CN104179597A - Carburetor and lower cover thereof - Google Patents
Carburetor and lower cover thereof Download PDFInfo
- Publication number
- CN104179597A CN104179597A CN201310198754.8A CN201310198754A CN104179597A CN 104179597 A CN104179597 A CN 104179597A CN 201310198754 A CN201310198754 A CN 201310198754A CN 104179597 A CN104179597 A CN 104179597A
- Authority
- CN
- China
- Prior art keywords
- lower cover
- oil
- carburetor
- feed
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003129 oil well Substances 0.000 claims abstract description 31
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a carburetor and a lower cover thereof. The carburetor comprises a body of the carburetor, a main oil well and the lower cover, wherein the main oil well is arranged on the body; the lower cover is arranged on the body of the carburetor and is of an inwards concave shell structure provided with an accommodating cavity; the accommodating cavity is a float chamber of the carburetor; the top end of the lower cover is provided with a connecting structure used for being connected with the body; the body is provided with a body connecting part corresponding to the connecting structure; the bottom end of the lower cover is provided with an oil drain plugged by a connecting piece; the connecting piece penetrates through the oil drain and is connected with the main oil well of the carburetor; the connecting piece is provided with an oil inlet channel; the well wall of the main oil well is provided with an oil fetching channel; the oil fetching channel is communicated with an oil way of the main oil well through the oil inlet channel; the lowest end of the oil inlet of the oil fetching channel is flush with the bottom surface of an oil layer of the float chamber. The lower cover cannot be rotated, and oil is directly drained from the bottom, so the oil is drained more conveniently, safely and thoroughly.
Description
Technical field
The present invention relates to a kind of Carburetor, particularly a kind of lower cover there will not be spin phenomenon and safer Carburetor and lower cover thereof.
Background technique
Referring to Figure 1A, 1B, the carburetor structure schematic diagram that Figure 1A is prior art, the A-A partial sectional view that Figure 1B is Figure 1A.The lower cover 20 of existing Carburetor is to be connected with Carburetor body 10 by connecting bolt 30, and drains the oil by oil discharge screw 40.The Carburetor of this structure easily spins when assembling lower cover 20, and it is unclean to drain the oil, and after draining the oil, the residual a large amount of gasoline of meeting in lower cover 20, affects the clean of Carburetor, thereby has influence on the working condition of Carburetor.
Prior art
10 Carburetor bodies
20 lower covers
30 connecting bolts
40 oil discharge screws
The present invention
1 body
11 body joints
12 body attachment holes
2 main oil wells
21 get oily path
3 lower covers
31 linkage structures
32 drain oils
33 lower cover attachment holes
34 cylinder parts
35 circular cone portions
36 first arc surfaces
37 second arc surfaces
38 stiffening ribs
4 float chambers
5 links
51 oil-feed paths
511 oil-feed cross-drilled holes
512 oil-feed straight holes
6 attachment screws
7 Sealings
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of lower cover and there will not be spin phenomenon and safer Carburetor and lower cover thereof.
To achieve these goals, the invention provides a kind of lower cover of Carburetor, be arranged on the body of Carburetor, described lower cover is one to have the indent shell construction of accommodating cavity, the float chamber that described accommodating cavity is described Carburetor, wherein, the top of described lower cover is provided with the linkage structure for being connected with described body, described body is provided with body joint corresponding to described linkage structure, the bottom of described lower cover is provided with by the drain oil of a connection piece shutoff, described link is connected with the main oil well of described Carburetor through described drain oil, on described link, be provided with oil-feed path, on the borehole wall of described main oil well, be provided with and get oily path, describedly get oily path and be communicated with the oil circuit of described main oil well by described oil-feed path, the described least significant end of filler opening and the oil reservoir bottom surface of described float chamber of getting oily path is concordant.
Above-mentioned lower cover, wherein, described linkage structure is one to be arranged on the flange of the outer, top of described lower cover, a plurality of lower cover attachment holes are evenly set on described flange, described body joint is the flange connector arranging corresponding to described flange, on described flange connector, corresponding to described lower cover attachment hole, is provided with body attachment hole.
Above-mentioned lower cover, wherein, described linkage structure is a plurality of boss that are evenly distributed on the outer, top of described lower cover, on described a plurality of boss, be respectively arranged with lower cover attachment hole, described body joint is the connection boss arranging corresponding to described boss, on described connection boss, corresponding to described lower cover attachment hole, is provided with body attachment hole.
Above-mentioned lower cover, wherein, described lower cover comprises cylinder part and circular cone portion, described cylinder part is connected with the second arc surface smooth transition by the first arc surface with described circular cone portion, described linkage structure is arranged on the top of described cylinder part, and described drain oil is arranged on the bottom surface of described circular cone portion.
Above-mentioned lower cover, wherein, is also evenly provided with a plurality of stiffening ribs on the outer surface of described circular cone portion.
Above-mentioned lower cover, wherein, described link is connecting bolt, described connecting bolt is coaxially connected with described main oil well, described oil-feed path comprises oil-feed cross-drilled hole and the oil-feed straight hole interconnecting, described oil-feed straight hole is coaxially arranged in described connecting bolt and is positioned at the threaded end of described connecting bolt and is communicated with the oil circuit of described main oil well, described oil-feed cross-drilled hole be communicated with described oil-feed straight hole and described in get oily path.
Above-mentioned lower cover, wherein, described lower cover is connected with described body by attachment screw, and described lower cover attachment hole and described body attachment hole are the tapped hole with described attachment screw adaptation.
Above-mentioned lower cover, wherein, described lower cover is plastics once-through part, stainless steel part or aluminium alloy material materials and parts.
Above-mentioned lower cover, wherein, is also provided with Sealing between described link and described lower cover.
In order to realize better above-mentioned purpose, the present invention also provides a kind of Carburetor, comprises the body of Carburetor, main oil well and lower cover, and described main oil well is arranged on described body, and wherein, described lower cover is above-mentioned lower cover.
Technique effect of the present invention is:
The present invention is fixed on lower cover on Carburetor body by linkage structure, and lower cover there will not be the phenomenon and safer of spinning; Link not only can connect lower cover and body, but also plays a part oil-feed, drains the oil, and this Carburetor is directly drained the oil convenient, thorough from bottom.This Carburetor has the structure of dryouting in addition, directly that the gasoline afterburnt in lower cover is flame-out without draining the oil, and without unscrewing oil discharge screw by craft again, carries out Oil drain operation.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
Figure 1A is the carburetor structure schematic diagram of prior art;
Figure 1B is the A-A partial sectional view of Figure 1A;
Fig. 2 A is the carburetor structure schematic diagram of one embodiment of the invention;
Fig. 2 B is the B-B partial sectional view of Fig. 2 A;
Fig. 2 C is the worm's eye view of Fig. 2 A;
Fig. 3 A is the lower cover structure schematic diagram of one embodiment of the invention;
Fig. 3 B is the C-C sectional view of Fig. 3 A;
Fig. 4 is the body structure schematic diagram of one embodiment of the invention.
Wherein, reference character
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and working principle are described in detail:
Referring to Fig. 2 A-2C, the carburetor structure schematic diagram that Fig. 2 A is one embodiment of the invention, Fig. 2 B is the B-B partial sectional view of Fig. 2 A, Fig. 2 C is the worm's eye view of Fig. 2 A.Carburetor of the present invention, the body 1, main oil well 2 and the lower cover 3 that comprise Carburetor, described main oil well 2 is arranged on described body 1, because working principle of structure, function, mutual alignment relation and annexation and the Carburetor of these other parts of Carburetor etc. is more ripe prior art, and therefore not to repeat here, only lower cover 3 of the present invention described in detail below.
Referring to Fig. 3 A-Fig. 4, the lower cover structure schematic diagram that Fig. 3 A is one embodiment of the invention, Fig. 3 B is the C-C sectional view of Fig. 3 A, the body structure schematic diagram that Fig. 4 is one embodiment of the invention.Lower cover 3 of the present invention, be arranged on the body 1 of Carburetor, described lower cover 3 is one to have the indent shell construction of accommodating cavity, the float chamber 4 that described accommodating cavity is described Carburetor, the top of described lower cover 3 is provided with the linkage structure 31 for being connected with described body 1, described body 1 is provided with body joint 11(referring to Fig. 4 corresponding to described linkage structure 31), the bottom of described lower cover 3 is provided with by the drain oil 32 of a connection piece 5 shutoff, described link 5 is connected with the main oil well 2 of described Carburetor through described drain oil 32, on described link 5, be provided with oil-feed path 51, on the borehole wall of described main oil well 2, be provided with and get oily path 21, describedly get oily path 21 and be communicated with the oil circuit of described main oil well 2 by described oil-feed path 51, the described least significant end of filler opening and the oil reservoir bottom surface of described float chamber 4 of getting oily path 21 is concordant.Between described link 5 and described lower cover 3, also can be provided with Sealing 7.Described lower cover 3 can be plastics once-through part, stainless steel part or aluminium alloy material materials and parts.Lower plastic cover can be antirust, is difficult for being corroded.
In the present embodiment, described linkage structure 31 can be a flange that is arranged on the outer, top of described lower cover 3, a plurality of lower cover attachment holes 33 are evenly set on described flange, described body joint 11 is the flange connector arranging corresponding to described flange, on described flange connector, corresponding to described lower cover attachment hole 33, is provided with body attachment hole 12.Or, described linkage structure 31 also can be a plurality of boss (referring to Fig. 3 A) of the outer, top that is evenly distributed on described lower cover 3, on described a plurality of boss, be respectively arranged with lower cover attachment hole 33, described body joint 11 is the connection boss (referring to Fig. 4) arranging corresponding to described boss, on described connection boss, corresponding to described lower cover attachment hole 33, is provided with body attachment hole 12.Wherein, described lower cover 3 is preferably fixed on lower cover 2 on Carburetor body 1 by four attachment screws 6, and described lower cover attachment hole 33 and described body attachment hole 12 are the tapped hole with described attachment screw 6 adaptations.The body attachment hole 12 of body 1 coordinates and will have higher validity with lower cover attachment hole 33, otherwise can affect the assembling of lower cover 3.
In the present embodiment, described lower cover 3 can comprise cylinder part 34 and circular cone portion 35, described cylinder part 34 is connected with the second arc surface 37 smooth transition by the first arc surface 36 with described circular cone portion 35, described linkage structure 31 is arranged on the top of described cylinder part 34, and described drain oil 32 is arranged on the bottom surface of described circular cone portion 35.Wherein, on the outer surface of described circular cone portion 35, also a plurality of stiffening ribs 38 can be evenly set.In the present embodiment, be preferably 4 stiffening ribs 38 are set symmetrically.
Wherein, described link 5 is preferably connecting bolt, described connecting bolt is coaxially connected with described main oil well 2, described oil-feed path 51 comprises oil-feed cross-drilled hole 511 and the oil-feed straight hole 512 interconnecting, described oil-feed straight hole 512 is coaxially arranged in described connecting bolt and is positioned at the threaded end of described connecting bolt and is communicated with the oil circuit of described main oil well 2, described oil-feed cross-drilled hole 511 be communicated with described oil-feed straight hole 512 and described in get oily path 21.
This Carburetor has the function of dryouting in addition, and directly that the gasoline afterburnt in lower cover 3 is flame-out without draining the oil, client carries out Oil drain operation without unscrewing oil discharge screw by craft again.After user uses motor and confirm that motor will place while not re-using for a long time, as snowplow, the seasonal product such as microtilling machine, now can turn off the oil switch (not shown) on the body 1 that is arranged on Carburetor, oil inlet hole one end of oil switch is connected with oil inlet pipe, oil outlet one end is connected with the oil-feed system of body 1, close after oil switch, blocking-up fuel oil enters the inner chamber of float chamber 4 again, stop supply engine fuel oil, then allow engine running a period of time, engine chamber is in acting process, the to-and-fro motion of piston makes in firing chamber to produce negative pressure and by intake manifold, to be passed in the Venturi tube of Carburetor, again by being arranged on the main jet pipe on main oil well 2, described main jet pipe is fitted in the wellhole of main oil well 2, its front end spout exposes in the Venturi tube of Carburetor, the lower end of described main jet pipe is connecting main jet, this main jet is by being screwed in the wellhole of main oil well 2 and being close to main jet pipe, described negative pressure is again by being arranged on the oil-feed path 51 in connecting bolt, finally by being arranged on the trapped fuel that oily path 21 is drawn in float chamber 4 of getting on main oil well 2, as everyone knows, the inside of float chamber 4 communicates with outside atmosphere by equalizing orifice, effect due to atmospheric pressure and motor negative pressure, trapped fuel in float chamber 4 can be blotted completely and burn and be clean, user carries out Oil drain operation without unscrewing oil-draining screw by craft again.
The present invention is fixed on lower cover on Carburetor body by linkage structure, lower cover there will not be the phenomenon and safer of spinning, connecting bolt not only connects lower cover and body, and its oil-feed path also plays a part oil-feed or drains the oil (while draining the oil, can directly unscrew connecting bolt, trapped fuel in float chamber is discharged by getting the oil-feed cross-drilled hole of oily path and connecting bolt), this Carburetor is directly drained the oil convenient, thorough from bottom.This Carburetor has the structure of dryouting in addition, directly that the gasoline afterburnt in lower cover is flame-out without draining the oil, and without unscrewing oil discharge screw by craft again, carries out Oil drain operation.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the lower cover of a Carburetor, be arranged on the body of Carburetor, described lower cover is one to have the indent shell construction of accommodating cavity, the float chamber that described accommodating cavity is described Carburetor, it is characterized in that, the top of described lower cover is provided with the linkage structure for being connected with described body, described body is provided with body joint corresponding to described linkage structure, the bottom of described lower cover is provided with by the drain oil of a connection piece shutoff, described link is connected with the main oil well of described Carburetor through described drain oil, on described link, be provided with oil-feed path, on the borehole wall of described main oil well, be provided with and get oily path, describedly get oily path and be communicated with the oil circuit of described main oil well by described oil-feed path, the described least significant end of filler opening and the oil reservoir bottom surface of described float chamber of getting oily path is concordant.
2. lower cover as claimed in claim 1, it is characterized in that, described linkage structure is one to be arranged on the flange of the outer, top of described lower cover, a plurality of lower cover attachment holes are evenly set on described flange, described body joint is the flange connector arranging corresponding to described flange, on described flange connector, corresponding to described lower cover attachment hole, is provided with body attachment hole.
3. lower cover as claimed in claim 1, it is characterized in that, described linkage structure is a plurality of boss that are evenly distributed on the outer, top of described lower cover, on described a plurality of boss, be respectively arranged with lower cover attachment hole, described body joint is the connection boss arranging corresponding to described boss, on described connection boss, corresponding to described lower cover attachment hole, is provided with body attachment hole.
4. the lower cover as described in claim 1,2 or 3, it is characterized in that, described lower cover comprises cylinder part and circular cone portion, described cylinder part is connected with the second arc surface smooth transition by the first arc surface with described circular cone portion, described linkage structure is arranged on the top of described cylinder part, and described drain oil is arranged on the bottom surface of described circular cone portion.
5. lower cover as claimed in claim 4, is characterized in that, on the outer surface of described circular cone portion, is also evenly provided with a plurality of stiffening ribs.
6. the lower cover as described in claim 1,2,3 or 5, it is characterized in that, described link is connecting bolt, described connecting bolt is coaxially connected with described main oil well, described oil-feed path comprises oil-feed cross-drilled hole and the oil-feed straight hole interconnecting, described oil-feed straight hole is coaxially arranged in described connecting bolt and is positioned at the threaded end of described connecting bolt and is communicated with the oil circuit of described main oil well, described oil-feed cross-drilled hole be communicated with described oil-feed straight hole and described in get oily path.
7. lower cover as claimed in claim 2 or claim 3, is characterized in that, described lower cover is connected with described body by attachment screw, and described lower cover attachment hole and described body attachment hole are the tapped hole with described attachment screw adaptation.
8. the lower cover as described in claim 1,2,3 or 5, is characterized in that, described lower cover is plastics once-through part, stainless steel part or aluminium alloy material materials and parts.
9. the lower cover as described in claim 1,2,3 or 5, is characterized in that, between described link and described lower cover, is also provided with Sealing.
10. a Carburetor, comprises the body of Carburetor, main oil well and lower cover, and described main oil well is arranged on described body, it is characterized in that, described lower cover is the lower cover described in any one in the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198754.8A CN104179597B (en) | 2013-05-24 | 2013-05-24 | A kind of carburetor and its lower cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198754.8A CN104179597B (en) | 2013-05-24 | 2013-05-24 | A kind of carburetor and its lower cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104179597A true CN104179597A (en) | 2014-12-03 |
| CN104179597B CN104179597B (en) | 2017-07-04 |
Family
ID=51960898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310198754.8A Active CN104179597B (en) | 2013-05-24 | 2013-05-24 | A kind of carburetor and its lower cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179597B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812354A (en) * | 2019-03-16 | 2019-05-28 | 福建省大立通用机电制造有限公司 | A modified oil drain structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3338565A (en) * | 1964-04-25 | 1967-08-29 | Fichtel & Sachs Ag | Carburetor |
| US5368788A (en) * | 1993-04-16 | 1994-11-29 | Boyesen; Eyvind | Float bowl for carburetors |
| JP2000329007A (en) * | 1999-05-20 | 2000-11-28 | Keihin Corp | Vaporizer drain device |
| CN2435527Y (en) * | 2000-08-15 | 2001-06-20 | 福建华龙化油器有限公司 | Oil draw-off device for carburettor |
| CN1484733A (en) * | 2000-10-20 | 2004-03-24 | �ٹ��� | Priming system for engine carburetors |
| CN202690251U (en) * | 2012-07-10 | 2013-01-23 | 陈俭敏 | Carbureter and oil inlet system thereof |
| CN203296956U (en) * | 2013-05-24 | 2013-11-20 | 陈俭敏 | Carburetor and lower cover thereof |
-
2013
- 2013-05-24 CN CN201310198754.8A patent/CN104179597B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3338565A (en) * | 1964-04-25 | 1967-08-29 | Fichtel & Sachs Ag | Carburetor |
| US5368788A (en) * | 1993-04-16 | 1994-11-29 | Boyesen; Eyvind | Float bowl for carburetors |
| JP2000329007A (en) * | 1999-05-20 | 2000-11-28 | Keihin Corp | Vaporizer drain device |
| CN2435527Y (en) * | 2000-08-15 | 2001-06-20 | 福建华龙化油器有限公司 | Oil draw-off device for carburettor |
| CN1484733A (en) * | 2000-10-20 | 2004-03-24 | �ٹ��� | Priming system for engine carburetors |
| CN202690251U (en) * | 2012-07-10 | 2013-01-23 | 陈俭敏 | Carbureter and oil inlet system thereof |
| CN203296956U (en) * | 2013-05-24 | 2013-11-20 | 陈俭敏 | Carburetor and lower cover thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812354A (en) * | 2019-03-16 | 2019-05-28 | 福建省大立通用机电制造有限公司 | A modified oil drain structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104179597B (en) | 2017-07-04 |
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