Oil tank of light crawler tractor

The design of the dual fuel tank assembly and connecting assembly solves the problems of loose fuel tanks and insufficient capacity in tracked tractors, achieving increased fuel storage capacity and uniform weight distribution, and ensuring stable connection of the fuel tanks and uniform fuel supply.

CN224075397UActive Publication Date: 2026-04-03XINGGUANG AGRI MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The fuel tanks of existing tracked tractors are prone to loosening, have small capacity, and are not conducive to overall balance.

Method used

It adopts a dual-tank assembly and connecting assembly design, including an inner tank, an outer tank, a flexible refueling pipe, a connecting pipe, a base, fixing bolts, and a limiting rod. The limiting rod is attracted by a magnetic block to achieve a stable connection. The flexible refueling pipe improves adaptability, the reinforcing ribs enhance structural strength, and the connecting pipe ensures uniform fuel distribution.

Benefits of technology

It improves the oil storage capacity and stability of the oil tank, ensures uniform weight distribution, prevents the fixing bolts from loosening, and achieves stable connection and uniform oil supply of the oil tank.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a light caterpillar tractor oil tank, and belongs to the technical field of tractors. The oil tank of the light caterpillar tractor comprises a double-oil-tank assembly and a connecting assembly, the double-oil-tank assembly comprises an inner tank, an outer tank, a flexible oil filling pipe and a communicating pipe, the inner tank is fixedly connected into the outer tank, the connecting assembly comprises a base, a fixing bolt and a limiting rod, the outer tank is placed in the base, a groove is formed in the base, and the limiting rod is arranged in the groove. By arranging the inner tank, the outer tank, the flexible oil filling pipe and the communicating pipe and adopting the design of double oil tanks, the two oil tanks are effectively distributed on the two sides of the tractor, the oil storage amount can be increased, it can be guaranteed that the weight is evenly distributed on the two sides of the tractor, stability of the tractor is facilitated, and communication of the two oil tanks is kept through the communicating pipe; and by arranging a base, a fixing bolt and a limiting rod, limiting movement can be conducted on the fixing bolt, so that rotation and loosening of the fixing bolt are limited, and the stability of the fixed outer box is guaranteed.
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Description

Technical Field

[0001] This application relates to the field of tractors, and more specifically, to a fuel tank for a light-duty tracked tractor. Background Technology

[0002] A tractor is a self-propelled power unit used to tow and drive mobile machinery to complete various mobile tasks. It can also be used for stationary work. It consists of an engine, transmission, running gear, steering, hydraulic suspension, power output, electrical instruments, driving controls, and traction systems or devices. Light-duty tracked tractors, also called "tracked tractors" or "tracked tractors," are a type of tractor.

[0003] Currently, tracked tractors are generally equipped with fuel tank assemblies. In existing technologies, fuel tank assemblies are usually fixed to the mounting base with bolts. Over time, they are prone to loosening. Furthermore, fuel tanks located on one side have a small capacity due to size limitations, which is not conducive to the overall balance. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a lightweight tracked tractor fuel tank, which aims to improve the problems mentioned in the background art.

[0005] This application provides a fuel tank for a lightweight tracked tractor, including a dual fuel tank assembly and a connecting assembly.

[0006] The dual fuel tank assembly includes an inner tank, an outer tank, a flexible refueling pipe, and a connecting pipe. The inner tank is fixedly connected inside the outer tank, the flexible refueling pipe connects to the inner tank and passes through the outer tank, and the connecting pipe is disposed between the two inner tanks.

[0007] The connecting assembly includes a base, a fixing bolt, and a limiting rod. The outer box is placed inside the base, and the base has a groove. The fixing bolt passes through the groove and is threaded to the outer box. One end of the limiting rod is rotatably disposed in the groove and abuts against the fixing bolt.

[0008] In one specific implementation, a limiting groove is formed on the top of the base, and the outer casing is located within the limiting groove.

[0009] In the above implementation process, a limiting groove is set to fit into the outer box, and the limiting groove and the groove are connected.

[0010] In one specific implementation, a magnet is provided at the bottom of the groove, and the magnet attracts the limiting rod.

[0011] In the above implementation process, by setting a magnetic block, the limiting rod can be attracted by the magnetic block, thereby attracting the limiting rod into the groove.

[0012] In one specific implementation, one end of the limiting rod is rotatably disposed in the groove via a rotating shaft, and the other end of the limiting rod is provided with a pull rod.

[0013] In the above implementation process, by setting a pull rod, it is convenient to pull the pull rod to drive the limit rod to rotate, and rotate the limit rod out of the groove.

[0014] In one specific implementation, the flexible refueling pipe is a high-strength rubber pipe, and the port of the flexible refueling pipe is threadedly connected with an end cap.

[0015] In the above implementation process, by setting up a flexible refueling pipe, the flexibility can be improved, allowing it to be bent and adjusted within a certain range during refueling, which facilitates docking with different types of refueling equipment, and refueling can be carried out smoothly even if there is a certain angle deviation.

[0016] In one specific implementation, the flexible refueling pipe is fixedly sleeved with an mounting plate, and the mounting plate is fixedly connected to the outside of the outer casing.

[0017] In the above implementation process, an installation plate is set up to fix the top of the flexible refueling pipe that penetrates the outer casing.

[0018] In one specific implementation, the connecting pipe is connected to a valve, and the connecting pipe is also connected to an oil pipeline.

[0019] In the above implementation process, by setting a valve to control the opening and closing of the connecting pipe, it is convenient to close the valve to prevent leakage from the good oil tank when one of the oil tanks is being repaired or replaced.

[0020] In one specific implementation, the outer casing surface is provided with an anti-corrosion layer, and the outer casing interior is provided with reinforcing ribs.

[0021] In the above implementation process, by setting reinforcing ribs, the structural strength of the outer box is improved, so that the outer box has a stable protective function and will not be easily squeezed and deformed.

[0022] Beneficial effects: This application provides a lightweight tracked tractor fuel tank. By setting an inner tank, an outer tank, a flexible refueling pipe, and a connecting pipe, a dual fuel tank design is adopted, which effectively distributes the two tanks on both sides of the tractor. This not only increases the fuel storage capacity but also ensures that the weight is evenly distributed on both sides of the tractor, which is beneficial to the stability of the tractor. The connecting pipe keeps the two fuel tanks connected, which is conducive to the even distribution of fuel in the two tanks. By setting a base, fixing bolts, and limiting rods, the fixing bolts can be limited to restrict their rotation and loosening, thereby ensuring the stability of fixing the outer tank. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the fuel tank structure of a lightweight tracked tractor provided in the embodiments of this application;

[0025] Figure 2 A schematic diagram of the connecting pipe structure provided for an embodiment of this application;

[0026] Figure 3 A schematic diagram of the dual fuel tank assembly structure provided in this application embodiment;

[0027] Figure 4 A schematic diagram of the base structure provided for an embodiment of this application.

[0028] In the diagram: 100 - Dual fuel tank assembly; 110 - Inner tank; 120 - Outer tank; 121 - Reinforcing rib; 130 - Flexible refueling hose; 131 - Mounting plate; 140 - Connecting pipe; 141 - Valve; 150 - End cap; 200 - Connecting assembly; 210 - Base; 211 - Groove; 212 - Limiting groove; 213 - Magnet block; 220 - Fixing bolt; 240 - Limiting rod; 242 - Pull rod. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0030] Please see Figures 1-4 This application provides a fuel tank for a lightweight tracked tractor, including a dual fuel tank assembly 100 and a connecting assembly 200.

[0031] Please see Figure 1 , 2 3. The dual fuel tank assembly 100 includes an inner tank 110, an outer tank 120, a flexible fuel filler pipe 130, and a connecting pipe 140. The inner tank 110 is fixedly connected to the outer tank 120. The flexible fuel filler pipe 130 connects to the inner tank 110 and penetrates the outer tank 120. The connecting pipe 140 connects and is disposed between the two inner tanks 110.

[0032] Among them, the flexible refueling pipe 130 is a high-strength rubber pipe, and the end cap 150 is threadedly connected to the end of the flexible refueling pipe 130. By setting the flexible refueling pipe 130, the flexibility can be improved, so that it can be bent and adjusted within a certain range during refueling, which is convenient for docking with different types of refueling equipment. Even if there is a certain angle deviation, refueling can be carried out smoothly.

[0033] Specifically, the flexible refueling pipe 130 is fixedly sleeved with an installation plate 131, which is fixedly connected to the outside of the outer casing 120. The installation plate 131 is used to fix the top end of the flexible refueling pipe 130 that penetrates the outer casing 120.

[0034] In one specific implementation, the connecting pipe 140 is connected to a valve 141, and the connecting pipe 140 is connected to an oil supply pipe. By setting the valve 141, the opening and closing of the connecting pipe 140 can be controlled to facilitate the closure of the valve 141 when one of the oil tanks is being repaired or replaced, thus preventing leakage from the good oil tank. The oil supply pipe is used to connect to the engine for oil supply.

[0035] In this embodiment, the outer casing 120 is provided with an anti-corrosion layer on its surface and a reinforcing rib 121 is provided inside the outer casing 120. By providing the reinforcing rib 121, the structural strength of the outer casing 120 is improved, so that the outer casing 120 has a stable protective function and will not be easily squeezed and deformed.

[0036] Please see Figure 1 , 3 4. The connecting component 200 includes a base 210, a fixing bolt 220 and a limiting rod 240. The outer box 120 is placed inside the base 210. The base 210 has a groove 211. The fixing bolt 220 passes through the groove 211 and is threaded to the outer box 120. One end of the limiting rod 240 is rotatably disposed in the groove 211 and abuts against the fixing bolt 220.

[0037] The base 210 has a limiting groove 212 on its top, and the outer box 120 is located in the limiting groove 212. The limiting groove 212 is provided to fit the outer box 120. The limiting groove 212 and the groove 211 are connected.

[0038] Specifically, a magnet 213 is provided at the bottom of the groove 211. The magnet 213 attracts the limiting rod 240. By providing the magnet 213, the limiting rod 240 can be attracted and thus be attracted into the groove 211.

[0039] In this embodiment, one end of the limiting rod 240 is rotatably disposed in the groove 211 via a rotating shaft, and the other end of the limiting rod 240 is provided with a pull rod 242. By providing the pull rod 242, it is convenient to pull the pull rod 242 to drive the limiting rod 240 to rotate and rotate the limiting rod 240 out of the groove 211.

[0040] The working principle of the fuel tank of this light tracked tractor is as follows: During installation, the outer casing 120 is placed into the limiting groove 212, the fixing bolt 220 passes through the groove 211 and is tightened to the bottom of the outer casing 120, and then the limiting rod 240 is rotated down and rotated into the groove 211. The limiting rod 240 is attracted by the magnet 213, thus attracting the limiting rod 240 into the groove 211. The limiting rod 240 abuts against and restricts the axial movement of the fixing bolt 220, thereby restricting the rotation of the fixing bolt 220, so that the outer casing 120 connected by the fixing bolt 220 is stable and does not loosen. At the same time, the dual fuel tank design allows the two to be effectively distributed on both sides of the tractor, which not only increases the fuel storage capacity, but also ensures that the weight is evenly distributed on both sides of the tractor. The connecting pipe 140 keeps the two fuel tanks connected. The two fuel tanks are arranged on both sides of the seat, and the connecting pipe 140 is arranged behind the seat, which is conducive to the even distribution of fuel in the fuel tanks on both sides and the stability of the tractor.

[0041] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fuel tank for a lightweight tracked tractor, characterized in that, include A dual fuel tank assembly (100) includes an inner tank (110), an outer tank (120), a flexible refueling pipe (130), and a connecting pipe (140). The inner tank (110) is fixedly connected inside the outer tank (120). The flexible refueling pipe (130) connects to the inner tank (110) and passes through the outer tank (120). The connecting pipe (140) is connected between the two inner tanks (110). A connecting assembly (200) includes a base (210), a fixing bolt (220), and a limiting rod (240). The outer casing (120) is placed inside the base (210). The base (210) has a groove (211). The fixing bolt (220) passes through the groove (211) and is threaded to the outer casing (120). One end of the limiting rod (240) is rotatably disposed in the groove (211) and abuts against the fixing bolt (220).

2. The fuel tank for a lightweight tracked tractor according to claim 1, characterized in that, The base (210) has a limiting groove (212) on its top, and the outer box (120) is located in the limiting groove (212).

3. The fuel tank for a lightweight tracked tractor according to claim 1, characterized in that, A magnet (213) is provided at the bottom of the groove (211), and the magnet (213) attracts the limiting rod (240).

4. The fuel tank for a lightweight tracked tractor according to claim 1, characterized in that, One end of the limiting rod (240) is rotatably disposed in the groove (211) via a rotating shaft, and the other end of the limiting rod (240) is provided with a pull rod (242).

5. A lightweight tracked tractor fuel tank according to claim 1, characterized in that, The flexible refueling pipe (130) is a high-strength rubber pipe, and the port of the flexible refueling pipe (130) is threadedly connected with an end cap (150).

6. The fuel tank for a lightweight tracked tractor according to claim 1, characterized in that, The flexible refueling pipe (130) is fixedly sleeved with an installation plate (131), and the installation plate (131) is fixedly connected to the outside of the outer casing (120).

7. A lightweight tracked tractor fuel tank according to claim 1, characterized in that, The connecting pipe (140) is connected to a valve (141), and the connecting pipe (140) is connected to an oil pipeline.

8. A lightweight tracked tractor fuel tank according to claim 1, characterized in that, The outer casing (120) is provided with an anti-corrosion layer on its surface, and the outer casing (120) is provided with reinforcing ribs (121) inside.