A bumper for a baby carriage having a cushioning function

Abstract

The utility model discloses a child bicycle bumper with buffering function, including child bicycle body, the below of child bicycle body is equipped with the lifting crossbeam, three connecting assemblies are commonly installed between the lifting crossbeam and child bicycle body, the bottom of child bicycle body and the top of lifting crossbeam all are equipped with multiple embedded slots, multiple embedded slots are set up in pairs, and the fixed cylinder is commonly embedded between the two embedded slots of same group. In the utility model, the elastic plug in the fixed cylinder is connected with the metal bumper, and when colliding, the bumper crossbeam pushes the slide bar to make the piston compress the spring and store energy, and at the same time, the air in the fixed cylinder is compressed and slowly discharged from the exhaust fine hole to form damping, which effectively buffers and consumes the impact force, avoids the damage of rigid impact to children and internal components of the vehicle body, and besides, through the cooperation of the connecting assembly between the lifting crossbeam and the child bicycle body and the embedded slot and the limiting assembly, the metal bumper is quickly disassembled and assembled, and maintenance is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, and in particular to a children's vehicle bumper with a cushioning function. Background Technology

[0002] An electric toy car is a children's vehicle that combines riding, driving entertainment, and electric drive. It typically includes a frame, seat, drive motor, power source (battery), and control system, which children can operate via pedals or buttons. Compared to traditional strollers, electric toy cars have their own power source and can move automatically at lower speeds, providing children with the fun of simulated driving and making them very popular.

[0003] However, precisely because of their self-propelled capability, electric toy cars also carry an increased risk of accidental collisions during operation. Currently, most electric toy cars still use traditional designs for their front and rear bumpers, which are mostly one-piece molded rigid plastic structures directly and rigidly connected to the frame. This design has significant safety flaws: when the vehicle collides with a wall, furniture, or other obstacle while in motion, the rigid bumper cannot provide an effective buffering and energy absorption process, and the impact force is instantly transmitted through the frame to the entire vehicle body. This not only causes the vehicle to stop abruptly and generate violent vibrations, easily startling children or injuring them due to inertia and forward tilting, but may also cause irreversible impact damage to the vehicle's internal transmission systems such as motors and gears.

[0004] Therefore, we have proposed a stroller bumper with a cushioning function. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a children's stroller bumper with a buffer function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a children's stroller bumper with a buffer function, including a stroller body, a lifting crossbeam provided below the stroller body, and three connecting components installed together between the lifting crossbeam and the stroller body;

[0007] The bottom of the stroller body and the top of the lifting beam are provided with multiple interlocking slots. The multiple interlocking slots are arranged in pairs, and a fixing cylinder is fitted between the two interlocking slots in the same group.

[0008] Each of the multiple interlocking slots at the bottom is fitted with a limit assembly between itself and the adjacent fixed cylinder.

[0009] Each of the fixed cylinders has a fine exhaust hole extending into the interior on one side of its outer surface, and an intake one-way valve is fixedly embedded in one side of the outer surface of each of the fixed cylinders, and the intake one-way valve communicates with the interior of the fixed cylinder.

[0010] Each of the multiple fixed cylinders has an elastic plug installed inside, and the multiple elastic plugs are jointly fixedly connected to the metal bumper.

[0011] Furthermore, the bottom of the lifting beam is evenly provided with three hidden grooves, which provide a concealed effect for the subsequent installation of bolts and avoid accidental contact due to exposure.

[0012] Furthermore, all three connecting components include connecting bolts, with the bolt head disposed in a concealed groove, and the bolt shank extending through the top of the concealed groove to the top of the lifting beam. The outer surface of the connecting bolt is threaded with a threaded sleeve, and the connecting bolt and the threaded sleeve cooperate to achieve a locking effect.

[0013] Furthermore, the threaded sleeve is fixedly connected to the bottom of the stroller body, and the stroller body provides support for the threaded sleeve, which facilitates the installation of the threaded sleeve.

[0014] Furthermore, each of the aforementioned limiting components includes a limiting groove, which is located at the bottom of the fixed cylinder. A limiting block is inserted into the inner side of the limiting groove, and the limiting block is fixedly connected to the adjacent interlocking groove. The limiting block and the limiting groove cooperate to limit the position of the fixed cylinder, thereby improving the stability after installation.

[0015] Furthermore, each of the elastic plugs includes a spring, and the spring is fixedly connected to one end of the fixed cylinder. One end of the spring is fixedly connected to a piston, and the piston slides in a sealed manner inside the fixed cylinder. The spring is designed to continuously provide power for the piston to return to its original position.

[0016] Furthermore, the metal bumper includes a bumper beam, and multiple sliding rods are uniformly fixedly connected to one side of the outer surface of the bumper beam. The sliding rods extend through the outer wall of the fixed cylinder into the interior and are fixedly connected to the pistons. The arrangement of the sliding rods facilitates the connection between the bumper beam and the multiple pistons.

[0017] The beneficial effects of this utility model are:

[0018] In use, this invention connects to the metal bumper via an elastic plug inside the fixed cylinder. Upon impact, the bumper beam pushes the slide rod, causing the piston to compress the spring and store energy. Simultaneously, the air inside the fixed cylinder is compressed and slowly discharged from the exhaust port, creating damping and effectively buffering and absorbing the impact force, preventing rigid impacts from damaging children and internal vehicle components. Furthermore, the connection components between the lifting beam and the stroller body, along with the cooperation of the interlocking groove and the limiting components, enable quick assembly and disassembly of the metal bumper, facilitating maintenance. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0022] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a cross-sectional view of the fixed cylinder structure of this utility model;

[0024] Figure 5 This is a cross-sectional view of the lifting beam structure of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Steering wheel body; 2. Fixing cylinder; 3. Bumper crossbeam; 4. Slide bar; 5. Lifting crossbeam; 6. Threaded sleeve; 7. Connecting bolt; 8. Hidden groove; 9. Exhaust hole; 10. Spring; 11. Limiting groove; 12. Piston; 13. Intake one-way valve; 14. Limiting block; 15. Interlocking groove. Detailed Implementation

[0027] 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.

[0028] like Figures 1-5As shown, a stroller bumper with a buffer function is disclosed, including a stroller body 1. A lifting beam 5 is provided below the stroller body 1. Three connecting components are installed between the lifting beam 5 and the stroller body 1. Three hidden grooves 8 are evenly provided at the bottom of the lifting beam 5. Each of the three connecting components includes a connecting bolt 7. The threaded head of the connecting bolt 7 is located in the hidden groove 8, and the threaded section of the connecting bolt 7 extends through the top of the hidden groove 8 to the top of the lifting beam 5. A threaded sleeve 6 is threaded onto the outer surface of the connecting bolt 7. The threaded sleeve 6 is fixedly connected to the bottom of the stroller body 1. Through holes extending to the top of the lifting beam 5 are provided in the top of each of the three hidden grooves 8. The through holes match the connecting bolts 7 to facilitate the installation of the connecting bolts 7.

[0029] Multiple interlocking slots 15 are provided at the bottom of the stroller body 1 and at the top of the lifting beam 5. The multiple interlocking slots 15 are arranged in pairs, and a fixing cylinder 2 is fitted between the two interlocking slots 15 in the same group. The upper and lower interlocking slots 15 cooperate to position the fixing cylinder 2 left and right to avoid left and right displacement.

[0030] Multiple bottom fitting slots 15 are installed together with adjacent fixed cylinders 2 with limiting components. Each limiting component includes a limiting slot 11, which is opened at the bottom of the fixed cylinder 2. A limiting block 14 is inserted into the inner side of the limiting slot 11, and the limiting block 14 is fixedly connected to the adjacent fitting slot 15. The limiting slot 11 and the limiting block 14 cooperate to position the fixed cylinder 2 back and forth, so as to avoid back and forth displacement.

[0031] Each of the multiple fixed cylinders 2 has a fine exhaust hole 9 that extends into the interior on one side of its outer surface. An air intake check valve 13 is fixedly embedded in one side of the outer surface of the multiple fixed cylinders 2, and the air intake check valve 13 communicates with the interior of the fixed cylinder 2. The air intake check valve 13 is designed to increase the air intake speed and facilitate the rapid reset of the elastic plug.

[0032] Multiple fixed cylinders 2 are each equipped with an elastic plug inside. The multiple elastic plugs are jointly fixedly connected to a metal bumper. Each elastic plug includes a spring 10, and the spring 10 is fixedly connected to one end of the fixed cylinder 2. One end of the spring 10 is fixedly connected to a piston 12, and the piston 12 slides in a sealed manner inside the fixed cylinder 2. The metal bumper includes a bumper beam 3. Multiple sliding rods 4 are evenly fixedly connected to one side of the outer surface of the bumper beam 3. The sliding rods 4 extend through the outer wall of the fixed cylinder 2 into the interior and are fixedly connected to the piston 12. The spring 10 is made of stainless steel, which has a corrosion-resistant effect and ensures its service life.

[0033] Working principle: When the front end of the stroller body 1 is collided or impacted, the bumper beam 3 of the metal bumper first contacts the obstacle and transmits the impact force to the piston 12 inside the fixed cylinder 2 through multiple sliding rods 4.

[0034] The slide rod 4 pushes the piston 12 to slide inward in the fixed cylinder 2, compressing the spring 10. The compression process of the spring 10 absorbs part of the impact energy and temporarily stores it as elastic potential energy, thereby reducing the impact force directly transmitted to the stroller body 1.

[0035] During the movement of piston 12, the air inside the fixed cylinder 2 is compressed, forming high pressure. The compressed air is slowly discharged through the exhaust hole 9 on the outer surface of the fixed cylinder 2. Since the diameter of the exhaust hole 9 is small, the air discharge is obstructed, generating a damping effect, which further consumes the impact energy and avoids rigid rebound.

[0036] After the impact force is released, the elastic potential energy of the spring 10 pushes the piston 12 back to its original position, causing the bumper beam 3 to return to its initial position. During this process, a negative pressure is formed inside the fixed cylinder 2, and the intake one-way valve 13 opens, allowing external air to enter the fixed cylinder 2 to balance the pressure and prepare for the next cushioning.

[0037] When it is necessary to disassemble the fixing cylinder 2 and the metal bumper, invert the stroller body 1, then unscrew the three connecting bolts 7 in sequence to disengage them from the threaded sleeve 6, and then remove the lifting beam 5 to complete the disassembly; during installation, invert the stroller body 1, insert the fixing cylinder 2 into the insertion groove 15 on the stroller body 1, then align the insertion groove 15 on the lifting beam 5 with the fixing cylinder 2, insert the limiting block 14 into the limiting groove 11, and then screw on the three connecting bolts 7 in sequence.

[0038] 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. A stroller bumper with a cushioning function, comprising a stroller body (1), characterized in that: The lower part of the stroller body (1) is provided with a lifting crossbeam (5), and three connecting components are installed between the lifting crossbeam (5) and the stroller body (1). The bottom of the stroller body (1) and the top of the lifting beam (5) are provided with multiple interlocking slots (15). The multiple interlocking slots (15) are arranged in pairs, and a fixing cylinder (2) is fitted between the two interlocking slots (15) in the same group. Each of the multiple interlocking slots (15) at the bottom is connected to a limit assembly between itself and the adjacent fixed cylinder (2); Each of the fixed cylinders (2) has an exhaust hole (9) that extends into the interior on one side of its outer surface. An intake check valve (13) is fixedly embedded on one side of the outer surface of each of the fixed cylinders (2), and the intake check valve (13) communicates with the interior of the fixed cylinder (2). Each of the multiple fixed cylinders (2) has an elastic plug installed inside, and the multiple elastic plugs are jointly fixedly connected to the metal bumper.

2. A stroller bumper with a buffer function according to claim 1, characterized in that: The bottom of the lifting beam (5) is evenly provided with three hidden grooves (8).

3. A stroller bumper with a buffer function according to claim 2, characterized in that: All three connecting components include a connecting bolt (7), and the head of the connecting bolt (7) is located in the hidden groove (8), and the threaded section of the connecting bolt (7) extends through the top of the hidden groove (8) to the top of the lifting beam (5), and the outer surface of the connecting bolt (7) is threaded with a threaded sleeve (6).

4. A stroller bumper with a buffer function according to claim 3, characterized in that: The threaded sleeve (6) is fixedly connected to the bottom of the stroller body (1).

5. A stroller bumper with a buffer function according to claim 1, characterized in that: Each of the aforementioned limiting components includes a limiting groove (11), and the limiting groove (11) is opened at the bottom of the fixed cylinder (2). A limiting block (14) is inserted into the inner side of the limiting groove (11), and the limiting block (14) is fixedly connected to the adjacent interlocking groove (15).

6. A stroller bumper with a buffer function according to claim 1, characterized in that: Each of the elastic plugs includes a spring (10), and the spring (10) is fixedly connected to one end of the fixed cylinder (2). One end of the spring (10) is fixedly connected to a piston (12), and the piston (12) slides in a sealed manner inside the fixed cylinder (2).

7. A stroller bumper with a buffer function according to claim 6, characterized in that: The metal bumper includes a bumper beam (3), and a plurality of slide rods (4) are uniformly fixedly connected to one side of the outer surface of the bumper beam (3). The slide rods (4) extend through the outer wall of the fixed cylinder (2) into the interior and are fixedly connected to the piston (12).

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