CN2628732Y

CN2628732Y - Universal gasoline engine starting decompressing apparatus

Info

Publication number: CN2628732Y
Application number: CN 03234807
Authority: CN
Inventors: 杜江; 龙运翔
Original assignee: XIANGLING AUTOMOBILE FITTINGS
Current assignee: CHONGQING XIANGLING AUTO PARTS CO., LTD.
Priority date: 2003-06-03
Filing date: 2003-06-03
Publication date: 2004-07-28
Anticipated expiration: 2013-06-03

Abstract

The utility model involves a gasoline engine fittings, in particular to a starting and releasing pressure device used for the general gasoline engine, which includes a camshaft (6), a centrifugal arm (4) and a reset spring (1) positioned between the camshaft (6) and centrifugal arm (4), a dialing fork (12) is fixed on the camshaft by the rotation of a shaft (11), the utility model is characterized in that a straight tank (10) that is matched with a locating pin (3) is provided on a centrifugal arm, the mass of the centrifugal arm upside is bigger than the centrifugal arm downside, a dialing block (8) of a dialing fork is snapped in a snapping opening (7) of the centrifugal arm, a block (9) that pushes and opens the air valve of the gasoline engine is provided on the dialing fork. The utility model has the advantages that the structure is simple, the machining requirement is low, a period of work is shorter, work is stable and instant, etc.

Description

General gasoline engines starts pressure relief device

One, technical field

The utility model relates to a kind of general gasoline engines accessory, and particularly general gasoline engines starts pressure relief device.

Two, technical background

General gasoline engines is generally before startup, its valve is an open mode, behind gasoline engine starting, its gas port need be closed storage and be pressed, its startup pressure relief device included camshaft, Returnning spring, the rotating shaft of the centrifugal pivoted arm of rotational fixation in the past, shift fork, it is centrifugal pivoted arm to be rotated around the axis drive shift fork to rotate by centrifugal force to make valve-closing.Its deficiency is that its centrifugal pivoted arm is complicated around the axle circular motion, and processing is difficult for, and working stroke is bigger, and job insecurity is untimely.

Three, technology contents

The purpose of this utility model designs a kind of simple in structure exactly, easily processing, working stability, instant general gasoline engines starts pressure relief device, and it includes camshaft, the Returnning spring of centrifuge arm and between, fork, be is characterized in that on camshaft by the axle rotational fixation: the straight trough that cooperates with locating stud is arranged on centrifuge arm, and the centrifuge arm upper end is heavier than lower end quality, pulling block on the fork is stuck in the bayonet socket of arm heart arm, and the jacking block that backs down the petrol engine valve is arranged on the fork.

The utility model is behind gasoline engine starting, because the rotation of camshaft, centrifuge arm slides to upper edge straight trough direction under action of centrifugal force, the shifting block that bayonet socket on the centrifuge arm drives on the shift fork sways, and the top on its shift fork is backed down gas port and made valve-closing, because centrifuge arm is along the straight trough moving linearly, so the centrifuge arm structure is simpler, processing request is lower, and working stroke is shorter, working stability, instant.

Four, description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is that A-A is to side view.

Among the figure: 1, Returnning spring, 2, rivet, 3, locating stud, 4, centrifuge arm, 5, balancing weight, 6, camshaft, 7, bayonet socket, 8, shifting block, 9, jacking block, 10, straight trough, 11, axle, 12, shift fork.

Five, embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1, the utility model includes camshaft 6, the Returnning spring 1 of centrifuge arm 4 and between, fork 12 by axle (11) rotational fixation on camshaft, as shown in Figure 2, it is characterized in that: the straight trough 10 that cooperates with locating stud 3 is arranged on centrifuge arm, and the centrifuge arm upper end is heavier than lower end quality, pulling block 8 on the fork is stuck in the bayonet socket 7 of arm heart arm, and the jacking block 9 that backs down the petrol engine valve is arranged on the fork; Can intrinsic balancing weight 5 in the upper end of centrifuge arm, with realize the centrifuge arm upper end than the lower end heavy and weight increase and decrease balancing weight as required.

Claims

1, a kind of general gasoline engines starts pressure relief device, include camshaft (6), the Returnning spring (1) of centrifuge arm (4) and between, fork (12) by axle (11) rotational fixation on camshaft, it is characterized in that: the straight trough (10) that cooperates with locating stud (3) is arranged on centrifuge arm, the centrifuge arm upper end is heavier than lower end quality, and the pulling block on the fork (8) is stuck in the bayonet socket (7) of arm heart arm, and the jacking block (9) that backs down the petrol engine valve is arranged on the fork.

2, general gasoline engines as claimed in claim 1 starts pressure relief device, it is characterized in that: at the intrinsic balancing weight in the upper end of centrifuge arm (5).