Connecting structure for gas pipeline installation

Abstract

The utility model discloses a connecting structure for gas pipeline installation, which belongs to the technical field of gas pipeline installation and is characterized by comprising two connecting pipes, two protective frames are arranged on the surfaces of the connecting pipes, flange plates are fixedly connected to opposite sides of the two connecting pipes, six bolts are arranged inside the flange plates, and the two protective frames are connected with the flange plates. The opposite sides of the two protection frames are each provided with a protection mechanism and three auxiliary mechanisms. The protection mechanism comprises a fixed arc plate, a movable arc plate, three mounting rods, three fixing frames and two sealing arc plates, the surface of the fixed arc plate is fixedly connected with the interior of the protection frame, and the problems that most of existing gas pipelines are connected through flange plates, but the sealing performance of the flange plates is relatively poor, leakage is prone to occurring, the flange plates are exposed in air for a long time, and the sealing performance is poor are solved. And the problem that the maintenance effect on the joint of the gas pipeline in the later period is affected due to the fact that the bolt is prone to rust and is not easy to disassemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline installation technology, and in particular to a connection structure for gas pipeline installation. Background Technology

[0002] Gas pipelines are pipeline systems that transport gas from gas sources to users and provide gas supply to users. They are an important part of the urban gas supply system and mainly consist of pipeline bodies, fittings, valves, compensators, supports, etc.

[0003] The existing technology has the following problems that have not been well resolved: the structure is relatively simple and cannot be applied to support pipes of different specifications, which requires users to replace different support devices to support the pipes, increasing asset consumption and reducing practicality; the device does not have a buffer and shock absorption structure, and cannot buffer and protect the pipes, which reduces the service life of the pipes and cannot meet people's needs well.

[0004] An existing patent (publication number: CN215488020U) discloses a support device for urban gas pipeline installation, including an anti-slip mat and a bidirectional motor. A mounting frame is vertically mounted above the anti-slip mat, and a base is mounted parallel to the right side of the mounting frame. A protective cover is fixedly connected above the base, and a mounting plate is movably mounted inside the protective cover. The bidirectional motor is located above the mounting plate. Compared with existing ordinary urban gas pipeline installation support devices, this device can be applied to support pipelines of different specifications, eliminating the need for users to replace different support devices, reducing asset consumption, and improving the practicality of the device. Simultaneously, the device incorporates a shock-absorbing and protective structure, which can reduce vibration and impact forces during pipeline support, protecting the gas pipeline from damage and extending its service life. It is worthy of widespread use.

[0005] To address the aforementioned issues, existing patents offer solutions. However, these solutions have certain limitations in practice. Most existing gas pipelines are connected by flanges, but flanges have relatively poor sealing performance, making them prone to leakage. Furthermore, prolonged exposure to air can cause bolts to rust, making them difficult to disassemble and thus affecting the effectiveness of subsequent maintenance of gas pipeline connections.

[0006] Therefore, a connection structure for gas pipeline installation is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a connection structure for gas pipeline installation, which can solve the problem that most existing gas pipelines are connected by flanges, but the sealing performance of flanges is relatively poor, prone to leakage, and long-term exposure to air can easily cause bolts to rust, making it difficult to disassemble the bolts, thus affecting the effectiveness of later maintenance of gas pipeline connections.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a connection structure for gas pipeline installation, comprising two connecting pipes, two protective frames provided on the surface of the connecting pipes, flanges fixedly connected to opposite sides of the two connecting pipes, six bolts provided inside the flanges, and protective mechanisms and three auxiliary mechanisms provided on opposite sides of the two protective frames.

[0009] The protective mechanism includes a fixed arc plate, a movable arc plate, three mounting rods, three fixing frames, and two sealing arc plates. The surface of the fixed arc plate is fixedly connected to the interior of the protective frame, the surface of the movable arc plate is slidably connected to the interior of the protective frame, the surface of the mounting rod is fixedly connected to the left side of the movable arc plate, the interior of the fixing frame is threadedly connected to the surface of the mounting rod, the right side of the sealing arc plate is fixedly connected to the left side of the movable arc plate, and the surface of the sealing arc plate is in close contact with the interior of the protective frame.

[0010] Preferably, the auxiliary mechanism includes three waterproof plates fixedly connected inside the movable arc plate, and a waterproof sleeve is fixedly connected to the right side of the waterproof plate, with the inside of the waterproof sleeve in contact with the surface of the bolt.

[0011] Preferably, a connecting sleeve is fixedly connected to the right side of the flange, and a first sealing gasket is tightly connected inside the connecting sleeve.

[0012] Preferably, a support sleeve is fixedly connected to the surface of the first sealing gasket, and the surface of the support sleeve is fixedly connected to the interior of the fixed arc plate.

[0013] Preferably, a second sealing gasket is fixedly connected inside the waterproof sleeve, and the right side of the second sealing gasket is in close contact with the left side of the flange.

[0014] Preferably, the surface of the mounting rod is in contact with the interior of the flange, and the two moving arc plates are in close contact on opposite sides.

[0015] Preferably, both the interior of the movable arc plate and the interior of the fixed arc plate are fixedly connected with sealing arc gaskets, and the interior of the sealing arc gaskets is in close contact with the surface of the connecting pipe.

[0016] Preferably, the surface of the connecting pipe is provided with four limiting pads, and the front and rear sides of the limiting pads are in close contact with the opposite sides of the two protective frames.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application rotates the fixed frame, causing the fixed frame to move the movable arc plate via the mounting rod, which in turn moves the sealing arc gasket, thereby achieving protection and initial sealing of the connection parts;

[0019] 2. This application enables the waterproof membrane and waterproof sleeve to bring the second sealing gasket into contact with the bolt surface, while preventing moisture in the air from contacting the bolt and reducing the risk of bolt rusting; the joint action of the connecting sleeve, the first sealing gasket, the second sealing gasket, and the sealing arc gasket improves the sealing performance of the flange at the connection. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the connection structure for gas pipeline installation according to this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the internal structure of the protective frame in this utility model;

[0022] Figure 3 This is a three-dimensional connection diagram of the protective mechanism in this utility model;

[0023] Figure 4 This is a three-dimensional connection diagram of the limiting pad and the protective frame in this utility model;

[0024] Figure 5 This is a three-dimensional connection diagram of the auxiliary mechanism in this utility model;

[0025] Figure 6 This is a three-dimensional connection diagram of the connecting sleeve and the flange in this utility model.

[0026] In the diagram, 1. Connecting pipe; 2. Protective frame; 3. Auxiliary mechanism; 301. Waterproof membrane; 302. Waterproof sleeve; 303. Connecting sleeve; 304. First sealing gasket; 305. Support sleeve; 4. Protective mechanism; 401. Fixed arc plate; 402. Moving arc plate; 403. Mounting rod; 404. Fixed frame; 405. Sealing arc plate; 5. Sealing arc gasket; 6. Limiting gasket; 7. Bolt; 8. Second sealing gasket; 9. Flange. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] A connection structure for gas pipeline installation includes two connecting pipes 1, two protective frames 2 are provided on the surface of the connecting pipes 1, and flanges 9 are fixedly connected to opposite sides of the two connecting pipes 1. Six bolts 7 are provided inside the flanges 9, and protective mechanisms 4 and three auxiliary mechanisms 3 are provided on opposite sides of the two protective frames 2.

[0030] The protective mechanism 4 includes a fixed arc plate 401, a movable arc plate 402, three mounting rods 403, three fixing frames 404, and two sealing arc plates 405. The surface of the fixed arc plate 401 is fixedly connected to the interior of the protective frame 2. The surface of the movable arc plate 402 is slidably connected to the interior of the protective frame 2. The surface of the mounting rod 403 is fixedly connected to the left side of the movable arc plate 402. The interior of the fixing frame 404 is threadedly connected to the surface of the mounting rod 403. The right side of the sealing arc plate 405 is fixedly connected to the left side of the movable arc plate 402. The surface of the sealing arc plate 401 is in close contact with the interior of the protective frame 2.

[0031] In this embodiment: by aligning the flanges 9 of the two connecting pipes 1 and initially fixing them with bolts 7, the protective frame 2 moves the fixed arc plate 401 to a suitable position, and the mounting rod 403 is threadedly connected to the fixed frame 404, pushing the moving arc plate 402 to move inside the protective frame 2, so that the moving arc plate 402 and the fixed arc plate 401 are tightly fitted to the connecting pipe 1, while the sealing arc plate 405 is in close contact with the protective frame 2, thereby achieving protection and sealing of the connection of the connecting pipe 1.

[0032] Specifically, such as Figure 4 , Figure 5 As shown, the auxiliary mechanism 3 includes three waterproof plates 301 fixedly connected inside the movable arc plate 502. A waterproof sleeve 302 is fixedly connected to the right side of the waterproof plate 301, and the inside of the waterproof sleeve 302 is in contact with the surface of the bolt 7.

[0033] Specifically, such as Figure 5 , Figure 6 As shown, a connecting sleeve 303 is fixedly connected to the right side of the flange 9, and a first sealing gasket 304 is tightly connected inside the connecting sleeve 303.

[0034] Specifically, such as Figure 5 , Figure 6 As shown, a support sleeve 305 is fixedly connected to the surface of the first sealing gasket 304, and the surface of the support sleeve 305 is fixedly connected to the interior of the fixed arc plate 401.

[0035] In this embodiment: by fitting the waterproof sleeve 302 onto the bolt 7, the waterproof plate 301 can easily protect the bolt 7, and the support sleeve 305 can be connected to the fixed arc plate 401, thereby enhancing the sealing of the connection and achieving a sealing effect.

[0036] Specifically, such as Figure 5 , Figure 6 As shown, a second sealing gasket 8 is fixedly connected inside the waterproof sleeve 302, and the right side of the second sealing gasket 8 is in close contact with the left side of the flange 9.

[0037] Specifically, such as Figure 4 , Figure 6 As shown, the surface of the mounting rod 403 is in contact with the interior of the flange 9, and the two moving arc plates 402 are in close contact on opposite sides.

[0038] In this embodiment: by fixing the surface of the second sealing gasket 8 to the inside of the protective sleeve 302, it is convenient to further prevent gas leakage from the bolt 7 connection. The surface of the mounting rod 403 is in contact with the inside of the flange 9, which facilitates the limiting of the mounting rod 403, thus achieving the effect of protecting and sealing the inside of the flange 9.

[0039] Specifically, such as Figure 1 , Figure 4 As shown, sealing arc gaskets 5 are fixedly connected inside both the movable arc plate 402 and the fixed arc plate 401, and the inside of the sealing arc gaskets 5 is in close contact with the surface of the connecting pipe 1.

[0040] Specifically, such as Figure 4 As shown, four limiting pads 6 are provided on the surface of the connecting pipe 1. The front and rear sides of the limiting pads 6 are in close contact with the opposite sides of the two protective frames 2.

[0041] In this embodiment: by moving the surfaces of the two sealing arc pads 5 to the inside of the moving arc plate 402 and the fixed arc plate 401 respectively, gas leakage from the gap between the connecting pipe 1 and the protective frame 2 can be prevented. The front and rear sides of the limiting pad 6 are in close contact with the opposite side of the two protective frames 2, thereby facilitating the limiting pad 6 to limit the protective frame 2 and achieving the effect of stabilizing the protective frame 2.

[0042] Working principle: When installing gas pipelines, the two connecting pipes 1 are initially connected using flanges 9 and bolts 7. Next, the protective frame 2 is installed, ensuring the accurate and stable installation of the limiting gasket 6 on the protective frame 2. Then, the fixed frame 404 is rotated, causing the moving arc plate 402 to move via the installation rod 403. This moving arc plate 402 then moves the sealing arc gasket 405, achieving protection and initial sealing of the connection. Next, the waterproof plate 301 and waterproof sleeve 302 bring the second sealing gasket 8 into contact with the surface of the bolt 7, reducing the risk of bolt 7 rusting. The combined action of the connecting sleeve 303, the first sealing gasket 304, the second sealing gasket 8, and the sealing arc gasket 5 improves the sealing performance of the flange 9 at the connection, preventing gas leakage. This solves the problem that most existing gas pipelines are connected by flanges, but the flanges have relatively poor sealing performance, are prone to leakage, and are easily exposed to air for extended periods, causing bolts to rust and making disassembly difficult, thus affecting the effectiveness of later maintenance of the gas pipeline connection.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection structure for gas pipeline installation, comprising two connecting pipes (1), characterized in that: The surface of the connecting pipe (1) is provided with two protective frames (2), and a flange (9) is fixedly connected to the opposite side of the two connecting pipes (1). The flange (9) is provided with six bolts (7), and a protective mechanism (4) and three auxiliary mechanisms (3) are provided on the opposite side of the two protective frames (2). The protective mechanism (4) includes a fixed arc plate (401), a movable arc plate (402), three mounting rods (403), three fixing frames (404), and two sealing arc plates (405). The surface of the fixed arc plate (401) is fixedly connected to the interior of the protective frame (2). The surface of the movable arc plate (402) is slidably connected to the interior of the protective frame (2). The surface of the mounting rod (403) is fixedly connected to the left side of the movable arc plate (402). The interior of the fixing frame (404) is threadedly connected to the surface of the mounting rod (403). The right side of the sealing arc plate (405) is fixedly connected to the left side of the movable arc plate (402). The surface of the sealing arc plate (405) is in close contact with the interior of the protective frame (2).

2. The connection structure for gas pipeline installation according to claim 1, characterized in that: The auxiliary mechanism (3) includes three waterproof plates (301) fixedly connected inside the movable arc plate (402). A waterproof sleeve (302) is fixedly connected to the right side of the waterproof plate (301), and the inside of the waterproof sleeve (302) is in contact with the surface of the bolt (7).

3. The connection structure for gas pipeline installation according to claim 1, characterized in that: A connecting sleeve (303) is fixedly connected to the right side of the flange (9), and a first sealing gasket (304) is tightly connected inside the connecting sleeve (303).

4. The connection structure for gas pipeline installation according to claim 3, characterized in that: A support sleeve (305) is fixedly connected to the surface of the first sealing gasket (304), and the surface of the support sleeve (305) is fixedly connected to the interior of the fixed arc plate (401).

5. A connection structure for gas pipeline installation according to claim 2, characterized in that: The waterproof sleeve (302) is internally fixedly connected to a second sealing gasket (8), and the right side of the second sealing gasket (8) is in close contact with the left side of the flange (9).

6. The connection structure for gas pipeline installation according to claim 1, characterized in that: The surface of the mounting rod (403) is in contact with the interior of the flange (9), and the two moving arc plates (402) are in close contact on opposite sides.

7. A connection structure for gas pipeline installation according to claim 1, characterized in that: Both the interior of the movable arc plate (402) and the interior of the fixed arc plate (401) are fixedly connected with sealing arc gaskets (5), and the interior of the sealing arc gaskets (5) is in close contact with the surface of the connecting pipe (1).

8. A connection structure for gas pipeline installation according to claim 1, characterized in that: The surface of the connecting pipe (1) is provided with four limiting pads (6), and the front and rear sides of the limiting pads (6) are in close contact with the opposite side of the two protective frames (2).

Images