Food can cover with self-locking function
By using a self-locking food can lid design and controlling air pressure changes through sealing and control components, the problem of difficult unscrewing of existing food can lids during sealed storage is solved, achieving convenient opening and stable sealing effect.
Patent Information
- Application Number
- CN202520531915.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-25
AI Technical Summary
When sealing fermented foods, the increased air pressure in existing food can lids makes unscrewing difficult, and they need to be completely tightened to achieve a seal, which increases the difficulty of operation.
A food can lid with a self-locking function was designed. Through the cooperation of sealing components and control components, it can be sealed to can openings with different inner diameters. The expansion membrane and piston plate control the air pressure change, and the combination of locking and slot structure ensures a stable seal and avoids complete tightening and loosening.
It allows for easy opening of the can lid without fully tightening it, reducing the difficulty of unscrewing, ensuring a good seal, and facilitating the adjustment of the internal air pressure.
Smart Images
Figure CN223949777U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food packaging technical field, more specifically, the utility model relates to a food can cover with self locking function. BACKGROUND
[0002] Food cans are generally used in food packaging such as cans and milk powder that need to be stored for a long time, and the sealing performance and structural strength of the food cans determine the storage quality of the food during storage and transportation. The structure of the food can usually includes a can body and a can cover, which are processed separately and finally buckled. The food access channel is usually preset on the can cover to facilitate user use.
[0003] Most of the can covers are connected and fixed through threads, which can cause the pressure in the canned bottle to increase after being stored for a long time in the case of canned fermentable food. Practical experience shows that the pressure in the canned food is relatively large, and it is extremely difficult to unscrew the can cover, especially the threaded connection method needs to be completely tightened to achieve sealing, which further increases the difficulty of unscrewing. Therefore, a new type of food can cover needs to be developed to solve the problems existing in the prior art. SUMMARY
[0004] In order to overcome the shortcomings of the prior art, the utility model provides a food can cover with self locking function.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a food can cover with self locking function, including the can cover, the inside of the can cover is sleeved with the can opening, the inside of the can cover is provided with the control assembly, the upper end of the control assembly extends to the upper side of the can cover, the lower end of the control assembly extends to the inside of the can cover and is connected with the sealing assembly, the sealing assembly and the can cover are respectively sleeved on the inner and outer sides of the can opening, the inside of the can cover is provided with the sealing cavity which is located on the outer side of the control assembly, the lower end of the control assembly is sealingly sleeved in the inside of the sealing cavity, the top of the can cover is provided with the limiting ring, the upper end of the control assembly is connected with the can cover through the lock buckle.
[0006] The sealing assembly includes a hard sealing plate arranged in the can cover, the top of the hard sealing plate is fixedly connected with the expansion film, the upper end of the expansion film is fixedly connected to the top of the can cover, the outer diameter size of the hard sealing plate is smaller than the inner diameter size of the can opening, and the outer surface of the expansion film is sealingly attached to the inside of the can opening.
[0007] As a preferred technical scheme of the utility model, the inside of the can cover is provided with threads, the can cover is connected to the can opening through threads, the top of the inner cavity of the can cover is provided with a sealing gasket, and the sealing gasket is sealingly attached to the top of the can opening.
[0008] As a preferred technical scheme of the utility model, the control assembly comprises a pressing plate sealingly sleeved in the sealing cavity, the top of the pressing plate is fixedly connected with a connecting shaft, the upper end of the connecting shaft penetrates through the sealing cavity and extends above the tank cover and is fixedly connected with a piston plate, and the outer side of the piston plate is connected with a lock catch.
[0009] As a preferred technical scheme of the utility model, the bottom of the sealing cavity inner chamber is fixedly sleeved with a limiting ring, and the bottom of the pressing plate abuts against the top of the limiting ring.
[0010] As a preferred technical scheme of the utility model, the top of the hard sealing plate and the limiting ring are fixedly connected with a short shaft, and the hard sealing plate and the limiting ring are fixedly connected through the short shaft.
[0011] As a preferred technical scheme of the utility model, the lock catch comprises a fixed ring fixedly connected to the top of the tank cover, the outer surface of the fixed ring is fixedly connected with a plurality of clamping grooves which are uniformly distributed, the inside of the clamping grooves is rotatably connected with a clamping block, and the outer surface of the clamping block extends to the outside of the clamping grooves and is fixedly connected to the bottom of the inner cavity of the piston plate.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1、The utility model discloses a sealing assembly is arranged, and the sealing assembly can be sealingly sleeved in the inside of the canning opening of different inner diameters under the cooperation of the control assembly and the lock catch, thereby completing the sealed canning, avoiding the condition that the tank cover is completely screwed and the difficulty of unscrewing is increased, and through the design of the sealing assembly, the user can conveniently adjust the air pressure in the inside of the canning bottle, thereby facilitating the unscrewing of the tank cover.
[0014] 2、The utility model discloses a lock catch is arranged, and the piston plate can be locked with the tank cover through the clamping groove and the clamping block under the cooperation of the fixed ring, thereby ensuring that the position of the pressing plate in the inside of the sealing cavity remains stable, thereby ensuring that the expanded diaphragm can be firmly attached to the inner wall of the canning opening after expansion, avoiding the condition that the sealing is realized through the completely screwed mode. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the utility model;
[0016] Figure 2 It is a bottom schematic view of the utility model;
[0017] Figure 3 It is a sectional view of the front of the utility model;
[0018] Figure 4 It is a structural schematic view of the control assembly of the utility model;
[0019] Figure 5 It is a structure diagram of the fixed ring of the utility model.
[0020] In the figure: 1, the tank cover; 2, control assembly; 21, pressing plate; 22, connecting shaft; 23, piston plate; 3, sealing assembly; 31, hard sealing plate; 32, inflatable film; 4, sealing gasket; 5, sealing cavity; 6, limit ring; 7, lock catch; 71, fixed ring; 72, clamping groove; 73, clamping block. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0022] As Figures 1 to 5 shown, the utility model provides a kind of food tank cover with self-locking function, including tank cover 1, tank mouth is connected in the inside of tank cover 1, control assembly 2 is arranged in the inside of tank cover 1, the upper end of control assembly 2 extends to the upper of tank cover 1, the lower end of control assembly 2 extends to the inside of tank cover 1 and is connected with sealing assembly 3, sealing assembly 3 and tank cover 1 are respectively installed on the inside and outside of tank mouth, sealing cavity 5 located at the outside of control assembly 2 is set in the inside of tank cover 1, the lower end of control assembly 2 is sealed and connected in the inside of sealing cavity 5, limit ring 6 is set in the top of tank cover 1, the upper end of control assembly 2 is connected with tank cover 1 by lock catch 7;
[0023] Sealing assembly 3 includes hard sealing plate 31 arranged in the inside of tank cover 1, the top of hard sealing plate 31 is fixedly connected with inflatable film 32, the upper end of inflatable film 32 is fixedly connected to the top of tank cover 1, the outer diameter size of hard sealing plate 31 is less than the inner diameter size of tank mouth, the outer surface of inflatable film 32 is sealed and attached to the inside of tank mouth;Due to the arrangement of sealing assembly 3, sealing assembly 3 can be sealed and connected in the inside of tank mouth of different inner diameter under the cooperation of control assembly 2 and lock catch 7, so as to ensure that tank cover 1 and tank mouth can be connected without affecting the connection form, and through the design of sealing assembly 3, the tank can be opened frequently to take food.
[0024] Among them, the inside of tank cover 1 is provided with thread, tank cover 1 is connected on tank mouth by thread, sealing gasket 4 is set in the top of tank cover 1 cavity, sealing gasket 4 is sealed and attached to the top of tank mouth.
[0025] The control assembly 2 comprises a pressing plate 21 sealingly sleeved in the sealing cavity 5, the top of the pressing plate 21 is fixedly connected with a connecting shaft 22, the upper end of the connecting shaft 22 penetrates through the sealing cavity 5 and extends above the tank cover 1 and is fixedly connected with a piston plate 23, the outer side of the piston plate 23 is connected with the lock catch 7; due to the arrangement of the pressing plate 21, the movement of the pressing plate 21 can be controlled through the piston plate 23 and the connecting shaft 22 under the cooperation of the sealing cavity 5, and then the change of the air pressure in the inflatable film 32 can be controlled under the cooperation of the sealing cavity 5; and the piston plate 23 can make the control assembly 2 stable in the sealing cavity 5 under the cooperation of the lock catch 7 and the tank cover 1, so that the outer surface of the inflatable film 32 is firmly attached to the inner wall of the canning opening.
[0026] The bottom of the sealing cavity 5 is fixedly sleeved with a limiting ring 6, and the bottom of the pressing plate 21 abuts against the top of the limiting ring 6.
[0027] The top of the hard sealing plate 31 is fixedly connected with a short shaft between the limiting ring 6, and the hard sealing plate 31 and the limiting ring 6 are fixedly connected through the short shaft; due to the arrangement of the short shaft, the distance between the hard sealing plate 31 and the limiting ring 6 can be kept unchanged, and then the change of the air pressure in the inflatable film 32 can be controlled when the pressing plate 21 moves up and down in the sealing cavity 5, so that the connection between the inflatable film 32 and the inner wall of the canning opening can be changed by controlling the expansion and contraction of the inflatable film 32.
[0028] The lock catch 7 comprises a fixed ring 71 fixedly connected to the top of the tank cover 1, the outer surface of the fixed ring 71 is fixedly connected with a plurality of evenly distributed clamping grooves 72, the inside of the clamping grooves 72 is rotatably connected with a clamping block 73, and the outer surface of the clamping block 73 extends to the outside of the clamping groove 72 and is fixedly connected to the bottom of the inner cavity of the piston plate 23; due to the arrangement of the lock catch 7, the piston plate 23 can be locked with the tank cover 1 through the clamping grooves 72 and the clamping block 73 under the cooperation of the fixed ring 71, and then the position of the pressing plate 21 in the sealing cavity 5 can be kept stable, so that the inflated inflatable film 32 can be firmly attached to the inner wall of the canning opening.
[0029] The working principle and use process of the utility model are as follows:
[0030] The device is fixedly connected to the top of the canning opening through the tank cover 1, and can also be removed, so that the food is convenient to take;
[0031] Specifically, rotating the piston plate 23 can make the clamping block 73 separate from the clamping groove 72, at this time the inflatable film 32 is retracted under the elastic restoring force of the inflatable film 32 and the high air pressure in the canning bottle, and the control assembly 2 is driven to move upward as a whole by the gas between the sealing cavity 5 and the inflatable film 32, so that the air pressure in the canning bottle is reduced, and the tank cover 1 is removed as a whole.
[0032] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A food can lid with self-locking function, comprising a can lid (1), the inside of the can lid (1) is sleeved with a can opening, characterized in that: The inside of the can cover (1) is provided with a control assembly (2), the upper end of the control assembly (2) extends above the can cover (1), the lower end of the control assembly (2) extends to the inside of the can cover (1) and is connected with a sealing assembly (3), the sealing assembly (3) and the can cover (1) are respectively sleeved on the inside and outside of the can opening, a sealing cavity (5) is arranged on the outside of the control assembly (2) in the can cover (1), the lower end of the control assembly (2) is sealingly sleeved in the sealing cavity (5), and a limiting ring (6) is arranged on the top of the can cover (1); the upper end of the control assembly (2) is connected with the can cover (1) through a lock buckle (7). The sealing assembly (3) comprises a hard sealing plate (31) arranged in the can cover (1), the top of the hard sealing plate (31) is fixedly connected with an expansion film (32), the upper end of the expansion film (32) is fixedly connected to the top of the can cover (1), the outer diameter of the hard sealing plate (31) is smaller than the inner diameter of the can opening, and the outer surface of the expansion film (32) is sealingly attached to the inside of the can opening.
2. The food can lid having a self-locking function according to claim 1, characterized in that: The inside of the can cover (1) is provided with threads, the can cover (1) is connected to the can opening through threads, and a sealing gasket (4) is arranged on the top of the inner cavity of the can cover (1) and sealingly attached to the top of the can opening.
3. The food can lid with self-locking function according to claim 1, characterized in that: The control assembly (2) comprises a pressing plate (21) sealingly sleeved in the sealing cavity (5), the top of the pressing plate (21) is fixedly connected with a connecting shaft (22), the upper end of the connecting shaft (22) penetrates through the sealing cavity (5) and extends above the can cover (1) and is fixedly connected with a piston plate (23), and the outside of the piston plate (23) is connected with the lock buckle (7).
4. The food can lid having a self-locking function according to claim 3, characterized in that: The bottom of the inner cavity of the sealing cavity (5) is fixedly sleeved with a limiting ring (6), and the bottom of the pressing plate (21) abuts against the top of the limiting ring (6).
5. The food can lid having a self-locking function according to claim 4, characterized in that: A short shaft is fixedly connected between the top of the hard sealing plate (31) and the limiting ring (6), and the hard sealing plate (31) and the limiting ring (6) are fixedly connected through the short shaft.
6. The food can lid having a self-locking function according to claim 3, characterized in that: The lock buckle (7) comprises a fixed ring (71) fixedly connected to the top of the can cover (1), the outer surface of the fixed ring (71) is fixedly connected with a plurality of evenly distributed clamping grooves (72), the inside of the clamping groove (72) is rotatably clamped with a clamping block (73), and the outer surface of the clamping block (73) extends to the outside of the clamping groove (72) and is fixedly connected to the bottom of the inner cavity of the piston plate (23).