CN208416766U - A kind of common rail diesel engine high pressure fuel line connection - Google Patents
A kind of common rail diesel engine high pressure fuel line connection Download PDFInfo
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- CN208416766U CN208416766U CN201820989922.3U CN201820989922U CN208416766U CN 208416766 U CN208416766 U CN 208416766U CN 201820989922 U CN201820989922 U CN 201820989922U CN 208416766 U CN208416766 U CN 208416766U
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Abstract
The utility model discloses a kind of common rail diesel engine high pressure fuel line connections of Diesel Engine Technique Field, including cylinder head and electromagnetic fuel injector, the left side oil inlet of the electromagnetic fuel injector is provided with high-pressure connecting pipe, the high-pressure oil pipe and high-pressure connecting pipe are provided with connecting tube close to one end of connecting bend, the connection pipe outer wall is provided with latch segment along annular array, the high-pressure oil pipe and high-pressure connecting pipe outer wall are socketed with sealing ring, the high pressure fuel line connection structure is simple, it dismantles quick and easy for installation, by the latch segment that is arranged in connecting tube and locking slot by high-pressure oil pipe, high-pressure connecting pipe is fixedly connected with connecting tube, it is provided with sealing ring and sealing block simultaneously, the sealing-plug being arranged on sealing block ensure that the leakproofness of connection.
Description
Technical field
The utility model relates to Diesel Engine Technique Field, specially a kind of common rail diesel engine high pressure fuel line connection.
Background technique
High Pressure Common-Rail Fuel Inject is to separate the generation of fuel pressure with fuel injection processes, by
In the opening and closing for the high-speed electromagnetic valve being integrated on each fuel injector, timing, quantitative control fuel injector are sprayed to burning
The oil mass of room.
Existing diesel engine electromagnetic fuel injector oil inlet is connected directly with common rail pipe oil outlet using high-pressure oil pipe, and for
The not no good connection type of common rail diesel engine side feeding type electromagnetic fuel injector, and existing high-pressure oil pipe connection type is most
Using connection is threadedly engaged, this connection type is needed to take a substantial amount of time and be dismantled when needing replacing oil pipe every time
Installation, is more troublesome, for this purpose, we have proposed a kind of common rail diesel engine high pressure fuel line connections.
Utility model content
The purpose of this utility model is to provide a kind of common rail diesel engine high pressure fuel line connections, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of common rail diesel engine high-pressure oil pipe connection
Device, including cylinder head and electromagnetic fuel injector, the left side oil inlet of the electromagnetic fuel injector are provided with high-pressure connecting pipe, the height
It is socketed with connecting bend on the left of pressure connecting tube, high-pressure oil pipe is plugged at the top of the connecting bend, is set on the left of the connecting bend
It is equipped with compact heap, is provided with fixation kit on the right side of the compact heap, and compact heap is fixedly connected by fixation kit with cylinder head,
The high-pressure oil pipe and high-pressure connecting pipe are provided with connecting tube close to one end of connecting bend, and the connection pipe outer wall is along annular
Array is provided with latch segment, and connecting bend inner wall offers the locking slot to match with latch segment, the height along annular array
Pressuring oil pipe and high-pressure connecting pipe outer wall are socketed with sealing ring, the high-pressure oil pipe and high-pressure connecting pipe outer wall be socketed with
The sealing block that connecting bend matches, and sealing block is fixedly connected with sealing ring close to the side of connecting bend, the sealing
Block outer wall is provided with the sealing-plug of annular, and sealing-plug outer wall fits with connecting bend inner wall.
Preferably, the fixation kit includes the fixed link being connect with compact heap right side by screw connection manner, the fixation
The other end of bar offers the blind hole to match with fixed link on the left of cylinder head in cylinder head, the fixed link is separate
One end of compact heap extends in blind hole and is provided with sliding block, and blind hole inner wall offers the sliding slot to match with sliding block, blind hole
Fixed block is fixedly installed at aperture, the fixed link outer wall is socketed with spring, and spring is between fixed block and sliding block.
Preferably, the latch segment include with connect pipe outer wall connection link block, the link block far from connecting tube outside
The side of wall is provided with elastic block rubber, and the elastic block rubber is provided with sealing fixture block far from the side of link block, described close
It seals fixture block and the side of elastic block rubber is provided with magnetic block, and locking slot inner wall is provided with the iron to match with magnetic block
Piece.
Preferably, the sealing fixture block is provided with intilted bevel edge one, institute far from the side outer wall of elastic block rubber
State the bevel edge two for being provided on locking slot and matching with bevel edge one.
Preferably, sealing block inner end outer wall is provided with external screw thread, and connecting bend inner wall offers and external screw thread phase
Matched internal screw thread, the diameter of section of the connecting tube are less than the diameter of section of high-pressure oil pipe and high-pressure connecting pipe.
Preferably, the connecting bend and compact heap section are L shape, and the compact heap upper and lower ends are provided with arc pressure
Tight face.
Compared with prior art, the utility model has the beneficial effects that the high pressure fuel line connection structure is simple, disassembly
It is quick and easy for installation, by the latch segment that is arranged in connecting tube and locking slot by high-pressure oil pipe, high-pressure connecting pipe and connecting tube into
Row is fixedly connected, while being provided with sealing ring and sealing block, and the sealing-plug being arranged on sealing block ensure that the leakproofness of connection,
External screw thread is provided on sealing block, sealing block and connecting bend are spirally connected by operator's rotatable sealing lantern ring, improve
Whole leakproofness, is provided with fixation kit, to be fixedly connected with elbow and high-pressure connecting pipe, electromagnetic fuel injector, connects high pressure
Pipe is closely connect with electromagnetic fuel injector oil inlet.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model A structure enlargement diagram；
Fig. 3 is the utility model locking block structure schematic diagram.
In figure: 1 cylinder head, 2 compact heaps, 3 fixation kits, 31 fixed links, 32 fixed blocks, 33 sliding blocks, 4 connecting bends, 5 high
Pressuring oil pipe, 6 high-pressure connecting pipes, 7 electromagnetic fuel injectors, 8 connecting tubes, 9 latch segments, 91 link blocks, 92 elastic block rubbers, 93 sealing cards
Block, 94 magnetic blocks, 10 locking slots, 11 sealing rings, 12 sealing blocks, 121 sealing-plugs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of common rail diesel engine high-pressure oil pipe connection dress
It sets, including cylinder head 1 and electromagnetic fuel injector 7, the left side oil inlet of electromagnetic fuel injector 7 is provided with high-pressure connecting pipe 6, high pressure connection
Pipe 6 is provided with oil outlet conical head, and the oil inlet of oil outlet conical head and electromagnetic fuel injector 7 close to one end of electromagnetic fuel injector 7
Mouth size matches, and connecting bend 4 is socketed on the left of high-pressure connecting pipe 6, high-pressure oil pipe 5 is plugged at the top of connecting bend 4, connects
It is provided with compact heap 2 on the left of elbow 4, connect high-pressure connecting pipe 6 closely with 7 oil inlet of electromagnetic fuel injector, is set on the right side of compact heap 2
It is equipped with fixation kit 3, and compact heap 2 is fixedly connected by fixation kit 3 with cylinder head 1, high-pressure oil pipe 5 and high-pressure connecting pipe 6
One end close to connecting bend 4 is provided with connecting tube 8, connect for 5 high-pressure connecting pipe 6 of high-pressure oil pipe with connecting bend 4, even
8 outer wall of adapter tube is provided with latch segment 9 along annular array, and 4 inner wall of connecting bend offers and 9 phase of latch segment along annular array
The locking slot 10 matched keeps 5 high-pressure connecting pipe 6 of high-pressure oil pipe and connecting bend 4 fixed, 6 outer wall of high-pressure oil pipe 5 and high-pressure connecting pipe
It is socketed with sealing ring 11, improves the leakproofness of junction, high-pressure oil pipe 5 and 6 outer wall of high-pressure connecting pipe are socketed with and connect
The sealing block 12 that elbow 4 matches is connect, and sealing block 12 is fixedly connected with sealing ring 11 close to the side of connecting bend 4, it is close
Envelope 12 outer wall of block is provided with the sealing-plug 121 of annular, improves overall tightness, and 121 outer wall of sealing-plug and 4 inner wall of connecting bend
It fits.
Wherein, fixation kit 3 includes the fixed link 31 being connect with 2 right side of compact heap by screw connection manner, easy to disassemble, Gu
The other end of fixed pole 31 offers the blind hole to match with fixed link 31, fixed link through 1 left side of cylinder head in cylinder head 1
31 one end far from compact heap 2 extend in blind hole and are provided with sliding block 33, and blind hole inner wall offers and matches with sliding block 33
Sliding slot, be fixedly installed fixed block 32 at blind hole aperture, pulled convenient for operator, 31 outer wall of fixed link is socketed with spring,
Reset force is provided, makes stronger between compact heap 2 and connecting bend 4, and spring is between fixed block 32 and sliding block 33；
Latch segment 9 includes the link block 91 connecting with 8 outer wall of connecting tube, side of the link block 91 far from 8 outer wall of connecting tube
It is provided with elastic block rubber 92, enters in connecting bend 4 convenient for latch segment 9, plays the role of elastic telescopic, elastic block rubber 92
Side far from link block 91 is provided with sealing fixture block 93, and sealing fixture block 93 is magnetic far from the side setting of elastic block rubber 92
Block 94, and 10 inner wall of locking slot is provided with the iron plate to match with magnetic block 94 makes to engage between latch segment 9 and locking slot 10
It is closer, further improve sealing effect；
Sealing fixture block 93 is provided with intilted bevel edge one far from the side outer wall of elastic block rubber 92, on locking slot 10
It is provided with the bevel edge two to match with bevel edge one, bevel edge one and the upward one end of bevel edge two are rounding corner structure, and bevel edge is not only just
Enter in connecting bend 4 in latch segment 9, also improves sealing effect, and bevel edge one and the upward one end of bevel edge two use rounded corner
Structure is convenient for users to disassembly；
12 inner end outer wall of sealing block is provided with external screw thread, and in 4 inner wall of connecting bend offers and match with external screw thread
Screw thread facilitates operator to be threadably secured sealing block 12 and connecting bend 4, not only increases sealing effect, also effective
The bonding strength between high-pressure oil pipe 5, high-pressure connecting pipe 6 and connecting bend 4 is improved, the diameter of section of connecting tube 8 is less than height
The diameter of section of pressuring oil pipe 5 and high-pressure connecting pipe 6 enters in connecting bend 4 convenient for connecting tube 8；
Connecting bend 4 and 2 section of compact heap are L shape, and 4 inner cavity square edge of connecting bend is arranged to rounding corner structure,
It can effectively prevent internal pressure is excessive connecting bend 4 is caused to crack source, improve the service life of connecting bend 4, press
Tight 2 upper and lower ends of block are provided with arc seal face, have the groove to match with upper end arc seal face on the right side of connecting bend 4, mention
High compactness enables arc seal face preferably to contact compression with compacted position.
Working principle: when installation, the connecting tube 8 on high-pressure connecting pipe 6 is injected in connecting bend 4 first, seals fixture block
93 squeeze elastic block rubber 92, enter latch segment 9 in connecting tube 8, when latch segment 9 is contacted with locking slot 10, by elastic rubber
The iron plate in locking slot 10 is sucked in the influence of 92 elastic reset of block, magnetic block 94, so that latch segment 9 engages locking slot 10, it will
Sealing ring 11 enters sealing block 12 in connecting bend 4, sealing-plug 121 is made to be fitted and connected elbow to promotion at connecting bend 4
4 inner wall, rotary seal lantern ring 11 rotate sealing block 12, when side of the sealing ring 11 close to connecting bend 4 and connecting bending
First 4 when fitting, that is, completes the installation of high-pressure connecting pipe 6, connected high pressure after installing high-pressure oil pipe 5 according to above-mentioned steps
6 other end of adapter tube is connect with 7 oil inlet of electromagnetic fuel injector, pulls compact heap 2, drives fixed link 31 with the sidesway to the left of movable slider 33
It is dynamic to squeeze spring, so that the upper surface of compact heap 2 is compressed connecting bend 4, unclamps compact heap 2, influenced by spring, sliding block 33 is to the right
It is mobile, so that compact heap 2 is tightly pushed down connecting bend 4, and connect high-pressure connecting pipe 6 closely with 7 oil inlet of electromagnetic fuel injector, tears open
When unloading high-pressure connecting pipe 6, compact heap 2 is pulled, separates compact heap 2 with connecting bend 4, rotary seal lantern ring 11 drives sealing block
12 rotations, separate sealing block 12 with connecting bend 4, and sealing ring 11 is pulled to extract sealing block 12 out of connecting bend 4 out, draw
Dynamic high-pressure connecting pipe 6 makes the sealing fixture block 93 in connecting tube 8 squeeze elastic block rubber 92 and extracts out out of connecting bend 4, that is, completes
The disassembly of high-pressure connecting pipe 6 according to above-mentioned steps can dismantle high-pressure oil pipe 5, convenient and efficient.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of common rail diesel engine high pressure fuel line connection, including cylinder head (1) and electromagnetic fuel injector (7), it is characterised in that:
The left side oil inlet of the electromagnetic fuel injector (7) is provided with high-pressure connecting pipe (6), is socketed on the left of the high-pressure connecting pipe (6)
Connecting bend (4), connecting bend (4) top are plugged with high-pressure oil pipe (5), are provided with pressure on the left of the connecting bend (4)
Tight block (2), compact heap (2) right side is provided with fixation kit (3), and compact heap (2) passes through fixation kit (3) and cylinder head
(1) it is fixedly connected, one end of the high-pressure oil pipe (5) and high-pressure connecting pipe (6) close connecting bend (4) is provided with connecting tube
(8), connecting tube (8) outer wall is provided with latch segment (9) along annular array, and connecting bend (4) inner wall is opened along annular array
Equipped with the locking slot (10) to match with latch segment (9), the high-pressure oil pipe (5) and high-pressure connecting pipe (6) outer wall are socketed with
Sealing ring (11), the high-pressure oil pipe (5) and high-pressure connecting pipe (6) outer wall are socketed with to match with connecting bend (4)
Sealing block (12), and sealing block (12) is fixedly connected with sealing ring (11) close to the side of connecting bend (4), the sealing block
(12) outer wall is provided with the sealing-plug (121) of annular, and sealing-plug (121) outer wall fits with connecting bend (4) inner wall.
2. a kind of common rail diesel engine high pressure fuel line connection according to claim 1, it is characterised in that: described fixed group
Part (3) includes the fixed link (31) being connect with compact heap (2) right side by screw connection manner, and the other end of the fixed link (31) passes through
It wears on the left of cylinder head (1), and offers the blind hole to match with fixed link (31) in cylinder head (1), the fixed link (31) is remote
One end from compact heap (2) extends in blind hole and is provided with sliding block (33), and blind hole inner wall offers and sliding block (33) phase
The sliding slot matched is fixedly installed fixed block (32) at blind hole aperture, and fixed link (31) outer wall is socketed with spring, and spring position
Between fixed block (32) and sliding block (33).
3. a kind of common rail diesel engine high pressure fuel line connection according to claim 1, it is characterised in that: the latch segment
It (9) include the link block (91) being connect with connecting tube (8) outer wall, side of the link block (91) far from connecting tube (8) outer wall
It is provided with elastic block rubber (92), the elastic block rubber (92) is provided with sealing fixture block far from the side of link block (91)
(93), sealing fixture block (93) is provided with magnetic block (94) far from the side of elastic block rubber (92), and in locking slot (10)
Wall is provided with the iron plate to match with magnetic block (94).
4. a kind of common rail diesel engine high pressure fuel line connection according to claim 3, it is characterised in that: the sealing card
Block (93) is provided with intilted bevel edge one far from the side outer wall of elastic block rubber (92), is arranged on the locking slot (10)
There is the bevel edge two to match with bevel edge one.
5. a kind of common rail diesel engine high pressure fuel line connection according to claim 1, it is characterised in that: the sealing block
(12) inner end outer wall is provided with external screw thread, and connecting bend (4) inner wall offers the internal screw thread to match with external screw thread, the company
The diameter of section for taking over (8) is less than the diameter of section of high-pressure oil pipe (5) and high-pressure connecting pipe (6).
6. a kind of common rail diesel engine high pressure fuel line connection according to claim 1, it is characterised in that: the connecting bending
Head (4) and compact heap (2) section is L shape, and compact heap (2) upper and lower ends are provided with arc seal face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989922.3U CN208416766U (en) | 2018-06-21 | 2018-06-21 | A kind of common rail diesel engine high pressure fuel line connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989922.3U CN208416766U (en) | 2018-06-21 | 2018-06-21 | A kind of common rail diesel engine high pressure fuel line connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416766U true CN208416766U (en) | 2019-01-22 |
Family
ID=65108812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820989922.3U Active CN208416766U (en) | 2018-06-21 | 2018-06-21 | A kind of common rail diesel engine high pressure fuel line connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416766U (en) |
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2018
- 2018-06-21 CN CN201820989922.3U patent/CN208416766U/en active Active
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