Helmet Energy Absorption Impact Testing Machine

Abstract

The present invention discloses a helmet energy absorption collision testing machine, which includes a base and a frame. A slide rail is provided in the frame. A releaser, a helmet holder or a test impactor is provided on the slide rail. The upper end of the releaser is connected to a lifting mechanism, and the lower end is connected to the helmet holder or the test impactor. A collider is provided on the base below the helmet holder, and a helmet fixing mechanism is provided below the test impactor. A wire winder is further provided on the frame. The wire winder is connected to the helmet holder or the test impactor and pulls it up. The helmet energy absorption collision testing machine provided by the present invention has a releaser, different types of helmet holders and different types of test impactors, and can realize all-round, multi-height and various types of helmet collision tests. It has diverse functions and is convenient to use. It has a wire winder, which can prevent the occurrence of secondary impact and ensure the accuracy of the test. Therefore, the test results are also more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of helmet performance testing equipment, and specifically to a helmet energy absorption impact testing machine. Background Art

[0002] A helmet impact testing machine is a testing and detection instrument that conducts impact or shock collision tests on helmets to detect and evaluate the anti-impact performance and wear resistance of helmets. The existing helmet testing devices have single functions and cannot perform more diverse tests. Therefore, the testing of helmets is not comprehensive enough to ensure the accuracy of test results.

[0003] For example, the helmet impact testing machine disclosed in Application No. 201621433768.9 only has a basket structure, and the function achieved is only to impact the uppermost end of the helmet after the helmet freely descends. The test surface is very limited, and the firmness of other positions is not tested. However, in the event of an accident, it is difficult to ensure that the position where the helmet is impacted is the uppermost end. Therefore, the test orientation of this application is limited and cannot ensure the accuracy of test results. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention provides a helmet energy absorption impact testing machine.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] A helmet energy absorption impact testing machine includes a base and a frame. A slide rail is provided in the frame. A releaser, a helmet gripper or a test impactor is provided on the slide rail. The upper end of the releaser is connected to a lifting mechanism, and the lower end is connected to the helmet gripper or the test impactor. A collision device is provided on the base below the helmet gripper, and a helmet fixing mechanism is provided below the test impactor. A wire winder is also provided on the frame. The wire winder is connected to the helmet gripper or the test impactor and pulls it up.

[0007] Further, the releaser includes a back plate. The two sides of the back plate are slidably arranged on the slide rail. A fixing plate is further provided at the lower part of the back plate. Release hooks are rotatably connected to both sides of the fixing plate. A driver is provided outside the release hooks to push the release hooks to rotate.

[0008] Further, the releaser includes a frame body. The two sides of the frame body are slidably arranged on the slide rail. A release hook is rotatably provided on the frame body. A limit post and a driver are provided on one side of the release hook, and a travel switch is connected to the other side. The driver drives the release hook to rotate, and the release hook stops rotating after triggering the travel switch.

[0009] Furthermore, the helmet holder includes a basket bottom, and both sides of the basket bottom are connected with basket arms. The basket arms are slidably arranged on the slide rails, and their upper parts are buckled with the release hooks.

[0010] Furthermore, the helmet holder includes a flying arm, and a spherical arm is connected to the end of the flying arm. The spherical arm is rotatably connected with the helmet, and the upper part of the flying arm is buckled with the release hook.

[0011] Furthermore, the test impactor includes a flying arm, a straight arm is connected to the lower part of the flying arm, a receiving cavity is connected to the end of the straight arm, a counterweight is arranged in the receiving cavity, and an impact panel is further arranged at the bottom of the receiving cavity. The upper part of the flying arm is buckled with the release hook.

[0012] Furthermore, the test impactor includes a first clamping piece and a second clamping piece. A connecting block is arranged between the first clamping piece and the second clamping piece. The upper end of the connecting block is connected with a lifting rod, and the lower end is connected with a puncture cone. The lifting rod is buckled with the release hook.

[0013] Furthermore, the first helmet fixing mechanism includes a seat body, a track is arranged on the seat body, a puncture cone is slidably arranged on the track, a helmet fixing seat is arranged below the puncture cone, the impact panel impacts the puncture cone, and the puncture cone moves downward to pierce the helmet located on the helmet fixing seat.

[0014] Furthermore, the wire winder includes a support arm, a wire clamping mechanism is arranged on the support arm, a third pulley is arranged above the support arm, and a fourth pulley is arranged below the support arm. One end of the towing rope is connected with the helmet holder or the test impactor, and the other end is sequentially arranged through the third pulley, the wire clamping mechanism, and the fourth pulley.

[0015] Furthermore, a first limiting protrusion and a second limiting protrusion are arranged in the wire clamping box of the wire clamping mechanism. First clamping pieces are arranged on the outer sides of the first limiting protrusion and the second limiting protrusion. A second clamping piece is fixed above the first clamping piece. The first clamping piece and the second clamping piece clamp and fix the towing rope. The driver drives the first clamping piece to rotate, away from the second clamping piece, and close to contact with the first limiting protrusion or the second limiting protrusion to release the towing rope.

[0016] Advantages of the present invention:

[0017] The helmet energy absorption collision testing machine provided by the present invention has a releaser, different types of helmet holders, and different types of test impactors, and can realize all-round, multi-height, and various types of helmet collision tests. It has diverse functions and is convenient to use. It has a wire winder, which can prevent the occurrence of secondary impacts and ensure the accuracy of the test. Therefore, the test results are also more accurate. Description of the drawings

[0018] Figure 1Schematic structural diagram of the helmet energy collision testing machine of the present invention;

[0019] Figure 2 Schematic structural diagram of the first embodiment of the releaser of the present invention;

[0020] Figure 3 Schematic structural diagram of the first embodiment of the helmet gripper of the present invention;

[0021] Figure 4 Exploded view of the first embodiment of the helmet gripper of the present invention;

[0022] Figure 5 Schematic structural diagram of the wire reel of the present invention;

[0023] Figure 6 Schematic structural diagram of the first embodiment of the test impactor of the present invention;

[0024] Figure 7 Schematic structural diagram of the second embodiment of the releaser of the present invention;

[0025] Figure 8 Exploded view of the second embodiment of the releaser of the present invention;

[0026] Figure 9 Schematic structural diagram of the second embodiment of the helmet gripper of the present invention;

[0027] Figure 10 Exploded view of the second embodiment of the helmet gripper of the present invention;

[0028] Figure 11 Schematic structural diagram of the second embodiment of the test impactor of the present invention;

[0029] Figure 12 Schematic structural diagram of the first helmet fixing mechanism of the present invention.

[0030] In the figure: 1 - base, 2 - frame, 3 - slide rail, 4 - releaser, 5 - helmet holder, 6 - test impactor, 7 - collider, 8 - first helmet fixing mechanism, 9 - first cord clamp, 10 - first support column, 11 - second support column, 12 - cross arm, 13 - second cord clamp, 14 - back plate, 15 - fixing plate, 16 - release hook, 17 - body, 18 - stress rod, 19 - first hook, 20 - driver, 21 - panel, 22 - basket bottom, 23 - basket arm, 24 - second hook, 25 - synchronous pulley set, 26 - drive motor, 27 - frame body, 28 - special-shaped hook, 29 - limit post, 30 - travel switch, 31 - flying arm, 32 - accommodation cavity, 33 - counterweight, 34 - impact panel, 35 - first pulley, 36 - second pulley, 37 - support arm, 38 - wire clamping mechanism, 39 - third pulley, 40 - fourth pulley, 41 - wire clamping box, 42 - first limit protrusion, 43 - second limit protrusion, 44 - first clamping piece, 45 - second clamping piece, 46 - engaging teeth, 47 - ball arm, 48 - seat body, 49 - track, 50 - puncture cone, 51 - connecting block, 52 - lifting rod, 54 - belt clip, 55 - helmet fixing seat, 56 - wire reel. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] Unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] Embodiment 1

[0035] Please refer to Figure 1, A helmet energy absorption collision testing machine provided by the present invention includes a base 1 and a frame 2 provided on the base 1. A slide rail 3 is provided in the frame 2. A releaser 4 is provided on the slide rail 3. The upper end of the releaser 4 is connected to a lifting mechanism, and the lower end is connected to a helmet holder 5 or a test impactor 6. A collider 7 is provided on the base 1 below the helmet holder 5, and a helmet fixing mechanism is provided below the test impactor 6. A wire winder is also provided on the frame 2, and the wire winder is connected to the helmet holder 5 or the test impactor 6, which is used to lift the helmet holder 5 or the test impactor 6 after impact to prevent secondary collision and ensure the accuracy of the test.

[0036] The frame 2 includes a vertically arranged first support column 10 and a second support column 11. The upper ends of the first support column 10 and the second support column 11 are connected by a crossbar 12. A slide rail 3 is provided on the frame 2. The slide rail 3 is a rope slide rail, the upper end of which is fixed to the crossbar 12 by a first rope clamp 9, and the lower end is fixed to the base 1 by a second rope clamp 13.

[0037] Please refer to Figure 2 , The releaser 4 includes a back plate 14 and a front panel 21. The two sides of the back plate 14 are slidably arranged on the slide rail 3, and a fixing plate 15 is provided at its lower part. Release hooks 16 are rotatably connected to both sides of the fixing plate 15.

[0038] The release hook 16 includes a body 17, and the body 17 is rotatably connected to the fixing plate 15. A force-receiving rod 18 is provided at the upper end of the body 17, and a first hook 19 is provided at the lower end. The first hook 19 is buckled with the helmet holder 5 or the test impactor 6. The force-receiving rod 18 inclines towards the fixing plate 15, and the inclination angle is 30° - 45°.

[0039] A driver is provided outside the force-receiving rod 18. The driver 20 is a cylinder, and the cylinder pushes the force-receiving rod 18 to rotate, so that the first hook 19 is disengaged from the helmet holder 5 or the test impactor 6, and the helmet holder 5 or the test impactor 6 is released.

[0040] Please refer to Figure 3 and Figure 4 , The helmet holder 5 includes a basket bottom 22. Basket arms 23 are connected to both sides of the basket bottom 22. The basket arms 23 are slidably arranged on the slide rail 3, and a second hook 24 is connected to the top end thereof. The second hook 24 is buckled with the first hook 19.

[0041] Please refer to Figure 1 , The lifting mechanism includes a synchronous pulley set 25, a synchronous belt and a driving motor 26. The end of the synchronous belt is connected to the back plate 14 through a belt clamp 54. The driving motor 26 drives the synchronous pulley set 25 to rotate, and the synchronous belt moves to drive the back plate 14 to lift and lower.

[0042] Please refer to Figure 1, the collision device 7 is a vertically arranged columnar body with a conical, cylindrical, prismatic or other shape, and in this embodiment, a cylindrical shape is adopted.

[0043] When the helmet holder 5 is released by the releaser 4, it moves downward along the slide rail 3 and collides with the collision device 7 for testing.

[0044] Please refer to Figure 5 , the wire reel 57 includes a support arm 37 arranged on one side of the frame body. A wire clamping mechanism 38 is provided on the support arm 37. A third pulley 39 is provided above the support arm 37, and a fourth pulley 40 is provided below. One end of the towing rope is connected to the helmet holder 5 or the test impactor 6, and the other end is arranged to pass through the third pulley 39, the wire clamping mechanism 38, and the fourth pulley 40 in sequence. The towing rope is an elastic rope.

[0045] The wire clamping mechanism 38 includes a wire clamping box 41. A first limiting protrusion 42 and a second limiting protrusion 43 are provided at the bottom of the wire clamping box 41. First clamping pieces 44 are rotatably provided on the outer sides of the first limiting protrusion 42 and the second limiting protrusion 43. A second clamping piece 45 is fixed above the first clamping piece 44. Biting teeth 46 are provided on the inner sides of the first clamping piece 44 and the second clamping piece 45. The first clamping piece 44 and the second clamping piece 45 clamp and fix the towing rope.

[0046] A driver 20 is provided on the outer side of the first clamping piece 44. The driver 20 is a cylinder. The cylinder drives the first clamping piece 44 to rotate, move away from the second clamping piece 45, and contact the first limiting protrusion 42 or the second limiting protrusion 43 to release the towing rope.

[0047] Embodiment 2

[0048] The difference between this embodiment and Embodiment 1 is that: a test impactor 6 is connected to the lower end of the releaser 4. A first helmet fixing mechanism 8 is provided below the test impactor 6, and the structure of the releaser 4 in this embodiment is different from the structure of the releaser 4 in Embodiment 1.

[0049] Please refer to Figure 6 , the test impactor 6 includes a flying arm 31. A first hook 19 is provided on the upper part of the flying arm 31. A straight arm is connected to the lower part, and a receiving cavity 32 is connected to the end of the straight arm. A counterweight 33 is provided in the receiving cavity 32. An impact panel 34 is further provided at the bottom of the receiving cavity 32.

[0050] Please refer to Figure 12 , the first helmet fixing mechanism 8 includes a seat body 48. A track 49 is provided on the seat body 48. A puncture cone 50 is slidably provided on the track 49. A helmet fixing seat 55 is provided below the puncture cone 50.

[0051] The impact panel 34 of the test impactor 6 impacts the puncture cone 50, and the puncture cone 50 moves downward to pierce the helmet located on the helmet fixing seat 55.

[0052] Please refer to Figure 7 and Figure 8 , the releaser 4 includes a frame body 27, a pulley block is provided on the frame body 27, and the pulley block is slidably connected to the slide rail 3. A release hook 16 is rotatably provided on the frame body 27. A limit post 29 is clamped on the upper left side of the release hook 16, and a second hook 24 is provided at the lower part. The second hook 24 is buckled with the first hook 19. A driver 20 is provided on the left side of the release hook 16. The driver 20 is a cylinder, and a travel switch 30 is connected to the right side. The cylinder pushes the release hook 16 to rotate, the first hook 19 and the second hook 24 are disengaged, and the release hook 16 stops rotating after triggering the travel switch 30.

[0053] The pulley block includes a first pulley 35 provided inside the frame body 27 and a second pulley 36 provided outside the first pulley 35. The slide rail 3 is restricted between the first pulley 35 and the second pulley 36.

[0054] Embodiment 3

[0055] Light reference Figure 9 and Figure 10 , the difference between this embodiment and the second embodiment is that: the releaser 4 is connected with a helmet holder 5. The helmet holder 5 includes a flying arm 31, and a spherical arm 47 is connected to the end of the flying arm 31. The spherical arm 47 is rotatably connected to the helmet.

[0056] A collision device 7 is provided below the helmet holder 5. The collision device 7 is a columnar body such as a conical shape, a cylindrical shape, a prismatic shape, etc. arranged vertically. In this embodiment, a cylindrical shape is adopted.

[0057] Embodiment 4

[0058] Please refer to Figure 11 , the difference between this embodiment and Embodiment 3 is that the releaser 4 is connected with a test impact device 6. The test impact device 6 includes a first clamping piece 44 and a second clamping piece 45. A connecting block 51 is provided between the first clamping piece 44 and the second clamping piece 45. The upper end of the connecting block 51 is connected with a lifting rod 52, and the lower end is connected with a piercing cone 50. The lifting rod 52 is buckled with the release hook 16.

[0059] A second helmet fixing mechanism is provided on the base 1 below the test impact device 6.

[0060] During use, the releaser 4 releases the test impact device 6, and the test impact device 6 slides down along the slide rail 3 and impacts the helmet fixed on the second helmet fixing mechanism to achieve an impact test.

[0061] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A helmet energy absorption collision tester, comprising a base (1) and a frame (2), wherein a slide rail (3) is provided in the frame (2), and characterized in that: The slide rail (3) is provided with a releaser (4), a helmet holder (5) or a test impactor (6); the upper end of the releaser (4) is connected to the lifting mechanism, and the lower end is connected to the helmet holder (5) or the test impactor (6); the base (1) is provided with a collision device (7) below the helmet holder (5); and a helmet fixing mechanism is provided below the test impactor (6); the frame (2) is also provided with a wire take-up device (56), and the wire take-up device (56) is connected to the helmet holder. (5) or the test impactor (6) is connected and pulled up; the wire take-up device (56) includes a support arm (37) arranged on one side of the frame, a wire clamping mechanism is provided on the support arm (37), a third pulley is provided above the support arm (37), and a fourth pulley is provided below the support arm (37), one end of the traction rope is connected to the helmet holder (5) or the test impactor (6), and the other end passes through the third pulley, the wire clamping mechanism, and the fourth pulley in sequence, the wire clamping mechanism includes a wire clamping box (41), and the wire clamping box (41) The bottom is provided with a first limiting protrusion (42) and a second limiting protrusion (43), the outer sides of the first limiting protrusion (42) and the second limiting protrusion (43) are both rotatably provided with a first clamping piece (44), a second clamping piece (45) is fixed above the first clamping piece (44), and the first clamping piece (44) and the second clamping piece (45) clamp and fix the traction rope; a first helmet fixing mechanism (8) is provided below the test impactor (6), and the test impactor (6) includes a flying arm (3 1), a first hook (19) is provided on the upper portion of the flying arm (31), a straight arm is connected to the lower portion, an end portion of the straight arm is connected to a receiving chamber (32), a counterweight (33) is provided in the receiving chamber (32), and an impact panel (34) is further provided at the bottom of the receiving chamber (32), a first helmet fixing mechanism (8) includes a seat body (48), a track (49) is provided on the seat body (48), a puncture cone (50) is slidably provided on the track (49), and a helmet fixing seat (55) is provided below the puncture cone (50).

2. The helmet energy absorption collision tester according to claim 1, characterized in that: The releaser (4) comprises a back plate (14), both sides of which are slidably arranged on the slide rail (3), a fixed plate (15) is further provided at the lower part of the back plate (14), both sides of the fixed plate (15) are rotatably connected to release hooks (16), and a driver (20) is provided on the outer side of the release hook (16), and the driver (20) drives the release hook (16) to rotate.

3. The helmet energy absorption collision tester according to claim 1, characterized in that: The releaser (4) comprises a frame (27), both sides of which are slidably arranged on the slide rails (3), a release hook (16) is rotatably provided on the frame (27), one side of the release hook (16) is provided with a limit column (29) and a driver (20), and the other side is connected to a travel switch (30), the driver (20) drives the release hook (16) to rotate, and the release hook (16) stops rotating after triggering the travel switch (30).

4. The helmet energy absorption collision tester according to claim 2, characterized in that: The helmet holder (5) comprises a basket bottom (22), both sides of which are connected to basket arms (23), and the basket arms (23) are slidably arranged on the slide rail (3), and the upper portion of the basket arms (23) is buckled with a release hook (16).

5. The helmet energy absorption collision tester according to claim 3, characterized in that: The helmet holder (5) comprises a flying arm (31), the end of the flying arm (31) is connected to a ball arm (47), the ball arm (47) is rotatably connected to the helmet, and the upper part of the flying arm (31) is buckled with a release hook (16).

6. The helmet energy absorption collision tester according to claim 3, characterized in that: The upper portion of the flying arm (31) is buckled with the release hook (16).

7. The helmet energy absorption collision tester according to claim 3, characterized in that: The test impactor (6) comprises a first clamping piece (44) and a second clamping piece (45), a connecting block (51) is provided between the first clamping piece (44) and the second clamping piece (45), the upper end of the connecting block (51) is connected to a lifting rod (52), and the lower end is connected to a puncture cone (50), and the lifting rod (52) is buckled with a release hook (16).

8. The helmet energy absorption collision tester according to claim 6, characterized in that: The first helmet fixing mechanism (8) comprises a seat body (48), a track (49) is provided on the seat body (48), a puncture cone (50) is slidably provided on the track (49), a helmet fixing seat (55) is provided below the puncture cone (50), the impact panel (34) impacts the puncture cone (50), and the puncture cone (50) moves downward to puncture the helmet located on the helmet fixing seat (55).

9. The helmet energy absorption collision tester according to any one of claims 1 to 8, characterized in that: The wire take-up device comprises a support arm (37), a wire clamping mechanism (38) is provided on the support arm (37), a third pulley (39) is provided above the support arm (37), and a fourth pulley (40) is provided below the support arm (37); one end of the traction rope is connected to the helmet holder (5) or the test impactor (6), and the other end passes through the third pulley (39), the wire clamping mechanism (38), and the fourth pulley (40) in sequence.

10. The helmet energy absorption collision testing machine according to claim 9, characterized in that: A first limiting protrusion (42) and a second limiting protrusion (43) are provided in the wire clamping box (41) of the wire clamping mechanism (38); a first clamping piece (44) is provided on the outer side of the first limiting protrusion (42) and the second limiting protrusion (43); a second clamping piece (45) is fixed above the first clamping piece (44); the first clamping piece (44) and the second clamping piece (45) clamp and fix the traction rope; the driver (20) drives the first clamping piece (44) to rotate, away from the second clamping piece (45), and close to the first limiting protrusion (42) or the second limiting protrusion (43) to contact and release the traction rope.

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