Flange with good sealing performance

Abstract

The flange with the good sealing performance comprises a first connecting flange and a second connecting flange, the left end of the first connecting flange and the right end of the second connecting flange are jointly provided with a fixing device, and the corresponding ends of the first connecting flange and the second connecting flange are each provided with a set of bolt holes. A protection device is installed on the outer surface of the first connecting flange and the outer surface of the second connecting flange together. According to the flange with the good sealing performance, the butt-joint clamping groove in the first connecting flange is in butt joint with the butt-joint clamping plate on the second connecting flange, so that the first connecting flange and the second connecting flange are in butt joint rapidly, and the first connecting flange and the second connecting flange are convenient to install; the first protection frame and the second protection frame are clamped on the flanges to protect the joint of the two flanges, so that external dust and water drops are prevented from easily entering the flanges from the joint to cause internal corrosion.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a flange with good sealing performance. Background Art

[0002] Flange, also known as flange flange or flange. 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 bolts are connected to each other as a combined sealing structure.

[0003] The existing patent (application number 202122829165.8) discloses a flange with good sealing performance, including a first flange plate and a second flange plate, a sealing gasket is bonded to the top of the first flange plate, the top of the sealing gasket is tightly fitted with the bottom of the second flange plate, a sealing ring is integrally formed with the top of the sealing gasket, a first ring groove for matching with the sealing ring is provided at the bottom of the second flange plate, the top of the sealing ring extends to the inner cavity of the first ring groove, a second ring groove is provided at the top of the sealing ring, a collar is threadedly connected to the top of the second flange plate, a sealing ring is fixedly connected to the bottom of the collar, and the outer surface of the sealing ring is plugged into the inner surface of the second ring groove.

[0004] After the existing flange is installed, the flange is not well protected, and external dust and water droplets can easily enter the inside of the flange from the connection, causing internal corrosion and affecting the sealing of the flange; in addition, the flange is not well connected during installation, which affects the installation efficiency of the flange. Utility Model Content

[0005] The main purpose of the utility model is to provide a flange with good sealing performance, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A flange with good sealing performance includes a No. 1 connecting flange and a No. 2 connecting flange, wherein the left end of the No. 1 connecting flange and the right end of the No. 2 connecting flange are jointly installed with a fixing device, a group of bolt holes are opened at the corresponding ends of the No. 1 connecting flange and the No. 2 connecting flange, and a protective device is jointly installed on the outer surfaces of the No. 1 connecting flange and the No. 2 connecting flange.

[0008] Preferably, sealing rings are installed at corresponding ends of the No. 1 connecting flange and the No. 2 connecting flange, a plurality of docking slots are opened at the right end of the No. 1 connecting flange, and a plurality of docking plates are installed at the left end of the No. 2 connecting flange. The docking slots on the No. 1 connecting flange are docked with the docking plates on the No. 2 connecting flange, so that the No. 1 connecting flange and the No. 2 connecting flange can be docked quickly, thereby facilitating the installation of the No. 1 connecting flange and the No. 2 connecting flange.

[0009] Preferably, the protective device includes a No. 1 protective frame and a No. 2 protective frame, the No. 1 protective frame is provided with mounting screws at the upper front and the upper rear, the No. 2 protective frame is provided with screw holes at the upper front and the upper rear, and the No. 1 protective frame and the No. 2 protective frame are installed on the outer surfaces of the No. 1 connecting flange and the No. 2 connecting flange. The No. 1 protective frame and the No. 2 protective frame are placed at the upper and lower ends of the flange respectively, and then the mounting screws are screwed into the screw holes, so that the No. 1 protective frame and the No. 2 protective frame are clamped on the flange to protect the connection between the two flanges, thereby preventing external dust and water droplets from easily entering the interior of the flange from the connection and causing internal corrosion.

[0010] Preferably, the fixing device comprises a No. 1 mounting seat and a No. 2 mounting seat, and a set of fixing screws are installed on the outer surfaces of the No. 1 mounting seat and the No. 2 mounting seat, the No. 1 mounting seat is installed at the left end of the No. 1 connecting flange, and the No. 2 mounting seat is installed at the right end of the No. 2 connecting flange. The mounting seat is fixed in a limited position by the fixing screws, and the mounting seat further supports and fixes the connecting flange.

[0011] Preferably, the docking card plate and the docking card slot are consistent in size and have corresponding positions on the left and right.

[0012] Preferably, the No. 1 protective frame and the No. 2 protective frame are both U-shaped.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. First, connect the docking slot on the No. 1 connecting flange with the docking plate on the No. 2 connecting flange, so that the No. 1 connecting flange and the No. 2 connecting flange can be quickly connected. At this time, people can easily pass the connecting bolts through the bolt holes on the two connecting flanges, so as to facilitate the installation of the No. 1 connecting flange and the No. 2 connecting flange. In addition, the mounting seat is limited and fixed by the fixing screws on the fixing device, and the mounting seat further supports and fixes the connecting flange.

[0015] 2. After the No. 1 connecting flange and the No. 2 connecting flange are installed, place the No. 1 protective frame and the No. 2 protective frame on the protective device on the upper and lower ends of the flange respectively, and then screw the mounting screws into the screw holes to clamp the No. 1 protective frame and the No. 2 protective frame on the flange to protect the connection between the two flanges, thereby preventing external dust and water droplets from easily entering the interior of the flange from the connection and causing internal corrosion. In addition, the design of the sealing ring inside the No. 1 connecting flange and the No. 2 connecting flange improves the sealing performance of the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a flange with good sealing performance according to the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of a No. 1 connecting flange and a No. 2 connecting flange of a flange with good sealing performance of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a flange protection device with good sealing performance according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of a flange fixing device with good sealing performance.

[0020] In the figure: 1. Connecting flange No. 1; 2. Connecting flange No. 2; 3. Protective device; 4. Fixing device; 5. Bolt hole; 20. Sealing ring; 21. Docking card plate; 22. Docking card slot; 30. Protective frame No. 1; 31. Protective frame No. 2; 32. Mounting screw; 33. Screw hole; 40. Mounting seat No. 1; 41. Mounting seat No. 2; 42. Fixing screw. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-4 As shown, a flange with good sealing performance includes a No. 1 connecting flange 1 and a No. 2 connecting flange 2, a fixing device 4 is installed on the left end of the No. 1 connecting flange 1 and the right end of the No. 2 connecting flange 2, a group of bolt holes 5 are opened on the corresponding ends of the No. 1 connecting flange 1 and the No. 2 connecting flange 2, and a protective device 3 is installed on the outer surfaces of the No. 1 connecting flange 1 and the No. 2 connecting flange 2.

[0025] The corresponding ends of the No. 1 connection flange 1 and the No. 2 connection flange 2 are both installed with sealing rings 20, the right end of the No. 1 connection flange 1 is provided with a plurality of docking slots 22, and the left end of the No. 2 connection flange 2 is provided with a plurality of docking card plates 21; the docking card plates 21 and the docking slots 22 are consistent in size and in corresponding positions. The docking slots 22 on the No. 1 connection flange 1 are docked with the docking card plates 21 on the No. 2 connection flange 2, so that the No. 1 connection flange 1 and the No. 2 connection flange 2 can be docked quickly, thereby facilitating the installation of the No. 1 connection flange 1 and the No. 2 connection flange 2.

[0026] The protective device 3 includes a No. 1 protective frame 30 and a No. 2 protective frame 31. The No. 1 protective frame 30 is installed with mounting screws 32 at the front and rear of the upper end. The No. 2 protective frame 31 is opened with screw holes 33 at the front and rear of the upper end. The No. 1 protective frame 30 and the No. 2 protective frame 31 are installed on the outer surfaces of the No. 1 connecting flange 1 and the No. 2 connecting flange 2. The No. 1 protective frame 30 and the No. 2 protective frame 31 are both U-shaped. The No. 1 protective frame 30 and the No. 2 protective frame 31 are placed at the upper and lower ends of the flange respectively, and then the mounting screws 32 are screwed into the screw holes 33, so that the No. 1 protective frame 30 and the No. 2 protective frame 31 are clamped on the flange to protect the connection between the two flanges, thereby preventing external dust and water droplets from easily entering the interior of the flange from the connection and causing internal corrosion.

[0027] The fixing device 4 includes a No. 1 mounting seat 40 and a No. 2 mounting seat 41. A set of fixing screws 42 are installed on the outer surfaces of the No. 1 mounting seat 40 and the No. 2 mounting seat 41. The No. 1 mounting seat 40 is installed on the left end of the No. 1 connecting flange 1, and the No. 2 mounting seat 41 is installed on the right end of the No. 2 connecting flange 2. The mounting seat is fixed in a limited position by the fixing screws 42, and the mounting seat further supports and fixes the connecting flange.

[0028] It should be noted that the utility model is a flange with good sealing performance. First, the docking groove 22 on the No. 1 connecting flange 1 is docked with the docking card plate 21 on the No. 2 connecting flange 2, so that the No. 1 connecting flange 1 and the No. 2 connecting flange 2 can be quickly docked. At this time, people can easily pass the connecting bolts through the bolt holes 5 on the two connecting flanges, so as to facilitate the installation of the No. 1 connecting flange 1 and the No. 2 connecting flange 2. In addition, the mounting seat is limited and fixed by the fixing screws 42 on the fixing device 4, and the mounting seat then supports and fixes the connecting flange. Then, the No. 1 protective frame 30 and the No. 2 protective frame 31 on the protective device 3 are respectively placed on the upper and lower ends of the flange, and then the mounting screws 32 are screwed into the screw holes 33, so that the No. 1 protective frame 30 and the No. 2 protective frame 31 are clamped on the flange to protect the connection between the two flanges, thereby preventing external dust and water droplets from easily entering the interior of the flange from the connection, causing internal corrosion, and the design of the sealing ring 20 inside the No. 1 connecting flange 1 and the No. 2 connecting flange 2 improves the sealing performance of the flange.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flange with good sealing performance, comprising a first connecting flange (1) and a second connecting flange (2), characterized in that: The left end of the No. 1 connecting flange (1) and the right end of the No. 2 connecting flange (2) are jointly installed with a fixing device (4), and the corresponding ends of the No. 1 connecting flange (1) and the No. 2 connecting flange (2) are each provided with a group of bolt holes (5), and the outer surfaces of the No. 1 connecting flange (1) and the No. 2 connecting flange (2) are jointly installed with a protective device (3).

2. A flange with good sealing performance according to claim 1, characterized in that: A sealing ring (20) is installed at one corresponding end of the No. 1 connecting flange (1) and the No. 2 connecting flange (2); a plurality of docking slots (22) are opened at the right end of the No. 1 connecting flange (1); and a plurality of docking cards (21) are installed at the left end of the No. 2 connecting flange (2).

3. A flange with good sealing performance according to claim 1, characterized in that: The protective device (3) comprises a first protective frame (30) and a second protective frame (31), the first protective frame (30) is provided with mounting screws (32) at the front and rear upper ends, the second protective frame (31) is provided with screw holes (33) at the front and rear upper ends, and the first protective frame (30) and the second protective frame (31) are installed on the outer surfaces of the first connecting flange (1) and the second connecting flange (2).

4. A flange with good sealing performance according to claim 1, characterized in that: The fixing device (4) comprises a first mounting seat (40) and a second mounting seat (41), and a set of fixing screws (42) are installed on the outer surfaces of the first mounting seat (40) and the second mounting seat (41). The first mounting seat (40) is installed at the left end of the first connecting flange (1), and the second mounting seat (41) is installed at the right end of the second connecting flange (2).

5. A flange with good sealing performance according to claim 2, characterized in that: The docking card plate (21) and the docking card slot (22) have the same size and are located in corresponding positions on the left and right.

6. A flange with good sealing performance according to claim 3, characterized in that: The first protection frame (30) and the second protection frame (31) are both U-shaped.

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