A dynamic load testing machine for baby carriers

Abstract

The utility model belongs to children's article safety detection equipment field especially relates to a baby carrier dynamic load testing testing machine, including support platform, support shell, connecting seat, manikin and screw rod etc.

Description

Technical Field

[0001] This utility model belongs to the field of children's product safety testing equipment, and in particular relates to a dynamic load testing machine for baby carriers. Background Technology

[0002] A baby carrier is an assistive tool used by parents or caregivers to secure an infant or toddler to their body. It typically consists of fabric, shoulder straps, a waist belt, and fastening buckles. It allows the baby to be safely strapped to the adult in various positions, facilitating daily outings, caregiving, or household chores. Dynamic load testing involves applying periodically varying loads to a product under simulated real-world conditions to assess its structural strength, durability, and long-term reliability. Dynamic load testing is crucial for baby carriers.

[0003] Existing baby carrier dynamic testing machines typically involve placing the baby carrier on a mannequin and filling it with spherical weights to simulate the baby's weight. Once the machine is activated, the weights are periodically pulled and released, causing them to move up and down to simulate the dynamic load generated when the baby walks with an adult. However, the fixed amplitude and limited range of the weight movement in the testing machine result in a overly simplistic dynamic force variation pattern. In real-world scenarios, babies move in a variety of complex and varied ways within the carrier, such as sudden twisting and large stretching. Existing testing methods struggle to realistically simulate these movements, leading to test results that fail to accurately reflect the baby carrier's true performance under various complex dynamic conditions. This, in turn, interferes with the accuracy of assessing key indicators such as the baby carrier's safety and durability.

[0004] Therefore, there is a particular need for a dynamic load testing machine for baby carriers to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing baby carrier dynamic testing machines, such as fixed range of motion of the weight block, limited range, and simple dynamic force change, which make it difficult to realistically simulate the complex movements of infants and affect the accuracy of evaluation of key indicators of baby carriers, this utility model provides a baby carrier dynamic load testing machine.

[0006] This utility model is achieved through the following technical means: a dynamic load-bearing testing machine for infant carriers, comprising a support platform, a support shell, a connecting seat, a human body model, a support plate, a servo motor, a lead screw, a connecting plate, a guide plate, a control console, and a rotating assembly. The connecting seat is rotatably disposed on the upper part of the support platform, and the support shell is installed on the top of the connecting seat. Two lead screws are arranged side by side and threaded inside the support shell, with one end of each lead screw extending to the outside of the support shell. The human body model is rotatably disposed between one end of the two lead screws. The support plate is fixedly connected to the lower inner part of the human body model, and two servo motors are installed on it side by side. The output shafts of the servo motors extend downward through the human body model and are fixedly connected to the corresponding lead screws. The connecting plate is installed at the bottom end of the human body model. The guide plate is slidably disposed inside the support shell, with one end extending to the outside of the support shell and rotatably connected to the connecting plate. The control console is disposed on one side of the support platform, and the servo motor is electrically connected to the control console. The rotating assembly is disposed between the support platform and the connecting seat.

[0007] Furthermore, the rotating assembly includes a gear ring, a motor, and a spur gear. The gear ring is fixed to the lower part of the connecting seat, the motor is mounted on the upper side of the support platform with its output shaft extending upward, the motor is electrically connected to the control console, and the spur gear is fixed to the output shaft of the motor and located behind the gear ring, with the two meshing with each other.

[0008] Furthermore, it also includes a buffer pad, with a buffer pad fixed to the outside of each lead screw, and the buffer pad forms a tight contact with the top of the support shell.

[0009] Furthermore, it also includes a protective shell, which is fixed to the lower side of the support shell.

[0010] Furthermore, a limiting structure is provided at the other end of the guide plate.

[0011] Furthermore, the gear ring and the spur gear have the same thickness.

[0012] Beneficial effects: By using a servo motor to drive the human body model to move up and down, the bouncing motion of an infant walking with an adult is simulated. The rotating component drives the human body model to rotate, thus reproducing complex behaviors such as the twisting of an infant's body. This test method, which combines up-and-down bouncing and rotation, can more comprehensively reflect the dynamic characteristics of an infant in actual use, improve the authenticity and accuracy of the test, and thus better evaluate the performance of the baby carrier in complex dynamic environments. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the support platform, support shell, and connecting seat of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the gear ring, motor, and spur gear.

[0016] Figure 4 This is a partial cross-sectional view of the human body model component of this utility model.

[0017] Figure 5 This is a partial sectional view of the support shell, connecting seat, and human body model components of this utility model.

[0018] Reference numerals: 1. Support platform, 2. Support shell, 201. Connecting seat, 3. Human body model, 301. Support plate, 4. Servo motor, 5. Lead screw, 6. Buffer pad, 7. Connecting plate, 8. Guide plate, 9. Control console, 10. Protective shell, 11. Gear ring, 12. Motor, 13. Spur gear. Detailed Implementation

[0019] Example: A dynamic load-bearing testing machine for infant carriers, such as... Figures 1-5 As shown, the system includes a support platform 1, a support shell 2, a connecting seat 201, a human body model 3, a support plate 301, a servo motor 4, lead screws 5, buffer pads 6, a connecting plate 7, a guide plate 8, a control console 9, and a rotating assembly. The connecting seat 201 is rotatably mounted on the upper part of the support platform 1. The support shell 2 is bolted to the top of the connecting seat 201. Two lead screws 5 are threaded side by side inside the support shell 2, with the upper end of each lead screw 5 extending to the outside of the support shell 2. A buffer pad 6 is fixedly connected to the outside of each lead screw 5, forming a tight contact with the top of the support shell 2, thereby sealing the connection gap between the lead screw 5 and the support shell 2 and preventing external dust from entering the interior of the support shell 2. The human body model 3 is rotatably mounted on the upper part of the two lead screws 5. Between the ends, the support plate 301 is fixedly connected to the lower inner part of the human body model 3, and two servo motors 4 are bolted to it. The output shaft of the servo motor 4 extends downward to the human body model 3 and is fixedly connected to the corresponding lead screw 5. The connecting plate 7 is bolted to the bottom end of the human body model 3. The guide plate 8 is slidably disposed inside the support shell 2, and its upper end extends to the outside of the support shell 2 and is rotatably connected to the connecting plate 7. The sliding of the guide plate 8 provides guidance for the up and down movement of the human body model 3. The lower end of the guide plate 8 is provided with a limiting structure to prevent the guide plate 8 from detaching from the support shell 2. The control console 9 is placed on the right side of the support platform 1. The servo motor 4 is electrically connected to the control console 9. The rotating component is disposed between the support platform 1 and the connecting seat 201.

[0020] like Figure 2 and Figure 3As shown, the rotating assembly includes a protective shell 10, a gear ring 11, a motor 12, and a spur gear 13. The gear ring 11 is fixedly connected to the lower part of the connecting seat 201. The motor 12 is bolted to the upper rear side of the support platform 1, and its output shaft extends upward. The motor 12 is electrically connected to the control console 9. The spur gear 13 is fixedly connected to the output shaft of the motor 12 and is located behind the gear ring 11. The two mesh with each other. When the motor 12 is running, the spur gear 13 drives the gear ring 11 to rotate, thereby causing the connecting seat 201 and the human body model 3 on it to rotate. The gear ring 11 and the spur gear 13 have the same thickness. The protective shell 10 is fixedly connected to the lower rear side of the support shell 2 and covers the spur gear 13.

[0021] When testing is required, the baby carrier is first worn on the mannequin 3. Then, a weight is placed inside the baby carrier to simulate the baby's weight. After placement, the servo motor 4 is started via the control console 9. The output shaft of the servo motor 4 drives the lead screw 5 to rotate clockwise and counterclockwise. The rotation of the lead screw 5 drives the mannequin 3 to move up and down in the vertical direction, simulating the up-and-down bouncing motion of a baby in the carrier when an adult walks. At the same time, the motor 12 is started. The output shaft of the motor 12 drives the spur gear 13 to rotate. The spur gear 13 meshes with the gear ring 11, thereby rotating the gear ring 11 and the connecting seat 201, which in turn drives the mannequin 3 to rotate in the horizontal direction. The combination of the up-and-down bouncing and rotational motion of the mannequin 3 can more comprehensively and realistically simulate the complex and varied movements of a baby in actual use scenarios, such as the up-and-down bouncing and body twisting when walking with an adult. During the test, the control console 9 controls the operation of the servo motor 4 and the motor 12 in real time, and accurately collects and records the test data. After the test is completed, the servo motor 4 and the motor 12 are turned off.

Claims

1. A dynamic load-bearing testing machine for infant carriers, characterized in that, The system includes a support platform (1), a support shell (2), a connecting seat (201), a human body model (3), a support plate (301), a servo motor (4), lead screws (5), a connecting plate (7), a guide plate (8), a control console (9), and a rotating assembly. The connecting seat (201) is rotatably mounted on the upper part of the support platform (1). The support shell (2) is mounted on the top of the connecting seat (201). Two lead screws (5) are threaded side by side inside the support shell (2), with one end of each lead screw (5) extending to the outside of the support shell (2). The human body model (3) is rotatably mounted between one end of the two lead screws (5). The support plate (301) is mounted on the upper part of the support platform (1). The servo motor (4) is fixed to the lower part of the human body model (3), and two servo motors (4) are installed on it. The output shaft of the servo motor (4) extends downward through the human body model (3) and is fixedly connected to the corresponding lead screw (5). The connecting plate (7) is installed at the bottom of the human body model (3). The guide plate (8) is slidably set inside the support shell (2), with one end extending to the outside of the support shell (2) and rotatably connected to the connecting plate (7). The control console (9) is placed on one side of the support platform (1). The servo motor (4) is electrically connected to the control console (9). The rotating component is set between the support platform (1) and the connecting seat (201).

2. The baby carrier dynamic load testing machine according to claim 1, characterized in that, The rotating assembly includes a gear ring (11), a motor (12), and a spur gear (13). The gear ring (11) is fixed to the lower part of the connecting seat (201). The motor (12) is mounted on the upper side of the support platform (1), with its output shaft extending upward. The motor (12) is electrically connected to the control console (9). The spur gear (13) is fixed to the output shaft of the motor (12) and is located behind the gear ring (11). The two mesh with each other.

3. The baby carrier dynamic load testing machine according to claim 2, characterized in that, It also includes a buffer pad (6), with a buffer pad (6) fixed to the outside of each lead screw (5), and the buffer pad (6) forms a tight contact with the top of the support shell (2).

4. The baby carrier dynamic load testing machine according to claim 3, characterized in that, It also includes a protective shell (10), which is fixed to the lower side of the support shell (2).

5. The baby carrier dynamic load testing machine according to claim 4, characterized in that, The other end of the guide plate (8) is provided with a limiting structure.

6. The baby carrier dynamic load testing machine according to claim 5, characterized in that, The gear ring (11) has the same thickness as the spur gear (13).

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