A furnace door gasket

Abstract

The utility model relates to a kind of furnace door gasket, including glass fiber cloth pipe, foamed sponge is filled in the glass fiber cloth pipe;Foamed sponge is foamed into shape in the glass fiber cloth pipe once, and fill the inner cavity of the glass fiber cloth pipe;The surface of the glass fiber cloth pipe has a layer of skin integrated with foamed sponge, and the skin is distributed with puncture hole, to realize ventilation.The glass fiber cloth pipe is equipped with multiple hooks at intervals;The hook includes the head of diamond and the back-shaped seat of back-shaped needle shape connected in the bottom end of the head, the back-shaped seat is fixed on connecting plate, and the bottom of the connecting plate is equipped with barb nail;Radially inserted into the glass fiber cloth pipe and in the foamed sponge of barb nail corresponding to each hook.

Description

Technical Field

[0001] This utility model relates to a furnace door gasket. Background Technology

[0002] The semi-airtight seal between the oven cavity opening (also called the oven mouth) and the oven door (i.e., an oven door gasket with a certain degree of ventilation) is a consumable accessory. The oven door gasket consists of an elastic mesh of stainless steel wire and a fiberglass cloth tube sleeved on the mesh. The oven door gasket is placed at the junction of the oven body and the oven door by multiple hooks. The mesh is elastic to ensure that the cross-section of the fiberglass cloth tube is approximately circular.

[0003] The shortcomings of the above-mentioned prior art are that the fiberglass cloth tube is made of fiberglass braiding, and fiberglass debris is easily generated during the installation and use of the furnace door gasket. Fiberglass debris poses a certain safety hazard to the human body. How to avoid the generation of fiberglass debris during the installation and use of the furnace door gasket is a technical problem to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a furnace door gasket with a simple structure that can prevent the generation of fiberglass debris during product installation and use.

[0005] To solve the above-mentioned technical problems, this utility model provides a furnace door liner, comprising a fiberglass cloth tube; a foamed sponge is filled inside the fiberglass cloth tube; the foamed sponge is foamed and molded in one step inside the fiberglass cloth tube, filling the inner cavity of the fiberglass cloth tube; the surface of the fiberglass cloth tube has a skin integrally formed with the foamed sponge, and the skin has puncture holes distributed on it to achieve air permeability. Multiple hooks are arranged alternately on the fiberglass cloth tube; each hook includes a rhomboid head and a paperclip-shaped base connected to the bottom end of the head, the paperclip base being fixed to a connecting plate, the bottom of which is provided with barbs; the barbs corresponding to each hook are radially inserted into the fiberglass cloth tube and located within the foamed sponge.

[0006] A preferred embodiment is that the puncture holes are evenly distributed along the circumference of the fiberglass cloth tube and penetrate the fiberglass cloth tube radially to facilitate air permeability of the furnace door gasket.

[0007] The foamed sponge is foamed and molded in one step inside the fiberglass cloth tube, filling the inner cavity of the tube to elastically support it and make the cross-section of the tube circular, thus eliminating the need for the stainless steel wire mesh required in existing technologies. The foaming ratio of the foamed sponge is selected according to the requirements of the furnace door gasket, such as its semi-airtightness and elasticity.

[0008] A further preferred embodiment is that the bottom of the connecting plate having at least one hook is provided with a pair of barbs distributed alternately, the pair of barbs being radially inserted into the first and last ends of the fiberglass tube, so that the end faces of the first and last ends of the fiberglass tube are adjacent to each other and fixed.

[0009] The length of the barbs is not greater than the radius of the fiberglass tube.

[0010] During installation, the heads of each hook on the fiberglass tube (1) are inserted one by one into the corresponding mounting holes on the edge of the oven opening, so that the oven door liner can be fixed on the oven opening.

[0011] The length of the fiberglass tube is prefabricated and matches the edge length of the oven opening.

[0012] This utility model has positive effects: (1) The new structure of the furnace door gasket of this utility model utilizes the foaming material of the foamed sponge. During the foaming process, the foaming material overflows from the surface of the fiberglass cloth tube and forms a skin. Then, the skin of the foamed sponge completely covers the fiberglass cloth tube, so as to avoid the generation of fiberglass debris during the use and installation of the product. At the same time, the elastic foamed sponge is used to fill the fiberglass cloth tube to elastically support the fiberglass cloth tube, so that the cross-section of the fiberglass cloth tube is circular, and replaces the stainless steel elastic pipe network set in the fiberglass cloth tube in the prior art, so that the material cost of the product is comparable to that of the prior art. The size and distribution density of the puncture holes are obtained through experiments according to the requirements of the furnace door gasket for semi-airtightness. At the same time, the fiberglass cloth tube has good flexibility, certain tensile strength, and corrosion resistance. (2) Multiple hooks are provided alternately on the fiberglass cloth tube. When the furnace door gasket is installed, the head of each hook is inserted into the corresponding installation hole on the edge of the oven opening, and the installation is completed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the furnace door gasket of Embodiment 1 of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0015] Figure 3 This is a structural diagram of hook 4, connecting plate 3, and barbed nail 5;

[0016] Figure 4 A schematic diagram of the mating structure of hook 4, barb 3 and fiberglass tube 1;

[0017] Figure 5 A schematic diagram of the structure of a hook 4 having a pair of barbs 5;

[0018] Figure 6A schematic diagram of the structure in which the first and last ends of the fiberglass tube 1 are connected by a pair of barbs 5 on the hook 4. Detailed Implementation

[0019] Example

[0020] See Figure 1-6 The furnace door liner of this embodiment includes: a fiberglass cloth tube 1; a foamed sponge 2 filled inside the fiberglass cloth tube 1; the foamed sponge 2 is foamed and molded in one piece inside the fiberglass cloth tube 1, filling the inner cavity of the fiberglass cloth tube 1; the surface of the fiberglass cloth tube 1 has a skin 2-1 integrally formed with the foamed sponge 2, and the skin has puncture holes distributed on it to achieve air permeability. The puncture holes are evenly distributed along the circumference of the fiberglass cloth tube 1 and penetrate the fiberglass cloth tube 1 radially.

[0021] The size and distribution density of the puncture holes were obtained through experiments based on the requirements of the furnace door lining for semi-air tightness.

[0022] The foamed sponge is foamed and formed in one go inside the fiberglass cloth tube and fills the inner cavity of the fiberglass cloth tube to elastically support the fiberglass cloth tube, so that the cross-section of the fiberglass cloth tube is circular, thereby eliminating the need for the stainless steel wire pipe network required by the prior art.

[0023] The expansion ratio of the foamed sponge during foaming is selected based on the requirements for semi-airtightness and elasticity of the furnace door gasket.

[0024] During the foaming process, the foaming material overflows from the surface of the fiberglass tube and forms a skin. The skin of the foam then completely covers the fiberglass tube to prevent the generation of fiberglass debris during product use and installation.

[0025] The preferred foaming materials for foamed sponges are polyurethane, polyethylene, polyvinyl chloride, or polypropylene. During the foaming process, the sponge surface is in direct contact with the mold or the external environment, and heat is rapidly dissipated, resulting in a surface temperature lower than the interior temperature. This temperature difference allows the surface reaction to reach the curing conditions more quickly, forming a dense skin.

[0026] The fiberglass tube 1 is provided with a plurality of metal hooks 4 in alternating positions; each hook 4 includes a rhomboid head 4-2 and a paperclip-shaped seat 4-1 connected to the bottom end of the head 4-2. The paperclip-shaped seat 4-1 is fixed to the connecting plate 3, and the bottom of the connecting plate 3 is provided with barbs 5; the barbs 5 corresponding to each hook are radially inserted into the fiberglass tube 1 and are located in the foamed sponge 2.

[0027] At least one hook 4 has a pair of barbs 5 arranged alternately at the bottom of the connecting plate 3. The pair of barbs 5 are radially inserted into the first end 1-1 and the last end 1-2 of the fiberglass tube 1, so that the end faces of the first end and the last end of the fiberglass tube 1 are adjacent to each other and fixed.

[0028] During installation, the heads of each hook on the fiberglass tube 1 are inserted one by one into the corresponding mounting holes on the edge of the oven opening to fix the oven door gasket to the oven opening.

[0029] The length of the barb 5 is not greater than the radius of the fiberglass tube 1, so that the fiberglass tube 1 has a large radial compression space.

[0030] Obviously, the above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A furnace door liner, comprising a fiberglass cloth tube (1); characterized in that: The fiberglass tube (1) is filled with foamed sponge (2); The foamed sponge (2) is foamed and formed in one go inside the fiberglass tube (1) and fills the inner cavity of the fiberglass tube (1); The surface of the fiberglass tube (1) has a skin (2-1) integrally formed with the foamed sponge (2), and the skin has puncture holes distributed on it; The fiberglass tube (1) is provided with multiple hooks (4) in alternating positions. The hook (4) includes a rhomboid head (4-2) and a paperclip-shaped seat (4-1) connected to the bottom of the head (4-2). The paperclip (4-1) is fixed to the connecting plate (3), and the bottom of the connecting plate (3) is provided with barbs (5). The barbs (5) corresponding to each hook are inserted radially into the fiberglass tube (1) and placed in the foamed sponge (2).

2. The furnace door gasket according to claim 1, characterized in that: The puncture holes are evenly distributed along the circumference of the fiberglass tube (1) and penetrate the fiberglass tube (1) radially.

3. The furnace door gasket according to claim 1, characterized in that: The bottom of the connecting plate (3) with at least one hook (4) is provided with a pair of barbs (5) arranged alternately. The pair of barbs (5) are inserted radially into the first end (1-1) and the last end (1-2) of the fiberglass tube (1) respectively, so that the end faces of the first end and the last end of the fiberglass tube (1) are adjacent to each other and fixed.

4. The furnace door gasket according to any one of claims 1-3, characterized in that: The length of the barbed nail (5) is not greater than the radius of the fiberglass tube (1).

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