Self-locking sealing automobile air throttle body

Abstract

The utility model discloses a self-locking and sealing automobile air throttle body, belongs to the technical field of automobile accessories, and provides an automobile air throttle body capable of reducing the damage probability of an engine. The automobile air throttle body comprises a shell and an executing mechanism, a main body part of the shell is a valve seat with two through ends, and the two ends of the valve seat are provided with connecting ends; the inner wall of the valve seat is provided with a pair of inner planes parallel to each other, the portion, located between the two inner planes, of the inner wall of the valve seat is an inner arc face, the inner arc face of the valve seat is provided with a baffle, coaxial through shaft holes are formed in the two inner planes of the valve seat, and the axis of the through shaft holes is perpendicular to the axis of the valve seat in different planes. The executing mechanism comprises a valve handle, one end of the valve handle is fixedly connected with a clamping shaft, and the end of the clamping shaft penetrates through the through shaft hole to be connected with a valve clack. The valve clack structure rotating eccentrically is designed, air flow generated by negative pressure can achieve automatic deflection sealing after the driving mechanism unloads force, and the damage probability caused by engine trade starting under the force unloading state of the driving mechanism is effectively reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile accessories, and in particular to a self-locking and sealing automobile air intake valve body. BACKGROUND

[0002] The automobile air intake valve is a component for controlling the air intake amount of an engine, the output power of the engine is adjusted by changing the air intake amount, the valve flap inside the air intake valve is driven by a driving mechanism controlled by the engine, when the driving mechanism fails, the angle of the valve flap cannot be adjusted, but as long as the air intake valve is not completely closed, the engine can still be started normally, if the vehicle is turned off and is in a water crossing state, starting the engine will cause serious damage due to water suction. SUMMARY

[0003] The application aims to provide an automobile air intake valve body with a self-locking and sealing function, which can reduce the damage probability of the engine.

[0004] To achieve the above purpose, the application provides a self-locking and sealing automobile air intake valve body, which comprises a shell and an executing mechanism, the main body part of the shell is a valve seat with through holes at both ends, the two ends of the valve seat are provided with connecting ends, the inner wall of the valve seat is provided with a pair of mutually parallel inner planes, the part between the two inner planes of the inner wall of the valve seat is an inner arc surface, the inner arc surface of the valve seat is provided with a baffle, the valve seat is provided with a coaxial through shaft hole in the two inner planes, the axis of the through shaft hole is perpendicular to the axis of the valve seat; the executing mechanism comprises a valve handle, one end of the valve handle is fixedly connected with a clamping shaft, the end of the clamping shaft is connected with a valve flap through the through shaft hole, when the valve flap is in contact with the end face of the baffle, the flat plate-shaped valve flap is perpendicular to the axis of the valve seat, at this time, the air intake valve is completely closed.

[0005] As a preferred, the outer side surface of the valve flap is provided with a pair of parallel smooth surfaces, which are suitable for contacting the inner planes to form a sliding pair, the valve flap is provided with a pin hole in the smooth surface, the end of the clamping shaft is provided with a clamping groove, which is suitable for clamping the side of the smooth surface of the valve flap, and the inner wall of the clamping groove is further provided with a latch, which is suitable for inserting into the pin hole to prevent the valve flap from moving relative to the clamping shaft.

[0006] As a preferred, the valve handle of the executing mechanism has two, the two valve handles are commonly connected with a bridging rod at the end away from the clamping shaft, and the valve handle is further provided with a connecting shaft hole, which is used for matching the output end of the driving mechanism of the air intake valve.

[0007] As a preferred, the outer side surface of the valve seat is further provided with a mounting plate, the mounting plate is provided with a connecting hole, and a bolt or the like connecting piece passes through the connecting hole to realize the fixed installation of the entire air intake valve.

[0008] As a preferred, the connecting end of the valve seat at both ends is respectively an air inlet connecting end and an air outlet connecting end, the outer side of the air inlet connecting end is provided with a first snap ring, and the outer side of the air outlet connecting end is provided with a second snap ring, so as to enhance the connection stability of the external pipeline.

[0009] As a preferred, the baffle is divided into a first baffle and a second baffle, projections of the first baffle and the second baffle on a plane perpendicular to the inner plane do not coincide, and the axis of the through shaft hole is located between the first baffle and the second baffle, and the two baffles are located in the two inner camber surfaces of the valve seat respectively.

[0010] As a preferred, the end faces of the first baffle and the second baffle are both perpendicular to the axis of the valve seat, and the valve flap is adapted to be in contact with the end faces of the first baffle and the second baffle at the same time, so as to completely cut off the air inlet end and the air outlet end of the throttle valve.

[0011] As a preferred, the inner wall of the valve seat is provided with an embedded groove between the end faces of the first baffle and the second baffle, and a sealing ring is arranged in the embedded groove, so as to be tightly fitted with the edge of the valve flap and ensure the sealing performance when the throttle valve is closed.

[0012] Compared with the prior art, the application has the beneficial effects that:

[0013] (1) By designing the eccentric rotation valve flap structure, the air flow generated by negative pressure can realize automatic deflection sealing after the driving mechanism is unloaded, so as to effectively reduce the damage probability caused by the reckless start of the engine under the unloaded state of the driving mechanism;

[0014] (2) The design structure is simple, the use cost is low, the self-locking response is timely and rapid, and it can also help the maintenance personnel to judge whether the driving mechanism of the throttle valve can work normally, so as to facilitate the maintenance operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the self-locking sealing automobile throttle valve body.

[0016] Figure 2 It is a sectional view of the three-dimensional structure of the self-locking sealing automobile throttle valve body.

[0017] Figure 3 It is a sectional view of the three-dimensional structure of the self-locking sealing automobile throttle valve body.

[0018] Figure 4 It is a sectional view of the three-dimensional structure of the self-locking sealing automobile throttle valve body.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve flap and the actuator of the self-locking sealing automobile throttle valve body.

[0020] Figure 6 The self-locking sealed automobile throttle valve body's actuator's perspective structure schematic view.

[0021] Figure 7 The self-locking sealed automobile throttle valve body's Figure 6 The A place partial enlarged view of the self-locking sealed automobile throttle valve body.

[0022] Figure 8 The self-locking sealed automobile throttle valve body's valve's perspective structure cross-sectional view.

[0023] In the figure: 1, actuator; 101, bridging rod; 120, valve handle; 121, adapter shaft hole; 130, clamping shaft; 131, clamping groove; 132, bolt; 2, shell; 210, valve seat; 211, embedded groove; 212, through shaft hole; 213, first baffle; 214, second baffle; 215, inner flat surface; 216, inner arc surface; 220, mounting plate; 221, connecting hole; 230, air inlet connecting end; 231, first clamping ring; 240, exhaust connecting end; 241, second clamping ring; 3, valve; 301, smooth surface; 302, pin hole; 4, sealing ring. DETAILED DESCRIPTION

[0024] In the following, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments, without conflict.

[0025] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figures 1-8 The self-locking, sealed automotive throttle valve body shown includes a housing 2 and an actuator 1. The housing 2 is generally cylindrical, with most of the actuator 1 located outside the housing 2. The main body of the housing 2 is a valve seat 210 with both ends extending through it. The outer side of the valve seat 210 also has a mounting plate 220 with connecting holes 221 for bolts and other connecting parts to pass through, thus fixing the entire throttle valve to the frame. Both ends of the valve seat 210 have connecting ends for insertion and connection with the intake and exhaust pipes. In other words, the valve seat 21... The two ends of the 0 are the intake connection end 230 and the exhaust connection end 240, respectively. The intake connection end 230 is inserted into the intake pipe, and the exhaust connection end 240 is inserted into the exhaust pipe. The outer side of the intake connection end 230 is provided with a coaxial first retaining ring 231, which is used to increase the contact friction with the inner wall of the intake pipe. Under the constraint of the outer clamp of the inner intake pipe, the probability of loosening can be effectively reduced. The outer side of the exhaust connection end 240 is provided with a coaxial second retaining ring 241, which is also used to reduce the probability of the exhaust pipe loosening.

[0029] The inner wall of the valve seat 210 has a pair of parallel inner planes 215. The portion of the inner wall of the valve seat 210 located between the two inner planes 215 is an inner arc surface 216, forming a non-cylindrical cavity structure inside the valve seat 210. The inner arc surface 216 of the valve seat 210 has a baffle. The cross-section of the baffle along the direction perpendicular to the axis of the valve seat 210 is arc-shaped. The valve seat 210 has coaxial through shaft holes 212 in the two inner planes 215. The axis of the through shaft hole 212 is perpendicular to the axis of the valve seat 210. That is to say, the axis of the through shaft hole 212 cannot be in the same plane as the axis of the valve seat 210. This is the key to realizing the self-locking sealing function.

[0030] The actuator 1 includes a valve handle 120 located outside the housing 2. One end of the valve handle 120 is fixedly connected to a snap-fit ​​shaft 130. The actuator 1 has two valve handles 120. The ends of the two valve handles 120 away from the snap-fit ​​shaft 130 are connected to a bridging rod 101. The end of the bridging rod 101 can be connected to the valve handle 120 through a connecting rod. The valve handle 120 is also provided with a connecting shaft hole 121 for cooperating with the output end of the drive mechanism, thereby applying external force to the actuator 1 to change the working state of the throttle valve.

[0031] The end of the clamping shaft 130 is connected with the valve disc 3 through the through shaft hole 212, the clamping shaft 130 and the through shaft hole 212 form a rotary pair, the outer side surface of the valve disc 3 has a pair of parallel smooth surfaces 301, the rest of the outer side surface of the valve disc 3 is a circular arc surface, the smooth surfaces 301 are in contact with the inner flat surface 215 to form a sliding pair, the circular arc surface can be in contact with the inner arc surface 216, the valve disc 3 is provided with a pin hole 302 in the smooth surface 301, the axis of the pin hole 302 is also vertical to the axis of the valve disc 3, the end of the clamping shaft 130 is provided with a clamping groove 131, which is clamped with the side of the smooth surface 301 of the valve disc 3, and the inner wall of the clamping groove 131 is also provided with a latch 132, which is inserted into the pin hole 302, so that the valve disc 3 and the clamping shaft 130 are clamped, and the valve disc 3 will not move up and down relative to the clamping shaft 130, and has good stability.

[0032] The baffle in the valve seat 210 is divided into a first baffle 213 and a second baffle 214, the projections of the first baffle 213 and the second baffle 214 on the plane perpendicular to the inner flat surface 215 do not coincide, and the axis of the through shaft hole 212 is located between the first baffle 213 and the second baffle 214, that is, the first baffle 213 and the second baffle 214 are located in the two inner arc surfaces 216 in the valve seat 210 respectively, the end surfaces of the first baffle 213 and the second baffle 214 are both perpendicular to the axis of the valve seat 210, the valve disc 3 can be in contact with the end surfaces of the first baffle 213 and the second baffle 214 at the same time, so when the valve disc 3 is in contact with the end surfaces of the baffles, the flat valve disc 3 is also perpendicular to the axis of the valve seat 210, at this time the throttle valve is in a closed state.

[0033] The inner wall of the valve seat 210 is provided with an embedded groove 211 between the end surfaces of the first baffle 213 and the second baffle 214, the plane of the embedded groove 211 is perpendicular to the axis of the valve seat 210, the embedded groove 211 is provided with a sealing ring 4, which is used to tightly fit with the edge of the valve disc 3, and the clamping shaft 130 passes through the sealing ring 4, so as to ensure the blocking effect of the two ends when the throttle valve is completely closed.

[0034] Working principle: when the external driving mechanism does not apply external force to the valve handle 120 through the connection shaft hole 121, the pressure difference between the expanded inner cavity caused by the piston movement and the atmosphere will force the gas to enter the valve seat 210 from the air inlet connecting end 230 after the exhaust of the engine cylinder, the gas flow generated by the gas flow acts on the valve disc 3, the upper part of the valve disc 3 is subjected to a large gas flow force and the lower part is subjected to a small gas flow force, the valve disc 3 is turned over due to the unbalanced force, and the valve disc 3 is blocked by the baffle in the valve seat 210 when it is rotated to be perpendicular to the axis of the shell 2, the unbalanced pressure difference of the valve disc 3 acts on the baffle, and the baffle keeps the valve disc 3 in a completely sealed state in the shell 2, thereby realizing the self-locking function and making the engine quickly stop rotating.

[0035] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A self-locking sealed automotive throttle body, characterized by: The utility model provides a valve, including shell (2) and actuating mechanism (1), the main part of shell (2) is the valve seat (210) of through -and -through both ends, both ends of valve seat (210) all have the connecting end, the inner wall of valve seat (210) has a pair of mutually parallel inner plane (215), the part of valve seat (210) inner wall between two inner plane (215) is inner camber (216), the inner camber (216) of valve seat (210) has the baffle, valve seat (210) is seted up in two inner plane (215) and is seted up coaxial through -and -through axle hole (212), the axis of through -and -through axle hole (212) is different -surface perpendicular with the axis of valve seat (210), actuating mechanism (1) includes valve handle (120), one end of valve handle (120) is fixedly connected with the clamping shaft (130), the end of clamping shaft (130) is connected with valve clack (3) through the through -and -through axle hole (212), when valve clack (3) is contacted with the end face of baffle, flat plate -shaped valve clack (3) is perpendicular with the axis of valve seat (210).

2. The self-sealing automotive air valve body of claim 1, wherein: The outer side of valve clack (3) has a pair of parallel smooth surface (301), is suitable for with inner plane (215) contact constitutes sliding pair, the smooth surface (301) of valve clack (3) is seted up pin hole (302), the end of clamping shaft (130) is seted up clamping groove (131), is suitable for with the smooth surface (301) of valve clack (3) side clamping, the inner wall of clamping groove (131) still has the latch (132), is suitable for with pin hole (302) insertion.

3. The self-sealing automotive air valve body of claim 2, wherein: The valve handle (120) of actuating mechanism (1) has two, and the two valve handles (120) are commonly connected with the bridging rod (101) away from the end of clamping shaft (130), and the valve handle (120) is also seted up with the connection axle hole (121).

4. The self-sealing automotive air valve body of claim 3 wherein: The outer side of valve seat (210) still has the mounting plate (220), and the mounting plate (220) is seted up with the connecting hole (221).

5. The self-sealing automotive air valve body of claim 4 wherein: The connecting end of both ends of valve seat (210) is gas inlet connecting end (230) and exhaust connecting end (240) respectively, and the outer side of gas inlet connecting end (230) is provided with a first snap ring (231), and the outer side of exhaust connecting end (240) is provided with a second snap ring (241).

6. The self-sealing automotive air valve body of any one of claims 1 to 5, wherein: The baffle is divided into first baffle (213) and second baffle (214), the projection of first baffle (213) and second baffle (214) on the plane perpendicular to inner plane (215) does not coincide, and the axis of through -and -through axle hole (212) is located between first baffle (213) and second baffle (214).

7. The self-sealing automotive air valve body of claim 6 wherein: The end face of first baffle (213) and second baffle (214) is perpendicular to the axis of valve seat (210), and the valve clack (3) is suitable for being contacted with the end face of first baffle (213) and second baffle (214) simultaneously.

8. The self-sealing automotive air valve body of claim 7, wherein: The inner wall of the valve seat (210) is provided with an inner embedded groove (211) between the end faces of the first baffle (213) and the second baffle (214), and a sealing ring (4) is arranged in the inner embedded groove (211) and is adapted to tightly fit the edge of the valve clack (3).

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