CN216714585U

CN216714585U - Oil outlet valve for diesel engine oil injection pump

Info

Publication number: CN216714585U
Application number: CN202220103848.7U
Authority: CN
Inventors: 王海龙; 申之敏
Original assignee: Shandong Xinya Industrial Co ltd
Current assignee: Shandong Xinya Industrial Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-10
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the technical field of diesel engines and discloses an oil outlet valve for an oil injection pump of a diesel engine, which comprises an end head, a valve core mechanism and a connector, wherein the valve core mechanism is arranged inside the end head, the lower end of the connector is remained on the end head, the valve core mechanism comprises a supporting plate and an insertion hole, the insertion hole is formed in the upper surface of the supporting plate, a valve rod is inserted into the insertion hole, and a limiting plate is fixedly arranged at the top end of the valve rod. This an oil outlet valve for diesel engine injection pump sets up two oilholes through the inside at the connector, can effectively avoid an oilhole to block up the phenomenon that leads to the unable work of oil outlet valve, sets up the recess simultaneously on the valve plug and can collect greasy dirt impurity, avoids impurity to block up in oilhole department, when oil outlet valve during operation, its valve plug can be promoted downstream by diesel oil, its diesel oil flows from the oilhole, simple structure can effectively avoid the phenomenon of oil outlet valve jam, has improved oil outlet valve's practicality.

Description

Oil outlet valve for diesel engine oil injection pump

Technical Field

The utility model relates to the technical field of diesel engines, in particular to an oil outlet valve for an oil injection pump of a diesel engine.

Background

The diesel engine that the diesel engine mainly carries out energy and obtains through the burning of diesel oil, its diesel engine has the advantage that power is big, need the injection pump in the diesel engine simultaneously, the inside of injection pump need use out oil valve simultaneously, thereby make the device at the in-process of oil feed, open the passageway through the oil pressure is automatic, the passageway is closed and is sealed the work after the oil pressure is not enough simultaneously, it is one of the part on the car to go out oil valve, the lower part of going out oil valve is the cross section, can lead, can pass through diesel oil again. A small cylindrical surface is arranged under the conical surface of the oil outlet valve, and is called a pressure reducing ring belt, and the function of the pressure reducing ring belt is to enable the oil pressure in the high-pressure oil pipe to be rapidly reduced when oil supply is finished, so that the oil dripping phenomenon at a spray hole is avoided. When the ring belt falls into the valve seat, the volume above the ring belt is increased quickly, the pressure is reduced quickly, the spray is stopped quickly, the oil outlet valve is one of precise coupling parts in the oil injection pump, and the ring belt plays a key role in controlling the residual pressure, the oil injection time, the oil injection rule, the speed characteristic and the like of a high-pressure system in the oil injection process.

The oil outlet valve of the existing diesel engine oil injection pump can be blocked after being used for a long time, so that the oil outlet valve can not be normally used.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil outlet valve for an oil injection pump of a diesel engine, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an oil outlet valve for diesel engine injection pump, includes end, case mechanism and connector, case mechanism sets up in the inside of end, the lower extreme of connector is remained to the end.

The valve core mechanism comprises a supporting plate and a jack, the jack is arranged on the upper surface of the supporting plate, a valve rod is inserted into the jack, a limiting plate is fixedly arranged at the top end of the valve rod, a spring is sleeved on a rod body of the valve rod, a valve plug is fixedly arranged on the upper surface of the limiting plate, and a groove is formed in the upper surface of the valve plug.

Preferably, the supporting plate is fixedly installed in the end, the lower end of the valve rod is fixedly provided with a limiting block, and the limiting block can prevent the valve rod from being separated from the jack to limit the valve rod.

Preferably, an oil cavity is formed in the connector, an oil hole is formed in the connector, the oil hole is communicated with the oil cavity, and oil in the oil cavity can be conveniently led out due to the arrangement of the oil hole.

Preferably, the quantity of oilhole is two, its two the oilhole is seted up respectively at the inside left wall and the inside right wall of connector, sets up two oilholes and can effectively prevent that a oilhole from appearing blockking up and leading to the unable phenomenon of using of delivery valve, has improved delivery valve's practicality.

Preferably, the valve plug is inserted in the oil cavity, the size of the valve plug is consistent with that of the oil cavity, and the valve plug can prevent oil from flowing back.

Preferably, the butt joint groove has been seted up to the inside upper end of end, the internal thread has been seted up to the inner wall in butt joint groove, the inside threaded connection in butt joint groove has the go-between, and its end can be dismantled, avoids the oil outlet valve integration to lead to the inconvenient phenomenon of clearing up of inside greasy dirt.

Preferably, the outer wall of the connecting ring is provided with external threads, the connecting ring is fixedly connected to the outer wall of the connector, and the external threads are arranged to facilitate the connection of the connecting ring and the end head.

Compared with the prior art, the utility model provides the oil outlet valve for the diesel engine oil injection pump. The method has the following beneficial effects:

this an oil outlet valve for diesel engine injection pump sets up two oilholes through the inside at the connector, can effectively avoid an oilhole to block up the phenomenon that leads to the unable work of oil outlet valve, sets up the recess simultaneously on the valve plug and can collect greasy dirt impurity, avoids impurity to block up in oilhole department, when oil outlet valve during operation, its valve plug can be promoted downstream by diesel oil, its diesel oil flows from the oilhole, simple structure can effectively avoid the phenomenon of oil outlet valve jam, has improved oil outlet valve's practicality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of a tip according to the present invention;

FIG. 4 is a schematic structural view of a valve core mechanism of the present invention;

FIG. 5 is a schematic top view of the tip of the present invention.

In the figure: 1. a tip; 2. a valve core mechanism; 201. a support plate; 202. a jack; 203. a valve stem; 204. a spring; 205. a limiting plate; 206. a valve plug; 207. a groove; 208. a limiting block, 3 and a connector; 4. a connecting ring; 5. an oil chamber; 6. and an oil hole.

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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an oil outlet valve for diesel engine injection pump, includes end 1, case mechanism 2 and connector 3, and case mechanism 2 sets up in the inside of end 1, and end 1 remains the lower extreme of connector 3.

Valve core mechanism 2 includes backup pad 201 and jack 202, jack 202 has been seted up in the upper surface of backup pad 201, the inside grafting of jack 202 has valve rod 203, the top fixed mounting of valve rod 203 has limiting plate 205, the body of rod of valve rod 203 has cup jointed spring 204, the last fixed surface of limiting plate 205 installs valve plug 206, the upper surface of valve plug 206 is seted up flutedly 207, its limiting plate 205 can play sealed effect, avoid diesel oil to flow through the boundary wall gap of valve plug 206, backup pad 201 plays the support limiting displacement to valve rod 203.

The supporting plate 201 is fixedly arranged inside the end head 1, the lower end of the valve rod 203 is fixedly provided with a limiting block 208, the limiting block 208 can prevent the valve rod 203 from being separated from the inside of the jack 202 to play a limiting role of the valve rod 203, the inside of the connector 3 is provided with an oil cavity 5, the inside of the connector 3 is provided with two oil holes 6, the oil holes 6 are communicated with the oil cavity 5, the oil holes 6 can conveniently lead out oil in the oil cavity 5, the number of the oil holes 6 is two, the two oil holes 6 are respectively arranged on the left wall and the right wall inside the connector 3, the arrangement of the two oil holes 6 can effectively prevent the phenomenon that the oil outlet valve cannot be used due to the blockage of one oil hole, the practicability of the oil outlet valve is improved, the valve plug 206 is inserted into the oil cavity 5, the size of the valve plug 206 is consistent with the size of the inside of the oil cavity 5, and the valve plug 206 can prevent the phenomenon that the oil flows back, the upper end of the interior of the end 1 is provided with a butt joint groove, the inner wall of the butt joint groove is provided with an internal thread, the internal thread of the butt joint groove is connected with a connecting ring 4, the end 1 can be disassembled, the phenomenon that the oil outlet valve is inconvenient to clean due to the integration of the oil outlet valve is avoided, the outer wall of the connecting ring 4 is provided with an external thread, the connecting ring 4 is fixedly connected with the outer wall of the connector 3, the arrangement of the external thread can facilitate the connecting ring 4 to be connected with the end 1, the phenomenon that the oil outlet valve cannot work due to the blockage of one oil hole 6 can be effectively avoided by arranging two oil holes 6 in the connector 3, meanwhile, the oil pollution impurities can be collected by arranging a groove 207 on the valve plug 206, the impurities can be prevented from being blocked at the oil hole 6, when the oil outlet valve works, the valve plug 206 can be pushed by diesel oil to move downwards, the diesel oil flows out from the oil holes 6, the structure is simple, and the phenomenon of the blockage of the oil outlet valve can be effectively avoided, the practicality of delivery valve has been improved.

In the actual operation in-process, when this device uses, through setting up two oilholes 6 in the inside of connector 3, can effectively avoid 6 jam of an oilhole to lead to the phenomenon of the unable work of delivery valve, set up recess 207 simultaneously on valve plug 206 and can collect greasy dirt impurity, avoid impurity jam in 6 departments of oilhole, when delivery valve during operation, its valve plug 206 can be promoted downstream by diesel oil, its diesel oil flows out from 6 oilholes of oil, moreover, the steam generator is simple in structure, can effectively avoid the phenomenon of delivery valve jam, the practicality of delivery valve has been improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides an oil outlet valve for diesel engine injection pump, includes end (1), case mechanism (2) and connector (3), its characterized in that: the valve core mechanism (2) is arranged in the end head (1), and the end head (1) is provided with the lower end of the residual connector (3);

the valve core mechanism (2) comprises a supporting plate (201) and an insertion hole (202), the insertion hole (202) is formed in the upper surface of the supporting plate (201), a valve rod (203) is inserted into the insertion hole (202), a limiting plate (205) is fixedly installed at the top end of the valve rod (203), a rod body of the valve rod (203) is sleeved with a spring (204), a valve plug (206) is fixedly installed on the upper surface of the limiting plate (205), and a groove (207) is formed in the upper surface of the valve plug (206);

backup pad (201) fixed mounting is in the inside of end (1), the lower extreme fixed mounting of valve rod (203) has stopper (208), oil pocket (5) have been seted up to the inside of connector (3), oilhole (6) communicate with each other with oil pocket (5), the quantity of oilhole (6) is two, its two oilhole (6) are seted up respectively at the inside left wall and the inside right wall of connector (3).

2. The delivery valve for an injection pump of a diesel engine as set forth in claim 1, wherein: the valve plug (206) is inserted into the oil cavity (5), and the size of the valve plug (206) is consistent with that of the inside of the oil cavity (5).

3. The delivery valve for an injection pump of a diesel engine as set forth in claim 1, wherein: the butt joint groove is formed in the upper end of the inner portion of the end head (1), internal threads are formed in the inner wall of the butt joint groove, and the connecting ring (4) is connected to the internal threads of the butt joint groove.

4. The delivery valve for an injection pump of a diesel engine as set forth in claim 3, wherein: the outer wall of the connecting ring (4) is provided with an external thread, and the connecting ring (4) is fixedly connected to the outer wall of the connector (3).