An auxiliary clamp for external clamping and repairing pipe cracks

Abstract

This utility model relates to the field of pipeline crack sealing technology, and provides an auxiliary clamp for external clamping and repairing pipeline cracks, including a clamp body; an injection tube fixedly connected to the middle position of the clamp body surface, with a sealing bolt threaded onto the injection tube; fixing bolts evenly spaced at the bottom end of one of the clamp bodies, and nuts evenly spaced on both sides of the other clamp body to mate with the threads of the fixing bolts; anti-loosening components assembled on both sides of the clamp body; and splicing components assembled at both ends of the clamp body. The auxiliary clamp for external clamping and repairing pipeline cracks provided by this solution can use the anti-loosening components to limit and tighten the nuts and fixing bolts after locking and installation, thereby effectively preventing the nuts and fixing bolts from loosening and causing a decrease in the tightness of the installation between the clamp body and the pipeline, ensuring a long-term and effective tight seal between them.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline crack sealing technology, and in particular relates to an auxiliary clamp for external clamping and repair of pipeline cracks. Background Technology

[0002] Pipelines are conduits that transport fluids (including water, gas, and oil) to another location. They are widely used in our daily lives and industrial production. However, during use, leaks caused by external ruptures in pipelines are inevitable. Replacing an entire section of pipeline is costly and difficult. Therefore, external repair and sealing auxiliary clamps are now used to seal and repair pipeline cracks. The clamps are fixed to the surface of the pipeline crack, and then sealant is injected into the gap between the clamps and the pipeline to seal and repair the crack.

[0003] Chinese patent CN105020536B discloses a pressurized sealing clamp and its implementation method for pipeline leakage conditions. The patent describes a method where "a semi-annular sealing agent film is embedded in the grooves of two semi-annular clamp bodies; the two semi-annular clamp bodies are joined at the leak point of the pipeline and bolted to form an annular structure; a special injection tool is used to inject sealing agent into the two semi-annular clamp bodies through injection channels, filling the gaps between the semi-annular sealing agent film and the grooves of the semi-annular clamp bodies. The advantage is that the already cured semi-annular sealing agent film temporarily acts at the leak point, and the injected sealant fills the cavity of the clamp, allowing time for the sealant to cure into a dense structure, thus achieving a pressurized sealing effect. This completely solves the problem that pressurized sealing of pipelines cannot be directly performed in flammable, explosive, or strongly oxidizing media conditions."

[0004] However, in the above solution, the two sealing clamps are locked in place by bolts and nuts. But during long-term use, there is a possibility that the threads of the bolts and nuts may loosen, which will affect the tightness of the locking installation of the two sealing clamps and reduce the sealing performance of the pipe cracks. Therefore, it is necessary to design an auxiliary clamp for external clamping and repair of pipe cracks. Utility Model Content

[0005] This utility model provides an auxiliary clamp for external clamping and repairing pipe cracks, which aims to solve the problem that some auxiliary clamps currently in use are inconvenient for tightening bolts and nuts to prevent loosening.

[0006] This utility model is implemented as follows: an auxiliary clamp for external clamping and repairing pipe cracks includes a clamp body; an injection tube fixedly connected to the middle position of the surface of the clamp body, the injection tube being threaded with a sealing bolt; fixing bolts evenly spaced at the bottom end of one of the clamp bodies, and nuts evenly spaced on both sides of the other clamp body to mate with the threads of the fixing bolts; anti-loosening components assembled on both sides of the clamp body, the anti-loosening components being used to limit and tighten the nuts and fixing bolts; and splicing components assembled at both ends of the clamp body, the splicing components being used to splice and assemble the clamp bodies together.

[0007] The anti-loosening component includes: a fixing groove equally spaced on both sides of the clamp body, a slide rod movably connected inside the fixing groove, one end of the slide rod extending to the outside of the clamp body and fixedly connected to a connecting plate; an anti-loosening plate rotatably connected to one side of the top of the connecting plate; and a fixing spring wrapped around the surface of the slide rod, the two ends of the fixing spring being fixedly connected to the inner wall of the fixing groove and one end of the slide rod, respectively.

[0008] Preferably, the inner wall of the anti-loosening plate is arc-shaped, and the bottom end of the anti-loosening plate is rotatably connected to the top end of the connecting plate through a damping rotating shaft.

[0009] Preferably, the inner wall of the fixing groove is provided with a sliding groove, and the two ends of one side of the sliding rod are fixedly connected with sliders that slide in cooperation with the inside of the sliding groove.

[0010] Preferably, one end of the connecting plate is fixedly connected to one end of the slide rod by bolts, and the connecting plate is Z-shaped.

[0011] Preferably, the splicing assembly includes: a slot formed at an equal angle at one end of the clamp body, and a reserved slot formed at an equal angle at one end of the surface of the clamp body; a fastening bolt movably connected to the inner wall of the reserved slot, one end of the fastening bolt extending into the interior of the slot; and a locking block fixedly connected at an equal angle to the other end of the clamp body, the top of the locking block having a bolt hole threadedly engaged with one end of the fastening bolt.

[0012] Preferably, the card block and the inside of the card slot form an engaging structure, and the card slot and the card block are rectangular in shape.

[0013] Preferably, two sides of one end of the fastening bolt are welded with levers, and the top of the levers extends to the outside of the reserved groove.

[0014] Preferably, a rubber pad is fixedly connected to the inner wall of the clamp body, and the rubber pad is semi-circular in shape.

[0015] Preferably, the inner wall of the rubber pad is provided with anti-slip patterns at equal intervals, and the anti-slip patterns are arc-shaped.

[0016] Compared with related technologies, the external clamping repair auxiliary fixture for pipe cracks provided by this utility model has the following beneficial effects:

[0017] 1. After the clamp body is installed and fixed to the pipeline using nuts and fixing bolts, the anti-loosening component can be used to limit and tighten the nuts and fixing bolts, effectively preventing the threads from loosening and causing insufficient tightness between the clamp body and the pipeline, resulting in a decrease in sealing performance. This ensures long-term and effective secure installation. At the same time, the rubber gasket will adhere to the outer surface of the pipeline to form a seal and can automatically compensate for gaps caused by unevenness on the pipeline surface, ensuring effective repair and sealing of pipeline cracks.

[0018] 2. Through the set splicing components, multiple clamp bodies can be spliced ​​and assembled. Therefore, when the pipeline crack is long, it can be spliced ​​and assembled so that multiple clamp bodies can be assembled into a whole to be used for repairing and sealing long cracks, thereby improving its practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention after assembly;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model when it is not assembled;

[0021] Figure 3 This is a schematic diagram of the partially exploded assembly structure of this utility model;

[0022] Figure 4 This is a partial exploded view of the anti-loosening component of this utility model.

[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Injection tube; 2. Fixture body; 3. Rubber pad; 4. Anti-slip texture; 5. Splicing assembly; 501. Slot; 502. Block; 503. Pulling block; 504. Fastening bolt; 505. Reserved slot; 506. Bolt hole; 6. Anti-loosening assembly; 601. Anti-loosening plate; 602. Slider; 603. Slide groove; 604. Fixing groove; 605. Fixing spring; 606. Slide rod; 607. Connecting plate; 7. Nut; 8. Fixing bolt. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Example 1

[0028] A preferred embodiment of the external clamping repair auxiliary fixture for pipe cracks provided by this utility model is as follows: Figures 1 to 5 As shown: An auxiliary clamp for external clamping and repairing pipe cracks includes a clamp body 2; an injection tube 1 fixedly connected to the middle position of the surface of the clamp body 2, with a sealing bolt threaded onto the injection tube 1; fixing bolts 8 evenly spaced at the bottom of one clamp body 2, and nuts 7 evenly spaced on both sides of the other clamp body 2, which are threaded to engage with the fixing bolts 8; anti-loosening components 6 assembled on both sides of the clamp body 2, which are used to limit and tighten the nuts 7 and fixing bolts 8; and splicing components 5 assembled at both ends of the clamp body 2, which are used to splice and assemble the clamp bodies 2 together.

[0029] The anti-loosening component 6 includes: a fixing groove 604 equally spaced on both sides of the clamp body 2, a slide rod 606 movably connected inside the fixing groove 604, one end of the slide rod 606 extending to the outside of the clamp body 2 and fixedly connected to a connecting plate 607; an anti-loosening plate 601 rotatably connected to one side of the top of the connecting plate 607; and a fixing spring 605 wrapped around the surface of the slide rod 606, with both ends of the fixing spring 605 fixedly connected to the inner wall of the fixing groove 604 and one end of the slide rod 606, respectively.

[0030] It should be noted that some existing external clamping repair auxiliary fixtures for pipe cracks still have certain shortcomings in actual use. In the comparison document, the two sealing fixtures are locked and installed by bolts and nuts 7, but in the long-term use, there is a possibility that the threads of the bolts and nuts 7 may loosen, which will affect the tightness of the locking installation of the two sealing fixtures and lead to a decrease in the sealing performance of the pipe cracks.

[0031] In this embodiment, the clamp body 2 is placed over the crack in the pipe. Then, the connecting plate 607 is moved sequentially to slide the anti-loosening plate 601 to a suitable position. Next, the fixing bolts 8 are passed through the pre-drilled holes on both sides of the clamp body 2. Simultaneously, the threaded engagement between the nut 7 and the fixing bolts 8 secures the clamp body 2 firmly to the pipe. After the corresponding nuts 7 and fixing bolts 8 are tightened, the connecting plate 607 is released. The elastic force of the fixing spring 605 causes the connecting plate 607 to slide, which in turn causes the anti-loosening plate 601 to slide, limiting and pressing the top of the nut 7 and the bottom of the fixing bolt 8, effectively preventing the threads from engaging. Loosening can cause insufficient tightness between the clamp body 2 and the pipe, resulting in a decrease in the repair and sealing effect. After the clamp body 2 is installed, the rubber pad 3 will adhere to the outer surface of the pipe to form a seal and can automatically compensate for the gaps caused by unevenness of the pipe surface. The anti-slip texture 4 can improve the anti-slip effect between the inner wall of the rubber pad 3 and the pipe surface. Then, the sealing bolt on the injection tube 1 is opened, and sealant can be injected between the inner wall of the rubber pad 3 and the pipe surface through the injection tube 1 to further improve the repair and sealing effect on the outside of the pipe crack. At the same time, when the crack is long, the splicing component 5 can be used to achieve the overall splicing between multiple clamp bodies 2.

[0032] In a further preferred embodiment of the present invention, the inner wall of the anti-loosening plate 601 is arc-shaped, and the bottom end of the anti-loosening plate 601 is rotatably connected to the top end of the connecting plate 607 through a damping rotation shaft.

[0033] In this embodiment, an arc-shaped anti-loosening plate 601 is used so that it can both limit and tighten the top of the nut 7 and not be blocked by the fixing bolt 8.

[0034] In a further preferred embodiment of the present invention, a sliding groove 603 is provided on the inner wall of the fixing groove 604, and a slider 602 that slides and engages with the inside of the sliding groove 603 is fixedly connected to both ends of one side of the sliding rod 606.

[0035] In this embodiment, the sliding of the slider 602 and the inside of the groove 603 is used to improve the smoothness of the sliding of the slider 606.

[0036] In a further preferred embodiment of the present invention, one end of the connecting plate 607 is fixedly connected to one end of the slide rod 606 by bolts, and the shape of the connecting plate 607 is Z-shaped.

[0037] In this embodiment, the linkage between the anti-loosening plate 601 and the slide rod 606 is realized by using the connecting plate 607.

[0038] Example 2

[0039] Based on Embodiment 1, a preferred embodiment of the external clamping repair auxiliary fixture for pipe cracks provided by this utility model is as follows: Figures 1 to 5 As shown: The splicing component 5 includes: a slot 501 that is opened at an equal angle at one end of the clamp body 2, and a reserved slot 505 that is opened at an equal angle at one end of the surface of the clamp body 2; a fastening bolt 504 that is movably connected to the inner wall of the reserved slot 505, and one end of the fastening bolt 504 extends into the interior of the slot 501; and a block 502 that is fixedly connected at an equal angle to the other end of the clamp body 2, and the top of the block 502 has a bolt hole 506 that is threaded to one end of the fastening bolt 504.

[0040] In this embodiment, the locking block 502 is inserted into the slot 501 to achieve the initial splicing and assembly of multiple clamp bodies 2. Then, the fastening bolt 504 is inserted through the reserved slot 505 and tightened into the bolt hole 506 by rotating the lever 503, so that the slot 501 and the inside of the locking block 502 are firmly engaged, thereby achieving a firm splicing between multiple clamp bodies 2, which can meet the repair and sealing work of long cracks. Furthermore, a hexagonal groove is provided on the fastening bolt 504 so that when it is inconvenient to rotate the lever 503 manually, the fastening bolt 504 can be rotated by a hexagonal wrench.

[0041] In a further preferred embodiment of the present invention, the card block 502 and the card slot 501 form an engaging structure, and the card slot 501 and the card block 502 are rectangular in shape.

[0042] In this embodiment, the accurate splicing of the fixture bodies 2 is achieved by utilizing the engagement between the card block 502 and the card slot 501.

[0043] In a further preferred embodiment of the present invention, two sides of one end of the fastening bolt 504 are welded with a lever 503, and the top of the lever 503 extends to the outside of the reserved groove 505.

[0044] In this embodiment, the welded lever 503 facilitates manual rotation of the fastening bolt 504.

[0045] In a further preferred embodiment of the present invention, a rubber pad 3 is fixedly connected to the inner wall of the clamp body 2, and the rubber pad 3 is semi-circular in shape.

[0046] In this embodiment, a semi-circular rubber pad 3 is used to adhere to the outer surface of the pipe to form a seal, and can automatically compensate for gaps caused by unevenness on the pipe surface.

[0047] In a further preferred embodiment of this utility model, the inner wall of the rubber pad 3 is provided with anti-slip patterns 4 at equal intervals, and the anti-slip patterns 4 are arc-shaped.

[0048] In this embodiment, the anti-slip texture 4 is used to improve the anti-slip effect between the inner wall of the rubber pad 3 and the surface of the pipe.

[0049] In summary, the splicing component 5 is used to splice and assemble multiple clamp bodies 2, which is convenient for using longer gaps. Furthermore, the anti-loosening component 6 is used to limit and tighten the nuts 7 and fixing bolts 8, preventing them from becoming loose and affecting the tightness of the clamp body 2 and the pipe.

[0050] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0051] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. An auxiliary clamp for external clamping and repairing pipe cracks, characterized in that, include: Fixture body (2); An injection tube (1) is fixedly connected to the middle position of the surface of the clamp body (2), and a sealing bolt is threaded onto the injection tube (1); Fixing bolts (8) are evenly spaced at the bottom of one of the clamp bodies (2), and nuts (7) that are threaded and matched with the fixing bolts (8) are evenly spaced on both sides of the other clamp body (2). Anti-loosening components (6) are assembled on both sides of the clamp body (2). The anti-loosening components (6) are used to limit and tighten the nut (7) and the fixing bolt (8). The splicing components (5) are assembled at both ends of the clamp body (2), and the splicing components (5) are used to realize the splicing assembly between the clamp bodies (2); The anti-loosening component (6) includes: Fixing grooves (604) are equally spaced on both sides of the fixture body (2). A sliding rod (606) is movably connected inside the fixing groove (604). One end of the sliding rod (606) extends to the outside of the fixture body (2) and is fixedly connected to a connecting plate (607). Rotary connection to the anti-loosening plate (601) on one side of the top of the connecting plate (607); A fixing spring (605) is wound around the surface of the slide rod (606), and the two ends of the fixing spring (605) are fixedly connected to the inner wall of the fixing groove (604) and one end of the slide rod (606), respectively.

2. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 1, characterized in that, The inner wall of the anti-loosening plate (601) is arc-shaped, and the bottom end of the anti-loosening plate (601) is rotatably connected to the top end of the connecting plate (607) through a damping rotation shaft.

3. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 1, characterized in that, The inner wall of the fixed groove (604) is provided with a sliding groove (603), and the two ends of one side of the sliding rod (606) are fixedly connected with sliders (602) that slide in cooperation with the inside of the sliding groove (603).

4. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 1, characterized in that, One end of the connecting plate (607) is fixedly connected to one end of the slide rod (606) by bolts, and the connecting plate (607) is Z-shaped.

5. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 1, characterized in that, The splicing component (5) includes: A slot (501) is formed at one end of the fixture body (2) at equal angles, and a reserved slot (505) is formed at one end of the surface of the fixture body (2) at equal angles. A fastening bolt (504) is movably connected to the inner wall of the reserved groove (505), one end of which extends into the interior of the slot (501); A locking block (502) is fixedly connected at an equal angle to the other end of the clamp body (2). The top of the locking block (502) is provided with a bolt hole (506) that is threaded to one end of the fastening bolt (504).

6. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 5, characterized in that, The card block (502) and the card slot (501) form an engaging structure, and the card slot (501) and the card block (502) are rectangular in shape.

7. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 5, characterized in that, The fastening bolt (504) has two sides of a lever (503) welded on one end, and the top of the lever (503) extends to the outside of the reserved groove (505).

8. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 1, characterized in that, A rubber pad (3) is fixedly connected to the inner wall of the clamp body (2), and the rubber pad (3) is semi-circular in shape.

9. The auxiliary clamp for external clamping and repairing pipe cracks as described in claim 8, characterized in that, The inner wall of the rubber pad (3) is provided with anti-slip patterns (4) at equal intervals, and the anti-slip patterns (4) are arc-shaped.

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