Plug piece type angle fixing device for throttle valve shaft

Abstract

The utility model provides a plug piece type angle fixing device for a throttle valve shaft, which comprises a first driving mechanism, a second driving mechanism, an upper pressing block, a first connecting rod, a supporting plate and a first fixing seat, the supporting plate is used for placing a throttle valve body, the movable end of the first driving mechanism is coupled with one end of the first connecting rod, and the first connecting rod is coupled with the first fixing seat. The other end of the first connecting rod is connected with an upper pressing block and a second driving mechanism, the upper pressing block corresponds to a throttle valve body on the supporting plate, and the movable end of the second driving mechanism corresponds to a throttle valve piece in the throttle valve body. A first connecting block is further arranged on the supporting plate, a vertical plug piece is connected to the first connecting block, and the plug piece is arranged between the throttle valve piece and the inner side wall of the throttle valve channel. The throttle valve shaft angle fixing device solves the problem of how to more efficiently and accurately determine the angle of the throttle valve sheet and achieve the efficient throttle valve shaft angle fixing function in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of throttle processing especially relates to a plug -in sheet type angle fixing device for throttle shaft. BACKGROUND

[0002] The adjustment of the throttle shaft circumferential angle of the existing throttle body is through manual adjustment, after fixing the throttle body, the worker realizes the throttle piece turnover by knocking the throttle piece, adjusts the angle of the throttle piece, when the angle of the throttle piece reaches the specified angle, the throttle shaft circumferential angle reaches the welding required angle at this time, and then the subsequent welding of the throttle shaft and the reset gear assembly can be carried out, in this process, the manual knocking method adjusts the throttle piece angle process time and spends long, needs repeatedly adjusting, and the subsequent welding process is delayed.

[0003] Therefore, how to more efficiently and accurately determine the angle of the throttle piece and realize the efficient throttle shaft angle fixing function become the technical problems to be solved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a plug -in sheet type angle fixing device for throttle shaft, and mainly solves the problems of how to more efficiently and accurately determine the angle of the throttle piece and realize the efficient throttle shaft angle fixing function in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme of a plug -in sheet type angle fixing device for throttle shaft, characterized by: the plug -in sheet type angle fixing device comprises a first driving mechanism, a second driving mechanism, an upper pressing block, a first connecting rod, a support plate for placing the throttle body and a first fixed seat, the movable end shaft of the first driving mechanism is connected with one end of the first connecting rod, the first connecting rod is connected with the first fixed seat, the other end of the first connecting rod is connected with the upper pressing block and the second driving mechanism, the upper pressing block corresponds to the throttle body on the support plate, and the movable end of the second driving mechanism corresponds to the throttle piece in the throttle body.

[0006] The support plate is further provided with a first connecting block, a vertical plug -in sheet is connected on the first connecting block, and the plug -in sheet is arranged between the throttle piece and the inner side wall of the throttle passage.

[0007] Further, the side surface of the first connecting block close to the inner side wall of the throttle passage is arc-shaped and matched with the inner side wall of the throttle passage.

[0008] The first connecting block is provided with a first mounting hole for mounting the plug -in sheet, and the first mounting hole is close to the inner side wall of the throttle passage.

[0009] A first mounting piece for fixing the plug -in sheet is arranged in the first mounting hole.

[0010] Further, the support plate is provided with two first connecting blocks, and one vertical plug sheet is connected to each first connecting block, the projection connecting line of the two plug sheets passes through the center of the throttle sheet, and the projection connecting line of the two plug sheets is perpendicular to the projection of the throttle shaft.

[0011] Further, the top surface of the support plate is provided with a positioning pin for positioning the throttle body; the first connecting rod is in a bent shape, and the bent corner of the first connecting rod is connected to the first fixed seat shaft.

[0012] Further, the throttle sheet in the throttle body is divided into a higher half throttle sheet and a lower half throttle sheet by the throttle shaft, and the movable end of the second driving mechanism corresponds to the higher half throttle sheet.

[0013] Further, the upper pressing block and the support plate press the throttle body; the bottom of the upper pressing block is in an arc shape; and the bottom of the upper pressing block is provided with an elastic part.

[0014] Further, the part of the support plate corresponding to the throttle passage is provided with a hollow part; the support plate is connected to a gas conveying pipe, one end of the gas outlet of the gas conveying pipe corresponds to the hollow part and communicates with the throttle passage, and the other end of the gas inlet of the gas conveying pipe is connected to the gas outlet of a vacuum pump.

[0015] Further, the first driving mechanism is a first cylinder, the bottom of the first cylinder is connected to a first connecting plate through a shaft, the first connecting plate is fixed on a first base, and the first base is fixed on a first bottom plate;

[0016] The bottom of the first fixed seat is connected to the first bottom plate through a second base;

[0017] The second driving mechanism is a second cylinder.

[0018] Further, the plug sheet type angle fixing device comprises a workbench plate and a control mechanism, and the first bottom plate is fixed on the workbench plate;

[0019] The gas conveying pipe is connected to a vacuum pump below the workbench plate after passing through the workbench plate;

[0020] The gas conveying pipe is fixed on the workbench plate through the second base;

[0021] The control mechanism controls the operation of the first driving mechanism, the second driving mechanism and the vacuum pump.

[0022] Further, the gas conveying pipe is also provided with an air flow detector;

[0023] The top surface of the support plate is provided with a groove outside the hollow part, the groove is provided with a sealing part, and the top of the sealing part corresponds to the edge part of the throttle passage of the throttle body.

[0024] In view of the above technical features, the utility model has the following beneficial effects:

[0025] 1. This utility model discloses a plug-type angle-fixing device for a throttle body. The throttle body is placed on a support plate, and an upper pressure block presses it down. A plug is positioned between the throttle plate and the inner wall of the throttle passage. A second drive mechanism pushes the throttle plate to rotate, causing the throttle body to rotate circumferentially, thus adjusting the angle of the throttle body and achieving angle fixing. Once the circumferential angle of the throttle body is adjusted to the specified angle, it facilitates subsequent welding of the throttle body and the reset gear assembly. This allows for more efficient and precise determination of the throttle plate angle, achieving a highly efficient throttle body angle-fixing function and improving the efficiency of throttle body angle preparation before welding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram (three-dimensional angle) of a plug-type angle-fixing device for a throttle shaft in specific embodiment 1.

[0027] Figure 2 This is a schematic diagram (front view) of a plug-type angle-fixing device for a throttle shaft in specific embodiment 1.

[0028] Figure 3 This is a schematic diagram (left view) of a plug-type angle-fixing device for a throttle shaft in specific embodiment 1.

[0029] Figure 4 This is a partial structural diagram of the plug-type angle-fixing device in specific embodiment 1. Figure 1 .

[0030] Figure 5 This is a partial structural diagram of the plug-type angle-fixing device in specific embodiment 1. Figure 2 .

[0031] Figure 6 This is a partial structural diagram of the plug-type angle-fixing device in specific embodiment 1. Figure 3 .

[0032] Figure 7 This is a partial structural diagram of the plug-type angle-fixing device in specific embodiment 1. Figure 4 .

[0033] Figure 8 yes Figure 7 A magnified view of a portion of the image.

[0034] Figure 9 This is a schematic diagram of the structure of the first connecting block, the first mounting piece, and the plug in specific embodiment 1.

[0035] Figure 10 This is a schematic diagram of the structure of the first connecting block and the first mounting piece in specific embodiment 1.

[0036] Figure 11This is a cross-sectional view of the throttle body, support plate, second drive mechanism and upper pressure block in specific embodiment 1.

[0037] Figure 12 This is a schematic diagram of the throttle body (including the reset gear assembly) in specific embodiment 1.

[0038] Figure 13 This is a schematic diagram of the throttle body in specific embodiment 1.

[0039] Figure 14 This is a schematic diagram (three-dimensional angle, including the throttle body) of a plug-type angle-fixing device for a throttle shaft in specific embodiment 1.

[0040] In the diagram: 100, Throttle body; 101, Throttle shaft; 102, Throttle plate; 103, Throttle passage; 104, Mounting hole of throttle body; 105, Reset gear assembly; 106, Reset spring; 107, Edge of throttle passage;

[0041] 200. First drive mechanism; 201. First connecting rod; 202. First fixed base; 203. Second drive mechanism; 204. Upper pressure block; 205. First connecting plate; 206. First base; 207. First bottom plate; 208. Second base; 209. First connecting shaft; 210. Second connecting shaft; 211. Third connecting shaft;

[0042] 300, Support plate; 301, Plug; 302, Positioning pin; 303, First connecting block; 304, First mounting hole; 305, First mounting piece; 306, Hollow part; 307, Gas pipe; 308, Second base plate; 309, Vacuum pump; 310, Workbench plate; 311, Groove. Detailed Implementation

[0043] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0044] See Figures 1 to 14Specific embodiment 1: This embodiment 1 provides a plug-type angle-fixing device for a throttle body shaft, including a first drive mechanism 200, a second drive mechanism 203, an upper pressure block 204, a first connecting rod 201, a support plate 300 for placing the throttle body 100, and a first fixed seat 202. The movable end of the first drive mechanism 200 is axially connected to one end of the first connecting rod 201, and the first connecting rod 201 is axially connected to the first fixed seat 202. The other end of the first connecting rod 201 is connected to the upper pressure block 204 and the second drive mechanism 203. The upper pressure block 204 corresponds to the throttle body 100 on the support plate 300, and the movable end of the second drive mechanism 203 corresponds to the throttle plate 102 inside the throttle body 100. The support plate 300 is also provided with a first connecting block 303, and a vertical plug 301 is connected to the first connecting block 303. The plug 301 is placed between the throttle plate 102 and the inner wall of the throttle channel 103. The operator places the throttle body 100 on the support plate 300. At this time, the throttle passage 103 is in a vertical state, and the plug 301 is placed between the throttle plate 102 and the inner wall of the throttle passage 103. Then, the first drive mechanism 200 moves the upper pressure block 204 and the second drive mechanism 203 downwards. The upper pressure block 204 presses on the throttle body 100, and the movable end of the second drive mechanism 203 corresponds to the throttle plate 102. Then, the movable end of the second drive mechanism 203 abuts against the throttle plate 102, so that the throttle plate 102... The throttle shaft 101 is rotated around the center, which simultaneously drives the throttle shaft 101 to rotate circumferentially. When the throttle plate 102 clamps the plug 301 with the inner wall of the throttle channel 103, the throttle plate 102 stops rotating and the throttle shaft 101 stops rotating circumferentially. At this time, the angle of the throttle shaft 101 has been adjusted to the specified angle, which can meet the requirements of welding the throttle shaft 101 with the reset gear assembly 105. This achieves the purpose of using the plug 301 to fix the angle of the throttle shaft 101. The operation is simple, convenient and has a high yield rate.

[0045] The movable end of the first drive mechanism 200 is connected to one end of the first connecting rod 201. For example, the movable end of the first drive mechanism 200 is connected to one end of the first connecting rod 201 through the third connecting shaft 211, ensuring that one end of the first connecting rod 201 can move in an arc trajectory under the drive of the movable end of the first drive mechanism 200.

[0046] Preferably, the side of the first connecting block 303 near the inner wall of the throttle passage 103 is arc-shaped, matching the inner wall of the throttle passage 103. This allows for clearance of the throttle body 100 and also helps to position the throttle passage 103, enabling the throttle body 100 to be placed on the support plate 300 more quickly and accurately, thus improving the efficiency and accuracy of the throttle shaft 101 in setting the angle.

[0047] The first connecting block 303 is provided with a first mounting hole 304 for mounting the plug 301. The first mounting hole 304 is close to the inner wall of the throttle passage 103, so that the plug 301 is as close as possible to the inner wall of the throttle passage 103. When the throttle plate 102 clamps the plug 301 with the inner wall of the throttle passage 103, the plug 301 is kept as vertical as possible, or in other words, the plug 301 tends to be as vertical as possible. This reduces the gap between the throttle plate 102 and the inner wall of the throttle passage 103 due to the tilt of the plug 301 (such as the gap being too large), and avoids indirectly causing the throttle plate 102 to not flip into place and the throttle shaft 101 to rotate inaccurately.

[0048] The first mounting hole 304 is fitted with a first mounting piece 305 for fixing the plug 301. The top of the first mounting piece 305 is hook-shaped. When installing the plug 301, the plug 301 is inserted into the first mounting hole 304, and then the first mounting piece 305 is inserted. The first mounting piece 305 and the first mounting hole 304 clamp the plug 301, thus fixing the plug 301 in place. Then, the hook-shaped part of the first mounting piece 305 is aligned with the inside of the first connecting block 303, and the first mounting piece 305 is pressed down. The hook-shaped part of the first mounting piece 305 hangs on the top of the first connecting block 303. The installation of the first mounting piece 305 is more stable and less likely to fall off. It also makes it easier to remove the first mounting piece 305, allowing for quick and convenient installation, removal, and replacement of the plug 301.

[0049] The support plate 300 is provided with two first connecting blocks 303, each of which is connected to a vertical plug 301. The projection line connecting the two plugs 301 passes through the center of the throttle plate 102, and the projection line connecting the two plugs 301 is perpendicular to the projection of the throttle shaft 101. There is a plug 301 on each side of the throttle plate 102. After the throttle plate 102 is flipped, it can press down on both plugs 301 at the same time. The throttle plate 102 as a whole distributes the pressure of the moving end of the second drive mechanism 203 more evenly, so that the two corresponding gaps between the two sides of the throttle plate 102 and the inner wall of the throttle channel 103 are more uniform in size, ensuring that the circumferential rotation angle of the throttle shaft 101 is more accurate. If only one plug 301 is located between one side of the throttle plate 102 (e.g., the higher half of the throttle plate 102) and the inner wall of the throttle passage 103, and the moving end of the second drive mechanism 203 presses down on that side of the throttle plate 102 (e.g., the higher half of the throttle plate 102) with the same force, it is easy to cause the force between that side of the throttle plate 102 and the inner wall of the throttle passage 103 to clamp the plug 301 too much, which may damage the plug 301. Alternatively, it may cause the two corresponding gaps between the two sides of the throttle plate 102 and the inner wall of the throttle passage 103 to be different in size. In this case, the circumferential rotation angle of the throttle shaft 101 will be inaccurate, affecting working efficiency and processing quality.

[0050] The top surface of the support plate 300 is provided with positioning pins 302 for positioning the throttle body 100. The positioning pins 302 are embedded in the mounting holes 104 of the throttle body, ensuring that the throttle body 100 is placed stably on the support plate 300. This allows the throttle body 100 to be installed on the support plate 300 quickly and accurately, improving work efficiency. There can be three or more positioning pins 302, which also serve to prevent incorrect installation of the throttle body 100, further improving work efficiency.

[0051] The first connecting rod 201 is bent, and the bend of the first connecting rod 201 is axially connected to the first fixed seat 202, that is, the bend of the first connecting rod 201 and the first fixed seat 202 are connected through the first connecting shaft 209. The first connecting rod 201 can rotate around the first connecting shaft 209 as a fulcrum. The movable end of the first drive mechanism 200 moves one end of the first connecting rod 201 up and down in an arc trajectory. Around the first connecting shaft 209 as a fulcrum, the other end of the first connecting rod 201 moves the upper pressure block 204 and the second drive mechanism 203 in the opposite direction in an arc trajectory. When the upper pressure block 204 presses on the throttle body 100, the second drive mechanism 203 moves into the throttle channel 103. The movable end of the driving mechanism 203 corresponds to the throttle body 102. The first connecting rod 201, where the upper pressure block 204 is located, is horizontal between the other end of the first connecting rod 201 and the first connecting shaft 209, so that the upper pressure block 204 can cooperate with the support plate 300 to press the throttle body 100. The first connecting rod 201, where the movable end of the first driving mechanism 200 is connected, is inclined upward between one end of the first connecting rod 201 and the first connecting shaft 209. After the throttle shaft 101 is set at a certain angle, the movable end of the first driving mechanism 200 can retract and rotate the first connecting rod 201, so that the upper pressure block 204 and the second driving mechanism 203 move upward and away from the throttle body 100, so that the throttle body 100 can be removed.

[0052] In the throttle body 100, the throttle plate 102 is divided into a higher half and a lower half by the throttle shaft 101. The movable end of the second drive mechanism 203 corresponds to the higher half of the throttle plate 102, ensuring that when the movable end of the second drive mechanism 203, located above the throttle plate 102, is pressed downward, it can press the throttle plate 102 to flip, and then the plug 301 is clamped between the throttle plate 102 and the inner wall of the throttle passage 103. The second drive mechanism 203 is inclined, and the end face of the movable end of the second drive mechanism 203 is flat, ensuring that the end face of the movable end of the second drive mechanism 203 presses on the top surface of the throttle plate 102, so that the force on the throttle plate 102 is better distributed and the force is not dispersed.

[0053] The upper pressure block 204 and the support plate 300 press against the throttle body 100, fixing the throttle body 100 in place. The bottom of the upper pressure block 204 is arc-shaped, allowing it to press more firmly against the throttle body 100. The bottom of the upper pressure block 204 has an elastic part, which has a buffering effect, so that the upper pressure block 204 can press against the throttle body without damaging the throttle body 100 due to excessive pressure.

[0054] The support plate 300 has a hollow section 306 corresponding to the throttle passage 103. The bottom of the support plate 300 is connected to an air supply pipe 307. One end of the air supply pipe 307 corresponds to the hollow section 306 and connects to the throttle passage 103, while the other end connects to the outlet of the vacuum pump 309. An air flow detector (not shown in the attached figure) is also installed inside the air supply pipe 307. The vacuum pump 309, air supply pipe 307, hollow section 306, and throttle passage 103 form an air passage for gas passage. The air flow detector detects the gas flow rate within the throttle passage 103, helping to determine if the gap between the throttle body 100 and the side wall of the throttle passage 103 meets the requirements. If it does, it indicates that the throttle shaft 101's circumferential rotation angle has reached the specified angle requirement (i.e., meeting the angle requirement of the throttle shaft 101 when welding it to the reset gear assembly 105), thus completing the angle setting operation of the throttle shaft 101. The size of the plug 301 (such as the thickness of the plug 301) can also be adjusted using the aforementioned gas flow detection method. One plug 301 is used for one throttle body 100. After finding a plug 301 of suitable thickness for one throttle body 100, the throttle shaft 101 can be fixed at a certain angle for subsequent throttle bodies 100 of the same type.

[0055] The first drive mechanism 200 is a first cylinder. The bottom of the first cylinder is connected to the first connecting plate 205. For example, the bottom of the first cylinder is connected to the first connecting plate 205 through the second connecting shaft 210. The first connecting plate 205 is fixed on the first base 206, and the first base 206 is fixed on the first base plate 207. The bottom of the first cylinder and the first connecting plate 205 can rotate and move, so that the moving end of the first cylinder can push one end of the first connecting rod 201 to move in an arc trajectory more flexibly.

[0056] The bottom of the first fixed seat 202 is connected to the first base plate 207 via the second base 208; the second drive mechanism 203 is the second cylinder.

[0057] The 301-type angle-fixing device includes a worktable 310 and a control mechanism. A first base plate 207 is fixed on the worktable 310. An air supply pipe 307 passes through the worktable 310 and connects to a vacuum pump 309 located below the worktable 310, making efficient use of the space below the worktable 310. The air supply pipe 307 is fixed to the worktable 310 via a second base plate 308, which helps to securely connect the air supply pipe 307 to the worktable 310. The air supply pipe 307 is made of metal and can also raise the height of the support plate 300, thus raising the height of the throttle body 100 and increasing the range of motion of the moving end of the first cylinder.

[0058] A groove 311 is provided on the top surface of the support plate 300 outside the hollow part 306. A sealing part (not shown in the figure) is provided in the groove 311. The top of the sealing part corresponds to the edge 107 of the throttle passage of the throttle body 100. The sealing part is a sealing ring (not shown in the figure) used to fill the gap between the throttle body 100 part corresponding to the throttle passage 103 and the support plate 300. It does not affect the support plate 300 and the upper pressure block 204 from jointly pressing the throttle body 100, preventing the gas flowing into the throttle passage 103 from leaking out, and ensuring the accuracy of the air flow detector in detecting the gas in the throttle passage 103.

[0059] The control mechanism controls the operation of the first drive mechanism 200, the second drive mechanism 203 and the vacuum pump 309. The operator only needs to accurately place the throttle body 100 on the support plate 300. The control mechanism controls the first drive mechanism 200 and the second drive mechanism 203 to run in sequence. First, the throttle body 100 is fixed, and then the throttle plate 102 is flipped, which rotates the throttle shaft 101 in a circumferential direction. This completes the angle setting operation of the throttle shaft 101, which facilitates the subsequent welding operation of the throttle shaft 101 and the reset gear assembly 105.

[0060] During welding, the reset gear assembly 105 compresses the reset spring 106. After welding, the movable end of the second drive mechanism 203 retracts away from the throttle plate 102, and the reset spring 106 rotates the reset gear assembly 105 to reset. Simultaneously, the throttle shaft 101 rotates slightly. At this time, the throttle plate 102 releases the plug 301 from the inner wall of the throttle channel 103, making it easier for the welded throttle body 100 to be removed.

[0061] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A plug-type angle-fixing device for a throttle body shaft, characterized in that: The throttle plate (301) type angle fixing device includes a first drive mechanism (200), a second drive mechanism (203), an upper pressure block (204), a first connecting rod (201), a support plate (300) for placing the throttle body (100), and a first fixed seat (202). The movable end of the first drive mechanism (200) is axially connected to one end of the first connecting rod (201), and the first connecting rod (201) is axially connected to the first fixed seat (202). The other end of the first connecting rod (201) is connected to the upper pressure block (204) and the second drive mechanism (203). The upper pressure block (204) corresponds to the throttle body (100) on the support plate (300), and the movable end of the second drive mechanism (203) corresponds to the throttle plate (102) inside the throttle body (100). The support plate (300) is also provided with a first connecting block (303), on which a vertical plug (301) is connected. The plug (301) is placed between the throttle plate (102) and the inner wall of the throttle passage (103).

2. The plug-type angle-fixing device for a throttle body shaft according to claim 1, characterized in that: The side of the first connecting block (303) near the inner wall of the throttle passage (103) is arc-shaped and matches the inner wall of the throttle passage (103); The first connecting block (303) is provided with a first mounting hole (304) for installing the plug (301), and the first mounting hole (304) is close to the inner wall of the throttle passage (103); The first mounting hole (304) is fitted with a first mounting piece (305) for fixing the plug piece (301).

3. A plug-type angle-fixing device for a throttle body shaft according to claim 1 or 2, characterized in that: The support plate (300) is provided with two first connecting blocks (303), each first connecting block (303) is connected to a vertical plug (301), the projection line of the two plugs (301) passes through the center of the throttle plate (102), and the projection line of the two plugs (301) is perpendicular to the projection of the throttle shaft (101).

4. The plug-type angle-fixing device for a throttle body shaft according to claim 3, characterized in that: The top surface of the support plate (300) is provided with a positioning pin (302) for positioning the throttle body (100); the first connecting rod (201) is bent, and the bend of the first connecting rod (201) is axially connected to the first fixed seat (202).

5. The plug-type angle-fixing device for a throttle body shaft according to claim 4, characterized in that: In the throttle body (100), the throttle plate (102) is divided into a higher half throttle plate (102) and a lower half throttle plate (102) by the throttle shaft (101). The movable end of the second drive mechanism (203) corresponds to the higher half throttle plate (102).

6. The plug-type angle-fixing device for a throttle body shaft according to claim 5, characterized in that: The upper pressure block (204) and the support plate (300) press the throttle body (100) together; the bottom of the upper pressure block (204) is arc-shaped; the bottom of the upper pressure block (204) is provided with an elastic part.

7. The plug-type angle-fixing device for a throttle body shaft according to claim 6, characterized in that: The support plate (300) has a hollow part (306) at the position corresponding to the throttle passage (103); the support plate (300) is connected to the air supply pipe (307), one end of the air outlet of the air supply pipe (307) corresponds to the hollow part (306) and is connected to the throttle passage (103), and the other end of the air inlet of the air supply pipe (307) is connected to the air outlet of the vacuum pump (309).

8. The plug-type angle-fixing device for a throttle body shaft according to claim 7, characterized in that: The first drive mechanism (200) is a first cylinder, the bottom of the first cylinder is shaft-connected to the first connecting plate (205), the first connecting plate (205) is fixed on the first base (206), and the first base (206) is fixed on the first base plate (207); The bottom of the first fixed seat (202) is connected to the first base plate (207) via the second base (208); The second drive mechanism (203) is the second cylinder.

9. The plug-type angle-fixing device for a throttle body shaft according to claim 8, characterized in that: The stopper (301) type angle fixing device includes a worktable (310) and a control mechanism, with a first base plate (207) fixed on the worktable (310); The gas supply pipe (307) passes through the workbench plate (310) and is connected to the vacuum pump (309) located below the workbench plate (310); The gas delivery pipe (307) is fixed to the workbench (310) via the second base plate (308); The control mechanism controls the operation of the first drive mechanism (200), the second drive mechanism (203), and the vacuum pump (309).

10. A plug-type angle-fixing device for a throttle body shaft according to claim 9, characterized in that: An air flow detector is also installed inside the gas pipeline (307); The top surface of the support plate (300) is provided with a groove (311) on the outside of the hollow part (306). A sealing part is provided in the groove (311), and the top of the sealing part corresponds to the edge of the throttle passage (107) of the throttle body (100).

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