Fuel tank low oil level oil suction assembly

Abstract

The present application relates to a kind of fuel tank oil low position oil suction assembly, including fuel tank body, the fuel tank body includes the cavity containing oil liquid;Including oil suction port, the oil suction port is set on cavity, the port of the oil suction port outside cavity is communicated with oil supply pipeline;Including the oil suction tube in cavity and communicated with oil suction port;The inner end of the oil suction tube is communicated with oil suction port, the outer end of the oil suction tube is low position oil suction end;Including the weight of low position oil suction end, the oil suction tube is flexible pipe, the weight drags low position oil suction end to the lowest position of oil liquid.By such design, low position oil suction end can always be in the lowest point of oil liquid, ensure that oil suction port can suck oil, gain time for refueling again.

Description

Technical Field

[0001] This invention relates to a fuel tank low-level oil suction assembly. Background Technology

[0002] Currently, fuel tanks on construction machinery are prone to tilting during operation. When the fuel level in the tank is low, air can be drawn into the fuel intake, creating a safety hazard. Existing solutions involve installing a fuel level sensor at a certain height inside the tank, triggering an alarm when the fuel level drops below a safe level to remind the driver to refuel. However, when the tank is tilted and fuel is concentrated on one side of the alarm, the fuel level detection can be inaccurate. Furthermore, current solutions are inadequate when refueling cannot be done immediately, but continued operation is still necessary. The current technology needs to provide a solution that ensures fuel can be drawn into the fuel intake even when the fuel level is low. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects in the prior art and provide a fuel tank low-level oil suction component that can ensure that oil can be sucked up at the oil suction port even when the oil level is low.

[0004] To achieve the above objectives, the technical solution of the present invention is to provide a fuel tank low-level oil suction assembly, including a fuel tank body, wherein the fuel tank body includes a cavity for containing oil.

[0005] It includes an oil suction port, which is disposed on the cavity, and the port of the oil suction port outside the cavity is connected to the oil supply pipeline;

[0006] It includes an oil suction pipe connected to an oil suction port inside the cavity; the inner end of the oil suction pipe is connected to the oil suction port, and the outer end of the oil suction pipe is a low-position oil suction end;

[0007] It includes a weight placed at the low-position oil suction end, and the oil suction pipe is a flexible pipe. The weight drags the low-position oil suction end to the lowest oil level.

[0008] This design ensures that the low-position oil suction end is always at the lowest point of the oil, guaranteeing that the oil suction port can draw in oil and buying time for refueling.

[0009] Furthermore, the fuel tank body is rectangular in shape, and the fuel inlet is located at the center of the bottom of the fuel tank body.

[0010] This design represents a specific optimization of the fuel tank's structure. Positioning the fuel inlet at the center of the bottom of the fuel tank reduces the negative pressure at the inlet, thus lowering the pressure on the fuel supply line.

[0011] Furthermore, a turntable is connected to the center of the bottom of the fuel tank body, and an oil passage is reserved in the turntable, which connects the oil suction port and the oil suction pipe.

[0012] This design allows the turntable to rotate easily within the oil tank, making it easier for the suction pipe to find the lowest point of the oil level.

[0013] Furthermore, the bottom of the fuel tank body is provided with a fuel inlet boss, and a fuel inlet channel is opened inside the fuel inlet boss. The bottom of the fuel inlet boss is connected to the turntable through a bearing.

[0014] This design reduces the friction of the turntable rotating around the oil suction port boss.

[0015] Furthermore, the bottom of the turntable is recessed to form an oil suction port boss receiving groove, and a connecting hole is provided at the upper part of the oil suction port boss receiving groove. The connecting hole connects the oil suction port channel and the turntable oil passage channel. A sealing ring is provided at the upper part of the oil suction port boss, and the sealing ring is pressed between the inner wall of the connecting hole and the upper part of the oil suction port boss. The bottom of the oil suction port boss and the bottom of the oil suction port boss receiving groove are connected by a bearing.

[0016] This design ensures the sealing of the connecting hole while allowing the turntable to rotate.

[0017] Furthermore, the connecting hole is formed by the inward rolling of the wall of the oil suction port boss receiving groove.

[0018] This design makes the structure more compact and facilitates sealing of the connecting holes.

[0019] Furthermore, one end of the turntable protrudes outward to form an inclined sensing block, the turntable oil passage extends to the inclined sensing block, and the outermost end of the inclined sensing block is connected to the oil suction pipe.

[0020] With this design, when the oil tank is tilted, the tilt-sensing pendulum can more quickly find the direction of the lowest point of the oil.

[0021] Furthermore, the oil suction pipe is a corrugated pipe.

[0022] This design allows the oil suction pipe to be extended or retracted to accommodate different oil depths.

[0023] Furthermore, the low-position oil suction end is provided with an oil suction head, and the oil suction head has multiple oil suction holes, which are connected to the oil suction pipe.

[0024] This design facilitates the smooth adsorption of oil.

[0025] Furthermore, the oil suction hole is opened on the bottom surface of the oil suction head, and the bottom surface of the oil suction head is provided with multiple protruding ridges, with an oil inlet gap between the multiple protruding ridges.

[0026] This design allows the oil to be guided to the suction port through the oil inlet gap.

[0027] The advantages and beneficial effects of this invention are as follows: through this design, the low-position oil suction end can always be at the lowest point of the oil, ensuring that the oil suction port can draw in oil, thus saving time for refueling. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the fuel tank body structure in Embodiment 2 of the present invention;

[0029] Figure 2 This is a schematic diagram of the fuel tank supply pipeline structure in Embodiment 2 of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection structure between the turntable and the oil tank body in Embodiment 2 of the present invention;

[0031] Figure 4 This is a cross-sectional view showing the connections of various components through which the oil flows in Embodiment 2 of the present invention;

[0032] Figure 5 for Figure 4 A magnified schematic diagram of the mechanism in section A;

[0033] Figure 6 This is a schematic diagram of the oil suction head structure;

[0034] Figure 7 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0035] In the diagram: 1. Oil tank body; 2. Cavity; 3. Oil supply line; 4. Oil suction pipe; 5. Low-position oil suction end; 6. Weight; 7. Oil level sensor; 8. Turntable; 9. Turntable oil passage; 10. Oil suction port boss; 11. Oil suction port passage; 12. Bearing; 13. Oil suction port boss receiving groove; 14. Connecting hole; 15. Sealing ring; 16. Tilting sensing block; 17. Oil suction head; 18. Oil suction hole; 19. Raised ridge; 20. Oil inlet gap. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0037] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0038] The following section will first combine the appendix. Figure 1-7 Detailed description:

[0039] Example 1: A fuel tank low-level oil suction assembly, comprising a fuel tank body 1, wherein the fuel tank body 1 includes a cavity 2 for containing oil;

[0040] It includes an oil suction port, which is disposed on the cavity 2, and the port of the oil suction port outside the cavity 2 is connected to the oil supply pipeline 3;

[0041] Includes an oil suction pipe 4 connected to an oil suction port inside the cavity 2; the inner end of the oil suction pipe 4 is connected to the oil suction port, and the outer end of the oil suction pipe 4 is a low-position oil suction end 5;

[0042] It includes a weight 6 set at the low oil suction end 5, and the oil suction pipe 4 is a flexible pipe. The weight 6 drags the low oil suction end 5 to the lowest oil level.

[0043] In this embodiment, the oil suction port can be opened at the upper part of the cavity 2, the oil suction pipe 4 hangs down into the oil, and the lower oil suction end 5 is dragged to the lowest position of the oil by the dragging of the weight 6. With this design, no matter how the fuel tank body 1 is tilted, it will not suck up the empty.

[0044] An oil level sensor 7 is installed inside the cavity 2 to remind you to add oil when the oil level is low.

[0045] Example 2

[0046] Further optimizations to Example 1:

[0047] The fuel tank body 1 is rectangular, and the fuel inlet is located at the center of the bottom of the fuel tank body 1.

[0048] A turntable 8 is connected to the center of the bottom of the fuel tank body 1. A turntable oil passage 9 is reserved in the turntable 8, which connects the oil suction port and the oil suction pipe 4.

[0049] The bottom of the fuel tank body 1 is provided with a fuel inlet boss 10, and the fuel inlet boss 10 has a fuel inlet channel 11 inside. The bottom of the fuel inlet boss 10 is connected to the turntable 8 through a bearing 12.

[0050] The bottom of the turntable 8 is recessed to form an oil suction port boss receiving groove 13. A connecting hole 14 is provided at the upper part of the oil suction port boss receiving groove 13, connecting the oil suction port channel 11 and the turntable oil passage channel 9. A sealing ring 15 is provided at the upper part of the oil suction port boss 10, pressing the sealing ring 15 between the inner wall of the connecting hole 14 and the upper part of the oil suction port boss 10. The bottom of the oil suction port boss 10 and the bottom of the oil suction port boss receiving groove 13 are connected by a bearing 12. This achieves low-resistance rotation while also providing a seal, preventing oil leakage at the connecting hole 14.

[0051] The connecting hole 14 is formed by the inward rolling of the groove wall of the oil suction port boss receiving groove 13.

[0052] One end of the turntable 8 protrudes outward to form an inclined sensing block 16, and the turntable oil passage 9 extends to the inclined sensing block 16. The outermost end of the inclined sensing block 16 is connected to the oil suction pipe 4.

[0053] The oil suction pipe 4 is a corrugated pipe. This allows the length of the oil suction pipe 4 to be extended and retracted to adapt to different oil depth positions.

[0054] The low-position oil suction end 5 is provided with an oil suction head 17, and the oil suction head 17 has a plurality of oil suction holes 18, which are connected to the oil suction pipe 4.

[0055] The oil suction hole 18 is opened on the bottom surface of the oil suction head 17, and the bottom surface of the oil suction head 17 is provided with multiple protruding ridges 19, with an oil inlet gap 20 left between the multiple protruding ridges 19.

[0056] Conventional fuel tank bodies 1 are mostly rectangular in shape, with a rectangular bottom. In construction machinery operations, the lowest points of the fuel level are typically at the four corners of the bottom surface of the fuel tank body 1. Therefore, placing the fuel inlet at the location closest to these four corners is ideal, which is the center of the bottom surface of the fuel tank body 1. To reduce the pressure from fuel adsorption, the fuel inlet also needs to be located on the bottom surface of the fuel tank body 1.

[0057] When the fuel tank is tilted, the tilt sensing block 16, due to gravity, causes the fuel to tend towards a consistent direction. Specifically, the line connecting the midpoint of the outer edge of the tilt sensing block 16 and the point of rotation points towards the lowest point of the fuel. This helps to better guide the fuel suction pipe 4 to the correct direction, and the weight 6 will drag the lower fuel suction end 5 to the lowest fuel level. The fuel then passes sequentially through the fuel inlet gap 20, the fuel suction hole 18, the fuel suction pipe 4, the rotary oil passage 9, the connecting hole 14, the fuel suction port passage 11, and the fuel supply pipe 3, thus achieving fuel delivery.

[0058] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fuel tank low-level oil suction assembly, characterized in that: Includes a fuel tank body (1), the fuel tank body (1) including a cavity (2) for containing oil; Includes an oil suction port, which is located on the cavity (2), and the port of the oil suction port outside the cavity (2) is connected to the oil supply pipeline (3); Includes an oil suction pipe (4) connected to the oil suction port inside the cavity (2); the inner end of the oil suction pipe (4) is connected to the oil suction port, and the outer end of the oil suction pipe (4) is a low-position oil suction end (5). Includes a weight (6) set at the low oil suction end (5), the oil suction pipe (4) is a flexible pipe, and the weight (6) drags the low oil suction end (5) to the lowest oil level; The fuel tank body (1) is rectangular, and the fuel inlet is located at the center of the bottom of the fuel tank body (1). The bottom center of the fuel tank body (1) is connected to a turntable (8), and the turntable (8) has a turntable oil passage (9) reserved inside, which connects the oil suction port and the oil suction pipe (4). The fuel tank body (1) has a protruding oil suction port boss (10) at the bottom, and an oil suction port channel (11) is opened inside the oil suction port boss (10). The bottom of the oil suction port boss (10) is connected to the turntable (8) through a bearing (12). The bottom of the turntable (8) is recessed to form an oil suction port boss receiving groove (13). A connecting hole (14) is provided on the upper part of the oil suction port boss receiving groove (13). The connecting hole (14) connects the oil suction port channel (11) and the turntable oil passage channel (9). A sealing ring (15) is provided on the upper part of the oil suction port boss (10). The sealing ring (15) is pressed between the inner wall of the connecting hole (14) and the upper part of the oil suction port boss (10). The bottom of the oil suction port boss (10) and the bottom of the oil suction port boss receiving groove (13) are connected by a bearing (12). The connecting hole (14) is formed by the inward rolling of the groove wall of the oil suction port boss receiving groove (13); One end of the turntable (8) protrudes outward to form an inclined sensing block (16), and the turntable oil passage (9) extends to the inclined sensing block (16). The outermost end of the inclined sensing block (16) is connected to the oil suction pipe (4). The oil suction pipe (4) is a corrugated pipe; The low-position oil suction end (5) is provided with an oil suction head (17), and the oil suction head (17) is provided with multiple oil suction holes (18). The oil suction holes (18) are connected to the oil suction pipe (4). The oil suction holes (18) are opened on the bottom surface of the oil suction head (17), and the bottom surface of the oil suction head (17) is provided with multiple protruding ridges (19) facing downward. An oil inlet gap (20) is left between the multiple protruding ridges (19).

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