Electric scissor door hinge

Abstract

The invention discloses an electric scissor door hinge, and relates to the technical field of vehicles, the electric scissor door hinge comprises a vehicle body fixing support and a vehicle door fixing support, an electric support rod is arranged between the vehicle body fixing support and the vehicle door fixing support, and a power assisting mechanism is arranged between the vehicle body fixing support and the vehicle door fixing support. The vehicle body fixing support is connected with a vehicle body of a vehicle, the vehicle door fixing support is connected with a vehicle door of the vehicle, and when the electric supporting rod works to open the vehicle door, the vehicle door fixing support is conveniently opened through the power assisting mechanism arranged between the vehicle body fixing support and the vehicle door fixing support, so that the vehicle door is conveniently opened, and the practicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an electric scissor door hinge. Background Art

[0002] With the advent of the era of electric and intelligent vehicles, people have higher requirements for the convenience and comfort of cars. People pursue the convenience of cars and different car-using experiences. There are also different ways to open car doors, such as electric side doors, electric scissor doors, etc.

[0003] Although some scissor door connection structures are disclosed in the prior art, most of them have the following problems: the hinge actuators are all mechanical devices based on the "four-axis common intersection point", which are extremely complex in design due to the outward lateral movement, and the adjustment range of the door operation trajectory is small. Different hinge actuators are required for different doors, resulting in poor versatility. At the same time, during the door opening process, the door is poorly stressed and shakes.

[0004] For example, the publication number CN111719975B disclosed a car scissor door hinge on August 31, 2021, including a body side hinge, a first rotating shaft, a rotating head, a second rotating shaft, a door side hinge and a limit pin; the rotating head is hinged to the body side hinge through the first rotating shaft, the door side hinge is hinged to the rotating head through the second rotating shaft, the limit pin is slidably connected to the rotating head, the limit pin includes a rack and a limit shaft, the door side hinge is provided with a transmission tooth, the transmission tooth is meshed with the rack, the body side hinge is provided with a limit hole, and the limit shaft passes through the rotating head and is adapted to the limit hole. When the above-disclosed car scissor door hinge is in use, the car door cannot be conveniently moved and opened, and the practicality is poor. Summary of the invention

[0005] The purpose of the present invention is to provide an electric scissor door hinge that is more convenient for opening a vehicle door. The present invention provides a booster mechanism between a vehicle door fixing bracket and a vehicle body fixing bracket, so that the vehicle door fixing bracket and the vehicle body fixing bracket can move relative to each other more smoothly under the action of an electric strut, thereby realizing convenient relative movement of the vehicle door and the vehicle body, and having higher practicality.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: an electric scissor door hinge, including a body fixing bracket and a door fixing bracket, an electric strut is provided between the body fixing bracket and the door fixing bracket, and a power assist mechanism is provided between the body fixing bracket and the door fixing bracket.

[0007] A bearing seat is provided between the body fixing bracket and the door fixing bracket, the bearing seat is connected to the body fixing bracket through a hinge shaft, the bearing seat is connected to the door fixing bracket through a bearing, and the central axis of the hinge shaft and the central axis of the bearing are perpendicular to each other.

[0008] The power-assisting mechanism includes a fixing frame connected to a vehicle body fixing bracket, a straight column is provided between the fixing frame and the bearing seat, a guide sleeve is provided on the straight column, the guide sleeve is connected to the fixing frame through a universal bearing, a pressure head is provided at one end of the straight column away from the universal bearing, the pressure head is connected to the bearing seat, and a power-assisting spring is also provided between the pressure head and the guide sleeve.

[0009] The guide sleeve is provided with a protrusion, the booster spring is arranged between the protrusion and the pressure head, the bearing seat is provided with an arc groove, the end of the pressure head contacts the arc groove, and a retaining spring is further provided between the universal bearing and the fixing frame.

[0010] The door fixing bracket is provided with a connecting shaft, the connecting shaft is connected to the bearing seat through a bearing, one end of the connecting shaft extends out of the bearing seat, and a locking nut is provided on the connecting shaft.

[0011] A balancing bar is arranged between the vehicle body fixing bracket and the vehicle door fixing bracket, two ends of the balancing bar are respectively hinged to the vehicle body fixing bracket and the vehicle door fixing bracket, and the balancing bar is cross-arranged with the electric strut.

[0012] The door fixing bracket is provided with a universal roller, the vehicle body fixing bracket is provided with a moving guide rail, and the universal roller is in contact with the moving guide rail.

[0013] The motion guide rail is connected to the vehicle body fixing bracket via a positioning pin.

[0014] The door fixing bracket is provided with a mounting shaft, and the universal roller is connected to the mounting shaft via a fixing bolt.

[0015] The vehicle body fixing bracket comprises an upper frame and a lower frame, and the upper frame and the lower frame are connected by connecting bolts.

[0016] The beneficial effects of the present invention are:

[0017] The body fixing bracket is connected to the body of the vehicle, and the door fixing bracket is connected to the door of the vehicle. When the electric strut works, the door is opened, and the door fixing bracket is conveniently opened through the power-assist mechanism arranged between the body fixing bracket and the door fixing bracket, thereby realizing convenient opening of the door, which is more practical.

[0018] The stable rotation of the door fixing bracket is achieved through the cooperation of the bearing seat, the bearing, the fixing bracket, the guide sleeve, the straight column and the booster spring. The booster spring can not only realize the convenient opening of the door fixing bracket, but also realize the smooth operation of the door through the buffering work of the booster spring when the door is closed, and the versatility is higher.

[0019] The movement of the door fixing bracket is limited by the balance bar, thereby ensuring that the trajectory of the door fixing bracket and the door remains fixed during movement, and when the body fixing bracket and the door fixing bracket move relatively, the universal roller on the door fixing bracket is always in contact with the moving guide rail on the body fixing bracket, and the movement trajectory of the door fixing bracket is made more accurate through the mutual cooperation of the moving guide rail and the universal roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the electric scissor door hinge of the present invention.

[0021] Figure 2 for Figure 1 Schematic diagram of the electrical AA cross section.

[0022] Figure 3 for Figure 1 Schematic diagram of the structure when the electric scissor door hinge is connected to the car door.

[0023] In the attached drawings: 1-body fixing bracket, 101-upper frame, 102-lower frame, 103-connecting bolt, 2-door fixing bracket, 201-connecting shaft, 202-installing shaft, 3-fixed frame, 4-straight column, 5-bearing seat, 501-arc groove, 6-bearing, 7-balance bar, 8-electric strut, 9-guide sleeve, 10-universal bearing, 11-boost spring, 12-pressure head, 13-circlip, 14-anti-loosening nut, 15-hinge shaft, 16-movement guide rail, 1601-locating pin, 17-universal roller, 18-fixing bolt, 19-door. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] like Figure 1-3 As shown, the electric scissor door hinge includes a body fixing bracket 1 and a door fixing bracket 2, an electric strut 8 is provided between the body fixing bracket 1 and the door fixing bracket 2, and a power assist mechanism is provided between the body fixing bracket 1 and the door fixing bracket 2. Specifically, the door fixing bracket 2 is connected to the door 19 by bolts, and the body fixing bracket 1 is connected to the body by bolts.

[0027] When in use, the body fixing bracket 1 is connected to the body of the vehicle, the door fixing bracket 2 is connected to the door of the vehicle, and the electric strut 8 works so that when the door is opened, the door fixing bracket 2 is conveniently opened through the power-assisting mechanism arranged between the body fixing bracket 1 and the door fixing bracket 2, thereby realizing convenient opening of the door, which is more practical.

[0028] A bearing seat 5 is provided between the body fixing bracket 1 and the door fixing bracket 2. The bearing seat 5 is connected to the body fixing bracket 1 through a hinge shaft 15. The bearing seat 5 is connected to the door fixing bracket 2 through a bearing 6. The central axis of the hinge shaft 15 and the central axis of the bearing 6 are perpendicular to each other. When the door fixing bracket 2 moves under the action of the electric push rod 8, the door fixing bracket 2 rotates with the bearing seat 5 under the support of the bearing 6. When the door fixing bracket 2 moves to the extreme position, the bearing seat 5 rotates under the action of the hinge shaft 15, thereby realizing stable angle adjustment between the door fixing bracket 2 and the body fixing bracket 1, and the central axis of the hinge shaft 15 and the central axis of the bearing 6 are perpendicular to each other, ensuring that the angle of rotation between the door fixing bracket 2 and the body fixing bracket 1 is adapted to the needs of the actual product.

[0029] The boost mechanism includes a fixing frame 3 connected to a vehicle body fixing frame 1, a straight column 4 is provided between the fixing frame 3 and the bearing seat 5, a guide sleeve 9 is sleeved on the straight column 4, and the guide sleeve 9 is connected to the fixing frame 3 through a universal bearing 10, a pressure head 12 is provided at one end of the straight column 4 away from the universal bearing 10, and the pressure head 12 is connected to the bearing seat 5, and a boost spring 11 is also provided between the pressure head 12 and the guide sleeve 9. When the door is in a closed state, the boost spring 11 is in a compressed state on the straight column 4, and when the electric strut 8 works to move the door fixing frame 2, when the door is opened, the boost spring 11 squeezes the guide sleeve 9 through the elastic force of the boost spring 11, and the guide sleeve 9 is connected to the fixing frame 3 through the universal bearing 10, and the boost spring 11 squeezes the fixing frame 3 and the bearing seat 5 to move relative to each other, thereby realizing that the door fixing frame 2 connected to the bearing seat 5 and the vehicle body fixing frame 1 connected to the fixing frame 3 move relative to each other, thereby realizing convenient opening of the door, and when the door is closed, the buffering work of the boost spring 11 realizes the smooth operation of the door, and the versatility is higher.

[0030] A protrusion is provided on the guide sleeve 9, and an assisting spring 11 is arranged between the protrusion and the pressure head 12, so as to realize the stable installation of the assisting spring 11 on the guide sleeve 9. An arc groove 501 is provided on the bearing seat 5, and the end of the pressure head 12 contacts the arc groove 501, so as to ensure that the pressure head 12 always maintains a stable connection with the bearing seat 5 under the action of the assisting spring 11. A retaining spring 13 is also provided between the universal bearing 10 and the fixed frame 3. Specifically, the guide sleeve 9 is provided with a retaining spring groove, and the retaining spring 13 is clamped in the retaining spring groove, and the end face is close to the end face of the universal bearing, which can ensure that the guide sleeve 9 is aligned in the universal bearing 10, ensure that it does not fall out under stress during the assembly process, and ensure that the entire device can run smoothly.

[0031] A connecting shaft 201 is provided on the door fixing bracket 2, and the connecting shaft 201 is connected to the bearing seat 5 through a bearing 6. One end of the connecting shaft 201 extends outside the bearing seat 5. A locking nut 14 is provided on the connecting shaft 201. The stable connection between the door fixing bracket 2 and the bearing seat 5 is achieved through the setting of the connecting shaft 201.

[0032] A balance bar 7 is provided between the vehicle body fixing bracket 1 and the door fixing bracket 2, and the two ends of the balance bar 7 are respectively hinged to the vehicle body fixing bracket 1 and the door fixing bracket 2, and the balance bar 7 is cross-arranged with the electric strut 8. The movement of the door fixing bracket 2 is limited by the balance bar 7, thereby ensuring that the trajectory of the door fixing bracket 2 and the door remains fixed during movement. Specifically, the balance bar 7 is connected to the vehicle body fixing bracket 1 and the door fixing bracket 2 through a pin shaft, and a pin hole is provided at the end of the balance bar 7. Mounting seats for mounting the pin shaft are respectively provided on the vehicle body fixing bracket 1 and the door fixing bracket 2, and the central axes of the two pin shafts at the ends of the balance bar 7 are perpendicular to each other.

[0033] A universal roller 17 is provided on the door fixing bracket 2, and a moving guide rail 16 is provided on the body fixing bracket 1. The universal roller 17 is in contact with the moving guide rail 16. When the body fixing bracket 1 and the door fixing bracket 2 move relative to each other, the universal roller 17 on the door fixing bracket 2 is always in contact with the moving guide rail 16 on the body fixing bracket 1. Through the mutual cooperation of the moving guide rail 16 and the universal roller 17, the moving trajectory of the door fixing bracket 2 is made more accurate.

[0034] The moving guide rail 16 is connected to the vehicle body fixing bracket 1 through the positioning pin 1601, so as to ensure the accurate installation of the moving guide rail 16 on the vehicle body fixing bracket 1. Specifically, two positioning pins 1601 are provided, and pin holes matching with the positioning pins 1601 are provided on the moving guide rail 16 and the vehicle body fixing bracket 1.

[0035] The door fixing bracket 2 is provided with a mounting shaft 202 , and the universal roller 17 is connected to the mounting shaft 202 via a fixing bolt 18 . The mounting shaft 202 and the fixing bolt 18 are used to conveniently install the universal roller 17 . Specifically, a threaded hole matching the fixing bolt 18 is provided on the mounting shaft 202 .

[0036] The vehicle body fixing bracket 1 includes an upper frame 101 and a lower frame 102, and the upper frame 101 and the lower frame 102 are connected by connecting bolts 103, so that the split connection work of the vehicle body mounting bracket 1 has a simple molding process, high processing accuracy, convenient assembly, simple and convenient adjustment during the assembly process, and low cost.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric scissor door hinge, characterized in that: It comprises a vehicle body fixing bracket (1) and a vehicle door fixing bracket (2), an electric strut (8) is arranged between the vehicle body fixing bracket (1) and the vehicle door fixing bracket (2), and a power assist mechanism is arranged between the vehicle body fixing bracket (1) and the vehicle door fixing bracket (2).

2. The electric scissor door hinge according to claim 1, characterized in that: A bearing seat (5) is provided between the vehicle body fixing bracket (1) and the vehicle door fixing bracket (2); the bearing seat (5) is connected to the vehicle body fixing bracket (1) via a hinge shaft (15); the bearing seat (5) is connected to the vehicle door fixing bracket (2) via a bearing (6); and the central axis of the hinge shaft (15) and the central axis of the bearing (6) are perpendicular to each other.

3. The electric scissor door hinge according to claim 2, characterized in that: The power-assisting mechanism comprises a fixing frame (3) connected to a vehicle body fixing bracket (1); a straight column (4) is provided between the fixing frame (3) and a bearing seat (5); a guide sleeve (9) is sleeved on the straight column (4); the guide sleeve (9) is connected to the fixing frame (3) via a universal bearing (10); a pressure head (12) is provided at one end of the straight column (4) away from the universal bearing (10); the pressure head (12) is connected to the bearing seat (5); and a power-assisting spring (11) is further provided between the pressure head (12) and the guide sleeve (9).

4. The electric scissor door hinge according to claim 3, characterized in that: The guide sleeve (9) is provided with a protrusion, the booster spring (11) is arranged between the protrusion and the pressure head (12), the bearing seat (5) is provided with an arc groove (501), the end of the pressure head (12) is in contact with the arc groove (501), and a retaining spring (13) is also provided between the universal bearing (10) and the fixing frame (3).

5. The electric scissor door hinge according to claim 2, characterized in that: The door fixing bracket (2) is provided with a connecting shaft (201), the connecting shaft (201) is connected to the bearing seat (5) via a bearing (6), one end of the connecting shaft (201) extends outside the bearing seat (5), and a locking nut (14) is provided on the connecting shaft (201).

6. The electric scissor door hinge according to any one of claims 1 to 5, characterized in that: A balancing rod (7) is provided between the vehicle body fixing bracket (1) and the vehicle door fixing bracket (2); two ends of the balancing rod (7) are respectively hinged to the vehicle body fixing bracket (1) and the vehicle door fixing bracket (2); and the balancing rod (7) and the electric strut (8) are cross-arranged.

7. The electric scissor door hinge according to claim 6, characterized in that: The door fixing bracket (2) is provided with a universal roller (17), the vehicle body fixing bracket (1) is provided with a moving guide rail (16), and the universal roller (17) is in contact with the moving guide rail (16).

8. The electric scissor door hinge according to claim 7, characterized in that: The moving guide rail (16) is connected to the vehicle body fixing bracket (1) via a positioning pin (1601).

9. The electric scissor door hinge according to claim 7, characterized in that: The door fixing bracket (2) is provided with a mounting shaft (202), and the universal roller (17) is connected to the mounting shaft (202) via a fixing bolt (18).

10. The electric scissor door hinge according to claim 9, characterized in that: The vehicle body fixing bracket (1) comprises an upper frame (101) and a lower frame (102), and the upper frame (101) and the lower frame (102) are connected via connecting bolts (103).

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