A helmet impact test mechanism

Abstract

The utility model discloses a helmet anti -collision test mechanism belongs to helmet detection technical field. Including base station, a plurality of struts are fixedly connected on the base station, the top of struts is fixedly connected with the top frame, and the outer surface of two struts of same side is sleeved with the support plate, and one side of one support plate is fixedly connected with the first electromagnet disc, the inside of top frame is provided with the tow rope, one end of tow rope is fixedly connected with the test cone, through the utility model, the staff to the first electromagnet disc power off, and the first electromagnet disc loses magnetism, and then the test cone is separated from the first electromagnet disc, and the test cone falls from the side, and the test cone is in the swing state, can impact the side of helmet, thereby the side of helmet is impacted and is tested, and the servo motor can drive the chassis to rotate, thereby control model rotates, and then when the side impact test is carried out, the test cone can impact the side of helmet and detect the different positions of helmet, and the accuracy of test result is greatly improved.

Description

Technical Field

[0001] This utility model relates to a helmet impact testing mechanism, belonging to the field of helmet testing technology. Background Technology

[0002] For safety, helmets are usually worn during cycling. During the manufacturing process, helmets are typically tested for stiffness using testing equipment to ensure their protective effectiveness.

[0003] Currently, helmet testing involves moving a test cone to the required height and then dropping it to conduct an impact test on the helmet. However, existing testing institutions typically only test the top of the helmet, making it inconvenient to test the sides, resulting in inaccurate test results. Therefore, we propose a helmet impact testing mechanism. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a helmet impact testing mechanism, which solves the problem that in the prior art, when testing helmets, the testing mechanism can generally only test the top of the helmet and it is not convenient to test the sides of the helmet, thus causing inaccurate test results.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A helmet impact protection testing mechanism includes a base platform with multiple pillars fixedly connected to it. A top frame is fixedly connected to the top of each pillar. Support plates are sleeved on the outer surfaces of two pillars on the same side. A first electromagnet disk is fixedly connected to one side of one of the support plates. A traction rope is provided inside the top frame. A test cone is fixedly connected to one end of the traction rope. A winding assembly for winding the traction rope is fixedly connected to the other side of the other support plate.

[0007] By adopting the above technical solution, when a helmet needs to be tested for side impact, the staff can attach the test cone to the first electromagnet disk, slide the support plate on the support column to adjust the height of the first electromagnet disk, and then the staff can turn off the power to the first electromagnet disk. The first electromagnet disk will lose its magnetism, and the test cone will separate from the first electromagnet disk. The test cone will fall from the side and swing, which can impact the side of the helmet, thereby conducting an impact test on the side of the helmet.

[0008] The present invention is further configured such that: the winding assembly includes a fixed frame fixedly installed on one side of the support plate, a winding drum is rotatably connected inside the fixed frame, and the end of the traction rope away from the test cone is fixedly connected to the outer surface of the winding drum.

[0009] The present invention is further configured such that a handle is fixedly connected to one end of the winding drum.

[0010] By adopting the above technical solution, after the test cone is used to conduct a vertical impact test on the helmet, the operator can turn the handle to rotate the take-up drum, winding the traction rope onto the take-up drum, thereby moving the test cone back to the correct height for the next impact test.

[0011] The present invention is further configured such that the support plate and the support column are connected by a locking handle.

[0012] By adopting the above technical solution, the locking handle can fix the support plate, so that the height of the support plate can be maintained more stably after the height adjustment is completed.

[0013] The present invention is further configured such that: an electric push rod is fixedly connected to the lower surface of the top frame, a fixing plate is fixedly connected to the bottom end of the electric push rod, and the fixing plate is fixedly connected to the second electromagnet disk.

[0014] By adopting the above technical solution, the electric push rod can control the fixed plate to move in position, thereby adjusting the height of the second electromagnet disk. When performing vertical collision tests, it is convenient to adjust the height of the test cone to obtain the impact of the test cone falling at different heights on the helmet, resulting in more accurate test results.

[0015] The present invention is further configured such that: a chassis is rotatably connected inside the base platform, and a model is threadedly connected inside the chassis.

[0016] The present invention is further configured such that: the chassis is fixedly connected to the servo motor via a gear set, and the servo motor is fixedly installed inside the base via a motor bracket.

[0017] By adopting the above technical solution, during testing, the helmet is worn on the model and then fixed with a helmet strap to simulate a real wearing scenario. The servo motor can drive the chassis to rotate, thereby controlling the rotation of the model. In the side collision test, the test cone can perform side collision detection on different positions of the helmet, which greatly improves the accuracy of the test results.

[0018] The present invention is further configured such that: a scale is fixedly connected to the upper surface of the base platform, and scale strips are provided on the scale.

[0019] By adopting the above technical solution and using the dial, staff can more intuitively see the helmet's rotation angle, making it easier to inspect other parts of the helmet.

[0020] The beneficial effects of this invention are as follows: When a helmet needs to undergo side impact testing, the helmet is placed on a model and secured with a helmet strap to simulate a real wearing scenario. The operator can then attach the test cone to the first electromagnet disc, slide it along the support plate on the pillar, and adjust the height of the first electromagnet disc. When the operator de-energizes the first electromagnet disc, it loses its magnetism, causing the test cone to separate from it. The test cone falls from the side, swinging, and impacts the side of the helmet, thus performing a side impact test. A servo motor drives the chassis to rotate, controlling the model's rotation. Therefore, during the side impact test, the test cone can perform side impact testing on different parts of the helmet, greatly improving the accuracy of the test results. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the left axonometric structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the axonometric structure of this utility model from a bottom view;

[0024] Figure 4 This is a partially enlarged structural schematic diagram of the present invention;

[0025] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B;

[0026] Figure 6 This utility model Figure 3 Enlarged structural diagram at point C;

[0027] Figure 7 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This utility model Figure 3 Enlarged structural diagram at point D.

[0029] In the diagram: 1. Base platform; 2. Support column; 3. Top frame; 4. Support plate; 5. First electromagnet disc; 6. Traction rope; 7. Test cone; 8. Winding drum; 9. Handle; 10. Locking handle; 11. Electric push rod; 12. Fixing plate; 13. Second electromagnet disc; 14. Chassis; 15. Model; 16. Servo motor; 17. Motor bracket; 18. Dial; 19. Fixing frame. Detailed Implementation

[0030] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0031] Example 1

[0032] like Figures 1 to 8 As shown, a helmet impact test mechanism includes a base platform 1, on which multiple support columns 2 are fixedly connected. A top frame 3 is fixedly connected to the top of each support column 2. Support plates 4 are fitted onto the outer surfaces of two support columns 2 on the same side. The support plates 4 and the support columns 2 are connected by a locking handle 10. The locking handle 10 includes a threaded post and a handle disc. When the operator turns the handle disc, the threaded post is screwed into the support plate 4 until one end of the threaded post abuts against the outer surface of the support column 2, thus locking the support plate 4 and the support column 2. A first electromagnet disc 5 is fixedly connected to one side of one of the support plates 4. A traction rope 6 is provided inside the top frame 3. A test cone 7 is fixedly connected to one end of the traction rope 6. A winding assembly for winding the traction rope 6 is fixedly connected to the other side of the other support plate 4.

[0033] The winding assembly includes a fixed frame 19 fixedly installed on one side of the support plate 4. A winding drum 8 is rotatably connected inside the fixed frame 19. The end of the traction rope 6 away from the test cone 7 is fixedly connected to the outer surface of the winding drum 8. A handle 9 is fixedly connected to one end of the winding drum 8.

[0034] An electric push rod 11 is fixedly connected to the lower surface of the top frame 3. A fixing plate 12 is fixedly connected to the bottom end of the electric push rod 11. The fixing plate 12 is fixedly connected to the second electromagnet disk 13. Both the first electromagnet disk 5 and the second electromagnet disk 13 are equipped with coils. When the coils are energized, the first electromagnet disk 5 and the second electromagnet disk 13 can generate magnetism and attract the test cone 7. When the coils are de-energized, the first electromagnet disk 5 and the second electromagnet disk 13 can lose their magnetism.

[0035] The base platform 1 is rotatably connected to the chassis 14. The chassis 14 is connected to the model 15 by threads. The chassis 14 is fixedly connected to the servo motor 16 by a gear set. The servo motor 16 is fixedly installed inside the base platform 1 by a motor bracket 17. The upper surface of the base platform 1 is fixedly connected to a scale 18, and the scale 18 is provided with scale strips.

[0036] When a side impact test is required on a helmet, the operator can attach the test cone 7 to the first electromagnet disk 5, slide the support plate 4 on the support column 2 to adjust the height of the first electromagnet disk 5, and then disconnect the power to the first electromagnet disk 5. As a result, the first electromagnet disk 5 loses its magnetism, the test cone 7 separates from the first electromagnet disk 5, and the test cone 7 falls from the side in a swinging state, which can impact the side of the helmet, thus conducting an impact test on the side of the helmet.

[0037] After the test cone 7 is used to perform a vertical impact test on the helmet, the operator can rotate the handle 9 to rotate the take-up drum 8, which will wind the traction rope 6 onto the take-up drum 8, thereby moving the test cone 7 back to the correct height for the next impact test.

[0038] The locking handle 10 can fix the support plate 4, so that the height of the support plate 4 can be maintained more stably after the height adjustment is completed.

[0039] The electric push rod 11 can control the fixed plate 12 to move in position, thereby adjusting the height of the second electromagnet disk 13. When performing vertical collision tests, it is convenient to adjust the height of the test cone 7 to obtain the impact of the test cone 7 falling at different heights on the helmet, and the test results are more accurate.

[0040] During testing, the helmet is worn on the model 15 and secured with a helmet strap to simulate a real wearing scenario. The servo motor 16 can drive the chassis 14 to rotate, thereby controlling the rotation of the model 15. During the side impact test, the test cone 7 can perform side impact detection on different positions of the helmet, greatly improving the accuracy of the test results.

[0041] With the dial 18 set up, staff can more intuitively see the helmet's rotation angle, making it easier to inspect other parts of the helmet.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A helmet impact test mechanism, comprising a base table (1), a plurality of support columns (2) are fixedly connected on the base table (1), and a top frame (3) is fixedly connected at the top end of the support columns (2), characterized in that: Support plates (4) are fitted onto the outer surfaces of the two support columns (2) on the same side. A first electromagnet disc (5) is fixedly connected to one side of one of the support plates (4). A traction rope (6) is provided inside the top frame (3). A test cone (7) is fixedly connected to one end of the traction rope (6). A winding assembly that can wind up the traction rope (6) is fixedly connected to the other side of the other support plate (4).

2. The helmet impact testing mechanism according to claim 1, characterized in that: The winding assembly includes a fixed frame (19) fixedly installed on one side of the support plate (4), and a winding drum (8) is rotatably connected inside the fixed frame (19). The end of the traction rope (6) away from the test cone (7) is fixedly connected to the outer surface of the winding drum (8).

3. The helmet impact testing mechanism according to claim 2, characterized in that: A handle (9) is fixedly connected to one end of the winding drum (8).

4. The helmet impact testing mechanism according to claim 1, characterized in that: The support plate (4) and the support column (2) are connected by a locking handle (10).

5. The helmet impact testing mechanism according to claim 1, characterized in that: An electric push rod (11) is fixedly connected to the lower surface of the top frame (3), and a fixing plate (12) is fixedly connected to the bottom end of the electric push rod (11). The fixing plate (12) is fixedly connected to the second electromagnet disk (13).

6. The helmet impact testing mechanism according to claim 1, characterized in that: The base platform (1) is rotatably connected to a chassis (14), and the chassis (14) is connected to a model (15) by a thread.

7. A helmet impact testing mechanism according to claim 6, characterized in that: The chassis (14) is fixedly connected to the servo motor (16) via a gear set, and the servo motor (16) is fixedly installed inside the base platform (1) via a motor bracket (17).

8. A helmet impact testing mechanism according to claim 6, characterized in that: A scale (18) is fixedly connected to the upper surface of the base (1), and scale bars are provided on the scale (18).

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