Mechanical tube clamp

Abstract

This utility model belongs to the field of pipeline maintenance technology and discloses a mechanical pipe clamp, including a pipe clamp body, two deflection sections, a slip, a slip sleeve, a flange, and rubber. Tightening the connecting bolts applies pressure to the rubber through the flange, which then transmits the pressure to the slip sleeve. The fit between the first and second inclined surfaces forms a stable, integrated structure between the slip, slip sleeve, and pipe clamp body. Furthermore, the serrations on the inner wall of the slip tightly connect to the outer surface of the pipe, ensuring a reliable connection between the pipe clamp body and the pipe. This prevents the pipe clamp body from failing to seal at pipe breaks due to displacement along the pipe. The two deflection sections can also tightly connect two disconnected pipes, ensuring the normal transport of media within the pipeline. This effectively guarantees the continuous and stable operation of the pipeline, meeting the actual needs of production and daily life for media transport, and significantly improving the reliability and practicality of pipeline maintenance.

Description

Technical Field

[0001] This utility model relates to the field of pipeline maintenance technology, and in particular to a mechanical pipe clamp. Background Technology

[0002] In the field of pipeline maintenance, pipeline damage sealing technology has always been a research focus. Traditional pipeline sealing technologies, such as clamp sealing, steel belt tightening, quick binding, and injection sealing, have certain applicability in onshore pipeline leak sealing construction, but underwater construction is difficult and has limited adaptability to different leakage situations, especially in dealing with cracks caused by pipeline bending.

[0003] In recent years, mechanical-rubber composite structures have become a research hotspot. This structure surrounds metal and rubber components on the outside of a pipe, forming a ring-shaped sealed space. Through the coordinated action of the mechanical and rubber components, the rubber components are compressed after encasing the pipe, effectively sealing leaks. Its unique synergistic effect overcomes the shortcomings of traditional technologies, such as poor adaptability and insufficient sealing, and it shows significant advantages, especially in underwater construction and complex leakage scenarios.

[0004] One publicly available hydraulic underwater mechanical pipe clamp uses two semi-cylindrical semi-body components spliced ​​together to form a complete circular structure to cover the outside of the pipeline and seal it with built-in rubber components. However, this hydraulic mechanical pipe clamp is susceptible to displacement under external forces after installation, leading to seal failure and leakage. It has technical defects of insufficient safety and reliability. Furthermore, it cannot effectively seal two broken and misaligned pipelines, making it difficult to meet the pipeline maintenance needs under complex working conditions.

[0005] Therefore, there is an urgent need to propose a mechanical pipe clamp to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a mechanical pipe clamp that solves the problem of pipe clamps being easily moved by external forces by setting a clamp slip and clamp sleeve structure, avoids failure caused by pipe clamp displacement, realizes reliable connection between pipe clamp and pipeline, and ensures normal transportation of medium in the pipe.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A mechanical pipe clamp, comprising:

[0009] The pipe clamp body has two spherical shells on both sides, and a first channel is provided inside the pipe clamp body. The two sides of the first channel are respectively connected to the two spherical shells.

[0010] The device has two deflection sections, each containing a second channel and a groove. One end of the second channel is connected to the bottom of the groove, and the outer walls of the two spherical shells are slidably connected to the groove walls of the two grooves, respectively.

[0011] The slip and slip sleeve, the outer wall of the slip is connected to the side wall at the other end of the second channel, the inner surface of the slip is provided with serrations, the inner surface of the slip sleeve is provided with a first inclined surface, the outer surface of the slip is provided with a second inclined surface, and the first inclined surface and the second inclined surface are in contact.

[0012] The flange and rubber are connected to the other end of the deflection section by connecting bolts. One end of the flange abuts against one end of the slip sleeve through the rubber. The rubber and the flange are coaxially arranged.

[0013] Preferably, the mechanical pipe clamp also includes a first bolt and a first nut. The pipe clamp body includes a first pipe clamp and a second pipe clamp. The first bolt passes through the first pipe clamp and the second pipe clamp and is threadedly connected to the first nut.

[0014] Preferably, the mechanical pipe clamp also includes a second bolt and a second nut, and both deflection sections include a first deflection section and a second deflection section. The second bolt passes through the first deflection section and the second deflection section and is threadedly connected to the second nut.

[0015] Preferably, the mechanical pipe clamp also includes a hydraulic cylinder and a bracket, with the bracket fixedly connected to the pipe clamp body and the fixed end of the hydraulic cylinder fixedly connected to the bracket.

[0016] Preferably, the number of hydraulic cylinders and the number of supports are both two and correspond one-to-one, with the two hydraulic cylinders symmetrically distributed on both sides of the pipe clamp body.

[0017] Preferably, the mechanical pipe clamp also includes an adjusting bolt, which is threaded through the groove wall and connected to the outer wall of the spherical shell.

[0018] Preferably, the number of adjusting bolts is at least two.

[0019] Preferably, the mechanical pipe clamp also includes a hinge and a lifting ring. The hinge includes a first connecting part and a second connecting part that are rotatably connected. The first connecting part is fixedly connected to the surface of the pipe clamp body, and the second connecting part is detachably connected to the lifting ring.

[0020] Preferably, the mechanical pipe clamp also includes a plug, a test hole is provided on the side wall of the first channel, the plug is provided with external threads, the test hole is provided with internal threads, and the external threads and internal threads are threaded together.

[0021] Preferably, the mechanical pipe clamp also includes a gasket, which is sandwiched between the rubber and the slip sleeve, and is coaxially arranged with the flange.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a mechanical pipe clamp, including a clamp body, two deflection sections, slips, slip sleeves, a flange, and rubber. Tightening the connecting bolts applies pressure to the rubber through the flange, which then transmits the pressure to the slip sleeve. The fit between the first and second inclined surfaces creates a stable, integrated structure between the slips, slip sleeve, and clamp body. Furthermore, the serrations on the inner wall of the slips tightly connect to the outer surface of the pipe, ensuring a reliable connection between the clamp body and the pipe. This prevents the clamp body from failing to seal at pipe breaks due to displacement along the pipe. The two deflection sections can also tightly connect two disconnected pipes, ensuring the normal transport of the medium within the pipeline and effectively guaranteeing the continuous and stable operation of the pipeline. This meets the actual needs of production and daily life for oil transport and significantly improves the reliability and practicality of pipeline maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the mechanical pipe clamp provided in this embodiment;

[0025] Figure 2 This is a cross-sectional structural diagram of the mechanical pipe clamp provided in this embodiment.

[0026] In the picture:

[0027] 100. Pipe clamp body; 110. Spherical shell; 120. First channel; 130. Test pressure hole; 200. Deflection section; 210. Second channel; 220. Groove; 230. First deflection section; 240. Second deflection section; 310. Slip; 311. First inclined surface; 312. Serration; 320. Slip sleeve; 410. Flange; 411. Connecting bolt; 420. Rubber; 430. Gasket; 510. First bolt; 520. First nut; 530. Second bolt; 540. Second nut; 550. Adjusting bolt; 610. Hydraulic cylinder; 620. Bracket; 710. Hinge; 720. Lifting ring; 810. Plug; 910. First sealing strip; 920. Second sealing strip; 930. Third sealing strip. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] This embodiment provides a mechanical pipe clamp that solves the problem of pipe clamps being easily moved by external forces by setting a clamp slip and clamp sleeve structure, avoids failure caused by pipe clamp displacement, realizes a reliable connection between the pipe clamp and the pipeline, and ensures the normal transportation of the medium inside the pipe.

[0033] Specifically, such as Figures 1 to 2As shown, a mechanical pipe clamp includes a pipe clamp body 100, two deflection sections 200, a clamp slip 310, a clamp slip sleeve 320, a flange 410, and rubber 420. The pipe clamp body 100 has two spherical shells 110 on both sides. A first channel 120 is provided inside the pipe clamp body 100, with both sides of the first channel 120 communicating with the two spherical shells 110 respectively. Each of the two deflection sections 200 has a second channel 210 and a groove 220. One end of the second channel 210 communicates with the bottom of the groove 220. The outer walls of the two spherical shells 110 are slidably connected to the groove walls of the two grooves 220 respectively. The outer wall of the clamp slip 310 is connected to the side wall of the other end of the second channel 210. The inner surface of the clamp slip 310 has serrations 312. The inner surface of the clamp slip sleeve 320 has a first inclined surface 311, and the outer surface of the clamp slip 310 has a second inclined surface. The first inclined surface 311 and the second inclined surface are in contact. Flange 410 is connected to the other end of deflection section 200 by connecting bolt 411. One end of flange 410 abuts against one end of slip sleeve 320 via rubber 420. Rubber 420 and flange 410 are coaxially arranged.

[0034] Tightening the connecting bolts 411 applies pressure to the rubber 420 via the flange 410. The rubber 420 transmits this pressure to the slip sleeve 320. The fit between the first and second inclined surfaces allows the slip 310, slip sleeve 320, and pipe clamp body 100 to form a stable integrated structure. Furthermore, the serrations 312 on the inner wall of the slip 310 tightly connect to the outer surface of the pipe, ensuring a reliable connection between the pipe clamp body 100 and the pipe. This prevents the pipe clamp body 100 from failing to seal the pipe at damaged points due to displacement along the pipe. The two deflection sections 200 can also tightly connect two disconnected pipes, ensuring the normal transport of the medium within the pipe and effectively guaranteeing the continuous and stable operation of the pipeline. This meets the actual needs of production and daily life for oil transport, significantly improving the reliability and practicality of pipeline maintenance. The fit between the spherical shell 110 and the groove 220 allows for adjustment of the connection angle between the deflection section 200 and the pipe clamp body 100, suitable for repairing pipes with different bending angles.

[0035] It should be noted that there are two of each of the slip 310, slip sleeve 320, flange 410, and rubber 420, and correspondingly, there are also two of each of the grooves 220. In this embodiment, the groove 220 is a spherical groove; in other embodiments, the groove 220 may also be an arc-shaped groove.

[0036] Furthermore, to improve the tightness of the connection between the slip 310 and the pipe, there are multiple serrations 312. These multiple serrations 312 are parallel to each other and are evenly distributed along the axial direction of the slip 310 on its inner surface. It should be noted that the number of serrations 312 can be adjusted according to specific circumstances, and no further constraints are imposed here.

[0037] Optionally, the mechanical pipe clamp also includes a first bolt 510 and a first nut 520. The pipe clamp body 100 includes a first pipe clamp and a second pipe clamp. The first bolt 510 passes through the first pipe clamp and the second pipe clamp and is threadedly connected to the first nut 520. The damaged pipe is placed into the first channel 120 through the gap between the first pipe clamp and the second pipe clamp, which improves the convenience of the pipe clamp body 100 covering the pipe.

[0038] Furthermore, the mechanical pipe clamp also includes a second bolt 530 and a second nut 540. Both deflection sections 200 include a first deflection section 230 and a second deflection section 240. The second bolt 530 passes through the first deflection section 230 and the second deflection section 240 and is threadedly connected to the second nut 540. The pipe is inserted into the second channel 210 through the gap between the first deflection section 230 and the second deflection section 240, which improves the convenience of the deflection section 200 covering the pipe.

[0039] Furthermore, to improve the sealing performance when the first pipe clamp and the second pipe clamp are connected, a first sealing strip 910 is provided at the connection between the first pipe clamp and the second pipe clamp. The first sealing strip 910 extends axially along the first pipe and is sandwiched between the outer surface of the pipe and the inner wall of the first channel 120. To improve the sealing performance when the first deflection section 230 and the second deflection section 240 are connected, a second sealing strip 920 is provided at the connection between the first deflection section 230 and the second deflection section 240. The second sealing strip 920 extends axially along the second pipe and is sandwiched between the outer surface of the pipe and the inner wall of the second channel 210. To improve the sealing performance of the connection between the spherical shell 110 and the groove 220 and to prevent media leakage, a third sealing strip 930 is provided on the groove wall of the groove 220. The third sealing strip 930 is distributed circumferentially along the groove wall of the groove 220 and is sandwiched between the outer wall of the spherical shell 110 and the groove wall of the groove 220.

[0040] Optionally, the mechanical pipe clamp also includes a hydraulic cylinder 610 and a bracket 620. The bracket 620 is fixedly connected to the pipe clamp body 100, and the fixed end of the hydraulic cylinder 610 is fixedly connected to the bracket 620. The hydraulic cylinder 610 supports the first and second pipe clamps apart and wraps around the damaged pipe. In this embodiment, the bracket 620 is welded to the pipe clamp body 100; in other embodiments, the bracket 620 is fused or bonded to the pipe clamp body 100. In this embodiment, the fixed end of the hydraulic cylinder 610 is welded to the bracket 620; in other embodiments, the fixed end of the hydraulic cylinder 610 is fused or bonded to the bracket 620.

[0041] Furthermore, the number of hydraulic cylinders 610 and the number of supports 620 are both two and correspond one-to-one. The two hydraulic cylinders 610 are symmetrically distributed on both sides of the pipe clamp body 100, which facilitates the disassembly of the first pipe clamp and the second pipe clamp and improves the efficiency of pipeline maintenance.

[0042] Optionally, the mechanical pipe clamp also includes an adjusting bolt 550, which is threaded through the groove wall of the groove 220 and connected to the outer wall of the spherical shell 110. After the deflection section 200 and the pipe clamp body 100 are rotated at a certain angle, they are fixed by the adjusting bolt 550 to fix the deflection angle, which facilitates the maintenance of pipes at different angles and improves the applicability of the device.

[0043] Furthermore, the number of adjusting bolts 550 is at least two. These at least two adjusting bolts 550 are respectively threaded through the groove walls of the two grooves 220 and connected to the outer wall of the spherical shell 110, thereby adjusting the deflection angle of the two deflection segments 200. It should be noted that the deflection angle of the two deflection segments 200 depends on the specific circumstances and is not subject to excessive restrictions in this embodiment. In this embodiment, one adjusting bolt 550 corresponds to one groove 220. In other embodiments, to improve the stability of the connection after the deflection segments 200 deflect, two adjusting bolts 550 may correspond to one groove 220, or three adjusting bolts 550 may correspond to one groove 220.

[0044] Optionally, the mechanical pipe clamp also includes a hinge 710 and a lifting ring 720. The hinge 710 includes a first connecting part and a second connecting part that are rotatably connected. The first connecting part is fixedly connected to the surface of the pipe clamp body 100, and the second connecting part is detachably connected to the lifting ring 720. The pipe clamp body 100 can be moved by cooperating with an external lifting mechanism and the lifting ring 720. Furthermore, after maintenance, the lifting ring 720 can be disassembled from the second connecting part, reducing maintenance costs. In this embodiment, the first connecting part is welded to the pipe clamp body 100; in other embodiments, the first connecting part is fused or bonded to the pipe clamp body 100. In this embodiment, the second connecting part is bolted to the lifting ring 720; in other embodiments, the second connecting part is snapped into place with the lifting ring 720.

[0045] Optionally, the mechanical pipe clamp also includes a plug 810. A test pressure hole 130 is provided on the side wall of the first channel 120. The plug 810 has external threads, and the test pressure hole 130 has internal threads on its wall. The external threads and internal threads are threaded together. Gas is injected through the test pressure hole 130, and the plug 810 is used to seal the main test pressure hole 130 for pressure testing. After the pressure test, the plug 810 is removed to release the gas. In daily operation, the plug 810 serves as a dustproof device and prevents the medium inside the pipe from flowing out, further improving the sealing performance of the pipe clamp body.

[0046] Optionally, the mechanical pipe clamp also includes a gasket 430, which is sandwiched between the rubber 420 and the slip sleeve 320. The gasket 430 is coaxially arranged with the flange 410, which further improves the adjustment process of the connecting bolt 411, making the connection between the flange 410 and the slip sleeve 320 tighter and further improving the sealing performance of the pipe connection.

[0047] The steps and principles for using the mechanical pipe clamp provided in this embodiment are as follows:

[0048] S1. The hoisting mechanism uses the lifting ring 720 to place the center of gravity of the mechanical pipe clamp directly above the damaged pipe;

[0049] S2. The opening of the first pipe clamp and the second pipe clamp is controlled by adjusting the hydraulic cylinder 610. The mechanical pipe clamp is used to make the axis of the pipe clamp body 100 coincide with the axis of the pipeline to be covered by the hoisting machine. The first pipe clamp and the second pipe clamp are controlled to cover the pipeline by adjusting the hydraulic cylinder 610.

[0050] S3. The pipe clamp body 100 is pre-tightened by the connecting bolts 411, and the flange 410 moves to squeeze the rubber 420 and the gasket 430 to pre-tighten the clamp sleeve 320.

[0051] S4. After pre-tightening, inject gas through the test hole 130 on the pipe clamp body 100 to conduct a pressure test. After passing the test, remove the pressure testing device. It should be noted that the pressure test can be performed using commonly used testing methods in this field, which will not be elaborated here.

[0052] The mechanical pipe clamp provided in this embodiment can effectively achieve rapid sealing and reliable connection of damaged pipelines under different working conditions. It is applicable to a wide range of pipeline specifications; by replacing different sizes of clamp 310 and clamp sleeve 320, it is compatible with various transport pipelines with diameters from 4 inches to 42 inches. Whether it is a small-diameter branch pipeline or a large-diameter trunk pipeline that is damaged, it can be efficiently repaired using the mechanical pipe clamp provided in this embodiment, significantly improving the versatility and adaptability of pipeline maintenance and repair operations, and meeting the diverse application needs in complex engineering scenarios.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mechanical pipe clamp, characterized in that, include: The pipe clamp body (100) has two spherical shells (110) on both sides, and a first channel (120) is provided inside the pipe clamp body (100). The two sides of the first channel (120) are respectively connected to the two spherical shells (110). Two deflection sections (200), each of the two deflection sections (200) is provided with a second channel (210) and a groove (220), one end of the second channel (210) is connected to the bottom of the groove (220), and the outer walls of the two spherical shells (110) are slidably connected to the groove walls of the two grooves (220) respectively. The slip (310) and slip sleeve (320) are provided. The outer wall of the slip (310) is connected to the side wall of the other end of the second channel (210). The inner surface of the slip (310) is provided with serrations (312). The inner surface of the slip sleeve (320) is provided with a first inclined surface (311). The outer surface of the slip (310) is provided with a second inclined surface. The first inclined surface (311) fits against the second inclined surface. A flange (410) and a rubber (420) are provided. The flange (410) is connected to the other end of the deflection section (200) by a connecting bolt (411). One end of the flange (410) abuts against one end of the slip sleeve (320) through the rubber (420). The rubber (420) and the flange (410) are coaxially arranged.

2. The mechanical pipe clamp according to claim 1, characterized in that, The mechanical pipe clamp also includes a first bolt (510) and a first nut (520). The pipe clamp body (100) includes a first pipe clamp and a second pipe clamp. The first bolt (510) passes through the first pipe clamp and the second pipe clamp and is threadedly connected to the first nut (520).

3. The mechanical pipe clamp according to claim 2, characterized in that, The mechanical pipe clamp also includes a second bolt (530) and a second nut (540). Both deflection sections (200) include a first deflection section (230) and a second deflection section (240). The second bolt (530) passes through the first deflection section (230) and the second deflection section (240) and is threadedly connected to the second nut (540).

4. The mechanical pipe clamp according to claim 3, characterized in that, The mechanical pipe clamp also includes a hydraulic cylinder (610) and a bracket (620). The bracket (620) is fixedly connected to the pipe clamp body (100), and the fixed end of the hydraulic cylinder (610) is fixedly connected to the bracket (620).

5. The mechanical pipe clamp according to claim 4, characterized in that, The number of hydraulic cylinders (610) and the number of brackets (620) are both two and correspond one-to-one. The two hydraulic cylinders (610) are symmetrically distributed on both sides of the pipe clamp body (100).

6. The mechanical pipe clamp according to claim 1, characterized in that, The mechanical pipe clamp also includes an adjusting bolt (550), which is threaded through the groove wall of the groove (220) and connected to the outer wall of the spherical shell (110).

7. The mechanical pipe clamp according to claim 6, characterized in that, The number of adjusting bolts (550) is at least two.

8. The mechanical pipe clamp according to any one of claims 1-7, characterized in that, The mechanical pipe clamp also includes a hinge (710) and a lifting ring (720). The hinge (710) includes a first connecting part and a second connecting part that are rotatably connected. The first connecting part is fixedly connected to the surface of the pipe clamp body (100), and the second connecting part is detachably connected to the lifting ring (720).

9. The mechanical pipe clamp according to any one of claims 1-7, characterized in that, The mechanical pipe clamp also includes a plug (810). A test hole (130) is provided on the side wall of the first channel (120). The plug (810) is provided with an external thread, and the test hole (130) is provided with an internal thread on its wall. The external thread and the internal thread are threaded together.

10. The mechanical pipe clamp according to any one of claims 1-7, characterized in that, The mechanical pipe clamp also includes a gasket (430), which is sandwiched between the rubber (420) and the slip sleeve (320), and the gasket (430) is coaxially arranged with the flange (410).

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