A closure structure and container

Abstract

The application provides a sealing structure and a container. The sealing structure comprises a container mouth 1, an inner plug inserted into the container mouth 1, an outer cover 3 outside the container mouth 1, a snap spring 5 in the outer cover 3, the snap spring 5 having an inner thread, a neck part outside the container mouth 1 being sleeved with a locking ring 6, the locking ring 6 having an outer thread, and the snap spring 5 being threadedly connected with the locking ring 6. The container mouth 1 and the inner plug can be made of ceramic material, and high-precision machining is used to realize mirror surface cooperation sealing. The locking ring 6 and the snap spring 5 can be provided with a lock catch to facilitate locking of the sealing. The container sealing structure of the application combines the inner plug and the outer cover, and takes into account the sealing property and the decorative property. The mirror surface cooperation realized by high-precision machining of the inner plug and the inner hole of the container plays a sealing role, and simplifies the sealing structure.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bottle, jar type container for liquid packaging, and particularly relates to the sealing structure of the container. BACKGROUND

[0002] Bottle, jar type container is widely used for liquid packaging, and its opening part usually needs reliable sealing. The packaging of some products such as high-grade wine not only needs to meet the sealing requirement, but also needs to have decorative effect. It usually adopts the way of inner sealing cover plus outer decorative cover to realize the double requirements of sealing and decoration. For this, there are many technical solutions in the prior art, but it is difficult for hard material to realize reliable sealing, and the inner sealing cover is usually made of high polymer flexible material, but the problem brought by it is that the high polymer material is easy to age and deteriorate, which not only affects the sealing effect, but also may pollute the content.

[0003] With the progress of material processing technology, the surface of some hard materials can be mated at low cost, and the liquid can be reliably sealed, such as ceramic material. The present application provides a sealing structure of hard material inner plug and inner wall of container mouth, which is particularly suitable for the sealing structure of ceramic container and ceramic inner plug cover, and can also be suitable for other hard materials. SUMMARY

[0004] The following describes the technical solution adopted by the present application to achieve its invention purpose. Since the container of the present application is a container adopting the sealing structure of the present application, the sealing structure and the container of the present application are described together.

[0005] A container comprises a sealing structure. The sealing structure comprises a container mouth, an inner plug inserted into the container mouth, an outer cover outside the container mouth, a snap spring in the outer cover, the snap spring having an inner thread, a neck part of the outer surface of the container mouth being sleeved with a locking ring, the locking ring having an outer thread, and the snap spring being threadedly connected with the locking ring.

[0006] As a preferred solution, the container mouth 1 and the inner plug are both made of ceramic material, and high-precision processing is adopted to realize mirror surface mating sealing. Further, the inner plug is a T-shaped inner plug, which is composed of an upper plug crown and a lower plug body.

[0007] As a preferred solution, the inner side of the upper edge of the container mouth has a recess, and the inner hole of the container mouth is a conical surface with a certain slope. The plug body of the T-shaped inner plug has a sealing ring groove near the plug crown, and the sealing ring groove has a sealing ring, which cooperates with the recess. The sealing ring only plays an auxiliary sealing role, and at the same time increases the friction force to prevent the inner plug from sliding. The plug body is a conical surface with a certain slope, which cooperates with the conical surface of the inner hole of the container mouth.

[0008] As a preferred solution, the outer side of the container mouth is a neck between the upper edge and the shoulder. The locking ring has a longitudinal locking ring opening, and the locking ring can be sleeved into the neck of the container mouth by pulling the locking ring apart. The neck of the container mouth and the surface of the locking ring have a concave-convex matching structure to prevent sliding. The concave-convex matching structure can be that the neck has one or more positioning holes, and the inner surface of the locking ring has one or more positioning columns, and the positioning holes and the positioning columns are matched.

[0009] As a preferred solution, the lower part of the outer cover has a snap spring slot, and the lower edge has a gap. The snap spring has a longitudinal snap spring opening, and the lower end has a locking catch I extending outward, and the locking catch I has a locking hole I. The snap spring is pressed (so that its diameter is reduced) and is clamped into the snap spring slot of the outer cover, and the locking catch I of the snap spring extends out of the gap of the outer cover. The locking ring has a longitudinal locking ring opening, and the lower end has a locking catch II extending outward, and the locking catch II has a locking hole II. The locking ring can be sleeved into the neck of the container mouth by moderately pulling the locking ring apart, the positioning columns and the positioning holes are matched to prevent the locking ring from sliding. The outer thread is matched with the inner thread, the locking catch I is matched with the locking catch II, the locking hole I and the locking hole II are aligned, and a padlock can be hung to lock and close the seal.

[0010] The container seal structure of the present application combines the inner plug and the outer cover, and takes into account the sealing and decorative properties. The mirror surface matching achieved by high-precision processing of the inner plug and the inner hole of the container plays a sealing role and simplifies the seal structure. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1a is a cross-sectional schematic diagram of the present application;

[0012] Figure 1b is an exploded schematic diagram of the seal structure of the present application;

[0013] Figure 2a is a cross-sectional schematic diagram of the container mouth in the present application;

[0014] Figure 2b is a three-dimensional schematic diagram of the container mouth in the present application;

[0015] Figure 3a is a front view schematic diagram of the inner plug in the present application;

[0016] Figure 3b is a three-dimensional schematic diagram of the inner plug in the present application;

[0017] Figure 4a is a cross-sectional schematic diagram of the outer cover in the present application;

[0018] Figure 4b is a three-dimensional schematic diagram of the outer cover in the present application;

[0019] Figure 5a is a cross-sectional schematic diagram of the snap spring in the present application;

[0020] Figure 5bis a perspective view of the snap spring in the present application;

[0021] Figure 6a is a side view of the locking buckle in the present application;

[0022] Figure 6b is a perspective view of the locking buckle in the present application.

[0023] In the figure: 1. container mouth, 11. upper edge, 12. neck, 13. shoulder, 14. positioning hole, 15. recess; 2. T-shaped inner plug, 21. plug crown, 22. plug body, 23. sealing ring groove; 3. outer cover, 31. snap spring groove, 32. notch; 4. sealing ring; 5. snap spring, 51. internal thread, 52. snap spring opening, 53. locking buckle I, 54. locking hole I; 6. locking ring, 61. external thread, 62. locking ring opening, 63. positioning column, 64. locking buckle II, 65. locking hole II. DETAILED DESCRIPTION

[0024] The technical solutions of the present application are described in detail below in combination with the drawings.

[0025] As shown in Figure 1a and Figure 1b , a container includes a sealing structure. The sealing structure includes a container mouth 1, a T-shaped inner plug 2 inserted into the container mouth, an outer cover 3 outside the container mouth, a snap spring 5 in the outer cover 3, a locking ring 6 sleeved on the neck 12 outside the container mouth, and the snap spring 5 and the locking ring 6 are threadedly connected.

[0026] As shown in Figure 2a and Figure 2b , the container mouth 1 includes an upper edge 11 at the upper part, a shoulder 13 at the lower part outside, a neck 12 between the upper edge 11 and the shoulder 13 outside, the neck has one or more positioning holes 14, and the inner side of the upper edge 11 has a recess 15. The inner hole of the container mouth is a tapered surface with a certain slope.

[0027] As shown in Figure 3a and Figure 3b , the T-shaped inner plug 2 is composed of a plug crown 21 at the upper part and a plug body 22 at the lower part. The plug body 22 has a sealing ring groove 23 close to the plug crown 21. The plug body 22 is a tapered surface with a certain slope. In combination with Figure 2a and Figure 2b and Figure 1a , the plug body 22 cooperates with the inner hole of the container mouth, the sealing ring groove 23 is provided with a sealing ring 4 and cooperates with the recess 15. The container mouth 1 and the inner plug 2 can be made of ceramic material and processed by a high-precision grinding machine to a sealing level. The sealing ring 4 plays an auxiliary sealing role and increases the friction force to prevent the inner plug 2 from sliding.

[0028] As shown in Figure 4a and Figure 4bAs shown, the lower part of the outer cover 3 has a snap spring slot 31, and the lower edge has a gap 32.

[0029] As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54. Figure 5a Figure 5b As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54. Figure 4a Figure 4b As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54. Figure 1a As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54.

[0030] Figure 6a As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54. Figure 6b Figure 5a As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54. Figure 5b Figure 1a As shown, the snap spring 5 has an inner thread 51, a longitudinal through snap spring opening 52, and an outwardly extending lock catch I 53 at the lower end, the lock catch I 53 having a lock hole I 54.

[0031] The sealing method of the container mouth of the present application is as follows: the snap spring 5 is clamped into the snap spring slot 31 of the outer cover 3, the locking ring 6 is sleeved into the neck 12 of the container mouth 1, and the sealing ring 4 is sleeved into the sealing ring slot 23 of the T-shaped inner plug 2; the T-shaped inner plug 2 is inserted into the inner hole of the container mouth, the outer cover 3 is covered and tightened, the snap spring 5 is pressed against the inner plug 2, the lock hole I 54 and the lock hole II 65 are aligned, and the lock is added.​​​​​

Claims

1. A closure structure, characterized by: The application relates to a container mouth (1), an inner plug inserted into the container mouth (1), an outer cover (3) outside the container mouth (1), a snap spring (5) in the outer cover (3), the snap spring (5) having an inner thread (51), a neck part of an outer surface of the container mouth (1) being sleeved with a locking ring (6), the locking ring (6) having an outer thread (61), the snap spring (5) being threadedly connected with the locking ring (6); an outer side surface of the container mouth (1) is a neck part (12) between an upper edge (11) and a shoulder part (13), the locking ring (6) has a longitudinal locking ring opening (62), and the locking ring (6) is sleeved on the neck part (12) of the container mouth (1); the neck part (12) of the container mouth (1) and a surface of the locking ring (6) have a concave-convex matching structure for preventing sliding; a lower part of the outer cover (3) has a snap spring groove (31), the snap spring (5) has a longitudinal snap spring opening (52), and the snap spring (5) is clamped in the snap spring groove (31) of the outer cover (3).

2. The closure structure of claim 1, wherein: The container mouth (1) and the inner plug are both made of ceramic material and are matched in a mirror surface to be sealed.

3. The closure structure of claim 2, wherein: The inner plug is a T-shaped inner plug (2) which is composed of an upper plug crown (21) and a lower plug body (22).

4. The closure structure of claim 3, wherein: The container mouth (1) has an upper edge (11), the inner side of the upper edge (11) has a concave platform (15), and the inner hole of the container mouth (1) is a conical surface; the plug body (22) of the T-shaped inner plug (2) has a sealing ring groove (23) close to the plug crown (21), and the sealing ring groove (23) has a sealing ring (4); the sealing ring (4) is matched with the concave platform (15); and the plug body (22) is a conical surface matched with the conical surface of the inner hole of the container mouth (1).

5. The closure of claim 1, wherein: The concave-convex matching structure is that the neck part (12) of the container mouth (1) has one or more positioning holes (14), the inner surface of the locking ring (6) has one or more positioning columns (63), and the positioning holes (14) and the positioning columns (63) are matched.

6. The closure of claim 1, wherein: The lower edge of the snap spring groove (31) has a gap (32), the lower end of the snap spring (5) has a lock catch I (53) extending to the outside, the lock catch I (53) has a lock hole I (54) thereon, and the lock catch I (53) extends out of the gap (32) of the outer cover (3); the locking ring (6) has a longitudinal locking ring opening (62), the lower end of the locking ring (6) has a lock catch II (64) extending to the outside, and the lock catch II (64) has a lock hole II (65) thereon; the lock catch I (53) is matched with the lock catch II (64), and the lock hole I (54) and the lock hole II (65) are aligned.

7. A container characterized by: The container mouth structure is one of the container mouth structures as claimed in claims 1 to 6.

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