A universal gasoline engine oil tank with horizontal crankshaft output

Abstract

The present invention discloses a universal gasoline engine oil tank with horizontal crankshaft output, comprising an oil tank body (1) and an oil tank cover (2), wherein a refueling port (3) is vertically arranged on the oil tank body (1), an oil outlet (4) is arranged on the lower end surface of the oil tank body (1), and an oil pipe (5) is arranged on the oil outlet (4), the oil tank body (1) is located in the oil tank cover (2), the refueling port (3) passes through the upper end surface of the oil tank cover (2), a locking mechanism is arranged on the refueling port (3), and the oil tank body (1) is fastened to the oil tank cover (2) through the locking mechanism so that the oil tank cover (2) bears the weight of the oil tank body (1). The present invention has the advantages of ingenious design and simple structure, is easy to assemble, improves assembly efficiency, and effectively prevents the infiltration of snow and rain. At the same time, due to the suspended design of the oil tank, the rise of the fuel temperature in the oil tank is reduced, the evaporation of the fuel is prevented, and fuel is saved.

Description

Technical Field

[0001] The invention relates to a universal gasoline engine with horizontal crankshaft output, in particular to an oil tank of a universal gasoline engine with horizontal crankshaft output. Background Art

[0002] At present, on the existing general purpose engines, the fuel tank and the fuel tank cover are installed together and directly assembled on the engine body through a bracket. The bottom of the fuel tank is in direct contact with the body, and the role of the fuel tank cover is only for decoration and waterproofing. The fuel tank of this structure has the disadvantages of complex structure, difficult assembly and high cost. At the same time, since the bottom of the fuel tank is in direct contact with the box body, the temperature of the fuel in the fuel tank will rise with the rise of the body temperature during operation, which aggravates the evaporation rate of the fuel in the fuel tank and wastes fuel. Summary of the invention

[0003] The purpose of the present invention is to provide a universal gasoline engine oil tank with horizontal crankshaft output which is simple in structure and easy to assemble.

[0004] The objective of the present invention is achieved through such a technical solution: a universal gasoline engine oil tank with horizontal crankshaft output, comprising a tank body and a tank cover, wherein a refueling port is vertically arranged on the tank body, an oil outlet is arranged on the lower end surface of the tank body, an oil pipe is arranged on the oil outlet, the tank body is located inside the tank cover, the refueling port passes through the upper end surface of the tank cover, a locking mechanism is arranged on the refueling port, the tank body is fastened to the tank cover by the locking mechanism so that the tank cover bears the weight of the tank body.

[0005] Wherein, the locking mechanism comprises a thread arranged on the outer wall of the fuel filling port, and a locking nut matching the thread is sleeved on the outer wall of the fuel filling port.

[0006] In order to ensure that the oil tank cover is firmly connected to the machine body, fixed connecting parts are arranged on the right outer wall and the left outer wall of the oil tank cover.

[0007] There are two fixed connecting parts arranged on the right outer wall of the fuel tank cover, and one fixed connecting part arranged on the left outer wall.

[0008] Further description, the fixed connecting member of the right outer wall of the fuel tank cover is a mounting hole A and a mounting hole B arranged on both ends of the side outer wall; the fixed connecting member on the left outer wall is a bolt through hole arranged in the middle of the left outer wall.

[0009] In order to enhance the strength, a connecting rib is provided between the mounting hole A and the mounting hole B.

[0010] In order to facilitate installation and limit the position of the fuel tank, a protrusion A is provided on the upper end surface of the fuel tank body and close to the refueling port, and a groove matching with the protrusion A is provided on the top surface of the fuel tank cover body.

[0011] In order to prevent the infiltration of snow and rain and guide the flow of snow and rain, a waterproof belt is provided on the left outer wall of the fuel tank cover. The waterproof belt is arranged along the left outer wall to form an arch; a side panel integrated with the waterproof belt is vertically provided at the outer end of the waterproof belt.

[0012] In order to facilitate lifting, a limiting boss is arranged in the middle of the waterproof belt, the bolt through hole is arranged in the limiting boss, and a lifting ear is arranged on the limiting boss.

[0013] In order to reduce the overall weight, the wall thickness of the fuel tank outer cover skirt gradually decreases from top to bottom.

[0014] In order to shield the heat transferred from the muffler and prevent the infiltration of snow and rain, a baffle integrated with the fuel tank cover is vertically arranged on the left side of the fuel tank cover, and the baffle and the interior of the fuel tank cover are in a ring-shaped closed shape.

[0015] In order to improve the strength, longitudinal and transverse reinforcement ribs are arranged on the top of the inner surface of the fuel tank cover, and the reinforcement ribs near the bend of the inner surface of the fuel tank cover extend to the inner surface of the skirt of the fuel tank cover.

[0016] In order to ensure reliable connection, a circular annular protrusion is arranged on the inner top surface of the fuel tank outer cover to match the upper surface of the outer neck of the fuel filler port.

[0017] The outer neck of the oil filling port is sunken downward to form an annular groove, and the annular boss is located in the annular groove and cooperates with the annular groove.

[0018] In order to achieve shock absorption and sealing effects, a shock absorbing pad is sleeved on the refueling port, and the shock absorbing pad is located in the annular groove; the lower end surface of the annular boss is pressed against the upper end surface of the shock absorbing pad.

[0019] In order to further limit the position, at least three protrusions B are provided on the inner wall of the annular boss.

[0020] Wherein, the protrusion B is columnar or hemispherical.

[0021] In order to make the lower end surface of the oil tank body suspended in the air, the lower end surface of the oil tank body is recessed in the lower end surface of the oil tank outer cover.

[0022] In order to limit the position of the oil pipe, a plate is arranged on the inner wall of the front end surface of the oil tank outer cover, and the plate and the inner wall of the front end surface form a limiting groove, and the oil pipe is located in the limiting groove.

[0023] In order to facilitate manufacturing, the fuel tank body is blow-molded.

[0024] Due to the adoption of the above technical scheme, the present invention has the advantages of clever design, simple structure and low cost. It is not only convenient to assemble and improves the assembly efficiency, but also effectively prevents the infiltration of snow and rain. At the same time, due to the suspended design of the fuel tank, the increase in the temperature of the fuel in the fuel tank is reduced, the evaporation of the fuel is prevented, and fuel is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings of the present invention are as follows:

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is an inner side view of the fuel tank cover of the present invention;

[0028] Figure 3 A bottom view of the present invention;

[0029] Figure 4 It is a cross-sectional view of the present invention. DETAILED DESCRIPTION

[0030] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and any improvement or substitution based on the basic spirit of the present embodiment still falls within the scope of protection required by the claims of the present invention.

[0031] Example 1: Figure 1 , 2 As shown in Figures 3 and 4, a universal gasoline engine oil tank with horizontal crankshaft output comprises a tank body 1 and a tank cover 2, a refueling port 3 is vertically arranged on the tank body 1, an oil outlet 4 is arranged on the lower end surface of the tank body 1, and an oil pipe 5 is arranged on the oil outlet 4, the tank body 1 is located in the tank cover 2, the refueling port 3 passes through the upper end surface of the tank cover 2, a locking mechanism is arranged on the refueling port 3, the tank body 1 is fastened to the tank cover 2 by the locking mechanism so that the tank cover 2 bears the weight of the tank body 1.

[0032] The locking mechanism comprises a thread 6 arranged on the outer wall of the fuel filler port 3, and a locking nut 7 cooperating with the thread 6 is sleeved on the outer wall of the fuel filler port 3. Of course, the locking mechanism can also be a locking pin or a locking ring.

[0033] In order to ensure that the fuel tank cover is firmly connected to the engine body, fixed connecting parts are provided on the right outer wall and the left outer wall of the fuel tank cover 2.

[0034] There are two fixed connecting parts arranged on the right outer wall of the fuel tank cover 2, and one fixed connecting part arranged on the left outer wall.

[0035] Further description, the fixing connecting member of the right outer wall of the oil tank cover is a mounting hole A21 and a mounting hole B22 arranged at both ends of the side outer wall; the fixing connecting member on the left outer wall is a bolt through hole 25 arranged in the middle of the left outer wall. Through the three-point connection, the oil tank cover 2 is firmly connected to the machine body.

[0036] In order to improve the strength, a connecting rib 23 is provided between the mounting hole A21 and the mounting hole B22.

[0037] In order to limit the position of the fuel tank body 1 , a protrusion A8 is provided on the upper end surface of the fuel tank body 1 and close to the refueling port 3 , and a groove 9 matching with the protrusion A8 is provided on the inner top surface of the fuel tank cover 2 .

[0038] In order to prevent the infiltration of snow and rain and guide the flow of snow and rain, a waterproof belt 17 is provided on the left outer wall of the fuel tank cover 2. The waterproof belt 17 is arranged along the left outer wall to form an arch; a side panel 18 integrated with the waterproof belt 17 is vertically provided at the outer end of the waterproof belt 17.

[0039] In order to facilitate lifting and carrying the whole machine, a limiting boss 19 is provided in the middle of the waterproof belt 17 , the bolt through hole 25 is provided in the limiting boss 19 , and a lifting ear 20 is provided on the limiting boss 19 .

[0040] In order to reduce weight while ensuring strength, the wall thickness of the skirt of the fuel tank cover 2 gradually decreases from top to bottom.

[0041] In the present invention, a baffle 24 is vertically arranged on the left side of the fuel tank cover 2 and is integrated with the fuel tank cover 2. The baffle 24 is annularly closed with the inner periphery of the fuel tank cover 2. The baffle 24 can not only block the intrusion of snow and rain, but also enhance the overall strength of the fuel tank cover, and at the same time, it also plays a role of heat insulation, blocking the heat transferred from the muffler.

[0042] In order to improve the strength of the fuel tank cover 2, longitudinal and transverse reinforcement ribs 10 are provided on the top of the inner surface of the fuel tank cover 2, and the reinforcement ribs 10 near the bend of the inner surface of the fuel tank cover 2 extend to the inner surface of the skirt of the fuel tank cover 2.

[0043] In order to ensure reliable connection, a circular annular boss 12 is provided on the inner top surface of the fuel tank cover 2 to match the upper surface of the outer neck of the fuel filler port 3 .

[0044] The outer neck of the fuel filler port 3 is sunken downward to form an annular groove 11 , and the annular boss 12 is located in the annular groove 11 and cooperates with the annular groove 11 .

[0045] In order to limit, dampen and seal, a damping pad 13 is sleeved on the refueling port 3 , and the damping pad 13 is located in the annular groove 11 ; the lower end surface of the annular boss 12 is pressed against the upper end surface of the damping pad 13 .

[0046] In order to further limit the position, at least three protrusions 14 are arranged on the inner wall of the annular boss 12. The protrusions 14 are columnar or hemispherical.

[0047] In the present invention, the lower end surface of the fuel tank body 1 is concave in the lower end surface of the fuel tank cover 2. This allows the fuel tank body 1 to be suspended, preventing the lower end surface of the fuel tank body 1 from directly contacting the engine body, and the fuel in the fuel tank body 1 will not rise with the increase of the engine body temperature, thereby reducing the evaporation of the fuel and saving the fuel.

[0048] In order to limit the position of the oil pipe and avoid interference between the oil pipe and other moving parts, a plate 15 is provided on the inner wall of the front end surface of the oil tank outer cover 2 . The plate 15 and the inner wall of the front end surface form a limiting groove 16 , and the oil pipe 5 is located in the limiting groove 16 .

[0049] In order to facilitate manufacturing, the fuel tank body 1 is blow-molded.

Claims

1. A universal gasoline engine oil tank with horizontal crankshaft output, comprising an oil tank body (1) and an oil tank cover (2), wherein a refueling port (3) is vertically arranged on the oil tank body (1), an oil outlet (4) is arranged on the lower end surface of the oil tank body (1), and an oil pipe (5) is arranged on the oil outlet (4), wherein: The fuel tank body (1) is located inside the fuel tank cover (2); the fuel filling port (3) passes through the upper end surface of the fuel tank cover (2); a locking mechanism is provided on the fuel filling port (3); the fuel tank body (1) is fastened to the fuel tank cover (2) by the locking mechanism so that the fuel tank cover (2) bears the weight of the fuel tank body (1).

2. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 1, characterized in that: The locking mechanism comprises a thread (6) arranged on the outer wall of the fuel filling port (3), and a locking nut (7) matching the thread (6) is sleeved on the outer wall of the fuel filling port (3).

3. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 2, characterized in that: Fixed connecting parts are provided on the right outer wall and the left outer wall of the oil tank outer cover (2).

4. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 3, characterized in that: There are two fixed connecting parts arranged on the right outer wall of the oil tank outer cover (2), and one fixed connecting part arranged on the left outer wall.

5. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 4, characterized in that: The fixing connection member on the right outer wall of the oil tank cover is a mounting hole A (21) and a mounting hole B (22) arranged at both ends of the right outer wall; the fixing connection member on the left outer wall is a bolt through hole (25) arranged in the middle of the left outer wall.

6. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 5, characterized in that: A connecting rib (23) is provided between the mounting hole A (21) and the mounting hole B (22).

7. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 6, characterized in that: A protrusion A (8) is provided on the upper end surface of the fuel tank body (1) and close to the fuel filling port (3), and a groove (9) cooperating with the protrusion A (8) is provided on the inner top surface of the fuel tank cover (2).

8. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 7, characterized in that: The left outer wall of the fuel tank cover (2) is provided with a waterproof belt (17), and the waterproof belt (17) is arranged along the left outer wall to form an arch; a side plate (18) which is integral with the waterproof belt (17) is vertically provided at the outer end of the waterproof belt (17).

9. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 8, characterized in that: A limiting boss (19) is provided in the middle of the waterproof belt (17), and the bolt through hole (25) is provided in the limiting boss (19).

10. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 9, characterized in that: The wall thickness of the skirt portion of the fuel tank outer cover (2) gradually decreases from top to bottom.

11. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 10, characterized in that: A baffle (24) is vertically arranged on the left side of the fuel tank outer cover (2) and is integral with the fuel tank outer cover (2). The baffle (24) and the interior of the fuel tank outer cover (2) are in a ring-shaped closed shape.

12. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 11, characterized in that: The top of the inner surface of the fuel tank cover (2) is provided with longitudinally and transversely arranged reinforcing ribs (10), and the reinforcing ribs (10) near the bend of the inner surface of the fuel tank cover (2) extend to the inner surface of the skirt of the fuel tank cover (2).

13. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 12, characterized in that: The inner top surface of the fuel tank outer cover (2) is provided with an annular boss (12) that matches the upper surface of the outer neck of the fuel filling port (3).

14. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 13, characterized in that: The outer neck of the refueling port (3) is recessed downward to form an annular groove (11), and the annular boss (12) is located in the annular groove (11) and cooperates with the annular groove (11).

15. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 14, characterized in that: A shock absorbing pad (13) is sleeved on the refueling port (3), and the shock absorbing pad (13) is located in the annular groove (11); the lower end surface of the annular boss (12) is pressed against the upper end surface of the shock absorbing pad (13).

16. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 15, characterized in that: At least three protrusions B (14) are arranged on the inner wall of the annular boss (12).

17. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 16, characterized in that: The protrusion B (14) is columnar or hemispherical.

18. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 17, characterized in that: The lower end surface of the oil tank body (1) is recessed in the lower end surface of the oil tank cover (2).

19. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 18, characterized in that: A plate (15) is provided on the inner wall of the front end surface of the oil tank outer cover (2); the plate (15) and the inner wall of the front end surface form a limiting groove (16); and the oil pipe (5) is located in the limiting groove (16).

20. The universal gasoline engine oil tank with horizontal crankshaft output as claimed in claim 2, 7, 13, 14, 15, 16, 17 or 18, characterized in that: The oil tank body (1) is blow-molded.

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