Anti-backflow engine oil pipe

Abstract

The utility model relates to the technical field of anti-backflow engine oil pipes, and discloses an anti-backflow engine oil pipe, including an oil pipe, an anti-backflow valve and a filter are installed at one end of the oil pipe, and oil ports are opened at both ends of the anti-backflow valve. The utility model introduces fuel into the anti-backflow valve through an oil port on one side, and pushes the ball valve and the spring to move to one end through the thrust of the fuel introduction. When the fuel stops being introduced, the spring pushes the ball valve, and the ball valve blocks the oil port again to prevent the backflow fuel from re-entering the engine case, thereby having the advantage of anti-backflow. The above-mentioned anti-backflow engine oil pipe device is concise and exquisite, which not only reduces the production cost but also greatly prolongs the service life of the engine.

Description

Technical Field

[0001] The utility model relates to the technical field of engine oil pipes, in particular to an anti-backflow engine oil pipe. Background Art

[0002] The engine oil pipe mainly includes an oil pipe body, and flange rings are connected at both ends of the oil pipe body. When fuel is input, the fuel passes through one end of the oil pipe and directly enters the engine through the oil pipe.

[0003] The Chinese patent with publication number CN204239933U discloses an engine oil pipe assembly, which includes an oil pipe body, one end of which is connected to a sealing joint, a flange plate is arranged on the sealing joint, an annular groove is arranged on the outer peripheral wall of the sealing joint, an arc-shaped notch that matches the annular groove is arranged at one end of the flange plate, the flange plate is detachably sleeved on the annular groove through the arc-shaped notch and can rotate relative to the annular groove, a clamping point is arranged at each end of the arc-shaped notch, the two clamping points are arranged in opposite directions, and the width of the bottom of the annular groove is greater than the thickness of the flange plate. The utility model makes the flange plate detachable and the flange plate can rotate and swing relative to the sealing joint.

[0004] When the engine is turned off, the pressure inside the engine will cause the fuel to flow back into the oil tank. The fuel reflux will increase the operating load of the oil pump, resulting in a shortened service life of the oil pump and reduced performance of the oil pipe. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an anti-backflow engine oil pipe, comprising an oil pipe, an anti-backflow valve is installed at one end of the oil pipe, oil ports are provided at both ends of the anti-backflow valve, one end of the oil port is connected to nut one, the other end of the nut one is connected to flange ring one, the other end of the oil pipe is connected to a filter, the filter comprises a cylinder, a support rod, a filter screen, a cylinder cover, nut three and nut four, oil ports are provided at both ends of the cylinder, a plurality of support rods and filter screens are arranged inside the cylinder, the other end of the support rod is connected to the cylinder cover, the other end of the cylinder cover is connected to nut four, the other end of the nut four is connected to flange ring two, nut three is installed outside the cylinder, and one end of the nut three is movably connected to the oil pipe.

[0007] Furthermore, one end of the filter is connected to a nut four, and the other end of the nut four is connected to a flange ring two.

[0008] Furthermore, one end of the interior of the anti-backflow valve is connected to a spring, and the other end of the spring is connected to a ball valve.

[0009] Furthermore, one end of the ball valve is connected to the oil port of the housing.

[0010] Furthermore, a plurality of support rods and filter screens are installed inside the filter, and one end of the support rod is connected to the cylinder cover.

[0011] Furthermore, the support rod is movably connected to a plurality of filter screens.

[0012] The utility model has the following beneficial effects:

[0013] (1) The utility model provides an anti-backflow valve, which can effectively close when the engine stops working, preventing the fuel from flowing back and maintaining the pressure and lubrication performance of the fuel in the engine.

[0014] (2) The filter provided in the utility model mainly plays the role of filtering impurities and pollutants in the fuel.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 2 This is the right view of the filtering structure of the utility model;

[0019] Figure 3 This is the overall diagram of the filtering structure of the utility model;

[0020] Figure 4 This is a left view of the filter structure of the utility model;

[0021] Figure 5 This is a top view of the overall structure of the utility model;

[0022] Figure 6 It is an overall schematic diagram of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] In the figure: 1. oil pipe; 2. anti-backflow valve; 3. filter; 4. flange ring 1; 5. nut 1; 6. nut 3; 7. barrel cover; 8. nut 4; 9. nut 2; 10. flange ring 2; 11. spring; 12. ball valve; 13. filter; 14. support rod. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1 - Figure 5 As shown, the utility model is an anti-backflow engine oil pipe, comprising an oil pipe 1, an anti-backflow valve 2 is installed at one end of the oil pipe 1, oil ports are provided at both ends of the anti-backflow valve 2, one end of the oil port is connected to a nut 5, the other end of the nut 5 is connected to a flange ring 4, the other end of the oil pipe 1 is connected to a filter 3, the filter 3 comprises a cylinder, a support rod 14, a filter screen 13, a cylinder cover 7, nuts three 6 and nuts four 8, oil ports are provided at both ends of the cylinder, a plurality of support rods 14 and filter screens 13 are arranged inside the cylinder, the other end of the support rod 14 is connected to the cylinder cover 7, the other end of the cylinder cover 7 is connected to a nut four 8, the other end of the nut four 8 is connected to a flange ring 2 10, a nut three 6 is installed outside the cylinder, and one end of the nut three 6 is movably connected to the oil pipe 1.

[0027] One end of the filter 3 is connected to a nut 98, and the other end of the nut 98 is connected to a flange ring 10.

[0028] One end of the interior of the anti-backflow valve 2 is connected to a spring 11 , and the other end of the spring 11 is connected to a ball valve 12 .

[0029] One end of the ball valve 12 is connected to the oil port of the housing.

[0030] A plurality of support rods 14 and a filter screen 13 are installed inside the filter 3 , and one end of the support rod 14 is connected to the cylinder cover 7 .

[0031] The support rod 14 is movably connected to the plurality of filter screens 13 .

[0032] When in use, first movably install the flange ring 2 10 on the fuel tank, and then movably install the other end of the flange ring 2 10 on one end of the filter 3, the other end of the filter 3 is threadedly connected with the oil pipe 1, one end of the oil pipe 1 is threadedly connected to the anti-backflow valve 2, and the other end of the anti-backflow valve 2 is movably installed on the flange ring 1 4. During use, the fuel enters the filter 3 through the flange ring 2 10, and the internal fuel of the filter 3 is filtered layer by layer through the multi-layer filter net. The filtered fuel enters the interior of the anti-backflow valve 2 through the oil pipe 1, and the thrust pushed by the fuel introduction causes the ball valve 12 to open. When the fuel introduction stops, the ball valve 12 closes again to prevent the fuel from flowing back, thereby achieving better practicality.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-backflow engine oil pipe, comprising an oil pipe (1), characterized in that: An anti-backflow valve (2) is installed at one end of the oil pipe (1), and oil ports are provided at both ends of the anti-backflow valve (2). One end of the oil port is connected to a nut (5), and the other end of the nut (5) is connected to a flange ring (4). The other end of the oil pipe (1) is connected to a filter (3); The filter (3) comprises a cylinder, a support rod (14), a filter screen (13), a cylinder cover (7), a nut three (6) and a nut four (8), both ends of the cylinder are provided with oil ports, a plurality of support rods (14) and filter screens (13) are provided inside the cylinder, the other end of the support rod (14) is connected to the cylinder cover (7), the other end of the cylinder cover (7) is connected to a nut four (8), and the other end of the nut four (8) is connected to a flange ring two (10); A nut three (6) is installed outside the cylinder, and one end of the nut three (6) is movably connected to the oil pipe (1).

2. The anti-backflow engine oil pipe according to claim 1, characterized in that: One end of the filter (3) is connected to a nut four (8), and the other end of the nut four (8) is connected to a flange ring two (10).

3. The anti-backflow engine oil pipe according to claim 1, characterized in that: One end of the interior of the anti-backflow valve (2) is connected to a spring (11), and the other end of the spring (11) is connected to a ball valve (12).

4. The anti-backflow engine oil pipe according to claim 3, characterized in that: One end of the ball valve (12) is connected to the oil port of the housing.

5. The anti-backflow engine oil pipe according to claim 1, characterized in that: A plurality of support rods (14) and a filter screen (13) are installed inside the filter (3), and one end of the support rod (14) is connected to the cylinder cover (7).

6. The anti-backflow engine oil pipe according to claim 1, characterized in that: The support rod (14) is movably connected to a plurality of filter screens (13).

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