Vehicle door limiter with electric damping structure

Abstract

The utility model discloses a vehicle door limiter with an electric damping structure, which belongs to the field of automobile parts and is characterized by comprising a mounting bracket, a cover plate, a seat plate, a pressing block, a pull rod, a stop block, a spring piece and a motor, the width of the pull rod is gradually increased from the end where the installation support is located to the end where the check block is located. The front vertical side face and the rear vertical side face of the pull rod are each provided with a series of vertical teeth to form a rack structure. The spring piece is located in a box-shaped body defined by the cover plate and the seat plate. One end of the spring piece is hinged to the cover plate or the seat plate, and the other end of the spring piece is driven by the motor to rotate around the hinged position by a certain angle. Teeth matched with the pull rod rack are arranged at the position, close to the pull rod rack face, of the spring piece. Compared with the prior art, the anti-collision device has the advantage of being capable of preventing the vehicle from colliding with other vehicles and people when the vehicle is opened.

Description

Technical Field

[0001] The utility model relates to an automobile component, in particular to a door stopper with an electric damping structure. Background Art

[0002] With the progress of society, the number of cars on the road will increase. With the increase in the number of cars, the issue of car safety has received high attention. Whenever opening the car door, many drivers and passengers do not have the habit of observing the rearview mirror and the surrounding vehicles and pedestrians, which leads to the occurrence of the "door opening kill" phenomenon.

[0003] In addition, after parking, sometimes the parking space is small, resulting in a small lateral distance between cars. When people get off the car, if the door is opened with too much force, it can easily hit the vehicle next to it or other obstacles, which can not only easily damage the vehicle, but also easily cause unnecessary disputes.

[0004] In the prior art, pedestrians, vehicles and obstacles behind or on the side of the vehicle are detected by radar and other detection devices. When it is determined that the obstacles may affect the opening of the door, the position of the door is locked by the limiter to prevent the door from opening too wide and causing an accident. This technical solution has the following technical defects: ① When you need to get off the car to escape in an emergency, if there are pedestrians, vehicles and obstacles behind or on the side, the door will be locked, and the people in the car cannot get off and escape, which poses certain safety hazards; ② The detection device is located on the outer surface of the vehicle, which is easily hit by external force, scratched or stuck with snowflakes, dust, leaves or other debris, which will cause the detection device to misjudge, which will cause the door to be locked, making it impossible for people to get on and off the car; ③ When opening the door quickly, if the detection device detects pedestrians, vehicles and obstacles at this time, the limiter will lock the door, which will cause impact on the moving door, thereby causing damage to the door. Utility Model Content

[0005] The technical task of the utility model is to provide a door stopper with an electric damping structure in view of the deficiencies of the above prior art.

[0006] The technical solution of the utility model to solve the technical problem is: a vehicle door limiter with an electric damping structure, characterized in that it includes a mounting bracket, a cover plate, a seat plate, a pressure block, a pull rod, a stop block, a spring sheet and a motor, the mounting bracket is fixed to the vehicle body, one end of the pull rod is hinged to the mounting bracket, and the other end is connected to the stop block, the cover plate and the seat plate are buckled to form a box-shaped body with a cavity inside, and the box-shaped body is fixed to the vehicle door; the pull rod passes through the box-shaped body, the pressure block includes an upper pressure block and a lower pressure block, which are respectively located at the upper and lower sides of the pull rod, and the upper pressure block and the lower pressure block are respectively located at the corresponding The shell has an elastic element inside, and the elastic element pushes the pressure block to press on the upper side or the lower side of the pull rod; the width of the pull rod gradually increases from the end where the mounting bracket is located to the end where the stop block is located; a series of vertical teeth are respectively provided on the front and rear vertical sides of the pull rod to form a rack structure; the spring sheet is located in the box-shaped body surrounded by the cover plate and the seat plate; one end of the spring sheet is hinged to the cover plate or the seat plate, and the other end of the spring sheet is driven by a motor to rotate around the hinge at a certain angle; the spring sheet is provided with teeth matching the rack of the pull rod at a position close to the rack surface of the pull rod.

[0007] The above-mentioned spring sheets are respectively located on both sides of the pull rod, and the spring sheets include soft spring sheets and hard spring sheets, wherein the hardness of the hard spring sheets is greater than that of the soft spring sheets, and the soft spring sheets are located between the hard spring sheets and the pull rod; one end of the hard spring sheet is hinged to the cover plate or the seat plate, and the other end of the hard spring sheet is driven by a motor to rotate around the hinge at a certain angle; one end of the soft spring sheet is fixed on the hard spring sheet, and the other end is tilted and leans against the rack surface of the pull rod; the soft spring sheet is provided with teeth matching the rack of the pull rod at a position close to the rack surface of the pull rod.

[0008] The hard spring sheet is provided with a strip hole extending along its length direction, and a tongue-shaped spring sheet is provided in the strip hole. The tongue-shaped spring sheet is a part of the hard spring sheet, and one end of the tongue-shaped spring sheet is connected to the hard spring sheet; the tongue-shaped spring sheet is located outside the soft spring sheet, and when the soft spring sheet is pushed outward by the pull rod, the soft spring sheet will be pushed against the tongue-shaped spring sheet.

[0009] The output shaft of the above-mentioned motor is connected to the gear box, and a lead screw is provided in the gear box, and the end of the lead screw extends out of the gear box. The motor drives the lead screw to rotate through the gear box; a lead screw nut is provided on the hard spring sheet, and the lead screw passes through the lead screw nut, and the hard spring sheet is driven to move back and forth through the action of the lead screw and the lead screw nut.

[0010] Compared with the prior art, the utility model has the following outstanding beneficial effects:

[0011] 1. When pedestrians, vehicles or obstacles are detected behind or on the side of the vehicle, the limiter can be locked to prevent collision accidents caused by opening the door rashly;

[0012] 2. After the limiter is locked, the door can still be opened by force, so you can escape in an emergency;

[0013] 3. The door opening resistance gradually increases, so that the door can be opened at a smaller angle to alert vehicles or people coming from behind;

[0014] 4. When the limiter is locked, there will be a "click" sound when the door is opened, and the door will feedback resistance and vibration, reminding the person getting off the vehicle that the limiter is locked through sound and feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is one of the structural schematic diagrams of the utility model.

[0016] Figure 2 This is the second structural diagram of the present utility model.

[0017] Figure 3 It is a schematic diagram of the interior of the box-shaped body of the utility model.

[0018] Figure 4 It is a schematic diagram of the pull rod structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the interior of the box-shaped body and the pull rod structure of the utility model.

[0020] Figure 6 It is a schematic diagram of the spring sheet structure of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The utility model comprises a detector, a processor and a limiter.

[0023] The detector is used to detect a distance signal reflecting the distance between the door and obstacles, including people and vehicles coming from behind the door and obstacles on the side of the door, and transmit the distance signal to the processor; the processor is used to pre-store a dangerous distance threshold, compare the distance signal with the dangerous distance threshold, and control the limiter to perform a corresponding action when the distance signal is less than or equal to the dangerous distance threshold. The detector can be a radar, an ultrasonic distance measuring device, a camera, and other equipment.

[0024] like Figures 1 to 6As shown, the limiter includes a mounting bracket 5, a cover plate 2, a seat plate 3, a pressure block, a pull rod 4, a stopper 1, a spring sheet and a motor 12. The mounting bracket 5 is fixed on the vehicle body. One end of the pull rod 4 is hinged to the mounting bracket 5, and the other end is connected to the stopper 1. The cover plate 2 and the seat plate 3 are buckled to form a box-shaped body with a cavity inside, and the box-shaped body is fixed on the vehicle door. The pull rod 4 passes through the box-shaped body. The pressure block includes an upper pressure block and a lower pressure block, which are respectively located on the upper and lower sides of the pull rod 4. The upper pressure block and the lower pressure block are respectively located in the corresponding shell 9. The shell 9 is provided with an elastic element, and the pressure block is pushed by the elastic element to press on the upper side or lower side of the pull rod 4. The corresponding positions of the upper side and lower side of the pull rod 4 are respectively provided with grooves. The shape of the upper side and lower side of the pull rod 4, the pressure block and its auxiliary structure are the same as the existing door limiter structure.

[0025] The width of the pull rod 4 gradually increases from the end where the mounting bracket 5 is located to the end where the stopper 1 is located. A series of vertical teeth are respectively provided on the front and rear vertical sides of the pull rod 4 to form a rack 6 structure. The spring sheet is located in the box-shaped body surrounded by the cover plate 2 and the seat plate 3. Figure 3-5 As shown, the spring sheets are respectively located on both sides of the pull rod 4, and the spring sheets include a soft spring sheet 8 and a hard spring sheet 7, wherein the hardness of the hard spring sheet 7 is greater than that of the soft spring sheet 8, and the soft spring sheet 8 is located between the hard spring sheet 7 and the pull rod 4. One end of the hard spring sheet 7 is hinged to the cover plate 2 or the seat plate 3, and the other end of the hard spring sheet 7 is driven by the motor 12 to rotate around the hinge at a certain angle, so that the spring sheet can be moved away from or close to the pull rod 4. One end of the soft spring sheet 8 is fixed on the hard spring sheet 7, and the other end is tilted and leaned against the rack 6 surface of the pull rod 4. The position of the soft spring sheet 8 near the pull rod rack 6 surface is provided with teeth matching the pull rod rack 6, and the teeth on the soft spring sheet 8 and the pull rod rack 6 surface can mesh with each other, and because the hardness of the soft spring sheet 8 is relatively small, when the car door is pulled, the pull rod rack 6 surface can lift the soft spring sheet 8, so that the soft spring sheet 8 can slip on the pull rod rack 6 surface.

[0026] like Figure 5 , 6 As shown, the hard spring sheet 7 is provided with a strip hole 15 extending along its length direction, and a tongue-shaped spring sheet 14 is provided in the strip hole 15. The tongue-shaped spring sheet 14 is a part of the hard spring sheet 7, and one end of the tongue-shaped spring sheet 14 is connected to the hard spring sheet 7. The tongue-shaped spring sheet 14 is located outside the soft spring sheet 8, and when the soft spring sheet 8 is pushed outward by the pull rod 4, the soft spring sheet 8 will push against the tongue-shaped spring sheet 14.

[0027] The output shaft of the motor 12 is connected to the gear box 11, and a lead screw 10 is arranged in the gear box 11. The end of the lead screw 10 extends out of the gear box 11, and the motor 12 drives the lead screw 10 to rotate through the gear box 11. A lead screw nut 13 is arranged on the hard spring sheet 7, and the lead screw 10 passes through the lead screw nut 13. The hard spring sheet 7 is driven to move back and forth by the action of the lead screw 10 and the lead screw nut 13.

[0028] The working principle is as follows: when opening the door, when it is detected that there are people and vehicles behind the door or obstacles on the side of the door, the two hard spring sheets 7 are clamped toward the pull rod 4 by the motor 12, and the teeth on the soft spring sheet 8 are meshed with the rack 6 of the pull rod 4; at the beginning of the door opening, the pull rod rack 6 and the soft spring sheet 8 slip and make a "click" sound, and at the same time, a certain resistance and vibration will be fed back when the door is opened, and the sound and feel will remind the people getting off the car that there are people and vehicles behind the door or obstacles on the side of the door, so please do not open the door rashly; at this time, the door has been opened to a small angle, and a reminder can be issued to the people in the vehicle behind: the door of the car is about to open, please keep a safe distance from the car. When the people in the car want to continue to open the door, the width of the pull rod 4 gradually widens, and the soft spring sheet 8 is pressed against the hard spring sheet 7. Since the soft spring sheet 8 is harder than the spring sheet, the resistance to opening the door will also increase, so that the people in the car will not easily open the door, thereby ensuring the safety of opening the door. When escaping in an emergency, the door needs to be pushed hard to force the hard spring sheet 7 to bend, so that the door can be opened to escape and prevent being trapped in the car. In addition, the processor evaluates the degree of danger according to the detection results to control the opening of the door: if the danger is high, the motor 12 drives the hard spring sheet 7 to rotate a larger angle, thereby reducing the opening of the door to ensure safety; if the danger is low, the motor 12 drives the hard spring sheet 7 to rotate a smaller angle, thereby increasing the opening of the door. On the one hand, a larger door opening angle can more obviously remind the rear vehicle personnel, and on the other hand, when the door is half-opened to a certain angle, it can also allow the vehicle personnel to get off.

[0029] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A door stopper with an electric damping structure, characterized in that: The invention comprises a mounting bracket, a cover plate, a seat plate, a pressure block, a pull rod, a stopper, a spring sheet and a motor, wherein the mounting bracket is fixed on the vehicle body, one end of the pull rod is hinged to the mounting bracket, and the other end is connected to the stopper, the cover plate and the seat plate are buckled to form a box-shaped body with a cavity inside, and the box-shaped body is fixed on the vehicle door; the pull rod passes through the box-shaped body, and the pressure block comprises an upper pressure block and a lower pressure block, which are respectively located on the upper and lower sides of the pull rod, and the upper pressure block and the lower pressure block are respectively located in corresponding shells, and an elastic element is arranged in the shell, through the elastic element The elastic element pushes the pressure block to press on the upper side or the lower side of the pull rod; the width of the pull rod gradually increases from the end where the mounting bracket is located to the end where the stop block is located; a series of vertical teeth are respectively provided on the front and rear vertical sides of the pull rod to form a rack structure; the spring sheet is located in the box-shaped body surrounded by the cover plate and the seat plate; one end of the spring sheet is hinged to the cover plate or the seat plate, and the other end of the spring sheet is driven by a motor to rotate around the hinge at a certain angle; the spring sheet is provided with teeth matching the rack of the pull rod at a position close to the rack surface of the pull rod.

2. A door stopper with an electric damping structure according to claim 1, characterized in that: The spring sheets are respectively located on both sides of the pull rod, and the spring sheets include soft spring sheets and hard spring sheets, wherein the hardness of the hard spring sheets is greater than that of the soft spring sheets, and the soft spring sheets are located between the hard spring sheets and the pull rod; one end of the hard spring sheet is hinged to the cover plate or the seat plate, and the other end of the hard spring sheet is driven by a motor to rotate around the hinge at a certain angle; one end of the soft spring sheet is fixed on the hard spring sheet, and the other end is tilted and leans against the rack surface of the pull rod; the soft spring sheet is provided with teeth matching the rack of the pull rod at a position close to the rack surface of the pull rod.

3. The door stopper with electric damping structure according to claim 2, characterized in that: The hard spring sheet is provided with a strip hole extending along its length direction, and a tongue-shaped spring sheet is provided in the strip hole. The tongue-shaped spring sheet is a part of the hard spring sheet, and one end of the tongue-shaped spring sheet is connected to the hard spring sheet; the tongue-shaped spring sheet is located outside the soft spring sheet, and when the soft spring sheet is pushed outward by the pull rod, the soft spring sheet will be pushed against the tongue-shaped spring sheet.

4. The door stopper with electric damping structure according to claim 2, characterized in that: The output shaft of the motor is connected to the gear box, a lead screw is arranged in the gear box, the end of the lead screw extends out of the gear box, and the motor drives the lead screw to rotate through the gear box; a lead screw nut is arranged on the hard spring sheet, and the lead screw passes through the lead screw nut, and the hard spring sheet is driven to move back and forth through the action of the lead screw and the lead screw nut.

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