End cover sealing structure

Abstract

The technical scheme of the utility model discloses an end cover sealing structure, which comprises an end cover and is characterized in that an end cover groove and an end cover O-shaped ring sealing groove are respectively arranged at the upper part and the lower part of the periphery of the end cover, and an O-shaped ring is sleeved in the end cover O-shaped ring sealing groove; the end cover is plugged into the steel pipe, and the steel pipe located in the groove of the end cover is buckled and pressed, so that double sealing of the end cover and the steel pipe is achieved. The end cover provided by the utility model is simple and reliable in structure, high in strength, small in required space size, and very convenient to process and assemble.

Description

Technical Field

[0001] This utility model relates to the field of cylinder end cap technology, and in particular to an end cap sealing structure. Background Technology

[0002] Traditional cylinder end caps typically employ welding, flange, or threaded connections. However, welded end caps have relatively weak fatigue strength; while flange and threaded structures are complex, cumbersome to manufacture and assemble, and require significant space. Utility Model Content

[0003] The technical problem solved by this utility model is that traditional end caps have weak fatigue strength, are troublesome to process and assemble, and require large space dimensions.

[0004] To solve the above-mentioned technical problems, the present invention provides an end cap sealing structure, including an end cap, wherein the upper and lower parts of the outer periphery of the end cap are respectively provided with an end cap groove and an end cap O-ring sealing groove, and an O-ring is fitted in the end cap O-ring sealing groove; by inserting the end cap into a steel pipe and pressing the steel pipe located at the end cap groove, a double seal between the end cap and the steel pipe is achieved.

[0005] Optionally, the maximum outer diameter of the O-ring is greater than the outer circumferential diameter of the end cap and greater than the inner diameter of the steel pipe.

[0006] Optionally, the depth of the end cap groove is the same as the depth of the end cap O-ring sealing groove.

[0007] Optionally, the end cap is also provided with an oil port.

[0008] Optionally, an end cap limiting step is also machined in the end cap groove.

[0009] Optionally, the end cap groove is machined with an end cap limiting step near the top of the end cap.

[0010] Optionally, the end cap groove is in the shape of an arc groove.

[0011] Optionally, the end cap O-ring sealing groove is rectangular in shape.

[0012] Optionally, the outer circumferential diameter of the bottom of the end cap is smaller than the inner diameter of the steel pipe.

[0013] Optionally, the maximum outer diameter of the end cap is equal to, less than, or greater than the inner diameter of the steel pipe.

[0014] The beneficial effects of this utility model's technical solution are:

[0015] The end cap structure of this utility model is simple, reliable, and has high strength. At the same time, it requires little space and is very convenient to process and assemble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the end cap sealing structure in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram showing the usage state of the end cap sealing structure in an embodiment of this utility model;

[0018] Figure 3 This is a cross-sectional view of the end cap in an embodiment of the present invention. Detailed implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] Please see Figure 1 and Figure 2 As shown, an embodiment of an end cap sealing structure is illustrated, including an end cap 1. The upper and lower parts of the outer periphery of the end cap 1 are respectively provided with an end cap groove 11 and an end cap O-ring sealing groove 12, and an O-ring 2 is fitted in the end cap O-ring sealing groove 12. By inserting the end cap 1 into the steel pipe 3 and pressing the steel pipe 3 located at the end cap groove 11, a double seal between the end cap 1 and the steel pipe 3 is achieved.

[0025] In this embodiment, the maximum outer diameter of the O-ring 2 is greater than the outer circumferential diameter of the end cap 1 and greater than the inner diameter of the steel pipe 3.

[0026] In this embodiment, the depth of the end cap groove 11 is the same as the depth of the end cap O-ring sealing groove 12.

[0027] In this embodiment, the end cap 1 is also provided with an oil port 13.

[0028] In this embodiment, as Figure 3 As shown, an end cap limiting step 14 is also machined in the end cap groove 11.

[0029] In this embodiment, the end cap groove 11 is machined with an end cap limiting step 14 near the top of the end cap 1.

[0030] In this embodiment, the end cap groove 11 is in the shape of an arc groove.

[0031] In this embodiment, the end cap O-ring sealing groove 12 is rectangular in shape.

[0032] In this embodiment, the outer circumferential diameter of the bottom of the end cap 1 is smaller than the inner diameter of the steel pipe 3.

[0033] In this embodiment, the maximum outer diameter of the end cap 1 is equal to, less than or greater than the inner diameter of the steel pipe 3.

[0034] The following description will further illustrate the characteristics and functions of this utility model.

[0035] This invention involves machining an end cap groove 11 and an end cap O-ring sealing groove 12 on the upper and lower parts of the outer periphery of the end cap 1, respectively. The machined end cap 1 is then inserted into the opening of the steel pipe 3. A clamping tool is used to press the steel pipe 3 into the end cap groove 11 of the end cap 1, causing the steel pipe 3 to deform and be inserted into the end cap groove 11, thus achieving a tight and firm contact and mutual sealing. At the same time, the end cap 1 and the steel pipe 3 are also sealed at the lower part by an O-ring 2, achieving a double seal with better sealing effect. Furthermore, the connection between the end cap 1 and the steel pipe 3 is strong, preventing loosening and leakage.

[0036] In summary, the end cap structure of this utility model is simple, reliable, and has high strength, while requiring minimal space and being very convenient to process and assemble.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An end cap sealing structure, comprising an end cap, characterized in that, The upper and lower parts of the outer periphery of the end cap are respectively provided with an end cap groove and an end cap O-ring sealing groove, and an O-ring is fitted in the end cap O-ring sealing groove; by inserting the end cap into the steel pipe and pressing the steel pipe located at the end cap groove, the end cap and the steel pipe are double sealed.

2. The end cap sealing structure according to claim 1, characterized in that, The maximum outer diameter of the O-ring is greater than the outer circumferential diameter of the end cap and greater than the inner diameter of the steel pipe.

3. The end cap sealing structure according to claim 2, characterized in that, The depth of the end cap groove is the same as the depth of the end cap O-ring sealing groove.

4. The end cap sealing structure according to claim 3, characterized in that, The end cap is also provided with an oil port.

5. The end cap sealing structure according to claim 4, characterized in that, The end cap groove is also machined with an end cap limiting step.

6. The end cap sealing structure according to claim 5, characterized in that, The end cap groove has an end cap limiting step machined near the top of the end cap.

7. The end cap sealing structure according to claim 6, characterized in that, The end cap groove is in the shape of an arc groove.

8. The end cap sealing structure according to claim 7, characterized in that, The end cap O-ring sealing groove is rectangular in shape.

9. The end cap sealing structure according to claim 8, characterized in that, The outer diameter of the bottom of the end cap is smaller than the inner diameter of the steel pipe.

10. The end cap sealing structure according to claim 9, characterized in that, The maximum outer diameter of the end cap is equal to, less than, or greater than the inner diameter of the steel pipe.

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