CN201034033Y

CN201034033Y - Secondary gulp valve

Info

Publication number: CN201034033Y
Application number: CNU2007201815359U
Authority: CN
Inventors: 林森
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-18
Filing date: 2007-10-18
Publication date: 2008-03-12
Anticipated expiration: 2017-10-18

Abstract

The utility model discloses a secondary gas supplying valve, comprising a carburetor connector, a gas supplying valve and a connecting hose, wherein the carburetor connector is provided with an integrated gas supplying valve installation base connected with the carburetor connector through a negative pressure hole; a air inlet of the gas supplying valve is provided with an inlet pipe; a gas supplying port is connected with a gas supplying hole of an engine through a heat-resisting rubber connecting hose and an iron siphon. The utility model has the advantages of simple structure, easy assembly, steady performance and low cost.

Description

Secondary air-supplementing valve

Technical field

The utility model relates to a kind of motorcycle accessories, exactly is the secondary air-supplementing valve of motorcycle engine.

Background technique

At present, country has issued Europe II in line with international standards, Europe III automotive emission standard, because domestic motorcycle generally adopts the mechanical type Carburetor, can't reach Europe II emission standard, therefore need to adopt secondary air-supplementing valve to reduce the discharge amount of CO, just in the engine exhaust port position, process a tonifying Qi hole, when exhaust valve is opened when the incomplete gas of former combustion chambers burn is about to discharge, through secondary air-supplementing valve supply fresh air, allow the gas of incomplete combustion in the secondary combustion of exhaust valve position secondary air compensating, reduce CO significantly and reach Europe II emission standard.But there is following defective (as shown in Figure 1 and Figure 2) in existing secondary air-supplementing valve:

1) since on motor fixed installation position, therefore need be suspended under the vehicle frame assembly process complexity with retort stand;

2) need to be connected with iron bend pipe 3 with super heated rubber connecting tube 2 between secondary air-supplementing valve 1 and the motor tonifying Qi hole, wherein super heated rubber connecting tube 2 is about 180mm and need be the U font, and cost is higher;

3) suction tude 4 of secondary air-supplementing valve is for being about the 7 font rubber pipes of 420mm, and same cost is higher;

4) need between the negative pressure interface 5 on secondary air-supplementing valve and the Carburetor interface to be connected by long rubber pipe 6, not only cost is higher and assembly process is complicated, the rate of fault height.

The model utility content

At the deficiency that prior art exists, the purpose of this utility model be to provide a kind of simple in structure, be easy to assembling and stable performance, lower-cost secondary air-supplementing valve.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of secondary air-supplementing valve, comprise Carburetor interface, aeration valve and connecting tube, the aeration valve fitting seat that has integral type on the described Carburetor interface, be connected by negative pressure hole between this aeration valve fitting seat and the Carburetor interface, the suction port of aeration valve is provided with suction tude, and gas supplementing opening is connected with motor tonifying Qi hole with the iron bend pipe by the super heated rubber connecting tube.

Described aeration valve is followed successively by tonifying Qi flap, valve block chamber and air control room from top to bottom, and wherein the side in air control room is provided with air-inlet cover, and a check valve sheet is housed in the middle of the valve block chamber, and push rod, spring, diaphragm and serum cap are equipped with in the inside, air control room.

Described aeration valve fitting seat is positioned at the outside of Carburetor interface and opening up, and negative pressure hole is opened on the sidewall that both are connected.

Described suction tude and super heated rubber connecting tube are straight rubber pipe.

Described iron bend pipe is arranged backwards.

The utility model is formed with fitting seat on the Carburetor interface, aeration valve is directly installed on the Carburetor interface, the good secondary air-supplementing valve of civilian dress when installing the Carburetor interface, can save original retort stand and negative pressure rubber linking tube, not only saved cost, and reduced assembly process and installation time, improved manufacturing efficiency greatly.In addition, suction tude and super heated rubber connecting tube become straight rubber pipe by original special pipe, and length also shortens greatly, has further reduced cost.Have simple in structure, be easy to beneficial effects such as assembling, stable performance, cost be lower.

Description of drawings

Fig. 1 is the mounting structure schematic representation of existing secondary air-supplementing valve;

Fig. 2 is the structural representation of existing secondary air-supplementing valve Carburetor interface;

Fig. 3 is a mounting structure schematic representation of the present utility model;

Fig. 4 is a decomposition texture schematic representation of the present utility model;

Fig. 5 is an overall structure schematic representation of the present utility model;

Fig. 6 is the structural representation of the utility model Carburetor interface;

Fig. 7 is the cross-sectional schematic of the utility model Carburetor interface.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of reference numerals is as follows:

1. secondary air-supplementing valve 2. super heated rubber connecting tubes

3. iron bend pipe 4. suction tude

5. negative pressure interface 6. rubber pipes

11. Carburetor interface 12. aeration valves

13. aeration valve fitting seat 14. negative pressure holes

15. tonifying Qi flap valve block chambers 16.

17. air control room 18. air-inlet covers

19. suction tude 20. super heated rubber connecting tubes

21. iron bend pipe

Extremely shown in Figure 7 as Fig. 3, this secondary air-supplementing valve is mainly by Carburetor interface 11, aeration valve 12 and connecting tube are formed, Carburetor interface 11 is connected on the motor, its outside has the aeration valve fitting seat 13 of integral type, this aeration valve fitting seat opening up, with be connected by negative pressure hole 14 between the Carburetor interface, the motor vacuum magnitude all thus the hole pass to aeration valve, aeration valve is followed successively by tonifying Qi flap 15 from top to bottom, valve block chamber 16 and air control room 17, wherein the side in air control room is provided with air-inlet cover 18, in the middle of the valve block chamber 16 check valve sheet is housed and controls the air one-way flow, push rod is equipped with in 17 the insides, air control room, spring, diaphragm and serum cap, control the flow of supply motor tonifying Qi hole air by the size of negative pressure, the suction port of aeration valve connects air-strainer by suction tude 19, gas supplementing opening is connected with motor tonifying Qi hole with iron bend pipe 21 by super heated rubber connecting tube 20, suction tude 19 is for being about the straight rubber pipe of 200mm, super heated rubber connecting tube 20 is for being about the straight rubber pipe of 30mm, and iron bend pipe 21 is arranged backwards.This product is mainly used in when tonifying Qi control air mass flow and air folk prescription to flowing.

The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the utility model or akin technological scheme is all within its protection domain.

Claims

1. secondary air-supplementing valve, comprise Carburetor interface, aeration valve and connecting tube, it is characterized in that, the aeration valve fitting seat that has integral type on the described Carburetor interface, be connected by negative pressure hole between this aeration valve fitting seat and the Carburetor interface, the suction port of aeration valve is provided with suction tude, and gas supplementing opening is connected with motor tonifying Qi hole with the iron bend pipe by the super heated rubber connecting tube.

2. secondary air-supplementing valve according to claim 1, it is characterized in that, described aeration valve is followed successively by tonifying Qi flap, valve block chamber and air control room from top to bottom, wherein the side in air control room is provided with air-inlet cover, a check valve sheet is housed in the middle of the valve block chamber, and push rod, spring, diaphragm and serum cap are equipped with in the inside, air control room.

3. secondary air-supplementing valve according to claim 1 is characterized in that, described aeration valve fitting seat is positioned at the outside of Carburetor interface and opening up, and negative pressure hole is opened on the sidewall that both are connected.

4. secondary air-supplementing valve according to claim 1 is characterized in that, described suction tude and super heated rubber connecting tube are straight rubber pipe.

5. secondary air-supplementing valve according to claim 1 is characterized in that, described iron bend pipe is arranged backwards.