Air throttle

Abstract

The utility model provides an air throttle, and belongs to the technical field of vehicle accessories. The problem that an existing valve plate is not high in opening and closing precision is solved. The air throttle comprises a valve body and a valve plate arranged in the valve body, the valve plate is movably connected with the valve body through a valve rod, one end of the valve rod extends outwards in the axial direction and extends out of the valve body in a penetrating mode, and a protruding part which protrudes outwards in the axial direction, is matched with the valve rod and is used for protecting the valve rod is arranged on the peripheral wall, located on the valve rod, of the valve body. The valve body is provided with an auxiliary unit which is connected with the valve body, can be used for controlling rotation of the valve rod and can play a role in speed reduction. The utility model has the advantage of high control precision.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts technology and relates to a throttle valve. Background Technology

[0002] The throttle body assembly belongs to the engine's intake system and is used to control the amount of air intake under different engine conditions. In addition, depending on the situation, it may also integrate a throttle position sensor, intake air temperature sensor, intake air pressure sensor, idle band control valve, etc. However, in actual use, it is necessary to ensure accuracy when controlling the valve plate. If the valve plate opens too quickly, it can easily lead to different intake volumes, thus affecting the use. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a throttle valve that improves control accuracy and enhances intelligent operation.

[0004] The objective of this utility model can be achieved through the following technical solution: a throttle valve, comprising a valve body and a valve plate disposed within the valve body, wherein the valve plate and the valve body are movably connected via a valve stem, characterized in that one end of the valve stem extends axially outward and extends through and extends beyond the valve body, the outer peripheral wall of the valve body located at the valve stem is provided with an axially outward protrusion that cooperates with the valve stem and is used to protect the protrusion of the valve stem, and the valve body is provided with an auxiliary unit connected thereto, which can be used to control the rotation of the valve stem and can play a deceleration role.

[0005] In the aforementioned throttle valve, the protrusion is arranged in a multi-level stepped structure, and the inner diameter of the protrusion decreases step by step from the outside to the inside.

[0006] In the aforementioned throttle valve, the auxiliary unit includes an auxiliary worm gear, an output motor with an output rod, and an output tooth. The output motor is mounted on and connected to the valve body, and the output rod of the output motor is connected to the auxiliary worm gear through a connecting sleeve. The output tooth is mounted on and connected to the valve stem, and the output tooth is located inside the protrusion, with a gap between the outer wall of the output tooth and the inner wall of the protrusion.

[0007] In the aforementioned throttle valve, a limiting plate connected to the protrusion and used to limit the position of the auxiliary worm gear is provided on the protrusion. A bearing connected to the limiting plate and facilitating the rotation of the auxiliary worm gear is provided on the limiting plate.

[0008] In the aforementioned throttle valve, the protrusion located at the output tooth has an opening groove on its outer peripheral wall, through which the auxiliary worm gear meshes with the output tooth.

[0009] Compared with existing technologies, this throttle valve has the advantage of improved control accuracy. Attached Figure Description

[0010] Figure 1 This is a top view of the structure of this throttle valve.

[0011] In the diagram, 1 is the valve body; 2 is the protrusion; 3 is the output motor; 4 is the auxiliary worm gear; and 5 is the limit plate. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 As shown, this throttle valve includes a valve body 1 and a valve plate disposed within the valve body 1, with the valve plate movably connected to the valve body 1 via a valve stem. The valve stem is characterized in that one end extends axially outward and extends through and beyond the valve body 1. An axially outward protrusion 2 is provided on the outer peripheral wall of the valve body 1 at the valve stem location, cooperating with the valve stem and protecting the protrusion. An auxiliary unit is provided on the valve body 1, connected to it, for controlling the rotation of the valve stem and providing deceleration. The auxiliary unit includes an auxiliary worm gear 4, an output motor 3 with an output rod, and output teeth. The output motor... 3 is mounted on and connected to the valve body 1, and the output rod of the output motor 3 is connected to the auxiliary worm 4 through a connecting sleeve. The output tooth is mounted on the valve stem and connected to it. The output tooth is located inside the protrusion 2, and there is a gap between the outer side wall of the output tooth and the inner side wall of the protrusion 2. A limiting plate 5 is mounted on the protrusion 2 and connected to it to limit the position of the auxiliary worm 4. A bearing is mounted on the limiting plate 5 and connected to it to facilitate the rotation of the auxiliary worm 4. An opening groove is opened on the outer peripheral wall of the protrusion 2 at the output tooth, and the auxiliary worm 4 is meshed with the output tooth through the opening groove.

[0014] As a preferred structure, the protrusion 2 is arranged in a multi-level stepped structure, and the inner diameter of the protrusion 2 decreases step by step from the outside to the inside.

[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0016] Although this document uses terms such as "etc." extensively, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A throttle valve, comprising a valve body (1) and a valve disc disposed within the valve body (1), wherein the valve disc is movably connected to the valve body (1) via a valve stem, characterized in that, One end of the valve stem extends outward axially and extends through and out of the valve body (1). The valve body (1) has an outward axial protrusion on the outer peripheral wall at the valve stem, which cooperates with the valve stem and is used to protect the protrusion (2) of the valve stem. The valve body (1) is provided with an auxiliary unit that is connected to it and can be used to control the rotation of the valve stem and can play a deceleration role.

2. A throttle valve according to claim 1, characterized in that, The protrusion (2) is arranged in a multi-level stepped structure, and the inner diameter of the protrusion (2) decreases gradually from the outside to the inside.

3. A throttle valve according to claim 1, characterized in that, The auxiliary unit includes an auxiliary worm gear (4), an output motor (3) with an output rod, and an output tooth. The output motor (3) is mounted on and connected to the valve body (1), and the output rod in the output motor (3) is connected to the auxiliary worm gear (4) through a connecting sleeve. The output tooth is mounted on and connected to the valve stem. The output tooth is located inside the protrusion (2), and there is a gap between the outer wall of the output tooth and the inner wall of the protrusion (2).

4. A throttle valve according to claim 1, characterized in that, The protrusion (2) is provided with a limiting plate (5) connected thereto and used to limit the position of the auxiliary worm (4). The limiting plate (5) is provided with a bearing connected thereto and facilitates the rotation of the auxiliary worm (4).

5. A throttle valve according to claim 4, characterized in that, The protrusion (2) has an opening groove on the outer peripheral wall at the output tooth, through which the auxiliary worm (4) meshes with the output tooth.

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