Key equipment for dynamic strength test based on wheeled riding toy

Abstract

The invention relates to the technical field of detection equipment, in particular to key equipment for dynamic strength test based on wheeled riding toys, which comprises a test working frame, the test working frame is provided with a first track group and a second track group, the first track group and the second track group are arranged in a layered manner, and the second track group is slidably provided with a horizontal platform; the horizontal platform is provided with a blocking positioning unit, limiting structures are arranged in four directions of the horizontal platform, the first rail group is provided with a speed adjusting system for driving the horizontal platform to reach a test speed, and the speed adjusting system comprises a sliding platform connected with the horizontal platform; according to the invention, a double-layer platform and double-track design is adopted, so that the test is more in line with an actual test environment, the operation is accurate, the safety performance during the equipment operation period is improved, and the equipment ensures the stability and safety of the baby carriage in the acceleration process through a reasonable structural design, thereby providing reliable experimental conditions for the collision test.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to a key equipment for dynamic strength testing of a wheeled riding toy. Background Art

[0002] Children's toy electric stroller collision tests usually follow a series of strict standards and specifications, which are designed to ensure the accuracy and reliability of the test while protecting children from injury. For example, the EU's EN71 standard is a set of mandatory safety standards for children's toy products, which covers physical, mechanical, chemical and electrical testing requirements.

[0003] In China, there are also corresponding standards and specifications to guide the collision test of children's toy electric strollers, such as "Toy Safety Part 2: Mechanical and Physical Properties".

[0004] Crash test equipment usually includes rigid barriers for simulating collisions, sensors for measuring velocity and acceleration, computer systems for recording and analyzing data, etc. These devices and technologies are constantly evolving to more accurately simulate actual collision situations and evaluate the safety performance of children's toy electric strollers.

[0005] Traditional collision tests may use rope traction, branch-shaped fixation of the stroller's direction, etc. to accelerate the stroller, but modern technology has introduced more advanced platforms and control systems to achieve more precise control of collision speed and angle.

[0006] As people's awareness of children's safety continues to increase, the importance of collision tests for children's toys and electric strollers has become increasingly prominent. In the future, it is foreseeable that collision tests will pay more attention to authenticity and simulation to more accurately reflect the collision conditions in actual road traffic.

[0007] However, collision tests also face some challenges. During the collision test, it is easy for the stroller to deviate from the collision area and fall over, requiring relevant operations to be performed again. The process is complicated and it is not easy to conduct the experiment.

[0008] In summary, the collision test of children's toys and electric strollers plays an important role in ensuring children's safety. By continuously optimizing test equipment and technology, updating standards and specifications, and strengthening policy and regulatory support, we can expect greater progress and breakthroughs in the collision test of children's toys and electric strollers in the future. Summary of the invention

[0009] The present invention aims at the technical problems existing in the prior art and provides a key device for dynamic strength testing of a wheeled riding toy to solve the problems that during a baby carriage collision test, the baby carriage is prone to deviate from the collision area, the baby carriage is prone to tipping over, and relevant operations need to be performed again, the process is complicated, and the experiment is difficult to conduct.

[0010] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a key device for dynamic strength testing of wheeled riding toys, including a test workbench, the test workbench is provided with a first track group and a second track group along the length direction, the first track group and the second track group are arranged in layers, the second track group is slidably provided with a horizontal platform, the horizontal platform is provided with a blocking positioning unit for adjusting the position of the baby stroller according to the size of the baby stroller, and the horizontal platform is provided with limiting structures on the four directions of the horizontal platform for adjusting the position of the blocking positioning unit to prevent the baby stroller from tipping over and lateral deviation during acceleration; the first track group is provided with a speed adjustment system for driving the horizontal platform to reach the test speed, and the speed adjustment system includes a sliding platform connected to the horizontal platform; the double-layer platform and double-track design are adopted to make the test more in line with the actual test environment and the operation more accurate, thereby improving the safety performance during equipment operation.

[0011] More specifically, the speed adjustment system also includes a driving chain disposed on both sides of the first track set and connected to the first track set, a transmission shaft drivingly connected to the two driving chains, and a motor driving the transmission shaft.

[0012] More specifically, a guard is provided on the test work frame on the sides of the two drive chains.

[0013] More specifically, the limiting structure includes threaded holes evenly distributed on the horizontal platform.

[0014] More specifically, the blocking and positioning unit includes a rear baffle and a side baffle, which are respectively fixed to the horizontal platform by screws. The rear baffle can prevent the stroller from overturning due to inertia, and the side baffle prevents the stroller from lateral deviation during acceleration and limits the lateral movement of the stroller, thereby ensuring that the stroller maintains linear motion.

[0015] More specifically, the rear baffle and the side baffle both include a clamping plate and a positioning block arranged on the clamping plate. The clamping plate is symmetrically provided with a group of strip grooves, which can adapt to the threaded holes at various positions to adjust the different positions of the positioning blocks.

[0016] More specifically, a plurality of striking seats are provided on the test workbench away from one end of the transmission shaft. The plurality of striking seats are arranged side by side along the width direction of the test workbench, and the plurality of striking seats are connected with striking blocks. An elastic member is provided on each striking seat on the lower side of the striking block. During testing, the horizontal platform collides with the elastic member.

[0017] More specifically, a dust cover is provided on a test work frame at one end of the transmission shaft, the transmission shaft and the motor are arranged in the dust cover, and grooves for the movement of the drive chain are provided on both sides of the dust cover.

[0018] More specifically, it also includes a control system, which controls the operation of the motor. The control system includes a control device with a touch screen, on which a control button is provided. The control system also includes a proximity switch, which is provided on a test workbench near one side of the dust cover. When the proximity switch senses the sliding platform, the proximity switch feeds back a signal to the control device, and the control device controls the motor to stop operating.

[0019] The beneficial effects of the present invention are as follows: by designing a reasonable blocking positioning unit and a limiting structure, the stability and linear motion of the baby stroller during the collision test are ensured, thereby improving the accuracy and repeatability of the experiment. Secondly, the double-layer platform and track design make the test more in line with the actual test environment, the operation is more accurate, and the safety performance during the operation of the equipment is improved. In addition, the design of the control system makes the entire test process more automated, reduces human intervention, and improves experimental efficiency. In short, the present invention not only solves the problems existing in the prior art, but also provides an efficient, safe and accurate testing equipment for baby stroller collision experiments. In summary, the equipment ensures the stability and safety of the baby stroller during the acceleration process through a reasonable structural design, thereby providing reliable experimental conditions for the collision test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] See also Figure 1 and Figure 2The present embodiment provides a key device for dynamic strength testing of a wheeled ride-on toy, including a test workbench 10 surrounded by a plurality of profiles, a test guide groove 100 is formed on the lower side of the test workbench 10 along the length direction, and two groups of tracks are arranged in the test guide groove 100 along its length direction, namely a first track group 101 and a second track group 102, and the first track group 101 and the second track group 102 are arranged in layers; wherein a horizontal platform 20 is slidably arranged on the second track group 102, and the horizontal platform 20 is used to carry a baby carriage and drive the baby carriage to complete a collision test, and the horizontal platform 20 is designed with a blocking and positioning unit 30 for adjusting the position according to the size of the baby carriage and fixing the baby carriage; in order to prevent the baby carriage from tipping over and lateral deviation during acceleration, a limit structure 201 for adjusting the position of the blocking and positioning unit 30 is provided in four directions of the horizontal platform 20.

[0024] In addition, a speed adjustment system for driving the horizontal platform 20 to reach a desired test speed is provided on the first track group 101. The speed adjustment system includes a sliding platform 40 connected to the horizontal platform 20 and a driving chain (not shown in the figure) provided on both sides of the first track group 101 and connected thereto, as well as a transmission shaft 401 connected to the two driving chains (not shown in the figure) and a motor 402 driving the transmission shaft 401. Driven gears connected to the two driving chains (not shown in the figure) are provided on both sides of the transmission shaft 401, and a first driving gear is provided in the middle of the transmission shaft 401. A second driving gear is installed on the output shaft of the motor 402. The first driving gear and the second driving gear are connected to an active transmission chain. The transmission shaft 401 is driven by the motor 402 to drive the driving chains (not shown in the figure) on both sides, so that the driving chain (not shown in the figure) drives the sliding platform 40 to move along the first track group 101, thereby pushing the horizontal platform 20 to move along the second track group 102. By controlling the transmission speed of the motor 402, the horizontal platform 20 reaches the desired test speed.

[0025] Further, a dust cover 403 is installed on the test work frame 10 at one end of the transmission shaft 401, the effect of the dust cover 403 is to protect the transmission shaft 401 and the motor 402, prevent dust and foreign matter from entering, thereby ensure the normal operation of the equipment and extend the service life, the transmission shaft 401 and the motor 402 are all placed in the inside of the dust cover 403, and can effectively isolate the pollution of the outside world. In addition, in order to ensure the smooth operation of the transmission system, the two sides of the dust cover 403 are specially designed with notches for the activity of the drive chain (not shown), and the test work frame 10 on the side of the two drive chains (not shown) is provided with a shield 103, and the shield 103 can not only prevent dust, foreign matter, etc. from entering the inside of the equipment, but also can reduce noise to a certain extent, and provide a safer and more comfortable working environment for the operator. Through this setting, the whole transmission system can be more efficiently and stably completed various test tasks under the protection of the dust cover 403 and the shield 103.

[0026] In order to further improve the automation and safety of the test, a control system is also included, which controls the operation of the motor 402, including a control device 50 with a touch screen, and a control button is provided on the control device 50; the control system also includes a proximity switch, which is arranged on the test workbench 10 near the side of the dust cover 403. When the proximity switch senses the sliding platform 40, the proximity switch feeds back a signal to the control device 50, and the control device 50 controls the motor 402 to stop operating. The control device 50 with a touch screen not only provides a user-friendly operation interface, but also allows the operator to easily configure parameters and monitor the test process in real time. In addition, the control system also integrates advanced fault diagnosis functions, which can monitor the status of the motor 402 and the proximity switch in real time. When any abnormal situation is detected, the system will immediately sound an alarm and take corresponding protective measures to prevent equipment damage and avoid potential safety accidents. Through this setting, the test equipment can operate in an efficient and stable manner, significantly improving the reliability and repeatability of the test.

[0027] In summary, the double-layer platform and double-track design make the test more in line with the actual test environment, the operation is accurate, and the safety performance during the operation of the equipment is improved. In addition, the laying of the double-layer track effectively improves the hardness and stability of the horizontal platform 20 and the sliding platform 40 to ensure that there will be no deformation or shaking during the acceleration process, so that the baby carriage can move smoothly, reduce the friction between the sliding platform 40 and the ground, and enable the baby carriage to reach the required speed (2m / s) faster. In addition, in order to enable the baby carriage to reach the required speed faster, it can be achieved by using smooth materials, lubricants or pneumatic suspension and other technologies on the first track group 101 and the second track group 102.

[0028] Furthermore, the limiting structure 201 includes threaded holes evenly arranged on the horizontal platform 20, and these threaded holes can facilitate the adjustment of the position of the blocking and positioning unit 30. The blocking and positioning unit 30 includes a rear baffle and a side baffle, which are respectively fixed to the horizontal platform 20 by screws; the rear baffle provides sufficient support to prevent the baby carriage from tipping over due to inertia during acceleration, and the side baffles limit the lateral movement of the baby carriage to ensure that the baby carriage maintains linear motion, thereby ensuring the accuracy of the collision test.

[0029] In an optional embodiment, the rear baffle and the side baffle both include a clamping plate and a positioning block arranged on the clamping plate. The clamping plate is symmetrically provided with a group of strip grooves, through which the threaded holes at various positions can be adapted to adjust the different positions of the positioning blocks. In this way, the position of the positioning block can be adjusted according to actual needs to ensure that the baffle can better fix and support related components.

[0030] In addition, a plurality of striking seats 60 are provided on the test work frame 10 away from one end of the transmission shaft 401. These striking seats 60 are arranged side by side along the width direction of the test work frame 10. A striking block 601 is connected to the plurality of striking seats 60, and an elastic member 602 is provided on each striking seat 60 below the striking block 601, so that the horizontal platform 20 collides with the elastic member 602 during the test, thereby reducing damage to the test platform. In this embodiment, the elastic member 602 is made of elastomeric rubber; in other embodiments, the elastic member 602 may be made of a silicone block or a rubber block.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Key equipment for dynamic strength testing of wheeled ride-on toys, characterized in that: The utility model comprises a test work frame, which is provided with a first track group and a second track group along the length direction, the first track group and the second track group are arranged in layers, the second track group is slidably provided with a horizontal platform, the horizontal platform is provided with a blocking positioning unit which adjusts the position according to the size of the baby carriage and fixes the baby carriage, and the horizontal platform is provided with limiting structures on four directions for adjusting the position of the blocking positioning unit to prevent the baby carriage from tipping over and shifting sideways during acceleration; the first track group is provided with a speed regulating system which drives the horizontal platform to reach the test speed, and the speed regulating system comprises a sliding platform connected to the horizontal platform; the double-layer platform and double-track design are adopted to make the test more in line with the actual test environment and the operation more accurate, thereby improving the safety performance during the operation of the equipment.

2. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 1, characterized in that: The speed regulating system also includes driving chains arranged on both sides of the first track group and connected to the first track group, a transmission shaft drivingly connected to the two driving chains, and a motor driving the transmission shaft.

3. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 2, characterized in that: A guard is provided on the test work frame on the sides of the two drive chains.

4. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 1, characterized in that: The limiting structure comprises threaded holes evenly arranged on the horizontal platform.

5. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 4, characterized in that: The blocking and positioning unit includes a rear baffle and a side baffle, which are respectively fixed to the horizontal platform by screws. The rear baffle can prevent the stroller from overturning due to inertia, and the side baffle prevents the stroller from lateral deviation during acceleration and limits the lateral movement of the stroller, thereby ensuring that the stroller maintains linear motion.

6. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 5, characterized in that: The rear baffle and the side baffle both include a clamping plate and a positioning block arranged on the clamping plate. The clamping plate is symmetrically provided with a group of strip grooves, which can adapt to the threaded holes at various positions to adjust the different positions of the positioning blocks.

7. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 2, characterized in that: A plurality of striking seats are provided on the test work frame away from one end of the transmission shaft. The plurality of striking seats are arranged side by side along the width direction of the test work frame, and the plurality of striking seats are connected with striking blocks. An elastic member is provided on each striking seat on the lower side of the striking block. During testing, the horizontal platform collides with the elastic member.

8. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 7, characterized in that: A dust cover is arranged on a test work frame at one end of the transmission shaft, the transmission shaft and the motor are arranged in the dust cover, and grooves for the movement of the driving chain are arranged on both sides of the dust cover.

9. The key equipment for dynamic strength testing of a wheeled ride-on toy according to claim 7, characterized in that: It also includes a control system, which controls the operation of the motor. The control system includes a control device with a touch screen, on which a control button is provided. The control system also includes a proximity switch, which is provided on a test workbench close to one side of the dust cover. When the proximity switch senses the sliding platform, the proximity switch feeds back a signal to the control device, and the control device controls the motor to stop operating.

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