Zero-turning lawn vehicle fuel oil supply system with recovery function

Abstract

The zero-turning lawn vehicle fuel oil supply system with the recovery function comprises two oil tanks and an engine, the tops of the two oil tanks are both connected with air return pipes, a first tee joint is arranged between the opposite ends of the two air return pipes, and a second tee joint is arranged between the opposite ends of the two air return pipes. A carburetor connecting pipe connected with an engine is arranged at the top of the first tee joint, connecting discs are arranged at the ends, connected with an oil tank, of the two air return pipes correspondingly, air bags are arranged between the interiors of the two connecting discs and one ends of the air return pipes correspondingly, and sealing mechanisms are arranged on the front sides of the two connecting discs correspondingly. According to the zero-turning lawn vehicle fuel oil supply system with the recovery function, the gas return pipe and the carburetor connecting pipe are arranged between the oil tank and the engine, gas generated in the oil tank can be exhausted into a carburetor of the engine, oil and gas are mixed through the carburetor, vacuum generated by the engine is effectively utilized, and the fuel oil supply efficiency is improved. And the recovery and reutilization of the gas are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a fuel supply system for a zero-turn lawn mower with a recycling function. Background Art

[0002] The core function of the fuel supply system is to supply sufficient fuel to the engine to ensure that the lawn mower can operate stably under any working conditions. An efficient and reliable fuel supply system is crucial to the stable operation of the lawn mower. It not only needs to provide enough fuel to meet the power requirements of the engine, but also needs to ensure the quality of the fuel and accurately control the fuel supply in different environments. With the development of technology, future fuel supply systems will pay more attention to improving fuel efficiency and reducing environmental pollution to adapt to increasingly stringent environmental protection standards.

[0003] When using a lawn mower, gases will be generated in the fuel tank. These gases will not only pollute the environment, but may also affect the normal operation of the lawn mower. Therefore, how to effectively prevent these gases from being discharged has become an urgent problem to be solved; although high-pressure fuel tanks can solve this problem to a certain extent, their high cost and complex maintenance requirements make many users discouraged. Therefore, how to reduce gas emissions while using ordinary fuel tanks has become a topic worthy of discussion. Therefore, a zero-turn lawn mower fuel supply system with a recovery function is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a zero-turn lawn vehicle fuel supply system with a recovery function, which has the advantages of preventing gas discharge and the like, and solves the problem of reducing gas emissions while using an ordinary fuel tank.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a zero-turn lawn car fuel supply system with a recovery function, comprising two fuel tanks and an engine, the tops of the two fuel tanks are connected to return pipes, a first tee is arranged between opposite ends of the two return pipes, a carburetor connecting pipe connected to the engine is arranged on the top of the first tee, the ends of the two return pipes connected to the fuel tanks are provided with connecting plates, air bags are arranged between the insides of the two connecting plates and one end of the return pipes, and sealing mechanisms are arranged on the front sides of the two connecting plates;

[0008] The sealing mechanism includes a mounting column fixedly installed on the front side wall of the connecting plate, a rectangular frame fixedly installed on one end of the mounting column, a bidirectional threaded rod rotatably installed inside the rectangular frame, a shift block fixedly installed in the middle of the bidirectional threaded rod, sleeves threadedly installed on both ends of the outer surface of the bidirectional threaded rod, a movable plate fixedly installed on the opposite ends of the two sleeves, a push rod fixedly installed on the opposite sides of the two movable plates, a piston plate fixedly installed on the opposite ends of the two push rods, a cylinder is provided on the outer surfaces of the two piston plates, and an air collecting box is fixedly installed between the two cylinders.

[0009] Furthermore, the interiors of the two connection plates are threadedly connected with bolts connected to the oil tank and the engine, and openings are provided on the front side wall and the top of the rectangular frame.

[0010] Furthermore, two support blocks are fixedly mounted on the inner bottom wall of the rectangular frame, and both ends of the bidirectional threaded rod penetrate the support blocks and are rotatably connected thereto.

[0011] Furthermore, both ends of the inner bottom wall of the rectangular frame are provided with sliding grooves, and sliding rods are fixedly installed at the bottoms of the two movable plates, and the two sliding rods are slidably connected to the sliding grooves.

[0012] Furthermore, the two cylinders are fixedly mounted on the rear inner wall of the rectangular frame, and the two piston plates are slidably connected to the inner wall of the rectangular frame.

[0013] Furthermore, the two cylinders are both connected to an air collecting box, the air collecting box penetrates the rear inner wall and the connecting plate of the rectangular frame and is connected to the airbag, and a sealing plug is provided on the top of the air collecting box.

[0014] Beneficial Effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The zero-turn lawn car fuel supply system with recycling function can discharge the gas generated in the fuel tank into the carburetor of the engine by arranging a return pipe and a carburetor connecting pipe between the fuel tank and the engine, and mix the oil and gas through the carburetor, thereby avoiding direct discharge of gas to pollute the environment, effectively utilizing the vacuum generated by the engine itself, realizing the recovery and reuse of gas, and achieving the effect of energy saving and environmental protection.

[0017] 2. The fuel supply system of the zero-turn lawn vehicle with a recovery function is equipped with an airbag. Under the action of the sealing mechanism, the gas can be squeezed into the airbag. When the airbag expands, the gap between the return air pipe and the connecting plate is filled, thereby improving the tightness of the return air pipe connection and effectively preventing gas leakage, thereby achieving a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the connecting plate and the air return pipe of the utility model;

[0020] Figure 3 For this utility model Figure 2 Cross-sectional view of the middle part from above.

[0021] In the figure: 1. fuel tank; 2. engine; 3. connecting plate; 4. return air pipe; 5. sealing mechanism; 501. mounting column; 502. rectangular frame; 503. bidirectional threaded rod; 504. shift block; 505. sleeve; 506. moving plate; 507. push rod; 508. piston plate; 509. cylinder; 510. air collecting box; 6. air bag; 7. first three-way; 8. carburetor connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 A zero-turn lawn vehicle fuel supply system with a recovery function in this embodiment includes two fuel tanks 1 and an engine 2. The tops of the two fuel tanks 1 are connected to return air pipes 4. A first tee 7 is arranged between the opposite ends of the two return air pipes 4. A carburetor connecting pipe 8 connected to the engine 2 is arranged on the top of the first tee 7. The ends of the two return air pipes 4 connected to the fuel tanks 1 are provided with connecting plates 3. Air bags 6 are arranged between the interiors of the two connecting plates 3 and one end of the return air pipe 4. Sealing mechanisms 5 are arranged on the front sides of the two connecting plates 3.

[0024] The two connecting plates 3 and the return air pipe 4 are both configured as an integrated structure. The two ends of the return air pipe 4 respectively penetrate the connecting plates 3 and can be connected to the fuel tank 1, and air bags 6 are provided between the two ends of the outer surface of the return air pipe 4 and the inside of the connecting plate 3. Under the action of the return air pipe 4, the gas in the fuel tank 1 can be avoided from being directly discharged. Instead, the gas generated in the fuel tank 1 is guided to the carburetor of the engine 2 through the return air pipe 4 and the carburetor connecting pipe 8 for recycling, so that the effect of reducing gas emissions can be achieved while using an ordinary fuel tank 1, thereby achieving the purpose of environmental protection. The bottoms of the two fuel tanks 1 are both provided with oil suction pipes, and the engine 2 is provided with a central pipe. The central pipe and the two oil suction pipes are connected together by a second tee, so that the gasoline in the fuel tank 1 can be transported to the engine 2.

[0025] The sealing mechanism 5 includes a mounting column 501 fixedly mounted on the front side wall of the connecting plate 3, a rectangular frame 502 being fixedly mounted on one end of the mounting column 501, a bidirectional threaded rod 503 being rotatably mounted inside the rectangular frame 502, a shift block 504 being fixedly mounted on the middle part of the bidirectional threaded rod 503, sleeves 505 being threadedly mounted on both ends of the outer surface of the bidirectional threaded rod 503, movable plates 506 being fixedly mounted on the opposite ends of the two sleeves 505, push rods 507 being fixedly mounted on the opposite sides of the two movable plates 506, piston plates 508 being fixedly mounted on the opposite ends of the two push rods 507, cylinders 509 being provided on the outer surfaces of the two piston plates 508, and an air collecting box 510 being fixedly mounted between the two cylinders 509.

[0026] Slide grooves are provided at both ends of the inner bottom wall of the rectangular frame 502, and slide rods are fixedly installed at the bottom of the two movable plates 506. Under the action of the slide grooves and the slide rods, the stability of the movable plates 506 during movement is improved. Two support blocks are fixedly installed on the inner bottom wall of the rectangular frame 502. Under the action of the support blocks, the bidirectional threaded rod 503 is conveniently supported.

[0027] A sealing plug is provided on the top of the air collecting box 510, and openings are provided on the front side wall and the top of the rectangular frame 502. The opening of the front side wall is for facilitating the rotation of the dial block 504, and the opening of the top is for opening or closing the sealing plug.

[0028] Both cylinders 509 are connected to the air collecting box 510, and the air collecting box 510 passes through the rear inner wall of the rectangular frame 502 and the connecting disk 3 and is connected to the air bag 6. Under the action of the bidirectional threaded rod 503, the sleeve 505, the movable plate 506 and the push rod 507, by rotating the dial block 504, the piston plate 508 can be driven to move in the cylinder 509, thereby squeezing the gas into the interior of the air bag 6, causing the air bag 6 to expand and fill the gap between the connecting disk 3 and the return air pipe 4, thereby improving the sealing during the connection. After the filling is completed, the sealing plug is closed to seal the air collecting box 510.

[0029] When implementing, follow these steps:

[0030] 1) First open the sealing plug on the gas collecting box 510 and rotate the shifting block 504. The shifting block 504 drives the bidirectional threaded rod 503 to rotate, and the bidirectional threaded rod 503 drives the sleeves 505 at both ends to move relative to each other.

[0031] 2) The two sleeves 505 drive the two push rods 507 to move relative to each other, and the two push rods 507 drive the two piston plates 508 to move inside the cylinder 509, and squeeze the gas generated in the cylinder 509 into the inside of the airbag 6 through the gas collecting box 510, so that the airbag 6 expands and fills the gap between the return air pipe 4 and the connecting plate 3;

[0032] 3) Finally, when the lawn mower is running, the gas in the fuel tank 1 is guided to the carburetor of the engine 2 through the return pipe 4 and the carburetor connecting pipe. When the engine 2 is working, negative pressure is generated during the intake process. The negative pressure is used by the engine 2 to mix the guided fuel gas with the air to form a combustible mixture.

[0033] To sum up, the zero-turn lawn buggy fuel supply system with recovery function can discharge the gas generated in the fuel tank 1 into the carburetor of the engine 2 by arranging the return pipe 4 and the carburetor connecting pipe 8 between the fuel tank 1 and the engine 2, and mix the oil and gas in the carburetor of the engine 2, thereby avoiding the pollution to the environment caused by direct discharge of gas, effectively utilizing the vacuum generated by the engine 2 itself, realizing the recovery and reuse of gas, and achieving the effect of energy saving and environmental protection.

[0034] Furthermore, by providing the airbag 6, the gas can be squeezed into the interior of the airbag 6 under the action of the sealing mechanism 5. When the airbag 6 expands, the gap between the return air pipe 4 and the connecting plate 3 is filled, thereby improving the tightness of the return air pipe 4 when connected, effectively preventing gas leakage, and achieving a better sealing effect.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A zero-turn lawn vehicle fuel supply system with a recycling function, comprising two fuel tanks (1) and an engine (2), characterized in that: The tops of the two oil tanks (1) are connected to a return air pipe (4), a first tee (7) is arranged between opposite ends of the two return air pipes (4), a carburetor connecting pipe (8) connected to the engine (2) is arranged on the top of the first tee (7), a connecting plate (3) is arranged at one end of the two return air pipes (4) connected to the oil tank (1), an air bag (6) is arranged between the inside of the two connecting plates (3) and one end of the return air pipe (4), and a sealing mechanism (5) is arranged on the front side of the two connecting plates (3); The sealing mechanism (5) comprises a mounting column (501) fixedly mounted on the front side wall of the connecting plate (3); a rectangular frame (502) is fixedly mounted on one end of the mounting column (501); a bidirectional threaded rod (503) is rotatably mounted inside the rectangular frame (502); a shifting block (504) is fixedly mounted in the middle of the bidirectional threaded rod (503); sleeves (505) are threadedly mounted on both ends of the outer surface of the bidirectional threaded rod (503); a movable plate (506) is fixedly mounted on the opposite ends of the two sleeves (505); a push rod (507) is fixedly mounted on the opposite sides of the two movable plates (506); a piston plate (508) is fixedly mounted on the opposite ends of the two push rods (507); a cylinder (509) is provided on the outer surfaces of the two piston plates (508); and a gas collecting box (510) is fixedly mounted between the two cylinders (509).

2. A zero-turn lawn vehicle fuel supply system with a recycling function according to claim 1, characterized in that: The front side wall and the top of the rectangular frame (502) are both provided with openings.

3. A zero-turn lawn vehicle fuel supply system with a recycling function according to claim 1, characterized in that: Two support blocks are fixedly mounted on the inner bottom wall of the rectangular frame (502), and both ends of the bidirectional threaded rod (503) penetrate the support blocks and are rotatably connected thereto.

4. A zero-turn lawn vehicle fuel supply system with a recycling function according to claim 1, characterized in that: Slide grooves are provided at both ends of the inner bottom wall of the rectangular frame (502), and slide bars are fixedly installed at the bottoms of the two movable plates (506), and the two slide bars are slidably connected to the slide grooves.

5. A zero-turn lawn vehicle fuel supply system with a recycling function according to claim 1, characterized in that: The two cylinders (509) are both fixedly mounted on the rear inner wall of the rectangular frame (502), and the two piston plates (508) are both slidably connected to the inner wall of the rectangular frame (502).

6. A zero-turn lawn vehicle fuel supply system with a recycling function according to claim 1, characterized in that: The two cylinders (509) are both connected to an air collecting box (510), the air collecting box (510) penetrates the rear inner wall of the rectangular frame (502) and the connecting plate (3) and is connected to the air bag (6), and a sealing plug is provided on the top of the air collecting box (510).

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