CN2763551Y

CN2763551Y - Carburetor with enclosed mixing gas adjusting screen

Info

Publication number: CN2763551Y
Application number: CN 200520001550
Authority: CN
Inventors: 王品强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-28
Filing date: 2005-01-28
Publication date: 2006-03-08
Anticipated expiration: 2015-01-28

Abstract

The utility model relates to a carburetor with a close type mixing gas adjusting bolt. An adjusting bolt (1) is installed on a carburetor body (2). The outer end of the adjusting bolt (1) is positioned in a cavity (23) on the outer surface of the carburetor body (2), wherein the cavity (23) is close. Therefore, the outer part of the adjusting bolt which is originally exposed outside is completely closed inside the cavity now. Users can not casually adjust the adjusting bolt, so the utility model can ensure that the mixing gas is in optimum rate when the carburetor isn't in work, fuel in engines is fully burned, the amount of exhaust gas is below legal specified value and environmental pollution is effectively prevented.

Description

Have closed mixed gas and adjust the Carburetor of screw

Technical field

The utility model relates to a kind of Carburetor, and is particularly a kind of in idling system, has the Carburetor that closed mixed gas is adjusted screw.

Background technique

Common Carburetor, as: motorcycle and general-purpose petrol engine adopt and can adjust with the idling system of Carburetor, open structure, promptly as shown in Figure 1, the outer end of the idle mixture screw 1 of Carburetor is exposed at the machine outside, adjusting screw 1 is installed on the body 2 of Carburetor, described adjustment screw 1 mainly comprises two-part: metering needle 11 and metering needle spring 12, metering needle 11 is connected with body 2 by screw thread, between body 2 outer surfaces and metering needle 11, metering needle spring 12 is set, metering needle 1 passes through threads turn like this, just can regulate the annular space area between fuel flow path 21 and the motor 22, therefore, the user is according to the use condition needs of oneself, but the mixture strength during the regulated at will engine idle, to reach own desired performance, but because such regulated at will, can become change the optimized proportion of Carburetor adjusted good idling mixed gas when dispatching from the factory, may cause the incomplete combustion of motor, the waste gas of discharging exceeds the rules and regulations value, thereby causes unnecessary environmental pollution.

Summary of the invention

The utility model provides a kind of and has had the Carburetor that closed mixed gas is adjusted screw, but has overcome the defective of idle mixture screw regulated at will in the prior art.

In order to achieve the above object, of the present utility model have a Carburetor that closed mixed gas is adjusted screw, installs on the Carburetor body and adjust screw, the outer end of adjusting screw be positioned on the described body outer surface through sealed hollow.

Like this, the part that just described adjustment screw originally was exposed to the body outside is completely enclosed within the described cavity, the user can not at will regulate the adjustment screw, thereby can guarantee the mixed gas optimization ratio of Carburetor when idle machine, guarantee the perfect combustion of motor, the waste gas of discharging is lower than the rules and regulations value, has prevented environmental pollution effectively.

Description of drawings

Fig. 1 represents the structural representation of the adjustment screw of prior art;

Fig. 2 represents that the utility model embodiment adjusts the structural representation of screw.

Embodiment

With reference to accompanying drawing 2, will be described in detail embodiment of the present utility model.

Carburetor with closed mixed gas adjustment screw of the present utility model, on Carburetor body 2, install and adjust screw 1, described adjustment screw 1 mainly comprises two-part: metering needle 11 and metering needle spring 12, between body 2 outer surfaces and metering needle 11, metering needle spring 12 is set, body 2 outer surfaces stretch out in the position of described adjustment screw 1, form a cavity 23, good in the outer end of described cavity (open-mouth end) with plug 24 shutoff, and described plug 24 forms a fixed connection with described cavity wall, that is: after plug is loaded onto, just can not take off from described cavity 23 again, when producing product, regulate to adjust and add upper plug head behind the screw 1 and get final product.Like this, the part that just described adjustment screw 1 originally was exposed to body 2 outsides is completely enclosed within the described cavity 23, and the user can not at will regulate and adjust screw 1, thereby can guarantee the mixed gas optimization ratio of Carburetor when idle machine.

Fixedlying connected between described plug 24 and the described cavity inner wall, outer wall that can be by plug 24 and described cavity inner wall form to closely cooperate to be realized, described plug 24 can be a concave end bowl-shape as described in Figure 1, it also can be column, its material can be a metal, also can be nonmetal.The shape of cross section of described plug 24 and cavity 23 can be any, as circle, and polygonal (as: pentagon, Hexagon), squares etc. are as long as the two can match.

Described cavity also can adopt the plug of other modes to carry out shutoff, such as: utilize sealer to be used as plug, described sealer can be silica gel or silicon sealant.

The body outer surface also can cave inward in the position of described adjustment screw, forms cavity.

Claims

1, a kind of have a Carburetor that closed mixed gas is adjusted screw, goes up to install at Carburetor body (2) and adjust screw (1), it is characterized in that, the outer end of adjusting screw (1) be positioned on described body (1) outer surface through sealed hollow (23).

2, the Carburetor with closed mixed gas adjustment screw according to claim 1 is characterized in that described cavity (23) is the enclosed cavity of open-mouth end with plug (24) shutoff.

3, according to claim 2 have a Carburetor that closed mixed gas is adjusted screw, it is characterized in that, and be to fixedly connected between described plug (24) and the described cavity inner wall.

4, according to claim 3 have a Carburetor that closed mixed gas is adjusted screw, it is characterized in that, describedly fixedly connectedly is meant that the outer wall of plug (24) and the formation of described cavity inner wall closely cooperate.

5, the Carburetor with closed mixed gas adjustment screw according to claim 4 is characterized in that described plug (24) is bowl-shape or column.

6, the Carburetor with closed mixed gas adjustment screw according to claim 5 is characterized in that described plug (24) is metal or nonmetallic.

7, the Carburetor with closed mixed gas adjustment screw according to claim 6 is characterized in that plug (24) is a sealer.

8, the Carburetor with closed mixed gas adjustment screw according to claim 7 is characterized in that described sealer is silica gel or silicon sealant.

9, according to the arbitrary described Carburetor that closed mixed gas is adjusted screw that has of claim 1 to 8, it is characterized in that described cavity (23) is the cavity that body (2) outer surface stretches out in the position of described adjustment screw (1) and forms.

10, according to the arbitrary described Carburetor that closed mixed gas is adjusted screw that has of claim 1 to 8, it is characterized in that described cavity (23) is the cavity that body (2) outer surface caves inward in the position of described adjustment screw (1) and forms.