Engineering machinery fuel tank with protective structure

Abstract

This utility model belongs to the technical field of fuel tanks for engineering machinery, specifically relating to a fuel tank for engineering machinery with a protective structure. It includes a fuel tank body, a reinforcing mounting base for installation on the surface of the engineering machinery, and a through-type fuel injection pipe connected to the top of the fuel tank body. A matching pipe cap is installed at the end of the fuel injection pipe. A guide rod is connected to the side surface of the reinforcing mounting base, and a limit block is connected to the end of the guide rod. A sliding frame is fitted onto the surface of the guide rod, and a protective plate is connected to one side of the sliding frame. A spring strip connected to the fuel tank body is connected to the side surface of the sliding frame. This utility model, with its guide rod, limit block, sliding frame, protective plate, and spring strip, can protect against splashed stones, thus preventing direct impact from the splashed stones on the fuel tank body and causing damage that could lead to internal fuel leakage.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering machinery fuel tanks, specifically relating to engineering machinery fuel tanks with protective structures. Background Technology

[0002] As the "power lifeline" driving the performance of construction machinery, the hydraulic tank is not only the physical carrier of the hydraulic energy circulation and fuel supply system, but also the core hub connecting the equipment's life cycle, energy efficiency, and safety redundancy. Its design needs to deeply integrate three dimensions: working condition adaptability, component durability, and full life cycle economy. This involves optimizing the internal cavity structure of the tank through fluid dynamics simulation to ensure that the hydraulic oil can maintain its optimal operating temperature range of 50-70℃ under extreme loads, reducing the energy consumption of the hydraulic pump by 15%-20%. It also requires integrating a multi-stage filtration system (magnetic filter + 10μm precision paper filter element) to control the oil cleanliness within NAS 7 level, reducing the frequency of maintenance due to valve core wear. Furthermore, it necessitates the synergistic application of modular anti-surge baffles and impact-resistant composite materials (such as carbon fiber reinforced polyethylene) to ensure the tank maintains structural integrity when subjected to 30J of impact energy, avoiding unplanned downtime caused by oil leakage (the average loss from a single failure reaches 200% of the equipment's daily rental fee). This comprehensive optimization, encompassing everything from microscopic fluid properties to macroscopic structural strength, is the key to achieving a closed-loop value proposition for engineering machinery fuel tanks: cost reduction and efficiency improvement, safety assurance, and lifespan extension.

[0003] When construction machinery fuel tanks operate continuously in outdoor open-air conditions, their shells exposed to complex environments are highly susceptible to impacts from flying stones, falling parts, or external forces, which can cause dents, cracks, or even penetrating damage to the metal shells, thereby leading to the risk of hydraulic oil or fuel leakage. Utility Model Content

[0004] The purpose of this utility model is to provide an engineering machinery oil tank with a protective structure, which aims to solve the problem that in the prior art, when engineering machinery oil tanks are continuously operated in outdoor open-air conditions, their shells exposed to complex environments are easily subjected to flying stones, falling parts, or external impacts, resulting in dents, cracks, or even penetrating damage to the metal shell, which in turn leads to the risk of hydraulic oil or fuel leakage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an engineering machinery oil tank with a protective structure, including an oil tank body, a reinforcing mounting base for installation on the surface of the engineering machinery, an oil injection pipe being connected through the top of the oil tank body, and a matching pipe cap being installed at the end of the oil injection pipe; The side surface of the reinforced mounting base is connected to a guide rod, the end of the guide rod is connected to a limit block, the surface of the guide rod is fitted with a sliding frame, one side of the sliding frame is connected to a protective plate, and the side surface of the sliding frame is connected to a spring strip connected to the main body of the oil tank.

[0006] As a preferred embodiment of the protective structure of the engineering machinery oil tank of this utility model, the diameter of the circular hole through which the guide rod passes in the protective plate is smaller than the diameter of the limiting block, and the sliding frame moves axially on the surface of the guide rod.

[0007] As a preferred embodiment of the protective structure of the engineering machinery oil tank of this utility model, a drive motor is installed inside the closed cavity of the oil tank body, the output end of the drive motor is connected to a threaded rod, and a sealed bearing connected to the oil tank body is sleeved on the surface of the threaded rod.

[0008] As a preferred embodiment of the protective structure of the engineering machinery oil tank of this utility model, the end of the threaded rod located inside the oil tank body is fitted with a matching internal threaded tube, the end of the oil tank body is connected to a movable block, and an oil inlet hole is opened on the surface of the movable block located directly below the oil injection pipe. The diameter of the oil inlet hole is the same as the inner wall size of the oil injection pipe.

[0009] As a preferred embodiment of the protective structure of the engineering machinery oil tank of this utility model, a first sealing ring is connected to the inner wall of the oil tank body directly above the oil inlet, and a second sealing ring is connected to the inner wall of the oil tank body directly below the oil inlet.

[0010] As a preferred embodiment of the protective structure of the engineering machinery oil tank of this utility model, the movable block is provided with limit grooves on both sides, and the inner wall of the oil tank body is connected with two sets of limit slide rails that are adapted to the two limit grooves respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model, with its guide rod, limiting block, sliding frame, protective plate, and spring strip, can protect against splashing stones, thereby preventing the splashing stones from directly impacting the main body of the fuel tank and causing damage that could lead to internal oil leakage.

[0012] In this invention, when the drive motor is running, it drives the threaded rod to rotate. When the threaded rod rotates, it drives the inner threaded tube to move laterally. When the inner threaded tube moves laterally, it can drive the movable block to move laterally. When the movable block drives the oil inlet hole to the outside of the first sealing ring, the oil injection pipe can be sealed, thereby preventing the construction machinery with the oil tank body from being stolen outdoors. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view and a partial enlarged view of the present invention. Figure 3 This is a partial sectional view and a partially enlarged view of the side structure of this utility model; Figure 4 This is a partial sectional view of the main body connection structure of the fuel tank of this utility model; Figure 5 This is an exploded view of the movable block connection structure of this utility model.

[0014] In the diagram: 1. Oil tank body; 2. Reinforced mounting base; 3. Oil filling pipe; 4. Pipe cover; 5. Guide rod; 6. Limiting block; 7. Sliding frame; 8. Protective plate; 9. Spring strip; 10. Drive motor; 11. Threaded rod; 12. Sealed bearing; 13. Internal threaded tube; 14. Movable block; 15. Oil inlet; 16. First sealing ring; 17. Second sealing ring; 18. Limiting slide rail; 19. Limiting groove. Detailed Implementation

[0015] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 The present invention provides the following technical solution: an engineering machinery oil tank with a protective structure, including an oil tank body 1, a reinforcing mounting base 2 for installation on the surface of the engineering machinery, an oil injection pipe 3 being connected through the top of the oil tank body 1, and a matching pipe cap 4 being installed at the end of the oil injection pipe 3. The side surface of the reinforced mounting base 2 is connected to a guide rod 5, the end of the guide rod 5 is connected to a limit block 6, the surface of the guide rod 5 is fitted with a sliding frame 7, one side of the sliding frame 7 is connected to a protective plate 8, and the side surface of the sliding frame 7 is connected to a spring strip 9 that is connected to the oil tank body 1.

[0017] Preferably, the diameter of the circular hole through which the guide rod 5 passes in the protective plate 8 is smaller than the diameter of the limiting block 6, and the sliding frame 7 moves axially on the surface of the guide rod 5.

[0018] In actual use, when the protective plate 8 is impacted, it causes the sliding frame 7 to slide on the surface of the guide rod 5. The limit block 6 can limit the farthest position of the travel of the protective plate 8.

[0019] Preferably, a drive motor 10 is installed inside the closed cavity of the oil tank body 1, and a threaded rod 11 is connected to the output end of the drive motor 10. A sealed bearing 12 connected to the oil tank body 1 is sleeved on the surface of the threaded rod 11.

[0020] Preferably, the end of the threaded rod 11 located inside the oil tank body 1 is fitted with a matching internal threaded tube 13, and the end of the oil tank body 1 is connected to a movable block 14. An oil inlet hole 15 is opened on the surface of the movable block 14 located directly below the oil injection pipe 3, and the diameter of the oil inlet hole 15 is the same as the inner wall size of the oil injection pipe 3.

[0021] It should be noted that the drive motor 10 is connected to an external power supply through an external controller, and the operation of the drive motor 10 can be controlled through the external controller.

[0022] In practical use, when the drive motor 10 drives the threaded rod 11 to rotate, it can drive the inner threaded tube 13 to move laterally through the threaded connection. The lateral movement of the inner threaded tube 13 can drive the movable block 14 to move laterally. When the movable block 14 drives the oil inlet hole 15 to move to the outside of the first sealing ring 16, the oil injection pipe 3 can be closed at this time.

[0023] Preferably, a first sealing ring 16 is connected to the inner wall of the oil tank body 1 directly above the oil inlet 15, and a second sealing ring 17 is connected to the inner wall of the oil tank body 1 directly below the oil inlet 15.

[0024] In practical use, the upper and lower ends of the movable block 14 can be sealed to the inner wall of the oil tank body 1 through the first sealing ring 16 and the second sealing ring 17.

[0025] Preferably, the movable block 14 has limit grooves 19 on both sides, and the inner wall of the oil tank body 1 is connected to two sets of limit slide rails 18 that are adapted to the two limit grooves 19 respectively.

[0026] In practical use, when the movable block 14 is subjected to a force, it can slide on the surface of the limiting slide rail 18, which can limit the movement direction of the movable block 14.

[0027] Working principle: First, oil is injected into the oil tank body 1 through the oil injection pipe 3. Then, the pipe cover 4 is installed at the end of the oil injection pipe 3. Then, the drive motor 10 can be controlled by an external controller. When the drive motor 10 runs, it can drive the threaded rod 11 to rotate inside the sealed bearing 12. When the threaded rod 11 rotates, it can drive the inner threaded tube 13 to move laterally. When the inner threaded tube 13 moves laterally, it can drive the movable block 14 to move laterally. When the movable block 14 drives the oil inlet hole 15 to move to the outside of the first sealing ring 16, the oil injection pipe 3 can be sealed, thereby preventing the construction machinery with the oil tank body 1 from being stolen outdoors. When construction machinery with fuel tank body 1 is used outdoors, flying stones may occur. At this time, the stones will hit the protective plate 8. When the protective plate 8 is hit, it can drive the sliding frame 7 to slide on the surface of the guide rod 5. When the sliding frame 7 slides, it can squeeze the spring strip 9. When the spring strip 9 is squeezed, it can absorb the impact force through its own elasticity, thereby avoiding damage to the fuel tank body 1.

[0028] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An engineering machine oil tank having a protective structure, comprising an oil tank main body (1), characterized in that: The reinforcement mounting base (2) is used to install on the surface of engineering machinery. The top of the oil tank body (1) is connected to an oil injection pipe (3), and the end of the oil injection pipe (3) is equipped with a matching pipe cap (4). The side surface of the reinforced mounting base (2) is connected to a guide rod (5), the end of the guide rod (5) is connected to a limit block (6), the surface of the guide rod (5) is fitted with a sliding frame (7), one side of the sliding frame (7) is connected to a protective plate (8), and the side surface of the sliding frame (7) is connected to a spring strip (9) connected to the oil tank body (1).

2. The engineering machinery fuel tank with a protective structure according to claim 1, characterized in that: The diameter of the circular hole through which the guide rod (5) passes in the protective plate (8) is smaller than the diameter of the limiting block (6), and the sliding frame (7) moves axially on the surface of the guide rod (5).

3. The engineering machinery fuel tank with a protective structure according to claim 1, characterized in that: The internal closed chamber of the oil tank body (1) is equipped with a drive motor (10), and the output end of the drive motor (10) is connected to a threaded rod (11). A sealed bearing (12) connected to the oil tank body (1) is sleeved on the surface of the threaded rod (11).

4. The engineering machinery fuel tank with a protective structure according to claim 3, characterized in that: An internal threaded tube (13) is fitted to the end of the threaded rod (11) located inside the oil tank body (1). A movable block (14) is connected to the end of the oil tank body (1). An oil inlet hole (15) is opened on the surface of the movable block (14) located directly below the oil injection pipe (3). The diameter of the oil inlet hole (15) is the same as the inner wall size of the oil injection pipe (3).

5. The engineering machinery fuel tank with a protective structure according to claim 4, characterized in that: A first sealing ring (16) is connected to the inner wall of the oil tank body (1) located directly above the oil inlet (15), and a second sealing ring (17) is connected to the inner wall of the oil tank body (1) located directly below the oil inlet (15).

6. The engineering machinery fuel tank with a protective structure according to claim 5, characterized in that: Limiting grooves (19) are respectively opened on both sides of the movable block (14), and the inner wall of the oil tank body (1) is connected to two sets of limiting slide rails (18) that are adapted to the two limiting grooves (19).

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