CN112031970B - Common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function - Google Patents
Common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function Download PDFInfo
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- CN112031970B CN112031970B CN202010887460.6A CN202010887460A CN112031970B CN 112031970 B CN112031970 B CN 112031970B CN 202010887460 A CN202010887460 A CN 202010887460A CN 112031970 B CN112031970 B CN 112031970B
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- connecting pipe
- main body
- pipe
- pressure oil
- outer connecting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/002—Arrangement of leakage or drain conduits in or from injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/006—Measuring or detecting fuel leakage of fuel injection apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a common rail diesel engine high pressure oil pipe connecting device with a leakage monitoring function, which comprises a cylinder cover main body, an electromagnetic oil injector, a high pressure oil pipe body and a gravity sensor, wherein an outer connecting pipe and the electromagnetic oil injector are arranged inside the cylinder cover main body, the right side of the outer connecting pipe is provided with the electromagnetic oil injector, the inside of the cylinder cover main body is connected with an inner connecting pipe through a fixed rod, the right end of the inner connecting pipe is connected with the electromagnetic oil injector, the top end of the inner connecting pipe is internally and threadedly connected with the high pressure oil pipe body, the inner side wall of the top end of the inner connecting pipe is fixedly bonded with a second sealing gasket, and the second sealing gasket is attached to the high pressure oil pipe body. This common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function is provided with and holds the board, holds the board and can press down gravity sensor for gravity sensor received signal transmits the alarm through central processing module and sends out the police dispatch newspaper.
Description
Technical Field
The invention relates to the technical field of high-pressure oil pipes of common rail diesel engines, in particular to a high-pressure oil pipe connecting device of a common rail diesel engine with a leakage monitoring function.
Background
The high pressure oil pipe of the common rail diesel engine is used for conveying oil and used for the common rail diesel engine, and the high pressure oil pipe connecting device of the common rail diesel engine with the leakage monitoring function is
The patent publication No. CN107387278A discloses a high-pressure oil pipe connecting device of a common rail diesel engine, which solves the problems that the existing connecting mode cannot realize good connection of a side oil inlet type electromagnetic oil injector of the common rail diesel engine, and the material strength and the connecting method of a high-pressure oil pipe are required to be higher along with the continuous increase of the oil supply pressure of a fuel system of the common rail diesel engine, so that leakage is easily caused;
we have therefore proposed a common rail diesel engine high pressure fuel line connection device with a leakage monitoring function in order to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a common rail diesel engine high pressure oil pipe connecting device with a leakage monitoring function, and aims to solve the problems that the existing connecting device in the market can not be well monitored if the existing connecting device meets the leakage problem, so that workers can not find and remedy the leakage problem in time and the use work in the later period is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a common rail diesel engine high pressure oil pipe connecting device with a leakage monitoring function comprises a cylinder cover main body, an electromagnetic oil injector, a high pressure oil pipe body and a gravity sensor, wherein an outer connecting pipe and the electromagnetic oil injector are arranged inside the cylinder cover main body, the electromagnetic oil injector is arranged on the right side of the outer connecting pipe, the inside of the cylinder cover main body is connected with an inner connecting pipe through a fixing rod, the right end of the inner connecting pipe is connected with the electromagnetic oil injector, the top end of the inner connecting pipe is connected with the high pressure oil pipe body in a threaded manner, a second sealing gasket is fixedly bonded on the inner side wall of the top end of the inner connecting pipe and is attached to the high pressure oil pipe body, the lower end of the high pressure oil pipe body penetrates through the inside of the upper end of the outer connecting pipe, a pressing plate is integrally fixed on the outer side of the lower end of the high pressure oil pipe body, and a first sealing air bag main body is fixedly bonded inside the inner side wall of the upper end of the outer connecting pipe, a first sealing gasket is adhered to the outer side of the first sealing airbag main body and is adhered to the outer side wall of the high-pressure oil pipe body, a containing plate is adhered to the outer side surface of the upper end of the inner connecting pipe, a containing plate and a gravity sensor are arranged below the containing plate, the outer side of the containing plate is connected with the outer connecting pipe through screws, the inner side wall of the containing plate is connected with the inner connecting pipe through screws, the gravity sensor is fixed to the upper surface of the containing plate through screws, a containing groove is formed in the inner surface of the inner connecting pipe, a second sealing airbag main body is adhered and fixed to the inner side of the containing groove, a pressing plate is adhered to the upper side of the second sealing airbag main body, a sliding groove is formed in the inner side wall of the upper end of the outer connecting pipe, a baffle is connected to the top end of the outer connecting pipe, and an alarm is installed on the left side of the upper end of the outer connecting pipe;
the outer connecting pipe and the inner connecting pipe are arranged in an L-shaped structure, the inner wall of the right end of the outer connecting pipe and the outer wall of the right end of the inner connecting pipe are fixedly welded, and the highest point of the outer connecting pipe is higher than that of the inner connecting pipe;
positioning grooves are formed in the outer side of the upper end of the high-pressure oil pipe body at equal intervals by taking the center of the high-pressure oil pipe body as a circle center, and the positioning grooves and the baffle plates are arranged in a one-to-one correspondence manner;
the inner part of the bottom end of the baffle is fixedly penetrated with an installation shaft lever, a torsion spring is nested outside the rear end of the installation shaft lever, the front end of the torsion spring is connected with an installation shaft lever screw, the rear end of the torsion spring is connected with an outer connecting pipe screw, the baffle is arranged in an arc-shaped structure, the top end of the baffle is in concave-convex fit with the positioning groove, and the two ends of the installation shaft lever are connected with an outer connecting pipe bearing;
the pressure plate is arranged in a circular ring-shaped structure, the pressure plate is in concave-convex fit with the accommodating groove, and the accommodating groove is arranged in a circular ring-shaped structure;
the outer side of the first sealed air bag main body is provided with a conveying pipe, the lower end of the conveying pipe penetrates through an outer connecting pipe and an inner connecting pipe to be connected with the second sealed air bag main body, and the space inside the first sealed air bag main body is communicated with the space inside the second sealed air bag main body through the conveying pipe;
the first sealing gasket and the first sealing air bag main body are arranged in a circular ring-shaped structure, and the first sealing gasket and the high-pressure oil pipe body form a sliding structure through the first sealing air bag main body;
the outer side of the containing plate is provided with sliding blocks which are distributed and fixed at equal intervals by taking the center of the containing plate as the circle center, a reset spring is mounted on a screw above the sliding block, the top end of the reset spring is connected with a sliding groove screw, and the sliding block is clamped and slidably placed in the sliding groove;
the slide blocks and the return springs are arranged in a one-to-one correspondence mode, and the slide blocks and the outer connecting pipes form a sliding structure through the containing plates.
Compared with the prior art, the invention has the beneficial effects that: this common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function:
(1) the oil leakage monitoring device is characterized in that a containing plate is arranged, the containing plate is arranged in a U-shaped structure, the middle of the containing plate is arranged in a hollow shape, so that the containing plate can be attached to and slide on the outer side wall of an inner connecting pipe conveniently, when oil leakage occurs between the inner connecting pipe and a high-pressure oil pipe body, the oil can flow into the containing plate at the moment, a certain amount of oil can drive the containing plate to descend, when the containing plate descends to be in contact with a gravity sensor, the containing plate can press the gravity sensor downwards, the gravity sensor receives signals, the signals are transmitted to an alarm through a central processing module to send out an alarm, and leakage is monitored and alarmed well;
(2) the pressing plate is installed, the second sealing air bag main body is pressed through the annular pressing plate, the second sealing air bag main body and the pressing plate are matched with each other to perform secondary sealing operation, meanwhile, the second sealing air bag main body is extruded, so that part of gas in the second sealing air bag main body is conveyed to the first sealing air bag main body through the conveying pipe, the volume of the first sealing air bag main body is expanded, the first sealing air bag main body can conveniently support the first sealing gasket, and the first sealing gasket and the first sealing air bag main body are matched with each other well to perform sealing treatment between the external connecting pipe and the high-pressure oil pipe body;
(3) be fixed with the baffle, the baffle is arc column structure setting, drives the baffle through installation axostylus axostyle and torsion spring and rotates to the constant head tank in, and then be convenient for carry out the centre gripping to the high pressure fuel pipe body and fix, avoid the rotation of later stage high pressure fuel pipe body, improved high pressure fuel pipe body and in-connection pipe threaded connection's steadiness.
Drawings
FIG. 1 is a schematic main sectional view of the present invention;
FIG. 2 is a schematic view of a main sectional structure of the top end of the outer connecting tube according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic top view of the inner connecting tube of the present invention;
FIG. 5 is a schematic view of the bottom view structure of the high pressure oil pipe body of the present invention;
FIG. 6 is a schematic view of a sectional view of the connection between the plate and the outer connecting tube;
FIG. 7 is a schematic top view of the connection between the baffle and the outer connecting tube according to the present invention.
In the figure: 1. a cylinder head main body; 2. an outer connecting pipe; 3. fixing the rod; 4. an electromagnetic fuel injector; 5. a high pressure oil pipe body; 51. positioning a groove; 6. a baffle plate; 61. installing a shaft lever; 62. a torsion spring; 7. an alarm; 8. pressing a plate; 9. an internal connection pipe; 10. a first sealed airbag body; 11. a first gasket; 12. a delivery pipe; 13. a chute; 14. placing the plate; 15. a gravity sensor; 16. a holding plate; 17. a second sealed airbag body; 18. a second gasket; 19. a slider; 20. a return spring; 21. a containing groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a common rail diesel engine high pressure oil pipe connecting device with a leakage monitoring function comprises a cylinder cover main body 1, an outer connecting pipe 2, a fixing rod 3, an electromagnetic oil injector 4, a high pressure oil pipe main body 5, a positioning groove 51, a baffle plate 6, an installation shaft rod 61, a torsion spring 62, an alarm 7, a pressing plate 8, an inner connecting pipe 9, a first sealed air bag main body 10, a first sealed pad 11, a conveying pipe 12, a sliding groove 13, a placing plate 14, a gravity sensor 15, a containing plate 16, a second sealed air bag main body 17, a second sealed pad 18, a sliding block 19, a reset spring 20 and a containing groove 21, wherein the outer connecting pipe 2 and the electromagnetic oil injector 4 are installed inside the cylinder cover main body 1, the electromagnetic oil injector 4 is arranged on the right side of the outer connecting pipe 2, the inner connecting pipe 9 is connected inside the cylinder cover main body 1 through the fixing rod 3, and the right end of the inner connecting pipe 9 is connected with the electromagnetic oil injector 4, the top end of the inner connecting pipe 9 is connected with a high-pressure oil pipe body 5 through a thread inside, a second sealing gasket 18 is fixedly bonded on the top end inner side wall of the inner connecting pipe 9, the second sealing gasket 18 is attached to the high-pressure oil pipe body 5, the lower end of the high-pressure oil pipe body 5 penetrates through the upper end of the outer connecting pipe 2, a pressing plate 8 is integrally fixed on the lower end outer side of the high-pressure oil pipe body 5, a first sealing airbag main body 10 is fixedly bonded on the upper end inner side wall of the outer connecting pipe 2, a first sealing gasket 11 is mounted on the outer side of the first sealing airbag main body 10, the first sealing gasket 11 is attached to the outer side wall of the high-pressure oil pipe body 5, a containing plate 16 is attached to the upper end outer side wall of the inner connecting pipe 9, a containing plate 14 and a gravity sensor 15 are arranged below the containing plate 16, the outer side of the containing plate 14 is connected with the outer connecting pipe 2 through a screw, the inner side wall of the containing plate 14 is connected with the inner connecting pipe 9 through a screw, a gravity sensor 15 is fixed on the upper surface of the placing plate 14 through a screw, a containing groove 21 is formed in the inner portion of the upper surface of the inner connecting pipe 9, a second sealed air bag main body 17 is fixedly bonded in the containing groove 21, a pressing plate 8 is arranged above the second sealed air bag main body 17 in a laminating mode, a sliding groove 13 is formed in the inner side wall of the upper end of the outer connecting pipe 2, a baffle 6 is connected to the inner portion of the top end of the outer connecting pipe 2, and an alarm 7 is installed on the left side of the upper end of the outer connecting pipe 2;
the outer connecting pipe 2 and the inner connecting pipe 9 are both arranged in an L-shaped structure, the inner wall of the right end of the outer connecting pipe 2 and the outer wall of the right end of the inner connecting pipe 9 are fixedly welded, and the highest point of the outer connecting pipe 2 is higher than that of the inner connecting pipe 9, so that the outer connecting pipe 2 and the inner connecting pipe 9 are both arranged in the L-shaped structure, and the outer connecting pipe 2 and the inner connecting pipe 9 are matched with each other to install the high-pressure oil pipe body 5;
the inner part of the bottom end of the baffle 6 is fixedly provided with an installation shaft lever 61 in a penetrating way, the outer side of the rear end of the installation shaft lever 61 is nested with a torsion spring 62, the front end of the torsion spring 62 is in screw connection with the installation shaft lever 61, meanwhile, the rear end of the torsion spring 62 is in screw connection with the outer connecting pipe 2, the baffle 6 is arranged in an arc-shaped structure, meanwhile, the top end of the baffle 6 is in concave-convex fit with the positioning groove 51, and the two ends of the installation shaft lever 61 are in bearing connection with the outer connecting pipe 2, so that the baffle 6 can be conveniently reset through the torsion spring 62, and the baffle 6 is inserted into the corresponding positioning groove 51 to be in concave-convex fit;
the pressing plate 8 is arranged in a circular ring-shaped structure, the pressing plate 8 is in concave-convex fit with the accommodating groove 21, the accommodating groove 21 is arranged in a circular ring-shaped structure, the pressing plate 8 is arranged in a circular ring-shaped structure, and the pressing plate 8 is in concave-convex fit with the accommodating groove 21, so that the pressing plate 8 extrudes the second sealed airbag main body 17 in the accommodating groove 21;
a delivery pipe 12 is installed on the outer side of the first airbag main body 10, the lower end of the delivery pipe 12 penetrates through the outer connecting pipe 2 and the inner connecting pipe 9 to be connected with the second airbag main body 17, and the space inside the first airbag main body 10 is communicated with the space inside the second airbag main body 17 through the delivery pipe 12, so that the space inside the first airbag main body 10 is communicated with the space inside the second airbag main body 17 through the delivery pipe 12, and the gas inside the first airbag main body 10 and the gas inside the second airbag main body 17 can flow through each other;
the first sealing gasket 11 and the first sealing airbag main body 10 are both arranged in a circular ring-shaped structure, the first sealing gasket 11 and the high-pressure oil pipe body 5 form a sliding structure through the first sealing airbag main body 10, and the first sealing gasket 11 and the first sealing airbag main body 10 are both arranged in a circular ring-shaped structure, so that the first sealing gasket 11 and the high-pressure oil pipe body 5 are attached and sealed conveniently;
the outer side of the containing plate 16 is provided with sliding blocks 19 which are distributed and fixed at equal intervals by taking the center of the containing plate 16 as the center of a circle, a return spring 20 is arranged above each sliding block 19 through a screw, the top end of each return spring 20 is in screw connection with the sliding chute 13, the sliding blocks 19 are clamped and slidably arranged in the sliding chutes 13, and the containing plate 16 can be stably driven to lift through the sliding blocks 19;
the sliding blocks 19 are arranged in one-to-one correspondence with the return springs 20, the sliding blocks 19 form a sliding structure with the outer connecting pipe 2 through the containing plate 16, and therefore the sliding blocks 19 are arranged in one-to-one correspondence with the return springs 20, and the return springs 20 drive the sliding blocks 19 to reset conveniently in the later period.
The working principle of the embodiment is as follows: when the high-pressure oil pipe connecting device of the common rail diesel engine with the leakage monitoring function is used, firstly, the whole connecting device is moved into a working area, and when the connecting device needs to be connected for use, the right end of an outer connecting pipe 2 is in concave-convex fit with an electromagnetic fuel injector 4 as shown in figure 1, then a baffle 6 on the outer side of the upper end of the outer connecting pipe 2 is rotated outwards, so that the baffle 6 drives a mounting shaft rod 61 to rotate, the mounting shaft rod 61 drives a torsion spring 62 to accumulate force as shown in figure 7, then the lower end of a high-pressure oil pipe body 5 is rotated and downwards inserted into the inner part of the upper end of the outer connecting pipe 2 to be in threaded connection with an inner connecting pipe 9 in the outer connecting pipe 2, and at the same time, as shown in figures 2-5, the high-pressure oil pipe body 5 drives a pressing plate 8 on the outer side of the lower end to move downwards when moving downwards, the pressing plate 8 is inserted into the corresponding accommodating groove 21 to extrude the second sealing airbag main body 17, so that the second sealing airbag main body 17 and the pressing plate 8 are matched to perform sealing operation again, meanwhile, gas in the second sealing airbag main body 17 is conveyed into the first sealing airbag main body 10 through the conveying pipe 12, and the first sealing gasket 11 is extruded outwards by volume expansion of the first sealing airbag main body 10, so that the first sealing gasket 11 is attached to the high-pressure oil pipe body 5 more tightly, and the sealing performance of the connection between the high-pressure oil pipe body 5 and the outer connecting pipe 2 is improved;
then, the baffle 6 is loosened again, the baffle 6 is driven to reset under the action of the power stored by the torsion spring 62, so that the top end of the baffle 6 rotates into the positioning groove 51 to be clamped and connected, and further the high-pressure oil pipe body 5 is clamped and limited, so that the stability of the threaded connection between the high-pressure oil pipe body 5 and the internal connection pipe 9 is improved, the threaded connection is prevented from being loosened, the high-pressure oil pipe body 5 and the electromagnetic oil injector 4 are well connected by the whole connecting device, then the high-pressure oil pipe body 5 conveys the internal connection pipe 9, the oil is conveyed to the electromagnetic oil injector 4 through the internal connection pipe 9 for use, when the oil leaks out at the connection part between the high-pressure oil pipe body 5 and the internal connection pipe 9 in the conveying process, at this time, as shown in figures 1-3 and 6, the oil falls into the U-shaped containing plate 16, make the board 16 that holds descend after falling into a certain amount of fluid, at this moment the slider 19 in the board 16 outside that holds slides in spout 13, guarantee that the board 16 that holds descends steadily, hold the board 16 and press to gravity sensor 15 when descending, make gravity sensor 15 receive the signal of gravity from this, gravity sensor 15 gives central processing module with this signal transmission, central processing module transmits alarm 7 for alarm 7 gives the police dispatch newspaper, be convenient for from this fine monitoring and the alarm leaking, so that the staff in time discovers, the loss is reduced, guarantee safety, thereby accomplish a series of work.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. The utility model provides a common rail diesel engine high pressure fuel pipe connecting device with leak detection function, includes cylinder head main part (1), electromagnetic fuel injector (4), high pressure fuel pipe body (5) and gravity sensor (15), its characterized in that: the cylinder head is characterized in that an outer connecting pipe (2) and an electromagnetic oil sprayer (4) are installed inside the cylinder head main body (1), the electromagnetic oil sprayer (4) is arranged on the right side of the outer connecting pipe (2), the inside of the cylinder head main body (1) is connected with an inner connecting pipe (9) through a fixing rod (3), the right end of the inner connecting pipe (9) is connected with the electromagnetic oil sprayer (4), a high-pressure oil pipe body (5) is connected to the inner side wall of the top end of the inner connecting pipe (9) in a threaded mode, a second sealing gasket (18) is fixedly bonded to the inner side wall of the top end of the inner connecting pipe (9), the second sealing gasket (18) is attached to the high-pressure oil pipe body (5), the lower end of the high-pressure oil pipe body (5) penetrates through the inside of the upper end of the outer connecting pipe (2), a pressing plate (8) is integrally fixed to the outer side of the lower end of the high-pressure oil pipe body (5), a first sealing air bag main body (10) is fixedly bonded to the inner side wall of the upper end of the outer connecting pipe (2), a first sealing gasket (11) is adhered to the outer side of the first sealing airbag main body (10), the first sealing gasket (11) is adhered to the outer side wall of the high-pressure oil pipe body (5), a containing plate (16) is adhered to the outer side surface of the upper end of the inner connecting pipe (9), a containing plate (14) and a gravity sensor (15) are arranged below the containing plate (16), the outer side of the containing plate (14) is in screw connection with the outer connecting pipe (2), the inner side wall of the containing plate (14) is in screw connection with the inner connecting pipe (9), the gravity sensor (15) is fixed to the upper surface of the containing plate (14) through screws, a containing groove (21) is formed in the inner surface of the inner connecting pipe (9), a second sealing airbag main body (17) is adhered and fixed to the inside of the containing groove (21), and a pressing plate (8) is adhered and arranged above the second sealing airbag main body (17), a sliding groove (13) is formed in the inner side wall of the upper end of the outer connecting pipe (2), a baffle (6) is connected to the inside of the top end of the outer connecting pipe (2), and an alarm (7) is mounted on the left side of the upper end of the outer connecting pipe (2);
the outer connecting pipe (2) and the inner connecting pipe (9) are arranged in an L-shaped structure, the inner wall of the right end of the outer connecting pipe (2) is welded and fixed with the outer wall of the right end of the inner connecting pipe (9), and the highest point of the outer connecting pipe (2) is higher than that of the inner connecting pipe (9);
positioning grooves (51) are formed in the outer side of the upper end of the high-pressure oil pipe body (5) at equal intervals by taking the center of the high-pressure oil pipe body (5) as a circle center, and the positioning grooves (51) are arranged in one-to-one correspondence with the baffles (6);
the inner part of the bottom end of the baffle (6) is fixedly provided with an installation shaft lever (61) in a penetrating manner, the outer side of the rear end of the installation shaft lever (61) is nested with a torsion spring (62), the front end of the torsion spring (62) is in screw connection with the installation shaft lever (61), the rear end of the torsion spring (62) is in screw connection with the outer connecting pipe (2), the baffle (6) is arranged in an arc-shaped structure, the top end of the baffle (6) is in concave-convex fit with the positioning groove (51), and two ends of the installation shaft lever (61) are in bearing connection with the outer connecting pipe (2);
the pressing plate (8) is arranged in a circular ring-shaped structure, the pressing plate (8) is in concave-convex fit with the accommodating groove (21), and the accommodating groove (21) is arranged in a circular ring-shaped structure;
a conveying pipe (12) is installed on the outer side of the first sealed air bag main body (10), the lower end of the conveying pipe (12) penetrates through the outer connecting pipe (2) and the inner connecting pipe (9) to be connected with the second sealed air bag main body (17), and the space inside the first sealed air bag main body (10) is communicated with the space inside the second sealed air bag main body (17) through the conveying pipe (12);
the first sealing gasket (11) and the first sealing airbag main body (10) are arranged in a circular ring-shaped structure, and the first sealing gasket (11) and the high-pressure oil pipe body (5) form a sliding structure through the first sealing airbag main body (10);
the outer side of the containing plate (16) is provided with sliding blocks (19) which are distributed and fixed at equal intervals by taking the center of the containing plate (16) as the circle center, a return spring (20) is mounted on the upper portion of each sliding block (19) through a screw, the top end of each return spring (20) is connected with the sliding chute (13) through a screw, and the sliding blocks (19) are clamped and slidably placed in the sliding chutes (13);
the sliding blocks (19) and the return springs (20) are arranged in a one-to-one correspondence mode, and the sliding blocks (19) and the outer connecting pipe (2) form a sliding structure through the containing plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887460.6A CN112031970B (en) | 2020-08-28 | 2020-08-28 | Common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887460.6A CN112031970B (en) | 2020-08-28 | 2020-08-28 | Common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function |
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| Publication Number | Publication Date |
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| CN112031970A CN112031970A (en) | 2020-12-04 |
| CN112031970B true CN112031970B (en) | 2022-03-11 |
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| CN202010887460.6A Active CN112031970B (en) | 2020-08-28 | 2020-08-28 | Common rail diesel engine high pressure fuel pipe connecting device with leakage monitoring function |
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| CN112857660B (en) * | 2021-01-08 | 2022-08-05 | 上海梓砼科技有限公司 | Mounting structure of water pressure detection sensor |
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| CN108368808A (en) * | 2015-10-09 | 2018-08-03 | 瓦锡兰芬兰有限公司 | Leak detecting device |
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| JP2007040243A (en) * | 2005-08-04 | 2007-02-15 | Denso Corp | High pressure fuel seal structure for fuel injection device |
| CN108368808A (en) * | 2015-10-09 | 2018-08-03 | 瓦锡兰芬兰有限公司 | Leak detecting device |
| CN107387278A (en) * | 2017-08-30 | 2017-11-24 | 河南柴油机重工有限责任公司 | A kind of common rail diesel engine high pressure fuel line connection |
| CN208720210U (en) * | 2018-06-06 | 2019-04-09 | 广州澳圣洁化工科技有限公司 | A kind of high-performance bio alcohol oil firing machine |
| CN211009367U (en) * | 2019-11-28 | 2020-07-14 | 徐州国联数控设备科技有限公司 | Hydraulic cylinder with high sealing and leakage prevention functions |
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| CN112031970A (en) | 2020-12-04 |
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