Heat-resistant metal sealing strip

Abstract

The utility model relates to the technical field of sealing strips, and discloses a heat-resistant metal sealing strip which comprises a sealing part and a connecting part, a metal framework is fixedly installed in the connecting part, and sealing lips are fixedly installed on the two sides of the interior of the connecting part. An air bag is embedded in the connecting part; one end of the sealing part is fixedly provided with an air injection port communicated with the air bag. According to the sealing strip pressing device, appropriate pressure is generated through the air bag, after the sealing strip is placed in place, the sealing strip can be evenly pressed into a gap, large-force operation is not needed, operation is easy and convenient, the sealing effect is good, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing strips, in particular to a heat-resistant metal sealing strip. Background Art

[0002] In current industrial and daily applications, the installation of sealing strips is a common and important link. Sealing strips are widely used in multiple fields such as doors and windows, containers, automobiles, etc. to improve the sealing performance and prevent gas or liquid leakage.

[0003] Currently, the installation of most sealing strips relies on the elastic properties of their materials. By means of extrusion deformation, they are embedded into the gaps of door and window frames or other parts to be sealed, thus completing the installation.

[0004] This process often requires users to apply a relatively large force. Whether it is installation or subsequent disassembly, it involves operations such as pressing or pulling forcefully. This installation method not only increases the complexity of the operation and physical consumption, but also has certain risks: if the force is not controlled properly or the installation skills are poor, it is easy to cause the sealing strip to fail to fully fill the gap or be distorted, thereby affecting its sealing efficiency, resulting in the penetration of air, moisture or noise, and ultimately weakening the overall sealing performance. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, and a heat-resistant metal sealing strip is proposed. By generating an appropriate pressure through an airbag, after the sealing strip is placed in place, the sealing strip can be evenly pressed into the gap without strenuous operation, the operation is simple and convenient, and the sealing effect is good, which is convenient for use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A heat-resistant metal sealing strip includes a sealing part and a connecting part. A metal skeleton is fixedly installed inside the connecting part, and sealing lips are fixedly installed on both sides inside the connecting part;

[0008] An airbag is inlaid and installed inside the connecting part;

[0009] One end of the sealing part is fixedly installed with an air injection port communicated with the airbag.

[0010] The airbag extends into the inside of the sealing lip and can drive the sealing lip to contract and expand.

[0011] Preferably, wear-resistant layers are coated on both the inner and outer sides of the connecting part.

[0012] Preferably, an armored net is inlaid and installed inside the sealing part.

[0013] Preferably, the armored net is made of shape memory alloy.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) By providing a connecting part, a metal skeleton, a sealing lip, an air injection port and an airbag, the utility model can generate appropriate pressure through the airbag. After the sealing strip is placed in place, the airbag can be inflated, and the inflation of the airbag makes the sealing lip expand synchronously, so that the sealing lip can be closely attached to the groove pre-opened in the equipment, ensuring the installation and sealing effects. It does not require strenuous operation, is simple and convenient to operate, has a good sealing effect, and is easy to use.

[0016] (2) By providing a sealing part and an armored net, the armored net made of shape memory alloy enables the sealing strip to resist greater external force impacts and squeezes, preventing damage during installation or use, especially suitable for application scenarios that require frequent opening and closing or have high physical stress. The shape memory effect of the shape memory alloy can also be utilized, so that even if the sealing strip is deformed under pressure, it can automatically return to the original designed shape when the temperature condition recovers, maintaining a long-term sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a heat-resistant metal sealing strip proposed by the utility model;

[0018] Figure 2 End cross-sectional view of a heat-resistant metal sealing strip proposed by the utility model;

[0019] Figure 3 Schematic sectional view of a heat-resistant metal sealing strip proposed by the utility model.

[0020] In the figure: 1. Sealing part; 2. Connecting part; 3. Metal skeleton; 4. Sealing lip; 5. Armored net; 6. Air injection port; 7. Wear-resistant layer; 8. Airbag. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1 to 3 , a heat-resistant metal sealing strip, including a sealing part 1 and a connecting part 2. Both the sealing part 1 and the connecting part 2 are made of elastic materials, so that the sealing effect can be achieved through the deformation of the material itself. The connecting part 2 is used to connect the equipment with the gap on the equipment to be installed, so as to facilitate the installation activity.

[0023] A metal framework 3 is fixedly installed inside the connecting part 2. The metal framework 3 can increase the rigidity of the sealing strip, so that the sealing strip can be fixed in place, ensuring the installation effect.

[0024] Sealing lips 4 are fixedly installed on both inner sides of the connecting part 2. The sealing lips 4 will cooperate with the pre-opened grooves in the equipment to complete the installation of the sealing strip and ensure the sealing effect.

[0025] An airbag 8 is inlaid and installed inside the connecting part 2.

[0026] One end of the sealing part 1 is fixedly installed with an air injection port 6 communicating with the airbag 8. Preferably, the air injection port 6 should be provided with corresponding blocking mechanisms, such as valve cores, blocking covers, etc., to avoid gas leakage, ensure the stability of the air pressure inside the airbag 8, and thus ensure the sealing effect.

[0027] The airbag 8 extends into the inside of the sealing lip 4 and can drive the sealing lip 4 to contract and expand.

[0028] When not installed, the airbag 8 is in a contracted state. At this time, the connecting part 2 can be smoothly inserted through the exposed groove quickly. Then, by injecting gas into the airbag 8, the airbag 8 expands. The expansion of the airbag 8 causes the sealing lip 4 to expand synchronously, so that the sealing lip 4 can closely fit with the pre-opened groove in the equipment, ensuring the installation and sealing effects.

[0029] Wear-resistant layers 7 are coated on both the inner and outer sides of the connecting part 2. The wear-resistant layers 7 can make the service life longer, and have a higher roughness, which can enhance the friction force and ensure the installation effect.

[0030] An armored net 5 is inlaid and installed inside the sealing part 1.

[0031] The armored net 5 is made of shape memory alloy.

[0032] The armored net 5 made of shape memory alloy has characteristics such as high strength and toughness, which can enable the sealing strip to resist greater external force impacts and squeezes, preventing damage during installation or use, especially suitable for application scenarios that require frequent opening and closing or have high physical stress.

[0033] Moreover, the armored net 5 made of shape memory alloy can utilize the shape memory effect of the shape memory alloy. Even if the sealing strip is deformed under pressure, it can automatically return to the original designed shape when the temperature condition recovers, maintaining a long-term sealing effect. For example, the shape memory alloy armored net 5 for the thermal expansion and contraction of doors and windows with temperature changes can adapt to the changes in joints or gaps, reduce the degradation of the sealing performance caused by long-term use, and extend the service life of the sealing strip.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-resistant metal sealing strip, comprising a sealing portion (1) and a connecting portion (2), wherein a metal skeleton (3) is fixedly installed inside the connecting portion (2), and is characterized in that, Sealing lips (4) are fixedly installed on both inner sides of the connecting part (2); An airbag (8) is embedded and installed inside the connecting part (2); One end of the sealing part (1) is fixedly installed with an air injection port (6) communicating with the airbag (8).

2. The heat-resistant metal sealing strip according to claim 1, wherein The airbag (8) extends into the inside of the sealing lip (4), and can drive the sealing lip (4) to contract and expand.

3. A heat-resistant metal sealing strip according to claim 1 or 2, characterized in that, Wear-resistant layers (7) are coated on both the inner and outer sides of the connecting part (2).

4. A heat-resistant metal sealing strip according to claim 1 or 2, characterized in that, An armored net (5) is embedded and installed inside the sealing part (1).

5. The heat-resistant metal sealing strip according to claim 3, characterized in that, An armored net (5) is embedded and installed inside the sealing part (1).

6. A heat-resistant metal sealing strip according to claim 4, characterized in that, The armored net (5) is made of shape memory alloy.

7. A heat-resistant metal sealing strip according to claim 5, characterized in that The armored net (5) is made of shape memory alloy.

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