Oil leakage prevention structure of cylinder head with self-compensating sealing groove

Abstract

The utility model provides a kind of air cylinder head leak-proof structure with self-compensation sealing groove, it is related to air cylinder head technical field, including fixed subassembly, fixed subassembly includes the connecting plate connected in the side surface of connecting ring, the bottom of connecting ring is connected with first connecting pipe, the side surface of connecting plate is connected with fixed ring, the bottom of fixed ring is connected with sleeve, the bottom of sleeve is provided with lug, by being provided with connecting plate, to be able to provide support to sleeve, by being provided with sleeve, to be able to cooperate lug and realize the quick connection and disassembly of connecting ring and protective shell, subsequent maintenance is facilitated to seal element, by being provided with first connecting pipe, to be able to provide mounting space for seal element while protecting the internal parts of air cylinder body, ensure that seal element can work stably.

Description

Technical Field

[0001] This utility model relates to the field of cylinder head technology, and in particular to a cylinder head oil leakage prevention structure with a self-compensating sealing groove. Background Technology

[0002] Cylinder head oil leakage prevention structures are commonly used in internal combustion engines of automobiles, motorcycles, and construction machinery. Their function is to prevent oil leakage from the mating surface between the cylinder head and the cylinder block through seals and structural designs, such as sealing grooves and protrusions, ensuring the oil passage of the lubrication system is sealed, maintaining the oil level, and avoiding insufficient lubrication, component wear, and environmental pollution caused by oil leakage.

[0003] In practical applications, existing cylinder head oil leakage prevention structures, using a combination of metal gaskets and bolt fastening components, can meet the basic requirement of preventing oil leakage. However, the following problems still exist:

[0004] Common cylinder head oil leak prevention structures typically use fixed-size sealing gaskets to seal the engine oil. However, during actual use, when the engine is running, the cylinder head and cylinder block expand and contract due to temperature differences, causing the sealing groove to be subjected to periodic compression and tension, affecting the sealing effect. Furthermore, the disassembly process is cumbersome when replacement is needed. Therefore, this application provides a cylinder head oil leak prevention structure with a self-compensating sealing groove to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a cylinder head oil leakage prevention structure with a self-compensating sealing groove.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a cylinder head oil leakage prevention structure with a self-compensating sealing groove, comprising a protective shell and a connecting ring disposed on the top of the protective shell, and further comprising:

[0007] A fixing assembly includes a connecting plate connected to the side of a connecting ring, a first connecting tube connected to the bottom of the connecting ring, a fixing ring connected to the side of the connecting plate, a sleeve connected to the bottom of the fixing ring, and a protrusion provided at the bottom of the sleeve.

[0008] An adjustment assembly, the adjustment assembly including a mounting base disposed within the cavity of the protective housing.

[0009] Furthermore, the outer surface of the sleeve is provided with a sliding groove, and the outer surface of the connecting ring is provided with a first snap-fit ​​groove.

[0010] The technical effect of adopting the above technical solution is that by opening the groove, the connecting ring and the protective shell can be engaged with the protrusion. By opening the first engagement groove, the sealing ball can be squeezed and filled with the protrusion, ensuring stable sealing.

[0011] Furthermore, a second connecting pipe is connected to the top of the protective shell.

[0012] The technical effect of adopting the above technical solution is that by setting a second connecting pipe, it is possible to connect with the first connecting pipe.

[0013] Furthermore, a second snap-fit ​​groove is provided on the outer surface of the second connecting tube.

[0014] The technical effect of adopting the above technical solution is that by opening a second snap-fit ​​groove, a deformation space can be provided for the sealing ball.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] By setting a connecting plate, the sleeve can be supported. By setting a sleeve, the connecting ring and the protective shell can be quickly connected and disassembled in conjunction with the protrusion, which facilitates subsequent maintenance of the seal. By setting a first connecting pipe, the internal parts of the cylinder body can be protected while providing installation space for the seal, ensuring that the seal can work stably. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a cylinder head oil leakage prevention structure with a self-compensating sealing groove provided by this utility model;

[0018] Figure 2 A schematic diagram of the internal connection structure of a cylinder head oil leakage prevention structure with a self-compensating sealing groove provided by this utility model;

[0019] Figure 3 A schematic diagram showing the disassembled structure of a cylinder head oil leakage prevention and fixing assembly with a self-compensating sealing groove provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the internal connection structure of a cylinder head oil leakage prevention structure fixing assembly with a self-compensating sealing groove provided by this utility model.

[0021] Legend:

[0022] 1. Protective shell; 11. Connecting ring;

[0023] 2. Fixing component; 21. Connecting plate; 22. Fixing ring; 23. Sleeve; 24. Slide groove; 25. First connecting pipe; 26. First snap-fit ​​groove; 27. Second connecting pipe; 28. Second snap-fit ​​groove; 29. ​​Protrusion; 3. Adjusting component; 31. Mounting base; 32. Spring; 33. Touch plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a cylinder head oil leakage prevention structure with a self-compensating sealing groove, including a protective shell 1 and a connecting ring 11 disposed on the top of the protective shell 1, and further including:

[0026] The fixing component 2 includes a connecting plate 21 connected to the side of the connecting ring 11, a first connecting tube 25 connected to the bottom of the connecting ring 11, a fixing ring 22 connected to the side of the connecting plate 21, a sleeve 23 connected to the bottom of the fixing ring 22, and a protrusion 29 provided at the bottom of the sleeve 23.

[0027] Adjustment component 3 includes a mounting base 31 disposed within the inner cavity of the protective shell 1, a groove 24 formed on the outer surface of the sleeve 23, a first engaging groove 26 formed on the outer surface of the connecting ring 11, and a second connecting pipe 27 connected to the top of the protective shell 1. The outer surface of the second connecting pipe 27 has a second engaging groove 28. In use, the sealing ball is first inserted into the inner cavity of the second engaging groove 28, and then the connecting ring 11 is manually pressed downwards. This causes the connecting plate 21 to move the fixing ring 22 and the sleeve 23 downwards. The fixing ring 22, fixedly connected to the bottom of the connecting plate 21, facilitates handheld operation. When the sleeve 23 moves to a certain position, the top of the protrusion 29 enters the inner cavity of the groove 24, causing the connecting plate 21 to rotate the first connecting pipe 25 clockwise. During the rotation of the first connecting pipe 25, the sealing ball is squeezed into the second engaging groove 28. The inner cavity is filled with the first connecting tube 25, which can deform and fill the inner cavity of the second locking groove 28. When the first connecting tube 25 moves to a certain position, the first locking groove 26 and the second locking groove 28 are engaged, the sealing ball releases stress and expands, thus completing the filling and sealing work. The first locking groove 26 and the second locking groove 28 cooperate to limit the position of the sealing ball. At the same time as the sealing work is completed, the protrusion 29 and the inner cavity of the slide groove 24 are engaged, which facilitates the connection of the connecting ring 11 with other workpieces and facilitates the operation of the cylinder head. When the sealing ball needs to be replaced after the work is completed, the contact plate 33 is pressed down by manual and mechanical means, and then the fixing ring 22 is rotated counterclockwise, which causes the connecting ring 11 to drive the first connecting tube 25 to release the engagement with the protective shell 1, and then the sealing ball in the inner cavity of the second locking groove 28 can be taken out, which effectively improves the replacement efficiency.

[0028] Furthermore, such as Figure 2 and Figure 3 As shown: The top of the mounting base 31 is connected to a spring piece 32, and the bottom of the mounting base 31 is fixedly connected to the bottom of the inner cavity of the protective shell 1. The top of the spring piece 32 is connected to a touch plate 33. By fixing the mounting base 31 to the inner cavity of the protective shell 1, support can be provided for the spring piece 32 and the touch plate 33. Through the cooperation of the spring piece 32 and the touch plate 33, when the sleeve 23 moves to a certain position, an upward reverse stress can be applied to assist the protrusion 29 in engaging with the inner cavity of the slide groove 24, ensuring engagement stability. During use, when vibration occurs, the spring piece 32 can absorb a certain vibration stress to ensure that the sealing ball does not deform excessively.

[0029] Working principle:

[0030] like Figure 1-4 As shown:

[0031] In use: First, insert the sealing ball into the inner cavity of the second locking groove 28. Then, manually press the connecting ring 11 downwards, which causes the connecting plate 21 to move the fixing ring 22 and the sleeve 23 downwards. When the sleeve 23 moves to a certain position, the top of the protrusion 29 enters the inner cavity of the sliding groove 24, which causes the connecting plate 21 to rotate the first connecting tube 25 clockwise. During the rotation of the first connecting tube 25, the sealing ball is squeezed into the inner cavity of the second locking groove 28, thus deforming and filling the inner cavity of the second locking groove 28. When the first connecting tube 25 moves to a certain position, the first locking groove 26 aligns with the second locking groove 28, the sealing ball releases stress, and expands, thus completing the filling and sealing work. At the same time as the sealing work is completed, the protrusion 29 and the sliding groove 24... Once the inner cavity is engaged, the bottom of the sleeve 23 applies downward stress to the top of the contact plate 33, thereby compressing the spring 32. Through the cooperation of the spring 32 and the mounting base 31, the protrusion 29 and the slide groove 24 are engaged, ensuring connection stability. When vibration occurs during use, the vibration is transmitted to the spring 32 through the mounting base 31. The flexible material of the spring 32 can absorb the vibration to a certain extent, helping to improve the stability of the sealing groove and avoid leakage. Similarly, when disassembly is required, the contact plate 33 is pressed down from the opening of the slide groove 24 by manual and mechanical means, and then the connecting plate 21 is rotated counterclockwise by hand, thereby causing the connecting ring 11 to disengage from the protective shell 1, and then the sealing ball set in the inner cavity of the second engagement groove 28 can be replaced.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cylinder head oil leakage prevention structure with a self-compensating sealing groove, comprising a protective shell (1) and a connecting ring (11) disposed on the top of the protective shell (1), characterized in that, Also includes: The fixing component (2) includes a connecting plate (21) connected to the side of the connecting ring (11), a first connecting pipe (25) connected to the bottom of the connecting ring (11), a fixing ring (22) connected to the side of the connecting plate (21), a sleeve (23) connected to the bottom of the fixing ring (22), and a protrusion (29) provided at the bottom of the sleeve (23). Adjustment assembly (3), the adjustment assembly (3) includes a mounting base (31) disposed in the inner cavity of the protective shell (1).

2. The cylinder head oil leakage prevention structure with self-compensating sealing groove according to claim 1, characterized in that, The outer surface of the sleeve (23) is provided with a sliding groove (24), and the outer surface of the connecting ring (11) is provided with a first snap-fit ​​groove (26).

3. The cylinder head oil leakage prevention structure with self-compensating sealing groove according to claim 1, characterized in that, The top of the protective shell (1) is connected to a second connecting pipe (27).

4. The cylinder head oil leakage prevention structure with self-compensating sealing groove according to claim 3, characterized in that, The outer surface of the second connecting pipe (27) is provided with a second snap-fit ​​groove (28).

5. The cylinder head oil leakage prevention structure with self-compensating sealing groove according to claim 1, characterized in that, The top of the mounting base (31) is connected to a spring piece (32), and the bottom of the mounting base (31) is fixedly connected to the bottom of the inner cavity of the protective shell (1).

6. The cylinder head oil leakage prevention structure with self-compensating sealing groove according to claim 5, characterized in that, The top of the spring (32) is connected to a touch plate (33).

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