Cylinder cover assembly for automobile engine

Abstract

The utility model relates to the technical field of engine cylinder covers, and discloses a cylinder cover assembly for an automobile engine, which comprises a cylinder head, a plurality of cylindrical shells are slidably connected to the outside of the top end of the cylinder head, top blocks are fixedly connected to the top ends of the cylindrical shells, screw rods are in threaded connection with the inner walls of the top blocks, and knobs are fixedly connected to the top ends of the screw rods. The top end of the exterior of the cylindrical shell is in threaded connection with a cylindrical ring, the top end of the inner wall of the cylindrical shell is fixedly connected with a fixing block, the middle of the inner wall of the cylindrical shell is fixedly connected with a limiting column, the bottom end of the inner wall of the cylindrical shell is slidably connected with a base plate, the four sides of the top end of the base plate are rotationally connected with clamping jaws, and the four sides of the bottom end of the cylindrical shell are provided with grooves. The cylinder cover assembly and the engine are effectively and strongly fixed, the sealing performance of the cylinder cover assembly and the engine is ensured, the engine is prevented from being overheated and damaged, and the purpose of prolonging the service life of equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cylinder covers, in particular to a cylinder cover assembly for an automobile engine. Background Art

[0002] The cylinder head assembly is a key component in internal combustion engines, especially automobile engines. It is located at the top of the engine, covers and seals the cylinder to form a combustion chamber, which helps to ensure that the combustion gas in the cylinder does not leak, thereby driving the piston to move. In automobile engines, the design and maintenance of the cylinder head assembly is one of the key factors to ensure the normal operation of the engine.

[0003] After searching, Chinese patent announcement number: CN216381631U discloses an engine cylinder head and power assembly, including a cylinder head body and a heat insulation sleeve; the cylinder head body is provided with a push rod hole and a bolt hole, the push rod hole is arranged along the thickness direction of the cylinder head body, one end of the bolt hole is located on the side of the cylinder head body, and the other end of the bolt hole is connected to the push rod hole; the heat insulation sleeve is arranged in the push rod hole, and the heat insulation sleeve is used to isolate the other end of the bolt hole from the push rod hole. The utility model relates to the technical field of engine cylinder heads. The engine cylinder head and power assembly can block the heat at part of the bolt hole, reduce the probability of deformation of the position of the cylinder head exhaust pipe bolt hole, and thus reduce the probability of oil leakage at the position of the push rod hole.

[0004] The beneficial effects in the above patent specification mention that "it can block the heat at part of the bolt holes, reduce the probability of deformation of the cylinder head exhaust pipe bolt hole position, and thus reduce the probability of oil leakage failure at the push rod hole position." Although the above patent can reduce the probability of oil leakage failure at the push rod hole position, during specific use, the cylinder head assembly for the engine is usually only fixed around it with screws. The engine will experience high temperature and high pressure during operation. If the cylinder head is not firmly fixed, it will cause gas leakage, reducing the sealing of the combustion chamber. For this reason, a cylinder head assembly for an automobile engine is proposed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a cylinder head assembly for an automobile engine, aiming to improve the prior art in which screws are only used to fix it around the cylinder head. The engine will experience high temperature and high pressure during operation. If the cylinder head is not firmly fixed, it will cause gas leakage and reduce the sealing of the combustion chamber.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cylinder head assembly for an automobile engine comprises a cylinder head, wherein the top external part of the cylinder head is slidably connected to a plurality of column shells, the top of the column shells is fixedly connected to a top block, the inner wall of the top block is threadedly connected to a screw rod, the top of the screw rod is fixedly connected to a knob, the external top end of the column shells is threadedly connected to a column ring, the top of the inner wall of the column shells is fixedly connected to a fixed block, the middle part of the inner wall of the column shells is fixedly connected to a limiting column, the bottom end of the inner wall of the column shells is slidably connected to a chassis, the top four sides of the chassis are rotatably connected to clamping claws, the bottom four sides of the bottom of the column shells are provided with grooves, the bottom four sides of the inner wall of the column shells are fixedly connected to clamping blocks, and the external bottom ends of the plurality of column shells are slidably connected to buffer components.

[0008] Furthermore, the buffer assembly includes a base, a slide groove is opened inside the base, a plurality of springs are arranged inside the slide groove, the inner wall of the slide groove is slidably connected to a top plate, the outside of the top plate is fixedly connected to a limiting block, and the top end of the top plate is fixedly connected to a rubber pad.

[0009] Furthermore, one end of the spring is fixedly connected to one side of the inner wall of the slide groove, and the other end of the spring is fixedly connected to one side of the top plate.

[0010] Furthermore, the outside of the top plate is slidably connected to the inner wall of the slide groove, and the outer side wall of the clamping claw is slidably connected to the bottom end of the inner wall of the column shell.

[0011] Furthermore, the exteriors of the plurality of column shells are all slidably connected to the inner wall of the top plate, and the exteriors of the plurality of column shells are all slidably connected to the inner wall of the rubber pad.

[0012] Furthermore, the external thread of the screw rod is connected to the inner wall of the limiting column, and the external thread of the screw rod is connected to the inner wall of the fixing block.

[0013] Furthermore, the inner side wall of the clamping jaw contacts the outer side wall of the clamping block, and the outer portion of the screw rod is slidably connected to the inner side wall of the clamping block.

[0014] Furthermore, the top end of the rubber pad is in contact with the bottom end of the cylinder head, and the bottom end of the screw rod is rotatably connected to the top end of the chassis.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the mutual cooperation of the column shell, the top block, the knob, the screw rod, the clamping claw and other structures, the cylinder head assembly and the engine are effectively and strongly fixed, ensuring the sealing of the cylinder head assembly and the engine, which is very important for preventing the leakage of coolant and oil, thereby preventing the engine from overheating and damage, and achieving the purpose of prolonging the service life of the equipment.

[0017] 2. In the utility model, the base, spring, top plate, fiber, rubber pad and other structures cooperate with each other to reduce the force transmitted from the vibration of the engine during operation to the cylinder head assembly, thereby reducing noise. At the same time, the spring can provide a certain elasticity when the temperature changes to compensate for the temperature changes caused by the engine operation, thereby improving the comfort of the driver or passengers and preventing the problem of looseness or over-tightening due to temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a cylinder head assembly for an automobile engine proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the column shell structure of a cylinder head assembly for an automobile engine proposed by the utility model;

[0020] Figure 3 A schematic diagram of the limit column structure of a cylinder head assembly for an automobile engine proposed by the utility model

[0021] Figure 4 for Figure 3 A in the enlarged view;

[0022] Figure 5 for Figure 3 The enlarged view of point B in the figure;

[0023] Figure 6 The utility model is a schematic diagram of the top plate structure of a cylinder head assembly for an automobile engine.

[0024] Legend:

[0025] 1. Cylinder head; 2. Column shell; 3. Top block; 4. Knob; 5. Screw; 6. Column ring; 7. Fixed block; 8. Limit column; 9. Chassis; 10. Clamping claw; 11. Groove; 12. Clamping block; 13. Base; 14. Slide; 15. Spring; 16. Top plate; 17. Limit block; 18. Rubber pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-2The utility model provides an embodiment: a cylinder head assembly for an automobile engine, including a cylinder head 1, a plurality of column shells 2 are slidably connected to the top of the cylinder head 1, the column shells 2 here are inserted into a plurality of holes outside the cylinder head 1, and play a role in fixing the cylinder head 1 and the engine, a top block 3 is fixedly connected to the top of the column shell 2, and a screw rod 5 is threadedly connected to the inner wall of the top block 3, and the top block 3 here is used to limit the movement of the screw rod 5 so that it maintains a straight line up and down translation motion.

[0028] Reference Figure 3-4 The top of the screw rod 5 is fixedly connected with a knob 4, and the knob 4 here can drive the screw rod 5 thereunder to rotate when it is rotated. The external top of the column shell 2 is threadedly connected with a column ring 6, and the top of the inner wall of the column shell 2 is fixedly connected with a fixed block 7. The fixed block 7 here is also used to limit the moving range of the screw rod 5, so that it can move in a straight line to ensure its stability. The external thread of the screw rod 5 is connected to the inner wall of the fixed block 7, and the middle part of the inner wall of the column shell 2 is fixedly connected with a limiting column 8.

[0029] Reference Figure 3 and Figure 5 The limiting column 8 here can further limit the moving range of the screw rod 5 and make it more stable. The external thread of the screw rod 5 is connected to the inner wall of the limiting column 8. The bottom end of the inner wall of the column shell 2 is slidably connected with the chassis 9. The bottom end of the screw rod 5 is rotatably connected to the top of the chassis 9. When the screw rod 5 here rotates, it will drive the chassis 9 below it to rise. The four sides of the top of the chassis 9 are rotatably connected with clamps 10. When the chassis 9 here rises, it will drive the clamps 10 to rise together.

[0030] Reference Figure 5 The outer wall of the clamping jaw 10 is slidably connected to the bottom end of the inner wall of the column shell 2, and grooves 11 are provided on the four sides of the bottom end of the column shell 2. The four sides of the bottom end of the inner wall of the column shell 2 are fixedly connected with clamping blocks 12. The clamping jaw 10 here will rise after contacting the bottom end of the clamping block 12, and the clamping jaw 10 will extend toward the groove 11. The outside of the screw rod 5 is slidably connected to the inner wall of the clamping block 12, and the inner wall of the clamping jaw 10 is in contact with the outer wall of the clamping block 12. The outer bottom ends of multiple column shells 2 are slidably connected with buffer components. The buffer components here are used to buffer the force of the cylinder head 1 and the engine during vibration, and at the same time reduce the noise they are exposed to.

[0031] Reference Figure 6 The buffer assembly includes a base 13, a slide groove 14 is provided inside the base 13, and a plurality of springs 15 are arranged inside the slide groove 14. The springs 15 here further reduce the vibration force it is subjected to when the engine is running. The inner wall of the slide groove 14 is slidably connected to a top plate 16, one end of the spring 15 is fixedly connected to one side of the inner wall of the slide groove 14, and the other end of the spring 15 is fixedly connected to one side of the top plate 16.

[0032] Reference Figure 1 and Figure 6 The slide groove 14 and the top plate 16 here are used to support the spring 15 to make it more stable during operation. The outsides of the multiple column shells 2 are slidably connected to the inner wall of the top plate 16, and the outside of the top plate 16 is slidably connected to the inner wall of the slide groove 14. The outside of the top plate 16 is fixedly connected to the limit block 17. The limit block 17 here is used to limit the movement range of the top plate 16 so that it will not leave the range of the slide groove 14. The top of the top plate 16 is fixedly connected with a rubber pad 18. The rubber pad 18 here is used to further reduce the vibration force it is subjected to and reduce the generation of noise. The outsides of the multiple column shells 2 are slidably connected to the inner wall of the rubber pad 18, and the top of the rubber pad 18 contacts the bottom end of the cylinder head 1.

[0033] Working principle: When installing the cylinder head, the staff can first cover the cylinder head 1 here on the engine, and then insert the column shell 2 into the multiple small holes around the cylinder head 1, and then turn the knob 4, the knob 4 will drive the screw rod 5 below to rotate, the top block 3, the fixed block 7 and the limit column 8 here are to ensure that the screw rod 5 performs linear translation during rotation, that is, to ensure its stability during movement, and then the screw rod 5 will drive the chassis 9 at its bottom to rise.

[0034] At this time, the clamping claw 10 will slowly contact the clamping block 12, and under the action of the slope of the clamping block 12, it will slowly expand outward from the groove 11, and wait until the chassis 9 contacts the bottom end of the clamping block 12, that is, moves to a large distance. At this time, the column ring 6 can be screwed, and the column ring 6 will slowly move down on the column shell 2 until it contacts the hole in the cylinder head 1, and then tighten it. When the engine is running, it usually generates a lot of noise and a strong vibration, and the buffer component here can solve this problem.

[0035] When the cylinder head 1 and the engine squeeze the rubber pad 18 and the base 13, the top plate 16 will slide on the inner wall of the slide groove 14, and at the same time compress the spring 15. The spring 15 will accumulate elastic potential energy and emit a reaction force outward, which will offset the force of external squeezing, thereby achieving the purpose of reducing vibration. At the same time, because of the existence of the rubber pad 18, it can greatly reduce the collision between the cylinder head 1 and the engine during operation, reduce the generation of noise, and improve people's comfort. The main function of the limit block 17 here is to limit the maximum range of movement of the top plate 16 so that it will not leave the range of the slide groove 14 when it rebounds.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder head assembly for an automobile engine, comprising a cylinder head (1), characterized in that: The top of the cylinder head (1) is externally slidably connected to a plurality of column shells (2), the top of the column shell (2) is fixedly connected to a top block (3), the inner wall of the top block (3) is threadedly connected to a screw rod (5), the top of the screw rod (5) is fixedly connected to a knob (4), the top of the outer top of the column shell (2) is threadedly connected to a column ring (6), the top of the inner wall of the column shell (2) is fixedly connected to a fixed block (7), the middle of the inner wall of the column shell (2) is fixedly connected to a limiting column (8), the bottom of the inner wall of the column shell (2) is slidably connected to a chassis (9), the top four sides of the chassis (9) are rotatably connected to clamping claws (10), the bottom four sides of the bottom of the column shell (2) are provided with grooves (11), the bottom four sides of the inner wall of the column shell (2) are fixedly connected to clamping blocks (12), and the outer bottoms of the plurality of column shells (2) are slidably connected to buffer components.

2. The cylinder head assembly for an automobile engine according to claim 1, characterized in that: The buffer assembly comprises a base (13), a slide groove (14) is provided inside the base (13), a plurality of springs (15) are arranged inside the slide groove (14), an inner wall of the slide groove (14) is slidably connected to a top plate (16), an outer portion of the top plate (16) is fixedly connected to a limiting block (17), and a top end of the top plate (16) is fixedly connected to a rubber pad (18).

3. The cylinder head assembly for an automobile engine according to claim 2, characterized in that: One end of the spring (15) is fixedly connected to one side of the inner wall of the slide groove (14), and the other end of the spring (15) is fixedly connected to one side of the top plate (16).

4. The cylinder head assembly for an automobile engine according to claim 2, characterized in that: The outside of the top plate (16) is slidably connected to the inner wall of the slide groove (14), and the outer side wall of the clamping jaw (10) is slidably connected to the bottom end of the inner wall of the column shell (2).

5. The cylinder head assembly for an automobile engine according to claim 2, characterized in that: The exteriors of the plurality of column shells (2) are all slidably connected to the inner wall of the top plate (16), and the exteriors of the plurality of column shells (2) are all slidably connected to the inner wall of the rubber pad (18).

6. The cylinder head assembly for an automobile engine according to claim 1, characterized in that: The external thread of the screw rod (5) is connected to the inner wall of the limiting column (8), and the external thread of the screw rod (5) is connected to the inner wall of the fixing block (7).

7. The cylinder head assembly for an automobile engine according to claim 1, characterized in that: The inner side wall of the clamping jaw (10) contacts the outer side wall of the clamping block (12), and the outer portion of the screw rod (5) is slidably connected to the inner side wall of the clamping block (12).

8. The cylinder head assembly for an automobile engine according to claim 2, characterized in that: The top end of the rubber pad (18) contacts the bottom end of the cylinder head (1), and the bottom end of the screw rod (5) is rotatably connected to the top end of the chassis (9).

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