Packaging tin can with cover convenient to open and close
By designing an easy-to-open and close packaging tin can, the lid is separated from the can body by pressing the top cover to transfer force. Combined with the locking of the sealing ring and the return spring, the problem of poor sealing of existing packaging tin cans is solved, ensuring the quality and safety of the stored goods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU FENGYUAN CAN MAKING TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The existing packaging tin cans have inconvenient opening and closing mechanisms, resulting in poor sealing and affecting the preservation quality and safety of the goods.
A packaging tin can including a lid, an opening and closing mechanism, an installation ring, an anti-drop mechanism, and a sealing component was designed. The lid is separated from the can body by pressing the top cover, and the sealing ring and rubber clamp are used to achieve a seal. The return spring ensures that the lid is not dropped.
It enables convenient opening and closing of the can lid and ensures a tight seal, preventing air and moisture from entering, maintaining the quality and safety of the contents, and preventing items from falling out.
Smart Images

Figure CN224211565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tin can technology, and in particular to a tin can with an easy-to-open and close lid. Background Technology
[0002] Before distribution, goods are usually packaged in cans to protect them and reduce the impact of external factors. After packaging, the goods need to be transported by transportation companies to their destination, and then distributed by various merchants. Well-preserved goods can increase consumers' desire to buy, making it easier and faster to sell the goods.
[0003] A search revealed Chinese publication number CN221114799U, which discloses a packaging tin can, including a can body. The can body has an internal assembly / disassembly device. The outer wall of the can body has evenly distributed through grooves, multiple of which extend to the inner wall of the can body. The bottom wall of the can body has a toothed groove, and a through hole is formed in the middle of the top wall of each toothed groove, with the top of the through hole extending to the top wall of the inner wall of the can body. An inner cylinder is rotatably connected inside the can body. The bottom wall of the inner cylinder has a retaining groove, and a rotating block is slidably connected within the retaining groove. A connecting shaft is fixedly connected to the bottom end of the rotating block, and the bottom end of the connecting shaft extends through the bottom end of the through hole. A positioning component is provided at the bottom end of the connecting shaft. In this invention, through the combined action of the toothed disc, toothed groove, sliding sleeve, slider, connecting shaft, rotating block, retaining groove, inner cylinder, and through grooves, different patterns can be displayed through the through grooves, making the packaging can suitable for different occasions and allowing for different labels.
[0004] The patent description mentions that "the can body can be sealed by the can lid, and the can lid can be easily opened by the pull rod." Although the can body can be opened, quick-opening and closing packaging cans are usually designed with a good sealing structure to ensure the preservation quality of the contents. If it is not quick to open and close, the sealing mechanism will be damaged, allowing air and moisture to easily enter the can, causing food, medicine, etc. to become damp and oxidized, thereby shortening their shelf life and affecting the quality and safety of the items. In view of the above problems, a packaging can with an easy-to-open lid is proposed. Utility Model Content
[0005] This utility model proposes a packaging tin can with an easy-to-open and close lid, aiming to improve the problem that some packaging tin cans in the prior art are not easy to open and close.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A packaging tin can with an easy-to-open lid includes a can body, a lid slidably connected to the top of the can body, an opening and closing mechanism provided on the outside of the lid, an installation ring fixedly connected inside the can body, and multiple anti-detachment mechanisms fixedly connected to the outside of the installation ring.
[0008] The opening and closing mechanism includes a pressing top cover, which is disposed outside the can lid. Fastening blocks are fixedly connected to the bottom perimeter of the can lid, an arc-shaped fixing ring is fixedly connected to the top of the can lid, and a sealing component is fixedly connected to the bottom of the pressing top cover.
[0009] The above solution makes the opening and closing mechanism of the tin can practical and convenient. Pressing the top cover covers the outside of the can lid, making operation easy. The fastening block at the bottom of the can lid can tightly fasten the can body to ensure a seal. The arc-shaped fixing ring at the top is easy to grip. Pressing the sealing component at the bottom of the top cover further enhances the sealing effect. The overall design is both beautiful and practical.
[0010] As a further description of the above technical solution:
[0011] The sealing assembly includes a sealing ring, the outer side of which is fixedly connected to the outer bottom end of the press-top cover, and the outer side of the sealing ring is in contact with the interior of the tank.
[0012] Through the above solution, the sealing components of the packaged tin cans are extremely crucial, effectively ensuring the storage quality of the contents. The sealing ring is tightly fixed to the bottom of the outer side of the press-top lid. The material is soft and elastic. When the press-top lid is closed, the sealing ring slides down and precisely fits into the inside of the can, creating a seamless connection. This comprehensively blocks air and moisture, preventing the contents from getting damp and oxidizing, and maintaining their quality for a long time.
[0013] As a further description of the above technical solution:
[0014] The anti-detachment mechanism includes a mounting housing, which is fixedly connected to the outside of the mounting ring. A limiting plate is slidably connected inside the mounting housing. A sliding rod is fixedly connected to the outside of the limiting plate. A reset assembly is sleeved on the outside of the sliding rod. A rubber clamp is fixedly connected to the outside of the sliding rod.
[0015] The above solution features an ingenious anti-fall mechanism for the packaging can, ensuring the safety of the contents. The mounting shell, installed outside the mounting ring, has an internal sliding connection to a limiting plate. The limiting plate is connected to a sliding rod, which is fitted with a reset component. The sliding rod moves flexibly, and the rubber catch plate at the front end of the sliding rod is soft yet highly resilient, firmly holding the contents in place. Even if the can shakes, the contents can be effectively prevented from falling off.
[0016] As a further description of the above technical solution:
[0017] The reset assembly includes a reset spring, which is sleeved outside the sliding rod.
[0018] With the above solution: the return spring is tightly fitted around the outside of the sliding rod, with one end firmly against the inner wall of the mounting housing and the other end connected to the limiting plate. When an object squeezes the rubber clamp, the sliding rod moves the limiting plate backward, and the return spring is compressed and contracts. Once the external force disappears, the spring quickly rebounds, pushing the sliding rod and the rubber clamp back into place, thus continuously performing the function of preventing detachment.
[0019] As a further description of the above technical solution:
[0020] A flexible pad is fixedly connected to the outer bottom end of the mounting ring, and the flexible pad is fixedly connected to the outside of the rubber clamp.
[0021] The above solution involves a flexible pad firmly connected to the bottom of the mounting ring. The flexible pad is soft and can effectively buffer vibrations. One end of the pad is connected to the mounting ring, and the other end is tightly fitted to the rubber clamp. This not only enhances the stability of the rubber clamp but also creates a buffer between the items and the tank, preventing damage to the items due to collisions and friction, thus providing comprehensive protection for the items inside the tank.
[0022] As a further description of the above technical solution:
[0023] The sliding rod is externally slidably connected to the inside of the mounting housing, and the outside of the return spring is in contact with the outside of the flexible pad.
[0024] With the above solution, the sliding rod slides smoothly within the mounting housing, accurately transmitting external force. The return spring is tightly fitted around the sliding rod, with one end abutting against the inner wall of the mounting housing and the other end contacting the flexible pad. When the rubber clamp is subjected to force, the sliding rod moves backward to compress the spring. When the external force disappears, the spring, supported by the flexible pad, quickly pushes the sliding rod back to its original position, ensuring stable operation of the anti-dislodgement function.
[0025] As a further description of the above technical solution:
[0026] The outer side of the fastening block engages with the outer side of the arc-shaped fixing ring, and the outer side of the can lid contacts the outer side of the arc-shaped fixing ring.
[0027] With the above solution, the snap-fit block at the bottom of the can lid engages precisely with the arc-shaped fixing ring at the top, forming a stable connection. The opening and closing is clearly tactile, and the can lid is in close contact with the arc-shaped fixing ring, ensuring a smooth appearance and enhancing the overall sealing performance.
[0028] As a further description of the above technical solution:
[0029] One end of the reset spring is fixedly connected to the outside of the rubber clamp, and the other end of the reset spring is fixedly connected to the outside of the mounting ring.
[0030] With the above solution: one end of the return spring is firmly fixed to the outside of the rubber clamp, and the other end is firmly rooted to the outside of the mounting ring. When the rubber clamp is displaced by the pressure of the object, the return spring extends and retracts accordingly. By cleverly utilizing elastic potential energy, the return spring quickly rebounds after the object is removed from the pressure, helping the rubber clamp to return to its original position.
[0031] This utility model has the following beneficial effects:
[0032] 1. In this utility model, by pressing the top cover, the pressure is transmitted to the fastening block through the top cover, which in turn converts the pressing force into a force that separates the can cover from the can body, causing the fastening block to pry outward. At this time, the can cover can be removed, and the fastening block can be reset. When closing the can body, the can cover is aligned with the can body.
[0033] 2. In this utility model, when the can body and the can lid are engaged, the sealing ring can be clamped to the rubber clamping plate, which in turn can squeeze the sliding rod. This allows the sliding rod to slide inside the mounting housing via the limiting plate, which in turn squeezes the return spring outside the sliding rod, causing the return spring to deform. This allows the rubber clamping plate and the sealing ring to fit tightly together, thus preventing the entire assembly from falling off. Attached Figure Description
[0034] Figure 1 This is a three-dimensional schematic diagram of a packaging tin can with an easy-to-open lid, as proposed in this utility model.
[0035] Figure 2 A schematic diagram of the sealing ring structure of a packaging tin can with an easy-to-open lid, as proposed in this utility model;
[0036] Figure 3 This is a schematic diagram of the structure of a rubber pallet for packaging tin cans that facilitates opening and closing the lid, as proposed in this utility model.
[0037] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0038] Legend:
[0039] 1. Tank body; 2. Tank lid; 3. Opening and closing mechanism; 301. Pressing top cover; 302. Fastening block; 303. Arc-shaped fixing ring; 4. Mounting ring; 5. Anti-falling mechanism; 501. Mounting housing; 502. Limiting plate; 503. Sliding rod; 504. Return spring; 505. Rubber retaining plate; 6. Flexible pad; 7. Sealing ring. Detailed Implementation
[0040] 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.
[0041] Reference Figures 4 to 3 This utility model provides an embodiment of a packaging tin can with an easy-to-open lid, comprising a can body 1, which is cylindrical in shape and made by stamping and welding. The wall thickness is determined according to actual usage requirements and the weight of the items it carries. A can lid 2 is slidably connected to the top of the can body 1. The can lid 2 is designed with an opening and closing mechanism 3 on its exterior, which facilitates the opening and closing of the can lid 2. An installation ring 4 is fixedly connected inside the can body 1. The function of the installation ring 4 is to provide an installation base for the anti-detachment mechanism 5, ensuring that the anti-detachment mechanism 5 can be stably installed inside the can body 1. Multiple anti-detachment mechanisms 5 are fixedly connected to the exterior of the installation ring 4. The anti-detachment mechanism 5 includes an installation housing 501. The interior of the installation housing 501 is precision machined and has a smooth surface, providing a good environment for the sliding of the limiting plate 502. The exterior of the installation housing 501 is fixedly connected to the exterior of the installation ring 4. The interior of the installation housing 501 is slidably connected to the limiting plate 502, which is rectangular in shape.
[0042] Its dimensions are adapted to the internal space of the mounting housing 501, with a length slightly smaller than the internal length and a width slightly smaller than the internal width. The limiting plate 502 is externally welded to a sliding rod 503. A reset assembly, including a reset spring 504, is sleeved on the outside of the sliding rod 503. When the sliding rod 503 is moved under force, the reset spring 504 is compressed or stretched, storing elastic potential energy. When the external force disappears, the reset spring 504 releases its elastic potential energy, pushing the limiting plate 502. The plate 502 and the sliding rod 503 are reset. The outer sleeve of the reset spring 504 is fitted on the outside of the sliding rod 503. A rubber clamp 505 is fixedly connected to the outside of the sliding rod 503. The rubber clamp 505 can better hold the items in the can and prevent them from falling out. When the items are put into the can 1, the items will squeeze the rubber clamp 505, causing the sliding rod 503 to slide inward and the reset spring 504 to be compressed. When the items are placed stably, the elasticity of the reset spring 504 makes the rubber clamp 505 press tightly against the items, which plays a role in preventing them from falling out.
[0043] Specifically, the cylindrical can 1 is made by stamping and welding, and the wall thickness is determined according to the usage requirements and the weight of the load. The top of the can 1 is slidably connected to the can lid 2 with the opening and closing mechanism 3 for easy operation. The can 1 is fixedly installed with a ring 4 inside, which provides the installation base for the anti-drop mechanism 5. Multiple anti-drop mechanisms 5 are installed outside the ring 4. The mounting housing 501 is slidably connected to a matching rectangular limiting plate 502. The limiting plate 502 is connected to a sliding rod 503. The sliding rod 503 is fitted with a return spring 504. When an item is placed into the can, the item squeezes the rubber clamp 505, causing the sliding rod 503 to move inward and the return spring 504 to compress. After the item is stable, the spring force pushes the rubber clamp 505 to hold the item in place and prevent it from falling off.
[0044] Reference Figures 2 to 3 The opening and closing mechanism 3 includes a pressing top cover 301. When the can lid 2 is placed on the can body 1, the fastening block 302 can be tightly fastened with the arc-shaped fixing ring 303 on the top edge of the can body 1, thereby firmly fixing the can lid 2 to the can body 1 and preventing the can lid 2 from accidentally falling off. The pressing top cover 301 is located on the outside of the can lid 2. Fastening blocks 302 are fixedly connected to the bottom edge of the can lid 2 around all four sides, and an arc-shaped fixing ring 303 is fixedly connected to the top edge of the can lid 2. The function of the arc-shaped fixing ring 303 is to press the top cover. 301 provides a base for installation and rotation. Pressing the top cover 301 causes the arc-shaped fixing ring 303 to tilt up at a certain angle, realizing the opening and closing operation. A sealing assembly is fixedly connected to the bottom of the top cover 301. The sealing assembly includes a sealing ring 7. The sealing ring 7 can fit tightly with the inside of the tank 1 to form a good sealing effect, preventing the contents of the tank from getting damp, oxidized, or having odors enter. The outside of the sealing ring 7 is fixedly connected to the bottom of the top cover 301. The outside of the sealing ring 7 is in contact with the inside of the tank 1.
[0045] Specifically, the cylindrical can 1 is made by stamping and welding, and the wall thickness is determined according to the usage requirements and the weight of the load. The top of the can 1 is slidably connected to the can lid 2 with the opening and closing mechanism 3 for easy operation. The can 1 is fixedly installed with a ring 4 inside, which provides the installation base for the anti-drop mechanism 5. Multiple anti-drop mechanisms 5 are installed outside the ring 4. The mounting housing 501 is slidably connected to a matching rectangular limiting plate 502. The limiting plate 502 is connected to a sliding rod 503. The sliding rod 503 is fitted with a return spring 504. When an item is placed into the can, the item squeezes the rubber clamp 505, causing the sliding rod 503 to move inward and the return spring 504 to compress. After the item is stable, the spring force pushes the rubber clamp 505 to hold the item in place and prevent it from falling off.
[0046] Reference Figures 2 to 4A flexible pad 6 is fixedly connected to the bottom of the mounting ring 4. Its function is to buffer and protect, on the one hand, to avoid direct hard contact between the mounting ring 4 and the rubber clamp 505, thus preventing wear; on the other hand, when the anti-drop mechanism 5 is working, it can play a certain shock absorption and buffering effect, improving the stability of the overall structure. The flexible pad 6 is fixedly connected to the outside of the rubber clamp 505. The sliding rod 503 is slidably connected to the inside of the mounting housing 501. The outside of the return spring 504 is in contact with the outside of the flexible pad 6. The outside of the fastening block 302 is engaged with the outside of the arc-shaped fixing ring 303. The outside of the can lid 2 is in contact with the outside of the arc-shaped fixing ring 303, thus achieving a tight connection and seal with the can body 1. At the same time, the connection method between the can lid 2 and the arc-shaped fixing ring 303 ensures the stability and smoothness of the can lid 2 during the opening and closing process, making it convenient for users to operate. One end of the return spring 504 is fixedly connected to the outside of the rubber clamp 505, and the other end of the return spring 504 is fixedly connected to the outside of the mounting ring 4.
[0047] Specifically, when the lid 2 is placed on the can body 1, the fastening blocks 302 around the bottom of the lid 2 are tightly engaged with the arc-shaped fixing ring 303 at the top edge of the can body 1, firmly securing the lid 2 and preventing accidental detachment. The arc-shaped fixing ring 303 at the top of the lid 2 provides a base for the installation and rotation of the pressing top cover 301. When the top cover 301 is pressed, the arc-shaped fixing ring 303 can be raised at a certain angle, realizing the opening and closing of the lid 2. The bottom of the pressing top cover 301 is connected to a sealing component, in which the sealing ring 7 fits tightly with the inside of the can body 1, forming a good seal, which can effectively prevent the contents of the can from getting damp, oxidized, or having odors enter. When the lid 2 is closed, it ensures the stability of the storage environment of the contents of the can.
[0048] Working principle: When opening the can 1, the top cover 301 is pressed. Under the action of the top cover 301, the pressure is transmitted to the fastening block 302, which converts the pressing force into a force that separates the can cover 2 from the can 1. This causes the fastening block 302 to pry outward, allowing the can cover 2 to be removed and the fastening block 302 to reset. When closing the can 1, the can cover 2 is aligned with the can 1.
[0049] When preventing the entire assembly from falling off, by engaging the tank body 1 and the tank cover 2, the sealing ring 7 can be clamped to the rubber clamping plate 505, which in turn can compress the sliding rod 503. This allows the sliding rod 503 to slide inside the mounting housing 501 via the limiting plate 502, which in turn compresses the return spring 504 outside the sliding rod 503, causing the return spring 504 to deform. This allows the rubber clamping plate 505 and the sealing ring 7 to fit tightly together, thus preventing the entire assembly from falling off.
[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A packaging tin can with an easy-to-open lid, comprising a can body (1), characterized in that: The outer top of the tank body (1) is slidably connected to a can lid (2), and the can lid (2) is provided with an opening and closing mechanism (3). The tank body (1) is fixedly connected to an installation ring (4), and the installation ring (4) is fixedly connected to a plurality of anti-dropping mechanisms (5). The opening and closing mechanism (3) includes a pressing top cover (301), the outside of which is disposed on the outside of the can lid (2). Fastening blocks (302) are fixedly connected to the bottom of the can lid (2) around the perimeter. An arc-shaped fixing ring (303) is fixedly connected to the top of the can lid (2). A sealing component is fixedly connected to the bottom of the pressing top cover (301).
2. The packaging tin can with an easy-to-open lid according to claim 1, characterized in that: The sealing assembly includes a sealing ring (7), the outer side of which is fixedly connected to the outer bottom end of the pressing top cover (301), and the outer side of the sealing ring (7) is in contact with the interior of the tank body (1).
3. A packaging tin can with an easy-to-open lid according to claim 1, characterized in that: The anti-detachment mechanism (5) includes a mounting housing (501), which is fixedly connected to the outside of the mounting ring (4). A limiting plate (502) is slidably connected inside the mounting housing (501). A sliding rod (503) is fixedly connected to the outside of the limiting plate (502). A reset component is sleeved on the outside of the sliding rod (503). A rubber clamp (505) is fixedly connected to the outside of the sliding rod (503).
4. A packaging tin can with an easy-to-open lid according to claim 3, characterized in that: The reset assembly includes a reset spring (504), which is sleeved on the outside of the sliding rod (503).
5. A packaging tin can with an easy-to-open lid according to claim 4, characterized in that: The outer bottom end of the mounting ring (4) is fixedly connected to a flexible pad (6), and the outer side of the flexible pad (6) is fixedly connected to the outside of the rubber clamp (505).
6. A packaging tin can with an easy-to-open lid according to claim 5, characterized in that: The sliding rod (503) is externally slidably connected to the inside of the mounting housing (501), and the outside of the return spring (504) is in contact with the outside of the flexible pad (6).
7. A packaging tin can with an easy-to-open lid according to claim 1, characterized in that: The outer side of the fastening block (302) engages with the outer side of the arc-shaped fixing ring (303), and the outer side of the can lid (2) contacts the outer side of the arc-shaped fixing ring (303).
8. A packaging tin can with an easy-to-open lid according to claim 4, characterized in that: One end of the reset spring (504) is fixedly connected to the outside of the rubber plate (505), and the other end of the reset spring (504) is fixedly connected to the outside of the mounting ring (4).
Citation Information
Patent Citations
Packaging tin can
CN221114799U