Throttle valve structure with independent air compensation function

Abstract

The utility model belongs to the technical field of vehicles, and provides a throttle valve structure with an independent air compensation function, which comprises a body, a throttle valve plate, a stand column and an adjusting bolt. Wherein the body forms an airflow channel with two open ends; the throttle plate is rotationally arranged in the airflow channel and used for controlling the opening degree of the airflow channel. The stand column is connected to the body and forms a compensation cavity independent of the airflow channel, and a first channel and a second channel which are communicated with the compensation cavity are further formed in the body. The adjusting bolt is in threaded connection with the stand column, at least part of the adjusting bolt extends into the compensation cavity, the part, extending into the compensation cavity, of the adjusting bolt is in sealed connection with the side wall of the compensation cavity, and the adjusting bolt is used for moving relative to the stand column in the axial direction of the adjusting bolt to adjust the opening degree of a communication port between the first channel and the compensation cavity.

Description

Technical Field

[0001] This application belongs to the technical field of vehicles, and particularly relates to a throttle structure with an independent air compensation function. Background Art

[0002] To enable a general gasoline engine to operate at a certain idle speed, through holes are usually opened on the throttle plate so that a certain amount of air can enter the gasoline engine even when the throttle opening is minimized, enabling the gasoline engine to maintain a certain idle speed and avoid stalling. However, the through holes in this method cannot be adjusted. At the same time, due to the combined influence of the cylinder bore of the gasoline engine and the machining error of the through holes, in order to ensure that the gasoline engine does not stall, the idle speed is usually set relatively high, resulting in poor fuel economy. That is, it is difficult to precisely adjust the compensation amount in the prior art, which has an adverse impact on the engine performance, fuel economy, and emission level. Therefore, it is necessary to solve the above technical problems. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a throttle structure with an independent air compensation function to solve the technical problems of non-adjustability and instability of the independent compensation amount of the throttle in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a throttle structure with an independent air compensation function, including:

[0005] A body that forms an air flow channel with two open ends;

[0006] A throttle plate that is rotatably arranged in the air flow channel and is used to control the opening of the air flow channel;

[0007] A column that is connected to the body and forms a compensation cavity independent of the air flow channel. The body also forms a first channel and a second channel that are respectively communicated with the compensation cavity. The first channel extends from the compensation cavity to the air flow channel and forms a notch at a position of the body close to the intake end of the air flow channel. The second channel extends from the compensation cavity to the air flow channel and forms an opening at a position of the body close to the outlet end of the air flow channel. The notch and the opening are located on both sides of the throttle plate;

[0008] An adjusting bolt that is threadedly connected to the column and at least a part of it extends into the compensation cavity. The part of the adjusting bolt extending into the compensation cavity is hermetically connected to the side wall of the compensation cavity. The adjusting bolt is used to move axially relative to the column to adjust the opening of the communication port between the first channel and the compensation cavity.

[0009] Optionally, the column forms an installation cavity communicated with the compensation cavity, and the throttle structure further includes a copper sleeve embedded in the installation cavity;

[0010] The adjusting bolt is in threaded connection with the copper sleeve.

[0011] Optionally, the throttle valve structure further includes an elastic sealing sleeve coaxially sleeved on the adjusting bolt;

[0012] The elastic sealing sleeve is interposed between the copper sleeve and the adjusting bolt and forms an interference fit with the adjusting bolt.

[0013] Optionally, the throttle valve structure further includes a washer embedded on the copper sleeve;

[0014] The washer is coaxially arranged with the elastic sealing sleeve, and two ends of the elastic sealing sleeve along its own axis respectively abut against the washer and the copper sleeve.

[0015] Optionally, the column further forms an adjusting cavity communicating with the installation cavity;

[0016] The whole adjusting bolt is located in the space formed by the cooperation of the adjusting cavity, the installation cavity and the compensation cavity.

[0017] Optionally, the adjusting cavity, the installation cavity and the compensation cavity are all coaxially arranged with the adjusting bolt.

[0018] Optionally, the throttle valve structure further includes a sealing cover detachably connected to the column;

[0019] The sealing cover and the column cooperate to form the sealed adjusting cavity.

[0020] Optionally, an adjusting hole located in the adjusting cavity and facing the sealing cover is formed on the adjusting bolt;

[0021] The axis of the adjusting hole is eccentrically arranged with the axis of the adjusting bolt.

[0022] The beneficial effects of the throttle structure with an independent air compensation function provided by this application are as follows: Compared with the prior art, in the throttle structure with an independent air compensation function of this application, in addition to flowing from one side of the throttle plate to the other side through the air flow channel, the air flow can also flow from one side of the throttle plate to the other side in sequence through the notch near the intake end of the air flow channel, the first channel, the compensation chamber, the second channel, and the opening near the outlet end of the air flow channel to form independent compensation. Since the opening degree of the communication port between the first channel and the compensation chamber is controlled by the adjustment bolt hermetically connected to the side wall of the compensation chamber moving relative to the column, and since the adjustment bolt threadedly connected to the column has the characteristic of being able to self-lock during the process of moving relative to the column, the adjustment bolt can effectively ensure that the opening degree of the communication port between the first channel and the compensation chamber conforms to the preset range for a long time. Therefore, it is also beneficial to enable the throttle structure with an independent air compensation function in this application to maintain an accurate and reliable air compensation amount for a long time, far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following described drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of the overall structure of the throttle structure with an independent air compensation function provided by the embodiment of this application Figure 1 ;

[0025] Figure 2 Schematic diagram of the overall structure of the throttle structure with an independent air compensation function provided by the embodiment of this application Figure 2 ;

[0026] Figure 3 Top view structure schematic diagram of the throttle structure with an independent air compensation function provided by the embodiment of this application;

[0027] Figure 4 is the sectional view along Figure 3 line A - A in

[0028] Among them, the reference numerals in the figure: 101, body; 102, air flow channel; 103, throttle plate; 104, column; 105, compensation chamber; 106, first channel; 107, second channel; 108, notch; 109, opening; 110, adjustment bolt; 111, installation cavity; 112, copper sleeve; 113, elastic sealing sleeve; 114, washer; 115, adjustment cavity; 116, sealing cover; 117, adjustment hole. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0033] Please refer to Figures 1 to 4 together. Now, a throttle valve structure with an independent air compensation function provided by an embodiment of the present application will be described. This throttle valve structure includes a body 101, a throttle plate 103, a column 104, and an adjusting bolt 110. Among them:

[0034] The body 101 forms an air flow channel 102 with both ends open; the throttle valve plate 103 is rotatably arranged in the air flow channel 102 and is used to control the opening degree of the air flow channel 102; the upright column 104 is connected to the body 101 and forms a compensation cavity 105 independent of the air flow channel 102. The body 101 also forms a first channel 106 and a second channel 107 that are respectively communicated with the compensation cavity 105. The first channel 106 extends from the compensation cavity 105 to the air flow channel 102 and forms a notch 108 at a position of the body 101 close to the air inlet end of the air flow channel 102. The second channel 107 extends from the compensation cavity 105 to the air flow channel 102 and forms an opening 109 at a position of the body 101 close to the air outlet end of the air flow channel 102. The notch 108 and the opening 109 are located on both sides of the throttle valve plate 103; the adjusting bolt 110 is threadedly connected to the upright column 104 and at least a part of it extends into the compensation cavity 105. The part of the adjusting bolt 110 extending into the compensation cavity 105 is hermetically connected to the side wall of the compensation cavity 105. The adjusting bolt 110 is used to move relative to the upright column 104 along its own axis to adjust the opening degree of the communication port between the first channel 106 and the compensation cavity 105.

[0035] According to the above structure provided in this embodiment, in the throttle structure with an independent air compensation function in this embodiment, in addition to flowing from one side of the throttle valve plate 103 to the other side through the air flow channel 102, the air flow can also flow from one side of the throttle valve plate 103 to the other side in sequence through the notch 108 near the air inlet end of the air flow channel 102, the first channel 106, the compensation cavity 105, the second channel 107, and the opening 109 near the air outlet end of the air flow channel 102 to form independent compensation. Since the opening degree of the communication port between the first channel 106 and the compensation cavity 105 is controlled by the relative movement of the adjusting bolt 110 hermetically connected to the side wall of the compensation cavity 105 relative to the upright column 104, and since the adjusting bolt 110 threadedly connected to the upright column 104 has the characteristic of self-locking during the process of moving relative to the upright column 104, the adjusting bolt 110 can effectively ensure that the opening degree of the communication port between the first channel 106 and the compensation cavity 105 conforms to the preset range for a long time after adjustment and setting. Therefore, it is also beneficial to enable the throttle structure with an independent air compensation function in this embodiment to maintain an accurate and reliable air compensation amount for a long time, which is far superior to the prior art.

[0036] In another embodiment of the present application, please refer to Figures 1 to 4, the column 104 forms an installation cavity 111 communicating with the compensation cavity 105, and the throttle structure further includes a copper sleeve 112 embedded in the installation cavity 111; the adjusting bolt 110 is threadedly connected to the copper sleeve 112. According to the above structure provided in this embodiment, the axial position of the adjusting bolt 110 can be accurately adjusted conveniently by the threaded connection of the adjusting bolt 110 with the copper sleeve 112 embedded inside the column 104, which is beneficial to enabling the throttle structure with an independent air compensation function in this embodiment to accurately adjust and set the air compensation amount on a dedicated test bench after assembly, so that when it is assembled and used on a gasoline engine, the gasoline engine can obtain the best idle performance.

[0037] In another embodiment of the present application, please refer to Figures 1 to 4 , the throttle structure further includes an elastic sealing sleeve 113 coaxially sleeved on the adjusting bolt 110; the elastic sealing sleeve 113 is interposed between the copper sleeve 112 and the adjusting bolt 110 and forms an interference fit with the adjusting bolt 110. According to the above structure provided in this embodiment, the elastic sealing sleeve 113 in this embodiment can be made of high-temperature-resistant fluororubber, nylon material or high-temperature-resistant polyurethane material, and its outer wall is also in an interference fit state with the steel sleeve 112 (see the following for details). Since the material of the elastic sealing sleeve 113 has good high-temperature resistance and elasticity, the adjusting bolt 110 forming an interference fit with the elastic sealing sleeve 113 can better form an internal thread on the inner wall of the elastic sealing sleeve 113 that tightly wraps the external thread of the adjusting bolt 110. On the one hand, it has a good sealing effect, and on the other hand, it has a strong anti-loosening effect, which is beneficial to enabling the throttle structure with an independent air compensation function in this embodiment to maintain an accurate and reliable air compensation amount for a longer time.

[0038] In another embodiment of the present application, please refer to Figures 1 to 4, the throttle structure further includes a washer 114 embedded on the copper sleeve 112; the washer 114 is coaxially arranged with the elastic sealing sleeve 113, and both ends of the elastic sealing sleeve 113 along its own axis are respectively abutted against the washer 114 and the copper sleeve 112. According to the above structure provided in this embodiment, the washer 114 can cooperate with the copper sleeve 112 to form a more stable clamping of the elastic sealing sleeve 113, which is beneficial to making the adjusting bolt 110 more stably connected to the elastic sealing sleeve 113 and beneficial to making the throttle structure with an independent air compensation function in this embodiment be able to maintain an accurate and reliable air compensation amount for a longer time. Generally, after the elastic sealing sleeve 113 is inserted into the stepped hole section provided for the elastic sealing sleeve 113 in the copper sleeve 112, the washer 114 is placed at the outer end of the elastic sealing sleeve 113, and finally, the mouth end of the copper sleeve 112 is riveted inward to rivet the washer 114 at the mouth end of the copper sleeve 112 while axially pressing the elastic sealing sleeve 113 in the copper sleeve 112. At this time, due to the axial pressing action of the elastic sealing sleeve 113, a compressive stress is generated between the outer wall of the elastic sealing sleeve 113 and the corresponding inner wall of the copper sleeve to achieve an interference fit.

[0039] In another embodiment of the present application, please refer to Figures 1 to 4 , the column 104 further forms an adjustment cavity 115 communicating with the installation cavity 111; the entire adjusting bolt 110 is located in the space formed by the cooperation of the adjustment cavity 115, the installation cavity 111, and the compensation cavity 105. According to the above structure provided in this embodiment, the adjusting bolt 110 provided inside the column 104 can effectively avoid accidental touch and misadjustment, which is beneficial to making the throttle structure with an independent air compensation function in this embodiment be able to maintain an accurate and reliable air compensation amount for a longer time.

[0040] In another embodiment of the present application, please refer to Figures 1 to 4 , the adjustment cavity 115, the installation cavity 111, and the compensation cavity 105 are all coaxially arranged with the adjusting bolt 110. According to the above structure provided in this embodiment, the adjustment cavity 115, the installation cavity 111, and the compensation cavity 105 coaxially arranged with the adjusting bolt 110 can significantly reduce the volume of the column 104, which can also effectively avoid accidental touch and misadjustment of the adjusting bolt 110, and thus is also beneficial to making the throttle structure with an independent air compensation function in this embodiment be able to maintain an accurate and reliable air compensation amount for a longer time.

[0041] In another embodiment of the present application, please refer to Figures 1 to 4, the throttle structure further includes a sealing cover 116 detachably connected to the column 104; the sealing cover 116 and the column 104 cooperate to form a sealed adjustment cavity 115. According to the above structure provided in this embodiment, the sealing cover 116 detachably connected to the column 104 can not only facilitate the adjustment of the adjusting bolt 110, but also effectively avoid the accidental touch and misadjustment of the adjusting bolt 110, which is also beneficial to enabling the throttle structure with an independent air compensation function in this embodiment to maintain an accurate and reliable air compensation amount for a longer time.

[0042] In another embodiment of the present application, please refer to Figures 1 to 4 , an adjustment hole 117 is formed on the adjusting bolt 110 and is located in the adjustment cavity 115 and faces the sealing cover 116; the axial direction of the adjustment hole 117 is eccentrically arranged with respect to the axial direction of the adjusting bolt 110. According to the above structure provided in this embodiment, since the adjustment hole 117 and the adjusting bolt 110 are eccentrically arranged, conventional adjustment tools cannot be adapted to the adjusting bolt 110, and only a specific adjustment tool can be used to conveniently adjust the adjusting bolt 110 when the throttle is assembled and adjusted on the test bench. In this way, the accidental touch and misadjustment of the adjusting bolt 110 can also be effectively avoided, which is also beneficial to enabling the throttle structure with an independent air compensation function in this embodiment to maintain an accurate and reliable air compensation amount for a longer time.

[0043] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A throttle structure with independent air compensation function, characterized in that: include: A body (101) forms an air flow channel (102) with openings at both ends; A throttle plate (103) rotatably disposed in the airflow channel (102) and used to control the opening of the airflow channel (102); a column (104) connected to the body (101) and forming a compensation chamber (105) independent of the air flow channel (102); a first channel (106) and a second channel (107) respectively connected to the compensation chamber (105) are formed on the body (101); the first channel (106) extends from the compensation chamber (105) to the air flow channel (102) and forms a notch (108) at a position of the body (101) close to an air inlet end of the air flow channel (102); the second channel (107) extends from the compensation chamber (105) to the air flow channel (102) and forms an opening (109) at a position of the body (101) close to an air outlet end of the air flow channel (102); the notch (108) and the opening (109) are located on both sides of the throttle plate (103); An adjusting bolt (110) is threadedly connected to the column (104) and at least a portion of which extends into the compensation chamber (105); the portion of the adjusting bolt (110) extending into the compensation chamber (105) is sealingly connected to a side wall of the compensation chamber (105); the adjusting bolt (110) is used to move along its own axial direction relative to the column (104) to adjust the opening of the communication port between the first channel (106) and the compensation chamber (105).

2. The throttle structure with independent air compensation function as claimed in claim 1, characterized in that: The upright column (104) forms a mounting cavity (111) connected to the compensation cavity (105), and the throttle structure further comprises a copper sleeve (112) embedded in the mounting cavity (111); The adjusting bolt (110) is threadedly connected to the copper sleeve (112).

3. The throttle structure with independent air compensation function as claimed in claim 2, characterized in that: The throttle structure also includes an elastic sealing sleeve (113) coaxially sleeved on the adjusting bolt (110); The elastic sealing sleeve (113) is cushioned between the copper sleeve (112) and the adjusting bolt (110) and forms an interference fit with the adjusting bolt (110).

4. The throttle structure with independent air compensation function as claimed in claim 3, characterized in that: The throttle structure further comprises a washer (114) embedded in the copper sleeve (112); The gasket (114) is coaxially arranged with the elastic sealing sleeve (113), and two ends of the elastic sealing sleeve (113) along its own axial direction respectively abut against the gasket (114) and the copper sleeve (112).

5. The throttle structure with independent air compensation function as claimed in claim 2, characterized in that: The upright column (104) further forms an adjustment cavity (115) connected to the installation cavity (111); The adjusting bolts (110) are all located in a space formed by the adjusting cavity (115), the installation cavity (111) and the compensation cavity (105).

6. The throttle structure with independent air compensation function as claimed in claim 5, characterized in that: The adjusting chamber (115), the installing chamber (111) and the compensating chamber (105) are all arranged coaxially with the adjusting bolt (110).

7. The throttle structure with independent air compensation function as claimed in claim 5, characterized in that: The throttle structure further comprises a sealing cover (116) detachably connected to the column (104); The sealing cover (116) cooperates with the upright column (104) to form the sealed adjustment chamber (115).

8. The throttle structure with independent air compensation function as claimed in claim 7, characterized in that: An adjustment hole (117) is formed on the adjustment bolt (110) and is located in the adjustment cavity (115) and faces the sealing cover (116); The axial direction of the adjustment hole (117) is eccentric to the axial direction of the adjustment bolt (110).

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