Removable closure for a plastic container

Abstract

The utility model belongs to the technical field of plastic container, concretely is detachable sealing device of plastic container, including plastic bottle and spiral bottle mouth, spiral bottle mouth is integrally formed at the top of plastic bottle, spiral bottle mouth is spirally connected with sealed bottle cap, the bottom surface of spiral bottle mouth outer wall is integrally formed with the limiting ring, the bottom of sealed bottle cap is integrally formed with the supporting cylinder, the supporting cylinder is abutted on the limiting ring surface, the limiting ring surface is equipped with the fixed base, the fixed base is symmetrically arranged, this new type can position the locating holder through fixed base and limit, push down the anti -loose ring simultaneously, the guide seat moves in the guide groove, and the anti -loose ring's lifting can be guided through the cooperation of guide seat and guide groove, after the anti -loose ring drops, its inner wall is abutted on the surface of fixed base, can avoid that locating holder and locating groove separate, can avoid that sealed bottle cap loosens in the use, improves the sealing effect of plastic bottle.

Description

Technical Field

[0001] This utility model relates to the field of plastic container technology, specifically to a detachable sealing device for plastic containers. Background Technology

[0002] Plastic containers are widely used due to their advantages such as light weight, durability, corrosion resistance, and recyclability. They are made from a variety of materials, such as PET, HDPE, PVC, LDPE, PP, and PS, each with its unique properties and uses. The production process of plastic containers includes mixing, screw extrusion, mold closing, blow molding, mold opening, cooling, trimming, and inspection.

[0003] Existing plastic containers are sealed with bottle caps during use, and the bottle caps are connected to the bottle mouth by threads for positioning. This sealing structure makes the bottle caps prone to loosening during use, which will affect the sealing performance of the plastic container. To solve the above problems, this application proposes a detachable sealing device for plastic containers. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a detachable sealing device for plastic containers. A fixed base can limit the positioning card seat, while simultaneously pushing down the anti-loosening ring. A guide seat moves within a guide groove. The guide seat and guide groove work together to guide the raising and lowering of the anti-loosening ring. After the anti-loosening ring descends, its inner wall abuts against the surface of the fixed base, preventing the positioning card seat from separating from the positioning groove. This prevents the sealed bottle cap from loosening during use, improving the sealing effect on the plastic bottle and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a detachable sealing device for plastic containers, including a plastic bottle and a spiral bottle neck. The spiral bottle neck is integrally formed on the top of the plastic bottle, and a sealing cap is spirally connected to the spiral bottle neck.

[0008] A limiting ring is integrally formed on the bottom surface of the outer wall of the spiral bottle neck, and a support cylinder is integrally formed on the bottom of the sealing bottle cap, with the support cylinder abutting against the surface of the limiting ring.

[0009] The limiting ring surface is provided with a fixing seat, the fixing seats are symmetrically arranged, and each fixing seat surface is provided with a positioning slot;

[0010] The outer wall surface of the support cylinder is integrally formed with a positioning bracket, which is symmetrically arranged and engages with the positioning slot.

[0011] Preferably, the side wall surface of the fixed seat is provided with a first guide groove, and the side wall surface of the positioning card seat is provided with a second guide groove.

[0012] Preferably, the surface of the sealing cap is movably fitted with an anti-loosening ring, which is located above the support cylinder.

[0013] Preferably, the inner wall of the anti-loosening ring is provided with guide seats, which are symmetrically distributed on the inner wall of the anti-loosening ring.

[0014] Preferably, a guide groove is provided on the surface of the sealed bottle cap at a position corresponding to the guide seat, and the guide seat is slidably connected to the guide groove.

[0015] Preferably, after the anti-loosening ring descends, its inner wall abuts against the outer wall surface of the fixing seat.

[0016] Preferably, a counterweight ring is fixedly connected to the top surface of the anti-loosening ring.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. In this utility model, the positioning bracket on the surface of the support cylinder connected to the bottom of the sealed bottle cap is engaged in the positioning groove on the surface of the fixed seat. The fixed seat can limit the positioning bracket, and at the same time, the anti-loosening ring is pushed down, and the guide seat moves in the guide groove. The guide seat and the guide groove cooperate to guide the lifting and lowering of the anti-loosening ring. After the anti-loosening ring descends, its inner wall abuts against the surface of the fixed seat, which can prevent the positioning bracket from separating from the positioning groove. The counterweight ring can balance the anti-loosening ring to prevent it from moving upward. During use, the sealed bottle cap can be prevented from loosening, thus improving the sealing effect on the plastic bottle.

[0019] 2. In this utility model, when the sealed bottle cap rotates, the first guide groove and the second guide groove work together to guide the positioning card seat, which can easily engage the positioning card seat with the positioning card groove, and can easily tighten the sealed bottle cap quickly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the detachable sealing device for the plastic container of this utility model;

[0021] Figure 2 This is a schematic diagram of the plastic bottle structure of the detachable sealing device for the plastic container of this utility model;

[0022] Figure 3 This is a schematic diagram of the sealing cap structure of the detachable sealing device for the plastic container of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the bottle mouth of the detachable sealing device for the plastic container of this utility model.

[0024] Figure label:

[0025] 1. Plastic bottle; 2. Spiral bottle neck; 3. Limiting ring; 4. Sealing cap; 5. Support cylinder; 6. Fixing base; 7. Positioning slot; 8. Positioning seat; 9. First guide groove; 10. Second guide groove; 11. Anti-loosening ring; 12. Guide groove; 13. Guide seat; 14. Counterweight ring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4 As shown, the detachable sealing device for plastic containers proposed in this utility model includes a plastic bottle 1 and a spiral bottle mouth 2. The spiral bottle mouth 2 is integrally formed on the top of the plastic bottle 1, and a sealing cap 4 is spirally connected to the spiral bottle mouth 2.

[0028] The bottom surface of the outer wall of the spiral bottle mouth 2 is integrally formed with a limiting ring 3, and the bottom of the sealing bottle cap 4 is integrally formed with a support cylinder 5, which abuts against the surface of the limiting ring 3.

[0029] The limiting ring 3 is provided with a fixing seat 6, which is symmetrically arranged, and each fixing seat 6 has a positioning slot 7 through it.

[0030] The outer wall surface of the support cylinder 5 is integrally formed with a positioning bracket 8, which is symmetrically arranged and engages with the positioning slot 7.

[0031] It should be noted that the sealing cap 4 is threadedly connected to the screw neck 2 at the top of the plastic bottle 1, allowing the plastic bottle 1 to be sealed. At this time, the positioning slot 8 on the surface of the support cylinder 5 connected to the bottom of the sealing cap 4 engages with the positioning groove 7 on the surface of the fixing seat 6. The fixing seat 6 can limit the positioning slot 8, preventing the sealing cap 4 from loosening during use and improving the sealing effect on the plastic bottle 1.

[0032] In this embodiment, as Figure 3 As shown, the side wall surface of the fixed base 6 is provided with a first guide groove 9, and the side wall surface of the positioning card base 8 is provided with a second guide groove 10.

[0033] It should be noted that when the sealing cap 4 rotates, the first guide groove 9 and the second guide groove 10 work together to guide the positioning seat 8, which facilitates the engagement of the positioning seat 8 with the positioning groove 7, and allows for quick and easy tightening of the sealing cap 4.

[0034] In this embodiment, as Figure 3 As shown, the sealing cap 4 is movably fitted with an anti-loosening ring 11. The anti-loosening ring 11 is located above the support cylinder 5. After the anti-loosening ring 11 is lowered, its inner wall abuts against the outer wall surface of the fixed seat 6. A counterweight ring 14 is fixedly connected to the top surface of the anti-loosening ring 11.

[0035] It should be noted that when the anti-loosening ring 11 is pushed down, the guide seat 13 moves within the guide groove 12. The guide seat 13 and the guide groove 12 work together to guide the lifting and lowering of the anti-loosening ring 11. After the anti-loosening ring 11 descends, its inner wall abuts against the surface of the fixed seat 6, which can prevent the positioning card seat 8 from separating from the positioning card groove 7. The counterweight ring 14 can counterweight the anti-loosening ring 11 to prevent it from moving upward. During use, it can prevent the sealing cap 4 from becoming loose and improve the sealing effect on the plastic bottle 1.

[0036] In this embodiment, as Figure 3 As shown, the inner wall of the anti-loosening ring 11 is provided with a guide seat 13, which is symmetrically distributed on the inner wall of the anti-loosening ring 11. The surface of the sealing cap 4 is provided with a guide groove 12 corresponding to the position of the guide seat 13, and the guide seat 13 and the guide groove 12 are slidably connected.

[0037] It should be noted that the guide seat 13 and the guide groove 12 are slidably connected, which can guide the lifting and lowering movement of the anti-loosening ring 11.

[0038] The working principle and usage process of this utility model: The sealing cap 4 is threadedly connected to the spiral bottle neck 2 at the top of the plastic bottle 1, and the plastic bottle 1 can be sealed by the sealing cap 4. At this time, the positioning card seat 8 on the surface of the support cylinder 5 connected to the bottom of the sealing cap 4 is engaged in the positioning card groove 7 on the surface of the fixing seat 6. The fixing seat 6 can limit the positioning card seat 8. At the same time, the anti-loosening ring 11 is pushed down, and the guide seat 13 moves in the guide groove 12. The guide seat 13 and the guide groove 12 can guide the raising and lowering of the anti-loosening ring 11. After the anti-loosening ring 11 descends, its inner wall abuts against the fixing seat 6. The surface of the base 6 prevents the positioning card seat 8 from separating from the positioning card groove 7. The counterweight ring 14 can counterweight the anti-loosening ring 11 to prevent the anti-loosening ring 11 from moving upward. During use, it can prevent the sealing cap 4 from loosening and improve the sealing effect on the plastic bottle 1. The side wall of the fixed base 6 and the side of the positioning card seat 8 are respectively provided with a first guide groove 9 and a second guide groove 10. When the sealing cap 4 rotates, the first guide groove 9 and the second guide groove 10 cooperate to guide the positioning card seat 8, which can easily engage the positioning card seat 8 with the positioning card groove 7 and quickly tighten the sealing cap 4.

[0039] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A removable sealing device for a plastic container, comprising a plastic bottle (1) and a screw cap (2), wherein the screw cap (2) is integrally formed on the top of the plastic bottle (1), characterized in that, A sealing cap (4) is screwed onto the spiral bottle mouth (2); The bottom surface of the outer wall of the spiral bottle mouth (2) is integrally formed with a limiting ring (3), and the bottom of the sealing bottle cap (4) is integrally formed with a support cylinder (5), which abuts against the surface of the limiting ring (3). The limiting ring (3) is provided with a fixing seat (6) on its surface. The fixing seats (6) are arranged symmetrically, and each fixing seat (6) has a positioning slot (7) through it. The outer wall surface of the support cylinder (5) is integrally formed with a positioning card seat (8), the positioning card seat (8) is symmetrically arranged, and the positioning card seat (8) is engaged with the positioning card groove (7).

2. The detachable sealing device for a plastic container according to claim 1, characterized in that, The side wall surface of the fixed seat (6) is provided with a first guide groove (9), and the side wall surface of the positioning card seat (8) is provided with a second guide groove (10).

3. The detachable sealing device for a plastic container according to claim 2, characterized in that, The sealing cap (4) is movably fitted with an anti-loosening ring (11), which is located above the support cylinder (5).

4. The detachable sealing device for a plastic container according to claim 3, characterized in that, The inner wall of the anti-loosening ring (11) is provided with a guide seat (13), which is symmetrically distributed on the inner wall of the anti-loosening ring (11).

5. The detachable sealing device for a plastic container according to claim 4, characterized in that, The sealing cap (4) has a guide groove (12) at a position corresponding to the guide seat (13), and the guide seat (13) and the guide groove (12) are slidably connected.

6. The detachable sealing device for a plastic container according to claim 5, characterized in that, After the anti-loosening ring (11) descends, its inner wall abuts against the outer wall surface of the fixing seat (6).

7. The detachable sealing device for a plastic container according to claim 6, characterized in that, A counterweight ring (14) is fixedly connected to the top surface of the anti-loosening ring (11).

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