Toy oil tank truck
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑少庭
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-14
AI Technical Summary
The ladders and handrails of existing toy oil tankers are difficult to fix, and the guardrail structure is complex, which is not convenient for mold design and assembly.
The ladder is fixed by hooking the platform support block with a trapezoidal U-shaped structure. The handrail is connected to the guardrail support through lugs. The horizontal and vertical guardrails adopt a dovetail tenon and dovetail groove interlocking design.
It enables easy fixing of ladders and handrails, simplifies the assembly process, and reduces the complexity of mold design.
Smart Images

Figure CN224113275U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of children's toys, specifically relating to a toy oil tanker. Background Technology
[0002] Toy oil tankers mimic the structure of real oil tankers in daily life. Real oil tankers have a circular tank, and workers often need to climb to the top of the tank for operations, necessitating a ladder. Additionally, a platform with railings is provided on top for workers to stand or sit. Because of the circular shape, the ladders on the sides are curved. When workers reach the top of the curved ladder, their hands can no longer grip the bars, so handrails are required at the top. In real oil tankers, the ladders and handrails are welded or bolted to the tank. However, toy oil tankers are made of plastic, and the ladders / handrails are too thin to be welded or screwed on, making assembly more complicated. In many cases, toy oil tankers simply omit the ladders and handrails altogether. In addition, the guardrail includes horizontal guardrail strips and vertical guardrail strips. The horizontal guardrail strips and vertical guardrail strips of the existing toy oil tanker share the same support at the intersection of the two. Therefore, the injection molded component includes horizontal guardrail strips, vertical guardrail strips and support that are connected as one piece. Moreover, the horizontal guardrail strips and vertical guardrail strips are perpendicular to each other. As a result, the shape of the component is relatively complex and not convenient for mold design. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a toy oil tanker truck, which is equipped with a ladder, and the installation structure of the ladder is novel and easy to assemble.
[0004] Its purpose can be achieved through the following scheme:
[0005] A toy oil tanker includes a circular tank with its central axis running longitudinally. An arc-shaped ladder is provided on the side of the tank. The arc-shaped ladder has two struts, connected by several longitudinally extending rungs. A platform is located on top of the tank, surrounded by a guardrail with guardrail support brackets. A platform support block is connected below the platform. A vertical insertion hole is provided in the upper part of the tank for the lower part of the platform support block to be inserted into the vertical insertion hole. The key feature is that the upper sections of the two struts extend horizontally. The upper ends of the two ladder rods are connected by a top connecting rod, which together with the upper ends of the two ladder rods form a U-shaped ladder structure. The curved ladder uses the U-shaped ladder structure to hook onto the platform support block, which is embedded between the upper ends of the two ladder rods and located outside the top connecting rod. Each ladder rod has a ladder rod protrusion at the bottom, and a ladder rod tongue is provided on the side of the ladder rod protrusion closest to the tank. A transverse insertion hole is provided at the bottom of the tank for inserting the ladder rod tongue. The ladder rod tongue is inserted into the transverse insertion hole at the bottom of the tank.
[0006] The curved ladder is also equipped with two handrails, one at the front and one at the back. The lower ends of the two handrails are connected together by a connecting rod in the middle of the handrail to form a U-shaped structure. Each handrail has a lug extending longitudinally at its upper end, which is inserted into the support of the guardrail strip. The upper section of the curved ladder is embedded in the U-shaped structure of the handrail, and the connecting rod in the middle of the handrail is located below the upper section of the curved ladder.
[0007] The longitudinal dimension of the platform support block is equal to the longitudinal net space distance between the upper ends of the two ladder rods.
[0008] The longitudinal dimension of the upper section of the curved ladder is equal to the longitudinal clear space distance between the front and rear handrails.
[0009] The guardrail includes horizontal guardrail strips and vertical guardrail strips. The guardrail strip supports also include horizontal guardrail strip supports and vertical guardrail strip supports. The horizontal guardrail strips are installed on the horizontal guardrail strip supports, and the vertical guardrail strips are installed on the vertical guardrail strip supports. The horizontal guardrail strip supports and the vertical guardrail strip supports are manufactured separately. One of the horizontal guardrail strip supports and the other has a dovetail groove, and the other has a dovetail tenon. The dovetail groove extends vertically, and the dovetail tenon is inserted into the dovetail groove.
[0010] The outer side refers to the outer side along the transverse direction of the vehicle body.
[0011] This utility model has the following advantages and effects:
[0012] 1. The upper end of the curved ladder uses the U-shaped structure of the ladder to hook onto the original platform support. The platform support block is embedded between the upper sections of the two ladder rods. Therefore, the upper end of the curved ladder can be fixed with the help of the original platform support. The lower end of the curved ladder is fixed with a plug-in structure. This hook-and-plug fixing method makes the fixing of the curved ladder both simple and ingenious.
[0013] Second, the front and rear handrails are connected to the guardrail support only by lugs. The lower ends of the two handrails are connected together by the middle connecting rod of the handrail to achieve self-entanglement. They are clamped on the front and rear sides of the upper section of the curved ladder to achieve connection and fixation. This means that the lower ends of the two handrails no longer need to be plugged or locked with other components. Therefore, the assembly structure of the handrail is simple and ingenious.
[0014] Third, the horizontal guardrail support and the vertical guardrail support are made separately, and the two are connected by dovetail tenons and dovetail grooves. In this way, the horizontal guardrail and the vertical guardrail do not have to be connected as a whole, which simplifies the shape of the components and facilitates the mold design and demolding of the components. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of a specific embodiment of the present invention.
[0016] Figure 2 yes Figure 1 A magnified view of part A in the diagram.
[0017] Figure 3 As shown Figure 1 Cross-sectional view of the structure.
[0018] Figure 4 yes Figure 1 An exploded view of the structure shown.
[0019] Figure 5 yes Figure 4 A schematic diagram of the assembly structure of the handrail, platform slab, and platform support block.
[0020] Figure 6 This is a schematic diagram of the structure of an arc-shaped ladder.
[0021] Figure 7 yes Figure 4 Enlarged structural diagram of the platform slab and guardrail.
[0022] Figure 8 yes Figure 7 A horizontal sectional view of the central guardrail assembly structure.
[0023] Figure 9 yes Figure 8 A magnified view of part B in the diagram. Detailed Implementation
[0024] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The toy tanker truck shown includes a circular tank 3 with its central axis running longitudinally. An arc-shaped ladder 1 is provided on the side of the tank 3. The arc-shaped ladder 1 has two ladder rods 11, and several longitudinally extending ladder strips 12 connect the two ladder rods 11. A platform 4 is provided on the top of the tank 3, surrounded by a guardrail with guardrail strip supports. A platform support block 41 is connected below the platform 4. A vertical insertion hole 31 is provided on the upper part of the tank 3 for the lower part of the platform support block 41 to be inserted into the vertical insertion hole 31 of the tank. The upper ends 111 of the two ladder rods extend horizontally, and a top connecting rod 13 connects the upper ends 111 of the two ladder rods. The segment 111 forms a U-shaped trapezoidal structure; the arc-shaped ladder 1 uses the U-shaped trapezoidal structure to hook onto the platform support block 41; the platform support block 41 is embedded between the upper end segments 111 of the two ladder rods, and the platform support block 41 is located on the outside of the top connecting rod 13 of the ladder (referring to the outside of the vehicle body in the transverse direction). The longitudinal dimension of the platform support block 41 is equal to the longitudinal net space distance between the upper end segments 111 of the two ladder rods, which means that the upper end segments 111 of the two ladder rods are defined by the platform support block 41 in the longitudinal direction; a ladder rod protrusion 14 is also provided on the lower section of each ladder rod 11, and a ladder rod tongue 15 is provided on the side of the ladder rod protrusion 14 near the tank body. A transverse insertion hole 32 is opened at the lower part of the tank body 3 for the ladder rod tongue 15 to be inserted. The ladder rod tongue 15 is inserted into the transverse insertion hole 32 at the lower part of the tank body.
[0025] Figure 7 , Figure 8 , Figure 9 As shown, the guardrail includes horizontal guardrail strips 52 and vertical guardrail strips 51. The guardrail strip supports include horizontal guardrail strip supports 520 and vertical guardrail strip supports 510. The horizontal guardrail strips 52 are installed on the horizontal guardrail strip supports 520, and the vertical guardrail strips 51 are installed on the vertical guardrail strip supports 510. The horizontal guardrail strip supports 520 and vertical guardrail strip supports 510 are manufactured separately. In both the horizontal guardrail strip supports 520 and the vertical guardrail strip supports 510, the horizontal guardrail strip supports 520 are provided with dovetail grooves 60, and the vertical guardrail strip supports 510 are provided with dovetail tenons 61. The extension direction of the dovetail grooves 60 is vertical, and the dovetail tenons 61 are inserted into the dovetail grooves 60.
[0026] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the curved ladder 1 is also equipped with two handrails 2 at the front and back. The lower ends of the two handrails 2 are connected together by a middle connecting rod 21 to form a U-shaped handrail structure. The upper end of each handrail is provided with a lug 22 extending longitudinally, which is inserted into the longitudinal guardrail support 510. The upper section of the curved ladder 1 is embedded in the U-shaped structure of the handrail. The middle connecting rod 21 of the handrail is located below the upper section of the curved ladder 1. The longitudinal dimension of the upper section of the curved ladder 1 is equal to the longitudinal net space distance between the two handrails 2 at the front and back.
Claims
1. A toy tanker truck, comprising a circular tank body, the central axis of which is longitudinal, and an arc-shaped ladder on the side of the tank body; the arc-shaped ladder has two ladder rods, and a plurality of longitudinally extending ladder strips are connected between the two ladder rods; a platform plate is provided on the top of the tank body, a guardrail is provided around the platform plate, the guardrail is provided with guardrail strip supports, a platform support block is connected below the platform plate, and a vertical insertion hole is provided on the upper part of the tank body for the lower part of the platform support block to be inserted into the vertical insertion hole of the tank body; characterized in that: The upper sections of the two ladder rods extend horizontally, and a top connecting rod connects the upper sections of the two ladder rods. The top connecting rod and the upper sections of the two ladder rods form a U-shaped ladder structure. The curved ladder uses the U-shaped ladder structure to hook onto the platform support block, which is embedded between the upper sections of the two ladder rods and located outside the top connecting rod. The lower section of each ladder rod is provided with a ladder rod protrusion. The side of the ladder rod protrusion closest to the tank body is provided with a ladder rod tongue. A horizontal insertion hole is opened in the lower part of the tank body for inserting the ladder rod tongue. The ladder rod tongue is inserted into the horizontal insertion hole in the lower part of the tank body.
2. The toy oil tanker truck according to claim 1, characterized in that: The curved ladder is also equipped with two handrails, one at the front and one at the back. The lower ends of the two handrails are connected by a connecting rod in the middle of the handrail to form a U-shaped structure. Each handrail has a longitudinally extending lug at the upper end, which is inserted into the guardrail support. The upper section of the curved ladder is embedded in the U-shaped structure of the handrail, and the connecting rod in the middle of the handrail is located below the upper section of the curved ladder.
3. A toy oil tanker truck according to claim 1 or 2, characterized in that: The longitudinal dimension of the platform support block is equal to the longitudinal net space distance between the upper ends of the two ladder rods.
4. A toy oil tanker truck according to claim 2, characterized in that: The longitudinal dimension of the upper section of the curved ladder is equal to the longitudinal clear space distance between the front and rear handrails.
5. A toy oil tanker truck according to claim 1, characterized in that: The guardrail includes horizontal guardrail strips and vertical guardrail strips. The guardrail strip supports also include horizontal guardrail strip supports and vertical guardrail strip supports. The horizontal guardrail strips are installed on the horizontal guardrail strip supports, and the vertical guardrail strips are installed on the vertical guardrail strip supports. The horizontal guardrail strip supports and the vertical guardrail strip supports are manufactured separately. One of the horizontal guardrail strip supports and the other has a dovetail groove, and the other has a dovetail tenon. The dovetail groove extends vertically, and the dovetail tenon is inserted into the dovetail groove.