Ring-free can structure of round can

Abstract

The utility model provides a ring-free can structure of a round can, which enables an upper end cover and a can body to be reliably sealed and matched for multiple times, and a handle of the can body is quick and convenient to install and simple in manufacturing process. The tank comprises a tank body, an upper end cover and a handle, and is characterized in that an outer ring of the upper end cover comprises an inner-layer cylindrical ring edge and an outer-layer sealing ring edge, the lower end of the inner-layer cylindrical ring edge and the lower end of the outer-layer sealing ring edge are in transition through a lower groove of an arc edge, and the outer-layer sealing ring edge is provided with an outwards-protruding lock catch protrusion and an outwards-protruding stop winding wire from bottom to top; an annular inverted-U-shaped elastic piece is arranged in a cavity between the inner layer cylindrical ring edge and the outer sealing ring edge, the inner elastic straight edge of the inverted-U-shaped elastic piece is tightly attached to the middle position of the outer ring face of the inner layer cylindrical ring edge in the height direction, and the outer elastic straight edge of the inverted-U-shaped elastic piece is tightly attached to the middle position of the inner ring face of the outer sealing ring edge in the height direction. And the upper end part of the can body is provided with an upward convex annular positioning edge, an outward convex lock catch groove and an outward convex coil from bottom to top.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing round can, specifically is round can no ring can structure. BACKGROUND

[0002] The structure of the existing water-based and oil-based packing round can includes a can body, an upper end cover and a lifting beam, the can body and the upper end cover are sealed through a sealing fold line structure, the assembly of the lifting beam needs to weld lugs, thereby making the assembly of the lifting beam time-consuming and laborious, and since the can body and the upper end cover are only sealed through the sealing fold line structure and glue, once the upper end cover is opened, the reliable sealing of the upper end cover after resealing cannot be ensured, therefore, it is urgent to develop a round can structure that can ensure the reliable sealing of the upper end cover on the can body after multiple openings. SUMMARY

[0003] In view of the above problems, the utility model provides a round can no ring can structure, which can reliably seal the upper end cover and the can body multiple times, and the lifting beam of the can body is quick and convenient to install and simple to manufacture.

[0004] The round can no ring can structure has the technical scheme that it includes a can body, an upper end cover and a lifting beam, and is characterized by:

[0005] The outer ring of the upper end cover includes an inner cylindrical ring edge and an outer sealing ring edge, the lower end of the inner cylindrical ring edge is transitioned to the lower end of the outer sealing ring edge through a circular arc edge lower groove, the outer sealing ring edge is provided with an outer convex locking buckle protrusion and an outer convex stop coil line from bottom to top, a cavity between the inner cylindrical ring edge and the outer sealing ring edge is provided with a ring-shaped inverted U-shaped spring piece, the inner elastic straight edge of the inverted U-shaped spring piece is close to the height direction middle position of the outer surface of the inner cylindrical ring edge, the outer elastic straight edge of the inverted U-shaped spring piece is close to the height direction middle position of the inner surface of the outer sealing ring edge, the upper end of the can body is provided with an upper convex ring-shaped positioning edge, an outer convex locking groove and an outer convex coil line from bottom to top.

[0006] The outer convex locking buckle protrusion is embedded in the outer convex locking groove in the sealed state, the outer convex stop coil line is arranged above the outer convex coil line, the space cavity formed by the combination of the outer convex stop coil line and the outer convex coil line is filled with sealing glue, and the outer elastic straight edge of the inverted U-shaped spring piece drives the outer sealing ring edge to be close to the corresponding inner convex area of the outer convex coil line.

[0007] The plastic sleeve is fitted on the can body, the upper end of the plastic sleeve is fitted with the lower end stopper of the upper convex ring-shaped positioning edge, the upper convex ring-shaped positioning edge enhances the strength of the can body and stops the upper part of the plastic sleeve, the inner wall of the plastic sleeve is fitted on the outer wall of the can body, the two ends of the plastic sleeve relative to the diameter of the can body are provided with the side convex positioning protrusions, and the two ends of the lifting beam are respectively fixed on the corresponding positioning protrusions.

[0008] It is further characterized in that:

[0009] The bottom of the upper convex ring-shaped positioning edge comprises an outer arc-shaped transition, a stopper straight edge and an inner arc-shaped transition, the top inner end of the plastic sleeve is provided with a profiled adaptive edge corresponding to the stopper straight edge and the inner arc-shaped transition, the profiled adaptive edge is arranged close to the stopper straight edge and the inner arc-shaped transition, and the stable and reliable installation of the plastic sleeve is ensured.

[0010] The outer side upper end of the circular arc edge lower groove and the lower end of the outer convex lock catch protrusion are in a cylindrical edge straight line transition, a lower cylindrical edge straight line and an upper outer expansion circular arc edge are arranged between the upper end of the outer convex lock catch protrusion and the inner end of the outer convex stopper coil, the outer end of the upper outer expansion circular arc edge is connected to the upper inner end of the outer convex stopper coil, and the outer convex stopper coil and the lower cylindrical edge straight line and the upper outer expansion circular arc edge form a sealing glue cavity.

[0011] The upper end of the upper convex ring-shaped positioning edge and the lower end of the outer convex lock catch groove are in a cylindrical edge straight line transition, and the upper end of the outer convex lock catch groove and the lower end of the outer convex coil are in a cylindrical edge straight line transition.

[0012] In the sealing state, the cylindrical edge straight line of the upper end of the outer convex lock catch groove and the lower end of the outer convex coil is close to the lower section of the lower cylindrical edge straight line, so that the sealing of the whole structure is ensured.

[0013] The positioning protrusion comprises an inner side sleeve positioning portion and an outer side locking portion, the inner side sleeve positioning portion is a small-diameter portion, and the outer side locking portion is a large-diameter portion, any end of the lifting beam is provided with a positioning hole, the positioning hole is sleeved on the inner side sleeve positioning portion after penetrating through the outer side locking portion, the hole diameter of the positioning hole is smaller than the diameter of the outer side locking portion, and the stable installation of the lifting beam is ensured.

[0014] The outer ring surface of the can body corresponding to the upper convex ring-shaped positioning edge and the outer convex lock catch groove is further provided with a reinforcing protrusion ring edge, so that the strength of the can body is ensured.

[0015] When the upper end cover is opened by external force, the outer convex locking buckle protrusion is deformed, and the sealing glue loses the sealing function, at this time, when the upper end cover is covered again, the inverted U-shaped elastic sheet drives the outer sealing ring edge to tightly abut the corresponding inner convex area of the outer convex winding, effective sealing is completed, the upper end of the plastic sleeve is located at the lower end position of the upper convex annular positioning edge, the upper convex annular positioning edge enhances the strength of the tank body on the one hand and completes the upper stop of the plastic sleeve on the other hand, the plastic sleeve is provided with a side convex positioning protrusion at the two end positions of one diameter of the tank body, and the two ends of the lifting beam are respectively fixed to the positioning protrusions at the corresponding positions, so that the whole structure no longer needs to be welded with lug, and the lifting beam can be quickly assembled, and the upper end cover and the tank body can be reliably sealed and matched for multiple times, the lifting beam of the tank body is quickly and conveniently installed, and the manufacturing process is simple. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a front view structural schematic diagram (the upper end cover is not buckled on the tank body) of the utility model;

[0017] Fig. 2 It is a partial enlarged structural schematic diagram of the upper end cover buckled on one side of the upper end of the tank body;

[0018] Fig. 3 It is a partial enlarged structural schematic diagram of the positioning protrusion of the plastic sleeve;

[0019] The names corresponding to the serial numbers in the drawing are as follows:

[0020] Tank body 1, upper end cover 2, lifting beam 3, inner layer cylindrical ring edge 4, outer layer sealing ring edge 5, circular arc edge lower groove, outer convex locking buckle protrusion 7, outer convex stop winding 8, upper convex annular positioning edge 9, outer side arc-shaped transition 91, stop straight edge 92, inner side arc-shaped transition 93, outer convex locking buckle groove 10, outer convex winding 11, sealing glue 12, plastic sleeve 13, profiled adaptive edge 131, positioning protrusion 14, lower cylindrical edge straight line 15, upper outer expansion circular arc edge 16, inner side sleeve positioning position 17, outer side locking part 18, positioning hole 19, reinforcing protrusion ring edge 20, elastic sheet stop inner concave circular arc 21, inverted U-shaped elastic sheet 30, inner elastic straight edge 31, outer elastic straight edge 32. PREFERRED EMBODIMENT

[0021] The circular tank without a ring tank structure is shown in Figs. 1-3 : it comprises a tank body 1, an upper end cover 2 and a lifting beam 3, the outer ring of the upper end cover 2 comprises an inner layer cylindrical ring edge 4 and an outer layer sealing ring edge 5, the lower end of the inner layer cylindrical ring edge 4 and the lower end of the outer layer sealing ring edge 5 are transitioned through a circular arc edge lower groove 6, the outer layer sealing ring edge 5 is provided with an outer convex locking buckle protrusion 7 and an outer convex stop winding 8 from top to bottom,

[0022] The cavity between the inner cylindrical ring edge 4 and the outer sealing ring edge 5 is provided with a ring-shaped inverted U-shaped spring 30, the inner elastic straight edge 31 of the inverted U-shaped spring 30 is tightly attached to the middle position of the height direction of the outer ring surface of the inner cylindrical ring edge 4, and the outer elastic straight edge 32 of the inverted U-shaped spring 30 is tightly attached to the middle position of the height direction of the inner ring surface of the outer sealing ring edge 5;

[0023] The upper end of the can body 1 is provided from bottom to top with an upper convex ring-shaped positioning edge 9, an outer convex locking groove 10, and an outer convex winding 11, the outer convex locking protrusion 7 in the sealed state is embedded in the outer convex locking groove 10, the outer convex stop winding 8 is arranged above the outer convex winding 11, the space cavity formed by the outer convex stop winding 8 and the outer convex winding 11 is filled with sealing glue 12, and the outer elastic straight edge 32 of the inverted U-shaped spring 30 drives the outer sealing ring edge 5 to tightly attach to the corresponding inner convex area of the outer convex winding 11.

[0024] The can body is sleeved with a plastic sleeve 13, the upper end of the plastic sleeve 13 is located at the lower end position of the upper convex ring-shaped positioning edge 9, the upper convex ring-shaped positioning edge 9 enhances the strength of the can body 1 and completes the upper stop of the plastic sleeve 13, the inner wall of the plastic sleeve 13 is attached to the outer wall of the can body 1, the plastic sleeve 13 is provided with a side convex positioning protrusion 14 at the two end positions of one diameter of the can body 1, and the two ends of the lifting beam 3 are respectively fixed to the corresponding positioning protrusions 14.

[0025] The outer side upper end of the circular arc edge lower groove 6 and the lower end of the outer convex locking protrusion 7 are linearly transitioned by a cylindrical edge, the upper end of the outer convex locking protrusion 7 and the inner end of the outer convex stop winding 8 are provided with a lower cylindrical edge 15 and an upper outer expanding circular arc edge 16, the outer end of the upper outer expanding circular arc edge 16 is connected to the upper inner end of the outer convex stop winding 8, a sealing glue cavity is formed between the outer convex stop winding 8 and the lower cylindrical edge 15 and the upper outer expanding circular arc edge 16, and the sealing glue cavity is filled with sealing glue 12.

[0026] In specific implementation, the upper part of the outer convex locking protrusion 7 is further provided with a spring stop inner concave circular arc 21, the bottom of the outer elastic straight edge 32 of the inverted U-shaped spring 30 is positioned at the upper end position of the spring stop inner concave circular arc 21, and the insertion position of the inverted U-shaped spring 30 is stable and reliable.

[0027] In specific implementation, the bottom of the upper convex ring-shaped positioning edge 9 includes an outer side arc-shaped transition 91, a stop straight edge 92, and an inner side arc-shaped transition 93, the top inner end of the plastic sleeve 13 is provided with a profiled adaptive edge 131 corresponding to the stop straight edge 92 and the inner side arc-shaped transition 93, the profiled adaptive edge 131 is arranged tightly attached to the stop straight edge 92 and the inner side arc-shaped transition 93, and the stable and reliable installation of the plastic sleeve 13 is ensured.

[0028] In the embodiment, the upper end of the upper convex annular positioning edge 9 and the lower end of the outer convex locking groove 10 are linearly connected by a cylindrical edge, and the upper end of the outer convex locking groove 10 and the lower end of the outer convex winding line 11 are linearly connected by a cylindrical edge;

[0029] In the sealed state, the cylindrical edge linearly connecting the upper end of the outer convex locking groove 10 and the lower end of the outer convex winding line 11 is tightly connected to the lower section of the lower cylindrical edge linear 15, thereby ensuring the sealing of the whole structure.

[0030] The positioning convex 14 comprises an inner side sleeving positioning part 17 and an outer side locking part 18, the inner side sleeving positioning part 17 is a small-diameter part, and the outer side locking part 18 is a large-diameter part. The lifting beam 3 is provided with a positioning hole 19 at either end, the positioning hole 19 is sleeved in the inner side sleeving positioning part 17 after penetrating through the outer side locking part 18, and the diameter of the positioning hole 19 is smaller than the diameter of the outer side locking part 18, thereby ensuring the stable installation of the lifting beam 3.

[0031] The outer annular surface of the can body 1 corresponding to the upper convex annular positioning edge 9 and the outer convex locking groove 10 is further provided with a reinforcing convex ring edge 20, thereby ensuring the strength of the can body 1.

[0032] The working principle is as follows: when the upper end cover is opened by an external force, the outer convex locking convex is deformed, and the sealing glue loses the sealing function. When the upper end cover is covered again, the inverted U-shaped elastic sheet drives the outer sealing ring edge to tightly contact the corresponding inner convex area of the outer convex winding line, thereby completing effective sealing. The upper end of the plastic sleeve is located at the lower end of the upper convex annular positioning edge. The upper convex annular positioning edge enhances the strength of the can body and completes the upper stop of the plastic sleeve. The plastic sleeve is provided with a side convex positioning convex at the position of the two ends of the diameter of the can body. The two ends of the lifting beam are respectively fixed to the positioning convexes at the corresponding positions, so that the whole structure no longer needs to be welded with a lug, and the lifting beam can be quickly assembled. In summary, the upper end cover and the can body can be reliably sealed and matched multiple times, the lifting beam of the can body can be quickly and conveniently installed, and the manufacturing process is simple.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0034] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A round, ringless can structure, comprising a can body, an upper cover, and a lifting beam, characterized in that: The outer ring of the upper end cap includes an inner cylindrical ring edge and an outer sealing ring edge. The lower ends of the inner cylindrical ring edge and the outer sealing ring edge are connected by a circular arc edge groove. The outer sealing ring edge is provided with an outwardly protruding locking protrusion and an outwardly protruding stop coil from bottom to top. An annular inverted U-shaped spring is provided in the cavity between the inner cylindrical ring edge and the outer sealing ring edge. The inner elastic straight edge of the inverted U-shaped spring is close to the middle position of the height direction of the outer ring surface of the inner cylindrical ring edge, and the outer elastic straight edge of the inverted U-shaped spring is close to the middle position of the height direction of the inner ring surface of the outer sealing ring edge. The upper end of the can body is provided with an upwardly protruding annular positioning edge, an outwardly protruding locking groove, and an outwardly protruding coil from bottom to top. In the sealed state, the protruding buckle protrusion is embedded in the protruding buckle groove, the protruding stop coil is arranged above the protruding coil, the space cavity formed by the combination of the protruding stop coil and the protruding coil is filled with sealant, and the outer elastic straight edge of the inverted U-shaped spring piece drives the outer sealing ring edge to closely adhere to the corresponding inner protruding area of ​​the protruding coil. A plastic sleeve is fitted onto the can body. The upper end of the plastic sleeve is attached to the lower stop edge of the upper convex annular positioning edge. The upper convex annular positioning edge enhances the strength of the can body and stops the upper part of the plastic sleeve. The inner wall of the plastic sleeve is attached to the outer wall of the can body. The plastic sleeve has lateral convex positioning protrusions at both ends relative to one of the diameters of the can body. The two ends of the lifting beam are respectively fixed to the positioning protrusions at the corresponding positions.

2. The ringless cylindrical can structure according to claim 1, characterized in that: The bottom of the convex annular positioning edge includes an outer arc transition, a stop straight edge, and an inner arc transition. The top inner end of the plastic sleeve is provided with a contour-fitting edge corresponding to the stop straight edge and the inner arc transition. The contour-fitting edge is arranged closely to the stop straight edge and the inner arc transition.

3. The circular can without a ring structure according to claim 2, characterized in that: The upper outer end of the lower groove of the arc edge and the lower end of the protruding buckle are transitioned by a cylindrical straight line. A lower cylindrical straight line and an upper outward arc edge are provided between the upper end of the protruding buckle and the inner end of the protruding stop coil. The outer end of the upper outward arc edge is connected to the upper inner end of the protruding stop coil. A sealing cavity is formed between the protruding stop coil, the lower cylindrical straight line, and the upper outward arc edge.

4. The ringless cylindrical can structure according to claim 3, characterized in that: The upper end of the convex annular positioning edge and the lower end of the convex locking groove are cylindrical with a straight transition, and the upper end of the convex locking groove and the lower end of the convex coil are cylindrical with a straight transition.

5. The circular can without a ring structure according to claim 4, characterized in that: In the sealed state, the upper end of the protruding locking groove and the lower end of the protruding coil have their cylindrical edges in close contact with the lower section of the lower cylindrical edge.

6. The ringless cylindrical can structure according to claim 1, characterized in that: The positioning protrusion includes an inner fitting positioning part and an outer locking part. The inner fitting positioning part is a small diameter part, and the outer locking part is a large diameter part. A positioning hole is provided at either end of the lifting beam. The positioning hole passes through the outer locking part and fits into the inner fitting positioning part. The diameter of the positioning hole is smaller than the diameter of the outer locking part.

7. The ringless cylindrical can structure according to claim 5, characterized in that: The outer ring surface of the tank body corresponding to the upper convex annular positioning edge and the outer convex locking groove is also provided with a reinforcing convex annular edge.

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