Engine fuel pipeline

Abstract

The utility model belongs to the technical field of engine fuel oil pipeline fixing, and discloses an engine fuel oil pipeline which comprises a pipe body, a straight-through type one-way valve is fixedly arranged at one end of the pipe body, and a U-shaped frame is arranged on the outer side of the pipe body in a sleeved mode. The straight-through type one-way valve comprises a pipe body and a U-shaped frame, the U-shaped frame comprises a middle plate, a middle plate, side plates, an inner straight plate, an inner inclined plate and an arc-shaped clamping sleeve, the middle plate abuts against the surface of the pipe body, the side plates are fixedly arranged at the two ends of the middle plate, and the inner straight plate is fixedly arranged on the inner walls of the side plates. When an engine is started again, the pressure of a fuel oil system can reach the ignition pressure within less time, the engine is started more easily, the pipe body is positioned through the U-shaped frame and can be buffered and damped in the radial direction and the axial direction, the pipe body is not prone to being damaged when impacted through the elastic fixing structure, and the service life of the pipe body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixing an engine fuel pipeline, in particular to an engine fuel pipeline. Background Art

[0002] The main function of the engine fuel system is to ensure the fuel flow required by the engine under various working states and conditions, and to realize the timely supply of fuel. The engine fuel system is mainly composed of the fuel tank, fuel pump, fuel filter and other main components. The fuel system undertakes the transportation of fuel and ensures that the fuel can smoothly enter the engine to make it work normally. The fuel is sucked out by the fuel pump, filtered by the fuel filter, and reaches the fuel rail from the fuel pipeline. The fuel rail distributes the fuel to each injector. The fuel is sprayed by the injector, mixed with the air at the intake valve, and finally enters the cylinder through the intake valve.

[0003] In the prior art, when the fuel system stops working, the fuel in the existing engine fuel pipeline is prone to reverse flow, which will cause the oil pressure to drop rapidly, making it difficult to start the engine again;

[0004] At the same time, the existing engine fuel pipeline is generally fixed under the chassis by buckles. Although this is firmly fixed, it loses the corresponding buffering, shock resistance and impact resistance. When the fuel pipeline is scratched, the rigid fixed structure can easily cause the pipeline to rupture and leak oil. Wrapping a buffer layer on the pipeline is a solution, but this will lead to increased costs. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an engine fuel pipeline, which has the advantages of positioning the fuel pipeline and limiting the fuel pipe body through a U-shaped frame, thereby achieving buffering, shock absorption and elastic fixation.

[0006] To achieve the above object, the utility model provides the following technical solution: an engine fuel pipeline, comprising a pipe body, one end of which is fixedly provided with a straight-through check valve, and the outer side of the pipe body is sleeved with a U-shaped frame;

[0007] The U-shaped frame includes a middle plate, a middle plate, a side plate, an inner straight plate, an inner inclined plate and an arc-shaped jacket, and the middle plate is pressed against the surface of the tube body, the side plates are fixedly arranged at both ends of the middle plate, the inner straight plate is fixedly arranged on the inner wall of the side plate, the other end of the inner straight plate is fixedly arranged with an inner inclined plate, the top end of the inner inclined plate is fixedly arranged with an arc-shaped jacket, and the arc-shaped jacket is pressed against the outside of the tube body.

[0008] Preferably, a fixing bolt is provided through the top of the U-shaped frame, a first nut is spirally provided on the outer side of the fixing bolt, and the first nut is engaged with the U-shaped frame.

[0009] Preferably, a pressure sensor is fixedly mounted on the bottom end of the first nut and the inner wall of the side plate, and the pressure sensor is configured as an ELAF sensor.

[0010] Preferably, an elastic rope is sleeved on the outer side of the fixing bolt, a fixing sleeve is fixedly provided on the other end of the elastic rope, and the fixing sleeve is sleeved on the tube body.

[0011] Preferably, a bolt hole is opened inside the side plate, a positioning pin passes through the bolt hole, a second nut is spirally arranged on the other end of the positioning pin, and the second nut is tightly arranged on the surface of the other side plate.

[0012] Preferably, the outer side of the positioning pin is provided with a mounting sleeve, a support rod is penetrated inside the mounting sleeve, the top end of the support rod is provided with a limiting sleeve, the top end of the limiting sleeve is fixedly provided with a support plate, and the support plate is tightly arranged on the bottom end of the tube body.

[0013] Preferably, a third nut is spirally provided on the outer side of the support rod, and the third nut is tightly arranged on the bottom end of the mounting sleeve plate, a sliding plate is tightly arranged on the top end of the mounting sleeve plate, the sliding plate is sleeved with the support rod, a spring is arranged on the top end support of the sliding plate, the spring is sleeved on the outer side of the support rod, and the other end of the spring is tightly arranged on the bottom end of the limiting sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model adopts the U-shaped frame and the arc-shaped jacket structure design. After the straight-through check valve is installed on the pipe body, when the engine is started again, the pressure of the fuel system can take less time to reach the ignition pressure, and it becomes easier to start the engine. The pipe body is positioned by the U-shaped frame, and radial and axial buffering and shock absorption can be performed on the pipe body. The elastic fixing structure makes the pipe body not easily damaged when impacted, thereby extending the service life of the pipe body.

[0016] 2. The utility model improves the limiting effect of the tube body through the detachable structural design of the support plate structure, thereby strengthening the stability of the support for the tube body and preventing the structure below the tube body from falling off easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the U-shaped frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the support plate of the utility model;

[0020] Figure 4It is a structural schematic diagram of the support rod of the utility model.

[0021] In the figure: 1. pipe body; 2. straight-through check valve;

[0022] 3. U-shaped frame; 31. Middle plate; 32. Side plate; 33. Inner straight plate; 34. Inner inclined plate; 35. Arc-shaped jacket;

[0023] 4. First nut; 5. Fixing bolt; 6. Pressure sensor; 7. Bolt hole; 8. Elastic rope; 9. Fixing sleeve; 10. Positioning pin; 11. Second nut; 12. Support plate; 13. Mounting sleeve; 14. Support rod; 15. Third nut; 16. Sliding plate; 17. Spring; 18. Limiting sleeve. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 4 As shown, the utility model provides an engine fuel pipeline, comprising a pipe body 1, one end of which is fixedly provided with a straight-through check valve 2, and the outer side of the pipe body 1 is sleeved with a U-shaped frame 3;

[0026] The U-shaped frame 3 includes a middle plate 31, a middle plate 31, a side plate 32, an inner straight plate 33, an inner inclined plate 34 and an arc-shaped jacket 35, and the middle plate 31 is pressed against the surface of the tube body 1, the side plates 32 are fixedly arranged at both ends of the middle plate 31, the inner straight plate 33 is fixedly arranged on the inner wall of the side plate 32, the other end of the inner straight plate 33 is fixedly provided with an inner inclined plate 34, the top end of the inner inclined plate 34 is fixedly provided with an arc-shaped jacket 35, and the arc-shaped jacket 35 is pressed against the outside of the tube body 1, through the outer U-shaped frame 3 and the inner arc-shaped jacket 35 structure, the tube body 1 can be stably clamped to maintain the positioning effect and reduce the shaking of the tube body 1.

[0027] Specifically, a fixing bolt 5 is provided through the top of the U-shaped frame 3, a first nut 4 is spirally provided on the outer side of the fixing bolt 5, and the first nut 4 is engaged with the U-shaped frame 3. The fixing bolt 5 is used in conjunction with the first nut 4 to fix the U-shaped frame 3 and at the same time, it is installed on the vehicle body.

[0028] Furthermore, a pressure sensor 6 is fixedly provided on the bottom end of the first nut 4 and the inner wall of the side plate 32 . The pressure sensor 6 is configured as an ELAF sensor. The use of the pressure sensor 6 can improve the pressure monitoring of the tube body 1 .

[0029] Furthermore, an elastic rope 8 is sleeved on the outer side of the fixing bolt 5, and a fixing sleeve 9 is fixedly provided on the other end of the elastic rope 8, and the fixing sleeve 9 is sleeved with the tube body 1. The elastic rope 8 is tightened and connected to the tube body 1 through the fixing sleeve 9, thereby achieving an elastic supporting effect.

[0030] It is worth mentioning that a bolt hole 7 is opened inside the side plate 32, and a positioning pin 10 passes through the inside of the bolt hole 7. A second nut 11 is spirally arranged on the other end of the positioning pin 10, and the second nut 11 is tightly arranged on the surface of the other side side plate 32. The positioning pin 10 is used to improve the stable limiting effect of the U-shaped frame 3.

[0031] It is worth noting that the outer side of the locating pin 10 is sleeved with a mounting sleeve 13, a support rod 14 is penetrated inside the mounting sleeve 13, a limiting sleeve 18 is sleeved on the top end of the support rod 14, a support plate 12 is fixedly provided on the top end of the limiting sleeve 18, and the support plate 12 is tightly arranged on the bottom end of the tube body 1. The support plate 12 is assembled on the outer side of the tube body 1 through the limiting sleeve 18 and the support rod 14, so as to achieve a stable supporting effect.

[0032] It is worth mentioning that a third nut 15 is spirally arranged on the outer side of the support rod 14, and the third nut 15 is tightly arranged on the bottom end of the flat plate of the mounting sleeve 13, and a sliding plate 16 is tightly arranged on the top end of the flat plate of the mounting sleeve 13. The sliding plate 16 is sleeved with the support rod 14, and a spring 17 is arranged on the top support of the sliding plate 16. The spring 17 is sleeved on the outer side of the support rod 14, and the other end of the spring 17 is tightly pressed against the bottom end of the limiting sleeve 18. The third nut 15 is used to position the support rod 14, and the spring 17 sleeved on the outer side supports the elastic buffer.

[0033] Among them, the pipe body 1 and the straight-through one-way valve 2 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0034] Principle effect.

[0035] The staff connects the straight-through one-way valve 2 to the bottom of the pipe body 1, passes the fixing bolt 5 through the U-shaped frame 3 and the first nut 4, connects and fixes them together for positioning, and the U-shaped frame 3 is clamped and assembled to the outside of the pipe body 1 through the middle plate 31, the side plate 32, the inner straight plate 33, the inner inclined plate 34 and the arc-shaped jacket 35 to improve the stable clamping of the pipe body 1, and cooperates with the elastic rope 8 to tighten the connecting fixing sleeve 9, and tighten the pipe body 1 to maintain the positioning effect, extend the clamping and buffering effect of the U-shaped frame 3, and further reduce the buffering effect when the oil circuit impact is too large. At the same time, the internally arranged pressure sensor 6 can monitor the pressure at any time, use the positioning pin 10 to pass through the U-shaped frame 3, use the second nut 11 to clamp and position, and connect the vehicle computer. When it is triggered, it can remind the user that the pipe body 1 has been subjected to external impact and real-time monitoring.

[0036] Bolt holes 7 are provided at the bottom of the two side plates 32. After the tube body 1 is clamped between the two arc-shaped jackets 35, the positioning pins 10 can be inserted into the bolt holes 7 to prevent the tube body 1 from falling off, and this will not affect the buffering effect of the two arc-shaped jackets 35.

[0037] When installing the positioning pin 10, pass the positioning pin 10 through the installation sleeve 13, screw the third nut 15 to fix the support rod 14 between the flat plate holes of the installation sleeve 13, and cooperate with the elastic support of the spring 17 to push the top limit sleeve 18 and the support plate 12 to the bottom of the tube body 1 inside the U-shaped frame 3 to further enhance the clamping and stabilizing effect.

[0038] 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.

[0039] 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. An engine fuel pipeline, comprising a pipe body (1), characterized in that: A straight-through one-way valve (2) is fixedly arranged at one end of the tube body (1), and a U-shaped frame (3) is sleeved on the outer side of the tube body (1); The U-shaped frame (3) comprises a middle plate (31), a middle plate (31), a side plate (32), an inner straight plate (33), an inner inclined plate (34) and an arc-shaped jacket (35), wherein the middle plate (31) is pressed against the surface of the tube body (1), the side plates (32) are fixedly arranged at both ends of the middle plate (31), the inner straight plate (33) is fixedly arranged on the inner wall of the side plate (32), the inner inclined plate (34) is fixedly arranged at the other end of the inner straight plate (33), the top end of the inner inclined plate (34) is fixedly arranged with an arc-shaped jacket (35), and the arc-shaped jacket (35) is pressed against the outer side of the tube body (1).

2. An engine fuel pipeline according to claim 1, characterized in that: A fixing bolt (5) is provided through the top of the U-shaped frame (3), a first nut (4) is spirally provided on the outer side of the fixing bolt (5), and the first nut (4) is engaged with the U-shaped frame (3).

3. An engine fuel pipeline according to claim 2, characterized in that: A pressure sensor (6) is fixedly mounted on the bottom end of the first nut (4) and the inner wall of the side plate (32), and the pressure sensor (6) is configured as an ELAF sensor.

4. The engine fuel pipeline according to claim 2, characterized in that: An elastic rope (8) is sleeved on the outer side of the fixing bolt (5), a fixing sleeve (9) is fixedly provided on the other end of the elastic rope (8), and the fixing sleeve (9) is sleeved on the tube body (1).

5. The engine fuel pipeline according to claim 1, characterized in that: A bolt hole (7) is provided inside the side plate (32), a positioning pin (10) passes through the inside of the bolt hole (7), a second nut (11) is spirally provided at the other end of the positioning pin (10), and the second nut (11) is tightly arranged on the surface of the other side plate (32).

6. The engine fuel pipeline according to claim 5, characterized in that: The outer side of the positioning pin (10) is sleeved with a mounting sleeve (13), the interior of the mounting sleeve (13) is penetrated by a support rod (14), the top end of the support rod (14) is sleeved with a limiting sleeve (18), the top end of the limiting sleeve (18) is fixedly provided with a support plate (12), and the support plate (12) is tightly arranged on the bottom end of the tube body (1).

7. An engine fuel pipeline according to claim 6, characterized in that: The outer side of the support rod (14) is spirally provided with a third nut (15), and the third nut (15) is tightly arranged on the bottom end of the flat plate of the mounting sleeve (13), and the top end of the flat plate of the mounting sleeve (13) is tightly arranged with a sliding plate (16), and the sliding plate (16) is sleeved with the support rod (14), and the top end support of the sliding plate (16) is provided with a spring (17), and the spring (17) is sleeved on the outer side of the support rod (14), and the other end of the spring (17) is tightly arranged on the bottom end of the limiting sleeve (18).

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