High-strength sealing rubber strip

Abstract

According to the high-strength sealing rubber strip, a sealing part is semicircular and is provided with a semicircular cavity, a V-shaped supporting strip is embedded into the sealing part, and meanwhile a stable triangular supporting system is formed by fixedly connecting a first hollow cylinder with the bottom wall of the cavity and fixedly connecting a second hollow cylinder with the arc-shaped wall face of the cavity; by means of the structure, external pressure can be effectively dispersed, the anti-pressure capacity of the rubber strip is remarkably improved, good shape stability can be kept even under the condition that the rubber strip bears large external force extrusion for a long time, and sealing failure caused by deformation is avoided; due to the combined design of the semicircular cavity and the V-shaped supporting strip, when the sealing rubber strip is extruded, the sealing rubber strip can be tightly attached to the sealing surface and fill gaps through elastic deformation of the cavity and the structural counter-acting force of the supporting strip, the sealing effect is greatly improved, and permeation of media such as water, dust and gas is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, and in particular to a high-strength sealing strip. Background Technology

[0002] In numerous fields such as construction, automotive, and machinery manufacturing, sealing strips are widely used as key materials to ensure the sealing and waterproofing of components. Existing sealing strips mostly use a single rubber material or a simple solid structure design, which has many limitations in practical use. On the one hand, when sealing strips are subjected to long-term external pressure and temperature changes, their elasticity and sealing performance will rapidly decline, leading to seal failure and causing problems such as leakage and dust intrusion, affecting the normal use of equipment or buildings. On the other hand, traditional sealing strips lack an effective support structure, making them prone to deformation or even breakage under significant external pressure, resulting in a short service life and frequent replacement, increasing maintenance costs and wasting resources. Utility Model Content

[0003] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a high-strength sealing strip.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-strength sealing strip includes an installation part and a sealing part. The sealing part has a semi-circular cross-section and a semi-circular cavity inside. A V-shaped support strip is provided inside the semi-circular cavity. A first hollow cylinder is provided at the lower end intersection of the V-shaped support strip. A second hollow cylinder is provided on both sides of the upper end of the V-shaped support strip. The first hollow cylinder is fixedly connected to the bottom wall of the semi-circular cavity, and the two second hollow cylinders are fixedly connected to the arc-shaped wall of the semi-circular cavity.

[0006] In some embodiments, the sealing portion includes an arc-shaped end and a horizontal bottom connected to the lower end of the arc-shaped end, the arc-shaped end and the horizontal bottom being connected to form the semi-circular cavity, the first hollow cylinder being connected to the horizontal bottom, and the second hollow cylinder being connected to the arc-shaped end.

[0007] In some embodiments, a third hollow cylinder is connected to both ends of the arc-shaped end and the horizontal bottom.

[0008] In some embodiments, the mounting portion includes an extension located below the horizontal bottom, with slots provided on both sides of the extension.

[0009] In some embodiments, an anti-slip layer is provided on the bottom wall of the card slot.

[0010] In some embodiments, the anti-slip layer is provided with a plurality of raised strips at intervals.

[0011] In some embodiments, a cavity is provided in the middle of the extension.

[0012] In some embodiments, a Teflon coating is sprayed onto the outer wall surface of the sealing portion.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The sealing part adopts a semi-circular shape and is provided with a semi-circular cavity. A V-shaped support strip is embedded inside. At the same time, the first hollow cylinder is fixedly connected to the bottom wall of the cavity, and the second hollow cylinder is fixedly connected to the arc-shaped wall of the cavity, forming a stable triangular support system. This structure can effectively disperse external pressure and significantly improve the pressure resistance of the rubber strip. Even under long-term exposure to large external pressure, it can maintain good shape stability and avoid sealing failure due to deformation.

[0015] 2. The combination design of the semi-circular cavity and the V-shaped support strip allows the sealing strip to fit tightly against the sealing surface and fill gaps when it is squeezed through the elastic deformation of the cavity and the structural reaction force of the support strip, which greatly improves the sealing effect and effectively prevents the penetration of media such as water, dust and gas.

[0016] 3. The hollow cylinder design not only enhances the connection strength between the V-shaped support strip and the main body of the sealing strip, but also reduces the overall weight of the sealing strip and reduces material fatigue wear. At the same time, the reasonable structural design reduces local stress concentration caused by external impact, extends the service life of the sealing strip, and reduces the replacement frequency and maintenance costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the sealing strip of this utility model;

[0018] Figure 2 This is a cross-sectional view of the sealing strip of this utility model. Detailed Implementation

[0019] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0020] like Figures 1-2A high-strength sealing strip is shown, comprising an installation part 1 and a sealing part 2. The sealing part 2 has a semi-circular cross-section and a semi-circular cavity 3 inside. A V-shaped support strip 4 is provided in the semi-circular cavity 3. A first hollow cylinder 5 is provided at the lower end intersection of the V-shaped support strip 4. A second hollow cylinder 6 is provided on both sides of the upper end of the V-shaped support strip 4. The first hollow cylinder 5 is fixedly connected to the bottom wall of the semi-circular cavity 3, and the two second hollow cylinders 6 are fixedly connected to the arc-shaped wall of the semi-circular cavity 3.

[0021] Furthermore, the sealing part 2 includes an arc-shaped end 21 and a horizontal bottom 22 connected to the lower end of the arc-shaped end 21. The arc-shaped end 21 and the horizontal bottom 22 are connected to form the semi-circular cavity 3. The first hollow cylinder 5 is connected to the horizontal bottom 22, and the second hollow cylinder 6 is connected to the arc-shaped end 21.

[0022] According to the above structure, the sealing part 1 adopts a semi-circular shape and is provided with a semi-circular cavity 3, with a V-shaped support strip 4 embedded inside. At the same time, it is fixedly connected to the bottom wall of the cavity by the first hollow cylinder 5 and the arc-shaped wall of the cavity by the second hollow cylinder 6, forming a stable triangular support system. This structure can effectively disperse external pressure and significantly improve the pressure resistance of the rubber strip. Even under long-term exposure to large external pressure, it can maintain good shape stability and avoid sealing failure due to deformation.

[0023] The combination design of the semi-circular cavity 3 and the V-shaped support strip 4 allows the sealing strip to fit tightly against the sealing surface and fill gaps when it is squeezed through the elastic deformation of the cavity and the structural reaction force of the support strip, which greatly improves the sealing effect and effectively prevents the penetration of media such as water, dust and gas.

[0024] In addition, the hollow cylinder not only enhances the connection strength between the V-shaped support strip 4 and the main body of the sealing strip, but also reduces the overall weight of the sealing strip and reduces material fatigue wear. At the same time, the reasonable structural design reduces local stress concentration caused by external impact, extends the service life of the sealing strip, and reduces the replacement frequency and maintenance costs.

[0025] In this invention, a third hollow cylinder 31 is connected to both ends of the arc-shaped end 21 and the horizontal bottom 22. The placement of the third hollow cylinder 31 at the connection between the arc-shaped end 21 and the horizontal bottom 22 can enhance the structural strength of both ends of the sealing part 2 and prevent cracking or deformation of the ends under stress. At the same time, the third hollow cylinder 31 can also help to disperse pressure, making the sealing part 31 more uniformly stressed and improving the overall durability of the sealing strip.

[0026] In this utility model, the mounting part 1 includes an extension part 41 located below the horizontal bottom 22, and slots 42 are provided on both sides of the extension part 41; this allows the sealing strip to be quickly and securely installed on installation parts such as doors, windows, and equipment. The slots 42 cooperate with the protrusions or blocks of the installation part to achieve tight fixation and prevent the sealing strip from falling off; the extension part 41 increases the contact area between the mounting part 1 and the installation part, improving installation stability and sealing effect.

[0027] Furthermore, an anti-slip layer is provided on the bottom wall of the slot 42; this can effectively increase the friction between the slot 42 and the mounting block, preventing the sealing strip from sliding or falling off due to vibration, external pulling or other factors during use, and further improving installation stability and reliability.

[0028] Furthermore, the anti-slip layer is provided with a number of protrusions 61 at intervals. The protrusions 61 at intervals serve as an anti-slip layer, which can maximize the contact friction between the card slot 42 and the card block without affecting the normal installation of the card slot 42. The height, width and spacing of the protrusions 61 can be adjusted according to actual usage requirements. During production, the protrusions 61 and the bottom wall of the card slot 42 are formed synchronously through injection molding.

[0029] A cavity 71 is provided in the middle of the extension 41, which can reduce the weight of the sealing strip and reduce material costs. At the same time, the cavity 71 can generate a certain elastic deformation during installation, which facilitates the installation and cooperation between the slot 42 and the block, and improves the ease of installation. In addition, the cavity can also play a certain buffering role, reducing the impact of vibration transmitted from the installation part on the sealing strip.

[0030] In this invention, a layer of Teflon coating is sprayed onto the outer wall surface of the sealing part 2. After the sealing strip is produced, the surface of the sealing part 2 is cleaned to remove oil, dust and other impurities. Then, a spraying process is used to evenly spray the Teflon coating onto the outer wall of the sealing part 2. After high-temperature curing, the Teflon coating is firmly adhered to the surface of the sealing part. The spraying thickness can be controlled within a suitable range according to the actual use environment and requirements.

[0031] By utilizing the low coefficient of friction, wear resistance, and corrosion resistance of Teflon material, friction between the sealing part 2 and the sealing surface can be reduced, preventing the sealing surface from wearing due to friction and extending the service life of the sealing strip. At the same time, the Teflon coating can also effectively resist the corrosion of substances such as acids, alkalis, and oils, improving the environmental adaptability and sealing performance of the sealing strip.

[0032] Based on the accompanying drawings and the foregoing display and description of 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 illustrative of the 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength sealing strip, comprising an mounting portion (1) and a sealing portion (2), characterized in that: The sealing part (2) has a semi-circular cross-section and a semi-circular cavity (3) inside. A V-shaped support strip (4) is provided in the semi-circular cavity (3). A first hollow cylinder (5) is provided at the lower end intersection of the V-shaped support strip (4). A second hollow cylinder (6) is provided on both sides of the upper end of the V-shaped support strip (4). The first hollow cylinder (5) is fixedly connected to the bottom wall of the semi-circular cavity (3). Both second hollow cylinders (6) are fixedly connected to the arc-shaped wall of the semi-circular cavity (3).

2. The high-strength sealing strip according to claim 1, characterized in that: The sealing part (2) includes an arc-shaped end (21) and a horizontal bottom (22) connected to the lower end of the arc-shaped end (21). The arc-shaped end (21) and the horizontal bottom (22) are connected to form the semi-circular cavity (3). The first hollow cylinder (5) is connected to the horizontal bottom (22), and the second hollow cylinder (6) is connected to the arc-shaped end (21).

3. The high-strength sealing strip according to claim 2, characterized in that: The arc-shaped end (21) and the two ends of the horizontal bottom (22) are each connected to a third hollow cylinder (31).

4. The high-strength sealing strip according to claim 2, characterized in that: The mounting part (1) includes an extension (41) located on the lower side of the horizontal bottom (22), and slots (42) are provided on both sides of the extension (41).

5. A high-strength sealing strip according to claim 4, characterized in that: An anti-slip layer is provided on the bottom wall of the card slot (42).

6. The high-strength sealing strip according to claim 5, characterized in that: The anti-slip layer is provided with a number of raised strips (61) at intervals.

7. The high-strength sealing strip according to claim 5, characterized in that: A cavity (71) is provided in the middle of the extension (41).

8. A high-strength sealing strip according to any one of claims 1-7, characterized in that: The outer wall surface of the sealing part (2) is coated with a layer of Teflon.

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