Weather-proof metal-coated hose for gas appliance connection

Abstract

The utility model discloses a weather-proof metal clad hose for gas appliance connection, which comprises a rubber outer pipe, the inner wall of the rubber outer pipe is fixedly connected with a weather-proof layer, the inner wall of the weather-proof layer is fixedly connected with a metal clad layer, the inner wall of the metal clad layer is fixedly connected with a rubber inner pipe, and the inner wall of the rubber inner pipe is fixedly connected with a metal clad layer. The weather-proof layer comprises a polyurethane layer fixedly connected to the inner wall of the rubber outer pipe, a fluororubber layer is fixedly connected to the inner wall of the polyurethane layer, and a polyethylene heat preservation layer is fixedly connected to the inner wall of the fluororubber layer. According to the utility model, the rubber outer pipe, the polyurethane layer and the fluororubber layer are firstly utilized to block rainwater, at the moment, the rainwater can be prevented from permeating into the metal coated hose, and then the polyurethane layer, the fluororubber layer, the polyethylene heat preservation layer and the rubber and plastic sponge layer are utilized to block external air temperature; at the moment, the metal-coated hose can be prevented from being influenced by external air temperature, so that the effect of good weather resistance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas appliance technology, specifically to a weather-resistant metal-coated flexible hose for connecting gas appliances. Background Technology

[0002] Gas metal-coated hoses are specialized hoses used for connecting gas appliances. They are mostly made of stainless steel and other metal materials, and have explosion-proof, fire-proof, and corrosion-resistant properties. They can effectively prevent safety hazards such as gas leaks. Gas metal-coated hoses are widely used in various gas equipment in homes and businesses, such as gas stoves and gas water heaters, to ensure the safety and stability of gas transmission.

[0003] According to patent number CN218510390U published on the China Patent Network, the patent title is "A Metal-Clad Gas Hose," which includes a hose body. The hose body comprises a coating layer, a braided sleeve, and an inner sleeve, sequentially sleeved from the outside in. An outer retaining ring is fitted on the outer side of the coating layer, and an inner retaining ring is provided inside the inner sleeve. The outer retaining ring and the inner retaining ring clamp the hose body. A clamp is also fitted on the outer side of the coating layer, located between the free end of the hose body and the outer retaining ring. The clamp is used to clamp the hose body with the hose connector. The purpose of this utility model is to overcome the shortcomings of the prior art and provide a metal-clad gas hose that can relatively fix the multi-layer structure of the hose to prevent relative slippage between the inner tube and the outer braided sleeve, thereby ensuring the sealing of the hose and the hose connector. However, this metal-clad hose has poor weather resistance. The current metal-clad hose has a simple structure and is very susceptible to the effects of climate change during use, which can cause damage to the metal-clad hose and lead to gas leakage.

[0004] Therefore, the design of metal-coated flexible hoses needs to be modified to improve their weather resistance. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a weather-resistant metal-coated flexible gas appliance connection, which has the advantage of good weather resistance. This solves the problems of poor weather resistance of current metal-coated flexible gas appliances, simple structure, and susceptibility to climate change during use, which can lead to damage and gas leakage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a weather-resistant metal-coated flexible hose for connecting gas appliances, comprising a rubber outer tube, a weather-resistant layer fixedly connected to the inner wall of the rubber outer tube, a metal-coated layer fixedly connected to the inner wall of the weather-resistant layer, and a rubber inner tube fixedly connected to the inner wall of the metal-coated layer.

[0007] The weather-resistant layer includes a polyurethane layer fixedly connected to the inner wall of the rubber outer tube, a fluororubber layer fixedly connected to the inner wall of the polyurethane layer, a polyethylene insulation layer fixedly connected to the inner wall of the fluororubber layer, a rubber-plastic sponge layer fixedly connected to the inner wall of the polyethylene insulation layer, and the inner wall of the rubber-plastic sponge layer fixedly connected to the surface of the metal cladding layer.

[0008] As a preferred embodiment of this invention, the polyurethane layer is made of polyurethane thermoplastic elastomer, and the thickness of the polyurethane layer is 0.5 cm.

[0009] As a preferred embodiment of this invention, the fluororubber layer is made of fluoroether rubber, and the thickness of the fluororubber layer is the same as the thickness of the polyurethane layer.

[0010] As a preferred embodiment of this invention, the polyethylene insulation layer is made of polystyrene, and the cross-sectional shape of the polyethylene insulation layer is annular.

[0011] As a preferred embodiment of this invention, the type of rubber-plastic sponge layer is closed-cell rubber-plastic sponge, and the rubber-plastic sponge layer is fixedly connected to the metal coating layer by adhesive.

[0012] As a preferred embodiment of this invention, the inner wall of the rubber inner tube is fixedly connected with an anti-corrosion layer, the material of which is a plastic film.

[0013] As a preferred embodiment of this invention, the metal cladding layer is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model first uses a rubber outer tube, a polyurethane layer, and a fluororubber layer to block rainwater, thus preventing rainwater from penetrating into the metal-coated hose. Then, it uses a polyurethane layer, a fluororubber layer, a polyethylene insulation layer, and a rubber-plastic sponge layer to block external temperature, thus preventing the metal-coated hose from being affected by external temperature, thereby achieving good weather resistance.

[0016] 2. By setting a polyurethane layer of thermoplastic elastomer material, this utility model can increase the anti-aging performance of the polyurethane layer, making the polyurethane layer less prone to aging and damage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the rubber outer tube structure of this utility model;

[0018] Figure 2 This is a front sectional view of the metal cladding structure of this utility model;

[0019] Figure 3This is a front sectional view of the weather-resistant layer structure of this utility model;

[0020] Figure 4 This is a partial sectional view of the rubber inner tube structure of this utility model.

[0021] In the diagram: 1. Rubber outer tube; 2. Weather-resistant layer; 3. Metal cladding layer; 4. Rubber inner tube; 21. Polyurethane layer; 22. Fluororubber layer; 23. Polyethylene insulation layer; 24. Rubber-plastic sponge layer; 5. Anti-corrosion layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, the present invention provides a weather-resistant metal-coated flexible hose for connecting gas appliances, including a rubber outer tube 1, a weather-resistant layer 2 fixedly connected to the inner wall of the rubber outer tube 1, a metal-coated layer 3 fixedly connected to the inner wall of the weather-resistant layer 2, and a rubber inner tube 4 fixedly connected to the inner wall of the metal-coated layer 3.

[0024] The weather-resistant layer 2 includes a polyurethane layer 21 fixedly connected to the inner wall of the rubber outer tube 1, a fluororubber layer 22 fixedly connected to the inner wall of the polyurethane layer 21, a polyethylene insulation layer 23 fixedly connected to the inner wall of the fluororubber layer 22, a rubber-plastic sponge layer 24 fixedly connected to the inner wall of the polyethylene insulation layer 23, and the inner wall of the rubber-plastic sponge layer 24 fixedly connected to the surface of the metal cladding layer 3.

[0025] refer to Figure 3 The polyurethane layer 21 is made of polyurethane thermoplastic elastomer, and the thickness of the polyurethane layer 21 is 0.5 cm.

[0026] As a technical optimization of this utility model, by setting a polyurethane layer 21 of polyurethane thermoplastic elastomer material, the anti-aging performance of the polyurethane layer 21 can be increased, making the polyurethane layer 21 less prone to aging and damage.

[0027] refer to Figure 3 The fluororubber layer 22 is made of fluoroether rubber, and the thickness of the fluororubber layer 22 is the same as the thickness of the polyurethane layer 21.

[0028] As a technical optimization of this utility model, by setting a fluororubber layer 22 of fluoroether rubber material, liquid can be blocked, preventing external liquid from penetrating into the metal coating layer 3.

[0029] refer to Figure 3 The polyethylene insulation layer 23 is made of polystyrene, and the cross-sectional shape of the polyethylene insulation layer 23 is circular.

[0030] As a technical optimization of this utility model, by setting a polyethylene insulation layer 23 made of polystyrene, the insulation performance of the polyethylene insulation layer 23 can be increased, and the internal temperature can be prevented from escaping to the outside.

[0031] refer to Figure 3 The rubber and plastic sponge layer 24 is a closed-cell rubber and plastic sponge, and the rubber and plastic sponge layer 24 is fixedly connected to the metal covering layer 3 by adhesive.

[0032] As a technical optimization of this utility model, by setting a closed-cell rubber-plastic sponge layer 24, the thermal insulation performance of the rubber inner tube 4 can be increased, and the rubber inner tube 4 can be prevented from being damaged due to temperature changes.

[0033] refer to Figure 4 The inner wall of the rubber inner tube 4 is fixedly connected with an anti-corrosion layer 5, which is made of plastic film.

[0034] As a technical optimization of this utility model, by setting the anti-corrosion layer 5, the anti-corrosion performance of the rubber inner tube 4 can be increased, and the rubber can be prevented from being corroded and damaged.

[0035] refer to Figure 2 The metal cladding layer 3 is made of stainless steel.

[0036] As a technical optimization of this utility model, by setting a stainless steel metal cladding layer 3, it is possible to prevent the metal cladding layer 3 from rusting and to prevent the metal cladding layer 3 from being damaged due to rusting.

[0037] The working principle and usage process of this utility model are as follows: When using a metal-coated flexible hose to transport gas in rainy weather, the outer rubber tube 1 first blocks rainwater, preventing it from contacting the polyurethane layer 21. When the outer rubber tube 1 is damaged, the polyurethane layer 21 blocks rainwater, preventing it from contacting the fluororubber layer 22. When the polyurethane layer 21 is damaged, the fluororubber layer 22 blocks rainwater. This prevents rainwater from penetrating into the metal-coated flexible hose. When using the metal-coated flexible hose to transport gas in cold or hot environments, the polyurethane layer 21 first blocks the external... The fluororubber layer 22 is insulated from the external temperature to prevent it from being affected by the external temperature. When the polyurethane layer 21 is damaged, the fluororubber layer 22 is used to insulate against the external temperature, preventing the polyethylene insulation layer 23 from being affected by the external temperature. When the fluororubber layer 22 is damaged, the polyethylene insulation layer 23 is used to insulate against the external temperature, preventing the rubber and plastic sponge layer 24 from being affected by the external temperature. When the polyethylene insulation layer 23 is damaged, the rubber and plastic sponge layer 24 is used to insulate against the external temperature. At this time, the metal-coated hose can be prevented from being affected by the external temperature, thereby achieving a good weather resistance effect.

[0038] In summary, this weather-resistant metal-coated flexible gas appliance connection solves the problems of poor weather resistance of metal-coated flexible hoses. It is achieved by incorporating a rubber outer tube 1, a weather-resistant layer 2, a metal coating layer 3, a rubber inner tube 4, a polyurethane layer 21, a fluororubber layer 22, a polyethylene insulation layer 23, a rubber-plastic sponge layer 24, and an anti-corrosion layer 4. Current metal-coated flexible hoses have simple structures and are easily affected by climate changes, leading to damage and gas leaks.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weather-resistant metal-coated flexible hose for connecting gas appliances, comprising a rubber outer tube (1), characterized in that: The inner wall of the rubber outer tube (1) is fixedly connected to a weather-resistant layer (2), the inner wall of the weather-resistant layer (2) is fixedly connected to a metal cladding layer (3), and the inner wall of the metal cladding layer (3) is fixedly connected to a rubber inner tube (4). The weather-resistant layer (2) includes a polyurethane layer (21) fixedly connected to the inner wall of the rubber outer tube (1), a fluororubber layer (22) fixedly connected to the inner wall of the polyurethane layer (21), a polyethylene insulation layer (23) fixedly connected to the inner wall of the fluororubber layer (22), a rubber-plastic sponge layer (24) fixedly connected to the inner wall of the polyethylene insulation layer (23), and the inner wall of the rubber-plastic sponge layer (24) fixedly connected to the surface of the metal cladding layer (3).

2. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The polyurethane layer (21) is made of polyurethane thermoplastic elastomer, and the thickness of the polyurethane layer (21) is 0.5 cm.

3. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The fluororubber layer (22) is made of fluoroether rubber, and the thickness of the fluororubber layer (22) is the same as the thickness of the polyurethane layer (21).

4. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The polyethylene insulation layer (23) is made of polystyrene, and the cross-sectional shape of the polyethylene insulation layer (23) is circular.

5. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The rubber and plastic sponge layer (24) is a closed-cell rubber and plastic sponge, and the rubber and plastic sponge layer (24) is fixedly connected to the metal covering layer (3) by adhesive.

6. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The inner wall of the rubber inner tube (4) is fixedly connected with an anti-corrosion layer (5), which is made of plastic film.

7. The weather-resistant metal-coated flexible hose for connecting gas appliances according to claim 1, characterized in that: The metal cladding layer (3) is made of stainless steel.

Images