Safety protection device for gas pipeline

Abstract

The utility model discloses a gas pipeline safety protection device, and relates to the technical field of gas pipeline protection. The safety protection device for the gas pipeline comprises two matched protection sleeve shells connected to the two sides of the flange connecting position of the gas pipeline in a sleeving mode, the protection sleeve shells are used for protecting the flange position of the gas pipeline, and clamping mechanisms used for clamping and reinforcing a flange plate of the gas pipeline are arranged in the two protection sleeve shells correspondingly; and the fixing mechanism is arranged between the two protective sleeve shells and is used for fixing the two protective sleeve shells. The flange joint of the gas pipeline is sealed and protected, the joint is prevented from being eroded, the risk of gas leakage is reduced, and the problems that in the using process of the natural gas pipeline, the joint of the flange is likely to be affected by rainwater, dust and other impurities to be rusted, sealing of the joint is affected, and the service life of the natural gas pipeline is prolonged are solved. And gas leakage is caused, so that potential safety hazards are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline protection, in particular to a gas pipeline safety protection device. Background Art

[0002] Gas pipelines are tubular facilities used to transport various types of gas, such as natural gas, coal gas, and liquefied petroleum gas. In the energy supply system, gas pipelines undertake the important mission of transporting gas from the gas source to thousands of households and various industrial users. As an efficient and clean energy source, gas has been widely used in people's daily lives and industrial production. However, gas has the characteristics of being flammable, explosive, and toxic. If there are safety problems in the operation of gas pipelines, it will bring extremely serious consequences.

[0003] At present, many gas pipelines are exposed to the outside world, and gas pipelines are generally connected by flanges. However, during the use of natural gas pipelines, the joints of the flanges may be affected by rain, dust and other impurities and rust, which will affect the sealing of the joints and cause gas leakage, bringing safety hazards. Utility Model Content

[0004] The utility model provides a gas pipeline safety protection device, which has the advantages of sealing and protecting the gas pipeline flange connection by adding a protection structure, avoiding erosion of the connection and reducing the risk of gas leakage, so as to solve the problem that during the use of the natural gas pipeline, the flange connection may be affected by impurities such as rainwater and dust and rust, thereby affecting the sealing of the connection, causing gas leakage and bringing safety hazards.

[0005] In order to achieve the purpose of sealing and protecting the flange connection of the gas pipeline by adding a protective structure, avoiding erosion of the connection and reducing the risk of gas leakage, the utility model provides the following technical solutions: A gas pipeline safety protection device, comprising: two matching protective sleeves sleeved on both sides of the flange connection of the gas pipeline, the protective sleeves are used to protect the flange of the gas pipeline, and both of the two protective sleeves are provided with a clamping mechanism for clamping and reinforcing the flange of the gas pipeline; a fixing mechanism arranged between the two protective sleeves, the fixing mechanism is used to fix the two protective sleeves, the fixing mechanism is connected to the clamping mechanism, and is used to fix the two clamping mechanisms; clamping components are arranged on both sides of the outside of the two protective sleeves, and the clamping components are used to pre-fix the two protective sleeves.

[0006] Preferably, the clamping mechanism includes two bidirectional screws, an upper clamping plate and a lower clamping plate, the two bidirectional screws are respectively arranged inside two protective sleeves, the two ends of the bidirectional screw are respectively opened as left-handed and right-handed threads, one end of the bidirectional screw is connected to a bearing on one side of the inner side of the protective sleeve, the other end of the bidirectional screw passes through the protective sleeve, and the other end of the bidirectional screw is provided with a locking component, and the locking component is used to lock the bidirectional screw; the upper clamping plate and the lower clamping plate are respectively arranged in the two protective sleeves and connected to the inner side walls of the two protective sleeves, the two upper clamping plates are respectively sleeved on the two ends of one of the bidirectional screws, and the two lower clamping plates are respectively sleeved on the two ends of the other bidirectional screw, and when the two bidirectional screws rotate, they respectively drive the two upper clamping plates and the two lower clamping plates to move away from or towards each other, so as to clamp the flange of the gas pipeline.

[0007] Preferably, the locking component includes a cam portion, a toggle plate and a hinge seat, the hinge seat is fixedly arranged at the other end of the bidirectional screw, the toggle plate and the cam portion are integrally formed, the cam portion is sleeved on the surface of the hinge seat through a hinge shaft, and the cam portion is tightly fitted to the surface of the protective sleeve shell.

[0008] Preferably, a support plate is fixedly provided on the surface of the protective shell, and the support plate is arranged around the toggle plate with the hinge seat as the center point. A chamfer is provided on one side of the support plate close to the hinge seat, and the support plate is used to support a prying tool to pry the toggle plate.

[0009] Preferably, the fixing mechanism includes a driving rod, a connecting rod, an insertion rod and a fixing frame, one end of the driving rod is fixedly connected to the surface of the upper clamping plate through a bearing, the other end of the driving rod passes through a protective shell, one end of the connecting rod is fixedly connected to one end of the driving rod, and the other end of the connecting rod is fixedly connected to the insertion rod; the insertion rod is arranged in an arc shape with the driving rod as the center point, the fixing frame is fixedly arranged on the surface of the lower clamping plate, and the driving rod is used to drive the insertion rod to rotate and adapt to the fixing frame for insertion.

[0010] Preferably, the driving rod includes a sleeve, a telescopic rod, a fixing ring and a nut. The telescopic rod is arranged in a cross shape. The sleeve is adapted to be sleeved on the surface of the telescopic rod. One end of the telescopic rod is connected to the upper clamping plate through a bearing. The sleeve passes through the protective sleeve shell. The fixing ring is fixedly sleeved on the surface of the sleeve. The fixing ring is connected to the inner wall of the protective sleeve shell. The nut is threadedly sleeved on the end of the sleeve away from the telescopic rod. The nut is tightly connected to the outer surface of the protective sleeve shell.

[0011] Preferably, the clamping component includes a protruding spring sheet and a plug-in frame, the protruding spring sheet is fixedly arranged on the surface of one of the protective shells, the plug-in frame is fixedly arranged on the surface of the other protective shell, the protruding spring sheet is plugged into the plug-in frame, and the protrusion at one end of the protruding spring sheet is clamped with the plug-in frame.

[0012] Compared with the prior art, the utility model provides a gas pipeline safety protection device, which has the following beneficial effects:

[0013] The gas pipeline safety protection device protects the flange connection of the gas pipeline by setting a protective sleeve. The two protective sleeves are respectively sleeved on both sides of the flange connection of the gas pipeline. The flange connection of the gas pipeline is sealed and protected by adding a protective structure to avoid erosion of the connection and reduce the risk of gas leakage. This solves the problem that during the use of the natural gas pipeline, the connection of the flange plate may be affected by impurities such as rainwater and dust and rust, thereby affecting the sealing of the connection, causing gas leakage and bringing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A magnified view of the structure at center;

[0016] Figure 3 For this utility model Figure 1 A magnified view of the structure at B in the middle;

[0017] Figure 4 This is an exploded view of the protective shell structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0019] Figure 6 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0020] In the figure: 1. protective shell; 2. bidirectional screw; 3. upper clamping plate; 4. lower clamping plate; 5. cam portion; 6. toggle plate; 7. hinge seat; 8. support plate; 9. drive rod; 10. connecting rod; 11. plug rod; 12. fixed frame; 13. sleeve; 14. telescopic rod; 15. fixing ring; 16. nut; 17. raised spring piece; 18. plug-in frame. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0022] Figure 1-Figure 6 It is the best embodiment of the utility model, and the following Figure 1-Figure 6 The utility model is further described.

[0023] The utility model discloses a gas pipeline safety protection device, comprising: two matching protective sleeves 1 sleeved on both sides of the flange connection of the gas pipeline, the protective sleeves 1 are used to protect the flange of the gas pipeline, and the two protective sleeves 1 are both provided with a clamping mechanism for clamping and reinforcing the flange of the gas pipeline; a fixing mechanism arranged between the two protective sleeves 1, the fixing mechanism is used to fix the two protective sleeves 1, the fixing mechanism is connected to the clamping mechanism, and is used to fix the two clamping mechanisms; clamping components are arranged on both sides of the outside of the two protective sleeves 1, and the clamping components are used to pre-fix the two protective sleeves 1.

[0024] Specifically, the clamping mechanism includes two bidirectional screws 2, an upper clamping plate 3 and a lower clamping plate 4. The two bidirectional screws 2 are respectively arranged inside the two protective sleeves 1. The two ends of the bidirectional screws 2 are respectively opened as left-handed and right-handed threads. One end of the bidirectional screw 2 is connected to a bearing on one side of the inner side of the protective sleeve 1, and the other end of the bidirectional screw 2 passes through the protective sleeve 1. The other end of the bidirectional screw 2 is provided with a locking component, which is used to lock the bidirectional screw 2; the upper clamping plate 3 and the lower clamping plate 4 are respectively arranged in the two protective sleeves 1 and connected to the inner walls of the two protective sleeves 1. The two upper clamping plates 3 are respectively sleeved on the two ends of one of the bidirectional screws 2, and the two lower clamping plates 4 are respectively sleeved on the two ends of the other bidirectional screw 2. When the two bidirectional screws 2 rotate, they respectively drive the two upper clamping plates 3 and the two lower clamping plates 4 to move away from or towards each other, so as to clamp the flange of the gas pipeline.

[0025] In this embodiment, the bidirectional screw 2 is rotated, and under the action of the left-handed thread and the right-handed thread of the bidirectional screw 2, the two upper clamps 3 threadedly connected to it are driven to move toward each other, so that the upper clamps 3 clamp the flange, and the above operation is repeated to clamp the flange with the lower clamp 4, thereby reinforcing the flange and preventing the flange connection from loosening, thereby further preventing gas leakage.

[0026] Specifically, the locking component includes a cam portion 5, a toggle plate 6 and a hinge seat 7. The hinge seat 7 is fixedly arranged at the other end of the bidirectional screw 2. The toggle plate 6 and the cam portion 5 are integrally formed. The cam portion 5 is connected to the surface of the hinge seat 7 through a hinge shaft. The cam portion 5 fits tightly with the surface of the protective sleeve shell 1.

[0027] In this embodiment, after the flange is clamped, the toggle plate 6 is pressed to drive the cam portion 5 to rotate around the hinge seat 7, so that the cam portion 5 squeezes the surface of the protective sleeve shell 1 and then fits tightly with the surface of the protective sleeve shell 1, thereby locking and fixing the bidirectional screw 2 to prevent the bidirectional screw 2 from rotating accidentally. When unlocking is required, the toggle plate 6 only needs to be pulled to drive the cam portion 5 to reverse, thereby disengaging the cam portion 5 from the protective sleeve shell 1, thereby unlocking the bidirectional screw 2.

[0028] Specifically, a support plate 8 is fixedly provided on the surface of the protective shell 1. The support plate 8 is arranged around the toggle plate 6 with the hinge seat 7 as the center point. A chamfer is provided on one side of the support plate 8 close to the hinge seat 7. The support plate 8 is used to support a prying tool to pry the toggle plate 6.

[0029] In this embodiment, by providing a support plate 8, when the cam portion 5 is tightly engaged and inconvenient to pull, a tool, such as a screwdriver, can be inserted into the bottom of the toggle plate 6, and the support plate 8 is used as a fulcrum to pry the toggle plate 6, thereby facilitating unlocking.

[0030] Specifically, the fixing mechanism includes a driving rod 9, a connecting rod 10, an insertion rod 11 and a fixing frame 12. One end of the driving rod 9 is fixedly connected to the surface of the upper clamping plate 3 through a bearing, and the other end of the driving rod 9 passes through the protective sleeve 1. One end of the connecting rod 10 is fixedly connected to one end of the driving rod 9, and the other end of the connecting rod 10 is fixedly connected to the insertion rod 11; the insertion rod 11 is set in an arc shape with the driving rod 9 as the center point, and the fixing frame 12 is fixedly set on the surface of the lower clamping plate 4. The driving rod 9 is used to drive the insertion rod 11 to rotate and adapt to the fixing frame 12 Plug-in; the driving rod 9 includes a sleeve 13, a telescopic rod 14, a fixing ring 15 and a nut 16. The telescopic rod 14 is arranged in a cross shape. The sleeve 13 is adapted to be fitted on the surface of the telescopic rod 14. One end of the telescopic rod 14 is connected to the upper clamping plate 3 through a bearing. The sleeve 13 passes through the protective sleeve 1. The fixing ring 15 is fixedly sleeved on the surface of the sleeve 13. The fixing ring 15 is connected to the inner wall of the protective sleeve 1. The nut 16 is threadedly sleeved on the end of the sleeve 13 away from the telescopic rod 14. The nut 16 is tightly connected to the outer surface of the protective sleeve 1.

[0031] In this embodiment, when the upper clamping plate 3 moves, it will drive the telescopic rod 14 on the surface to move, so that the telescopic rod 14 slides along the inner wall of the sleeve 13. After the upper clamping plate 3 and the lower clamping plate 4 clamp the flange, the nut 16 at one end of the sleeve 13 is screwed to unlock the sleeve 13, and then the sleeve 13 is rotated. Under the action of the cross shape, the telescopic rod 14 can drive the sleeve 13 to drive the telescopic rod 14 to rotate, so that the telescopic rod 14 drives the insertion rod 11 to rotate through the connecting rod 10, and the insertion rod 11 It will rotate around the center point of the telescopic rod 14, so that the telescopic rod 14 on the upper clamp plate 3 is adapted and plugged into the fixed frame 12 on the lower clamp plate 4, thereby fixing the two clamp plates to ensure that the two clamp plates are clamped in place, and can fix the two protective shells 1 to make the protective shell 1 more firmly installed, and then screw the nut 16 so that the nut 16 fits tightly with the protective shell 1 under the action of the fixing ring 15, thereby locking and fixing the sleeve 13 to prevent the insertion rod 11 from detaching from the fixed frame 12.

[0032] Specifically, the clamping component includes a protruding spring piece 17 and a plug-in frame 18. The protruding spring piece 17 is fixedly arranged on the surface of one of the protective shells 1, and the plug-in frame 18 is fixedly arranged on the surface of the other protective shell 1. The protruding spring piece 17 is plugged into the plug-in frame 18, and the protrusion at one end of the protruding spring piece 17 is clamped with the plug-in frame 18.

[0033] In this embodiment, when the two protective sleeves 1 are docked, the raised spring piece 17 is plugged into the plug-in frame 18, and the arc-shaped raised portion of the raised spring piece 17 squeezes the opening of the plug-in frame 18, so that the raised spring piece 17 is elastically deformed and bent. After the raised spring piece 17 enters the plug-in frame 18, the raised spring piece 17 is elastically reset, so that the raised portion of the raised spring piece 17 is engaged with the hole on the plug-in frame 18, thereby facilitating the pre-fixation of the two protective sleeves 1.

[0034] The working principle and use process of the utility model are as follows: when in use, when protecting the flange connection of the gas pipeline, the two protective sleeves 1 are respectively sleeved onto the two sides of the flange connection of the gas pipeline, and the two protective sleeves 1 are docked. When docking, the two protective sleeves 1 are pre-fixed by a clamping assembly, so as to facilitate subsequent operations; then the bidirectional screw 2 is unlocked by a locking component, and the bidirectional screw 2 is rotated by the locking component, and under the action of the left-handed and right-handed threads of the bidirectional screw 2, the two upper clamps 3 threadedly connected thereto are driven to move toward each other, so that the upper clamps 3 clamp the flange, and the above operation is repeated to clamp the flange with the lower clamp 4, so that the flange can be reinforced to prevent the flange connection from loosening, thereby further preventing gas leakage, and then the bidirectional screw 2 is locked by the locking component to prevent accidental rotation.

[0035] When the upper clamping plate 3 moves, it will drive the telescopic rod 14 on the surface to move, so that the telescopic rod 14 slides along the inner wall of the sleeve 13. After the upper clamping plate 3 and the lower clamping plate 4 clamp the flange, the nut 16 at one end of the sleeve 13 is screwed to unlock the sleeve 13, and then the sleeve 13 is rotated. Under the action of the cross shape, the telescopic rod 14 can drive the sleeve 13 to rotate, so that the telescopic rod 14 drives the plug rod 11 to rotate through the connecting rod 10, and the plug rod 11 will rotate around The center point of the telescopic rod 14 rotates so that the telescopic rod 14 on the upper clamp plate 3 is adapted and plugged into the fixed frame 12 on the lower clamp plate 4, thereby fixing the two clamp plates to ensure that the two clamp plates are clamped in place, and being able to fix the two protective shells 1 to make the protective shell 1 more firmly installed, and then tighten the nut 16 so that the nut 16 fits tightly with the protective shell 1 under the action of the fixing ring 15, thereby locking and fixing the sleeve 13 to prevent the insertion rod 11 from detaching from the fixed frame 12.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A gas pipeline safety protection device, characterized in that: include: Two matching protective sleeves (1) sleeved on both sides of the gas pipeline flange connection, the protective sleeves (1) are used to protect the flange of the gas pipeline, and the two protective sleeves (1) are both provided with a clamping mechanism for clamping and reinforcing the gas pipeline flange; A fixing mechanism is arranged between the two protective sleeves (1), the fixing mechanism is used to fix the two protective sleeves (1) to each other, the fixing mechanism is connected to the clamping mechanism, and is used to fix the two clamping mechanisms to each other; A clamping component is arranged on both sides of the outside of the two protective sleeves (1), and the clamping component is used to pre-fix the two protective sleeves (1).

2. A gas pipeline safety protection device according to claim 1, characterized in that: The clamping mechanism comprises two bidirectional screws (2), an upper clamping plate (3) and a lower clamping plate (4); the two bidirectional screws (2) are respectively arranged inside two protective sleeves (1); the two ends of the bidirectional screws (2) are respectively provided with left-handed and right-handed threads; one end of the bidirectional screws (2) is connected to a bearing on one side of the inner side of the protective sleeve (1); the other end of the bidirectional screws (2) passes through the protective sleeve (1); the other end of the bidirectional screws (2) is provided with a locking component, and the locking component is used to lock the bidirectional screws (2); The upper clamping plates (3) and the lower clamping plates (4) are respectively arranged in the two protective sleeves (1) and connected to the inner side walls of the two protective sleeves (1). The two upper clamping plates (3) are respectively sleeved on the two ends of one of the bidirectional screws (2), and the two lower clamping plates (4) are respectively sleeved on the two ends of the other bidirectional screw (2). When the two bidirectional screws (2) rotate, they respectively drive the two upper clamping plates (3) and the two lower clamping plates (4) to move away from or towards each other, so as to clamp the flange of the gas pipeline.

3. A gas pipeline safety protection device according to claim 2, characterized in that: The locking component comprises a cam portion (5), a toggle plate (6) and an articulated seat (7); the articulated seat (7) is fixedly arranged at the other end of the bidirectional screw (2); the toggle plate (6) and the cam portion (5) are integrally formed; the cam portion (5) is sleeved on the surface of the articulated seat (7) via an articulated shaft; and the cam portion (5) is tightly fitted to the surface of the protective sleeve (1).

4. A gas pipeline safety protection device according to claim 3, characterized in that: A support plate (8) is fixedly arranged on the surface of the protective shell (1); the support plate (8) is arranged around the toggle plate (6) with the hinge seat (7) as the center point; a chamfer is provided on one side of the support plate (8) close to the hinge seat (7); the support plate (8) is used to support a prying tool to pry the toggle plate (6).

5. A gas pipeline safety protection device according to claim 1, characterized in that: The fixing mechanism comprises a driving rod (9), a connecting rod (10), an inserting rod (11) and a fixing frame (12); one end of the driving rod (9) is fixedly connected to the surface of the upper clamping plate (3) via a bearing; the other end of the driving rod (9) passes through the protective sleeve (1); one end of the connecting rod (10) is fixedly connected to one end of the driving rod (9); and the other end of the connecting rod (10) is fixedly connected to the inserting rod (11); The insertion rod (11) is arranged in an arc shape with the driving rod (9) as the center point, the fixing frame (12) is fixedly arranged on the surface of the lower clamping plate (4), and the driving rod (9) is used to drive the insertion rod (11) to rotate and adapt to the fixing frame (12).

6. A gas pipeline safety protection device according to claim 5, characterized in that: The driving rod (9) comprises a sleeve (13), a telescopic rod (14), a fixing ring (15) and a nut (16); the telescopic rod (14) is arranged in a cross shape; the sleeve (13) is adaptively connected to the surface of the telescopic rod (14); one end of the telescopic rod (14) is connected to the upper clamping plate (3) via a bearing; the sleeve (13) passes through the protective sleeve (1); the fixing ring (15) is fixedly connected to the surface of the sleeve (13); the fixing ring (15) is connected to the inner wall of the protective sleeve (1); the nut (16) is threadedly connected to the end of the sleeve (13) away from the telescopic rod (14); and the nut (16) is tightly connected to the outer surface of the protective sleeve (1).

7. A gas pipeline safety protection device according to claim 1, characterized in that: The clamping component comprises a protruding spring sheet (17) and a plug-in frame (18); the protruding spring sheet (17) is fixedly arranged on the surface of one of the protective shells (1); the plug-in frame (18) is fixedly arranged on the surface of the other protective shell (1); the protruding spring sheet (17) is plugged into the plug-in frame (18); and a protruding portion at one end of the protruding spring sheet (17) is clamped with the plug-in frame (18).

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