Invisible gear and rack transmission automobile electric sliding door

Abstract

The utility model discloses an invisible gear rack transmission automobile electric sliding door which comprises an automobile door, a transmission swing arm and a rack, one side of the transmission swing arm is fixedly connected with the automobile door through a tail installation piece, and the rack is located on the other side of the transmission swing arm and fixed to an automobile body bottom plate through a bolt. The transmission swing arm comprises a driving motor, a driving gear, a transition gear and a guide assembly, an output shaft of the driving motor drives the driving gear to rotate, the guide assembly comprises a guide wheel and a pressing wheel which are fixed to one side of the transmission swing arm, the pressing wheel is located at the lower end of the guide wheel, and a guide rail is arranged on the side, close to the automobile door, of the rack. And a plurality of rack teeth are arranged on the rack below the guide rail. The problem that the tooth profile of the rack is exposed is solved, the risk that the automatic sliding door cannot be manually pushed and pulled due to device faults in the walking process is reduced, a rack transmission structure cannot be seen on the outer side of a vehicle body, and the rack and the guide rail groove are designed to be of an integrated structure. The contradiction that a driving gear serves as a guide in traditional gear and rack transmission is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic equipment, in particular to an invisible gear rack transmission automobile electric sliding door. Background Art

[0002] The driving structures of automobile electric sliding doors include wire drive, chain drive, synchronous belt drive, gear rack drive and other modes. Among them, gear rack drive has the advantages of simple structure, easy assembly and longer life, and is adopted by more and more models. However, the automobile electric sliding door device is an important component of the automobile body. The gear rack mechanism is an important driving device of the electric sliding door, and customers have higher and higher requirements on its appearance and performance. The traditional electric sliding door has an external gear rack solution in which the rack tooth profile is directly exposed (on the pedal side) without any objects blocking it. The electric swing arm drive gear directly engages with the exposed rack to realize the opening and closing movement of the door. Although it is indeed reliable, its appearance and safety have always been controversial among customers. In addition, the safety hazard of its device structure is that when a flexible object falls into the guide rail during the movement of the sliding door, it is easy to be drawn into the device, which may cause the device to malfunction, get stuck or be damaged. At this time, the door cannot continue to be opened or closed, and the clamped flexible object must be removed, which creates a great safety hazard. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide an invisible gear rack transmission automobile electric sliding door to solve the technical problems raised in the above background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an invisible gear rack transmission automobile electric sliding door, comprising a door, a transmission swing arm and a rack, one side of the transmission swing arm is fixedly connected to the door through a tail mounting piece, the rack is located on the other side of the transmission swing arm and is fixed to the bottom plate of the vehicle body by bolts, the transmission swing arm comprises a driving motor, a driving gear, a transition gear and a guide assembly, the output shaft of the driving motor drives the driving gear to rotate, the guide assembly comprises a guide wheel and a pressure wheel fixed to one side of the transmission swing arm, the pressure wheel is located at the lower end of the guide wheel, a guide rail is provided on the side of the rack close to the door, the guide wheel can move left and right in the guide rail, a plurality of rack teeth are provided on the rack below the guide rail, there are two guide wheels, a driving gear is provided between the two guide wheels and below the outer edge of the guide rail, the driving gear is meshed with the rack teeth, the driving gear is meshed with the transition gear, and the transition gear is also meshed with the driving gear.

[0005] Furthermore, a bevel gear is provided at the end of the transmission shaft of the driving motor, and a conical gear is connected to the bottom of the driving gear, and the conical gear and the bevel gear are meshed.

[0006] Furthermore, the gap between the outer diameter of the guide wheel and the width of the guide rail is smaller than the meshing gap between the driving gear and the rack teeth.

[0007] Furthermore, the rack teeth are inwardly biased racks.

[0008] The utility model solves the problem of the rack tooth profile leaking out, reduces the risk of the automatic sliding door being unable to be manually pushed and pulled due to device failure during the movement of the automatic sliding door, the rack transmission structure cannot be seen from the outside of the vehicle body, and the rack and the guide rail groove adopt an integrated structural design, which solves the contradiction in the traditional gear rack transmission that the driving gear acts as a guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0011] Figure 3 for Figure 2 The enlarged structure utility model at A in the middle. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0013] The following describes an embodiment of the utility model based on its overall structure.

[0014] like Figure 1-Figure 3 As shown, the utility model includes a door 1, a transmission swing arm 2 and a rack 3. One side of the transmission swing arm 2 is fixedly connected to the door 1 through a tail mounting member 5, and can achieve fine adjustment in the X direction and the Y direction to ensure accurate positioning of the door installation. The rack 3 is located on the other side of the transmission swing arm 2 and is fixed to the bottom plate of the vehicle body by bolts, specifically fixed to the pedal sheet metal of the vehicle body. The transmission swing arm 2 includes a driving motor 4, a driving gear 6, a transition gear 7 and a guide assembly. The output shaft of the driving motor 4 drives the driving gear 6 to rotate. Specifically, the end of the transmission shaft of the driving motor 4 is provided with a bevel gear 9, and the bottom of the driving gear 6 is connected with a bevel gear 8, which is meshed with the bevel gear 8. The driving motor 4 drives the bevel gear 9 to rotate through the transmission shaft, and the bevel gear 9 drives the driving gear 6 to rotate through the bevel gear 8.

[0015] The guide assembly of the utility model includes a guide wheel 10 and a pressure wheel 11 fixed to one side of the transmission swing arm 2. The pressure wheel 11 is a load-bearing wheel and is located at the lower end of the guide wheel 10. A guide rail 13 is provided on the side of the rack 3 close to the vehicle door 1. The guide rail 13 is an inverted U-shaped structure. The guide wheel 10 can move left and right in the guide rail 13. A plurality of rack teeth 14 are provided on the rack 3 below the guide rail 13. Preferably, the rack teeth 14 are inward-biased racks. The rack teeth 14 are arranged below the guide rail 13. The rack transmission structure cannot be seen from the outside of the vehicle body, which solves the problem of leakage of the rack tooth profile and reduces the risk of the automatic sliding door being unable to be manually pushed or pulled due to device failure during the movement. There are two guide wheels 13, and a driving gear is provided between the two guide wheels and below the outer edge of the guide rail. The driving gear 12 meshes with the rack teeth 14, the driving gear 6 meshes with the transition gear 7, and the transition gear also meshes with the driving gear 12. The driving gear 6 drives the transition gear 7 to rotate, and the transition gear 7 drives the driving gear 12 to rotate, so that the driving gear 12 moves left and right on the rack teeth 14, and drives the guide wheel 10 to slide left and right in the guide rail 13, so that the door is closed or opened. The pressure wheel 11 can rotate left and right as the weight of the pressure-bearing door 1 and the transmission swing arm 2. In order to ensure that the driving gear 12 and the rack teeth 14 will not be disengaged, the gap between the outer diameter of the guide wheel 10 and the width of the guide rail is smaller than the gap between the driving gear 12 and the rack teeth 14.

[0016] The driving motor 4 of the present invention is not limited to the gear transmission in driving the driving gear 6, and can also be driven by chain transmission, synchronous belt transmission, wire transmission, etc.

[0017] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An invisible gear rack transmission automobile electric sliding door, characterized in that: The invention comprises a vehicle door, a transmission swing arm and a rack, wherein one side of the transmission swing arm is fixedly connected to the vehicle door through a tail mounting piece, the rack is located at the other side of the transmission swing arm and is fixed to the vehicle body bottom plate by bolts, the transmission swing arm comprises a driving motor, a driving gear, a transition gear and a guide assembly, the output shaft of the driving motor drives the driving gear to rotate, the guide assembly comprises a guide wheel and a pressure wheel fixed to one side of the transmission swing arm, the pressure wheel is located at the lower end of the guide wheel, a guide rail is provided on the side of the rack close to the vehicle door, the guide wheel can move left and right in the guide rail, a plurality of rack teeth are provided on the rack below the guide rail, there are two guide wheels, a driving gear is provided between the two guide wheels and below the outer edge of the guide rail, the driving gear is meshed with the rack teeth, the driving gear is meshed with the transition gear, and the transition gear is also meshed with the driving gear.

2. The invisible gear rack transmission automobile electric sliding door according to claim 1, characterized in that: The end of the transmission shaft of the driving motor is provided with bevel gears, and the bottom of the driving gear is connected with bevel gears, and the bevel gears are meshed with the bevel gears.

3. The invisible gear rack transmission automobile electric sliding door according to claim 1, characterized in that: The gap between the outer diameter of the guide wheel and the width of the guide rail is smaller than the meshing gap between the driving gear and the rack teeth.

4. The invisible gear rack transmission automobile electric sliding door according to claim 1, characterized in that: The rack teeth are inner biased racks.

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