A motorcycle helmet processing rigidity detection device

Abstract

This utility model relates to the field of motorcycle helmet processing technology and discloses a robustness testing device for motorcycle helmet processing. It includes a processing table, with adjustment components on both sides of the processing table and a mounting frame between the adjustment components. An electromagnet is fixedly installed at the center of the bottom of the mounting frame, and a gravity block is magnetically attracted to the bottom of the electromagnet. A helmet fixing component is also provided at the center of the top of the processing table, and a protective component is also provided on the processing table. The adjustment components include support frames fixedly installed on both sides of the processing table, with threaded sleeves rotatably installed on the inner walls of both support frames. This utility model uses a motor in the adjustment components to drive a lead screw to rotate, causing the threaded sleeves and mounting frames to rise and fall. Combined with the scale on the front of the support frame, the height of the gravity block can be precisely adjusted, effectively solving the problem of the non-adjustable gravity block height in traditional devices. This device can meet the needs of different helmet types, testing standards, or experimental requirements.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle helmet processing technology, specifically a robustness testing device for motorcycle helmet processing. Background Technology

[0002] As a core protective device for riders' head safety, the robustness of a motorcycle helmet directly determines its protective effect in collision and impact scenarios. Therefore, during the manufacturing process, it is necessary to verify the helmet shell's impact resistance and deformation resistance through professional testing equipment.

[0003] However, existing detection devices have the following significant drawbacks in practical applications, which seriously affect the reliability of detection results and operational safety:

[0004] 1. The height of the gravity block is not adjustable: Traditional testing devices use a fixed gravity block installation structure, and the falling height is determined by a preset mechanical limit or fixed bracket. It is impossible to flexibly adjust the impact height according to different helmet types, testing standards or experimental requirements.

[0005] 2. Poor stability of helmet fixing structure: Existing devices usually rely on simple clamps or flat pressure plates to fix helmets. Their clamping force is unevenly distributed and lacks adaptive adjustment function. They cannot adapt to helmets with different head circumferences and shapes. They are prone to displacement during testing, which affects the reliability of the test results.

[0006] 3. Lack of protective structure: In the impact test of the high-speed falling of the gravity block, if the helmet breaks due to failure of fixation or overload of impact force, its fragments will fly in all directions at high speed. Most existing devices do not have a protective structure and rely only on the open operating table for testing, which may cause the flying fragments to directly injure the operator or damage the surrounding instruments.

[0007] No effective solutions have yet been proposed to address the problems in the relevant technologies.

[0008] Therefore, in order to solve the above problems, this utility model provides a robustness testing device for motorcycle helmet processing. Utility Model Content

[0009] The purpose of this invention is to provide a robustness testing device for motorcycle helmet manufacturing, in order to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a robustness testing device for motorcycle helmet processing, comprising a processing table, adjustment components on both sides of the processing table, a mounting frame between the adjustment components, an electromagnet fixedly mounted at the center of the bottom end of the mounting frame, a gravity block magnetically attracted to the bottom end of the electromagnet, a helmet fixing component also provided at the center of the top end of the processing table, and a protective component also provided on the processing table; the adjustment components include support frames fixedly mounted on both sides of the processing table, threaded sleeves rotatably mounted on the inner walls of both support frames, threaded rods threadedly connected to the outer walls of both threaded sleeves, and both ends of the mounting frame fixedly connected to the surfaces of adjacent threaded rods; the helmet fixing component includes a head model fixedly mounted at the center of the top end of the processing table, multiple sets of tension springs symmetrically embedded in the outer wall of the head model, and a protective plate fixedly mounted at one end of each of two adjacent tension springs; the protective component includes a protective net provided at the bottom of the processing table, and a mounting plate fixedly mounted on the inner wall of the protective net.

[0011] Preferably, the adjustment assembly further includes motors fixedly installed at the top of the two support frames, the output ends of the two motors passing through the support frames and fixedly connected to the middle of the top of the corresponding lead screw, and the outer walls of the two threaded sleeves slidingly connected to the inner walls of the adjacent support frames.

[0012] Preferably, one of the support frames has a scale engraved on its front side for determining the height.

[0013] Preferably, a through groove is provided at the edge of the top of the processing table, and the outer wall of the mounting plate movably passes through the inner wall of the through groove.

[0014] Preferably, the mounting plate is made of stainless steel woven mesh.

[0015] Preferably, support columns are fixedly installed at all four corners of the processing table, and a base plate is fixedly installed on the bottom of the adjacent side of the four support columns.

[0016] Preferably, a hydraulic push rod is fixedly installed at the middle of the bottom end of the base plate, and the output end of the hydraulic push rod passes through the base plate and is fixedly connected to the middle of the bottom end of the protective net.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model adjusts the height of the gravity block by rotating the lead screw driven by the motor in the adjustment component, which in turn drives the threaded sleeve and the mounting bracket to rise and fall. Combined with the scale on the front of the support frame, the height of the gravity block can be precisely adjusted, which effectively solves the problem of the gravity block height not being adjustable in traditional devices and can meet the needs of different helmet types, testing standards or experiments.

[0019] 2. In this utility model, the helmet fixing component utilizes multiple sets of tension springs and protective plates embedded in the head model. The tension springs provide uniform and adaptively adjustable clamping force, which can effectively adapt to helmets with different head circumferences and shapes, enhance fixing stability, prevent helmet displacement during testing, and improve the reliability of test results.

[0020] 3. The stainless steel woven mesh protective net in the protective component of this utility model can be driven by a hydraulic push rod to rise and fall along the through groove of the processing table, forming a closed protection on all sides during testing, effectively blocking helmet fragments from flying and gravity blocks from rebounding, ensuring the safety of operators and preventing damage to surrounding instruments, and effectively solving the problem of the lack of protective structure in existing devices. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of the puncture test device for motorcycle helmet processing provided by this utility model;

[0022] Figure 2 This utility model provides a structural schematic diagram of the helmet fixing assembly;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] Figure 4 This utility model provides a structural schematic diagram of the adjustment component and the gravity block.

[0025] In the diagram: 1. Processing table; 2. Helmet fixing assembly; 21. Head model; 22. Tension spring; 23. Protective plate; 3. Adjustment assembly; 31. Support frame; 32. Lead screw; 33. Threaded sleeve; 34. Motor; 4. Mounting bracket; 5. Electromagnet; 6. Gravity block; 7. Protective assembly; 71. Mounting plate; 72. Protective net; 8. Base plate; 9. Hydraulic push rod; 10. Support column; 11. Through slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4As shown, a robustness testing device for motorcycle helmet processing includes a processing table 1. Adjustment components 3 are arranged on both sides of the processing table 1, and a mounting frame 4 is arranged between the adjustment components 3. An electromagnet 5 is fixedly installed at the center of the bottom end of the mounting frame 4, and a gravity block 6 is magnetically attracted to the bottom end of the electromagnet 5. A helmet fixing component 2 is also arranged at the center of the top end of the processing table 1, and a protective component 7 is also arranged on the processing table 1. The electromagnet 5 enables magnetic attraction of the gravity block 6, and the installation and removal of the gravity block 6 is simple and convenient, effectively improving testing efficiency. The adjustment components 3 include support frames 31 fixedly installed on both sides of the processing table 1. Threaded sleeves 33 are rotatably installed on the inner walls of both support frames 31, and screw rods 32 are threadedly connected to the outer walls of both threaded sleeves 33. Both ends of the mounting frame 4 are fixedly connected to the surface of the adjacent screw rods 32. The rotary motion can be converted into linear motion, which can drive the corresponding threaded sleeve 33 to rise and fall vertically while driving the mounting frame 4 to rise and fall synchronously, thereby achieving the function of adjusting the height of the gravity block 6. The helmet fixing component 2 includes a head model 21 fixedly installed at the top center of the processing table 1. Multiple sets of tension springs 22 are symmetrically embedded in the outer wall of the head model 21, and a protective plate 23 is fixedly installed at one end of each of the two adjacent tension springs 22. The protective component 7 includes a protective net 72 set at the bottom of the processing table 1. A mounting plate 71 is fixedly installed on the inner wall of the protective net 72. When the mounting plate 71 is raised to the top, it can form a protective barrier around the detection area to block the flying of fragments and the rebound of the gravity block 6, ensuring operational safety. The overall structure takes into account the flexibility of adjustment, the stability of fixation and the reliability of protection, and is fully adaptable to the helmet robustness testing scenario.

[0028] Please see Figure 3 The adjustment assembly 3 also includes motors 34 fixedly installed on the top of the two support frames 31. The output ends of the two motors 34 pass through the support frame 31 and are fixedly connected to the middle of the top of the corresponding lead screw 32. The outer walls of the two threaded sleeves 33 are slidably connected to the inner walls of the adjacent support frames 31. One of the support frames 31 has a scale for determining the height engraved on its front. The motors 34 can replace the traditional manual adjustment method to realize the automatic lifting and lowering of the mounting frame 4. The scale allows the operator to intuitively read the real-time height of the gravity block 6, accurately control the adjustment accuracy, and meet the stringent requirements of different test standards for impact height.

[0029] Please see Figure 4 The edge of the top of the processing table 1 is provided with a through groove 11. The outer wall of the mounting plate 71 is connected to the inner wall of the through groove 11. The mounting plate 71 is made of stainless steel woven mesh. Stainless steel woven mesh has high impact resistance and can withstand the impact of helmet fragments and the rebound of gravity block 6 without being damaged. It also has rust resistance, is suitable for dusty and humid environments in the workshop, and extends its service life. Compared with traditional protective materials, it is more suitable for the needs of testing scenarios.

[0030] Please see Figure 1 and Figure 4 Each of the four corners of the processing table 1 is fixedly equipped with a support column 10. A base plate 8 is fixedly installed on the bottom of the adjacent side of the four support columns 10. A hydraulic push rod 9 is fixedly installed in the middle of the bottom end of the base plate 8. The output end of the hydraulic push rod 9 passes through the base plate 8 and is fixedly connected to the middle of the bottom end of the protective net 72. The hydraulic push rod 9 can drive the protective component 7 to rise and fall vertically. It rises during inspection to form a closed protection and falls down after inspection to facilitate the removal and placement of the helmet. There is no need to disassemble the protective components, which greatly simplifies the operation process.

[0031] Working principle: The helmet to be tested is placed on the head model 21 of the helmet fixing assembly 2. Multiple sets of tension springs 22 symmetrically embedded in the head model 21 exert force on the protective plate 23, causing the protective plate 23 to adhere to the helmet from both sides. The clamping force generated by the elastic deformation of the tension springs 22 secures the helmet. The adjusting assembly 3 adjusts the falling height of the gravity block 6. After the two motors 34 start synchronously, they drive the connected lead screw 32 to rotate. Since the lead screw 32 is threadedly connected to the threaded sleeve 33, and the threaded sleeve 33 is fixed at both ends of the mounting frame 4, when the lead screw 32 rotates, the threaded sleeve 33 drives the mounting frame 4 to move up and down along the inner wall of the support frame 31, thereby changing the height position of the electromagnet 5 at the bottom of the mounting frame 4, thus achieving... The adjustable drop height of gravity block 6 meets different testing requirements. In addition, the scale on the front of the support frame 31 can help the operator accurately determine the drop height of gravity block 6. Before testing, the hydraulic push rod 9 drives the mounting plate 71 to rise, which in turn drives the protective net 72 through the through slot 11 to surround the processing table 1, forming a ring-shaped protective structure. After gravity block 6 is attracted to the specified height by electromagnet 5, electromagnet 5 is de-energized and loses its magnetism. Gravity block 6 falls freely under the action of gravity, impacting the helmet worn on the head model 21, simulating the impact that the helmet may be subjected to during actual riding, thereby testing the impact resistance and deformation resistance of the helmet shell.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robustness testing device for motorcycle helmet processing, comprising a processing table (1), characterized in that: Adjustment components (3) are provided on both sides of the processing table (1), and a mounting frame (4) is provided between the adjustment components (3). An electromagnet (5) is fixedly installed in the middle of the bottom end of the mounting frame (4). A gravity block (6) is magnetically attracted to the bottom end of the electromagnet (5). A helmet fixing component (2) is also provided in the middle of the top end of the processing table (1). A protective component (7) is also provided on the processing table (1). The adjustment assembly (3) includes a support frame (31) fixedly installed on both sides of the processing table (1). The inner walls of the two support frames (31) are rotatably fitted with threaded sleeves (33), and the outer walls of the two threaded sleeves (33) are threadedly connected with lead screws (32). Both ends of the mounting frame (4) are fixedly connected to the surface of the adjacent lead screws (32). The helmet fixing assembly (2) includes a head model (21) fixedly installed at the top center of the processing table (1). Multiple sets of tension springs (22) are symmetrically embedded in the outer wall of the head model (21), and a protective plate (23) is fixedly installed at one end of each of the two adjacent tension springs (22). The protective component (7) includes a protective net (72) disposed at the bottom of the processing table (1), and an installation plate (71) is fixedly installed on the inner wall of the protective net (72).

2. The robustness testing device for motorcycle helmet processing according to claim 1, characterized in that: The adjustment assembly (3) also includes motors (34) fixedly installed on the top of two support frames (31). The output ends of the two motors (34) pass through the support frame (31) and are fixedly connected to the middle of the top of the corresponding lead screw (32). The outer walls of the two threaded sleeves (33) are slidably connected to the inner walls of the adjacent support frame (31).

3. The robustness testing device for motorcycle helmet processing according to claim 1, characterized in that: One of the support frames (31) has a scale engraved on its front for determining the height.

4. The robustness testing device for motorcycle helmet processing according to claim 1, characterized in that: The edge of the top of the processing table (1) is provided with a through groove (11), and the outer wall of the mounting plate (71) is movably connected to the inner wall of the through groove (11).

5. The robustness testing device for motorcycle helmet processing according to claim 1, characterized in that: The mounting plate (71) is made of stainless steel woven mesh.

6. The robustness testing device for motorcycle helmet processing according to claim 1, characterized in that: The processing table (1) is fixedly installed with support columns (10) at all four corners, and a base plate (8) is fixedly installed on the bottom of the adjacent side of the four support columns (10).

7. The robustness testing device for motorcycle helmet processing according to claim 6, characterized in that: A hydraulic push rod (9) is fixedly installed at the middle of the bottom end of the base plate (8). The output end of the hydraulic push rod (9) passes through the base plate (8) and is fixedly connected to the middle of the bottom end of the protective net (72).

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