Mounting structure of environment-friendly lining bag of steel drum

Abstract

The utility model discloses a mounting structure of an environment-friendly lining bag of a steel drum, which comprises a cover seat arranged on the steel drum and a drum cover matched with the cover seat, and further comprises a lining bag fixing seat sleeved on the upper side of the cover seat and provided with a through hole matched with the cover seat. The inner side wall of the through hole is connected with a thin film part which extends downwards to penetrate through the cover seat, the lower end of the thin film part is provided with a connecting ring, the connecting ring is connected with a lining bag in the steel barrel, and the barrel cover is arranged on the upper side of the lining bag fixing seat and partially penetrates through the through hole to be in threaded connection with the inner side wall of the cover seat. And the film part is clamped between the barrel cover and the cover seat. The barrel cover can solve the problem that an existing barrel cover can not be firmly connected with a cover seat under the condition that a lining bag can not be fixed on the cover seat.

Description

Technical Field

[0001] This utility model relates to the field of industrial transport steel drum technology, specifically to an installation structure for an environmentally friendly inner liner bag for steel drums. Background Technology

[0002] Steel drums are a common container for storing and transporting liquid products. However, because steel drums are classified as hazardous waste by the state after use and cannot be recycled, inner lining bags are now widely used inside them. After use, only the inner lining bag needs to be replaced. The opening of the current inner lining bag is generally fixed to the lid of the steel drum. The opening of the inner lining bag is threaded, while the original lid was directly connected to the threaded opening of the inner lining bag. This meant that the threads on the lid could not be used for sealing, resulting in poor sealing and the lid potentially falling off after an impact, thus failing to maintain the original structure and sealing performance of the steel drum. Utility Model Content

[0003] This utility model provides an installation structure for an environmentally friendly inner liner bag for steel drums, which can solve the problem that existing drum lids cannot securely connect to the lid seat when the inner liner bag cannot be fixed on the lid seat.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an installation structure for an environmentally friendly inner liner bag for a steel drum, including a cover seat mounted on the steel drum and a drum lid matching the cover seat, and an inner liner bag fixing seat fitted on the upper side of the cover seat. The inner liner bag fixing seat has a through hole matching the cover seat, and a thin film portion extending downward through the cover seat is connected to the inner wall of the through hole. A connecting ring is provided at the lower end of the thin film portion, and the connecting ring is connected to the inner liner bag inside the steel drum. The drum lid is mounted on the upper side of the inner liner bag fixing seat and partially passes through the through hole and is threadedly connected to the inner wall of the cover seat, clamping the thin film portion between the drum lid and the cover seat. By setting the inner liner bag fixing seat, the inner liner bag can be fixed. The thin film portion does not affect the threaded fit between the drum lid and the cover seat, and the original drum lid and cover seat can be used for connection, ensuring the connection strength between the drum lid and the cover seat. The inner liner bag will not fall off, the sealing performance is good, and the original function of the steel drum is preserved.

[0005] Preferably, the outer side of the inner lining bag fixing seat is provided with a flange, and the lower inner side of the flange is provided with a beveled edge. The flange covers the upper edge of the cover seat and the beveled edge is fastened to the outer protruding edge of the cover seat. The beveled edge and the flange can quickly position the inner lining bag fixing seat on the cover seat and prevent it from falling off by itself, which facilitates the installation and fixing of the inner lining bag.

[0006] Preferably, an anti-rotation structure is provided between the inner liner bag fixing seat and the lid seat. By providing the anti-rotation structure, the inner liner bag fixing seat and the liner bag can be prevented from rotating relative to the lid seat when the lid is rotated, thus ensuring the firmness of the lid installation.

[0007] Preferably, the anti-rotation structure includes at least one limiting groove arranged around the circumference on the outer protruding edge of the cover seat and a limiting protrusion matching the limiting groove arranged on the inner top of the flange. When the inner lining bag fixing seat is on the upper side of the cover seat, the limiting groove and the limiting protrusion are engaged, and the structure is simple.

[0008] Preferably, the bucket lid has an outward folded edge near the edge, which covers and limits the flanged part, thereby improving the sealing between the bucket lid and the lid seat.

[0009] Preferably, the lid and the lid seat are connected by an arc thread, and the surface of the arc thread is polished to prevent damage to the inner liner bag when the lid and the lid seat are threaded together. This provides a large locking torque and good sealing performance.

[0010] Preferably, the inner lining bag fixing seat is provided with a side extension extending radially to one side along the through hole, and the side extension is provided with a hanging hole to facilitate the operation and placement of the inner lining bag fixing seat. The hanging hole facilitates the placement and hanging of the inner lining bag fixing seat and has an anti-loss function.

[0011] Preferably, the inner lining bag and the connecting ring are heat-fused together to ensure the connection strength of the inner lining bag.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] With a simple structure, the inner liner bag can be fixed by setting an inner liner bag fixing seat. The inner liner bag fixing seat is equipped with a film part and a connecting ring, which facilitates the stable installation of the inner liner bag. The film part does not affect the threaded fit between the lid and the lid seat, and the original lid and lid seat can be used for connection, ensuring the connection strength between the lid and lid seat. The modification cost is low, the inner liner bag will not fall off, the sealing performance is good, and the original function of the steel drum is retained. Attached Figure Description

[0014] Figure 1 This is a front sectional view of the assembled structure of this utility model;

[0015] Figure 2 This is a front sectional view of the inner lining bag fixing seat of this utility model;

[0016] Figure 3 This is a top view of the cover of this utility model;

[0017] Figure 4This is a top view of the inner lining bag fixing seat of this utility model;

[0018] Figure 5 for Figure 1 Enlarged structural diagram at point B.

[0019] Figure label:

[0020] 1. Inner liner bag fixing seat, 11. Beveled edge, 12. Limiting protrusion, 13. Flanged edge, 14. Side extension, 15. Hanging hole, 16. Through hole, 17. Film part, 18. Connecting ring, 2. Bucket lid, 21. Outer folded edge, 3. Inner liner bag, 4. Lid seat, 41. Outer protruding edge, 42. Limiting groove, A. Steel bucket. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figure 1-5 As shown, this utility model provides a solution to the problem that existing bucket lids cannot securely connect to the lid seat when the inner liner bag is fixed on the lid seat. The utility model provides the following technical solution: an installation structure for an environmentally friendly inner liner bag on a steel bucket, including a lid seat 4 mounted on a steel bucket A and a bucket lid 2 matching the lid seat 4. The structure is characterized by further including an inner liner bag fixing seat 1, sleeved on the upper side of the lid seat 4. The inner liner bag fixing seat 1 has a through hole 16 matching the lid seat 4, and a thin film portion 17 extending downward through the lid seat 4 is connected to the inner wall of the through hole 16. The lower end is provided with a connecting ring 18, which is connected to the inner liner bag 3 inside the steel drum A. The drum lid 2 is set on the upper side of the inner liner bag fixing seat 1 and partially passes through the through hole 16 to be threadedly connected to the inner side wall of the lid seat 4. The film part 17 is sandwiched between the drum lid 2 and the lid seat 4. The inner liner bag can be fixed by setting the inner liner bag fixing seat. The film part 17 does not affect the threaded fit between the drum lid 2 and the lid seat 4. The original drum lid 2 and lid seat 4 can be used for the fit and connection, which ensures the connection strength between the drum lid 2 and the lid seat 4. The inner liner bag 3 will not fall off and the sealing performance is good.

[0023] Specifically, both the lid seat 4 and the lid 2 adopt the original structure of the steel barrel, so threads are provided on the outer side of the lid 2 and the inner sidewall of the lid seat 4. The upper end of the film part 17 is heat-fused or press-fitted to the inner sidewall of the through hole 16. The film part 17 is relatively thin, and its function is to connect the inner liner bag 3 to the inner liner bag fixing seat 1. The film part 17, when clamped between the lid seat 4 and the lid 2, does not affect the threaded fit between the lid seat 4 and the lid 2.

[0024] The inner liner bag 3 can be made of various materials. Polyethylene (PE) is commonly used for containing dry, non-corrosive powders or granules. Polypropylene (PP) liner bags, with a thickness of approximately 0.08 mm to 0.2 mm, are generally stronger than PE and can be used in applications requiring abrasion resistance. The inner liner bag 3 can be heat-fused or bonded to the connecting ring 18, resulting in high strength. The connecting ring 18 is made of a soft, elastic material, such as plastic, which deforms when placed in the cover 4 and expands on its own, making it easy to replace or disassemble the inner liner bag 3.

[0025] Setting an inner liner bag 3 between the lid seat 4 and the lid 2 can also improve the sealing between the lid seat 4 and the lid 2. The inner liner bag fixing seat 1 and the inner liner bag 3 are fixedly connected. There are many ways to connect them, such as adhesive connection, heat fusion connection or crimping, as long as it does not affect the installation of the lid 2.

[0026] The inner liner bag holder 1 can be made relatively thin, and it will not move after being pressed down by the bucket lid 2. When using it, first put the inner liner bag 3 into the steel bucket A, then limit the inner liner bag holder 1 on the lid seat 4, and then install the bucket lid 2. If you need to replace the inner liner bag 3, you can simply lift the inner liner bag holder 1, which is very convenient.

[0027] In this embodiment, as Figure 1-2 As shown, the outer side of the inner lining bag fixing seat 1 is provided with a flanged portion 13, and the lower inner side of the flanged portion 13 is provided with a beveled fastening portion 11. The flanged portion 13 covers the upper edge of the cover seat 4, and the beveled fastening portion 11 fastens with the outer protruding edge 41 of the cover seat 4. The beveled fastening portion 11 and the flanged portion 13 allow the inner lining bag fixing seat 1 to be quickly positioned on the cover seat 4 and prevent it from falling off by itself, facilitating the installation and fixing of the inner lining bag 3. When installing the inner lining bag fixing seat 1... Place the inner lining bag fixing seat 1 on the cover seat 4 and press it down. Since the inner lining bag fixing seat 1 is generally made of plastic material, the flange 13 and the beveled edge 11 have a certain elasticity and can deform to fasten the outer protrusion 41 of the cover seat 4. The outer protrusion 41 of the cover seat 4 is also a pre-existing structure. The surface of the outer protrusion 41 is an arc surface. After contacting the beveled edge 11, it can make the beveled edge 11 open outward. The installation method is relatively simple.

[0028] In this embodiment, as Figure 2-4As shown, an anti-rotation structure is provided between the inner liner bag fixing seat 1 and the cover seat 4. By setting the anti-rotation structure, the inner liner bag fixing seat 1 and the liner bag 3 can be prevented from rotating relative to the cover seat 4 when the lid 2 rotates, thus ensuring the firmness of the lid 2 installation. There are many types of anti-rotation structures, such as grooves and protrusions. For example, the anti-rotation structure includes at least one limiting groove 42 arranged around the circumference on the outer protruding edge 41 of the cover seat 4 and a limiting protrusion 12 that matches the limiting groove 42 and is provided on the inner top of the flange 13. When the inner liner bag fixing seat 1 is placed on the upper side of the cover seat 4, the limiting groove 42 and the limiting protrusion 12 are engaged. The structure is simple, and two or four limiting grooves 42 and limiting protrusions 12 can be provided.

[0029] In this embodiment, as Figure 2 As shown, an outer folded edge 21 is provided on the barrel lid 2 near the edge. The outer folded edge 21 covers and limits the flange 13, which can improve the sealing between the barrel lid 2 and the lid seat 4. The outer folded edge 21 of the barrel lid 2 is an existing structure and is an existing barrel lid 2. By using the existing outer folded edge 21 in conjunction with the flange 13, the amount of dust and other impurities entering between the barrel lid 2 and the flange 13 can be reduced.

[0030] In this embodiment, in order to improve the connection strength between the lid 2 and the lid seat 4, the lid 2 and the lid seat 4 are connected by an arc thread, and the surface of the arc thread is polished to prevent damage to the inner liner bag 3 when the lid 2 and the lid seat 4 are threaded together. The locking torque is large and the sealing performance is good.

[0031] like Figure 1-4 As shown, the inner lining bag fixing seat 1 is provided with a side extension 14 extending radially to one side along the through hole 16. The side extension 14 is provided with a hanging hole 15, which facilitates the operation and placement of the inner lining bag fixing seat 1. The hanging hole 15 facilitates the placement and hanging of the inner lining bag fixing seat 1 and has an anti-loss function. When using the inner lining bag fixing seat 1, the side extension 14 can be held to place the inner lining bag fixing seat 1 on the cover seat 4.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An installation structure for an environmentally friendly inner liner bag for a steel drum, comprising a cover seat (4) disposed on a steel drum (A) and a drum lid (2) matching the cover seat (4), characterized in that, It also includes an inner liner bag fixing seat (1), which is sleeved on the upper side of the cover seat (4). The inner liner bag fixing seat (1) has a through hole (16) that matches the cover seat (4). A film part (17) extending downward through the cover seat (4) is connected to the inner wall of the through hole (16). A connecting ring (18) is provided at the lower end of the film part (17). The connecting ring (18) is connected to the inner liner bag (3) inside the steel drum (A). The drum lid (2) is set on the upper side of the inner liner bag fixing seat (1) and partially passes through the through hole (16) and is threaded to the inner wall of the cover seat (4), and the film part (17) is sandwiched between the drum lid (2) and the cover seat (4).

2. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 1, characterized in that: The outer side of the inner lining bag fixing seat (1) is provided with a flange (13), and the lower inner side of the flange (13) is provided with a beveled edge (11). The flange (13) covers the upper edge of the cover seat (4) and the beveled edge (11) is fastened to the outer protruding edge (41) of the cover seat (4).

3. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 2, characterized in that: An anti-rotation structure is provided between the inner lining bag fixing seat (1) and the cover seat (4).

4. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 3, characterized in that: The anti-rotation structure includes at least one limiting groove (42) arranged around the circumference on the outer protruding edge (41) of the cover (4) and a limiting protrusion (12) matching the limiting groove (42) arranged on the inner top of the flange (13). When the inner lining bag fixing seat (1) is placed on the upper side of the cover (4), the limiting groove (42) and the limiting protrusion (12) are engaged.

5. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 3, characterized in that: The lid (2) has an outer folded edge (21) near the edge, which covers and limits the flange (13).

6. The installation structure of the environmentally friendly inner liner bag for steel drums according to any one of claims 1-4, characterized in that: The barrel lid (2) and the lid seat (4) are connected by an arc thread, and the surface of the arc thread is polished.

7. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 5, characterized in that: The inner lining bag fixing seat (1) is provided with a side extension (14) extending radially to one side along the through hole (16), and the side extension (14) is provided with a hanging hole (15).

8. The installation structure of the environmentally friendly inner liner bag for steel drums according to claim 1, characterized in that: The inner lining bag (3) is heat-fused to the connecting ring (18).

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