole (11), flat knob (12) threaded connection swing arm (9) to the bolt section periphery cover of flat knob (12) is equipped with sliding sleeve (13), sliding sleeve (13) outer wall and slide bar (10) sliding fit, the flat head section and slide bar (10) looks butt of flat knob (12), slide bar (10) are through clamping piece and car tail-gate curved boom fixed connection.

2. The electric opening and closing device for the automobile tail gate according to claim 1, characterized in that: the motor (1) is a low-noise large-torque permanent magnet motor.

3. The electric opening and closing device for the automobile tail gate according to claim 1, characterized in that: the rotating arm (8) and the swing arm (9) are respectively welded with two ends of a rib plate (14), and the rib plate (14) is a triangular block.

4. The electric opening and closing device for the automobile tail gate according to claim 1, characterized in that: the through holes (11) are composed of semicircular through holes at two ends and rectangular through holes in the middle, two through holes (11) are formed in each sliding rod (10), and the two through holes (11) are linearly arranged along the central shaft of the long end of each sliding rod (10).

5. The electric opening and closing device for the automobile tail gate according to claim 1, characterized in that: the inner wall of the sliding sleeve (13) is abutted against the outer wall of the round rod section of the flat knob (12), and the outer wall of the sliding sleeve (13) is coated with a sliding wear-resistant coating.