CN217681919U

CN217681919U - PCV valve

Info

Publication number: CN217681919U
Application number: CN202221491571.6U
Authority: CN
Inventors: 向卫东
Original assignee: Sichuan Binda Valve Co ltd
Current assignee: Sichuan Binda Valve Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-10-28
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to the technical field of engine, a PCV valve is disclosed, including valve body and intake pipe, intake pipe integral connection is in the one end of valve body, and the inside intercommunication of intake pipe and valve body, and the other end integral connection of valve body has the outlet duct, and the inside intercommunication of outlet duct and valve body, and the terminal surface subsides of intake pipe have put the rubber gasket, and the even piece that is provided with in a side surface outer lane of rubber gasket supports the piece, and supports the piece and be provided with four, and the inner circle of rubber gasket is provided with the rubber filter screen, supports the intake pipe of piece one side and has seted up inside to the groove. The utility model discloses technical scheme is through being provided with the rubber filter screen at rubber gasket inner circle, and the rubber gasket can utilize the rubber filter screen to filter the pollutant in the blowby gas when acting as the sealing washer use, when needs are to PCV valve maintenance, only need take off the rubber gasket and carry out simple washing after pulling down, then more renewedly can continue to use, more thoroughly and the cleaning speed of pollutant has reduced cost of maintenance soon.

Description

PCV valve

Technical Field

The utility model relates to the technical field of engines, specifically a PCV valve.

Background

The PCV valve consists of a valve body, a valve cover and a spring, is not decomposable, and has the main functions of: the air in the crankcase is guided into the air intake manifold through the PCV valve, and a small amount of air directly enters the air intake manifold through the PCV valve by the air filter, so that the phenomena of icing, insufficient combustion, poor emission and the like at the throttle valve are avoided, the blow-by gas is prevented from entering the atmosphere, and meanwhile, the engine oil is prevented from deteriorating.

However, the contaminants in the blow-by gas are deposited around the inner structure of the PCV valve, and are easily blocked, so that the contaminated gas reversely flows into the air filter to contaminate the filter element, the filtering capability of the air filter is reduced, the oil consumption is increased, meanwhile, the abrasion of the engine is increased, and even the engine is damaged, and therefore, the air filter needs to be cleaned and maintained regularly.

When the technical scheme is realized, at least the following defects exist: when cleaning and maintaining, the PCV valve needs to be detached and then cleaned by using a cleaning agent, the cleaning agent has a slow dissolving speed to pollutants, even the pollutants cannot be dissolved completely, the maintenance period can be prolonged, and the maintenance cost is increased. Therefore, we propose a PCV valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCV valve, through setting up the rubber gasket and arranging the mode of supporting the inslot in through supporting the piece card in attached in the surface of intake pipe, and be provided with the rubber filter screen in rubber gasket inner circle, the rubber gasket is when acting as the sealing washer use, can utilize the pollutant of rubber filter screen in to the scurrying gas to filter, when needs are to PCV valve maintenance, only need take off the rubber gasket and carry out simple washing after pulling down, then more renew can continue to use, wash more thoroughly and the clearance speed of pollutant has reduced cost of maintenance soon, the problem of proposing in the background art has been solved.

In order to achieve the above purpose, the utility model provides a following technical scheme: a PCV valve comprises a valve body and an air inlet pipe, wherein the air inlet pipe is integrally connected to one end of the valve body and communicated with the interior of the valve body; the rubber gaskets are attached to the surfaces of the tail ends of the air inlet pipes, the outer rings of the surfaces of one sides of the rubber gaskets are uniformly provided with four abutting blocks, and the inner rings of the rubber gaskets are provided with rubber filter screens; the air inlet pipe on one side of the abutting blocks is internally provided with four abutting grooves, and the abutting blocks abut against the inside of the abutting grooves.

As an alternative scheme of this application technical scheme, the terminal outer lane of outlet duct encircles and is provided with the fixture block, and the external diameter of fixture block is greater than the external diameter of outlet duct.

As an alternative scheme of this application technical scheme, the annular has been seted up to the middle part outer lane of outlet duct, and the setting that the annular encircles is at the outer lane of outlet duct.

As an alternative scheme of the technical scheme, the hexagonal block is arranged on the surface of the outer ring of the valve body and is a regular hexagon.

As an alternative scheme of the technical scheme, the outer ring surface of the air inlet pipe is provided with threads, and the threads are uniformly distributed on the outer surface of the air inlet pipe.

As an optional scheme of the technical scheme, the rubber filter screen and the abutting block are connected with the rubber gasket to form an integral structure.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this application technical scheme is attached in the surface of intake pipe through setting up the rubber gasket and arranging the mode of supporting the inslot in through supporting the piece card, and be provided with the rubber filter screen at the rubber gasket inner circle, the rubber gasket is when acting as the sealing washer use, can utilize the rubber filter screen to filter the pollutant in the scurrying gas, when needs are to PCV valve maintenance, only need take off the rubber gasket and carry out simple washing after pulling down, then more renew can continue to use, wash more thoroughly and the cleaning speed of pollutant has reduced cost of maintenance soon.

2. This application technical scheme is provided with the fixture block through the terminal outer lane of making the outlet duct encircles, and the external diameter of fixture block is greater than the external diameter of outlet duct, when putting the hose cover in the outlet duct outer lane, the effect of fixture block can have the effect that the antiskid is taken off to the connection of hose.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic diagram of the overall structure of the PCV valve of the present invention;

FIG. 2 is a schematic view of a rubber gasket connection structure of the PCV valve of the invention;

FIG. 3 is a schematic cross-sectional end structure view of an intake pipe of the PCV valve of the invention;

fig. 4 is a schematic diagram of a rubber gasket structure of the PCV valve of the present invention.

In the figure: 1. a valve body; 2. an air inlet pipe; 3. a hexagonal block; 4. a thread; 5. an air outlet pipe; 6. a ring groove; 7. a clamping block; 8. a rubber gasket; 9. a resisting block; 10. a butting groove; 11. a rubber filter screen.

Detailed Description

Referring to fig. 1-4, the present invention provides a technical solution: a PCV valve comprises a valve body 1 and an air inlet pipe 2, wherein the air inlet pipe 2 is integrally connected to one end of the valve body 1, the air inlet pipe 2 is communicated with the interior of the valve body 1, the other end of the valve body 1 is integrally connected with an air outlet pipe 5, and the air outlet pipe 5 is communicated with the interior of the valve body 1;

the rubber gasket 8 is attached to the surface of the tail end of the air inlet pipe 2, the outer ring of the surface of one side of the rubber gasket 8 is uniformly provided with four abutting blocks 9, and the inner ring of the rubber gasket 8 is provided with a rubber filter screen 11;

the air inlet pipe 2 on one side of the abutting block 9 is internally provided with four abutting grooves 10, and the abutting block 9 abuts against the inside of the abutting grooves 10.

In this kind of technical scheme, through setting up rubber gasket 8 and being attached in the surface of intake pipe 2 through the mode of propping piece 9 card and arranging in to propping groove 10, and be provided with rubber screen 11 in rubber gasket 8 inner circle, rubber gasket 8 is when acting as the sealing washer use, can utilize rubber screen 11 to filter the pollutant in the blowby gas, when needs are to PCV valve maintenance, only need take off rubber gasket 8 after pulling down and carry out simple washing, then more renew can continue to use, the washing to the pollutant is more thorough and the cleaning speed has reduced cost of maintenance soon.

In some technical solutions, a clamping block 7 is disposed around an outer ring of a tail end of the outlet pipe 5, and an outer diameter of the clamping block 7 is larger than an outer diameter of the outlet pipe 5.

In the technical scheme, the clamping block 7 is arranged on the outer ring of the tail end of the air outlet pipe 5 in a surrounding mode, the outer diameter of the clamping block 7 is larger than that of the air outlet pipe 5, and when the hose is sleeved on the outer ring of the air outlet pipe 5, the clamping block 7 can play a role in preventing the hose from slipping.

In some technical solutions, a ring groove 6 is formed in an outer ring of the middle portion of the outlet pipe 5, and the ring groove 6 is arranged on the outer ring of the outlet pipe 5 in a surrounding manner.

In the technical scheme, the annular groove 6 formed in the surface of the outer ring of the air outlet pipe 5 in a surrounding mode can lock the iron hoop, and the hose can be locked more firmly.

In some technical schemes, a hexagonal block 3 is arranged on the surface of the outer ring of the valve body 1, and the hexagonal block 3 is a regular hexagon.

In this kind of technical scheme, through the setting of hexagonal piece 3, can conveniently utilize box spanner to install and dismantle valve body 1.

In some technical schemes, the outer ring surface of the air inlet pipe 2 is provided with threads 4, and the threads 4 are uniformly distributed on the outer surface of the air inlet pipe 2.

In this solution, the purpose of the connection of the inlet pipe 2 to the crankcase can be achieved by the provision of the thread 4.

In some technical schemes, the rubber filter screen 11 and the supporting block 9 are connected with the rubber gasket 8 to form an integral structure.

In this kind of technical scheme, through the structure of whole connection, guarantee the bulk strength of rubber gasket 8.

When the air inlet valve works, after the rubber gasket 8 is attached to the tail end of the air inlet pipe 2, the abutting block 9 on one side of the air inlet pipe is clamped and abutted in the abutting groove 10, then the air inlet pipe 2 is screwed into a joint of a crankcase through the threads 4 of the outer ring of the air inlet pipe 2, the air inlet pipe is screwed and fixed through the hexagonal block 3 by using a wrench, then the hose connected with the air inlet manifold is sleeved on the outer ring of the air outlet pipe 5, the hose is sleeved on the outer ring of the hose by using an iron hoop and clamped in the annular groove 6, the hose is locked, in the using and working process of the valve body 1, the rubber filter screen 11 can block and filter more impurities in blow-by gas and keep the impurities on the surface of the rubber filter screen 11, when the impurities on the surface of the rubber filter screen 11 are too much adsorbed, the valve body 1 is only required to be detached, the rubber gasket 8 is simply cleaned, and then the rubber gasket 8 is replaced by a new rubber gasket 8, and the air inlet valve can be installed and used again.

Claims

1. A PCV valve includes a valve body (1) and an intake pipe (2), characterized in that: the air inlet pipe (2) is integrally connected to one end of the valve body (1), the air inlet pipe (2) is communicated with the interior of the valve body (1), the other end of the valve body (1) is integrally connected with an air outlet pipe (5), and the air outlet pipe (5) is communicated with the interior of the valve body (1);

the rubber gaskets (8) are attached to the surface of the tail end of the air inlet pipe (2), the outer ring of the surface of one side of each rubber gasket (8) is uniformly provided with four abutting blocks (9), and the inner ring of each rubber gasket (8) is provided with a rubber filter screen (11);

the air inlet pipe (2) on one side of the abutting blocks (9) is internally provided with four abutting grooves (10), and the abutting blocks (9) abut against the inside of the abutting grooves (10).

2. The PCV valve according to claim 1, wherein: the outer ring of the tail end of the air outlet pipe (5) is provided with a clamping block (7) in a surrounding mode, and the outer diameter of the clamping block (7) is larger than that of the air outlet pipe (5).

3. The PCV valve according to claim 1, wherein: and an annular groove (6) is formed in the outer ring of the middle part of the air outlet pipe (5), and the annular groove (6) is arranged on the outer ring of the air outlet pipe (5) in a surrounding mode.

4. The PCV valve according to claim 1, characterized in that: the hexagonal block (3) is arranged on the surface of the outer ring of the valve body (1), and the hexagonal block (3) is in a regular hexagon shape.

5. The PCV valve according to claim 1, characterized in that: the surface of the outer ring of the air inlet pipe (2) is provided with threads (4), and the threads (4) are uniformly distributed on the outer surface of the air inlet pipe (2).

6. The PCV valve according to claim 1, characterized in that: the rubber filter screen (11) and the abutting block (9) are connected with the rubber gasket (8) to form an integral structure.