Pipeline repair device

Abstract

The present invention discloses a pipeline repair device, including a plugging component and a locking mechanism, wherein the locking mechanism includes at least one locking unit, wherein the locking unit includes a locking band and two locking seats installed at intervals on the locking band, each of the locking seats is hinged with a locking rod, at least a portion of the locking rod is provided with an external thread, and the thread rotation directions of the locking rods of the two locking seats of the same locking band are opposite, and the locking unit also includes a locking sleeve, at least a portion of the locking sleeve is provided with an internal thread, and the locking sleeve cooperates with the two locking rods to tighten the locking band to the outer wall of the pipeline to be repaired and press the plugging component to the leakage position of the pipeline to be repaired. With this structure, the locking sleeve and the locking rod can be locked to tighten the locking band, and then the plugging component can be pressed to the leakage position to achieve rapid repair of the pipeline; due to the hinged arrangement of the locking rod, the external thread section of the locking rod can be easily arranged coaxially with the locking sleeve, thereby ensuring the reliability of locking.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline repair, and in particular to a pipeline repair device. Background Art

[0002] As an important component for transporting fluids such as fuel oil and gas, the integrity of the pipeline wall directly determines its reliability during use. However, due to the increasing frequency of human activities such as urban reconstruction and demolition, as well as the aging of the pipeline itself, pipeline leakage and failure caused by pipeline corrosion or external force damage occur frequently, seriously affecting the normal transportation of fluids.

[0003] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects is still a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The purpose of the present invention is to provide a pipeline repairing device which can repair a leaking pipeline.

[0005] To solve the above technical problems, the present invention provides a pipeline repair device, including a sealing component and a locking mechanism, the locking mechanism including at least one locking unit, the locking unit including a locking band and two locking seats installed at intervals on the locking band, each of the locking seats is hinged with a locking rod, the locking rod is at least partially provided with an external thread, and the thread rotation directions of the locking rods of the two locking seats of the same locking band are opposite, the locking unit also includes a locking sleeve, the locking sleeve is at least partially provided with an internal thread, and the locking sleeve cooperates with the two locking rods to tighten the locking band to the outer wall of the pipeline to be repaired and press the sealing component to the leakage position of the pipeline to be repaired.

[0006] By adopting this structure, the locking belt can be tightened to the outer wall of the pipe to be repaired through the locking of the locking sleeve and the locking rod, and then the sealing component can be pressed to the leakage position of the pipe to be repaired to achieve rapid repair of the pipe; at the same time, since the locking rod and the locking seat are hinged, the locking rod can be easily rotated during use so that the external threaded section of the locking rod is coaxially arranged with the locking sleeve, thereby ensuring the reliability of locking.

[0007] Optionally, the locking rod comprises a threaded rod section and an articulated rod section connected to each other. In a use state, the threaded rod section is coaxially arranged with the locking sleeve, and at least a part of the articulated rod section is arranged at an angle with the locking sleeve.

[0008] Optionally, the lock seat is fixed to the lock belt via a first locking member.

[0009] Optionally, the plugging component is provided with a pressure relief structure; and / or the plugging component can be bent and deformed by the locking band to adapt to the outer wall of the pipeline to be repaired.

[0010] Optionally, the plugging component includes a sealing gasket layer in contact with the pipeline to be repaired, and a honeycomb structure is provided on a side of the sealing gasket layer in contact with the pipeline to be repaired, and the honeycomb structure is the pressure relief structure.

[0011] Optionally, the sealing gasket layer is further provided with a groove extending along the axial direction of the pipe to be repaired.

[0012] Optionally, the plugging component further includes an outer plate layer, and the outer plate layer is connected to a side of the sealing gasket layer facing away from the pipeline to be repaired.

[0013] Optionally, the thickness of the blocking component at the positions where the two ends of the pipe to be repaired cooperate with the locking band is smaller than the thickness at other positions.

[0014] Optionally, the thickness of the sealing gasket layer at two end portions in the circumferential direction of the pipe to be repaired is smaller than the thickness at other positions.

[0015] Optionally, the side of the sealing component facing away from the pipe to be repaired has a limiting structure for limiting the position of the locking band; and / or, further comprises a second locking member, and the locking band is connected to the sealing component via the second locking member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a specific implementation of the pipeline repair device provided by the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of the connection between the middle lock belt, lock seat, lock rod and lock sleeve;

[0018] Figure 3 for Figure 1 A partial enlarged view of the connection between the middle locking belt and the blocking component;

[0019] Figure 4 A structural schematic diagram of another embodiment of a blocking component;

[0020] Figure 5 is a schematic diagram of the structure of the blocking component from another perspective;

[0021] Figure 6 It is a partial enlarged view of the connection between the locking belt, the plugging component and the pipeline to be repaired;

[0022] Figure 7 This is an installation structure diagram of the pipeline repair device provided by the present invention and the pipeline to be repaired;

[0023] Figure 8 for Figure 7 Schematic diagram of the structure from another perspective.

[0024] Figure 1-8 The reference numerals in the figures are described as follows:

[0025] 1 blocking component, 11 sealing cushion layer, 111 honeycomb structure, 112 slotting, 12 outer plate layer, 121 limiting ring;

[0026] 2 locking mechanism, 21 locking unit, 211 locking belt, 212 locking seat, 212a first locking member, 213 locking rod, 213a threaded rod section, 213b hinged rod section, 214 locking sleeve;

[0027] A pipeline to be repaired. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1-8 , Figure 1 This is a schematic structural diagram of a specific implementation of the pipeline repair device provided by the present invention. Figure 2 for Figure 1 A partial enlarged view of the connection between the middle lock belt, lock seat, lock rod and lock sleeve. Figure 3 for Figure 1 A partial enlarged view of the connection between the middle lock belt and the blocking component. Figure 4 is a schematic structural diagram of another embodiment of a blocking component, Figure 5 It is a schematic diagram of the structure of the blocking component from another perspective. Figure 6 This is a partial enlarged view of the connection between the lock belt, the plugging component and the pipe to be repaired. Figure 7 This is a diagram of the installation structure of the pipeline repair device provided by the present invention and the pipeline to be repaired. Figure 8 for Figure 7 Schematic diagram of the structure from another perspective.

[0030] like Figure 1 , Figure 2 As shown, the present invention provides a pipeline repair device, including a plugging component 1 and a locking mechanism 2, the locking mechanism 2 includes at least one locking unit 21, the locking unit 21 includes a locking belt 211 and two locking seats 212 installed at intervals on the locking belt 211, each locking seat 212 is hinged with a locking rod 213, at least a part of the locking rod 213 is provided with an external thread, and the thread rotation directions of the locking rods 213 of the two locking seats 212 of the same locking belt 211 are opposite, and the locking unit 21 also includes a locking sleeve 214, at least a part of the locking sleeve 214 is provided with an internal thread.

[0031] Combination Figure 7 , Figure 8When the leaking position of the pipeline A to be repaired needs to be repaired, the plugging component 1 can be placed at the leaking position first, and then the locking belt 211 can be wrapped around the outer wall of the pipeline A to be repaired. The specific number of wrappings is not limited here, and can be one circle (the scheme in the attached figure) or multiple circles. After that, the two locking seats 212 on the same locking belt 211 can be placed opposite to each other, and the locking sleeve 214 can be used to lock the locking rods 213 installed on the two locking seats 212. Since the threads of the two locking rods 213 are rotated in opposite directions, the locking sleeve 214 can be directly rotated to simultaneously lock the two locking rods 213, so as to gradually tighten the locking belt 211 and press the plugging component 1. In this way, the plugging component 1 can block the leaking position, thereby realizing pipeline repair.

[0032] With this structure, since the locking rod 213 and the locking seat 212 are hingedly matched, the locking rod 213 can be easily rotated during use so that the external thread section of the locking rod 213 is coaxially arranged with the locking sleeve 214, thereby ensuring the reliability of locking.

[0033] Moreover, the above pipeline repair device has the advantages of simple structure, light weight, low operation difficulty, etc., and can realize pipeline repair conveniently and quickly.

[0034] It should be pointed out that the embodiment of the present invention does not limit the number of the above-mentioned locking units 21. During specific implementation, those skilled in the art can set them according to actual conditions such as the axial size of the locking belt 211 and the size of the sealing component 1, as long as they can ensure reliable compression of the sealing component 1 on the outer wall of the pipe A to be repaired.

[0035] In order to be threadedly connected with the two locking rods 213, the locking sleeve 214 may be provided with two coaxial connection holes, which may be connected or disconnected, and the connection holes may be partially provided with internal threads or fully provided with internal threads, which may be determined in accordance with actual conditions. It should be noted that since the thread rotation directions of the two locking rods 213 are opposite, the rotation directions of the internal threads in the two connection holes must also be opposite.

[0036] Please continue to refer to Figure 2 The locking rod 213 may include a threaded rod segment 213a and an articulated rod segment 213b connected to each other. The articulated rod segment 213b is used to be articulated with the locking seat 212, and the threaded rod segment 213a is used to be threadedly matched with the locking sleeve 214. The length ratio between the two and the articulated structure of the articulated rod segment 213b and the locking seat 212 are not limited here.

[0037] The axis of the locking rod 213 can be a straight line segment, or a combination of multiple non-collinear straight line segments, or a combination of a straight line segment and a curved line segment. Specifically in the embodiment of the present invention, the latter solution can be adopted. In the use state, the threaded rod segment 213a and the locking sleeve 214 can be coaxially arranged to ensure a reliable connection between the two. At least a part of the hinged rod segment 213b can be arranged at an angle to the locking sleeve 214. In this way, the distance between the locking sleeve 214 and the outer wall of the pipeline A to be repaired can be increased. On the one hand, interference between the locking sleeve 214 and the pipeline A to be repaired can be prevented. On the other hand, it is also more conducive to ensuring the coaxial locking of the threaded rod segment 213a and the locking sleeve 214.

[0038] The locking belt 211 and the locking seat 212 can be fixed in various ways, such as snap connection, bonding, etc. In an embodiment of the present invention, the locking seat 212 and the locking belt 211 can be fixedly connected by a first locking member 212a. The first locking member 212a can specifically be a screw, a rivet, etc., which can ensure a reliable connection between the locking seat 212 and the locking belt 211, so as to avoid distortion, misalignment, etc. of the locking belt 211 at the locking seat 212 to a large extent.

[0039] The plugging component 1 can be a component that is bent and deformed by the locking belt 211 to match the outer wall of the pipe A to be repaired, thereby more easily ensuring reliable plugging of the leaking position. In fact, the plugging component 1 can also be a component that is not bent by the locking belt 211, as long as it can reliably plug the leaking position.

[0040] The plugging component 1 may be provided with a pressure relief structure to reduce the pressure of the high-pressure fluid leaking from the leaking position of the pipeline A to be repaired, thereby ensuring that the plugging component 1 can quickly and efficiently plug the leaking position. Here, the embodiment of the present invention does not limit the specific structural form of the pressure relief structure, as long as the corresponding pressure relief effect can be achieved.

[0041] The plugging component 1 may include a sealing gasket layer 11 in contact with the pipeline A to be repaired. The sealing gasket layer 11 may be made of a flexible material such as rubber, so as to compress and seal the leaking position of the pipeline A to be repaired.

[0042] In one approach, if Figure 3 As shown, the pressure relief structure may be a honeycomb structure 111 arranged on the side of the sealing pad layer 11 that contacts the pipe A to be repaired. The honeycomb structure 111 may include a plurality of chambers, each of which may accommodate high-pressure fluid leaking from the pipe A to be repaired to achieve drainage and pressure relief.

[0043] In another scheme, if Figure 4 , Figure 5As shown, the pressure relief structure can also be a groove 112 arranged on the sealing gasket layer 11 and extending along the axial direction of the pipe A to be repaired. The shape of the groove 112 can be U-shaped or V-shaped, etc. This form of groove 112 can also accommodate leaked high-pressure fluid, thereby playing a role in drainage and pressure relief.

[0044] In addition, when the plugging component 1 is plugging the outer wall of the pipeline A to be repaired, it will bend under pressure, which will lead to material stacking, excessive stress, inability to bend, or inability to fit well with the outer wall of the pipeline A to be repaired, etc. inside the plugging component 1. These problems are particularly prominent in the middle area of ​​the plugging component 1 along the circumference of the pipeline A to be repaired. The above-mentioned groove 112 can well avoid the above-mentioned problems, which can eliminate part of the material of the plugging component 1, thereby reducing or eliminating the internal stress of the plugging component 1 when it is bent and deformed by the locking band 211, thereby improving the smoothness of the bending deformation of the plugging component 1 and the tightness of the plugging component 1 and the outer wall of the pipeline A to be repaired.

[0045] The number of the above-mentioned slots 112 can be one or more, which can be determined based on actual conditions.

[0046] The plugging component 1 may further include an outer plate layer 12, which may be connected to a side of the sealing gasket layer 11 away from the pipe A to be repaired, and is used to interact with the locking tape 211. The outer plate layer 12 may be a metal plate that can be bent and deformed, and may be fixedly connected to the sealing gasket layer 11 by bonding or other methods.

[0047] The side of the plugging component 1 away from the pipeline A to be repaired may have a limiting structure for limiting the position of the locking belt 211. The limiting structure may be a limiting groove, a limiting hole, etc., or a limiting ring 121 (such as Figure 5 As shown), limit blocks, etc.

[0048] Furthermore, a second locking member (not shown in the figure) may be included, which may be a locking screw, a rivet, etc., for fixing the locking belt 211 and the blocking member 1, so as to better constrain the relative position of the locking belt 211 and the blocking member 1. The second locking member may be installed on the aforementioned limiting ring 121, or may be installed at other positions.

[0049] Combination Figure 6, the thickness of the positions where the two circumferential ends of the plugging component 1 cooperate with the lock band 211 can be smaller than the thickness at other positions, so that the angle α between the lock band 211 and the outer wall of the pipeline A to be repaired caused by the support of the plugging component 1 can be smaller, so that the force on the plugging component 1 in the circumferential direction can be more uniform, thereby effectively improving the compression effect of the lock band 211 on the plugging component 1. There are many ways to produce the above structure, for example: setting guide grooves at the two circumferential ends of the plugging component 1 (outer plate layer 12) away from the pipeline A to be repaired; setting the thickness of the outer plate layer 12 and / or the sealing gasket layer 11 at the two circumferential ends to be smaller than the thickness at other positions, etc.

[0050] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pipeline repair device, characterized in that: The invention comprises a plugging component (1) and a locking mechanism (2), wherein the locking mechanism (2) comprises at least one locking unit (21), wherein the locking unit (21) comprises a locking band (211) and two locking seats (212) installed at intervals on the locking band (211), wherein each of the locking seats (212) is hingedly connected with a locking rod (213), wherein at least a portion of the locking rod (213) is provided with an external thread, and the thread rotation directions of the locking rods (213) of the two locking seats (212) of the same locking band (211) are opposite, and the locking unit (21) further comprises a locking sleeve (214), wherein at least a portion of the locking sleeve (214) is provided with an internal thread, and the locking sleeve (214) cooperates with the two locking rods (213) to tighten the locking band (211) to the outer wall of the pipeline (A) to be repaired and press the plugging component (1) to the leakage position of the pipeline (A) to be repaired; The blocking component (1) is provided with a pressure relief structure; and / or, The plugging component (1) can be bent and deformed by the locking band (211) so as to be compatible with the outer wall of the pipeline (A) to be repaired; the plugging component (1) comprises a sealing gasket layer (11) in contact with the pipeline (A) to be repaired, and a honeycomb structure (111) is provided on a side of the sealing gasket layer (11) in contact with the pipeline (A) to be repaired, and the honeycomb structure (111) is the pressure relief structure; The side of the blocking component (1) facing away from the pipeline (A) to be repaired has a limiting structure for limiting the position of the locking band (211); and / or, It also comprises a second locking member, and the locking belt (211) is connected to the blocking component (1) via the second locking member.

2. The pipeline repair device according to claim 1, characterized in that: The locking rod (213) comprises a threaded rod section (213a) and an articulated rod section (213b) connected to each other. In a use state, the threaded rod section (213a) is coaxially arranged with the locking sleeve (214), and at least a part of the articulated rod section (213b) is arranged at an angle with the locking sleeve (214).

3. The pipeline repair device according to claim 1, characterized in that: The lock seat (212) is fixed to the lock belt (211) via a first locking member (212a).

4. The pipeline repair device according to claim 1, characterized in that: The sealing gasket layer (11) is also provided with a groove (112) extending along the axial direction of the pipe (A) to be repaired.

5. The pipeline repair device according to claim 4, characterized in that: The plugging component (1) further comprises an outer plate layer (12), wherein the outer plate layer (12) is connected to a side of the sealing gasket layer (11) facing away from the pipeline (A) to be repaired.

6. The pipeline repair device according to claim 4, characterized in that: The thickness of the blocking component (1) at the positions where the two ends of the pipe (A) to be repaired cooperate with the locking band (211) is smaller than the thickness at other positions.

7. The pipeline repair device according to claim 6, characterized in that: The thickness of the sealing pad layer (11) at two end portions in the circumferential direction of the pipeline (A) to be repaired is smaller than the thickness at other locations.

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