Waterproof and corrosion-resistant container sealing strip
By employing a double-layer anti-corrosion coating and wear-resistant rubber pad design on the container sealing strip, the problem of insufficient waterproof and anti-corrosion performance of the sealing strip is solved, enhancing its waterproof and anti-corrosion performance and stability, and ensuring sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-07
AI Technical Summary
Existing container sealing strips have low waterproof and corrosion resistance, resulting in reduced sealing performance during maritime transport.
It adopts a double-layer anti-corrosion coating structure, including a fireproof and anti-corrosion inner coating and a waterproof and anti-corrosion outer coating. The inner and outer coatings are of equal thickness. Even after the outer layer is worn, the inner layer can still provide anti-corrosion protection. Combined with wear-resistant rubber pads and limiting protrusions, the sealing performance is enhanced.
It improves the waterproof and corrosion-resistant properties and stability of the sealing strip, reduces the weakening of the seal due to wear, and ensures the sealing effect during long-term transportation.
Smart Images

Figure CN224090884U_ABST
Abstract
Description
Technical Field
[0001] This utility model application relates to the field of sealing strip technology, specifically a waterproof and corrosion-resistant container sealing strip. Background Technology
[0002] Container sealing strips are a type of sealing material used for the door frames of shipping containers. They are mainly used to ensure the airtightness of the container and prevent goods from being affected by the external environment during transportation. They have functions such as shock absorption, waterproofing, sound insulation, heat insulation, dust prevention, and fixation, and can protect the safety of the goods inside the container. They are usually made of materials such as rubber and plastic and are widely used in various types of containers.
[0003] Many containers are transported by sea. During sea transport, they are easily exposed to seawater and are in a relatively humid environment for a long time. Existing container sealing strips have limited waterproof and anti-corrosion properties. During long-term sea transport, they are easily corroded, resulting in reduced sealing performance and thus reducing the protective effect of the container sealing strips. Summary of the Invention
[0004] To address the issue of low waterproof and corrosion-resistant performance of existing container sealing strips, this invention provides a waterproof and corrosion-resistant container sealing strip to solve the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A waterproof and corrosion-resistant container sealing strip includes a sealing strip body with engaging grooves at both its upper and lower ends. The sealing strip body includes a supporting rubber pad, an elastic rubber pad, a heat-insulating rubber pad, a wear-resistant rubber pad, a fire-retardant and corrosion-resistant inner coating, and a waterproof and corrosion-resistant outer coating. The supporting rubber pad is wrapped and fixed with an elastic rubber pad, the elastic rubber pad is wrapped and fixed with a heat-insulating rubber pad, the heat-insulating rubber pad is wrapped and fixed with a wear-resistant rubber pad, the wear-resistant rubber pad is coated with a fire-retardant and corrosion-resistant inner coating, and the fire-retardant and corrosion-resistant inner coating is coated with a waterproof and corrosion-resistant outer coating.
[0007] Furthermore, the sealing strip body has several fixing holes equidistantly arranged in the middle, and each fixing hole has a placement hole inside the sealing strip body at the bottom.
[0008] Furthermore, the sum of the thicknesses of each of the fixing holes and placement holes is equal to the distance between the upper and lower engagement grooves, and the length of the placement hole is less than the length inside the engagement groove.
[0009] Furthermore, symmetrical limiting protrusions are fixed to the inner wall of the engaging groove near the placement hole side. Each limiting protrusion is arc-shaped, and the length of each limiting protrusion is equal to the length of the sealing strip body.
[0010] Furthermore, the thickness of the elastic rubber pad is greater than the thickness of the heat-insulating rubber pad, the limiting protrusion is made of the same material as the elastic rubber pad, and the thickness of the wear-resistant rubber pad is greater than the thickness of the elastic rubber pad.
[0011] Furthermore, the thickness of the fireproof and corrosion-resistant inner coating is equal to the thickness of the waterproof and corrosion-resistant outer coating, and the sum of the thicknesses of the fireproof and corrosion-resistant inner coating and the waterproof and corrosion-resistant outer coating is equal to the thickness of the heat-insulating rubber pad.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, by using a double-layer anti-corrosion coating, when the outer anti-corrosion coating is worn or cracked during use, the inner anti-corrosion coating can still play an anti-corrosion role. This solves the problem of the low waterproof and anti-corrosion performance of existing container sealing strips, greatly improves the protective effect of container sealing strips, and also improves the stability of sealing strips during use.
[0014] 2. In this utility model, the wear-resistant rubber pad on the outermost layer can increase the overall wear resistance of the sealing strip. During long-term transportation, it can reduce the weakening of sealing performance caused by severe wear. When sealing, the sealing performance of the connection can be ensured by squeezing the elastic rubber pad, thereby further ensuring the sealing effect of the sealing strip. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a container sealing strip according to an embodiment of this application;
[0017] Figure 2 yes Figure 1 The schematic diagram shows a cross-sectional view of the container sealing strip structure in the embodiment shown.
[0018] Figure 3 yes Figure 1 A schematic cross-sectional view of the main structure of the sealing strip in the embodiment shown.
[0019] The meanings of the reference numerals in the figure are as follows: 1. Sealing strip body; 11. Supporting rubber pad; 12. Elastic rubber pad; 13. Heat insulation rubber pad; 14. Wear-resistant rubber pad; 15. Fireproof and anti-corrosion inner coating; 16. Waterproof and anti-corrosion outer coating; 2. Engaging groove; 3. Fixing hole; 4. Placement hole; 5. Limiting protrusion. Detailed Implementation
[0020] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] Reference Figure 1 , Figure 2 and Figure 3 A waterproof and corrosion-resistant container sealing strip includes a sealing strip body 1, with engaging grooves 2 at both the upper and lower ends. The sealing strip body 1 includes a supporting rubber pad 11, an elastic rubber pad 12, a heat-insulating rubber pad 13, a wear-resistant rubber pad 14, a fire-retardant and corrosion-resistant inner coating 15, and a waterproof and corrosion-resistant outer coating 16. The elastic rubber pad 12 is wrapped and fixed to the outer surface of the supporting rubber pad 11, and the heat-insulating rubber pad 13 is wrapped and fixed to the outer surface of the elastic rubber pad 12. The thickness of the elastic rubber pad 12 is greater than the thickness of the heat-insulating rubber pad 13. A limiting protrusion is included. 5. The same material as the elastic rubber pad 12, the heat insulation rubber pad 13 is wrapped and fixed with a wear-resistant rubber pad 14. The thickness of the wear-resistant rubber pad 14 is greater than the thickness of the elastic rubber pad 12. The outer surface of the wear-resistant rubber pad 14 is coated with a fireproof and anti-corrosion inner coating 15. The outer surface of the fireproof and anti-corrosion inner coating 15 is coated with a waterproof and anti-corrosion outer coating 16. The thickness of the fireproof and anti-corrosion inner coating 15 is equal to the thickness of the waterproof and anti-corrosion outer coating 16. The sum of the thicknesses of the fireproof and anti-corrosion inner coating 15 and the waterproof and anti-corrosion outer coating 16 is equal to the thickness of the heat insulation rubber pad 13.
[0022] Specifically, when the sealing strip body 1 is in normal use, the fireproof and anti-corrosion inner coating 15 and the waterproof and anti-corrosion outer coating 16 enhance the waterproof and anti-corrosion performance of the sealing strip body 1. When the waterproof and anti-corrosion outer coating 16 is worn or cracked, the inner fireproof and anti-corrosion inner coating 15 continues to provide anti-corrosion performance. When the box door is closed and sealed, the box door squeezes the supporting rubber pad 11, causing the sealing strip body 1 to deform, thereby making the box door and box body tightly connected to the sealing strip body 1, thus ensuring the sealing performance of the sealing strip body 1 during use.
[0023] As an optimization scheme, a number of fixing holes 3 are equidistantly opened in the middle of the sealing strip body 1. Each fixing hole 3 has a placement hole 4 inside the sealing strip body 1 at the bottom. The sum of the thickness of each fixing hole 3 and placement hole 4 is equal to the distance between the upper and lower locking grooves 2. The length of placement hole 4 is less than the length inside the locking groove 2. Limiting protrusions 5 are symmetrically fixed on the inner wall of the locking groove 2 near the placement hole 4. Each limiting protrusion 5 is set to be arc-shaped, and the length of each limiting protrusion 5 is equal to the length of the sealing strip body 1.
[0024] Specifically, when the sealing strip body 1 is installed, the engaging groove 2 without the limiting protrusion 5 is fitted onto the box body, and the bolts are tightened one by one to fix the fixing hole 3, the placement hole 4 and the inside of the box body, ensuring that the bolt heads can abut against the inside of the placement hole 4, thereby fixing the sealing strip body 1 to the box body. When the box door is closed, the side of the box door squeezes the limiting protrusions 5 on both sides, which can further increase the tightness of the connection between the box door and the inside of the engaging groove 2.
[0025] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A waterproof and corrosion-resistant container sealing strip, characterized in that: The sealing strip body (1) includes a locking groove (2) at both the upper and lower ends. The sealing strip body (1) includes a supporting rubber pad (11), an elastic rubber pad (12), a heat-insulating rubber pad (13), a wear-resistant rubber pad (14), a fireproof and anti-corrosion inner coating (15), and a waterproof and anti-corrosion outer coating (16). The supporting rubber pad (11) is wrapped and fixed with an elastic rubber pad (12). The elastic rubber pad (12) is wrapped and fixed with a heat-insulating rubber pad (13). The heat-insulating rubber pad (13) is wrapped and fixed with a wear-resistant rubber pad (14). The wear-resistant rubber pad (14) is coated with a fireproof and anti-corrosion inner coating (15). The fireproof and anti-corrosion inner coating (15) is coated with a waterproof and anti-corrosion outer coating (16).
2. The waterproof and corrosion-resistant container sealing strip according to claim 1, characterized in that: The sealing strip body (1) has several fixing holes (3) equidistantly arranged in the middle, and each fixing hole (3) has a placement hole (4) inside the sealing strip body (1) at the bottom of the sealing strip body (1).
3. The waterproof and corrosion-resistant container sealing strip according to claim 2, characterized in that: The sum of the thicknesses of each of the fixing holes (3) and the placement holes (4) is equal to the distance between the upper and lower locking grooves (2), and the length of the placement hole (4) is less than the length inside the locking groove (2).
4. The waterproof and corrosion-resistant container sealing strip according to claim 2, characterized in that: A limiting protrusion (5) is symmetrically fixed to the inner wall of the engaging groove (2) near the placement hole (4). Each limiting protrusion (5) is set to be arc-shaped, and the length of each limiting protrusion (5) is equal to the length of the sealing strip body (1).
5. The waterproof and corrosion-resistant container sealing strip according to claim 4, characterized in that: The thickness of the elastic rubber pad (12) is greater than the thickness of the heat insulation rubber pad (13), the limiting protrusion (5) is made of the same material as the elastic rubber pad (12), and the thickness of the wear-resistant rubber pad (14) is greater than the thickness of the elastic rubber pad (12).
6. The waterproof and corrosion-resistant container sealing strip according to claim 1, characterized in that: The thickness of the fireproof and anti-corrosion inner coating (15) is equal to the thickness of the waterproof and anti-corrosion outer coating (16), and the sum of the thicknesses of the fireproof and anti-corrosion inner coating (15) and the waterproof and anti-corrosion outer coating (16) is equal to the thickness of the heat-insulating rubber pad (13).