Sealing plastic flange barrel

Abstract

The utility model relates to the technical field of plastic flange barrels, in particular to a sealing plastic flange barrel. The sealing plastic flange barrel comprises a barrel body and a barrel cover which covers the barrel body and is used for sealing a barrel opening; a transition cambered surface part which is of a flaring structure from top to bottom is arranged on the inner wall of the cover edge of the barrel cover; and a sealing assembly is erected in the barrel body. According to the sealing plastic flange barrel provided by the utility model, when the barrel cover is screwed tightly along the barrel body, the transition cambered surface part is inserted into the cavity gap between the conical elastic rubber ring and the internal thread section, so that the conical elastic rubber ring can be tightly attached to the transition cambered surface part, and the connection port of the barrel cover and the barrel body is effectively sealed and shielded; and through cooperative sealing of the conical elastic rubber ring and the flaring type transition cambered surface part and threaded sealing of the barrel body and the barrel cover of the plastic flange barrel, double sealing barriers of the plastic flange barrel are effectively achieved.

Description

Technical Field

[0001] This utility model relates to the field of plastic flange barrel technology, and in particular to a sealed plastic flange barrel. Background Technology

[0002] Plastic flanged drums are widely used for the storage and transportation of liquids and solids due to their lightweight, corrosion resistance, and low cost. However, plastic flanged drums with traditional threaded connections are prone to wear and tear during long-term use, leading to seal failure. This is especially true when temperatures change or when the drum is frequently opened and closed, causing liquid leakage. Furthermore, the exposed threaded section at the opening is susceptible to damage from external impacts or friction, resulting in the lid and body not fitting tightly together.

[0003] Therefore, it is necessary to provide a new type of sealed plastic flange barrel to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a sealed plastic flange barrel.

[0005] The sealing plastic flange barrel provided by this utility model includes a barrel body and a barrel lid that covers the barrel body and is used to seal the barrel opening. The barrel body has an internal thread section at the barrel opening, the barrel lid has an external thread section, and the inner wall of the lid edge of the barrel lid has a transition arc surface with a flared structure from top to bottom.

[0006] A sealing assembly is installed inside the barrel, and the sealing assembly includes a mounting ring. A conical elastic rubber ring with elastic connection is installed on the mounting ring, and the conical tip of the conical elastic rubber ring faces upward.

[0007] Preferably, an elastic rubber ring is fixedly installed on the inner ring wall of the mounting ring, the bottom ring opening of the tapered elastic rubber ring is fixedly connected to the elastic rubber ring, and the cavity between the tapered elastic rubber ring and the internal thread section is smaller than the transition arc section.

[0008] Preferably, an elastic washer is fixedly fitted onto the upper surface of the mounting ring.

[0009] Preferably, a protective ring is fixedly fitted at the top opening of the conical elastic rubber ring.

[0010] Preferably, the conical elastic rubber ring has multiple ring-shaped steel balls that are rotatably connected and arranged in a ring near the outer wall of the protective ring.

[0011] Preferably, the bottom of the internal thread section is provided with an inner edge bearing portion, and the inner edge bearing portion is provided with a plurality of annularly distributed threaded holes.

[0012] Preferably, both the elastic washer and the mounting ring have multiple annularly distributed mounting holes, and the corresponding mounting holes on the elastic washer and the mounting ring are coaxially arranged. The mounting ring is mounted on the inner edge bearing portion and is fixedly connected to the inner edge bearing portion by screws.

[0013] Preferably, the bucket lid has an installation ring groove for closing the bucket opening, and the external thread section is disposed on the inner ring wall of the installation ring groove.

[0014] Compared with related technologies, the sealed plastic flange barrel provided by this utility model has the following beneficial effects:

[0015] When the lid is screwed on along the barrel body, the transition arc section is inserted into the cavity between the conical elastic rubber ring and the internal thread section. This allows the conical elastic rubber ring to fit tightly against the transition arc section, effectively sealing and shielding the connection between the lid and the barrel body. This significantly improves the sealing effect of the plastic flange barrel. Furthermore, the synergistic sealing of the conical elastic rubber ring and the flared transition arc section, combined with the threaded seal between the barrel body and the lid, effectively achieves a double sealing barrier for the plastic flange barrel. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the sealed plastic flange barrel provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the structure.

[0018] Figure 3 for Figure 2 A cross-sectional view of the barrel shown.

[0019] Figure 4 for Figure 2 A cross-sectional view of the bucket lid shown.

[0020] Figure 5 for Figure 3 A cross-sectional view of the sealing assembly shown.

[0021] Figure 6 for Figure 2 A magnified structural diagram of point A is shown below;

[0022] Figure 7 for Figure 5 A magnified structural diagram of point B is shown below;

[0023] Figure 8 for Figure 5 A magnified structural diagram of point C is shown.

[0024] The following are the labeling elements in the diagram: 1. Barrel body; 11. Internal thread section; 12. Inner edge bearing part; 1a. Threaded hole; 2. Barrel lid; 2a. Mounting ring groove; 21. External thread section; 22. Transition arc section; 3. Sealing component; 3a. Mounting hole; 31. Mounting ring; 32. Conical elastic rubber ring; 33. Elastic rubber ring; 34. Elastic washer; 35. Protective ring; 4. Steel ball. Detailed Implementation

[0025] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] Please see Figures 1 to 8 This utility model provides a sealed plastic flange barrel, which includes a barrel body 1, a barrel cover 2, and a sealing component 3.

[0028] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The barrel body 1 is covered with a barrel lid 2 for sealing the barrel opening. Specifically, the barrel body 1 has an internal thread section 11 at the barrel opening, while the barrel lid 2 has an external thread section 21. The barrel lid 2 has an installation ring groove 2a for sealing the barrel opening, and the external thread section 21 is set on the inner ring wall of the installation ring groove 2a.

[0029] It should be noted that this application effectively reduces the probability of damage to the threaded sections of the barrel body 1 and the barrel cover 2 when they are in a separated state due to collisions with external objects by designing an internal threaded section 11 on the barrel body 1 and an external threaded section 21 located in the mounting ring groove 2a on the barrel cover 2.

[0030] In this embodiment, a flange for connecting pipes is installed on the bucket lid 2.

[0031] In the embodiments of this utility model, please refer to Figures 1 to 8The inner wall of the lid 2 is provided with a transition arc section 22 with an flared structure from top to bottom, and the sealing component 3 is installed inside the barrel body 1. The sealing component 3 includes a mounting ring 31, on which a conical elastic rubber ring 32 is installed with elastic connection, and the conical elastic rubber ring 32 has its cone head facing upward. An elastic rubber ring 33 is fixedly installed on the inner ring wall of the mounting ring 31. The bottom ring of the conical elastic rubber ring 32 is fixedly connected to the elastic rubber ring 33, and the cavity between the conical elastic rubber ring 32 and the internal thread section 11 is smaller than the transition arc section 22.

[0032] The bottom of the internal thread section 11 is provided with an inner edge bearing part 12, and the inner edge bearing part 12 is provided with a plurality of annularly distributed threaded holes 1a. The elastic washer 34 and the mounting ring 31 are both provided with a plurality of annularly distributed mounting holes 3a, and the elastic washer 34 and the corresponding mounting holes 3a on the mounting ring 31 are coaxially arranged. The mounting ring 31 is mounted on the inner edge bearing part 12 and is fixedly connected to the inner edge bearing part 12 by screws.

[0033] It should be noted that: after placing the mounting ring 31 on the inner edge bearing part 12 and ensuring that the threaded hole 1a and the mounting hole 3a correspond to each other, the screw can be used for quick installation. If the conical elastic rubber ring 32 cracks or breaks, the screw can be removed and a new sealing component 3 can be replaced.

[0034] After the material in the barrel 1 is stored, the barrel lid 2 is closed. Since the cavity between the conical elastic rubber ring 32 and the internal thread section 11 is smaller than the transition arc section 22, and the gap between the conical elastic rubber ring 32 and the internal thread section 11 has a decreasing diameter structure from top to bottom, when the barrel lid 2 is tightened along the barrel 1, the transition arc section 22 is inserted into the cavity between the conical elastic rubber ring 32 and the internal thread section 11. Thus, the conical elastic rubber ring 32 can fit tightly against the transition arc section 22, effectively sealing and shielding the connection between the barrel lid 2 and the barrel 1, thereby greatly improving the sealing effect of the plastic flange barrel. Through the synergistic sealing of the conical elastic rubber ring 32 and the flared transition arc section 22, combined with the threaded sealing of the barrel 1 and the barrel lid 2, a double sealing barrier is effectively achieved for the sealed plastic flange barrel.

[0035] When the lid 2 is separated from the body 1, the conical elastic rubber ring 32 can also provide some protection to the internal thread section 11.

[0036] It is worth noting that: because the conical elastic rubber ring 32 is connected to the mounting ring 31 through the elastic rubber ring 33, the connecting ring opening at the bottom of the conical elastic rubber ring 32 is not prone to cracking.

[0037] In this embodiment, the diameter of the mounting hole 3a on the elastic washer 34 is larger than the diameter of the mounting hole 3a on the mounting ring 31, thus preventing the screw from being pressed onto the elastic washer 34.

[0038] Furthermore, an elastic washer 34 is fixedly fitted on the upper surface of the mounting ring 31, so that when the barrel lid 2 is screwed onto the barrel body 1, the elastic washer 34 can abut against the transition arc surface 22 and the mounting ring 31, effectively reducing the wear between the transition arc surface 22 and the mounting ring 31.

[0039] Furthermore, a protective ring 35 is fixedly fitted to the top ring opening of the conical elastic rubber ring 32. The protective ring 35 can effectively protect the top ring opening of the conical elastic rubber ring 32, reduce the risk of wear and cracking, and extend the sealing life.

[0040] In this design, multiple ring-shaped and rotatably connected steel balls 4 are embedded in the outer wall of the conical elastic rubber ring 32 near the protective ring 35. This allows the conical elastic rubber ring 32 to roll along the transition arc surface 22 after the lid 2 is screwed onto the barrel body 1, thereby converting sliding friction into rolling friction by using the steel balls 4. This reduces tightening resistance and allows the conical elastic rubber ring 32 to fit more smoothly onto the transition arc surface 22.

[0041] The working principle of the sealed plastic flange barrel provided by this utility model is as follows:

[0042] This application effectively reduces the probability of damage to the threaded sections of the barrel body 1 and the barrel lid 2 due to collisions with external objects when they are in a separated state by designing an internal threaded section 11 on the barrel body 1 and an external threaded section 21 located in the mounting ring groove 2a on the barrel lid 2. After placing the mounting ring 31 on the inner edge bearing part 12 and ensuring that the threaded hole 1a corresponds to the mounting hole 3a, it is quickly installed using screws. If the conical elastic rubber ring 32 cracks or breaks, the screws can be removed and a new sealing component 3 can be replaced. After the material in the barrel body 1 is stored, the barrel lid 2 is closed. Because the cavity between the conical elastic rubber ring 32 and the internal threaded section 11 is smaller than the transition arc part 22, and... The gap between the conical elastic rubber ring 32 and the internal thread section 11 decreases in diameter from top to bottom. Therefore, when the lid 2 is tightened along the body 1, the transition arc section 22 is inserted into the cavity between the conical elastic rubber ring 32 and the internal thread section 11, so that the conical elastic rubber ring 32 can fit tightly on the transition arc section 22, effectively sealing and shielding the connection between the lid 2 and the body 1, thereby greatly improving the sealing effect of the plastic flange barrel. Through the synergistic sealing of the conical elastic rubber ring 32 and the flared transition arc section 22, combined with the threaded seal of the body 1 and the lid 2, a double sealing barrier is effectively achieved for the plastic flange barrel.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealed plastic flange barrel, characterized in that, Includes a barrel body (1) and a barrel lid (2) that covers the barrel body (1) and is used to seal the barrel opening. The barrel body (1) has an internal thread section (11) at the barrel opening, and the barrel lid (2) has an external thread section (21). The inner wall of the lid (2) has a transition arc surface (22) with a flared structure from top to bottom. The barrel (1) is equipped with a sealing assembly (3), and the sealing assembly (3) includes a mounting ring (31), on which a conical elastic rubber ring (32) with elastic connection is mounted, and the conical elastic rubber ring (32) has its cone head facing upward.

2. The sealed plastic flange barrel according to claim 1, characterized in that, An elastic rubber ring (33) is fixedly installed on the inner ring wall of the mounting ring (31). The bottom ring opening of the tapered elastic rubber ring (32) is fixedly connected to the elastic rubber ring (33), and the cavity between the tapered elastic rubber ring (32) and the internal thread section (11) is smaller than the transition arc section (22).

3. The sealed plastic flange barrel according to claim 2, characterized in that, An elastic washer (34) is fixedly fitted onto the upper surface of the mounting ring (31).

4. The sealed plastic flange barrel according to claim 2, characterized in that, The top opening of the conical elastic rubber ring (32) is fixedly fitted with a protective ring (35).

5. The sealed plastic flange barrel according to claim 4, characterized in that, The conical elastic rubber ring (32) has multiple ring-shaped steel balls (4) that are rotatably connected and arranged in a ring on the outer wall of the protective ring (35).

6. The sealed plastic flange barrel according to claim 4, characterized in that, The bottom of the internal thread section (11) is provided with an inner edge bearing part (12), and the inner edge bearing part (12) is provided with a plurality of annularly distributed threaded holes (1a).

7. The sealed plastic flange barrel according to claim 3, characterized in that, Both the elastic washer (34) and the mounting ring (31) are provided with a plurality of annularly distributed mounting holes (3a), and the corresponding mounting holes (3a) on the elastic washer (34) and the mounting ring (31) are coaxially arranged. The mounting ring (31) is mounted on the inner edge bearing part (12) and is fixedly connected to the inner edge bearing part (12) by screws.

8. The sealed plastic flange barrel according to claim 1, characterized in that, The lid (2) is provided with an installation ring groove (2a) for covering the mouth of the bucket, and the external thread section (21) is provided on the inner ring wall of the installation ring groove (2a).

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