CN210106274U

CN210106274U - Novel reflux valve integrated jet flow three-way pipe

Info

Publication number: CN210106274U
Application number: CN201920670922.1U
Authority: CN
Inventors: 池长风
Original assignee: CRQ FUEL PUMP (CHINA) Co Ltd
Current assignee: CRQ FUEL PUMP (CHINA) Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-21
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to an integrated novel efflux three-way pipe of reflux valve, including the efflux three-way pipe, efflux three-way pipe one end is the oil inlet, and the other end is first efflux export, the efflux three-way pipe is provided with the second efflux export between oil inlet and first efflux export, first jet nozzle is installed in first efflux exit, second jet nozzle is installed in second efflux exit, the blanking cover is installed to efflux three-way pipe one side, its characterized in that: the one end that the efflux three-way pipe set up the oil inlet relatively is being provided with novel reflux valve near oil inlet department, novel reflux valve is including spacing pipe, spacing pipe one end is provided with the diaphragm structure against the current that can prevent the fuel backward flow, the beneficial effects of the utility model are that: set up the reflux valve into spacing pipe and circular diaphragm body, the assembly is convenient and convenient to use, has also reduced the manufacturing cost of enterprise simultaneously.

Description

Novel reflux valve integrated jet flow three-way pipe

Technical Field

The utility model relates to a fuel pump field, concretely relates to efflux three-way pipe of integrated novel reflux valve.

Background

Along with the improvement of the technology, the jet pump is generally used for an electric fuel pump assembly, and the jet pump can enable oil liquid in the auxiliary oil tank to be always in a full oil state when the oil level of an automobile is low, so that the jet pump can be ensured to be quickly started under the condition that the oil in the oil tank is insufficient. Simultaneously the jet pump forms the effect that the interior fuel of negative pressure back oil tank flows into the bellytank and can play the cooling electric fuel pump, improve oil pump life, present fuel pump assembly, take the product of oily bellytank siphon structure, after stopping flame-out, the oil pipe of connecting the bellytank can produce the siphon effect, fuel siphon to the bellytank with the main fuel tank, it is not enough to lead to the main fuel tank fuel pump to supply, use independent check valve to prevent against the current mostly at present stage, this kind of check valve is by the spring, the case, the valve frame is constituteed, assembly process is many and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to solve the above-mentioned deficiencies of the prior art,

a jet flow three-way pipe integrated with a novel reflux valve is provided.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an integrated novel efflux three-way pipe of reflux valve, including the efflux three-way pipe, efflux three-way pipe one end is the oil inlet, and the other end is first efflux export, the efflux three-way pipe is provided with the second efflux export between oil inlet and first efflux export, first efflux nozzle is installed in first efflux exit, second efflux nozzle is installed in second efflux exit, blanking cover, its characterized in that are installed to efflux three-way pipe one side: the novel reverse flow valve is arranged at the position close to the oil inlet at the end, provided with the oil inlet, of the jet three-way pipe, the novel reverse flow valve comprises a limiting pipe, and a reverse flow membrane structure capable of preventing fuel oil from flowing back is arranged at one end of the limiting pipe.

Adopt above-mentioned technical scheme, traditional efflux three-way pipe adopts independent check valve to prevent against the current mostly, and this kind of check valve comprises spring, case, valve frame, and assembly process is many and the cost is higher, the utility model discloses set up the reflux valve into the diaphragm and will be against the current the diaphragm spacing in the spacing pipe of oil inlet department, realize preventing against the current through this kind of structure, not only assemble simply and manufacturing procedure is few, greatly reduced enterprise manufacturing cost.

The jet three-way pipe integrated with the novel reflux valve can be further set as follows: the countercurrent membrane structure comprises a circular membrane body made of fluorosilicone rubber materials, an overflowing surface is arranged in the middle of the circular membrane body and forms an overflowing cutting seam through a membrane cutting process, a limiting convex block which is arranged oppositely is arranged at the oil inlet, one end of the circular membrane body abuts against the other end of the limiting convex block and abuts against a limiting pipe, and the other end of the limiting pipe abuts against the oil inlet through a limiting structure.

By adopting the technical scheme, through using the circular diaphragm body made of the fluorosilicone adhesive material, one end of the circular diaphragm body is abutted to the other end of the oil inlet through the limiting lug and limited by the limiting pipe, the limiting pipe is abutted to the other end of the circular diaphragm body relatively connected with the oil inlet through the limiting structure, and the circular diaphragm body is prevented from being offset or loosened due to the displacement of the limiting pipe.

The jet three-way pipe integrated with the novel reflux valve can be further set as follows: the limiting structure comprises a limiting lug arranged at one end, far away from the circular diaphragm body, of a limiting pipe, the oil inlet is provided with a first limiting ring matched with the limiting lug, and the outer wall of the middle of the limiting pipe is provided with a second limiting ring.

By adopting the technical scheme, the first limiting ring is arranged at the oil inlet, the limiting pipe is provided with the limiting lug, the limiting lug enables the limiting pipe to be limited at the first limiting ring after being assembled at the oil inlet, and the second limiting ring arranged on the limiting pipe further enhances the limiting effect.

The jet three-way pipe integrated with the novel reflux valve can be further set as follows: the overflowing cutting seam is in a straight shape.

Adopt above-mentioned technical scheme, overflow the joint-cutting not only can be a style of calligraphy, also can be the cross or separate the excessive flow face for the joint-cutting of a plurality of equal parts number area, will overflow the joint-cutting and set up to a style of calligraphy or other shapes that run through whole excessive flow face and then can promote the efficiency effect of overflowing to the biggest, if the joint-cutting length is the less then the ability of overflowing is worse more but prevent the effect of flowing against the current then better, the utility model discloses the length that will overflow the joint-cutting sets up to equal with excessive flow face diameter.

The utility model has the advantages that: set up the reflux valve into spacing pipe and circular diaphragm body, the assembly is convenient and convenient to use, has also reduced the manufacturing cost of enterprise simultaneously.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a top view of the circular diaphragm body according to the embodiment of the present invention.

Fig. 3 is a schematic sectional view taken along the line a in fig. 2.

Detailed Description

Referring to fig. 1-3: a jet flow three-way pipe integrated with a novel reverse flow valve comprises a jet flow three-way pipe 1, one end of the jet flow three-way pipe 1 is an oil inlet 11, the other end of the jet flow three-way pipe is a first jet flow outlet 12, a second jet flow outlet 13 is arranged between the oil inlet 11 and the first jet flow outlet 12 of the jet flow three-way pipe 1, a first jet flow nozzle 14 is arranged at the first jet flow outlet 12, a second jet flow nozzle 15 is arranged at the second jet flow outlet 13, a plugging cover 16 is arranged at one side of the jet flow three-way pipe 1, the novel reverse flow valve is arranged at the position close to the oil inlet 11 and opposite to the end of the oil inlet 11 of the jet flow three-way pipe 1, the novel reverse flow valve comprises a limiting pipe 2, one end of the limiting pipe 2 is provided with a reverse flow membrane structure capable of preventing fuel oil from flowing back, the reverse flow membrane structure comprises a circular membrane body 3 made of fluorine silicon, the oil inlet 11 is provided with the spacing lug 111 of establishing relatively, and 3 one end butt of circular diaphragm body offsets in the spacing lug 111 other end and spacing pipe 2, offsets through limit structure between the spacing pipe 2 other end and the oil inlet 11, and limit structure keeps away from the spacing lug 21 that 3 one end of circular diaphragm body set up including spacing pipe 2, and the oil inlet 11 is equipped with the first spacing ring 112 with spacing lug 21 looks adaptation, and the outer wall at spacing pipe 2 middle part is equipped with second spacing ring 22.

Claims

1. The utility model provides an integrated novel efflux three-way pipe of reflux valve, including the efflux three-way pipe, efflux three-way pipe one end is the oil inlet, and the other end is first efflux export, the efflux three-way pipe is provided with the second efflux export between oil inlet and first efflux export, first efflux nozzle is installed in first efflux exit, second efflux nozzle is installed in second efflux exit, blanking cover, its characterized in that are installed to efflux three-way pipe one side: the novel reverse flow valve is arranged at the position close to the oil inlet at the end, provided with the oil inlet, of the jet three-way pipe, the novel reverse flow valve comprises a limiting pipe, and a reverse flow membrane structure capable of preventing fuel oil from flowing back is arranged at one end of the limiting pipe.

2. The jet tee pipe integrated with the novel backflow valve according to claim 1, characterized in that: the countercurrent membrane structure comprises a circular membrane body made of fluorosilicone rubber materials, an overflowing surface is arranged in the middle of the circular membrane body and forms an overflowing cutting seam through a membrane cutting process, a limiting convex block which is arranged oppositely is arranged at the oil inlet, one end of the circular membrane body abuts against the other end of the limiting convex block and abuts against a limiting pipe, and the other end of the limiting pipe abuts against the oil inlet through a limiting structure.

3. The jet tee pipe integrated with the novel backflow valve as claimed in claim 2, wherein: the limiting structure comprises a limiting lug arranged at one end, far away from the circular diaphragm body, of a limiting pipe, the oil inlet is provided with a first limiting ring matched with the limiting lug, and the outer wall of the middle of the limiting pipe is provided with a second limiting ring.

4. The jet tee pipe integrated with the novel backflow valve as claimed in claim 3, wherein: the overflowing cutting seam is in a straight shape.