A sealed pail closure assembly

Abstract

This utility model discloses a sealing bucket lid assembly, including a lid body and a lid ring. The lid body has a downwardly extending vertical ring plate at its edge and an outwardly extending annular flange plate from the top of the vertical ring plate. The outer side wall of the vertical ring plate has external threads. The lid ring has an inverted U-shaped structure and includes an inner ring plate and an outer ring plate. An installation groove for mounting to the upper edge of the bucket body is formed between the inner and outer ring plates. The inner side wall of the inner ring plate has an internal thread for threaded engagement and sealing with the external threads. The top of the lid ring has a top surface that mates with the annular flange plate, and a first sealing ring is provided between the top surface and the annular flange plate. A second sealing ring is provided at the top of the installation groove. This utility model has the advantage of good sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of barrel lid technology, and in particular to a sealing barrel lid assembly. Background Technology

[0002] Currently, various types of barrels are widely used in fields requiring long-term storage, such as food, chemicals, and agriculture. As a crucial component of the barrel, the sealing performance of the lid directly affects the quality and shelf life of the contents. Existing barrel lid designs have certain shortcomings in sealing performance. Specifically, traditional lids typically employ simple press-fit or snap-fit ​​structures with few and simple sealing components, making them susceptible to external environmental influences such as temperature and humidity changes, leading to seal failure and leakage or spoilage of the contents. Furthermore, due to long-term exposure to pressure, friction, or chemical corrosion, the sealing components of the lid are prone to wear or loss of elasticity, resulting in a gradual decline in sealing performance.

[0003] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a sealing barrel lid assembly with good sealing performance.

[0005] This utility model is achieved through the following technical solution:

[0006] To solve the above-mentioned technical problems, this utility model provides a sealing bucket lid assembly, including a lid body and a lid ring. The edge of the lid body is provided with a downwardly extending vertical ring plate and an eave plate extending outward from the top of the vertical ring plate. The outer side wall of the vertical ring plate is provided with external threads. The lid ring has an inverted U-shaped structure and includes an inner ring plate and an outer ring plate. An installation groove for mounting with the upper edge of the bucket body is formed between the inner ring plate and the outer ring plate. The inner side wall of the inner ring plate is provided with an internal thread for threading and sealing with the external threads. The top of the lid ring is provided with a top surface that can mate with the eave plate, and a first sealing ring is provided between the top surface and the eave plate. A second sealing ring is provided at the top of the installation groove.

[0007] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a sealing barrel cover assembly in which a sealing ring receiving groove for accommodating a first sealing ring is provided on the top plane, and the circumferential plate presses down on the first sealing ring from top to bottom.

[0008] In order to further solve the technical problem to be solved by this utility model, the sealing barrel cover assembly provided by this utility model has an upwardly extending limiting step surface on the outer edge of the top plane, and the limiting step surface can cooperate with the outer end face of the eaves plate.

[0009] To further address the technical problems to be solved by this utility model, the present utility model provides a sealing barrel cover assembly in which both the external thread and the internal thread are sawtooth threads, and the upper side of the external thread is a plane and the lower side is an inclined plane, while the upper side of the internal thread is an inclined plane and the lower side is a plane.

[0010] In order to further solve the technical problem to be solved by this utility model, in the sealing barrel lid assembly provided by this utility model, an annular limiting boss is provided on the inner side wall of the outer ring plate, and the upper side of the limiting boss is a steep surface and the lower side is a gentle surface.

[0011] To further address the technical problems to be solved by this utility model, the present utility model provides a sealing barrel lid assembly in which the lower part of the outer ring plate is inclined outward and extends downward, and the outer ring plate is elastic.

[0012] In order to further solve the technical problem to be solved by this utility model, the sealing barrel lid assembly provided by this utility model has a plurality of torsion grooves on the top surface of the lid body, and torsion ribs are formed between adjacent torsion grooves.

[0013] To further solve the technical problem to be solved by this utility model, in the sealing barrel lid assembly provided by this utility model, the back side of the torsion groove is a downwardly protruding part, each of the lower protrusions is evenly distributed around the center of the lid body, a connecting plate is provided between the outer sides of adjacent lower protrusions, and a number of reinforcing ribs are provided between the vertical ring plate and the outer side of the corresponding lower protrusion or the connecting plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model has a multi-seal structure. By setting a first sealing ring between the cover body and the cover ring, forming a thread seal between the external and internal threads, and setting a second sealing ring in the mounting groove, a triple seal is achieved, which significantly improves the reliability of the seal and effectively prevents leakage of substances inside the barrel.

[0016] 2. This utility model adopts a sawtooth thread structure. This structure optimizes the bearing side angle of the thread, enabling the thread to better transmit force when bearing load, thereby improving load-bearing capacity and sealing performance.

[0017] 3. In this utility model, the twisted groove and twisted rib design on the top surface of the lid increases the friction between the user's hand and the lid, making the opening and closing of the lid more effortless and convenient. The lower protrusion, connecting plate, and reinforcing ribs on the back of the lid effectively improve the overall structural strength of the lid, ensuring the stability and durability of the lid during long-term use. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover;

[0023] Figure 5 This is a schematic diagram of the usage state of this utility model;

[0024] Figure 6 yes Figure 5 A magnified view of a portion of point B in the middle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Please refer to Figures 1 to 6 This embodiment discloses a sealing bucket lid assembly, which includes a lid body 1 and a lid ring 2, which work together to achieve a reliable seal on the bucket body.

[0027] A downward-extending vertical ring plate 11 is provided at the edge of the lid 1. The main function of the vertical ring plate 11 is to form a threaded connection with the lid ring 2, thereby fixing the lid 1 to the barrel body. To achieve this function, an external thread 111 is provided on the outer side wall of the vertical ring plate 11.

[0028] The cover ring 2 has an inverted U-shaped structure, including an inner ring plate 21 and an outer ring plate 22. An installation groove 23 is formed between the inner ring plate 21 and the outer ring plate 22, which is used for installation and fixation with the upper edge of the barrel.

[0029] In order to achieve reliable threaded connection and sealing, an internal thread 211 is provided on the inner sidewall of the inner ring plate 21. The internal thread 211 cooperates with the external thread 111 on the cover 1 to form a second sealing structure.

[0030] Meanwhile, an eaves plate 12 extends outward from the top of the vertical ring plate 11. The top of the cover ring 2 is provided with a top surface 24, which can fit tightly with the eaves plate 12. In order to further enhance the sealing effect, a first sealing ring 3 is provided between the top surface 24 and the eaves plate 12 to form a first sealing structure.

[0031] In addition, a second sealing ring 4 is provided at the top inner part of the mounting groove 23. When the cover ring 2 is installed with the upper edge of the barrel, the second sealing ring 4 can provide an additional sealing effect, forming a third sealing structure.

[0032] To achieve multiple seals, this invention employs a three-layer sealing structure. The first sealing structure is formed by a first sealing ring 3 between the top plane 24 and the annular plate 12; the second sealing structure is formed by the threaded engagement between the external thread 111 and the internal thread 211; and the third sealing structure is formed by a second sealing ring 4 in the mounting groove 23. These three sealing structures work together to ensure the sealing performance of the lid assembly.

[0033] To ensure the positioning and compression effect of the first sealing ring 3, a sealing ring receiving groove 241 is provided on the top plane 24, and the first sealing ring 3 is accommodated in the sealing ring receiving groove 241. When the annular plate 12 presses down on the first sealing ring 3 from top to bottom, the first sealing ring 3 deforms, thereby achieving a seal.

[0034] To limit the radial movement of the eaves plate 12, an upwardly extending limiting step surface 242 is provided on the outer edge of the top plane 24. The limiting step surface 242 cooperates with the outer end face of the eaves plate 12 to prevent the eaves plate 12 from undergoing lateral displacement, thereby ensuring the sealing effect.

[0035] like Figure 3 As shown, to improve the load-bearing capacity and sealing performance of the threaded connection, both the external thread 111 and the internal thread 211 employ sawtooth-shaped threads. Specifically, the upper surface of the external thread 111 is a plane, and the lower surface is a bevel; the upper surface of the internal thread 211 is a bevel, and the lower surface is a plane. This thread structure optimizes the load-bearing side angle of the thread, enabling it to better transmit force when under load, thereby improving load-bearing capacity and sealing performance.

[0036] To reliably secure the cap ring 2 to the barrel body, an annular limiting protrusion 221 is provided on the inner side wall of the outer ring plate 22. For example... Figure 6 As shown, the limiting boss 221 can engage with the outward-flared edge of the upper edge of the barrel to form a locking mechanism. To facilitate the installation and removal of the cover ring 2, as... Figure 3 As shown, the upper side of the limiting boss 221 is a steep surface 2211, and the lower side is a gentle surface 2212. When the cover ring 2 is installed on the barrel, the gentle surface 2212 can guide the limiting boss 221 to slide over the outer flange of the upper edge of the barrel; when the cover ring 2 needs to be removed, the steep surface 2211 can provide sufficient resistance to prevent the cover ring 2 from accidentally falling off.

[0037] To facilitate the installation and removal of the cover ring 2, the lower part of the outer ring plate 22 is inclined outward and downward, and the outer ring plate 22 has a certain degree of elasticity. This design allows the outer ring plate 22 to undergo a certain deformation during installation and removal, thus facilitating operation.

[0038] To facilitate the user's rotation of the cover 1, several torsion grooves 13 are provided on the top surface of the cover 1, and torsion ribs 14 are formed between adjacent torsion grooves 13. The torsion grooves 13 and torsion ribs 14 can increase the friction between the user's hand and the cover 1, thereby facilitating the user's rotation of the cover 1.

[0039] like Figure 4 As shown, to improve the structural strength of the cover 1, a downwardly protruding lower protrusion 15 is formed on the back side of the torsion groove 13. Each lower protrusion 15 is evenly distributed around the center of the cover 1, and a connecting plate 16 is provided between the outer surfaces of adjacent lower protrusions 15. Furthermore, several reinforcing ribs 17 are provided between the vertical ring plate 11 and the outer surfaces of the corresponding lower protrusions 15 or between the connecting plates 16, which can further improve the structural strength of the cover 1.

[0040] Through the above design, this embodiment provides a sealing barrel lid assembly with good sealing performance, high structural strength, and convenient operation.

Claims

1. A sealing bucket lid assembly, characterized in that: The cover includes a cover body (1) and a cover ring (2). The cover body (1) has a downwardly extending vertical ring plate (11) at its edge and an eave plate (12) extending outward from the top of the vertical ring plate (11). The outer side wall of the vertical ring plate (11) is provided with an external thread (111). The cover ring (2) has an inverted U-shaped structure and includes an inner ring plate (21) and an outer ring plate (22). An installation groove (23) for installation with the upper edge of the barrel is formed between the inner ring plate (21) and the outer ring plate (22). The inner side wall of the inner ring plate (21) is provided with an internal thread (211) for thread engagement and sealing with the external thread (111). The top of the cover ring (2) is provided with a top surface (24) that can engage with the eave plate (12). A first sealing ring (3) is provided between the top surface (24) and the eave plate (12). A second sealing ring (4) is provided at the top of the installation groove (23).

2. A sealing bucket lid assembly according to claim 1, characterized in that: The top plane (24) is provided with a sealing ring receiving groove (241) for accommodating the first sealing ring (3), and the circumferential plate (12) presses down on the first sealing ring (3) from top to bottom.

3. A sealing bucket lid assembly according to claim 2, characterized in that: The outer edge of the top plane (24) is provided with an upwardly extending limiting step surface (242), and the limiting step surface (242) can cooperate with the outer end surface of the eaves plate (12).

4. A sealing bucket lid assembly according to claim 1, characterized in that: Both the external thread (111) and the internal thread (211) are sawtooth threads, and the upper side of the external thread (111) is a plane and the lower side is an inclined plane, while the upper side of the internal thread (211) is an inclined plane and the lower side is a plane.

5. A sealing barrel lid assembly according to claim 1, characterized in that: The inner wall of the outer ring plate (22) is provided with an annular limiting boss (221), the upper side of the limiting boss (221) is a steep surface (2211) and the lower side is a gentle surface (2212).

6. A sealing barrel lid assembly according to claim 1, characterized in that: The lower part of the outer ring plate (22) is inclined outward and downward, and the outer ring plate (22) is elastic.

7. A sealing barrel lid assembly according to claim 1, characterized in that: The top surface of the cover (1) is provided with several torsion grooves (13), and torsion ribs (14) are formed between adjacent torsion grooves (13).

8. A sealing barrel lid assembly according to claim 7, characterized in that: The back of the torsion groove (13) is a downwardly protruding lower protrusion (15). Each of the lower protrusions (15) is evenly distributed around the center of the cover (1). A connecting plate (16) is provided between the outer sides of adjacent lower protrusions (15). Several reinforcing ribs (17) are provided between the vertical ring plate (11) and the outer side of the corresponding lower protrusion (15) or the connecting plate (16).

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