How to prevent the pet stroller from tipping over and accidentally rushing out when pushed?

As the core equipment for pets' short distance travel and outdoor walks, the safety of pet carts is directly related to their life and health. Among them, rollover and accidental running out are the most common safety hazards during the implementation process. Unlike baby strollers, pet strollers need to be adapted to pets of different sizes and personalities. The restlessness and struggle of pets inside the stroller can easily cause the center of gravity to shift. In addition, outdoor road conditions are complex. If the product design is not reasonable and the use is not standardized, it is highly likely to cause rollover; Failure of the brakes and loosening of the locking device may cause the stroller to accidentally burst out, resulting in injuries such as pet falls and bumps. Currently, with the implementation of the "Technical Requirements for Safety of Companion Animal (Pet) Supplies" (GB/T 43839-2024), the industry has gradually formed a full chain prevention and control system from product design, production testing to use and maintenance. Through scientific control and standardized operation, it can effectively avoid the risks of rollover and accidental outburst, while taking into account the convenience and safety of pet travel.
From the perspective of industry practice, the core causes of pet stroller rollover and accidental derailment are concentrated in four aspects: firstly, insufficient support for the frame structure, narrow wheelbase, and unreasonable center of gravity design, which can easily lead to center of gravity deviation and rollover when pets are restless; Secondly, the reliability of the braking and locking devices is insufficient, resulting in delayed braking and loose locking, which cannot effectively fix the vehicle body and lead to accidental derailment; Thirdly, there is a lack of cabin protection design, with no effective fixing devices installed, which makes it easy for pets to collide with the cabin and cause imbalance when struggling; The fourth issue is improper use and maintenance, failure to promptly address loose or worn components, or improper operation, which exacerbates safety hazards. These issues can be effectively prevented and controlled through systematic product optimization, strict quality control, and standardized usage operations.
1、 Product design optimization: prevention and control from the source, building a solid safety defense line
A pet stroller that complies with the GB/T 43839-2024 standard needs to be designed based on the behavior characteristics and travel scenarios of pets. Through structural optimization and component upgrades, the risk of rollover and accidental ejection can be reduced from the source. The core optimization direction should meet the needs of pet use, while also considering practicality and safety.
1. Frame structure: Strengthen support, optimize center of gravity distribution
The frame is the core carrier for preventing rollover, and its design needs to balance support and adaptability. Enterprises can use high-strength and lightweight materials, such as 6061-T6 aviation aluminum alloy, thickened carbon steel, etc., to reduce the weight of the entire vehicle while improving the rigidity of the frame, avoiding insufficient support caused by thin materials and loose structures. The wheelbase design needs to be scientifically reasonable, adapting the wheelbase according to the rated load capacity of the stroller (usually 5-30kg). The rear wheelbase of small pet strollers should not be less than 35cm, and the rear wheelbase of medium and large pet strollers should not be less than 45cm. By widening the wheelbase, the support range can be expanded to ensure that the center of gravity of pets is still within the support range when they are restless inside the stroller, reducing the probability of rollover. At the same time, a triangular support structure or integrated frame design is adopted to reduce segmented splicing, and seamless reinforcement technology is used at the welding points to avoid structural looseness caused by virtual welding and leakage welding; Optimize the cabin position design, control the center of gravity of the cabin in the center area of the frame, avoid the center of gravity moving upward due to the cabin being too high or offset, further reduce the risk of rollover, and avoid the hidden dangers of component detachment and fracture caused by insufficient dynamic durability.
2. Braking and locking devices: Enhance reliability and prevent accidental outbursts
Braking and locking devices are key to preventing accidental blowouts, and must meet the requirements of sensitivity, reliability, and durability. Pet strollers should be equipped with a dual braking system, preferably using a one foot dual brake or four-wheel independent brake design. The brake handle (or pedal) is easy to operate, with a braking response time of no more than 0.3 seconds and a braking rate of no less than 90%, ensuring that the wheels can be quickly locked when pushed to avoid accidental sliding. The brake components are made of high-strength stainless steel material and have undergone anti-corrosion treatment on the surface to prevent rusting and failure during outdoor use; At the same time, a parking lock device is added, which automatically locks after braking and requires manual unlocking to release the brake, preventing accidental release of the brake and causing the cart to rush out. The folding mechanism needs to adopt a multi-level locking design, which will automatically bite after folding. Unlocking requires completing two consecutive actions to avoid pet collisions or external touches that may cause the folding mechanism to unlock, leading to the imbalance and rollover of the vehicle body. If the locking device fails, the cart is prone to tipping over directly when encountering obstacles, increasing the risk of pet falls.
3. Cabin protection: Optimize fixation and buffering to reduce center of gravity offset
The cabin protection design needs to be adapted to the restless characteristics of pets, reducing the center of gravity shift and accidental outbursts caused by pet struggles. The cabin is equipped with adjustable pet seat belts made of nylon webbing material with a width of not less than 20mm. The tightness can be adjusted according to the pet's body size. The attachment point of the seat belt needs to withstand a pulling force of more than twice the pet's weight to prevent the pet from struggling and breaking free. Reinforced guardrails shall be installed on both sides of the cabin, with a height of not less than 15cm, and treated with soft wrapping to prevent pets from being injured in collisions, while assisting in stabilizing the center of gravity; The bottom of the cabin is made of anti slip fabric to reduce the center of gravity shift caused by pets sliding inside the stroller. Some mid to high end products can be equipped with cabin cushions made of environmentally friendly and breathable materials, which not only improve the comfort of pet riding, but also cushion the impact force of pets when they are restless, reducing body shaking. At the same time, reinforced connectors are installed at the connection between the cabin and the frame to avoid imbalance caused by cabin looseness.
4. Wheel configuration: Improve grip and enhance driving stability
The configuration of the wheelset directly affects the stability of the implementation and can effectively assist in preventing rollover and accidental derailment. Priority should be given to using 14-18cm size wheel sets, and larger size wheel sets can be used for medium and large pet strollers to balance portability and stability; The tires are made of anti-skid rubber wheels or PU foam wheels, with a wheel surface thickness of not less than 15mm, good elasticity and wear resistance, increasing ground grip, avoiding slipping when pushed on smooth or bumpy roads, and reducing the risk of rollover and accidental sliding. The front wheels are equipped with lockable 360 ° universal wheels and high-quality bearings to ensure smooth steering without jamming. When turning, the direction can be flexibly adjusted to avoid tilting and overturning of the vehicle due to poor steering; Add buffer pads between the wheel axle and hub to reduce the impact of road vibrations on the vehicle body, while preventing the wheel set from loosening and avoiding accidents caused by wheel set failures.
2、 Production quality control: Strengthen the implementation of standards and eliminate unqualified products
After optimizing product design, strict production quality control is the key to ensuring the effectiveness of prevention and control. Enterprises need to establish a full process quality control system in accordance with the GB/T 43839-2024 standard, prevent unqualified products from entering the market, and prevent tipping and unexpected risks from the production end.
In terms of raw material control, strict screening of materials for core components such as frames, wheelsets, brake components, and seat belts is carried out to ensure that material strength, wear resistance, and elasticity meet standard requirements, and to eliminate the use of inferior plastics, thin-walled metals, and other materials; Strictly test the limit of harmful substances on all parts that come into contact with pets to ensure that there are no toxic or harmful components such as formaldehyde and heavy metals, and that they comply with flame retardant requirements. During the production process, key links such as frame welding, wheel assembly, and brake device assembly are inspected one by one to ensure that the components are firmly connected and not loose, the brake system operates smoothly, and the folding locking device is reliable; Promote automated production equipment, improve component assembly accuracy, reduce safety hazards caused by human errors, focus on dynamic durability testing, and avoid component detachment and fracture problems after a period of product use.
In terms of finished product testing, each batch of products needs to undergo special tests for rollover and accidental impact, including slope rollover testing, brake braking testing, folding locking testing, load stability testing, etc. Among them, the slope overturning test needs to be placed in the most unfavorable position on a 12 ° slope to ensure that the cart does not overturn; The brake test needs to verify the sensitivity and reliability of braking, ensuring that there are no issues such as braking lag or unilateral braking; The folding lock test requires more than 10000 folding cycles to ensure that the locking performance does not significantly deteriorate. Products that fail the test must be immediately recalled and rectified, and testing records must be established to achieve product quality traceability; At the same time, enterprises need to entrust third-party laboratories with CMA/CNAS dual certification qualifications to conduct comprehensive testing of product safety performance, ensuring compliance with relevant national standards.
3、 Standardized use and maintenance: Avoiding human factors and consolidating prevention and control effects
Even if the product design and production meet the standards, non-standard use and maintenance can exacerbate the risks of rollover and accidental discharge. Users need to strictly follow the operating procedures, do a good job in daily maintenance, ensure safety, and avoid hidden dangers caused by improper human operation.
1. Standardize the implementation of operations to avoid center of gravity imbalance and accidental sliding
Strictly follow the rated load-bearing requirements of the trolley during implementation, do not exceed the load-bearing capacity, do not hang heavy objects on the trolley handle or both sides of the cabin, and avoid tipping due to center of gravity deviation; When placing pets, guide them to sit in the center of the cabin, fasten their seat belts, avoid leaning, struggling, or jumping on one side, and prevent the center of gravity from leaning to one side. Maintain a constant speed during implementation, avoid rapid turns and sudden braking, slow down during turns, increase turning radius, and reduce body shaking caused by centrifugal force; When driving on bumpy, bumpy, and smooth roads, slow down to reduce the risk of rollover and skidding caused by road factors. When parking, regardless of whether the road surface is flat or not, the brake device must be activated and locked to ensure that the wheels are completely fixed; When parking on a slope, turn the cart towards the top of the slope to further prevent the cart from sliding out, and avoid leaving pets alone in the cart for a long time to prevent accidents caused by pet agitation.
2. Carry out daily maintenance and promptly deal with hidden dangers of components
After long-term use, it is necessary to regularly check the core components of the trolley: check the frame, wheelset, brake device, folding locking mechanism, and safety belt for looseness, wear, and deformation every week. If there is looseness, tighten it in a timely manner, and replace worn or deformed parts in a timely manner; Check the rotation of the wheel set. If there is any jamming or abnormal noise, clean the wheel axle and add special lubricant in a timely manner to ensure smooth rotation; Check the brake system to ensure smooth operation of the brake lever (or pedal) and responsive braking. If there are issues such as brake lag or unilateral braking, promptly debug or repair. Thoroughly clean the trolley every three months, removing dust and debris from the gaps between components to avoid interference with their operation. At the same time, check the reliability of the folding locking device and seat belt to ensure no looseness or failure, and avoid safety hazards caused by component aging.
3. Avoid improper usage scenarios and reduce component wear and tear
Pet strollers are mainly suitable for short distance travel on flat roads, avoiding complex scenarios such as steep slopes, gravel roads, waterlogged roads, smooth roads, etc., reducing the overload loss of wheel sets, frames, and braking devices, and reducing the risk of rollover and accidental derailment; Avoid violent folding, forced tearing of the frame or wheelset, to prevent component deformation and damage; When storing, fully unfold or fold the cart according to specifications and lock it to avoid long-term compression that may cause structural deformation and affect prevention and control performance. At the same time, avoid letting pets vigorously move or bite parts in the stroller to prevent component damage and potential safety hazards.
4、 Industry standards and consumer guidelines
With the rapid development of the pet economy, the demand for pet strollers in the market continues to increase. The implementation of GB/T 43839-2024 standard has further refined the safety requirements for pet strollers, providing clear norms for the prevention and control of rollover and accidental outburst, and promoting the industry to develop towards standardization and safety. At present, the vast majority of countries and regions in the world do not have relevant standards for pet products. China has become the world's largest producer, exporter, and major consumer market for pet products, and is gradually leading the development of international standards for pet products. Industry enterprises need to strictly follow domestic standard requirements, strengthen design research and development and quality control, abandon the concept of "emphasizing appearance over safety", optimize product structure based on pet behavior characteristics, and enhance the prevention and control capabilities of rollover and accidental outburst; At the same time, enterprises need to clearly label safety precautions, maintenance methods, and warning content in product manuals to guide consumers to use them in a standardized manner.
For consumers, when choosing a pet stroller, it is important to pay close attention to the prevention and control of rollover and accidental outbursts. Firstly, it is recommended to choose products that meet the GB/T 43839-2024 standard, check the product testing report, and confirm that the rollover prevention and braking performance indicators meet the standards; The second is to test the stability and braking effect of the trolley on site, check the width of the wheelbase, the firmness of the frame, the sensitivity of the brakes, and the reliability of the folding lock, and observe whether the cabin fixing device is complete; The third is to choose a suitable stroller based on the size of the pet. Small pets should avoid using products with narrow wheelbase, while medium and large pets should choose products with sturdy frames and sufficient load-bearing capacity, and avoid purchasing "three no products" without factory name, address, and qualified quality certification. During use, strictly follow the operating procedures and conduct regular maintenance. If any problems such as shaking, brake failure, or loose locking are found with the trolley, stop using it immediately and contact the manufacturer for repair or replacement of parts.
The prevention and control of pet stroller rollover and accidental outburst is an inevitable requirement for the high-quality development of the industry and an important measure to safeguard the safety of pet travel. Through product design optimization, production quality control, and standardized use and maintenance, relevant safety hazards can be effectively avoided, achieving convenience and safety for pet travel. Industry enterprises need to adhere to the safety bottom line, continue technological innovation and standard implementation, and promote the upgrading of pet stroller products; Consumers need to establish a scientific awareness of purchasing and using, pay attention to core safety configurations, in order to effectively ensure the safety of pet travel and promote the healthy, orderly, and high-quality development of the pet supplies industry.