A thin steel drum with a quick sealing cover structure
By combining a cover plate, a locking ring, and a moving ring, and utilizing the design of a limiting pin and a spring, the complex connection between the sealing cover plate and the barrel body of thin steel barrels is solved, enabling rapid sealing and opening, and improving operational efficiency and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN HUANATONG EQUIP TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-24
AI Technical Summary
The existing thin steel drums have a complicated connection between the sealing cover and the drum body, which makes it impossible to open and close quickly.
The cover sealing structure consists of a cover plate, a locking ring, and a moving ring. Through the cooperation of a limit pin and a spring, the cover plate and the locking ring can be quickly locked and unlocked. The connection between the external thread and the threaded hole simplifies the operation process.
It achieves quick sealing and opening of the cover and barrel, with a simple structural design, fast installation, stable sealing, and convenient operation.
Smart Images

Figure CN224546874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of barrel sealing technology, specifically a thin steel barrel with a quick-sealing cap structure. Background Technology
[0002] Thin steel drums are widely used for the storage and transportation of various liquids. They have excellent properties for packaging special dangerous goods. They are not easily broken, do not rust, and are lightweight. They also have excellent oil resistance and strong corrosion resistance. They are often used for packaging dangerous goods that require heat preservation, moisture protection, pressure resistance, and corrosion resistance.
[0003] For example, the announcement number CN216103595U is a low-temperature resistant plastic bucket. The device includes a plastic bucket body, which includes a bucket body. An outer frame is provided on the top of the outer side of the bucket body. A handle is connected and installed on the side of the outer frame away from the bucket body through a connecting shaft. By setting the bucket lid structure, the user can easily and quickly fasten the bucket lid firmly to the top of the plastic bucket during use. The operation is simple and convenient.
[0004] The connection between the sealing cover and the barrel body of the above-mentioned device is relatively complicated and cannot achieve rapid opening and closing. Therefore, we propose a thin steel barrel with a quick-sealing cover structure to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a thin steel bucket with a quick-sealing cap structure to solve the problem mentioned in the background art that the connection between the sealing cap and the bucket body is relatively complex and cannot achieve quick opening and closing.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a thin steel barrel with a quick-sealing cap structure, comprising a barrel body, wherein the upper end of the barrel body is open;
[0007] Also includes:
[0008] A cover plate is movably engaged at the upper end of the barrel body, and the diameter of the cover plate is larger than the diameter of the barrel body. A locking ring is installed below the cover plate, and the locking ring is movably engaged with the outside of the barrel body. The outer surface of the barrel body is provided with locking grooves, which are connected to the outside of the barrel body. There are four locking grooves arranged in a circular array on the outer surface of the barrel body. A limiting pin is installed inside the locking groove. The limiting pin swings inside the locking groove through a rotating rod. When the cover plate and the barrel body are closed, the limiting pin is movably engaged with the upper end of the locking ring.
[0009] Preferably, the cover plate and the locking ring are connected by a connecting rod. The upper end of the connecting rod extends above the cover plate, and four sets of connecting rods are arranged in a circular array at the upper end of the locking ring. The bottom of the connecting rod is connected to the locking ring by a rotating shaft, and the connecting rod rotates at the upper end of the locking ring via the rotating shaft. A limit block is provided at the upper end of the connecting rod.
[0010] Preferably, a second spring is provided on the outside of the connecting rod, and the second spring is located between the limiting block and the cover plate.
[0011] Preferably, the upper half of the connecting rod is provided with an external thread, the surface of the cover plate is provided with a threaded hole, the upper half of the connecting rod extends to the top of the cover plate through the threaded hole, and the external thread and the threaded hole are threadedly connected.
[0012] Preferably, the barrel body is provided with an actuating ring on its exterior, and the actuating ring is located between the cover plate and the locking ring. Sliding blocks are evenly distributed around the exterior of the actuating ring, and the bottom of the sliding blocks extends below the actuating ring. The surface of the sliding blocks is provided with a round hole, and the round hole is engaged with the exterior of the connecting rod.
[0013] Preferably, a first spring is provided inside the engagement groove, and the first spring is connected to the limiting pin.
[0014] Preferably, a sealing ring is provided on the upper surface of the barrel, and the sealing ring is fixed to the upper surface of the barrel by adhesive bonding.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) By using a cover plate sealing structure composed of a cover plate, a locking ring and a moving ring, when the cover needs to be sealed, the locking ring is put on the outside of the barrel from the top. During the downward movement, the locking ring is squeezed against the limiting pin. After passing through the limiting pin, the locking ring is limited by the limiting pin structure, so that the locking ring cannot move upward. The cover plate is pressed tightly against the surface of the barrel under the action of the second spring. Then, the connecting rod is rotated by the limiting block to make the external thread connect with the threaded hole, so that the cover plate and the locking ring are locked together, and the cover plate can be firmly fixed to the surface of the barrel. This structure is simple in design, relatively quick to install, and has a stable seal.
[0017] (2) By setting a sliding block outside the actuating ring, when the cover plate needs to be removed, the limiting block is rotated in the opposite direction to move the external thread of the connecting rod out of the threaded hole, so that the cover plate is loosened. Then the actuating ring is lowered, and the sliding block outside the actuating ring contacts the upper surface of the locking ring first, thereby generating pressure to make the locking ring move slightly downward, which facilitates the movement of the limiting pin. Then the actuating ring is lowered continuously so that the actuating ring presses the limiting pin into the locking groove, and the locking ring can be lifted upward to remove the cover plate. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the separation structure of the closed cover and the barrel body of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the limiting pin structure of this utility model;
[0021] Figure 4 This is an enlarged view of the structure at point A of this utility model;
[0022] In the diagram: 1. Barrel body; 2. Cover plate; 3. Sealing ring; 4. Engaging ring; 5. Actuating ring; 6. Engaging groove; 7. Connecting rod; 8. Limiting pin; 9. First spring; 10. Sliding block; 11. Round hole; 12. Rotating shaft; 13. Limiting block; 14. Second spring; 15. Threaded hole; 16. External thread. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] This invention provides a thin steel drum with a quick-sealing lid structure. The device includes a drum body 1, the upper end of which is open. This invention primarily addresses the problem that the connection between the sealing lid and the drum body is complex, preventing rapid opening and closing.
[0025] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.
[0026] The cover plate 2 is movably engaged with the upper end of the barrel body 1, and the diameter of the cover plate 2 is larger than the diameter of the barrel body 1. A locking ring 4 is installed below the cover plate 2, and the locking ring 4 is movably engaged with the outside of the barrel body 1. The outer surface of the barrel body 1 is provided with locking grooves 6, which connect to the outside of the barrel body 1. Four locking grooves 6 are arranged in a circular array on the outer surface of the barrel body 1. A limiting pin 8 is installed inside the locking groove 6. The limiting pin 8 swings inside the locking groove 6 via a rotating rod. When the cover plate 2 and the barrel body 1 are closed, the limiting pin 8 is movably engaged with the upper end of the locking ring 4. A first spring 9 is provided inside the locking groove 6, and the first spring 9 is connected to the limiting pin 8, allowing the limiting pin 8 to... The locking pin 8 is reset. A sealing ring 3 is provided on the upper surface of the barrel 1 and is fixed to the upper surface of the barrel 1 by adhesion. The sealing ring 3 improves the sealing effect. A second spring 14 is provided on the outside of the connecting rod 7 and is located between the limiting block 13 and the cover plate 2. The cover plate 2 and the locking ring 4 are connected by the connecting rod 7. The upper end of the connecting rod 7 extends above the cover plate 2. Four sets of connecting rods 7 are arranged in a ring array on the upper end of the locking ring 4. The bottom of the connecting rod 7 is connected to the locking ring 4 by a rotating shaft 12. The connecting rod 7 rotates on the upper end of the locking ring 4 through the rotating shaft 12. A limiting block 13 is provided on the upper end of the connecting rod 7.
[0027] Please see Figure 4 To further explain, the upper half of the connecting rod 7 is provided with an external thread 16, and the surface of the cover plate 2 is provided with a threaded hole 15. The upper half of the connecting rod 7 extends to the top of the cover plate 2 through the threaded hole 15, and the external thread 16 is threadedly connected to the threaded hole 15. The external thread 16 is provided to lock the connecting rod 7 to prevent loosening when the cover plate 2 is closed.
[0028] Please see Figure 4 To further explain, a toggle ring 5 is provided on the outside of the barrel body 1, and the toggle ring 5 is located between the cover plate 2 and the locking ring 4. Sliding blocks 10 are evenly distributed around the outside of the toggle ring 5, and the bottom of the sliding blocks 10 extends below the toggle ring 5. A round hole 11 is provided on the surface of the sliding block 10, and the round hole 11 is engaged with the outside of the connecting rod 7 to retract the limiting pin 8, thereby facilitating the movement of the locking ring 4.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A thin steel drum with a quick-sealing cap structure, comprising a drum body (1), wherein the upper end of the drum body (1) is open; Its features are: Also includes: The cover plate (2) is movably engaged at the upper end of the barrel body (1), and the diameter of the cover plate (2) is larger than the diameter of the barrel body (1). A locking ring (4) is installed below the cover plate (2), and the locking ring (4) is movably engaged at the outside of the barrel body (1). The outer surface of the barrel body (1) is provided with a locking groove (6), which connects to the outside of the barrel body (1). There are four locking grooves (6) arranged in a ring array on the outer surface of the barrel body (1). A limiting pin (8) is installed inside the locking groove (6). The limiting pin (8) swings inside the locking groove (6) by a rotating rod. When the cover plate (2) and the barrel body (1) are closed, the limiting pin (8) is movably engaged at the upper end of the locking ring (4).
2. A thin steel drum with a quick-sealing cap structure according to claim 1, characterized in that: The cover plate (2) and the locking ring (4) are connected by a connecting rod (7). The upper end of the connecting rod (7) extends above the cover plate (2), and four sets of the connecting rod (7) are arranged in a ring array at the upper end of the locking ring (4). The bottom of the connecting rod (7) is connected to the locking ring (4) by a rotating shaft (12), and the connecting rod (7) rotates at the upper end of the locking ring (4) through the rotating shaft (12). A limit block (13) is provided at the upper end of the connecting rod (7).
3. A thin steel drum with a quick-sealing cap structure according to claim 2, characterized in that: The connecting rod (7) is provided with a second spring (14) on its outside, and the second spring (14) is located between the limiting block (13) and the cover plate (2).
4. A thin steel drum with a quick-sealing cap structure according to claim 2, characterized in that: The upper half of the connecting rod (7) is provided with an external thread (16), and the surface of the cover plate (2) is provided with a threaded hole (15). The upper half of the connecting rod (7) extends to the top of the cover plate (2) through the threaded hole (15), and the external thread (16) and the threaded hole (15) are threadedly connected.
5. A thin steel drum with a quick-sealing cap structure according to claim 1, characterized in that: The barrel body (1) is provided with an actuating ring (5) on its outside, and the actuating ring (5) is located between the cover plate (2) and the locking ring (4). Sliding blocks (10) are evenly distributed around the outside of the actuating ring (5), and the bottom of the sliding block (10) extends below the actuating ring (5). The surface of the sliding block (10) is provided with a round hole (11), and the round hole (11) is engaged with the outside of the connecting rod (7).
6. A thin steel drum with a quick-sealing cap structure according to claim 1, characterized in that: The locking groove (6) is provided with a first spring (9), and the first spring (9) is connected to the limiting pin (8).
7. A thin steel drum with a quick-sealing cap structure according to claim 1, characterized in that: A sealing ring (3) is provided on the upper surface of the barrel (1), and the sealing ring (3) is fixed to the upper surface of the barrel (1) by adhesive bonding.