CN2743558Y

CN2743558Y - Oil valve control mechanism of universal gasoline engine

Info

Publication number: CN2743558Y
Application number: CN 200420105246
Authority: CN
Inventors: 邓典波; 王自强
Original assignee: Chongqing Zongshen Technology Development and Research Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2004-11-21
Filing date: 2004-11-21
Publication date: 2005-11-30
Anticipated expiration: 2014-11-21

Abstract

The utility model relates to a mechanism, which is on a universal gasoline engine and is used for regulating the opening of an oil valve and for controlling the opening and the closure of a choke valve of a gasoline engine. The utility model is mainly composed of a supporting rack, an oil valve regulating arm, a choke valve regulating arm which is hinged with the supporting rack, an oil throttle execution drive rack and an oil valve execution driven rack; the oil valve execution drive rack and the oil valve execution driven rack are hinged with the supporting rack through a same pin shaft. The pin shaft is sheathed with a torsion spring. A draw spring is connected between the oil throttle execution drive rack and the oil valve execution driven rack. A draw spring is connected between the oil valve execution driven rack and the oil valve regulating arm. The supporting rack is spirally connected with an oil valve regulating screw. The oil valve operating mechanism of a universal gasoline engine can regulate the opening of the oil throttles and can also control the opening and the closure of the choke valve. When the gasoline engine executes a cold start, operator just needs to complete one action of drawing an oil valve dragline to open the oil valve and close the choke valve, making the start operation of the gasoline engine convenient and simple; in addition, after the gasoline engine starts, the oil valve can still be automatically operated by the mechanism without influencing the choke valve.

Description

The general gasoline engines manipulating mechanism of oil throttle

Technical field

The utility model relates to a kind of accelerator open degree that is used to regulate on general gasoline engines, and the mechanism arrangement of control petrol engine chock plate opening and closing.

Technical background

At present on small utility gasoline engine, the mechanism that is used to regulate accelerator open degree and the opening and closing of control petrol engine chock plate is two separate mechanisms, the opening and closing of chock plate need special manually-operable, make the user feel very trouble, and when manually-operable, the operator directly pulls the chock plate regulating arm with hand, driving the chock plate rotation by choke linkage closes chock plate, the shortcoming of this kind mode is that a people is not easy operation, because the chock plate regulating arm of gasoline engine initiator handle and manipulating mechanism of oil throttle is not in same direction, the operator is difficult to finish simultaneously the action of pulling chock plate regulating arm and pulling gasoline engine initiator handle.

The model utility content

The purpose of this utility model provides a kind of general gasoline engines manipulating mechanism of oil throttle, and the manipulation of chock plate and throttle is integrated, both can regulate accelerator open degree, the opening and closing of may command petrol engine chock plate again.

General gasoline engines manipulating mechanism of oil throttle described in the utility model, comprise support, throttle adjustment arm and be hinged on chock plate regulating arm on the support, the throttle adjustment arm connects with the output shaft of petrol engine speed regulating mechanism, can rotate with this output shaft, throttle adjustment arm one end is connected with accelerator rod, and chock plate regulating arm one end is connected with choke linkage;

On support, be hinged with throttle and carry out that initiatively frame and throttle are carried out driven by same bearing pin, be set with torsion spring on this bearing pin, two arms of torsion spring act on throttle respectively and carry out on active frame and the support, throttle execution active frame and throttle are connected with extension spring between carrying out driven, this extension spring makes the upright arm of throttle on carrying out driven carry out initiatively frame one side near throttle, and carrying out initiatively at throttle, frame overcomes torsion spring power when bearing pin rotates, make throttle carry out driven with throttle execution active frame unitary rotation, throttle is carried out active frame one end and is connected with the throttle drag-line, and the other end is connected by the other end of extension spring with the throttle adjustment arm;

On throttle is carried out driven, also be provided with a upright arm, should upright arm when free state near support one side, carry out driven and under the torsion spring effect, rotate to stop throttle to carry out initiatively frame and throttle around bearing pin;

The chock plate regulating arm is provided with a upright arm, should from the through hole that support is offered, pass by upright arm, on support, be connected with the throttle adjustment screw, carry out driven when throttle and carry out initiatively frame with throttle and overcome torsion spring power and turn to when contact with the throttle adjustment screw, the throttle adjustment screw will stop driven of throttle execution to be rotated further;

Throttle is carried out the active frame and is provided with an arm, and when throttle execution active frame overcomes the rotation of torsion spring power, this arm will promote the upright arm on the chock plate regulating arm, and the chock plate regulating arm is rotated around itself and support articulating point.

Pulling throttle drag-line, driven of frame drive throttle execution overcomes the rotation of torsion spring power to make throttle carry out initiatively, carry out driven when contacting to throttle with the throttle adjustment screw, throttle is carried out driven and is stopped operating, this moment, the Carburetor throttle left to maximum, and throttle execution active frame still is rotated further, and the arm on throttle execution active frame promotes the upright arm on the chock plate regulating arm, the chock plate regulating arm is rotated, thereby carburetter choke is closed.

When loosening the throttle drag-line, throttle is carried out initiatively frame return under the torsion spring effect, and the drive throttle is carried out driven return, this moment, chock plate was opened once again, the speed regulating mechanism of petrol engine drives the rotation of throttle adjustment arm simultaneously, thereby drive the throttle on the accelerator rod pulling Carburetor, reduce accelerator open degree automatically.

Pulling or loosen the throttle drag-line makes throttle carry out initiatively frame and drives throttle and carry out driven rotation, but free adjustment Carburetor accelerator open degree is carried out driven with before the throttle adjustment screw contacts at throttle, and chock plate is with unaffected.

The utility model is owing to have this kind structure, the mechanism of petrol engine adjusted throttle and the mechanism of control chock plate open and close are integrated, both can regulate accelerator open degrees, the opening and closing of may command petrol engine chock plate again, when the cold start-up petrol engine, the operator only need finish action of pulling throttle drag-line and throttle can be opened and chock plate is closed, make the start-up operation of petrol engine convenient and simple, and throttle still can continue not influence chock plate with this institution freedom manipulation behind gasoline engine starting.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 is the structural representation of general gasoline engines manipulating mechanism of oil throttle described in the utility model;

Fig. 2 is that throttle is carried out the initiatively plan view of frame in the utility model;

Fig. 3 is that throttle is carried out driven plan view in the utility model;

Fig. 4 is that throttle shown in Figure 3 is carried out driven right elevation;

Fig. 5 is the plan view of chock plate regulating arm in the utility model;

Fig. 6 is the left view of chock plate regulating arm shown in Figure 5;

Fig. 7, Fig. 8 are the working state schematic representation of general gasoline engines manipulating mechanism of oil throttle described in the utility model.

Embodiment

Extremely shown in Figure 6 as Fig. 1, this general gasoline engines manipulating mechanism of oil throttle comprises support 4, throttle adjustment arm 9 and the chock plate regulating arm 3 that is hinged on the support 4, throttle adjustment arm 9 connects with the output shaft 11 of petrol engine speed regulating mechanism, can rotate with this output shaft 11, throttle adjustment arm 9 one ends are connected with accelerator rod 5, chock plate regulating arm 3 one ends are connected with choke linkage 2, on support 4, be hinged with throttle and carry out that initiatively frame 19 and throttle are carried out driven 13 by same bearing pin 7, be set with torsion spring on this bearing pin 7, two arms 6 of torsion spring, 8 act on throttle respectively carries out on active frame 19 and the support 4, throttle execution active frame 19 and throttle are connected with extension spring 18 between carrying out driven 13, this extension spring 18 makes the upright arm 21 of throttle on carrying out driven 13 carry out initiatively frame 19 1 sides near throttle, and carrying out initiatively at throttle, frame 19 overcomes torsion spring power when bearing pin 7 rotates, make throttle carry out driven 13 with throttle execution active frame 19 unitary rotation, throttle is carried out active frame 19 1 ends and is connected with throttle drag-line 10, and the other end is connected by the other end of extension spring 12 with throttle adjustment arm 9.

On carrying out driven 13, throttle also is provided with a upright arm 22, throttle carries out active frame 19 and driven 13 of throttle execution is somebody's turn to do upright arm 22 near support 4 one sides when free state, rotates around bearing pin 7 under the torsion spring effect to stop driven 13 of throttle execution active frame 19 and throttle execution.

Chock plate regulating arm 3 is provided with a upright arm 16, should from the through hole that support 4 is offered, pass by upright arm 16, on support 4, be connected with throttle adjustment screw 14, carry out when throttle and to carry out initiatively frame 19 with throttle for driven 13 and overcome torsion spring power and turn to throttle and carry out when contacting with throttle adjustment screw 14 for driven 13, throttle adjustment screw 14 will stop being rotated further of driven 13 of throttle execution; Also be connected with air door adjusting screw 15 with throttle adjustment screw 14 adjacents on support 4, carry out initiatively frame 19 when throttle and overcome torsion spring power and turn to when contact with air door adjusting screw 15, air door adjusting screw 15 will stop being rotated further of throttle execution active frame 19.

Throttle is carried out active frame 19 and is provided with an arm 20, and when throttle execution active frame 19 overcomes the rotation of torsion spring power, this arm 20 will promote the upright arm 16 on the chock plate regulating arm 3, and chock plate regulating arm 3 is rotated around itself and support 4 articulating points 17.

As Fig. 7, shown in Figure 8, when the cold start-up petrol engine, pulling throttle drag-line 10, frame 19 drive throttles execution overcome the rotation of torsion spring power for driven 13 to make throttle carry out initiatively, carry out when contacting with throttle adjustment screw 14 for driven 13 to throttle, throttle is carried out and is stopped operating for driven 13, throttle is carried out initiatively, and frame 19 then is rotated further, when it contacts with air door adjusting screw 15, throttle is carried out initiatively, and frame 13 stops operating, in this process, the upright arm 16 that arm 20 on the throttle execution active frame 19 promotes on the chock plate regulating arms 3 chock plate regulating arm 3 is rotated, and throttle is carried out driven 13 by 9 rotations of extension spring 12 drive throttle adjustment arms, then spur accelerator rod 5, so the time Carburetor 1 throttle open to maximum and chock plate is closed.

When loosening throttle drag-line 10, throttle is carried out initiatively frame 19 return under the torsion spring effect, and the drive throttle is carried out driven 13 return, this moment, chock plate was opened once again, the speed regulating mechanism of petrol engine drives 9 rotations of throttle adjustment arm simultaneously, thereby drive the throttle on the accelerator rod 5 pulling Carburetors 1, reduce accelerator open degree automatically.

In Gasoline Engine Working Process, pulling or loosen throttle drag-line 10 makes throttle carry out initiatively frame 19 and drives throttles and carry out driven 13 and rotate, but free adjustment Carburetor 1 accelerator open degree, carry out driven 13 with before throttle adjustment screw 14 contacts at throttle, chock plate is with unaffected.

Claims

1, general gasoline engines manipulating mechanism of oil throttle, comprise support (4), throttle adjustment arm (9) and be hinged on chock plate regulating arm (3) on the support, throttle adjustment arm (9) connects with the output shaft (11) of petrol engine speed regulating mechanism, can rotate with this output shaft, throttle adjustment arm (9) one ends are connected with accelerator rod (5), chock plate regulating arm (3) one ends are connected with choke linkage (2), it is characterized in that:

Upward be hinged with throttle at support (4) and carry out initiatively frame (19) and driven (13) of throttle execution by same bearing pin (7), be set with torsion spring on this bearing pin, two arms (6 of torsion spring, 8) acting on throttle respectively carries out on active frame (19) and the support (4), throttle execution active frame and throttle are connected with extension spring (18) between carrying out driven, this extension spring makes the upright arm (21) of throttle on carrying out driven carry out initiatively frame (19) one sides near throttle, and carrying out initiatively at throttle, frame overcomes torsion spring power when bearing pin (7) rotates, make throttle carry out driven with throttle execution active frame unitary rotation, throttle is carried out active frame one end and is connected with throttle drag-line (10), and the other end is connected by the other end of extension spring (12) with throttle adjustment arm (9);

Carry out also to be provided with a upright arm (22) on driven (13) at throttle, should upright arm when free state near support (4) one sides, frame (19) and throttle execution driven (13) rotate around bearing pin (7) under the torsion spring effect to stop throttle to carry out initiatively;

Chock plate regulating arm (3) is provided with a upright arm (16), should from the through hole that support (4) is offered, pass by upright arm, on support, be connected with throttle adjustment screw (14), carry out driven when throttle and carry out initiatively frame with throttle and overcome torsion spring power and turn to and throttle adjustment screw (14) when contact, the throttle adjustment screw will stop throttle execution driven (13) to be rotated further;

Throttle is carried out active frame (19) and is provided with an arm (20), and when throttle execution active frame overcomes the rotation of torsion spring power, this arm will promote the upright arm (16) on the chock plate regulating arm (3), and the chock plate regulating arm is rotated around itself and support (4) articulating point (17).

2, general gasoline engines manipulating mechanism of oil throttle according to claim 1, it is characterized in that: go up and throttle adjustment screw (14) adjacent is connected with air door adjusting screw (15) at support (4), carry out initiatively frame (19) when throttle and overcome torsion spring power and turn to and air door adjusting screw (15) when contact, the air door adjusting screw will stop throttle execution active frame (19) to be rotated further.