Long neck shoulder ring flange for vacuum cavity

Abstract

The utility model discloses a long-neck shoulder ring flange for a vacuum cavity, and relates to the technical field of long-neck shoulder ring flanges. The long-neck shoulder ring flange for the vacuum cavity comprises a long-neck pipe, one end of the long-neck pipe is fixedly connected with a shoulder ring flange body, two sets of attaching plates abut against the side, close to the long-neck pipe, of the shoulder ring flange body, the two sets of attaching plates are symmetrically arranged, and the attaching plates and a sealing outer ring rotate outside a rotating shaft through a rotating groove; one side of the attaching plate can be attached to and sealed with the shoulder ring flange body, and then the sealing rubber ring is tightly attached to the outer portion of the shoulder ring flange body, so that the long neck pipe and the shoulder ring flange body are sealed when being connected and used, the effect of tight attaching for sealing is achieved, and the problem that in the prior art, multiple sets of bolts are adopted for installation and sealing, and the sealing effect is poor is solved. Therefore, the sealing effect when the long neck pipe is connected with the shoulder ring flange main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of long-neck shoulder-ring flanges, and particularly relates to a long-neck shoulder-ring flange for a vacuum cavity. Background Art

[0002] A flange, also called a flange convex disc or a flange, is an annular part used to connect devices or components such as pipelines, valves, pumps, etc. It is usually equipped with bolt holes, and realizes the tight connection between components through fasteners such as bolts and nuts, and forms an effective seal at the connection to prevent the leakage of the medium. The long-neck shoulder-ring flange is a flange with a longer connecting pipeline.

[0003] According to a flange disclosed in Chinese Patent Publication No. CN219120042U, which includes a connecting cylinder and a flange disc. One end of the flange disc is provided with a connecting pipe, the inner wall of the other end is provided with an installation groove, and the outer wall is provided with a first installation ring; a circle of clamping grooves is arranged on the outer periphery of the installation groove. The two sides of the connecting cylinder are respectively provided with an installation sleeve and a clamping sleeve from the inside to the outside, and the outer wall is provided with a second installation ring. The installation sleeve is threadedly connected with the groove wall of the installation groove. The clamping sleeve is clamped with the clamping groove. A first installation hole is arranged on the first installation ring; a second installation hole is arranged on the second installation ring; the first installation hole and the second installation hole correspond to each other one by one. The structure of the utility model is compact, the installation operation is simple, and by using the clamping of the clamping sleeve and the clamping groove and the threaded connection of the installation sleeve and the installation groove, the sealing performance and tightness of the connection between the flange disc and the connecting cylinder are enhanced, which is beneficial to leak prevention and corrosion prevention. Lubricating oil is added through the oil inlet hole and the fastening hole, making the disassembly smoother and facilitating the maintenance and repair of the flange.

[0004] The above flange connection method uses bolts inserted into the flange disc for fixation. However, the flange disc of the long-neck shoulder-ring flange is relatively narrow, resulting in more bolts required for connection, inconvenient connection and disassembly, and poor sealing effect caused by thermal expansion and contraction. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a long-neck shoulder-ring flange for a vacuum cavity, which solves the problems that the flange disc of the long-neck shoulder-ring flange is relatively narrow, resulting in more bolts required for connection, inconvenient connection and disassembly, and poor sealing effect caused by thermal expansion and contraction.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: A long-neck shoulder-ring flange for a vacuum cavity includes a long-neck pipe, one end of the long-neck pipe is fixedly connected with a shoulder-ring flange main body, a fitting plate abuts against one side of the shoulder-ring flange main body close to the long-neck pipe, there are two groups of the fitting plates arranged symmetrically, a sealing outer ring is fixedly connected to a position close to the outside on the opposite sides of the fitting plates, a sealing rubber ring is fixedly connected inside the sealing outer ring, and an opening and closing assembly is arranged on one side of the fitting plate and the sealing outer ring.

[0007] Preferably, the opening and closing assembly includes a rotating groove, which is opened on one side of the fitting plate and the sealing outer ring, and a rotating shaft is rotatably connected inside the rotating groove.

[0008] Preferably, the side of the shoulder ring flange body away from the long neck tube is chamfered, the sealing rubber ring abuts against the outside of the shoulder ring flange body, and communication holes are opened inside the shoulder ring flange body and the long neck tube.

[0009] Preferably, an upper mounting plate is fixedly connected to the side of the fitting plate and the sealing outer ring away from the rotating groove. A lower mounting plate is arranged below the upper mounting plate, and the lower mounting plate is fixedly connected to one end of the sealing outer ring and the fitting plate. A fixing assembly is arranged inside the upper mounting plate and the lower mounting plate.

[0010] Preferably, the fixing assembly includes a polyethylene bolt, the polyethylene bolt passes through the inside of the upper mounting plate and the lower mounting plate, and an upper polyethylene nut and a lower polyethylene nut are rotatably connected to the outside of the polyethylene bolt.

[0011] Preferably, one side of the upper polyethylene nut abuts against the side of the upper mounting plate away from the lower mounting plate, and one side of the lower polyethylene nut abuts against the side of the lower mounting plate away from the upper mounting plate.

[0012] The utility model provides a long-neck shoulder ring flange for a vacuum chamber. Compared with the prior art, the following beneficial effects are achieved:

[0013] 1. For the long-neck shoulder ring flange for the vacuum chamber, the fitting plate and the sealing outer ring can rotate outside the rotating shaft by relying on the rotating groove, so that one side of the fitting plate can be attached and sealed to the shoulder ring flange body. Then, through the tight fit of the sealing rubber ring with the outside of the shoulder ring flange body, the connection between the long neck tube and the shoulder ring flange body can be sealed during use, achieving the effect of tight fit for sealing, solving the problem that a large number of bolts are used for installation and sealing in the past, resulting in poor sealing due to too many bolts at the connection, and improving the sealing effect when the long neck tube and the shoulder ring flange body are connected.

[0014] 2. For the long-neck shoulder ring flange for the vacuum chamber, the upper polyethylene nut is placed on the top of the upper mounting plate, the polyethylene bolt is rotated along the inside of the upper polyethylene nut, the polyethylene bolt penetrates into the upper mounting plate and the lower mounting plate, and then the lower polyethylene nut is rotatably connected to the outside of the polyethylene bolt, and the upper polyethylene nut and the lower polyethylene nut are squeezed towards each other, thereby fixing the upper mounting plate and the lower mounting plate, achieving the effect of more stable installation of the fitting plate and the sealing outer ring, solving the problem that only using the rotating shaft and the rotating groove to control the opening and closing results in uneven closing force after installation and sealing loosening, and improving the stability after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 Schematic diagram of the three-dimensional sectional structure of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structure diagram at position A in the present utility model;

[0018] Figure 4 Schematic diagram of the sectional structure of the sealing ring of the present utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged structure diagram at position B in the present utility model.

[0020] In the figure: 1, long neck tube; 2, shoulder ring flange main body; 3, fitting plate; 4, sealing outer ring; 5, sealing rubber ring; 6, rotating groove; 7, rotating shaft; 8, upper mounting plate; 9, lower mounting plate; 10, upper polyethylene nut; 11, lower polyethylene nut; 12, polyethylene bolt; 13, communication hole. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a long neck shoulder ring flange for a vacuum cavity, including a long neck tube 1, one end of the long neck tube 1 is fixedly connected to a shoulder ring flange main body 2, a fitting plate 3 is abutted against one side of the shoulder ring flange main body 2 close to the long neck tube 1, there are two groups of fitting plates 3 arranged symmetrically, a sealing outer ring 4 is fixedly connected to the outer position of the opposite sides of the fitting plates 3, a sealing rubber ring 5 is fixedly connected inside the sealing outer ring 4, an opening and closing assembly is arranged on one side of the fitting plate 3 and the sealing outer ring 4, the opening and closing assembly includes a rotating groove 6, the rotating groove 6 is opened on one side of the fitting plate 3 and the sealing outer ring 4, a rotating shaft 7 is rotatably connected inside the rotating groove 6, the side of the shoulder ring flange main body 2 away from the long neck tube 1 is chamfered, the sealing rubber ring 5 abuts against the outside of the shoulder ring flange main body 2, and a communication hole 13 is opened inside the shoulder ring flange main body 2 and the long neck tube 1.

[0023] During operation, when installed, the fitting plate 3 and the sealing outer ring 4 can rotate around the outside of the rotating shaft 7 by relying on the rotating groove 6, enabling one side of the fitting plate 3 to fit and seal with the shoulder ring flange body 2. Then, through the sealing rubber ring 5, it closely fits with the outside of the shoulder ring flange body 2, thereby sealing the connection between the long neck pipe 1 and the shoulder ring flange body 2 during use, achieving the effect of tight fitting and sealing. In this way, the substance to be transported can be conveyed through the communication hole 13 from the communication holes 13 opened in the long neck pipe 1 and the shoulder ring flange body 2, solving the problem that in the past, multiple groups of bolts were used for installation and sealing, resulting in poor sealing due to a large number of bolts at the connection. The sealing effect when the long neck pipe 1 and the shoulder ring flange body 2 are connected is improved.

[0024] On the side of the fitting plate 3 and the sealing outer ring 4 away from the rotating groove 6, an upper mounting plate 8 is fixedly connected. Below the upper mounting plate 8, a lower mounting plate 9 is provided. The lower mounting plate 9 is fixedly connected to one end of the sealing outer ring 4 and the fitting plate 3. Inside the upper mounting plate 8 and the lower mounting plate 9, a fixing component is provided. The fixing component includes a polyethylene bolt 12. The polyethylene bolt 12 passes through the inside of the upper mounting plate 8 and the lower mounting plate 9. The outside of the polyethylene bolt 12 is rotatably connected with an upper polyethylene nut 10 and a lower polyethylene nut 11. One side of the upper polyethylene nut 10 abuts against the side of the upper mounting plate 8 away from the lower mounting plate 9, and one side of the lower polyethylene nut 11 abuts against the side of the lower mounting plate 9 away from the upper mounting plate 8.

[0025] During operation, place the upper polyethylene nut 10 on the top of the upper mounting plate 8, rotate the polyethylene bolt 12 along the inside of the upper polyethylene nut 10, let the polyethylene bolt 12 penetrate through the inside of the upper mounting plate 8 and the lower mounting plate 9, and then rotatably connect the lower polyethylene nut 11 to the outside of the polyethylene bolt 12, making the upper polyethylene nut 10 and the lower polyethylene nut 11 squeeze towards each other, thereby fixing the upper mounting plate 8 and the lower mounting plate 9, achieving a more stable effect of installing the fitting plate 3 and the sealing outer ring 4. In this way, the substance to be transported can be conveyed through the communication hole 13 from the communication holes 13 opened in the long neck pipe 1 and the shoulder ring flange body 2, solving the problem that only using the rotating shaft 7 and the rotating groove 6 to control the opening and closing results in uneven closing force after installation and sealing looseness, and improving the stability after connection.

[0026] During operation or use, when installing, the fitting plate 3 and the sealing outer ring 4 can rotate around the rotating shaft 7 by relying on the rotating groove 6. One side of the fitting plate 3 can be attached and sealed to the shoulder ring flange body 2, and then tightly attached to the outside of the shoulder ring flange body 2 through the sealing rubber ring 5, so as to seal the connection between the long neck pipe 1 and the shoulder ring flange body 2 during use, achieving the effect of tight fitting and sealing. This solves the problem that in the past, multiple sets of bolts were used for installation and sealing, resulting in poor sealing due to too many bolts at the connection. It improves the sealing effect when the long neck pipe 1 and the shoulder ring flange body 2 are connected. Place the upper polyethylene nut 10 on the top of the upper mounting plate 8, rotate the polyethylene bolt 12 along the inside of the upper polyethylene nut 10, let the polyethylene bolt 12 pass through the upper mounting plate 8 and the lower mounting plate 9, and then rotatably connect the lower polyethylene nut 11 to the outside of the polyethylene bolt 12, and let the upper polyethylene nut 10 and the lower polyethylene nut 11 squeeze towards each other, thereby fixing the upper mounting plate 8 and the lower mounting plate 9, achieving a more stable effect of installing the fitting plate 3 and the sealing outer ring 4. This solves the problem that only using the rotating shaft 7 and the rotating groove 6 to control the opening and closing results in uneven closing force after installation and sealing looseness, and improves the stability after connection.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long-neck shoulder ring flange for a vacuum chamber, comprising a long-neck tube (1), characterized in that: One end of the long neck tube (1) is fixedly connected to a shoulder ring flange body (2), and a side of the shoulder ring flange body (2) close to the long neck tube (1) is butted against a fitting plate (3). The fitting plates (3) are symmetrically arranged in two groups, and an outer sealing ring (4) is fixedly connected to an opposite side of the fitting plate (3) close to the outside, and a sealing rubber ring (5) is fixedly connected inside the outer sealing ring (4). An opening and closing component is arranged on one side of the fitting plate (3) and the outer sealing ring (4).

2. The long-neck shoulder ring flange for a vacuum chamber according to claim 1, characterized in that: The opening and closing assembly comprises a rotation groove (6), the rotation groove (6) being formed on one side of the bonding plate (3) and the sealing outer ring (4), and a rotation shaft (7) being rotatably connected inside the rotation groove (6).

3. The long-neck shoulder ring flange for a vacuum chamber according to claim 2, characterized in that: The shoulder ring flange body (2) is chamfered on one side away from the long neck tube (1), the sealing rubber ring (5) abuts against the outside of the shoulder ring flange body (2), and a connecting hole (13) is provided inside the shoulder ring flange body (2) and the long neck tube (1).

4. The long-neck shoulder ring flange for a vacuum chamber according to claim 3, characterized in that: An upper mounting plate (8) is fixedly connected to the bonding plate (3) and the sealing outer ring (4) on a side away from the rotating groove (6); a lower mounting plate (9) is arranged below the upper mounting plate (8); the lower mounting plate (9) is fixedly connected to the sealing outer ring (4) and one end of the bonding plate (3); and a fixing component is arranged inside the upper mounting plate (8) and the lower mounting plate (9).

5. The long-neck shoulder ring flange for a vacuum chamber according to claim 4, characterized in that: The fixing assembly comprises a polyethylene bolt (12), the polyethylene bolt (12) passing through the interior of the upper mounting plate (8) and the lower mounting plate (9), and the exterior of the polyethylene bolt (12) is rotatably connected to an upper polyethylene nut (10) and a lower polyethylene nut (11).

6. The long-neck shoulder ring flange for a vacuum chamber according to claim 5, characterized in that: One side of the upper polyethylene nut (10) abuts against a side of the upper mounting plate (8) away from the lower mounting plate (9), and one side of the lower polyethylene nut (11) abuts against a side of the lower mounting plate (9) away from the upper mounting plate (8).

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