Fuel tank of engineering machinery

Abstract

The utility model discloses a fuel tank for engineering machinery, which comprises a storage unit, a fuel tank, a fuel supply unit, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover, a fuel tank cover and a fuel tank cover, the device comprises an oil box fixedly connected to one side of the inner wall of an oil tank, a sliding plate is arranged on the inner wall of an oil filling pipe in a sliding mode, a lifting rod is fixedly connected to the bottom of the sliding plate, oil holes are formed in the top and the bottom of the oil box, and the lifting rod penetrates through the two oil holes of the oil box and is fixedly connected with two sealing plugs in a sleeved mode. Emergency standby fuel oil can be stored through the oil box, when the fuel oil in the oil tank is used up, the fuel oil in the oil box is automatically discharged through the oil supply pipe, a small amount of fuel oil can be continuously provided for an engine through the oil supply pipe, and it is guaranteed that the engine can be normally ignited and started.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel tank technical field especially relates to a kind of engineering machinery fuel tank. BACKGROUND

[0002] Mechanical fuel tank is a kind of equipment for storing fuel, usually installed on the machine driven by gasoline engine or diesel engine, its main role is to store fuel, ensure the normal operation of machine, in addition, fuel tank also has the function of heat dissipation, separation bubble in oil, sediment impurities, the design and application field of mechanical fuel tank is very extensive, in the field of transportation, whether it is private car, bus, truck, or aircraft, ship and other means of transport, fuel tank is needed to store fuel to ensure its normal driving and sailing. In the field of engineering machinery, such as excavator, loader, bulldozer and other heavy machinery, efficient, continuous work cannot be separated from the stable power provided by fuel tank.

[0003] When vehicle fuel gauge fails, the owner can not be aware of the remaining fuel in the tank, and part of the owner when driving to remote areas, fuel in the tank can be exhausted, the existing mechanical fuel tank lacks the design of emergency spare fuel tank, and cannot retain spare fuel, which will cause the fuel in the engine oil circuit to be exhausted, and the oil circuit will suck in air, so that the engine lacks sufficient fuel, and then it is difficult to restart the engine, when refueling the fuel tank, the oil pump will deliver air in the oil circuit to the engine, which will reduce the service life of the engine, therefore, an engineering machinery fuel tank is proposed. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide an engineering machinery fuel tank, which is suitable for solving the problem that the existing mechanical fuel tank lacks the design of emergency spare fuel tank, cannot retain spare fuel, when refueling the fuel tank, the oil pump will deliver air in the oil circuit to the engine, thereby shortening the service life of the engine.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: an engineering machinery fuel tank, comprising:

[0008] The storage unit comprises an oil tank and a refueling pipe fixedly communicated at the top of the oil tank, the top end of the refueling pipe is provided with a sealing cover, the bottom of the oil tank is fixedly communicated with a drain pipe, and the drain pipe is sleeved with a valve;

[0009] The oil supply unit comprises an oil box fixedly connected to one side of the inner wall of the oil tank, the inner wall of the refueling pipe is slidably provided with a sliding plate, the bottom of the sliding plate is fixedly connected with a lifting rod, the top and bottom of the oil box are both provided with oil holes, the lifting rod penetrates through the two oil holes of the oil box and is fixedly sleeved with two sealing plugs, the positions of the two sealing plugs correspond to the two oil holes respectively, the bottom end of the lifting rod is fixedly connected with a spring, the bottom of the oil box is fixedly communicated with a secondary oil pipe, one side of the secondary oil pipe is fixedly communicated with an oil supply pipe, the bottom end of the secondary oil pipe is slidably penetrated with a piston rod, and the bottom end of the piston rod is fixedly connected with a float.

[0010] As a preferred scheme of the engineering machinery fuel tank, the bottom of the sliding plate is rotatably connected with a rotating rod, the upper end of the rotating rod penetrates through the sliding plate and is fixedly connected with a knob, and the bottom end of the rotating rod is fixedly connected with a limiting plate.

[0011] As a preferred scheme of the engineering machinery fuel tank, the top of the oil box is fixedly connected with a horn cover, and a plurality of through holes are formed in the side wall of the horn cover.

[0012] As a preferred scheme of the engineering machinery fuel tank, the top of the oil tank is fixedly connected with a straight pipe, the straight pipe penetrates to the bottom of the inner cavity of the oil tank, a connecting cover is threadedly sleeved with the upper end of the straight pipe, the top of the inner wall of the connecting cover is fixedly connected with a liquid level rod, and a float plate is slidably sleeved with the liquid level rod.

[0013] As a preferred scheme of the engineering machinery fuel tank, the bottom end of the liquid level rod is fixedly sleeved with a sampling barrel, and the diameter of the sampling barrel is smaller than the inner diameter of the straight pipe.

[0014] As a preferred scheme of the engineering machinery fuel tank, the inner walls of the oil tank are all fixedly connected with a plurality of wave plates, and the side wall of each wave plate is provided with a through hole.

[0015] The engineering machinery fuel tank has the advantages that the oil box can store emergency reserve fuel, when the fuel in the oil tank is used up, the float and the piston rod automatically descend, the fuel in the oil box is discharged through the oil supply pipe, a small amount of fuel can be continuously supplied to the engine through the oil supply pipe, the oil circuit of the engine can store fuel, the engine can be normally ignited and started, and the damage to the engine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application.

[0017] Figure 1 The whole structure schematic diagram of the fuel tank of the engineering machinery is provided for the present application.

[0018] Figure 2 The internal structure schematic diagram of the fuel tank is provided for the present application.

[0019] Figure 3 The oil supply unit structure schematic diagram is provided for the present application.

[0020] Figure 4 The internal structure schematic diagram of the auxiliary oil pipe is provided for the present application.

[0021] Figure 5 The connection structure schematic diagram of the connecting cover and the liquid level rod is provided for the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] 100, storage unit; 101, fuel tank; 102, oil filling pipe; 103, oil discharge pipe; 104, straight pipe; 105, connecting cover; 106, liquid level rod; 107, float bowl; 108, sampling bucket; 109, wave plate; 200, oil supply unit; 201, oil box; 202, sliding plate; 203, lifting rod; 204, sealing plug; 205, spring; 206, auxiliary oil pipe; 207, oil supply pipe; 208, piston rod; 209, float; 210, rotating rod; 211, knob; 212, limiting plate; 213, horn cover. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail in conjunction with the drawings of the specification.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from the description, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0026] Secondly, the "one embodiment" or "embodiments" referred to herein are intended to encompass a particular feature, structure, or characteristic described herein. Embodiments appearing at different places in this specification do not all refer to the same embodiment nor are separate or alternative embodiments mutually exclusive of other embodiments.

[0027] Thirdly, the utility model is described in detail in combination with the schematic diagram, in the detailed description of the utility model embodiment, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0028] Embodiments

[0029] Reference Figures 1-5 For an embodiment of the utility model, an engineering machinery fuel tank is provided, comprising: a storage unit 100 and a fuel supply unit 200;

[0030] The storage unit 100 comprises a fuel tank 101 and a fuel filler pipe 102 fixedly communicated at the top of the fuel tank 101, the top end of the fuel filler pipe 102 is provided with a sealing cover, the bottom of the fuel tank 101 is fixedly communicated with a fuel drain pipe 103, and the fuel drain pipe 103 is sleeved with a valve;

[0031] The fuel supply unit 200 comprises an oil box 201 fixedly connected to one side of the inner wall of the fuel tank 101, the inner wall of the fuel filler pipe 102 is slidably provided with a sliding plate 202, the bottom of the sliding plate 202 is fixedly connected with a lifting rod 203, the top and bottom of the oil box 201 are both provided with oil holes, the lifting rod 203 passes through the two oil holes of the oil box 201 and is fixedly sleeved with two sealing plugs 204, the positions of the two sealing plugs 204 correspond to the two oil holes respectively, the bottom end of the lifting rod 203 is fixedly connected with a spring 205, the bottom of the oil box 201 is fixedly communicated with a secondary fuel pipe 206, one side of the secondary fuel pipe 206 is fixedly communicated with a fuel supply pipe 207, the bottom end of the secondary fuel pipe 206 is slidably penetrated by a piston rod 208, and the bottom end of the piston rod 208 is fixedly connected with a float 209.

[0032] The oil tank 101 is filled with fuel by inserting the oil gun into the oil filler pipe 102 and pressing the sliding plate 202 downward through the oil gun. When the sliding plate 202 moves downward, the bottom end of the lifting rod 203 is pressed downward to compress the spring 205, and the two sealing plugs 204 are lowered synchronously with the lifting rod 203, so that the two sealing plugs 204 no longer contact the oil holes of the oil box 201. At this time, fuel can enter the oil box 201 through the oil holes to ensure that the oil box 201 is filled with fuel. When the oil tank 101 is filled with fuel, the oil gun is removed and the sealing cover is covered. At this time, the spring 205 pushes the lifting rod 203 upward, so that the two sealing plugs 204 seal the two oil holes of the oil box 201.

[0033] When the oil tank 101 is filled with fuel, the float 209 is lifted by the buoyancy to drive the piston rod 208, so that the height of the piston rod 208 is higher than the height of the oil supply pipe 207, so that the fuel in the oil box 201 cannot be discharged through the oil supply pipe 207. When the engine consumes fuel, the fuel in the oil tank 101 is consumed first. When the fuel in the oil tank 101 decreases to the bottom of the auxiliary oil pipe 206, the fuel in the oil tank 101 is insufficient. When the fuel continues to decrease, the float 209 and the piston rod 208 decrease with the fuel. When the height of the piston rod 208 is lower than the height of the oil supply pipe 207, the fuel in the oil tank 101 is almost exhausted, so that the engine cannot support the car to continue driving. After driving, the engine power consumption is reduced. At this time, the auxiliary oil pipe 206 can discharge the fuel in the oil box 201 through the oil supply pipe 207.

[0034] The lower end of the oil supply pipe 207 is located above the oil discharge pipe 103. The oil supply pipe 207 can continuously supply a small amount of fuel to the oil discharge pipe 103 to ensure that part of the fuel in the oil circuit of the engine is retained to prevent a large amount of air from entering, thereby ensuring that the engine has enough fuel to start. When the oil tank 101 is filled with fuel again, the float 209 drives the piston rod 208 to float and the sealing plug 204 to descend, so as to supplement the fuel in the oil box 201.

[0035] In addition, the bottom of the sliding plate 202 is rotatably connected with a rotating rod 210, the upper end of the rotating rod 210 penetrates through the sliding plate 202 and is fixedly connected with a knob 211, the bottom end of the rotating rod 210 is fixedly connected with a limiting plate 212, the top of the oil box 201 is fixedly connected with a horn cover 213, and a plurality of through holes are formed in the side wall of the horn cover 213.

[0036] When the oil gun is not pressed against the sliding plate 202 downward, the sliding plate 202 is manually pushed downward, so that the sealing plug 204 is no longer in contact with the oil hole of the oil box 201, and when the limiting plate 212 is lowered into the oil tank 101 from the oil filler pipe 102, the knob 211 is rotated by the finger, the top of the knob 211 is provided with an anti-skid groove to facilitate the user to rotate the knob 211, and the knob 211 is rotated to control the angle of the limiting plate 212, and when the limiting plate 212 is rotated into the oil tank 101, the sliding plate 202 is no longer pressed, and at this time the spring 205 pushes the lifting rod 203 upward, so that the limiting plate 212 is tightly attached to the top of the inner cavity of the oil tank 101, so as to fix the position of the sealing plug 204, so that the sealing plug 204 cannot be inserted into the oil hole of the oil box 201, thereby facilitating the user to add the barrel of fuel to the oil tank 101, and when the oil tank 101 is full, the knob 211 is rotated again, so that the limiting plate 212 is in contact with the lifting rod 203, and at this time the limiting plate 212 is no longer in contact with the inner wall of the oil tank 101, and the spring 205 pushes the lifting rod 203 upward, so that the sealing plug 204 seals the oil box 201;

[0037] The horn cover 213 is located at the oil hole at the top of the oil box 201, and when the fuel is added to the oil tank 101, part of the fuel is gathered by the horn cover 213, so that the fuel quickly passes through the oil hole at the top of the oil box 201, and when the height of the oil tank 101 is higher than the bottom of the oil box 201, and the height of the fuel in the oil tank 101 is lower than the height of the oil box 201, so that the oil box 201 will preferentially supplement the fuel, so as to ensure that the height of the fuel in the oil box 201 is higher than the height of the oil tank 101, so that the oil box 201 has a large amount of fuel for the engine to use, and when the sealing plug 204 seals the oil box 201, the fuel remaining in the horn cover 213 is discharged through the through hole.

[0038] Further, the top of the oil tank 101 is fixedly connected with a straight pipe 104, the straight pipe 104 penetrates to the bottom of the inner cavity of the oil tank 101, the upper end of the straight pipe 104 is threadedly sleeved with a connecting cover 105, the top of the inner wall of the connecting cover 105 is fixedly connected with a liquid level rod 106, the liquid level rod 106 is slidably sleeved with a float plate 107, the bottom end of the liquid level rod 106 is fixedly sleeved with a sampling barrel 108, and the diameter of the sampling barrel 108 is smaller than the inner diameter of the straight pipe 104.

[0039] The bottom end of the straight pipe 104 is not in contact with the bottom of the inner cavity of the oil tank 101, and the fuel in the oil tank 101 can enter the straight pipe 104 and drive the float plate 107 to float, so that the fuel in the straight pipe 104 is not violently shaken during the driving of the vehicle, the float plate 107 is in contact with the inner wall of the straight pipe 104, and the fuel in the straight pipe 104 is prevented from splashing everywhere through the float plate 107, and the oil level can be clearly visible on the liquid level rod 106 by using the float plate 107, the liquid level rod 106 is in the shape of an inverted T, the connecting cover 105 can be taken out of the straight pipe 104 by screwing, and the remaining amount of fuel in the oil tank 101 can be known by observing the oil mark on the rod surface of the liquid level rod 106.

[0040] The sampling bucket 108 is located at the bottom of the straight pipe 104, and when the liquid level rod 106 is taken out of the oil tank 101, the fuel at the bottom of the oil tank 101 can be carried by the sampling bucket 108, and the purity and quality of the fuel in the oil tank 101 can be easily judged by the user through the fuel sampled by the sampling bucket 108.

[0041] Further, the inner wall of the oil tank 101 is fixedly connected with a plurality of wave plates 109, and the side wall of each wave plate 109 is provided with a through hole.

[0042] The wave plates 109 can support the inner cavity of the oil tank 101, thereby improving the structural strength of the oil tank 101, and the fuel in the oil tank 101 can be shaken during the starting and braking of the vehicle, and the wave plates 109 can reduce the fluctuation and impact of the fuel in the oil tank 101, thereby reducing the damage caused by the impact to the oil tank 101, and the side wall of each wave plate 109 is provided with a through hole, and part of the fuel flows between the plurality of wave plates 109 through the through hole, so as to prevent the wave plates 109 from being damaged due to excessive impact at the connection between the wave plates 109 and the oil tank 101.

[0043] During use, the oil gun can be inserted into the oil filler pipe 102 by removing the sealing cover on the oil filler pipe 102, and the sliding plate 202 is pressed downward by the oil gun, so that the two sealing plugs 204 are lowered synchronously with the lifting rod 203, at this time the fuel is gathered by the horn cover 213 and enters the oil box 201 through the oil hole, when there is no oil gun, the sliding plate 202 is manually pushed downward and the knob 211 is rotated, so that the limiting plate 212 is tightly attached to the top of the inner cavity of the oil tank 101, so as to fix the position of the sealing plug 204, so that the sealing plug 204 cannot be inserted into the oil hole of the oil box 201, thereby facilitating the user to add the barrel fuel to the oil tank 101 by himself, when the oil tank 101 is full, the knob 211 is rotated again, so that the limiting plate 212 is in contact with the lifting rod 203, at this time the spring 205 pushes the lifting rod 203 upward, so that the two sealing plugs 204 seal the oil box 201;

[0044] When the oil tank 101 is filled with fuel, the sealing cover is closed, the float 209 drives the piston rod 208 to float by buoyancy, so that the fuel in the oil box 201 cannot be discharged through the oil supply pipe 207, when the fuel in the oil tank 101 decreases to the bottom of the auxiliary oil pipe 206, the float 209 and the piston rod 208 decrease with the fuel, when the height of the piston rod 208 is lower than the height of the oil supply pipe 207, the auxiliary oil pipe 206 can discharge the fuel in the oil box 201 through the oil supply pipe 207, the oil supply pipe 207 can continuously provide a small amount of fuel for the oil discharge pipe 103, thereby ensuring that the engine has enough fuel to start, the connecting cover 105 can be taken out from the straight pipe 104 through the spiral connecting cover 105, the remaining amount of fuel in the oil tank 101 can be known by observing the oil mark on the rod surface of the liquid level rod 106, the fuel sampled by the sampling bucket 108 can facilitate the user to judge the purity and quality of the fuel in the oil tank 101.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A fuel tank for construction machinery, characterized in that: include: The storage unit (100) comprises a fuel tank (101) and a filling pipe (102) fixedly connected to the top of the fuel tank (101), a sealing cover being provided at the top of the filling pipe (102), and a drain pipe (103) being fixedly connected to the bottom of the fuel tank (101), and a valve being sleeved on the drain pipe (103); The oil supply unit (200) comprises an oil box (201) fixedly connected to one side of the inner wall of the oil tank (101), a sliding plate (202) is slidably provided on the inner wall of the oil filling pipe (102), a lifting rod (203) is fixedly connected to the bottom of the sliding plate (202), oil holes are opened at the top and bottom of the oil box (201), the lifting rod (203) passes through the two oil holes of the oil box (201) and is fixedly sleeved with two sealing plugs (204), the two The positions of the sealing plugs (204) correspond to the two oil holes respectively. The bottom end of the lifting rod (203) is fixedly connected to a spring (205). The bottom of the oil box (201) is fixedly connected to a secondary oil pipe (206). One side of the secondary oil pipe (206) is fixedly connected to an oil supply pipe (207). The bottom end of the secondary oil pipe (206) is slidably penetrated by a piston rod (208). The bottom end of the piston rod (208) is fixedly connected to a floating block (209).

2. The engineering machinery fuel tank according to claim 1, characterized in that: The bottom of the sliding plate (202) is rotatably connected to a rotating rod (210), the upper end of the rotating rod (210) passes through the sliding plate (202) and is fixedly connected to a knob (211), and the bottom end of the rotating rod (210) is fixedly connected to a limiting plate (212).

3. The engineering machinery fuel tank according to claim 1, characterized in that: A trumpet cover (213) is fixedly connected to the top of the oil box (201), and a plurality of through holes are formed on the side wall of the trumpet cover (213).

4. The engineering machinery fuel tank according to claim 3, characterized in that: A straight pipe (104) is fixedly connected to the top of the oil tank (101), and the straight pipe (104) penetrates to the bottom of the inner cavity of the oil tank (101). A connecting cover (105) is threadedly sleeved on the upper end of the straight pipe (104), and a liquid level rod (106) is fixedly connected to the top of the inner wall of the connecting cover (105), and a floating plate (107) is slidably sleeved on the liquid level rod (106).

5. The engineering machinery fuel tank according to claim 4, characterized in that: A sampling barrel (108) is fixedly sleeved on the bottom end of the liquid level rod (106), and the diameter of the sampling barrel (108) is smaller than the inner diameter of the straight tube (104).

6. The engineering machinery fuel tank according to claim 1, characterized in that: The inner wall of the oil tank (101) is fixedly connected with a plurality of corrugated plates (109), and the side wall of each corrugated plate (109) is provided with a through hole.

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