Cylinder head flange sealing ring

Abstract

The utility model relates to a cylinder head flange sealing ring, which relates to the technical field of cylinder sealing, and comprises a sealing ring body, a clamping piece and a positioning piece, the sealing ring body is installed between the combination surfaces of the air cylinder body and the air cylinder cover, the clamping piece is installed on the sealing ring body and used for firmly installing the sealing ring body, the sealing ring body and the clamping piece are integrally formed, and the positioning piece is installed on the sealing ring body and used for positioning when the sealing ring body is installed. The mounting structure has the effect of improving the mounting stability of the sealing ring.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cylinder sealing, in particular to a cylinder head flange sealing ring. BACKGROUND

[0002] The cylinder head sealing gasket is located between the cylinder head and the cylinder block, and functions to fill the micro pores between the cylinder block and the cylinder head, so as to ensure good sealing performance of the joint surface. The sealing performance between the cylinder head and the cylinder block is crucial for the normal operation of the engine. Good sealing can effectively prevent the leakage of liquid and gas, and avoid the entry of external engine oil and other contaminants into the cylinder chamber, thereby ensuring the purity of the fuel.

[0003] At present, the installation of the general cylinder head flange sealing ring is performed by embedding the sealing ring into the sealing plane with a groove of the cylinder block to seal, and fixing the sealing ring in the groove, so as to ensure the close contact between the sealing ring and the cylinder block, and realize the sealing effect.

[0004] However, under the working condition of high load, the sealing ring embedded in the groove is prone to displacement during long-term use, resulting in unstable sealing effect. CONTENT OF THE INVENTION

[0005] In order to increase the installation stability of the sealing ring and further improve the sealing effect, the application provides a cylinder head flange sealing ring.

[0006] The cylinder head flange sealing ring provided by the application adopts the following technical scheme:

[0007] The cylinder head flange sealing ring comprises:

[0008] A sealing ring body is installed between the joint surface of the cylinder block and the cylinder head.

[0009] A clamping member is installed on the sealing ring body, and the clamping member is used to firmly install the sealing ring body.

[0010] A positioning member is installed on the sealing ring body, and the positioning member is used to position the sealing ring body during installation.

[0011] By adopting the above technical scheme, the clamping member provides fastening force for the installation of the sealing ring body. Under the complex working conditions of vibration, high temperature and high pressure generated by the engine under high load, the clamping member can effectively prevent the displacement of the sealing ring body, and ensure the normal operation of the engine. The positioning member can help the operator to place the sealing ring body at the correct position of the joint surface of the cylinder block and the cylinder head, simplify the installation process, and improve the installation efficiency.

[0012] Optionally, the clamping pieces are clamping protrusions, and a plurality of the clamping protrusions are fixedly installed on the sealing ring body and uniformly arranged.

[0013] By adopting the above technical scheme, the clamping protrusions enable the sealing ring body to be more firmly installed between the cylinder body and the cylinder cover joint surface, form a certain interference fit, effectively prevent loosening caused by vibration or pressure change, thereby improving the sealing performance, preventing leakage of liquid and gas, and improving the installation reliability.

[0014] Optionally, the positioning piece is a positioning ear ring, the positioning ear ring is fixedly installed on the sealing ring body, and a through hole is formed in the positioning ear ring.

[0015] By adopting the above technical scheme, the positioning ear ring enables the sealing ring body to be accurately positioned during installation, avoids position deviation caused by manual installation error, and further causes poor sealing problems, and meanwhile, the through hole in the positioning ear ring facilitates cooperation and installation with other components, improves the assembly efficiency, the fixed connection of the positioning ear ring and the sealing ring body enhances the structural stability, and further improves the sealing performance.

[0016] Optionally, the longitudinal cross section of the sealing ring body is octagonal.

[0017] By adopting the above technical scheme, when the pressure generated by the engine operation acts on the sealing ring body, since there is no sharp corner on the sealing ring body, the stress is more uniformly distributed on the sealing ring body, the sealing ring body is not easily clamped by the sharp corner during installation, the success rate and convenience of installation are improved, and the harsh requirement for installation accuracy is reduced.

[0018] Optionally, the sealing ring body and the clamping piece are integrally formed.

[0019] By adopting the above technical scheme, the integrally formed sealing ring body and clamping piece form a closely connected whole structure, which can effectively prevent loosening and separation between the clamping piece and the sealing ring body during engine operation, especially under complex working conditions such as vibration, high temperature and high pressure caused by high load, ensures that the sealing ring body remains firmly installed between the cylinder body and the cylinder cover joint surface, and maintains good sealing effect.

[0020] Optionally, a quick release post is fixedly installed on the sealing ring body, and the quick release post is used for quickly disassembling the sealing ring body.

[0021] By adopting the technical scheme, the quick lifting column provides a special force point for dismounting the sealing ring body, when the sealing ring body needs to be dismounted, the operator only needs to exert a suitable external force on the quick lifting column, and the sealing ring body is quickly separated from the cylinder body and the cylinder cover by pulling and prying the quick lifting column, without the need to perform complicated operations such as searching for a force point and trying different dismounting angles, so that the dismounting process is simplified.

[0022] Optionally, the material of the sealing ring body is an elastic material.

[0023] By adopting the technical scheme, the elastic material has good elasticity and recovery, so that the sealing ring body can be tightly fitted into the groove of the air cylinder body during installation, and no matter how irregular the size and shape of the groove are, the sealing ring body can be elastically deformed after being subjected to a certain pressure, and is tightly fitted in the groove. The tight fit not only reduces the risk of leakage, but also improves the sealing efficiency and durability of the sealing ring body.

[0024] Optionally, the elastic material is rubber.

[0025] By adopting the technical scheme, the rubber material can effectively improve the elasticity and durability of the sealing ring body, enhance the sealing performance, and at the same time, the rubber material has good chemical stability and anti-aging ability, can maintain the sealing effect for a long time in harsh environment, prolong the service life, further ensure the sealing between the cylinder cover and the cylinder barrel, prevent the leakage of liquid and gas, and prevent the entry of external engine oil and other pollutants into the cylinder chamber, ensure the purity of fuel, and thus ensure the normal operation of the engine.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The sealing ring body is tightly fitted with the cylinder body and the cylinder cover, and through the action of the clamping piece, the sealing ring body is firmly installed, effectively preventing the leakage of liquid and gas, and improving the sealing reliability;

[0028] 2. The positioning piece is arranged to accurately align the position of the sealing ring body during installation, avoid sealing failure due to improper installation, simplify the installation process, and improve the work efficiency;

[0029] 3. The sealing ring body made of elastic material can adapt to different temperature and pressure conditions, maintain stable sealing performance, and prolong the service life of the sealing ring body. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structure schematic view of the cylinder head flange sealing ring of the embodiment of the present application;

[0031] Figure 2 is a sectional view of the cylinder head flange sealing ring of the embodiment of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, sealing ring body; 2, clamping part; 21, clamping protrusion; 3, positioning part; 31, positioning ear ring; 311, through hole; 4, quick starting column. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0037] The following will be described in detail in combination with the drawings Figures 1-2 The application will be further described in detail.

[0038] The utility model discloses a cylinder head flange sealing ring.

[0039] Reference Figure 1 And Figure 2The cylinder head flange sealing ring comprises a sealing ring body 1, a clamping part 2 and a positioning part 3. The sealing ring body 1 is installed between the cylinder body and the cylinder cover joint surface, the clamping part 2 is installed on the sealing ring body 1, the clamping part 2 is used for firm installation of the sealing ring body 1, the sealing ring body 1 and the clamping part 2 are integrally formed, and the positioning part 3 is installed on the sealing ring body 1, and the positioning part 3 is used for positioning when the sealing ring body 1 is installed.

[0040] In use, the sealing ring body 1 is taken near the cylinder body and the cylinder cover joint surface, the positioning part 3 is used for positioning operation, the sealing ring body 1 can be accurately placed on the correct position of the cylinder body and the cylinder cover joint surface, the sealing ring body 1 is embedded into the corresponding groove of the cylinder body, the clamping part 2 is pressed and fitted with the groove, additional fastening force is provided for the sealing ring body 1, displacement or looseness of the sealing ring body 1 is prevented during installation, and firm installation of the sealing ring body 1 between the cylinder body and the cylinder cover joint surface is ensured.

[0041] Referring to Figure 2 , the shape of the sealing ring body 1 corresponds to the groove shape of the cylinder body, the longitudinal cross section of the sealing ring body 1 is octagonal, the four right angles of the rectangular cross section are all provided with chamfers, the material of the sealing ring body 1 is an elastic material, and in the embodiment, the elastic material is rubber.

[0042] In use, since there is no sharp corner on the sealing ring body 1, the sealing ring body 1 is embedded into the groove of the cylinder body more labor-saving, and the sealing ring body 1 is not easy to be damaged, the installation convenience is improved, meanwhile, the chamfer transition can make the stress more evenly distributed on the sealing ring body 1, and the early cracking or damage of the sealing ring body 1 due to stress concentration is avoided.

[0043] Referring to Figure 1 and Figure 2 , the positioning part 3 is a positioning ear ring 31, two positioning ear rings 31 are arranged, the two positioning ear rings 31 are fixedly installed on the sealing ring body 1, and a through hole 311 is arranged on the positioning ear ring 31.

[0044] In use, the through hole 311 on one positioning ear ring 31 is aligned with the positioning pin or positioning hole structure prearranged on the cylinder body and is preliminarily fixed, the position of the sealing ring body 1 is continuously adjusted, another positioning ear ring 31 can also be accurately aligned with the corresponding positioning pin or positioning hole, the positioning of the sealing ring body 1 is realized, the position deviation of the sealing ring body 1 due to manual installation error is effectively avoided, and the installation precision is improved.

[0045] Referring to Figure 1 and Figure 2, the clamping part 2 is a clamping protrusion 21, the clamping protrusion 21 is composed of a cylinder and two symmetrical circular cone bodies, and a plurality of clamping protrusions 21 are fixedly installed on the sealing ring body 1 and uniformly arranged.

[0046] In use, with the insertion of the sealing ring body 1, the clamping protrusion 21 begins to contact the groove wall surface of the cylinder body, extrusion and friction occur between the clamping protrusion 21 and the groove wall surface, a certain interference fit is formed, the loosening of the sealing ring body 1 caused by vibration or pressure change is effectively prevented, and the stability of the sealing is improved.

[0047] Referring to Figure 1 , the sealing ring body 1 is fixedly installed with a quick lifting column 4, when the sealing ring body 1 needs to be disassembled, the quick lifting column 4 is pulled or pried, an external force is applied to the quick lifting column 4, so that the sealing ring body 1 can be quickly separated from the installation position, it is not necessary to find a prying point in the sealing ring body 1 or the groove of the cylinder body, and damage to the sealing ring body 1 is prevented.

[0048] The implementation principle of the cylinder head flange sealing ring in the embodiment of the application is as follows: the sealing ring body 1 is installed on the joint surface of the cylinder body and the cylinder cover, the shape of the sealing ring body 1 corresponds to the shape of the groove on the cylinder body, the longitudinal cross section is octagonal, the four right angles of the rectangular cross section are chamfered, and the sealing ring body 1 is made of elastic rubber material. The clamping protrusion 21 of the clamping part 2 is composed of a cylinder and two symmetrical conical bodies and is uniformly and spacedly distributed on the sealing ring body 1, so as to ensure the stability of the sealing ring during the operation of the cylinder. The two positioning lugs 31 of the positioning part 3 are fixed on the sealing ring body 1 and have through holes 311, and during installation, the through holes 311 are matched with the positioning structure on the cylinder to realize the accurate positioning of the sealing ring body 1 and assist in maintaining the position stability of the sealing ring body 1 during the operation of the cylinder.

[0049] In addition, the quick lifting column 4 on the sealing ring body 1 is used for quick disassembly and facilitates maintenance and replacement. During the operation of the cylinder, the sealing ring body 1 fills the micro pores by virtue of its elasticity, adapts to changes in working conditions such as pressure, temperature and vibration, maintains the sealing effect, prevents liquid and gas leakage and the entry of pollutants, and ensures the normal operation of the equipment.

[0050] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A cylinder head flange seal ring, characterized in that The utility model relates to a sealing ring body (1) is installed between the cylinder block and the cylinder cover joint surface, and the utility model relates to a clamping part (2) is installed on the sealing ring body (1), and the clamping part (2) is used for making the sealing ring body (1) firm installation, and the utility model relates to a positioning part (3) is installed on the sealing ring body (1), and the positioning part (3) is used for installing the sealing ring body (1) and positioning. The clamping part (2) is clamping protrusion (21), be provided with a plurality of clamping protrusion (21), a plurality of clamping protrusion (21) fixed mounting on the sealing ring body (1) and interval uniform setting. The positioning part (3) is positioning ear ring (31), positioning ear ring (31) fixed mounting is on the sealing ring body (1), and the positioning ear ring (31) is set with through -hole (311) on it. The longitudinal cross section of the sealing ring body (1) is octagonal.

2. The cylinder head flange seal ring of claim 1, wherein, The sealing ring body (1) is integrally formed with the clamping part (2).

3. The cylinder head flange seal ring of claim 1, wherein, The sealing ring body (1) is fixedly installed with a quick lifting column (4), which is used for quickly disassembling the sealing ring body (1).

4. The cylinder head flange seal ring of claim 1, wherein, The material of the sealing ring body (1) is elastic material.

5. The cylinder head flange seal ring of claim 2, wherein, The elastic material is rubber.

6. The cylinder head flange seal ring of claim 1, wherein, ​ 7. The cylinder head flange seal ring of claim 1, wherein ​ 8. The cylinder head flange seal ring of claim 7, wherein, ​

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