CN112211733B - Throttle body for small gasoline engine electronic injection system - Google Patents
Throttle body for small gasoline engine electronic injection system Download PDFInfo
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- CN112211733B CN112211733B CN202011120175.8A CN202011120175A CN112211733B CN 112211733 B CN112211733 B CN 112211733B CN 202011120175 A CN202011120175 A CN 202011120175A CN 112211733 B CN112211733 B CN 112211733B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/107—Manufacturing or mounting details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses an air throttle body for an electronic injection system of a small gasoline engine, which comprises a gear shell, a transmission shaft, the air throttle body, an air throttle sheet, a motor box, a position sensor, a sealing positioning mechanism and a ventilation mechanism.
Description
Technical Field
The invention relates to the field of throttle body correlation, in particular to a throttle body for an electronic injection system of a small gasoline engine.
Background
The throttle body is a valve for controlling the air suction amount of the engine, is a round steel sheet, is provided with a shaft in the middle, is connected with an accelerator pull wire and is controlled by the accelerator pull wire, and is a device on an air inlet system of the engine and generally divided into three parts: the actuator, throttle blade, and throttle position sensor are typically packaged as one piece.
When the throttle body uses in the gasoline engine, because the throttle body is connected fixedly with the bolt usually, and for the fastness, the use quantity of bolt is more usually, bring inconvenience for the dismantlement maintenance in later stage and the dust clearance of inside, and the throttle body is inside comparatively sealed, be not convenient for carry out the circulation of air when using, and inside part is scalded after long-time the use easily and is generated heat, and the closure of air has caused the hindrance to the heat dissipation of part.
Disclosure of Invention
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a throttle body for an electronic fuel injection system of a small gasoline engine.
The invention is realized in such a way that a throttle body for an electronic injection system of a small gasoline engine is constructed, the device comprises a gear shell and a transmission shaft, the gear shell is arranged in the middle of the left end face of the throttle body, the front end of the right end face of the gear shell is connected with a motor box, the transmission shaft vertically penetrates through the middle of the right end face of the throttle body and the rear end of the right end face of the gear shell, a sealing positioning mechanism and a ventilation mechanism are respectively arranged at the inner sides of the gear shell and the motor box, the sealing positioning mechanism comprises a fixed plate, a shell, a barb plate, a round rod, a U-shaped plate, a spring, a rotating frame, a spring rod, a sealing plate, a sealing strip, a rotating rod and a transmission mechanism, the fixed plate is fastened at the front end face of the sealing plate, and the front end of the right end face of the fixed plate is provided with the barb plate, the shell is welded in the middle of the front end face of the gear shell, the barb plate movably extends into the inner side of the U-shaped plate, the middle parts of the upper end and the lower end of the round rod are rotatably connected with the top of the inner side of the U-shaped plate through a rotating shaft, the round rod is matched with the inner side of a groove formed in the right end of the inner side of the barb plate, the U-shaped plate is connected to the front end face of the rotating frame through a spring, the inner side end face of the spring is movably connected with the side surface of the spring rod, the rotating frame is hinged to the left rear end of the inner side of the shell, the spring rod is fastened to the rear end face of the U-shaped plate and vertically penetrates through the front end face of the rotating frame, a sealing strip is pasted at the right end of the outer side of the sealing plate, the sealing strip tightly extends into the left end of the inner side of the gear shell, the rotating rod penetrates through the front end face of the shell, and the rear end of the rotating rod is provided with a transmission mechanism.
Preferably, transmission shaft outside middle part is fastened in the inboard middle part of throttle piece, position sensor is installed to throttle body right-hand member, the inboard bottom end face right-hand member of motor case is provided with the motor, motor left side output shaft passes gear shell right-hand member front end and fastens in the driving gear inner circle after, terminal surface intermeshing before driving gear and the drive gear, transmission gear right-hand member middle part is connected through pivot and the inboard right-hand member rotation of gear shell, and terminal surface intermeshing before drive gear and the drive gear, the drive gear inner circle is fastened in transmission shaft outside left end, and the drive gear right side is provided with the torsional spring, the torsional spring sets up left end in the transmission shaft outside.
Preferably, drive mechanism includes worm, worm wheel, circle piece, driving plate and thru hole, the worm welds in bull stick rear end face, and the outside rear end of worm rotates with casing inside rear end face right-hand member to be connected, worm wheel bottom end face middle part is rotated through rotating and is connected with the inboard bottom of casing, and worm wheel and worm left end face intermeshing, the circle piece sets up in worm wheel top end face left end, and the circle piece activity stretches into in the thru hole inboard of seting up in driving plate bottom end face middle part, the driving plate fastens in the rotating turret right-hand member face rear end.
Preferably, ventilation mechanism includes heating panel, filter screen, baffle, protective housing, electro-magnet, slide, standing groove, backup pad, reset spring and coupling mechanism, the heating panel fastens in the inboard bottom face of motor case, and the heating panel lock fits in the motor bottom face, the filter screen is installed in the inboard right-hand member of motor case, and the filter screen is located the motor right side, the baffle sets up in the inboard right-hand member of motor case, the protective housing lock is fixed in the motor case preceding terminal surface right side lower extreme, and the protective housing inboard installs the electro-magnet, slide slidable mounting is in the backup pad top, and the slide passes through reset spring to be connected in the inboard rear end face of standing groove, the standing groove is seted up in motor case bottom face right-hand member, the backup pad lock fits in the inboard bottom of standing groove, coupling mechanism sets up in the slide top.
Preferably, the baffle includes baffle body, first silica gel piece, second silica gel piece, inclined plane and toper silica gel strip, baffle body top face middle part is connected through pivot and the rotation of the inboard top right-hand member of motor case, and the baffle body front and back terminal surface is pasted respectively and is had second silica gel piece and first silica gel piece, the inclined plane is seted up in first silica gel piece rear end face right-hand member, the toper silica gel strip sets up in second silica gel piece front and back terminal surface right-hand member.
Preferably, the connecting mechanism comprises a shaft rod, a connecting plate, a through opening and a cylinder, the shaft rod is fastened in the middle of the bottom end face of the baffle body, the shaft rod penetrates through the right end of the bottom end face of the inner side of the motor box and then is fastened at the right end of the top end face of the connecting plate, the through opening penetrates through the left ends of the upper end face and the lower end face of the connecting plate, the cylinder is arranged on the top end face of the sliding plate, and the cylinder movably extends into the inner side of the through opening.
Preferably, the side surface of the round rod is provided with a rubber sheet, and the thickness of the rubber sheet is 0.15cm to 0.2cm.
Preferably, the spring and the spring rod are symmetrically provided with two left sides and two right sides of the rear end surface of the U-shaped plate, and the left sides and the right sides of the front end surface of the rotating frame are provided with round holes corresponding to the spring rod.
Preferably, the baffle is provided with more than two right ends of the inner side of the motor box, and the right ends of the inner side of the motor box are completely covered by the baffles.
Preferably, the rear end face of the inclined plane is parallel to the front end face of the conical silica gel strip, and the rear end face of the inclined plane is consistent with the front end face of the conical silica gel strip in size.
The invention has the following advantages: the invention provides a throttle body for an electronic fuel injection system of a small gasoline engine through improvement, which has the following improvement compared with the same type of equipment:
the method has the advantages that: according to the throttle body for the electronic injection system of the small gasoline engine, the sealing and positioning mechanism is arranged on the inner side of the gear shell, the rotating rod is rotated to drive the worm and the worm wheel to rotate, the worm wheel drives the transmission plate and the rotating frame to rotate leftwards through the round block matched with the through hole in the rotating process, the rotating frame drives the U-shaped plate and the round rod to rotate leftwards to be separated from the inner side of the groove at the right end of the inner side of the barb plate, then the sealing plate can be pulled to drive the fixing plate and the sealing strip to move outwards to be separated from the left end of the gear shell, then the parts on the inner side of the gear shell can be maintained or cleaned by dust, the throttle body can be disassembled more quickly to maintain or clean dust in the parts, and the beneficial effect of improving the working efficiency is achieved.
The method has the advantages that: according to the throttle body for the electronic injection system of the small gasoline engine, the ventilation mechanism is arranged at the right end of the inner side of the motor box, the electromagnet is electrified, so that the sliding plate is moved rightwards under the attraction of the electromagnet, the sliding plate drives the cylinder to move rightwards, and the cylinder moves rightwards and is matched with the through hole to drive the connecting plate, the shaft lever and the baffle body to rotate, so that a gap is formed between the two baffle bodies after the baffle bodies rotate, at the moment, external air can be guided into the motor box and the gear shell to ventilate and radiate a part, the throttle body is quickly ventilated and radiated, and the service life of the part is prolonged.
The method has the advantages that: according to the throttle body for the electronic injection system of the small gasoline engine, the rubber sheet is arranged on the side surface of the round rod, and the thickness of the rubber sheet is 0.15 cm-0.2 cm, so that the round rod is attached to the right end of the inner side of the barb plate more stably.
Advantage 4: the throttle body for the electronic injection system of the small gasoline engine is characterized in that the throttle body is symmetrically provided with two sides on the left side and the right side of the rear end surface of the U-shaped plate through the spring and the spring rod, and the left side and the right side of the front end surface of the rotating frame are provided with round holes corresponding to the spring rod, so that the U-shaped plate can be conveniently and rapidly and stably reset.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the motor connection structure of the present invention;
FIG. 3 is a schematic top cross-sectional view of the seal positioning mechanism of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic top cross-sectional view of the venting mechanism of the present invention;
FIG. 6 is a schematic view of the right side cross-sectional configuration of the venting mechanism of the present invention;
FIG. 7 is a schematic view of the baffle structure of the present invention;
fig. 8 is a schematic view of the structure of the connection mechanism of the present invention.
Wherein: the damper comprises a gear shell-1, a transmission shaft-2, a throttle body-3, a throttle sheet-4, a motor box-5, a motor-8, a driving gear-9, a transmission gear-10, a driving gear-11, a torsion spring-12, a position sensor-13, a sealing positioning mechanism-6, a ventilation mechanism-7, a fixing plate-61, a shell-62, a barb plate-63, a round rod-64, a U-shaped plate-65, a spring-66, a rotating frame-67, a spring rod-68, a sealing plate-69, a sealing strip-610, a rotating rod-611, a transmission mechanism-612, a worm-6121, a worm wheel-6122, a round block-6123, a transmission plate-6124, a through hole-6125, a heat dissipation plate-71, a filter screen-72, a baffle-73, a protective shell-74, an electromagnet-75, a sliding plate-76, a placement groove-77, a support plate-78, a return spring-79, a connection mechanism-710, a baffle body-731, a first silica gel sheet-732, a second silica gel sheet-733, an inclined plane-734, a conical silica gel strip-734, a connecting plate-7101, a cylindrical 7104, and a cylindrical 7104.
Detailed Description
The present invention will be described in detail below with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 and 2, the present invention provides an air throttle body for an electronic fuel injection system of a small gasoline engine by improvement, including a gear housing 1 and a transmission shaft 2, the gear housing 1 is installed in the middle of the left end face of the air throttle body 3, and the front end of the right end face of the gear housing 1 is connected with a motor box 5, the transmission shaft 2 vertically penetrates through the middle of the right end face of the air throttle body 3 and the rear end of the right end face of the gear housing 1, the middle of the outer side of the transmission shaft 2 is fastened in the middle of the inner side of an air throttle sheet 4, the right end face of the air throttle body 3 is installed with a position sensor 13, the right end of the inner side of the motor box 5 is provided with a motor 8, the left output shaft of the motor 8 penetrates through the front end of the right end face of the gear housing 1 and is fastened in the inner ring of a driving gear 9, the driving gear 9 is engaged with the front end face of a transmission gear 10, the middle of the right end face of the transmission gear 10 is rotatably connected with the right end face of the gear housing 1 by a rotating shaft, and the front end face of the transmission gear 10 is engaged with the front end face of the driving gear 11, the inner ring of the driving gear 11, the driving gear 11 is fastened in the outer side of the inner ring of the transmission shaft 2, and the driving gear 12 is provided on the right side of the driving gear 11, and the driving gear 12, and the left end of the driving gear 12 is provided on the left end of the transmission shaft 12 is provided in the left end of the transmission shaft 2.
Referring to fig. 3, the present invention provides a throttle body for an electronic fuel injection system of a small gasoline engine by an improvement, a sealing and positioning mechanism 6 and a ventilation mechanism 7 are respectively disposed inside a gear housing 1 and a motor case 5, the sealing and positioning mechanism 6 includes a fixed plate 61, a housing 62, a barb plate 63, a round bar 64, a U-shaped plate 65, a spring 66, a rotating frame 67, a spring bar 68, a sealing plate 69, a sealing strip 610, a rotating bar 611 and a transmission mechanism 612, the fixed plate 61 is fastened on a front end face of the sealing plate 69, a barb plate 63 is disposed at a front end of a right end face of the fixed plate 61, the housing 62 is welded in a middle portion of the front end face of the gear housing 1, the barb plate 63 movably extends into an inside of the U-shaped plate 65, middle portions of upper and lower ends of the round bar 64 are rotatably connected with a top portion of the inside of the U-shaped plate 65 through a rotating shaft, the round bar 64 is fitted inside a groove formed at a right end of the inside of the barb plate 63, a rubber sheet is disposed on a side surface of the round bar 64, the thickness of the rubber sheet is 0.15cm to 0.2cm, the U-shaped plate 65 is connected to the front end face of the rotating frame 67 through the spring 66, so that the round rod 64 is more stably attached to the right end of the inner side of the barb plate 63, the end face of the inner side of the spring 66 is movably connected with the side surface of the spring rod 68, the spring 66 and the spring rod 68 are symmetrically arranged on the left side and the right side of the rear end face of the U-shaped plate 65, round holes corresponding to the spring rods 68 are formed in the left side and the right side of the front end face of the rotating frame 67, so that the U-shaped plate 65 can be quickly and stably reset, the rotating frame 67 is hinged to the left rear end of the inner side of the shell 62, so that the rotating frame 67 can be conveniently separated from the right end of the inner side of the barb plate 63 after driving the U-shaped plate 65 and the round rod 64 to rotate, the spring rods 68 are fastened to the rear end face of the U-shaped plate 65, and the spring rods 68 vertically penetrate through the front end face of the rotating frame 67, so that the U-shaped plate 65 can stably and horizontally move, the sealing strip 610 is adhered to the right end of the outer side of the sealing plate 69, the sealing strip 610 tightly extends into the left end of the inner side of the gear housing 1, the rotating rod 611 penetrates through the front end surface of the housing 62, and the rear end of the rotating rod 611 is provided with a transmission mechanism 612.
Referring to fig. 4, the invention provides a throttle body for an electronic injection system of a small gasoline engine by improvement, a transmission mechanism 612 includes a worm 6121, a worm wheel 6122, a circular block 6123, a transmission plate 6124 and a through hole 6125, the worm 6121 is welded on the rear end face of the rotating rod 611, the rear end of the outer side of the worm 6121 is rotatably connected with the right end of the rear end face of the inner side of the housing 62, the rotating rod 611 drives the worm 6121 to rotate conveniently, the middle part of the bottom end face of the worm wheel 6122 is rotatably connected with the bottom end of the inner side of the housing 62 by rotation, the worm wheel 6122 is meshed with the left end face of the worm 6121 mutually, the worm 6121 drives the worm wheel 6122 to rotate conveniently, the circular block 6123 is arranged at the left end of the top end face of the worm wheel 6122, the circular block 6123 movably extends into the inner side of the through hole 6125 arranged in the middle part of the transmission plate 6124, the circular block 6123 is matched with the transmission plate 6125 to drive the transmission plate 6124 to rotate conveniently, and the rear end of the right end face of the transmission plate 6124 rotating frame 67.
Referring to fig. 5 and 6, the present invention provides a throttle body for an electronic fuel injection system of a small gasoline engine by an improvement, wherein the ventilation mechanism 7 includes a heat sink 71, a filter screen 72, a baffle 73, a protective housing 74, an electromagnet 75, a sliding plate 76, a placement groove 77, a support plate 78, a return spring 79 and a connecting mechanism 710, the heat sink 71 is fastened to the bottom end face of the inside of the motor case 5, the heat sink 71 is locked to the bottom end face of the motor 8, the filter screen 72 is installed at the middle and right ends of the inside of the motor case 5, the filter screen 72 is located at the right side of the motor 8 for filtering impurities in the air, the baffle 73 is installed at the right end of the inside of the motor case 5, the baffle 73 is provided with more than two right ends of the inside of the motor case 5, and the baffles 73 completely cover the right end of the inside of the motor case 5 for sealing the right end of the inside of the motor case 5 to prevent the entrance of excessive dust when ventilation is not needed, the protective housing 74 is locked to the right end face of the front end face of the motor case 5, the inside of the protective housing 74 is provided with the electromagnet 75, the sliding plate 76 is slidably installed at the top of the support plate 78, and the sliding plate 76 is connected to the sliding plate 77 through the return spring 79, the sliding plate 77, which is installed at the bottom end face of the sliding plate 710.
Referring to fig. 7, the throttle body for an electronic injection system of a small gasoline engine is provided by the present invention through an improvement, the baffle 73 includes a baffle body 731, a first silica gel sheet 732, a second silica gel sheet 733, an inclined surface 734 and a conical silica gel strip 735, the middle portion of the top end surface of the baffle body 731 is rotatably connected with the right end of the top inside of the motor box 5 through a rotating shaft, and the second silica gel sheet 733 and the first silica gel sheet 732 are respectively adhered to the front and rear end surfaces of the baffle body 731, so that the sealing performance of the connection between two adjacent baffle bodies 731 is stronger, the inclined surface 734 is disposed at the right end of the rear end surface of the first silica gel sheet 732, the rear end surface of the inclined surface 734 is parallel to the front end surface of the conical silica gel strip 735, the rear end surface of the inclined surface 734 is consistent with the front end surface of the conical silica gel strip 735, which facilitates the stable adhesion connection between the two adjacent baffle bodies 731, and the conical silica gel strip 735 is disposed at the right end of the front end surface of the second silica gel sheet 733.
Referring to fig. 8, the present invention provides a throttle body for an electronic fuel injection system of a small gasoline engine by improvement, wherein a connecting mechanism 710 includes a shaft lever 7101, a connecting plate 7102, a through opening 7103, and a cylinder 7104, the shaft lever 7101 is fastened at the middle of the bottom end face of a baffle body 731, the shaft lever 7101 passes through the right end of the bottom end face inside a motor case 5 and then is fastened at the right end of the top end face of the connecting plate 7102, the through opening 7103 penetrates through the left end of the upper and lower end faces of the connecting plate 7102, the cylinder 7104 is disposed at the top end face of a sliding plate 76, and the cylinder 7104 movably extends into the through opening 7103, so that the cylinder 7104 cooperates with the through opening 7103 to drive the connecting plate 7102 to rotate.
Example two:
the invention provides a throttle body for an electronic injection system of a small gasoline engine through improvement, wherein the front end of the right end face of a gear shell 1 is hollowed, so that an output shaft on the left side of a motor 8 can conveniently enter the gear shell 1 to be connected with a driving gear 9, the size of the outer side of a throttle valve sheet 4 corresponds to the inner side of the throttle body 3, and the throttle body 4 can conveniently and completely seal the inner part of the throttle body 3 after rotating.
The invention provides a throttle body for an electronic injection system of a small gasoline engine through improvement, and the working principle is as follows;
firstly, the device is integrally and fixedly arranged at a specified position on the gasoline engine, two ends of the throttle body 3 are respectively connected to proper positions of specified parts on the gasoline engine, and the motor 8 and the electromagnet 75 are connected to external control equipment;
secondly, when ventilation needs to be carried out through the throttle body 3, the motor 8 can be started, so that the output shaft of the motor 8 drives the driving gear 9 to rotate, the driving gear 9 drives the transmission gear 10 to rotate, the transmission gear 10 drives the driving gear 11 and the transmission shaft 2 to rotate, and the torsion spring 12 is stretched by the tension of the transmission shaft 2, so that the transmission shaft 2 drives the throttle sheet 4 to rotate and open in the rotating process, at the moment, the air cylinder can flow through the throttle body 3, and the rotation angle of the transmission shaft 2 is detected through the position sensor 13, so that the rotation amplitude of the throttle sheet 4 can be observed conveniently;
thirdly, when the components in the gear shell 1 need to be maintained or the dust in the gear shell needs to be cleaned, the worm 6121 and the worm wheel 6122 can be driven to rotate by rotating the rotating rod 611, the worm wheel 6122 drives the transmission plate 6124 and the rotating frame 67 to rotate to the left by matching the round block 6123 with the through hole 6125 in the rotating process, the rotating frame 67 drives the U-shaped plate 65 and the round rod 64 to rotate to the left to be separated from the inner side of the groove at the right end of the inner side of the barb plate 63, then the sealing plate 69 can be pulled to drive the fixing plate 61 and the sealing strip 610 to move outwards to be separated from the left end of the gear shell 1, and then the components at the inner side of the gear shell 1 can be maintained or cleaned by dust;
fourthly, when ventilation and heat dissipation are needed to be conducted on the motor 8 and components in the gear shell 1, the electromagnet 75 can be electrified, so that the sliding plate 76 is moved rightwards under the suction force of the electromagnet 75, the sliding plate 75 drives the cylinder 7104 to move rightwards, the cylinder 7104 moves rightwards in a matching mode with the through hole 7103 to drive the connecting plate 7102, the shaft rod 7101 and the baffle body 731 to rotate, a gap is formed between the two baffle bodies 731 after the baffle body 731 rotates, and at the moment, external air can be guided into the motor box 5 and the gear shell 1 to conduct ventilation and heat dissipation on the components.
The invention provides a throttle body for an electronic injection system of a small gasoline engine through improvement, a worm 6121 and a worm wheel 6122 are driven to rotate by rotating a rotating rod 611, the worm wheel 6122 drives the transmission plate 6124 and the rotating frame 67 to rotate leftwards by matching the round block 6123 with the through hole 6125 in the rotating process, and the rotating frame 67 drives the U-shaped plate 65 and the round rod 64 to rotate leftwards to be separated from the inner side of the groove at the right end of the inner side of the barb plate 63, the sealing plate 69 can be pulled to drive the fixing plate 61 and the sealing strip 610 to move outwards to separate from the left end of the gear shell 1, then the parts at the inner side of the gear shell 1 can be maintained or cleaned by dust, the throttle body 3 can be disassembled more quickly to maintain or clean the parts inside, the beneficial effect of improving the working efficiency is achieved, by energizing the electromagnet 75, the slide plate 76 is moved rightward by the attraction force of the electromagnet 75, and the slide plate 75 drives the cylinder 7104 to move rightwards, and the rightwards movement process of the cylinder 7104 is matched with the through opening 7103 to drive the connecting plate 7102, the shaft lever 7101 and the baffle plate body 731 to rotate, so that a gap is formed between the two baffle bodies 731 after the baffle bodies 731 rotate, and at the moment, outside air can be guided into the motor box 5 and the gear shell 1 to ventilate and radiate the components, so that the beneficial effects of quickly ventilating and radiating the throttle valve body 3 and prolonging the service life of the components are achieved, the rubber sheet is arranged on the side surface of the round rod 64, the thickness of the rubber sheet is 0.15cm to 0.2cm, so that the round rod 64 is attached to the right end of the inner side of the barb plate 63 more stably, two springs 66 and spring rods 68 are symmetrically arranged at the left side and the right side of the rear end surface of the U-shaped plate 65, and round holes corresponding to the spring rods 68 are formed in the left side and the right side of the front end face of the rotating frame 67, so that the U-shaped plate 65 can be rapidly and stably reset conveniently.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The throttle body for an electronic injection system of a small gasoline engine comprises a gear shell (1) and a transmission shaft (2), wherein the gear shell (1) is installed in the middle of the left end face of the throttle body (3), the front end of the right end face of the gear shell (1) is connected with a motor box (5), and the transmission shaft (2) vertically penetrates through the middle of the right end face of the throttle body (3) and the rear end of the right end face of the gear shell (1);
the method is characterized in that: the gear box is characterized by further comprising a sealing positioning mechanism (6) and a ventilation mechanism (7), wherein the sealing positioning mechanism (6) and the ventilation mechanism (7) are respectively arranged on the inner sides of the gear shell (1) and the motor box (5), the sealing positioning mechanism (6) comprises a fixing plate (61), a shell (62), a barb plate (63), a round rod (64), a U-shaped plate (65), a spring (66), a rotating frame (67), a spring rod (68), a sealing plate (69), a sealing strip (610), a rotating rod (611) and a transmission mechanism (612), the fixing plate (61) is fastened on the front end face of the sealing plate (69), the barb plate (63) is arranged at the front end face of the right end face of the fixing plate (61), the shell (62) is welded in the middle of the front end face of the gear shell (1), the barb plate (63) movably extends into the inner side of the U-shaped plate (65), the middle parts of the upper end and the lower end of the round rod (64) are rotatably connected with the top of the inner side of the U-shaped plate (65) through a rotating shaft, the round rod (64) fits with the inner side of the barb plate (63), a groove (65) is formed in the inner side face of the U-shaped plate (66), the rotating frame (67), the spring (67), the inner side face of the spring rod (66) is connected with the left side face of the rotating frame (67), and the inner side face of the rotating frame (67), the spring rod (68) is fastened on the rear end face of the U-shaped plate (65), the spring rod (68) vertically penetrates through the front end face of the rotating frame (67), a sealing strip (610) is adhered to the right end of the outer side of the sealing plate (69), the sealing strip (610) tightly extends into the left end of the inner side of the gear shell (1), the rotating rod (611) penetrates through the front end face of the shell (62), and a transmission mechanism (612) is arranged at the rear end of the rotating rod (611);
the transmission mechanism (612) comprises a worm (6121), a worm wheel (6122), a round block (6123), a transmission plate (6124) and a through hole (6125), the worm (6121) is welded on the rear end face of the rotating rod (611), the rear end of the outer side of the worm (6121) is rotatably connected with the right end of the rear end face of the inner side of the shell (62), the middle of the bottom end face of the worm wheel (6122) is rotatably connected with the bottom end of the inner side of the shell (62) through rotation, the worm wheel (6122) is meshed with the left end face of the worm (6121), the round block (6123) is arranged at the left end of the top end face of the worm wheel (6122), the round block (6123) movably extends into the inner side of the through hole (6125) formed in the middle of the bottom end face of the transmission plate (6124), and the transmission plate (6124) is fastened at the rear end of the right end face of the rotating frame (67);
through setting up sealed positioning mechanism in the gear housing inboard, drive worm and worm wheel rotation through rotating the bull stick, and the worm wheel drives driving plate and rotating turret to the left-hand rotation through the cooperation thru hole of circle piece at the pivoted in-process to the rotating turret drives U template and round bar and breaks away from the recess inboard of the inboard right-hand member of barb board to the left-hand rotation, then pulls the closing plate and drives fixed plate and sealing strip and outwards remove and break away from the gear housing left end.
2. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 1, wherein: the middle part of the outer side of the transmission shaft (2) is fastened to the middle part of the inner side of the throttle valve sheet (4), a position sensor (13) is installed on the right end face of the throttle valve body (3), a motor (8) is arranged at the right end face of the inner side bottom end face of the motor box (5), an output shaft of the left side of the motor (8) penetrates through the front end of the right end face of the gear shell (1) and then is fastened to an inner ring of a driving gear (9), the front end faces of the driving gear (9) and a transmission gear (10) are meshed with each other, the middle part of the right end face of the transmission gear (10) is rotatably connected with the right end of the inner side of the gear shell (1) through a rotating shaft, the front end faces of the transmission gear (10) and a driving gear (11) are meshed with each other, the inner ring of the driving gear (11) is fastened to the left end of the outer side of the transmission shaft (2), a torsion spring (12) is arranged at the middle end of the outer side of the transmission shaft (2).
3. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 1, wherein: ventilation mechanism (7) include heating panel (71), filter screen (72), baffle (73), protective housing (74), electro-magnet (75), slide (76), standing groove (77), backup pad (78), reset spring (79) and coupling mechanism (710), heating panel (71) fasten in motor case (5) inboard bottom end face, and heating panel (71) closure in motor (8) bottom end face, filter screen (72) are installed in motor case (5) inboard right-hand member, and filter screen (72) are located motor (8) right side, baffle (73) set up in motor case (5) inboard right-hand member, protective housing (74) closure is in motor case (5) front end face right-hand member lower extreme, and protective housing (74) inboard installs electro-magnet (75), slide (76) slidable mounting is in backup pad (78) top, and slide (76) connect in standing groove (77) inboard rear end face through reset spring (79), standing groove (77) open locates motor case (5) bottom end face right-hand member, backup pad (78) closure is in standing groove (77) inboard, slide (76) top sets up in standing groove (710).
4. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 3, wherein: baffle (73) include baffle body (731), first silica gel piece (732), second silica gel piece (733), inclined plane (734) and toper silica gel strip (735), baffle body (731) top terminal surface middle part is rotated through pivot and motor case (5) inboard top right-hand member and is connected, and has pasted second silica gel piece (733) and first silica gel piece (732) respectively to baffle body (731) front and back terminal surface, inclined plane (734) are seted up in first silica gel piece (732) rear end face right-hand member, toper silica gel strip (735) set up in second silica gel piece (733) front end face right-hand member.
5. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 3, wherein: coupling mechanism (710) include axostylus axostyle (7101), connecting plate (7102), pass through mouth (7103) and cylinder (7104), axostylus axostyle (7101) fastens in baffle body (731) bottom end face middle part, and fastens in connecting plate (7102) top end face right-hand member behind axostylus axostyle (7101) the inboard bottom end face right-hand member of passing through motor case (5), pass through mouth (7103) and link up in connecting plate (7102) upper and lower terminal surface left end, cylinder (7104) set up in slide (76) top end face, and cylinder (7104) activity stretches into in passing through mouth (7103) inboard.
6. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 1, wherein: the side surface of the round rod (64) is provided with a rubber sheet, and the thickness of the rubber sheet is 0.15 cm-0.2 cm.
7. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 1, wherein: the spring (66) and the spring rod (68) are symmetrically provided with two round holes corresponding to the spring rod (68) on the left and right sides of the rear end surface of the U-shaped plate (65), and the left and right sides of the front end surface of the rotating frame (67) are provided with the round holes.
8. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 3, wherein: the baffle plates (73) are arranged at the right ends of the inner sides of the motor boxes (5), and the baffle plates (73) completely cover the right ends of the inner sides of the motor boxes (5).
9. The throttle body for an electronic fuel injection system of a small gasoline engine as claimed in claim 4, wherein: the rear end face of the inclined plane (734) is parallel to the front end face of the conical silica gel strip (735), and the rear end face of the inclined plane (734) is identical to the front end face of the conical silica gel strip (735 in size.
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| CN202011120175.8A CN112211733B (en) | 2020-10-19 | 2020-10-19 | Throttle body for small gasoline engine electronic injection system |
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| CN202011120175.8A CN112211733B (en) | 2020-10-19 | 2020-10-19 | Throttle body for small gasoline engine electronic injection system |
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| EP1191209A4 (en) * | 1999-05-10 | 2008-02-13 | Hitachi Ltd | Throttle device of internal combustion engine |
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| JP2010106690A (en) * | 2008-10-28 | 2010-05-13 | Denso Corp | Valve unit and method for manufacturing the same |
| JP2013155650A (en) * | 2012-01-30 | 2013-08-15 | Hitachi Automotive Systems Ltd | Motor-driven throttle valve control device |
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