Oil duct structure capable of preventing bubbles and splashing, diesel oil tank and excavator

Abstract

The utility model discloses an oil duct structure capable of preventing bubbles and splashing, a diesel oil tank and an excavator. The oil duct structure comprises an oil filling channel, an oil return cavity, an oil filling port and an oil return port. The refueling channel is fixed on the inner wall of the oil tank, and the bottom extends to the bottom surface of the oil tank; the oil filling port is fixed to the outer wall of the oil tank and communicated with the oil filling channel, and oil enters the oil tank from the oil filling port and flows to the bottom of the oil tank through the oil filling channel. The oil return cavity is fixed on the inner wall of the oil tank and is communicated with the oiling channel; the oil return opening is fixed to the outer wall of the oil tank and communicated with the oil return cavity, and return oil enters the oil return cavity in the oil tank through the oil return opening and then flows to the bottom of the oil tank through the oil filling channel. According to the utility model, gun jumping caused by increased refueling resistance due to a large number of bubbles and splashing generated by large flow during refueling and oil return can be effectively prevented, and an operator can conveniently carry out refueling and maintenance.

Description

Technical Field

[0001] The utility model relates to an oil channel structure for preventing the generation of bubbles and splashes, belonging to the technical field of diesel tanks. Background Art

[0002] The existing patent CN 102862632A proposes a splash prevention structure, which is to prevent the oil from directly splashing out of the tank port and to guide the bubbles generated during the refueling process through the overflow pipe, but it cannot prevent the generation of bubbles; the existing patent CN 201863708U proposes a tank anti-oil vibration splash structure, which prevents the oil from overflowing from the tank port when the tank vibrates.

[0003] Although the existing diesel filling technology for super-large tonnage excavators uses fast filling, it has the following problems:

[0004] 1) When refueling from the bottom of the fuel tank, as the diesel level rises, the refueling resistance increases. When the diesel tank is high, the fuel tank may not be filled up and the nozzle may jump;

[0005] 2) When refueling from the top of the tank, the flow rate is large, and as the oil falls, it is easy to generate a large number of bubbles and oil splashes. Summary of the invention

[0006] In view of the defects of the prior art, in order to solve the problems of a large number of bubbles and splashing of the oil when quickly filling diesel, the utility model specially designs an oil channel structure that prevents the generation of bubbles and splashing when filling diesel.

[0007] The utility model is implemented according to the following technical solutions:

[0008] In a first aspect, the utility model provides an oil channel structure for preventing the generation of bubbles and splashes, comprising:

[0009] A refueling channel is fixed on the inner wall of the fuel tank, and the bottom of the refueling channel extends to the bottom surface of the fuel tank;

[0010] A refueling port is fixed on the outer wall of the fuel tank and is connected to the refueling channel. The oil enters the fuel tank from the refueling port and flows to the bottom of the fuel tank through the refueling channel.

[0011] An oil return chamber, fixed on the inner wall of the oil tank and connected with the oil filling passage;

[0012] The oil return port is fixed on the outer wall of the oil tank and is connected to the oil return cavity. The return oil enters the oil return cavity inside the oil tank through the oil return port and then flows to the bottom of the oil tank through the refueling channel.

[0013] In some embodiments, the refueling channel is a straight-cylindrical structure, and a plurality of air holes are provided on the side wall and / or the top wall of the refueling channel.

[0014] In some embodiments, the refueling channel is formed by welding a U-shaped bent plate and a top plate, and the U-shaped bent plate is welded to the inner wall of the fuel tank to surround the refueling port.

[0015] In some embodiments, the oil return chamber is connected between the side wall of the refueling channel and the inner wall of the oil tank, and has an overall structure that is wide at the top and narrow at the bottom. Multiple air holes are provided on the side wall and / or the top wall of the oil return chamber.

[0016] In some embodiments, the oil return chamber is welded by a bent plate and a vertical plate, and the bent plate is welded to the inner wall of the oil tank and the side wall of the refueling channel, and surrounds the oil return port therein; an oil port is provided on the side wall of the refueling channel wrapped by the oil return chamber, so as to facilitate the return oil to flow from the oil return chamber into the refueling channel.

[0017] In some embodiments, a baffle with a plurality of oil-permeable holes is fixedly connected to the refueling passage below the refueling port and the oil return port.

[0018] In some embodiments, the oil filling port and the oil return port are located on the same outer side wall of the oil tank, and both are located substantially on the same horizontal line.

[0019] In some embodiments, the oil filling port is a welded flange, and the oil return port is a welded joint.

[0020] In a second aspect, the utility model provides a diesel tank equipped with the above-mentioned oil channel structure for preventing the generation of bubbles and splashes.

[0021] In a third aspect, the utility model provides an excavator equipped with the above-mentioned oil channel structure for preventing the generation of bubbles and splashes; or, equipped with the above-mentioned diesel tank.

[0022] Beneficial effects of the utility model:

[0023] 1. The oil channel structure can effectively prevent a large number of bubbles and splashes caused by large flow during refueling and oil return, which will increase the refueling resistance and cause the gun to jump, making it convenient for the operator to refuel and maintain.

[0024] 2. The refueling channel is designed with a baffle inside to effectively prevent the theft of diesel by directly inserting the oil pipe from the refueling port, thus avoiding economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] In the attached picture:

[0027] Figure 1 A three-dimensional diagram of the oil channel structure for preventing bubbles and splashes of the utility model;

[0028] Figure 2 This is a cross-sectional view of the oil passage structure for preventing bubbles and splashes of the utility model;

[0029] Figure 3 A side view of the oil channel structure for preventing bubbles and splashes according to the utility model;

[0030] Figure 4 It is a schematic diagram of the oil filling port and the oil return port of the utility model.

[0031] Figure identification: 1, oil return chamber, 2, refueling channel, 3, baffle, 4-refueling port, 5-oil return port, 1-1, bent plate, 1-2, vertical plate, 2-1, top plate, 2-2, U-shaped bent plate.

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides an oil channel structure for preventing the generation of bubbles and splashes, comprising a refueling channel 2, an oil return chamber 1, a refueling port 4 and an oil return port 5; the refueling channel 2 is fixed on the inner wall of the fuel tank, and the bottom of the refueling channel 2 extends to the bottom of the fuel tank; the refueling port 4 is fixed on the outer wall of the fuel tank and is connected with the refueling channel, and the oil enters the interior of the fuel tank from the refueling port and flows to the bottom of the fuel tank through the refueling channel; the oil return chamber 1 is fixed on the inner wall of the fuel tank and is connected with the refueling channel 2; the oil return port 5 is fixed on the outer wall of the fuel tank and is connected with the oil return chamber 1, and the return oil enters the oil return chamber 1 inside the fuel tank through the oil return port 5, and then flows to the bottom of the fuel tank through the refueling channel 2.

[0037] The specific implementation of the fuel filling passage in the above embodiment is given below.

[0038] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown, the refueling channel 2 is a straight-cylindrical structure, and a plurality of air holes are provided on the side wall of the refueling channel 2 and / or the top wall of the refueling channel 2.

[0039] Preferred solution: the refueling channel 2 is formed by welding a U-shaped bent plate 2-2 and a top plate 2-1, and the U-shaped bent plate 2-2 is welded to the inner wall of the fuel tank to surround the refueling port 4 therein.

[0040] The specific implementation of the oil return chamber in the above embodiment is given below.

[0041] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown, the oil return chamber 1 is connected between the side wall of the refueling channel 2 and the inner wall of the oil tank, and has an overall structure that is wide at the top and narrow at the bottom. Multiple air holes are provided on the side wall of the oil return chamber 1 and / or the top wall of the oil return chamber 1.

[0042] Preferred solution: the oil return chamber 1 is welded by a bent plate 1-1 and a vertical plate 1-2, the bent plate 1-1 is welded to the inner wall of the oil tank and the side wall of the refueling channel 2, and surrounds the oil return port 5 therein; an oil port is provided on the side wall of the refueling channel 2 wrapped by the oil return chamber 1, so as to facilitate the return oil from the oil return chamber 1 to flow into the refueling channel 2.

[0043] Further solution: a baffle 3 with multiple oil holes is fixedly connected to the refueling channel 2 below the refueling port 4 and the oil return port 5, which can effectively prevent the theft of diesel by directly inserting the oil pipe from the refueling port 4 to avoid economic losses.

[0044] The specific implementation of the fuel filling passage in the above embodiment is given below.

[0045] like Figure 4 As shown, the refueling port 4 is a welding flange, and the oil return port 5 is a welding joint. The refueling port 4 and the oil return port 5 are located on the same outer side wall of the fuel tank, and the refueling port 4 and the oil return port 5 are basically located on the same horizontal line.

[0046] The working process of the above oil channel structure is given below:

[0047] like Figure 1 , Figure 2 , Figure 3 As shown, when a large mining machine uses a quick filling system, diesel enters the fuel tank through the refueling port 4 and reaches the bottom of the fuel tank through the refueling channel 2. The quick filling system has a large flow rate. If the diesel is directly filled from the top of the tank and falls into the bottom of the tank, a large amount of bubbles and oil splashes will be formed, and a large amount of oil and gas will increase the refueling resistance. When the oil channel structure is filled, the diesel flows down along the refueling channel 2 along the inner wall of the diesel tank and reaches the bottom of the tank, which can effectively avoid the formation of bubbles and oil splashes.

[0048] The return oil volume of the large excavator engine is large. The return oil enters the oil tank through the return oil port 5 and reaches the return oil chamber 1, then reaches the refueling channel 2 through the connection, and then reaches the bottom of the oil tank along the channel, which also achieves the purpose of avoiding the generation of bubbles and oil splashing.

[0049] In addition, a baffle 3 is designed in the refueling channel 2, so that the oil pipe cannot reach the bottom of the fuel tank, which can effectively prevent the diesel from being stolen by directly inserting the oil pipe through the refueling port 4.

[0050] The utility model also provides a diesel tank, which is equipped with the above-mentioned oil channel structure for preventing the generation of bubbles and splashes. When refueling using the fast filling system, the diesel passes through the oil channel structure and flows down along the inner wall of the diesel tank to reach the diesel liquid level in the tank, which effectively solves the problem of a large number of bubbles and oil splashing caused by the diesel falling during direct refueling. A baffle is designed inside the refueling channel, and the baffle has a small hole, so that the diesel can flow normally, but it can block the oil pipe from being directly inserted into the bottom of the tank from the external refueling port, which can effectively prevent the theft of diesel.

[0051] The utility model also provides an excavator, which is equipped with the oil channel structure for preventing the generation of bubbles and splashes or the diesel tank.

[0052] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0053] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0054] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. An oil channel structure for preventing the generation of bubbles and splashes, characterized in that: include: A refueling channel is fixed on the inner wall of the fuel tank, and the bottom of the refueling channel extends to the bottom surface of the fuel tank; A refueling port is fixed on the outer wall of the fuel tank and is connected to the refueling channel. The oil enters the fuel tank from the refueling port and flows to the bottom of the fuel tank through the refueling channel. An oil return chamber, fixed on the inner wall of the oil tank and connected with the oil filling passage; The oil return port is fixed on the outer wall of the oil tank and is connected to the oil return cavity. The return oil enters the oil return cavity inside the oil tank through the oil return port and then flows to the bottom of the oil tank through the refueling channel.

2. The oil channel structure for preventing bubbles and splashes according to claim 1, characterized in that: The refueling channel is a straight-cylindrical structure, and a plurality of air holes are provided on the side wall of the refueling channel and / or the top wall of the refueling channel.

3. The oil channel structure for preventing bubbles and splashes according to claim 2, characterized in that: The refueling channel is formed by welding a U-shaped bent plate and a top plate. The U-shaped bent plate is welded to the inner wall of the oil tank to surround the refueling port.

4. The oil channel structure for preventing bubbles and splashes according to claim 1, characterized in that: The oil return chamber is connected between the side wall of the refueling channel and the inner wall of the oil tank, and is generally wide at the top and narrow at the bottom. A plurality of air holes are provided on the side wall of the oil return chamber and / or the top wall of the oil return chamber.

5. The oil channel structure for preventing the generation of bubbles and splashes according to claim 4, characterized in that: The oil return chamber is formed by welding a bent plate and a vertical plate, the bent plate is welded to the inner wall of the oil tank and the side wall of the refueling channel, and surrounds the oil return port therein; An oil port is arranged on the side wall of the oil filling passage surrounded by the oil return chamber, so as to facilitate the return oil to flow into the oil filling passage from the oil return chamber.

6. The oil channel structure for preventing the generation of bubbles and splashes according to claim 1, characterized in that: A baffle plate with a plurality of oil-permeable holes is fixedly connected below the oil filling port and the oil return port in the oil filling passage.

7. The oil channel structure for preventing the generation of bubbles and splashes according to claim 1, characterized in that: The oil filling port and the oil return port are located on the same outer side wall of the oil tank, and the two are basically located on the same horizontal line.

8. The oil channel structure for preventing bubbles and splashes according to claim 1, characterized in that: The oil filling port is a welding flange, and the oil return port is a welding joint.

9. A diesel tank, characterized in that: The invention comprises an oil channel structure for preventing the generation of bubbles and splashes as described in any one of claims 1 to 8.

10. An excavator, characterized in that: It comprises the oil channel structure for preventing the generation of bubbles and splashes as claimed in any one of claims 1 to 8; or, it comprises the diesel tank as claimed in claim 9.

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