CN220473255U

CN220473255U - Puncture testing device for safety helmet

Info

Publication number: CN220473255U
Application number: CN202322051415.9U
Authority: CN
Inventors: 张龙威
Original assignee: Jingzhou Taike Sporting Goods Co ltd
Current assignee: Jingzhou Taike Sporting Goods Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-09
Anticipated expiration: 2033-07-31

Abstract

The utility model relates to the technical field of helmet testing and discloses a safety helmet puncture testing device, which comprises a testing table, wherein a stand column and a head die close to the stand column are fixed on the testing table, a cantilever vertical to the stand column is connected to the stand column in a sliding manner, a vertical screw rod is connected to the stand column in an rotating manner, a motor for driving the vertical screw rod to rotate is arranged on the stand column, a lifting seat is connected to the vertical screw rod in a threaded manner, the lifting seat is fixedly connected to the cantilever, a movable seat is connected to the cantilever in a sliding manner, an electromagnetic chuck is arranged at the bottom of the movable seat, a pointed cone is adsorbed at the bottom of the electromagnetic chuck, a connecting seat is connected to the bottom of the head die in a rotating manner, and an adjusting seat fixed to the testing table is hinged to the connecting seat. The utility model has the following advantages and effects: the puncture test can be conveniently carried out on the helmet in all directions, and the safety of the helmet is ensured.

Description

Puncture testing device for safety helmet

Technical Field

The utility model relates to the technical field of helmet testing, in particular to a puncture testing device for a safety helmet.

Background

The main purpose of the helmet is to protect the head of the occupant in the event of an impact, to prevent or mitigate injury or even to save the life of the occupant. Compared with the automobile, the motorcycle has weaker safety and stability, and the automobile body is not provided with a protection device. During high speed travel, drivers and riders on motorcycles are often thrown out upon collision. For motorcycle drivers, the helmet is the most effective safety protection measure for protecting the head, and the qualified helmet can effectively protect the head safety of vehicle-mounted personnel when a collision accident occurs, lighten the strong impact force on the head when a violent collision occurs or prevent sharp objects from directly penetrating the head. The quality of the steel cone in the helmet puncture resistance detection equipment is a fixed value regulated by national standards, and compared with a falling ball test, the steel cone needs to be kept in a vertical state in the falling impact process.

The Chinese patent with the issued notice number of CN210834511U discloses a device for detecting the puncture resistance of a helmet, which comprises a stand column and a head die, wherein a cantilever and a cantilever braking device are arranged on the stand column; the end of the cantilever is sleeved with a steel cone; the steel cone is vertically arranged and is positioned right above the head die, and the steel cone and the cantilever are mutually limited by a limiting disengaging converter; the cantilever can slide vertically along the upright post; the steel cone can be separated from the limiting separation converter and impact the head die. The above device has the following disadvantages: when the steel cone descends, the puncture test can only be carried out on the top of the helmet, the accident situation is various in reality, and sharp objects possibly attack from all directions of the helmet, so that the puncture test is not complete enough only on the top of the helmet, and the comprehensive safety of the helmet cannot be guaranteed.

Disclosure of Invention

The utility model aims to provide a puncture testing device for a safety helmet, which has the effects of being convenient for performing puncture testing on the helmet in all directions and ensuring the safety of the helmet.

The technical aim of the utility model is realized by the following technical scheme: including the testboard, be fixed with the stand on the testboard and be close to the head mould of stand, sliding connection has the perpendicular to on the stand the cantilever of stand, the stand internal rotation is connected with vertical lead screw, install the drive on the stand vertical lead screw pivoted motor, threaded connection has the elevating socket on the vertical lead screw, elevating socket fixedly connected with in the cantilever, sliding connection has the movable seat on the cantilever, electromagnetic chuck is installed to movable seat bottom, electromagnetic chuck bottom adsorbs there is the pointed cone, head mould bottom rotates and is connected with the connecting seat, the connecting seat hinge has be fixed in the regulating seat of testboard, be equipped with the regulating cavity in the regulating seat, the connecting seat is fixed with and stretches into the link of regulating cavity, regulating cavity internal rotation is connected with adjusting screw one, a threaded connection has the movable block of adjusting screw, the movable block both sides are fixed with the connecting rod, the link bottom is equipped with the confession the notch of connecting rod embedding.

By adopting the technical scheme, the helmet is placed on the head die, the helmet pull belt is used for locking, the motor drives the vertical screw rod to rotate to drive the lifting seat to move to the upper side, so that the pointed cone is positioned above the helmet, then the electromagnetic chuck is powered off and the magnetic force disappears, the adsorbed pointed cone falls from the upper side to penetrate into the helmet for puncture test, and the falling height of the pointed cone can be quickly adjusted as required; the adjusting screw in the adjusting cavity is rotated to enable the moving block to move on the adjusting screw, the connecting frame is driven to rotate through the connecting rod when the moving block moves, the connecting frame drives the connecting seat to rotate around the adjusting seat, so that the head die rotates to change the inclination angle of the helmet, the moving seat slides on the cantilever to enable the pointed cone to be aligned with different position points on the helmet to puncture, and the structure can facilitate omnibearing puncture test on the helmet and ensure the safety of the helmet.

The utility model is further provided with: the cantilever is rotationally connected with a second adjusting screw rod perpendicular to the vertical screw rod, one end of the second adjusting screw rod extends out of the cantilever, the movable seat is in threaded connection with the second adjusting screw rod, and a second moving hole for the movable seat to move is formed in the cantilever.

Through adopting above-mentioned technical scheme, rotate adjusting screw two can make the movable seat remove on adjusting screw two to can aim at the puncture point of different positions on the head mould when the head mould rotates the slope.

The utility model is further provided with: and a graduated scale is arranged on the upright post along the vertical direction.

By adopting the technical scheme, the puncture force during the descent of the pointed cone can be calculated according to the height measurement of the ascending of the pointed cone according to the graduated scale, so that the puncture test data is clearer.

The utility model is further provided with: the adjusting seat is provided with a dial, and the connecting seat is fixedly provided with a finger rod extending to the dial.

Through adopting above-mentioned technical scheme, when the link rotates around adjusting the seat, drive the finger and rotate on adjusting the seat, according to the angle that the calibrated scale can know the finger pivoted, can clearly learn the angle of rotating the head mould.

The utility model is further provided with: the rotary shaft is fixed at the bottom of the head die, a cavity for the rotary shaft to extend in is arranged in the connecting seat, and a fixing bolt which extends into the cavity and abuts against the rotary shaft is connected to the connecting seat in a threaded mode.

Through adopting above-mentioned technical scheme, can 360 degrees rotations head mould as required, also can be according to helmet size quick replacement head mould simultaneously, rotate or use fixing bolt to fix after changing the head mould.

The utility model is further provided with: the movable seat is provided with a vertical hole, a connecting rope with the end part fixed with the pointed cone is inserted in the vertical hole, and a limiting plate is fixed at one end, far away from the pointed cone, of the connecting rope.

Through adopting above-mentioned technical scheme, when the pointed cone falls from the eminence, drive the connecting rope and move downwards through vertical hole, make pointed cone be difficult to break away from original whereabouts orbit, the pulling limiting plate also makes pointed cone again adsorbed in electromagnet below easily simultaneously, and pointed cone and movable seat bind also make pointed cone can not lose at will through connecting the rope.

The beneficial effects of the utility model are as follows:

1. the motor drives the vertical screw rod to rotate to drive the lifting seat to move to the upper part, so that the pointed cone is positioned above the helmet, then the power-off magnetic force of the electromagnetic chuck disappears, the adsorbed pointed cone falls from the upper part to penetrate into the helmet for puncture test, and the falling height of the pointed cone can be adjusted as required;

2. the first adjusting screw rod in the adjusting cavity is rotated to enable the head die to rotate to change the inclination angle of the helmet, the movable seat is slid on the cantilever to enable the pointed cone to be aligned with different position points on the helmet for puncturing, the structure can facilitate omnibearing puncture test on the helmet, safety of the helmet is ensured, the second adjusting screw rod is rotated to enable the movable seat to move on the second adjusting screw rod, and therefore puncturing points of different positions on the head die can be aligned when the head die rotates and inclines;

3. when the pointed cone falls from a high place, the connecting rope is driven to move downwards through the vertical hole, so that the pointed cone is not easy to separate from the original falling track, and meanwhile, the pointed cone is also easy to be adsorbed below the electromagnetic chuck by pulling the limiting plate, and the pointed cone and the movable seat are bound through the connecting rope, so that the pointed cone cannot be lost at will.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of the present embodiment 1.

Fig. 2 is a schematic side view of the present embodiment 1.

Fig. 3 is a schematic diagram illustrating the connection relationship between the connection base and the adjustment base in embodiment 1.

In the figure, 1, a test bench; 2. a column; 3. a head mold; 4. a cantilever; 5. a vertical screw rod; 6. a motor; 7. a lifting seat; 8. a movable seat; 9. an electromagnetic chuck; 10. a pointed cone; 11. a connecting seat; 12. an adjusting seat; 13. a regulating chamber; 14. a connecting frame; 15. adjusting the first screw rod; 16. a moving block; 17. a connecting rod; 18. a notch; 19. adjusting a second screw rod; 20. a finger; 21. a rotating shaft; 22. a fixing bolt; 23. a vertical hole; 24. a connecting rope; 25. and a limiting plate.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Embodiment 1, a safety helmet puncture testing arrangement, as shown in fig. 1-3, including testboard 1, be fixed with stand 2 and be close to the head mould 3 of stand 2 on the testboard 1, sliding connection has the cantilever 4 of perpendicular to stand 2 on the stand 2, stand 2 swivelling joint has vertical lead screw 5, install the motor 6 that drives vertical lead screw 5 pivoted on the stand 2, threaded connection has elevating socket 7 on the vertical lead screw 5, elevating socket 7 fixed connection is in cantilever 4, sliding connection has movable seat 8 on the cantilever 4, electromagnetic chuck 9 is installed to movable seat 8 bottom, electromagnetic chuck 9 adsorbs the pointed cone 10, the head mould 3 bottom rotates and is connected with connecting seat 11, connecting seat 11 articulates the regulation seat 12 that is fixed in testboard 1, be equipped with adjusting chamber 13 in the regulation seat 12, connecting seat 11 is fixed with the link 14 that stretches into adjusting chamber 13, adjusting chamber 13 swivelling joint has adjusting screw one 15, adjusting screw one 15 threaded connection has movable block 16, both sides are fixed with connecting rod 17, link 14 bottom is equipped with the notch 18 that supplies connecting rod 17 to imbeds.

Further, an adjusting screw II 19 perpendicular to the vertical screw rod 5 is rotationally connected to the cantilever 4, one end of the adjusting screw II 19 extends out of the cantilever 4, the movable seat 8 is in threaded connection with the adjusting screw II 19, and a movable hole II for the movable seat 8 to move is formed in the cantilever 4.

Further, a scale is arranged on the upright post 2 along the vertical direction.

Further, a dial is provided on the adjusting seat 12, and a finger 20 extending to the dial is fixed on the connecting seat 11.

Further, a rotating shaft 21 is fixed at the bottom of the head die 3, a cavity for the rotating shaft 21 to extend in is arranged in the connecting seat 11, and a fixing bolt 22 extending into the cavity and propped against the rotating shaft 21 is connected to the connecting seat 11 in a threaded manner.

Further, a vertical hole 23 is formed in the movable seat 8, a connecting rope 24 with the end part fixed with the pointed cone 10 is inserted into the vertical hole 23, and a limiting plate 25 is fixed at one end, far away from the pointed cone 10, of the connecting rope 24.

The working principle of the utility model is as follows: the helmet is placed on the head die 3, the first adjusting screw 15 in the adjusting cavity 13 is locked by using the helmet pulling belt, the moving block 16 moves on the first adjusting screw 15, the connecting frame 14 is driven to rotate by the connecting rod 17 when the moving block 16 moves, the connecting frame 14 drives the connecting seat 11 to rotate around the adjusting seat 12, so that the head die 3 rotates to change the inclination angle of the helmet, then the second adjusting screw 19 is rotated to enable the moving seat 8 to move on the second adjusting screw 19, the piercing points at different positions on the head die 3 are aligned, the motor 6 drives the vertical screw 5 to rotate to drive the lifting seat 7 to move to the upper side, the pointed cone 10 is located above the helmet, then the electromagnetic chuck 9 is powered off and magnetic force disappears, the adsorbed pointed cone 10 falls from the upper side to pierce the helmet for piercing test, the falling height of the pointed cone 10 can be quickly adjusted as required, the piercing test is convenient to carry out the piercing test on the helmet in all directions, and the safety of the helmet is ensured.

Claims

1. The utility model provides a safety helmet puncture testing arrangement, includes testboard (1), its characterized in that: the test bench (1) is fixedly provided with a stand column (2) and a head die (3) which is close to the stand column (2), the stand column (2) is connected with a cantilever (4) which is perpendicular to the stand column (2) in a sliding manner, the stand column (2) is connected with a vertical screw rod (5) in a rotating manner, the stand column (2) is provided with a motor (6) which drives the vertical screw rod (5) to rotate, the vertical screw rod (5) is connected with a lifting seat (7) in a threaded manner, the lifting seat (7) is fixedly connected with the cantilever (4), the cantilever (4) is connected with a moving seat (8) in a sliding manner, the bottom of the moving seat (8) is provided with an electromagnetic chuck (9), a pointed cone (10) is adsorbed at the bottom of the electromagnetic chuck (9), the bottom of the head die (3) is connected with a connecting seat (11) in a rotating manner, the connecting seat (11) is hinged with an adjusting seat (12) which is fixed on the test bench (1), an adjusting cavity (13) is arranged in the adjusting seat (12), the connecting seat (11) is fixedly provided with a lifting seat (7), the adjusting seat (11) is fixedly connected with an adjusting screw rod (15) which is connected with an adjusting screw rod (15), connecting rods (17) are fixed on two sides of the moving block (16), and notches (18) for embedding the connecting rods (17) are formed in the bottoms of the connecting frames (14).

2. A safety helmet penetration test apparatus according to claim 1, wherein: the cantilever (4) is rotationally connected with a second adjusting screw (19) perpendicular to the vertical screw rod (5), one end of the second adjusting screw (19) extends out of the cantilever (4), the movable seat (8) is in threaded connection with the second adjusting screw (19), and the cantilever (4) is provided with a second moving hole for the movable seat (8) to move.

3. A safety helmet penetration test apparatus according to claim 1, wherein: and a graduated scale is arranged on the upright post (2) along the vertical direction.

4. A safety helmet penetration test apparatus according to claim 1, wherein: the adjusting seat (12) is provided with a dial, and the connecting seat (11) is fixedly provided with a finger rod (20) extending to the dial.

5. A safety helmet penetration test apparatus according to claim 1, wherein: the bottom of the head die (3) is fixedly provided with a rotating shaft (21), a cavity into which the rotating shaft (21) stretches is formed in the connecting seat (11), and a fixing bolt (22) which stretches into the cavity and abuts against the rotating shaft (21) is connected to the connecting seat (11) in a threaded mode.

6. A safety helmet penetration test apparatus according to claim 1, wherein: the movable seat (8) is provided with a vertical hole (23), a connecting rope (24) with the end part fixed with the pointed cone (10) is inserted in the vertical hole (23), and a limiting plate (25) is fixed at one end, far away from the pointed cone (10), of the connecting rope (24).