Fastening type thin-wall hemispherical end socket
The design of the sleeve and disassembly mechanism solves the problem of cumbersome disassembly and assembly of the semi-circular end cap, achieving convenient disassembly and assembly and high sealing performance, and improving the ease of operation and connection strength.
Patent Information
- Application Number
- CN202520293098.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The existing semi-circular end caps are welded to the cylinder, which makes disassembly and assembly cumbersome and prone to damage, affecting the convenience of operation.
The design incorporates a sleeve and disassembly mechanism, utilizing the combination of arc grooves and arc blocks to achieve rapid disassembly and assembly of the end caps. Combined with sealing rings and anti-slip blocks, it improves connection sealing and operational comfort.
It enables convenient disassembly and assembly of the end cap, improves sealing performance and ease of operation, and enhances the connection strength between the end cap and the cylinder, as well as user comfort.
Smart Images

Figure CN223782062U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hemispherical end cap technology, and more specifically, to a snap-fit thin-walled hemispherical end cap. Background Technology
[0002] An end cap is a component used to seal the end of a container, isolating it from the internal and external media. Also known as an end cap, it is connected to the container body by welding and is a part of the container. According to the shape of its surface, end caps can be classified as convex, conical, flat, and combined types. A convex end cap refers to an end cap with a convex outer surface, such as hemispherical, elliptical, butterfly-shaped, and spherical end caps without folded edges.
[0003] With the development of technology, semi-circular heads have been widely used in many industries such as petrochemicals, nuclear energy, food and pharmaceuticals, energy, and aerospace due to their superior mechanical properties, strong pressure resistance, good sealing performance, and good corrosion resistance. However, existing semi-circular heads are often connected to the cylinder by welding. Although this connection method has good sealing performance, the connection process is relatively cumbersome. In addition, during the use of the head, it is often bumped and damaged, requiring disassembly and replacement. Since the head is connected to the cylinder by welding, the disassembly and assembly of the head is relatively complicated, which brings inconvenience to the operators. Therefore, it is necessary to improve the method. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a snap-fit thin-walled hemispherical end cap, which has the advantage of being easy to disassemble and assemble.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a snap-fit thin-walled hemispherical end cap, comprising:
[0006] A sleeve, wherein a cylindrical body is threaded into the inner part of the sleeve, and a sliding groove and an arc groove are respectively opened on the outer surface of the sleeve, and a vertical groove is opened inside the sliding groove;
[0007] A disassembly and assembly mechanism is disposed on the outer surface of the sleeve;
[0008] The disassembly and assembly mechanism includes a fixed plate, the outer surface of which is fixedly connected to the outer surface of the sleeve. A vertical rod is fixedly installed at the top of the fixed plate. A moving plate is movably sleeved on the outer surface of the vertical rod. An arc-shaped plate is fixedly installed on the outer surface of the moving plate. The outer surface of the arc-shaped plate is slidably connected to the inside of the groove. A vertical block is fixedly installed on the outer surface of the arc-shaped plate. The outer surface of the vertical block is slidably connected to the inside of the vertical groove. A head body is movably connected to the outer surface of the vertical block. An arc-shaped block is fixedly installed inside the head body. The outer surface of the arc-shaped block is slidably connected to the inside of the arc-shaped groove.
[0009] As a preferred embodiment of this utility model, a spring is fixedly installed at the top of the fixed plate, the inside of the spring is movably connected to the outer surface of the vertical rod, and the top of the spring is fixedly connected to the bottom of the moving plate.
[0010] As a preferred embodiment of this utility model, the top end of the sleeve is provided with an annular groove, and a sealing ring is movably fitted inside the annular groove. The top end of the sealing ring is fixedly connected to the inside of the end cap body.
[0011] As a preferred embodiment of this utility model, the bottom end of the sealing ring abuts against a gasket, and the outer surface of the gasket is fixedly sleeved with the inside of the annular groove.
[0012] As a preferred embodiment of this utility model, a handle is fixedly installed at the top of the end cap body, and an anti-slip block is fixedly sleeved inside the handle.
[0013] As a preferred embodiment of this utility model, the handle is made of high-strength alloy steel, and the anti-slip block is made of rubber.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This snap-fit thin-walled hemispherical end cap, due to the design of the arc groove, when the arc block is located inside the arc groove, it will block the overall movement of the end cap body. When the arc block is located inside the arc groove and contacts the arc plate, the arc plate will cooperate with the arc groove to lock the end cap body through the arc block, thereby facilitating the assembly of the end cap body. When the arc plate is released from the arc block, the arc block can rotate from inside the arc groove to inside the slide groove. When the arc plate is reset upward under the elastic force of the spring, the arc plate will squeeze the arc block, thereby causing the end cap body to pop out from the sleeve, thereby facilitating the disassembly of the end cap body.
[0016] 2. This snap-fit thin-walled hemispherical end cap, due to the design of the annular groove and sealing ring, can ensure the sealing performance when the sleeve is connected to the end cap body. Due to the design of the gasket, the sealing effect between the sleeve and the end cap body can be further improved. Due to the anti-slip block design, the operator can hold the handle more comfortably and improve the friction of the outer surface of the handle. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is a cross-sectional view of the arc-shaped block of this utility model;
[0020] Figure 4 This is a schematic diagram of the vertical groove structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the sealing ring of this utility model;
[0022] Figure 6 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0023] In the diagram: 1. Sleeve; 2. Slide groove; 3. Arc groove; 4. Vertical groove; 5. Fixing plate; 6. Vertical rod; 7. Moving plate; 8. Arc plate; 9. Vertical block; 10. Head body; 11. Arc block; 12. Spring; 13. Annular groove; 14. Sealing ring; 15. Gasket; 16. Cylinder; 17. Handle; 18. Anti-slip block. 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 Figures 1 to 6 As shown, this utility model provides a snap-fit thin-walled hemispherical end cap, comprising:
[0026] Sleeve 1, sleeve 1 has a cylinder 16 threaded inside sleeve 1, and a sliding groove 2 and an arc groove 3 are respectively opened on the outer surface of sleeve 1, and a vertical groove 4 is opened inside the sliding groove 2.
[0027] The disassembly and assembly mechanism is located on the outer surface of sleeve 1;
[0028] The disassembly and assembly mechanism includes a fixed plate 5, the outer surface of which is fixedly connected to the outer surface of the sleeve 1. A vertical rod 6 is fixedly installed at the top of the fixed plate 5. A moving plate 7 is movably sleeved on the outer surface of the vertical rod 6. An arc-shaped plate 8 is fixedly installed on the outer surface of the moving plate 7. The outer surface of the arc-shaped plate 8 is slidably connected to the inside of the slide groove 2. A vertical block 9 is fixedly installed on the outer surface of the arc-shaped plate 8. The outer surface of the vertical block 9 is slidably connected to the inside of the vertical groove 4. A head body 10 is movably connected to the outer surface of the vertical block 9. An arc-shaped block 11 is fixedly installed inside the head body 10. The outer surface of the arc-shaped block 11 is slidably connected to the inside of the arc-shaped groove 3.
[0029] When the end cap body 10 moves the arc-shaped block 11 downward along the inside of the slide groove 2, it will squeeze the arc-shaped plate 8, causing the arc-shaped plate 8 to move the moving plate 7 downward along the outer surface of the vertical rod 6. When the arc-shaped block 11 is aligned with the arc-shaped groove 3, the operator can turn the handle 17 to make the end cap body 10 move the arc-shaped block 11 into the inside of the arc-shaped groove 3. When the arc-shaped block 11 has completely moved into the inside of the arc-shaped groove 3, the arc-shaped groove 3 will be able to block the movement of the end cap body 10 through the arc-shaped block 11. When the arc-shaped plate 8 moves upward, the arc-shaped plate 8 will contact the arc-shaped block 11 again. At this time, the arc-shaped plate 8 will cooperate with the arc-shaped groove 3 to lock the arc-shaped block 11, thereby completing the installation of the end cap body 10 and the sleeve 1 as a whole.
[0030] Among them, a spring 12 is fixedly installed on the top of the fixed plate 5, the inside of the spring 12 is movably connected to the outer surface of the vertical rod 6, and the top of the spring 12 is fixedly connected to the bottom of the moving plate 7.
[0031] When the moving plate 7 moves downward, it will compress the spring 12. Due to the design of the spring 12, the moving plate 7 will be able to achieve a good restoring effect.
[0032] The sleeve 1 has an annular groove 13 at its top end, and a sealing ring 14 is movably fitted inside the annular groove 13. The top end of the sealing ring 14 is fixedly connected to the inside of the end cap body 10.
[0033] When the end cap body 10 and the sleeve 1 are assembled, the sealing ring 14 will be located inside the annular groove 13. Due to the design of the sealing ring 14 and the annular groove 13, the sealing performance of the end cap body 10 and the sleeve 1 as a whole can be guaranteed.
[0034] The bottom end of the sealing ring 14 abuts against the gasket 15, and the outer surface of the gasket 15 is fixedly sleeved with the inside of the annular groove 13.
[0035] Due to the design of the gasket 15, the sealing performance of the connection between the sleeve 1 and the end cap body 10 can be further improved.
[0036] The top of the end cap body 10 is fixedly installed with a handle 17, and an anti-slip block 18 is fixedly sleeved inside the handle 17.
[0037] The design of the handle 17 and the anti-slip block 18 makes it easy for operators to turn the end cap body 10.
[0038] The handle 17 is made of high-strength alloy steel, and the anti-slip block 18 is made of rubber.
[0039] Because the handle 17 is made of high-strength alloy steel, the structural strength of the handle 17 can be guaranteed. Because the anti-slip block 18 is made of rubber, it will make it more comfortable for the operator to hold the handle 17 and enhance the friction of the outer surface of the handle 17.
[0040] Working principle and usage process of this utility model:
[0041] When the operator needs to install the end cap body 10, the operator first screws the sleeve 1 all the way to the outer surface of the cylinder 16. When the sleeve 1 is connected to the cylinder 16, the operator holds the handle 17 and places the end cap body 10 on the top of the sleeve 1. Then the operator presses the handle 17, causing the end cap body 10 to move downward. At this time, the arc block 11 will move downward along the inside of the slide groove 2 under the action of the end cap body 10. At this time, the arc block 11 will squeeze and push the top of the arc plate 8, causing the arc plate 8 to drive the vertical block 9 to move downward along the inside of the slide groove 2 and the vertical groove 4. At the same time, the arc plate 8 will drive the moving plate 7 to move downward along the outer surface of the vertical rod 6. During this process, the moving plate 7 will compress the spring 12. When the arc block 11 is aligned with the arc groove 3 during the downward movement, the operator screws the handle 17. At this time, the end cap body 10... The handle 17 will rotate, and then the arc block 11 will rotate into the arc groove 3 under the drive of the head body 10. When the arc block 11 is completely in contact with the inside of the arc groove 3, the moving plate 7 will move upward under the drive of the spring 12 to reset due to the elastic force of the spring 12. At the same time, the arc plate 8 will move upward under the drive of the moving plate 7 to reset. At this time, the outer surface of the arc plate 8 will re-contact the arc block 11 and lock the movement of the arc block 11, thereby facilitating the installation of the head body 10. When the head body 10 and the sleeve 1 are assembled, the sealing ring 14 will be fitted into the inside of the annular groove 13. Due to the design of the sealing ring 14 and the annular groove 13, the sealing between the head body 10 and the sleeve 1 and the cylinder 16 can be guaranteed. Due to the design of the gasket 15, the sealing effect between the head body 10 and the sleeve 1 and the cylinder 16 can be further improved.
[0042] When the operator needs to disassemble the end cap body 10, the operator first presses the moving plate 7, causing the moving plate 7 to drive the arc plate 8 to move downward along the inside of the slide groove 2. When the outer surface of the arc plate 8 is no longer in contact with the arc block 11, the arc plate 8 will no longer be able to block the movement of the moving plate 7. At this time, the operator turns the handle 17 in the opposite direction. When the handle 17 drives the arc block 11 to move completely out of the inside of the arc groove 3 through the end cap body 10, the operator releases the two moving plates 7. Due to the elastic force of the spring 12, the two moving plates 7 will move upward under the action of the spring 12 to reset. During this process, the two moving plates 7 will squeeze and push the end cap body 10, causing the end cap body 10 to pop out from the sleeve 1, thereby facilitating the disassembly of the end cap body 10 and realizing the function of facilitating the assembly and disassembly of the end cap body 10.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A snap-fit thin-walled hemispherical end cap, characterized in that, Including: A sleeve (1) is threaded inside the sleeve (1) and a cylinder (16) is provided on the outer surface of the sleeve (1). A sliding groove (2) and an arc groove (3) are respectively provided on the outer surface of the sleeve (1). A vertical groove (4) is provided inside the sliding groove (2). The disassembly and assembly mechanism is disposed on the outer surface of the sleeve (1); The disassembly and assembly mechanism includes a fixed plate (5), the outer surface of the fixed plate (5) is fixedly connected to the outer surface of the sleeve (1), a vertical rod (6) is fixedly installed at the top of the fixed plate (5), a moving plate (7) is movably sleeved on the outer surface of the vertical rod (6), an arc plate (8) is fixedly installed on the outer surface of the moving plate (7), the outer surface of the arc plate (8) is slidably connected to the inside of the slide groove (2), a vertical block (9) is fixedly installed on the outer surface of the arc plate (8), the outer surface of the vertical block (9) is slidably connected to the inside of the vertical groove (4), a head body (10) is movably connected on the outer surface of the vertical block (9), an arc block (11) is fixedly installed inside the head body (10), and the outer surface of the arc block (11) is slidably connected to the inside of the arc groove (3).
2. The snap-fit thin-walled hemispherical end cap according to claim 1, characterized in that: A spring (12) is fixedly installed at the top of the fixed plate (5). The inside of the spring (12) is movably connected to the outer surface of the vertical rod (6). The top of the spring (12) is fixedly connected to the bottom of the moving plate (7).
3. The snap-fit thin-walled hemispherical end cap according to claim 1, characterized in that: The top end of the sleeve (1) is provided with an annular groove (13), and a sealing ring (14) is movably sleeved inside the annular groove (13). The top end of the sealing ring (14) is fixedly connected to the inside of the end cap body (10).
4. A snap-fit thin-walled hemispherical end cap according to claim 3, characterized in that: The bottom end of the sealing ring (14) abuts against a gasket (15), and the outer surface of the gasket (15) is fixedly sleeved with the inside of the annular groove (13).
5. A snap-fit thin-walled hemispherical end cap according to claim 1, characterized in that: A handle (17) is fixedly installed at the top of the end cap body (10), and an anti-slip block (18) is fixedly sleeved inside the handle (17).
6. A snap-fit thin-walled hemispherical end cap according to claim 5, characterized in that: The handle (17) is made of high-strength alloy steel, and the anti-slip block (18) is made of rubber.