Automatic adjusting mechanism for air door

Abstract

The utility model provides an automatic air door adjusting mechanism which comprises a shifting fork rotationally connected to a gasoline engine body, the shifting fork rotates and controls a choke valve shaft to rotate through a connecting structure, the automatic air door adjusting mechanism further comprises a driving piece, the driving piece drives the shifting fork to rotate, the effect of automatically adjusting the opening degree of an air door is achieved, and operation is simpler and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gasoline engine, in particular to a kind of air door automatic regulating mechanism. BACKGROUND

[0002] At present, the Chinese patent with the authorization announcement No.CN202065089U discloses a kind of general gasoline engine carburetor speed regulating device, it is installed on the carburetor of gasoline engine, including choke valve adjusting component, cam and throttle valve adjusting component, the choke valve adjusting component is connected with the choke valve shaft of carburetor, the throttle valve adjusting component is connected with the throttle valve shaft of the carburetor, the cam is connected with the choke valve adjusting component, the cam is abutted on the throttle valve adjusting component.

[0003] This general gasoline engine carburetor speed regulating device simplifies engine structure, reduces cost, improves the competitiveness of product, cancels the complex speed regulating mechanism on engine, realizes speed regulating function by setting a simple mechanism on carburetor, with the advantages of convenient to use, simple structure, stable and reliable etc.

[0004] But this general gasoline engine carburetor speed regulating device needs to manually move handle end, can only realize the adjustment of air door opening degree, operation is relatively inconvenient. INVENTION CONTENTS

[0005] Therefore, the utility model aims at providing a kind of air door automatic regulating mechanism, to achieve the effect of automatically adjusting air door opening degree, easy to operate.

[0006] In order to solve the above technical problem, the technical scheme of the utility model is as follows: a kind of air door automatic regulating mechanism, including fork, the fork rotation is controlled choke valve shaft rotation by connecting structure, further including driving part, the driving part drives fork rotation.

[0007] Realize the above technical scheme, driving part starts, driving part drives fork rotation, makes fork control choke valve shaft rotation by connecting structure, to realize the purpose of automatically adjusting air door opening degree;And it can realize remote control driving part to control fork rotation.

[0008] As a preferred scheme of the utility model, the driving part is connected with driving shaft, and the driving shaft moves along the length direction of itself and drives fork rotation.

[0009] Realize the above technical scheme, driving part starts, driving shaft moves along the length direction of itself, makes fork rotation, and fork rotation is more stable.

[0010] As a preferred scheme of the utility model, further including shell, and the driving part is fixed on the shell.

[0011] The driving member is fixed to the outer wall or the inner wall of the shell, so that the installation of the driving member is facilitated.

[0012] As a preferred scheme of the utility model, the driving member comprises an electromagnet, an air cylinder or an oil cylinder.

[0013] The above technical scheme is realized, and the production cost is low.

[0014] As a preferred scheme of the utility model, the outer wall of the shift fork is fixedly connected with a power assisting member, the driving shaft is connected with the power assisting member through an extension rod, and the driving shaft moves along the length direction of the driving shaft and rotates the shift fork through the extension rod and the power assisting member.

[0015] The above technical scheme is realized, the distance between the driving shaft and the shift fork can be further increased through the extension rod, different types of gasoline engines can be adapted, the practicability is improved, the power arm of the rotating shift fork is improved through the power assisting member, and the energy consumption of the driving member is reduced.

[0016] As a preferred scheme of the utility model, the power assisting member is provided with a first connecting hole, the driving shaft is provided with a second connecting hole, the two ends of the extension rod are respectively provided with a first hook section and a second hook section, the first hook section is inserted into the first connecting hole, and the second hook section is inserted into the second connecting hole.

[0017] The above technical scheme is realized, and the connection between the extension rod, the power assisting member and the driving shaft is more convenient.

[0018] As a preferred scheme of the utility model, the extension rod comprises a first straight section, a second straight section, a third straight section, a fourth straight section and a fifth straight section which are sequentially connected, the first included angle a between the first straight section and the second straight section and the second included angle b between the second straight section and the third straight section are obtuse angles, the third included angle c between the fourth straight section and the third straight section and the fourth included angle d between the fifth straight section and the fourth straight section are right angles, the first hook section is vertically connected with the fifth straight section, and the second hook section is vertically connected with the first straight section.

[0019] The above technical scheme is realized, and the components on the main machine and the shell are bypassed, so that the connection between the extension rod, the power assisting member and the driving shaft is more convenient.

[0020] As a preferred scheme of the utility model, the connecting structure comprises a rotating pin and a sliding groove, the sliding groove is arranged on the choke shaft, the rotating pin is fixed to the shift fork and slidably connected to the sliding groove, and the rotating pin is in contact with the inner wall of the sliding groove and drives the choke shaft to rotate.

[0021] The above technical scheme is realized, and when the shift fork rotates, the rotating pin is in contact with the inner wall of the sliding groove and drives the choke shaft to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 For embodying the structure of the schematic diagram;

[0023] Figure 2 For embodying the structure of the schematic diagram;

[0024] Figure 3 For embodying the structure of the schematic diagram;

[0025] Figure 4 For embodying the structure of the schematic diagram.

[0026] Reference signs: 1, fork; 11, booster; 12, first connecting hole; 2, choke shaft; 3, connecting structure; 31, rotating pin; 32, sliding groove; 4, driving member; 41, driving shaft; 42, second connecting hole; 5, extension rod; 51, first straight section; 52, second straight section; 53, third straight section; 54, fourth straight section; 55, fifth straight section; 61, first hook section; 62, second hook section; 7, shell; 71, through hole. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model are further described in detail below in combination with the drawings, so that the technical scheme of the utility model is easier to understand and master.

[0028] A choke automatic adjusting mechanism, comprising a fork 1 rotatably connected to a gasoline engine body. The fork 1 rotates and controls the rotation of the choke shaft 2 through the connecting structure 3. The gasoline engine body comprises a main engine and a shell. The shell is fixed to the outside of the main engine, and the fork 1 and the choke shaft 2 are rotatably connected to the main engine.

[0029] The connecting structure 3 comprises a rotating pin 31 and a sliding groove 32. The sliding groove 32 is provided on the choke shaft 2, and the rotating pin 31 is fixed to the fork 1 and slidably connected in the sliding groove 32. The rotating pin 31 is in contact with the inner wall of the sliding groove 32 and drives the rotation of the choke shaft 2.

[0030] The driving member 4 is fixedly connected to the shell. The driving member 4 is an electromagnet. When the driving member 4 is located on the side of the shell 7 facing the main engine, a through hole 71 needs to be provided on the shell 7. The driving shaft 41 is connected to the driving member 4, and the driving shaft 41 extends out of the through hole.

[0031] The booster 11 is fixedly connected to the outer wall of the fork 1, and the axis of the booster 11 is perpendicular to the rotation axis of the fork 1, so as to increase the power arm of the rotating fork 1. The driving shaft 41 is connected to the booster 11 through the extension rod 5.

[0032] The first connecting hole 12 is arranged on the assisting part 11, and the second connecting hole 42 is arranged on the driving shaft 41. The first hook section 61 and the second hook section 62 are arranged at two ends of the extension rod 5 respectively, the first hook section 61 is arranged in the first connecting hole 12, and the second hook section 62 is arranged in the second connecting hole 42.

[0033] The extension rod 5 comprises a first straight section 51, a second straight section 52, a third straight section 53, a fourth straight section 54 and a fifth straight section 55 which are sequentially connected. The first included angle a between the first straight section 51 and the second straight section 52 and the second included angle b between the second straight section 52 and the third straight section 53 are obtuse angles; the third included angle c between the fourth straight section 54 and the third straight section 53 and the fourth included angle d between the fifth straight section 55 and the fourth straight section 54 are right angles; the first hook section 61 is perpendicularly connected with the fifth straight section 55, and the second hook section 62 is perpendicularly connected with the first straight section 51.

[0034] The first straight section 51, the second straight section 52, the third straight section 53, the fourth straight section 54, the fifth straight section 55, the first hook section 61 and the second hook section 62 are integrally arranged.

[0035] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific implementation manners, and the technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of the present application.

Claims

1. A damper automatic adjusting mechanism comprising a shift fork (1) which rotates and controls the rotation of a choke shaft (2) through a connecting structure (3), characterized in that: The drive member (4) drives the shift fork (1) to rotate.

2. The automatic damper adjustment mechanism according to claim 1, characterized in that: The drive member (4) is connected with a driving shaft (41), which moves along the length direction of the driving shaft (41) and drives the shift fork (1) to rotate.

3. The automatic damper adjustment mechanism of claim 1, wherein: The drive member (4) is fixed on the shell (7).

4. The automatic damper adjustment mechanism of claim 1, wherein: The drive member (4) comprises an electromagnet or a pneumatic cylinder or an oil cylinder.

5. The automatic damper adjustment mechanism of claim 2, wherein: The outer wall of the shift fork (1) is fixedly connected with a booster (11), the driving shaft (41) is connected with the booster (11) through an extension rod (5), the driving shaft (41) moves along the length direction of the driving shaft (41) and drives the shift fork (1) to rotate through the extension rod (5) and the booster (11).

6. A damper automatic adjusting mechanism according to claim 5, characterized in that: The booster (11) is provided with a first connecting hole (12), the driving shaft (41) is provided with a second connecting hole (42), the extension rod (5) is provided with a first hook section (61) and a second hook section (62) at two ends, the first hook section (61) penetrates into the first connecting hole (12), and the second hook section (62) penetrates into the second connecting hole (42).

7. A damper automatic adjusting mechanism according to claim 6, characterized in that: The extension rod (5) comprises a first straight section (51), a second straight section (52), a third straight section (53), a fourth straight section (54) and a fifth straight section (55) connected in sequence, the first included angle a between the first straight section (51) and the second straight section (52) and the second included angle b between the second straight section (52) and the third straight section (53) are obtuse angles, the third included angle c between the fourth straight section (54) and the third straight section (53) and the fourth included angle d between the fifth straight section (55) and the fourth straight section (54) are right angles, the first hook section (61) is connected with the fifth straight section (55) perpendicularly, and the second hook section (62) is connected with the first straight section (51) perpendicularly.

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