A door check

Abstract

The application discloses a car door limiter and relates to the technical field of automobile accessories.The limiter comprises a limiting box, the limiting box is fixed on a car door, two limiting blocks are movably arranged in the limiting box, an inductive coil is arranged in each limiting block, the magnetic field directions generated by the two inductive coils are opposite, a limiting arm is hingedly connected to a mounting bracket of a car body at one end, the other end of the limiting arm penetrates a horizontal through hole of the limiting box and a limiting hole of the car door in sequence, and the two limiting blocks can clamp the limiting arm; a sensor is arranged on the limiting block and can monitor the position information between the limiting arm and the limiting box; and a control unit is used for receiving the sensor information and controlling the current size in the inductive coil.The car door limiter has a wide optional range of car door opening position through inductive electromagnetic control, can adjust the limiting angle of the car door within the opening limiting range, and improves the quality and safety of the car door opening limiting.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessories, in particular to a door stopper. BACKGROUND

[0002] At present, the door stopper is used to limit the opening degree of the door and keep the door open. The stopper of most cars is mainly composed of a mounting bracket, a limiting arm, a limiting box, a spring and a buffer block. The opening degree position of the door is determined by the clamping force of the limiting block on the limiting arm controlled by the spring in the limiting box through the design of the sliding groove shape of the limiting arm. However, the sliding groove shape of the limiting arm is fixed, and the opening degree position of the door is single, which cannot meet the current situation of multiple positions and multiple working conditions of the door. In addition, in the face of emergency situations such as passing by the side of the vehicle, the door cannot be stopped in time, which has certain safety hazards. SUMMARY

[0003] The purpose of the present application is to provide a door stopper to solve the problems existing in the prior art. The opening degree position of the door can be selected in a wide range through inductive electromagnetic control. The limiting angle position of the door can be adjusted within the opening degree limiting range, which improves the quality and safety of the opening degree limitation of the door.

[0004] To achieve the above purpose, the present application provides the following scheme:

[0005] The present application provides a door stopper, which comprises a limiting box fixed on a door, two limiting blocks movably arranged in the limiting box, an inductive coil arranged in each limiting block, and a limiting arm hingedly connected to a mounting bracket of a vehicle body at one end and sequentially penetrating a horizontal through hole of the limiting box and a limiting hole of the door at the other end. The two limiting blocks can clamp the limiting arm. A sensor is arranged on the limiting block to monitor the position information between the limiting arm and the limiting box. A control unit is used to receive the sensor information and control the current in the inductive coil.

[0006] Optionally, a vertical through hole and a horizontal through hole are formed in the limiting box, and the horizontal through hole penetrates the vertical through hole. The limiting blocks are arranged in the vertical through hole, and the two limiting blocks are respectively located at the upper and lower ends of the horizontal through hole.

[0007] Optionally, a plug hole is formed in the inner wall of the upper and lower ends of the vertical through hole, the diameter of the plug hole is larger than that of the vertical through hole, a plug is arranged in the plug hole, and the limiting block is located between the plug and the horizontal through hole.

[0008] Optionally, the limiting block comprises an outer cylinder, a coaxial inner cylinder is fixedly arranged in the outer cylinder, the outer cylinder and the inner cylinder are closed at one end close to the horizontal through hole, and the other end of the outer cylinder and the inner cylinder is open; the inductive coil is wound between the inner cylinder and the outer cylinder.

[0009] Optionally, a coil hole is formed in the blocking block, and the end of the inductive coil is connected with a power supply after penetrating through the coil hole; the sensor is fixedly arranged at one end of the limiting block close to the horizontal through hole.

[0010] Optionally, the control part comprises an actuator, the actuator is fixedly arranged on one side of the limiting box, the actuator is connected with the inductive coil and can adjust the size of the current in the inductive coil; the actuator is connected with a control unit, and the control unit is connected with the sensor through wireless signals.

[0011] Optionally, a buffer hole is formed in one side of the limiting box and communicates with the vertical through hole, two buffer holes are respectively arranged at the upper and lower ends of the horizontal through hole, a buffer block is arranged in the buffer hole, an arc-shaped groove is formed in the inner side of the buffer block, and the side wall of the limiting block can be in sliding contact with the arc-shaped groove.

[0012] Optionally, the mounting bracket is fixedly arranged on the vehicle body, a hinge hole is formed in the mounting bracket, a hinge shaft is movably arranged in the hinge hole, and one end of the limiting arm is movably arranged on the hinge shaft.

[0013] The present application has the following technical effects relative to the prior art:

[0014] The present application improves the structure and limiting characteristics of the traditional limiter, eliminates abnormal sound in the form of electromagnetic control, realizes adjustable limiting angle, cooperates with the door opening anti-collision early warning system to forcibly limit and improve the door opening safety, realizes the advancing and retreating of the limiting box on the limiting arm in combination with the asynchronous linear motor without changing the structure of the present application, achieves the effect of automatic opening and closing of the door, reduces the development cost, and realizes high-quality intelligent opening and closing of the door. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a structure schematic view of the vehicle door limiter of the present application.

[0017] Figure 2The exploded view of the vehicle door limiter of the present application is shown in the figure.

[0018] Figure 3 The installation view of the limiting box and some parts of the present application is shown in the figure.

[0019] Figure 4 The partial cross-sectional view of the limiting box of the present application is shown in the figure.

[0020] Figure 5 The arrangement view of the limiting block and the induction coil of the present application is shown in the figure.

[0021] The figure legend is as follows: 1-limiting arm; 2-actuator; 3-sensor; 4-buffer block; 5-induction coil; 6-plug; 7-limiting block; 8-mounting bracket; 9-hinge shaft; 10-limiting box. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] The purpose of the present application is to provide a vehicle door limiter to solve the problems in the prior art, and to make the optional range of the opening position of the vehicle door wide by using the inductive electromagnetic control, to adjust the limiting angle of the vehicle door within the opening limiting range, and to improve the quality and safety of the opening limiting of the vehicle door.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0025] The present application provides a vehicle door limiter, which refers to the drawings of Figure 1 , the drawings of Figure 2 , the drawings of Figure 3 , the drawings of Figure 4 and the drawings of Figure 5As shown, including fixed on the door on the limiting box 10, the limiting box 10 is movably provided with two limiting blocks 7, the limiting block 7 is provided with an inductor 5, the magnetic field direction generated by the two inductors 5 is opposite, thereby attracting each other, can drive two limiting blocks 7 to the mutual close direction, the inductor 5 can increase or decrease the number of turns according to the requirement of limiting force, can change the magnetic pole according to the ampere law to change the current direction and coil winding direction; The limiting arm 1 is provided in the limiting box 10, the mounting bracket 8 is fixedly arranged on the vehicle body, the hinge hole is formed on the mounting bracket 8, the hinge shaft 9 is movably provided in the hinge hole, one end of the limiting arm 1 is movably provided on the hinge shaft 9, the other end is sequentially penetrated through the horizontal through hole of the limiting box 10 and the limiting hole of the door, the two limiting blocks 7 are driven by the magnetic field and move towards each other, thereby being able to clamp the limiting arm 1; The sensor 3 is fixedly arranged on the two limiting blocks 7, the slot hole is formed on the end of the limiting block 7 close to the horizontal through hole, the sensor 3 is fixedly arranged in the slot hole, thereby being able to monitor the position information between the limiting arm 1 and the limiting box 10, and send it to the control part, the control part includes the actuator 2, the actuator 2 is fixedly arranged on one side of the limiting box 10, the specific position of the actuator 2 is not limited, the actuator mounting position can be adjusted according to the door panel and accessories, the actuator 2 is connected with the inductor 5, and the size of the current in the inductor 5 can be adjusted; The control unit is connected with the sensor through wireless signal, the control unit of the present application adopts the existing single-chip microcomputer structure, has data receiving and analysis processing function, such as computer, belongs to the prior art, and is not described in detail; The control unit of the control part is used for receiving sensor information, and controlling the current size in the inductor accordingly. The limiting block 7 of the present application is an electromagnetic limiting block, when working, the sensor 3 transmits the relative position information of the limiting box 10 and the limiting arm 1 to the control unit in the form of radio, the control unit analyzes the movement trend and movement rate of the limiting box 10, and transmits the analyzed execution information to the actuator 2 in the form of electric signal, the actuator 2 adjusts the size of the inductive current according to the execution information, the electromagnetic force of the limiting block 7 will increase or decrease with the change of the inductive current, and the limiting arm 1 is clamped by the magnetic field of the limiting block 7 to achieve the effect of limiting the door.

[0026] In order to enable the limiting block 7 to move up and down along the predetermined track smoothly, the limiting box 10 is provided with a vertical through hole, and in order to enable the limiting arm 1 to move through the limiting box 10, the limiting box 10 is provided with a horizontal through hole through which the limiting arm 1 passes, the horizontal through hole passes through the vertical through hole, and preferably, the axis of the horizontal through hole and the axis of the vertical through hole intersect at a point, the limiting block 7 is arranged in the vertical through hole, and the two limiting blocks 7 are respectively located at the upper and lower ends of the horizontal through hole, so that when the two limiting blocks 7 move towards each other, the bottom can abut against the limiting arm 1 in the horizontal through hole, and when the electromagnetic force is large enough, the two limiting blocks 7 can fix and clamp the limiting arm 1, thereby achieving the function of fixing and limiting, and the limiting surface of the limiting arm 1 of the present application is flat, so as to facilitate the limiting block 7 to adjust the limiting, thereby the limiting range of the present application is wider than that of the traditional limiting arm which only has a single limiting position, and the limiting arm can be clamped and limited at any time by controlling the size of the electromagnetic force.

[0027] When the induction coil 5 is not powered, in order to avoid the limiting block 7 from falling, the present application is uniquely provided with a plug block structure, the inner wall at the upper and lower ends of the vertical through hole is provided with a plug block hole, the diameter of the plug block hole is larger than that of the vertical through hole, a plug block 6 is movably connected in the plug block hole, the limiting block 7 is located between the plug block 6 and the horizontal through hole, so that the two ends of the limiting block 7 are limited by the plug block 6, thereby avoiding the limiting block 7 from falling off from the two ends of the vertical through hole; the plug block 6 is provided with a coil hole, and the end of the induction coil 5 passes through the coil hole and is connected with a power supply.

[0028] Further preferably, in order to install and protect the induction coil 5, the limiting block 7 of the present application comprises an outer cylinder, and a coaxial inner cylinder is fixedly arranged in the outer cylinder, the inner cylinder and the outer cylinder can be integrally formed or connected by a fixed connection, one end of the outer cylinder and the inner cylinder close to the horizontal through hole is closed, and the other end of the outer cylinder and the inner cylinder is open; the induction coil 5 is placed between the inner cylinder and the outer cylinder from the open end, so that the inner and outer cylinders can protect the induction coil 5. In order to make the limiting block 7 move up and down more smoothly, the limiting box 10 is provided with a buffer hole communicating with the vertical through hole on one side, the two buffer holes are respectively located at the upper and lower ends of the horizontal through hole, and a buffer block 4 is installed in the buffer hole, an arc-shaped groove is formed in the inner side of the buffer block 4, and the side wall of the limiting block 7 close to the buffer hole can be in sliding contact with the arc-shaped groove, so that when the limiting block moves towards each other under the action of the electromagnetic force, the limiting block is in sliding contact with the arc-shaped groove, and under the action of slight sliding friction, the movement of the limiting block is more stable, and the arc-shaped groove can also play a certain limiting role, thereby avoiding the limiting block from deviating and tilting during movement.

[0029] In the description of the present application, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] The principles and implementation manners of the present application are described by applying specific examples in the present application, and the above description of the examples is only for the purpose of helping to understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application range. In view of the above, the content of the present application should not be understood as a limitation on the present application.

Claims

1. A door check, characterized in that: The application relates to a position-limiting box fixed on a vehicle door, two position-limiting blocks movably arranged in the position-limiting box, two inductive coils arranged in the position-limiting blocks, a position-limiting arm, a sensor, a control unit and an actuator.

2. A vehicle door check according to claim 1, characterised in that: The position-limiting block comprises an outer cylinder, a coaxial inner cylinder fixed in the outer cylinder, and the outer cylinder and the inner cylinder are closed at one end close to the horizontal through hole and are open at the other end.

3. A vehicle door check according to claim 2, characterised in that: A coil hole is arranged on the plug, and the end of the inductive coil is connected with a power supply after penetrating through the coil hole.

4. The door check of claim 1 wherein: The sensor is fixed on one end of the position-limiting block close to the horizontal through hole.

5. The door check of claim 1 wherein: The actuator is fixed on one side of the position-limiting box, is connected with the inductive coil and can adjust the current in the inductive coil. The mounting bracket is fixed on the vehicle body, a hinge hole is arranged on the mounting bracket, a hinge shaft is movably arranged in the hinge hole, and one end of the position-limiting arm is movably arranged on the hinge shaft.

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