Electric baby carriage with anti-collision protection function
By installing airbags and pressure sensors around the electric vehicle, the problem of insufficient side cushioning protection for child electric vehicles is solved, achieving effective protection and guardian reminders in the event of a collision, and reducing the cost of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing electric vehicles for children lack effective side impact protection devices, making children vulnerable to injury in side collisions, especially due to a lack of hazard prediction ability and the negligence of guardians, which increases the risk of accidents.
Airbags are installed around the electric vehicle body, equipped with pressure sensors and alarms. The airbags inflate and trigger the alarm when squeezed. Support plates and snap-fit sleeves are used to fix the airbags. The support plates are removable for airbag replacement. The support plates are connected to the electric vehicle body via T-blocks and snap-fit sleeves.
It effectively reduces the impact of side collisions, promptly alerts guardians, reduces usage costs, and improves safety.
Smart Images

Figure CN224090345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of children's vehicle technology, and in particular to an electric children's vehicle with anti-collision protection. Background Technology
[0002] This children's electric car is a fun toy car designed specifically for children aged 3-8. It simulates a real car and provides a realistic driving experience. Made of environmentally friendly plastic and powered by a rechargeable lithium battery, it's easy to operate. Simply step on the accelerator or use the remote control to move forward, backward, and turn, helping children develop hand-eye coordination and a sense of direction. Some higher-end models also feature music playback, LED lights, and a simulated horn to enhance the fun. For safety, most products are equipped with anti-slip tires, a speed limiter, and a parent remote control to prevent accidental collisions. The car can support a weight of approximately 20-30kg and has a battery life of about 1 hour, making it suitable for use in flat areas such as residential areas and parks.
[0003] Currently, most electric vehicles for children on the market have safety hazards, the most prominent being the lack of effective side impact protection. In pursuit of aesthetics and realistic design, most models have overly simplified side designs, using only hard plastic shells without any anti-collision structures or cushioning materials. When a child-driven vehicle is involved in a side collision, whether it hits a wall, railing, or other obstacle, the impact force is directly transmitted to the vehicle's interior, causing varying degrees of injury to the child. This injury may manifest as minor bumps, crushing, or even more serious injuries. More worryingly, because children often lack the ability to anticipate danger, and guardians may fail to notice danger in time due to momentary negligence, this lack of side protection makes accidents even more likely. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric children's vehicle with anti-collision protection.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electric children's vehicle with anti-collision protection, comprising an electric vehicle body, airbags arranged around the electric vehicle body, a detachable support plate fixed to the side of each airbag near the electric vehicle body, T-shaped blocks fixed to both ends of the support plate, a snap-fit sleeve fixed to the surface of the electric vehicle body for engaging the T-shaped blocks, a fixing plate fixed to the outer wall of the electric vehicle body and located on the side of each airbag, a pressure sensor fixed to the fixing plate near the side of the airbag, a controller built into the electric vehicle body, an alarm set on the top of the electric vehicle body, and both the pressure sensor and the alarm being electrically connected to the controller.
[0006] Furthermore, an air nozzle is fixed to one side of the airbag, and a valve core for inflation and deflation is provided inside the air nozzle.
[0007] Furthermore, the airbag is fixed with multiple clips on the side near the support plate, and a flange is fixed at the other end of the clips. The support plate has a through hole for the clips and flange to pass through. The flange is larger than the through hole. The airbag, clips and flange are all made of rubber.
[0008] Furthermore, the support plate is fixed with multiple screws on the side near the electric vehicle body, and a detachable pressure plate is slidably sleeved on the surface of the multiple screws, and a nut is threaded onto the surface of the screws, and the pressure plate is tightly fitted with the flange.
[0009] Furthermore, the snap-fit sleeve has a strip-shaped opening on the side near the support plate, and the top of the snap-fit sleeve is an open design, and the T-shaped block slides along the strip-shaped opening and snaps into the inside of the snap-fit sleeve.
[0010] Furthermore, a locking hole is provided on one side of the top of the locking sleeve, and a groove is provided on the top of the T-shaped block near the locking hole. A spring is fixed to the inner wall of the groove, and a locking rod is fixed to the other end of the spring. The end of the locking rod away from the spring is locked into the locking hole.
[0011] The beneficial effects of this utility model are:
[0012] 1. When in use, this utility model is an electric children's vehicle with anti-collision protection, which is equipped with an electric vehicle body, airbags, support plate, T-shaped block and snap-fit sleeve. By setting multiple airbags around the electric vehicle body, the airbags can reduce the impact on the electric vehicle body during driving, thereby playing a certain protective role. When the airbag is damaged, the airbag can be removed and replaced individually, thereby reducing the cost of use.
[0013] 2. When in use, this utility model is an electric children's vehicle with anti-collision protection. It is equipped with a pressure sensor and an alarm. When the airbag is squeezed, the side of the airbag will expand and squeeze the pressure sensor. At this time, the alarm will sound to remind the guardian in time. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 : Overall perspective view of this utility model;
[0016] Figure 2Partial sectional view of this utility model;
[0017] Figure 3 : A three-dimensional view of the snap-fit sleeve of this utility model;
[0018] Figure 4 The present utility model Figure 1 Enlarged view of point A in the middle;
[0019] Figure 5 The present utility model Figure 2 Enlarged view of section B in the middle.
[0020] The attached figures are labeled as follows:
[0021] 1. Electric vehicle body; 2. Airbag; 21. Locking bar; 22. Flange; 23. Air nozzle; 3. Support plate; 31. Perforation; 4. T-block; 41. Groove; 42. Spring; 43. Locking rod; 5. Locking sleeve; 51. Strip opening; 52. Locking hole; 6. Pressure plate; 7. Screw; 8. Fixing plate; 9. Pressure sensor; 10. Alarm. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-5 As shown, an electric children's vehicle with anti-collision protection is disclosed, including an electric vehicle body 1. Airbags 2 are provided around the electric vehicle body 1. A detachable support plate 3 is fixed to the side of the airbags 2 near the electric vehicle body 1. T-shaped blocks 4 are fixed to both ends of the support plate 3. A snap-fit sleeve 5 for snapping into the T-shaped blocks 4 is fixed to the surface of the electric vehicle body 1. A fixing plate 8 is fixed to the outer wall of the electric vehicle body 1 and located on the side of each airbag 2. A pressure sensor 9 is fixed to the fixing plate 8 near the side of the airbag 2. A controller is built into the electric vehicle body 1. An alarm 10 is provided on the top of the electric vehicle body 1. Both the pressure sensor 9 and the alarm 10 are electrically connected to the controller.
[0024] In this embodiment, the alarm 10, pressure sensor 9, and controller are all powered by the battery of the electric vehicle body 1. The controller uses an S7-1200 series CPU 1214C. When the pressure sensor 9 detects that the airbag 2's squeezing force exceeds the upper limit, the controller controls the alarm 10 to sound an alarm. This control circuit is not related to the control system of the electric vehicle body 1 and is a separate control system.
[0025] like Figure 1and Figure 4 As shown, an air nozzle 23 is fixed on one side of the airbag 2, and the air nozzle 23 is provided with a valve core for inflation and deflation.
[0026] The valve stem 23 and valve core have the same structure as car tires. After the air pump is connected to the valve stem 23, air can be injected into the airbag 2, so that the airbag 2 can play a buffering and protective role on the side of the electric vehicle body 1.
[0027] like Figure 5 As shown, multiple clips 21 are fixed on the side of the airbag 2 near the support plate 3, and a flange 22 is fixed on the other end of the clips 21. The support plate 3 has a through hole 31 for the clips 21 and the flange 22 to pass through. The flange 22 is larger than the through hole 31. The airbag 2, the clips 21 and the flange 22 are all made of rubber.
[0028] The rubber material is the same as that of the inner tube of a car tire. When the clip 21 and the flange 22 are passed through the perforation 31, the flange 22 can be squeezed and deformed to pass through the perforation 31.
[0029] like Figure 5 As shown, a number of screws 7 are fixed on the side of the support plate 3 near the electric vehicle body 1. A detachable pressure plate 6 is slidably sleeved on the surface of the screws 7, and nuts are threaded on the surface of the screws 7. The pressure plate 6 is tightly fitted with the flange 22.
[0030] The airbag 2 is fixed to the support plate 3 by pressure plate 6. When the airbag 2 is damaged and needs to be replaced, first unscrew the nut on the screw 7, then remove the pressure plate 6 from the surface of the screw 7. At this time, the flange 22 is no longer deformed by the pressure plate 6. Then pull the retaining strip 21 and the flange 22 out of the perforation 31, thus disassembling the airbag 2. Next, pass the retaining strip 21 and the flange 22 on the new airbag 2 through the perforation 31 on the support plate 3, then put the pressure plate 6 on the surface of the screw 7, and screw the nut on the surface of the screw 7. Use the nut to press the pressure plate 6, and the pressure plate 6 will then press the flange 22, so that the flange 22 deforms and fits tightly with the support plate 3, and the flange 22 cannot be pulled out from the perforation 31.
[0031] The snap-fit sleeve 5 has a strip-shaped opening 51 on the side near the support plate 3, and the top of the snap-fit sleeve 5 is open. The T-shaped block 4 slides along the strip-shaped opening 51 and snaps into the inside of the snap-fit sleeve 5.
[0032] The connection between the support plate 3 and the snap-fit sleeve 5 is achieved by the T-shaped block 4 sliding into the snap-fit sleeve 5 from above. Due to the structural limitations of the snap-fit sleeve 5 and the T-shaped block 4, the T-shaped block 4 can only slide up and down along the snap-fit sleeve 5 and cannot detach from the snap-fit sleeve 5 in the horizontal direction.
[0033] The top of the snap-fit sleeve 5 has a snap-fit hole 52 on one side, and the top of the T-shaped block 4 has a groove 41 on the side near the snap-fit hole 52. A spring 42 is fixed to the inner wall of the groove 41, and a snap-fit rod 43 is fixed to the other end of the spring 42. The end of the snap-fit rod 43 away from the spring 42 is snapped into the snap-fit hole 52.
[0034] When the T-block 4 is inserted into the snap-fit sleeve 5, the snap-fit rod 43 is first squeezed back into the groove 41, and then the T-block 4 is slid into the top of the snap-fit sleeve 5. When the snap-fit rod 43 coincides with the snap-fit hole 52, the spring 42 squeezes the snap-fit rod 43 into the snap-fit hole 52, thereby fixing the T-block 4 inside the snap-fit sleeve 5. Since the snap-fit sleeve 5 bears the weight of the T-block 4 in this structure, the spring 42 and the snap-fit rod 43 only play a limiting role. Furthermore, the spring 42 can be a stiff spring 42. When the electric vehicle body 1 is in motion, it will not affect the stability of the snap-fit structure, so the T-block 4 will not come off from the snap-fit sleeve 5.
[0035] When it is necessary to disassemble the support plate 3, first squeeze the locking rod 43 on the T-block 4 to disengage the locking rod 43 from the locking hole 52, and then slide the T-block 4 upward.
[0036] Working principle: When a child uses the electric vehicle body 1, if it is involved in a collision, the surrounding airbags 2 act as a buffer. As the airbags 2 are compressed, their sides inflate, creating pressure on the pressure sensor 9. When this pressure exceeds the controller's preset value, the controller activates the alarm 10 to alert the guardian present. If the airbag 2 is damaged, first disassemble the corresponding support plate 3 from the snap-fit sleeve 5, then remove the pressure plate 6 on the back of the support plate 3, and finally remove the airbag 2 for replacement. Then, the installation process can be reversed.
[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An electric children's vehicle with anti-collision protection, comprising an electric vehicle body (1), characterized in that: Airbags (2) are provided around the electric vehicle body (1). A detachable support plate (3) is fixed to the side of the airbag (2) near the electric vehicle body (1). T-shaped blocks (4) are fixed to both ends of the support plate (3). A snap-fit sleeve (5) for snapping into the T-shaped block (4) is fixed to the surface of the electric vehicle body (1). A fixing plate (8) is fixed to the outer wall of the electric vehicle body (1) and to the side of each airbag (2). A pressure sensor (9) is fixed to the side of the fixing plate (8) near the airbag (2). A controller is built into the electric vehicle body (1). An alarm (10) is provided on the top of the electric vehicle body (1). The pressure sensor (9) and the alarm (10) are electrically connected to the controller.
2. The electric stroller with anti-collision protection according to claim 1, characterized in that: The airbag (2) has an air nozzle (23) fixed on one side, and the air nozzle (23) has a valve core for inflation and deflation inside.
3. The electric stroller with anti-collision protection according to claim 1, characterized in that: The airbag (2) has multiple clips (21) fixed on the side near the support plate (3), and a flange (22) is fixed on the other end of the clips (21). The support plate (3) has a through hole (31) for the clips (21) and the flange (22) to pass through. The flange (22) is larger than the through hole (31). The airbag (2), clips (21) and flange (22) are all made of rubber.
4. An electric children's vehicle with anti-collision protection according to claim 3, characterized in that: The support plate (3) is fixed with a plurality of screws (7) on the side close to the electric vehicle body (1). A detachable pressure plate (6) is slidably sleeved on the surface of the plurality of screws (7), and a nut is threaded on the surface of the screws (7). The pressure plate (6) is tightly fitted with the flange (22).
5. An electric stroller with anti-collision protection according to claim 1, characterized in that: The snap-fit sleeve (5) has a strip opening (51) on the side near the support plate (3), and the top of the snap-fit sleeve (5) is open. The T-shaped block (4) slides along the strip opening (51) and snaps into the inside of the snap-fit sleeve (5).
6. An electric stroller with anti-collision protection according to claim 5, characterized in that: The top of the snap-fit sleeve (5) has a snap-fit hole (52) on one side, and the top of the T-shaped block (4) has a groove (41) on the side near the snap-fit hole (52). A spring (42) is fixed to the inner wall of the groove (41), and a snap-fit rod (43) is fixed to the other end of the spring (42). The end of the snap-fit rod (43) away from the spring (42) is snapped into the snap-fit hole (52).