Sealing bolt for packaging box

Abstract

The utility model relates to the field of packaging box assembling, and discloses a sealing bolt for a packaging box, which comprises a lower bolt end head, an annular clamping groove is arranged on the top surface of the lower bolt end head, a concave sealing ring is clamped in the annular clamping groove, the top end of the lower bolt end head is fixedly connected with a threaded sleeve, and the threaded sleeve is fixedly connected with the lower bolt end head. A threaded groove is formed in the threaded sleeve, a sliding column groove is formed in the top end of the threaded groove, a slope surface is arranged on the outer side of the top end of the threaded sleeve, a threaded column is in threaded connection with the interior of the threaded groove, and an upper bolt end is fixedly connected to the top end of the threaded column. According to the utility model, through the arrangement of the annular fixing groove, the slope surface and the sliding column groove, when the bolt is tightened, the threaded sleeve extrudes the extrusion rubber ring, so that the extrusion rubber ring deforms and fills the gap, and meanwhile, the concave sealing ring is arranged to perform twice sealing inside and outside the bolt, so that the sealing effect is improved, and the bolt does not protrude out of the surface of the nut and is more attractive.

Description

Technical Field

[0001] The utility model relates to the field of packaging box assembly, in particular to a sealing bolt used for the packaging box. Background Art

[0002] A packing box is a kind of container that is processed and manufactured to hold various items and facilitates transportation. It can be used for product packaging as well as container loading and storage in logistics transportation. A sealing bolt is a bolt with good sealing performance and a high-strength connection element that can prevent liquid or gas from leaking between two connected parts.

[0003] Some packaging boxes require a good sealing environment when in use. For this purpose, sealing bolts are needed to assemble the components to ensure the sealing performance of the joints.

[0004] A sealing bolt is usually composed of a bolt body, a washer and a nut. When fixing, the washer needs to be put on the bolt and then the nut needs to be tightened to make the washer deformed by extrusion and fill the gap in the bolt to achieve a good sealing effect. However, in actual use, the sealing washer is put on the bolt many times, which is not only troublesome to assemble, but also the contact between the sealing washer and the bolt is not tight enough, and the bolt is easy to protrude from the surface after tightening, resulting in an unsightly packaging box. Therefore, a sealing bolt for a packaging box is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a sealing bolt for a packaging box, aiming to improve the problems in the prior art such as insufficient fit between the sealing gasket and the bolt, average sealing effect, and the unsightly surface of the bolt protruding from the nut.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealing bolt for a packaging box, comprising a lower bolt end, the top surface of the lower bolt end is provided with an annular groove, a concave sealing ring is clamped inside the annular groove, the top of the lower bolt end is fixedly connected to a threaded sleeve, a threaded groove is provided inside the threaded sleeve, a sliding column groove is provided at the top of the threaded groove, a slope surface is provided on the outer side of the top of the threaded sleeve, a threaded column is threadedly connected inside the threaded groove, the top of the threaded column is fixedly connected to an upper bolt end, the bottom of the upper bolt end is provided with an annular fixing groove, and a sealing assembly is clamped inside the annular fixing groove.

[0007] As a further description of the above technical solution:

[0008] The threaded sleeve comprises an alloy cylinder body, an anti-oxidation layer is arranged on the outer side of the alloy cylinder body, a nano-hydrophobic layer is arranged on the outer side of the anti-oxidation layer, and a paint layer is arranged on the outer side of the nano-hydrophobic layer.

[0009] As a further description of the above technical solution:

[0010] The inner side of the concave sealing ring contacts the outer periphery of the threaded sleeve.

[0011] As a further description of the above technical solution:

[0012] The inner diameter of the sliding column groove is slightly larger than the diameter of the threaded column.

[0013] As a further description of the above technical solution:

[0014] The sealing assembly comprises a fixed rubber ring, the outer periphery of which is clamped in the inner part of the annular fixed groove, and the bottom end of the fixed rubber ring is fixedly connected with an extrusion rubber ring.

[0015] As a further description of the above technical solution:

[0016] The inner side of the extruded rubber ring contacts the outer side of the slope surface.

[0017] As a further description of the above technical solution:

[0018] The fixed rubber ring, the extruded rubber ring and the concave sealing ring are made of silicone rubber with certain elasticity and deformation ability.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, by providing an annular fixing groove, a slope surface, and a sliding column groove, when tightening the bolt, the threaded sleeve squeezes the extrusion rubber ring, causing the extrusion rubber ring to deform and fill the gap. At the same time, a concave sealing ring is provided to perform two seals inside and outside the bolt, thereby improving the sealing effect, and the bolt will not protrude from the surface of the nut, which is more beautiful.

[0021] 2. In the utility model, an anti-oxidation layer, a nano-hydrophobic layer and a paint layer are provided to prevent the threaded sleeve from contacting with air and water. In addition, the sealing rubber rings at both ends of the sealing sleeve cooperate to prevent rust from occurring between the thread groove and the thread column. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall front view of a sealing bolt for a packaging box proposed by the utility model;

[0023] Figure 2 This is a front cross-sectional schematic diagram of a threaded sleeve for a sealing bolt of a packaging box proposed by the utility model;

[0024] Figure 3 This is a front cross-sectional schematic diagram of a threaded column of a sealing bolt for a packaging box proposed by the utility model;

[0025] Figure 4 The utility model is a partial front view of a threaded sleeve of a sealing bolt for a packaging box.

[0026] Legend:

[0027] 1. Lower bolt end; 2. Annular groove; 3. Concave sealing ring; 4. Threaded sleeve; 5. Threaded groove; 6. Sliding column groove; 7. Slope surface; 8. Threaded column; 9. Upper bolt end; 10. Annular fixing groove; 11. Fixed rubber ring; 12. Extrusion rubber ring; 13. Alloy cylinder; 14. Anti-oxidation layer; 15. Nano-hydrophobic layer; 16. Paint layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 2 The utility model provides an embodiment: a sealing bolt for a packaging box, comprising a lower bolt end 1 that is convenient for screwing, a ring-shaped groove 2 is provided on the top surface of the lower bolt end 1, a concave sealing ring 3 is clamped inside the annular groove 2, the waist of the concave sealing ring 3 is recessed inward, which is convenient for clamping with the annular groove 2, a threaded sleeve 4 is fixedly connected to the top of the lower bolt end 1, the inner side of the concave sealing ring 3 contacts the outer periphery of the threaded sleeve 4, so that the contact area between the concave sealing ring 3 and the threaded sleeve 4 is increased, a threaded groove 5 is provided inside the threaded sleeve 4, a sliding column groove 6 is provided on the top of the threaded groove 5, and a slope surface 7 is provided on the outer side of the top of the threaded sleeve 4.

[0030] Reference Figure 1-Figure 3The threaded column 8 is connected to the inner thread of the threaded groove 5. The threaded column 8 and the threaded groove 5 rotate relative to each other, so that the threaded column 8 can move up and down along the inner wall of the threaded groove 5. The top of the threaded column 8 is fixedly connected to an upper bolt head 9 for easy screwing. The bottom of the upper bolt head 9 is provided with an annular fixing groove 10. The inner diameter of the sliding column groove 6 is slightly larger than the diameter of the threaded column 8, so that the top of the threaded sleeve 4 can slide into the inner part of the annular fixing groove 10. A sealing component that increases the sealing performance is clamped inside the annular fixing groove 10. The sealing component includes a fixed rubber ring 11, a fixed The outer periphery of the fixed rubber ring 11 is clamped in the inside of the annular fixing groove 10, and the bottom end of the fixed rubber ring 11 is fixedly connected with an extruded rubber ring 12. The extruded rubber ring 12 protrudes from the bottom of the upper bolt end 9, and the inner side of the extruded rubber ring 12 contacts the outer side of the slope surface 7. When the slope surface 7 moves upward, the extruded rubber ring 12 will be pushed outward along the slope. The fixed rubber ring 11, the extruded rubber ring 12 and the concave sealing ring 3 are made of silicone rubber with certain elasticity and deformation ability. When squeezed, they will deform, extend and fill the gap to achieve a sealing effect.

[0031] Reference Figure 1-Figure 3 The threaded sleeve 4 includes an alloy cylinder 13, and an anti-oxidation layer 14 that can isolate the air is arranged on the outside of the alloy cylinder 13 to prevent oxygen from contacting the alloy cylinder 13. A nano-hydrophobic layer 15 is arranged on the outside of the anti-oxidation layer 14. The nano-hydrophobic layer 15 is a very thin and dense transparent film material with extremely low surface energy and roughness. Its pore size is much smaller than that of water molecules, so that water cannot penetrate inward. A paint layer 16 is arranged on the outside of the nano-hydrophobic layer 15. The paint layer 16 not only improves the overall aesthetics of the sealing bolt, but also protects the internal coating and reduces the wear of the internal coating by particles in the environment.

[0032] Working principle: when you want to conveniently assemble the sealing bolt, first put the threaded sleeve 4 into the fixed hole, and then rotate the upper bolt end 9. The upper bolt end 9 drives the threaded column 8 to rotate, and the threaded column 8 moves downward inside the thread groove 5, so that the slope surface 7 contacts the extruded rubber ring 12, and the upper bolt end 9 continues to be rotated. The upper bolt end 9 continues to move downward. At this time, the slope surface 7 squeezes the extruded rubber ring 12 on the outside, and the packaging box also squeezes the extruded rubber ring 12 upward at the same time, so that the extruded rubber ring 12 is deformed, extending and filling the gap between the upper bolt end 9 and the packaging box. At the same time, extrusion is generated between the top of the concave sealing ring 3 and the packaging box, so that the concave sealing ring 3 is deformed and sealed, so that the sealing bolt is conveniently installed, and the inside and outside are sealed twice. The sealing ring and the bolt have a high degree of fit, and the sealing effect is better. When the bolts are not easily corroded, the paint layer 16 can protect the inner coating from being damaged, the nano-hydrophobic layer 15 prevents water from contacting the bolts and causing a galvanic reaction, and the anti-oxidation layer 14 can isolate the metal from the air and prevent oxidation, thereby protecting the bolts and reducing corrosion of the bolts.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing bolt for a packaging box, comprising a lower bolt head (1), characterized in that: The top surface of the lower bolt end (1) is provided with an annular groove (2), a concave sealing ring (3) is clamped inside the annular groove (2), a threaded sleeve (4) is fixedly connected to the top of the lower bolt end (1), a threaded groove (5) is provided inside the threaded sleeve (4), a sliding column groove (6) is provided at the top of the threaded groove (5), a ramp surface (7) is provided on the outer side of the top of the threaded sleeve (4), a threaded column (8) is threadedly connected inside the threaded groove (5), an upper bolt end (9) is fixedly connected to the top of the threaded column (8), an annular fixing groove (10) is provided at the bottom of the upper bolt end (9), a sealing component is clamped inside the annular fixing groove (10).

2. A sealing bolt for a packaging box according to claim 1, characterized in that: The threaded sleeve (4) comprises an alloy cylinder (13), an anti-oxidation layer (14) is arranged on the outside of the alloy cylinder (13), a nano-hydrophobic layer (15) is arranged on the outside of the anti-oxidation layer (14), and a paint layer (16) is arranged on the outside of the nano-hydrophobic layer (15).

3. A sealing bolt for a packaging box according to claim 1, characterized in that: The inner side of the concave sealing ring (3) contacts the outer periphery of the threaded sleeve (4).

4. A sealing bolt for a packaging box according to claim 1, characterized in that: The inner diameter of the sliding column groove (6) is slightly larger than the diameter of the threaded column (8).

5. The sealing bolt for a packaging box according to claim 1, characterized in that: The sealing assembly comprises a fixed rubber ring (11), the outer periphery of the fixed rubber ring (11) is clamped in the interior of the annular fixed groove (10), and the bottom end of the fixed rubber ring (11) is fixedly connected to an extrusion rubber ring (12).

6. A sealing bolt for a packaging box according to claim 5, characterized in that: The inner side of the extruded rubber ring (12) contacts the outer side of the slope surface (7).

7. A sealing bolt for a packaging box according to claim 5, characterized in that: The fixed rubber ring (11), the extruded rubber ring (12) and the concave sealing ring (3) are made of silicone rubber with certain elasticity and deformation ability.

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