Air supply pipeline connecting device

Abstract

The invention discloses an air supply pipeline connecting device which comprises a limiting piece, the limiting piece comprises a C-shaped clamping piece and an extension plate which is located on the same plane with an upper plate of the C-shaped clamping piece and fixedly connected with the upper plate of the C-shaped clamping piece, a fixing through hole is formed in the end, away from the C-shaped clamping piece, of the extension plate, and a pressing through hole is formed in a lower plate of the C-shaped clamping piece; the fixing bolt penetrates through the fixing nut, the upper plate of the C-shaped clamping piece and the steel pipe flange so as to fix the limiting piece to the steel pipe flange, the limiting piece can rotate with the fixing bolt as the axis, the pressing bolt penetrates through the pressing through hole and is in threaded connection with the lower plate of the C-shaped clamping piece, and the upper end of the pressing bolt abuts against the connecting part or the sealing plate. And the hose is connected with the air supply pipeline or the end part of the air supply pipeline is sealed by a sealing plate. When the sealing plate and the hose connector at the end of the air supply pipeline are replaced, only the pressing bolt and the rotating limiting piece need to be rotated, operation is easy, the workload is small, and the time cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to an air supply pipeline connecting device. Background Art

[0002] In order to carry out safe oil loading and unloading operations and ensure the safety of the operating environment for personnel, bulk transport of dangerous chemicals requires dry air ventilation of the cargo hold before personnel enter or approach the cargo hold to ensure that the toxic and harmful gases in the cargo hold area are purged in time. At the same time, according to the chemical loading manual and process, some special volatile goods that are not suitable for contact with water require timely and large-scale dry air ventilation of the cargo hold to ensure the volatilization of residual goods, instead of fresh water and seawater tank washing. The dry air ventilation operation of the cargo hold requires a temporary hose and connector to connect the end of the fixed pipe reserved in the cargo hold area. The hose is passed into the cargo hold through the small hatch cover of the cargo hold, and the degassing cap at the top of the corresponding cargo hold vent pipe is opened at the same time. The cargo hold ventilation system consists of a complete purge path through connectors, hoses, cargo holds, vent pipes and degassing caps. Therefore, the cargo hold ventilation hose connector is a device that is frequently used when handling cargo, and its safe, simple and accurate operation is of great significance to the above dry air ventilation process.

[0003] The existing gas supply pipe joints have the following defects: the gas supply pipe joints are too heavy, and require the cooperation of multiple people to accurately connect the joints and fix the pipe ends, resulting in high labor costs; the gas supply pipe joints are complicated to operate, and when connecting the hose to the gas supply pipe, the fasteners connecting the steel pipe end flange and the hose end flange need to be repeatedly disassembled to disassemble the blind flange and the docking hose, which is complicated to operate and labor-intensive. Summary of the invention

[0004] In view of the defects existing in the prior art, the present application provides an air supply pipeline connecting device to solve the technical problems in the prior art such as high labor cost, complex operation and large workload in connecting the air supply pipeline and the hose.

[0005] In order to achieve the purpose of the above invention, the technical solution provided by the present invention is as follows:

[0006] A gas supply pipeline connection device, wherein a steel pipe flange is fixedly provided at the end of the gas supply pipeline, characterized in that a hose connector is provided at the end of the hose connected to the gas supply pipeline, the hose connector comprises a circular ring-shaped connection portion, the inner diameter of the connection portion is equal to the inner diameter of the gas supply pipeline, the outer diameter of the connection portion is equal to the outer diameter of the steel pipe flange, the gas supply pipeline connection device comprises a limiter, the limiter comprises a C-shaped clip and an extension plate, the extension plate is fixedly connected to the upper plate of the C-shaped clip, and the extension plate and the upper plate of the C-shaped clip are in the same plane, and the extension plate is far A fixing through hole is provided at the end of the C-type clamp, and a clamping through hole is provided on the lower plate of the C-type clamp. When the air supply pipe connecting device is in use, the fixing through hole is opposite to the threaded hole of the steel pipe flange. The fixing bolt passes through the fixing nut, the upper plate of the C-type clamp and the steel pipe flange to fix the limit piece on the steel pipe flange, and the limit piece can rotate with the fixing bolt as the axis. The clamping bolt passes through the clamping through hole and is threadedly connected to the lower plate of the C-type clamp. The upper end of the clamping bolt abuts against the connecting part or the sealing plate to connect the hose to the air supply pipe or seal the end of the air supply pipe with the sealing plate.

[0007] In one embodiment, the hose connector also includes a tubular plug, the upper end of the plug is fixedly connected to the connecting part, the lower end of the plug is arranged in the hose, the inner diameter of the plug is equal to the inner diameter of the connecting part, the plug and the connecting part are concentrically arranged, and the hose connector is connected to the hose in a socket connection.

[0008] In one embodiment, sealing gaskets are provided between the steel pipe flange and the hose connector and between the steel pipe flange and the sealing plate, and a rotating nut is sleeved on the lower end of the fixing bolt.

[0009] In one embodiment, the connecting portion is provided with a plurality of receiving holes for accommodating the lower end of the fixing bolt and the rotating nut, and the sealing plate is provided with a notch for accommodating the lower end of the fixing bolt and the rotating nut.

[0010] In one embodiment, the receiving hole is a through hole, and the notch is a blind hole.

[0011] In one embodiment, the extension plate is an arc-shaped plate having an outer diameter equal to the diameter of the steel pipe flange.

[0012] In one embodiment, the clamping bolt is a butterfly bolt, and a clamping nut is welded to the outside of the clamping through hole.

[0013] In one embodiment, the number of the stoppers is less than the number of threaded holes of the steel pipe flange.

[0014] In one embodiment, the gas supply pipe, steel pipe flange and sealing plate are all made of fiberglass, the limiter is made of corrosion-resistant material, and the hose connector is made of lightweight corrosion-resistant material.

[0015] Compared with the prior art, this application has at least the following beneficial effects:

[0016] The limiter in the gas supply pipe connection device of the present invention can not only be fixed on the steel pipe flange at the end of the gas supply pipe, but also can be axially rotated on the steel pipe flange. When replacing the sealing plate and the hose connector at the end of the gas supply pipe, there is no need to disassemble any parts. It is only necessary to rotate the clamping bolt and rotate the limiter. The operation is simple, the workload is small, and the time cost is saved. The gas supply pipe connection device in this application can be applied to different types of flange connectors and has strong versatility. The hose connected by the gas supply pipe connection device in this application is provided with a hose connector including a circular connecting part. Compared with the hose flange in the prior art, the hose connector is thinner and lighter. When connecting the gas supply pipe and the hose, only one person is required to operate, saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of a gas supply pipeline connected to a hose through a gas supply pipeline connecting device in an embodiment of the present application;

[0018] Figure 2 is a cross-sectional view of a gas supply pipeline connected to a sealing plate through a gas supply pipeline connecting device in an embodiment of the present application;

[0019] Figure 3 is a bottom view of the gas supply pipeline connected to the sealing plate through the gas supply pipeline connecting device in the embodiment of the present application;

[0020] Figure 4 is a top view of a hose connector in an embodiment of the present application;

[0021] Figure 5 is a side view of a hose connector in an embodiment of the present application;

[0022] Figure 6 is a top view of a position limiting member in an embodiment of the present application;

[0023] Figure 7 is a cross-sectional view of a position limiting member in an embodiment of the present application;

[0024] Figure 8 is a cross-sectional view of a sealing plate in an embodiment of the present application;

[0025] Fig. 9 This is a top view of the sealing plate in the embodiment of the present application

[0026] Figure numerals: 1 is the air supply pipeline, 2 is the steel pipe flange, 3 is the fixing bolt, 4 is the fixing nut, 5 is the limit piece, 501 is the C-type clip, 502 is the extension plate, 6 is the sealing gasket, 7 is the hose connector, 8 is the clamping bolt, 9 is the hose, 10 is the sealing plate, 11 is the accommodating hole, 13 is the plug, 14 is the fixing through hole, 15 is the clamping through hole, 17 is the clamping nut, 18 is the notch, and 19 is the connecting part. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0028] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms and should not be understood as indicating or implying relative importance. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0030] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 7As shown, the present application provides a gas supply pipeline connection device, the end of the gas supply pipeline 1 is fixedly provided with a steel pipe flange 2, the end of the hose 9 connected to the gas supply pipeline 1 is provided with a hose connector 7, the hose connector 7 includes a circular ring-shaped connection portion 19, the inner diameter of the connection portion 19 is equal to the inner diameter of the gas supply pipeline 1, and the outer diameter of the connection portion 19 is equal to the outer diameter of the steel pipe flange 2, the gas supply pipeline connection device includes a stopper 5, as shown in FIG. Figure 6 , 7 As shown, the stopper 5 includes a C-shaped clip 501 and an extension plate 502, the extension plate 502 is fixedly connected to the upper plate of the C-shaped clip 501, and the arc-shaped extension plate 502 and the upper plate of the C-shaped clip 501 are in the same plane, the end of the extension plate 502 away from the C-shaped clip 501 is provided with a fixing through hole 14, and the lower plate of the C-shaped clip 501 is provided with a pressing through hole 15. When the gas supply pipeline connection device is in use, the fixing through hole 14 is connected to the thread of the steel pipe flange 2. The holes are relative to each other, and the fixing bolt 4 passes through the fixing nut, the upper plate of the C-type clamp 501 and the steel pipe flange 2 to fix the limiter 5 on the steel pipe flange 2, and the limiter 5 can rotate around the fixing bolt 4 as the axis, and the clamping bolt 8 passes through the clamping through hole 15 and is threadedly connected to the lower plate of the C-type clamp 501, and the upper end of the clamping bolt 8 abuts against the connecting part 19 or the sealing plate 10 to connect the hose 9 to the air supply pipe 1 or to seal the end of the air supply pipe 1 with the sealing plate 10.

[0033] The hose connector 7 also includes a tubular plug 13, the upper end of the plug 13 is fixedly connected to the connecting portion 19, the lower end of the plug 13 is arranged in the hose 9, the inner diameter of the plug 13 is equal to the inner diameter of the connecting portion 19, the plug 13 and the connecting portion 19 are concentrically arranged, and the hose connector 7 is connected to the hose 9 by a socket connection.

[0034] In order to increase the sealing performance of the air steel pipe connection device, sealing gaskets 6 are provided between the steel pipe flange 2 and the hose connector 7 and between the steel pipe flange 2 and the sealing plate 10. Figure 3 and 6 As shown, the extension plate 502 is an arc-shaped plate with an outer diameter equal to the diameter of the steel pipe flange 2. In this embodiment, the clamping bolt 8 is a butterfly bolt to facilitate the operation of the clamping bolt. Figure 7 As shown, a clamping nut 17 is welded to the outside of the clamping through hole 15 so that the clamping bolt 8 is threadedly connected to the lower plate of the C-shaped clip 501.

[0035] like Figure 1 , 2 As shown, the lower end of the fixing bolt 4 is sleeved with a rotating nut, so that the sealing gasket 6 and the steel pipe flange 2 are in closer contact. Figure 4 As shown, the connecting portion 19 is provided with a plurality of receiving holes 11, and the receiving holes 11 are used to place the lower end of the fixing bolt 4 and the rotating nut. Figure 8 , 9As shown, the sealing plate is provided with a notch 18, which is also used to place the lower end of the fixing bolt 4 and the rotating nut. In order to reduce the weight of the hose connector 7, the thickness of the connecting portion 19 is relatively thin, and in order to ensure the sealing effect of the sealing plate 10, the thickness of the sealing plate 10 is relatively thick, so the accommodating hole 11 is a through hole and the notch 18 is a blind hole.

[0036] Since the stopper 5 includes an extension plate, in order to have enough space on the upper surface of the steel pipe flange 2 to place the stopper 5, the number of the stopper 5 is less than the number of threaded holes of the steel pipe flange 2. Figure 3 As shown, in this embodiment, the steel pipe flange 2 is provided with 8 threaded holes, and the gas supply pipe connecting device includes 4 limit members.

[0037] The gas supply pipe 1, the steel pipe flange 2 and the sealing plate 10 are all made of fiberglass, the limit member 5 is made of corrosion-resistant material. In this embodiment, the limit member 5 is made of stainless steel, and the hose connector 7 is made of lightweight and corrosion-resistant material to ensure that the hose connector 7 is light and easy to operate.

[0038] The working principle of the gas supply pipeline connection device in this application is as follows:

[0039] Align the fixing through hole 14 of the extension plate 502 in the limit member 5 with the threaded hole of the steel pipe flange 2, place the sealing plate 10 close to the lower surface of the steel pipe flange 2, and align the notch 18 with the threaded hole of the steel pipe flange 2, pass the fixing bolt 4 through the fixing nut, the upper plate of the C-type clip 501 and the steel pipe flange 2, so that the limit member 5 is fixed to the steel pipe flange 2 and can be rotated around the fixing bolt 4 as the axis, rotate the limit member 5 so that the lower plate of the C-type clip 501 in the limit member 5 is located directly below the steel pipe flange 2, the clamping bolt 8 passes through the clamping through hole 15, the clamping bolt 8 is threadedly connected to the lower plate of the C-type clip 501, rotate the clamping bolt 8 so that the top of the clamping bolt 8 is against the sealing plate 10, fix the sealing plate 10 to the lower surface of the steel pipe flange 2, and seal the steel pipe. The end of the flange 2 is to prevent debris from entering the air supply pipeline; when the hose 9 needs to be connected to the air supply pipeline 1, rotate the clamping bolt 8 so that the top of the clamping bolt 8 leaves the sealing plate 10, rotate the connecting piece 5 so that the lower plate of the C-type clip 501 is located on the outside of the steel pipe flange 2, remove the sealing plate 10 from the steel pipe flange 2, and make the connecting part 19 of the hose connector 7 close to the lower surface of the steel pipe flange 2, and align the accommodating hole 11 with the threaded hole of the steel pipe flange 2, rotate the limiter 5 again, so that the lower plate of the C-type clip 501 in the limiter 5 is located directly below the steel pipe flange 2, rotate the clamping bolt 8 so that the top of the clamping bolt 8 is against the connecting part 19, thereby fixing the hose connector 7 to the lower surface of the steel pipe flange 2, and connecting the hose 9 to the air supply pipeline 1.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A gas supply pipeline connection device, wherein a steel pipe flange is fixedly provided at the end of the gas supply pipeline, characterized in that: The end of the hose connected to the air supply pipeline is provided with a hose connector, the hose connector includes a circular ring-shaped connecting portion, the inner diameter of the connecting portion is equal to the inner diameter of the air supply pipeline, the outer diameter of the connecting portion is equal to the outer diameter of the steel pipe flange, the air supply pipeline connecting device includes a limiter, the limiter includes a C-shaped clip and an extension plate, the extension plate is fixedly connected to the upper plate of the C-shaped clip, and the extension plate and the upper plate of the C-shaped clip are in the same plane, and the end of the extension plate away from the C-shaped clip is provided with a fixed through hole, the C The lower plate of the C-type clip is provided with a clamping through hole. When the air supply pipe connecting device is in use, the fixing through hole is opposite to the threaded hole of the steel pipe flange. The fixing bolt passes through the fixing nut, the upper plate of the C-type clip and the steel pipe flange to fix the limit piece on the steel pipe flange, and the limit piece can rotate with the fixing bolt as the axis. The clamping bolt passes through the clamping through hole and is threadedly connected to the lower plate of the C-type clip. The upper end of the clamping bolt abuts against the connecting part or the sealing plate to connect the hose to the air supply pipe or seal the end of the air supply pipe with the sealing plate.

2. The gas supply pipeline connection device according to claim 1, characterized in that: The hose connector also includes a tubular plug, the upper end of the plug is fixedly connected to the connecting part, the lower end of the plug is arranged in the hose, the inner diameter of the plug is equal to the inner diameter of the connecting part, the plug and the connecting part are concentrically arranged, and the hose connector is connected to the hose in a socket connection.

3. The gas supply pipeline connection device according to claim 1, characterized in that: Sealing gaskets are arranged between the steel pipe flange and the hose joint and between the steel pipe flange and the sealing plate, and a rotating nut is sleeved on the lower end of the fixing bolt.

4. The gas supply pipeline connection device according to claim 3, characterized in that: The connecting portion is provided with a plurality of receiving holes for accommodating the lower end of the fixing bolt and the rotating nut, and the sealing plate is provided with a notch for accommodating the lower end of the fixing bolt and the rotating nut.

5. The gas supply pipeline connection device according to claim 4, characterized in that: The accommodating hole is a through hole, and the notch is a blind hole.

6. The gas supply pipeline connection device according to claim 1, characterized in that: The extension plate is an arc-shaped plate whose outer diameter is equal to the diameter of the steel pipe flange.

7. The gas supply pipeline connection device according to claim 1, characterized in that: The clamping bolt is a butterfly bolt, and a clamping nut is welded to the outer side of the clamping through hole.

8. The gas supply pipeline connection device according to claim 1, characterized in that: The number of the stoppers is less than the number of the threaded holes of the steel pipe flange.

9. According to the gas supply pipeline connection device of claim 1, the gas supply pipeline, steel pipe flange and sealing plate are all made of fiberglass, the limiter is made of corrosion-resistant material, and the hose connector is made of lightweight corrosion-resistant material.

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