Child trailer chassis profile
By incorporating a rod cavity and slot within the child trailer frame rod, combined with a connector design, the problems of cumbersome frame connections and easy damage to the canopy are solved, enabling quick and stable assembly and disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU EASYLIFE PROD CO LTD
- Filing Date
- 2026-03-26
- Publication Date
- 2026-06-12
AI Technical Summary
Existing child trailers have cumbersome frame connection methods, the canopy is easily damaged, and the screws make disassembly and installation inconvenient.
It adopts a profile pole design with internal pole cavities and slots, and can be quickly assembled through connectors. The fiber pole is inserted into the pole cavity to fix the canopy, and the connectors ensure a stable connection between the profile poles, eliminating the need for screws.
It enables rapid and stable assembly of profiles and vehicle floor panels, stable installation of the canopy, simplifies the disassembly and installation process, and avoids the tedious operation of traditional screws.
Smart Images

Figure CN224348975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of trailer structural components, specifically to a child trailer chassis profile. Background Technology
[0002] In modern family life, when parents travel with young children, they usually need to bring the things the children need. At this time, it is necessary to put the children or items in a trailer to facilitate travel.
[0003] Nowadays, child trailers have profiles at the connection between the floor and the frame. These profiles connect the floor and the frame and provide a base for the canopy. However, in current technology, the profiles are usually fastened with screws, which is relatively cumbersome to disassemble and install. In addition, the canopy is usually made of fabric, so screw assembly can easily damage the canopy.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] The purpose of this utility model is to provide a child trailer chassis profile to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A child trailer chassis profile includes a chassis plate and a vehicle frame. The chassis plate has profile rods on its outer sides, each profile rod having a cavity inside. A rod cavity is formed on the top side of the profile rod away from the chassis plate, and a notch is formed on the side of the rod cavity away from the chassis plate. A slot is formed at the bottom of the profile rod, with the slot opening facing the chassis plate. The ends of two adjacent profile rods are fixedly connected by connectors. A plug-in is fixedly installed on the top wall of the end of each profile rod. The bottom of the vehicle frame is fixedly installed on the plug-in. Both the rod cavity and the slot are arranged along the length of the profile rod.
[0008] Furthermore, the connector includes a connecting plate with an assembly hole. An insert block is integrally provided on the outer wall of the connecting plate facing the end of the profile rod. An arc-shaped groove is provided on the top side of the insert block, which is directly opposite the rod cavity. An insert plate is also integrally provided on the outer wall of the connecting plate.
[0009] Furthermore, a retaining edge is integrally provided on the top of the outer wall of the connecting plate facing the insert block. An insert pipe is fixedly installed at the end of the outer wall of one of the profile rods, and a traction rod is fixedly installed inside the insert pipe. An axle is installed at the bottom of the vehicle floor, and wheels are installed at both ends of the axle. A traction head is fixedly installed at the end of the traction rod away from the profile rod.
[0010] Furthermore, a storage groove is provided on the side of the vehicle floor near the tow bar, and a caster wheel is installed on the bottom of the outer wall of the end of the tow bar away from the vehicle floor.
[0011] Furthermore, a push handle is installed on the top of the vehicle frame.
[0012] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and reasonable design. The special structural design of the profile rod can facilitate quick assembly with the vehicle floor. The set rod cavity and slot not only ensure stable assembly with the vehicle floor, but also ensure stable installation of the tarpaulin, solving the problem of cumbersome disassembly of traditional screws. The set connecting parts can also ensure stable connection between the profile rods, making disassembly and assembly very convenient. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the 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.
[0014] Figure 1 This is a structural schematic diagram of a child trailer frame profile according to an embodiment of the present utility model;
[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This is a schematic diagram of the assembly structure of the profile rod and the vehicle floor plate in the chassis frame of a child trailer according to an embodiment of the present utility model;
[0017] Figure 4 This is a structural schematic diagram of a connecting member in a child trailer frame profile according to an embodiment of the present utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the trailer body in a child trailer frame profile according to an embodiment of the present utility model.
[0019] Figure label:
[0020] 1. Profile rod; 100. Cavity; 101. Rod cavity; 102. Slot; 103. Notch; 2. Connector; 200. Connecting plate; 201. Assembly hole; 202. Insert block; 203. Arc groove; 204. Insert plate; 205. Edge retainer; 3. Vehicle floor plate; 300. Storage slot; 4. Insert connector; 5. Insert pipe; 6. Brake pedal; 7. Wheel; 8. Tow bar; 81. Caster wheel; 82. Towing head; 9. Vehicle frame; 10. Push handle. Detailed Implementation
[0021] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:
[0022] Please see Figure 1-5 According to an embodiment of the present utility model, a child trailer frame profile includes a long strip-shaped profile rod 1. The profile rod 1 has a cavity 100 inside. A rod cavity 101 is formed on the outer side of one side of the profile rod 1 along its length direction. A notch 103 is formed on the side of the rod cavity 101 away from the cavity 100. A slot 102 is formed on the outer wall of the side of the profile rod 1 away from the rod cavity 101. The slot 102 is formed along the length direction of the profile rod 1. In practical assembly, the four profile rods 1 are connected end to end, and the vehicle floor 3 is placed in the space enclosed by the four profile rods 1. The slots 102 on the profile rods 1 are all set facing the vehicle floor 3. The edge of the vehicle floor 3 is inserted into the slot 102 to fix the vehicle floor 3. The fiber rod can be inserted into the rod cavity 101, and the bottom of the trailer body cloth is fixed in the rod cavity 101 by the fiber rod. Both installation and disassembly are very convenient, and the trouble of fixing and disassembling with screws is eliminated.
[0023] The ends of the profile rod 1 are connected end-to-end by a connector 2, and a plug 4 is fixedly installed on the top of the outer wall of the connector 2. The bottom of the vehicle frame 9 is connected to the profile rod 1 through the plug 4, thus achieving stable assembly. The connector 2 includes a connecting plate 200, which has an assembly hole 201. A plug block 202 is integrally provided on the outer wall of the connecting plate 200 facing the end of the profile rod 1. An arc-shaped groove 203 is provided on the top side of the plug block 202, which is directly opposite the rod cavity 101. A plug plate 204 is also integrally provided on the outer wall of the connecting plate 200, located directly below the plug block 202. The connecting plate 200 is installed on the outer wall end of the profile rod 1 through the assembly hole 201, and the cavity 100 of the end of another profile rod 1 is inserted into the outside of the plug block 202. At this time, the plug plate 204 will also be inserted into the inside of the slot 102, thus achieving stable assembly between the profile rods 1.
[0024] The connecting plate 200 is also integrally provided with a retaining edge 205 on the top of the outer wall of the side facing the insert block 202. The retaining edge 205 can contact the top of the profile rod 1, thereby playing a role in supporting each other.
[0025] One of the profile rods 1 has a connector 5 fixedly installed on its outer end. A towing rod 8 is fixedly installed inside the connector 5. An axle is installed at the bottom of the vehicle floor 3, and wheels 7 are installed at both ends of the axle. A towing head 82 is fixedly installed at the end of the towing rod 8 away from the profile rod 1. By connecting the towing head 82 to a vehicle such as a car, the empty trailer can be towed while in motion.
[0026] The vehicle floor 3 is provided with a storage groove 300 on the side near the tow bar 8. When a child sits in the vehicle floor 3, the storage groove 300 can provide a storage area for the child's feet.
[0027] A brake pedal 6 is installed on the outside of the profile rod 1 located away from the traction head 82. The brake pedal 6 is used to stop the wheels 7.
[0028] The bottom of the outer wall of the end of the tow bar 8 away from the vehicle floor 3 is also equipped with a caster wheel 81. The caster wheel 81 can increase the stability of the trailer when it moves as a whole and also facilitates steering.
[0029] A push handle 10 is installed on the top side of the vehicle frame 9 away from the tow bar 8, which allows the trailer to be pushed manually.
[0030] Through the above-mentioned solution of this utility model, the structure of this utility model is simple and the design is reasonable. The special structural design of the profile rod 1 can be quickly assembled with the vehicle floor 3. The rod cavity 101 and the slot 102 not only ensure the stable assembly with the vehicle floor 3, but also ensure the stable installation of the canopy, solving the problem of cumbersome disassembly of traditional screws. The connecting piece 2 can also ensure the stable connection between the profile rods 1, making disassembly and assembly very convenient.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A child trailer frame profile, characterized in that, The vehicle includes a floor plate (3) and a body frame (9). The outer side of the floor plate (3) is provided with profile rods (1). The profile rods (1) have cavities (100) inside. The top of the profile rods (1) is provided with a rod cavity (101) on the side away from the floor plate (3). The rod cavity (101) is provided with a notch (103) on the side away from the floor plate (3). The bottom of the profile rods (1) is provided with a slot (102), and the opening of the slot (102) is set towards the floor plate (3). The ends of two adjacent profile rods (1) are fixedly connected by connectors (2). A plug-in (4) is fixedly installed on the top wall of the end of the profile rods (1). The bottom of the body frame (9) is fixedly installed on the plug-in (4).
2. The child trailer frame profile according to claim 1, characterized in that, Both the rod cavity (101) and the slot (102) are arranged along the length direction of the profile rod (1).
3. The child trailer frame profile according to claim 2, characterized in that, The connector (2) includes a connecting plate (200), which has an assembly hole (201). An insert (202) is integrally provided on the outer wall of the connecting plate (200) facing the end of the profile rod (1). An arc groove (203) is provided on the top side of the insert (202) facing the rod cavity (101). An insert plate (204) is also integrally provided on the outer wall of the connecting plate (200).
4. The child trailer chassis profile according to claim 3, characterized in that, The top of the outer wall of the connecting plate (200) facing the insert block (202) is also integrally provided with a retaining edge (205).
5. The child trailer chassis profile according to claim 4, characterized in that, One of the profile rods (1) has a plug pipe (5) fixedly installed on the outer wall end, and a traction rod (8) is fixedly installed inside the plug pipe (5). The bottom of the vehicle floor (3) is equipped with an axle, and wheels (7) are installed at both ends of the axle. A traction head (82) is fixedly installed at the end of the traction rod (8) away from the profile rod (1).
6. The child trailer frame profile according to claim 5, characterized in that, The vehicle floor (3) has a storage slot (300) on the side near the tow bar (8).
7. The child trailer chassis profile according to claim 6, characterized in that, A caster wheel (81) is also installed on the bottom of the outer wall of the end of the traction rod (8) away from the vehicle floor (3).
8. The child trailer frame profile according to claim 7, characterized in that, A push handle (10) is mounted on the top of the vehicle frame (9).