Flange with high corrosion resistance

Abstract

The utility model discloses a high anti-corrosion flange which comprises a first flange body, a second flange body and a protective device, the lower end of the first flange body is fixedly connected with a first connecting plate, the outer end of the lower surface of the first connecting plate is fixedly connected with an annular protruding block, and the lower portion of the first flange body is connected with the second flange body. A plurality of first connecting holes are formed in the outer end of the second flange body at equal angles, an anti-corrosion coating is sprayed on the inner side of the second flange body, a second connecting plate is fixedly connected to the upper surface of the second flange body, and an annular connecting groove is formed in the upper surface of the second connecting plate; protective devices are mounted on the outer sides of the first flange body and the second flange body, and sealing rings are fixedly connected to the inner sides of the protective devices. According to the high-corrosion-resistance flange, the high corrosion resistance of the flange is facilitated, the flange can be better sealed, and the first flange body and the second flange body can be aligned.

Description

Technical Field

[0001] The utility model relates to the technical field related to flanges, in particular to a highly corrosion-resistant flange. Background Art

[0002] Flange, also known as flange flange or flange, is a part that connects pipes to each other and is used to connect pipe ends. It is also used as a flange on the inlet and outlet of equipment to connect two devices, such as reducer flange. Flange connection or flange joint refers to a detachable connection in which flange, gasket and screw are connected to each other as a combined sealing structure.

[0003] The Chinese utility model patent with reference authorization announcement number CN214274802U discloses a highly corrosion-resistant sealing flange, which relates to the flange-related technical field, including flange 1, flange 2, screws, nuts and pipes, and a spring column 1 is provided on the top of the flange 1. In the utility model, a spring column 1 is provided on flange 1, and a connecting plate rotatably connected to the adapter block is provided on the top of the spring column 1. The screw passes through flange 1, flange 2 and the connecting plate to be connected with the nut. A limit plate is installed at the bottom of one end of the connecting plate, and a limit groove matching the limit plate is provided on the side of flange 2, so that flange 1 and flange 2 can fit tightly. Two protective frames rotatably connected by rotating pins are provided on the sides of flange 1 and flange 2, and sealing rings are installed on the opposite end faces of the protective frames. A clamping block is provided at one end of the two protective frames, and perforations are provided on the two clamping blocks to protect flange 1 and flange 2. The sealing ring can seal the protective frame to prevent flange 1 and flange 2 from being in contact with air for a long time, thereby protecting flange 1 and flange 2;

[0004] However, there are inconvenient problems in the prior art; for this reason, we propose a highly corrosion-resistant flange to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a highly corrosion-resistant flange to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly anti-corrosion flange, comprising a first flange body, a second flange body and a protective device, the lower end of the first flange body is fixedly connected to a first connecting plate, and the outer end of the lower surface of the first connecting plate is fixedly connected to an annular protrusion block, the lower part of the first flange body is connected to a second flange body, and the outer end of the second flange body is provided with a plurality of first connecting holes at equal angles, the inner side of the second flange body is sprayed with an anti-corrosion coating, and the upper surface of the second flange body is fixedly connected to a second connecting plate, and the upper surface of the second connecting plate is provided with an annular connecting groove;

[0007] A protective device is installed on the outer side of the first flange body and the second flange body, and a sealing ring is fixedly connected to the inner side of the protective device. A fixing plate is fixedly connected to the right end of the protective device, and second connecting holes are opened at the upper and lower ends of the fixing plate.

[0008] Preferably, a plurality of first connection holes are formed at equal intervals on the outer end of the first flange body, and an anti-corrosion coating is sprayed on the inner side of the first flange body.

[0009] Preferably, the protruding block is slidably connected in the annular connecting groove.

[0010] Preferably, the protective device is composed of a rear protective ring, a front protective ring, a fixed ring plate, a threaded hole and a storage groove. The front side of the rear protective ring is rotatably connected to the front protective ring, and the upper and lower ends of the rear protective ring and the front protective ring are fixedly connected to the fixed ring plate, and a threaded hole is opened in the middle of the fixed ring plate, and the inner sides of the middle of the rear protective ring and the front protective ring are opened. Storage grooves are provided.

[0011] Preferably, the first flange body and the second flange body are both placed in the storage groove.

[0012] Preferably, a fixing plate is fixedly connected to the right side of the rear protective ring and the left side of the front protective ring.

[0013] Preferably, a protruding sealing plate is provided on the inner side of the middle part of the sealing ring, and the upper and lower side surfaces of the sealing plate in the middle part of the sealing ring are in contact with the outer end of the lower surface of the first flange body and the outer end of the upper surface of the second flange body.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the highly anti-corrosion flange facilitates the flange to be highly anti-corrosion, facilitates the flange to be more sealed, and facilitates the first flange body and the second flange body to be aligned;

[0015] 1. A layer of anti-corrosion coating is sprayed on the inner side walls of the first flange body and the second flange body, and a protective device is installed on the outer side of the first flange and the second flange. The protective device protects the first flange body and the second flange body in the storage groove, so as to make the flange highly anti-corrosive;

[0016] 2. A sealing ring is fixedly connected to the inner side of the storage groove, and a protruding sealing plate is arranged on the inner side of the middle part of the sealing ring. The protruding sealing plate seals the connection between the first flange body and the second flange body, so as to make the flange more sealed;

[0017] 3. The lower surface of the first flange body is fixedly connected to a first connecting plate, and an annular protruding block is arranged on the lower surface of the first connecting plate. The upper surface of the second flange body is fixedly connected to a second connecting plate, and an annular connecting groove is arranged on the upper surface of the second connecting plate. The protruding block is slidably connected in the annular connecting groove to facilitate the alignment of the first flange body and the second flange body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the protective device of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the first flange body and the second flange body of the utility model;

[0021] Figure 4 It is a front perspective cutaway structural diagram of the sealing ring of the utility model.

[0022] In the figure: 1. first flange body; 2. first connecting plate; 3. protruding block; 4. second flange body; 5. first connecting hole; 6. anti-corrosion coating; 7. second connecting plate; 8. annular connecting groove; 9. protective device; 901. rear protective ring; 902. front protective ring; 903. fixing ring plate; 904. threaded hole; 905. storage groove; 10. sealing ring; 11. fixing plate; 12. second connecting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a highly corrosion-resistant flange, including a first flange body 1, a first connecting plate 2, a protruding block 3, a second flange body 4, a first connecting hole 5, an anti-corrosion coating 6, a second connecting plate 7, an annular connecting groove 8, a protective device 9, a rear protective ring 901, a front protective ring 902, a fixing ring plate 903, a threaded hole 904, a storage groove 905, a sealing ring 10, a fixing plate 11 and a second connecting hole 12.

[0025] A first connecting plate 2 is fixedly connected to the lower surface of the first connecting plate 2, and an annular protruding block 3 is fixedly connected to the lower surface of the first connecting plate 2. A second flange body 4 is connected below the first flange body 1. A plurality of first connecting holes 5 are opened at equal angles at the outer end of the second flange body 4. A plurality of first connecting holes 5 are also opened at equal angles at the outer end of the first flange body 1. The first connecting holes 5 can be used to fix the first flange body 1 and the second flange body 4 together by a connecting piece. A layer of anti-corrosion coating 6 is sprayed on the inner sides of the first flange body 1 and the second flange body 4 to prevent corrosion of the inner sides of the first flange body 1 and the second flange body 4. A second connecting plate 7 is fixedly connected to the upper surface of the second flange body 4, and an annular connecting groove 8 is fixedly connected to the upper surface of the second connecting plate 7. When the first flange body 1 and the second flange body 4 are connected together, the protruding block 3 is slidably connected in the annular connecting groove 8 to facilitate the alignment of the first flange body 1 and the second flange body 4.

[0026] A protective device 9 is installed on the outer side of the first flange body 1 and the second flange body 4. The protective device 9 is composed of a rear protective ring 901, a front protective ring 902, a fixed ring plate 903, a threaded hole 904 and a storage groove 905. The front side of the rear protective ring 901 is rotatably connected to the front protective ring 902. The right side of the rear protective ring 901 and the left side of the front protective ring 902 are fixedly connected by a hinge. The upper and lower ends of the rear protective ring 901 and the front protective ring 902 are fixedly connected to the fixed ring plate 903. The middle part of the fixed ring plate 903 is provided with a threaded hole 904. After the protective device 9 is installed on the first flange body 1 and the second flange body 4, a fixing bolt is passed through the threaded hole 904 to fix the protective device 9 on the outer ends of the first flange body 1 and the second flange body 4. The rear protective ring 901 A storage groove 905 is provided on the inner side of the middle part of the front protective ring 902, and the first flange body 1 and the second flange body 4 are placed in the storage groove 905. The right side of the rear protective ring 901 and the left side of the front protective ring 902 are fixedly connected with a fixing plate 11, and the upper and lower ends of the fixing plate 11 are provided with a second connecting hole 12. After the first flange body 1 and the second flange body 4 are connected, the rear protective ring 901 and the front protective ring 902 are sleeved on the outside of the first flange body 1 and the second flange body 4, the rear protective ring 901 and the front protective ring 902 are closed, and the second connecting hole 12 is passed through the connecting piece to fix the fixing plate 11 together. The above completes a series of operations of the high corrosion-resistant flange. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0027] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly corrosion-resistant flange, comprising a first flange body (1), a second flange body (4) and a protective device (9), characterized in that: The lower end of the first flange body (1) is fixedly connected to a first connecting plate (2), and the outer end of the lower surface of the first connecting plate (2) is fixedly connected to an annular protruding block (3); the lower part of the first flange body (1) is connected to a second flange body (4), and the outer end of the second flange body (4) is provided with a plurality of first connecting holes (5) at equal angles; the inner side of the second flange body (4) is sprayed with an anti-corrosion coating (6), and the upper surface of the second flange body (4) is fixedly connected to a second connecting plate (7), and the upper surface of the second connecting plate (7) is provided with an annular connecting groove (8); A protective device (9) is installed on the outer sides of the first flange body (1) and the second flange body (4), and a sealing ring (10) is fixedly connected to the inner side of the protective device (9). A fixing plate (11) is fixedly connected to the right end of the protective device (9), and a second connecting hole (12) is provided at the upper and lower ends of the fixing plate (11).

2. A highly corrosion-resistant flange according to claim 1, characterized in that: The outer end of the first flange body (1) is provided with a plurality of first connection holes (5) at equal intervals, and the inner side of the first flange body (1) is sprayed with an anti-corrosion coating (6).

3. The highly corrosion-resistant flange according to claim 1, characterized in that: The protruding block (3) is slidably connected in the annular connecting groove (8).

4. The highly corrosion-resistant flange according to claim 1, characterized in that: The protective device (9) is composed of a rear protective ring (901), a front protective ring (902), a fixed ring plate (903), a threaded hole (904) and a storage groove (905); the front side of the rear protective ring (901) is rotatably connected to the front protective ring (902); the upper and lower ends of the rear protective ring (901) and the front protective ring (902) are fixedly connected to the fixed ring plate (903); the middle of the fixed ring plate (903) is provided with a threaded hole (904); and the inner sides of the middle of the rear protective ring (901) and the front protective ring (902) are provided with a storage groove (905).

5. The highly corrosion-resistant flange according to claim 1, characterized in that: The first flange body (1) and the second flange body (4) are both placed in the storage groove (905).

6. A highly corrosion-resistant flange according to claim 4, characterized in that: The right side of the rear protective ring (901) and the left side of the front protective ring (902) are both fixedly connected with a fixing plate (11).

7. The highly corrosion-resistant flange according to claim 1, characterized in that: A protruding sealing plate is provided on the inner side of the middle of the sealing ring (10), and the upper and lower side surfaces of the sealing plate in the middle of the sealing ring (10) are in contact with the outer end of the lower surface of the first flange body (1) and the outer end of the upper surface of the second flange body (4).

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