A paper bucket screw buckle type sealing and paper bucket

Abstract

The utility model relates to paper bucket sealing technology field especially relates to a paper bucket spiral buckle type sealing and paper bucket, include: paper bucket body, the paper bucket body top is provided with annular gap, the plugging piece, connecting piece, the outer surface of connecting piece with the inner surface of plugging piece all is equipped with thread groove, plugging piece passes through thread groove with connecting piece thread connection for realizing plugging piece with paper bucket body's detachable connection. The utility model is through the paper bucket body of high -strength corrugated paper system, the plugging piece of high -density polyethylene material, the plastic connecting piece of thread groove and cover in annular gap to constitute, and the restriction piece that is composed of T -shaped pole and spring, realizes detachable sealing through thread connection, and the design of double sealing ring improves the sealing property, and elastic limiting mechanism prevents loosening, compared with traditional sealing has the advantage such as convenient opening, reusable, high connection strength, good sealing performance, is applicable to raw material, food and other need high sealing property packing scene.

Description

Technical Field

[0001] This utility model relates to the field of paper drum sealing technology, and in particular to a spiral buckle sealing method for paper drums and a paper drum. Background Technology

[0002] In the packaging industry, paper drums are widely used for packaging raw materials, food, and other products due to their advantages such as environmental friendliness and low cost. However, traditional paper drums mostly use snap-on or adhesive sealing, which has obvious drawbacks: snap-on seals are cumbersome to open and the snaps are easily damaged after repeated use; adhesive seals are difficult to maintain their sealing performance for a long time, cannot be reused, and can cause pollution after disposal. In addition, if threads are directly machined into the paper material, stripping is likely to occur, resulting in insufficient connection strength and failing to guarantee a good sealing effect over a long period of time; during transportation and storage, traditional paper drum seals lack effective anti-loosening measures, and are easily loosened by vibration and collision, causing leakage or contamination of the contents. Utility Model Content

[0003] The purpose of this utility model is to provide a spiral-locked sealing method for paper drums and a paper drum itself, which solves the problem that the sealing of paper drums is prone to loosening, leakage of contents, or contamination due to the lack of effective anti-loosening measures during transportation and storage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A screw-lock sealing method for paper drums includes:

[0006] The paper drum body has an annular notch at its top.

[0007] Sealing components;

[0008] The connector has threaded grooves on both its outer surface and the inner surface of the sealing member. The sealing member is threadedly connected to the connector through the threaded grooves to achieve a detachable connection between the sealing member and the paper drum body.

[0009] A limiting element is provided on the surface of the connector to limit the rotational position of the sealing element and prevent the sealing element from accidentally loosening.

[0010] Preferably, the connector is an annular structure with an annular groove at its bottom; the connector is fitted onto the surface of the annular notch through the annular groove; both the annular notch and the paper drum body are made of paper material, and the connector is made of plastic material; by fitting the connector onto the annular notch, the annular notch can be protected to prevent deformation, while also enhancing the connection strength between the sealing component and the paper drum body.

[0011] Preferably, the annular groove of the connector is uniformly provided with vertical rods, and the outer surface of the annular notch is uniformly provided with vertical grooves corresponding to the vertical rods; when the connector is fitted onto the surface of the annular notch, the vertical rods are inserted into the vertical grooves, and the connector and the annular notch are bonded together with glue to further enhance the connection stability between the connector and the annular notch.

[0012] Preferably, the top of the connector is provided with a second connecting groove, and a second sealing ring is bonded in the second connecting groove to enhance the sealing performance between the connector and the sealing member.

[0013] Preferably, the inner wall of the sealing component is provided with a first connecting groove, and a first sealing ring is rotatably connected in the first connecting groove; when the sealing component is threaded onto the connecting component, the first sealing ring contacts the second sealing ring, and the first sealing ring can rotate, thereby avoiding the second sealing ring from directly contacting the sealing component during the rotation of the sealing component and causing wear, thus extending the service life of the sealing component.

[0014] Preferably, the limiting member includes a T-shaped rod; the bottom of the connecting member is provided with an annular protrusion, and a limiting groove is formed on the surface of the annular protrusion; the T-shaped rod is slidably connected in the limiting groove and extends upward through the limiting groove; a spring is fixedly installed at the bottom of the T-shaped rod, and the end of the spring away from the T-shaped rod is fixedly connected to the limiting groove; the top of the T-shaped rod is provided with an inclined surface, and the bottom end of the sealing member is uniformly provided with limiting holes corresponding to the T-shaped rod; when the sealing member is tightened to the connecting member, the T-shaped rod springs up under the action of the spring, and its top inclined surface cooperates with the limiting holes to limit the rotation of the sealing member and prevent the sealing member from loosening.

[0015] A paper drum, including a screw-lock seal.

[0016] This utility model has at least the following beneficial effects:

[0017] The packaging consists of a high-strength corrugated paper drum body, a high-density polyethylene sealing component, a threaded groove plastic connector fitted into an annular notch, and a limiting component composed of a T-shaped rod and a spring. It achieves a detachable seal through threaded connection, and the double sealing ring design improves the sealing performance. The elastic limiting mechanism prevents loosening. Compared with traditional sealing, it has advantages such as easy opening, reusability, high connection strength, and good sealing performance. It is suitable for packaging scenarios that require high sealing performance, such as raw materials and food. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the annular notch structure of this utility model;

[0021] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a sectional view of the connector of this utility model;

[0023] Figure 5 This is a cross-sectional view of the sealing component of this utility model.

[0024] In the figure: 1. Paper tube body; 11. Annular notch; 12. Vertical groove; 2. Sealing component; 21. First connecting groove; 22. Restricting hole; 3. Connecting component; 31. Annular groove; 32. Vertical rod; 33. Restricting groove; 34. Second connecting groove; 4. Restricting component; 41. T-block; 42. Spring; 5. First sealing ring; 6. Second sealing ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Reference Figure 1-5 A spiral-lock sealing method for paper drums, comprising:

[0028] The paper drum body has an annular notch 11 at the top. The paper drum body is preferably made of high-strength corrugated paper, which has good compression resistance and forming performance.

[0029] The sealing component 2 is made of high-density polyethylene, which has high strength, chemical corrosion resistance and good processing performance, making it easy to mold and thread.

[0030] The connector 3 has threaded grooves on both its outer surface and the inner surface of the sealing member 2. The sealing member 2 is threadedly connected to the connector 3 through the threaded grooves to achieve a detachable connection between the sealing member 2 and the paper drum body.

[0031] The limiting member 4 is provided on the surface of the connecting member 3 to limit the rotation position of the sealing member 2 and prevent the sealing member 2 from being accidentally loosened.

[0032] The sealing element 2 is detachably connected to the paper drum body via a threaded connection, and a restraining element 4 is provided to prevent accidental loosening. Compared with traditional snap-on or adhesive sealing, this structure has the advantages of easy opening and reusability, while the threaded connection provides more stable connection strength and better sealing performance.

[0033] Furthermore, the connector 3 has an annular structure with an annular groove 31 at its bottom; the connector 3 is fitted onto the surface of the annular notch 11 through the annular groove 31; both the annular notch 11 and the paper drum body are made of paper material, while the connector 3 is made of plastic material; by fitting the connector 3 onto the annular notch 11, the annular notch 11 can be protected to prevent deformation, while also enhancing the connection strength between the sealing component 2 and the paper drum body.

[0034] The plastic connector 3 is set on the annular notch 11 of the paper, forming a "hard-encased soft" structure. This not only protects the easily deformable paper part, but also provides a stronger foundation for the threaded connection through the plastic part, solving the problem of easy stripping of the threads when the threads of the traditional paper drum are directly cut into the paper material.

[0035] Furthermore, vertical rods 32 are uniformly arranged inside the annular groove 31 of the connector 3, and vertical grooves 12 corresponding to the vertical rods 32 are uniformly opened on the outer surface of the annular notch 11. When the connector 3 is sleeved on the surface of the annular notch 11, the vertical rods 32 are inserted into the vertical grooves 12, and the connector 3 and the annular notch 11 are bonded together with glue to further enhance the connection stability between the connector 3 and the annular notch 11.

[0036] The mating structure of the vertical rod 32 and the vertical groove 12, combined with adhesive bonding, significantly improves the connection strength between the connector 3 and the paper drum body. The mating of the vertical rod 32 and the vertical groove 12 not only provides circumferential positioning to prevent the connector 3 from rotating relative to the paper drum body, but also disperses the force, avoiding connection failure caused by local stress concentration.

[0037] Furthermore, the top of the connector 3 is provided with a second connecting groove 34, and a second sealing ring 6 is bonded in the second connecting groove 34 to enhance the sealing performance between the connector 3 and the sealing member 2. The second sealing ring 6 is made of nitrile rubber.

[0038] A second sealing ring 6 is provided at the top of the connector 3, which further improves the sealing performance of the paper drum. The second sealing ring 6 fills the gap between the connector 3 and the sealing element 2, effectively preventing liquid or gas leakage, and is particularly suitable for packaging raw materials, food and other products with high sealing requirements.

[0039] Furthermore, the inner wall of the sealing component 2 is provided with a first connecting groove 21, and a first sealing ring 5 is rotatably connected in the first connecting groove 21. The first sealing ring 5 is made of polytetrafluoroethylene. When the sealing component 2 is threaded onto the connecting component 3, the first sealing ring 5 contacts the second sealing ring 6, and the first sealing ring 5 can rotate, thereby preventing the second sealing ring 6 from directly contacting the sealing component 2 during the rotation of the sealing component 2 and causing wear, thus extending the service life of the sealing component.

[0040] By incorporating a rotatable first sealing ring 5, the problem of easy wear of the sealing ring in traditional sealing structures is solved. During the tightening process of the sealing component 2, the first sealing ring 5 rotates due to friction after contacting the second sealing ring 6, significantly reducing wear, extending the service life of the sealing component, and ensuring long-term sealing performance.

[0041] Furthermore, the limiting member 4 includes a T-shaped rod; the bottom of the connecting member 3 is provided with an annular protrusion, and the surface of the annular protrusion is provided with a limiting groove 33; the T-shaped rod is slidably connected in the limiting groove 33 and extends upward through the limiting groove 33; a spring 42 is fixedly installed at the bottom of the T-shaped rod, and the end of the spring 42 away from the T-shaped rod is fixedly connected to the limiting groove 33; the top of the T-shaped rod is provided with a slope, and the bottom end of the sealing member 2 is evenly provided with limiting holes 22 corresponding to the T-shaped rod; when the sealing member 2 is tightened to the connecting member 3, the T-shaped rod springs up under the action of the spring 42, and its top slope cooperates with the limiting hole 22 to limit the rotation of the sealing member 2 and prevent the sealing member 2 from loosening.

[0042] The elastic limiting mechanism composed of the T-shaped rod and spring 42 automatically engages with the limiting hole 22 after the sealing component 2 is tightened, forming a mechanical lock. This structure effectively prevents the sealing component 2 from loosening due to vibration or collision during transportation or storage of the paper drum, ensuring the safety of the contents of the paper drum. The sealing component 2 is tightened by rotating clockwise. When the tightening is almost complete, the sealing component 2 will squeeze the inclined surface of the T-shaped rod, causing it to retract against the elastic force of the spring 42. After the sealing component 2 is tightened, the T-shaped rod will extend into the limiting hole 22 under the action of the spring 42, thus preventing the sealing component 2 from rotating counterclockwise directly, forming a snap-fit ​​installation effect. This avoids the sealing component 2 automatically rotating counterclockwise, which would lead to poor sealing. When it is necessary to rotate the sealing component 2 counterclockwise, manually press the T-shaped rod downward to disengage it from the limiting hole 22, and then rotate the sealing component 2 counterclockwise.

[0043] A paper drum, including a screw-lock seal.

[0044] In summary, align the annular groove 31 of the connector 3 with the annular notch 11 at the top of the paper drum body, so that the vertical rod 32 inside the connector 3 is embedded in the vertical groove 12 on the outer surface of the annular notch 11. After pressing it circumferentially until it is completely fitted, apply glue evenly to the contact surface to fix it, forming a "hard-wrapped soft" protective structure.

[0045] A second sealing ring 6 made of nitrile rubber is bonded to the second connecting groove 34 at the top of the connector 3, while a first sealing ring 5 made of polytetrafluoroethylene is rotated and installed in the first connecting groove 21 on the inner wall of the sealing component 2, ensuring that the contact surfaces of the two sealing rings are smooth and free of impurities.

[0046] Align the inner threaded groove of the sealing component 2 with the outer threaded groove of the connector 3, and slowly tighten the sealing component 2 clockwise.

[0047] After the sealing component 2 is tightened into place, the T-shaped rod automatically springs up under the action of the spring 42, and its top inclined surface is inserted into the limiting hole 22 to form a mechanical lock, preventing the sealing component 2 from rotating counterclockwise due to vibration.

[0048] When the paper drum needs to be opened, press the T-shaped rod downwards with your finger to overcome the elastic force of the spring 42 and retract it. After it is disengaged from the limiting hole 22, rotate the sealing part 2 counterclockwise to remove it.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spiral-lock sealing method for paper drums, comprising: Paper drum body (1), the top of which is provided with an annular notch (11). Sealing component (2); The connector (3) has threaded grooves on both its outer surface and the inner surface of the sealing member (2). The sealing member (2) is threadedly connected to the connector (3) through the threaded grooves to achieve a detachable connection between the sealing member (2) and the paper drum body (1). A limiting member (4) is provided on the surface of the connecting member (3) to limit the rotation position of the sealing member (2) and prevent the sealing member (2) from being accidentally loosened.

2. A paper tub screw cap closure according to claim 1, wherein, The connector (3) is a ring structure with an annular groove (31) at its bottom; the connector (3) is fitted onto the surface of the annular notch (11) through the annular groove (31); the annular notch (11) and the paper drum body (1) are both made of paper material, and the connector (3) is made of plastic material.

3. A paper carton screw cap closure according to claim 2, wherein, The annular groove (31) of the connector (3) is uniformly provided with vertical rods (32), and the outer surface of the annular notch (11) is uniformly provided with vertical grooves (12) corresponding to the vertical rods (32).

4. A paper carton screw closure according to claim 3, wherein The connector (3) has a second connecting groove (34) at the top, and a second sealing ring (6) is bonded inside the second connecting groove (34).

5. A paper carton screw closure according to claim 4, wherein The inner wall of the sealing member (2) is provided with a first connecting groove (21), and a first sealing ring (5) is rotatably connected in the first connecting groove (21); when the sealing member (2) is threaded onto the connecting member (3), the first sealing ring (5) contacts the second sealing ring (6).

6. A spiral-lock sealing method for paper drums according to claim 1, characterized in that, The limiting member (4) includes a T-shaped rod (41); the connecting member (3) has an annular protrusion at the bottom, and a limiting groove (33) is opened on the surface of the annular protrusion; the T-shaped rod (41) is slidably connected in the limiting groove (33) and passes through the limiting groove (33) upward; a spring (42) is fixedly installed at the bottom of the T-shaped rod (41), and the end of the spring (42) away from the T-shaped rod (41) is fixedly connected to the limiting groove (33); the top of the T-shaped rod (41) has an inclined surface, and the bottom end of the sealing member (2) is evenly provided with limiting holes (22) corresponding to the T-shaped rod (41).

7. A paper drum, characterized in that, Includes the spiral-lock seal for paper drums as described in any one of claims 1 to 6.

Images