A hybrid vehicle electronic throttle body air tightness detection device

Abstract

The present invention relates to the technical field of automobile parts detection, and discloses an air tightness detection device for an electronic throttle body of a hybrid vehicle, comprising two sealing plugs for blocking both sides of the throttle body, and also comprising an electric screw slide, a mounting bracket movably provided on the electric screw slide, ear plates provided on both sides of the mounting bracket, an indicator rod slidably plugged on the ear plates, an air cavity shell connected on both sides of the sealing plug, and an indicator assembly connected to the air cavity shell for driving the indicator rod to move laterally after the throttle body is inflated, so as to observe the inflation effect and the air retention effect; after the electronic valve plate is rotated and opened, it is inflated, and if the indicator rod takes too long to move to the target position, the rotation angle of the electronic throttle body valve plate is unqualified, and the movement of different numbers of racks can be triggered by the linkage of the indicator rod and the distinguisher, thereby changing the lateral position of the mounting bracket, so as to make different distinctions in the detection results and improve the intuitiveness of the detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts detection, in particular to an air tightness detection device for an electronic throttle body of a hybrid electric vehicle. Background Art

[0002] In related technologies, the electronic throttle body is the core actuator of the Electronic Throttle Control System (ETCS), replacing the traditional mechanical throttle. It precisely regulates engine air intake through electronic signals. When the motor is running, it rotates the metal valve disc, which changes the cross-sectional area of the intake passage, directly controlling air flow.

[0003] When the engine is idling, the throttle valve maintains a very small gap, allowing a small amount of air to enter the combustion chamber to ensure basic combustion. This slightly open throttle valve at idle is essential for stable engine operation, ensuring basic combustion while preventing mechanical damage and emissions degradation. Existing electronic throttle body air tightness testing requires placing the entire valve body in a sealed space, inflating it, and observing changes in air volume. While this method can determine air tightness, the assessment is relatively general and cannot identify the cause of failure. Therefore, it does not meet existing requirements. Therefore, we have proposed an air tightness testing device for hybrid electric vehicle electronic throttle bodies. Summary of the Invention

[0004] The present invention provides an air tightness detection device for an electronic throttle body of a hybrid vehicle. The air tightness detection device for an electronic throttle body of a hybrid vehicle can trigger the movement of different numbers of racks through the linkage of an indicator rod and a distinguisher, thereby changing the lateral position of a mounting frame, thereby making different distinctions in the detection results and improving the intuitiveness of the detection results. It solves the problem mentioned in the above background technology that when performing air tightness detection on an existing electronic throttle body, the valve body as a whole needs to be placed in a sealed space, inflated to maintain air, and the change in air volume needs to be observed. Although this type of detection can detect whether the air tightness is qualified, the judgment is relatively general and the cause of the failure cannot be distinguished.

[0005] To achieve the above objectives, the present disclosure provides a hybrid vehicle electronic throttle body air tightness detection device, comprising two sealing plugs for blocking both sides of the throttle body, and an electric screw slide, wherein a mounting frame is movably provided on the electric screw slide, and lugs are provided on both sides of the mounting frame, and an indicator rod is slidably inserted on the lugs, and an air cavity shell is connected to both sides of the sealing plug, and the air cavity shell is connected to an indicator assembly for driving the indicator rod to move laterally after the throttle body is inflated to observe the inflation effect and air retention effect;

[0006] The electronic valve plate is rotated and opened to inflate. If it takes too long for the indicator rod to move to the target position, the rotation angle of the electronic throttle body valve plate is unqualified.

[0007] Optionally, a vent is provided on the sealing plug, and a sliding plug plate for sealing the vent is slidably installed on the sealing plug, a connecting rod is detachably connected to the other side of the sliding plug plate, a rod hole is provided on the ear plate, the connecting rod passes through the rod hole, a travel spring is sleeved on the connecting rod, a traveling ball is fixedly installed on the end of the connecting rod, the travel spring is located between the ear plate and the traveling ball, a travel plate is provided on the side of the electric screw slide, a first sliding surface and a second sliding surface are provided on the side of the travel plate adjacent to the traveling ball, and the traveling ball slides intermittently with the first sliding surface and the second sliding surface.

[0008] Optionally, the first sliding surface is provided with two sections and is respectively located on both sides of the second sliding surface, the distance between the second sliding surface and the adjacent ear plate is smaller than the distance between the first sliding surface and the adjacent ear plate, and the first sliding surface and the second sliding surface are connected by a chamfered inclined surface.

[0009] Optionally, the indication assembly includes a movable seat slidably mounted on the mounting frame, the movable seat is provided with a card table and an end plate, the end plate is connected to an indication spring, the indication spring is sleeved on the outside of the indication rod, the indication assembly also includes an air bag column connected to the air cavity shell, the air bag column interferes with the ear plate away from the indicator rod.

[0010] Optionally, the indication assembly includes a pneumatic telescopic rod connected to the air cavity shell, the indication rod is fixedly connected to the other end of the pneumatic telescopic rod, the pneumatic telescopic rod outer sleeve is provided with an indication spring, and one end of the indication spring is connected to the end of the pneumatic telescopic rod.

[0011] Optionally, the electric screw slide is equipped with an electric slide block, the electric slide block is equipped with a mechanical screw slide, the mechanical screw slide is equipped with a movable slide block, and the mounting frame is fixedly mounted on the movable slide block.

[0012] Optionally, the mechanical screw slide includes a rotatably mounted screw shaft, a distinguishing gear is fixedly mounted on the end of the screw shaft, a vertical plate is provided on the side of the electric screw slide, a rack is slidably provided on the side of the vertical plate, a fixed rod is fixedly mounted on the vertical plate, a distinguisher is provided on the fixed rod, and the distinguisher is in transmission cooperation with the rack;

[0013] When the indicator rod touches the distinguisher, the rack slides, so that the distinguishing gear is engaged with the rack, thereby changing the position of the electronic throttle body when it reaches the end point.

[0014] Optionally, the discriminator includes a handle fixedly mounted on the fixed rod, the handle is hinged with a rotating arm, a tension spring is connected between the handle and the rotating arm, and a damping part is commonly provided on the handle and the rotating arm.

[0015] Optionally, a shifting platform is installed on the side of the vertical plate, a slider is slidably installed on the shifting platform, the slider is fixedly connected to the rack, a rope hole is opened on the shifting platform, a steel cable is connected to the side of the slider, the steel cable passes through the rope hole, a rope groove is opened on the side of the vertical plate, a guide wheel is installed on the side of the rope groove, a changing wheel is provided on the side of the vertical plate, the other end of the steel cable passes through the rope groove, passes through the guide wheel and the changing wheel, and is fixedly connected to the rotating arm.

[0016] Optionally, the distinguisher, the position changing platform, the steel cable and the direction-changing wheel are provided in three corresponding groups, and the three distinguishers are provided side by side.

[0017] Through the above technical solution, the hybrid vehicle electronic throttle body air tightness detection device provided by the present disclosure has the following features: when the indicator rod moves to different positions, it represents different detection results. The detection results are extended by the change of the indicator rod at the fixed point position, and multiple results can be displayed, making the detection results more accurate and effective, thereby improving the detection efficiency and effect.

[0018] Through the linkage of the indicator rod and the distinguisher, the movement of different numbers of racks can be triggered, thereby changing the lateral position of the placement frame, thereby making different distinctions in the test results and improving the intuitiveness of the test results.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure.

[0023] Figure 3 It is a schematic diagram of the overall explosion structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the overall main structure of the present invention.

[0025] Figure 5It is a partial three-dimensional structural schematic diagram of the present invention.

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point B.

[0027] Figure 7 This is a schematic diagram of the structure of an indicator component of the present invention.

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the three-dimensional structure of the mobile seat of the indicator component.

[0029] Figure 9 This is another structural diagram of an indicator component of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of the discriminator of the present invention in normal state.

[0031] Figure 11 This is a schematic diagram of the structure of the discriminator after triggering of the present invention.

[0032] Figure 12 This is a schematic diagram of the structure of the rack before movement of the present invention.

[0033] Figure 13 This is a schematic diagram of the structure of the rack after movement of the present invention.

[0034] Explanation of reference numerals: 10, electric screw slide; 20, electric slide block; 30, mechanical screw slide; 31, screw shaft; 40, movable slide block; 50, sealing plug; 51, vent; 110, air chamber shell; 120, airbag column; 130, pneumatic telescopic rod; 310, distinguishing gear; 320, vertical plate; 321, rope groove; 322, guide wheel; 330, fixing rod; 340, distinguisher; 341, handle; 342, rotating arm; 343, tension spring; 344, damping part; 350, Changing wheel; 360, steel cable; 370, shifting platform; 371, rack; 372, slider; 373, shifting spring; 374, rope hole; 410, mounting frame; 420, ear plate; 430, moving seat; 440, card table; 450, end plate; 460, indicator rod; 470, indicator spring; 510, sliding plug plate; 520, connecting rod; 530, travel spring; 540, rod hole; 550, travel ball; 560, travel plate; 570, first sliding surface; 580, second sliding surface. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0036] In the description of the present disclosure, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. The terms "first" and "second" are used to distinguish one element from another and do not have sequentiality or importance. In addition, when the following description refers to the drawings, the same figure marks in different drawings represent the same or similar elements, which are not repeated in this disclosure.

[0037] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0038] According to some embodiments of the present disclosure, a hybrid vehicle electronic throttle body air tightness detection device is provided, referring to Figures 1-13 As shown in the figure, the hybrid vehicle electronic throttle body air tightness detection device includes two sealing plugs 50 for blocking both sides of the throttle body, and also includes an electric screw slide 10, on which a mounting frame 410 is movably provided, and ear plates 420 are provided on both sides of the mounting frame 410, and an indicator rod 460 is slidably inserted on the ear plate 420, and air cavity shells 110 are connected on both sides of the sealing plug 50, and the air cavity shell 110 is connected to an indicator assembly, which is used to drive the indicator rod 460 to move laterally after the throttle body is inflated to observe the inflation effect and the air retention effect.

[0039] After the electronic valve plate is rotated and opened for inflation, if it takes too long for the indicator rod 460 to move to the target position, the rotation angle of the electronic throttle body valve plate is unqualified.

[0040] In this way, the different moving positions of the indicator rod 460 represent different test results. The test results are extended by the changes in the fixed position of the indicator rod 460, and three results can be displayed, making the test results more accurate and effective, and improving the test efficiency and effect.

[0041] In addition, the electric lead screw slide 10 is equipped with an electric slide block 20 , the electric lead screw slide 20 is equipped with a mechanical lead screw slide 30 , the mechanical lead screw slide 30 is equipped with a movable slide block 40 , and the mounting frame 410 is fixedly mounted on the movable slide block 40 .

[0042] The mechanical screw slide 30 includes a rotatably mounted screw shaft 31, a distinguishing gear 310 is fixedly mounted on the end of the screw shaft 31, a vertical plate 320 is provided on the side of the electric screw slide 10, a rack 371 is slidably provided on the side of the vertical plate 320, a fixed rod 330 is fixedly mounted on the vertical plate 320, a distinguisher 340 is provided on the fixed rod 330, and the distinguisher 340 is in transmission cooperation with the rack 371.

[0043] See Figure 12 and Figure 13 When the indicator rod 460 touches the distinguisher 340, the rack 371 slides, causing the distinguishing gear 310 to mesh with the rack 371, thereby changing the position of the electronic throttle body when it reaches the end point.

[0044] Furthermore, the distinguisher 340 includes a handle 341 fixedly mounted on the fixed rod 330, the handle 341 is hinged with a rotating arm 342, a tension spring 343 is connected between the handle 341 and the rotating arm 342, and a damping part 344 is commonly provided on the handle 341 and the rotating arm 342. In this embodiment, the damping part 344 is set as a serrated part or covered with a silicone layer.

[0045] See Figure 10 and Figure 11 The opening and closing angle between the handle 341 and the rotating arm 342 is set to Z. Under normal conditions, Z is greater than 180 degrees, so the tension spring 343 is in a stretched state but has no tendency to return. Due to the over-center structure, the direction of the tension spring torque is opposite to the direction of the rotating arm's movement, forming a self-locking state. Furthermore, the damping unit 344 is provided to increase the frictional resistance between the handle 341 and the rotating arm 342 under normal conditions. The damping unit 344 suppresses the slight vibration of the rotating arm 342 through frictional resistance, ensuring that the distinguisher remains absolutely stationary in the non-triggered state. When the indicator rod 460 touches the rotating arm 342, the rotating arm 342 is bent, making Z less than 180 degrees. At this time, the tension spring 343 rebounds, pulling the rotating arm 342 to quickly rotate upward. By combining geometric constraints with elastic energy storage, high-reliability triggering is achieved.

[0046] Specifically, a shifting platform 370 is installed on the side of the vertical plate 320, and a slider 372 is slidably installed on the shifting platform 370. The slider 372 is fixedly connected to the rack 371. A rope hole 374 is provided on the shifting platform 370, and a steel cable 360 is connected to the side of the slider 372. The steel cable 360 passes through the rope hole 374. A rope groove 321 is provided on the side of the vertical plate 320, and a guide wheel 322 is installed on the side of the rope groove 321. A changing wheel 350 is provided on the side of the vertical plate 320. The other end of the steel cable 360 passes through the rope groove 321, passes through the guide wheel 322 and the changing wheel 350, and is fixedly connected to the rotating arm 342.

[0047] The ends of the steel cables 360 are provided with tension adjustment nuts to compensate for the length tolerance of the steel cables. The three sets of the differentiators 340, the position changing platforms 370, the steel cables 360 and the direction-changing wheels 350 are provided in correspondence, and the three differentiators 340 are provided side by side.

[0048] The three distinguishers 340 are arranged side by side, representing different air tightness levels respectively. If the distinguisher 340 closest to the electric screw slide 10 is triggered alone, it means that the valve plate gap is too large and there is too much air leakage, the air tightness is poor, and it is unqualified.

[0049] If the middle discriminator 340 and the nearest discriminator 340 are triggered together, it means that the leakage amount is within the normal range and the test result is qualified.

[0050] If all three differentiators 340 are triggered, the valve plate is closed too deeply, the opening and closing angle is too small, resulting in insufficient air leakage. When the engine is idling, the throttle body will maintain a very small gap, allowing a small amount of air to enter the combustion chamber to ensure basic combustion requirements. The slightly open throttle body at idle is necessary for stable engine operation, ensuring basic combustion requirements while preventing mechanical damage and deteriorating emissions. This substandard electronic throttle body, when used, may prevent the vehicle's fuel from fully burning due to insufficient air, leading to carbon deposits on the throttle body or intake manifold, and therefore fails to meet the standards.

[0051] Through the above technical solution, when the hybrid vehicle electronic throttle body air tightness detection device provided by the present invention is in use, the rotating arm 342 pulls the steel cable 360 when it rotates upward, so that the steel cable 360 pulls the slider 372 to move. At this time, the displacement spring 373 is compressed, and the rack 371 moves to the path of the distinguishing gear 310, so that the distinguishing gear 310 engages with the rack 371 when passing by, thereby driving the screw shaft 31 to rotate, changing the position of the moving sliding block 40, and achieving the change of the terminal position of the mounting bracket 410 when the detection is completed. The detection results of the electronic throttle body in different situations are directly distinguished by the position of the mounting bracket 410, and the air tightness detection results are subdivided into three categories: excessive leakage, normal, and too little leakage. Compared with the traditional single pass / fail judgment, it is more accurate.

[0052] It should be noted that the electric screw slide 10 and the mechanical screw slide 30 are both existing technologies.

[0053] In some embodiments, an indicator assembly is connected to the air chamber housing 110 for driving the indicator rod 460 to move laterally after the throttle body is inflated to observe the inflation effect and the air retention effect. Figure 7-Figure 8 As shown in the figure, the indicating assembly includes a movable seat 430 slidably mounted on the mounting frame 410, and a card table 440 and an end plate 450 are provided on the movable seat 430. The end plate 450 is connected to an indicating spring 470, and the indicating spring 470 is sleeved on the outside of the indicating rod 460. The indicating assembly also includes an air bag column 120 connected to the air cavity shell 110, and the air bag column 120 is in conflict with the ear plate 420 away from the indicating rod 460.

[0054] The airbag column 120 is configured as a column with a folded airbag at the end. The airbag column 120 is provided on the side of the two sealing plugs 50. The two airbag columns 120 are in contact with the side of the ear plate 420. After inflation, the airbag column 120 expands and stretches, pushing the end plate 450 to move, thereby overcoming the force of the indicator spring 470 and driving the indicator rod 460 to move. When retaining air, the vent 51 is opened, and the rebound pressure of the indicator spring 470 causes the internal gas to escape outward.

[0055] In other embodiments, an indicator assembly is connected to the air chamber housing 110 for driving the indicator rod 460 to move laterally after the throttle body is inflated to observe the inflation effect and the air retention effect. Figure 9 As shown in the figure, the indicator assembly includes a pneumatic telescopic rod 130 connected to the air cavity shell 110, the indicator rod 460 is fixedly connected to the other end of the pneumatic telescopic rod 130, and the pneumatic telescopic rod 130 is provided with an indicator spring 470, one end of the indicator spring 470 is connected to the end of the pneumatic telescopic rod 130.

[0056] The pneumatic telescopic rod 130 is configured as a combination of an air column and a sleeve. After inflation, the air column pushes outward, thereby driving the indicator rod 460 to move outward, overcoming the force of the indicator spring 470. When retaining air, the vent 51 is open, and the rebound pressure of the indicator spring 470 causes the internal gas to escape outward.

[0057] In some embodiments of the present disclosure, reference Figures 1-6As shown in the figure, a vent 51 is provided on the sealing plug 50, and a sliding plug plate 510 for sealing the vent 51 is slidably installed on the sealing plug 50, and a connecting rod 520 is detachably connected to the other side of the sliding plug plate 510, and a rod hole 540 is provided on the ear plate 420, and the connecting rod 520 passes through the rod hole 540, and a travel spring 530 is sleeved on the connecting rod 520, and a traveling ball 550 is fixedly installed on the end of the connecting rod 520, and the travel spring 530 is located between the ear plate 420 and the traveling ball 550, and a travel plate 560 is provided on the side of the electric screw slide 10, and a first sliding surface 570 and a second sliding surface 580 are provided on the side of the travel plate 560 adjacent to the traveling ball 550, and the traveling ball 550 slides intermittently with the first sliding surface 570 and the second sliding surface 580.

[0058] Among them, the first sliding surface 570 is provided with two sections and is located on both sides of the second sliding surface 580 respectively. The distance between the second sliding surface 580 and the adjacent ear plate 420 is smaller than the distance between the first sliding surface 570 and the adjacent ear plate 420. The first sliding surface 570 and the second sliding surface 580 are connected by a chamfered inclined surface.

[0059] Specifically, the connecting rod 520 and the end of the sliding plug plate 510 are detachably connected, and can be connected by a snap-fit connection or by a bolt connection.

[0060] Through the above technical solution, when the hybrid vehicle electronic throttle body air tightness detection device provided by the present disclosure is in use, when the operator installs the sealing plug 50 on both sides of the electronic throttle body, the vent 51 is opened to ensure that the internal air pressure of the throttle body is balanced with the ambient air pressure when the sealing plug 50 is installed, eliminate the interference of the initial pressure difference on the detection result, and ensure the consistency of the detection.

[0061] The electric screw slide 10 is started and the electronic throttle body is started at the same time, the throttle valve plate opens to take in air, and the travel ball 550 slides along the first sliding surface 570 to the second sliding surface 580, so that the stroke spring 530 is compressed and the connecting rod 520 moves, thereby driving the sliding plug plate 510 to block the vent 51, realizing automatic sealing and ensuring a closed environment for inflation.

[0062] When the travel ball 550 moves to the second section first sliding surface 570, the electronic throttle body valve plate rotates to the idle state, the travel spring 530 rebounds, and the vent 51 opens again. At this time, the air retention effect of the throttle body begins to be tested.

[0063] When the sealing plug 50 is installed, the internal and external air pressures are instantly balanced through the vent 51, eliminating the initial pressure difference as much as possible, so that all the tested parts can start testing under zero pressure difference state, which improves the detection accuracy. Through dynamic pressure balance, automatic sealing linkage and real working condition simulation, diversified automated detection can be carried out, which significantly improves the detection accuracy, efficiency and safety.

[0064] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0066] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A hybrid electric vehicle electronic throttle body air tightness detection device, comprising two sealing plugs (50) for blocking both sides of the throttle body, characterized in that: The electric screw slide (10) is also included. A mounting frame (410) is movably provided on the electric screw slide (10). Ear plates (420) are provided on both sides of the mounting frame (410). An indicator rod (460) is slidably plugged into the ear plates (420). An air cavity shell (110) is connected to both sides of the sealing plug (50). The air cavity shell (110) is connected to an indicator assembly for driving the indicator rod (460) to move laterally after the throttle body is inflated, so as to observe the inflation effect and the air retention effect. After the electronic valve plate is rotated and opened, air is inflated. If the indicator rod (460) takes too long to move to the target position, the rotation angle of the electronic throttle body valve plate is unqualified; The sealing plug (50) is provided with a vent (51), a sliding plug plate (510) is slidably mounted on the sealing plug (50), a connecting rod (520) is detachably connected to the other side of the sliding plug plate (510), a rod hole (540) is provided on the ear plate (420), the connecting rod (520) passes through the rod hole (540), a travel spring (530) is sleeved on the connecting rod (520), a traveling ball (550) is fixedly mounted on the end of the connecting rod (520), a travel plate (560) is provided on the side of the electric screw slide (10), a first sliding surface (570) and a second sliding surface (580) are provided on the side of the travel plate (560) adjacent to the traveling ball (550), and the traveling ball (550) slides intermittently with the first sliding surface (570) and the second sliding surface (580).

2. The hybrid vehicle electronic throttle body air tightness detection device according to claim 1, characterized in that: The sliding plug plate (510) is used to block the vent (51), and the travel spring (530) is located between the ear plate (420) and the travel ball (550).

3. The hybrid vehicle electronic throttle body air tightness detection device according to claim 2, characterized in that: The first sliding surface (570) is provided with two sections and is respectively located on both sides of the second sliding surface (580); the distance between the second sliding surface (580) and the adjacent ear plate (420) is smaller than the distance between the first sliding surface (570) and the adjacent ear plate (420); the first sliding surface (570) and the second sliding surface (580) are connected by a chamfered inclined surface.

4. The hybrid vehicle electronic throttle body air tightness detection device according to claim 1, characterized in that: The indicating assembly includes a movable seat (430) slidably mounted on the mounting frame (410), a card table (440) and an end plate (450) are provided on the movable seat (430), an indicating spring (470) is connected to the end plate (450), and the indicating spring (470) is sleeved on the outside of the indicating rod (460). The indicating assembly also includes an air bag column (120) connected to the air cavity shell (110), and the air bag column (120) is in conflict with the ear plate (420) away from the indicating rod (460).

5. The hybrid vehicle electronic throttle body air tightness detection device according to claim 1, characterized in that: The indicating assembly comprises a pneumatic telescopic rod (130) connected to the air cavity housing (110), the indicating rod (460) being fixedly connected to the other end of the pneumatic telescopic rod (130), an indicating spring (470) being provided on the outer sleeve of the pneumatic telescopic rod (130), and one end of the indicating spring (470) being connected to the end of the pneumatic telescopic rod (130).

6. A hybrid vehicle electronic throttle body air tightness detection device according to claim 4 or claim 5, characterized in that: The electric screw slide (10) is equipped with an electric slide block (20), the electric slide block (20) is equipped with a mechanical screw slide (30), the mechanical screw slide (30) is equipped with a movable slide block (40), and the mounting frame (410) is fixedly mounted on the movable slide block (40).

7. The hybrid vehicle electronic throttle body air tightness detection device according to claim 6, characterized in that: The mechanical screw slide (30) includes a rotatably mounted screw shaft (31), a distinguishing gear (310) is fixedly mounted on the end of the screw shaft (31), a vertical plate (320) is provided on the side of the electric screw slide (10), a rack (371) is slidably provided on the side of the vertical plate (320), a fixed rod (330) is fixedly mounted on the vertical plate (320), a distinguisher (340) is provided on the fixed rod (330), and the distinguisher (340) is in transmission cooperation with the rack (371); When the indicator rod (460) contacts the distinguisher (340), the rack (371) slides, causing the distinguishing gear (310) to mesh with the rack (371), thereby changing the position of the electronic throttle body when it reaches the end point.

8. The hybrid vehicle electronic throttle body air tightness detection device according to claim 7, characterized in that: The discriminator (340) includes a handle (341) fixedly mounted on the fixed rod (330), the handle (341) being hinged with a rotating arm (342), a tension spring (343) being connected between the handle (341) and the rotating arm (342), and a damping portion (344) being provided on both the handle (341) and the rotating arm (342).

9. The hybrid vehicle electronic throttle body air tightness detection device according to claim 8, characterized in that: A shifting platform (370) is installed on the side of the vertical plate (320), a slider (372) is slidably installed on the shifting platform (370), the slider (372) is fixedly connected to the rack (371), a rope hole (374) is opened on the shifting platform (370), a steel cable (360) is connected to the side of the slider (372), the steel cable (360) passes through the rope hole (374), a rope groove (321) is opened on the side of the vertical plate (320), a guide wheel (322) is installed on the side of the rope groove (321), a direction-changing wheel (350) is provided on the side of the vertical plate (320), the other end of the steel cable (360) passes through the rope groove (321), passes through the guide wheel (322) and the direction-changing wheel (350), and is fixedly connected to the rotating arm (342).

10. The hybrid vehicle electronic throttle body air tightness detection device according to claim 9, characterized in that: The divider (340), the position changing platform (370), the steel cable (360), and the direction-changing wheel (350) are arranged in three corresponding groups, and the three dividers (340) are arranged side by side.

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