A helmet testing device

Abstract

This utility model provides a safety helmet testing device, including a test chamber and a testing mechanism installed inside it. The test chamber comprises a body, a top plate, a fixed baffle, and a movable baffle. A handwheel and a rotating rod allow for the rotation and adjustment of the mounting plate, a smooth stainless steel rod, an impact hammer, and a cone, facilitating the adjustment of the impact hammer or cone directly above the safety helmet so that it can impact the helmet, facilitating puncture and impact tests. The smooth stainless steel rod guides and limits the impact hammer and cone, ensuring they can impact and puncture the helmet while preventing them from flying outwards. The fixed baffle, movable baffle, and body work together to prevent helmet fragments from flying outwards, ensuring the safety of surrounding personnel and improving the device's practicality.

Description

Technical Field

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

[0002] Safety helmets protect the head from external factors and prevent injury. During the manufacturing process, safety helmets need to undergo impact and puncture tests.

[0003] Chinese utility model patent CN220019245U discloses a safety helmet impact performance testing device, comprising: a base plate with a support member on top; a protective component disposed on top of the base plate, at least partially mounted on the support member, the protective component being partially movable along the support member in a vertical direction; and a testing mechanism disposed on top of the base plate, the testing mechanism being located between the protective components. The device allows for the release of an impact cone, facilitating helmet testing through the impact of the impact cone against the helmet. However, upon impact, the impact cone and the helmet's locking plate easily scatter in all directions, potentially causing injury to nearby personnel, thus limiting its practicality.

[0004] Therefore, this utility model provides a safety helmet testing device. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a safety helmet testing device to solve the problems mentioned in the background. This invention uses a smooth stainless steel rod to guide and limit the impact hammer and cone, enabling them to perform impact and puncture tests on the safety helmet while preventing them from flying outwards. Through the cooperation of the fixed baffle, movable baffle, and housing, it can prevent helmet fragments from flying outwards, ensuring the safety of surrounding personnel and improving the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety helmet testing device, comprising a test chamber and a testing mechanism disposed within it. The test chamber includes a chamber body, a top plate, a fixed baffle, and a movable baffle. The testing mechanism includes a rotating rod, a mounting plate, a smooth stainless steel rod, an impact hammer, a cone, and a limiting mechanism. An L-shaped seat is fixedly disposed at the bottom of the inner side of the chamber body. The rotating rod is rotatably mounted between the top plate and the L-shaped seat. The limiting mechanism is disposed between the bottom end of the rotating rod and the L-shaped seat. The mounting plate is fixedly mounted on the outer side of the upper end of the rotating rod. The smooth stainless steel rods are symmetrically fixedly disposed on both sides of the bottom of the mounting plate. The impact hammer and the cone are slidably mounted on the smooth stainless steel rods on both sides through sliding holes provided inside. A snap-fit ​​mechanism is provided between the top of the impact hammer and the cone and the mounting plate.

[0007] Furthermore, uprights are fixedly installed at the four corners of the top of the box, the top plate is fixedly installed on the top of the uprights, and the fixed baffles are fixedly installed on the left, right and rear sides of the uprights corresponding to the top of the box.

[0008] Furthermore, a movable baffle is movably mounted on the top of the front end of the box via a hinge, and locks are provided between the two ends of the movable baffle and the two fixed baffles on both sides.

[0009] Furthermore, a handwheel is fixedly installed at the top of the rotating rod corresponding to the top plate, and a rotating column is fixedly installed at the bottom of the rotating rod corresponding to the interior of the L-shaped seat.

[0010] Furthermore, the limiting mechanism includes a locking block and a limiting hole. The limiting holes are symmetrically opened inside both ends of the rotating column. The locking block is slidably installed inside the L-shaped seat. An inner spring is fixedly installed between one end of the locking block and the L-shaped seat. One end of the locking block is engaged and installed inside the limiting hole.

[0011] Furthermore, the locking mechanism includes a limiting block, a limiting rod, and a guide rod. The limiting block is fixedly installed on the top of the impact hammer and the cone. A slot is provided on one side of the limiting block. The limiting rod and the guide rod are fixedly connected.

[0012] Furthermore, fixing blocks are symmetrically fixed at the top of both ends of the mounting plate, one end of the guide rod is slidably installed inside the fixing block, the limiting rod is L-shaped, an outer spring is fixedly installed between one end of the limiting rod and the fixing block corresponding to the outer side of the guide rod, and one end of the limiting rod is inserted into the slot.

[0013] Furthermore, a head mold is fixedly installed at the top of one end of the L-shaped seat corresponding to the bottom of the impact hammer, the pointed cone is located above the other end of the L-shaped seat, and a safety helmet is installed on the top of the head mold.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a safety helmet testing device. A handwheel and rotating rod allow for the rotational adjustment of the mounting plate, smooth stainless steel rod, impact hammer, and cone, facilitating the positioning of the impact hammer or cone directly above the safety helmet. The engagement of the locking block and the limiting hole allows for the limiting of the rotating column and rod, facilitating the positioning of the impact hammer and cone directly above the safety helmet. Separation of the limiting rod and the limiting block allows the impact hammer or cone to strike the safety helmet, facilitating puncture and impact tests. The smooth stainless steel rod guides and limits the impact hammer and cone, ensuring they can effectively impact and puncture the safety helmet while preventing them from flying outwards. The combination of the fixed baffle, movable baffle, and housing further prevents helmet fragments from flying outwards, ensuring the safety of surrounding personnel and significantly improving the device's practicality. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a safety helmet testing device according to the present invention;

[0016] Figure 2 This is a front cross-sectional view of a safety helmet testing device according to the present invention;

[0017] Figure 3 This utility model relates to a safety helmet testing device. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the test chamber of a safety helmet testing device according to this utility model;

[0019] Figure 5 This is a structural diagram of the testing mechanism of a safety helmet testing device according to the present invention;

[0020] Figure 6 This is a structural diagram of the L-shaped base and head mold of a safety helmet testing device according to this utility model;

[0021] Figure 7 This is a structural diagram of the impact hammer of a safety helmet testing device according to this utility model;

[0022] Figure 8 This is a diagram of the pointed cone structure of a safety helmet testing device according to this utility model;

[0023] In the diagram: 1. Box body; 2. Upright pole; 3. Top plate; 4. Fixed baffle; 5. Movable baffle; 6. Test mechanism; 7. L-shaped base; 8. Head mold; 9. Safety helmet; 10. Rotating rod; 11. Handwheel; 12. Mounting plate; 13. Smooth stainless steel rod; 14. Impact hammer; 15. Cone; 16. Limiting block; 17. Fixed block; 18. Limiting rod; 19. Guide rod; 20. Locking block; 21. Rotating column; 22. Limiting hole. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figures 1 to 8 This utility model provides a technical solution: a safety helmet testing device, including a test chamber and a testing mechanism 6 disposed inside it. The test chamber includes a chamber body 1, a top plate 3, a fixed baffle 4, and a movable baffle 5. The testing mechanism 6 includes a rotating rod 10, a mounting plate 12, a smooth stainless steel rod 13, an impact hammer 14, a pointed cone 15, and a limiting mechanism. An L-shaped seat 7 is fixedly disposed at the bottom of the inner side of the chamber body 1. The rotating rod 10 is rotatably mounted between the top plate 3 and the L-shaped seat 7. The limiting mechanism is disposed between the bottom end of the rotating rod 10 and the L-shaped seat 7. The mounting plate 12 is fixedly mounted on the outer side of the upper end of the rotating rod 10. The smooth stainless steel rod 13 is symmetrically fixed. The impact hammer 14 and the cone 15 are slidably mounted on the smooth stainless steel rods 13 on both sides of the bottom of the mounting plate 12 through sliding holes. The tops of the impact hammer 14 and the cone 15 are provided with a snap-fit ​​mechanism between them and the mounting plate 12. The housing 1, the fixed baffle 4, and the movable baffle 5 can block the fragments of the safety helmet 9. The smooth stainless steel rods 13 can guide and limit the impact hammer 14 and the cone 15, preventing them from flying around under the reaction force of the safety helmet 9, thus preventing the fragments of the safety helmet 9 and the impact hammer 14 and the cone 15 from causing injury to the surrounding personnel and improving the safety of the device.

[0026] In this embodiment, uprights 2 are fixedly installed at the four corners of the top of the box 1, and a top plate 3 is fixedly installed on the top of the uprights 2. Fixed baffles 4 are fixedly installed on the left, right and rear sides of the uprights 2 corresponding to the top of the box 1. A movable baffle 5 is movably installed on the top of the front end of the box 1 via a hinge. Locks are provided between the two ends of the movable baffle 5 and the two fixed baffles 4 on both sides. The uprights 2 and the top plate 3 facilitate the support and installation of the test mechanism 6, which can improve the stability of the test mechanism 6. By rotating and adjusting the movable baffle 5, it is convenient to install the safety helmet 9 on the top of the head mold 8, and it can also block the fragments of the safety helmet 9, which can improve the safety of the device.

[0027] In this embodiment, a handwheel 11 is fixedly installed at the top of the rotating rod 10 corresponding to the top plate 3, and a rotating column 21 is fixedly installed at the bottom of the rotating rod 10 corresponding to the interior of the L-shaped seat 7. The limiting mechanism includes a locking block 20 and a limiting hole 22. The limiting hole 22 is symmetrically opened at both ends of the rotating column 21. The locking block 20 is slidably installed inside the L-shaped seat 7. An inner spring is fixedly installed between one end of the locking block 20 and the L-shaped seat 7. One end of the locking block 20 is engaged inside the limiting hole 22. The handwheel 11 can drive the rotating rod 10 to rotate. The rotating rod 10 can drive the smooth stainless steel rod 13, the impact hammer 14, and the cone 15 to rotate through the mounting plate 12, which facilitates the alternating adjustment of the positions of the impact hammer 14 and the cone 15, and facilitates the impact and puncture tests on the safety helmet 9.

[0028] In this embodiment, the locking mechanism includes a limiting block 16, a limiting rod 18, and a guide rod 19. The limiting block 16 is fixedly disposed on the top of the impact hammer 14 and the cone 15. A slot is provided on one side of the limiting block 16. The limiting rod 18 and the guide rod 19 are fixedly connected. Fixing blocks 17 are symmetrically fixedly disposed on the top of both ends of the mounting plate 12. One end of the guide rod 19 is slidably installed inside the fixing block 17. The limiting rod 18 is L-shaped, and one end of the limiting rod 18 is connected to the fixing block 19. An external spring is fixedly installed on the outer side of the guide rod 19 between 7. One end of the limiting rod 18 is inserted into the inside of the slot. Through the insertion of the limiting rod 18 and the limiting block 16, the impact hammer 14 and the cone 15 can be fixed to the bottom of the mounting plate 12. By moving the limiting rod 18, it can be separated from the limiting block 16. The impact hammer 14 and the cone 15 can slide downward under their own weight. The smooth stainless steel rod 13 guides the impact hammer 14 and the cone 15, which facilitates the impact and puncture tests on the safety helmet 9.

[0029] In this embodiment, a head mold 8 is fixedly provided at the top of one end of the L-shaped seat 7 corresponding to the lower part of the impact hammer 14, and the pointed cone 15 is provided above the other end of the L-shaped seat 7. A safety helmet 9 is installed on the top of the head mold 8. The head mold 8 facilitates the installation of the safety helmet 9 and facilitates the impact and puncture tests on the safety helmet 9 by the impact hammer 14 and the pointed cone 15.

[0030] When using this helmet testing device, the impact hammer 14 and the cone 15 are slid upwards along the smooth stainless steel rod 13, and the limiting rod 18 is pushed to one side. The limiting rod 18 drives the guide rod 19 to slide to one side and compress the outer spring. The limiting blocks 16 at the top of the impact hammer 14 and the cone 15 are inserted into the interior of both ends of the mounting plate 12, and the slots are located above the mounting plate 12. When the limiting rod 18 is released, it moves in the opposite direction under the elastic force of the guide rod 19 and the outer spring, and one end of the limiting rod 18 is inserted into the interior of the slot, which facilitates the limiting of the limiting blocks 16, the impact hammer 14, and the cone 15 by the action of the limiting rod 18 and the slot. Position the impact hammer 14 and cone 15 at the top, open the movable baffle 5 and rotate it downwards. A high-precision pressure sensor is fixedly installed on the top of the head mold 8. The safety helmet 9 to be inspected is installed on top of the head mold 8 and the high-precision pressure sensor and bound. The high-precision pressure sensor is electrically connected to the PLC controller, and the computer is electrically connected to the PLC controller. Move the left-side limit rod 18 to one side, separating the limit rod 18 from the slot and limit block 16. The impact hammer 14 slides downwards along the smooth stainless steel rod 13 under its own weight, impacting the safety helmet 9 to facilitate a puncture test. The high-precision pressure... The sensor detects the instantaneous pressure of the impact hammer 14 on the safety helmet 9. After detection, the impact hammer 14 is slid upward along the smooth stainless steel rod 13 and limited by the locking mechanism. A new safety helmet 9 is then installed, and the handwheel 11 and rotating rod 10 are turned. The rotating rod 10 can drive the mounting plate 12, smooth stainless steel rod 13, impact hammer 14, and cone 15 to rotate, making it easy to adjust the cone 15 to be directly above the safety helmet 9. The positions of the impact hammer 14 and the cone 15 are swapped, and the locking block 20 is locked inside the limiting hole 22 under the elastic force of the inner spring, which facilitates the limiting of the rotating column 21 and the rotating rod 10, and facilitates the replacement of the cone 15. The cone 15 is positioned directly above the safety helmet 9. By separating the limiting rod 18 from the limiting block 16, the cone 15 can impact the safety helmet 9, facilitating puncture tests. The smooth stainless steel rod 13 guides and limits the impact hammer 14 and the cone 15, allowing them to impact and puncture the safety helmet 9 while preventing them from flying outwards. The fixed baffle 4, the movable baffle 5, and the housing 1 work together to prevent helmet fragments from flying outwards, ensuring the safety of surrounding personnel and improving the practicality of the device.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A safety helmet testing device comprising a test box and a test mechanism (6) provided inside the test box, characterized in that, The test chamber includes a chamber body (1), a top plate (3), a fixed baffle (4), and a movable baffle (5). The test mechanism (6) includes a rotating rod (10), a mounting plate (12), a smooth stainless steel rod (13), an impact hammer (14), a cone (15), and a limiting mechanism. An L-shaped seat (7) is fixedly installed at the bottom of the inner side of the chamber body (1). The rotating rod (10) is rotatably installed between the top plate (3) and the L-shaped seat (7). The limiting mechanism is installed between the bottom end of the rotating rod (10) and the L-shaped seat (7). The mounting plate (12) is fixedly installed on the outer side of the upper end of the rotating rod (10). The smooth stainless steel rod (13) is symmetrically fixed on both sides of the bottom of the mounting plate (12). The impact hammer (14) and the cone (15) are slidably installed on the smooth stainless steel rods (13) on both sides through sliding holes opened inside. A snap-fit ​​mechanism is provided between the top of the impact hammer (14) and the cone (15) and the mounting plate (12).

2. A safety hat testing apparatus as claimed in claim 1, wherein: The top four corners of the box (1) are fixedly provided with uprights (2), the top plate (3) is fixedly provided on the top of the uprights (2), and the fixed baffle (4) is fixedly provided on the left, right and rear sides of the uprights (2) corresponding to the top of the box (1).

3. A safety hat testing apparatus as claimed in claim 2, wherein: A movable baffle (5) is movably installed on the top of the front end of the box (1) via a hinge, and locks are provided between the two ends of the movable baffle (5) and the two fixed baffles (4) on both sides.

4. A safety hat testing apparatus as claimed in claim 1, wherein: A handwheel (11) is fixedly installed at the top of the rotating rod (10) above the top plate (3), and a rotating column (21) is fixedly installed at the bottom of the rotating rod (10) inside the L-shaped seat (7).

5. A safety hat testing apparatus as claimed in claim 4, wherein: The limiting mechanism includes a locking block (20) and a limiting hole (22). The limiting hole (22) is symmetrically opened inside both ends of the rotating column (21). The locking block (20) is slidably installed inside the L-shaped seat (7). An inner spring is fixedly installed between one end of the locking block (20) and the L-shaped seat (7). One end of the locking block (20) is engaged and installed inside the limiting hole (22).

6. The safety helmet testing device according to claim 1, characterized in that: The locking mechanism includes a limiting block (16), a limiting rod (18), and a guide rod (19). The limiting block (16) is fixedly installed on the top of the impact hammer (14) and the cone (15). A slot is provided on one side of the limiting block (16). The limiting rod (18) and the guide rod (19) are fixedly connected.

7. The safety helmet testing device according to claim 6, characterized in that: The mounting plate (12) has symmetrical fixed blocks (17) at the top of both ends. One end of the guide rod (19) is slidably installed inside the fixed block (17). The limiting rod (18) is "L" shaped. One end of the limiting rod (18) is fixedly installed with an outer spring corresponding to the outside of the guide rod (19) between the fixed block (17) and the limiting rod (18). One end of the limiting rod (18) is inserted into the slot.

8. The safety helmet testing device according to claim 1, characterized in that: A head mold (8) is fixedly installed at the top of one end of the L-shaped seat (7) corresponding to the bottom of the impact hammer (14). The pointed cone (15) is located above the other end of the L-shaped seat (7). A safety helmet (9) is installed on the top of the head mold (8).

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