CN207761864U - A kind of detachable oil spout mouth structure - Google Patents
A kind of detachable oil spout mouth structure Download PDFInfo
- Publication number
- CN207761864U CN207761864U CN201721713457.2U CN201721713457U CN207761864U CN 207761864 U CN207761864 U CN 207761864U CN 201721713457 U CN201721713457 U CN 201721713457U CN 207761864 U CN207761864 U CN 207761864U
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- Prior art keywords
- valve body
- needle
- lower valve
- valve
- chamber
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Abstract
A kind of detachable oil spout mouth structure, belongs to oil pump nozzle technical field.Including needle-valve body, needle-valve, spray orifice, needle-valve body is with shoe cream room top for boundary, it is divided into upper valve body, lower valve body, is additionally provided with thread cap, thread cap open at one end, the other end is equipped with the hole passed through for lower valve body, thread cap open end inner cavity is equipped with internal thread, and the upper valve body sidewall is equipped with external screw thread, and thread cap passes through lower valve body, and be threadedly coupled with upper valve body, it is integral to connect upper and lower valve body；The lower valve body is being equipped with two protrusions with upper valve body contact position, and two protrusions are symmetrical, and the upper valve body is being respectively equipped with matched groove with two raised corresponding positions, and protrusion is placed in corresponding groove；Needle-valve is equipped with the helicla flute of downward spiral winding in the part in lower valve chamber, lateral wall.The utility model is simple and reasonable, manufactures and is easy, has saved resource, improved the combustion rate of fluid, have a vast market space.
Description
Technical field
The utility model is related to a kind of structures of oil nozzle for diesel engine, and it is a kind of detachable oil spout mouth structure to have,
Belong to oil pump nozzle technical field.
Background technology
Fuel injector is needed in the oil supply system of diesel engine, wherein the job stability of atomizer is for entire fuel injector
System significance is great.At present applied to the atomizer on diesel engine, the needle-valve for generally comprising valve body and being arranged in needle-valve body, needle
The contact surface of valve and needle-valve body is shiny surface, and needle-valve ceaselessly moves axially in reciprocal fashion in needle-valve body, and long-term work is got off,
The two contact site is easy to wear, influences working effect, leads to energy waste.
Utility model content
The purpose of this utility model is in view of the above shortcomings of the prior art, to provide a kind of detachable oil spout mouth structure,
To reduce the wasting of resources.
The purpose of this utility model is achieved through the following technical solutions：A kind of detachable oil spout mouth structure, including
Needle-valve body, the needle-valve being placed in needle-valve body cavity, several spray orifices positioned at needle-valve body head, the needle-valve body cavity are divided into upper valve
Chamber, the shoe cream room at middle part, lower valve chamber, bottom balancing gate pit, the needle-valve body is equipped with oil input channel with shoe cream room unicom, needle-valve body
Lower valve chamber and balancing gate pit junction be equipped with sealing cone A, the needle-valve is set in the corresponding positions sealing cone A with needle-valve body
There is sealing cone B；
It is characterized in that the needle-valve body at the top of shoe cream room, for boundary, to be divided into upper valve body, lower valve body, be additionally provided with thread cap, spiral shell
Line cap open at one end, the other end are equipped with the hole passed through for lower valve body, and thread cap open end inner cavity is equipped with internal thread, the upper valve body
Side wall is equipped with external screw thread, and thread cap passes through lower valve body, and is threadedly coupled with upper valve body, integral to connect upper and lower valve body；
The lower valve body is being equipped with two protrusions with upper valve body contact position, and two protrusions are symmetrical, and the upper valve body is corresponding with two protrusions
Matched groove is respectively equipped at position, protrusion is placed in corresponding groove；The needle-valve is in lower valve chamber
Part, lateral wall are equipped with the helicla flute of downward spiral winding.
Further, elastic seal ring is equipped in the middle part of the needle-valve, which is placed on needle-valve outer wall, and positioned at storage
In oil pocket.
Further, it is circular flat structure at the top of the elastic seal ring, bottom is cone structure；The circular flat
The outer diameter of structure is more than uuper valve chamber internal diameter, and the cone structure of the bottom and the shoe cream room shape at the top of lower valve chamber match.
Further, it is embedded with elastic sheet at the oil inlet of the spray orifice, cross mouth is provided in the middle part of the elastic sheet.
Further, the vestibule of the spray orifice be divided into the big conical cavity of inside, the oval chamber at middle part, outside fine taper
Chamber.
In the utility model, by needle-valve body fission at upper valve body and lower valve body two parts,（It is T-shaped）Lower valve body passes through screw thread
The hole of cap, thread cap are threadedly coupled with upper valve body, and upper and lower valve body is securely connected.When valve body and needle-valve are through moving back and forth
After abrasion, corresponding upper valve body or lower valve body can be replaced according to the degree of wear, without entire valve body is needed to change, save resource.Upper,
The setting of the groove, convex block of lower valve body contact position, positions rapidly when can facilitate installation, in addition also increases connectivity robustness.
In the utility model, the helicla flute of downward spiral winding is set in needle-valve lateral wall, when oil spout, fluid can be via spiral shell
Spin slot forms certain spiral force, improves the pressure that spray orifice spraying is opened so that the oil atomization of ejection more it is thin evenly,
Improve fuel efficiency.Elastic seal ring is set in the middle part of needle-valve, when needle-valve not by it is open-top when, i.e. sealing cone A and sealed taper
Face B is closed, and elastic seal ring is placed in shoe cream room, can prevent the fluid in shoe cream room from entering in balancing gate pit, avoid spray orifice oil dripping；
When needle-valve by it is open-top when, i.e., sealing cone A is detached with sealing cone B, and elastic seal ring moves up, and uuper valve chamber is blocked, and prevents from spraying
Fluid enters in uuper valve chamber when oily.The elastic sheet for being provided with cross mouth of spray orifice setting, when fluid sprays, the pressure of fluid to
The cross mouth of outer open-top elastic sheet, sprays fluid；After oil spout, elastic sheet can prevent fluid from flowing back into needle-valve body sky
Intracavitary.The vestibule of spray orifice be divided into the big conical cavity of inside, the oval chamber at middle part, outside fine taper chamber, prevented also from fluid
It flows back into needle-valve body.
The utility model is simple and reasonable, manufactures and is easy, has saved resource, improved the combustion rate of fluid, has
There is the wide market space.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view of thread cap in the utility model；
Fig. 3 is the vertical view of elastic seal ring in the utility model；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the schematic diagram of elastic sheet in the utility model；
Fig. 6 is the sectional view of spray orifice in the utility model.
Specific implementation mode
A kind of detachable oil spout mouth structure, including needle-valve body 1, be placed in needle-valve body cavity needle-valve 2, be located at needle-valve body
Several spray orifices 3 on head.It is embedded with elastic sheet 20 at the oil inlet of spray orifice, cross mouth 21 is provided in the middle part of the elastic sheet.Spray orifice
Vestibule be divided into the big conical cavity 22 of inside, the oval chamber 23 at middle part, outside fine taper chamber 24.
Needle-valve body cavity be divided into uuper valve chamber 4, the shoe cream room 5 at middle part, lower valve chamber 6, bottom balancing gate pit 7, needle-valve body is equipped with
With the oil input channel 8 of shoe cream room unicom, lower valve chamber and the balancing gate pit junction of needle-valve body are equipped with sealing cone A（9）, needle-valve with needle
The corresponding positions sealing cone A of valve body are equipped with sealing cone B.
Needle-valve body at the top of shoe cream room, for boundary, to be divided into upper valve body 10, lower valve body 11, be additionally provided with thread cap 12, thread cap one
End is open, and the other end is equipped with the hole 13 passed through for lower valve body, and thread cap open end inner cavity is equipped with internal thread 14, and upper valve body sidewall is set
There is external screw thread, thread cap passes through lower valve body, and is threadedly coupled with upper valve body, integral to connect upper and lower valve body.
Lower valve body is being equipped with two protrusions 15 with upper valve body contact position, and two protrusions are symmetrical, and upper valve body is right with two protrusions
It answers and is respectively equipped with matched groove at position, protrusion is placed in corresponding groove.Needle-valve is in the portion in lower valve chamber
Point, lateral wall is equipped with the helicla flute 16 of downward spiral winding.
Elastic seal ring 17 is equipped in the middle part of needle-valve, which is placed on needle-valve outer wall（That is the pressure-bearing conical surface 25 of needle-valve
Place）, and in shoe cream room.It is circular flat structure 18 at the top of elastic seal ring, bottom is cone structure 19.Circular flat knot
The outer diameter of structure is more than uuper valve chamber internal diameter, and the cone structure of bottom and the shoe cream room shape at the top of lower valve chamber match.
High pressure oil enters in the shoe cream room of atomizer, generates thrust, and needle-valve is open-top upwards, sealing cone A, B separation, needle-valve
It opens, commencement of fuel injection；Injection pump fuel cut-off, needle-valve are closed, and sealing cone A, B fitting, spray orifice closes, and terminates oil spout.
Claims (5)
1. a kind of detachable oil spout mouth structure, including needle-valve body（1）, the needle-valve that is placed in needle-valve body cavity（2）, be located at needle-valve
Several spray orifices on body head（3）, the needle-valve body cavity is divided into uuper valve chamber（4）, middle part shoe cream room（5）, lower valve chamber（6）, bottom
The balancing gate pit in portion（7）, the needle-valve body is equipped with the oil input channel with shoe cream room unicom（8）, lower valve chamber and the balancing gate pit of needle-valve body connect
It meets place and is equipped with sealing cone A（9）, the needle-valve with the corresponding positions sealing cone A of needle-valve body be equipped with sealing cone B；
It is characterized in that the needle-valve body at the top of shoe cream room, for boundary, to be divided into upper valve body（10）, lower valve body（11）, it is additionally provided with screw thread
Cap（12）, thread cap open at one end, the other end is equipped with the hole passed through for lower valve body（13）, thread cap open end inner cavity is equipped with interior spiral shell
Line（14）, the upper valve body sidewall is equipped with external screw thread, and thread cap passes through lower valve body, and is threadedly coupled with upper valve body, thus by it is upper,
Lower valve body connects integral；The lower valve body is being equipped with two protrusions with upper valve body contact position（15）, two protrusions are symmetrical, described
Upper valve body is being respectively equipped with matched groove with two raised corresponding positions, and protrusion is placed in corresponding groove；It is described
Needle-valve is equipped with the helicla flute of downward spiral winding in the part in lower valve chamber, lateral wall（16）.
2. a kind of detachable oil spout mouth structure according to claim 1, characterized in that be equipped with elasticity in the middle part of the needle-valve
Sealing ring（17）, which is placed on needle-valve outer wall, and is located in shoe cream room.
3. a kind of detachable oil spout mouth structure according to claim 2, characterized in that be at the top of the elastic seal ring
Circular flat structure（18）, bottom is cone structure（19）；The outer diameter of the circular flat structure is more than uuper valve chamber internal diameter, described
The cone structure of bottom and the shoe cream room shape at the top of lower valve chamber match.
4. a kind of detachable oil spout mouth structure according to claim 1, characterized in that embedding at the oil inlet of the spray orifice
Flexible thin slice（20）, elastic sheet middle part is provided with cross mouth（21）.
5. a kind of detachable oil spout mouth structure according to claim 1, characterized in that in the vestibule of the spray orifice is divided into
The big conical cavity of side（22）, middle part oval chamber（23）, outside fine taper chamber（24）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713457.2U CN207761864U (en) | 2017-12-11 | 2017-12-11 | A kind of detachable oil spout mouth structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721713457.2U CN207761864U (en) | 2017-12-11 | 2017-12-11 | A kind of detachable oil spout mouth structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207761864U true CN207761864U (en) | 2018-08-24 |
Family
ID=63190388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721713457.2U Expired - Fee Related CN207761864U (en) | 2017-12-11 | 2017-12-11 | A kind of detachable oil spout mouth structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207761864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403834A (en) * | 2020-10-26 | 2021-02-26 | 深圳市腾盛精密装备股份有限公司 | Single-liquid screw valve |
-
2017
- 2017-12-11 CN CN201721713457.2U patent/CN207761864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403834A (en) * | 2020-10-26 | 2021-02-26 | 深圳市腾盛精密装备股份有限公司 | Single-liquid screw valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20211211 |