Oil drainage mechanism of carburetor

Abstract

The utility model relates to the technical field of carburetors, in particular to an oil drainage mechanism of a carburetor, which comprises a carburetor body and a plunger. The carburetor body comprises an air inlet, a reciprocating groove and a cover body, the plunger is arranged in the reciprocating groove, a cooling groove is formed in the carburetor body on the periphery of the reciprocating groove, and the cover body covers the cooling groove to seal the cooling groove; a heat dissipation through hole communicated with the cooling groove is formed in the air inlet, and the tail end of the heat dissipation through hole faces the reciprocating groove; the cooling tank is also provided with an air outlet hole which is communicated with the outside; according to the carburetor, the cooling groove is formed in the periphery of the reciprocating groove and combined with the cover body to achieve sealing of the reciprocating groove, air can be sucked in through the heat dissipation through holes communicated with the cooling groove, the carburetor body corresponding to the cooling groove and the reciprocating groove and the plunger are cooled through the air, and airflow cooling is achieved; and in combination with an air outlet hole connected with the outside, the problem that the plunger is difficult to lift due to overlarge pressure in the cooling tank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of carburetors, in particular to an oil discharge mechanism of a carburetors. Background Art

[0002] The carburetor mixes a certain amount of fuel with air, and provides the required mixed gas according to the requirements of the engine under various working conditions, so that the engine can operate normally. In the carburetor of the prior art, the oil release mechanism of the carburetor refers to the plunger, and the throttle opening is adjusted by the up and down movement of the plunger to achieve oil release. If the carburetor works for a period of time under high temperature conditions or the throttle is adjusted frequently, the temperature will rise, and the reciprocating friction of the plunger will also generate heat. Since the plunger is generally made of plastic, the temperature rise will soften the plunger, resulting in unstable cooperation with the carburetor, which in turn leads to the problem of unstable oil supply of the carburetor. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide an oil drain mechanism for a carburetor.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An oil discharge mechanism of a carburetor comprises a carburetor body and a plunger;

[0006] The carburetor body comprises an air inlet, a reciprocating groove and a cover body, the plunger is arranged in the reciprocating groove, a cooling groove is arranged on the carburetor body at the periphery of the reciprocating groove, and the cover body is installed on the cooling groove to achieve the sealing of the cooling groove;

[0007] The air inlet is provided with a heat dissipation through hole connected to the cooling groove, and the end of the heat dissipation through hole is arranged toward the reciprocating groove;

[0008] The cooling groove is also provided with an air outlet, the air outlet is communicated with the outside, and a one-way valve is provided on the air outlet.

[0009] Preferably, the included angle between the heat dissipation through hole and the air outlet hole is 180°.

[0010] Preferably, two bottom grooves are formed at the bottom of the cooling groove, and the heat dissipation holes and the air outlet holes are respectively arranged on the two bottom grooves.

[0011] Preferably, the heat dissipation through hole is located on a side wall of the corresponding bottom groove away from the reciprocating groove.

[0012] Preferably, the edges of the bottom groove, the cooling groove and the reciprocating groove are polished.

[0013] Preferably, a partition plate is provided in the air inlet, and the partition plate divides the air inlet into a working area and a cooling area, and the heat dissipation through holes are provided in the cooling area.

[0014] Preferably, there are two heat dissipation through holes.

[0015] Preferably, a sealing ring is provided on the cover body and the carburetor body at the periphery of the cooling groove.

[0016] The beneficial effects of the utility model are as follows: by arranging a cooling groove on the periphery of the reciprocating groove and combining it with a cover body to achieve its closure, air can be sucked in by using the heat dissipation through holes connected to the cooling groove, and the cooling groove, the carburetor body corresponding to the reciprocating groove and the plunger are cooled by the air, thereby achieving airflow cooling; combined with the air outlet hole connected to the outside world, the problem of excessive pressure in the cooling groove making it difficult to lift the plunger is avoided, and it is ensured that the plunger can still have the function of adjusting the throttle under the condition of sufficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows a structural schematic diagram of an oil discharge mechanism of a carburetor according to a specific embodiment of the utility model;

[0018] Figure 2 The figure shows an exploded view of an oil discharge mechanism of a carburetor according to a specific embodiment of the utility model;

[0019] Figure 3 The figure is a first angle structural schematic diagram of a carburetor body of an oil discharge mechanism of a carburetor according to a specific embodiment of the utility model;

[0020] Figure 4 The figure is a second angle structural schematic diagram of a carburetor body of an oil discharge mechanism of a carburetor according to a specific embodiment of the utility model;

[0021] Explanation of reference numerals: 1. Carburetor body; 11. Air inlet; 12. Reciprocating groove; 13. Cover; 14. Cooling groove; 15. Heat dissipation hole; 16. Air outlet; 17. Bottom groove; 2. Plunger; 3. Partition plate; 31. Working area; 32. Cooling area. DETAILED DESCRIPTION

[0022] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0023] Please refer to Figures 1 to 4 As shown, a carburetor with a plunger 2 cooling function of the utility model comprises a carburetor body 1 and a plunger 2;

[0024] The carburetor body 1 includes an air inlet 11, a reciprocating groove 12 and a cover 13. The plunger 2 is arranged in the reciprocating groove 12. A cooling groove 14 is arranged on the carburetor body 1 at the periphery of the reciprocating groove 12. The cover 13 is mounted on the cooling groove 14 to achieve the sealing of the cooling groove 14.

[0025] The air inlet 11 is provided with a heat dissipation through hole 15 communicating with the cooling groove 14, and the end of the heat dissipation through hole 15 is arranged toward the reciprocating groove 12;

[0026] The cooling groove 14 is further provided with an air outlet 16 , which is communicated with the outside and has a one-way valve.

[0027] From the above description, it can be known that by arranging a cooling groove 14 on the periphery of the reciprocating groove 12 and combining it with the cover body 13 to achieve its closure, air can be sucked in by using the heat dissipation through hole 15 connected to the cooling groove 14, and the cooling groove 14, the carburetor body 1 corresponding to the reciprocating groove 12 and the plunger 2 are cooled by the air, thereby realizing airflow cooling; combined with the air outlet 16 connected to the outside world, the problem of excessive pressure in the cooling groove 14 making it difficult to lift the plunger 2 is avoided, thereby ensuring that the plunger 2 can still have the function of adjusting the throttle under the condition of sufficient heat dissipation.

[0028] Furthermore, the included angle between the heat dissipation through hole 15 and the air outlet hole 16 is 180°.

[0029] It can be seen from the above description that the included angle between the heat dissipation through hole 15 and the air outlet hole 16 is 180°, which can ensure the contact area of ​​the heat dissipation airflow.

[0030] Furthermore, two bottom grooves 17 are formed at the bottom of the cooling groove 14 , and the heat dissipation holes 15 and the air outlet holes 16 are respectively arranged on the two bottom grooves 17 .

[0031] It can be seen from the above description that the arrangement of the bottom groove 17 can increase the distance of the airflow, thereby improving the heat dissipation effect.

[0032] Furthermore, the heat dissipation through hole 15 is located on a side wall of the corresponding bottom groove 17 away from the reciprocating groove 12 .

[0033] From the above description, it can be seen that the heat dissipation through hole 15 is located on the side wall of the corresponding bottom groove 17 away from the reciprocating groove 12, so that the outflowing airflow can directly cool the side walls of the reciprocating groove 12, thereby improving the cooling effect.

[0034] Furthermore, the edges of the bottom groove 17, the cooling groove 14 and the reciprocating groove 12 are polished.

[0035] From the above description, it can be seen that by polishing the bottom groove 17, the cooling groove 14 and the reciprocating groove 12, burrs and other debris can be reduced to prevent them from entering the plunger 2 and the reciprocating groove 12, and the air flow resistance can also be reduced.

[0036] Furthermore, a partition plate 3 is disposed in the air inlet 11 , and the partition plate 3 divides the air inlet 11 into a working area 31 and a cooling area 32 . The heat dissipation through holes 15 are disposed in the cooling area 32 .

[0037] It can be seen from the above description that by dividing the areas, it is possible to avoid mutual interference between the airflows in the two areas.

[0038] Furthermore, there are two heat dissipation holes 15 .

[0039] Furthermore, a sealing ring is provided on the carburetor body 1 at the periphery of the cover 13 and the cooling groove 14 .

[0040] It can be seen from the above description that the sealing performance can be improved by providing a sealing ring.

[0041] Embodiment 1

[0042] A carburetor with a plunger 2 cooling function, comprising a carburetor body 1 and a plunger 2;

[0043] The carburetor body 1 includes an air inlet 11, a reciprocating groove 12 and a cover 13. The plunger 2 is arranged in the reciprocating groove 12. A cooling groove 14 is arranged on the carburetor body 1 at the periphery of the reciprocating groove 12. The cover 13 is mounted on the cooling groove 14 to achieve the sealing of the cooling groove 14.

[0044] The air inlet 11 is provided with a heat dissipation through hole 15 communicating with the cooling groove 14, and the end of the heat dissipation through hole 15 is arranged toward the reciprocating groove 12;

[0045] The cooling groove 14 is further provided with an air outlet 16 , which is communicated with the outside and has a one-way valve.

[0046] The included angle between the heat dissipation through hole 15 and the air outlet hole 16 is 180°.

[0047] The cooling groove 14 has two bottom grooves 17 at its bottom, and the heat dissipation holes 15 and the air outlet holes 16 are respectively disposed on the two bottom grooves 17 .

[0048] The heat dissipation through hole 15 is located on a side wall of the corresponding bottom groove 17 away from the reciprocating groove 12 .

[0049] The edges of the bottom groove 17, the cooling groove 14 and the reciprocating groove 12 are polished.

[0050] A partition plate 3 is disposed in the air inlet 11 , and the partition plate 3 divides the air inlet 11 into a working area 31 and a cooling area 32 . The heat dissipation through holes 15 are disposed in the cooling area 32 .

[0051] There are two heat dissipation through holes 15 .

[0052] A sealing ring is provided on the carburetor body 1 at the periphery of the cover 13 and the cooling groove 14 .

[0053] Embodiment 2

[0054] A carburetor with a plunger 2 cooling function, comprising a carburetor body 1 and a plunger 2;

[0055] The carburetor body 1 includes an air inlet 11, a reciprocating groove 12 and a cover 13. The plunger 2 is arranged in the reciprocating groove 12. A cooling groove 14 is arranged on the carburetor body 1 at the periphery of the reciprocating groove 12. The cover 13 is mounted on the cooling groove 14 to achieve the sealing of the cooling groove 14.

[0056] The air inlet 11 is provided with a heat dissipation through hole 15 communicating with the cooling groove 14, and the end of the heat dissipation through hole 15 is arranged toward the reciprocating groove 12;

[0057] The cooling groove 14 is further provided with an air outlet 16 , which is communicated with the outside and has a one-way valve.

[0058] The cooling groove 14 has two bottom grooves 17 at its bottom, and the heat dissipation holes 15 and the air outlet holes 16 are respectively disposed on the two bottom grooves 17 .

[0059] The heat dissipation through hole 15 is located on a side wall of the corresponding bottom groove 17 away from the reciprocating groove 12 .

[0060] The edges of the bottom groove 17, the cooling groove 14 and the reciprocating groove 12 are polished.

[0061] A sealing ring is provided on the carburetor body 1 at the periphery of the cover 13 and the cooling groove 14 .

[0062] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A carburetor oil discharge mechanism, characterized in that: Includes carburetor body and plunger; The carburetor body comprises an air inlet, a reciprocating groove and a cover body, the plunger is arranged in the reciprocating groove, a cooling groove is arranged on the carburetor body at the periphery of the reciprocating groove, and the cover body is installed on the cooling groove to achieve the sealing of the cooling groove; The air inlet is provided with a heat dissipation through hole connected to the cooling groove, and the end of the heat dissipation through hole is arranged toward the reciprocating groove; The cooling groove is also provided with an air outlet, the air outlet is communicated with the outside, and a one-way valve is provided on the air outlet.

2. The oil drain mechanism of the carburetor according to claim 1, characterized in that: The included angle between the heat dissipation through hole and the air outlet hole is 180°.

3. The oil drain mechanism of the carburetor according to claim 1, characterized in that: The bottom of the cooling groove is provided with two bottom grooves, and the heat dissipation through holes and the air outlet holes are respectively arranged on the two bottom grooves.

4. The oil drain mechanism of the carburetor according to claim 3, characterized in that: The heat dissipation through hole is located on a side wall of the corresponding bottom groove away from the reciprocating groove.

5. The oil drain mechanism of the carburetor according to claim 3, characterized in that: The edges of the bottom groove, the cooling groove and the reciprocating groove are polished.

6. The oil drain mechanism of the carburetor according to claim 1, characterized in that: A partition plate is arranged in the air inlet, and the partition plate divides the air inlet into a working area and a cooling area. The heat dissipation through holes are arranged in the cooling area.

7. The oil drain mechanism of the carburetor according to claim 1, characterized in that: There are two heat dissipation through holes.

8. The oil drain mechanism of the carburetor according to claim 1, characterized in that: A sealing ring is arranged on the carburetor body at the periphery of the cover body and the cooling groove.

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