Sealed crankcase cover
By designing a sealing groove, sealing ring, fixing plate and heat dissipation frame on the crankcase cover, a double seal is achieved, solving the problem of easy breakage of the sealing sticker, improving sealing performance and ease of disassembly, and providing heat dissipation function.
Patent Information
- Application Number
- CN202520578244.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The existing crankcase cover is prone to breakage during use, which increases the difficulty of disassembly and renders it unusable, thus affecting the sealing performance.
A sealed crankcase cover was designed, which adopts a structure of sealing groove, sealing ring, fixing plate, sealing gasket and heat dissipation frame to achieve double sealing. Combined with waterproof and breathable membrane and heat dissipation fins, the sealing and heat dissipation effects are enhanced.
It improves the sealing between the crankcase and the cover, reduces the difficulty of disassembly, maintains a good sealing effect, and also has a heat dissipation function.
Smart Images
Figure CN223676388U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of crankcase, and relates to a crankcase cover, in particular to a sealed crankcase cover. BACKGROUND
[0002] The part of the cylinder block used for installing the crankshaft is called the crankcase, and the crankcase is divided into an upper crankcase and a lower crankcase. The upper crankcase is integrally cast with the cylinder block, and the lower crankcase is used for storing lubricating oil and enclosing the upper crankcase. The oil pan is subjected to very small stress, and its shape depends on the overall arrangement of the engine and the capacity of the oil.
[0003] In the prior art, in order to ensure the sealing between the box body and the cover body, a sealing sticker is usually attached for sealing. However, the sealing sticker has adhesion, which increases the difficulty of disassembling the crankcase cover, and the sealing sticker is usually broken after disassembly and cannot be used again. Therefore, it is of great significance to design a sealed crankcase cover. SUMMARY
[0004] The utility model discloses a sealed crankcase cover which aims at the above problems in the prior art.
[0005] The utility model discloses a sealed crankcase cover, which is characterized by comprising a cover body, a sealing groove is formed in the cover body, a sealing ring is clamped in the sealing groove, a fixed plate is fixedly arranged on the outer side of the cover body, a sealing pad one is fixedly arranged on the inner side of the fixed plate, a heat dissipation opening is formed in the cover body, a heat dissipation frame is arranged on the inner side of the heat dissipation opening, a sealing pad two is fixedly arranged on the outer side of the heat dissipation frame, and the outer side of the sealing pad two is tightly attached to the inner wall of the heat dissipation opening.
[0006] In the sealed crankcase cover, a waterproof and breathable film for heat dissipation is arranged on the inner side of the heat dissipation frame, heat dissipation fins for heat dissipation are arranged on the heat dissipation frame, and a heat insulation frame is fixedly arranged between the heat dissipation frame and the waterproof and breathable film.
[0007] In the sealed crankcase cover, two symmetrical L-shaped plates are slidingly arranged on the two sides of the heat dissipation frame, springs are fixedly arranged between the L-shaped plates and the heat dissipation frame, and positioning grooves matched with the L-shaped plates are formed in the inner wall of the heat dissipation opening.
[0008] In the sealed crankcase cover, limiting blocks are fixedly arranged on the two sides of the L-shaped plate, and sliding grooves matched with the limiting blocks are formed in the heat dissipation frame.
[0009] Compared with the prior art, the sealed crankcase cover realizes double density between the cover body and the crankcase, and improves the sealing between the crankcase and the cover body. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 This is a three-dimensional schematic diagram of the sealed crankcase cover.
[0011] Figure 2 This is a schematic diagram of the heat dissipation frame of this sealed crankcase cover.
[0012] Figure 3 This is a schematic diagram of the heat dissipation vent of this sealed crankcase cover.
[0013] Figure 4 This is a sealed crankcase cover. Figure 2 A schematic diagram of the structure at point A in the middle.
[0014] Figure 5 This is a schematic diagram of the structure of the L-shaped plate of this sealed crankcase cover.
[0015] In the diagram, 1. Cover; 2. Sealing groove; 3. Sealing ring; 4. Fixing plate; 5. Sealing gasket one; 6. Heat dissipation vent; 7. Heat dissipation frame; 8. Sealing gasket two; 9. Waterproof and breathable membrane; 10. Heat dissipation fin; 11. Heat insulation frame; 12. L-shaped plate; 13. Spring; 14. Positioning groove; 15. Limiting block; 16. Slide groove. Detailed Implementation
[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0017] like Figures 1-5 As shown, this sealed crankcase cover includes a cover body 1, a sealing groove 2 on the cover body 1, a sealing ring 3 snapped into the sealing groove 2, a fixing plate 4 fixedly installed on the outer side of the cover body 1, a sealing gasket 5 fixedly installed on the inner side of the fixing plate 4, a heat dissipation vent 6 on the cover body 1, a heat dissipation frame 7 installed on the inner side of the heat dissipation vent 6, and a sealing gasket 8 fixedly installed on the outer side, with the outer side of the sealing gasket 8 tightly fitted to the inner wall of the heat dissipation vent 6. When the crankcase cover 1 is installed with the crankcase, the sealing ring 3 can seal between the cover body 1 and the crankcase, increasing the sealing performance. At the same time, the sealing gasket 5 on the fixing plate 4 can fit into the gap connecting the cover body 1 and the crankcase, forming a double seal, which improves the sealing performance between the crankcase and the cover body 1. The sealing gasket 8 makes the sealing performance between the heat dissipation frame 7 and the cover body 1 even better.
[0018] Preferably, the inside of the heat dissipation frame 7 is provided with a waterproof and breathable film 9 for heat dissipation, the heat dissipation frame 7 is provided with a heat dissipation fin 10 for heat dissipation, and a heat insulation frame 11 is fixedly arranged between the heat dissipation frame 7 and the waterproof and breathable film 9, the heat dissipation frame 7 is used for dissipating heat in the crankcase, the waterproof and breathable film 9 can prevent dust and water from entering the crankcase, and the heat insulation frame 11 can prevent the heat dissipation frame 7 from damaging the waterproof and breathable film 9.
[0019] Preferably, two symmetrical L-shaped plates 12 are slidingly arranged on both sides of the heat dissipation frame 7, springs 13 are fixedly arranged between the L-shaped plates 12 and the heat dissipation frame 7, positioning grooves 14 are formed in the inner wall of the heat dissipation opening 6 and are matched with the L-shaped plates 12, the L-shaped plates 12 are clamped into the positioning grooves 14 under the action of the springs 13, and the heat dissipation frame 7 can be installed.
[0020] Preferably, limiting blocks 15 are fixedly arranged on both sides of the L-shaped plates 12, and sliding grooves 16 are formed in the heat dissipation frame 7 and are matched with the limiting blocks 15, so that the L-shaped plates 12 can stably move under the action of the springs 13.
[0021] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.
[0022] Although the terms such as cover 1, sealing groove 2, sealing ring 3, fixed plate 4, sealing gasket 1 5, heat dissipation opening 6, heat dissipation frame 7, sealing gasket 2 8, waterproof and breathable film 9, heat dissipation fin 10, heat insulation frame 11, L-shaped plate 12, spring 13, positioning groove 14, limiting block 15 and sliding groove 16 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any additional limitation is contrary to the spirit of the present application.
Claims
1. A sealed crankcase cover, characterized in that The utility model relates to a cover (1) is provided with sealing recess (2) on, sealing recess (2) is provided with sealing ring (3) in, the outside fixed setting of cover (1) is provided with fixed plate (4), the inside fixed setting of fixed plate (4) is provided with sealing pad one (5), the outside fixed setting of cover (1) is provided with heat dissipation mouth (6), heat dissipation mouth (6) is provided with heat dissipation frame (7) inside, is provided with sealing pad two (8) outside fixedly, and sealing pad two (8) outside and heat dissipation mouth (6) inner wall closely.
2. A sealed crankcase cover according to claim 1, characterized in that The inside of heat dissipation frame (7) is provided with waterproof breathable membrane (9) for heat dissipation, the heat dissipation fin (10) for heat dissipation is provided on heat dissipation frame (7), and heat dissipation frame (7) and waterproof breathable membrane (9) are fixedly provided with heat insulation frame (11) between.
3. A sealed crankcase ventilation system according to claim 1 wherein, The both sides of heat dissipation frame (7) are provided with two symmetrical L-shaped plates (12) slidingly, spring (13) is fixedly arranged between L-shaped plate (12) and heat dissipation frame (7), and the inner wall of heat dissipation mouth (6) is provided with positioning groove (14) matched with the clamping of L-shaped plate (12).
4. A sealed crankcase ventilation system according to claim 3 wherein, The both sides of L-shaped plate (12) are fixedly provided with limiting block (15), and the sliding slot (16) matched with limiting block (15) is formed in heat dissipation frame (7).