Quick-release large-diameter titanium plate seal head
The quick-release mechanism for end caps enables rapid disassembly and installation of titanium alloy end caps, solving the problem of cumbersome disassembly in existing technologies, improving maintenance and cleaning efficiency, and ensuring sealing performance and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING HUAWEI HEAD PLATE CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-07
AI Technical Summary
The existing titanium alloy end caps require multiple bolts and nuts to connect to the cylinder, making disassembly cumbersome and inconvenient for maintenance or cleaning.
The end cap quick-release mechanism is adopted, including end cap fastening support shaft, fastening connecting rod, quick-release support ring and fastening drive ring, which realizes quick disassembly and installation of end cap through motor drive.
It enables rapid disassembly and installation of the end caps, improves maintenance and cleaning efficiency, reduces labor costs, and ensures sealing performance and structural stability.
Smart Images

Figure CN224469935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe end cap technology, specifically a quick-release large-diameter titanium plate end cap. Background Technology
[0002] End caps, also known as covers or end caps, are important components in pressure vessels, boilers, storage tanks, and other equipment. They are primarily used to seal one end of a container, preventing leakage of the medium while simultaneously withstanding the pressure inside the container. End caps have wide applications in various industrial sectors, such as petrochemicals, energy, pharmaceuticals, and food processing.
[0003] Based on their structural form, heads can be classified into convex heads, conical heads, flat heads, and composite heads. Based on their geometric shape, they can be classified into spherical, elliptical, dished, spherical crown, conical shell, and flat cap heads, among which spherical, elliptical, dished, and spherical crown heads are collectively referred to as convex heads.
[0004] Most titanium alloy end caps on the market are fixed to the cylinder by bolts and nuts. When it is necessary to inspect or clean the main pipeline and the inside of the end cap, the fixing bolts and nuts need to be removed one by one before the main pipeline and the inside of the end cap can be inspected or cleaned. However, there are many bolts and nuts used to connect the titanium alloy end cap and the cylinder, which makes disassembly more troublesome and inconvenient for operators to inspect or clean the main pipeline and the inside of the end cap. Utility Model Content
[0005] The purpose of this utility model is to provide a quick-release large-diameter titanium plate end cap, which facilitates the quick disassembly and installation of the end cap, and makes it convenient for operators to inspect or clean the main pipeline and the inside of the end cap.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A quick-release large-diameter titanium plate end cap includes a main pipe and an end cap that is sealed to the end of the main pipe. The main pipe is provided with a quick-release mechanism for fastening the end cap.
[0008] The quick-release mechanism for the end cap includes multiple end cap fastening support shafts arranged parallel to the axis of the main pipeline. The ends of the end cap fastening support shafts are connected to fastening connecting rods via a first fixed hinge. The fastening connecting rods have snap-fit grooves on their sides.
[0009] A quick-release support ring, coaxially arranged with the main pipeline, is fixed to the outside of the end cap. A snap-fit connecting ring, coaxially arranged with the quick-release support ring, is fixed to the outside of the quick-release support ring. The snap-fit connecting ring is snapped into the snap-fit groove.
[0010] Preferably, a limiting support ring coaxial with the main pipeline is fixed on the outside of the main pipeline. The limiting support ring has multiple fastening connection holes that extend through the main pipeline along the direction parallel to the axis of the main pipeline. The end cap fastening support shaft is slidably connected in the fastening connection holes.
[0011] A fastening drive ring is rotatably connected to the outside of the main pipeline. The fastening drive ring has multiple fastening drive mating grooves on its outside. A fastening drive support block extending radially along the main pipeline is fixed on the end cap fastening support shaft. The fastening drive support block is slidably fitted in the fastening drive mating groove.
[0012] Explanation: Under the constraint of the fastening drive mating groove and the fastening mating roller, the fastening drive mating groove can drive the fastening drive support column together with the end cap fastening support shaft and the fastening connecting rod to move along the axial direction of the fastening connection hole, so that the snap-fit connecting ring and the snap-fit mating groove are tightened or relaxed, so as to realize the installation and removal of the end cap.
[0013] Preferably, a fastening driven gear ring is fixed to the outside of the fastening drive ring, a drive support seat is fixed to the outside of the main pipe, a gear drive shaft is rotatably connected to the drive support seat, a fastening drive gear is fixed to the gear drive shaft, and the fastening drive gear meshes with the fastening driven gear ring.
[0014] A fastening drive motor is fixed to the outside of the main pipeline, and the output shaft of the fastening drive motor is connected to the gear drive shaft through a coupling.
[0015] Explanation: The output shaft of the fastening drive motor drives the gear drive shaft to rotate through a coupling. The gear drive shaft then drives the fastening drive ring to rotate through the meshing connection between the fastening drive gear and the fastening driven gear ring. The gear transmission has good stability and effectively avoids slippage during the transmission process.
[0016] Preferably, a shielding and limiting ring is fixed to the outside of the fastening drive ring and arranged coaxially therewith. The shielding and limiting ring has multiple disassembly extension grooves that extend radially along the main pipe.
[0017] Multiple anti-loosening pressure strips extending around the inner side of the shielding and limiting ring are fixed.
[0018] Note: The anti-loosening pressure strip can press and support the fastening connecting rod on the side away from the main pipe, restricting the rotation of the fastening connecting rod around the first fixed hinge and preventing the fastening connecting rod from accidentally loosening.
[0019] Compared with the prior art, the beneficial effects of this utility model are reflected in the following aspects:
[0020] 1. The present invention has a reasonable structural design and a quick disassembly structure, which can quickly disassemble the end cap when it is necessary to inspect, maintain or replace parts inside the equipment, saving time and labor costs and improving work efficiency.
[0021] 2. This utility model is easy to operate and is designed for large-diameter pipes or containers. It can fit well with large-sized cylinders, ensuring sealing performance and structural stability. Moreover, even with a large diameter, it can still guarantee sufficient strength and rigidity to meet the needs of various industrial fields for large-diameter containers.
[0022] 3. This utility model has high safety and reliability. The sliding fit between the fastening drive support block and the fastening drive mating groove has a self-locking function, which effectively prevents the entire end cap from loosening. It can ensure the safe operation of the equipment under the design pressure and temperature conditions. Attached Figure Description
[0023] Figure 1 This is the front view of this utility model;
[0024] Figure 2 This is a structural schematic diagram of the quick-release mechanism for the end cap of this utility model;
[0025] Figure 3 This is a schematic diagram of the shielding and limiting ring of this utility model.
[0026] In the diagram, 10-main pipe, 11-end cap, 20-end quick-release mechanism, 21-end fastening support shaft, 211-first fixed hinge, 22-fastening connecting rod, 221-clamping groove, 23-quick release support ring, 231-clamping connecting ring, 24-limiting support ring, 241-fastening connecting hole, 25-fastening drive ring, 251-fastening drive groove, 252-fastening drive support block, 261-fastening driven gear ring, 262-drive support seat, 263-gear drive shaft, 264-fastening drive gear, 265-fastening drive motor, 27-shielding limit ring, 271-disassembly extension groove, 272-anti-loosening pressure strip. Detailed Implementation
[0027] The following is combined Figures 1-3 This utility model will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of their respective main views or structural schematic diagrams.
[0028] Example 1:
[0029] A quick-release large-diameter titanium plate end cap, such as Figure 1 As shown, it includes a main pipe 10 and a cap 11 sealed to the end of the main pipe 10. The main pipe 10 is provided with a quick-release mechanism 20 for fastening the cap 11 on the outside.
[0030] The quick-release mechanism for the end cap includes multiple end cap fastening support shafts 21 arranged parallel to the axis of the main pipe 10. The end of the end cap fastening support shaft 21 is connected to a fastening connecting rod 22 via a first fixed hinge 211. The fastening connecting rod 22 has a snap-fit groove 221 on its side.
[0031] A quick-release support ring 23, coaxially arranged with the main pipe 10, is fixed on the outside of the end cap 11. A snap-fit connecting ring 231, coaxially arranged with the quick-release support ring 23, is fixed on the outside of the quick-release support ring 23. The snap-fit connecting ring 231 is snapped into the snap-fit groove 221.
[0032] like Figure 2 As shown, a limiting support ring 24 coaxial with the main pipe 10 is fixed on the outside of the main pipe 10. The limiting support ring 24 has multiple fastening connection holes 241 that pass through the main pipe 10 along the direction parallel to the axis of the main pipe 10. The end cap fastening support shaft 21 is slidably connected in the fastening connection holes 241.
[0033] A fastening drive ring 25 is rotatably connected to the outside of the main pipe 10. The fastening drive ring 25 has multiple fastening drive mating grooves 251 on its outside. A fastening drive support block 252 extending radially along the main pipe 10 is fixed on the end cap fastening support shaft 21. The fastening drive support block 252 is slidably fitted in the fastening drive mating grooves 251.
[0034] Example 2:
[0035] Based on Example 1, such as Figure 2 As shown, a fastening driven gear ring 261 is fixed to the outside of the fastening drive ring 25, a drive support seat 262 is fixed to the outside of the main pipe 10, a gear drive shaft 263 is rotatably connected to the drive support seat 262, a fastening drive gear 264 is fixed to the gear drive shaft 263, and the fastening drive gear 264 meshes with the fastening driven gear ring 261.
[0036] A fastening drive motor 265 is fixed on the outside of the main pipe 10. The fastening drive motor 265 is a servo motor of the prior art. The output shaft of the fastening drive motor 265 is connected to the gear drive shaft 263 through a coupling.
[0037] Example 3:
[0038] Based on Example 2, such as Figure 2 , Figure 3 As shown, a shielding and limiting ring 27 is fixed on the outside of the fastening drive ring 25 and arranged coaxially therewith. The shielding and limiting ring 27 has a plurality of disassembly extension grooves 271 that run radially through the main pipe 10.
[0039] Multiple anti-loosening pressure strips 272 extending around the inner side of the shielding and limiting ring 27 are fixed thereon. The anti-loosening pressure strips 272 are made of aluminum alloy.
[0040] In practical application, the installation process of the end cap 11 is as follows: first, the end cap 11 is sealed and connected to the end of the main pipe 10, so that the quick-release support ring 23 is sleeved on the outside of the main pipe 10.
[0041] In the initial state, the fastening connecting rod 22 and the disassembly extension groove 271 are in the same radial plane of the main pipe 10, corresponding one-to-one. The fastening connecting rod 22 can deflect around the axis of the first fixed hinge 211. In the initial state, the fastening connecting rod 22 deflects around the axis of the first fixed hinge 211 away from the snap-fit connecting ring 231. After the quick-release support ring 23 is sleeved on the outside of the main pipe 10, the fastening connecting rod 22 deflects around the axis of the first fixed hinge 211 and approaches the snap-fit connecting ring 231, so that the snap-fit connecting ring 231 is snapped into the snap-fit groove 221.
[0042] Then, the output shaft of the fastening drive motor 265 drives the gear drive shaft 263 to rotate through the coupling. The gear drive shaft 263 then drives the fastening drive ring 25 to rotate through the meshing connection of the fastening drive gear 264 and the fastening driven gear ring 261. Under the mutual constraint of the fastening drive mating groove 251 and the fastening drive support block 252, the fastening drive mating groove 251 can drive the fastening drive support block 252 together with the end cap fastening support shaft 21 to move along the axial direction of the fastening connection hole 241, and the direction of movement is away from the quick-release support ring 23. The end cap fastening support shaft 21 together with the fastening connecting rod 22 moves away from the quick-release support ring 23, so that the snap-fit connection ring 231 and the snap-fit mating groove 221 tighten each other, thereby fastening the entire end cap 11 together with the quick-release support ring 23 to the end of the main pipe 10, and sealing the main pipe 10.
[0043] During the rotation of the fastening drive ring 25, the fastening drive ring 25 drives the shielding limit ring 27 to rotate together, so that the anti-loosening pressure strip 272 presses and supports the fastening connecting rod 22 on the side away from the main pipe 10, restricting the rotation of the fastening connecting rod 22 around the first fixed hinge 211 and preventing the fastening connecting rod 22 from accidentally loosening.
[0044] The disassembly process of the end cap 11 is as follows: the output shaft of the fastening drive motor 265 drives the gear drive shaft 263 to rotate through the coupling, which is opposite to the rotation direction of the installation process. The gear drive shaft 263 then drives the fastening drive ring 25 to rotate through the meshing connection of the fastening drive gear 264 and the fastening driven gear ring 261. Under the mutual constraint of the fastening drive mating groove 251 and the fastening drive support block 252, the fastening drive mating groove 251 can drive the fastening drive support block 252 together with the end cap fastening support shaft 21 to move along the axis of the fastening connection hole 241, and the direction of movement is closer to the quick-release support ring 23. The end cap fastening support shaft 21 together with the fastening connecting rod 22 moves towards the quick-release support ring 23, so that the snap-fit of the snap-fit connection ring 231 and the snap-fit mating groove 221 is in a loose state.
[0045] When the fastening connecting rod 22 and the disassembly extension groove 271 are in the same radial plane of the main pipe 10, the fastening connecting rod 22 is deflected around the rotation axis of the first fixed hinge 211 and moved away from the snap-fit connecting ring 231, so that the snap-fit connecting ring 231 and the snap-fit mating groove 221 are separated from each other. Finally, the entire end cap 11 together with the quick-release support ring 23 can be removed from the end of the main pipe 10 along the axial direction of the main pipe 10.
Claims
1. A quick-release large-diameter titanium plate end cap, characterized in that, It includes a main pipe (10) and a cap (11) sealed to the end of the main pipe (10). The main pipe (10) is provided with a quick-release mechanism (20) for fastening the cap (11) on the outside. The quick-release mechanism (20) for the end cap includes multiple end cap fastening support shafts (21) arranged parallel to the axis of the main pipe (10). The end of the end cap fastening support shaft (21) is connected to a fastening connecting rod (22) through a first fixed hinge (211). The fastening connecting rod (22) has a snap-fit groove (221) on its side. The end cap (11) is fixed with a quick-release support ring (23) arranged coaxially with the main pipe (10) on the outside. The quick-release support ring (23) is fixed with a snap-fit connecting ring (231) arranged coaxially with it on the outside. The snap-fit connecting ring (231) is snap-fitted into the snap-fit groove (221).
2. The quick-release large-diameter titanium plate end cap according to claim 1, characterized in that, The main pipe (10) is fixed with a limiting support ring (24) coaxial with it. The limiting support ring (24) has a plurality of fastening connection holes (241) that pass through in a direction parallel to the axis of the main pipe (10). The end cap fastening support shaft (21) is slidably connected in the fastening connection holes (241). A fastening drive ring (25) is rotatably connected to the outside of the main pipe (10). The fastening drive ring (25) has multiple fastening drive mating grooves (251) on its outside. A fastening drive support block (252) extending radially along the main pipe (10) is fixed on the end cap fastening support shaft (21). The fastening drive support block (252) is slidably fitted in the fastening drive mating groove (251).
3. A quick-release large-diameter titanium plate end cap according to claim 2, characterized in that, A fastening driven gear ring (261) is fixed to the outside of the fastening drive ring (25), a drive support seat (262) is fixed to the outside of the main pipe (10), a gear drive shaft (263) is rotatably connected to the drive support seat (262), a fastening drive gear (264) is fixed to the gear drive shaft (263), and the fastening drive gear (264) meshes with the fastening driven gear ring (261). A fastening drive motor (265) is fixed on the outside of the main pipe (10), and the output shaft of the fastening drive motor (265) is connected to the gear drive shaft (263) through a coupling.
4. A quick-release large-diameter titanium plate end cap according to claim 2, characterized in that, The fastening drive ring (25) is fixed with a shielding and limiting ring (27) arranged coaxially with it. The shielding and limiting ring (27) has a plurality of disassembly extension grooves (271) that are radially connected to the main pipe (10). The inner side of the shielding and limiting ring (27) is fixed with a plurality of anti-loosening pressure strips (272) extending around its circumference.