End face O-shaped sealing ring groove structure

Abstract

The utility model discloses an end face O-shaped sealing ring groove structure, and relates to the technical field of mechanical equipment manufacturing. According to the end face O-shaped sealing ring groove structure, a groove is formed in an installation plane, and the groove is used for clamping and fixing an O-shaped sealing ring; the groove comprises an inner side wall surface, an outer side wall surface, a groove bottom wall surface, an inner side angle and an outer side angle; the section of the inner side wall surface is arc-shaped; the section of the outer side wall surface is linear; the section of the groove bottom wall surface is linear; the inner side corners are respectively connected with the inner side wall surface and the groove bottom wall surface; and the outer side corners are respectively connected with the outer side wall surface and the groove bottom wall surface. According to the utility model, the problems that the O-shaped sealing ring is inconvenient to install and the sealing performance is unstable are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment manufacturing technical field, concretely relates to a kind of end face O-shaped sealing ring groove structure. BACKGROUND

[0002] In the field of mechanical seal, end face sealing structure plays a key role in ensuring the reliable operation of various mechanical equipment. End face O-shaped sealing ring groove is an important component in such sealing system.

[0003] Currently, most of the existing end face sealing ring grooves are rectangular grooves. When installing O-shaped sealing rings into these rectangular grooves, some problems often occur. First, during the installation process, the O-shaped sealing ring is prone to falling off and shifting. The planar straight wall structure of the rectangular groove has relatively small constraints on the O-shaped sealing ring during installation. Workers need to be extra careful during installation, and in some cases, special tools are needed to try to accurately position the O-shaped sealing ring, which greatly increases the installation difficulty and time cost.

[0004] Secondly, the problem of O-shaped sealing ring falling off and shifting during installation can lead to a decrease or even failure of the sealing performance of the O-shaped sealing ring. Once the O-shaped sealing ring is not correctly installed in the groove, gaps or uneven contact may occur between the O-shaped sealing ring and the groove wall as well as the mating surface. This can cause fluid or gas leakage, which is unacceptable in many applications that require high sealing precision, such as aerospace, automotive, and hydraulic systems.

[0005] In view of the above problems in the prior art, it is urgent to develop an end face O-shaped sealing ring groove structure to facilitate the installation of O-shaped sealing rings and ensure their stable sealing performance. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is the problem of inconvenient installation of O-shaped sealing rings and unstable sealing performance of existing sealing ring grooves. The purpose is to provide an end face O-shaped sealing ring groove structure that solves the problem of inconvenient installation of O-shaped sealing rings and unstable sealing performance.

[0007] The utility model is implemented by the following technical solutions:

[0008] An end face O-shaped sealing ring groove structure has a recess in the installation plane, and the recess is used to clamp and fix the O-shaped sealing ring.

[0009] The recess includes an inner side wall, an outer side wall, a groove bottom wall, an inner side angle, and an outer side angle.

[0010] The inner side wall is arc-shaped in cross-section.

[0011] The outer side wall is straight in cross-section.

[0012] The groove bottom wall surface is straight line in section;

[0013] The inner side angle is connected with the inner side wall surface and the groove bottom wall surface respectively;

[0014] The outer side angle is connected with the outer side wall surface and the groove bottom wall surface respectively.

[0015] As a possible design, the above-mentioned inner side wall surface, outer side wall surface, groove bottom wall surface, inner side angle and outer side angle constitute a trapezoid, and the groove bottom wall surface is a long side bottom surface.

[0016] As a possible design, the above-mentioned inner side wall surface is wavy in section.

[0017] As a possible design, the end of the above-mentioned inner side wall surface away from the groove bottom wall surface is arc-shaped and protrudes outward to the side of the outer side wall surface.

[0018] As a possible design, the above-mentioned inner side wall surface is obliquely arranged, and the end of the inner side wall surface away from the groove bottom wall surface is obliquely arranged to the outer side wall surface.

[0019] As a possible design, the oblique angle of the above-mentioned inner side wall surface is 5-30°.

[0020] As a possible design, the above-mentioned inner side angle is a circular arc angle.

[0021] As a possible design, the above-mentioned outer side angle is a right angle.

[0022] As a possible design, the angle of the above-mentioned outer side angle is less than 90°.

[0023] As a possible design, the angle of the above-mentioned outer side angle is 50-80°.

[0024] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0025] This invention employs a method of precisely embedding an O-ring into a specific groove. The inner wall of this groove has an arc-shaped cross-section, while the outer wall has a straight cross-section. When the O-ring is embedded in the groove, the arc-shaped structure of the inner wall creates a uniform and continuous compression effect on the inner wall of the O-ring. From a mechanical perspective, this compression causes elastic deformation of the inner wall of the O-ring, tightly adhering it to the inner wall of the groove, thus forming a tight contact between the O-ring and the groove, effectively preventing the O-ring from slipping out inward. Simultaneously, the straight structure of the outer wall provides stable support for the outer side of the O-ring, reducing the possibility of radial displacement. Through this design, the O-ring can maintain a stable position and shape in complex working environments, thereby ensuring its excellent sealing performance. This design effectively avoids leakage problems caused by changes in the O-ring's position or incomplete sealing, ensuring that the entire system can maintain stable sealing performance over a long period. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is one of the structural schematic diagrams of an end-face O-ring sealing groove structure according to the present invention, which is an annular O-ring sealing groove;

[0028] Figure 2 This is a cross-sectional structural diagram of an end-face O-ring sealing groove structure according to the present invention;

[0029] Figure 3 This is one of the structural schematic diagrams of an end-face O-ring sealing groove structure according to the present invention, which is an irregularly shaped O-ring sealing groove;

[0030] Figure 4 This is a cross-sectional view of the end-face O-ring groove structure of this utility model in use.

[0031] The attached diagram shows the markings and corresponding component names:

[0032] 1-Mounting surface;

[0033] 2-Groove; 21-Inner wall; 22-Outer wall; 23-Groove bottom wall; 24-Inner corner; 25-Outer corner;

[0034] 3-O-ring seal. Detailed Implementation

[0035] In order to make the purpose, technical scheme and advantages of the present application clearer, more apparent and more comprehensible, the present application will be further described in detail below in conjunction with embodiments and drawings. The schematic embodiments of the present application and the description thereof are only used to explain the present application, and should not be regarded as a limitation of the present application.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application.

[0037] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0040] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] Embodiments

[0042] The embodiment provides a structure of an end face O-shaped sealing ring groove, as shown in the drawings. Figures 1-4 The recess 2 is circular annular and is arranged in the mounting plane 1 in a recessed manner. The recess 2 is used for clamping and fixing the O-shaped sealing ring. The recess 2 comprises an inner side wall surface 21, an outer side wall surface 22, a groove bottom wall surface 23, an inner side corner 24 and an outer side corner 25. The cross section of the inner side wall surface 21 is arc-shaped, which can enhance the fitting degree with the sealing ring. Preferably, the arc-shaped opening is away from the sealing ring, which can form extrusion on the sealing ring and further prevent the sealing ring from being pulled out. The cross section of the outer side wall surface 22 is straight, which can prevent the sealing ring from being pulled out and improve the production convenience. The cross section of the groove bottom wall surface 23 is straight, and the two ends of the groove bottom wall surface 23 are fixedly connected with the inner side wall surface 21 and the outer side wall surface 22 to form the recess 2. The inner side corner 24 is connected with the inner side wall surface 21 and the groove bottom wall surface 23. The outer side corner 25 is connected with the outer side wall surface 22 and the groove bottom wall surface 23.

[0043] Preferably, the arc of the arc-shaped inner side wall surface 21 is different at the same height position along the long side direction, which can further improve the extrusion effect of the sealing ring.

[0044] In some embodiments, as shown in the drawings, Figures 1-2 The inner side wall surface 21, the outer side wall surface 22, the groove bottom wall surface 23, the inner side corner 24 and the outer side corner 25 form a trapezoid, and the groove bottom wall surface 23 is a long side bottom surface. The opening for accommodating the sealing ring is a short side. Such a structure can prevent the sealing ring from being pulled out.

[0045] In some embodiments, as shown in the drawings, Figures 1-4 The cross section of the inner side wall surface 21 is wave-shaped, which can form wave-shaped extrusion on the sealing ring and further prevent the sealing ring from being pulled out.

[0046] In some embodiments, as shown in the drawings, Figures 1-4 The arc-shaped protrusion of the end of the inner side wall surface 21 away from the groove bottom wall surface 23 is outwardly inclined to the outer side wall surface 22, which can form extrusion on the outermost layer of the sealing ring and further prevent the sealing ring from being pulled out.

[0047] In some embodiments, as shown in the drawings, Figures 1-4 The inner side wall surface 21 is inclined to be arranged, and the end of the inner side wall surface 21 away from the groove bottom wall surface 23 is inclined to be arranged to the outer side wall surface 22. The inner side wall surface 21 is inclined to be wave-shaped, and preferably is inclined to the outer side wall surface 22. The sealing ring can be further extruded to prevent the sealing ring from being pulled out, and the O-shaped sealing ring 3 is not easy to be damaged when being pressed.

[0048] In some embodiments, as shown in the drawings, Figures 1-4 The inclination angle of the inner side wall surface 21 is 5-30°, which can be 10°, 15°, 25° or any value.

[0049] In some embodiments, as shown in the drawings, Figures 1-4As shown, the above-mentioned inner side angle 24 is a circular arc angle, which is not easy to be damaged when the O-shaped sealing ring is pressed.

[0050] In some embodiments, as shown in Figures 1-4 As shown, the above-mentioned outer side angle 25 is a right angle, and the right angle O-shaped sealing ring groove section is easier to realize when the special-shaped profile is processed, thereby reducing the production cost and improving the production efficiency.

[0051] In some embodiments, as shown in Figures 1-4 As shown, the above-mentioned outer side angle 25 is less than 90°, and the acute outer side angle 25 can be pressed together with the inner side angle 24 to prevent the sealing ring from being taken out.

[0052] In some embodiments, as shown in Figures 1-4 As shown, the above-mentioned outer side angle 25 is 50-80°.

[0053] The above-mentioned specific embodiments further specifically explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above-mentioned is only the specific embodiment of the utility model, and is not used for limiting the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A structure of a groove of an end face O-ring, a recess (2) is formed in a mounting plane (1), characterized in that, The groove (2) is used for clamping and fixing the O-shaped sealing ring; The groove (2) comprises an inner side wall surface (21), an outer side wall surface (22), a groove bottom wall surface (23), an inner side corner (24) and an outer side corner (25); The inner side wall surface (21) is arc-shaped in cross section; The outer side wall surface (22) is linear in cross section; The groove bottom wall surface (23) is linear in cross section; The inner side corner (24) is connected with the inner side wall surface (21) and the groove bottom wall surface (23) respectively; The outer side corner (25) is connected with the outer side wall surface (22) and the groove bottom wall surface (23) respectively.

2. A groove structure for an end face O-ring seal according to claim 1, wherein The inner side wall surface (21), the outer side wall surface (22), the groove bottom wall surface (23), the inner side corner (24) and the outer side corner (25) form a trapezoid, and the groove bottom wall surface (23) is a long side bottom surface.

3. The groove structure for an end face O-ring seal of claim 1 wherein, The inner side wall surface (21) is wave-shaped in cross section.

4. A face seal O-ring groove structure according to claim 3 wherein, The arc-shaped protrusion of the end of the inner side wall surface (21) away from the groove bottom wall surface (23) is towards one side of the outer side wall surface (22).

5. A face seal O-ring groove structure according to claim 3 wherein, The inner side wall surface (21) is obliquely arranged, and the end of the inner side wall surface (21) away from the groove bottom wall surface (23) is obliquely arranged towards the outer side wall surface (22).

6. A face seal O-ring groove structure according to claim 5 wherein, The oblique angle of the inner side wall surface (21) is 5-30°.

7. A face seal O-ring groove structure as described in claim 1 wherein, The inner side corner (24) is a circular arc-shaped corner.

8. The end face O-ring groove structure of claim 1 wherein, The outer side corner (25) is a right angle.

9. The end face O-ring groove structure of claim 1 wherein, The angle of the outer side corner (25) is less than 90°.

10. A face seal O-ring groove structure according to claim 9, wherein, The angle of the outer side corner (25) is 50-80°.

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