Diesel engine oil tank outlet flange connection structure

Abstract

This application discloses a flange connection structure for the oil outlet of a diesel engine fuel tank, belonging to the field of diesel engine technology. It mainly includes a housing, and an inlet pipe and an outlet pipe mounted on the housing. A flange assembly is installed on the outlet pipe, and the flange assembly has a connecting pipe. A protective component is installed on the flange assembly, including a protective disc mounted on the connecting pipe. The protective disc has a groove, and two sets of fixing blocks are provided on the outer surface of the protective disc. A rotating block is hinged to the fixing block, and a protective cover is installed on the rotating block. The flange connection structure for the oil outlet of the diesel engine fuel tank of this application, through the setting of the protective component, allows the bolts and nuts to be enclosed inside the protective cover after the flange assembly is installed, preventing the bolts and nuts from oxidizing due to prolonged exposure to air, thus achieving the effect of protecting the flange connection.

Description

Technical Field

[0001] This application relates to the field of diesel engine technology, specifically to the flange connection structure of the oil tank outlet of a diesel engine. Background Technology

[0002] The diesel engine oil tank is a key component of the diesel engine fuel supply system. It is mainly used to store diesel fuel and provide a continuous fuel supply to the engine. However, most existing diesel engine oil tank outlets are connected by flanges and fuel supply lines. For example, the patent with publication number CN110344972A discloses a flange connection structure for the oil outlet of a single-cylinder diesel engine oil tank. The oil outlet pipe of the oil tank of the single-cylinder diesel engine is connected to the installation pipe through a metal hose and a flange, which improves the fatigue resistance of the connection pipe. A protective outer pipe is provided on the outside of the metal hose to prevent the metal hose from being damaged by collision or compression. This not only improves the performance of the metal hose, but also extends its service life. Although the above-mentioned patent can achieve the connection of pipelines, diesel engines are widely used in various vehicles due to their high torque, good fuel economy and durability. However, the operating environment of vehicles is varied. For example, the air in coastal areas is relatively humid. The connection of the pipeline is exposed to the air for a long time, which means that the bolts and nuts used for fixing are in a humid environment for a long time, and the surface may gradually form an oxide layer or rust. Therefore, it is necessary to provide a flange connection structure for the diesel engine oil tank outlet to solve the above problems.

[0003] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0004] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a flange connection structure for the oil tank outlet of a diesel engine to achieve the effect of protecting the flange connection.

[0005] The technical solution adopted by this application to solve its technical problem is: a diesel engine oil tank outlet flange connection structure, including a tank body, and an oil inlet pipe and an oil outlet pipe disposed on the tank body; a flange assembly disposed on the oil outlet pipe, the flange assembly having a connecting pipe suitable for installation; a protective assembly disposed on the flange assembly, the protective assembly including: a protective disc mounted on the connecting pipe, the protective disc having a groove; two sets of fixing blocks disposed on the outer surface of the protective disc; two sets of rotating blocks hinged to the fixing blocks; and a protective cover mounted on the rotating blocks.

[0006] Furthermore, the protective cover has arc grooves and cavities respectively, and the protective cover is semi-circular.

[0007] Furthermore, one set of shields has at least two sets of latches on its top, and the other set of shields has at least two sets of locking parts on its top.

[0008] Furthermore, the flange assembly includes an upper flange mounted at the bottom of the oil outlet pipe, and a lower flange is provided at the bottom of the upper flange.

[0009] Furthermore, the connecting pipe is installed on the lower flange, and both the upper and lower flanges have at least two sets of bolt holes.

[0010] Furthermore, a bolt is installed on the internal thread of the screw hole, and a nut is installed on the thread of the bolt.

[0011] The beneficial effects of this application are: the diesel engine oil tank outlet flange connection structure provided by this application, through the setting of protective components, allows the bolts and nuts to be wrapped inside the protective cover after the flange assembly is installed, preventing the bolts and nuts from oxidizing due to long-term exposure to air, thus achieving the effect of protecting the flange connection.

[0012] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an overall schematic diagram of the diesel engine oil tank outlet flange connection structure in this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 2 Another schematic diagram of the overall state of the middle part; The following are the labeling elements in the figure: 1. Housing; 101. Oil inlet pipe; 102. Oil outlet pipe; 2. Flange assembly; 21. Connecting pipe; 22. Upper flange; 23. Lower flange; 24. Bolt; 25. Nut; 3. Protective components; 31. Protective disc; 301. Groove; 32. Fixing block; 33. Rotating block; 34. Protective cover; 341. Cavity; 342. Arc groove; 35. Locking part; 36. Locking block. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0016] like Figures 1-3 As shown, this application provides a flange connection structure for the oil tank outlet of a diesel engine, including a housing 1. The housing 1 is provided with an inlet pipe 101 suitable for adding diesel fuel and an outlet pipe 102 suitable for discharging engine oil. A flange assembly 2 is provided on the outlet pipe 102, which is used to connect the outlet pipe 102 to the fuel supply line. Specifically: The flange assembly 2 includes an upper flange 22 fixedly installed at the bottom of the oil outlet pipe 102. A lower flange 23 is provided at the bottom of the upper flange 22. Multiple sets of screw holes are provided on both the upper flange 22 and the lower flange 23. Bolts 24 are installed in the internal threads of the screw holes. A nut 25 is threaded onto the bolt 24 so that the nut 25 can be rotated to move along the axis of the bolt 24 until the nut 25 abuts against the bottom of the lower flange 23, thereby fixing the upper flange 22 and the lower flange 23. A connecting pipe 21 is provided on the lower flange 23. The connecting pipe 21 can be connected to the subsequent oil supply line so that the diesel in the tank 1 can be introduced into the oil supply line through the oil outlet pipe 102 and the connecting pipe 21. A protective component 3 is provided on the flange assembly 2, which is used to protect the bolts 24 and nuts 25; like Figures 1-3 As shown, the protective component 3 includes a protective disc 31 disposed on the connecting pipe 21. The protective disc 31 has a groove 301. The diameter of the protective disc 31 is larger than the diameter of the upper flange 22 and the lower flange 23, so as to facilitate subsequent maintenance or repair. When the oil outlet pipe 102 and the connecting pipe 21 are disassembled, it can catch the diesel fuel remaining in the pipeline and prevent diesel fuel from dripping onto the ground or other equipment. Two sets of fixing blocks 32 are provided on the outer surface of the protective plate 31. A rotating block 33 is hinged to each of the two sets of fixing blocks 32. A protective cover 34 is fixedly installed on the rotating block 33. The protective cover 34 is semi-circular, and the highest point of the protective cover 34 is higher than the highest point of the upper flange 22. So that under the action of external force, the two sets of protective covers 34 can be driven to move closer or further apart, and when they move closer together, they can form a circular cover, at which time the circular cover will wrap around multiple sets of bolts 24 and nuts 25. It should be noted that both sets of protective covers 34 are provided with arc grooves 342 that are adapted to the oil outlet pipe 102, so as to avoid interference with the oil outlet pipe 102 when the two sets of covers are close to each other. Furthermore, both sets of protective covers 34 are provided with cavities 341, so that when the two sets of protective covers 34 are close to each other, the bolt 24 is located in the cavity 341 to isolate it from the air and prevent the bolt 24 from oxidizing and rusting due to prolonged exposure to the air. In addition, sealing gaskets are provided on the end face of the protective cover 34, the end face of the protective plate 31, and the arc groove 342, so as to prevent air from entering the cavity 341 when the protective cover 34 is fitted. Multiple sets of locking blocks 36 are provided on the top of one set of protective covers 34, and multiple sets of locking parts 35 are provided on the top of the other set of protective covers 34. The locking parts 35 can lock the locking blocks 36 when the two sets of protective covers 34 are in contact, thereby fixing the two sets of protective covers 34 and preventing them from shaking.

[0017] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A flange connection structure for the oil outlet of a diesel engine oil tank, characterized in that: include: The housing (1), and the oil inlet pipe (101) and oil outlet pipe (102) provided on the housing (1). A flange assembly (2) is disposed on the oil outlet pipe (102) and has a connecting pipe (21) suitable for installation. A protective assembly (3) disposed on the flange assembly (2), the protective assembly (3) comprising: A protective disc (31) is installed on the connecting pipe (21), and a groove (301) is provided on the protective disc (31). Two sets of fixing blocks (32) are disposed on the outer surface of the protective disc (31); Two sets of rotating blocks (33) are hinged to the fixed block (32); A protective cover (34) is mounted on the rotating block (33).

2. The diesel engine oil tank outlet flange connection structure according to claim 1, characterized in that: The protective cover (34) is provided with an arc groove (342) and a cavity (341), and the protective cover (34) is semi-circular.

3. The diesel engine oil tank outlet flange connection structure according to claim 2, characterized in that: One set of the protective covers (34) has at least two sets of latches (36) on its top, and the other set of the protective covers (34) has at least two sets of locking parts (35) on its top.

4. The diesel engine oil tank outlet flange connection structure according to claim 3, characterized in that: The flange assembly (2) includes an upper flange (22) installed at the bottom of the oil outlet pipe (102), and a lower flange (23) is provided at the bottom of the upper flange (22).

5. The diesel engine oil tank outlet flange connection structure according to claim 4, characterized in that: The connecting pipe (21) is installed on the lower flange (23), and at least two sets of screw holes are provided on both the upper flange (22) and the lower flange (23).

6. The diesel engine oil tank outlet flange connection structure according to claim 5, characterized in that: A bolt (24) is installed on the internal thread of the screw hole, and a nut (25) is installed on the thread of the bolt (24).

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