Loop type metal flange

Abstract

The utility model relates to the technical field of lap joint flanges, in particular to a lap joint type metal flange which comprises a connecting pipe and a connecting mechanism, the connecting mechanism comprises a positioning ring, an upper damping ring, a lower damping ring, two flange plates, a built-in cylinder and a bottom ring, and the two flange plates can freely slide on the peripheral side of the connecting pipe. The upper damping ring and the lower damping ring are matched with each other, rigid connection of two adjacent disc bodies is reduced, meanwhile, the barrel and the reinforcing rods are used for reinforcing the structural strength of the connecting pipe, the design structure is simple, production is convenient, and the problem that during flange connection, only the position of one flange plate can be adjusted, and the connecting efficiency is high is solved. And the attachment surface of the flange is easy to damage due to direct attachment after connection.

Description

Technical Field

[0001] This utility model relates to the field of loose flange technology, and in particular to a loose metal flange. Background Technology

[0002] With the widespread use of loose flanges in the market, the requirements for their production and use are becoming increasingly stringent. Existing loose flanges have issues such as insufficient sealing when connected to the flange and an unstable connection that makes them prone to loosening during use.

[0003] In the prior art, patent (CN212672637U) proposes a loose-fitting metal sealing flange, including a first flange, a first opening inside the first flange, a plurality of first bolt holes equally distributed around the center point inside the first flange, a second flange below the first flange, a second opening inside the second flange, a plurality of second bolt holes equally distributed around the center point inside the second flange, a stop block inside the second opening, a base at the upper end of the first flange, the base being movably connected to the first flange, a third opening inside the base, and a connecting pipe through the third opening at the lower end of the base.

[0004] However, in the aforementioned prior art, only the position of one flange can be adjusted during flange connection, and the direct contact after connection can easily damage the contact surface of the flange. Summary of the Invention

[0005] The purpose of this utility model is to provide a loose-fitting metal flange, which solves the problem that in the prior art, only the position of one flange can be adjusted when connecting flanges, and the flange mating surface is easily damaged due to direct contact after connection.

[0006] To achieve the above objectives, this utility model provides a loose-fitting metal flange, including a connecting pipe and a connecting mechanism. The connecting mechanism includes a positioning ring, an upper damping ring, a lower damping ring, two flanges, an inner cylinder, and a bottom ring. The bottom ring is fixedly connected to the connecting pipe and located at the lower end of the connecting pipe. The inner cylinder is fixedly connected to the connecting pipe and located on the inner wall of the connecting pipe. Both flanges are slidably connected to the connecting pipe and located on the periphery of the connecting pipe. The upper damping ring is fixedly connected to one of the flanges and located below the one flange. The lower damping ring is fixedly connected to the other flange and located below the other flange. The positioning ring is fixedly connected to the bottom ring and located on the periphery of the bottom ring.

[0007] Each flange includes a flange body and multiple bolt sleeves. Each bolt sleeve is fixedly connected to the flange body and located on the inner side of the flange body. The flange body is slidably connected to the connecting pipe and located on the periphery of the connecting pipe.

[0008] The built-in cylinder includes a cylinder body and multiple reinforcing rods. Each reinforcing rod is fixedly connected to the cylinder body and located on the inner wall of the cylinder body. The cylinder body is fixedly connected to the connecting pipe and located on the inner side of the connecting pipe.

[0009] The bottom ring includes a ring body and multiple abutment rings. Each abutment ring is fixedly connected to the ring body and located below the ring body. The ring body is fixedly connected to the connecting pipe and located at the lower end of the connecting pipe.

[0010] The connecting pipe includes a pipe body and an opening / closing ring. The opening / closing ring is fixedly connected to the pipe body and located at the upper end of the pipe body. The pipe body is fixedly connected to the cylinder and located on the periphery of the cylinder body.

[0011] This utility model discloses a loose-fitting metal flange, in which both flanges can slide freely around the periphery of the connecting pipe. The upper and lower damping rings cooperate to reduce the rigid connection between the two adjacent flanges. At the same time, the cylinder and multiple reinforcing rods are used to strengthen the structural strength of the connecting pipe. This design is simple, easy to manufacture, and solves the problem that only one flange can be adjusted during flange connection, and that the flange mating surface is easily damaged due to direct contact after connection. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of a loose-fitting metal flange according to this utility model.

[0014] Figure 2 This is a front view of a loose-fitting metal flange of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0017] 101-Connecting pipe, 102-Connecting mechanism, 103-Positioning ring, 104-Upper damping ring, 105-Lower damping ring, 106-Flange, 107-Inner cylinder, 108-Bottom ring, 109-Disc body, 110-Bolt sleeve, 111-Cylinder body, 112-Reinforcing rod, 113-Ring body, 114-Supporting ring, 115-Pipe body, 116-Opening and closing ring. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the overall structure of a loose-fitting metal flange according to this utility model. Figure 2 This is a front view of a loose-fitting metal flange according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0020] This utility model provides a loose-fitting metal flange, including a connecting pipe 101 and a connecting mechanism 102. The connecting mechanism 102 includes a positioning ring 103, an upper shock-absorbing ring 104, a lower shock-absorbing ring 105, two flanges 106, an inner cylinder 107, and a bottom ring 108. Each flange 106 includes a disc body 109 and multiple bolt sets 110. The inner cylinder 107 includes a cylinder body 111 and multiple reinforcing rods 112. The bottom ring 108 includes a ring body 113 and multiple supporting rings 114. The connecting pipe 101 includes a pipe body 115 and an opening / closing ring 116.

[0021] In this specific embodiment, the bottom ring 108 is fixedly connected to the connecting pipe 101, the inner cylinder 107 is fixedly connected to the connecting pipe 101, both flanges 106 are slidably connected to the connecting pipe 101, the upper damping ring 104 is fixedly connected to one of the flanges 106, the lower damping ring 105 is fixedly connected to the other flange 106, the positioning ring 103 is fixedly connected to the bottom ring 108, each bolt 110 is fixedly connected to the disc body 109, the disc body 109 is slidably connected to the connecting pipe 101, each reinforcing rod 112 is fixedly connected to the cylinder 111, the cylinder 111 is fixedly connected to the connecting pipe 101, and each abutment ring 114 is fixedly connected to the bottom ring 108. The ring body 113 is fixedly connected to the connecting pipe 101, the opening and closing ring 116 is fixedly connected to the pipe body 115, and the pipe body 115 is fixedly connected to the cylinder body 111. The two flanges 106 provided can slide freely around the periphery of the connecting pipe 101. The upper damping ring 104 and the lower damping ring 105 cooperate with each other to reduce the rigid connection between the two adjacent flange bodies 109. At the same time, the cylinder body 111 and multiple reinforcing rods 112 are used to strengthen the structural strength of the connecting pipe 101. This design is simple and easy to manufacture. It solves the problem that only one flange 106 can be adjusted during flange connection, and the flange contact surface is easily damaged due to direct contact after connection.

[0022] The bottom ring 108 is located at the lower end of the connecting pipe 101, the inner cylinder 107 is located on the inner wall of the connecting pipe 101, both flanges 106 are located on the periphery of the connecting pipe 101, the upper damping ring 104 is located below one of the flanges 106, the lower damping ring 105 is located below the other flange 106, and the positioning ring 103 is located on the periphery of the bottom ring 108. The upper damping ring 104 and the lower damping ring 105 are made of the same soft corrosion-resistant material. The two discs 109 are not affected by external substances during the mutual bonding process and can deform after bonding. After the discs 109 are rotated and connected to the bolts 110, the tightness of the connection between the two discs 109 by the bolts 110 can also be strengthened, thereby enhancing the connection durability of the discs 109 without affecting the connection of the discs 109.

[0023] Secondly, each of the bolts 110 sets is located on the inner side of the disc 109, which is located on the periphery of the connecting pipe 101. Each of the reinforcing rods 112 is located on the inner wall of the cylinder 111, which is located on the inner side of the connecting pipe 101. The multiple reinforcing rods 112 on the inner side of the cylinder 111 are used to enhance the structural strength of the inner wall of the connecting pipe 101. The opening and closing ring 116 has multiple annular grooves, which not only enhance the aesthetics but also increase the friction between the connection and the external pipe and achieve a better fit.

[0024] Meanwhile, each of the abutment rings 114 is located below the ring body 113, which is located at the lower end of the connecting pipe 101. The opening and closing ring 116 is located at the upper end of the pipe body 115, which is located around the cylinder 111. The multiple abutment rings 114 are evenly arranged below the ring body 113 to raise the height of the disc body 109 above the positioning ring 103. During the connection process, the positions of the two disc bodies 109 are free to move. The fixed position of the disc body 109 is determined according to the actual installation requirements. When the two disc bodies 109 abut against each other, the upper shock-absorbing ring 104 and the lower shock-absorbing ring 105 can achieve the shock absorption effect, while avoiding direct abutment between the two disc bodies 109 and reducing rigid connection. Similarly, the bolts 110 on the periphery of the disc body 109 are all threaded to allow the bolts 110 to rotate, which facilitates the connection of two adjacent disc bodies 109.

[0025] In this embodiment, the upper damping ring 104 and the lower damping ring 105 are made of the same soft, corrosion-resistant material. The two discs 109 are not affected by external substances during their mating process and can deform after mating. After the discs 109 are rotated and connected to the bolts 110, the tightness of the connection between the two discs 109 is strengthened, enhancing the durability of the disc connection without affecting its performance. Multiple reinforcing rods 112 on the inner side of the cylinder 111 enhance the structural strength of the inner wall of the connecting pipe 101. The opening and closing ring 116 has multiple annular grooves, which enhance aesthetics and improve the friction between the ring and the external pipe. To ensure a better fit, multiple abutment rings 114 are evenly arranged below the ring body 113 to raise the height of the disc body 109 above the positioning ring 103. During use and connection, the positions of the two disc bodies 109 are free to move. The fixed position of the disc body 109 is determined according to the actual installation requirements. When the two disc bodies 109 abut against each other, the upper shock-absorbing ring 104 and the lower shock-absorbing ring 105 can achieve a shock-absorbing effect, while avoiding direct abutment between the two disc bodies 109 and reducing rigid connection. Similarly, the bolts 110 on the periphery of the disc body 109 are all threaded to allow the bolts 110 to rotate, facilitating the connection of adjacent disc bodies 109.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A metal flange with a slip-on type, comprising a connecting pipe, characterized in that, it further comprises a connecting mechanism, the connecting mechanism comprises a positioning ring, an upper damping ring, a lower damping ring, two flange plates, an inner cylinder and a bottom ring, the bottom ring is fixedly connected with the connecting pipe and located at the lower end of the connecting pipe, the inner cylinder is fixedly connected with the connecting pipe and located at the inner wall of the connecting pipe, the two flange plates are both slidingly connected with the connecting pipe and located at the circumferential side of the connecting pipe, the upper damping ring is fixedly connected with one of the flange plates and located below the one flange plate, the lower damping ring is fixedly connected with the other flange plate and located below the other flange plate, and the positioning ring is fixedly connected with the bottom ring and located at the circumferential side of the bottom ring.

2. The metal flange with a slip-on type according to claim 1, characterized in that, each of the flange plates comprises a disc body and a plurality of bolt sleeves, each of the bolt sleeves is fixedly connected with the disc body and located at the inner side of the disc body, and the disc body is slidingly connected with the connecting pipe and located at the circumferential side of the connecting pipe.

3. The metal flange with a slip-on type according to claim 2, characterized in that, the inner cylinder comprises a cylinder body and a plurality of reinforcing rods, each of the reinforcing rods is fixedly connected with the cylinder body and located at the inner wall of the cylinder body, and the cylinder body is fixedly connected with the connecting pipe and located at the inner side of the connecting pipe.

4. The metal flange with a slip-on type according to claim 3, characterized in that, the bottom ring comprises a ring body and a plurality of abutting rings, each of the abutting rings is fixedly connected with the ring body and located below the ring body, and the ring body is fixedly connected with the connecting pipe and located at the lower end of the connecting pipe.

5. The metal flange with a slip-on type according to claim 4, characterized in that, the connecting pipe comprises a pipe body and an open-close ring, the open-close ring is fixedly connected with the pipe body and located at the upper end of the pipe body, and the pipe body is fixedly connected with the cylinder body and located at the circumferential side of the cylinder body.

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