Auxiliary device for strength testing of motorcycle helmets

Abstract

The invention discloses an auxiliary device for detecting the strength of a motorcycle helmet, comprising: a guide rail, a lifting mechanism, a connecting frame and a collision rod; wherein, when the electromagnet is energized, the connecting frame and the electromagnet are mutually attracted and move upward synchronously with the lifting frame, and when the electromagnet is powered off, the connecting frame is separated from the electromagnet and freely falls along the guide rail; the accuracy of the detection height position of the helmet is ensured by the positioning and lifting of the lifting mechanism, and the free fall of the helmet is realized by the cooperation of the electromagnet and the connecting frame to complete the detection, which is fast, efficient and high in precision.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to an auxiliary device for detecting the strength of a motorcycle helmet. Background Art

[0002] For motorcycle driving, safety is one of the most important indicators, especially the helmet worn by the rider, which needs to protect the most important part of the human body, the head. Motorcycle helmets need to be strong enough to effectively protect the rider's head in a collision. Therefore, how to detect the strength of motorcycle helmets is an important topic in this field. A common detection method is to place a monitor in the helmet, let the helmet fall freely from a high place, and then feedback relevant data through the monitor to complete the detection; but before the detection, the helmet needs to be brought to a high place. If manual operation is used, not only the height position is inaccurate, but the falling point of the helmet will also be offset, resulting in inaccurate detection data, low efficiency, and inconvenient detection. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an auxiliary device for motorcycle helmet strength detection, which can improve detection efficiency.

[0004] According to the first aspect of the present invention, an auxiliary device for detecting the strength of a motorcycle helmet comprises: a guide rail arranged in the longitudinal direction; a lifting mechanism movably mounted on the guide rail, comprising a lifting frame, a motor, and an electromagnet, wherein the motor drives the lifting frame to move up and down on the guide rail, and the electromagnet is fixedly mounted on the lifting frame; a connecting frame made of magnetic metal material, movably mounted on the guide rail and below the lifting frame, wherein when the electromagnet is energized, the connecting frame and the electromagnet are mutually attracted and move up and down synchronously with the lifting frame, and when the electromagnet is de-energized, the connecting frame is separated from the electromagnet and freely falls along the guide rail; a supporting frame fixedly connected to the front of the connecting frame, moves up and down synchronously with the connecting frame, and a supporting member is provided on the supporting frame; a collision rod mounted below the descending path of the supporting frame, and the collision head of the collision rod is arranged upward.

[0005] The auxiliary device for motorcycle helmet strength testing according to the embodiment of the present invention has at least the following beneficial effects: the accuracy of the detection height position of the helmet is ensured by positioning and lifting the lifting mechanism, and the free fall of the helmet is achieved by the cooperation of the electromagnet and the connecting frame to complete the detection quickly, efficiently and with high precision.

[0006] According to some embodiments of the present invention, the collision head is a flat head or a pointed head.

[0007] According to some embodiments of the present invention, the support frame is provided with a plurality of horizontal first installation positions and a plurality of inclined second installation positions, and the support member is installed at the first installation position or the second installation position.

[0008] According to some embodiments of the present invention, the support member includes a support head and an adjusting screw, and the adjusting screw is connected to the first installation position or the second installation position.

[0009] According to some embodiments of the present invention, the support head is spherical.

[0010] According to some embodiments of the present invention, a sponge layer is provided at the end point of the descending path of the connecting frame, and the highest point of the sponge layer is located at a height lower than that of the collision head.

[0011] According to some embodiments of the present invention, a baffle is provided in front of the lifting path of the support frame.

[0012] According to some embodiments of the present invention, an electric lock is provided between the lifting frame and the connecting frame.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the free fall of the connecting frame of the present invention;

[0017] Figure 3 It is a schematic structural diagram of an embodiment of a collision rod of the present invention;

[0018] Figure 4 It is a schematic structural diagram of another embodiment of the collision rod of the present invention;

[0019] Figure 5 is a schematic diagram of the support frame mechanism of the present invention;

[0020] Figure 6 The present invention Figure 5 A partial enlarged schematic diagram of . DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Reference Figure 1 and Figure 2 , an auxiliary device for testing the strength of a motorcycle helmet, comprising: a guide rail 100, arranged in the longitudinal direction; a lifting mechanism, movably mounted on the guide rail 100, comprising a lifting frame 210, a motor 220, and an electromagnet 230, wherein the motor 220 drives the lifting frame 210 to move up and down on the guide rail 100, and the electromagnet 230 is fixedly mounted on the lifting frame 210; a connecting frame 300, made of a magnetic metal material, movably mounted on the guide rail 100 and below the lifting frame 210, wherein when the electromagnet 230 is energized The connecting frame 300 and the electromagnet 230 are attracted to each other and move upward synchronously with the lifting frame 210. When the electromagnet 230 is powered off, the connecting frame 300 is separated from the electromagnet 230 and falls freely along the guide rail 100; the support frame 400 is fixedly connected to the front of the connecting frame 300 and moves upward and downward synchronously with the connecting frame 300. A support member 410 is provided on the support frame 400; a collision rod 500 is installed below the descending path of the support frame 400, and the collision head 510 of the collision rod 500 is set upward.

[0023] Initially, the connecting frame 300 is located at the bottom of the guide rail 100, the external wireless monitor is installed in the helmet to be tested, and then the helmet is placed on the support member 410 of the support frame 400; then the lifting mechanism is started, the motor 220 drives the lifting frame 210 to move down along the guide rail 100 to the connecting frame 300, the electromagnet 230 is started, the electromagnet 230 magnetically attracts the connecting frame 300, and the motor 220 drives the lifting frame 210 and the connecting frame 300 to rise along the guide rail 100, and rise to a distance according to the test requirements. After reaching a certain height from the collision head 510 of the collision rod 500, the helmet stops rising. At this time, the helmet is raised to a certain specific height; then the electromagnet 230 is turned off and demagnetized. After the connecting frame 300 loses the magnetic attraction of the electromagnet 230, it falls in a free fall along the guide rail 100. At the same time, the helmet also falls in a free fall. When the helmet falls freely to the collision rod 500, it collides with the collision head 510. The wireless monitor in the helmet obtains the relevant collision detection data of the helmet, thereby completing the collision detection experiment. The auxiliary device for the strength detection of motorcycle helmets of the present invention ensures the accuracy of the detection height position of the helmet through the positioning and lifting of the lifting mechanism, and utilizes the cooperation of the electromagnet 230 and the connecting frame 300 to realize the free fall of the helmet to complete the detection, which is fast, efficient and high in precision.

[0024] Reference Figure 3 and Figure 4 In some specific embodiments of the present invention, the collision head 510 is a flat head or a pointed head; by replacing the collision head 510 with a flat head or a pointed head, different collision environments are simulated to meet different detection requirements.

[0025] Reference Figure 5 and Figure 6 In some specific embodiments of the present invention, the support frame 400 is provided with a plurality of first mounting positions 420 in a horizontal direction and a plurality of second mounting positions 430 in an inclined direction, and the support member 410 is installed on the first mounting position 420 or the second mounting position 430; as shown in the figure, the support frame 400 has horizontal connecting rods on both sides, and the first mounting position 420 and the second mounting position 430 are distributed at intervals on the same horizontal connecting rod, and the position of the support member 410 is changed by the first mounting position 420 and the second mounting position 430 to meet the support of different helmets; in addition, when the support member 410 is installed on the first mounting position 420, it is in a vertical direction, and when the support member 410 is installed on the second mounting position 430, it is in an inclined direction, thereby changing the support angle of the support member 410, and then changing the angle or position of the helmet when it is placed on the support frame 400.

[0026] In some embodiments of the present invention, the support member 410 includes a support head 411 and an adjusting screw 412, and the adjusting screw 412 is connected to the first mounting position 420 or the second mounting position 430; the support member 410 is detachably installed on the first mounting position 420 or the second mounting position 430 using the adjusting screw 412, which is convenient for disassembly and assembly.

[0027] In some specific embodiments of the present invention, the support head 411 is spherical, and the spherical support head 411 can ensure that it can contact and support different positions on the helmet.

[0028] Reference Figure 1 and Figure 2 In a further embodiment of the present invention, a sponge layer 800 is provided at the end point of the descending path of the connecting frame 300, and the highest point of the sponge layer 800 is located at a height lower than that of the collision head 510; when the connecting frame 300 freely falls and is about to reach the end point of the descending path, the sponge layer 800 is used to buffer the connecting frame 300 to avoid collision between the connecting frame 300 and the ground.

[0029] Reference Figure 1 and Figure 2In some embodiments of the present invention, a baffle 600 is provided in front of the lifting path of the support frame 400; when the free fall of the helmet collides with the collision head 510, the helmet will fly forward, and the baffle 600 is arranged on the flying path after the collision of the helmet, and the baffle 600 is used to block the helmet to play a safety protection role.

[0030] In some embodiments of the present invention, an electric lock 700 is provided between the lifting frame 210 and the connecting frame 300; the electric lock 700 can use an existing lock, and the extension and retraction of its lock tongue can be controlled by whether it is energized or not; when working, when the electromagnet 230 is started to magnetically attract the connecting frame 300, the electric lock 700 is started at the same time, and its lock tongue is extended, and the lock tongue is stuck on the connecting frame 300, and the electric lock 700 locks the connecting frame 300 under the lifting frame 210 to ensure that the connecting frame 300 can stably rise with the lifting frame 210 during the lifting process of the lifting frame 210; when the electric lock 700 and the electromagnet 230 stop working, the connecting frame 300 is separated from the lifting frame 210 and falls freely.

[0031] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An auxiliary device for testing the strength of a motorcycle helmet, characterized in that: include: A guide rail (100) is arranged in the longitudinal direction; a lifting mechanism, movably mounted on the guide rail (100), comprising a lifting frame (210), a motor (220), and an electromagnet (230), wherein the motor (220) drives the lifting frame (210) to move up and down on the guide rail (100), and the electromagnet (230) is fixedly mounted on the lifting frame (210); The connecting frame (300) is made of a magnetic metal material and is movably mounted on the guide rail (100) and below the lifting frame (210), wherein when the electromagnet (230) is powered on, the connecting frame (300) and the electromagnet (230) are mutually attracted and move upward synchronously with the lifting frame (210); when the electromagnet (230) is powered off, the connecting frame (300) is separated from the electromagnet (230) and freely falls along the guide rail (100); A support frame (400) is fixedly connected to the front of the connecting frame (300) and moves synchronously with the connecting frame (300); a support member (410) is provided on the support frame (400); A collision rod (500) is installed below the descending path of the support frame (400), and a collision head (510) of the collision rod (500) is arranged upward; The support frame (400) is provided with a plurality of horizontally oriented first mounting positions (420) and a plurality of obliquely oriented second mounting positions (430), and the support member (410) is mounted on the first mounting position (420) or the second mounting position (430); Both sides of the support frame (400) are horizontal connecting rods, and the first installation position (420) and the second installation position (430) on the same horizontal connecting rod are distributed at intervals; The support member (410) comprises a support head (411) and an adjusting screw (412), and the adjusting screw (412) is connected to the first installation position (420) or the second installation position (430); The helmet is placed on the support member (410) of the support frame (400); A baffle (600) is provided in front of the lifting path of the support frame (400); When the free-falling helmet collides with the collision head (510), the helmet will fly forward, and the baffle (600) is arranged on the flying path of the helmet after the collision.

2. The auxiliary device for motorcycle helmet strength testing according to claim 1, characterized in that: The collision head (510) is a flat head or a pointed head.

3. The auxiliary device for motorcycle helmet strength testing according to claim 1, characterized in that: The support head (411) is spherical.

4. The auxiliary device for motorcycle helmet strength testing according to claim 1, characterized in that: A sponge layer (800) is provided at the end point of the descending path of the connecting frame (300), and the highest point of the sponge layer (800) is located at a height lower than that of the collision head (510).

5. The auxiliary device for motorcycle helmet strength testing according to claim 1, characterized in that: An electric lock (700) is provided between the lifting frame (210) and the connecting frame (300).

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