CN220849858U - Semi-automatic throttle handle carburetor - Google Patents

Abstract

The utility model discloses a semi-automatic throttle handle carburetor, which comprises a carburetor body, a choke valve assembly, an adjusting block and a handle assembly, wherein the handle assembly is rotatably arranged on the carburetor body; a limit column is arranged at the upper end part of the carburetor body; and the inner side edge of the adjusting block is provided with a limiting groove, and after the choke valve assembly rotates by the maximum angle, the limiting groove is abutted with the limiting column. Through the cooperation work of handle subassembly and regulating block, can realize the stable opening and shutting of choke valve, and then make the proportion of fuel and air can be stable, improvement starting performance that can be better.

Description

Semi-automatic throttle handle carburetor

Technical Field

The utility model relates to the technical field of carburetors, in particular to a semi-automatic throttle handle carburetor.

Background

The carburetor is a mechanical device for mixing a certain proportion of gasoline and air under the vacuum effect generated by the operation of the engine, and is an important part of the normal operation of the engine. During engine starting, the engine is started by closing the intake passage, reducing the amount of air, and increasing the concentration of the mixture entering the engine.

The choke valve shaft of the choke valve of the existing carburetor is hard-connected with a choke valve shaft rotating frame, the choke valve shaft rotating frame is linked with a handle, and the handle drives the choke valve shaft rotating frame to drive the choke valve shaft to rotate so as to open or close the choke valve, so that air supply is realized. Generally, before the engine is cold started, the choke valve is closed, and after the engine is started, the choke valve is opened for air supply, but when the engine is started, the choke valve is not opened in time, so that fuel oil consumes air, the concentration of the fuel oil is continuously supplied, and at the moment, the proportion of the fuel oil to the air is unbalanced, so that the engine cannot be started normally.

The choke valve of the carburetor is controlled by a pull wire, and a return spring is usually arranged because of the starting mechanism of the existing carburetor, so that the choke valve is always pulled. Therefore, when in use, the stay wire needs to be continuously pulled to stabilize the opening and closing angle of the choke valve in the flow passage; however, in practice, when the power generator is used for switching fuel, the throttle valve and the choke valve are required to be controlled respectively, and at the moment, the throttle valve and the choke valve are required to be controlled respectively, so that the starting is complicated, on the other hand, when the conventional carburetor is opened through a pull wire, the opening and closing angle cannot be controlled, and sometimes the pulling angle is too large, so that the condition that the opening and closing degree of the runner is reduced occurs, and further improvement and optimization are also required.

Disclosure of utility model

The utility model aims to solve the problems that when the choke valve of the traditional carburetor is opened, the opening and closing angle is controlled by continuously pulling a pull wire, so that the starting is complicated, the opening and closing range is overlarge, the opening and closing angle is reduced, and the proportion of fuel oil and air is unbalanced, and provides a semi-automatic choke handle carburetor.

A semi-automatic throttle handle carburetor comprises

The carburetor comprises a carburetor body, wherein a runner is arranged on the carburetor body;

the choke valve assembly is rotatably arranged in the flow passage;

the adjusting block is sleeved on the choke valve assembly;

The handle assembly is rotatably arranged on the carburetor body, the bottom of the handle assembly is movably connected with the adjusting block, and the adjusting block can be driven to drive the choke valve assembly to realize unidirectional rotation by pulling the handle assembly;

a limit column is arranged at the upper end part of the carburetor body; and the inner side edge of the adjusting block is provided with a limiting groove, and after the choke valve assembly rotates by the maximum angle, the limiting groove is abutted with the limiting column.

Further, the choke assembly includes

The choke valve shaft is vertically and rotatably arranged in the runner in a penetrating manner and comprises a connecting part and a mounting part which are integrally formed; the upper end of the connecting part penetrates out of the flow channel and is fixedly connected with the adjusting block; the mounting part is detachably provided with a choke valve, and the choke valve is positioned in the flow passage.

Further, the bottom of regulating block is provided with six arris slots, on the setting of connecting portion was hexagonal prism, connecting portion peg graft in six arris slots.

Further, the handle assembly comprises a rotation part and a handle part which are integrally formed; the rotating part is arranged into a hollow cylinder structure; the carburetor is characterized in that a mounting shaft is arranged on one side of the upper portion of the carburetor body, and the rotating portion is sleeved on the mounting shaft and is movably limited through a screw.

Further, a connecting arm is arranged on one side of the rotating part, and a driving rod is vertically arranged at the bottom of the connecting arm; the adjusting block is provided with a driving through groove in a hollowed-out mode, and the driving rod is arranged in the driving through groove in a penetrating mode.

The beneficial effects of the utility model are as follows:

1. through the cooperation work of handle subassembly and regulating block, can realize the stable opening and shutting of choke valve, and then make the proportion of fuel and air can be stable, improvement starting performance that can be better.

2. Through carrying out optimal design to the regulating block, with spacing post cooperation make the windage door when rotating, guaranteed maximum aperture, avoid many degrees rotations, lead to the inconsistent condition of aperture, further avoid the engine unable normal start.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a carburetor;

FIG. 2 is a schematic diagram of an explosion structure of a carburetor;

FIG. 3 is a schematic view of the handle assembly and adjustment block connection structure;

FIG. 4 is a schematic view of the handle assembly and adjustment block exploded construction;

FIG. 5 is a schematic view of the connection of the adjustment block to the choke assembly;

FIG. 6 is a schematic diagram of the overall structure of the adjusting block;

In the figure, the carburetor comprises a carburetor body 1, a runner 10, a limiting column 11, a mounting shaft 12, a handle assembly 2, a rotating part 201, a handle part 202, a driving rod 21, a connecting arm 22, a screw 23, a choke valve assembly 3, a connecting part 302, a choke valve shaft 31, a choke valve 32, a regulating block 4, a driving through groove 41, a limiting groove 42 and a six-edge slot 43.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

Example 1

As shown in fig. 1 to 6, a semi-automatic throttle handle carburetor comprises a carburetor body 1, wherein a runner 10 is arranged on the carburetor body 1; specifically, the carburetor body 1 is an existing carburetor body, which belongs to the prior art, and the structure thereof will not be described in detail herein.

A choke assembly 3, the choke assembly 3 being rotatably disposed within the flow passage 10; specifically, the choke assembly 3 includes a choke shaft 31, the choke shaft 31 is vertically rotatably disposed in the flow channel 10 in a penetrating manner, and the choke shaft 31 includes an integrally formed connection portion 302 and a mounting portion 301; the upper end of the connecting part 302 penetrates out of the flow channel 10 and is fixedly connected with the regulating block 4; the mounting portion 301 is detachably provided with a choke valve 32, and the choke valve 32 is located in the flow passage 10. In this embodiment, the mounting portion 301 is provided with a mounting notch, the wind choke 32 is fixed in the mounting notch by a bolt, and the depth of the notch is greater than the thickness of the choke 32.

To avoid relative sliding after the connection portion 302 is mounted to the adjustment block 4, the choke valve 32 is prevented from opening and closing stably; the bottom of the adjusting block 4 is provided with a hexagonal slot 43, the connecting portion 302 is arranged on a hexagonal prism, and the connecting portion 302 is inserted into the hexagonal slot 43.

The adjusting block 4 is sleeved on the choke valve assembly 3; the adjusting block 4 is fixedly connected with the choke valve assembly 3 and synchronously rotates.

The handle assembly 2 is rotatably arranged on the carburetor body 1, the bottom of the handle assembly 2 is movably connected with the adjusting block 4, and the adjusting block 4 can drive the choke valve assembly 3 to realize unidirectional rotation by pulling the handle assembly 2; specifically, the handle assembly 2 includes a rotation portion 201 and a handle portion 202 integrally formed; the rotating part 201 is provided with a hollow cylinder structure; the carburetor is characterized in that a mounting shaft 12 is arranged on one side of the upper part of the carburetor body 1, and the rotating part 201 is sleeved on the mounting shaft 12 and is movably limited by a screw 23. In this embodiment, the mounting shaft 12 is provided with a threaded hole, and the screw 23 is screwed into the threaded hole. The rotating part 201 is sleeved on the mounting shaft 12, and can only rotate, but cannot slide in the vertical direction, and when the handle assembly 2 needs to be detached and replaced, the screw 23 type needs to be detached.

When the handle 202 is pulled, the rotating part 201 rotates at this time, one side of the rotating part 201 is provided with a connecting arm 22 for driving the adjusting block 4 to rotate, and the bottom of the connecting arm 22 is vertically provided with a driving rod 21; the adjusting block 4 is provided with a driving through groove 41 in a hollowed-out mode, and the driving rod 21 is arranged in the driving through groove 41 in a penetrating mode. During driving, the driving rod 21 slides in the driving groove 41 along the driving groove 41, and at this time, the middle part of the adjusting block 4 can only rotate, namely, the driving rod 21 drives the adjusting block 4 to rotate; in order to achieve a stable rotation, the drive slot 41 is preferably of a bar-like size and is directed towards the centre of the adjustment block 4. Through the cooperation work of handle subassembly and regulating block, can realize the stable opening and shutting of choke valve, and then make the proportion of fuel and air can be stable, improvement starting performance that can be better.

To prevent the windage door 32 from excessively rotating, the opening of the flow passage 10 is reduced; a limit column 11 is arranged at the upper end part of the carburetor body 1; the inside edge of the adjusting block 4 is provided with a limit groove 42, and after the choke valve assembly 3 rotates by a maximum angle, the limit groove 42 is abutted with the limit column 11. Through carrying out optimal design to regulating block 4, with spacing post 11 cooperation for the maximum aperture has been ensured when rotating to the windage door, avoids many degrees rotations, leads to the inconsistent condition of aperture, further avoids the engine unable normal start

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (5)

1. A semi-automatic throttle handle carburetor is characterized in that: comprising

A carburetor body (1), wherein a runner (10) is arranged on the carburetor body (1);

a choke assembly (3), the choke assembly (3) being rotatably disposed within the flow passage (10);

the adjusting block (4) is sleeved on the choke valve assembly (3);

The handle assembly (2) is rotatably arranged on the carburetor body (1), the bottom of the handle assembly (2) is movably connected with the adjusting block (4), and the adjusting block (4) can be driven to drive the choke valve assembly (3) to realize unidirectional rotation by pulling the handle assembly (2);

A limit column (11) is arranged at the upper end part of the carburetor body (1); the inner side edge of the adjusting block (4) is provided with a limiting groove (42), and after the choke valve assembly (3) rotates by the maximum angle, the limiting groove (42) is abutted with the limiting column (11).

2. A semiautomatic throttle handle carburetor according to claim 1, further characterized in that: the choke assembly (3) comprises

A choke shaft (31), wherein the choke shaft (31) is vertically and rotatably arranged in the runner (10) in a penetrating manner, and the choke shaft (31) comprises a connecting part (302) and a mounting part (301) which are integrally formed; the upper end of the connecting part (302) penetrates out of the flow channel (10) and is fixedly connected with the regulating block (4); a choke valve (32) is detachably arranged on the mounting part (301), and the choke valve (32) is positioned in the flow passage (10).

3. A semiautomatic throttle handle carburetor according to claim 2, characterized in that: the bottom of regulating block (4) is provided with six arris slots (43), on the setting of connecting portion (302) was hexagonal, connecting portion (302) were pegged graft in six arris slots (43).

4. A semiautomatic throttle handle carburetor according to claim 1, further characterized in that: the handle assembly (2) comprises a rotation part (201) and a handle part (202) which are integrally formed; the rotating part (201) is arranged into a hollow cylinder structure; the carburetor is characterized in that an installation shaft (12) is arranged on one side of the upper portion of the carburetor body (1), and the rotating portion (201) is sleeved on the installation shaft (12) and is movably limited through a screw (23).

5. A semiautomatic throttle handle carburetor according to claim 4, further comprising: a connecting arm (22) is arranged on one side of the rotating part (201), and a driving rod (21) is vertically arranged at the bottom of the connecting arm (22); the adjusting block (4) is provided with a driving through groove (41) in a hollowed-out mode, and the driving rod (21) is arranged in the driving through groove (41) in a penetrating mode.