A heat-preservation and corrosion-resistant elbow with dustproof function

Abstract

The utility model discloses a heat -preserving anticorrosive elbow with dustproof function belongs to hardware fitting technical field, a heat -preserving anticorrosive elbow with dustproof function, including the elbow body and setting first interface and second interface at the both ends of elbow body, the elbow body is composed of outer lining and inner lining, be provided with vacuum cavity between outer lining with the inner lining, the inside of vacuum cavity is filled with heat -insulating cotton, the outer facade of outer lining is coated with external anticorrosive paint layer, the inner facade of inner lining is coated with internal anticorrosive paint layer, the inside of first interface with second interface all is provided with the first embedded joint groove of ring and set on the inner lining, it has improved the heat -preserving effect of elbow body, and through the outer facade of outer lining is coated with external anticorrosive paint layer, the inner facade of inner lining is coated with internal anticorrosive paint layer, the inner wall and the outer wall of elbow body have played good anticorrosive effect, have prolonged the service life of elbow body.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, and more specifically, to a heat-insulating and corrosion-resistant elbow with dustproof function. Background Technology

[0002] In piping systems, elbows are fittings used to change the direction of pipelines. Based on angle, the three most common types are 45°, 90°, and 180°. Additionally, depending on project requirements, other non-standard angle elbows such as 60° are also available. Elbows are made from materials including cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics.

[0003] Patent authorization announcement number CN214579598U discloses a heat-insulating and corrosion-resistant elbow with dustproof function, including an elbow body and a dust cover. A first connection port is provided on one side of the elbow body, and a second connection port is provided on the other side. A pipe wall is provided between the second connection port and the first connection port. An external anti-corrosion coating layer is fixedly provided on the outermost side of the pipe wall. An insulation layer is fixedly provided on one side of the external anti-corrosion coating layer, a metal layer is fixedly provided on one side of the insulation layer, and an internal anti-corrosion coating layer is fixedly provided on one side of the metal layer. A first thread is fixedly provided on one side of the surface of the internal anti-corrosion coating layer, and a second thread is fixedly provided on one side of the surface of the internal anti-corrosion coating layer. By providing external and internal anti-corrosion coating layers on both the inner and outer sides of the pipe wall, corrosion protection is provided to the pipe wall, preventing corrosion of the elbow body and extending the service life of the elbow body.

[0004] However, the patent authorization announcement number CN214579598U describes a method of heat preservation and protection for the metal layer by setting up an insulation layer to prevent pipe wall rupture and damage caused by large changes in external ambient temperature. Since the metal layer is insulated by the insulation layer, and an external anti-corrosion coating is applied to the insulation layer, the heat preservation and anti-corrosion effect of the elbow is not ideal. In order to improve the anti-corrosion and heat preservation effect of the elbow, we propose a heat preservation and anti-corrosion elbow with dustproof function to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a heat-insulating and corrosion-resistant elbow with dustproof function. It utilizes the vacuum environment, where there are very few air molecules, and heat cannot be transferred through air conduction or convection, thus improving the heat insulation effect of the elbow body. By filling the inner side of the vacuum cavity with heat-insulating cotton, the heat insulation effect of the elbow body is further improved. Furthermore, the outer surface of the outer lining layer is coated with an external anti-corrosion coating layer, and the inner surface of the inner lining layer is coated with an internal anti-corrosion coating layer, which provides excellent corrosion protection for the inner and outer walls of the elbow body and extends the service life of the elbow body.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A heat-insulating and corrosion-resistant elbow with dustproof function includes an elbow body and a first interface and a second interface disposed at both ends of the elbow body. The elbow body is composed of an outer lining layer and an inner lining layer. A vacuum cavity is provided between the outer lining layer and the inner lining layer. The inner side of the vacuum cavity is filled with heat-insulating cotton.

[0010] The outer surface of the outer lining is coated with an external anti-corrosion coating layer;

[0011] The inner surface of the lining layer is coated with an internal anti-corrosion coating layer.

[0012] Both the first interface and the second interface have a first interlocking groove circumferentially disposed on the inner side of the inner lining layer.

[0013] Both the first and second interfaces are detachably connected to plugs. The outer wall of the plug is provided with a second fitting groove corresponding to the first fitting groove ring. The inner side of the second fitting groove is inlaid with a sealing ring that engages with the first fitting groove.

[0014] Furthermore, the end of the plug is integrally formed with an end cap, and the diameter of the end cap is equal to the outer diameter of the elbow body.

[0015] Furthermore, the end cap has a handle integrally formed on its surface, and the handle has a through hole.

[0016] Furthermore, the external anti-corrosion coating layer is an epoxy coal tar coating, and the coating thickness of the external anti-corrosion coating layer is set at 0.8-1mm.

[0017] Furthermore, the internal anti-corrosion coating layer is an epoxy resin coating, and the coating thickness of the internal anti-corrosion coating layer is set at 0.5-0.7 mm.

[0018] Furthermore, the plug is made of stainless steel.

[0019] Furthermore, the outer liner and the inner liner 5 are made of carbon steel, and the thickness of the outer liner and the inner liner is set at 2mm.

[0020] 3. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] (1) In this scheme, the elbow body is composed of an outer lining layer and an inner lining layer. A vacuum cavity is formed by setting a cavity between the outer lining layer and the inner lining layer and evacuating it. Under vacuum conditions, there are very few air molecules, and heat cannot be transferred through air conduction or convection, which improves the heat preservation effect of the elbow body. Furthermore, by filling the inner side of the vacuum cavity with heat insulation cotton, the heat preservation effect of the elbow body is further improved.

[0023] (2) In this solution, the outer surface of the outer lining is coated with an external anti-corrosion coating layer, and the inner surface of the inner lining is coated with an internal anti-corrosion coating layer, which plays a good anti-corrosion role on the inner and outer walls of the elbow body and extends the service life of the elbow body.

[0024] (3) In this solution, when the elbow body is not in use, by placing the plugs inside the first and second interfaces respectively, and embedding the sealing rings embedded in the plugs into the inner side of the first fitting groove, it can not only effectively prevent the plugs from falling off, but also effectively fill the gap between the plugs and the joints of the first and second interfaces, preventing dust from entering the inner side of the elbow body, thus playing a good dustproof role. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a side view of the elbow body of this utility model;

[0027] Figure 3 This is a cross-sectional schematic diagram of part AA of the elbow body of this utility model;

[0028] Figure 4 This is a schematic diagram of the plug structure of this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Elbow body; 2. First interface; 3. Second interface; 4. Outer lining layer; 5. Inner lining layer; 6. External anti-corrosion coating layer; 7. Internal anti-corrosion coating layer; 8. Vacuum chamber; 9. Thermal insulation cotton; 10. First interlocking groove; 11. End cap; 12. Plug; 13. Second interlocking groove; 14. Sealing ring; 15. Handle. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Example:

[0033] Please see Figure 1-4 A heat-insulating and corrosion-resistant elbow with dustproof function includes an elbow body 1 and a first interface 2 and a second interface 3 provided at both ends of the elbow body 1. The elbow body 1 is composed of an outer lining layer 4 and an inner lining layer 5. A vacuum cavity 8 is provided between the outer lining layer 4 and the inner lining layer 5. The inner side of the vacuum cavity 8 is filled with heat-insulating cotton 9.

[0034] The exterior of the outer lining layer 4 is coated with an external anti-corrosion coating layer 6;

[0035] The inner surface of the inner lining layer 5 is coated with an internal anti-corrosion coating layer 7;

[0036] Both the inner sides of the first interface 2 and the second interface 3 are provided with a first interlocking groove 10 that is circumferentially disposed on the inner lining layer 5.

[0037] Both the first interface 2 and the second interface 3 are detachably connected to a plug 12. The outer wall of the plug 12 is provided with a second fitting groove 13 corresponding to the first fitting groove 10. The inner side of the second fitting groove 13 is inlaid with a sealing ring 14 that engages with the first fitting groove 10.

[0038] It should be noted that when this dustproof and corrosion-resistant elbow is in use, the elbow body 1 is composed of an outer lining layer 4 and an inner lining layer 5. A vacuum chamber 8 is formed by setting a cavity between the outer lining layer 4 and the inner lining layer 5 and evacuating it. Under vacuum conditions, there are very few air molecules, and heat cannot be transferred through air conduction or convection, which improves the heat insulation effect of the elbow body 1. Furthermore, the heat insulation effect of the elbow body 1 is further improved by filling the inner side of the vacuum chamber 8 with heat insulation cotton 9.

[0039] The outer surface of the outer lining layer 4 is coated with an external anti-corrosion coating layer 6, and the inner surface of the inner lining layer 5 is coated with an internal anti-corrosion coating layer 7, which plays a good anti-corrosion role on the inner and outer walls of the elbow body 1 and extends the service life of the elbow body 1.

[0040] When the elbow body 1 is not in use, by placing the plug 12 inside the first interface 2 and the second interface 3 respectively, and embedding the sealing ring 14 embedded on the plug 12 into the inside of the first fitting groove 10, it can not only effectively prevent the plug 12 from falling off, but also effectively fill the gap between the plug 12 and the joint of the first interface 2 and the second interface 3, preventing dust from entering the inside of the elbow body 1, thus playing a good dustproof role.

[0041] like Figure 1 As shown, the end cap 11 is integrally formed at the end of the plug 12, and the diameter of the end cap 11 is equal to the outer diameter of the elbow body 1. The handle 15 is integrally formed on the surface of the end cap 11, and a through hole is provided on the handle 15.

[0042] It should be noted that the end cap 11 limits the stop of the plug 12, and the handle 15 facilitates the disassembly of the plug 12 in conjunction with the end cap 11.

[0043] like Figure 3 As shown, the external anti-corrosion coating layer 6 is an epoxy coal tar coating, and the coating thickness of the external anti-corrosion coating layer 6 is set at 0.8-1mm.

[0044] It should be noted that it has high strength, water resistance, and corrosion resistance properties, and is suitable for the exposed part of the elbow body 1.

[0045] like Figure 3 As shown, the internal anti-corrosion coating layer 7 is an epoxy resin coating, and the coating thickness of the internal anti-corrosion coating layer 7 is set at 0.5-0.7mm.

[0046] It should be noted that the hygiene requirements for drinking water pipelines must be met.

[0047] The plug 12 is made of stainless steel.

[0048] The outer liner 4 and the inner liner 5 are made of carbon steel, and the thickness of the outer liner 4 and the inner liner 5 is set at 2mm.

[0049] In use: The elbow body 1 is composed of an outer lining layer 4 and an inner lining layer 5. A cavity is set between the outer lining layer 4 and the inner lining layer 5 and a vacuum is formed by vacuuming. Under vacuum conditions, there are very few air molecules, and heat cannot be transferred through air conduction or convection, which improves the heat preservation effect of the elbow body 1. Furthermore, the heat preservation effect of the elbow body 1 is further improved by filling the inner side of the vacuum cavity 8 with heat preservation cotton 9.

[0050] The outer surface of the outer lining layer 4 is coated with an external anti-corrosion coating layer 6, and the inner surface of the inner lining layer 5 is coated with an internal anti-corrosion coating layer 7, which plays a good anti-corrosion role on the inner and outer walls of the elbow body 1 and extends the service life of the elbow body 1.

[0051] When the elbow body 1 is not in use, by placing the plug 12 inside the first interface 2 and the second interface 3 respectively, and embedding the sealing ring 14 embedded on the plug 12 into the inside of the first fitting groove 10, it can not only effectively prevent the plug 12 from falling off, but also effectively fill the gap between the plug 12 and the joint of the first interface 2 and the second interface 3, preventing dust from entering the inside of the elbow body 1, thus playing a good dustproof role.

[0052] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A heat-insulating and corrosion-resistant elbow with dustproof function, comprising an elbow body (1) and a first interface (2) and a second interface (3) disposed at both ends of the elbow body (1), characterized in that: The elbow body (1) is composed of an outer liner (4) and an inner liner (5). A vacuum cavity (8) is provided between the outer liner (4) and the inner liner (5). The inner side of the vacuum cavity (8) is filled with thermal insulation cotton (9). The outer surface of the outer lining layer (4) is coated with an external anti-corrosion coating layer (6); The inner surface of the lining layer (5) is coated with an internal anti-corrosion coating layer (7); The inner sides of the first interface (2) and the second interface (3) are provided with a first interlocking groove (10) circumferentially disposed on the inner lining layer (5); Both the first interface (2) and the second interface (3) are detachably connected with plugs (12). The outer wall of the plug (12) is provided with a second fitting groove (13) corresponding to the first fitting groove (10). The inner side of the second fitting groove (13) is inlaid with a sealing ring (14) that engages with the first fitting groove (10).

2. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 1, characterized in that: The end cap (11) is integrally formed at the end of the plug (12), and the diameter of the end cap (11) is equal to the outer diameter of the elbow body (1).

3. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 2, characterized in that: The end cap (11) has a handle (15) integrally formed on its surface, and the handle (15) has a through hole.

4. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 1, characterized in that: The external anti-corrosion coating layer (6) is an epoxy coal tar coating, and the coating thickness of the external anti-corrosion coating layer (6) is set at 0.8-1mm.

5. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 1, characterized in that: The internal anti-corrosion coating layer (7) is an epoxy resin coating, and the coating thickness of the internal anti-corrosion coating layer (7) is set at 0.5-0.7 mm.

6. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 1, characterized in that: The plug (12) is made of stainless steel.

7. The heat-insulating and corrosion-resistant elbow with dustproof function according to claim 1, characterized in that: The outer liner (4) and the inner liner (5) are made of carbon steel, and the thickness of both the outer liner (4) and the inner liner (5) is set at 2 mm.

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