CN215057797U - Mechanism for realizing linkage of carburetor choke valve and throttle valve by utilizing heat of engine - Google Patents
Mechanism for realizing linkage of carburetor choke valve and throttle valve by utilizing heat of engine Download PDFInfo
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- CN215057797U CN215057797U CN202121298698.1U CN202121298698U CN215057797U CN 215057797 U CN215057797 U CN 215057797U CN 202121298698 U CN202121298698 U CN 202121298698U CN 215057797 U CN215057797 U CN 215057797U
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Abstract
The utility model relates to a mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by utilizing heat of an engine.A choke shaft handle is vertical to a choke shaft and is rotatably connected with one end of the choke shaft extending out of a carburetor shell; the throttle rocker arm is vertical to the throttle shaft and is rotatably connected to one end of the throttle shaft extending out of the carburetor shell; the pin shaft is rotationally connected to the carburetor shell and is positioned below the rocker arm of the throttle shaft; the linkage shifting piece is vertical to the pin shaft, and the middle part of the linkage shifting piece is rotatably connected to the pin shaft; the pin column is vertical to the linkage shifting piece and is fixed at one end of the linkage shifting piece, and the pin column shifts the handle of the choke shaft to rotate. The utility model discloses a heat conversion drive division drives the linkage plectrum, and the linkage plectrum stirs choke valve shaft handle through driving the round pin axle and rotates, and then realizes the linkage of choke valve and air throttle, and wherein the linkage plectrum need not accurate location, only leans on the round pin post to stir the choke valve shaft handle and rotates, can realize linkage operation, simple to operate, flexible operation, low in cost.
Description
Technical Field
The utility model relates to a carburetor annex device field, in particular to utilize engine heat to realize mechanism of carburetor choke valve and air throttle linkage.
Background
The carburetor is used for mixing a certain amount of fuel and air to ensure that the engine normally runs, so that the engine is prevented from stopping running or being damaged under the condition that the engine is in a lean state under the condition that the fuel and the air are not sufficiently mixed, and meanwhile, the carburetor also monitors the excessive fuel and air mixing to prevent the engine from running in a rich state and stopping running, so that the proportion between the mixed fuel and the air is ensured; during the starting process of the engine, the throttle valve of the carburetor is opened to deliver the mixed air in the mixing chamber of the carburetor to the engine, however, during the process, the choke valve of the carburetor needs to be closed to enrich the mixed air and improve the starting performance, and the existing choke valve needs to be separately closed or opened, which brings inconvenience to users, for example: when the choke flap is fully closed, the choke flap cannot be automatically opened under the condition of not manually opening, the air inlet amount is small, the fuel concentration in the mixing chamber is high at the moment, and the engine is difficult to start due to the fact that the fuel concentration in the mixing chamber is not diluted by more air, so that the engine is easy to be blocked, exploded and the like when the engine is started, and the performance of the engine is influenced.
For this reason, a linkage mechanism of a carburetor choke valve and a throttle valve has begun to appear on the market, for example: chinese patent No. 2082657.X, entitled as a mechanism for achieving linkage of a carburetor choke valve and a throttle valve by using engine heat, discloses a mechanism for achieving linkage of a carburetor choke valve and a throttle valve by using engine heat, comprising: the first rocker arm and the second rocker arm are arranged at the shaft end of the carburetor shell with the choke shaft extending outwards; the third rocker arm is arranged at the shaft end of the carburetor shell, which extends outwards from the throttle shaft; one end of the push-pull plate is hinged on the carburetor shell, and the other end of the push-pull plate is in poking connection with the first rocker arm; the heat energy conversion part is arranged on the carburetor shell, and the driving end of the heat energy conversion part is fixedly connected with the push-pull plate close to the hinged position of the push-pull plate; the middle part of the toggle connecting rod is rotatably connected to the carburetor shell and located between the second rocker arm and the third rocker arm, the two ends of the toggle connecting rod are in one-to-one correspondence with the second rocker arm and the third rocker arm respectively and are in toggle connection, and the structure can realize linkage of opening and closing of the choke valve and the throttle valve so as to ensure the more intelligent cold and heat engine starting requirements of the carburetor under different environments.
However, although the linkage of carburetor choke valve and throttle valve has been realized to above structure, stir the connecting rod and need stir first rocking arm and second rocking arm simultaneously to stir the connecting rod and not only need accurate installation location, still need indiscriminate appearance profile, this installation difficulty and the cost that just causes to stir the connecting rod are expensive, and the very big area in later stage is used and is promoted.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a carburetor choke valve and throttle valve linkage mechanism that is easy and inexpensive to install.
SUMMERY OF THE UTILITY MODEL
The utility model provides an utilize engine heat to realize mechanism of carburetor choke valve and air throttle linkage solves the technical problem that current link gear installation difficulty and manufacturing cost are high.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by utilizing the heat of an engine, wherein the carburetor is fixed on the engine, the choke valve is rotationally connected on a choke valve shaft, the throttle valve is rotationally connected on a throttle valve shaft, the choke valve shaft and the throttle valve shaft are rotationally connected on a carburetor shell, one end of each choke valve shaft and one end of each throttle valve shaft extend out of the carburetor shell, the mechanism comprises a choke valve shaft shifting handle, a throttle valve shaft rocker arm, a pin shaft, a linkage shifting sheet, a pin column and a heat conversion driving part,
the choke shaft pull handle is vertical to the choke shaft and is rotatably connected to one end of the choke shaft extending out of the carburetor shell; the rocker arm of the throttle shaft is vertical to the throttle shaft and is rotatably connected with one end of the throttle shaft extending out of the carburetor shell; the pin shaft is rotationally connected to the carburetor shell and is positioned below the rocker arm of the throttle shaft; the linkage shifting piece is vertical to the pin shaft, and the middle part of the linkage shifting piece is rotatably connected to the pin shaft; the pin column is vertical to the linkage shifting piece and is fixed at one end of the linkage shifting piece, and the pin column is positioned at one side of the choke shaft shifting handle, which is far away from the throttle shaft rocker arm and can shift the choke shaft shifting handle to rotate; the heat energy conversion driving part takes the heat of the engine cylinder as energy and the converted mechanical energy output end is fixedly connected with the other end of the linkage shifting piece.
The utility model has the advantages that: with among the prior art carburetor adopt stir the connecting rod realize the mechanism that carburetor choke valve and air throttle linked different, the utility model relates to a novelty, simple structure, low in cost, its linkage process is:
the engine is started, the rocker arm of the throttle shaft is manually shifted, the throttle is opened, the temperature of the engine cylinder body gradually rises, the heat energy conversion driving part takes the heat of the engine cylinder body as a power source, the mechanical energy output end of the conversion is fixedly connected with the other end of the linkage shifting piece, the heat energy conversion driving part can drive the output end of the linkage shifting piece to move by utilizing the heat of the engine, the linkage shifting piece is further pushed to rotate, the linkage shifting piece shifts the shifting handle of the throttle shaft to rotate by driving the pin post, the choke valve is enabled to be opened, the linkage of the choke valve and the throttle valve is completed, the linkage shifting piece does not need to be accurately positioned, and the installation is convenient.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the heat energy conversion driving part can comprise a transmission part and a heat energy conversion part, the output end of the heat energy conversion part is in transmission connection with the input end of the transmission part, and the output end of the transmission part is fixedly connected with the other end of the linkage shifting piece.
Furthermore, the transmission part can comprise a first pipe body, a sliding block, a first push rod and a push rod spring, the first pipe body is fixed on the carburetor shell, one end of the first pipe body, which is close to the carburetor shell, is provided with an annular limiting part, and one end, which is far away from the carburetor shell, is provided with an opening; the sliding block is connected inside the first pipe body in a sliding mode and can penetrate through an opening formed in one end of the carburetor shell, and a blind hole is formed in one side, close to the carburetor, of the sliding block; one end of the first push rod penetrates through the blind hole of the sliding block and is fixedly connected with the sliding block, and the other end of the first push rod extends out of the first pipe body and is fixedly connected with the other end of the linkage shifting piece; the push rod spring is arranged around the outer side of the first push rod, one end of the push rod spring is abutted with the hole bottom of the blind hole of the sliding block, and the other end of the push rod spring is abutted with the annular limiting part; the output end of the heat energy conversion part is connected with the outer side end of the sliding block in a sliding manner.
Further, the heat energy conversion part comprises a second pipe body capable of transferring heat, a second push rod, a rubber pipe and paraffin, the second pipe body is fixed on the shell of the engine and is in heat transfer connection with the shell of the engine, one end, close to the carburetor shell, of the second pipe body is an outlet, and one end, far away from the carburetor shell, of the second pipe body is closed; the rubber tube is positioned in the second tube body, one end of the rubber tube is provided with an opening, the other end of the rubber tube is closed, the opening end of the rubber tube is close to the outlet end of the second tube body, and the edge of the rubber tube is connected to the inner wall of the second tube body; paraffin is filled between the rubber tube and the inner wall of the second tube body; one end of the second push rod is abutted against the closed end of the rubber tube in the second tube body, and the other end of the second push rod penetrates through an outlet of the second tube body, close to one side of the carburetor shell, and extends out of the second tube body to be in transmission connection with one end of the sliding block.
Heat conversion drive portion theory of operation:
after the engine is started, the temperature of the cylinder body rises, paraffin expands when heated, the paraffin is changed into liquid from solid, the second push rod is pushed, the second push rod moves towards one side of the carburetor shell, the sliding block is further pushed and is connected with the first pipe body in a sliding mode, the sliding block drives the first push rod to move towards one side of the carburetor shell, and the first push rod pushes the other end of the linkage shifting piece, so that the linkage shifting piece is driven to rotate.
The beneficial effect of adopting the further scheme is that: manual secondary operation is reduced, the choke valve is automatically opened to a certain opening degree after the engine is started, more air is sucked into the mixing chamber to be mixed with fuel, the fuel is diluted, so that the phenomena of difficult starting, stuffy start, blasting and the like cannot occur due to overhigh fuel concentration when the engine is started, and the starting stability of the engine is improved.
Furthermore, the choke shaft shifting handle comprises a shifting handle section and a fixed section which are integrally connected, a first cambered surface section and a second cambered surface section are arranged on one side, away from the rocker arm of the choke shaft, of the shifting handle section, and the pin columns sequentially slide on the first cambered surface section and the second cambered surface section and can shift the shifting handle to rotate; the fixed section is vertical to the choke shaft and is fixedly connected with one end of the choke shaft extending out of the carburetor shell;
the throttle shaft rocker arm comprises an installation block and a sector block, the installation block is fixedly connected with the sector block, and the installation block is vertical to the throttle shaft and is fixedly connected with one end of the throttle shaft extending out of the carburetor shell; the fan-shaped block and the axis of the throttle shaft are eccentrically arranged, and one side of the fan-shaped block, which is close to the fixed section, is provided with a plane section which can stir the fixed section to rotate.
The beneficial effect of adopting the further scheme is that: stir the installation piece and rotate, the throttle shaft rotates, and then drives the throttle and open, and the fan-shaped piece also rotates certain angle and the plane section butt of canned paragraph simultaneously, can drive canned paragraph and dial the certain angle of handle section rotation, and then drives the choke shaft and rotate certain angle, and the choke opens certain aperture.
Further, the carburetor comprises a torsion spring, wherein the torsion spring is arranged around the outer side of the choke valve shaft extending out of the carburetor shell, one end of the torsion spring is fixedly connected with the carburetor shell, and the other end of the torsion spring is fixedly connected with the shifting handle section.
The beneficial effect of adopting the further scheme is that: the torsion spring can reset the choke shaft to return to the original state, namely before the engine is not started, the elasticity of the torsion spring keeps the choke closed.
Drawings
FIG. 1 is a top view of the mechanism for linking the choke valve and the throttle valve of the carburetor by using the heat of the engine according to the present invention;
FIG. 2 is a sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a perspective view of a part of the mechanism for linking the choke valve and the throttle valve of the carburetor by using the heat of the engine according to the present invention;
FIG. 4 is a sectional view taken along the line of FIG. 1B-B;
fig. 5 is a schematic structural view of a heat conversion driving part in a mechanism for realizing linkage of a carburetor choke valve and a throttle valve by using engine heat according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. choke shaft, 2, throttle shaft, 3, choke shaft handle, 31, handle, 311, first cambered surface section, 312, second cambered surface section, 32, fixed section, 4, throttle shaft rocker arm, 41, installation piece, 42, sector block, 421, plane section, 5, round pin axle, 6, linkage plectrum, 7, round pin post, 8, heat conversion drive division, 81, transmission portion, 811, first body, 812, sliding block, 813, first push rod, 814, push rod spring, 82, heat energy conversion portion, 821, second body, 822, second push rod, 823, rubber tube, 824, paraffin, 9, torsional spring.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in figure 1, the mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by using the heat of an engine is characterized in that the carburetor is fixed on the engine, the choke valve is rotationally connected on a choke valve shaft 1, the throttle valve is rotationally connected on a throttle valve shaft 2, the choke valve shaft 1 and the throttle valve shaft 2 are both rotationally connected on a carburetor shell, one end of each of the choke valve shaft 1 and the throttle valve shaft 2 extends out of the carburetor shell, the mechanism comprises a choke valve shaft shifting handle 3, a throttle valve shaft rocker arm 4, a pin shaft 5, a linkage shifting sheet 6, a pin column 7 and a heat conversion driving part 8,
the choke shaft pull handle 3 is vertical to the choke shaft 1 and is rotatably connected to one end of the choke shaft 1 extending out of the carburetor shell; the throttle shaft rocker arm 4 is vertical to the throttle shaft 2 and is rotatably connected with one end of the throttle shaft 2 extending out of the carburetor shell; the pin shaft 5 is rotationally connected to the carburetor shell and is positioned below the throttle shaft rocker arm 4; the linkage shifting piece 6 is vertical to the pin shaft 5, and the middle part of the linkage shifting piece is rotatably connected to the pin shaft 5; the pin column 7 is vertical to the linkage shifting piece 6 and is fixed at one end of the linkage shifting piece 6, and the pin column 7 is positioned at one side of the choke shaft shifting handle 3, which is far away from the throttle shaft rocker arm 4 and can shift the choke shaft shifting handle 3 to rotate; the heat energy conversion driving part 8 takes the heat of the engine cylinder as energy and the output end of the converted mechanical energy is fixedly connected with the other end of the linkage shifting piece 6.
The utility model discloses a theory of operation:
when the engine does not work, the choke valve is in a closed state under the action of the elastic force of the torsion spring 9, the plane section 421 of the fan-shaped block 42 is not in contact with the fixed section 32, meanwhile, because the engine does not work, no heat is generated by the engine, no heat transfer is generated between the paraffin 824 and the engine cylinder head, the paraffin 824 is in a non-expansion state, and the linkage mechanism does not act.
the mounting block 41 is provided with a speed regulation pull rod and a speed regulation tension spring (existing structure), the engine is started, the speed regulation pull rod and the speed regulation tension spring pull the mounting block 41 and the sector block 42 to rotate, the mounting block 41 rotates the throttle valve shaft to promote the throttle valve to be in 60% -65% opening degree, the plane section 421 of the sector block 42 stirs the fixed section 32 to rotate, the fixed section 42 rotates the choke valve shaft to promote the choke valve to be in 20% -30% opening degree,
at this time, the engine is in a working state, the temperature of the cylinder head of the spark plug of the engine is high, heat is conducted to the paraffin 824 in the second pipe 821, the paraffin 824 expands when heated (after the paraffin reaches the melting point temperature, the paraffin is melted from a solid state into a liquid state, and the volume expands therewith) to push the rubber pipe 823, and push the second push rod 822 to move towards one side of the carburetor housing, the second push rod 822 pushes the sliding block 812,
because the sliding block 812 is connected with the first pipe 811 in a sliding manner, the sliding block 812 pushes the first push rod 813 to move towards one side of the carburetor, the first push rod 813 pushes the other end of the linkage shifting piece 6 to further drive the linkage shifting piece 6 and the pin 7, the pin 7 pulls the shifting handle 31 to rotate, so that the choke valve is always in a fully open state, it needs to be explained that the paraffin 824 expands when heated, and the choke valve is completely opened within 30 seconds.
the engine is closed, the throttle valve on the throttle valve shaft 2 is pushed to be in a full-open state under the action of the push-pull of the speed-adjusting pull rod and the speed-adjusting tension spring, at the moment, the plane section of the fan-shaped block 42 is separated from the fixed section 32, but because the temperature of the cylinder head just after the engine is stopped is hotter, the paraffin 824 is still in an expansion state under the action of the residual temperature of the engine, the choke valve on the choke valve shaft 1 is always in a full-open position, then the cylinder head of the engine is slowly cooled to the room temperature, the heated temperature of the paraffin 824 is reduced, when the temperature is reduced to a freezing point, the paraffin 824 is changed from a liquid state to a fixed state, the volume is contracted, the thrust of the second push rod 822 disappears, the push sliding block 812 of the push rod spring 814 moves to one side far away from the carburetor housing, the sliding block 812 pulls the first push rod 813 to move once far away from the carburetor housing, the other end of the linkage shifting piece 6 is pulled by the first push rod 813, and further drives the linkage shifting piece 6 and the pin column 7, the pin 7 slowly separates from the second arc surface section 312 of the choke shaft lever 3, and the choke shaft 1 is in the original full-closed state under the elastic force of the torsion spring 9.
In some embodiments, the thermal energy conversion driving portion 8 includes a transmission portion 81 and a thermal energy conversion portion 82, an output end of the thermal energy conversion portion 82 is in transmission connection with an input end of the transmission portion 81, and an output end of the transmission portion 81 is fixedly connected with the other end of the linkage pulling piece 6.
In some embodiments, the thermal energy conversion driving portion 8 includes a transmission portion 81 and a thermal energy conversion portion 82, an output end of the thermal energy conversion portion 82 is in transmission connection with an input end of the transmission portion 81, and an output end of the transmission portion 81 is fixedly connected with the other end of the linkage pulling piece 6.
In some embodiments, the transmission portion 81 includes a first tube 811, a sliding block 812, a first push rod 813, and a push rod spring 814, the first tube 811 is fixed on the carburetor housing, the first tube 811 has an annular limiting portion 8111 at an end close to the carburetor housing, and has an opening at an end far from the carburetor housing; the sliding block 812 is connected inside the first pipe 811 in a sliding manner and can penetrate through an opening formed in one end of the carburetor housing, and a blind hole is formed in one side, close to the carburetor, of the sliding block 812; one end of the first push rod 813 penetrates through the blind hole of the sliding block 812 and is fixedly connected with the sliding block 812, and the other end of the first push rod extends out of the first tube 811 and is fixedly connected with the other end of the linkage shifting piece 6; the push rod spring 814 is arranged around the outer side of the first push rod 813, one end of the push rod spring abuts against the bottom of the blind hole of the sliding block 812, and the other end of the push rod spring abuts against the annular limiting part 8111; the output end of the thermal energy conversion part 82 is slidably connected to the outer end of the slider 812.
In some embodiments, the thermal energy conversion portion 82 includes a second heat-conductive pipe 821, a second push rod 822, a rubber tube 823 and paraffin 824, the second pipe 821 is fixed on and connected to the casing of the engine in a heat-conductive manner, one end of the second pipe 821 close to the carburetor casing is an outlet, and one end of the second pipe 821 far from the carburetor casing is closed; the rubber tube 823 is located in the second tube 821, and has an opening at one end and a closed end, and the opening end of the rubber tube is close to the outlet end of the second tube 821 and the edge of the rubber tube is connected to the inner wall of the second tube 821; paraffin 824 is filled between the rubber tube 823 and the inner wall of the second tube 821; one end of the second push rod 822 is abutted against the closed end of the rubber tube 823 inside the second tube 821, the other end of the second push rod passes through the outlet of the second tube 821 close to one side of the carburetor housing and extends out of the second tube 821 to be in transmission connection with one end of the sliding block 812, manual secondary operation can be reduced, the choke valve is automatically opened by a certain opening degree after the engine is started, more air is sucked into the mixing chamber to be mixed with fuel, the fuel is diluted so that the phenomena of starting difficulty, starting smoldering, blasting and the like cannot occur due to overhigh fuel concentration when the engine is started, and the stability of starting of the engine is improved.
In some specific embodiments, the choke shaft toggle 3 comprises a toggle section 31 and a fixed section 32 which are integrally connected, a first arc section 311 and a second arc section 312 are arranged on one side of the toggle section 31 away from the throttle shaft rocker arm 4, and the pin 7 slides on the first arc section 311 and the second arc section 312 in sequence and can toggle the toggle section 31 to rotate; the fixed section 32 is vertical to the choke shaft 1 and is fixedly connected with one end of the choke shaft 1 extending out of the carburetor shell;
the throttle shaft rocker arm 4 comprises a mounting block 41 and a sector block 42, the mounting block 41 is fixedly connected with the sector block 42, and the mounting block 41 is vertical to the throttle shaft 2 and is fixedly connected with one end of the throttle shaft 2 extending out of the carburetor housing; the sector block 42 is eccentrically arranged with the axis of the throttle shaft 2, and a plane section 421 capable of shifting the fixed section 32 to rotate is arranged on one side of the sector block 42 close to the fixed section 32.
In some embodiments, the torsion spring 9 is included, the torsion spring 9 is enclosed outside the choke shaft 1 extending out of the carburetor housing, one end of the torsion spring 9 is fixedly connected with the carburetor housing, and the other end of the torsion spring 9 is fixedly connected with the lever section 31, the torsion spring 9 can reset the choke shaft 1 to the original state, that is, before the engine is not started, the elasticity of the torsion spring 9 keeps the choke shaft closed.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by utilizing heat of an engine, wherein the carburetor is fixed on the engine, the choke valve is rotationally connected to a choke valve shaft (1), the throttle valve is rotationally connected to a throttle valve shaft (2), the choke valve shaft (1) and the throttle valve shaft (2) are both rotationally connected to a carburetor shell, and one end of each choke valve shaft and one end of each throttle valve shaft extend out of the carburetor shell, the mechanism is characterized by comprising a choke valve shaft shifting handle (3), a throttle valve shaft rocker arm (4), a pin shaft (5), a linkage shifting sheet (6), a pin column (7) and a heat conversion driving part (8),
the choke shaft shifting handle (3) is vertical to the choke shaft (1) and is rotatably connected to one end of the choke shaft (1) extending out of the carburetor shell; the throttle shaft rocker arm (4) is vertical to the throttle shaft (2) and is rotatably connected to one end of the throttle shaft (2) extending out of the carburetor shell; the pin shaft (5) is rotatably connected to the carburetor shell and is positioned below the throttle shaft rocker arm (4); the linkage shifting piece (6) is vertical to the pin shaft (5) and the middle part of the linkage shifting piece is rotatably connected to the pin shaft (5); the pin column (7) is vertical to the linkage shifting piece (6) and is fixed at one end of the linkage shifting piece (6), and the pin column (7) is positioned at one side, away from the throttle shaft rocker arm (4), of the choke shaft shifting handle (3) and can shift the choke shaft shifting handle (3) to rotate; the heat conversion driving part (8) takes the heat of the engine cylinder body as energy and the converted mechanical energy output end is fixedly connected with the other end of the linkage shifting piece (6).
2. The mechanism for realizing linkage of the choke valve and the throttle valve of the carburetor by using the heat of the engine as claimed in claim 1, wherein the heat conversion driving part (8) comprises a transmission part (81) and a heat conversion part (82), the output end of the heat conversion part (82) is in transmission connection with the input end of the transmission part (81), and the output end of the transmission part (81) is fixedly connected with the other end of the linkage plectrum (6).
3. The mechanism for realizing linkage of the choke valve and the throttle valve of the carburetor by utilizing the heat of the engine is characterized in that the transmission part (81) comprises a first pipe body (811), a sliding block (812), a first push rod (813) and a push rod spring (814), wherein the first pipe body (811) is fixed on the carburetor housing, one end, close to the carburetor housing, of the first pipe body (811) is provided with an annular limiting part (8111), and one end, far away from the carburetor housing, of the first pipe body is provided with an opening; the sliding block (812) is connected inside the first pipe body (811) in a sliding manner and can penetrate through an opening formed in one end of the carburetor housing, and a blind hole is formed in one side, close to the carburetor, of the sliding block (812); one end of the first push rod (813) penetrates through the blind hole of the sliding block (812) and is fixedly connected with the sliding block (812), and the other end of the first push rod extends out of the first pipe body (811) and is fixedly connected with the other end of the linkage shifting piece (6); the push rod spring (814) is arranged around the outer side of the first push rod (813), one end of the push rod spring is abutted against the bottom of the blind hole of the sliding block (812), and the other end of the push rod spring is abutted against the annular limiting part (8111); the output end of the heat energy conversion part (82) is connected with the outer side end of the sliding block (812) in a sliding mode.
4. A mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by using heat of an engine as claimed in claim 3, wherein said heat energy conversion part (82) comprises a second heat-conducting pipe body (821), a second push rod (822), a rubber pipe (823) and paraffin (824), said second pipe body (821) is fixed on the casing of said engine and connected with the casing of said engine in a heat-conducting manner, one end of said second pipe body (821) close to said carburetor casing is an outlet, and one end of said second pipe body far from said carburetor casing is closed; the rubber tube (823) is located in the second tube body (821), one end of the rubber tube is provided with an opening, the other end of the rubber tube is closed, the opening end of the rubber tube is close to the outlet end of the second tube body (821), and the edge of the rubber tube is connected to the inner wall of the second tube body (821); the paraffin (824) is filled between the rubber tube (823) and the inner wall of the second tube body (821); one end of the second push rod (822) is abutted against the closed end of the rubber tube (823) in the second tube body (821), and the other end of the second push rod penetrates through the outlet of the second tube body (821) close to one side of the carburetor shell and extends out of the second tube body (821) to be in transmission connection with one end of the sliding block (812).
5. A mechanism for realizing linkage of a carburetor choke valve and a throttle valve by utilizing engine heat according to any one of claims 1 to 4, characterized in that the choke shaft lever (3) comprises a lever section (31) and a fixed section (32) which are integrally connected, a first arc section (311) and a second arc section (312) are arranged on one side of the lever section (31) far away from the throttle shaft rocker arm (4), the pin column (7) slides on the first arc section (311) and the second arc section (312) in sequence and can shift the lever section (31) to rotate; the fixed section (32) is vertical to the choke shaft (1) and is fixedly connected with one end of the choke shaft (1) extending out of the carburetor shell;
the throttle shaft rocker arm (4) comprises a mounting block (41) and a sector block (42), the mounting block (41) is fixedly connected with the sector block (42), and the mounting block (41) is vertical to the throttle shaft (2) and is fixedly connected with one end of the throttle shaft (2) extending out of the carburetor housing; the fan-shaped block (42) with the axle center of throttle shaft (2) is eccentric settings, just fan-shaped block (42) are close to fixed section (32) one side is equipped with and can stir fixed section (32) pivoted plane section (421).
6. A mechanism for realizing linkage of a choke valve and a throttle valve of a carburetor by using heat of an engine according to claim 5, characterized by comprising a torsion spring (9), wherein the torsion spring (9) is enclosed outside the choke shaft (1) extending out of the carburetor housing, and one end of the torsion spring (9) is fixedly connected with the carburetor housing, and the other end is fixedly connected with the handle section (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298698.1U CN215057797U (en) | 2021-06-10 | 2021-06-10 | Mechanism for realizing linkage of carburetor choke valve and throttle valve by utilizing heat of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121298698.1U CN215057797U (en) | 2021-06-10 | 2021-06-10 | Mechanism for realizing linkage of carburetor choke valve and throttle valve by utilizing heat of engine |
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| CN215057797U true CN215057797U (en) | 2021-12-07 |
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| CN202121298698.1U Active CN215057797U (en) | 2021-06-10 | 2021-06-10 | Mechanism for realizing linkage of carburetor choke valve and throttle valve by utilizing heat of engine |
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| CN (1) | CN215057797U (en) |
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2021
- 2021-06-10 CN CN202121298698.1U patent/CN215057797U/en active Active
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