Natural gas common rail pipe

Abstract

The utility model discloses a natural gas common rail pipe which comprises a common rail pipe body, a plurality of communicating pipes are arranged on the common rail pipe body at equal intervals, a common rail pipe oil way pipe is arranged on the tops of the communicating pipes, an external pipe is connected to the top of the common rail pipe oil way pipe through threads, and a mounting plate is arranged on the outer wall of the common rail pipe oil way pipe in a sleeved mode. Sliding mechanisms are symmetrically arranged at the top of the mounting plate, sealing mechanisms are arranged at the tops of the sliding mechanisms, the sealing mechanisms are connected through locking mechanisms, and parts in the sliding ends are driven in a sliding mode, so that the multiple sealing mechanisms move and are attached to the connecting position of a common rail pipe oil way pipe and an external pipe. And then the multiple groups of locking ends are in butt joint due to the fact that the sealing ends are in butt joint, the multiple groups of butt-joint sealing ends are fixed and limited through bolts, and a sealing structure is additionally arranged at the connecting position of the common rail pipe oil way pipe and the external connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas common rail pipe auxiliary equipment, in particular to a natural gas common rail pipe. Background Art

[0002] The common rail pipe is a component in the common rail injection system, a crucial element connecting the fuel pump and injectors. It is a hollow metal pipe that is tightly connected to the common rail pressure sensor, high-pressure fuel pump, and injectors at the connection points through special processing techniques and accessories.

[0003] The common rail oil pipe and the external pipe are connected by threads, but if the thread connection is not smooth, gas and liquid will leak out. There is no sealing structure at the connection between the common rail oil pipe and the external pipe, which reduces practicality.

[0004] In view of this, a natural gas common rail is provided to overcome the above-mentioned defects. Utility Model Content

[0005] In response to the problems in the related technology, the present invention proposes a natural gas common rail pipe to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A natural gas common rail pipe comprises a common rail pipe body, a plurality of connecting pipes are equidistantly arranged on the common rail pipe body, a common rail oil pipe is arranged on the top of the connecting pipe, an external pipe is connected to the top of the common rail oil pipe via a thread, a mounting plate is sleeved on the outer wall of the common rail oil pipe, a sliding mechanism is symmetrically arranged on the top of the mounting plate, a sealing mechanism is arranged on the top of the sliding mechanism, and the sealing mechanisms are connected by a locking mechanism.

[0008] Preferably, fixing members are equidistantly arranged on the bottom surface of the common rail main body, and through holes are dug on the front surfaces of the fixing members.

[0009] Preferably, the sliding mechanism includes a slide groove, a return spring and a slider. The slide groove is symmetrically dug on the left and right sides of the top surface of the mounting plate. A return spring is provided on one side of the inner wall of the slide groove, and a slider is connected to one side of the return spring.

[0010] Preferably, the sealing mechanism includes an L-shaped movable plate and a sealing member, wherein the L-shaped movable plate is arranged on the top of the slider, and a sealing member is fixedly connected to one side of the L-shaped movable plate, and the sealing member is attached to the connection between the common rail oil pipe and the external pipe.

[0011] Preferably, the connection between the L-shaped movable plate and the slider is a fixed connection, and the slider is slidably arranged in a sliding groove.

[0012] Preferably, the locking mechanism includes a locking plate, a threaded groove and a bolt. The locking plate is arranged on the front surface of the seal. A threaded groove is dug on one side of the locking plate. The bolt is connected to the threaded groove through a thread.

[0013] This utility model has the following beneficial effects:

[0014] Compared with the existing technology, the natural gas common rail pipe is equipped with multiple structural combinations such as sliding mechanisms, sealing mechanisms and locking mechanisms. First, the components in the sliding end are driven by sliding to move multiple sets of sealing mechanisms and fit into the connection between the common rail oil pipe and the external pipe to provide a sealing effect. Next, multiple sets of locking ends are docked with the sealing ends, and the multiple sets of docked sealing ends are fixed and limited by bolts, thereby providing a sealing structure at the connection between the common rail oil pipe and the external pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the main structure of a natural gas common rail pipe according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of a natural gas common rail pipe according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of a sliding mechanism of a natural gas common rail pipe according to an embodiment of the present utility model;

[0019] Figure 4 It is an enlarged schematic diagram of the structure at point A of a natural gas common rail pipe according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Common rail body; 2. Connecting pipe; 3. Common rail oil pipe; 4. External pipe; 5. Mounting plate; 6. Sliding mechanism; 7. Sealing mechanism; 8. Locking mechanism; 9. Fixing part; 10. Through hole; 11. Slide groove; 12. Return spring; 13. Slider; 14. L-shaped moving plate; 15. Seal; 16. Locking plate; 17. Threaded groove; 18. Bolt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this practical embodiment clearer, the technical solutions in the embodiment will be clearly and completely described below in conjunction with the drawings in the practical embodiment. The following embodiments are used to illustrate this practical embodiment but are not used to limit the scope of this practical embodiment.

[0023] In the description of this utility model, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as a limitation on this utility model.

[0024] In the description of this utility, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility based on the specific circumstances.

[0025] Example

[0026] like Figure 1-4 As shown, a natural gas common rail pipe according to an embodiment of the present utility model includes a common rail pipe body 1, a plurality of connecting pipes 2 are equidistantly arranged on the common rail pipe body 1, a common rail oil pipe 3 is arranged on the top of the connecting pipe 2, an external pipe 4 is connected to the top of the common rail oil pipe 3 by a thread, a mounting plate 5 is sleeved on the outer wall of the common rail oil pipe 3, a sliding mechanism 6 is symmetrically arranged on the top of the mounting plate 5, a sealing mechanism 7 is arranged on the top of the sliding mechanism 6, and the sealing mechanisms 7 are connected by a locking mechanism 8. Fixing members 9 are equidistantly arranged on the bottom surface of the common rail pipe body 1, and a through hole 10 is dug on the front surface of the fixing member 9; first, the components in the sliding mechanism 6 are driven by sliding, so that the multiple sets of sealing mechanisms 7 move and fit to the connection between the common rail oil pipe 3 and the external pipe 4, and provide a sealing effect; then, the multiple sets of locking mechanisms 8 are docked and docked due to the sealing mechanism 7, and the multiple sets of docked sealing mechanisms 7 are fixed and limited by bolts 18, so as to provide a sealing structure at the connection between the common rail oil pipe 3 and the external pipe 4.

[0027] The sliding mechanism 6 includes a slide groove 11, a return spring 12 and a slider 13. The slide groove 11 is symmetrically dug on the left and right sides of the top surface of the mounting plate 5. A return spring 12 is provided on one side of the inner wall of the slide groove 11, and a slider 13 is connected to one side of the return spring 12. When the L-shaped movable plate 14 is pulled, the L-shaped movable plate 14 transmits the pulling force to the return spring 12 through the slider 13. The return spring 12 is deformed and slides with the slider 13 and the components thereon in the slide groove 11. The L-shaped movable plate 14 fixedly connected to the top of the slider 13 and the seal 15 fixedly connected thereto move laterally.

[0028] The sealing mechanism 7 includes an L-shaped movable plate 14 and a sealing member 15. The L-shaped movable plate 14 is arranged on the top of the slider 13. The sealing member 15 is fixedly connected to one side of the L-shaped movable plate 14. The sealing member 15 is attached to the connection between the common rail oil pipe 3 and the external pipe 4. The connection between the L-shaped movable plate 14 and the slider 13 is fixedly connected, and the slider 13 is slidably arranged in the slide groove 11; the L-shaped movable plate 14 fixedly connected to the top of the slider 13 and the sealing member 15 fixedly connected thereto move laterally, and multiple sealing members 15 are spliced ​​together and attached to the connection between the common rail oil pipe 3 and the external pipe 4.

[0029] The locking mechanism 8 includes a locking plate 16, a threaded groove 17 and a bolt 18. The locking plate 16 is arranged on the front surface of the sealing member 15. A threaded groove 17 is dug on one side of the locking plate 16. The bolt 18 is connected to the threaded groove 17 through a thread. When multiple sealing members 15 are fitted together, the locking plates 16 fixed thereon are docked, and the bolts 18 are threadedly connected so that the bolts 18 enter the multiple threaded grooves 17. The multiple sealing members 15 are fixed and limited, and a sealing effect is added to the connection between the common rail oil pipe 3 and the external pipe 4.

[0030] In summary, with the help of the above-mentioned technical solution of the present invention, when this device is in use, the L-shaped movable plate 14 is first pulled, and the L-shaped movable plate 14 transmits the pulling force to the return spring 12 through the slider 13. The return spring 12 is deformed and slides with the slider 13 and the components thereon in the slide groove 11. The L-shaped movable plate 14 fixedly connected to the top of the slider 13 and the seal 15 fixedly connected thereto move laterally. Multiple seals 15 are spliced ​​and fitted to the connection between the common rail oil circuit pipe 3 and the external pipe 4. When multiple seals 15 are fitted, the locking plates 16 fixed thereon are docked, and the bolts 18 are threadedly connected to allow the bolts 18 to enter the multiple thread grooves 17. Multiple seals 15 are fixed and limited, and a sealing effect is added to the connection between the common rail oil circuit pipe 3 and the external pipe 4.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A natural gas common rail pipe, characterized in that: The invention comprises a common rail pipe body (1), a plurality of connecting pipes (2) are equidistantly arranged on the common rail pipe body (1), a common rail pipe oil line pipe (3) is arranged on the top of the connecting pipe (2), an external pipe (4) is connected to the top of the common rail pipe oil line pipe (3) through a thread, a mounting plate (5) is sleeved on the outer wall of the common rail pipe oil line pipe (3), a sliding mechanism (6) is symmetrically arranged on the top of the mounting plate (5), a sealing mechanism (7) is arranged on the top of the sliding mechanism (6), and the sealing mechanisms (7) are connected to each other through a locking mechanism (8).

2. A natural gas common rail pipe according to claim 1, characterized in that: Fixing members (9) are equidistantly arranged on the bottom surface of the common rail pipe body (1), and through holes (10) are dug on the front surfaces of the fixing members (9).

3. The natural gas common rail pipe according to claim 2, characterized in that: The sliding mechanism (6) comprises a slide groove (11), a return spring (12) and a slider (13); the slide groove (11) is symmetrically excavated on the left and right sides of the top surface of the mounting plate (5); a return spring (12) is provided on one side of the inner wall of the slide groove (11); and a slider (13) is connected to one side of the return spring (12).

4. The natural gas common rail pipe according to claim 3, characterized in that: The sealing mechanism (7) comprises an L-shaped movable plate (14) and a sealing member (15); the L-shaped movable plate (14) is arranged on the top of the slider (13); one side of the L-shaped movable plate (14) is fixedly connected to the sealing member (15); the sealing member (15) is attached to the connection between the common rail oil pipe (3) and the external pipe (4).

5. The natural gas common rail pipe according to claim 4, characterized in that: The connection between the L-shaped movable plate (14) and the slider (13) is fixed, and the slider (13) is slidably arranged in the slide groove (11).

6. The natural gas common rail pipe according to claim 5, characterized in that: The locking mechanism (8) comprises a locking plate (16), a threaded groove (17) and a bolt (18); the locking plate (16) is arranged on the front surface of the sealing member (15); a threaded groove (17) is excavated on one side of the locking plate (16); and a bolt (18) is connected to the threaded groove (17) through a thread.

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