CN214273819U

CN214273819U - Welding structure for plastic cylinder cover cap

Info

Publication number: CN214273819U
Application number: CN202120024876.5U
Authority: CN
Inventors: 何登; 黄山; 吴本新; 黄国华; 武海刚; 莫佳器
Original assignee: Guangxi Fangxin Technology Co ltd
Current assignee: Guangxi Fangxin Technology Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-24
Anticipated expiration: 2031-01-06

Abstract

The utility model discloses a plastic cylinder cover welding structure, relating to the technical field of automobile accessory manufacturing; the plastic cylinder cover cap comprises a plastic cylinder cover cap body provided with a front baffle, wherein the inner wall of the front baffle is connected with an oil-gas separator through two side plates, the lower surfaces of the two ends of the oil-gas separator are respectively provided with an outer convex part, a middle concave part and an inner convex part which are sequentially connected from outside to inside, the upper surface of each side plate is provided with a middle convex part, the front end of each middle convex part is embedded into the middle concave part, and the upper surface of each middle convex part is welded with the middle concave part after being embedded. Compared with the prior art, the utility model discloses can solve present plastics cylinder shroud body and oil and gas separator after the welding, the welding slag can spill over the problem that influences the part cleanliness from the gap.

Description

Welding structure for plastic cylinder cover cap

Technical Field

The utility model belongs to the technical field of auto-parts makes the technique and specifically relates to a plastics cylinder shroud welded structure.

Background

The plastic cylinder cover is a cover covering the cylinder body of the engine, and has the functions of preventing external impurities from entering the engine, preventing internal engine oil from leaking, separating oil mist, regulating pressure of a crankcase, transmitting noise by an isolation structure, and serving as an installation support of other parts. As shown in fig. 1 and 2, the current plastic cylinder cover welding structure includes a plastic cylinder cover body provided with a front baffle 101, the inner wall of the front baffle 101 is connected with an oil-gas separator 103 through two side plates 102, the lower surfaces of two ends of the oil-gas separator 103 are respectively provided with a first protruding part 104, a first recessed part 105, a second protruding part 106, a second recessed part 107 and a third protruding part 108 which are sequentially connected from outside to inside, the front end of the second protruding part 106 is embedded into the upper surface of the side plate 102, the side wall of the front end of the embedded second protruding part 106 is welded with the side plate 102, the width L1 of the upper surface of the side plate 102 is 4 mm, the width L2 of the second protruding part is 1.5 mm, the height H1 of the second protruding part is 3 mm, the embedding depth H2 of the front end of the second protruding part is 1 mm, and the heights H3 and H4 of the first protruding part are both 1.8 mm; the welding structure ensures that welding slag after welding is just positioned on the upper surface of the side plate 102 of the plastic cylinder cover body and at the position of a gap between the first protruding part 104 and the third protruding part 108 of the oil-gas separator 103, the welding slag can overflow from the gap to influence the cleanliness of parts, the welding position of the plastic cylinder cover body and the oil-gas separator is only embedded into the side wall by 1 mm of the front end of the second protruding part, the welding strength is low, the explosion pressure after welding is less than 0.4 MPa, and the detection requirement that the explosion pressure is more than or equal to 0.4 MPa cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plastics cylinder shroud welded structure, it can solve present plastics cylinder shroud body and oil and gas separator after the welding, and the welding slag can spill over the problem that influences the part cleanliness from the gap.

In order to solve the above problem, the utility model discloses a technical scheme is: the plastic cylinder cover cap welding structure comprises a plastic cylinder cover cap body provided with a front baffle, wherein the inner wall of the front baffle is connected with an oil-gas separator through two side plates, the lower surfaces of the two ends of the oil-gas separator are respectively provided with an outer convex part, a middle concave part and an inner convex part which are sequentially connected from outside to inside, the upper surface of each side plate is provided with a middle convex part, the front end of each middle convex part is embedded into the corresponding middle concave part, and the upper surface of each middle convex part is welded with the corresponding middle concave part after being embedded.

In the above technical solution, a more specific technical solution may also be: the width of the middle boss is 2 mm.

Further, the height of the middle convex part is 3.2 mm, and the embedding depth of the front end is 1.2 mm.

Further, the height of the outer boss and the inner boss is 1.8 mm.

Further, the width of the middle concave part is 5.6 mm.

Further, the width of the upper surface of the side plate is 6 mm.

Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:

the utility model discloses change the unsmooth position of curb plate and oil and gas separator hookup location in the plastics cylinder shroud body to set up the welding position at the upper surface of curb plate middle bulge, the welding slag after the welding can remain the front end lateral wall position that middle bulge imbeds middle depressed part, apart from the curb plate both ends, and the gap position between the outer bulge of oil and gas separator and the inner bulge is far away, can't spill over, has guaranteed the cleanliness of part; and the utility model discloses increased the width of curb plate upper surface, and the degree of depth at embedding position, still with the welding position that only has the 1 millimeter degree of depth of second bellying front end embedding position lateral wall among the prior art, the adjustment does the utility model discloses the width of middle bellying front end embedding position upper surface 2 millimeters to guarantee welding strength, make burst pressure be greater than or equal to 0.4 MPa, reach the detection requirement.

Drawings

FIG. 1 is a schematic structural view of a welded structure of a plastic cylinder head cover in the prior art;

FIG. 2 is an enlarged view taken at I in FIG. 1;

fig. 3 is a schematic structural diagram of the present invention;

fig. 4 is an enlarged view at J in fig. 3.

Detailed Description

The invention will be described in more detail with reference to the following embodiments:

the plastic cylinder cover welding structure shown in fig. 3 and 4 comprises a plastic cylinder cover body provided with a front baffle 1, wherein the inner wall of the front baffle 1 is connected with an oil-gas separator 3 through two side plates 2, the lower surfaces of two ends of the oil-gas separator 3 are respectively provided with an outer convex part 3-1, a middle concave part 3-2 and an inner convex part 3-3 which are sequentially connected from outside to inside, the upper surface of each side plate 2 is provided with a middle convex part 2-1, the front end of the middle convex part 2-1 is embedded into the middle concave part 3-2, and the upper surface of the middle convex part 2-1 after being embedded is welded with the middle concave part 3-2.

The width L3 of the middle protrusion is 2 mm, the height H5 of the middle protrusion is 3.2 mm, the embedding depth H6 of the front end is 1.2 mm, the height H7 of the outer protrusion and the height H8 of the inner protrusion are 1.8 mm, the width L4 of the middle recess 3-2 is 5.6 mm, and the width L5 of the upper surface of the side plate 2 is 6 mm.

The utility model changes the concave-convex part of the connecting position of the side plate 2 and the oil-gas separator 3 in the plastic cylinder cover body, and sets the welding position on the upper surface of the middle convex part 2-1 of the side plate 2, the welding slag after welding can be left at the front end side wall position of the middle convex part 2-1 embedded into the middle concave part 3-2, and is far away from the gap position between the outer convex part 3-1 and the inner convex part 3-3 of the oil-gas separator 3 from the two ends of the side plate 2, so that the welding slag can not overflow, and the cleanliness of parts is ensured; and the utility model discloses increased the width of curb plate upper surface, and the degree of depth at embedding position, still with the welding position that only has the 1 millimeter degree of depth of second bellying front end embedding position lateral wall among the prior art, the adjustment does the utility model discloses the width of 2 millimeters at middle bellying 2-1 front end embedding position upper surface to guarantee welding strength, make burst pressure be more than or equal to 0.4 MPa, reach the detection requirement.

Claims

1. The utility model provides a plastics cylinder shroud welded structure, is including the plastics cylinder shroud body that is equipped with preceding baffle, preceding baffle is connected with oil and gas separator, its characterized in that through two blocks of curb plates in the inner wall: the oil-gas separator is characterized in that outer convex portions, middle concave portions and inner convex portions which are sequentially connected are arranged on the lower surfaces of the two ends of the oil-gas separator from outside to inside, middle convex portions are arranged on the upper surfaces of the side plates, the front ends of the middle convex portions are embedded into the middle concave portions, and the upper surfaces of the middle convex portions are welded with the middle concave portions after the middle convex portions are embedded.

2. The plastic cylinder head cover welded structure according to claim 1, wherein: the width of the middle boss is 2 mm.

3. The plastic cylinder head cover welding structure according to claim 1 or 2, wherein: the height of the middle convex part is 3.2 mm, and the embedding depth of the front end is 1.2 mm.

4. The plastic cylinder head cover welded structure according to claim 3, wherein: the height of the outer boss and the inner boss is 1.8 millimeters.

5. The plastic cylinder head cover welded structure according to claim 4, wherein: the width of the middle depression is 5.6 millimeters.

6. The plastic cylinder head cover welded structure according to claim 5, wherein: the width of the upper surface of the side plate is 6 mm.