Insulation joint with under-pressure leaking stoppage sealing device

Abstract

The utility model discloses an insulating joint with an under-pressure leaking stoppage sealing device, and relates to the technical field of insulating joints. The insulating joint with the pressurized leaking stoppage sealing device comprises a joint main body, a first sealing sleeve and a second sealing sleeve are arranged on the joint main body, the first sealing sleeve and the second sealing sleeve are both in a half ring shape, and cavities are formed in the first sealing sleeve and the second sealing sleeve. The first sealing sleeve and the second sealing sleeve wrap the leakage position of the connector body. A first connecting lug and a second connecting lug which are integrally formed are arranged at the two ends of the first sealing sleeve and the two ends of the second sealing sleeve. According to the insulating joint with the under-pressure leaking stoppage sealing device, the rubber pad, the wrapping sealing pad body and the sealing air bag have good deformation capacity; therefore, the non-pipeline-shaped part of the joint main body can be effectively coated and sealed, the functionality of the equipment is improved, meanwhile, the plugging mechanism can be quickly disassembled and assembled through the disassembling and assembling mechanism, and normal maintenance required by the insulation joint is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating joints, in particular to an insulating joint with a pressure-sealing device for plugging leaks. Background Art

[0002] The natural gas steel pipeline of the gas storage reservoir has high pressure, and the operating pressure is 6-28MPa. The insulating joint is an indispensable and important pressure component in the cathodic protection system of the natural gas steel pipeline of the gas storage reservoir, and is widely used in the cathodic protection system of the steel pipeline;

[0003] The Chinese patent application number CN218863593U discloses an insulating joint with a pressure plugging and sealing device. The leakage sealing device has the functions of not requiring fire, electricity, or production suspension, and does not affect the normal operation of the pipeline. A new sealing structure is quickly established at the leakage part of the insulating joint to avoid major economic losses caused by production suspension. At the same time, the device also plays a good role in reinforcing and protecting the corroded leakage part, prolonging the service life, and creating more economic benefits for the enterprise.

[0004] However, the leak-proof sealing device seals the leak by fitting the clamp to the joint and injecting colloid into the joint. Although this method can achieve a sealing effect, once sealed, the clamp and the insulating joint will be completely bonded due to the viscosity of the glue, so it is impossible to remove them again. At this time, if the insulating joint needs to be repaired or maintained, it will be affected by the clamp and construction will be impossible. In view of this, an insulating joint with a pressurized leak-proof sealing device is proposed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an insulating joint with a pressure-sealing device for plugging leaks under pressure, which can solve the problem that the clamp and the insulating joint are completely bonded due to the viscosity of the glue and cannot be removed again. At this time, if the insulating joint is to be repaired or maintained, it will be affected by the clamp and the construction cannot be carried out.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulating joint with a pressure plugging and sealing device, comprising a joint body, on which a first sealing sleeve and a second sealing sleeve are arranged, the first sealing sleeve and the second sealing sleeve are both in the shape of a half-circle ring and have a cavity arranged inside, and the first sealing sleeve and the second sealing sleeve are covered at the leaking part of the joint body;

[0007] Both ends of the first sealing sleeve and the second sealing sleeve are provided with an integrally formed first connecting ear and a second connecting ear;

[0008] A sealing mechanism is arranged inside the cavities of the first sealing sleeve and the second sealing sleeve, and the sealing mechanism is used to seal the leakage of the joint body;

[0009] The first connecting ear and the second connecting ear are provided with a disassembly and assembly mechanism which can enable the first sealing sleeve and the second sealing sleeve to be quickly assembled.

[0010] Preferably, the sealing mechanism comprises sealing airbags fixedly connected to the inside of the first sealing sleeve and the second sealing sleeve respectively, and a rubber pad is fixedly connected to the other side of the sealing airbag;

[0011] A covering sealing pad body is fixedly connected to the side of the rubber pad away from the sealing airbag. After the sealing airbag is expanded, the covering sealing pad body directly fits the surface of the joint body, thereby covering the leakage and achieving a sealing effect.

[0012] Preferably, the first sealing sleeve and the second sealing sleeve are both provided with a gas delivery pipe for delivering gas to the sealed airbag;

[0013] The gas delivery pipe is provided with a sealing valve for sealing the gas delivery pipe.

[0014] Preferably, the disassembly and assembly mechanism comprises a connection clamping plate fixedly connected to a side of the first connection ear close to the second connection ear;

[0015] A connection slot that is adapted to the connection card plate is provided on a side of the second connection ear close to the first connection ear;

[0016] An external force driving rod is rotatably connected to the second connecting ear, the external force driving rod extends to the inside of the connecting slot, and an elliptical limiting clamping plate is fixedly connected to the external force driving rod;

[0017] The initial state of the limit card plate is the horizontal state.

[0018] Preferably, the connecting card plate is concave-shaped, and two connecting card blocks are slidably connected inside the connecting card plate. The connecting card blocks can extend out of the connecting card plate, and a fixing groove that matches the connecting card blocks is provided on the inner wall of the connecting card slot;

[0019] The opposite ends of the two connecting blocks are inclined surfaces.

[0020] Preferably, the two connecting blocks are sleeved with a return spring, and the two ends of the return spring are respectively fixedly connected to the surface of the connecting block and the inner wall of the connecting card plate;

[0021] Arc grooves are provided on opposite sides of the two connecting blocks.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) The insulating joint with a pressure-sealed leak-proof sealing device only needs to install the first sealing sleeve and the second sealing sleeve at the leakage position of the joint body through the disassembly and assembly mechanism. At this time, the gas supply pipe is connected with the external gas supply device, so that gas is transported to the inside of the sealing airbag, and then the sealing airbag is expanded due to the intervention of the gas, so that the rubber pad and the coated sealing pad body are coated on the surface of the joint body, and then the leakage is sealed, thereby achieving a leak-proof effect. At the same time, the rubber pad, the coated sealing pad body and the sealing airbag have good deformation ability, so they can effectively coat and seal the non-pipe-shaped parts of the joint body, thereby improving the functionality of the device. At the same time, the sealing mechanism can be quickly disassembled and assembled through the disassembly and assembly mechanism, thereby ensuring the normal maintenance of the insulating joint.

[0024] (2) The insulating joint with the pressure-sealing device has an arc-shaped groove, so when the limiting clamp is in a vertical state, its two ends can be inserted into the inside of the arc-shaped groove, thereby achieving the effect of limiting and fixing it, making it difficult to rotate at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0026] Figure 1 This is a structural schematic diagram of an insulating joint with a pressure-sealed leak-stopping device according to the utility model;

[0027] Figure 2 This is a schematic diagram of the interior of the first sealing sleeve of the utility model;

[0028] Figure 3 This is a schematic diagram of the separation of the first connecting ear and the second connecting ear of the utility model;

[0029] Figure 4 For this utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0030] Figure 5 This is a schematic diagram of the interior of the connecting card board of the utility model.

[0031] Figure numerals: 1. joint body; 2. first sealing sleeve; 3. second sealing sleeve; 4. first connecting ear; 5. second connecting ear; 6. external force driving rod; 7. gas delivery pipe; 8. sealing valve; 9. covering sealing pad body; 10. rubber pad; 11. sealing airbag; 12. connecting block; 13. connecting slot; 14. fixing slot; 15. limiting clamp; 16. connecting block; 17. arc groove; 18. reset spring. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] See also Figure 1-5 The utility model provides a technical solution: an insulating joint with a pressure-sealing device, comprising a joint body 1, on which a first sealing sleeve 2 and a second sealing sleeve 3 are arranged;

[0037] The first sealing sleeve 2 and the second sealing sleeve 3 are both in the shape of a half-circle and have a cavity inside. The first sealing sleeve 2 and the second sealing sleeve 3 are covered at the leakage part of the joint body 1;

[0038] Wherein, both ends of the first sealing sleeve 2 and the second sealing sleeve 3 are provided with an integrally formed first connecting ear 4 and a second connecting ear 5;

[0039] A sealing mechanism is provided inside the cavities of the first sealing sleeve 2 and the second sealing sleeve 3, and the sealing mechanism is used to seal the leakage of the joint body 1;

[0040] The first connecting ear 4 and the second connecting ear 5 are provided with a disassembly and assembly mechanism that can enable the first sealing sleeve 2 and the second sealing sleeve 3 to be quickly assembled;

[0041] Furthermore, the sealing mechanism includes a sealing airbag 11 fixedly connected to the inside of the first sealing sleeve 2 and the second sealing sleeve 3 respectively, and a rubber pad 10 is fixedly connected to the other side of the sealing airbag 11;

[0042] The rubber pad 10 is fixedly connected with a covering sealing pad body 9 on one side away from the sealing airbag 11. The covering sealing pad body 9 directly fits the surface of the joint body 1 after the sealing airbag 11 is expanded, thereby covering the leaking part and achieving a sealing effect.

[0043] Wherein, the coated sealing pad body 9 is made of nano-particle material with good elongation performance;

[0044] The first sealing sleeve 2 and the second sealing sleeve 3 are both provided with a gas delivery pipe 7 for delivering gas to the sealing airbag 11;

[0045] Wherein, a sealing valve 8 is provided on the gas delivery pipe 7 for sealing the gas delivery pipe 7;

[0046] When the insulating joint leaks, it is only necessary to install the first sealing sleeve 2 and the second sealing sleeve 3 at the leakage position of the joint body 1 through the disassembly and assembly mechanism. At this time, the gas delivery pipe 7 is interconnected with the external gas supply equipment, so that gas is delivered to the inside of the sealing airbag 11, and then the sealing airbag 11 is expanded due to the intervention of the gas, so that the rubber pad 10 and the coated sealing pad body 9 are coated on the surface of the joint body 1, and then the leakage is sealed, thereby achieving a leak-proof effect. At the same time, the rubber pad 10, the coated sealing pad body 9 and the sealing airbag 11 have good deformation ability, so the non-pipe-shaped part of the joint body 1 can be effectively coated and sealed, thereby improving the functionality of the device.

[0047] Furthermore, the disassembly and assembly mechanism includes a connection clamping plate 12 fixedly connected to a side of the first connection ear 4 close to the second connection ear 5;

[0048] A connection slot 13 that matches the connection card plate 12 is formed on a side of the second connection ear 5 close to the first connection ear 4;

[0049] The second connecting ear 5 is rotatably connected to an external force driving rod 6, which extends to the inside of the connecting slot 13, and an elliptical limiting clamping plate 15 is fixedly connected to the external force driving rod 6;

[0050] Among them, the initial state of the limit clamping plate 15 is a horizontal state;

[0051] The connecting card plate 12 is concave in shape, and two connecting card blocks 16 are slidably connected inside the connecting card plate 12. The connecting card blocks 16 can extend out of the connecting card plate 12, and a fixing groove 14 that is adapted to the connecting card blocks 16 is provided on the inner wall of the connecting card slot 13;

[0052] Wherein, the opposite ends of the two connecting blocks 16 are inclined surfaces;

[0053] Among them, the two connecting blocks 16 are sleeved with a return spring 18, and the two ends of the return spring 18 are respectively fixedly connected to the surface of the connecting block 16 and the inner wall of the connecting card plate 12;

[0054] Wherein, arc-shaped grooves 17 are provided on opposite sides of the two connecting blocks 16;

[0055] When the first sealing sleeve 2 and the second sealing sleeve 3 are fixed by the first connecting ear 4 and the second connecting ear 5, it is only necessary to insert the connecting card plate 12 into the interior of the connecting card groove 13. At this time, the limiting card plate 15 enters into the interior of the connecting card plate 12 and is located between the two connecting card blocks 16. At this time, the external force driving rod 6 is rotated. The rotation of the external force driving rod 6 causes the limiting card plate 15 to gradually change from a horizontal state to a vertical state. During the rotation of the limiting card plate 15, it applies an outward thrust to the two connecting card blocks 16. Therefore, the connecting card blocks 16 extend from the interior of the connecting card plate 12 and are inserted into the interior of the connecting fixing groove 14. Therefore, the first sealing sleeve 2 and the second sealing sleeve 3 are fixed. When it is necessary to remove them, it is only necessary to rotate the external force driving rod 6 in the opposite direction.

[0056] By setting the reset spring 18, when the limit clamp plate 15 is reset, the elasticity of the reset spring 18 itself can reset the connecting clamp block 16, and then the connecting clamp block 16 is disengaged from the inside of the fixing groove 14, and the first sealing sleeve 2 and the second sealing sleeve 3 can be easily removed.

[0057] Working principle: When the insulating joint leaks, it is only necessary to install the first sealing sleeve 2 and the second sealing sleeve 3 at the leaking position of the joint body 1 through the disassembly and assembly mechanism. At this time, the gas delivery pipe 7 is connected with the external gas supply device, so that gas is delivered to the inside of the sealing airbag 11, and then the sealing airbag 11 is expanded by the intervention of the gas, so that the rubber pad 10 and the coated sealing pad body 9 are coated on the surface of the joint body 1, and then the leaking part is sealed, thereby achieving a leak-proof effect. At the same time, the rubber pad 10, the coated sealing pad body 9 and the sealing airbag 11 have good deformation ability, so the non-pipe-shaped part of the joint body 1 can be effectively coated and sealed, thereby improving the functionality of the device;

[0058] When fixing the first sealing sleeve 2 and the second sealing sleeve 3 by the first connecting ear 4 and the second connecting ear 5, it is only necessary to insert the connecting clamp 12 into the interior of the connecting clamp groove 13. At this time, the limiting clamp 15 enters into the interior of the connecting clamp 12 and is located between the two connecting clamp blocks 16. At this time, the external force driving rod 6 is rotated. The rotation of the external force driving rod 6 causes the limiting clamp 15 to gradually change from a horizontal state to a vertical state. During the rotation of the limiting clamp 15, it applies an outward thrust to the two connecting clamp blocks 16. Therefore, the connecting clamp blocks 16 extend from the interior of the connecting clamp 12 and are inserted into the interior of the connecting fixing groove 14, thereby completing the fixation of the first sealing sleeve 2 and the second sealing sleeve 3. When it is necessary to remove them, it is only necessary to rotate the external force driving rod 6 in the opposite direction.

[0059] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An insulating joint with a pressure-sealing device, comprising a joint body (1), characterized in that: The joint body (1) is provided with a first sealing sleeve (2) and a second sealing sleeve (3); the first sealing sleeve (2) and the second sealing sleeve (3) are both in the shape of a half-circle and have a cavity therein; the first sealing sleeve (2) and the second sealing sleeve (3) are covered at the leakage point of the joint body (1); Both ends of the first sealing sleeve (2) and the second sealing sleeve (3) are provided with an integrally formed first connecting ear (4) and a second connecting ear (5); Sealing mechanisms are provided inside the cavities of the first sealing sleeve (2) and the second sealing sleeve (3), and the sealing mechanisms are used to seal the leaking parts of the joint body (1); The first connecting ear (4) and the second connecting ear (5) are provided with a disassembly and assembly mechanism that enables the first sealing sleeve (2) and the second sealing sleeve (3) to be quickly assembled; The sealing mechanism comprises a sealing airbag (11) fixedly connected to the inside of the first sealing sleeve (2) and the second sealing sleeve (3), respectively, and a rubber pad (10) is fixedly connected to the other side of the sealing airbag (11); A covering sealing pad body (9) is fixedly connected to the side of the rubber pad (10) away from the sealing airbag (11). After the sealing airbag (11) is expanded, the covering sealing pad body (9) directly adheres to the surface of the joint body (1), thereby covering the leaking part and achieving a sealing effect. The disassembly and assembly mechanism comprises a connection clamping plate (12) fixedly connected to a side of the first connection ear (4) close to the second connection ear (5); A connection slot (13) adapted to the connection card plate (12) is provided on a side of the second connection ear (5) close to the first connection ear (4); An external force driving rod (6) is rotatably connected to the second connecting ear (5), the external force driving rod (6) extends to the inside of the connecting slot (13), and an elliptical limiting clamping plate (15) is fixedly connected to the external force driving rod (6); The initial state of the limiting clamping plate (15) is a horizontal state.

2. The insulating joint with a pressure-sealing device according to claim 1, characterized in that: The first sealing sleeve (2) and the second sealing sleeve (3) are both provided with a gas delivery pipe (7) for delivering gas to the sealing airbag (11); The gas delivery pipe (7) is provided with a sealing valve (8) for sealing the gas delivery pipe (7).

3. The insulating joint with a pressure-sealing device according to claim 1, characterized in that: The connecting card plate (12) is concave-shaped, and two connecting card blocks (16) are slidably connected inside the connecting card plate (12). The connecting card blocks (16) can extend outside the connecting card plate (12), and a fixing groove (14) adapted to the connecting card blocks (16) is provided on the inner wall of the connecting card slot (13); The opposite ends of the two connecting blocks (16) are inclined surfaces.

4. The insulating joint with a pressure-sealing device according to claim 3, characterized in that: The two connecting blocks (16) are both sleeved with a return spring (18), and the two ends of the return spring (18) are respectively fixedly connected to the surface of the connecting block (16) and the inner wall of the connecting card plate (12); An arc groove (17) is provided on opposite sides of the two connecting blocks (16).

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