A locking device for oil drum bottle caps

By designing a clamping device for the oil drum cap, and using a rotating disc to push the positioning top ring to clamp the first positioning ring, the problem of unstable sealing of salad oil drums was solved, achieving higher sealing performance and stability.

CN224428484UActive Publication Date: 2026-06-30TIANJIN HUAPU PLASTIC CONTAINER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN HUAPU PLASTIC CONTAINER CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-30

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Abstract

This utility model belongs to the field of oil drum sealing technology, specifically a clamping device for an oil drum cap, including an oil drum and a bottle mouth seat. The bottle mouth seat is integrally formed on the top of the oil drum. A plug-in cylinder is movably inserted into the surface of the bottle mouth seat, and a bottle cap is threadedly connected to the top of the plug-in cylinder. A first positioning retaining ring is integrally formed on the bottom of the inner wall of the plug-in cylinder, and a second positioning retaining ring is integrally formed on the outer wall surface of the bottle mouth seat. A fixing ring is integrally formed on the outer wall surface of the bottle mouth seat, and the fixing ring is located below the second positioning retaining ring. A guide hole is formed through the surface of the fixing ring, and the guide holes are evenly distributed. Under the action of the threads, the rotating disk of this invention pushes the positioning top ring upward through the support column. The positioning top ring abuts against the lower surface of the first positioning retaining ring. The positioning top ring and the second positioning retaining ring can clamp the first positioning retaining ring, which can improve the stability of the sealing cap installation, thereby improving the sealing performance of the oil drum.
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Description

Technical Field

[0001] This utility model relates to the field of oil drum sealing technology, specifically a clamping device for oil drum bottle caps. Background Technology

[0002] A salad oil plastic bucket is a container used to hold salad oil, usually made of food-grade plastics such as PET, PE, or PP. These materials are non-toxic, transparent, and highly resistant to acids and alkalis, ensuring the safe storage and transportation of salad oil. Made of food-grade plastic, it meets relevant national standards, ensuring food safety. High transparency: the transparent PET bucket body makes it easy to observe the state of the oil.

[0003] The existing salad oil drum lid is inserted into the oil drum by pressing down. The limiting ring on the inner wall of the lid and the limiting ring on the oil drum are interlocked to fix it. However, there is a certain gap between the lid and the oil drum after it is fixed, which makes the lid installation unstable and prone to leakage. In order to solve the above problems, this application proposes a clamping device for oil drum lid. 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 clamping device for an oil drum bottle cap. Under the action of the threads, the rotating disk pushes the positioning top ring upward through the support column. The positioning top ring abuts against the lower surface of the first positioning retaining ring. The positioning top ring and the second positioning retaining ring can clamp the first positioning retaining ring, which can improve the stability of the sealing cap installation, thereby improving the sealing performance of the oil drum and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a clamping device for an oil drum bottle cap, including an oil drum and a bottle mouth seat. The bottle mouth seat is integrally formed on the top of the oil drum, and a plug-in cylinder is movably inserted into the surface of the bottle mouth seat. A bottle cap is threadedly connected to the top of the plug-in cylinder.

[0008] The bottom of the inner wall of the plug tube is integrally formed with a first positioning retaining ring, and the outer wall surface of the bottle mouth seat is integrally formed with a second positioning retaining ring.

[0009] A fixing ring is integrally formed on the outer wall surface of the bottle mouth seat. The fixing ring is located below the second positioning ring. A guide hole is opened through the surface of the fixing ring. The guide holes are distributed at equal intervals. A support column is movably inserted into the inner cavity of the guide hole. A rotating disk is provided at the bottom of the support column. The rotating disk is threadedly connected to the threaded groove on the surface of the insertion cylinder.

[0010] A positioning top ring is fixedly connected to the top of the support column, and the positioning top ring is movably sleeved on the surface of the plug-in cylinder.

[0011] Preferably, the surface of the insert tube is provided with an easy-tear strip, which is connected to the bottom surface of the bottle cap.

[0012] Preferably, the top and bottom of the outer wall surface of the plug tube are provided with threaded grooves, and the top of the outer wall surface of the plug tube is threadedly connected to the bottle cap through the threaded grooves.

[0013] Preferably, the bottom of the outer wall surface of the plug tube is threadedly connected to the rotating disk via a threaded groove, the rotating disk surface is rotatably connected to a rotating connecting disk, and the bottom of the support column is fixed to the surface of the rotating connecting disk.

[0014] Preferably, the positioning top ring is movably located below the second positioning retaining ring.

[0015] Preferably, the upper surface of the positioning top ring and the lower surface of the second positioning retaining ring are respectively provided with a first sealing ring, and the first sealing ring is respectively attached to the first positioning retaining ring.

[0016] Preferably, the top surface of the bottle neck seat is provided with a second sealing ring, the inner wall of the insertion tube is provided with a sealing pressure ring, the sealing pressure ring is located above the first positioning ring, and the sealing pressure ring presses against the surface of the second sealing ring.

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

[0018] 1. In this utility model, under pressure, the first positioning retaining ring passes over the surface of the second positioning retaining ring, so that the first positioning retaining ring is located between the second positioning retaining ring and the positioning top ring. By rotating the rotating disk, the rotating disk pushes the positioning top ring upward through the support column under the action of the thread. The positioning top ring abuts against the lower surface of the first positioning retaining ring. The first positioning retaining ring can be clamped by the positioning top ring and the second positioning retaining ring, which can improve the stability of the sealing cover installation.

[0019] 2. In this utility model, the first sealing ring can seal the connection between the positioning top ring and the second positioning retaining ring and the first positioning retaining ring. The sealing pressure ring squeezes the second sealing ring on the surface of the bottle mouth seat, which can seal the connection between the bottle mouth seat and the insert cylinder again, thereby improving the sealing effect on the oil drum. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a clamping device for an oil drum bottle cap according to the present invention.

[0021] Figure 2 This is a schematic diagram of the bottle cap clamping structure of the clamping device for oil drum bottle caps according to the present invention;

[0022] Figure 3This is a schematic diagram of the bottle mouth seat structure of a clamping device for an oil drum bottle cap according to the present invention;

[0023] Figure 4 This is a schematic diagram of the insert cylinder structure of a clamping device for an oil drum bottle cap according to this utility model.

[0024] Figure label:

[0025] 1. Oil drum; 2. Bottle neck holder; 3. Insert sleeve; 4. Bottle cap; 5. Easy-tear strip; 6. First positioning retaining ring; 7. Second positioning retaining ring; 8. Fixing ring; 9. Rotary disk; 10. Rotary connecting disk; 11. Support column; 12. Positioning top ring; 13. First sealing ring; 14. Second sealing ring; 15. Sealing pressure 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 present invention proposes a clamping device for a bottle cap on an oil drum, including an oil drum 1 and a bottle mouth seat 2. The bottle mouth seat 2 is integrally formed on the top of the oil drum 1, and a plug-in tube 3 is movably inserted into the surface of the bottle mouth seat 2. A bottle cap 4 is threadedly connected to the top of the plug-in tube 3.

[0028] The bottom of the inner wall of the plug tube 3 is integrally formed with a first positioning ring 6, and the outer wall surface of the bottle mouth seat 2 is integrally formed with a second positioning ring 7.

[0029] A fixing ring 8 is integrally formed on the outer wall surface of the bottle mouth seat 2. The fixing ring 8 is located below the second positioning ring 7. A guide hole is opened through the surface of the fixing ring 8. The guide holes are distributed at equal intervals. A support column 11 is movably inserted into the inner cavity of the guide hole. A rotating disk 9 is provided at the bottom of the support column 11. The rotating disk 9 is threadedly connected to the threaded groove on the surface of the insertion cylinder 3.

[0030] The top of the support column 11 is fixedly connected to a positioning top ring 12, which is movably sleeved on the surface of the plug-in cylinder 3.

[0031] It should be noted that when the insert sleeve 3 is inserted into the bottle neck seat 2, and the bottle cap 4 is pressed down, the first positioning ring 6 passes over the surface of the second positioning ring 7 under pressure, so that the first positioning ring 6 is located between the second positioning ring 7 and the positioning top ring 12. By rotating the rotating disk 9, the rotating disk 9 pushes the positioning top ring 12 up through the support column 11 under the action of the thread. The positioning top ring 12 abuts against the lower surface of the first positioning ring 6. The first positioning ring 6 can be clamped by the positioning top ring 12 and the second positioning ring 7, which can improve the stability of the sealing cap installation.

[0032] In this embodiment, as Figure 1 As shown, the surface of the insert tube 3 is provided with an easy-tear strip 5, which is connected to the bottom surface of the bottle cap 4.

[0033] It should be noted that the bottle cap 4 is threadedly connected to the connector 3 via a threaded groove. The bottle cap 4 is fixed to the connector 3 by an easy-tear strip 5. The bottle cap 4 can be unscrewed after the easy-tear strip 5 is torn open, which can play a role in preventing disassembly.

[0034] In this embodiment, as Figure 3 As shown, threaded grooves are provided on the top and bottom of the outer wall surface of the insertion tube 3. The top of the outer wall surface of the insertion tube 3 is threadedly connected to the bottle cap 4 through the threaded groove. The bottom of the outer wall surface of the insertion tube 3 is threadedly connected to the rotating disk 9 through the threaded groove. A rotating connecting disk 10 is rotatably connected to the surface of the rotating disk 9. The bottom of the support column 11 is fixed to the surface of the rotating connecting disk 10. The positioning top ring 12 is movably disposed below the second positioning retaining ring 7.

[0035] It should be noted that after the insertion tube 3 is inserted into the bottle neck seat 2, by rotating the rotating disk 9, the rotating disk 9 pushes the positioning top ring 12 up through the support column 11 under the action of the thread. The positioning top ring 12 abuts against the lower surface of the first positioning ring 6, and the first positioning ring 6 can be clamped by the positioning top ring 12 and the second positioning ring 7.

[0036] In this embodiment, as Figure 3 and Figure 4 As shown, the upper surface of the positioning top ring 12 and the lower surface of the second positioning retaining ring 7 are respectively provided with a first sealing ring 13. The first sealing ring 13 is respectively attached to the first positioning retaining ring 6. The top surface of the bottle mouth seat 2 is provided with a second sealing ring 14. The inner wall of the insertion tube 3 is provided with a sealing pressure ring 15. The sealing pressure ring 15 is located above the first positioning retaining ring 6 and is pressed against the surface of the second sealing ring 14.

[0037] It should be noted that the first sealing ring 13 can seal the connection between the positioning top ring 12 and the second positioning retaining ring 7 and the first positioning retaining ring 6. The sealing pressure ring 15 squeezes the second sealing ring 14 on the surface of the bottle mouth seat 2, which can seal the connection between the bottle mouth seat 2 and the insert cylinder 3 again, thereby improving the sealing effect on the oil drum.

[0038] The working principle and usage process of this utility model are as follows: The bottle cap 4 is threadedly connected to the insert cylinder 3 through a threaded groove. The bottle cap 4 is fixed to the insert cylinder 3 by an easy-tear strip 5. The insert cylinder 3 is inserted into the bottle mouth seat 2. By pressing down on the bottle cap 4, the first positioning ring 6 passes over the surface of the second positioning ring 7 under pressure, so that the first positioning ring 6 is located between the second positioning ring 7 and the positioning top ring 12. By rotating the rotating disk 9, the rotating disk 9 pushes the positioning top ring 12 up through the support column 11 under the action of the thread. The positioning top ring 12 abuts against the lower surface of the first positioning ring 6. The positioning top ring 12 and the second positioning ring 7 can clamp the first positioning ring 6, which can improve the stability of the sealing cap installation. At the same time, the first sealing ring 13 can seal the connection between the positioning top ring 12 and the second positioning ring 7 and the first positioning ring 6. The sealing pressure ring 15 squeezes the second sealing ring 14 on the surface of the bottle mouth seat 2, which can seal the connection between the bottle mouth seat 2 and the insert cylinder 3 again, which can improve the sealing effect of the oil drum.

[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 clamping device for an oil drum cap, comprising an oil drum (1) and a bottle neck seat (2), wherein the bottle neck seat (2) is integrally formed on the top of the oil drum (1), characterized in that, The bottle neck seat (2) is movably inserted with a plug tube (3), and the top of the plug tube (3) is threadedly connected with a bottle cap (4); The bottom of the inner wall of the insert tube (3) is integrally formed with a first positioning ring (6), and the outer wall surface of the bottle mouth seat (2) is integrally formed with a second positioning ring (7). The outer wall surface of the bottle mouth seat (2) is integrally formed with a fixing ring (8), which is located below the second positioning ring (7). The surface of the fixing ring (8) is provided with a guide hole, which is distributed at equal intervals. A support column (11) is movably inserted into the inner cavity of the guide hole. A rotating disk (9) is provided at the bottom of the support column (11), and the rotating disk (9) is threadedly connected to the threaded groove on the surface of the insertion cylinder (3). The top of the support column (11) is fixedly connected to a positioning top ring (12), which is movably sleeved on the surface of the plug tube (3).

2. The clamping device for an oil drum bottle cap according to claim 1, characterized in that, The surface of the plug tube (3) is provided with an easy-tear strip (5), which is connected to the bottom surface of the bottle cap (4).

3. The clamping device for an oil drum bottle cap according to claim 2, characterized in that, The top and bottom of the outer wall surface of the plug tube (3) are provided with threaded grooves, and the top of the outer wall surface of the plug tube (3) is threadedly connected to the bottle cap (4) through the threaded grooves.

4. The clamping device for an oil drum bottle cap according to claim 3, characterized in that, The bottom of the outer wall surface of the plug tube (3) is threadedly connected to the rotating disk (9) through a threaded groove. The rotating disk (9) is rotatably connected to the rotating connecting disk (10). The bottom of the support column (11) is fixed to the surface of the rotating connecting disk (10).

5. The clamping device for an oil drum bottle cap according to claim 4, characterized in that, The positioning top ring (12) is movably positioned below the second positioning ring (7).

6. The clamping device for an oil drum bottle cap according to claim 5, characterized in that, The upper surface of the positioning top ring (12) and the lower surface of the second positioning retaining ring (7) are respectively provided with a first sealing ring (13), and the first sealing ring (13) is respectively attached to the first positioning retaining ring (6).

7. The clamping device for an oil drum bottle cap according to claim 6, characterized in that, The top surface of the bottle neck seat (2) is provided with a second sealing ring (14), and the inner wall of the plug tube (3) is provided with a sealing pressure ring (15). The sealing pressure ring (15) is located above the first positioning ring (6), and the sealing pressure ring (15) presses against the surface of the second sealing ring (14).