Protective device for automobile engine cylinder cover

Abstract

According to the technical scheme, the automobile engine cylinder cover protection device is characterized by comprising a main plate and an installation plate, an installation cavity is formed in the center of the main plate, a first installation frame and a second installation frame are arranged on the two sides of the installation cavity respectively, and the two ends of the installation plate are detachably installed on the first installation frame and the second installation frame respectively. A through hole is formed in the mounting plate; and a plurality of mounting platforms with different heights are arranged on the first mounting frame, and the protection device can be assembled according to the types of cylinder covers, so that a targeted protection effect is provided.

Description

Technical Field

[0001] The utility model relates to an automobile repair tool, more specifically, it relates to a protective device for a cylinder cover of an automobile engine. Background Art

[0002] The cylinder head is installed on the cylinder body, sealing the cylinder from the top and forming a combustion chamber. It is often in contact with high-temperature and high-pressure fuel gas, so it bears a large thermal and mechanical load.

[0003] For automobile engine cylinder heads, once the chips (i.e. aluminum chips) fall into the cylinder head waterway, it is difficult to clean them out 100%. The common operation method in the industry is: first use a cleaning machine to clean, then beat the cylinder head, and then use an endoscope to detect 100% of the waterway. If there are still aluminum chips that are not cleaned out, not beaten out, and not found by the endoscope during the whole process, the aluminum chips will remain in the cylinder head waterway. If there are aluminum chips in the cylinder head waterway and they are not discovered in time, it is easy to cause serious consequences.

[0004] At present, a Chinese patent with announcement number CN217648016U discloses a protective device for automobile engine cylinder head processing, which can prevent aluminum chips generated during the processing of the cylinder head seat ring and the bottom hole of the guide tube from falling into the cylinder head water channel by setting a chip guard plate and a side protective shielding plate. However, the cylinder heads of different automobiles may be different in design and manufacturing, which depends on many factors, such as engine type, displacement, power, fuel type (gasoline or diesel) and specific requirements of automobile manufacturers.

[0005] Therefore, a single protective baffle cannot play an effective baffle role for various cylinder heads. In order to improve the applicability of the baffle, the structure of the baffle needs to be optimized. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a protective device for a cylinder head of an automobile engine, which can be assembled according to the type of cylinder head, thereby providing targeted protective effects.

[0007] To achieve the above object, the utility model provides the following technical solutions: a protective device for a cylinder head of an automobile engine, comprising a main board and a mounting plate, wherein a mounting cavity is provided at the center of the main board, a first mounting frame and a second mounting frame are provided at both sides of the mounting cavity, and both ends of the mounting plate are detachably mounted on the first mounting frame and the second mounting frame, respectively, and a through hole is provided on the mounting plate;

[0008] The first mounting frame is provided with a plurality of mounting platforms of different heights.

[0009] In summary, the utility model has the following beneficial effects: 1. Under normal circumstances, the main board and the cylinder head are adapted to each other in overall size, and by installing different mounting plates, cylinder heads of different structures can be adapted.

[0010] 2. Install one end of the mounting plate on mounting platforms of different heights so that the lower end of the mounting plate is inclined so that the device can be covered on the cylinder head.

[0011] 3. By matching main boards of different sizes with mounting plates of different shapes, it can adapt to most cylinder heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the first side of the protective device;

[0013] Figure 2 is a schematic diagram of the three-dimensional structure of the second side of the protective device;

[0014] Figure 3 Schematic diagram of the three-dimensional structure of the mainboard;

[0015] Figure 4 It is a structural schematic diagram of the first mounting bracket position.

[0016] Figure numerals: 1. Main board; 11. Mounting cavity; 12. First screw hole; 13. Handle; 14. Second screw hole; 15. Positioning pin; 16. Return spring; 17. Adjustment hole; 18. Adjustment pin; 2. Mounting plate; 21. Through hole; 22. Center plate; 23. Hinge plate; 3. First mounting frame; 31. Mounting platform; 32. Fixed bottom plate; 33. Moving plate; 34. Adjustment rod; 35. Limiting ring; 4. Second mounting frame; 5. First sliding groove; 6. Second sliding groove; 7. Side baffle. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0018] Reference Figures 1 to 4As shown, in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle engine cylinder head protection device, comprising a main board 1 and a mounting plate 2, a mounting cavity 11 is arranged at the center of the main board 1, a first mounting frame 3 and a second mounting frame 4 are arranged on both sides of the mounting cavity 11, two ends of the mounting plate 2 are detachably mounted on the first mounting frame 3 and the second mounting frame 4, and a through hole 21 is opened on the mounting plate 2; the through hole is used for corresponding to the combustion chamber.

[0019] The first mounting frame 3 is provided with a plurality of mounting platforms 31 of different heights.

[0020] The design of the utility model: 1. Under normal circumstances, the main board 1 is adapted to the overall size of the cylinder head, and by installing different mounting plates 2, it can be adapted to cylinder heads of different structures.

[0021] 2. Most cylinder heads are flat, but some cylinder heads may adopt non-flat designs due to some special applications or high-performance engines. For example, the cylinder heads of some engines may adopt a convex shape to increase the volume of the combustion chamber or change the shape of the combustion chamber to optimize the combustion process and improve engine performance. In addition, some engines using complex valve mechanisms or variable valve timing technology may also require a non-flat cylinder head design. Therefore, in order to ensure that the protective device can be placed stably, one end of the mounting plate 2 is mounted on a mounting platform 31 of different heights, so that the lower end of the mounting plate 2 is inclined, so that the device can be covered on the cylinder head.

[0022] In addition, a mounting plate with a curved lower end can be designed separately so as to better fit the convex surface of the cylinder head.

[0023] 3. By matching main boards 1 of different sizes with mounting plates 2 of different shapes, it can be adapted to most cylinder heads.

[0024] The mounting plate 2 includes a center plate 22 and hinge plates 23 . The hinge plates 23 are provided in two groups and are respectively arranged at both ends of the center plate 22 . The center plate 22 is respectively mounted on the first mounting frame 3 and the second mounting frame 4 through the hinge plates 23 .

[0025] The design of this structure can be installed on different installation platforms 31 through a mounting plate 2 to form an inclined surface.

[0026] There are many installation methods: 1. Different installation plates 2 have different lengths of the center plate 22, so when they can be installed on different installation platforms 31, the connection holes on the hinged plate 23 can correspond to the connection holes on the installation platform 31, and finally fastened by bolts.

[0027] 2. The extension lengths of the installation platforms 31 at different heights are different. When the center plate 22 remains unchanged, the installation platform 31 can be installed accordingly due to its large extension length.

[0028] The first surface of the mainboard 1 is provided with first screw holes 12 at four corners, and a handle 13 is detachably installed in the first screw hole 12. The design of this structure can install the handle 13 at the corresponding position according to the habits and needs of the operator, which plays a role in facilitating operation. It can also reduce the space occupied by the device when it is placed.

[0029] The second surface of the mainboard 1 is provided with limiting members, and two groups of limiting members are provided and are respectively installed at the opposite corners of the mainboard 1 .

[0030] The limiting member includes a plurality of sets of second screw holes 14 and positioning pins 15, and the positioning pins 15 are detachably installed in the second screw holes 14. The design of the structure, such as Figure 2 As shown, the second screw holes 14 are provided in multiple groups and are located at different positions, so as to correspond to the positioning holes of cylinder heads of different models.

[0031] The first mounting frame 3 and the second mounting frame 4 both include a fixed bottom plate 32 , and the two fixed bottom plates 32 are located on the same horizontal plane.

[0032] The first mounting frame 3 also includes a plurality of movable plates 33, and the movable plates 33 are arranged along the thickness direction of the main board 1;

[0033] The plurality of movable plates 33 are all slidably connected to the main board 1 .

[0034] The main board 1 is provided with a plurality of sliding grooves for the movable plate 33 to slide and connect, and the sliding grooves are provided with return springs 16;

[0035] The main board 1 is provided with a plurality of adjustment holes 17 connected with the sliding grooves, and the adjustment pins 18 are screwed into the adjustment holes 17 . The movable plate 33 is provided with an adjustment rod 34 extending into the adjustment holes 17 .

[0036] The sliding groove at least includes a first sliding groove 5 and a second sliding groove 6 . The first sliding groove 5 is located above the second sliding groove 6 . The sliding stroke of the movable plate 33 in the first sliding groove 5 is greater than the sliding stroke in the second sliding groove 6 . A limiting ring 35 is provided on the movable plate 33 .

[0037] like Figure 4 As shown, with the design of this structure, when the movable plate 33 is retracted into the sliding groove, the mounting plate 2 can be connected to the fixed bottom plates 32 on both sides respectively, so as not to be hindered by the movable plate 33 above.

[0038] When it is necessary to adjust the lower end inclined surface, the adjusting pin 18 is rotated by a screwdriver to make the adjusting pin 18 slide in the adjusting hole 17, thereby pushing the movable plate 33 to move, so that the movable plate 33 extends out, and the extending amount of the movable plate 33 in the second sliding groove 6 is greater than the length of the fixed bottom plate 32, and the extending amount of the movable plate 33 in the first sliding groove 5 is greater than the extending amount of the movable plate 33 in the second sliding groove 6, so that even if the overall length of the mounting plate 2 is not changed, it can be installed on different mounting platforms 31.

[0039] And due to the design of the limit ring 35, the size of the limit ring 35 is smaller than the size of the sliding groove, and larger than the size of the opening of the main board 1 (the opening of the main board 1 is connected to the sliding groove). Therefore, when the adjustment pin 18 rotates, the limit ring 35 abuts against the inner wall of the main board 1, thereby achieving the effect of stroke limiting.

[0040] Furthermore, the design of the return spring 16 can assist the moving plate 33 in moving back.

[0041] Side baffles 7 are provided on both sides of the main board 1. Through the design of the side baffles 7 and the main board 1, the water channel holes on the cylinder head can be shielded, and even if the cylinder surface is not flat, the water channel holes can be fully or partially shielded, which can prevent aluminum chips generated when processing the seat ring and the bottom hole of the guide tube of the cylinder head from falling into the water channel of the cylinder head.

[0042] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A protective device for a cylinder head of an automobile engine, characterized in that: The invention comprises a main board (1) and a mounting plate (2); a mounting cavity (11) is arranged at the center of the main board (1); a first mounting frame (3) and a second mounting frame (4) are arranged on both sides of the mounting cavity (11); two ends of the mounting plate (2) are detachably mounted on the first mounting frame (3) and the second mounting frame (4); and a through hole (21) is opened on the mounting plate (2); The first mounting frame (3) is provided with a plurality of mounting platforms (31) of different heights.

2. The automobile engine cylinder head protection device according to claim 1 is characterized in that: The mounting plate (2) comprises a central plate (22) and a hinge plate (23). The hinge plates (23) are provided in two groups and are respectively arranged at two ends of the central plate (22). The central plate (22) is respectively mounted on a first mounting frame (3) and a second mounting frame (4) via the hinge plates (23).

3. The automobile engine cylinder head protection device according to claim 1 is characterized in that: First screw holes (12) are provided at four corners of the first surface of the main board (1), and a handle (13) is detachably mounted in the first screw hole (12).

4. The automobile engine cylinder head protection device according to claim 1 is characterized in that: A limiting member is arranged on the second surface of the main board (1), and two groups of the limiting members are arranged and are respectively installed at the opposite corners of the main board (1).

5. The automobile engine cylinder head protection device according to claim 4 is characterized in that: The limiting member comprises a plurality of groups of second screw holes (14) and positioning pins (15), and the positioning pins (15) are detachably installed in the second screw holes (14).

6. A vehicle engine cylinder head protection device according to any one of claims 1 to 5, characterized in that: The first mounting frame (3) and the second mounting frame (4) both include a fixed base plate (32), and the two fixed base plates (32) are located on the same horizontal plane.

7. The automobile engine cylinder head protection device according to claim 6 is characterized in that: The first mounting frame (3) further comprises a plurality of groups of movable plates (33), wherein the movable plates (33) are arranged along the thickness direction of the main board (1); The plurality of groups of movable plates (33) are all slidably connected to the main plate (1).

8. The automobile engine cylinder head protection device according to claim 7 is characterized in that: The main board (1) is provided with a plurality of groups of sliding grooves for sliding connection of the moving plate (33), and the sliding grooves are each provided with a return spring (16); The main board (1) is provided with a plurality of adjustment holes (17) connected to the sliding grooves, the adjustment holes (17) are screwed with adjustment pins (18), and the movable plate (33) is provided with an adjustment rod (34) extending into the adjustment hole (17).

9. The automobile engine cylinder head protection device according to claim 8, characterized in that: The sliding groove at least comprises a first sliding groove (5) and a second sliding groove (6); the first sliding groove (5) is located above the second sliding groove (6); the sliding stroke of the movable plate (33) in the first sliding groove (5) is greater than the sliding stroke in the second sliding groove (6); and a limit ring (35) is provided on the movable plate (33).

10. The automobile engine cylinder head protection device according to claim 1, characterized in that: Side baffles (7) are provided on both sides of the main board (1).

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