A test vehicle door handle release device

Abstract

The application discloses a kind of test vehicle door outer handle unlocking device, including unlocking pull wire, pull wire fixed support, device support and outer handle fixed mechanism;The device support is U-shaped structure, the U-shaped mouth outside of the device support is also equipped with multiple support fixed feet, the support fixed foot is connected with door, for fixing the device support;The pull wire fixed support is set in the back of the U-shaped mouth of the device support, for connecting unlocking pull wire;One end of the unlocking pull wire passes through the device support and is connected with the outer handle fixed mechanism, the other end is connected with unlocking drive motor;The outer handle fixed mechanism is used to connect vehicle door outer handle, for simulating the force point position of vehicle door outer handle.The application realizes to meet actual test demand and simulate actual application scene, help to improve the test quality of product and shorten test cycle, improve the matching accuracy of actual state.

Description

Technical Field

[0001] This invention relates to the field of automobile door outward opening durability testing, and more specifically, to an automobile door outward handle unlocking device for testing. Background Technology

[0002] In conducting outward opening durability tests on automobile doors, it is clearly required that the door be unlocked through the external handle. During the unlocking process, a certain amount of pulling force must be applied. After the door is unlocked, a specific load must be maintained for a specified time. This simulates the load applied to the handle during the door opening phase to drive the door movement, thereby achieving the purpose of assessing the unlocking life of the external door handle and the load-bearing life of pulling the door.

[0003] To meet the above requirements, it is essential to ensure that the relative position of the door handle drive device and the outer handle is fixed, the handle unlocking movement displacement and the door movement angle do not affect the applied load, and that the load magnitude and applied angle do not change. In actual door opening operations, the supporting end of the outer handle remains stationary during unlocking, while pulling the unlocking end results in approximately 20mm of movement. Simultaneously, due to the compression of the door frame rubber strip during door closing, once the door is unlocked, the entire door will be springed open at a certain angle by the compressive force of the rubber strip. All of these factors affect the requirements.

[0004] Therefore, how to provide a stable device that can be set with different loads while remaining unaffected by the external handle unlocking displacement and the door moving angle after unlocking has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a car door handle unlocking device for testing, which can meet actual testing needs and simulate actual application scenarios, thereby helping to improve the testing quality of products, shorten the testing cycle, and improve the accuracy of matching with actual conditions.

[0006] According to a first aspect of the present invention, a test vehicle door exterior handle unlocking device is provided, comprising an unlocking pull wire, a pull wire fixing bracket, a device bracket, and an exterior handle fixing mechanism;

[0007] The device bracket has a U-shaped structure, and multiple bracket fixing feet are provided on the outside of the U-shaped opening of the device bracket. The bracket fixing feet are connected to the vehicle door and are used to fix the device bracket.

[0008] The wire-drawing fixing bracket is located on the back of the U-shaped opening of the device bracket and is used to connect the unlocking wire; one end of the unlocking wire passes through the device bracket and is connected to the outer handle fixing mechanism, and the other end is connected to the unlocking drive motor;

[0009] The external handle fixing mechanism is used to connect the external handle of the car door and to simulate the force application point position of the external handle of the car door.

[0010] Optionally, in the test vehicle door exterior handle unlocking device according to the present invention, the bracket fixing foot includes a base and a magnetic base, the base is connected to the device bracket by screws, and the magnetic base is disposed on the base and magnetically attached to the vehicle door.

[0011] Optionally, in the test vehicle door handle unlocking device of the present invention, the magnetic base is further provided with an adjusting screw, the base is provided with a threaded hole, and the adjusting screw is threadedly connected to the base to adjust the direction of the force between the device bracket and the outer handle.

[0012] Optionally, in the test vehicle door handle unlocking device according to the present invention, the adjusting screw is further provided with a locking nut to lock the relative position between the adjusting screw and the base.

[0013] Optionally, in the test vehicle door handle unlocking device of the present invention, the bent part of the device bracket has an inclined structure, and the inclined structure is provided with a weight-reducing trapezoidal hole.

[0014] Optionally, in the test vehicle door handle unlocking device of the present invention, the connection between the device bracket and the bracket fixing foot is provided with a weight-reducing circular hole, and a weight-reducing groove is also recessed between the weight-reducing circular holes.

[0015] Optionally, in the test vehicle door handle unlocking device of the present invention, the wire-pulling fixing bracket is connected to the back of the U-shaped opening of the device bracket by a connecting bolt, and the wire-pulling fixing bracket is provided with a through hole for the unlocking wire to pass through, and one end of the through hole is provided with an opening extending to the wire-pulling fixing bracket, so that the unlocking wire can be embedded in the through hole along the opening.

[0016] Optionally, in the test vehicle door handle unlocking device according to the present invention, the connection between the device bracket and the wire-drawing fixing bracket is provided with two parallel connecting waist-shaped holes, and the connecting bolts are respectively connected in the connecting waist-shaped holes to adjust the position of the wire-drawing fixing bracket through the connecting waist-shaped holes.

[0017] Optionally, in the test vehicle door handle unlocking device according to the present invention, a wire-drawing wire-drawing hole is further provided between the two connecting waist-shaped holes. The wire-drawing wire-drawing hole is parallel to the connecting waist-shaped holes, and the wire-drawing wire-drawing hole is used to adjust the position of the unlocking wire.

[0018] Optionally, according to the test vehicle door exterior handle unlocking device of the present invention, the exterior handle fixing mechanism includes an upper fixing block and a lower fixing block, the upper fixing block and the lower fixing block are connected by screws, and the mating surfaces of the two are provided with fixing grooves, the fixing grooves being used to embed the exterior handle;

[0019] The top of the upper fixing block is also provided with a connector round hole, and one end of the unlocking wire is provided with a flexible shaft, which is embedded in the connector round hole.

[0020] The beneficial effects of the technical solution of this invention are as follows:

[0021] (1) The present invention solves the problem of accurately applying the unlocking load to the car door handle, while the mass of the device itself does not affect the weight of the door, thus ensuring the accuracy of the test and the convenience of assembly.

[0022] (2) The present invention solves the problem of precisely controlling the load time applied to the outward-opening handle, which is more in line with various conditions and test conditions;

[0023] (3) The present invention can accurately measure the unlocking stroke or displacement of the external handle during the unlocking process, which solves the pain point that the displacement cannot be effectively measured and the test process cannot be monitored in real time during such operations, improves the verification capability, and ensures the accuracy of the test.

[0024] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0026] Figure 1 This is a schematic diagram of the structure of the automobile door exterior handle unlocking device disclosed in this invention;

[0027] Figure 2 This is a schematic diagram of the structure of the device support disclosed in this invention;

[0028] Figure 3 This is a schematic diagram of the structure of the bracket fixing foot disclosed in this invention;

[0029] Figure 4 This is a schematic diagram of the external handle fixing mechanism disclosed in this invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Unlock the wire drawing process;

[0032] 2-Wire drawing fixing bracket; 21-Opening;

[0033] 3-Device support; 31-Weight-reducing trapezoidal hole; 32-Weight-reducing circular hole; 33-Weight-reducing groove; 34-Connecting waist-shaped hole; 35-Wire drawing waist-shaped hole;

[0034] 4-Bracket fixing foot; 41-Base; 42-Magnetic base; 43-Adjusting screw; 44-Locking nut;

[0035] 5-External handle fixing mechanism; 51-Upper fixing block; 52-Lower fixing block; 53-Fixing groove; 54-Connector round hole. Detailed Implementation

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0037] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0039] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0041] according to Figures 1 to 4 As shown, the present invention provides a test vehicle door exterior handle unlocking device, including an unlocking pull wire 1, a pull wire fixing bracket 2, a device bracket 3, and an exterior handle fixing mechanism 5.

[0042] The device bracket 3 is a U-shaped structure made of a single piece of aluminum, characterized by high strength and light weight. Multiple bracket fixing feet 4 are also provided on the outer side of the U-shaped opening of the device bracket 3. These fixing feet 4 connect to the vehicle door and are used to secure the device bracket 3.

[0043] The wire-drawing fixing bracket 2 is located on the back of the U-shaped opening of the device bracket 3 and is used to connect the unlocking wire 1. One end of the unlocking wire 1 passes through the device bracket 3 and is connected to the outer handle fixing mechanism 5, while the other end is connected to the unlocking drive motor. The unlocking wire 1 mainly consists of an internal rigid flexible shaft and an external plastic sheath. One end is connected to the drive motor that applies the load, and the other end is connected to the outer handle fixing mechanism 5. At the same time, the flexible shafts at both ends are fixed to the sheath using the wire-drawing fixing bracket 2 in the same way, thereby enabling the driven wire to exert force and move the driven component.

[0044] The outer handle fixing mechanism 5 is used to connect the outer handle of the car door and to simulate the force application point position of the outer handle of the car door.

[0045] Furthermore, the bracket fixing foot 4 includes a base 41 and a magnetic base 42. The base 41 is connected to the device bracket 3 by screws, and the magnetic base 42 is set on the base 41 and can be directly attached to any position on the door.

[0046] Furthermore, the magnetic base 42 is equipped with an adjusting screw 43, and the base 41 has a threaded hole. The adjusting screw 43 is threadedly connected to the base 41 to adjust the direction of the force between the device bracket 3 and the outer handle. The adjusting screw 43 is a threaded rod of a suitable size, and it is spherically connected to the magnetic base 42 for easy adjustment of the angle between them. The base 41 has an arched structure, with a threaded section in the middle to cooperate with the adjusting screw 43, enabling adjustment of the height of a single foot, and is connected to the device bracket 3 using screws.

[0047] Furthermore, a locking nut 44 is provided on the adjusting screw 43 to lock the relative position between the adjusting screw 43 and the base 41.

[0048] Furthermore, to ensure that its weight is within the error range of the entire car door weight and thus does not affect the test quality requirements, the bending part of the device bracket 3 is a sloping structure, and a weight-reducing trapezoidal hole 31 is provided on the sloping structure. The connection between the device bracket 3 and the bracket fixing foot 4 is provided with a weight-reducing circular hole 32, and a weight-reducing groove 33 is also recessed between the weight-reducing circular holes 32.

[0049] Furthermore, the back of the U-shaped opening of the wire-drawing fixing bracket 2 and the device bracket 3 are connected by connecting bolts, and the wire-drawing fixing bracket 2 is provided with a through hole for the unlocking wire 1 to pass through, and one end of the through hole is provided with an opening 21 extending to the wire-drawing fixing bracket 2, so that the unlocking wire 1 can be embedded into the through hole along the opening 21, which helps to disassemble and assemble the unlocking wire 1 and the wire-drawing fixing bracket 2.

[0050] Furthermore, the connection between the device bracket 3 and the wire drawing fixing bracket 2 is provided with two parallel connecting waist-shaped holes 34, and the connecting bolts are respectively connected in the connecting waist-shaped holes 34 to adjust the position of the wire drawing fixing bracket 2 through the connecting waist-shaped holes 34.

[0051] The wire-drawing waist-shaped hole 35 and the connecting waist-shaped hole 34 are parallel to each other, and the wire-drawing waist-shaped hole 35 is used to adjust the position of the unlocking wire 1. In practice, when the bracket fixing foot 4 is attached to the car door, in order to reduce the tilt angle at the connection between the outer handle fixing mechanism 5 and the outer handle of the car door, the position of the outer handle fixing mechanism 5 can be adjusted by moving the connecting waist-shaped hole 34 and the wire-drawing waist-shaped hole 35.

[0052] Furthermore, the outer handle fixing mechanism 5 includes an upper fixing block 51 and a lower fixing block 52, which are connected by screws, and the mating surfaces of the two are provided with fixing grooves 53 for embedding the outer handle; the top of the upper fixing block 51 is also provided with a connector round hole 54, and one end of the unlocking pull wire 1 is provided with a flexible shaft, which is embedded in the connector round hole 54.

[0053] The unlocking device addresses and resolves issues in the existing solution by adjusting the following sequence and methods to ensure its effectiveness.

[0054] Step 1: Install the outer handlebar fixing mechanism 5. Mark the point of force application on the outer handlebar. With the upper fixing block 51 of the outer handlebar fixing mechanism 5 facing the outside of the vehicle and the center of the joint hole 54 aligned with the point of force application, tighten and fix it to the lower fixing block 52 with bolts.

[0055] Step 2: Installation of device bracket 3. Ensure that the upper surface of device bracket 3 is perpendicular to the direction of movement of the outer door handle at 90 degrees. To ensure verticality, the height of the four bracket fixing feet 4 can be adjusted by adjusting screw 43 to ensure verticality. The middle part of the wire-pulling waist-shaped hole 35, through the middle part of the unlocking wire-pulling 1 through hole, should be adjusted to the center of the joint round hole 54 of the outer handle fixing bracket.

[0056] Step 3: Install the unlocking wire puller 1. Connect the end of the wire puller shaft to the round hole 54 of the connector, and then connect the end of the wire puller sleeve to the wire puller fixing bracket 2. If the wire puller is already at its maximum stroke position, adjust each adjusting screw 43 to the same height to ensure that the device bracket 3 is lowered as a whole, shortening the wire puller stroke while maintaining verticality, ensuring that the wire puller's movement stroke meets the unlocking stroke requirements.

[0057] Step 4: Adjust the unlocking function. Connect the other end of the unlocking pull wire 1 to the dedicated unlocking motor and its device. Adjust the motor to rotate forward and backward according to the required load and speed, so as to drive the pull wire to unlock and return the door handle to its original position.

[0058] Completing the above steps ensures the correct adjustment of the door handle unlocking device.

[0059] In this invention, a magnetic base 42 is used to achieve faster and more convenient fixation to the car door (if the car door is not ferrous, a magnetic base of opposite polarity can be attached to the back of the plate). The direction and axial distance of the device bracket 3 are adjusted by using a spherical connection between the adjusting screw 43 and the magnetic base 42, and by using four adjusting screws 43. The door handle is unlocked by a drive wire pulling mechanism, solving the problem of inaccurate control over the magnitude and duration of the applied load. This also makes it easier to simulate real-world customer usage scenarios. Furthermore, the use of aluminum material ensures that its weight does not affect the test quality. All the above processes and measures guarantee the accuracy of the test; at the same time, the device design has strong expandability and can also meet the operational testing and experimentation requirements of existing similar handles, enhancing the application scope and practical value of the device.

[0060] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A test vehicle door exterior handle unlocking device, characterized in that, This includes unlocking wire drawing, wire drawing fixing bracket, device bracket, and external handle fixing mechanism; The device bracket has a U-shaped structure, and multiple bracket fixing feet are provided on the outside of the U-shaped opening of the device bracket. The bracket fixing feet are connected to the vehicle door and are used to fix the device bracket. The wire-drawing fixing bracket is located on the back of the U-shaped opening of the device bracket and is used to connect the unlocking wire; one end of the unlocking wire passes through the device bracket and is connected to the outer handle fixing mechanism, and the other end is connected to the unlocking drive motor; The external handle fixing mechanism is used to connect the external handle of the car door and to simulate the force application point position of the external handle of the car door; The wire-drawing fixing bracket is connected to the back of the U-shaped opening of the device bracket by a connecting bolt. The wire-drawing fixing bracket is provided with a through hole for the unlocking wire to pass through, and one end of the through hole is provided with an opening extending to the wire-drawing fixing bracket, so that the unlocking wire can be embedded into the through hole along the opening. The connection between the device bracket and the wire drawing fixing bracket is provided with two parallel connecting waist-shaped holes. The connecting bolts are respectively connected in the connecting waist-shaped holes so as to adjust the position of the wire drawing fixing bracket through the connecting waist-shaped holes. A wire-drawing ...

2. The vehicle door exterior handle unlocking device for testing according to claim 1, characterized in that, The bracket fixing foot includes a base and a magnetic base. The base is connected to the device bracket by screws, and the magnetic base is disposed on the base and magnetically attached to the car door.

3. The vehicle door exterior handle unlocking device for testing according to claim 2, characterized in that, The magnetic base is also provided with an adjusting screw, and the base is provided with a threaded hole. The adjusting screw is threadedly connected to the base to adjust the direction of the force between the device bracket and the outer handle.

4. The vehicle door exterior handle unlocking device for testing according to claim 3, characterized in that, The adjusting screw is also provided with a locking nut to lock the relative position between the adjusting screw and the base.

5. The vehicle door exterior handle unlocking device for testing according to claim 1, characterized in that, The bending section of the device support has an inclined structure, and the inclined structure is provided with a weight-reducing trapezoidal hole.

6. The vehicle door exterior handle unlocking device for testing according to claim 5, characterized in that, The connection between the device bracket and the bracket fixing foot is provided with a weight-reducing circular hole, and a weight-reducing groove is also recessed between the weight-reducing circular holes.

7. The vehicle door exterior handle unlocking device for testing according to claim 1, characterized in that, The external handle fixing mechanism includes an upper fixing block and a lower fixing block, which are connected by screws, and the mating surfaces of the two are provided with fixing grooves for embedding the external handle. The top of the upper fixing block is also provided with a connector round hole, and one end of the unlocking wire is provided with a flexible shaft, which is embedded in the connector round hole.

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